79results about "Relay ventilation/cooling/heating" patented technology

The invention belongs to the technical field of relays, in particular to an overcurrent protection relay, which includes a base, a movable slot, a protective shell, a side door, a bottom plate, a first link, a second link, a connecting shaft, a fixed cylinder, a slider, a first spring, a connecting rod, a second spring, a connecting block, a fixing block, a fixing plate, a heat dissipation hole, an ash-proof net, a side cover, a ventilation slot, a refrigeration tube, a semiconductor refrigeration sheet, a heat dissipation cavity, a fan, a mounting bracket, a relay body , a micro motor, a gear, a first rack plate, a mounting plate, a second rack plate, a side plate, a movable plate, a fixing rod, a wire incoming slot, a through slot, a pulling rod, a limiting slot, a third spring, a fixingcolumn, a clamping plate, a wire incoming plate and a clamping slot. The fan operates to drive air to enter the ventilation slot from the air inlet hole at one end of the side cover, the air is cooled through the refrigeration tube and the semiconductor refrigeration sheet in the ventilation slot and is then transmitted to the inner part of the protective shell, the relay body in the case of operation is thus cooled, and the service life of the relay is improved.

A system includes first and second relays which physically adjoin one another and are controlled such that one of the relays is off whenever the other relay is on. In operation, heat generated in the first relay thermally conducts to the second relay where the relays physically adjoin one another whereby the second relay functions as a heat sink for the first relay while the second relay is off and the first relay is on. Correspondingly, in operation, heat generated in the second relay thermally conducts to the first relay where the relays physically adjoin one another whereby the first relay functions as a heat sink for the second relay while the first relay is off and the second relay is on.

The invention relates to a method for operating an electrical network, in particular an onboard network of a vehicle, in particular of a hybrid vehicle (HEV), of a plug-in hybrid vehicle (PHEV) or of an electric vehicle (EV). Said network comprises a battery system, which contains a battery separation unit (10), with which a high-voltage battery (12) can be separated from a battery positive pole (18) and / or a battery negative pole (32) or from both battery poles (18, 32) of the on-board network. A main contactor and / or precharging contactor coil (22, 28, 36) of at least one electromagnetic switch (20, 24) is pre-heated. In the case of a pulse-width modulation signal control, the actuation takes place with a fraction (54), preferably 10% to 30%, of an activation pulse width. In the case of actuation by direct current signals, the main contactor and / or precharging contactor coils (22, 28, 36) are preheated according to the temperature in the interior of the electrical energy accumulator with heating gradients (62, 64, 66) chosen according to the temperature.

A relay cooling device includes a container, a liquid coolant that is stored in the container, and a relay that is immersed in the liquid coolant.

The invention discloses an air vent structure of a sealing relay and an air vent sealing method thereof. The air vent structure comprises a casing. A sink portion recessed inwards is arranged on the outer surface of the casing, a protruding column protruding outwards is arranged in the middle of the sink portion, the height size of the protruding column is consistent with the depth size of the sink portion, and an air vent enabling air inside and outside the casing to be communicated is arranged in the middle of the protruding column. When the air vent is sealed, energy of a spot lamp is utilized to enable plastic on the surface of the air vent to be melted together, and a riveting tool is utilized to press downwards to enable plastics of the air vent to be bonded in molding mode. The air vent structure and the air vent sealing method enable the sealing relay to have the advantages of being simple in structure and easy to produce, saving material cost, reducing assembly work time and improving product reliability on the basis of meeting the requirement of national standard for relay sealing.

