Air conditioner

Abstract

The invention provides an air conditioner which comprises a main body provided with a heat exchange air duct and a fresh air duct; the refrigerant heat exchange device is provided with a first refrigerant flow path, and at least part of the refrigerant heat exchange device is arranged in the heat exchange air duct; and the refrigerant heat exchange piece is provided with a second refrigerant flow path, at least part of the refrigerant heat exchange piece is arranged in the fresh air duct, and the first refrigerant flow path and the second refrigerant flow path communicate in series. According to the air conditioner, the first refrigerant flow path and the second refrigerant flow path are communicated in series, and the refrigerant heat exchange piece can be directly connected to the refrigerant heat exchange device, so that the pipeline for connecting the refrigerant heat exchange device and the refrigerant heat exchange piece is simple in structure and small in required length, and the air blowing effect of a fresh air conditioner indoor unit in the related technology can be achieved; in addition, due to the fact that the refrigerant heat exchange piece must be kept in the conducting state all the time, valves do not need to be arranged at the two ends of the refrigerant heat exchange piece, and the structures of the two ends of the refrigerant heat exchange piece are simpler.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and more specifically, to an air conditioner. Background Art

[0002] The related art provides a fresh air air conditioner indoor unit (CN108397829A), comprising: a casing, an air supply fan and a main heat exchanger are arranged inside, and the casing has an air inlet at the top and an air supply port at the bottom; a fresh air device is arranged at one end of the casing; the fresh air device comprises an air inlet module and a fan module connected to the air inlet module; an air inlet cavity is defined inside the air inlet module, and an air inlet is arranged at the lower rear of the air inlet module for introducing outdoor air into the air inlet cavity; the fan module comprises a centrifugal fan and a volute arranged outside the centrifugal fan; the air inlet of the volute is connected to the air inlet cavity, and its air outlet faces the top of the casing, and the fan A purification module is provided inside the air outlet of the module, and an auxiliary heat exchanger is provided at the bottom of the purification module; the centrifugal fan is configured to inhale air from the outside of the air inlet chamber, and discharge it from the air outlet of the volute after passing through the auxiliary heat exchanger and the purification module in sequence; and the auxiliary heat exchanger and the main heat exchanger are arranged in parallel, so that the refrigerant enters the main heat exchanger and the auxiliary heat exchanger for heat exchange respectively, and converges after heat exchange; and a valve is provided at the cold end inlet of the auxiliary heat exchanger to control the opening and closing of the auxiliary heat exchanger; the air supply fan is also configured to inhale at least part of the air discharged by the centrifugal fan from the air inlet at the top of the casing, so as to discharge it from the air supply port at the bottom of the casing after heat exchange with the main heat exchanger. This solution has the following problems:

[0003] 1) The auxiliary heat exchanger and the main heat exchanger are arranged in parallel. The parallel arrangement determines that the structure of the pipeline connecting the auxiliary heat exchanger and the main heat exchanger is relatively complex and the length is relatively long;

[0004] 2) A valve is provided at the cold end inlet of the auxiliary heat exchanger to control the opening and closing of the auxiliary heat exchanger, so the structure at the cold end inlet of the auxiliary heat exchanger is relatively complicated. Summary of the invention

[0005] The present application provides an air conditioner, in which the pipeline connecting the refrigerant heat exchange device and the refrigerant heat exchange element has a simple structure and a short required length.

[0006] An embodiment of the present invention provides an air conditioner, comprising: a main body, provided with a heat exchange duct and a fresh air duct; a refrigerant heat exchange device having a first refrigerant flow path, at least partially disposed in the heat exchange duct; and a refrigerant heat exchange component having a second refrigerant flow path, at least partially disposed in the fresh air duct, and the first refrigerant flow path and the second refrigerant flow path are connected in series.

[0007] In some exemplary embodiments, the air conditioner further includes: a heat sink located in the fresh air duct and provided on the refrigerant heat exchange component.

