Top cover, battery and electronic equipment

Abstract

The utility model provides a top cover, a battery and electronic equipment. The top cover comprises a light aluminum sheet, an upper plastic ring, an extension edge part formed by the outward extension of the upper plastic ring, and a top cover patch, the light aluminum sheet is arranged on the top surface of the battery; the upper plastic ring is used for surrounding the side surface of a pole of the battery, and the bottom surface of the upper plastic ring is propped against the surface of the bright aluminum sheet; the extension edge part is arranged on one side, far away from a pole of the battery, of the upper plastic ring; the top cover patch is arranged on one side, back to the battery, of the light aluminum sheet, and one side, facing the battery, of the top cover patch abuts against one side, back to the battery, of the extension edge part. And the gap between the top cover patch and the battery pole is filled through the expansion edge part. And the top cover patch is abutted against the extension edge part, so that a gap between the top cover patch and the light aluminum sheet is isolated. And the metal chips are prevented from short-circuiting the light aluminum sheet and the pole of the battery through the gap.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a top cover, a battery and an electronic device. Background Art

[0002] In the current battery cover assembly structure, the riveted aluminum block is installed on the plain aluminum sheet and separated by the upper plastic.

[0003] Current technical solution: The top cover patch and the upper plastic are installed with a gap fit, and the width of the gap is about 0.3mm. After the top cover patch, the upper plastic and the battery are installed, the gap between the top cover patch and the upper plastic will expose the bare aluminum sheet under the top cover patch, so that there is a certain insulation risk between the pole and the bare aluminum sheet in the gap. Metal shavings (especially strip-shaped metal shavings) will pass through the gap and overlap the bare aluminum sheet and the riveted aluminum block, causing short circuits and other situations. Utility Model Content

[0004] Based on this, it is necessary to provide a top cover, a battery and an electronic device to address the above technical problems.

[0005] A top cover, comprising: a plain aluminum sheet, an upper plastic ring and a top cover patch;

[0006] The bare aluminum sheet is used to be arranged on the top surface of the battery;

[0007] The upper plastic ring is used to surround the side of the battery pole, the outer side of the upper plastic ring extends outward to form an extended edge, and one side of the upper plastic ring and one side of the extended edge abut against the surface of the plain aluminum sheet;

[0008] The top cover patch is arranged on a side of the bare aluminum sheet facing away from the battery, and a side of the top cover patch facing the bare aluminum sheet abuts against a side of the extended edge portion facing away from the bare aluminum sheet.

[0009] In one embodiment, a receiving groove is formed on one side of the smooth aluminum sheet facing the top cover patch, and one side of the upper plastic ring and one side of the extended edge abut against the bottom of the receiving groove, and the outer edge of the extended edge abuts against the side wall of the receiving groove.

[0010] In one embodiment, the accommodating groove is in a square shape.

[0011] In one embodiment, the corners of the accommodating groove are rounded.

[0012] In one of the embodiments, the top cover patch is provided with a pole hole, the pole hole is used to accommodate a pole of a battery, and an edge of the pole hole abuts against a side of the extended edge portion facing away from the plain aluminum sheet.

[0013] In one embodiment, the width of the extended edge is greater than or equal to the width of the gap between the top cover patch and the side surface of the upper plastic ring.

[0014] In one of the embodiments, the distance between a side of the extended edge facing away from the plain aluminum sheet and a side of the plain aluminum sheet facing away from the battery is less than or equal to 0.2 mm.

[0015] In one embodiment, a clamping piece is further included, wherein a lower step surface is provided on one edge of the clamping piece close to the upper plastic ring, and an upper step surface is provided on the top edge of one side of the upper plastic ring close to the pole, and the lower step surface abuts against the upper step surface.

[0016] A battery comprises a battery body, a pole and any of the above-mentioned top covers, wherein the plain aluminum sheet top cover is arranged on the top of the battery body, and the upper plastic ring surrounds the outer side of the pole and abuts against the pole.

[0017] An electronic device comprises the battery mentioned above.

