Sheath structure of automobile wire harness connector

Abstract

The utility model relates to an automobile wire harness connector sheath structure, and belongs to the technical field of automobile connectors. Comprising a female terminal sheath and a male terminal sheath. The side wall of the male terminal sheath is provided with a clamping groove, and the side wall of the female terminal sheath is correspondingly provided with a clamping arm. Transverse limiting grooves and limiting teeth are arranged in the clamping grooves; clamping blocks are arranged at the tail ends of the clamping arms, and the clamping blocks are connected with the clamping grooves; the inner surface of the clamping block is provided with a protruding block connected with the transverse limiting groove in a clamped mode, and the protruding block is provided with meshing teeth meshed with the limiting teeth. The clamping arms are arranged on the two sides of the female terminal sheath, the male terminal sheath can be tightly clamped during mutual matching, shaking during mechanical vibration is avoided, friction between the male terminal and the female terminal is greatly reduced, meanwhile, the male terminal sheath is correspondingly provided with the clamping grooves, on one hand, mutual matching between the male terminal sheath and the female terminal sheath is facilitated, and on the other hand, the female terminal sheath is prevented from shaking during mechanical vibration. And on the other hand, the electrical connection between the male terminal and the female terminal can be stabilized from multiple directions, so that the problem of transient interruption of signals is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of automobile wire harness connector sheath structure, belong to automobile connector technical field. BACKGROUND

[0002] In the existing automobile wire harness connector technology, the sheath structure of male terminal and female terminal is often used to ensure the stable connection between terminals to realize the transmission of signals and the normal operation of electrical equipment. In order to ensure the smooth insertion and mutual matching of male terminal and female terminal, as shown in Figure 6 and Figure 7 , the size of female terminal sheath is usually designed to be slightly smaller than the size of male terminal sheath, i.e. the size A between the two side walls of female terminal sheath is smaller than the size B between the two side walls of male terminal sheath. This size design can provide a certain fit when initially plugged, but in actual use, especially when the vehicle is running, the vehicle may be affected by various mechanical vibrations.

[0003] In the mechanical vibration test, the male-female sheath structure often shows slight shaking. Due to the size difference between the male terminal sheath and the female terminal sheath, relative movement may occur between the sheaths when vibrating, which will cause frequent friction between the male terminal and the female terminal. With the passage of time, this friction will cause wear on the surface of the terminal, affecting the electrical performance of the contact surface. More seriously, the friction between the terminals may cause instability in signal transmission, especially under high-frequency vibration, the friction will cause transient interruption of signals. For a vehicle in motion, transient interruption of signals may cause abnormality of electrical system, resulting in operational error or failure of the vehicle, endangering driving safety. Therefore, how to improve the sheath structure to reduce the impact of vibration on terminal connection has become an important technical problem in the design of current automobile wire harness connector. SUMMARY

[0004] The utility model aims at overcoming the deficiencies in the prior art and providing an automobile wire harness connector sheath structure to solve the following technical problems: the current design of automobile connector sheath causes shaking of male-female sheaths in a mechanical vibration environment, which intensifies the friction between male and female terminals. This friction between terminals will cause transient interruption of signals, causing failure of the vehicle in motion.

[0005] To solve the above technical problems, the utility model is implemented by using the following technical scheme:

[0006] An automobile wire harness connector sheath structure, comprising: a male terminal sheath and a female terminal sheath inserted into the mating end of the male terminal sheath along the mating direction; the two side walls of the male terminal sheath near the mating end are provided with clamping grooves, and the two side walls of the female terminal sheath are provided with clamping arms corresponding to the clamping grooves;

[0007] Wherein, the clamping groove is provided with a transverse limiting groove at one end close to the butt joint end, and is provided with a limiting tooth at the other end away from the butt joint end; the end of the clamping arm is provided with a clamping block, which is engaged with the clamping groove; the inner surface of the clamping block is provided with a protrusion engaged with the transverse limiting groove, and the protrusion is provided with an engaging tooth engaged with the limiting tooth.

[0008] Further, the clamping groove is provided along the butt joint direction.

[0009] Further, the transverse limiting groove and the limiting tooth are provided on the same bottom surface of the clamping groove.

[0010] Further, the inner surface of the clamping block is in contact with the side wall surface of the male terminal sheath.

[0011] Further, the inside of the transverse limiting groove is provided with a chamfer.

[0012] Further, the inner surface of the clamping groove of the male terminal sheath is in contact with the inner surface of the protrusion of the clamping arm of the female terminal sheath.

[0013] Further, the limiting tooth is provided with an inclination angle, and the direction of the limiting tooth is the butt joint direction of the male terminal sheath and the female terminal sheath.

