CN220873754U

CN220873754U - Supporting structure and battery pack

Info

Publication number: CN220873754U
Application number: CN202322708662.1U
Authority: CN
Inventors: 朱洪伟; 王勇; 项兴富; 李延涛; 王鹏; 赵福成
Original assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely Power Train Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely Power Train Co Ltd
Priority date: 2023-10-08
Filing date: 2023-10-08
Publication date: 2024-04-30
Anticipated expiration: 2033-10-08

Abstract

The utility model provides a supporting structure and a battery pack, and relates to the technical field of batteries, wherein the supporting structure comprises: the bracket is used for being connected in the battery pack box body, a channel is arranged in the bracket in a penetrating way along the direction parallel to the bottom surface of the upper cover plate of the battery pack, and an opening is formed in one side of the channel, facing the upper cover plate of the battery pack; and the cover plate structure is used for moving to a set position along the direction perpendicular to the bottom surface of the upper cover plate of the battery pack relative to the support at the opening, and is detachably connected with the support at the set position, and one end of the cover plate structure away from the support and/or one end of the support, which is provided with the opening, is used for supporting the upper cover plate of the battery pack. Compared with the prior art, the supporting structure is used for supporting the upper cover plate of the battery pack on one hand and fixing the circuit component in the box body of the battery pack on the other hand, namely, the buckle for fixing the circuit component is not needed to be additionally arranged in the battery pack, so that the local integrated design of the battery pack is realized.

Description

Supporting structure and battery pack

Technical Field

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

Background

With the rapid development of new energy automobiles, power batteries are increasingly widely used, wherein a battery pack consisting of the power batteries is a core component of the new energy automobiles and is also an important direction of energy transformation in the future.

The battery pack upper cover plate is used as an important component of the battery pack and is generally formed by stamping steel plates, and in order to ensure that the mode of the battery pack upper cover plate meets the design requirement, corresponding supporting structures are usually required to be designed in a battery pack box body, namely a plurality of supporting structures are arranged in the battery pack box body at intervals to support the battery pack upper cover plate, so that the battery pack upper cover plate is prevented from vibrating greatly in the vehicle movement process, and the mode requirement of the battery pack upper cover plate is met.

Because a plurality of power battery modules and circuit components (for example, copper bars and wire harnesses) are arranged in the inner space of the battery pack box body, the circuit components are required to be fixed in the battery pack box body through a plurality of fastening structures, so that the inner space of the battery pack box body is limited, and the existing supporting structure only plays a role in supporting an upper cover plate of the battery pack, so that the function of the battery pack is single, and the integrated design of the battery pack is not facilitated.

Disclosure of utility model

The present utility model aims to solve at least one of the above technical problems.

In order to solve the above problems, the present utility model provides a support structure, comprising:

The bracket is used for being connected in the battery pack box body, a channel is arranged in a penetrating manner along the direction parallel to the bottom surface of the battery pack upper cover plate, and an opening is formed in one side of the channel, facing the battery pack upper cover plate, of the bracket;

And the cover plate structure is used for moving to a set position along the direction perpendicular to the bottom surface of the upper cover plate of the battery pack relative to the support, and is used for being detachably connected with the support at the set position, and one end of the cover plate structure away from the support and/or one end of the support, provided with the opening, is used for supporting the upper cover plate of the battery pack.

Compared with the prior art, the supporting structure provided by the utility model has the following beneficial effects:

According to the support structure disclosed by the utility model, the support can be connected to the inside of the battery pack box body, such as the box body beam, the circuit components (such as copper bars and/or wire harnesses) in the battery pack box body can pass through the channel formed in the support, the cover plate structure can move to the set position relative to the support along the direction perpendicular to the bottom surface of the cover plate on the battery pack at the opening of the support, the cover plate structure moving to the set position can be detachably connected with the support, and the cover plate structure at the set position can further compress the circuit components in the channel along the vertical direction, namely, the circuit components are fixed to protect the circuit components in the battery pack box body from accidental (such as collision of vehicles). Meanwhile, one end of the cover plate structure far away from the support and/or one end of the support, which is provided with an opening, for example, the top end can support the upper cover plate of the battery pack so as to ensure the modal requirement of the upper cover plate of the battery pack. Compared with the prior art, the supporting structure is used for supporting the upper cover plate of the battery pack on one hand and fixing the circuit component in the box body of the battery pack on the other hand, namely, the buckle for fixing the circuit component is not needed to be additionally arranged in the battery pack, so that the local integrated design of the battery pack is realized.

