WO2024066294A1

WO2024066294A1 - Terminal, electrical connector, wire harness, and vehicle

Info

Publication number: WO2024066294A1
Application number: PCT/CN2023/088347
Authority: WO
Inventors: 柯宗云
Original assignee: 比亚迪股份有限公司
Priority date: 2022-09-30
Filing date: 2023-04-14
Publication date: 2024-04-04
Also published as: CN218472323U; TWM649938U

Abstract

A terminal (100), an electrical connector (200), a wire harness (300) and a vehicle (400). The terminal (100) comprises a body (1), wherein the body (1) comprises an insertion-fit portion (11); an insertion-fit cavity (110) is defined by the insertion-fit portion (11); a peripheral side cavity wall (S) along the insertion-fit portion (11) has a first end (110a) and a second end (110b); the peripheral side cavity wall (S) has a first fitting region (S5); the first fitting region (S5) is located between the first end (110a) and the second end (110b); and the first end (110a) is in limit fit with the first fitting region (S5).

Description

Terminals, electrical connectors, wiring harnesses and vehicles

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is based on the Chinese patent application with application number 202222641544.9 and application date September 30, 2022, and claims the priority of the above-mentioned Chinese patent application. The entire content of the above-mentioned Chinese patent application is hereby introduced into this application as a reference.

Technical Field

The present application relates to the technical field of wire harness connection, and in particular to a terminal, an electrical connector, a wire harness and a vehicle.

Background technique

With the development of the connector industry, square terminals have been widely used as a development direction of line-end connectors, with the characteristics of low cost and excellent performance. In related technologies, the terminal's bearing capacity is limited, making the terminal easy to deform after being subjected to external force, or the terminal is easy to deform after being plugged in and out of the connector, affecting the terminal's reuse.

Summary of the invention

The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a terminal having good structural stability.

The present application also provides an electrical connector having the above-mentioned terminal.

The present application also provides a wiring harness having the electrical connector.

The application also provides a vehicle having the wiring harness.

According to the terminal of the first aspect embodiment of the present application, it includes: a main body, the main body includes a mating part, the mating part is surrounded by a mating cavity, the cavity wall along the circumferential side of the mating part has a first end and a second end, and the cavity wall has a first mating area, the first mating area is located between the first end and the second end, the first end is limitedly engaged with the first mating area, and the second end is inserted into the mating cavity.

According to the terminal of the embodiment of the present application, the structural stability of the mating cavity is effectively improved and the deformation of the mating cavity is reduced by limiting the first end of the lateral cavity wall of the mating portion with the first mating area located between the first end and the second end. This facilitates the mating cavity to always maintain its initial shape under the action of external force, or even if the mating cavity is deformed, the deformation is small, so as to effectively ensure repeated use of the terminal.

In some embodiments, the first matching area is provided with a first limiting portion, the first end is provided with a second limiting portion, and the first limiting portion and the second limiting portion are limitedly matched.

In some embodiments, one of the first limiting portion and the second limiting portion is a limiting protrusion, and the other is a limiting groove or a limiting hole.

In some embodiments, the circumferential cavity wall also has a second mating area, the second mating area is located between the first end and the second end and is spaced apart from the first mating area, the second mating area is provided with a third limiting portion, the second end is arranged on the inner side of the second mating area, and the second end is provided with a fourth limiting portion, and the fourth limiting portion is limitedly matched with the third limiting portion.

In some embodiments, there are multiple third limiting portions, and the multiple third limiting portions are arranged at intervals along the axial direction of the mating cavity.

In some embodiments, the main body further includes a guide portion, which is disposed on the peripheral cavity wall and is used to guide the installation direction of the mating portion so that the mating portion is suitable for mating with the housing along the axial direction of the mating cavity.

In some embodiments, a cutout is formed on the peripheral cavity wall, and the guide portion is a guide plate, and one end of the guide plate is connected to a side edge of the cutout.

In some embodiments, the mating portion has an elastic arm and a stop member, the elastic arm is disposed in the mating cavity and extends axially along the mating cavity, the elastic arm has a contact portion for electrically contacting the first connecting member, and the stop member is configured such that: when the contact portion is in electrical contact with the first connecting member, a force is applied to the elastic arm toward the first connecting member.

In some embodiments, the stop member is cantilevered and includes a stop portion and a first connecting portion, the stop portion is arranged on one side of the elastic arm in the first direction, the first connecting portion is connected to the cavity wall of the mating cavity in the second direction, and the first direction is perpendicular to the second direction.

In some embodiments, the first connecting portion extends along the first direction, and the first connecting portion is directly connected to the stop portion; alternatively, the stop member further includes a second connecting portion, which extends axially along the mating cavity and connects the stop portion and the first connecting portion.

In some embodiments, the terminal is an integrally formed part.

In some embodiments, the circumferential cavity wall includes a first cavity wall, a second cavity wall, a third cavity wall and a fourth cavity wall, the first cavity wall and the second cavity wall are arranged opposite to each other along a first direction, the third cavity wall and the fourth cavity wall are respectively arranged on opposite sides of the second cavity wall in the second direction, the first cavity wall includes a first top wall and a second top wall, the first top wall is arranged on the side of the second top wall facing away from the second cavity wall, the third cavity wall connects the first top wall and the second cavity wall, and the fourth cavity wall connects the second top wall and the second cavity wall, wherein the end of the first top wall away from the third cavity wall is the first end, and the end of the second top wall away from the fourth cavity wall is the second end, the first mating area is formed in the adjacent area of the second top wall and the fourth cavity wall, the first direction is perpendicular to the second direction, and the first direction and the second direction are both perpendicular to the mating area. The axis of the cavity is vertical.

