Electrical connection terminal and electrical connector

Abstract

The utility model relates to the field of electric connector discloses an electric connection terminal and electric connector, including installation portion, hold portion and cooperation portion who distribute along the plug -in direction in proper order, the cooperation portion includes first elastic resistance arm and with the first elastic resistance arm misplacement distribution's second elastic resistance arm. The utility model discloses electric connection terminal and electric connector through setting first elastic resistance arm and second elastic resistance arm, to be able to realize double resistance and limit to the object of being resisted when the electric connection terminal is inserted on corresponding plastic shell, promotes the reliability and stability of conduction.

Description

Technical Field

[0001] This utility model relates to the field of electrical connectors, and in particular to an electrical connection terminal and an electrical connector. Background Technology

[0002] An electrical connector is a key component used to connect electrical devices. Its core function is to transmit current, signals, or data, ensuring reliable communication and energy exchange between components. It typically consists of a plug, a socket, and internal conductors, establishing a conductive path through tight contacts and using insulating materials to isolate different circuits. Electrical connectors are widely used in electronic equipment, communication systems, industrial machinery, automotive electronics, and aerospace, possessing characteristics such as waterproofing, dustproofing, vibration resistance, and electromagnetic interference resistance to adapt to complex environments.

[0003] Existing electrical connector structures typically include an insulating shell and conductive terminals inserted into the insulating shell. Some connectors have conductive terminals in a strip-like structure. To simultaneously allow for a tight fit within the insulating shell and a flexible mating engagement with the complementary terminals of a complementary connector, the conductive terminal is usually bent once, with the bent portion pressing against the inner wall of the insulating shell. Simultaneously, the bent portion facilitates the insertion of the complementary terminal between the conductive terminal and the inner wall of the insulating shell, thus achieving a conductive connection between the conductive and complementary terminals. However, relying solely on this functional bending structure, the conductive terminal is prone to loosening under slight external forces, resulting in poor connection stability between the conductive and complementary terminals. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide an electrical connection terminal and an electrical connector to solve the problem of poor connection stability between conductive terminals and complementary terminals.

[0005] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: providing an electrical connection terminal, comprising a mounting portion, a retaining portion, and a mating portion arranged sequentially along the insertion direction, wherein the mating portion includes a first elastic abutment arm and a second elastic abutment arm that is offset from the first elastic abutment arm.

[0006] Furthermore, the first elastic abutment arm and the second elastic abutment arm are misaligned in the insertion direction.

[0007] Furthermore, the first elastic support arm is formed by bending to form a first support position for elastically pressing against the object being pressed, and the second elastic support arm is formed by bending to form a second support position that is offset from the first support position and is used for elastically pressing against the object being pressed.

[0008] Furthermore, the second elastic abutment arm is integrally formed on the first elastic abutment arm and faces the object being abutted relative to the first elastic abutment arm.

[0009] Furthermore, the first elastic abutment arm includes a first section extending from the holding portion away from the mounting portion along a plugging direction and a second section extending from the first section toward the side away from the mounting portion, and the side of the second section away from the first section is inclined relative to the first section toward the object being abutted, and the first abutment position is formed on the second section.

[0010] Furthermore, the second section has a first free section at the end away from the first section, and the middle of the first free section is curved and arched toward the object being resisted to form the first resisting position.

[0011] Furthermore, the second elastic abutment arm includes a third section extending from the first section in the insertion direction toward the side away from the mounting portion and a fourth section extending from the third section toward the side away from the mounting portion, and the second abutment position is formed on the fourth section.

[0012] Furthermore, the fourth section has a second free section at the end away from the third section, and the middle of the second free section is curved and arched towards the object being resisted to form at least two curved segments, one of which is the curved segment away from the third section and is configured as the second resisting position.

[0013] Furthermore, a cavity is formed at the middle of the first elastic abutment arm, extending toward the object being abutted. The second elastic abutment arm is located within the cavity, and there is a space between the inner wall of the cavity and the second elastic abutment arm.

[0014] This utility model also provides an electrical connector including an insulating shell, an electrical connection terminal inserted into the insulating shell, and a grounding plate inserted into the insulating shell; the insulating shell has a insertion cavity along the insertion direction, and the two ends of the insertion cavity are respectively opposite to the insulating shell to form a first socket for the holding part and the mating part to pass through and a second socket for the complementary terminal to pass through, and the mounting part is located outside the first socket.

