CN219832849U - Battery pack - Google Patents

Abstract

The utility model relates to the technical field of batteries, and provides a battery pack. The battery pack includes: the battery box comprises a box body, a plurality of batteries and a plugging plate, wherein the box body comprises a frame and a bottom plate, the frame forms an annular structure, the bottom plate seals one side opening of the annular structure, and the bottom plate forms a bottom surface; the plurality of battery stacks are stacked in the box body, and the height of the frame is smaller than that of the battery; at least part of the plugging plate is arranged between the side surfaces of the plurality of batteries and the frame, the height of the plugging plate is larger than that of the frame, and the plugging plate is matched with the box body to form a plugging surface; gaps are formed between the plugging surface and the side surfaces of the plurality of stacked batteries, glue is filled in the gaps, and the glue does not exceed the top surface of the plugging plate. According to the battery pack, through optimizing the structure of the battery pack, when the frame is shorter than the battery, the glue filling requirement in the battery pack can be met, the glue is prevented from overflowing, and the battery in the battery pack can be effectively insulated and sealed.

Description

Battery pack

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery pack.

Background

In the existing battery pack design, the insulation protection problem inside the case is particularly important. One way is to perform a glue filling operation on a plurality of batteries in a battery pack so as to realize insulation protection on the plurality of batteries. In the existing glue filling operation, the frame and the bottom plate of the box body are supported, so that a glue filling area is formed at the periphery of the battery.

However, when the battery is higher than the frame, if the glue filling operation is performed in the battery pack, the glue overflows outwards from the top of the frame when reaching the top of the frame, and the preset glue filling height cannot be reached, so that the battery in the battery pack cannot be effectively insulated and sealed.

Disclosure of Invention

The utility model provides a battery pack, which can meet the glue filling requirement in the battery pack when the frame is shorter than a battery through optimizing the structure of the battery pack, avoid glue overflow and effectively insulate and seal the battery in the battery pack.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

according to a first aspect of the present utility model, there is provided a battery pack comprising a case, a plurality of batteries, and a blocking plate, the case comprising a frame and a bottom plate, the frame forming an annular structure, the bottom plate closing one side opening of the annular structure, and the bottom plate forming a bottom surface; the plurality of cell stacks are stacked in the box body, and the height of the frame is smaller than that of the cells; at least part of the plugging plate is arranged between the side surfaces of the batteries and the frame, the height of the plugging plate is larger than that of the frame, and the plugging plate is matched with the box body to form a plugging surface; gaps are formed between the plugging surface and the side surfaces of the batteries which are stacked, glue is filled in the gaps, and the glue does not exceed the top surface of the plugging plate.

It is to be noted that, the battery pack provided by the utility model makes up at least part of the preset blocking height and the height difference of the frame through the blocking plate, so that the blocking surface is heightened, at least part of the side surfaces of a plurality of stacked batteries is effectively blocked by glue in the gap, the side surfaces of the batteries are effectively sealed by the glue is controlled, and the insulating sealing effect of the glue on the batteries is further improved; meanwhile, the plugging plate replaces a shorter frame to play a plugging role, so that pouring sealant cannot overflow during glue pouring operation, glue can be prevented from overflowing to other areas of the battery pack, adhesion of other devices in the battery pack is avoided, and the product yield of the battery pack can be improved.

Drawings

For a better understanding of the utility model, reference may be made to the embodiments illustrated in the following drawings. The components in the drawings are not necessarily to scale and related elements may be omitted in order to emphasize and clearly illustrate the technical features of the present utility model. In addition, the relevant elements or components may have different arrangements as known in the art. Furthermore, in the drawings, like reference numerals designate identical or similar parts throughout the several views. Wherein:

fig. 1 is a schematic and schematic diagram of a three-dimensional structure of a battery pack according to an embodiment of the present utility model;

fig. 2 is a schematic and schematic diagram of a battery pack according to an embodiment of the present utility model;

FIG. 3 is an enlarged schematic view of the closure plate of FIG. 1;

fig. 4 is a schematic partial perspective view of a battery pack according to an embodiment of the present utility model.

The reference numerals are explained as follows:

100. a case; 110. a frame; 120. a bottom plate; 200. a battery; 300. a plugging plate; 310. a first plate body; 320. a second plate body; 330. reinforcing ribs; 400. a busbar; 500. glue; 600. a heat-conducting adhesive; s, gaps; p1, a first step surface; p2, a second step surface.

