Support and battery pack

Abstract

The support comprises a side plate and a bottom plate, the side plate is used for installing a functional assembly, one side of the bottom plate is connected to the side plate, the other side of the bottom plate is provided with an avoiding structure, the avoiding structure is provided with at least one fixing hole, and the fixing hole and the functional assembly are arranged in a staggered mode so as to avoid the functional assembly. And the electric screwdriver is not easy to interfere with the functional assembly.

Description

Technical Field

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

[0002] In the related art, the structure of the bracket is complex and punching is difficult, resulting in high mold design costs. Before installing the fire-fighting device and the fuse on the bracket, it is necessary to first install the first mounting bracket for installing the fuse and the second mounting bracket for installing the fire-fighting device on the side panel of the bracket respectively. After the installation is completed, the bracket is locked to the box body with bolts. Due to the unreasonable design of the first mounting bracket and the second mounting bracket on the bracket, during the bolt locking process, the electric screwdriver will interfere with the first mounting bracket and the second mounting bracket, resulting in inconvenience in installation.

[0003] Therefore, in the related art, there is a technical problem that the bracket may interfere with the first mounting bracket and the second mounting bracket during the locking process of the box. Utility Model Content

[0004] The embodiments of the present invention provide a bracket and a battery pack, which can improve the technical problem in the related art that the bracket may interfere with the first mounting bracket and the second mounting bracket during the locking process of the bracket and the box.

[0005] In a first aspect, an embodiment of the present invention provides a bracket, comprising:

[0006] A side panel and a bottom panel, wherein the side panel is used to install functional components, and one side edge of the bottom panel is connected to the side panel;

[0007] Wherein, the other side of the bottom plate is provided with an avoidance structure and is provided with at least one fixing hole, and the fixing hole and the functional component are staggered to avoid the functional component.

[0008] In one embodiment, the avoidance structure is a protrusion.

[0009] In one embodiment, the avoidance structure and the functional component are located on the same side of the side plate, and an inner wall of the fixing hole and the functional component have a gap in a direction from the one side of the bottom plate to the other side of the bottom plate.

[0010] In one embodiment, the gap has a range greater than 2 mm.

[0011] In one embodiment, the functional component includes a first functional part and a second functional part, the other side of the base plate is provided with a first avoidance structure and a second avoidance structure, the fixing hole includes a first fixing hole located on the first avoidance structure, and a second fixing hole located on the second avoidance structure, there is a first gap between the inner wall of the first fixing hole and the first functional part, there is a second gap between the inner wall of the second fixing hole and the second functional part, and the gap includes the first gap and the second gap.

[0012] In one embodiment, a ratio of a distance between the first fixing hole and the second fixing hole in an extending direction of the other side of the bottom plate to a length of the other side of the bottom plate is in a range of 0.4 to 0.6.

[0013] In one embodiment, a notch is provided on a side of the first functional component away from the side plate, and an orthographic projection of the notch on the bottom plate exposes the corresponding first fixing hole.

[0014] In one embodiment, the ratio of the dimension of the avoidance structure in the extension direction of the other side of the base plate to the dimension of the avoidance structure in the direction from the one side of the base plate to the other side of the base plate is greater than 2.

[0015] In one embodiment, the side panels, the bottom panel and the avoidance structure are integrally formed.

[0016] In a second aspect, an embodiment of the present invention provides a battery pack comprising a bracket as described in any of the above embodiments.

[0017] Beneficial effects of the embodiments of the present utility model:

[0018] In an embodiment of the present utility model, the bracket includes a base plate and a side plate, one side of the base plate is connected to the side plate, and the other side of the base plate is provided with an avoidance structure. By setting the fixing hole on the avoidance structure, the fixing hole and the functional component are staggered to avoid the functional component, thereby alleviating the technical problem in the related technology that the bracket will interfere with the first mounting bracket and the second mounting bracket during the locking process of the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1is the stereogram of the support and the functional assembly installed on the support provided by the embodiment of the utility model;

[0021] Figure 2 is the top view schematic diagram of the support and the functional assembly installed on the support provided by the embodiment of the utility model;

[0022] Figure 3 is the process state diagram of the support after being bent twice provided by the embodiment of the utility model;

[0023] Figure 4 is the stereogram of the support provided by the embodiment of the utility model

[0024] Figure 5 is the stereogram of the battery pack provided by the embodiment of the utility model. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the utility model. In addition, it should be understood that the specific embodiments described herein are only used for illustrating and explaining the utility model, and are not used for limiting the utility model. In the utility model, the orientation words such as "upper" and "lower" are generally used for indicating the upper and lower in the actual use or working state of the device, and the specific is the drawing direction in the drawings, and "inner" and "outer" are used for the contour of the device.

