CN220138813U

CN220138813U - Connector and shell assembly thereof

Info

Publication number: CN220138813U
Application number: CN202321667074.1U
Authority: CN
Inventors: 薛金钢; 刘乃常; 王旭涛; 李卫可; 陈林凯
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2023-06-28
Filing date: 2023-06-28
Publication date: 2023-12-05
Anticipated expiration: 2033-06-28

Abstract

The utility model belongs to the technical field of communication connectors, and particularly provides a connector and a shell assembly thereof. The outer shell assembly comprises an inner shell and an outer shell, wherein an extrusion part is arranged between the outer shell and the inner shell, the extrusion part can move forwards along with the outer shell and is in extrusion fit with the inner shell, a matching surface of the inner shell and the extrusion part, which is matched with each other, comprises a redirection surface, the front end of the extrusion part is provided with an elastic deformation section capable of inward compression deformation, and the redirection surface is arranged in an extending way along the direction away from the connector cable from front to back; or the inner shell is provided with a fixing structure which is used for being matched with the extrusion piece in an extrusion mode, and the fixing structure is provided with an elastic deformation section which can be compressed and deformed inwards; the elastic deformation section is provided with a pressing part for pressing the cable at the plug of the connector. The utility model advances the position of the elastic deformation section for attaching the cable to the cable, so that the compression point of the elastic deformation section is close to the connector plug, the distance from the plug to the stress point of the cable is reduced, and the holding effect of the elastic piece on the cable is improved.

Description

Connector and shell assembly thereof

Technical Field

The utility model belongs to the technical field of communication connectors, and particularly relates to a connector and a shell assembly thereof.

Background

Connectors for outdoor use generally include a core assembly for transmitting signals and a shell assembly for protecting and sealing the core assembly, wherein the core assembly includes a plug and a cable preconnected to a tail of the plug.

In order to ensure sufficient tensile resistance of the connector and to avoid axial play of the cable relative to the housing assembly, applicant's patent (CN 213878603U) provides a connector which comprises a forwardly movable nut (housing) having an extrusion jaw and an elastic rubber ring disposed therein, the extrusion jaw having a sloping surface adapted to the shrink surface of the inner wall of the cavity of the nut, the nut being moved forwardly, the extrusion force being redirected by the sloping surface of the extrusion jaw, the elastic rubber ring being compressed inwardly, the elastic rubber ring being deformed under pressure to hold the cable tightly, providing tensile resistance to the cable.

However, the nut and the pressing claw of the housing assembly are contacted with the cap top (rear end) of the nut, the contact position of the rubber ring pressing deformation point and the cable is far away from the connector plug, the cable at the distance is easy to bend and deform after being pressed, and the risk of axial movement exists, so that the connector is also required to be provided with a supporting sleeve which plays a role of stopping.

Disclosure of Invention

The utility model aims to provide a connector housing assembly, which solves the technical problem that an elastic piece in the connector housing assembly has poor anti-shifting effect on cables in the prior art. The present utility model also provides a connector to solve the same technical problems as described above.

In order to achieve the above object, the technical scheme of the connector housing assembly provided by the utility model is as follows:

the connector outer shell assembly comprises an inner shell and an outer shell, wherein an extrusion piece is arranged between the outer shell and the inner shell, the extrusion piece can move forwards along with the outer shell and is in extrusion fit with the inner shell, a matching surface of the inner shell and the extrusion piece, which are matched with each other, comprises a redirection surface, the front end of the extrusion piece is provided with an elastic deformation section capable of inwards compressing and deforming, and the redirection surface is arranged in an extending way along the direction of being far away from a connector cable from front to back; or the inner shell is provided with a fixing structure for being matched with the extrusion part in an extrusion mode, and the fixing structure is provided with an elastic deformation section capable of being compressed and deformed inwards; the elastic deformation section is provided with a pressing part for pressing the cable at the plug of the connector.

