Battery protection box

Abstract

The utility model discloses a battery protection box. The battery protection box comprises a box body and a first limiting piece, the inner side of the box body is provided with a supporting surface, the supporting surface intersects with the first direction, and the supporting surface is configured to support the battery device contained in the box body in the first direction; the first limiting piece is arranged in the box body, one side of the first limiting piece in the second direction is provided with a first limiting surface, the second direction intersects with the first direction, and the first limiting surface is configured to abut against and limit the battery device in the second direction; the first limiting piece can be fixedly installed at different positions of the box body in the second direction; the battery protection box further comprises a second limiting piece, and the second limiting piece is connected to the first limiting piece. The second limiting piece is provided with a second limiting face, the second limiting face and the supporting face are oppositely arranged, and the second limiting face abuts against and limits the battery device in the first direction. According to the technical scheme, the reliability of the battery device in the packaging and conveying process can be improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of batteries, in particular to a battery protection box. BACKGROUND

[0002] In the related art, when the battery device is packaged and transported by the protection box, some relatively violent vibration conditions are inevitable during transportation, so that the battery device collides with the protection box and is subjected to a large impact force. CONTENT OF THE UTILITY MODEL

[0003] The main purpose of the application is to provide a battery protection box, which aims to improve the reliability of the battery device in the packaging and transportation process.

[0004] To achieve the above purpose, the battery protection box provided by the application comprises a box body and a first limiting piece. The inner side of the box body has a support surface, the support surface intersects the first direction, and the support surface is configured to support the battery device placed in the box body in the first direction. The first limiting piece is arranged in the box body, and one side of the first limiting piece in the second direction has a first limiting surface. The second direction intersects the first direction, and the first limiting surface is configured to abut and limit the battery device in the second direction. The first limiting piece can be fixedly installed at different positions of the box body along the second direction. The battery protection box further comprises a second limiting piece connected to the first limiting piece. The second limiting piece has a second limiting surface, and the second limiting surface is arranged opposite to the support surface. The second limiting surface is configured to abut and limit the battery device in the first direction.

[0005] The battery protection box in the technical scheme of the application can support the battery device placed in the box body along the first direction through the support surface on the inner side of the box body. Meanwhile, the battery protection box further comprises a first limiting piece, which has a first limiting surface on one side in the second direction intersecting the first direction. The first limiting surface can abut and limit the battery device placed on the support surface, so that the battery device can be stably fixed in the box body. When the battery device is packaged and transported by the protection box, the first limiting piece can limit the battery device, reducing the possibility of the battery device colliding with the protection box and being subjected to a large impact force, thereby improving the reliability of the battery device in the packaging and transportation process. Furthermore, the first limiting piece in the present application is arranged to be fixedly installed at different positions of the box body along the second direction, so that the first limiting piece can be adaptively installed at the corresponding position according to the size and type of the battery device to be packaged and transported, so as to adapt to the installation of battery devices of corresponding types and sizes, thereby improving the compatibility of the battery protection box for battery devices of different types and sizes. In addition, the second limiting surface of the second limiting piece facing the support surface can cooperate with the support surface to abut and clamp the battery device, thereby further improving the stability of the installation of the battery device in the battery protection box.

[0006] In some embodiments, the support surface is provided with at least two connecting portions arranged along the second direction, and the first limiting member is selectively connected to one of the connecting portions. In this way, the first limiting member can be fixedly installed at the at least two preset installation positions, thereby improving the accuracy of installation of the first limiting member. Meanwhile, the first limiting member can be connected to the corresponding connecting portion without the need for additional objects to be fixed, thereby simplifying the structural arrangement of the battery protection box and improving the convenience of manufacturing thereof.

[0007] In some embodiments, the first limiting member is detachably connected to the connecting portion. In this way, the battery protection box can be used again for different types and sizes of battery devices, further improving the compatibility of the battery protection box for different types and sizes of battery devices.

[0008] In some embodiments, the connecting portion is a first threaded hole provided on the support surface, and the first limiting member is inserted into the first threaded hole and threadedly connected to the first threaded hole. In this way, the stability of the installation of the first limiting member on the box body is improved, so as to simplify the structure of the box body and the first limiting member and improve the convenience of manufacturing of the battery protection box on the basis of the stable abutting and clamping limiting effect of the battery device.

[0009] In some embodiments, the second direction includes a first sub-direction and a second sub-direction, the first direction, the first sub-direction and the second sub-direction intersect with each other in pairs; the number of connecting portions is at least four, and part of the connecting portions are arranged along the first sub-direction and part of the connecting portions are arranged along the second sub-direction. In this way, when one first limiting member is arranged, the first limiting member can be selectively installed; and when a plurality of first limiting members are arranged, at least two opposite first limiting members can be installed in the first sub-direction and the second sub-direction.

[0010] In some embodiments, the connecting portions are arranged in a rectangular array. In this way, the installation positions of the first limiting member have more diversified choices, thereby further improving the compatibility of the battery protection box for different types and sizes of battery devices. Moreover, at least one relatively large battery device can be installed in the battery protection box, or at least two relatively small battery devices can be installed in the battery protection box after more first limiting members are arranged.

[0011] In some embodiments, the first limiting member is slidably installed on the box body along the second direction and can be fixed relative to the box body. In this way, the first limiting member can be installed at any position, thereby improving the compatibility of the battery protection box for different types and sizes of battery devices.

[0012] In some embodiments, the battery protection box further comprises a fixing member connected to the box body and located on the side of the first limiting member opposite to the first limiting surface, the fixing member is arranged in a spaced manner with the first limiting member; and the battery protection box further comprises a filling member filled between the first limiting member and the fixing member. In this way, the fixing member only needs to be fixed at a fixed position, thereby simplifying the setting of the fixing structure and improving the convenience of manufacturing the protection box.

[0013] In some embodiments, the number of filling members is at least two, and the at least two filling members are arranged in sequence along the arrangement direction of the first limiting member and the fixing member. In this way, the number of filling members can be selectively used after the first limiting member is slid into position according to the type and size of the battery device, thereby facilitating the compatibility of the battery protection box for different types and sizes of battery devices.

[0014] In some embodiments, the support surface is provided with a sliding groove extending along the second direction, and a part of the first limiting member is slidably installed in the sliding groove; the inner side of the box body further has a connecting surface and a mounting surface, the connecting surface is connected to the support surface and the mounting surface; in the first direction, the connecting surface extends from one end connected to the support surface to the side opposite to the support surface; the filling member is arranged in the sliding groove, one end of the sliding groove close to the mounting surface penetrates the connecting surface, and the fixing member is arranged on the mounting surface. In this way, the sliding of the first limiting member can be guided by the sliding groove, so as to improve the accuracy and stability of the sliding installation of the first limiting member. The filling member can also be arranged in the sliding groove, so that the filling member can also be guided by the sliding groove, and the filling member can stably abut and limit the first limiting member along the arrangement direction of the first limiting member and the fixing member.

