Battery fixing frame, battery module and battery pack

Abstract

The utility model relates to the technical field of batteries, in particular to a battery fixing frame, a battery module and a battery pack, the battery fixing frame comprises a support main body and buckles arranged on the outer side of the support main body, the support main body is provided with mounting grooves used for mounting battery cells, and the buckles are arranged between every two adjacent mounting grooves; according to the battery fixing frame, the fixing effect on the wire can be improved, and the situation that the wire is damaged due to shaking is avoided.

Description

Technical Field

[0001] This application relates to the technical field of batteries, and particularly to a battery fixing bracket, a battery module, and a battery pack. Background Art

[0002] A battery pack includes a housing and a plurality of battery modules disposed within the housing. The battery modules are connected by wires and connected to external devices. Before the battery modules are installed into the housing, it is necessary to first fix the wires to prevent the wires from becoming scattered or rubbing against the housing during the installation process. Conventional battery packs generally use cable ties to fix the wires within the housing, but the fixing effect on the wires is poor, and the wire skins may be damaged due to shaking. Summary of the Utility Model

[0003] The purpose of this application is to provide a battery fixing bracket, a battery module, and a battery pack. The battery fixing bracket can improve the fixing effect on the wires and prevent the wires from being damaged due to shaking.

[0004] To this end, in a first aspect, an embodiment of this application provides a battery fixing bracket, which includes a bracket main body and a buckle disposed outside the bracket main body. The bracket main body has an installation groove for installing battery cells. The buckle is disposed between two adjacent installation grooves, and a clamping groove for fixing the wires is formed between the buckle and the bracket main body.

[0005] In a possible implementation manner, one end of the buckle is connected to the bracket main body, and there is an opening between the other end and the bracket main body. The opening is communicated with the clamping groove, and the wire can enter and exit the clamping groove through the opening.

[0006] In a possible implementation manner, a clamping portion is disposed on the buckle adjacent to the opening. An opening is formed between the clamping portion and the bracket main body, and the minimum width of the opening in the natural state is smaller than the diameter of the wire.

[0007] In a possible implementation manner, the side of the clamping portion facing the bracket main body is a smooth arc surface structure.

[0008] In a possible implementation manner, an introduction portion is disposed at one end of the buckle adjacent to the opening. The introduction portion and the clamping portion are in smooth transition, so that the opening is tapered along the direction of entering the clamping groove.

[0009] In a possible implementation manner, the maximum width of the opening in the natural state is greater than the diameter of the wire.

[0010] In a possible implementation manner, the buckle is located within the enclosed area of the four peripheral frames of the bracket main body.

[0011] In a possible implementation manner, the bracket main body further includes an arc portion surrounding the installation groove, and two adjacent arc portions and the buckle surround the clamping groove.

[0012] In a possible implementation, there are two bracket bodies. The two bracket bodies are arranged opposite to each other along the axial direction of the battery cell. An installation groove is provided on the opposite side of the two bracket bodies, and a limiting plate for limiting the battery cell is provided on the opposite side of the two bracket bodies.

[0013] In a second aspect, an embodiment of the present application provides a battery module, including: the above-mentioned battery fixing frame; and a battery cell disposed in the installation groove of the battery fixing frame.

[0014] In a possible implementation, the battery module further includes a conductive component and an insulating component disposed on the battery fixing frame. The battery cells form a series and / or parallel circuit through the conductive component, and the insulating component is located on the side of the conductive component away from the battery fixing frame.

[0015] In a third aspect, an embodiment of the present application provides a battery pack, including: a housing; a plurality of the above-mentioned battery modules disposed in the housing; and a connecting member for connecting the plurality of battery modules.

[0016] According to a battery fixing frame, a battery module and a battery pack provided by an embodiment of the present application, a clamping groove is formed between the buckle on the outer side of the bracket body and the bracket body of the battery fixing frame. The wire can be clamped and fixed through the clamping groove, which can improve the fixing effect on the wire and avoid the wire from being damaged due to shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In addition, in the drawings, the same components are denoted by the same reference numerals, and the drawings are not drawn to actual scale.

