CN201074607Y

CN201074607Y - Fan control structure

Info

Publication number: CN201074607Y
Application number: CNU2007201526787U
Authority: CN
Inventors: 陈琝蕙
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-07-13
Filing date: 2007-07-13
Publication date: 2008-06-18
Anticipated expiration: 2017-07-13

Abstract

The utility model provides an electric fan controlling structure, wherein the electric fan mainly comprises a motor driving circuit, the motor driving circuit is connected with an electric fan motor, the motor driving circuit is connected with a power supply circuit, a controller is connected with the motor driving circuit, and a step-less speed change device is connected with the controller. Through the utility model, the magnitude of current which is output by the motor driving circuit can be changed through the controller and through using the operations of the step-less speed change device, then the electric fan motor is controlled by different magnitude of current, rotary speed can be changed fast or slowly, speed wind of the electric fan can also be regulated, thereby users can regulate the electric fan blowing wind speed at will and in step-less type without limitations, and the practical value is increased on overall applying operation.

Description

A kind of fan control structure

Technical field

The utility model is about a kind of fan control structure, but especially about a kind of slewing rate of non-section type control fan motor, and then reach the fan control structure of adjusting this fan wind speed power.

Background technique

In recent years because the influence of greenhouse effect, cause global temperature to raise year by year, every summer, the weather instant heating must make us and can't stand, at some comparatively in the hot area country, surpass the above high temperature of 30 degree often as seen, let alone at some and be positioned at the area of tropical climate, and along with the intensification of greenhouse effect influences, the situation of this kind hot climate gets over seriously especially, even also often allows winter people Re De can't stand, therefore, of all kindsly can allow the common people feel the comparatively heat radiation of cool and comfortable, the cooling articles for use, one of article of indispensability in the common people's daily life of can saying so.

Wherein, with regard to various common fans, this fan all is to utilize motor as power source, when desire is adjusted this fan motor rotating speed, then by switch, knob on switching or the rotation electric fan, to change different input resistance, the electric current that order inputs to this fan motor changes, thereby change the rotating speed of this fan motor, the wind-force that this fan is sent becomes big or diminishes.

Yet, though can utilizing switching or rotating switch, knob to reach by the user, the said fans structure changes the Expected Results that fan is sent the wind-force size, but also in using, its actual enforcement finds, the different input resistance that switch, knob changed on this fan utilization switching or the rotation electric fan, its resistance value is all fixing several sections, can't arbitrarily change, make the rotating speed of this fan motor limit to some extent, related its wind speed that makes can't be liked any adjustment with the user, causes the inconvenience in the use.

So in view of this creator adheres to for many years the abundant of these relevant industries and designs and develops and the actual fabrication experience, studied improvement again at existing structure and disappearance, provide a kind of fan control structure, in the hope of reaching the purpose of better practical value.

The model utility content

In view of the above-mentioned problems in the prior art, the utility model provides a kind of fan control structure.By the utility model, can allow the user adjust the wind speed size that fan blows out arbitrarily, unrestricted.

The purpose of this utility model is to provide a kind of fan control structure, this fan mainly includes: motor drive circuit, and described motor drive circuit is connected with fan motor, be connected with power circuit in described motor drive circuit, and be connected with controller in described motor drive circuit, be connected with continuously variable transmission device in described controller again.

The beneficial effects of the utility model are, be provided with a continuously variable transmission device at this fan, utilize the operation of this continuously variable transmission device can change the size of motor drive circuit output current by controller, and then make fan motor be subjected to the control of different magnitude of current sizes, its rotating speed is accelerated or slack-off, the wind speed of related adjustment fan; Thus, can allow any non-section type of user adjust the wind speed size that this fan blows out, unrestricted, and more increase use value its whole execution in the making.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, does not constitute qualification of the present utility model.In the accompanying drawings:

Fig. 1 is a circuit block diagram of the present utility model;

Fig. 2 is a circuit diagram of the present utility model;

Fig. 3 is the view that is provided with of the present utility model.