[0026] In addition, the terms "first", "second" and similar words do not represent any order, quantity or importance, but are only used for distinguishing different technical features. The term "multiple" and similar words represent two or more than two, unless otherwise explicitly limited.

[0027] Please refer to Figure 1 、 Figure 2 、 Figure 4 The support 1 provided by the embodiment of the utility model comprises a side plate 11 and a bottom plate 12, the side plate 11 is used for installing a functional assembly 2, one side of the bottom plate 12 is connected to the side plate 11, the other side of the bottom plate 12 is provided with a avoiding structure 3, and at least one fixing hole 4 is arranged, the fixing hole 4 is arranged in a staggered manner with the functional assembly 2 to avoid the functional assembly 2.

[0028] The functional assembly 2 can be a mounting rack.

[0029] In this embodiment, the bracket 1 is provided with an avoidance structure 3, and the fixing hole 4 is provided on the avoidance structure 3, so that the fixing hole 4 is misaligned with the functional component 2. When the electric screwdriver installs the first bolt and the fixing hole 4, the fixing hole 4 and the functional component 2 avoid each other, and the electric screwdriver is not easy to interfere with the functional component 2, which alleviates the technical problem in the related technology that the bracket 1 will interfere with the first mounting bracket and the second mounting bracket during the locking process with the box body 6.

[0030] The technical solution of this application is now described in conjunction with specific embodiments.

[0031] In one embodiment, see Figure 1 and Figure 4 , the avoidance structure 3 is a convexity.

[0032] The protrusion extends in a direction from one side of the bottom plate 12 toward the other side of the bottom plate 12 .

[0033] The contour shape of the protrusion can be any one of a rectangle, a trapezoid, a triangle, a semi-ellipse, and a semi-circle.

[0034] The protrusion can be extended from the bottom plate 12 .

[0035] In this embodiment, the avoidance structure 3 is a protrusion, which extends along one side of the base plate 12 toward the other side of the base plate 12 to avoid the functional component 2 and prevent interference caused by the functional component 2.

[0036] In one embodiment, see Figure 1 The avoidance structure 3 and the functional component 2 are located on the same side of the side plate 11 , and there is a gap between the inner wall of the fixing hole 4 and the functional component 2 in a direction from one side of the bottom plate 12 to the other side of the bottom plate 12 .

[0037] The inner wall of the fixing hole 4 is the inner wall of the fixing hole 4 facing one end of the side plate 11 .

[0038] The gap refers to the distance between the inner wall of the fixing hole 4 and the functional component 2 from a perspective perpendicular to the bottom plate 12 .

[0039] The gap is the minimum distance between the inner wall of the fixing hole 4 and the functional component 2 .

[0040] In one embodiment, the gap has a range greater than 2 mm.

[0041] It can be understood that since the thickness of the electric screwdriver sleeve is usually less than or equal to 2 mm, the gap between the inner wall of the fixing hole 4 and the functional component 2 is greater than 2 mm, making it difficult for the electric screwdriver sleeve to interfere with the functional component 2, further reducing the risk of interference between the electric screwdriver sleeve and the functional component 2.

[0042] In one embodiment, see Figure 1 and Figure 2 The functional component 2 includes a first functional part 21 and a second functional part 22. The other side of the base plate 12 is provided with a first avoidance structure 3 and a second avoidance structure 3. The fixing hole 4 includes a first fixing hole 41 located on the first avoidance structure 3, and a second fixing hole 42 located on the second avoidance structure 3. There is a first gap between the inner wall of the first fixing hole 41 and the first functional part 21, and there is a second gap between the inner wall of the second fixing hole 42 and the second functional part 22. The gap includes a first gap and a second gap.

[0043] The first functional component 21 and the second functional component 22 may be arranged at intervals along the extending direction of the other side.

[0044] The distance between the first functional component 21 and the inner wall of the first fixing hole 41 is greater than or equal to 4.5 mm, and the distance between the second functional component 22 and the inner wall of the first fixing hole 41 is greater than or equal to 3.5 mm.

[0045] Among them, the distance between the inner wall of the first fixing hole 41 facing the side panel 11 and the side panel 11 can be 8 mm, and the vertical distance between the inner wall of the first fixing hole 41 away from the side panel 11 and the surface of the first functional part 21 away from the side panel 11 can be 25.5 mm.

