Support and battery pack

Abstract

The utility model provides a support and battery pack wherein the support comprises a base part, the base part is provided with at least one mounting hole and at least one communication port, each mounting hole is suitable for mounting a corresponding battery cell, each communication port penetrates through the inner side wall of the corresponding mounting hole, the base part is also provided with at least one glue injection hole, and the at least one glue injection hole is communicated with the at least one glue injection hole. And each glue injection hole is communicated with the corresponding mounting hole through the corresponding communication port. According to the bracket provided by the utility model, on one hand, the operation of positioning and aligning the bracket in the mounting process of the battery cell in related technologies can be avoided, so that the complexity of manual operation in the mounting process of the battery cell is reduced, and on the other hand, the glue material is injected into the gap between the battery cell and the mounting hole through the glue injection hole; the connection stability between the battery cell and the mounting hole can be effectively enhanced, and the influence of external impact force and vibration on the connection stability between the bracket and the battery cell is effectively reduced, so that the risk that the battery cell shifts or the connection between the battery cell and other components is loosened is reduced.

Description

Technical Field

[0001] This utility model relates to the field of batteries, specifically to a bracket and a battery pack. Background Technology

[0002] In related technologies, the installation steps of the battery cell assembly are usually as follows: first, fix one end of the battery cell assembly to a bracket, and then fix the other end of the battery cell assembly to another bracket. Although this installation method is relatively simple, in practical applications, this structural design often has the following defects: (1) the bracket has insufficient ability to fix the battery cell in the environment of vibration or impact, which makes the battery cell easy to shift in this environment, which may lead to poor contact between the battery cell assembly and other components; (2) the installation steps include fixing the two brackets to the two ends of the battery cell assembly in sequence, and each bracket needs to be positioned, adjusted and fixed separately, which makes the installation process more complicated and the installation efficiency of the battery cell assembly is low. Utility Model Content

[0003] The present invention provides a bracket and a battery pack to solve the problems of unstable battery cell fixing by the bracket and low efficiency of installing battery cells on the bracket in related technologies.

[0004] In a first aspect, an embodiment of the present invention provides a bracket for mounting at least one battery cell, comprising: a base having at least one mounting hole and at least one connecting port, each mounting hole being adapted to mount a corresponding battery cell, and each connecting port penetrating the inner sidewall of the corresponding mounting hole; wherein the base also has at least one injection hole, each injection hole being connected to the corresponding mounting hole through the corresponding connecting port.

[0005] In one embodiment, the base is provided with a plurality of mounting holes, which are arranged along a first direction; each connecting port penetrates the inner sidewall of two adjacent mounting holes in the first direction; wherein each injection hole is connected to two adjacent mounting holes in the first direction through a corresponding connecting port.

[0006] In one embodiment, the base is provided with a plurality of mounting holes, which are arranged along a second direction; wherein each injection hole is connected to two adjacent mounting holes in the second direction through corresponding two connecting ports.

[0007] In one embodiment, the two connecting ports include a first connecting port and a second connecting port, the second connecting port being located on the side of the first connecting port away from the injection hole; wherein, the dimension of the second connecting port in the circumferential direction of the corresponding mounting hole is smaller than the dimension of the first connecting port in the circumferential direction of the corresponding mounting hole.

[0008] In one embodiment, r-0.2mm≤d≤r+0.2mm; where d is the dimension of the second communication port in the second direction, and r is the radius of the mounting hole.

[0009] In one embodiment, the base is provided with a plurality of mounting holes, which are arranged along a first direction and a second direction; wherein the wall thickness between two adjacent mounting holes is 2 mm to 2.5 mm.

[0010] In one embodiment, the base is provided with a plurality of mounting holes, which are arranged along a first direction and a second direction; wherein, the base is also provided with a plurality of weight-reducing holes, each weight-reducing hole being located between a plurality of adjacent mounting holes along the first direction and the second direction.

[0011] In one embodiment, the wall thickness between each weight-reducing hole and the corresponding plurality of mounting holes is equal.

[0012] In one embodiment, the diameter of the injection hole is 8 mm to 10 mm.

[0013] Secondly, embodiments of the present invention provide a battery pack, the battery including at least one cell and a support as described in the first aspect.

