Board-to-board connector

Abstract

The utility model discloses a board-to-board connector. The board-to-board connector comprises an insulating seat, a signal terminal, an end reinforcing piece and a protection and terminal integrated piece, the insulating seat comprises a bottom plate, a central island part protruding upwards from the bottom plate and a frame structure surrounding the central island part, the frame structure and the central island part are arranged at an interval to form a slot, and the frame structure comprises a pair of oppositely arranged long edges and a pair of oppositely arranged short edges; the signal terminal is fixed in the slot; the end reinforcing pieces are arranged at the two ends of the insulating seat and cover the short edges and part of the long edges; the protection and terminal integrated pieces are arranged at the two ends of the central island part and comprise protection parts and terminal parts, the protection parts are used for protecting the central island part, and the terminal parts are arranged on the two sides of the central island part and used as power terminals. According to the utility model, the protection part and the power supply terminal are designed to be integrated to form a protection and terminal integrated piece, so that the metal area of the power supply terminal is increased, the current flow path is reduced, the flow effect is better, the temperature rise is lower, large current can be conducted, and the strength is higher.

Description

Technical Field

[0001] This application relates to the field of connector technology, and more particularly to a board-to-board connector. Background Technology

[0002] Existing board-to-board connectors, due to structural limitations, cannot withstand high current surges. With the increasing market demand for high-current applications, especially the rapid development of fast charging, existing board-to-board connectors are finding it increasingly difficult to meet the requirements of high current. Utility Model Content

[0003] The purpose of this application is to provide a board-to-board connector to overcome the shortcomings of the prior art.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] A board-to-board connector includes an insulating base, signal terminals, end reinforcements, and a protective and terminal integrated component;

[0006] The insulating base includes a base plate, a central island portion protruding upward from the base plate, and a frame structure surrounding the central island portion. The frame structure and the central island portion are spaced apart to form a slot. The frame structure includes a pair of oppositely arranged long sides and a pair of oppositely arranged short sides.

[0007] The signal terminal is fixed in the slot;

[0008] The end reinforcements are located at both ends of the insulating base and cover the short side and part of the long side;

[0009] The integrated protective and terminal unit is located at both ends of the central island portion, and includes a protective portion and a terminal portion. The protective portion is used to protect the central island portion, and the terminal portion is located on both sides of the central island portion and is used as a power terminal.

[0010] In some embodiments, the protective portion covers the end of the central island portion; the terminal portion includes a first fixing portion extending from the protective portion to both sides and embedded in the insulating base, and an elastic contact portion bending from the first fixing portion toward the slot.

[0011] In some embodiments, the first fixing portion includes an extension portion, a first bending portion, and a second bending portion;

[0012] The extension extends outward from the protective portion in a direction parallel to the base plate;

[0013] The first bent portion bends from the extension portion toward the long side and extends to conform to the inner wall of the long side;

[0014] The second bend is formed by bending the first bend in a direction opposite to the bending direction of the first bend, and is embedded in the long side.

[0015] In some embodiments, the elastic contact portion is located at the middle position of the extension portion along the length direction of the insulating seat, and the two sides of the extension portion along the length direction of the insulating seat are connected to the protective portion.

[0016] In some embodiments, the inner surface of the first bend is provided with a protrusion that protrudes into the slot to lock the mating connector.

[0017] In some embodiments, the first fixing part further includes:

[0018] The welding section extends from the end of the second bent section in a direction parallel to the base plate and is used for welding to an external circuit board.

[0019] In some embodiments, the integrated protection and terminal assembly further includes:

[0020] The clamping part includes a plate extending from the protective part along the base plate toward the short side, and clamping arms provided on both sides of the plate part along the width direction of the insulating seat.

[0021] In some embodiments, the end reinforcement includes a short side reinforcement and a long side reinforcement, the short side reinforcement covering the short side and the long side reinforcement covering a portion of the long side; both the short side reinforcement and the long side reinforcement have an inclined downward extending eave on their inner sides, and the eave of the long side reinforcement has a notch for avoiding the clamping arm.

[0022] In some embodiments, the end reinforcement further includes:

[0023] The elastic arm is formed by bending downward from the outside of the short side reinforcement, then bending inward from the inside of the short side, and then bending upward.

[0024] In some embodiments, the central island portion and the protective portion are provided with hollow areas on both sides along the width direction of the insulating base, and the hollow areas are used to avoid the elastic contact portion.

