Battery holder

Abstract

The utility model discloses a battery holder which comprises a base, a cover body, a positive plate and a negative plate, the base is provided with an accommodating cavity for mounting a button battery, and a positive pole mounting groove and a negative pole mounting groove are formed in the bottom of the accommodating cavity; the cover body is mounted on the base in a manner of opening or closing the accommodating cavity; the positive plate is arranged in the positive mounting groove; and the negative plate is arranged in the negative mounting groove. The fixing ribs are arranged on the peripheral side face of the cover body in an outward protruding mode, when the cover body closes the containing cavity, the fixing ribs make close contact with the inner wall face of the containing cavity, the acting force between the cover body and the base is improved, the cover body and the base are matched more firmly and reliably, the cover body is effectively prevented from falling off from the base, and the service life of the cover body is prolonged. The first through hole is formed in the positive electrode welding pin, the second through hole is formed in the negative electrode welding pin, and the first through hole and the second through hole are filled with tin liquid during tin soldering, so that the acting force between the tin ball and the positive electrode plate and the acting force between the tin ball and the negative electrode plate are greatly increased, and the welding between the battery holder and the PCB is firmer and more reliable.

Description

Technical Field

[0001] This utility model relates to the field of button batteries, and in particular to a battery holder. Background Technology

[0002] Button batteries, also known as coin cells, are batteries shaped like small buttons. They are generally larger in diameter and thinner. Button batteries are categorized by their shape; corresponding battery types include cylindrical, prismatic, and irregularly shaped batteries. Due to their small size, button batteries are widely used in various microelectronic products, typically as backup power for devices such as computer motherboards, electronic watches, electronic dictionaries, electronic scales, remote controls, electric toys, pacemakers, hearing aids, counters, and cameras. In use, button batteries are usually placed in a battery holder and then soldered onto a PCB board to provide power to modular clocks or other consumer electronics.

[0003] The current button battery holder's cover and base do not fit securely enough, making it easy for the cover to detach from the base. Furthermore, due to its small size, the solder balls do not exert sufficient force on the electrodes during soldering, resulting in an unstable and unreliable solder joint between the battery holder and the PCB. Therefore, it is necessary to improve the existing battery holder. Utility Model Content

[0004] In view of this, the present invention addresses the deficiencies of the existing technology and its main purpose is to provide a battery holder that can effectively solve the problems of the cover of the existing battery holder easily falling off the base and the battery holder not being firmly and reliably soldered to the PCB.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A battery holder includes a base, a cover, a positive electrode plate, and a negative electrode plate. The base has a cavity for mounting a button battery. The bottom of the cavity has a positive electrode mounting groove and a negative electrode mounting groove, located at the rear and front sides of the bottom of the cavity, respectively. The cover is mounted on the base, allowing the cavity to be opened or closed. A fixing rib protrudes outward from the peripheral side of the cover, and when the cover is closed, the fixing rib is in close contact with the inner wall of the cavity. The positive electrode plate is disposed in the positive electrode mounting groove and includes an integrally formed positive electrode contact portion and a positive electrode... The positive electrode has a welding foot, which is located in the positive electrode mounting groove and extends downward out of the base. The positive electrode welding foot has a first through hole located below the base and close to the positive electrode mounting groove. The negative electrode is disposed in the negative electrode mounting groove and includes an integrally formed and connected negative electrode elastic contact and a negative electrode welding foot. The negative electrode elastic contact is located in a receiving cavity and has an elastic groove. The negative electrode welding foot extends downward out of the base through the negative electrode mounting groove and has a second through hole located below the base and close to the negative electrode mounting groove.

[0007] As a preferred embodiment, the positive electrode sheet includes a positive electrode contact portion, a positive electrode body portion, and a positive electrode welding foot that are integrally formed and connected in sequence. The positive electrode contact portion and the positive electrode body portion form a U-shape, which makes the positive electrode sheet elastic.

[0008] As a preferred embodiment, the positive electrode contact portion extends forward to form a first limiting portion, and the upper side of the positive electrode body portion extends laterally to form a second limiting portion, which abuts against the outer surface of the base to effectively prevent excessive elastic recovery of the positive electrode sheet.

