Air conditioner, control strategy of the air conditioner, and air conditioning system

Patent metadata

Field	Value
Publication number	US-11287148-B2
Application number	US-201816760441-A
Country	US
Kind code	B2
Filing date	Oct 29, 2018
Priority date	Oct 30, 2017
Publication date	Mar 29, 2022
Grant date	Mar 29, 2022

Abstract

The present disclosure provides an air conditioner, a control strategy of the air conditioner and an air conditioning system. The air conditioner includes a compressor, a first heat exchanger, a phase-change thermal-storage heat exchanger, a throttling device and a box. The throttling device is provided between the first heat exchanger and the phase-change thermal-storage heat exchanger. One of the first heat exchanger and phase-change thermal-storage heat exchanger functions as an evaporator and the other functions as a condenser. The box includes an air supply port and an air return port. The compressor, the first heat exchanger, the phase-change thermal-storage heat exchanger and the throttling device are mounted in the box, thereby facilitating installation of the air conditioner.

First claim

What is claimed is:

1. An air conditioner comprising: a compressor, a first heat exchanger, a phase-change thermal-storage heat exchanger, a throttling device and a box;
one of a first end of the first heat exchanger and a first end of the phase-change thermal-storage heat exchanger being communicated with an outlet of the compressor, and a remaining one of the first end of the first heat exchanger and the first end of the phase-change thermal-storage heat exchanger being communicated with an inlet of the compressor;
the throttling device being provided between a second end of the first heat exchanger and a second end of the phase-change thermal-storage heat exchanger;
the box comprising an air supply port and an air return port;
the compressor, the first heat exchanger, the phase-change thermal-storage heat exchanger and the throttling device being mounted in the box;
wherein the air conditioner further comprises a temperature sensor, a human body sensor and a control module, the phase-change thermal-storage heat exchanger comprises a first sensor adapted to detect one-phase content of a phase change medium; the first sensor, the temperature sensor, the human body sensor and the compressor are electrically connected to the control module, and the temperature sensor is adapted to detect ambient temperature.

2. The air conditioner according to claim 1 , further comprising a reversing unit which comprises a first port, a second port, a third port and a fourth port, the outlet of the compressor being communicated with the first port, the inlet of the compressor being communicated with the third port, the first end of the first heat exchanger being communicated with the second port, and the first end of the phase-change thermal-storage heat exchanger being communicated with the fourth port.

3. The air conditioner according to claim 1 , wherein there are a plurality of temperature sensors, and the plurality of temperature sensors are spaced apart from each other and distributed in the box.

4. The air conditioner according to claim 3 , wherein at least one of the plurality of temperature sensors is installed at the air supply port of the air conditioner.

5. The air conditioner according to claim 1 , wherein the box comprises a box body with a top opening and a top cover closes the top opening of the box body, the top cover being provided with a plurality of lugs adapted for being mounted to a roof or a ceiling with the air supply port facing to the ground.

6. The air conditioner according to claim 1 , wherein the box is provided with a plurality of lugs which are adapted to suspend the box on a side wall.

7. The air conditioner according to claim 1 , wherein the air conditioner is a desktop air conditioner which comprises a handle portion provided at the box.

8. The air conditioner according to claim 1 , wherein the air supply port and the air return port are located on a same side of the box or on different sides of the box.

9. A control strategy of an air conditioner which comprises:
a compressor, a first heat exchanger, a phase-change thermal-storage heat exchanger, a throttling device and a box, a temperature sensor, a human body sensor and a control module;
one of a first end of the first heat exchanger and a first end of the phase-change thermal-storage heat exchanger being communicated with an outlet of the compressor, and a remaining one of the first end of the first heat exchanger and the first end of the phase-change thermal-storage heat exchanger being communicated with an inlet of the compressor;
the phase-change thermal-storage heat exchanger comprising a first sensor adapted to detect one-phase content of a phase change medium;
the throttling device being provided between a second end of the first heat exchanger and a second end of the phase-change thermal-storage heat exchanger;
the box comprising an air supply port and an air return port;
the compressor, the first heat exchanger, the phase-change thermal-storage heat exchanger and the throttling device being mounted in the box;
the first sensor, the temperature sensor, the human body sensor and the compressor being electrically connected to the control module, the temperature sensor being adapted to detect ambient temperature;
the control strategy of the air conditioner comprising following steps:
S 1 , determining whether the air conditioner is running;
S 21 , if the air conditioner is running, determining whether there are any people around the air conditioner;
S 31 a , if there are no people around the air conditioner, determining whether a time without people around exceeds a predetermined time;
S 41 a , if the time without people around exceeds the predetermined time, determining whether the ambient temperature reaches a set value;
S 51 a , if the ambient temperature reaches the set value, turning off the air conditioner, detecting the one-phase content of the phase change medium of the phase-change thermal-storage heat exchanger, and determining whether the one-phase content of the phase change medium is less than a first predetermined volume; and
S 61 a , if the one-phase content of the phase change medium is less than the first predetermined volume, starting a regeneration cycle of the air conditioner; and when the one-phase content of the phase change medium is greater than a second predetermined volume, turning off the regeneration cycle of the air conditioner.

10. The control strategy of the air conditioner according to claim 9 , further comprising a step after the step S 21 :
S 31 b , if there are any people around the air conditioner, then detecting the one-phase content of the phase change medium; and when the one-phase content of the phase change medium is less than the first predetermined volume, prompting a user that the one-phase content of the phase change medium is insufficient.

11. The control strategy of the air conditioner according to claim 9 , wherein in the step S 31 a , if the time without people around does not exceed the predetermined time, then returning to the step S 1 ;
in the step S 41 a , if the ambient temperature does not reach the set value, returning to the step S 1 ;
in the step S 51 a , if the one-phase content of the phase change medium is not less than the first predetermined volume, returning to the step S 1 ;
after the step S 61 a , returning to the step S 1 .

12. The control strategy of the air conditioner according to claim 9 , further comprising following steps after the step S 1 :
S 22 , if the air conditioner is not running, determining whether there are any people around the air conditioner;
S 32 a , if there are no people around the air conditioner, detecting the one-phase content of the phase change medium of the phase-change thermal-storage heat exchanger, and determining whether the one-phase content of the phase change medium is less than the first predetermined volume;
if the one-phase content of the phase change medium is less than the first predetermined volume, executing the step S 61 a;
if the one-phase content of the phase change medium is not less than the first predetermined volume, returning to the step S 1 .

13. The control strategy of the air conditioner according to claim 12 , further comprising following steps after the step S 22 :
S 32 b , if there are people around the air conditioner and the ambient temperature reaches the predetermined value, detecting the one-phase content of the phase change medium;
S 33 b , when the one-phase content of the phase change medium is less than the first predetermined volume, prompting a user that the one-phase content of the phase chang

Assignees

• Zhejiang Sanhua Intelligent Controls Co Ltd

Inventors

• Zhang Peilan
• Huang Longzhong
• Yin Bin
• Huang Lin-Jie
• Zhou Chunyou

Classifications

• F24F2110/10

  Temperature · CPC title

• F25B13/00 Primary

  Compression machines, plants or systems, with reversible cycle (defrosting cycles F25B47/02) · CPC title

• F24F11/84

  using valves · CPC title

• F24F13/30

  Arrangement or mounting of heat-exchangers · CPC title

• F24F1/027

  mounted in wall openings, e.g. in windows · CPC title