Air conditioner

Abstract

The utility model provides an air conditioner, belongs to the field of air conditioner heat exchange, and relates to an air conditioner radiation heat supply device which comprises an evaporator, a radiation heat coil, a radiation heat dissipation plate and an indoor fan. A refrigeration air outlet is formed above the evaporator, and a radiation heat dissipation plate is arranged outside the evaporator; radiation heat coils are arranged on the surface of the inner wall of the radiation heat dissipation plate, the radiation heat coils are evenly distributed on the inner surface of the radiation heat dissipation plate back and forth in a bow shape, and a refrigerant flows through the interior of a pipeline of the radiation heat coils to conduct heat to the radiation heat dissipation plate. The problems that when the air conditioner operates in a heating mode, the wind blowing feeling is strong, the body feeling temperature is obviously lower than the actual indoor temperature, and the body feeling comfort degree of people is poor are solved. The heating body feeling of a user can be effectively improved, and the purposes of comfortable heating and energy saving are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air conditioner heat exchange, in particular to an air conditioner radiation heating device and air conditioner. BACKGROUND

[0002] In the heating mode of the heat pump type air conditioner, the traditional air conditioner indoor unit exchanges heat in the convection mode. The convection heat exchange has the advantages of fast heating speed. However, it has the disadvantage of strong wind blowing feeling, and the body temperature is obviously lower than the actual indoor temperature. In the heating operation, the personnel body comfort is poor. In the operation of the traditional air conditioner indoor unit, the indoor set temperature needs to be set at a high value, which is much higher than the set value of 18-22 degrees Celsius of the floor heating and heating radiators, which is not conducive to energy saving and environmental protection.

[0003] The existing patent ZL202221927050.0 "air conditioner radiation heating device and air conditioner" has a unique air duct design to realize the functions of heat pump heating, indoor unit radiation heating mode, and indoor unit radiation and convection combined heating mode. The present application realizes the above functions by adopting the indoor unit refrigerant multi-loop control mode. An air conditioner radiation heating device and air conditioner are proposed. CONTENT OF THE UTILITY MODEL

[0004] (I) Technical problem to be solved

[0005] The purpose of the present application is to provide an air conditioner radiation heating device and air conditioner to alleviate the problem of strong wind blowing feeling, the body temperature being obviously lower than the actual indoor temperature, and poor personnel body comfort in the heating operation of the air conditioner. The present application can effectively improve the heating body feeling of the user, and achieve the purposes of comfortable heating and energy saving.

[0006] (II) Technical scheme

[0007] In order to solve the above technical problems, the present application provides an air conditioner radiation heating device and air conditioner, which comprises an increased radiation heat coil design in the heat pump type air conditioner indoor unit, changes the heating mode of the air conditioner indoor unit, adds a radiation heating component to the air conditioner, and changes the heating mode of the air conditioner to "radiation and convection" two heating modes which can work simultaneously.

[0008] An air conditioner radiation heating device comprises an evaporator, a radiation heat coil, a radiation heat sink, and an indoor fan. The indoor fan is arranged below the evaporator. A refrigeration air outlet is arranged above the evaporator. The radiation heat sink is arranged outside the evaporator. The radiation heat coil is arranged on the inner wall surface of the radiation heat sink. The radiation heat coil is arranged in an arch shape and uniformly arranged in the inner surface of the radiation heat sink. The refrigerant flows through the internal pipeline of the radiation heat coil, and the heat is conducted to the radiation heat sink.

[0009] The heat radiation plate is insulated from the evaporator by an insulating material, which can be an ABS material air duct or a steel air duct covered with rubber insulation.

[0010] The outer surface of the radiation heat coil is provided with a measure to enhance heat conduction with the heat radiation plate, such as filling the outer surface of the radiation heat coil with a heat-conductive silicone grease.

[0011] The heat radiation plate is made of an anode aluminum plate or a steel plate. It can be punched into a reasonable shape to increase strength and expand the heat radiation surface area.

[0012] The indoor fan is a variable frequency fan, which can be adjusted to meet the different air volume requirements in the cooling and heating conditions.