[0009] As a preferred embodiment, a limiting groove is provided on the rear side of the positive electrode mounting groove, and a third limiting part is protruding on the positive electrode body, which is located in the limiting groove and abuts against the inner wall surface of the limiting groove.

[0010] As a preferred embodiment, the negative electrode elastic contact portion is provided with three reinforcing ribs, two of which extend longitudinally and are located on both sides of the elastic groove, and the other reinforcing rib extends laterally and is located at the end of the negative electrode elastic contact portion. The opening of the elastic groove makes the negative electrode elastic contact portion more likely to undergo elastic deformation, and the design of the reinforcing ribs can effectively prevent the elastic contact portion from losing its elastic recovery ability due to long-term stress.

[0011] As a preferred embodiment, a fixing groove is provided at the bottom of the accommodating cavity, and the negative electrode has a fixing foot, which is inserted into the fixing groove for fixation, further making the assembly of the negative electrode and the base more secure and reliable.

[0012] As a preferred embodiment, the bottom of the accommodating cavity is provided with a storage groove for accommodating the negative electrode elastic contact portion, so that the button battery can be fully fitted and in contact with the bottom of the accommodating cavity.

[0013] As a preferred embodiment, the bottom of the accommodating cavity is provided with spring pieces, which are arranged in two sets with a gap between them, and each set of spring pieces consists of two spring pieces arranged with a gap between them.

[0014] As a preferred embodiment, the base has an opening groove extending from its peripheral side, which connects to the receiving cavity, and snap-fit ​​arms extending from both sides of the opening groove. Each of the two snap-fit ​​arms has a snap groove. The cover has two elastic arms extending from its surface, each of which has a buckle. The buckle engages with the snap groove to secure the cover. This design further makes the fit between the cover and the base more secure and reliable.

[0015] As a preferred embodiment, the lower end of the base extends downward with multiple positioning feet, which facilitates more precise assembly when soldering the battery holder to the PCB.

[0016] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0017] By providing outward-protruding fixing ribs on the periphery of the cover, when the cover closes the receiving cavity, the fixing ribs are in close contact with the inner wall of the receiving cavity, increasing the force between the cover and the base, making the fit between the cover and the base more secure and reliable, and effectively preventing the cover from falling off the base. Furthermore, by providing a first through hole on the positive electrode soldering foot and a second through hole on the negative electrode soldering foot, during soldering, the molten solder fills the first and second through holes, significantly increasing the force between the solder ball and the positive and negative electrode plates, making the soldering between the battery holder and the PCB more secure and reliable.

[0018] To more clearly illustrate the structural features and effects of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments: Attached Figure Description

[0019] Figure 1 This is a three-dimensional assembly diagram of a preferred embodiment of the present invention;

[0020] Figure 2 This is a three-dimensional assembly schematic diagram of a preferred embodiment of the present invention from another angle;

[0021] Figure 3 This is an exploded view of a preferred embodiment of the present invention;

[0022] Figure 4 This is a cross-sectional view of a preferred embodiment of the present invention.

[0023] Explanation of reference numerals in the attached diagram:

[0024] 10. Base; 11. Receiving cavity

[0025] 12. Positive electrode mounting slot 13. Negative electrode mounting slot

[0026] 14. Fixing slot; 15. Storage slot

[0027] 16. Spring clip 17. Opening groove

[0028] 18. Snap-on arm; 181. Snap-on slot

[0029] 19. Positioning feet 20. Cover

[0030] 21. Fixed rib 22. Flexible arm

[0031] 221, Button section 30, Positive electrode plate

[0032] 31. Positive electrode contact part; 32. Positive electrode welding foot

[0033] 321. First through hole; 33. Positive electrode body.

[0034] 331. Second limiting part; 332. Third limiting part

[0035] 40. Negative electrode sheet; 41. Negative electrode elastic contact portion

[0036] 411. Elastic groove; 412. Reinforcing rib

[0037] 42. Negative electrode welding pin; 421. Second through hole

[0038] 43. Fixed feet. Detailed Implementation

[0039] Please refer to Figures 1 to 4 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including a base 10, a cover 20, a positive electrode 30, and a negative electrode 40.

