Fully-wrapped anti-deformation and anti-oblique-insertion terminal connector

Abstract

The invention discloses a full-wrapping anti-deformation and anti-oblique-insertion terminal connector, and belongs to the technical field of terminal connectors, the full-wrapping anti-deformation and anti-oblique-insertion terminal connector comprises a terminal body, a left opening and a right opening are formed in the terminal body, a pin fixing part is arranged on the terminal body, and a first full-wrapping fixing structure is arranged at the front end of the top surface of the pin fixing part; the rear end of the top surface of the pin fixing part is provided with a second full-wrapping fixing structure, the first full-wrapping fixing structure is provided with a terminal elastic arm and a bending protection arm, the terminal elastic arm and the bending protection arm are integrally formed with the first full-wrapping fixing structure, the bending protection arm is arranged above the terminal elastic arm, the second full-wrapping fixing structure is provided with an inclined insertion prevention structure, and the inclined insertion prevention structure is arranged above the bending protection arm. The oblique insertion preventing structure and the second full-wrapping fixing structure are integrally formed. The anti-deformation and anti-oblique-insertion structures of the terminal are applied to one terminal at the same time, the quality of the terminal can be better guaranteed, and the stability and reliability of the terminal in the using process are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of terminal connectors, and particularly to a fully enclosed anti-deformation and anti-inclined insertion terminal connector. Background Art

[0002] With the rapid development of the electronics industry and the expansion of the market, the electrical system has become increasingly powerful. Various electrical appliances with different characteristics have emerged continuously, and their requirements for the electrical performance of wire harnesses are getting higher and higher. The connecting terminal plays an extremely important role in the wire harness and the entire electrical system. If the wire harness is regarded as the nervous system of the entire device, then the terminal is the connection point of the veins of each nervous system. Therefore, the quality of the wire harness terminal is directly related to whether the wire harness can be used normally.

[0003] When the connector is connected, the pin is inserted into the terminal, and the terminal wraps the pin in the terminal opening, thereby realizing the electrical connection of the connector and ensuring the conductivity of the connector. However, the current wire harness terminals generally adopt a stamping process to form a semi-enclosed structure, which has low strength, is prone to deformation, and has poor stability after being buckled with the pin.

[0004] Therefore, how to provide a terminal to ensure the connection stability between the terminal and the pin is a technical problem that those skilled in the art urgently need to solve. Summary of the Invention

[0005] For this reason, the present invention provides a fully enclosed anti-deformation and anti-inclined insertion terminal connector to solve the problem of unstable terminal connection caused by low strength and easy deformation of the terminal in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A fully enclosed anti-deformation and anti-inclined insertion terminal connector includes a terminal body. The terminal body has openings on the left and right, and a pin fixing portion is provided on the terminal body. A first fully enclosed fixing structure is provided at the front end of the top surface of the pin fixing portion, and a second fully enclosed fixing structure is provided at the rear end of the top surface of the pin fixing portion. A terminal elastic arm and a bending protection arm are provided on the first fully enclosed fixing structure. The terminal elastic arm and the bending protection arm are integrally formed with the first fully enclosed fixing structure. The bending protection arm is arranged above the terminal elastic arm. An anti-inclined insertion structure is provided on the second fully enclosed fixing structure. The anti-inclined insertion structure is integrally formed with the second fully enclosed fixing structure.

[0008] Furthermore, the bending protection arm includes a horizontal arm and a bending arm, and the bending arm is inclined downward. Moreover, the inclination state of the bending arm includes at least a first state, a second state, and a third state. In the first state, the bending arm is inclined above the terminal elastic arm. In the second state, the bending arm is perpendicular above the terminal elastic arm. In the third state, the bending arm is parallel and attached to the terminal elastic arm.

[0009] Furthermore, both the first fully enclosed fixing structure and the second fully enclosed fixing structure are formed by enclosing an inner plate and an outer plate. There is an outer enclosure notch on the outer plate, and an inner enclosure protrusion on the inner plate. The inner enclosure protrusion is engaged in the outer enclosure notch.

[0010] Furthermore, guiding convex points are provided on the rear end of the pin fixing portion and the inner side surface of the terminal elastic arm. The pin is inserted into the pin fixing portion along the guiding convex points and is fixed in the pin fixing portion by being squeezed by the terminal elastic arm.

[0011] Furthermore, a barb fixing structure is provided on the bottom surface of the pin fixing portion. The terminal body is fixedly inserted into the connector through the barb fixing structure.

