Battery pack tray, battery pack and electric equipment

Abstract

The utility model discloses a battery pack tray, a battery pack and electric equipment. The battery pack tray comprises a tray main body and a clamping position, wherein the tray main body is provided with an inner bottom surface; the clamping positions are arranged on the inner bottom face of the tray body, and the multiple clamping positions are arranged in the first direction. Each clamping position comprises two clamping grooves which are opposite to each other in the second direction and are arranged at an interval, and the clamping grooves are configured to be used for clamping a battery cell. According to the battery pack tray provided by the embodiment of the invention, the battery cells are fixed in a clamping manner, and the detachability of the battery cells is higher, so that the disassembly, maintenance and replacement of the battery cells are facilitated; and when the battery pack is recycled after being decommissioned, secondary utilization can be realized at the battery core level, so that the cost is reduced, and resources are saved.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage equipment, and more specifically, to a battery pack tray, a battery pack and an electrical device. Background Art

[0002] As my country continues to increase its efforts to promote new energy vehicles, electric vehicles with green and environmentally friendly characteristics have become an inevitable trend in the development of the future automobile industry. They will gradually replace traditional fuel buses and become the daily means of transportation for ordinary people. The power source of electric vehicles is lithium battery packs. As an important component of electric vehicles, the improvement of various performances of lithium battery packs has always been the focus of the industry.

[0003] Since lithium battery packs need to be in working condition for a long time with electric vehicles, and there will be certain vibrations, collisions, and extrusions during the driving process of the vehicle, the cells in the lithium battery pack need to be installed relatively stably in the battery pack tray. In addition, when the battery pack fails and needs to be repaired, the cells can be easily disassembled; in addition, after the battery pack is retired, it is best to achieve secondary use at the cell level to reduce costs and save resources.

[0004] In view of this, a new technical solution needs to be proposed to improve the stability of battery cell installation and the convenience of disassembly. Utility Model Content

[0005] One purpose of the present application is to provide a new technical solution for a battery pack tray, a battery pack and an electrical device.

[0006] According to a first aspect of the present application, a battery pack tray is provided, the battery pack tray comprising:

[0007] A tray body, the tray body having an inner bottom surface;

[0008] The snap-in position is arranged on the inner bottom surface of the tray body, and a plurality of the snap-in positions are arranged along the first direction; and each of the snap-in positions includes two snap-in grooves that are arranged opposite to and spaced apart along the second direction, and the snap-in grooves are configured to snap-in the battery cell.

[0009] Optionally, the battery pack tray includes at least two fixing plates that are opposite to each other and spaced apart along the second direction, and the fixing plates are fixed to the inner bottom surface of the tray body; every two fixing plates cooperate to form the snap-fit ​​position;

[0010] The fixing plate is provided with the clamping groove.

[0011] Optionally, the fixing plate is connected to the tray body by welding or is detachably connected by fasteners.

[0012] Optionally, the two fixing plates that cooperate to form the snap-fit ​​position both protrude toward each other to form a plurality of bosses, the plurality of bosses on each fixing plate are spaced apart along the first direction, and the snap-fit ​​groove is formed between two adjacent bosses along the first direction.

[0013] Optionally, the fixing plate and the boss portion are an integrally formed structure.

[0014] Optionally, along the first direction, a distance between two adjacent engaging positions is 2-3 mm.

[0015] According to a second aspect of the present application, a battery pack is provided, the battery pack comprising the battery pack tray as described in the first aspect, and further comprising a plurality of battery cells, wherein the plurality of battery cells are arranged on the inner bottom surface of the tray body;

[0016] Each of the clamping positions corresponds to a battery cell, and the battery cell is clamped and connected with the two clamping grooves corresponding to the clamping position.

[0017] Optionally, the battery pack further includes an elastic pad, each of the clamping grooves is provided with the elastic pad, and the elastic pad is in contact with the battery cell.

[0018] Optionally, the pole of the battery cell is exposed in the clamping groove.

