Integrated rolled contact pin suitable for sheet-type jack

Abstract

The utility model provides an integrated rolled pin suitable for a chip jack, which comprises a wire pressing area, a contact area and a main body area connecting the wire pressing area and the contact area, the plugging end of the contact area comprises two oppositely arranged contact chips and a connecting chip connecting the two contact chips, a notch is formed between the two contact chips, and the notch is connected with the main body area. And the direction of the notch and the opening direction of the wire pressing area form an angle of 90 degrees, so that the contact piece can form surface contact with a contact piece of an adaptive connector. According to the utility model, when the rolled contact pin is matched with the sheet-type jack of the jack connector to work, the opposite outer side surfaces of the two contact sheets of the rolled contact pin and the contact surface of the sheet-type jack contact element form surface contact, and the opposite inner side surfaces of the ridge surfaces of the connecting sheets contact the edges of the clamping sheets to form line contact, so that the contact reliability of the rolled contact pin is improved, and the contact quality of the rolled contact pin is improved. And the miniaturization requirement of the connector when the contact pins are densely arranged is met.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to an integrated rolled pin applicable to a chip socket. Background Art

[0002] At present, due to cost issues, rolled pins are generally selected for the board-end pins of multi-core signal connectors, and most rolled pins are in an integrated form. As shown in Figure 1 、 2 For the convenience of forming, the notch 02 of the contact area 01 of the rolled pin is in the same opening direction as the opening of the wire pressing area 03. When the rolled pin cooperates with the chip socket, since the connecting piece ridge surface 0111 of the contact area 01 and the contact piece of the chip socket are both arc-shaped, the clamping piece edge 0121 of the contact area 01 forms a short-line contact with the socket, and the connecting piece ridge surface 0111 forms a point contact with the surface of the socket, which is likely to cause poor contact.

[0003] The rolled pins of the multi-core signal connector are arranged at intervals in a row in the connector socket. If the assembly structure of the rolled pin is arranged in the direction of the interval arrangement of the rolled pins, the distance between each socket will be increased. When the number of pins is large, the large hole spacing will significantly increase the size and volume of the connector, which is not conducive to the miniaturization of the connector and the adapter connector and the dense arrangement of the contact parts. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an integrated rolled pin applicable to a chip socket, which can form a surface contact between the outer sides of the two contact pieces of the rolled pin and the contact surface of the contact piece of the chip socket when the rolled pin cooperates with the chip socket of the socket connector, and the inner side of the connecting piece ridge surface facing away from each other contacts the edge of the clamping piece to form a line contact, improving the contact reliability of the rolled pin and meeting the miniaturization requirement of the connector when the pins are densely arranged.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: an integrated rolled pin applicable to a chip socket, comprising a wire pressing area, a contact area and a main body area connecting the wire pressing area and the contact area. The plugging end of the contact area includes two relatively arranged contact pieces and a connecting piece connecting the two contact pieces. A notch is formed between the two contact pieces, and the notch direction is 90° to the opening direction of the wire pressing area, so that the contact piece can form a surface contact with the contact piece of the adapter connector.

[0006] Preferably, a transition area is provided between the main body area and the contact area, and a process groove for reserving a deformation space is opened on the transition area.

[0007] Preferably, the process groove includes a first notch consistent with the opening direction of the notch opening, and a second notch located at the connection between the transition area and the main body area, and the second notch communicates with the first notch.

[0008] Preferably, the transition area is in the shape of a circular truncated cone.

[0009] Preferably, two elastic pieces are symmetrically arranged on the same side and the opposite side of the main body area in the same direction as the opening direction of the wire pressing area.

[0010] Preferably, the root of the elastic piece is fixed to the main body area, the top of the elastic piece is a cantilever end, and the cantilever end is used to achieve the rebound function.

[0011] Preferably, the elastic piece is integrally arc-shaped from the root to the top.

[0012] Preferably, the main body area is provided with positioning ears, the positioning ears are on the same side of the main body area as the elastic piece, and the positioning ears are arranged between the elastic piece and the wire pressing area.

[0013] Preferably, the cross-section of the wire pressing area is U-shaped, and it includes a first wire pressing area and a second wire pressing area connected in sequence.

[0014] Preferably, the contact piece is in the shape of a sheet strip.