In some embodiments, the first mating area is provided with a first limiting portion, the first limiting portion includes a first part and a second part, the first part is provided on the second top wall, and the second part is provided on the fourth cavity wall; or, the first limiting portion is provided on the second top wall and close to the fourth cavity wall; or, the first limiting portion is provided on the fourth cavity wall and close to the second top wall.

An electrical connector according to an embodiment of a second aspect of the present application includes: a housing; and a terminal, wherein the terminal is the terminal according to the embodiment of the first aspect of the present application and cooperates with the housing.

The electrical connector according to the embodiment of the present application has good reliability in use by adopting the above-mentioned terminal.

A wiring harness according to an embodiment of a third aspect of the present application includes: an electrical connector, which is the electrical connector according to the embodiment of the second aspect of the present application; and electric wires, which are electrically connected to the terminals.

According to the wiring harness of the embodiment of the present application, the connection is stable and reliable by adopting the above-mentioned electrical connector.

A vehicle according to an embodiment of the fourth aspect of the present application includes a wiring harness according to an embodiment of the third aspect of the present application.

The vehicle according to the embodiment of the present application has good safety in use by adopting the above-mentioned wiring harness.

Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and/or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

FIG1 is a schematic diagram of a terminal according to an embodiment of the present application;

FIG2 is another schematic diagram of the terminal shown in FIG1 ;

FIG3 is another schematic diagram of the terminal shown in FIG1 ;

FIG4 is another schematic diagram of the terminal shown in FIG1 ;

FIG5 is another schematic diagram of the terminal shown in FIG1 ;

Fig. 6 is a cross-sectional view along line M-M in Fig. 5;

FIG7 is another schematic diagram of the terminal shown in FIG1 ;

Fig. 8 is a cross-sectional view along line N-N in Fig. 7;

FIG9 is a schematic diagram of an electrical connector according to an embodiment of the present application;

FIG10 is a schematic diagram of a wiring harness according to an embodiment of the present application;

FIG. 11 is a schematic diagram of a vehicle according to an embodiment of the present application.

Reference numerals:
Terminal 100, slot 100a, housing 101, electrical connector 200, wire 201, wiring harness 300, vehicle 400,
Main body 1,
The mating portion 11, the mating cavity 110, the first end 110a, the second end 110b, the second limiting portion 110c, the fourth limiting portion 110d, the circumferential cavity wall S, the cutout S0, the first cavity wall S1, the first top wall S11, the second top wall S12, the second cavity wall S2, the protrusion S21, the third cavity wall S3, the fourth cavity wall S4, the first matching area S5, the first limiting portion S51, the second matching area S6, the third limiting portion S61, the elastic arm 111, the stop member 112, the stop portion 1121, the first connecting portion 1122, the fixed end 111a, the free end 111b, the contact portion 111c, the guide portion 12, the crimping portion 13, the conductor crimping portion 131, the insulating crimping portion 132, and the baffle 14.

Detailed ways

The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and/or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and/or settings discussed in itself. In addition, the various specific processes and examples of materials provided by the present application, but those of ordinary skill in the art can appreciate the applicability of other processes and/or the use of other materials.

Hereinafter, a terminal 100 according to an embodiment of the present application will be described with reference to the accompanying drawings.

As shown in FIGS. 1 to 4 , the terminal 100 includes a main body 1, the main body 1 includes a mating portion 11, the mating portion 11 is surrounded by a mating cavity 110, and the circumferential cavity wall S along the mating portion 11 has a first end 110a and a second end 110b, and the circumferential cavity wall S has a first mating area S5, the first mating area S5 is located between the first end 110a and the second end 110b, the second end 110b is inserted into the mating cavity 110, and the first end 110a is limitedly matched with the first mating area S5, so that the mating cavity 110 has good structural stability. For example, in the examples of FIGS. 1 and 2 , the first end 110a is wrapped around at least part of the outside of the first mating area S5, and the first end 110a is located outside the first mating area S5 in the radial direction of the mating cavity 110, and at this time, the first end 110a can be a material tail.

It can be seen that the first end 110a is limitedly matched with the first matching area S5, so that the first end 110a and the first matching area S5 remain relatively stationary in at least one direction, so as to effectively improve the structural stability of the mating cavity 110 and reduce the deformation of the mating cavity 110, so that under the action of external force, such as the external force applied to the terminal 100 during installation in the housing 101, or the external force applied to the terminal 100 during the plugging and unplugging process between the terminal 100 and the connector, the mating cavity 100 is convenient to be fixed. The original shape is always maintained, or even if the mating cavity 110 is deformed, the deformation is small, so as to effectively ensure that the terminal 100 can be used repeatedly.

Therefore, even if the thickness of the circumferential cavity wall S is small, making the mating portion 11 relatively thin, the cooperation between the first limiting portion S51 and the second limiting portion 110c in the present application can ensure the stability of the structure of the mating cavity 110.

It can be seen that when the mating part 11 is a bent part, before the mating part 11 is formed, for the component used to form the mating part 11, the first end 110a and the second end 110b are respectively the opposite ends of the above-mentioned component, and the first end 110a can be the material tail (the end point of the terminal bending direction), and the second end 110b is the material head. The component can be roughly wound around the axial direction of the mating cavity 110 that is finally formed, so as to finally form the mating part 11 after a bending process, etc.; and the limiting cooperation between the first end 110a and the first mating area S5 facilitates the bending and forming of the mating part 11, and facilitates the first end 110a to be quickly bent to the correct position to prevent dislocation, which is beneficial to improving the processing efficiency of the mating part 11.

For example, in the examples of Figures 1 and 2, in the axial direction of the mating cavity 110, the first end 110a is limitedly matched with the first matching area S5, so that the first end 110a always remains stationary in the axial direction of the mating cavity 110 relative to the first matching area S5.

