Board end connector and connector assembly

Abstract

The invention discloses a plate end connector and a connector assembly, the plate end connector is provided with a plate end plastic base in a square frame shape, the plate end plastic base is arranged on the periphery of a plate end metal shell, the left side and the right side of the plate end plastic base are respectively provided with a buckling part in an upward protruding mode, and a wire end metal shell covering a wire end shielding shell is arranged on a wire end connector. The left side and the right side of the wire end metal shell are provided with lock catch parts, and when the plate end connector is inserted into the wire end connector, the lock catch parts of the wire end metal shell and the buckle parts of the plate end plastic base are matched with each other to form a clamping and locking structure. Compared with the prior art, the clamping and locking structure between the board end connector and the wire end connector is high in mechanical strength, it can be guaranteed that the board end connector and the wire end connector are stably inserted and do not loosen, and it is guaranteed that the connector keeps good performance in the severe environment such as an automobile.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical connectors, and in particular to a board-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 loosen.

[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. Summary of the invention

[0005] The embodiment of the present application provides a board-side connector and a connector assembly, which realizes a high mechanical strength of the locking structure between the board-side connector and the line-side connector, and can ensure that the board-side connector and the line-side connector are firmly plugged in and not loose, and ensure that the connector maintains good performance in harsh environments such as automobiles.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A board-end connector, comprising:

[0008] The board end insulator has terminal slots on the left and right sides and a shielding spacer slot between the two terminal slots;

[0009] A plate end metal shell fixed to the outside of the plate end insulator;

[0010] The board-side signal terminal is installed in the terminal slot;

[0011] The board end shielding spacer is installed in the shielding spacer groove;

[0012] The plate end plastic base in a square frame shape is arranged on the periphery of the plate end metal shell, and buckle parts are respectively protruded upwards on the left and right sides of the plate end plastic base.

[0013] Preferably, plate-shaped fixing parts are respectively arranged at four surrounding positions of the plate end plastic base, and columnar reinforcing parts are respectively arranged at four corners.

[0014] Preferably, a plurality of mounting parts are provided on the periphery of the plate end metal shell, and the mounting parts are fixedly connected to the plate-shaped fixing part.

[0015] Preferably, the plate end shielding spacer comprises a fixed bottom plate, and two elastic side plates formed by bending upwards on the left and right sides of the fixed bottom plate and presenting a symmetrical structure, and a first slot is formed between the two elastic side plates.

[0016] Preferably, the board-end signal terminal comprises a fixed bottom, and two elastic arms with a symmetrical structure formed by bending upwards at the front and rear sides of the fixed bottom, respectively, and a second slot is formed between the two elastic arms.

[0017] A connector assembly, comprising the above-mentioned board-end connector and a line-end connector plugged and connected with the above-mentioned board-end connector, wherein the line-end connector comprises:

[0018] Line end insulators;

[0019] A line terminal shielding shell installed outside the line terminal insulator;

[0020] A wire end metal shell covering the wire end shielding shell, wherein locking parts are arranged on the left and right sides of the wire end metal shell;

[0021] A line end signal terminal mounted in the line end insulator;

[0022] A cable electrically connected to the line end signal terminal;

[0023] When the board-end connector is plugged into the line-end connector, the line-end shielding shell is electrically in contact with the board-end shielding spacer 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 line-end metal shell is electrically connected to the board-end metal shell, and the locking portion of the line-end metal shell cooperates with the snap-on portion of the board-end plastic base to form a locking structure.

[0024] Preferably, the locking portion includes a U-shaped portion, a pressing portion extending outward from the U-shaped portion and then extending downward, and a locking protrusion provided on the outer side of the outer side wall of the U-shaped portion.

[0025] Preferably, the wire end shielding shell includes a frame-type structure and a shielding cover, a through accommodating groove is provided between the frame-type structure and the shielding cover, a spacer portion is provided in the accommodating groove, the spacer portion divides the accommodating groove into two left and right areas in the longitudinal direction, and a first wire clamping portion is provided on both sides of the connection between the spacer portion and the shielding cover.

[0026] Preferably, the spacer portion is provided with an engaging protrusion protruding toward the hollow area of ​​the frame-type structure.

[0027] Preferably, it also includes a shielding reinforcement plate arranged between the wire end shielding shell and the wire end metal shell, and two second wire clamping parts are torn and formed on the shielding reinforcement plate, and the second wire clamping parts cooperate with the first wire clamping parts to fix the cable.

