Air conditioner

Abstract

The utility model provides an air conditioner, which comprises a steam compression refrigeration cycle system, the steam compression refrigeration cycle system is used for refrigeration and / or heating, the steam compression refrigeration cycle system comprises a compressor, an outdoor side heat exchanger, a throttling device and an indoor side heat exchanger, refrigerant circulates in the compressor, and when the steam compression refrigeration cycle system operates, the refrigerant circulates in the outdoor side heat exchanger. The indoor side heat exchanger is used for generating cold or heat; the indoor side heat exchanger comprises a refrigerant coil pipe, and the refrigerant coil pipe is used for being buried in at least one wall body of a floor, a ceiling and a side wall of a building so as to transmit the generated cold energy or heat to indoor environment air of the building through the floor, the ceiling and / or the side wall. The air conditioner solves the problem that when the air conditioner adjusts the indoor environment, cold and heat distribution at all positions of the indoor environment is not uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to an air conditioner. Background Art

[0002] Air conditioners are used to regulate indoor air, including adjusting the temperature, humidity, and air quality of the air, humidifying and dehumidifying the indoor air, introducing fresh air, etc. The air conditioner consists of an outdoor heat exchanger, an indoor heat exchanger, a compressor, a throttling device, and other necessary components to form a vapor compression refrigeration cycle system, which outputs cold / hot air through a fan to achieve cooling and heating of the indoor environment.

[0003] Household air conditioners are generally split-type air conditioners, which include an indoor unit and an outdoor unit. The compressor and the outdoor heat exchanger are set in the outdoor unit, and the indoor heat exchanger is set in the indoor unit. When the air conditioner is running, the indoor heat exchanger generates cold air, and the indoor air is sucked into the indoor unit through the fan in the indoor unit, and heat is exchanged with the indoor heat exchanger to form a heat exchange airflow (when the air conditioner is cooling, the heat exchange airflow is cold air, and when the air conditioner is heating, the heat exchange airflow is hot air), and then the heat exchange airflow is blown back to the indoor environment to adjust the indoor air.

[0004] However, the current air conditioning structure relies on fans to transport cold and hot air, which inevitably causes uneven distribution of cold and hot air in various parts of the room. In addition, cold or hot air blowing directly on the human body will cause discomfort to the human body and even cause air-conditioning disease. Utility Model Content

[0005] The purpose of the utility model is to provide an air conditioner which overcomes the above problems or at least partially solves the above problems.

[0006] The utility model aims to solve the problem of uneven distribution of heat and cold in various places of the indoor environment when the air conditioner adjusts the indoor environment.

[0007] Another purpose of the utility model is to solve the problem that when the air conditioner adjusts the indoor environment, the cold wind or hot wind directly blows on the human body, causing discomfort to the human body.

[0008] Another object of the present invention is to improve the energy efficiency of the air conditioner.

[0009] In order to solve at least one of the above technical problems, the utility model provides an air conditioner, which includes:

[0010] A vapor compression refrigeration cycle system, the vapor compression refrigeration cycle system is used for cooling and / or heating, the vapor compression refrigeration cycle system comprises a compressor through which a refrigerant flows, an outdoor heat exchanger, a throttling device and an indoor heat exchanger, when the vapor compression refrigeration cycle system is in operation, the indoor heat exchanger is used to generate cold or heat; and

[0011] The indoor heat exchanger includes a refrigerant coil, which is used to be buried inside at least one of the floor, ceiling and side walls of the building, so as to transfer the cold or heat generated by it to the indoor ambient air of the building through the floor, ceiling and / or side wall.

[0012] This allows the air conditioner to cool or heat the indoor environment through the indoor walls, making the distribution of cold and heat in the indoor environment more even, avoiding the problem of uneven distribution of cold and heat in the indoor environment caused by the traditional indoor unit blowing air through the fan.

