Damping assembly and nickel-hydrogen battery

Abstract

The present disclosure provides a damping assembly and a nickel-hydrogen battery. The damping assembly comprises a damping body, the damping body is provided with a first interface serration part and a second interface serration part in a relative manner, and the damping body is used for surrounding the outer surface of the battery monomer, so that the first interface serration part and the second interface serration part are correspondingly arranged on the outer surface of the battery monomer. The attachment effect between the damping assembly and the outer surface of the battery monomer is good.

Description

Technical Field

[0001] This disclosure relates to the technical field of nickel-metal hydride batteries, and in particular to a shock-absorbing component and a nickel-metal hydride battery. Background Technology

[0002] Nickel-metal hydride (NiMH) batteries are rechargeable batteries that store electrical charge using metal hydrides. They are widely used in consumer electronics, power tools, new energy vehicles, medical equipment, communication equipment, and aerospace. A NiMH battery consists of individual battery cells and shock-absorbing components. The shock-absorbing components are connected to the battery cells, specifically attached around the outer surface of the battery cells to reduce vibration.

[0003] The battery cell is cylindrical in shape with rounded corners. The shock-absorbing component is an elastic structure, such as a sponge component. When the shock-absorbing component is attached to the outer surface of the battery cell, a force analysis shows that there is an adhesive force between the shock-absorbing component and the battery cell, and the shock-absorbing component has a rebound force under the action of the rounded corners. When the adhesive force is greater than the rebound force, the interface of the shock-absorbing component will not lift up; when the adhesive force is less than the rebound force, the interface of the shock-absorbing component will lift up.

[0004] However, after the shock-absorbing components are attached to the outer surface of the battery cell for a period of time, the rebound force remains unchanged, and the rebound force continues to act on the interface of the shock-absorbing components. This makes it easier to achieve a situation where the adhesion force is less than the rebound force, making it easier for the interface of the shock-absorbing components to experience poor lifting, as shown in the attached diagram of the instruction manual. Figure 1 As shown, this results in poor adhesion between the shock-absorbing components and the outer surface of the battery cells. Utility Model Content

[0005] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a shock-absorbing component and a nickel-metal hydride battery that achieves better adhesion between the shock-absorbing component and the outer surface of the battery cell.

[0006] The purpose of this disclosure is achieved through the following technical solution:

[0007] A shock-absorbing component is used to surround and attach to the outer surface of a battery cell. The shock-absorbing component includes a shock-absorbing body, and the shock-absorbing body is provided with a first interface serrated portion and a second interface serrated portion opposite to each other. The shock-absorbing body is used to surround and attach to the outer surface of the battery cell, such that the first interface serrated portion and the second interface serrated portion are correspondingly disposed and attached to the outer surface of the battery cell.

[0008] In one embodiment, the shock-absorbing body is a sponge structure, a rubber structure, or a silicone structure.

[0009] In one embodiment, the shock-absorbing body is provided with an adhesive layer at the connection between it and the outer surface of the battery cell.

[0010] In one embodiment, the first interface sawtooth portion is provided with a first sawtooth, and the second interface sawtooth portion is provided with a first sawtooth groove, with the first sawtooth located in the first sawtooth groove; when the shock-absorbing body is used to surround and attach to the outer surface of the battery cell, the first sawtooth is provided in correspondence with the first sawtooth groove.

[0011] In one embodiment, there are two first saw teeth and two first saw tooth grooves, with each first saw tooth located in a corresponding first saw tooth groove; when the shock-absorbing body is used to surround and attach to the outer surface of the battery cell, each first saw tooth is correspondingly arranged with a corresponding first saw tooth groove.

[0012] In one embodiment, there are multiple first saw teeth and multiple first saw tooth grooves, with each first saw tooth located in a corresponding first saw tooth groove; when the shock-absorbing body is used to surround and attach to the outer surface of the battery cell, each first saw tooth is correspondingly arranged with a corresponding first saw tooth groove.

[0013] In one embodiment, the tooth width of the first saw tooth is less than or equal to the vertical height of the first saw tooth.

[0014] In one embodiment, the tooth width of the first saw tooth is less than or equal to the tooth width of the first saw tooth groove.

[0015] In one embodiment, the vertical height of the first saw tooth is less than or equal to the vertical depth of the first saw tooth groove.

[0016] A nickel-metal hydride battery includes a battery cell and a shock-absorbing component as described in any of the above embodiments, the shock-absorbing component being attached to the outer surface of the battery cell.