[0018] Figure 1 Showing a three-dimensional structural schematic diagram of a battery fixing frame provided by an embodiment of the present application;

[0019] Figure 2 Showing a planar structural schematic diagram of a battery fixing frame provided by an embodiment of the present application;

[0020] Figure 3 Showing Figure 2 A partial enlarged structural schematic diagram of part A of the shown battery fixing frame;

[0021] Figure 4 Showing a three-dimensional structural schematic diagram of a battery module provided by an embodiment of the present application;

[0022] Figure 5 Shows a schematic exploded view of a battery module provided by an embodiment of the present application;

[0023] Figure 6 Shows a schematic three-dimensional structure view of a battery pack provided by an embodiment of the present application;

[0024] Figure 7 Shows a schematic exploded view of a battery pack provided by an embodiment of the present application.

[0025] Description of reference numerals:

[0026] 1. Bracket main body; 11. Installation groove; 12. Limiting plate; 13. Positioning post; 14. Positioning hole; 15. Arc portion;

[0027] 2. Snap; 21. Clamping portion; 22. Introduction portion;

[0028] 3. Clamping groove; 4. Opening; 5. Battery cell; 6. Conductive component; 7. Insulating component; 8. Housing; 9. Connecting piece; 10. Wire. Detailed implementation manners

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0030] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the present application. To simplify the disclosure of the embodiments of the present application, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the embodiments of the present application. In addition, the embodiments of the present application may repeat reference numerals and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0031] For ease of description, spatial relative relationship terms may be used in the text to describe the relative positional relationship or movement of one element or feature shown in the figure with respect to another element or feature. These relative relationship terms are, for example, "inner", "outer", "inner side", "outer side", "below", "beneath", "above", "over", "front", "rear", etc. Such spatial relative relationship terms are intended to include different orientations of the device during use or operation other than the orientations depicted in the figure. For example, if the device in the figure undergoes a position flip, attitude change, or change in motion state, then these directional indications will change accordingly. For example, an element described as "below" or "beneath" other elements or features will then be oriented as "above" or "over" other elements or features. Therefore, the exemplary term "below" can include both upper and lower orientations. The device may be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used in the text are interpreted accordingly.

[0032] To solve the problems in the prior art, the present application provides a battery fixing bracket, a battery module, and a battery pack. The battery fixing bracket can improve the fixing effect on the wire harness and avoid the wire harness from being damaged due to shaking.

[0033] As Figures 1-5 shown, an embodiment of the present application provides a battery fixing bracket, including a bracket main body 1 and a buckle 2 arranged on the outer side of the bracket main body 1. The bracket main body 1 has a mounting groove 11 for mounting the battery cell 5. The buckle 2 is arranged between two adjacent mounting grooves 11. A clamping groove 3 for fixing the wire harness 10 is formed between the buckle 2 and the bracket main body 1.

[0034] In the present application, a clamping groove 3 is formed between the buckle 2 on the outer side of the bracket main body 1 and the bracket main body 1. The wire harness 10 can be clamped and fixed through the clamping groove 3, which can improve the fixing effect on the wire harness 10 and avoid the wire harness 10 from being damaged due to shaking.

[0035] In the related art, in an existing battery pack, the wire harness is generally bound by a cable tie. When the battery module is installed in the housing 8, since the wire harness is made of a flexible material, it will shake randomly during the assembly process, resulting in difficult installation. The housing 8 needs to have sufficient strength, generally made of a metal material. The wire harness that is not fixed properly is prone to rubbing against the housing 8 during the installation process, causing damage to the skin of the wire 10, and further posing a short-circuit hazard.

