CN2246265Y - Air conditioning unit with fire alarm function - Google Patents

Abstract

An air conditioner with fire alarm function is composed of power supply unit, temp sensing and converting unit with temp sensor, processing unit, operating unit and output unit, and the alarm unit connected to air supply motor, air conditioner and fire alarm signal receiving unit.

Description

Air conditioning unit with fire alarm function

The utility model relates to an air-conditioning device, in particular to an air-conditioning device with a fire alarm function which can immediately send out an alarm sound when a fire alarm occurs in a building to improve the safety of building personnel.

In the past, the building was equipped with an air-conditioning device and a fire alarm receiving system. The fire alarm receiving system and the air-conditioning device are independent operating systems, and there is no connection between the two. Figures 1 and 2 show the air-conditioning device and the fire alarm receiving system in the past. The schematic diagram of the flow chart, when the air conditioner is used in the air conditioning system of the building in the past, the air conditioner 1 and the fire alarm receiving system 2 of the building are usually installed separately. The required voltage, and the air conditioner is turned on by the operating unit 12 and the predetermined room temperature value is set. The predetermined value of the room temperature will be converted into a digital signal and memorized by the processing unit 13, and the temperature sensor in the conversion unit 11 will be detected (not shown in the figure) also starts to sense the room temperature, and the measured actual room temperature value will also be converted into a digital signal and input into the processing unit 13, and compared with the predetermined room temperature value, when the actual measured room temperature value When the room temperature is higher than the predetermined room temperature, the processing unit 13 sends a signal to the output unit 15 to control the motor 151 and the air conditioner 152 to open to send out cold air. When the actual room temperature is lower than the predetermined room temperature, the processing unit 13 closes the air conditioner 152. And the motor 151 still continues to act, to keep the air supply state. But when a fire breaks out in the building and generates smoke, the smoke detection unit 21 in the fire alarm receiving system 2 will start the alarm unit 22 to send a warning sound after detecting a certain amount of smoke information. When the temperature-sensing unit 23 in the system 2 senses that the actual room temperature value has exceeded the fixed value (generally 70) predetermined by the fire alarm receiving system 2, the temperature-sensing unit 23 will start the automatic sprinkler unit 24 to sprinkle water, but , while the fire alarm receiving system 2 is in operation, the temperature controller of the air conditioner is not closed but still in an open state, so that the flowing air sent from the motor 151 will promote the burning of the fire.

The purpose of the utility model is to provide an air conditioner with a fire alarm function which can give an early fire alarm to improve the public safety of the building.

The utility model is characterized in that: the output part of the air-conditioning device is connected with the alarm sounding part of the fire alarm receiving part, so that when the temperature sensor in the air-conditioning device senses the set room temperature value, it can send a signal to the connected fire alarm receiving part. The alarm siren sounded.

The technical scheme of the utility model is:

The air conditioner with fire alarm function includes a power supply part, a temperature detection conversion part, a processing part, an operation part and an output part, the temperature detection conversion part is provided with a temperature sensor, and the output part is connected to the transmission part respectively. The wind motor, the air-conditioning host and the alarm receiver of the fire alarm are connected. The temperature detection conversion part senses the room temperature and converts the room temperature value into a digital signal for comparison in the processing part. When the actual room temperature value exceeds the processing part When the preset value is set, the processing part will send a control signal to the output part, so that the output part controls the power supply of the air supply motor and the air-conditioning main unit and the alarm sounds, which not only improves the temperature controller and fire alarm of the previous air-conditioning device The loss caused by the simultaneous action of the communication devices in the event of a fire can effectively improve public safety.

The air conditioner with fire alarm function of the present utility model is described in detail below through the best embodiment and accompanying drawings, in the accompanying drawings:

Figure 1 is a schematic flow chart of the conventional central air-conditioning system temperature controller system.

Fig. 2 is a flow diagram of the conventional fire alarm receiving system.

Fig. 3 is a schematic flow diagram of a better embodiment of the utility model.

Fig. 4 is a circuit diagram of a better embodiment of the utility model.

