75results about How to "Avoid arcing" patented technology

The utility model discloses a capacitor protection assembly and a capacitor, and relates to the technical field of capacitors, and the capacitor protection assembly comprises a housing, a cover body, a support, and a conductive assembly. The shell is provided with a containing cavity for containing the capacitor assembly. The cover body is arranged at the opening of the containing cavity in a covering mode. The support is installed on the cover body, and at least part of the support is located in the containing cavity. The conductive assembly comprises a first conductive part and a second conductive part which are connected, the first conductive part is directly or indirectly connected with the cover body, and the second conductive part is installed on the support. The support is provided with an electric fence, the electric fence is arranged on the peripheral side of the second conductive part, when the capacitor assembly breaks down, the cover body expands in the direction away from the support, and the first conductive part and the second conductive part are disconnected. According to the capacitor protection assembly, the capacitor protection capability can be improved, and the fault probability of the capacitor is reduced.

The utility model provides a battery pack and electric equipment, and relates to the technical field of batteries. The battery pack comprises a box body and a power distribution box, the box body is provided with a first containing cavity, the first containing cavity is used for containing a battery cell, the power distribution box comprises a shell and a power distribution device, the shell is located outside the box body, the shell is fixedly connected with the outer wall face of the box body, a second containing cavity is formed in the shell, or the shell and the outer wall face of the box body define the second containing cavity, and the power distribution device is arranged in the second containing cavity. And the power distribution device is accommodated in the second accommodating cavity. According to the battery pack and the electric equipment, the battery cell and the distribution box are separated in two spaces by enabling the battery pack and the electric equipment to meet the structure, so that combustible gas can be prevented from diffusing into the distribution box when the battery cell is subjected to thermal runaway, arc discharge and short circuit of the distribution box are avoided, and the overall safety performance of the battery pack is improved.

The utility model discloses a transformer neutral point grounding protection device with load opening and closing capacity, a static contact is connected with a wire inlet electrode of a vacuum arc extinguishing device, a wire outlet electrode of the vacuum arc extinguishing device is connected with one end of an auxiliary static contact rod, and the other end of the auxiliary static contact rod is connected or disconnected with a grounding arm moving contact; the lower end of the grounding arm is connected with a main operating rod through a reversing mechanism; the main operating rod is connected with an operating mechanism; and a power input shaft of the vacuum arc-extinguishing device is connected with the insulating operating rod. The utility model has the advantages that in the process of operating the disconnecting switch, after the moving contact and the static contact of the disconnecting switch are separated and before the moving contact and the static contact are closed, the rapid extinguishing of electric arc of a conductive loop is completed by the auxiliary contact system and the vacuum arc extinguisher, and then the moving contact and the static contact of the disconnecting switch are separated and closed in an arc-free and current-free manner. The whole operation process is ensured to be carried out in an arc-free state, so that the occurrence of electric arc and high-frequency resonance phenomena in the operation process is effectively avoided, and the safe operation of a main transformer, a power transmission network and switch equipment is protected.

The invention relates to the technical field of circuit breakers, in particular to a circuit breaker for electric power engineering, which comprises a shell, a first elastic conducting strip, a second elastic conducting strip and the like, a fixing structure is arranged on the lower portion of the shell, and a disconnecting structure is arranged in the shell. A first elastic conducting strip is connected in the shell; the first elastic conducting strip is fixedly connected with a second elastic conducting strip, and the first elastic conducting strip is connected with a disconnection structure in the shell. When a power line or equipment breaks down, a shifting ring rotates clockwise, a pull rope pulls a movable cylinder, a pressing rod, a limiting frame and a first elastic conducting strip to move rightwards, meanwhile, the limiting frame moves away from the upper portion of a push plate, and under the action of a spring in a compressed state, the push plate moves upwards to push an input wire and push the input wire out of a shell; and remote from the first elastic conductive sheet and the second elastic conductive sheet, electric arcs are prevented from being generated between the input wire and the first elastic conductive sheet and the second elastic conductive sheet in high-current applications.