Detailed Description

The technical solutions in the exemplary embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the exemplary embodiments of the present utility model. The example embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present utility model, and it should be understood that various modifications and changes can be made to the example embodiments without departing from the scope of the utility model.

In the description of the present utility model, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance unless explicitly specified or limited otherwise; the term "plurality" refers to two or more than two; the term "and/or" includes any and all combinations of one or more of the associated listed items. In particular, references to "the/" object or "an" object are likewise intended to mean one of a possible plurality of such objects.

Unless specified or indicated otherwise, the terms "connected," "fixed," and the like are to be construed broadly and are, for example, capable of being fixedly connected, detachably connected, or integrally connected, electrically connected, or signally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

Further, in the description of the present utility model, it should be understood that the terms "upper", "lower", "inner", "outer", and the like in the exemplary embodiments of the present utility model are described in terms of the drawings, and should not be construed as limiting the exemplary embodiments of the present utility model. It will also be understood that in the context of an element or feature being connected to another element(s) "upper," "lower," or "inner," "outer," it can be directly connected to the other element(s) "upper," "lower," or "inner," "outer," or indirectly connected to the other element(s) "upper," "lower," or "inner," "outer" via intervening elements.

The embodiment of the utility model provides a battery pack. Fig. 1 is a schematic and schematic diagram of a three-dimensional structure of a battery pack according to an embodiment of the present utility model; fig. 2 is a schematic and schematic diagram of a battery pack according to an embodiment of the present utility model; FIG. 3 is an enlarged schematic view of the closure plate of FIG. 1; fig. 4 is a schematic partial perspective view of a battery pack according to an embodiment of the present utility model. Referring to the structure shown in fig. 1 to 4, a battery pack according to an embodiment of the present utility model includes: the battery box comprises a box body 100, a plurality of batteries 200 and a plugging plate 300, wherein the box body 100 comprises a frame 110 and a bottom plate 120, the frame 110 forms an annular structure, the bottom plate 120 closes one side opening of the annular structure, and the bottom plate 120 forms a bottom surface; a plurality of cells 200 are stacked inside the case 100, and the height of the frame 110 is smaller than the height of the cells 200; at least part of the plugging plate 300 is arranged between the side surfaces of the plurality of batteries 200 and the frame 110, the height of the plugging plate 300 is larger than that of the frame 110, and the plugging plate 300 is matched with the box body 100 to form a plugging surface; gaps S are formed between the sealing surfaces and the side surfaces of the plurality of stacked batteries 200, glue 500 is filled in the gaps S, and the glue 500 does not exceed the top surface of the sealing plate 300.

It should be understood that the direction a is formed in the direction in which the plurality of batteries 200 are stacked and the direction b is formed in the direction perpendicular to the bottom plate 120 of the case 100, which is perpendicular to the direction a, as illustrated in fig. 1; the direction of arrangement of the cells 200 and the sealing plate 300 forms a direction c perpendicular to the direction a and the direction b.

In order to clearly illustrate the structure of the battery pack provided by the embodiment of the present utility model, only a part of the frame 110 is shown in fig. 1, and the frame 110 is subjected to perspective processing. Of course, the case 100 also includes other rims 110 (illustratively extending in the direction of the dashed line in fig. 1) to form a ring-shaped structure. Of course, the battery pack provided in the embodiment of the present utility model may be provided with the plugging plates 300 on two opposite sides of the battery along the direction c, and the structures of the two plugging plates 300 are the same or similar, which is not described in detail.

It should be understood that the bottom plate 120 in fig. 1 serves as the bottom of the case 100, and when the structural members such as the battery 200 are placed inside the case 100, the side close to the bottom plate 120 is referred to as "bottom", and the side far from the bottom plate 120 is referred to as "top"; the base plate 120 forms a bottom surface, and each structural member disposed in the case 100 has a height based on the bottom surface, and illustratively, a position farther from the bottom surface in the direction b has a higher height. In addition, the side of the battery 200 facing the frame 110 is referred to as the side of the battery 200, and of course, the battery 200 also has a large face of a large area, which is a stacking face,

