Air conditioner heat pump system
By setting up heating sections in the circulation pipeline of the air-conditioning heat pump system and heating the chassis with high-temperature refrigerant, the problem of the chassis of the air-conditioning heat pump system freezes in winter is solved, reducing energy consumption and improving the safety of the system.
Patent Information
- Application Number
- CN202421681158.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-16
AI Technical Summary
When the existing air-conditioning heat pump system is used in winter, the condensate water of the outdoor unit chassis is prone to freeze in a low temperature environment, resulting in poor drainage. The long-term power supply of the electric heating belt increases energy consumption and poses safety hazards.
An air-conditioning heat pump system is designed to prevent the chassis from freezing and reduce energy consumption by setting heating sections in the circulation pipeline and using high-temperature refrigerant to heat the chassis instead of the original electric heating belt.
It effectively avoids the chassis freezing in low-temperature environments, reduces energy consumption, and avoids safety hazards during long-term operation of electric heating belts.
Smart Images
Figure CN222811958U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air-conditioning heat pumps, in particular to an air-conditioning heat pump system. Background Art
[0002] The air conditioning heat pump is a circulation system composed of a compressor, an outdoor unit and an indoor unit. The refrigerant circulates in the heat pump unit under the action of the compressor, thereby achieving the function of cooling in summer or heating in winter. Therefore, air conditioning heat pump units are widely used in various places such as residential and commercial buildings to improve the comfort of the ambient temperature.
[0003] When the air conditioning heat pump is used in winter, the condensed water produced by the evaporator of the outdoor unit will be discharged through the drain port of the outdoor unit chassis. Due to the low outdoor temperature, the condensed water will freeze on the chassis, affecting the use effect of the air conditioning heat pump. The current solution to the above problem is to install an electric heating belt on the chassis for heating, so as to prevent the condensed water from freezing on the chassis. However, the electric heating belt needs to be powered on for a long time, which increases the energy consumption of the air conditioning heat pump. In addition, the electric heating belt that runs for a long time may age and break, posing a safety hazard. Utility Model Content
[0004] To this end, the technical problem to be solved by the utility model is to overcome the prior art method of preventing the outdoor unit chassis of the air-conditioning heat pump from freezing by setting an electric heating belt, but the electric heating belt needs to be powered on for a long time, which increases the energy consumption of the air-conditioning heat pump, and the electric heating belt that runs for a long time may age and break, posing a safety hazard.
[0005] In order to solve the above technical problems, the utility model provides an air conditioning heat pump system, comprising:
[0006] A four-way valve, the four-way valve comprising a first interface, a second interface, a third interface and a fourth interface;
[0007] A compressor, wherein the exhaust end of the compressor is connected to the first interface, and the suction end of the compressor is connected to the second interface;
[0008] an indoor unit, one end of which is connected to the third interface, and the other end of which is connected to the first pipeline;
[0009] an outdoor unit, one end of the outdoor unit being connected to the fourth interface, and the other end being connected to an end of the first pipeline away from the indoor unit, the outdoor unit being connected to a chassis, the first pipeline comprising a heating section passing through the chassis, and the first pipeline being provided with a first one-way valve located between the heating section and the outdoor unit;
[0010] The second pipeline has two ends connected to the first pipeline respectively, the heating section and the first one-way valve are located between the two connection points of the second pipeline and the first pipeline, and the second one-way valve is arranged on the second pipeline.
[0011] In one embodiment of the present invention, one end of the indoor unit away from the first pipeline is connected to the third interface through a third pipeline, and one end of the outdoor unit away from the first pipeline is connected to the fourth interface through a fourth pipeline.
[0012] In one embodiment of the present invention, the first pipeline, the second pipeline, the third pipeline and the fourth pipeline are all copper pipes.
[0013] In one embodiment of the present invention, the heating section is coiled and in contact with the bottom plate.
[0014] In one embodiment of the utility model, an expansion valve is provided on a section of the first pipeline close to the outdoor unit.
[0015] In one embodiment of the present invention, a control unit is further included, and the control unit is respectively connected to the compressor, the four-way valve, the indoor unit, the outdoor unit and the expansion valve.
[0016] In one embodiment of the present invention, the expansion valve is an electronic expansion valve.
[0017] In one embodiment of the present invention, the conducting direction of the first one-way valve is opposite to the conducting direction of the second one-way valve.
[0018] In one embodiment of the present invention, the exhaust end of the compressor is connected to the first interface through an exhaust pipeline, and the intake end of the compressor is connected to the second interface through an intake pipeline.