[0017] Compared with the prior art, this disclosure has at least the following advantages:

[0018] 1. Since the shock absorber body is used to surround and attach to the outer surface of the battery cell, the first interface serrated part and the second interface serrated part are correspondingly set and attached to the outer surface of the battery cell, so that the first interface serrated part and the second interface serrated part are correspondingly set to form the interface of the shock absorber assembly, so that the interface of the shock absorber assembly is serrated. The rebound force acts on the serrated bevel at the interface of the shock absorber assembly. According to the force analysis of the rebound force, the rebound force is decomposed into a first decomposition force and a second decomposition force. The first decomposition force is set parallel to the serrated bevel, and the second decomposition force is set perpendicular to the serrated bevel. Therefore, the second decomposition force is the force that causes the interface of the shock absorber assembly to have poor lifting.

[0019] 2. After the shock-absorbing component is attached to the outer surface of the battery cell for a period of time, the second decomposition force is less than the rebound force, resulting in a smaller rebound force at the interface of the serrated shock-absorbing component. This extends the adhesion time at the interface of the serrated shock-absorbing component, thus effectively prolonging the adhesion time between the shock-absorbing component and the outer surface of the battery cell. Compared with the traditional interface method of shock-absorbing components, the interface method of the serrated shock-absorbing component makes it more difficult to achieve the condition that the adhesion force is less than the rebound force. This solves the problem that the interface of the shock-absorbing component is prone to lifting defects in the prior art, making it less likely for the interface of the serrated shock-absorbing component to lift defects. In other words, the interface of the shock-absorbing component is less likely to lift defects, resulting in a better adhesion effect between the shock-absorbing component and the outer surface of the battery cell. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 The image shows a photograph of a shock-absorbing component in the background art, where the interface is prone to warping.

[0022] Figure 2 This is a partial structural schematic diagram of a nickel-metal hydride battery according to an embodiment;

[0023] Figure 3 for Figure 2 The diagram shows the force analysis of the rebound force on the serrated bevel at the sponge interface.

[0024] Figure 4 for Figure 2 A schematic diagram of the nickel-metal hydride battery from another perspective;

[0025] Figure 5 for Figure 2 The diagram shows the structure of the shock absorption assembly for a nickel-metal hydride battery.

[0026] Reference numerals: 10-Shock-absorbing component; 100-Shock-absorbing body; 110-First interface serrated part; 111-First serration; 120-Second interface serrated part; 121-First serrated groove; 130-Adhesive layer; 20-Battery cell; 30-NiMH battery. Detailed Implementation

[0027] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] This disclosure provides a shock-absorbing component for surrounding the outer surface of a battery cell.

[0031] Furthermore, the shock absorption assembly includes a shock absorption body, which has a first interface serrated portion and a second interface serrated portion disposed opposite to each other. The shock absorption body is used to surround and attach to the outer surface of the battery cell, so that the first interface serrated portion and the second interface serrated portion are correspondingly disposed and attached to the outer surface of the battery cell.

[0032] The aforementioned shock-absorbing component, since the shock-absorbing body is used to surround and attach to the outer surface of the battery cell, the first interface serrated part and the second interface serrated part are correspondingly attached to the outer surface of the battery cell, so that the first interface serrated part and the second interface serrated part are correspondingly set to form the interface of the shock-absorbing component, so that the interface of the shock-absorbing component is serrated. The rebound force acts on the serrated inclined edge of the interface of the shock-absorbing component. According to the force analysis of the rebound force, the rebound force is decomposed into a first decomposition force and a second decomposition force. The first decomposition force is set parallel to the serrated inclined edge, and the second decomposition force is set perpendicular to the serrated inclined edge. Therefore, the second decomposition force is the force that causes the interface of the shock-absorbing component to have poor lifting.

[0033] After the shock-absorbing component is attached to the outer surface of the battery cell for a period of time, the second decomposition force is less than the rebound force, resulting in a smaller rebound force at the interface of the serrated shock-absorbing component. This extends the adhesion time at the interface of the serrated shock-absorbing component, thus effectively prolonging the adhesion time between the shock-absorbing component and the outer surface of the battery cell. Compared with the traditional interface method of shock-absorbing components, the interface method of the serrated shock-absorbing component makes it more difficult to achieve a situation where the adhesion force is less than the rebound force. This solves the problem that the interface of the shock-absorbing component is prone to lifting defects in the prior art, making it less likely for the interface of the serrated shock-absorbing component to lift defects. In other words, the interface of the shock-absorbing component is less likely to lift defects, resulting in a better adhesion effect between the shock-absorbing component and the outer surface of the battery cell.

