CN110658590A - Connector and push-and-pull piece thereof - Google Patents
Connector and push-and-pull piece thereof Download PDFInfo
- Publication number
- CN110658590A CN110658590A CN201811570515.XA CN201811570515A CN110658590A CN 110658590 A CN110658590 A CN 110658590A CN 201811570515 A CN201811570515 A CN 201811570515A CN 110658590 A CN110658590 A CN 110658590A
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- push
- connector
- plug
- stop
- shell
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3869—Mounting ferrules to connector body, i.e. plugs
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention relates to a connector and a push-pull piece thereof, the connector comprises a plug monomer and a shell sleeved outside the plug monomer, the front plugging end of the plug monomer is provided with a spring arm used for locking the connector and an adaptive connector, a push-pull piece which can move back and forth is arranged on the shell or between the shell and the single plug body, the front end of the push-pull piece is provided with an elastic arm connecting part which is used for driving the elastic arm of the single plug body to move so as to lock and unlock the connector and the adaptive connector, the push-pull piece is provided with an unlocking stroke which is stressed to move back and forth, the push-pull piece is provided with a limiting part, the limiting part is correspondingly provided with a movable stroke which reciprocates back and forth along with the push-pull piece, a stopping part is arranged behind the movable stroke of the limiting part on the shell and/or the plug single body, and the stopping part is used for being matched with the limiting part in a stopping way when the limiting part moves to the rear of the movable stroke.
Description
Technical Field
The invention relates to a connector and a push-pull piece thereof.
Background
Along with the development of communication technology, the data center has higher and higher requirements on high-density optical fiber connectors, and is limited by a narrow installation space, and the following problems can occur in the installation operation of the common optical fiber connectors: 1) due to the narrow space, the plugging and unplugging of the connector is difficult to realize by single manual operation; 2) the installation of the connector in an extremely narrow space must be accomplished with the aid of other tools, which increases the cost; 3) during the use of the tool, the optical fiber connector is easily damaged in order to realize the butt joint and the unlocking of the optical fiber connector in a limited space.
The utility model discloses a grant utility model patent that bulletin number is CN206696473U discloses a LC duplex connector, this duplex connector's front end is provided with two plug monomers, the cover is equipped with the shell in the free outside cover of plug, it pushes away and draws the piece to be equipped with one along the fore-and-aft direction removal on the shell, be provided with the bullet arm (press the handle and the barb promptly) at the free front end of plug, be provided with the branch the same with plug monomer quantity at the front end of push-and-pull piece, be provided with the drag hook that links to each other with the bullet arm at the front end of each branch, during the use, pull the push-and-pull piece backward, the drag hook that pushes away and draws the piece is pulling down and pressing the handle, with connector. The push-pull piece has an unlocking stroke in the process of forced forward and backward movement, when the push-pull piece is positioned in the unlocking stroke, the push-pull piece can move backwards relative to the shell, when the push-pull piece moves to the rear end of the unlocking stroke, the push-pull piece unlocks the elastic arm from the adaptive connector, and then the push-pull piece and the shell synchronously move backwards to pull out the connector from the adaptive connector.
However, in actual use, sometimes the single plug is stuck in the adapter connector and cannot be pulled out backward, and at this time, an operator may increase an acting force for pulling the push-pull member backward in order to unlock the connector and the adapter connector. In addition, even if the branch is supported by other materials which are not easy to be broken, the backward gradually increased acting force can finally act on the elastic arm of the plug single body, and the elastic arm is easy to be pressed down too much to cause damage.
Disclosure of Invention
The invention aims to provide a connector, which aims to solve the technical problem that when a plug monomer is stuck in an adaptive connector and then a push-pull piece is continuously pulled backwards, the push-pull piece or an elastic arm is easily damaged in the prior art; a push-pull member for a connector is also provided.
