CN216716400U - Air conditioner - Google Patents

Abstract

The present application relates to the technical field of home appliance manufacturing, and discloses an air conditioner. The air conditioner provided by the present application includes a refrigerant circulation pipeline, a four-way valve and a radiating pipe. The refrigerant circulation pipeline includes a compressor, an outdoor heat exchanger, a throttling element and an indoor heat exchanger in series. The heat pipe includes a first heat pipe and a second heat pipe. The first heat dissipation pipe is connected in parallel with the first communication line between the outdoor heat exchanger and the throttle element, and the second heat dissipation pipe is connected in parallel with the second communication line between the compressor air inlet and the four-way valve. The first heat pipe and the second heat pipe are in thermal contact. The air conditioner provided by the present application can utilize the integrated temperature adjustment of the high pressure section before the throttling element and the low pressure section after the throttling element to achieve the effect of anti-condensation when operating in a refrigeration condition.

Description

Air conditioner

technical field

The present application relates to the technical field of home appliance manufacturing, for example, to an air conditioner.

Background technique

At present, the application of frequency conversion air conditioners is becoming more and more common, and frequency conversion air conditioners add frequency conversion power devices to fixed frequency air conditioners. The frequency conversion power device is an important component in the frequency conversion air conditioner. It mainly adopts the multi-functional integrated high-power IPM frequency conversion control module to regulate the speed of the compressor, thereby saving energy consumption. The higher the compressor frequency, the more heat the IPM variable frequency control module generates. In high ambient temperature conditions, the aluminum fin radiator is limited to poor heat dissipation performance, and the IPM variable frequency control module has a large heating power, and the heat dissipation efficiency of the radiator is limited.

Inverter air conditioners usually use aluminum fins and single-channel refrigerant plates to cool the IPM inverter control module, and the heat dissipation performance is better under the dual action of aluminum fins and single-channel refrigerant plates.

In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art: for the traditional single-channel refrigerant plate solution, when the refrigerant flows through the refrigerant plate in the cooling condition, condensation will occur, and in the IPM frequency conversion control module Liquid water is generated, which short-circuits the IPM frequency conversion control module and causes damage to the IPM frequency conversion control module. Moreover, the existing traditional single-channel refrigerant plate solution cannot improve the superheat degree of the compressor air inlet.

Utility model content

In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended to be an extensive review, nor to identify key/critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

Embodiments of the present disclosure provide an air conditioner to solve the problem of condensation during the operation of the air conditioner.

In some embodiments, the air conditioner includes a refrigerant circulation line, a four-way valve and a heat dissipation pipe. The refrigerant circulation pipeline includes a compressor, an outdoor heat exchanger, a throttling element and an indoor heat exchanger in series. The heat pipe includes a first heat pipe and a second heat pipe. The first radiating pipe is connected in parallel with the first communication pipeline between the outdoor heat exchanger and the throttling element, the second radiating pipe is connected in parallel with the second communicating pipeline between the air inlet of the compressor and the four-way valve, the first radiating The pipe is in thermally conductive contact with the second heat pipe.

In some optional embodiments, the air conditioner further includes a plurality of valve bodies, and the plurality of valve bodies include a first valve body, a second valve body, a third valve body and a fourth valve body. Wherein, the first valve body is arranged on the first radiating pipe; the second valve body is arranged on the first communicating pipeline; the third valve body is arranged on the second communicating pipeline; and the fourth valve body is arranged on the second radiating pipe.

In some optional embodiments, the air conditioner further includes a control module configured to control opening or closing of the plurality of valve bodies.

In some optional embodiments, the control module is configured to control the opening or closing of a plurality of valve bodies, so that when the air conditioner operates in a cooling mode, the refrigerant flows through the compressor, the outdoor heat exchanger, the first heat pipe, the section flow element, indoor heat exchanger and second heat pipe.

In some optional embodiments, the control module is configured to control the opening or closing of a plurality of valve bodies, so that when the air conditioner operates in a cooling mode, the refrigerant flows through the compressor, the outdoor heat exchanger, the first heat pipe, the section The flow element, the indoor heat exchanger and the second communication line.

In some optional embodiments, the control module is configured to control the opening or closing of a plurality of valve bodies, so that when the air conditioner operates in a heating mode, the refrigerant flows through the compressor, the indoor heat exchanger, the throttling element, the first A communication line, an outdoor heat exchanger and a second communication line.

