CN213843596U

CN213843596U - Connector, adapter connector and connector assembly

Info

Publication number: CN213843596U
Application number: CN202022793908.6U
Authority: CN
Inventors: 陈明; 刘乃常; 王旭涛; 韩云钊; 杨帅杰; 赵晓鸣; 李卫可; 武学顺
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-07-30
Anticipated expiration: 2030-11-27

Abstract

The utility model provides a connector assembly, including grafting complex connector and adapter connector, the connector includes the connector housing, and the adapter connector includes the adapter connector casing, is equipped with the unit that floats that sets up along radial activity on the connector housing, and the unit that floats falls into in the locking recess of seting up on the adapter connector casing outer global after connector and adapter connector insert and close and cooperates with locking recess axial stop, and the unit that floats this moment is face contact with the locking recess in the axial. The utility model can realize rapid push-pull locking, and simultaneously ensures that the floating unit and the locking groove are in surface-to-surface contact during locking, thereby improving the locking strength and meeting the requirement of high mechanical performance of the connector; on the other hand, the locking structure can be machined in a machining mode, and meanwhile, a low-cost process can be used, so that the cost is remarkably reduced.

Description

Connector, adapter connector and connector assembly

Technical Field

The utility model belongs to the technical field of the connector, in particular to connector, adapter connector and connector assembly.

Background

The optical fiber communication technology is developing towards the direction of high transmission rate and high bandwidth, the optical fiber connection technology develops along with the development of the optical fiber communication technology, and the optical fiber connection technology is developed into a series of optical fiber connector products with various varieties, complete types and various structures at present, and becomes one of the most widely applied basic optical passive devices in the optical fiber application field. The low cost, easy operation, high reliability, miniaturization are the development trend of the coming optical fiber connector, and the locking structure that current connector adopted generally has three kinds, as shown in fig. 1 to 3: screw thread formula, bayonet type, plug-type, push-and-pull type locking structure as using the most convenient structure at present, basically there are two kinds: snap-in type and steel bead type.

When the connector adopting two locking modes, namely the thread 101 and the bayonet (the clamp 102 shown in fig. 2 is matched with the corresponding clamp hole), is used, a large installation space is needed, so that the installation space of the connector needs to be reserved on the connector when equipment is designed, large space and cost waste are caused, meanwhile, the two locking modes can not realize quick locking and separation of the connector, and the connector needs to consume a long installation time of constructors when in use; there are generally two types of existing push-pull style connectors, the first: locking through buckle structure, this kind of structure requires that the locking buckle needs certain deformability, consequently has limited locking structure's size and the mechanical properties of connector to a certain extent, to the application scene to mechanical properties, especially tensile force performance requirement is higher, can not satisfy the requirement, the second: locking is carried out through the steel ball 103, the locking structure of the steel ball can realize quick locking, but because the contact of the locking position is point contact, the locking mechanical strength is lower, in order to improve the strength, the material of the steel ball locking matching part needs high-strength material, therefore, metal is generally selected in the prior art, and the material wall thickness of the locking position is increased, but the product cost can be greatly increased no matter the high-strength material is selected or the wall thickness is increased, and the product size is increased while the wall thickness is increased, so that the installation size of the connector is increased, the reserved position on the equipment is also increased, and the product weight is increased; on the other hand, the steel ball holes are complex to machine, only machining can be adopted, die technology cannot be used for machining, and cost is high, so that the steel ball type push-pull locking structure limits the development trend of miniaturization and low cost of products to a certain extent.

SUMMERY OF THE UTILITY MODEL

For solving the problem of the prior art, the utility model aims to provide a connector and connector assembly thereof can satisfy high mechanical properties's requirement under the short condition of end length is closed in the interpolation.

The purpose of the utility model and the technical problem thereof are realized by adopting the following technical scheme. The foundation the utility model provides a connector, including the connector housing, be equipped with the unit that floats that sets up along radial activity on the connector housing, the unit that floats falls into the locking recess of seting up on the adapter connector housing peripheral face after connector and adapter connector are inserted and are closed in and with the cooperation of locking recess axial stop, the unit that floats this moment is face contact with the locking recess in the axial.

Further, the floating unit is a locking column separately arranged from the connector housing, or the floating unit is a locking sheet integrally formed with the connector housing.