As shown in Figure 3, it is a schematic flow chart of a preferred embodiment of the present invention. This embodiment includes a power supply part 6, a temperature detection conversion part 3, a processing part 5, an operation part 4, and an output Part 7 provides the power supply voltage required by each part through the power supply part 6, and the air conditioner is turned on by the operating part 4 and a predetermined room temperature is set. The predetermined value of the room temperature will be converted into a signal and stored by the processing part 5. At the same time, the temperature detection The conversion part 3 also begins to sense the room temperature, and the actual measured room temperature value will be converted into a signal and input to the processing part 5 for comparison with the predetermined room temperature value, and the output part 7 is provided with a blower motor connected to it 71. Air-conditioning main unit 72 and fire alarm receiving part 8, the output part 7 is connected with the alarm buzzer 82 of the fire alarm receiving part 8. Moreover, this embodiment takes the utility model used in a central air-conditioning system as an example, and the air-conditioning host 72 in the central air-conditioning system includes a chilled water host 721 and a chilled water valve 722. In addition, the utility model can also be used in general single In the type air conditioner, the air conditioner in the general stand-alone type air conditioner is the compressor.

As shown in Figure 4, it is a circuit diagram of a better embodiment of the present utility model, and in conjunction with Figure 3, the power supply part 6 of this embodiment includes a radio frequency noise filter 61 that can prevent external noise interference, and can optionally switch the power supply voltage A switch part 62 for 110V or 220V AC voltage, an AC conversion DC circuit 63, and a voltage stabilizing circuit 64 composed of a voltage stabilizing block (78H05). The temperature detection conversion part 3 is composed of a temperature sensor 31 capable of sensing room temperature and a temperature conversion circuit 32 . The processing part 5 comprises a central processing unit 51 (such as the model is 16C55), an oscillation circuit 52 and a reset circuit 53, the central processing unit 51 can receive and process the signal sent to the processing part 5 by the temperature detection conversion part 3, The oscillating circuit 52 can provide the continuous pulse required for the CPU 51 to operate, and the reset circuit 53 can reset (Rest) the CPU 51 . The operation part 4 includes an operation panel 41 for personnel to operate and a transistor group 42 for strengthening signals. The output unit 7 includes joints 711, 723, 725, 731 connected to the air blowing motor 71, the chilled water main unit 721 of the air-conditioning main unit 72, the chilled water valve 722, and the siren 82 of the fire alarm receiving unit 8, which can control the air supply. Wind motor 71 rotating speed speed and drive chilled water host machine 72 and chilled water valve 73 operation and the relay 712, 724, 726, 732 that the siren 82 of fire alarm receiving part 8 produces alarm sound, and a processing part 5 control can decide Whether the relays 712, 724, 726, 732 generate excitation to determine the drive integrated circuit 74 ( For example, the model is ULN2003).

