99results about How to "Working temperature is suitable" patented technology

The invention provides a router. The router comprises a housing and a circuit board, wherein the circuit board is located in the housing and fixedly connected with the housing. The router is characterized in that ventilation holes are formed in the side wall of the housing; a fan is arranged on the inner side of the side wall; the fan is fixedly connected with the inner side wall of the housing. The router has the beneficial effects that the added ventilation holes and the fan can exhaust hot air in the housing in time to cool the circuit board, keep the circuit board at proper working temperature, and prolong the service life of the circuit board; air holes are added under the circuit board, and thus the air can be introduced in the housing through the air holes, which is convenient to cool the circuit board.

The invention provides an automobile temperature control device and a control method thereof. The method comprises the steps that S1, monitoring and acquiring a first actual temperature value of the surface of an evaporator of a passenger compartment, a battery pack temperature value of a battery cooling system, a target temperature value of the surface of the evaporator of the passenger compartment and a target temperature value of a battery pack in real time; S2, judging whether the passenger compartment side has a refrigeration requirement or not according to the first actual temperature value and a target temperature value on the surface of the passenger compartment evaporator, and judging whether the battery side has a refrigeration requirement or not according to the battery pack temperature value and the battery pack target temperature value; and S3, determining the rotating speed of the compressor according to the judgment result in the step S2, and adjusting the opening degreeof the first electronic expansion valve and / or the second electronic expansion valve. Accurate distribution of refrigerants can be achieved, the energy consumption of a system is reduced, and the economy of the whole vehicle is improved.

A battery cooling system comprises single batteries and a heat conduction pipe, wherein the heat conduction pipe is arranged among the single batteries, a heat conduction working medium is injected to the interior of the heat conduction pipe, the heat conduction pipe comprises an outer sleeve pipe and an inner sleeve pipe, an external passage is formed between the outer sleeve pipe and the inner sleeve pipe, the interior of the inner sleeve pipe is provided with an internal passage, one end of the outer sleeve pipe is sealed, the internal passage is connected with the external passage, and the flow directions of the heat conduction working mediums in the internal passage and the external passage are opposite. The battery cooling system also comprises a phase change heat storage material, and the phase change heat storage material fills the gap among the single batteries and the heat conduction pipe. Heat generated during the usage process of the batteries is firstly dissipated through the phase change heat storage material, the circulated heat conduction working medium in the heat conduction pipe then enters a cooling system after heat absorption, and meanwhile, the low-temperature heat conduction working medium is supplemented to the inner sleeve pipe. The invention also provides an electromobile battery cooling management system. In the electromobile battery cooling management system, a temperature detector is arranged outside the single batteries, an acquisition end of a controller is connected with the temperature detector, an execution end of the controller is connected with a cooling device, and thus, real-time control on cooling of the single batteries is achieved.

The invention discloses a lithium ion secondary battery. The lithium ion secondary battery comprises a positive pole piece, a negative pole piece, an isolating membrane and an electrolyte, wherein thepositive pole piece comprises a positive current collector and a positive active material layer which is arranged on the surface of the positive current collector and contains a positive active material, and the negative pole piece comprises a negative current collector and a negative active material layer which is arranged on the surface of the negative current collector and contains a negativeactive material; wherein the positive electrode active substance comprises lithium iron phosphate, and the negative electrode active substance comprises graphite; wherein the positive current collector and / or the negative current collector are / is a composite current collector, and the composite current collector comprises an organic support layer and a conductive layer arranged on at least one surface of the organic support layer. The lithium ion secondary battery provided by the invention has good low-temperature performance.

The invention discloses a phase-change material energy-storage based cooling apparatus for a power battery. The cooling apparatus comprises a power battery, a cooling liquid circulation module and a refrigeration module, wherein the power battery is connected with the cooling liquid circulation module to form heat exchange circulation; heat exchange is carried out between the cooling liquid circulation module and the refrigeration module; the power batter is electrically connected with the cooling liquid circulation module and the refrigeration module separately; and according to the phase-change material energy-storage based cooling method for the power battery, the to-be-cooled power battery pack is cooled by the phase-change material energy-storage based cooling apparatus for the power battery. The cooling apparatus has the advantages of reasonable structure, high temperature control precision, high radiation capability, convenience in use, low power consumption and small size, and is more applicable to popularization and application in the temperature control of the power battery pack.