The beneficial effects are that: the present utility model improves upon the housing assemblies of existing connectors. When the connector is plugged with the socket, the outer shell drives the extrusion part to move forwards, the extrusion part is matched with the inner shell in an extrusion mode, the elastic deformation section compresses the cable inwards to be pasted, tensile resistance is provided for the cable, and axial movement of the cable is prevented. Compared with the prior art, the utility model presupposes the position of the elastic deformation section for attaching the cable, so that the compression point of the elastic deformation section is close to the connector plug as much as possible, namely, the distance from the plug to the stress point of the cable is reduced, and the holding effect of the elastic piece on the cable is improved.

As a further improvement, the inner wall surface cross section of the elastic deformation section has an arc-shaped section, and the portion corresponding to the arc-shaped section forms the pressing surface of the pressing portion.

The beneficial effects are that: the extrusion part can have larger contact area with the cable, namely, a cladding effect is formed on the cable, and the holding effect of the extrusion part on the cable is further improved.

As a further improvement, the extrusion is formed of an elastic ring.

The beneficial effects are that: at this time, the whole coating of the cable is formed, and the holding effect is further improved. Meanwhile, the cost of the elastic ring is lower.

As a further improvement, the inner housing is provided with a stopper portion for being in stopper engagement with the front end of the elastically deforming section.

The beneficial effects are that: the stop part firstly limits the excessive forward movement of the elastic ring, and ensures the reliability of the elastic ring. In addition, the stop part is matched with the redirection surface and has a certain function of keeping the cable and the elastic ring in the middle.

As a further improvement, a spacer is provided between the rear end portion of the pressing member and the rear end portion of the outer case.

The beneficial effects are that: the gasket enables a larger contact area between the outer shell and the end part of the extrusion piece, improves the stress of the extrusion piece, and enables the extrusion piece to be more stable in the forward moving process.

As a further improvement, the outer housing is provided with a fixed connection structure for fixed engagement with the socket, and the inner housing is provided with an abutment end for abutment against the socket end.

As a further improvement, the inner housing is formed by an inner sleeve.

The beneficial effects are that: the inner sleeve has cladding effect to the extrusion piece, has guaranteed that the extrusion piece can inwards compress from all directions, has guaranteed the compression effect of extrusion piece. In addition, the contact points of the inner sleeve and the outer shell body are more, so that the moving stability of the outer shell body is improved.

In order to achieve the above purpose, the technical scheme of the connector provided by the utility model is as follows:

the connector comprises an outer shell component and an inner core component, wherein the inner core component comprises a cable, the outer shell component comprises an inner shell and an outer shell, an extrusion piece is arranged between the outer shell and the inner shell and can move forwards along with the outer shell and is in extrusion fit with the inner shell, a matching surface where the inner shell and the extrusion piece are matched with each other comprises a redirecting surface, the front end of the extrusion piece is provided with an elastic deformation section capable of inwards compression deformation, and the redirecting surface is arranged in a direction extending from front to back and far away from the cable of the connector; or the inner shell is provided with a fixing structure for being matched with the extrusion part in an extrusion mode, and the fixing structure is provided with an elastic deformation section capable of being compressed and deformed inwards; the elastic deformation section is provided with a pressing part for pressing the cable at the plug of the connector.

As a further improvement, the extrusion is formed of an elastic ring.

As a further improvement, the inner housing is formed by an inner sleeve.

As a further improvement, a protective sleeve is provided on the outer periphery of the cable, the protective sleeve having a mating surface for mating with the press portion.

The beneficial effects are that: the protective sleeve can firstly play a role in protecting the internal core cable, and can further increase the coupling contact area of the internal core cable and the elastic ring, which is equivalent to the increased tensile area.

As a further improvement, the mating surface is provided with a raised structure or a recessed structure.

The beneficial effects are that: the elastic deformation section deforms along with the protruding structure and the groove structure to form a mutually embedded structure, and the holding effect of the elastic deformation section on the cable is further improved.

