Auxiliary heating device for air conditioner and air conditioner

Abstract

The utility model relates to the technical field of air conditioners, and discloses an auxiliary heating device for an air conditioner. The auxiliary heating device for the air conditioner comprises a first tank body, a second tank body, a connecting pipeline, a heat exchange structure and a heat source, the first tank body is provided with a first containing cavity, a first inlet and a first outlet, the first inlet is communicated with a refrigerating system of the air conditioner and the first containing cavity, and the first outlet is communicated with the first containing cavity; the first containing cavity is suitable for containing fluid; the second tank body is provided with a second containing cavity, a second inlet and a second outlet, the second inlet communicates with the first outlet and the second containing cavity, the second outlet communicates with the second containing cavity and the refrigerating system, and the second containing cavity is suitable for containing fluid; the connecting pipeline is connected between the first outlet and the second inlet; the heat exchange structure is arranged on the connecting pipeline; the heat source corresponds to the heat exchange structure and is used for exchanging heat with the heat exchange structure; wherein the boiling point of the fluid is higher than that of a refrigerant in the refrigerating system. Therefore, the heating efficiency can be improved. The utility model further discloses the air conditioner.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioners, and particularly relates to an auxiliary heating device for an air conditioner and an air conditioner. Background Art

[0002] Currently, the operating energy consumption of air conditioners is relatively high, which is a pain point in the current air conditioner industry.

[0003] In related technologies, in order to reduce the energy consumption of air conditioners, a solar air conditioner is disclosed, including: a compressor, an indoor heat exchanger, a throttling device, and an outdoor heat exchanger that are connected end to end in sequence; a solar heating device, the first end of the solar heating device is connected to the throttling device; a flow valve, the flow valve is used to adjust the flow rate of the refrigerant, the first end of the flow valve is connected to the throttling device, and the second end of the flow valve is connected to the indoor heat exchanger; the solar air conditioner has a first state and a second state; when the solar air conditioner is in the first state, the third end of the flow valve is connected to the second end of the solar heating device; when the solar air conditioner is in the second state, the third end of the flow valve is disconnected from the second end of the solar heating device.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in related technologies:

[0005] The heating efficiency of the solar heating device is low and still needs to be improved.

[0006] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Utility Model

[0007] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. The summary is not a general review, nor is it intended to identify key / important constituent elements or delineate the protection scope of these embodiments, but rather serves as a preface to the subsequent detailed description.

[0008] The embodiments of the present disclosure provide an auxiliary heating device for an air conditioner and an air conditioner to improve the heating efficiency of the auxiliary heating device.

[0009] According to a first aspect of an embodiment of the utility model, there is provided an auxiliary heating device for an air conditioner, characterized in that it comprises: a first tank body, provided with a first cavity, a first inlet and a first outlet, the first inlet being connected to the refrigeration system of the air conditioner and the first cavity, the first outlet being connected to the first cavity, and the first cavity being suitable for containing a fluid; a second tank body, provided with a second cavity, a second inlet and a second outlet, the second inlet being connected to the first outlet and the second cavity, the second outlet being connected to the second cavity and the refrigeration system, and the second cavity being suitable for containing a fluid; a connecting pipeline being connected between the first outlet and the second inlet; a heat exchange structure being arranged in the connecting pipeline; a heat source corresponding to the heat exchange structure and being used for exchanging heat with the heat exchange structure; wherein the boiling point of the fluid is higher than the boiling point of the refrigerant in the refrigeration system.

[0010] Optionally, the second tank body is higher than the first tank body, wherein the refrigerant flows through the first tank body and the second tank body in sequence in the auxiliary heating device.

[0011] Optionally, the auxiliary heating device for the air conditioner also includes: a pump body, arranged in the connecting pipeline, used to drive the fluid in the first cavity to flow into the second cavity through the first outlet and the second inlet in sequence; and / or, a first switch, arranged at the first outlet, used to control the opening and closing of the first outlet.

[0012] Optionally, the first tank body is further provided with a first reflux inlet connected to the first cavity, the second tank body is further provided with a first reflux outlet connected to the second cavity, and the auxiliary heating device further includes: a first reflux pipeline connecting the first reflux inlet and the first reflux outlet.

[0013] Optionally, the auxiliary heating device for the air conditioner also includes: a second switch and a third switch, both of which are arranged in the first return pipeline, for controlling the on-off of the first return pipeline; wherein, along the direction of fluid reflux, the second switch and the third switch are arranged in sequence, and are configured so that in the case of fluid reflux, the opening of the second switch is greater than the opening of the third switch.

[0014] Optionally, the heat exchange structure includes: a heat exchange plate, provided with a first flow channel, the first flow channel includes a curved section, and the connecting pipeline passes through the first flow channel or the connecting pipeline is connected to the first flow channel.

[0015] Optionally, the heat source includes: a cold tank for absorbing solar energy; a hot tank connected to the cold tank, and the heat storage medium in the cold tank flows into the hot tank after being heated to a preset temperature by solar energy; wherein the cold tank and the hot tank both correspond to the heat exchange structure and are used to exchange heat with the heat exchange structure.

[0016] Optionally, the cold tank is provided with a third outlet and a second return inlet, and the heat source further includes: a first heat exchange tube, connected between the third outlet and the second return inlet, the heat exchange plate is further provided with a second flow channel, the second flow channel includes a curved section, the first heat exchange tube passes through the second flow channel or the first heat exchange tube is connected to the second flow channel; the hot tank is provided with a fourth outlet and a third return inlet, and the heat source further includes: a second heat exchange tube, connected between the fourth outlet and the third return inlet, the heat exchange plate is further provided with a third flow channel, the third flow channel includes a curved section, the second heat exchange tube passes through the third flow channel or the second heat exchange tube is connected to the third flow channel; wherein, the second flow channel and the third flow channel are located on opposite sides of the first flow channel.

[0017] Optionally, the cold tank is provided with a fourth reflux inlet, the hot tank is also provided with a second reflux outlet, and the heat source further includes: a second reflux pipeline, connected between the fourth reflux inlet and the second reflux outlet, so that the heat storage medium in the hot tank can flow back to the cold tank through the second reflux pipeline; a fourth switch, provided in the second reflux pipeline, for controlling the on and off of the second reflux pipeline.

