Battery charging cabinet

Abstract

The utility model provides a battery charging cabinet which comprises a charging cabinet body, a partition plate is arranged in the charging cabinet body and divides the interior of the charging cabinet body into a fire fighting cavity and a charging cavity, a plurality of charging sub-cabinets are arranged in the charging cavity, and fire fighting liquid is arranged in the fire fighting cavity; the charging sub-cabinet comprises a bottom plate, the bottom plate inclines from the charging cavity to the fire fighting cavity, the charging sub-cabinet further comprises a rear plate close to the fire fighting cavity, the top of the rear plate is rotationally connected with the side wall of the charging sub-cabinet, and the rear plate can rotate relative to the side wall of the charging sub-cabinet under pushing of a battery to be charged. The battery to be charged falls into the fire-fighting cavity from an opening between the lower part of the rear plate and the bottom plate; the rear plate is connected with the side wall of the charging sub-cabinet through at least one electromagnetic lock; and a detection unit is arranged in the charging sub-cabinet. And the fire-fighting liquid is only positioned in the fire-fighting cavity, so that fire-fighting treatment can be carried out on the to-be-charged battery, the sealing requirement on the charging sub-cabinet is reduced, and the manufacturing cost of the charging cabinet is saved.

Description

Technical Field

[0001] The present application relates to the technical field of charging devices, and in particular to a battery charging cabinet. Background Art

[0002] Electric bicycles are a means of transportation that is easy to park, energy-saving, environmentally friendly and low-cost. In China alone, the number of electric bicycles has exceeded 350 million. It is estimated that electric bicycles are used about 1 billion times out of the nearly 2.8 billion trips per day. Battery charging cabinets are equipment for charging or replacing the onboard batteries of electric vehicles. They are popular among the general public because of their advantages such as small footprint, easy mobility, high charging efficiency and low cost. However, due to the influence of the battery's own quality and external environmental factors, there are often fire hazards such as fire or battery spontaneous combustion in the charging cabinet. When a fire occurs, if the battery in the charging cabinet is not handled in time, it will cause damage to the electric bicycle battery or charging equipment. In severe cases, it may even cause a large-scale fire or power accident, threatening people's lives and property.

[0003] Therefore, when the batteries in the battery charging cabinet may catch fire or spontaneously combust, how to quickly and effectively carry out fire-fighting treatment on the batteries is an urgent problem to be solved. Utility Model Content

[0004] In view of this, the purpose of the present application is to propose a battery charging cabinet to solve or partially solve the problems raised by the background technology.

[0005] Based on the above purpose, the present application provides a battery charging cabinet, including: a charging cabinet body, a partition is provided in the charging cabinet body, the partition divides the interior of the charging cabinet body into a fire-fighting cavity and a charging cavity, a plurality of charging sub-cabinets are provided in the charging cavity, the charging sub-cabinets are used to place batteries to be charged and charge the batteries to be charged, and the fire-fighting cavity contains fire-fighting liquid;

[0006] The charging sub-cabinet includes a bottom plate, which is inclined from the charging cavity toward the fire-fighting cavity. The charging sub-cabinet also includes a rear plate close to the fire-fighting cavity, the top of the rear plate is rotatably connected to the side wall of the charging sub-cabinet, and the rear plate can be rotated relative to the side wall of the charging sub-cabinet under the push of the battery to be charged, so that the battery to be charged falls into the fire-fighting cavity from the opening between the lower part of the rear plate and the bottom plate;

[0007] The rear plate is connected to the side wall of the charging sub-cabinet via at least one electromagnetic lock;

[0008] A detection unit is provided in the charging sub-cabinet.

[0009] Furthermore, the lower portion of the rear panel is connected to the inner side wall of the charging sub-cabinet via a hinge assembly, and the hinge assembly includes a first sub-assembly and a second sub-assembly that are arranged opposite to each other, and the first sub-assembly and the second sub-assembly correspond to and are hinged to two opposite inner side walls of the charging sub-cabinet one by one.

[0010] Furthermore, the first subassembly and the second subassembly each include a first connecting rod and a second connecting rod that are hinged.