[0036] In this application, by providing a buckle 2 on the outer side of the bracket body 1, and the buckle 2 is arranged between two adjacent mounting grooves 11, it does not occupy extra space, and can make the wire 10 fixed in the clamping groove 3 located between the two mounting grooves 11, so as to provide good fixation and protection for the wire 10. When fixing the wire 10, directly snap the wire 10 into the clamping groove 3, without the need to tie and fix the wire 10 again, which is convenient for the subsequent assembly of the battery module. Moreover, the fixed wire 10 is closely attached to the outer side of the bracket body 1 and is located in the gap between the two mounting grooves 11. When the battery module is installed into the housing 8, the wire 10 will not rub against the housing 8 due to shaking, thereby protecting the skin of the wire 10 and avoiding the situation of circuit short - circuit.

[0037] In some embodiments, one end of the buckle 2 is connected to the bracket body 1, and there is an opening 4 between the other end and the bracket body 1. The opening 4 communicates with the clamping groove 3, and the wire 10 can enter and exit the clamping groove 3 through the opening 4.

[0038] In this application, the buckle 2 and the bracket body 1 are integrally formed. The opening 4 formed between one end of the buckle 2 connected to the bracket body 1 and the other end is used for the insertion and extraction of the wire 10. When the wire 10 needs to be fixed, directly snap the wire 10 into the clamping groove 3 through the opening 4. When the wire 10 needs to be pulled out, just pull the wire groove out through the opening 4 with force.

[0039] As Figures 2-3 shown, in some embodiments, a clamping portion 21 is provided on the buckle 2 adjacent to the opening 4. The clamping portion 21 and the bracket body 1 form the opening 4, and the minimum width of the opening 4 in the natural state is smaller than the diameter of the wire 10.

[0040] In this application, by providing the clamping portion 21 on the buckle 2, in the natural state of the opening 4, that is, when the buckle 2 is not extruded by external force, the minimum width of the opening 4 is smaller than the diameter of the wire 10, so that the clamping portion 21 can effectively limit the wire 10 and avoid the situation that the wire 10 slips out from the opening 4.

[0041] In the related art, currently on the market, the wire 10 is tied and fixed by a cable tie. However, due to the fact that the wire 10 itself has a certain flexibility and a certain resilience, when the resilience of the wire 10 is greater than the binding force, the wire 10 will be separated from the fixation again. In this application, by setting the size of the opening 4 to be smaller, smaller than the diameter of the wire 10, the wire 10 needs to push the buckle 2 to a certain arc in the clamping groove 3 to be separated from the clamping groove 3. And a section of wire 10 needs multiple buckles 2 for clamping and fixing, and the resilience angles of the wire 10 at different positions are also different. Therefore, the wire 10 can be well fixed, and the situation that the wire 10 is separated from the clamping groove 3 due to its own resilience will not occur.

[0042] As Figures 2-3 shown, in some embodiments, the side of the clamping portion 21 facing the bracket body 1 is a smooth arc surface structure.

[0043] In this application, the side of the clamping portion 21 facing the bracket body 1 is a smooth arc surface structure. When the wire 10 passes in and out through the opening 4, the wire 10 can be well protected, avoiding being scratched when the wire 10 is inserted and pulled out. At the same time, the wire 10 can be limited and prevented from coming off.

[0044] In some embodiments, an introduction portion 22 is provided at one end of the buckle 2 adjacent to the opening 4. The introduction portion 22 is in smooth transition with the clamping portion 21, so that the opening 4 is tapered along the direction of entering the clamping groove 3.

[0045] In this application, through the introduction portion 22, the opening 4 is tapered along the direction of entering the clamping groove 3, so as to facilitate the insertion of the wire 10 into the clamping groove 3 through the opening 4, avoiding the situation that it is difficult to insert the wire 10 because the wire 10 and the opening 4 cannot be aligned.

[0046] Furthermore, the maximum width of the opening 4 in the natural state is greater than the diameter of the wire 10.

