Charging explosion-proof box with protection

Abstract

The application discloses a kind of with protection's charging explosion-proof box, belong to charging facility technical field, including explosion-proof box, distribution box, fire extinguishing assembly, socket shell, battery rack, main power switch and circuit breaking driving device, a pair of battery rack is installed in explosion-proof box body inside, fire extinguishing assembly is installed on battery rack, several distribution boxes are installed on the inner wall of explosion-proof box, main power switch is also installed on the inner wall of explosion-proof box, several mounting holes are opened on the inner wall of explosion-proof box plate body, socket shell is installed in mounting hole, several installation spaces are opened in the inside of explosion-proof box plate body, installation space is set on the outside of mounting hole, mounting hole is communicated with installation space, circuit breaking driving device is installed in installation space, circuit breaking driving device is set on the outside of socket shell.The problem of low fire efficiency caused by large spraying area of fire extinguishing device in the charging room in the prior art, which cannot concentrate fire extinguishing, is solved.The safety of charging room is significantly improved, and the fire efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of charging facilities, in particular to a charging explosion-proof box with protection. BACKGROUND

[0002] Nowadays, electric bicycles are more and more common, and in cities, electric bicycles are commonly used tools for people's daily travel. With the increase in the number of electric bicycles, more and more problems are caused, and in order to make it convenient for electric bicycles to charge, the electric batteries can be detached for charging, which leads to more people taking the electric batteries home for charging. Since the electric batteries are prone to heat and fire during charging, it may cause the burning of houses, and even the burning of an entire building, resulting in casualties.

[0003] As for the existing charging room, when a fire occurs during charging, the dry powder extinguisher at the top will sprinkle dry powder, and the entire charging room will be extinguished. However, the defect is that although there is enough installation space to install multiple dry powder extinguishers to achieve a large range of fire extinguishing effect, in order to prevent the charging cable from being too long when the electric battery is charging, the electric battery needs to be placed on a shelf. This will cause a problem that the uppermost fire point has a good fire extinguishing effect when the fire is sprayed, but the fire point blocked by the shelf is not easy to be sprayed by the dry powder extinguisher, resulting in low fire extinguishing efficiency. Therefore, if a fire is not extinguished in time, it may cause the burning of the line or the entire bus next to it, resulting in economic losses. In addition, the large spraying area may also cause damage to the surrounding area. After the accident is handled, the replacement of components increases, which also increases the use cost.

[0004] Therefore, how to provide a charging explosion-proof box with protection to solve the defects of the existing electric battery charging room structure is a technical problem that needs to be solved by those skilled in the art. SUMMARY

[0005] Therefore, the present application provides a charging explosion-proof box with protection to solve the problem of low fire extinguishing efficiency caused by the large spraying area of the fire extinguishing device in the existing charging room.

[0006] In order to achieve the above purpose, the present application provides the following technical scheme:

[0007] The present application discloses a charging explosion-proof box with protection, which comprises:

[0008] An explosion-proof box body is internally provided with a pair of battery placing racks, and a fire extinguishing assembly is installed on the battery placing rack;

[0009] A plurality of distribution boxes are installed on the inner wall of the explosion-proof box body, and a main power switch is also installed on the inner wall of the explosion-proof box body;

[0010] A plurality of installation holes are formed on the inner wall of the explosion-proof box plate body, and a socket shell is installed in the installation holes;

[0011] A plurality of installation spaces are formed in the explosion-proof box plate body, the installation spaces are arranged outside the installation holes, the installation holes are communicated with the installation spaces, and a circuit breaking driving device is installed in the installation spaces and arranged outside the socket shell.

[0012] In a possible implementation, extension holes are arranged on the left and right sides of the installation holes, and a tapered limiting block for limiting the socket shell is installed outside the extension holes.

