CN110752483A

CN110752483A - On-off controllable electric connector and on-off control method

Info

Publication number: CN110752483A
Application number: CN201911060072.4A
Authority: CN
Inventors: 鄢京; 栾伟; 唐鸿飞; 鄢春艳
Original assignee: Xiamen Ding Core Technology Co Ltd
Current assignee: Xiamen Ding Core Technology Co Ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-02-04
Anticipated expiration: 2039-11-01
Also published as: CN110752483B

Abstract

The invention discloses an on-off controllable electric connector and an on-off control method, belonging to the technical field of electric connectors and solving the problem of reliability of on-off control.

Description

On-off controllable electric connector and on-off control method

Technical Field

The present invention relates to the field of electrical connectors, and more particularly, to an electrical connector with on/off control.

Background

Electrical connectors are referred to in different specific fields and are generally dedicated. The discussion in the background of the invention is primarily directed to circular electrical connectors, also referred to as circular connectors, which are a type of connector that is cylindrical in basic configuration and has a circular mating face. Among the interconnection categories, belong to category 5 for interconnection between devices. Broadly speaking, it includes low frequency circular connectors, radio frequency coaxial connectors, audio connectors, and the like. The cylindrical structure of the circular connector is naturally sturdy and has a higher strength than any other shape.

The products on the market are also many, and all have respective application backgrounds.

At present, in addition to maintaining reliable connection performance in transmission and processing of electrical signals, reliable disconnection of the physical connection structure is also required.

Therefore, the need to control the on/off of the existing electrical connector is needed to be solved.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. In view of the above, the present invention is directed to an electrical connector with on/off control, which has the advantages of high efficiency, reliability and repeatability.

In order to solve the technical problems, the technical scheme of the invention is as follows: an electric connector with controllable on-off comprises a male plug and a female socket, wherein the male plug is in plug-in fit with the female socket, the male plug comprises a threaded seat, a conductive needle and an air injection needle, the conductive needle and the air injection needle are fixed in the threaded seat, the threaded seat is provided with a concave cavity, the male plug is matched with the shape of the concave cavity, a plurality of needle grooves for the plug-in connection of the conductive needle and the air injection needle are formed in the female socket, and the rear end of the conductive needle is a wiring end;

the bottom of the female socket is a piston end, a piston barrel is sleeved outside the female socket, and the female socket and the piston barrel are in sliding fit;

the piston barrel is further connected with the male plug in a locking, sealing and matching mode, wherein the cavity forms a sealed space through the threaded seat after the male plug is connected with the female socket in an inserting mode, and the air injection needle is connected with the air source control device through the air pipe.

As specific embodiments of the present invention, the following may be preferred: the piston end is sleeved with a plurality of special-shaped sealing rings, the sealing rings are arranged on the mounting groove of the piston end, the sealing rings are hollow ring structures, the outer surfaces of the sealing rings are annular bulges, balls are filled in the cavities of the sealing rings, and the sealing rings are kept to be in rolling seal when in sliding fit.

As specific embodiments of the present invention, the following may be preferred: the edge of the piston barrel is provided with a flange, a thread ring is sleeved on the flange, the thread ring is in thread fit with the thread seat and tensions the piston barrel, and the front end face of the female socket is provided with a sealing face for sealing a needle groove of the air injection needle.

As specific embodiments of the present invention, the following may be preferred: the tail part of the piston barrel is provided with a movable cavity for movably connecting a lead, and the piston barrel is provided with an air hole communicated with the outside.

As specific embodiments of the present invention, the following may be preferred: the air source control device comprises a micro positive-pressure air pump, a micro negative-pressure air pump and a control switching air valve which are connected with each other through an air pipe, wherein the control switching air valve controls the micro positive-pressure air pump to provide positive pressure to push the female socket to retreat, and controls the switching air valve to further control the micro negative-pressure air pump to provide negative pressure to push the female socket to advance.

As specific embodiments of the present invention, the following may be preferred: the inner wall of the male plug is provided with a positioning guide strip, and the side wall of the female socket is provided with a positioning guide groove matched with the positioning guide strip.

