CN201527094U

CN201527094U - Warm air blower

Info

Publication number: CN201527094U
Application number: CN2009202101783U
Authority: CN
Inventors: 周先义
Original assignee: Shanghai Niceda Electric Equipment Co Ltd
Current assignee: Shanghai Niceda Electric Equipment Co Ltd
Priority date: 2009-09-25
Filing date: 2009-09-25
Publication date: 2010-07-14
Anticipated expiration: 2019-09-25

Abstract

The utility model relates to a warm air blower. A casing is formed by a seat and an upper cover, an electric motor is mounted on one side of the seat and connected with a blade shaft, the lateral edge of the electric motor is provided with an anti-tilting switch support, an anti-tilting switch is fixed on the support, a heater support is arranged below the electric motor, and two sets of PTC heating elements with different output power are fixedly connected in parallel on the heater support and parallel to axis of the electric motor in arrangement. When the whole blower tilts, the anti-tilting switch disables connection of a circuit. The warm air blower has the advantages that the warm air blower has multiple electric protection functions, and is capable of instantly cutting off power when the electric motor and the PTC heaters occur in short circuit, or automatically turning off the power when the blower tilts by 30 degrees under action of external force, or stopping rotation of the electric motor and entering an irreversible protection state when foreign matters enter from an air inlet to block an impeller, or turning off power when limited working temperature of a winding reaches 95 DEG C, or entering the irreversible protection state when environment temperature rises and heating temperature of PTC heating fins reaches 250 DEG C.

Description

Warm-air drier

Technical field

The utility model relates to a kind of warm-air drier, especially a kind of warm-air drier of mesa structure.

Background technology

Most warm-air driers all are desk-top or wall types, and platform, the dual-purpose warm-air drier of wall are also arranged, and warm-air drier is easy to use, and is cheap.But the big power consumption that is power of the shortcoming of warm-air drier is many, it is slower to heat up.General two retainings that divide of the power of warm-air drier, peak power is that 1000W～1500W and an air-conditioning are similar.The mode of heating of warm-air drier is the indoor intensification of the mobile drive of hot air circulation, so programming rate is relatively slow, but each regional temperature differs less.

(1) based on the PTC ceramic heater of heat conduction, be characterized in battery lead plate (conducting electricity holds concurrently conducts heat) insulating barrier (every the double heat transfer of electricity) the heat conduction heat accumulation plate multilayer heat transfer structures such as (also adding of having have heat-conducting glue) by the surperficial installation of PTC heater element, the heat that the PTC element is sent passes on the heated object.

(2) carry out the various PTC pottery fan heaters that convection type conducts heat with formed hot blast, be characterized in that power output is big, and can regulate automatically and blow out wind-warm syndrome and quantity of heat given up.

(3) infrared-radiation heater, be characterized in that the heat that utilizes PTC element or heat-conducting plate surface to send rapidly excites its surperficial far ultrared paint of contact or far-infrared material to make it to give off infrared ray directly or indirectly, has just constituted PTC ceramic infrared radiation heater.

Ptc heater is pressed the design feature branch:

(1) common practical PTC ceramic heater, this appliances mainly contains: electric heating mosquito medicine mosquito repellant, hand warmer, drier, electric hot plate, electric iron, electric iron, electric heating paster, curly hair hair iron etc. be characterized in that power is little, but thermal efficiency height is very practical.

(2) automatic constant-temperature type ptc heater, this appliances mainly contains: minicrystal device thermostat, constant incubator, electronic heat-insulating bottle, incubator, thermos cup, hot plate, insulation cabinet, insulation table etc.Be characterized in automatic heat preserving, simple in structure, thermostatic characteristics good, the thermal efficiency is high, the environment for use temperature range is wide.

(3) hot blast ptc heater, this class hot blast ptc heater mainly contains: small-sized temperature wind warmer, hair dryer, house heater, dryer, drying cabinet, dryer, industrial stoving equipment etc. and be characterized in exporting big, the fast heat of hot blast power, safety, can regulate wind-warm syndrome and power consumption automatically.

But present desk-top warm-air drier major defect is to topple over easily, and circuit can not disconnect rapidly when toppling over, and brings potential safety hazard to the user, and in addition, hot-blast outlet is burnt easily usually over against table top.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of anti-warm-air drier of toppling over function that has.

The utility model solves the problems of the technologies described above the technical scheme of being taked and provides a kind of warm-air drier, constitute housing by base and loam cake, motor is installed in one side of base, motor is connected with blade shaft, side at motor is provided with the anti-dumping switch support, one anti-dumping switch is fixed on this support, the below of motor is provided with heater support, two groups of different PTC heating element heater parallel connections of power output are fixed on the heater support, and be arranged in parallel with motor shaft, the hour wheel that the heat that the PTC heating produces is rotated is sent, when the complete machine angle of inclination reaches 30 °, the anti-dumping switch disconnecting circuit plays the technique effect of toppling over outage.