[0013] In a possible implementation, the socket shell comprises:

[0014] A shell is installed in the installation hole, and a plurality of plug holes are formed on the shell;

[0015] A pair of installation grooves are arranged on the left and right walls of the shell, and a limiting block is reversely connected in the installation groove, one end of the limiting block is provided with a tapered clamping block, and the tapered clamping block is engaged with the tapered limiting block;

[0016] A conductive plate is installed in the shell, and a conductive block is connected between the conductive plates in two perpendicular directions;

[0017] An overcurrent rod is connected with the conductive block at one end, and a contact sheet is connected with the overcurrent rod at the other end, and the contact sheet is arranged in the circuit breaking driving device.

[0018] In a possible implementation, the circuit breaking driving device comprises:

[0019] A pair of sleeves are arranged in the installation space, a fixed plate is installed in the sleeve, a circular hole is formed in the fixed plate, and an extension block is installed at the upper and lower ends of the fixed plate and penetrates the sleeve;

[0020] An installation shell is installed in the installation space, an electromagnet is drivingly connected in the installation shell, one end of the electromagnet is connected with a displacement rod, the displacement rod penetrates the installation shell, and a push plate is installed at the end of the displacement rod;

[0021] A coil is arranged outside the installation shell, and wires are connected at the two ends of the coil, the wires are connected with the extension blocks and the distribution box respectively;

[0022] A driving rod is drivingly connected in the circular hole, and a circular plate is connected at the two ends of the driving rod, an insulating plate is installed at the side edge of one of the circular plates and the side edge of the fixed plate, and a return spring is installed between the two insulating plates;

[0023] A driving spring is installed between the mounting shell and the electromagnet.

[0024] An L-shaped rod is installed at one end of one of the circular plates, and a contact plate is connected to the other end of the L-shaped rod.

[0025] In a possible implementation, the battery placing rack comprises:

[0026] A plurality of support columns are installed in the explosion-proof box, and a connecting plate is installed between the support columns.

[0027] A rectangular groove is formed at the bottom of the connecting plate, and a pair of extension rods are installed at the bottom of the rectangular groove, and the fire extinguishing assembly is installed on the connecting plate.

[0028] In a possible implementation, the fire extinguishing assembly comprises:

[0029] A plurality of rotary motors are installed at the bottom of the connecting plate, one end of the rotary motor is provided with a metal rod, the metal rod extends into the side plate of the explosion-proof box, and the two rotary motors are connected by wires.

[0030] A plurality of connecting boxes are installed at the bottom of the connecting plate, the number of connecting boxes matches the number of rotary motors, and the connecting boxes are provided with a reversing unit and a sensing unit.

[0031] A plurality of rotary rods are connected at one end of the output end of the rotary motor, and the other end of the rotary rod is installed in the reversing unit.

[0032] A reversing rod sequentially passes through all the connecting boxes and the reversing unit.

[0033] A lead screw is rotatably connected between two support columns, a fire extinguishing member is drivingly connected to the lead screw, the top end of the fire extinguishing member is drivingly connected to the rectangular groove, and a pair of transmission belts are connected between the lead screw and the reversing rod.

[0034] In a possible implementation, the reversing unit is composed of two bevel gears.

[0035] In a possible implementation, the fire extinguishing member comprises:

[0036] A storage bin is provided with a through hole at the top side, the through hole is provided with an internal thread structure, and a lead screw is screwed into the through hole.

[0037] A connecting rod is installed at the top of the storage bin, the connecting rod is arranged between two extension rods, a cylindrical block is connected to the upper end of the connecting rod, and the cylindrical block is arranged in the rectangular groove.

[0038] A nozzle is installed at the side of the storage bin, and the nozzle faces the socket housing.

[0039] In a possible implementation, the signal receiving unit is arranged in the storage bin.

[0040] In a possible implementation, a heat insulation layer is arranged in the explosion-proof box body, and a fireproof coating is applied on the surface of the box body.