[0013] The indoor unit of the heat pump air conditioner is designed as a floor type, a wall-hanging type, a ceiling embedded type or a floor embedded type. The present application includes but is not limited to the above installation methods.

[0014] An air conditioner includes a heat pump air conditioner indoor unit and a heat pump air conditioner outdoor unit connected by a refrigerant connecting pipe. The heat pump air conditioner indoor unit includes the above-mentioned air conditioner radiation heating device, which is provided with two parallel refrigerant pipelines. One pipeline is connected to the evaporator through a control valve A, and the other pipeline is connected to the radiation heat coil through a control valve B. The two pipelines are controlled by the control valves A and B, respectively. The two pipelines are in parallel and are combined into one pipeline. The combined pipeline is connected to the heat pump air conditioner outdoor unit.

[0015] The two pipelines are controlled by the control valves A and B, respectively. The two pipelines are in parallel and can be opened or closed by the control valves A and B, respectively.

[0016] One or more heat pump air conditioner indoor units are connected to one heat pump air conditioner outdoor unit.

[0017] The control valves A and B are selected from one of an electronic expansion valve, a one-way valve and an electronic one-way valve, which are not limited herein.

[0018] The heat pump air conditioner outdoor unit includes a compressor, an outdoor fan, a condenser and a four-way valve. The exhaust end of the compressor is connected to the high-pressure end of the four-way valve for controlling the flow direction of the refrigerant. The return end of the compressor is connected to the low-pressure end of the four-way valve. One passage of the four-way valve is connected to the inlet of the condenser. The outlet of the condenser is connected to the refrigerant pipeline of the heat pump air conditioner indoor unit. The outdoor fan is located at the rear end of the condenser and is connected to the heat dissipation air duct of the condenser. The outdoor fan is composed of an outdoor fan motor and an axial fan blade.

[0019] The utility model discloses the beneficial effect of:

[0020] 1, this patent indoor unit adopts the control of multiloop flow direction, realizes cold and warm dual -purpose, and the radiation heating mode and the radiation heating and the convection combined mode.

[0021] 2, this patent adds a set of radiation heat coil pipe design to air conditioner indoor unit, changes the heating mode of air conditioner indoor unit, adds the radiation heating component to air conditioner, and the component is made of high heat conduction material, and the special refrigerant pipe of heating is attached to its back, and the contact area is guaranteed to be large, and the heat conduction is good. Make the heating mode of air conditioner change into radiation and convection two heating modes. Make high temperature and high pressure refrigerant flow through the radiation heat coil pipe, and heat the outer surface heat radiation plate to above 45 degrees Celsius, and carry out radiation heating to indoor space. Air conditioner can be in radiation and convection double heating mode, and indoor temperature can be quickly improved. Air conditioner can also be in independent radiation heating mode, and radiation heating is carried out, indoor temperature is maintained, and minimum indoor convection wind is kept. In order to achieve the best body feeling of user in proper heating temperature. And effectively improve the energy saving of heat pump type air conditioner heating mode. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the present disclosure, the drawings needed to be used in some embodiments of the present disclosure will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can also be obtained by those skilled in the art according to these drawings. In addition, the drawings in the following description can be regarded as schematic diagrams, and are not limited to the actual size, actual process, actual time sequence, etc. of the product involved in the embodiments of the present disclosure.

[0023] Figure 1 The side view of the air conditioner radiation heating device is shown in the figure.

[0024] Figure 2 The front view of the air conditioner radiation heating device is shown in the figure.

[0025] Figure 3 The refrigeration air circulation image is shown in the figure.

[0026] Figure 4 The refrigeration air circulation image is shown in the figure.

[0027] Figure 5 The heating air circulation and radiation heating image is shown in the figure.

[0028] Figure 6 The heating air circulation and radiation heating image is shown in the figure.

[0029] Figure 7 The refrigerant flow direction diagram of air conditioner refrigeration work is shown in the figure.

[0030] Figure 8 Refrigerant flow diagram for convection heating and radiant heating of air conditioners.