It should be noted that, in the present application, the radial direction of the mating cavity 110 is perpendicular to the axial direction of the mating cavity 110, that is, the radial direction of the mating cavity 110 refers to the direction passing through the central axis of the mating cavity 100 in the radial plane of the mating cavity 110; in the example of Figure 1, the axial direction of the mating cavity 110 is the front-to-back direction.

According to the terminal 100 of the embodiment of the present application, by providing a first limiting portion S51 on the circumferential cavity wall S of the mating cavity 110 and a second limiting portion 110c on the first end 110a, and making the first limiting portion S51 cooperate with the second limiting portion 110c, the structural stability of the mating cavity 110 is effectively improved, and the deformation of the mating cavity 110 is reduced. Therefore, under the action of external force, it is convenient for the mating cavity 100 to always maintain its initial shape, or even if the mating cavity 110 is deformed, the deformation is small, so as to effectively ensure the repeated use of the terminal 100.

In some embodiments, as shown in Figures 1 and 2, the first mating area S5 is provided with a first limiting portion S51, and the first end 110a is provided with a second limiting portion 110c. The first limiting portion S51 and the second limiting portion 110c are limited and matched to facilitate the mating of the first end 110a and the first mating area S5, thereby facilitating the processing of the terminal 100.

Optionally, in the examples of FIG. 1 and FIG. 2 , the first limiting portion S51 is integrally formed at the first matching area S5 , and the second limiting portion 110 c is integrally formed at the first end 110 a .

It can be understood that there are one or more first limiting parts S51 and one or more second limiting parts 110c, and the number of first limiting parts S51 and the number of second limiting parts 110c can be equal or unequal, so one first limiting part S51 can be matched with one second limiting part 110c, or one first limiting part S51 can be matched with multiple second limiting parts 110c, or multiple first limiting parts S51 can be matched with one second limiting part 110c.

When there are multiple first limiting portions S51, the multiple first limiting portions S51 can be arranged along the axial direction of the mating cavity 110. When there are multiple second limiting portions 110c, the multiple second limiting portions 110c can be arranged at intervals along the axial direction of the insertion cavity 110.

In some embodiments, as shown in Figures 1 and 2, one of the first limiting portion S51 and the second limiting portion 110c is a limiting protrusion, and the other of the first limiting portion S51 and the second limiting portion 110c is a limiting groove or a hole. The limiting protrusion is limitedly matched with the limiting hole, or the limiting protrusion is limitedly matched with the limiting groove, so as to realize the concave-convex coupling and mutual matching of the first limiting portion S51 and the second limiting portion 110c, and realize the limiting matching of the first limiting portion S51 and the second limiting portion 110c in the axial direction of the mating cavity 110, with a simple structure and convenient assembly.

For example, in the examples of FIG. 1 and FIG. 2 , the first limiting portion S51 is a limiting hole, and the second limiting portion 110c is a limiting protrusion. Of course, the first limiting portion S51 can also be a limiting protrusion, in which case the second limiting portion 110c is a limiting hole. Optionally, the remaining portion of the first end 110a except the second limiting portion 110c can abut against the first matching area S5.

Of course, in other embodiments, the structures of the first limiting portion S51 and the second limiting portion 110 c are not limited thereto, and it is only necessary to ensure that the first limiting portion S51 and the second limiting portion 110 c can achieve limiting in the axial direction of the mating cavity 110 .

In some embodiments, as shown in Figures 2-4, the circumferential cavity wall S also has a second mating area S6, the second mating area S6 is located between the first end 110a and the second end 110b, and the second mating area S6 is spaced apart from the first mating area S5, the second mating area S6 is provided with a third limiting portion S61, the second end 110b is provided on the inner side of the second mating area S6, at this time the second end 110b is a material head, the second end 110b is provided with a fourth limiting portion 110d, the fourth limiting portion 110d is limitedly matched with the third limiting portion S61, so that the third limiting portion S61 and the fourth limiting portion 110d remain relatively stationary in at least one direction, so as to further effectively improve the structural stability of the mating cavity 110, and further reduce the deformation of the mating cavity 110, so that under the action of external force, it is convenient for the mating cavity 100 to always maintain its initial shape, so as to effectively ensure the repeated use of the terminal 100. For example, in the axial direction of the mating cavity 110 , the third limiting portion S61 and the fourth limiting portion 110 d are limited and matched to facilitate the second end 110 b to always remain stationary relative to the second matching area S6 in the axial direction of the mating cavity 110 .

Therefore, even if the thickness of the circumferential cavity wall S is small, making the mating part 11 relatively thin, the cooperation of the third limiting part S61 and the fourth limiting part 110d in the present application can facilitate the stability of the structure of the mating cavity 110. It can be seen that when the mating part 11 is a bending part, the circumferential cavity wall S can be wound around the circumference of the mating cavity 110 for more than one circle; before the mating part 11 is formed, for the component used to form the mating part 11, the first end 110a and the second end 110b are the opposite ends of the above-mentioned component, and the component can be roughly wound around the axial direction of the mating cavity 110 formed in the end, so as to finally form the mating part 11 after the bending process; and the limiting cooperation of the third limiting part S61 and the fourth limiting part 110d facilitates the bending forming of the mating part 11, facilitates the rapid bending of the second end 110b to the accurate position, prevents misalignment, and is conducive to improving the processing efficiency of the mating part 11.

It can be understood that the third limiting portion S61 is one or more, and the fourth limiting portion 110d is one or more. The number of third limiting parts S61 and the number of fourth limiting parts 110d can be equal or unequal, so one third limiting part S61 can cooperate with one fourth limiting part 110d, or one third limiting part S61 can cooperate with multiple fourth limiting parts 110d, or multiple third limiting parts S51 can cooperate with one fourth limiting part 110d.

