CN202888043U

CN202888043U - Universal safety reversible switch for single-phase/three-phase motors

Info

Publication number: CN202888043U
Application number: CN 201220496919
Authority: CN
Inventors: 刁金香
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-29
Filing date: 2012-03-29
Publication date: 2013-04-17
Anticipated expiration: 2022-03-29

Abstract

A universal safety reversible switch for single-phase/three-phase motors is disclosed, comprising a housing, a dynamic contact body, a dynamic contact positioning device, and a static contact body. The dynamic contact body is fixed on a rotary shaft. A rotary handle is arranged at the upper end of the rotary shaft. Four static contact groups are arranged on the static contact body. Each of the static contact groups comprises three static contacts. Four dynamic contact groups are arranged on the dynamic contact body. Each of the dynamic contact groups comprises two dynamic contacts. When the reversible switch is in a stop position, none of the dynamic contacts or the static contacts is contacted. When the rotary handle is turned to rotate for a certain angle clockwise or anticlockwise, the dynamic contacts and the central static contact are contacted with the left-side static contact or the right-side static contact, and power is introduced through the central static contact. The certain static contacts at the two sides are contacted with wiring points of the motor. Based on the different positions of contact between the dynamic contacts and the static contacts as well as the short contact among the different static contacts, incoming and outgoing lines of the single-phase motor can be changed or the phase sequence of the three-phase motor can be changed, thereby realizing the forward and backward rotation of the single-phase/three-phase motors. The reversible switch is capable of allowing all electric wires entering into the single-phase motor to pass through.

Description

Single-phase, three phase electric machine universal safety two-direction switch

The application is to be 201220123142.3 for application number, and denomination of invention is divided an application for the utility application of " single-phase, three phase electric machine universal safety two-direction switch ", and the applying date of original application is on March 29th, 2012.

Technical field

The utility model relates to a kind of two-direction switch, especially a kind of single-phase, three phase electric machine universal safety two-direction switch.

Background technology

The patent No. is that 02261604.7 Chinese utility model patent discloses a kind of two-direction switch, the technical characterictic of at present commercially available HY2 type two-direction switch is that the disclosed technical characterictic of 02261604.7 Chinese utility model patent is identical with the patent No. basically, the shortcoming of this two-direction switch is, can not use as the monophase machine two-direction switch, because, although wherein enter a wire of motor by switch, do not disconnect, directly be connected with power supply; At present, agricultural monophase machine all uses Single-phase plug to insert single-phase socket and obtains power supply mostly, therefore that root does not directly enter the electric wire of motor through switch, have 50% may be phase line (being commonly called as live wire), even the neutral line (being commonly called as zero line), when neutral point excursion, also have certain voltage.Under this state, neither hot stand-by duty, neither running status (electric equipment generally has 4 kinds of states).As not understanding this switch wire connection, only two-direction switch is pulled the finger stop position, just remove to overhaul motor, very easily get an electric shock, motor is such as electric leakage, and equipment will be in the hole all the time.The mode of connection of this switch is not said common peasant household and carpenter, and the electrician also seldom has and understands this wiring fully, and in a word, a switch can not excise power supply reliably fully at stop position, just can not be called a switch.At present, there is above-mentioned shortcoming equally in commercially available KO3 type two-direction switch.Development along with the electrification of the countryside, therefore electric planer for wood working and the telpher etc. that hangs grain need the use of motor of rotating more and more wider, to the rush of demand of single-phase reversible switch,, designing a kind of single-phase, three phase electric machine universal safety two-direction switch, is the present technical issues that need to address.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of single-phase, three phase electric machine universal safety two-direction switch.

The first technical scheme that the utility model solves its technical problem is:

Single-phase, three phase electric machine universal safety two-direction switch, by shell, rotating shaft, top board, turning handle, moving bridge type contact base, moving bridge type contact, quiet bridge type contact base, quiet bridge type contact, the moving contact supporter, spring and termination form, described quiet bridge type contact is 6 pairs, described moving bridge type contact is 6, described top board also is 6, two-direction switch 6 moving bridge type contacts and 6 quiet bridge type contacts when stop position all disconnect, when pulling turning handle clockwise or being rotated counterclockwise certain angle, the moving bridge type contact quiet bridge type contact closure corresponding with it of part, and the moving bridge type contact quiet bridge type contact corresponding with it of another part still disconnects, cooperation by the inner short circuit of the quiet bridge type contact of the part of 6 pairs of quiet bridge type contacts realizes single-phase or three phase electric machine rotating with the line that changes two-phase induction motor or the phase sequence that changes three phase electric machine.

