Cover plate structure and button cell

Abstract

The utility model provides a cover plate structure and a button cell. The cover plate structure comprises a covering piece, an insulating piece and a conductive piece, the covering piece is of an integrally-formed structure and comprises a connecting cover plate and a cover plate leading-out part, the connecting cover plate is provided with an avoiding hole, the periphery of the connecting cover plate is used for being connected to an opening of a shell, the cover plate leading-out part is connected to the periphery of the connecting cover plate, and the insulating piece and the conductive piece are arranged on the connecting cover plate. The cover plate lead-out part is used for protruding out of the outer side of the shell. The conductive part is of an integrally-formed structure and further comprises a conductive plate and a conductive leading-out part, the conductive plate, the insulating part and the connecting cover plate are sequentially connected, the conductive plate is used for being arranged outside the shell, the conductive leading-out part is connected to the periphery of the conductive plate, and the conductive leading-out part is used for protruding out of the outer side of the shell. Therefore, the manufacturing process of the button cell is simplified, and the manufacturing efficiency of the button cell is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of button batteries, and in particular to a cover plate structure and a button battery. Background Art

[0002] After the button battery is sealed, it needs to be packed, that is, the leads are connected to the positive and negative poles of the button battery so that the button battery can be used for testing or installation.

[0003] In the related art, document number CN211404657U discloses a button-type polymer battery, which includes a battery body, a battery body tab at the upper end of the battery body, and a lead wire welded to the battery body tab by resistance welding. Since the lead wire diameter of the button-type battery is small, the temperature during welding is high, which can easily cause the lead wire to be over-welded; when the lead battery uses tinned metal wire, the resistance welding process can easily produce cold welding, resulting in low lead connection strength.

[0004] To solve the above problems, document No. CN219144441U discloses a button battery with soldered leads. During the preparation process, the wires are soldered to a metal sheet, and then the metal sheet is welded to the battery body. This can not only ensure a stable connection between the wires and the battery body, but also reduce abnormalities such as cold soldering and over-soldering of the wires, thereby reducing the welding defect rate.

[0005] However, the above technical solutions all require the positive electrode lead and the negative electrode lead to be welded to the button battery respectively, which makes the manufacturing process of the button battery more complicated and is not conducive to improving the manufacturing efficiency of the button battery. Utility Model Content

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a cover plate structure and a button battery that simplify the manufacturing process of button batteries.

[0007] The purpose of this disclosure is achieved through the following technical solutions:

[0008] A cover plate structure, comprising a cover assembly, an insulating member and a conductive member, wherein the cover assembly is an integrally formed structure, the cover assembly comprises a connecting cover plate and a cover plate lead-out portion, the connecting cover plate is formed with a position avoidance hole, the peripheral edge of the connecting cover plate is used to be connected to the opening of a shell, the cover plate lead-out portion is connected to the peripheral edge of the connecting cover plate, and the cover plate lead-out portion is used to protrude from the outside of the shell;

[0009] The conductive part is an integrally formed structure, and the conductive part also includes a conductive plate and a conductive lead-out portion. The conductive plate, the insulating part and the connecting cover plate are connected in sequence. The conductive plate is used to be arranged on the outside of the shell, and the conductive lead-out portion is connected to the periphery of the conductive plate. The conductive lead-out portion is used to protrude on the outside of the shell.

[0010] In one of the embodiments, the cover plate lead-out portion is parallel to the connecting cover plate.

[0011] In one embodiment, the conductive lead portion is parallel to the conductive plate.

[0012] In one embodiment, the covering member is a stamping structure.

[0013] In one embodiment, the conductive member is a stamped structure.

[0014] In one embodiment, the cover lead-out portion is rectangular, and the conductive lead-out portion is rectangular.

[0015] In one of the embodiments, the conductive member further includes a connecting column, the connecting column is connected to one side of the conductive plate, and the connecting column is passed through the avoidance hole.

[0016] In one embodiment, the insulating member includes an insulating layer and an insulating portion, the connecting cover plate, the insulating layer and the conductive plate are connected in sequence, and the connecting column, the insulating portion and the inner wall of the avoidance hole are connected in sequence.

[0017] In one of the embodiments, the insulating portion is connected to one end of the insulating layer, the insulating portion and the insulating layer together form an insulating groove, and the connecting cover plate is embedded in the insulating groove.

