Connecting pipe assembly, air conditioner and control method of air conditioner

Abstract

The application provides a connecting pipe assembly, an air conditioner and a control method of the air conditioner. The connecting pipe assembly comprises a first pipe, a second pipe and a third pipe. The first pipe comprises a first connecting pipe. The second pipe comprises a second connecting pipe. The second connecting pipe is sleeved outside the first connecting pipe. The second connecting pipe cooperates with the first connecting pipe to form a second medium passage. The third pipe comprises a third connecting pipe. The third connecting pipe is sleeved outside the second connecting pipe. The third connecting pipe cooperates with the second connecting pipe to form a third medium passage. At least one of the first connecting pipe and the second connecting pipe comprises a semiconductor pipe. When the semiconductor pipe in the first connecting pipe and / or the second connecting pipe is powered off, the first connecting pipe and / or the second connecting pipe can be in a thermoelectric generation mode, so as to improve the waste heat recycling rate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a connecting pipe assembly, an air conditioner and a control method of the air conditioner. BACKGROUND

[0002] The existing air conditioner usually includes multiple pipes, and heat transfer fluid is transmitted to the target application scene through the pipes to realize heat exchange. The reheated fluid after heat exchange becomes the return heat transfer fluid, and the return heat transfer fluid is converted into the heat transfer fluid that can perform the next heat exchange cycle after processing, so as to continuously exchange heat for the target application scene. However, the existing air conditioner has low recycling rate of waste heat of the heat transfer fluid or the return heat transfer fluid in the circulation process. SUMMARY

[0003] The present application provides a connecting pipe assembly, an air conditioner and a control method of the air conditioner, aiming to improve the recycling rate of waste heat.

[0004] The present application provides a connecting pipe assembly for connecting an indoor unit and an outdoor unit of an air conditioner, the connecting pipe assembly comprising:

[0005] A first pipe comprising a first connecting pipe, a first medium channel being formed in the first connecting pipe;

[0006] A second pipe comprising a second connecting pipe, the second connecting pipe being sleeved outside the first connecting pipe, and the second connecting pipe and the first connecting pipe cooperating to form a second medium channel;

[0007] A third pipe comprising a third connecting pipe, the third connecting pipe being sleeved outside the second connecting pipe, and the third connecting pipe and the second connecting pipe cooperating to form a third medium channel;

[0008] At least one of the first connecting pipe and the second connecting pipe comprises a semiconductor pipeline; when the semiconductor pipeline in the first connecting pipe and / or the second connecting pipe is powered off, the first connecting pipe and / or the second connecting pipe can be in a thermoelectric generation mode.

[0009] In the connecting pipe assembly of the present application, the first connecting pipe comprises a semiconductor pipeline, and when the first connecting pipe is powered off, the first connecting pipe can be in a thermoelectric generation mode; and / or,

[0010] The second connecting pipe comprises a semiconductor pipeline, and when the second connecting pipe is powered off, the second connecting pipe can be in a thermoelectric generation mode; when the air conditioner is in a cooling mode and the second connecting pipe is powered on, the second connecting pipe can be in a dew removal mode.

[0011] In the connecting pipe assembly of the present application, a spiral structure is arranged on the second connecting pipe to support the first connecting pipe and / or the third connecting pipe.

[0012] In the connecting pipe assembly of the present application, the second medium channel comprises a spiral channel; and / or, the third medium channel comprises a spiral channel.

[0013] In the connecting pipe assembly of the present application, the outer surface of the second connecting pipe is formed with a first spiral groove, the bottom wall of the first spiral groove being in contact with the first connecting pipe; and / or, the inner surface of the second connecting pipe is formed with a second spiral groove, the bottom wall of the second spiral groove being in contact with the third connecting pipe.

[0014] In the connecting pipe assembly of the present application, the second connecting pipe comprises:

[0015] a spiral section;

[0016] a first connecting section connected and communicated with one end of the spiral section and penetrating through the first end of the third connecting pipe, the radial dimension of the end of the first connecting section away from the spiral section being smaller than the radial dimension of the end of the first connecting section close to the spiral section;

[0017] a second connecting section connected and communicated with the other end of the spiral section and penetrating through the second end of the third connecting pipe, the radial dimension of the end of the second connecting section away from the spiral section being smaller than the radial dimension of the end of the second connecting section close to the spiral section.

[0018] In the connecting pipe assembly of the present application, the first pipe further comprises:

[0019] a fourth connecting pipe connected and communicated with the first end of the first connecting pipe; and / or,

[0020] the second pipe further comprises a fifth connecting pipe and a sixth connecting pipe, the fifth connecting pipe and the sixth connecting pipe being connected and communicated with different parts of the second connecting pipe; and / or,

[0021] the third pipe further comprises:

[0022] a seventh connecting pipe connected and communicated with the third connecting pipe.

[0023] In the connecting pipe assembly of the present application, the first end of the second connecting pipe is provided with a first through hole and a first communication hole communicated with the second medium channel, the fifth connecting pipe is communicated with the first communication hole, and the fourth connecting pipe penetrates through the first through hole; and / or,

[0024] the second end of the second connecting pipe is provided with a second through hole, the side wall of the second connecting pipe is provided with a second communication hole adjacent to the second through hole and communicated with the second medium channel, the first connecting pipe penetrates through the second through hole, and the sixth connecting pipe is communicated with the second communication hole.

