Connector with reduced plug-in friction

By using the top contact between the first and second contacts and the magnetic attraction connection, the problem of high friction during connector insertion and removal is solved, achieving a low-friction, robust and reliable connection.

CN224537487UActive Publication Date: 2026-07-21SHENZHEN INKOVO CONNECTION SYST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN INKOVO CONNECTION SYST CO LTD
Filing Date
2025-08-01
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing connectors cause inconvenience during insertion and removal due to excessive friction, and are prone to wear on the contacts, especially in high-density layouts or frequent insertion and removal scenarios.

Method used

The conductive method adopts a top-to-top contact between the first and second contact elements, combined with magnetic adsorption connection, to replace the traditional plug-in conductive method and reduce friction.

Benefits of technology

It effectively reduces insertion and removal friction, reduces wear on contact parts, ensures a strong and reliable connection, and improves the convenience of insertion and removal operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of connectors reducing plugging friction, including male head and female head, first plug core is equipped in male head, first plug core is equipped with slot, multiple first through holes of interval arrangement are equipped in slot, multiple first contactors are equipped in first through hole, first plug core is equipped with first magnetic piece, second plug core is equipped in female head, second plug core is equipped with second through hole corresponding to first through hole, reset assembly is equipped in second through hole, second contactor is slidably connected on reset assembly, second plug core is equipped with second magnetic piece, second plug core is accessed into slot, first magnetic piece adsorbs second magnetic piece, first contactor top touches second contactor.The utility model provides a kind of connectors reducing plugging friction, by first contactor and second contactor top touch contact realizes electric connection, replace traditional plug-in conduction mode, to reduce male head and female head plugging friction.
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Description

Technical Field

[0001] This utility model relates to the field of electrical connectors, and in particular to a connector that reduces insertion and extraction friction. Background Technology

[0002] The connectors currently available on the market are mainly composed of male and female connectors. Their conduction principle is that the pins installed on the male connector are inserted into the mating hole of the female connector, and the current is conducted by the direct physical contact between the outer wall of the pin and the inner wall of the mating hole. To ensure stable current transmission and low contact resistance, the above design requires a tight and reliable fit between the pin and the mating hole. However, this tight fit necessary for stable electrical contact inevitably leads to a large frictional force between the outer wall of the pin and the inner wall of the mating hole. This frictional force is used to firmly connect the male and female connectors. The male and female connectors designed above have the problem of high insertion and removal resistance. Users will feel significant resistance when inserting or removing the male and female connectors, making the insertion and removal of the connectors laborious and inconvenient. It is also easy to wear or even damage the pins and mating holes, resulting in a decrease in the mating accuracy of the pins and mating holes. This problem is more prominent in high-density layouts or applications that require frequent insertion and removal. Utility Model Content

[0003] The purpose of this invention is to provide a connector that reduces insertion and extraction friction. Electrical connection is achieved through top contact between the first contact and the second contact, replacing the traditional insertion and conduction method, thereby reducing the insertion and extraction friction between the male and female connectors.

[0004] The technical solution adopted by the connector for reducing insertion and extraction friction disclosed in this utility model is as follows: The device includes a male connector and a female connector. The male connector has a first insert core with a slot. The slot has multiple spaced-apart first through holes with multiple first contact elements inside each through hole. The first insert core has a first magnetic element. The female connector has a second insert core with a second through hole corresponding to the first through hole. The second through hole has a reset assembly with a second contact element slidably connected to the reset assembly. The second insert core has a second magnetic element. The second insert core is inserted into the slot, and the first magnetic element attracts the second magnetic element, with the first contact element contacting the second contact element.

[0005] As a preferred embodiment, the reset assembly includes a sleeve and a spring. The sleeve is engaged in the second through hole, the second contact is slidably connected inside the sleeve, and a connector is fixedly connected inside the sleeve. The two ends of the spring respectively abut against the second contact and the connector.

[0006] As a preferred embodiment, the inner wall of the second through hole extends with two second steps, a second limiting ring is fitted on the outer side of the sleeve, a second retaining ring extends from the second limiting ring, a second limiting part extends from the sleeve, the second contact member passes through one of the second steps, the sleeve and the second retaining ring pass through the other second step, and the second limiting part and the second retaining ring respectively abut against the two ends of the second step.

[0007] As a preferred embodiment, the inner wall of the first through hole extends with a first step, the first contact member extends with a first limiting part, the outer side of the first contact member is fitted with a first limiting ring, the first limiting ring extends with a first retaining ring, the first contact member and the first retaining ring pass through the first step, and the first limiting part and the first retaining ring respectively abut against the two ends of the first step.