Optionally, the bracket includes a first middle plate, two ends of the first middle plate are respectively bent towards the direction of the upper cover plate of the battery pack to form second side plates, and the channel with the opening is formed between the two second side plates.

Optionally, the cover plate structure includes the cover plate main part, the cover plate main part includes the second intermediate plate, the both ends of second intermediate plate are towards the direction of first intermediate plate is bent respectively and is formed with first curb plate, two first curb plate is used for respectively with corresponding second curb plate detachable connection.

Optionally, the protrusion is provided with protruding structure on the first curb plate, be provided with bayonet structure on the second curb plate, perhaps the protrusion is provided with bayonet structure on the first curb plate, be provided with protruding structure on the second curb plate, protruding structure be used for the joint in bayonet structure.

Optionally, the cover plate structure further includes a top plate, the top plate is connected to the second intermediate plate and faces the end face of the battery pack upper cover plate, the two first side plates are used for being connected between the two second side plates, and the top plate is used for being abutted to one end, close to the battery pack upper cover plate, of the two second side plates respectively.

Optionally, a first protection pad is disposed on an end surface of the top plate facing the upper cover plate of the battery pack, and the cover plate structure is used for supporting the upper cover plate of the battery pack through the first protection pad.

Optionally, a second protection pad is arranged on the end face, facing away from the upper cover plate of the battery pack, of the second middle plate.

Optionally, the outer side wall of at least one of the second side plates is provided with a dehumidifying sheet.

Optionally, the support structure further comprises a connecting piece, wherein the bracket is provided with a first connecting hole, and the connecting piece is used for penetrating through the first connecting hole to a second connecting hole formed in the battery pack box body so as to fix the bracket with the battery pack box body.

In addition, the utility model also provides a battery pack which comprises the supporting structure.

Since technical improvements and technical effects of the battery pack are the same as those of the supporting structure, detailed description of the technical effects of the battery pack will not be provided.

Drawings

FIG. 1 is an exploded view of a support structure according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a cover structure according to an embodiment of the utility model;

Fig. 3 is a schematic structural view of a support structure according to an embodiment of the present utility model.

Reference numerals illustrate:

1. A bracket; 11. a second side plate; 12. a first intermediate plate; 121. a first connection hole; 13. a bayonet structure; 2. a cover plate structure; 21. a cover plate main body; 211. a first side plate; 212. a second intermediate plate; 22. a top plate; 23. a bump structure; 3. a first pad; 4. a second pad; 5. dehumidifying tablets; 6. a connecting piece; 7. a channel; 8. and a battery pack upper cover plate.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the description of the present utility model, the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "top", "bottom", "front", "rear", "inner" and "outer", etc. are used for convenience of description of the present utility model based on the directions or positional relationships shown in the drawings, and are not intended to indicate or imply that the apparatus to be referred to must have a specific direction, be configured and manipulated in a specific direction, and thus should not be construed as limiting the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the description of the present specification, the descriptions of the terms "embodiment," "one embodiment," and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or embodiment is included in at least one embodiment or illustrated embodiment of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same examples or implementations. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or implementations.

Moreover, in the drawings, the Z-axis represents vertical, i.e., up-down position, and the positive direction of the Z-axis represents up, and the negative direction of the Z-axis represents down; in the drawings, the X-axis represents the lateral direction, i.e., the left-right position, and the positive direction of the X-axis represents the left and the negative direction of the X-axis represents the right; the Y-axis in the drawing shows the longitudinal direction, i.e. the front-to-back position, and the positive direction of the Y-axis shows the rear and the negative direction of the Y-axis shows the front.

It should also be noted that the foregoing Z-axis, X-axis, and Y-axis are meant to be illustrative only and to simplify the description of the present utility model, and are not meant to indicate or imply that the devices or elements referred to must be in a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

As shown in fig. 1 and 3, the support structure of the embodiment of the present utility model includes:

The battery pack cover plate 8 comprises a bracket 1, wherein a channel 7 is arranged on the bracket 1 in a penetrating manner along the direction parallel to the bottom surface of the battery pack cover plate 8, and the bracket 1 is provided with an opening at one side of the channel 7 facing the battery pack cover plate 8;

And the cover plate structure 2 is used for moving to a set position relative to the bracket 1 along the direction perpendicular to the bottom surface of the upper cover plate 8 of the battery pack at the opening, the cover plate structure 2 is used for being detachably connected with the bracket 1 at the set position, and one end of the cover plate structure 2 away from the bracket 1 and/or one end of the bracket 1, which is provided with the opening, is used for supporting the upper cover plate 8 of the battery pack.

