Connector with double rows of terminals

Abstract

The utility model discloses a connector with double rows of terminals. The connector comprises an insulating body, a first mounting seat, a second mounting seat, a first terminal group, a second terminal group and a shielding shell, the first mounting seats and the second mounting seats are arranged at intervals front and back; the first terminal group is embedded in the first mounting seat in a matching manner; the first terminal group is embedded in the first mounting seat, and the second terminal group is embedded in the second mounting seat, so that the first terminal group and the second terminal group are sequentially formed in the first mounting seat and the second mounting seat in an injection molding manner in the processing process; the flatness of the first welding parts of the different terminals in the first terminal group and the flatness of the second welding parts of the different terminals in the second terminal group are more convenient to control, so that the overall flatness is ensured to be qualified, the condition of poor contact between part of the terminals and an external circuit board is avoided, the overall yield is ensured, and the product quality is improved. And the existing processing and using requirements can be met.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and in particular to a connector with double rows of terminals. Background Technology

[0002] Connectors, also known as plugs or sockets, are generally electrical connectors. They are devices that connect two active devices to transmit current or signals. The male and female terminals, upon contact, can transmit information or current, hence the name connector. A connector typically consists of an insulating body and terminals on the insulating body. When a connector is plugged into an external device, the transmission of signals and current primarily occurs between these terminals.

[0003] The terminals of a connector need to be embedded in an insulating body and soldered to an external circuit board for electrical connection. Connectors with double-row terminals have a large number of internal terminals. However, in existing connectors, all terminals are injection molded into the insulating body together during the terminal assembly process. Therefore, the flatness of the contact area between each terminal and the external circuit board is difficult to control after molding. When the flatness difference is large, poor contact between some terminals and the external circuit board can easily occur. This results in a low yield rate for double-row terminal connectors, failing to meet current processing and usage requirements. Therefore, it is necessary to further improve the existing connector structure. Utility Model Content

[0004] In view of this, the present invention addresses the deficiencies of the existing technology, and its main objective is to provide a connector with double-row terminals, which can effectively solve the problems of low processing yield, easy contact failure, and inability to meet current processing and usage requirements of existing double-row terminal connectors.

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

[0006] A connector with dual-row terminals includes an insulating body, a first mounting base, a second mounting base, a first terminal group, a second terminal group, and a shielding shell. The insulating body has an inwardly recessed insertion cavity with a front opening at its front end. The first and second mounting bases are both disposed within the insulating body and are arranged at a distance from each other. The first terminal group is embedded in the first mounting base, with its front end extending forward from the first mounting base and forming a first contact portion, which extends inward into the insertion cavity. The rear end of the first terminal group extends downward from the first mounting base and is bent to form a first solder portion, which extends downward from the lower surface of the insulating body. The second terminal group is embedded in the second mounting base, with its front end extending forward from the second mounting base and forming a second contact portion, which extends inward into the insertion cavity and is arranged vertically at a distance from the first contact portion. The rear end of the second terminal group extends downward from the second mounting base and is bent to form a second solder portion, which extends downward from the lower surface of the insulating body and is arranged at a distance from the first solder portion. The shielding shell covers the outer surface of the insulating body.

[0007] As a preferred embodiment, the rear end of the insulating body is provided with a first mounting cavity and a second mounting cavity that communicate with the insertion cavity, and the first mounting seat and the second mounting seat are respectively installed in the corresponding first mounting cavity and the second mounting cavity.

[0008] As a preferred embodiment, the left and right side walls of the first mounting cavity are recessed inward and extended inward, with a first mounting groove extending forward and backward. The rear end of the first mounting groove is provided with a first limiting part. The left and right sides of the first mounting seat are provided with a first mounting part that mates with the first mounting groove. The rear end of the first mounting part is provided with a first fastening part that mates with the first limiting part.

[0009] As a preferred embodiment, the left and right side walls of the second mounting cavity are recessed inward and extended with a second mounting groove. A second limiting part is provided at the rear end of the second mounting groove. The left and right sides of the second mounting seat are provided with a second mounting part that cooperates with the second mounting groove. The rear end of the second mounting part is provided with a second buckle that cooperates with the second limiting part.

