CN109921217B

CN109921217B - Electric power connector

Info

Publication number: CN109921217B
Application number: CN201910264881.0A
Authority: CN
Inventors: 程建华; 宋术全; 赵洪利; 刘阳; 刘朝毅; 杨杰
Original assignee: China Academy of Railway Sciences Corp Ltd CARS; Locomotive and Car Research Institute of CARS; Beijing Zongheng Electromechanical Technology Co Ltd; Tieke Aspect Tianjin Technology Development Co Ltd
Current assignee: China Academy of Railway Sciences Corp Ltd CARS; Locomotive and Car Research Institute of CARS; Beijing Zongheng Electromechanical Technology Co Ltd; Tieke Aspect Tianjin Technology Development Co Ltd
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2024-07-09
Anticipated expiration: 2039-04-03
Also published as: CN109921217A

Abstract

The present application provides a power connector comprising: a first connection part, a second connection part, and a support; the first connecting part is arranged on one connecting surface of the supporting piece, and the second connecting part is arranged on the other connecting surface of the supporting piece; conductive watchbands are respectively arranged in the contact fork of the first connecting part and the contact fork of the second connecting part; wherein the wristband is provided with a plurality of height-adjustable contact surfaces for electrical connection with the terminating conductors. The application can improve the pressing force on the terminating conductor, and the stronger pressing force ensures that the contact between the power connector and the terminating conductor becomes more reliable and simultaneously enhances the capability of the power connector for coping with vibration. The watchband is used for connecting the termination conductors, so that the contact area and the current carrying capacity of the power connector under the same width are improved.

Description

Electric power connector

Technical Field

The application relates to the technical field of power electronics, in particular to a power connector.

Background

Connectors and their components are important mating interface elements in rail transit. The main purpose of the connector is to provide connection and disconnection of the terminated conductors, the quality of the connection being directly related to whether the whole connected power electronic system can operate safely and reliably. Along with the rapid development of the rail traffic industry, the application range of vehicles is continuously expanded, and along with the improvement of speed grades and the demand of light weight, the application environment and the performance grade of the connector are required to be higher and higher.

The fork type connector applied to the existing power module is mostly of an open structure, so that the protection and insulation performance is poor, and the problems of insufficient connection pressure, low current carrying capacity and the like exist. Therefore, the current carrying capacity, insulation performance and other key indexes of the existing connector cannot meet the existing requirements in practical application.

Thus, there is a need to upgrade existing connectors to improve the performance of the connector in all respects.

Disclosure of Invention

Aiming at the problems in the prior art, the application provides a power connector, which can improve the current carrying capacity of the connector.

In order to solve the technical problems, the application provides the following technical scheme:

The present application provides a connector comprising: a first connection part, a second connection part, and a support;

The first connecting part is arranged on one connecting surface of the supporting piece, and the second connecting part is arranged on the other connecting surface of the supporting piece; conductive watchbands are respectively arranged in the contact fork of the first connecting part and the contact fork of the second connecting part;

Wherein the wristband is provided with a plurality of height-adjustable contact surfaces for electrical connection with the terminating conductors.

Further, the watchband further includes: a connection beam for connecting each of the contact surfaces;

the connecting beam includes: the transverse column and the connecting columns are fixedly connected with the transverse column;

Each contact surface is provided with a connecting hook, and each contact surface is respectively hooked with each connecting column through each connecting hook.

Further, the connecting posts are fixed on the transverse posts in parallel.

Further, the connecting posts and the cross posts are all arranged at a preset angle.

Further, the preset angle is greater than 0 degrees, and the preset angle is less than or equal to 90 degrees.

Further, the cross column and the plurality of connecting columns are of an integrally formed structure.

Further, the method further comprises the following steps: a first insulating member and a second insulating member;

The first insulating part and the second insulating part are fixedly connected with the supporting piece respectively;

Wherein the first connection member is disposed in a first cavity formed between the first insulating member and the support; the second connection member is disposed in a second cavity formed between the second insulation member and the support.