[0011] Further, one end of the first connecting rod is hinged to the lower part of the rear plate, the other end of the first connecting rod is hinged to one end of the second connecting rod, and the other end of the second connecting rod is hinged to the inner wall of the charging sub-cabinet.

[0012] Furthermore, a blocking component is provided in the charging sub-cabinet, and the blocking component is arranged on the bottom plate. The blocking component is located between the first sub-component and the second sub-component, and there is a gap between the blocking component and the first sub-component and the second sub-component.

[0013] Furthermore, the blocking assembly includes a first blocking plate and a second blocking plate that are arranged opposite to each other, and a placement area for placing the battery to be charged is provided between the first blocking plate and the second blocking plate.

[0014] Furthermore, the detection unit includes a temperature sensor and / or a smoke sensor.

[0015] Furthermore, the charging sub-cabinet also includes a front plate, which is arranged away from the fire-fighting cavity and is rotatably connected to a side wall of the charging sub-cabinet.

[0016] Furthermore, it also includes a controller, which is electrically connected to the detection unit and the electromagnetic lock.

[0017] As can be seen from the above, the battery charging cabinet provided by the present application divides the interior of the charging cabinet body into a fire-fighting cavity and a charging cavity by a partition, and a plurality of charging sub-cabinets are arranged in the charging cavity, and the charging sub-cabinets are used to place and charge the batteries to be charged, and the fire-fighting cavity contains fire-fighting liquid. When the detection unit in the charging sub-cabinet detects that the temperature in the charging sub-cabinet is too high or the smoke value is too large, it indicates that the battery to be charged may have dangerous conditions such as fire or spontaneous combustion. At this time, the electromagnetic lock is opened, and then the rear plate of the charging sub-cabinet can be driven by the battery to rotate relative to the side wall of the charging sub-cabinet, so that the battery to be charged falls into the fire-fighting cavity from the opening between the lower part of the rear plate and the bottom plate. The fire-fighting liquid in the fire-fighting cavity can quickly perform fire-fighting treatment on the battery to be charged, avoiding fire or explosion of the battery to be charged; at the same time, the fire-fighting liquid is only located in the fire-fighting cavity, which can not only perform fire-fighting treatment on the battery to be charged, but also reduce the sealing requirements for the charging sub-cabinet, saving the production cost of the charging cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the structure of a battery charging cabinet according to an embodiment of the present application;

[0020] Figure 2 This is a front view of the interior of the charging cavity of an embodiment of the present application;

[0021] Figure 3 A rear view of a partition according to an embodiment of the present application;

[0022] Figure 4 A schematic diagram of the structure of a single charging sub-cabinet according to an embodiment of the present application;

[0023] Figure 5 A cross-sectional schematic diagram of a single charging sub-cabinet according to an embodiment of the present application;

[0024] Figure 6 Another structural schematic diagram of a single charging sub-cabinet according to an embodiment of the present application;

[0025] Figure 7 Another cross-sectional schematic diagram of a single charging sub-cabinet according to an embodiment of the present application;

[0026] In the figure: 1. Charging cabinet body; 11. Partition; 12. Fire protection cavity; 13. Charging cavity; 131. Charging sub-cabinet; 1311. Electromagnetic lock; 1312. Back plate; 1313. Hinge assembly; 13131. First connecting rod; 13132. Second connecting rod; 1314. Detection unit; 1315. Front plate; 1316. Blocking assembly; 13161. First blocking plate; 13162. Second blocking plate. DETAILED DESCRIPTION

[0027] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0028] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connecting" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0029] Electric bicycles are a means of transportation that is easy to park, energy-saving, environmentally friendly and low-cost. In China alone, the number of electric bicycles has exceeded 350 million. It is estimated that electric bicycles are used about 1 billion times out of the nearly 2.8 billion trips per day. Battery charging cabinets are equipment for charging or replacing the onboard batteries of electric vehicles. They are popular among the general public because of their advantages such as small footprint, easy mobility, high charging efficiency and low cost. However, due to the influence of the battery's own quality and external environmental factors, there are often fire hazards such as fire or battery spontaneous combustion in the charging cabinet. When a fire occurs, if the battery in the charging cabinet is not handled in time, it will cause damage to the electric bicycle battery or charging equipment. In severe cases, it may even cause a large-scale fire or power accident, threatening people's lives and property.