[0012] Furthermore, an anti-reverse insertion structure and a detection window are also provided on the pin fixing portion. The anti-reverse insertion structure is provided at the front end of the first fully enclosed fixing structure, and the detection window is used to detect the opening size of the terminal body.

[0013] Furthermore, a fixing insert is provided on the anti-oblique insertion structure. The fixing insert is bent outward. An arch-shaped member is provided on the terminal elastic arm. An opening is formed between the arch-shaped member and the terminal elastic arm. One end of the fixing insert is integrally formed with the anti-oblique insertion structure, and the other end of the fixing insert is movably arranged in the opening formed between the arch-shaped member and the terminal elastic arm.

[0014] Furthermore, the fixing insert includes at least an initial state. In the initial state, the pin is not inserted into the terminal body, and the movable end of the fixing insert is hooked in the opening formed between the arch-shaped member and the terminal elastic arm.

[0015] Furthermore, the fixing insert further includes a first use state. In the first use state, the front end portion of the pin is inserted into the terminal body. The front end of the pin jacks up the anti-oblique insertion structure upward, causing the fixing insert to rotate upward to the left. The movable end of the fixing insert drives the terminal elastic arm to move upward, providing a receiving space for the insertion of the pin. And the movable end of the fixing insert gradually disengages from the opening formed between the arch-shaped member and the terminal elastic arm.

[0016] Further, the fixed insert also includes a second use state. In the second use state, the front end of the pin is completely inserted into the terminal body, and the movable end of the fixed insert completely disengages from the opening formed between the arched member and the terminal elastic arm, enabling the terminal elastic arm to rebound downward and press against the pin.

[0017] The present invention has the following advantages:

[0018] This application includes a terminal body with left and right openings. The terminal body is provided with a pin fixing portion. The front end of the top surface of the pin fixing portion is provided with a first fully enclosed fixing structure, and the rear end of the top surface of the pin fixing portion is provided with a second fully enclosed fixing structure. A terminal elastic arm and a bending protection arm are provided on the first fully enclosed fixing structure. The terminal elastic arm and the bending protection arm are integrally formed with the first fully enclosed fixing structure. The bending protection arm is arranged above the terminal elastic arm. An anti-slanting insertion structure is provided on the second fully enclosed fixing structure, and the anti-slanting insertion structure is integrally formed with the second fully enclosed fixing structure.

[0019] The first fully enclosed fixing structure and the second fully enclosed fixing structure provided in this application wrap the pin within the terminal body, preventing the pin from detaching from the terminal body. The bending protection arm provided in this application can prevent excessive deformation of the terminal elastic arm, limit the degree of deformation of the terminal elastic arm, avoid the elastic failure of the bending protection arm, keep the bending protection arm always pressing against the pin, and fix the pin within the pin fixing portion. The anti-slanting insertion structure provided in this application plays a guiding role during the insertion of the pin, preventing the pin from being inserted obliquely. This application combines the anti-deformation and anti-slanting insertion structures of the terminal onto one terminal, which can better ensure the quality of the terminal and the stability and reliability during use. Description of the Drawings

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are merely exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained based on the provided drawings.

[0021] The structures, ratios, sizes, etc. depicted in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical essence. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention.

[0022] Figure 1Schematic front view of the terminal connector provided in Embodiment 1 of the present invention;

[0023] Figure 2 Cross-sectional view of the bending arm in the first state provided in Embodiment 1 of the present invention;

[0024] Figure 3 Cross-sectional view of the bending arm in the second state provided in Embodiment 1 of the present invention;

[0025] Figure 4 Cross-sectional view of the bending arm in the third state provided in Embodiment 1 of the present invention;

[0026] Figure 5 Schematic back view of the terminal connector provided in Embodiment 1 of the present invention;

[0027] Figure 6 Schematic view of the terminal connector provided in Embodiment 2 of the present invention;

[0028] Figure 7 Cross-sectional view of the fixed insert in the initial state provided in Embodiment 2 of the present invention;

[0029] Figure 8 Cross-sectional view of the fixed insert in the first use state provided in Embodiment 2 of the present invention;

[0030] Figure 9 Cross-sectional view of the fixed insert in the second use state provided in Embodiment 2 of the present invention.

