A substrate connector

Abstract

This application discloses a connector for a substrate, comprising: an insulating body having a base plate that is longitudinally elongated along a first direction, a central island formed by rising upward from the middle of the base plate and extending along the first direction, and two side plates formed by rising upward from both sides of the base plate and extending along the first direction, wherein an upward-opening mating cavity is formed between the side plates and the central island; a plurality of conductive terminals, respectively arranged in two rows and fixed to the two side plates; and a main armor member having two side portions that extend along the first direction and are spaced apart, and an end portion that integrally connects one end of the two side portions; wherein only the end of the main armor member that is away from the end portion along the first direction is fixed to the corresponding side plate of the insulating body.

Description

Technical Field

[0001] This application relates to a connector for a substrate. Background Technology

[0002] Board connectors, an indispensable part of electronic products, feature fast and stable transmission, low loss, and high fidelity, acting as a bridge for communication in electronic circuits. The development of 4G and 5G has accelerated the iteration speed of consumer electronics products. The rapid development of multi-functional modules in smartphones and wearable devices has promoted the development of board connectors. Modules such as displays, touchscreens, antenna connections, battery connections, microphone connections, and cameras all require board-to-board connections. Therefore, smart devices place high demands on the miniaturization, stability, and reliability of board connectors.

[0003] Currently, the mainstream connectors on the market include 0.35mm and 0.30mm pitch connectors. In recent years, brands have begun to launch and mass-produce 0.175mm pitch connectors. With the development of technology, the overall height, width, length and pitch between terminals of the connectors are getting smaller and smaller, and the overall manufacturing process is becoming more and more difficult. The stability of the connection between the metal parts and the plastic parts of the connector and the overall flatness of the connector are important product parameters. Therefore, it is necessary to improve the design of a connector that is easy to manufacture and has a stable overall structure and performance. Utility Model Content

[0004] The purpose of this application is to provide a connector for a substrate that is easy to manufacture, has a stable overall structure, and good flatness.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A connector for a substrate, defining a first direction, a second direction, and a vertical direction that are perpendicular to each other, includes:

[0007] An insulating body is provided with a base plate that is longitudinally elongated along a first direction, a central island that rises upward from the middle of the base plate and extends along the first direction, and two side plates that rise upward from both sides of the base plate and extend along the first direction, wherein the side plates and the central island form an upward-opening mating cavity.

[0008] A plurality of conductive terminals are arranged in two rows and fixed on the two side plates respectively. Each conductive terminal includes a terminal fixing portion fixed to the side plate, a terminal contact portion extending from the terminal fixing portion and at least partially elastically protruding into the mating cavity for mating with the mating connector, and a terminal mating portion extending from the terminal fixing portion and exposed outside the insulating body for mating with the mating substrate.

[0009] The main armor piece has two side portions that extend along the first direction and are spaced apart, and an end portion that integrally connects one end of the two side portions.

[0010] Only one end of the main armor piece, located away from the end along the first direction, is fixed to the corresponding side plate of the insulating body.

[0011] Furthermore, the end portion includes two upper side pieces extending along the first direction and spaced apart, and an upper end piece integrally connecting one end of the two ends, wherein the outer edge of each upper side piece is integrally connected to the upper edge of the side portion.

[0012] Furthermore, each of the sides extends to form an elastic arm, the elastic arm extends in a cantilever shape along the first direction, the free end of the elastic arm can swing elastically along the second direction, and the elastic arm is corresponding to and spaced apart from the side.

[0013] During the docking process between the substrate connector and the mating connector, the elastic arm as a whole does not come into contact with the insulating body.

[0014] Furthermore, the lower edge of one end of the elastic arm is integrally connected to the lower edge of the corresponding side portion via a connecting piece;

[0015] Alternatively, one end edge of the elastic arm is integrally connected to one end edge of the corresponding side portion via a connecting piece;

[0016] Alternatively, one end edge of the elastic arm and one end edge of the corresponding upper side piece are integrally connected by a connecting piece.

[0017] Furthermore, it also includes: an auxiliary armor piece, having a base plate, a side plate fixing part formed by integrally bending and extending the base plate and fixing it to one end of the side plate, and a center island fixing part formed by integrally bending and extending the base plate and fixing it to one end of the center island.