[0018] A button battery comprises the cover plate structure described in any one of the above embodiments.

[0019] Compared with the prior art, the present invention has at least the following advantages:

[0020] Since the periphery of the connecting cover is connected to the opening of the shell, and the cover lead-out portion is connected to the periphery of the connecting cover, the first pole ear, the shell, the connecting cover and the cover lead-out portion are electrically connected in sequence; and since the cover lead-out portion is used to protrude from the outside of the shell, the second pole ear can be electrically connected to the outside through the cover lead-out portion. Since the conductive plate is used to electrically connect to the second pole ear of the winding core, the conductive lead-out portion is connected to the periphery of the conductive plate, so that the second pole ear, the conductive plate and the conductive lead-out portion are electrically connected in sequence; and since the conductive lead-out portion is used to protrude from the outside of the shell, the second pole ear can be electrically connected to the outside through the conductive lead-out portion. In this way, after the button battery is packaged, that is, after the cover structure is installed on the shell, both the first pole ear and the second pole ear can be directly electrically connected to the outside, so that the button battery can be directly used for testing or installation. Since the button battery can be directly used for testing or installation after packaging, the process of welding leads is omitted, and the connecting cover plate and the conductive plate are both integrally formed structures, that is, there is no additional process for connecting the cover plate and the conductive plate. Therefore, the present invention simplifies the manufacturing process of the button battery and improves the manufacturing efficiency of the button battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic structural diagram of a button battery according to an embodiment;

[0023] Figure 2 for Figure 1 A schematic structural diagram of a cover assembly of a button battery shown;

[0024] Figure 3 for Figure 1 Schematic diagram of the structure of the conductive part of the button battery shown.

[0025] Figure numerals: button battery 10; shell 100; receiving groove 101; winding core 200; first pole ear 210; second pole ear 220; cover structure 300; cover part 310; connecting cover 311; avoidance hole 3111; cover lead part 312; insulating part 320; insulating layer 321; insulating part 322; insulating groove 3201; conductive part 330; conductive plate 331; conductive lead part 332; connecting column 333. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0030] like Figure 1 As shown, a button battery 10 of an embodiment includes a housing 100, a winding core 200 and a cover plate structure 300. The housing 100 is provided with a receiving groove 101, and the winding core 200 is disposed in the receiving groove 101. Both ends of the winding core 200 are provided with a pole ear, which are a first pole ear 210 and a second pole ear 220. The first pole ear 210 is connected to the housing 100. The cover plate structure 300 is connected to the opening of the housing 100 so that the cover plate structure 300 covers the housing 100, and the second pole ear 220 is connected to the cover plate structure 300.

[0031] like Figures 1 to 3As shown, in one embodiment, the cover structure 300 includes a cover member 310, an insulating member 320 and a conductive member 330. The cover member 310 is an integrally formed structure. The cover member 310 includes a connecting cover 311 and a cover lead-out portion 312. The connecting cover 311 is formed with an avoidance hole 3111. The periphery of the connecting cover 311 is used to be connected to the opening of the shell 100. The cover lead-out portion 312 is connected to the periphery of the connecting cover 311. The cover lead-out portion 312 is used to protrude from the outside of the shell 100. The conductive member 330 is an integrally formed structure, and the conductive member 330 further includes a conductive plate 331 and a conductive lead portion 332. The conductive plate 331, the insulating member 320 and the connecting cover plate 311 are connected in sequence. The conductive plate 331 is used to be arranged outside the housing 100, and the conductive lead portion 332 is connected to the periphery of the conductive plate 331. The conductive lead portion 332 is used to protrude outside the housing 100. In this embodiment, the conductive plate 331 is used to be electrically connected to the second pole ear 220 of the winding core 200, and the periphery of the connecting cover plate 311 is electrically connected to the opening of the housing 100.

[0032] It can be understood that when the first pole tab 210 is a positive pole, the second pole tab 220 is a negative pole tab; when the second pole tab 220 is a positive pole, the first pole tab 210 is a negative pole tab.

