CN109327992B

CN109327992B - Pulling aid, plugging assembly and communication equipment

Info

Publication number: CN109327992B
Application number: CN201710644781.1A
Authority: CN
Inventors: 徐华华; 李刚锋; 贺永宝
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-07-31
Filing date: 2017-07-31
Publication date: 2021-01-05
Anticipated expiration: 2037-07-31
Also published as: CN109327992A

Abstract

The embodiment of the invention discloses a pulling aid, which is used for realizing the plugging and unplugging of a module relative to a case, wherein the module comprises a first connector, and the case comprises a second connector. The pull-out aid can eliminate fit clearance without damaging the connector. The embodiment of the invention also discloses a plug assembly and communication equipment.

Description

Pulling aid, plugging assembly and communication equipment

Technical Field

The invention relates to the technical field of pluggable equipment, in particular to a pulling aid, a pulling assembly and communication equipment.

Background

At present, a module of a pluggable communication device is usually installed on a case through a pulling aid, and after the module is installed in the case, a connector of the module is in butt joint with a connector of the case. Due to the existence of machining tolerance and assembly tolerance, full-matching between the connector of the module and the connector of the chassis is difficult to occur, and a matching gap (matching) usually occurs between the connector of the module and the connector of the chassis, so that the signal transmission quality is poor.

Disclosure of Invention

The embodiment of the invention provides a pulling aid, a plugging component and communication equipment, which can eliminate fit clearance and can not damage a connector.

In a first aspect, an embodiment of the present invention provides a plug assist device, which is used for realizing plugging and unplugging of a module with respect to a chassis. The module includes a first connector and the chassis includes a second connector. The extraction aid comprises a fixing piece and a wrench. The fixing piece comprises a fixing part, a connecting part and a movable part which are connected in sequence. The fixing part is used for fixing on the module. The connecting part has elastic deformation capacity. The connecting part is elastically deformed under the action of external force, so that the movable part moves relative to the fixed part. The spanner includes block portion, rotation portion and the handle portion that connects gradually. The rotating part is rotatably connected with the movable part. Namely, the rotating part is connected with the movable part, the rotating part can rotate relative to the rotating part, and the movable part provides a rotating shaft for the wrench. The clamping part is used for being matched with the case. The handle part is used for driving the module to move relative to the case under the action of external force so as to enable the first connector to be plugged with or separated from the second connector. The first connector and the second connector are plugged with each other to realize electric transmission and/or signal transmission.

In this embodiment, in order to eliminate a fit clearance between the first connector and the second connector to ensure the signal transmission quality between the first connector and the second connector, the design dimensions of the module, the chassis, and the plug assist device that fit each other satisfy: when the module is completely inserted into the chassis, the first connector and the second connector are completely inserted, and a designed interference amount exists between the first connector and the second connector. The connecting part has elastic deformation capacity, so the movable part provides a floating rotating shaft for the wrench. In the process of inserting the module into the case, if hard interference formed by the design interference amount, the machining tolerance and the assembly tolerance exists, after the first connector is completely inserted into the second connector, the first connector and the second connector are mutually extruded to form acting force so that the connecting part is elastically deformed, the movable part can move relative to the fixed part, so that the rotating shaft of the wrench moves relative to the module, the fixing part can absorb the hard interference, the module is not continuously inserted into the case any more, no fit gap exists between the first connector and the second connector, complete insertion is realized, damage caused by excessive extrusion is avoided, and the deformation risk of the module and the case can be reduced. Meanwhile, the elastic deformation of the connecting part can play a role in buffering in the plugging and unplugging process of the first connector and the second connector so as to further protect the first connector and the second connector. The pulling aid in the embodiment of the application has the advantages of simple structure, small occupied space, low cost and good stability, and can be popularized on various plugging components and communication equipment.