[0018] The base plate is located between the two sides of the main armor piece along the second direction.

[0019] Furthermore, one end edge of the base plate component along the first direction is fixed integrally with one end edge of the base plate by injection molding, and the other end edge of the base plate component along the first direction is integrally fixed with the end of the main armor component by an insulating block formed by integral injection molding.

[0020] Furthermore, the insulating body and the insulating block are a two-piece structure.

[0021] Furthermore, the base plate extends upward along the first direction at one end edge away from the insulating body to form a fixing foot embedded in the insulating block;

[0022] The end portion extends downward along the first direction at one end edge away from the insulating body to form a fixing piece embedded in the insulating block.

[0023] Furthermore, the side plate fixing part includes a first leg portion embedded in the side plate and exposed in the docking cavity, a bent portion formed by bending the upper edge of the first leg portion along the second direction toward the side away from the docking cavity, and a second leg portion embedded in the side plate formed by further bending the free end of the bent portion along the second direction.

[0024] The central island fixing part includes a first foot embedded in one end of the central island along the first direction and exposed in the docking cavity, a transition part formed by bending the upper edge of the first foot along the first direction toward the side where the central island is located, and a second foot embedded in the central island formed by further bending the free end of the transition part along the first direction.

[0025] Furthermore, only one end of the main armor piece located away from the end along the first direction is integrally formed and fixed to the corresponding side plate by injection molding, and the other parts of the main armor piece do not contact the insulating body.

[0026] Compared with the prior art, the beneficial effects of this application are: the connector for the substrate of this application is easy to manufacture, has a stable overall structure and good flatness. Attached Figure Description

[0027] Figure 1 This is a three-dimensional schematic diagram of the connector for the substrate of this application.

[0028] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the connector for the middle substrate viewed from another angle.

[0029] Figure 3 yes Figure 1 The exploded perspective view of the connector for the substrate shown in the figure specifically illustrates the perspective view after the insulating body is separated.

[0030] Figure 4 yes Figure 2 The exploded perspective view of the connector for the substrate shown in the diagram specifically illustrates the perspective view after the insulating body and the main armor are separated.

[0031] Figure 5 yes Figure 4 The exploded perspective view of the connector for the substrate shown in the diagram specifically illustrates the perspective view after the insulating body, main armor, and insulating block are separated.

[0032] Figure 6 yes Figure 5 The exploded perspective view of the connector for the substrate shown is a schematic diagram viewed from another angle.

[0033] Figure 7 yes Figure 1 Top view of the connector for the middle substrate.

[0034] Figure 8 yes Figure 1 Bottom view of the connector for the middle substrate.

[0035] Figure 9 yes Figure 1 Side view of the connector for the middle substrate.

[0036] Figure 10 It is self Figure 9 A cross-sectional view along the BB line.

[0037] Figure 11 It is self Figure 7 A cross-sectional view along line AA in the middle. Detailed Implementation

[0038] The technical solutions in 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 in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0039] In this application description, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] In the description of this application, it should be understood that the terms “comprising” and “having” as used herein, and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are expressly listed, but may include other steps or units that are not expressly listed or that are inherent to such process, method, product, or apparatus.

[0041] To ensure the accuracy of the description throughout this application, all design directions should be referred to as... Figure 1For reference, the X-axis direction is defined as the first direction (that is, the length direction of the connector for the substrate), the Y-axis direction is defined as the up-down direction (that is, the thickness direction of the connector for the substrate), and the Z-axis direction is defined as the second direction (that is, the width direction of the connector for the substrate).

[0042] Please refer to the reference. Figures 1 to 11 As shown, this application discloses a connector for a substrate, comprising an insulating body 1, a plurality of conductive terminals 2 fixed to the insulating body 1, a main armor 3, an auxiliary armor 4, and an insulating block 5. Specifically, the insulating body 1 includes a base plate 11 extending longitudinally along a first direction, a central island 12 extending upward from the middle of the base plate 11 along the first direction, and two side plates 13 extending upward from both sides of the base plate 11 along the first direction. An upward-opening mating cavity 10 is formed between the side plates 13 and the central island 12. Looking at the insulating body 1 alone, the mating cavity 10 is open upwards, and also open at both ends along the first direction.

