EP4645607A1

EP4645607A1 - Contact, first connector, connector assembly, electronic device, and vehicle

Info

Publication number: EP4645607A1
Application number: EP25154071.2A
Authority: EP
Inventors: Gao Peng; Pei YANG
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2024-01-29
Filing date: 2025-01-27
Publication date: 2025-11-05
Also published as: CN119852747A; WO2025161445A1

Abstract

A contact, a first connector, a connector assembly, an electronic device, and a vehicle. The contact for a first connector includes a main body. The main body has a locking surface. The locking surface is configured not to be opposite to a shear position when the locking surface is locked with a housing of the first connector. According to the contact for a first connector according to the present disclosure, the contact has a simple structure. When the contact is configured for the first connector, the contact does not easily fall off from an interior of the housing, and the assembly stability between the contact and the housing is improved.

Description

FIELD

The present disclosure relates to the technical field of vehicles, and particularly, to a contact, a first connector, a connector assembly, an electronic device, and a vehicle.

BACKGROUND

Female connectors typically consist of contacts inserted into plastic housings, and the contacts are fixed to the plastic housings through lock bolts on the contacts. However, in a related art, after a contact and a plastic housing are assembled, and when the contact is pulled by an external force, the contact easily falls off from the plastic housing, which affects normal use of a connector.

SUMMARY

The present disclosure aims to resolve at least one of technical problems existing in a related art. Therefore, an objective of the present disclosure is to provide a contact for a first connector. The contact has a simple structure. When the contact is configured for the first connector, the contact does not easily fall off from an interior of a housing, and the assembly stability between the contact and the housing is improved.
A second objective of the present disclosure is to provide a first connector using the foregoing contact.
A third objective of the present disclosure is to provide a connector assembly using the foregoing first connector.
A fourth objective of the present disclosure is to provide an electronic device using the foregoing first connector or the foregoing connector assembly.
A fifth objective of the present disclosure is to provide a vehicle using the foregoing first connector, the foregoing connector assembly, or the electronic device.
The contact for a first connector according to an embodiment in a first aspect of the present disclosure includes: a main body. The main body has a locking surface. The locking surface is configured not to be opposite to a shear position when locked with a housing of the first connector.
According to the contact for a first connector in the present disclosure, the locking surface is configured not to be opposite to a shear position when locked with a housing of the first connector, an action force of the locking surface on an inner wall surface of the housing is reduced, the locking surface does not easily puncture the housing, the main body of the contact is prevented from falling off from the housing, the assembly stability between the contact and the housing is improved, and the stability of the first connector in use is improved. In addition, the service life of the first connector is prolonged.
According to some embodiments of the present disclosure, the shear position is located at one side of the locking surface that is away from a center of the main body.
According to some embodiments of the present disclosure, the housing has a stopping surface, the locking surface is in contact with the stopping surface when the locking surface is locked with the housing, and the locking surface is parallel to the stopping surface.
According to some embodiments of the present disclosure, the main body is provided with a locking portion, the locking portion has the locking surface, one end of the locking portion is connected to the main body, the other end of the locking portion extends obliquely away from a central axis of the main body, and the locking surface is located at the other end of the locking portion; an inclination angle of the locking portion is C, an included angle between the locking surface and a cross section of the locking portion is B, a length of the locking surface in a direction perpendicular to the central axis of the main body is H, a length of the locking surface in a direction of the central axis of the main body is W, and an action force of the other end of the locking portion on the housing is F, where C, B, H, W, and F respectively satisfy: B=arctan(W/H), F ∝ 1/Sin(B+C).
According to some embodiments of the present disclosure, B satisfies: 30°≤B≤60°.
According to some embodiments of the present disclosure, C satisfies: 12°≤ C≤30°.
According to some embodiments of the present disclosure, the main body is provided with a locking portion, the locking portion has the locking surface, a length of the locking surface in a direction perpendicular to the central axis of the main body is H, a length of the locking surface in a direction of the central axis of the main body is W, and a thickness of the locking portion is T, where H, W, and T further satisfy: 1/3T≤H≤1/2T, and 0.05 mm≤W≤0.08 mm.
According to some embodiments of the present disclosure, the main body is provided with a locking portion, the locking portion has the locking surface, and the locking surface and a side surface of the locking portion that is away from the central axis of the main body are smoothly transitioned through a connecting surface.
According to some embodiments of the present disclosure, a thickness of the locking portion is T, and a length of the connecting surface in a direction of the central axis of the main body is S, where S and T satisfy: S≥1/2T.
According to some embodiments of the present disclosure, the main body is provided with a locking portion. The locking portion has the locking surface. A peripheral surface of the main body is provided with an opening. Side walls of the opening include a first side wall and a second side wall opposite to each other. One end of the locking portion is connected to the first side wall. The second side wall is provided with a limiting protrusion. The limiting protrusion is located at one side of the peripheral surface of the main body that is adjacent to the center of the main body, and the other end of the locking portion is applicable to being in contact with the limiting protrusion.
According to some embodiments of the present disclosure, a thickness of the locking portion is T, and a distance difference between a side surface of the limiting protrusion that is away from the central axis of the main body and the peripheral surface of the main body is G, where G satisfies: 1/3T≤G≤1/2T.
A first connector according to an embodiment in a second aspect of the present disclosure includes the contact for a first connector according to an embodiment in the foregoing first aspect of the present disclosure.
According to some embodiments of the present disclosure, the first connector further includes: a housing. A fitting channel is defined in the housing. At least part of the main body of the first connector extends from one end of the housing and fits in the fitting channel. An inner wall of the fitting channel is provided with an accommodating groove. An inner wall surface of one end of the accommodating groove that is adjacent to the housing has a stopping surface. The locking surface of the locking portion of the first connector is arranged to be in contact with the stopping surface to limit the main body to move toward the end of the housing.
A connector assembly according to an embodiment in a third aspect of the present disclosure includes the first connector according to an embodiment in the foregoing second aspect of the present disclosure.
According to some embodiments of the present disclosure, the connector assembly further includes: a second connector, the second connector extending from the other end of a housing of the first connector and fitting in a main body of a contact of the first connector.
An electronic device according to an embodiment in a fourth aspect of the present disclosure includes the first connector according to an embodiment in the foregoing second aspect of the present disclosure, or includes the connector assembly according to embodiment in the foregoing third aspect of the present disclosure.
A vehicle according to an embodiment in a fifth aspect of the present disclosure includes the first connector according to an embodiment in the foregoing second aspect of the present disclosure, or includes the connector assembly according to an embodiment in the foregoing third aspect of the present disclosure, or includes the electronic device according to an embodiment in the foregoing fourth aspect of the present disclosure.
Additional aspects and advantages of the present disclosure will be partially given in the description below, parts of which will become apparent from the description below, or will be understood by the practice of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The foregoing and/or additional aspects and advantages of the present disclosure will become apparent and readily understood from the description of the embodiments in combination with accompanying drawings.

