Sinking plate double-shell fixed type-C connector

Abstract

The utility model discloses a sinking plate double-shell fixed type-C connector. The sinking plate double-shell fixed type-C connector comprises an insulating body, a terminal group, a clamping hook piece and a shielding shell, the insulating body comprises a base and a tongue plate which integrally extends forwards from the base; the terminal group and the clamping hook piece are arranged on the insulating body, each contact part of the terminal group is respectively exposed out of the two surfaces of the tongue plate, and each welding part of the terminal group extends out of the base; the shielding shell is coated outside the insulating body; the shielding shell comprises an inner shell body and an outer shell body. The riveting hole is formed in the top of the inner shell, the riveting column extends out of the outer shell, and the riveting column is inserted into the riveting hole to be riveted and fixed and is matched with the outer shell to be welded and fixed with the inner shell, so that the connection strength between the outer shell and the inner shell is effectively enhanced, the outer shell and the inner shell are not easy to separate, and the service life of the outer shell is prolonged. And long-term normal use of the product is ensured, and convenience is brought to use.

Description

Technical Field

[0001] This utility model relates to the field of electrical connectors, and in particular to a recessed double-shell fixed Type-C connector. Background Technology

[0002] Type-C is a USB interface standard that is smaller than both Type-A and Type-B. It can be used in both PCs (host devices) and external devices (slave devices, such as mobile phones). USB Type-C has 4 pairs of TX / RX pins, 2 pairs of USB D+ / D- pins, 1 pair of SBU pins, 2 CC pins, 4 VBUS pins, and 4 ground pins.

[0003] The current Type-C connector mainly consists of an insulating body, a terminal group, and a shielding shell. The insulating body includes a base and a tongue plate integrally extending forward from the base. The terminal group is disposed on the insulating body and has multiple contact portions and multiple solder portions. The multiple contact portions are exposed on the upper and lower surfaces of the tongue plate, and the multiple solder portions extend out of the base. The shielding shell covers the insulating body.

[0004] In existing technologies, to improve the structural strength of the shielding shell of a Type-C connector, it is typically composed of an inner shell and an outer shell, with the outer shell fitting over the inner shell and secured by welding. However, the connection between the outer shell and the inner shell, secured only by welding, is relatively weak, making it easy for the outer shell and inner shell to detach, adversely affecting the normal use of the product. Therefore, it is necessary to improve the current Type-C connector. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology, and its main objective is to provide a recessed double-shell fixed Type-C connector, which can effectively solve the problem of weak connection strength between the outer shell and the inner shell of the existing Type-C connector.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A recessed double-shell fixed Type-C connector includes an insulating body, a terminal group, a latch, and a shielding shell. The insulating body includes a base and a tongue plate integrally extending forward from the base. The terminal group and the latch are both disposed on the insulating body. Each contact portion of the terminal group is exposed on both surfaces of the tongue plate, and each solder portion of the terminal group extends out of the base. The shielding shell covers the insulating body. The shielding shell includes an inner shell and an outer shell. The inner shell covers the insulating body, and a riveting hole is provided at the top of the inner shell. The left and right rear sides of the inner shell are bent outward to extend rear fixing feet for recessed mounting. The outer shell is stacked on top of the inner shell and welded to form solder joints. Riveting posts extend from the outer shell and are inserted into the riveting holes for riveting fixation. The left and right front sides of the outer shell are bent outward to extend front fixing feet for recessed mounting.

[0008] As a preferred embodiment, the riveting holes are two symmetrically arranged on the left and right, and correspondingly, the riveting posts are two symmetrically arranged on the left and right, with the two riveting posts respectively inserted into the two riveting holes for riveting and fixing.

[0009] As a preferred embodiment, the rivet hole penetrates the inner and outer surfaces of the inner housing, and the rivet post is formed on the outer housing by being concave on the outside and convex on the inside.

[0010] As a preferred embodiment, the inner housing has an outer concave and inner convex shape, and a protrusion is formed on the inner wall of the inner housing to increase the insertion and extraction force.

[0011] As a preferred embodiment, the base has limiting grooves on its front bottom and top sides. Correspondingly, the inner shell has limiting portions punched inward on its rear bottom and top sides. These limiting portions are engaged in the limiting grooves from front to back to prevent the inner shell from moving backward relative to the insulating body.

[0012] As a preferred embodiment, the top of the base is recessed with a buckle groove, and correspondingly, the rear top of the inner shell is punched inward to form a buckle piece, which engages with the buckle groove to lock in place, thereby preventing the inner shell from moving forward relative to the insulating body.

