WO2023093308A1

WO2023093308A1 - Ground-powered electric vehicle and shoegear

Info

Publication number: WO2023093308A1
Application number: PCT/CN2022/123485
Authority: WO
Inventors: 武杰文; 曲天威; 朱丹; 张立臣; 李雪莉; 李新; 付学光; 殷福久; 杨浩; 冯俊; 张一成; 高洪光; 曲文涛; 裴文利
Original assignee: 中车大连机车车辆有限公司; 大连华枫科技有限公司; 东北大学; 大连鼎力交通轨道设备有限公司
Priority date: 2021-11-29
Filing date: 2022-09-30
Publication date: 2023-06-01
Also published as: CN114132180A

Abstract

A ground-powered electric vehicle and a shoegear. The shoegear comprises a shoe plate and a power receiving assembly; through holes are formed in the shoe plate; the power receiving assembly penetrates through the through holes; the power receiving assembly comprises current receiving columns (2) and elastic pieces (7); accommodating spaces for accommodating the elastic pieces (7) are formed between the current receiving columns (2) and the inner walls of the through holes; the upper ends of the elastic pieces (7) abut against the shoe plate, and the lower ends abut against the current receiving columns (2); and the lower ends of the current receiving columns (2) extend out of the through holes and are configured to be in sliding contact with a ground power supply module (5) for power-on. A copper bar structure is replaced with the current receiving columns (2), and direct elastic buffering between the current receiving columns (2) and the ground power supply module (5) is achieved by means of the elastic pieces (7).

Description

A ground-powered electric vehicle and power-receiving boots

technical field

The invention relates to the technical field of vehicles, in particular to a ground-powered electric vehicle and a power receiving shoe.

Background technique

In the prior art, the ground power supply electric vehicle power receiving shoe is generally a copper strip structure extending in the same direction as the ground power supply module, which is a component that is most frequently replaced and consumes a lot of energy. The copper strip of the power receiving shoe is in sliding electrical contact with the ground power supply module when the vehicle is running. Electric ablation, impact deformation and fracture often occur, which directly causes the vehicle to fail to receive current and cause parking risks. Once a failure occurs, it often needs to be disassembled and replaced as a whole, which is very difficult ,Time-consuming.

The Chinese utility model patent with the notification number CN208118960U proposes a keyboard-type current-collecting shoe skateboard. A plurality of sliders connected to the conductive wire row are movably connected to the middle of the slider frame, and their tops are even and protrude from the slider frame. , the spring mechanism is stuck between the slider and the slider frame, trying to solve the phenomenon of electric ablation and impact deformation and fracture with this structure, but this obviously makes the structure of the electric shoe more complicated and thin, and its strength is reduced, which is inconvenient repair.

Based on this, the prior art still needs to be improved.

Contents of the invention

In order to solve the above-mentioned technical problems, an embodiment of the present invention proposes a ground-powered electric vehicle and power receiving boots to solve the technical problems of short service life and difficult maintenance of power receiving boots in the prior art.

On the one hand, a power-receiving shoe of a ground-powered electric vehicle disclosed in an embodiment of the present invention includes a shoe plate and a power receiving component, the shoe plate is provided with a through hole, and the power receiving component passes through the through hole,

The power receiving assembly includes a current receiving post and an elastic member, an accommodating space for the elastic member is formed between the current receiving post and the inner wall of the through hole, and the upper end of the elastic member abuts against the shoe a plate, the lower end of which abuts against the flow-receiving column;

In addition, the lower end of the current-receiving column protrudes from the through hole for sliding contact with the ground power supply module to take power.

Further, the through hole includes an upper hole and a lower hole that are connected together through, the diameter of the upper hole is smaller than the diameter of the lower hole, and the junction of the upper hole and the lower hole forms a first step surface;

The flow-receiving column includes an upper column adapted to the aperture of the upper hole, and a lower column adapted to the aperture of the lower hole, and the junction of the upper column and the lower column forms a first two steps

The outer wall of the upper column, the first step surface, the inner wall of the lower hole and the second step surface enclose the accommodating space;

The upper end of the elastic member abuts against the first stepped surface, and the lower end of the elastic member abuts against the second stepped surface.