As specific embodiments of the present invention, the following may be preferred: the length of the air injection needle and the corresponding needle groove is larger than that of the conductive needle and the rest needle grooves.

As specific embodiments of the present invention, the following may be preferred: the conductive pins are distributed in an annular shape at equal intervals, and the air injection pins are arranged on the central line of the male plug.

In addition, the method for controlling the on-off of the electric connector comprises the following steps: butting the male plug and the female socket, and then fixedly connecting the male plug and the female socket through a piston barrel to form a closed cavity;

step two: the tail part of the air pipe of the air injection needle is connected with an air source control device, the male plug and the female socket are kept separated when the air source control device provides positive pressure, and the male plug and the female socket are kept attracted and spliced when the air source control device provides negative pressure.

The technical effects of the invention are mainly reflected in the following aspects:

1. the connecting structure is reliable, the operation steps are simple and convenient, and the control is easy;

2. the work is reliable and stable, and safety accidents are not easy to occur;

3. the anti-interference ability is strong, can realize the automation, and data communication can obtain the guarantee.

Drawings

FIG. 1 is a schematic diagram of a three-dimensional mechanism in an embodiment;

FIG. 2 is a structural sectional view of a seal ring in the embodiment;

FIG. 3 is a structural cross-sectional view of the seal ring;

FIG. 4 is a block diagram of an embodiment of an air supply control device;

FIG. 5 is a structural half-sectional view;

FIG. 6 is a first state diagram of the structure of the embodiment;

FIG. 7 is a second state diagram of the structure of the embodiment.

Reference numerals: 1. a male plug; 11. a threaded seat; 12. a conductive pin; 13. an air injection needle; 14. a concave cavity; 2. a female socket; 21. a needle groove; 22. a piston end; 23. mounting grooves; 24. a sealing surface; 3. a piston barrel; 31. flanging; 32. a movable cavity; 33. air holes; 4. a seal ring; 41. an annular projection; 42. a ball bearing; 5. an air source control device; 51. a miniature positive pressure air pump; 52. a miniature negative pressure air pump; 53. controlling a switching air valve; 6. a terminal; 7. a threaded ring; 81. positioning the guide strip; 82. and positioning the guide groove.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used for explaining the present invention so that the technical solutions of the present invention can be more easily understood and appreciated, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

In the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected or detachably connected; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example (b):

an on-off controllable electrical connector, as shown in fig. 1, comprises a male plug 1 and a female socket 2. The male plug 1 and the female socket 2 are in plug-in fit. The male plug 1 and the female socket 2 are mainly made of insulating materials such as rubber, plastic and the like. The male plug 1 comprises a threaded seat 11, a conductive needle 12 fixed in the threaded seat 11 and an air injection needle 13. The conductive needle 12 is made of copper, the air injection needle 13 is made of reinforced plastic or stainless steel or aluminum alloy, and the air injection needle 13 is communicated with the front and the back. The threaded seat 11 is provided with a cavity 14, the male plug 1 is matched with the shape of the cavity 14, a plurality of pin grooves 21 for the insertion connection of the conductive pins 12 and the air injection pins 13 are arranged on the male plug 1, the wiring ends 6 are arranged in the pin grooves 21, and the rear ends of the conductive pins 12 are also provided with the wiring ends 6. The two terminals 6 are connected with the outside through wires. The threaded seat 11 is made of insulating rubber and is spliced with the conductive needle 12 and the air injection needle 13 into a whole in a hot melting mode, and the joint is completely closed and has no fine seam.

Referring to fig. 1 and 5, the bottom of the female socket 2 is a piston end 22, the piston barrel 3 is sleeved outside the female socket 2, and the female socket 2 and the piston barrel 3 are in sliding fit. The edge of the piston barrel 3 is provided with a flange 31, the flange 31 is sleeved with a threaded ring 7, the threaded ring 7 is in threaded fit with the threaded seat 11 and tensions the piston barrel 3, and the front end face of the female socket 2 is provided with a sealing surface 24. The sealing surface 24 may seal the needle groove 21 of the gas injection needle 13 (when the male plug 1 and the female socket 2 are tightly fitted).

