Battery box stacking fixing system and stacking fixing method

Abstract

The present invention relates to the field of battery box technology, and more specifically, to a battery box stacking and fixing system and a stacking and fixing method. The system comprises: a plurality of battery box assemblies and a plurality of first bracket assemblies. There is a gap between two adjacent layers of battery box assemblies. The support plate of the battery box assembly is detachably connected to the battery box body. The number of first bracket assemblies is less than the number of battery box assemblies. A plurality of battery box assemblies and a plurality of first bracket assemblies are arranged in sequence along a first direction, respectively. The first bracket assemblies and the support plates are staggered in sequence. In the first bracket assembly, the second bracket unit is located between the two first bracket units. The second bracket unit is fixedly connected to the two first bracket units, respectively. The first bracket assembly is wavy. The first bracket unit is detachably connected to the two adjacent support plates, respectively. The second bracket unit is detachably connected to the two adjacent support plates, respectively. Thus, the problem of how to install and fix the battery box is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery boxes, and in particular to a battery box stacking and fixing system and a battery box stacking and fixing method. Background Art

[0002] As the energy source of new energy electric vehicles, the battery box often needs to be loaded with multiple battery boxes, and the battery boxes need to be protected and fixed by a frame when loaded on the vehicle. Existing electric vehicles generally make an overall rectangular frame when arranging multiple layers of battery boxes vertically, and then push multiple battery boxes into the corresponding installation space in sequence in the horizontal direction. However, the battery box frame is easy to deform because of the rectangular frame, and the push-in installation method of the battery box makes it difficult to control the gap between the battery boxes, the installation efficiency is low, and sufficient installation space needs to be reserved, which increases the volume of the battery box frame and occupies a large space in the vehicle. Summary of the invention

[0003] In order to solve the problem of how to install and fix the battery box, the present invention provides a battery box stacking and fixing system and a battery box stacking and fixing method.

[0004] In a first aspect, the present invention provides a battery box stacking and fixing system, the battery box stacking and fixing system comprising:

[0005] A plurality of battery box assemblies, wherein the plurality of battery box assemblies are arranged in sequence along a first direction; there is a gap between two adjacent layers of the battery box assemblies; the battery box assembly comprises a battery box body and a support plate; the support plate is detachably connected to the battery box body;

[0006] A plurality of first bracket assemblies, wherein the number of the first bracket assemblies is less than the number of the battery box assemblies; the plurality of the first bracket assemblies are arranged in sequence along the first direction; the first bracket assemblies and the support plate are staggered in sequence; the first bracket assembly includes two first bracket units and a second bracket unit; the second bracket unit is located between the two first bracket units; the second bracket unit is fixedly connected to the two first bracket units respectively; the first bracket unit includes a plurality of first support rods; the plurality of first support rods are connected end to end in a wavy shape in a second direction; the second direction is perpendicular to the first direction; the second bracket unit includes a plurality of second support rods; the plurality of second support rods are connected end to end in a wavy shape in a second direction; the acute angle formed between the first support rod and the support plate is the first angle; the acute angle formed between the second support rod and the support plate is the second angle; the first angle is greater than the second angle; the first support rod is detachably connected to the two adjacent support plates; the end of the second support rod facing the first direction is the first mounting portion; the end of the second support rod away from the first direction is the second mounting portion; the first mounting portion is detachably connected to the adjacent support plate; the second mounting portion is detachably connected to the adjacent support plate.

[0007] In some embodiments, a height of the second bracket unit along the first direction is greater than a height of the first bracket unit along the first direction.

[0008] In some embodiments, the battery box stacking fixing system also includes a plurality of second bracket assemblies, and the plurality of second bracket assemblies are arranged in sequence along the first direction; the second bracket assembly is located in the first direction of the first bracket assembly; the second bracket assembly and the support plate are staggered in sequence; the second bracket assembly includes two third bracket units and a fourth bracket unit; the fourth bracket unit is located between the two third bracket units; the fourth bracket unit is fixedly connected to the two third bracket units respectively; the third bracket unit includes a plurality of third support rods; the plurality of third support rods are connected end to end in sequence in a wave shape; the fourth bracket unit includes a plurality of fourth support rods; a plurality of The fourth support rod is connected end to end in a wave shape; the acute angle formed by the third support rod and the support plate is the third angle; the acute angle formed by the fourth support rod and the support plate is the fourth angle; the third angle is greater than the fourth angle; the first angle is greater than the third angle; the second angle is greater than the fourth angle; the third support rod is detachably connected to the two adjacent support plates respectively; the end of the fourth support rod facing the first direction is the third mounting portion; the end of the fourth support rod away from the first direction is the fourth mounting portion; the third mounting portion is detachably connected to the support plate adjacent to itself; the fourth mounting portion is detachably connected to the support plate adjacent to itself.