[0010] As a preferred embodiment, the insertion cavity is provided with a limiting groove that communicates with the insertion cavity. The limiting groove is arranged in two rows, with each row including multiple grooves arranged horizontally at intervals. The first contact portion of the first terminal group and the second contact portion of the second terminal group extend inward into the corresponding limiting groove.

[0011] As a preferred embodiment, the insulating body has a third buckle protruding outward on both the left and right sides, and the shielding shell has two buckle holes that cooperate with the third buckle.

[0012] As a preferred embodiment, the lower end of the insulating body integrally extends downward with positioning feet, and the positioning feet are two arranged laterally at intervals.

[0013] As a preferred embodiment, the front end of the shielding shell is integrally bent backward to form an elastic clamping part, which extends from front to back into the insertion cavity and fits against the inner wall of the insertion cavity.

[0014] As a preferred embodiment, the shielding shell has connecting feet extending downwards integrally from both sides, and the connecting feet are two pieces arranged horizontally at intervals.

[0015] As a preferred embodiment, the shielding shell has a baffle at the integrally bent rear end, which covers the rear end face of the insulating body.

[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 a first mounting base and a second mounting base, arranged at intervals, and with a first terminal group embedded in the first mounting base (the rear end of the first terminal group extending downwards from the first mounting base and bent to form a first welding part), and a second terminal group embedded in the second mounting base (the rear end of the second terminal group extending downwards from the second mounting base and bent to form a second welding part), the first and second terminal groups are sequentially injection molded into the first and second mounting bases during processing. This makes it easier to control the flatness of the first welding parts of different terminals in the first terminal group and the flatness of the second welding parts of different terminals in the second terminal group, thereby ensuring the overall flatness is qualified and avoiding poor contact between some terminals and the external circuit board. This ensures the overall yield rate and meets current processing and usage requirements.

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

[0019] Figure 1 This is a three-dimensional structural diagram of a preferred embodiment of the present utility model;

[0020] Figure 2 This is a three-dimensional structural schematic diagram of another preferred embodiment of the present utility model;

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

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

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

[0024] 10. Insulating body 101. Insertion cavity

[0025] 102. First mounting cavity; 103. Second mounting cavity

[0026] 104. First mounting slot; 105. Second mounting slot

[0027] 106. Limiting groove 11. First limiting part

[0028] 12. Second limiting part; 13. Third fastening part

[0029] 14. Positioning foot; 20. First mounting base

[0030] 21. First mounting part; 22. First fastening part

[0031] 30. Second mounting base; 31. Second mounting section

[0032] 32. Second buckle part; 40. First terminal group

[0033] 41. First contact portion; 42. First welding portion

[0034] 50. Second terminal group; 51. Second contact portion

[0035] 52. Second welding part; 60. Shielding shell

[0036] 601, Buckle hole 61, Clamping part

[0037] 62. Connecting foot 63. Baffle. Detailed Implementation

[0038] Please refer to Figures 1 to 4 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, which includes an insulating body 10, a first mounting base 20, a second mounting base 30, a first terminal group 40, a second terminal group 50, and a shielding shell 60.

[0039] The insulating body 10 has an inwardly recessed insertion cavity 101 with a front opening at its front end. In this embodiment, the rear end of the insulating body 10 has a first mounting cavity 102 and a second mounting cavity 103 communicating with the insertion cavity 101. The left and right side walls of the first mounting cavity 102 have inwardly recessed first mounting grooves 104 extending forward and backward, and the rear end of the first mounting grooves 104 is provided with a first limiting part 11. The left and right side walls of the second mounting cavity 103 have inwardly recessed second mounting grooves 105 extending forward and backward, and the rear end of the second mounting grooves 105 is provided with a second limiting part 12. The insertion cavity 101 has a limiting groove 106 communicating with the insertion cavity 101, wherein the limiting grooves 106 are arranged in two rows, each row including multiple horizontally spaced grooves. The left and right sides of the insulating body 10 have third fastening parts 13 protruding outward respectively. The lower end of the insulating body 10 has a positioning foot 14 extending downward integrally, and the positioning foot 14 is two horizontally spaced grooves. The positioning foot 14 is used for positioning when installing with an external circuit board, thereby making the soldering process between the first terminal group 40 and the second terminal group 50 and the external circuit board more convenient.