[0013] As a preferred embodiment, the solder joints of the terminal group are arranged in a row and extend horizontally backward from the rear end face of the base. The height of each solder joint of the terminal group is higher than the bottom surface of the base, so as to achieve a recessed mounting on an external circuit board.

[0014] As a preferred embodiment, both the inner shell and the outer shell are stamped iron shells, which have a simple structure, are easy to manufacture, and have low cost.

[0015] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0016] By providing a riveting hole at the top of the inner shell and extending a riveting post from the outer shell, the riveting post is inserted into the riveting hole for riveting and fixing, and is also welded to the inner shell for fixing. This effectively enhances the connection strength between the outer shell and the inner shell, making it less likely for the outer shell and the inner shell to separate, ensuring the long-term normal use of the product and bringing convenience to users.

[0017] 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

[0018] Figure 1 This is a three-dimensional assembly diagram of a preferred embodiment of the present invention;

[0019] Figure 2 This is a three-dimensional assembly schematic diagram of a preferred embodiment of the present invention from another angle;

[0020] Figure 3 This is an exploded view of a preferred embodiment of the present invention;

[0021] Figure 4 This is an exploded view from another angle of a preferred embodiment of the present invention;

[0022] Figure 5 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. Insulating body 11. Base

[0025] 12. Tongue plate 101, limiting groove

[0026] 102, 20, Terminal assembly

[0027] 21. Contact part; 22. Welding part

[0028] 30. Hook and clip; 40. Shielding shell

[0029] 41. Inner shell 411. Riveting hole

[0030] 412. Rear fixing foot; 413. Protrusion.

[0031] 414. Limiting part; 415. Fastener piece

[0032] 42. Outer shell 421. Riveting post

[0033] 422, front fixing foot 401, solder joint. Detailed Implementation

[0034] Please refer to Figures 1 to 5As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including an insulating body 10, a terminal group 20, a snap hook 30, and a shielding shell 40.

[0035] The insulating body 10 includes a base 11 and a tongue plate 12 integrally extending forward from the base 11. In this embodiment, the insulating body 10 is made entirely of plastic. The base 11 has limiting grooves 101 on its front bottom and top sides, and there are two limiting grooves 101 arranged left and right. Additionally, the top of the base 11 has a recessed fastening groove 102 located behind the limiting grooves 101. There are two fastening grooves 102 arranged left and right, and both fastening grooves 102 are square in structure.

[0036] Both the terminal group 20 and the latch 30 are disposed on the insulating body 10. Each contact portion 21 of the terminal group 20 is exposed on both surfaces of the tongue plate 12, and each solder portion 22 of the terminal group 20 extends out of the base 11. In this embodiment, the solder portions 22 of the terminal group 20 are arranged in a row and extend horizontally backward from the rear end face of the base 11. The height of each solder portion 22 of the terminal group 20 is higher than the bottom surface of the base 11, so as to achieve a recessed mounting on an external circuit board.

[0037] The shielding shell 40 covers the insulating body 10, and the front end of the tongue plate 12 extends forward from the shielding shell 40. The shielding shell 40 includes an inner shell 41 and an outer shell 42. The inner shell 41 covers the insulating body 10, and a riveting hole 411 is provided on the top of the inner shell 41. The rear ends of the inner shell 41 are bent outward on both the left and right sides to extend outward and have rear fixing feet 412 for recessed plate installation. The rear fixing feet 412 are inverted L-shaped so as to be inserted into the fixing holes on the external circuit board and welded to fix them. The outer shell 42 is stacked on the top of the inner shell 41 and welded to form a solder joint 401. A riveting post 421 extends from the outer shell 42 and is inserted into the riveting hole 411 for riveting and fixing. The front ends of the outer shell 42 are bent outward on both the left and right sides to extend outward and have front fixing feet 422 for recessed plate installation. The front fixing feet 422 are inverted L-shaped so as to be inserted into the fixing holes on the external circuit board and welded to fix them. In this embodiment, both the inner housing 41 and the outer housing 42 are stamped iron shells, which are simple in structure, easy to manufacture, and low in cost. Two rivet holes 411 are symmetrically arranged on the left and right, and correspondingly, two rivet posts 421 are also symmetrically arranged on the left and right. The two rivet posts 421 are respectively inserted into the two rivet holes 411 for riveting and fixing, making the connection between the outer housing 42 and the inner housing 41 more secure and reliable. Furthermore, the rivet holes 411 penetrate the inner and outer surfaces of the inner housing 41, and the rivet posts 421 are formed on the outer housing 42 with an outer concave and inner convex shape, resulting in a simple structure and easy manufacturing. Also, the rivet holes 411 are circular holes, and correspondingly, the rivet posts 421 are cylindrical. In addition, the inner housing 41 has an outer concave and inner convex shape, and a protrusion 413 is formed on the inner wall of the inner housing 41 to increase the insertion and extraction force, making the connector insertion and extraction more stable and providing a good feel. The protrusion 413 is circular, and two protrusions 413 are symmetrically arranged on the left and right. Furthermore, the rear bottom and top of the inner housing 41 are punched inward to form limiting portions 414, which are engaged in the limiting groove 101 from front to back to prevent the inner housing 41 from moving backward relative to the insulating body 10. The rear top of the inner housing 41 is punched inward to form a fastening piece 415, which engages with the fastening groove 102 to lock in place and prevent the inner housing 41 from moving forward relative to the insulating body 10.