[0009] In some embodiments, a height of the fourth support rod along the first direction is smaller than a height of the third support rod along the first direction.

[0010] In some embodiments, the gap between two adjacent layers of the battery box assemblies decreases successively along the first direction; and the battery box body is located in the first direction of the corresponding support plate.

[0011] In some embodiments, the battery box stacking and fixing system also includes a base; a plurality of the battery box assemblies are located in the first direction of the base; and the support plate closest to the base is detachably connected to the base.

[0012] In a second aspect, the present invention provides a battery box stacking and fixing method, which is applied to a battery box stacking and fixing system described in any one of the above embodiments, and the battery box stacking and fixing method includes:

[0013] Step S10, based on the completion of locking of at least one battery box assembly, placing an active first bracket assembly and an active battery box assembly on the uppermost of at least one locked battery box assembly; until the active first bracket assembly is supported between the locked support plate and the active support plate; when the battery box assembly is locked, the battery box body is located vertically above the support plate;

[0014] Step S20, based on the movable first bracket assembly being supported between the locked support plate and the movable support plate, the movable second bracket unit is respectively locked with the two abutting support plates;

[0015] Step S30, based on the completion of locking of the second bracket unit, the movable first bracket unit is locked with the two abutting support plates respectively, and the stacking quantity of the battery box assembly is obtained;

[0016] Step S40: based on the stacking quantity being less than a first threshold, repeating steps S10 to S30 until the stacking quantity is equal to the first threshold.

[0017] In some embodiments, step S20 includes:

[0018] Step S21, based on the movable first bracket assembly being supported between the locked support plate and the movable support plate, the movable first mounting portion is locked with the support plate abutting against the upper side;

[0019] Step S22: based on the locking of the first mounting portion, the movable second mounting portion is locked with the supporting plate abutting thereunder.

[0020] In some embodiments, the battery box stacking and fixing method further includes:

[0021] Step S50, based on the stacking quantity being equal to the first threshold, placing an active second bracket assembly and an active battery box assembly on the top of the locked plurality of battery box assemblies; until the active second bracket assembly is supported between the locked support plate and the active support plate;

[0022] Step S60, based on the movable second bracket assembly being supported between the locked support plate and the movable support plate, the movable third bracket unit is respectively locked with the two abutting support plates;

[0023] Step S70, based on the third bracket unit being locked, the movable fourth bracket unit is respectively locked with the two abutting support plates, and the stacking quantity of the battery box assembly is obtained;

[0024] Step S80, based on the stacking quantity being less than a second threshold, repeating steps S50 to S70; until the stacking quantity is equal to the second threshold.

[0025] In some embodiments, step S70 includes:

[0026] Step S71, based on the third bracket unit completing the locking, the movable fourth mounting portion is locked with the support plate abutting against the upper side;

[0027] Step S72, based on the locking of the fourth mounting portion, the movable third mounting portion is locked with the support plate abutting thereunder, and the stacking quantity of the battery box assembly is obtained.

[0028] In order to solve the problem of how to install and fix the battery box, the present invention has the following advantages:

[0029] By using a wavy first bracket assembly between adjacent support plates, a triangular stable support is formed, and the first angle is set to be greater than the second angle, so that the supporting force at both ends of the first bracket assembly is more sufficient, and the bracket material in the middle can be saved. The use of such a fixing system can more flexibly adopt the installation method of vertically stacking the battery box assemblies in sequence, which can reduce the gap between adjacent battery box bodies and save space, and mainly use the supporting force at both ends of the first bracket assembly to achieve stable support, which can ensure the stability of the vertical stacking process of the battery box assemblies. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of a battery box stacking and fixing system according to an embodiment is shown;

[0031] Figure 2 Shows Figure 1 A schematic front view of a battery box stacking and fixing system in an embodiment;

[0032] Figure 3 Shows Figure 1 A schematic side view of a battery box stacking and fixing system in an embodiment;

[0033] Figure 4 A schematic flow chart of a battery box stacking and fixing method according to an embodiment is shown.

