D-sub connector

Abstract

The utility model relates to the technical field of connectors, in particular to a D-sub connector. The D-sub connector comprises a pin, a first rubber core, a second rubber core, a first shielding shell, a second shielding shell and a first fastener. An anti-skid ring with anti-skid lines is arranged on the limiting part in the middle of the pin; the pin penetrates through the first rubber core and the second rubber core; the first shielding shell and the second shielding shell wrap the rubber core; the pin head part of the pin is exposed at the connecting port of the first shielding shell; the pin part of the pin extends out of the second shielding shell and is bent to pass through the insulating base; and the first fastener passes through the first shielding shell and the second shielding shell and is fastened with the fixing pins on the insulating base. The pin penetrates through the first rubber core and the second rubber core in an interference fit manner; the friction force between the pin and the inner wall of the pin hole is further enhanced through the anti-skid ring, and under the action of double fastening force, the pin is firmly fixed in the pin hole and does not loosen or rotate, so that the follow-up procedure processing is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a D-sub connector. Background Art

[0002] D-sub connector is a type of connector. D-sub connector production design D-sub connector has a variety of models, options and accessories, is a very economical interconnection solution. Including high and low frequency mixed, high current and high density D-sub connector, D-sub connector, including insulation body, harpoon-shaped plate lock, back cover and multiple conductive terminals; after assembly, the harpoon-shaped plate lock is limited in the limit mechanism.

[0003] Some terminals of some D-SUB connectors on the market are assembled in the rubber core by plugging. Due to the shape of the terminals (cylindrical / similar to cylindrical), some terminals are easy to loosen in the rubber core during the subsequent process, which causes the terminals to rotate, and the assembly firmness is poor, affecting the subsequent processing.

[0004] For example, the plug-in type D-SUB connector disclosed in Chinese patent application number: CN200820096073.5 includes an insulating body, a plurality of conductive terminals, two harpoon-shaped plate locks and a rear cover; the insulating body is provided with terminal holes corresponding to the number of conductive terminals; the plurality of conductive terminals are inserted into the terminal holes and positioned; the rear cover is covered on the insulating body to fix the plurality of conductive terminals; the harpoon-shaped plate locks are fixedly arranged on both sides of the insulating body, characterized in that the front end of the conductive terminal is curled to form a rounded end, and the conductive terminal is fixed on the insulating body by the interference fit between the rounded end and the terminal hole. The front end of the conductive terminal is similar to a cylinder. After the conductive terminal is inserted into the terminal hole, the terminal is easy to rotate, and the assembly firmness is poor, which affects the subsequent processing.

[0005] Another example is a side-standing D-SUB socket disclosed in Chinese patent application number: CN201220552433.4, which consists of an insulating core, a metal shell, an insulating back shell, fixed pins and a plurality of conductive terminals. The metal shell is placed outside the insulating core; the insulating back shell is located on the rear side of the insulating core; the insulating core is provided with terminal holes with the same number as the conductive terminals, characterized in that: the conductive terminals are respectively inserted into the terminal holes of the insulating core, and each extends straight for different distances and then bends 90 degrees in the same direction, the bent parts are parallel to the long side direction of the terminal hole surface of the insulating core, and pass through the insulating back shell; at the same time, a pair of fixed pins are fixedly connected to the metal shell on the side where the conductive terminals pass through with a locking nut. The conductive terminals are respectively inserted into the terminal holes of the insulating core and then bent 90 degrees. Since the terminals are cylindrical, they are easy to rotate in the insulating core in the subsequent process, and their assembly firmness is poor, which affects the subsequent processing. Utility Model Content

[0006] In view of this, the present invention aims to overcome the deficiencies of the prior art, and its main purpose is to provide a D-sub connector whose pins can be firmly assembled between the first rubber core and the second rubber core without rotation, which is conducive to subsequent processing, thereby overcoming the deficiencies of the prior art.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] The present application provides a D-sub connector, comprising a pin, a first rubber core, and a second rubber core, wherein the middle portion of the pin is radially expanded to form a limit portion, and an anti-slip ring with anti-slip patterns is arranged on the limit portion; the pin passes through the first rubber core and the second rubber core, and the limit portion is wrapped by the first rubber core and the second rubber core;

[0009] The first shielding shell and the second shielding shell wrap the first rubber core and the second rubber core; the needle head of the pin needle is exposed at the connection port of the first shielding shell; the pin foot of the pin needle extends from the second shielding shell and is bent to pass through the insulating base;

[0010] The first fastener passes through the first shielding shell and the second shielding shell, and is fastened together with the fixing feet on the insulating base.

