CN218385852U

CN218385852U - High-stability magnetic connector

Info

Publication number: CN218385852U
Application number: CN202222651248.7U
Authority: CN
Inventors: 伍星福; 廖翼
Original assignee: Dongguan Kerui Electronic Co ltd
Current assignee: Dongguan Kerui Electronic Co ltd
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2023-01-24
Anticipated expiration: 2032-10-08

Abstract

The utility model discloses a connector is inhaled to high stability magnetism, including annular magnet, copper pipe, gluey core and elastic contact pilotage, the outside of copper pipe is located to annular magnet cover, it inlays the inboard of locating the copper pipe to glue the core, elastic contact pilotage wears to locate in the gluey core and stretches out the copper pipe outside, elastic contact pilotage includes needle tubing and needle bar, the needle bar is from the opening cartridge of needle tubing upper end in the needle tubing, be equipped with the reset spring who makes the upper end of needle bar have the trend of stretching out the needle pipe outside all the time in the needle tubing, the lower terminal surface of needle bar is the inclined plane, be equipped with between needle bar and the reset spring can with the movable block of the inside wall contact of copper pipe, reset spring's upper end is located to movable block lid, the upper end and the inclined plane counterbalance of movable block are touched. The utility model discloses the area of contact of multiplicable elastic contact pilotage's needle bar and needle tubing improves the electric current that passes through when the connector is inhaled to magnetism and uses, prevents to inhale the unstable condition of circular telegram that the connector leads to because of area of contact changes by magnetism.

Description

High-stability magnetic connector

Technical Field

The utility model relates to a connector field technique, concretely relates to connector is inhaled to high stability magnetism.

Background

Connectors are widely used in electronic devices, and their main function is to receive power and signal transmission between two systems or devices. The connector has various forms according to the object, frequency, power and application environment, and the magnetic connector is one of them.

The magnetic connector is provided with a male connector with elastic contact pins and a female connector with contacts matched with the elastic contact pins. Current formula male connector is inhaled mainly to utilize the contact on the female connector of elastic contact pilotage conflict to realize electric connection, elastic contact pilotage is usually including needle tubing and needle bar, through set up the reset spring that makes the needle bar have the trend of stretching out the needle tubing in the needle tubing, thereby make the flexible activity of needle bar elasticity, and utilize the contact of needle bar week side surface and the inside wall of needle tubing to realize the electric connection of needle bar and needle tubing, however, because the lower extreme of needle bar is clearance fit with the inside wall of needle tubing, lead to the needle bar and only a few partly can contact with the inside wall of needle tubing at the during operation, make magnetism inhale the connector and inhale the electric current that the during operation passes through less, can not satisfy the heavy current and use, and appear easily in the use and lead to the unstable condition of circular telegram because of the area of contact change, influence user normal use.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the disappearance that prior art exists, provide a connector is inhaled to high stability magnetism, its multiplicable area of contact improves the electric current that passes through when the connector is inhaled to magnetism and uses, prevents to inhale the unstable condition of circular telegram that the connector leads to because of area of contact changes by magnetism.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a connector is inhaled to high stability magnetism, includes annular magnet, copper pipe, glues core and elastic contact pilotage, the outside of copper pipe is located to the annular magnet cover, it inlays the inboard of locating the copper pipe to glue the core, elastic contact pilotage wears to locate in gluey and stretches out the copper pipe outside, elastic contact pilotage includes needle tubing and needle bar, the needle bar is from the opening cartridge of needle tubing upper end in the needle tubing, be equipped with the reset spring that makes the upper end of needle bar have the trend of stretching out the needle pipe outside all the time in the needle tubing, the lower terminal surface of needle bar is the inclined plane, be equipped with the activity block that can contact with the inside wall contact of copper pipe between needle bar and the reset spring, reset spring's upper end is located to the activity block lid, the upper end and the inclined plane counterbalance of activity block.

As a preferable technical scheme, the lower end of the needle rod is provided with a guide part which extends outwards along the radial direction, the diameter of the guide part is matched with the inner diameter of the needle tube, and the opening of the needle tube is provided with a closing part which is matched with the guide part and prevents the needle rod from being separated from the needle tube.

As a preferred technical scheme, the movable cap is provided with a tubular part and a pushing part which is integrally connected to the upper end of the tubular part, the outer diameter of the tubular part is matched with the inner diameter of the needle tube, the outer surface of the pushing part is arranged in a hemispherical shape, the upper end of the reset spring is contained in the tubular part, and the pushing part is abutted to the inclined plane.

As a preferred technical scheme, the upper end of the copper pipe is provided with an annular conductive contact piece which extends outwards along the radial direction of the copper pipe, the rubber core is provided with a through hole matched with the elastic contact pin, the upper end of the elastic contact pin penetrates through the through hole and extends out of the end face of the annular conductive contact piece, the lower end of the rubber core is provided with an end plate which extends outwards along the radial direction of the rubber core, and the annular magnet is clamped between the annular conductive contact piece and the end plate.