In some optional embodiments, the control module is configured to control the opening or closing of a plurality of valve bodies, so that when the air conditioner operates in a heating mode, the refrigerant flows through the compressor, the indoor heat exchanger, the throttling element, the first A communication pipeline, an outdoor heat exchanger and a second radiating pipe.

In some optional embodiments, the first valve body includes a first solenoid valve, or the conduction direction is limited to flow from the outdoor heat exchanger to the first one-way flow member of the throttle element through the first heat dissipation pipe. The second valve body includes a second solenoid valve, or the conducting direction is defined as a second one-way flow member that flows from the throttle element to the outdoor heat exchanger through the first communication line. The third valve body includes a third solenoid valve. The fourth valve body includes a fourth solenoid valve.

In some optional embodiments, the air conditioner further includes a base body, and the base body is in thermal contact with the frequency conversion module. Wherein, the first heat dissipation pipe includes a first heat dissipation section arranged in the base, and the second heat dissipation pipe includes a second heat dissipation section disposed in the base.

In some optional embodiments, the air conditioner further includes a first temperature sensor and a second temperature sensor. Wherein, the first temperature sensor is arranged on the exhaust port of the compressor, and the second temperature sensor is arranged on the base body.

The air conditioner provided by the embodiment of the present disclosure can achieve the following technical effects:

The air conditioner includes a refrigerant circulation pipeline, a four-way valve and a radiating pipe. The refrigerant circulation pipeline includes a compressor, an outdoor heat exchanger, a throttling element and an indoor heat exchanger in series. The heat pipe includes a first heat pipe and a second heat pipe. The first radiating pipe is connected in parallel with the first communication pipeline between the outdoor heat exchanger and the throttling element, the second radiating pipe is connected in parallel with the second communicating pipeline between the air inlet of the compressor and the four-way valve, the first radiating The pipe is in thermally conductive contact with the second heat pipe. When operating in the cooling condition, the refrigerant circulation pipeline flows through the first heat dissipation pipe and the second heat dissipation pipe, and the high pressure section before the throttling element and the low pressure section after the throttling element are used for integrated temperature regulation, so as to avoid the occurrence of excessively low temperature after throttling. At the same time, in the air conditioner provided by the embodiment of the present disclosure, the second heat dissipation pipe is connected in parallel with the second communication pipeline between the air inlet of the compressor and the four-way valve, which improves the air conditioner of the compressor air inlet. The degree of superheat improves the energy efficiency of the heating cycle system.

The foregoing general description and the following description are exemplary and explanatory only and are not intended to limit the application.

Description of drawings

One or more embodiments are exemplified by the accompanying drawings, which are not intended to limit the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, The drawings do not constitute a limitation of scale, and in which:

1 is a schematic structural diagram of an air conditioner provided by an embodiment of the present disclosure;

2 is a schematic structural diagram of another air conditioner provided by an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of an air conditioner refrigeration working cycle according to an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of a cycle of an air conditioner under heating conditions provided by an embodiment of the present disclosure;

5 is a schematic diagram of another refrigeration working cycle of the air conditioner provided by the embodiment of the present disclosure;

6 is a schematic diagram of another heating working condition cycle of the air conditioner provided by an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of a partial structure of an air conditioner provided by an embodiment of the present disclosure.

Reference number:

1: Compressor; 2: Outdoor heat exchanger; 3: Throttle element; 4: Indoor heat exchanger; 5: Four-way valve; 6: First heat pipe; 7: Second heat pipe; 8: First valve 9: the second valve body; 10: the third valve body; 11: the fourth valve body; 12: the base body; 13: the fin assembly.

Detailed ways

In order to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, which are for reference only and are not intended to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, numerous details are provided to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

The terms "first", "second" and the like in the description and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances for the purposes of implementing the embodiments of the disclosure described herein. Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover non-exclusive inclusion.

In the embodiments of the present disclosure, the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. are based on the orientations shown in the drawings or Positional relationship. These terms are primarily used to better describe the embodiments of the present disclosure and embodiments thereof, and are not intended to limit the fact that the indicated device, element, or component must have a particular orientation, or be constructed and operated in a particular orientation. In addition, some of the above-mentioned terms may be used to express other meanings besides orientation or positional relationship. For example, the term "on" may also be used to express a certain attachment or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific situations.

In addition, the terms "arranged", "connected" and "fixed" should be construed broadly. For example, "connection" may be a fixed connection, a detachable connection, or a unitary construction; it may be a mechanical connection, or an electrical connection; it may be a direct connection, or an indirect connection through an intermediary, or two devices, elements or Internal connectivity between components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific situations.

Unless stated otherwise, the term "plurality" means two or more.

