Battery connector

Abstract

The utility model discloses a battery connector, which comprises an insulating body and a plurality of conductive terminals fixedly held on the insulating body, the insulating body is provided with a top wall and a bottom wall which are parallel to each other and two side walls which are connected to two transverse sides of the top wall and the bottom wall, and the top wall, the bottom wall and the two side walls jointly define a butt joint cavity. The bottom wall is provided with a through groove penetrating in the vertical direction, and the through groove is communicated with the butt joint cavity. The conductive terminal comprises a first terminal and a second terminal, and the first terminal is provided with a first holding part which is integrally formed at the longitudinal front part of the bottom wall and a first elastic arm which is inclined backwards from the first holding part and extends into the butt joint cavity. And the second terminal is provided with a second holding part integrally formed at the longitudinal rear part of the bottom wall, an extension part forwards extending into the through groove from the second holding part, and a second elastic arm which is bent backwards from the extension part and obliquely extends into the butt joint cavity. The conductive terminals and the insulating body are integrally formed through injection molding, so that the risks of loosening and poor contact of the conductive terminals are reduced.

Description

Technical Field

[0001] This utility model relates to the field of battery connector technology, and in particular to a battery connector with high structural reliability. Background Technology

[0002] Battery connectors are essential electrical connection components in electronic products, such as the battery connections in portable electronic devices like mobile phones and tablets. A battery connector typically consists of a female and a male connector joined together. The female connector, usually located on the electronic device, includes a plastic base and female conductive terminals encased within the plastic base. The male connector, inserted into the female connector, also includes a plastic base and male conductive terminals fixed within it. For battery connectors, the plastic base and conductive terminals are generally assembled together. This assembly method relies on manual operation and subsequent secondary processing, and the multi-step assembly process consumes more time, resulting in low precision, low efficiency, and high cost in the assembled battery connector. Furthermore, during use, wear and poor contact can occur between the plastic base and conductive terminals of the assembled battery connector, leading to poor reliability.

[0003] Therefore, it is hoped that a new battery connector can be proposed to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of this invention is to provide an integrally injection-molded battery connector with higher reliability.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a battery connector, comprising an insulating body and a plurality of conductive terminals fixed on the insulating body. The insulating body has a top wall and a bottom wall arranged parallel to each other, and two side walls connecting the top wall and the bottom wall on their lateral sides. The top wall, the bottom wall, and the two side walls together form a mating cavity opening towards the longitudinal front end. The bottom wall has a through groove extending vertically through the mating cavity. The conductive terminals include a first terminal located at the longitudinal front end of the through groove and a second terminal located at the longitudinal rear end of the through groove. The first terminal has a first holding portion integrally formed on the longitudinal front part of the bottom wall and a first elastic arm extending longitudinally backward from the first holding portion into the mating cavity. The second terminal has a second holding portion integrally formed on the longitudinal rear part of the bottom wall, an extension portion extending longitudinally forward from the second holding portion into the through groove, and a second elastic arm extending backward and upward from the longitudinal front end of the extension portion into the mating cavity.

[0006] In a preferred embodiment, the first terminal is provided with a first contact portion located at the free end of the first elastic arm, and the second terminal is provided with a second contact portion located at the free end of the second elastic arm, wherein the first contact portion and the second contact portion are at the same height.

[0007] In a preferred embodiment, the top wall is provided with a vertically penetrating slot that extends rearward through the longitudinal rear end face of the top wall, and the first contact portion and the second contact portion are exposed in the slot.

[0008] In a preferred embodiment, the slot is arranged in a stepped shape, the first elastic arm is located at the longitudinal front end of the slot, the second elastic arm is located at the longitudinal rear end of the slot, and the width of the longitudinal rear end of the slot is greater than the width of the longitudinal front end of the slot.

[0009] In a preferred embodiment, the bottom wall is provided with several positioning holes that extend vertically, the positioning holes are arranged horizontally and connected to the docking cavity, and the positioning holes are correspondingly provided with the second holding portions of the second terminals.