Further, bus bars are also included;

The upper end of the flow-receiving column protrudes from the through hole to connect with the bus bar, and the upper end of the flow-receiving column is fixed above the through hole by a first fixing member.

Further, the first fixing member is a limit nut.

Further, the shoe plate includes an insulating base plate and a cylinder liner;

A mounting hole is opened on the insulating substrate, and the cylinder liner is fixed in the mounting hole;

In addition, there are multiple through holes opened on the cylinder liner, and each of the through holes is installed with the power receiving component.

Further, one end of the mounting hole has a recessed portion extending away from the center of the mounting hole, the edge of the cylinder liner has a connecting portion adapted to the recessed portion, and the connecting portion is placed on the In the recessed part, and fastened by fasteners.

Further, the front and rear ends of the insulating substrate are provided with anti-collision guide wheels.

Further, the elastic member is two magnets with the same polarity and repelling each other that are set on the flow-receiving column.

Further, the edge of the lower end surface of the flow receiving column is arc-shaped.

On the other hand, the embodiment of the present invention also discloses a ground-powered electric vehicle, which includes the above-mentioned power-receiving boots of the ground-powered electric vehicle.

Adopt above-mentioned technical scheme, the present invention has following beneficial effect at least:

The ground-powered electric vehicle and power-receiving boots provided by the present invention use the flow-receiving column instead of the copper strip structure of the prior art, and realize direct elastic buffering between the flow-receiving column and the ground power supply module through elastic parts, with simple structure, high strength, and elastic buffering The effect is good, and the sliding electrical contact between the power receiving shoe and the ground power supply module is significantly improved, and the phenomenon of electric ablation and impact deformation and fracture is greatly reduced; even if a few current receiving columns fail, the overall current receiving effect will not be affected. It is necessary to replace the fault receiving flow column, and the maintenance operation is simple.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic structural view of a ground power supply electric vehicle power receiving shoe disclosed by an embodiment of the present invention;

Fig. 2 is a view along the direction A of Fig. 1 .

Fig. 3 is an enlarged view at C of the section along the line B-B in Fig. 2 .

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are to distinguish two entities with the same name but different parameters or parameters that are not the same, see "first" and "second" It is only for the convenience of expression, and should not be construed as a limitation on the embodiments of the present invention, which will not be described one by one in the subsequent embodiments.

As shown in Figures 1 to 3, some embodiments of the present invention disclose a ground-powered electric vehicle and its power receiving shoe, the power receiving shoe includes a shoe plate and a power receiving assembly, and the shoe plate is provided with a through hole, The power receiving assembly passes through the through hole, the power receiving assembly includes a current receiving post 2 and an elastic member 7, and the elastic member 7 is accommodated between the current receiving post 2 and the inner wall of the through hole. The upper end of the elastic member 7 abuts against the shoe plate, and the lower end abuts against the current receiving column 2; and, the lower end of the current receiving column 2 extends out of the through hole for power supply to the ground Module 5 slides to get electricity.

In this embodiment, the flow-receiving column 2 is used to replace the copper bar structure of the prior art, and the direct elastic buffer between the flow-receiving column 2 and the ground power supply module 5 is realized through the elastic member 7. The structure is simple, the strength is high, and the elastic buffer effect is good, which significantly improves the receiving The sliding electrical contact between the electric shoe and the ground power supply module 5 greatly reduces the phenomenon of electric ablation and impact deformation and fracture; even if some current receiving column 2 fails, it will not affect the overall current receiving effect, and the return section only needs to replace the faulty receiving column 2. Flow column 2, easy maintenance and operation.

On the basis of the above-mentioned embodiments, as shown in FIG. 3 , the through-holes include an upper hole and a lower hole that are connected together in a through-connected manner. The aperture of the hole is smaller than the aperture of the lower hole, and the junction of the upper hole and the lower hole forms a first stepped surface;

The flow-receiving column 2 includes an upper column 6 adapted to the aperture of the upper hole, and a lower column 3 adapted to the aperture of the lower hole, the upper column 6 and the lower column 3 The joint forms a second step surface;

The outer wall of the upper column 6, the first step surface, the inner wall of the lower hole and the second step surface enclose the accommodating space;

The upper end of the elastic member 7 abuts against the first stepped surface, and the lower end of the elastic member 7 abuts against the second stepped surface.