[0013] Since the fan of the indoor unit is omitted, the cooling and heating of the indoor environment does not rely on cold air or hot air, which avoids the problem of cold air or hot air blowing directly on the human body and causing discomfort to the human body.

[0014] In addition, the indoor heat exchangers are distributed throughout the walls of the building, which makes the heat exchange area of ​​the indoor heat exchanger larger and the heat exchange amount larger, making the heat exchange efficiency of the indoor heat exchanger higher, thereby making the air conditioner more energy efficient.

[0015] Furthermore, the utility model makes the heat exchange efficiency of the indoor heat exchanger higher, the structure simpler and the cost lower.

[0016] Optionally, the refrigerant coil is used to be buried inside a plurality of walls of a building; and

[0017] The refrigerant coil includes a plurality of coil sections, and each of the coil sections is arranged inside one of the walls.

[0018] Optionally, the plurality of coil sections are connected in parallel, and the flow rate of each coil section is configured to be adjustable.

[0019] Optionally, the plurality of coil sections are connected in series.

[0020] Optionally, the refrigerant coil is used to be buried inside a plurality of walls; and

[0021] The diameters of the coil sections buried in the walls are not completely the same.

[0022] Optionally, the refrigerant coil is used to be buried inside the floor, the ceiling and the side wall; and

[0023] The pipe diameter of the coil section buried in the floor is smaller than the pipe diameter of the coil section buried in the ceiling.

[0024] Optionally, the refrigerant channel formed by the refrigerant coil is a circular channel.

[0025] Optionally, the refrigerant coil is made of metal pipe.

[0026] Optionally, the refrigerant coil is made of copper tube.

[0027] Optionally, heat dissipation fins are provided outside the refrigerant coil.

[0028] Optionally, the refrigerant channel is a hollow structure reserved during the molding process of the indoor heat exchanger.

[0029] Optionally, the refrigerant channel is a circular channel.

[0030] Optionally, the indoor heat exchanger includes one refrigerant channel, which includes an inlet and an outlet.

[0031] Optionally, the indoor heat exchanger is made of metal sheet.

[0032] Optionally, the indoor heat exchanger is made of aluminum plate.

[0033] Optionally, the indoor heat exchanger is used to be buried inside a plurality of walls of a building; and

[0034] The indoor heat exchanger includes a plurality of coil sections, and each of the coil sections is arranged inside one of the walls.

[0035] In this way, coil sections are buried in each wall of the room, which makes the cooling and heating of the indoor environment more uniform and makes the human body more comfortable.

[0036] Optionally, the plurality of coil sections are connected in parallel, and the flow rate of each coil section is configured to be adjustable.

[0037] In this way, the air conditioner can choose to enable or disable certain coil sections, or adjust the refrigerant flow of certain coil sections according to demand.

[0038] Optionally, the plurality of coil sections are connected in series.

[0039] The air conditioner of the utility model does not have a traditional indoor unit or an indoor fan. Instead, the indoor heat exchanger of the vapor compression refrigeration cycle system is configured as a refrigerant coil, and is buried inside at least one of the floor, ceiling and side walls of the building, so that the cold or heat generated by it is transferred to the indoor ambient air of the building through the floor, ceiling and / or side walls.

[0040] In this way, the air conditioner can cool or heat the indoor environment through the indoor walls, making the distribution of cold and heat in the indoor environment more even, avoiding the problem of uneven distribution of cold and heat in the indoor environment caused by the traditional indoor unit blowing air through the fan.

[0041] Furthermore, since the air conditioner of the utility model omits the fan of the indoor unit, the cooling and heating of the indoor environment do not rely on cold air or hot air, which avoids the problem of cold air or hot air blowing directly on the human body and causing discomfort to the human body.

[0042] In addition, the air conditioner of the present invention distributes the indoor heat exchanger at various places on the walls of the building, so that the heat exchange area of ​​the indoor heat exchanger is larger, the heat exchange amount is larger, and the heat exchange efficiency of the indoor heat exchanger is higher, thereby making the air conditioner more energy-efficient.

