Highly elastic terminal and solderless connector

Abstract

The utility model relates to the field of connector especially relates to high elasticity terminal and exempt from welding type connector. High elasticity terminal, include: contact end and connecting end, the contact end is used for with PCB board electricity is connected, and it includes several intermediate outward protruding, both ends bend and extend in the same direction cambered surface spring piece, several spring pieces are arranged in succession and enclose the rugby structure that the cross section is round, both ends of contact end all are equipped with the limit structure for with several spring pieces are bound in a range to increase the elasticity of spring piece, one end of connecting end is fixed with contact end one end, the other end of connecting end is used for fixed wire, and the terminal adopts the round structure, can effectively promote the elasticity of terminal, is applicable to directly with PCB board pressure type connection. Exempt from welding type connector, including high elasticity terminal and wire end casing, wire end casing is seted up with the through -hole, and high elasticity terminal is worn in the through -hole and is connected with PCB board electricity, and the bottom of wire end casing is equipped with several buckles for with PCB board joint, prevent the connector from separating from PCB board.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and in particular to a highly elastic terminal and a solderless connector. Background Technology

[0002] With the development of industrial robots and the automotive industry, high reliability, lightweight design, and miniaturization have become development trends. Consequently, the performance requirements for corresponding components are also increasing. Connectors, as important electrical components, must meet the high standards of industrial robots and automobiles in terms of adaptability to mechanical vibration, miniaturization, and low cost.

[0003] Currently, connectors on the market connect to PCBs using board-end connectors, which involve connecting the wire-end connector to the PCB. This method has many components, a complex structure, and high cost. Furthermore, under the current maximum permissible size conditions, the rated voltage and withstand voltage, among other electrical performance requirements, cannot meet higher standards. Therefore, there is an urgent need to develop a miniaturized, highly reliable connector. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a highly flexible terminal and a solderless connector.

[0005] A highly elastic terminal, suitable for direct pressure-type connection with a PCB, includes: a contact end and a connecting end; the contact end is used for electrical connection with the PCB board, and includes several arc-shaped spring pieces that protrude outward from the middle and bend in the same direction at both ends, the several spring pieces are arranged sequentially to form a rugby ball structure with a circular cross-section, and both ends of the contact end are provided with limiting structures to bind the several spring pieces within a range to increase the elasticity of the spring pieces; one end of the connecting end is fixedly connected to one end of the contact end, and the other end of the connecting end is used to fix a wire.

[0006] This application features a limiting structure that binds the ball-shaped spring within a fixed range, thereby improving terminal elasticity and increasing the reliability of terminal PCB contact. It is suitable for direct pressure-type connection with the PCB.

[0007] Furthermore, the connection end includes a fixed end and a guiding end. The guiding end is fixedly connected to the contact end and is used to guide the guide wire to connect to the contact end. The fixed end is a trumpet shape with openings at both ends and is used to fix the wire.

[0008] Specifically, the guide end is a hollow cylindrical structure, which makes it easier to connect the guide wire to the contact end, and the fixed end is a trumpet shape with openings at both ends, which can be used for different types of wires.

[0009] The connection end also includes a foolproof part to prevent the terminal from rotating inside the plastic.

[0010] Furthermore, the anti-fooling part is a side piece extending outward from the edge of the connecting end, located between the fixed end and the guide end.

[0011] A solderless connector includes a highly elastic terminal and a wire end housing. The wire end housing has a through hole, through which the highly elastic terminal passes and is electrically connected to a PCB board. The bottom of the wire end housing has several clips for engaging with the PCB board to prevent the connector from detaching from the PCB board.

[0012] Furthermore, the bottom of the wire end housing is provided with a partition to separate adjacent terminals, thereby improving the electrical performance of the connector.

[0013] Furthermore, the wire end housing is provided with a limiting block, which engages with the terminal connection end to limit the position of the terminal in the wire end housing.

[0014] Furthermore, the wire end housing has a limiting hole on its side, and the limiting block is embedded in the limiting hole on the side away from the terminal.