[0040] The first mounting base 20 and the second mounting base 30 are both disposed within the insulating body 10, and are arranged with a front-to-back interval. In this embodiment, the first mounting base 20 and the second mounting base 30 are respectively installed in the corresponding first mounting cavity 102 and second mounting cavity 103. The first mounting base 20 has a first mounting portion 21 protruding outward on its left and right sides to cooperate with the first mounting groove 104. The rear end of the first mounting portion 21 has a first fastening portion 22 protruding outward to cooperate with the first limiting portion 11. During installation, the first mounting base 20 is inserted into the first mounting cavity 102 from back to front along the first mounting groove 104 through the cooperation of the first mounting portion 21 and the first mounting groove 104, and the cooperation of the first limiting portion 11 and the first fastening portion 22 prevents the first mounting base 20 from falling off. The second mounting base 30 has a second mounting portion 31 protruding outward on its left and right sides to cooperate with the second mounting groove 105. The rear end of the second mounting portion 31 has a second fastening portion 32 protruding outward to cooperate with the second limiting portion 12. When installing the second mounting base 30, it can be inserted into the second mounting cavity 103 from back to front along the second mounting groove 105 by the cooperation of the second mounting part 31 and the second mounting groove 105, and the second mounting base 30 is prevented from falling off by the cooperation of the second limiting part 12 and the second fastening part 32.

[0041] The first terminal group 40 is embedded in the first mounting base 20. The front end of the first terminal group 40 extends forward out of the first mounting base 20 and forms a first contact portion 41. The first contact portion 41 extends inward into the insertion cavity 101. The rear end of the first terminal group 40 extends downward out of the first mounting base 20 and is bent to form a first welding portion 42. The first welding portion 42 extends downward out of the lower surface of the insulating body 10 and is used to weld and conduct with an external circuit board.

[0042] The second terminal group 50 is embedded in the second mounting base 30. The front end of the second terminal group 50 extends forward from the second mounting base 30 and forms a second contact portion 51. The second contact portion 51 extends inward into the insertion cavity 101 and is arranged vertically and vertically with the first contact portion 41. The rear end of the second terminal group 50 extends downward from the second mounting base 30 and is bent to form a second welding portion 52. The second welding portion 52 extends downward from the lower surface of the insulating body 10 and is arranged vertically and vertically with the first welding portion 42. In this embodiment, the first contact portion 41 in the first terminal group 40 and the second contact portion 51 in the second terminal group 50 respectively extend inward into the corresponding limiting groove 106. The limiting groove 106 further limits the position of the first contact portion 41 and the second contact portion 51, preventing lateral displacement during insertion with the outside and resulting in poor contact.

[0043] The shielding shell 60 covers the outer surface of the insulating body 10. The shielding shell 60 is used to shield external signals and prevent crosstalk from external signals to the first terminal group 40 and the second terminal group 50 during operation. In this embodiment, the shielding shell 60 has two latching holes 601 that mate with the third latching part 13. The shielding shell 60 is fastened to the insulating body 10 through the latching holes 601 and the third latching part 13. The front end of the shielding shell 60 is integrally bent backward to form an elastic clamping part 61. The clamping part 61 extends from front to back into the insertion cavity 101 and fits against the inner wall of the insertion cavity 101. The clamping part 61 is used to clamp the external connector when it is inserted, preventing the external connector from falling off and making the insertion process more stable. Simultaneously, the clamping part can also be connected to the grounding terminal in the external connector, thereby completing the grounding connection through the connection between the shielding shell 60 and the external circuit board. The shielding shell 60 has two connecting feet 62 extending downwards integrally from both sides. These connecting feet 62 are arranged horizontally at intervals and are used to connect to an external circuit board, thereby completing the grounding connection of the shielding shell 60. A baffle 63 is integrally bent at the rear end of the shielding shell 60. The baffle 63 covers the rear end face of the insulating body 10, making the shielding shell 60 provide more comprehensive protection for the insulating body 10.