[0015] The beneficial effects of the present utility model are as follows:

[0016] By setting the notch direction of the contact area to be 90° with the opening direction of the wire pressing area, the present integrated rolled pin can form a surface contact between the outer sides of the two contact pieces of the rolled pin and the contact surface of the chip socket contact of the chip socket when the rolled pin cooperates with the chip socket of the jack connector, and the inner side of the connection piece ridge surface facing away from each other contacts the edge of the clip to form a line contact, improving the contact reliability of the rolled pin and meeting the requirements of the miniaturization of the connector when the pins are densely arranged.

[0017] In the specific work of the present integrated rolled pin, in order to simplify the forming process of the rolled pin, a transition area is provided between the main body area and the contact area, and a process groove for reserving a deformation space is opened between the transition area and the main body area. When the rolled pin and the socket are inserted into each other, when the staff applies pressure to the wire pressing area to make the contact area insert into the chip socket, the reserved deformation space, that is, the first notch and the second notch, can avoid the poor forming caused by the deformation stress of the main body area and the contact area.

[0018] The present integrated rolled pin is symmetrically provided with two elastic pieces on the same side and the opposite side of the main body area in the same direction as the opening direction of the wire pressing area, and the position of the elastic piece is adapted to the anti-withdrawal platform in the insulator. A positioning ear is provided on the same side of the main body area near the wire pressing area as the elastic piece, and the positioning ear and the elastic piece together can avoid the possible rotation of the rolled pin and realize the axial positioning function. Brief Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 It is a structural schematic diagram of the existing coiled pin.

[0021] Figure 2 It is a structural schematic diagram of the contact area of the existing coiled pin.

[0022] Figure 3 It is a structural schematic diagram of the present invention.

[0023] Figure 4 It is a structural schematic diagram of the insertion end of the pin contact area of the present invention.

[0024] Figure 5 It is a structural schematic diagram of the jack connector of the present invention.

[0025] Figure 6 It is a structural schematic diagram of the insertion end of the chip-type jack contact of the present invention.

[0026] Figure 7 It is a schematic diagram of the position of the transition area of the present invention.

[0027] Figure 8 It is a schematic diagram of the position of the process groove of the present invention.

[0028] Figure 9 It is a longitudinal sectional schematic diagram of the pin of the present invention.

[0029] Figure 10 It is a schematic diagram of the positions of the elastic piece and the positioning ear of the present invention.

[0030] Figure 1-2 In the figure, 01 is the contact area, 011 is the connecting piece, 0111 is the ridge surface of the connecting piece, 012 is the clamping piece, 0121 is the edge of the clamping piece, 02 is the notch, and 03 is the wire pressing area.

[0031] Figures 3-9Among them, 1. Contact area, 11. Contact piece, 12. Connecting piece, 121. Ridge surface of the connecting piece, 2. Notch, 3. Pressing area, 31. First pressing area, 32. Second pressing area, 4. Main body area, 41. Elastic piece, 42. Positioning ear, 5. Transition area, 51. Process groove, 6. Jack connector, 61. Chip-type jack contact, 611. Contact clip, 6111. Obtuse bending section, 6112. Extension section, 7. Anti-withdrawal platform. Specific embodiments

[0032] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] The structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model.

[0034] At the same time, it should be noted that: unless otherwise defined, the technical terms or scientific terms used herein should have the ordinary meaning understood by those with ordinary skills in the technical field to which the present utility model belongs. The meaning of "a plurality of" used in the specification and claims of the patent application of the present utility model is two or more; the terms "upper", "lower", "left", "right", "front end", "rear end", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model 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 cannot be understood as a limitation of the present utility model. The change or adjustment of its relative relationship, without substantial change in the technical content, should also be regarded as the scope within which the present utility model can be implemented.

[0035] The present utility model will be further described in detail below in conjunction with the embodiments and with reference to the accompanying drawings.

[0036] This embodiment discloses an integrated rolled pin applicable to a chip-type jack, as Figure 3 , Figure 10 shown. This embodiment includes a pressing area 3, a contact area 1, and a main body area 4 connecting the pressing area 3 and the contact area 1. The plugging end of the contact area 1 includes two relatively arranged contact pieces 11 and a connecting piece 12 connecting the two contact pieces 11. A notch 2 is formed between the two contact pieces 11, and the notch direction forms a 90° angle with the opening direction of the pressing area 3, so that the contact piece 11 can form a surface contact with the contact of the adapter connector, thereby improving the contact reliability of the pin.

