CN110611226A

CN110611226A - Connector and plug thereof

Info

Publication number: CN110611226A
Application number: CN201811582681.1A
Authority: CN
Inventors: 谷天赐; 李向辉; 尚中选; 张智宇
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2018-09-30
Filing date: 2018-12-24
Publication date: 2019-12-24
Anticipated expiration: 2038-12-24
Also published as: CN110611226B

Abstract

The invention relates to the technical field of connector devices, in particular to a connector and a plug thereof. If the plug and the socket are in the process of inserting and matching, an inclined angle which does not accord with the requirement of the set angle exists, the anti-inclined inserting recognition body can be directly matched with the locking hook in a blocking mode to limit the locking hook to rotate, when an operator rotates the rotating shaft, the rotating shaft cannot rotate or cannot smoothly rotate, feedback can be directly given to the operator, the operator can realize that the locking hook cannot rotate, namely the locking hook is limited by the anti-inclined inserting recognition body, the inserting angle of the plug and the socket is adjusted again, and the problem of safety accidents caused by poor conduction or incapability of conduction of a contact due to the fact that the plug and the socket are directly inserted and connected is avoided.

Description

Connector and plug thereof

Technical Field

The invention relates to the technical field of connector devices, in particular to a connector and a plug thereof.

Background

With the continuous development of the technology, the number of power transmission circuits in the electric connector is continuously increased, and for the connector which realizes the conductive connection by the contact deformation of the conductive contact pieces in the plug and the socket, the insertion resistance of the plug and the socket in the mutual opposite insertion process is also increased.

In order to reduce or eliminate the insertion resistance of the connector during the mating process, the technical proposal of using a power assisting structure to make the conductive contact piece deform and then mate is proposed by the technical proposal, so as to reduce or even reduce the insertion force to zero. If application publication is CN108429033A, a headstock subassembly and socket that application publication date is 2018.08.21's patent application discloses, in this socket, it is equipped with the pivot to rotate, set up the latch hook in the pivot, the latch hook has the hook groove, and be fixed with the lockpin on the plug of headstock subassembly correspondingly, the pivot can drive the hook groove after rotating and hook, and draw the lockpin towards the socket direction, be provided with the elastic component between the opposite face of plug and socket, the elastic component offers the effort of plug and socket back of the body direction mutually when the latch pin is hooked and drawn towards the socket direction at the hook groove, can guarantee like this when lockpin and hook groove hook locking, prop each other tightly all the time between the two, draw a shore through such a hook and realized the plug, the reciprocal anchorage of socket, locking is comparatively reliable. One side of the conductive contact piece installed in the socket is provided with an insertion space for the adaptive contact piece on the plug to extend into, an eccentric pushing surface used for pushing the conductive contact piece in the socket is arranged on or relatively fixed on the rotating shaft, and the conductive contact piece can be pushed into the insertion space through the eccentric pushing surface to be contacted with the adaptive contact piece or pushed out from the insertion space through overcoming the elasticity of the conductive contact piece through the eccentric pushing surface to open the insertion space when the rotating shaft rotates. That is, the conductive contact in the socket is naturally positioned at one side of the insertion space, along with the insertion of the plug, the adaptive contact on the socket extends into the insertion space, and then the conductive contact is pressed on the adaptive contact through the eccentric push surface on the rotating shaft by rotating the rotating shaft, so that the conduction of the contact in the head seat can be realized; or the conductive contact in the socket can be positioned in the inserting space in a natural state, the rotating shaft rotates before the plug is inserted, the adaptive contact on the rotating shaft extends into the inserting space, then the rotating shaft rotates to ensure that the eccentric pushing surface does not push the conductive contact, and the conductive contact restores to the natural state under the self elastic capacity and is contacted with the adaptive contact in the inserting space. In the two modes, the insertion force of the adaptive contact pieces on the plug is lower or even zero in the process of inserting into the inserting space.

