Busbar fixing structure and battery with same

Abstract

The utility model discloses a busbar fixing structure and a battery with the same, the busbar fixing structure comprises a water cooling plate bracket and a fixing bracket, the water cooling plate bracket is arranged on the side surface of a water cooling plate; the fixing support is detachably connected with the water cooling plate support, and a busbar is detachably installed on the fixing support. According to the busbar fixing structure provided by the embodiment of the utility model, the water cooling plate bracket and the fixing bracket are arranged on the water cooling plate, so that the busbar can be mounted on the water cooling plate, the assembly is simple and convenient, the busbar is not easy to damage, and the risks of short circuit and fire explosion of a battery pack are not easy to cause.

Description

Technical Field

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

[0002] Battery copper or aluminum busbars, also known as busbars, are long conductors with rectangular cross-sections that carry current and connect electrical equipment in circuits. In related technologies, busbars are installed on battery housings or brackets to reduce the risk of the busbar falling off during battery pack vibration. However, the space inside the battery pack is relatively compact, so it is more difficult to fix a longer busbar. After assembly, the busbar is easily damaged, which can easily lead to short circuits and the risk of fire and explosion of the battery pack. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one objective of the present invention is to provide a busbar fixing structure that allows the busbar to be mounted on a water-cooled plate, facilitating simple and convenient assembly while minimizing damage to the busbar and thus minimizing the risk of short circuits and battery pack fires and explosions.

[0004] According to an embodiment of the present invention, the busbar fixing structure includes: a water-cooled plate bracket, which is arranged on the side of the water-cooled plate; a fixing bracket, which is detachably connected to the water-cooled plate bracket, and the busbar is detachably mounted on the fixing bracket.

[0005] According to the busbar fixing structure of the embodiment of the present invention, the busbar can be installed on the water-cooling plate by arranging a water-cooling plate bracket and a fixing bracket on the water-cooling plate. The assembly is simple and convenient, and the busbar is not easily damaged, thereby not easily causing the risk of short circuit and battery pack fire and explosion.

[0006] In addition, the busbar fixing structure according to the present invention may also have the following additional technical features:

[0007] In some embodiments of the present invention, the busbar extends along a first direction, the fixing bracket includes a first leg and a second leg, the first leg and the second leg are respectively located on both sides of the first direction of the fixing bracket, and the busbar fixing structure also includes a wrapping piece, which is used to bundle and connect the busbar and the first leg, and the wrapping piece is also used to bundle and connect the busbar and the second leg.

[0008] In some embodiments of the present invention, the busbar also includes a third leg and a fourth leg, and the third leg and the fourth leg are respectively located on both sides of the second direction of the fixed bracket, the first direction and the second direction are perpendicular to each other, and the third leg and the fourth leg are both detachably connected to the water-cooled plate bracket.

[0009] In some embodiments of the present invention, the busbar fixing structure further includes rivets, which are plastic rivets and are used to fix the third leg and the fourth leg to the water-cooling plate bracket.

[0010] In some embodiments of the present invention, the fixing bracket is an integrally formed cross plate.

[0011] In some embodiments of the present invention, the thickness of the cross plate is greater than or equal to 1 mm.

[0012] In some embodiments of the present invention, a fixed channel is provided between the water-cooling plate bracket and the fixed bracket, and the busbar is arranged in the fixed channel.

[0013] In some embodiments of the present invention, the water-cooling plate bracket is in the shape of a stamped plate, and has a groove opening toward the fixing bracket, and the fixing bracket is closed at the opening to construct the fixing channel.

[0014] In some embodiments of the present invention, the busbar fixing structure further includes a snap-on structure, which is disposed on the outer periphery of the water-cooling plate and is used for fixed connection with the busbar.

[0015] The utility model also provides a battery having the busbar fixing structure of the above embodiment.