[0034] Figure numerals: 10 battery box assembly; 11 battery box body; 12 support plate; 20 first bracket assembly; 21 first bracket unit; 22 second bracket unit; 23 first mounting portion; 24 second mounting portion; 30 second bracket assembly; 31 third bracket unit; 32 fourth bracket unit; 33 third mounting portion; 34 fourth mounting portion. DETAILED DESCRIPTION

[0035] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0036] As used herein, the term "including" and its variants are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like is based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate an orientation or position relationship, some of the above terms may also be used to indicate other meanings, such as the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances. In addition, the terms "install", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0037] In this embodiment, when the existing electric vehicles arrange multiple layers of battery boxes vertically, they first make an overall rectangular frame, and then push the multiple battery boxes into the corresponding installation space in sequence along the horizontal direction. The installation method of pushing the battery boxes makes it difficult to control the gap between the battery boxes, and the rectangular frame is easy to deform, occupying a large space in the vehicle. Therefore, this embodiment discloses a battery box stacking and fixing system. Figure 1 As shown, the battery box stacking and fixing system includes: a plurality of battery box assemblies 10 and a plurality of first bracket assemblies 20 .

[0038] A plurality of battery box assemblies 10 are arranged in sequence along a first direction. There is a gap between two adjacent layers of battery box assemblies 10. The battery box assembly 10 includes a battery box body 11 and a support plate 12. The support plate 12 is detachably connected to the battery box body 11.

[0039] like Figure 2 As shown, the number of first bracket assemblies 20 is less than the number of battery box assemblies 10. Several first bracket assemblies 20 are arranged in sequence along the first direction. The first bracket assemblies 20 and the support plate 12 are staggered in sequence. The first bracket assembly 20 includes two first bracket units 21 and a second bracket unit 22. The second bracket unit 22 is located between the two first bracket units 21. The second bracket unit 22 is fixedly connected to the two first bracket units 21 respectively, and the fixed connection method can be stamping integral molding. The first bracket unit 21 includes a plurality of first support rods. The plurality of first support rods are connected end to end in a wavy shape in sequence along the second direction. The second direction is perpendicular to the first direction. The second bracket unit 22 includes a plurality of second support rods. The plurality of second support rods are connected end to end in a wavy shape in sequence along the second direction. The wavy plurality of first support rods and the plurality of second support rods can form a stable triangular support with the support plate 12 to ensure the structural reliability of the battery box stacking fixing system.

[0040] like Figure 2 As shown, the acute angle formed between the first support rod and the support plate 12 is the first angle. The acute angle formed between the second support rod and the support plate 12 is the second angle. The first angle is greater than the second angle. Since the battery box body 11 is usually in the shape of a rectangular parallelepiped, the second direction is parallel to the length direction of the battery box body 11. This arrangement allows the first bracket assembly 20 to provide greater support force for both ends of the support plate 12, ensuring the stability of the structure when stacked. At the same time, the second bracket unit 22 can reduce the number of splicing of the second support rod, saving materials to reduce costs.

[0041] The first support rod is detachably connected to two adjacent support plates 12. The end of the second support rod facing the first direction is the first mounting portion 23. The end of the second support rod facing away from the first direction is the second mounting portion 24. The first mounting portion 23 is detachably connected to the adjacent support plate 12. The second mounting portion 24 is detachably connected to the adjacent support plate 12. Figure 1 As shown, the two first bracket assemblies 20 may be symmetrically arranged on both sides of the support plate 12 along the width direction.

[0042] Through the above arrangement, the assembly method of multiple battery box assemblies 10 is changed to stacking layer by layer, thereby improving the assembly efficiency. During the stacking process of the battery box assemblies 10, the first direction can be the vertical upward direction, and the second direction can be the horizontal direction. After the stacking is completed, if the battery box assembly 10 has not been loaded into the vehicle, the first direction can be other directions. Figure 3 As shown, the height of the first bracket assembly 20 along the first direction can be greater than the height of the battery box assembly 10 along the first direction, so that after multiple battery box assemblies 10 are stacked, there is a gap between two adjacent battery box assemblies 10, which helps the battery box body 11 to dissipate heat.

