Terminal assembly and connector

Abstract

The application relates to the technical field of connectors, in particular to a terminal assembly and a connector. The terminal assembly and the connector provided by the application comprise an insulator, a wiring terminal and a connecting piece arranged on the insulator respectively, the wiring terminal comprises a first welding part extending out of the insulator, and the edge of the side of the first welding part away from the insulator is at least partially formed with a first groove, and the connecting piece comprises a second welding part; by arranging the first groove on the edge of the first welding part of the wiring terminal, solder can flow into the first groove during the welding process of the terminal assembly and a corresponding printed circuit board, so that the welding strength is increased; in addition, by arranging the connecting piece outside the insulator, the second welding part of the connecting piece can be welded with the corresponding printed circuit board, so that the connecting strength of the terminal assembly and the corresponding printed circuit board is increased.

Description

Technical Field

[0001] This application relates to the field of connector technology, and in particular to a terminal assembly and connector. Background Technology

[0002] Electrical connectors are commonly used in various portable electronic products, measuring instruments, and automotive electronics. Their primary function is to connect a first printed circuit board (PCB) and a second PCB to transmit signals. Currently, electrical connectors generally consist of a male plastic insulating body containing male terminals and a female plastic insulating body containing female terminals. The male and female plastic insulating bodies are interlocked to achieve contact between the male and female terminals.

[0003] Currently, during the contact and mating process of male and female terminals, insufficient soldering strength between the male terminal and the first printed circuit and / or between the female terminal and the second printed circuit can easily cause the terminals to detach from their corresponding printed circuits, thus affecting the efficiency of signal transmission. Utility Model Content

[0004] Based on this, this application provides a terminal assembly and connector to solve the technical problem in the prior art that is not conducive to improving the welding strength between the terminal assembly and the printed circuit board.

[0005] In a first aspect, embodiments of this application provide a terminal assembly, including: An insulator, comprising a fixing portion and a receiving portion; The terminal block includes a first main body portion disposed on the fixing portion and at least partially accommodated in the accommodating portion, and a first welding portion connected to one end of the first main body portion extending out of the accommodating portion, the first welding portion extending out of the accommodating portion, and at least partially forming a first groove on the edge of the first welding portion facing away from the insulator. In addition, the connector located outside the receiving portion includes a second main body portion disposed on the fixing portion and a second welding portion connected to one end of the second main body portion.

[0006] In one embodiment, the two first grooves extend continuously along a first direction on both sides of the first weld portion along a second direction, wherein the first direction is perpendicular to the second direction.

[0007] In one embodiment, the first welding portion includes a first substrate and a first protrusion stacked sequentially along the thickness direction. The width of the first protrusion along the second direction is smaller than the width of the first substrate along the second direction. The side of the first substrate facing away from the insulator forms the bottom wall of the first groove, and the side of the first protrusion forms the side wall of the first groove. The width of the first protrusion in the second direction gradually decreases in the direction away from the first substrate.

[0008] In one embodiment, the edge of the second weld portion facing away from the insulator has at least a second groove formed on it.

[0009] In one embodiment, the two second grooves extend continuously along the second direction on both sides of the second weld portion along the first direction, and the first direction is perpendicular to the second direction.

[0010] In one embodiment, the second welding portion includes a second substrate and a second protrusion stacked sequentially along the thickness direction. The width of the second protrusion along the first direction is smaller than the width of the second substrate along the first direction. The side of the second substrate facing away from the insulator forms the bottom wall of the second groove, and the side of the second protrusion forms the side wall of the second groove. The width of the second protrusion in the first direction gradually decreases in the direction away from the second substrate.

[0011] In one embodiment, the first main body includes a contact portion, a first connecting portion, and an elastic portion connected in sequence. The contact portion is suspended inside the receiving portion, the first connecting portion is fixed to the fixing portion, and the elastic portion extends out of the receiving portion and is connected to the first welding portion.

[0012] In one embodiment, the fixing part includes a fixing body part, the fixing body part includes a fixing bottom and a fixing side part extending from the outer periphery of the fixing bottom away from the first welding part, the fixing bottom is formed with a first fixing groove penetrating the fixing bottom along the insertion direction, and the first connecting part is located in the first fixing groove.