[0018] The top cover, battery and electronic device described above fill the gap between the top cover patch and the battery pole by the extended edge portion. The top cover patch is abutted against the extended edge portion to isolate the gap between the top cover patch and the bare aluminum sheet, thereby preventing metal chips from short-circuiting the bare aluminum sheet and the battery pole through the gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional exploded schematic diagram of a top cover structure in an embodiment;

[0020] Figure 2 A partial cross-sectional view of a top cover structure in one embodiment. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0022] Embodiment 1

[0023] In this embodiment, Figure 1 and Figure 2 As shown, a top cover is provided, which includes: a plain aluminum sheet 100, an upper plastic ring 200 and a top cover patch 300;

[0024] The aluminum sheet 100 is used to be arranged on the top surface of the battery;

[0025] The upper plastic ring 200 is used to surround the side of the battery pole, and the outer side of the upper plastic ring 200 extends outward to form an extended edge 210, and one side of the upper plastic ring 200 and one side of the extended edge 210 abut against the surface of the plain aluminum sheet 100;

[0026] The top cover patch 300 is disposed on a side of the bare aluminum sheet 100 facing away from the battery, and a side of the top cover patch 300 facing the bare aluminum sheet 100 abuts against a side of the extended edge 210 facing away from the bare aluminum sheet 100 .

[0027] In this embodiment, the bare aluminum sheet 100, the upper plastic ring 200 and the top cover patch 300 are sequentially installed at one end of the battery. Among them, the surface of the bare aluminum sheet 100 is provided with a perforation 120, and the diameter of the perforation 120 is greater than the width of the battery pole. The battery pole is penetrated in the perforation 120. One side of the upper plastic ring 200 abuts against the side of the bare aluminum sheet 100 facing away from the battery, and the upper plastic ring 200 is surrounded by the outer side or outer edge of the battery pole, and the upper plastic ring 200 is used to support and fix the battery pole. The upper plastic ring 200 is made of insulating material, which isolates the battery pole from the bare aluminum sheet 100. The extended edge 210 extends from the side of the upper plastic ring 200 facing away from the battery pole, and the side of the extended edge 210 facing the bare aluminum sheet 100 abuts against the surface of the bare aluminum sheet 100. The extended edge 210 is integrally formed with the upper plastic ring 200, so that the material of the extended edge 210 is also an insulating material, so that when metal chips abut the extended edge 210, the metal chips cannot be electrically connected to the bare aluminum sheet 100 through the extended edge 210. The top cover patch 300 is arranged on the side of the bare aluminum sheet 100 facing away from the battery, and wraps the bare aluminum sheet 100. When the top cover patch 300, the upper plastic ring 200 and the bare aluminum sheet 100 are installed on the battery, the edge of the top cover patch 300 abuts against the side of the extended edge 210 facing away from the bare aluminum sheet 100. The upper plastic ring 200 is used to fill the gap between the top cover patch 300 and the battery pole. And the top cover patch 300 is abutted against the extended edge 210, and the extended edge 210 isolates the gap between the top cover patch 300 and the bare aluminum sheet 100. This prevents metal chips from short-circuiting the aluminum sheet 100 and the battery pole through the gap.

[0028] like Figure 1 and Figure 2 As shown, in one embodiment, a receiving groove 110 is provided on one side of the smooth aluminum sheet 100 facing the top cover patch 300, and one side of the upper plastic ring 200 and one side of the extended edge 210 abut against the bottom of the receiving groove 110, and the outer edge of the extended edge 210 abuts against the side wall of the receiving groove 110.

[0029] In this embodiment, a receiving groove 110 is provided on the side of the aluminum sheet 100 facing the top cover patch 300, and the upper plastic ring 200 is placed in the receiving groove 110, so that the bottom surface of the upper plastic ring 200 abuts against the bottom surface of the receiving groove 110, which is conducive to reducing the height of the pole and the volume of the battery. At the same time, the gap between the upper plastic ring 200 and the bottom surface of the receiving groove 110 is reduced. The side surface of the extended edge 210 abuts against the side surface of the receiving groove 110, reducing the gap between the extended edge 210 and the side surface of the receiving groove 110.

[0030] like Figure 1 As shown, in one embodiment, the receiving groove 110 is in a square shape.

[0031] In this embodiment, the shape of the receiving groove 110 is square, and the square receiving groove 110 is used to limit the upper plastic ring 200 from rotating around the battery pole, so that the upper plastic ring 200 provides a stable supporting force for the battery pole.