In this embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an "or" relationship. For example, A/B means: A or B.

The term "and/or" is an associative relationship describing objects, indicating that three relationships can exist. For example, A and/or B, means: A or B, or, A and B three relationships.

It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments may be combined with each other in the case of no conflict.

1-7, an embodiment of the present disclosure provides an air conditioner.

The air conditioner provided by the embodiment of the present disclosure includes a refrigerant circulation pipeline, a four-way valve 5 and a heat dissipation pipe. The refrigerant circulation pipeline includes a compressor 1 , an outdoor heat exchanger 2 , a throttling element 3 and an indoor heat exchanger 4 that are connected in series. The heat dissipation pipe includes a first heat dissipation pipe 6 and a second heat dissipation pipe 7 . The first radiating pipe 6 is connected in parallel with the first communication pipeline between the outdoor heat exchanger 2 and the throttling element 3 , and the second radiating pipe 7 is connected in parallel with the second communication between the air inlet of the compressor 1 and the four-way valve 5 . The pipeline, the first heat dissipation pipe 6 and the second heat dissipation pipe 7 are in thermal contact with each other. When the air conditioner is operating in the cooling condition, the refrigerant flows through the compressor 1 , the outdoor heat exchanger 2 , the first radiating pipe 6 , the throttling element 3 , the indoor heat exchanger 4 and the second radiating pipe 7 in sequence. When the air conditioner is operating under the heating condition, the refrigerant flows through the compressor 1, the indoor heat exchanger 4, the throttling element 3, the first communication line, the outdoor heat exchanger 2 and the second communication line in sequence, and does not flow through the first communication line. A heat dissipation pipe 6 and a second heat dissipation pipe 7 .

When the air conditioner is operating in the cooling condition, the first heat pipe 6 is located in the high pressure section before the throttle element 3, and the temperature of the internal refrigerant is relatively high, about 40°C. lower, about 20°C. The air conditioner with dual cooling pipes utilizes the integrated temperature adjustment of the front high pressure section of the throttling element 3 and the rear low pressure section of the throttling element 3. While realizing the cooling and cooling of the inverter module, the pipeline of the high pressure section before the throttling element 3 and the throttling element 3 The heat exchange is realized between the pipelines in the rear low pressure section. In the cooling condition, the low pressure section after the throttling element 3 can increase the subcooling degree of the refrigerant before the throttling element 3, thereby improving the cooling effect of the system. When the air conditioner is operating in the heating condition, in order to prevent the low-temperature and low-pressure refrigerant from flowing through the refrigerant circulation pipeline, condensation will occur, and considering that the outdoor temperature of the air conditioner is low during the heating operation, the refrigerant circulation pipeline does not flow through the first. The first heat dissipation pipe 6 and the second heat dissipation pipe 7 only rely on the independent heat dissipation module for forced air cooling to dissipate heat to the frequency conversion module.

Optionally, the air conditioner further includes a plurality of valve bodies, and the plurality of valve bodies include a first valve body 8 , a second valve body 9 , a third valve body 10 and a fourth valve body 11 . The first valve body 8 is arranged in the first heat pipe 6; the second valve body 9 is arranged in the first communication pipeline; the third valve body 10 is arranged in the second communication pipeline; the fourth valve body 11 is arranged in the second communication pipeline Heat pipe 7. When operating under heating or cooling conditions, the refrigerant can flow through different pipelines by adjusting the opening or closing of the valve bodies of different pipelines.

In the cooling condition, the second valve body 9 and the third valve body 10 are closed, and the first valve body 8 and the fourth valve body 11 are opened. Under the action of the four valve bodies, the refrigerant flows through the first heat dissipation pipe 6 and the second heat dissipation pipe 7, and the refrigerant flowing through the first heat dissipation pipe 6 is the medium and high temperature refrigerant after being discharged by the compressor 1 and condensed by the outdoor heat exchanger 2 The refrigerant flowing through the second heat dissipation pipe 7 is the low temperature refrigerant discharged after the indoor heat exchanger 4 evaporates and absorbs heat, wherein the temperature of the medium and high temperature refrigerant is about 40°C, and the temperature of the low temperature refrigerant is about 20°C. Through the integrated heat regulation of the first heat dissipation pipe 6 and the second heat dissipation pipe 7, the integrated temperature can effectively dissipate heat for the frequency conversion module, and at the same time, prevent the occurrence of condensation problems. In addition, the heat exchange between the first heat dissipation pipe 6 and the second heat dissipation pipe 7 can be realized while the heat dissipation and cooling are carried out, and the low-temperature refrigerant after the throttling element 3 can increase the subcooling degree of the refrigerant before the throttling element 3. Thereby improving the cooling effect of the air conditioner and playing the role of a regenerator. At the same time, in order to prevent condensation when the temperature of the frequency conversion module is too low, the fourth valve body 11 can be closed and the third valve body 10 can be opened.

