Connector with stable contact

Abstract

The utility model discloses a stable contact connector, which comprises a male head and a female head, a first insertion core is mounted on the male head, a plurality of first through holes are formed in the first insertion core, contact pins are arranged in the first through holes, first clamp springs are sleeved on the outer sides of the contact pins, a second insertion core is mounted on the female head, a plurality of second through holes are formed in the second insertion core, and the second clamp springs are sleeved on the outer sides of the contact pins. A contact column is arranged in the second through hole, a second clamp spring sleeves the outer side of the contact column, a butt joint hole is formed in one end of the contact column, a crown spring is clamped in the butt joint hole, a plurality of contact pieces extend in the crown spring, a plurality of elastic pieces extend from the first clamp spring and the second clamp spring, and the elastic pieces of the first clamp spring abut against the inner wall of the first through hole. The elastic piece of the second clamping spring abuts against the inner wall of the second through hole, the first insertion core is in butt joint with the second insertion core, one end of the contact pin penetrates into the butt joint hole, and the contact piece abuts against the outer side of the contact pin. According to the connector with stable contact provided by the utility model, the contact column assists in clamping the contact pin through the crown spring, so that the contact stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of electrical connectors, and more particularly to a connector with stable contact. Background Technology

[0002] As a key component for electrical signal transmission, the reliability of contact between the male and female terminals of a connector directly affects the communication stability of the device. In the existing technology, the terminals of the male and female connectors generally adopt a gap fit design. When they are inserted, the outer wall of the male terminal contacts the inner wall of the female terminal to form a conductive path. There is a small assembly gap between them to ensure smooth insertion and removal.

[0003] However, this type of mating method has significant drawbacks. Due to manufacturing tolerances, it is difficult to achieve a uniform fit between the outer wall of the male connector terminal and the contact surface of the female connector terminal, resulting in a significant reduction in the effective conductive area. This causes problems such as momentary interruption, interference, or signal attenuation in high-speed signal transmission. Utility Model Content

[0004] The purpose of this invention is to provide a connector with stable contact, wherein the contact pin is clamped by a crown spring to improve contact stability.

[0005] The technical solution adopted by the contact-stable connector disclosed in this utility model is:

[0006] The device includes a male and a female connector. The male connector has a first insert with multiple first through holes. A contact pin is located within each first through hole, and a first retaining ring is fitted around the outside of the contact pin. The female connector has a second insert with multiple second through holes. A contact post is located within each second through hole, and a second retaining ring is fitted around the outside of each contact post. One end of each contact post has a mating hole, and a crown spring is engaged within the mating hole. Multiple contact pieces extend from within the crown spring. Multiple spring pieces extend from the outside of both the first and second retaining rings. The spring pieces of the first retaining ring abut against the inner wall of the first through hole, and the spring pieces of the second retaining ring abut against the inner wall of the second through hole. The first insert and the second insert are mated, and one end of the contact pin passes through the mating hole, with the contact pieces abutting against the outside of the contact pin.

[0007] As a preferred embodiment, a first annular groove is provided in the docking hole, and the crown spring is inserted into the first annular groove.

[0008] As a preferred embodiment, a second annular groove is provided on the outer side of the contact needle and the outer side of the contact post, the first retaining spring is inserted into the second annular groove of the contact needle, and the second retaining spring is inserted into the second annular groove of the contact post.

[0009] As a preferred embodiment, the first insert is composed of a first socket and a first end cap, the first through hole penetrates the first socket and the first end cap, the inner wall of the first through hole extends with a first annular step, the first annular step is located inside the first socket, and the spring piece and contact pin of the first retaining spring respectively abut against the two ends of the first annular step.

[0010] As a preferred embodiment, the second insert is composed of a second socket and a second end cap, the second through hole penetrates the second socket and the second end cap, the inner wall of the second through hole extends with a second annular step, the second annular step is located inside the second end cap, and the spring piece and contact post of the second snap ring respectively abut against the two ends of the second annular step.