[0025] The present application further provides an air conditioner comprising:

[0026] an indoor unit;

[0027] an outdoor unit; and

[0028] The connecting pipe assembly of any one of the above, for connecting an indoor unit and an outdoor unit.

[0029] The application also provides a control method of an air conditioner, the air conditioner comprising the connecting pipe assembly of any one of the above, the second connecting pipe comprising a semiconductor pipe, the control method comprising:

[0030] obtaining an outer wall temperature of the second connecting pipe;

[0031] if the outer wall temperature is greater than or equal to a dew point temperature, cutting off power supply to the second connecting pipe, so that the second connecting pipe enters a thermoelectric generation mode.

[0032] In the control method of the application, the second connecting pipe is supplied with power to enter a dew removal mode within a first preset time length after the air conditioner is turned on; and / or,

[0033] if the outer wall temperature is less than the dew point temperature, the second connecting pipe is supplied with power to enter the dew removal mode.

[0034] In the control method of the application, if the outer wall temperature is greater than or equal to the dew point temperature, the power supply to the second connecting pipe is cut off, so that the second connecting pipe switches to the thermoelectric generation mode, comprising:

[0035] if the outer wall temperature is greater than or equal to the dew point temperature, the power supply to the second connecting pipe is cut off, so that the second connecting pipe switches from the dew removal mode to the thermoelectric generation mode.

[0036] In the control method of the application, the first connecting pipe comprises a semiconductor pipe, and the control method further comprises:

[0037] within a second preset time length after the air conditioner is turned on, the power supply to the first connecting pipe is cut off, so that the first connecting pipe enters the thermoelectric generation mode.

[0038] The connecting pipe assembly, the air conditioner and the control method of the air conditioner provided by the application can improve the recycling rate of waste heat.

[0039] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the disclosure of the embodiments of the application. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are some possible embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0041] Figure 1is a structural schematic view of an air conditioner provided by an embodiment of the present application;

[0042] Figure 2 is an installation schematic view of an air conditioner provided by an embodiment of the present application;

[0043] Figure 3 is a structural schematic view of a connecting pipe assembly provided by an embodiment of the present application;

[0044] Figure 4 is a sectional view of a connecting pipe assembly provided by an embodiment of the present application;

[0045] Figure 5 is a sectional view of a connecting pipe assembly provided by an embodiment of the present application;

[0046] Figure 6 is a structural schematic view of a second connecting pipe provided by an embodiment of the present application;

[0047] Figure 7 is a schematic view of a control method of an air conditioner provided by an embodiment of the present application.

[0048] Explanation of reference signs:

[0049] 100, connecting pipe assembly;

[0050] 10, first pipe; 101, first medium passage; 11, first connecting pipe; 12, fourth connecting pipe;

[0051] 20, second pipe; 201, second medium passage; 21, second connecting pipe; 211, spiral structure; 2111, first spiral groove; 2112, second spiral groove; 212, spiral section; 213, first connecting section; 214, second connecting section; 215, first through hole; 216, first communication hole; 217, second through hole; 218, second communication hole; 22, fifth connecting pipe; 23, sixth connecting pipe;

[0052] 30, third pipe; 301, third medium passage; 31, third connecting pipe; 311, third through hole; 312, third communication hole; 313, fourth through hole; 314, fourth communication hole; 32, seventh connecting pipe;

[0053] 200, indoor unit; 300, outdoor unit; 400, object. DETAILED DESCRIPTION

[0054] With reference to the drawings and the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are some of the embodiments of the present application but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts should fall within the scope of the present application.

[0055] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0056] It should also be understood that the terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the specification and the appended claims of the present application, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0057] It should be further understood that the term "and / or" used in the specification and the appended claims of the present application means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0058] Some possible embodiments of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments and features in the embodiments can be combined with each other without conflict.

[0059] Please refer to Figure 1 and Figure 2The embodiment of the present application provides an air conditioner, which comprises an indoor unit 200, an outdoor unit 300 and a connecting pipe assembly 100. The connecting pipe assembly 100 is used for connecting the indoor unit 200 and the outdoor unit 300. Exemplarily, one end of the connecting pipe assembly 100 is used for connecting the indoor unit 200, and the other end of the connecting pipe assembly 100 is used for connecting the outdoor unit 300. The connecting pipe assembly 100 is partially arranged in an object 400 (such as a wall or a shell).

[0060] It can be understood that, Figure 1 and Figure 2 Each dashed segment in the connecting pipe assembly 100 represents a different pipe, which can be a straight pipe, an elbow pipe or the like, and is not limited here.

[0061] Please refer to Figure 3 and Figure 4 In some possible embodiments, the connecting pipe assembly 100 comprises a first pipe 10, a second pipe 20 and a third pipe 30. The first pipe 10 comprises a first connecting pipe 11. The first connecting pipe 11 is formed with a first medium passage 101. The second pipe 20 comprises a second connecting pipe 21. The second connecting pipe 21 is sleeved outside the first connecting pipe 11. The second connecting pipe 21 and the first connecting pipe 11 cooperate to form a second medium passage 201. The third pipe 30 comprises a third connecting pipe 31. The third connecting pipe 31 is sleeved outside the second connecting pipe 21. The third connecting pipe 31 and the second connecting pipe 21 cooperate to form a third medium passage 301.