[0018] According to a second aspect of an embodiment of the utility model, an air conditioner is provided, comprising: a refrigeration system; an auxiliary heating device for the air conditioner as described in any one of the above embodiments, wherein the first inlet and the second outlet are both connected to the refrigeration system.

[0019] The auxiliary heating device for an air conditioner and the air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0020] The first volume chamber of the first tank body and the second volume chamber of the second tank body are both filled with fluid. After the refrigerant in the refrigeration system enters the first volume chamber through the first inlet of the first tank body, the refrigerant is absorbed by the fluid contained in the first volume chamber to form a fluid-refrigerant solution. The fluid-refrigerant solution flows into the connecting pipeline through the first outlet of the first tank body. In the connecting pipeline, the heat exchange structure corresponds to the heat source. When the fluid-refrigerant solution flows through the heat exchange structure, the heat of the heat source is transferred to the fluid-refrigerant solution through the heat exchange structure. After the refrigerant is dissolved in the fluid, heat exchange is performed between the heat source in the form of the fluid-refrigerant solution, which can improve the uniformity of heat exchange and thus improve the heating efficiency. Since the boiling point of the fluid is higher than the boiling point of the refrigerant in the refrigeration system, the heat provided by the heat source causes the refrigerant to absorb heat and evaporate in the fluid, at least partially forming a gaseous refrigerant, and the fluid is still in liquid state. The gaseous refrigerant and the liquid fluid flow into the second volume chamber from the second inlet of the second tank body. The liquid fluid is contained in the second volume chamber, and the gaseous refrigerant enters the refrigeration system through the second outlet of the second tank body. The auxiliary heating device can use low-grade heat sources such as solar energy to heat the refrigerant, which can reduce overall energy consumption and be more energy-saving and environmentally friendly. At the same time, since the boiling point of the fluid is higher than that of the refrigerant, the fluid is still in liquid when the refrigerant evaporates, which can prevent the liquid fluid from flowing into the refrigeration system with the gaseous refrigerant, thereby improving reliability.

[0021] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0023] Figure 1 is a structural schematic diagram of an auxiliary heating device for an air conditioner provided by an embodiment of the present disclosure, wherein the arrow indicates the flow direction of the fluid in the connecting pipeline and the first return pipeline;

[0024] Figure 2 is a schematic diagram of a heat exchange structure and a heat source provided by an embodiment of the present disclosure, wherein arrows indicate the flow direction of the heat storage medium in the first heat exchange tube, the flow direction of the heat storage medium in the second heat exchange tube, and the flow direction of the heat storage medium in the flow pipeline and the second return pipeline, respectively;

[0025] Figure 3 is a schematic structural diagram of another heat exchange structure provided by an embodiment of the present disclosure in cooperation with a heat source, wherein arrows indicate the flow direction of the heat storage medium in the first heat exchange tube, the flow direction of the heat storage medium in the second heat exchange tube, and the flow direction of the fluid in the connecting pipeline and the first return pipeline, respectively;

[0026] Figure 4 is a schematic diagram of a structure in which an auxiliary heating device for an air conditioner provided by an embodiment of the present disclosure is installed in a refrigeration system, wherein arrows indicate the flow directions of the refrigerant and the fluid;

[0027] Figure 5 It is a schematic structural diagram of another auxiliary heating device for air conditioning provided by an embodiment of the present disclosure, which is installed in a refrigeration system, wherein arrows indicate the flow direction of the refrigerant and the fluid.

[0028] Reference numerals:

[0029] 10: first tank body; 11: first cavity; 12: first inlet; 13: first outlet; 131: first switch; 14: first reflux inlet;

[0030] 20: second tank body; 21: second chamber; 22: second inlet; 23: second outlet; 24: first reflux outlet;

[0031] 30: Connecting pipelines;

[0032] 40: heat exchange structure; 41: heat exchange plate; 411: first flow channel; 412: second flow channel; 413: third flow channel;

[0033] 50: heat source; 51: cold tank; 511: third outlet; 512: second reflux inlet; 513: fourth reflux inlet; 514: fifth outlet; 515: first stop valve; 516: second stop valve; 52: hot tank; 521: fourth outlet; 522: third reflux inlet; 523: second reflux outlet; 524: third inlet; 525: third stop valve; 526: fourth stop valve; 53: first heat exchange tube; 531: first drive pump; 532: second drive pump; 54: second heat exchange tube; 541: third drive pump; 542: fourth drive pump; 55: second reflux pipeline; 551: fourth switch; 56: circulation pipeline; 561: fifth switch;

[0034] 60: pump body;

[0035] 70: first return line; 71: second switch; 72: third switch;

[0036] 80: compressor; 81: condenser; 82: evaporator; 83: first valve; 84: electronic expansion valve; 85: two-way valve; 86: three-way valve; 87: second valve; 88: fifth drive pump;

[0037] 90: Auxiliary heating device. DETAILED DESCRIPTION

[0038] In order to be able 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 is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0039] The terms "first", "second", etc. in the specification and claims of the disclosed embodiments 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 terms used in this way can be interchanged where appropriate for the disclosed embodiments described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0040] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. 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 circumstances.

[0041] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or 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 the specific circumstances.

[0042] Unless otherwise stated, the term "plurality" means two or more.

[0043] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0044] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A, or B, or, A and B.

[0045] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0046] Combination Figure 1-5As shown, the embodiment of the present disclosure provides an auxiliary heating device for an air conditioner, comprising a first tank body 10, a second tank body 20, a connecting pipeline 30, a heat exchange structure 40 and a heat source 50, wherein the first tank body 10 is provided with a first cavity 11, a first inlet 12 and a first outlet 13, the first inlet 12 is connected to the refrigeration system of the air conditioner and the first cavity 11, the first outlet 13 is connected to the first cavity 11, and the first cavity 11 is suitable for containing a fluid; the second tank body 20 is provided with a second cavity 21, a second inlet 22 and a second outlet 23, the second inlet 22 is connected to the first outlet 13 and the second cavity 21, the second outlet 23 is connected to the second cavity 21 and the refrigeration system, and the second cavity 21 is suitable for containing a fluid; the connecting pipeline 30 is connected between the first outlet 13 and the second inlet 22; the heat exchange structure 40 is provided in the connecting pipeline 30; the heat source 50 corresponds to the heat exchange structure 40, and is used for exchanging heat with the heat exchange structure 40; wherein the boiling point of the fluid is higher than the boiling point of the refrigerant in the refrigeration system.