[0025] The advantages of this application are:

[0026] The protective structure (protective unit) for the central island is integrated with the power terminals, forming a single protective and terminal unit. This integrated structure increases the metal area of ​​the power terminals. By combining the two power terminals previously located on either side of the central island with the protective unit, the previously dispersed power terminals are now integrated into a single power supply unit. This reduces the current flow path, improves current carrying capacity, lowers temperature rise, and allows for higher current carrying capacity. Furthermore, the integrated design offers greater strength and reliability compared to the previous dispersed structure. Attached Figure Description

[0027] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0028] Figure 1 This is a schematic diagram of the board-to-board connector (female connector) and mating connector (male connector) insertion structure in an embodiment of this application;

[0029] Figure 2 This is a schematic diagram showing the separation of the board-to-board connector (female connector) and the mating connector (male connector) in an embodiment of this application.

[0030] Figure 3 for Figure 2 A structural schematic diagram from another perspective of the structure shown;

[0031] Figure 4 This is a schematic diagram of the board-to-board connector structure in an embodiment of this application;

[0032] Figure 5 This is an exploded view of the board-to-board connector in an embodiment of this application;

[0033] Figure 6 This is a schematic diagram of the insulating base in an embodiment of this application;

[0034] Figure 7 This is a schematic diagram of the integrated protection and terminal component in the embodiments of this application;

[0035] Figure 8 This is a schematic diagram of the end reinforcement in an embodiment of this application;

[0036] Figure 9 for Figure 8 A schematic diagram of the structure from another perspective.

[0037] The attached diagram lists the components represented by each number as follows:

[0038] 10. Board-to-board connector; 11. Slot;

[0039] 100. Insulating base; 110. Base plate; 120. Central island section; 130. Frame structure; 131. Long side; 132. Short side;

[0040] 200. Signal terminal;

[0041] 300. End reinforcement; 310. Short side reinforcement; 311. First eaves; 321. Second eaves; 3211. Notch; 320. Long side reinforcement; 330. Flexible arm;

[0042] 400. Integrated protective and terminal assembly; 410. Protective part; 420. Terminal part; 421. First fixing part; 4211. Extension part; 4212. First bending part; 42121. Protrusion; 4213. Second bending part; 4214. Welding part; 422. Elastic contact part; 430. Clamping part; 431. Plate part; 432. Clamping arm;

[0043] 20. Connector; 21. Flange. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0045] This application provides a board-to-board connector. In this embodiment, the board-to-board connector is a female connector. In use, as... Figures 1 to 3 As shown, the board-to-board connector 10 (female connector) of this application is plugged into the mating connector 20 (male connector) to realize signal transmission.

[0046] refer to Figure 5 As shown, in this embodiment of the application, the board-to-board connector 10 includes an insulating base 100, a signal terminal 200, an end reinforcement 300, and a protective and terminal integrated component 400.

[0047] like Figure 4 As shown, the signal terminal 200, end reinforcement 300, and integrated protection and terminal component 400 are all mounted on the insulating base 100. Figure 6As shown, the insulating base 100 includes a base plate 110, a central island portion 120, and a frame structure 130. The central island portion 120 is approximately located at the center of the base plate 110 and protrudes upward from the center of the base plate 110. In this embodiment, "upward" refers to the direction along the Z-direction from the base plate 110 of the insulating base 100 to the frame structure 130 of the insulating base 100, which is the positive direction of the Z-direction in the figures; "downward" refers to the direction along the Z-direction from the frame structure 130 of the insulating base 100 to the base plate 110 of the insulating base 100, which is the opposite direction of the Z-direction in the figures. The frame structure 130 is arranged around the central island portion 120.

[0048] like Figure 6 As shown, slots 11 are provided at intervals between the border structure 130 and the central island portion 120, as... Figure 5 As shown, the signal terminal 200 is fixed in the slot 11. Combined with... Figure 2 and Figure 3 As shown, when the mating connector 20 is inserted into the board-to-board connector 10 of the present application embodiment, the flange 21 on the mating connector 20 is inserted into the slot 11 of the insulating seat 100 of the board-to-board connector 10 of the present application embodiment. The slot 11 is provided with terminals. The terminals on the flange 21 of the mating connector 20 contact the terminals in the slot 11 of the board-to-board connector 10 to realize signal transmission.

[0049] Continue to refer to Figure 6 The border structure 130 includes a pair of oppositely arranged long sides 131 and a pair of oppositely arranged short sides 132. The pair of long sides 131 and the pair of short sides 132 generally enclose a rectangular border structure 130.

