Wire end connector and connector assembly

Abstract

The utility model discloses a wire end connector and a connector assembly, and the wire end connector comprises a plastic pedestal, a metal upper housing disposed on the upper side of the plastic pedestal, a metal lower housing disposed on the lower side of the plastic pedestal, and a wire end signal terminal and a wire end shielding sheet which are disposed on the plastic pedestal. The wire end shielding sheet is located between two adjacent wire end signal terminals, a first lock catch structure is arranged on the metal lower shell, a second lock catch structure is arranged on a metal shell of the plate end connector, and when the plate end connector is inserted into the wire end connector, the first lock catch structure and the second lock catch structure are locked. Compared with the prior art, the locking structure is high in mechanical strength, and can ensure that the board end connector and the wire end connector are stably inserted without being separated.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connectors, in particular to a line end connector and a connector assembly. Background Art

[0002] RF connectors are usually used to connect to cables or equipment for electrical connection of transmission line systems. RF signals are widely used in the field of signal transmission due to their wide bandwidth and strong anti-attenuation ability. With the development of communication technology, RF connectors have also begun to be widely used in the automotive field.

[0003] At present, the plug-in structure of the board-side connector and the line-side connector adopts a snap-on connection by setting a protrusion on the metal shell of the board-side connector and an inner groove corresponding to the protrusion on the outer shell of the line-side connector. This connection method has low mechanical strength. When used in a bumpy and harsh environment, the board-side connector and the line-side connector are not firmly plugged in and are easy to disengage.

[0004] Therefore, in order to ensure that the RF connector can maintain good performance in harsh usage environments such as automobiles, it is urgent to solve the above technical problems. Utility Model Content

[0005] The embodiments of the present application provide a line-end connector and a connector assembly, wherein the locking structure has high mechanical strength and can ensure that the board-end connector and the line-end connector are firmly plugged in and do not disengage.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A line end connector comprises: a plastic base, a metal upper shell located on the upper side of the plastic base, a metal lower shell located on the lower side of the plastic base, a line end signal terminal and a line end shielding sheet installed on the plastic base, the line end shielding sheet is located between two adjacent line end signal terminals, and a first locking structure is provided on the metal lower shell.

[0008] Preferably, the metal lower shell includes a frame-shaped structure and a shielding cover, and the first locking structure is formed by bending a side of the shielding cover away from the frame-shaped structure and extending in the reverse direction.

[0009] Preferably, the first locking structure comprises: a U-shaped elastic arm formed by bending from a side edge of the shielding cover and a locking protrusion arranged on an extension section of the U-shaped elastic arm.

[0010] Preferably, the locking protrusion is formed by partially tearing and bending outwards the extension section of the U-shaped elastic arm.

[0011] Preferably, the first locking structure further includes a pressing portion, and the pressing portion is formed by bending the end of the extension section of the U-shaped elastic arm outward.

[0012] Preferably, an engaging tongue extending from bottom to top is provided on the inner sides of a pair of oppositely disposed side walls of the frame-type structure, and the engaging tongue is used to be embedded in the board-end connector and to be in electrical contact with the metal shell of the board-end connector.

[0013] Preferably, the metal upper shell includes a cover portion and a riveted portion, and two sides of the cover portion protrude outward and are bent to form a limiting portion, and the limiting portion is located above the locking protrusion.

[0014] Preferably, the line end connector further comprises a shielding reinforcement shell, a limiting protrusion is arranged at the bottom of the shielding reinforcement shell, and a cable fixing portion is arranged at the rear end.

[0015] The utility model also provides a connector assembly, including the above line-end connector and a board-end connector, wherein:

[0016] The board-end connector comprises: an insulating base, a board-end signal terminal mounted on the insulating base, a metal shell embedded on the outer side of the insulating base, and a board-end shielding sheet. When the board-end connector is plugged into the line-end connector, the line-end shielding sheet is electrically in contact with the board-end shielding sheet to form a mutually independent shielding space. The line-end signal terminal is electrically connected to the board-end signal terminal to transmit signals and / or power. The metal shell is electrically in contact with the metal lower shell.