FIG. 1 is a cross-sectional view of a first connector according to an embodiment of the present disclosure;
FIG. 2 is a partial cross-sectional view of a first connector according to an embodiment of the present disclosure;
FIG. 3 is an enlarged view of portion D circled in FIG. 2;
FIG. 4 is a schematic diagram of a locking portion of a contact according to an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of fitting of a locking portion of a contact and a stamping die according to an embodiment of the present disclosure;
FIG. 6 is a side view of a main body of a contact according to an embodiment of the present disclosure; and
FIG. 7 is a cross-sectional view of a connector assembly according to an embodiment of the present disclosure.

In the drawings:

100, contact;
1, main body; 11, locking portion; 111, locking surface; 112, connecting surface;
12, opening; 121, first side wall; 122, second side wall; 1221, limiting protrusion;
13, upper cutting edge; 14, lower cutting edge; 15, elastic contact sheet;
16, crimping part; 161, conductor wire clamp; 162, insulating wire clamp;
17, first side edge; 18, second side edge; 19, third side edge;
200, first connector;
201, housing; 2011, stopping surface; 2012, fitting channel; 2013: accommodating groove;
300: connector assembly; and 301, second connector.

DETAILED DESCRIPTION

Embodiments of the present disclosure are described in detail below, and the embodiments described with reference to accompanying drawings are exemplary. A contact 100 for a first connector 200 according to an embodiment in a first aspect of the present disclosure is described below with reference to FIG. 1 to FIG. 6.
As shown in FIG. 1 and FIG. 4, the contact 100 for the first connector 200 according to an embodiment in a first aspect of the present disclosure includes a main body 1.
Specifically, the main body 1 has a locking surface 111. The locking surface 111 is configured not to be opposite to a shear position (for example, a dotted position indicated by an arrow A in FIG. 1) when locked with a housing 201 of the first connector 200. For example, in examples in FIG. 1 and FIG. 4, the locking surface 111 is located at a right end of an upper part of the main body 1. When the contact 100 fits on the housing 201, the locking surface 111 fits an inner wall surface of the housing 201 to lock the contact 100 with the housing 201. When the contact 100 and the housing 201 are assembled, the main body 1 of the contact 100 extends into the housing 201. After the locking surface 111 and the housing 201 are locked, there is a need to check whether the locking surface 111 and the housing 201 are locked in place. When a rightward (that is, opposite to an extending direction of the main body 1) pulling force is applied to the main body 1, a pair of action force and reaction force are formed between the locking surface 111 and the inner wall surface of the housing 201. The locking surface 111 is configured not to be opposite to the shear position when locked with the housing 201 of the first connector 200, that is, the locking surface 111 is not opposite to the shear position left and right, so that an action force (the "action force" refers to a shear force of the locking surface 111 on the inner wall surface of the housing 201) of the locking surface 1 11 on the inner wall surface of the housing 201 is reduced, the locking surface 111 does not easily puncture the housing 201, the main body 1 of the contact 100 is effectively prevented from falling off from the housing 201 after the housing 201 is punctured, the assembly stability between the contact 100 and the housing 201 is improved, and the stability of the first connector 200 in use is improved. Moreover, long-time normal use of the housing 201 of the first connector 200 is facilitated, thereby prolonging the service life of the first connector 200.
For example, in an example of the present disclosure, as shown in FIG. 1, when the locking surface 111 applies the action force to the inner wall surface of the housing 201, the foregoing shear position is a position where the housing 201 breaks easily, that is, the dotted position indicated by arrow A in FIG. 1. The foregoing dotted position is located above a contact surface between the locking surface 111 and the inner wall surface of the housing 201, so as to reduce the action force of the locking surface 111 on the inner wall surface of the housing 201. When the position where the housing 201 breaks easily is opposite to the locking surface 111 along a left-right direction, the position where the housing 201 breaks more easily under the action force of the locking surface 111, that is, the main body 1 falls off from an interior of the housing 201 easily.
According to the contact 100 for the first connector 200 in the present disclosure, the locking surface 111 is configured not to be opposite to the shear position when locked with the housing 201 of the first connector 200, the action force of the locking surface 111 on the inner wall surface of the housing 201 is reduced, the locking surface 111 does not easily puncture the housing 201, the main body 1 of the contact 100 is prevented from falling off from the housing 201, the assembly stability between the contact 100 and the housing 201 is improved, and the stability of the first connector 200 in use is improved. In addition, the service life of the first connector 200 is prolonged.
According to some embodiments of the present disclosure, referring to FIG. 1 and FIG. 4, the shear position is located at one side of the locking surface 111 that is away from a center of the main body 1. For example, in the examples in FIG. 1 and FIG. 4, the shear position is located above the locking surface 111. Through such an arrangement, during applying a force to the housing 201 by the locking surface 111, the shear position of the housing 201 does not break easily, the housing 201 is not damaged easily, and the main body 1 does not fall off from the housing 201 easily, so that the service life of the housing 201 is prolonged, and the stability of the first connector 200 in use is further improved.