[0043] Finally, the air conditioner of the present invention omits the indoor unit and buries the indoor heat exchanger inside at least one of the floor, ceiling and side walls of the building, so that the indoor part of the air conditioner is completely hidden in the indoor environment, does not affect the decoration layout of the indoor environment, and makes the indoor environment more simple and beautiful.

[0044] Furthermore, in the air conditioner of the utility model, the indoor heat exchanger is used to be buried inside multiple walls of a building. The refrigerant coil of the indoor heat exchanger includes multiple coil sections, each of which is arranged inside a wall, so that each indoor wall is buried with a coil section, which makes the cooling and heating of the indoor environment more uniform and makes the human body more comfortable.

[0045] Furthermore, in the air conditioner of the present invention, multiple coil sections are connected in parallel, and the flow rate of each coil section is configured to be adjustable. In this way, the air conditioner can select to enable or disable certain coil sections, or adjust the refrigerant flow rate of certain coil sections according to demand.

[0046] For example, when the load of the air conditioner is large, all coil sections may be activated.

[0047] When the load of the air conditioner is light, some coil sections can be activated.

[0048] When the air conditioner is running in cooling mode, only the coil section inside the ceiling can be enabled or enabled in a focused manner. The cold air flow density is higher and has a downward trend, so the cold air on the roof can automatically diffuse downward to all indoor areas.

[0049] When the air conditioner runs in heating mode, only the coil section inside the floor can be enabled or enabled in a focused manner. The hot air flow density is smaller and has an upward trend, so the hot air near the floor can automatically diffuse upward to the entire indoor area.

[0050] According to the following text, some specific embodiments of the present invention will be described in more detail in combination with the accompanying drawings, and those skilled in the art will be more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-restrictive manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale.

[0052] In the attached figure:

[0053] Figure 1 is a schematic diagram of a vapor compression refrigeration cycle system of an air conditioner according to an embodiment of the utility model;

[0054] Figure 2 It is a schematic diagram of an indoor heat exchanger of an air conditioner according to an embodiment of the utility model when it is installed in the wall of a building;

[0055] Figure 3 yes Figure 2 Enlarged view of point A. DETAILED DESCRIPTION

[0056] Refer to the following Figures 1 to 3 The air conditioner of the utility model embodiment is introduced.

[0057] In the description of this embodiment, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the utility model.

[0058] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, it is defined that the features "first", "second", etc. may explicitly or implicitly include at least one of the features, that is, include one or more of the features.

[0059] In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically limited. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0060] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "coupled" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

[0061] Furthermore, in the description of this embodiment, a first feature being “above” or “below” a second feature may include the first and second features being in direct contact with each other, or the first and second features not being in direct contact with each other but being in contact with each other via another feature therebetween.

[0062] That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0063] Unless otherwise defined, all terms (including technical terms and scientific terms) used in the description of the embodiments of the present invention have the same meanings as those commonly understood by ordinary technicians in the technical field to which the present application belongs.

[0064] The embodiment of the utility model provides an air conditioner.

[0065] The embodiment of the utility model provides an air conditioner. The air conditioner is used to adjust the indoor air, including adjusting the temperature, humidity, air quality of the air, humidifying, dehumidifying, introducing fresh air, etc. The air conditioner can be composed of an evaporator, a condenser, a compressor, a throttling device and other necessary components to form a vapor compression refrigeration cycle system to achieve cooling and heating of the indoor environment.

[0066] Figure 1 Schematic diagram of a vapor compression refrigeration cycle system 30 of an air conditioner according to an embodiment of the present invention.

[0067] like Figure 1 As shown, the air conditioner according to the embodiment of the present invention may generally include a vapor compression refrigeration cycle system 30 .

