Improved electric connector structure

Abstract

The utility model discloses an improved electric connector structure, which comprises a metal shell and a terminal assembly, a shell accommodating cavity is formed in the metal shell, and the terminal assembly is embedded in the shell accommodating cavity; the terminal assembly comprises a main body plastic part and a terminal group, and the terminal group comprises a plurality of metal terminals; a plurality of shell positioning grooves which are arranged at intervals and are opened backwards are formed in the edge part of the rear end of the metal shell, positioning convex columns protruding outwards are arranged on the edge part of the rear end of the main body plastic part corresponding to the shell positioning grooves respectively, and the positioning convex columns are embedded into the corresponding shell positioning grooves respectively; the edge part of the rear end of the metal shell is also provided with a plurality of piercing riveting tongues, and the piercing riveting tongues are respectively riveted inwards and respectively block and limit the rear surface of the main plastic part. By means of the structural design, the connector has the advantages of being novel in structural design and small in height size, and meets the requirement for connector miniaturization development.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to an improved electrical connector structure. Background Technology

[0002] The Chinese utility model patent with patent number ZL202321311727.2 and patent name, entitled "A 6P Connector Female Head," specifically discloses the following technical solution: A 6P connector female head includes a shell and a main body. The main body is fixedly disposed within the shell and has several wiring terminals for connecting to a PCB board for data transmission. The main body includes a plastic part, one end of which is fixedly provided with a bottom block. A fixing groove is opened on one side of the bottom block, and the shell is connected to the fixing groove to prevent the shell from falling off during insertion and removal. The shell has symmetrically arranged concave blocks and an opening groove. A fixing block that bends inward into the shell is provided in the opening groove. The fixing block and the fixing groove cooperate to fix and connect the shell. The bottom block has symmetrically arranged grooves for mounting the shell, and the grooves cooperate with the concave blocks.

[0003] In the production and assembly process of the aforementioned 6P connector female head, the terminal block is first placed into the plastic mold, and after injection molding, a plastic part is formed. Then, the shell is prepared and the plastic part is inserted into the shell until the groove and the inner concave block cooperate to limit the installation of the plastic part. The main body is fixed by the cooperation of the fixing groove and the fixing block to prevent the shell from falling off.

[0004] It should be noted that the above-mentioned 6P connector female head still has the following defects: Specifically, the plastic part needs to be molded with a groove that matches the inner concave block of the shell and a fixing groove that matches the fixing block of the shell. The above-mentioned groove and fixing groove structure will increase the height of the entire plastic part (the size from front to back), thereby increasing the height of the entire connector, which does not meet the needs of connector miniaturization development. Utility Model Content

[0005] The purpose of this utility model is to provide an improved electrical connector structure to address the shortcomings of the existing technology. This improved electrical connector structure has a novel design, small height, and meets the needs of connector miniaturization.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution.

[0007] An improved electrical connector structure includes a metal housing and a terminal assembly. The metal housing has a housing cavity that extends completely from front to back, and the terminal assembly is embedded in the housing cavity of the metal housing.

[0008] The terminal assembly includes a main plastic part and a terminal group embedded in the main plastic part and injection molded into the main plastic part. The terminal group includes a number of spaced metal terminals.

[0009] The rear edge of the metal shell has several spaced-apart shell positioning grooves that open to the rear. The rear edge of the main plastic part has outwardly protruding positioning protrusions corresponding to each shell positioning groove. The positioning protrusions are integral with the main plastic part, and each positioning protrusion is embedded into the corresponding shell positioning groove.

[0010] The rear edge of the metal shell is also provided with several piercing rivets. The piercing rivets are an integral structure with the metal shell. Each piercing rivet is riveted inward and each piercing rivet blocks and limits the rear surface of the main plastic part.

[0011] The metal shell includes an upper side wall, a lower side wall, a left side wall, and a right side wall. The shell cavity is formed by the upper side wall, the lower side wall, the left side wall, and the right side wall, and the upper side wall, the lower side wall, the left side wall, and the right side wall are an integral structure.

[0012] Several of the aforementioned housing positioning grooves are formed at the rear end edges of the upper and lower side walls, and several of the aforementioned piercing rivet tongues are provided at the rear end edges of the left and right side walls.

[0013] The rear surface of the main plastic part is formed with clearance grooves corresponding to each of the piercing rivets, and each piercing rivet is pressed into the corresponding clearance groove.

[0014] Each of the metal terminals has a plug-in pin at its rear end.

[0015] Each of the metal terminals has a surface mount pin at its rear end.