[0008] As a preferred embodiment, there are two first magnetic components, which are respectively fixedly connected to both sides of the first insert. There are also two second magnetic components, which are respectively fixedly connected to both sides of the second insert.

[0009] As a preferred embodiment, the male connector further includes a first outer shell, which is sleeved on the outside of the first ferrule, and the female connector further includes a second outer shell, which is sleeved on the outside of the second ferrule.

[0010] As a preferred embodiment, both the first and second outer shells are provided with limiting members, and spring pieces extend from the limiting members. Both the first and second inserts are provided with slots, and the spring pieces are inserted into the slots for fixation.

[0011] As a preferred embodiment, both ends of the second outer shell are rotatably connected to a lever, and two hooks extend from the lever. Both sides of the first outer shell have two limiting posts extending from them, and the limiting posts can be detachably connected by engaging with the hooks.

[0012] The beneficial effects of the connector disclosed in this utility model that reduces insertion and extraction friction are: Two external wires are electrically connected to the first contact of the male connector and the reset assembly of the female connector, respectively. When the male connector is inserted into the female connector, the second ferrule is inserted into the slot of the first ferrule with a clearance fit, so that the first contact passes through the second through hole and touches the second contact. This pushes the second contact to slide on the reset assembly, and the reset assembly pushes the second contact to make tight contact with the first contact. This allows the current of one external wire to be guided to the other external wire through the first contact, the second contact, and the reset assembly. This top-contact conduction method replaces the traditional plug-in conduction method, effectively avoiding the problem of inconvenient insertion and removal caused by excessive friction between the male and female connectors, and significantly reducing the wear of the first and second contacts during the insertion and removal process. Meanwhile, when the male connector is inserted into the female connector, the first magnetic component attracts the second magnetic component, and the first ferrule is attracted to the second ferrule. This magnetic attraction replaces the traditional friction connection method, ensuring that the connection between the male and female connectors remains firm and reliable after adopting the above-mentioned top contact conduction method. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a connector for reducing insertion and extraction friction according to this utility model.

[0014] Figure 2 This is a schematic diagram of the installation of the first housing and the first ferrule of a connector for reducing insertion and extraction friction according to this utility model.

[0015] Figure 3 This is a cross-sectional view of the first ferrule of a connector that reduces insertion and extraction friction according to this utility model.

[0016] Figure 4 This is a schematic diagram of the installation of the second housing and the second ferrule of a connector for reducing insertion and extraction friction according to this utility model.

[0017] Figure 5 This is a cross-sectional view of the second ferrule of a connector that reduces insertion and extraction friction according to this utility model.

[0018] Figure 6 This is a cross-sectional view of the reset assembly of a connector for reducing insertion and extraction friction according to this utility model.

[0019] Figure 7 This is a cross-sectional view of a connector for reducing insertion and extraction friction according to this utility model. Detailed Implementation

[0020] The present invention will be further described and illustrated below with reference to specific embodiments and the accompanying drawings: Please refer to Figure 1 , Figure 2 , Figure 4 and Figure 7 .

[0021] This utility model discloses a connector for reducing insertion and extraction friction, comprising a male head 1 and a female head 2; The male connector 1 also includes a first outer shell 11, and the female connector 2 also includes a second outer shell 21. Both the first outer shell 11 and the second outer shell 21 are provided with limiting members 3. Furthermore, in this embodiment, it is preferred that there are two limiting members 3 inside the first outer shell 11. The two limiting members 3 inside the first outer shell 11 are respectively close to the two ends of the first outer shell 11, and the limiting members 3 inside the first outer shell 11 are fixed to the inner wall of the first outer shell 11 by bolts. Furthermore, in this embodiment, it is preferred that there are two limiting members 3 inside the second outer shell 21. The two limiting members 3 inside the second outer shell 21 are respectively close to the two ends of the second outer shell 21, and the limiting members 3 inside the second outer shell 21 are fixed to the inner wall of the second outer shell 21 by bolts. Furthermore, a spring piece 31 extends from the limiting member 3. In this embodiment, it is preferred that there are two spring pieces 31 on the limiting member 3, with the two spring pieces 31 respectively close to the two sides of the limiting member 3.