Further, the first insulating member is provided with a first through hole;

The inner wall of the first through hole is provided with threads, and the threads are used for being connected with first screws so that the first connecting part is fixedly arranged in the first cavity.

Further, a second through hole is formed in the second insulating member;

the inner wall of the second through hole is provided with threads, and the threads are used for being connected with a second screw so that the second connecting part is fixedly arranged in the second cavity.

Optionally, the first insulating member is fixedly connected to the support member through a screw thread.

Optionally, the first insulating component is fixedly connected with the support member through a buckle.

Optionally, the second insulating member is fixedly connected to the support member through a screw thread.

Optionally, the second insulating component is fixedly connected with the support member through a buckle.

As can be seen from the above technical solution, the present application provides a power connector, in which by arranging watchbands in the contact prongs of the first connecting member and in the contact prongs of the second connecting member, the pressing force of the first connecting member and the second connecting member on the terminating conductor is improved, and the stronger pressing force makes the contact between the connector and the terminating conductor more reliable and also enhances the capability of the connector to cope with vibration. The watchband is used for connecting the termination conductors, so that the contact area and the current carrying capacity of the power connector under the same width are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a power connector according to an embodiment of the application.

Fig. 2 is a schematic structural diagram of a watchband in a power connector according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a connection beam in a power connector according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of another power connector according to an embodiment of the present application.

Reference numerals:

10. A first connecting member;

20. a support;

30. a second connecting member;

40. Watchband;

401. a connecting beam;

402. A contact surface;

412. Connecting hook

441. A cross column;

442. a connecting column;

50. a first insulating member;

501. a first through hole;

502. A first screw;

60. A second insulating member;

601. Second through hole

602. And a second screw.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Before the technical solutions in the embodiments of the present invention are clearly and completely described, the structure of the existing connector will be described in detail. The existing connector is of a three-layer structure, wherein the middle layer structure is a supporting component with insulating performance, and the upper layer structure and the lower layer structure of the supporting component are power connection components with conductive performance. The upper and lower layers of power connection parts are fixed on the middle support part. Wherein the cross section of the power connecting part of the upper layer and the lower layer is in the shape of a tuning fork.

The 2 faces of the support piece, which extend in the length direction and have the largest area, are the connecting faces of the support piece respectively, and when the support piece is used, the two power connecting parts are fixed on the 2 connecting faces of the support piece.

It should be noted that, the general cross section is a cross section in the width direction, the longitudinal section is a cross section in the length direction, for example, a cylinder body, the cross section is a circle, and the longitudinal section is a rectangle; and the longitudinal section of the cone is triangular, and the cross section of the cone is circular.

In use, the connector inserts the termination conductors to be connected into the "U" row space of the power connection component. The terminating conductor is one end of the conductor, and the connector is used for connecting a plurality of terminating conductors so as to electrically connect the connected terminating conductors. The problem of low current carrying capacity of the existing power connection components is caused by the insufficient pressure of the power connection components on the terminating conductors inserted therein and the small contact area of the power connection components with the terminating conductors. In addition, most of the existing power connectors are in an open structure, so that the protection and insulation performances of the power connectors are poor. It is particularly urgent to upgrade existing connectors to improve the performance of the connectors in all respects.

The key index of the existing connector in practical application is considered to be unable to adapt to the existing requirements. The application provides the power connector, which improves the pressing force of the power connector on the terminating conductor, and the stronger pressing force enables the contact between the connector and the terminating conductor to be more reliable, simultaneously enhances the capacity of the connector for coping with vibration, and simultaneously improves the contact area and the current carrying capacity of the connector under the same width.

Based on the above, the present application provides a power connector, see fig. 1, comprising: a first connection part 10, a second connection part 30, and a support 20;

The first connection part 10 is provided at the top of the supporter 20, and the second connection part 30 is provided at the bottom of the supporter 20; a band 40 having electric conductivity is provided in each of the contact prongs of first connecting member 10 and the contact prongs of second connecting member 30.