In the heating condition, the second valve body 9 and the third valve body 10 are opened, the first valve body 8 and the fourth valve body 11 are closed, the first heat dissipation pipe 6 and the second heat dissipation pipe 7 are short-circuited and no refrigerant flows through . When the air conditioner is operating in the heating condition, in order to prevent the low-temperature and low-pressure refrigerant from flowing through the refrigerant circulation pipeline, condensation will occur, and considering that the outdoor temperature of the air conditioner is low during the heating operation, the refrigerant circulation pipeline does not flow through the first. The first heat dissipation pipe 6 and the second heat dissipation pipe 7 only rely on the independent heat dissipation module for forced air cooling to dissipate heat to the frequency conversion module. At the same time, the third valve body 10 can be closed and the fourth valve body 11 can be opened under the condition that the temperature of the frequency conversion module is kept in a safe range. The frequency conversion module is used to heat the second radiating pipe 7 , and while cooling the frequency conversion module, the superheat degree of the air inlet of the compressor 1 is improved, thereby improving the energy efficiency of the heating cycle system.

Optionally, the air conditioner further includes a control module configured to control opening or closing of the plurality of valve bodies. Through the control module, the air conditioner is controlled to operate in a cooling or heating mode. When the air conditioner operates in the cooling condition, the control module is configured to control the second valve body 9 and the third valve body 10 to close, and the first valve body 8 and the fourth valve body 11 to open; when the air conditioner operates in the heating condition, control the The module is configured to control the second valve body 9 and the third valve body 10 to open and the first valve body 8 and the fourth valve body 11 to close. In the cooling condition, the integrated temperature of the first heat dissipation pipe 6 and the second heat dissipation pipe 7 is used to adjust the temperature. The integrated temperature can effectively dissipate heat for the frequency conversion module, and at the same time, prevent the occurrence of condensation problems. In addition, the radiator can achieve heat exchange between the first heat pipe 6 and the second heat pipe 7 while dissipating and cooling, and the low-temperature refrigerant behind the throttling element 3 can increase the supercooling of the refrigerant before the throttling element 3. to improve the cooling effect of the air conditioner. In the heating condition, in order to prevent the low-temperature and low-pressure refrigerant from flowing through the refrigerant circulation pipeline, condensation will occur, and considering the low outdoor temperature of the air conditioner in the heating condition, the refrigerant circulation pipeline does not flow through the first cooling pipe. 6 and the second heat pipe 7.

Optionally, the control module is configured to control the opening or closing of a plurality of valve bodies, so that when the air conditioner operates in a refrigeration condition, the refrigerant flows through the compressor 1, the outdoor heat exchanger 2, the first heat pipe 6, the throttle body in sequence, and the Element 3 , indoor heat exchanger 4 and second cooling pipe 7 . Compared with the traditional refrigerant circulation circuit, under the cooling condition of the air conditioner, if the heat pipe is located in front of the throttling element 3 and behind the outdoor heat exchanger 2, the temperature of the refrigerant is higher. When the temperature is higher than 43°C, the heat dissipation requirement of the inverter module cannot be met, resulting in the overheating of the inverter module and forcing the compressor 1 to reduce the frequency for cooling, thereby reducing the cooling effect of the compressor 1 system. The subcooling degree of the refrigerant before the flow element 3 is reduced, and the reduction of the subcooling degree affects the cooling capacity of the evaporator after the throttling element 3; Condensation problems occur, and there is a risk of short circuit burning of the circuit board.

This scheme adopts dual refrigerant circulation paths. The refrigerant in the first heat dissipation pipe 6 is the medium and high temperature refrigerant flowing out from the outdoor heat exchanger 2, and the refrigerant in the second heat dissipation pipe 7 is the low temperature refrigerant flowing out from the indoor heat exchanger 4. The temperature of the high temperature refrigerant is about 40°C, and the temperature of the low temperature refrigerant is about 20°C. Through the integrated heat regulation of the first heat dissipation pipe 6 and the second heat dissipation pipe 7, the integrated temperature can effectively dissipate heat for the frequency conversion module, and at the same time, prevent the occurrence of condensation problems. In addition, the radiator can achieve heat exchange between the first heat pipe 6 and the second heat pipe 7 while dissipating and cooling, and the low-temperature refrigerant behind the throttling element 3 can increase the supercooling of the refrigerant before the throttling element 3. It can improve the cooling effect of the air conditioner and play the role of a regenerator.