[0022] Two limiting posts 111 extend from both sides of the first outer shell 11, with the two limiting posts 111 located on the same side of the first outer shell 11 being close to both ends of the first outer shell 11 respectively. Furthermore, both ends of the second outer shell 21 are provided with a lever 211, both ends of which are rotatably connected to the second outer shell 21. The two connection points between the lever 211 and the second outer shell 21 are located on both sides of the second outer shell 21, and two hooks extend from the middle of the lever 211. Furthermore, a sealing ring 212 is fitted around the edge of the second outer casing 21; When the male connector 1 is inserted into the female connector 2, by rotating the two levers 211, the middle part of the levers 211 is brought close to the first housing 11, and the limiting post 111 is engaged in the adjacent hook for detachable connection. The levers 211 constrain the male connector 1 to the female connector 2, improving the firmness of the connection. At the same time, the edge of the first housing 11 touches the sealing ring 212, which is used to seal the gap between the first housing 11 and the second housing 21, preventing moisture and dust from entering from the gap between the first housing 11 and the second housing 21 and affecting the conduction of current. When it is necessary to disconnect the male connector 1 from the female connector 2, by rotating the two levers 211, the middle part of the levers 211 is moved away from the first housing 11, and the limiting post 111 is disengaged from the hook, releasing the constraint of the levers 211 on the male connector 1, allowing the male connector 1 to be pulled off the female connector 2.

[0023] Please refer to Figures 2-7 .

[0024] The male connector 1 has a first insert 12 inside, and the female connector 2 has a second insert 22 inside. Both the first insert 12 and the second insert 22 have a slot 221. Furthermore, in this embodiment, the first insert 12 preferably has four slots 221, with each of the four slots 221 located at one end of the first insert 12. Furthermore, in this embodiment, the second insert 22 preferably has four slots 221, with each of the four slots 221 located at one end of the second insert 22.

[0025] The bottom of the first insert 12 is provided with a slot 121, and the bottom of the slot 121 is provided with a plurality of first through holes 122 arranged at intervals. The first through holes 122 extend from the top of the first insert 12. In this embodiment, the plurality of first through holes 122 are arranged in two rows. The inner wall of the first through hole 122 extends with a first step 124. In this embodiment, the first step 124 is preferably annular. Furthermore, a plurality of anti-foolproof grooves 123 are provided on the inner wall of the slot 121, and the anti-foolproof grooves 123 are parallel to the first through hole 122. Furthermore, a plurality of first contact members 4 are provided in the first through hole 122, and a first limiting part 41 extends from one end of the first contact member 4. The diameter of the first limiting part 41 is larger than the diameter of the first contact member 4, and the diameter of the first limiting part 41 is larger than the hole diameter at the center of the first step 124. A first limiting ring 42 is sleeved on the outside of the first contact member 4, and a plurality of first retaining rings 421 arranged at intervals extend from the first limiting ring 42. During installation, the first contact 4 is inserted into the first through hole 122 from the top of the first insert 12. When the other end of the first contact 4 is pushed through the first step 124, the first step 124 compresses the first retaining spring 421. After the first retaining spring 421 passes through the first step 124, it springs back and unfolds, so that the first limiting part 41 and the first retaining spring 421 respectively abut against the two ends of the first step 124, thus constraining the first contact 4 within the first through hole 122.

[0026] The first insert 12 is provided with a first magnetic element 125. In this embodiment, it is preferred that there are two first magnetic elements 125, and the two first magnetic elements 125 are fixedly connected to the two sides of the first insert 12 respectively.

[0027] The first outer shell 11 is sleeved on the outside of the first insert 12. The two limiting members 3 inside the first outer shell 11 are located at the two ends of the first insert 12 respectively. The spring piece 31 inside the first outer shell 11 is fixed in the slot 221 on the adjacent first insert 12. The first outer shell 11 constrains the first insert 12 inside the first outer shell 11 through the limiting members 3.