The user can switch the AC voltage (110V or 220V) required by the blower motor 71 through the switch part 62. The operating part 4 turns on the air conditioner and sets a predetermined room temperature. The predetermined value of the room temperature will be converted into a digital signal and memorized by the central processing unit 51 in the processing part 5. At the same time, the temperature sensor in the temperature detection conversion part 3 31 also starts to sense the room temperature, and the measured room temperature value is an analog signal, so it needs to be converted into a digital signal by the temperature conversion circuit 32 and then sent to the central processing unit 51, at this time, the central processing unit 51 will compare the value with the default room temperature value for comparison. When the actual room temperature is higher than the predetermined room temperature set by the operation part 4, the processing part 5 will send a series of digital signals to the drive integrated circuit 74 of the output part 7, so that the drive integrated circuit 74 simultaneously excites the relay 712 , 726, and start the blower motor 71 in the output part 7, and open the chilled water valve 722 to send cold air (wherein the relay 724 is normally open, that is, when the power is turned on, the chilled water host 721 starts to start ). When the actual room temperature value was lower than the preset room temperature value, the drive integrated circuit 74 of the processing unit 5 made the control to close the ice water valve 73 to be in the closed state, but the air supply motor 71 still continued to run to keep the air supply state. At this time, the central The processor 51 still continues to compare the actual room temperature value measured by the temperature sensor 31 with the preset room temperature value input through the operation panel 41 and the default dangerous room temperature value of the central processing unit 51. When the actual room temperature measured by the device 31 exceeds the default dangerous room temperature value (generally set to 50) of the central processing unit 51, the central processing unit 51 will also output a series of digital signals to the drive integrated circuit 74 of the output part 7, through The drive integrated circuit 74 controls the relays 712, 726 to no longer be energized and is in a power-off state. In this way, the air supply motor 71 is no longer running, and the ice water valve 722 is also closed (ice water cannot enter), and no longer sends cold air. At this time, the central processing unit 51 sends a signal to the output part 7, so that the relay 732 is energized and conducted, so that the output part 7 and the alarm 82 of the fire alarm receiving part 8 form a connection state through the joint 731, and then start the fire alarm receiving. The buzzer 82 of the section 8 generates an alarm sound to warn personnel of the fire. While the air conditioner is in operation, the fire alarm receiving part 8 also remains open, that is, the smoke detector 81 inside the fire alarm receiving part 8 will detect the indoor smoke concentration, and when the amount of smoke reaches a certain value, the smoke detector will 81 just informs the siren 82 to send the alarm sound, and simultaneously, the temperature sensing portion 83 of the fire alarm receiving portion 8 also constantly senses the room temperature, when the room temperature value reaches or exceeds the default temperature value of the temperature sensing portion 83 (generally set to 70 ), the temperature sensing part 83 will immediately start the automatic sprinkling part 84 to carry out the sprinkling action. Similarly, if the automatic sprinkling part 84 is sprinkling water, the room temperature sensed by the temperature sensing part 83 is already lower than a fixed value (generally set When it is 70), the temperature sensing part 83 will close the automatic sprinkling part 84. If the amount of smoke detected by the smoke detector 81 has been lower than a fixed value, the smoke detector 81 will also close the siren 82. .

The central processing unit 51 in the processing unit 5 outputs a series of digital signals to the driving integrated circuit 74 in the output unit 7, so that the driving relay 74 is energized to start or close the air blowing motor and the ice water valve correspondingly connected to the relay. Or the siren of the fire alarm receiving part, that is, when the actual room temperature exceeds the preset value of the processing part, the processing part 5 sends a control signal to the output part 7, so that the output part 7 controls the air supply motor and the ice water The valve is de-energized and the siren sounds an alarm, which not only improves the lack of previous air-conditioning devices and fire alarm receiving devices that act at the same time when a fire breaks out, which promotes the spread of the fire, but also gives people more time and opportunities to escape calmly and effectively Improve public safety.

To sum up, the utility model has an air-conditioning device with a fire alarm function, and the output part is connected to the alarm buzzer of the fire alarm receiving part, so as to effectively achieve fire alarm and improve public safety.

Claims (2)

1. An air conditioner with fire alarm function, comprising a power supply part, a temperature detection conversion part, a processing part, an operation part and an output part, the power supply part provides the working power required by other parts, The temperature detection conversion part has a temperature sensor that senses the room temperature and converts the sensed value into a digital signal. The processing part includes a central processing unit and an oscillation circuit that provides the continuous pulse required by the central processing unit. The processor receives and processes the signal sent from the temperature detection conversion part to the processing part, and compares it with the preset room temperature stored in the central processing unit to output a signal. The operation part includes a preset room temperature value that can be input to the processing part An operation panel and a transistor group, the output part receives the signal output by the processing part, includes a driving integrated circuit, and is connected to the air blowing motor and the air conditioner respectively, and is characterized in that: The output part is connected with a siren of the fire alarm reception part. 2. The air conditioner with fire alarm function as claimed in claim 1, characterized in that: The output part is provided with a joint connected with the fire alarm receiving part, and the joint is controlled by the relay excitation in the circuit of the output part, and the output part also includes a driving integrated circuit, which excites the relay and communicates with the The connector connected to the relay is connected to activate the siren of the fire alarm receiving department.

Images