Battery cell shock absorption mounting structure, battery pack and electric power tool

Abstract

The utility model discloses a kind of electric core shock-absorbing mounting structures, including shell and electric core, the electric core is arranged in the shell, still including clamping sleeve and soft rubber shock-absorbing block, the electric core is clamped in the clamping sleeve, the soft rubber shock-absorbing block is arranged between the clamping sleeve and the shell, the soft rubber shock-absorbing block is attached to the outer wall of clamping sleeve and the inner wall of shell, the soft rubber shock-absorbing block does not contact the electric core. The application also discloses battery pack and electric tool comprising the mounting structure.

Description

Technical Field

[0001] This utility model relates to the field of electronic product accessories, and in particular to a cell shock absorption mounting structure, a battery pack, and a power tool. Background Technology

[0002] Battery packs are commonly used power sources in power tools. The main structure of a battery pack includes several battery cells and a housing. The battery cells are arranged inside the housing, and its structure is roughly as shown in patent publication document CN202749439U. There is a problem with this type of battery pack during use, that is, the battery cells are just stuck inside the housing, so the vibration generated by the housing will be directly transmitted to the battery cells. If the battery cells are subjected to vibration during charging and discharging, it will easily lead to a reduction in the lifespan of the battery cells. Utility Model Content

[0003] To address the aforementioned problems, this utility model proposes a cell vibration damping mounting structure. The presence of soft rubber damping blocks can buffer and dampen vibrations between the clamping sleeve and the housing, minimizing the transmission of vibrations to the clamping sleeve and ensuring that the cell inside the clamping sleeve is not affected by vibrations, thus ensuring a relatively long service life for the cell.

[0004] The technical solution adopted by this utility model is as follows: A cell vibration damping mounting structure includes a housing and a cell, wherein the cell is disposed within the housing. The structure also includes a clamping sleeve and a soft rubber damping block. The cell is clamped within the clamping sleeve, and the soft rubber damping block is disposed between the clamping sleeve and the housing. The soft rubber damping block is in close contact with the outer wall of the clamping sleeve and the inner wall of the housing, and does not contact the cell.

[0005] This type of battery cell vibration damping mounting structure first clamps the battery cell into a clamping sleeve, and then places a soft rubber vibration damping block between the clamping sleeve and the housing. The soft rubber vibration damping block is used to dampen vibration between the clamping sleeve and the housing. Since the vibration generated by the operation of the power tool is transmitted to the housing, and the external force acts directly on the housing, the soft rubber vibration damping block placed between the clamping sleeve and the housing in this structure can buffer and dampen vibration between the clamping sleeve and the housing. This can minimize the transmission of vibration to the clamping sleeve, ensure that the battery cell inside the clamping sleeve is not affected by vibration, and ensure that the battery cell has a relatively long service life.

[0006] In this specific installation structure, the battery cell is a cylindrical battery cell (including but not limited to 18650 battery cells), and the soft rubber shock absorber includes, but is not limited to, rubber or silicone.

[0007] In this specific installation structure, there are multiple soft rubber shock absorbers, and the soft rubber shock absorbers are distributed around the perimeter of the clamping sleeve.

[0008] Optionally, the clamping sleeve has a recessed groove, and the soft rubber shock-absorbing block is clamped in the recessed groove.

[0009] A recess is set up, and the soft rubber shock absorber is placed in the recess. This ensures that the soft rubber shock absorber remains stable between the clamping sleeve and the housing, and ensures that the soft rubber shock absorber itself will not move.

[0010] Optionally, the recess is a cross-shaped recess, and the soft rubber shock absorber is a cross-shaped soft rubber shock absorber. The soft rubber shock absorber is provided with a first flat surface and a second flat surface. The first flat surface is close to the clamping sleeve, and the second flat surface is close to the housing. The first flat surface and the second flat surface are in a parallel state.

[0011] The first flat surface is used to press against the clamping sleeve, and the second flat surface is used to press against the inner wall of the housing. This is to maximize the friction between the soft rubber shock absorber and the clamping sleeve and the housing, so as to ensure that both remain stable.

[0012] Optionally, a notch is provided on the wall of the settling tank, and the soft rubber shock-absorbing block is pressed tightly against the notch.