[0015] In some embodiments, the second direction includes a first sub-direction and a second sub-direction, and the first direction, the first sub-direction and the second sub-direction intersect with each other; the number of sliding grooves is at least two, at least one sliding groove extends along the first sub-direction, and at least one sliding groove extends along the second sub-direction. In this way, when one first limiting member is arranged, the first limiting member can be selectively installed; and when a plurality of first limiting members are arranged, at least two opposite first limiting members can be installed in the first sub-direction and the second sub-direction.

[0016] In some embodiments, the second limiting member can be fixedly installed at different positions of the first limiting member along the first direction. In this way, the second limiting member can be correspondingly installed according to the height, type and size of the battery device, further improving the compatibility of the battery protection box for different types and sizes of battery devices.

[0017] In some embodiments, the second limiting member is provided with a second threaded hole, and an end of the first limiting member away from the supporting surface is arranged in the second threaded hole and is threadedly connected with the second threaded hole. In this way, the installation height of the second limiting member can be adjusted adaptively by rotating the second limiting member according to the height type of the battery device, and the convenience of adjusting the installation position is improved.

[0018] In some embodiments, the first limiting member is provided with at least two first rotation-stopping holes arranged side by side along the first direction, the second limiting member is provided with a second rotation-stopping hole communicated with the second threaded hole, and the battery protection box further comprises a rotation-stopping member arranged in the corresponding second rotation-stopping hole and the first rotation-stopping hole. In this way, the rotation of the second limiting member can be blocked by arranging the rotation-stopping member, so that the rotation of the second limiting member under the vibration working condition during transportation is reduced, the possibility that the abutting and clamping limiting effect on the battery device is affected is reduced, and the stability of the installation of the battery device in the battery protection box is improved.

[0019] In some embodiments, the first limiting member is provided with at least two first connecting holes arranged side by side along the first direction, the second limiting member is provided with a second connecting hole, and the battery protection box further comprises a first screwing member arranged in the first connecting hole and the second connecting hole. In this way, the second limiting member is not easy to interfere with the box body during installation, and the convenience of installation is improved.

[0020] In some embodiments, the number of the first limiting members is at least two, and the first limiting surfaces of the at least two first limiting members are oppositely arranged, the second limiting member is arranged along the arrangement direction of the oppositely arranged two first limiting members, the two ends of the second limiting member are connected to the oppositely arranged two first limiting members through two first screwing members respectively, and the second connecting hole is arranged along the extension direction of the second limiting member. In this way, since the two ends of the second limiting member are fixed and have a relatively long length, the stability of the abutting and clamping limiting of the battery device is improved.

[0021] In some embodiments, the number of the first limiting members is at least two, and the first limiting surfaces of the at least two first limiting members are oppositely arranged,

[0022] And / or, the battery protection box further comprises a detector module and a signal transmission module, the signal transmission module is electrically connected with the detector module, and the signal transmission module is configured to transmit the signal detected by the detector module to the transportation equipment.

[0023] And / or, the battery protection box further comprises a pressure relief valve arranged in the box body and communicated with the inner side of the box body.

[0024] And / or, the box body comprises opposite first and second box walls, and a plurality of third box walls between the first and second box walls; the first box wall has a support surface, the third box walls are rotationally connected with the first box wall, the second box wall is rotationally connected with a third box wall, and the rotation axes of the third box wall with the first box wall and the second box wall with the third box wall all intersect in a first direction;

[0025] And / or, the box body further has a first outer surface and a second outer surface, the first outer surface is arranged opposite to the support surface, and the second outer surface is connected to the first outer surface; the first outer surface is provided with a groove, and the groove penetrates the second outer surface;

[0026] And / or, the material of the box body is metal.

[0027] Therefore, the two opposite first limiting members can realize uniform abutting clamping and limiting of the battery device, and improve the stability of the battery device installation. The signal transmission module establishes electrical connection between the battery protection box and the transportation equipment, so that when the battery device is in thermal runaway and the corresponding signal is detected by the detector module, the alarm can be timely transmitted to the transportation equipment. The pressure relief valve is provided on the box body, so that the battery protection box can be timely vented when thermal runaway occurs. The third box wall is rotationally connected with the first box wall, and the second box wall is rotationally connected with a third box wall, so that the plurality of box side walls can be opened and closed to install and place the battery device, the first limiting member and the second limiting member. The recess is provided on the lower surface of the box body and penetrates the side surface, so that the forklift can be conveniently inserted through the recess, and the convenience of transferring the battery protection box is improved. The material of the box body is metal, which can improve the fireproof performance of the box body. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0029] Figure 1 is a sectional view of an embodiment of the battery protection box of the present application;

[0030] Figure 2 is Figure 1 is a partial structure diagram of the battery protection box of the present application;

[0031] Figure 3 is Figure 2 is a partial enlarged view of A in the battery protection box of the present application;

[0032] Figure 4 is Figure 1Another perspective view of the battery protection box;

[0033] Figure 5 For Figure 4 A local enlarged view at B in FIG. 1;

[0034] Figure 6 A cross-sectional view of another embodiment of the battery protection box of the present application;

[0035] Figure 7 For Figure 6 A local structural view of FIG. 1;

[0036] Figure 8 For Figure 6 Another perspective view of the battery protection box of FIG. 1;

[0037] Figure 9 For Figure 8 A local enlarged view at C in FIG. 1;

[0038] Figure 10 For Figure 6 Another perspective view of the chute of FIG. 1.

[0039] Brief Description of the Drawings:

[0040] 100, battery protection box; 10, box body; 11, support surface; 111, connecting portion; 1111, first threaded hole; 12, chute; 13, connecting surface; 14, mounting surface; 15, first box wall; 16, second box wall; 17, third box wall; 18, first outer surface; 181, groove; 20, first limiting member; 21, first limiting surface; 22, first rotation-stopping hole; 23, first connecting hole; 30, fixing member; 40, filling member; 50, second limiting member; 51, second limiting surface; 53, second threaded hole; 55, second rotation-stopping hole; 57, second connecting hole; 60, rotation-stopping member; 71, first screwing member; 73, second screwing member; 80, buffer pad; 91, detector module; 93, fire extinguishing agent module; 95, pressure relief valve; 200, battery device.

[0041] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0043] It should be noted that all the direction indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the direction indications will also change accordingly.

[0044] In the present application, unless specifically defined and limited otherwise, the terms "connection", "fixation", etc. should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] In addition, the description involving "first", "second", etc. in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is to include three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B schemes. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection claimed by the present application.

[0046] The battery device, that is, the device for storing electric energy, is not only widely used in energy storage power supply systems such as hydroelectric, thermal, wind and solar power stations, but also widely used in electric bicycles, electric motorcycles, electric vehicles, rail trains and other electric vehicles and other fields.