[0010] In a preferred embodiment, the first terminal has a first welding portion extending longitudinally forward from the first holding portion out of the insulating body, and the second terminal has a second welding portion extending longitudinally backward from the second holding portion out of the insulating body. The first welding portion and the second welding portion are located at the same height for welding to a circuit board.

[0011] In a preferred embodiment, the bottom wall has a front notch located at the longitudinal front end, and the first welded portion is received within the front notch and does not extend forward beyond the longitudinal front end face of the bottom wall.

[0012] In a preferred embodiment, the bottom wall has a rear end notch located at the longitudinal rear end, and the second weld portion is received within the rear end notch and does not extend rearward beyond the longitudinal rear end face of the bottom wall in the longitudinal direction.

[0013] In a preferred embodiment, the insulating body is provided with two positioning posts that protrude downward from the bottom surface of the bottom wall, and the two positioning posts are respectively located on the lateral sides of the positioning hole.

[0014] In a preferred embodiment, the insulating body has a guide opening located at the longitudinal front end, the guide opening gradually decreasing in size from the longitudinal front end of the insulating body to the rear, and the guide opening communicating with the docking cavity.

[0015] Compared with the prior art, the present invention has the following advantages: The conductive terminal includes a first terminal located at the longitudinal front end of the through groove and a second terminal located at the longitudinal rear end of the through groove. The first terminal has a first retaining portion integrally formed on the longitudinal front part of the bottom wall and a first elastic arm extending longitudinally backward from the first retaining portion into the mating cavity. The second terminal has a second retaining portion integrally formed on the longitudinal rear part of the bottom wall, an extension portion extending longitudinally forward from the second retaining portion into the through groove, and a second elastic arm extending backward from the longitudinal front end of the extension portion and extending upward into the mating cavity. The conductive terminal and the insulating body are integrally injection molded, avoiding later assembly and reducing the risk of loose conductive terminals and poor contact. Attached Figure Description

[0016] Figure 1 This is a front view of the battery connector in a preferred embodiment of the present invention.

[0017] Figure 2 yes Figure 1 The battery connector is shown in a bottom view.

[0018] Figure 3 yes Figure 2 An exploded view of the battery connector is shown.

[0019] Figure 4 yes Figure 1 The cross-sectional view of the battery connector shown.

[0020] Figure 5 yes Figure 1 A cross-sectional view of the battery connector from another angle. Detailed Implementation

[0021] Please see Figures 1 to 5 As shown, a preferred embodiment of the present invention discloses a battery connector 100, which includes an insulating body 10 and a plurality of conductive terminals 20 fixed on the insulating body 10. The insulating body 10 has a top wall 11 and a bottom wall 12 arranged parallel to each other, and two side walls 13 connected to the lateral sides of the top wall 11 and the bottom wall 12. The top wall 11, the bottom wall 12 and the two side walls 13 together form a mating cavity 10 1 that opens toward the longitudinal front end for insertion of the mating connector.

[0022] The insulating body 10 has a guide opening 102 located at its longitudinal front end. The guide opening 102 gradually decreases in size from the longitudinal front end face of the insulating body 10 and communicates with the mating cavity 101. The mating connector is inserted into the mating cavity 101 through the guide opening 102. The top wall 11 has a vertically penetrating slot 111 that extends rearward through the longitudinal rear end face of the top wall 11. The conductive terminal 20 is at least partially exposed within the slot 111.

[0023] The bottom wall 12 is provided with a vertically penetrating through groove 121, which communicates with the docking cavity 101. The conductive terminal 20 is at least partially exposed within the through groove 121. Several conductive terminals 20 include a first terminal 21 located at the longitudinal front end of the through groove 121 and a second terminal 22 located at the longitudinal rear end of the through groove 121. In this embodiment, the number of conductive terminals 20 is fifteen, wherein the number of first terminals 21 is seven and they are evenly arranged laterally at the longitudinal front of the bottom wall 12, and the number of second terminals 22 is eight and they are evenly arranged laterally at the longitudinal rear of the bottom wall 12. Simultaneously, combined with... Figure 1 As shown, the first terminal 21 and the second terminal 22 are spaced apart from each other in the lateral direction.