[0068] The vapor compression refrigeration cycle system 30 is used for cooling and / or heating, and the vapor compression refrigeration cycle system 30 includes a compressor 31 through which a refrigerant flows, an outdoor heat exchanger 32 , a throttling device 33 , and an indoor heat exchanger 20 .

[0069] The compressor 31, the outdoor heat exchanger 32, the throttling device 33 and the indoor heat exchanger 20 are connected by pipelines to form a refrigerant circulation loop.

[0070] The compressor 31 is usually a rolling rotor compressor, a scroll compressor, etc., which is not limited in the present embodiment. The throttling device 33 may include a capillary tube and / or an electronic expansion valve.

[0071] It is understandable that, if necessary, the vapor compression refrigeration cycle system 30 may also include necessary components such as a drying filter, a gas-liquid separator, various control valves, etc., which are well known to those skilled in the art and will not be described in detail here.

[0072] In some embodiments of the present invention, the air conditioner can be a cooling-only type. In this regard, the indoor heat exchanger 20 can also be called an evaporator, and the outdoor heat exchanger 32 can also be called a condenser. When the air conditioner is running, the indoor heat exchanger 20 generates cold energy.

[0073] In other embodiments of the present invention, the air conditioner is a heat pump type, that is, it can both cool and heat. Thus, the vapor compression refrigeration cycle system 30 further includes a four-way valve (not shown) for switching the air conditioner between the cooling mode and the heating mode.

[0074] For the heat pump air conditioner, in cooling mode, the indoor heat exchanger 20 functions as an evaporator to generate cooling energy, and in heating mode, the indoor heat exchanger 20 functions as a condenser to generate heat.

[0075] In summary, when the vapor compression refrigeration cycle system 30 is in operation, the indoor heat exchanger 20 is used to generate cooling or heating.

[0076] Figure 2 It is a schematic diagram of an indoor heat exchanger 20 of an air conditioner according to an embodiment of the utility model when it is installed in the wall of a building; Figure 3 yes Figure 2 Enlarged view of point A.

[0077] In particular, if Figure 2 and Figure 3 As shown, in the embodiment of the utility model, the indoor heat exchanger 20 is used to be buried inside at least one of the floor 14, ceiling 11 and side walls 12, 13 of the building, so as to transfer the cold or heat generated by it to the indoor ambient air of the building through the floor 14, ceiling 11 and / or side walls 12, 13.

[0078] The side wall is a vertical wall. It is understandable that the number of the side wall is not necessarily one, and generally speaking, the number of the side walls is four.

[0079] Specifically, the indoor heat exchanger 20 may be buried in the floor 14 of the building, or buried only in the ceiling 11 , or buried only in the side walls 12 , 13 .

[0080] Alternatively, the indoor heat exchanger 20 may be used to be buried inside a plurality of walls among the floor 14 , the ceiling 11 , and the side walls 12 , 13 of the building.

[0081] The building described in the embodiment of the utility model can be a residential house or a commercial building. For example, during the decoration process of the building, the indoor heat exchanger 20 is first installed against the inner surface of the wall body 101, and then the subsequent wall decoration process is carried out to form the decorative layer 102, so that the indoor heat exchanger 20 is finally buried inside the wall.

[0082] Conventional air conditioners all use fans to blow cold or hot air into the indoor environment. The air conditioner in the embodiment of the utility model is not equipped with a traditional indoor unit, nor is an indoor fan. Instead, the indoor heat exchanger 20 of the vapor compression refrigeration cycle system 30 is configured in the form of a refrigerant coil 21, which is buried inside at least one of the floor 14, ceiling 11 and side walls 12, 13 of the building, so as to transfer the cold or heat generated by it to the indoor ambient air of the building through the floor 14, ceiling 11 and / or side walls 12, 13.

[0083] Of course, the air conditioner still includes an outdoor unit, in which the aforementioned outdoor heat exchanger 32, throttling device 33, compressor 31, and other components including an outdoor fan, a controller, etc. The outdoor unit can adopt an existing form, and its structure is well known to those skilled in the art, and will not be described in detail here.