[0019] The above technical solution of the utility model has the following advantages compared with the prior art:
[0020] The utility model discloses an air conditioning heat pump system, comprising a four-way valve; a compressor, two ends of which are respectively connected to the four-way valve; an indoor unit, one end of which is connected to the four-way valve, and the other end is connected to a first pipeline; an outdoor unit, one end of which is connected to the four-way valve, and the other end is connected to an end of the first pipeline away from the indoor unit, the outdoor unit is connected to a chassis, the first pipeline includes a heating section passing through the chassis and a first one-way valve is arranged on the first pipeline; a second pipeline, two ends of which are respectively connected to the first pipeline, and a second one-way valve is arranged on the second pipeline. The utility model air conditioning heat pump system, in the heating cycle, makes the circulation pipeline pass through the chassis instead of the original electric heating belt, and uses the high-temperature refrigerant circulating in the air conditioning heat pump to heat the chassis, which can not only avoid the chassis from freezing in a low temperature environment, but also reduce energy consumption; and because the high-temperature refrigerant will be lower in temperature after passing through the chassis, the supercooling degree of the air conditioning heat pump system can be greater, which is conducive to increasing the heating amount and reducing energy consumption, and also avoids the potential safety hazards that may occur when the electric heating belt is in a long-term operation state. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein
[0022] Figure 1 It is a schematic diagram of the overall structure of the air conditioning heat pump system of the preferred embodiment of the utility model;
[0023] Figure 2 It is a structural schematic diagram of a four-way valve of an air conditioning heat pump system of a preferred embodiment of the utility model;
[0024] Figure 3 It is a structural schematic diagram of a compressor of an air-conditioning heat pump system in a preferred embodiment of the utility model.
[0025] Explanation of the markings in the specification: 1. Four-way valve; 11. First interface; 12. Second interface; 13. Third interface; 14. Fourth interface; 2. Compressor; 21. Exhaust end; 22. Intake end; 3. Indoor unit; 4. First pipeline; 41. Heating section; 42. First non-return valve; 5. Outdoor unit; 6. Second pipeline; 61. Second non-return valve; 7. Third pipeline; 8. Fourth pipeline; 9. Expansion valve. DETAILED DESCRIPTION
[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.
[0027] Embodiment 1
[0028] Reference Figure 1 , Figure 2 and Figure 3 As shown, an air conditioning heat pump system of the utility model comprises:
[0029] A four-way valve 1, the four-way valve 1 comprises a first interface 11, a second interface 12, a third interface 13 and a fourth interface 14;
[0030] A compressor 2, wherein an exhaust end 21 of the compressor 2 is connected to the first interface 11, and an intake end 22 of the compressor 2 is connected to the second interface 12;
[0031] An indoor unit 3, one end of the indoor unit 3 is connected to the third interface 13, and the other end is connected to the first pipeline 4;
[0032] The outdoor unit 5 has one end connected to the fourth interface 14, and the other end connected to the end of the first pipeline 4 away from the indoor unit 3. The outdoor unit 5 is connected to a chassis. The first pipeline 4 includes a heating section 41 passing through the chassis, and a first check valve 42 is provided on the first pipeline 4 between the heating section 41 and the outdoor unit 5.
[0033] The second pipeline 6 has two ends connected to the first pipeline 4 respectively, the heating section 41 and the first one-way valve 42 are located between the two connection points of the second pipeline 6 and the first pipeline 4, and the second pipeline 6 is provided with a second one-way valve 61.
[0034] Specifically, the input end of the first one-way valve 42 is the end close to the indoor unit 3 , and the output end is the end close to the outdoor unit 5 ; the input end of the second one-way valve 61 is the end close to the outdoor unit 5 , and the output end is the end close to the indoor unit 3 .
[0035] Working process: During summer cooling, the refrigerant passes through the exhaust end 21 of the compressor 2, the four-way valve 1, the outdoor unit 5, the electronic expansion valve, the second pipeline 6 (and the second one-way valve 61 on the second pipeline 6), the indoor unit 3 and the suction end 22 of the compressor 2 in sequence to complete a refrigeration cycle; during the above refrigeration cycle, due to the action of the first one-way valve 42, the refrigerant does not pass through the heating section 41, which can reduce its cooling loss.
[0036] During winter heating, the refrigerant passes through the exhaust end 21 of the compressor 2, the four-way valve 1, the indoor unit 3, the heating section 41 (chassis), the first one-way valve 42, the electronic expansion valve, the outdoor unit 5 and the suction end 22 of the compressor 2 in sequence to complete a heating cycle; during the above heating cycle, due to the second one-way valve 61, the refrigerant will flow through the heating section 41 of the first pipeline 4, and the high-temperature and high-pressure refrigerant will heat the chassis, which can prevent the condensed water on the chassis from freezing in the low temperature outdoor environment and causing poor drainage, thereby ensuring the stable operation of the equipment.
