Female seat connector and board-to-board connector

Abstract

The utility model relates to the technical field of connectors, and discloses a female seat connector and a board-to-board connector. The female seat connector comprises a shell and two terminal assemblies. The shell is provided with a connecting groove extending in the first direction, and a middle island is arranged in the middle of the connecting groove. The two terminal assemblies are installed at the two ends of the connecting groove respectively, each terminal assembly comprises a metal cover and a power supply terminal, the metal cover is provided with a protection part and a terminal part, and the protection part covers the end part of the middle island; the terminal part comprises a plurality of first contact points; the power supply terminal is provided with two elastic arms at an interval along a second direction, and the opposite side walls of the two elastic arms are provided with second contact points; the metal cover is provided with an insertion groove, the insertion groove is located in the side, away from the middle island, of the protection part, the first contact point and the second contact point are located in the insertion groove, welding terminal parts are arranged at the ends, away from an opening of the insertion groove, of the metal cover and the power supply terminal, and the welding terminal parts are used for being connected to a bonding pad of a circuit board in a welded mode.

Description

Technical Field

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

[0002] As an indispensable part of electronic products, board-to-board connectors have fast and stable transmission functions and the characteristics of low loss and high fidelity, playing the role of a bridge of communication in electronic circuits. The multifunctional modules and high-speed development of smart phones and wearable devices have promoted the development of board-to-board connectors.

[0003] In the prior art, a board-to-board connector includes a male connector and a female connector. However, since the female connector uses a plastic shell, when the male connector is plugged into the female connector multiple times, the plastic shell and the center island structure of the female connector are easily damaged, resulting in poor reliability of the female connector.

[0004] Based on this, there is an urgent need for a female connector and a board-to-board connector to solve the above-mentioned problems. Utility Model Content

[0005] Based on the above, the purpose of the utility model is to provide a female connector and a board-to-board connector that are not easily damaged by the connecting groove and the plastic at both ends of the center island, thereby ensuring the reliable stability of the function and improving the overall ability to pass large currents.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] On the one hand, a female connector is provided, comprising:

[0008] A shell, wherein the shell is provided with a connecting groove extending along a first direction, and a center island is provided in the middle of the connecting groove;

[0009] Two terminal assemblies are respectively installed at the two ends of the connection groove, the terminal assembly includes a metal cover and a power terminal, the metal cover is provided with a protective part and a terminal part, the protective part is provided at the end of the middle island; the terminal part includes a plurality of first contact points; the power terminal is provided with two elastic arms spaced apart along the second direction, and the opposite side walls of the two elastic arms are provided with second contact points;

[0010] The metal cover is provided with a plug-in slot, which is located on the side of the protective part away from the center island, the first contact point and the second contact point are both located in the plug-in slot, and the metal cover and the power terminal are both provided with a welding terminal portion at one end away from the plug-in slot opening, and the welding terminal portion is used for welding the pad connected to the circuit board.

[0011] As a preferred technical solution for a female connector, the power terminal is U-shaped, and the two side walls of the plug-in slot along the second direction are provided with a first avoidance hole, the power terminal is sleeved on the outer wall of the metal cover, and the second contact point is penetrated through the first avoidance hole and extends into the plug-in slot.

[0012] As a preferred technical solution for a female connector, the power terminal also includes a connecting arm, through which the two elastic arms are connected, the connecting arm is provided with a third contact point, and the side wall of the plug-in slot facing away from the protective part is provided with a second avoidance hole, the power terminal is sleeved on the outer wall of the metal cover, and the third contact point is penetrated through the second avoidance hole and extends into the plug-in slot.

[0013] As a preferred technical solution of a female connector, the first contact points are arranged on the opposite side walls of the plug-in slot along the second direction; and / or,

[0014] The first contact point is arranged on a side wall of the insertion slot facing away from the protection portion.

[0015] As a preferred technical solution for a female connector, a third avoidance hole is provided at the bottom of the plug-in slot, and the power terminal is located in the third avoidance hole.

[0016] As a preferred technical solution of a female connector, the metal cover is a bent molded part; or

[0017] The metal cover is a draw-out molded part.

[0018] As a preferred technical solution of a female connector, the metal cover and the shell are integrally formed by an insert injection molding process, and the power terminal is detachably connected to the shell; or

[0019] The metal cover, the housing and the power terminal are integrally formed by an insert injection molding process.