[0062] At least one of the first connecting pipe 11 and the second connecting pipe 21 comprises a semiconductor pipe. When the first connecting pipe 11 and / or the second connecting pipe 21 is powered off, the first connecting pipe 11 and / or the second connecting pipe 21 can be in a thermoelectric generation mode.

[0063] The connecting pipe assembly 100 of the above embodiment can be in the thermoelectric generation mode, and utilizes the temperature difference of different parts of the connecting pipe assembly 100 to generate electricity, so as to alleviate the invalid overheating phenomenon, and the electric energy generated by the temperature difference can be recycled and reused, thereby improving the utilization rate of waste heat, residual heat or redundant energy of the connecting pipe assembly 100.

[0064] In addition, the second connecting pipe 21 is sleeved outside the first connecting pipe 11, and the third connecting pipe 31 is sleeved outside the second connecting pipe 21, so that the first connecting pipe 11, the second connecting pipe 21 and the third connecting pipe 31 are nested, and different connecting pipes can lead out or lead in the medium on the same side, thereby improving the integration of the connecting pipe assembly 100 and reducing the space occupancy of the connecting pipe assembly 100. When the connecting pipe assembly 100 needs to pass through the object 400 to ensure that the two ends of the connecting pipe assembly 100 are arranged on opposite sides of the object 400, the connecting pipe assembly 100 can be conveniently disassembled, which is beneficial to effectively save the disassembly process and time, and the connecting pipe assembly 100 can adapt to more complex installation environments.

[0065] For example, when the connecting pipe assembly 100 needs to be disassembled through the wall, the connecting pipe assembly 100 can be partially arranged in the wall, and the two ends of the connecting pipe assembly 100 are arranged on opposite sides of the wall, which can adapt to complex wall environments.

[0066] In addition, the nesting of the first connecting pipe 11, the second connecting pipe 21 and the third connecting pipe 31 facilitates installation, and the holes on the object 400 are less or do not need to be expanded; and the pipeline of the air conditioner is more orderly, and the aesthetic degree is improved.

[0067] Exemplarily, the first connecting pipe 11 and / or the second connecting pipe 21 comprises a pipe made of at least one of SiC semiconductor, GaN semiconductor, AlN semiconductor and ZnSe semiconductor.

[0068] Exemplarily, the third connecting pipe 31 can be made of any suitable material, such as a plastic pipe, a semiconductor pipe or a copper pipe.

[0069] In some embodiments, referring to Figure 7 The application also provides a control method of an air conditioner, which can refer to the air conditioner of any embodiment of the application.

[0070] Exemplarily, the power supply device can supply power to at least one of the first connecting pipe 11 and the second connecting pipe 21, or disconnect the power supply of the first connecting pipe 11 and / or the second connecting pipe 21. The power supply device can be the above-mentioned battery or other devices capable of providing electric energy.

[0071] It can be understood that at least one of the first connecting pipe 11 and the second connecting pipe 21 comprises a semiconductor pipe. When the first connecting pipe 11 and / or the second connecting pipe 21 is powered off, the first connecting pipe 11 and / or the second connecting pipe 21 can be in a thermoelectric generation mode, including the following three schemes:

[0072] Scheme a) the first connecting pipe 11 comprises a semiconductor pipe, when the first connecting pipe 11 is powered off, the first connecting pipe 11 can be in a thermoelectric generation mode. In this way, the temperature difference formed by the different heat conducting parts of the first connecting pipe 11 can be used to generate electricity, thereby relieving the phenomenon of invalid overheating, and the electricity generated by the temperature difference can be recycled and reused, improving the utilization rate of waste heat, residual heat or redundant energy.

[0073] Scheme b) the second connecting pipe 21 comprises a semiconductor pipe, when the second connecting pipe 21 is powered off, the second connecting pipe 21 can be in a thermoelectric generation mode. In this way, the temperature difference formed by the different heat conducting parts of the second connecting pipe 21 can be used to generate electricity, thereby relieving the phenomenon of invalid overheating, and the electricity generated by the temperature difference can be recycled and reused, improving the recycling rate of waste heat, residual heat or redundant energy.

[0074] Scheme c) the first connecting pipe 11 and the second connecting pipe 21 both comprise a semiconductor pipe, when the first connecting pipe 11 is powered off, the first connecting pipe 11 can be in a thermoelectric generation mode; when the second connecting pipe 21 is powered off, the second connecting pipe 21 can be in a thermoelectric generation mode. In this way, the temperature difference formed by the different heat conducting parts of the first connecting pipe 11 can be used to generate electricity, and the temperature difference formed by the different heat conducting parts of the second connecting pipe 21 can be used to generate electricity, thereby effectively relieving the phenomenon of invalid overheating, and the electricity generated by the temperature difference can be recycled and reused, improving the recycling rate of waste heat, residual heat or redundant energy.

[0075] Exemplarily, the power supply of the first connecting pipe 11 is disconnected, that is, the first connecting pipe 11 is powered off. The power supply of the second connecting pipe 21 is disconnected, that is, the second connecting pipe 21 is powered off.

[0076] Exemplarily, the first connecting pipe 11 comprises a semiconductor pipe. When the first connecting pipe 11 is in a thermoelectric generation mode, the inner wall and the outer wall of the first connecting pipe 11 can form a first preset temperature difference, generate an electric current through the Seebeck effect, and can guide the electric current to the positive and negative electrodes of an energy storage device (such as a battery), and can charge the energy storage device. In this way, on the one hand, the phenomenon of invalid overheating can be relieved, and on the other hand, the recycling of heat energy can be realized, thereby providing additional energy for the air conditioner, improving the utilization rate of waste heat, residual heat or redundant energy, and being conducive to energy saving and environmental protection.

