Fixing structure and battery pack

Abstract

The utility model provides a fixing structure and a battery pack, the fixing structure is used for fixing a soft copper bar and a heating film, and comprises a mounting seat, a bottom plate, a first slide block and a second slide block; the mounting seat is used for mounting and fixing; the bottom plate is connected with the mounting seat; the first sliding block comprises a sliding seat and a top plate, the sliding seat is slidably mounted on the bottom plate, and the top plate is connected with the top of the sliding seat and parallel to the top surface of the bottom plate; the second sliding block is installed on the bottom plate in a sliding mode and movably connected with the top plate, and a restraining groove is defined by the second sliding block, the top plate, the sliding base and the top face of the bottom plate and used for fixing a soft copper bar or a heating film. The copper bar and the heating film are fixed through the constraint groove, so that the interference wear risk is avoided, and the stability and safety of the battery are improved; in addition, the width of the restraining groove can be adjusted according to sliding of the sliding base and the second sliding block, restraining and fixing of the soft copper bars with different widths can be used, and therefore the applicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a fixing structure and a battery pack. Background Art

[0002] With the continuous development of new energy technologies, the application fields of power batteries are becoming more and more extensive, and the requirements for the internal layout of batteries are becoming higher and higher. It is known that the internal modules of power batteries are generally connected in series with soft copper busbars due to the long distance between the poles, and the module thermal management heating method generally adopts the side-adhered heating film solution. Due to the space occupied by the modules, BMU, and other accessories in the battery pack, the space left for the layout of the copper busbar and the layout of the heating film is limited. The bridging method of the copper busbar and the bridging method of the module side heating film increases the risk of interference wear due to the narrow gap and the uncertainty of its own state, which seriously affects the stability and safety of the battery. Utility Model Content

[0003] In view of this, the utility model proposes a fixed structure and a battery pack to solve the technical problems proposed in the above background technology that the space left for the arrangement of the copper busbar and the arrangement of the heating film is limited, and the cross-connection method of the copper busbar and the heating film has the risk of interference and wear, which seriously affects the stability and safety of the battery.

[0004] The technical solution of the utility model is achieved in this way:

[0005] In a first aspect, the utility model provides a fixing structure for fixing a soft copper busbar and a heating film, comprising a mounting seat, a bottom plate, a first slider and a second slider, wherein:

[0006] The mounting seat is used for installation and fixing;

[0007] The base plate is connected to the mounting seat;

[0008] The first sliding block includes a sliding seat and a top plate, the sliding seat is slidably mounted on the bottom plate, and the top plate is connected to the top of the sliding seat and is parallel to the top surface of the bottom plate;

[0009] The second slider is slidably mounted on the bottom plate, the second slider is movably connected to the top plate, and a constraint groove is formed between the second slider, the top plate, the sliding seat and the top surface of the bottom plate, and the constraint groove is used to fix the soft copper busbar or the heating film.

[0010] On the basis of the above technical solution, preferably, the bottom plate comprises an upper plate and a lower plate formed in one piece, and the width of the lower plate is smaller than the width of the upper plate;

[0011] The sliding seat includes a sliding seat body and a first sliding groove, wherein the first sliding groove is arranged at the bottom of the sliding seat body, the first sliding groove is T-shaped, and the first sliding groove is slidably installed on the upper plate along the length direction of the upper plate.

[0012] On the basis of the above technical solution, preferably, a first locking tongue is protruding from the bottom of the first sliding groove, and a first slot and a second slot are respectively provided at both ends of the connection position between the first sliding groove and the sliding seat body; and a serrated structure cooperating with the first locking tongue is provided at both ends of the lower plate along the width direction.

[0013] Based on the above technical solution, preferably, the second slider includes an integrally formed slider body and a second slide groove, the second slide groove is arranged at the bottom of the slider body, the second slide groove is T-shaped, and the second slide groove is slidably installed on the upper plate along the length direction of the upper plate.

[0014] On the basis of the above technical solution, preferably, a second locking tongue is protruding from the bottom of the second sliding groove, and a third slot and a fourth slot are respectively provided at both ends of the connection position between the second sliding groove and the slider body, so that the second locking tongue has elasticity.

