Battery protection box

Abstract

The utility model relates to the technical field of batteries, in particular to a battery protection box which comprises a box body, a cover body and a bearing plate, the top of the box body is open, an air inlet is formed in the bottom of the box body, and a breathable net used for covering the air inlet is arranged on the bottom wall of the box body; the cover body is arranged at the top opening in a turnover manner; a battery containing space is formed between the bearing plate and the cover body, and a heat dissipation assembly is arranged between the bearing plate and the bottom wall of the box body. According to the battery protection box, the heat dissipation assembly is arranged between the bearing plate and the bottom wall of the box body, the heat dissipation assembly can cool the battery in the containing space, the phenomenon of overheating or thermal runaway of the battery is prevented, the heat dissipation effect of the battery protection box is improved, the safety performance of the battery is enhanced, and the service life of the battery is prolonged.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery protection box. Background Technology

[0002] Lithium-ion batteries are primary batteries that use lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. Due to their advantages such as long cycle life, safety and environmental friendliness, and high energy density, they are not only widely used in various portable electronic devices, such as laptops, cameras, and mobile phones, but can also be used as power supply devices for new energy vehicles.

[0003] Due to the highly reactive chemical properties of lithium metal, its processing, storage, and use require stringent environmental conditions. During storage or testing, the temperature of lithium-ion batteries gradually increases over time, affecting their lifespan and safety during testing. This is particularly true for high-capacity lithium-ion batteries used in new energy vehicles, posing a greater challenge to battery safety. Therefore, battery protection boxes not only house lithium-ion batteries but also provide them with protection.

[0004] Most battery cases only secure lithium-ion batteries, ensuring they are not damaged by impacts or pressure during transport. A few cases offer explosion-proof features, but typically lack heat dissipation capabilities, resulting in poor cooling. If the lithium-ion battery overheats or experiences thermal runaway, it not only affects its lifespan but also poses potential safety hazards.

[0005] Therefore, this application is hereby submitted. Utility Model Content

[0006] This application provides a battery protection box to address the problem of how to improve the heat dissipation effect of the battery protection box.

[0007] This application provides a battery protection box, including:

[0008] The box has an open top and an air inlet at the bottom, and a breathable mesh is provided on the bottom wall of the box to cover the air inlet;

[0009] A cover, which is foldably disposed at the top opening;

[0010] A support plate is horizontally disposed inside the housing, forming a battery-accommodating space between the support plate and the cover. A heat dissipation assembly is disposed between the support plate and the bottom wall of the housing, and several heat dissipation holes are provided on the support plate.

[0011] In some embodiments, the support plate is provided with a longitudinally extending support column, which rests on the bottom wall of the box, or the side wall of the box is provided with a support plate extending horizontally into the box for supporting the bottom of the support column.

[0012] In some embodiments, the heat dissipation component includes:

[0013] The mounting rod is horizontally positioned below the support plate, and its two ends are respectively connected to the corresponding side wall of the housing.

[0014] A cooling fan is mounted on the mounting rod via a connector.

[0015] In some embodiments, the battery protection box further includes:

[0016] A temperature detection device is disposed within the receiving space and is used to detect the surface temperature of the battery;

[0017] A control component, connected to the temperature detection device and the cooling fan, is used to receive temperature data sent by the temperature detection device and determine whether it is necessary to control the cooling fan to perform a cooling operation based on the temperature data.

[0018] In some embodiments, a positive terminal connection point and a negative terminal connection point are provided on the side wall of the housing. The positive terminal connection point is electrically connected to the positive terminal of the battery, and the negative terminal connection point is electrically connected to the negative terminal of the battery.

[0019] In some embodiments, the housing is provided with a positive electrode clip for holding the positive electrode of the battery and a negative electrode clip for holding the negative electrode of the battery. The positive electrode connection point is electrically connected to the positive electrode of the battery through the positive electrode clip, and the negative electrode connection point is electrically connected to the negative electrode of the battery through the negative electrode clip.

[0020] In some embodiments, one of the box sidewall and the cover is provided with a limiting block, and the other is provided with a limiting groove for the limiting block to be inserted into.

[0021] In some embodiments, the limiting block is provided on the side wall of the box, and the limiting groove is provided at the bottom of the cover, with the limiting block inserted into the limiting groove from top to bottom.

[0022] In some embodiments, a locking rod is provided in the limiting groove, and the limiting block is provided with an upwardly opening and downwardly recessed locking groove, wherein the locking rod and the locking groove are fitted together.

[0023] In some embodiments, the bottom wall of the housing is provided with downwardly protruding legs, and a plurality of the legs are spaced apart on the outer periphery of the air inlet.

[0024] By adopting the above technical solution, this application has the following beneficial effects compared with the prior art.

