Elastic sheet for button cell and button cell assembly structure

Abstract

The utility model discloses an elastic piece for a button cell and a button cell assembling structure, the elastic piece for the button cell comprises an elastic piece main body, the elastic piece main body is provided with a basic supporting part, and the basic supporting part is provided with a cell elastic contact part; the elastic piece body further comprises an installation fixing part, and a circuit board elastic contact part is arranged at the upper end of the basic supporting part. The elastic sheet for the button cell is novel in structural design, and can be electrically conducted with a PCB (Printed Circuit Board) in a welding-free manner. The button cell assembly structure comprises a PCB, a button cell, a plastic main body and the elastic sheet for the button cell, the plastic main body is provided with a cell mounting hole, the mounting fixing part is fastened on the plastic main body, and the cell elastic contact part extends into the cell mounting hole and elastically abuts against the button cell in the cell mounting hole; the circuit board elastic contact part protrudes and extends to the upper part of the plastic main body and is elastically propped against the PCB; the button battery assembly structure is novel in structural design and simple and convenient in assembly process.

Description

Technical Field

[0001] The utility model relates to the technical field of button battery assembly and connection, in particular to a spring sheet for a button battery and a button battery assembly structure. Background Art

[0002] The patent number is: ZL202321047914.4, and the patent name is: A Chinese utility model patent for a button battery assembly structure, which discloses the following technical solutions, specifically: a button battery assembly structure, including a button battery and a circuit board, the button battery has a positive annular side and a negative terminal surface, a positive conductive spring sheet and a negative conductive spring sheet are installed on the circuit board, the positive conductive spring sheet elastically presses against the positive annular side surface of the button battery, and the negative conductive spring sheet elastically abuts against the negative terminal surface of the button battery; the positive conductive spring sheet includes a positive flat spring wall, the positive flat spring wall and the positive annular side surface of the button battery are in line contact, the negative conductive spring sheet includes a negative arc spring wall, the negative arc spring wall and the negative terminal surface of the button battery are in line contact; the positive conductive spring sheet and the negative conductive spring sheet are both welded on the circuit board, and the circuit board is provided with a first positioning mechanism for positioning the positive conductive spring sheet during welding and a second positioning mechanism for positioning the negative conductive spring sheet.

[0003] The above-mentioned button battery assembly structure has the following defects. Specifically, the conductive spring is electrically connected to the circuit board by welding, and the conductive spring needs to be positioned by a positioning mechanism for welding. The welding process between the conductive spring and the circuit board increases the button battery assembly process. Utility Model Content

[0004] The purpose of the utility model is to provide a spring clip for a button battery in view of the deficiencies in the prior art. The spring clip for a button battery has a novel structural design and can achieve electrical conduction with a PCB circuit board in a welding-free manner, that is, it can effectively save the welding process between the spring clip and the PCB circuit board.

[0005] Another object of the present invention is to provide a button battery assembly structure to address the deficiencies in the prior art. The button battery assembly structure has a novel design and a simple and convenient assembly process.

[0006] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions.

[0007] A spring for a button battery, comprising a spring body, the spring body being provided with a base support portion, the base support portion being provided with a battery elastic contact portion elastically abutting against a ring-shaped side electrode of the button battery when in use;

[0008] The spring sheet body also includes a mounting and fixing portion arranged on the base support portion, and the upper end portion of the base support portion is provided with a circuit board elastic contact portion that bends and extends upward and elastically abuts against the PCB circuit board when in use;

[0009] The base support portion, the battery elastic contact portion, the installation and fixing portion, and the circuit board elastic contact portion are an integrated structure.

[0010] Among them, the basic support part includes a first support part arranged vertically, a second support part arranged at the upper edge of the first support part and arranged horizontally, the battery elastic contact part is arranged at the edge of the first support part, and the circuit board elastic contact part is arranged at the edge of the second support part.

[0011] The button battery spring comprises two battery elastic contact portions, and the two battery elastic contact portions are arranged at two opposite edge positions of the first supporting portion.

[0012] The spring sheet for the button battery includes two elastic circuit board contact portions which are arranged at intervals, and the two elastic circuit board contact portions are respectively arranged at the edges of the second supporting portion.