[0015] On the basis of the above technical solution, preferably, a guide hole is provided on the slider body, and the top plate is slidably disposed in the guide hole.

[0016] On the basis of the above technical solution, preferably, a clamping groove is provided on a side of the lower plate away from the upper plate, and a clamping protrusion is provided on the mounting seat, and the clamping protrusion is clamped in the clamping groove.

[0017] On the basis of the above technical solution, preferably, a first limiting portion is provided in the snap-in groove, and a second limiting portion is provided on the mounting seat, and when the snap-in protrusion is snapped to the end of the snap-in groove, the first limiting portion and the second limiting portion engage with each other.

[0018] On the basis of the above technical solution, preferably, a connecting portion is provided at the bottom of the mounting seat, and the connecting portion adopts a clamping structure or a screw.

[0019] In the second aspect, the utility model proposes a battery pack, comprising an end plate and a plurality of battery modules, and the fixing structure described in the first aspect; the plurality of battery modules are arranged side by side, the soft copper busbar connects the battery modules, and the heating film is adhered to the side of the battery module; the fixing structure is installed on the front side of the end plate, the side of the end plate and the top of the battery module to fix the soft copper busbar and the heating film.

[0020] The fixing structure of the utility model has the following beneficial effects compared with the prior art:

[0021] (1) The sliding seat is slidably mounted on the bottom plate, the second slider is slidably mounted on the bottom plate, the second slider is movably connected to the top plate, the second slider, the top plate, the sliding seat and the top surface of the bottom plate form a constraint groove, the copper bar and the heating film are fixed by the constraint groove, the risk of interference wear is avoided, thereby improving the stability and safety of the battery; in addition, the width of the constraint groove can be adjusted according to the sliding of the sliding seat and the second slider, and soft copper bars of different widths can be used for constraint and fixation, thereby improving the applicability of the device;

[0022] (2) A first locking tongue is protruded through the bottom of the first slide groove, and a first slot and a second slot are respectively provided at both ends of the connection position between the first slide groove and the slide seat body, so that the first locking tongue has elasticity; both ends of the lower plate along the width direction are provided with a serration structure that cooperates with the first locking tongue, and after the first slide groove slides to a required position, the serration structure can lock the first locking tongue to prevent the constraint groove from becoming loose, thereby improving the stability and reliability of the constraint;

[0023] (3) A second locking tongue is protruded through the bottom of the second sliding groove, and a third slot and a fourth slot are respectively provided at both ends of the connection position between the second sliding groove and the slider body, so that the second locking tongue has elasticity. After the second sliding groove slides to a required position, the serrated structure can lock the second locking tongue to prevent the constraint groove from becoming loose, thereby improving the stability and reliability of the constraint;

[0024] (4) A guide hole is provided on the slider body, and the top plate is slidably set in the guide hole, so as to realize the movable connection between the top plate and the second slider. While maintaining the connection, the sliding of the slide body can be guided to realize the double guidance of the slide body, thereby improving the reliability and stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural schematic diagram of the fixing structure of the utility model;

[0027] Figure 2 It is an exploded view of the fixing structure of the utility model;

[0028] Figure 3 It is a structural schematic diagram of the bottom plate of the utility model;

[0029] Figure 4 It is a structural schematic diagram of the first sliding block of the utility model;

[0030] Figure 5 It is a structural schematic diagram of the second sliding block of the utility model;

[0031] Figure 6 This is a structural schematic diagram of a mounting seat of the utility model;

[0032] Figure 7 It is a structural schematic diagram of another mounting seat of the utility model;

[0033] Figure 8 It is a schematic diagram of the structure of the battery pack of the utility model;

[0034] Fig. 9 For the utility model Figure 8 The structural diagram of the middle A part;

[0035] Fig.10 For the utility model Figure 8 The structural diagram of the middle B part;

[0036] Fig.11 For the utility model Figure 8 Schematic diagram of the structure of part C in the middle.