[0016] The battery of the present invention, equipped with the busbar fixing structure of the above-described embodiment, can be mounted on a water-cooled plate. This makes assembly simple and convenient, and is less likely to damage the busbar, thereby minimizing the risk of short circuits and battery pack fires and explosions. Furthermore, the water-cooled plate does not require openings for busbar mounting, which does not affect the flow path within the plate.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1This is a structural schematic diagram of the busbar fixing structure and the water cooling plate from a first angle according to an embodiment of the present utility model.

[0020] Figure 2 yes Figure 1 Magnified view of area A in center.

[0021] Figure 3 This is a structural schematic diagram of the busbar fixing structure and the water cooling plate according to the second angle of the embodiment of the utility model.

[0022] Figure 4 It is a cross-sectional view of the busbar fixing structure and the water cooling plate according to an embodiment of the present utility model.

[0023] Figure 5 This is a structural schematic diagram of the busbar fixing structure and the water cooling plate according to the third angle of the embodiment of the present utility model.

[0024] Reference numerals:

[0025] Busbar fixing structure 10,

[0026] Water cooling plate bracket 1, groove 11,

[0027] Fixed bracket 2, first leg 21, second leg 22, third leg 23, fourth leg 24,

[0028] Wrapping piece 3, rivet 4, fixing channel 5, snap-fit ​​structure 6,

[0029] Water cooling plate 20, busbar 30. DETAILED DESCRIPTION

[0030] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0032] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0033] The battery copper busbar or aluminum busbar is also called the busbar 30. It is a long conductor with a rectangular cross-section. It plays the role of transmitting current and connecting electrical equipment in the circuit. In the related art, the busbar 30 is installed on the battery housing or bracket, which can reduce the risk of the busbar 30 falling off during the vibration of the battery pack. However, the space inside the battery pack is relatively compact, so it is more difficult to fix the longer busbar 30. After assembly, the busbar 30 is easily damaged, which can easily cause a short circuit and the risk of fire and explosion of the battery pack.

[0034] Based on this, the present application proposes a busbar fixing structure 10, which can install the busbar 30 on the water-cooled plate 20. The assembly is simple and convenient, and it is not easy to damage the busbar 30, thereby not easily causing the risk of short circuit and battery pack fire and explosion.

[0035] Reference below Figure 1-Figure 5 A busbar fixing structure 10 according to an embodiment of the present invention is described.

[0036] According to an embodiment of the present invention, the busbar fixing structure 10 includes a water-cooled plate bracket 1 and a fixing bracket 2. The water-cooled plate bracket 1 is arranged on the side of the water-cooled plate 20. For example, when the water-cooled plate 20 is integrally formed, the water-cooled plate bracket 1 can be integrally formed on the water-cooled plate 20, or the water-cooled plate bracket 1 can be welded to the water-cooled plate 20. This application does not impose any restrictions.

[0037] Furthermore, the fixing bracket 2 is detachably connected to the water-cooling plate bracket 1, and the busbar 30 is detachably mounted on the fixing bracket 2. In other words, the fixing bracket 2 can be removed from the water-cooling plate bracket 1 after being mounted thereon. Thus, the busbar 30 can be first fixed to the fixing bracket 2 and then mounted on the water-cooling plate bracket 1. This simplifies assembly and is less likely to damage the busbar 30. Furthermore, disassembly of the busbar 30 is also simple and convenient.

[0038] In addition, there is sufficient space at the water-cooling plate 20 of the battery, and the water-cooling plate 20 can also protect the busbar 30 to a certain extent, thereby making the busbar 30 less likely to be damaged.

[0039] Therefore, according to the busbar fixing structure 10 of the embodiment of the present invention, the busbar 30 can be installed on the water-cooled plate 20 by arranging the water-cooled plate bracket 1 and the fixing bracket 2 on the water-cooled plate 20. The assembly is simple and convenient, and it is not easy to damage the busbar 30, thereby not easily causing the risk of short circuit and battery pack fire and explosion.