The invention relates to the technical field of circuit breakers, in particular to a capacitor electricity taking type deep fusion pole-mounted circuit breaker. The invention relates to a capacitor power-taking type deep fusion pole-mounted circuit breaker, which comprises a plurality of power-off mechanisms. Each power-off mechanism comprises an outer layer cover, a fixed terminal, a movable terminal and an adjusting assembly. The adjusting assembly comprises an upper current-conducting plate, a lower current-conducting plate and two adjusting units. Each adjusting unit comprises a contact box. When the moving terminal collides with the lower conductive plate, bounce in the vertical direction can be generated, the elasticity of the contact box is matched with the movement of the moving terminal, so that the lower conductive plate and the moving terminal can be always contacted, the relative movement between the moving terminal and the lower conductive plate is reduced, and the number of times of arc erosion on the moving terminal is reduced. The invention provides a capacitor electricity taking type deep fusion pole-mounted circuit breaker, and aims to solve the problem that a movable contact and a fixed contact are damaged due to the fact that a large amount of electric arcs are generated when the movable contact and the fixed contact of an existing circuit breaker are in contact.

A relay includes a contact cavity, a contact assembly, a breaking assembly, and a retaining member. The contact cavity includes a yoke plate. The contact assembly includes a stationary contact and a movable member, the movable member including a movable contact and a push rod member, the movable contact mounted on the push rod member, the push rod member movable relative to the yoke plate to move the movable contact to contact or separate from the stationary contact, the movable contact and the stationary contact being capable of forming at least one conduction path when the movable contact contacts the stationary contact. The breaking assembly includes an impactor, the breaking assembly configured to release the impactor in response to an activation signal to impact the movable member to break at least one of the at least one conduction path. The retaining member is connected to one of the yoke plate and the push rod member, the retaining member configured to cooperate with the other of the yoke plate and the push rod member to retain the push rod member at a predetermined position when the breaking assembly breaks at least one of the at least one conduction path.

The utility model relates to the technical field of charging guns, and particularly discloses a waterproof, anti-heating, anti-electric shock and anti-arc structure of a conversion head, which comprises a CCS1 gun head and an NACS interface connected with the CCS1 gun head, a first copper contact pin, a first signal pin and a PCBA circuit board are arranged in the CCS1 gun head, a first button and a second button are arranged on the NACS interface, and a second copper contact pin is arranged on the first button. The inner side of the first button and the inner side of the second button are each provided with a microswitch electrically connected with the PCBA circuit board, a copper bar, a second copper pin and a second signal pin are arranged in the NACS interface, and a waterproof sealing strip is arranged between the CCS1 gun head and the NACS interface. According to the utility model, the first copper pin and the second copper pin are both connected with the copper bar in a pressure riveting manner, the first button and the second button are internally provided with the microswitches, power is cut off before the gun is pulled out, electric arc generation is avoided, the electric arc prevention function is realized, and the electric shock prevention function is realized by arranging the safety door structure at the output end of the CCS1 gun head. The waterproof sealing performance is improved by arranging the waterproof sealing strip, and the waterproof grade is improved.

According to the battery cell module provided by the invention, when electric energy needs to be released or used, the electric energy is transmitted to the total positive output piece and the total negative output piece through the tabs of the battery cells. And the total positive output piece and the total negative output piece are isolated from the battery cell group through the insulating piece, so that safe transmission of electric energy is ensured, and electric breakdown and electric arcs are avoided. And the total positive output piece and the total negative output piece concentrate the electric energy and transmit the electric energy to a circuit or equipment outside the battery module. The insulating parts are introduced between the battery cell group and the total positive output part and between the battery cell group and the total negative output part, so that electric breakdown and electric arc are effectively avoided, and the safety of the whole battery module is greatly enhanced. Battery damage caused by electric breakdown and electric arc is reduced, and the service life of the battery is prolonged.

