Battery pack and electric scooter

Abstract

The utility model provides a battery pack and an electric scooter, and relates to the technical field of scooters. The battery pack provided by the utility model can comprise a battery cell, a battery cell bracket, a circuit board, at least one busbar and a protection plate, wherein the battery cell support is provided with a containing space for containing the battery cell, the battery cell support is provided with a containing space, and at least part of the battery cell is located in the containing space. And each busbar is used for electrically connecting the battery cell with the circuit board. The protection plate is connected with the circuit board and the battery cell bracket through fasteners, and the protection plate is positioned on one side, far away from the battery cell bracket, of the circuit board and covers the circuit board. According to the battery pack disclosed by the utility model, the protective plate is fixedly connected with the battery cell bracket, and when the protective plate is subjected to external force, the acting force is transmitted to the battery cell bracket through the fastener, so that the circuit board is protected, and the influence on the service life of the battery pack due to short circuit, damage or breakage of the circuit board in the use process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of scooter, in particular to a battery pack and electric scooter. BACKGROUND

[0002] Battery pack as the power source of electric scooter, its performance is vital to the use of electric scooter. The structure of battery pack generally includes battery body and circuit board, and the circuit board is generally arranged at one side of the battery body, and then the battery body and the circuit board are packaged as a whole. At present, the battery pack in the electric scooter generally adopts soft package shell for waterproof. Because the soft package shell is soft and has no certain rigidity, the circuit board inside the battery pack is easy to be short-circuited, damaged or broken due to external stress in the process of using the electric scooter. In the existing battery pack, in order to protect the circuit board, a protection plate is generally arranged, and a supporting layer is arranged in the protection plate, and the supporting layer is made of soft material. And there is no rigid support between the protection plate and the supporting layer and the cell support, when the protection plate is subjected to external pressure, the protection plate is easy to deform, extrude the internal supporting layer, and the supporting layer extrudes the circuit board, causing the circuit board to be damaged. SUMMARY

[0003] One object of the first aspect of the utility model is to solve the problem that the circuit board is easy to be damaged due to external stress in the prior art.

[0004] Another object of the first aspect of the utility model is to solve the problem that the waterproof performance of the battery pack is poor in the prior art.

[0005] In particular, the utility model provides a battery pack, which comprises:

[0006] At least one cell;

[0007] A cell support having an accommodation space, wherein the cell is at least partially located in the accommodation space;

[0008] A circuit board;

[0009] At least one busbar, each busbar electrically connecting the cell and the circuit board; and

[0010] A protection plate connected with the circuit board and the cell support through fasteners, wherein the protection plate is located on the side of the circuit board away from the cell support and covers the circuit board.

[0011] Optionally, at least one first through hole is arranged on the protection plate, the circuit board is provided with a second through hole at the position corresponding to each first through hole, and the fasteners are connected at the cell support after penetrating through the first through hole and the second through hole to connect the protection plate, the circuit board and the cell support.

[0012] Optionally, at least one groove is arranged on the protection plate, and each groove is recessed towards the circuit board.

[0013] Optionally, the first through hole is arranged at a position close to the outer periphery of the protection plate.

[0014] Optionally, a protrusion is arranged on a side of the protection plate close to the circuit board, and the protrusion extends from the protection plate towards the circuit board, and the protrusion is not in contact with the circuit board in a non-stressed state.

[0015] Optionally, the density of the protrusion arranged at a middle position of the protection plate is greater than the density of the protrusion arranged at a peripheral position.

[0016] Optionally, the protrusion comprises a reinforcing rib and a supporting rib, and the size of the supporting rib in a first preset direction is greater than the size of the reinforcing rib in the first preset direction, wherein the first preset direction is the thickness direction of the protection plate.

[0017] Optionally, the protrusion is selected from one or more combinations of a point-shaped protrusion, a strip-shaped protrusion, a block-shaped protrusion or a grid-shaped protrusion.

[0018] Optionally, the cell holder is provided with a first notch arranged at one end of the cell holder in a second preset direction, a rubber plug is arranged at the first notch, and one end of the protection plate is further provided with a limiting plate matched with the first notch, and the limiting plate covers at least part of the position of the first notch, wherein the second preset direction is the length direction of the protection plate.