[0014] Further, the engaging tooth is provided with an inclination angle, and the inclination angle is the same as that of the limiting tooth.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The female terminal sheath provided in the application is provided with clamping arms on both sides, which can tightly clamp the male terminal sheath when matched, avoid shaking when the machine vibrates, greatly reduce the friction between the male and female terminals, and correspondingly provide clamping grooves on both sides of the male terminal sheath, which is convenient for matching the female terminal sheath, and can stably connect the male and female terminals in multiple directions, thereby greatly avoiding the problem of instantaneous interruption of signals. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0018] Figure 1 It is a whole structure schematic view of the automobile wire harness connector sheath structure provided in the embodiment one of the utility model;

[0019] Figure 2 Figure 1 is a schematic diagram of a clamping groove of a male terminal sheath in a sheath structure of an automobile wiring harness connector according to an embodiment of the present application;

[0020] Figure 3 Figure 2 is a schematic diagram of a planar structure of a clamping arm of a female terminal sheath in the sheath structure of the automobile wiring harness connector according to the embodiment of the present application;

[0021] Figure 4 Figure 3 is a schematic diagram of a three-dimensional structure of the clamping arm of the female terminal sheath in the sheath structure of the automobile wiring harness connector according to the embodiment of the present application;

[0022] Figure 5 Figure 4 is a schematic diagram of a male terminal sheath structure of the sheath structure of the automobile wiring harness connector according to an embodiment of the present application;

[0023] Figure 6 Figure 5 is a schematic diagram of a structure of an existing female terminal sheath;

[0024] Figure 7 Figure 6 is a schematic diagram of a structure of an existing male terminal sheath.

[0025] Mark 1, female terminal sheath; 11, clamping arm; 111, clamping block; 112, protruding block; 113, meshing tooth; 2, male terminal sheath; 21, clamping groove; 211, transverse limiting groove; 212, limiting tooth; 3, elastic structure. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely 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 disclosure / the present application, not all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Embodiment I:

[0027] As shown in Figures 1 to 4 , the present embodiment provides a sheath structure of an automobile wiring harness connector, comprising: a female terminal sheath 1 and a male terminal sheath 2 which are butted in a butt direction; a side wall of the male terminal sheath 2 is provided with a clamping groove 21, and a side wall of the female terminal sheath 1 is provided with a clamping arm 11;

[0028] Among them, a transverse limiting groove 211 is provided at one end of the clamping groove 21 close to the docking end of the male terminal sleeve 2, and a limiting tooth 212 is provided at the other end of the clamping groove 21 away from the docking end of the male terminal sleeve 2; a clamping block 111 is provided at the end of the clamping arm 11, and the clamping block 111 is engaged with the clamping groove 21; the inner surface of the clamping block 111 is provided with a protrusion 112 that is clamped with the transverse limiting groove 211.

[0029] A clamping groove 21 is provided on the side wall of the male terminal sleeve 2, and the clamping groove 21 extends along the docking direction. The side wall of the female terminal sleeve 1 is correspondingly provided with a clamping arm 11, which is convenient for clamping the male terminal sleeve 2 during docking; wherein, the clamping groove 21 is further optimized, and a transverse limit groove 211 and a limit tooth 212 are added. The function of the transverse limit groove 211 is to provide a precise guide path when the terminals are plugged in, ensuring smooth docking between the male terminal and the female terminal, while avoiding displacement or skew during insertion.

[0030] like Figure 2 As shown, the transverse limiting groove 211 and the limiting teeth 212 are arranged on the same bottom surface; the transverse limiting groove 211 is arranged on the bottom surface of the clamping groove 21. When the clamping block 111 of the clamping arm 11 engages with the clamping groove 21, it is guided by the transverse limiting groove 211 and engages with the clamping groove 21, so that the inner surface of the clamping groove 21 of the male terminal housing 2 contacts the inner surface of the protrusion 112 of the clamping arm 11 of the female terminal housing 1. The transverse limiting groove 211 is provided with a chamfered interior to facilitate the stable insertion of the protrusion 112 of the clamping arm 11.

[0031] like Figure 2 As shown, a limiting tooth 212 is also provided inside the clamping groove 21 to provide additional mechanical limitation to prevent the terminal from loosening or falling off during insertion or use; and the limiting tooth 212 is provided with an inclination angle, and the direction of the limiting tooth 212 is the docking direction of the male terminal sleeve 2 and the female terminal sleeve 1, and the corresponding limiting tooth 212 on the protrusion 112 is provided with an engaging tooth 113 with the same inclination angle, so that the engaging teeth 113 on the protrusion 112 can be engaged and clamped with the limiting teeth 212 one by one when the protrusion 112 is pushed in, and after it is fully clamped, the inclined limiting teeth 212 can be used to limit the clamping block 111 to prevent rebound, and at the same time, cooperate with the transverse limiting groove 211 to make the clamping of the clamping arm 11 more stable.

[0032] The clamping arm 11 is designed in a rectangular structure, and the end thereof is provided with a clamping block 111. The clamping block 111 is engaged with the clamping groove 21 of the male terminal sheath 2 to ensure the stability and firmness of the connection. In order to further enhance the clamping accuracy and stability, the surface of the clamping block 111 is provided with a protrusion 112, which is engaged with the transverse limiting groove 211 in the clamping groove 21 of the surface of the male terminal sheath 2 to realize accurate clamping cooperation, thereby playing a role of stable connection, guiding positioning and preventing sliding during the insertion process.