[0015] The present invention provides an electrical connection terminal and an electrical connector, which have at least the following advantages: by providing a first elastic support arm and a second elastic support arm, the present invention can achieve double support and limitation on the object being supported when the electrical connection terminal is inserted into the corresponding plastic shell, thereby improving the reliability and stability of conduction. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the electrical connection terminal of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the electrical connector of this utility model;

[0019] Figure 3 This is a side sectional view of the electrical connector of this utility model;

[0020] Figure 4 This is an exploded view of the electrical connector of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the second shell of this utility model;

[0022] Figure 6 This is a schematic diagram of the second shell of the present invention (from another angle);

[0023] Figure 7 This is a schematic diagram of the structure of the first housing of this utility model;

[0024] Figure 8 This is a schematic diagram of the structure of the first housing of this utility model (from another angle).

[0025] The meanings of the labels in the attached diagram are as follows:

[0026] Insulating housing 1, insertion cavity 11, first insertion port 12, second insertion port 13, first housing 14, first surface 141, second surface 142, first cavity 143, built-in protrusion 144, recessed structure 1441, first guide protrusion 145, second housing 15, base 151, inner insertion portion 152, third surface 153, fourth surface 154, second cavity 155, first guide groove 156, stepped portion 157, positioning protrusion 158, slot 16, wide slot 161, narrow slot 162. Grounding piece 2, wide part 21, narrow part 22, electrical connection terminal 3, mounting part 31, holding part 32, through hole 321, L-shaped notch 322, clearance groove 323, mating part 33, first elastic support arm 33a, second elastic support arm 33b, first support position 331, second support position 332, first section 333, second section 334, first free section 335, third section 336, fourth section 337, clearance cavity 338, second free section 3391, curved section 3392. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] Please see Figures 1 to 8 The present invention provides an electrical connector comprising an insulating housing 1 made of insulating material, a grounding plate 2 inserted into the insulating housing 1, and an electrical connection terminal 3 inserted into the insulating housing 1. The insulating housing 1 is used to protect the electrical connection terminal 3 and the grounding plate 2. The grounding plate 2 is used to stabilize the voltage and current, ensuring the stability and reliability of the entire connector. The electrical connection terminal 3 is used to make conductive connections with cables and objects being contacted (such as complementary terminals), thereby realizing the transmission of electrical signals.

[0029] Please see Figures 2 to 8 In one embodiment, the insulating housing 1 is integrally injection molded and is referred to as a strip. An insertion cavity 11 is formed on the insulating housing 1 along the insertion direction corresponding to the electrical connection terminal 3 (hereinafter referred to as the "insertion direction"). The two ends of the insertion cavity 11 (i.e., the two sides of the insertion cavity 11 along the insertion direction) are respectively opposite to the two sides penetrating the insulating housing 1, so that a first insertion port 12 and a second insertion port 13 are formed on the two sides of the insulating housing 1, respectively. The first insertion port 12 is adapted to the electrical connection terminal 3 for the power connection terminal 3 to pass through so that the electrical connection terminal 3 is inserted into the insertion cavity 11. The second insertion port 13 is adapted to the object being pressed for the object to pass through.

[0030] In another embodiment, the insulating housing 1 includes a first housing 14 and a second housing 15, which are inserted and sleeved together to facilitate the processing and disassembly of the insulating housing 1. Both the first housing 14 and the second housing 15 are elongated structures and are mutually compatible. The first housing 14 has a first surface 141 and a second surface 142 on its two sides along the insertion direction. A first cavity 143 is formed on the first surface 141 corresponding to the outer contour of the second housing 15, allowing the second housing 15 to be inserted along the insertion direction, facilitating the sleeve connection between the first housing 14 and the second housing 15. A built-in protrusion 144 protrudes from the inner wall of the first cavity 143 on the side closest to and opposite the second surface 142 along the insertion direction. The built-in protrusion 144 protrudes towards the first surface 141 along the insertion direction, and the end face of the built-in protrusion 144 away from the second surface 142 is recessed within the first cavity 143 relative to the first surface 141. A plurality of first guide protrusions 145 are arranged at intervals around the inner wall of the first cavity 143, and each first guide protrusion 145 is arranged along the insertion direction.