[0019] Optionally, at least one second notch is arranged on both sides of the cell holder in a third preset direction, the edge of the protection plate is provided with a protrusion matched with the second notch, and the protrusion covers at least part of the position of the second notch, wherein the third preset direction is the direction in which the axis of the cell extends.

[0020] Optionally, the outer edge of each protrusion is chamfered, and the outer edge of the protrusion does not exceed the outer surface of the cell holder.

[0021] Optionally, an insulating protective layer is further included, and the insulating protective layer covers the cell holder, the bus bar and the protection plate.

[0022] The insulating protective layer arranged outside the cell holder, the bus bar and the protection plate can waterproof, insulate and prevent friction of the cell, the circuit board and the bus bar, and avoid short circuit of the battery pack in the production process.

[0023] Optionally, the insulating protective layer comprises:

[0024] A first protective layer at least partially covers both sides of the third preset direction of the battery cell support;

[0025] A second protective layer at least partially covers the first protective layer, the battery cell support and the protective plate;

[0026] A third protective layer at least partially covers both ends of the second preset direction of the battery cell support outside the second protective layer.

[0027] In particular, the utility model further provides a kind of electric scooter, including at least one described battery pack.

[0028] The battery pack of the present application can include battery cells, battery cell supports, circuit boards, at least one busbar and protective plates. The protective plate is fixedly connected with the circuit board and the battery cell support by fasteners, so that the protective plate transmits the external force to the battery cell support through the fasteners when it is subjected to the external force, thereby ensuring the stiffness of the protective plate. The protective plate is used to protect the circuit board, preventing short circuit, damage or breakage of the circuit board during use due to external pressure, which affects the service life of the battery pack.

[0029] The protective plate of the present application is provided with a groove, and the first through hole is arranged in the groove. The fastener passes through the first through hole in the groove and then connects with the circuit board and the battery cell support. The groove can make the fastener not protrude from the outer surface of the protective plate, and on the other hand, a support structure (formed by the groove) is formed between the circuit board and the protective plate, leaving a certain space for the components on the circuit board.

[0030] The present application provides a protrusion on the side of the protective plate close to the circuit board, which can increase the strength and rigidity of the protective plate, thereby better protecting the circuit board.

[0031] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of the specific embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0032] Some specific embodiments of the present application will be described in detail below with reference to the accompanying drawings, which are exemplary and non-limiting. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0033] Figure 1 is a schematic structural diagram of a battery pack according to one specific embodiment of the present application;

[0034] Figure 2 is an internal structure exploded view of the battery pack according to one specific embodiment of the present application;

[0035] Figure 3 is a partial structure schematic view of the battery pack according to one specific embodiment of the present application;

[0036] Figure 4 is a schematic structure view of one angle of the protection plate according to Figure 3 is a sectional view after being cut along the cutting line A-A of the battery pack of

[0037] Figure 5 is a partial enlarged view of Figure 4

[0038] Figure 6 is a schematic structure view of another angle of the protection plate according to one specific embodiment of the present application;

[0039] Figure 7 is a partial exploded view of the battery pack according to one specific embodiment of the present application;

[0040] Figure 8 is a schematic structure view of another angle of the protection plate according to one specific embodiment of the present application;

[0041] Figure 9 is a partial exploded view of the battery pack according to one specific embodiment of the present application.

[0042] BRIEF DESCRIPTION OF DRAWINGS

[0043] Battery pack - 100; battery cell - 110; battery cell support - 120; through hole - 121; second notch - 122; first notch - 123; first support - 124; second support - 125; circuit board - 130; second through hole 131; bus bar - 140; protection plate - 150; protrusion - 151; reinforcing rib - 152; support rib - 153; limiting plate - 154; protruding block - 155; first through hole 156; groove - 157; rubber plug - 160; insulation protection layer - 170; first protection layer - 171; second protection layer - 172; fastener - 180. DETAILED DESCRIPTION

[0044] ​In the description of the present embodiment, it needs to be understood that the terms "length", "width", "height", "upper", "lower", "left", "right", "vertical", "horizontal", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model.

