CN201265933Y - Remote control circuit of split air conditioner - Google Patents

Abstract

The utility model discloses a remote control circuit of split air conditioner, including the air conditioner host computer control circuit that contains the control power supply, air conditioner controller and compressor switch inside, its technical characterstic is still including remote control module and central controller, remote control module is including remote temperature controller and remote time controller, remote temperature controller can be according to the indoor temperature that room temperature sensor fed back and cut off or switch on the compressor switch under the control of central controller and realize the remote temperature control; the remote time controller can cut off or switch on the electric connection between the control power supply and the air conditioner controller under the control of the central controller according to the working state of the air conditioner fed back by the air conditioner controller to realize remote time control. The central controller is connected with all the remote control modules in a bus mode, and each air conditioner is remotely controlled and monitored through the remote control modules. The utility model has the advantages that can make the air conditioner energy saving.

Description

A remote control circuit for a split air conditioner

[technical field]

The utility model relates to a remote control circuit of a split air conditioner, which is developed for school classrooms, student dormitories, offices, hotels, inns, hospitals and the like.

[Background technique]

With the rapid development of my country's economy and society, air conditioners have been widely used in public buildings and residential buildings. While improving people's production and living conditions, they also consume a lot of electric energy. In order to thoroughly implement the scientific outlook on development, further implement the spirit of the "Decision of the State Council on Strengthening Energy Conservation Work" (Guo Fa [2006] No. 28), promote the scientific use of air conditioners, save energy resources, reduce greenhouse gas emissions, and effectively protect the environment, with the approval of the State Council , and issued on June 1, 2007: "Notice of the General Office of the State Council on Strictly Implementing the Temperature Control Standards of Air-conditioning in Public Buildings" (Guo Ban Fa [2007] No. 42). However, split air conditioners are not uniformly controlled by the central pipe system like central air conditioners. Split-type air conditioners are currently controlled manually, so people often forget to turn off the air conditioner when they leave the room, which will waste a lot of electricity; Let it stop working, which also wastes a lot of power. Therefore, the current split-type air conditioner cannot really achieve the purpose of energy saving.

[utility model content]

The utility model overcomes the disadvantages of the above-mentioned technologies, and provides a remote control circuit of a split air conditioner for remote control of each air conditioner. The remote control circuit is applied to the split air conditioner, which can make the air conditioner achieve the effect of energy saving.

In order to achieve the above object, the utility model adopts the following technical solutions: a remote control circuit of a split air conditioner, including an air conditioner host control circuit with a control power supply, an air conditioner controller and a compressor switch inside, and is characterized in that it also includes :

A remote control module, which is arranged in the air conditioner host and electrically connected with the control circuit of the air conditioner host;

A central controller bus-connected with all remote control modules, which remotely controls and monitors each air conditioner through the remote control modules;

The remote control module includes:

The remote time period controller can cut off or connect the electrical connection between the control power supply and the air conditioner controller under the control of the central controller according to the air conditioner working status fed back by the air conditioner controller to realize remote time period control.

A remote control circuit for a split-type air conditioner as described above is characterized in that the compressor switch is a relay, one end of the switch of the relay is connected to the live line of the AC220V power supply, and the other end of the switch is connected to an input end of the compressor. The input terminal of the other end of the machine is connected to the neutral line of the AC220V power supply, and one end of the coil of the relay is connected to the air conditioner controller; the remote temperature controller is a relay, and the switch of the relay is connected to the other end of the coil of the compressor switch and the air conditioner controller between.

A remote control circuit for a split-type air conditioner as described above is characterized in that the control power supply is a rectifier transformer, and the two primary input terminals of the rectifier transformer are respectively connected to the neutral line and live line of the AC220V power supply, and the secondary input terminals of the rectifier transformer One output end is connected with the air-conditioning controller; the remote period controller is a relay, and its switch is connected between the other output end of the rectifier transformer secondary and the air-conditioning controller.