[0031] In the figure:

[0032] 1 terminal body; 2 pin fixing part; 3 first full-wrap fixing structure; 4 second full-wrap fixing structure; 5 terminal elastic arm; 6 bending protection arm; 601 horizontal arm; 602 bending arm; 7 anti-inclined insertion structure; 8 guiding bump; 9 barbed fixing structure; 10 anti-reverse insertion structure; 11 detection window; 12 outer wrap notch; 13 inner wrap protrusion; 14 fixed insert; 15 arch-shaped part. Detailed implementation manners

[0033] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0034] Embodiment 1

[0035] A full-wrap anti-deformation and anti-inclined insertion terminal connector, as Figures 1-5As shown, it includes a terminal body 1. The terminal body 1 has openings on the left and right, and a pin fixing part 2 is provided on the terminal body 1. A first fully enclosed fixing structure 3 is provided at the front end of the top surface of the pin fixing part 2, and a second fully enclosed fixing structure 4 is provided at the rear end of the top surface of the pin fixing part 2. A terminal elastic arm 5 and a bending protection arm 6 are provided on the first fully enclosed fixing structure 3. The terminal elastic arm 5 and the bending protection arm 6 are integrally formed with the first fully enclosed fixing structure 3. The bending protection arm 6 is arranged above the terminal elastic arm 5. An anti-insertion-askew structure 7 is provided on the second fully enclosed fixing structure 4. The anti-insertion-askew structure 7 is integrally formed with the second fully enclosed fixing structure 4. When the pin is inserted into the terminal body 1, the pin is inserted along the anti-insertion-askew structure 7 from the opening of the pin fixing part 2, is wrapped by the first fully enclosed fixing structure 3 and the second fully enclosed fixing structure 4, and is restricted and fixed in the pin fixing part 2 by the terminal elastic arm 5.

[0036] The first fully enclosed fixing structure 3 and the second fully enclosed fixing structure 4 provided by the present application wrap the pin inside the terminal body 1 to prevent the pin from detaching from the terminal body 1. The bending protection arm 6 provided by the present application can prevent excessive deformation of the terminal elastic arm 5, limit the deformation degree of the terminal elastic arm 5, avoid the elastic failure of the bending protection arm 6, keep the bending protection arm 6 always pressing against the pin, and restrict and fix the pin in the pin fixing part 2. The anti-insertion-askew structure 7 provided by the present application plays a guiding role during the insertion process of the pin to prevent the pin from being inserted askew. The present application applies the anti-deformation and anti-insertion-askew structures 7 of the terminal to one terminal at the same time, which can better ensure the quality of the terminal and the stability and reliability of the terminal during use.

[0037] The bending protection arm 6 includes a horizontal arm 601 and a bending arm 602, and the bending arm 602 is inclined obliquely downward. The inclined state of the bending arm 602 includes at least a first state, a second state and a third state. In the first state, as Figure 2 shown, the bending arm 602 is inclined above the terminal elastic arm 5, and the inclination angle of the bending arm 602 can be set according to the actual situation. When the pin is inserted into the pin fixing part 2, the pin jacks up the terminal elastic arm 5 upward, and the jacked-up terminal elastic arm 5 abuts against the inclined edge of the bending arm 602. In the second state, as Figure 3 shown, the inclination angle of the bending arm 602 is 90°, and the bending arm 602 is vertically arranged above the terminal elastic arm 5. When the pin is inserted into the pin fixing part 2, the pin jacks up the terminal elastic arm 5 upward, and the jacked-up terminal elastic arm 5 fits on the bottom surface of the bending arm 602. In the third state, as Figure 4 shown, the bending arm 602 is parallel and fits on the terminal elastic arm 5. When the pin is inserted into the pin fixing part 2, the pin jacks up the terminal elastic arm 5 upward, and the jacked-up terminal elastic arm 5 always fits on the inclined surface of the bending arm 602.

[0038] The first fully enclosed fixing structure 3 and the second fully enclosed fixing structure 4 are both formed by enclosing an inner plate and an outer plate. An outer enclosing notch 12 is provided on the outer plate, and an inner enclosing protrusion 13 is provided on the inner plate. The inner enclosing protrusion 13 is engaged in the outer enclosing notch 12. The first fully enclosed fixing structure 3 and the second fully enclosed fixing structure 4 are structures formed by enclosing an inner plate and an outer plate, which can prevent the first fully enclosed fixing structure 3 and the second fully enclosed fixing structure 4 from being misaligned and displaced.

[0039] As Figure 5 shown, guiding bumps 8 are provided on the rear end of the pin fixing portion 2 and the inner side surface of the terminal elastic arm 5. The shape of the guiding bump 8 is a semi-circular shape or a short elastic wall structure. The pin is inserted into the pin fixing portion 2 along the guiding bump 8 and is fixed in the pin fixing portion 2 by being pressed by the terminal elastic arm 5. At the terminal mouth portion, four guiding bumps 8 are formed, which play a guiding role during the process of inserting the pin into the terminal body 1, preventing the pin from being inserted obliquely and the terminal elastic arm 5 from being deformed.