The designed amount of interference between the first connector and the second connector may be one or more sources of mating interference, such as: interference fit between the engaging portion and the chassis, interference fit between the first connector and the module, interference fit between the second connector and the chassis, interference fit between the fixing portion of the fixing member and the module, and the like. The hard interference is an interference amount which is not absorbed by a special elastic part but is absorbed by the deformation of the module, the deformation of the chassis or the deformation of the extraction aid. The elastic deformation force of the connecting part is larger than the plugging force of the module, so that the plugging and unplugging action of the module can be smoothly carried out, and meanwhile, the elastic deformation force of the connecting part is also smaller than the deformation force of the module (comprising the first connector), the deformation force of the case (comprising the second connector) and the deformation force of the wrench, so that the connecting part is deformed before the module, the case and the wrench, so that the module, the case and the wrench are protected. The user can drive the module to be inserted into the case by pushing the handle part to enable the first connector and the second connector to be mutually inserted, and can drive the module to be separated from the case by pulling the handle part to enable the first connector and the second connector to be mutually separated.

In one embodiment, the two ends of the connecting part form a gap in the insertion and extraction direction of the module. The plugging direction of the module is the direction in which the module is plugged into or unplugged from the case. The clearance reduces under the exogenic action to direct absorption design interference volume, design tolerance and assembly tolerance make the deformation degree of difficulty of connecting portion is less, first connector with the second connector is more difficult for taking place to damage.

In one embodiment, the connecting portion is integrally formed with the fixed portion and the movable portion. At this moment, mounting integrated into one piece to can enough reduce the processing degree of difficulty and the cost of mounting, also make connecting portion with the fixed part and the connection of movable part is more firm.

Wherein, the connecting part is an elastic arm. The elastic arm is U-shaped, Z-shaped, C-shaped or S-shaped.

The connecting part comprises a first section, a second section and a third section which are sequentially connected, the first section is connected with the fixed part, the third section is connected with the movable part, and the second section is made of elastic materials. The first section is parallel to the third section, so that two ends of the connecting part are arranged at intervals. The extending direction of the first section and the third section is perpendicular to the plugging direction of the module, so that gaps are formed at two ends of the connecting part in the plugging direction of the module.

The connecting part is made of cast steel, rubber, plastic, die-cast zinc, die-cast aluminum and the like. The fixed part and the movable part can be made of the same material as the connecting part.

In one embodiment, the fixing portion includes a plate body, one end of the connecting portion is connected to the plate body, and the plate body is provided with a locking hole for allowing a first fastening member to pass through to fix the plate body to the module. The number of the locking holes is multiple, and the locking holes are arranged on the plate body at intervals so as to more firmly fix the plate body to the module.

In an embodiment, the fixing portion further includes a positioning column, the positioning column is connected to one side of the plate body, which is far away from the connecting portion, and the positioning column is used for positioning the plate body and the module. The number of the positioning columns is multiple, and the plurality of the positioning columns are arranged on the plate body at intervals so as to more accurately position the plate body to the module.

In one embodiment, the movable portion is provided with a body and a locking shaft connected with the body, the other end of the connecting portion is connected with the body, and the rotating portion is rotatably sleeved on the outer side of the locking shaft. The rotating part is provided with a rotating hole, and the locking shaft extends into the rotating hole. The locking shaft is the rotating shaft of the wrench.

In one embodiment, a fastening hole is formed in the lock shaft, and a second fastening member extends into the fastening hole to fix the rotating portion to the lock shaft.

On the other hand, the embodiment of the invention further provides a plug assembly, which comprises a module and the above-mentioned plug-in device, wherein the module comprises a frame body for bearing the first connector, and the fixing part is fixed on the frame body. The frame body is provided with a through hole corresponding to the locking hole of the fixing piece and a positioning hole corresponding to the positioning column. The plug assembly can eliminate the fit clearance between the first connector and the second connector, so that the first connector and the second connector can be completely inserted, and the first connector and the second connector cannot be damaged due to excessive extrusion.

In one embodiment, the frame body includes two opposite side walls and a bottom wall connected between the two side walls, the side walls extend along the insertion and extraction direction of the module, and the fixing portion is fixed on the side walls. The number of the extraction assistors is two, and the fixing parts of the two extraction assistors are respectively fixed on the two side walls.