specifically, in the battery pack provided by the embodiment of the utility model, a plurality of batteries 200 are stacked and arranged in the box body 100, and a plugging plate 300 is arranged between the batteries 200 and the frame 110 of the box body 100; the blocking plate 300 is higher than the frame 110 to heighten the blocking height of the side surfaces of the plurality of stacked batteries 200, thereby enabling the blocking height of the blocking surfaces to meet the demand. It should be noted that, the sealing plate 300 seals at least a portion of the side surfaces of the plurality of stacked batteries 200, and the glue 500 is poured into the gap S formed between the sealing surface and the side surfaces of the plurality of stacked batteries 200 to a predetermined height, so that the glue 500 covers the side surfaces of the batteries 200 with the predetermined height.

It should be noted that, in the battery pack provided by the embodiment of the present utility model, at least a portion of the preset blocking height and the height difference of the frame 110 is compensated by the blocking plate 300, so that the blocking surface is heightened, so that the glue 500 located in the gap S effectively blocks at least a portion of the side surfaces of the plurality of stacked batteries 200, and the glue 500 is controlled to effectively seal the side surfaces of the plurality of batteries 200, thereby improving the insulating sealing effect of the glue 500 on the batteries 200; meanwhile, as the plugging plate 300 replaces the shorter frame 110 to play a role in plugging, the pouring sealant cannot overflow during the glue pouring operation, so that the glue 500 can be prevented from overflowing to other areas of the battery pack to cause adhesion of other devices in the battery pack, and the product yield of the battery pack can be improved.

It should be appreciated that in direction a, the blocking plate 300 blocks several cells 200. In a specific embodiment, along direction a, a blocking plate 300 may be provided to block the sides of all stacked cells 200 within the battery pack; in another specific embodiment, a blocking plate 300 may be provided to block the sides of the cells 200 disposed in the battery pack in a stacked manner along the direction a. When the plugging plate 300 is specifically arranged, the plugging plate 300 may include one plate body or a plurality of plate bodies, and when the plugging plate 300 includes a plurality of plate bodies, the plurality of plate bodies may be spliced into a whole plugging plate 300 along the direction a, or the plurality of plate bodies may be arranged at intervals to plug the sides of the battery 200 at different positions.

It is noted that the gap S is not closed in the top area and in the area towards the side of the cell 200 to achieve the sealing operation of the glue 500. Thus, the plugging face comprises a body plugging face, two end plugging faces, and a bottom plugging face, wherein: the main body plugging surface is arranged opposite to the side surfaces of the batteries; along the stacking direction of a plurality of batteries, one end sealing surface is connected with one end of the main body sealing surface, and the other end sealing surface is connected with the other end of the main body sealing surface; the bottom blocking surface is connected with the main body blocking surface and the two end blocking surfaces. Wherein, the bottom plugging surface can be formed by the bottom plate 120, the end plugging surface can be independently formed by the plugging plate 300, i.e. each side end of the plugging plate 300 needs to form an L-shaped structure to be matched with the battery 200 to form an effective gap S, and the control glue 500 covers the side surface of the battery 200; alternatively, the end sealing surfaces may be formed by a frame 110 or other structure that mates with the sealing plate 300 to mate with the battery 200 to form an effective gap S, with the control glue 500 covering the sides of the battery 200.

In a specific embodiment, it may be provided that the blocking plate 300 alone forms an L-shaped structure at each side end, which may be entirely disposed at the side of the battery 200 and abutted only with the side of the battery 200, or which may be partially bent to the large face of the battery 200 to form an effective gap S. In another specific embodiment, the blanking panels 300 cooperate with other structures, which may be, for example, the frame 110 or dividing beams, to form end blanking faces at the ends of the gap S in the direction a. Of course, when the frame 110 or the partition beam is shorter than the battery 200, the blocking plate 300 needs to supplement the partial height difference.

Illustratively, when the sides of all the cells 200 stacked in the direction a are plugged, in a specific embodiment, as shown in fig. 1, at least a portion of the plugging plate 300 extends in the direction a to a side of the outermost cell 200 of the plurality of cells 200 stacked in the direction a facing away from the adjacent cell 200 to form at least a portion of the end plugging surface.