[0047] The battery device can include a battery box and a battery monomer arranged in the battery box. The battery box can include a box body and a box cover covering the box body to form a receiving cavity for receiving the battery monomer. The battery monomer is the smallest unit of the battery, which usually includes a shell, an end cover assembly, an electrode assembly and an electrolyte. The shell can be provided with an opening at one end, the electrode assembly can be arranged in the shell, and the end cover assembly can cover the opening of the shell and be provided with a liquid injection hole for injecting electrolyte into the shell. The electrode assembly is the component that actually undergoes electrochemical reaction in the battery monomer, which can include a positive plate, a negative plate and a separator between the two, and is formed by winding or laminating the positive plate, the negative plate and the separator.

[0048] In addition, the battery device may be damaged and scrapped after being used for a long time, and in order to improve environmental protection, the battery device is packaged and transported by using a protective box. However, due to the existence of some relatively violent vibration working conditions during transportation, the battery device will collide with the protective box and be subjected to a large impact force.

[0049] Therefore, based on the above considerations, in order to solve the problem that the battery device in the related art is easily subjected to a large impact force during transportation, the present application provides a novel battery protective box. The battery protective box innovatively sets a first limiting piece in the box body, so as to abut and limit the battery device placed on the support surface intersecting the first direction by the first limiting surface on one side of the first limiting piece in the second direction, thereby improving the reliability of the battery device during packaging and transportation. At the same time, the first limiting piece is further arranged to be fixedly installed at different positions of the box body along the second direction, so as to improve the compatibility of the battery protective box for different types and sizes of battery devices.

[0050] In addition, it should be noted that the protective box provided by the present application can be used for packaging and transporting waste battery devices, and of course can also be used for packaging and transporting newly produced battery devices.

[0051] Next, the structure of the battery protective box provided by the present application will be explained and described:

[0052] Please refer to Figure 1 and Figure 2 In an embodiment of the present application, the battery protective box 100 comprises a box body 10 and a first limiting piece 20; the inside of the box body 10 has a support surface 11, the support surface 11 intersects the first direction, and the support surface 11 is configured to support the battery device 200 accommodated in the box body 10 in the first direction; the first limiting piece 20 is arranged in the box body 10, and the first limiting piece 20 has a first limiting surface 21 on one side in the second direction, the second direction intersects the first direction, and the first limiting surface 21 is configured to abut and limit the battery device 200 in the second direction, so that the battery device 200 is fixed to the box body 10; wherein the first limiting piece 20 can be fixedly installed at different positions of the box body 10 along the second direction.

[0053] The box 10 can be used to provide a space for accommodating the battery device 200 to be packaged and delivered, so as to protect the battery device 200 during the delivery process. In order to facilitate the taking and placing of the battery device 200, the box 10 can be provided as at least two parts which can be opened and closed, and the space for accommodating the battery device 200 is formed by the at least two parts, so that the battery device 200 can be taken and placed by opening the at least two parts. For example, the box 10 is provided as including the opposite first box wall 15 and second box wall 16, and a plurality of third box walls 17 located between the first box wall 15 and the second box wall 16, the first box wall 15 has a support surface 11, the third box wall 17 is rotationally connected with the first box wall 15, and the second box wall 16 is rotationally connected with one of the third box walls 17. Of course, the first box wall 15 and the plurality of third box walls 17 can be fixedly connected to form a bottom box, and the second box wall 16 is formed as an openable box cover. The structure type of the box 10 is not limited in the present application. In addition, the support surface 11 inside the box 10 can be used to place the battery device 200 and support the battery device 200 in the first direction. In the normal installation and use state of the battery protection box 100, the first direction can be the vertical direction, and the support surface 11 can be arranged upward. Therefore, the inner bottom surface of the box 10 can be formed as the support surface 11. Of course, the support surface 11 can also be formed by other objects arranged in the box 10. In addition, in the projection plane perpendicular to the first direction, the projection of the box 10 can be a rectangle, and of course can also be a square or a circle, and the shape of the box 10 is not limited in the present application. In addition, in order to improve the fireproof performance of the battery protection box 100, the material of the box 10 can be metal. Of course, the material of the box 10 can also be plastic or other materials, which is not limited in the present application.

[0054] The first limiting piece 20 can form a first limiting surface 21 on one side in the second direction to abut and limit the battery device 200 by the first limiting surface 21. The second direction can be a horizontal direction. In addition, the first limiting piece 20 can abut and clamp the battery device 200 in cooperation with the box body 10. Of course, the first limiting piece 20 can also be provided as at least two, and the at least two first limiting pieces 20 are arranged at intervals, and the battery device 200 is abutted and clamped by the two opposite first limiting pieces 20. Moreover, since the horizontal direction has two intersecting directions. Therefore, the second direction can include a first sub-direction and a second sub-direction, and the first direction, the first sub-direction and the second sub-direction intersect with each other in pairs. The first sub-direction and the second sub-direction can be two intersecting horizontal directions. At this time, only the first limiting piece 20 with the first limiting surface 21 on one side in the first sub-direction can be provided to abut and clamp the battery device 200 in the first sub-direction by cooperation of the first limiting piece 20 and the box body 10, or cooperation of the two opposite first limiting pieces 20. Of course, only the first limiting piece 20 with the first limiting surface 21 on one side in the second sub-direction can be provided to abut and clamp the battery device 200 in the second sub-direction by cooperation of the first limiting piece 20 and the box body 10, or cooperation of the two opposite first limiting pieces 20. Or, the first limiting piece 20 with the first limiting surface 21 on one side in the first sub-direction and the first limiting piece 20 with the first limiting surface 21 on one side in the second sub-direction can be provided to abut and clamp the battery device 200 in the first sub-direction and the second sub-direction. It can be seen that the number and position of the first limiting piece 20 are not limited in the present application. One or two opposite first limiting pieces 20 can be provided in the first sub-direction, one or two opposite first limiting pieces 20 can be provided in the second sub-direction, or one or two opposite first limiting pieces 20 can be provided in the first sub-direction and the second sub-direction. In addition, the first limiting piece 20 can be a column structure, of course, it can also be a plate structure or a block structure, etc. Moreover, it can be arranged along the first direction, of course, it can also be arranged along the second direction. In addition, the first limiting piece 20 can be fixedly installed at different positions of the box body 10 along the second direction, that is, the first limiting piece 20 can have selectable installation positions on the box body 10 along the second direction, so that the battery device 200 can be adaptively installed at the corresponding position according to the type and size of the battery device 200, and the first limiting piece 20 can abut and clamp the battery device 200 accordingly. The selectable installation positions include any position of the box body 10 in the second direction, or a plurality of preset positions of the box body 10 arranged along the second direction. In addition, the first limiting piece 20 can be detachably connected to the box body 10, of course, it can also be non-detachably connected.

