Female terminal of automobile power supply connector

Abstract

The utility model relates to a female end terminal of an automobile power supply connector. The female end terminal comprises a wiring end and a connecting sleeve with a cylindrical structure. At least two notches are formed in an opening in one end of the connecting sleeve to form an elastic contraction part, and a plurality of protruding points protruding inwards in the radial direction are evenly distributed on the inner wall of the elastic contraction part in the circumferential direction. When the male end terminal is inserted, the elastic contraction part elastically deforms inwards in the radial direction, and the convex points and the outer wall of the male end form elastic clamping contact in interference fit. According to the design, a traditional pure cylindrical sleeve structure with high tolerance requirements is abandoned, the machining cost is reduced, and the production efficiency is improved; vehicle vibration is effectively dealt with through a unique matching mode, the electric connection stability is improved, and vehicle system operation is guaranteed; the elastic contraction part is naturally opened and closed to meet the requirement of repeated plugging, and the service life of the connector is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to connector terminal technical field, concretely is a kind of automobile power connector female terminal. BACKGROUND

[0002] In the modern transportation field, as the key tool of goods transportation, the power connection stability between the truck head and the trailer is crucial. At present, the female structure of the connector used for the power connection between the truck head and the trailer has many problems in actual application.

[0003] Most of the existing connector female end adopts a cylindrical sleeve structure, and a male end with a cylindrical structure is simply inserted and matched to realize electrical connection. This structure requires extremely strict precision of tolerance matching. In actual production process, in order to meet such high tolerance requirements, a large amount of manpower, material resources and advanced processing equipment need to be invested, which undoubtedly greatly increases the processing cost.

[0004] In addition, due to the simple matching of the cylindrical sleeve and the male end, in the process of vehicle driving, the electrical connection stability is poor in the face of bumping, vibration and other situations caused by complex road conditions. Slight displacement or looseness may cause connection interruption, poor contact and other problems, thereby affecting the normal operation of the entire vehicle system, and even may cause safety hazards.

[0005] In summary, the existing female structure of the connector used for the power connection between the truck head and the trailer has defects such as high processing cost and poor electrical connection stability, and an innovative design is needed to improve it to meet the high requirements of the power connection of the heavy truck under complex working conditions. INVENTION CONTENTS

[0006] The utility model provides a kind of automobile power connector female terminal for the deficiency in the background art.

[0007] The utility model adopts the technical scheme that a kind of automobile power connector female terminal, including terminal and the connection sleeve of the connector male end insertion and matching, the connection sleeve is cylindrical structure, and at least two notches are formed on the opening of one end of connection sleeve to form elastic shrinkage part, and the inner wall surface of elastic shrinkage part is uniformly distributed with multiple radially inward protruding convex points along the circumference, when male end terminal is inserted into elastic shrinkage part, elastic shrinkage part generates radial inward elastic deformation, so that convex point and male end outer wall form the elastic clamping contact of interference fit.

[0008] Further, the length of the notch is 1 / 3-1 / 5 of the total length of the connection sleeve.

[0009] Further, the curvature of the notch is 5-15 degrees.

[0010] Further, the two cuts are arranged opposite to each other.

[0011] Further, the convex point is rectangular or square structure, and the convex point is provided with a guide inclined surface at least on one end of the connecting end opening.

[0012] Further, the connecting sleeve is provided with a concave ring at the outer circle of one end of the connecting end.

[0013] Further, the convex point is four, which is arranged in a circumferential array on the inner wall of the connecting sleeve.

[0014] The beneficial effects of the utility model are:

[0015] 1. Reduce the processing cost, the application discards the traditional simple cylinder sleeve structure design which requires high tolerance matching. By setting the cut at the opening of the connecting sleeve to form the elastic contraction part, and setting the convex point which protrudes radially inward on the inner wall, the strict requirement for processing precision is greatly reduced. It is no longer necessary to invest a large amount of manpower, material resources and advanced equipment to ensure high-precision tolerance matching, so that the production process is more simple, thereby effectively reducing the overall processing cost, improving the production efficiency, and enhancing the price competitiveness of the product in the market.