Optionally, the control module is configured to control the opening or closing of a plurality of valve bodies, so that when the air conditioner operates in a refrigeration condition, the refrigerant flows through the compressor 1, the outdoor heat exchanger 2, the first heat pipe 6, the throttle body in sequence, and the Element 3, indoor heat exchanger 4 and second communication pipeline. When the temperature of the frequency conversion module is too low, in order to prevent condensation, a plurality of valve bodies are controlled so that the low-temperature refrigerant flowing out of the indoor heat exchanger 4 does not flow through the second heat dissipation pipe 7 . The second radiating pipe 7 is short-circuited, and the refrigerant flows directly into the compressor 1 from the indoor heat exchanger 4 through the second communication pipeline. Through the integrated heat regulation of the first heat dissipation pipe 6 and the second heat dissipation pipe 7, the integrated temperature can effectively dissipate heat for the frequency conversion module, and at the same time, prevent the occurrence of condensation problems. In addition, the radiator can achieve heat exchange between the first heat pipe 6 and the second heat pipe 7 while dissipating and cooling, and the low-temperature refrigerant behind the throttling element 3 can increase the supercooling of the refrigerant before the throttling element 3. to improve the cooling effect of the air conditioner.

Optionally, the control module is configured to control the opening or closing of a plurality of valve bodies, so that when the air conditioner operates in the heating mode, the refrigerant flows through the compressor 1, the indoor heat exchanger 4, the throttling element 3, the first The communication pipeline, the outdoor heat exchanger 2 and the second communication pipeline. When the air conditioner is operating in the heating condition, in order to prevent the low-temperature and low-pressure refrigerant from flowing through the refrigerant circulation pipeline, condensation will occur, and considering that the outdoor temperature of the air conditioner is low during the heating operation, the refrigerant circulation pipeline does not flow through the first. The first heat dissipation pipe 6 and the second heat dissipation pipe 7 only rely on heat dissipation components, such as the fin assembly 13, to cool the frequency conversion module by forced air cooling.

Optionally, the control module is configured to control the opening or closing of a plurality of valve bodies, so that when the air conditioner operates in the heating mode, the refrigerant flows through the compressor 1, the indoor heat exchanger 4, the throttling element 3, the first Connect the pipeline, the outdoor heat exchanger 2 and the second radiating pipe 7 . Under the condition of ensuring that the temperature of the frequency conversion module is within a safe range, the frequency conversion module is used to heat the second heat dissipation pipe 7, while cooling the frequency conversion module, the superheat degree of the air inlet of the compressor 1 is improved, thereby improving the heating cycle system. efficiency.

Optionally, the first valve body 8 includes a first solenoid valve, or the conduction direction is limited to flow from the outdoor heat exchanger 2 to the first one-way flow member of the throttle element 3 through the first radiating pipe 6 . The second valve body 9 includes a second solenoid valve, or the conduction direction is defined as a second one-way flow member that flows from the throttle element 3 to the outdoor heat exchanger 2 through the first communication line. The third valve body 10 includes a third solenoid valve. The fourth valve body 11 includes a fourth solenoid valve.

Optionally, the first valve body 8 , the second valve body 9 , the third valve body 10 and the fourth valve body 11 are respectively configured as a first solenoid valve, a second solenoid valve, a third solenoid valve and a fourth solenoid valve.

In the cooling condition, the second solenoid valve and the third solenoid valve are closed, and the first solenoid valve and the fourth solenoid valve are opened. Under the action of the four solenoid valves, the refrigerant flows through the first heat dissipation pipe 6 and the second heat dissipation pipe 7, and the refrigerant flowing through the first heat dissipation pipe 6 is the medium and high temperature refrigerant after being discharged by the compressor 1 and condensed by the outdoor heat exchanger 2 The refrigerant flowing through the second heat dissipation pipe 7 is the low temperature refrigerant discharged after the indoor heat exchanger 4 evaporates and absorbs heat, wherein the temperature of the medium and high temperature refrigerant is about 40°C, and the temperature of the low temperature refrigerant is about 20°C. Through the integrated heat regulation of the first heat dissipation pipe 6 and the second heat dissipation pipe 7, the integrated temperature can effectively dissipate heat for the frequency conversion module, and at the same time, prevent the occurrence of condensation problems. In addition, the heat exchange between the first heat dissipation pipe 6 and the second heat dissipation pipe 7 can be realized while the heat dissipation and cooling are carried out, and the low-temperature refrigerant after the throttling element 3 can increase the subcooling degree of the refrigerant before the throttling element 3. Thereby improving the cooling effect of the air conditioner and playing the role of a regenerator. At the same time, in order to prevent condensation when the temperature of the frequency conversion module is too low, the fourth solenoid valve can be closed and the third solenoid valve can be opened.