The invention involves the technical field of electric relay, in particular to an electric relay with thermal structure, the electric relay with thermal structure comprises a first shell and a second shell, wherein an opening is formed on the top of the first shell and matched to install the second shell, the inside of which is matched to install an electric fan, a plurality of fixing plates are mounted on the outside of the second shell, the bottom of the fixing plates are equipped with external thread tubes, the bottom ends of which are inserted with support rods, the bottom ends of the support rods are installed on the upper surface of the first shell, a plurality of chutes are formed on the sides of the support rods which are sleeved with internal thread tubes, one ends of the internal threaded tubes are screwed to external threaded tubes, and ring pieces are arranged below the internal threaded tubes. The electric relay has the advantages of simple structure and convenient use, not only for dissipating the heat inside the relay, thereby prolonging service life of the relay, but also facilitating the disassembly and installation of the second shell and the first shell.

A heat dissipation apparatus, system and method for an air circuit breaker (ACB) switchgear has at least one pair of primary contact toes constructed and arranged to connect to a terminal of the circuit breaker. A bus bar joint is connected to the primary contact toes. The heat dissipation apparatus comprises an evaporator clamped to the primary contact toes. A condenser is located at a higher elevation than the evaporator and at least two electrically isolating pipes fluidly connect the evaporator with the condenser. A dielectric fluid in the evaporator can be heated to a vapour state, with one of the pipes transferring the vapour to the condenser and the second pipe returning the condensed dielectric fluid back to the evaporator for cooling the at least one pair of primary contact toes.

The invention provides an electromagnetic relay deicing system which can suppress energy loss without increasing the on and off times of the electromagnetic relay and can reliably eliminate the icingof the electromagnetic relay without installation of a large-scale device or circuit. The electromagnetic relay deicing system 1 includes an electromagnetic relay 13 that includes a common terminal 13A, a normally open terminal 13B, and a normally closed terminal 13C and that supplies electric power from an electric power supplier 11 to an electrical apparatus 10 when the common terminal 13A and the normally open terminal 13B are connected, and a control circuit 12 that controls an on-state and an off-state of the electromagnetic relay. During the on-state of the electromagnetic relay, the common terminal 13A and the normally open terminal 13C are connected by a movable piece 13D. During the off-state of the electromagnetic relay, the common terminal and the normally closed terminal are connected by the movable piece. The control circuit deices the electromagnetic relay by causing, during the off-state of the electromagnetic relay, electric conduction between the common terminal and the normally closed terminal connected by the movable piece so that ice on a surface of the normally open terminal melts.

A relay with protective cover consists of base plate, shell, shell jacket, control unit set in shell and protective cover pin-jointed on shell jacket. It is featured as arranging multiple wire connection unit being projected on shell jacket at control unit and enabling to pin-turn said protective cover to cover or to expose said wire connection units for protecting personnel from accident of electric shock.

Provided is an electromagnetic relay which can sufficiently dissipate heat generated from a coil to secure desired attracting force even when the electromagnetic relay is miniaturized. The electromagnetic relay includes an electromagnet block and a contact switching mechanism. A movable contact piece of the contact switching mechanism includes a contact attaching portion to which a movable contact is attached, and a first fixed portion attached to a first movable iron piece of the electromagnet block. The first fixed portion is in surface contact with the movable iron piece and is substantially equal in width dimension to the movable iron piece.

A contactless contactor with an auxiliary contact belongs to the field of electrical components. The contactless contactor comprises a housing, a heat radiator, a main circuit board, a main terminal and a control signal terminal. The contactless contactor is characterized in that the housing comprises a main circuit housing and an auxiliary circuit housing which is fixed in front of the main circuit housing; an auxiliary circuit board and an auxiliary terminal are fixed in the auxiliary circuit housing; the main circuit board is provided with a control signal input module and a main circuit module; the control signal input module is connected with the control signal input end of the main circuit module; the auxiliary circuit board is provided with an auxiliary contact module; the driving signal of the auxiliary contact module is from the output end of two random main electronic contacts of the main circuit module, and the auxiliary contact module becomes a real auxiliary contact. The contactless contactor with the auxiliary contact has functions of settling a problem that the auxiliary contact for matching is necessary at an electrical interlock occasion with the contactless contactor, preventing auxiliary contact false triggering which may be caused in a prior-art product in which the auxiliary contact is triggered by a control signal, and ensuring high safety in use.