The beneficial effects of the utility model are:

1. The utility model includes a central controller and a remote control module installed in the main unit of the air conditioner. Since the remote control module can send the indoor temperature signal to the central controller, the central controller compares the temperature signal with the pre-set The temperature is compared, and after the comparison, the control signal is output and the control circuit of the compressor is controlled by the remote control module to cut off or close, so that the compressor stops or starts to work, so as to achieve the purpose of remote control and adjustment of the temperature of the air conditioner, so that it can be automatically adjusted according to the indoor temperature The air conditioner compressor works, which greatly saves electric energy.

2. Since the remote control module can send the working status signal of the compressor to the central controller in a bus, the central controller outputs a control signal according to the working status signal of the compressor and the preset command. The remote control module controls the compression signal. The air conditioner works in the set time period and stops working in other time periods, which realizes remote time period control, so when people forget to turn off the air conditioner when they get off work, the central controller will automatically cut off the control power of the air conditioner controller when the time comes The air conditioner controller is stopped working, and the effects of safe use of the air conditioner and energy saving are achieved.

[Description of drawings]

Figure 1 is a schematic diagram of the circuit connection of the present invention.

[Detailed ways]

Below in conjunction with accompanying drawing and embodiment of the present utility model, further describe in detail:

As shown in FIG. 1 , a remote control circuit of a split air conditioner includes an air conditioner host control circuit 20 , a remote control module 1 and a central controller 2 .

The control circuit 20 of the main unit of the air conditioner includes a control power supply 3 , an air conditioner controller 4 and a compressor switch 7 . The remote control module 1 is arranged in the main unit of the air conditioner and is electrically connected with the control circuit 20 of the main unit of the air conditioner; the remote control module 1 itself has a storage function with a capacity of 2K, and can store a small section of program inside itself, mainly to prevent the air conditioner from being damaged when the computer or system fails. The equipment is not affected, and each working point can operate normally according to the preset working procedure. It stores the working mode you set in each working mode when the central controller 2 and the remote control module 1 communicate for the first time. In the remote control module 1, when the communication is normal, the two refresh each second to exchange information with each other.

The remote control module 1 includes: a remote temperature controller 5 and a remote time period controller 6 . The remote temperature controller 5 can cut off or turn on the compressor switch 7 under the control of the central controller 2 to realize remote temperature adjustment control according to the indoor temperature fed back by the room temperature sensor-R1; The incoming air conditioner working state cuts off or connects the electric connection between the control power supply 3 and the air conditioner controller 4 under the control of the central controller 2, so as to realize remote period control.

The central controller 2 is bus-connected with all the remote control modules 1, and it remotely controls and monitors the operation of each air conditioner through the remote control modules 1 at all times. The central controller 2 adopts RS485 or RS232 communication that can connect up to 254 modules. Each remote control module 1 is provided with a communication interface, which supports multiple communication protocols. The communication address is set by the system software. The communication distance is 1200m, such as For a longer distance, a communication repeater can be installed, which can be extended by 800m.

In the present utility model, both the remote temperature controller 5 and the remote period controller 6 use relays, and of course other devices capable of switching can also be used. The control power supply 3 is a rectifier transformer-T, the two primary input ends of which are respectively connected to the neutral wire N and live wire L1 of the AC220V power supply, the rectifier transformer can step down and rectify the AC220V into DC24V, and the rectifier transformer- An output end of the T secondary is connected with the air-conditioning controller 4, and the switch-K3 of the remote period controller 6 is connected between the other output end of the rectifier transformer-T secondary and the air-conditioning controller 4, so that the control power supply 3, The remote period controller 6 and the air conditioner controller 4 are connected in sequence to form a loop. The compressor switch 7 is a relay, one end of the switch-K1 of the relay is connected to the live line L1 of the AC220V power supply, the other end of the switch-K1 is connected to an input end of the compressor M, and the other end of the input end of the compressor M is connected to the AC220V On the neutral line N of the power supply, one end of the coil of the relay is connected to the air-conditioning controller 4 , and the switch -K4 of the remote temperature controller 5 is connected between the other end of the coil of the relay and the air-conditioning controller 4 .