[0028] The beneficial effects of the present invention are:

[0029] 1. A square-shaped board-end plastic base is provided on the board-end connector, which is provided on the periphery of the board-end metal shell, and buckle parts are respectively protruded upward on the left and right sides of the board-end plastic base, and a wire-end metal shell covering the wire-end shielding shell is provided on the line-end connector, and locking parts are provided on the left and right sides of the wire-end metal shell. When the board-end connector is plugged in with the wire-end connector, the locking parts of the wire-end metal shell and the buckle parts of the board-end plastic base cooperate with each other to form a locking structure, so that the locking structure has high mechanical strength, which can ensure that the board-end connector and the wire-end connector are firmly plugged in and not loose. It ensures that the connector maintains good performance in harsh practical environments such as automobiles.

[0030] 2. The signal terminals and shielding spacers of the board-side connector are set to a symmetrical structure. In this way, when the line-side connector and the board-side connector are snapped together, there is no need to identify the front or back side of the plug-in. That is, the cable can be snapped together normally whether it is located on the front or back side of the board-side connector, which is convenient for assembly.

[0031] 3. The wire end shielding shell and the wire end shielding spacer are integrally formed, so that the connector has higher shielding and anti-interference performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a three-dimensional schematic diagram of a connector assembly according to an embodiment of the present invention;

[0033] Figure 2 It is a structural schematic diagram of a connector assembly according to an embodiment of the present invention viewed from the rear of a cable;

[0034] Figure 3 is a cross-sectional schematic diagram of a connector assembly in a locked state according to an embodiment of the present invention;

[0035] Figure 4 is a cross-sectional schematic diagram of a connector assembly according to an embodiment of the present invention in a pressed and unlocked state;

[0036] Figure 5 is a schematic structural diagram of a board-end connector in an embodiment of the present invention;

[0037] Figure 6 A schematic structural diagram of a board-end connector from another perspective in an embodiment of the present invention;

[0038] Figure 7It is an exploded schematic diagram of a board-end connector in an embodiment of the present invention;

[0039] Figure 8 is a schematic structural diagram of a line end connector in an embodiment of the present invention;

[0040] Fig. 9 A schematic structural diagram of a line end connector in an embodiment of the present invention from another perspective;

[0041] Fig.10 Schematic diagram of an exploded view of a wire end connector in an embodiment of the present invention;

[0042] Fig.11 is a schematic structural diagram of a board end shielding spacer in an embodiment of the present invention;

[0043] Fig.12 is a schematic diagram of the structure of the board-end signal terminal in an embodiment of the present invention;

[0044] Fig.13 It is a schematic diagram of the structure of the wire end shielding shell in an embodiment of the present invention.

[0045] The reference numerals in the drawings of the specification include:

[0046] Connector assembly 100, board connector 200, board insulator 21, terminal slot 211, shielding spacer slot 212, board metal shell 22, mounting portion 221, board signal terminal 23, fixed bottom 231, elastic arm 232, second slot 233, board shielding spacer 24, fixed bottom plate 241, elastic side plate 242, first slot 243, board plastic base 25, buckle portion 251, fixed portion 252, columnar reinforcement portion -253, line end connector-300, line end insulator-31, line end shielding shell-32, frame structure-321, shielding cover-322, accommodating groove-323, spacer part-324, interlocking protrusion part-324A, first line clamping part-325, line end metal shell-33, locking part-331, U-shaped part-331A, pressing part-331B, locking protrusion-331C, line end signal terminal-34, cable-35, shielding reinforcement plate-36, second line clamping part-361. DETAILED DESCRIPTION

[0047] The embodiments of the present application provide a board-end connector and a connector assembly to solve the technical problem in the prior art that the board-end connector and the line-end connector are unstable or easily loosened in harsh environments.

[0048] The technical solution in the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows:

[0049] A square-shaped board-end plastic base is provided on the board-end connector, which is provided on the periphery of the board-end metal shell, and buckle parts are respectively protruded upward on the left and right sides of the board-end plastic base, and a wire-end metal shell covering the wire-end shielding shell is provided on the line-end connector, and locking parts are provided on the left and right sides of the wire-end metal shell. When the board-end connector is plugged in with the wire-end connector, the locking parts of the wire-end metal shell and the buckle parts of the board-end plastic base cooperate with each other to form a locking structure, so that the locking structure has high mechanical strength, which can ensure that the board-end connector and the wire-end connector are firmly plugged in and not loosened. It ensures that the connector maintains good performance in harsh environments such as automobiles.