According to some embodiments of the present disclosure, referring to FIG. 1, the housing 201 has a stopping surface 2011. The locking surface 111 is in contact with the stopping surface 2011 when the locking surface 111 is locked with the housing 201, and the locking surface 111 is parallel to the stopping surface 2011. For example, in an example in FIG. 1, the locking surface 111 is opposite to the stopping surface 2011 along an axial direction (that is, the left-right direction in FIG. 1) of the main body. When the main body 1 is subjected to a rightward pulling force, the main body 1 moves rightward until the locking surface 111 is in contact with the stopping surface 2011 (as shown in FIG. 2), so that the stopping surface 2011 limits the locking surface 111, the main body 1 is prevented from continuing moving rightward, and the main body 1 is prevented from falling off from the housing 201. Moreover, the locking surface 111 is configured to be parallel to the stopping surface 2011, so that the action force of the locking surface 111 on the stopping surface 2011 can be effectively reduced, thereby reducing the shear force of the locking surface 111 on the housing 201 and preventing the locking surface 111 from falling off from the housing 201 after puncturing a lower part of the inner wall surface of the housing 201. In addition, the locking surface 111 is effectively ensured not to be opposite to the shear position when locked with the housing 201, thereby further preventing the main body 1 from falling off from the housing 201.
According to some embodiments of the present disclosure, referring to FIG. 4, the main body 1 is provided with a locking portion 11. The locking portion 11 has the locking surface 111. One end of the locking portion 11 is connected to the main body 1, the other end of the locking portion 11 extends obliquely away from a central axis of the main body 1, and the locking surface 111 is located at the other end of the locking portion 11. For example, in an example in FIG. 4, a left end of the locking portion 11 is connected to the main body 1, a right end of the locking portion 11 extends upward obliquely, and the locking surface 111 is located at a right end face of the locking portion 11. Through such an arrangement, the locking portion 11 may be tilted upward, so as to facilitate locking fitting between the locking portion 11 and the housing 201, thereby improving the use performance of the main body 1. In addition, the locking portion 11 has a simple structure and is convenient to produce, thereby reducing the production cost of the locking portion 11. It is to be noted that, a length of the locking surface 111 in a direction perpendicular to the central axis of the main body 1 (that is, an up-down direction in FIG. 4) and a length of the locking surface 111 in a direction of the central axis of the main body 1 may be determined according to a gap between an upper cutting edge 13 and a lower cutting edge 14 of a stamping die and sharpness of the cutting edges (as shown in FIG. 5), thereby facilitating controlling the formation of the locking surface 111.
In combination with FIG. 2 and FIG. 3, an inclination angle of the locking portion 11 is C, an included angle between the locking surface 111 and a cross section of the locking portion 11 (that is, an included angle between the locking surface 111 and a plane where a thickness direction of the locking portion 11 is located) is B, a length of the locking surface 111 in a direction perpendicular to the central axis of the main body 1 is H, a length of the locking surface 111 in a direction of the central axis of the main body 1 is W, and an action force of the foregoing other end of the locking portion 11 on the housing 201 is F ("the action force F" refers to a shear force of an end portion of the locking portion 11 on the stopping surface 2011 of the housing 201), where C, B, H, W, and F respectively satisfy: B=arctan(W/H), F ∝ 1/Sin(B+C).
For example, the included angle B between the locking surface 111 and the cross section of the locking portion 11 is directly proportional to a ratio of the length W of the locking surface 111 in the direction of the central axis of the main body 1 to the length H of the locking surface 111 in the direction perpendicular to the central axis of the main body 1 (that is, W/H), that is, the ratio of the length W of the locking surface 111 in the direction of the central axis of the main body 1 to the length H of the locking surface 111 in the direction perpendicular to the central axis of the main body 1 (that is, W/H) is small, the corresponding included angle B between the locking surface 111 and the cross section of the locking portion 11 is small, thereby facilitating adjusting the included angle B between the locking surface 111 and the cross section of the locking portion 11 through the length H of the locking surface 111 in the direction perpendicular to the central axis of the main body 1 and the length W of the locking surface 111 in the direction of the central axis of the main body 1.
For example, the action force F of the foregoing other end of the locking portion 11 on the housing 201 is inversely proportional to Sin(B+C). The action force F of the foregoing other end of the locking portion 11 on the housing 201 is inversely proportional to the included angle B between the locking surface 111 and the cross section of the locking portion 11 and the inclination angle C of the locking portion 11, that is, when the inclination angle C of the locking portion 11 remains unchanged, the larger the included angle B between the locking surface 111 and the cross section of the locking portion 11, the lower the action force F of the foregoing other end of the locking portion 11 on the housing 201. When the included angle B between the locking surface 111 and the cross section of the locking portion 11 remains unchanged, the larger the inclination angle C of the locking portion 11, the lower the action force F of the foregoing other end of the locking portion 11 on the housing 201, so as to facilitate changing the included angle B between the locking surface 111 and the cross section of the locking portion 11 or the inclination angle C of the locking portion 11 to reduce the action force F of the foregoing other end of the locking portion 11 on the housing 201, thereby avoiding puncturing the housing 201 due to a great action force F, and further preventing the main body 1 of the contact 100 from falling off from the housing 201.

Through practical verification, practice accords with a theory, results are as shown in the following table below. From data in the table, it can be obtained that: a holding force of the locking portion 11 of a new structure provided with the locking surface 111 on the housing 201 is large, that is, the structure in this solution can withstand a greater pulling force and does not fall off from an interior of the housing easily. In addition, a limiting protrusion 1221 described below is formed, so that the locking portion 11 may be retained at a higher height after the main body 1 in this solution is inserted into the housing 201, which can effectively solve a problem that the locking portion 11 is pressed down without rebounding during inserting the main body 1 into the housing 201. It is to be noted that, "a holding force of the locking portion on the housing" refers to a value of an external force that the main body 1 can withstand when pulled by the external force. An old structure refers to a structure that does not have the locking surface 111 according to the present disclosure.

Quantity of samples	Holding force of locking portion to housing (N)		Height of a free end of a locking portion after the locking portion is inserted into a housing (mm)
Quantity of samples	Old structure	New structure	Old structure	New structure
1	25.44	42.16	2.36	2.41
2	28.75	48.95	2.35	2.39
3	28.43	47.34	2.35	2.43
4	26.32	46.15	2.36	2.42
5	27.15	41.76	2.35	2.39
6	29.17	49.52	2.36	2.41
7	24.87	45.37	2.34	2.45
8	25.64	50.55	2.36	2.44
Average value	26.97	46.48	2.354	2.42