However, when the plug and the socket in the header assembly are plugged into each other, and the inclination angle between the plug and the socket is greater than the set angle, after the rotating shaft is rotated by an operator, the hook groove on the rotating shaft can only purchase the lock pin at one end of the socket, and the lock pin at the other end cannot be contacted with or poorly contacted with the hook groove at the side because of the position deviation, so that the lock pin cannot be matched in place.

Disclosure of Invention

The invention aims to provide a plug, which can solve the problem that the conduction of a contact piece is influenced by inclined insertion between the plug and a socket in the prior art; the invention also aims to provide a connector using the plug, which can ensure that contact pieces in the connector are normally conducted when the connector is used.

In order to achieve the purpose, the plug adopts the following technical scheme:

the plug comprises a plug shell and a plug contact element, wherein at least two positions on the periphery of the plug shell are provided with at least one lock pin at each position, the lock pins extend towards the periphery of the plug shell and are used for being matched with lock hooks on an adaptive socket, a cantilever end of at least one lock pin on at least one position on the plug shell is provided with an anti-oblique insertion identification body, the anti-oblique insertion identification body is positioned at one end or one end of the lock pin far away from the shell, and when the inclination angle of the plug and the adaptive socket relative to the adaptive socket in the insertion process is larger than a set angle, the lock hooks on the adaptive socket can be stopped from rotating.

The beneficial effects are that: the oblique insertion prevention recognition body is arranged at one end, far away from the shell, of the lock pin, if an oblique angle which does not meet the requirement of a set angle exists in the process of inserting and matching the plug and the socket, the oblique insertion prevention recognition body can be directly in blocking and matching with the corresponding lock hook to limit the rotation of the lock hook, when an operator rotates the rotating shaft, the rotating shaft cannot rotate or cannot smoothly rotate, the feedback can be directly given to the operator, the operator can realize that the lock hook cannot rotate, namely the lock hook is limited by the oblique insertion prevention recognition body, the inserting angle of the plug and the socket is adjusted again, and the problem that safety accidents are caused due to poor conduction or incapability of conduction of a contact because the plug and the socket are directly inserted and connected is avoided.

Further, the distance between the oblique insertion preventing identification body and the corresponding side of the plug shell is equal to the thickness of a lock hook of a socket matched with the oblique insertion preventing identification body.

The beneficial effects are that: the distance between the oblique-insertion-prevention recognition body and the corresponding side of the plug shell is set to be the thickness of the lock hook, and only when the plug is inserted into the socket at a completely correct angle, the distance between the oblique-insertion-prevention recognition body and the corresponding side of the shell can be used for the lock hook to enter, so that the recognition accuracy of the oblique-insertion-prevention recognition body is improved.

Furthermore, the plug shell is a rectangular shell, the two opposite sides of the plug shell are respectively provided with the lock pins, the number of the lock pins at each position is two, the positions of the two lock pins matched with the corresponding lock hooks are staggered along the axial direction, and the anti-oblique insertion recognition body is arranged at one end of one lock pin which is relatively close to the inner side of the lock hook matched position or one end of the lock pin.

The beneficial effects are that: the anti-oblique-insertion recognition body is arranged on only one lock pin in the plug, the overall structure of the plug can be simplified, and in order to ensure that the anti-oblique-insertion recognition body works normally, the positions of the two lock pins are arranged in a staggered mode, so that the recognition accuracy of the anti-oblique-insertion recognition body is improved.

Furthermore, the oblique insertion preventing identification body is formed by a protrusion on the plug shell along the insertion direction of the plug.

The beneficial effects are that: the oblique insertion preventing identification body is formed by protruding a part of the plug shell, so that the strength of the plug shell can be improved, and the production and assembly are facilitated.

Furthermore, the bulge is provided with a pin supporting hole for the corresponding lock pin to pass through.

The beneficial effects are that: the bulge is provided with a pin supporting hole, and two ends of the lock pin form a double-supporting structure to ensure the stability of the lock pin when stressed.