[0008] In some exemplary embodiments, the refrigerant heat exchange component includes: a heat exchange tube, the first refrigerant flow path is connected to the heat exchange tube in series, and the second refrigerant flow path is formed inside the heat exchange tube.

[0009] In some exemplary embodiments, the heat exchange tube includes a U-shaped tube segment and two connecting tube segments, the U-shaped tube segment is located between the two connecting tube segments and is connected in series with the first refrigerant flow path through the two connecting tube segments, and the heat sink is placed horizontally on the two vertical tubes of the U-shaped tube segment.

[0010] In some exemplary embodiments, the plane where the axis of the U-shaped pipe segment lies intersects with the axis of the fresh air duct.

[0011] In some exemplary embodiments, the heat exchange tube further includes two extended pipe segments, the two extended pipe segments are located in the fresh air duct, and both ends of the U-shaped pipe segment are connected to the two connecting pipe segments through the two extended pipe segments.

[0012] In some exemplary embodiments, the heat sink includes at least one of a heat conductive wire and a heat conductive fin.

[0013] In some exemplary embodiments, the refrigerant heat exchange component includes a plurality of refrigerant heat exchange components, the plurality of second refrigerant flow paths are connected in series with the first refrigerant flow path, and the heat sink is provided on the plurality of refrigerant heat exchange components at the same time.

[0014] In some exemplary embodiments, the air conditioner also includes: a fresh air fan, which is arranged in the fresh air duct, and an air inlet cavity is formed between the air inlet of the fresh air fan and the air inlet of the fresh air duct, and the air inlet cavity is adjacent to one end of the refrigerant heat exchange device, and the refrigerant heat exchange element is at least partially located in the air inlet cavity.

[0015] In some exemplary embodiments, the refrigerant heat exchange device includes: an indoor heat exchanger, the heat exchange air duct is an indoor heat exchange air duct, the fresh air duct is located outside the indoor heat exchange air duct, the indoor heat exchanger is arranged in the indoor heat exchange air duct, the second refrigerant flow path is connected in series with the refrigerant pipe of the indoor heat exchanger, and the interior of the refrigerant pipe forms the first refrigerant flow path.

[0016] In the air conditioner provided by the embodiment of the present invention, the first refrigerant flow path and the second refrigerant flow path are connected in series, and the refrigerant heat exchanger can be directly connected to the refrigerant heat exchange device. In this way, the structure of the pipeline connecting the refrigerant heat exchange device and the refrigerant heat exchanger is simple and the required length is short, which can achieve the blowing effect of the fresh air air-conditioning indoor unit in the related technology; in addition, since the refrigerant heat exchanger must always be kept in a conducting state, valves do not need to be set at both ends of the refrigerant heat exchanger, so that the structure at both ends of the refrigerant heat exchanger is simpler.

[0017] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.

[0019] Figure 1 A schematic diagram of the main structure of an air conditioner provided in some embodiments;

[0020] Figure 2 for Figure 1 AA cross-sectional structure diagram in;

[0021] Figure 3 for Figure 2 A schematic diagram of a three-dimensional structure of an example after the refrigerant heat exchanger and the heat sink are assembled, wherein the refrigerant heat exchanger comprises two;

[0022] Figure 4 It is a schematic diagram of a three-dimensional structure of another example after the refrigerant heat exchanger and the heat sink are assembled, and the refrigerant heat exchanger includes two.

[0023] The corresponding relationship between the reference numerals and the component names is as follows:

[0024] 100 main body, 110 heat exchange air duct, 120 fresh air duct, 121 air inlet cavity, 122 air inlet of the fresh air duct, 200 refrigerant heat exchange device, 210 refrigerant pipe, 300 refrigerant heat exchange component, 310 U-shaped pipe section, 320 connecting pipe section, 330 extension pipe section, 400 heat dissipation component, 500 fresh air fan. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily without conflict.