[0019] According to a third aspect of the present application, an electrical device is provided, wherein the electrical device comprises the battery pack as described in the second aspect.

[0020] The technical solution adopted in this application can achieve the following beneficial effects:

[0021] The battery pack tray provided in the embodiment of the present application uses a snap-on connection to fix the battery cells, and the battery cells are more removable. When one or several battery cells fail, the failed battery cells can be removed from the snap-on slots for repair or replacement without replacing the entire battery pack, thereby reducing maintenance costs. In addition, since the battery cells are fixed by a snap-on connection and are highly removable, the battery cells are not easily damaged during disassembly. Therefore, when the battery pack is recycled after retirement, it can be reused at the battery cell level to reduce costs and save resources.

[0022] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0024] Figure 1a is a schematic structural diagram of a battery pack tray according to an embodiment of the present application;

[0025] Figure 1b yes Figure 1a A magnified schematic diagram of the local structure;

[0026] Figure 2 is a partial structural schematic diagram 1 of a battery pack according to an embodiment of the present application;

[0027] Figure 3 A partial structural diagram of a battery pack according to an embodiment of the present application Figure 2 .

[0028] Description of reference numerals:

[0029] 1. Battery pack tray; 11. Tray body; 111. Bottom wall; 112. Side wall; 100. Snap-in groove; 12. Fixing plate; 13. Boss portion; 2. Battery cell; 20. Post. DETAILED DESCRIPTION

[0030] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0031] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0032] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0033] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0034] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0035] Reference Figure 1a-Figure 3As shown, according to an embodiment of the present application, a battery pack tray 1 is provided. The battery pack tray 1 includes a tray body 11 and a snap-in position, wherein the tray body 11 has an inner bottom surface; the snap-in position is arranged on the inner bottom surface of the tray body 11, and a plurality of snap-in positions are arranged along a first direction; and each snap-in position includes two snap-in grooves 100 arranged opposite to and spaced apart along a second direction, and the snap-in grooves 100 are configured to snap-in a battery cell.

[0036] In the battery pack tray provided in the embodiment of the present application, the snap-in positions provided on the tray body 11 are used to install and fix the battery cells; specifically, each snap-in corresponds to a battery cell, and the battery cell is snap-into two snap-in slots 100 included in the snap-in positions.

[0037] Compared with the fixing method in the prior art that uses a large amount of structural adhesive to directly bond the battery cell to the battery pack tray, the snap-on fixing method is more convenient to assemble, and the snap-on groove 100 can provide good support and fixing for the battery cell. In addition, compared with the fixing method in the prior art that uses a large amount of structural adhesive to directly bond the battery cell to the battery pack tray, the snap-on fixing method is more removable; when one or several battery cells fail, the failed battery cells can be removed from the snap-on groove 100 for repair or replacement without replacing the entire battery pack, thereby reducing the repair cost; in addition, since the battery cell is fixed by snap-on connection and has strong removability, it is not easy to damage the battery cell during disassembly, so when the battery pack is recycled after retirement, it can be reused at the battery cell level to reduce costs and save resources.

[0038] Reference Figure 1a , Figure 2 The direction a shown is the first direction, and the direction b is the second direction.

[0039] Reference Figure 1a As shown, in one embodiment, the battery pack tray includes at least two fixing plates 12 that are opposite to each other and spaced apart along the second direction, and the fixing plates 12 are fixed to the inner bottom surface of the tray body 11; every two of the fixing plates 12 cooperate to form the snap-in position; and the fixing plates 12 are provided with the snap-in grooves 100.

[0040] In this specific example, a fixing plate 12 is provided on the tray body 11 , and a snap-in position is formed on the fixing plate 12 ; specifically, every two fixing plates 12 that are opposite and spaced apart along the second direction cooperate to form the snap-in position, and each fixing plate 12 is provided with a snap-in groove 100 .

[0041] Optionally, the tray body 11 includes a bottom wall 111 and a side wall 112 that are connected to each other. The side wall 112 is arranged around the bottom wall 111 at the edge of the bottom wall 111. The bottom wall 111 and the side wall 112 together enclose a storage space for accommodating and setting the fixing plate 12 and the battery cell. The inner bottom surface of the tray body 11 refers to the surface of the bottom wall 111 facing the storage space. A plurality of battery cells are arranged along a first direction to form a battery cell group, and the number of the fixing plates 12 matches the number of the battery cell groups. For example, two battery cell groups are arranged along a second direction in the tray body 11, and a total of four fixing plates 12 are arranged along the second direction, and each two fixing plates 12 correspond to a battery cell group. The two fixing plates 12 cooperate to form a snap-in position to snap-in the battery cell together.

[0042] In one embodiment, the fixing plate 12 is connected to the tray body 11 by welding or detachably connected by fasteners.

[0043] In this specific example, the fixing plate 12 and the pallet body 11 can be connected by welding, so that the connection between the two is very strong; the fixing plate 12 and the pallet body 11 can also be detachably connected by fasteners such as bolts, so that the fixing plate 12 can be replaced when it is damaged.

[0044] Reference Figure 1a , Figure 1b As shown, in one embodiment, the two fixing plates 12 that cooperate to form the clamping position are both protruded toward each other to form a plurality of bosses 13, and the plurality of bosses 13 on each fixing plate 12 are arranged at intervals along the first direction, and the clamping groove 100 is formed between two adjacent bosses 13 arranged along the first direction. Optionally, the fixing plate 12 and the bosses 13 are an integrally formed structure.

[0045] For example, the fixing plate 12 and the boss portion 13 are formed on a thicker plate by a cutting process, which eliminates the step of fixing the fixing plate 12 and the boss portion 13, and the forming process of the snap-in groove 100 is relatively simple; and there is no need to worry about the fixing plate 12 and the boss portion 13 being loose, thereby providing a more reliable fixing effect for the battery cell.

[0046] In one embodiment, along the first direction, the distance between two adjacent engaging positions is 2-3 mm.

[0047] In this specific example, the spacing between two adjacent snap-in positions is 2 to 3 mm, which can ensure that multiple cells included in the same cell group maintain an appropriate distance. Specifically, in the embodiment of forming the snap-in groove 100 by providing a boss portion 13, the thickness of each boss portion 13 is set to 2 to 3 mm to form the spacing between the snap-in positions.

[0048] Reference Figure 2-Figure 3 As shown, according to another embodiment of the present application, a battery pack is provided, the battery pack comprising the battery pack tray 1 as described above, and further comprising a plurality of battery cells 2, wherein the plurality of battery cells 2 are arranged at the inner bottom surface of the tray body 11;

[0049] Each of the clamping positions corresponds to a battery cell 2 , and the battery cell 2 is clamped and connected with the two clamping slots 100 corresponding to the clamping position.

[0050] In the battery pack provided in the embodiment of the present application, a plurality of battery cells 2 are arranged along the first direction to form a battery cell group. A battery pack may include a single battery cell group or more than two battery cell groups. In a battery cell group, the two outermost battery cells 2 are respectively fitted with the side walls 112 of the tray body 11. In addition, the length of the battery cell 2 is adapted to the distance between the two fixing plates 12 that cooperate to form a snap-fit ​​position, and the two end faces of each battery cell 2 are snap-fitted into the corresponding snap-fit ​​groove 100, and the thickness of the battery cell 2 is adapted to the width of the snap-fit ​​groove 100.

[0051] The battery cells in the battery pack provided in the embodiment of the present application are relatively convenient to install and disassemble. When a battery cell fails, it can be disassembled and repaired, thereby reducing the repair cost. When the battery pack is recycled after retirement, it can be reused at the battery cell level to reduce costs and save resources.

[0052] In one embodiment, the battery pack further includes an elastic pad, and each of the clamping grooves 100 is provided with the elastic pad, and the elastic pad is in contact with the battery cell 2 .