Optionally, referring to FIG. 3, the included angle between the locking surface 111 and the cross section of the locking portion 11 is B, where B satisfies: 30°≤B≤60°. For example, when the included angle B between the locking surface 111 and the cross section of the locking portion 11 is less than 30°, the included angle B between the locking surface 111 and the cross section of the locking portion 11 is small, so that the action force F of the foregoing other end of the locking portion 11 on the housing 201 is great, the locking portion 11 easily punctures the housing 201, the main body 1 of the contact 100 easily falls off from the housing 201, and the stability of the first connector 200 in use is reduced. When the included angle B between the locking surface 111 and the cross section of the locking portion 11 is greater than 60°, the included angle B between the locking surface 111 and the cross section of the locking portion 11 is large, and the locking surface 111 tends to be flush with one side of the locking portion 11 that is close to a center of the main body 1 (that is, an axial direction of the main body 1), so that the action force F of the locking portion 11 on the stopping surface 2011 is increased, and an inner wall surface of the housing 201 is easily damaged when the main body 1 is pulled to move rightward. Thus, the included angle B between the locking surface 111 and the cross section of the locking portion 11 is set to satisfy 30°≤B≤60°, the included angle B between the locking surface 111 and the cross section of the locking portion 11 is set properly, and the action force F of the foregoing other end of the locking portion 11 on the housing 201 is low, so that the locking portion 11 does not puncture the housing 201 easily, and the main body 1 of the contact 100 is prevented from falling off from the housing 201, thereby facilitating improving the use performance of the first connector 200. For example, C further satisfies: 12°≤C≤30°, so as to further reduce an interaction force between the locking surface 111 and the stopping surface 2011, thereby further improving the fitting stability of the contact 100 and the housing 201.
According to some optional embodiments of the present disclosure, the locking portion 11 is molded by blanking a plate. The plate is stretched in advance and elongates plastically, and then the locking portion 11 forms a straight section by shaping. Through such an arrangement, the locking portion 11 is convenient to produce, thereby reducing the production efficiency of the locking portion 11.
According to some embodiments of the present disclosure, referring to FIG. 2 and FIG. 3, the main body 1 is provided with a locking portion 11, the locking portion 11 has a locking surface 111, a length of the locking surface 111 in a direction perpendicular to the central axis of the main body 1 is H, a length of the locking surface 111 in a direction of the central axis of the main body 1 is W, and a thickness of the locking portion 11 is T, where H, W, and T further satisfy: 1/3T≤H≤1/2T, and 0.05 mm≤W≤0.08 mm. For example, in examples in FIG. 2 and FIG. 3, the length of the locking surface 111 in an up-down direction is H, and the length of the locking surface 111 in a left-right direction is W.
For example, when the length H of the locking surface 111 in the direction perpendicular to the central axis of the main body 1 is less than 1/3T, the length H of the locking surface 111 in the direction perpendicular to the central axis of the main body 1 is small, so that the area of the locking surface 111 is reduced, the contact area between the locking surface 111 and the stopping surface 2011 is reduced, and the machining difficulty of the locking surface 111 is increased. For example, when the length H of the locking surface 111 in the direction perpendicular to the central axis of the main body 1 is greater than 1/2T, the length H of the locking surface 111 in the direction perpendicular to the central axis of the main body 1 is large, so that the included angle B between the locking surface 111 and the cross section of the locking portion 11 is small, and the action force F of the foregoing other end of the locking portion 11 on the housing 201 is great, the foregoing other end of the locking portion 11 punctures the housing 201 easily, and the main body 1 falls off from the housing 201 easily. When the length W of the locking surface 111 in the direction of the central axis of the main body 1 less than 0.05 mm, the length W of the locking surface 111 in the direction of the central axis of the main body 1 is small, so that the included angle B between the locking surface 111 and the cross section of the locking portion 11 is small, the action force F of the foregoing other end of the locking portion 11 on the housing 201 is great, the foregoing other end of the locking portion 11 punctures the housing 201 easily, and the main body 1 falls off from the housing 201 easily. When the length W of the locking surface 111 in the direction of the central axis of the main body 1 greater than 0.08 mm, the machining difficulty of the locking surface 111 is increased.
Thus, when the length H of the locking surface 111 in the direction perpendicular to the central axis of the main body 1 and a thickness T of the locking portion 11 are set to satisfy 1/3T≤H≤1/2T, and set the length W of the locking surface 111 in the direction of the central axis of the main body 1 to satisfy 0.05 mm≤W≤0.08 mm, a size of the locking surface 111 is set properly, and the action force F of the foregoing other end of the locking portion 11 on the housing 201 is reduced, so that the foregoing other end of the locking portion 11 does not puncture the housing 201 easily, the main body 1 is prevented from falling off from the housing 201, and the stability of the first connector 200 in use is improved. In addition, production and machining of the locking surface 111 are facilitated, and the machining efficiency of the contact 100 is improved.
According to some embodiments of the present disclosure, referring to FIG. 2 and FIG. 3, the main body 1 is provided with a locking portion 11, the locking portion 11 has a locking surface 111, and the locking surface 111 and a side surface of the locking portion 11 that is away from a central axis of the main body 1 are smoothly transitioned through a connecting surface 112. For example, in examples in FIG. 2 and FIG. 3, a peripheral surface of the connecting surface 112 is roughly arc-shaped. During inserting the contact 100 into the housing 201, the locking portion 11 is in a pressed state. When the contact 100 moves until a free end of the locking portion 11 is separated from a side surface of the housing 201 that faces the main body 1, a right end of the locking portion 11 may be tilted upward, and an arrangement of the connecting surface 112 is beneficial for the right end of the locking portion 11 to slide and tilt upward, thereby improving the assembly rate of the locking portion 11 and the housing 201, and improving the assembly efficiency of the first connector 200. In addition, during assembling the contact 100 and the housing 201, the connecting surface 112 can be prevented from scratching a worker, thereby improving the use safety of the contact 100.