In order to achieve the purpose, the technical scheme of the connector is as follows: a connector comprises a single plug body and a shell sleeved outside the single plug body, wherein an elastic arm used for locking the connector and an adaptive connector is arranged at the front plugging end of the single plug body, a push-pull piece capable of moving back and forth is arranged on the shell or between the shell and the single plug body, the front end of the push-pull piece is provided with an elastic arm connecting portion used for driving the elastic arm of the single plug body to move so as to lock and unlock the connector and the adaptive connector, the push-pull piece is provided with an unlocking stroke stressed to move back and forth, a limiting portion is arranged on the push-pull piece, the limiting portion correspondingly has a moving stroke moving back and forth along with the push-pull piece, and a blocking portion is arranged behind the moving stroke of the limiting portion on the shell and/or the single plug body and used for blocking and matching with the limiting portion when the limiting portion moves to the rear of the moving stroke.
The invention has the beneficial effects that: when the plug is normally used, the push-pull piece moves in a reciprocating manner in the unlocking stroke, the limiting part moves in a reciprocating manner in the moving stroke, when the plug monomer is clamped in the adapter connector and is prevented from being pulled out backwards from the adapter connector, if an operator continues to pull the push-pull piece backwards, the limiting part on the push-pull piece moves to the back of the moving stroke and is in blocking fit with the blocking part on the shell and/or the plug monomer along the front-back direction, the push-pull piece and the limiting part are prevented from continuing to move backwards, further, the elastic arm on the plug monomer is prevented from being pulled backwards continuously to cause damage, and meanwhile, the situation that two ends of the plug monomer are pulled seriously and broken forcibly is also avoided.
The push-pull piece is convexly provided with a stop block, the shell and/or the plug monomer are/is provided with a stop groove or a stop hole for the stop block to extend into, the stop part is a stop groove wall or a stop hole wall correspondingly arranged on the stop groove or the stop hole, and the limiting part is an end face arranged at the rear end of the stop block.
The stop groove or the stop hole is also provided with a guide groove wall or a guide hole wall which is used for being matched with the stop block in a guiding and moving manner in the front and back direction.
The connector comprises a plurality of plug single bodies which are arranged side by side from left to right, the shell is a jacket which is sleeved outside each plug single body to assemble each plug single body together, the push-pull piece comprises a push-pull handle at the rear end and a plurality of branches which are arranged side by side from left to right at the front end, the front end of each branch is provided with the elastic arm connecting part, and the stop blocks are correspondingly arranged on the branches.
The branch is an elastic branch pressed between the shell and the plug monomer.
The technical scheme of the push-pull piece for the connector is as follows: a push-pull piece for a connector comprises a push-pull handle at the rear end, wherein the front end of the push-pull piece is provided with an elastic arm connecting part which is used for driving an elastic arm of a plug monomer to move so as to lock and unlock the connector and an adaptive connector, the push-pull piece is provided with an unlocking stroke which is stressed to move back and forth in a reciprocating mode, a limiting part is arranged on the push-pull piece, the limiting part correspondingly has a moving stroke which moves back and forth along with the push-pull piece, and the limiting part is used for being in blocking fit with a blocking part on a connector shell and/or the plug monomer along the front and back direction when the limiting part moves to the rear of the moving stroke.
The push-pull piece is convexly provided with a stop block which is used for extending into a stop groove or a stop hole arranged on the shell and/or the plug monomer, and the rear end surface of the stop block forms the limiting part which is used for being in stop fit with the wall of the stop groove or the wall of the stop hole.
The stop block is provided with a guide side face which is used for being matched with the front and back directions of the guide groove wall of the stop groove or the guide hole wall of the stop hole.
The push-pull piece comprises a plurality of branches which are arranged side by side from left to right at the front end, the front end of each branch is provided with the elastic arm connecting part, and the stop blocks are respectively arranged on the branches.
The branch is an elastic branch which is pressed between the shell and the plug monomer.
Drawings
FIG. 1 is a schematic view of embodiment 1 of the connector of the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a schematic view of the rear housing of FIG. 2;
FIG. 4 is a schematic view of the push-pull rod of FIG. 2;
FIG. 5 is a schematic diagram of the upper block of FIG. 2;
FIG. 6 is a schematic view of the lower segment of FIG. 2;
fig. 7 is a schematic view of embodiment 2 of the connector of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
In embodiment 1 of the connector of the present invention, as shown in fig. 1 to 6, the connector in this embodiment is an optical fiber connector, the connector includes two plug units 1 arranged side by side along a left-right direction, each plug unit extends along a front-back direction, and the two plug units are insulated from each other.
