CN219610828U - Cable waterproof connection tail cap structure of connector - Google Patents

Abstract

The utility model discloses a cable waterproof connection tail cap structure of a connector, which comprises a connector pipe sleeve and a tail cap detachably matched with the connector pipe sleeve. Through the end wall of the cap through the through hole, an annular cavity groove is formed between the connector sleeve and the end wall of the cap, and an annular sealing structure with limit setting is arranged in the annular cavity groove, and the inner wall of the annular sealing structure is provided with There are several seal ring protrusions. The utility model adopts the design of the built-in ring-shaped sealing structure, and its several sealing ring protrusions can be more reliably sealed and matched with the cables, and the waterproof performance is more remarkable, and at the same time, it meets the compatibility assembly requirements of cables with certain wire diameter differences. It satisfies the relative clamping and locking stability of the built-in ring-shaped sealing structure, and is not easy to deform during the assembly process. At the same time, there is a limit and sealing structure between the clamping end faces to ensure the assembly stability and reliable sealing of the connector. The assembly structure is simple and ingenious, and the assembly is convenient and efficient.

Description

Cable waterproof connection tail cap structure of a connector

technical field

The utility model relates to a cable waterproof connection tail cap structure of a connector, which belongs to the technical field of connector sealing assembly structures.

Background technique

Connectors are a component that our electronic engineers often come into contact with. Its function is very simple: to build a bridge of communication between the blocked or isolated circuits in the circuit, so that the current can flow and the circuit can realize the predetermined function. Connectors are an indispensable part of electronic equipment. If you follow the path of current flow, you will always find one or more connectors. The form and structure of connectors are ever-changing, and there are various forms of connectors depending on the application object, frequency, power, application environment, etc.

In general, the connector includes a mating male end and a female end, and both the male end and the female end include a connector housing, an electrical terminal provided in the connector housing, and a connecting terminal that passes through the connector housing. For cables that are connected and connected in phase, in traditional connectors, the assembly between the cables and the power terminals is cumbersome, and the sealing between the cables and the connector housing is difficult to ensure.

In response to this situation, the Chinese utility model patent with the authorized notification number CN217848515U discloses a straight head type energy storage connector and a connector assembly, which has a socket housing, an electrical terminal located in the socket housing, and a detachable assembly with the socket housing. An outer connecting sleeve is connected, and the outer connecting sleeve is equipped with an inner connecting sleeve which is sealed and fitted with the cable.

The inner sleeve has a ring platform for cables to pass through, and the diameter of the inner wall of the ring platform is relatively fixed, so it is only suitable for the threading fit and sealing of cables of a single specification. In the case that it cannot be assembled, in addition, after the electrical terminal is connected to the cable, the outer sleeve and the socket housing need to be assembled by screw fitting, while the traditional inner sleeve has a large axial dimension and a thin wall, which makes the assembly The operation is relatively difficult, and at the same time, it is easy to cause certain torsion damage to the inner sleeve. In severe cases, the product will be scrapped, and the yield rate of the product will be limited.

Contents of the invention

The purpose of this utility model is to solve the above-mentioned deficiencies in the prior art, aiming at the problems of poor compatibility of traditional inner sockets, poor strength of built-in assembly structure and poor loading stability, etc., a cable waterproof connection tail cap structure for connectors is proposed.

In order to achieve the above object, the technical solution adopted in the utility model is:

A cable waterproof connection tail cap structure for a connector, comprising a connector sleeve for carrying electrical terminals, a tail cap detachably matched with the connector sleeve, the electrical terminals facing the One end of the tail cap is provided with a conduction matching groove for matching with the guide core of the cable. through the cap end wall of the hole,

An annular cavity groove is formed between the connector sleeve and the end wall of the cap, and an annular sealing structure is provided in the annular cavity, and the inner wall of the annular sealing structure is provided with There are several seal ring protrusions.