[0031] In this embodiment, the second housing 15 has a base 151 and an inner insertion portion 152 extending from the base 151 toward the first housing 14 in the insertion direction. The inner insertion portion 152 is consistent with and adapted to the shape of the first cavity 143 so that the inner insertion portion 152 can be inserted into the first cavity 143 in the insertion direction, thereby allowing the first housing 14 to be fitted onto the second housing 15. The side of the inner insertion portion 152 facing away from the base 151 is defined as a third surface 153, and the side of the base 151 facing away from the inner insertion portion 152 is defined as a fourth surface 154. A second cavity 155 is recessed on the third surface 153 at a position corresponding to the inner protrusion 144, so that when the inner insertion portion 152 is inserted into the first cavity 143, the inner protrusion 144 is inserted into the second cavity 155, thereby improving the stability of the bonding force between the first housing 14 and the second housing 15. On the outer wall of the built-in protrusion 144, at the position corresponding to the first guide protrusion 145, a first guide groove 156 is recessed. The first guide groove 156 is open on the side away from the inner insertion part 152, and the first guide groove 156 is open along the insertion direction towards the first housing 14, that is, on the side away from the base 151, so that the first guide protrusion 145 and the first guide groove 156 slide in engagement during the process of the inner insertion part 152 being inserted into the first cavity 143.

[0032] In this embodiment, in order to better limit the insertion depth of the second housing 15, a stepped portion 157 is formed on the outer walls of both sides of the base 151, extending backward along the length direction of the second housing 15. The stepped portion 157 protrudes relative to the inner insertion portion 152, so that when the base 151 is inserted into the first cavity 143, the first housing 14 abuts against the stepped portion 157.

[0033] A first socket 12 is provided on the fourth surface 154 of the second housing 15, corresponding to the position of the second cavity 155, along the insertion direction. The first socket 12 communicates with the second cavity 155. The first socket 12 is adapted to accommodate the electrical connection terminal 3, allowing the terminal 3 to pass through. In this embodiment, a insertion cavity 11 is formed between the inner wall of the built-in protrusion 144 and the inner wall of the second cavity 155, directly opposite each other. The insertion cavity 11 is directly opposite to and communicates with the first socket 12 along the insertion direction. A second socket 13 is provided on the second surface 142 of the first housing 14, corresponding to the insertion cavity 11, along the insertion direction, communicating with the insertion cavity 11. The second socket 13 is located on the periphery of the built-in protrusion 144 and is not affected by it. The second socket 13 is adapted to accommodate the object being pressed, allowing the object to be inserted into it. To limit the insertion depth of the object being abutted, a recessed structure 1441 forming the insertion cavity 11 in the built-in protrusion 144 has a retaining edge on the side of the recessed structure 1441 near the first insertion port 12 along the insertion direction, making the recessed structure 1441 U-shaped and open towards the second insertion port 13. Two positioning protrusions 158 are provided on the side of the second housing 15 facing away from the first housing 14 along the insertion direction. The two positioning protrusions 158 are used to position the insulating housing 1 when it is inserted and engaged with the circuit board or other connection structures.

[0034] To facilitate the installation of the grounding piece 2, slots 16 are provided on the base 151 and on the stepped portions 157 on both sides, extending through the stepped portions 157 in the insertion direction. (See also...) Figure 2 , Figures 4 to 6 The grounding plate 2 has a wider portion 21 and a narrower portion 22. Corresponding to the wider portion 21 and the narrower portion 22, the slot 16 includes a wide slot 161 adapted to the wider portion 21 and a narrow slot 162 adapted to the narrower portion 22. The wide slot 161 and the narrow slot 162 face away from each other, with the wider portion 21 inserted into the wide slot 161 and the narrower slot 162 inserted into the narrower slot 162. A bent lug is formed on the side of the narrower portion 22 facing away from the wider portion 21 to abut against the stepped portion 157, facilitating connection to a circuit board or other connection structure. It should be noted that either the wider portion 21 or the narrower portion 22 can be any existing grounding plate 2.

[0035] Please see Figures 1 to 4An electrical connection terminal of this utility model includes a mounting part 31, a retaining part 32, and a mating part 33 arranged sequentially along the insertion direction. The mating part 33 and the retaining part 32 can both pass through the first socket 12 to extend into the insertion cavity 11. The retaining part 32 is used to tightly fit with the insertion cavity 11 to restrict the movement of the electrical connection terminal 3. The mounting part 31 is used to weld to the circuit board or connect to other conductive materials to achieve electrical conduction. The retaining part 32 is used for positioning and limiting between itself and the insulating shell 1. The mating part 33 is used to elastically abut against the object to achieve the transmission of electrical signals.

