High-stability connector terminal

Abstract

The utility model belongs to the technical field of connectors, in particular to a high-stability connector terminal, which comprises a male terminal and a female terminal, and the connecting end of the male terminal and the inserting end of the female terminal are electrically connected through the elastic matching of a first bending part at the top end and a second bending part at the bottom end. The two bending parts are designed to be in an arc shape and are bent towards the interior of the insertion end, the effective contact area is increased through the staggered contact faces, the contact resistance is reduced, and the inclined chamfers and the arc-shaped grooves at the inlets form a double-guiding system, so that through the innovative double-section type elastic contact structure, the connection stability is improved, and the service life of the connector is prolonged. The connector is suitable for scenes such as new energy automobiles and rail transit with strict reliability requirements, and has the remarkable advantages of stable connection, efficient conduction, convenient operation and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of connector, specifically a high stability connector terminal. BACKGROUND

[0002] The connector terminal is the core element for realizing the reliable connection of the electrical system, and is widely used in the fields of industrial equipment, electronic devices and aerospace.

[0003] The existing connector terminal is mainly composed of the following parts: male terminal, female terminal, insulating shell, pressure contact claw, etc., and the working principle is that the mechanical cooperation of the pin of the male terminal and the hole of the female terminal realizes the conduction.

[0004] The existing connector terminal has the following disadvantages: the existing terminal structure is simple, the connection stability of the connector terminal is poor, the mechanical bite force and the friction force cannot be effectively improved, the stability of the connection cannot be guaranteed, the contact resistance is large, and the aging of the connector is accelerated; therefore, a high-stability connector terminal is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the deficiencies of the existing connector terminal, a high-stability connector terminal is proposed.

[0006] The utility model discloses a high-stability connector terminal, which comprises a male terminal and a female terminal, the male terminal comprises a connecting end and a first wire fixing end for fixing a wire, the female terminal comprises an insertion end matched with the connecting end and a second wire fixing end for fixing a wire, the top end of the insertion end is oppositely bent to form two first bending parts, the bottom end of the insertion end is oppositely bent to form two second bending parts, the first bending part and the second bending part are both circular-arc bending structures, and the bending directions of the first bending part and the second bending part are both towards the inside of the insertion end.

[0007] Preferably, the contact surface positions of the first bending part and the second bending part with the connecting end are staggered.

[0008] Preferably, the spacing between the first bending part and the second bending part is less than one to two millimeters of the thickness of the connecting end.

[0009] Preferably, an arc-shaped bevel is formed at the entrance of the first bending part and the second bending part.

[0010] Preferably, an inclined chamfer is formed on both sides of the first end of the connecting end.

[0011] Preferably, the first wire fixing end comprises a first fixing claw and a second fixing claw, and a plurality of first protrusions are fixedly arranged on the inner wall of the second fixing claw.

[0012] Preferably, the second wire fixing end comprises a third fixing claw and a fourth fixing claw, and an inner wall of the fourth fixing claw is fixedly provided with a plurality of second protrusions.

[0013] The utility model discloses beneficial effects of:

[0014] 1. Stable connection: when the male terminal connecting end is inserted into the female terminal insertion end, the top end and the bottom end are opposite and bent and are first and second bending parts in arc shape, and the elastic reverse recovery force tightly wraps the connecting end, even if there is manufacturing tolerance, can guarantee good contact, greatly improves the mechanical occlusion and friction, effectively resists external force such as vibration, impact, prevents the relative displacement or loosening between the male and female terminals, provides solid guarantee for the high reliability requirement field of industry, aerospace and the like;

[0015] 2. Efficient electrical performance: the bending part of tight wrapping and the larger contact pressure generated by the smaller spacing significantly reduce the contact resistance between the male terminal and the female terminal, reduce the loss and heating phenomenon of electric energy at the contact position, improve the energy utilization efficiency of the electrical system, reduce the aging and failure risk of the connector caused by heating, the staggered contact surface increases the effective contact area, provides more conductive paths, ensures smooth current transmission, avoids current concentration in the local area, improves the stability and reliability of the connector in large current transmission. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings described herein are used to provide further understanding of the utility model, and constitute a part of the present application, and the illustrative embodiment of the utility model and its explanation are used to explain the utility model, and do not constitute undue limitation on the utility model. In the drawings:

[0017] Figure 1 It is the top view of the male terminal of the utility model;

[0018] Figure 2 It is the side view of the male terminal of the utility model;

[0019] Figure 3 It is the top view of the female terminal of the utility model;

[0020] Figure 4 It is the side view of the female terminal of the utility model;

[0021] Figure 5 It is the structure diagram of the insertion end of the utility model;

[0022] Legend:

[0023] 1. male terminal; 101, connecting end; 1011, bevel chamfer; 102, first wire fixing end; 1021, first fixing claw; 1022, second fixing claw; 2, female terminal; 201, insertion end; 2011, first bending part; 2012, second bending part; 202, second wire fixing end; 2021, third fixing claw; 2022, fourth fixing claw; 3, arc bevel; 4, first convex strip; 5, second convex strip. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] The specific embodiments are given below.

[0026] Please refer to Figures 1-5The present invention discloses a high-stability connector terminal, comprising a male terminal 1 and a female terminal 2. The male terminal 1 includes a connecting end 101 and a first wire fixing end 102 for fixing wires. The female terminal 2 includes an insertion end 201 that mates with the connecting end 101 and a second wire fixing end 202 for fixing wires. The top end of the insertion end 201 has two opposing bends 2011, and the bottom end of the insertion end 201 has two opposing bends 2012. Both the first bends 2011 and the second bends 2012 are arc-shaped bends. The bending directions of both the first bending portion 2011 and the second bending portion 2012 are towards the interior of the insertion end 201. Both sides of the beginning of the connecting end 101 are provided with chamfered corners 1011. The distance between the first bending portion 2011 and the second bending portion 2012 is less than one to two millimeters less than the thickness of the connecting end 101. During operation, the male terminal 1 and the female terminal 2 constitute the core of the connector. Circuit conduction is achieved by inserting the male terminal connecting end 101 into the female terminal insertion end 201. The first wire fixing end 102 and the second wire fixing end 202 securely connect external wires to the connector terminals, allowing current to be transmitted from the wires to the terminals and then through the terminal connections. The wire is then passed to another conductor to complete the electrical connection circuit. When the connecting end 101 of the male terminal 1 is inserted, it presses against the first bent portion 2011 and the second bent portion 2012. Due to their elasticity, the first bent portion 2011 and the second bent portion 2012 generate a reverse elastic restoring force, tightly wrapping the connecting end 101 to achieve a tight fit. This also accommodates minor dimensional deviations that may occur during the manufacturing process, ensuring good contact. The chamfered corners 1011 on both sides of the beginning of the connecting end 101 play a key guiding role during insertion, guiding the connecting end 101 smoothly into the opening of the insertion end 201, reducing insertion resistance and jamming, and making the insertion and removal operation smooth. The spacing between the bent portions 2012 is one to two millimeters less than the thickness of the connecting end 101. This forces the first bent portion 2011 and the second bent portion 2012 to expand outward and undergo elastic deformation when the connecting end 101 is inserted. According to Hooke's Law, this generates a large elastic restoring force, which applies stronger pressure to the connecting end and increases the contact area and pressure. The first bent portion 2011 and the second bent portion 2012 of this invention tightly wrap around the connecting end 101. Combined with the large contact pressure generated by the small spacing, this effectively reduces the contact resistance between the male terminal 1 and the female terminal 2, improves the energy utilization efficiency of the electrical system, and reduces the risk of connector aging and failure due to heat generation.

[0027] Further, the contact surface positions of the first bending part 2011 and the second bending part 2012 are staggered with the connecting end 101; when the connecting end 101 of the male terminal 1 is inserted into the insertion end 201 of the female terminal 2, the connecting end sequentially contacts the contact surfaces of the bending parts at different positions during the insertion process, that is, the contact points between the connecting end 101 and the female terminal 2 are distributed at different heights and angles, rather than concentrated in the same plane or position, the effective contact area between the male terminal and the female terminal is greatly increased by the staggered contact surfaces, compared with the design that the contact surfaces are in the same position, more connecting end surface areas can contact the bending parts, further reducing the contact resistance, and the staggered contact surfaces increase the mechanical engagement force and friction force between the male terminal 1 and the female terminal 2, so that the multi-position contact structure can better resist external forces such as vibration and impact, prevent displacement or loosening, further improve the connection stability of the connector, and is suitable for high-reliability connection in the fields of industry, aerospace, etc.

