CN2160986Y - Multi-channel timer for household electrical appliances - Google Patents

Abstract

The utility model relates to a multi-channel timer for household electrical appliances. Based on an original 'national standard' gear mechanical timer which is provided with only one cam, the utility model adds one or a plurality of cams, one or a plurality of corresponding pushing blocks and wiring pieces to form a two-channel or multi-channel timer, and accurate multi-channel timing can be achieved by calculating out the valley point angles of each cam according to the required different timing. The utility model is in particular suitable for the two-channel timing of a dry washing machine, and has the advantages of simple structure, convenient manufacture and accurate and reliable timing.

Description

Multi-channel timer for household electrical appliances

The utility model relates to the household electrical appliance multi-path timer, particularly the drying/washing machine multi-path timer.

The timer of family expenses fan in the prior art, washing machine etc. can only be supplied the timing switching circuit operation that one group of power circuit has only a kind of setting, can not carry out the operation of multiple different timing simultaneously.

The purpose of this utility model is to provide the timer that can carry out multicircuit time in a timer simultaneously.

Well-known drying/washing machine was generally 2 hours carrying out the laundry time, was that blast-cold, hot blast are carried out in requirement simultaneously in preceding 112 minutes, stopped hot blast then, continued to blow a cold wind over 8 minutes, and 120 minutes so altogether, promptly two hours.Multi-path timer of the present invention is improved to form on the basis of the timer that present general on the market fan is used.

The utility model is implemented like this, it is the movement that adopts general 120 minutes gear mechanism timing structure timers, refill the timing cam of different timing and jacking block and the lug plate that adapts on the timing cam having only originally, the function of multicircuit time just can be carried out in the valley point of calculating the required cam of power on/off time that good each or a plurality of cam rotate a circle.Now preference of the present utility model is elaborated to the present invention in conjunction with the accompanying drawings, but do not limit scope of the present utility model.

Fig. 1 is the positive internal structure sketch of the utility model two road timers, and wherein 1 is overhead cam, the 2nd, following cam, the 3rd, timing movement, the 4th, fixed frame, the 5th, following jacking block, the 6th, last jacking block, the 7th, contact, the 8th, hot blast lug plate, the 9th, cold wind lug plate, the 11st, spring lug plate, the 12nd, lug plate support.

Fig. 2 is the vertical view of Fig. 1, and wherein 1 is overhead cam, the 3rd, timing movement, the 4th, fixed support, the 6th, last jacking block, the 8th, hot blast lug plate, the 10th, power supply wiring sheet, the 11st, spring lug plate, the 16, the 17th, contact.

Fig. 3 is the vertical view of overhead cam, and wherein 13 is peak dot limits.

Fig. 4 is the front view of overhead cam.

Fig. 5 is the vertical view of following cam, and wherein 14 is peak dot limits.

Fig. 6 is the front view of following cam.

Because drying/washing machine requires cold and hot ventilation in the time of 112 minutes, 8 minutes only logical cold wind then, finished one-period in totally 120 minutes, so the card of two cams all is divided into 300 °, and the stop anglec of rotation (valley point) of overhead cam is 100 °, sees Fig. 3, and the stop anglec of rotation of cam is 120 ° down, the stop anglec of rotation of such two cams differs 20 °, and promptly two contact parting time differences are 8 minutes.

Operation principle is to adopt " GB " gear mechanism timing in 120 minutes structure timer movement, so its movement internal structure is omitted, when the timing button is gone to the service position, the movement inner spring is just gone up full the white silk, and two cams (1 up and down, 2) after the rotation necessarily, two cams (1,2) peak dot limit (13,14) withstand jacking block (5,6), be connected in jacking block (5, the spring contact (15) of the power supply wiring sheet (10) 6), the spring leaf of this contact follow distortion moves to and heat, cold line lug plate (8,9) contact (16,17) touch mutually, realized the energising effect, continue since the clockwork spring power output apart from making the work of timing gear mechanism, when timing in the time of so far 12 minutes, overhead cam (1) goes to the valley point, with respect to last jacking block displacement is zero, this moment is because the resilience of spring leaf, hot blast wiring contact and power supply wiring contact are broken away from, thereby realize that hot blast quits work, this timer works on, again after 8 minutes, then arrive the position, valley point of cam down, same reason cold wind quits work, and finishes whole process.

Advantage of the present utility model:

1, simple in structure, increase a cam at original movement, design the required stop anglec of rotation of time difference of two cams, just can carry out two journeys regularly, if will carry out regularly then can increasing cam more than two, design its stop anglec of rotation and just can finish.

2, easy and simple to handle, accurately and reliably.

Claims (2)

1, a kind of household electrical appliance multi-path timer, it is made up of gear movement and a cam, it is characterized in that:

(1) increase one or more cams,

(2) increase one or more jacking blocks and lug plate adaptably,

2, according to the multi-path timer of claim 1, it is characterized in that:

The valley point angle of overhead cam is 100 °, and the valley point of following cam is 120 °.

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