[0041] The application controls the current into the distribution box through the total power switch, and then distributes power to all circuit breaking driving devices through the distribution box. The socket shell is connected with the circuit breaking driving device through the transmission connection of the mounting hole, so that the socket shell and the circuit breaking driving device are quickly connected. Only when the socket shell is connected with the circuit breaking driving device, the entire socket shell can be connected into the circuit. In addition, when a socket shell catches fire, the circuit breaking driving device pushes the socket shell out of the mounting hole through its driving structure. Thus, the circuit breaking is completed, and the socket shell is completely pushed out, so that the fire point is exposed, and the fire can be quickly extinguished. Moreover, the circuit breaking driving device can be connected with the fire extinguishing assembly after driving the socket shell. At this time, the fire extinguishing assembly is connected with the power supply through the circuit breaking driving device, and the fire extinguishing assembly is driven to extinguish the fire. The fire extinguishing assembly is arranged on the battery placing rack, and can accurately extinguish the fire point by point, thereby significantly improving the safety performance and practical effect. BRIEF DESCRIPTION OF DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other drawings can be obtained from the provided drawings without creative labor.

[0043] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and do not define the limiting conditions for the implementation of the application, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects and purposes that can be achieved by the application, should still fall within the scope of the technical content disclosed by the application.

[0044] Figure 1 A perspective view of the explosion-proof box body is provided for the application;

[0045] Figure 2 A cross-sectional view of the charging explosion-proof box with protection is provided for the application;

[0046] Figure 3 A perspective view of the circuit breaking driving device is provided for the application;

[0047] Figure 4 A perspective view of the conical limiting block provided by the present application;

[0048] Figure 5 A perspective view of the shell provided by the present application;

[0049] Figure 6 A cross-sectional view of the shell and limiting block provided by the present application;

[0050] Figure 7 A perspective view of the sleeve, mounting shell and coil provided by the present application;

[0051] Figure 8 A cross-sectional view of the electromagnet, drive rod, circular plate and L-shaped rod provided by the present application;

[0052] Figure 9 A perspective view of the battery holder provided by the present application;

[0053] Figure 10 A cross-sectional view of the connecting plate provided by the present application;

[0054] Figure 11 A perspective view of the rotary motor, wire and metal rod provided by the present application;

[0055] Figure 12 A perspective view of the fire extinguishing assembly provided by the present application;

[0056] Figure 13 A cross-sectional view of the fire extinguishing member provided by the present application;

[0057] In the figure: 1 explosion-proof box body; 2 distribution box; 3 fire extinguishing assembly; 31 rotary motor; 32 metal rod; 33 wire; 34 rotary rod; 35 connecting box body; 36 transmission belt; 37 lead screw; 38 fire extinguishing member; 381 nozzle; 382 storage bin; 383 connecting rod; 384 cylindrical block; 39 reversing rod; 4 socket shell; 41 conductive plate; 42 limiting block; 43 mounting groove; 44 jack; 45 shell; 46 conductive block; 47 conical clamping block; 48 overcurrent rod; 49 contact sheet; 5 battery holder; 51 connecting plate; 52 support column; 53 rectangular groove; 54 extension rod; 6 main power switch; 7 circuit breaking driving device; 71 coil; 72 sleeve; 73 L-shaped rod; 74 extension block; 75 displacement rod; 76 mounting shell; 77 drive spring; 78 electromagnet; 79 insulating plate; 710 circular plate; 711 return spring; 714 fixed plate; 715 contact plate; 716 push plate; 717 drive rod; 8 extension hole; 9 conical limiting block. DETAILED DESCRIPTION

[0058] The following detailed description of the application is provided as an example of some embodiments of the application and is not intended to limit the application to these embodiments. The following detailed description includes specific details for the purpose of providing a thorough understanding of the inventive concepts. However, it will be apparent to those skilled in the art that the application can be practiced without these specific details. In some instances, well-known structures and functions have not been described in detail in order to avoid obscuring the application. In the following description, numerous specific details are discussed to provide a thorough and enabling description of embodiments of the application. One skilled in the relevant art, however, will recognize that the application can be practiced without one or more of the specific details. In other instances, well-known structures have not been described in order to avoid