[0028] Further, the first bending part 2011 and the second bending part 2012 are provided with arc grooves 3 at the entrances thereof; during operation, the arc grooves 3 are located at the entrance positions of the first bending part 2011 and the second bending part 2012, and when the connecting end 101 of the male terminal 1 is inserted into the insertion end 201, the arc grooves are first contacted, the curved surface shape guides the connecting end to smoothly enter the space between the bending parts along a specific trajectory, similar to the effect of a guide groove, and the contact area between the connecting end 101 and the arc grooves 3 gradually increases during the insertion process, so that the insertion force is uniformly distributed at the front end of the connecting end 101, avoiding jamming or damage caused by excessive local stress, the guiding effect of the arc grooves 3 greatly reduces the resistance during insertion and removal, so that the male terminal 1 can be more easily and smoothly inserted and removed from the female terminal 2, which is particularly important for application scenarios with frequent insertion and removal operations, can improve the work efficiency of the operator, and reduce the operation time and labor intensity.

[0029] Further, the first wire fixing end 102 comprises a first fixing claw 1021 and a second fixing claw 1022, an inner wall of the second fixing claw 1022 is fixedly provided with a plurality of first protrusions 4, the second wire fixing end 202 comprises a third fixing claw 2021 and a fourth fixing claw 2022, an inner wall of the fourth fixing claw 2022 is fixedly provided with a plurality of second protrusions 5; in working, the first wire fixing end 102 and the second wire fixing end 202 are clamped and fixed to the wire through the first fixing claw 1021, the second fixing claw 1022, the third fixing claw 2021 and the fourth fixing claw 2022 respectively, when the first wire fixing end 102 and the second wire fixing end 202 are inserted into the first wire fixing end 102 and the second wire fixing end 202 respectively, the first fixing claw 1021, the second fixing claw 1022, the third fixing claw 2021 and the fourth fixing claw 2022 respectively apply radial pressure to the wire to tightly hold the wire, the first protrusions 4 on the inner wall of the fourth fixing claw 2022 and the second protrusions 5 on the inner wall of the fourth fixing claw 2022 play an important role in fixing the wire, when the fixing claw applies pressure, the protrusions are embedded in the surface of the insulating outer skin of the wire, the friction between the fixing claw and the wire is increased, and the contact points between the fixing claw and the wire are changed from a continuous plane to a plurality of discrete points, this multi-point contact mode can better disperse the fixing force, prevent the wire from sliding or rotating in the fixing claw, and improve the stability of the connector when bearing mechanical external force.

[0030] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] The basic principles, main features and advantages of the present application have been shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A high-stability connector terminal characterized by: The utility model relates to a terminal, including male terminal (1), female terminal (2), the male terminal (1) includes connecting end (101) and the first wire fixed end (102) for fixing wire, the female terminal (2) includes the insertion end (201) with connecting end (101) cooperation, and the second wire fixed end (202) for fixing wire, the top of insertion end (201) is opposite and is bent and is provided with two first bending part (2011), the bottom of insertion end (201) is opposite and is bent and is provided with two second bending part (2012), first bending part (2011) and second bending part (2012) are all circular arc and are bent structure, the bending direction of first bending part (2011) and second bending part (2012) all are towards the inside of insertion end (201); First bending part (2011) and second bending part (2012) both with the contact surface position of connecting end (101) are staggered and set, the interval between first bending part (2011) and second bending part (2012) is less than the thickness of connecting end (101) one to two millimeters.

2. The high stability connector terminal of claim 1, wherein: The entrance of first bending part (2011) and second bending part (2012) are all provided with arc bevel (3).

3. The high stability connector terminal of claim 1, wherein: The first end both sides of connecting end (101) are provided with inclined chamfer (1011).

4. The high stability connector terminal of claim 1, wherein: The first wire fixed end (102) includes first fixed claw (1021), second fixed claw (1022), the inner wall of second fixed claw (1022) is fixedly provided with a plurality of first convex strips (4).

5. The high stability connector terminal of claim 1, wherein: The second wire fixed end (202) includes third fixed claw (2021), fourth fixed claw (2022), the inner wall of fourth fixed claw (2022) is fixedly provided with a plurality of second convex strips (5).

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