[0045] As a specific embodiment of the present utility model, as shown in the drawings, Figures 1-5 The present embodiment provides a battery pack 100, which can include a battery cell 110, a battery cell support 120, a circuit board 130, at least one bus bar 140 and a protection plate 150. Wherein the battery cell support 120 has an accommodation space,

[0046] The battery cell 110 is at least partially located in the accommodation space. The circuit board 130 is connected with the battery cell support 120, and each bus bar 140 electrically connects the end of the battery cell 110 with the circuit board 130. The protection plate 150 is connected with the circuit board and the battery cell support through fasteners, and the protection plate 150 is located on the side of the circuit board 130 away from the battery cell support 120 and covers the circuit board 130.

[0047] Specifically, the battery pack 100 of the present embodiment can include a battery cell 110, a battery cell support 120, a circuit board 130, at least one bus bar 140 and a protection plate 150. The protection plate 150 is fixedly connected with the circuit board 130 and the battery cell support 120 through fasteners, so that the protection plate transmits the external force to the battery cell support 120 through the fasteners 180 when the protection plate is subjected to the external force, thereby ensuring the rigidity of the protection plate 150, protecting the circuit board 130 by using the protection plate 150, avoiding short circuit, damage or breakage of the circuit board 130 due to external pressure in the process of use, and affecting the service life of the battery pack 100.

[0048] Specifically, the battery cell support 120 of the present embodiment has at least one through hole 121 communicating the accommodation space with the outside of the battery cell support 120, and the circuit board 130 is located on the side of the third predetermined direction x parallel to the battery cell support 120. Wherein the third predetermined direction x is parallel to the axis of the battery cell 110.

[0049] As a specific embodiment of the present utility model, as shown in the drawings, Figures 3-5 The protection plate 150 of the present embodiment is provided with at least one first through hole 156, the circuit board 130 is provided with a second through hole 131 at the position corresponding to each first through hole 156, and the fastener 180 is connected at the battery cell support 120 after passing through the first through hole 156 and the second through hole 131 to connect the protection plate 150, the circuit board 130 and the battery cell support 120.

[0050] Specifically, the first through hole 156 and the second through hole 131 are arranged at the protection plate 150 and the circuit board 130 respectively in the embodiment, and then the fastener 180 is connected with the battery cell support 120 by penetrating the first through hole 156 and the second through hole 131, so that the protection plate 150 and the circuit board 130 can be connected with the battery cell support 120, and the deformation of the protection plate 150 and the circuit board 130 caused by the fastener 180 directly fastened from the protection plate 150 and the circuit board 130 is avoided.

[0051] As a specific embodiment of the utility model, as shown in the drawings, Figures 3-5 The protection plate 150 of the embodiment is provided with at least one recess 157 recessed towards the circuit board 130, and at least one first through hole 156 is arranged in each recess 157. Specifically, the recess 157 is arranged on the protection plate 150 of the embodiment, and the first through hole 156 is arranged in the recess 157, so that finally the fastener 180 penetrates the first through hole 156 in the recess 157 and is then connected with the circuit board 130 and the battery cell support 120. The recess 157 is arranged on one hand to make the fastener 180 not protrude from the outer surface of the protection plate 150, and on the other hand to form a support structure (a structure formed by the recess) between the circuit board 130 and the protection plate 150 and leave a certain space for the device on the circuit board 130 to avoid.

[0052] More specifically, as shown in the drawings, Figures 3-5 The first through hole 156 of the embodiment is arranged at a position close to the outer periphery of the protection plate 150.

[0053] Specifically, the position of the recess 157 is also at a position close to the outer periphery of the protection plate 150. Preferably, a plurality of recesses 157 are arranged at a position around the outer periphery of the protection plate 150, and at least one first through hole 156 is arranged in each recess 157, so that the rigidity of the protection plate 150 can be ensured, and the damage of the circuit board 130 caused by the deformation of the protection plate 150 under external force can be avoided. As a specific embodiment of the utility model, as shown in the drawings, Figure 6 The protection plate 150 of the embodiment is provided with a protrusion 151 close to the circuit board 130, and the protrusion 151 extends from the protection plate 150 to the circuit board 130. In the non-stressed state of the protection plate 150, the protrusion 151 does not contact the circuit board 130.