The utility model discloses an all-insulation ring main unit with a better interlocking function. The all-insulation ring main unit comprises a cabinet body, a circuit breaker, an isolating switch, a first vertical interlocking plate, a second vertical interlocking plate and a swing arm, the circuit breaking main shaft rotates from an opening position to a closing position in a clockwise direction, and the isolation main shaft rotates from the opening position to the closing position in an anticlockwise direction; the first vertical interlocking plate and the second vertical interlocking plate are installed on a panel of the cabinet body and can slide up and down on the panel. The circuit breaking main shaft is fixedly connected with a first crank arm, and the isolation main shaft is fixedly connected with a second crank arm. The upper end of the first vertical interlocking plate is in contact fit with the trigger end of the first crank arm, the fixed end of the swing arm is hinged to the lower end of the first vertical interlocking plate, and the swing end of the swing arm is located between the isolation operation hole and the isolation main shaft; the lower end of the second vertical interlocking plate is in contact fit with the trigger end of the second crank arm, and the upper end of the second vertical interlocking plate is in contact fit with the closing button.

The improved ABS wheel speed sensor terminal crimping fixed-length cutting equipment comprises a bottom plate, an electric cabinet and a vertical plate, the electric cabinet is fixed to the bottom plate, the vertical plate is fixed to the left side of the upper end face of the bottom plate, a first air cylinder is fixed to the vertical plate, and a movable frame is fixed to the output end of the first air cylinder; a pressing plate with the end of an inclined structure is fixed to the right side of the movable frame. According to the improved ABS wheel speed sensor terminal crimping fixed-length cutting equipment, the automatic butt joint mechanism is adopted and matched with the separation guide mechanism, the automatic matching effect of a wire core and a terminal can be achieved, manual butt joint is not needed, the operation is more convenient and simpler, a linkage limiting mechanism is matched, positioning of a connecting wire can be achieved, the wire core is prevented from moving in the butt joint process, and the production efficiency is improved. And after butt joint is completed, acting force can be provided for the connecting wire through the limiting mechanism, and pulling force can be generated for the wiring terminal and the wire core through resetting of the butt joint mechanism, so that the detection effect is realized, and the stability of the wiring terminal and the wire core after crimping is determined.

The invention discloses a quick operation auxiliary device for an isolating switch, and the device comprises a connector which is detachably connected with an insulating operating rod; one end of the sliding rod is detachably connected with the connector; the limiting block is fixedly connected with the other end of the sliding rod; the outer surface of the sliding rod is sleeved with the sliding block, and the sliding block is in sliding connection with the sliding rod; the sliding block slides on the sliding rod and respectively collides with the connector and the limiting block, so that the connector drives the insulating operating rod to open and close the disconnecting switch. The invention further relates to a matching assembly of the isolating switch rapid operation auxiliary device and a switching-on and switching-off method of the isolating switch rapid operation auxiliary device. According to the rapid operation auxiliary device for the disconnecting switch, the sliding block slides on the sliding rod to collide with the connector and the limiting block, the force generated by collision of the sliding block, the connector and the limiting block is used for assisting the insulating operation rod to complete disconnecting switch opening and closing operation, the arc discharge phenomenon is avoided, and the rapid operation auxiliary device belongs to the technical field of power transmission and distribution work.

The utility model provides a kind of hanging air purifier, relate to air purifier technical field.A kind of hanging air purifier, comprising: shell, air inlet and air outlet are provided on shell;Support frame, support frame is set in shell, and first accommodating space is provided in support frame;Filter element, filter element is set in first accommodating space;Plasma generating device, plasma generating device is set in first accommodating space, and filter element is set between plasma generating device and air inlet;Wherein, plasma generating device includes first frame and multiple plasma generating modules set in first frame.By being provided with plasma generating device in hanging air purifier, air is further treated by sterilization, deodorization etc. after passing through physical filtration, improve purification efficiency, and plasma generating device uses modular design to use multiple plasma generating modules, facilitate flexible configuration.