Specifically, as shown in fig. 6, a plurality of special-shaped seal rings 4 are sleeved on the piston end 22, the seal rings 4 are arranged on the mounting groove 23 of the piston end 22, referring to the seal rings 4 shown in fig. 2 and 3, the seal rings 4 are hollow ring structures, the outer surfaces of the seal rings 4 are annular protrusions 41, and the seal rings 4 are filled with balls 42 in the hollow cavities. The balls 42 are steel ball structures. The sealing ring 4 can adopt other "O" shaped sealing rings 4, and the "O" shaped sealing ring 4 and the special-shaped sealing ring 4 are combined or used independently in the embodiment. The structure of the sealing ring 4 shown in fig. 2 and 3 realizes rolling seal in the scheme, and the abrasion of the sealing ring 4 can be greatly reduced. The design requirements have been met for sealing requirements. Rolling seal, i.e. the seal ring 4 itself rolls. It is a design feature to change the sliding seal to a rolling seal. In this scheme, because the structural style of roll seal can improve the life of sealing washer 4, also make whole on-off's control obtain reliable support and guarantee equally, can help the improvement of security performance ability. The same this scheme is used and can not adopt special-shaped sealing washer 4, but the preferred scheme is that the sealing washer 4 of this scheme of adoption realizes sealedly.

Referring to fig. 6 and 7, the piston barrel 3 is also connected with the male plug 1 in a locking and sealing matching way, wherein a sealed space is formed in the cavity 14 after the male plug 1 and the female socket 2 are plugged. Due to the presence of this sealed space, it is possible to control the movement of the female socket 2 using the change of the air pressure.

The tail part of the piston barrel 3 is provided with a movable cavity 32 for movably connecting a lead, and the piston barrel 3 is provided with an air hole 33 communicated with the outside.

Referring to fig. 4 and 5, the air injection needle 13 is connected to the air supply control device 5 through an air pipe. The air supply control device 5 includes a micro positive pressure air pump 51, a micro negative pressure air pump 52, and a control switching air valve 53 connected to each other through an air pipe. Input and output are nitrogen. Wherein, the control switching air valve 53 controls the micro positive pressure air pump 51 to provide positive pressure to push the female socket 2 to move backwards, and the control switching air valve 53 also controls the micro negative pressure air pump 52 to provide negative pressure to push the female socket 2 to move forwards. The control switching air valve 53 may be specifically an electromagnetic valve, and may be connected to an external controller for control. The air pump may be: the DC miniature air pump and the miniature vacuum pump cover 0-60L/min, negative pressure 0-0.095MPa, positive pressure 0-0.18MPa, and 400-5000 hr, and features low power consumption, small size and large flow rate. The mini-type air pump of GminiPA series (the mini-pump has small volume, such as large thumb, small current, low power consumption, small noise, two mounting holes, corrosion-resistant gas and ozone gas, is suitable for a mini-pump-suction type analyzer, a gas sampler, a medical instrument, a beauty instrument and the like, and the power consumption is lower in the pumps of the same type). The pressure control may be performed by using a mixed gas of nitrogen and carbon dioxide. The mixed gas may be stored in a gas tank.

The inner wall of the male plug 1 is provided with a positioning guide strip 81, and the side wall of the female socket 2 is provided with a positioning guide groove 82 matched with the positioning guide strip 81. The moving reliability and stability of the female socket 2 are improved. The length of the air injection needle 13 and the corresponding needle groove 21 is greater than that of the conductive needle 12 and the remaining needle grooves 21. The stability of the movement is further improved, and the guiding capability is also provided when the two are separated. The above-mentioned separation is not complete separation, which means that the male plug 1 and the female socket 2 are separated, but the whole is connected by the screw ring 7, and the inside is still a sealed space, which is not easily contacted with the outside air, especially oxygen, thereby preventing electric leakage and further improving safety.

