Crimping type conductive terminal

Abstract

The utility model belongs to the technical field of parts for electric power wiring, and particularly relates to a crimping type conductive terminal, which comprises a terminal main body, one section of the terminal main body is connected with a terminal lead, the outer side of the terminal lead is sleeved with a butt joint assembly, and the terminal lead is slidably connected in a limiting assembly through the butt joint assembly. The terminal body is connected with the limiting assembly through the crimping assembly, one end of the terminal wire is provided with a wire crimping end, the butt joint assembly comprises a wire sleeve, one end of the wire sleeve is fixedly connected with a protruding shaft push rod, a pressure spring is arranged on the outer side of the wire sleeve, the limiting assembly comprises a terminal sleeve, and a guide groove is formed in the terminal sleeve. According to the crimping type conductive terminal, through deformation of the elastic rubber head and extension of the pressure spring, synchronous movement of the terminal wire and the wire rod sleeve and automatic feeding of the wire crimping end into the crimping assembly are realized, manual insertion is not needed, so that the assembly efficiency is improved, and the connection stability is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of components for power wiring, and in particular to a crimp-type conductive terminal. Background Technology

[0002] Crimped conductive terminals are electrical connection elements that connect wires and terminals through mechanical pressure. They are widely used in automobiles, home appliances, communications and other fields. The principle is to use a crimping tool to apply pressure to the contact area between the wire and the terminal, so that the two form an inseparable electrical and mechanical connection.

[0003] Its main function is to realize the electrical connection between conductors and ensure the stable transmission of current or signal. According to the different structures and functions, conductive terminals can be divided into open cylinder type and closed cylinder type. The plating materials include tin plating, silver plating, gold plating, etc. Moreover, with the increase of industrial automation and the increase of the complexity of electrical equipment, the performance requirements of conductive terminals are also getting higher and higher.

[0004] Currently, the assembly of crimped conductive terminals is often done manually. The operator manually feeds the wire into the conductive terminal and uses a crimping tool to crimp the exposed wire in the terminal. However, if the operator does not fully feed the wire into the crimping area of ​​the terminal, the crimping tool cannot make sufficient contact with the wire, which can easily lead to an unstable connection between the crimped terminal and the wire, affecting the normal use of the terminal. Utility Model Content

[0005] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0006] Specifically, the technical problem to be solved by this utility model is to provide a crimp-type conductive terminal to solve the problem that in the current method of manually assembling conductive terminals, when the operator does not fully insert the wire into the crimping area of ​​the terminal, the crimping tool cannot make sufficient contact with the wire, which easily leads to an unstable connection between the crimped terminal and the wire, affecting the normal use of the terminal.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0008] A crimp-type conductive terminal includes a terminal body, a terminal wire connected to a section of the terminal body, a mating assembly sleeved on the outer side of the terminal wire, the terminal wire being slidably connected to a limiting assembly through the mating assembly, and the terminal body being connected to the limiting assembly through the crimping assembly. A wire crimping end is provided at one end of the terminal wire passing through the mating assembly, and the wire crimping end extends into the terminal body at one end passing through the crimping assembly.

[0009] The docking assembly includes a wire sleeve that is clearance-fitted with the terminal wire. A push rod is fixedly connected to one end of the wire sleeve near the terminal body, and a pressure spring is provided on the outer side of the wire sleeve.

[0010] The limiting assembly includes a terminal sleeve with a guide groove for limiting the sliding of the push rod. The pressure spring is located in the terminal sleeve and sleeved outside the wire sleeve. The two ends of the pressure spring are connected to the push rod and the terminal sleeve, respectively.

[0011] As an improved technical solution, an elastic rubber head for restricting the movement of the terminal wire is fixedly installed at one end of the wire sleeve extending into the terminal sleeve, and the elastic rubber head has a funnel-shaped structure, and an annular groove is also provided between the elastic rubber head and the wire sleeve.

[0012] As an improved technical solution, the terminal sleeve is also provided with a spring groove, and the spring groove is provided with an elastic rubber ring that matches the annular groove.

[0013] As an improved technical solution, the terminal sleeve is further provided with an annular spring corresponding to the spring groove, and the elastic rubber ring is wrapped inside the annular spring.