[0050] like Figure 4 As shown, end reinforcements 300 are disposed at both ends of the insulating base 100. The end reinforcements 300 cover the short side 132 and part of the long side 131. Figure 4 As shown, the end reinforcement 300 is roughly C-shaped and covers the end of the insulating base 100. Therefore, it does not cover the entire long side 131, but only the end portion of the long side 131. Space needs to be left in the middle of the long side 131 for installing terminals. The end reinforcement 300 can protect the end of the insulating base 100 to avoid wear during the mating process. It can also be used to secure the mating connector 20.

[0051] like Figure 5 As shown, the integrated protective and terminal unit 400 is a single metal component. (As indicated...) Figure 4 As shown, both ends of the central island 120 are equipped with integrated protective and terminal components 400. Figure 7As shown, the integrated protective and terminal assembly 400 includes a protective portion 410 and a terminal portion 420. The protective portion 410 protects the central island portion 120 of the insulating base. The terminal portions 420 are provided on both sides of the central island portion 120, that is, the central island portion 120 has terminal portions 420 on both sides along the width direction (Y direction in the figure). The terminal portions 420 are used as power terminals for the board-to-board connector 10.

[0052] In this embodiment, the protective structure (protective part 410) for protecting the central island 120 and the power terminals (terminal part 420) are designed as a single unit, forming a protective and terminal integrated component 400. This integrated structure increases the metal area of ​​the power terminals. By integrating the two power terminals, previously dispersed on both sides of the central island 120, with the protective part 410, the dispersed power terminals are integrated into a single power supply unit. This reduces the current flow path, improves current flow efficiency, lowers temperature rise, and allows for the carrying of larger currents. Furthermore, the integrated design offers higher strength and reliability compared to the previous dispersed structure.

[0053] like Figure 4 As shown, the protective portion 410 of the integrated protective and terminal unit 400 covers the end of the central island portion 120. The protective portion 410 is generally a cover-shaped structure that covers the central island portion 120. Figure 7 As shown, the terminal portion 420 of the integrated protective and terminal component 400 includes a first fixing portion 421 and a resilient contact portion 422. The first fixing portion 421 extends from the protective portion 410 to both sides and is embedded in the insulating base 100 for fixation. Figure 4 and Figure 7 As shown, the elastic contact portion 422 is formed by bending the first fixing portion 421 towards the slot 11. The root of the elastic contact portion 422 is connected to the first fixing portion 421, and the end of the elastic contact portion 422 is bent towards the slot 11, thereby enabling it to contact the mating connector 20 inserted into the slot 11. The elastic contact portion 422 serves as the contact area between the terminal portion 420 and the mating connector 20.

[0054] like Figure 6 As shown, the central island portion 120 has hollowed-out areas 120a on both sides along the width direction (Y direction) of the insulating base 100, such as... Figure 7 As shown, the protective part 410 also has hollow areas 410a on both sides along the width direction (Y direction) of the insulating base 100. For example... Figure 4 As shown, the hollowed-out areas (120a, 410a) are used to avoid the elastic contact portion 422. For example... Figure 4As shown, after the integrated protective and terminal component 400 is installed onto the insulating base 100, the hollow area 410a on the protective portion 410 of the integrated protective and terminal component 400 corresponds to the hollow area 120a on the central island portion 120 of the insulating base 100. The two hollow areas (120a, 410a) overlap, thereby avoiding the elastic contact portion 422. By setting the hollow areas (120a, 410a) to avoid the elastic contact portion 422, the elastic contact portion 422 has space for elastic deformation. When the mating connector 20 is inserted, the elastic contact portion 422 is pressed into the hollow areas (120a, 410a), so that the elastic contact portion 422 can make tight contact with the mating connection.

[0055] In one embodiment, such as Figure 7 As shown, the first fixing part 421 includes an extension part 4211, a first bending part 4212, and a second bending part 4213. The extension part 4211 extends outward from the edge of the protective part 410 in a direction parallel to the base plate 110. The extension part 4211 is embedded in the base plate 110, thereby fixing it to the base plate 110. During molding, the insulating base 100 is formed by injection molding. After the protective and terminal integrated piece 400 and the signal terminal 200 are fixed, the insulating base 100 is injection molded onto the protective and terminal integrated piece 400 and the signal terminal 200, so that the protective and terminal integrated piece 400 and the signal terminal 200 can be embedded in the insulating base 100.