[0043] In this embodiment, if Figure 3 As shown, the height of the second bracket unit 22 along the first direction is greater than the height of the first bracket unit 21 along the first direction. Therefore, when the battery box assembly 10 is stacked upward from the first layer, the second bracket unit 22 can be fixed to the adjacent support plate 12 first, and the second bracket unit 22 is extended along the second direction under the gravity of the battery box assembly 10 until the support plate 12 abuts against the first bracket unit 21 and the top of the first bracket unit 21 and the top of the second bracket unit 22 are located in the same horizontal plane and both abut against the upper support plate 12, thereby further improving the tightness of the connection between the support plate 12 and the first bracket assembly 20, and ensuring the stability of the battery box assembly 10 stacked in the lower layers (such as 1-3 layers).

[0044] In this embodiment, if Figure 1 , Figure 2 As shown, the battery box stacking fixing system also includes a plurality of second bracket assemblies 30, and the plurality of second bracket assemblies 30 are arranged in sequence along the first direction. The second bracket assembly 30 is located in the first direction of the first bracket assembly 20. The second bracket assembly 30 and the support plate 12 are staggered in sequence. The second bracket assembly 30 includes two third bracket units 31 and a fourth bracket unit 32. The fourth bracket unit 32 is located between the two third bracket units 31. The fourth bracket unit 32 is fixedly connected to the two third bracket units 31, respectively, and the fixed connection method can be stamping integral molding.

[0045] The third bracket unit 31 includes a plurality of third support rods. The plurality of third support rods are connected end to end in a wave shape. The fourth bracket unit 32 includes a plurality of fourth support rods. The plurality of fourth support rods are connected end to end in a wave shape. The acute angle formed by the third support rod and the support plate 12 is the third angle. The acute angle formed by the fourth support rod and the support plate 12 is the fourth angle. The third angle is greater than the fourth angle. The first angle is greater than the third angle. The second angle is greater than the fourth angle. Thus, the supporting force generated by the first bracket assembly 20 is greater than the supporting force generated by the second bracket assembly 30, thereby ensuring the structural stability of the battery box assembly 10 after stacking and fixing.

[0046] The third support rod is detachably connected to two adjacent support plates 12. The end of the fourth support rod facing the first direction is the third mounting portion 33. The end of the fourth support rod facing away from the first direction is the fourth mounting portion 34. The third mounting portion 33 is detachably connected to the adjacent support plates 12. The fourth mounting portion 34 is detachably connected to the adjacent support plates 12.

[0047] Through the above arrangement, when the battery box assembly 10 is stacked to a higher number of layers, the second bracket assembly 30 can be used for frame support. The third bracket units 31 at both ends of the second bracket assembly 30 are first fixed, and then the fourth bracket unit 32 in the middle is fixed. Priority is given to ensuring the tightness of the locking of the two ends of the second bracket assembly 30, ensuring that the supporting force at both ends of the second bracket assembly 30 is transmitted to the battery box body 11 on the support plate 12, reducing the supporting force load in the middle area, so that the battery box assembly 10 can remain intact even when the number of stacked layers is high. Since the first angle is greater than the third angle. The second angle is greater than the fourth angle, the supporting forces of the first bracket assembly 20 and the second bracket assembly 30 are distributed in a stepped manner, so that the supporting effect of the first bracket assembly 20 located at the lower layer is more stable, achieving the effect of fully utilizing the supporting performance of the bracket material.

[0048] In this embodiment, if Figure 2 As shown, the height of the fourth support rod along the first direction is less than the height of the third support rod along the first direction. As a result, the support plate 12 is preferentially abutted against the third support rod, so that the supporting force at both ends of the second bracket assembly 30 is preferentially transmitted to the battery box assembly 10, ensuring that the battery box assembly 10 at a higher level is stacked stably. And by setting the height difference between the fourth support rod and the third support rod, when the battery box assembly 10 is stacked to a higher level, the fourth mounting portion 34 can be fixed to the adjacent support plate 12 first, and the tightness can be adjusted while fixing the fourth mounting portion 34, so that the third mounting portion 33 is at the same height while allowing a certain size tolerance, so that the stacking of the battery box body 11 at a higher level pays more attention to balance rather than the tightness of the connection, ensuring the stability of the stacking of the battery box assembly 10 at a higher level.