[0031] Figure 9 Refrigerant flow diagram for radiant heating in air conditioners.

[0032] Among them: 1- refrigeration air outlet, 2- evaporator, 3- radiant heat coil, 4- thermal grease, 5- radiant heat sink, 6- indoor fan, 7- outdoor fan, 8- compressor, 9- air conditioner outdoor unit, 10- condenser, 11- control valve A, 12- control valve B, 13- four-way valve. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solutions in this application, the following will provide a clear and complete description of the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0034] In the description of the embodiments of the present application, the terms "first" and "second" 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, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "plurality" is at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0035] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0036] In the present application, unless specifically stated and limited otherwise, a first feature "on" or "under" a second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "over", "above" and "on top of" the second feature can be the first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "underneath" the second feature can be the first feature directly below or obliquely below the second feature, or simply indicate that the first feature is lower in horizontal height than the second feature.

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0038] The present application will be described in further detail below through embodiments.

[0039] Embodiment 1

[0040] As Figures 1-6 , the present embodiment provides a radiation heating device for air conditioner, comprising an evaporator 2, a radiation heat coil 3, a radiation heat panel 5 and an indoor fan 6, the indoor fan 6 is arranged below the evaporator 2; a refrigeration air outlet 1 is arranged above the evaporator 2, and the radiation heat panel 5 is arranged outside the evaporator 2; the radiation heat coil 3 is arranged on the inner wall surface of the radiation heat panel 5, and the radiation heat coil 3 is arranged in an arch shape and uniformly back and forth in the inner surface of the radiation heat panel 5, and the refrigerant flows through the inside of the radiation heat coil 3 pipeline to conduct heat to the radiation heat panel 5.

[0041] In the present embodiment, there is a heat insulation material between the radiation heat panel 5 and the evaporator 2, and the heat insulation material is selected from an ABS material air duct or a steel plate air duct covered with an rubber plastic insulation board to prevent the generation of cold bridge effect.

[0042] In the present embodiment, the outer part of the radiation heat coil 3 should have measures to enhance good heat conduction with the radiation heat panel 5, such as filling the heat-conducting silicone grease 4 between the outer part of the radiation heat coil 3 and the radiation heat panel 5.

[0043] In the present embodiment, the radiation heat panel 5 is punched from an anode aluminum plate or a steel plate. It can be punched into a reasonable shape to increase the strength and expand the radiation heating surface area.

[0044] In the present embodiment, the indoor fan 6 is a variable frequency fan to provide more adjustable performance to meet the different air volume requirements in the refrigeration working condition and the heating working condition.

[0045] In this embodiment, the indoor unit of the heat pump air conditioner is designed as a floor type, a wall-hung type, a ceiling-embedded type or a floor-embedded type. The present application includes but is not limited to the above-mentioned installation modes.

[0046] Embodiment 2

[0047] As Figures 7-9 , the present embodiment provides an air conditioner, which comprises a heat pump air conditioner indoor unit and a heat pump air conditioner outdoor unit 9 connected through a refrigerant connecting pipe. The heat pump air conditioner indoor unit comprises the above-mentioned air conditioning radiant heating device. The air conditioning radiant heating device is provided with two parallel refrigerant pipelines. One pipeline is connected to the evaporator 2 through a control valve A11, and the other pipeline is connected to the radiant heat coil 3 through a control valve B12. The two refrigerant pipelines are controlled through the control valve A11 and the control valve B12, respectively. The two refrigerant pipelines are combined into one refrigerant pipeline in parallel. The combined refrigerant pipeline is connected to the heat pump air conditioner outdoor unit 9.

[0048] One or more of the heat pump air conditioner indoor units are connected to share one heat pump air conditioner outdoor unit.

[0049] The control valve A11 and the control valve B12 are selected from one of an electronic expansion valve, a check valve and an electronic one-way valve, which is not limited herein.