The invention relates to the technical field of dust removal, in particular to a high-hardness and washable electrostatic dust removal electrode and a preparation method and application thereof. The electrostatic dust collection electrode comprises an electrode body and a coating arranged on the surface of the electrode body, the preparation raw materials of the coating comprise a photocureable coating and an inorganic filler; the inorganic filler comprises at least one of silicon dioxide and zirconium dioxide. The surface of the electrostatic dust collection electrode is provided with the coating jointly formed by the photocureable coating and the inorganic filler, the problem of surface arcing of the electrostatic dust collection high-voltage electrode is solved, the coating has excellent surface hardness and wear resistance, the hardness and wear resistance of the coating are improved, and after the electrostatic dust collection electrode is washed for multiple times, the electrostatic dust collection electrode is not prone to falling off. And the good purification efficiency is still kept.

This utility model relates to the field of power supply technology, specifically to a synchronous rectification and commutation power supply. It includes a housing, inside which a battery is fixedly installed, with two electrode plates connected to the battery. It also includes a lap plate fixedly installed inside the housing and positioned inside the electrode plates. Furthermore, it includes an adjusting component movably connected to the housing, capable of moving up and down within the housing. Two frames are fixedly installed on the adjusting component, with metal plates movably connected inside the frames. Additionally, it includes two metal sheets laid on the inner wall of the housing, and two lap plates also disposed on the inner wall. Through the adjusting component and metal plates, a simple and rapid commutation operation can be achieved under the drive of a hydraulic cylinder. Furthermore, by using through slots and magnetic switches on the lap plates, and employing methods such as increased creepage clearance and power-off, arcing during commutation is avoided, improving the safety of the power supply.

The present disclosure provides a conductive tab positioning assembly and a clamp device. The conductive tab positioning assembly is used in combination with a battery module having a conductive tab with a weld point. The conductive tab positioning assembly includes a fixing member and a positioning member. The fixing member is fixed to the battery module. The positioning member is connected to the fixing member and extends to a side where the conductive tab is located and exerts a force on the conductive tab to position the conductive tab on the battery module, wherein the positioning member and the conductive tab are in contact while maintaining insulation. The clamp device includes the conductive tab positioning assembly. The fixing member and the positioning member in the present disclosure can fix the conductive tab on the battery module to avoid the conductive tab from moving and contacting other electrode posts to generate an electric arc or short circuit when milling the weld point. Thus, the accident rate of weld point milling is reduced and the efficiency of weld point milling is improved.

This invention discloses a high-voltage insulation short-circuit device, belonging to the field of high-voltage discharge technology. The high-voltage insulation short-circuit device includes an insulating sleeve and grippers, and further includes: an electrical connection mechanism comprising a sliding sleeve, a first conductive post, and a conductive piston. The first conductive post is located at one end within the sliding sleeve, and the conductive piston is electrically connected to a ground wire. The inner cavity of the sliding sleeve between the conductive piston and the first conductive post is a vacuum-sealed cavity. One end of a second conductive post abuts against a terminal post, and the other end of the second conductive post can abut against the first conductive post. A locking mechanism is used to lock the position of the conductive piston. When the first conductive post contacts the second conductive post, the locking mechanism releases the locking of the conductive piston, and the conductive piston moves towards the side closer to the first conductive post until it abuts against the first conductive post. The high-voltage insulation short-circuit device of this invention can prevent the generation of an electric arc around the terminal post, thereby preventing the high temperature generated by the arc discharge from melting the terminal post or the short-circuit device.

The present invention discloses a static VAR generator with hot-swap and plug-and-play functions and a method for using the same, comprising a cabinet, a host computer installed on the cabinet, and a plurality of SVG modules installed in the cabinet, wherein a plurality of partition assemblies for installing the SVG modules are arranged in the cabinet, a vertically arranged NABC four-phase vertical busbar is insulated and installed on the rear side of the partition assembly in the cabinet, a NABC four-phase static contact that can match the NABC four-phase vertical busbar is installed on the rear side wall of each SVG module, a cabinet electric control lock is installed on the left side wall of each SVG module, and a lock assembly used in conjunction with the cabinet electric control lock is installed in the cabinet. The present invention can realize plug-and-play and hot-swap of SVG modules.