[0049] In this embodiment, if Figure 3 As shown, the gap between two adjacent layers of battery box assemblies 10 decreases successively along the first direction. The battery box body 11 is located in the first direction of the corresponding support plate 12. As a result, the more layers of battery box assemblies 10 are stacked, the smaller the gap between two adjacent layers of battery box assemblies 10 is, so that the shaking caused by the change of the overall center of gravity of the battery box assemblies 10 can be reduced during the stacking process, ensuring that the battery boxes of higher layers are stacked more stably. By first fixing the connection part of the end through the battery box body 11 of the higher layer, the connection gap of the end can be adjusted to be smaller, so that the support of the end is more fitted and more stable.

[0050] In this embodiment, the battery box stacking and fixing system may further include a base. A plurality of battery box assemblies 10 are located in a first direction of the base. The support plate 12 closest to the base is detachably connected to the base. This reduces damage to the support plate 12 during transportation or loading after the battery box assemblies 10 are stacked.

[0051] In this embodiment, a battery box stacking and fixing method is disclosed, and the battery box stacking and fixing method is applied to a battery box stacking and fixing system in any of the above embodiments. Figure 4 As shown, the battery box stacking and fixing method includes:

[0052] Step S10, based on the completion of locking of at least one battery box assembly 10, place the movable first bracket assembly 20 and the movable battery box assembly 10 on the top of the at least one locked battery box assembly 10. Until the movable first bracket assembly 20 is supported between the locked support plate 12 and the movable support plate 12. When the battery box assembly 10 is locked, the battery box body 11 is located vertically above the support plate 12. The battery box assembly 10 can be locked on the bottom bracket. After locking the support plate 12 of the first layer, the movable first bracket assembly 20 can be placed above the locked support plate 12 to facilitate stacking of the battery box assembly 10 of the next layer.

[0053] Step S20 , based on the movable first bracket assembly 20 being supported between the locked support plate 12 and the movable support plate 12 , the movable second bracket unit 22 is locked with the two abutting support plates 12 respectively.

[0054] Step S30 , based on the second bracket unit 22 completing the locking, the movable first bracket unit 21 is locked with the two abutting support plates 12 respectively, and the stacking quantity of the battery box assembly 10 is obtained.

[0055] Step S40: based on the stacking quantity being less than the first threshold, repeating steps S10 to S30 until the stacking quantity is equal to the first threshold.

[0056] Through the above steps, the assembly method of multiple battery box assemblies 10 is transformed into stacking layers, thereby improving assembly efficiency. The wavy first bracket assembly 20 is spliced ​​vertically in sequence to form a triangular stable support with the support plate 12, and because the first angle of the first bracket assembly 20 is greater than the second angle, it provides more support for both ends of the support plate 12, so that the bracket material in the middle of the first bracket assembly 20 can be saved. In the process of stacking the battery box assemblies 10, the second bracket unit 22 is fixed first and then the first bracket unit 21, so as to improve the tightness of the connection between the middle part of the support plate 12 and the second bracket unit 22, and ensure the tightness and stability of the stacking of the bottom battery box assemblies 10.

[0057] In this embodiment, step S20 includes:

[0058] Step S21 , based on the movable first bracket assembly 20 being supported between the locked support plate 12 and the movable support plate 12 , the movable first mounting portion 23 is locked with the support plate 12 abutting against the upper side.

[0059] Step S22 , based on the first mounting portion 23 being locked, the movable second mounting portion 24 is locked with the supporting plate 12 abutting thereunder.

[0060] Through the above steps, the battery box assemblies 10 are stacked in the order of first locking the first mounting portion 23 and then locking the second mounting portion 24. Since the height of the second bracket unit 22 along the first direction is greater than the height of the first bracket unit 21 along the first direction, the second bracket unit 22 can be extended along the second direction under the action of gravity of the battery box assembly 10 until the support plate 12 abuts against the first bracket unit 21, thereby further improving the tightness of the connection between the support plate 12 and the first bracket assembly 20, thereby ensuring the stability of the battery box assemblies 10 stacked in lower layers.

[0061] In this embodiment, the battery box stacking and fixing method may further include:

[0062] Step S50, based on the stacking quantity being equal to the first threshold, placing the movable second bracket assembly 30 and the movable battery box assembly 10 on the top of the locked multiple battery box assemblies 10 until the movable second bracket assembly 30 is supported between the locked support plate 12 and the movable support plate 12.

