CN105223659B - Resilient push and use plug casing and the daughter board plug of this resilient push - Google Patents

Abstract

The invention relates to an elastic push rod and a plug housing and a sub-board plug using the elastic push rod. The plug housing includes a plug part housing, and an elastic push rod is arranged on the plug part housing. The push rod body is fixedly installed and elastically overhangs with the head end facing forward. The plug housing also includes a floating housing that can move relative to the plug part housing in the front and rear directions. The housing stopper structure is used to limit the forward movement of the floating housing, and the front side of the pushrod body is provided on the front side of the housing stopper structure for being blocked by the socket housing before the plug part housing is blocked by the corresponding socket part housing. The force-bearing part is pushed by the body, and the force-bearing part is used to be pushed by the socket housing to elastically deform the overhanging end of the push rod body to make the housing stop structure get away from the floating housing. The invention solves the problem in the prior art that the component shell and the sub-board cannot float in the insertion direction, which causes the plug of the sub-board to be easily damaged.

Description

Elastic push rod and plug housing and sub-board plug using the elastic push rod

technical field

The invention relates to an elastic push rod, a plug housing and a sub-board plug using the elastic push rod.

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.

However, if the data communication between the backplane and the sub-board is transmitted by optical fiber, the transmission capacity will be much higher than that of the existing electrical transmission. The existing connection used to realize the optical signal transmission between the backplane and the sub-board The device assembly includes a backplane socket for being arranged on a corresponding backplane and a subboard plug for being arranged on a corresponding subboard, the daughterboard plug includes a component housing and a contact unit assembled in the component housing, the contact The unit includes a limit seat, a pin body and a spring mounted on the top between the limit seat and the pin body, the limit seat is fixed on the component shell, and the component shell is fixed on the sub-board. When in use, the operator holds the daughter board and inserts the plug of the daughter board into the socket on the backplane. The problem existing in this kind of connector assembly is: in the actual use process, it is found that the insertion of the daughter board plug and the insertion of the daughter board are often not synchronized, often after the daughter board plug is inserted in place, the daughter If the board is not plugged into place, if you continue to fade the board, it will damage the plug of the daughter board and cause hidden dangers to the reliability of the connector.

Contents of the invention

The object of the present invention is to provide a daughter board plug to solve the problem in the prior art that the component housing and the daughter board cannot float in the insertion direction, which causes the daughter board plug to be easily damaged; the purpose of the present invention is also to provide a Resilient push rods and plug housings used in daughterboard plugs.

In order to solve the above problems, the technical scheme of the elastic push rod among the present invention is:

Elastic push rod, the elastic push rod has a push rod body whose end is used to be fixedly arranged with the housing of the plug part, and whose head end is elastically overhanging forward. The housing stop structure for the floating housing to move forward. The front side of the push rod body is provided on the front side of the housing stop structure for being pushed by the socket housing before the plug part housing is blocked by the corresponding socket part housing. The force-bearing part is used for being pushed by the socket housing to elastically deform the protruding end of the push rod body so that the housing stop structure moves away from the floating housing.

Both the bearing part and the housing stop structure are located on the upper side of the push rod body.

The technical scheme of the plug housing in the present invention is:

The plug housing includes a plug part housing whose front end is a plug-in end, and an elastic push rod is arranged on the plug part housing. The rod body and the plug housing also include a floating housing that can move relative to the plug part housing in the front and rear directions. The housing stop structure, the push rod body is provided with a force-bearing part used to be pushed by the socket housing before the plug part housing is blocked by the corresponding socket part housing on the front side of the housing stop structure, and the force-bearing part The part is used for being pushed by the socket housing to elastically deform the cantilevered end of the push rod body so that the housing stop structure moves away from the floating housing.

The plug part housing is a flat block structure whose thickness extends along the vertical direction and whose width extends along the left and right directions. The elastic push rod is arranged on the upper end of the plug part housing. The deformation gap where the elastic push rod elastically deforms in the up and down direction.

Both the bearing part and the housing stop structure are located on the upper side of the push rod body.

