Coaxial connector with terminal locking structure

Abstract

A coaxial connector with a terminal locking structure comprises a connector shell, a terminal cavity penetrating through a main body part and an insertion part is arranged in the connector shell, and a TPA locking hole communicated with the terminal cavity is formed in the connector shell; the terminal assembly is formed by sequentially sleeving a terminal, a rubber sleeve and a metal sleeve from inside to outside, the peripheral wall of the metal sleeve is provided with a first annular convex edge and a second annular convex edge, and a first locking ring groove is formed between the first annular convex edge and the second annular convex edge; the terminal assembly is inserted into the terminal cavity in a matched mode, and the first locking ring groove and the TPA locking hole are arranged correspondingly. The TPA locking piece is provided with a cover part and a first locking part, and the first locking part is arranged on the bottom side of the cover part and forms two oppositely arranged sheet structures; the TPA locking piece is inserted into the TPA locking hole in a matched mode, and the first locking part is connected into the first locking ring groove in a clamped mode. According to the scheme, the TPA locking hole is formed in the joint of the main body part and the inserting part, so that the situation that the TPA locking piece is used due to incorrect installation can be avoided, and the stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a coaxial connector with a terminal locking structure. Background Art

[0002] The function of the connector is to realize the hub of power and signal transmission. The transmission reliability of the connector directly affects the performance stability of the product. The connector housing is plugged with terminals and TPA (Terminal Position Assurance) structure. At present, the TPA structure is usually used to clamp and fix the terminals to prevent them from moving in the connector housing.

[0003] Compared with one-piece injection-molded connectors, connectors with TPA structures require assembly steps. During the assembly process, due to external factors, the TPA structure may not be installed correctly. Since the TPA structure is small, this situation is usually difficult to detect, which will bring safety hazards and cause user complaints.

[0004] Therefore, in view of the shortcomings of the prior art, it is necessary to design a coaxial connector with a terminal locking structure to solve the above problems. Utility Model Content

[0005] In order to overcome the above-mentioned deficiencies in the prior art, the utility model aims to provide a coaxial connector with a terminal locking structure.

[0006] In order to achieve the above-mentioned purpose and other related purposes, the technical solution provided by the utility model is: a coaxial connector with a terminal locking structure, comprising:

[0007] A connector housing, the connector housing having a main body and a plug-in portion, a terminal cavity penetrating the main body and the plug-in portion is provided inside the connector housing, and a TPA locking hole communicating with the terminal cavity is provided at the connection between the main body and the plug-in portion;

[0008] A terminal assembly, the terminal assembly is composed of a terminal, a rubber sleeve and a metal sleeve, the rubber sleeve is fixedly sleeved on the outer periphery of the terminal, the metal sleeve is fixedly sleeved on the outer periphery of the rubber sleeve, the peripheral wall of the metal sleeve is provided with a first annular convex ridge and a second annular convex ridge spaced from each other, and a first locking ring groove is formed between the first annular convex ridge and the second annular convex ridge; the terminal assembly is inserted into the terminal cavity, and the first locking ring groove and the TPA locking hole are correspondingly arranged;

[0009] TPA locking member, the TPA locking member has a cover portion and a first locking portion, the first locking portion is arranged on the bottom side of the cover portion and is composed of two oppositely arranged sheet structures; the TPA locking member is inserted into the TPA locking hole, and the first locking portion is clamped in the first locking ring groove.

[0010] The preferred technical solution is: a locking hole communicating with the outside is provided on the inner peripheral wall of the TPA locking hole, an elastic locking buckle is provided on the outer peripheral wall of the cover, and the locking hole and the elastic locking buckle are arranged correspondingly.

[0011] The preferred technical solution is: a third annular ridge is further provided on the peripheral wall of the metal sleeve, the third annular ridge is located on the side of the first annular ridge away from the second annular ridge, and a second locking ring groove is formed between the third annular ridge and the first annular ridge.

[0012] The preferred technical solution is: the TPA locking member further has a second locking portion, and the second locking portion is configured as a plate-like structure; the TPA locking member is inserted into the TPA locking hole, and the second locking portion is clamped in the second locking ring groove.

[0013] The preferred technical solution is: the first locking portion is composed of a left locking piece and a right locking piece, the left locking piece and the right locking piece are vertically arranged along the axial direction of the terminal cavity, and the left locking piece and the right locking piece are both inclined inward along the mating direction of the terminal assembly.

