CN201819347U

CN201819347U - Air speed control structure of ducted air conditioner

Info

Publication number: CN201819347U
Application number: CN2010205542969U
Authority: CN
Inventors: 周新生; 石永军
Original assignee: WUXI COM-SHIP ELECTRONIC INDUSTRIAL Co Ltd
Current assignee: WUXI COM-SHIP ELECTRONIC INDUSTRIAL Co Ltd
Priority date: 2010-10-09
Filing date: 2010-10-09
Publication date: 2011-05-04
Anticipated expiration: 2020-10-09

Abstract

The utility model provides an air speed control structure of a ducted air conditioner, which can effectively regulate the air speed of an air conditioner, has the advantages of low cost and low noise, reduces the heating of a motor and prolongs the service life of the motor. The air speed control structure of a ducted air conditioner is characterized by comprising a controller unit, wherein the controller unit is respectively connected with a sampler, a two-way valve control unit, a motor control unit, a display and acceptance template, a control unit and a communication module; the motor control unit comprises a motor speed isolation drive module and a speed control module; the controller unit is connected with the motor speed isolation drive module, the motor speed isolation drive module is connected with the speed control module, and the speed control module is connected with a motor; and the speed control module is formed by the uniform distribution of a single circuit, the single circuit comprises a bidirectional silicon-controlled switch, a capacitor and a current limiting resistor, the bidirectional silicon-controlled switch, the capacitor and the current limiting resistor are connected in series to form one single circuit, one end of the single circuit is connected with the motor, and the other end of the single circuit is a contact.

Description

A kind of wind speed control structure of air-cooled ducted air conditioner air-conditioning

Technical field

The utility model relates to the control technology field of air conditioner wind speed, is specially a kind of wind speed control structure of air-cooled ducted air conditioner air-conditioning.

Background technology

The wind speed control of existing air-cooled ducted air conditioner air-conditioning has two kinds of schemes:

First kind is adopted the BLDC motor, its control principle is seen Fig. 1: in order to control the BLDC motor, generally can adopt two power supply processing modules, one is the power module of controller, another is the power supply module of dc brushless motor, controller module generally adopts special-purpose control chip or MCU, and controller module also needs special-purpose drive circuit, generally is made of six MOSFET or IGBT.This shows that this scheme is controlled cost than higher;

Second kind is the PG motor, the extensive use in air-conditioner controller of this scheme, but adopt the PG motor, and the shortcoming of following two aspects is also arranged: the one,,, have than higher high-frequency noise owing to adopt the mode of copped wave to control; The 2nd, rotational speed regulation is limited in scope, because the electric capacity of motor coupling is fixed, he can only guarantee that motor moves in certain range of speeds, if too high, to would causing motor overheating, if low excessively, can cause again can cause blower fan to change not, and rotating speed being wayward because moment is not enough.

Summary of the invention

The utility model provides a kind of wind speed control structure of air-cooled ducted air conditioner air-conditioning, and it can effectively be regulated air conditioner wind speed, and cost is low, noise is low, it is few to make that the motor feels hot, prolongs electrical machinery life.

A kind of air-cooled ducted air conditioner air-conditioning control structure, its technical scheme is as follows:

It is characterized in that: it comprises controller unit, described controller unit connects sampler respectively, the two-port valve control module, motor control unit, show and accept template, control module, communication module, described motor control unit comprises motor speed isolation drive module, rotational speed control module, described controller unit connects described motor speed isolation drive module, described motor speed isolation drive module connects described rotational speed control module, described rotational speed control module connects motor, described rotational speed control module specifically forms by single channel is uniform, described single channel comprises bi-directional thyristor switch, electric capacity, current-limiting resistance, described bi-directional thyristor switch, electric capacity, the current-limiting resistance series connection forms a single channel, one end of single channel connects motor, and the other end of single channel is the contact.

It is further characterized in that: described two-port valve control module comprises two-port valve, two-port valve driver module, and described controller unit connects described two-port valve driver module, and described two-port valve driver module connects described two-port valve;

Return air temperature detects mouth in the described sampler difference junction chamber, indoor coil pipe detects mouth;

Described communication module is specially 485 communication modules;

Described two-port valve is specially the magnetic valve of three-wire system;

Described controller unit comprises single-chip microcomputer, and described single-chip microcomputer is specially and adopts Microchip PIC16F74 chip;

Described control module comprise remote controller and or line control machine.