Each plug monomer all includes plug housing, is fixed with the bullet arm 6 at plug housing's front end, and the front end of bullet arm is fixed on plug housing, and the rear end extends to the back top, has formed elastic wing form rear end, and the bullet arm recess (not mark in the picture) that the direction extends about the edge is seted up to the rear end of bullet arm, and the bullet arm recess has curved cell wall, and integrated into one piece has the flange on the cell wall of rear side, prevents that push-and-pull 4 from deviating from. The elastic arms 6 are fixedly provided with clamping convex blocks 61, and the clamping convex blocks 61 protrude outwards from two sides of the middle section of each elastic arm so as to be buckled on the shell of the adaptive connector.
In this embodiment, the plug housing includes procapsid 2 and the back casing 3 of arranging from beginning to end, wherein, foretell bullet arm 6 is fixed in the front end of procapsid 2, procapsid 2 and back casing 3 are by preceding to back in proper order being equipped with contact pin 7 and spring 10, adapter sleeve 11 has been arranged at the rear end of spring 10, all two elastic buckle around protruding being provided with on the side about the adapter sleeve, the draw-in groove has been seted up to corresponding on the side about procapsid 2 and back casing 3, during the use, can be in the same place procapsid 2 and back casing 3 fixed assembly through adapter sleeve 11. A crimping sleeve 12 is further arranged behind the connecting sleeve 11, in particular, during installation, the crimping sleeve 12 is pressed in the rear shell 3, and a cable sheath 5 is further connected to the rear end of the crimping sleeve 12. During assembly, the contact pin, the spring, the connecting sleeve, the crimping sleeve and the cable sheath are sequentially assembled, and the front shell and the rear shell are assembled together through the connecting sleeve. When not inserting the cooperation with the adapter connector, install dustproof cap 8 on preceding casing, protect the contact pin.
During the in-service use, a plurality of plug monomers are array and arrange and insert in the adapter connector, in order to realize the locking and the unblock of plug monomer and adapter connector, realize remote control locking and unblock. The jacket 9 is fixedly sleeved outside the rear shell, the push-pull piece 4 is movably installed on the jacket 9 along the front-rear direction in a guiding mode, the push-pull piece 4 is connected with the elastic arm 6 in a transmission mode, and the connector and the adaptive connector are locked and unlocked. The jacket 9 has a through-hole extending forward and backward for two plug units to pass through.
In this embodiment, the jacket 9 includes an upper block 91 and a lower block 92 assembled in the vertical direction, in which the lower block 92 has a U-shaped structure disposed upward, and the upper block 91 has an M-shaped structure disposed downward. Go up the both sides of piecemeal 91 and have two downwardly extending's last connection arm board, the outside of going up the connection arm board is equipped with the buckle (not marked in the figure), the both sides correspondence of piecemeal 92 has two lower connection arm boards that upwards extend down, the draw-in groove has been seted up on the lower connection arm board, in this embodiment, go up, lower connection arm board is the elasticity arm board, during the use, can insert the piecemeal down with last piecemeal through the cooperation of buckle and draw-in groove, realize the equipment and the suit of two piecemeals in two free outsides of plug. In other embodiments, only one of the upper and lower cooperating attachment blades may be resilient. Of course, in other embodiments, the connection manner between the upper and lower blocks may be designed according to actual situations, such as pin connection, and the number and arrangement manner of the blocks may be selected according to actual situations.