[0054] Specifically, the protrusions 151 are arranged on the side of the protection plate 150 close to the circuit board 130, so that the strength and rigidity of the protection plate 150 are increased, and the circuit board 130 is better protected. Specifically, the density, size or number of the protrusions 151 at the middle position of the protection plate 150 are greater than those at the edge position, so that the strength and rigidity of the middle position of the protection plate 150 are increased, the middle position of the protection plate 150 is prevented from being deformed under stress, and the circuit board 130 is prevented from being damaged.

[0055] As a specific embodiment of the utility model, the protrusions 151 can include the reinforcing ribs 152 and the supporting ribs 153, and the size of the supporting ribs 153 in the first preset direction y is greater than the size of the reinforcing ribs 152 in the first preset direction y. The first preset direction y is the thickness direction of the protection plate 150.

[0056] Specifically, the protrusions 151 can include the reinforcing ribs 152 and the supporting ribs 153, and the reinforcing ribs 152 and the supporting ribs 153 can both play a role in strengthening the rigidity of the protection plate 150. However, the main functions of the reinforcing ribs 152 and the supporting ribs 153 are different. The reinforcing ribs 152 mainly play a role in strengthening the rigidity of the protection plate 150, and the supporting ribs 153 mainly play a role in supporting the protection plate 150. Specifically, the size of the supporting ribs 153 in the first preset direction y is greater than the size of the reinforcing ribs 152. When the protection plate 150 and the circuit board 130 are both installed on the battery cell support 120, and in the non-receiving state, the supporting ribs 153 and the reinforcing ribs 152 are both not in contact with the circuit board 130. The structure and shape of the supporting ribs 153 are affected by the position of the electronic device on the circuit board 130, and the electronic device is arranged on the side of the supporting ribs 153.

[0057] As a specific embodiment of the utility model, the protrusions 151 can be one or more combinations of point protrusions, strip protrusions, block protrusions or grid protrusions. Specifically, the structure and direction of the protrusions 151 are designed according to actual conditions. The protrusions 151 in the embodiment are grid protrusions, and specifically are honeycomb protrusions.

[0058] As a specific embodiment of the utility model, as shown in Figure 7 and Figure 8 The battery cell support 120 is provided with a second notch 122, and the second notch 122 is arranged at one end of the battery cell support 120 in the second preset direction z. The rubber plug 160 is arranged at the second notch 122. One end of the protection plate 150 is also provided with a limiting plate matched with the second notch 122, and the limiting plate covers at least part of the position of the second notch 122. The second preset direction z is the length direction of the protection plate 150.

[0059] Specifically, the second notch 122 is arranged at one end of the battery cell support 120 in the second preset direction z, and a rubber plug 160 is arranged at the second notch 122, which is mainly used for concentrating and outputting electric wires for connecting the circuit board 130 and external components. Since the rubber plug 160 is arranged at the second notch 122, an opening is further arranged above. One end of the protection plate 150 is provided with a limiting plate 154 matched with the second notch 122. After the limiting plate 154 is arranged at the second notch 122, the rubber plug 160 is limited, and the opening above the second notch 122 is blocked, thereby increasing the waterproof performance. Further, in order to ensure the waterproof performance at this position, the limiting plate 154 and the rubber plug 160 can be sealed by using sealing glue after being arranged at the second notch 122.

[0060] As a specific embodiment of the utility model, as shown in Figure 7 and Figure 8 The battery cell support 120 of the embodiment is provided with at least one first notch 123 on both sides in the third preset direction x. The edge of the protection plate 150 is provided with a protrusion 155 matched with the first notch 123. The protrusion 155 covers at least part of the position of the first notch 123.

[0061] Specifically, the first notch 123 is arranged at both sides of the battery cell support 120 in the third preset direction x, and the main purpose of the first notch 123 is to enable the busbar 140 to electrically connect the end of the battery cell 110 and the circuit board 130.

[0062] The embodiment is provided with the protrusion 155 matched with the first notch 123 at the edge of the protection plate 150, and the protrusion 155 covers the first notch 123. By the mutual cooperation of the protrusion 155 and the battery cell support, the force on the protection plate is transmitted to the battery cell support 120 through the protrusion 155, and then the protection plate 150 is supported by the battery cell support 120, thereby avoiding that the force on the protection plate 150 is directly transmitted to the circuit board 130 to cause the circuit board 130 to be deformed under stress.

