Small-size high-density signal push-pull self-locking connector

Abstract

The utility model relates to the technical field of signal connectors, in particular to a small-size high-density signal push-pull self-locking connector. Comprising a first metal shell, a first plastic main body and a plurality of first terminals; the first metal shell is provided with a first mounting cavity, and is provided with a first limiting pin capable of extending and retracting to the first mounting cavity; the first plastic main body is coated with an upper supporting piece and a lower supporting piece, after the first plastic main body is inserted into the first mounting cavity, the upper supporting piece and the lower supporting piece abut against the surface of the first mounting cavity, and the first limiting pin can abut against the rear side face of the upper supporting piece and the rear side face of the lower supporting piece. Compared with the prior art, the first deformation limiting notch between the upper supporting sheet and the lower supporting sheet is used for preventing the first plastic main body from being excessively deformed in the assembling process, so that the reliability and the assembling yield during assembling are improved, and defective products are reduced; and the first plastic main body is locked through the first limiting pin, so that the first plastic main body does not need to extend into the first wiring port for wiring, and the wiring convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of signal connectors, and particularly relates to a small-volume high-density signal push-pull self-locking connector. Background Art

[0002] A connector, also known as a plug, socket or electrical connector in China. Generally, it refers to an electrical connector, which is a device connecting two active components to transmit current or signals. A connector is a component often contacted by electronic engineering technicians, and its function is very simple: it bridges the communication between the interrupted or isolated circuits in a circuit, so that the current can flow through and the circuit can achieve the predetermined function.

[0003] In the prior art, the problems existing in the signal connector for connecting two active components are as follows: 1. In order to increase the number of terminals of the signal connector, more terminals need to be embedded in the plastic body of the same size to increase the density of the terminals, so as to improve the transmission capacity of the signal connector. However, the plastic body of this structure is often difficult to strongly support the terminals. Once the plastic body is inserted into the metal shell and is extruded by external force, it is easy to deform or even cause the terminals to be displaced, so the assembly yield is limited. 2. In order to improve the waterproof performance of the signal connector, the plastic body and the terminals are both accommodated inside the metal shell. When wiring, it is very difficult to perform wire soldering operations, which seriously affects the convenience of wiring.

[0004] Therefore, it is necessary to study a new technical solution to solve the above problems. Content of the Utility Model

[0005] In view of this, aiming at the deficiencies existing in the prior art, the main purpose of the utility model is to provide a small-volume high-density signal push-pull self-locking connector, which effectively solves the technical defects of low assembly yield and inconvenient wiring existing in the prior art for signal connectors.

[0006] To achieve the above purpose, the utility model adopts the following technical solution: A small-volume high-density signal push-pull self-locking connector, comprising

[0007] A first metal shell, provided with a first installation cavity; the first installation cavity penetrates through the front end of the first metal shell to form a first insertion port, and the first installation cavity penetrates through the rear end of the first metal shell to form a first wiring port; a first limit pin is movably installed on the first metal shell, and the first limit pin can extend into or withdraw from the first installation cavity;

[0008] The first plastic body has an upper support piece and a lower support piece wrapped on its outer surface. The ends of the upper support piece and the lower support piece are spaced apart to form a first deformation limiting notch. After the first plastic body is inserted into the first installation cavity, the outer surfaces of the upper support piece and the lower support piece abut against the surface of the first installation cavity, and the first limit pin can abut against the rear sides of the upper support piece and the lower support piece.

[0009] A plurality of first terminals include a first inlay part embedded in the first plastic body, a first plugging part integrally formed at the front end of the first inlay part and extending towards one end of the first plugging port, and a first wiring part integrally formed on the first inlay part and extending towards one end of the first wiring port.

[0010] The beneficial effects of the small-volume high-density signal push-pull self-locking connector provided by this application are as follows: Compared with the prior art, by wrapping the upper support piece and the lower support piece on the outer surface of the first plastic body, the first deformation limiting notch between the upper support piece and the lower support piece is used to prevent excessive deformation of the first plastic body during the assembly process, improving the reliability and assembly yield rate of the first plastic body during assembly and reducing the occurrence of defective products.

[0011] At the same time, through the arranged first limit pin, the first plastic body can be detachably installed in the first installation cavity. When performing wiring operations, the first limit pin can be directly retracted, and then the first plastic body can be taken out to perform wiring operations on each first terminal. After wiring is completed, the first plastic body can be directly inserted and locked by the first limit pin. The operator does not need to reach into the first wiring port for wiring, thereby improving the convenience of wiring.