[0084] In this way, the air conditioner can cool or heat the indoor environment through the indoor walls, making the distribution of cold and heat in the indoor environment more even, avoiding the problem of uneven distribution of cold and heat in the indoor environment caused by the traditional indoor unit blowing air through the fan.

[0085] Furthermore, since the air conditioner of the embodiment of the utility model omits the fan of the indoor unit, the cooling and heating of the indoor environment does not rely on cold air or hot air, which avoids the problem of cold air or hot air blowing directly on the human body and causing discomfort to the human body.

[0086] In addition, the air conditioner of the embodiment of the utility model distributes the indoor heat exchanger 20 at various locations on the wall of the building, so that the heat exchange area of ​​the indoor heat exchanger 20 is larger, the heat exchange amount is larger, and the heat exchange efficiency of the indoor heat exchanger 20 is higher, thereby making the air conditioner more energy efficient.

[0087] In the air conditioner of the embodiment of the utility model, the indoor heat exchanger 20 includes a refrigerant coil 21, and there is no need to set up structures such as an indoor fan, so that the cost of the air conditioner is lower.

[0088] Finally, the air conditioner in the embodiment of the utility model omits the indoor unit and buries the indoor heat exchanger 20 inside at least one of the floor 14, ceiling 11 and side walls 12, 13 of the building, so that the air conditioner is completely invisible in the indoor environment, does not affect the decoration layout of the indoor environment, and makes the indoor wall surface more tidy and beautiful.

[0089] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the indoor heat exchanger 20 is used to be buried inside multiple walls of a building. In addition, the refrigerant coil 21 includes multiple coil sections 201, 202, 203, 204, and each coil section 201, 202, 203, 204 is used to be set inside a wall.

[0090] For example, when the refrigerant coil 21 is buried inside the ceiling 11 and one of the side walls 12 , 13 , the refrigerant coil 21 includes two coil sections 201 , 203 .

[0091] When the refrigerant coil 21 is buried inside the ceiling 11 , the floor 14 , and the two side walls 12 , 13 , the refrigerant coil 21 includes four coil sections 201 , 202 , 203 , and 204 .

[0092] In the air conditioner of the embodiment of the utility model, the indoor heat exchanger 20 is used to be buried inside multiple walls of a building. The refrigerant coil 21 includes multiple coil sections 201, 202, 203, 204, and each coil section 201, 202, 203, 204 is arranged inside a wall, so that the coil sections 201, 202, 203, 204 are buried in each wall of the room, and the cooling and heating of the indoor environment are more uniform, making the human body more comfortable.

[0093] Furthermore, two adjacent coil sections 201, 202, 203, 204 may be integrally formed, such as Figure 2 .

[0094] Alternatively, two adjacent coil sections 201, 202, 203, 204 may be split structures and connected by external connecting pipes. Such an arrangement makes it more convenient to process, transport and install the indoor heat exchanger 20.

[0095] In some embodiments of the present invention, it is preferred that a plurality of coil sections 201 , 202 , 203 , 204 are connected in parallel, and the flow rate of each coil section 201 , 202 , 203 , 204 is configured to be adjustable.

[0096] Specifically, in some embodiments of the present invention, each coil section 201, 202, 203, 204 may be provided with a valve for adjusting the refrigerant flow rate of the coil section 201, 202, 203, 204 (including adjusting the flow rate to 0). The valve may be a solenoid valve. The specific selection of the valve is well known to those skilled in the art and will not be described in detail here.

[0097] In this way, the controller of the air conditioner can select to enable or disable certain coil sections 201 , 202 , 203 , 204 , or adjust the refrigerant flow of certain coil sections 201 , 202 , 203 , 204 according to the actual load demand of the air conditioner.