[0014] This invention provides a bracket and a battery pack. The bracket includes a base with at least one mounting hole and at least one connecting port. Each mounting hole is suitable for mounting a corresponding battery cell, and each connecting port penetrates the inner wall of the corresponding mounting hole. The base also has at least one injection hole, which connects to the corresponding mounting hole through the corresponding connecting port. The bracket provided by this invention avoids the need for positioning and alignment of the bracket during battery cell installation, as required by related technologies, thus reducing the complexity of manual operation during battery cell installation. Furthermore, injecting adhesive material into the gap between the battery cell and the mounting hole through the injection hole effectively enhances the connection stability between the battery cell and the mounting hole, effectively reducing the impact of external impact and vibration on the connection stability between the bracket and the battery cell, thereby reducing the risk of battery cell displacement or loosening of connections with other components. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the bracket provided in an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the bracket and battery cell provided in an embodiment of the present invention;

[0018] Figure 3 yes Figure 1Top view of the middle support;

[0019] Figure 4 yes Figure 3 A sectional view;

[0020] Figure 5 yes Figure 1 Side view of the central support;

[0021] Explanation of reference numerals in the attached figures:

[0022] 100, bracket; 110, base; 120, mounting hole; 130, connecting port; 131, first connecting port; 132, second connecting port; 140, glue injection hole; 150, weight reduction hole; 160, fixing part; 200, battery cell. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0024] To address the problems of unstable cell mounting and low efficiency in related technologies, this utility model provides a bracket 100, please refer to... Figure 1 , Figure 2 , Figure 1 This is a structural schematic diagram of the bracket 100 provided in this embodiment of the utility model. Figure 2 This is a schematic diagram of the structure of the bracket 100 and the battery cell 200 provided in this embodiment of the utility model. The bracket 100 includes a base 110, the base 110 is provided with at least one mounting hole 120, at least one connecting port 130 and at least one injection hole 140. Each mounting hole 120 is used to mount the corresponding battery cell 200, and each connecting port 130 penetrates the inner sidewall of the corresponding mounting hole 120. Each injection hole 140 is connected to the corresponding mounting hole 120 through the corresponding connecting port 130.

[0025] Specifically, the steps for fixing the battery cell 200 with the bracket 100 provided in this embodiment include:

[0026] (1) Install each battery cell 200 into the corresponding mounting hole 120, and ensure that the battery cell 200 is aligned;

[0027] (2) After all the cells 200 are installed into the mounting holes 120 of the bracket 100, adjust the position of the bracket 100 so that the side of the bracket 100 with the glue injection hole 140 faces upward to facilitate the injection of glue.

[0028] (3) Apply glue to the glue injection hole 140 on the bracket 100 by means of a glue injection device or by manual injection. During the injection process, the glue will flow along the direction and fill the gap between the battery cell 200 and the mounting hole 120 under the influence of inertia and gravity. The glue will gradually cover the inner wall of the battery cell 200 and the mounting hole 120 and begin to bond the two. Through its curing effect, the glue will bond between the inner wall of the battery cell 200 and the mounting hole 120, and finally form a strong adhesive structure.

[0029] Compared to the fixing method in related technologies where the two ends of the battery cell 200 are sequentially installed onto two brackets 100, this embodiment provides a bracket 100 with multiple mounting holes 120 provided at its base 110. The installation of the battery cell 200 only requires installing the entire battery cell 200 into the corresponding mounting holes 120, without requiring additional positioning and adjustment of the bracket 100. This structural design avoids the positioning and alignment operations of the bracket 100 during the installation of the battery cell 200 in related technologies, thereby reducing the difficulty of manual operation during battery cell installation. The simplified installation process reduces human error and potential damage risks, thus improving overall production efficiency.

[0030] Furthermore, the battery cell 200 is bonded to the mounting hole 120 using an adhesive material, which effectively enhances the connection stability between the battery cell 200 and the mounting hole 120. The application of the adhesive material also fills any tiny gaps that may exist between the battery cell 200 and the mounting hole 120 during flow, further improving the fixation effect of the battery cell 200. Compared to related technologies that use two supports 100 to fix the two ends of the battery cell 200 respectively, this structural design has a larger relative area between the inner wall of the mounting hole 120 and the side of the battery cell 200, allowing the battery cell 200 to adhere tightly to the mounting hole 120 using the adhesive material, thus ensuring the stability of the battery cell 200 within the mounting hole 120. This structural design effectively reduces the impact of external shocks and vibrations, thereby reducing the risk of displacement of the battery cell 200 or loosening of connections with other components.

[0031] In some embodiments, please refer to Figure 1 , Figure 2The base 110 is provided with a plurality of mounting holes 120 arranged along a first direction. Each connecting port 130 penetrates the inner sidewall of two adjacent mounting holes 120 in the first direction, so that each injection hole 140 communicates with two adjacent mounting holes 120 in the first direction through the corresponding connecting port 130. (See the first direction for reference.) Figure 1 and Figure 2 The X direction in the equation.