[0046] It can be understood that there may be a gap between the first functional part 21 and the second functional part 22 along the extension direction of the other side, and the gap exposes the fixing hole 4 below. Since the fixing hole 4 is located in the gap between the first functional part 21 and the second functional part 22, it will not interfere with the first functional part 21 and the second functional part 22.

[0047] In one embodiment, see Figure 1 、 Figure 2 、 Figure 4 The ratio of the distance between the first fixing hole 41 and the second fixing hole 42 in the extending direction of the other side of the bottom plate 12 to the length of the other side of the bottom plate 12 is in the range of 0.4 to 0.6.

[0048] The ratio may be any one of 0.4, 0.45, 0.5, 0.55, and 0.6.

[0049] The distance between the first fixing hole 41 and the second fixing hole 42 in the extension direction of the other side of the bottom plate 12 may be in the range of 180±5 mm, and the length of the other side of the bottom plate 12 may be in the range of 347±10 mm.

[0050] Among them, the distance between the first fixing hole 41 and the second fixing hole 42 in the extension direction of the other side of the base plate 12 can be any one of 175 mm, 180 mm, and 185 mm, and the length range of the other side of the base plate 12 can be any one of 337 mm, 347 mm, and 357 mm.

[0051] It can be understood that when the ratio range is 0.4 to 0.6, the assembly stability of the bracket 1 can be met; when the ratio range is less than 0.4 or greater than 0.6, the bracket 1 will vibrate after being installed in the battery pack 10, resulting in uneven force on the fixing hole 4, and the local stress is greater than the yield strength of the material of the bracket 1, which can easily cause deformation of the bracket 1 and affect the service life of the bracket 1 and the battery pack 10.

[0052] In this embodiment, by making the ratio of the distance between the first fixing hole 41 and the second fixing hole 42 in the extension direction of the other side of the base plate 12 to the length of the other side of the base plate 12 range from 0.4 to 0.6, the assembly stability of the bracket 1 is improved, the deformation of the bracket 1 is avoided, and the service life of the bracket 1 is extended.

[0053] In one embodiment, a notch 9 is provided on a side of the first functional component 21 away from the side plate 11 , and an orthographic projection of the notch 9 on the bottom plate 12 exposes a corresponding first fixing hole 41 .

[0054] The length of the notch 9 along the extension direction of the other side of the bottom plate 12 ranges from 40 mm to 50 mm.

[0055] The length of the notch 9 can be any one of 40 mm, 43 mm, 46 mm, and 50 mm.

[0056] The width of the notch 9 in the direction from one side of the bottom plate 12 toward the other side of the bottom plate 12 ranges from 31 mm to 41 mm.

[0057] The width of the notch 9 can be any one of 31 mm, 33 mm, 35 mm, 38 mm, and 41 mm.

[0058] It can be understood that the formation of the notch 9 allows the first functional part 21 and the first fixing hole 41 to avoid each other. The size of the notch 9 needs to satisfy the minimum gap between the inner wall of the first fixing hole 41 and the first functional part 21 to be greater than 2 mm. If the size of the notch 9 is too large, the overall structural strength of the bracket 1 will be weak and easy to deform. If the size of the notch 9 is too small, the first functional part 21 will easily interfere with the installation of the bracket 1.

[0059] It can be understood that the first functional part 21 can be a first mounting bracket for mounting a fuse, and the first mounting bracket is formed with a notch 9 in a direction perpendicular to the base plate 12 for exposing the first fixing hole 41 to avoid the first mounting bracket from blocking or interfering with the first fixing hole 41.

[0060] In this example, see Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 By providing a notch 9 on the first functional component 21 , the notch 9 is utilized to further reduce the interference of the first functional component 21 when the bracket 1 is installed.

[0061] In one embodiment, the ratio of the dimension of the avoidance structure 3 in the extension direction of the other side of the bottom plate 12 to the dimension of the avoidance structure 3 in the direction from one side of the bottom plate 12 to the other side of the bottom plate 12 is greater than 2.

[0062] The avoidance structure 3 is a protrusion, and the length and width of the protrusion may be 40 mm×15 mm respectively.

[0063] It is understandable that by ensuring that the ratio of the length to the width of the protrusion is greater than 2, it is possible to avoid the protrusion or the bracket 1 from generating excessive local stress, which would cause the protrusion or the bracket 1 to deform.