[0040] The base 10 has a receiving cavity 11 for mounting a button battery. The bottom of the receiving cavity 11 has a positive electrode mounting groove 12 and a negative electrode mounting groove 13, located at the rear and front sides of the bottom of the receiving cavity 11, respectively. In this embodiment, the bottom of the receiving cavity 11 has a fixing groove 14 and a receiving groove 15 for accommodating the negative electrode elastic contact portion 41, allowing the button battery to fully fit and contact the bottom of the receiving cavity 11. The bottom of the receiving cavity 11 has... The base 10 has two sets of spring contacts 16 arranged at intervals, with two spring contacts 16 in each set. Additionally, a limiting groove 121 is provided on the rear side of the positive electrode mounting groove 12. Furthermore, an opening groove 17 extends from the peripheral side of the base 10, which connects to the receiving cavity 11. Snap-fit ​​arms 18 extend from both sides of the opening groove 18, each with a snap-fit ​​groove 181. Multiple positioning feet 19 extend downward from the lower end of the base 10, facilitating more precise assembly when soldering the battery holder to the PCB.

[0041] The cover 20 is mounted on the base 10 to open or close the receiving cavity 11. A fixing rib 21 protrudes outward from the peripheral side of the cover 20. When the cover 20 closes the receiving cavity 11, the fixing rib 21 is in close contact with the inner wall of the receiving cavity 11. In this embodiment, two elastic arms 22 extend from the cover 20. Each elastic arm 22 has a buckle 221, which is engaged with the slot 191 for fastening. This design can further make the fit between the cover 20 and the base 10 more secure and reliable.

[0042] The positive electrode 30 is disposed in the positive electrode mounting groove 12. The positive electrode 30 includes an integrally formed positive electrode contact portion 31 and a positive electrode welding foot 32. The positive electrode contact portion 31 is located in the positive electrode mounting groove 12, and the positive electrode welding foot 32 extends downward from the base 10. A first through hole 321 is formed on the positive electrode welding foot 32, which is located below the base 10 and close to the positive electrode mounting groove 12. In this embodiment, the positive electrode 30 includes the positive electrode contact portion 31, the positive electrode body portion 33, and the positive electrode welding foot 32, which are integrally formed in sequence. 2. The positive electrode contact portion 31 and the positive electrode body portion 33 form a U-shape, making the positive electrode sheet 30 elastic; and the positive electrode contact portion 31 extends forward to form a first limiting portion 311, and the positive electrode body portion 33 extends laterally to form a second limiting portion 331. The second limiting portion 331 abuts against the outer surface of the base 10, effectively preventing the positive electrode sheet 30 from excessively recovering its elasticity; in addition, the positive electrode body portion 33 is provided with a third limiting portion 332 protruding on it. The third limiting portion 332 is located in the limiting groove 121 and abuts against the inner wall surface of the limiting groove 121.

[0043] The negative electrode 40 is disposed in the negative electrode mounting groove 13. The negative electrode 40 includes an integrally formed and connected negative electrode elastic contact portion 41 and a negative electrode welding foot 42. The negative electrode elastic contact portion 41 is located in the receiving cavity 11 and has an elastic groove 411. The negative electrode welding foot 42 extends downward through the negative electrode mounting groove 13 and extends downward through the base 10. The negative electrode welding foot 42 has a second through hole 421. The second through hole 421 is located below the base 10 and close to the negative electrode mounting groove 13. In this embodiment, the negative electrode elastic contact portion 41 is provided with three reinforcing ribs 412. Two of the reinforcing ribs 412 extend longitudinally and are located on both sides of the elastic groove 411, and the other reinforcing rib 412 extends laterally and is located at the end of the negative electrode elastic contact portion 41. The opening of the elastic groove 411 makes the negative electrode elastic contact portion 41 more prone to elastic deformation, and the design of the reinforcing ribs 412 can effectively prevent the elastic contact portion 41 from losing its elastic recovery ability due to long-term stress. In addition, the negative electrode sheet 40 has a fixing foot 43, which is inserted into the fixing groove 14 for fixation, further making the assembly of the negative electrode sheet 40 and the base 10 more secure and reliable.