[0032] To ensure sufficient adhesive material is injected into each mounting hole 120, a dedicated injection hole 140 is typically designed for each mounting hole 120. While this method ensures effective adhesive injection in each mounting hole 120, when the bracket 100 has a large number of mounting holes 120, the number of injection holes 140 also increases accordingly. This may lead to an increase in pores in the bracket 100 structure, thereby weakening the overall strength of the bracket 100 and ultimately affecting its stability and durability. Furthermore, setting multiple injection holes 140 may increase production costs and the complexity of the adhesive injection process.

[0033] To address the aforementioned issues, in this embodiment, the connecting port 130 is designed to penetrate the inner wall between two adjacent mounting holes 120, allowing one injection hole 140 to simultaneously inject adhesive material into two adjacent mounting holes 120 through the flow channel. This "one-hole reuse" structural design not only reduces the number of injection holes 140, preventing a decrease in the structural strength of the bracket 100 due to an excessive number of injection holes 140, but also simplifies the manufacturing process and injection operation of the bracket 100.

[0034] In some embodiments, please refer to Figure 1 , Figure 2 The base 110 is provided with a plurality of mounting holes 120 arranged along the second direction. Each injection hole 140 is connected to two adjacent mounting holes 120 in the second direction through two corresponding connecting ports 130. (See the second direction for reference.) Figure 1 and Figure 2 in the Y direction.

[0035] In this embodiment, each injection hole 140 is connected to two adjacent mounting holes 120 in the second direction via two corresponding connecting ports 130, allowing adhesive material to flow through the injection hole 140 and fill the two adjacent mounting holes 120 in the second direction. In conventional designs, a separate injection hole 140 is usually required for each mounting hole 120. While this ensures that each mounting hole 120 receives sufficient adhesive material, it also increases the complexity of the overall structure of the support 100 and may negatively impact the strength and stability of the support 100. In this embodiment, each injection hole 140 is connected to two adjacent mounting holes 120 via two connecting ports 130. This effectively reduces the number of injection holes 140 in the support structure while still allowing liquid injection into multiple mounting holes 120, thus avoiding the problem of reduced overall strength of the base 110 due to an excessive number of injection holes 140.

[0036] In some embodiments, please refer to Figure 2 Each injection hole 140 is connected to two adjacent mounting holes 120 in the second direction through two corresponding connecting ports 130. The two connecting ports 130 include a first connecting port 131 and a second connecting port 132. The second connecting port 132 is located on the side of the first connecting port 131 away from the injection hole 140, and the size of the second connecting port 132 in the circumferential direction of the corresponding mounting hole 120 is smaller than the size of the first connecting port 131 in the circumferential direction of the corresponding mounting hole 120.

[0037] Specifically, each connecting opening 130 penetrates the inner wall of the corresponding mounting hole 120, which means that the size of the connecting opening 130 directly affects the structural strength of the inner wall of the mounting hole 120. To ensure that the setting of the second connecting opening 132 does not excessively weaken the strength of the inner wall of the mounting hole 120 during the design and manufacturing process, in this embodiment, the size of the second connecting opening 132 in the circumferential direction of the corresponding mounting hole 120 is set to be smaller than the circumferential size of the first connecting opening 131, so as to ensure that the inner wall of the mounting hole 120 can maintain sufficient structural strength and reduce the risk of structural breakage or deformation of the bracket 100.

[0038] In some embodiments, please refer to Figure 1 , Figure 3 and Figure 4 , Figure 3 yes Figure 1 Top view of the middle support. Figure 4 yes Figure 3 In the cross-sectional view, the dimension d of the second connecting port 132 in the second direction satisfies the following condition with the radius r of the mounting hole 120: r-0.2mm≤d≤r+0.2mm.

[0039] Specifically, experimental verification shows that when the dimension d of the second connecting port 132 in the second direction is greater than r + 0.2 mm, the inner wall of the second connecting port 132 may have insufficient structural strength due to the excessively large d. In this case, the load-bearing capacity and stability of the base 110 will be affected, especially when subjected to external pressure or load. The inner wall of the corresponding mounting hole 120 may be at risk of cracking or deformation, thereby reducing the service life and reliability of the bracket 100. In addition, when the dimension d of the second connecting port 132 in the second direction is less than r - 0.2 mm, the flow efficiency of the adhesive material may be low, thereby affecting the efficiency of the adhesive material in bonding the battery cell 200 to the inner wall of the mounting hole 120.