[0026] An embodiment of the present invention provides an air conditioner, such as Figures 1 to 4As shown, it includes: a main body 100, the main body 100 is provided with a heat exchange air duct 110 and a fresh air duct 120; a refrigerant heat exchange device 200 having a first refrigerant flow path, and the refrigerant heat exchange device 200 is at least partially arranged in the heat exchange air duct 110; and a refrigerant heat exchange component 300 having a second refrigerant flow path, the refrigerant heat exchange component 300 is at least partially arranged in the fresh air duct 120, and the first refrigerant flow path and the second refrigerant flow path are connected in series.

[0027] In this air conditioner, the first refrigerant flow path and the second refrigerant flow path are connected in series, and the refrigerant heat exchanger 300 can be directly connected to the refrigerant heat exchange device 200. In this way, the structure of the pipeline connecting the refrigerant heat exchange device 200 and the refrigerant heat exchanger 300 is simple and the required length is short, which can achieve the blowing effect of the fresh air air conditioner indoor unit in the related technology; in addition, since the refrigerant heat exchanger 300 must always be kept in a conducting state, valves do not need to be set at both ends of the refrigerant heat exchanger 300, so the structure at both ends of the refrigerant heat exchanger 300 is simpler.

[0028] That is, when the fresh air function is used in winter (the air conditioner is in heating operation), the refrigerant releases heat in the process of passing through the first refrigerant flow path and the second refrigerant flow path, so that the temperature of the refrigerant heat exchange device 200 and the refrigerant heat exchange component 300 increases, and the outside air exchanges heat with the refrigerant heat exchange component 300 and the temperature increases in the process of being blown into the room through the fresh air duct 120. In this way, the outdoor air (i.e., fresh air) blows directly to the human body without causing discomfort to the human body; when the fresh air function is used in summer (the air conditioner is in cooling operation), the refrigerant passes through the first refrigerant flow path and the second refrigerant flow path, so that the temperature of the refrigerant heat exchange device 200 and the refrigerant heat exchange component 300 increases. Heat is absorbed during the process of the first refrigerant flow path and the second refrigerant flow path, so that the temperature of the refrigerant heat exchange device 200 and the refrigerant heat exchange component 300 is reduced. In the process of the outside air being blown into the room through the fresh air duct 120, it will exchange heat with the refrigerant heat exchange component 300 and the temperature will be reduced. In this way, the outdoor air (i.e., fresh air) is directly blown to the human body to enhance the human body's blowing feeling; therefore, when the air conditioner provided by this scheme uses the fresh air function, the air conditioner has a good blowing effect, which can achieve the blowing effect of the fresh air air conditioner indoor unit in the related technology.

[0029] Compared with technical solutions such as using thermistors to heat the fresh air and using heating tubes to heat the fresh air, the technical solution of the present application has higher safety and reliability, a simpler structure, lower costs, and occupies less space in the fresh air duct 120.

[0030] In some examples, such as Figures 2 to 4 As shown, the air conditioner further includes: a heat sink 400, which is located in the fresh air duct 120 and is arranged on the refrigerant heat exchanger 300, and the heat sink 400 is used to improve the heat exchange effect between the outdoor air and the refrigerant heat exchanger 300. The heat sink 400 can be made of copper or aluminum with good thermal conductivity.

[0031] In some examples, such as Figures 2 to 4 As shown, the refrigerant heat exchange component 300 includes: a heat exchange tube, a first refrigerant flow path connected in series with the heat exchange tube, and a second refrigerant flow path is formed inside the heat exchange tube. The heat exchange tube may be a copper tube; or the heat exchange tube may be an aluminum tube, etc.; all of the above can achieve the purpose of this application, and its purpose does not deviate from the design concept of the present invention, and will not be repeated here, and all should fall within the scope of protection of this application.