[0047] The first volume chamber 11 of the first tank body 10 and the second volume chamber 21 of the second tank body 20 are both filled with fluid. After the refrigerant in the refrigeration system enters the first volume chamber 11 through the first inlet 12 of the first tank body 10, the refrigerant is absorbed by the fluid contained in the first volume chamber 11 to form a fluid-refrigerant solution. The fluid-refrigerant solution flows into the connecting pipe 30 through the first outlet 13 of the first tank body 10. In the connecting pipe 30, the heat exchange structure 40 corresponds to the heat source 50. When the fluid-refrigerant solution flows through the heat exchange structure 40, the heat of the heat source 50 is transferred to the fluid-refrigerant solution through the heat exchange structure 40. Since the boiling point of the fluid is higher than the boiling point of the refrigerant in the refrigeration system, the heat provided by the heat source 50 causes at least part of the refrigerant to absorb heat and evaporate in the fluid, at least part of which forms a gaseous refrigerant, and the fluid is still in liquid state. The gaseous refrigerant and the liquid fluid flow into the second volume chamber 21 through the second inlet 22 of the second tank body 20. It can be understood that the refrigerant in the fluid absorbs heat and evaporates to form a gaseous refrigerant. This process can occur in the connecting pipe 30 or in the second tank body 20. The liquid fluid is contained in the second cavity 21, and the gaseous refrigerant enters the refrigeration system through the second outlet 23 of the second tank body 20. Since the gaseous refrigerant has a higher pressure and temperature, it can more effectively exchange heat in the air-conditioning system and improve the heating efficiency. After the gaseous refrigerant releases heat in the refrigeration system, it condenses back to liquid and returns to the first tank body 10 through the refrigeration system, realizing a closed-loop circulation of the refrigerant.

[0048] like Figure 1 As shown, the first cavity 11 of the first tank body 10 and the second cavity 21 of the second tank body 20 are both spherical chambers. The horizontal line in the middle of the spherical chamber indicates the gas-liquid phase change occurring in the first tank body 10 and the second tank body 20, with the gas state above the horizontal line and the liquid state below the horizontal line.

[0049] Alternatively, the fluid may be aqueous ammonia or a lithium bromide solution.

[0050] By using the auxiliary heating device for air conditioning provided by the embodiment of the present disclosure, after the refrigerant is dissolved in the fluid, heat exchange is performed with the heat source 50 in the form of a fluid-refrigerant solution, which can improve the uniformity of the heat exchange and thus improve the heating efficiency. At the same time, the heat provided by the heat source 50 causes the refrigerant to absorb heat and evaporate in the fluid to form a gaseous refrigerant, which can increase the pressure and temperature of the refrigerant and achieve compression of the refrigerant, so that the auxiliary heating device can replace the compressor and operate independently of the compressor in the refrigeration system. The auxiliary heating device can use low-grade heat sources 50 such as solar energy to heat the refrigerant, which can reduce overall energy consumption and be more energy-saving and environmentally friendly. At the same time, since the boiling point of the fluid is higher than that of the refrigerant, the fluid is still in liquid when the refrigerant evaporates, which can prevent the liquid fluid from flowing into the refrigeration system with the gaseous refrigerant, thereby improving reliability.

[0051] Optionally, combined Figure 1-2 As shown, the second tank body 20 is higher than the first tank body 10, wherein the refrigerant flows through the first tank body 10 and the second tank body 20 in sequence in the auxiliary heating device.

[0052] The second tank body 20 is higher than the first tank body 10, and the heat exchange structure 40 is located between the first tank body 10 and the second tank body 20. In the process of the fluid-refrigerant solution flowing from the first tank body 10 to the second tank body 20, it flows from bottom to top and can pass through the heat exchange structure 40 slowly, thereby increasing the residence time in the heat exchange structure 40 and contacting the heat exchange structure 40 more effectively, so that more heat is transferred to the refrigerant through the heat exchange structure 40, thereby enhancing the heating effect on the refrigerant.

[0053] Optionally, combined Figure 1 As shown, the auxiliary heating device for air conditioning further includes a pump body 60 , which is disposed in the connecting pipeline 30 and is used to drive the fluid in the first cavity 11 to flow into the second cavity 21 through the first outlet 13 and the second inlet 22 in sequence.

[0054] A pump body 60 is provided in the connecting pipeline 30, and the pump body 60 provides a power source for the fluid to flow, driving the fluid in the first cavity 11 to flow into the second cavity 21 through the first outlet 13 and the second inlet 22 in sequence, so that the fluid can flow between the first cavity 11 and the second cavity 21 even without natural flow conditions, and the system can operate normally. At the same time, by adjusting the flow rate of the pump body 60, the amount of fluid passing through the heat exchange structure 40 can also be accurately controlled to meet different heat load requirements.

[0055] Optionally, combined Figure 1 As shown, the auxiliary heating device for the air conditioner further includes a first switch 131 . The first switch 131 is disposed at the first outlet 13 and is used to control the on and off of the first outlet 13 .

[0056] By controlling the on / off of the first outlet 13 through the first switch 131 , it is possible to more conveniently start or stop the flow of the fluid to the second tank body 20 , thereby controlling the operation of the auxiliary heating device.

[0057] Optionally, combined Figure 1 As shown, the first tank body 10 is also provided with a first reflux inlet 14 connected to the first cavity 11, and the second tank body 20 is also provided with a first reflux outlet 24 connected to the second cavity 21. The auxiliary heating device also includes a first reflux pipeline 70, which connects the first reflux inlet 14 and the first reflux outlet 24.

[0058] The flow direction of the fluid in the connecting pipeline and the first return pipeline is as follows Figure 1 and Figure 3 shown.