Furthermore, the protrusions are plate-shaped protrusions, so that the lock hook can be stopped by the side surface facing one side of the lock hook when the lock hook is hooked with the corresponding lock pin.

The beneficial effects are that: the side surface of the plate-shaped bulge is used for forming a stop surface for stop matching with the lock hook, and the plate shape is convenient to form.

In order to achieve the purpose, the connector adopts the following technical scheme:

the connector comprises a plug and a socket, wherein the plug comprises a plug shell and a plug contact piece, at least two positions on the periphery of the plug shell are provided with at least one lock pin at each position, the lock pins extend towards the periphery of the plug shell and are used for being matched with lock hooks on the adaptive socket, a cantilever end of at least one lock pin at least one position on the plug shell is provided with an oblique insertion prevention identification body, the oblique insertion prevention identification body is positioned at one end or one end of each lock pin far away from the shell, and when the inclination angle of the plug relative to the adaptive socket in the insertion process is larger than a set angle, the lock hooks on the adaptive socket can be stopped from rotating.

Drawings

FIG. 1 is a perspective view of the plug of the present invention;

FIG. 2 is a schematic view of the assembled structure of the plug of the present invention;

FIG. 3 is a schematic structural view of a plug housing according to the present invention;

FIG. 4 is a perspective view of the socket of the present invention;

FIG. 5 is a schematic view of the assembled structure of the socket of the present invention;

FIG. 6 is a schematic view of the plug and socket of the present invention in an inclined state;

FIG. 7 is an enlarged view taken at A of FIG. 6;

fig. 8 is a schematic structural view illustrating the anti-oblique insertion recognition member and the lock hook in the locked engagement according to the present invention.

In the figure: 1. a plug; 11. a plug contact; 12. a shielding elastic sheet; 13. a short lock pin; 14. a long lock pin; 15. an anti-oblique insertion baffle plate; 151. a pin support hole; 16. a plug housing; 2. a socket; 21. a receptacle contact; 22. a socket housing; 23. a transmission rod; 231. a camshaft; 232. a latch hook; 233. a transmission gear; 24. a handle; 25. an elastic member; 26. an insulator.

Detailed Description

The connector and the plug of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1 to 5, the connector includes a plug 1 and a socket 2 adapted to the plug 1, the plug 1 is provided with plug contacts 11 in groups, the socket 2 is provided with socket contacts 21 in groups, the plug contacts 11 correspond to the socket contacts 21, the same plug contact group and the same socket contact group formed are arranged in the length direction of the connector, a plurality of contact groups are arranged side by side in the width direction of the connector, the contact groups in the plug 1 and the socket 2 may be provided with only one group, or may be provided as two groups, three groups, four groups, six groups, etc., and the specific number is determined by the volume of the actually required power transmission circuit and the connector.

As shown in fig. 1 and 2, the plug contacts 11 are mounted in a rectangular plug housing 16, and both ends of each plug contact 11 are exposed out of both sides of the plug housing 16, one end of each plug contact 11 is a terminal, the other end is a contact end for electrically contacting with the socket contact 21, and a portion of the plug 1 corresponding to the terminal is called a mating end, both ends of the mating end in the length direction are respectively provided with two locking pins extending outward along the length direction of the plug 1, and the locking pins at each end are arranged at intervals in the width direction of the plug 1.

As shown in fig. 4 and 5, the socket contacts 21 are installed in groups in the rectangular socket housing 22, in the four groups of socket contacts 21, each two groups of socket contacts 21 are fixed by an insulating fixing plate, a rotating shaft assembly is further rotatably installed in the socket housing 22, the rotating shaft assembly mainly includes two rotating shafts arranged in parallel, two ends of the two rotating shafts are respectively provided with a transmission gear 233, the two rotating shafts are in meshing transmission through the transmission gear 233, and when one of the two rotating shafts rotates, the other rotating shaft synchronously and reversely rotates with the two rotating shafts. The two rotating shafts are respectively provided with a locking hook 232 on the inner side of the transmission gear 233, namely on the side away from the shaft end, the locking hook 232 is in the shape of a number 6, the circular part of the locking hook is sleeved on the rotating shaft, and the hook-shaped part forms a hook groove. The hook slot openings of the locking hooks 232 arranged at the corresponding ends of the two rotating shafts deviate from each other.