[0064] In one embodiment, the side panels 11 , the bottom panel 12 and the avoidance structure 3 are integrally formed.

[0065] Among them, see Figure 3 and Figure 4 , Figure 3 This is a diagram of the process state before bending. At this time, the side plate 11, bottom plate 12, first plate 13, second plate 14 and extension portion 15 of the bracket 1 are all located in the same plane. Figure 4 To obtain the bracket 1 after performing two bending operations, the bracket 1 can be formed through one punching and two bending operations.

[0066] In this embodiment, the integrally formed bracket 1 is prepared through punching and bending processes, and the preparation process is simple and the dimensional accuracy is high.

[0067] In one embodiment, the thickness of the bracket 1 may be 1.5 mm, and the material of the bracket 1 may be a carbon steel plate to meet the strength requirements while reducing the weight of the bracket 1.

[0068] In one embodiment, the first functional component 21 is a first mounting bracket for mounting a fuse, and the second functional component 22 is a second mounting bracket for mounting a fire protection device.

[0069] The first functional component 21 is fixedly provided with a fuse on a side away from the side plate 11 , and the second functional component 22 is fixedly provided with a fire-fighting device on a side away from the side plate 11 .

[0070] The first mounting bracket and the second mounting bracket do not interfere with the electric screwdriver used during assembly, and the electric screwdriver is used to fix the first bolt in the fixing hole 4.

[0071] It can be understood that the bracket 1 does not include fuses and fire-fighting devices, and is only used to install fuses and fire-fighting devices. When the bracket 1 is assembled with the battery pack 10, only the functional component 2 is provided on the bracket 1. The functional component 2 may include a first mounting bracket and a second mounting bracket. Therefore, during the assembly process of the bracket 1, it is only necessary to consider whether the first mounting bracket and the second mounting bracket will interfere with the electric batch.

[0072] It should be noted that after the bracket 1 and the cold liquid plate 7 of the battery pack 10 are assembled, the fuse and the fire-fighting device are fixed on the first mounting bracket and the second mounting bracket respectively. At this time, the fuse or the fire-fighting device may block the fixing hole 4 in the direction from one side of the base plate 12 to the other side of the base plate 12, but the fuse or the fire-fighting device is assembled after the bracket 1 and the cold liquid plate 7 are assembled. Therefore, the fuse or the fire-fighting device will not interfere with the electric screw.

[0073] In one embodiment, see Figure 1 and Figure 4 The bracket 1 also includes a first plate 13 and a second plate 14 adjacent to the bottom plate 12 and located on two opposite sides of the side plate 11. The first plate 13 and the second plate 14 are symmetrically arranged, wherein the side plate 11, the first plate 13, the second plate 14 and the bottom plate 12 are integrally formed.

[0074] It can be understood that the first plate 13 and the second plate 14 are respectively formed on two opposite sides adjacent to the side plate 11 and the bottom plate 12, and all parts of the bracket 1 are integrally formed, and the first plate 13 and the second plate 14 are used to enhance the structural strength of the bracket 1.

[0075] In this embodiment, the bracket 1 further includes a first plate 13 and a second plate 14 , thereby enhancing the structural strength of the bracket 1 itself and preventing the bracket 1 from being easily deformed.

[0076] In one embodiment, see Figure 1 and Figure 4 The bracket 1 also includes an extension portion 15, which is located on opposite sides of the side plate 11 with the bottom plate 12. The extension direction of the extension portion 15 is opposite to the extension direction of the avoidance structure 3. At least one connecting hole 53 is provided on the extension portion 15, and the connecting hole 53 is provided through the extension portion 15, and the opening direction of the connecting hole 53 is the same as the opening direction of the fixing hole 4.

[0077] The extension portion 15 and the side panel 11 are integrally formed.

[0078] The extension portion 15 and the avoidance structure 3 can be formed by two bending processes respectively.

[0079] The diameter of the connecting hole 53 may be the same as the diameters of the first fixing hole 41 and the second fixing hole 42 , thereby making it easier to process the connecting hole 53 , the first fixing hole 41 and the second fixing hole 42 .

[0080] It can be understood that the extension portion 15 is obtained by the second bending at the top of the bracket 1, and the connection hole 53 on the extension portion 15 is used to fix the battery module in the battery pack 10 to ensure assembly stability.

[0081] In one embodiment, the bracket 1 is fixed to the battery pack 10 by passing a first bolt through the fixing hole 4 and riveting.