As a preferred technical scheme, the lower extreme of needle tubing is equipped with first pin, the lower extreme of copper pipe is equipped with the second pin, be equipped with on the end plate and supply first pin and the second pin hole of stepping down that stretches out.

As a preferred technical scheme, the annular conductive contact piece is integrally connected with the copper pipe, and the rubber core is integrally connected with the end plate.

As a preferred technical scheme, one end of the rubber core, which is far away from the end plate, is concavely arranged in the copper pipe.

As a preferable technical scheme, the edge of the annular conductive contact piece and the edge of the end plate are flush with the peripheral side surface of the annular magnet.

Preferably, a protruding strip extending along an axial direction of the rubber core is arranged on a peripheral side of the rubber core.

As a preferred technical solution, there are two second pins.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, particularly, the movable cap which can be contacted with the inner side wall of the copper pipe is arranged between the needle rod and the reset spring, thereby the contact area between the needle rod and the needle pipe is increased by utilizing the contact between the movable cap and the inner side wall of the copper pipe, the passing current of the magnetic suction connector during working is improved, and the power-on stability of the magnetic suction connector during working is improved; the inclined plane is arranged at the lower end of the needle rod, so that the needle rod and the movable cap are inclined to a certain degree under the action of the reset spring, the contact stability of the needle rod and the movable cap with the needle tube is improved, and the condition of poor contact is avoided.

To more clearly illustrate the structural features and technical means of the present invention and the specific objects and functions achieved thereby, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:

drawings

FIG. 1 is a schematic view of an assembly structure according to an embodiment of the present invention;

FIG. 2 is an exploded view of the embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of an elastic contact pin according to an embodiment of the present invention;

fig. 4 is an exploded view of the elastic contact pin according to the embodiment of the present invention.

Description of the figures:

10. a ring magnet;

20. a copper pipe; 21. a ring-shaped conductive contact; 22. a first pin;

30. a rubber core; 31. an end plate; 32. a hole of abdication; 33. a convex strip;

40. an elastic contact pin; 41. a needle bar; 411. a bevel; 412. a guide portion; 42. a needle tube; 421. a second pin; 422. a closing-in part; 43. a return spring; 44. a movable cap; 441. a tubular portion; 442. a pushing part.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience of description and simplification of description, and do not indicate or imply that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

As shown in fig. 1-4, a high-stability magnetic connector includes a ring magnet 10, a copper tube 20, a rubber core 30 and an elastic contact pin 40, the ring magnet 10 is sleeved outside the copper tube 20, the rubber core 30 is embedded inside the copper tube 20, the elastic contact pin 40 is inserted into the rubber core 30 and extends out of the copper tube 20, the elastic contact pin 40 includes a needle tube 42 and a needle rod 41, the needle rod 41 is inserted into the needle tube 42 from an opening at the upper end of the needle tube 42, a return spring 43 is arranged in the needle tube 42 to make the upper end of the needle rod 41 always have a tendency of extending out of the needle tube 42, the lower end surface of the needle rod 41 is an inclined surface 411, a movable cap 44 capable of contacting with the inner side wall of the copper tube 20 is arranged between the needle rod 41 and the return spring 43, the movable cap 44 is covered on the upper end of the return spring 43, and the upper end of the movable cap 44 is abutted against the inclined surface 411. Copper pipe 20's upper end is equipped with the annular conductive contact 21 of its radial outside extension of edge, annular conductive contact 21 and copper pipe 20 body coupling, glue core 30 and be equipped with the through-hole with elastic contact pin 40 adaptation, elastic contact pin 40's upper end is passed the through-hole and is stretched out annular conductive contact 21's terminal surface, the lower extreme of gluing core 30 is equipped with the end plate 31 of its radial outside extension of edge, glue core 30 and end plate 31 body coupling, annular magnet 10 presss from both sides between annular conductive contact 21 and end plate 31, and the border of annular conductive contact 21 and the border of end plate 31 all with annular magnet 10's week side surface parallel and level. The lower extreme of copper pipe 20 is equipped with first pin 22, the lower extreme of needle tubing 42 is equipped with second pin 421, be equipped with on the end plate 31 and supply first pin 22 and the second pin 421 hole 32 of stepping down of stretching out. The utility model discloses in, first pin 22 is equipped with two, and two first pin 22 symmetric distributions are in the both sides of second pin 421.