[0043] In this embodiment, several conductive terminals 2 are arranged in two corresponding rows and fixed on two side plates 13. Preferably, the conductive terminals 2 are integrally fixed to the insulating body 1 via injection molding. Each conductive terminal 2 includes a terminal fixing portion 21 fixed to the side plate 13, a terminal contact portion 22 extending from the terminal fixing portion 21 and at least partially elastically protruding into the mating cavity 10 for mating with a mating connector (not shown), and a terminal mating portion 23 extending from the terminal fixing portion 21 and exposed outside the insulating body 1 for mating with a mating substrate (not shown). For details, please refer to... Figure 11 As shown, the terminal fixing portion 21 is generally n-shaped. One leg of the terminal fixing portion 21, along the second direction and close to the docking cavity 10, is embedded in the inner wall of the corresponding side plate 13 and protrudes into the docking cavity 10. The other leg of the terminal fixing portion 21, along the second direction and away from the docking cavity 10, is completely embedded in the corresponding side plate 13. The terminal docking portion 23 is formed by bending and extending the lower edge of the other leg of the terminal fixing portion 21 along the second direction away from the docking cavity 10. The terminal contact portion 22 includes a first segment 221 formed by extending the lower edge of the leg of the terminal fixing portion 21 close to the docking cavity 10 along the second direction toward the side where the central island 12 is located, and a second segment 222 formed by bending and extending the first segment 221 upward along the second direction toward the end close to the central island 12. The first segment 221, the second segment 222, and the leg of the terminal fixing portion 21 close to the docking cavity 10 together constitute a generally U-shaped structure.

[0044] Please refer to Figure 11As shown in this application, the surface of the central island 12 facing the docking cavity 10 is recessed inward to form a relief groove 101 corresponding to the position of the second segment 222. The relief groove 101 penetrates the central island 12 and the base plate 11 in the vertical direction. Further, the base plate 11 is formed with a mating groove 102 corresponding to the position of each first segment 221 in the vertical direction, and the mating groove 102 communicates with the relief groove 101 in the second direction. The relief groove 101 is used to accommodate the elastic deformation of the second segment 222 in the second direction, and the mating groove 102 is used to accommodate the elastic deformation of the first segment 221 in the vertical direction. In other embodiments, in order to consider the overall deformation of the terminal contact portion 22 and the docking contact force with the docking connector, the mating groove 102 can also be eliminated or reduced. For example, the end of the first segment 221 connected to the terminal fixing portion 21 can be designed to be fixed to the base plate 11 of the insulating body 1, and the mating groove 102 can only be formed at the end of the first segment 221 near the central island 12 in the second direction.

[0045] Please refer to the reference. Figures 1 to 10 As shown, the main armor component 3 is formed by stamping and bending a metal sheet. The main armor component 3 includes two side portions 31 extending along the first direction and spaced apart, and an end portion 32 integrally connecting the ends of the two side portions 31 away from the insulating body 1 along the first direction. The side portions 31 extend in a sheet shape along the first direction and the vertical direction. The end portion 32 extends in a sheet shape along the first direction and the second direction. The side portions 31 of the main armor component 3 are fixed to the corresponding side plate 13 at the end away from the end portion 32 along the first direction. Specifically, the end portion 32 includes two upper side pieces 321 extending along the first direction and an upper end piece 322 integrally connecting the ends of the two upper side pieces 321 away from the insulating body 1 in the first direction. The two upper side pieces 321 are spaced apart along the second direction. The outer edges of each upper side piece 321 are integrally connected to the upper edges of the side portions 31 to form a single integral component.

[0046] Each of the side portions 31 further extends to form an elastic arm 311, which extends in a cantilever shape along the first direction. The free end of the elastic arm 311 can elastically swing along the second direction. The elastic arms 311 are corresponding to and spaced apart from the side portions 31. During the docking process between the substrate connector and the mating connector, the elastic arm 311 does not contact the insulating body 1 as a whole.