[0025] 1. The battery protection box in this application, by setting a heat dissipation component between the support plate and the bottom wall of the box, can cool down the battery in the containment space, prevent the battery from overheating or thermal runaway, improve the heat dissipation effect of the battery protection box, enhance the safety performance of the battery, and extend the service life of the battery. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a battery protection box according to an embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the structure of a battery protection box according to an embodiment of this application;

[0028] Figure 3 This is a bottom view of a battery protection box according to an embodiment of this application.

[0029] In the diagram: 100, Battery protection box; 110, Box body; 111, Storage space; 120, Heat dissipation assembly; 121, Mounting rod; 122, Connector; 123, Cooling fan; 124, Ventilation mesh; 130, Bearing assembly; 131, Support plate; 132, Support column; 133, Bearing plate; 134, Heat dissipation hole; 140, Cover assembly; 141, Hinge; 142, Cover; 143, Glass hole; 144, Limiting groove; 145, Locking rod; 146, Limiting block; 147, Locking groove; 151, Positive electrode clip; 152, Negative electrode clip; 161, Positive electrode connection point; 162, Negative electrode connection point; 170, Support leg; 180, Control assembly; 181, Display screen; 182, Operation button; 183, Control terminal; 190, Temperature detection device. Detailed Implementation

[0030] The technical solutions of this application will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] This application provides a battery protection box 100. For the specific structure of the battery protection box 100, please refer to [reference needed]. Figures 1 to 3It includes a housing 110, a cover 142, and a support plate 133. The housing 110 has an open top and an air inlet at the bottom. The battery is placed inside the housing 110 through the open top. A ventilated mesh 124 is provided on the bottom wall of the housing 110 to cover the air inlet. Cold air can flow into the housing 110 through the ventilated mesh 124 to achieve natural cooling of the battery. The cover 142 is flip-up and located at the open top of the housing 110, which facilitates the removal of the battery from inside the housing 110. The battery is placed inside the housing 110. The support plate 133 is horizontally arranged inside the housing 110, and the space 111 for the battery is formed between the support plate 133 and the cover 142. The support plate 133 is used to support the bottom of the battery. A heat dissipation component 120 is provided between the support plate 133 and the bottom wall of the housing 110. The heat dissipation component 120 is used to perform heat dissipation operation on the battery. Several heat dissipation holes 134 are opened on the support plate 133, which is conducive to heat exchange between hot and cold air and enhances the heat dissipation effect of the battery.

[0032] According to the battery protection box 100 of this application, by providing a heat dissipation component 120 between the support plate 133 and the bottom wall of the box body 110, the heat dissipation component 120 can cool down the battery in the housing space 111, prevent the battery from overheating or thermal runaway, improve the heat dissipation effect of the battery protection box 100, enhance the safety performance of the battery, and extend the service life of the battery.

[0033] like Figure 1 and Figure 3 As shown, the battery protection box 100 also includes a support assembly 130 for supporting the battery. The support assembly 130 includes a support plate 133 and support columns 132 that are disposed on the support plate 133 and extend longitudinally. The support columns 132 rest on the bottom wall of the box body 110, or a support plate 131 extending horizontally into the box body 110 is disposed on the side wall of the box body 110. The support plate 131 is used to support the bottom of the support columns 132. Multiple support columns 132 are spaced apart on the support plate 133 and integrally connected to the support plate 133. By providing multiple support columns 132 on the support plate 133, the support plate 133 can be quickly installed into the box body 110, and the support strength of the support plate 133 is improved, thereby achieving effective support for the battery.

[0034] For example, such as Figure 1 and Figure 3As shown, multiple support columns 132 are vertically inserted through both ends of the support plate 133 in the thickness direction. The bottom of the multiple support columns 132 abuts against the top of the support plate 131, so that the multiple support columns 132 and the support plate 133 integrally connected with the multiple support columns 132 can be quickly installed into the housing 110. Then, the battery is placed on the support plate 133. This not only helps to quickly dissipate the heat generated by the battery through the heat dissipation holes 134, enhances the heat dissipation effect of the battery, extends the battery's service life, and ensures the battery's safety performance, but also facilitates the rapid assembly and disassembly of the battery.

[0035] Please refer to the specific structure of the heat dissipation component 120. Figure 2 and Figure 3 It includes a mounting rod 121 and a cooling fan 123. The mounting rod 121 is horizontally positioned below the support plate 133, and both ends of the mounting rod 121 are connected to the corresponding side walls of the housing 110. The cooling fan 123 is mounted on the mounting rod 121 through a connector 122 so that the cooling fan 123 can be quickly installed inside the housing 110 and perform heat dissipation operation on the battery.

