CN2475127Y - Power phase-change switch - Google Patents

Abstract

A power supply commutation switch belongs to a electric transfer device, comprising a central shaft (12), a ratchet wheel (6), a static contact A <1> (7), a static contact A <2> (14), a static contact B <1> (13), a static contact B <2> (5), a moving contact (4, 15), a shell (1), and a drawing wheel (8). The difference is that the central shaft (12) is connected in parallel with two ratchet wheels (6) which can run in phase, a drawing wheel (8) is provided between two ratchet wheels, and each ratchet wheel (6) has a static contact and a moving contact thereon, the tooth number of the ratchet wheel (6) is 2n, and n is an even number greater than 2. Due to the two ratchet wheels running in-phase, the phase line two stage converter can be played. The utility model has simple operation, safe and reliable, and is especially suitable to be used for the power switch in family and hotel.

Description

The power supply phase-change switch

The utility model relates to a kind of phase inversion switch of electricity, particularly a kind of power supply phase-change switch that two ratchets are arranged.

At present, it is backguy, the dark formula of wall, guillotine type that the mains switch that China adopted is generally, these switch major parts all have been the effects that disconnects, as pulling switch, it has only a ratchet, six teeth are arranged on the ratchet, and movable contact spring is three, the supporting of putting into three teeth of ratchet respectively, non-conterminous mutually, draw a pull-down line, can only play a disconnected effect of opening, can not make two pole-changes of phase line of power, though being arranged now, the part commutation closes switch, but it just adopts guillotine type, uses trouble, and dangerous.

The purpose of this utility model is exactly will provide a kind of can make two pole-changes of power supply, power supply phase-change switch esy to use, safe and reliable.

The purpose of this utility model is achieved in that a kind of power supply phase-change switch, by central shaft (12), ratchet (6), static contact first ₁(7), first ₂(14), second ₁(13), second ₂(5), left and right moving contact (4), (15), shell (1), draw wheel (8) to form, it is characterized in that described central shaft (12) go up connect two side by side can synchronous operated ratchet (6), be connected between two ratchets (6) and draw wheel (8), each ratchet all has static contact and movable contact spring on (6), the tooth of ratchet (6) is 2n, and n is the even number greater than 2, but the best is eight teeth, can play common effect of cut-offfing power supply and commutation pass.

The utility model compared with prior art has the following advantages: because the utility model adopts two ratchets (6), and be synchronized with the movement, each ratchet all has static contact and movable contact spring on (6), and movable contact spring is two on each ratchet, by line, can play phase line two pole-changes; Be the dark formula switch of pulling switch and wall owing to adopting again, thus esy to use, safe and reliable.

Description of drawings:

Fig. 1 is the front view of an embodiment concrete structure of the utility model;

Fig. 2 is the end view of the utility model embodiment concrete structure:

1, shell 2, lug plate 3, supporting 4, left movable contact spring 5, static contact second ₂6, ratchet 7, static contact first ₁8, draw wheel 9, stay cord 10, extension spring 11, stage clip 12, central shaft 13, static contact second ₁14, static contact first ₂15, right movable contact spring

Embodiment:

Utilize phenolic plastics to make shell (1), shell (1) is divided into cap and base, and shell (1) is of a size of 68 * 50 * 36mm after fastening ³, the external dimensions of cap and base all is 68 * 50 * 19mm ³Four angular bits at cap have the screw hole that joins with base, the center of base be provided with one long be the semicolumn body opening of 17mm for the 30mm diameter, around it, be provided with many holes, left and right moving contact (4 with two ratchets (6), 15) and the supporting (3) be enclosed within respectively on the ratchet (6), the external diameter of ratchet (6) is 15mm, be 8 teeth, movable contact spring is 2 teeth, direction is opposite, to draw wheel (8) to be set on the ratchet on the left side again, stage clip (11) is enclosed between 2 ratchets (6), insert 2 ratchets (6) endoporus with central shaft (12), put in the semicolumn body opening of base, inserted end basin respectively from box lower end, the end with 2 screws, supporting (3) is torqued into the lug plate screw, lug plate has compressed supporting, this moment central shaft (12), ratchet (6), draw wheel (8) in the end of shell box, to locate, in the lower end of end box, put a guide card with 2 screws, passed end box from the bottom of end box, the static contact first ₁Top nut is turned round in 2 (7,14), makes the static contact first _1,2(7,14) compress the location by the wiring compressing tablet, 4 screws are divided awkwardly to 4 lug plates (2) again, and wiring when being used for doing mutually is soldered to two ends respectively and the static contact first with a lead ₁(7) reach and static contact second on the conducting strip that communicates ₁(13) on the conducting strip that communicates, the static contact first ₁(7) and second ₁(13) communicate, with a lead two ends are soldered to respectively and the static contact first again ₂(14) reach and static contact second on the conducting strip that communicates ₂(5) on the conducting strip that communicates, at this moment, the static contact first ₂(14), second ₂(5) communicate, extension spring two ends are suspended to respectively on the spring-hanging column that draws wheel hole and end box, stay cord is passed draw the wheel hole, with screw shell lid and bottom box is fixed on one again, during use, establish static contact second this moment ₂(5) connect positive source, static contact second ₁(13) connect power cathode, 2 lug plates that compress supporting connect output line respectively, static contact second ₂(5) during the left movable contact spring of contact, the output line that lug plate connect that then compresses left side supporting is for anodal, meanwhile, and static contact second ₁(13) contact right movable contact spring, the output line that lug plate connect that compresses right supporting is a negative pole, wheel is once drawn in pulling, ratchet (6) drives movable contact spring and rotates 45 ℃, the movable contact spring disengaging contacts with static contact, does not all have electricity with this two output line, and wheel is once drawn in pulling again, ratchet (6) drives movable contact spring and rotates 45 ℃ again, at this moment left movable contact spring and static contact first ₁(7) contact, because the static contact first ₁(7) with static contact second ₁(13) communicating, is negative pole so compress the output line that lug plate connect of left side supporting, meanwhile the static contact first ₂(14) contact with right movable contact spring (15), because the static contact first ₂(14) with static contact second ₂(5) communicating, is anodal so compress the output line that lug plate connect of right supporting, spurs drop-down a wheel (8) again, at this moment end-of-job.

Claims (2)

1, a kind of power supply phase-change switch is by central shaft (12), ratchet (6), static contact first ₁(7), first ₂(14), second ₁(13), second ₂(5), left and right moving contact (4), (15), shell (1), draw wheel (8) to form, it is characterized in that described central shaft (12) go up connect two side by side can synchronous operated ratchet (6), be connected between two ratchets (6) and draw wheel (8), each ratchet all has static contact and movable contact spring on (6), the tooth of ratchet (6) is 2n, and n is the even number greater than 2.

2, power supply phase-change switch according to claim 1, the tooth that it is characterized in that described ratchet (6) is eight.

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