[0033] In the above-mentioned cover plate structure 300, since the periphery of the connecting cover plate 311 is connected to the opening of the shell 100, and the cover plate lead-out portion 312 is connected to the periphery of the connecting cover plate 311, the first pole tab 210, the shell 100, the connecting cover plate 311 and the cover plate lead-out portion 312 are electrically connected in sequence; and since the cover plate lead-out portion 312 is used to protrude from the outside of the shell 100, the second pole tab 220 can be electrically connected to the outside through the cover plate lead-out portion 312. Since the conductive plate 331 is used to electrically connect to the second pole tab 220 of the winding core 200, the conductive lead-out portion 332 is connected to the periphery of the conductive plate 331, so that the second pole tab 220, the conductive plate 331 and the conductive lead-out portion 332 are electrically connected in sequence; and since the conductive lead-out portion 332 is used to protrude from the outside of the shell 100, the second pole tab 220 can be electrically connected to the outside through the conductive lead-out portion 332. In this way, after the button battery 10 is packaged, that is, after the cover plate structure 300 is installed on the housing 100, the first pole ear 210 and the second pole ear 220 can be directly electrically connected to the outside, so that the button battery 10 can be directly used for testing or installation. Since the button battery 10 can be directly used for testing or installation after packaging, the process of welding leads is omitted, and the connecting cover plate 311 and the conductive plate 331 are both integrally formed structures, that is, the connecting cover plate 311 and the conductive plate 331 do not increase the process, so the present disclosure simplifies the manufacturing process of the button battery 10 and improves the manufacturing efficiency of the button battery 10.

[0034] like Figure 1 and Figure 2 As shown, in one embodiment, the cover lead-out portion 312 is parallel to the connection cover 311, which improves the convenience of electrical connection between the cover lead-out portion 312 and the outside. In another embodiment, there is an angle between the cover lead-out portion 312 and the connection cover 311. Further, the angle between the cover lead-out portion 312 and the connection cover 311 is 30°. It can be understood that those skilled in the art can adjust the angle between the cover lead-out portion 312 and the connection cover 311 according to actual conditions.

[0035] like Figure 1 and Figure 3 As shown, in one embodiment, the conductive lead portion 332 is parallel to the conductive plate 331, which improves the convenience of the conductive lead portion 332 being electrically connected to the outside. In another embodiment, there is an angle between the conductive lead portion 332 and the conductive plate 331. Further, the angle between the conductive lead portion 332 and the conductive plate 331 is 30°. It can be understood that those skilled in the art can adjust the angle between the conductive lead portion 332 and the conductive plate 331 according to actual conditions.

[0036] like Figure 2 As shown, in one embodiment, the cover member 310 is a stamping structure to improve the manufacturing efficiency of the cover member 310.

[0037] like Figure 3 As shown, in one embodiment, the conductive member 330 is a stamping structure to improve the manufacturing efficiency of the conductive member 330 .

[0038] like Figure 2 Shown and Figure 3 As shown, in one embodiment, the cover lead-out portion 312 is rectangular, and the electrical lead-out portion 332 is rectangular. In another embodiment, the cover lead-out portion 312 is square, triangular, or other existing shapes. The electrical lead-out portion 332 is square, triangular, or other existing shapes. It is understood that those skilled in the art can adjust the shape of the cover lead-out portion 312 and the shape of the conductive lead-out portion 332 according to actual needs.

[0039] like Figure 1 As shown, in one embodiment, the conductive member 330 further includes a connecting column 333, which is connected to one side of the conductive plate 331, and the connecting column 333 is passed through the avoidance hole 3111, and the connecting column 333 is used to electrically connect to the second pole ear 220 of the winding core 200, so that the second pole ear 220 is electrically connected to the conductive plate 331 through the connecting column 333.

[0040] like Figure 1As shown, in one embodiment, the insulating member 320 includes an insulating layer 321 and an insulating portion 322, the connecting cover plate 311, the insulating layer 321 and the conductive plate 331 are connected in sequence, and the connecting column 333, the insulating portion 322 and the inner wall of the avoidance hole 3111 are connected in sequence. In this embodiment, the insulating layer 321 isolates the connecting cover plate 311 from the conductive plate 331 to avoid electrical connection between the connecting cover plate 311 and the conductive plate 331; the insulating portion 322 isolates the connecting column 333 from the connecting cover plate 311 to avoid electrical connection between the connecting column 333 and the connecting cover plate 311. In this way, the insulating member 320 completely isolates the connecting cover plate 311 from the conductive plate 331, avoiding the problem of electrical connection between the connecting cover plate 311 and the conductive plate 331.