[0015] Furthermore, the limiting block includes a snap-fit ​​end and an embedding end, the snap-fit ​​end and the embedding end are arranged vertically, one end of the snap-fit ​​end is snapped into the terminal, and the embedding end is embedded in the limiting hole.

[0016] Furthermore, a receiving groove is provided on one side of the wire end housing. The receiving groove is connected to the through hole and the direction of the receiving groove is perpendicular to the direction of the through hole, for accommodating the wire.

[0017] The beneficial effects of this utility model are as follows:

[0018] (1) The terminals adopt a rounded structure, which can effectively improve the elasticity of the terminals and is suitable for direct pressure connection with PCB board;

[0019] (2) Solderless connectors connect the wire end connectors directly to the PCB. They have fewer parts, simpler structure, and lower cost. Moreover, under the current maximum allowable size conditions, the rated voltage and withstand voltage and other electrical performance can meet higher standard requirements. Attached Figure Description

[0020] Figure 1 A schematic diagram of a highly flexible terminal provided in an embodiment of this application;

[0021] Figure 2 A schematic diagram of a traditional connector;

[0022] Figure 3 An exploded view of the solderless connector provided in the embodiments of this application;

[0023] Figure 4 This is a schematic diagram of a solderless connector provided in an embodiment of this application;

[0024] Figure 5 for Figure 4 A sectional view;

[0025] Figure 6 The front view is a schematic diagram of a solderless connector provided in an embodiment of this application.

[0026] In the figure: terminal 1, contact end 101, connection end 102, fixing end 1021, guide end 1022, limiting structure 103, foolproof part 104, wire end housing 2, PCB board 3, partition 201, limiting block 202, snap-fit ​​end 2021, embedding end 2022, limiting hole 203, receiving groove 204, buckle 205. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection 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 utility model according to the specific circumstances.

[0030] Please see Figure 1-6A highly elastic terminal, suitable for direct pressure-type connection with a PCB, includes: a contact end 101 and a connecting end 102; the contact end 101 is used for electrical connection with the PCB board 3, and includes several arc-shaped spring pieces that protrude outward from the middle and bend in the same direction at both ends, the several spring pieces are arranged in sequence to form a rugby ball structure with a circular cross-section, and both ends of the contact end 101 are provided with limiting structures 103 to bind the several spring pieces within a range to increase the elasticity of the spring pieces; one end of the connecting end 102 is fixedly connected to one end of the contact end 101, and the other end of the connecting end 102 is used to fix the wire.

[0031] This application sets a limiting structure 103 to bind the ball-shaped spring within a fixed range, which can improve the elasticity of terminal 1 and increase the PCB contact reliability of terminal 1, and is suitable for direct pressure connection with PCB.

[0032] The connection end 102 includes a fixed end 1021 and a guide end 1022. The guide end 1022 is fixedly connected to the contact end 101 and is used to guide the guide wire to connect to the contact end 101. The fixed end 1021 is a trumpet shape with openings at both ends and is used to fix the wire.

[0033] Specifically, the guide end 1022 is a hollow cylindrical structure, which makes it easier to connect the guide wire to the contact end 101. The fixed end 1021 is a trumpet shape with openings at both ends, which can be used for different types of wires.

[0034] The connection end 102 also includes a foolproof part 104 to prevent the terminal 1 from rotating inside the plastic.

[0035] In this embodiment, the anti-foolproof part 104 is a side piece extending outward from the edge of the connecting end 102, located between the fixed end 1021 and the guiding end 1022.

[0036] A solderless connector includes a high-elasticity terminal 1 and a wire end housing 2. The wire end housing 2 has a through hole, and the high-elasticity terminal 1 passes through the through hole and is electrically connected to a PCB board 3. The bottom of the wire end housing 2 is provided with several buckles 205 for engaging with the PCB board 3 to prevent the connector from detaching from the PCB board 3.

[0037] The bottom of the wire end housing 2 is provided with a partition 201 to separate adjacent terminals 1 in order to improve the electrical performance of the connector.