[0012] It should be noted here that when the first limit pin needs to abut against both the upper support piece and the lower support piece at the same time, two first limit pins need to be provided; when only abutting against the upper support piece or the lower support piece is required, only one first limit pin can be provided.

[0013] As a preferred solution: The outer surface of the first plastic body is provided with a first limit convex ring, and the inner surfaces of the upper support piece and the lower support piece are provided with a first annular limit groove for the first limit convex ring to be inserted into.

[0014] As a preferred solution: The outer surface of the first plastic body is provided with a first convex block, and the upper support piece or the lower support piece is provided with a first notch for the first convex block to be inserted into.

[0015] As a preferred solution: The first metal shell is provided with a first blind hole, the first blind hole is conductively connected to the first installation cavity, and the first limit pin is movably installed in the first blind hole.

[0016] As a preferred solution: It further includes a first spring; one end of the first spring is connected to the first blind hole, and the other end is connected to the first limit pin.

[0017] As a preferred solution: the first metal shell is provided with a first through hole extending forward and backward, one end of the first through hole communicates with the side surface of the first blind hole, and one end of the first through hole penetrates the surface of the first metal shell; a first telescopic rod that can move forward and backward is installed in the first through hole, one end of the first telescopic rod can abut against the first limit pin, and the other end of the first telescopic rod can expose the outer surface of the first metal shell.

[0018] As a preferred solution: the first limit pin and the first telescopic rod are arranged front and back, a first concave position is provided on the side of the first limit pin facing the first telescopic rod, and a first inclined surface that slopes forward from bottom to top is provided on the lower surface of the first concave position; a second inclined surface that slopes forward from bottom to top is provided on the side of the first telescopic rod facing the first limit pin; when the first telescopic rod moves forward, the second inclined surface abuts against the first inclined surface and acts on the first limit pin to displace in a direction away from the first installation cavity.

[0019] As a preferred solution: it further includes a connector plug, the connector plug has a first metal shell, the first metal shell is provided with a first insertion interface, and a first annular snap groove is provided on the inner side surface of the first insertion interface; a sub-shell is installed on the outer surface of the first metal shell, multiple elastic arms are provided on the front side of the sub-shell, and a first snap convex part that can be snapped into the first annular snap groove is provided on the front side of the outer surface of each elastic arm.

[0020] As a preferred solution: a push-pull shell is movably installed on the outer surface of the first metal shell, when the push-pull shell moves backward, it can act on multiple elastic arms to displace towards the center direction of the first insertion interface, so that the first snap convex part disengages from the first annular snap groove.

[0021] As a preferred solution: a first acting inclined surface that slopes outward from front to back is provided on the front side of the first snap convex part, and the push-pull shell is provided with a first window for the first snap convex part to insert; when the push-pull shell moves backward, the front side of the first window can abut against the first acting inclined surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a three-dimensional structural schematic diagram of a small-volume high-density signal push-pull self-locking connector provided by an embodiment of the present application;

[0024] Figure 2 is Figure 1 an exploded view of the small-volume high-density signal push-pull self-locking connector shown;

[0025] Figure 3 is Figure 1 The sectional view taken along line A-A of the small-size high-density signal push-pull self-locking connector shown;

[0026] Figure 4 is Figure 3 The partial enlarged view at position A of the small-size high-density signal push-pull self-locking connector shown;

[0027] Figure 5 is Figure 1 The sectional view of the small-size high-density signal push-pull self-locking connector and the connector plug shown.

[0028] Among them, each reference numeral in the figure:

[0029] 10. First metal shell; 101. First installation cavity; 102. First insertion port; 103. First wiring port; 104. First limit pin; 1041. First concave position; 1042. First inclined surface; 105. First blind hole; 106. First spring; 107. First through hole; 108. First telescopic rod; 1081. Second inclined surface; 109. Sub-shell; 1010. Elastic arm; 1020. First buckling convex part; 1021. First acting inclined surface; 1030. Push-pull shell; 1031. First window; 11. First plastic main body; 111. Upper support piece; 112. Lower support piece; 113. First deformation limiting notch; 114. First limit convex ring; 115. First annular limit groove; 116. First convex block; 117. First notch; 12. First terminal; 121. First inlay part; 122. First insertion part; 123. First wiring part.