[0059] Please refer to Figures 1-13 The application discloses a protective explosion-proof charging box. Figures 1-3 The explosion-proof box body 1 is internally provided with a pair of battery placing racks 5, the battery placing racks 5 are provided with the fire extinguishing assemblies 3, a plurality of distribution boxes 2 are installed on the inner wall of the explosion-proof box body 1, the inner wall of the explosion-proof box body 1 is further provided with a total power switch 6, a plurality of installation holes are formed in the inner wall of the plate body of the explosion-proof box body 1, the installation holes are provided with the socket housings 4, a plurality of installation spaces are formed in the plate body of the explosion-proof box body 1 and are arranged outside the installation holes, the installation spaces are in communication with the installation holes, the installation spaces are provided with the circuit breaker driving devices 7, and the circuit breaker driving devices 7 are arranged outside the socket housings 4. The total power switch 6 and the distribution boxes 2 are used for distributing current and simultaneously controlling power supply, the plate body of the explosion-proof box body 1 is provided with a heat insulation layer and is coated with a fireproof coating on the surface of the plate body, the heat insulation layer is generally a rock wool heat insulation layer, and the fireproof coating is generally a graphite-based coating.

[0060] In a specific embodiment, as shown in Figure 4 The installation holes are provided with extension holes 8 on the left and right sides, and the extension holes 8 are externally provided with tapered limiting blocks 9 used for limiting the socket housings 4. The extension holes 8 are used for facilitating the overturning of the limiting blocks 42, and the tapered limiting blocks 9 are used for cooperating with the tapered clamping blocks 47 to form limiting.

[0061] In a specific embodiment, as shown in Figures 5-6The socket housing 4 includes a conductive plate 41, a limiting block 42, a mounting groove 43, a socket 44, a housing 45, a conductive block 46, a conical locking block 47, a power transmission rod 48, and a contact piece 49. The housing 45 is installed in the mounting hole and has several socket holes 44. The mounting grooves 43 are arranged in pairs and are located on the left and right walls of the housing 45. The limiting block 42 is flipped and connected in the mounting groove 43. A conical locking block 47 is provided at one end of the limiting block 42. The conical locking block 47 and the conical limiting block 47 are engaged. The conductive plate 41 is installed inside the housing 45. A conductive block 46 is connected between two conductive plates 41 in the vertical direction. One end of the power transmission rod 48 is connected to the conductive block 46, and the other end of the power transmission rod 48 is connected to the contact piece 49. The contact piece 49 is located in the circuit breaker drive device 7. The conductive plate 41, housing 45, socket 44, and conductive block 46 are all standard features of the socket. We can see that the socket 44 appears in pairs, usually in two sets. Under normal circumstances, the ones on the same side are one pole. The conductive plate 41 is installed directly behind the socket 44. When the plug is inserted, the metal piece on the plug contacts the conductive plate 41 to conduct electricity. The conductive block 46 connects the two conductive plates 41 that are on the same pole together, so that the sockets can be used simultaneously. The two conductive blocks 46 are then connected to the overcurrent rod 48 respectively. After the contact piece 49 is connected to the circuit breaking drive device 7, a circuit can be generated. The mounting slot 43 is opened to install the limit block 42 and to allow the limit block 42 to rotate.

[0062] In a specific embodiment, such as Figures 7-8 The circuit breaker drive device 7 includes a coil 71, a sleeve 72, an L-shaped rod 73, an extension block 74, a displacement rod 75, a mounting shell 76, a drive spring 77, an electromagnet 78, an insulating plate 79, a circular plate 710, a return spring 711, a fixing plate 714, a contact plate 715, a push plate 716, and a drive rod 717. The sleeves 72 are arranged in pairs and installed in the installation space. A fixing plate 714 is installed in the sleeve 72, and the fixing plate 714 has a circular hole. Extension blocks 74 are installed at both ends of the fixing plate 714, extending out of the sleeve 72. The mounting shell 76 is installed in the installation space, and an electromagnet 78 is connected to the mounting shell 76. One end of the electromagnet 78 is connected to the displacement rod. 75. Displacement rod 75 protrudes from mounting shell 76. Push plate 716 is installed at the end of displacement rod 75. Coil 71 is set outside mounting shell 76. Wires are connected to both ends of coil 71. The wires are connected to extension block 74 and distribution box 2 respectively. Drive rod 717 is connected to the circular hole. Circular plates 710 are connected to both ends of drive rod 717. Insulating plate 79 is installed on the side of one of the circular plates 710 and the side of fixed plate 714. Return spring 711 is installed between the two insulating plates 79. Drive spring 77 is installed between mounting shell 76 and electromagnet 78. One end of L-shaped rod 73 is installed on the upper end of one of the circular plates 710. The other end of L-shaped rod 73 is connected to contact plate 715.