[0077] Exemplarily, in the case where the first connecting pipe 11 is powered off, if the first medium in the first medium channel 101 flows through the inner wall of the first connecting pipe 11, and the second medium in the second medium channel 201 flows through the outer wall of the first connecting pipe 11, thereby causing a temperature difference between the inner wall of the first connecting pipe 11 and the outer wall of the first connecting pipe 11, the first connecting pipe 11 can generate an electric current.

[0078] Exemplarily, the second connecting pipe 21 comprises a semiconductor pipe. When the second connecting pipe 21 is in the thermoelectric generation mode, the inner wall and the outer wall of the second connecting pipe 21 can form a second preset temperature difference, generate an electric current through the Seebeck effect, and can conduct the electric current to the positive and negative poles of an energy storage device (such as a battery), and can charge the energy storage device. Thus, on the one hand, the invalid overheating phenomenon can be alleviated, and on the other hand, the heat energy can be recycled, thereby providing additional energy for the air conditioner, and improving the utilization rate of waste heat, residual heat or redundant energy, which is conducive to energy saving and environmental protection.

[0079] In the case that the second connecting pipe 21 is powered off, if the second medium in the second medium channel 201 flows through the inner wall of the second connecting pipe 21, and the third medium in the third medium channel 301 flows through the outer wall of the second connecting pipe 21, so that the inner wall of the second connecting pipe 21 and the outer wall of the second connecting pipe 21 generate a temperature difference, the second connecting pipe 21 can generate an electric current.

[0080] The first preset temperature difference and the second preset temperature difference can be set according to actual needs, and can be the same or different, which is not limited here.

[0081] Exemplarily, one of the first medium and the second medium is a gaseous refrigerant, and the other is a liquid refrigerant. The third medium is fresh air. It can be understood that the nested arrangement of the first connecting pipe 11, the second connecting pipe 21 and the third connecting pipe 31 can reduce the influence of fresh air on the heating / cooling effect.

[0082] Exemplarily, the first medium is a liquid refrigerant, and the second medium is a gaseous refrigerant. When the air conditioner is in the cooling mode and the second connecting pipe 21 is powered on, the outer wall of the second connecting pipe 21 is heated, and the inner wall of the second connecting pipe 21 is cooled. In this way, the heated outer wall of the second connecting pipe 21 can alleviate the condensate or condensed water on the outer wall of the second connecting pipe 21, and the cooled inner wall of the second connecting pipe 21 can improve the heat exchange efficiency between the second connecting pipe 21 and the second medium in the second medium channel 201.

[0083] Exemplarily, when the air conditioner is in the cooling mode and the second connecting pipe 21 is powered off, the second connecting pipe 21 is in the thermoelectric generation mode. Exemplarily, when the air conditioner is in the heating mode and the second connecting pipe 21 is powered off, the second connecting pipe 21 is in the thermoelectric generation mode.

[0084] In some possible embodiments, when the air conditioner is in the cooling mode or the heating mode, the power supply of the first connecting pipe 11 is turned off to make the first connecting pipe 11 in the thermoelectric generation mode; when the air conditioner is in the cooling mode or the heating mode, the power supply of the second connecting pipe 21 is turned off to make the second connecting pipe 21 in the thermoelectric generation mode.

[0085] In some possible embodiments, the first medium is a liquid refrigerant, and the second medium is a gaseous refrigerant. When the air conditioner is in the cooling mode and the first connecting pipe 11 is powered off, the first medium in the first medium channel 101 and the second medium in the second medium channel 201 have a temperature difference, so that the outer wall and the inner wall of the first connecting pipe 11 have a first preset temperature difference. By using the first preset temperature difference, the first connecting pipe 11 can generate a corresponding current, and the generated electric energy can be stored in the energy storage device. When the air conditioner is in the cooling mode and the second connecting pipe 21 is powered off, the second medium in the second medium channel 201 and the third medium in the third medium channel 301 have a temperature difference, so that the outer wall and the inner wall of the second connecting pipe 21 have a second preset temperature difference. By using the second preset temperature difference, the second connecting pipe 21 can generate a corresponding current, and the generated electric energy can be stored in the energy storage device.

[0086] Exemplarily, in the cooling mode, the temperature of the third medium in the third medium channel 301 is greater than the temperature of the second medium in the second medium channel 201. The temperature of the second medium in the second medium channel 201 is greater than the temperature of the first medium in the first medium channel 101.

[0087] In some possible embodiments, the first medium is a liquid refrigerant, and the second medium is a gaseous refrigerant. When the air conditioner is in the cooling mode and the first connecting pipe 11 is powered off, the first medium in the first medium channel 101 and the second medium in the second medium channel 201 have a temperature difference, so that the outer wall and the inner wall of the first connecting pipe 11 have a first preset temperature difference. By using the first preset temperature difference, the first connecting pipe 11 can generate a corresponding current, and the generated electric energy can be stored in the energy storage device. When the air conditioner is in the cooling mode and the second connecting pipe 21 is powered off, the second medium in the second medium channel 201 and the third medium in the third medium channel 301 have a temperature difference, so that the outer wall and the inner wall of the second connecting pipe 21 have a second preset temperature difference. By using the second preset temperature difference, the second connecting pipe 21 can generate a corresponding current, and the generated electric energy can be stored in the energy storage device.