[0036] As part of the heat dissipation assembly 120, a vent mesh 124 is disposed below the cooling fan 123, for example, as shown in the image. Figure 2 and Figure 3 As shown, multiple cooling fans 123 are spaced apart and mounted on the mounting rod 121 via corresponding connectors 122 and are positioned opposite to the ventilation mesh 124. The cooling fans 123 can generate suction or blowing airflow near the battery. When the battery temperature rises, the cooling fans 123 will directly cool the battery in the housing space 111.

[0037] like Figure 3 As shown, the battery protection box 100 also includes a temperature detection device 190 and a control component 180. The temperature detection device 190 is disposed in the receiving space 111 of the box body 110 and is used to detect the surface temperature of the battery. The control component 180 is connected to the temperature detection device 190 and the cooling fan 123. The control component 180 is used to receive the temperature data sent by the temperature detection device 190 and determine whether it is necessary to control the cooling fan 123 to perform a heat dissipation operation based on the temperature data.

[0038] The control component 180 is connected to the temperature detection device 190 and the cooling fan 123. Based on the surface temperature of the battery detected by the temperature detection device 190, it is determined whether the surface temperature of the battery exceeds the warning temperature. If the surface temperature of the battery is greater than or equal to the warning temperature, it indicates that the battery is in a state of rising temperature. Then, the operating mode of the cooling fan 123 is determined and the cooling fan 123 is turned on to cool the battery, so that the battery can be quickly cooled down to a safe temperature. The heat dissipation control method is more refined and user-friendly. It can not only improve heat dissipation efficiency, but also effectively control energy consumption to achieve the purpose of energy saving.

[0039] For example, the temperature detection device 190 can be a temperature sensor that can sense temperature and convert it into a usable output signal, while the control component 180 can be a temperature controller that communicates with multiple temperature sensors. The temperature controller automatically samples and monitors the surface temperature of the battery in real time through the temperature sensors, and controls the cooling fan 123 to perform heat dissipation operation based on the detected surface temperature of the battery.

[0040] Please refer to the specific structure of the control component 180. Figure 1 and Figure 3 It includes a display screen 181, operation buttons 182, and a control terminal 183. The control terminal 183 is connected to the temperature detection device 190 and the cooling fan 123. Users can set the operating parameters of the cooling fan 123 through the display screen 181 and / or operation buttons 182. The control terminal 183 determines the operating mode of the cooling fan 123 according to the above operating parameters and turns on the cooling fan 123 to perform heat dissipation operation on the battery. The heat dissipation control method is more refined and user-friendly.

[0041] like Figure 1 As shown, a positive connection point 161 and a negative connection point 162 are provided on the side wall of the housing 110. The positive connection point 161 is electrically connected to the positive terminal of the battery, and the negative connection point 162 is electrically connected to the negative terminal of the battery. By providing the positive connection point 161 and the negative connection point 162 on the housing 110, external testing devices can be directly connected to the positive connection point 161 and the negative connection point 162, so that various tests can be performed on the battery inside the housing 110. This avoids directly connecting the battery or opening holes for external wiring in an exposed environment, making the testing operation safer and more reliable.

[0042] like Figure 1 and Figure 3As shown, the housing 110 is provided with a positive electrode clip 151 for holding the positive electrode of the battery and a negative electrode clip 152 for holding the negative electrode of the battery. The positive electrode connection point 161 is electrically connected to the positive electrode of the battery through the positive electrode clip 151, and the negative electrode connection point 162 is electrically connected to the negative electrode of the battery through the negative electrode clip 152. For example, the positive electrode connection point 161, the negative electrode connection point 162, the positive electrode clip 151 and the negative electrode clip 152 are all made of conductive materials and are connected by wires so that the positive and negative electrodes of the battery are electrically connected to the positive electrode connection point 161 and the negative electrode connection point 162.

[0043] like Figure 1 and Figure 3 As shown, the battery protection box 100 also includes a cover assembly 140 for opening or closing the top opening of the box 110. The cover assembly 140 includes a cover 142 that is flipped and disposed at the top opening of the box 110. The cover 142 is rotatably connected to the side wall of the box 110 via a hinge 141. The structure is simple and the operation is convenient.

[0044] like Figure 1 As shown, the inner wall of the cover 142 is provided with several glass holes 143. The cover 142 is made of explosion-proof glass, which not only enhances the explosion-proof performance of the battery protection box 100, but also helps testers to observe the storage or testing of the batteries inside the box 110.

[0045] like Figure 1 As shown, one of the side wall of the housing 110 and the cover 142 is provided with a limiting block 146, and the other is provided with a limiting groove 144 for the limiting block 146 to be inserted into. After the battery is placed in the receiving space 111, the cover 142 is flipped over to close the top opening of the housing 110. The limiting block 146 and the limiting groove 144 are inserted and cooperated to make the cover 142 more securely closed, thereby improving the protective performance of the battery protection box 100.