The flow-receiving column 2 is in the shape of an inverted T-shaped round table as a whole, and the thick end protrudes from the bottom of the cylinder liner 4, and is in sliding contact with the ground power supply module 5 to obtain electricity. The thin end of the column 2 protrudes from the hole in the upper cover of the cylinder liner 4 and is used for powering the vehicle.

When in use, when the power receiving shoe falls and the current receiving column 2 touches the ground power supply module 5, the elastic member 7 can give the current receiving column 2 an elastic buffer to avoid rigid contact between the current receiving column 2 and the ground power supply module 5, thereby effectively The flow-receiving column 2 is protected, and under the action of elastic pressure, the contact between the lower end of the flow-receiving column 2 and the ground power supply module 5 can be effectively ensured to ensure the stability of power supply.

In some preferred embodiments, the elastic member 7 is two magnets with the same polarity and repelling each other that are set on the flow-receiving column 2 . It is also possible to use a spring abutment, an inflatable assembly, etc. as the elastic member 7 . The edge of the lower end surface of the flow receiving column 2 is preferably arc-shaped. During the operation of the vehicle, it is beneficial to the sliding of the lower end of the flow-receiving column 2 .

On the basis of the above-mentioned embodiments, the power-receiving boots of ground-powered electric vehicles disclosed in some embodiments of the present invention also include a bus bar (not shown in the figure); the upper end of the current-receiving column 2 extends out of the through hole and The bus bar is connected, and the upper end of the current receiving column 2 is fixed above the through hole through the first fixing member. The first fixing member can be a stop nut 8, that is, it is arranged on the upper part of the current receiving column 2 External thread, the limit nut 8 is screwed into the external thread to realize fastening. That is, the thin end of the flow-receiving column 2 protrudes from the upper cover hole of the cylinder liner 4, and is connected with the limit nut 8 and the busbar. The busbar can be a busbar to realize power supply to the vehicle.

On the basis of the above-mentioned embodiment, as shown in Fig. 1-Fig. 3, the ground-powered electric vehicle power-receiving boots disclosed in some embodiments of the present invention include an insulating substrate 1 and a cylinder liner 4; the insulating substrate 1 is provided with an installation hole, and the cylinder liner 4 is fixed in the installation hole; and, the cylinder liner 4 has a plurality of through holes, and the plurality of through holes are distributed, and each of the through holes The power receiving components are installed in the holes. A plurality of power receiving components are connected to the bus bar. One end of the mounting hole has a concave portion extending away from the center of the mounting hole, the edge of the cylinder liner 4 has a connecting portion adapted to the concave portion, and the connecting portion is placed in the concave portion , and fastened by fasteners. In order to further improve the stability of the electrical connection, the front and rear ends of the insulating substrate 1 are provided with anti-collision guide wheels 9 .

In some embodiments of the present invention, the ground-powered electric vehicle and the power-receiving shoe are distributed with piston-type current-receiving columns 2 and cylinder sleeves 4 on the insulating substrate 11 . The flow-receiving column 2 is in the shape of an inverted T-shaped circular platform, and the lower end surface of the thick end is arc-shaped, protruding from the bottom of the cylinder liner 4, and slidingly contacts with the ground power supply module 5 to obtain electricity. Two magnets of the same pole repelling each other on the thin end of the flow receiving column 2 are press-fitted in the cylinder liner 4, and the thin end of the flow receiving column 2 protrudes from the upper hole of the cylinder liner 4 to meet the limit nut 8 and the confluence Copper row (not shown in the figure) connection. The two ends of the insulating substrate 1 are provided with anti-collision guide wheels 9 .

It should be pointed out that the various components or steps in the above-mentioned embodiments can intersect, replace, add, and delete each other. Therefore, the combinations formed by these reasonable permutations, combinations, and transformations should also belong to the protection scope of the present invention, and should not The scope of protection of the invention should be limited to the examples described.