[0011] As a preferred embodiment, multiple buckles extend from both the first socket and the second socket, and multiple slots are provided on both the first end cover and the second end cover. The buckles of the first socket are engaged in the slots of the first end cover, and the buckles of the second socket are engaged in the slots of the second end cover.

[0012] As a preferred embodiment, multiple positioning pins extend from both the first socket and the second socket, and multiple positioning holes are provided on both the first end cover and the second end cover. The positioning pins of the first socket pass through the positioning holes of the first end cover, and the positioning pins of the second socket pass through the positioning holes of the second end cover.

[0013] As a preferred embodiment, the first socket has a slot, one end of the contact pin is inserted into the slot, and a foolproof protrusion extends from the inner wall of the slot. The second socket has a foolproof groove, and the second socket is slidably inserted into the slot, and the foolproof protrusion is slidably inserted into the foolproof groove.

[0014] As a preferred embodiment, the male connector includes a first housing, the first insert is placed inside the first housing, and a first screw is provided on the outer side of the first housing. The first screw passes through the first housing and is fixedly connected to the first socket. The female connector includes a second housing, the second insert is placed inside the second housing, and a second screw is provided on the outer side of the second housing. The second screw passes through the second housing and is fixedly connected to the second end cap.

[0015] The beneficial effects of the contact-stable connector disclosed in this utility model are:

[0016] When the male connector is inserted into the female connector, the first and second ferrules align, and one end of the contact pin slides into the adjacent mating hole. The crown spring inside the mating hole is sleeved on the outside of the contact pin. Multiple contact pieces on the crown spring rebound with their own elasticity and touch the outside of the contact pin. The contact post uses the rebound force of the crown spring contact pieces to connect with the contact pin, thus solving the problem of uneven contact between the contact post and the contact pin, which leads to momentary interruption of signal transmission. Furthermore, the first and second retaining springs apply a central positioning constraint force to the contact pin and the contact post respectively through multiple spring pieces on themselves. The contact pin and the contact post have micro-floating capabilities within the first and second through holes, respectively, and can offset by a micro-distance. When there are machining tolerances in the contact pin and the contact post, the contact post and the contact pin simultaneously offset by a micro-distance to compensate for the tolerances, thereby allowing the crown spring on the contact pin and the contact post to fit more evenly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a connector with stable contact according to the present invention.

[0018] Figure 2 This is a schematic diagram of the installation of the first housing and the first insert of a connector with stable contact according to this utility model.

[0019] Figure 3 This is a cross-sectional view of the male connector of a connector with stable contact according to this utility model.

[0020] Figure 4 This is a schematic diagram of the first ferrule installation of a connector with stable contact according to this utility model.

[0021] Figure 5 This is a schematic diagram of the installation of the second housing and the second ferrule of a connector with stable contact according to this utility model.

[0022] Figure 6 This is a cross-sectional view of the female head of a connector with stable contact according to this utility model.

[0023] Figure 7 This is a schematic diagram of the installation of the second ferrule of a connector with stable contact according to this utility model.

[0024] Figure 8 This is a schematic diagram of the mating of the contact pins and contact posts of a connector with stable contact according to this utility model.

[0025] Figure 9 This is a partial cross-sectional view of a connector with stable contact according to this utility model. Detailed Implementation

[0026] The present invention will be further described and illustrated below with reference to specific embodiments and the accompanying drawings:

[0027] Please refer to Figures 1-3 and Figure 5 , Figure 6 .

