CN-224230180-U - Air conditioner

Abstract

The utility model discloses an air conditioner, and belongs to the technical field of air conditioners. The air conditioner comprises an indoor unit which comprises an indoor heat exchanger, an outdoor unit which comprises a compressor and an outdoor heat exchanger, a refrigerant circulation loop which enables refrigerant to circulate in a loop formed by the compressor, the condenser and the evaporator in sequence, one of the condenser and the evaporator is the outdoor heat exchanger, the other is the indoor heat exchanger, a fire extinguishing device which comprises a photoionization detector which is used for detecting oil in the refrigerant leaked by the refrigerant circulation loop in real time, a fire extinguisher which is connected to a refrigerant pipe of the refrigerant circulation loop through a conveying pipe, a fire extinguishing electromagnetic valve which is arranged on the conveying pipe, and a solenoid valve component which is arranged on the refrigerant circulation loop and is used for conducting or cutting off a refrigerant flow path between the indoor unit and the outdoor unit. The photoionization detector is adopted, so that the existence of fire risk substances can be rapidly detected in the early stage of refrigerant leakage, and the fire extinguisher is utilized for flame retardance, so that the occurrence of fire is rapidly prevented or the fire is rapidly eliminated.

Inventors

• ZHANG XIAOLIN
• SONG YIPING
• ZHANG RAN
• WU HONGXIA

Assignees

• 海信空调有限公司

Dates

Publication Date

20260512

Application Date

20250306

Claims (10)