[0013] In one embodiment, the fixing part further includes a fixing structure disposed on the outer surface of the fixing main body, the fixing structure having a second fixing groove extending through the fixing structure along the insertion direction, the second main body being located in the second fixing groove.

[0014] Secondly, embodiments of this application provide a connector that includes the terminal assembly described above.

[0015] The terminal assembly and connector provided in this application include an insulator and a terminal block and a connector respectively disposed on the insulator. The terminal block includes a first welding portion extending out of the insulator. At least a first groove is formed on the edge of the first welding portion facing away from the insulator. The connector includes a second welding portion. By providing a first groove on the edge of the first welding portion of the terminal block, solder can flow into the first groove during the welding process between the terminal assembly and the corresponding printed circuit board, which helps to increase the welding strength. In addition, by providing a connector outside the insulator, the second welding portion of the connector can be welded to the corresponding printed circuit board, which helps to increase the connection strength between the terminal assembly and the corresponding printed circuit board. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a terminal assembly according to an embodiment of this application.

[0017] Figure 2 for Figure 1 A structural schematic diagram of the terminal assembly shown from another perspective.

[0018] Figure 3 for Figure 2 A partially enlarged schematic diagram of the terminal assembly shown.

[0019] Figure 4 for Figure 1 The diagram shows an exploded view of the terminal assembly.

[0020] Figure 5 for Figure 1 Top view of the terminal assembly shown.

[0021] Figure 6 for Figure 1 An exploded view of the terminal assembly shown from another perspective.

[0022] Figure 7 for Figure 5 The sectional view shown is along the AA direction.

[0023] Figure 8 for Figure 5 The sectional view shown is along the BB direction.

[0024] Figure 9 for Figure 1 The diagram shows the structure of the wiring terminals in the terminal assembly.

[0025] Figure 10 for Figure 1 The diagram shows the structure of the connector in the terminal assembly.

[0026] The meanings of the labels in the attached diagram are as follows: 100 - Terminal assembly; 11 - Insulator; 111 - Fixing part; 1111 - Fixing main body part; 1111a - Fixing bottom; 1111b - Fixing side part; 1111c - First fixing groove; 1112 - Fixing structure; 1112a - Second fixing groove; 112 - Receiving part; 12 - Wiring terminal; 121 - First main body part; 1211 - Contact part; 1212 - First connecting part; 1213 - Elastic part; 122 - First welding part; 1221 - First base; 1222 - First protrusion; 123 - First groove (1231 - Bottom wall; 1232 - Side wall); 13 - Connector; 131 - Second main body part; 132 - Second welding part; 1321 - Second base; 1322 - Second protrusion; 133 - Second groove (1331 - Bottom wall; 1332 - Side wall). Detailed Implementation

[0027] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0028] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0030] like Figures 1 to 10 As shown, this is a terminal assembly 100 according to one embodiment of this application. For ease of description, arrows are used to indicate the first direction, the second direction, and the insertion direction in each figure. Unless otherwise specified, the insertion direction, the first direction, and the second direction in each figure are understood according to the directions indicated by these arrows. Furthermore, the first direction is... Figure 1 The terminal assembly shown is in the front-back direction, and the second direction is... Figure 1 The left and right directions of the terminal assembly shown are the insertion directions. Figure 1 The vertical direction, insertion direction, first direction, and second direction of the terminal assembly shown are mutually perpendicular. For example, the insertion direction can correspond to the Z-axis extension direction, the first direction can correspond to the X / Y-axis extension direction, and the second direction can correspond to the Y / X-axis extension direction.

[0031] like Figures 1 to 10 As shown, the terminal assembly 100 includes an insulator 11, a terminal block 12, and a connector 13.

[0032] The insulator 11 includes a fixing part 111 and a receiving part 112.

[0033] The terminal 12 is partially housed within the receiving portion 112 and partially extends out of the receiving portion 112. The terminal 12 includes a first main body portion 121 and a first welding portion 122. The first main body portion 121 is disposed on the fixing portion 111 and is at least partially housed within the receiving portion 112. The first welding portion 122 is connected to one end of the first main body portion 121 that extends out of the receiving portion 112. The first welding portion 122 extends out of the receiving portion 112, and at least part of the edge of the side of the first welding portion 122 facing away from the insulator 11 forms a first groove 123. Specifically, the side of the first welding portion 122 facing away from the insulator 11 is used to connect with the printed circuit board to achieve electrical connection between the terminal 12 and the printed circuit board. That is, the edge of the side of the first welding portion 122 that is welded to the printed circuit board is provided with a first groove 123. During the welding process between the terminal assembly 100 and the corresponding printed circuit board, solder can flow into the first groove 123, which helps to increase the welding strength.