[0020] As a preferred technical solution of a female connector, the protective portion includes a top wall, two first side walls spaced apart along the second direction, and a second side wall located on a side of the protective portion close to the plugging slot, and the top wall is connected to the bottom wall of the plugging slot through the second side wall;

[0021] One end of the first side wall is connected to the top wall, and the other end is provided with a gap with the bottom wall of the plug slot; or one end of the first side wall is connected to the top wall, and the other end is connected to the bottom wall of the plug slot.

[0022] As a preferred technical solution for a female connector, the protective portion includes a reinforcing rib portion, the reinforcing rib portion is located at an end of the protective portion away from the plug-in slot, and the reinforcing rib portion extends into the center island.

[0023] On the other hand, a board-to-board connector is provided, including a male connector and the female socket connector described in any of the above solutions. Male metal terminals are provided at both ends of the male connector. The male metal terminals are provided with a plurality of fourth contact points, and the plurality of fourth contact points are arranged corresponding to the first contact points and the second contact points. The male connector can be inserted into the connection slot of the female socket connector, and the male metal terminals are inserted into the insertion slots. Some of the fourth contact points are electrically connected to the first contact points, and some of the fourth contact points are electrically connected to the second contact points.

[0024] The beneficial effects of the present utility model are as follows:

[0025] The present utility model provides a female socket connector and a board-to-board connector. Two terminal assemblies are arranged at both ends of the connection slot, and the protective parts of the two metal covers cover both ends of the middle island. When the female socket connector needs to be connected to an external male connector, the male connector is inserted into the connection slot. At this time, the protective part can protect the middle island, and the metal cover can also protect both ends of the connection slot. It is not easy for both ends of the middle island and the connection slot to be damaged or impaired. The present utility model strengthens the protection through the metal cover, enhances the strength of both ends of the connection slot and both ends of the middle island, and it is not easy to damage the plastic at both ends during the process of inserting the male connector and the female socket connector into each other, thereby ensuring the reliable stability of the function. Moreover, the male connector is electrically connected to the circuit board through a plurality of first contact points of the metal cover and the second contact points of the power terminals, increasing the number of contact points for the electrical connection between the female socket connector and the male connector, and improving the overall large current passing capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the description of the embodiments of the present utility model. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the content of the embodiments of the present utility model and these drawings.

[0027] Figure 1 is a schematic structural diagram of the board-to-board connector provided by the specific embodiment of the present utility model;

[0028] Figure 2 is an exploded structural view of the female socket connector provided by the specific embodiment of the present utility model;

[0029] Figure 3 is an exploded structural view of the terminal assembly and the male metal terminal provided by the specific embodiment of the present utility model;

[0030] Figure 4It is one of the schematic structural diagrams of the terminal assembly provided by the specific embodiment of the present utility model;

[0031] Figure 5 It is the second schematic structural diagram of the terminal assembly provided by the specific embodiment of the present utility model;

[0032] Figure 6 It is the first schematic structural diagram of the metal cover provided by the specific embodiment of the present utility model;

[0033] Figure 7 It is the second schematic structural diagram of the metal cover provided by the specific embodiment of the present utility model;

[0034] Figure 8 It is the third schematic structural diagram of the terminal assembly provided by the specific embodiment of the present utility model.

[0035] The markings in the figure are as follows:

[0036] 10, female socket connector; 20, male head connector; 201, male head metal terminal; 2011, fourth contact point;

[0037] 1, housing; 11, connection groove; 12, middle island;

[0038] 2, terminal assembly; 21, metal cover; 211, protection part; 2111, top wall; 2112, first side wall; 2113, second side wall; 2114, reinforcing rib part; 212, first contact point; 213, insertion slot; 2131, first avoidance hole; 2132, second avoidance hole; 2133, third avoidance hole; 22, power terminal; 221, elastic arm; 222, second contact point; 223, welding terminal part; 224, connection arm; 225, third contact point; 3, signal terminal. Specific Embodiment

[0039] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the sake of description, only parts related to the present utility model are shown in the drawings, rather than all the structures.