[0028] This utility model discloses a connector with stable contact, including a male head 1 and a female head 2;

[0029] The male connector 1 includes a first outer shell 11, on which a first insert 3 is installed. The first insert 3 is placed inside the first outer shell 11. A first screw 111 is provided on the outer side of the first outer shell 11. The first screw 111 passes through the first outer shell 11 and is fixedly connected to the outer side of the first insert 3. A first sealing ring 112 is sleeved on the outer side of the first screw 111. The first sealing ring 112 seals the gap between the first screw 111 and the first outer shell 11, preventing external moisture from entering the first outer shell 11 through the gap between the first screw 111 and the first outer shell 11 and affecting the operation of the male connector 1.

[0030] Furthermore, an annular step 114 is provided at the bottom of the first outer shell 11, and a third sealing ring 115 is sleeved on the outside of the first insert 3, with the third sealing ring 115 touching the annular step 114; two limiting posts 113 extend from both sides of the first outer shell 11, with the limiting posts 113 close to the bottom of the first outer shell 11.

[0031] The female connector 2 includes a second outer shell 21, on which a second insert 4 is installed. The second insert 4 is placed inside the second outer shell 21. A second screw 211 is provided on the outside of the second outer shell 21. The second screw 211 passes through the second outer shell 21 and is fixedly connected to the outside of the second insert 4. A second sealing ring 212 is sleeved on the outside of the second screw 211. The second sealing ring 212 seals the gap between the second screw 211 and the second outer shell 21, preventing external moisture from entering the second outer shell 21 through the gap between the second screw 211 and the second outer shell 21 and affecting the operation of the female connector 2.

[0032] Furthermore, a limiter 213 is provided on the outer side of the second housing 21. The two ends of the limiter 213 are rotatably connected to the two sides of the second housing 21, respectively. The limiter 213 is close to the top of the second housing 21, and the two ends of the limiter 213 extend into limit hooks.

[0033] The first insert 3 is composed of a first socket 32 ​​and a first end cap 33. The first screw 111 is fixedly connected to the first socket 32 ​​of the first insert 3. The first insert 3 has multiple first through holes 311, which pass through the first socket 32 ​​and the first end cap 33.

[0034] The second insert 4 is composed of the second socket 42 and the second end cover 43. The second screw 211 is fixedly connected to the second end cover 43 of the second insert 4. The second insert 4 has multiple second through holes 411, which pass through the second socket 42 and the second end cover 43.

[0035] Please refer to Figures 2-7 .

[0036] The bottom of the first socket 32 ​​is provided with a slot 323, and three mating posts 321 extend from the slot 323. Three first through holes 311 pass through the three mating posts 321 and communicate with the slot 323. In addition, multiple first through holes 311 communicate with the slot 323. One end of the contact pin 5 is inserted into the slot 323. Anti-foolproof protrusions 322 extend from the inner wall of the slot 323.

[0037] Furthermore, the top of the second socket 42 is provided with three mating grooves 421, which are connected to three of the second through holes 411; the outer side of the second socket 42 is provided with a foolproof groove 422, which is close to the top of the second socket 42.

[0038] Furthermore, multiple positioning posts 34 extend from the top of the first socket 32 ​​and the bottom of the second socket 42. In this embodiment, it is preferred that there are two positioning posts 34 on the first socket 32 ​​and two positioning posts 34 on the second socket 42. Multiple positioning holes 35 are provided on the bottom of the first end cover 33 and the top of the second end cover 43. In this embodiment, it is preferred that there are two positioning holes 35 on the first end cover 33 and two positioning holes 35 on the second end cover 43. The positioning posts 34 of the first socket 32 ​​pass into the positioning holes 35 of the first end cover 33, and the positioning posts 34 of the second socket 42 pass into the positioning holes 35 of the second end cover 43. The design of the positioning posts 34 passing into the positioning holes 35 facilitates the installation of the first end cover 33 and the second end cover 43 on the first socket 32 ​​and the second socket 42 respectively, and also reduces the shaking between the components after connection.

[0039] Multiple latches 324 extend from the top of the first socket 32 ​​and the bottom of the second socket 42; in this embodiment, it is preferred that there are two latches 324 on the first socket 32, and the two latches 324 are respectively close to the two sides of the first socket 32; in this embodiment, it is preferred that there are two latches 324 on the second socket 42, and the two latches 324 are respectively close to the two sides of the second socket 42.