[0063] In addition, due to the existence of the first notch 123, the height difference between the battery cell support 120 and the first notch 123 is easy to cause damage to the subsequent packaging soft film. The embodiment is provided with the protrusion 155 matched with the first notch 123 at the edge of the protection plate 150, and the protrusion 155 covers the first notch 123, thereby reducing the damage to the subsequent packaging soft film.

[0064] As a specific embodiment of the utility model, the outer edge of each protrusion 155 is chamfered, and the outer edge of the protrusion 155 does not exceed the outer surface of the battery cell support 120.

[0065] Specifically, the outer edge of the protrusion 155 is chamfered, which can further reduce the damage of the outer edge of the protrusion 155 to the soft film package. In addition, the outer edge of the protrusion 155 does not exceed the outer surface of the battery cell support 120, so as to avoid the protrusion 155 protruding from the outer surface of the battery cell support 120 to cause damage to the soft film package. Preferably, the outer edge of the protrusion 155 is in the same plane as the outer surface of the battery cell support 120.

[0066] As a specific embodiment of the utility model, the battery cell support 120 of the embodiment can include a first support 124 and a second support 125, and the first support 124 and the second support 125 are buckled to each other to form an accommodating space.

[0067] As a specific embodiment of the utility model, as shown in Figure 9 The battery pack 100 of the embodiment can further include an insulating protective layer 170, and the insulating protective layer 170 covers the battery cell support 120, the bus bar 140 and the protective plate 150.

[0068] Specifically, the insulating protective layer 170 is arranged outside the battery cell support 120, the bus bar 140 and the protective plate 150, which can waterproof, insulate and prevent friction of the battery cell 110, the circuit board 130 and the bus bar 140, and avoid short circuit of the battery pack 100 in the production process.

[0069] As a specific embodiment of the utility model, the insulating protective layer 170 of the embodiment can include a first protective layer 171, and the first protective layer 171 at least partially covers the positions of the two sides of the third preset direction x of the battery cell support 120.

[0070] Specifically, the first protective layer 171 of the embodiment can be highland barley paper, which mainly plays an insulating role to prevent the current of the bus bar 140 from being conducted with the external current.

[0071] As a specific embodiment of the utility model, the insulating protective layer 170 of the embodiment can further include a second protective layer 172, and the second protective layer 172 at least partially covers the outside of the first protective layer 171, the battery cell support 120 and the protective plate 150.

[0072] Specifically, the second protective layer 172 of the embodiment can be a thermoplastic sleeve, which can shrink under heating to cover the internal structure and isolate the internal structure from the outside, thereby playing a waterproof function.

[0073] As a specific embodiment of the utility model, the insulating protective layer 170 of the embodiment can further include a third protective layer 173, and the third protective layer 173 at least partially covers the outside of the second protective layer 172 and is located at the positions of the two ends of the second preset direction z of the battery cell support 120.

[0074] Specifically, the third protective layer 173 of the embodiment can be waterproof foam. The third protective layer 173 can be partially covered outside the second protective layer 172 and located at both ends to jointly play a waterproof role with the second protective layer 172.

[0075] As one specific embodiment of the utility model, the specific structure and connection relationship of the battery pack 100 of the embodiment are as follows:

[0076] The cell support 120 of the embodiment is formed by mutual buckling of the first support 124 and the second support 125. The first support 124 and the second support 125 are both provided with a through hole 121. After the cell 110 is installed in the accommodation space, the end of the cell 110 is located at the through hole 121, and the end of the cell 110 is in communication with the outside. The circuit board 130 is connected above the cell support 120. The busbar 140 is arranged outside the through hole 121 of each cell support 120, and the busbar 140 extends to the circuit board 130 after passing through the first notch 123 from the end of the cell 110. The left side of the first support 124 and the second support 125 is provided with an L-shaped gap, and after the first support 124 and the second support 125 are buckled, the two gaps are combined to form a second notch 122. The wire is led out from the circuit board 130, passes through the rubber plug 160, and then the rubber plug 160 is clamped at the second notch 122. Then the protection plate 150 is connected with the cell support 120, the limiting plate 154 is clamped at the second notch 122, and the rubber plug 160 is limited. After the protection plate 150 is connected with the cell support 120, the protrusions on the front and rear sides of the protection plate 150 extend to the first notch 123. A layer of highland barley paper (i.e., the first protective layer 171) is covered on the front and rear sides of the cell support 120 with the busbar 140. A layer of thermoplastic sleeve film (i.e., the second protective layer 172) is arranged outside the entire cell support 120, the circuit board 130, the protection plate 150 and the first protective layer 171. Then a layer of waterproof foam is arranged on the left and right sides of the thermoplastic sleeve film. In this way, a complete battery pack 100 is formed.