[0030] In the related art, in order to solve this problem, each charging cabinet is connected to an external fire-fighting liquid pipeline. The fire-fighting liquid pipeline is opened or closed by a special electromagnetic valve. Once the temperature or smoke in a charging cabinet is detected to be too high, the electromagnetic valve in the charging cabinet is immediately opened to connect the charging cabinet with the external fire-fighting liquid pipeline, so that the external fire-fighting liquid can flow into the charging cabinet to perform fire-fighting treatment on the batteries in the charging cabinet to avoid fire or explosion of the batteries.

[0031] Although this method can be used to carry out fire protection treatment on batteries, since the fire protection fluid must enter the charging sub-cabinet, in order to prevent the fire protection fluid in the charging sub-cabinet from having adverse effects on the batteries in the adjacent charging sub-cabinet, each charging sub-cabinet must be absolutely sealed. This places very high demands on the manufacturing process of the entire charging cabinet and is very expensive, making it difficult for this type of charging cabinet to be widely used.

[0032] Based on the above problems, the present application proposes a battery charging cabinet, in which the fire-fighting fluid is only located in the fire-fighting cavity, which can not only perform fire-fighting treatment on the rechargeable batteries, but also reduce the sealing requirements for the charging sub-cabinet, saving the production cost of the charging cabinet.

[0033] The present application is further explained below in conjunction with the accompanying drawings.

[0034] refer to Figures 1 to 4 The present application provides a battery charging cabinet, comprising: a charging cabinet body 1, wherein a partition 11 is provided in the charging cabinet body 1, wherein the partition 11 divides the interior of the charging cabinet body 1 into a fire-fighting cavity 12 and a charging cavity 13, wherein a plurality of charging sub-cabinets 131 are provided in the charging cavity 13, wherein the charging sub-cabinets 131 are used to place batteries to be charged and charge the batteries to be charged, wherein the fire-fighting cavity 12 contains fire-fighting liquid; wherein the charging sub-cabinet 131 comprises a bottom plate, wherein the bottom plate is inclined from the charging cavity 13 to the fire-fighting cavity 12, wherein the charging sub-cabinet 131 is provided with a plurality of charging sub-cabinets 131, wherein the charging sub-cabinet 131 is ... provided with a plurality of charging sub-cabinets 131, wherein the charging sub-cabinet 131 is provided with a plurality of charging sub-cabinets 131, wherein the charging sub-cabinet 131 is provided with a plurality of charging sub-cabinets 131, wherein the charging sub-cabinet 131 is provided with a plurality of charging sub-cabinets 131, wherein the charging sub-cabinet 131 is provided with a plurality of charging sub-cabinets 131, wherein the charging sub-cabinet 131 is provided with a plurality of charging sub-cabinets 131, wherein the charging sub-cabin It also includes a rear plate 1312 close to the fire fighting cavity 12, the top of the rear plate 1312 is rotatably connected to the side wall of the charging sub-cabinet 131, and the rear plate 1312 can be rotated relative to the side wall of the charging sub-cabinet 131 under the push of the battery to be charged, so that the battery to be charged falls into the fire fighting cavity 12 from the opening between the lower part of the rear plate 1312 and the bottom plate; the rear plate 1312 is connected to the side wall of the charging sub-cabinet 131 through at least one electromagnetic lock 1311; and a detection unit 1314 is provided in the charging sub-cabinet 131.

[0035] Specifically, the fire-fighting cavity 12 contains fire-fighting liquid, which can be water or water with some modifiers added, so as to prevent the fire-fighting liquid in the fire-fighting cavity 12 from freezing in winter. At the same time, the fire-fighting liquid in the fire-fighting cavity 12 needs to be replaced or replenished regularly to ensure that there is enough fire-fighting liquid in the fire-fighting cavity 12 at any time, so as to ensure that the fire-fighting liquid can cool down or extinguish the battery to be charged that falls into the fire-fighting cavity 12 at any time.