[0046] like Figure 1 As shown, a limiting block 146 protruding upward is provided on the side wall of the housing 110, and a limiting groove 144 with a downward opening and an upward recess is provided at the bottom of the cover 142. For example, both the limiting groove 144 and the limiting block 146 extend along the length direction of the battery protection box 100. The limiting block 146 is inserted into the limiting groove 144 from top to bottom to realize the insertion and cooperation of the limiting block 146 and the limiting groove 144.

[0047] like Figure 1As shown, a locking rod 145 is provided in the limiting groove 144, and a locking groove 147 with an upward opening and a downward recess is provided on the limiting block 146. The locking groove 147 passes through both ends along the length of the battery protection box 100. The locking rod 145 and the locking groove 147 are interlocked to realize the reliable locking function of the cover 142 at a specific position, preventing relative movement between the box 110 and the cover 142 from affecting the storage or testing of the battery. It is safe, reliable and simple in structure.

[0048] like Figures 1 to 3 As shown, the bottom wall of the housing 110 is provided with downward protruding support legs 170. Multiple support legs 170 are spaced apart on the outer periphery of the air inlet. By providing multiple support legs 170 on the bottom wall of the housing 110, the housing 110 is stably supported, and the protective performance of the battery protection box 100 is further improved.

[0049] The battery in this application can be a lithium-ion battery. The battery protection box 100 is used to store and test the lithium-ion battery. The lithium-ion battery can be used in an energy storage device, which can be a vehicle, operating machinery, or other device with a battery swapping function.

[0050] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0051] Furthermore, the terms "upper" and "lower" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "upper" or "lower" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0053] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0054] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A battery protection box, characterized in that, include: The box has an open top and an air inlet at the bottom, and a breathable mesh is provided on the bottom wall of the box to cover the air inlet; A cover, which is foldably disposed at the top opening; A support plate is horizontally arranged inside the housing, and a battery-accommodating space is formed between the support plate and the cover. A heat dissipation assembly is provided between the support plate and the bottom wall of the housing, and several heat dissipation holes are provided on the support plate. The support plate is provided with a longitudinally extending support column, and the side wall of the box is provided with a support plate extending horizontally into the box, which is used to support the bottom of the support column. Multiple support columns are spaced apart on the bearing plate and integrally connected to the bearing plate. The multiple support columns pass through both ends of the bearing plate in the thickness direction in a vertical direction, and the bottom of the multiple support columns abuts against the top of the bearing plate respectively.

2. The battery protection box according to claim 1, characterized in that, The heat dissipation component includes: The mounting rod is horizontally positioned below the support plate, and its two ends are respectively connected to the corresponding side wall of the housing. A cooling fan is mounted on the mounting rod via a connector.

3. The battery protection box according to claim 2, characterized in that, The battery protection box also includes: A temperature detection device is disposed within the receiving space and is used to detect the surface temperature of the battery; A control component, connected to the temperature detection device and the cooling fan, is used to receive temperature data sent by the temperature detection device and determine whether it is necessary to control the cooling fan to perform a cooling operation based on the temperature data.

4. The battery protection box according to claim 1, characterized in that, A positive terminal connection point and a negative terminal connection point are provided on the side wall of the housing. The positive terminal connection point is electrically connected to the positive terminal of the battery, and the negative terminal connection point is electrically connected to the negative terminal of the battery.

5. The battery protection box according to claim 4, characterized in that, The housing is equipped with a positive electrode clip for holding the positive electrode of the battery and a negative electrode clip for holding the negative electrode of the battery. The positive electrode connection point is electrically connected to the positive electrode of the battery through the positive electrode clip, and the negative electrode connection point is electrically connected to the negative electrode of the battery through the negative electrode clip.

6. The battery protection box according to claim 1, characterized in that, One of the side wall of the box and the cover is provided with a limiting block, and the other of the two is provided with a limiting groove for the limiting block to be inserted into.

7. The battery protection box according to claim 6, characterized in that, The limiting block is provided on the side wall of the box, and the limiting groove is provided at the bottom of the cover. The limiting block is inserted into the limiting groove from top to bottom.

8. The battery protection box according to claim 7, characterized in that, A locking rod is provided in the limiting groove, and a locking groove with an upward opening and a downward recess is provided on the limiting block. The locking rod and the locking groove are interlocked.

9. The battery protection box according to any one of claims 1 to 8, characterized in that, The bottom wall of the housing is provided with downward protruding support legs, and multiple support legs are spaced apart on the outer periphery of the air inlet.

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