[0040] Furthermore, multiple slots 331 are provided on the bottom of the first end cap 33 and the top of the second end cap 43. In this embodiment, it is preferred that there are two slots 331 on the first end cap 33, with the two slots 331 respectively close to the two sides of the first end cap 33. The bottom of the first end cap 33 covers the top of the first socket 32, and the buckle 324 of the first socket 32 ​​is engaged in the slots 331 of the first end cap 33 for fixation, thereby firmly fixing the first end cap 33 to the first socket 32. In this embodiment, it is preferred that there are two slots 331 on the second end cap 43, with the two slots 331 respectively close to the two sides of the second end cap 43. The top of the second end cap 43 covers the bottom of the second socket 42, and the buckle 324 of the second socket 42 is engaged in the slots 331 of the second end cap 43 for fixation, thereby firmly fixing the second end cap 43 to the second socket 42.

[0041] The first through hole 311 is provided with a contact pin 5, and the second through hole 411 is provided with a contact post 6.

[0042] Furthermore, one end face of the contact pin 5 is provided with an arc surface, and one end of the contact post 6 is provided with a mating hole 61. A first annular groove 611 is provided in the mating hole 61. The first annular groove 611 is close to the opening of the mating hole 61. The inner diameter of the first annular groove 611 is larger than the inner diameter of the mating hole 61. A crown spring 62 is engaged in the mating hole 61. The crown spring 62 is engaged in the first annular groove 611. An external closing tool is used to compress the opening of the first annular groove 611 so that the inner diameter of the opening of the first annular groove 611 is equal to the inner diameter of the opening of the mating hole 61, thereby constraining the crown spring 62 in the first annular groove 611.

[0043] Multiple contact pieces 621 extend inside the crown spring 62. In this embodiment, the contact pieces 621 are preferably formed by stamping the body of the crown spring 62. The multiple contact pieces 621 are arranged around the center of the crown spring 62 and are inclined towards the center of the crown spring 62.

[0044] A first retaining spring 51 is sleeved on the outer side of the contact needle 5, and a second retaining spring 63 is sleeved on the outer side of the contact post 6. A second annular groove is opened on the outer side of the contact needle 5 and the outer side of the contact post 6. The first retaining spring 51 is inserted into the second annular groove of the contact needle 5, and the second retaining spring 63 is inserted into the second annular groove of the contact post 6.

[0045] Furthermore, multiple spring pieces 511 extend from the outer side of the first retaining ring 51 and the outer side of the second retaining ring 63; in this embodiment, preferably, the spring pieces 511 on the first retaining ring 51 are formed by stamping the body of the first retaining ring 51, and the multiple spring pieces 511 are arranged around the center of the first retaining ring 51, with the spring pieces 511 inclined towards the outer side of the first retaining ring 51; in this embodiment, preferably, the spring pieces 511 on the second retaining ring 63 are formed by stamping the body of the second retaining ring 63, and the multiple spring pieces 511 are arranged around the center of the second retaining ring 63, with the spring pieces 511 inclined towards the outer side of the second retaining ring 63;

[0046] Furthermore, both the other end of the contact needle 5 and the other end of the contact post 6 extend with limiting portions. The diameter of the limiting portion of the contact needle 5 is larger than the diameter of the contact needle 5, and the diameter of the limiting portion of the contact post 6 is larger than the diameter of the contact post 6.