[0014] As an improved technical solution, the crimping assembly includes a terminal crimping end fixedly installed on the terminal body, a funnel-shaped buffer end fixedly installed at the end of the terminal crimping end away from the terminal body, and the end of the buffer end away from the terminal crimping end fixedly connected to the terminal sleeve.

[0015] As an improved technical solution, the two ends of the terminal crimping end are respectively provided with a first crimping interface and a second crimping interface, and the first crimping interface is located between the terminal crimping end and the buffer end. Each terminal crimping end is fixedly installed with a crimping block corresponding to the first crimping interface and the second crimping interface.

[0016] As an improved technical solution, the surface of the crimping block is provided with equidistantly arranged protrusions and recesses, and the outer side of the crimping block is also provided with an arc surface that matches the crimping end of the wire.

[0017] After adopting the above technical solution, the beneficial effects of this utility model are:

[0018] 1. This utility model achieves synchronous movement of the terminal wire and the wire sleeve by means of the deformation of the elastic rubber head and the extension of the pressure spring, as well as automatic feeding of the wire crimping end into the crimping assembly, without the need for manual insertion, thereby improving assembly efficiency and ensuring connection stability.

[0019] 2. This utility model achieves precise positioning and movement restriction of the wire sleeve through the expansion and contraction of the annular spring and the snap-fit ​​between the elastic rubber ring and the elastic rubber head, ensuring accurate wire docking length, reducing operational errors, and improving assembly precision and reliability.

[0020] 3. This utility model, through the concave-convex structure and arc surface on the crimping block, increases the friction force during crimping and ensures close contact between the crimping end of the wire and the terminal body, thereby ensuring the reliability of the electrical connection between the wire and the terminal, while reducing stress concentration and improving the durability of the connection. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0022] Figure 1 This is a three-dimensional structural diagram of the press-fit conductive terminal of this utility model.

[0023] Figure 2 This is a cross-sectional view of the press-fit conductive terminal of this utility model.

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of the press-fit conductive terminal of this utility model.

[0025] Figure 4 This is an exploded structural diagram of the press-fit conductive terminal of this utility model.

[0026] Figure 5 This is a cross-sectional view of the crimp end and the terminal sleeve of the crimp-type conductive terminal of this utility model.

[0027] Figure 6 This is a cross-sectional view of the crimp end of the crimp-type conductive terminal of this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Terminal body; 2. Terminal wire; 201. Wire crimp end; 3. Crimping assembly; 301. Terminal crimp end; 302. Buffer end; 303. First crimping interface; 304. Second crimping interface; 4. Connecting assembly; 401. Wire sleeve; 402. Protruding shaft push rod; 403. Pressure spring; 404. Elastic rubber head; 405. Annular groove; 5. Limiting assembly; 501. Terminal sleeve; 5011. Guide groove; 5012. Spring groove; 502. Elastic rubber ring; 503. Annular spring; 6. Crimping block. Detailed Implementation

[0030] 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.

[0031] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0032] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0033] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0034] like Figures 1 to 6As shown in the figure, this embodiment provides a crimp-type conductive terminal, which includes a terminal body 1, a terminal wire 2 connected to one end of the terminal body 1, a mating assembly 4 sleeved on the outside of the terminal wire 2, the terminal wire 2 being slidably connected to a limiting assembly 5 through the mating assembly 4, and the terminal body 1 being connected to the limiting assembly 5 through a crimping assembly 3. A wire crimping end 201 is provided at one end of the terminal wire 2 passing through the mating assembly 4, and the wire crimping end 201 extends into the terminal body 1 at one end passing through the crimping assembly 3. The mating assembly 4 includes a wire sleeve 401 that is clearance-fitted with the terminal wire 2. A protruding shaft push rod 402 is fixedly connected to one end of the wire sleeve 401 near the terminal body 1, and a pressure spring 403 is provided on the outside of the wire sleeve 401. The limiting assembly 5 includes a terminal sleeve 501, on which a guide groove 50 is provided for the limiting sliding of the protruding shaft push rod 402. 11. The pressure spring 403 is located in the terminal sleeve 501 and sleeved outside the wire sleeve 401. The two ends of the pressure spring 403 are connected to the push rod 402 and the terminal sleeve 501 respectively. The terminal body 1 is the basic structure of the entire terminal, used to support and connect other components. The terminal wire 2 is a wire used to transmit current or signal. By passing the wire crimp end 201 through the crimping assembly 3 and extending into the terminal body 1, it is ensured that the crimped wire is in close contact with the terminal body 1. The wire sleeve 401 is sleeved on the insulation layer of the terminal wire 2. The push rod 402 drives the wire sleeve 401 to slide in the terminal sleeve 501 under the restriction of the guide groove 5011. When the pressure spring 403 is in the extended state, it pushes the wire sleeve 401 connected to the push rod 402 to move, thereby sending the wire crimp end 201 of the terminal wire 2 in the wire sleeve 401 into the crimping assembly 3 for crimping.