[0050] The heat pump air conditioner outdoor unit 9 comprises a compressor 8, an outdoor fan 7, a condenser 10 and a four-way valve 13. The exhaust end of the compressor 8 is connected to the high-pressure end of the four-way valve 13 for controlling the flow direction of the refrigerant. The return end of the compressor 8 is connected to the low-pressure end of the four-way valve. One passage of the four-way valve 13 is connected to the inlet of the condenser 10. The outlet of the condenser 10 is connected to the refrigerant pipeline of the heat pump air conditioner indoor unit. The outdoor fan 7 is located at the rear end of the condenser 10 and is connected to the heat dissipation air duct of the condenser 10. The outdoor condenser is air-cooled and heat-dissipated through the inherent air duct of the outdoor unit. The outdoor fan 7 is composed of an outdoor fan motor and an axial flow fan blade.

[0051] As Figures 3-4 , the heat pump air conditioner outdoor unit 9 comprises a compressor 8, an outdoor fan 7, a condenser 10 and a four-way valve 13. The exhaust end of the compressor 8 is connected to the high-pressure end of the four-way valve 13 for controlling the flow direction of the refrigerant. The return end of the compressor 8 is connected to the low-pressure end of the four-way valve. One passage of the four-way valve 13 is connected to the inlet of the condenser 10. The outlet of the condenser 10 is connected to the refrigerant pipeline of the heat pump air conditioner indoor unit. The outdoor fan 7 is located at the rear end of the condenser 10 and is connected to the heat dissipation air duct of the condenser 10. The outdoor condenser is air-cooled and heat-dissipated through the inherent air duct of the outdoor unit. The outdoor fan 7 is composed of an outdoor fan motor and an axial flow fan blade.

[0052] The flow direction of the refrigerant is controlled by the four-way valve. The refrigerant passes through the condenser, which is forcibly heat-dissipated by the outdoor fan 7. After heat-dissipation, the refrigerant is condensed into liquid refrigerant, which is sent to the indoor unit through the indoor-outdoor unit connecting liquid pipe. The indoor unit provides convection cooling (the control valve A is opened, the evaporator refrigerant flows through, the indoor fan works, and the convection cooling works. At the same time, the control valve B is closed, the radiant heat coil has no refrigerant flowing through, and the work of the radiant part is stopped.)

[0053] The refrigerant passes through the evaporator, is refrigerated and evaporated, forms a supersaturated refrigerant gas, is transported back to the outdoor unit compressor through the indoor-outdoor unit connecting gas pipe, and completes the refrigeration cycle.

[0054] As Figures 5-6 Air conditioner heating operation

[0055] The refrigerant flow is controlled by the four-way valve. The refrigerant from the compressor outlet passes through the four-way valve and is sent to the indoor and outdoor unit connecting pipe, to the indoor evaporator and the radiant heat coil.

[0056] As Figure 9 , working mode 1 radiant heating (control valve A is closed, no refrigerant flows through the evaporator, the indoor fan stops working, and the convection heating is closed. At the same time, control valve B is opened, the refrigerant flows through the radiant heat coil, heating the radiant heating plate, and the radiant heating works.)

[0057] As Figure 8 , working mode 2 radiant and convection heating (control valve A is opened, the refrigerant flows through the evaporator, the indoor fan works, and the convection heating works. At the same time, control valve B is opened, the refrigerant flows through the radiant heat coil, heating the radiant heating plate, and the radiant heating works.)

[0058] Working mode 3 convection heating (control valve A is opened, the refrigerant flows through the evaporator, the indoor fan works, and the convection heating works. At the same time, control valve B is closed, no refrigerant flows through the radiant heat coil, and the radiant heating stops working.)

[0059] The opening and closing of control valve A and control valve B can obtain different heating forms. The refrigerant flowing through the indoor unit passes through the indoor and outdoor unit connecting liquid pipe, is sent to the outdoor unit, passes through the outdoor unit condenser to return to the compressor, and completes the heating cycle.

[0060] Figure 6 The annular arrow from the air supply port to the return air port indicates the convection heating of the room. The horizontal arrow of the radiant heating plate indicates the radiant heating of the room.

