Cable waterproof connection tail cap structure of connector
Technical Field
The utility model relates to a cable waterproof connection tail cap structure of a connector, and belongs to the technical field of connector sealing assembly structures.
Background
Connectors are a component that we electronic engineering technicians often contact. The circuit has very simple function that a bridge for communication is erected between the blocked or isolated circuits in the circuit, so that current flows, and the circuit realizes the preset function. Connectors are an indispensable component in electronic devices, and you always find one or more connectors when looking along the path of current flow. The connector forms and structures are varied, and there are various types of connectors according to the application objects, frequencies, power, application environments, and the like.
In general, the connector includes matched male end and female end, and male end and female end all include the connector housing, set up the electric terminal that meets in the connector housing, pass the connector housing and connect the cable that electric terminal switched on the adaptation mutually, in traditional connector, equipment is loaded down with trivial details and the leakproofness between cable and the connector housing is difficult to obtain the guarantee between cable and the electric terminal.
For this situation, chinese patent application No. CN217848515U discloses a straight-head energy storage connector and connector assembly, which comprises a socket housing, an electrical terminal located in the socket housing, and an external barrel detachably connected to the socket housing, wherein the external barrel is provided with an internal barrel in sealing fit with a cable.
The ring platform for the cable to pass through is arranged on the inner wall of the ring platform, the diameter of the inner wall of the ring platform is relatively fixed, the ring platform is only suitable for cross-connection fit sealing of a single-gauge cable, meanwhile, the relative fit tolerance is smaller, the situation that the sealing performance is insufficient or the assembly cannot be realized easily occurs, in addition, after the electric terminal is matched with the cable, the external connection barrel and the socket shell are required to be assembled in a screw fit mode, the axial size of the traditional inner connection barrel is larger, the barrel wall is thinner, the assembly operation is difficult, meanwhile, certain torsion damage is easily generated on the inner connection barrel, the serious damage leads to product scrapping, and the yield of the product is limited.
Disclosure of Invention
The utility model aims to solve the defects of the prior art, and provides a waterproof cable connection tail cap structure of a connector, aiming at the problems of poor compatibility, poor strength of a built-in assembly structure, poor carrying stability and the like of a traditional inner connecting barrel.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the waterproof cable connection tail cap structure of the connector comprises a connector sleeve for carrying an electric terminal and a tail cap detachably matched with the connector sleeve, wherein one end of the electric terminal, facing the tail cap, is provided with a conduction matching groove for matching with a guide core of a cable, the tail cap comprises a tail cap sleeve for sleeving the periphery of the connector sleeve and a cap end wall for the cable to pass through,
an annular cavity groove is formed between the connector pipe sleeve and the end wall of the cap, an annular sealing structural member which is arranged in a limiting mode is arranged in the annular cavity groove, and a plurality of sealing ring protrusions are arranged on the inner wall of the annular sealing structural member.
Preferably, the annular sealing structure comprises a sealing pipe sleeve body for carrying the sealing ring bulge and a sealing limiting ring part arranged on the sealing pipe sleeve body and used for limiting in the annular cavity groove,
the two ends of the sealing pipe sleeve body are respectively provided with an extension matching sleeve body.
Preferably, a sealing limit matching structure is respectively arranged between the sealing limit ring part and the end wall of the cap and the end wall of the connector sleeve.
Preferably, the sealing limit matching structure comprises a peripheral convex ring arranged on the end face of the sealing limit ring part and a matching ring groove arranged between the peripheral convex ring and the sealing pipe sleeve body,
the end wall of the cap and the end face wall of the connector pipe sleeve are respectively provided with a matching ring groove matched with the outer Zhou Tuhuan and a matching ring rib matched with the matching ring groove.
Preferably, a deformation ring groove is arranged between any adjacent sealing ring protrusions on the inner wall of the annular sealing structural member.
Preferably, the sealing ring bulge is a saw-tooth-shaped bulge with a triangular section.
Preferably, the connector sleeve is in threaded rotary engagement with the tail cap.
Preferably, the connector pipe sleeve is provided with an outer wall thread section, the tail cover pipe sleeve is provided with an inner wall thread section matched with the outer wall thread section, and the connector pipe sleeve is provided with a limiting ring table for limiting the tail cover pipe sleeve.
Preferably, one end of the connector pipe sleeve, which is away from the tail cover, is provided with a group assembling end, an assembling threaded section is arranged on the inner cavity wall of the group assembling end, and a locking matching annular rib is arranged on the outer pipe wall.
The beneficial effects of the utility model are mainly as follows:
1. through the design of built-in annular seal structure spare, its a plurality of sealing ring protruding can realize comparatively reliably sealing the joining in marriage with the cable and connect, waterproof performance is comparatively showing, satisfies certain wire diameter difference cable compatibility equipment demand simultaneously.
2. The relative clamping locking stability of the built-in annular sealing structural member is met, deformation is not easy to occur in the assembling process, and meanwhile, a limiting and sealing structure exists between the clamping end faces, so that the assembling stability and the sealing reliability of the connector are ensured.
3. The assembly structure is simple and ingenious, the assembly is convenient and efficient, and the cost of the connector is effectively controlled.
Drawings
Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:
fig. 1 is an exploded view of a waterproof cable-connection tail cap structure of a connector according to the present utility model.
Fig. 2 is a schematic view of a partially assembled structure of a waterproof cable-connecting tail cap structure of a connector according to the present utility model.
