CN104993294B - A kind of socket - Google Patents

Abstract

The invention relates to a socket, comprising a dust-proof plate and a socket housing whose front end is a plug-in end. The return elastic part exerts an upward force on the board and the cover elastic part is used to apply a downward force to the dust-proof plate and is separated from the dust-proof plate due to the force of the push plate of the plug when the plug is inserted into the socket, The action force of the cover elastic member on the dust-proof plate is greater than the action force of the reset elastic member on the dust-proof plate, so that the dust-proof plate is in the position of covering the socket housing. The invention solves the problem in the prior art that the length of the plug is relatively large due to the overturning movement of the dust-proof plate.

Description

a socket

technical field

The invention relates to sockets for signal transmission.

Background technique

In the cabinet of communication equipment, data communication needs to be carried out between the backplane and the sub-board. At present, the relatively mature communication method is to use high-speed differential electrical connector transmission. Due to the defects of electrical signal transmission, this communication method has certain advantages. transmission limit.

And if the data communication between the backplane and the sub-board adopts optical fiber transmission, the transmission capacity will be much higher than that of the existing electrical transmission, but the optical fiber transmission involves the connection of optical fiber joints between the sub-board and the backplane. The outer diameter of the core is at the μm level, coupled with the characteristics of the light itself, it is extremely sensitive to the quality of the contact end face. In actual use, the backplane connector is usually pre-installed in the cabinet along with the backplane, and the subboard is installed later as needed. Since the computer room is usually an unclean area, it is easy to introduce dust and other dirt to the connector in the cabinet, and then it is easy to cause damage. The end face of the optical fiber connector is dirty, and when the product is used, the cabinet is usually air-cooled. Even after the plug and socket are mated, it is still necessary to carry out a dust-proof design.

Existing optical connectors with dust-proof structures such as the "optical connector for backplane" disclosed in Chinese patent CN104412141A disclose a plug and a socket. The front end of the socket housing is hinged with a dust-proof plate whose hinge axis extends along the left and right directions. The plug includes a plug housing with a push plate. When the plug and socket are plugged, the push plate pushes against the dust-proof plate. Turn the dust-proof plate clockwise to turn up the front panel, so that the optical fiber pins in the plug housing and the optical fiber pins in the socket are inserted. After the plug and socket are inserted, the plug and socket are separated to prevent The dust plate is turned down counterclockwise by its own weight to re-seal the socket housing, thereby ensuring that the optical fiber ferrule in the socket housing is in a dust-free environment. The problem with the existing dust-proof structure is that after the plug and socket are separated, the dust-proof plate relies on gravity to turn down to cover the socket housing again. There is a gap between the bodies, and dust may contaminate the optical fiber ferrule through the gap. Of course, more importantly, since the dust-proof board must completely cover the socket of the socket housing, the length of the dust-proof board in the up and down direction is generally longer. The dustproof plate relies on turning over to cover the socket housing and get out of the way of the plug. The turning movement of the dustproof plate is relatively large. In order to avoid the dustproof plate, the push plate of the plug needs to be made longer, which eventually leads to the length of the plug. Larger size.

Contents of the invention

The object of the present invention is to provide a socket to solve the problem in the prior art that the length of the plug is relatively large due to the overturning movement of the dust-proof plate.

In order to solve the above problems, the technical solution of the present invention is:

A socket, comprising a dustproof plate and a socket housing whose front end is a plug-in end. The dustproof plate is guided and moved in the up and down direction and assembled on the socket housing. The return elastic part of the directional force and the cover elastic part for applying downward force to the dust-proof plate and separating from the dust-proof plate due to the force of the push plate of the plug when the plug is inserted into the socket, the cover elastic The acting force of the part on the dust-proof plate is greater than that of the reset elastic part on the dust-proof plate so that the dust-proof plate is in the position of covering the socket housing.

The cover elastic member is a compression elastic piece whose upper end is arranged on the socket housing and whose lower end is pressed against the dustproof plate.

The socket housing is provided with a force transmission cam for transmitting force between the push plate and the compression spring to realize that the cover elastic part is separated from the dustproof plate due to the force of the push plate. On the socket housing on the lower side of the shrapnel, the rotation axis of the force transmission cam extends along the left and right directions, and the force transmission cam is provided with a force receiving part for being pushed by the push plate and a force-receiving part for pushing the compression shrapnel. of the force department.