[0040] In some embodiments of the present invention, the busbar 30 extends along a first direction, the fixing bracket 2 includes a first leg 21 and a second leg 22, and the first leg 21 and the second leg 22 are respectively located on both sides of the first direction of the fixing bracket 2, and the busbar fixing structure 10 also includes a wrapping member 3, which is used to bundle and connect the busbar 30 and the first leg 21, and the wrapping member 3 is also used to bundle and connect the busbar 30 and the second leg 22.

[0041] Reference Attachment Figure 1-Figure 5 As shown, the wrapping member 3 can be a binding tape or an adhesive tape, which can reduce the fixing cost of the busbar 30, and the binding tape or the adhesive tape is not easy to damage the busbar 30, which can improve safety. Figure 1-Figure 5 In the first direction, a plurality of fixing brackets 2 are provided, and each fixing bracket 2 has a first leg 21 and a second leg 22. Therefore, by bundling the busbar 30 at multiple positions, the fixing strength of the busbar 30 can be improved, making the busbar 30 less likely to fall off.

[0042] Exemplarily, the first leg 21 and the second leg 22 both extend in the first direction, and the width of the first leg 21 and the second leg 22 in the second direction is equal to the width of the busbar 30. Thus, the first leg 21 and the second leg 22 can better protect the busbar 30 and strengthen its structure.

[0043] In some embodiments of the present invention, the busbar 30 further includes a third leg 23 and a fourth leg 24. The third leg 23 and the fourth leg 24 are respectively located on either side of the second direction of the fixing bracket 2, with the first direction and the second direction being perpendicular to each other. The third leg 23 and the fourth leg 24 are both detachably connected to the water-cooled plate bracket 1. Thus, the third leg 23 is connected to the water-cooled plate 20 to form a first connection position, and the fourth leg 24 is connected to the water-cooled plate 20 to form a second connection position. The busbar 30 is fixed between the first and second connection positions, which can improve the reliability of the busbar 30 after being fixed.

[0044] Optionally, the busbar fixing structure 10 further includes a rivet 4, which is a plastic rivet 4, and is used to fix the third leg 23 and the fourth leg 24 to the water-cooled plate bracket 1. In other words, rivet holes 4 are provided on the third leg 23, the fourth leg 24, and the water-cooled plate bracket 1, and the water-cooled plate bracket 1 and the fixing bracket 2 can be fixedly connected relatively firmly through the rivet 4. In addition, the rivet 4 of the present application is a plastic rivet 4. On the one hand, the cost of the plastic rivet 4 is low. On the other hand, compared with the metal rivet 4, the plastic rivet 4 is not easy to damage the insulation layer of the busbar 30 even if it does not contact the busbar 30 during the assembly process, which can better avoid damage to the insulation layer of the busbar 30.

[0045] In some embodiments of the present invention, the fixed bracket 2 is an integrally formed cross plate, and thus the four branches of the cross plate are the first leg 21, the second leg 22, the third leg 23 and the fourth leg 24, respectively. The cross plate has a simple structure and low production cost, which can further reduce costs.

[0046] Exemplarily, the fixing bracket 2 is integrally formed of epoxy resin.

[0047] Optionally, the thickness of the cross plate is greater than or equal to 1 mm, thereby better ensuring the structural strength of the cross plate. Furthermore, reinforcing ribs can be provided on the side of the cross plate to further improve the structural strength of the cross plate.

[0048] In some embodiments of the present invention, a fixing channel 5 is provided between the water-cooled plate bracket 1 and the fixing bracket 2, and the busbar 30 is passed through the fixing channel 5, thereby further improving the reliability of the fixing of the busbar 30 and reducing the risk of the busbar 30 falling off.

[0049] Optionally, the water-cooling plate bracket 1 is a stamped plate having a groove 11 opening toward the fixing bracket 2, and the fixing bracket 2 is closed at the opening to form a fixing channel 5. Thus, the water-cooling plate bracket 1 has a simple structure and low production cost.