[0016] The rear edge of the metal casing is provided with several rearwardly extending casing pins, and the casing pins and the metal casing are an integral structure.

[0017] The improved electrical connector is either a 16-pin or a 24-pin connector.

[0018] Compared to existing technologies, this invention offers the following advantages: Firstly, it uses a housing positioning groove to position the main plastic component and achieve front-side limiting; secondly, it uses a piercing rivet tongue to achieve rear-side limiting, ensuring the terminal assembly is fixed within the housing cavity of the metal housing. Compared to existing technologies, this invention eliminates the need for grooves and fixing slots in the main plastic component, effectively reducing its height and thus the overall connector height, meeting the miniaturization requirements of connectors. Therefore, this improved electrical connector structure boasts novel design and a small height. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a structural schematic diagram from another perspective of the present invention.

[0022] Figure 3 This is an exploded view of the present invention.

[0023] Figure 4 This is a schematic diagram of another embodiment of the present invention.

[0024] exist Figures 1 to 4 This includes:

[0025] 1-Metal casing; 11-Casing cavity; 12-Casing positioning groove; 13-Piercing rivet; 14-Upper side wall; 15-Lower side wall; 16-Left side wall; 17-Right side wall; 18-Casing pin; 2-Terminal assembly; 21-Main plastic part; 211-Positioning protrusion; 212-Void groove; 22-Metal terminal. Detailed Implementation

[0026] The present invention will now be described in conjunction with specific embodiments.

[0027] Example 1, as Figures 1 to 4 As shown, an improved electrical connector structure includes a metal housing 1 and a terminal assembly 2. The metal housing 1 has a housing cavity 11 that extends through the front and back. The terminal assembly 2 is embedded in the housing cavity 11 of the metal housing 1.

[0028] Specifically, such as Figures 1 to 4As shown, the terminal assembly 2 includes a main plastic part 21 and a terminal group embedded in the main plastic part 21 and injection molded integrally with the main plastic part 21. The terminal group includes a plurality of spaced metal terminals 22. It should be explained that, as... Figure 3 As shown, each metal terminal 22 has a plug-in pin at its rear end, meaning that the improved electrical connector structure in this embodiment is a plug-in connector; or, as... Figure 4 As shown, each metal terminal 22 has a surface mount pin at its rear end, meaning that the improved electrical connector structure in this embodiment is a surface mount connector.

[0029] Furthermore, such as Figures 1 to 4 As shown, the rear edge of the metal shell 1 is provided with a number of shell positioning grooves 12 arranged at intervals and opening to the rear. The rear edge of the main plastic part 21 is provided with positioning protrusions 211 protruding outwards for each shell positioning groove 12. The positioning protrusions 211 and the main plastic part 21 are an integral structure, and each positioning protrusion 211 is embedded into the corresponding shell positioning groove 12.

[0030] Furthermore, such as Figures 1 to 4 As shown, the rear edge of the metal shell 1 is also provided with several piercing rivets 13. The piercing rivets 13 are integral with the metal shell 1. Each piercing rivet 13 is riveted inward and each piercing rivet 13 blocks and limits the rear surface of the main plastic part 21.

[0031] It should be noted that the improved electrical connector is a 16-pin or 24-pin connector.

[0032] In the assembly process of the improved electrical connector structure in this embodiment, the terminal assembly 2 is pushed and inserted into the housing cavity 11 of the metal housing 1 from back to front. During this process, each positioning protrusion 211 of the main plastic part 21 is aligned with the corresponding housing positioning groove 12. After the terminal assembly 2 is pushed into place, each positioning protrusion 211 is embedded in the corresponding housing positioning groove 12, and each positioning protrusion 211 abuts against the side wall of the corresponding housing positioning groove 12. That is, the metal housing 1 limits the main plastic part 21 from the front through the side wall of the housing positioning groove 12. After the terminal assembly 2 is pushed into place, each piercing rivet 13 is riveted inward so that the piercing rivet 13 blocks and limits the rear surface of the main plastic part 21. At this time, each piercing rivet 13 limits the main plastic part 21 from the rear, and the terminal assembly 2 is assembled.

[0033] It should be noted that the improved electrical connector structure in this embodiment uses the outer shell positioning groove 12 to position the main plastic part 21 and achieve front-side limitation, and uses the piercing rivet tongue 13 to limit the main plastic part 21 from the rear side, so as to ensure that the terminal assembly 2 is limited and fixed in the outer shell receiving cavity 11 of the metal outer shell 1.