[0035] One end of the wire sleeve 401 extending into the terminal sleeve 501 is fixedly fitted with an elastic rubber head 404 for restricting the movement of the terminal wire 2. The elastic rubber head 404 has a funnel-shaped structure, and an annular groove 405 is provided between the elastic rubber head 404 and the wire sleeve 401. The elastic rubber head 404 can fix the terminal wire 2 inside the wire sleeve 401 through its own elasticity, thereby ensuring the synchronous movement of the wire sleeve 401 and the terminal wire 2.

[0036] The terminal sleeve 501 is also provided with a spring groove 5012. The spring groove 5012 is provided with an elastic rubber ring 502 that is adapted to the annular groove 405. After the elastic rubber head 404 enters the terminal sleeve 501 and corresponds with the elastic rubber ring 502, the elastic rubber ring 502 and the annular groove 405 are engaged, thereby restricting the movement of the elastic rubber ring 502 in the terminal sleeve 501.

[0037] The terminal sleeve 501 is also provided with an annular spring 503 corresponding to the spring groove 5012, and the elastic rubber ring 502 is wrapped inside the annular spring 503. The annular spring 503 can expand when the elastic rubber head 404 enters to avoid interfering with the movement of the elastic rubber head 404. When it moves to the annular groove 405, it contracts and drives the elastic rubber ring 502 to complete the engagement with the elastic rubber head 404, thereby ensuring the accuracy of the docking length of the terminal wire 2 and reducing errors.

[0038] The crimping assembly 3 includes a terminal crimping end 301 fixedly installed on the terminal body 1. A funnel-shaped buffer end 302 is fixedly installed at the end of the terminal crimping end 301 away from the terminal body 1. The end of the buffer end 302 away from the terminal crimping end 301 is fixedly connected to the terminal sleeve 501. The buffer end 302 is funnel-shaped and is used to guide the terminal wire 2 into the crimping area.

[0039] The terminal crimping end 301 has a first crimping interface 303 and a second crimping interface 304 respectively at both ends. The first crimping interface 303 is located between the terminal crimping end 301 and the buffer end 302. Each terminal crimping end 301 has a crimping block 6 corresponding to the first crimping interface 303 and the second crimping interface 304. The terminal crimping end 301 is provided with the first crimping interface 303 and the second crimping interface 304 to accommodate the crimping block 6 and to facilitate the crimping operation of the wire crimping end 201 inserted therein by means of tools.

[0040] The surface of the crimping block 6 has equidistantly arranged concave and convex shapes. The outer side of the crimping block 6 also has an arc surface that matches the crimping end 201 of the wire. The crimping block 6 uses the concave and convex structure to increase the friction during crimping, ensuring close contact between the crimping end 201 of the wire and the terminal body 1. The arc surface also ensures that the wire shape is regular after crimping and reduces stress concentration.