[0055] The battery protection box 100 in the technical scheme of the present application can support the battery device 200 placed in the box body 10 along the first direction through the support surface 11 on the inner side of the box body 10. Meanwhile, the battery protection box 100 further comprises a first limiting piece 20, which has a first limiting surface 21 on one side in the second direction intersecting the first direction. The first limiting surface 21 can abut against and limit the battery device 200 placed on the support surface 11, so that the battery device 200 can be more stably fixed in the box body 10. In this way, when the battery device 200 is packaged and delivered by using the protection box, the first limiting piece 20 can limit the battery device 200, reduce the possibility of the battery device 200 colliding with the protection box and being subjected to a large impact force, and thus help to improve the reliability of the battery device 200 in the packaging and delivery process. Moreover, the first limiting piece 20 in the present scheme is further arranged to be fixedly installed at different positions of the box body 10 along the second direction, so that the first limiting piece 20 can be adaptively installed at the corresponding positions according to the size and type of the battery device 200 to be packaged and delivered, so as to adapt to the installation of the battery device 200 of the corresponding type and size, and thus help to improve the compatibility of the battery protection box 100 for different types and sizes of battery devices 200.

[0056] Please refer to Figure 1 and Figure 2 In an embodiment of the present application, the number of the first limiting pieces 20 is at least two, and the first limiting surfaces 21 of the at least two first limiting pieces 20 are oppositely arranged.

[0057] The number of the first limiting pieces 20 is at least two, that is, the number of the first limiting pieces 20 can be three or more. Moreover, at least two of the first limiting pieces 20 are oppositely arranged in the first sub-direction or the second sub-direction in the second direction.

[0058] In the present embodiment, the battery device 200 is abutted and clamped and limited by the two oppositely arranged first limiting pieces 20, and the two oppositely arranged first limiting pieces 20 can be installed at different positions of the box body 10, thus helping to improve the compatibility of the battery protection box 100 for different types and sizes of battery devices 200. Meanwhile, the opposite sides of the battery device 200 are abutted and clamped and limited by the first limiting pieces 20, which can also improve the uniformity of the stress and thus improve the stability of the battery device 200 fixed in the battery protection box 100.

[0059] Please refer to Figure 1 , Figure 2 and Figure 4In an embodiment of the present application, the number of the first limit members 20 is at least four, and at least two of the first limit members 20 are arranged opposite to each other along one of the first sub-direction and the second sub-direction intersecting the second direction, and at least two of the first limit members 20 are arranged opposite to each other along the other of the first sub-direction and the second sub-direction.

[0060] The number of the first limit members 20 is at least four, that is, the number of the first limit members 20 can be four or more. Moreover, at this time, there are at least two of the first limit members 20 arranged opposite to each other in the first sub-direction, and at least two of the first limit members 20 arranged opposite to each other in the second sub-direction.

[0061] In the embodiment, two of the first limit members 20 are arranged opposite to each other in the first sub-direction and the second sub-direction, so that the battery device 200 can be limited by the abutting clamping force in all four directions, thereby further improving the stability of the battery device 200 fixed in the battery protection box 100.

[0062] Please refer to Figure 1 , Figure 2 and Figure 4 In an embodiment of the present application, the support surface 11 is provided with at least two connecting portions 111, the at least two connecting portions 111 are arranged along the second direction, and the first limit member 20 is selectively connected to one of the connecting portions 111.

[0063] The connecting portion 111 can be used to install and connect the first limit member 20. The connecting portion 111 and the first limit member 20 can be detachably connected as described below, or can be non-detachably connected, for example, adhesively connected.

[0064] In the embodiment, the at least two connecting portions 111 are arranged along the second direction to install the first limit member 20, which can realize the point installation of the first limit member 20 in at least two preset installation positions. At this time, it is beneficial to improve the accuracy of the installation of the first limit member 20. Moreover, the first limit member 20 can be connected to the corresponding connecting portion 111, without the need for fixing by means of an additional object, thereby simplifying the structure of the battery protection box 100 and improving the convenience of manufacturing.

[0065] In an embodiment of the present application, the first limit member 20 is detachably connected to the connecting portion 111.

[0066] The detachable connection, that is, the first limiting piece 20 can be separated and removed without damaging the connection structure. Among them, the detachable connection between the first limiting piece 20 and the connecting part 111 can be that the connecting part 111 is set as the first threaded hole 1111 as described below, realizing the threaded connection of the two. Of course, it can also be that the connecting part 111 is set as a magnetic part, and the first limiting piece 20 is set as a metal part, realizing the magnetic attraction connection of the two. Or the connecting part 111 is set as a clamping hole, and the first limiting piece 20 is provided with a buckle, realizing the clamping connection of the two. It can be seen that the structure type of the connecting part 111 is not limited in the present application.

[0067] In the present embodiment, the first limiting piece 20 and the connecting part 111 are set as detachable connection, so that the first limiting piece 20 can be disassembled and removed after installation, so that the battery protection box 100 can be used for different types and sizes of battery devices 200 again, further improving the compatibility of the battery protection box 100 for different types and sizes of battery devices 200.

[0068] Please refer to Figure 1 and Figure 2 In an embodiment of the present application, the connecting part 111 is a first threaded hole 1111 provided on the support surface 11, and the first limiting piece 20 is inserted into the first threaded hole 1111 and threadedly connected with the first threaded hole 1111.

[0069] When the connecting part 111 is the first threaded hole 1111, the first limiting piece 20 can be a cylindrical structure extending in the first direction, and an external thread is provided at one end for threaded connection with the first threaded hole 1111.

[0070] In the present embodiment, the connecting part 111 is set as the first threaded hole 1111, and the first limiting piece 20 is threadedly connected with the first threaded hole 1111, which has the advantages of simplicity and reliability, thereby facilitating the stability of the installation of the first limiting piece 20 on the box body 10, so as to simplify the structure of the box body 10 and the first limiting piece 20 on the basis of playing a stable abutting clamping limiting role on the battery device 200, and improve the manufacturing convenience of the battery protection box 100.

[0071] Please refer to Figure 1 , Figure 2 and Figure 4 In an embodiment of the present application, the number of connecting parts 111 is at least four, part of the connecting parts 111 are arranged along the first sub-direction, and part of the connecting parts 111 are arranged along the second sub-direction.

[0072] In the embodiment, the connecting portions 111 are arranged along the first sub-direction and arranged along the second sub-direction, so that when the number of the first limiters 20 is one, the first limiters 20 can be selectively installed in the posture of the first limiting surface 21 facing one side of the first sub-direction or the posture of the first limiting surface 21 facing one side of the second sub-direction, so as to selectively abut and clamp the battery device 200 in the first sub-direction or the second sub-direction. When the number of the first limiters 20 is at least four, at least two first limiters 20 are arranged relative to each other along the first sub-direction, and at least two first limiters 20 are arranged relative to each other along the second sub-direction, the number and arrangement of the connecting portions 111 can also be applied, so as to install at least two first limiters 20 relative to each other in the first sub-direction and the second sub-direction.

[0073] For reference Figure 1 and Figure 4 In an embodiment of the present application, the connecting portions 111 are arranged in a rectangular array.

[0074] In the embodiment, the connecting portions 111 are arranged in a rectangular array, so that the installation position of the first limiters 20 has more diversified choices, thereby further improving the compatibility of the battery protection box 100 for different types and sizes of battery devices 200. Moreover, at this time, at least two battery devices 200 with relatively small volumes can be installed in the battery protection box 100 after being matched with more first limiters 20.

