CN2380861Y

CN2380861Y - Bathroom warm-air machine of automatically blowing-away waste-heat

Info

Publication number: CN2380861Y
Application number: CN 99221674
Authority: CN
Inventors: 滕为公; 邹洪威; 冯磊; 马莉莉; 张洪武
Original assignee: Energy Research Institute of Shandong Academy of Sciences
Current assignee: Energy Research Institute of Shandong Academy of Sciences
Priority date: 1999-07-19
Filing date: 1999-07-19
Publication date: 2000-05-31
Anticipated expiration: 2009-07-19

Abstract

The utility model relates to a warm air blower capable of automatically blowing away waste heat for a bathroom. The inside of a blower housing is provided with a heating assembly, a blower, an overtemperature relay T1; the top part of a blower housing is provided with a function switch; the surface of the heating assembly is provided with a normally open temperature controller T2 which is connected with a switch K1 of the function switch in parallel. When the temperature of the heating assembly is overhigh, the temperature controller T2 can still in a closed state to control the blower to be continuously in operation to blow away the waste heat to reach a safe temperature.

Description

Automatically dispel the bathroom warm-air drier of waste heat

The utility model relates to a kind of bathroom warm-air drier that dispels waste heat automatically, belongs to the technical field of household electrical appliance.

Existing bathroom warm-air drier; its shell protection class should reach the grade of splashproof type; heat generating component; blower fan and control assembly all are contained in the airtight good shell; blower fan rotates and impels the force air circulation; the user selects cold wind by function switch; warm braw and hot blast; when improper use; for example: by hot blast (or warm braw) when directly turn-offing; the waste heat of body internal heat generation assembly can not get the forced heat radiation of blower fan; air themperature can reach more than 100 ℃ in the shell; and keep considerable time---make the parts accelerated ageing of plastic, rubber system, influence the life-span of warm-air drier.

The purpose of this utility model is that a kind of bathroom warm-air drier that dispels waste heat automatically will be provided, it can overcome above-mentioned shortcoming, mainly in machine, install a temperature controller, it can the perception heat generating component surface temperature, by corresponding circuit, the control blower fan dispels its waste heat automatically, prevents that thus temperature is too high, make plastic, rubber unlikely aging, thereby prolonged the service life of warm-air drier.

The purpose of this utility model is to realize like this; a kind of bathroom warm-air drier that dispels waste heat automatically; comprise function switch (1), blower fan (4) and heat generating component (2); with overheat protective relay T1 (3), it is characterized in that on heat generating component (2) surface one K switch of often opening in temperature controller T2 (5) and the function switch (1) 1 being set is connected in parallel.

Fig. 1. the dim blower fan schematic diagram in bathroom

Fig. 2. bathroom warm-air drier circuit diagram

1, function switch 2, heat generating component

3, overheat protective relay T1 4, blower fan

5, often open temperature controller T2 6, casing

Now in conjunction with the accompanying drawings the structure that dispels the waste heat warm-air drier automatically is described in detail.

By Fig. 1, casing (6) is streamlined ABS plastic casing, a function switch (1) is equipped with at its top, be divided into cold wind, warm braw, three gears of hot blast, heat generating component (2) is housed in the casing (6), this assembly is the PTC ceramic heating plate, heat generating component (2) right lateral surface is equipped with overtemperature relay T1 (3) and often opens temperature controller T2 (5), overtemperature relay T1 (3) is the dish-shaped temperature relay of 150 ℃ of normally-closed contacts, and often open temperature controller T2 (5) is that operating temperature is 55 ℃ a normally opened contact dish temperature relay, and the interior right part of casing (6) is installed centrifugal fan (4).

By Fig. 2, K switch 1-K2 and K3 form a total function switch (1), 1 liang of terminal contacts of K switch is connected in and often opens temperature controller T2 (5), each is connected K switch 2 and K3 with PTC2 with a heat generating component PTC1, after this two heat generating component (2) parallel connection, be connected to overtemperature relay T1 (3) one ends, K switch 2, K3 and blower fan M (4) one ends are connected to K switch 1 one ends jointly, blower fan (4) other end is connected in an end of capacitor C 1 again, the other end of T1, the other end of blower fan (4) the 3rd end and capacitor C 1 is connected to an end of 220V power supply again, and the other end of this power supply and K switch 1 and Chang Kai temperature controller T2 (5) join.

Selection by function switch (1), connect K switch 1, at this moment heat generating component PTC1 and PTC2 (2) all do not work, just selected the cold wind shelves,, at this moment had only PTC1 or the work of PTC2 heat generating component if connect K2 or K3 again, the warm braw shelves have just been selected, if K switch 2 and K3 all are switched on, at this moment two groups of heat generating component PTC1 and PTC2 work simultaneously, have just selected the hot blast shelves.

When heat generating component was overheated, overheat protective relay T1 (3) effect disconnected circuit, made heat generating component (2) etc. element is unlikely to be burnt out.

The K switch 1 of often driving temperature controller T2 (5) and functional switch (1) is in parallel, when this warm-air drier send warm braw, temperature rises to the operating temperature of often opening temperature controller (5), so temperature controller T2 closure, connect another circuit of fan (4) power supply, when the heat generating component (2) of warm-air drier is directly turn-offed by febrile state, the surface of heat generating component (2) still keeps high temperature, often open temperature controller T2 (5) and still be in closure state, control blower fan (4) continues operation, dispel waste heat to safe temperature, often open the power supply circuits of temperature controller T2 (5) automatic disconnection blower fan (4).

Compared with prior art, the bathroom warm-air drier that dispels waste heat automatically has following advantage: the utility model is simple in structure, does not need to increase many electronic components, dispels waste heat in the casing automatically and reach, and has avoided plastics, rubber parts to wear out, and has prolonged service life.

The utility model function switch adopts dials the segmentation rotary switch; heat generating component adopts the PTC ceramic heating plate; 150 ℃ of normally-closed contacts dish temperature relays are adopted in overtemperature protection-relay, and often opening temperature controller, to adopt operating temperature be 55 ℃ normally opened contact temperature relay.

Claims

A kind of bathroom warm-air drier that dispels waste heat automatically; comprise function switch (1), blower fan (4) and heat generating component (2); with overheat protective relay T1 (3), it is characterized in that on heat generating component (2) surface one K switch of often opening in temperature controller T2 (5) and the function switch (1) 1 being set is connected in parallel.