In another aspect, an embodiment of the present invention further provides a communication device, which includes a module, a chassis, and the above-mentioned pulling aid. The communication equipment can eliminate the fit clearance between the first connector and the second connector to realize complete insertion of the first connector and the second connector, and the first connector and the second connector cannot be damaged due to excessive extrusion.

Drawings

Fig. 1 is a schematic structural diagram of a communication device provided in the present invention;

FIG. 2 is a schematic diagram of a mating structure of a plug and a module of the communication device shown in FIG. 1;

FIG. 3 is a schematic diagram of a portion of the structure shown in FIG. 2;

FIG. 4 is a schematic view of another angle of the structure shown in FIG. 3;

FIG. 5 is a schematic structural view of a fixing member of the extraction aid shown in FIG. 2;

figure 6 is a schematic view of an alternate angle configuration of the anchor shown in figure 5.

Detailed Description

The embodiments of the present invention will be described below with reference to the drawings.

Referring to fig. 1 to fig. 6, an embodiment of the invention provides a communication device 100, where the communication device 100 includes a module 1, a chassis 2, and a pulling aid 3. The module 1 comprises a first connector 11 and the chassis 2 comprises a second connector 21. The module 1 is a pluggable module. The plug-in aid 3 is used for realizing the plug-in and pull-out of the module 1 relative to the case 2. The embodiment of the invention also provides a plug assembly, which comprises the module 1 and the plug assistant device 3.

The extraction aid 3 comprises a fixing piece 31 and a wrench 32. The fixing member 31 includes a fixing portion 311, a connecting portion 312, and a movable portion 313 connected in sequence. The fixing portion 311 is used to fix the module 1. The connecting portion 312 has an elastic deformation capability. The connecting portion 312 is elastically deformed by an external force, so that the movable portion 313 moves relative to the fixed portion 311. The wrench 32 includes an engaging portion 321, a rotating portion 322, and a handle portion 323 connected in this order. The rotating part 322 is rotatably connected to the movable part 313. That is, the rotating portion 322 is connected to the movable portion 313, and the rotating portion 322 can rotate relative to the movable portion 313, and the movable portion 313 provides a rotating shaft 320 for the wrench 32. The engaging portion 321 is used to engage with the housing 2. The handle portion 323 is used for driving the module 1 to move relative to the chassis 2 under an external force, so that the first connector 11 is plugged into or separated from the second connector 21. The first connector 11 and the second connector 21 are plugged into each other to realize electric transmission and/or signal transmission.

In this embodiment, in order to eliminate a mating gap (mating) between the first connector 11 and the second connector 21 to ensure the quality of signal transmission between the first connector 11 and the second connector 21, the design dimensions of the module 1, the chassis 2, and the plug assist device 3 that are mated with each other satisfy: when the module 1 is fully inserted into the chassis 2, the first connector 11 and the second connector 21 are fully plugged, and there is a designed interference amount between the first connector 11 and the second connector 21. The connecting portion 312 has an elastic deformation capability, so that the movable portion 313 provides a floating rotation shaft 320 for the wrench 32. In the process of inserting the module 1 into the chassis 2, if there is hard interference caused by the design interference amount, the machining tolerance, and the assembly tolerance, after the first connector 11 is completely inserted into the second connector 21, the first connector 11 and the second connector 21 are pressed against each other to form an acting force, so that the connecting portion 312 is elastically deformed, the movable portion 313 moves relative to the fixed portion 311, so that the rotating shaft 320 of the wrench 32 moves relative to the module 1, and therefore the fixing member 31 can absorb the hard interference, so that the module 1 is not further inserted into the chassis 2, and the first connector 11 and the second connector 21 do not have a fit gap, complete insertion is achieved, and are not damaged due to excessive pressing. Meanwhile, the elastic deformation of the connection portion 312 can also play a role in buffering during the plugging and unplugging process of the first connector 11 and the second connector 21, so as to further protect the first connector 11 and the second connector 21. The plug-in assisting device 3 in the embodiment of the application has the advantages of simple structure, small occupied space, low cost and good stability, and can be popularized on various plug-in components and communication equipment 100.