[0037] Description of reference numerals: 1-mounting seat, 2-bottom plate, 3-first slider, 4-second slider;

[0038] 00 - Constraint slot;

[0039] 100-end plate, 200-battery module, 300-soft copper busbar, 400-heating film;

[0040] 11-clamping protrusion, 12-second limiting portion, 13-connecting portion, 131-clamping structure, 1311-clamping groove, 1312-elastic locking tongue;

[0041] 21-upper plate, 22-lower plate, 221-sawtooth structure, 23-clamping groove, 24-first limiting portion;

[0042] 31-sliding seat, 311-sliding seat body, 312-first sliding groove, 313-first locking tongue, 314-first slot, 315-second slot, 32-top plate;

[0043] 41 - slider body, 411 - guide hole, 42 - second slide groove, 43 - second locking tongue, 44 - third slot, 45 - fourth slot. DETAILED DESCRIPTION

[0044] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] Embodiment 1

[0046] Reference Figure 1-Figure 7 As shown, this embodiment proposes a fixing structure for fixing the soft copper busbar and the heating film, including a mounting seat 1, a base plate 2, a first slider 3 and a second slider 4, wherein:

[0047] The mounting base 1 is used for installation and fixing, and the mounting base 1 is installed on the end plate of the battery pack and the top of the battery module;

[0048] The bottom plate 2 is connected to the mounting seat 1;

[0049] The first sliding block 3 includes a sliding seat 31 and a top plate 32. The sliding seat 31 is slidably mounted on the bottom plate 2. The top plate 32 is connected to the top of the sliding seat 31 and is parallel to the top surface of the bottom plate 2.

[0050] The second slider 4 is slidably installed on the bottom plate 2, and the second slider 4 is movably connected to the top plate 32. The second slider 4, the top plate 32, the sliding seat 31 and the top surface of the bottom plate 2 form a constraint groove 00, and the constraint groove 00 is used to fix the soft copper busbar or the heating film.

[0051] The fixing structure proposed in this embodiment is slidably installed on the bottom plate 2 through the sliding seat 31, and the second slider 4 is slidably installed on the bottom plate 2. The second slider 4 is movably connected to the top plate 32. The second slider 4, the top plate 32, the sliding seat 31 and the top surface of the bottom plate 2 form a constraint groove 00. The copper busbar and the heating film are fixed by the constraint groove 00 to avoid the risk of interference wear, thereby improving the stability and safety of the battery; in addition, the width of the constraint groove 00 can be adjusted according to the sliding of the sliding seat 31 and the second slider 4, and soft copper busbars of different widths can be used for constraint and fixation, thereby improving the applicability of the device.

[0052] In some embodiments, the bottom plate 2 includes an upper plate 21 and a lower plate 22 formed in one piece, the width of the lower plate 22 is smaller than the width of the upper plate 21; the sliding seat 31 includes a sliding seat body 311 and a first sliding groove 312, the first sliding groove 312 is arranged at the bottom of the sliding seat body 311, the first sliding groove 312 is T-shaped, and the first sliding groove 312 is slidably installed on the upper plate 21 along the length direction of the upper plate 21. By setting the first sliding groove 312 in a T-shape, when the first sliding groove 312 slides on the upper plate 21, the bottom of the first sliding groove 312 can abut against the bottom of the upper plate 21 and engage with each other, so that the first sliding groove 312 can slide on the upper plate 21 more smoothly, thereby improving the stability and reliability of the device.

[0053] In some embodiments, a first locking tongue 313 is protruded from the bottom of the first slide groove 312, and a first slot 314 and a second slot 315 are respectively provided at both ends of the connection position between the first slide groove 312 and the slide body 311; and a sawtooth structure 221 cooperating with the first locking tongue 313 is provided at both ends of the lower plate 22 in the width direction. The first slot 314 and the second slot 315 are respectively provided at both ends of the connection position between the first slide groove 312 and the slide body 311, so that the first locking tongue 313 has elasticity and can expand outward when the first slide groove 312 slides; after the first slide groove 312 slides to the required position, the sawtooth structure 221 can lock the first locking tongue 313 to prevent the constraint groove 00 from becoming loose, thereby improving the stability and reliability of the constraint.

[0054] In some embodiments, the second slider 4 includes an integrally formed slider body 41 and a second slide groove 42, the second slide groove 42 is arranged at the bottom of the slider body 41, the second slide groove 42 is T-shaped, and the second slide groove 42 is slidably installed on the upper plate 21 along the length direction of the upper plate 21. By setting the second slide groove 42 in a T-shape, when the second slide groove 42 slides on the upper plate 21, the bottom of the second slide groove 42 can abut against the bottom of the upper plate 21 and engage with each other, so that the second slide groove 42 can slide more smoothly on the upper plate 21, thereby improving the stability and reliability of the device.