[0040] The bottom surface of the pin fixing portion 2 is provided with a barb fixing structure 9. The terminal body 1 is fixedly connected to the connector through the barb fixing structure 9, avoiding the terminal body 1 from detaching from the connector, establishing the connection between the terminal body 1 and the connector, and enabling the connector to conduct electricity normally for use.

[0041] As Figure 5 shown, the pin fixing portion 2 is further provided with an anti-reverse insertion structure 10 and a detection window 11, and the anti-reverse insertion structure 10 is provided at the front end of the first fully enclosed fixing structure 3. The detection window 11 is used to detect the opening size of the terminal body 1. The anti-reverse insertion structure 10 is a baffle provided on both sides of the terminal body 1. When the angle of assembling the terminal body 1 and the connector is correct, the baffle can smoothly enter the connector. When the angle of assembling the terminal body 1 and the connector is abnormal, the baffle forms interference with the plastic housing structure, preventing the terminal from being assembled in place, and the anti-reverse insertion function can be realized.

[0042] Embodiment 2

[0043] In order to enable the pin to be inserted more smoothly into the pin fixing portion 2, on the basis of Embodiment 1, as Figures 6-9 shown, a fixing piece 14 is provided on the anti-oblique insertion structure 7. The fixing piece 14 is bent outward. An arch-shaped member 15 is provided on the terminal elastic arm 5. An opening is formed between the arch-shaped member 15 and the terminal elastic arm 5. One end of the fixing piece 14 is integrally formed with the anti-oblique insertion structure 7, and the other end of the fixing piece 14 is movably arranged in the opening formed between the arch-shaped member 15 and the terminal elastic arm 5.

[0044] As Figure 7As shown, the fixed insert piece 14 at least includes an initial state. In the initial state, the pin is not inserted into the terminal body 1. The movable end of the fixed insert piece 14 is set in a hook shape, and the movable end of the fixed insert piece 14 is hooked in the opening formed between the arched piece 15 and the terminal elastic arm 5.

[0045] As Figure 8 shown, the fixed insert piece 14 further includes a first use state. In the first use state, the front end part of the pin is inserted into the terminal body 1, and the front end of the pin jacks up the anti-slanting insertion structure 7 upward, so that the fixed insert piece 14 rotates leftward and upward. The movable end of the fixed insert piece 14 drives the terminal elastic arm 5 to move upward, providing a receiving space for the insertion of the pin. And the movable end of the fixed insert piece 14 gradually disengages from the opening formed between the arched piece 15 and the terminal elastic arm 5. The movable end of the fixed insert piece 14 drives the terminal elastic arm 5 to move upward, thereby increasing the receiving space between the pin fixing part 2 and the terminal elastic arm 5. The front end of the pin can smoothly enter this receiving space. The fixed insert piece 14 assists the pin to jack up the terminal elastic arm 5, reducing the insertion force of the pin and avoiding damage to the pin.

[0046] As Figure 9 shown, the fixed insert piece 14 further includes a second use state. In the second use state, the front end of the pin is completely inserted into the terminal body 1, and the movable end of the fixed insert piece 14 completely disengages from the opening formed between the arched piece 15 and the terminal elastic arm 5, enabling the terminal elastic arm 5 to rebound downward and abut against the pin. When the pin is completely inserted, the fixed insert piece 14 disengages from the terminal elastic arm 5. At this time, the terminal elastic arm 5 can rebound and abut against the upper end face of the pin, limiting the pin to prevent the pin from disengaging from the terminal body 1. And the terminal elastic arm 5 is protected by the bending protection arm 6, preventing the terminal elastic arm 5 from excessive deformation, restricting the deformation degree of the terminal elastic arm 5, avoiding the elastic force failure of the bending protection arm 6, so that the bending protection arm 6 always abuts against the pin, and the pin is restricted and fixed in the pin fixing part 2.

[0047] Although the present invention has been described in detail with general descriptions and specific embodiments above, on the basis of the present invention, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of the present invention claimed.