[0013] Wherein, the installation and fixing portion is provided with a fixing through hole.

[0014] Wherein, the spring sheet main body is a stainless steel spring sheet.

[0015] A button battery assembly structure, comprising a PCB circuit board and a button battery;

[0016] The button battery assembly structure also includes a plastic body and the above-mentioned button battery spring, and the plastic body is provided with a battery installation hole corresponding to the button battery;

[0017] The mounting and fixing portion of the button battery spring is fastened to the plastic body, and the battery elastic contact portion of the button battery spring extends into the battery mounting hole of the plastic body;

[0018] The button battery is embedded in the battery installation hole of the plastic body, and the annular side electrode of the button battery is elastically abutted against the elastic contact part of the battery;

[0019] The circuit board elastic contact portion of the button battery spring protrudes and extends above the plastic body, and the circuit board elastic contact portion elastically abuts against the PCB circuit board.

[0020] The fixing part is provided with a fixing through hole, and the plastic body is provided with a limiting convex portion corresponding to the fixing through hole. The limiting convex portion of the plastic body is inserted into the fixing through hole of the fixing part, and the fixing part is connected with the limiting convex portion by hot pressing.

[0021] Wherein, the installation and fixing part includes a transverse part and a vertical part, the transverse part is provided with a transverse fixing through hole which runs through transversely, and the vertical part is provided with a vertical fixing through hole;

[0022] The limiting protrusion of the plastic body includes a transverse limiting protrusion and a vertical limiting protrusion. The transverse limiting protrusion is inserted into the transverse fixing through hole of the mounting and fixing part, and the vertical limiting protrusion is inserted into the vertical fixing through hole of the mounting and fixing part. The transverse part of the mounting and fixing part is hot-pressed and fastened to the transverse limiting protrusion, and the vertical part of the mounting and fixing part is hot-pressed and fastened to the vertical limiting protrusion.

[0023] Compared with the prior art, the present invention has the following beneficial effects, specifically:

[0024] 1. The spring body of the utility model is in elastic contact with the PCB circuit board through its circuit board elastic contact part to achieve electrical conduction. Compared with the welding electrical connection method in the prior art, the spring for button battery of the utility model can achieve electrical conduction with the PCB circuit board in a welding-free manner, that is, it can effectively save the welding process between the spring and the PCB circuit board, and the spring for button battery has the advantage of novel structural design;

[0025] 2. Since the spring clip for the button battery can be electrically connected to the PCB circuit board in a welding-free manner, the welding process between the spring clip and the PCB circuit board can be effectively saved. Therefore, the button battery assembly structure of the utility model has the advantages of novel structural design and simple and convenient assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention is further described below with reference to the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

[0027] Figure 1 The figure is a schematic diagram of the structure of the spring for the button battery of the utility model.

[0028] Figure 2 It is a structural schematic diagram of the spring for button battery of the utility model from another perspective.

[0029] Figure 3 It is an exploded schematic diagram of the button battery assembly structure of the present utility model.

[0030] Figure 4 for Figure 3 A partial enlarged schematic diagram of .

[0031] exist Figures 1 to 4 Included are:

[0032] 1-spring body; 2-elastic contact part of battery; 3-installation and fixing part; 31-horizontal part; 311-horizontal fixing through hole; 32-vertical part; 321-vertical fixing through hole; 4-elastic contact part of circuit board; 51-first supporting part; 52-second supporting part; 6-PCB circuit board; 7-button battery; 8-plastic body; 81-battery installation hole; 82-horizontal limiting protrusion; 83-vertical limiting protrusion. DETAILED DESCRIPTION

[0033] The present invention will be described below in conjunction with specific implementation methods.

[0034] Embodiment 1, as Figures 1 to 4 As shown, a spring for a button battery includes a spring body 1, wherein the spring body 1 is provided with a base support portion, and the base support portion is provided with a battery elastic contact portion 2 which elastically abuts against the annular side electrode of the button battery 7 when in use.