The technical scheme of the neutron board plug of the present invention is:

The daughter board plug includes a plug housing, the plug housing includes a plug part housing with a front end as a plug-in end, a contact unit is arranged in the plug part housing, an elastic push rod is arranged on the plug part housing, and the elastic push rod has an end The push rod body is fixedly arranged with the plug part housing, and the head end is elastically suspended forward. There is a housing stop structure that cooperates with the floating housing to limit the forward movement of the floating housing. On the front side of the housing stop structure, the push rod body is provided with a socket for the plug part housing to be connected to the corresponding socket. The force-bearing part that is pushed by the socket housing before the component housing stops, and the force-bearing part is used for being pushed by the socket housing to elastically deform the overhanging end of the push rod body to make the housing stop structure Get out of the way of the floating housing.

The daughter board plug is an optical fiber plug.

The plug part housing is a flat block structure whose thickness extends along the vertical direction and whose width extends along the left and right directions. The elastic push rod is arranged on the upper end of the plug part housing. The deformation gap where the elastic push rod elastically deforms in the up and down direction.

Both the bearing part and the housing stop structure are located on the upper side of the push rod body.

The beneficial effects of the present invention are: when in use, the floating housing of the plug housing is set on the sub-board, and the operator holds the sub-board so that the sub-board plug and the backplane socket are mated. At the beginning of the plugging process, the push rod body The upper casing stop structure cooperates with the floating casing, and the floating casing moves forward together with the plug part casing and the contact element unit until the force-bearing part of the push rod body is pushed by the socket casing. As the floating housing continues to move forward, the amount of deformation of the elastic push rod pushed by the socket housing is also increasing, until the housing stop structure lets go of the floating housing, so that the floating housing can move forward without blocking. The bottom can continue to move forward until the sub-board is installed in place, and the influence of the sub-board on the plug of the sub-board is eliminated by the floating of the floating housing relative to the housing of the plug part, thereby ensuring the service life of the plug of the sub-board.

Description of drawings

Fig. 1 is the use status diagram of an embodiment of the neutron board plug of the present invention;

Fig. 2 is a schematic diagram of the structure when the sub-board plug is plugged into the backplane socket in Fig. 1;

Fig. 3 is an enlarged view of place A of Fig. 2;

Fig. 4 is a schematic diagram of cooperation between the contact unit and the optical fiber in Fig. 1;

Fig. 5 is a schematic diagram of cooperation between the plug housing and the floating installation mechanism in X and Y directions in the present invention;

Fig. 6 is the top view of Fig. 2;

Fig. 7 is a C-C cross-sectional view of Fig. 6;

Fig. 8 is an enlarged view at B of Fig. 6;

Fig. 9 is an enlarged view of D in Fig. 7 .

detailed description

Embodiments of the sub-board plug are shown in Figures 1 to 9: the sub-board plug 3 in the present invention is an optical fiber plug, the sub-board plug 3 includes a plug housing, and the plug housing includes a plug part housing 8, a locking housing 6 and The floating housing 5, wherein the front end of the plug part housing is a plug-in end, the plug part housing is made of insulating material, a contact unit is arranged in the plug part housing, and the contact unit includes pin bodies 11 and The limit seat 12, in this embodiment, the limit seat is a two-body structure, the pin body includes MT pins, the limit seat 12 is provided with an elastic arm 7, and the elastic arm 7 is provided with a locking protrusion 9, the plug part The housing 8 is provided with a card slot that cooperates with the locking protrusion 9, and the first spring 10 is mounted on the top between the limit seat 12 and the pin body 11, and the limit seat has a main channel for the corresponding optical fiber to pass through in the front and rear direction And the auxiliary channel 13 for the optical fiber 14 to pass along the direction perpendicular to the front and rear. In this embodiment, the optical fiber is a fiber ribbon structure, the limit seat is a square sleeve structure, and the auxiliary channel 13 is arranged at a corner of the direction sleeve. Through the setting of the auxiliary channel, the limit seat 12 can be taken out from the optical fiber along the direction perpendicular to the front and back, so that when the limit seat is damaged, only the limit seat needs to be replaced.

The plug part housing 8 is a flat block structure whose thickness extends in the up-down direction and whose width extends in the left-right direction. The plug part housing is provided with an elastic push rod 21. The end of the push rod body 22 is elastically suspended forward. The elastic push rod is arranged on the upper end of the plug part housing. There is a deformation gap between the plug part housing and the overhanging end of the push rod body for elastic deformation of the elastic push rod along the up and down direction. 20. The overhanging end of the push rod body 22 is provided with a housing stopper structure 24 that cooperates with the floating housing 5 to limit the forward movement of the floating housing. The floating housing is provided with a lock that pushes the housing stopper structure 24. Tightly push the push part 23. In this embodiment, the housing stop structure 24 is a protrusion protruding from the upper end of the push rod body 22. The force bearing part 25 is pushed by the socket housing before the body is blocked by the corresponding socket part housing. The body stop structure lets go of the floating housing 5, the floating housing 5 can move relative to the plug part housing 8 in the front and rear directions, and the force-bearing part 25 is located on the upper side of the push rod body. Through the above structure, the Z-direction floating of the floating housing corresponding to the housing of the plug part can be realized, and the Z-direction corresponds to the front-back direction.