[0030] 20. Second metal shell; 21. Second insertion port; 22. First annular buckling groove. Detailed implementation manners

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clearer, the following further elaborates on this application in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0034] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality of" is two or more unless otherwise specifically defined.

[0035] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the drawings and embodiments.

[0036] Please refer to Figures 1 to 5 together, and now a small-volume high-density signal push-pull self-locking connector provided by an embodiment of the present application will be described. The small-volume high-density signal push-pull self-locking connector includes: a first metal shell 10, a first plastic main body 11, and a plurality of first terminals 12.

[0037] The first metal shell 10 is provided with a first installation cavity 101. The first installation cavity 101 penetrates through the front end of the first metal shell 10 to form a first insertion port 102, and the first installation cavity 101 penetrates through the rear end of the first metal shell 10 to form a first wiring port 103. A first limit pin 104 is movably installed on the first metal shell 10, and the first limit pin 104 can extend into or withdraw from the first installation cavity 101. The outer surface of the first plastic main body 11 is coated with an upper support piece 111 and a lower support piece 112. The end of the upper support piece 111 and the end of the lower support piece 112 are spaced apart to form a first deformation limiting notch 113. After the first plastic main body 11 is inserted into the first installation cavity 101, the outer surfaces of the upper support piece 111 and the lower support piece 112 abut against the surface of the first installation cavity 101, and the first limit pin 104 can abut against the rear sides of the upper support piece 111 and the lower support piece 112. The plurality of first terminals 12 include a first embedding portion 121 embedded in the first plastic main body 11, a first insertion portion 122 integrally formed at the front end of the first embedding portion 121 and extending towards the first insertion port 102, and a first wiring portion 123 integrally formed at the first embedding portion 121 and extending towards the first wiring port 103.

[0038] Specifically, by covering the outer surface of the first plastic body 11 with the upper support piece 111 and the lower support piece 112, the first deformation limiting notch 113 between the upper support piece 111 and the lower support piece 112 is used to prevent excessive deformation of the first plastic body 11 during the assembly process, improve the reliability and assembly yield of the first plastic body 11 during assembly, and reduce the occurrence of defective products. At the same time, through the first limit pin 104 provided, the first plastic body 11 can be detachably installed in the first installation cavity 101. When performing wiring operations, the first limit pin 104 can be directly retracted, and then the first plastic body 11 can be taken out to perform wiring operations on each first terminal 12. After the wiring is completed, the first plastic body 11 is directly inserted and locked by the first limit pin 104. The operator does not need to reach into the first wiring port 103 for wiring, thereby improving the convenience of wiring.

[0039] More specifically, the first deformation limiting notch 113 can provide a deformable interval amount for the first plastic body 11. When the deformation of the first plastic body 11 is greater than the height of the first deformation limiting notch 113, the ends of the upper support piece 111 and the lower support piece 112 can abut against each other to prevent the first plastic body 11 from deforming further.

[0040] When performing wiring operations, first act on the first positioning pin to cancel the limit on the upper support piece 111 and the lower support piece 112. Then, pull out the first plastic body 11 from the first installation cavity 101 backward through the first wiring port 103. After wiring each first wiring part 123 of the multiple first terminals 12 one by one, insert the first plastic body 11 into the first installation cavity 101 from the first wiring port 103. Finally, act on the first positioning pin to extend into the first installation cavity 101 and abut against the rear surfaces of the upper support piece 111 and the lower support piece 112, and the limit on the first plastic body 11 can be completed to complete the wiring and assembly operations.

[0041] In some embodiments of the present application, a first limit convex ring 114 is provided on the outer surface of the first plastic body 11, and a first annular limit groove 115 for inserting the first limit convex ring 114 is provided on the inner surfaces of the upper support piece 111 and the lower support piece 112. A first convex block 116 is provided on the outer surface of the first plastic body 11, and a first notch 117 for inserting the first convex block 116 is provided on the upper support piece 111 or the lower support piece 112. With such a structure, the assembly firmness of the first plastic body 11, the upper support piece 111 and the lower support piece 112 can be improved, and it is not easy to loosen, thereby improving the use reliability.