The compression shrapnel and the force transmission cam are both arranged in the middle of the socket housing in the left and right directions, and the dustproof plate is provided with a through slot for the push plate on the plug to pass through in the front and rear directions.

The return elastic member is a return spring whose axis extends in the vertical direction.

The dust-proof plate includes a horizontally arranged top plate part and at least one vertical plate part arranged at the front end of the top plate part. A concave step is formed to be clamped on the front end of the pin part of the socket.

There are two vertical board parts, and the two vertical board parts are arranged at intervals before and after.

The beneficial effects of the present invention are: when the socket is not plugged with the plug, since the force of the cover elastic member is greater than the force of the reset elastic member, the dustproof plate is firmly in the position of the cover socket shell, and the plug is When plugging in, the push plate on the plug transmits force to the elastic part of the cover, the elastic part of the cover is separated from the dustproof plate by the force of the push plate, and the dustproof plate moves out of the way by the force of the reset elastic part The plug, the plug and the socket can be inserted smoothly. The dust-proof plate in the present invention realizes sealing socket housing and getting out of the way of the plug by moving up and down, and there is basically no movement range in the front and rear directions, so the push plate on the plug does not need to be lengthened for avoiding the dust-proof plate, which can reduce the The overall length of the small plug.

Description of drawings

Fig. 1 is a schematic structural view of the dustproof plate in the position of the cover socket housing in an embodiment of the socket of the present invention;

Fig. 2 is a perspective view of Fig. 1;

Fig. 3 is a schematic structural view of the dustproof plate in the position of letting go of the plug in the present invention;

Fig. 4 is a perspective view of Fig. 3;

Fig. 5 is a schematic diagram of the structure of the plug and the socket;

Fig. 6 is a schematic diagram of the structure when the plug and the socket are not connected.

Fig. 7 is a schematic diagram of the structure when the sub-board is connected to the plug and the backplane is connected to the socket in Fig. 5;

FIG. 8 is a schematic structural view of the sub-board connected to the plug and the backplane connected to the socket in FIG. 6 .

detailed description

The embodiment of the socket is shown in Figures 1 to 8: the socket 21 in this embodiment is an optical fiber socket, including a dustproof plate 5 and a socket housing 1 whose front end is a plug-in end, and the socket housing 1 is provided with a pin part 3, The dust-proof plate 5 guides and moves in the up and down direction and is assembled on the socket housing 1. The socket housing 1 is provided with a reset elastic member for applying an upward force to the dust-proof plate 5 and for applying a downward direction to the dust-proof plate. The cover elastic part of the acting force, in this embodiment, the dustproof plate 5 includes a top plate part 4 arranged horizontally and two vertical plate parts 7 arranged at the front end of the top plate part, the two vertical plate parts 7 are arranged at intervals, and the cover is elastically Parts and reset elastic parts act on the upper and lower sides of the top plate part 4 respectively, and an inner concave step is formed between the top plate part 4 and the riser part 7 for clamping on the front end of the pin part 3 of the socket, and the socket housing is provided with Groove for guide fit with inner riser section. The return elastic member is a return spring 6 whose axis extends in the up-down direction. There are two return springs, and the two return springs are spaced apart from each other. The lower end of the top plate part is provided with a spring positioning column inserted into the corresponding return spring. The elastic part of the cover is a compression elastic piece 2 whose upper end is arranged on the socket housing and whose lower end is pressed on the top plate part of the dustproof plate. The force transmission cam 9 that the elastic part of the cover is separated from the dustproof plate due to the force of the push plate, the force transmission cam 9 is rotatably assembled on the socket housing on the lower side of the compression shrapnel, the rotation axis of the force transmission cam extends along the left and right directions, and the transmission The force cam is provided with a force receiving part for being pushed by the push plate and a force application part for pushing and compressing the shrapnel. The compression shrapnel and the force transmission cam are both arranged in the middle part of the socket housing in the left and right direction, and the dustproof plate is provided with a slot 8 for the push plate on the plug to pass through in the front and back direction.