[0050] Exemplarily, the groove depth of the groove 11 is between 100 mm and 300 mm. It can be understood that if the groove depth of the groove 11 is large, it will easily affect the installation efficiency of the busbar 30, that is, the busbar 30 will easily shake when installed in the fixed channel 5, while the groove depth is small, and it will easily increase the difficulty of production and assembly. Therefore, meeting the above conditions can reduce the production cost and installation difficulty.

[0051] In some embodiments of the present invention, the busbar fixing structure 10 further includes a snap-fit ​​structure 6 , which is disposed on the outer periphery of the water-cooling plate 20 and is used for fixed connection with the busbar 30 .

[0052] Reference Attachment Figure 1-Figure 5 As shown, there is no water channel on the outer periphery of the water-cooling plate 20, but a snap-fit ​​structure 6 is provided on the outer periphery of the water-cooling plate 20. The busbar 30 can be first installed on the snap-fit ​​structure 6, which can play a role in positioning the busbar 30, and then the busbar 30 can be further fixed by the water-cooling plate bracket 1 and the fixing bracket 2, which can reduce the difficulty of assembly and improve the assembly efficiency.

[0053] The present utility model also provides a battery having the busbar fixing structure 10 of the above embodiment.

[0054] The battery of the present invention, equipped with the busbar fixing structure 10 of the above-described embodiment, allows the busbar 30 to be mounted on the water-cooling plate 20. This makes assembly simple and convenient, and is less likely to damage the busbar 30, thereby minimizing the risk of short circuits and battery pack fire and explosion. Furthermore, the water-cooling plate 20 does not require openings for mounting the busbar 30, which does not affect the flow path within the water-cooling plate 20.

[0055] Other structures and operations of the busbar fixing structure 10 and the battery according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail here.

[0056] Throughout this specification, references to terms such as "some embodiments," "optionally," "further," or "some examples" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0057] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A busbar fixing structure, characterized in that: include: A water-cooling plate bracket, wherein the water-cooling plate bracket is arranged on the side of the water-cooling plate; A fixing bracket is detachably connected to the water-cooling plate bracket, and the busbar is detachably mounted on the fixing bracket.

2. The busbar fixing structure according to claim 1, characterized in that: The busbar extends along a first direction, and the fixing bracket includes a first leg and a second leg, and the first leg and the second leg are respectively located on both sides of the first direction of the fixing bracket. The busbar fixing structure also includes a wrapping piece, and the wrapping piece is used to bundle and connect the busbar and the first leg, and the wrapping piece is also used to bundle and connect the busbar and the second leg.

3. The busbar fixing structure according to claim 2, characterized in that: The busbar also includes a third leg and a fourth leg, and the third leg and the fourth leg are respectively located on both sides of the second direction of the fixed bracket, the first direction and the second direction are perpendicular to each other, and the third leg and the fourth leg are both detachably connected to the water-cooled plate bracket.

4. The busbar fixing structure according to claim 2, characterized in that: The busbar fixing structure further includes rivets, which are plastic rivets and are used to fix the third leg and the fourth leg on the water-cooling plate bracket.

5. The busbar fixing structure according to claim 1, characterized in that: The fixing bracket is an integrally formed cross plate.

6. The busbar fixing structure according to claim 5, characterized in that: The thickness of the cross plate is greater than or equal to 1 mm.

7. The busbar fixing structure according to claim 1, characterized in that: A fixed channel is provided between the water-cooling plate bracket and the fixed bracket, and the busbar is arranged in the fixed channel.

8. The busbar fixing structure according to claim 7, characterized in that: The water-cooling plate bracket is in the shape of a stamped plate and has a groove with an opening facing the fixing bracket. The fixing bracket is closed at the opening to construct the fixing channel.

9. The busbar fixing structure according to claim 1, characterized in that: It also includes a snap-on structure, which is arranged on the outer periphery of the water-cooling plate and is used to be fixedly connected to the busbar.

10. A battery, characterized in that: The busbar fixing structure comprises the busbar fixing structure according to any one of claims 1 to 9.

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