In the heating mode, the second solenoid valve and the third solenoid valve are opened, the first solenoid valve and the fourth solenoid valve are closed, and the first radiating pipe 6 and the second radiating pipe 7 are short-circuited and no refrigerant flows through. When the air conditioner is operating in the heating condition, in order to prevent the low-temperature and low-pressure refrigerant from flowing through the refrigerant circulation pipeline, condensation will occur, and considering that the outdoor temperature of the air conditioner is low during the heating operation, the refrigerant circulation pipeline does not flow through the first. The first heat dissipation pipe 6 and the second heat dissipation pipe 7 only rely on the independent heat dissipation module for forced air cooling to dissipate heat to the frequency conversion module. At the same time, under the condition of ensuring that the temperature of the frequency conversion module is within a safe range, the third solenoid valve can be closed and the fourth solenoid valve can be opened. The frequency conversion module is used to heat the second radiating pipe 7 , and while cooling the frequency conversion module, the superheat degree of the air inlet of the compressor 1 is improved, thereby improving the energy efficiency of the heating cycle system.

Optionally, the first valve body 8 and the second valve body 9 are respectively set as the first one-way valve and the second one-way valve, and the third valve body 10 and the fourth valve body 11 are respectively set as the third solenoid valve and the first one-way valve. Four solenoid valves. Wherein, the conduction direction of the first one-way valve is limited to flow from the outdoor heat exchanger 2 to the throttle element 3 ; the conduction direction of the second one-way valve is defined to flow from the throttle element 3 to the outdoor heat exchanger 2 .

In the cooling condition, the second one-way valve and the third solenoid valve are closed, and the first one-way valve and the fourth solenoid valve are opened. The refrigerant flows through the first heat dissipation pipe 6 and the second heat dissipation pipe 7. The refrigerant flowing through the first heat dissipation pipe 6 is the medium and high temperature refrigerant after being discharged by the compressor 1 and condensed by the outdoor heat exchanger 2, and flows through the second heat dissipation pipe 7. The refrigerant is the low-temperature refrigerant discharged from the indoor heat exchanger 4 after evaporating and absorbing heat. The temperature of the medium and high temperature refrigerant is about 40°C, and the temperature of the low-temperature refrigerant is about 20°C. Through the integrated heat regulation of the first heat dissipation pipe 6 and the second heat dissipation pipe 7, the integrated temperature can effectively dissipate heat for the frequency conversion module, and at the same time, prevent the occurrence of condensation problems. In addition, the heat exchange between the first heat dissipation pipe 6 and the second heat dissipation pipe 7 can be realized while the heat dissipation and cooling are carried out, and the low-temperature refrigerant after the throttling element 3 can increase the subcooling degree of the refrigerant before the throttling element 3. Thereby improving the cooling effect of the air conditioner and playing the role of a regenerator. At the same time, in order to prevent condensation when the temperature of the frequency conversion module is too low, the fourth solenoid valve can be closed and the third solenoid valve can be opened.

In the heating mode, the second one-way valve and the third solenoid valve are opened, the first one-way valve and the fourth solenoid valve are closed, and the first radiating pipe 6 and the second radiating pipe 7 are short-circuited and no refrigerant flows through. When the air conditioner is operating in the heating condition, in order to prevent the low-temperature and low-pressure refrigerant from flowing through the refrigerant circulation pipeline, condensation will occur, and considering that the outdoor temperature of the air conditioner is low during the heating operation, the refrigerant circulation pipeline does not flow through the first. The first heat dissipation pipe 6 and the second heat dissipation pipe 7 only rely on the independent heat dissipation module for forced air cooling to dissipate heat to the frequency conversion module. At the same time, under the condition of ensuring that the temperature of the frequency conversion module is within a safe range, the third solenoid valve can be closed and the fourth solenoid valve can be opened. The frequency conversion module is used to heat the second radiating pipe 7 , and while cooling the frequency conversion module, the superheat degree of the air inlet of the compressor 1 is improved, thereby improving the energy efficiency of the heating cycle system.