[0059] The fluid enters the connecting pipe 30 from the first volume chamber 11 through the first outlet 13 of the first tank body 10, then enters the second volume chamber 21 through the second inlet 22 of the second tank body 20, and then enters the first reflux pipe 70 through the first reflux outlet 24 of the second tank body 20, and flows back into the first volume chamber 11 through the first reflux inlet 14 of the first tank body 10, so that the fluid circulates inside the auxiliary heating device. At the same time, the use of a fluid with a high boiling point can prevent the fluid from flowing into the refrigeration system, so that the fluid circulates only between the first tank body 10 and the second tank body 20.

[0060] Since the second tank body 20 is higher than the first tank body 10 , the fluid in the second tank body 20 can flow back to the first tank body 10 under the action of gravity, so that no pump device needs to be set to drive the fluid when it flows back in the first return line 70 .

[0061] Optionally, combined Figure 1 As shown, the auxiliary heating device for the air conditioner also includes a second switch 71 and a third switch 72, and the second switch 71 and the third switch 72 are both arranged in the first return pipeline 70, and are used to control the on-off of the first return pipeline 70; wherein, along the direction of fluid reflux, the second switch 71 and the third switch 72 are arranged in sequence, and are configured so that in the case of fluid reflux, the opening of the second switch 71 is greater than the opening of the third switch 72.

[0062] Along the direction of fluid reflux from the second tank body 20 to the first tank body 10, the second switch 71 and the third switch 72 are sequentially arranged in the first reflux pipeline 70, which can provide more precise flow control for the first reflux pipeline 70. In the case of fluid reflux, the opening of the second switch 71 is greater than the opening of the third switch 72, which can maintain a proper pressure difference between the first tank body 10 and the second tank body 20, so that when the fluid refluxes to the second tank body 20, the gaseous refrigerant is prevented from refluxing from the first tank body 10 to the second tank body 20, thereby maintaining the normal operation of the system.

[0063] Optionally, combined Figure 3 As shown, the heat exchange structure 40 includes a heat exchange plate 41 , which is provided with a first flow channel 411 . The first flow channel 411 includes a curved section. The connecting pipeline 30 passes through the first flow channel 411 or is connected to the first flow channel 411 .

[0064] The connecting pipeline 30 passes through the first flow channel 411 or the connecting pipeline 30 is connected to the first flow channel 411, so that the refrigerant in the connecting pipeline 30 can complete the heat exchange with the heat exchange plate 41 in the first flow channel 411. The connecting pipeline 30 passes through the first flow channel 411, and the heat exchange of the refrigerant can be achieved through the contact between the first flow channel 411 and the connecting pipeline 30. The connecting pipeline 30 is connected to the first flow channel 411, so that the refrigerant can enter the first flow channel 411 through the connecting pipeline 30, and the heat exchange of the refrigerant can be achieved directly in the first flow channel 411.

[0065] The heat exchange plate 41 is provided with a first flow channel 411 including a curved section. The setting of the curved section can increase the flow path of the fluid and the refrigerant in the heat exchange plate 41, increase the contact area and contact time between the refrigerant and the heat exchange plate 41, and thus improve the heat exchange efficiency.

[0066] Optionally, combined Figure 1-2 As shown, the heat source 50 includes a cold tank 51 and a hot tank 52. The cold tank 51 is used to absorb solar energy. The hot tank 52 is connected to the cold tank 51. The heat storage medium in the cold tank 51 is heated to a preset temperature by solar energy and then flows into the hot tank 52. Among them, the cold tank 51 and the hot tank 52 both correspond to the heat exchange structure 40 and are used to exchange heat with the heat exchange structure 40.

[0067] The preset temperature may be an exhaust temperature that enables the temperature of the fluid to reach the current operating condition of the refrigeration system.

[0068] After the heat storage medium in the cold tank 51 absorbs solar energy, it is converted into a gaseous heat storage medium, which can directly exchange heat with the heat exchange structure 40. Alternatively, the heat storage medium in the cold tank 51 is heated to a preset temperature by solar energy, and then converted into a gaseous heat storage medium, flows into the hot tank 52, and uses the heat storage medium to store energy in the hot tank 52, and then exchanges heat with the heat exchange structure 40 through the heat storage medium in the hot tank 52. The embodiment of the present disclosure sets the cold tank 51 and the hot tank 52 as the heat source 50, relies on the photothermal effect to store heat, and combines absorption solar refrigeration to supply air conditioning operation, which can reduce energy consumption.

[0069] As a heat absorbing device, the cold tank 51 can absorb solar energy in real time and provide heat in real time. As a heat storage device, the hot tank 52 stores the heat storage medium heated to a preset temperature. This can avoid being limited by the intensity of sunlight, extend the auxiliary heating time, and save energy and electricity. The embodiment of the present disclosure adopts the form of combined use of a heat absorbing device and a heat storage device, which can effectively improve the heating effect and energy saving effect.

[0070] Optionally, the heat storage medium in the cold tank 51 and the hot tank 52 may be water or ethanol.

[0071] The non-powered cycle can be formed by the gas-liquid two-phase state conversion of the heat storage medium in the cold tank 51 and the hot tank 52. The heat storage medium is in liquid state in the cold tank 51. For example, the cold tank 51 absorbs solar energy to raise the temperature of water to 100°C, and the heat storage medium is converted into gas state. After the gaseous heat storage medium exchanges heat with the refrigerant through the heat exchange structure 40, the temperature of the heat storage medium drops and is converted into liquid state again, forming a cycle.

[0072] The disclosed embodiment absorbs the refrigerant into the fluid, and then utilizes solar energy to collect heat in the cold tank 51 and the hot tank 52, transfers heat to the fluid-refrigerant solution through an unpowered cycle, heats the fluid-refrigerant solution through the cold tank 51 or the heat pipe, and vaporizes the refrigerant to form a high-temperature and high-pressure gas, and enters the refrigeration system through the second outlet 23 of the second tank body 20.