According to some embodiments of the present disclosure, referring to FIG. 4, a thickness of the locking portion 11 is T, and a length of the connecting surface 112 in a direction of the central axis of the main body 1 is S, where S and T satisfy: S≥1/2T.
For example, in an example in FIG. 4, the length of the connecting surface 112 in a left-right direction is S. When the length S of the connecting surface 112 in the direction of the central axis of the main body 1 is less than half of the thickness T of the locking portion 11, the length S of the connecting surface 112 in the direction of the central axis of the main body 1 is small, so that the smoothness that the right end of the locking portion 11 slides and tilts upward is reduced during assembling the housing 201 and the contact 100, thereby prolonging the assembly time of the housing 201 and the contact 100. In addition, a connection between the connecting surface 112 and one side of the locking portion 11 that is away from the center of the main body 1 is sharp, or a connection between the connecting surface 112 and the locking surface 111 is sharp, so that the right end of the locking portion 11 scratches a worker easily during assembling the contact 100 and the housing 201, thereby reducing the use safety of the contact 100. Thus, when the thickness T of the locking portion 11 and the length S of the connecting surface 112 in the direction of the central axis of the main body 1 are set to satisfy S≥1/2T, the length of the connecting surface 112 in the direction of the central axis of the main body 1 is increased, thereby improving the smoothness that the smoothness that the right end of the locking portion 11 slides and tilts upward is increased during assembling the housing 201 and the contact 100, thereby improving the assembly efficiency of the housing 201 and the contact 100. In addition, a connection between the connecting surface 112 and one side of the locking portion 11 that is away from the center of the main body 1 is smooth, and a connection between the connecting surface 112 and the locking surface 111 is smooth, so that the right end of the locking portion 11 is prevented from scratching a worker during assembling the contact 100 and the housing 201, thereby improving the use safety of the contact 100.
According to some embodiments of the present disclosure, referring to FIG. 1, the main body 1 is provided with a locking portion 11. The locking portion 11 has the locking surface 111. A peripheral surface of the main body 1 is provided with an opening 12. Side walls of the opening 12 include a first side wall 121 and a second side wall 122 opposite to each other. One end of the locking portion 11 is connected to the first side wall 121. The second side wall 122 is provided with a limiting protrusion 1221. The limiting protrusion 1221 is located at one side of the peripheral surface of the main body 1 that is adjacent to the center of the main body 1. The foregoing other end of the locking portion 11 is applicable to being in contact with the limiting protrusion 1221.
For example, in an example in FIG. 1, the first side wall 121 is a left side wall of the opening 12, and the second side wall 122 is a right side wall of the opening 12. A left end of the locking portion 11 is connected to the first side wall 121. A right end of the locking portion 11 is located above the limiting protrusion 1221. During a part of the main body 1 extending into the housing 201, the locking portion 11 is pressed downward by a side wall of the housing 201 that faces the main body 1, and the right end of the pressed locking portion 11 is in contact with the limiting protrusion 1221. Thus, during mounting the contact 100 and the housing 201, the limiting protrusion 1221 limits the right end of the locking portion 11, which limits the locking portion 11 to move downward, and avoids that the right end of the locking portion 11 cannot move upward to recover to an original position due to excessive yield of the right end of the locking portion 11, thereby effectively improving a fitting effect between the locking portion 11 and the housing 201.
According to some embodiments of the present disclosure, referring to FIG. 4, the thickness of the locking portion 11 is T, and a distance difference between a side surface of the limiting protrusion 1221 that is away from the central axis of the main body 1 and the peripheral surface of the main body 1 is G, where G satisfies: 1/3T≤G≤1/2T. For example, when the distance difference G between the side surface of the limiting protrusion 1221 that is away from the central axis of the main body 1 and the peripheral surface of the main body 1 is less than 1/3 of the thickness T of the locking portion 11, the distance difference between the side surface of the limiting protrusion 1221 that is away from the central axis of the main body 1 and the peripheral surface of the main body 1 is small, so that a distance that the right end of the locking portion 11 moves downward is shortened, and the right end of the locking portion 11 is easily in contact with the housing 201 when the right end of the locking portion 11 is in contact with the limiting protrusion 1221, thereby hindering the contact 100 from being assembled into the housing 201, and improving the assembly difficulty of the contact 100 and the housing 201. When the distance difference G between the side surface of the limiting protrusion 1221 that is away from the central axis of the main body 1 and the peripheral surface of the main body 1 is greater than 1/2 of the thickness T of the locking portion 11, the distance difference between the side surface of the limiting protrusion 1221 that is away from the central axis of the main body 1 and the peripheral surface of the main body 1 is large, so that a distance that the right end of the locking portion 11 moves downward is increased, the deformation degree of the locking portion 11 is increased, the right end of the locking portion 11 does not easily recover to the original position, and the height of the locking portion 11 is reduced.
Thus, when the thickness T of the locking portion 11 and the distance difference G between the side surface of the limiting protrusion 1221 that is away from the central axis of the main body 1 and the peripheral surface of the main body 1 are set to satisfy 1/3T≤G≤1/2T, the limiting protrusion 1221 is configured properly, so that the assembly difficulty between the contact 100 and the housing 201 is reduced when the right end of the locking portion 11 is in contact with the limiting protrusion 1221, and the assembly efficiency of the first connector 200 is improved. In addition, the distance that the right end of the locking portion 11 moves downward is shortened, so that the deformation degree of the locking portion 11 is reduced, the right end of the locking portion 11 easily recovers to the original position, and the height of the locking portion 11 in a locked state increased.

