CN221466712U - Battery box bracket and battery pack - Google Patents

Abstract

The utility model relates to the technical field of batteries, in particular to a battery box bracket and a battery pack. The battery box bracket comprises a protection layer plate, a supporting component and a fixing piece, wherein the protection layer plate is provided with a bearing surface, the liquid cooling plate is arranged on the bearing surface, the supporting component is arranged on one side, far away from the liquid cooling plate, of the protection layer plate, and the liquid cooling plate and the protection layer plate are detachably connected with the supporting component through the fixing piece. Through the arrangement, the liquid cooling plate is supported and protected, damage to a flow channel of the liquid cooling plate is avoided, and accidental damage to the liquid cooling plate is prevented; meanwhile, the quick assembly disassembly of the liquid cooling plate, the protection laminate and the support component is convenient, the assembly efficiency of the battery box bracket is improved, and the production efficiency of the battery pack is improved. The battery pack has a good protection effect on the liquid cooling plate by applying the battery box bracket, and meanwhile, the production efficiency of the battery pack is improved.

Description

Battery box bracket and battery pack

Technical Field

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

Background

The battery is used as one of electrochemical energy storage technologies, has the advantages of high voltage, small volume, light weight, high energy, no pollution, long service life and the like, and is widely applied to the fields of medical electronics, photovoltaic energy storage, railway construction, data centers, outdoor power supplies, household energy storage, military equipment and the like.

In the technical field of batteries, because the voltage or the capacity of a single electric core is relatively low, the battery is generally used in the form of a battery module or a battery pack. A battery module composed of a plurality of battery cells and a battery pack composed of a plurality of battery modules and a control system. The battery cell generates a large amount of heat due to chemical reaction in the charge and discharge process of the battery pack, so that the thermal runaway of the battery pack is caused.

In order to ensure the use safety of the battery pack, a liquid cooling plate is generally adopted to cool the battery cell. The liquid cooling plate is provided with a cavity or a flow channel for cooling liquid to flow in so as to take away heat generated by the battery core. The battery pack comprises a battery box body, a battery box body bracket is arranged at the bottom of the battery box body, and the liquid cooling plate is arranged above the battery box body bracket; on the other hand, the existing battery box bracket comprises a plurality of liquid cooling plate supporting longitudinal beams and a plurality of structure reinforcing cross beams, and during assembly, parts are too many, so that the installation procedure of the liquid cooling plates is increased, the manufacturing period of the battery pack is relatively longer, and the production efficiency is lower.

Therefore, there is a need for a battery case bracket and a battery pack to solve the above problems.

Disclosure of utility model

The utility model aims to provide a battery box bracket and a battery pack, which are used for supporting and protecting a liquid cooling plate and avoiding damage to a flow channel of the liquid cooling plate; and meanwhile, the production efficiency of the battery pack is improved.

In order to achieve the above object, the following technical scheme is provided:

A battery box bracket comprising:

The protection layer plate is provided with a bearing surface, and the liquid cooling plate is arranged on the bearing surface;

The support component is arranged on one side of the protection layer plate far away from the liquid cooling plate; and

The fixing piece, the liquid cooling plate and the protection layer plate are detachably connected with the support component through the fixing piece.

Preferably, the protective laminate is made of a flexible material.

Preferably, the bearing surface is provided with a protruding structure, and the protruding structure is used for supporting the liquid cooling plate.

Preferably, the number of the protruding structures is plural, and the plural protruding structures extend along the length direction of the protective laminate and are arranged at intervals along the width direction of the protective laminate.

Preferably, the support assembly includes:

The two first supporting pieces are correspondingly arranged at two ends of the width direction of the protective laminate so that the top surfaces of the first supporting pieces are level with the top surface of the protective laminate;

The second supporting piece extends along the width direction of the protection laminate, the second supporting piece is arranged below the first supporting piece, two ends of the second supporting piece are respectively and correspondingly connected with the two first supporting pieces, and the bottom surface of the protection laminate is abutted to the top surface of the second supporting piece.

Preferably, the number of the second supporting pieces is plural, and the plural second supporting pieces are arranged at intervals along the length direction of the protective layer board.

Preferably, the second supporting member is formed by roll forming.

Preferably, the second supporting member is made of high-strength steel plate.

Preferably, the second support member has a flat cross section.

The battery pack comprises a battery box side plate, a cover plate and a battery cell, and further comprises the battery box bracket, wherein the battery box side plate is arranged on the periphery of the battery box bracket, the battery box side plate and the battery box bracket jointly form an accommodating space with an opening, the battery cell is arranged in the accommodating space, and the cover plate is blocked at the opening.