[0088] Exemplarily, in the cooling mode, the temperature of the third medium in the third medium channel 301 is greater than the temperature of the second medium in the second medium channel 201. The temperature of the second medium in the second medium channel 201 is greater than the temperature of the first medium in the first medium channel 101.

[0089] In some possible embodiments, the second connecting pipe 21 comprises a semiconductor pipe, and the second connecting pipe 21 can be in a thermoelectric generation mode when the second connecting pipe 21 is powered off. When the air conditioner is in the cooling mode and the second connecting pipe 21 is powered on, the second connecting pipe 21 can be in a dew removal mode. In this way, the condensate water can be prevented from being generated on the outer wall of the second connecting pipe 21, the influence of the condensate water on the connecting pipe assembly 100 can be reduced, or the condensate water can be prevented from flowing to the wall or the indoor space, and the use comfort of the user and the product competitiveness of the air conditioner can be improved.

[0090] In some possible embodiments, the second connecting pipe 21 is powered on so that the second connecting pipe 21 is in the dew removal mode, thereby preventing the condensate water from being generated on the outer wall of the second connecting pipe 21.

[0091] For example, the second connecting pipe 21 is powered on, that is, the second connecting pipe 21 is powered on.

[0092] In some embodiments, when the air conditioner is in the cooling mode and the second connecting pipe 21 is powered on, the temperature of the outer wall of the second connecting pipe 21 is greater than the temperature of the inner wall of the second connecting pipe 21. For example, when the air conditioner is in the cooling mode and the second connecting pipe 21 is powered on, the outer wall of the second connecting pipe 21 is heated, the inner wall of the second connecting pipe 21 is cooled, and the second connecting pipe 21 is in the dew removal mode.

[0093] For example, when the air conditioner is in the cooling mode and the second connecting pipe 21 is powered on, the second connecting pipe 21 is in the dew removal mode.

[0094] In some possible embodiments, when the air conditioner is in the cooling mode, the second connecting pipe 21 is powered on so that the second connecting pipe 21 is in the dew removal mode.

[0095] The first connecting pipe 11, the second connecting pipe 21 and the third connecting pipe 31 can all be designed into any suitable shape according to actual needs, such as a circular pipe, a spiral pipe, a serpentine pipe, a straight pipe or a curved pipe.

[0096] For example, the first connecting pipe 11, the second connecting pipe 21 and the third connecting pipe 31 can all be designed into a circular pipe. Figure 4 For example, the first connecting pipe 11, the second connecting pipe 21 and the third connecting pipe 31 can all be designed into a circular pipe. Figure 5 In some possible embodiments, the second connecting pipe 21 is provided with a spiral structure 211 to support the first connecting pipe 11 and / or the third connecting pipe 31. It can be understood that, in order to adapt to the installation requirements or complex installation environment, a pipe segment of the connecting pipe assembly 100 is usually bent relative to another pipe segment. The spiral structure 211 can support the first connecting pipe 11 and / or the third connecting pipe 31, and improve the anti-deformation capability of the connecting pipe assembly 100 at the bending position.

[0097] For example, the first connecting pipe 11, the second connecting pipe 21 and the third connecting pipe 31 can all be designed into a circular pipe. Figure 4In some possible embodiments, the second medium passage 201 comprises a spiral passage; and / or, the third medium passage 301 comprises a spiral passage. In this way, not only can the heat exchange area between the second medium and the passage wall of the second medium passage 201 be increased, and the heat exchange efficiency be improved; but also the second connecting pipe 21 can reliably support the first connecting pipe 11 and / or the third connecting pipe 31.

[0098] Please refer to Figure 4 and Figure 5 For example, the first connecting pipe 11 and the third connecting pipe 31 are both in contact with the second connecting pipe 21, so that the second connecting pipe 21 can simultaneously support the first connecting pipe 11 and the third connecting pipe 31.

[0099] Please refer to Figure 4 and Figure 5 In some possible embodiments, the outer surface of the second connecting pipe 21 is formed with a first spiral groove 2111, and the bottom wall of the first spiral groove 2111 is in contact with the first connecting pipe 11, so that the second connecting pipe 21 can reliably support the first connecting pipe 11. The inner surface of the second connecting pipe 21 is formed with a second spiral groove 2112, and the bottom wall of the second spiral groove 2112 is in contact with the third connecting pipe 31, so that the second connecting pipe 21 can reliably support the third connecting pipe 31.

[0100] Please refer to Figure 4 and Figure 6 In some possible embodiments, the second connecting pipe 21 comprises a spiral segment 212, a first connecting segment 213 and a second connecting segment 214. The first connecting segment 213 is connected to and communicates with one end of the spiral segment 212. The first connecting segment 213 penetrates the first end of the third connecting pipe 31. The second connecting segment 214 is connected to and communicates with the other end of the spiral segment 212. The second connecting segment 214 penetrates the second end of the third connecting pipe 31. The first spiral groove 2111 is arranged on the outer surface of the spiral segment 212, and the second spiral groove 2112 is arranged on the inner surface of the spiral segment 212.