[0056] Combination Figure 4 and Figure 7 The first bent portion 4212 of the first fixing portion 421 bends from the extension portion 4211 of the first fixing portion 421 toward the long side 131 of the insulating base 100, and the first bent portion 4212 extends along the inner wall of the long side 131. Figure 7 As shown, the first bend 4212 bends upward and extends along the Z direction. The inner wall of the first bend 4212 protrudes from the inner wall of the long side 131, thus exposing the inner wall of the first bend 4212 in the slot 11, increasing the contact area with the mating connector 20. And as... Figure 7 As shown, the first bent portion 4212 and the elastic contact portion 422 are opposite each other and can clamp the mating connector 20 together.

[0057] Continue to refer to Figure 7 The second bending portion 4213 is bent from the first bending portion 4212 in the opposite direction to the bending direction of the first bending portion 4212, and the second bending portion 4213 is embedded in the long side 131 for further fixation.

[0058] Furthermore, such as Figure 7As shown, the first fixing part 421 also includes a welding part 4214. The welding part 4214 extends from the end of the second bending part 4213 in a direction parallel to the base plate 110. The welding part 4214 is used for welding to an external circuit board, thereby electrically connecting to corresponding conductive contacts on the circuit board.

[0059] like Figure 4 As shown, the second bend 4213 enters the long side 131 from the top and then exits from the bottom of the base plate 110, thereby embedding the entire second bend 4213 into the insulating base 100 and fixing the protective and terminal integrated component 400 onto the insulating base 100. After exiting from the bottom of the base plate 110, the second bend 4213 bends outward to form the welded part 4214.

[0060] like Figure 7 As shown, the inner surface of the first bend 4212 is provided with a protrusion 42121 that protrudes into the slot 11 to secure the mating connector 20. Figure 7 As shown, the convex 42121 protrudes to the opposite side, and when the mating connector 20 is inserted into the slot 11, the convex 42121 can hold the mating connector 20 more tightly.

[0061] like Figure 7 As shown, the elastic contact portion 422 is located at the middle position of the extension portion 4211 along the length direction (X direction) of the insulating base 100, and the two sides of the extension portion 4211 along the length direction (X direction) of the insulating base 100 are connected to the protective portion 410. Figure 7 The elastic contact portion 422 is located in the middle of the extension portion 4211. The central island portion 120 and the protective portion 410 are hollowed out at positions corresponding to the elastic contact portion 422 to avoid it. In fact, during the molding of the integrated protective and terminal component 400, the elastic contact portion 422 is formed by bending a metal sheet from the hollowed-out area 410a of the protective portion 410. Bending the metal sheet from the hollowed-out area 410a of the protective portion 410 not only forms the elastic contact portion 422 but also simultaneously forms a hollowed-out area 410a on the protective portion 410 to avoid it. The extension portion 4211 is connected to the protective portion 410 at both sides along the length direction (X direction) of the insulating base 100, thus making the extension portion 4211 and the protective portion 410 integrally molded as a single unit, which can be formed from the same metal sheet.

[0062] In the embodiments of this application, such as Figure 7 As shown, the integrated protective and terminal assembly 400 also includes a clamping portion 430. The clamping portion 430 includes a plate portion 431 and a clamping arm 432. The plate portion 431 extends from the protective portion 410 along the base plate 110 towards the short side 132, and is combined with... Figure 4 and Figure 7As shown, the plate portion 431 can also be described as extending from the protective portion 410 along the X direction toward the short side 132 close to the protective portion 410. Clamping arms 432 are provided on both sides of the plate portion 431 along the width direction (Y direction) of the insulating base 100. The clamping arms 432 are formed by bending upwards along the Z direction. Providing clamping arms 432 on both sides of the plate portion 431 allows for further clamping of the mating connector 20.

[0063] In this embodiment, the integrated protective and terminal component 400 is a single metal part, formed integrally through processes such as metal bending, stamping, and drawing.