Compared with the prior art, the utility model has the beneficial effects that:

The battery box bracket comprises a protection layer plate, a support component and a fixing piece, wherein the protection layer plate is provided with a bearing surface, the liquid cooling plate is arranged on the bearing surface, the support component is arranged on one side of the protection layer plate far away from the liquid cooling plate, and the liquid cooling plate and the protection layer plate are detachably connected with the support component through the fixing piece. The protection layer plate is arranged, the liquid cooling plate is arranged on the bearing surface of the protection layer plate, the whole liquid cooling plate is supported, the bottom of the liquid cooling plate is covered, the liquid cooling plate is supported and protected, damage to a flow channel of the liquid cooling plate is avoided, and accidental damage to the liquid cooling plate is prevented; through setting up the mounting, can dismantle liquid cooling board and protection plywood and supporting component and be connected, the quick assembly disassembly of liquid cooling board, protection plywood and supporting component of being convenient for helps improving the efficiency of the equipment of battery box bracket, and then improves the production efficiency of battery package.

The battery pack provided by the utility model has a good protection effect on the liquid cooling plate by applying the battery box bracket, and meanwhile, the production efficiency of the battery pack is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

Fig. 1 is a schematic structural view of a battery box bracket according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view at A-A in FIG. 1;

FIG. 3 is an enlarged view at B in FIG. 2;

fig. 4 is an exploded view of a battery case bracket according to an embodiment of the present utility model;

Fig. 5 is a schematic structural diagram of a protective layer board according to an embodiment of the present utility model.

Reference numerals:

100. A battery box bracket;

10. protecting the laminate; 11. a bearing surface; 111. a bump structure;

20. A support assembly; 21. a first support; 22. a second support;

30. A fixing member;

200. And a liquid cooling plate.

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that, if any, these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are used herein with respect to the orientation or positional relationship shown in the drawings, these terms refer to the orientation or positional relationship for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a 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. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In the present application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

The embodiment provides a battery pack, this battery pack includes battery box curb plate, battery box bracket, apron and electric core, and battery box curb plate sets up in the week side of battery box bracket, and battery box curb plate and battery box bracket form jointly and have open accommodation space, and electric core setting is in accommodation space, and the apron shutoff is in open department.

The number of the battery cells is one or more. The multiple electric cores can be connected in series or in parallel, and the series-parallel connection refers to that the multiple electric cores are connected in series or in parallel. The multiple electric cores can be directly connected in series or in parallel or in series-parallel, and then the whole formed by the multiple electric cores is accommodated in the accommodating space; of course, a plurality of battery cells may be connected in series or in parallel or in series-parallel to form a battery module, and then a plurality of battery modules are connected in series or in parallel or in series-parallel to form a whole and are accommodated in the accommodating space to form a battery pack.

The battery cell generates a large amount of heat due to chemical reaction in the charge and discharge process of the battery pack, so that the thermal runaway of the battery pack is caused. As shown in fig. 1 to 4, in order to ensure the safety of the battery pack, a liquid cooling plate 200 is generally used to cool the battery cells. The liquid cooling plate 200 has a cavity or a flow channel therein for flowing a cooling liquid therein to remove heat generated from the battery cells. The liquid cooling plate 200 is disposed above the battery box bracket 100, and the battery cell is disposed above the liquid cooling plate 200.

In the prior art, on one hand, in order to strengthen the strength of the liquid cooling plate structure, a part of the structure of the battery box bracket is welded with the liquid cooling plate, and the liquid cooling plate channel is possibly damaged; on the other hand, the existing battery box bracket comprises a plurality of liquid cooling plate supporting longitudinal beams and a plurality of structure reinforcing cross beams, and during assembly, parts are too many, so that the installation procedure of the liquid cooling plates is increased, the manufacturing period of the battery pack is relatively longer, and the production efficiency is lower.

In order to solve the above-mentioned problems, as shown in fig. 1-4, the battery box bracket 100 provided in this embodiment includes a protective layer 10, a support assembly 20 and a fixing member 30, wherein the protective layer 10 has a bearing surface 11, a liquid cooling plate 200 is disposed on the bearing surface 11, the support assembly 20 is disposed on a side of the protective layer 10 away from the liquid cooling plate 200, and the liquid cooling plate 200 and the protective layer 10 are detachably connected to the support assembly 20 through the fixing member 30. By arranging the protective laminate 10 and arranging the liquid cooling plate 200 on the bearing surface 11 of the protective laminate 10, the whole liquid cooling plate 200 is supported, and meanwhile, the bottom of the liquid cooling plate 200 is covered, so that the liquid cooling plate 200 is supported and protected, the damage to the flow channel of the liquid cooling plate 200 is avoided, and the liquid cooling plate 200 is prevented from being accidentally damaged; through setting up mounting 30, can dismantle liquid cooling board 200 and protection plywood 10 and supporting component 20 and be connected, the quick assembly disassembly of liquid cooling board 200, protection plywood 10 and supporting component 20 of being convenient for helps improving the efficiency of the equipment of battery box bracket 100, and then improves the production efficiency of battery package.

It should be noted that, the fixing member 30 may be one or a combination of several of a screw, a pin, a rivet, and a movable buckle, so as to realize quick assembly and disassembly of the liquid cooling plate 200, the protective layer plate 10, and the support assembly 20.