When there are multiple third limiting portions S61 , the multiple third limiting portions S61 can be arranged at intervals along the axial direction of the mating cavity 110 ; when there are multiple fourth limiting portions 110 d , the multiple fourth limiting portions 110 d can be arranged at intervals along the axial direction of the mating cavity 110 .

Among them, as shown in Figures 2-4, one of the third limiting portion S61 and the fourth limiting portion 110d is a limiting protrusion, and the other of the third limiting portion S61 and the fourth limiting portion 110d is a limiting groove or a limiting hole. The limiting protrusion is limitedly matched with the limiting hole or the limiting groove to achieve the axial limiting match between the third limiting portion S61 and the fourth limiting portion 110d in the mating cavity 110, with a simple structure and convenient assembly.

For example, in the examples of Figures 2 to 4, the third limiting portion S61 is a limiting hole, and the fourth limiting portion 110d is a limiting protrusion. Of course, the third limiting portion S61 can also be a limiting protrusion, and the fourth limiting portion 110d is a limiting hole.

Of course, in other embodiments, the structures of the third limiting portion S61 and the fourth limiting portion 110 d are not limited thereto, and it is only necessary to ensure that the third limiting portion S61 and the fourth limiting portion 110 d can achieve limiting in the axial direction of the mating cavity 110 .

In some embodiments, as shown in FIGS. 1-4 , there are multiple third limiting portions S61 , and the multiple third limiting portions S61 are arranged at intervals along the axial direction of the mating cavity 110 , so as to effectively ensure the structural stability of the entire mating cavity 110 in the axial direction.

For example, there are two third limiting portions S61 , and the first limiting portion S51 is disposed between the two third limiting portions S61 to further ensure the structural stability of the entire mating cavity 100 .

In some embodiments, as shown in Figures 1, 3 and 4, the main body 1 also includes a guide portion 12, which is provided on the circumferential cavity wall S, and is used to guide the installation direction of the mating portion 11, so that the mating portion 11 is suitable for axially matching with the shell 101 along the mating cavity 110, which is beneficial to avoid the incorrect assembly direction of the terminal 100 and the shell 101, resulting in damage to the terminal 100 and the shell 101 or low assembly efficiency, and facilitates the rapid installation of the terminal 100.

It can be understood that a mounting hole is formed on the shell 101, and the mating portion 11 is suitable for being mated in the mounting hole. A guide mating portion is provided on the peripheral wall of the mounting hole, and the guide mating portion extends along the axial direction of the mounting hole. During the process of installing the mating portion 11 in the mounting hole, the guide portion 12 can slide along the extension direction of the guide mating portion so that the mating portion 11 can be quickly mated with the mounting hole along the correct installation direction.

Optionally, the guide portion 12 is disposed adjacent to one axial end of the mating portion 11 , so as to guide the installation direction of the mating portion 11 when the mating portion 11 begins to be mated with the housing 101 , thereby further improving the installation efficiency of the terminal 100 .

In some embodiments, as shown in FIG. 1 , FIG. 3 and FIG. 4 , a cutout S0 is formed on the peripheral cavity wall S, and the guide portion 12 is a guide plate, one end of which is connected to one side edge of the cutout S0, so that the terminal 100 is conveniently connected to the terminal 100 at the beginning. When the housing 101 is formed, the guide portion 12 can play a guiding role to guide the installation direction of the mating portion 11, so as to further improve the installation efficiency of the terminal 100, and the guide portion 12 has a simple structure and is easy to process; at this time, the guide portion 12 can be stamped.

For example, in the processing step of the terminal 100, a punching tool can be used to punch a region of a suitable size at a suitable position of the peripheral cavity wall S, so that part of the edge of the region is punctured to form the guide portion 12, and the region corresponds to the cutout S0. Optionally, the shape of the cutout S0 can be a polygon, etc.

For example, in the examples of Figures 1, 3 and 4, the circumferential cavity wall S includes a first cavity wall S1, a second cavity wall S2, a third cavity wall S3 and a fourth cavity wall S4, the first cavity wall S1 includes a first top wall S11 and a second top wall S12, the first top wall S11 is arranged on the side of the second top wall S12 away from the second cavity wall S2, the third cavity wall S3 and the fourth cavity wall S4 are arranged opposite to each other and are both connected between the first cavity wall S1 and the second cavity wall S2; the incision S0 is formed on the first top wall S11, and the guide portion 12 extends from the edge of the incision S0 in a direction away from the second top wall S12.

In some embodiments, as shown in Figures 3, 4 and 6, the mating portion 11 has an elastic arm 111 and a stop member 112, the elastic arm 111 is provided in the mating cavity 110, and the elastic arm 111 extends axially along the mating cavity 110, the elastic arm 111 has a contact portion 111c for electrically contacting the first connecting member, and the stop member 112 is configured to apply a force on the elastic arm 111 toward the first connecting member when the contact portion 111c is in electrical contact with the first connecting member.

Therefore, by applying a force toward the first connecting member to the elastic arm 111 through the stop member 112, the contact force between the contact portion 111c and the first connecting member can be increased, which is beneficial to increase the friction force between the contact portion 111c and the first connecting member, thereby improving the reliability of the electrical contact between the contact portion 111c and the first connecting member, reducing the risk of separation between the mating portion 11 and the first connecting member 101, ensuring stable cooperation between the first connecting member and the terminal 100, and further ensuring the reliability and stability of the electrical connection between the terminal 100 and the first connecting member, meeting the plugging and unplugging requirements of the terminal 100 and the first connecting member.