[0034] The connector 13 is located outside the receiving portion 112. The connector 13 includes a second main body portion 131 and a second welding portion 132. The second main body portion 131 is disposed on the fixing portion 111, and the second welding portion 132 is connected to one end of the second main body portion 131. Specifically, the side of the second welding portion 132 facing away from the insulator 11 is used for connection to the printed circuit board. That is, when the terminal 12 is electrically connected to the printed circuit board, the second welding portion 132 is also electrically connected to the printed circuit board, thereby better fixing the terminal assembly 100 to the printed circuit board and increasing the connection strength between the terminal assembly 100 and the corresponding printed circuit board. The connection between the connector 13 and the printed circuit board via the second welding portion 132 is a mechanical connection and does not achieve an electrical connection.

[0035] In this embodiment, by providing a first groove at the edge of the first welding portion of the terminal, solder can flow into the first groove during the welding process between the terminal assembly and the corresponding printed circuit board, which helps to increase the welding strength. In addition, by providing a connector outside the insulation body, the second welding portion of the connector can be welded to the corresponding printed circuit board, which helps to increase the connection strength between the terminal assembly and the corresponding printed circuit board.

[0036] As one implementation method, please refer to Figure 2 and Figure 3As shown, there are two first grooves 123. The two first grooves 123 are located on both sides of the first welding part 122 along the second direction. The two first grooves 123 extend continuously along the first direction, which is perpendicular to the second direction.

[0037] In this embodiment, the two first grooves 123 extend continuously along the two sides of the first welding portion 122 in the second direction, which can increase the length of the first grooves 123 and further increase the welding strength between the terminal block 12 and the corresponding printed circuit board.

[0038] In some implementations, please refer to [the relevant documentation]. Figure 3 As shown, the first welding portion 122 includes a first base 1221 and a first protrusion 1222 stacked sequentially along its thickness direction. The width of the first protrusion 1222 along the second direction is smaller than the width of the first base 1221 along the second direction. The side of the first base 1221 facing away from the insulator 11 forms the bottom wall 1231 of the first groove 123, that is, the portion of the first base 1221 facing away from the insulator 11 not covered by the first protrusion 1222 serves as the bottom wall 1231 of the first groove 123. The side of the first protrusion 1222 forms the side wall 1232 of the first groove 123, that is, the first groove 123 has only one side wall, which makes it easier for solder to flow into the first groove 123 during the welding process between the terminal assembly 100 and the corresponding printed circuit board. The width of the first protrusion 1222 in the second direction gradually decreases in the direction away from the first substrate 1221, that is, the side wall 1232 of the first groove 123 is inclined, and the included angle between the bottom wall 1231 and the side wall 1232 of the first groove 123 is an obtuse angle, that is, the included angle between the bottom wall 1231 and the side wall 1232 of the first groove 123 is greater than 90° and less than 180°. During the soldering process between the terminal assembly 100 and the corresponding printed circuit board, more solder can flow into the first groove 123 to further increase the soldering strength.

[0039] In this embodiment, by improving the shape of the first groove 123, the solder can flow into the first groove 123 more easily, and the increased volume of solder flowing into the first groove 123 is beneficial to further increase the welding strength between the terminal block and the corresponding printed circuit board.

[0040] As one implementation method, please refer to [link / reference]. Figure 2 and Figure 10The edge of the second welding portion 132 facing away from the insulator 11 has at least a partial second groove 133. Specifically, the side of the second welding portion 132 facing away from the insulator 11 is used to connect with the printed circuit board to realize the electrical connection between the terminal assembly 100 and the printed circuit board. That is, the edge of the second welding portion 132 on the side where it is welded to the printed circuit board is provided with the second groove 133. During the welding process between the terminal assembly 100 and the corresponding printed circuit board, the solder can flow into the second groove 133, which helps to increase the welding strength.