It will be appreciated that the designed amount of interference between the first connector 11 and the second connector 21 may be one or more sources of mating interference, such as: interference fit between the engaging portion 321 and the chassis 2, interference fit between the first connector 11 and the module 1, interference fit between the second connector 21 and the chassis 2, interference fit between the fixing portion 311 of the fixing member 31 and the module 1, and the like. The hard interference is an interference amount that is not absorbed by a dedicated elastic member but is absorbed by deformation of the module 1, deformation of the chassis 2, or deformation of the extraction aid 3. The elastic deformation force of the connecting portion 312 is greater than the insertion and extraction force of the module 1, so that the insertion and extraction actions of the module 1 can be smoothly performed, and meanwhile, the elastic deformation force of the connecting portion 312 is also less than the deformation force of the module 1 (including the first connector 11), the deformation force of the case 2 (including the second connector 21), and the deformation force of the wrench 32, so that the connecting portion 312 deforms prior to the module 1, the case 2, and the wrench 32, so as to protect the module 1, the case 2, and the wrench 32. A user can push the handle portion 323 to drive the module 1 to be inserted into the case 2, so that the first connector 11 and the second connector 21 are plugged into each other, or pull the handle portion 323 to drive the module 1 to be separated from the case 2, so that the first connector 11 and the second connector 21 are separated from each other.

Optionally, the first connector 11 and the second connector 21 are oppositely arranged to be plugged with each other. The first connector 11 may be a male connector (or a female connector) of a pluggable terminal, and the second connector 21 may be a female connector (or a male connector) of a pluggable terminal. After the first connector 11 and the second connector 21 are plugged into each other, corresponding transmission operations are performed according to the requirements of the pluggable module 1.

Referring to fig. 1 to 6, as an alternative embodiment, two ends of the connecting portion 312 form a gap in the inserting and pulling direction X of the module 1. The two ends of the connecting portion 312 are connected to the fixed portion 311 and the movable portion 313, respectively. The plugging direction X of the module 1 is the direction in which the module 1 is plugged into the chassis 2 or unplugged from the chassis 2. The clearance is reduced under the action of external force to directly absorb the design interference amount, the design tolerance and the assembly tolerance, so that the deformation difficulty of the connecting part 312 is small, and the first connector 11 and the second connector 21 are not easily damaged. Of course, in other embodiments, there may be no gap between the two ends of the connection portion 312 in the inserting and extracting direction X of the module 1, and the connection portion 312 generates a gap under an external force to absorb the design interference amount, the design tolerance and the assembly tolerance.

Optionally, the connecting portion 312 is integrally formed with the fixing portion 311 and the movable portion 313. In this case, the fixing member 31 is integrally formed, so that the connection between the connection part 312 and the fixed part 311 and the movable part 313 can be more firmly achieved while the difficulty and cost of processing the fixing member 31 are reduced.

Optionally, the connecting portion 312 is an elastic arm. The elastic arm is U-shaped, Z-shaped, C-shaped or S-shaped.

Optionally, the connecting portion 312 includes a first section, a second section and a third section, which are connected in sequence, the first section is connected to the fixing portion 311, the third section is connected to the movable portion 313, and the second section is made of an elastic material. The first section is parallel to the third section, so that two ends of the connecting portion 312 are spaced apart. The extending direction of the first section and the third section is perpendicular to the inserting and pulling direction X of the module 1, so that a gap is formed between two ends of the connecting portion 312 in the inserting and pulling direction X of the module 1. For example, the connecting portion 312 has a U-shape.

Optionally, the connection portion 312 is made of cast steel, rubber, plastic, die-cast zinc, die-cast aluminum, or the like. The fixed portion 311 and the movable portion 313 may be made of the same material as the connecting portion 312.

Referring to fig. 1 to 6, as an alternative embodiment, the fixing portion 311 includes a plate body 3111, and one end of the connecting portion 312 is connected to the plate body 3111. The plate body 3111 is provided with a locking hole 3112 for allowing a first fastener 33 to pass through to fix the plate body 3111 on the module 1.

As shown in fig. 4 and 6, the number of the locking holes 3112 is plural, and the locking holes 3112 are arranged on the plate body 3111 at intervals to more firmly fix the plate body 3111 to the module 1.