[0047] Furthermore, the inner wall of the first through hole 311 extends with a first annular step 114, which is located within the first socket 32. The contact pin 5, carrying the first retaining spring 51, passes through the center of the first annular step 114. The first annular step 114 compresses the spring piece 511 on the first retaining spring 51 until the first retaining spring 51 completely passes through the first annular step 114. Then, the spring piece 511 of the first retaining spring 51 and the limiting part of the contact pin 5 respectively abut against the two ends of the first annular step 114, limiting the contact pin 5 within the first through hole 311. The snap-fit ​​method of the contact pin 5 via the first retaining spring 51 also facilitates the installation of the contact pin 5 into the first through hole 311. The spring piece 511 of the first retaining spring 51 applies a central positioning constraint force to the contact pin 5 by abutting against the inner wall of the first through hole 311, enabling the contact pin 5 to have a micro-floating capability within the first through hole 311 and to deflect by a micro-distance.

[0048] Furthermore, the inner wall of the second through hole 411 extends with a second annular step 114, which is located within the second socket 42. The contact post 6 carries the second retaining spring 63 through the center of the second annular step 114. The second annular step 114 compresses the spring piece 511 on the second retaining spring 63 until the second retaining spring 63 completely passes through the second annular step 114. Then, the spring piece 511 of the second retaining spring 63 and the limiting part of the contact post 6 respectively abut against the two ends of the second annular step 114, limiting the contact post 6 within the second through hole 411. The snap-fit ​​method of the contact post 6 by the second retaining spring 63 also facilitates the installation of the contact post 6 into the second through hole 411. The spring piece 511 of the second retaining spring 63 applies a central positioning constraint force to the contact post 6 by abutting against the inner wall of the second through hole 411, so that the contact post 6 has a micro-floating capability within the second through hole 411 and can be offset by a micro-distance.

[0049] Please refer to Figures 1-9 .

[0050] When male connector 1 is plugged into female connector 2:

[0051] The first ferrule 3 and the second ferrule 4 are connected, and the top of the second socket 42 slides into the slot 323 of the first socket 32; the anti-foolproof protrusion 322 slides into the anti-foolproof groove 422, and the three mating posts 321 slide into the three mating slots 421 respectively, which can avoid the problem of incorrect insertion direction when the user inserts the male connector 1 and the female connector 2; the top of the second outer shell 21 is inserted into the annular step 114 of the first outer shell 11, so that the top of the second outer shell 21 touches the third sealing ring 115, and the third sealing ring 115 seals the gap between the first outer shell 11 and the second outer shell 21, preventing external moisture from entering the interior through the gap between the first outer shell 11 and the second outer shell 21; the limiter 213 is rotated at a certain angle on the second outer shell 21, so that the limit post 113 is inserted into the limit hook on the limiter 213, thereby improving the firmness of the male connector 1 inserted into the female connector 2;

[0052] One end of the contact pin 5 is inserted into the mating hole 61 of the adjacent contact post 6. The crown spring 62 inside the mating hole 61 is sleeved on the outside of the contact pin 5. The multiple contact pieces 621 on the crown spring 62 rebound with their own elasticity and touch the outside of the contact pin 5. The contact post 6 uses the rebound force of the crown spring 62 and the contact pieces 621 to connect with the contact pin 5, which solves the problem of uneven contact surface between the contact post 6 and the contact pin 5, resulting in momentary interruption of signal transmission.

[0053] By utilizing the design of slightly floating the contact pin 5 in the first through hole 311 and slightly floating the contact post 6 in the second through hole 411, when there are machining tolerances in the contact pin 5 and the contact post 6, the contact post 6 and the contact pin 5 will simultaneously perform micro-offset to compensate for the tolerances, so that the contact pin 5 and the crown spring 62 on the contact post 6 can fit more evenly.