[0101] For example, the radial dimension of the first connecting segment 213 away from one end of the spiral segment 212 is smaller than the radial dimension of the first connecting segment 213 close to one end of the spiral segment 212, so as to reduce the overall occupied space of the connecting pipe assembly 100; and / or, reduce the cross-sectional area occupied by the connecting pipe assembly 100 when passing through the object 400, and reduce the cross-sectional area of the hole opened on the object 400 when installation. The radial dimension of the second connecting segment 214 away from one end of the spiral segment 212 is smaller than the radial dimension of the second connecting segment 214 close to one end of the spiral segment 212, so as to reduce the overall occupied space of the connecting pipe assembly 100.

[0102] For example, the spiral segment 212 is a spiral pipe, and the first connecting segment 213 and the second connecting segment 214 are circular pipes.

[0103] Referring to Figure 4 and Figure 5 In some possible embodiments, the first connecting pipe 11, the second connecting pipe 21 and the third connecting pipe 31 are coaxially arranged to ensure that the second connecting pipe 21 can effectively support the first connecting pipe 11 and the third connecting pipe 31. In other embodiments, at least two of the first connecting pipe 11, the second connecting pipe 21 and the third connecting pipe 31 can be arranged in a non-coaxial manner.

[0104] Referring to Figure 4 In some possible embodiments, the first pipeline 10 further comprises a fourth connecting pipe 12. The fourth connecting pipe 12 is connected to and communicates with the first end of the first connecting pipe 11. Exemplarily, the fourth connecting pipe 12 is used to directly connect or connect the outdoor unit 300 through an auxiliary pipeline.

[0105] Referring to Figure 4 The second pipeline 20 further comprises a fifth connecting pipe 22 and a sixth connecting pipe 23. The fifth connecting pipe 22 and the sixth connecting pipe 23 are respectively connected to and communicate with different parts of the second connecting pipe 21. Exemplarily, the fifth connecting pipe 22 is used to directly connect or connect the outdoor unit 300 through an auxiliary pipeline. The sixth connecting pipe 23 is used to directly connect or connect the indoor unit 200 through an auxiliary pipeline.

[0106] Referring to Figure 4 The first end of the second connecting pipe 21 is provided with a first through hole 215 and a first communication hole 216 communicating with the second medium passage 201. The fifth connecting pipe 22 communicates with the first communication hole 216, and the fourth connecting pipe 12 penetrates the first through hole 215.

[0107] Exemplarily, the axis of the first communication hole 216 and the first through hole 215 are parallel.

[0108] Referring to Figure 4 In some possible embodiments, the second end of the second connecting pipe 21 is provided with a second through hole 217. The first connecting pipe 11 penetrates the second through hole 217. The side wall of the second connecting pipe 21 is provided with a second communication hole 218 adjacent to the second through hole 217 and communicating with the second medium passage 201. The sixth connecting pipe 23 communicates with the second communication hole 218. The second communication hole 218 is arranged on the side wall of the second connecting pipe 21, and the second communication hole 218 is arranged adjacent to the second through hole 217, which can as much as possible increase the flow path of the second medium in the second medium passage 201 and improve the heat exchange effect.

[0109] Referring to Figure 4 In some possible embodiments, the third pipeline 30 further comprises a seventh connecting pipe 32. The seventh connecting pipe 32 is connected to and communicates with the third connecting pipe 31. Exemplarily, the seventh connecting pipe 32 is used for the fresh air device of the indoor unit 200 to communicate.

[0110] Please see Figure 4 In some possible embodiments, the first end of the third connecting pipe 31 is provided with a third through hole 311 and a third connecting hole 312 communicating with the third medium channel 301. The second connecting pipe 21 passes through the third through hole 311.

[0111] Please see Figure 4 In some possible embodiments, the second end of the third connecting pipe 31 is provided with a fourth through hole 313, and the side wall of the third connecting pipe 31 is provided with a fourth connecting hole 314 adjacent to the fourth through hole 313. The fourth connecting hole 314 communicates with the third medium channel 301. The second connecting pipe 21 passes through the fourth through hole 313, and the seventh connecting pipe 32 communicates with the fourth connecting hole 314. The fourth connecting hole 314 is provided on the side wall of the third connecting pipe 31, and the fourth through hole 313 and the fourth connecting hole 314 are arranged adjacent to each other, which can maximize the flow path of the third medium in the third medium channel 301 and improve the heat exchange effect.

[0112] Please see Figure 4 For example, the first connecting segment 213 of the second connecting pipe 21 passes through the third through hole 311, and the second connecting segment 214 of the second connecting pipe 21 passes through the fourth through hole 313.

[0113] Please see Figure 3 and Figure 4 In some possible embodiments, the maximum cross-sectional dimension of one end of the connecting pipe assembly 100 is greater than the maximum cross-sectional dimension of the other end of the connecting pipe assembly 100, so as to minimize the cross-sectional area of ​​the hole in the object 400 and the cross-sectional area occupied by the entire connecting pipe assembly 100 when it is installed through the object 400.

[0114] Please see Figure 7 The present invention also provides a control method for an air conditioner, which can refer to any of the above embodiments.

[0115] In some possible embodiments, the second connecting tube includes a semiconductor conduit. See also... Figure 7 The control method includes steps S101 and S102.

[0116] Step S101: Obtain the outer wall temperature of the second connecting pipe.

[0117] For example, the air conditioner includes a first temperature sensor. The outer wall temperature of the second connecting pipe is detected by the first temperature sensor. The outer wall temperature of the second connecting pipe obtained in step S101 is the same as the outer wall temperature of the second connecting pipe detected by the first temperature sensor.