The above are exemplary embodiments disclosed in the present invention, and the sequence disclosed in the above embodiments of the present invention is only for description, and does not represent the advantages or disadvantages of the embodiments. However, it should be noted that the discussion of any of the above embodiments is exemplary only, and is not intended to imply that the scope (including the claims) disclosed by the embodiments of the present invention is limited to these examples. Various changes and modifications are made. The functions, steps and/or actions of the method claims in accordance with the disclosed embodiments described herein need not be performed in any particular order. In addition, although the elements disclosed in the embodiments of the present invention may be described or required in an individual form, they may also be understood as a plurality unless explicitly limited to a singular number.

Those of ordinary skill in the art should understand that: the discussion of any of the above embodiments is exemplary only, and is not intended to imply that the scope (including claims) disclosed by the embodiments of the present invention is limited to these examples; under the idea of the embodiments of the present invention , technical features in the above embodiments or in different embodiments can also be combined, and there are many other changes in different aspects of the embodiments of the present invention as described above, which are not provided in details for the sake of brevity. Therefore, any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principles of the embodiments of the present invention shall be included within the protection scope of the embodiments of the present invention.

Claims

A power receiving shoe of a ground-powered electric vehicle, characterized in that it includes a shoe plate and a power receiving assembly, the shoe plate is provided with a through hole, and the power receiving assembly passes through the through hole,

The power receiving assembly includes a current receiving post and an elastic member, an accommodating space for the elastic member is formed between the current receiving post and the inner wall of the through hole, and the upper end of the elastic member abuts against the shoe a plate, the lower end of which abuts against the flow-receiving column;

In addition, the lower end of the current-receiving column protrudes from the through hole for sliding contact with the ground power supply module to take power.
According to claim 1, the power receiving shoe of a ground-powered electric vehicle is characterized in that the through hole includes an upper hole and a lower hole that are connected together through, and the aperture of the upper hole is smaller than the aperture of the lower hole, The junction of the upper hole and the lower hole forms a first stepped surface;

The flow-receiving column includes an upper column adapted to the aperture of the upper hole, and a lower column adapted to the aperture of the lower hole, and the junction of the upper column and the lower column forms a first two steps

The outer wall of the upper column, the first step surface, the inner wall of the lower hole and the second step surface enclose the accommodating space;

The upper end of the elastic member abuts against the first stepped surface, and the lower end of the elastic member abuts against the second stepped surface.
The power receiving shoe of a ground-powered electric vehicle according to claim 1, further comprising a bus bar;

The upper end of the flow-receiving column protrudes from the through hole to connect with the bus bar, and the upper end of the flow-receiving column is fixed above the through hole by a first fixing member.
The power receiving shoe of a ground-powered electric vehicle according to claim 3, wherein the first fixing member is a limit nut.
The power receiving shoe of a ground-powered electric vehicle according to claim 1, wherein the shoe plate includes an insulating substrate and a cylinder liner;

A mounting hole is opened on the insulating substrate, and the cylinder liner is fixed in the mounting hole;

In addition, there are multiple through holes opened on the cylinder liner, and each of the through holes is installed with the power receiving component.
According to claim 5, the power receiving shoe of a ground-powered electric vehicle, wherein one end of the mounting hole has a concave portion extending away from the center of the mounting hole, and the edge of the cylinder liner has a The connection part is matched with the part, the connection part is placed in the recessed part, and is fastened and connected by a fastener.
According to claim 5, the power receiving shoe of a ground-powered electric vehicle is characterized in that anti-collision guide wheels are provided at both front and rear ends of the insulating substrate.
The power receiving shoe of a ground-powered electric vehicle according to claim 1, wherein the elastic member is two magnets with the same polarity and repelling each other that are set on the current receiving column.
The power receiving shoe of an electric vehicle powered by ground according to claim 1, wherein the edge of the lower end surface of the current receiving column is arc-shaped.
A ground-powered electric vehicle, characterized in that it comprises the ground-powered electric vehicle power receiving shoe according to any one of claims 1-9.