Preferably, the annular sealing structure includes a sealing sleeve body for carrying the sealing ring protrusion, and a sealing limiter arranged on the sealing sleeve body for being limited in the groove of the ring cavity. bit ring section,

The two ends of the sealing pipe sleeve are respectively provided with an extended matching sleeve.

Preferably, a sealing and limiting fit structure is respectively provided between the sealing and limiting ring part, the end wall of the cap and the end wall of the connector sleeve.

Preferably, the sealing limiting fit structure includes an outer peripheral convex ring arranged on the end surface of the sealing limiting ring part, and a matching ring groove arranged between the outer peripheral convex ring and the sealing tube casing,

The end wall of the cap and the end wall of the connector sleeve are respectively provided with a matching ring groove matching with the outer peripheral convex ring and a matching ring rib matching with the matching ring groove.

Preferably, a deformation ring groove is provided between any adjacent sealing ring protrusions on the inner wall of the annular sealing structure.

Preferably, the sealing ring protrusion is a zigzag ring protrusion with a triangular cross section.

Preferably, the connector sleeve and the tail cap are screwed and rotated.

Preferably, the connector sleeve is provided with an outer wall threaded section, the tail cover sleeve is provided with an inner wall threaded section matching the outer wall threaded section, and the connector sleeve is provided with a The limit ring platform for limiting the position of the tail cover pipe sleeve.

Preferably, the end of the connector sleeve away from the tail cap is provided with an assembly fitting end, the inner lumen wall of the assembly fitting end is provided with an assembly fitting thread section, and the outer pipe wall is provided with a locking fitting ring ribs.

The beneficial effects of the utility model are mainly reflected in:

1. Through the design of the built-in ring-shaped sealing structure, several sealing ring protrusions can be more reliably sealed and matched with the cable, the waterproof performance is more significant, and at the same time, it meets the compatibility assembly requirements of cables with certain wire diameter differences.

2. Satisfy the relative clamping and locking stability of the built-in ring-shaped sealing structure, and the assembly process is not easy to produce deformation. At the same time, there is a limit and sealing structure between the clamping end faces to ensure the stability of the connector assembly and reliable sealing.

3. The assembly structure is simple and ingenious, the assembly is convenient and efficient, and the cost of the connector is also effectively controlled.

Description of drawings

Other characteristics, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

Fig. 1 is a schematic diagram of an exploded structure of a cable waterproof connection tail cap structure of a connector of the present invention.

Fig. 2 is a schematic diagram of a partial assembly structure of a cable waterproof connection tail cap structure of a connector of the present invention.

Fig. 3 is a partial cross-sectional structure schematic diagram of a finished cable waterproof connection tail cap structure of a connector of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described here are only used to explain the relevant utility model, rather than to limit the utility model. It should also be noted that, for the convenience of description, only the parts related to the utility model are shown in the drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

The utility model provides a connector cable waterproof connection tail cap structure, as shown in Figure 1 to Figure 3, including a connector sleeve 2 for carrying an electrical terminal 1, which is compatible with the connector sleeve 2 The detachable matching tail cover 3, the end of the electric terminal 1 facing the tail cover is provided with a conduction matching groove 10 for matching with the guide core 40 of the cable 4, and the tail cover 3 includes a connector sleeve for socketing The outer peripheral tail cap sleeve 5 is provided with a cap end wall 6 through which the cable passes through the through hole 60 .

The sealing structure of the traditional connector adopts the form of a thin-walled ring sleeve or a sealing filler to achieve a sealed assembly. The thin-walled ring sleeve is suitable for cables with relatively single diameter specifications. On the one hand, the cost of the sealing filling body is high and the process is complicated, and on the other hand, it is not conducive to maintenance and repair.

In this case, as shown in Figures 1 to 3, an annular cavity groove 7 is formed between the connector sleeve 2 and the end wall 6 of the cap, and an annular sealing structure 8 is provided in the annular cavity groove 7 to limit the position. Several sealing ring protrusions 80 are provided on the inner wall of the annular sealing structure.