[0017] A second locking structure is provided on the metal shell, and when the board-end connector is plugged into the line-end connector, the first locking structure is locked with the second locking structure.

[0018] Preferably, the second locking structure includes a connecting portion connected to the frame-shaped body of the metal shell, and a locking portion extending upward from the connecting portion, and the locking portion is provided with a locking through hole matching the locking protrusion on the first locking structure, and when the board-end connector is plugged into the wire-end connector, the locking protrusion is located in the locking through hole.

[0019] The beneficial effect of the utility model is that a first locking structure is provided on the metal lower shell of the line-end connector, and a second locking structure is provided on the metal shell of the board-end connector. When the board-end connector is plugged into the line-end connector, the first locking structure is locked with the second locking structure, so that the locking structure has high mechanical strength, thereby ensuring that the board-end connector and the line-end connector are firmly plugged in and do not disengage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure explosion of the line end connector in the embodiment of the utility model;

[0021] Figure 2It is a schematic diagram of the structure of the metal upper shell in the embodiment of the utility model;

[0022] Figure 3 It is a schematic diagram of the structure of the metal lower shell in the embodiment of the utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the shielding reinforcement shell in the embodiment of the utility model;

[0024] Figure 5 It is a schematic diagram of the structure explosion of the board-end connector of the utility model;

[0025] Figure 6 It is a structural schematic diagram of the connector assembly (in plugged state) in an embodiment of the utility model;

[0026] Figure 7 It is a structural schematic diagram of the connector assembly (unplugged state) in the embodiment of the utility model.

[0027] The reference numerals in the drawings of the specification include:

[0028] Wire-end connector 100, plastic base 110, metal upper shell 120, cover 121, riveting part 122, limiting part 123, metal lower shell 130, first locking structure 131, U-shaped elastic arm 131A, locking protrusion 131B, pressing part 131C, frame structure 132, engaging tongue 132A, shielding cover 133, wire-end signal terminal 140, wire-end shielding sheet 150, shielding reinforcement shell 160, limiting protrusion 161, cable fixing part 162, board-end connector 200, insulating base 210, board-end signal terminal 220, metal shell 230, second locking structure 231, connecting part 231A, locking part 231B, locking through hole 231C, board-end shielding sheet 240, cable 300. DETAILED DESCRIPTION

[0029] The embodiments of the present application provide a wire-end connector and a connector assembly to solve the technical problems in the prior art that the plug-in structure of the board-end connector and the wire-end connector has low mechanical strength and is unstable and easily detached when used in a bumpy and harsh environment.

[0030] The technical solution in the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows:

[0031] A first locking structure is provided on the metal lower shell of the line-end connector, and a second locking structure is provided on the metal shell of the board-end connector. When the board-end connector is plugged into the line-end connector, the first locking structure is locked with the second locking structure, so that the locking structure has high mechanical strength, thereby ensuring that the board-end connector and the line-end connector are firmly plugged in and do not disengage.

[0032] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0033] like Figures 1 to 4 As shown, this is an embodiment of the present application:

[0034] A line terminal connector 100 includes: a plastic base 110, a metal upper shell 120 located on the upper side of the plastic base 110, a metal lower shell 130 located on the lower side of the plastic base 110, a line terminal signal terminal 140 and a line terminal shielding sheet 150 installed on the plastic base 110, the line terminal shielding sheet 150 is located between two adjacent line terminal signal terminals 140, and a first locking structure 131 is provided on the metal lower shell 130. The metal lower shell 130 includes a frame structure 132 and a shielding cover 133, and the first locking structure 131 is formed by bending a side of the shielding cover 133 away from the frame structure 132 and extending in the reverse direction. Exemplarily, with emphasis on reference 3, the first locking structure 131 includes: a U-shaped elastic arm 131A formed by bending from the side edge of the shielding cover 133 and a locking protrusion 131B provided on the extension section of the U-shaped elastic arm 131A. It is understandable that the elasticity of the first locking structure can be increased by a longer U-shaped elastic arm, so as to prevent the first locking structure from being deformed and damaged after multiple insertions. The locking protrusion 131B is formed by partially tearing and bending the extension section of the U-shaped elastic arm 131A outward. In this way, the process is simple and the efficiency of production and assembly can be improved.