[0032] like Figure 1 As shown, in one embodiment, the corners of the accommodating groove 110 are rounded.

[0033] In this embodiment, the corners of the accommodating groove 110 are set to be rounded, which is beneficial to dispersing the stress between the upper plastic ring 200 and the aluminum sheet 100, and improving the durability and reliability of the abutment structure between the upper plastic ring 200 and the aluminum sheet 100.

[0034] like Figure 1 and Figure 2 As shown, in one embodiment, the top cover patch 300 is provided with a pole hole 310 , and the pole hole 310 is used to accommodate the pole of the battery, and the edge of the pole hole 310 abuts against the side of the extended edge 210 facing away from the plain aluminum sheet 100 .

[0035] In this embodiment, a pole hole 310 is provided on the surface of the top cover patch 300, and the pole of the battery and the upper plastic ring 200 are both inserted into the pole hole 310, and the pole of the battery and the end of the upper plastic ring 200 away from the bare aluminum sheet 100 protrude from the side of the top cover patch 300 facing away from the bare aluminum sheet 100. The edge of the pole hole 310 abuts against the side of the extended edge 210 facing away from the bare aluminum sheet 100, and the gap between the top cover patch 300 and the upper plastic ring 200 is blocked by the extended edge 210.

[0036] like Figure 2 As shown, in one embodiment, the width of the extended edge portion 210 is greater than or equal to the width of the gap between the top cover patch 300 and the side surface of the upper plastic ring 200 .

[0037] In this embodiment, in order to enable the top cover patch 300 to be smoothly installed on the surface of the battery, the size of the pole hole 310 is greater than the width of the upper plastic ring 200, so that there is a gap between the top cover patch 300 and the side of the upper plastic ring 200. The width B of the extended edge 210 is greater than or equal to the gap width between the top cover patch 300 and the upper plastic ring 200, so that the edge of the top cover patch 300 facing the upper plastic ring 200 is abutted or overlapped with the extended edge 210, so that the extended edge 210 can completely fill the gap. When metal chips fall into the gap between the top cover patch 300 and the upper plastic ring 200, the metal chips are blocked by the extended edge 210, so that the metal chips cannot be connected to the bare aluminum sheet 100.

[0038] like Figure 2 As shown, in one embodiment, the distance between the side of the extended edge 210 facing away from the battery and the side of the bare aluminum sheet 100 facing away from the battery is less than or equal to 0.2 mm.

[0039] In this embodiment, the depth of the accommodating groove 110 is adapted to the thickness of the extended edge 210. Specifically, when the upper plastic ring 200 and the extended edge 210 are placed in the accommodating groove 110, the distance between the side of the extended edge 210 facing away from the plain aluminum sheet 100 and the side of the plain aluminum sheet 100 facing away from the battery is no more than 0.2 mm, so as to limit the size of the gap between the top cover patch 300 and the plain aluminum sheet 100, so that the top cover patch 300 and the plain aluminum sheet 100 are more closely abutted. Prevent metal chips from entering the gap between the top cover patch 300 and the plain aluminum sheet 100.

[0040] like Figure 1 and Figure 2 As shown, in one embodiment, a snap-in piece 400 is further included, and a lower step surface 410 is provided on one edge of the snap-in piece 400 close to the upper plastic ring 200 , and an upper step surface 220 is provided on the top edge of one side of the upper plastic ring 200 close to the pole, and the lower step surface 410 abuts against the upper step surface 220 .

[0041] In this embodiment, the upper plastic ring 200 is installed on the peripheral side of the pole of the battery, and an upper stepped surface 220 is provided on the top edge of the upper plastic ring 200 close to the pole. After the upper plastic ring 200 is installed, the clamping piece 400 is installed on the pole of the battery and the side of the upper plastic ring 200 facing away from the plain aluminum sheet 100. The edge of the clamping piece 400 is provided with a lower stepped surface 410, which abuts against the upper stepped surface 220, thereby enhancing the stability of the connection structure between the upper plastic ring 200 and the clamping piece 400, so that the upper plastic ring 200 can abut against the surface of the plain aluminum sheet 100 more stably.