[0061] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

[0062] The above and other aspects and features of the present application are described in the following detailed description and will become apparent to those skilled in the art from the drawings and the detailed description. Accordingly, the application is not limited to the embodiments described herein, but can be practiced with modification and alteration within the scope of the present application. The application described in this specification can be any one of the embodiments described by this specification and any and all combinations of any of the embodiments described by this specification. Accordingly, the scope of the application is not limited to the embodiments described herein, but can be practiced with modification and alteration within the scope of the present application. The scope of the application encompass implementations in software, firmware, hardware, or any combination thereof. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.

[0063] Furthermore, it should be understood that although the present specification describes particular embodiments, each of which contains only a single independent technical solution, the specification is merely a description of certain embodiments of the application and is not intended to be limiting of the application's scope as it is described in the appended claims. The technical solutions in each embodiment can be combined with each other to form other embodiments that can be understood by those skilled in the art.

Claims

1. An air conditioner, characterized in that: The invention comprises a heat pump air conditioner indoor unit and a heat pump air conditioner outdoor unit (9) connected via a refrigerant connecting pipe, wherein the heat pump air conditioner indoor unit comprises an air conditioning radiation heating device, wherein the air conditioning radiation heating device is provided with two parallel refrigerant pipelines, one of which is connected to the evaporator (2) via a control valve A (11), and the other is connected to the radiation heat coil (3) via a control valve B (12), the two refrigerant pipelines are controlled by the control valve A (11) and the control valve B (12) respectively, the two refrigerant pipelines are connected in parallel to merge into one refrigerant pipeline, and the merged refrigerant pipeline is connected to the heat pump air conditioner outdoor unit (9); The air conditioning radiation heating device comprises an evaporator (2), a radiation heat coil (3), a radiation heat dissipation plate (5) and an indoor fan (6), wherein the indoor fan (6) is arranged below the evaporator (2); a cooling air outlet (1) is arranged above the evaporator (2), and a radiation heat dissipation plate (5) is arranged outside the evaporator (2); a radiation heat coil (3) is arranged on the inner wall surface of the radiation heat dissipation plate (5), and the radiation heat coil (3) is evenly arranged back and forth in a bow shape on the inner surface of the radiation heat dissipation plate (5); a refrigerant flows through the inside of the radiation heat coil (3) pipeline to transfer heat to the radiation heat dissipation plate (5); The outdoor unit (9) of the heat pump air conditioner includes a compressor (8), an outdoor fan (7), a condenser (10), and a four-way valve (13). The exhaust end of the compressor (8) is connected to the high-pressure end of the four-way valve (13) for controlling the flow direction of the refrigerant. The return air end of the compressor (8) is connected to the low-pressure end of the four-way valve. One of the four-way valves (13) is connected to the inlet of the condenser (10). The outlet of the condenser (10) is connected to the refrigerant pipeline of the indoor unit of the heat pump air conditioner. The outdoor fan (7) is located at the rear end of the condenser (10) and is connected to the heat dissipation duct of the condenser (10).

2. An air conditioner according to claim 1, characterized in that: There is a heat-insulating material between the radiation heat dissipation plate (5) and the evaporator (2).

3. The air conditioner according to claim 1, characterized in that: Thermal conductive silicone grease (4) is filled between the outside of the radiant heat coil (3) and the radiant heat dissipation plate (5).

4. The air conditioner according to claim 1, characterized in that: The radiant heat dissipation plate (5) is formed by stamping an anodized aluminum plate or a steel plate.

5. The air conditioner according to claim 1, characterized in that: The indoor fan (6) is a variable frequency fan.

6. The air conditioner according to claim 1, characterized in that: The indoor unit of the heat pump air conditioner is designed to be floor-standing, wall-mounted, ceiling-embedded or ground-embedded.

7. The air conditioner according to claim 1, characterized in that: One or more heat pump air conditioner indoor units are connected to a common heat pump air conditioner outdoor unit.

8. The air conditioner according to claim 1, characterized in that: The control valve A (11) and the control valve B (12) are selected from one of an electronic expansion valve, a one-way valve, and an electronic one-way valve.

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