The invention discloses an LED (light-emitting diode) dot matrix display screen and a combined dot matrix display screen. The dot matrix display screen comprises a heat-dissipating substrate, a PCB (printed circuit board), an uniformly-arrayed LED light-emitting unit, an imaging controller, a layout circuit conducting layer, a pervious-to-light packaging colloid for packaging LED chips, and a plastic plate forming the pervious-to-light packaging colloid for packaging the LED chips, wherein the LED light-emitting unit comprises more than one LED chips, guide lines and the pervious-to-light packaging colloid; the guide lines electrically connect the LED chips with the layout circuit conducting layer, and the pervious-to-light packaging colloid is used for packaging the LED chips; a hermetically-sealed outer cavity side wall which is hermetically connected with the plastic plate and the heat-dissipating substrate is arranged between the plastic plate and the heat-dissipating substrate; the heat-dissipating substrate, the hermetically sealed outer cavity side wall and the plastic plate defines a hermetically-sealed cavity, and the PCB is accommodated in the hermetically-sealed cavity; and the heat-dissipating substrate, the plastic plate and the pervious-to-light packaging colloid are directly contacted with the outside air. The dot matrix display screen disclosed by the invention has the advantages that of being simple in structure and low in cost and having good waterproof and heat-dissipating effects since the PCB is accommodated in the hermetically-sealed cavity formed by the heat-dissipating substrate, the hermetically sealed outer cavity side wall and the plastic plate.

The invention discloses a manufacture method of an LED integrated structure, comprises the following process steps: molding a heat dissipation substrate; molding a layout circuit conducting layer; molding a position lens or the plastic part of the lens; carrying out die bonding; electrically connecting an LED chip with the layout circuit conducting layer; and packaging the LED chip and wires. Themethod has the advantages of less process, simple technology, low manufacturing cost, small heat resistance and good heat dissipation of the intermediate link of manufacturing the LED chip and accurate position relation of the lens and the chip, and the LED integrated structure has the advantages of high luminous flux, simple structure, simple assembling, good heat dissipation effect and good optical effect.

Provided are a printing head, a printing method, a printing system, a storage medium and a printer. The printing head comprises a shell, a constant temperature device and a board card, wherein the constant temperature device is in contact with the board card; the constant temperature device comprises a heat exchange block, a liquid inlet pipe, a liquid outlet pipe, a first circulating pump and a first radiator; one end of the heat exchange block communicates with the liquid inlet pipe, and the other end, opposite to the former end, of the heat exchange block communicates with the liquid outletpipe; one end of the first radiator communicates with the liquid inlet pipe, and the other end, opposite to the former end, of the first radiator communicates with the liquid outlet pipe; the first circulating pump is arranged on the liquid inlet pipe or the liquid outlet pipe; the first radiator, the liquid inlet pipe, the heat exchange block, the liquid outlet pipe and the first circulating pump communicate to form a cooling passage; and the shell encloses a space, the heat exchange block and the board card are both arranged inside the shell, and the first radiator is arranged outside the shell. The working temperature of the board card is guaranteed, and the service life of a precision component is prolonged.

The invention discloses a low backpressure rotary compressor. The low backpressure rotary compressor comprises a housing, a motor and a compressing mechanism; the inside of the housing is provided with a chamber; the top of the housing is provided with an air suction pipe; the motor is arranged in the chamber, and the chamber is divided into an upper chamber and a lower chamber by the motor; channels are arranged between the outer surface of the motor and the inner surface of the housing, and / or in the motor; one end of each channel is communicated with the upper chamber, and the other end of each channel is communicated with the lower chamber; the compressing mechanism is arranged under the motor, and is provided with an air suction pot. Exhaust volume of the low backpressure rotary compressor is V, flow area of the channels is S, rotating speed of the motor is F, and flow rate of air passing through the channels is v, so that v=(V*F) / S. When F<=60rad / s, 2(m / s)<=v<=25(m / s); when F>60rad / s, 8(m / s)<=v<=40(m / s). The low backpressure rotary compressor is reasonably designed, so that cooling effect is excellent, and flow resistance of air in the channels is reduced.

