CN111799110A

CN111799110A - Circuit control contactor of new energy electric vehicle

Info

Publication number: CN111799110A
Application number: CN202010667343.9A
Authority: CN
Inventors: 高建峰
Original assignee: Shandong University of Science and Technology
Current assignee: Shandong University of Science and Technology
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2020-10-20

Abstract

The invention discloses a circuit control contactor of a new energy electric vehicle, which comprises a switch box body, a sealing cover, an inner base, a first conductor piece, a first conductor contact, a second conductor piece, a conductor piece bracket, a spring, a cam rotating shaft and an operating rod, wherein the vacuumizing in the switch box body is used for preventing electric arcs from damaging the contacts, when the operating rod is pulled, the cam rotating shaft rotates along with the operating rod, the second conductor piece bounces upwards under the action of the spring to separate the first conductor contact from the second conductor contact and break the circuit, when the operating rod enables the farthest end of the cam rotating shaft to contact the second conductor piece, the first conductor contact is tightly contacted with the second conductor contact to play a role of a passage, compared with the prior art, the circuit control contactor adopts the vacuum sealed switch box body, can effectively prevent electric sparks and prolong the service life, in addition, the cam rotating shaft is adopted to press the conductor contacts, the contact points are tightly contacted, the phenomenon of poor contact is prevented, and the device has popularization and application values.

Description

Circuit control contactor of new energy electric vehicle

Technical Field

The invention relates to an electric vehicle accessory, in particular to a new energy electric vehicle circuit control contactor.

Background

The new energy electric automobile comprises the following components: an electric drive and control system, a mechanical system such as a drive transmission, a working device for performing a predetermined task, and the like. The electric drive and control system is the core of an electric automobile and is the biggest difference from an internal combustion engine automobile. The electric driving and controlling system consists of driving motor, power source, speed regulating controller of motor, etc. Other devices of the electric vehicle are basically the same as those of the internal combustion engine vehicle. In the prior art, the circuit control contactor of the new energy electric vehicle is often high in voltage, electric sparks are generated on contacts of the switch, even the contacts of the switch are burnt, contact force is small, poor contact is caused, even burning is caused, and therefore an improvement space exists.

Disclosure of Invention

The invention aims to solve the problems and provide a circuit control contactor of a new energy electric vehicle.

The invention realizes the purpose through the following technical scheme:

the invention comprises a contactor shell, a sealing cover plate, an inner base, a first conductor sheet, a first conductor contact, a second conductor sheet, a conductor sheet bracket, a spring, a cam rotating shaft and an operating rod, wherein the sealing cover plate is connected with the contactor shell in a sealing way, the inside of the contactor shell is vacuumized, the inner base is arranged at the bottom in the contactor shell, the first conductor sheet is fixedly arranged on the inner base, one end of the first conductor sheet penetrates through the contactor shell to be positioned outside the contactor shell, the first conductor contact is welded on the first conductor sheet, the second conductor contact is welded on one end of the second conductor sheet and is positioned right above the first conductor contact, the conductor sheet bracket fixes the middle part of the second conductor sheet on the side wall of the contactor shell, and the other end of the second conductor sheet penetrates through the contactor shell to be positioned outside the contactor shell, the spring is located the middle section department that is close to the second conductor contact on interior base and the second conductor piece, the cam pivot with rotate between the lateral wall of contactor shell and be connected, just the cam pivot is located directly over the second conductor contact, the axis of rotation of cam pivot with action bars fixed connection.

Further, the contactor housing and the cam rotating shaft are insulators.

The invention has the beneficial effects that:

the invention relates to a circuit control contactor of a new energy electric vehicle, which adopts a vacuum sealed contactor shell to effectively prevent electric sparks and prolong the service life compared with the prior art.

Drawings

Fig. 1 is a schematic structural view of the present invention.

In the figure: 1-contactor shell, 2-sealing cover plate, 3-inner base, 4-first conductor sheet, 5-first conductor contact, 6-second conductor contact, 7-second conductor sheet, 8-conductor sheet bracket, 9-spring, 10-cam rotating shaft and 11-operating rod.

Detailed Description

The invention will be further described with reference to the accompanying drawings in which:

as shown in fig. 1: the invention comprises a contactor shell 1, a sealing cover plate 2, an inner base 3, a first conductor sheet 4, a first conductor contact 5, a second conductor contact 6, a second conductor sheet 7, a conductor sheet bracket 8, a spring 9, a cam rotating shaft 10 and an operating rod 11, wherein the sealing cover plate 2 is connected with the contactor shell 1 in a sealing way, the inside of the contactor shell 1 is vacuumized, the inner base 3 is arranged at the bottom in the contactor shell 1, the first conductor sheet 4 is fixedly arranged on the inner base 3, one end of the first conductor sheet 4 penetrates through the contactor shell 1 and is positioned outside the contactor shell 1, the first conductor contact 5 is welded on the first conductor sheet 4, the second conductor contact 6 is welded on one end of the second conductor sheet 7 and is positioned right above the first conductor contact 5, the conductor sheet bracket 8 fixes the middle part of the second conductor sheet 7 on the side wall of the contactor shell 1, and the other end of the second conductor piece 7 passes through the contactor shell 1 and is located outside the contactor shell 1, the spring 9 is located at the middle section of the inner base 3 and the second conductor piece 7 close to the second conductor contact 6, the cam rotating shaft 10 is rotationally connected with the side wall of the contactor shell 1, the cam rotating shaft 10 is located right above the second conductor contact 6, and the rotating shaft of the cam rotating shaft 10 is fixedly connected with the operating rod 11.

Further, the contactor housing and the cam rotating shaft are insulators.

The working principle of the invention is as follows:

the vacuum pumping in the contactor shell 1 is to prevent the arc from damaging the contact, when the operating lever 11 is pulled, the cam rotating shaft 10 rotates along with the cam rotating shaft, the second conductor sheet 7 is upwards bounced under the action of the spring 9, the first conductor contact 5 and the second conductor contact 6 are separated, the circuit is broken, when the operating lever 11 enables the farthest end of the cam rotating shaft 10 to contact the second conductor sheet 7, the first conductor contact 5 and the second conductor contact 6 are in close contact, the function of a passage is achieved, and poor contact is prevented.

The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a new forms of energy electric motor car circuit control contactor which characterized in that: the contactor comprises a contactor shell, a sealing cover plate, an inner base, a first conductor sheet, a first conductor contact, a second conductor sheet, a conductor sheet support, a spring, a cam rotating shaft and an operating rod, wherein the sealing cover plate is connected with the contactor shell in a sealing mode, the interior of the contactor shell is vacuumized, the inner base is arranged at the bottom in the contactor shell, the first conductor sheet is fixedly arranged on the inner base, one end of the first conductor sheet penetrates through the contactor shell and is located outside the contactor shell, the first conductor contact is welded on the first conductor sheet, the second conductor contact is welded on one end of the second conductor sheet and is located right above the first conductor contact, the middle of the second conductor sheet is fixed on the side wall of the contactor shell by the conductor sheet support, and the other end of the second conductor sheet penetrates through the contactor shell and is located outside the contactor shell, the spring is located the middle section department that is close to the second conductor contact on interior base and the second conductor piece, the cam pivot with rotate between the lateral wall of contactor shell and be connected, just the cam pivot is located directly over the second conductor contact, the axis of rotation of cam pivot with action bars fixed connection.

2. The new energy electric vehicle circuit control contactor according to claim 1, characterized in that: the contactor shell and the cam rotating shaft are insulators.