[0028] The second insert 22 has a second through hole 222 corresponding to the first through hole 122. The second through hole 222 is parallel to the first through hole 122 and passes through the second insert 22, so that the two ends of the second through hole 222 are located at the top and bottom of the second insert 22, respectively. The inner wall of the second through hole 222 extends with two second steps 224, which are arranged at intervals. In this embodiment, the second steps 224 are preferably annular. Furthermore, a foolproof block 223 corresponding to the foolproof groove 123 extends from the outer side of the second ferrule 22, and the foolproof block 223 is close to the top of the second ferrule 22. Furthermore, a reset component 5 is provided in the second through hole 222. A second contact 51 is slidably connected to the reset component 5. The reset component 5 includes a sleeve 52 and a spring 521. One end of the sleeve 52 is provided with a constriction structure. An annular limiting groove is opened on the inner wall of the sleeve 52. The limiting groove is close to the other end of the sleeve 52. Furthermore, the second contact 51 is slidably connected within the sleeve 52, and a connecting member 53 is fixedly connected within the sleeve 52. Preferably, in this embodiment, both the middle portion of the second contact 51 and the middle portion of the connecting member 53 extend with an annular limiting block 511. The inner diameter of the limiting block 511 of the second contact 51 is smaller than the inner diameter of the constriction structure of the sleeve 52. One end of the second contact 51 protrudes from the constriction structure of the sleeve 52, and the limiting block 511 of the second contact 51 abuts against the constriction structure of the sleeve 52. The constriction structure of sleeve 52 constrains the second contact member 51 to slide within sleeve 52; the limiting block 511 of connector 53 is engaged in the limiting groove, which constrains connector 53 to a fixed position within sleeve 52; spring 521 is sleeved on the outside of the second contact member 51 and connector 53, and is located between the second contact member 51 and connector 53, with both ends of spring 521 abutting against the second contact member 51 and connector 53 respectively; a second limiting part 522 extends from the outside of the other end of sleeve 52. Furthermore, the diameter of the sleeve 52 is larger than the inner diameter of one of the second steps 224, the diameter of the sleeve 52 is smaller than the inner diameter of the other second step 224, and the diameter of the second limiting part 522 is larger than the inner diameter of the other second step 224; a second limiting ring 54 is sleeved on the outer side of the sleeve 52, and multiple second retaining rings 541 are spaced apart on the second limiting ring 54. During installation, the sleeve 52 is inserted into the second through hole 222 from the bottom of the second insert 22. When one end of the sleeve 52 is pushed through another second step 224, the other second step 224 compresses the second retaining spring 541. After the second retaining spring 541 passes through the other second step 224, it springs back and unfolds, so that the second limiting part 522 and the second retaining spring 541 respectively abut against the two ends of the other second step 224, constraining the sleeve 52 in the second through hole 222. One end of the second contact member 51 passes through one of the second steps 224.

[0029] The second insert 22 is provided with a second magnetic element 225. In this embodiment, it is preferred that there are two second magnetic elements 225, and the two second magnetic elements 225 are fixedly connected to the two sides of the second insert 22 respectively.

[0030] The second outer shell 21 is sleeved on the outside of the second insert 22. The two limiting members 3 inside the second outer shell 21 are located at the two ends of the second insert 22 respectively. The spring piece 31 inside the second outer shell 21 is fixed in the slot 221 on the adjacent second insert 22. The second outer shell 21 constrains the second insert 22 inside the second outer shell 21 through the limiting members 3.

[0031] Please refer to Figures 1-7 .

[0032] The two external wires are electrically connected to the first limiting part 41 of the male connector 1 and the connector 53 of the female connector 2, respectively. After assembling the male connector 1 and the female connector 2, the male connector 1 is inserted into the female connector 2. The second ferrule 22 is inserted into the slot 121 of the first ferrule 12 through a gap fit. The anti-misfit block 223 slides into the adjacent anti-misfit groove 123 to prevent the user from assembling the male connector 1 and the female connector 2 in the wrong direction. The first magnetic component 125 attracts the second magnetic component 225, and the first ferrule 12 is attracted to the second ferrule 22 by the attraction force generated by the attraction of the first magnetic component 125. This magnetic attraction connection method replaces the traditional connection method that uses friction, ensuring that the connection between the male connector 1 and the female connector 2 is still firm and reliable after the top contact conduction method is adopted. Furthermore, by moving the lever 211, the limiting post 111 is locked into the adjacent hook, which further improves the firmness of the connection between the male connector 1 and the female connector 2. The first contact 4 penetrates the second through hole 222 and touches the second contact 51, pushing the second contact 51 to slide and compress the spring 521 within the sleeve 52. Since the attraction force generated by the first magnetic element 125 adsorbing the second magnetic element 225 is greater than the rebound force of the spring 521, the second insert 22 touches the bottom of the slot 121 under the attraction force of the first magnetic element 125 and the first magnetic element 125. The spring 521 then pushes the second contact 51 to make tight contact with the first contact 4, allowing the current of one section of the external wire to be guided to the other section of the external wire through the first contact 4, the second contact 51 and the reset component 5. This top-contact conduction method replaces the traditional plug-in conduction, effectively avoiding the problem of inconvenient insertion and removal caused by excessive friction between the male head 1 and the female head 2, and significantly reducing the wear of the first contact 4 and the second contact 51 during the insertion and removal process.