[0035] Furthermore, the spring body 1 also includes a mounting and fixing portion 3 arranged on the base support portion, and the upper end portion of the base support portion is provided with a circuit board elastic contact portion 4 that bends and extends upward and elastically abuts against the PCB circuit board 6 when in use.

[0036] Furthermore, the base support portion, the battery elastic contact portion 2, the installation and fixing portion 3, and the circuit board elastic contact portion 4 are an integrated structure.

[0037] It should be explained that the spring body 1 of the first embodiment can be made of a stainless steel sheet through punching and bending, that is, the spring body 1 of the first embodiment is a stainless steel spring; wherein the thickness of the stainless steel sheet used to prepare the spring body 1 is 0.15-0.5 mm.

[0038] It should be pointed out that, for the spring clip for button battery of the first embodiment, during the process of assembling and realizing the electrical connection between the button battery 7 and the PCB circuit board 6, the installation and fixing portion 3 is used to realize the installation and fixing of the spring clip body 1, the battery elastic contact portion 2 elastically abuts against the annular side electrode of the button battery 7, and the circuit board elastic contact portion 4 elastically abuts against the PCB circuit board 6, that is, the spring clip body 1 realizes the electrical connection between the annular side electrode of the button battery 7 and the PCB circuit board 6; specifically, the surface of the PCB circuit board 6 is provided with a corresponding copper-clad contact portion, and the circuit board elastic contact portion 4 of the spring clip body 1 elastically abuts against the copper-clad contact portion of the PCB circuit board 6.

[0039] It should be emphasized that the spring body 1 of the first embodiment of the present invention elastically abuts against the PCB circuit board 6 through its circuit board elastic contact portion 4 to achieve electrical conduction. Compared with the welding electrical connection method in the prior art, the spring for the button battery of the first embodiment of the present invention can achieve electrical conduction with the PCB circuit board 6 in a welding-free manner, that is, it can effectively save the welding process between the spring and the PCB circuit board 6.

[0040] Based on the above, it can be seen that through the above structural design, the spring clip for button battery in the first embodiment has the advantage of novel structural design, and can achieve electrical conduction with the PCB circuit board 6 in a welding-free manner, that is, it can effectively save the welding process between the spring clip and the PCB circuit board 6.

[0041] Embodiment 2, as Figure 1 , Figure 2 as well as Figure 4 As shown, the difference between the second embodiment and the first embodiment is that the basic support portion includes a first support portion 51 arranged vertically, a second support portion 52 arranged at the upper edge of the first support portion 51 and arranged horizontally, the battery elastic contact portion 2 is arranged at the edge of the first support portion 51, and the circuit board elastic contact portion 4 is arranged at the edge of the second support portion 52.

[0042] Embodiment three, as Figures 1 to 4 As shown, the difference between the third embodiment and the second embodiment is that the spring piece for button battery includes two battery elastic contact parts 2 , and the two battery elastic contact parts 2 are arranged at two opposite edge positions of the first supporting part 51 .

[0043] By setting two battery elastic contact parts 2, when in use, the button battery spring of the third embodiment abuts against the annular side electrode of the button battery 7 through the two battery elastic contact parts 2 and achieves electrical conduction. The dual battery elastic contact parts 2 can effectively increase the stability of the electrical connection between the spring body 1 and the button battery 7.

[0044] Embodiment 4, as Figures 1 to 4 As shown, the difference between the fourth embodiment and the second embodiment is that the spring piece for button battery includes two elastic circuit board contact parts 4 arranged at intervals, and the two elastic circuit board contact parts 4 are respectively arranged at the edges of the second supporting part 52.

[0045] By setting two circuit board elastic contact parts 4, when in use, the spring clip for the button battery of the fourth embodiment of the present invention abuts against the PCB circuit board 6 through the two circuit board elastic contact parts 4 and realizes electrical conduction. The double circuit board elastic contact parts 4 can effectively increase the stability of the electrical connection between the spring clip body 1 and the PCB circuit board 6.

[0046] Embodiment 5, as Figure 3 and Figure 4As shown, a button battery assembly structure includes a PCB circuit board 6 and a button battery 7.

[0047] The button battery assembly structure further includes a plastic body 8 and the above-mentioned button battery spring. The plastic body 8 is provided with a battery installation hole 81 corresponding to the button battery 7 .

