CN101388547A

CN101388547A - Electrostatic release method and device for electric automobile

Info

Publication number: CN101388547A
Application number: CNA2008101434712A
Authority: CN
Inventors: 伍理勋; 蒋时军; 王征宇; 曾志田
Original assignee: Hunan CSR Times Electric Vehicle Co Ltd
Current assignee: CRRC Electric Vehicle Co Ltd
Priority date: 2008-10-31
Filing date: 2008-10-31
Publication date: 2009-03-18
Anticipated expiration: 2028-10-31
Also published as: CN101388547B

Abstract

The invention relates to a method for releasing static electricity of electric automobiles and a device thereof, which comprises adopting a three-end capacitance method to release static electricity for electric automobiles, mounting a three-end capacitance circuit between a main circuit and an automobile body of a whole automobile, and releasing static electricity for electric automobiles through three capacitors which are connected in a triangle-star shape. The three-end capacitance circuit is formed by three capacitances which are connected in a triangle-star shape, the first capacitance is connected with the input of a main circuit of an electric automobile, the second capacitance is connected with the output of a main circuit of an electric automobile, and the third capacitance is connected with the automobile body of an electric automobile. The three-end capacitance is led to put up a channel for static electricity to release from the automobile body to power networks, and static electricity is avoided from releasing through weak links of electric components (such as various circuit boards).

Description

A kind of electric automobile electrostatic release method and device

Technical field

The present invention relates to a kind of electrostatic release method and device, is a kind of electric automobile electrostatic release method and device specifically, is mainly used in various electric cars.

Background technology

Usually electric car (especially trolley bus) is for passenger's life safety; prevent because of the primary insulation of circuit when destroyed; gauze voltage injures the passenger through car body; increased primary insulation; be called two minor insulation; when even primary insulation is destroyed, also have the existence of two minor insulation, at utmost protected passenger's safety on the car.

Exactly because the existence of two minor insulation makes and insulate between whole electrical system and the car body that also insulate between each system, the rubber tyre of automobile also insulate, and causes the electromagnetic compatible environment of car load relatively poor.Insulation between electric component and the car body causes static not have discharge loop, has potential difference between each equipment.The existence of this potential difference is used our existing device security and is proposed higher requirement.And static do not discharge the loop, along with the increase meeting of electrostatic charge causes damage to the weak link of whole electrical system.

For head it off, can allow the static of car load open the door a certain hardware (as iron chains) is put into the release that static is carried out on ground by entering the station, also can car load carry a static release device (as telescopic steel wire) and carry out the release of static.But in fact this static that has only solved vehicle body discharges problem.

In addition, for working as the road surface (as the asphalt road of new shop) of automobile by static electrification, near place (as broadcasting station) or the car load more intense through wireless signal suffer the thunderbolt influence all may make car load disturb upward static.For trolley bus, these static can discharge by being subjected to electrical network.But for common motor vehicle, if these static do not have other to discharge the loop, but discharge these static through some electric components, the just very easy damage that causes electronic device of the place of these static processes, especially thunderstorm season, the asphalt road of new shop by the time, more have the victor cannot drive at radio station's annex at all.Therefore necessary this is solved.

Summary of the invention

The objective of the invention is to deficiency, propose better motor vehicle electrostatic release method of a kind of static releasing effect and device at existing motor vehicle static release.

The objective of the invention is to be achieved through the following technical solutions: a kind of motor vehicle electrostatic release method, adopt the method for three terminal capacitor to give the motor vehicle release electrostatic, between between the main circuit of car load and the car body, a three-end capacitance circuit is installed, becomes the electric capacity of the star-like connection of triangle to give the motor vehicle release electrostatic by three.Described three-end capacitance circuit is three electric capacity that become the star-like connection of triangle, and the input of the main circuit of one of them electric capacity and motor vehicle is joined, and the output of the main circuit of another electric capacity and motor vehicle is joined, and one then joins with the car body of motor vehicle in addition.Make this three terminal capacitor set up static, avoid these static to discharge by the weak link (as various circuit boards) of electric component from the passage of car body to electrical network release.

According to the motor vehicle release electrostatic device that the inventive method proposed be: a kind of motor vehicle static release device, comprise that car body, main circuit positive input bus and main circuit bear inlet highway, its characteristics are, are connected to one by three star-like three-end capacitance circuit that are connected of one-tenth triangle at the negative inlet highway of car body, main circuit positive input bus and main circuit; Wherein, an end of first electric capacity in three electric capacity is realized being electrically connected by lead with the positive input bus of main circuit; One end of second electric capacity is realized being electrically connected by lead with the negative inlet highway of main circuit; One end of the 3rd electric capacity and car body are realized being electrically connected by lead, and the other end of three electric capacity becomes each other that triangle is star-like to link together.

Advantage of the present invention is: in the purpose that reaches release electrostatic simultaneously, do not destroy whole insulation property yet, and also with low cost, highly versatile is easy to realize, and is obvious by the verification experimental verification effect, reliable and stable.