[0118] Exemplarily, the outer wall temperature of the second connecting pipe can be acquired in real time or at a timing.

[0119] In step S102, if the outer wall temperature is greater than or equal to the dew point temperature, the power supply of the second connecting pipe is disconnected, so that the second connecting pipe enters the thermoelectric generation mode.

[0120] Exemplarily, if the outer wall temperature of the second connecting pipe is greater than or equal to the dew point temperature, the power supply of the second connecting pipe is disconnected.

[0121] Exemplarily, the power supply of the second connecting pipe is disconnected, that is, the second connecting pipe is powered off.

[0122] In some possible implementation manners, if the outer wall temperature is less than the dew point temperature, the second connecting pipe is supplied with power so that the second connecting pipe enters the dew removal mode.

[0123] In some possible implementation manners, the control method further includes acquiring a current environmental humidity where the connecting pipe assembly is located; and determining the dew point temperature corresponding to the current environmental humidity from a preset humidity-dew point mapping relationship.

[0124] It can be understood that in the preset humidity-dew point mapping relationship, the environmental humidity and the dew point temperature have a corresponding relationship. After the current environmental humidity is acquired, the corresponding dew point temperature is determined from the preset humidity-dew point mapping relationship according to the current environmental humidity.

[0125] Exemplarily, the air conditioner includes a humidity sensor. The acquired current environmental humidity where the connecting pipe assembly is located is the current environmental humidity of the current environment where the connecting pipe assembly is located detected by the humidity sensor.

[0126] In some possible implementation manners, the control method further includes acquiring a current environmental air pressure where the connecting pipe assembly is located; and determining the dew point temperature corresponding to the current environmental air pressure from a preset air pressure-dew point mapping relationship.

[0127] It can be understood that in the preset air pressure-dew point mapping relationship, the environmental air pressure and the dew point temperature have a corresponding relationship. After the current environmental air pressure is acquired, the corresponding dew point temperature is determined from the preset air pressure-dew point mapping relationship according to the current environmental air pressure.

[0128] Exemplarily, the air conditioner includes an air pressure sensor. The acquired current environmental air pressure where the connecting pipe assembly is located is the current environmental air pressure of the current environment where the connecting pipe assembly is located detected by the air pressure sensor.

[0129] In some possible implementation manners, the second connecting pipe is supplied with power so that the second connecting pipe enters the dew removal mode within a first preset time length after the air conditioner is turned on.

[0130] Exemplarily, the first preset time length can be set according to actual requirements, such as 0, 30 min or 1 h, and the like, which is not limited herein.

[0131] In some possible embodiments, if the outer wall temperature is greater than or equal to the condensation point temperature, the power supply of the second connecting pipe is disconnected, so that the second connecting pipe switches to the thermoelectric generation mode, comprising:

[0132] If the outer wall temperature is greater than or equal to the condensation point temperature, the power supply of the second connecting pipe is disconnected, so that the second connecting pipe switches from the dew removal mode to the thermoelectric generation mode.

[0133] Exemplarily, when the air conditioner is started, the power supply of the second connecting pipe is connected, so that the second connecting pipe enters the dew removal mode. When the outer wall temperature of the second connecting pipe is greater than or equal to the condensation point temperature, the power supply of the second connecting pipe is disconnected, so that the second connecting pipe switches from the dew removal mode to the thermoelectric generation mode.

[0134] In some possible embodiments, the first connecting pipe comprises a semiconductor pipe. The control method further comprises:

[0135] In a second preset time length after the air conditioner is started, the power supply of the first connecting pipe is disconnected, so that the first connecting pipe enters the thermoelectric generation mode.

[0136] Exemplarily, the second preset time length can be designed according to actual requirements, such as 0, 30 min or 1 h, and the like, which is not limited herein.

[0137] Exemplarily, the power supply of the first connecting pipe is disconnected, that is, the first connecting pipe is powered off.

[0138] In the control method of the above embodiments, the second connecting pipe comprises a semiconductor pipe. When the second connecting pipe is in the thermoelectric generation mode, the invalid overheating phenomenon can be alleviated, and on the other hand, the heat energy can be recycled, so as to provide additional energy for the air conditioner, and improve the utilization rate of waste heat, residual heat or redundant energy, which is conducive to energy saving and environmental protection.

[0139] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected. It can be mechanically connected, or electrically connected. It can be directly connected, or indirectly connected through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0140] In the present application, unless specifically defined otherwise, a first feature "on" or "under" a second feature can include the first and second features being directly in contact with each other, or the first and second features not being directly in contact with each other but being in contact with each other through another feature between them. Also, the first feature "over", "above" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or only indicating that the first feature is higher in horizontal level than the second feature. The first feature "under", "below" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or only indicating that the first feature is lower in horizontal level than the second feature.