[0013] A notch is made in the wall of the settling tank, and part of the soft rubber shock absorber is located inside the notch and close to the notch. Therefore, the soft rubber shock absorber itself has a certain degree of torsion. Because the soft rubber shock absorber itself has a certain degree of torsion, it can better absorb shock and buffer between the clamping sleeve and the shell. At the same time, the existence of the notch makes it easy to remove the soft rubber shock absorber from the settling tank during disassembly.

[0014] Optionally, the soft rubber shock absorber block is provided with a semi-cylindrical protrusion, which is in close contact with the wall of the settling trough.

[0015] The protrusion is pressed tightly against the wall of the settling tank, which ensures that there is a gap between the soft rubber damping block and the wall of the settling tank. This ensures that the soft rubber damping block can be stably clamped on the jacket and that the soft rubber damping block itself can undergo a certain degree of torsional deformation as needed.

[0016] Optionally, the protrusions are parallel and do not contact each other.

[0017] A battery pack including the cell shock absorption mounting structure described above.

[0018] An electric tool, comprising a battery pack as described above.

[0019] The beneficial effects of this utility model are: the presence of the soft rubber shock-absorbing block can play a buffering and shock-absorbing role between the clamping sleeve and the shell, which can minimize the transmission of vibration to the clamping sleeve, ensure that the battery cell inside the clamping sleeve is not affected by vibration, and ensure that the battery cell has a relatively long service life. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 This is a schematic diagram showing the positional relationship of the soft rubber shock absorber on the clamping sleeve; Figure 2 yes Figure 1 A simplified enlarged diagram of point A in the middle; Figure 3 This is a simplified structural diagram of a soft rubber shock absorber. Figure 4 This is a simplified schematic diagram of the battery pack structure.

[0022] The figures are labeled as follows: 1. Battery cell; 2. Clamping sleeve; 201. Sink; 2011. Notch; 3. Soft rubber shock absorber; 301. First flat surface; 302. Second flat surface; 303. Protrusion; 4. Housing. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings. Example 1

[0026] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 and appendix Figure 4 As shown, a shock-absorbing mounting structure for a battery cell 1 includes a housing and a battery cell 1. The battery cell 1 is disposed inside the housing. The structure also includes a clamping sleeve 2 and a soft rubber shock-absorbing block 3. The battery cell 1 is clamped inside the clamping sleeve 2. The soft rubber shock-absorbing block 3 is disposed between the clamping sleeve 2 and the housing. The soft rubber shock-absorbing block 3 is close to the outer wall of the clamping sleeve 2 and the inner wall of the housing. The soft rubber shock-absorbing block 3 does not contact the battery cell 1.

[0027] In this type of shock-absorbing mounting structure for battery cell 1, the battery cell 1 is first clamped and installed inside the clamping sleeve 2. Then, a soft rubber shock-absorbing block 3 is placed between the clamping sleeve 2 and the housing. The soft rubber shock-absorbing block 3 is used to absorb vibration between the clamping sleeve 2 and the housing. Since the vibration generated during the operation of the power tool is transmitted to the housing, and the external force acts directly on the housing, the soft rubber shock-absorbing block 3 placed between the clamping sleeve 2 and the housing in this structure can play a buffering and shock-absorbing role between the clamping sleeve 2 and the housing. This can minimize the transmission of vibration to the clamping sleeve, ensure that the battery cell 1 inside the clamping sleeve is not affected by vibration, and ensure that the battery cell 1 has a relatively long service life.

[0028] In this specific installation structure, the battery cell 1 is the battery cell 1 on a cylinder (including but not limited to 18650 battery cell 1), and the soft rubber shock absorber 3 includes, but is not limited to, rubber or silicone.

[0029] In this specific installation structure, there are multiple soft rubber shock absorbers 3, and the soft rubber shock absorbers 3 are distributed around the periphery of the clamping sleeve 2.

[0030] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 and appendix Figure 4 As shown, the clamping sleeve 2 has a recess 201, and the soft rubber shock absorber 3 is clamped in the recess 201.