[0037] In summary, the air conditioning heat pump system heats the chassis by allowing high-temperature refrigerant to flow through the chassis, which can prevent the chassis from freezing in low-temperature outdoor environments in winter; and through the cooperation of the two one-way valves in the system, the air conditioning heat pump system can prevent the refrigerant from passing through the chassis when in the heating state, thereby reducing the loss of refrigerant cooling capacity.
[0038] The air-conditioning heat pump system of the utility model, in the heating cycle, makes the circulation pipeline (first pipeline 4) pass through the chassis area to replace the original electric heating belt, and utilizes the high-temperature refrigerant circulating in the air-conditioning heat pump system to heat the chassis, which can not only prevent the chassis from freezing in the outdoor low temperature environment, but also reduce energy consumption; and because the temperature of the high-temperature refrigerant will be lower after passing through the chassis, the supercooling degree of the air-conditioning heat pump system can be greater, which is beneficial to increase the heating capacity and reduce energy consumption.
[0039] Furthermore, one end of the indoor unit 3 away from the first pipeline 4 is connected to the third interface 13 through the third pipeline 7 , and one end of the outdoor unit 5 away from the first pipeline 4 is connected to the fourth interface 14 through the fourth pipeline 8 .
[0040] Furthermore, the first pipeline 4, the second pipeline 6, the third pipeline 7 and the fourth pipeline 8 are all copper pipes.
[0041] Further, the heating section 41 is arranged in a coil and in contact with the chassis. It is conceivable that the heating section 41 arranged in a coil can increase its contact area with the chassis, thereby achieving a better heating effect and preventing the chassis from freezing.
[0042] Furthermore, an expansion valve 9 is provided on the section of the first pipeline 4 close to the outdoor unit 5 .
[0043] Furthermore, it also includes a control unit, which is respectively connected to the compressor 2, the four-way valve 1, the indoor unit 3, the outdoor unit 5 and the expansion valve 9.
[0044] Furthermore, the expansion valve 9 is an electronic expansion valve, but is not limited to an electronic expansion valve, and may also be other throttling devices.
[0045] Furthermore, the conducting direction of the first one-way valve 42 is opposite to the conducting direction of the second one-way valve 61 .
[0046] Furthermore, the exhaust end 21 of the compressor 2 is connected to the first interface 11 through an exhaust pipeline, and the intake end 22 of the compressor 2 is connected to the second interface 12 through an intake pipeline.
[0047] Obviously, the above embodiments are only examples for clear explanation and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the invention of the utility model.
Claims
1. An air conditioning heat pump system, characterized in that: include: A four-way valve, the four-way valve comprising a first interface, a second interface, a third interface and a fourth interface; A compressor, wherein the exhaust end of the compressor is connected to the first interface, and the suction end of the compressor is connected to the second interface; an indoor unit, one end of which is connected to the third interface, and the other end of which is connected to the first pipeline; an outdoor unit, one end of the outdoor unit being connected to the fourth interface, and the other end being connected to an end of the first pipeline away from the indoor unit, the outdoor unit being connected to a chassis, the first pipeline comprising a heating section passing through the chassis, and the first pipeline being provided with a first one-way valve located between the heating section and the outdoor unit; The second pipeline has two ends connected to the first pipeline respectively, the heating section and the first one-way valve are located between the two connection points of the second pipeline and the first pipeline, and the second one-way valve is arranged on the second pipeline.
2. The air conditioning heat pump system according to claim 1, characterized in that: One end of the indoor unit away from the first pipeline is connected to the third interface through a third pipeline, and one end of the outdoor unit away from the first pipeline is connected to the fourth interface through a fourth pipeline.
3. The air conditioning heat pump system according to claim 2, characterized in that: The first pipeline, the second pipeline, the third pipeline and the fourth pipeline are all copper pipes.
4. The air conditioning heat pump system according to claim 1, characterized in that: The heating section is coiled and in contact with the bottom plate.
5. The air conditioning heat pump system according to claim 1, characterized in that: An expansion valve is provided on a section of the first pipeline close to the outdoor unit.
6. The air conditioning heat pump system according to claim 5, characterized in that: It also includes a control unit, which is respectively connected to the compressor, the four-way valve, the indoor unit, the outdoor unit and the expansion valve.
7. The air conditioning heat pump system according to claim 5, characterized in that: The expansion valve is an electronic expansion valve.
8. The air conditioning heat pump system according to claim 1, characterized in that: The conducting direction of the first one-way valve is opposite to the conducting direction of the second one-way valve.
9. The air conditioning heat pump system according to claim 1, characterized in that: The exhaust end of the compressor is connected to the first interface through an exhaust pipeline, and the intake end of the compressor is connected to the second interface through an intake pipeline.