[0141] The above disclosure provides many different embodiments or examples for implementing different structures of the present application. For the purpose of simplification, the components and arrangements of specific examples are described in the above. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0142] In the description of the present application, the description of the terms "one embodiment", "some possible embodiments", "illustrative embodiment", "example", "specific example", or "some examples" and the like means that the specific method steps, features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific method steps, features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0143] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A connecting pipe assembly for connecting an indoor unit and an outdoor unit of an air conditioner, characterized by, The connecting pipe assembly comprises: A first pipe comprising a first connecting pipe in which a first medium passage is formed; A second pipe comprising a second connecting pipe which is sleeved outside the first connecting pipe and cooperates with the first connecting pipe to form a second medium passage; A third pipe comprising a third connecting pipe which is sleeved outside the second connecting pipe and cooperates with the second connecting pipe to form a third medium passage; At least one of the first connecting pipe and the second connecting pipe comprises a semiconductor pipe, and when the semiconductor pipe of the second connecting pipe is powered off, the first connecting pipe and / or the second connecting pipe can be in a thermoelectric generation mode; At least two of the first connecting pipe, the second connecting pipe and the third connecting pipe are coaxially arranged; The second connecting pipe is provided with a spiral structure, the outer surface of the second connecting pipe is formed with a first spiral groove, so that the third medium passage comprises a spiral passage, and the inner surface of the second connecting pipe is formed with a second spiral groove, so that the second medium passage comprises a spiral passage; the projections of the second medium passage and the third medium passage in the extension direction of the second connecting pipe at least partially coincide.

2. The connecting tube assembly of claim 1, wherein The first connecting pipe comprises a semiconductor pipe, and when the first connecting pipe is powered off, the first connecting pipe can be in a thermoelectric generation mode; and / or, The second connecting pipe comprises a semiconductor pipe, and when the second connecting pipe is powered off, the second connecting pipe can be in a thermoelectric generation mode; when the air conditioner is in a cooling mode and the second connecting pipe is powered on, the second connecting pipe can be in a dew removal mode.

3. The connecting tube assembly of claim 1, wherein, The second connecting pipe is provided with a spiral structure to support the first connecting pipe and / or the third connecting pipe.

4. The connecting tube assembly of claim 3, wherein The second medium passage comprises a spiral passage; and / or, the third medium passage comprises a spiral passage.

5. The connecting tube assembly of claim 4, wherein, The outer surface of the second connecting pipe is formed with a first spiral groove, and the bottom wall of the first spiral groove is in contact with the first connecting pipe; and / or, the inner surface of the second connecting pipe is formed with a second spiral groove, and the bottom wall of the second spiral groove is in contact with the third connecting pipe.

6. The connecting tube assembly of claim 3, wherein The second connecting pipe comprises: A spiral section; A first connecting section connected and communicated with one end of the spiral section and penetrating through a first end of the third connecting pipe, the radial dimension of the end of the first connecting section away from the spiral section being smaller than the radial dimension of the end of the first connecting section close to the spiral section; A second connecting section connected and communicated with the other end of the spiral section and penetrating through a second end of the third connecting pipe, the radial dimension of the end of the second connecting section away from the spiral section being smaller than the radial dimension of the end of the second connecting section close to the spiral section.

7. The connecting tube assembly according to any one of claims 1-6, wherein The first pipe further comprises: A fourth connecting pipe connected and communicated with a first end of the first connecting pipe; and / or, The second pipe further comprises a fifth connecting pipe and a sixth connecting pipe, the fifth connecting pipe and the sixth connecting pipe being connected and communicated with different parts of the second connecting pipe, respectively; and / or, The third pipe further comprises: A seventh connecting pipe is connected to and communicates with the third connecting pipe.

8. The connecting tube assembly of claim 7, wherein, The first end of the second connecting pipe is provided with a first through hole and a first communicating hole communicating with the second medium channel, the fifth connecting pipe communicates with the first communicating hole, and the fourth connecting pipe penetrates through the first through hole; and / or The second end of the second connecting pipe is provided with a second through hole, the sidewall of the second connecting pipe is provided with a second communicating hole adjacent to the second through hole and communicating with the second medium channel, the first connecting pipe penetrates through the second through hole, and the sixth connecting pipe communicates with the second communicating hole.

9. An air conditioner characterized by comprising: Comprise: An indoor unit; An outdoor unit; And The connecting pipe assembly of any one of claims 1-8 is used to connect the indoor unit and the outdoor unit.

10. A control method of an air conditioner, characterized by, The air conditioner comprises the connecting pipe assembly of any one of claims 1-8, the second connecting pipe comprises a semiconductor pipe, and the control method comprises: Obtaining an outer wall temperature of the second connecting pipe; If the outer wall temperature is greater than or equal to a condensation point temperature, disconnecting power supply of the second connecting pipe to make the second connecting pipe enter a thermoelectric generation mode.

11. The control method according to claim 10, characterized by, Within a first preset time length during which the air conditioner is turned on, supplying power to the second connecting pipe to make the second connecting pipe enter a dew removal mode; and / or If the outer wall temperature is less than the condensation point temperature, supplying power to the second connecting pipe to make the second connecting pipe enter the dew removal mode.

12. The control method according to claim 10, characterized by, The if the outer wall temperature is greater than or equal to the condensation point temperature, disconnecting the power supply of the second connecting pipe to make the second connecting pipe switch to the thermoelectric generation mode, comprises: If the outer wall temperature is greater than or equal to the condensation point temperature, disconnecting the power supply of the second connecting pipe to make the second connecting pipe switch from the dew removal mode to the thermoelectric generation mode.

13. The control method according to any one of claims 10 to 12, characterized in that, The first connecting pipe comprises a semiconductor pipe, and the control method further comprises: Within a second preset time length during which the air conditioner is turned on, disconnecting the power supply of the first connecting pipe to make the first connecting pipe enter the thermoelectric generation mode.

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