A traditional contact structure does not have the limiting protrusion 1221 according to this solution and the free end of the locking portion does not have the locking surface 111 with an inclination angle. This contact structure is obtained by blanking a plate first to cut corresponding positions of the locking portion and the housing, then the locking portion is stamped and bent to reach a corresponding height, and then the locking portion is hooked to an inner wall surface of the housing. Comparing the foregoing technical solution with the solution according to the present disclosure, results are shown in the following table (referring to FIG. 1):

State	Height of a fitting channel (M)	Before inserting into a housing	After inserting into a housing
State	Height of a fitting channel (M)	Height of a free end of a locking portion of a housing (L)
With a limiting protrusion	2.00	2.65	2.39	Average values of 10 groups are taken above
	2.07		2.46
	2.15		2.56
Without a limiting protrusion	2.00	2.65	2.32
	2.07		2.43
	2.15		2.56

From data in the table, it can be obtained that: The main body 1 of the contact 100 is provided with the limiting protrusion 1221, and the yield of the locking portion 11 can be effectively reduced, so that the free end of the locking portion 11 can rebound after being pressed down after the contact 100 is inserted into the housing 201, thereby facilitating hooking the locking surface 111 of the locking portion 11 with the stopping surface 2011 of the housing 201.
Optionally, referring to FIG. 1, the main body 1 is provided with an elastic contact sheet 15. One end of the elastic contact sheet 15 is connected to the main body 1, and the other end of the elastic contact sheet 15 obliquely extends to a direction (a left-right direction shown in FIG. 1) of the central axis of the main body 1. Through such an arrangement, during assembling a first connector 200 and a second connector 301, insertion of the second connector 301 into the first connector 200 is facilitated while ensuring the contact between the second connector 301 and the elastic contact sheet 15, and meanwhile the second connector 301 may be removed from the first connector 200 smoothly, so as to facilitate assembly and disassembly of the first connector 200 and the second connector 301.
Optionally, referring to FIG. 1, the main body 1 is provided with a crimping part 16. The crimping part 16 includes a conductor wire clamp 161 and an insulating wire clamp 162 connected to each other. The conductor wire clamp 161 is connected between the center of the main body 1 and the insulating wire clamp 162. The conductor wire clamp 161 and the insulating wire clamp 162 are from left to right in sequence. When the contact 100 is configured to the first connector 200, two free ends of the insulating wire clamp 162 get close to each other to clamp a conducting wire. Insulating housings of multiple conducting wires are in contact with an inner wall surface of the conductor wire clamp 161, and the multiple conducting wires are wrapped by the insulating wire clamp 162. Meanwhile, the conductors of the multiple conducting wires are in contact with the conductor wire clamp 161, two free ends of the conductor wire clamp 161 get close to each other to enable a peripheral surface of the conductor wire clamp 161 to be roughly ring-shaped, and the multiple conducting wires are wrapped in the conductor wire clamp 161. Thus, connections between the crimping part 16 and the conducting wires are facilitated, thereby facilitating use of the contact 100. In addition, normal conductivity of the conducting wires is facilitated, the connections between the crimping part 16 and the conducting wires are tight, and the insulating wire clamp 162 is arranged, so that the use safety of the contact 100 is improved.
Further, referring to FIG. 6, the main body 1 molded into a square by a sheet-like structure. The main body 1 includes a first side edge 17, a second side edge 18, and two third side edges 19. The first side edge 17 is a top side edge of the main body 1. An opening 12 is formed in the first side edge 17 and penetrates through an upper side surface and a lower side surface of the first side edge 17 along an up-down direction. The second side edge 18 is a bottom side edge of the main body 1. The third side edges 19 are located between the first side edge 17 and the second side edge 18. The main body 1 is roughly cylindrical. Thus, the main body 1 has a simple structure, and is convenient to form, thereby improving the production efficiency of the main body 1.
A first connector 200 according to an embodiment in a second aspect of the present disclosure, referring to FIG. 1, includes the contact 100 for the first connector 200 according to the embodiments in the foregoing first aspect of the present disclosure.
According to the first connector 200 in the present disclosure, the foregoing contact 100 is used, so that the stability of the first connector 200 in use is improved, and the service life of the first connector 200 is prolonged.
According to some embodiments of the present disclosure, referring to FIG. 1, the first connector 200 further includes a housing 201.
Specifically, a fitting channel 2012 is defined in the housing 201. At least part of the main body 1 of the first connector 200 extends from one end of the housing 201 and fits in the fitting channel 2012. An inner wall of the fitting channel 2012 is provided with an accommodating groove 2013. An inner wall surface of one end of the accommodating groove 2013 that is adjacent to the housing 201 has a stopping surface 2011. A locking surface 111 of a locking portion 11 of the first connector 200 is applicable to being in contact with the stopping surface 2011 to limit the main body 1 to move toward the end of the housing 201.
For example, in an example in FIG. 1, the fitting channel 2012 penetrates through the housing 201 along an axial direction of the housing 201. A left side part of the main body 1 extends from a right end of the housing 201 and fits in the fitting channel 2012. An upper side wall of the fitting channel 2012 is concave upward to form the accommodating groove 2013. The accommodating groove 2013 is opposite to the locking portion 11. The stopping surface 2011 is located at a right wall surface of the accommodating groove 2013. The locking surface 111 is applicable to being in contact with the stopping surface 2011 to limit the main body 1 to move rightward. Through such an arrangement, the assembly of the housing 201 and the contact 100 is facilitated, thereby improving the assembly efficiency of the first connector 200. In addition, the main body 1 can be prevented from falling off from the housing 201, so that the assembly stability of the contact 100 and the housing 201 is improved, and the stability of the first connector 200 in use is improved. In addition, the housing 201 has a simple structure, and the production efficiency of the housing 201 is reduced, thereby reducing the production cost of the housing 201.
A connector assembly 300 according to an embodiment in a third aspect of the present disclosure, referring to FIG. 7, includes the first connector 200 according to the embodiments in the foregoing second aspect of the present disclosure.
The connector assembly 300 according to the present disclosure, the foregoing first connector 200 is used, thereby improving the use performance of the connector assembly 300, and prolonging the service life of the connector assembly 300.
According to some embodiments of the present disclosure, referring to FIG. 7, the connector assembly 300 further includes a second connector 301. The second connector 301 extends from the other end of a housing 201 of the first connector 200 and fits in a main body 1 of a contact 100 of the first connector 200. For example, in an example in FIG. 7, the second connector 301 extends from a left end of the housing 201 and fits in the main body 1 of the contact 100, and the second connector 301 is in contact with an elastic contact sheet 15 on the main body 1, so that a conductive circuit is formed between the first connector 200 and the second connector 301. Thus, the stability of an electrical connection between the first connector 200 and the second connector 301 is improved, thereby improving the stability of the connector assembly 300 in use.
An electronic device (not shown in the figures) according to an embodiment in a fourth aspect of the present disclosure includes the first connector 200 according to an embodiment in the foregoing second aspect of the present disclosure, or includes the connector assembly 300 according to embodiment in the foregoing third aspect of the present disclosure.
According the electronic device in the present disclosure, the foregoing first connector 200 or the foregoing connector assembly 300 is used, thereby improving the use performance of the electronic device.
A vehicle (not shown in the figures) according to an embodiment in a fifth aspect of the present disclosure includes the first connector 200 according to an embodiment in the foregoing second aspect of the present disclosure, or includes the connector assembly 300 according to an embodiment in the foregoing third aspect of the present disclosure, or includes the electronic device according to an embodiment in the foregoing fourth aspect of the present disclosure.
According to the vehicle in the present disclosure, the foregoing first connector 200, or the foregoing connector assembly 300, or the foregoing electronic device is used, thereby improving the use performance of the vehicle.
Other configurations and operations of the contact 100, the first connector 200, the connector assembly 300, the electronic device, and the vehicle according to the embodiments of the present disclosure are known to those of ordinary skill in the art and will not be described in detail herein.
In the description of the present disclosure, it is to be understood that directions or location relationships indicated by terms "center", "transverse", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "circumferential", and the like are directions or location relationships shown based on the accompanying drawings, are merely intended to facilitate describing the present disclosure and simplifying the description, rather than indicating or implying that an apparatus or an element has to have a particular direction or has to be constructed and operated in a particular direction, and therefore, cannot be understood as a limitation to the present disclosure.
In the description of this specification, descriptions with reference to terms such as "an embodiment", "some embodiments", "example", "specific example", or "some examples" means that specific features, structures, materials, or characteristics that are described with reference to the embodiment or the example are included in at least one embodiment or example of the present disclosure. In this specification, schematic descriptions of the foregoing terms are not necessarily directed at the same embodiment or example.
Although the embodiments of the present disclosure have been shown and described, those of ordinary skill in the art may understand that: various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the present disclosure, and the scope of the present disclosure is as defined by the appended claims and their equivalents.