[0040] Therefore, in this embodiment, the dimension d of the second connecting port 132 in the second direction is set between r-0.2mm and r+0.2mm, which can effectively ensure the structural strength of the inner sidewall of the support 100, and at the same time ensure high liquid injection efficiency.

[0041] In some embodiments, please refer to Figure 5 , Figure 5 yes Figure 1 In the side view of the bracket, the base 110 is provided with a plurality of mounting holes 120, and the plurality of mounting holes 120 are evenly spaced along the first direction and the second direction. Specifically, the wall thickness L1 of the wall between two adjacent mounting holes 120 is 2mm to 2.5mm.

[0042] Specifically, experimental verification shows that to ensure the structural strength of the base 110, the wall thickness between adjacent mounting holes 120 must be no less than 2mm. When the wall thickness between adjacent mounting holes 120 is less than 2mm, the structural strength of the base 110 may be insufficient. Especially when the bracket 100 is subjected to external pressure or vibration, the walls of the mounting holes 120 are prone to cracking or deformation, thus affecting the load-bearing capacity and service life of the bracket 100. Therefore, a minimum wall thickness of 2mm effectively ensures the stability and compressive strength of the base 110 of the bracket 100, preventing cell 200 failure or damage due to structural instability of the base 110. Furthermore, to avoid excessive weight of the base 110 leading to an overly heavy overall weight of the bracket 100, the wall thickness between adjacent mounting holes 120 must be no greater than 2.5mm. Excessive wall thickness between adjacent mounting holes 120 not only increases material usage and production costs but may also make the overall weight of the bracket 100 heavier, thus affecting its ease of operation.

[0043] When the wall thickness between adjacent mounting holes 120 is between 2mm and 2.5mm, the base 110 has good structural strength under normal working conditions, and this wall thickness range can effectively avoid the inconvenience caused by the overall excessive weight of the bracket 100 due to excessive wall thickness.

[0044] In some embodiments, the base 110 is provided with a plurality of mounting holes 120, and the plurality of mounting holes 120 are arranged along a first direction and a second direction. In addition, the base 110 is also provided with a plurality of weight-reducing holes 150, each weight-reducing hole 150 being located between a plurality of adjacent mounting holes 120 along the first direction and the second direction.

[0045] The weight-reducing hole 150 provided in the base 110 in this embodiment has the following significant advantages:

[0046] (1) Reducing the weight of the base 110: The design of the weight reduction hole 150 effectively reduces the weight of the base 110. By adding the weight reduction hole 150 between the mounting holes 120, not only can unnecessary material usage be reduced, but the overall weight can also be reduced without affecting the load-bearing capacity of the base 110, thereby reducing the production and transportation costs of the bracket 100.

[0047] (2) Enhancing the structural strength of the base 110: The setting of the weight-reducing hole 150 can effectively control the wall thickness of the inner wall of the base 110. Specifically, by designing the size and position of the weight-reducing hole 150, the wall thickness between the inner wall of the weight-reducing hole 150 and the inner wall of the adjacent mounting hole 120 can be controlled to be approximately equal to the wall thickness between the two adjacent mounting holes 120. This ensures that the wall thickness of each part of the base 110 is consistent, avoiding the uneven strength caused by excessively thin or thick local wall thickness of the base 110, thereby ensuring the consistency of the wall thickness. This allows the base 110 to effectively distribute external loads, reduce stress concentration, and enhance the overall stability and load-bearing capacity of the base 110.

[0048] In some embodiments, the diameter of the injection hole 140 is 8mm to 10mm. The diameter of the injection hole 140 has a significant impact on the injection efficiency. Experiments have shown that when the diameter of the injection hole 140 is less than 8mm, the flow of adhesive material is restricted during the injection process, resulting in a smaller amount of adhesive material injected per unit time, leading to lower injection efficiency and ultimately affecting the installation efficiency of the battery cell 200. When the diameter of the injection hole 140 is greater than 10mm, excessive injection of adhesive may result in redundant adhesive material during the injection process.

[0049] Therefore, in this embodiment, the diameter of the injection hole 140 is designed to be within the range of 8mm to 10mm, which can effectively balance the injection efficiency and the amount of redundant adhesive material. Within this range, on the one hand, excessive redundant adhesive material can be avoided during the injection process, and on the other hand, the injection efficiency can be guaranteed.