After adopting the novel structure of this use, when needs are regulated temperature, by control module instruction is sent to controller unit, controller unit is according to sampler institute feedack, regulate the duty separately of two-port valve control module and motor control unit, thereby finish temperature control, wherein motor control unit is finished wind speed control by each single channel in the break-make rotational speed control module, it can effectively be regulated air conditioner wind speed, and cost is low, noise is low, it is few to make that the motor feels hot, prolongs electrical machinery life.

Description of drawings

Fig. 1 is the BLDC Electric Machine Control block diagram of the wind speed control of existing air-cooled ducted air conditioner air-conditioning;

Fig. 2 is a structural representation block diagram of the present utility model;

Fig. 3 is a rotational speed control module structural representation detail drawing of the present utility model.

The specific embodiment

See Fig. 2, Fig. 3, it comprises controller unit, controller unit comprises single-chip microcomputer, single-chip microcomputer adopts Microchip PIC16F74 chip, single-chip microcomputer connects sampler respectively, the two-port valve control module, motor control unit, show and accept template, control module, 485 communication modules, motor control unit comprises motor speed isolation drive module, rotational speed control module, single-chip microcomputer connects motor speed isolation drive module, motor speed isolation drive module connects rotational speed control module, rotational speed control module connects motor 1, rotational speed control module is specifically by three uniform forming of single channel, first single channel is by bi-directional thyristor switch S1, capacitor C 1, the current-limiting resistance R formation of connecting, second single channel is by bi-directional thyristor switch S2, capacitor C 2, the current-limiting resistance R formation of connecting, the 3rd single channel is by bi-directional thyristor switch S3, capacitor C 3, the current-limiting resistance R formation of connecting, one end of each single channel connects motor 1, and its other end is the contact; The two-port valve control module comprises two-port valve, two-port valve driver module, and controller unit connects the two-port valve driver module, and the two-port valve driver module connects two-port valve, and two-port valve is specially the magnetic valve of three-wire system; Respectively return air temperature detects mouthful sampler in the junction chamber, indoor coil pipe detects mouthful, control module comprise remote controller and or line control machine.

Its operation principle is as follows: remote controller or line control machine transfer commands to single-chip microcomputer, single-chip microcomputer is according to sampler institute feedack, in conjunction with accepted order, the duty separately of control two-port valve, motor, thereby finish temperature control, wherein motor control unit is by each single channel in the break-make rotational speed control module, wherein single channel can singlely be led to, also can a plurality ofly lead to, thereby finish wind speed control, the numerical value that is connected each electric capacity in the single channel is provided with according to circuit or motor needs, can finish the adjusting of many grades of wind speed; Wherein because motor operating voltage is an alternating current 220V, control circuit needs to isolate with it, so adopted motor speed isolation drive module to isolate.

Claims

1. the wind speed control structure of an air-cooled ducted air conditioner air-conditioning, it is characterized in that: it comprises controller unit, described controller unit connects sampler respectively, the two-port valve control module, motor control unit, show and accept template, control module, communication module, described motor control unit comprises motor speed isolation drive module, rotational speed control module, described controller unit connects described motor speed isolation drive module, described motor speed isolation drive module connects described rotational speed control module, described rotational speed control module connects motor, described rotational speed control module specifically forms by single channel is uniform, described single channel comprises bi-directional thyristor switch, electric capacity, current-limiting resistance, described bi-directional thyristor switch, electric capacity, the current-limiting resistance series connection forms a single channel, one end of single channel connects motor, and the other end of single channel is the contact.

2. the wind speed control structure of a kind of air-cooled ducted air conditioner air-conditioning according to claim 1, it is characterized in that: described two-port valve control module comprises two-port valve, two-port valve driver module, described controller unit connects described two-port valve driver module, and described two-port valve driver module connects described two-port valve.

3. the wind speed control structure of a kind of air-cooled ducted air conditioner air-conditioning according to claim 1 is characterized in that: return air temperature detects mouth in the described sampler difference junction chamber, indoor coil pipe detects mouth.

4. the wind speed control structure of a kind of air-cooled ducted air conditioner air-conditioning according to claim 1 is characterized in that: described communication module is specially 485 communication modules.

5. the wind speed control structure of a kind of air-cooled ducted air conditioner air-conditioning according to claim 1 and 2 is characterized in that: described two-port valve is specially the magnetic valve of three-wire system.

6. the wind speed control structure of a kind of air-cooled ducted air conditioner air-conditioning according to claim 1 is characterized in that: described controller unit comprises single-chip microcomputer, and described single-chip microcomputer is specially and adopts Microchip PIC16F74 chip.

7. the wind speed control structure of a kind of air-cooled ducted air conditioner air-conditioning according to claim 1 is characterized in that: described control module comprise remote controller and or line control machine.