[0044] The key design feature of this invention is that it includes a first mounting base and a second mounting base, arranged at intervals. A first terminal group is embedded in the first mounting base, with its rear end extending downwards and bent to form a first welding portion. A second terminal group is embedded in the second mounting base, with its rear end extending downwards and bent to form a second welding portion. This allows the first and second terminal groups to be sequentially injection molded into the first and second mounting bases during processing. This makes it easier to control the flatness of the first welding portions of different terminals in the first terminal group and the flatness of the second welding portions of different terminals in the second terminal group. This ensures overall flatness compliance, prevents poor contact between some terminals and the external circuit board, guarantees a high yield rate, and meets current processing and usage requirements.

[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 connector with double rows of terminals, characterized in that: The device includes an insulating body, a first mounting base, a second mounting base, a first terminal group, a second terminal group, and a shielding shell. The insulating body has an inwardly recessed insertion cavity with a front opening at its front end. Both the first and second mounting bases are disposed within the insulating body, and are arranged with a front-to-back gap. The first terminal group is embedded in the first mounting base, with its front end extending forward from the first mounting base and forming a first contact portion, which extends inward into the insertion cavity. The rear end of the first terminal group extends downward from the first mounting base and is bent to form a first welding portion, which extends downward from the lower surface of the insulating body. The second terminal group is embedded in the second mounting base, with its front end extending forward from the second mounting base and forming a second contact portion, which extends inward into the insertion cavity and is arranged vertically with the first contact portion. The rear end of the second terminal group extends downward from the second mounting base and is bent to form a second welding portion, which extends downward from the lower surface of the insulating body and is arranged with a front-to-back gap with the first welding portion. The shielding shell covers the outer surface of the insulating body.

2. The connector with double-row terminals according to claim 1, characterized in that: The rear end of the insulating body has a first mounting cavity and a second mounting cavity that communicate with the insertion cavity, and the first mounting seat and the second mounting seat are respectively installed in the corresponding first mounting cavity and second mounting cavity.

3. The connector with double-row terminals according to claim 2, characterized in that: The left and right sides of the first mounting cavity are recessed inward and extended with a first mounting groove. The rear end of the first mounting groove is provided with a first limiting part. The left and right sides of the first mounting seat are provided with a first mounting part that cooperates with the first mounting groove. The rear end of the first mounting part is provided with a first buckle that cooperates with the first limiting part.

4. The connector with double-row terminals according to claim 2, characterized in that: The left and right sides of the second mounting cavity are recessed inward and extended with a second mounting groove. The rear end of the second mounting groove is provided with a second limiting part. The left and right sides of the second mounting seat are provided with a second mounting part that cooperates with the second mounting groove. The rear end of the second mounting part is provided with a second buckle that cooperates with the second limiting part.

5. The connector with double-row terminals according to claim 1, characterized in that: The insertion cavity is provided with a limiting groove that connects to the insertion cavity. The limiting groove is arranged in two rows, with each row including multiple grooves arranged horizontally at intervals. The first contact part of the first terminal group and the second contact part of the second terminal group extend inward into the corresponding limiting groove.

6. The connector with double rows of terminals according to claim 1, characterized in that: The insulating body has a third buckle protruding outward on both the left and right sides, and the shielding shell has two buckle holes that cooperate with the third buckle.

7. The connector with double-row terminals according to claim 1, characterized in that: The lower end of the insulating body has a positioning foot extending downward integrally, and the positioning foot consists of two pieces arranged horizontally at intervals.

8. The connector with double-row terminals according to claim 1, characterized in that: The front end of the shielding shell is integrally bent backward to form an elastic clamping part, which extends from front to back into the insertion cavity and fits against the inner wall of the insertion cavity.

9. The connector with double rows of terminals according to claim 1, characterized in that: The shielding shell has connecting feet extending downwards on both sides, and the connecting feet are two pieces arranged horizontally at intervals.

10. The connector with double rows of terminals according to claim 1, characterized in that: The rear end of the shielding shell is integrally bent into an oil outlet baffle, which covers the rear end face of the insulating body.

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