[0040] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0041] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0042] In the description of this embodiment, the orientation or positional relationships such as "up", "down", "left" and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0043] Embodiment 1

[0044] As Figure 1 and Figure 2 shown, this embodiment provides a female socket connector 10, which includes a housing 1 and two terminal assemblies 2. Specifically, the housing 1 is provided with a connection groove 11 extending in the first direction, and a middle island 12 is arranged in the middle of the connection groove 11; the two terminal assemblies 2 are respectively installed at both ends of the connection groove 11. The terminal assembly 2 includes a metal cover 21 and a power terminal 22. The metal cover 21 is provided with a protection part 211 and a terminal part. The protection part 211 covers the end of the middle island 12; the terminal part includes a plurality of first contact points 212; the power terminal 22 is provided with two elastic arms 221 at intervals in the second direction, and second contact points 222 are arranged on the opposite side walls of the two elastic arms 221; the metal cover 21 is provided with a plug-in groove 213, and the plug-in groove 213 is located on the side of the protection part 211 away from the middle island 12. The first contact points 212 and the second contact points 222 are both located in the plug-in groove 213, and welding terminal parts 223 are arranged at the ends of the metal cover 21 and the power terminal 22 facing away from the opening of the plug-in groove 213. The welding terminal parts 223 are used for welding and connecting to the pads of the circuit board. In this embodiment, the first direction is X, the second direction is Y, the first direction is perpendicular to the second direction, and signal terminals 3 for connecting a male connector 20 are arranged on both sides of the middle island 12 along the second direction. The number of the signal terminals 3 is adaptively designed according to the specification requirements.

[0045] Among them, two terminal assemblies 2 are arranged at both ends of the connection slot 11, and the protective parts 211 of the two metal covers 21 are arranged at both ends of the center island 12. When the female connector 10 needs to be connected to the external male connector 20, the male connector 20 is plugged into the connection slot 11. At this time, the protective part 211 can protect the center island 12, and the metal cover 21 can also protect the two ends of the connection slot 11. The center island 12 and the two ends of the connection slot 11 are not easy to be damaged or damaged. The utility model strengthens the protection through the metal cover 21, and the strength of the two ends of the connection slot 11 and the two ends of the center island 12 is strengthened. In the process of plugging the male connector 20 and the female connector 10, it is not easy to damage the plastic at both ends, thereby ensuring the reliable stability of the function. Furthermore, the male connector 20 is electrically connected to the circuit board through multiple first contact points 212 of the metal cover 21 and the second contact point 222 of the power terminal 22, which increases the number of contact points for the electrical connection between the female connector 10 and the male connector 20, and improves the overall ability to pass large currents.

[0046] In this embodiment, Figure 2 and Figure 3 As shown, the power terminal 22 is U-shaped, and the elastic arm 221 is longer, which is conducive to elasticity and avoidance of deformation. The two side walls of the plug slot 213 along the second direction are both provided with a first avoidance hole 2131. The power terminal 22 is sleeved on the outer wall of the metal cover 21, and the second contact point 222 is penetrated through the first avoidance hole 2131 and extends into the plug slot 213. Among them, after the power terminal 22 is sleeved on the outer wall of the metal cover 21, the elastic arm 221 is located outside the first avoidance hole 2131. Therefore, during the plug-in process of the male connector 20, the elastic arm 221 will not interfere with the male connector 20, forming a structure to prevent the elastic arm 221 of the power terminal 22 from interfering, and only the second contact point 222 is electrically connected to the male connector 20, thereby improving the reliability of plug-in.

[0047] Preferably, the side walls of the plug slot 213 opposite to each other along the second direction are provided with a first contact point 212; and / or, the side wall of the plug slot 213 away from the protective portion 211 is provided with a first contact point 212. In this embodiment, the side walls of the plug slot 213 opposite to each other along the second direction are provided with a first contact point 212, and the two first contact points 212 are located on both sides of the protective portion 211; the side wall of the plug slot 213 away from the protective portion 211 is also provided with a first contact point 212, and a total of three first contact points 212 are provided on the metal cover 21, and a total of two second contact points 222 are provided on the power terminal 22, so the terminal assembly 2 includes a total of five contact points, which improves the overall large current passing capacity.

[0048] In other embodiments, Figure 2 and Figure 4As shown, the power terminal 22 further includes a connecting arm 224. The two elastic arms 221 are connected by the connecting arm 224. The connecting arm 224 is provided with a third contact point 225. A second avoidance hole 2132 is provided on the side wall of the plugging slot 213 away from the protection part 211. The power terminal 22 is sleeved on the outer wall of the metal cover 21, and the third contact point 225 passes through the second avoidance hole 2132 and extends into the plugging slot 213. Among them, a total of two first contact points 212 are provided on the metal cover 21, and the power terminal 22 is provided with two second contact points 222 and one third contact point 225. Therefore, the terminal assembly 2 includes a total of five contact points, improving the overall large current passing ability.