1. 1. An air conditioner, comprising: The indoor unit comprises an indoor heat exchanger; an outdoor unit including a compressor and an outdoor heat exchanger; A refrigerant circulation loop for circulating the refrigerant in the loops formed by the compressor, the condenser and the evaporator in sequence, wherein one of the condenser and the evaporator is the outdoor heat exchanger, and the other is the indoor heat exchanger; Fire extinguishing apparatus, the fire extinguishing apparatus comprising: the photoionization detector is used for detecting oil in the refrigerant leaked by the refrigerant circulation loop in real time; The fire extinguisher is connected to a refrigerant pipe of the refrigerant circulation loop through a conveying pipe, and a fire extinguishing electromagnetic valve is arranged on the conveying pipe and used for conducting or cutting off a flow path between the fire extinguisher and the refrigerant circulation loop; The electromagnetic valve assembly is arranged on a refrigerant pipe of the refrigerant circulation loop and used for conducting or cutting off a refrigerant flow path between the indoor unit and the outdoor unit; When the refrigerant circulation loop leaks, the fire extinguishing electromagnetic valve enables the conveying pipe to be communicated with the refrigerant circulation loop, the electromagnetic valve component cuts off a refrigerant flow path between the indoor unit and the outdoor unit, and fire extinguishing agent in the fire extinguisher enters the refrigerant circulation loop through the conveying pipe to extrude the refrigerant from the leakage port.
2. 2. The air conditioner of claim 1, wherein the fire extinguishing device further comprises a check valve provided on the delivery pipe.
3. 3. The air conditioner as set forth in claim 1, wherein said photo-ionization detector is provided in said outdoor unit for detecting oil in refrigerant leaked in said outdoor unit in real time; The outdoor heat exchanger is connected with the compressor through a second refrigerant pipe, and the fire extinguisher is connected to the second refrigerant pipe through a conveying pipe; When refrigerant leakage occurs in the outdoor unit, the fire extinguishing electromagnetic valve enables the conveying pipe to be communicated with the second refrigerant pipe, and the electromagnetic valve component cuts off a refrigerant flow path between the indoor unit and the outdoor unit, so that the fire extinguishing agent in the fire extinguisher enters the second refrigerant pipe through the conveying pipe, and the refrigerant is extruded from the leakage port.
4. 4. The air conditioner according to claim 1 or 3, wherein the photoionization detector is provided in the indoor unit for detecting oil in refrigerant leaked into the indoor unit in real time; The indoor heat exchanger is connected with the outdoor heat exchanger through a third refrigerant pipe, the third refrigerant pipe is provided with an indoor unit interface, the indoor heat exchanger is connected with the compressor through a first refrigerant pipe, and the fire extinguisher is connected to the indoor unit interface through a conveying pipe; When refrigerant leakage occurs in the indoor unit, the fire extinguishing electromagnetic valve enables the conveying pipe to be communicated with the third refrigerant pipe, the electromagnetic valve component cuts off a refrigerant flow path between the indoor unit and the outdoor unit, and fire extinguishing agent in the fire extinguisher sequentially enters the third refrigerant pipe, the indoor heat exchanger and the first refrigerant pipe through the conveying pipe to extrude the refrigerant from a leakage port.
5. 5. The air conditioner of claim 1, wherein the solenoid valve assembly comprises: the compressor is connected with the outdoor heat exchanger and the conveying pipe through the first electromagnetic valve; the second electromagnetic valve is arranged on a refrigerant pipe between the compressor and the indoor heat exchanger; the third electromagnetic valve is arranged on a refrigerant pipe between the outdoor heat exchanger and the indoor heat exchanger; When refrigerant leakage occurs in the outdoor unit, the first electromagnetic valve cuts off the compressor and the outdoor heat exchanger, and the third electromagnetic valve cuts off the indoor heat exchanger and the outdoor heat exchanger so as to cut off a refrigerant flow path between the indoor unit and the outdoor unit; when refrigerant leakage occurs in the indoor unit, the second electromagnetic valve cuts off the compressor and the outdoor heat exchanger, and the third electromagnetic valve cuts off the indoor heat exchanger and the outdoor heat exchanger, so that a refrigerant flow path between the indoor unit and the outdoor unit is cut off.
6. 6. The air conditioner of claim 5, wherein the first, second and third solenoid valves are normally open solenoid valves.
7. 7. The air conditioner of claim 1, wherein the delivery pipe of the fire extinguisher is detachably connected to the refrigerant pipe of the refrigerant circulation circuit through a reversing valve.
8. 8. The air conditioner of claim 1, wherein the outdoor unit further comprises an electric control board electrically connected to the solenoid valve assembly and the fire extinguishing solenoid valve.
9. 9. The air conditioner of claim 8, wherein the fire extinguishing device further comprises a control board electrically connected to the electric control board, the control board being electrically connected to the fire extinguisher for activating the fire extinguisher.
10. 10. An air conditioner, comprising: An outdoor unit including: A compressor; One end of the outdoor heat exchanger is connected with the compressor through a second refrigerant pipe, and the other end of the outdoor heat exchanger is connected to an indoor unit interface; Fire extinguishing device, with outdoor unit detachable connection, fire extinguishing device includes: The photoionization detector is arranged in the outdoor unit and is used for detecting oil in the refrigerant leaked from the outdoor unit in real time; The fire extinguisher is provided with a conveying pipe, the conveying pipe is detachably connected to the second refrigerant pipe, and a fire extinguishing electromagnetic valve is arranged on the conveying pipe; The first electromagnetic valve is arranged on the second refrigerant pipe between the conveying pipe and the compressor and is used for conducting or cutting off a refrigerant flow path between the second refrigerant pipe and the compressor; In the transportation process of the air conditioner, when the photoionization detector detects that the refrigerant leaks, the fire extinguishing electromagnetic valve enables the conveying pipe to be communicated with the second refrigerant pipe, the first electromagnetic valve cuts off a refrigerant flow path between the second refrigerant pipe and the compressor, and fire extinguishing agent in the fire extinguisher enters the second refrigerant pipe through the conveying pipe to extrude the refrigerant from the leakage port.