[0036] The detection unit 1314 includes a temperature sensor and / or a smoke sensor. A controller is also provided in the charging cavity 13, and the controller is electrically connected to the detection unit 1314. The temperature sensor is used to detect the temperature value in the charging sub-cabinet 131, and the smoke sensor is used to detect the smoke value in the charging sub-cabinet 131. When the temperature value in the charging sub-cabinet 131 detected by the temperature sensor is greater than the preset temperature threshold, the temperature sensor converts the detected temperature value into a temperature signal and sends it to the controller. When the smoke sensor detects that the smoke value in the charging sub-cabinet 131 is greater than the preset smoke threshold, the smoke sensor converts the detected smoke value into a smoke signal and sends it to the controller, and the controller performs subsequent operations after receiving the signal. In this embodiment, the temperature sensor can use the American Control Armored Thermocouple K-type Thermocouple Temperature Sensor, and the smoke sensor can use the Tianjin Huaning GQL0.1 smoke sensor.

[0037] A plurality of charging sub-cabinets 131 are arranged at intervals. The charging sub-cabinets 131 are arranged on the partition 11. Each charging sub-cabinet 131 can be used individually or simultaneously. The charging sub-cabinet 131 is used to place batteries to be charged and charge the batteries to be charged.

[0038] The charging cabinet 131 includes a front plate 1315, which is arranged away from the fire-fighting cavity 12 and is rotatably connected to the side wall of the charging cabinet 131. When a user needs to put his / her battery to be charged into the charging cabinet 131, the user manually opens the charging cabinet 131 and puts the battery to be charged into the charging cabinet 131 to charge the battery to be charged.

[0039] The charging sub-cabinet 131 includes a bottom plate, which is inclined from the charging cavity 13 toward the fire cavity 12. The inclined setting of the bottom plate, on the one hand, allows the battery to be charged to move toward the fire cavity 12 (i.e., away from the front plate 1315) under the action of gravity after being placed in the charging sub-cabinet 131, until it contacts the rear plate 1312 of the charging sub-cabinet 131, so as to protect the stability of the battery to be charged and prevent the rotation of the front plate 1315 from affecting the stability of the battery to be charged when the user opens the front plate 1315, so that the battery falls off; on the other hand, when the battery is in a dangerous situation, when the rear plate 1312 is no longer forcibly connected to the side wall of the charging sub-cabinet 131, due to the inclined setting of the bottom plate, the battery to be charged will move toward the fire cavity 12 under the action of its own weight due to its own weight, and then push the rear plate 1312, so that the battery to be charged falls into the fire cavity 12 from the opening between the lower part of the rear plate 1312 and the bottom plate.

[0040] The charging cabinet 131 also includes a rear plate 1312 near the fire chamber 12, and the rear plate 1312 is connected to the side wall of the charging cabinet 131 through at least one electromagnetic lock 1311, and the electromagnetic lock 1311 is electrically connected to the controller. Under normal circumstances, the electromagnetic lock 1311 is in a closed state to ensure the firm connection between the rear plate 1312 and the charging cabinet 131 to prevent the battery to be charged from falling from the charging cabinet 131. When the battery to be charged in the charging cabinet 131 is overheated or smokes, the detection unit 1314 detects that the temperature value and / or smoke value in the charging cabinet 131 exceeds the preset threshold, and the detection unit 1314 sends a signal to the controller. After receiving the signal, the controller controls the electromagnetic lock 1311 to open, and at this time, the rear plate 1312 and the side wall of the charging cabinet 131 are no longer forcibly connected. In this embodiment, the electromagnetic lock 1311 can be a waterproof electromagnetic lock 1311 of model HC-280B produced by Beijing Huacheng Boye Technology Development Co., Ltd.

[0041] When the rear plate 1312 is no longer forcibly connected to the side wall of the charging sub-cabinet 131, the top of the rear plate 1312 is rotatably connected to the side wall of the charging sub-cabinet 131, so that the rear plate 1312 can be pushed by the battery to be charged (due to the inclined setting of the bottom plate, the battery to be charged will move toward the fire cavity 12 under the action of its own weight, thereby pushing the rear plate 1312) to rotate relative to the side wall of the charging sub-cabinet 131, so that the battery to be charged falls into the fire cavity 12 from the opening between the lower part of the rear plate 1312 and the bottom plate, and the fire-fighting liquid in the fire-fighting cavity 12 can perform fire-fighting cooling or fire-fighting extinguishing on the battery to be charged.