[0063] Step S60 , based on the movable second bracket assembly 30 being supported between the locked support plate 12 and the movable support plate 12 , the movable third bracket unit 31 is locked with the two abutting support plates 12 respectively.

[0064] Step S70 , based on the third bracket unit 31 being locked, the movable fourth bracket unit 32 is respectively locked with the two abutting support plates 12 , and the stacking quantity of the battery box assembly 10 is obtained.

[0065] Step S80, based on the stacking quantity being less than the second threshold, repeating steps S50 to S70 until the stacking quantity is equal to the second threshold.

[0066] Through the above steps, when the current stacking number of the battery box assembly 10 is equal to the first threshold value and the subsequent stacking number of the battery box assembly 10 is less than or equal to the second threshold value, the second bracket assembly 30 can be used as a support member between two adjacent support plates 12. During the stacking process, the third bracket units 31 at both ends of the support plate 12 are first fixed, and then the fourth bracket unit 32 in the middle is fixed, and priority is given to ensuring the tightness of the locking between the two ends of the support plate 12 and the third bracket unit 31, ensuring the transmission of the supporting force at both ends of the second bracket assembly 30, and reducing the supporting force load of the fourth bracket unit 32, so that the battery box assembly 10 is more stable when stacking higher layers.

[0067] In this embodiment, step S70 includes:

[0068] Step S71 , based on the third bracket unit 31 being locked, the movable fourth mounting portion 34 is locked with the support plate 12 abutting against the upper portion.

[0069] Step S72 , based on the fourth mounting portion 34 completing the locking, the movable third mounting portion 33 is locked with the supporting plate 12 abutting thereunder, and the stacking quantity of the battery box assembly 10 is obtained.

[0070] Through the above steps, since the height of the fourth support rod along the first direction is less than the height of the third support rod along the first direction, the support plate 12 can be preferentially abutted against the third support rod, so that the support force at both ends of the second bracket assembly 30 is preferentially transmitted to the battery box assembly 10, ensuring that the battery box assembly 10 at a higher level is stacked stably. In addition, by setting the height difference between the fourth support rod and the third support rod, when the battery box assembly 10 is stacked to a higher level, after the third bracket unit 31 is locked with the adjacent support plate 12, the fourth mounting portion 34 can be fixed with the adjacent support plate 12 first, and the tightness can be adjusted while fixing the fourth mounting portion 34. After the third mounting portion 33 is at the same height while allowing a certain size tolerance, the third mounting portion 33 can be fixed with the adjacent support plate 12, thereby ensuring the stability of the stacking of the battery box assembly 10 at a higher level.

[0071] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and in actual applications, various changes may be made thereto in form and detail without departing from the scope of the present disclosure.

Claims

1. A battery box stacking and fixing system, characterized in that: The battery box stacking and fixing system comprises: A plurality of battery box assemblies, wherein the plurality of battery box assemblies are arranged in sequence along a first direction; there is a gap between two adjacent layers of the battery box assemblies; the battery box assembly comprises a battery box body and a support plate; the support plate is detachably connected to the battery box body; A plurality of first bracket assemblies, wherein the number of the first bracket assemblies is less than the number of the battery box assemblies; the plurality of the first bracket assemblies are arranged in sequence along the first direction; the first bracket assemblies and the support plates are staggered in sequence; the first bracket assembly includes two first bracket units and a second bracket unit; the second bracket unit is located between the two first bracket units; the second bracket unit is fixedly connected to the two first bracket units respectively; the first bracket unit includes a plurality of first support rods; the plurality of the first support rods are sequentially connected end to end in a wave shape along the second direction; the second direction is perpendicular to the first direction; the second bracket unit includes a plurality of second support rods; the plurality of the second support rods are arranged along the second direction The first support rod and the second support plate are connected end to end in a wave shape; the acute angle formed by the first support rod and the support plate is the first angle; the acute angle formed by the second support rod and the support plate is the second angle; the first angle is greater than the second angle; the first support rod is detachably connected to the two adjacent support plates respectively; the end of the second support rod facing the first direction is the first mounting portion; the end of the second support rod away from the first direction is the second mounting portion; the first mounting portion is detachably connected to the adjacent support plate; the second mounting portion is detachably connected to the adjacent support plate; the height of the second bracket unit along the first direction is greater than the height of the first bracket unit along the first direction.