Provided is an electromagnetic relay which can sufficiently dissipate heat generated from a coil to secure desired attracting force even when the electromagnetic relay is miniaturized. The electromagnetic relay includes an electromagnet block and a contact switching mechanism. A movable contact piece of the contact switching mechanism includes a contact attaching portion to which a movable contact is attached, and a first fixed portion attached to a first movable iron piece of the electromagnet block. The first fixed portion is in surface contact with the movable iron piece and is substantially equal in width dimension to the movable iron piece.

A power relay assembly is provided. A power relay assembly according to an exemplary embodiment of the present invention comprises: an upper case having at least one electric element mounted on one surface thereof; a lower case coupled to the upper case; and at least one bus bar electrically connected to the electric element, disposed between the upper case and the lower case, and including a bottom portion that is in surface contact with at least one of the upper case and the lower case, wherein at least one side of the bottom portion contacts a portion made of a plastic material having heatdissipation and insulation properties in the upper case and the lower case.

The invention relates to a solid-state relay, and in particular to a vehicle solid-state relay which belongs to the technical field of solid-state relays. The vehicle solid-state relay is characterized by comprising a rectangular metal base plate (1), wherein the metal base plate (1) comprises an upper circuit layer, an intermediate insulating layer and a lower metal base plate, and the circuit layer is welded and fixed with pins (2); the vehicle solid-state relay further comprises a heat dissipation shell (3), wherein a rectangular groove is formed on the heat dissipation shell, heat conduction silicone grease is coated in the groove, and the metal base plate (1) is arranged in the groove and in fit fixation with the groove; the heat conduction silicone grease is poured into the groove and the upper part of the metal base plate (1), so that the metal base plate (1) and the heat dissipation shell (3) are in sealed fixation with each other; and heat dissipation plates are fixedly arranged on the heat dissipation shell (3) in a grid manner.

An electronic control device includes a relay including a relay case and an electromagnet and a contact part. The relay case is structured to contain the electromagnet and the contact part. The contact part is structured to be opened and closed by action of the electromagnet. A connector terminal is electrically connected to the relay. A circuit board is structured to mount the relay and the connector terminal thereon. An exterior shell is structured to contain the circuit board such that the connector terminal is exposed outside the exterior shell. A thermal mass element is disposed in a wiring route between the relay and the connector terminal.

The invention relates to the technical field of relay protection covers, in particular to a relay protection dustproof mistaken touch prevention heat dissipation cover, and aims to solve the technical problems that part of existing relay protection covers are difficult to effectively prevent dust, part of existing relay protective covers are inconvenient to disassemble, and part of existing relay protective covers do not have a mistaken touch prevention function. In order to solve the technical problem, the relay protection dustproof mistaken touch prevention heat dissipation cover provided by the invention comprises a base, wherein a relay main body is fixedly connected to the middle position of the top of the base. According to the invention, the relay protection dustproof mistaken touch prevention heat dissipation cover is composed of a heat dissipation and dust prevention mechanism, a mistaken touch prevention mechanism and a mounting mechanism, when the temperature in a protective cover rises, an expansion airbag is heated to expand and ejects a sliding rod upwards, at the moment, a connecting rod abuts against a hinged baffle to deflect, high-temperature gas in the protective cover is exhausted, and when the temperature in the protective cover drops, the expansion airbag shrinks, and the sliding rod drives the baffle to reset so as to seal and prevent dust on the side wall of the protective cover.

The invention discloses an air hole structure on a relay shell. The structure comprises a base hole formed in the relay shell and capable of communicating the inside with the outside of the shell, anda plug capable of shielding the outer end part of the base hole is assembled in the base hole on the relay shell. The plug is matched with the base hole, so that an air hole of which the air passageis of a non-straight passage structure is formed in the relay shell. Pollutants can be effectively prevented from directly intruding into the relay shell through the air holes, the air channel is notprone to being blocked, and the relay shell can be manufactured and formed in a simple, easy and economical mode.