[0048] Furthermore, the mounting and fixing portion 3 of the button battery spring is fastened to the plastic body 8 , and the battery elastic contact portion 2 of the button battery spring extends into the battery mounting hole 81 of the plastic body 8 .

[0049] Furthermore, the button battery 7 is embedded in the battery installation hole 81 of the plastic body 8 , and the annular side electrode of the button battery 7 is elastically abutted against the battery elastic contact portion 2 .

[0050] In addition, the circuit board elastic contact portion 4 of the button battery spring protrudes and extends above the plastic body 8 , and the circuit board elastic contact portion 4 elastically abuts against the PCB circuit board 6 .

[0051] During the assembly process of the button battery assembly structure of the fifth embodiment, the spring body 1 is fastened and installed on the plastic body 8 through its mounting and fixing portion 3 to achieve the installation and fixation of the spring body 1; wherein, the battery elastic contact portion 2 of the spring body 1 extends into the battery mounting hole 81 of the plastic body 8, and when the button battery 7 is aligned and embedded into the battery mounting hole 81 of the plastic body 8, the battery mounting hole 81 positions the button battery 7, and the battery elastic contact portion 2 of the spring body 1 abuts against the annular side electrode of the button battery 7 and is electrically conductive, and the circuit board elastic contact portion 4 of the spring body 1 protrudes and extends above the plastic body 8, and the circuit board elastic contact portion 4 abuts against the PCB circuit board 6 and is electrically conductive.

[0052] It should be emphasized that since the spring clip for the button battery can be electrically connected to the PCB circuit board 6 in a welding-free manner, the welding process between the spring clip and the PCB circuit board 6 can be effectively saved. Therefore, the button battery assembly structure of the fifth embodiment has the advantages of novel structural design and simple and convenient assembly process.

[0053] Embodiment six, as Figure 4 As shown, the difference between the sixth embodiment and the fifth embodiment is that a fixing through hole is provided in the installation fixing portion 3, and a limiting protrusion is provided in the plastic body 8 corresponding to the fixing through hole, the limiting protrusion of the plastic body 8 is inserted into the fixing through hole of the installation fixing portion 3, and the installation fixing portion 3 is fastened to the limiting protrusion by hot pressing.

[0054] Specifically, the mounting and fixing part 3 includes a transverse part 31 and a vertical part 32. The transverse part 31 is provided with a transverse fixing through hole 311 which penetrates transversely, and the vertical part 32 is provided with a vertical fixing through hole 321. The limiting protrusion of the plastic body 8 includes a transverse limiting protrusion 82 and a vertical limiting protrusion 83. The transverse limiting protrusion 82 is inserted into the transverse fixing through hole 311 of the mounting and fixing part 3, and the vertical limiting protrusion 83 is inserted into the vertical fixing through hole 321 of the mounting and fixing part 3. The transverse part 31 of the mounting and fixing part 3 is fastened and connected with the transverse limiting protrusion 82 by hot pressing, and the vertical part 32 of the mounting and fixing part 3 is fastened and connected with the vertical limiting protrusion 83 by hot pressing.

[0055] In the process of fastening and connecting the installation and fixing part 3 of the spring body 1 with the plastic body 8, the installation and fixing part 3 is first buckled and fixed to the corresponding position of the plastic body 8. Specifically, the transverse part 31 of the installation and fixing part 3 is buckled with the transverse limiting protrusion 82 through the transverse fixing through hole 311 and buckled with the plastic body 8, and the vertical part 32 of the installation and fixing part 3 is buckled with the vertical limiting protrusion 83 through the vertical fixing through hole 321 and buckled with the plastic body 8; after the installation and fixing part 3 is buckled and fixed to the plastic body 8, the transverse part 31 is fastened and connected with the transverse limiting protrusion 82 and the vertical part 32 is fastened and connected with the vertical limiting protrusion 83 by hot pressing.