2. A battery box stacking and fixing system according to claim 1, characterized in that: The battery box stacking and fixing system also includes a plurality of second bracket assemblies, and the plurality of second bracket assemblies are arranged in sequence along the first direction; the second bracket assembly is located in the first direction of the first bracket assembly; the second bracket assembly and the support plate are staggered in sequence; the second bracket assembly includes two third bracket units and a fourth bracket unit; the fourth bracket unit is located between the two third bracket units; the fourth bracket unit is fixedly connected to the two third bracket units respectively; the third bracket unit includes a plurality of third support rods; the plurality of third support rods are connected end to end in sequence in a wave shape; the fourth bracket unit includes a plurality of fourth support rods; the plurality of fourth The support rods are connected end to end in a wave shape; the acute angle formed by the third support rod and the support plate is the third angle; the acute angle formed by the fourth support rod and the support plate is the fourth angle; the third angle is greater than the fourth angle; the first angle is greater than the third angle; the second angle is greater than the fourth angle; the third support rod is detachably connected to the two adjacent support plates respectively; the end of the fourth support rod facing the first direction is the third mounting portion; the end of the fourth support rod away from the first direction is the fourth mounting portion; the third mounting portion is detachably connected to the support plate adjacent to itself; the fourth mounting portion is detachably connected to the support plate adjacent to itself.

3. A battery box stacking and fixing system according to claim 2, characterized in that: A height of the fourth support rod along the first direction is smaller than a height of the third support rod along the first direction.

4. A battery box stacking and fixing system according to claim 3, characterized in that: The gap between two adjacent layers of the battery box assemblies decreases successively along the first direction; the battery box body is located in the first direction of the corresponding support plate.

5. The battery box stacking and fixing system according to claim 1, characterized in that: The battery box stacking and fixing system also includes a base; a plurality of the battery box assemblies are located in the first direction of the base; and the support plate closest to the base is detachably connected to the base.

6. A battery box stacking and fixing method, characterized in that: A battery box stacking and fixing system applied to any one of claims 1-5; The battery box stacking and fixing method comprises: Step S10, based on the completion of locking of at least one battery box assembly, placing an active first bracket assembly and an active battery box assembly on the uppermost of at least one locked battery box assembly; until the active first bracket assembly is supported between the locked support plate and the active support plate; when the battery box assembly is locked, the battery box body is located vertically above the support plate; Step S20, based on the movable first bracket assembly being supported between the locked support plate and the movable support plate, the movable second bracket unit is respectively locked with the two abutting support plates; Step S30, based on the completion of locking of the second bracket unit, the movable first bracket unit is locked with the two abutting support plates respectively, and the stacking quantity of the battery box assembly is obtained; Step S40: based on the stacking quantity being less than a first threshold, repeating steps S10 to S30 until the stacking quantity is equal to the first threshold.

7. A battery box stacking and fixing method according to claim 6, characterized in that: The step S20 comprises: Step S21, based on the movable first bracket assembly being supported between the locked support plate and the movable support plate, the movable first mounting portion is locked with the support plate abutting against the upper side; Step S22: based on the locking of the first mounting portion, the movable second mounting portion is locked with the supporting plate abutting thereunder.

8. A battery box stacking and fixing method according to claim 6, characterized in that: The battery box stacking and fixing method further includes: Step S50, based on the stacking quantity being equal to the first threshold, placing an active second bracket assembly and an active battery box assembly on the top of the locked plurality of battery box assemblies; until the active second bracket assembly is supported between the locked support plate and the active support plate; Step S60, based on the movable second bracket assembly being supported between the locked support plate and the movable support plate, the movable third bracket unit is respectively locked with the two abutting support plates; Step S70, based on the third bracket unit being locked, the movable fourth bracket unit is respectively locked with the two abutting support plates, and the stacking quantity of the battery box assembly is obtained; Step S80, based on the stacking quantity being less than a second threshold, repeating steps S50 to S70; until the stacking quantity is equal to the second threshold.

9. A battery box stacking and fixing method according to claim 8, characterized in that: The step S70 includes: Step S71, based on the third bracket unit completing the locking, the movable fourth mounting portion is locked with the support plate abutting against the upper side; Step S72, based on the locking of the fourth mounting portion, the movable third mounting portion is locked with the support plate abutting thereunder, and the stacking quantity of the battery box assembly is obtained.

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