Claims

1. A fully enclosed anti-deformation and anti-slanting terminal connector, characterized in that: The invention comprises a terminal body (1), the terminal body (1) is open on the left and right sides, and the terminal body (1) is provided with a pin fixing part (2), the front end of the top surface of the pin fixing part (2) is provided with a first fully enclosed fixing structure (3), the rear end of the top surface of the pin fixing part (2) is provided with a second fully enclosed fixing structure (4), the first fully enclosed fixing structure (3) is provided with a terminal elastic arm (5) and a bending protection arm (6), the terminal elastic arm (5) and the bending protection arm (6) are integrally formed with the first fully enclosed fixing structure (3), the bending protection arm (6) is arranged above the terminal elastic arm (5), the second fully enclosed fixing structure (4) is provided with an anti-oblique insertion structure (7), and the anti-oblique insertion structure (7) is integrally formed with the second fully enclosed fixing structure (4).

2. The fully enclosed anti-deformation and anti-slanting terminal connector according to claim 1, characterized in that: The bending protection arm (6) includes a horizontal arm (601) and a bending arm (602), and the bending arm (602) is inclined downward, and the inclined state of the bending arm (602) includes at least a first state, a second state and a third state, and in the first state, the bending arm (602) is inclined above the terminal elastic arm (5), in the second state, the bending arm (602) is vertically arranged above the terminal elastic arm (5), and in the third state, the bending arm (602) is parallel to and attached to the terminal elastic arm (5).

3. The fully enclosed anti-deformation and anti-slanting terminal connector according to claim 1, characterized in that: The first all-enclosed fixing structure (3) and the second all-enclosed fixing structure (4) are both formed by enclosing an inner plate and an outer plate, the outer plate is provided with an outer notch (12), the inner plate is provided with an inner protrusion (13), and the inner protrusion (13) is engaged in the outer notch (12).

4. The fully enclosed anti-deformation and anti-slanting terminal connector according to claim 1, characterized in that: The rear end of the plug pin fixing portion (2) and the inner side surface of the terminal elastic arm (5) are both provided with guide protrusions (8); the plug pin is inserted into the plug pin fixing portion (2) along the guide protrusions (8) and is squeezed and fixed in the plug pin fixing portion (2) by the terminal elastic arm (5).

5. The fully enclosed anti-deformation and anti-slanting terminal connector according to claim 1, characterized in that: The bottom surface of the pin fixing portion (2) is provided with a barb fixing structure (9), and the terminal body (1) is plugged and fixed to the connector via the barb fixing structure (9).

6. The fully enclosed anti-deformation and anti-slanting terminal connector according to claim 1, characterized in that: The pin fixing portion (2) is also provided with an anti-reverse insertion structure (10) and a detection window (11), and the anti-reverse insertion structure (10) is arranged at the front end of the first all-inclusive fixing structure (3), and the detection window (11) is used to detect the opening size of the terminal body (1).

7. The fully enclosed anti-deformation and anti-slanting terminal connector according to claim 1, characterized in that: The anti-oblique insertion structure (7) is provided with a fixed insert (14), the fixed insert (14) is bent outwardly, the terminal elastic arm (5) is provided with an arched piece (15), an opening is formed between the arched piece (15) and the terminal elastic arm (5), one end of the fixed insert (14) is integrally formed with the anti-oblique insertion structure (7), and the other end of the fixed insert (14) is movably arranged in the opening formed between the arched piece (15) and the terminal elastic arm (5).

8. The fully enclosed anti-deformation and anti-slanting terminal connector according to claim 7, characterized in that: The fixed plug (14) includes at least an initial state, and in the initial state, the plug pin is not inserted into the terminal body (1), and the movable end of the fixed plug (14) is hooked in the opening formed between the arch (15) and the terminal elastic arm (5).

9. The fully enclosed anti-deformation and anti-slanting terminal connector according to claim 7, characterized in that: The fixed plug (14) also includes a first use state, and in the first use state, the front end of the plug pin is inserted into the terminal body (1), and the front end of the plug pin pushes up the anti-slant insertion structure (7), so that the fixed plug pin (14) rotates to the upper left, and the movable end of the fixed plug pin (14) drives the terminal elastic arm (5) to move upward to provide an accommodating space for the insertion of the plug pin, and the movable end of the fixed plug pin (14) gradually disengages from the opening formed between the arch (15) and the terminal elastic arm (5).

10. The fully enclosed anti-deformation and anti-slanting terminal connector according to claim 7, characterized in that: The fixed plug (14) also includes a second use state, and in the second use state, the front end of the plug pin is completely inserted into the terminal body (1), and the movable end of the fixed plug (14) is completely separated from the opening formed between the arch (15) and the terminal elastic arm (5), so that the terminal elastic arm (5) can rebound downward and rest against the plug pin.

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