Description

Air conditioner Technical Field The utility model belongs to the technical field of air conditioners, and particularly relates to an air conditioner. Background With the improvement of the living standard of people, air conditioners have become indispensable electrical equipment in homes and businesses. However, the air conditioning system may cause fire during operation due to aging of lines, poor contact of connection terminals, failure of components, short circuit, and the like. Particularly, the refrigerant leakage problem in the air-conditioning refrigeration system is very easy to ignite and cause fire accidents once electric sparks or electrostatic sparks are encountered. In the related art, the fire extinguishing technology of the air conditioner mainly comprises the steps of carrying out infrared detection and smoke monitoring on the inside of the air conditioner, outputting corresponding infrared detection and smoke monitoring signals, judging whether fire occurs in the air conditioner according to the detection signals, and when judging that the fire occurs in the air conditioner, releasing fire extinguishing materials in the air conditioner and giving out a fire alarm prompt, wherein the fire extinguishing materials cannot be timely effective when the condition of the fire caused by leakage of air conditioner refrigerant is dealt with, the infrared detection and the smoke monitoring of the air conditioner cannot be timely reacted after the air conditioner refrigerant leaks, and the flame caused by the refrigerant sprayed is jet fire, so that the common fire extinguishing materials cannot be effectively inhibited against the fire. In order to solve the technical problems, the pressure sensor is used for detecting the pressure in the refrigerant circulation loop in real time to judge whether the refrigerant in the outdoor unit leaks or not, and a fire extinguisher is adopted for fire retarding and extinguishing when the refrigerant leaks. The technical scheme can detect and judge the fire disaster caused by air conditioner refrigerant leakage in advance, and effectively prevent the occurrence of the fire disaster. However, when the pressure sensor is used for detecting the leakage of the refrigerant, the risk of fire cannot be found in time at the initial stage of the leakage, and the expansion of the fire is easily caused. In addition, the pressure sensor may cause false alarm or missing alarm due to factors such as pressure fluctuation or temperature change of the refrigerating system, and the reliability of fire extinguishment is reduced. Particularly, in the transportation process, the pressure sensor is difficult to accurately judge the refrigerant leakage condition due to the change of external conditions (such as pressure fluctuation caused by jolt), and the reliability and the accuracy of the fire extinguishing system are affected. Disclosure of utility model The present utility model aims to solve at least one of the technical problems in the related art to some extent. For this purpose, According to an embodiment of the present disclosure, there is provided an air conditioner including: The indoor unit comprises an indoor heat exchanger; an outdoor unit including a compressor and an outdoor heat exchanger; A refrigerant circulation loop for circulating the refrigerant in the loops formed by the compressor, the condenser and the evaporator in sequence, wherein one of the condenser and the evaporator is the outdoor heat exchanger, and the other is the indoor heat exchanger; Fire extinguishing apparatus, the fire extinguishing apparatus comprising: the photoionization detector is used for detecting oil in the refrigerant leaked by the refrigerant circulation loop in real time; The fire extinguisher is connected to a refrigerant pipe of the refrigerant circulation loop through a conveying pipe, and a fire extinguishing electromagnetic valve is arranged on the conveying pipe and used for conducting or cutting off a flow path between the fire extinguisher and the refrigerant circulation loop; The electromagnetic valve assembly is arranged on a refrigerant pipe of the refrigerant circulation loop and used for conducting or cutting off a refrigerant flow path between the indoor unit and the outdoor unit; When the refrigerant circulation loop leaks, the fire extinguishing electromagnetic valve enables the conveying pipe to be communicated with the refrigerant circulation loop, the electromagnetic valve component cuts off a refrigerant flow path between the indoor unit and the outdoor unit, and fire extinguishing agent in the fire extinguisher enters the refrigerant circulation loop through the conveying pipe to extrude the refrigerant from the leakage port. The technical scheme has the advantages that the photoionization detector (PID) is adopted, so that lubricating oil mixed in the refrigerant leakage process can be directly detected, and the fire risk can be more directly judged. In addition,