[0049] In this embodiment, the metal cover 21 is a drawn forming part, and the metal cover 21 is made by a stamping and drawing forming process. The plugging slot 213 is surrounded by three inner walls and the protection part 211. The three inner walls of the plugging slot 213 are connected together by folding at the corners between the three inner walls, enhancing the strength of the three inner walls. In other embodiments, as Figure 5 shown, the metal cover 21 is a bent forming part, and the metal cover 21 is made by a bending forming process.

[0050] Furthermore, the metal cover 21 and the housing 1 are integrally formed by an insert injection molding process, and the power terminal 22 is detachably connected to the housing 1, realizing the fixed connection among the metal cover 21, the power terminal 22 and the housing 1. Among them, the structure of the integral molding of the metal cover 21 and the housing 1 greatly optimizes the guiding performance when the male connector 20 is inserted into the female connector 10, improving the strength and anti-breakage ability. The power terminal 22 can be connected to the housing 1 by bonding, clamping or through fasteners. The second contact point 222 of the power terminal 22 forms a multi-point flexible and reliable connection with the male connector 20.

[0051] In this embodiment, as Figure 6As shown, the protection part 211 includes a top wall 2111, two first side walls 2112 arranged at intervals in the second direction, and a second side wall 2113 on the side of the protection part 211 close to the insertion slot 213. The top wall 2111 is connected to the bottom wall of the insertion slot 213 through the second side wall 2113; one end of the first side wall 2112 is connected to the top wall 2111, and the other end is connected to the bottom wall of the insertion slot 213. Among them, the protection part 211 is designed in a semi-enclosed shape, and the four-sided metal is used to protect the end of the middle island 12, so that when the male connector 20 is inserted into the female connector 10, the middle island 12 is not easily damaged or damaged. Moreover, one end of the two first side walls 2112 is connected to the top wall 2111, and the other end is connected to the bottom wall of the insertion slot 213. At the corner of the first side wall 2112 and the second side wall 2113, the two first side walls 2112 and the second side wall 2113 are connected together by a stretching method. At the same time, the second side wall 2113 and the two first side walls 2112 are both connected to the bottom wall of the insertion slot 213, enhancing the structural strength of the protection part 211. Of course, as Figure 7 shown, in other embodiments, one end of the first side wall 2112 is connected to the top wall 2111, and the other end may also have a gap with the bottom wall of the insertion slot 213.

[0052] Preferably, the protection part 211 includes a reinforcing rib part 2114. The reinforcing rib part 2114 is located at one end of the protection part 211 away from the insertion slot 213, and the reinforcing rib part 2114 extends into the middle island 12. During the process of forming the metal cover 21 and the housing 1 by insert injection molding, the reinforcing rib part 2114 is inserted into the middle island 12, improving the connection strength between the metal cover 21 and the middle island 12.

[0053] Embodiment Two

[0054] This embodiment provides a female connector 10. As Figure 8 shown, the structure of the female connector 10 provided in this embodiment is basically the same as that of Embodiment One, only there are some differences in the structure of the power terminal 22. The same structures as those in Embodiment One will not be described in detail in this embodiment.

[0055] In this embodiment, a third avoidance hole 2133 is provided at the bottom of the insertion slot 213, and the power terminal 22 is located in the third avoidance hole 2133. Among them, both ends of the power terminal 22 are bent upward to form elastic arms 221, and the ends of the elastic arms 221 are located below the inner wall of the insertion slot 213, preventing interference at the ends of the elastic arms 221 when the male connector 20 is inserted. The metal cover 21, the housing 1, and the power terminal 22 are integrally formed by insert injection molding, realizing the fixed connection of the three.

[0056] Embodiment Three

[0057] This embodiment provides a board-to-board connector. As Figures 1 - 3As shown, it includes a male connector 20 and the female connector 10 in the first embodiment or the second embodiment. Both ends of the male connector 20 are provided with male metal terminals 201. The male metal terminals 201 are provided with a plurality of fourth contact points 2011. The plurality of fourth contact points 2011 are correspondingly arranged with the first contact point 212 and the second contact point 222. The male connector 20 can be inserted into the connection slot 11 of the female connector 10, and the male metal terminals 201 are inserted into the insertion slots 213. Some of the fourth contact points 2011 are electrically connected to the first contact point 212, and some of the fourth contact points 2011 are electrically connected to the second contact point 222. In this embodiment, the terminal assembly 2 includes a total of five contact points, and the male metal terminals 201 are provided with five fourth contact points 2011, which improves the overall large current passing ability.