[0033] The inner surface of the clamping block 111 is in contact with the side wall surface of the male terminal sheath 2, which is to give the clamping arm 11 an elastic force, i.e. when the male terminal sheath 2 and the female terminal sheath 1 are not inserted, the clamping arm 11 naturally falls down and is spaced apart from the side wall surface of the female terminal sheath 1; when the female terminal sheath 1 and the male terminal sheath 2 are inserted, the clamping arm 11 is elastically deformed under the action of external force, so that the clamping arm 11 has a force continuously abutting against the side wall of the male terminal sheath 2, thereby enabling the protrusion 112 on the clamping block 111 of the clamping arm 11 to be clamped into the clamping groove 21, and enabling the engagement teeth 113 thereon to be engaged with the limiting teeth 212.

[0034] As shown in Figure 4 The clamping arm 11 is designed in a rectangular structure, and the end thereof is provided with a clamping block 111. The clamping block 111 is engaged with the clamping groove 21 of the male terminal sheath 2 to ensure the stability and firmness of the connection. In order to further enhance the clamping accuracy and stability, the surface of the clamping block 111 is provided with a protrusion 112, which is engaged with the transverse limiting groove 211 in the clamping groove 21 of the surface of the male terminal sheath 2 to realize accurate clamping cooperation, thereby playing a role of stable connection, guiding positioning and preventing sliding during the insertion process. Embodiment Two:

[0035] In this embodiment, the scheme opposite to that of Embodiment One is provided, i.e. the clamping arm 11 on the surface of the female terminal sheath 1 is cancelled, as shown in Figure 5As shown, the clamping grooves 21 on the surface of the male terminal sheath 2 in Embodiment One are changed into elastic structures 3, which are distinguished in that the elastic structures 3 are suspended arch structures. When the male terminal sheath 2 and the female terminal sheath 1 are not connected, the elastic structures 3 are in a natural state of protruding inwardly relative to the side wall surface of the male terminal sheath 2, and the spacing between the two elastic structures 3 is less than the spacing between the two side walls of the female terminal sheath 1. During the process of inserting the female terminal sheath 1 into the male terminal sheath 2, the elastic structures 3 can continuously elastically press against the side wall surface of the female terminal sheath 1 under the action of external force and elastic restoring force, thereby providing the same clamping effect as Embodiment One.

[0036] In the description of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "mounting", "connected", "connection" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present disclosure / application can be understood according to the specific circumstances.

[0037] The above is only the preferred embodiment of the present application, and it should be noted that for those skilled in the art, without departing from the technical principles of the present application, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. An automotive wiring harness connector sheath structure, characterized in that: include: A male terminal sheath (2) and a female terminal sheath (1) inserted into the butting end of the male terminal sheath (2) along the butting direction; the male terminal sheath (2) is provided with clamping grooves (21) on both side walls close to the butting end, and the female terminal sheath (1) is provided with clamping arms (11) on both side walls corresponding to the clamping grooves (21); The clamping groove (21) is provided with a transverse limiting groove (211) at one end close to the butt end, and a limiting tooth (212) is provided at the other end of the clamping groove (21) away from the butt end; a clamping block (111) is provided at the end of the clamping arm (11), and the clamping block (111) is engaged with the clamping groove (21); the inner surface of the clamping block (111) is provided with a protrusion (112) that is engaged with the transverse limiting groove (211), and the protrusion (112) is provided with an engaging tooth (113) that engages with the limiting tooth (212).

2. The automotive wiring harness connector sheath structure according to claim 1, characterized in that: The clamping groove (21) is extended along the docking direction.

3. The automotive wiring harness connector sheath structure according to claim 1, characterized in that: The transverse limiting groove (211) and the limiting teeth (212) are arranged on the same bottom surface of the clamping groove (21).

4. The automotive wiring harness connector sheath structure according to claim 1, characterized in that: The inner surface of the clamping block (111) contacts the side wall surface of the male terminal sheath (2).

5. The automotive wiring harness connector sheath structure according to claim 1, characterized in that: The interior of the transverse limiting groove (211) is provided with a chamfer.

6. The automotive wiring harness connector sheath structure according to claim 1, characterized in that: The inner surface of the clamping groove (21) of the male terminal shield (2) contacts the inner surface of the protrusion (112) of the clamping arm (11) of the female terminal shield (1).

7. The automotive wiring harness connector sheath structure according to claim 1, characterized in that: The limiting teeth (212) are provided with an inclination angle, and the direction of the limiting teeth (212) is the docking direction of the male terminal sheath (2) and the female terminal sheath (1).

8. The automotive wiring harness connector sheath structure according to claim 7, characterized in that: The meshing teeth (113) are provided with an inclination angle, and the inclination angle is the same as the inclination angle of the limiting teeth (212).

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