In the upper block 91, in addition to the two upper connecting arm plates, a partition plate extending downward is provided between the two upper connecting arm plates, and the partition plate functions to separate two adjacent plug units. A plug single body penetrating groove for the plug single body to penetrate is formed between the partition plate and the two upper connecting arm plates. Vertical convex strips 913 extending in the up-down direction are protrudingly provided on the partition board and the upper connection arm plate of the upper block 91 (in this embodiment, the partition board and one of the upper connection arm plates are provided with vertical convex strips, and in other embodiments, the two vertical convex strips may be provided on the two upper connection arm plates, respectively, or the number of the vertical convex strips may be increased or decreased, and the positions where the vertical convex strips are provided may be changed). The left side surface and the right side surface of the rear shell corresponding to the plug monomer are provided with vertical through grooves 31 extending in the up-down direction, during assembly, the vertical convex strips 913 of the upper block are inserted into the vertical through grooves 31 of the rear shell from top to bottom, and then are fixedly connected with the lower block through the buckles and the clamping grooves, so that the upper block, the rear shell and the lower block are fixedly connected and can move back and forth together. In other embodiments, the fixed connection between the upper block, the lower block and the plug housing may be in other manners, such as forming a stopper on the inner side surface of the upper block and the inner side surface of the lower block, forming a groove on the corresponding end surface of the plug housing, and implementing insertion fitting.
The bottom of each single plug insertion slot is provided with a transverse through slot 911 extending back and forth, and the transverse through slot 911 penetrates through the upper block 91 along the back and forth direction. A stop hole 912 is formed at the bottom of each transverse through groove and vertically penetrates through the bottom edge of the upper block, and the rear end hole wall of the stop hole 912 forms a stop hole wall, namely a stop part. In other embodiments, a stop groove may be formed at the bottom of the transverse through groove, and a rear end groove wall of the stop groove forms a stop groove wall, i.e., a stop portion.
The structure of the push-pull piece is shown in fig. 4, the push-pull piece 4 comprises a push-pull piece head and a push-pull handle 43 which are arranged in a front-back manner, the push-pull piece head comprises a push block 41 fixed at the front end of a tail handle of the push-pull piece, two branches are arranged at intervals at the front end of the push block 41 along the left-right direction, the two branches extend forwards from the push block for a certain distance and then change direction to extend upwards, so that each branch has a horizontal section 44 and a vertical section 42, wherein each horizontal section of each branch corresponds to a stop block 45, and the width of each stop block 45 along the left-right direction is equal to the aperture of the stop hole 912 along the left. The vertical section of each branch is respectively provided with a branch hole 421 which penetrates through the vertical section along the front-back direction, and when the connector is used, the branch holes 421 are correspondingly sleeved in the elastic arm grooves of the corresponding plug monomers. The branches in this embodiment are made of an elastic material.
The using process of the invention is as follows: and assembling all parts of the single plug, and mutually clamping the rear shell, the connecting sleeve and the front shell together. Then, the elastic arm 6 of the single plug is sleeved in the branch hole 421 of the push-pull member, so that the upper end hole edge of the branch hole is clamped in the elastic arm groove. And then the lower block of the jacket is placed below the rear shell, and the upper block is buckled on the lower block. In the buckling process, the stop hole of the upper block is sleeved on the stop block of the push-pull piece, the horizontal section of the push-pull rod is embedded into the transverse through groove of the upper block, and the vertical raised line on the upper block and the vertical through groove on the rear shell are aligned during buckling to realize fixed connection. Therefore, the plug single body, the jacket and the push-pull piece are connected together, the push-pull piece can move in the front-back direction, hole walls in the left-right direction of the stop hole are used for being matched with the stop block in the front-back guiding mode to guide the push-pull piece to move back and forth, and the hole walls form guide hole walls. When the connector is inserted into the corresponding adaptive connector, the push-pull handle is pushed forwards, the clamping sleeve and the plug single body are pushed forwards through the push block 41 and the stop of the upper block, and the clamping convex block of the elastic arm is clamped into the shell of the adaptive connector. When the plug is unlocked, the tail handle is pulled backwards, the two branches of the push-pull piece pull the elastic arm backwards and press the right end of the elastic arm downwards, so that the clamping convex block of the elastic arm is separated from the shell of the adaptive connector, and the whole plug single body is pulled backwards through the matching of the stop block and the stop hole.
When the plug single body is blocked from being pulled out of the adaptive connector, the hole wall at the rear end of the stop hole is in stop fit with the stop block, and the push-pull piece is prevented from being damaged or the elastic arm is prevented from being damaged due to the fact that the push-pull piece moves backwards for an overlarge distance.