[0011] Preferably, the pin hole passes through the first rubber core and the second rubber core; a limiting groove adapted to the anti-slip ring is arranged inside the pin hole, and the anti-slip ring is embedded in the limiting groove; the anti-slip pattern of the anti-slip ring is in the shape of a mesh, a strip, or a gear.

[0012] Preferably, a positioning hole is provided on the first rubber core, and a positioning column is provided on the second rubber core, and the positioning column is inserted into the positioning hole.

[0013] Preferably, the first fastener comprises an integrally formed nut and a bolt; the bolt passes through the fixing foot and is tightened together with the gasket.

[0014] Preferably, the insulating base is provided with a mounting groove, and the fixing portion and the gasket of the fixing foot are arranged in the mounting groove; the mounting portion of the fixing foot passes through the groove wall of the mounting groove and the insulating base.

[0015] Preferably, the mounting portion is vertically provided with a deformation seam, and both sides of the mounting portion protrude outwards.

[0016] Preferably, a limiting block facing inward is provided on the wall shell where the connecting port is located.

[0017] Preferably, a riveting sheet is provided at an edge of the first shielding shell, a riveting opening is provided at an edge of the first shielding shell, and the riveting sheet is riveted at the riveting opening.

[0018] Preferably, the insulating base is provided with an escape opening for evading the riveting sheet.

[0019] Preferably, the rivet hole passes through the first shielding shell and the second shielding shell, and the rivet is riveted in the rivet hole.

[0020] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that the present application provides a D-sub connector, including a pin needle, a first rubber core, a second rubber core, a first shielding shell, a second shielding shell, and a first fastener. The pin needle is integrally stamped and formed. The pin needle is inserted into the first rubber core and the second rubber core by interference fit, and the limiting part of the pin needle is wrapped by the first rubber core and the second rubber core, and the pin needle hole generates a first level of fastening force. At the same time, the anti-skid ring with anti-skid patterns on the limiting part can further enhance the friction between the pin needle and the inner wall of the pin needle hole, generating a second level of fastening force. Therefore, under the action of the double fastening force, the pin needle is firmly fixed in the pin needle hole, will not loosen, and will not rotate, which is more conducive to subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall schematic diagram of an embodiment of the utility model.

[0022] Figure 2 It is an embodiment of the utility model Figure 1 Schematic diagram from another angle.

[0023] Figure 3 It is a bottom view schematic diagram of an embodiment of the utility model.

[0024] Figure 4 It is an exploded schematic diagram of an embodiment of the utility model.

[0025] Figure 5 It is an exploded schematic diagram of an embodiment of the utility model.

[0026] Figure 6 It is a top view schematic diagram of an embodiment of the utility model.

[0027] Figure 7 It is an embodiment of the utility model Figure 6 AA section diagram.

[0028] Figure 8 It is an embodiment of the utility model Figure 6 Schematic diagram of the BB cross-section.

[0029] Description of the accompanying drawings:

[0030] 10. pin needle; 11. limiting part; 12. anti-slip ring; 20. first rubber core; 21. positioning hole; 22. pin needle hole; 23. limiting groove; 30. second rubber core; 31. positioning column; 40. first shielding shell; 41. limiting block; 42. riveting sheet; 50. second shielding shell; 51. riveting mouth; 52. riveting hole; 60. insulating base; 61. mounting groove; 62. avoidance mouth; 70. fixing foot; 71. fixing part 72. mounting part; 73. deformation joint; 74. gasket; 80. first fastener; 81. nut; 82. bolt. DETAILED DESCRIPTION

[0031] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0032] Please refer to Figures 1 to 8 As shown, it shows the specific structure of a preferred embodiment of the utility model, which is a D-sub connector.

[0033] The middle part of the integrally formed pin needle 10 is radially expanded to form a limit portion 11, and an anti-skid ring 12 with anti-skid patterns is arranged on the limit portion 11. When the pin needle 10 is inserted into the first rubber core 20 and the second rubber core 30 by interference fit, the pin needle 10 is tightly wrapped by the pin needle hole 22, and the anti-skid ring 12 can play a good anti-skid role, so the pin needle 10 will not loosen, which is more conducive to subsequent processing.