On the basis of such scheme, described housing adopts flat centre of gravity structure, and support front end height makes air outlet form inclination angle upwards greater than the rear end height.The hot blast of the sending article that table top is placed of can not burning.

Specifically be of a size of: 230 * 215 * 80 millimeters, 29 millimeters of support front end height, 20 millimeters of terminal height, air outlet forms 4 ° positive pitch.

The utility model is because inner reasonably components and parts layout, the center of gravity configuration of science, and even difficult the lodging during run-off the straight, reaches 30 ° of circuit and disconnects.Safe and reliable.

In addition, the design of air outlet positive pitch can prevent the bright article of placing on the table top that decrease of the hot blast of sending.

Description of drawings

Fig. 1 is the utility model mounting structure schematic diagram (), and motor and dumping switch support are installed.

Fig. 2 is the utility model mounting structure schematic diagram (two), and dumping switch and fan blade are installed.

Fig. 3 is the utility model loam cake schematic diagram.

Fig. 4 unloads the upward view of lower cover for the utility model.

Fig. 5 is equipped with the upward view of housing for the utility model.

Fig. 6 is dim blower fan circuit theory diagrams.

The specific embodiment

Extremely shown in Figure 5 as Fig. 1, a kind of warm-air drier, constitute housing 1 by base 11 and loam cake 12, motor 2 is installed in one side of base 11, motor 2 is connected with 3 of fan blades, wherein, side at motor 2 is provided with anti-dumping switch support 4, one anti-dumping switch 5 is fixed on this anti-dumping switch support 4, the below of motor 2 is provided with 6, two groups of power outputs of heater support different PTC heater 7 heating element heater PTC1, PTC2 parallel connection and is fixed on the heater support 6, and be arranged in parallel with 2 in motor, when complete machine tilts, anti-dumping switch 5 (FD4) disconnecting circuit.

30 ° of the maximum inclination angles of present embodiment anti-dumping switch 5 (FD4) setting disconnecting circuit, when reaching 30 ° of angles of inclination, anti-dumping switch 5 (FD4) opens circuit.

The utility model housing adopts flat centre of gravity structure, and support front end height is greater than the rear end height, and air outlet forms inclination angle upwards, wherein, shell dimension is: 230 * 215 * 80 millimeters, and 29 millimeters of support front end height, 20 millimeters of terminal height, air outlet forms 4 ° positive pitch.

Shown in accompanying drawing 6 warm-air drier circuit theory diagrams, when motor overheating reaches 95 ℃, outage, selector switch 8 is selected PTC1 or PTC2 heating element heater.

Present embodiment input voltage 240V, 50Hz, power output 850W/1600W.Have following characteristics:

(1), HF601A is a sitting posture desktop warm-air drier, the unique appearance structure;

(2), HF601A has multiple electric protection function, the multiple heat defencive function, and the electric protection function embodiment is the instantaneous trip power supply when motor and ptc heater are short-circuited; In when, under external force 30 ° of inclinations taking place when, automatic powered-down.Heat protection function has: when foreign matter stops up wind wheel from air inlet, the motor stall when winding limit of working temperature rises to 95 °, is cut off the electricity supply.When hot-air mouth is stopped up by foreign matter, when hot blast flow backwards, this machine entered irreversible guard mode.Because of environment temperature rises, PTC heating plate heating-up temperature reaches 250 ℃, but this machine enters the reversal protection state.

Claims

1. warm-air drier, constitute housing by base and loam cake, motor is installed in one side of base, and motor is connected with blade shaft, it is characterized in that: the side at motor is provided with the anti-dumping switch support, one anti-dumping switch is fixed on this support, the below of motor is provided with heater support, and two groups of different PTC heating element heater parallel connections of power output are fixed on the heater support, and be arranged in parallel with motor shaft, when complete machine tilts, the anti-dumping switch disconnecting circuit.

2. warm-air drier according to claim 1 is characterized in that: described angle of inclination reaches 30 °, the anti-dumping switch disconnecting circuit.

3. warm-air drier according to claim 1 and 2 is characterized in that: described housing adopts flat centre of gravity structure, and support front end height is greater than the rear end height, and air outlet forms inclination angle upwards.

4. warm-air drier according to claim 3 is characterized in that: described shell dimension is: 230 * 215 * 80 millimeters, and 29 millimeters of support front end height, 20 millimeters of terminal height, air outlet forms 4 ° positive pitch.