It should be noted that, in the embodiment of the present application, the contact fork is a portion for connecting the terminating conductors to be connected in the existing connector. In an embodiment of the application, the contact fork is used to secure the wristband. A wristband is a component for connecting the terminating conductors to be connected.

In an embodiment of the application, a wristband is mounted in the contact prongs of the first connecting part and in the contact prongs of the second connecting part, respectively, the first connecting part and the second connecting part being electrically connected to the terminating conductor to be connected by means of the wristband, respectively. The pressing force of the power connector on the terminating conductor is improved, and the stronger pressing force enables the contact between the connector and the terminating conductor to be more reliable, and meanwhile the capacity of the connector for coping with vibration is enhanced.

Based on the above, in order to enhance the current carrying capability of the connector and aim at the use characteristics of single-side plug-in of the connector, the application also provides an embodiment of a watchband specific structure.

Referring to fig. 2, the wristband specifically includes: a connecting beam 401 and a plurality of contact surfaces 402; referring to fig. 3, the connection beam 401 includes: a cross column 441 and a plurality of connection columns 442 fixedly connected to the cross column 441;

Each contact surface 402 is provided with a connection hook 412, and a plurality of contact surfaces 402 are respectively hooked with a plurality of connection posts 442 through a plurality of connection hooks 412.

It should be noted that the contact surface 402 adopts an asymmetric structure, and the length of the contact surface 402 is greater than the distance between two adjacent connection posts 442, which further improves the pressing force of the first connection member 10 and the second connection member 30 on the terminating conductor in the power connector.

In the embodiment of the present application, the plurality of connecting columns 442 are fixed on the cross columns 441 in parallel, and the connecting columns 442 and the cross columns 441 are disposed at a preset angle, so that an optimal effect is achieved between the applicable angles and the structural widths of the first connecting member 10 and the second connecting member 30, and meanwhile, the contact area and the current carrying capacity of the connector under the same width are improved.

Because the plurality of connecting columns 442 are mutually parallel and fixed on the transverse column 441, the connecting columns 442 and the transverse column 441 are arranged at a preset angle, so that the first connecting component 10 and the second connecting component 30 have the characteristics of small insertion distance and large angle tolerance, and the smaller size of the mounting surface is realized without reducing the performance, and the requirement on the mounting surface is reduced.

Preferably, the predetermined angle between the connecting post 442 and the transverse post 441 is greater than 0 degrees, and the predetermined angle is less than or equal to 90 degrees. Further, in order to improve the connection performance of the connection beam 401 in the embodiment of the present application, the cross post 441 and the plurality of connection posts 442 of the connection beam 401 are integrally formed.

Based on the above, in order to achieve improvement of the insulation performance of the power connector, as shown in fig. 4, the power connector in the above embodiment further includes: a first insulating member 50 and a second insulating member 60;

Wherein the first insulating member 50 and the second insulating member 60 are fixedly connected to the supporting member 20, respectively;

Referring to fig. 4, the first connection part 10 is disposed in a first cavity formed after the first insulation part 50 is fixedly connected with the support 20; the second connecting member 30 is disposed in a second cavity formed by fixedly connecting the second insulating member 60 with the supporting member 20.

Wherein the first insulating member 50 is provided with a first through hole 501; the first through hole has threads on an inner wall thereof for coupling with the first screw 502 to fix the first coupling member 10 in the first cavity formed after the first insulating member 50 is fixedly coupled with the support member 20.

The second insulating member 60 is provided with a second through hole 601; the inner wall of the second through hole has threads for coupling with the second screw 602 to fix the second coupling member 30 in the second cavity formed after the second insulating member 60 is fixedly coupled with the support member 20.

As is apparent from the above description, the connector according to the embodiment of the present application adopts a closed structure, adds the first insulating member and the second insulating member on the basis of the existing connector, and places the first connecting member and the second connecting member in the first cavity and the second cavity formed after the first insulating member and the second insulating member are fixedly connected with the supporting member, respectively, which enables better electrical insulation performance to be obtained when the power connector according to the embodiment of the present application is used, and achieves improvement of insulation performance of the power connector.