[0047] In one embodiment (i.e., the embodiment shown in the accompanying drawings of this application), the lower edge of the elastic arm 311 at the end away from the insulating body 1 along the first direction is integrally connected to the lower edge of the corresponding side portion 31 via a connecting piece 3110. In another embodiment (not shown), the end edge of the elastic arm 311 at the end away from the insulating body 1 along the first direction is integrally connected to the end edge of the corresponding side portion 31 via a connecting piece (not shown). In yet another embodiment (not shown), the end edge of the elastic arm 311 at the end away from the insulating body 1 along the first direction is integrally connected to the end edge of the corresponding upper side piece 321 via a connecting piece (not shown).

[0048] Please refer to the reference. Figures 1 to 10 As shown, the auxiliary armor component 4 is formed by stamping and bending a metal sheet, forming a base plate 41, a side plate fixing part 42 corresponding to one end of the side plate 13 and a center island fixing part 43 corresponding to one end of the center island 12. The base plate 41 is located between the two sides 31 of the main armor component 3 along the second direction. The auxiliary armor component 4 and the insulating body 1 are fixed together by integral injection molding. Specifically, one end edge of the base plate 41 along the first direction is fixed together with one end edge of the base plate 11 by injection molding. The other end edge of the base plate 41 along the first direction is integrally fixed to the end 32 (specifically the upper end piece 322) of the main armor component 3 by integral injection molding to form an insulating block 5. In a preferred embodiment of this application, the insulating body 1 and the insulating block 5 are a two-piece insulating structure. Furthermore, the base plate 41 extends upward along the first direction at one end edge away from the insulating body 1 to form a fixing foot 44 embedded in the insulating block 5. The end 32 extends downward along the first direction at one end edge away from the insulating body 1 to form a fixing piece 320 embedded in the insulating block 5.

[0049] Further, the side plate fixing part 42 includes a first leg (unlabeled) correspondingly embedded in the side plate 13 and exposed in the docking cavity 10, a bent part (unlabeled) formed by bending the upper edge of the first leg along the second direction away from the docking cavity 10, and a second leg (unlabeled) correspondingly embedded in the side plate 13 formed by further bending the free end of the bent part along the second direction. The island fixing part 43 includes a first leg (unlabeled) correspondingly embedded in one end of the island 12 along the first direction and exposed in the docking cavity 10, a transition part (unlabeled) formed by bending the upper edge of the first leg along the first direction towards the side where the island 12 is located, and a second leg (unlabeled) correspondingly embedded in the island 12 formed by further bending the free end of the transition part along the first direction.

[0050] In the connector for the substrate of this application, the insulating body 1, the main armor 3, the auxiliary armor 4, and the insulating block 5 together define and connect the two mating cavities 10 to form an annular shape that opens upwards. The elastic arm 311 is located below the upper side plate 321 along the vertical direction, and a portion of the elastic arm 311 protrudes into the annular mating cavity 10 to form a contact protrusion (not labeled) that engages with the locking mechanism of the mating connector. Please refer to the reference. Figure 1 , Figure 9 and Figure 11 As shown, in a preferred embodiment, the end 32 of the main armor piece 3 is higher than the insulating body 1 in the vertical direction.

[0051] In this embodiment, the main armor piece 3 has only one end of its side portion 31, away from the end portion 32 along the first direction, integrally fixed to the corresponding side plate 13 by injection molding. Other parts of the main armor piece 3 do not contact the insulating body 1. The upper and lower surfaces of the bottom plate 41 of the auxiliary armor piece 4, located at the middle position along the first direction, are not covered with any insulating material and are exposed along its entire length in the second direction. Except for the portion of each side portion 31 fixed to the side plate 13 at one end, the connecting piece 3110, the elastic arm 311, and the upper side piece 321 do not abut or contact the insulating body 1 or the insulating block 5. In a preferred embodiment, the insulating block 5 is designed to be small, so that the upper end piece 322, along the second direction, near the end of each upper side piece 321, is also not covered with any insulating material (insulating body 1 and insulating block 5). This allows the main armor component 3 and the auxiliary armor component 4 to have a large elastic margin, which is beneficial to the overall flatness of the connector for the substrate and the welding stability between the connector for the substrate and the mating substrate. At the same time, it can ensure that the elastic arm 311 is not prone to plastic deformation.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0053] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connector for a substrate, defining a first direction, a second direction, and a vertical direction that are perpendicular to each other, characterized in that, include: The insulating body (1) is provided with a base plate (11) that is longitudinally elongated along a first direction, a central island (12) that is erected from the middle position of the base plate (11) and extends along the first direction, and two side plates (13) that are erected from both sides of the base plate (11) and extend along the first direction. An upward-opening docking cavity (10) is formed between the two side plates (13) and the central island (12). A plurality of conductive terminals (2) are arranged in two rows and fixed on the two side plates (13). Each conductive terminal (2) includes a terminal fixing part (21) fixed to the side plate (13), a terminal contact part (22) extending from the terminal fixing part (21) and at least partially elastically protruding into the mating cavity (10) for mating with the mating connector, and a terminal mating part (23) extending from the terminal fixing part (21) and exposed outside the insulating body (1) for mating with the mating substrate. The main armor piece (3) has two side portions (31) that extend along the first direction and are spaced apart, and an end portion (32) that integrally connects one end of the two side portions (31); The main armor piece (3) is fixed only at one end of the side portion (31) away from the end portion (32) along the first direction to the corresponding side plate (13) of the insulating body (1).