[0047] In this application, the maximum width of the opening 4 in the natural state is greater than the diameter of the wire 10. At the part with the maximum width and the outermost end of the opening 4, when the wire 10 is inserted into the clamping groove 3, only need to move the wire 10 to the outermost end of the opening 4, and then push the wire 10 along the direction of entering the clamping groove 3, then the wire 10 can be pushed into the clamping groove 3 through the opening 4. There will be no situation that the wire 10 abuts against the end of the buckle 2 and cannot be pushed into the clamping groove 3, which is convenient for the insertion and assembly of the wire 10.

[0048] In some embodiments, the buckle 2 is located within the enclosed area of the four peripheral frames of the bracket body 1.

[0049] In this application, the buckle 2 is arranged on the outside of the bracket body 1, but within the enclosed area of the four peripheral frames of the bracket body 1, so that it will not occupy extra space, and the space of the bracket body 1 can be maximally utilized. Thus, the outer dimension of the battery pack can be correspondingly reduced, the volume is small, the battery compartment can be minimized, and finally the design requirements of simplicity, lightness and convenience of the product appearance can be met.

[0050] As Figure 3 shown, in some embodiments, the bracket body 1 further includes arc portions 15 that enclose an installation groove 11. Two adjacent arc portions 15 and the buckle 2 enclose a clamping groove 3.

[0051] In this application, the installation groove 11 is a circular structure for fixing the cylindrical battery cell 5. The arc portions 15 enclose the installation groove 11, and the arc portions 15 and the installation groove 11 are concentrically arranged. By arranging the clamping groove 3 between two adjacent arc portions 15 and the buckle 2, the space on the bracket main body 1 can be fully utilized without occupying additional space, thereby reducing the size of the battery fixing bracket.

[0052] Specifically, the arc portion 15 can be a part of a circle, as long as it can enclose the installation groove 11 and the clamping groove 3; optionally, the arc portion 15 can also be an entire circle.

[0053] In some embodiments, there are two bracket main bodies 1, and the two bracket main bodies 1 are arranged oppositely along the axial direction of the battery cell 5. Installation grooves 11 are arranged on the opposite sides of the two bracket main bodies 1, and limiting plates 12 for limiting the battery cell 5 are arranged on the opposite sides of the two bracket main bodies 1.

[0054] In this application, the two bracket main bodies 1 are buckled together to fix the battery cell 5 between the two bracket main bodies 1. The limiting plate 12 on the bracket main body 1 can limit and support the battery cell 5 and axially limit the battery cell 5, while the installation holes radially limit the battery cell 5, thereby ensuring the stability of the battery cell 5.

[0055] The battery fixing bracket forms a clamping groove 3 between the buckle 2 on the outer side of the bracket main body 1 and the bracket main body 1. The wire 10 can be clamped and fixed through the clamping groove 3, which can improve the fixing effect on the wire 10 and prevent the wire 10 from being damaged due to shaking.

[0056] An embodiment of this application provides a battery module, including: the above-mentioned battery fixing bracket; and a battery cell 5 arranged in the installation groove 11 of the battery fixing bracket.

[0057] As Figure 5 shown, in this application, the battery module has multiple battery cells 5, and the multiple battery cells 5 are respectively installed in multiple installation grooves 11 of the battery fixing bracket. Specifically, a conductive component 6 and an insulating component 7 are also arranged on the battery fixing bracket. The multiple battery cells 5 are connected in series or in parallel through the conductive component 6, and the insulating component 7 is located on the side of the conductive component 6 away from the battery fixing bracket, playing a role of insulation protection.

[0058] Specifically, the conductive component 6 can be a nickel sheet.

[0059] As Figures 6-7 shown, an embodiment of this application provides a battery pack, including: a housing 8; multiple of the above-mentioned battery modules arranged in the housing 8; and a connector 9 for connecting the multiple battery modules.

[0060] In this application, multiple battery modules are arranged in a battery pack. The battery fixing frames of the multiple battery modules are connected and fixed through a connecting member 9. Specifically, the connecting member 9 is a screw passing through the battery fixing frame, and the screw cooperates with a nut to lock and fix the multiple series-connected battery fixing frames. After the multiple battery modules are fixed, the wire 10 is fixed by the buckle 2 on the battery fixing frame, and then the multiple battery modules are installed in the housing 8 for subsequent encapsulation.

