CN201238007Y - Timer of laundry drier - Google Patents

Abstract

The utility model relates to a dryer timer, which mainly comprises an electric motor, a cam, a main shaft, leaf springs, and the like; wherein, the leaf springs can be contacted with or separated from each other through contacts; one of the leaf springs is bent in the shape of a V to be contacted with the cam; and the contact and separation time between the leaf springs is controlled by setting the shape of the cam. The working interval of a dryer, which corresponds to the parts A and B of the cam, is a stage of ''stop to hot wind'', the parts A and B of the cam are designed into a S-shaped notch, so that the contact or separation between the leaf springs can be implemented at the parts A and B, and stop cannot occur, so that the use safety of an user can be ensured.

Description

A clothes dryer timer

technical field

The utility model relates to a clothes dryer accessory, mainly a clothes dryer timer.

Background technique

热风冷风

停。The existing dryer timer uses the motor as the driving force, the gear system decelerates, the cam system controls the connection and disconnection of the contacts, and the dryer completes the conversion control of cold air and hot air (heating) within the specified time limit, thereby starting For the purpose of drying clothes. The blowing time limit of the existing clothes dryer within one cycle is: cold air stop

hot air cold wind

stop.

热风”A1、B1阶段时，有可能发生定时器停摆状况，导致干衣机不停地进行加热工作，从而有发生危险的可能性。The disadvantage of this structure is (as shown in Figure 1): when the user toggles the switch to "stop

During the "hot air" A1 and B1 stages, the timer may be shut down, causing the dryer to continue to heat up, which may cause danger.

Contents of the invention

The main purpose of the utility model is to provide a new cam structure to change the timing of the timer, so as to develop a dryer timer that can improve the safety performance.

The technical scheme of this dryer timer is: mainly comprising a motor, a cam, a main shaft on the cam, a contact reed in contact with the surface of the cam and a reed associated with the contact reed, characterized in that: , A and B, which represent the area from the stop to the beginning of the hot air, are S-shaped notches. Parts A and B are designed to be similar to an "S" shape, which can ensure the contact or disconnection between the contact reed and the other two reeds at parts A and B, without shutting down and ensuring the safety of users.

Preferably, the contact reed and the end of the reed have contacts, and the contact reed is provided with a V-shaped bend, and the V-shaped bend is in contact with the surface of the cam.

The beneficial effect of the utility model is that: when the reed group reaches between A and B on the surface of the cam, if the support force provided by the cam to the reed is greater than the resistance, the timer runs counterclockwise and works normally; or the support force is less than the resistance, The reed group cannot be connected, and the timer does not work, which will not cause a shutdown phenomenon and will not cause a dangerous situation.

Description of drawings

Accompanying drawing 1 is the structure diagram of prior art dryer timer.

Accompanying drawing 2 is a kind of structural representation of the utility model.

Detailed ways

The utility model will be further described below in conjunction with examples of implementation.

The clothes dryer timer shown in Figure 2 mainly includes a motor, a cam 1, a main shaft 2, a reed a, a reed b, a contact reed c, the contact reed c is in contact with the cam 1, and the connection between the reed and the reed is The reeds are connected or disconnected through the contacts, and the reeds are electrically connected with the electrical appliances. There is a V-shaped bend (protrusion) in the middle of the contact reed c, and the bottom is in contact with the surface of the cam 1, and the on and off time between the reeds is controlled by setting the shape of the cam. A main shaft 2 is provided on the cam 1 to be connected with the power switch of the clothes dryer. The user controls the working process of the dryer by turning the power switch. There is a relatively smooth curve between A and B of the current timer cam (see Figure 1). When the user rotates the power switch to make the V-shaped bend of the contact reed c reach between A and B, the part A is relatively smooth. , the cam can support the reed set. The reeds a, b, c are in contact, the timer motor is energized and runs counterclockwise. But because the motor rotates counterclockwise, the reed set is subjected to resistance during the crawling process of sections A and B. When the supporting force and resistance of the cam to the reed are equal, the reed a, b, and c will be in a certain position of the A and B sections when they are connected to each other, causing the timer to stop. Sections A and B correspond to the "stop → hot air" process of the dryer. If the timer stops for a long time, the dryer will continue to send hot air, which will cause danger.

And the utility model is designed into a similar " S " shape as figure (2) between A, B, and A portion is relatively sunken, and B portion protrudes relatively. Therefore, when the reed group reaches between A and B, if the support force of the cam to the reed is greater than the resistance, the timer will run counterclockwise and work normally; or the support force is less than the resistance, so that the reeds a, b, and c cannot Connected, the timer does not work, will not cause a shutdown phenomenon, and will not appear in a dangerous situation.

Claims (2)

1. A clothes dryer timer having a motor, a cam (1) with a main shaft (2) on the cam, a contact reed (c) in contact with the surface of the cam and a reed associated with the contact reed (c) (a, b), it is characterized in that: on the surface of the cam (1), A and B, which represent the area from the stop to the beginning of the hot air, are S-shaped notches. 2. The clothes dryer timer according to claim 1, characterized in that: the contact reed (c) and the ends of the reed (a, b) have contacts, and the contact reed (c) is provided with a V The V-shaped bend is in contact with the surface of the cam (1).

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