[0050] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are 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 present invention. However, the present invention 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 present invention, so the present invention is not limited by the specific implementation disclosed below.

[0051] If the front, rear, left, right, top, bottom, inside, outside, front end, rear end, left end, right end, upper part, lower part, left side, right side, longitudinal direction, transverse direction, axial direction, radial direction, front side, back side, etc. are involved in this application, they are all relative concepts. In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features.

[0052] like Figures 1 to 13 As shown, this is an embodiment of the present application:

[0053] like Figures 1 to 10 As shown, a connector assembly 100 includes a board-end connector 200 and a line-end connector 300 that can be plugged into each other, wherein the board-end connector 200 includes: a board-end insulator 21, which is provided with terminal grooves 211 on the left and right sides and a shielding spacer groove 212 between the two terminal grooves 211; a board-end metal shell 22, fixed to the outside of the board-end insulator 21, and a plurality of mounting portions 221 are provided on the periphery of the board-end metal shell 22; a board-end signal terminal 23, installed in the terminal groove 211; a board-end shielding spacer 21, installed in the shielding spacer groove 212; a square-shaped board-end plastic base 25, arranged on the periphery of the board-end metal shell 22, and the left and right sides of the board-end plastic base 25 are respectively provided with buckle portions 251 protruding upwards.

[0054] The line end connector 300 includes: a line end insulator 31, a line end shielding shell 32 installed outside the line end insulator 31, a line end metal shell 33 covering the line end shielding shell 32, a locking portion 331 is provided on the left and right sides of the line end metal shell 33, a line end signal terminal 34 installed in the line end insulator 31, and a cable 35 electrically connected to the line end signal terminal 34; focus on Figure 3 As shown, when the board-end connector 200 is plugged in with the line-end connector 300, the line-end shielding shell 32 is electrically in contact with the board-end shielding spacer 24 to form a mutually independent shielding space, the line-end signal terminal 34 is electrically connected to the board-end signal terminal 23 to transmit signals and / or power, the line-end metal shell 33 is electrically connected to the board-end metal shell 22, and the locking portion 331 of the line-end metal shell 33 and the locking portion 251 of the board-end plastic base 25 cooperate with each other to form a locking structure. The locking structure set in this way has high mechanical strength, which can ensure that the board-end connector and the line-end connector are firmly plugged in and not loose, and ensure that the connector maintains good performance in harsh use environments such as automobiles.

[0055] Preferably, the locking portion 331 includes a U-shaped portion 331A, a pressing portion 331B extending outwardly from the U-shaped portion 331A and then extending downwardly, and a locking protrusion 331C provided on the outer side of the outer side wall of the U-shaped portion 331A. Figure 3 and Figure 4 It can be seen that in the locked state, the locking protrusion 331C and the locking portion 251 form a mutually locking structure; when a pair of external pressing forces X are applied to the pressing portions 331B on both sides, one side of the U-shaped portion 331A is elastically pressed and moves inward, so that the locking protrusion 331C is separated from the locking portion 251, thereby achieving unlocking, and the operation is simple.

[0056] Preferably, plate-shaped fixing parts 252 are respectively provided at the four sides of the board-end plastic base 25, column-shaped reinforcing parts 253 are respectively provided at the four corners, and the mounting part 221 of the board-end metal shell 22 is fixedly connected to the plate-shaped fixing part 252, and the mounting part 221 of the board-end metal shell 22 can be molded on the fixing part 252 of the board-end plastic base 25 by an integral molding method. In this way, a more stable connection between the board-end metal shell 22 and the board-end plastic base 25 can be increased, and the production process can also be simplified.

[0057] Preferably, refer to Fig.11 , 12As shown, the board-end shielding spacer 24 includes a fixed bottom plate 241, two elastic side plates 242 formed by bending upwards on the left and right sides of the fixed bottom plate 241 and forming a symmetrical structure, and a first slot 243 is formed between the two elastic side plates 242. The board-end signal terminal 23 includes a fixed bottom 231, two elastic arms 232 formed by bending upwards on the front and back sides of the fixed bottom 231 and forming a symmetrical structure, and a second slot 233 for accommodating the line-end signal terminal is formed between the two elastic arms 232. It should be noted that the symmetrical structure here can be an axisymmetric structure or a centrally symmetrical structure. By providing a symmetrically structured board-end signal terminal and a board-end shielding spacer, when the line-end connector and the board-end connector are snapped together, there is no need to identify the front or back side of the plug-in, that is, the cable can be snapped together normally whether it is located on the front or back side of the board-end connector, which is convenient for assembly.