[0064] like Figure 8 As shown, the end reinforcement 300 includes a short-side reinforcement 310 and a long-side reinforcement 320. Figure 8 As shown, there is one short-side reinforcing part 310 and two long-side reinforcing parts 320. The two long-side reinforcing parts 320 are connected to the two ends of the short-side reinforcing part 310, forming a roughly C-shaped structure. Figure 4 and Figure 8 The short-side reinforcement 310 covers the short side 132 of the insulating base 100, and the long-side reinforcement 320 covers a portion of the long side 131 of the insulating base 100. The long-side reinforcement 320 only covers the end of the long side 131, not the entire long side 131. Figure 8 As shown, both the short-side reinforcing portion 310 and the long-side reinforcing portion 320 have downwardly extending eaves on their inner sides, namely a first eave 311 and a second eave 321, respectively. A notch 3211 is provided on the second eave 321 of the long-side reinforcing portion 320. (As shown...) Figure 4 As shown, notch 3211 is used to avoid clamping arm 432. The notch 3211 is provided to avoid clamping arm 432 of the protective terminal integrated component 400. This ensures that clamping arm 432 has deformation space to clamp the mating connector 20, and also ensures that the eaves extend downward with sufficient length to better protect and reinforce the frame structure 130 (long side 131 and short side 132) of the insulating base 100, and to prevent the frame structure 130 from being worn.

[0065] In one embodiment, such as Figure 8 As shown, the end reinforcement 300 also includes an elastic arm 330. Combined with... Figure 8 and Figure 9 As shown, the elastic arm 330 is formed by bending downward from the outside of the short side reinforcement 310, then bending inward to the inside of the short side 132, and then bending upward. This design not only allows the elastic arm 330 to press firmly against the mating connector 20, but also maintains the original strength of the end reinforcement 300 without altering its original structure, since the elastic arm 330 is formed by bending downward from the outside of the short side reinforcement 310.

[0066] The technical features in the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0067] The embodiments described above merely illustrate the implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A board-to-board connector, characterized in that, Includes insulating base, signal terminals, end reinforcement, and integrated protection and terminal assembly; The insulating base includes a base plate, a central island portion protruding upward from the base plate, and a frame structure surrounding the central island portion. The frame structure and the central island portion are spaced apart to form a slot. The frame structure includes a pair of oppositely arranged long sides and a pair of oppositely arranged short sides. The signal terminal is fixed in the slot; The end reinforcements are located at both ends of the insulating base and cover the short side and part of the long side; The integrated protective and terminal unit is located at both ends of the central island portion, and includes a protective portion and a terminal portion. The protective portion is used to protect the central island portion, and the terminal portion is located on both sides of the central island portion and is used as a power terminal.

2. The board-to-board connector according to claim 1, characterized in that, The protective portion covers the end of the central island portion; the terminal portion includes a first fixing portion extending from the protective portion to both sides and embedded in the insulating base, and an elastic contact portion bending from the first fixing portion into the slot.

3. The board-to-board connector according to claim 2, characterized in that, The first fixing part includes an extension, a first bending part, and a second bending part; The extension extends outward from the protective portion in a direction parallel to the base plate; The first bent portion bends from the extension portion toward the long side and extends to conform to the inner wall of the long side; The second bend is formed by bending the first bend in a direction opposite to the bending direction of the first bend, and is embedded in the long side.

4. The board-to-board connector according to claim 3, characterized in that, The elastic contact portion is located at the middle position of the extension portion along the length direction of the insulating base, and the two sides of the extension portion along the length direction of the insulating base are connected to the protective portion.

5. The board-to-board connector according to claim 3, characterized in that, The inner surface of the first bend is provided with a protrusion that protrudes into the slot to lock the mating connector.

6. The board-to-board connector according to claim 3, characterized in that, The first fixing part further includes: The welding section extends from the end of the second bent section in a direction parallel to the base plate and is used for welding to an external circuit board.

7. The board-to-board connector according to claim 1, characterized in that, The integrated protective and terminal assembly also includes: The clamping part includes a plate extending from the protective part along the base plate toward the short side, and clamping arms provided on both sides of the plate part along the width direction of the insulating seat.

8. The board-to-board connector according to claim 7, characterized in that, The end reinforcement includes a short side reinforcement and a long side reinforcement. The short side reinforcement covers the short side, and the long side reinforcement covers part of the long side. The inner sides of both the short side reinforcement and the long side reinforcement are provided with inclined downward extending eaves. The eaves of the long side reinforcement are provided with a notch for avoiding the clamping arm.

9. The board-to-board connector according to claim 8, characterized in that, The end reinforcement also includes: The elastic arm is formed by bending downward from the outside of the short side reinforcement, then bending inward from the inside of the short side, and then bending upward.

10. The board-to-board connector according to claim 2, characterized in that, The central island portion and the protective portion are provided with hollow areas on both sides along the width direction of the insulating base, and the hollow areas are used to avoid the elastic contact portion.

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