An LED lamp comprises a light-permeable lamp cover, a radiating base, LED light emitting units, a layout circuit conductive layer and a fixing mechanism, wherein the layout circuit conductive layer is connected with the LED light emitting units electrically, and the fixing mechanism is used for fixing the LED lamp at a set position. The LED light emitting units are fixed on the radiating base. The light-permeable lamp cover and the radiating base are mounted together to form a containing cavity for containing the LED light emitting units. The fixing mechanism is fixed on the radiating base directly, integrated to the radiating base, fixed on the light-permeable lamp cover directly, or integrated to the light-permeable lamp cover. Radiating through holes, which match with the LED light emitting units in arrangement, are further arranged among the LED light emitting units. Each LED light emitting unit is adjacent to the corresponding radiating through hole which penetrates through the light-permeable lamp cover and the radiating base. Both ends of each radiating through hole are communicated with air to form an air convection radiating passage. The LED lamp has the advantages that the LED lamp is simple in structure and effective in radiating, and the service life of the LED light emitting unit is long.

The invention provides a gearbox cooling system and a cooling method thereof and a vehicle, and relates to the technical field of vehicle equipment. The gearbox cooling system comprises a gearbox body, a first thermostat, a second thermostat, an air-cooled oil cooler and a water-cooled oil cooler. Engine oil flowing of the gearbox body and the air-cooled oil cooler is controlled through the firstthermostat. When a gearbox is started and warmed up, engine oil in the gearbox body is not cooled, and the warming-up speed of engine coolant is increased. In addition, when the air-cooled oil coolercannot meet the cooling requirements, engine oil flowing of a gearbox oil inlet pipe and the water-cooled oil cooler is controlled through the second thermostat, so that the cooling efficiency of theengine oil is improved through the added water-cooled oil cooler. The technical problems that cooling efficiency is low, and vehicles are high in oil consumption when started again after not working for a long time in the prior art are alleviated. The temperature of the coolant is controlled more precisely, and an engine and the gearbox can work in a proper temperature range under various workingconditions.

The invention discloses a smoke waste heat utilization system. The system comprises an air preheater, wherein the air preheater is connected with a high-temperature smoke cooler, the high-temperature smoke cooler is connected with a dust removal device, the dust removal device is connected with a desulfurizing device, a low-temperature smoke cooler is further connected between the dust removal device and the desulfurizing device, a heating medium channel of the high-temperature smoke cooler and a heating medium channel of the low-temperature smoke cooler are both connected with a heat exchange device used for heating air supplied to the air preheater, and the heat exchange device is a heat-pipe type heat exchanger. The system can recover smoke waste heat between the air preheater and the dust removal device, can also recover smoke waste heat between the dust removal device and the desulfurizing device and can transfer recovered heat to the air supplied to the air preheater through the heat exchange device, then the heat is recovered to a thermal system of a boiler, and the utilization efficiency of the smoke waste heat of the boiler is greatly improved.

The invention discloses a battery box and a vehicle with the same. The battery box comprises a box body, a battery module, a cooling orifice plate, an evaporator and an air circulating device, the battery module is arranged in the box body and is separated from the bottom wall of the box body, the cooling orifice plate is arranged between the battery module and the bottom wall and provided with cooling holes towards the bottom face of the battery module, the evaporator is disposed in the box body, the air circulating device is arranged in the box body and used for guiding air in the box body to the evaporator and outputting cold air formed after heat exchange of the evaporator to the cooling orifice plate, and accordingly the cold air is blown to the battery module through the cooling holes. By means of the arrangement of the cooling orifice plate, the evaporator and the air circulating device, the battery box can provide cold air for the battery module in the battery box, the cold air can bring away heat of the battery module, and the work temperature of the battery module can be quickly reduced.