[0058] Preferably, Fig.13 As shown, the line end shielding shell 32 includes a frame structure 321 and a shielding cover 322, and a through receiving groove 323 is provided between the frame structure 321 and the shielding cover 322. A spacer portion 324 is provided in the receiving groove 323. The spacer portion 324 is provided with an engaging protrusion 324A which is engaged with the first slot 243 of the board end shielding spacer 24 and protrudes toward the hollow area of ​​the frame structure 321. The spacer portion 324 divides the receiving groove 323 into two left and right areas in the longitudinal direction. In this way, the line end connector has excellent shielding performance and strong anti-interference ability, which greatly improves the electrical performance of the connector assembly.

[0059] Preferably, refer again Figure 2 As shown, first wire clamping parts 325 are respectively provided on both sides of the connection between the spacer part 324 and the shielding cover 322, a shielding reinforcement plate 36 is provided between the wire end shielding shell 32 and the wire end metal shell 33, and two second wire clamping parts 361 are torn and formed on the shielding reinforcement plate 36. The second wire clamping parts 361 cooperate with the first wire clamping parts 325 to stably fix the cable.

[0060] 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.

[0061] The above-mentioned embodiments only express the implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A board-end connector, characterized in that: include: The board end insulator has terminal slots on the left and right sides and a shielding spacer slot between the two terminal slots; A plate end metal shell fixed to the outside of the plate end insulator; The board-side signal terminal is installed in the terminal slot; The board end shielding spacer is installed in the shielding spacer groove; The plate end plastic base in a square frame shape is arranged on the periphery of the plate end metal shell, and buckle parts are respectively protruded upwards on the left and right sides of the plate end plastic base.

2. The board connector according to claim 1, characterized in that: The four sides of the plate end plastic base are respectively provided with plate-shaped fixing parts, and the four corners are respectively provided with columnar reinforcing parts.

3. The board connector according to claim 2, characterized in that: A plurality of mounting parts are arranged on the periphery of the plate end metal shell, and the mounting parts are fixedly connected to the plate-shaped fixing part.

4. The board connector according to claim 1, characterized in that: The plate end shielding spacer comprises a fixed bottom plate, and two elastic side plates formed by bending upwards on the left and right sides of the fixed bottom plate and presenting a symmetrical structure, and a first slot is formed between the two elastic side plates.

5. The board connector according to claim 4, characterized in that: The board-end signal terminal comprises a fixed bottom, and two elastic arms with a symmetrical structure formed by bending upwards at the front and rear sides of the fixed bottom, respectively, and a second slot is formed between the two elastic arms.

6. A connector assembly, characterized in that: A board-end connector according to any one of claims 1 to 5, and a line-end connector plugged and connected to the board-end connector, wherein the line-end connector comprises: Line end insulators; A line terminal shielding shell installed outside the line terminal insulator; A wire end metal shell covering the wire end shielding shell, wherein locking parts are arranged on the left and right sides of the wire end metal shell; A line end signal terminal mounted in the line end insulator; A cable electrically connected to the line end signal terminal; When the board-end connector is plugged into the line-end connector, the line-end shielding shell is electrically in contact with the board-end shielding spacer 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 line-end metal shell is electrically connected to the board-end metal shell, and the locking portion of the line-end metal shell cooperates with the snap-on portion of the board-end plastic base to form a locking structure.

7. The connector assembly according to claim 6, characterized in that: The locking portion includes a U-shaped portion, a pressing portion extending outward from the U-shaped portion and then extending downward, and a locking protrusion provided on the outer side of the outer side wall of the U-shaped portion.

8. The connector assembly according to claim 7, characterized in that: The wire end shielding shell includes a frame-type structure and a shielding cover, wherein a through receiving groove is provided between the frame-type structure and the shielding cover, wherein a spacer portion is provided in the receiving groove, and wherein the spacer portion divides the receiving groove into two left and right areas in a longitudinal direction, and first wire clamping portions are respectively provided on both sides of the connection between the spacer portion and the shielding cover.

9. The connector assembly according to claim 8, characterized in that: The spacer portion is provided with an engaging protrusion protruding toward the hollow area of ​​the frame structure.

10. The connector assembly according to claim 8 or 9, characterized in that: It also includes a shielding reinforcement plate arranged between the wire end shielding shell and the wire end metal shell, and the shielding reinforcement plate is torn and formed with two second wire clamping parts, and the second wire clamping parts cooperate with the first wire clamping parts to fix the cable.

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