The primary component symbol description:

1 motor drive circuit, 11 fan motors

2 power circuits, 3 controllers

4 continuously variable transmission devices, 41 adjustable resistances

Embodiment

For technology contents that the utility model is used, creation purpose and the effect that reaches thereof have more complete and clearly express, existing under be described in detail, and see also accompanying drawing and the figure number that provides.

At first, see also Fig. 1 and Fig. 2, Fig. 1 is a circuit block diagram of the present utility model, and Fig. 2 is a circuit diagram of the present utility model.As shown in Figure 1 and Figure 2, fan of the present utility model mainly is to be provided with a motor drive circuit 1, and motor drive circuit 1 is connected with fan motor 11, be connected with power circuit 2 in motor drive circuit 1, and be connected with controller 3 in motor drive circuit 1, be connected with the continuously variable transmission device 4 that is constituted by adjustable resistance 41 in this controller 3 again.

Thus, please consult Fig. 3 more in the lump, Fig. 3 is the view that is provided with of the present utility model.As shown in Figure 3, can utilize and adjust this continuously variable transmission device 4, make to change the magnitude of current size that motor drive circuit 1 exports this fan motor 11 to by controller 3, the rotational velocity of this fan motor 11 of related change is fast or slow, and then reaches the wind speed purpose of adjusting fan.

In the present embodiment, each element among Fig. 3 can adopt following numerical value:

In the motor drive circuit 1, R5=47 ohm, R6=10K ohm, R7=10K ohm, R8=10K ohm, R9=10K ohm, R10=10K ohm, R11=10K ohm, R12=10K ohm, R13=10K ohm, R14=10K ohm, R15=10K ohm, RS=0.1 ohm;

Q1 adopts ER1002, Q2 to adopt TRIAC, Q3 to adopt C1815, Q4 to adopt A699, Q5 to adopt C1815, Q6 to adopt C1815, Q8 to adopt C2712;

D3 adopts SF33, D4 to adopt 1N4007; C4=104; V3=+15 volt, V4=+5 volt.

In the power circuit 2, V5=+5 volt, V6=+15 volt, V7=+155 volt; R1=100K ohm/1/2 watt, R2=47 ohm/1 watt, R4=470 ohm; C1=104/250 volt (250 volts of expression voltage proof values, other is similar), C2=680 μ F/25 volt, C3=10 μ F/25 volt; ZD1=15 volt/1 watt, ZD2=5 volt/1 watt; FUSE1:4A (A: ampere);

Z1 adopts 2201471M; D1, D2 adopt 1N4007.

Controller 3 adopts PIC16F684-A.

In the continuously variable transmission device 4, the V1=+5 volt; R17=1K ohm, R18=4.7K ohm, R19=4.7K ohm.

Other value: V8=+5 volt; The V2=+5 volt.

Above-mentioned value only is embodiment of the present utility model, also can adopt other numerical value.

By the above, the composition of this assembly and use implementation are as can be known, the utility model and existing structure are in comparison, because the utility model mainly is to be provided with a continuously variable transmission device at this fan, utilize the operation of this continuously variable transmission device can change that the fan motor rotating speed accelerates or slack-off, the wind speed of related adjustment fan allows any non-section type of user adjust the wind speed size that this fan blows out, unrestricted, and more increase use value its whole execution in the making.

In sum; the utility model embodiment really can reach desired using effect; above-described specific embodiment; the purpose of this utility model, technological scheme and beneficial effect are had been described in detail; institute is understood that; the above only is a specific embodiment of the utility model; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all; any modification of being made, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. fan control structure, it is characterized in that, this fan mainly includes: a motor drive circuit, and described motor drive circuit is connected with fan motor, be connected with power circuit in described motor drive circuit, and be connected with controller in described motor drive circuit, be connected with continuously variable transmission device in described controller again.

2. a kind of fan control structure as claimed in claim 1 is characterized in that described continuously variable transmission device is made of adjustable resistance.