Board-to-board connector

Abstract

The board-to-board connector comprises a female end and a male end which are matched with each other, the female end comprises an insulation base, a female end signal terminal, a metal reinforcing piece, a middle island protection piece and a metal reinforcing piece, the metal reinforcing piece comprises a protection frame body and a protection wing, the protection frame body is arranged on a short edge structure of the insulation base, and the protection wing is arranged on the protection frame body. The protection wings are arranged on the two sides of the protection frame body and extend along the long edge structure of the insulation base, an elastic arm is arranged in the middle of the protection frame body, and the elastic arm is formed by bending the outer side of the protection frame body downwards and then bending the outer side of the protection frame body towards the interior of the frame-shaped structure. Compared with the prior art, under the condition that the original protection strength and guiding capacity are ensured, the metal reinforcing piece can be in more reliable contact with the protection support of the male end through the elastic arm, so that the stability of current transmission during power-on is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connectors, in particular to a board-to-board connector. Background Art

[0002] With the rapid development of portable electronic devices, radio frequency connectors (such as board-to-board connectors) are widely used. Board-to-board connectors are used to connect different circuit boards. Board-to-board connectors include plug-in board-to-board male connectors and board-to-board female connectors. The male end and the female end are used to be installed on different circuit boards respectively.

[0003] The board-to-board female connector includes a seat body and a transmission terminal arranged on the seat body. The seat body includes a bottom plate and a center island and a surrounding wall respectively arranged on the bottom plate. The surrounding wall is arranged along the edge of the bottom plate. The surrounding wall has a long side structure and a short side structure. The center island is located inside the surrounding wall. An accommodating cavity for at least partially accommodating the board-to-board male connector is formed between the center island and the surrounding wall. In order to protect the seat body, a female metal reinforcement is generally arranged at the end of the seat body. The female metal reinforcement includes a protection frame body arranged on the short side structure and a protection wing arranged on the long side structure. The contact between the protection frame body and the protection bracket of the male connector is usually rigid contact. This rigid contact method cannot ensure sufficient contact, resulting in unstable current when power is turned on. Utility Model Content

[0004] An embodiment of the present application provides a board-to-board connector, which enables the metal reinforcement to achieve more reliable contact with the protective bracket of the male end through the elastic arm while ensuring the original protection strength and guiding ability, so as to improve the stability of current transmission when power is turned on.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A board-to-board connector, used for combining with a docking circuit board, comprises a female end and a male end that cooperate with each other, wherein the female end comprises an insulating base, a female end signal terminal, a metal reinforcement, and a middle island protection sheet, the insulating base comprises a pair of relatively arranged long side structures, a pair of relatively arranged short side structures and a middle island structure, the middle island structure is located in a frame structure surrounded by the long side structure and the short side structure, a terminal groove is provided between the middle island structure and the long side structure, the female end signal terminal is fixed in the terminal groove,

[0007] The island protection sheet comprises a protection portion, a fixing portion, and an elastic contact portion, wherein the protection portion covers the end of the island structure, the fixing portion is connected to the bottom plate of the frame structure to fix the island protection sheet on the insulating base, and the elastic contact portion is electrically connected to the protection bracket of the male end;

[0008] The metal reinforcement comprises a protective frame body and protective wings, wherein the protective frame body is arranged on the short side structure, the protective wings are arranged on both sides of the protective frame body and extend along the long side structure, and an elastic arm is arranged at the middle position on the protective frame body, and the elastic arm is formed by bending downward from the outer side of the protective frame body and then bending toward the frame structure.

[0009] Furthermore, the elastic arm is arranged below the protection frame body and is U-shaped as a whole, including a connecting portion, a bending portion, and a contact portion which are arranged in sequence.

[0010] Furthermore, a contact protrusion is provided on the contact portion for electrically connecting to the protective bracket of the male end.

[0011] Furthermore, a first notch is provided on the inner side of the protection frame body, and the first notch is used to accommodate the tail end of the contact portion.

[0012] Furthermore, fixing feet are respectively extended downwards on both sides of the elastic arm on the protection frame body, and spikes are protruded outwards from the outer sides of the fixing feet.

[0013] Furthermore, a second notch is provided on the inner side of the protection wing, and the second notch is used to accommodate the elastic contact portion on the island protection sheet.

[0014] Furthermore, the protective part includes a protective cap, a reinforcement plate connected to the protective cap, and a fixing column arranged at the free end of the reinforcement plate, the protective cap is covered on the end of the island structure, the reinforcement plate cover is arranged on the upper surface of the island structure, and the fixing column is embedded in the island structure.

[0015] Furthermore, the elastic contact portion is arranged between the fixing portion and the protection portion, the elastic contact portion is provided with a pair of symmetrical elastic clamping arms, and the fixing portion is provided with a pair of symmetrical plugging plates.