Specifically, when assembling and fitting, the ring-shaped cavity groove 7 is formed by the relative assembly of the tail cover 3 and the connector sleeve 2 to clamp and stably limit the ring-shaped sealing structure 8. Several sealing rings on the inner wall The protrusion 80 forms a multi-mating seal for the insulating jacket of the cable 4, and at the same time, it has a large amount of matching deformation, which meets the adaptability requirements of the sealing and fitting of the cables 4 with different diameters and specifications, and has reliable sealing performance and good compatibility.

In a specific embodiment, the annular sealing structure 8 includes a sealing sleeve body 81 for carrying the sealing ring protrusion, and a sealing limiting ring arranged on the sealing sleeve body for limiting in the groove of the ring cavity. part 82, the two ends of the sealing pipe casing are respectively provided with an extension matching casing 810.

Specifically, the abutment seal between the connector sleeve 2 and the end wall 6 of the cap is realized by the sealing limit ring portion 82, and the sealing sleeve body 81 uses the extended matching sleeve body 810 to realize the extended inner wall support at both ends, satisfying Its loading stability meets the stability requirements of the assembled piercing cable 4, and the sealing ring convex 80 is reliable in deformation when mating.

In a specific embodiment, a sealing and limiting cooperation structure 9 is respectively provided between the sealing and limiting ring portion 82 and the end wall of the cap and the end wall of the connector sleeve.

The sealing limit cooperation structure 9 includes an outer peripheral convex ring 821 arranged on the end surface of the sealing limiting ring part, a matching ring groove 822 arranged between the outer peripheral convex ring and the sealing tube casing,

The end wall of the cap and the end wall of the connector sleeve are respectively provided with a matching ring groove 91 matching with the outer peripheral convex ring and a matching ring rib 92 matching with the matching ring groove.

That is, the mortise and tenon fit between the ring groove and the ring rib meets the radial relative stability requirements after clamping and locking, and at the same time meets the excellent sealing requirements of relative clamping.

In a specific embodiment, a deformation ring groove 800 is provided between any adjacent sealing ring protrusions on the inner wall of the annular sealing structure 8 . The sealing ring protrusion is a serrated ring protrusion with a triangular cross section.

That is, the sealing ring protrusion 80 and the deformation ring groove 800 are used to form a continuous wave-shaped structure, which meets the requirements of adaptive deformation when the cable is connected, and the connection is smooth and efficient while the sealing fit is stable.

In a specific embodiment, the connector socket and the tail cap are screwed and rotated. The connector sleeve 2 is provided with an outer wall thread section 21, the tail cap sleeve 5 is provided with an inner wall thread section 50 matching with the outer wall thread section, and the connector sleeve 2 is provided with a spacer for limiting the tail cover sleeve. The limiting ring platform 22.

That is, the outer wall threaded section 21 is matched with the inner wall threaded section 50 to meet the requirement of rotating assembly, and the limit ring platform 22 is used for relative screwing and limited cooperation to ensure the accuracy of assembly and cooperation.

Of course, the screw fit is only one embodiment of this case, and the use of relative plug-in buckle locking, locking elements to the associated locking structure between the connector sleeve and the end cap, etc., are also within the scope of protection of this case.

In a specific embodiment, the end of the connector sleeve 2 away from the tail cap is provided with an assembly fitting end 22, the inner lumen wall of the assembly fitting end is provided with an assembly matching thread section 221, and the outer pipe wall is provided with a locking Cooperate with ring rib 222.

Specifically, the connector sleeve 2 can be assembled and fitted with the fixed base such as the connector base through the assembled fitting end 22, and its assembled threaded section 221 can realize screw fit, while its lock The fixed-fit ring rib 222 can easily realize the axial relative locking of the connectors after mating, and meet the stability requirements of the connectors.