Drawings

Fig. 1 is a schematic view of embodiment 1 of the connector of the present utility model when the connector is mated with a receptacle;

FIG. 2 is a schematic view of a connector according to an embodiment 1 of the present utility model;

FIG. 3 is a schematic view showing the structure of the housing assembly in the embodiment 1 of the connector according to the present utility model;

FIG. 4 is a partial cross-sectional view of the inner sleeve of FIG. 3;

FIG. 5 is a partial cross-sectional view of the elastomeric ring of FIG. 3;

fig. 6 is a schematic structural view of the core assembly of embodiment 1 of the connector according to the present utility model;

fig. 7 is a schematic view of embodiment 2 of the connector of the present utility model when the connector is mated with a receptacle;

FIG. 8 is a schematic view of a connector according to embodiment 2 of the present utility model;

fig. 9 is a schematic structural view of a core assembly in embodiment 2 of the connector according to the present utility model;

fig. 10 is a schematic view showing four different structures of the protective sheath in embodiment 2 of the connector according to the present utility model.

Reference numerals illustrate:

1. a housing assembly; 2. an inner core assembly; 3. a socket; 4. a module; 11. an outer housing; 12. an inner sleeve; 121. a redirection surface; 122. a stopper; 13. an elastic ring; 131. pasting and pressing a surface; 14. a gasket; 21. a plug; 22. a fixed sleeve; 23. a protective sleeve; 231. a groove; 232. a notch; 24. a cable; 241. a step.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the utility model, i.e., the embodiments described are merely some, but not all, of the embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.

It is noted that relational terms such as "first" and "second", and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" or the like is not excluded from a process, method, or the like that includes the element.

In the description of the present utility model, the terms "mounted," "connected," "coupled," and "connected," as may be used broadly, and may be connected, for example, fixedly, detachably, or integrally, unless otherwise specifically defined and limited; can be mechanically or electrically connected; either directly, indirectly through intermediaries, or in communication with the interior of the two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art in specific cases.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the term "provided" may be interpreted broadly, and for example, an object "provided" may be a part of a body, may be separately disposed from the body, and may be connected to the body, where the connection may be a detachable connection or an undetachable connection. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art in specific cases.

The present utility model is described in further detail below with reference to examples.

Specific embodiment 1 of the connector provided by the utility model:

the connector provided in this embodiment, as shown in fig. 1 and 2, includes a shell component 1 and an inner core component 2, where the shell component 1 wraps the outer part of the inner core component 2 and is fixedly matched with the socket 3, and a plug 21 of the inner core component 2 is used to connect with the module 4 to realize signal communication, and the shell component 1 plays a role in fixing and protecting the inner core component 2.

As shown in fig. 3-6, the outer housing assembly 1 comprises an outer housing 11 and an inner sleeve 12, the outer housing 11 being movable forward relative to the inner sleeve 12 and having a connection structure for locking connection with the socket 3 in a fixed position, in particular a catch, ratchet or the like, the inner sleeve 12 being adapted to abut an end of the socket 3. An extrusion piece is arranged between the outer shell 11 and the inner sleeve 12, and the inner sleeve 12 is matched with the extrusion piece in an extrusion mode.

Specifically, the extrusion in this embodiment is an elastic ring 13, and the elastic ring 13 is used to be sleeved on the outer side of the cable 24, and has a mounting portion for being sleeved on the cable 24. The end of the connector, which is in plug-in fit with the module 4, is defined as the front, and the elastic ring 13 is in mating contact with the outer housing 11 and can move forward with the outer housing 11. The inner sleeve 12 is provided with an extrusion cavity for being in extrusion fit with the elastic ring 13, the inner wall of the cavity forms a redirection surface 121, after the elastic ring 13 moves forwards to enter the cavity of the inner sleeve 12, the redirection surface 121 is in extrusion fit with an elastic deformation section of the front end of the elastic ring 13, which enters the extrusion cavity, the front end of the elastic ring 13 is compressed inwards, the whole elastic deformation section is an arc-shaped surface, the arc-shaped surface forms a pressing surface 131 to be in pressing contact with the cable 24, and tension resistance is provided for the cable 24, so that the cable 24 is prevented from being stressed to move backwards. In this embodiment, the angle between the longitudinal section of the redirecting surface 121 and the rearward opening of the cable is an acute angle, that is, the redirecting surface 121 is far away from the cable 24 from the front to the rear, the pressed and deformed position of the elastic ring 13 is closer to the plug 21 of the core assembly 2, the distance from the contact position of the elastic ring 13 with the cable 24 to the plug 21 is reduced, and the contact position extends to the position of the fixing sleeve 22 at the rear side of the plug 21.