The invention discloses a kovar alloy relay shell with high protection performance. The kovar alloy relay shell comprises a relay shell body, a relay body, a radiator and a motor, wherein springs arearranged on the inner bottom wall of the relay shell body, a gasket is fixed at the top of a limiting plate, a heat conduction pipe is arranged on the outer wall of the relay body, and the radiator isarranged in the relay shell body. According to the kovar alloy relay shell with the high protection performance, the springs and the gasket are arranged; through the arranged gasket, friction force between the limiting plate and the relay body is increased, and the protection effect on the relay body is improved; and as the springs are arranged, one spring impacted firstly, then the spring is deformed through pressure, and the spring on the other side of the relay body is pushed to deform to buffer the received pressure, so the impact force borne by the relay body is reduced, the safety of the relay body is guaranteed, and internal parts of the relay body are prevented from being damaged.

The invention discloses a radiating device for a high-power relay. A box body is internally provided with a heat conduction mounting seat; the back of the heat conduction mounting seat is provided with a disc-shaped pipeline which is connected with a cooling pump; the cooling pump is connected with a liquid storage tank used for storing cooling liquid; the box body is internally provided with a temperature sensor which is connected with a controller; an output end of the controller is connected with a driver; and the driver is connected with the cooling pump. The cooling device has the characteristics of being small in volume, light in weight and good in cooling effect.

The invention discloses a relay with a strong heat dissipation effect, and the relay comprises a base, a limiting mechanism is arranged at the top of the base, a clamping mechanism is arranged at the top of the limiting mechanism, an oil cooling mechanism is at one end of the base, a relay is arranged in the middle of the limiting mechanism, a storage mechanism is arranged at the end, away from the oil cooling mechanism, of the base, and an air cooling mechanism is arranged in the relay, a heat dissipation frame is disposed at the top of the base, the relay comprises an inner cavity, the air cooling mechanism comprises a motor, the motor is fixedly connected into the inner cavity, the output end of the motor is fixedly connected with a rotating disc, one end of the rotating disc is movably connected with a movable shaft through a center shaft, and the end, away from the rotating disc, of the movable shaft is movably connected with a movable block. The relay with a strong heat dissipation effect has the advantages that: a first handle of the limiting mechanism is rotated to drive a sliding block to move, so that a second sliding rail fixedly connected to the top of the sliding block moves to clamp the two ends of the relay, a second handle of the clamping mechanism is rotated to drive the clamping block to move to clamp the other two ends of the relay, and disassembly and assembly of the relay are facilitated.

The invention relates to the technical field of relays, and discloses a self-protection relay based on intelligent manufacturing, which comprises a shell, heat dissipation rings are uniformly arrangedon the left wall of the shell, soft rings are fixedly connected to the inner cavities of the heat dissipation rings, and ring grooves are formed in the heat dissipation rings. A pull rod inserted into an inner cavity of the annular groove is fixedly connected to the soft ring, a guide ring is slidably connected to the inner cavity of the annular groove, and a heat absorption cylinder is fixedly connected to the lower portion of the inner cavity of the annular groove. According to the self-protection relay based on intelligent manufacturing, by arranging the baffle corresponding to the heat dissipation ring, when the device body is in a dormant state, the baffle can automatically shield the heat dissipation ring under the action of the extrusion spring, and when heat in the shell cannot beeffectively dissipated, the soft ring in the inner cavity of the heat dissipation ring is driven to automatically contract, and the inner diameter of the heat dissipation channel is increased, so that self-protection is effectively carried out in a dormant state, and the heat dissipation effect of the device body is effectively improved.