The second technical scheme that the utility model solves its technical problem is:

Single-phase, three phase electric machine universal safety two-direction switch, by shell, movable contact unit, moving contact positioner and fixed contact body form, movable contact unit is fixed in the rotating shaft, upper end in rotating shaft is provided with handle, be provided with 4 fixed contact groups at the fixed contact body, each fixed contact group has 3 contacts, be provided with 4 moving contact groups at movable contact unit, each moving contact group has 2 moving contacts, two-direction switch moving contact when stop position does not all contact with fixed contact, when pulling handle clockwise or being rotated counterclockwise certain angle, moving contact contacts with left side fixed contact or right side fixed contact with middle fixed contact, power supply is introduced by middle fixed contact, the part fixed contact of both sides connects the wiring point of motor, by the short circuit of moving contact from the different and different fixed contacts of fixed contact contact position, change the phase sequence of line or the change three phase electric machine of monophase machine, realize single-phase or three phase electric machine rotating.

The utility model compared with prior art, can make the institute's live wire that enters monophase machine all pass through switch, when switch is in stop position, all electric wires that enter monophase machine all are in off-state, avoided the generation of electric shock accidents, simultaneously, the utility model also can be used as the two-direction switch of three phase electric machine.

Description of drawings

Fig. 1 is the structural representation of the utility model the first embodiment;

Fig. 2 be among Fig. 1 A-A to profile (amplification);

Fig. 3 is the PHASE DISTRIBUTION figure (numbering of 6 top boards is respectively 2-1,2-2,2-3,2-4,2-5,2-6 from the bottom up) of 6 top boards among Fig. 1;

Fig. 4 is the winding diagram that the utility model the first embodiment is as the three phase electric machine two-direction switch;

Fig. 5 is the winding diagram that the utility model the first embodiment is as the monophase machine two-direction switch;

Fig. 6 is the structural representation (off-state) of the utility model the second embodiment;

Fig. 7 be among Fig. 6 B-B to profile (amplification-contact condition);

Fig. 8 is the winding diagram that the utility model the second embodiment is as the three phase electric machine two-direction switch;

Fig. 9 is the winding diagram that the utility model the second embodiment is as the monophase machine two-direction switch;

Embodiment

Shown in Fig. 1-5, single-phase, three phase electric machine universal safety two-direction switch, by shell 1, rotating shaft 3, top board 2, turning handle 4, moving bridge type contact base 6, moving bridge type contact 11, quiet bridge type contact base 5, quiet bridge type contact 10, moving contact supporter 9, spring 12 and termination 7 form, described quiet bridge type contact 10 is 6 pairs, described moving bridge type contact 11 is 6, described top board 2 also is 6, two-direction switch 6 moving bridge type contacts and 6 quiet bridge type contacts when stop position all disconnect, when pulling turning handle 4 clockwise or being rotated counterclockwise certain angle, the moving bridge type contact quiet bridge type contact closure corresponding with it of part, and the moving bridge type contact quiet bridge type contact corresponding with it of another part still disconnects, cooperation by the inner short circuit of the quiet bridge type contact of the part of 6 pairs of quiet bridge type contacts realizes single-phase or three phase electric machine rotating with the line that changes two-phase induction motor or the phase sequence that changes three phase electric machine.

Shown in Fig. 6-9, single-phase, three phase electric machine universal safety two-direction switch, by shell 20, movable contact unit 21, moving contact positioner 22 and fixed contact body 24 form, movable contact unit 21 is fixed in the rotating shaft 26, be provided with handle 23 in the upper end of rotating shaft 26, be provided with 4 fixed contact groups 25 at fixed contact body 24, each fixed contact group has 3 contacts, be provided with 4 moving contact groups at movable contact unit 21, each moving contact group has 2 moving contacts, two-direction switch moving contact when stop position does not all contact with fixed contact, when pulling handle 23 clockwise or being rotated counterclockwise certain angle, moving contact contacts with left side fixed contact or right side fixed contact with middle fixed contact, power supply is introduced by middle fixed contact, and the part fixed contact of both sides connects the wiring point of motor, by the short circuit of moving contact from the different and different fixed contacts of fixed contact contact position, change the phase sequence of line or the change three phase electric machine of monophase machine, realize single-phase or three phase electric machine rotating.

Claims

1. single-phase, three phase electric machine universal safety two-direction switch, by shell (20), movable contact unit (21), moving contact positioner (22) and fixed contact body (24) form, movable contact unit (21) is fixed in the rotating shaft (26), be provided with handle (23) in the upper end of rotating shaft (26), it is characterized in that: be provided with 4 fixed contact groups (25) at fixed contact body (24), each fixed contact group has 3 contacts, be provided with 4 moving contact groups at movable contact unit (21), each moving contact group has 2 moving contacts, two-direction switch moving contact when stop position does not all contact with fixed contact, when pulling handle (23) clockwise or being rotated counterclockwise certain angle, moving contact contacts with left side fixed contact or right side fixed contact with middle fixed contact, power supply is introduced by middle fixed contact, the part fixed contact of both sides connects the wiring point of motor, by the short circuit of moving contact from the different and different fixed contacts of fixed contact contact position, change the phase sequence of line or the change three phase electric machine of monophase machine, realize single-phase or three phase electric machine rotating.