In addition, the inner wall of the elastic connecting section formed at the front end of the elastic ring 13 is an arc surface, so that the elastic ring and the cable 24 are ensured to have a larger contact area, and a better holding effect is achieved. In other embodiments, the elastic connection section has only a partial arc section, i.e. the section of the section has a partial arc section, and not all the sections are arc surfaces, and the arc section is used for being in press fit with the cable, so that the holding effect of the elastic deformation section on the cable can be ensured.

In this embodiment, in order to increase the contact area between the elastic ring 13 and the redirecting surface 121, the front end of the elastic ring 13 also has a redirecting surface, which is beneficial to the compression deformation of the elastic ring 13. In fact, in other embodiments, it is also possible to retain only the redirecting surface of the inner sleeve 12, so that the contact position of the elastic ring 13 with the cable 24 can be advanced as well, and even only the redirecting surface of the elastic ring 13 can be retained, so that the effect of moving the contact position of the elastic ring 13 with the cable 24 forward can be achieved. Of course, the redirection surface is not just the inclined surface shown in the figure, but may even be an arc surface.

In this embodiment, as shown in fig. 4, the inner sleeve 12 further has a stopper 122 for stopper-engagement with the front end of the elastic ring 13. The stop portion 122 can prevent the elastic ring 13 from moving forward excessively, and ensure the reliability of the elastic ring 13. In addition, the stop 122 is in press fit with the redirecting surface 121 of the inner sleeve 12, and also plays a role in keeping the positions of the elastic ring 13 and the cable 24 centered.

In this embodiment, a spacer 14 is further disposed between the outer housing 11 and the end of the elastic ring 13, and the spacer 14 ensures that the outer housing 11 and the elastic ring 13 can have stable surface load contact, so that the elastic ring 13 is stressed more uniformly.

The embodiment 2 of the connector provided by the utility model is mainly different from the embodiment 1 in that: in this embodiment, as shown in fig. 7-9, the cable 24 is further sleeved with a protective sleeve 23, the protective sleeve 23 is used for being in contact with and matched with the elastic ring 13, the outer peripheral surface of the protective sleeve is a matching surface, a step 241 formed between the end of the fixed sleeve 22 and the cable 24 is in stop fit with the protective sleeve 23, the diameter of the cable 24 is correspondingly increased by the protective sleeve 23, the contact pressure of the elastic ring 13 and the contact area of the elastic ring 13 and the cable 24 are increased, and the holding effect of the elastic ring 13 is enhanced. The protective sheath 23 also has the function of protecting the cable 24.

Further, in the present embodiment, as shown in fig. 10, the shape of the protective sleeve 23 may be a complete ring shape, or may be a "C" type protective sleeve 23 with a notch 232. In addition, the matching surface on the periphery of the protective sleeve 23 can be provided with a groove 231 or a protruding structure, the elastic ring 13 deforms along with the groove structure or the protruding structure, an effect of mutual embedding with the groove 231 or the protruding is achieved, and the retaining effect of the elastic ring 13 on the protective sleeve 23 is improved.

The embodiment 3 of the connector provided by the utility model is mainly different from the embodiment 1 in that: in embodiment 1, the pressing member is an elastic ring 13, and the front end thereof is pressed to form an elastically deformed section. In this embodiment, the elastic deformation section is formed by a fixing structure disposed on the inner sleeve, for example, the fixing structure may be a multi-piece spring claw structure, the spring claw forms the elastic deformation section, a certain gap is disposed between the spring claw and the inner wall of the inner sleeve, and the extrusion member is inserted into the gap between the spring claw and the inner wall to compress the spring claw inwards and attach to the cable at the plug. The mating surface between the spring fingers and the extrusion should also have a redirection surface, which may extend in a direction from front to back away from the cable or in a direction from front to back toward the cable.