[0058] Note that the above is only the preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A female socket connector, characterized in that, Comprising: A housing (1), the housing (1) is provided with a connecting groove (11) extending in a first direction, and a middle island (12) is provided in the middle of the connecting groove (11); Two terminal components (2), which are respectively installed at both ends of the connecting groove (11), the terminal component (2) includes a metal cover (21) and a power terminal (22), the metal cover (21) is provided with a protection part (211) and a terminal part, the protection part (211) covers the end of the middle island (12); the terminal part includes a plurality of first contact points (212); the power terminal (22) is provided with two elastic arms (221) at intervals in a second direction, and second contact points (222) are provided on the opposite side walls of the two elastic arms (221); The metal cover (21) is provided with a plugging groove (213), the plugging groove (213) is located on the side of the protection part (211) away from the middle island (12), the first contact point (212) and the second contact point (222) are both located in the plugging groove (213), and welding terminal parts (223) are provided at the ends of the metal cover (21) and the power terminal (22) facing away from the opening of the plugging groove (213), and the welding terminal parts (223) are used for welding and connecting to the pads of the circuit board.

2. The female socket connector according to claim 1, wherein, The power terminal (22) is U-shaped, and first avoidance holes (2131) are provided on both side walls of the plugging groove (213) in the second direction, the power terminal (22) is sleeved on the outer wall of the metal cover (21), and the second contact point (222) passes through the first avoidance hole (2131) and extends into the plugging groove (213).

3. The female socket connector according to claim 2, characterized in that, The power terminal (22) further includes a connecting arm (224), the two elastic arms (221) are connected by the connecting arm (224), the connecting arm (224) is provided with a third contact point (225), a second avoidance hole (2132) is provided on the side wall of the plugging groove (213) away from the protection part (211), the power terminal (22) is sleeved on the outer wall of the metal cover (21), and the third contact point (225) passes through the second avoidance hole (2132) and extends into the plugging groove (213).

4. The female socket connector according to claim 1, wherein The first contact points (212) are provided on both opposite side walls of the plugging groove (213) in the second direction; and / or, The first contact points (212) are provided on the side wall of the plugging groove (213) away from the protection part (211).

5. The female socket connector according to claim 1, characterized in that, A third avoidance hole (2133) is provided at the bottom of the plugging groove (213), and the power terminal (22) is located in the third avoidance hole (2133).

6. The female socket connector according to claim 1, characterized in that The metal cover (21) is a bent and formed part; or The metal cover (21) is a drawn and formed part.

7. The female socket connector according to any one of claims 1-6, characterized in that, The metal cover (21) and the housing (1) are integrally formed by an insert injection molding process, and the power terminal (22) is detachably connected to the housing (1); or The metal cover (21), the housing (1) and the power terminal (22) are integrally formed by an insert injection molding process.

8. The female socket connector according to claim 1, characterized in that, The protection part (211) includes a top wall (2111), two first side walls (2112) spaced along the second direction, and a second side wall (2113) on one side of the protection part (211) close to the insertion slot (213). The top wall (2111) is connected to the bottom wall of the insertion slot (213) through the second side wall (2113). One end of the first side wall (2112) is connected to the top wall (2111), and there is a gap between the other end and the bottom wall of the insertion slot (213); or one end of the first side wall (2112) is connected to the top wall (2111), and the other end is connected to the bottom wall of the insertion slot (213).

9. The female socket connector according to claim 1, characterized in that, The protection part (211) includes a reinforcing rib part (2114). The reinforcing rib part (2114) is located at one end of the protection part (211) away from the insertion slot (213), and the reinforcing rib part (2114) extends into the middle island (12).

10. A board-to-board connector, characterized in that, It includes a male connector (20) and the female seat connector according to any one of claims 1-9. Both ends of the male connector (20) are provided with male metal terminals (201). The male metal terminals (201) are provided with a plurality of fourth contact points (2011). The plurality of fourth contact points (2011) are correspondingly arranged with the first contact point (212) and the second contact point (222). The male connector (20) can be inserted into the connection slot (11) of the female seat connector. The male metal terminals (201) are inserted into the insertion slot (213). Part of the fourth contact points (2011) are electrically connected to the first contact point (212), and part of the fourth contact points (2011) are electrically connected to the second contact point (222).

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