[0063] In this embodiment, the purpose of coil 71 is to generate a magnetic field, which causes electromagnet 78 to displace, thereby pushing drive rod 717 to displace. The displacement of drive rod 717 then pushes socket housing 4 to displace, causing contact piece 49 to separate from circular plate 710, thus breaking the circuit. Sleeve 72 is provided to ensure precise transmission between contact piece 49 and push plate 716, and to better fix fixing plate 714. The extension block on fixing plate 714 extends it to the outside of sleeve 72, facilitating wire connection. Fixing plate 714, three-quarter drive rod 717, and... One of the circular plates 710 is made of a conductive material, so that current can flow through the fixed plate 714, the drive rod 717, and the circular plate 710 in one go, and conduction with the contact piece 49. The L-shaped rod 73 is set to connect the circular plate 710 and the contact plate 715 together. By utilizing the displacement of the circular plate 710, when there is no fire, the circuit breaker drive device 7 is connected to the socket housing 4. When a fire occurs, the circular plate 710 is driven to displace, so that the contact plate 715 contacts the metal rod 32, completing the conduction between the circuit breaker drive device 7 and the fire extinguishing component 3. This can prevent the fire extinguishing component 38 from displacing when there is no fire.

[0064] The mounting shell 76 is designed to provide electromagnetic shielding, preventing electromagnetic interference from affecting the normal operation of the drive spring 77. The drive spring 77 can reset the electromagnet 78 when the current returns to normal. The insulating plate 79 is designed to prevent the current from flowing through the reset spring 711 when the current is conducting, thus avoiding affecting its performance. The reset spring 711 is used to drive the drive rod 717 to reset. After the socket shell 4 is installed, its own elasticity allows the contact piece 49 to make better contact with the circular plate 710, thus achieving circuit conduction.

[0065] In a specific embodiment, such as Figures 9-10 The battery rack 5 includes a connecting plate 51, support columns 52, a rectangular groove 53, and extension rods 54. Several support columns 52 are installed inside the explosion-proof enclosure 1, and the connecting plate 51 is installed between the support columns 52. The rectangular groove 53 is formed at the bottom of the connecting plate 51, and a pair of extension rods 54 are installed at the bottom of the rectangular groove 53. The fire extinguishing component 3 is installed on the connecting plate 51. The connecting plate 51 is used to place the battery. The rectangular groove 53 is designed to allow the fire extinguishing component 38 to move in a planar manner without overturning due to the influence of the lead screw 37.

[0066] In a specific embodiment, such as Figures 11-12The fire extinguishing assembly 3 includes a rotary motor 31, a metal rod 32, a wire 33, a rotating rod 34, a connecting housing 35, a transmission belt 36, a lead screw 37, a fire extinguishing component 38, and a reversing rod 39. Several rotary motors 31 are installed at the bottom of the connecting plate 51. A metal rod 32 is installed at one end of each rotary motor 31, extending into the side plate of the explosion-proof housing 1. Two rotary motors 31 are connected by a wire 33. Several connecting housings 35 are installed at the bottom of the connecting plate 51, and the connecting housings 35 are connected to the rotary motors 31. The quantities are matched, and the connecting box 35 is equipped with a reversing unit and a sensing unit. One end of several rotating rods 34 is connected to the output end of the rotating motor 31, and the other end of the rotating rods 34 is installed in the reversing unit. The reversing rods 39 pass through all the connecting boxes 35 and the reversing units in sequence. The lead screw 37 is rotatably connected between two support columns 52. The lead screw 37 is driven to connect a fire extinguishing component 38. The top of the fire extinguishing component 38 is driven to connect in a rectangular groove 53. A pair of drive belts 36 are connected between the lead screw 37 and the reversing rods 39.