[0034] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0035] like Figures 2 to 5 As shown, in one embodiment, the shock-absorbing component 10 is used to surround the outer surface of the battery cell 20.

[0036] Furthermore, the shock absorption assembly 10 includes a shock absorption body 100, which has a first interface serrated portion 110 and a second interface serrated portion 120 disposed opposite to each other. The shock absorption body 100 is used to surround and attach to the outer surface of the battery cell 20, so that the first interface serrated portion 110 and the second interface serrated portion 120 are correspondingly disposed and attached to the outer surface of the battery cell 20.

[0037] In this embodiment, the shock-absorbing body 100 is used to surround and attach to the outer surface of the battery cell 20, so that the first interface serrated portion 110 and the second interface serrated portion 120 are correspondingly attached to the outer surface of the battery cell 20, so that the first interface serrated portion 110 and the second interface serrated portion 120 are correspondingly arranged to jointly form the interface of the shock-absorbing component 10, so that the interface of the shock-absorbing component 10 is serrated.

[0038] The aforementioned shock-absorbing component 10, since the shock-absorbing body 100 is used to surround and attach to the outer surface of the battery cell 20, the first interface serrated portion 110 and the second interface serrated portion 120 are correspondingly attached to the outer surface of the battery cell 20, so that the first interface serrated portion 110 and the second interface serrated portion 120 are correspondingly set to jointly form the interface of the shock-absorbing component 10, so that the interface of the shock-absorbing component 10 is serrated. The rebound force F acts on the serrated inclined edge at the interface of the shock-absorbing component 10. According to the force analysis of the rebound force F, the rebound force F is decomposed into a first decomposition force F1 and a second decomposition force F2. The first decomposition force F1 is set parallel to the serrated inclined edge, and the second decomposition force F2 is set perpendicular to the serrated inclined edge. Therefore, the second decomposition force F2 is the force that causes the interface of the shock-absorbing component 10 to have poor lifting.

[0039] After the shock-absorbing component 10 is attached to the outer surface of the battery cell 20 for a period of time, the second decomposition force F2 is less than the rebound force F, resulting in a smaller rebound force at the interface of the serrated shock-absorbing component 10. This extends the adhesion time at the interface of the serrated shock-absorbing component 10, thus effectively prolonging the adhesion time between the shock-absorbing component 10 and the outer surface of the battery cell 20. Compared with the traditional interface method of the shock-absorbing component 10, the interface method of the serrated shock-absorbing component 10 makes it more difficult to achieve an adhesion force less than the rebound force F. This solves the problem that the interface of the shock-absorbing component 10 is prone to lifting defects in the prior art, making it less likely for the interface of the serrated shock-absorbing component 10 to lift defects. In other words, it is less likely for the interface of the shock-absorbing component 10 to lift defects, resulting in a better adhesion effect between the shock-absorbing component 10 and the outer surface of the battery cell 20.

[0040] In one embodiment, the shock-absorbing body 100 is a sponge structure, a rubber structure, or a silicone structure, so that the shock-absorbing body 100 has good elasticity and good shock absorption performance, thereby effectively reducing the vibration of the battery cell 20.

[0041] In one embodiment, the shock absorber body 100 is a one-piece molded structure, which makes the structural strength of the shock absorber body 100 high.

[0042] like Figure 4 As shown, in one embodiment, an adhesive layer 130 is provided at the connection between the shock-absorbing body 100 and the outer surface of the battery cell 20, so that the shock-absorbing body 100 is attached to the outer surface of the battery cell 20 through the adhesive layer 130, thereby making the attachment between the shock-absorbing body 100 and the outer surface of the battery cell 20 more convenient.

[0043] like Figure 2 and Figure 5 As shown, in one embodiment, the first interface serrated portion 110 is provided with a first serrated tooth 111, and the second interface serrated portion 120 is provided with a first serrated groove 121, with the first serrated tooth 111 located in the first serrated groove 121; when the shock-absorbing body 100 is used to surround and attach to the outer surface of the battery cell 20, the first serrated tooth 111 and the first serrated groove 121 are correspondingly provided so that the first serrated tooth 111 and the first serrated groove 121 are adapted to each other, so that the connection and adaptability of the first serrated tooth 111 and the first serrated groove 121 are good.