From the above description, it can be found that the cable waterproof connection tail cap structure of a connector of the present invention, through the design of the built-in ring-shaped sealing structure, several sealing ring protrusions can be more reliably sealed and matched with the cable, and the waterproof performance It is more significant, and at the same time meets the compatibility assembly requirements of cables with certain wire diameter differences. It satisfies the relative clamping and locking stability of the built-in ring-shaped sealing structure, and the assembly process is not easy to cause deformation. At the same time, there is a limit and sealing structure between the clamping end faces to ensure the assembly stability and sealing performance of the connector. The assembly structure is simple and ingenious, the assembly is convenient and efficient, and the cost of the connector is also effectively controlled.

The term "comprising" or any other similar term is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus/apparatus comprising a set of elements includes not only those elements but also other elements not expressly listed, or Also included are elements inherent in these processes, methods, articles, or devices/devices.

So far, the technical solution of the utility model has been described in conjunction with the preferred implementations shown in the accompanying drawings, however, those skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific implementations. On the premise of not departing from the principle of the utility model, those skilled in the art can make equivalent changes or substitutions to relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the utility model.

Claims (9)

1. A cable waterproof connection tail cap structure for a connector, comprising a connector sleeve for carrying an electrical terminal, and a tail cap that is detachably matched with the connector sleeve, and the electrical terminal faces One end of the tail cap is provided with a conduction matching groove for matching with the guide core of the cable, and the tail cap includes a tail cap sleeve for being socketed on the outer periphery of the connector sleeve, and is provided for the A cap end wall through which the cable passes through, characterized by: An annular cavity groove is formed between the connector sleeve and the end wall of the cap, and an annular sealing structure is provided in the annular cavity, and the inner wall of the annular sealing structure is provided with There are several seal ring protrusions. 2. The cable waterproof connection tail cap structure of a connector according to claim 1, characterized in that: The annular sealing structure includes a sealing sleeve body for carrying the sealing ring protrusion, and a sealing limiting ring part arranged on the sealing sleeve body for limiting in the groove of the ring cavity , The two ends of the sealing pipe sleeve are respectively provided with an extended matching sleeve. 3. The cable waterproof connection tail cap structure of a connector according to claim 2, characterized in that: Sealing and limiting fitting structures are respectively provided between the sealing and limiting ring part, the end wall of the cap and the end wall of the connector sleeve. 4. The cable waterproof connection tail cap structure of a connector according to claim 3, characterized in that: The sealing limit fit structure includes an outer peripheral convex ring arranged on the end surface of the sealing limit ring part, and a matching ring groove arranged between the outer peripheral convex ring and the sealing tube casing, The end wall of the cap and the end wall of the connector sleeve are respectively provided with a matching ring groove matching with the outer peripheral convex ring and a matching ring rib matching with the matching ring groove. 5. The cable waterproof connection tail cap structure of a connector according to any one of claims 1 to 4, characterized in that: A deformation ring groove is provided between any adjacent sealing ring protrusions on the inner wall of the annular sealing structure. 6. The cable waterproof connection tail cap structure of a connector according to claim 5, characterized in that: The sealing ring protrusion is a serrated ring protrusion with a triangular cross section. 7. The cable waterproof connection tail cap structure of a connector according to claim 5, characterized in that: The connection between the connector sleeve and the tail cap is screwed and rotated. 8. The cable waterproof connection tail cap structure of a connector according to claim 7, characterized in that: The connector sleeve is provided with an outer wall threaded section, the tail cap sleeve is provided with an inner wall threaded section matching the outer wall threaded section, and the connector sleeve is provided with a The limit ring platform for the limit of the pipe sleeve. 9. The cable waterproof connection tail cap structure of a connector according to claim 8, characterized in that: The end of the connector sleeve away from the tail cap is provided with an assembly fitting end, the inner lumen wall of the assembly fitting end is provided with an assembly fitting thread section, and the outer pipe wall is provided with a locking fitting ring rib.