In this embodiment, as shown in fig. 1 and 3, where the bracket 1 may be connected to the inside of the battery pack case, for example, the bottom end (the opposite direction of the Z axis in fig. 1 or 3) of the bracket 1 may be connected to a case beam in the inside of the battery pack case, and a circuit component (for example, a copper bar and/or a wire harness) in the battery pack case may pass through a channel 7 (the penetrating direction of the channel 7 may be the Y axis direction in fig. 1) formed in the bracket 1, where the cover structure 2 may be moved to a set position relative to the bracket 1 at an opening of the bracket 1 in a direction perpendicular to the bottom surface of the cover 8 of the battery pack (the Z axis direction in fig. 3), and the cover structure 2 moved to the set position may be detachably connected to the bracket 1, so that the cover structure in the set position may compress the circuit component in the channel 7 in, for example, i.e. fix the circuit component to protect the circuit component in the battery pack case from an accidental damage (for example, a collision of a vehicle). At the same time, the end of the cover structure 2 away from the bracket 1 and/or the end of the bracket 1 provided with the opening, such as the top end, can support the battery pack upper cover 8 so as to ensure the modal requirement of the battery pack upper cover 8. Compared with the prior art, the supporting structure of the embodiment is used for supporting the upper cover plate 8 of the battery pack on one hand and fixing the circuit component in the box body of the battery pack on the other hand, namely, the buckle for fixing the circuit component is not needed to be additionally arranged in the battery pack, and the local integration design of the battery pack is realized.

It should be noted that, the above-mentioned "the end of the cover structure 2 away from the bracket 1 and/or the end of the bracket 1 provided with the opening is used for supporting the battery pack upper cover 8", it may be understood that, when the cover structure 2 is connected to the bracket 1 at the set position, the upper end surface (in the Z-axis direction in fig. 3 or fig. 1) of the cover structure 2 may be lower than or equal to or higher than the end of the bracket 1 provided with the opening, and if the upper end surface of the cover structure 2 is lower than the end of the bracket 1 provided with the opening, the end of the bracket 1 provided with the opening supports the battery pack upper cover 8; if the upper end face of the cover plate structure 2 is equal to the end, provided with the opening, of the bracket 1, the cover plate structure 2 and the end, provided with the opening, of the bracket 1 jointly support the upper cover plate 8 of the battery pack; if the upper end surface of the cover plate structure 2 is higher than the end, provided with the opening, of the bracket 1, the cover plate structure 2 supports the upper cover plate 8 of the battery pack. In addition, the battery pack is generally flat, i.e., the upper battery pack cover 8 is flat, the direction parallel to the upper battery pack cover 8 may be longitudinal, or transverse as shown in fig. 1, and the opening is located at the top of the channel.

It should be noted that, the upper cover 8 of the battery pack is generally a thin plate, and the bottom surface and the top surface of the thin plate are both planar and parallel to each other, and the direction parallel to the bottom surface of the upper cover 8 of the battery pack corresponds to the direction parallel to the top surface of the upper cover 8 of the battery pack, and the direction perpendicular to the bottom surface of the upper cover 8 of the battery pack corresponds to the direction perpendicular to the top surface of the upper cover 8 of the battery pack.

Optionally, the bracket 1 includes a first middle plate 12, two ends of the first middle plate 12 are respectively bent towards the direction of the upper cover plate 8 of the battery pack to form second side plates 11 _,, the channel 7 with the opening is formed between the two second side plates 11, and the cover plate structure 2 is used for detachably connecting with at least one second side plate 11 at the opening.

In this embodiment, as shown in fig. 1, two ends of the first middle plate 12 are respectively bent towards the direction of the upper cover plate 8 of the battery pack to form a second side plate 11, that is, the bracket 1 is in a U-shaped structure, the left and right side plates (X-axis direction in fig. 1) of the bracket 1 are the second side plates 11, a channel 7 is formed between the second side plates 11, the upper end of the channel 7 is an opening of the bracket 1, and the cover plate structure 2 can be detachably connected with at least one second side plate 11 at the opening, for example, can be in bolted connection or clamped connection.

Optionally, the cover structure 2 includes a cover main body 21, the cover main body 21 includes a second middle plate 212, two ends of the second middle plate 212 are respectively bent towards the direction of the first middle plate 12 to form first side plates 211, and the two first side plates 211 are respectively detachably connected with the corresponding second side plates 11.

In this embodiment, as shown in fig. 2, the cover main body 21 may be a metal sheet with elasticity, wherein two ends of the second middle plate 212 of the cover main body 21 are respectively bent towards the direction of the first middle plate 12 to form first side plates 211, that is, the cover main body 21 is in an n-shaped structure as a whole, and two first side plates 211 may be respectively detachably connected with the corresponding second side plates 11, for example, by bolting or clamping.