[0073] Optionally, combined Figure 1-3 As shown, the cold tank 51 is provided with a third outlet 511 and a second reflux inlet 512, the heat source 50 also includes a first heat exchange tube 53, the first heat exchange tube 53 is connected between the third outlet 511 and the second reflux inlet 512, the heat exchange plate 41 is also provided with a second flow channel 412, the second flow channel 412 includes a curved section, the first heat exchange tube 53 passes through the second flow channel 412 or the first heat exchange tube 53 is connected to the second flow channel 412; the hot tank 52 is provided with a fourth outlet 521 and a third reflux inlet 522, the heat source 50 also includes a second heat exchange tube 54, the second heat exchange tube 54 is connected between the fourth outlet 521 and the third reflux inlet 522, the heat exchange plate 41 is also provided with a third flow channel 413, the third flow channel 413 includes a curved section, the second heat exchange tube 54 passes through the third flow channel 413 or the second heat exchange tube 54 is connected to the third flow channel 413; wherein the second flow channel 412 and the third flow channel 413 are located on opposite sides of the first flow channel 411.

[0074] The flow direction of the heat storage medium in the first heat exchange tube and the flow direction of the heat storage medium in the second heat exchange tube are as follows: Figure 2 and Figure 3 shown.

[0075] The heat storage medium in the cold tank 51 enters the first heat exchange tube 53 through the third outlet 511. The first heat exchange tube 53 with the heat storage medium exchanges heat with the heat exchange plate 41 in the second flow channel 412. After the heat exchange is completed, the heat storage medium flows back to the cold tank 51 through the second reflux inlet 512, thereby realizing the circulation of the heat storage medium between the cold tank 51 and the first heat exchange tube 53.

[0076] The first heat exchange tube 53 passes through the second flow channel 412 or the first heat exchange tube 53 is connected to the second flow channel 412, so that the heat storage medium in the first heat exchange tube 53 can complete the heat exchange with the heat exchange plate 41 in the second flow channel 412. Among them, the first heat exchange tube 53 passes through the second flow channel 412, and the heat exchange of the heat storage medium can be achieved through the contact between the first heat exchange tube 53 and the second flow channel 412. The first heat exchange tube 53 is connected to the second flow channel 412, so that the heat storage medium can enter the second flow channel 412 through the first heat exchange tube 53, and directly achieve the heat exchange of the refrigerant in the second flow channel 412.

[0077] The heat exchange plate 41 is provided with a second flow channel 412 including a curved section. The provision of the curved section can increase the flow path of the heat storage medium in the heat exchange plate 41, increase the contact area and contact time between the heat storage medium and the heat exchange plate 41, and thus improve the heat exchange efficiency.

[0078] The heat storage medium in the heat tank 52 enters the second heat exchange tube 54 through the fourth outlet 521, and the second heat exchange tube 54 with the heat storage medium exchanges heat with the heat exchange plate 41 in the third flow channel 413. After the heat exchange is completed, the heat storage medium flows back to the heat tank 52 through the third reflux inlet 522, thereby realizing the circulation of the heat storage medium between the heat tank 52 and the second heat exchange tube 54.

[0079] The second heat exchange tube 54 passes through the third flow channel 413 or the second heat exchange tube 54 is connected to the third flow channel 413, so that the heat storage medium in the second heat exchange tube 54 can complete the heat exchange with the heat exchange plate 41 in the third flow channel 413. Among them, the second heat exchange tube 54 passes through the third flow channel 413, and the heat exchange of the heat storage medium can be achieved through the contact between the second heat exchange tube 54 and the third flow channel 413. The second heat exchange tube 54 is connected to the third flow channel 413, so that the heat storage medium can enter the third flow channel 413 through the second heat exchange tube 54, and directly achieve the heat exchange of the refrigerant in the third flow channel 413.

[0080] The heat exchange plate 41 is provided with a third flow channel 413 including a curved section. The provision of the curved section can increase the flow path of the heat storage medium in the heat exchange plate 41, increase the contact area and contact time between the heat storage medium and the heat exchange plate 41, and thus improve the heat exchange efficiency.

[0081] By setting the first heat exchange tube 53 and the second heat exchange tube 54, and correspondingly setting the second flow channel 412 and the third flow channel on the heat exchange plate 41, the heat storage medium in the cold tank 51 and the hot tank 52 can more effectively exchange heat with the heat exchange plate 41, and the heat exchange efficiency between the heat source 50 and the refrigerant through the heat exchange plate 41 can be improved.

[0082] The second flow channel 412 and the third flow channel 413 are located on opposite sides of the first flow channel 411, so that the heat storage medium of the cold tank 51 and the heat storage medium of the hot tank 52 can exchange heat with the first flow channel 411 from opposite sides of the first flow channel 411 respectively, avoiding mutual influence between the flow paths of the cold tank 51 and the flow paths of the hot tank 52.

[0083] Optionally, the second flow channel 412 is located at an upper side of the first flow channel 411 , and the third flow channel 413 is located at a lower side of the first flow channel 411 .

[0084] Optionally, combined Figure 2 As shown, the cold tank 51 is provided with a fourth reflux inlet 513, the hot tank 52 is also provided with a second reflux outlet 523, the heat source 50 also includes a second reflux pipeline 55 and a fourth switch 551, the second reflux pipeline 55 is connected between the fourth reflux inlet 513 and the second reflux outlet 523, so that the heat storage medium in the hot tank 52 can flow back to the cold tank 51 through the second reflux pipeline 55; the fourth switch 551 is provided on the second reflux pipeline 55, and is used to control the on and off of the second reflux pipeline 55.

[0085] The flow direction of the heat storage medium in the second return pipeline is as follows Figure 2 shown.

[0086] The heat storage medium in the cold tank 51 is heated to a preset temperature by solar energy and then flows into the hot tank 52. After the gaseous heat storage medium in the hot tank 52 exchanges heat with the heat exchange plate 41, the temperature is lower than the phase change temperature and is converted into a liquid heat storage medium. The liquid heat storage medium flows out of the hot tank 52 through the second reflux outlet 523, enters the second reflux pipeline 55, and enters the cold tank 51 through the fourth reflux inlet 513, so as to realize the circulation of the heat storage medium between the hot tank 52 and the cold tank 51. The fourth switch 551 is provided in the second reflux pipeline 55, which can more accurately control the on and off of the second reflux pipeline 55, and control the opening and closing of the reflux of the heat storage medium between the hot tank 52 and the cold tank 51.

[0087] Optionally, combined Figure 2 As shown, the cold tank 51 is provided with a fifth outlet 514, the hot tank 52 is also provided with a third inlet 524, and the heat source 50 also includes a circulation pipeline 56 and a fifth switch 561. The circulation pipeline 56 is connected between the fifth outlet 514 and the third inlet 524, so that the heat storage medium in the cold tank 51 flows into the hot tank 52 after being heated to a preset temperature by solar energy; the fifth switch 561 is provided in the circulation pipeline 56 for controlling the on-off of the pipeline.