[0038] The wire end housing 2 is provided with a limiting block 202, which is engaged with the terminal 1 connection end 102 to limit the position of the terminal 1 in the wire end housing 2.

[0039] In this embodiment, specifically, the anti-foolproof part 104 consists of two opposing side pieces on the side plate extending outward from the edge of the connecting end 102, and one end of the limiting block 202 is sandwiched between the two side pieces.

[0040] The wire end housing 2 has a limiting hole 203 on its side end, and the limiting block 202 is embedded in the limiting hole 203 on the side away from the terminal 1.

[0041] The limiting block 202 includes a snap-fit ​​end 2021 and an embedding end 2022. The snap-fit ​​end 2021 and the embedding end 2022 are arranged vertically. One end of the snap-fit ​​end 2021 is sandwiched between two side pieces, and the embedding end 2022 is embedded in the limiting hole 203.

[0042] The wire end housing 2 has a receiving groove 204 on one side. The receiving groove 204 is connected to the through hole and the direction of the receiving groove 204 is perpendicular to the direction of the through hole, and is used to accommodate the wire.

[0043] Compared with the prior art, the beneficial effects of the embodiments of this application are as follows:

[0044] (1) Terminal 1 adopts a rounded structure, which can effectively improve the elasticity of terminal 1 and is suitable for direct pressure connection with PCB board 3;

[0045] (2) Solderless connectors connect the wire end connectors directly to the PCB. They have fewer parts, simpler structure, and lower cost. Moreover, under the current maximum allowable size conditions, the rated voltage and withstand voltage and other electrical performance can meet higher standard requirements.

[0046] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. A highly elastic terminal, suitable for direct pressure-type connection with a PCB, characterized in that, include: The contact end and the connecting end; the contact end is used for electrical connection with the PCB board, and includes several arc-shaped spring pieces that protrude outward from the middle and bend and extend in the same direction at both ends. The several spring pieces are arranged in sequence to form a rugby ball structure with a circular cross-section. Both ends of the contact end are provided with limiting structures to bind the several spring pieces within a range to increase the elasticity of the spring pieces; one end of the connecting end is fixedly connected to one end of the contact end, and the other end of the connecting end is used to fix the wire.

2. The highly elastic terminal according to claim 1, characterized in that: The connection end includes a fixed end and a guide end. The guide end is fixedly connected to the contact end and is used to guide the guide wire to connect to the contact end. The fixed end is a trumpet shape with openings at both ends and is used to fix the wire.

3. A highly elastic terminal according to claim 2, characterized in that: The connection end also includes a foolproof part to prevent the terminal from rotating inside the plastic.

4. A highly elastic terminal according to claim 3, characterized in that: The anti-fooling part is a side piece extending outward from the edge of the connecting end, located between the fixed end and the guide end.

5. A solderless connector, characterized in that: Includes the high elasticity terminal and wire end housing as described in any of claims 1-4, wherein the wire end housing has a through hole, the high elasticity terminal passes through the through hole and is electrically connected to the PCB board, and the bottom of the wire end housing has several buckles for engaging with the PCB board to prevent the connector from detaching from the PCB board.

6. A solderless connector according to claim 5, characterized in that: The bottom of the wire end housing is provided with a partition to separate adjacent terminals in order to improve the electrical performance of the connector.

7. A solderless connector according to claim 6, characterized in that: The wire end housing is provided with a limiting block, which is engaged with the terminal connection end to limit the position of the terminal in the wire end housing.

8. A solderless connector according to claim 7, characterized in that: The wire end housing has a limiting hole on its side, and the limiting block is embedded in the limiting hole on the side away from the terminal.

9. A solderless connector according to claim 8, characterized in that: The limiting block includes a snap-fit ​​end and an embedding end, which are arranged vertically. One end of the snap-fit ​​end is snapped into the terminal, and the embedding end is embedded in the limiting hole.

10. A solderless connector according to claim 5, characterized in that: The wire end housing has a receiving groove on one side, which is connected to the through hole and is arranged perpendicular to the direction of the through hole, for accommodating the wire.

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