[0034] The present application provides a D-sub connector, comprising a pin 10, a first rubber core 20, and a second rubber core 30. The middle part of the pin 10 is radially expanded to form a limit portion 11, and an anti-skid ring 12 with anti-skid patterns is arranged on the limit portion 11; the pin 10 passes through the first rubber core 20 and the second rubber core 30, and the limit portion 11 is wrapped by the first rubber core 20 and the second rubber core 30; the first shielding shell 40 and the second shielding shell 50 wrap the first rubber core 20 and the second rubber core 30; the needle head of the pin 10 is exposed at the connection port of the first shielding shell 40; the pin portion of the pin 10 extends from the second shielding shell 50 and is bent to pass through the insulating base 60; the first fastener 80 passes through the first shielding shell 40 and the second shielding shell 50, and is fastened to the fixing foot 70 on the insulating base 60. The pin 10 in this embodiment is solid and directly formed by stamping, and its conductive performance is better. The first rubber core 20 and the second rubber core 30 have good insulation performance. The size of the pin pin 10 is slightly larger than that of the pin pin hole 22, and the pin pin 10 can be inserted into the pin pin hole 22 by interference fit. A limiting groove 23 adapted to the anti-slip ring 12 is provided inside the pin pin hole 22, and the anti-slip ring 12 is embedded in the limiting groove 23. Therefore, under the dual effects of the fastening force of the pin pin hole 22 on the pin pin 10 and the friction force between the anti-slip ring 12 and the inner wall of the pin pin hole 22, the pin pin 10 will not loosen or rotate between the first rubber core 20 and the second rubber core 30, which is more conducive to subsequent processing. The pin pin 10 extends from the second shielding shell 50 and passes through the insulating base 60 after being bent 90°. This makes the pin pin 10 partially exposed, which is conducive to heat dissipation. At the same time, the pin pin 10 bent 90° is more conducive to saving space. The first fastener 80 passes through the first shielding shell 40 and the second shielding shell 50, and is fastened together with the fixing foot 70 on the insulating base 60, which makes the assembly of the D-sub connector very simple.

[0035] The anti-skid pattern of the anti-skid ring 12 is in a mesh, strip, or gear shape. In this embodiment, the anti-skid pattern of the anti-skid ring 12 is in a gear shape, and its teeth are distributed on the outer wall of the anti-skid ring 12 and are parallel to the anti-skid ring 12. This design can obtain the maximum friction force, which is helpful to prevent the pin 10 from rotating.

[0036] Preferably, the first rubber core 20 is provided with a positioning hole 21, and the second rubber core 30 is provided with a positioning column 31, and the positioning column 31 is inserted into the positioning hole 21. When the first rubber core 20 and the second rubber core 30 are assembled together, the positioning column 31 is inserted into the positioning hole 21, and this assembly method is very simple.

[0037] Preferably, the first fastener 80 includes an integrally formed nut 81 and a bolt 82; the bolt 82 passes through the fixing foot 70 and is tightened together with the gasket 74. The insulating base 60 is provided with a mounting groove 61, and the fixing portion 71 of the fixing foot 70 and the gasket 74 are arranged in the mounting groove 61; the mounting portion 72 of the fixing foot 70 passes through the groove wall of the mounting groove 61 and the insulating base 60. The gasket 74 is preferably a four-corner gasket 74, which can be directly positioned in the mounting groove 61. The nut 81 provides a connection fixing position for the docking connector. During assembly, the bolt 82 passes through the first shielding shell 40, the second shielding shell 50, and the fixing foot 70, and then is tightened on the gasket 74. This structure of assembling the insulating base 60, the first shielding shell 40, and the second shielding shell 50 together is simple and quick.

[0038] Preferably, the mounting portion 72 is vertically provided with a deformation gap 73, and the two sides of the mounting portion 72 protrude outward. The deformation gap 73 is conducive to the deformation of the mounting portion 72, and the two sides of the mounting portion 72 protrude outward, which is conducive to the mounting hole on the insulating base 60 clamping the mounting portion 72. The fixing foot 70 is placed in the mounting groove 61 so that the mounting portion 72 and the mounting hole clamp the mounting portion 72, so that the initial positioning installation of the fixing foot 70 can be achieved.

[0039] Preferably, the wall shell where the connection port is located is provided with an inwardly facing limit block 41. The limit blocks 41 in this embodiment are distributed on the upper and lower wall shells where the connection port is located, which is conducive to enhancing the connection firmness of the docking connector.

[0040] Preferably, a rivet sheet 42 is provided at the edge of the first shielding shell 40, and a rivet opening 51 is provided at the edge of the first shielding shell 40, and the rivet sheet 42 is riveted to the rivet opening 51. The rivet hole 52 passes through the first shielding shell 40 and the second shielding shell 50, and the rivet is riveted to the rivet hole 52. The rivet sheet 42 is riveted to the rivet opening 51, and the rivet rivets the first shielding shell 40 and the second shielding shell 50 together, so that the first shielding shell 40 and the second shielding shell 50 are very strong.

