Stable connector terminal

Abstract

The utility model belongs to the technical field of connectors, and particularly relates to a stable connector terminal, which comprises a male terminal and a female terminal, the female terminal is provided with an insertion part, a first fixing part and a second fixing part, the inner wall of the first fixing part is provided with a plurality of groups of raised lines, a first fixing arm of the second fixing part is trapezoidal, and the second fixing arm is provided with a rectangular through hole matched with the first fixing arm. Inclined protruding blocks are arranged on the inner walls of the first fixing part and the second fixing part, the inserting part is provided with an arc-shaped bent lug, a boss and a positioning block, the male terminal is provided with a corresponding hole, the first fixing part and the second fixing part achieve multi-dimensional fastening of a cable through pressing, the connection stability is improved, the connector can adapt to a complex environment, and the structure of the inserting part and the male terminal can be accurately positioned and stably clamped. According to the utility model, the electrical connection is accurate and stable, the poor contact problem caused by external force such as vibration is reduced, the problems of unstable cable fixation and unreliable male and female terminal connection in the prior art are solved, the product reliability is improved, the fault occurrence rate is reduced, and the electrical connector has important practical value in the field of electrical connection.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, specifically a stable connector terminal. Background Technology

[0002] Connector terminals are key components in electrical connections, acting as bridges to enable the transmission of current or signals between circuits. They are crucial for the normal operation of equipment, and their stable connection ensures the stability and reliability of the electrical system.

[0003] Existing connector terminals mainly consist of the following parts: female terminals and male terminals, which are made of highly conductive metal. Common types include slot type and blade type. Slot type terminals have slots to accommodate blades, while blade type terminals are flat in shape for easy insertion. The blades are inserted into the slots and conduct current through close contact.

[0004] Current connector terminals have the following drawbacks: In terms of cable fixing, common fixing methods are relatively simple, and it is difficult to achieve a stable and reliable fixation of the cable by relying on a single structure. In subsequent use, once affected by external factors, such as slight vibration in daily use, continuous vibration in industrial environment, or frequent and large temperature changes, the cable is easy to loosen or even fall off. It cannot withstand various stresses in complex environments, resulting in a high failure rate due to unstable cable connection, which seriously affects the long-term stable operation of the product. Therefore, a stable connector terminal is proposed to address the above problems. Utility Model Content

[0005] To address the shortcomings of existing connector terminals, a robust connector terminal is proposed.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A stable connector terminal of this utility model includes a male terminal and a female terminal. The female terminal includes an insertion part that mates with the male terminal, and also includes a first fixing part and a second fixing part for fixing the connecting cable. The inner wall of the first fixing part is fixedly provided with an array of protrusions. The second fixing part includes a first fixing arm and a second fixing arm. Both of them have a plurality of protrusions fixedly provided on their inner walls. The protrusions are inclined and the inclination direction is towards the insertion part. The first fixing arm is trapezoidal in shape, shorter at the top and wider at the bottom. The second fixing arm has a rectangular through hole that mates with the trapezoidal structure of the first fixing arm.

[0007] Preferably, the insertion part includes two opposing arc-shaped bent ears at the upper end, and a boss at the lower end that is recessed into the insertion part.

[0008] Preferably, the curved bent ear has a curved chamfer at one end located at the insertion entrance.

[0009] Preferably, the insertion part further includes a positioning block fixedly disposed on one side of its inner wall, and the male terminal is provided with a hole that cooperates with the positioning block.

[0010] Preferably, the positioning block has a bevel on the side near the entrance.

[0011] The beneficial effects of this utility model are:

[0012] This utility model provides a stable connector terminal. The first fixing arm and the second fixing arm of the second fixing part are mechanically interlocked by trapezoidal and rectangular through holes, as well as the oblique extrusion force of the inclined protrusion, to fasten the cable in multiple dimensions. This makes the cable connection stability far exceed that of the traditional method, avoids loosening and falling off, and can work stably in complex environments such as vibration and large temperature changes, greatly reducing the failure rate.

[0013] The male and female terminal insertion section features a flexible clamping mechanism with a bent lug and a boss support, forming a stable three-point clamping system. The positioning block precisely matches the hole to prevent the male terminal from coming out, ensuring a precise and stable electrical connection. This design performs exceptionally well in complex vibration scenarios, significantly improving connector reliability and broadening its application range. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0015] Figure 1 This is a structural diagram of the male and female terminals of this utility model;

[0016] Figure 2 This is a top view of the female terminal of this utility model;

[0017] Figure 3 This is a structural diagram showing the position of the insertion part of this utility model;

[0018] Legend:

[0019] 1. Male terminal; 101. Hole; 2. Female terminal; 3. Insertion part; 301. Arc-shaped bent ear; 3011. Arc-shaped chamfer; 302. Boss; 303. Positioning block; 3031. Bevel; 4. First fixing part; 5. Second fixing part; 501. First fixing arm; 502. Second fixing arm; 503. Protrusion; 504. Rectangular through hole; 6. Raised strip. Detailed Implementation

[0020] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Specific implementation examples are given below.