Optionally, the first side plate 211 is provided with a protruding structure 23 in a protruding manner, the second side plate 11 is provided with a bayonet structure 13, or the first side plate 211 is provided with a bayonet structure 13 in a protruding manner, the second side plate 11 is provided with a protruding structure 23, and the protruding structure 23 is used for being clamped to the bayonet structure 13.

In this embodiment, as shown in fig. 1 and fig. 2, the outer side walls of the two first side plates 211 are respectively provided with an outward protruding structure 23, where the protruding structure 23 may be a rectangular structure with a chamfer, where the chamfer is used to facilitate the protruding structure 23 to smoothly move to and be in clamping fit with the bayonet structure 13; the second side plate 11 is provided with a penetrating bayonet structure 13 at a position close to the opening (positive direction of the Z axis in fig. 1) of the bracket 1, wherein the bayonet structure 13 is matched with the shape of the protruding structure 23, for example, the protruding structure 23 on the first side plate 211 can be attached to the inner side wall of the second side plate 11 to slide up and down to a set position, so as to realize the clamping fit between the protruding structure 23 and the bayonet structure 13. Wherein, since the cover main body 21 may be a metal sheet having elasticity, the two first side plates 211 may be deformed in opposite directions so that the two protruding structures 23 enter between the two second side plates 11 and are snapped into the corresponding bayonet structures 13.

In other embodiments, a fourth connecting hole may be provided on the second side plate 11, and a third connecting hole may be provided on the first side plate 211, where when the cover structure 2 moves to the set position, the fourth connecting hole is aligned with the third connecting hole, and at this time, the third connecting hole may be connected with the fourth connecting hole by a connecting piece such as a bolt, a screw, or a bolt, so as to fix the cover structure 2 at the set position, and further keep the compression and fixation of the circuit assembly inside the channel 7.

Optionally, the cover structure 2 further includes a top plate 22, where the top plate 22 is connected to an end surface of the second middle plate 212 facing the upper cover 8 of the battery pack, and the two first side plates 211 are connected between the two second side plates 11, and the top plate 22 is used to respectively abut against one ends of the two second side plates 11 near the upper cover 8 of the battery pack.

In this embodiment, as shown in fig. 2, the top plate 22 may be a square plate structure, which may be connected to the upper surface (the positive direction of the Z axis in fig. 2) of the second middle plate 212 by welding or gluing, and when the protruding structure 23 is engaged with the bayonet structure 13 in a clamping manner, the top plate 22 abuts against the upper end (the positive direction of the Z axis in fig. 1) of the second side plate 11 at the same time, so that the supporting effect on the upper cover plate 8 of the battery pack is achieved by the top plate 22.

Optionally, the end surface of the top plate 22 facing the upper cover plate 8 of the battery pack is provided with a first protection pad 3, and the cover plate structure 2 is used for supporting the upper cover plate 8 of the battery pack through the first protection pad 3.

In this embodiment, as shown in fig. 1 or fig. 2, the upper surface of the top plate 22 (in the positive direction of the Z-axis in fig. 1 or fig. 2) may be connected with the first protection pad 3 by means of gluing, where the first protection pad 3 may be foam with a square structure, and the cover structure 2 specifically supports the upper cover 8 of the battery pack through the foam, and prevents the upper cover 8 of the battery pack from colliding with the cover structure 2 through soft contact between the foam and the upper cover 8 of the battery pack.

Optionally, the end surface of the second middle plate 212 facing away from the battery pack upper cover plate 8 is provided with a second protection pad 4.

In this embodiment, as shown in fig. 1 or fig. 2, the lower surface of the second middle plate 212 (opposite to the Z-axis in fig. 1 or fig. 2) may be connected with the second protection pad 4 by gluing, where the second protection pad 4 may be foam with a square structure, and the cover plate structure 2 is specifically pressed against the underlying circuit component by the foam, so as to facilitate protecting the circuit component (such as copper bars and/or wire harnesses) in the battery pack case from direct contact with the second middle plate 212, so as to avoid abrasion.

Optionally, the outer side wall of at least one of the second side plates 11 is provided with a dehumidifying sheet 5.

In this embodiment, as shown in fig. 1, the working temperature range of the battery pack is wider, and the moisture in the air in the battery pack is likely to condense into water droplets, which leads to the risk of short circuit in the battery pack, and in order to reduce the risk, the inside of the battery pack needs to be dehumidified, so that the outer side wall of at least one second side plate 11 is connected with a dehumidifying sheet 5 by gluing, so as to improve the safety of the battery pack.