[0016] 2. Improve the stability of the electrical connection: when the male terminal is inserted into the elastic contraction part, the elastic contraction part will produce radial elastic deformation, so that the convex point and the outer wall of the male terminal form an elastic clamping contact with interference. Compared with the traditional simple cylinder sleeve matching, this unique design can better cope with the bumps and vibrations caused by complex road conditions during vehicle driving. Even in a severe vibration environment, the close interference fit between the convex point and the outer wall of the male terminal can effectively reduce the problems of connection interruption, poor contact and other problems caused by displacement or loosening, ensuring the continuous stability of the electrical connection, and effectively ensuring the normal operation of the entire vehicle system, reducing the safety hazard.

[0017] 3. For the actual use requirement of repeated plugging and unplugging, by setting the cut, when the male terminal is inserted, the elastic contraction part can naturally open and close, ensuring good plugging force while ensuring the stability of the plugging force. This design can meet the requirements of repeated plugging and unplugging, significantly improve the service life of the connector, reduce the cost waste and time loss caused by frequent replacement of the connector, and provide a more reliable and durable power connection solution for users.

[0018] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. The utility model will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a structural schematic view of the utility model.

[0020] Fig. 2 It is a side view schematic diagram of the utility model.

[0021] Fig. 3 It is an end view schematic diagram of the utility model.

[0022] Figs. 1-3 1, terminal; 2, connecting sleeve; 3, cutout; 4, elastic contraction part; 5, convex point; 6, guide inclined surface; 7, concave ring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0024] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indications also change accordingly.

[0025] The utility model provides a kind of automobile power connector female terminal.

[0026] In the embodiment, with reference to Figs. 1-3 The automobile power connector female terminal includes a terminal 1 and a connecting sleeve 2 that mates with a male connector. The connecting sleeve 2 is a cylindrical structure, and at least two cutouts 3 are provided on one end of the connecting sleeve to form an elastic contraction part 4. The inner wall surface of the elastic contraction part 4 is evenly distributed with a plurality of convex points 5 that protrude radially inward in the circumferential direction. When the male terminal is inserted into the elastic contraction part, the elastic contraction part produces elastic deformation radially inward, causing the convex points 5 to form an interference fit elastic clamping contact with the outer wall of the male terminal.

[0027] In the above technical solution, at least two cutouts are provided on one end of the connecting sleeve of the female terminal to form an elastic contraction part. This elastic contraction part is elastic and can produce elastic deformation radially inward when the male terminal is inserted. At the same time, the inner wall surface of the elastic contraction part is evenly distributed with a plurality of convex points that protrude radially inward in the circumferential direction. The convex points form an interference fit elastic clamping contact with the outer wall of the male terminal when the elastic contraction part deforms, achieving tight fixation of the electrical connection.

[0028] Fundamentally change the traditional simple cylinder sleeve structure on the high-precision tolerance matching. On the one hand, it reduces the processing difficulty and cost, and improves the production efficiency; on the other hand, through the cooperation of the elastic contraction part and the convex point, the stability of the electrical connection is significantly enhanced, which can effectively resist the vibration and displacement in the process of vehicle driving, reduce the problem of poor contact, and ensure the stable operation of the vehicle system. In addition, the elastic design of the elastic contraction part also provides the possibility of multiple plug-in and plug-out, prolongs the service life of the connector.

[0029] Specifically, the length of the cutout is 1 / 3-1 / 5 of the total length of the connecting sleeve.