The two shafts are also sleeved with a cam shaft 231 at the shaft end between the two locking hooks 232, the cam shaft 231 can rotate synchronously with the shafts by the matching of profiles and corresponding shaft sections, and the periphery of the cam shaft 231 is provided with two symmetrical large-diameter section outer contour surfaces. One end of one rotating shaft is connected with a transmission rod 23 in an extending mode, a handle 24 is sleeved on the transmission rod 23 in a rotating mode, and the two rotating shafts can be driven to rotate through rotating the handle 24. And when the rotary shaft assembly is mounted in the socket housing 22, the transmission rod 23 and the handle 24 are extended out of the socket housing 22. Correspondingly, the socket housing 22 is provided with an opening groove extending in the height direction of the socket housing 22 through which the transmission lever 23 passes.

After the socket contacts 21 and the rotating shaft assembly are installed in the socket housing 22, the cam shafts 231 on the two rotating shafts are respectively located between the two adjacent sets of socket contacts 21, the outer contour surface at the maximum diameter of the cam shafts 231 forms an eccentric pushing surface eccentrically arranged relative to the axis of the rotating shafts, and when the rotating shafts rotate and drive the cam shafts 231 to rotate, the two corresponding sets of socket contacts 21 can be pushed away in the direction away from the rotating shafts respectively through the eccentric pushing surfaces. The socket 2 further includes an insulator 26, the insulator 26 is used for clamping the spindle assembly in the socket housing 22 and keeping it fixed in other directions than rotation around the axis, and the insulator 26 is connected to the socket housing 22 by a screw. One side surface of the socket contact piece 21 departing from the corresponding rotating shaft is a contact part for being in conductive connection with the plug contact piece 11, one side of the socket shell 22 corresponding to the contact end of the socket contact piece 21 is provided with a plugging cavity for the plug contact piece 11 to be plugged in, and a plugging space communicated with the plugging cavity is formed between the contact part of the socket contact piece 21 and the socket shell 22. When the plugging end of the plug 1 is inserted into the plugging cavity, the plug contact plate 11 extends into the plugging space, so that the rotating shaft can push the socket contact plate 21 through the cam shaft 231 to make the plugging part electrically contacted with the plug contact plate 11.

Still be provided with the elastic component 25 of fixed mounting on socket shell 22 in the socket 2, elastic component 25 sets up between the opposite face of plug 1 and socket 2, can provide the effort of opposite direction between them when plug 1 and socket 2 are inserted each other to when the latch pin is hooked and pulled in the hook groove, guarantee plug 1 and socket 2 throughout and be in the elasticity state of propping tightly, just so can guarantee plug 1 socket 2 and realize more reliable relatively fixed. The elastic member 25 includes a sheet-shaped fixing section and a seesaw arm section which is bent from both sides of the fixing section in an arc shape. After the assembly is completed, the arc-shaped arm raising section of the elastic part 25 just surrounds the two adjacent rotating shafts, when the inserting end of the plug 1 is inserted into the inserting cavity of the socket 2, the inserting end is abutted to the outer arc surface of the arm raising section, when the plug 1 is located at the position, the lock pin is located in the covering range of the hook groove of the lock hook 232 during rotation, the rotating shafts can push the corresponding socket contact piece 21 to be contacted with the plug contact piece 11 through the lock hook 232 when the cam shaft 231 rotates, and the lock pin is pulled to move further towards the inside of the inserting cavity in the rotating process. When the rotating shaft rotates to the bottom position of the hook groove, where the lock pin slides along the hook groove, the plug 1 and the socket 2 are located at the locking position, and the compression deformation amount of the two arm raising sections of the elastic piece 25 is the largest, so that the elasticity provided for the plug 1 and the socket 2 is the largest, and the locking of the plug 1 and the socket 2 can be reliably ensured. When the lock pin is positioned at the bottom of the hook groove, the direction of the acting force between the lock pin and the hook groove is preferably in the connecting line direction of the rotating shaft and the lock pin, or a concave part can be arranged at the bottom of the hook groove, so that the lock pin can be prevented from sliding out of the hook groove in the use process of the head seat assembly.