[0036] In this embodiment, the mounting part 31, the retaining part 32, and the mating part 33 are all integrally formed and formed by stamping or other forming methods. The retaining part 32 has the largest dimension and the widest width. A through hole 321 is formed in the middle of the retaining part 32 along its thickness direction. To facilitate processing, a groove is formed on the side of the through hole 321, and the shape of the corresponding punch is adapted to it to enhance the punch's strength. To limit the insertion depth of the retaining part 32 and control the insertion depth of the mating part 33, L-shaped notches 322 are formed on both sides of the retaining part 32 along its width direction near the mating part 33. The two sides of the retaining part 32 also form opposing, protruding abutment edges relative to the two L-shaped notches 322. On the side of the insertion cavity 11 near the first insertion port 12, there is a limiting groove adapted to the abutment edge. Between the limiting groove and the insertion cavity 11, there is a stepped surface adapted to the L-shaped notch 322. So, after the abutment edge is inserted into the limiting groove, the stepped surface and the L-shaped notch 322 adapt to limit the insertion depth of the retaining part 32 and the mating part 33, so that the retaining part 32 can no longer move into the insertion cavity 11. In order to reduce the hard interference of the abutment edge, a relief groove 323 is formed between the side of the abutment edge near the mounting part 31 and the mounting part 31, which also facilitates the stamping and forming of the mounting part 31.

[0037] In this embodiment, the mounting portion 31 extends along the insertion direction from the side of the retaining portion 32 facing away from the mating portion 33, then bends and continues to extend along the thickness direction to facilitate connection and mating with the connected object, or for welding, etc. In another embodiment, the mounting portion 31 may extend in a straight line along the insertion direction away from the mating portion 33. One mounting portion 31 may be provided; in another embodiment, two or more mounting portions 31 may be spaced apart along the width direction, with each mounting portion 31 located between two clearance grooves 323.

[0038] In this embodiment, the mating part 33 includes a first elastic abutment arm 33a and a second elastic abutment arm 33b that is offset from the first elastic abutment arm 33a. The first elastic abutment arm 33a is used to elastically press against the object being pressed, and the second elastic abutment arm 33b is used to elastically press against the object being pressed. The cooperation between the second elastic abutment arm 33a and the first elastic abutment arm 33b and the holding part 32 is used to directionally cooperate along the thickness direction to press against the insulating shell 1, thereby improving the connection reliability between the electrical connection terminal 3, the object being pressed, and the insulating shell 1.

[0039] The first elastic abutment arm 33a and the second elastic abutment arm 33b are staggered to abut against the object at different positions. The first elastic abutment arm 33a and the second elastic abutment arm 33b can be staggered in the insertion direction, in the width direction, or simultaneously in both directions, but they remain flush in the thickness direction to jointly abut against the object. The first elastic abutment arm 33a has a first abutment position 331 formed by bending for elastically abutting against the object, and the second elastic abutment arm 33b has a second abutment position 332 formed by bending, staggered from the first abutment position 331 and also for elastically abutting against the object. In this embodiment, the second elastic abutment arm 33b is integrally formed on the first elastic abutment arm 33a and faces the object relative to the first elastic abutment arm 33a, thereby reducing the overall width of the electrical connection terminal 3. In another embodiment, the first elastic abutment arm 33a and the second elastic abutment arm 33b may be arranged side by side in the width direction.

[0040] The first elastic support arm 33a includes a first section 333 extending from the side of the holding portion 32 away from the mounting portion 31 along the insertion direction and a second section 334 extending from the first section 333 toward the side away from the mounting portion 31. The side of the second section 334 away from the first section 333 is inclined in the thickness direction toward the built-in protrusion 144 on the side corresponding to the object being supported, and is inclined relative to the first section 333. The first support position 331 is formed on the second section 334. The second section 334 is bent along the thickness direction at the end away from the first section 333, forming a first free section 335. The first free section 335 is generally arc-shaped. Therefore, the middle part of the first free section 335 is curved and arched towards the object being pressed to form a first abutting position 331. In use, the side of the curved first free section 335 away from the first section 333 contacts the object being pressed through the first abutting position 331 and presses the object being pressed against the built-in protrusion 144.

[0041] The second elastic abutment arm 33b includes a third section 336 extending from the first section 333 along the insertion direction toward the side away from the mounting portion 31, and a fourth section 337 extending from the third section 336 toward the side away from the mounting portion 31. A second abutment position 332 is formed on the fourth section 337. Specifically, in order to facilitate the integral molding of the second elastic abutment arm 33b and the first elastic abutment arm 33a, a cavity 338 is formed at the middle position of the first elastic abutment arm 33a, extending toward the side of the object being abutted. The cavity 338 extends from the first section 333 to the second section 334 until it approaches the first free section 335 but does not extend onto the first free section 335. The cavity 338 extends through the thickness direction of the electrical connection terminal 3. The second elastic abutment arm 33b is located within the cavity 338 and is integrally connected at one end to the side of the cavity 338 near the retaining part 32. There is a gap between the inner wall of the cavity 338 and the second elastic abutment arm 33b, allowing the second elastic abutment arm 33b to independently engage with the object being abutted relative to the first elastic abutment arm 33a, thereby achieving dual limiting and communication with the object being abutted. The fourth section 337 has a second free section 3391 at its end away from the third section 336. The middle of the second free section 3391 curves upwards towards the object being abutted, forming at least two curved segments 3392. One of these curved segments 3392, away from the third section 336, is configured as the second abutment position 332. The arrangement of the second free section 3391 and the second abutment position 332 is similar to or the same as the arrangement of the first free section 335 and the first abutment position 331, and will not be described further here.