Claims

A contact for a first connector, comprising:
a main body, the main body having a locking surface, the locking surface being configured not to be opposite to a shear position when the locking surface is locked with a housing of the first connector.
The contact for the first connector according to claim 1, wherein the shear position is located at one side of the locking surface that is away from a center of the main body.
The contact for the first connector according to claim 1, wherein the housing has a stopping surface, the locking surface is in contact with the stopping surface when the locking surface is locked with the housing, and the locking surface is parallel to the stopping surface.
The contact for the first connector according to claim 1, wherein the main body is provided with a locking portion, the locking portion has the locking surface, one end of the locking portion is connected to the main body, the other end of the locking portion extends obliquely away from a central axis of the main body, and the locking surface is located at the other end of the locking portion;
an inclination angle of the locking portion is C, an included angle between the locking surface and a cross section of the locking portion is B, a length of the locking surface in a direction perpendicular to the central axis of the main body is H, a length of the locking surface in a direction of the central axis of the main body is W, and an action force of the other end of the locking portion on the housing is F, wherein C, B, H, W, and F respectively satisfy: B=arctan(W/H), F ∝ 1/Sin(B+C).
The contact for the first connector according to claim 4, wherein B satisfies: 30°≤B≤60°.
The contact for the first connector according to claim 4, wherein C satisfies: 12°≤ C≤30°.
The contact for the first connector according to claim 1, wherein the main body is provided with a locking portion, the locking portion has the locking surface, a length of the locking surface in a direction perpendicular to the central axis of the main body is H, a length of the locking surface in a direction of the central axis of the main body is W, and a thickness of the locking portion is T, wherein H, W, and T further satisfy: 1/3T≤H≤1/2T, and 0.05 mm≤W≤0.08 mm.
The contact for the first connector according to claim 1, wherein the main body is provided with a locking portion, the locking portion has the locking surface, and the locking surface and a side surface of the locking portion that is away from the central axis of the main body are smoothly transitioned through a connecting surface.
The contact for the first connector according to claim 8, wherein a thickness of the locking portion is T, and a length of the connecting surface in a direction of the central axis of the main body is S, wherein S and T satisfy: S≥1/2T.
The contact for the first connector according to any one of claims 1 to 9, wherein the main body is provided with a locking portion, the locking portion has the locking surface, a peripheral surface of the main body is provided with an opening, side walls of the opening comprise a first side wall and a second side wall opposite to each other, one end of the locking portion is connected to the first side wall, the second side wall is provided with a limiting protrusion, the limiting protrusion is located at one side of the peripheral surface of the main body that is adjacent to the center of the main body, and the other end of the locking portion is applicable to being in contact with the limiting protrusion.
The contact for the first connector according to claim 10, wherein a thickness of the locking portion is T, and a distance difference between a side surface of the limiting protrusion that is away from the central axis of the main body and the peripheral surface of the main body is G, wherein G satisfies: 1/3T≤G≤1/2T.
A first connector, comprising the contact for the first connector according to any one of claims 1 to 11, preferably further comprising:
a housing, a fitting channel being defined in the housing, at least part of the main body of the first connector extending from one end of the housing and fitting in the fitting channel, an inner wall of the fitting channel being provided with an accommodating groove, an inner wall surface of one end of the accommodating groove that is adjacent to the housing having a stopping surface, the locking surface of the locking portion of the first connector being applicable to being in contact with the stopping surface to limit the main body to move toward the end of the housing.
A connector assembly, comprising the first connector according to claim 12, preferably further comprising:
a second connector, the second connector extending from the other end of a housing of the first connector and fitting in a main body of a contact of the first connector.
An electronic device, comprising the first connector according to claim 12, or comprising the connector assembly according to claim 13.
A vehicle, comprising the first connector according to claim 12, or comprising the connector assembly according to claim 13, or comprising the electronic device according to claim 14.