[0088] The flow direction of the heat storage medium in the circulation pipeline is as follows: Figure 2 shown.

[0089] After the heat storage medium in the cold tank 51 is heated to a preset temperature by solar energy, it flows into the circulation pipeline 56 through the fifth outlet 514 and flows into the hot tank 52 through the third inlet 524. The fifth switch 561 is arranged on the circulation pipeline 56, which can more accurately control the on and off of the circulation pipeline 56 and control the opening and closing of the circulation of the heat storage medium between the cold tank 51 and the hot tank 52.

[0090] Optionally, the heat source 50 further includes a delivery pump, which is disposed in the circulation pipeline 56 and is used to drive the heat storage medium in the cold tank 51 to flow into the hot tank 52 through the fifth outlet 514 and the third inlet 524 in sequence.

[0091] Optionally, a first temperature sensor is provided at the cold tank 51 , so that when it is detected that the temperature of the cold tank 51 meets the current operating conditions, the controller controls the first switch 131 to turn on.

[0092] Optionally, a pressure sensor is provided at the pump body 60 of the connecting pipeline 30 to detect the current pressure in the connecting pipeline 30 and control the pump body 60 to increase the pressure of the fluid and the refrigerant to the currently required pressure so that the fluid and the refrigerant are pumped from the first tank body 10 into the second tank body 20.

[0093] The second switch 71 is disposed below the first reflux outlet 24 of the second tank 20 .

[0094] Optionally, a first liquid level sensor is provided at the second inlet 22 of the second tank body 20 to detect the position of the fluid in the second tank body 20. This can prevent the high liquid level from causing a liquid seal at the second inlet 22.

[0095] Optionally, the first reflux pipeline 70 is provided with a second liquid level sensor at the second switch 71 for detecting the position of the fluid in the second tank 20. By detecting the liquid level of the fluid in the second tank 20 by the liquid level sensor, it is possible to prevent the fluid in the second tank 20 from flowing out too much and avoid the release of high-temperature refrigerant from the first reflux outlet 24. When it is detected that the solution position is low, the second switch 71 and the third switch 72 are closed successively.

[0096] Optionally, a second temperature sensor is provided at the hot tank 52 to detect the temperature of the hot tank 52 .

[0097] In some embodiments, the first volume chamber 11 of the first tank body 10 and the second volume chamber 21 of the second tank body 20 are both filled with fluid. When insufficient power is detected, the energy-saving mode is selected. If the temperature of the cold tank 51 is sufficient, the first switch 131 is turned on, and the pressure sensor detects the current pressure in the connecting pipeline 30, and the refrigerant pressure is increased to the currently required pressure. The fluid-refrigerant solution is pumped into the second tank body 20 through the pump body 60. The heat of the heat storage medium in the cold tank 51 is transferred to the fluid-refrigerant solution through the heat exchange structure 40. The heated refrigerant is sent to the refrigeration system of the air conditioner through the pump body 60 for operation. At the same time, the second switch 71 and the third switch 72 are turned on successively, and the opening of the second switch 71 is greater than the opening of the third switch 72. The fluid position in the second tank body 20 is detected, and the second switch 71 and the third switch 72 are closed successively when it is detected that the fluid position is low. If the temperature of the cold tank 51 is not high enough, the heat in the hot tank 52 is detected. If the heat in the hot tank 52 is sufficient, the heat of the heat storage medium in the hot tank 52 is transferred to the fluid-refrigerant solution; if the heat in the hot tank 52 is insufficient, the compressor refrigeration mode is still used. After the energy-saving mode is turned off, the second switch 71, the third switch 72 and the first switch 131 are turned off, and the heat storage medium in the cold tank 51 or the hot tank 52 stops flowing to the heat exchange structure 40, and the air conditioner is controlled to shut down or run according to the logic mode of the compressor refrigeration. The pump body 60 continues to work for a period of time to pump the remaining fluid in the connecting pipe 30 into the second tank body 20.

[0098] Optionally, the heat source 50 includes a light-transmitting concentrating device, which is disposed on the cold tank 51 so as to absorb solar heat by using the light-transmitting concentrating device.

[0099] When the detector detects that the temperature of the heat storage medium in the cold tank 51 is high enough and the liquid level of the liquid heat storage medium in the hot tank 52 drops below the fifth switch 561 in the circulation pipeline 56, the heat storage medium is in a gaseous state. At this time, the fifth switch 561 is turned on, and the gaseous heat storage medium enters the hot tank 52 from the cold tank 51 for storage. A part of the gaseous heat storage medium in the cold tank 51 cannot enter due to the pressure of the gaseous heat storage medium in the hot tank 52. When there is no heat storage medium circulating, the fifth switch 561 is closed, and the heat storage medium is sealed in the cold tank 51 and the hot tank 52. After the heat storage medium in the hot tank 52 is completely cooled to a lower temperature, the detector detects that there is no gaseous heat storage medium in the hot tank 52, and the fourth switch 551 is turned on. The liquid heat storage medium sinks into the cold tank 51 due to gravity. When the liquid level of the liquid heat storage medium in the circulation pipeline 56 drops below the fifth switch 561, the fourth switch 551 is turned on, and the liquid refrigerant is collected in the cold tank 51.

[0100] Optionally, in the second reflux pipeline 55, the pipeline cross-sectional area of ​​the fourth switch 551 toward the cold tank 51 is smaller than the pipeline cross-sectional area of ​​the fourth switch 551 toward the hot tank 52. In this way, when the liquid heat storage medium refluxes, the gaseous heat storage medium in the cold tank 51 can be prevented from rising and flowing into the hot tank 52.