The plug part housing is provided with a locking groove 28 for cooperating with the locking hook on the backplane socket. The locking hook 27 is an elastic hook that can float with the elastic tongue 26 inserted. The locking housing 6 is guided along the front and rear directions. It is movable and assembled on the plug part housing 8. A second spring 10 for applying a forward force to the locking case is arranged between the locking case 6 and the plug part case 8. The locking case 6 has a In the direction perpendicular to the front and back direction, it is limitedly matched with the locking hook 27 to prevent the locking hook from coming out of the locking groove. part 30, the longitudinal pressure-bearing part 30 is located on the front side of the lateral pressure-applying part 29, when the sub-board plug and the backplane socket are mated, the end of the locking hook 27 pushes the longitudinal pressure-bearing part 30, so that the locking shell The body 6 moves backward, and when the locking hook 27 enters the locking groove 28, the locking hook no longer pushes the locking housing, and is subjected to the active force of the second spring, the locking housing moves forward, and the locking housing The horizontal pressing part 29 on the top moves to the position of the locking hook, and the locking hook is limited by the horizontal pressing part 29 to prevent the locking hook from coming out of the locking groove 28, so as to realize the connection between the sub-board plug and the backplane socket. of the lock. The locking housing is provided with a guide groove 35 extending in the front-rear direction. The rear groove wall 37 of the guide groove 35 is an inclined wall gradually inclined forward from bottom to top. The floating housing is provided with a barb located in the guide groove. 36, the barb 36 can move in the guide groove 35, and the barb 36 is adapted to the slope of the rear side groove wall of the guide groove 35, so that when the sub-board moves backward with the floating housing, the barb 36 can carry the lock The tight housing 6 moves backward, so that the lateral pressing part is removed from the locking hook, thereby realizing unlocking. The unlocking of the locking shell is realized by pulling the sub-board, which is very suitable for use in an environment where the density of the sub-board is high and there is no space to directly pull the locking shell.

The left and right sides of the floating shell are installed on the sub-board through the X and Y floating installation mechanisms. The X direction corresponds to the left and right directions, and the Y direction corresponds to the up and down directions. 1. The rear limit block 18 and the connecting column 15 connected between the front and rear limit blocks, the front limit block 16 is fixed on the sub-board by screws 17, and the left and right sides of the floating housing are provided with axes extending along the front and rear directions The floating hole 50, the hole wall of the floating hole is provided with a sidewall channel for the connecting column to be loaded in the X direction, and there are floating gaps in the left and right directions and up and down directions between the floating hole and the connecting column. In this way, when the daughter board is docked with the back board, there may be a problem that the head seat cannot be inserted and the parts are damaged. Item 2-1 in Fig. 7 represents the socket housing.

During use, the sub-board plug 3 is installed on the sub-board 4, and the backplane socket 2 matched with it is installed on the backplane 1, and the operator can hold the sub-board so that the sub-board plug and the backplane socket are mated, X, The Y-direction floating installation mechanism can prevent the problem that the sub-board plug and the backplane socket cannot be plugged in. After the sub-board plug and the backplane socket are mated, the locking hook on the backplane socket first hooks the plug component shell. The locking groove, the lateral pressing part on the locking shell presses the locking hook, and the daughterboard plug and the backplane socket are locked. As the daughterboard continues to move forward, the floating shell pushes the elastic push rod, and the elastic push The rod continues to move forward with the housing of the plug part. Gradually, the bearing part on the socket housing and the elastic push rod is pushed to make the overhanging end of the push rod body elastically deform downward. Under the action of the socket housing, The housing stop structure on the push rod body will be completely disengaged from the floating housing, the sub-board continues to move forward, only the floating housing moves forward, the sub-board is installed in place, and the floating housing is also blocked by the socket housing. During the floating process of the floating housing, the housing of the plug part will move backward under the action of the first spring until the locking hook works again. When the sub-board plug needs to be separated from the backplane socket, the sub-board is pulled by hand, and the floating housing moves backward. After the barb on the floating housing hooks the rear side wall of the locking housing, the floating housing can drive the lock. The housing is moved backward to realize unlocking.