In one embodiment, please continue to refer to the structure shown in fig. 1 and 2, the frame 110 is provided with a step structure on the side facing the battery 200; the plugging plate 300 is mounted on the step structure, and the plugging plate 300 and the step structure cooperate to form a partial plugging surface (i.e., a main body plugging surface). In the process of matching the plugging plate 300 with the step structure, the height of the plugging plate 300 is matched with the height of the step structure, so that the top of the plugging surface is not shorter than the preset plugging height, and the plugging requirement is met. This structural arrangement can reasonably utilize the internal space of the battery 200, and effectively seal the sides of the plurality of stacked batteries 200 by the sealing plate 300 cooperating with the existing stepped structure of the frame 110.

In addition, compared with the structure arrangement in which the plugging plate 300 is used only for plugging, when the plugging plate 300 is matched with the step structure, the height of the plugging plate 300 can be set shorter, and the structure form of the plugging plate 300 can be simplified, so that the preparation difficulty and the preparation cost are reduced.

In a specific embodiment, please continue to refer to the structure shown in fig. 1 and 2, the step structure has a first step surface P1 and a second step surface P2, the first step surface P1 faces the battery 200, and the second step surface P2 is located on the side of the frame 110 facing away from the bottom plate 120; the plugging plate 300 is mounted on the second step surface P2, and the plugging plate 300 and the first step surface P1 cooperate to form a partial plugging surface. In the process of matching the plugging plate 300 with the first step surface P1, the height of the plugging plate 300 is matched with the height of the first step surface P1, so that the top of the plugging surface is not shorter than the preset plugging height, and the plugging requirement is met. This structural arrangement can reasonably utilize the internal space of the battery 200, and effectively seal the sides of the plurality of stacked batteries 200 by the sealing plate 300 cooperating with the existing stepped structure of the frame 110.

With continued reference to the structure shown in fig. 2 and 3, the plugging plate 300 includes a first plate body 310 and a second plate body 320, the first plate body 310 is connected with the second plate body 320, and the extending direction of the first plate body 310 is perpendicular to the extending direction of the second plate body 320; the first plate 310 is matched with the first step surface P1 to form a part of blocking surface; the second plate 320 is mounted to the second stepped surface P2. This structure sets up can promote the stability that sets up in the shutoff board 300 of step structure, avoids the shutoff board 300 to take place to shift when the encapsulating operation, and then can promote the shutoff effect.

With continued reference to the structures shown in fig. 2 and 3, the plugging plate 300 provided in the embodiment of the present utility model further includes a reinforcing rib 330, where the reinforcing rib 330 connects the side of the first plate 310 facing away from the battery 200 and the side of the second plate 320 facing away from the second step surface P2. The reinforcing rib 330 can improve the structural stability of the plugging plate 300, and prevent the first plate body 310 from being unable to effectively block the glue 500 and from shifting or deforming during the glue filling operation, thereby improving the glue filling effect.

When the reinforcing ribs 330 are specifically disposed, a plurality of reinforcing ribs 330 may be disposed on the first plate 310 and the second plate 320 at intervals along the direction a, so as to further improve the structural stability of the plugging plate 300.

In one embodiment, with continued reference to the structure shown in fig. 1, 2 and 3, at least a portion of the closure plate 300 extends between the first stepped surface P1 and the cell 200. That is, the sealing plate 300 and at least part of the first step surface P1 are overlapped, so as to avoid overflow of pouring sealant from the joint of the sealing plate 300 and the step structure, and thus, the sealing effect can be improved.

In one embodiment, the length of the occluding plate 300 in its end position is greater than in other positions along direction a.

It should be noted that, the end structural design of the gap S is complex, so as to avoid the glue from overflowing from the end gap in the direction a, the partial plugging plate 300 may further extend downward between the first step surface P1 and the battery 200, so as to improve the plugging effect.

In an embodiment, the plugging plate 300 is detachably connected with the step structure, so that the plugging plate 300 is dismounted in the box body 100 according to requirements, and the assembly and the disassembly operations of the structures such as the battery 200 in the box body 100 are facilitated, so that the assembly and the disassembly difficulty of the battery pack can be reduced, and the efficiency can be improved.