[0082] The cold liquid plate 7 of the battery pack 10 is provided with a first screw hole aligned with the fixing hole 4 , and a first bolt passes through the fixing hole 4 and the first screw hole to achieve connection between the bracket 1 and the cold liquid plate 7 .

[0083] In one embodiment, the distance between the first bolt and the edge of the bracket 1 is greater than 0, so that the flange surface of the first bolt is completely in contact with the surface of the bracket 1 to meet the installation strength and reliability.

[0084] In one embodiment, see Figure 1 and Figure 3 A plurality of second screw holes are provided on the functional component 2, and a plurality of third screw holes 52 are provided on the side panel 11. The second screw holes and the third screw holes 52 are arranged opposite to each other. The functional component 2 and the side panel 11 of the bracket 1 are assembled with the second bolts passing through the second screw holes and the third screw holes 52 to realize the assembly of the functional component 2 and the bracket 1, thereby fixing the functional component 2 on the side panel 11.

[0085] The second screw hole and the third screw hole 52 have the same hole diameter.

[0086] Second, see Figure 5 An embodiment of the present invention provides a battery pack 10, comprising a bracket 1 as described in any of the above embodiments.

[0087] The battery pack 10 further includes a box 6 and a cooling plate 7 .

[0088] Among them, the bracket 1 includes a side panel 11 and a bottom panel 12, the side panel 11 is used to install the functional component 2, one side of the bottom panel 12 is connected to the side panel 11, and the other side of the bottom panel 12 is provided with an avoidance structure 3 and at least one fixing hole 4. The fixing hole 4 is staggered with the functional component 2 to avoid the functional component 2.

[0089] In the embodiment, the bracket 1 is provided with the avoiding structure 3, the fixing hole 4 is arranged on the avoiding structure 3, the fixing hole 4 is dislocated with the functional assembly 2, when the bracket 1 and the cold liquid plate 7 are assembled by using the electric wrench, the electric wrench is not easy to interfere with the functional assembly 2.

[0090] The battery pack 10 further comprises a plurality of battery cells 8 electrically connected to each other.

[0091] The above detailed the embodiments of the present application, the principle and implementation of the present application are described in this paper by applying specific examples, the above embodiment is only used to help understand the method and core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, the specific implementation and application range will be changed, and the above description should not be understood as the limitation of the present application.

Claims

1. A bracket, characterized in that: include: A side panel and a bottom panel, wherein the side panel is used to install functional components, and one side edge of the bottom panel is connected to the side panel; Wherein, the other side of the bottom plate is provided with an avoidance structure and is provided with at least one fixing hole, and the fixing hole and the functional component are staggered to avoid the functional component.

2. The bracket according to claim 1, wherein: The avoidance structure is a protrusion.

3. The bracket according to claim 1 or 2, characterized in that: The avoidance structure and the functional component are located on the same side of the side plate, and a gap exists between the inner wall of the fixing hole and the functional component in a direction from the one side of the bottom plate to the other side of the bottom plate.

4. The bracket according to claim 3, characterized in that The range of the gap is greater than 2 mm.

5. The bracket according to claim 1 or 2, characterized in that: The functional component includes a first functional part and a second functional part, the other side of the base plate is provided with a first avoidance structure and a second avoidance structure, the fixing hole includes a first fixing hole located on the first avoidance structure, and a second fixing hole located on the second avoidance structure, a first gap is provided between the inner wall of the first fixing hole and the first functional part, and a second gap is provided between the inner wall of the second fixing hole and the second functional part, and the gap includes the first gap and the second gap.

6. The bracket according to claim 5, characterized in that The ratio of the distance between the first fixing hole and the second fixing hole in the extending direction of the other side of the bottom plate to the length of the other side of the bottom plate is in a range of 0.4 to 0.

6.

7. The bracket according to claim 5, characterized in that A notch is provided on a side of the first functional component away from the side plate, and an orthographic projection of the notch on the bottom plate exposes the corresponding first fixing hole.

8. The bracket according to claim 1 or 2, characterized in that: A ratio of a dimension of the avoidance structure in an extending direction of the other side of the bottom plate to a dimension of the avoidance structure in a direction from the one side of the bottom plate toward the other side of the bottom plate is greater than 2.

9. The bracket according to claim 1 or 2, characterized in that: The side panels, the bottom panel and the avoidance structure are integrally formed.

10. A battery pack, characterized in that: Comprising the bracket according to any one of claims 1 to 9.

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