[0030] In this embodiment, the length of the cutout is limited to 1 / 3-1 / 5 of the total length of the connecting sleeve, which can ensure that the elastic contraction part has sufficient elastic deformation ability while maintaining the stability of the overall structure of the connecting sleeve. If the cutout is too short, the elastic contraction part will not have enough elasticity to achieve a good interference fit with the male end; if the cutout is too long, it may cause the connecting sleeve to have reduced structural strength, affecting overall performance.

[0031] Specifically, the arc of the cutout is 5-15 degrees.

[0032] In this embodiment, the arc of the cutout is set to 5-15 degrees, which helps the elastic contraction part to open and close with appropriate angle and force when the male end is inserted.

[0033] Specifically, the two cutouts are arranged opposite to each other.

[0034] In this embodiment, the two cutouts are arranged opposite to each other, which can make the elastic contraction part produce symmetrical elastic deformation when the male end is inserted, with uniform stress on both sides. Compared with non-opposite arrangement, opposite arrangement can more effectively control the deformation direction and degree of the elastic contraction part, ensuring that the convex points uniformly contact the outer wall of the male end.

[0035] Specifically, the convex point is a rectangular or square structure, and the convex point is provided with a guide slope 6 at least on one end of the connecting end opening.

[0036] In this embodiment, the convex point adopts a rectangular or square structure, which can provide a larger contact area and enhance the friction and clamping force with the outer wall of the male end compared to other shapes such as a circle. The guide slope is arranged on one end of the connecting end opening, which can guide the insertion of the male end and reduce damage to the convex point and the male end during insertion.

[0037] Specifically, the connecting sleeve is provided with a recessed ring 7 on the outer circle of one end of the connecting end.

[0038] In the embodiment, a concave ring is arranged on the outer ring of one end of the connecting sleeve at the terminal end, the concave ring can increase the friction between the connecting sleeve and the external fixed structure (such as a mounting seat and the like), and can also play a positioning role to some extent, so that the connecting sleeve can be accurately installed and fixed during the installation process.

[0039] Specifically, the convex points are four and are arranged in a circumferential array on the inner wall of the connecting sleeve.

[0040] In the embodiment, the number of the convex points is four, and the convex points are arranged in a circumferential array on the inner wall of the connecting sleeve. The four convex points are uniformly distributed in the circumferential direction, can elastically clamp the male end from multiple directions when the male end is inserted, ensure the stable position of the male end in the connecting sleeve, and ensure the uniform clamping force in each direction.

[0041] All skilled persons should know that, although the utility model has been described according to the above specific embodiments, the utility model idea is not limited to the utility model, and any modification using the utility model idea will be included in the patent protection range.

Claims

1. A female terminal of an automobile power connector, comprising a wiring end and a connecting sleeve which is inserted into a male terminal of the connector, the connecting sleeve being in a cylindrical structure, characterized in that: At least two cuts are arranged on the opening end of the connecting sleeve to form an elastic contraction part, and a plurality of radially inwardly protruding convex points are evenly distributed on the inner wall surface of the elastic contraction part in the circumferential direction. When the male terminal is inserted into the elastic contraction part, the elastic contraction part is elastically deformed radially inwardly, so that the convex points are in elastic clamping contact with the male terminal outer wall in an interference fit.

2. The automotive power connector female terminal of claim 1, wherein: The length of the cut is 1 / 3-1 / 5 of the total length of the connecting sleeve.

3. The automotive power connector female terminal of claim 1, wherein: The curvature of the cut is 5-15 degrees.

4. The automotive power connector female terminal of claim 1, wherein: The two cuts are arranged opposite to each other.

5. The automotive power connector female terminal of claim 1, wherein: The convex point is a rectangular or square structure, and at least one guide slope is arranged on the opening end of the connecting end.

6. The automotive power connector female terminal of claim 1, wherein: A recessed ring is arranged on the outer circle of the connecting sleeve at one end of the terminal end.

7. The automotive power connector female terminal according to claim 1 or 5, characterized by: The convex point is four, which are arranged in a circumferential array on the inner wall of the connecting sleeve.

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