[0041] During use, when assembling the terminal wire 2 and the terminal body 1, the wire sleeve 401 is pulled out from the terminal sleeve 501, causing the pressure spring 403 to be compressed. The insulation layer of the terminal wire 2 is then inserted into the wire sleeve 401 of the mating assembly 4. The deformation of the elastic rubber head 404 ensures synchronous movement of the terminal wire 2 and the wire sleeve 401. The extended pressure spring 403 pushes the wire sleeve 401 to move, ensuring that the wire crimping end 201 can be smoothly fed into the crimping assembly 3, eliminating the need for manual insertion and ensuring a stable connection. During this process, as the elastic rubber head 404 enters the terminal sleeve 501, the annular spring 503 expands, preventing interference with the movement of the elastic rubber head 404. When the elastic rubber head 404 reaches the annular groove 405, the annular spring 503 contracts, causing the elastic rubber ring 502 to engage with the elastic rubber head 404, further restricting the movement of the wire sleeve 401, ensuring accurate wire connection length, and reducing operational errors. The funnel-shaped buffer end 302 is used to guide the terminal wire 2 into the crimping area, and pressure is applied to the crimping blocks 6 in the first crimping interface 303 and the second crimping interface 304 on the terminal crimping end 301 by a tool, crimping the wire crimping end 201 into the terminal body 1, completing the electrical connection between the wire and the terminal. The concave and convex structure and its arc surface on the crimping block 6 increase the friction during crimping, ensuring tight contact between the wire crimping end 201 and the terminal body 1.

[0042] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A crimp-type conductive terminal, characterized in that: The device includes a terminal body (1), a terminal wire (2) is connected to one end of the terminal body (1), a docking component (4) is sleeved on the outside of the terminal wire (2), the terminal wire (2) is slidably connected to the limiting component (5) through the docking component (4), and the terminal body (1) is connected to the limiting component (5) through the crimping component (3). One end of the terminal wire (2) passing through the docking component (4) is provided with a wire crimping end (201), and the end of the wire crimping end (201) passing through the crimping component (3) extends into the terminal body (1). The docking assembly (4) includes a wire sleeve (401) that is clearance-fitted with the terminal wire (2). The end of the wire sleeve (401) near the terminal body (1) is also fixedly connected to a protruding shaft push rod (402), and a pressure spring (403) is also provided on the outside of the wire sleeve (401). The limiting component (5) includes a terminal sleeve (501), on which a guide groove (5011) is provided for limiting the sliding of the protruding shaft push rod (402). The pressure spring (403) is located in the terminal sleeve (501) and sleeved outside the wire sleeve (401). The two ends of the pressure spring (403) are respectively connected to the protruding shaft push rod (402) and the terminal sleeve (501).

2. The press-fit conductive terminal according to claim 1, characterized in that: The end of the wire sleeve (401) extending into the terminal sleeve (501) is fixedly installed with an elastic rubber head (404) for restricting the movement of the terminal wire (2), and the elastic rubber head (404) has a funnel-shaped structure. An annular groove (405) is also provided between the elastic rubber head (404) and the wire sleeve (401).

3. The press-fit conductive terminal according to claim 2, characterized in that: The terminal sleeve (501) is also provided with a spring groove (5012), and the spring groove (5012) is provided with an elastic rubber ring (502) that is adapted to the annular groove (405).

4. The press-fit conductive terminal according to claim 3, characterized in that: The terminal sleeve (501) is also provided with an annular spring (503) corresponding to the spring groove (5012), and the elastic rubber ring (502) is wrapped inside the annular spring (503).

5. The press-fit conductive terminal according to claim 1, characterized in that: The crimping assembly (3) includes a terminal crimping end (301) fixedly installed on the terminal body (1). A funnel-shaped buffer end (302) is fixedly installed at the end of the terminal crimping end (301) away from the terminal body (1), and the end of the buffer end (302) away from the terminal crimping end (301) is fixedly connected to the terminal sleeve (501).

6. The press-fit conductive terminal according to claim 5, characterized in that: The terminal crimping end (301) has a first crimping interface (303) and a second crimping interface (304) respectively at both ends, and the first crimping interface (303) is located between the terminal crimping end (301) and the buffer end (302). Each terminal crimping end (301) is fixedly installed with a crimping block (6) corresponding to the first crimping interface (303) and the second crimping interface (304).

7. The press-fit conductive terminal according to claim 6, characterized in that: The surface of the crimping block (6) is provided with equidistantly arranged protrusions and recesses, and the outer side of the crimping block (6) is also provided with an arc surface that is compatible with the wire crimping end (201).

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