[0055] In some embodiments, a second locking tongue 43 is protruding from the bottom of the second slide groove 42, and a third slot 44 and a fourth slot 45 are respectively provided at both ends of the connection position between the second slide groove 42 and the slider body 41, so that the second locking tongue 43 is elastic. The third slot 44 and the fourth slot 45 are respectively provided at both ends of the connection position between the second slide groove 42 and the slider body 41, so that the second locking tongue 43 is elastic, and the second locking tongue 43 can expand outward when the second slide groove 42 slides. After the second slide groove 42 slides to the required position, the sawtooth structure 221 can lock the second locking tongue 43 to prevent the constraint groove 00 from becoming loose, further improving the stability and reliability of the constraint.

[0056] In some embodiments, the slider body 41 is provided with a guide hole 411, and the top plate 32 is slidably disposed in the guide hole 411. By providing the guide hole 411 on the slider body 41, the top plate 32 is slidably disposed in the guide hole 411, so that the top plate 32 and the second slider 4 are movably connected, and while maintaining the connection, the sliding of the slide body 311 can be guided, so that the double guidance of the slide body 311 is realized, and the reliability and stability of the device are improved.

[0057] In some embodiments, a clamping groove 23 is provided on a side of the lower plate 22 away from the upper plate 21, and a clamping protrusion 11 is provided on the mounting seat 1, and the clamping protrusion 11 is clamped in the clamping groove 23. By clamping the clamping protrusion 11 in the clamping groove 23, a detachable connection between the lower plate 22 and the mounting seat 1 is achieved, which is convenient for installation and disassembly and improves convenience.

[0058] In some embodiments, a first limiting portion 24 is provided in the clamping groove 23, and a second limiting portion 12 is provided on the mounting seat 1. When the clamping protrusion 11 is clamped to the end of the clamping groove 23, the first limiting portion 24 and the second limiting portion 12 are engaged with each other. By the mutual engagement of the first limiting portion 24 and the second limiting portion 12, after the clamping protrusion 11 is clamped to the clamping groove 23, the clamping protrusion 11 can be prevented from falling out of the clamping groove 23, thereby improving the stability of the connection.

[0059] In some embodiments, a connecting portion 13 is provided at the bottom of the mounting base 1, and the connecting portion 13 adopts a clamping structure 131. Figure 6 As shown, the clamping structure 131 includes a clamping groove 1311 and an elastic locking tongue 1312. The side wall of the clamping groove 1311 is elastic. There are at least two elastic locking tongues 1312. The at least two elastic locking tongues 1312 are respectively arranged on the two side walls of the clamping groove, and are used to rebound after being clamped into the connecting part 13, so as to limit the clamping and make the connection.

[0060] In some embodiments, Figure 7 As shown, the bottom of the mounting seat 1 is provided with a connecting portion 13, and the connecting portion 13 adopts screws. By adopting screws at the connecting portion 13, when the space is small and it is not convenient to use the above clamping structure 131, a threaded hole can be started at the connection position, and the screw is connected to the threaded hole to realize the connection of the mounting seat 1.

[0061] The working principle of the fixed structure is: the sliding seat 31 is slidably installed on the bottom plate 2, the second slider 4 is slidably installed on the bottom plate 2, the second slider 4 is movably connected to the top plate 32, and the second slider 4, the top plate 32, the sliding seat 31 and the top surface of the bottom plate 2 form a constraint groove 00, the top plate 32 is slidably set in the guide hole 411, and the double guidance of the sliding seat body 311 is realized through the guide hole 411 and the upper plate 21. The width of the constraint groove 00 can be adjusted according to the sliding of the sliding seat 31 and the second slider 4, and soft copper bars of different widths can be used for constraint and fixation, thereby improving the applicability of the device, and the copper bar and the heating film are fixed by the constraint groove 00 to avoid the risk of interference wear, thereby improving the stability and safety of the battery.