[0042] like Figure 2As shown, in one embodiment, a protruding edge portion 420 is provided on the side of the clamping piece 400 facing the pole, and a limiting groove is provided on the side of the pole, and the protruding edge portion 420 is clamped in the limiting groove.

[0043] In this embodiment, a hole is formed in the clamping piece 400, and the top of the battery pole passes through the hole. When the clamping piece 400 is installed on the pole, the raised edge 420 on the side of the clamping piece 400 is clamped in the limiting groove of the pole. The lower step surface 410 is in contact with the upper step surface 220, so that the clamping piece 400 is more stably installed on the side of the battery pole.

[0044] like Figure 1 and 2 As shown, in one embodiment, the clamping piece 400 is provided with a pressing groove 430 on the side facing away from the battery pole, and the end face of the pole is provided with a pressing plate 500, and the edge of the pressing plate 500 abuts against the bottom surface of the pressing groove.

[0045] In this embodiment, after the clamping piece 400 is installed on the battery pole, a connecting portion is installed on the center of the pressing plate 500, and a connecting hole is opened at the end of the battery pole facing away from the battery, and the connecting portion of the pressing plate 500 is clamped in the connecting hole. The length of the pressing plate 500 is greater than the width of the battery pole, so that the edge of the pressing plate 500 abuts against the pressing groove 430, which is used to limit the separation of the clamping piece 400 from the battery pole and the upper plastic ring 200.

[0046] Embodiment 2

[0047] In one embodiment, a battery is provided, comprising a battery body, a pole and the top cover described in any of the above embodiments, wherein the plain aluminum sheet top cover is arranged on the top of the battery body, and the upper plastic ring surrounds the outer side of the pole and abuts against the pole.

[0048] Embodiment 3

[0049] In one embodiment, an electronic device is provided, comprising: the battery described in any one of the above embodiments.

[0050] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A top cover, characterized in that: include: Plain aluminum sheet, upper plastic ring and top cover patch; The bare aluminum sheet is used to be arranged on the top surface of the battery; The upper plastic ring is used to surround the side of the battery pole, the outer side of the upper plastic ring extends outward to form an extended edge, and one side of the upper plastic ring and one side of the extended edge abut against the surface of the plain aluminum sheet; The top cover patch is arranged on a side of the bare aluminum sheet facing away from the battery, and a side of the top cover patch facing the bare aluminum sheet abuts against a side of the extended edge portion facing away from the bare aluminum sheet.

2. The top cover according to claim 1, characterized in that: A receiving groove is formed on one side of the smooth aluminum sheet facing the top cover patch, and one side of the upper plastic ring and one side of the extended edge abut against the bottom of the receiving groove, and the outer edge of the extended edge abuts against the side wall of the receiving groove.

3. The top cover according to claim 2, characterized in that: The shape of the accommodating groove is square.

4. The top cover according to claim 3, characterized in that: The corners of the accommodating groove are rounded.

5. The top cover according to claim 1, characterized in that: The top cover patch is provided with a pole hole, and the pole hole is used to accommodate the pole of the battery. The edge of the pole hole abuts against a side of the extended edge portion facing away from the plain aluminum sheet.

6. The top cover according to claim 1, characterized in that: The width of the extended edge portion is greater than or equal to the width of the gap between the top cover patch and the side surface of the upper plastic ring.

7. The top cover according to claim 1, characterized in that: The distance between a side of the extended edge facing away from the plain aluminum sheet and a side of the plain aluminum sheet facing away from the battery is less than or equal to 0.2 mm.

8. The top cover according to claim 1, characterized in that: It also includes a clamping piece, wherein a lower step surface is arranged on one side edge of the clamping piece close to the upper plastic ring, and an upper step surface is arranged on the top edge of one side of the upper plastic ring close to the pole, and the lower step surface abuts against the upper step surface.

9. A battery, characterized in that: It comprises a battery body, a pole and a top cover as claimed in any one of claims 1 to 8, wherein the plain aluminum sheet top cover is arranged on the top of the battery body, and the upper plastic ring surrounds the outer side of the pole and abuts against the pole.

10. An electronic device, characterized in that: Comprising the battery as claimed in claim 9.

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