[0016] The beneficial effect of the utility model lies in that a metal reinforcement member includes a protection frame body and protection wings, the protection frame body is arranged on the short side structure, the protection wings are arranged on both sides of the protection frame body and extend along the long side structure, and an elastic arm is arranged in the middle position of the protection frame body, and the elastic arm is formed by bending downward from the outer side of the protection frame body and then bending inwardly toward the frame structure, so that the metal reinforcement member can achieve more reliable contact with the protection bracket of the male end through the elastic arm while ensuring the original protection strength and guiding ability, so as to improve the stability of current transmission when power is turned on. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model;

[0018] Figure 2 It is a cross-sectional schematic diagram of an embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the female end in the embodiment of the utility model;

[0020] Figure 4 It is an exploded view of the female end in the embodiment of the utility model;

[0021] Figure 5 This is one of the structural schematic diagrams of the metal reinforcement in the embodiment of the utility model;

[0022] Figure 6 The second structural diagram of the metal reinforcement in the embodiment of the utility model

[0023] Figure 7 It is a schematic structural diagram of the island protection sheet in the embodiment of the utility model.

[0024] The reference numerals in the drawings of the specification include:

[0025] Board-to-board connector-100, female end-200, insulating base-21, long side structure-211, short side structure-212, island structure-213, frame structure-214, terminal slot-215, female end signal terminal-22, metal reinforcement-23, protective frame body-231, first notch-231A, protective wing-232, second notch-232A, elastic arm-233, connecting part-23 3A, bending portion-233B, contact portion-233C, contact protrusion-233D, island protection sheet-24, protection portion-241, protection cap-241A, reinforcement plate-241B, fixing column-241C, fixing portion-242, plug-in plate-242A, elastic contact portion-243, elastic clamp arm-243A, fixing foot-234, spike portion-235, male end-300, protection bracket-31. DETAILED DESCRIPTION

[0026] The embodiment of the present application provides a board-to-board connector to solve the technical problem in the prior art that the rigid contact between the metal reinforcement and the protective bracket of the male end cannot ensure sufficient contact, resulting in unstable current when power is turned on.

[0027] The technical solution in the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows:

[0028] A metal reinforcement member includes a protection frame body and protection wings, wherein the protection frame body is arranged on the short side structure, the protection wings are arranged on both sides of the protection frame body and extend along the long side structure, and an elastic arm is arranged in the middle position of the protection frame body, and the elastic arm is formed by bending downward from the outer side of the protection frame body and then bending into the frame structure. In this way, the metal reinforcement member can achieve more reliable contact with the protection bracket of the male end through the elastic arm while ensuring the original protection strength and guiding ability, so as to improve the stability of current transmission when power is turned on.

[0029] 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.

[0030] It should be noted that any directional indications in this application, such as front, back, left, right, up, down, inside, outside, front end, back end, left end, right end, upper part, lower part, left side, right side, longitudinal, transverse, axial, radial, front side, back side, etc., are all relative concepts.

[0031] like Figures 1 to 7 As shown, this is an embodiment of the present application:

[0032] A board-to-board connector 100 is used to be combined with a docking circuit board, including a female end 200 and a male end 300 that cooperate with each other, wherein the female end 200 includes an insulating base 21, a female end signal terminal 22, a metal reinforcement 23, and a center island protection sheet 24, the insulating base 21 includes a pair of oppositely arranged long side structures 211, a pair of oppositely arranged short side structures 212 and a center island structure 213, the center island structure 213 is located in a frame structure 214 surrounded by the long side structure 211 and the short side structure 212, a terminal groove 215 is provided between the center island structure 213 and the long side structure 211, and the female end signal terminal 22 is fixed in the terminal groove 215,

[0033] The island protection sheet 24 includes a protection portion 241, a fixing portion 242, and an elastic contact portion 243. The protection portion 241 covers the end of the island structure 213. The fixing portion 242 is connected to the bottom plate of the frame structure 214 to fix the island protection sheet 24 on the insulating base 21. The elastic contact portion 243 is electrically connected to the protection bracket 31 of the male end 300.

[0034] The metal reinforcement 23 includes a protection frame body 231 and protection wings 232. The protection frame body 231 is arranged on the short side structure 212, and the protection wings 232 are arranged on both sides of the protection frame body 231 and extend along the long side structure 211. An elastic arm 233 is arranged in the middle position of the protection frame body 231. The elastic arm 233 is formed by bending downward from the outer side of the protection frame body 231 and then bending into the frame structure 214. In this way, the metal reinforcement can ensure the original protection strength and guiding ability, and achieve more reliable contact between the metal reinforcement and the male end protection bracket through the elastic arm, so as to improve the stability of current transmission when power is turned on.