The invention relates to the technical field of heat dissipation type relays with a breathing function, and discloses a heat dissipation type relay with a breathing function. The relay comprises a protection box with an opening in one side and a relay body fixedly mounted at the bottom of the inner wall of the protection box, a filter unit is arranged at the opening of the protection box, and a cooling unit is arranged in the protection box. When the cooling unit reduces the temperature of the relay body, moisture in air is prevented from entering the protection box through the filtering unit, heat in the protection box is absorbed through a U-shaped evaporation pipe, the maximum average current on the relay body is maintained, and meanwhile the temperature is too high so that insulation aging of the relay body and fusing deformation of a coil shell can be caused. Water in the air is contained in a high-water-absorption polymer bag, damage of water molecules to an internal circuit of the relay body is avoided, after the high-water-absorption polymer bag absorbs water and expands, the high-water-absorption polymer bag can be lifted out of a fixing frame by pulling up a sealing cover, and operation of maintenance personnel is facilitated.

The invention belongs to the technical field of relay heat dissipation and discloses a solid-state relay. The solid-state relay comprises a heat conduction plate, a mounting plate, a heat conduction copper ring, a limiting ring A and a limiting ring B; a solid-state relay is fixedly installed at the bottom of the heat conduction plate; a heat conduction seam is formed in the middle of the top end of the solid-state relay; transparent pipes are symmetrically and fixedly installed on the left side and the right side of the bottom of the solid-state relay; inner cavities of the two transparent pipes are communicated with an inner cavity of the heat conduction seam; fixing screws are in threaded connection with the bottoms of the two transparent pipes; and rubber plugs are fixedly bonded to the tops of the two sets of fixing screws. In an actual use process, fan blades A and fan blades B blow air to heat dissipation fins A and heat dissipation fins B through rotation correspondingly, so that the air flow speed in the solid-state relay is increased, heat on the heat conduction copper pipe, the heat dissipation plate A, the heat dissipation plate B, the heat dissipation fins A and the heat dissipation fins B can be dissipated more quickly, and therefore, the heat dissipation speed of the solid-state relay is further increased.

The invention discloses a low-thermal-resistance low-cost automobile solid-state relay, which comprises a circuit board with electrical connection terminals and a heat dissipation casing with a cavity, wherein the circuit board is hermetically mounted in the cavity of the heat dissipation casing and is composed of an upper circuit layer, a middle insulating layer and a lower circuit layer; a plurality of heat-conduction through holes are formed in the middle insulating layer. The low-thermal-resistance low-cost automobile solid-state relay disclosed by the invention has the advantages that the heat dissipation effect is improved, and the material cost is relatively low.

The invention relates to a plug-in solid-state relay, which is applied to the field of electronic components and comprises a base, a wiring terminal, a terminal table, a metal concave hole, a terminaltop cover and a metal protrusion, wherein the wiring terminal and the terminal table are arranged on the base, the metal concave hole is formed in the terminal table, the metal protrusion is connected with the terminal top cover and inserted into the metal concave hole, a through hole is formed in the metal protrusion, and an elastic protruding block inserted into the metal concave hole is arranged on the inner wall of the metal concave hole. The plug-in solid-state relay has the effect of improving the connection stability of the relay.

The invention provides a relay protection system and method. The system comprises a relay, a resistance sampling circuit and a control unit, wherein the resistance sampling circuit is connected with the relay and is used for acquiring a first resistance value of a corresponding coil when the relay is switched off and a second resistance value of the corresponding coil when the relay is switched on; the control unit is connected with the resistance sampling circuit, and is used for receiving the first resistance value and the second resistance value sent by the resistance sampling circuit, calculating the actual working temperature of the coil according to the first resistance value, the second resistance value and the current environment temperature of the relay during working, and realizing the protection of the relay according to the actual working temperature. In the system, the current actual working temperature of the relay coil is judged by detecting the resistance change of therelay coil, so that when the actual working temperature reaches an alarm, corresponding cooling treatment can be carried out in time, the relay is effectively protected, and the possibility that the relay is damaged due to the fact that the working temperature is too high is prevented.