[0033] When it is necessary to disconnect the male connector 1 from the female connector 2, first move the lever 211 to disengage the limiting post 111 from the hook, releasing the lever 211 from the male connector 1. Then pull the female connector 2 away from the male connector 1, so that the second insert 22 slides out of the slot 121 of the first insert 12. At the same time, the first contact 4 disconnects from the second contact 51, and the second contact 51 is reset under the push of the spring 521.

[0034] This invention provides a connector that reduces insertion and removal friction. Two external wires are electrically connected to the first contact of the male connector and the reset assembly of the female connector, respectively. When the male connector is inserted into the female connector, the second ferrule is inserted into the slot of the first ferrule with a clearance fit, causing the first contact to pass through the second through hole and touch the second contact. This pushes the second contact to slide on the reset assembly, which in turn pushes the second contact to make tight contact with the first contact. This allows the current of one external wire to be guided to the other external wire through the first contact, the second contact, and the reset assembly. This top-contact conduction method replaces the traditional plug-in conduction method, effectively avoiding the problem of inconvenient insertion and removal caused by excessive friction between the male and female connectors, and significantly reducing the wear of the first and second contacts during the insertion and removal process. Meanwhile, when the male connector is inserted into the female connector, the first magnetic component attracts the second magnetic component, causing the first ferrule to be attracted onto the second ferrule. This magnetic attraction replaces the traditional friction connection method, ensuring that the connection between the male and female connectors remains firm and reliable after adopting the above-mentioned top-contact conduction method.

[0035] 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 for reducing mating and pulling friction, characterized in that, include: The male connector has a first insert core inside, a slot is opened on the first insert core, a plurality of first through holes arranged at intervals are opened in the slot, a plurality of first contact elements are provided in the first through holes, and a first magnetic element is provided on the first insert core. The female connector has a second insert core inside, and the second insert core has a second through hole corresponding to the first through hole. The second through hole has a reset component inside, and the reset component is slidably connected to a second contact element. The second insert core has a second magnetic element. The second insert is inserted into the slot, the first magnetic component attracts the second magnetic component, and the first contact component touches the second contact component.

2. The connector for reducing insertion and extraction friction as described in claim 1, characterized in that, The reset assembly includes a sleeve and a spring. The sleeve is snapped into the second through hole, the second contact is slidably connected inside the sleeve, and a connector is fixedly connected inside the sleeve. The two ends of the spring respectively abut against the second contact and the connector.

3. The connector for reducing insertion and extraction friction as described in claim 2, characterized in that, The inner wall of the second through hole extends into two second steps. A second limiting ring is fitted on the outer side of the sleeve. A second retaining ring extends from the second limiting ring. A second limiting part extends from the sleeve. The second contact member passes through one of the second steps. The sleeve and the second retaining ring pass through the other second step. The second limiting part and the second retaining ring respectively abut against the two ends of the second step.

4. A connector for reducing insertion and extraction friction as described in claim 3, characterized in that, The inner wall of the first through hole extends with a first step, the first contact member extends with a first limiting part, the outer side of the first contact member is fitted with a first limiting ring, the first limiting ring extends with a first retaining ring, the first contact member and the first retaining ring pass through the first step, and the first limiting part and the first retaining ring respectively abut against the two ends of the first step.

5. A connector for reducing insertion and extraction friction as described in claim 1, characterized in that, There are two first magnetic components, which are fixedly connected to both sides of the first insert. There are also two second magnetic components, which are fixedly connected to both sides of the second insert.

6. A connector for reducing mating friction as described in any one of claims 1, 4, or 5, characterized in that, The male connector also includes a first outer shell, which is sleeved on the outside of the first ferrule, and the female connector also includes a second outer shell, which is sleeved on the outside of the second ferrule.

7. A connector for reducing insertion and extraction friction as described in claim 6, characterized in that, Both the first and second outer shells are provided with limiting members, and spring pieces extend from the limiting members. Both the first and second inserts are provided with slots, and the spring pieces are inserted into the slots for fixation.

8. A connector for reducing insertion and extraction friction as described in claim 7, characterized in that, Both ends of the second outer shell are rotatably connected to a lever, and two hooks extend from the lever. Both sides of the first outer shell have two limiting posts that can be detachably connected by engaging the hooks.