[0014] The preferred technical solution is: the second locking portion is composed of a front locking plate, the front locking plate is vertically arranged along the radial direction of the terminal cavity, and the bottom end of the front locking plate is provided with a avoidance opening that fits with the second locking ring groove.

[0015] Due to the application of the above technical solution, the utility model has the following beneficial effects:

[0016] The utility model proposes a coaxial connector with a terminal locking structure, which separates the terminal assembly locking structure from the connector housing to cooperate with the TPA locking piece to realize the locking of the terminal assembly in the connector housing. Compared with the integral arrangement of the locking structure and the connector housing, the present application has the advantages of simple mold opening and cost saving. In addition, the TPA locking hole is arranged at the connection between the main body and the plug-in part of the connector housing, which can avoid the situation where the TPA locking piece is not installed correctly, resulting in a safety hazard. It has a simple structure and is easy to assemble, which greatly improves the stability of the coaxial connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of the overall structure of the coaxial connector.

[0018] Figure 2 This is a schematic diagram of the connector housing structure involved in the utility model.

[0019] Figure 3 This is a schematic diagram of the terminal assembly structure involved in the utility model.

[0020] Figure 4 The figure is a schematic diagram of the TPA locking member structure involved in the utility model. DETAILED DESCRIPTION

[0021] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0022] See also Figure 1-Figure 4 . It should be noted that in the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Example:

[0025] like Figures 1 to 4As shown, according to an overall technical concept of the utility model, a coaxial connector with a terminal locking structure is provided, including: a connector housing 1, the connector housing 1 having a main body 11 and a plug-in portion 12, a terminal cavity 13 penetrating the main body 11 and the plug-in portion 12 is provided inside the connector housing 1, and a TPA locking hole 14 communicating with the terminal cavity 13 is provided at the connection between the main body 11 and the plug-in portion 12; a terminal assembly 2, the terminal assembly 2 is composed of a terminal 21, a rubber sleeve 22 and a metal sleeve 23, the rubber sleeve 22 is fixedly sleeved on the outer periphery of the terminal 21, the metal sleeve 23 is fixedly sleeved on the outer periphery of the rubber sleeve 22, and the metal sleeve 2 3 is provided with a first annular rib 231 and a second annular rib 232 spaced apart from each other on its peripheral wall, and a first locking ring groove 234 is formed between the first annular rib 231 and the second annular rib 232; the terminal assembly 2 is inserted into the terminal cavity 13, and the first locking ring groove 234 and the TPA locking hole 14 are correspondingly arranged; the TPA locking member 3, the TPA locking member 3 has a cover portion 31 and a first locking portion 32, the first locking portion 32 is arranged on the bottom side of the cover portion 31 and is formed into two oppositely arranged sheet structures; the TPA locking member 3 is inserted into the TPA locking hole 14, and the first locking portion 32 is clamped in the first locking ring groove 234.

[0026] It should be noted that: (1) The locking structure is separated from the inside of the connector housing 1, mainly because of the complexity and high cost of mold opening. The adoption of this solution can save mold opening costs, thereby reducing production costs and bringing competitiveness to the product. (2) The TPA locking hole 14 is set at the connection between the main body 11 and the plug-in part 12 of the connector housing 1, which can play a role in assembly detection. If the TPA locking member 3 is not correctly installed in the TPA locking hole 14, part of the structure of the TPA locking member 3 will protrude from the outside of the plug-in part 12, making it difficult to plug in. Through this structure, connectors with TPA locking members 3 not installed in place can be removed before leaving the factory to avoid bad outflow.

[0027] like Figures 1 to 4 As shown, in an exemplary embodiment of the present invention, a locking hole 141 communicating with the outside is opened on the inner wall of the TPA locking hole 14, and an elastic locking buckle 311 is provided on the outer wall of the cover 31, and the locking hole 141 and the elastic locking buckle 311 are arranged correspondingly.

[0028] like Figures 1 to 4 As shown, in an exemplary embodiment of the utility model, a third annular ridge 233 is further provided on the peripheral wall of the metal sleeve 23, and the third annular ridge 233 is located on the side of the first annular ridge 231 away from the second annular ridge 232, and a second locking ring groove 235 is formed between the third annular ridge 233 and the first annular ridge 231.