[0067] In this embodiment, two rotary motors 31 are connected in series to the circuit using a metal rod 32 and a wire 33. The rotary motors 31 drive the rotary rod 34 to rotate. The two helical gears of the reversing unit reverse the driving force, causing the rotary rod 34 to rotate. Under the action of the transmission belt 36, the rotational force is transmitted to the lead screw 37, driving the lead screw 37 to rotate. The lead screw 37 uses its external thread to engage with the internal thread on the storage bin 382, ​​causing the fire extinguishing component 38 to translate. As we can see in the process, only when a fire breaks the circuit in a certain socket can a set of rotary motors 31 be started. As long as a set of rotary motors 31 is driven to rotate, the lead screw 37 will move, which will drive the fire extinguishing component 38 to move. By starting the reversing unit, the sensing unit detects the movement and the signal receiving unit in the storage bin 382 receives the rotation signal of the fire position, thus realizing precise fire extinguishing operation.

[0068] In one specific embodiment, the commutation unit consists of two helical gears. The meshing directions of the two helical gears are perpendicular.

[0069] In a specific embodiment, such as Figure 13The fire extinguishing component 38 includes a nozzle 381, a storage bin 382, ​​a connecting rod 383, and a cylindrical block 384. The storage bin 382 has a through hole on its upper side, with an internal thread structure inside. A lead screw 37 is screwed into the through hole. The connecting rod 383 is installed on top of the storage bin 382 and is positioned between two extension rods 54. The upper end of the connecting rod 383 is connected to the cylindrical block 384, which is positioned in a rectangular groove 53. The nozzle 381 is installed on the side of the storage bin 382, ​​facing the socket housing 4. The storage bin 382 in the figure uses a fixed structure; however, preferably, the storage bin 382 can use a rotating structure, which achieves a better spray extinguishing effect. The design of the connecting rod 383 and the cylindrical block 384 prevents the fire extinguishing component 38 from rotating with the lead screw 37.

[0070] In one specific embodiment, a signal receiving unit is provided in the storage bin 382.

[0071] In use, the main power cable of the main power switch 6 is connected to an external power supply. Then, the reused cable is used to distribute power to eight distribution boxes 2. Each distribution box 2 is connected in parallel. The distribution box 2 then supplies power to the drive devices 7 through wires. Each drive device 7 is connected to 20 other drive devices 7. Every two drive devices 7 are matched with a socket housing 4.

[0072] When connecting each socket housing 4, the main power supply is ensured to be in an open circuit state. The socket housing 4 is then inserted along the mounting hole. During insertion, the limiting block 42 is rotated first, so that the end with the conical locking block 47 is fully positioned in the mounting groove 43. Then, the housing 45 is slowly inserted along the mounting hole. During insertion, the through rod 48 and contact piece 49 penetrate into the sleeve 72. As the contact piece 49 moves, it contacts the circular plate 710, driving the drive rod 717 to move and compressing the drive spring 77, causing the other circular plate 710 to contact the push plate 716. Because the limiting block 42 has a V-shaped structure, after pressing the end with the conical locking block 47 into the mounting groove 43, the other end will be positioned outside the mounting groove 43. Therefore... During the movement of the housing 45, the exposed part of the limiting block 42 will gradually approach and abut against the inner wall of the explosion-proof enclosure 1. As the movement continues, the inner wall of the explosion-proof enclosure 1 will gradually flip against the limiting block 42, causing the conical locking block 47 to approach the conical limiting block 9. Because the depth of each mounting hole and the installation space is different, the degree to which the limiting block 42 is flipped is different. This results in the conical locking block 47 and the conical limiting block 9 not being snapped together. At this time, it is necessary to manually drive the limiting block 42 to flip so that the conical locking block 47 and the conical limiting block 9 are engaged together. At this time, although the return spring 711 is compressed, its return force cannot overcome the limiting force between the conical limiting block 9 and the conical locking block 47, thereby realizing the installation of the socket housing 4.