When the plug and socket are not plugged in, the force of the compression spring 2 on the dust-proof plate 5 is greater than the force of the return spring 6 on the dust-proof plate 5, so the dust-proof plate 5 is in the position of covering the socket shell, double-layer On the one hand, the vertical board part of the structure is convenient for the guidance of the dustproof board, on the other hand, the outer vertical board part can protect the inner vertical board part, preventing dust from depositing on the surface of the inner vertical board part, so that the dustproof board can be avoided When moving up and down, some dust enters the inside of the socket housing. The structure of the plug 22 adapted to the socket is shown in Figures 5 to 8: it includes a plug housing 15, and a push plate 16 is arranged on the plug housing 15, and the front end of the push plate has a force-receiving part for the force transmission cam. The push-push slope 17 that pushes fit, when in use, the plug 22 is arranged on the sub-board 23 of the equipment cabinet, and the socket 21 is arranged on the backboard 20 of the equipment cabinet, when the plug and the socket are inserted, the push plate passes through the dustproof plate The groove on the top passes through the force-receiving part of the rear push force transmission cam, the force transmission cam rotates due to the push of the push plate, and the force application part of the force transmission cam pushes the compression shrapnel, and the compression shrapnel moves upward to contact with the dustproof plate At this time, under the action of the return spring, the dustproof plate moves away from the plug, which can realize the smooth insertion of the plug and socket. When the plug and socket are pulled out, the force driving the force transmission cam disappears, and the shrapnel is pressed Press the dust plate down again to seal off the receptacle housing. The compression shrapnel and the force transmission cam are arranged in the middle of the left and right direction of the socket housing, and the compression shrapnel exerts pressure on the middle part of the dustproof plate, so only one compression shrapnel can meet the requirements, and one compression shrapnel and two reset The spring forms a stable triangular force-applying structure, which makes the movement of the dust-proof plate stable up and down, and prevents dust from splashing and polluting the optical fiber ferrule components caused by vibration.

In other embodiments of the present invention: the number of return springs can also be one, three or other numbers, and the number of pressing shrapnel can also be two, three or other numbers; the return springs can also be shrapnel and other elastic parts instead; the compression shrapnel can also be replaced by a spring, for example, a pressure plate with an axis extending in the left and right direction is hinged on the socket housing, and the cover elastic part can press down the dustproof plate by applying force to the pressure plate, At this time, the cover elastic member can be a helical spring or a torsion spring; of course, the force transmission cam can also be omitted, and the push plate on the plug can directly push the compression shrapnel so that the compression shrapnel is separated from the dustproof plate. , at this time, the compression shrapnel can be located on one side of the pin part; the number of the vertical plate parts of the dustproof plate can also be one, three or other numbers, and of course the dustproof plate can also only have the vertical plate part. Can dig the installation hole that reset bullet is installed in the riser part; Certainly socket also can be the electric socket that requires higher dustproof level.

Claims (7)

1. a kind of socket, including dust excluding plate and Socket casing that front end is inserted terminal, it is characterised in that：Dust excluding plate is along the vertical direction Guiding movement is assemblied on the Socket casing, is provided with Socket casing for applying upward direction effect to the dust excluding plate The return springs of power and for the dust excluding plate apply in downward direction active force and in plug insertion socket process because of plug Push pedal active force and the capping elastic component that departs from dust excluding plate, capping elastic component is more than Flexible Reset to the active force of dust excluding plate Part makes position of the dust excluding plate in the contact pin components front end covered in Socket casing to the active force of dust excluding plate.

2. socket according to claim 1, it is characterised in that：The capping elastic component is that upper end is arranged at the socket shell Body upper and lower end is pressed in the compression shell fragment on the dust excluding plate.

3. socket according to claim 2, it is characterised in that：It is provided with Socket casing in the push pedal and compression Power transmission covers the power transmission cam that elastic component departs from by push pedal active force with dust excluding plate to realize between shell fragment, power transmission cam rotation It is assemblied on the Socket casing on the downside of compression shell fragment, the pivot center of power transmission cam extends in left-right direction, power transmission cam On be provided with for by the forced section of the push pedal pushing tow and for described in pushing tow compress shell fragment force section.

4. socket according to claim 3, it is characterised in that：Compress shell fragment and power transmission cam may be contained within a Socket casing left side The wears groove passed through along the longitudinal direction for the push pedal on the plug is provided with middle part in right direction, dust excluding plate.

5. socket according to claim 1, it is characterised in that：The return springs are that axis is vertically extending Back-moving spring.

6. the socket according to claim 1 ~ 5 any one, it is characterised in that：The dust excluding plate includes horizontally disposed top Plate part and at least one riser portion for being arranged at top plate portion front end, capping elastic component, return springs are respectively acting on The both sides up and down of top plate portion, form the interior of contact pin components front end for being installed in socket between top plate portion and riser portion Concave station rank.

7. socket according to claim 6, it is characterised in that：Riser portion has two, two riser portion time intervals Set.