In other embodiments of the sub-board plug: the sub-board plug can also be an LC plug; of course, the Z-direction floating in the above-mentioned embodiments, and the X- and Y-direction floating installation mechanisms can also be applied to electrical connectors. It can be an electric plug. When the sub-board plug is an electric plug, the contact unit is an insulator provided with contacts; the deformation direction of the overhanging end of the push rod body can also be the left and right direction, and the push rod body can be arranged on the plug part at this time. The side of the housing; the housing stop structure may not be a bump structure. For example, the upper end surface of the push rod body is a stepped structure with a high front and a low rear. At this time, the housing stop structure can be formed by the steps of the stepped structure The surface structure; the limit seat can also adopt a single structure.

The embodiment of the plug housing is shown in Figures 1 to 9: the specific structure of the plug housing is the same as the plug housing described in the above embodiments of each sub-board plug, and will not be described in detail here.

The embodiment of the elastic push rod is shown in Figures 1 to 9: the specific structure of the elastic push rod is the same as the elastic push rod described in the embodiments of the above-mentioned sub-board plugs, and will not be described in detail here.

Claims (9)

1. null1. daughter board plug，Including plug casing，Plug casing includes the male component housing that front end is inserted terminal，Male component housing is provided with contact unit，It is characterized in that: on male component housing, be provided with resilient push，Resilient push has end and is fixedly installed with described male component housing、The head end elastic putter body overhang forward，Plug casing is additionally included on fore-and-aft direction can the flotation shell that moves of opposing plug part case，The projecting end of putter body is provided with and coordinates with described flotation shell block to limit the housing Stop structure that flotation shell moves forward，In putter body, the front side in housing Stop structure is provided with before at male component housing by respective socket part case block by the load portion of Socket casing pushing tow，Load portion makes described housing Stop structure get out of the way described flotation shell after being made the projecting end elastic deformation of putter body by described Socket casing pushing tow.
2. Daughter board plug the most according to claim 1, it is characterised in that: described daughter board plug is Optical fiber plug.
3. Daughter board plug the most according to claim 1 and 2, it is characterized in that: male component housing is the flat block structure that thickness is vertically extending, width extends in left-right direction, described resilient push is arranged at male component housing upper end, has the deformation gap for resilient push elastic deformation along the vertical direction between male component housing and the projecting end of putter body.
4. Daughter board plug the most according to claim 3, it is characterised in that: load portion and housing Stop structure are in the upside of putter body.
5. 5. resilient push, it is characterized in that: resilient push has end for being fixedly installed with male component housing, the head end elastic putter body overhang forward, the projecting end of putter body is provided with for coordinating with flotation shell block to limit the housing Stop structure that flotation shell moves forward, in putter body, the front side in housing Stop structure is provided with before at male component housing by respective socket part case block by the load portion of Socket casing pushing tow, load portion makes described housing Stop structure get out of the way described flotation shell after being made the projecting end elastic deformation of putter body by described Socket casing pushing tow.
6. Resilient push the most according to claim 5, it is characterised in that: load portion and housing Stop structure are in the upside of putter body.
7. 7. plug casing, including the male component housing that front end is inserted terminal, it is characterized in that: on male component housing, be provided with resilient push, resilient push has end and is fixedly installed with described male component housing, the head end elastic putter body overhang forward, plug casing is additionally included on fore-and-aft direction can the flotation shell that moves of opposing plug part case, the projecting end of putter body is provided with and coordinates with described flotation shell block to limit the housing Stop structure that flotation shell moves forward, in putter body, the front side in housing Stop structure is provided with before at male component housing by respective socket part case block by the load portion of Socket casing pushing tow, load portion makes described housing Stop structure get out of the way described flotation shell after being made the projecting end elastic deformation of putter body by described Socket casing pushing tow.
8. Plug casing the most according to claim 7, it is characterized in that: male component housing is the flat block structure that thickness is vertically extending, width extends in left-right direction, described resilient push is arranged at male component housing upper end, has the deformation gap for resilient push elastic deformation along the vertical direction between male component housing and the projecting end of putter body.
9. Plug casing the most according to claim 8, it is characterised in that: load portion and housing Stop structure are in the upside of putter body.