Unlock instant, AI-driven research and patent intelligence for your innovation.

Multi-split air conditioner

An air conditioner, drag multi-type technology, applied in the field of one drag multi-type air conditioner, can solve the problems of complex power supply circuit, complicated wiring, easy to be affected by external noise, etc., achieve simplification of circuit structure, reduce volume, and the effect of wiring simplification

Inactive Publication Date: 2008-01-23
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0025] As mentioned above, the power supply of the existing one-to-multi-type air conditioner is a large-capacity 3-phase AC power supply. Therefore, in order to prevent the noise of the large-capacity 3-phase AC power supply from affecting the control assembly of the outdoor unit compressor, the power supply of the control assembly must be connected to the frequency conversion. The power supply section 19 of the driver 18 is isolated from each other, which requires the use of a separate module or board-mounted power isolation circuit, but since multiple additional separate power supplies (for example, four 15V power supplies) for driving the variable frequency driver 18 are also required, therefore Power circuits can get very complex
[0026] In addition, since the general-purpose inverter 16 is installed on the one-to-multi-type air conditioner, its wiring becomes extremely complicated
[0027] In a word, electrolytic capacitor 15, electromagnetic switch 13, reactor 12, fan drive module 40, variable frequency drive 18, power supply unit are installed in the control box 30 of the control assembly of the outdoor unit compressor of existing one dragging multi-type air conditioner 19. The controller 20, the sensor 21, the noise filter 11, the frequency converter 16, the rectifier circuit 14, the fan drive module 40 and the main control module 50 have many components, so the wiring between the components becomes very complicated and easy Affected by external noise

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multi-split air conditioner
  • Multi-split air conditioner
  • Multi-split air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Fig. 4 is a schematic structural diagram of the outdoor unit control box 32 of the one-drag multi-type air conditioner of the present invention. As shown in Figure 4, electrolytic capacitor 15, electromagnetic switch 13 and reactor 12 are installed on the top of the interior space of the outdoor unit control box 32 of the present invention one drags multi-type air conditioner; There is an outdoor unit compressor control module, a noise filter 11 , a fan drive module 40 and a main control module 50 composed of an intelligent function module 60 , a controller 20 and a sensor 19 .

[0060] The layout of the components installed in the control box 32 shown in FIG. 4 is substantially the same as that of the control box 32 shown in FIG. 3 , and there is no need to modify the installation and wiring of the frequency converter 16 and rectifier circuit 14 . The intelligent function module 60 is described below with reference to Fig. 5

[0061] FIG. 5 is a structural block diagr...

Embodiment 2

[0068] Fig. 6 is a structural block diagram of the control module of the outdoor unit compressor in Embodiment 2 of the one-drag multi-type air conditioner of the present invention.

[0069] As shown in Figure 6, the control module of the outdoor unit compressor of the one-drag multi-type air conditioner of the present invention comprises: provide the 3-phase AC terminals R, S, T of the 3-phase AC grid; the rectification circuit 14a for 3-phase AC ; used to detect the voltage dividing resistors Ra, Rb of the output voltage of the rectifier circuit 14a; convert the rectified DC voltage into a 3-phase AC voltage according to the PWM signal, and deliver the 3-phase AC voltage to the frequency converter 16a of the motor 17; Generate a PWM signal, and use the PWM signal to control the variable frequency drive 18a of the operating state of the frequency converter 16a; connect with the voltage dividing resistor Ra, Rb, read a part of the rectified DC voltage, and compensate the voltag...

Embodiment 3

[0095] Fig. 8 is a structural block diagram of the control module of the outdoor unit compressor of Embodiment 3 of the one-drag multi-type air conditioner of the present invention. Compared with the control module of the outdoor unit compressor shown in FIG. 6, the control module of the outdoor unit compressor shown in FIG. It can be set on the control module of the outdoor unit compressor.

[0096] As shown in Fig. 8, the described controller 20 includes: obtaining power (such as 5V) from a power supply part (not shown in the figure), and performing the above-mentioned voltage reading operation, signal compensation operation, starting and running of the motor M The central processing unit (CPU) 20a that substantially controls the variation of the frequency; the insulating DC converter 71 that receives the CPU power and outputs a driving power of a certain size; The drive power supply, and connected with the voltage divider resistors Ra, Rb to read the divided DC voltage, th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a one-drive-more air conditioner, which comprises a plurality of indoor units and one outdoor unit that is connected with each indoor unit. The invention is characterized in that, the outdoor unit is provided with a control box that comprises a compressor-controlling module for driving the motor of the compressor; a fan-driving module controlling the fan of the outdoor unit; a noise filtering module for filtering the noise of the 3-phase power supply; and a main controlling module that controls the communication with each indoor unit and controls above modules. The compressor-controlling module comprises an intelligent functional module. The benefits with the invention are: the controlling modules of the compressor of the outdoor unit are modular, so that the setting and the wiring of them are simplified, and the power isolation is achieved in the modules, and the size, cost and noise are reduced.

Description

technical field [0001] The invention relates to an air conditioner, in particular to a one-drag multi-type air conditioner. Background technique [0002] Generally speaking, an air conditioner is a household appliance used to adjust indoor temperature and / or purify indoor air. Large buildings with multiple independent indoor spaces generally use one-drag multi-type air conditioners, which generally include: a plurality of indoor units respectively arranged in independent indoor spaces and a The outdoor unit to which each indoor unit is connected. [0003] Fig. 1 is the structural block diagram of existing common one dragging multi-type air conditioner. As shown in Figure 1, the existing common one-to-multi-type air conditioner includes: a plurality of indoor units 1a, 1b, 1c and an outdoor unit 1; 2 is connected to outdoor unit 1. [0004] Generally, the indoor units 1a, 1b, and 1c are respectively installed indoors, while the outdoor unit 1 is installed outdoors (for ex...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F24F11/00
Inventor 丘必宁张虎龙洪暎昊
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD