31results about How to "Will not cause a short circuit" patented technology

Disclosed in the invention is a waterproof distribution box comprising a box body including a lower ventilation box body and an upper sealing box body. A ventilation box door and a sealing box door are respectively arranged at opening sides of the lower ventilation box body and the upper sealing box body. The sealing box door includes an inner side door and an outer side glass door. First sealing strips are arranged between the inner side door, the outer side glass door and the door frame of the upper sealing box body. A water blocking structure is arranged at the top of the upper sealing box body and contains a water blocking body; at least one horizontal drainage slot is formed in the water blocking body; and a first water blocking plate and a second water blocking plate are arranged at the front end and the rear end of the water blocking body obliquely. Besides, an air inlet fan and an exhaust fan are respectively arranged at the left side wall and the right side wall of the lower ventilation box body. According to the waterproof distribution box, the rainproof and waterproof performances are good; the insulation strength inside the distribution box can be maintained and the short-circuit phenomenon in the distribution box is prevented; the safety factor is high; and the service life of the box is prolonged.

The invention discloses a composite of hierarchical structure glass fiber and lithium metal and a preparation method thereof, and relates to the technical field of negative electrodes of batteries. Covered in the lithium layer, the top is exposed on the outside of the lithium layer, the middle and lower surfaces of the glass fiber are provided with a conductive layer, and the upper end is exposed. The conductive layer has lithium affinity and electronic conductivity, and the exposed top of the glass fiber layer has no electrons or ionic conductivity. The deposited lithium ions can only obtain electrons on the glass fiber with a modified layer on the surface of the composite electrode, and cannot obtain electrons at the top of the glass fiber, so as not to form lithium dendrites and dead lithium exceeding the thickness of the surface glass fiber, making the electrode overall The thickness is controllable and the battery safety is high. The top surface of the glass fiber is electronically insulated, and will not cause a short circuit in the battery after the separator is attached to the battery. The metal lithium in the lower half of the glass fiber is responsible for supplementing the lithium source, and the battery cycle performance is guaranteed.

The invention relates to a method for treating cyanogen-containing copper-containing electroplating wastewater by electrolysis and recycling copper. Compared with the existing method for treating cyanogen-containing copper-containing electroplating wastewater, the method disclosed by the invention has the advantages of being simple in process, free of secondary pollution, high in removal rate, capable of recycling deposited metal copper and recycling effluent. The method for treating cyanogen-containing copper-containing electroplating wastewater by electrolysis comprises the following steps: adding sodium hydroxide in the cyanogen-containing copper-containing electroplating wastewater to regulate concentration of OH<-> in wastewater, filtering to obtain copper hydroxide copper precipitate and filtrate; adding a certain amount of mesoporous granulate active carbon and NaCl by taking the filtrate as electrolyte; applying direct-current power for electrolysis, externally applying electrostatic fields between positive and negative electrodes, wherein electric field direction is from the positive electrode to the negative electrode; recycling the separated-out copper after separating out copper from the negative electrode; ending electrolysis when residual quantity of Cu<2+> and CN<-> in electrolyte is respectively less than 0.5mg / L and 0.1mg / L, and treating the granulate active carbon by hydrochloric acid and then recycling after separating the precipitate.

The invention discloses a guardrail for animal and plant protection, which comprises a horizontal fence and a column. An installation groove is opened in the column, and an insulating box and two ring-shaped electrical contacts are arranged on the inner bottom wall of the installation groove. There are two conductive joints sealed on the box, and the upper part of the insulating box is connected with a limit cylinder. The side wall of the limit cylinder is sealed with a high-pressure water pipe and a water spray pipe. The inside of the limit cylinder is sealed and slid. A movable part, and a through hole is opened on the movable part, and a magnetic conductive column is movably arranged on each of the ring contacts. Through the cooperation between the various components, the present invention can apply a microcurrent to tourists and spray high-pressure water flow to them when they climb over the guardrail, so as to prevent tourists from climbing over. In addition, tourists who approach unconsciously or put their arms on the guardrail naturally , the device will not conduct the circuit, nor will it spray water, and tourists can enjoy the scenery at close range.

An electric tool (1) is provided, particularly an electric circular saw which comprises a tool (2) with a tool axis (X), a tool housing (3) for the store and the support of the tool (2) rotating around the tool axis (X), a motor (4) with a shaft (5) for defining a longitudinal axis (Y), a gearing device (6) for connecting the shaft (5) with the tool (2), and at least one handle (7,37) for supporting the electric tool (1) and provided thereon with a power switch (8) eclectically connected with the motor (4). The motor (4), the handle (7, 37) and the power switch (8) are firmly interconnected toform an unit body (9) that facilities the electric tool to be positioned in a comfortable operating position. The unit body (9) is connected on tool housing (3) and rotates around the longitudinal axis (Y) relative to the tool housing (3) or pivots around the tool axis (X) in parallel to the longitudinal axis (Y).

The invention discloses a composite evaporative cooling device with a natural cooling function for large-scale equipment. The composite evaporative cooling device comprises a refrigeration compressor (1), a condenser (2), a dry filter (3), a refrigerant liquid pipeline electromagnetic valve (4), an expansion valve (5), a gas-liquid separation recooler (7), a refrigerant circulating pump (8) and a three-way adjusting valve (12), wherein the gas-liquid recooler (7) is communicated with the refrigeration compressor (1) and the condenser (2) as well as external natural cold sources. By adopting Freon as liquid refrigerant, the state of the refrigerant is changed by steam compressing and refrigerating circulation or natural cooling circulation, work efficiency of a refrigerating device is improved, energy is saved, consumption is reduced, and operation range of natural cooling and refrigerating is expanded. The composite evaporative cooling device is simple in structure and convenient to use, safety of the large-scale equipment is improved and electricity consumption can be saved by more than 20%.

A multifunctional waterproof ceiling fan, comprising a hanging cup (1), a motor component (3), blades (5), a junction box (6), and a light component (7) provided in a downward sequence, and provided, at the position where the fan is connected, an upper hanging cup outer waterproof rubber ring, an upper hanging cup inner waterproof rubber ring (16), a motor waterproof rubber ring (33), a decorative golden edge (311), a rubber ring, and a light plate waterproof rubber ring (74), thus allowing the entire ceiling fan to adapt to a high humidity environment.

An abrasive band machine is composed of abrasive band and its casing, motor and its casing, handle connected to motor casing to become a unit, drive gear, driven gear, driver unit linking motor to drive gear and connector for connecting said unit to abrasive band casing in order to relax the fatigue of operator.

The invention belongs to the field of carbon photon therapy devices, and provides a short-circuit protection mechanism of a carbon photon therapy device. The short-circuit protection mechanism comprises: a fixing assembly; a combustion basin, the lower end of which is fixedly connected with the upper end of the fixing assembly, and the carbon rod can be energized and burned in the combustion basin; a support rotary assembly, that low end of which is arranged in the fix assembly, is capable of supporting and driving the carbon rod to move; a pressing assembly having a lower end disposed in thestationary assembly and an upper end extending into the combustion basin, the pressing assembly being positioned above the supporting rotary assembly and capable of pressing the carbon rod on the supporting rotary assembly; a short-circuit protection assembly arranged on the fixed assembly, one end of the short-circuit protection assembly is connected with the pressing assembly and the other end of the short-circuit protection assembly is electrically connected with the supporting rotating assembly. Compared with the prior art, the present invention has the advantages that when one of the carbon rods is burned, the support rotating assembly stops rotating and the other carbon rod is prevented from continuing to move, and the unburned carbon rod does not cause a short circuit of the carbonphoton therapeutic apparatus.

The invention discloses a circuit, a circuit protection method and electronic equipment, belonging to the technical field of circuits. The circuit includes a battery module, a switch module and a system circuit module; the system circuit module includes at least one control module; the input end of the switch module is connected to the battery module; the output end of the switch module is connected to the system circuit module; the control end of the switch module is connected to the The control modules are connected, and the switch module is used to receive the control signal of the control module during the circuit test and / or assembly process, and switch to the off state according to the control signal. The invention solves the problem that the electronic device without a physical switch is damaged due to a short circuit during the assembly process, achieves the effect of power failure during the assembly process, avoids short circuit caused by live assembly, and protects the electronic device.

A clamp for making a graphene suspension film into a capacitor, the present invention relates to a clamp for making a graphene suspension film into a capacitor, in order to solve the problem that the distance between the two pole plates of the existing capacitor cannot be as small as possible, which will affect the capacitance of the made capacitor. The size of the capacitance; the contact resistance of the graphene suspension film and the lead wire will affect the output of the charge when the capacitance changes; the thickness of the lead wire will increase the distance between the two pole plates of the capacitor, and the problem that the two pole plates cannot be guaranteed to be parallel, the upper end cap and the lower end cap Fixed installation, the negative plate is installed in the lower end cover, the silicon wafer attached with the graphene suspension film is installed in the first groove of the lower end cover, and the graphene suspension film side faces the bottom surface of the first groove, and the sheet is installed in the graphite Between the graphene suspension film and the bottom surface of the first groove, the positive lead wire is connected to the graphene suspension film, and a flexible material is installed between the silicon wafer and the upper end cap. This fixture is used when the graphene suspension film is made into a capacitor positive plate Fixing it belongs to the field of fixtures.