A connector for an electric vehicle power supply equipment or system includes a housing, a first electrical coupling member, a second electrical coupling member, and a conductive barrier. The first electrical coupling member is supported by the housing and configured to mate with an inlet of the electric vehicle, and the first electrical coupling member includes a first pin portion. The second electrical coupling member is supported by the housing and configured to mate with the inlet, and the second electrical coupling member includes a second pin portion. The conductive barrier is supported by the housing and extends between the first and second pin portions. The conductive barrier is configured to interact with at least one of the first and second pin portions to provide a conductive path for power, and the conductive path can be monitored to assess the electrical isolation of the first and second electrical coupling members and avoid arcing or shorting.

The invention relates to the technical field of film capacitors, in particular to a metalized electrode structure of a film capacitor, which comprises a dielectric film and a metalized layer arranged on the surface of the dielectric film, the metalized layer comprises a grid area, an edge thickening area and a connecting bridge, the edge thickening area is arranged on the edge of the dielectric film, and the connecting bridge is arranged on the edge thickening area. The grid area comprises an inner-ring grid and an outer-ring grid, the aperture of the inner-ring grid is D1, the aperture of the outer-ring grid is D2, D1 and D2 meet the following relation: D1 is less than D2, the grid area is composed of a plurality of staggered metal strips, the inner-ring grid and the outer-ring grid are connected through a connecting bridge, the edge thickening area is connected with the outer-ring grid through the connecting bridge, the width of each metal strip is 0.1-1mm, and the width of each metal strip is 0.1-1mm. The hole diameter of the grid area ranges from 0.5 mm to 5 mm, the metalized layer is made of aluminum-zinc alloy materials, the thickness of the metalized layer ranges from 20 nm to 100 nm, and the width of the edge thickening area ranges from 2 mm to 5 mm. The technical problems that an existing thin film capacitor is poor in voltage endurance capability, heat dissipation performance and mechanical stability and large in preparation difficulty are solved.

This invention relates to the field of livestock and poultry manure treatment technology, providing a resource-based treatment method, system, and biochar for the thermal treatment of livestock and poultry manure. The treatment method includes: solid-liquid separation of livestock and poultry manure raw materials to obtain a solid phase material; adding a conductive regulating component to the solid phase material and mixing it evenly to obtain a conductive mixture; molding the conductive mixture to obtain a molded body to construct an internally stable solid resistance network; placing the molded body in a flash Joule heating reaction chamber, and applying a pulsed current to the molded body through electrodes under an inert atmosphere, utilizing the resistive Joule heating effect of the molded body to raise its temperature to above 800°C, completing the instantaneous heat treatment; cooling and collecting the solid product after instantaneous heat treatment to obtain the resource-based product, biochar. This invention, by combining conductive regulation, physical molding, and flash Joule heating technology, can effectively solve the problem of excessive energy consumption caused by the reliance on external heat sources for long-term drying and pyrolysis in the livestock and poultry manure treatment process.

This invention discloses a modular, environmentally friendly metal-enclosed switchgear, specifically relating to the field of power distribution switchgear technology. It includes: a mounting box, a cabinet, a first track, a second track, a slide rail, and a floating mechanism. The cabinet comprises a rectangular shell composed of multiple plates. An elastic reset structure is provided on the inner side of the rectangular shell. The rectangular shell deforms under the pressure of the mounting box, allowing the elastic reset structure to provide elastic support for the rectangular shell in the horizontal plane, thereby compensating for the assembly tolerance between the mounting box and the slot. This invention, by providing slide rails on both sides of the mounting box, which cooperate with the first and second tracks on the inner side of the cabinet, constitutes a stable dual-track guiding system. This significantly reduces the resistance during the insertion and removal of the mounting box, achieving nearly interference-free smooth sliding, thereby greatly reducing wear on the guide surface and contact surface, and extending the overall service life of the drawer module and the cabinet.