Fig. 3 is a schematic view of a partially cut-away structure of a finished product of a waterproof cable-connecting tail cap structure of a connector according to the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the present utility model are shown in the drawings. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The utility model provides a waterproof cable connection tail cap structure of a connector, which comprises a connector sleeve 2 for carrying an electric terminal 1 and a tail cap 3 detachably matched with the connector sleeve 2, wherein one end of the electric terminal 1 facing the tail cap is provided with a conduction matching groove 10 for matching with a guide core 40 of a cable 4, and the tail cap 3 comprises a tail cap sleeve 5 for sleeving on the periphery of the connector sleeve and a cap end wall 6 provided with a power cable passing through hole 60.
The sealing structure of the traditional connector adopts the form of a lining thin-wall ring sleeve or a sealing filling body to realize sealing assembly, the diameter specification of the lining thin-wall ring sleeve applicable to the cable 4 is relatively single, meanwhile, the lining thin-wall ring sleeve is easy to deform in the assembling and connecting process to cause the loss of tightness, and the sealing filling body has higher cost and complex process on one hand and is not beneficial to maintenance.
In this case, as shown in fig. 1 to 3, a ring-shaped cavity 7 is formed between the connector sleeve 2 and the end wall 6 of the cap, a ring-shaped sealing structural member 8 which is arranged in a limiting manner is arranged in the ring-shaped cavity 7, and a plurality of sealing ring protrusions 80 are arranged on the inner wall of the ring-shaped sealing structural member.
Specifically, during assembly and connection, the annular cavity groove 7 is formed by relatively assembling the tail cover 3 and the connector sleeve 2 to clamp and stably limit the annular sealing structural member 8, a plurality of sealing ring protrusions 80 on the inner wall of the annular sealing structural member form multi-channel matching and connection sealing for the insulating jacket of the cable 4, and meanwhile, large matching deformation exists, so that the sealing and connection adaptability requirements of cables 4 with various diameter difference specifications are met, and the sealing performance is reliable and the compatibility is excellent.
In a specific embodiment, the annular sealing structure 8 comprises a sealing sleeve body 81 for carrying the sealing ring to be convex, and a sealing limiting ring part 82 arranged on the sealing sleeve body and used for limiting in the annular cavity groove, and two ends of the sealing sleeve body are respectively provided with an extension matching sleeve body 810.
Specifically, the sealing limiting ring 82 is used for realizing abutting sealing between the connector sleeve 2 and the end wall 6 of the cap, the sealing sleeve body 81 utilizes the extension matching sleeve body 810 to realize the extension inner wall support at two ends, the requirements of carrying stability and stability of the assembled cross-connected cable 4 are met, and the sealing ring protrusion 80 is reliably matched and deformed during matching.
In one embodiment, a seal limit fitting structure 9 is provided between the seal limit ring portion 82 and the end wall of the cap and the end wall of the connector sleeve, respectively.
The seal limit matching structure 9 comprises an outer Zhou Tuhuan 821 arranged on the end face of the seal limit ring part and a matching ring groove 822 arranged between the outer circumference convex ring and the seal pipe sleeve body,
the end wall of the cap and the end face wall of the connector sleeve are respectively provided with a matching ring groove 91 matched with the outer Zhou Tuhuan and a matching ring rib 92 matched with the matching ring groove.
The radial relative stability requirement after clamping and locking is met by utilizing mortise-tenon matching of the annular groove and the annular rib, and the excellent sealing requirement of relative clamping is met.
In one embodiment, a deformation ring groove 800 is provided between any adjacent seal ring protrusions on the inner wall of the annular seal structure 8. The sealing ring bulge is a saw-tooth type bulge with a triangular section.
Namely, the sealing ring bulge 80 and the deformation ring groove 800 form a continuous wave-shaped structure, so that the requirement of the adaptive deformation amount of the cable in the process of threading is met, the threading is smooth and efficient, and the sealing fit is stable.
In one embodiment, the connector shroud and the tail cap are threaded for rotational engagement. The connector pipe sleeve 2 is provided with an outer wall thread section 21, the tail cover pipe sleeve 5 is provided with an inner wall thread section 50 matched with the outer wall thread section, and the connector pipe sleeve 2 is provided with a limiting ring table 22 for limiting the tail cover pipe sleeve.
Namely, the outer wall thread section 21 and the inner wall thread section 50 are matched to meet the assembly connection requirement of the rotating group, and the limiting ring table 22 is used for relatively screwing and limiting the assembly connection requirement, so that the assembly connection precision is ensured.
Of course, the screw fitting is only one embodiment of the present application, and the use of relative plug-in buckle locking, and locking structure of the connector sleeve and the tail cover by the locking member is also within the scope of protection.
In one embodiment, the end of the connector sleeve 2 facing away from the tail cap is provided with a set fitting end 22, the inner lumen wall of the set fitting end is provided with a set fitting threaded section 221, and the outer tube wall is provided with a locking fitting annular rib 222.
Specifically, the connector sleeve 2 can be assembled and matched with a fixing base body such as a connector base through the assembling and matching end 22, the assembling and matching threaded section 221 can be in threaded connection and the locking and matching annular rib 222 can easily realize axial relative locking after the connector is in plug connection and match, so that the requirement of connector stability is met.
Through the description, the cable waterproof connection tail cap structure of the connector can be found, through the design of the built-in annular sealing structural member, a plurality of sealing rings can be in reliable sealing connection with a cable, the waterproof performance is obvious, and meanwhile, the compatibility assembly requirement of cables with certain wire diameter difference is met. The relative clamping locking stability of the built-in annular sealing structural member is met, deformation is not easy to occur in the assembling process, and meanwhile, a limiting and sealing structure exists between the clamping end faces, so that the assembling stability and the sealing reliability of the connector are ensured. The assembly structure is simple and ingenious, the assembly is convenient and efficient, and the cost of the connector is effectively controlled.
The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus/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/apparatus.
Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.