The invention discloses a heat dissipation type transformer. The transformer comprises a transformer housing and a transformer body mounted on the transformer housing; the transformer body comprises acore and a coil, a heat absorbing plate is arranged on the periphery of the coil and the core, and the heat adsorbing plate comprises two sets of panels, a plurality of heat absorbing strips and a plurality of heat absorbing tubes disposed on the inner side surfaces of the two groups of panels; a plurality of protrusions are respectively arranged on the outer side surfaces of the two groups of panels, and each of the protrusions is in contact with the transformer body; heat-conducting pipes are arranged on the upper portions of upper panels of the two groups of panels, the ends of each heat-conducting pipe extend upwardly to from the transformer body and the transformer housing, and are exposed in the external environment, heat dissipation plates are connected to the exposed portions, a plurality of heat-dissipating plates are arranged thereon, and a plurality of heat dissipation ribs wind around each of the heat-dissipating plates; the lower ends of the lower panels located on the two sets of panels are provided with fixing blocks, and the bottoms of each of the fixing blocks are fixed on the transformer body. The transformer has simple structure, and achieves a process of heat absorption, heat conduction and heat dissipation so as to achieve the characteristic of high heat dissipation efficiency.

An air-conditioning system (2, 102)is provided for an automobile comprising an interior air-conditioning module (38, 138), which can be connected in a heat-transporting manner to at least two coolant-carrying cooling circuits of the automobile via valves (32, 52, 132, 152)(e.g., controllable or adjustable valves). A controller (64, 164) is also provided that is configured to control the valves (32, 52, 132, 152)in such a manner that those cooling circuits (4, 6, 104, 106)having the higher coolant temperature can be connected in a heat-transporting manner to the interior air-conditioning module. A method is also provided for operating an air-conditioning system (2, 102).

The invention discloses a heat dissipation type communication pipe, and the heat dissipation type communication pipe comprises a pipe body, a plane structure is formed at the bottom of the pipe body, a plurality of threaded holes are opened in the top of the pipe body and the threaded holes are opened along the length direction of the pipe body, a ventilation device is formed at each threaded hole and the ventilation device comprises a ventilation pipe, the ventilation pipe comprises an outer pipe and an inner pipe, a seal cover is formed at the top of the outer pipe, an interlayer is formed at the middle of the ventilation pipe between the outer pipe and the inner pipe, and the interlayer is used for dividing the space between the outer pipe and the inner pipe into the upper part space and the lower part space, a forced draught fan is formed at the upper part of the inner side of the inner pipe, a contraction section is formed at the top of the inner pipe, a transition section is formed at the top of the contraction section, an air hole is opened at the upper part of the outer pipe. The special ventilation device is formed for discharging the heat in the communication pipe timely, guaranteeing the suitable work temperature for the interior part of the communication pipe and raising the service life for the communication pipe and the interior cables.

The invention relates to an LED (Light Emitting Diode) dot matrix display screen which comprises a radiating base, uniformly arrayed LED illuminating units and an imaging controller, wherein layout circuit conductive layers electrically connected with the LED illuminating units are arranged on one side of the radiating base facing to the LED illuminating units; each of the LED illuminating units is independently in electric connection with the imaging controller through each of the layout circuit conductive layers; the LED dot matrix display screen further comprises a runner shell which is arranged on the other side of the radiating base deviating from the LED illuminating units; a radiating through hole is formed in the central position of each four adjacent LED illuminating units; each of the LED illuminating units is adjacent to the radiating through hole; the radiating through hole passes through the radiating base and the runner shell; an outer runner side wall and an inner runner side wall which is arranged on the periphery of the radiating through hole are arranged between the runner shell and the radiating base; and a circulating cooling runner is formed by the runner shell, the outer runner side wall, the inner runner side wall and the radiating base. The LED dot matrix display screen has the advantage of excellent radiating effect.