It is understandable that when the elastic arm 111 is in electrical contact with the first connecting member, the stop member 112 directly or indirectly applies a force toward the first connecting member to the elastic arm 111 so that the elastic arm 111 tends to deflect toward the first connecting member. When the elastic arm 111 is not electrically connected to the first connecting member, the stop member 112 can directly or indirectly apply a force to the elastic arm 111 so that the elastic arm 111 has a tendency to deflect toward the position of the first connecting member where the elastic arm 111 completes the electrical connection. This allows the stop member 112 to provide a greater force when the elastic arm 111 completes the electrical connection with the first connecting member, thereby ensuring a reliable and stable electrical connection. Alternatively, when the elastic arm 111 is not electrically connected to the first connecting member, the stop member 112 can be spaced apart from or in contact with the elastic arm 111. In this case, the stop member 112 may not apply a force to the elastic arm 111, and only after the elastic arm 111 contacts the first connecting member does the stop member 112 apply a force to the elastic arm 111 to ensure a reliable connection between the elastic arm 111 and the first connecting member.

In short, during the entire process from the first connector beginning to cooperate with the elastic arm 111 to the first connector and the elastic arm 111 completing the electrical connection, the stop member 112 can directly or indirectly apply a force to the elastic arm 111 at any time. To increase the contact pressure between the elastic arm 111 and the first connecting member; it can be seen that when the contact portion 111c cooperates with the first connecting member, the stop member 112 is deformed due to the force applied by the first connecting member through the elastic arm 111, and the stop member 112 will apply a reaction force to the elastic arm 111, and the reaction force makes the elastic arm 111 have a movement tendency toward the first connecting member, thereby increasing the squeezing force between the elastic arm 111 and the first connecting member.

When the terminal 100 is used in the electrical connector 200, it can ensure that the electrical connector 200 is suitable for complex working conditions and complex usage environments (such as high-frequency vibration, hot and cold environments, high dust and high humidity environments, etc.), and still ensure the reliability and stability of the electrical connection of the electrical connector 200.

In some embodiments, as shown in Figures 3, 4 and 6, the stop member 112 is cantilevered, so that the stop member 112 has good deformation ability, which is convenient for applying a continuously increasing elastic force to the elastic arm 111, and when the first connecting member is installed, a suitable installation resistance can be applied to the first connecting member through the elastic arm 111. When the first connecting member is installed in place, a suitable elastic extrusion force can be applied to the first connecting member through the elastic arm 111, so as to improve the installation feel of the first connecting member while ensuring that the first connecting member and the elastic arm 111 are reliably connected; the structure is simple and the cost is low.

It can be seen that at least a portion of the stop member 112 extends into the mating cavity 110 . Compared with some technologies that add a stainless steel sleeve on the outside of the terminal to increase elasticity, the present application can save the space occupied by the terminal 100 and reduce the volume of the terminal 100 .

As shown in Fig. 3 and Fig. 4, the stop member 112 includes a stop portion 1121 and a first connection portion 1122, wherein the stop portion 1121 is disposed on one side of the elastic arm 111 in the first direction, and the first connection portion 1122 is connected to the cavity wall of the mating cavity 110 in the second direction (for example, the third cavity wall S3 and the fourth cavity wall S4 described below), then one end of the first connection portion 1122 away from the stop portion 1121 can be formed as a fixed end of the stop member 112, and one end of the stop portion 1121 away from the first connection portion 1122 can be formed as a free end of the stop member 112. The first direction and the second direction are perpendicular.

For example, the elastic arm 111 is cantilevered, and the elastic arm 111 has a fixed end 111a and a free end 111b, the contact portion 111c is located between the fixed end 111a and the free end 111b, a mating port is formed at one axial end of the mating cavity 110 (for example, the front end in FIG. 1 ), the first connector is suitable for mating with the mating cavity 110 from the mating port, the fixed end 111a is arranged close to the mating port relative to the free end 111b, and the first connecting portion 1122 can be located on the side of the contact portion 111c away from the fixed end 111a, or on the side of the contact portion 111c away from the free end 111b. Of course, the arrangement of the elastic arm 111 is not limited thereto, and the free end 111b can also be arranged close to the mating port relative to the fixed end 111a, and the first connecting portion 1122 can be located on the side of the contact portion 111c away from the fixed end 111a, or on the side of the contact portion 111c away from the free end 111b.

The following is an example in which the axial direction of the mating cavity 110 is the front-to-back direction, the first direction is the up-down direction, the second direction is the left-right direction, and the first direction and the second direction are both perpendicular to the axial direction of the mating cavity 110. After reading the following scheme, it is easy to understand other implementation schemes. In the examples of Figures 1, 3, 4 and 6, the elastic arm 111 extends in the front-to-back direction, the first connector is suitable for being plugged into the lower side of the elastic arm 111, for example, the first connector is suitable for contacting the lower surface of the contact portion 111c, the stop portion 1121 is arranged on the upper side of the elastic arm 111, the first connecting portion 1122 is located on the rear side of the contact portion 111c and is connected to the right side cavity wall of the mating portion 11, then the stop portion 1121 extends from the back to the front toward the contact portion 111c, and the stop member 112 is configured as follows: when the elastic arm 111 is in electrical contact with the first connector, the stop portion 1121 applies a downward force to the elastic arm 111 to increase the elastic contact force between the elastic arm 111 and the first connector, and ensure that the contact portion 111c and the first connector cooperate stably and reliably. Of course, the first connecting portion 1122 can also be arranged on the left side of the stop portion 1121 and connected to the left side cavity wall of the mating portion 11.

Optionally, the contact portion 111c protrudes downward, and the height of the contact portion 111c will change elastically with the size of the first connecting member to ensure that a stable connection is maintained when mechanical vibration or local damage and deformation occurs; the peripheral cavity wall S has a protrusion S21 that protrudes upward and is opposite to the contact portion 111c, so as to appropriately reduce the size of the plug-in space between the contact portion 111c and the peripheral cavity wall S, which is conducive to further increasing the extrusion force between the contact portion 111c and the first connecting member.