[0056] It should be explained that, for the above-mentioned fastening structure of the installation and fixing part 3, the horizontal fixing through hole 311 cooperates with the horizontal limiting protrusion 82 to achieve horizontal limiting, and the vertical fixing through hole 321 cooperates with the vertical limiting protrusion 83 to achieve vertical limiting, that is, the installation and fixing part 3 is fastened with the plastic body 8 in both horizontal and vertical directions. The above-mentioned fastening connection method has the advantages of stable connection and good reliability.

[0057] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A spring for a button battery, comprising a spring body (1), the spring body (1) being provided with a base support portion, the base support portion being provided with a battery elastic contact portion (2) for elastically contacting with an annular side electrode of a button battery (7) when in use; Features: The spring sheet body (1) further comprises a mounting and fixing portion (3) arranged on the base support portion, and the upper end portion of the base support portion is provided with a circuit board elastic contact portion (4) which bends and extends upward and elastically abuts against a PCB circuit board (6) when in use; The base support portion, the battery elastic contact portion (2), the installation and fixing portion (3), and the circuit board elastic contact portion (4) are an integrated structure.

2. The spring for a button battery according to claim 1, characterized in that: The basic support portion comprises a first support portion (51) arranged vertically, and a second support portion (52) arranged at the upper edge of the first support portion (51) and arranged horizontally, the battery elastic contact portion (2) being arranged at the edge of the first support portion (51), and the circuit board elastic contact portion (4) being arranged at the edge of the second support portion (52).

3. The spring for a button battery according to claim 2, characterized in that: The spring sheet for a button battery comprises two battery elastic contact portions (2), wherein the two battery elastic contact portions (2) are arranged at two opposite edge positions of the first support portion (51).

4. The spring for a button battery according to claim 2, characterized in that: The spring sheet for a button battery comprises two spaced-apart circuit board elastic contact portions (4), the two circuit board elastic contact portions (4) being respectively arranged at the edges of the second supporting portion (52).

5. The spring for a button battery according to claim 1, characterized in that: The installation and fixing portion (3) is provided with a fixing through hole.

6. The spring for a button battery according to claim 1, characterized in that: The spring sheet body (1) is a stainless steel spring sheet.

7. A button battery assembly structure, comprising a PCB circuit board (6) and a button battery (7); Features: The button battery assembly structure further comprises a plastic body (8) and a spring piece for a button battery according to any one of claims 1 to 6, wherein the plastic body (8) is provided with a battery mounting hole (81) corresponding to the button battery (7); The mounting and fixing portion (3) of the button battery spring is fastened to the plastic body (8), and the battery elastic contact portion (2) of the button battery spring extends into the battery mounting hole (81) of the plastic body (8); The button battery (7) is embedded in the battery installation hole (81) of the plastic body (8), and the annular side electrode of the button battery (7) is elastically abutted against the battery elastic contact portion (2); The circuit board elastic contact portion (4) of the button battery spring extends protrudingly above the plastic body (8), and the circuit board elastic contact portion (4) elastically abuts against the PCB circuit board (6).

8. A button battery assembly structure according to claim 7, characterized in that: The mounting and fixing part (3) is provided with a fixing through hole, and the plastic body (8) is provided with a limiting convex part corresponding to the fixing through hole, the limiting convex part of the plastic body (8) is inserted into the fixing through hole of the mounting and fixing part (3), and the mounting and fixing part (3) is connected to the limiting convex part by hot pressing.

9. A button battery assembly structure according to claim 8, characterized in that: The installation and fixing portion (3) comprises a transverse portion (31) and a vertical portion (32); the transverse portion (31) is provided with a transverse fixing through hole (311) extending transversely therethrough, and the vertical portion (32) is provided with a vertical fixing through hole (321); The limiting convex part of the plastic body (8) comprises a transverse limiting convex part (82) and a vertical limiting convex part (83); the transverse limiting convex part (82) is inserted into the transverse fixing through hole (311) of the mounting and fixing part (3); the vertical limiting convex part (83) is inserted into the vertical fixing through hole (321) of the mounting and fixing part (3); the transverse part (31) of the mounting and fixing part (3) is connected to the transverse limiting convex part (82) by hot pressing, and the vertical part (32) of the mounting and fixing part (3) is connected to the vertical limiting convex part (83) by hot pressing.

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