Optionally, an internal thread is disposed in the locking hole 3112, the first fastening member 33 has an external thread, and the external thread of the first fastening member 33 matches the internal thread of the locking hole 3112. The first fastening member 33 may be a screw, a bolt, or the like. Of course, in other embodiments, the locking hole 3112 may be a smooth hole, and the first fastening member 33 may be a rivet.

Optionally, the fixing portion 311 further includes a positioning post 3113. The positioning post 3113 is connected on a side of the plate 3111 away from the connecting portion 312, and the positioning post 3113 is used for positioning the plate 3111 and the module 1. The module 1 is provided with a positioning hole matched with the positioning column 3113, and the positioning column 3113 extends into the positioning hole to realize the positioning of the fixing member 31 and the module 1. The positioning post 3113 may be integrally formed with the plate body 3111.

As shown in fig. 4 and 6, the number of the positioning posts 3113 is plural, and the positioning posts 3113 are arranged on the plate 3111 at intervals to more accurately position the plate 3111 to the module 1.

For example, the number of the positioning posts 3113 is two, the number of the positioning holes is two, the two positioning posts 3113 and the two positioning holes are arranged in a matrix, the two positioning posts 3113 are arranged on one diagonal line, and the two positioning holes are arranged on the other diagonal line.

Referring to fig. 1 to 6, as an alternative embodiment, the movable portion 313 includes a main body 3131 and a locking shaft 3132 connected to the main body 3131, the other end of the connecting portion 312 is connected to the main body 3131, and the rotating portion 322 is rotatably sleeved on the outer side of the locking shaft 3132. The rotating portion 322 is provided with a rotating hole into which the locking shaft 3132 extends. The locking shaft 3132 serves as a rotation shaft 320 of the wrench 32.

In one embodiment, the body 3131 has a cylindrical shape, the locking shaft 3132 is connected to an end surface of the body 3131, and the connecting portion 312 is connected to a side surface of the body 3131.

Alternatively, a fastening hole is formed in the fastening shaft 3132, and the second fastening member 34 is inserted into the fastening hole to limit the rotating portion 322 on the fastening shaft 3132. For example, the second fastening member 34 includes a cylindrical portion extending into the fastening hole to fix the second fastening member 34 to the attaching shaft 3132, and a head portion coupled to the cylindrical portion to limit the rotation portion 322 to prevent the rotation portion 322 from being detached from the attaching shaft 3132.

In one embodiment, the fastening hole is internally threaded and the second fastener 34 is a screw. In another embodiment, second fastener 34 is snap-fit coupled to attachment shaft 3132 via the fastener holes.

Referring to fig. 1 to fig. 6, as an alternative embodiment, the module 1 includes a frame 12 for carrying the first connector 11, and the fixing portion 311 is fixed on the frame 12. The frame body 12 is provided with a through hole corresponding to the locking hole 3112 of the fixing member 31 and a positioning hole corresponding to the positioning post 3113. An internal thread is arranged in the through hole, and the internal thread of the through hole is matched with the external thread of the first fastening piece 33.

The module 1 further comprises a circuit board 13, and the circuit board 13 is accommodated in the frame 12. The first connector 11 is electrically connected to the circuit board 13. The first connector 11 may be fixed to the circuit board 13 or the frame 12. The circuit board 13 is also provided with other components 14, such as a processor, a memory, etc.

Optionally, the frame 12 includes two opposite side walls 121 and a bottom wall 122 connected between the two side walls 121, and the side walls 121 extend along the inserting and extracting direction X of the module 1. The fixing portion 311 is fixed to the sidewall 121. The side wall 121 includes an inner surface facing the other side wall 121 and an outer surface facing away from the other side wall 121. The fixing portion 311 may be fixed on the inner surface or the outer surface. In this embodiment, the fixing portion 311 is fixed on the sidewall 121 by assembling, and in another embodiment, the fixing portion 311 may also be integrally formed with the sidewall 121.

Optionally, the number of the extraction assistors 3 is two, and the fixing portions 311 of the two extraction assistors 3 are respectively fixed on the two side walls 121.