[0038] The manufacturing and assembly process of this embodiment is described in detail below:

[0039] During manufacturing, firstly, the terminal group 20, the hook piece 30, the inner shell 41 and the outer shell 42 are stamped and formed. The outer shell 42 and the inner shell 41 are then stacked, welded and riveted together to shield the outer shell 40. Next, the terminal group 20 and the hook piece 30 are combined together and placed into an injection mold to injection mold the insulating body 10. Finally, the shielding outer shell 40 is fitted and fixed to the outside of the insulating body 10.

[0040] The key design feature of this invention is that by providing a riveting hole at the top of the inner shell and extending a riveting post from the outer shell, the riveting post is inserted into the riveting hole for riveting and fixing, and is also welded to the inner shell for fixing. This effectively enhances the connection strength between the outer shell and the inner shell, making it less likely for the outer shell and the inner shell to separate, ensuring long-term normal use of the product and bringing convenience to users.

[0041] 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 recessed double-shell fixed Type-C connector, comprising an insulating body, a terminal group, a latch, and a shielding shell; the insulating body includes a base and a tongue plate integrally extending forward from the base; the terminal group and the latch are both disposed on the insulating body, each contact portion of the terminal group is exposed on both surfaces of the tongue plate, and each solder portion of the terminal group extends beyond the base; the shielding shell covers the insulating body; characterized in that: The shielding shell includes an inner shell and an outer shell. The inner shell covers the insulating body and has a riveting hole at the top. The left and right rear sides of the inner shell are bent outwards and extend outwards to form rear fixing feet for mounting the recessed plate. The outer shell is stacked on top of the inner shell and welded to form weld points. Riveting posts extend from the outer shell and are inserted into the riveting holes for riveting and fixing. The left and right front sides of the outer shell are bent outwards and extend outwards to form front fixing feet for mounting the recessed plate.

2. The recessed double-shell fixed Type-C connector according to claim 1, characterized in that: The rivet holes are arranged symmetrically on the left and right. Correspondingly, the rivet posts are also arranged symmetrically on the left and right. The two rivet posts are inserted into the two rivet holes respectively for riveting and fixing.

3. The recessed double-shell fixed Type-C connector according to claim 1, characterized in that: The rivet hole penetrates the inner and outer surfaces of the inner shell, and the rivet post is formed on the outer shell with an outer concave and inner convex shape.

4. The recessed double-shell fixed Type-C connector according to claim 1, characterized in that: The inner shell has an outer concave and an inner convex shape, and a protrusion is formed on the inner wall of the inner shell to increase the insertion and extraction force.

5. The recessed double-shell fixed Type-C connector according to claim 1, characterized in that: The base has limiting grooves at its front bottom and top. Correspondingly, the inner shell has limiting parts punched inward at its rear bottom and top. These limiting parts are engaged in the limiting grooves from front to back.

6. The recessed double-shell fixed Type-C connector according to claim 1 or 5, characterized in that: The top of the base is recessed with a buckle groove, and correspondingly, the rear top of the inner shell is punched inward to form a buckle piece, which engages with the buckle groove to secure it.

7. The recessed double-shell fixed Type-C connector according to claim 1, characterized in that: The welded portions of the terminal group are arranged in a row and extend horizontally backward from the rear end face of the base, and the height of each welded portion of the terminal group is higher than the bottom surface of the base.

8. The recessed double-shell fixed Type-C connector according to claim 1, characterized in that: Both the inner shell and the outer shell are stamped iron shells.

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