[0098] For example, when the cooling or heating load of the air conditioner is relatively large, all the coil sections 201 , 202 , 203 , and 204 may be activated.

[0099] When the cooling or heating load of the air conditioner is relatively small, some of the coil sections 201 , 202 , 203 , and 204 may be activated.

[0100] When the air conditioner is running in cooling mode, only the coil section 201 inside the ceiling 11 can be enabled or focused on, and the cold air flow density is higher and has a downward trend, so the cold air on the roof can automatically diffuse downward to all indoor areas.

[0101] When the air conditioner is running in heating mode, only the coil section 204 inside the floor 14 can be enabled or focused on. The hot air flow density is smaller and has an upward trend, so the hot air near the floor 14 can automatically diffuse upward to the entire indoor area.

[0102] Of course, in other embodiments of the present invention, multiple coil sections 201, 202, 203, 204 may also be connected in series.

[0103] Alternatively, in other embodiments of the present invention, the plurality of coil sections 201 , 202 , 203 , 204 may be connected in a combination of series and parallel connection.

[0104] In some embodiments of the utility model, the refrigerant coil 21 is used to be buried inside multiple walls. In addition, the diameters of the coil sections 201, 202, 203, and 204 buried inside each wall are not completely the same. Specifically, the diameter can be determined according to the actual heat load of each wall. The larger the wall with the greater heat load, the larger the diameter. The smaller the wall with the smaller heat load, the smaller the diameter.

[0105] For example, if the air conditioner is mainly used for cooling, the refrigerant coil 21 can be buried inside the floor 14, ceiling 11 and side walls 12 and 13. The diameter of the coil section 204 buried in the floor 14 is smaller than the diameter of the coil section 201 buried in the ceiling 11, so that the cooling capacity of the coil section 201 is larger, which is conducive to the cooling air to diffuse downward by its own gravity.

[0106] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the refrigerant channel of the refrigerant coil 21 is a circular channel. The purpose of such design is to facilitate processing, reduce processing costs, and reduce the resistance of refrigerant flow.

[0107] In some embodiments of the present invention, the refrigerant coil 21 is made of metal pipes, specifically copper pipes, which have a higher heat transfer coefficient and better heat transfer performance.

[0108] In some embodiments of the present invention, heat dissipation fins are disposed outside the refrigerant coil 21 to increase the heat exchange area and improve the heat exchange effect.

[0109] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

[0110] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. An air conditioner, characterized in that: include: A vapor compression refrigeration cycle system, the vapor compression refrigeration cycle system is used for cooling and / or heating, the vapor compression refrigeration cycle system comprises a compressor through which a refrigerant flows, an outdoor heat exchanger, a throttling device and an indoor heat exchanger, when the vapor compression refrigeration cycle system is in operation, the indoor heat exchanger is used to generate cold or heat; and The indoor heat exchanger includes a refrigerant coil, which is used to be buried inside each wall of the building including the floor, ceiling and side wall, so as to transfer the cold or heat generated by the refrigerant coil to the indoor ambient air of the building through the floor, ceiling and side wall; The refrigerant coil includes a plurality of coil sections, each of which is arranged inside one of the walls; the diameter of the coil section buried in the floor is smaller than the diameter of the coil section buried in the ceiling.

2. The air conditioner according to claim 1, characterized in that: The plurality of coil sections are connected in parallel, and the flow rate of each coil section is configured to be adjustable.

3. The air conditioner according to claim 1, characterized in that: The plurality of coil sections are connected in series.

4. The air conditioner according to claim 1, characterized in that: The refrigerant channel formed by the refrigerant coil is a circular channel.

5. The air conditioner according to claim 1, characterized in that: The refrigerant coil is made of metal pipe.

6. The air conditioner according to claim 5, characterized in that: The refrigerant coil is made of copper tube.

7. The air conditioner according to claim 1, characterized in that: The outside of the refrigerant coil is provided with heat dissipation fins.

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