In this embodiment, the stroke of the push-pull piece moving backwards and unlocking the connector and the adapter connector in the normal plugging process is an unlocking stroke, and the stop block moving backwards along with the push-pull piece is a movable stroke. The rear end hole wall of the stopping hole is positioned behind the movable stroke of the stop block. In this embodiment, the rear end surface of the stopper constitutes a stopper.
In the invention, the push-pull piece is arranged between the jacket and the plug monomer, and a guide structure and a compression structure are not required to be additionally arranged on the jacket, so that the overall structure of the connector is simpler. In addition, in the invention, the clamping sleeve and the push-pull piece are in stop fit through the stop block and the stop slot or the stop hole, and the push-pull piece is more convenient to assemble by matching with the split arrangement of the upper block and the lower block. In other embodiments, the push-pull member may be disposed on a collet, the collet forming the housing.
In this embodiment, the plurality of vertical branches and the branch holes provided in the branches constitute the elastic arm connecting portion.
As shown in fig. 7, a specific embodiment 2 of the connector of the present invention is different from embodiment 1 in that the number of the plug units in this embodiment is one, a housing 9 is sleeved outside the plug unit, and a push-pull member 4 is disposed between the housing 9 and the plug unit.
In the embodiment of the push-pull member for a connector according to the present invention, the structure of the push-pull member is the same as that of the above-mentioned embodiment, and the details thereof are not repeated.
Claims (10)
1. The utility model provides a connector, includes the plug monomer and the suit in the free outside shell of plug, the free preceding grafting end of plug is provided with the bullet arm that is used for making connector and adapter connector locking, but arrange the push-and-pull piece that can follow fore-and-aft direction reciprocating motion on the shell or between shell and the plug monomer, the front end of push-and-pull piece has the bullet arm connecting portion that is used for driving the free bullet arm action of plug and in order to lock and unlock connector and adapter connector, the push-and-pull piece has atress reciprocating motion's unblock stroke, its characterized in that: the shell and/or the plug single body is provided with a stopping part behind the moving stroke of the limiting part, and the stopping part is used for being matched with the limiting part in a stopping manner along the front-back direction when the limiting part moves to the rear of the moving stroke.
2. The connector of claim 1, wherein: the push-pull piece is convexly provided with a stop block, the shell and/or the plug monomer are/is provided with a stop groove or a stop hole for the stop block to extend into, the stop part is a stop groove wall or a stop hole wall correspondingly arranged on the stop groove or the stop hole, and the limiting part is an end face arranged at the rear end of the stop block.
3. The connector of claim 2, wherein: the stop groove or the stop hole is also provided with a guide groove wall or a guide hole wall which is used for being matched with the stop block in a guiding and moving manner in the front and back direction.
4. The connector according to claim 2 or 3, wherein: the connector comprises a plurality of plug single bodies which are arranged side by side from left to right, the shell is a jacket which is sleeved outside each plug single body to assemble each plug single body together, the push-pull piece comprises a push-pull handle at the rear end and a plurality of branches which are arranged side by side from left to right at the front end, the front end of each branch is provided with the elastic arm connecting part, and the stop blocks are correspondingly arranged on the branches.
5. The connector of claim 4, wherein: the branch is an elastic branch pressed between the shell and the plug monomer.
6. The utility model provides a connector is with pushing and pulling piece, includes the push-and-pull handle of rear end, and the front end of pushing and pulling piece has the bullet arm connecting portion that is used for driving the free bullet arm action of plug in order to lock and unlock connector and adaptation connector, pushing and pulling piece has atress reciprocating motion's unblock stroke, its characterized in that around: the push-pull piece is provided with a limiting part, the limiting part correspondingly has a moving stroke reciprocating back and forth along with the push-pull piece, and the limiting part is used for being matched with the stopping part on the connector shell and/or the plug monomer in a stopping manner along the back and forth direction when the limiting part moves to the back of the moving stroke.