[0101] Optionally, combined Figure 2 As shown, a first stop valve 515 is arranged at the third outlet 511 of the cold tank 51, a second stop valve 516 is arranged at the second reflux inlet 512 of the cold tank 51, a third stop valve 525 is arranged at the fourth outlet 521 of the hot tank 52, and a fourth stop valve 526 is arranged at the third reflux inlet 522 of the hot tank 52; a first drive pump 531 is arranged at the third outlet 511 of the first heat exchange tube 53 toward the heat exchange structure 40, a second drive pump 532 is arranged at the first heat exchange tube 53 toward the second reflux inlet 512 of the heat exchange structure 40, a third drive pump 541 is arranged at the fourth outlet 521 of the second heat exchange tube 54 toward the heat exchange structure 40, and a fourth drive pump 542 is arranged at the second heat exchange tube 54 toward the third reflux inlet 522 of the heat exchange structure 40.

[0102] When it is detected that the temperature of the cold tank 51 is sufficient and can reach above the exhaust temperature, the first stop valve 515 and the second stop valve 516 are opened, the first drive pump 531 and the second drive pump 532 are opened, and the pump body 60 on the connecting pipeline 30 controls the flow rate so that the heat storage medium can heat the fluid to the exhaust temperature of the current operating conditions. After energy saving is completed, the first stop valve 515 and the first drive pump 531 are closed successively, and the remaining heat storage medium in the recovery pipe is recovered by the second drive pump 532, and finally the second stop valve 516 is closed.

[0103] If the temperature of the cold tank 51 is insufficient, the temperature in the hot tank 52 is detected. If the temperature of the hot tank 52 is sufficient, the heat in the hot tank 52 is transferred to the fluid through the heat storage medium. At this time, the third stop valve 525 and the fourth stop valve 526 are opened, and the third drive pump 541 and the fourth drive pump 542 are turned on, and the pump body 60 in the connecting pipeline 30 controls the flow rate so that the heat storage medium can heat the fluid to the exhaust temperature of the current operating conditions. After energy saving is completed, the third stop valve 525 and the third drive pump 541 are closed in turn, and the remaining heat storage medium is recovered by the fourth drive pump 542, and finally the fourth stop valve 526 is closed.

[0104] The disclosed embodiments provide an air conditioner, which includes a refrigeration system. In the auxiliary heating device for an air conditioner as described in any one of the disclosed embodiments, the first inlet 12 and the second outlet 23 are both connected to the refrigeration system.

[0105] The air conditioner provided by the embodiment of the present disclosure includes the auxiliary heating device for air conditioner as described in any one of the above disclosed embodiments, and thus has all the beneficial effects of the auxiliary heating device for air conditioner as described in any one of the above disclosed embodiments, which will not be repeated here.

[0106] Optionally, combined Figure 4As shown, the auxiliary heating device 90 is arranged in parallel with the compressor 80 in the refrigeration system.

[0107] The control flow of the cooling mode is described. After the air conditioner is turned on, the user selects the cooling mode, and then the user selects the energy-saving mode. The controller determines the cooling mode by detecting whether the current temperature of the cold tank 51 meets the current operating conditions. If the current temperature of the cold tank 51 meets the current operating conditions, it is converted to absorption cooling. If the current temperature of the cold tank 51 does not meet the current operating conditions, the current temperature of the hot tank 52 is detected. It is determined whether the current temperature of the hot tank 52 meets the current operating conditions. If the current temperature of the hot tank 52 meets the current operating conditions, it is converted to absorption cooling; if the current temperature of the hot tank 52 does not meet the current operating conditions, the air conditioner compressor is used for cooling.

[0108] When the auxiliary heating device is connected in parallel with the compressor in the refrigeration system, since the auxiliary heating device can operate independently and can replace the compressor, the operating time of the compressor can be reduced when there is sufficient solar energy, thereby reducing the energy consumption of the entire air-conditioning system and improving the energy efficiency ratio.

[0109] It can be understood that the auxiliary heating device for air conditioning provided in the embodiment of the present disclosure can also be used for heating.

[0110] Optionally, combined Figure 4 As shown, the refrigeration system includes a compressor 80, a condenser 81, an evaporator 82 and a valve, wherein the compressor 80 is connected with the condenser 81 and the evaporator 82 in sequence to form a closed-loop first refrigeration passage; the auxiliary heating device 100 is connected with the condenser 81 and the evaporator 82 in sequence to form a closed-loop second refrigeration passage, the first inlet 12 is connected with the evaporator 82, and the second outlet 23 is connected with the condenser 81; the first refrigeration passage and the second refrigeration passage are arranged in parallel, and the valve is arranged in the same section of the first refrigeration passage and the second refrigeration passage.

[0111] In the auxiliary heating device 100, the first inlet 12 of the first tank body 10 is connected to the evaporator 82, and the first cavity 11 of the first tank body 10 is suitable for containing fluid. The gaseous refrigerant flows from the evaporator 82 to the first cavity 11 through the first inlet 12. The fluid continuously absorbs the low-pressure gaseous refrigerant generated by the evaporator 82, which can maintain the low-pressure state in the evaporator 82, so that the evaporator 82 can effectively absorb heat, thereby improving the heat exchange efficiency of the evaporator 82.

[0112] Optionally, combined Figure 4 As shown, the valve includes a first valve 83, which is arranged between the auxiliary heating device, the compressor and the evaporator to control the refrigerant flowing out of the evaporator to flow into the auxiliary heating device or the compressor.

[0113] Optionally, the first valve 83 is a reversing valve.

[0114] Optionally, combined Figure 4 As shown, the valve further includes a three-way valve 86, which is disposed between the first valve 83 and the compressor 80. The first end of the first valve 83 is connected to the auxiliary heating device, the second end of the first valve 83 is connected to the three-way valve 86, and the third end of the first valve 83 is connected to the evaporator 82.

[0115] Optionally, combined Figure 4 As shown, the valve further includes an electronic expansion valve 84 and a two-way valve 85 . The electronic expansion valve 84 is disposed between the condenser 81 and the two-way valve 85 , and the two-way valve 85 is disposed between the electronic expansion valve 84 and the evaporator 82 .

[0116] Optionally, combined Figure 5 As shown, the auxiliary heating device 90 is arranged in series with the compressor 80 in the refrigeration system.

[0117] When the auxiliary heating device is arranged in series with the compressor in the refrigeration system, when insufficient power supply is detected, the auxiliary heating device can be started to assist the compressor, thereby improving the power compensation effect of the air conditioner.