Optionally, the wrench 32 and the fixing portion 311 are respectively located on two sides of the bottom wall 122. For example, the fixing portion 311 is located on the upper side of the bottom wall 122, and the wrench 32 is located on the lower side of the bottom wall 122. A notch is arranged on the bottom wall 122, and the notch penetrates from the upper side to the lower side.

In one embodiment, the locking shaft 3132 of the movable portion 313 extends from the upper side to the lower side through the notch, so that the wrench 32 at the lower side can be sleeved on the outer side of the locking shaft 3132 extending to the lower side.

In another embodiment, the rotating portion 322 is provided with a protrusion extending from the lower side to the upper side through the gap, and the protrusion is sleeved on the outer side of the locking shaft 3132 on the upper side.

Optionally, the frame 12 further includes a front wall 123 connecting the two side walls 121 and the bottom wall 122, and the front wall 123 is connected to a side of the bottom wall 122 away from the first connector 11. The fixing portion 311 may be fixed to the front wall 123.

Referring to fig. 1 to 4, as an alternative embodiment, an opening 22 is formed on the housing 2, and the engaging portion 321 extends into the opening 22 to achieve the matching of the wrench 32 and the housing 2.

In other embodiments, a protrusion is disposed on the chassis 2, and the engaging portion 321 abuts against the protrusion to realize the matching between the wrench 32 and the chassis 2.

The case 2 includes a side bracket 23 and a rear bracket 24, the opening 22 is disposed on the side bracket 23, and the second connector 22 is fixed to the rear bracket 24.

The chassis 2 further includes a back panel 25, the back panel 25 is fixed to the rear bracket 24, and the second connector is fixed to the back panel 25 and electrically connected to the back panel 25. The back plate 25 may be fixed to the rear bracket 24 by a third fastener 26.

Claims

1. The utility model provides a pull-out aid for realize the plug of the relative quick-witted case of module, the module includes first connector, the machine case includes the second connector, a serial communication port, pull-out aid includes mounting and spanner, the mounting is including the fixed part, connecting portion and the movable part that connect gradually, the fixed part is used for fixing in the module, connecting portion have elastic deformation ability, so that the movable part can be relative under the exogenic action the fixed part removes, the spanner is including the block portion, rotation portion and the handle portion that connect gradually, rotation portion rotates and connects the movable part, block portion be used for with the machine case cooperation, the handle portion is used for driving under the exogenic action the module is relative the machine case removes, so that first connector with the second connector is pegged graft or breaks away from.

2. The extraction aid according to claim 1, wherein both ends of the connecting portion form a gap in an insertion and extraction direction of the module.

3. The extraction aid of claim 2, wherein the connecting portion is integrally formed with the fixed portion and the movable portion.

4. A pulling aid according to any one of claims 1 to 3, wherein the fixing portion comprises a plate body, one end of the connecting portion is connected to the plate body, and the plate body is provided with a locking hole for allowing a first fastener to pass through to fix the plate body to the module.

5. The extraction aid according to claim 4, wherein the fixing portion further comprises a positioning post, the positioning post is connected to a side of the plate body away from the connecting portion, and the positioning post is used for positioning the plate body and the module.

6. The extraction aid according to any one of claims 1 to 3, wherein the movable portion is provided with a body and an attachment shaft connected to the body, the other end of the connecting portion is connected to the body, and the rotating portion is rotatably fitted around the outer side of the attachment shaft.

7. The extraction aid of claim 6, wherein a fastening hole is formed in the locking shaft, and a second fastening member extends into the fastening hole to restrain the rotating portion on the locking shaft.

8. A plug assembly, comprising a module and the plug aid of any one of claims 1 to 7, wherein the module comprises a frame for carrying the first connector, and the fixing portion is fixed on the frame.

9. The pluggable assembly of claim 8, wherein the frame comprises two opposite sidewalls and a bottom wall connected between the two sidewalls, the sidewalls extending along the plugging direction of the module, and the fixing portion is fixed on the sidewalls.

10. A communication device, comprising a module, a chassis and the pull-out aid according to any one of claims 1 to 7.