The application relates to the technical field of relays, in particular to a novel magnetic latching relay which comprises a shell, a contact mechanism fixedly installed in the shell, the contact mechanism comprising a first static foot and a second static foot, the first static foot and the second static foot being fixedly installed on one side in the shell, a first static contact being fixedly installed on the first static foot, a second static contact being fixedly installed on the second static foot, a rotating mechanism being rotatably connected to one side in the shell and located between the first static foot and the second static foot, two dynamic contacts being fixedly installed on the rotating mechanism and used for cooperating with the first static contact and the second static contact to realize circuit on-off, a pushing assembly being fixedly installed in the shell and used for driving the rotating mechanism to rotate, and an electromagnetic assembly being fixedly installed in the shell and used for driving the pushing assembly, through rotation of the rotating mechanism, the two dynamic contacts on the rotating mechanism are respectively attached to the first static contact and the second static contact, the single-contact stroke is shortened, and the working efficiency of the device is improved.

The utility model relates to the technical field of electric vehicles, in particular to a power connector for charging an electric vehicle. The utility model provides the power supply connector for charging the electric vehicle, which can be separated in time when the temperature of the butt joint position between the plug and the charging butt joint seat is detected to be abnormal, and avoids accidents caused by overheating. A power connector for charging an electric vehicle comprises power lines, a connector and the like, the power lines are arranged on the left and the right, and the connector is connected to the right side of the power line on the left. According to the utility model, when the temperature sensor detects that the temperature is abnormal, acousto-optic prompting is carried out through the prompting lamp, the electric push rod drives the clamping head to move leftwards, and the clamping head pushes the connector to move leftwards, so that the plug is separated from the charging butt joint seat; and the effects of timely separating when the temperature of the butt joint position between the plug and the charging butt joint seat is detected to be abnormal and avoiding accidents caused by overheating are achieved.

The utility model relates to the technical field of sockets, in particular to a socket, which comprises a base, a plug bush assembly and an upper cover, an installation cavity is arranged on the base, the upper cover is connected with the installation cavity in a buckling way, the plug bush assembly is arranged inside the installation cavity, an abutting part is arranged on the inner wall of the upper cover, and when the upper cover is buckled with the installation cavity, the plug bush assembly is inserted into the abutting part. The socket is provided with a structure for limiting and fixing the plug bush assembly, so that the plug bush assembly is prevented from shaking in the socket when a plug is plugged into and pulled out of the socket, and stable electric connection is ensured.

The present invention discloses a delayed pre-processing fast breaker and a non-arcing breaking control circuit and method. The breaker is used in a DC circuit. The non-arcing breaking control circuit and method apply the breaker. The breaker includes a DC input terminal and a DC output terminal and a conductive path that can be connected to the DC input terminal and the DC output terminal; the conductive path has a first circuit breaker and a second circuit breaker; the first circuit breaker has a pre-processing structure that is controlled by a pre-processing control signal or a conduction control signal to conduct the first circuit breaker with a high resistance or a low resistance; the second circuit breaker has a breaking structure that is naturally conductive and is controlled by a breaking control signal to disconnect the second circuit breaker. This scheme proposes a new breaker that can perform pre-processing breaking before the main breaking, reduce the voltage at both ends of the main breaking circuit, thereby avoiding the generation of arcs and achieving rapid breaking.