Optionally, the supporting structure further includes a connecting member, a first connecting hole 121 is formed in the first middle plate 12, a second connecting hole corresponding to the first connecting hole 121 is formed in the box body of the battery pack, and the first connecting hole 121 and the second connecting hole are used for connecting through the connecting member 6, so that the bracket 1 and the box body of the battery pack are fixed.

In this embodiment, as shown in fig. 1, the bracket 1 is provided with a first connecting hole 121, specifically, the first middle plate 12 is provided with a plurality of first connecting holes 121 at intervals along the front-rear direction (Y-axis direction in fig. 1), and the connecting piece 6 is used for penetrating the first connecting holes 121 to a second connecting hole formed in the battery pack case, so as to fix the bracket 1 with the battery pack case. Wherein the second connecting holes can be formed on the box girder, the second connecting holes can be threaded holes, and the connecting piece 6 can be bolts, that is, the bolts sequentially pass through the first connecting holes 121 and the second connecting holes to mount the bracket 1 on the box girder.

In other embodiments, the first connecting hole 121 and the second connecting hole may be common through holes, and the connecting piece 6 may be a blind rivet, that is, the bracket 1 is riveted and fixed in the box body of the battery pack by the blind rivet, so that the connection strength between the bracket 1 and the box body of the battery pack is high, and loosening is avoided.

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 or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

Although the utility model is disclosed above, the scope of the utility model is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the scope of the utility model.

Claims

1. A support structure, comprising:

The battery pack upper cover plate (8) is characterized by comprising a bracket (1), wherein a channel (7) is arranged on the bracket (1) in a penetrating manner along the direction parallel to the bottom surface of the battery pack upper cover plate (8), and the bracket (1) is provided with an opening at one side of the channel (7) facing the battery pack upper cover plate (8);

And the cover plate structure (2) is used for moving to a set position along the direction perpendicular to the bottom surface of the upper cover plate (8) of the battery pack at the opening, the cover plate structure (2) is used for being detachably connected with the support (1) at the set position, and one end of the support (1) is far away from the cover plate structure (2) and/or one end of the support (1) is provided with the opening for supporting the upper cover plate (8) of the battery pack.

2. The support structure according to claim 1, characterized in that the bracket (1) comprises a first intermediate plate (12), both ends of the first intermediate plate (12) being respectively bent in a direction toward the battery pack upper cover plate (8) to form second side plates (11), and the channel (7) being formed between both the second side plates (11).

3. The supporting structure according to claim 2, wherein the cover plate structure (2) comprises a cover plate main body (21), the cover plate main body (21) comprises a second middle plate (212), two ends of the second middle plate (212) are respectively bent towards the direction of the first middle plate (12) to form first side plates (211), and two first side plates (211) are respectively detachably connected with the corresponding second side plates (11).

4. A support structure according to claim 3, characterized in that the first side plate (211) is provided with protruding structures (23) protruding therefrom, and the second side plate (11) is provided with bayonet structures (13) thereon; or the first side plate (211) is convexly provided with a bayonet structure (13), and the second side plate (11) is provided with a convex structure (23); the protruding structure (23) is used for being clamped with the bayonet structure (13).

5. A support structure according to claim 3, wherein the cover structure (2) further comprises a top plate (22), the top plate (22) being connected to an end surface of the second intermediate plate (212) facing the battery pack upper cover plate (8), two first side plates (211) being arranged between the two second side plates (11), the top plate (22) being arranged to abut against one end of the two second side plates (11) close to the battery pack upper cover plate (8), respectively.

6. Support structure according to claim 5, characterized in that the end face of the top plate (22) facing the battery pack upper cover plate (8) is provided with a first protection pad (3), the cover plate structure (2) being adapted to support the battery pack upper cover plate (8) by means of the first protection pad (3).

7. A support structure according to claim 3, characterized in that the end face of the second intermediate plate (212) facing away from the battery pack upper cover plate (8) is provided with a second protection pad (4).

8. Support structure according to claim 2, characterized in that the outer side wall of at least one of the second side plates (11) is provided with a dehumidifying sheet (5).

9. The supporting structure according to claim 1, further comprising a connecting piece (6), wherein a first connecting hole (121) is formed in the bracket (1), and the connecting piece (6) is used for penetrating through the first connecting hole (121) to a second connecting hole formed in the battery pack box body so as to fix the bracket (1) and the battery pack box body.

10. A battery pack comprising a battery pack case, a battery pack top cover plate (8) and a support structure according to any one of claims 1 to 9.