[0024] The first terminal 21 has a first retaining portion 211 integrally formed on the longitudinal front portion of the bottom wall 12, a first elastic arm 212 extending longitudinally backward from the first retaining portion 211 into the mating cavity 101, a first welding portion 213 extending longitudinally forward from the first retaining portion 211 out of the insulating body 10, and a first contact portion 214 located at the free end of the first elastic arm 212. The first retaining portion 211 is at least partially embedded in the bottom wall 12, which has a front notch 122 located at the longitudinal front end. The first welding portion 213 is received within the front notch 122 and does not extend longitudinally beyond the longitudinal front end face of the bottom wall 12.

[0025] The second terminal 22 is provided with a second holding portion 221 integrally formed on the longitudinal rear portion of the bottom wall 12, an extension portion 222 extending longitudinally forward from the second holding portion 221 into the through groove 121, a second elastic arm 223 extending backward and upward from the longitudinal front end of the extension portion 222 into the docking cavity 101, and a second welding portion 224 extending longitudinally backward from the second holding portion 221 out of the insulating body 10. The second holding portion 221 is at least partially embedded in the bottom wall 12. In this embodiment, the bottom wall 12 is provided with a plurality of vertically penetrating positioning holes 120, which are arranged laterally and communicate with the docking cavity 101. The positioning holes 120 are correspondingly provided with the second holding portions 221 of the second terminal 22 to accurately position the second terminal 22 during injection molding.

[0026] The second elastic arm 223 has a bent portion 225 that bends backward from the longitudinal front end of the extension portion 222, and a second contact portion 226 that extends backward and upward from the bent portion 225 into the docking cavity 101. That is, the second contact portion 226 is located at the free end of the second elastic arm 233. At the same time, the first contact portion 214 and the second contact portion 226 are located at the same height, and the first contact portion 214 and the second contact portion 226 are exposed in the slot 111. Specifically, the slot 111 is stepped, the first elastic arm 212 is located at the longitudinal front end of the slot 111, the second elastic arm 223 is located at the longitudinal rear end of the slot 111, and the width of the longitudinal rear end of the slot 111 is greater than the width of the longitudinal front end of the slot 111.

[0027] The bottom wall 12 has a rear end notch 123 located at the longitudinal rear end. The second welding part 224 is received within the rear end notch 123 and does not extend longitudinally beyond the longitudinal rear end face of the bottom wall 12. Meanwhile, the first welding part 213 and the second welding part 224 are located at the same height for welding to a circuit board. Furthermore, the insulating body 10 also has two positioning posts 14 protruding downwards from the bottom surface of the bottom wall 12. The two positioning posts 14 are located on opposite sides of the positioning hole 120 to better mount and fix the battery connector 100 to the circuit board.

[0028] The battery connector 100 is manufactured as follows: First, fifteen conductive terminals 20 are pre-placed in an injection mold, and the pins of the conductive terminals 20 are precisely positioned in the mold cavity to ensure pin spacing and positional accuracy. Then, molten plastic material is wrapped around the conductive terminals 20 through injection molding to form an insulating body 10. Finally, after cooling and solidification, the connector is demolded to form the final battery connector 100. The conductive terminals 20 and the insulating body 10 are integrally injection molded, ensuring precise positioning, insulation protection, and a compact structure of the fifteen conductive terminals 20. This is a key process to meet the full assembly and testing production schedule.

[0029] Meanwhile, the battery connector 100 is directly positioned in the injection mold during molding, and the conductive terminal 20 and the insulating body 10 are an integrated structure, eliminating the risk of loosening; thus, it has the advantages of high precision and high reliability. Furthermore, the injection molding of the conductive terminal 20 and the insulating body 10 is done in one step, saving some labor and assembly costs, making it more suitable for mass production; the cost is moderate and the production efficiency is high.