[0041] like Figure 1 As shown, in one embodiment, the insulating portion 322 is connected to one end of the insulating layer 321, and the insulating portion 322 and the insulating layer 321 together form an insulating groove 3201, and the connecting cover plate 311 is embedded in the insulating groove 3201, so that the inner wall of the insulating groove 3201 covers the connecting cover plate 311, thereby improving the insulation effect of the insulating member 320.

[0042] Compared with the prior art, the present invention has at least the following advantages:

[0043] Since the periphery of the connecting cover 311 is connected to the opening of the shell 100, and the cover lead-out portion 312 is connected to the periphery of the connecting cover 311, the first pole tab 210, the shell 100, the connecting cover 311 and the cover lead-out portion 312 are electrically connected in sequence; and since the cover lead-out portion 312 is used to protrude from the outside of the shell 100, the second pole tab 220 can be electrically connected to the outside through the cover lead-out portion 312. Since the conductive plate 331 is used to electrically connect to the second pole tab 220 of the winding core 200, the conductive lead-out portion 332 is connected to the periphery of the conductive plate 331, so that the second pole tab 220, the conductive plate 331 and the conductive lead-out portion 332 are electrically connected in sequence; and since the conductive lead-out portion 332 is used to protrude from the outside of the shell 100, the second pole tab 220 can be electrically connected to the outside through the conductive lead-out portion 332. In this way, after the button battery 10 is packaged, that is, after the cover plate structure 300 is installed on the housing 100, the first pole ear 210 and the second pole ear 220 can be directly electrically connected to the outside, so that the button battery 10 can be directly used for testing or installation. Since the button battery 10 can be directly used for testing or installation after packaging, the process of welding leads is omitted, and the connecting cover plate 311 and the conductive plate 331 are both integrally formed structures, that is, the connecting cover plate 311 and the conductive plate 331 do not increase the process, so the present disclosure simplifies the manufacturing process of the button battery 10 and improves the manufacturing efficiency of the button battery 10.

[0044] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the disclosed 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 disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the disclosed patent shall be subject to the attached claims.

Claims

1. A cover plate structure, comprising a cover member, an insulating member and a conductive member, characterized in that: The cover assembly is an integrally formed structure, and includes a connecting cover plate and a cover plate lead-out portion, the connecting cover plate is formed with a position avoidance hole, the peripheral edge of the connecting cover plate is used to be connected to the opening of the shell, the cover plate lead-out portion is connected to the peripheral edge of the connecting cover plate, and the cover plate lead-out portion is used to protrude from the outside of the shell; The conductive part is an integrally formed structure, and the conductive part also includes a conductive plate and a conductive lead-out portion. The conductive plate, the insulating part and the connecting cover plate are connected in sequence. The conductive plate is used to be arranged on the outside of the shell, and the conductive lead-out portion is connected to the periphery of the conductive plate. The conductive lead-out portion is used to protrude on the outside of the shell.

2. The cover plate structure according to claim 1, characterized in that: The cover plate lead-out portion is parallel to the connecting cover plate.

3. The cover plate structure according to claim 1, characterized in that: The conductive lead-out portion is parallel to the conductive plate.

4. The cover plate structure according to claim 1, characterized in that: The covering member is a stamping structure.

5. The cover plate structure according to claim 1, characterized in that: The conductive member is a stamping structure.

6. The cover plate structure according to claim 1, characterized in that: The cover lead-out portion is rectangular, and the conductive lead-out portion is rectangular.

7. The cover plate structure according to claim 1, characterized in that: The conductive member further comprises a connecting column, wherein the connecting column is connected to one side of the conductive plate and the connecting column is passed through the avoiding hole.

8. The cover plate structure according to claim 7, characterized in that: The insulating member includes an insulating layer and an insulating portion, the connecting cover plate, the insulating layer and the conductive plate are connected in sequence, and the connecting column, the insulating portion and the inner wall of the avoidance hole are connected in sequence.

9. The cover plate structure according to claim 8, characterized in that: The insulating portion is connected to one end of the insulating layer, the insulating portion and the insulating layer together form an insulating groove, and the connecting cover plate is embedded in the insulating groove.

10. A button battery, characterized in that: The invention comprises the cover plate structure according to any one of claims 1 to 9.

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