[0035] Further, refer to Figure 5 , Figure 6 As shown, the elastic arm 233 is arranged below the protective frame body 231, and is in a U-shape as a whole, including a connecting portion 233A, a bending portion 233B, and a contact portion 233C arranged in sequence. The contact portion 233C is provided with a contact protrusion 233D for electrically connecting with the protective frame 31 of the male end 300. By setting the elastic arm 233 as a whole in a U-shape and providing the contact protrusion 233D on the contact portion 233C, the reliability and stability of the contact between the female end and the male end can be further improved.

[0036] Furthermore, a first notch 231A is provided on the inner side of the protection frame body 231, and the first notch 231A is used to accommodate the tail end of the contact portion 233C. Fixed feet 234 are respectively extended downward on the protection frame body 231 at the positions on both sides of the elastic arm 233, and a spike portion 235 protrudes outward from the outer side of the fixed foot 234. A second notch 232A is provided on the inner side of the protection wing 232, and the second notch 232A is used to accommodate the elastic contact portion 243 on the island protection sheet 24. It can be understood that the tail end of the contact portion 233C is arranged in the first notch 231A, so that space for elastic deformation of the contact portion 233C can be provided. Accommodating the elastic contact portion 243 in the second notch 232A can effectively protect the elastic contact portion 243 and prevent it from being crushed and causing failure when the male and female ends are plugged together.

[0037] Further, refer to Figure 7As shown, the protective part 241 includes a protective cap 241A, a reinforcing plate 241B connected to the protective cap 241A, and a fixing column 241C arranged at the free end of the reinforcing plate 241B. The protective cap 241A is coated on the end of the island structure 213, the reinforcing plate 241B is covered on the upper surface of the island structure 213, and the fixing column 241C is embedded in the island structure 213. In this way, the stability of the connection between the protective part and the island structure can be strengthened, and the rollover or warping after multiple plugging and unplugging of the male end and the female end can be prevented, thereby improving the reliability of the connection when the male end and the female end are plugged in. More specifically, the elastic contact part 243 is arranged between the fixing part 242 and the protective part 241, and a pair of symmetrical elastic clamping arms 243A are arranged on the elastic contact part 243, and a pair of symmetrical plugging plates 242A are arranged on the fixing part 242.

[0038] 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.

[0039] 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 board-to-board connector for connecting to a docking circuit board, characterized in that: It includes a female end and a male end that cooperate with each other, wherein the female end includes an insulating base, a female end signal terminal, a metal reinforcement, and a middle island protection sheet, the insulating base includes a pair of relatively arranged long side structures, a pair of relatively arranged short side structures and a middle island structure, the middle island structure is located in a frame structure surrounded by the long side structure and the short side structure, a terminal groove is provided between the middle island structure and the long side structure, and the female end signal terminal is fixed in the terminal groove, The island protection sheet comprises a protection portion, a fixing portion, and an elastic contact portion, wherein the protection portion covers the end of the island structure, the fixing portion is connected to the bottom plate of the frame structure to fix the island protection sheet on the insulating base, and the elastic contact portion is electrically connected to the protection bracket of the male end; The metal reinforcement comprises a protective frame body and protective wings, wherein the protective frame body is arranged on the short side structure, the protective wings are arranged on both sides of the protective frame body and extend along the long side structure, and an elastic arm is arranged at the middle position on the protective frame body, and the elastic arm is formed by bending downward from the outer side of the protective frame body and then bending toward the frame structure.

2. The board-to-board connector according to claim 1, wherein: The elastic arm is arranged below the protection frame body and is U-shaped as a whole, comprising a connecting portion, a bending portion, and a contact portion which are arranged in sequence.

3. The board-to-board connector according to claim 2, characterized in that: The contact portion is provided with a contact protrusion for electrically connecting with the protective bracket of the male end.

4. The board-to-board connector according to claim 3, characterized in that: A first notch is disposed on the inner side of the protection frame body, and the first notch is used to accommodate the tail end of the contact portion.

5. The board-to-board connector according to claim 4, characterized in that: The protection frame body is provided with fixing feet extending downwards at both sides of the elastic arm, and the outer sides of the fixing feet are provided with spike parts protruding outwards.

6. The board-to-board connector according to claim 5, characterized in that: A second notch is disposed on the inner side of the protection wing, and the second notch is used to accommodate the elastic contact portion on the island protection sheet.

7. The board-to-board connector according to claim 6, characterized in that: The protective part includes a protective cap, a reinforcement plate connected to the protective cap, and a fixing column arranged at the free end of the reinforcement plate. The protective cap is covered on the end of the island structure, the reinforcement plate is covered on the upper surface of the island structure, and the fixing column is embedded in the island structure.

8. The board-to-board connector according to claim 7, characterized in that: The elastic contact portion is arranged between the fixing portion and the protection portion, a pair of symmetrical elastic clamping arms are arranged on the elastic contact portion, and a pair of symmetrical plugging plates are arranged on the fixing portion.

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