[0034] It should be emphasized that the improved electrical connector structure of this embodiment does not require the opening of grooves and fixing grooves in the main plastic part 21. Compared with the prior art, the improved electrical connector structure of this embodiment can effectively reduce the height of the main plastic part 21, thereby reducing the overall height of the connector, which meets the needs of connector miniaturization.

[0035] In summary, the improved electrical connector structure of this embodiment has the advantages of novel structural design and small height, and meets the needs of connector miniaturization.

[0036] Example 2, as Figures 1 to 4 As shown, the difference between this embodiment 2 and embodiment 1 is that the metal shell 1 includes an upper side wall 14, a lower side wall 15, a left side wall 16, and a right side wall 17. The shell accommodating cavity 11 is formed by the upper side wall 14, the lower side wall 15, the left side wall 16, and the right side wall 17, and the upper side wall 14, the lower side wall 15, the left side wall 16, and the right side wall 17 are an integral structure.

[0037] Specifically, a number of outer shell positioning grooves 12 are formed at the rear end edges of the upper side wall 14 and the lower side wall 15, and a number of piercing rivet tongues 13 are provided at the rear end edges of the left side wall 16 and the right side wall 17.

[0038] Example 3, as Figures 2 to 4 As shown, the difference between this embodiment 3 and embodiment 1 is that: the rear surface of the main plastic part 21 is respectively formed with clearance grooves 212 corresponding to each piercing rivet 13, and each piercing rivet 13 is pressed into the corresponding clearance groove 212.

[0039] In this embodiment, the clearance groove 212 is used to accommodate the piercing rivet tongue 13 at the rear edge of the metal housing 1, thereby reducing the height of the metal housing 1 and further reducing the overall height of the connector.

[0040] Example 4, as Figure 1 , Figure 2 as well as Figure 4 As shown, the difference between this embodiment four and embodiment one is that: the rear edge of the metal casing 1 is provided with a number of rearwardly extending casing pins 18, and the casing pins 18 and the metal casing 1 are an integral structure.

[0041] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. An improved electrical connector structure, comprising a metal housing (1) and a terminal assembly (2), wherein the metal housing (1) has a housing cavity (11) that extends through the front and back, and the terminal assembly (2) is fitted into the housing cavity (11) of the metal housing (1); The terminal assembly (2) includes a main plastic part (21) and a terminal group embedded in the main plastic part (21) and injection molded into the main plastic part (21). The terminal group includes a number of spaced metal terminals (22). characterized in that The rear edge of the metal shell (1) is provided with a number of spaced-apart shell positioning grooves (12) that open to the rear. The rear edge of the main plastic part (21) is provided with outwardly protruding positioning protrusions (211) corresponding to each shell positioning groove (12). The positioning protrusions (211) and the main plastic part (21) are an integral structure, and each positioning protrusion (211) is embedded into the corresponding shell positioning groove (12). The rear edge of the metal shell (1) is also provided with several piercing rivets (13). The piercing rivets (13) and the metal shell (1) are an integral structure. Each piercing rivet (13) is riveted inward and each piercing rivet (13) blocks and limits the rear surface of the main plastic part (21).

2. The improved electrical connector structure of claim 1, wherein: The metal shell (1) includes an upper side wall (14), a lower side wall (15), a left side wall (16), and a right side wall (17). The shell accommodating cavity (11) is formed by the upper side wall (14), the lower side wall (15), the left side wall (16), and the right side wall (17), and the upper side wall (14), the lower side wall (15), the left side wall (16), and the right side wall (17) are an integral structure. Several of the aforementioned housing positioning grooves (12) are formed at the rear end edges of the upper sidewall (14) and lower sidewall (15), and several of the aforementioned piercing rivet tongues (13) are provided at the rear end edges of the left sidewall (16) and right sidewall (17).

3. The improved electrical connector structure of claim 1, wherein: The rear surface of the main plastic part (21) is formed with a clearance groove (212) corresponding to each of the piercing rivets (13), and each piercing rivet (13) is pressed into the corresponding clearance groove (212).

4. The improved electrical connector structure of claim 1, wherein: Each of the metal terminals (22) has a plug-in pin at its rear end.

5. The improved electrical connector structure of claim 1, wherein: Each of the metal terminals (22) has a surface mount pin at its rear end.

6. The improved electrical connector structure of claim 1, wherein: The rear edge of the metal casing (1) is provided with a number of rearwardly extending casing pins (18), and the casing pins (18) and the metal casing (1) are an integral structure.

7. The improved electrical connector structure of claim 1, wherein: The improved electrical connector has a 16-pin or 24-pin connector structure.

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