[0042] The working method of one embodiment of the electrical connection terminal and electrical connector of this utility model is as follows: After the first housing 14 and the second housing 15 are installed, the mating part 33 of the electrical connection terminal 3 is oriented towards the first socket 12 and then passed through the first socket 12 along the insertion direction until the mating part 33 is inserted into the insertion cavity 11 and the retaining part 32 is inserted into the insertion cavity 11 corresponding to the limiting groove. When the complementary connector is inserted and mated with it, the complementary terminal is inserted into the second socket 13 and passes between the built-in protrusion 144 and the mating part 33 by sequentially pressing and mating with the first free section 335 and the second free section 3391. Until the first abutting position 331 and the second abutting position 332 are elastically pressed against the complementary terminal by the elastic properties of the material (such as copper) of the electrical connection terminal 3, the retaining part 32 is affected and pressed against the insertion cavity 11, thereby ensuring the installation stability of the electrical connection terminal 3 and the connection reliability of the complementary terminal.

[0043] Compared with the prior art, the electrical connection terminal and connector of this utility model improve the connection stability with the insulating housing 1 and the mating stability and reliability with the complementary terminal.

Claims

1. An electrical connection terminal, comprising a mounting portion, a retaining portion, and a mating portion arranged sequentially along the insertion direction, characterized in that: The mating part includes a first elastic abutment arm and a second elastic abutment arm that is offset from the first elastic abutment arm.

2. The electrical connection terminal as described in claim 1, characterized in that: The first elastic abutment arm and the second elastic abutment arm are staggered in the insertion direction.

3. The electrical connection terminal as described in claim 1, characterized in that: The first elastic support arm is formed by bending to form a first support position for elastically pressing against the object being pressed, and the second elastic support arm is formed by bending to form a second support position that is offset from the first support position and is used for elastically pressing against the object being pressed.

4. The electrical connection terminal as described in claim 3, characterized in that: The second elastic support arm is integrally formed on the first elastic support arm and faces the object being supported relative to the first elastic support arm.

5. The electrical connection terminal as described in claim 4, characterized in that: The first elastic abutment arm includes a first section extending from the side of the holding portion away from the mounting portion along a plugging direction and a second section extending from the first section toward the side away from the mounting portion, and the side of the second section away from the first section is inclined relative to the first section toward the object being abutted, and the first abutment position is formed on the second section.

6. The electrical connection terminal as described in claim 5, characterized in that: The second section has a first free section at the end away from the first section, and the middle of the first free section is curved and arched toward the object being resisted to form the first resisting position.

7. The electrical connection terminal as described in claim 5, characterized in that: The second elastic abutment arm includes a third section extending from the first section in the insertion direction toward the side away from the mounting portion and a fourth section extending from the third section toward the side away from the mounting portion, and the second abutment position is formed on the fourth section.

8. The electrical connection terminal as described in claim 7, characterized in that: The fourth section has a second free section at the end away from the third section. The middle of the second free section is curved and arched towards the object being resisted, forming at least two curved segments. One of the curved segments away from the third section is configured as the second resisting position.

9. The electrical connection terminal as described in any one of claims 4 to 8, characterized in that: A cavity is formed at the middle of the first elastic abutment arm, extending toward the object being abutted. The second elastic abutment arm is located inside the cavity, and there is a gap between the inner wall of the cavity and the second elastic abutment arm.

10. An electrical connector, characterized in that: The device includes an insulating housing, an electrical connection terminal as described in any one of claims 1 to 8 inserted into the insulating housing, and a grounding plate inserted into the insulating housing; the insulating housing has a insertion cavity along the insertion direction, and the two ends of the insertion cavity are respectively opposite to the insulating housing to form a first socket for the holding part and the mating part to pass through and a second socket for the complementary terminal to pass through, and the mounting part is located outside the first socket.

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