[0073] After power is supplied, the current flows in from one of the wires through the contact piece 49 and the circular plate 710, and after passing through the coil 71, it is transmitted to the fixed plate 714. Then it flows through the drive rod 717 and the circular plate 710 in sequence. Then, the current is transmitted through the current rod 48, the contact piece 49, the conductive plate 41 and the conductive block 46. At this time, if the plug of an appliance comes into contact with the conductive plate 41, the current can be turned on. The return of the current is the same as the current flow path. Only after a circuit is formed can the appliance be powered.

[0074] When a socket catches fire, common sense tells us that the cause is usually a short circuit. A short circuit is equivalent to a direct connection between the positive and negative terminals. In this case, the resistance is very low, and the instantaneous current is very high. This high current causes the coil 71 to generate a strong magnetic field. Under the influence of the Lorentz force, the electromagnet 78 moves within the mounting housing 76, causing the displacement rod 75 to extend outward. During this extension, the push plate 716 pushes the drive rod 717 to translate. Under the restoring force of the return spring 711, the two forces combine to overcome the limiting force between the conical locking block 47 and the conical limiting block 9, pushing the socket housing 4 along the mounting hole. During this pushing process, the contact piece 49 separates from the circular plate 710, breaking the circuit. After the circuit is broken, the inner circular plate... The displacement of 710 will cause the L-shaped rod 73 and contact plate 715 to translate. After translation, the contact plate 715 will contact the metal rod 32. Under the action of the wire 33 connection, the circuit originally used to supply power to the socket housing 4 will be connected to the fire extinguishing component 3, causing the rotary motor 31 to start and the rotary rod 34 to rotate. Then, the reversing rod 39 will be driven to rotate by the double helical gear mechanism. The rotation of the double helical gear will trigger the sensing unit to receive the signal and send the position signal. Through the transmission belt 36, the lead screw 37 will rotate. The external thread of the lead screw 37 will engage with the internal thread in the storage bin 382, ​​so that the fire extinguishing component 38 can move along the lead screw 37. The signal receiving unit in the storage bin 382 will receive the position signal sent by the sensing unit and move it to the fire position to carry out fire extinguishing.

[0075] Compared to existing charging rooms, this setup utilizes a dual approach of power outage and fire suppression to quickly control the fire. Furthermore, by employing precise point-to-point control, the fire suppression components 38 can quickly extinguish the fire at the point of ignition, thus preventing damage to adjacent structures. Unlike existing systems, the circuit breaking process only disconnects the circuit from the location of the fire, or the burning socket, preventing a situation where a fire in one location causes a power outage across the entire structure, further enhancing safety.

[0076] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A protective explosion-proof charging box, characterized in that, include: An explosion-proof enclosure (1) is provided with a pair of battery racks (5) inside, and a fire extinguishing assembly (3) is installed on the battery racks (5). Several distribution boxes (2) are installed on the inner wall of the explosion-proof enclosure (1), and a main power switch (6) is also installed on the inner wall of the explosion-proof enclosure (1). The explosion-proof enclosure (1) has several mounting holes on its inner wall, and the mounting holes are fitted with socket housings (4). The explosion-proof enclosure (1) has several installation spaces inside the plate. The installation spaces are located outside the installation holes. The installation holes are connected to the installation spaces. A circuit breaker drive device (7) is installed in the installation space. The circuit breaker drive device (7) is located outside the socket housing (4). The circuit breaker drive device (7) includes: Sleeves (72) are installed in pairs in the installation space. A fixing plate (714) is installed in the sleeve (72). The fixing plate (714) has a round hole. Extension blocks (74) are installed at the upper and lower ends of the fixing plate (714). The extension blocks (74) extend out of the sleeve (72). Mounting housing (76) is installed in the mounting space. An electromagnet (78) is connected inside the mounting housing (76). One end of the electromagnet (78) is connected to a displacement rod (75). The displacement rod (75) extends out of the mounting housing (76). A push plate (716) is installed at the end of the displacement rod (75). A coil (71) is disposed on the outside of the mounting housing (76). The coil (71) is connected to wires at both ends. The wires are connected to the extension block (74) and the distribution box (2) respectively. A drive rod (717) is connected in the circular hole. Both ends of the drive rod (717) are connected to circular plates (710). An insulating plate (79) is installed on the side of one of the circular plates (710) and the side of the fixed plate (714). A return spring (711) is installed between the two insulating plates (79). A drive spring (77) is installed between the mounting housing (76) and the electromagnet (78); An L-shaped rod (73) is mounted at one end on the upper end of one of the circular plates (710), and the other end of the L-shaped rod (73) is connected to a contact plate (715).