The embodiment of the invention provides fuel cell stack thermal management equipment, method and system. The system comprises a fuel cell stack, an energy accumulator, a compressor, an outdoor heat exchanger, an indoor heat exchanger and a radiator assembly, wherein the fuel cell stack and the energy accumulator form an energy accumulator loop through a cooling liquid pipeline; the fuel cell stack and the outdoor heat exchanger form a coupling air conditioning loop through a cooling liquid pipeline; the outdoor heat exchanger, the compressor and the indoor heat exchanger form a vehicle-mounted air conditioner loop through a cooling liquid pipeline; and the fuel cell stack and the radiator assembly form a system heat dissipation loop through a cooling liquid pipeline. According to the embodiment of the invention, the utilization efficiency of waste heat of the fuel cell stack can be improved, and the fuel cell stack can be ensured to be at a proper working temperature.

The invention discloses a lamp with a light source integrated with a radiator and a manufacturing method of the lamp. The lamp comprises a shell component, the radiator and a light source component, the light source component consists of an LED chip, the radiator includes a reflector, a reflector cup is disposed on the reflector, the LED chip is fixedly arranged in the reflector cup, an insulating layer is disposed on the reflector, and a circuit layer is arranged on the insulating layer. The manufacturing method includes steps of arranging the reflector cup on the reflector of the radiator, arranging the insulating layer on the reflector, then arranging the circuit layer on the insulating layer, further placing the LED chip in the reflector cup, connecting the LED chip onto the circuit layer by a bonding wire, and dispensing fluorescent adhesive into the reflector cup. The lamp with the light source integrated with the radiator and the manufacturing method of the lamp have the advantages that a radiating effect of the light source is good, junction temperature of the LED chip is low, the service life of the lamp can be greatly prolonged, and the product reliability and the product quality of the lamp are improved.

The invention discloses an LED (light-emitting diode) dot matrix display screen which comprises a heat-dissipating substrate, LED light-emitting units, an imaging controller and a layout circuit conducting layer, wherein the LED light-emitting units are uniformly arrayed; each LED light-emitting unit is separately electrically connected with the imaging controller through the layout circuit conducting layer; the LED light-emitting units are fixed on the heat-dissipating substrate; the central position of every four adjacent LED light-emitting units is provided with a straight heat-dissipating through hole, each LED light-emitting unit is adjacent to the straight heat-dissipating through hole, and the straight heat-dissipating through hole passes through the heat-dissipating substrate; the LED dot matrix display screen also comprises a display-screen outline border, and the display-screen outline border is provided with an accommodating cavity (the bottom surface thereof is provided with an opening); and a position (facing to each LED light-emitting unit) on the front surface of the display-screen outline border is provided with a through hole for covering the LED light-emitting unit, the through hole is provided with a light-pervious seal plate, a position (close to the upside of the display-screen outline border) on the back face of the display-screen outline border is provided with heat-dissipating holes, and the back face of the display-screen outline border is also convexly provided with a rain cover for preventing rainwater from entering the accommodating cavity. The LED dot matrix display screen has the advantages of good heat dissipation and waterproof properties.

The invention relates to the field of container recycle and discloses a container house with energy-saving and heat preservation functions. The left side face and the right side face of a container body (1) are provided with fixing plates (2). A cooling sunken groove (3) is defined by the fixing plates (2) and the container body (1). The upper portion of the container body (1) is provided with a water pump (4), and the bottom of the container body (1) is provided with a water tank (5) which is provided with an electric heater (51). The water pump (4) is connected with the water tank (5) through a water suction pipeline (6). Mounting plates (22) are fixed to an outer fixing plate (21). Mobile plates (9) are arranged between the mounting plates (22). The outer side faces of the mobile plates (9) are provided with solar power generation panels (91), and the inner side faces of the mobile plates (9) are provided with heat preservation plates (92). The mobile plates (9) are controlled through electric cylinders (93). The container house has the advantages such as good heat preservation performance, can provide a power supply for the container house, is high in power generation efficiency and meanwhile has the functions such as sound insulation and remote control.