[0041] In this embodiment, by providing a second groove at the edge of the second welding portion of the connector, solder can flow into the second groove during the welding process between the terminal assembly and the corresponding printed circuit board, which helps to increase the welding strength.

[0042] In some implementations, please refer to [the relevant documentation]. Figure 2 and Figure 10 As shown, there are two second grooves 133. The two second grooves 133 are located on both sides of the second welding part 132 along the first direction. The two second grooves 133 extend continuously along the second direction. The first direction is perpendicular to the second direction.

[0043] In this embodiment, the two second grooves 133 extend continuously along the two sides of the second welding portion 132 in the second direction, which can increase the length of the second grooves 133 and further increase the welding strength between the terminal assembly 100 and the corresponding printed circuit board.

[0044] In some implementations, please refer to [the relevant documentation]. Figure 10As shown, the second welding portion 132 includes a second substrate 1321 and a second protrusion 1322 stacked sequentially along the thickness direction. The width of the second protrusion 1322 along the first direction is smaller than the width of the second substrate 1321 along the first direction. The side of the second substrate 1321 facing away from the insulator 11 forms the bottom wall 1331 of the second groove 133, that is, the portion of the second substrate 1321 facing away from the insulator 11 that is not covered by the second protrusion 1322 serves as the bottom wall 1331 of the second groove 133. The side of the second protrusion 1322 forms the side wall 1332 of the second groove 133, that is, the second groove 133 has only one side wall, which makes it easier for solder to flow into the second groove 133 during the welding process between the terminal assembly 100 and the corresponding printed circuit board. The width of the second protrusion 1322 in the first direction gradually decreases in the direction away from the second substrate 1321, that is, the side wall 1332 of the second groove 133 is inclined, and the included angle between the bottom wall 1331 and the side wall 1332 of the second groove 133 is an obtuse angle, that is, the included angle between the bottom wall 1331 and the side wall 1332 of the second groove 133 is greater than 90° and less than 180°. During the soldering process between the terminal assembly 100 and the corresponding printed circuit board, more solder can flow into the second groove 133 to further increase the soldering strength.

[0045] In this embodiment, by improving the shape of the second groove 133, the solder can flow into the second groove 133 more easily, and the increased volume of solder flowing into the second groove 133 is beneficial to further increase the soldering strength between the terminal block and the corresponding printed circuit board.

[0046] As one implementation method, please refer to Figures 4-8 as well as Figure 9 As shown, the first main body 121 includes a contact portion 1211, a first connecting portion 1212 and an elastic portion 1213 connected in sequence. The contact portion 1211 is suspended inside the receiving portion 112, the first connecting portion 1212 is fixed to the fixing portion 111, and the elastic portion 1213 extends out of the receiving portion 112 and is connected to the first welding portion 122.

[0047] The contact portion 1211 extends along the insertion direction, the first connecting portion 1212 extends along the insertion direction, the first welding portion 122 extends along the first direction, and the elastic portion 1213 extends by bending between the first connecting portion 1212 and the first welding portion 122.

[0048] The contact portion 1211 is used to contact the terminal of another terminal assembly. When the terminal assembly 100 is plugged into another terminal assembly, the contact portion 1211 and the terminal of the other terminal assembly are electrically connected. The first connecting portion 1212 is used to fix the terminal 12 to the fixing portion 111 of the insulator 11. The elastic portion 1213 makes the connection between the first welding portion 122 and the first connecting portion 1212 elastic. When the terminal assembly 100 moves in the plugging direction or in a first or second direction orthogonal to the plugging direction during use, the elastic deformation of the elastic portion 1213 can elastically absorb the movement of the insulator 11, which helps to maintain the relative stability of the terminal assembly 100.

[0049] In some implementations, please refer to Figure 4 , Figure 6 , Figure 7 as well as Figure 8 As shown, the fixing part 111 includes a fixing body part 1111, which includes a fixing bottom 1111a and a fixing side part 1111b extending from the outer periphery of the fixing bottom 1111a away from the first welding part 122. The fixing bottom 1111a away from the first welding part 122 and the fixing side part 1111b form a receiving part 112. The fixing bottom 1111a has a first fixing groove 1111c extending through the fixing bottom 1111a in the insertion direction, and the first connecting part 1212 is located in the first fixing groove 1111c.