[0042] The battery charging cabinet provided in the present application divides the interior of the charging cabinet body 1 into a fire-fighting cavity 12 and a charging cavity 13 by a partition 11. A plurality of charging sub-cabinets 131 are arranged in the charging cavity 13. The charging sub-cabinets 131 are used to place batteries to be charged and charge the batteries to be charged. The fire-fighting cavity 12 contains fire-fighting fluid. When the detection unit 1314 in the charging sub-cabinet 131 detects that the temperature in the charging sub-cabinet 131 is too high or the smoke value is too large, it indicates that the battery to be charged may be in a dangerous situation such as fire or natural disaster. At this time, the electromagnetic lock 1311 is opened, and then the rear plate 1312 of the charging sub-cabinet 131 can rotate relative to the side wall of the charging sub-cabinet 131 under the push of the battery, so that the battery to be charged falls into the fire fighting cavity 12 from the opening between the lower part of the rear plate 1312 and the bottom plate. The fire fighting liquid in the fire fighting cavity 12 can quickly perform fire fighting treatment on the battery to be charged to avoid fire or explosion of the battery to be charged. At the same time, the fire fighting liquid is only located in the fire fighting cavity 12, which can not only perform fire fighting treatment on the battery to be charged, but also reduce the sealing requirements for the charging sub-cabinet 131, saving the manufacturing cost of the charging cabinet.

[0043] In some embodiments, reference Figure 4 and Figure 5 The lower part of the rear plate 1312 is connected to the inner wall of the charging cabinet 131 through a hinge assembly 1313. The hinge assembly 1313 includes a first subassembly and a second subassembly that are arranged opposite to each other. The first subassembly and the second subassembly correspond to the two opposite inner walls of the charging cabinet 131 one by one and are hinged.

[0044] Specifically, the first subassembly and the second subassembly each include a hinged first link 13131 and a second link 13132. One end of the first link 13131 is hinged to the lower portion of the rear plate 1312, the other end of the first link 13131 is hinged to one end of the second link 13132, and the other end of the second link 13132 is hinged to the inner side wall of the charging cabinet 131.

[0045] The hinge assembly 1313 can be used to adjust the inclination angle of the rear plate 1312 rotatably arranged on the charging cabinet 131 to ensure that batteries to be charged of different sizes can fall into the fire-fighting cavity 12 from the opening between the lower part of the rear plate 1312 and the bottom plate.

[0046] When the rear plate 1312 is pushed by the battery to be charged, the first subassembly and the second subassembly rotate accordingly along the hinge points at both ends of each, and at the same time, the first connecting rod 13131 and the second connecting rod 13132 also rotate relative to the hinge point between the two and gradually unfold until the first connecting rod 13131 and the second connecting rod 13132 are on the same straight line. At this time, the rear plate 1312 is fully opened to ensure that the opening between the lower part of the rear plate 1312 and the bottom plate allows batteries of different sizes to pass through. When the maintenance personnel later inspect or repair the batteries to be charged in the fire body, the rear plate 1312 does not need to be opened at this time. At this time, the maintenance personnel can manually close the rear plate 1312. When the rear plate 1312 is gradually closed, the two ends of the first subassembly and the second subassembly will also rotate accordingly along their respective ends, and the angle between the first connecting rod 13131 and the second connecting rod 13132 gradually decreases and is gradually stored in the charging cabinet 131 until the rear plate 1312 is completely closed. When the rear plate 1312 is closed, the controller controls the electromagnetic lock 1311 between the rear plate 1312 and the charging sub-cabinet 131 to close, thereby ensuring the firmness of the connection between the rear plate 1312 and the charging sub-cabinet 131 .

[0047] In some embodiments, reference Figure 6 and Figure 7 A blocking component 1316 is further provided in the charging sub-cabinet 131. The blocking component 1316 is disposed on the bottom plate. The blocking component 1316 is located between the first sub-component and the second sub-component, and there is a gap between the blocking component 1316 and the first sub-component and the second sub-component.