Optionally, the air conditioner further includes a base body 12, and the base body 12 is in thermal contact with the frequency conversion module. The first heat dissipation pipe 6 includes a first heat dissipation section disposed in the base body 12 , and the second heat dissipation pipe 7 includes a second heat dissipation section disposed in the base body 12 . The heat of the different temperature refrigerants in the first heat dissipation section and the second heat dissipation section is conducted to the base body 12, and the base body 12 is in contact with the frequency conversion module for heat exchange. It can be blended on the base body 12 and has the effect of preventing condensation.

Optionally, the side of the base body 12 is connected to a frequency conversion module, such as a frequency conversion chip or an integrated module. The base body 12 and the frequency conversion module can be connected by screws, bolts, can be welded, and can also be bonded by thermally conductive silica gel. In this way, the base body 12 and the frequency conversion module are in close contact with each other, and the heat exchange efficiency is improved.

Optionally, the air conditioner further includes a fin assembly 13 . The fin assembly 13 includes a plurality of heat dissipation fins, and the plurality of heat dissipation fins are located on the surface of the base body 12 . When the air conditioner operates in a cooling condition, the first heat dissipation pipe 6 and the second heat dissipation pipe 7 combine with the fin assembly 13 to perform efficient air cooling to enhance heat dissipation, so that the air conditioner has better heat dissipation performance under high ambient temperature conditions. When the air conditioner operates in the heating mode, it only relies on the fin assembly 13 for air cooling and heat dissipation.

Optionally, the plurality of cooling fins of the air conditioner are arranged at intervals and are all perpendicular to the base body 12 . Relying on the air extraction of the flow fan, the wind can flow along the fin array from the side, thereby realizing forced convection heat dissipation.

Optionally, the plurality of heat dissipation fins of the fin assembly 13 are straight fins or corrugated fins. The heat dissipation fins may be provided with louvers, which are opened at intervals along the length direction of the heat dissipation fins. It can effectively enhance the disturbance of the air flow, improve the heat transfer coefficient on the air side, and is conducive to the conduction of heat.

Optionally, the fin assemblies 13 of the air conditioner may be folded fins or aluminum extruded fins, and the fins are welded or pasted on the lowermost side of the base body 12 for heat transfer. When installed in an air conditioner, under the synergy of the fans of the outdoor unit of the air conditioner, heat exchange is enhanced. The fin assemblies 13 can be selectively added or removed in the structure of the air conditioner according to the control piping scheme and heat dissipation requirements of the air conditioner.

Optionally, the base body 12 , the first heat pipe 6 , and the second heat pipe 7 are made of high thermal conductivity materials, for example, the base body 12 is made of aluminum, and the first heat pipe 6 and the second heat pipe 7 are made of copper. The heat dissipation performance of the high thermal conductivity material is better. The heat of the refrigerant is conducted to the base body 12 through the first heat dissipation section and the second heat dissipation section, and then to the fin assembly 13 through the base body 12, and then the fin assembly 13 conducts convection heat exchange with the air. , so that the heat is released into the air, and the heat dissipation effect is better.

Optionally, the first heat dissipation section and the second heat dissipation section may be horizontal flow channels or curved flow channels, which may be selected according to heat exchange requirements. The curved flow channel increases the flow resistance of the internal refrigerant, which is beneficial to improve the heat absorption efficiency and temperature uniformity of the substrate 12 .

Optionally, the inner wall of the first heat dissipation segment and/or the second heat dissipation segment is provided with internal threads. The inner thread can increase the heat exchange contact area between the refrigerant and the heat dissipation pipe, and can better conduct heat exchange. At the same time, from the perspective of cost, the small-diameter heat-dissipating pipe provided with the inner thread has lower cost and better heat-dissipating effect than the large-diameter heat-dissipating pipe.

Optionally, the outer walls of the first heat dissipation section and the second heat dissipation section have flat surfaces, for example, the first heat dissipation section and the second heat dissipation section are set as heat dissipation pipes with semicircular or flat interfaces, so as to increase the first heat dissipation section, the second heat dissipation section and the second heat dissipation section. The heat exchange area between the second heat dissipation section and the frequency conversion module improves the uniformity and heat dissipation effect.

Optionally, the air conditioner further includes a first temperature sensor and a second temperature sensor. Wherein, the first temperature sensor is arranged at the exhaust port of the compressor 1 , and the second temperature sensor is arranged at the base body 12 . The first temperature sensor and the second temperature sensor are used to monitor the temperature of the exhaust port of the compressor 1 and the inverter module. By monitoring the temperature during the operation of the air conditioner, the opening or closing of multiple valve bodies is adjusted to make the air conditioner temperature Always stay within a reasonable range.