Further, the protective layer 10 is made of flexible material, so that the protective effect on the liquid cooling plate 200 is further improved. Specifically, the protective layer 10 may be made of rubber, plastic, sponge, or silica gel.

As shown in fig. 4 and 5, the bearing surface 11 is provided with a protrusion structure 111, and the protrusion structure 111 is used for supporting the liquid cooling plate 200.

Further, the number of the protruding structures 111 is plural, and the plurality of protruding structures 111 extend in the length direction of the protective laminate 10 and are arranged at intervals in the width direction of the protective laminate 10. The flow channel of the liquid cooling plate 200 is arranged at the gap between two adjacent convex structures 111, so that the supporting effect on the liquid cooling plate 200 can be further improved, and collapse of the liquid cooling plate 200 is prevented.

As shown in fig. 2-4, the supporting component 20 includes two first supporting members 21 and two second supporting members 22, where the two first supporting members 21 are correspondingly disposed at two ends of the width direction of the protective layer 10, so that the top surface of the first supporting member 21 is flush with the top surface of the protective layer 10, the second supporting member 22 extends along the width direction of the protective layer 10, the second supporting member 22 is disposed below the first supporting member 21, and two ends of the second supporting member 22 are respectively correspondingly connected with the two first supporting members 21, and the bottom surface of the protective layer 10 abuts against the top surface of the second supporting member 22. Through setting up two first support piece 21 correspondence at the both ends of protection plywood 10 width direction to make the top surface of first support piece 21 and the top surface parallel and level of protection plywood 10, reduce the protection plywood 10 and occupy the space of battery box bracket 100 in vertical direction, be favorable to improving the energy density of battery package.

Further, the number of the second supporting members 22 is plural, and the plurality of second supporting members 22 are disposed at intervals along the length direction of the protective layer 10, so as to improve the supporting effect of the second supporting members 22 on the first supporting members 21 and the protective layer 10.

Preferably, the first support 21 and/or the second support 22 are made by roll forming. The internal stress of the first supporting piece 21 and the second supporting piece 22 is eliminated by roll forming, the rebound resilience is small, and the quality is good.

Alternatively, the second support 22 is made of a high strength steel plate. The high-strength steel plate (high-strength plate) is brand Q460 steel, has high strength, and particularly has higher comprehensive mechanical properties in a normalizing or normalizing plus tempering state.

Alternatively, as shown in fig. 2 and 3, the second support 22 is flat in cross section. The flat second supporting member 22 is formed by bending both ends of the whole steel plate towards the center of the steel plate, so that the beam can be ensured to have higher rigidity under the condition of lower height.

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

The foregoing description is only of the preferred embodiments of the utility model and the technical principles employed. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims (10)

1. The battery box bracket, its characterized in that includes:

a protective layer board (10), wherein the protective layer board (10) is provided with a bearing surface (11), and a liquid cooling plate (200) is arranged on the bearing surface (11);

the support component (20) is arranged on one side of the protective layer plate (10) away from the liquid cooling plate (200); and

The fixing piece (30), the liquid cooling plate (200) and the protection layer plate (10) are detachably connected with the support assembly (20) through the fixing piece (30).

2. Battery compartment bracket according to claim 1, characterized in that the protective laminate (10) is made of a flexible material.

3. The battery box bracket according to claim 1, wherein a protruding structure (111) is provided on the carrying surface (11), and the protruding structure (111) is used for supporting the liquid cooling plate (200).

4. A battery box bracket according to claim 3, wherein the number of the protruding structures (111) is plural, and the plurality of protruding structures (111) extend in the longitudinal direction of the protective laminate (10) and are arranged at intervals in the width direction of the protective laminate (10).

5. The battery compartment bracket of any of claims 1-4, wherein the support assembly (20) comprises:

The two first supporting pieces (21) are correspondingly arranged at two ends of the protective laminate (10) in the width direction, so that the top surfaces of the first supporting pieces (21) are level with the top surface of the protective laminate (10);

The second support piece (22), second support piece (22) are followed the width direction of protection plywood (10) extends, second support piece (22) set up the below of first support piece (21) just the both ends of second support piece (22) respectively with two first support piece (21) correspond to be connected, the bottom surface of protection plywood (10) with the top surface butt of second support piece (22).

6. The battery box bracket according to claim 5, wherein the number of the second supporting members (22) is plural, and the plural second supporting members (22) are arranged at intervals in the longitudinal direction of the protective layer plate (10).

7. The battery compartment bracket of claim 5, wherein the second support member (22) is manufactured by roll forming.

8. The battery box bracket of claim 5, wherein the second support member (22) is made of a high strength steel plate.

9. The battery compartment bracket of claim 5, wherein the second support member (22) is flat in cross-section.

10. The battery pack is characterized by comprising a battery box side plate, a cover plate and a battery cell, and further comprising a battery box bracket according to any one of claims 1-9, wherein the battery box side plate is arranged on the periphery of the battery box bracket, the battery box side plate and the battery box bracket jointly form a containing space with an opening, the battery cell is arranged in the containing space, and the cover plate is blocked at the opening.