7. The push-pull member for a connector according to claim 6, wherein: the push-pull piece is convexly provided with a stop block which is used for extending into a stop groove or a stop hole arranged on the shell and/or the plug monomer, and the rear end surface of the stop block forms the limiting part which is used for being in stop fit with the wall of the stop groove or the wall of the stop hole.
8. The push-pull member for a connector according to claim 7, wherein: the stop block is provided with a guide side face which is used for being matched with the front and back directions of the guide groove wall of the stop groove or the guide hole wall of the stop hole.
9. The push-pull member for a connector according to claim 7 or 8, wherein: the push-pull piece comprises a plurality of branches which are arranged side by side from left to right at the front end, the front end of each branch is provided with the elastic arm connecting part, and the stop blocks are respectively arranged on the branches.
10. The push-pull member for a connector according to claim 9, wherein: the branch is an elastic branch which is pressed between the shell and the plug monomer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018106870891 | 2018-06-28 | ||
| CN201810687089 | 2018-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110658590A true CN110658590A (en) | 2020-01-07 |
Family
ID=69028757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811570515.XA Pending CN110658590A (en) | 2018-06-28 | 2018-12-21 | Connector and push-and-pull piece thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110658590A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111999819A (en) * | 2020-08-21 | 2020-11-27 | 华为技术有限公司 | Optical fiber connector assembly, label system, label module and identification method |
| CN114185136A (en) * | 2021-12-06 | 2022-03-15 | 深圳太辰光通信股份有限公司 | Optical fiber connector of alternating switch locking |
| CN114447704A (en) * | 2022-01-19 | 2022-05-06 | 中航光电科技股份有限公司 | Push-pull plug with locking device |
| CN114447670A (en) * | 2022-01-19 | 2022-05-06 | 中航光电科技股份有限公司 | Multi-channel push-pull plug |
| EP4099068A1 (en) * | 2021-06-02 | 2022-12-07 | Huizhou Fibercan Industrial Co., LTD | High-density connector |
| CN111999819B (en) * | 2020-08-21 | 2024-06-25 | 华为技术有限公司 | Label system and identification method |
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| CN204595258U (en) * | 2015-04-20 | 2015-08-26 | 连展科技电子（昆山）有限公司 | Can the Optical fiber plug connector of quick release |
| US20170299820A1 (en) * | 2015-05-07 | 2017-10-19 | Alliance Fiber Optic Products, Inc. | Push-pull type fiber optic connector assembly |
| CN206696473U (en) * | 2017-04-17 | 2017-12-01 | 深圳市飞博康光通讯技术有限公司 | A kind of LC duplexs connector |
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| CN202649535U (en) * | 2012-07-06 | 2013-01-02 | 河北华美光电子有限公司 | QSFP optical module housing structure |
| CN103852833A (en) * | 2012-11-30 | 2014-06-11 | 台达电子工业股份有限公司 | Communication module |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111999819A (en) * | 2020-08-21 | 2020-11-27 | 华为技术有限公司 | Optical fiber connector assembly, label system, label module and identification method |
| CN111999819B (en) * | 2020-08-21 | 2024-06-25 | 华为技术有限公司 | Label system and identification method |
| EP4099068A1 (en) * | 2021-06-02 | 2022-12-07 | Huizhou Fibercan Industrial Co., LTD | High-density connector |
| CN114185136A (en) * | 2021-12-06 | 2022-03-15 | 深圳太辰光通信股份有限公司 | Optical fiber connector of alternating switch locking |
| CN114185136B (en) * | 2021-12-06 | 2023-03-14 | 深圳太辰光通信股份有限公司 | Optical fiber connector with alternating switch locking |
| CN114447704A (en) * | 2022-01-19 | 2022-05-06 | 中航光电科技股份有限公司 | Push-pull plug with locking device |
| CN114447670A (en) * | 2022-01-19 | 2022-05-06 | 中航光电科技股份有限公司 | Multi-channel push-pull plug |
| CN114447670B (en) * | 2022-01-19 | 2024-04-16 | 中航光电科技股份有限公司 | Multi-channel push-pull plug |
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Application publication date: 20200107 |
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