Furthermore, the opposite plugging end of the connector shell is a polygonal interface, and the plugging end of the adaptive connector shell is an adaptive polygonal interface matched with the opposite plugging end so as to realize relative rotation stopping of the connector and the adaptive connector after plugging; alternatively, the connector housing or the mating connector housing is keyed to achieve relative rotation stop.

The utility model also provides an adapter connector, including the adapter connector casing, set up the unit that floats that supplies radial activity to set up on the connector casing on the outer peripheral face of adapter connector casing and insert with the adapter connector and close after target in place and stop complex locking recess with the unit that floats in the axial, the locking recess is face contact with the unit that floats in the axial this moment.

Furthermore, the outer side of the adaptive connector shell is sleeved with a locking sleeve which is movably arranged along the axial direction, and the locking sleeve radially limits the floating unit to be separated from the locking groove after the floating unit falls into the locking groove, so that the axial locking state is maintained.

Furthermore, a reset elastic piece is arranged between the locking sleeve and the adaptive connector shell.

The utility model also provides a connector assembly, including grafting complex connector and adapter connector, the connector includes the connector housing, and adapter connector includes the adapter connector casing, is equipped with the unit that floats that sets up along radial activity on the connector housing, and the unit that floats falls into in the locking recess of seting up on adapter connector casing global after connector and adapter connector insert and cooperate and with locking recess axial stop cooperation, and the unit that floats this moment is face contact with the locking recess in the axial.

By the technical scheme, the utility model adopts the novel locking structure, not only can realize quick push-pull locking, but also improves the point contact of the existing steel ball type push-pull locking structure into the surface contact of the floating unit and the locking groove, thereby obviously increasing the contact area, improving the locking strength and meeting the requirement of high mechanical performance of the connector; on the other hand, the novel locking structure can be machined in a machining mode, meanwhile, a low-cost process can be used, the mold is machined in a molding mode, and the cost can be remarkably reduced.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic diagram of a conventional connector employing a screw-type lock.

Fig. 2 is a schematic diagram of a conventional connector using bayonet locking.

Fig. 3 is a schematic structural diagram of a conventional connector adopting a steel ball type locking.

Fig. 4 is a schematic structural diagram of a connector assembly according to an embodiment of the present invention.

Fig. 5 is a schematic diagram of a connector according to an embodiment of the present invention.

Fig. 6 is a schematic diagram of an adapter connector according to a first embodiment of the present invention.

Fig. 7 is a schematic diagram of a connector assembly in a locked state according to a first embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a connector assembly according to a second embodiment of the present invention.

Fig. 9 is a schematic diagram of the connector assembly in a locked state according to the second embodiment of the present invention.

Fig. 10 is a schematic view of a side-by-side steel ball type push-pull connector according to an embodiment of the present invention.

Description of reference numerals: 1-connector, 11-connector shell, 2-adapter connector, 21-adapter connector shell, 211-locking groove, 22-locking sleeve, 23-reset spring, 3-locking column, 4-locking sheet and 41-locking projection.

Detailed Description

The following detailed description is to be read in connection with the drawings and the preferred embodiments.

An embodiment of a connector assembly is shown in fig. 4 to 7, and comprises a connector 1 and a mating connector 2, wherein the connector 1 can be a plug or a socket, and the mating connector 2 is a plug or a socket matched with the connector.

The connector comprises a connector shell 11 which can be assembled on corresponding equipment through a rear end fixing part 12, the adaptive connector comprises an adaptive connector shell 21 which is matched with the connector shell in an inserting mode, a floating unit which is movably arranged along the radial direction is arranged on the connector shell, and the floating unit falls into a locking groove 211 which is formed in the outer peripheral surface of the adaptive connector shell after the connector and the adaptive connector are inserted in place and is in axial stop fit with the locking groove, so that axial locking after two ends of a headstock are inserted is achieved, and the floating unit is in surface contact with the locking groove in the axial direction. In order to keep the axial locking state, a locking sleeve 22 which is movably arranged along the axial direction is sleeved on the outer side of the adaptive connector shell, and the locking sleeve radially limits the floating unit to be separated from the locking groove 211 after the floating unit falls into the locking groove; the locking sleeve 22 and the adapter connector shell 21 together form a shell component; further, a return elastic member, such as a return spring 23, is fitted between the lock sleeve and the adapter housing.