[0029] like Figures 1 to 4As shown, in an exemplary embodiment of the present invention, the TPA locking member 3 also has a second locking portion 33, and the second locking portion 33 is configured as a plate-like structure; the TPA locking member 3 is inserted into the TPA locking hole 14, and the second locking portion 33 is clamped in the second locking ring groove 235.

[0030] like Figures 1 to 4 As shown, in an exemplary embodiment of the utility model, the first locking portion 32 is composed of a left locking piece 321 and a right locking piece 322, the left locking piece 321 and the right locking piece 322 are arranged vertically along the axial direction of the terminal cavity 13, and the left locking piece 321 and the right locking piece 322 are both arranged inwardly inclined along the mating direction of the terminal assembly 2. The inwardly inclined arrangement of the left locking piece 321 and the right locking piece 322 can reduce the possibility of the terminal assembly 2 being pulled out, thereby improving the installation stability of the terminal assembly 2 in the connector housing 1.

[0031] like Figures 1 to 4 As shown, in an exemplary embodiment of the utility model, the second locking portion 33 is composed of a front locking plate 331, which is vertically arranged along the radial direction of the terminal cavity 13, and the bottom end of the front locking plate 331 is provided with a avoidance opening that fits with the second locking ring groove 235.

[0032] Therefore, the utility model has the following advantages:

[0033] The utility model proposes a coaxial connector with a terminal locking structure, which separates the terminal assembly locking structure from the connector housing to cooperate with the TPA locking piece to realize the locking of the terminal assembly in the connector housing. Compared with the integral arrangement of the locking structure and the connector housing, the present application has the advantages of simple mold opening and cost saving. In addition, the TPA locking hole is arranged at the connection between the main body and the plug-in part of the connector housing, which can avoid the situation where the TPA locking piece is not installed correctly, resulting in a safety hazard. It has a simple structure and is easy to assemble, which greatly improves the stability of the coaxial connector.

[0034] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A coaxial connector with a terminal locking structure, characterized in that: include: A connector housing, the connector housing having a main body and a plug-in portion, a terminal cavity penetrating the main body and the plug-in portion is provided inside the connector housing, and a TPA locking hole communicating with the terminal cavity is provided at the connection between the main body and the plug-in portion; A terminal assembly, the terminal assembly is composed of a terminal, a rubber sleeve and a metal sleeve, the rubber sleeve is fixedly sleeved on the outer periphery of the terminal, the metal sleeve is fixedly sleeved on the outer periphery of the rubber sleeve, the peripheral wall of the metal sleeve is provided with a first annular convex ridge and a second annular convex ridge spaced from each other, and a first locking ring groove is formed between the first annular convex ridge and the second annular convex ridge; the terminal assembly is inserted into the terminal cavity, and the first locking ring groove and the TPA locking hole are correspondingly arranged; TPA locking member, the TPA locking member has a cover portion and a first locking portion, the first locking portion is arranged on the bottom side of the cover portion and is composed of two oppositely arranged sheet structures; the TPA locking member is inserted into the TPA locking hole, and the first locking portion is clamped in the first locking ring groove.

2. A coaxial connector with a terminal locking structure according to claim 1, characterized in that: A locking hole communicating with the outside is provided on the inner peripheral wall of the TPA locking hole, and an elastic locking buckle is provided on the outer peripheral wall of the cover portion, and the locking hole and the elastic locking buckle are arranged correspondingly.

3. The coaxial connector with a terminal locking structure according to claim 1, characterized in that: A third annular ridge is also provided on the peripheral wall of the metal sleeve. The third annular ridge is located on a side of the first annular ridge away from the second annular ridge. A second locking ring groove is formed between the third annular ridge and the first annular ridge.

4. A coaxial connector with a terminal locking structure according to claim 3, characterized in that: The TPA locking member also has a second locking portion, which is configured as a plate-shaped structure; the TPA locking member is inserted into the TPA locking hole, and the second locking portion is clamped in the second locking ring groove.

5. The coaxial connector with a terminal locking structure according to claim 1, characterized in that: The first locking portion is composed of a left locking piece and a right locking piece, and the left locking piece and the right locking piece are vertically arranged along the axial direction of the terminal cavity, and the left locking piece and the right locking piece are both inclined inwardly along the mating direction of the terminal assembly.

6. The coaxial connector with a terminal locking structure according to claim 4, characterized in that: The second locking portion is composed of a front locking plate, which is vertically arranged along the radial direction of the terminal cavity, and a bottom end of the front locking plate is provided with an avoidance opening that fits with the second locking ring groove.

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