In one embodiment, please continue to refer to the structure shown in fig. 1 and 2, the battery pack provided in the embodiment of the present utility model further includes a bus bar 400, the bus bar 400 is electrically connected to the battery 200, and the bus bar 400 is located on the side of the battery 200 facing the plugging plate 300; the height of the blocking surface is greater than the height of the busbar 400. Each of the bus bars 400 connects adjacent two cells 200 among the plurality of stacked cells 200 to achieve a series/parallel operation between the cells 200 such that the battery pack satisfies energy requirements.

It should be noted that, since the bus bar 400 is disposed on the side of the battery 200, in order to avoid the bus bar 400 from being shorted to the frame 110 or other devices, the bus bar 400 needs to be covered by insulation to ensure that the bus bar 400 can function stably and effectively.

When the plugging plate 300 is specifically disposed, a space is provided between the plugging surface and the busbar 400 along the direction c, so that the glue 500 filled in the gap S can effectively cover the surface of the busbar 400 facing away from the battery 200. Similarly, in the direction b, the glue 500 needs to effectively cover the bus bar 400, that is, the height of the glue 500 is at least greater than the height of the bus bar 400, and since the glue 500 has fluidity, the maximum height that the glue 500 can reach is related to the height of the plugging plate 300, and in this case, the height of the plugging surface needs to be controlled to be greater than the height of the bus bar 400.

When the height of the plugging plate 300 is specifically set, the plugging requirement can be further adjusted. For example, the height of the sealing surface may be set to be greater than the height of the battery 200 so that the glue 500 poured into the gap S seals the entire side of the battery 200.

In a specific embodiment, the blocking plate 300 is flush with the top of the cell 200 on the side facing away from the bottom plate 120, such that the glue 500 completely blocks the sides of the cell 200; in another specific embodiment, the plugging plate 300 is flush beyond the top of the battery 200 on the side facing away from the bottom plate 120, so that the glue 500 plugs the side surface of the battery 200, and even partially extends to the top of the battery 200, so as to ensure that the glue 500 completely plugs the side surface of the battery 200, and avoid the occurrence of non-plugged leakage points, thereby improving the plugging effect.

In an embodiment, please continue to refer to the structure shown in fig. 2 in conjunction with fig. 1, in the battery pack provided by the embodiment of the utility model, the glue 500 is a pouring sealant, and the pouring sealant is filled in the gap S. It should be understood that the glue 500 is selected as the pouring sealant in this embodiment.

The pouring sealant is used for bonding, sealing, encapsulating and coating protection of electronic components. The potting adhesive is liquid before solidification, has fluidity, and can enter the gaps at all positions according to a preset track so as to form a sealing adhesive layer between the battery 200 and the box body 100 and between the sealing board 300 after solidification.

In addition, the cured pouring sealant can play roles of water proofing, moisture proofing, dust proofing, insulation, heat conduction, confidentiality, corrosion resistance, temperature resistance and vibration prevention, and the safety performance of the battery pack provided by the embodiment of the utility model can be further improved.

In an embodiment, please continue to refer to the structure shown in fig. 2 in conjunction with fig. 1, the battery pack provided by the embodiment of the utility model further includes a heat-conducting glue 600, wherein the heat-conducting glue 600 is disposed on a side of the battery 200 facing away from the bottom plate 120, and the heat-conducting glue 600 is connected with a potting adhesive.

It should be noted that, the heat-conducting glue 600 is matched with the pouring sealant to form effective insulation protection on the top and the side of the battery 200, so as to improve the safety performance of the battery, even the battery pack.

In one embodiment, the heat transfer glue 600 forms a plane with the potting adhesive on the side facing away from the top of the cell 200.

It should be noted that, in the battery package was gone into to heat conduction glue 600 later than the pouring sealant, the top of a plurality of batteries 200 that stack the setting can be filled up to this heat conduction glue 600, and this heat conduction glue 600 and pouring sealant cooperation, flush, can make seal structure more firm, and can be convenient for a plurality of batteries 200 that stack the setting are connected with other structures.

For example, the top of the plurality of stacked cells 200 may be provided with a heat exchange plate connected to the top of the plurality of stacked cells 200 by a heat conductive structural adhesive. Specifically, the heat exchange plate can exchange heat with the battery 200, so that heat at the battery 200 is timely led out, the running state of the battery 200 is optimized, and the safety performance of the battery pack is improved. Meanwhile, the heat conductive adhesive 600 has good heat conductive performance, and can improve the heat exchange effect between the heat exchange plate and the battery 200.