Preferably, the floating unit is a locking post 3 separately provided from the connector housing, and the locking post 3 is fitted in a mounting hole provided in the connector housing and movably protruded on the inner and outer wall surfaces of the connector housing in a radial direction. When the adaptive connector is matched and inserted, the adaptive connector shell is pushed to enable the front insertion end to be inserted into the connector shell in a guiding mode, the locking column is jacked up by the adaptive connector shell and protrudes out of the outer wall of the connector shell, the locking column drives the locking sleeve to axially retreat along with the pushing of the shell component, the reset spring compresses, when the floating unit is located at the position of the locking groove, the floating unit falls into the locking groove 211, the locking column 3 does not block the locking sleeve 22 in the axial direction, the locking sleeve 22 axially resets under the action of the reset spring 23, the locking column 3 is compressed to achieve locking, and the locking column and the adaptive locking groove are in surface contact in the axial direction, so that the locking mechanical performance of the connector assembly is remarkably improved.

In order to ensure the tightness of the connector assembly, a sealing unit 5, such as a sealing ring, is further provided, and the sealing unit may be disposed on the inner wall of the connector so as to cooperate with the peripheral sealing surface of the adapter connector housing to achieve a sealing effect, or the sealing unit may be disposed on the outer wall of the adapter connector housing so as to cooperate with the inner wall of the connector in a sealing manner. By means of the sealing unit, sealing can be achieved while the connector assembly is plugged and locked, and therefore the sealing unit is suitable for a waterproof environment.

In this embodiment, the connector and the adapter connector realize relative radial rotation prevention through the rotation prevention structure, and the relative radial rotation prevention can be realized through at least the following two ways: (1) the opposite plugging end of the connector shell is a polygonal interface, such as a square shell shown in the figure, and the plugging end of the adaptive connector shell is an adaptive polygonal interface matched with the opposite plugging end so as to realize relative rotation stopping of the connector and the adaptive connector after plugging; (2) the connector shell or the adaptive connector shell realizes relative rotation prevention through key groove matching, one of the connector shell or the adaptive connector shell is provided with a rotation prevention key, and the other one of the connector shell or the adaptive connector shell is provided with an axially extending adaptive key groove. When the anti-rotation structure is adopted, the locking process is in a straight-inserting type of the head seat, the sealing ring can be prevented from being deformed due to radial torsion, the protection effect can be guaranteed, and therefore the anti-rotation structure is more suitable for occasions needing water proofing.

Example two:

as shown in fig. 8 and fig. 9, the present embodiment is different from the first embodiment in that the floating unit can also be a locking plate 4 integrally formed with the connector housing, the locking plate 4 is of an elastic cantilever structure, the front end of the locking plate is a movable end, and the locking plate has a locking protrusion 41 adapted to the shape of the locking groove; in the butt-inserting process of the head seat, the adaptive connector shell jacks up the locking sheet, the front end of the locking sheet tilts to push the locking sleeve to retreat, the reset spring compresses, then after the locking protrusion of the locking sheet falls into the locking groove, the locking sleeve resets under the action of the reset spring and compresses the locking sheet to prevent the movable end of the locking sheet from being lifted, and meanwhile, the two ends of the head seat are sealed by the aid of the sealing unit. Because the locking sheet and the locking groove are in surface contact, the mechanical performance of the connector is improved, and meanwhile, the connector can be processed in a low-cost process die forming mode, so that the production efficiency is improved.

It is worth to be noted that, although both the locking column 3 and the locking piece 4 can achieve the surface contact axial locking function with the locking groove, the locking column has the following advantages compared with the locking piece: (1) in the locking process of the locking column structure of the connector, the locking column is separated from the connector shell and can float freely; the movable end of the locking sheet has downward reset elasticity, and the head seat is axially rubbed with the adapter connector shell at the beginning of opposite insertion, so that the locking column can effectively improve the locking hand feeling, and the insertion force is smaller than that of the locking sheet in the insertion process; (2) due to the technical problem, the locking column structure can be suitable for metal and plastic structures, and the locking sheet type structure can only be taken out in a mode of a mold, and the material is generally plastic; (3) the locking sheet needs a longer cantilever beam, so that the required shell has larger size, and the connector has larger integral size under the condition of having the same locking mechanical property with the locking column structure; (4) the locking sheet and the connector shell are formed by an integrated die, the strength of plastic is lower than that of a metal material or other ceramic materials to a certain extent, and for the locking column structure, the locking column is an independent part, and the material capable of changing the locking column is metal or other materials with higher strength, so that the mechanical performance of a product can be better improved by the locking column structure.