As shown in fig. 2 and 3, the plug 1 is provided with a slanting insertion preventing recognition member on the side of the cantilever end of the latch, i.e., in the direction of the end extending to the outside of the plug housing 16. The oblique insertion preventing identification body is positioned on one side of the lock pin, which is far away from the shell, and can stop the lock hook 232 in the socket 2 from rotating after the inclination angle of the plug 1 relative to the socket 2 is larger than a set angle in the process of inserting the plug 1 and the socket 2, so that the plug 1 and the socket 2 are prevented from being connected in a manner that the inclination requirement is not met.

The four lock pins are arranged in a centrosymmetric manner, namely, one long lock pin 14 and one short lock pin 13 are respectively arranged on two sides of the plug shell 16 along the same horizontal line. The anti-slanting identification member is formed by a protrusion of the plug housing 16 extending toward the receptacle 2, and is formed in a plate material provided on the front side of the long lock pin 14 in the length direction of the plug housing 16, and the root of the plate material is connected to the plug housing 16. The plate-shaped oblique insertion prevention identification body is defined as an oblique insertion prevention baffle 15, the distance between the side surface of the oblique insertion prevention baffle 15 facing the long lock pin 14 and the installation surface of the long lock pin 14 is the thickness of a lock hook 232 in the socket 2, so that when the plug 1 is matched with the socket 2, only if the plug 1 is completely aligned with the socket 2, the lock hook 232 can enter the space between the oblique insertion prevention baffle 15 and the installation surface of the long lock pin 14 so as to rotate in the space and hook the long lock pin 14, and a shielding elastic sheet 12 is further arranged outside the lock pins.

Because the length of the long lock pin 14 is long, in order to ensure the stability of the long lock pin 14 when the long lock pin 14 is matched with the lock hook 232, a pin supporting hole 151 for the long lock pin 14 to pass through is directly formed on the anti-inclined insertion baffle 15, and the long lock pin 14 passes through the installation surface and then enters the pin supporting hole 151 on the anti-inclined insertion baffle 15 again, so that a double-support structure is formed at two ends of the long lock pin 14 to ensure the stability of the long lock pin 14 when being stressed.

When an operator uses the connector of the present invention to establish a connection, as shown in fig. 6, there is an inclination between the plug 1 and the receptacle 2, and at this time, the plug contact 11 and the receptacle contact 21 are not conducted, and when the operator moves the plug 1 to press the receptacle 2, as shown in fig. 7 and 8, one latch hook 232 near the inner side of the receptacle 2 directly engages with the anti-wedge 15 in a blocking manner, and one latch hook 232 near the outer side of the receptacle 2 is axially staggered because the two latch hooks 232 are required to engage with corresponding latch pins, so that the latch hook 232 near the outer side of the receptacle 2 does not interfere with the anti-wedge 15, and the anti-wedge 15 only interferes with the corresponding latch hook 232. And the side of the anti-wedge stop 15 facing the corresponding lock hook 232 forms a stop surface for limiting the rotation of the lock hook 232. At this time, if the operator continues to rotate the transmission rod to drive the lock hook 232 to be hooked with the corresponding lock pin, because the lock hook 232 is limited by the anti-oblique baffle 15, the lock hook cannot rotate, the operator can obtain feedback by whether the transmission rod can continue to rotate or can smoothly rotate, and correspondingly adjust the plugging angle of the plug 1 and the socket 2, so that the plug 1 and the socket 2 are plugged and matched at an inclination angle meeting the requirement, so that the socket contact piece 21 and the plug contact piece 11 are conducted, the conducting process of the plug contact piece 11 and the socket contact piece 21 and the part describing the socket 2 are provided, and therefore repeated description is not provided here.