[0042] In some other embodiments of the present application, the first metal shell 10 is provided with a first blind hole 105. The first blind hole 105 is conductively connected to the first installation cavity 101, and the first limit pin 104 is movably installed in the first blind hole 105. A first spring 106 is arranged between the first limit pin 104 and the first blind hole 105. One end of the first spring 106 is connected to the first blind hole 105, and the other end is connected to the first limit pin 104. The first spring 106 is used to provide an elastic force for the first limit pin 104 to extend into the first installation cavity 101.

[0043] Specifically, the first metal shell 10 is provided with a first through hole 107 extending in the front-rear direction. One end of the first through hole 107 communicates with the side surface of the first blind hole 105, and one end of the first through hole 107 penetrates the surface of the first metal shell 10; a first telescopic rod 108 that can move back and forth is installed in the first through hole 107. One end of the first telescopic rod 108 can abut against the first limit pin 104, and the other end of the first telescopic rod 108 can be exposed outside the outer surface of the first metal shell 10.

[0044] Preferably, the first limit pin 104 and the first telescopic rod 108 are arranged in the front-rear direction. A first concave portion 1041 is provided on the side of the first limit pin 104 facing the first telescopic rod 108, and a first inclined surface 1042 that slopes forward from bottom to top is provided on the lower surface of the first concave portion 1041; a second inclined surface 1081 that slopes forward from bottom to top is provided on the side of the first telescopic rod 108 facing the first limit pin 104; when the first telescopic rod 108 moves forward, the second inclined surface 1081 abuts against the first inclined surface 1042 and acts on the first limit pin 104 to displace it in a direction away from the first installation cavity 101.

[0045] In some other embodiments of the present application, it further includes a connector plug that is plugged and unplugged with a small-volume high-density signal push-pull self-locking connector. The connector plug has a second metal shell 20. The second metal shell 20 is provided with a second insertion port 21, and a first annular snap groove 22 is provided on the inner side surface of the second insertion port 21; a secondary shell 109 is installed on the outer surface of the first metal shell 10. A plurality of elastic arms 1010 are provided on the front side of the secondary shell 109, and a first snap convex portion 1020 that can be snapped into the first annular snap groove 22 is provided on the front side of the outer surface of each elastic arm 1010.

[0046] Furthermore, a push-pull shell 1030 is movably installed on the outer surface of the first metal shell 10. When the push-pull shell 1030 moves backward, it can act on a plurality of elastic arms 1010 to displace them in the direction of the center of the first insertion port 102, so that the first snap convex portion 1020 is disengaged from the first annular snap groove 22.

[0047] Specifically, the front side of the first buckling protrusion 1020 is provided with a first action inclined surface 1021 that is inclined outward from front to back, and the push-pull shell 1030 is provided with a first window 1031 for the first buckling protrusion 1020 to be inserted; when the push-pull shell 1030 moves backward, the front side of the first window 1031 can abut against the first action inclined surface 1021. After the connector plug is plugged into the small-volume high-density signal push-pull self-locking connector, the first buckling protrusion 1020 can be buckled into the first annular buckling groove 22 to prevent the connector plug from being pulled out; when the connector plug needs to be pulled out, the push-pull shell 1030 needs to be pushed backward, and at this time, the first window 1031 can be used to act on multiple first buckling protrusions 1020 to disengage from the first annular buckling groove 22, and then the connector plug can be pulled out.

[0048] The above are only preferred embodiments of the present invention, and only specifically describe the technical principles of the present invention. These descriptions are only for the purpose of explaining the principles of the present invention, and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanation here, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention, and other specific implementation methods of the present invention that can be associated with by technicians in this field without creative labor, should be included in the scope of protection of the present invention.

Claims

1. A small volume, high density signal push-pull self-locking connector, characterized in that: include The first metal shell (10) is provided with a first installation cavity (101); the first installation cavity (101) penetrates the front end of the first metal shell (10) to form a first plug interface (102), and the first installation cavity (101) penetrates the rear end of the first metal shell (10) to form a first wiring interface (103); the first metal shell (10) is movably mounted with a first limiting pin (104), and the first limiting pin (104) can extend into or withdraw from the first installation cavity (101); The first plastic body (11) is covered with an upper support sheet (111) and a lower support sheet (112) on its outer surface, and the ends of the upper support sheet (111) and the lower support sheet (112) are spaced apart to form a first deformation limiting notch (113); when the first plastic body (11) is inserted into the first installation cavity (101), the outer surfaces of the upper support sheet (111) and the lower support sheet (112) abut against the surface of the first installation cavity (101), and the first limiting pin (104) can abut against the rear side surfaces of the upper support sheet (111) and the lower support sheet (112); A plurality of first terminals (12) include a first embedding portion (121) embedded in the first plastic body (11), a first plug-in portion (122) integrally formed at the front end of the first embedding portion (121) and extending toward one end of the first plug interface (102), and a first wiring portion (123) integrally formed at the first embedding portion (121) and extending toward one end of the first wiring interface (103).