[0044] like Figure 2 and Figure 5 As shown, in one embodiment, there are two first saw teeth 111 and two first saw tooth grooves 121, with each first saw tooth 111 located in a corresponding first saw tooth groove 121. When the shock-absorbing body 100 is used to surround and adhere to the outer surface of the battery cell 20, each first saw tooth 111 is correspondingly arranged with the corresponding first saw tooth groove 121 to increase the number of first saw teeth 111, which is beneficial to the decomposition of the rebound force F, thereby extending the adhesion time of the shock-absorbing component 10 surrounding and adhering to the outer surface of the battery cell 20, and thus making the adhesion effect between the shock-absorbing component 10 and the outer surface of the battery cell 20 better.

[0045] like Figure 2 and Figure 5 As shown, in one embodiment, there are multiple first saw teeth 111 and first saw tooth grooves 121, with each first saw tooth 111 located within a corresponding first saw tooth groove 121. When the shock-absorbing body 100 is used to surround and adhere to the outer surface of the battery cell 20, each first saw tooth 111 is correspondingly arranged with the corresponding first saw tooth groove 121, further increasing the number of first saw teeth 111, which is beneficial to the decomposition of the rebound force F, thereby extending the adhesion time of the shock-absorbing component 10 surrounding and adhering to the outer surface of the battery cell 20, and thus improving the adhesion effect between the shock-absorbing component 10 and the outer surface of the battery cell 20.

[0046] like Figures 3 to 5 As shown, in one embodiment, the tooth width dimension D of the first saw tooth 111 is less than or equal to the vertical height B of the first saw tooth 111.

[0047] Furthermore, to minimize the risk of warping at the sponge interface, the structural design of the shock-absorbing component 10 should minimize the second decomposition force F2. Based on the force analysis of the rebound force F, let the tooth width of the first sawtooth 111 be D and the vertical height of the first sawtooth 111 be B. We obtain F2 = F × sin[arctan(D / 2B)]. Therefore, the second decomposition force F2 is related to both the tooth width D and the vertical height B of the first sawtooth 111. That is, the second decomposition force F2 is directly proportional to the tooth width dimension D of the first saw tooth 111, and the second decomposition force F2 is inversely proportional to the vertical height B of the first saw tooth 111. Therefore, minimizing the tooth width dimension D of the first saw tooth 111 and increasing the vertical height B of the first saw tooth 111 can effectively reduce the second decomposition force F2, thereby extending the adhesion time of the shock-absorbing component 10 around the outer surface of the battery cell 20, and thus improving the adhesion effect between the shock-absorbing component 10 and the outer surface of the battery cell 20.

[0048] Furthermore, in order to avoid the sponge joint from warping as much as possible, the second decomposition force F2 should be minimized in the structural design of the shock absorption component 10. According to the force analysis of the rebound force F, reducing the rebound force F can reduce the second decomposition force F2.

[0049] Specifically, let the length of the shock-absorbing body 100 be A, the cross-sectional length of the battery cell 20 be L, the radius of the arc at the end corner of the battery cell 20 be R, the thickness of the shock-absorbing body 100 be T, and the gap between the first interface serrated part 110 and the second interface serrated part 120 be E. We get A = [(DR)×4] + [(R+T / 2)×π] - E, where π is a constant and π = 3.14. This eliminates the need for the bottom of the shock-absorbing body 10 to be attached to the battery cell 20, thereby reducing the rebound force F and effectively reducing the second decomposition force F2. This extends the adhesion time of the shock-absorbing component 10 around the outer surface of the battery cell 20, resulting in a better adhesion effect between the shock-absorbing component 10 and the outer surface of the battery cell 20.

[0050] like Figure 5 As shown, in one embodiment, the tooth width dimension D of the first saw tooth 111 is less than or equal to the tooth width dimension F of the first saw tooth groove 121, so that the first saw tooth 111 and the first saw tooth groove 121 are adapted to each other, and the connection and adaptation of the first saw tooth 111 and the first saw tooth groove 121 are better.

[0051] like Figure 5 As shown, in one embodiment, the vertical height B of the first saw tooth 111 is less than or equal to the vertical depth C of the first saw tooth groove 121, so that the first saw tooth 111 and the first saw tooth groove 121 are adapted to each other, and the connection between the first saw tooth 111 and the first saw tooth groove 121 is better.

[0052] like Figure 2 and Figure 4 As shown, this disclosure also provides a nickel-metal hydride battery 30, including a battery cell 20 and a shock-absorbing component 10 of any of the above embodiments, the shock-absorbing component 10 being attached to the outer surface of the battery cell 20.