Compared with some technologies, in order to improve the connection reliability between the connector and the terminal, a support member arranged along the extension direction of the elastic arm is provided in the mating part. In the present application, a stop member 112 is provided to be connected to the cavity wall of the mating part 11 in the second direction, so that the stop member 112 extends to one side of the elastic arm 111 in a direction perpendicular to the extension direction of the elastic arm 111, so that the bearing capacity of the stop member 112 is stronger, which is conducive to the stop member 112 providing a stronger supporting force, thereby effectively improving the elastic contact force between the first connector and the elastic arm 111, and improving the reliability and stability of the connection between the terminal 100 and the first connector 101.

In some embodiments, there is one stop member 112; or, there are multiple stop members 112, two of which can be arranged in sequence along the second direction, and at this time, two of the stop members 112 can be arranged opposite or staggered along the second direction.

In some embodiments, as shown in Figures 3, 4 and 8, the axial length L of the stop portion 1121 in the mating cavity 110 is greater than the width W of the stop portion 1121 in the second direction, so that the stop portion 1121 has a suitable length, which is convenient for improving the elastic deformation ability of the stop portion 1121, thereby ensuring that the stop portion 1121 can exert an action toward the first connecting member with the elastic arm 111, while ensuring that the size of the force and the amount of change in the size of the force are appropriate, which is beneficial to improving the mating feel of the first connecting member.

In some embodiments, as shown in Figures 3 and 4, the first connecting portion 1122 extends along the first direction, and the first connecting portion 1122 is directly connected to the stop portion 1121. At this time, the stop member 112 can be roughly formed into an L-shaped structure. The stop member 112 has a simple structure, is easy to process, and has good elastic deformation ability.

At this time, the stopper 112 may be one or more. If the terminal 100 is an integrally formed part, for example, the terminal 100 may be formed by bending a metal plate multiple times, the thickness t of the stopper 1121 in the first direction may correspond to the thickness of the metal plate. At this time, the axial length l of the stop portion 1121 in the mating cavity 110 can be specifically set according to actual needs to adjust the force that the stop member 112 can apply, and the design of l＞t will not limit the molding method of the terminal 100.

Of course, the arrangement of the first connection portion 1122 is not limited thereto; for example, the first connection portion 1122 may also extend along the second direction, and in this case, the stop member 112 may be substantially formed as a flat plate structure.

In other embodiments, the first connecting portion 1122 extends along the first direction, and the stop member 112 also includes a second connecting portion, which extends axially along the mating cavity 110, and the second connecting portion connects the stop member 1121 and the first connecting portion 1122, which is beneficial to increase the total length of the stop member 112 and facilitate improving the deformation capacity of the stop member 112. It is also beneficial to make the stop member 112 gradually deform during the cooperation process between the first connecting member and the elastic arm 111, so as to increase the extrusion force between the elastic arm 111 and the first connecting member, and further make the first connecting member have a suitable installation resistance to ensure the installation feel.

At this time, the stop member 112 may be one or more; if the terminal 100 is an integrally formed part, the thickness of the stop portion 1121 in the axial direction of the mating cavity 110 may correspond to the thickness of the metal plate.

Of course, the setting of the stop member 112 in the present application is not limited to this; the stop member 112 can also be wrapped around the outside of the elastic arm 111 to increase the elasticity of the elastic arm 111, for example, the stop member 112 is a steel sheet.

In some embodiments, as shown in Figures 1 to 4, the terminal 100 is an integrally formed part, which is convenient for ensuring the structural strength and stability of the terminal 100 and is easy to process. For example, the terminal 100 is formed by bending and stamping a metal part multiple times.

In some embodiments, as shown in Figures 1-4, the circumferential cavity wall S includes a first cavity wall S1, a second cavity wall S2, a third cavity wall S3 and a fourth cavity wall S4. The first cavity wall S1 and the second cavity wall S2 are arranged opposite to each other along the first direction, and the third cavity wall S3 and the fourth cavity wall S4 are respectively arranged on the opposite sides of the second cavity wall S2 in the second direction. The first cavity wall S1 includes a first top wall S11 and a second top wall S12. The first top wall S11 is arranged on the side of the second top wall S12 facing away from the second cavity wall S2. The third cavity wall S3 connects the first top wall S11 and the second cavity wall S2. The fourth cavity wall S4 connects the second top wall S12 and the second cavity wall S2. The cross-sectional shape of the mating cavity 110 is roughly formed into a square. At this time, the terminal 100 can be formed into a square terminal, which is convenient for the bending and forming of the terminal 100.

The end of the first top wall S11 away from the third cavity wall S3 is the first end 110a, the end of the second top wall S12 away from the fourth cavity wall S4 is the second end 110b, the first matching area S5 is formed in the adjacent area of the second top wall S12 and the fourth cavity wall S4, and the first top wall S11 is wrapped around at least part of the outside of the second top wall S12. The first direction is perpendicular to the second direction, and the first direction and the second direction are both perpendicular to the axial direction of the mating cavity 110.

In some embodiments, as shown in FIG. 1 and FIG. 2 , the first matching area S5 is provided with a first limiting portion S51, and the first limiting portion S51 includes a first part and a second part, the first part is provided on the second top wall S12, and the second part is provided on the fourth cavity wall S4. For example, in the examples of FIG. 1 and FIG. 2 , the first limiting portion S51 is formed as a limiting hole, and the limiting hole A portion of the limiting hole is formed on the second top wall S12, and another portion of the limiting hole is formed on the fourth cavity wall S4, so as to reduce the weakening of the surrounding cavity wall S by the limiting hole.