[0118] Optionally, combined Figure 5 As shown, the refrigeration system includes a compressor 80, a condenser 81, an evaporator 82 and a valve, wherein the compressor 80, the condenser 81 and the evaporator 82 are connected in sequence to form a closed-loop third refrigeration passage; the auxiliary heating device 90, the condenser 81, the evaporator 82 and the compressor 80 are connected in sequence to form a closed-loop fourth refrigeration passage, the first inlet 12 is connected to the compressor 80, and the second outlet 23 is connected to the condenser 81; the third refrigeration passage and the fourth refrigeration passage are arranged in parallel, and the valve is arranged in the same section of the third refrigeration passage and the fourth refrigeration passage.

[0119] In the third refrigeration path, the refrigerant is compressed only by the compressor 80. In the fourth refrigeration path, the compressor 80 and the auxiliary heating device 90 are arranged in series, and the refrigerant flowing out of the compressor 80 can flow into the auxiliary heating device 90 to be further compressed.

[0120] Optionally, combined Figure 5 As shown, the valve includes a second valve 87 , which is disposed between the auxiliary heating device 90 , the compressor 80 and the condenser 81 to control the refrigerant flowing out of the compressor 80 to flow into the auxiliary heating device 90 or the condenser 81 .

[0121] Optionally, combined Figure 5As shown, the valve also includes an electronic expansion valve 84, a two-way valve 85, and a three-way valve 86. The electronic expansion valve 84 is arranged between the condenser 81 and the two-way valve 85, the evaporator 82 is arranged between the two-way valve 85 and the three-way valve 86, and the three-way valve 86 is arranged between the evaporator 82 and the compressor 80.

[0122] Optionally, combined Figure 4-5 As shown, the air conditioner further includes a fifth driving pump 88 , which is disposed between the auxiliary heating device 90 and the condenser 91 to pump the refrigerant into the condenser 81 from the second outlet 23 .

[0123] Optionally, the second valve 87 is a reversing valve.

[0124] The above description and the accompanying 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 embodiments represent only possible variations. Unless explicitly 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 replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures 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

1. An auxiliary heating device for an air conditioner, characterized in that: include: The first tank body is provided with a first cavity, a first inlet and a first outlet, the first inlet is connected to the refrigeration system of the air conditioner and the first cavity, the first outlet is connected to the first cavity, and the first cavity is suitable for containing a fluid; The second tank body is provided with a second cavity, a second inlet and a second outlet, the second inlet is connected to the first outlet and the second cavity, the second outlet is connected to the second cavity and the refrigeration system, and the second cavity is suitable for containing fluid; A connecting pipeline connected between the first outlet and the second inlet; A heat exchange structure is provided in the connecting pipeline; A heat source, corresponding to the heat exchange structure, and used for exchanging heat with the heat exchange structure; Among them, the boiling point of the fluid is higher than the boiling point of the refrigerant in the refrigeration system.

2. The auxiliary heating device for air conditioning according to claim 1, characterized in that: The second tank body is higher than the first tank body, wherein the refrigerant flows through the first tank body and the second tank body in sequence in the auxiliary heating device.

3. The auxiliary heating device for air conditioning according to claim 1, characterized in that: Also includes: A pump body, arranged in the connecting pipeline, for driving the fluid in the first chamber to flow into the second chamber through the first outlet and the second inlet in sequence; and / or, The first switch is arranged at the first outlet and is used for controlling the on and off of the first outlet.

4. The auxiliary heating device for air conditioning according to claim 1, characterized in that: The first tank body is further provided with a first reflux inlet communicated with the first cavity, and the second tank body is further provided with a first reflux outlet communicated with the second cavity. The auxiliary heating device further includes: The first reflux pipeline is connected with the first reflux inlet and the first reflux outlet.

5. The auxiliary heating device for air conditioning according to claim 4, characterized in that: Also includes: The second switch and the third switch are both arranged in the first return pipeline, and are used to control the on and off of the first return pipeline; Wherein, along the direction of fluid reflux, the second switch and the third switch are arranged in sequence, and are configured so that in the case of fluid reflux, the opening degree of the second switch is greater than the opening degree of the third switch.

6. The auxiliary heating device for air conditioning according to any one of claims 1 to 5, characterized in that: The heat exchange structure includes: The heat exchange plate is provided with a first flow channel, the first flow channel includes a curved section, and the connecting pipeline passes through the first flow channel or the connecting pipeline is connected to the first flow channel.

7. The auxiliary heating device for air conditioning according to claim 6, characterized in that: Heat sources include: cold tanks, used to absorb solar energy; The hot tank is connected to the cold tank, and the heat storage medium in the cold tank is heated to a preset temperature by solar energy and then flows into the hot tank; Among them, the cold tank and the hot tank both correspond to the heat exchange structure and are used to exchange heat with the heat exchange structure.

8. The auxiliary heating device for air conditioning according to claim 7, characterized in that: The cold tank is provided with a third outlet and a second return inlet, and the heat source also includes: A first heat exchange tube is connected between the third outlet and the second reflux inlet. The heat exchange plate is further provided with a second flow channel, the second flow channel includes a curved section, the first heat exchange tube passes through the second flow channel or the first heat exchange tube is connected with the second flow channel; The hot tank is provided with a fourth outlet and a third reflux inlet, and the heat source also includes: A second heat exchange tube is connected between the fourth outlet and the third reflux inlet. The heat exchange plate is further provided with a third flow channel, the third flow channel includes a curved section, the second heat exchange tube passes through the third flow channel or the second heat exchange tube is connected to the third flow channel; The second flow channel and the third flow channel are located on two opposite sides of the first flow channel.

9. The auxiliary heating device for air conditioning according to claim 7, characterized in that: The cold tank is provided with a fourth reflux inlet, the hot tank is also provided with a second reflux outlet, and the heat source also includes: a second reflux pipeline connected between the fourth reflux inlet and the second reflux outlet, so that the heat storage medium in the hot tank can flow back to the cold tank through the second reflux pipeline; The fourth switch is arranged in the second return pipeline and is used for controlling the on-off of the second return pipeline.

10. An air conditioner, characterized in that: include: Refrigeration system; According to any one of claims 1 to 9, the auxiliary heating device for an air conditioner, the first inlet and the second outlet are both connected to a refrigeration system.

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