[0054] This invention provides a connector with stable contact. When the male connector is inserted into the female connector, the first and second ferrules mate. One end of the contact pin slides into the adjacent mating hole. The crown spring in the mating hole is sleeved on the outside of the contact pin. Multiple contact pieces on the crown spring rebound with their own elasticity and touch the outside of the contact pin. The contact post uses the rebound force of the crown spring contact pieces to mate with the contact pin, solving the problem of uneven contact between the contact post and the contact pin, which leads to momentary interruption of signal transmission. Furthermore, the first and second retaining springs apply a central positioning constraint force to the contact pin and the contact post respectively through multiple spring pieces on themselves. The contact pin and the contact post have micro-floating capability in the first and second through holes respectively, and can offset by a micro-distance. When there is a machining tolerance in the contact pin and the contact post, the contact post and the contact pin simultaneously offset by a micro-distance to compensate for the tolerance, thereby allowing the crown spring on the contact pin and the contact post to fit more evenly.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A connector with stable contact, characterized in that, include: The male connector has a first insert core installed on it. The first insert core has multiple first through holes. A contact pin is provided in each of the first through holes. A first retaining spring is sleeved on the outside of the contact pin. The female connector is equipped with a second insert, which has multiple second through holes. A contact post is provided in each of the second through holes. A second retaining spring is sleeved on the outside of the contact post. A mating hole is provided at one end of the contact post, and a crown spring is snapped into the mating hole. Multiple contact pieces extend from the crown spring. Multiple spring pieces extend from the outer sides of the first and second retaining rings. The spring pieces of the first retaining ring abut against the inner wall of the first through hole, and the spring pieces of the second retaining ring abut against the inner wall of the second through hole. The first insert and the second insert are mated. One end of the contact pin is inserted into the mating hole, and the contact piece abuts against the outer side of the contact pin.

2. The connector with stable contact as described in claim 1, characterized in that, The mating hole has a first annular groove, and the crown spring is inserted into the first annular groove.

3. A connector with stable contact as described in claim 2, characterized in that, The outer side of the contact needle and the outer side of the contact post are provided with a second annular groove. The first retaining spring is inserted into the second annular groove of the contact needle, and the second retaining spring is inserted into the second annular groove of the contact post.

4. A connector with stable contact as described in claim 3, characterized in that, The first insert is composed of a first socket and a first end cap. The first through hole penetrates the first socket and the first end cap. The inner wall of the first through hole extends with a first annular step. The first annular step is located inside the first socket. The spring piece and the contact pin of the first retaining spring respectively abut against the two ends of the first annular step.

5. A connector with stable contact as described in claim 4, characterized in that, The second insert is composed of a second socket and a second end cap. The second through hole passes through the second socket and the second end cap. The inner wall of the second through hole extends with a second annular step. The second annular step is located inside the second end cap. The spring and contact post of the second snap ring respectively abut against the two ends of the second annular step.

6. A connector with stable contact as described in claim 5, characterized in that, Multiple buckles extend from both the first and second sockets. Multiple slots are provided on both the first and second end caps. The buckles of the first socket are engaged in the slots of the first end cap, and the buckles of the second socket are engaged in the slots of the second end cap.

7. A connector with stable contact as described in claim 6, characterized in that, Multiple positioning pins extend from both the first socket and the second socket. Multiple positioning holes are provided on both the first end cover and the second end cover. The positioning pins of the first socket pass through the positioning holes of the first end cover, and the positioning pins of the second socket pass through the positioning holes of the second end cover.

8. A connector with stable contact as described in claim 7, characterized in that, The first socket has a slot, one end of the contact pin is inserted into the slot, and a foolproof protrusion extends from the inner wall of the slot. The second socket has a foolproof groove, and the second socket is slidably inserted into the slot, and the foolproof protrusion is slidably inserted into the foolproof groove.

9. A connector with stable contact as described in claim 8, characterized in that, The male connector includes a first outer shell, a first insert is placed inside the first outer shell, and a first screw is provided on the outside of the first outer shell. The first screw passes through the first outer shell and is fixedly connected to the first socket. The female connector includes a second outer shell, a second insert is placed inside the second outer shell, and a second screw is provided on the outside of the second outer shell. The second screw passes through the second outer shell and is fixedly connected to the second end cap.

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