The invention provides a lightning-proof heat dissipation transformer, comprising a transformer housing (1), a transformer housing base (111), a transformer main body (2), an iron core (21), a coil (22), a lightning-proof lightning rod (3), a special-shaped heat pipe (4), a heat absorbing plate (5), a heat absorbing pipe (6), a heat conducting pipe (7), a heat dissipation plate (8) and a fixed block (9). According to the scheme of the invention, the lightning-proof lightning rod is arranged on the upper surface of the transformer, the lightning-proof lightning rod can be grounded to protect equipment, and the lightning rod can also be used to prevent lightning in advance; the heat generated by the coil and the iron core during operation is directly led out from the transformer housing forheat dissipation, the phenomenon that the heat is accumulated in the transformer housing can be effectively avoided, the transformer can be guaranteed to always operate at an appropriate temperature,high use safety can be realized, and the service life of the transformer can be prolonged; and the special-shaped heat pipe is added, the operation of heat absorption and heat release is performed bythe driving of a capillary structure and the physical phase change of phase change liquid, and thus higher heat dissipation efficiency and better effect can be achieved.

The invention provides a ship cabin heating system taking fuel cell cooling water as a heat source. The ship cabin heating system comprises a fuel cell cooling loop, a heating pipeline and an external water passage, the fuel cell cooling loop is respectively connected with the external water passage and the heating pipeline; a fuel cell and a second convection heat exchanger are arranged in the fuel cell cooling loop, and after the fuel cell operates, discharged heat dissipation water is conveyed into the second convection heat exchanger and the heating pipeline; external water is conveyed into the second convection heat exchanger through the external water channel, exchanges heat with heat dissipation water and then is discharged into the external environment; and after the heat dissipation water conveyed into the heating pipeline supplies heat to the interior of the cabin, the heat dissipation water and the heat dissipation water subjected to heat exchange in the second convection heat exchanger are gathered into one path to be conveyed into the fuel cell. The system is energy-saving and environment-friendly, the waste heat of the cooling water of the fuel cell which is originally directly discharged is used for heating the ship, high-grade electric energy originally used for heating can be saved, fuel consumption is reduced, and the economy of the fuel cell ship is greatly improved.

The invention discloses an intelligent anti-slip tool box. The intelligent anti-slip tool box is characterized by comprising an anti-slip tool box body, a main monitoring module, multiple independentsubsidiary modules, a temperature module, a power supply control module and a corresponding hardware structure. The main monitoring module is connected with all the independent subsidiary modules through a 485 bus. The intelligent anti-slip tool box is applicable to various station yard environments and particularly applicable to large railway station yards. The main and subsidiary module design is adopted in the intelligent anti-slip tool box, by the adoption of the multiple independent subsidiary modules, the burden of completing system work by adopting the single module is reduced beneficially, moreover, all the modules each perform their duties to complete the corresponding work independently, the risk of overall failure of a system is dispersed, the reliability and the safety of the monitoring system of the intelligent anti-slip tool box are improved, and reliable monitoring over the anti-slip tool box is ensured. The main monitoring module carries out coordinative monitoring workon all the independent subsidiary modules, and the system carries out centralized management over anti-slip tools.

The invention discloses an atomizer. The atomizer comprises a liquid storage shell, an ultrasonic atomizing sheet, liquid guiding cotton, a cooling block and an end cover; the liquid storage shell issurrounded to form an isolated liquid storage cavity and a functional cavity, and the liquid storage cavity is used for storing liquid; the ultrasonic atomizing sheet is assembled in the functional cavity; the liquid guiding cotton is connected with the ultrasonic atomizing sheet and inserted into the liquid storage cavity to guide the liquid in the liquid storage cavity into the ultrasonic atomizing sheet; the cooling block abuts against one side of the ultrasonic atomizing sheet, and the cooling block is provided with an atomization hole and oil return holes; the end cover is connected withone end of the liquid storage shell to cover the liquid storage cavity and the functional cavity; the end cover abuts against and fixes the cooling block, and the end cover is provided with a mist outlet hole; and the liquid is discharged through the atomization hole and the mist outlet hole sequentially after atomization. The ultrasonic atomizing sheet in the atomizer can vibrate efficiently at asuitable temperature, so that the service life of the ultrasonic atomizing sheet is prolonged.