[0075] For reference Figure 6 and Figure 10 In an embodiment of the present application, the first limiters 20 are slidably installed in the box body 10 along the second direction and can be limited and fixed relative to the box body 10.

[0076] The first limiters 20 are slidably installed along the second direction, which can be that only the first limiters 20 are slidably installed along the first sub-direction, of course, can be that only the first limiters 20 are slidably installed along the second sub-direction, or that the first limiters 20 are slidably installed along the first sub-direction and the second sub-direction. In addition, the first limiters 20 are limited and fixed relative to the box body 10, which can be fixed by the cooperation of the filler 40 and the fixing member 30 as described below, of course, can be that when the first limiters 20 are slid to the required installation position, the first limiters 20 and the box body 10 are directly fixed by bolts and nuts.

[0077] In the embodiment, the first limiting piece 20 is slid along the second direction, facilitating installation of the first limiting piece 20 to any position, and improving the compatibility of the battery protection box 100 for use of different types and sizes of battery devices 200.

[0078] For reference Figures 6 to 9 In an embodiment of the present application, the battery protection box 100 further comprises a fixing piece 30 connected to the box body 10 and located on the side of the first limiting piece 20 opposite to the first limiting surface 21, the fixing piece 30 is spaced apart from the first limiting piece 20, and the battery protection box 100 further comprises a filling piece 40 filled between the first limiting piece 20 and the fixing piece 30.

[0079] The filling piece 40 can be used to fill between the first limiting piece 20 and the fixing piece 30, so that after the fixing piece 30 is connected to the box body 10, the first limiting piece 20 can be abutted and limited, and the first limiting piece 20 can stably abut and clamp the battery device 200. The filling piece 40 can be a block structure, and can also be a column structure. The number of filling pieces 40 can be one, and can also be at least two. The fixing piece 30 can be a block structure, and can also be a column structure. The number of fixing pieces 30 can be arranged corresponding to the first limiting piece 20, that is, one fixing piece 30 corresponds to one first limiting piece 20 for use, so that the filling piece 40 in the middle plays an abutting and limiting role on the first limiting piece 20. In addition, the fixing piece 30 and the box body 10 can be detachably connected, and can also be non-detachably connected, for example, adhesively connected.

[0080] In the embodiment, the filling piece 40 and the fixing piece 30 are arranged to abut and limit the first limiting piece 20, so that only the fixing piece 30 needs to be fixed at a fixed position, thereby simplifying the setting of the fixing structure and improving the convenience of manufacturing the protection box.

[0081] For reference Figures 6 to 9 In an embodiment of the present application, the number of filling pieces 40 is at least two, and the at least two filling pieces 40 are arranged in sequence along the arrangement direction of the first limiting piece 20 and the fixing piece 30.

[0082] In the embodiment, by arranging at least two filling pieces 40, the number of filling pieces 40 can be selectively used after the first limiting piece 20 is slid into position according to the type and size of the battery device 200, thereby facilitating the compatibility of the battery protection box 100 for use of different types and sizes of battery devices 200.

[0083] For reference Figures 6 to 9In an embodiment of the present application, the size of at least part of the filling member 40 is different in the arrangement direction of the first limiting member 20 and the fixing member 30.

[0084] In the embodiment, the size of at least part of the filling member 40 is set to be different, so that when the filling member 40 is selected to fill between the first limiting member 20 and the fixing member 30, it can be more diversified and adapted, further improving the compatibility of the battery protection box 100 for use with different types and sizes of battery devices 200. Of course, the present application is not limited to this, and in other embodiments, the size of each filling member 40 can also be set to be the same in the arrangement direction of the first limiting member 20 and the fixing member 30.

[0085] For reference Figure 6 and Figure 10 In an embodiment of the present application, the support surface 11 is provided with a sliding groove 12, which extends in the second direction, and part of the first limiting member 20 is slidingly installed in the sliding groove 12.

[0086] The sliding groove 12 can be a T-shaped groove or a dovetail groove to improve the stability of the sliding installation of the first limiting member 20. Of course, the sliding groove 12 can also be a rectangular groove. In addition, the sliding groove 12 can be arranged only in the first sub-direction on the support surface 11, of course, the sliding groove 12 can also be arranged only in the second sub-direction on the support surface 11, or the sliding groove 12 can be arranged in both the first sub-direction and the second sub-direction.

[0087] In the embodiment, the first limiting member 20 is slidingly installed in the sliding groove 12, so that the sliding of the first limiting member 20 can be guided by the sliding groove 12 to improve the accuracy and stability of the sliding installation of the first limiting member 20.

[0088] For reference Figure 6 In an embodiment of the present application, the inside of the box 10 also has a connecting surface 13 and a mounting surface 14, the connecting surface 13 is connected to the support surface 11 and the mounting surface 14; in the first direction, the connecting surface 13 extends from one end connected to the support surface 11 to the side facing away from the support surface 11; the filling member 40 is arranged in the sliding groove 12, the end of the sliding groove 12 close to the mounting surface 14 penetrates the connecting surface 13, and the fixing member 30 is arranged on the mounting surface 14.

[0089] When the first direction is the up-down direction, the mounting surface 14 is lower than the support surface 11 and located at the edge of the mounting surface 14. For example, when the sliding groove 12 is arranged in both the first sub-direction and the second sub-direction, the mounting surface 14 can be annular and arranged around the support surface 11 to simplify the structure of the box 10.

[0090] In the embodiment, the chute 12 is provided in a through manner at the end close to the fixing member 30, so that the filler 40 can also be arranged in the chute 12, and the filler 40 can also be guided by the chute 12, and the filler 40 can stably abut against the first limiting member 20 along the arrangement direction of the first limiting member 20 and the fixing member 30.

[0091] In an embodiment of the present application, the number of the chutes 12 is at least two, at least one chute 12 is arranged along the first sub-direction, and at least one chute 12 is arranged along the second sub-direction.

[0092] In the embodiment, at least one chute 12 is arranged along the first sub-direction, and at least one chute 12 is arranged along the second sub-direction, so that when the number of the first limiting members 20 is one, the first limiting member 20 can be selectively mounted on the chute 12 arranged along the first sub-direction or the chute 12 arranged along the second sub-direction, so that the battery device 200 can be selectively abutted and clamped and limited in the first sub-direction or the second sub-direction. When the number of the first limiting members 20 is at least four, at least two first limiting members 20 are arranged along the first sub-direction, and at least two first limiting members 20 are arranged along the second sub-direction, the number and arrangement of the chutes 12 can also be applied, so that at least two opposite first limiting members 20 can be mounted in the first sub-direction and the second sub-direction. Moreover, the chute 12 in the first sub-direction can be arranged in a continuous and communicated state, or can include two spaced groove sections, and the two first limiting members 20 in the first sub-direction can be respectively mounted in the two groove sections. Similarly, the chute 12 in the second sub-direction can be arranged in a continuous and communicated state, or can include two spaced groove sections, and the two first limiting members 20 in the second sub-direction can be respectively mounted in the two groove sections.

[0093] Please refer to Figure 6 and Figure 7 In an embodiment of the present application, the fixing member 30 is detachably connected to the box body 10.