Description of drawings

Fig. 1 is a circuit principle structure schematic diagram of the present invention;

Fig. 2 installs the theory structure schematic diagram for the circuit of the present invention in motor vehicle;

Fig. 3 is the connection diagram of circuit of the present invention in motor vehicle.

Embodiment

The invention will be further described below in conjunction with the drawings and specific embodiments.

From accompanying

drawing

1,2 as can be seen, the present invention is a kind of motor vehicle electrostatic release method, a kind of motor vehicle electrostatic release method, adopt the method for three terminal capacitor to give the motor vehicle release electrostatic, between between the main circuit of car load and the car body, a three-end capacitance circuit that is constituted by three electric capacity is installed, three electric capacity are the star-like connection of triangle in three-end capacitance circuit, become the electric capacity of the star-like connection of triangle to give the motor vehicle release electrostatic by three.Wherein, three electric capacity in the three-end capacitance circuit have an end terminal of a capacitor C 1 to receive on the positive bus-bar of main circuit, and an end terminal of another capacitor C 2 is received on the negative inlet highway of main circuit, and an end terminal of the 3rd capacitor C 3 is received on the car body; The other end terminal of capacitor C 1, capacitor C 2 and capacitor C 3 is that triangle is star-like to link together, and constitutes the star-like connection of triangle.Set up static from the passage of car body by the three terminal capacitor of these three star-like connections of triangle, avoided these static to discharge by the weak link (as various circuit boards) of electric component to electrical network release.This three terminal capacitor adopts wye connection, not only reaches the purpose of release electrostatic, does not also destroy whole insulation property, and with low cost, and highly versatile is easy to realize, and is obvious by the verification experimental verification effect, reliable and stable.

Specific practice is exactly between between the main circuit of car load and the car body three-end capacitance circuit (seeing accompanying drawing 2) to be installed, two terminals of wherein two electric capacity of three terminal capacitor are received respectively on the bus of positive and negative input of main circuit, a terminal of another one electric capacity is received on the car body.Make this three terminal capacitor set up static, avoid these static to discharge by the weak link (as various circuit boards) of electric component from the passage of car body to electrical network release.

Accompanying drawing 3 has provided a kind of concrete syndeton schematic diagram of the present invention, from accompanying drawing as can be seen the present invention be a kind of motor vehicle static release device, comprise that car body 5, main circuit positive input bus 6 and main circuit bear inlet highway 4, its characteristics are, are connected to one by three star-like three-end capacitance circuit that are connected 7 of one-tenth triangle at the negative inlet highway 4 of car body 5, main circuit positive input bus 6 and main circuit; Described three-end capacitance circuit 7 is made up of three electric capacity, is respectively first electric capacity 1, second

electric capacity

2 and 3, three electric capacity of the 3rd electric capacity and forms the star-like connection method of triangle (seeing accompanying drawing 1).Wherein, an end of first electric capacity 1 in three electric capacity is realized being electrically connected by lead 8 with the positive input bus 6 of main circuit; One end of second electric capacity 2 is realized being electrically connected by lead 9 with the negative inlet highway 4 of main circuit; One end of the 3rd electric capacity 3 and car body 5 are realized being electrically connected by lead 10, and the other end of three electric capacity becomes each other that triangle is star-like to link together.

Claims

1, a kind of motor vehicle electrostatic release method, it is characterized in that: adopt the method for three terminal capacitor to give the motor vehicle release electrostatic, between between the main circuit of car load and the car body, a three-end capacitance circuit that is constituted by three electric capacity is installed, three electric capacity are the star-like connection of triangle in three-end capacitance circuit, become the electric capacity of the star-like connection of triangle to give the motor vehicle release electrostatic by three.

2, motor vehicle electrostatic release method as claimed in claim 1, it is characterized in that: three electric capacity in the described three-end capacitance circuit, there is an end terminal of a capacitor C 1 to receive on the positive bus-bar of main circuit, one end terminal of another capacitor C 2 is received on the negative inlet highway of main circuit, and an end terminal of the 3rd capacitor C 3 is received on the car body; The other end terminal of capacitor C 1, capacitor C 2 and capacitor C 3 is that triangle is star-like to link together, and constitutes the star-like connection of triangle.

3, a kind of motor vehicle static release device, comprise that car body, main circuit positive input bus and main circuit bear inlet highway, it is characterized in that: be connected to one at the negative inlet highway of car body, main circuit positive input bus and main circuit and become the star-like three-end capacitance circuit that are connected of triangle by three.

4, motor vehicle static release device as claimed in claim 3 is characterized in that; Described three-end capacitance circuit is made up of three electric capacity, is respectively first electric capacity, second electric capacity and the 3rd electric capacity, and three electric capacity form the star-like connection method of triangle.

5, motor vehicle static release device as claimed in claim 3 is characterized in that; One end of first electric capacity in described three electric capacity is realized being electrically connected by lead with the positive input bus of main circuit; One end of second electric capacity is realized being electrically connected by lead with the negative inlet highway of main circuit; One end of the 3rd electric capacity and car body are realized being electrically connected by lead, and the other end of three electric capacity becomes each other that triangle is star-like to link together.