The embodiment 4 of the connector provided by the utility model is mainly different from the embodiment 1 in that: in embodiment 1, the inner sleeve of the outer housing assembly has a stop for a stop fit with the resilient ring 13. In this embodiment, even if the inner sleeve does not block the elastic ring, the elastic ring holds the cable tightly and still functions to provide tensile force for the inner core assembly.

The embodiment 5 of the connector provided by the utility model is mainly different from embodiment 1 in that: in embodiment 1, a gasket is provided between the outer shell of the outer shell assembly and the elastic ring. In this embodiment, the outer casing may also directly drive the elastic ring to move forward without providing a spacer.

The embodiment 6 of the connector provided by the utility model is mainly different from embodiment 1 in that: in embodiment 1, the inner sleeve of the outer housing assembly forms the inner housing and the elastomeric ring is press fit with the inner sleeve to form an extrusion for applying the cable to provide retention for the cable. In this embodiment, the extrusion member may not be an elastic ring, it may be a multi-piece spring claw structure, the spring claws at the front end form an elastic connection section, the inner housing may also be a multi-piece spring claw structure, at least one of the extrusion member and the inner housing is provided with an inclined surface which is far away from the cable from front to back, and the two are in press fit, and the spring claws of the extrusion member compress the cable to provide tension resistance for the cable. Moreover, the extrusion and inner housing may not be a full ring structure, such as a "C" structure. In addition, the elastic claw can be an elastic claw with an arc-shaped surface or a flat-plate elastic claw, and can be used for pasting a cable to provide tensile force for the cable, but the arc-shaped surface has a better pasting and pressing effect due to a larger contact area with the cable.

Embodiment 7 of the connector according to the present utility model differs from embodiment 1 mainly in that: in embodiment 1, the outer housing of the outer housing assembly has a connection structure for fixed connection with a socket that holds the outer housing 1 in a fixed position. In this embodiment, the outer housing may be a nut, such as the nut in patent CN 213878603U.

Specific embodiments of the connector housing assembly of the present utility model:

an embodiment of the housing assembly, i.e. the housing assembly described in any of embodiments 1 to 7 of the connector described above, is not described in detail here.

It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present utility model, and the present utility model is not limited to the above-mentioned embodiments, but may be modified without inventive effort or equivalent substitution of some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The connector outer shell assembly comprises an inner shell and an outer shell, wherein an extrusion piece is arranged between the outer shell and the inner shell and can move forwards along with the outer shell and is in extrusion fit with the inner shell, and the connector outer shell assembly is characterized in that a fit surface where the inner shell and the extrusion piece are mutually matched comprises a redirection surface, the front end of the extrusion piece is provided with an elastic deformation section capable of inwards compression deformation, and the redirection surface is arranged in an extending way from front to back far away from a connector cable; or the inner shell is provided with a fixing structure for being matched with the extrusion part in an extrusion mode, and the fixing structure is provided with an elastic deformation section capable of being compressed and deformed inwards; the elastic deformation section is provided with a pressing part for pressing the cable at the plug of the connector.

2. The connector housing assembly according to claim 1, wherein the inner wall surface cross section of the elastically deforming section has an arcuate section, and a portion corresponding to the arcuate section forms a pressing surface of the pressing portion.

3. The connector housing assembly of claim 2, wherein the extrusion is formed of an elastomeric ring.

4. A connector housing assembly according to claim 3, wherein the inner housing is provided with a stop for a stop engagement with the front end of the resiliently deformable section.

5. The connector housing assembly of any one of claims 1-4, wherein a spacer is provided between the rear end of the extrusion and the rear end of the outer housing.

6. A connector housing assembly according to any one of claims 1-4, wherein the outer housing is provided with a fixed connection for a fixed engagement with a socket, and the inner housing is provided with an abutment end for abutment at the end of the socket.

7. The connector housing assembly of claim 6, wherein the inner housing is formed from an inner sleeve.

8. A connector comprising a housing assembly and a core assembly, the core assembly comprising a cable, wherein the housing assembly is the connector housing assembly of any one of claims 1-7.

9. The connector of claim 8, wherein a periphery of the cable is provided with a protective sleeve having a mating surface for mating with the press-fit portion.

10. The connector of claim 9, wherein the mating face is provided with a raised structure or a recessed structure.