Of course, the present application is not limited thereto. In other embodiments, the first limit portion S51 is disposed on the second top wall S12, and the first limit portion S51 is close to the fourth cavity wall S4. In still other embodiments, the first limit portion S51 is disposed on the fourth cavity wall S4, and the first limit portion S51 is close to the second top wall S12. Thus, the position setting of the first limit portion S51 is relatively flexible, and it is convenient to reasonably adjust the position of the first limit portion S51 according to actual needs.

In some embodiments, as shown in Figure 1, the main body 1 also includes a crimping portion 13, which is used to electrically connect to the second connector. The crimping portion 13 and the elastic arm 111 are arranged in sequence along the axial direction of the mating cavity 110. The crimping portion 13 includes a conductor crimping part 131 and an insulating crimping part 132. The conductor crimping part 131 and the insulating crimping part 132 are arranged in sequence along the axial direction of the mating cavity 110, and the conductor crimping part 131 is located between the mating cavity 110 and the insulating crimping part 132. The conductor crimping part 131 is used to fix and electrically connect the exposed part of the conductor of the second connector (for example, the front end of the conductor with the insulation skin stripped off the wire), and the insulating crimping part 132 is used to fix the part of the second connector with an insulating layer (for example, the rear insulating part of the wire wrapped with insulation skin) to keep the second connector fixed, so that the connection between the second connector and the crimping portion 13 is stable and reliable.

It can be seen that the main body 1 is used to electrically connect the first connecting member 101 and the second connecting member.

For example, in the examples of FIG. 1 , FIG. 3 and FIG. 4 , the crimping portion 13 is formed with a mounting groove, the mounting groove is used to accommodate the second connector, the conductor crimping portion 131 and the insulation crimping portion 132 are both roughly formed into a V-shaped structure, and the conductor crimping portion 131 and the insulation crimping portion 132 are both used to press the second connector onto the bottom wall of the mounting groove to ensure the electrical connection between the main body 1 and the second connector, thereby ensuring the relative fixation of the main body 1 and the second connector. The bottom wall of the mounting groove can be connected to a side cavity wall of the mating cavity 110, such as the second cavity wall S2.

The electrical connector 200 according to the second embodiment of the present application, as shown in FIG. 9 , comprises: a housing 101 and a terminal 100 , wherein the terminal 100 is the terminal 100 according to the first embodiment of the present application, and the terminal 100 cooperates with the housing 101 .

The electrical connector 200 according to the embodiment of the present application has good reliability in use by adopting the above-mentioned terminal 100 .

For example, the shell 101 is a plastic part, and a mounting hole is defined in the shell 101. A through opening is formed on the peripheral wall of the mounting hole, and a movable block is provided at the through opening. The terminal 100 is formed with a slot 100a, and the terminal 100 is plugged into the mounting hole, and the slot 100a is arranged opposite to the through opening. At this time, the block is matched with the through opening so that the block and the slot 100a are limitedly matched along a first direction to limit the displacement of the terminal 100 in the shell 101 along the axial direction of the mounting hole, so as to prevent the terminal 100 from being separated from the shell 101, thereby ensuring the stable cooperation between the terminal 100 and the shell 101; if the terminal 100 needs to be separated from the shell 101, the block can be taken out from the through opening first to release the restriction on the terminal 100, so as to facilitate the terminal 100 to be separated from the shell along the axial direction of the mounting hole. The body 101 realizes the detachable fit between the terminal 100 and the housing 101 .

Optionally, one axial side of the mating portion 11 can be used to form a card slot 100 a , so that when the terminal 100 is mated in the mounting hole, the card block can stop at one end of the mating portion 11 away from the mating port to limit the terminal 100 .

In some embodiments, a mounting hole is defined in the shell 101, and a locking protrusion is formed on the peripheral wall of the mounting hole. A baffle 14 is provided on the peripheral cavity wall S. The baffle 14 is inclined relative to the axial direction of the mating cavity 110, and the baffle 14 is cantilevered. The baffle 14 cooperates with the locking protrusion to limit the relative movement of the terminal 100 and the shell 101 in the axial direction of the mounting hole, preventing the terminal 100 from escaping from the shell 101, and ensuring the stable fit between the terminal 100 and the shell 101; during the installation of the terminal 100 in the shell 101, the baffle 14 is compressed and deformed to deflect toward the mating part 11, until the terminal 100 is installed in place, the baffle 14 returns to its initial state and stops against the locking protrusion.

For example, in the examples of Figures 1, 3 and 4, the terminal 100 is formed with a slot 100a, and the surrounding cavity wall S is provided with a baffle 14, so that the terminal 100 and the shell 101 can easily achieve double limit cooperation to effectively ensure that the terminal 100 is installed reliably.

The wiring harness 300 according to the third aspect embodiment of the present application, as shown in FIG. 10 , includes an electrical connector 200 and an electric wire 201 . The electrical connector 200 is the electrical connector 200 according to the second aspect embodiment of the present application. The electric wire 201 is electrically connected to the terminal 100 .

The terminal 100 is used to electrically connect the first connector and the second connector, and the wire 201 is one of the first connector and the second connector.

For example, the first connection member may be a lug of a male terminal, the terminal 100 may be a female terminal, and the second connection member may be the wire 201 .

According to the wire harness 300 of the embodiment of the present application, the connection is stable and reliable by adopting the above-mentioned electrical connector 200 .

A vehicle 400 according to an embodiment of the fourth aspect of the present application, as shown in FIG11 , includes a wiring harness 300 according to an embodiment of the third aspect of the present application.

The vehicle 400 according to the embodiment of the present application has good safety in use by adopting the above-mentioned wiring harness 300 .