Optionally, the control module can also adjust the opening degree of the throttle element 3 according to the temperature monitored by the first temperature sensor and the second temperature sensor. During the operation of the air conditioner, in order to prevent the condensation problem of the inverter module and the problem of burning out the inverter module due to overheating. The control module can determine whether the temperature of the first temperature sensor and the second temperature sensor exceeds a reasonable range, and the temperature can be kept within a reasonable range by controlling the opening of the throttling element 3 and the opening or closing of multiple valve bodies.

The foregoing description and drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples represent only possible variations. Unless expressly required, individual components and functions are optional and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. Embodiments of the present disclosure are not limited to the structures that have been described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. An air conditioner comprises a refrigerant circulating pipeline, a four-way valve (5) and a radiating pipe, and is characterized in that,

the refrigerant circulating pipeline comprises a compressor (1), an outdoor heat exchanger (2), a throttling element (3) and an indoor heat exchanger (4) which are sequentially connected in series;

the radiating pipes comprise first radiating pipes (6) and second radiating pipes (7), the first radiating pipes (6) are connected in parallel to a first communication pipeline between the outdoor heat exchanger (2) and the throttling element (3), and the second radiating pipes (7) are connected in parallel to a second communication pipeline between an air inlet of the compressor (1) and the four-way valve (5);

wherein the first radiating pipe (6) is in heat-conducting contact with the second radiating pipe (7).

2. The air conditioner of claim 1, further comprising a plurality of valve bodies, the plurality of valve bodies comprising:

the first valve body (8) is arranged on the first radiating pipe (6);

a second valve body (9) arranged on the first communication pipeline;

a third valve body (10) arranged on the second communication pipeline; and the combination of (a) and (b),

and the fourth valve body (11) is arranged on the second radiating pipe (7).

3. The air conditioner according to claim 2,

the first valve body (8) comprises a first electromagnetic valve or a first one-way circulation piece with a conduction direction defined to flow from the outdoor heat exchanger (2) to the throttling element (3),

the second valve body (9) comprises a second solenoid valve, or a second one-way flow passage with a communication direction defined from the throttling element (3) to the outdoor heat exchanger (2),

said third valve body (10) comprising a third solenoid valve, and,

the fourth valve body (11) comprises a fourth electromagnetic valve.

4. The air conditioner according to claim 2, further comprising:

a control module configured to control opening or closing of the plurality of valve bodies.

5. The air conditioner according to claim 4,

the control module is configured to control the plurality of valve bodies to be opened or closed, so that when the air conditioner operates in a refrigeration working condition, a refrigerant flows through the compressor (1), the outdoor heat exchanger (2), the first radiating pipe (6), the throttling element (3), the indoor heat exchanger (4) and the second radiating pipe (7) in sequence.

6. The air conditioner according to claim 4,

the control module is configured to control the plurality of valve bodies to be opened or closed, so that when the air conditioner operates in a refrigeration working condition, a refrigerant flows through the compressor (1), the outdoor heat exchanger (2), the first radiating pipe (6), the throttling element (3), the indoor heat exchanger (4) and the second communication pipeline in sequence.

7. The air conditioner according to claim 4,

the control module is configured to control the plurality of valve bodies to be opened or closed, so that when the air conditioner operates in a heating working condition, a refrigerant flows through the compressor (1), the indoor heat exchanger (4), the throttling element (3), the first communicating pipeline, the outdoor heat exchanger (2) and the second communicating pipeline in sequence.

8. The air conditioner according to claim 4,

the control module is configured to control the plurality of valve bodies to be opened or closed, so that when the air conditioner operates in a heating working condition, a refrigerant flows through the compressor (1), the indoor heat exchanger (4), the throttling element (3), the first communicating pipeline, the outdoor heat exchanger (2) and the second radiating pipe (7) in sequence.

9. The air conditioner according to claim 1, further comprising:

a base body (12), the base body (12) being in heat-conducting contact with the frequency conversion module,

wherein, first cooling tube (6) is including setting up in first heat dissipation section in base body (12), second cooling tube (7) is including setting up in the second heat dissipation section in the base body.

10. The air conditioner of claim 9, further comprising:

a first temperature sensor disposed at an exhaust port of the compressor (1); and the combination of (a) and (b),

and a second temperature sensor provided on the base (12).

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