[0037] As Figure 3 shown, the cross-section of the wire pressing area 3 is U-shaped, which includes a first wire pressing area 31 and a second wire pressing area 32 connected in sequence. The first wire pressing area 31 is provided with two sheet-like first crimping wings. After being crimped, the first crimping wings of the first wire pressing area 31 can wrap the wire sheath to fix the wire. The two sides of the second wire pressing area 32 have sheet-like second crimping wings. After being crimped, the second crimping wings of the second wire pressing area 32 press the conductor part inside the wire. The wire pressing area 3 is used for wire crimping to realize the conduction between the contact part and the wire. The main body area 4 is a cuboid structure as a whole.

[0038] As Figure 4 shown, the insertion end of the contact area 1 includes two oppositely arranged contact pieces 11 and a connecting piece 12 connecting the two contact pieces 11. A notch 2 is formed between the two contact pieces 11. The connecting piece 12 can specifically adopt a U-shaped bending structure.

[0039] As described in the background technology introduction, the existing rolled pins need to be densely arranged for use in a pin connector. The pin-hole spacing of the connector will affect the corresponding contact pin holes of the mating jack connector 6. As Figure 5 shown, a plurality of contact pin holes are arranged in a row on the jack connector 6 adapted to the pin connector. Each contact pin hole is provided with a chip-type jack contact 61. As Figure 6 shown, the insertion end of the chip-type jack contact 61 includes two oppositely arranged contact clips 611. The contact clip 611 includes an obtuse-angle bending section 6111 and an extension section 6112. The two extension sections 6112 extend from the body of the chip-type jack contact 61 towards the insertion end of the chip-type jack contact 61. The two extension sections 6112 gradually approach and then move away from each other along the extension direction. The turning point of the extension section 6112 forms an obtuse-angle bending section 6111. The obtuse-angle bending section 6111 is arranged close to the insertion end of the chip-type jack contact 61 to form a socket for adapting the insertion of the pin. The opposite inner sides of the two obtuse-angle bending sections 6111 form the contact surface of the contact clip 611 for electrical contact with the pin. The distance between the two obtuse-angle bending sections 6111 is closer than the distance between the two extension sections 6112.

[0040] As Figure 1 , 2As shown in the figure, the notch 02 of the existing coiled pin contact area 01 is in the same opening direction as the opening of the wire pressing area 03. When the contact area 01 is inserted into the chip socket contact 61, the contact surface between the clamping piece edge 0121 of the contact area 01 and the contact clamping piece 611 forms a short line contact, and the connecting piece ridge surface 0111 forms a point contact with the obtuse bending section 6111, which is likely to cause poor contact. Since the coiled pins of the pin connector are generally arranged in rows and the arrangement direction of the coiled pins is fixed, simply rotating the existing coiled pins directly by 90° cannot meet the requirements of dense arrangement of contact parts and miniaturization of the connector to achieve reliable surface contact between the pins and sockets.

[0041] In this embodiment, the notch 2 direction of the coiled pin is 90° to the opening direction of the wire pressing area 3. When the contact area 1 is inserted into the chip socket contact 61, the outer sides of the two contact pieces 11 facing away from each other form a surface contact with the contact surface of the obtuse bending section 6111, and the connecting piece ridge surface 121 contacts the edge of the clamping piece 611 to form a line contact, improving the contact reliability of the coiled pin.

[0042] In a specific embodiment, as Figure 7 shown, a transition area 5 is provided between the main body area 4 and the contact area 1. As Figure 8 shown, the transition area 5 is in the shape of a circular truncated cone. A process groove 51 for reserving a deformation space is provided on the transition area 5. The process groove 51 includes a first notch in the same opening direction as the notch 2, and a second notch at the connection between the transition area 5 and the main body area 4. The second notch and the first notch are connected to form the process groove 51.

[0043] The first notch and the second notch on the transition area 4 can provide a bending deformation space between the contact area 1 and the main body area 4 during the forming process of the pin, so that the pin can deform in at least two lateral directions of the transition area 4, avoiding poor forming caused by extrusion stress between the main body area 4 and the contact area 1.