[0094] In the embodiment, the fixing member 30 is detachably connected, so that it can be detached and removed, so that the filler 40 can be replaced, and the battery protection box 100 can be used for different types and sizes of battery devices 200 again, and the compatibility of the battery protection box 100 for different types and sizes of battery devices 200 is further improved. In order to improve the convenience of disassembly and assembly, the battery protection box 100 can also include a second screw member 73, which can be a screw, or can include a bolt and a nut, to lock the fixing member 30 to the box body 10.

[0095] Please refer toFigure 1 and Figure 2 In an embodiment of the present application, the battery protection box 100 further comprises a second limiting member 50, which is connected to the first limiting member 20; the second limiting member 50 has a second limiting surface 51, which is arranged opposite to the supporting surface 11, and the second limiting surface 51 is configured to abut against the battery device 200 in the first direction.

[0096] The second limiting member 50 can be a plate structure, and of course can also be a columnar structure or a block structure, and the present application does not limit the structure type of the second limiting member 50. In addition, one first limiting member 20 can be connected with the second limiting member 50, and of course some first limiting members 20 can be connected with the second limiting member 50, or all first limiting members 20 can be connected with the second limiting member 50. In addition, when the first limiting member 20 is arranged in extension in the first direction, the second limiting member 50 can be connected to the upper end of the first limiting member 20.

[0097] In the embodiment, the second limiting member 50 is further arranged on the first limiting member 20, and the second limiting surface 51 of the second limiting member 50 facing the supporting surface 11 can cooperate with the supporting surface 11 to abut and clamp the battery device 200, so that the battery device 200 can be clamped and limited in the first direction, thereby further improving the stability of the installation of the battery device 200 in the battery protection box 100.

[0098] Please refer to Figure 1 and Figure 2 In an embodiment of the present application, the second limiting member 50 can be fixedly installed at different positions of the first limiting member 20 in the first direction.

[0099] In addition, the second limiting member 50 can be fixedly installed at different positions of the first limiting member 20 in the first direction, that is, the second limiting member 50 can have selectable installation positions on the first limiting member 20 in the first direction, so that it can be adaptively installed at the corresponding position according to the type and size of the battery device 200, so that the second limiting member 50 can abut and clamp the battery device 200. The selectable installation positions include any position of the first limiting member 20 in the first direction, and also include several preset positions of the first limiting member 20 arranged in the first direction. In addition, the second limiting member 50 can be detachably connected to the first limiting member 20, and of course can also be non-detachably connected.

[0100] In the embodiment, the second limiting member 50 is arranged to be fixedly installed at different positions of the first limiting member 20 along the first direction, so that the second limiting member 50 can be correspondingly installed according to the height type of the battery device 200, and the compatibility of the battery protection box 100 for different types of battery devices 200 is further improved.

[0101] Please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 In an embodiment of the present application, the second limiting member 50 is provided with a second threaded hole 53, and the first limiting member 20 is arranged to pass through the second threaded hole 53 and is threadedly connected with the second threaded hole 53.

[0102] In the embodiment, the second limiting member 50 is threadedly installed on the first limiting member 20 through the second threaded hole 53, so that the installation height of the second limiting member 50 can be adjusted by rotating the second limiting member 50 according to the height type of the battery device 200, and the convenience of adjusting the installation position is improved. At the same time, the second limiting member 50 and the first limiting member 20 can be directly connected, the fixing structure is simplified, and the convenience of manufacturing the battery protection box 100 is improved.

[0103] Please refer to Figures 2 to 5 In an embodiment of the present application, the first limiting member 20 is provided with at least two first rotation stopping holes 22 arranged side by side along the first direction, and the second limiting member 50 is provided with a second rotation stopping hole 55 communicated with the second threaded hole 53. The battery protection box 100 further comprises a rotation stopping member 60 arranged to pass through the corresponding second rotation stopping hole 55 and the first rotation stopping hole 22.

[0104] In the embodiment, after the second limiting member 50 is rotationally installed on the first limiting member 20, the rotation of the second limiting member 50 can be blocked by arranging the rotation stopping member 60, so that the rotation of the second limiting member 50 under the vibration condition during transportation is reduced, the abutting and clamping limiting effect of the battery device 200 is not affected, and the stability of the battery device 200 installed in the battery protection box 100 is improved. The rotation stopping member 60 can be a rod structure, or can comprise a bolt and a nut, so that the nut is arranged to pass through the second rotation stopping hole 55 and the first rotation stopping hole 22, and the possibility of disengagement of the rotation stopping member 60 is reduced. Alternatively, the rotation stopping member 60 can comprise a rod, a blocking head arranged at one end of the rod, and an elastic ring arranged at the other end of the rod, so that the elastic ring is arranged to pass through the second rotation stopping hole 55 and the first rotation stopping hole 22 by elastic extrusion, and the possibility of disengagement of the rotation stopping member 60 is reduced by cooperation of the elastic ring and the blocking head.

[0105] Please refer to the reference. Figures 6 to 9 In one embodiment of this application, the first limiting member 20 is provided with at least two first connecting holes 23, and the at least two first connecting holes 23 are arranged side by side along a first direction; the second limiting member 50 is provided with a second connecting hole 57, and the battery protection box 100 further includes a first screw connector 71, which passes through the first connecting hole 23 and the second connecting hole 57.

[0106] In this embodiment, the second limiting member 50 and the first limiting member 20 are connected by a first screw connector 71, which makes it less likely for the second limiting member 50 to interfere with the housing 10 during installation, thereby improving the ease of installation. At the same time, this connection method between the second limiting member 50 and the first limiting member 20 also provides a structural basis so that two opposing first limiting members 20 can share one second limiting member 50. That is, there are at least two first limiting members 20, and the first limiting surfaces 21 of at least two first limiting members 20 are arranged opposite each other; the second limiting member 50 extends along the arrangement direction of the two opposing first limiting members 20, and both ends of the second limiting member 50 are connected to the two opposing first limiting members 20 by two first screw connectors 71 respectively; the second connecting hole 57 extends along the extending direction of the second limiting member 50. At this time, the two opposing first limiting members 20 share a second limiting member 50. Since both ends of the second limiting member 50 are fixed and it has a relatively long length, the stability of the abutment and clamping of the battery device 200 can be improved. Furthermore, it should be noted that the second limiting member 50 shared by the two opposing first limiting members in the first sub-direction and the second limiting member 50 shared by the two opposing first limiting members in the second sub-direction need to be stacked in the first direction. In addition, the first screw 71 can be a screw, or it can include bolts and nuts.

[0107] Please refer to the reference. Figure 1 and Figure 2 In one embodiment of this application, the battery protection box 100 further includes a buffer pad 80, and at least one of the support surface 11, the first limiting surface 21 and the second limiting surface 51 is provided with the buffer pad 80.

[0108] The cushioning pad 80 can be made of foam to provide flame retardancy and reduce the spread of thermal runaway. Alternatively, the cushioning pad 80 can be made of rubber or silicone.