Specifically, the lower end of needle shaft 41 is provided with a guide part 412 extending radially outwards, the diameter of guide part 412 is matched with the inner diameter of needle tube 42, so that the circumferential surface of guide part 412 is in fine-pitch fit with the inner side wall of needle tube 42, and the opening of needle tube 42 is provided with a binding part 422 which is matched with guide part 412 and prevents needle shaft 41 from being separated from needle tube 42. In this embodiment, the needle tube 42 is provided with a blind hole having a hollow structure, the return spring 43, the movable cap 44 and the needle rod 41 are sequentially installed into the blind hole from the opening at the upper end of the needle tube 42, and then the opening at the upper end of the needle tube 42 is closed to form a closed portion 422, thereby realizing the assembly of the elastic contact pin 40.

The utility model discloses in, movable cap 44 has tubulose portion 441 and an organic whole and connects in the top of tubulose portion 441 upper end portion 442, the external diameter of tubulose portion 441 and the internal diameter looks adaptation of needle tubing 42 guarantee to form the microspur cooperation between the week side surface of tubulose portion 441 and the inside wall of needle tubing 42. The outer surface of the pushing portion 442 is shaped like a hemisphere, the upper end of the return spring 43 is accommodated in the tubular portion 441, and the pushing portion 442 abuts against the inclined surface 411.

In order to prevent the magnetic connector from colliding with the rubber core 30 during the suction with other connectors and ensure the stable conduction of the annular conductive contact piece 21, one end of the rubber core 30 far away from the end plate 31 is recessed in the copper tube 20. In order to improve the stability of the connection structure between the rubber core 30 and the copper tube 20, a convex strip 33 extending along the axial direction of the rubber core 30 is arranged on the peripheral side of the rubber core.

To sum up, the utility model arranges the movable cap which can contact with the inner side wall of the copper tube between the needle bar and the reset spring, thereby increasing the contact area between the needle bar and the needle tube by using the contact between the movable cap and the inner side wall of the copper tube, improving the passing current of the magnetic suction connector during working, and simultaneously improving the power-on stability of the magnetic suction connector during working; the inclined plane is arranged at the lower end of the needle rod, so that the needle rod and the movable cap are inclined to a certain degree under the action of the reset spring, the contact stability of the needle rod and the movable cap with the needle tube is improved, and the condition of poor contact is avoided.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, so any modifications, equivalent replacements, improvements, etc. made to the above embodiments by the technology of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a connector is inhaled to high stability magnetism, includes annular magnet, copper pipe, glues core and elastic contact pilotage, the outside of copper pipe is located to the annular magnet cover, it inlays the inboard of locating the copper pipe to glue the core, elastic contact pilotage wears to locate in the gluey core and stretches out the copper outside of tubes, a serial communication port, elastic contact pilotage includes needle tubing, needle bar and activity block, the needle bar is from the opening cartridge of needle tubing upper end in the needle tubing, be equipped with the reset spring that makes the upper end of needle bar have the trend of stretching out the needle outside of tubes all the time in the needle tubing, the lower terminal surface of needle bar is the inclined plane, be equipped with between needle bar and the reset spring can with the activity block of the inside wall contact of copper pipe, reset spring's upper end is located to activity block lid, the upper end and the inclined plane counterbalance of activity block.

2. The connector of claim 1, wherein the needle shaft has a guide portion extending radially outward at a lower end thereof, the guide portion has a diameter corresponding to an inner diameter of the needle tube, and the needle tube has a closing portion at an opening thereof for engaging with the guide portion to prevent the needle shaft from being separated from the needle tube.

3. The connector is characterized in that the movable cap is provided with a tubular part and a pushing part which is integrally connected to the upper end of the tubular part, the outer diameter of the tubular part is matched with the inner diameter of the needle tube, the outer surface of the pushing part is in a hemispherical shape, the upper end of the return spring is accommodated in the tubular part, and the pushing part is abutted to the inclined plane.

4. The connector of claim 1, wherein the copper tube has an upper end with a ring-shaped conductive contact extending radially outward, the rubber core has a through hole adapted to the elastic contact pin, the upper end of the elastic contact pin extends out of the end surface of the ring-shaped conductive contact through the through hole, the lower end of the rubber core has an end plate extending radially outward, and the ring-shaped magnet is sandwiched between the ring-shaped conductive contact and the end plate.

5. The connector of claim 4, wherein the needle tube has a first pin at a lower end thereof, the copper tube has a second pin at a lower end thereof, and the end plate has a hole for the first pin and the second pin to extend downward.

6. The connector of claim 4, wherein the annular conductive contact is integrally connected to the copper tube, and the rubber core is integrally connected to the end plate.

7. The connector of claim 4, wherein the end of the rubber core away from the end plate is recessed in the copper tube.

8. The connector of claim 4, wherein the edges of the annular conductive contact pieces and the edges of the end plates are flush with the peripheral surface of the annular magnet.

9. The connector of claim 4, wherein the rubber core has a circumferential rib extending along an axial direction of the rubber core.

10. The connector of claim 5, wherein there are two second pins.