The working principle of the present utility model is as follows: the remote control module 1 feeds back the indoor temperature signal from the room temperature sensor-R1 to the central controller 2, and the central controller 2 compares the temperature signal with the temperature set in advance, After the comparison, if the room temperature reaches the set higher temperature, the central controller 2 outputs the control signal of closing the compressor and controls the switch-K4 of the remote temperature controller 5 through the remote control module 1 to disconnect, and the compressor switch 7 is turned off due to power loss. The switch-K1 is disconnected, thereby cutting off the connection between the compressor and the power supply, so that the compressor stops working; because the compressor stops working, the indoor temperature changes, and if the room temperature drops to the set lower temperature after comparison, the central control will The controller 2 outputs the control signal for starting the compressor and controls the switch-K4 of the remote temperature controller 5 to close through the remote control module 1, so that the compressor switch 7 is energized and connected to the compressor and the live wire L1 of the AC220V power supply, so that The compressor starts to work; this is repeated to realize remote temperature adjustment. In this way, the air conditioner compressor is automatically adjusted to work according to the indoor temperature, which greatly saves electric energy.

At the same time, the remote control module 1 sends the working state signal of the compressor fed back by the air-conditioning controller 4 to the central controller 2 in a bus. The central controller 2 internally sets the period control command in advance to control the compressor to work in the set period and stop working in other periods, for example, it is set at 8:00 am to 12:00 am and 2:00 pm to 5:00 pm. Working time, other time periods control the compressor to stop. The central controller 2 outputs a control signal after comparing the working status signal of the compressor with the preset command, and the control signal controls the switch-K3 of the remote period controller 6 to be closed or opened through the remote control module 1, and the air conditioner is turned on or off The control power supply 3 of the machine, so that the local air-conditioning controller 4 can be turned on or cannot be turned on, thus realizing remote period control, so when people forget to turn off the air-conditioner when they are off work, when the time comes, the central controller 2 will automatically cut off the air-conditioning control of the air-conditioning The control power supply 3 of the device 4 makes the air conditioner controller 4 stop working, thereby achieving the effects of safe use of the air conditioner and energy saving.

Claims (3)

1. A remote control circuit for a split-type air conditioner, comprising an air conditioner host control circuit (20) containing a control power supply (3), an air conditioner controller (4) and a compressor switch (7) inside, characterized in that it also includes : A remote control module (1), which is arranged in the main unit of the air conditioner and is electrically connected to the control circuit (20) of the main unit of the air conditioner; A central controller (2) bus-connected to all remote control modules (1), which remotely controls and monitors each air conditioner through the remote control modules (1); The remote control module (1) includes: A remote temperature controller (5), which can cut off or turn on the compressor switch (7) under the control of the central controller (2) according to the indoor temperature fed back by the room temperature sensor (-R1) to realize remote temperature adjustment control; The remote period controller (6), which can cut off or connect the control power supply (3) and the air conditioner controller (4) under the control of the central controller (2) according to the air conditioner working status fed back by the air conditioner controller (4) Inter-electrical connection to realize remote period control. 2. A remote control circuit for a split air conditioner according to claim 1, characterized in that the compressor switch (7) is a relay, and one end of the switch (-K1) of the relay is connected to the live wire (L1) of the AC220V power supply , the other end of the switch (-K1) is connected to one input end of the compressor (M), and the other end input end of the compressor (M) is connected to the neutral line (N) of the AC220V power supply, and one end of the coil of the relay is connected to the air conditioner The controller (4) is connected; the remote temperature controller (5) is a relay, and the switch (-K4) of the relay is connected between the coil other end of the compressor switch (7) and the air-conditioning controller (4). 3. The remote control circuit of a split type air conditioner according to claim 1, characterized in that the control power supply (3) is a rectifier transformer (-T), and the two primary input ends of the rectifier transformer (-T) are respectively connected to On the neutral wire (N) and live wire (L1) of the AC220V power supply, an output terminal of the rectifier transformer (-T) secondary is connected to the air conditioner controller (4); the remote time period controller (6) is a relay, and its switch (-K3) is connected between the other output terminal of the rectifier transformer (-T) secondary and the air conditioner controller (4).

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