[0053] In this specific example, the elastic pad laid in the snap-in slot 100 can fill the gap between the battery cell 2 and the snap-in slot 100, thereby providing good protection for the battery cell 2, and the battery cell 2 is not easy to shake when the battery pack vibrates or collides. Optionally, the elastic pad can be made of soft materials such as silicone or sponge; the thickness of the elastic pad is determined according to the gap between the battery cell 2 and the snap-in slot 100. In addition, a small amount of structural glue can be used between the battery cell 2, the elastic pad and the snap-in slot 100. A small amount of structural glue can not only further enhance the fixing effect of the single battery cell 2, but also prevent the single battery cell 2 from shaking under extreme working conditions, and achieve complete fixation of the battery cell 2; and a small amount of structural glue will not cause difficulties in the disassembly of the battery cell 2.

[0054] Reference Figure 3 As shown, in one embodiment, the pole 20 of the battery cell 2 is exposed outside the clamping groove 100 .

[0055] In this specific example, since the poles 20 of the battery cell 2 need to be electrically connected, the height of the fixing plate 12 and the clamping groove 100 should be lower than the height of the battery cell 2 to avoid blocking the positive and negative poles of the battery cell 2 and affecting the electrical connection between the battery cells 2.

[0056] According to another embodiment of the present application, an electric device is provided, wherein the electric device comprises the battery pack as described above. The electric device may be, for example, an electric vehicle.

[0057] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0058] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A battery pack tray, characterized in that: include: A tray body (11), wherein the tray body (11) has an inner bottom surface; A snap-in position, the snap-in position being arranged on the inner bottom surface of the tray body (11), and a plurality of the snap-in positions being arranged along a first direction; and each of the snap-in positions comprises two snap-in grooves (100) arranged opposite to each other and spaced apart along a second direction, the snap-in grooves (100) being configured to snap-in a battery cell.

2. The battery pack tray according to claim 1, characterized in that: The battery pack tray comprises at least two fixing plates (12) which are arranged opposite to each other and spaced apart in a second direction, and the fixing plates (12) are fixed to the inner bottom surface of the tray body (11); every two fixing plates (12) cooperate to form the snap-fit ​​position; The fixing plate (12) is provided with the clamping groove (100).

3. The battery pack tray according to claim 2, characterized in that: The fixing plate (12) and the tray body (11) are connected by welding or detachably connected by fasteners.

4. The battery pack tray according to claim 2, characterized in that: The two fixing plates (12) that cooperate to form the snap-fit ​​position both protrude toward each other to form a plurality of boss portions (13); the plurality of boss portions (13) on each fixing plate (12) are arranged at intervals along a first direction; and the snap-fit ​​groove (100) is formed between two adjacent boss portions (13) arranged along the first direction.

5. The battery pack tray according to claim 4, characterized in that: The fixing plate (12) and the boss portion (13) are an integrally formed structure.

6. The battery pack tray according to claim 1, characterized in that: Along the first direction, the distance between two adjacent engaging positions is 2-3 mm.

7. A battery pack, characterized in that: The battery pack comprises a battery pack tray (1) according to any one of claims 1 to 6, and further comprises a plurality of battery cells (2), wherein the plurality of battery cells (2) are arranged on the inner bottom surface of the tray body (11); Each of the clamping positions is provided with a corresponding battery core (2), and the battery core (2) is clamped and connected with two clamping grooves (100) corresponding to the clamping position.

8. The battery pack according to claim 7, characterized in that: The battery pack also includes an elastic pad, and each of the clamping grooves (100) is provided with the elastic pad, and the elastic pad is in contact with the battery core (2).

9. The battery pack according to claim 7, characterized in that: The pole of the battery cell (2) is exposed in the clamping groove (100).

10. An electrical device, characterized in that: The electrical device comprises a battery pack as described in any one of claims 7 to 9.

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