[0031] Set the sink 201 and place the soft rubber shock absorber 3 inside the sink 201. This ensures that the soft rubber shock absorber 3 remains stable between the clamping sleeve 2 and the housing, and ensures that the soft rubber shock absorber 3 itself will not move.

[0032] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 and appendix Figure 4As shown, the sink 201 is a cross-shaped sink 201, and the soft rubber shock absorber 3 is a cross-shaped soft rubber shock absorber 3. The soft rubber shock absorber 3 is provided with a first flat surface 301 and a second flat surface 302. The first flat surface 301 is attached to the clamping sleeve 2, and the second flat surface 302 is attached to the shell. The first flat surface 301 and the second flat surface 302 are in a parallel state.

[0033] The first flat surface 301 is used to press against the clamping sleeve 2, and the second flat surface 302 is used to press against the inner wall of the housing. This is to maximize the friction between the soft rubber shock absorber 3, the clamping sleeve 2, and the housing, and to ensure that both remain stable.

[0034] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 and appendix Figure 4 As shown, a notch 2011 is provided on the wall of the settling tank 201, and the soft rubber shock absorber 3 is attached to the notch 2011.

[0035] A notch 2011 is made in the wall of the sink 201, and a part of the soft rubber shock absorber 3 is located in the notch 2011 and is close to the notch 2011. Therefore, the soft rubber shock absorber 3 has a certain degree of torsion. Since the soft rubber shock absorber 3 has a certain degree of torsion, it can better absorb shock and buffer between the clamping sleeve 2 and the shell. At the same time, the presence of the notch 2011 makes it easy to remove the soft rubber shock absorber 3 from the sink 201 during disassembly.

[0036] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 and appendix Figure 4 As shown, the soft rubber shock absorber 3 is provided with a semi-cylindrical protrusion 303, which is attached to the wall of the sink 201.

[0037] The protrusion 303 is pressed against the wall of the sink 201, which ensures that there is a gap between the soft rubber shock absorber 3 and the wall of the sink 201. This ensures that the soft rubber shock absorber 3 can be stably clamped on the sleeve and that the soft rubber shock absorber 3 itself can undergo a certain degree of torsional deformation as needed.

[0038] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 and appendix Figure 4 As shown, the protrusions 303 are parallel and do not contact each other. Example 2

[0039] A battery pack includes a mounting structure as shown in Embodiment 1, with the external shape as shown in the attached figure. Figure 4 As shown in the image. Example 3

[0040] An electric tool includes a battery pack as shown in Example 2.

[0041] The above-described embodiments only illustrate some aspects of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cell vibration damping mounting structure, comprising a housing and a cell, wherein the cell is disposed within the housing, characterized in that, It also includes a clamping sleeve and a soft rubber shock absorber. The battery cell is clamped in the clamping sleeve, and the soft rubber shock absorber is disposed between the clamping sleeve and the housing. The soft rubber shock absorber is close to the outer wall of the clamping sleeve and the inner wall of the housing, and the soft rubber shock absorber does not contact the battery cell.

2. The cell vibration damping mounting structure according to claim 1, characterized in that, The clamping sleeve has a recessed groove, and the soft rubber shock absorber is clamped in the recessed groove.

3. The cell vibration damping mounting structure according to claim 2, characterized in that, The recess is cross-shaped, and the soft rubber shock absorber is cross-shaped. The soft rubber shock absorber is provided with a first flat surface and a second flat surface. The first flat surface is close to the clamping sleeve, and the second flat surface is close to the housing. The first flat surface and the second flat surface are parallel to each other.

4. The cell vibration damping mounting structure according to claim 2, characterized in that, The wall of the settling tank has a notch, and the soft rubber shock absorber is pressed against the notch.

5. The cell vibration damping mounting structure according to claim 2, characterized in that, The soft rubber shock absorber has a semi-cylindrical protrusion that fits tightly against the wall of the settling trough.

6. The cell vibration damping mounting structure according to claim 5, characterized in that, The protrusions are parallel and do not contact each other.

7. A battery pack, characterized in that, Including the cell vibration damping mounting structure as described in any one of claims 1 to 6.

8. A power tool, characterized in that, Includes the battery pack as described in claim 7.

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