[0035] Preferably, refer again Figure 3 A pair of oppositely disposed side walls of the frame structure 132 are provided with an engaging tongue 132A extending from bottom to top, and the engaging tongue 132A is used to be embedded in the board-end connector 200 and to be in electrical contact with the metal shell 230 of the board-end connector 200. The provision of the engaging tongue 132A enhances the engagement strength of the line-end connector and the board-end connector when they are plugged in, improves the flexible plugging and unplugging capability of the connector assembly, and makes the operator feel more comfortable when plugging and unplugging the line-end connector.

[0036] Preferably, the first locking structure 131 further includes a pressing portion 131C, which is formed by bending the end of the extension section of the U-shaped elastic arm 131A outward. By pressing the pressing portions 131C on both sides, the locking protrusion 131B can be disengaged from the locking through hole 231C of the board-end connector 200, thereby unlocking the locking structure.

[0037] In order to solve the technical problem of low mechanical strength of the plug-in structure of the board-end connector and the line-end connector in the prior art, a first locking structure is provided on the metal lower shell of the line-end connector, and a second locking structure is provided on the metal shell of the board-end connector. When the board-end connector and the line-end connector are plugged in, the first locking structure and the second locking structure are locked, so that the locking structure has high mechanical strength, and ensures that the board-end connector and the line-end connector are firmly plugged in and do not disengage. At the same time, in terms of performance, the metal upper shell, the metal lower shell, and the metal shell have a stable shielding effect, which can ensure the stability of the grounding shielding, and can also improve the assembly efficiency in terms of process, which is conducive to the promotion and application of line-end connectors, board-end connectors and connector components in industry.

[0038] Further, refer to Figure 2 As shown, the metal upper shell 120 includes a cover portion 121 and a riveted portion 122. Both sides of the cover portion 121 protrude outward and are bent to form a limiting portion 123. The limiting portion 123 is located above the locking protrusion 131B. In this way, when the line connector and the board connector are plugged in, the limiting portion 123 can prevent the first locking structure 131 from deviating in a direction away from the locking position.

[0039] Further, refer to Figure 4 As shown, the line end connector 100 further includes a shielding reinforcement shell 160, the bottom of which is provided with a limiting protrusion 161, which can limit one end of the line end shielding sheet within the frame groove of the shielding reinforcement shell 160, and a cable fixing portion 162 for fixing the cable is provided at the rear end. The shielding reinforcement shell 160 can be disposed between the plastic base 110 and the metal lower shell 130, which can further prevent signal leakage and improve the anti-interference performance of the connector assembly.

[0040] like Figures 5 to 7 As shown, the present application also provides a connector assembly, the connector assembly includes the above-mentioned line end connector 100, and also includes a board end connector 200, the board end connector 200 includes:

[0041] An insulating base 210, a board-end signal terminal 220 installed on the insulating base 210, a metal shell 230 embedded in the outer side of the insulating base, and a board-end shielding plate 240. The board-end shielding plate 240 is installed in the spacer groove of the insulating base 210 and cooperates with the minimum gap between the inner walls on both sides of the metal shell 120 to form two independent shielding spaces. Each independent shielding space has a board-end signal terminal 220, which can effectively prevent signal leakage and signal interference, thereby making the board-end connector and the connector assembly have excellent shielding performance.