[0048] Specifically, the blocking assembly 1316 includes a first blocking plate 13161 and a second blocking plate 13162 that are arranged opposite to each other. The first blocking plate 13161 is arranged close to the first subassembly, and there is a gap between the first blocking plate 13161 and the first subassembly. The second blocking plate 13162 is arranged close to the second subassembly, and there is a gap between the second blocking plate 13162 and the second subassembly. In this way, the arrangement of the first blocking plate 13161 and the second blocking plate 13162 is prevented from affecting the rotation of the first connecting rod 13131 and the second connecting rod 13132 in the first subassembly and the second subassembly.

[0049] There is a placement area for placing the battery to be charged between the first blocking plate 13161 and the second blocking plate 13162. The battery to be charged is placed in the placement area. The first blocking plate 13161 and the second blocking plate 13162 limit the battery to be charged from both sides to prevent the battery to be charged from shifting when moving on the inclined bottom plate toward the fire fighting cavity 12, so that the battery to be charged contacts the first subassembly and / or the second subassembly, and then the battery to be charged blocks the rotation of the first connecting rod 13131 and the second connecting rod 13132 in the first subassembly and / or the second subassembly, which ultimately causes the battery to be unable to fall into the fire fighting cavity 12, and the battery cannot be timely cooled for fire fighting.

[0050] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present application as described above, which are not provided in detail for the sake of simplicity.

[0051] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A battery charging cabinet, characterized in that: include: A charging cabinet body, wherein a partition is provided in the charging cabinet body, wherein the partition divides the interior of the charging cabinet body into a fire-fighting cavity and a charging cavity, wherein a plurality of charging sub-cabinets are provided in the charging cavity, wherein the charging sub-cabinets are used to place batteries to be charged and charge the batteries to be charged, and wherein the fire-fighting cavity contains a fire-fighting liquid; The charging sub-cabinet includes a bottom plate, which is inclined from the charging cavity toward the fire-fighting cavity. The charging sub-cabinet also includes a rear plate close to the fire-fighting cavity, the top of the rear plate is rotatably connected to the side wall of the charging sub-cabinet, and the rear plate can be rotated relative to the side wall of the charging sub-cabinet under the push of the battery to be charged, so that the battery to be charged falls into the fire-fighting cavity from the opening between the lower part of the rear plate and the bottom plate; The rear plate is connected to the side wall of the charging sub-cabinet via at least one electromagnetic lock; A detection unit is arranged in the charging sub-cabinet.

2. The battery charging cabinet according to claim 1, characterized in that: The lower part of the rear plate is connected to the inner wall of the charging cabinet via a hinge assembly, and the hinge assembly includes a first subassembly and a second subassembly arranged opposite to each other, and the first subassembly and the second subassembly correspond to the two opposite inner walls of the charging cabinet one by one and are hinged.

3. The battery charging cabinet according to claim 2, characterized in that: The first subassembly and the second subassembly each include a first link and a second link that are hinged.

4. The battery charging cabinet according to claim 3, characterized in that: One end of the first connecting rod is hinged to the lower part of the rear plate, the other end of the first connecting rod is hinged to one end of the second connecting rod, and the other end of the second connecting rod is hinged to the inner side wall of the charging cabinet.

5. The battery charging cabinet according to claim 2, characterized in that: A blocking component is also provided in the charging sub-cabinet. The blocking component is arranged on the bottom plate. The blocking component is located between the first sub-component and the second sub-component, and there is a gap between the blocking component and the first sub-component and the second sub-component.

6. The battery charging cabinet according to claim 5, characterized in that: The blocking assembly comprises a first blocking plate and a second blocking plate which are arranged opposite to each other, and a placement area for placing the battery to be charged is provided between the first blocking plate and the second blocking plate.

7. The battery charging cabinet according to claim 1, characterized in that: The detection unit includes a temperature sensor and / or a smoke sensor.

8. The battery charging cabinet according to claim 1, characterized in that: The charging sub-cabinet further includes a front plate, which is arranged away from the fire-fighting cavity and is rotatably connected to a side wall of the charging sub-cabinet.

9. The battery charging cabinet according to claim 1, characterized in that: A controller is also included, and the controller is electrically connected to the detection unit and the electromagnetic lock.

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