[0041] Preferably, the insulating base 60 is provided with an escape opening 62 for escaping the riveting sheet 42 . This design is conducive to the bent pin 10 being inserted into the insulating base 60 .

[0042] Preferred D-sub connector assembly steps: 1. The pin 10 is inserted into the first plastic core 20, and then the second plastic core 30 is inserted into the pin 10 from the pin portion of the pin 10, and then the first plastic core 20 and the second plastic core 30 are combined. 2. The first shielding shell 40 and the second shielding shell 50 wrap the first plastic core 20 and the first plastic core 20; the riveting sheet 42 is riveted to the riveting opening 51, and the rivet is riveted to the riveting hole 52; then the pin 10 is bent 90°. 3. The first shielding shell 40 and the second shielding shell 50 are assembled into a whole, and then aligned with the insulating base 60 from top to bottom, so that the pin portion of the pin 10 bent 90° passes through the insulating base 60. 4. The fixing foot 70 and the gasket 74 are set in the mounting groove 61, and then the bolt 82 of the first fastener 80 is tightened with the gasket 74 to complete the assembly of the entire D-sub connector. It can be seen that the D-sub connector has a simple structure, is easy to assemble, and is more conducive to improving production efficiency.

[0043] In summary, the design focus of the utility model is that the size of the pin needle 10 is slightly larger than the size of the pin needle hole 22, and the pin needle 10 is inserted into the pin needle hole 22 with interference fit. The interior of the pin needle hole 22 is provided with a limiting groove adapted to the anti-slip ring 12, and the anti-slip ring 12 is embedded in the limiting groove. Therefore, under the dual effects of the fastening force of the pin needle hole 22 on the pin needle 10 and the friction force between the anti-slip ring 12 and the inner wall of the pin needle hole 22, the pin needle 10 will be firmly assembled on the first rubber core 20 and the second rubber core 30, will not loosen or rotate, and is more conducive to subsequent processing.

[0044] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A D-sub connector, characterized in that: It comprises a pin, a first rubber core and a second rubber core, wherein the middle part of the pin is radially expanded to form a limit portion, and an anti-slip ring with anti-slip patterns is arranged on the limit portion; the pin passes through the first rubber core and the second rubber core, and the limit portion is wrapped by the first rubber core and the second rubber core; The first shielding shell and the second shielding shell wrap the first plastic core and the second plastic core; the needle head of the pin needle is exposed at the connection port of the first shielding shell; the pin foot of the pin needle extends out of the second shielding shell; the pin foot of the pin needle is bent and passes through the insulating base; The first fastener passes through the first shielding shell and the second shielding shell, and is fastened together with the fixing feet on the insulating base.

2. A D-sub connector according to claim 1, characterized in that: The pin hole passes through the first rubber core and the second rubber core; a limiting groove adapted to the anti-slip ring is arranged inside the pin hole, and the anti-slip ring is embedded in the limiting groove; the anti-slip pattern of the anti-slip ring is in the shape of a mesh, a strip, or a gear.

3. A D-sub connector according to claim 1 or 2, characterized in that: The first rubber core is provided with a positioning hole, and the second rubber core is provided with a positioning column, which is inserted into the positioning hole.

4. A D-sub connector according to claim 1, characterized in that: The first fastener comprises an integrally formed nut and a bolt; the bolt passes through the fixing foot and is tightened together with the gasket.

5. A D-sub connector according to claim 4, characterized in that: The insulating base is provided with a mounting groove, and the fixing portion and the gasket of the fixing foot are arranged in the mounting groove; the mounting portion of the fixing foot passes through the groove wall of the mounting groove and the insulating base.

6. A D-sub connector according to claim 5, characterized in that: The mounting portion is vertically provided with a deformation seam, and both sides of the mounting portion protrude outwards.

7. A D-sub connector according to claim 1, characterized in that: A limiting block facing inward is arranged on the wall shell where the connection port is located.

8. The D-sub connector according to claim 1, characterized in that: The edge of the first shielding shell is provided with a riveting piece, the edge of the first shielding shell is provided with a riveting opening, and the riveting piece is riveted at the riveting opening.

9. A D-sub connector according to claim 8, characterized in that: The insulating base is provided with an escape opening for escaping the riveting sheet.

10. A D-sub connector according to claim 1 or 8 or 9, characterized in that: The rivet hole passes through the first shielding shell and the second shielding shell, and the rivet is riveted in the rivet hole.

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