[0022] Please see Figures 1-3The present invention discloses a stable connector terminal, comprising a male terminal 1 and a female terminal 2. The female terminal 2 includes an insertion portion 3 that mates with the male terminal 1, and further includes a first fixing portion 4 and a second fixing portion 5 for fixing a connecting cable. The inner wall of the first fixing portion 4 is fixedly provided with an array of protrusions 6. The second fixing portion 5 includes a first fixing arm 501 and a second fixing arm 502, both of which are fixedly provided with a plurality of protrusions 503 on their inner walls. The protrusions 503 are inclined and the inclination direction is towards the insertion portion 3. The first fixing arm 501 is trapezoidal in shape, shorter at the top and wider at the bottom. The second fixing arm 502 has a portion that mates with the first fixing arm 501 and the second fixing arm 502. A rectangular through hole 504 is fitted with a trapezoidal structure of a fixed arm 501. During operation, when fixing the cable, the operator first places the cable above the first fixing part 4 and the second fixing part 5. The array of protrusions 6 on the inner wall of the first fixing part 4 initially contacts the cable. Due to the presence of the protrusions 6, the friction with the cable is increased, providing initial positioning and fixing for the cable. The operator then uses a special tool to press the first fixing part 4 and the second fixing part 5. Under the pressure, the first fixing part 4 gradually deforms and tightly fits the cable, and the array of protrusions 6 further embeds into the cable, strengthening the fixing effect. At the same time, the second fixing part 5... The first fixing arm 501 and the second fixing arm 502 also begin to move. As the pressing force increases, they move closer to the cable. Due to the special shape of the first fixing arm 501, which is shorter at the top and wider at the bottom, its wider lower part will first insert into and contact the edge of the rectangular through hole 504 of the second fixing arm 502 during the pressing process. As the pressing force continues to increase, the first fixing arm 501 gradually inserts into the rectangular through hole 504. The trapezoidal inclined surface and the edge of the rectangular through hole 504 produce a mechanical interlocking effect, and the two wedge each other tightly, further enhancing the clamping force on the cable and achieving a stable fixation of the cable. This interlocking effect makes the first fixing arm 501 and the second fixing arm 502 perpendicular to each other. A rigid constraint is formed along the cable axis, thereby generating a strong clamping force. At the same time, the protrusions 503 on the inner wall, under the action of the inclined structure, transform the pressing force into an oblique squeezing force on the cable. As the insertion depth increases, a fastening effect similar to a mechanical wedge is formed, making the cable firmly secured. The design structure of the first fixing part 4 and the second fixing part 5 of this utility model greatly improves the stability and reliability of the cable connection, can adapt to complex usage environments, such as scenarios with frequent vibration and large temperature changes, effectively prevent the cable from loosening or falling off, reduce the probability of failure caused by cable connection problems, and provide a strong guarantee for the long-term stable operation of the product.

[0023] Furthermore, the insertion part 3 includes two opposing arc-shaped bent ears 301 at the upper end, and a boss 302 recessed into the insertion part 3 at the lower end. An arc-shaped chamfer 3011 is formed at the end of the arc-shaped bent ears 301 near the entrance of the insertion part 3. The insertion part 3 also includes a positioning block 303 fixedly disposed on one side of its inner wall. The male terminal 1 has a hole 101 that mates with the positioning block 303. A bevel 3031 is formed on the side of the positioning block 303 near the entrance. During operation, when the male terminal 1 is inserted into the insertion part 3 of the female terminal 2, the arc-shaped chamfer 3011 on the arc-shaped bent ears 301 functions. Its smooth arc contour guides the male terminal 1 to accurately and smoothly align with the entrance of the insertion part 3, reducing resistance during insertion and preventing terminal damage caused by insertion deviation. As the male terminal 1 is inserted deeper, the two arc-shaped bent ears 301 at the upper end generate a centripetal clamping force due to elastic deformation, enclosing the top area of ​​the male terminal 1. Meanwhile, the lower boss 302 provides support to the bottom of the male terminal 1 through a recessed structure. This upper and lower clamping structure forms a stable clamping state with three points of contact after the male terminal 1 is inserted into place. When the positioning block 303 enters the hole 101, the bevel 3031 on the positioning block 303 allows the positioning block 303 to enter the hole 101 more easily, achieving precise positioning of the male terminal 1 and the female terminal 2 in the horizontal direction, ensuring the accuracy of the electrical connection, and preventing the male terminal 1 from exiting along the axial direction. This stable clamping structure ensures that the male terminal 1 and the female terminal 2 maintain a good contact state during long-term use, effectively reducing poor contact caused by external forces such as vibration and displacement, and ensuring the stability of the electrical connection. Especially in some application scenarios with complex vibration environments, such as electrical connections in automotive engine compartments and vibrating working areas of industrial equipment, this design can significantly improve the reliability of connector terminals and reduce equipment failures caused by unstable connections.

[0024] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A ruggedized connector terminal comprising a male terminal (1), a female terminal (2), characterized in that: The female terminal (2) comprises an insertion part (3) matched with the male terminal (1), and a first fixing part (4) and a second fixing part (5) for fixing a connecting cable, an inner wall of the first fixing part (4) is fixedly provided with a plurality of convex strips (6), the second fixing part (5) comprises a first fixing arm (501) and a second fixing arm (502), inner walls of the two are fixedly provided with a plurality of convex blocks (503), the convex blocks (503) are in an inclined structure, and the inclined direction is towards the insertion part (3), the first fixing arm (501) is in a trapezoidal structure with short upper end and wide lower end, and the second fixing arm (502) is provided with a rectangular through hole (504) matched with the trapezoidal structure of the first fixing arm (501).

2. The ruggedized connector terminal of claim 1, wherein: The insertion part (3) comprises two oppositely arranged arc-shaped bent ears (301) at the upper end, and a boss (302) recessed towards the inside of the insertion part (3) at the lower end.

3. The ruggedized connector terminal of claim 2, wherein: An arc-shaped chamfer (3011) is arranged at one end of the arc-shaped bent ear (301) at the entrance of the insertion part (3).

4. The ruggedized connector terminal of claim 1, wherein: The insertion part (3) further comprises a positioning block (303) fixedly arranged on one side of the inner wall thereof, and the male terminal (1) is provided with a hole (101) matched with the positioning block (303).

5. The ruggedized connector terminal of claim 4, wherein: A bevel (3031) is arranged on one side of the positioning block (303) close to the entrance.

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