[0053] Compared with the prior art, this disclosure has at least the following advantages:

[0054] 1. Since the shock-absorbing body 100 is used to surround and attach to the outer surface of the battery cell 20, the first interface serrated part 110 and the second interface serrated part 120 are correspondingly attached to the outer surface of the battery cell 20, so that the first interface serrated part 110 and the second interface serrated part 120 are correspondingly set to form the interface of the shock-absorbing component 10, so that the interface of the shock-absorbing component 10 is serrated. The rebound force F acts on the serrated inclined edge at the interface of the shock-absorbing component 10. According to the force analysis of the rebound force F, the rebound force F is decomposed into a first decomposition force F1 and a second decomposition force F2. The first decomposition force F1 is set parallel to the serrated inclined edge, and the second decomposition force F2 is set perpendicular to the serrated inclined edge. Therefore, the second decomposition force F2 is the force that causes the interface of the shock-absorbing component 10 to have poor lifting.

[0055] 2. After the shock-absorbing component 10 is attached to the outer surface of the battery cell 20 for a period of time, since the second decomposition force F2 is less than the rebound force F, the rebound force at the interface of the serrated shock-absorbing component 10 is smaller, thus extending the adhesion time at the interface of the serrated shock-absorbing component 10. This effectively extends the adhesion time between the shock-absorbing component 10 and the outer surface of the battery cell 20. Compared with the traditional interface method of the shock-absorbing component 10, the interface method of the serrated shock-absorbing component 10 makes it more difficult to achieve an adhesion force less than the rebound force F, thereby solving the problem that the interface of the shock-absorbing component 10 is prone to lifting defects in the prior art. This makes it less likely for the interface of the serrated shock-absorbing component 10 to lift defects, resulting in a better adhesion effect between the shock-absorbing component 10 and the outer surface of the battery cell 20.

[0056] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A shock-absorbing assembly for surrounding the outer surface of a battery cell (20), characterized in that, The shock-absorbing assembly (10) includes a shock-absorbing body (100), which has a first interface serrated portion (110) and a second interface serrated portion (120) disposed opposite to each other. The shock-absorbing body (100) is used to surround and attach to the outer surface of the battery cell (20), so that the first interface serrated portion (110) and the second interface serrated portion (120) are correspondingly disposed and attached to the outer surface of the battery cell (20).

2. The shock absorption component according to claim 1, characterized in that, The shock-absorbing body (100) is a sponge structure, a rubber structure, or a silicone structure.

3. The shock absorption component according to claim 1, characterized in that, The shock-absorbing body (100) is provided with an adhesive layer (130) at the connection between it and the outer surface of the battery cell (20).

4. The shock absorption component according to claim 1, characterized in that, The first interface sawtooth portion (110) is provided with a first sawtooth (111), and the second interface sawtooth portion (120) is provided with a first sawtooth groove (121). The first sawtooth (111) is located in the first sawtooth groove (121). When the shock-absorbing body (100) is used to surround and attach to the outer surface of the battery cell (20), the first sawtooth (111) is correspondingly provided with the first sawtooth groove (121).

5. The shock absorption component according to claim 4, characterized in that, The number of the first sawtooth (111) and the first sawtooth groove (121) are both two, and each first sawtooth (111) is located in the corresponding first sawtooth groove (121); when the shock-absorbing body (100) is used to surround and attach to the outer surface of the battery cell (20), each first sawtooth (111) is correspondingly arranged with the corresponding first sawtooth groove (121).

6. The shock absorption component according to claim 4, characterized in that, The number of the first saw teeth (111) and the first saw tooth groove (121) are both multiple, and each first saw tooth (111) is located in the corresponding first saw tooth groove (121); when the shock-absorbing body (100) is used to surround and attach to the outer surface of the battery cell (20), each first saw tooth (111) is correspondingly arranged with the corresponding first saw tooth groove (121).

7. The shock absorption component according to claim 4, characterized in that, The tooth width of the first saw tooth (111) is less than or equal to the vertical height of the first saw tooth (111).

8. The shock-absorbing component according to claim 7, characterized in that, The tooth width of the first saw tooth (111) is less than or equal to the tooth width of the first saw tooth groove (121).

9. The shock absorption assembly according to claim 8, characterized in that, The vertical height of the first saw tooth (111) is less than or equal to the vertical depth of the first saw tooth groove (121).

10. A nickel-metal hydride battery, characterized in that, It includes a battery cell (20) and a shock-absorbing component (10) according to any one of claims 1 to 9, the shock-absorbing component (10) being attached to the outer surface of the battery cell (20).

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