[0109] In this embodiment, a buffer pad 80 is provided on at least one of the support surface 11, the first limiting surface 21 and the second limiting surface 51, so that the battery device 200 can be buffered and protected, reducing the possibility of being crushed and damaged.

[0110] Please refer to the reference. Figure 1 and Figure 2In an embodiment of the present application, the battery protection box 100 further comprises a detector module 91 and a fire extinguishing agent module 93, the detector module 91 and the fire extinguishing agent module 93 are arranged in the box body 10; the detector module 91 is electrically connected to the fire extinguishing agent module 93, the detector module 91 comprises at least one of a smoke sensor, a temperature sensor and a flame sensor.

[0111] The detector module 91 can comprise only one of the smoke sensor, the temperature sensor and the flame sensor, or can comprise at least two of the smoke sensor, the temperature sensor and the flame sensor, and the at least two can be separately installed, and of course can be integrated as a whole. The fire extinguishing agent module 93 can comprise a container storing fire extinguishing agent, and a valve arranged at the outlet of the container.

[0112] In the embodiment, the detector module 91 can detect smoke, temperature or flame, so as to transmit the detected signal to the fire extinguishing agent module 93 when thermal runaway occurs, so that the valve in the fire extinguishing agent module 93 is automatically opened, and the fire extinguishing agent in the container is automatically sprayed from the outlet to extinguish the fire in time.

[0113] In an embodiment of the present application, the battery protection box 100 further comprises a signal transmission module, the signal transmission module is electrically connected to the detector module 91, and the signal transmission module is configured to transmit the signal detected by the detector module 91 to the transportation equipment.

[0114] The signal transmission module can be a Bluetooth module, and of course can comprise at least one of a socket and a plug-in wire harness, which can be electrically connected to the transportation equipment, such as a vehicle, and the type of the signal transmission module is not limited in the present application.

[0115] In the embodiment, the signal transmission module establishes electrical connection between the battery protection box 100 and the transportation equipment, so that when the battery device 200 is detected by the detector module 91 to have thermal runaway, the corresponding signal can be transmitted to the transportation equipment in time to alarm.

[0116] Please refer to Figure 1 and Figure 2 In an embodiment of the present application, the battery protection box 100 further comprises a pressure relief valve 95, the pressure relief valve 95 is arranged in the box body 10 and communicates with the inside of the box body 10.

[0117] In the embodiment, the pressure relief valve 95 is arranged on the box body 10, so that the battery protection box 100 can be timely vented when thermal runaway occurs.

[0118] In an embodiment of the present application, the pressure relief valve 95 can be arranged as an explosion-proof valve of the battery device 200 to timely release pressure. The fire extinguishing agent module 93 and the detector module 91 can be located above the explosion-proof valve, and the fire extinguishing agent module 93 can be higher than the installation position of the detector module 91, so that the detector module 91 can better detect upward smoke or flame, and the fire extinguishing agent module 93 can have a better spraying angle.

[0119] Please refer to Figure 1 In an embodiment of the present application, the box 10 includes opposite first and second box walls 15 and 16, and a plurality of third box walls 17 between the first and second box walls 15 and 16; the first box wall 15 has a support surface 11, the third box walls 17 are rotationally connected to the first box wall 15, the second box wall 16 is rotationally connected to a third box wall 17, and the rotation axes of the third box walls 17 and the first box wall 15 and the rotation axes of the second box wall 16 and the third box wall 17 all intersect in a first direction.

[0120] When the first direction is a vertical direction, the first box wall 15 can be a bottom wall of the box 10, the second box wall 16 can be a top wall, and the third box walls 17 can be side walls. The fire extinguishing agent module 93, the detector module 91, and the pressure relief valve 95 can all be installed on the third box walls 17.

[0121] In the embodiment, the third box wall 17 is rotatably connected with the first box wall 15, and the second box wall 16 is rotatably connected with a third box wall 17, so that the plurality of box side walls can be opened and closed to install the battery device 200, the first limiting member 20 and the second limiting member 50. Especially, when the second limiting member 50 is rotatably installed on the first limiting member 20 by sleeving and rotating through the first threaded hole 1111 as described above, the plurality of third box walls 17 can be opened to facilitate the rotation of the second limiting member 50 during installation. The rotatable connection between the third box wall 17 and the first box wall 15, and the rotatable connection between the second box wall 16 and a third box wall 17 can be achieved by inserting and connecting a shaft hole, or can be achieved by a hinge. In addition, when the plurality of third box walls 17 and the second box wall 16 are closed, one of the upper ends of the first box wall 15 and the third box wall 17 is provided with a buckle, and the other is provided with a buckle hole, and the first box wall 15 and the plurality of third box walls 17 are clamped and fixed to achieve locking and maintaining of the closed state. Of course, one of the upper ends of the first box wall 15 and the third box wall 17 can be provided with a plug, and the other can be provided with a plug hole, and the first box wall 15 and the plurality of third box walls 17 are inserted and fixed to achieve locking and maintaining of the closed state. Alternatively, the upper ends of the first box wall 15 and the third box wall 17 are connected by magnetic attraction or screw connection, and the application does not limit the locking mode of the first box wall 15 and the plurality of third box walls 17 in the closed state.

[0122] Please refer to Figure 1 In an embodiment of the application, the box 10 further has a first outer surface 18 and a second outer surface, the first outer surface 18 is arranged opposite to the support surface 11, and the second outer surface is connected to the first outer surface 18; the first outer surface 18 is provided with a groove 181, and the groove 181 penetrates the second outer surface.

[0123] When the first direction is a vertical direction, the first outer surface 18 can be a lower surface of the box 10, and the second outer surface can be a side surface of the box 10.

[0124] In the embodiment, the groove 181 is arranged on the lower surface of the box 10 and penetrates the side surface, so that the forklift can be conveniently inserted through the groove 181, and the convenience of transferring the battery protection box 100 is improved.