[0077] As one specific embodiment of the utility model, the embodiment provides an electric scooter. The electric scooter can include at least one of the above battery pack 100.

[0078] At this point, those skilled in the art should realize that although the utility model has been shown and described in detail herein, many other variants or modifications conforming to the principles of the utility model can be directly determined or deduced according to the disclosure of the utility model without departing from the spirit and scope of the utility model. Therefore, the scope of the utility model should be understood and recognized as covering all these other variants or modifications.

Claims

1. A battery pack, characterized in that, include: At least one battery cell; A cell support having a receiving space, wherein the cell is at least partially located within the receiving space; Circuit board; At least one bus, each bus electrically connecting the battery cell to the circuit board; and A protection board, which is connected to the circuit board and the cell support by fasteners, is located on the side of the circuit board away from the cell support and covers the circuit board.

2. The battery pack according to claim 1, characterized in that, The protection plate is provided with at least one first through hole, and the circuit board is provided with a second through hole at a position corresponding to each of the first through holes. The fastener passes through the first through hole and the second through hole and is connected to the cell bracket to connect the protection plate, the circuit board and the cell bracket.

3. The battery pack according to claim 2, characterized in that, The protective plate is provided with at least one groove recessed towards the circuit board, and each groove is provided with at least one first through hole.

4. The battery pack according to claim 2, characterized in that, The first through hole is located near the outer periphery of the protective plate.

5. The battery pack according to claim 1, characterized in that, The protective plate has a protrusion on the side near the circuit board. The protrusion extends from the protective plate toward the circuit board. When the protective plate is not under stress, the protrusion does not contact the circuit board.

6. The battery pack according to claim 5, characterized in that, The density of the protrusions located in the middle of the protective plate is greater than the density of those located at the periphery.

7. The battery pack according to claim 6, characterized in that, The protrusion includes a reinforcing rib and a supporting rib, wherein the dimension of the supporting rib in a first preset direction is greater than the dimension of the reinforcing rib in the first preset direction; wherein, the first preset direction is the thickness direction of the protective plate.

8. The battery pack according to claim 6, characterized in that, The protrusions are selected from one or more combinations of dot-shaped protrusions, strip-shaped protrusions, block-shaped protrusions, or grid-shaped protrusions.

9. The battery pack according to claim 1, characterized in that, The cell support is provided with a first notch, which is located at one end of the cell support in a second preset direction; a rubber plug is provided at the first notch; a limiting plate that cooperates with the first notch is also provided at one end of the protection plate, and the limiting plate covers at least a portion of the first notch; wherein, the second preset direction is the length direction of the protection plate.

10. The battery pack according to claim 9, characterized in that, The cell support has at least one second recess on both sides in a third preset direction; the edge of the protective plate has a protrusion that mates with the second recess; the protrusion covers at least a portion of the second recess; wherein the third preset direction is the direction in which the axis of the cell extends.

11. The battery pack according to claim 10, characterized in that, Each of the aforementioned bumps has a chamfered outer edge, and the outer edge of the bump does not exceed the outer surface of the battery cell bracket.

12. The battery pack according to claim 11, characterized in that, It also includes an insulating protective layer that covers the cell support, the busbar and the protection plate.

13. The battery pack according to claim 12, characterized in that, The insulating protective layer includes: A first protective layer, which at least partially covers both sides of the cell support in the third predetermined direction; A second protective layer, which at least partially covers the first protective layer, the cell support, and the protective plate; A third protective layer, which at least partially covers the second protective layer and is located at both ends of the cell support in the second preset direction.

14. An electric scooter, characterized in that, It includes at least one battery pack according to any one of claims 1-13.

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