[0044] The key design feature of this invention is that, by providing a fixing rib protruding outward on the periphery of the cover, when the cover closes the accommodating cavity, the fixing rib makes close contact with the inner wall of the accommodating cavity, increasing the force between the cover and the base, making the fit between the cover and the base more secure and reliable, and effectively preventing the cover from falling off the base. Furthermore, by providing a first through hole on the positive electrode soldering foot and a second through hole on the negative electrode soldering foot, during soldering, the molten solder fills the first and second through holes, significantly increasing the force between the solder ball and the positive and negative electrode plates, making the soldering between the battery holder and the PCB more secure and reliable.

[0045] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A battery holder, characterized in that: The device includes a base, a cover, a positive electrode plate, and a negative electrode plate. The base has a cavity for mounting a button battery. The bottom of the cavity has a positive electrode mounting slot and a negative electrode mounting slot, located at the rear and front sides of the bottom of the cavity, respectively. The cover is mounted on the base and can be opened or closed to accommodate the cavity. A fixing rib protrudes outward from the circumferential side of the cover. When the cover is closed, the fixing rib is in close contact with the inner wall of the cavity. The positive electrode plate is disposed in the positive electrode mounting slot and includes an integrally formed positive electrode contact portion and a positive electrode welding foot. The positive electrode contact is located in the positive electrode mounting groove. The positive electrode welding foot extends downward from the base. The positive electrode welding foot has a first through hole located below the base and close to the positive electrode mounting groove. The negative electrode plate is disposed in the negative electrode mounting groove. The negative electrode plate includes an integrally formed and connected negative electrode elastic contact and a negative electrode welding foot. The negative electrode elastic contact is located in the receiving cavity and has an elastic groove. The negative electrode welding foot extends downward from the base through the negative electrode mounting groove. The negative electrode welding foot has a second through hole located below the base and close to the negative electrode mounting groove.

2. The battery holder according to claim 1, characterized in that: The positive electrode sheet includes a positive electrode contact portion, a positive electrode body portion, and a positive electrode welding foot that are integrally formed and connected in sequence, with the positive electrode contact portion and the positive electrode body portion forming a U-shape.

3. The battery holder according to claim 2, characterized in that: The positive electrode contact portion extends forward to form a first limiting portion, and the positive electrode body portion extends laterally to form a second limiting portion, which abuts against the outer surface of the base.

4. The battery holder according to claim 2, characterized in that: A limiting groove is provided on the rear side of the positive electrode mounting groove, and a third limiting part is protruding on the positive electrode body. The third limiting part is located in the limiting groove and abuts against the inner wall surface of the limiting groove.

5. The battery holder according to claim 1, characterized in that: The negative electrode elastic contact portion is provided with three reinforcing ribs, two of which extend longitudinally and are located on both sides of the elastic groove, and the other reinforcing rib extends laterally and is located at the end of the negative electrode elastic contact portion.

6. The battery holder according to claim 1, characterized in that: The bottom of the accommodating cavity is provided with a fixing groove, and the negative electrode plate has a fixing foot, which is inserted into the fixing groove for fixation.

7. The battery holder according to claim 1, characterized in that: The bottom of the accommodating cavity is provided with a storage groove for accommodating the negative electrode elastic contact part.

8. The battery holder according to claim 1, characterized in that: The bottom of the accommodating cavity is provided with spring pieces, which are arranged in two sets with a gap between them, and each set of spring pieces consists of two spring pieces arranged with a gap between them.

9. The battery holder according to claim 1, characterized in that: An opening groove extends from the peripheral side of the base, which connects to the receiving cavity. Snap-fit ​​arms extend from both sides of the opening groove, each with a snap-fit ​​groove. Two elastic arms extend from the cover, each with a buckle that engages with the snap-fit ​​groove for secure fastening.

10. The battery holder according to claim 1, characterized in that: The lower end of the base extends downward with multiple positioning feet.

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