[0061] Specifically, between two adjacent battery modules, they are matched through the positioning posts 13 and positioning holes 14 on the bracket body 1 to ensure the positioning accuracy between the battery modules.

[0062] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" as used herein may also include the plural forms. The terms "comprising", "including", "containing", and "having" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or their combinations. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the particular order described or illustrated, unless the order of performance is explicitly stated. It should also be understood that additional or alternative steps may be used.

[0063] Although the terms first, second, third, etc. may be used herein to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another. Unless the context clearly indicates otherwise, terms such as "first" and "second" and other numerical terms used herein do not imply an order or sequence. Thus, the first element, component, region, layer, or section discussed below may be referred to as the second element, component, region, layer, or section without departing from the teachings of the example embodiments.

[0064] The above description is only the specific embodiments of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application will not be limited to these embodiments shown herein, but rather will conform to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A battery holder, characterized in that: The invention comprises a bracket body (1) and a buckle (2) arranged on the outside of the bracket body (1), wherein the bracket body (1) has a mounting groove (11) for mounting a battery cell (5), the buckle (2) is arranged between two adjacent mounting grooves (11), and a clamping groove (3) for fixing a wire (10) is formed between the buckle (2) and the bracket body (1).

2. The battery holder according to claim 1, characterized in that: One end of the buckle (2) is connected to the bracket body (1), and an opening (4) is left between the other end and the bracket body (1), and the opening (4) is connected to the clamping groove (3), and the wire (10) can enter and exit the clamping groove (3) through the opening (4).

3. The battery holder according to claim 2, characterized in that: A clamping portion (21) is provided on the buckle (2) adjacent to the opening (4), the opening (4) is formed between the clamping portion (21) and the bracket body (1), and the minimum width of the opening (4) in a natural state is smaller than the diameter of the wire (10).

4. The battery holder according to claim 3, characterized in that: The side of the clamping portion (21) facing the bracket body (1) is a smooth arc surface structure.

5. The battery holder according to claim 3, characterized in that: An introduction portion (22) is provided at one end of the buckle (2) adjacent to the opening (4), and the introduction portion (22) smoothly transitions with the clamping portion (21) so that the opening (4) is gradually contracted in a direction of entering the clamping groove (3).

6. The battery holder according to claim 5, characterized in that: The maximum width of the opening (4) in a natural state is greater than the diameter of the wire (10).

7. The battery holder according to claim 1, characterized in that: The buckle (2) is located in the enclosed area of ​​the frames around the bracket body (1).

8. The battery holder according to claim 1, characterized in that: The bracket body (1) further comprises an arc portion (15) which encloses the installation groove (11), and two adjacent arc portions (15) and the buckle (2) enclose the clamping groove (3).

9. The battery holder according to claim 1, characterized in that: Two bracket bodies (1) are provided, and the two bracket bodies (1) are arranged opposite to each other along the axial direction of the battery cell (5), the mounting groove (11) is provided on opposite sides of the two bracket bodies (1), and a limiting plate (12) for limiting the battery cell (5) is provided on opposite sides of the two bracket bodies (1).

10. A battery module, characterized in that: include: The battery holder according to any one of claims 1 to 9; as well as The battery cell (5) is arranged in the mounting groove (11) of the battery fixing frame.

11. The battery module according to claim 10, characterized in that: The battery module also includes a conductive component (6) and an insulating component (7) arranged on the battery fixing frame, the battery cells (5) form a series and / or parallel circuit through the conductive component (6), and the insulating component (7) is located on a side of the conductive component (6) away from the battery fixing frame.

12. A battery pack, characterized in that: include: Housing (8); A plurality of battery modules as claimed in claim 10 or 11, arranged in the housing (8); as well as A connecting member (9) is used to connect a plurality of the battery modules.

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