Other structures and operations of the vehicle 400 according to the embodiment of the present application are known to ordinary technicians in the field and will not be described in detail here.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, In the description, unless otherwise specified, "plurality" means two or more.

In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

A terminal (100), comprising:

A main body (1), the main body (1) comprises a mating portion (11), the mating portion (11) is surrounded by a mating cavity (110), a circumferential cavity wall (S) along the mating portion (11) has a first end (110a) and a second end (110b), and the circumferential cavity wall (S) has a first mating area (S5), the first mating area (S5) is located between the first end (110a) and the second end (110b), the first end (110a) is limitedly mated with the first mating area (S5), and the second end (110b) is inserted into the mating cavity (110).
According to the terminal (100) according to claim 1, wherein the first matching area (S5) is provided with a first limiting portion (S51), the first end (110a) is provided with a second limiting portion (110c), and the first limiting portion (S51) and the second limiting portion (110c) are limitedly matched.
The terminal (100) according to claim 2, wherein one of the first limiting portion (S51) and the second limiting portion (110c) is a limiting protrusion, and the other is a limiting groove or a limiting hole.
According to any one of claims 1 to 3, the terminal (100) is characterized in that the circumferential cavity wall (S) further has a second mating area (S6), the second mating area (S6) is located between the first end (110a) and the second end (110b) and is spaced apart from the first mating area (S5), the second mating area (S6) is provided with a third limiting portion (S61), the second end (110b) is arranged on the inner side of the second mating area (S6), and the second end (110b) is provided with a fourth limiting portion (110d), and the fourth limiting portion (110d) is limitedly mated with the third limiting portion (S61).
According to the terminal (100) according to claim 4, there are multiple third limiting portions (S61), and the multiple third limiting portions (S61) are arranged at intervals along the axial direction of the mating cavity (110).
According to the terminal (100) according to any one of claims 1 to 5, the main body (1) also includes a guide portion (12), which is provided on the peripheral cavity wall (S) and is used to guide the installation direction of the mating portion (11) so that the mating portion (11) is suitable for mating with the shell along the axial direction of the mating cavity (110).
According to the terminal (100) of claim 6, wherein the peripheral cavity wall (S) is formed with a cutout (S0), and the guide portion (12) is a guide plate, one end of which is connected to a side edge of the cutout (S0).
According to the terminal (100) according to any one of claims 1 to 7, the mating portion (11) has an elastic arm (111) and a stop member (112), the elastic arm (111) is provided in the mating cavity (110) and extends axially along the mating cavity (110), the elastic arm (111) has a contact portion (111c) for electrically contacting a first connecting member, and the stop member (112) is configured to apply a force to the elastic arm (111) toward the first connecting member when the contact portion (111c) is in electrical contact with the first connecting member.
The terminal (100) according to claim 8, wherein the stop member (112) is cantilevered and includes a stop member A stop portion (1121) and a first connecting portion (1122), wherein the stop portion (1121) is arranged on one side of the elastic arm (111) in a first direction, and the first connecting portion (1122) is connected to a cavity wall of the mating cavity (110) in a second direction, and the first direction is perpendicular to the second direction.
The terminal (100) according to claim 9, wherein the first connecting portion (1122) extends along the first direction,

The first connecting portion (1122) is directly connected to the stop portion (1121); or,

The stop member (112) further comprises a second connecting portion, which extends along the axial direction of the mating cavity (110) and connects the stop portion (1121) and the first connecting portion (1122).
The terminal (100) according to any one of claims 1 to 10, wherein the terminal (100) is an integrally formed part.
The terminal (100) according to any one of claims 1 to 11, wherein the circumferential cavity wall (S) comprises a first cavity wall (S1), a second cavity wall (S2), a third cavity wall (S3) and a fourth cavity wall (S4), the first cavity wall (S1) and the second cavity wall (S2) are arranged opposite to each other along a first direction, the third cavity wall (S3) and the fourth cavity wall (S4) are respectively arranged on opposite sides of the second cavity wall (S2) in the second direction, the first cavity wall (S1) comprises a first top wall (S11) and a second top wall (S12), the first top wall (S11) is arranged on a side of the second top wall (S12) facing away from the second cavity wall (S2), the third cavity wall (S3) connects the first top wall (S11) and the second cavity wall (S2), the fourth cavity wall (S4) connects the second top wall (S12) and the second cavity wall (S2),

The end of the first top wall (S11) away from the third cavity wall (S3) is the first end (110a), the end of the second top wall (S12) away from the fourth cavity wall (S4) is the second end (110b), the first mating area (S5) is formed in the adjacent area of the second top wall (S12) and the fourth cavity wall (S4), the first direction is perpendicular to the second direction, and the first direction and the second direction are both perpendicular to the axial direction of the mating cavity (110).
The terminal (100) according to claim 12, wherein the first matching area (S5) is provided with a first limiting portion (S51),

The first limiting portion (S51) includes a first part and a second part, the first part is arranged on the second top wall (S12), and the second part is arranged on the fourth cavity wall (S4); or,

The first limiting portion (S51) is disposed on the second top wall (S12) and is close to the fourth cavity wall (S4); or,

The first limiting portion (S51) is arranged on the fourth cavity wall (S4) and is close to the second top wall (S12).
An electrical connector (200), comprising:

Housing (101);

A terminal (100), wherein the terminal (100) is a terminal (100) according to any one of claims 1 to 13, and The housing (101) is matched.
A wiring harness (300), comprising:

An electrical connector (200), wherein the electrical connector (200) is the electrical connector (200) according to claim 14;

An electric wire (201), wherein the electric wire (201) is electrically connected to the terminal (100).
A vehicle (400), comprising the wiring harness (300) according to claim 15.