The conductive pins 12 are distributed in an annular shape at equal intervals, and the air injection pins 13 are arranged on the central line of the male plug 1. The electrical performance is effectively improved, and the electromagnetic interference can be reduced.

From the above, it can be seen that: based on the electric connector structure, an on-off control method is adopted.

The method comprises the following steps: the male plug 1 and the female socket 2 are butted, and then the male plug and the female socket are fixedly connected through the piston barrel 3 to form a closed cavity 14;

step two: the tail part of the air pipe of the air injection needle 13 is connected with an air source control device 5, the male plug 1 and the female socket 2 are kept to be separated when the air source control device 5 provides positive pressure, and the male plug 1 and the female socket 2 are kept to be attracted and spliced when the air source control device 5 provides negative pressure.

In conclusion, the structure and the control method of the scheme utilize positive and negative pressure to realize on-off control, reduce electromagnetic interference and improve working reliability and stability. The operation is simple and convenient, and the control is easy.

According to the structure, the air pressure control electric connector is adopted to realize on-off control, electrical faults are not prone to occurring in the control process, the adopted control gas is nitrogen, the air is not in contact with the inside and the outside in the on-off process, the inside and the outside are in a sealed space, the air pressure is adjusted by filling nitrogen and drawing away the nitrogen, and therefore faults are not prone to occurring in the space in which the on-off contacts. In addition, the mechanical on-off mode of the air pressure control circuit can effectively avoid electromagnetic interference, so that the scheme is the most prominent improvement. To explain further: for example, in the prior art, a relay is used to control the on/off of a circuit, and in comparison, a plurality of relays or a plurality of contacts are required for controlling a plurality of circuits by the relay, and at this time, the current for controlling the relay generates a magnetic field which interferes with the information transmission of the on/off signal controlled by the relay. Therefore, in contrast, the technical solution of the present application has outstanding substantial features and significant progress in terms of the objectives to be solved and achieved.

The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.

Claims

1. An electric connector with controllable on-off comprises a male plug and a female socket, wherein the male plug is in plug-in fit with the female socket;

2. The on-off controllable electrical connector as recited in claim 1, wherein said piston end is sleeved with a plurality of shaped sealing rings, said sealing rings are disposed on the mounting groove of the piston end, said sealing rings are hollow ring structures, the outer surface of the sealing rings is annular protrusion, the sealing rings are filled with balls in the hollow, and wherein the sealing rings maintain rolling seal during sliding fit.

3. The on-off controllable electrical connector as claimed in claim 1, wherein the edge of the piston barrel is provided with a flange, the flange is sleeved with a threaded ring, the threaded ring is in threaded fit with the threaded seat and tensions the piston barrel, and the front end face of the female socket is provided with a sealing surface for sealing the needle groove of the air injection needle.

4. The on-off controllable electrical connector as recited in claim 2, wherein said barrel has a cavity at the end for the wire to be connected, and said barrel has an air hole for communicating with the outside.

5. The on-off controllable electrical connector according to claim 4, wherein said air source control device comprises a micro positive pressure air pump, a micro negative pressure air pump, and a control switching air valve connected to each other through an air pipe, wherein the control switching air valve controls the micro positive pressure air pump to provide positive pressure to push the female socket backward, and the control switching air valve also controls the micro negative pressure air pump to provide negative pressure to push the female socket forward.

6. The on-off controllable electrical connector as recited in claim 1, wherein said male plug has a positioning guide strip on an inner wall thereof, and said female socket has a positioning guide groove on a side wall thereof for engaging said positioning guide strip.

7. The on-off controllable electrical connector of claim 4, wherein said air-blast pins and corresponding pin slots are longer than the length of the conductive pins and the remaining pin slots.

8. The on-off controllable electrical connector as recited in claim 4, wherein said conductive pins are circumferentially equally spaced and said air injection pins are disposed on a centerline of said male plug.

9. A method for on-off controlling an electrical connector according to any one of claims 1-8, characterized by the steps of: butting the male plug and the female socket, and then fixedly connecting the male plug and the female socket through a piston barrel to form a closed cavity;