2. The connector for a substrate according to claim 1, characterized in that: The end portion (32) includes two upper side pieces (321) that extend along the first direction and are spaced apart, and an upper end piece (322) that integrally connects one end of the two ends (32). The outer edge of each upper side piece (321) is integrally connected with the upper edge of the side portion (31).

3. The connector for a substrate according to claim 2, characterized in that: Each of the sides (31) further extends to form an elastic arm (311), the elastic arm (311) extends in the first direction in a cantilever shape, the free end of the elastic arm (311) can swing elastically in the second direction, and the elastic arm (311) is corresponding to and spaced apart from the side (31). During the docking process between the substrate connector and the mating connector, the elastic arm (311) does not contact the insulating body (1) as a whole.

4. The connector for a substrate according to claim 3, characterized in that: The lower edge of one end of the elastic arm (311) is integrally connected to the lower edge of the corresponding side (31) by a connecting piece; Alternatively, one end edge of the elastic arm (311) is integrally connected to one end edge of the corresponding side portion (31) via a connecting piece; Alternatively, one end edge of the elastic arm (311) and the corresponding end edge of the upper side plate (321) are integrally connected by a connecting piece.

5. The connector for a substrate according to any one of claims 1 to 4, characterized in that, Also includes: The auxiliary armor piece (4) has a base plate piece (41), a side plate fixing part (42) formed by integrally bending and extending the base plate piece (41) and fixing one end of the side plate (13), and a center island fixing part (43) formed by integrally bending and extending the base plate piece (41) and fixing one end of the center island (12). The base plate (41) is located between the two sides (31) of the main armor (3) along the second direction.

6. The connector for a substrate according to claim 5, characterized in that, One end edge of the base plate (41) along the first direction is fixed to one end edge of the base plate (11) by injection molding. The other end edge of the base plate (41) along the first direction is fixed to the end (32) of the main armor (3) by an integrally injection molded insulating block (5).

7. The connector for a substrate according to claim 6, characterized in that: The insulating body (1) and the insulating block (5) are a two-piece structure.

8. The connector for a substrate according to claim 6, characterized in that: The base plate (41) extends upward along the first direction at one end away from the insulating body (1) to form a fixing foot (44) embedded in the insulating block (5); The end (32) extends downward along the first direction at one end edge away from the insulating body (1) to form a fixing piece (320) embedded in the insulating block (5).

9. The connector for a substrate according to claim 5, characterized in that: The side plate fixing part (42) includes a first leg part embedded in the side plate (13) and exposed in the docking cavity (10), a bent part formed by bending the upper edge of the first leg part along the second direction away from the docking cavity (10), and a second leg part embedded in the side plate (13) formed by further bending the free end of the bent part along the second direction. The central island fixing part (43) includes a first foot that is embedded in one end of the central island (12) along the first direction and exposed in the docking cavity (10), a transition part formed by bending the upper edge of the first foot along the first direction toward the side where the central island (12) is located, and a second foot that is embedded in the central island (12) formed by further bending the free end of the transition part along the first direction.

10. The connector for a substrate according to claim 1, characterized in that: The main armor piece (3) is fixed together with the corresponding side plate (13) by integral injection molding only at one end of the side portion (31) away from the end (32) along the first direction. The other parts of the main armor piece (3) do not contact the insulating body (1).

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