A specific assembly method of the battery pack according to the embodiment of the present utility model is provided. Specifically, when the battery pack provided by the embodiment of the utility model is assembled, the pouring sealant is firstly foamed to a cured state, namely an ideal state shown in fig. 4, then the heat-conducting glue 600 is glued on the upper part of the battery 200, and as the glue of the heat-conducting structure is far greater than the pouring sealant (about 75000 ps), the heat-conducting glue 600 is not in a liquid state and can have certain thixotropic property on a glue gluing track, and finally the heat-conducting glue 600 is spread to a required area by pressing through the heat exchange plate.

Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. This utility model is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. The specification and example embodiments are to be considered exemplary only, with a true scope and spirit of the utility model being indicated by the following claims. It is to be understood that the utility model is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.

Claims (16)

1. A battery pack, comprising: the box body comprises a frame and a bottom plate, wherein the frame forms an annular structure, the bottom plate seals an opening at one side of the annular structure, and the bottom plate forms a bottom surface; the plurality of cell stacks are stacked in the box body, and the height of the frame is smaller than that of the cells; at least part of the plugging plate is arranged between the side surfaces of the batteries and the frame, the height of the plugging plate is larger than that of the frame, and the plugging plate is matched with the box body to form a plugging surface; gaps are formed between the plugging surface and the side surfaces of the batteries which are stacked, glue is filled in the gaps, and the glue does not exceed the top surface of the plugging plate.

2. The battery pack according to claim 1, wherein the frame is provided with a stepped structure on a side facing the battery; the plugging plate is arranged on the step structure, and the plugging plate is matched with the step structure to form part of the plugging surface.

3. The battery pack of claim 2, wherein the step structure has a first step surface facing the battery and a second step surface on a side of the frame facing away from the bottom plate; the plugging plate is arranged on the second step surface, and the plugging plate is matched with the first step surface to form part of the plugging surface.

4. The battery pack of claim 3, wherein the blocking plate comprises a first plate body and a second plate body, the first plate body is connected with the second plate body, and the extending direction of the first plate body is perpendicular to the extending direction of the second plate body; the first plate body is matched with the first step surface to form part of the plugging surface; the second plate body is arranged on the second step surface.

5. The battery pack of claim 4, wherein the sealing plate further comprises a stiffener connecting a side of the first plate body facing away from the battery and a side of the second plate body facing away from the second step surface.

6. The battery pack of claim 3, wherein at least a portion of the sealing plate extends between the first step surface and the battery.

7. The battery pack according to claim 6, wherein the blocking plate has an extension length at an end position thereof larger than that at other positions in the stacking direction of the plurality of cells.

8. The battery pack of claim 2, wherein the blocking plate is removably connected to the step structure.

9. The battery pack of any one of claims 1-8, further comprising a buss bar electrically connected to the battery and located on a side of the battery facing the sealing plate; the height of the blocking surface is larger than that of the busbar.

10. The battery pack of claim 9, wherein a gap is provided between the blocking surface and the bus bar in the arrangement direction of the blocking plate and the bus bar.

11. The battery pack of claim 9, wherein the height of the sealing surface is greater than the height of the battery.

12. The battery pack of claim 9, wherein the glue is a potting adhesive, the potting adhesive filling the gap.

13. The battery pack of claim 12, further comprising a heat conductive adhesive disposed on a side of the battery facing away from the bottom plate, the heat conductive adhesive being coupled to the potting adhesive.

14. The battery pack of claim 13, wherein the thermally conductive paste and the potting paste form a plane on a side facing away from the top of the battery.

15. The battery pack of any one of claims 1-8, wherein the plugging surface comprises a body plugging surface, two end plugging surfaces, and a bottom plugging surface, wherein:

the main body plugging surface is arranged opposite to the side surfaces of the batteries;

one end sealing surface is connected with one end of the main sealing surface, and the other end sealing surface is connected with the other end of the main sealing surface along the stacking direction of a plurality of batteries;

the bottom blocking surface is connected with the main body blocking surface and the two end blocking surfaces.

16. The battery pack of claim 15, wherein at least a portion of the sealing plate extends in a stacking direction of a plurality of the cells to a side of an outermost cell of the plurality of cells stacked to face away from an adjacent cell to form at least a portion of the end sealing face.