[0042] When the board-end connector 200 is plugged into the line-end connector 100, the line-end shielding sheet 150 is in electrical contact with the board-end shielding sheet 240 to form a mutually independent shielding space, the line-end signal terminal 140 is electrically connected with the board-end signal terminal 220 to transmit signals and / or power, and the metal shell 230 is in electrical contact with the metal lower shell 130;

[0043] The metal shell 230 is provided with a second locking structure 231 . When the board-side connector 200 is plugged into the line-side connector 100 , the first locking structure 131 is locked with the second locking structure 231 .

[0044] Preferably, refer to Figure 5 As shown, the second locking structure 231 includes a connecting portion 231A connected to the frame-shaped body of the metal shell 230, and a locking portion 231B extending upward from the connecting portion 231A, and the locking portion 231B is provided with a locking through hole 231C matching the locking protrusion 131B on the first locking structure 131, when the board-end connector 200 is plugged into the line-end connector 100, the locking protrusion 131B is located in the locking through hole 231C.

[0045] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The above-mentioned embodiments only express the implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A line end connector, characterized in that: include: A plastic base, a metal upper shell located on the upper side of the plastic base, a metal lower shell located on the lower side of the plastic base, a line end signal terminal and a line end shielding plate installed on the plastic base, the line end shielding plate is located between two adjacent line end signal terminals, and a first locking structure is provided on the metal lower shell.

2. The wire end connector according to claim 1, characterized in that: The metal lower shell includes a frame structure and a shielding cover, and the first locking structure is formed by bending a side of the shielding cover away from the frame structure and extending in the reverse direction.

3. The wire end connector according to claim 2, characterized in that: The first locking structure includes: a U-shaped elastic arm formed by bending from the side edge of the shielding cover and a locking protrusion arranged on an extension section of the U-shaped elastic arm.

4. The wire end connector according to claim 3, characterized in that: The locking protrusion is formed by tearing part of the extension section of the U-shaped elastic arm and bending it outward.

5. The wire end connector according to claim 4, characterized in that: The first locking structure also includes a pressing portion, and the pressing portion is formed by bending the end of the extension section of the U-shaped elastic arm outward.

6. The wire end connector according to claim 2, characterized in that: A pair of oppositely disposed side walls of the frame structure are provided with engaging tongues extending from bottom to top on the inner sides thereof. The engaging tongues are used to be embedded in the board-end connector and to be in electrical contact with the metal shell of the board-end connector.

7. The wire end connector according to claim 3 or 4, characterized in that: The metal upper shell includes a cover portion and a riveted portion. Both sides of the cover portion protrude outward and are bent to form a limiting portion, and the limiting portion is located above the locking protrusion.

8. The wire end connector according to claim 1, characterized in that: The line end connector further comprises a shielding reinforcement shell, a limiting protrusion is arranged at the bottom of the shielding reinforcement shell, and a cable fixing portion is arranged at the rear end.

9. A connector assembly, characterized in that: The wire end connector according to any one of claims 1 to 8 further comprises a board end connector, wherein: The board-end connector comprises: an insulating base, a board-end signal terminal mounted on the insulating base, a metal shell embedded on the outer side of the insulating base, and a board-end shielding sheet. When the board-end connector is plugged into the line-end connector, the line-end shielding sheet is electrically in contact with the board-end shielding sheet to form a mutually independent shielding space. The line-end signal terminal is electrically connected to the board-end signal terminal to transmit signals and / or power. The metal shell is electrically in contact with the metal lower shell. A second locking structure is provided on the metal shell, and when the board-end connector is plugged into the line-end connector, the first locking structure is locked with the second locking structure.

10. The connector assembly according to claim 9, characterized in that The second locking structure includes a connecting portion connected to the frame-shaped body of the metal shell, and a locking portion extending upward from the connecting portion, and the locking portion is provided with a locking through hole matching the locking protrusion on the first locking structure, and when the board-end connector is plugged into the wire-end connector, the locking protrusion is located in the locking through hole.

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