[0050] In some implementations, please refer to [the relevant documentation]. Figure 4 , Figure 6 , Figure 7 , Figure 8 as well as Figure 10 As shown, the fixing part 111 also includes a fixing structure 1112 provided on the outer surface of the fixing main body part 1111. The fixing structure 1112 is formed with a second fixing groove 1112a that penetrates the fixing structure 1112 along the insertion direction. The second main body part 131 is located in the second fixing groove 1112a.

[0051] The second main body 131 extends along the insertion direction, the second welding part 132 extends along the second direction, and the second welding part 132 is formed by bending along one side of the second main body 131.

[0052] One embodiment of this application also provides a connector that includes the terminal assembly 100 described above.

[0053] The connector may also include a second terminal assembly, which includes terminals. When the terminal assembly 100 and the second terminal assembly are connected in the insertion direction, the wiring terminals 12 in the terminal assembly 100 contact the terminals of the second terminal assembly through the contact portion 1211 to achieve electrical connection.

[0054] The technical features of 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.

[0055] The above embodiments merely illustrate preferred implementations 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 scope of protection of this application. Therefore, the scope of protection of this patent application should be determined by the appended claims.

Claims

1. A terminal assembly, characterized in that, include: An insulator, comprising a fixing portion and a receiving portion; The terminal block includes a first main body portion disposed on the fixing portion and at least partially accommodated in the accommodating portion, and a first welding portion connected to one end of the first main body portion extending out of the accommodating portion, the first welding portion extending out of the accommodating portion, and at least partially forming a first groove on the edge of the first welding portion facing away from the insulator. In addition, the connector located outside the receiving portion includes a second main body portion disposed on the fixing portion and a second welding portion connected to one end of the second main body portion.

2. The terminal assembly according to claim 1, characterized in that, The two first grooves extend continuously along a first direction on both sides of the first welded portion along a second direction, wherein the first direction is perpendicular to the second direction.

3. The terminal assembly according to claim 2, characterized in that, The first welded portion includes a first substrate and a first protrusion stacked sequentially along the thickness direction. The width of the first protrusion along the second direction is smaller than the width of the first substrate along the second direction. The side of the first substrate facing away from the insulator forms the bottom wall of the first groove. The side of the first protrusion forms the side wall of the first groove. The width of the first protrusion in the second direction gradually decreases in the direction away from the first substrate.

4. The terminal assembly according to any one of claims 1 to 3, characterized in that, The edge of the second weld portion facing away from the insulator has at least a partial second groove.

5. The terminal assembly according to claim 4, characterized in that, The two second grooves extend continuously along the second direction on both sides of the second welded portion along the first direction, and the first direction is perpendicular to the second direction.

6. The terminal assembly according to claim 5, characterized in that, The second welded portion includes a second substrate and a second protrusion stacked sequentially along the thickness direction. The width of the second protrusion along the first direction is smaller than the width of the second substrate along the first direction. The side of the second substrate facing away from the insulator forms the bottom wall of the second groove, and the side of the second protrusion forms the side wall of the second groove. The width of the second protrusion in the first direction gradually decreases in the direction away from the second substrate.

7. The terminal assembly according to claim 1, characterized in that, The first main body includes a contact portion, a first connecting portion, and an elastic portion connected in sequence. The contact portion is suspended inside the receiving portion, the first connecting portion is fixed to the fixing portion, and the elastic portion extends out of the receiving portion and is connected to the first welding portion.

8. The terminal assembly according to claim 7, characterized in that, The fixing part includes a fixing body part, the fixing body part includes a fixing bottom and a fixing side part extending from the outer periphery of the fixing bottom away from the first welding part. The fixing bottom is formed with a first fixing groove that penetrates the fixing bottom along the insertion direction, and the first connecting part is located in the first fixing groove.

9. The terminal assembly according to claim 8, characterized in that, The fixing part further includes a fixing structure disposed on the outer surface of the fixing main body, the fixing structure having a second fixing groove extending through the fixing structure along the insertion direction, the second main body being located in the second fixing groove.

10. A connector, characterized in that, It includes the terminal assembly as described in any one of claims 1 to 9.

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