In addition, the locking mode of the steel ball type can also realize the purpose of increasing the mechanical performance by the way of the side by side steel balls, as shown in fig. 10, but the locking contact of a single steel ball 6 of the locking structure of the side by side steel balls is still point contact, when in locking, the side by side steel balls are not all in the locking state, and part of the steel balls are in the virtual connection state, thereby causing the risk of reducing the mechanical strength of the connector, meanwhile, the locking structure of the side by side steel balls needs to control the space between the steel balls in order to ensure the strength, thereby causing the overlarge size of the connector, on the other hand, the steel ball hole processing of the dispersed steel ball locking structure is more complex, only can be processed by adopting a machining mode, cannot be processed by using a die process, and has higher cost, the locking structure of the locking column or the locking sheet provided by the utility model is easy to stably maintain a larger contact area, easy processing, locking intensity is high, can be better the realization low cost, the function of high strength.

The connector assembly in each of the above embodiments may be an optical connector, an electrical connector, an optical-electrical hybrid connector, or other type of connector, so as to adapt to different application scenarios, and the present invention is not limited thereto.

The utility model discloses the embodiment of well connector in each embodiment of above-mentioned connector subassembly promptly the connector, the utility model discloses the embodiment of well adapter connector in each embodiment of above-mentioned connector subassembly promptly adapter connector, its concrete structure is no longer repeated.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art can easily modify, change or modify the above embodiments according to the technical spirit of the present invention without departing from the scope of the present invention.

Claims

1. Connector, including the connector housing, its characterized in that: the connector shell is provided with a floating unit which is movably arranged along the radial direction, the floating unit falls into a locking groove arranged on the outer circumferential surface of the adaptive connector shell after the connector and the adaptive connector are plugged and matched with the locking groove in an axial stop manner, and the floating unit is in surface contact with the locking groove in the axial direction.

2. The connector of claim 1, wherein: the floating unit is a locking column which is arranged separately from the connector shell, or the floating unit is a locking sheet which is integrally formed with the connector shell.

3. The connector of claim 1, wherein: the opposite plugging end of the connector shell is a polygonal interface, and the plugging end of the adaptive connector shell is an adaptive polygonal interface matched with the opposite plugging end so as to realize relative rotation stopping of the connector and the adaptive connector after plugging;

alternatively, the connector housing or the mating connector housing is keyed to achieve relative rotation stop.

4. Adapter connector, including adapter connector casing, its characterized in that: the outer peripheral surface of the adaptive connector shell is provided with a locking groove which is used for the floating unit which is radially and movably arranged on the connector shell to fall into and axially stop matching with the floating unit after the connector and the adaptive connector are inserted in place, and the locking groove is in surface contact with the floating unit in the axial direction.

5. The adapter connector of claim 4, wherein: the outer side of the adaptive connector shell is sleeved with a locking sleeve which is movably arranged along the axial direction, and the locking sleeve radially limits the floating unit to be separated from the locking groove after the floating unit falls into the locking groove so as to maintain the axial locking state.

6. The adapter connector of claim 5, wherein: and a reset elastic part is arranged between the locking sleeve and the adaptive connector shell.

7. Connector assembly, including grafting complex connector and adaptation connector, the connector includes the connector housing, and the adaptation connector includes adaptation connector housing, its characterized in that:

the connector shell is provided with a floating unit which is movably arranged along the radial direction, the floating unit falls into a locking groove arranged on the outer circumferential surface of the adaptive connector shell after the connector and the adaptive connector are plugged and matched with the locking groove in an axial stop manner, and the floating unit is in surface contact with the locking groove in the axial direction.

8. The connector assembly of claim 7, wherein: the floating unit is a locking column which is arranged separately from the connector shell, or the floating unit is a locking sheet which is integrally formed with the connector shell.

9. The connector assembly of claim 7, wherein: the opposite plugging end of the connector shell is a polygonal interface, and the plugging end of the adaptive connector shell is an adaptive polygonal interface matched with the opposite plugging end so as to realize relative rotation stopping of the connector and the adaptive connector after plugging;

10. The connector assembly of any one of claims 7 to 9, wherein: the outer side of the adaptive connector shell is sleeved with a locking sleeve which is movably arranged along the axial direction, and the locking sleeve radially limits the floating unit to be separated from the locking groove after the floating unit falls into the locking groove so as to maintain the axial locking state.