2. The explosion-proof charging box with protection as described in claim 1, characterized in that, Extension holes (8) are provided on the left and right sides of the mounting hole, and a conical limiting block (9) for limiting the socket housing (4) is installed on the outside of the extension hole (8).

3. The explosion-proof charging box with protection as described in claim 2, characterized in that, The socket housing (4) includes: The housing (45) is installed in the mounting hole, and the housing (45) has several insertion holes (44). Mounting slots (43) are arranged in pairs and are opened on the left and right walls of the housing (45). A limiting block (42) is flipped and connected in the mounting slot (43). A conical locking block (47) is provided at one end of the limiting block (42). The conical locking block (47) and the conical limiting block (9) are engaged and connected. A conductive plate (41) is installed inside the housing (45), and a conductive block (46) is connected between two conductive plates (41) in the vertical direction. The overcurrent rod (48) is connected at one end to the conductive block (46), and the other end of the overcurrent rod (48) is connected to a contact piece (49), which is disposed in the circuit breaker drive device (7).

4. The explosion-proof charging box with protection as described in claim 1, characterized in that, The battery holder (5) includes: Several support columns (52) are installed inside the explosion-proof enclosure (1), and connecting plates (51) are installed between the support columns (52). A rectangular groove (53) is formed at the bottom of the connecting plate (51), and a pair of extension rods (54) are installed at the bottom of the rectangular groove (53). The fire extinguishing assembly (3) is installed on the connecting plate (51).

5. The explosion-proof charging box with protection as described in claim 4, characterized in that, The fire extinguishing component (3) includes: Several rotary motors (31) are installed at the bottom of the connecting plate (51). A metal rod (32) is installed at one end of each rotary motor (31). The metal rod (32) extends into the side plate of the explosion-proof box (1). Two rotary motors (31) are connected by a wire (33). Several connecting boxes (35) are installed at the bottom of the connecting plate (51). The number of connecting boxes (35) matches the number of rotary motors (31). A commutation unit and a sensing unit are installed in the connecting boxes (35). Several rotating rods (34) are connected at one end to the output end of the rotary motor (31), and the other end of the rotating rods (34) is installed in the reversing unit; The reversing rod (39) passes through all the connecting housings (35) and the reversing unit in sequence; A lead screw (37) is rotatably connected between two support columns (52). A fire extinguishing component (38) is driven connected to the lead screw (37). The top of the fire extinguishing component (38) is driven connected in the rectangular groove (53). A pair of drive belts (36) are connected between the lead screw (37) and the reversing rod (39).

6. The explosion-proof charging box with protection as described in claim 5, characterized in that, The reversing unit consists of two helical gears.

7. The explosion-proof charging box with protection as described in claim 5, characterized in that, The fire extinguishing component (38) includes: The storage bin (382) has a through hole on the upper side, and an internal thread structure is provided in the through hole, and a lead screw (37) is screwed into the through hole. A connecting rod (383) is installed on the top of the storage bin (382). The connecting rod (383) is located between the two extension rods (54). A cylindrical block (384) is connected to the upper end of the connecting rod (383). The cylindrical block (384) is located in the rectangular groove (53). A nozzle (381) is installed on the side of the storage bin (382), and the nozzle (381) is facing the socket housing (4).

8. The explosion-proof charging box with protection as described in claim 7, characterized in that, The storage bin (382) is equipped with a signal receiving unit.

9. The explosion-proof charging box with protection as described in claim 1, characterized in that, The explosion-proof enclosure (1) has a heat insulation layer installed in the plate and a fireproof coating applied to the surface of the plate.

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