Based on the above, in order to achieve that the first insulating component and the second insulating component are fixedly connected with the supporting piece respectively, the embodiment of the application provides a fixed connection mode, wherein the first insulating component is fixedly connected with the supporting piece through threads; the second insulating part is fixedly connected with the supporting piece through threads.

Based on the above, in order to achieve that the first insulating component and the second insulating component are fixedly connected with the supporting piece respectively, the embodiment of the application provides another fixed connection mode, wherein the first insulating component is fixedly connected with the supporting piece through a buckle; the second insulating part is fixedly connected with the supporting piece through a buckle.

Referring to fig. 4, in the embodiment of the present application, it is preferable to use: the first insulating part is fixedly connected with the supporting piece through threads, and the second insulating part is fixedly connected with the supporting piece through threads.

As can be seen from the above description, the power connector according to the embodiment of the present application adopts a closed design as a whole, and enhances safety protection compared with an open design of a conventional connector. And the contact area with the water cooling plate is reduced under the condition of not influencing the integral structural strength, and meanwhile, bolts are respectively added at two sides to improve the structural strength.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for a hardware+program class embodiment, the description is relatively simple, as it is substantially similar to the method embodiment, as relevant see the partial description of the method embodiment.

The foregoing describes specific embodiments of the present disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

Although the application provides method operational steps as described in the examples or flowcharts, more or fewer operational steps may be included based on conventional or non-inventive labor. The order of steps recited in the embodiments is merely one way of performing the order of steps and does not represent a unique order of execution. When implemented by an actual device or client product, the instructions may be executed sequentially or in parallel (e.g., in a parallel processor or multi-threaded processing environment) as shown in the embodiments or figures.

Although the present description provides method operational steps as described in the examples or flowcharts, more or fewer operational steps may be included based on conventional or non-inventive means. The order of steps recited in the embodiments is merely one way of performing the order of steps and does not represent a unique order of execution. When implemented in an actual device or end product, the instructions may be executed sequentially or in parallel (e.g., in a parallel processor or multi-threaded processing environment, or even in a distributed data processing environment) as illustrated by the embodiments or by the figures. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, it is not excluded that additional identical or equivalent elements may be present in a process, method, article, or apparatus that comprises a described element.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present specification. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The foregoing is merely an example of an embodiment of the present disclosure and is not intended to limit the embodiment of the present disclosure. Various modifications and variations of the illustrative embodiments will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principles of the embodiments of the present specification, should be included in the scope of the claims of the embodiments of the present specification.

Claims

1. An electrical connector for use in rail transit, comprising: a first connection part, a second connection part, and a support;

Wherein the watchband is provided with a plurality of height-adjustable contact surfaces for electrically connecting with the terminating conductors;

The watchband further comprises: a connection beam for connecting each of the contact surfaces;

Each contact surface is provided with a connecting hook, each contact surface is respectively hooked with each connecting column through each connecting hook, and the length of each contact surface is longer than the distance between two adjacent connecting columns;

the connecting columns and the transverse columns are arranged at a preset angle, the preset angle is larger than 0 degree, and the preset angle is smaller than 90 degrees.

2. The power connector of claim 1, wherein each of said connecting posts is secured to said cross post in parallel relation to each other.

3. The electrical power connector of claim 1, wherein the cross-post and the plurality of connecting posts are an integrally formed structure.

4. The power connector of claim 1, further comprising: a first insulating member and a second insulating member;

5. The power connector of claim 4, wherein the first insulating member is provided with a first through hole;

6. The power connector of claim 4, wherein the second insulating member is provided with a second through hole;

7. The electrical power connector of claim 4, wherein the first insulating member is fixedly coupled to the support member by threads.

8. The electrical power connector of claim 4, wherein the first insulating member is fixedly connected to the support member by a snap fit.

9. The power connector of claim 4, wherein the second insulating member is fixedly connected to the support member by threads.

10. The electrical power connector of claim 4, wherein the second insulating member is fixedly connected to the support by a snap fit.