In other embodiments, the arrangement form of the oblique insertion prevention baffle forming the oblique insertion prevention recognition body may also have other forms, for example, the oblique insertion prevention recognition body is provided on one side of the plug housing; or the cantilever ends of the two lock pins on one side of the plug shell are provided with the anti-oblique insertion identification bodies.

In other embodiments, the distance between the anti-splay recognition body and the corresponding side of the plug housing may also be greater than the thickness of the corresponding latch hook.

In other embodiments, the anti-skewed insertion identification body can also be directly arranged on the lock pin, and the technical scheme formed by protruding a part of the plug shell is not adopted.

In other embodiments, the anti-wedge identifier may also be cylindrical or have other shapes with stop surfaces for stop engagement with the locking hook.

In other embodiments, the anti-misinsertion baffle forming the anti-misinsertion body may not be provided with a pin support hole, the corresponding lock pin does not penetrate into the anti-misinsertion body, and a space is provided between the anti-misinsertion body and the lock pin.

The structure and operation of the plug of the present invention are the same as those of the plug of the connector embodiment described above, as shown in fig. 1 to 3 and 6 to 8, and therefore, the description thereof will not be repeated.

In the above-mentioned illustrated embodiment, the oblique insertion preventing recognition bodies are all located on the plug and belong to a part of the plug, and in another embodiment, the latch hook may be provided on the plug, and the oblique insertion preventing recognition bodies may be provided on the socket as a part of the socket.

The above-mentioned embodiments, the objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The plug comprises a plug shell and a plug contact, wherein at least two positions on the periphery of the plug shell are provided with at least one lock pin, the lock pins extend to the periphery of the plug shell and are used for being matched with lock hooks on an adaptive socket, and the plug is characterized in that: the plug comprises a plug shell, wherein an anti-oblique-insertion identification body is arranged at the cantilever end of at least one lock pin at one position on the plug shell, the anti-oblique-insertion identification body is positioned at one end or one end of the lock pin far away from the shell, and when the inclination angle of the plug and an adaptive socket relative to the adaptive socket in the plugging process is larger than a set angle, a lock hook on the adaptive socket can be blocked from rotating.

2. The plug of claim 1, wherein: the distance between the oblique-insertion-preventing identification body and the corresponding side of the plug shell is equal to the thickness of a lock hook of a socket matched with the oblique-insertion-preventing identification body.

3. The plug of claim 1, wherein: the plug shell is a rectangular shell, the two opposite sides of the plug shell are respectively provided with the lock pins, the number of the lock pins at each position is two, the two lock pins are used for being staggered with the corresponding lock hooks in the axial direction, and the anti-oblique insertion identification body is arranged at one end of one lock pin which is positioned at the inner side opposite to the lock hook matching position.

4. A plug as claimed in claim 1, 2 or 3, wherein: the oblique insertion preventing identification body is formed by a protrusion on the plug shell along the plug insertion direction.

5. The plug of claim 4, wherein: the protrusion is provided with a pin supporting hole for the corresponding lock pin to pass through.

6. The plug of claim 5, wherein: the protrusions are plate-shaped protrusions, and the lock hook can be stopped by the side surface facing one side of the lock hook when the lock hook is hooked with the corresponding lock pin.

7. The plug of claim 4, wherein: the protrusions are plate-shaped protrusions, and the lock hook can be stopped by the side surface facing one side of the lock hook when the lock hook is hooked with the corresponding lock pin.

8. Connector, including plug and socket, its characterized in that: the plug is as claimed in any one of claims 1 to 7.