2. The small-volume, high-density signal push-pull self-locking connector according to claim 1, characterized in that: The outer surface of the first plastic body (11) is provided with a first limiting convex ring (114), and the inner surfaces of the upper support plate (111) and the lower support plate (112) are provided with a first annular limiting groove (115) for the first limiting convex ring (114) to be inserted.

3. The small-volume, high-density signal push-pull self-locking connector according to claim 1 or 2, characterized in that: The outer surface of the first plastic body (11) is provided with a first protrusion (116), and the upper support sheet (111) or the lower support sheet (112) is provided with a first notch (117) for the first protrusion (116) to be inserted.

4. The small-volume, high-density signal push-pull self-locking connector according to claim 1, characterized in that: The first metal shell (10) is provided with a first blind hole (105), the first blind hole (105) is conductively connected to the first installation cavity (101), and the first limiting pin (104) is movably installed in the first blind hole (105).

5. The small-volume, high-density signal push-pull self-locking connector according to claim 1, characterized in that: Also includes a first spring (106); One end of the first spring (106) is connected to the first blind hole (105), and the other end is connected to the first limiting pin (104).

6. The small-volume, high-density signal push-pull self-locking connector according to claim 4 or 5, characterized in that: The first metal shell (10) is provided with a first through hole (107) extending forward and backward, one end of the first through hole (107) is connected to the side of the first blind hole (105), and one end of the first through hole (107) passes through the surface of the first metal shell (10); The first through hole (107) is provided with a first telescopic rod (108) that can move forward and backward, one end of the first telescopic rod (108) can abut against the first limit pin (104), and the other end of the first telescopic rod (108) can expose the outer surface of the first metal shell (10).

7. The small-volume, high-density signal push-pull self-locking connector according to claim 6, characterized in that: The first limit pin (104) and the first telescopic rod (108) are arranged front and rear, a first recess (1041) is provided on the side of the first limit pin (104) facing the first telescopic rod (108), and a first inclined surface (1042) inclined from bottom to top and forward is provided on the lower surface of the first recess (1041); A second inclined surface (1081) tilted from bottom to top and forward is provided on the side of the first telescopic rod (108) facing the first limiting pin (104); When the first telescopic rod (108) moves forward, the second inclined surface (1081) and the first inclined surface (1042) abut against each other and act to cause the first limiting pin (104) to move in a direction away from the first installation cavity (101).

8. The small-volume, high-density signal push-pull self-locking connector according to claim 1, characterized in that: It also includes a connector plug, the connector plug having a second metal shell (20), the second metal shell (20) being provided with a second plug interface (21), and the inner side surface of the second plug interface (21) being provided with a first annular buckling groove (22); A secondary shell (109) is installed on the outer surface of the first metal shell (10), and a plurality of elastic arms (1010) are provided on the front side of the secondary shell (109). A first buckling protrusion (1020) capable of buckling into a first annular buckling groove (22) is provided on the front side of the outer surface of each elastic arm (1010).

9. The small-volume, high-density signal push-pull self-locking connector according to claim 8, characterized in that: A push-pull shell (1030) is movably mounted on the outer surface of the first metal shell (10); when the push-pull shell (1030) moves backward, it can act on multiple elastic arms (1010) to move toward the center direction of the first plug interface (102), so that the first buckling protrusion (1020) is disengaged from the first annular buckling groove (22).

10. The small-volume, high-density signal push-pull self-locking connector according to claim 9, characterized in that: The front side of the first buckling protrusion (1020) is provided with a first action inclined surface (1021) inclined outward from front to back, and the push-pull shell (1030) is provided with a first window (1031) for the first buckling protrusion (1020) to be inserted; When the push-pull shell (1030) moves backward, the front side of the first window (1031) can abut against the first action slope (1021).

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