The present invention discloses an SVR online feeder automatic voltage regulating and stabilizing transformer, which relates to the technical field of transformers, including a transformer body, an on-load tap changer is arranged inside the transformer body, the on-load tap changer includes an oil chamber, a tap assembly, a drive sleeve, a pressurizing assembly, a filter assembly and an oil return assembly, the oil chamber is filled with insulating oil, the pressurizing assembly divides the oil chamber into an upper chamber and a lower chamber, the tap assembly is electrically connected to the transformer coil, and is used to adjust the output voltage of the transformer, and the pressurizing assembly includes an inclined slot sleeve, a sliding sleeve and a liquid permeable plate. The present invention reduces the generation of arcs when switching the output voltage by setting the tap assembly, and erases the corroded part of the outer side of the output contact, and at the same time, the particulate matter in the insulating oil is filtered and removed by setting the filter assembly, and the filtering effect of the insulating oil is improved by the pressurizing assembly.

The present invention relates to a battery temperature control technology, specifically a temperature control device for a lithium battery of a new energy vehicle, including a lithium battery pack, wherein the lithium battery pack is divided into a main load area and a secondary load area, the main load area on the lithium battery pack is connected to a main load interface, the main load interface is movably plugged with a high-voltage connector, and a high-temperature power-off structure is provided between the main load interface and the high-voltage connector. The present invention is designed as a main load area and a secondary load area in the lithium battery pack, and different interfaces are provided between the two areas. When the temperature of the lithium battery in the main load area rises due to overload, the high-temperature power-off structure can be used to disconnect the high-voltage connector connected to the main load area through the main load interface. At this time, the connection of the secondary load area can meet the short-term basic power supply of the new energy vehicle, and the power supply will be restored after the temperature of the main load area of ​​the lithium battery drops, thereby improving the temperature control effect of the lithium battery of the new energy vehicle.

The invention provides a process chamber of semiconductor equipment. The process chamber comprises a process chamber body, a base, a protective lining and a grounding device, the base is arranged in the process cavity in a liftable mode and used for supporting a wafer, the protective lining is arranged around the inner side wall of the process cavity and used for protecting the inner side wall of the process cavity, the grounding device comprises a first connecting piece, a second connecting piece and a connecting spring, the first connecting piece is connected with the base, the second connecting piece is connected with the first connecting piece through the connecting spring, and the second connecting piece is connected with the second connecting piece through the connecting spring. The second connecting piece can be attached to the protective lining so as to be electrically connected with the base and the protective lining. The first connecting piece is electrically connected with the base, and when the base ascends to a machining position, the connecting spring supports the second connecting piece to be attached to the protective lining, so that electric connection of the base and the protective lining is achieved, the base and the protective lining are located at the same potential, and arc sparking between the base and the protective lining is avoided. The connecting spring cannot be damaged after multiple times of telescoping, and the service life of the grounding device is prolonged.

The utility model provides a kind of operating mechanism for switch cabinet, comprising: rack;Output, rotation is equipped in rack and is linked with linkage piece;Several operating members, limit rotation is equipped in rack and is respectively linked with output position setting, first elastic member is connected between several operating members, first elastic member is used to in one operating member rotation switching station when first compression energy storage release top push operating member rotation;Locking assembly, including rotation is equipped in rack and is locked and is arranged in the linkage piece both sides of several locking members, with several operating members linkage setting and for driving several locking members rotation of several unlocking members, several locking members side recess is equipped with the unlocking slot of the circumferential corresponding linkage piece.Can be through the locking of locking member and be realized when operating mechanism resets to isolation station, immediately through several locking members locking linkage piece, and then locking output, to avoid the situation of operating member continues to drive output swing due to the rebound of first elastic member.

The utility model discloses a battery pack and electric equipment, the battery pack comprises an insulation protection piece, a first layer of battery assembly and a second layer of battery assembly, the second layer of battery assembly is arranged above the first layer of battery assembly, the insulation protection part is coated on the electric connection part of the first-layer battery assembly and / or the second-layer battery assembly, and at least one part of the insulation protection part is positioned between the first-layer battery assembly and the second-layer battery assembly. According to the battery pack disclosed by the utility model, the service life of the battery pack is prolonged, and the use safety of the battery pack is improved.