[0030] In this invention, the conductive terminal 20 includes a first terminal 21 located at the longitudinal front end of the through groove 121 and a second terminal 22 located at the longitudinal rear end of the through groove 121. The first terminal 21 has a first holding portion 211 integrally formed on the longitudinal front part of the bottom wall 12 and a first elastic arm 212 extending longitudinally backward from the first holding portion 211 into the mating cavity. The second terminal 22 has a second holding portion 221 integrally formed on the longitudinal rear part of the bottom wall 12, an extension portion 222 extending longitudinally forward from the second holding portion 221 into the through groove 121, and a second elastic arm 223 extending backward and upward from the longitudinal front end of the extension portion 222 into the mating cavity 101. The conductive terminal 20 and the insulating body 10 are integrally injection molded, avoiding later assembly and reducing the risk of loosening and poor contact of the conductive terminal 20.

[0031] In summary, the above are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Any simple equivalent changes and modifications made in accordance with the claims and description of the present utility model should still fall within the scope of the present utility model patent.

Claims

1. A battery connector, comprising an insulating body and a plurality of conductive terminals fixed on the insulating body, the insulating body having a top wall and a bottom wall arranged parallel to each other, and two side walls connecting the lateral sides of the top wall and the bottom wall, the top wall, the bottom wall and the two side walls together forming a mating cavity opening towards a longitudinal front end, the bottom wall having a through groove extending vertically through the mating cavity; characterized in that: The conductive terminal includes a first terminal located at the longitudinal front end of the through groove and a second terminal located at the longitudinal rear end of the through groove. The first terminal has a first retaining portion integrally formed on the longitudinal front part of the bottom wall and a first elastic arm extending longitudinally backward from the first retaining portion into the docking cavity. The second terminal has a second retaining portion integrally formed on the longitudinal rear part of the bottom wall, an extension portion extending longitudinally forward from the second retaining portion into the through groove, and a second elastic arm extending backward from the longitudinal front end of the extension portion and extending upward into the docking cavity.

2. The battery connector of claim 1, wherein: The first terminal is provided with a first contact portion located at the free end of the first elastic arm, and the second terminal is provided with a second contact portion located at the free end of the second elastic arm. The first contact portion and the second contact portion are located at the same height.

3. The battery connector of claim 2, wherein: The top wall has a vertically penetrating slot that extends rearward through the longitudinal rear end face of the top wall, and the first contact portion and the second contact portion are exposed in the slot.

4. The battery connector of claim 3, wherein: The slot is arranged in a stepped shape, with the first elastic arm located at the longitudinal front end of the slot and the second elastic arm located at the longitudinal rear end of the slot, and the width of the longitudinal rear end of the slot is greater than the width of the longitudinal front end of the slot.

5. The battery connector of claim 1, wherein: The bottom wall is provided with several positioning holes that extend vertically, and the positioning holes are arranged horizontally and connected to the docking cavity. The positioning holes are correspondingly provided with the second holding parts of the second terminals.

6. The battery connector of claim 5, wherein: The first terminal has a first welding portion extending longitudinally forward from the first holding portion out of the insulating body, and the second terminal has a second welding portion extending longitudinally backward from the second holding portion out of the insulating body. The first welding portion and the second welding portion are located at the same height for welding to a circuit board.

7. The battery connector of claim 6, wherein: The bottom wall has a front end notch located at the longitudinal front end, and the first welded part is received within the front end notch and does not extend forward beyond the longitudinal front end face of the bottom wall.

8. The battery connector of claim 6, wherein: The bottom wall has a rear end notch located at the longitudinal rear end, and the second welded part is received within the rear end notch and does not extend rearward beyond the longitudinal rear end face of the bottom wall in the longitudinal direction.

9. The battery connector of claim 5, wherein: The insulating body is provided with two positioning posts that protrude downward from the bottom surface of the bottom wall, and the two positioning posts are respectively located on the lateral sides of the positioning hole.

10. The battery connector of claim 1, wherein: The insulating body has a guide opening located at the longitudinal front end, the guide opening gradually decreases in size from the longitudinal front end of the insulating body to the rear, and the guide opening is connected to the docking cavity.

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