The embodiment of the invention provides a micropump including a housing, an impeller mounted in the housing, a permanent magnet rotor in transmission connection with the impeller and a winding statorwhich is energized to generate magnetic force to drive the permanent magnet rotor to rotate in an oriented manner; a fluid passage for guiding pumped liquid to flow is formed in the housing, the impeller is mounted in the fluid passage, the winding stator is mounted in the exterior of the fluid passage, at least a part of passage wall of the fluid passage is made of a high heat conduction material, and the winding stator is in tight contact with the outer surface of the channel wall, made of the high heat conduction material, of the fluid passage. By means of the embodiment, the winding stator is in tight contact with the outer surface of the channel wall, made of the high heat conduction material, of the fluid passage, when the micropump works, heat generated by the winding stator is transmitted to the pumped liquid through the passage wall, then the heat is carried away along with directional flow of the pumped liquid, and therefore the heat generated by the winding stator is effectively dissipated, and the winding stator can be maintained at the suitable operating temperature.

The invention provides a power distribution box comprising a bottom plate, a top plate, a rear plate, a left side plate, a right side plate, and a front door which form a cubic box body structure. The left side plate, the right side plate, and the front door comprise shutters with downward openings. The power distribution box has characteristics of simple and reasonable power distribution box, decrease in occupied space, reasonable appearance arrangement, easy opening and closing, and convenient and flexible installation and disassembly. The shutters with downward openings enable effective heat dissipation of the power distribution box so as to guarantee appropriate operating temperature.

The invention provides a new energy automobile heat pump air conditioning system which comprises a cooling module, a heat collection module, an indoor heat exchanger, an outdoor heat exchanger and other components. An air heater is arranged in the indoor heat exchanger, the indoor heat exchanger is arranged in an automobile compartment, an air conditioning control panel controls the air heater tooperate, and the air heater is used in cooperation with a temperature sensor. The invention further provides a control method of the new energy automobile heat pump air conditioning system. The air heater is additionally arranged in the heat pump air conditioning system, when the temperature outside a cab is smaller than or equal to a set value, the air heater and a whole heat pump system work atthe same time, the air heater can directly supply heat indoors and can increase the operation temperature of an R134a refrigerating agent, so that the R134a refrigerating agent reaches the proper worktemperature, and the heating mode of the heat pump air conditioning system can be normally started.

The invention relates to the technical field of gearboxes, and discloses a temperature control system capable of raising and lowering the temperature of gearbox oil. The system comprises a gearbox unit, an oil cooler temperature control unit, a gearbox temperature control device and a heat exchanger temperature control unit; the gearbox unit is connected with the heat exchanger temperature controlunit through the gearbox temperature control device to form a temperature raising passage, the gearbox unit is connected with the oil cooler temperature control unit through the gearbox temperature control device to form a temperature lowering passage, the gearbox temperature control device controls the switch-on degree of a temperature control valve in the gearbox temperature control device according to the temperature of the gearbox oil flowing through the gearbox temperature control device, and therefore the flow of the temperature raising passage and the flow of the temperature lowering passage are controlled to raise or lower the temperature of the gearbox oil. The temperature control system capable of raising and lowering the temperature of the gearbox oil integrates the dual functions of temperature raising and cooling so that the gearbox oil can be quickly heated to a suitable temperature during cold starting, when the temperature is too high, temperature raising is stopped, and the gearbox oil enters a cooling circulation process.

The invention discloses a thermostat for controlling a coolant flow path. The thermostat comprises a cavity assembly, a wax bag, a blocking bracket and a main valve block, wherein the cavity assemblydefines an inner cavity and a first inlet and a second inlet are configured to establish fluid communication between the inner cavity and the coolant flow path; the wax pack is disposed in the inner cavity and comprises a push rod fixed to the cavity assembly and a wax pack main body movable relative to the push rod; the blocking bracket is configured to be driven by the wax pack main body for opening and closing of the first inlet; and the main valve block is configured to be driven by the wax pack main body and / or the blocking bracket for opening and closing of the second inlet. The wax packmain body comprises a housing, a rubber tube and a gland, wherein the housing is filled with wax; a cylindrical body of the rubber tube is inserted into the housing; and the gland has a buckle part,and the buckle part is buckled onto the housing to seal the rubber tube between the housing and the gland. The thermostat is easy to manufacture and can achieve precise control.