[0044] As Figure 9 shown, in order to prevent the coiled pin from retreating after being inserted into the insulator of the pin connector, anti-retreat platforms 7 are provided on both sides of the coiled pin assembly hole in the insulator of the pin connector, and elastic pieces 41 are provided on the coiled pin to cooperate with the anti-retreat platforms 7. The setting position of the elastic piece 41 is adapted to the anti-retreat platform 7 in the insulator. As Figure 10 shown, two elastic pieces 41 are symmetrically provided on the same side and the opposite side of the main body area 4 in the opening direction of the wire pressing area 3. The root of the elastic piece 41 is fixed to the main body area 4. The elastic piece 41 is integrally in the shape of an arc sheet from the root to the top, and the top of the elastic piece is a cantilever end. During the process of inserting the coiled pin into the assembly hole in the insulator, the cantilever end of the elastic piece 41 is deformed by extrusion when passing through the anti-retreat platform 7 and rebounds after passing through the anti-retreat platform 7 to cooperate with the anti-retreat platform 7 to achieve the anti-retreat function of the coiled pin.

[0045] As shown Figure 10 in the figure, positioning ears 42 are provided on the surface of the main body area 4 on the same side as the elastic piece 41. The positioning ears 42 are located between the elastic piece 41 and the wire pressing area 3. The positioning ears 42 are used for anti-withdrawal platform 7 of the insulator to cooperate with the stop to realize the axial positioning function of the pin in the pin connector. The arrangement of the positioning ears 42 and the elastic piece 41 prevents the rolled pin from rotating relative to the pin connector.

[0046] It should be noted that the parts not described in detail in the above embodiments are all prior art.

[0047] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the equivalent embodiments with equivalent changes within the scope of the technical solution of the present invention. However, as long as it does not deviate from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention should be covered by the protection scope of the present invention.

Claims

1. An integrated rolled pin suitable for a sheet-type socket, characterized in that: The invention comprises a wire pressing area (3) and a contact area (1) and a main body area (4) connecting the wire pressing area (3) and the contact area (1); the plug-in end of the contact area (1) comprises two contact pieces (11) arranged opposite to each other and a connecting piece (12) connecting the two contact pieces (11); a notch (2) is formed between the two contact pieces (11); the direction of the notch (2) is 90 degrees to the opening direction of the wire pressing area (3), so that the contact piece (11) can form a surface contact with a contact piece of an adapter connector.

2. The one-piece rolled pin suitable for a sheet-type socket according to claim 1, characterized in that: A transition zone (5) is provided between the main body zone (4) and the contact zone (1), and a process groove (51) for reserving deformation space is provided on the transition zone (5).

3. The one-piece rolled pin suitable for a sheet-type socket according to claim 2, characterized in that: The process groove (51) comprises a first groove having an opening direction consistent with that of the groove (2), and a second groove located at the connection between the transition area (5) and the main area (4), wherein the second groove is connected to the first groove.

4. The one-piece rolled pin suitable for a sheet-type socket according to claim 2, characterized in that: The transition zone (5) is a ring-cone-shaped structure.

5. The one-piece rolled pin suitable for a sheet-type socket according to claim 1, characterized in that: The main body area (4) is symmetrically provided with two spring sheets (41) on the same side and the opposite side of the opening direction of the wire pressing area (3).

6. The one-piece rolled pin suitable for a sheet-type socket according to claim 5, characterized in that: The root of the spring piece (41) is fixed to the main body area (4), and the top of the spring piece (41) is an overhanging end, which is used to realize a rebound function.

7. The one-piece rolled pin suitable for a sheet-type socket according to claim 6, characterized in that: The spring sheet (41) is in an overall arc-shaped sheet shape from the root to the top.

8. The one-piece rolled pin suitable for a sheet-type socket according to claim 5, characterized in that: The main body region (4) is provided with a positioning ear (42), the positioning ear (42) and the spring sheet (41) are located on the same side of the main body region (4), and the positioning ear (42) is arranged between the spring sheet (41) and the wire pressing region (3).

9. The one-piece rolled pin suitable for a sheet-type socket according to claim 1, characterized in that: The cross section of the wire pressing area (3) is U-shaped, and comprises a first wire pressing area (31) and a second wire pressing area (32) which are connected in sequence.

10. The one-piece rolled pin suitable for a sheet-type socket according to claim 1, characterized in that: The contact sheet (11) is a sheet-shaped strip structure.

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