[0062] Embodiment 2

[0063] This embodiment proposes a battery pack, combined with Figure 8-Figure 11 As shown, it includes an end plate 100 and a plurality of battery modules 200, and the fixing structure described in the first embodiment; the plurality of battery modules 200 are arranged side by side, the soft copper busbar 300 connects the battery modules 200, and the heating film 400 is pasted on the side of the battery module 200; the fixing structure is installed on the front side of the end plate 100 (see Fig. 9 ), the side of the end plate 100 (see Fig.10 ) and the top of the battery module 200 (see Fig.11 ) to fix the soft copper bus 300 and the heating film 400.

[0064] The battery pack proposed in this embodiment is installed on the front side of the end plate 100, the side of the end plate 100 and the top of the battery module 200 through a fixing structure to realize the constraint and fixation of the soft copper busbar 300 and the heating film 400. The width of the constraint groove 00 can be adjusted according to the sliding of the sliding seat 31 and the second sliding block 4, and the constraint and fixation of soft copper busbars 300 of different widths can be used, thereby improving the applicability of the device.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fixing structure for fixing a soft copper busbar and a heating film, characterized in that: It includes a mounting seat, a base plate, a first slider and a second slider, wherein: The mounting seat is used for installation and fixing; The base plate is connected to the mounting seat; The first sliding block includes a sliding seat and a top plate, the sliding seat is slidably mounted on the bottom plate, and the top plate is connected to the top of the sliding seat and is parallel to the top surface of the bottom plate; The second slider is slidably mounted on the bottom plate, the second slider is movably connected to the top plate, and a constraint groove is formed between the second slider, the top plate, the sliding seat and the top surface of the bottom plate, and the constraint groove is used to fix the soft copper busbar or the heating film.

2. The fixing structure according to claim 1, characterized in that: The bottom plate includes an upper plate and a lower plate formed in one piece, and the width of the lower plate is smaller than the width of the upper plate; The sliding seat includes a sliding seat body and a first sliding groove, wherein the first sliding groove is arranged at the bottom of the sliding seat body, the first sliding groove is T-shaped, and the first sliding groove is slidably installed on the upper plate along the length direction of the upper plate.

3. The fixing structure according to claim 2, characterized in that: A first locking tongue is protruding from the bottom of the first slide groove, and a first slot and a second slot are respectively provided at both ends of the connection position between the first slide groove and the slide seat body; and a serrated structure cooperating with the first locking tongue is provided at both ends of the lower plate along the width direction.

4. The fixing structure according to claim 3, characterized in that: The second sliding block includes an integrally formed sliding block body and a second sliding groove, wherein the second sliding groove is arranged at the bottom of the sliding block body, the second sliding groove is T-shaped, and the second sliding groove is slidably installed on the upper plate along the length direction of the upper plate.

5. The fixing structure according to claim 4, characterized in that: A second locking tongue is protruding from the bottom of the second sliding groove, and a third slot and a fourth slot are respectively provided at both ends of the connection position between the second sliding groove and the slider body, so that the second locking tongue has elasticity.

6. The fixing structure according to claim 5, characterized in that: The slider body is provided with a guide hole, and the top plate is slidably arranged in the guide hole.

7. The fixing structure according to any one of claims 2 to 6, characterized in that: A clamping groove is arranged on one side of the lower plate away from the upper plate, and a clamping protrusion is arranged on the mounting seat, and the clamping protrusion is clamped in the clamping groove.

8. The fixing structure according to claim 7, characterized in that: A first limiting portion is arranged in the clamping groove, and a second limiting portion is arranged on the mounting seat. When the clamping protrusion is clamped at the end of the clamping groove, the first limiting portion and the second limiting portion are engaged with each other.

9. The fixing structure according to claim 8, characterized in that: A connecting portion is provided at the bottom of the mounting seat, and the connecting portion adopts a clamping structure or a screw.

10. A battery pack, characterized in that: It comprises an end plate and a plurality of battery modules, and a fixing structure as described in any one of claims 1 to 9; the plurality of battery modules are arranged side by side, the soft copper busbar connects the battery modules, and the heating film is adhered to the side of the battery module; the fixing structure is installed on the front side of the end plate, the side of the end plate and the top of the battery module to fix the soft copper busbar and the heating film.

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