[0050] In some embodiments, please refer to Figure 1 , Figure 2The bracket 100 also includes multiple fixing parts 160, each of which is connected to the base 110. The fixing parts 160 are configured to fix the base 110 to other components. Specifically, each fixing part 160 has a screw hole, which is configured to allow bolts or other fasteners to pass through and engage with the screw holes in the housing, thereby securing the base 110. The spacing between adjacent fixing parts 160 is equal. This design effectively and evenly distributes the stress borne by the base 110 during fixation, preventing stress concentration at any one location and reducing the risk of damage to the bracket 100. Specifically, the uniform spacing design ensures the stability of the bracket 100 under different load conditions, preventing base structure cracking due to excessive local stress, thereby improving the overall durability and service life of the bracket 100.

[0051] Furthermore, a gap is provided between part of the fixing portion 160 and the base 110. This gap is designed to allow the separator assembly (not shown in the figure) to snap between the fixing portion 160 and the base 110. This allows the separator assembly to fix and protect the battery cell 200. By snapping between the fixing portion 160 and the base 110, the separator assembly can prevent the battery cell 200 from shifting in the third direction, thereby ensuring the safety of the battery cell 200.

[0052] This utility model provides a bracket 100, which includes a base 110. The base 110 is provided with at least one mounting hole 120 and at least one connecting port 130. Each mounting hole 120 is suitable for mounting a corresponding battery cell 200, and each connecting port 130 penetrates the inner sidewall of the corresponding mounting hole 120. The base 110 is also provided with at least one glue injection hole 140, and each glue injection hole 140 is connected to the corresponding mounting hole 120 through the corresponding connecting port 130. The bracket 100 provided by this utility model can, on the one hand, avoid the positioning and alignment operation of the bracket 100 during the installation of the battery cell 200 in related technologies, thereby reducing the complexity of manual operation during the installation of the battery cell 200. On the other hand, by injecting adhesive material into the gap between the battery cell 200 and the mounting hole 120 through the injection hole 140, the connection stability between the battery cell 200 and the mounting hole 120 can be effectively enhanced, and the impact of external impact and vibration on the connection stability between the bracket 100 and the battery cell 200 can be effectively reduced, thereby reducing the risk of the battery cell 200 shifting or loosening its connection with other components.

[0053] This utility model also provides a battery pack, which includes the aforementioned bracket 100 and has all the advantages of the aforementioned bracket 100, which will not be repeated here.

[0054] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A bracket for mounting at least one battery cell, characterized by, The application relates to a bracket for a battery cell, comprising: a base provided with at least one mounting hole and at least one communication port, each of the mounting holes being adapted to mount a corresponding battery cell, and each of the communication ports penetrating the inner side wall of the corresponding mounting hole; wherein the base is further provided with at least one glue injection hole, and each of the glue injection holes is communicated with the corresponding mounting hole through the corresponding communication port.

2. The stent of claim 1, wherein The base is provided with a plurality of mounting holes arranged along a first direction; each of the communication ports penetrates the inner side wall of two adjacent mounting holes in the first direction; and each of the glue injection holes is communicated with two adjacent mounting holes in the first direction through the corresponding communication port.

3. The stent of claim 1, wherein The base is provided with a plurality of mounting holes arranged along a second direction; and each of the glue injection holes is communicated with two adjacent mounting holes in the second direction through the corresponding two communication ports.

4. The stent of claim 3, wherein, The two communication ports comprise a first communication port and a second communication port, and the second communication port is located on the side of the first communication port away from the glue injection hole; wherein the size of the second communication port in the second direction is smaller than the size of the first communication port in the circumferential direction of the corresponding mounting hole.

5. The stent of claim 4, wherein, r-0.2mm<=d<=r+0.2mm; wherein d is the size of the second communication port in the second direction, and r is the radius of the mounting hole.

6. The stent defined in Claim 1, wherein, The base is provided with a plurality of mounting holes arranged along a first direction and a second direction; and the wall thickness of the wall between two adjacent mounting holes is 2mm to 2.5mm.

7. The stent defined in Claim 1, wherein, The base is provided with a plurality of mounting holes arranged along a first direction and a second direction; and the base is further provided with a plurality of weight-reducing holes, each of which is located between a plurality of adjacent mounting holes along the first direction and the second direction.

8. The stent defined in Claim 7, wherein, The wall thickness of the wall between each of the weight-reducing holes and the corresponding plurality of mounting holes is equal.

9. The stent defined in any one of claims 1-8, wherein, The diameter of the glue injection hole is 8mm to 10mm.

10. A battery pack, characterized by, The application further relates to a battery comprising a box body, at least one battery cell and the bracket of any one of claims 1-9, wherein the bracket further comprises at least one fixing part, and each of the fixing parts is fixed to the box body.

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