[0125] Please refer to Figures 1 to 5In an embodiment of the present application, the battery protection box 100 comprises a box body 10 and a first limiting piece 20. The box body 10 has a support surface 11 on the inner side. The support surface 11 intersects the first direction and is configured to support the battery device 200 in the box body 10 in the first direction. The first limiting piece 20 is arranged in the box body 10. The first limiting piece 20 has a first limiting surface 21 on one side in the second direction. The second direction intersects the first direction. The first limiting surface 21 is configured to abut and limit the battery device 200 in the second direction. The first limiting piece 20 can be fixedly installed at different positions of the box body 10 in the second direction. The number of the first limiting pieces 20 is at least four. At least two first limiting pieces 20 are arranged in opposite directions along one of the first sub-direction and the second sub-direction intersecting the second direction. At least two first limiting pieces 20 are arranged in opposite directions along the other of the first sub-direction and the second sub-direction. The support surface 11 is provided with a plurality of connecting portions 111. The first limiting piece 20 is selectively connected to one connecting portion 111. The first limiting piece 20 is detachably connected to the connecting portion 111. The connecting portion 111 is a first threaded hole 1111 arranged in the support surface 11. The first limiting piece 20 is inserted into the first threaded hole 1111 and is threadedly connected to the first threaded hole 1111. The connecting portions 111 are arranged in a rectangular array. The battery protection box 100 further comprises a second limiting piece 50. At least one first limiting piece 20 is connected to the second limiting piece 50. The second limiting piece 50 is provided with a second threaded hole 53. One end of the first limiting piece 20 away from the support surface 11 is arranged in the second threaded hole 53 and is threadedly connected to the second threaded hole 53. The first limiting piece 20 is provided with at least two first rotation-stopping holes 22 arranged side by side in the first direction. The second limiting piece 50 is provided with a second rotation-stopping hole 55. The second rotation-stopping hole 55 is connected to the second threaded hole 53. The battery protection box 100 further comprises a rotation-stopping piece 60 arranged in the corresponding second rotation-stopping hole 55 and the first rotation-stopping hole 22. The first limiting piece 20 is provided with at least two first connecting holes 23 arranged side by side in the first direction. The second limiting piece 50 is provided with a second connecting hole 57. The battery protection box 100 further comprises a first screwing piece 71 arranged in the first connecting hole 23 and the second connecting hole 57.

[0126] The above description is only the preferred embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields based on the inventive concept of the present application and the content of the specification and drawings are included in the patent protection scope of the present application.

Claims

1. A battery protection case characterized by comprising: The battery protection box comprises: a box body, an inner side of the box body being provided with a support surface intersecting a first direction, the support surface being configured to support a battery device accommodated in the box body in the first direction; and a first limiting member provided in the box body, one side of the first limiting member in a second direction intersecting the first direction being provided with a first limiting surface, the first limiting surface being configured to abut and limit the battery device in the second direction; wherein the first limiting member is fixedly installed at different positions of the box body along the second direction; the battery protection box further comprises a second limiting member connected to the first limiting member; the second limiting member is provided with a second limiting surface opposite to the support surface, the second limiting surface being configured to abut and limit the battery device in the first direction.

2. The battery protection case according to claim 1, wherein The support surface is provided with at least two connecting portions arranged along the second direction, and the first limiting member is selectively connected to one of the connecting portions.

3. The battery protection case according to claim 2, wherein The first limiting member is detachably connected to the connecting portion.

4. The battery protection case according to claim 3, wherein The connecting portion is a first threaded hole provided in the support surface, the first limiting member is inserted into the first threaded hole and is threadedly connected to the first threaded hole.

5. The battery protection case of claim 2, wherein, The second direction comprises a first sub-direction and a second sub-direction, and the first direction, the first sub-direction and the second sub-direction intersect each other. The number of the connecting portions is at least four, and part of the connecting portions are arranged along the first sub-direction and part of the connecting portions are arranged along the second sub-direction.

6. The battery protection case of claim 5, wherein, The connecting portions are arranged in a rectangular array.

7. The battery protection case of claim 1, wherein, The first limiting member is slidably installed in the box body along the second direction and is limitingly fixed relative to the box body.

8. The battery protection case of claim 7, wherein, The battery protection box further comprises a fixing member connected to the box body and located on a side of the first limiting member opposite to the first limiting surface, and the fixing member is spaced apart from the first limiting member. The battery protection box further comprises a filling member filled between the first limiting member and the fixing member.

9. The battery protection case of claim 8, wherein, The number of the filling members is at least two, and the at least two filling members are sequentially arranged along the arrangement direction of the first limiting member and the fixing member.

10. The battery protection case of claim 8, wherein, The support surface is provided with a sliding groove extending along the second direction, and part of the first limiting member is slidably installed in the sliding groove. The inner side of the box body is further provided with a connecting surface and an installation surface, the connecting surface being connected to the support surface and the installation surface; in the first direction, the connecting surface extends from one end connected to the support surface to a side opposite to the support surface; the filling member is provided in the sliding groove, one end of the sliding groove close to the installation surface penetrates the connecting surface, and the fixing member is provided on the installation surface.

11. The battery protection case of claim 10, wherein, The second direction comprises a first sub-direction and a second sub-direction, and the first direction, the first sub-direction and the second sub-direction intersect each other. The number of the sliding grooves is at least two, at least one of the sliding grooves extending along the first sub-direction and at least one of the sliding grooves extending along the second sub-direction.

12. The battery protection case according to any one of claims 1 to 11, wherein The second limiting piece is fixedly installed at different positions of the first limiting piece along the first direction.

13. The battery protection case of claim 12, wherein, The second limiting piece is provided with a second threaded hole, and an end of the first limiting piece away from the support surface is arranged in the second threaded hole and is threadedly connected with the second threaded hole.

14. The battery protection case of claim 13, wherein, The first limiting piece is provided with at least two first rotation-stopping holes arranged side by side along the first direction. The second limiting piece is provided with a second rotation-stopping hole communicated with the second threaded hole. The battery protection box further comprises a rotation-stopping piece arranged in the corresponding second rotation-stopping hole and the first rotation-stopping hole.

15. The battery protection case of claim 12, wherein, The first limiting piece is provided with at least two first connecting holes arranged side by side along the first direction. The second limiting piece is provided with a second connecting hole, and the battery protection box further comprises a first screwing piece arranged in the first connecting hole and the second connecting hole.

16. The battery protection case of claim 15, wherein, The number of the first limiting pieces is at least two, and the first limiting surfaces of the at least two first limiting pieces are oppositely arranged. The second limiting piece is arranged along the arrangement direction of the two oppositely arranged first limiting pieces, and two ends of the second limiting piece are connected to the two oppositely arranged first limiting pieces through the two first screwing pieces, and the second connecting hole is arranged along the extension direction of the second limiting piece.

17. The battery protection case according to any one of claims 1 to 11, wherein The number of the first limiting pieces is at least two, and the first limiting surfaces of the at least two first limiting pieces are oppositely arranged.

18. The battery protection case according to any one of claims 1 to 11, wherein The battery protection box further comprises a detector module and a signal transmission module, the signal transmission module is electrically connected with the detector module, and the signal transmission module is configured to transmit the signal detected by the detector module to a transportation device.

19. The battery protection case according to any one of claims 1 to 11, wherein The battery protection box further comprises a pressure relief valve arranged in the box and communicated with the inside of the box.

20. The battery protection case according to any one of claims 1 to 11, wherein The box comprises oppositely arranged first and second box walls and a plurality of third box walls between the first and second box walls, the first box wall has the support surface, the third box wall is rotationally connected with the first box wall, the second box wall is rotationally connected with one of the third box walls, and the rotation axes of the first and second box walls and the third box wall and the rotation axes of the second and third box walls all intersect the first direction.

21. The battery protection case according to any one of claims 1 to 11, wherein The box further comprises first and second outer surfaces, the first outer surface is arranged opposite to the support surface, and the second outer surface is connected with the first outer surface; the first outer surface is provided with a groove, and the groove penetrates the second outer surface.

22. The battery protection case according to any one of claims 1 to 11, wherein The material of the box is metal.

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