[0032] In some embodiments, Figure 3 and Figure 4 As shown, the heat exchange tube includes a U-shaped tube section 310 and two connecting tube sections 320. The U-shaped tube section 310 is located between the two connecting tube sections 320 and is connected in series with the first refrigerant flow path through the two connecting tube sections 320. The U-shaped tube section 310 includes two vertical tubes and one horizontal tube. The two vertical tubes are located on the same side of the horizontal tube and are connected through the horizontal tube. The heat sink 400 is horizontally placed on the two vertical tubes of the U-shaped tube section 310.

[0033] Among them, Figure 2 As shown, the plane where the axis of the U-shaped pipe section 310 is located intersects with the axis of the fresh air duct 120, so that when the outdoor air passes through the U-shaped pipe section 310 and the heat sink 400, the heat exchange effect between the outdoor air and the U-shaped pipe section 310 and the heat sink 400 is better. Figure 2 As shown, the axis of the fresh air duct 120 is set to be perpendicular to the plane where the axis of the U-shaped pipe section 310 is located, which can further improve the heat exchange effect between the outdoor air and the U-shaped pipe section 310 and the heat sink 400.

[0034] Furthermore, if Figure 3 and Figure 4 As shown, the heat exchange tube also includes two extended pipe segments 330, and the two extended pipe segments 330 are located in the fresh air duct 120. The two ends of the U-shaped pipe segment 310 are connected to the two connecting pipe segments 320 through the two extended pipe segments 330. By adaptively adjusting the lengths of the two extended pipe segments 330, the layout position and layout posture of the U-shaped pipe segment 310 in the fresh air duct 120 can be adjusted.

[0035] It can be, for example Figure 3 As shown, the heat sink 400 is configured as a heat conductive wire, which may include one heat conductive wire (not shown in this scheme), or may include multiple heat conductive wires (such as Figure 3 As shown), the plurality of heat conductive wires may be arranged in parallel with each other. In this solution, the wind resistance formed by the heat sink 400 in the fresh air duct 120 is small, but the heat exchange effect between the outdoor air and the heat sink 400 is slightly poor; or it may be, as Figure 4 As shown, the heat sink 400 is configured as a heat sink fin, which may include one heat sink fin (not shown in this scheme), or may include multiple heat sink fins (such as Figure 4As shown), multiple heat dissipation fins can be arranged in parallel with each other and are all installed on the two vertical pipes of the U-shaped pipe section 310. In this solution, the wind resistance formed by the heat dissipation element 400 in the fresh air duct 120 is slightly higher, but the heat exchange effect between the outdoor air and the heat dissipation element 400 is better.

[0036] The refrigerant heat exchange element 300 may include one (not shown in the diagram); or it may be, for example Figures 2 to 4 As shown, the refrigerant heat exchange element 300 includes a plurality (such as two, three or four), and the plurality of second refrigerant flow paths are connected in series with the first refrigerant flow path, and the plurality of second refrigerant flow paths can be connected in series with each other (such as Figure 2 As shown in the figure), the plurality of second refrigerant flow paths may be connected in parallel with each other (not shown in the figure), and the plurality of second refrigerant flow paths may be partially connected in parallel or partially connected in series (not shown in the figure), etc. Figure 3 and Figure 4 As shown, the heat sink 400 can be simultaneously placed horizontally on multiple U-shaped pipe segments 310 (i.e., multiple refrigerant heat exchangers 300 are integrated together through the heat sink 400), and the heat sink 400 can also be separately placed horizontally on multiple U-shaped pipe segments 310 (i.e., the heat sinks 400 on different refrigerant heat exchangers 300 are independent of each other and not connected to each other, which is not shown in this scheme diagram); the above can all achieve the purpose of the present application, and its purpose does not deviate from the design concept of the present invention, and will not be repeated here, and should all fall within the protection scope of the present application.

[0037] In some embodiments, Figure 1 and Figure 2 As shown, the refrigerant heat exchange device 200 includes: an indoor heat exchanger, a heat exchange air duct 110 is an indoor heat exchange air duct 110, a fresh air duct 120 is located outside the indoor heat exchange air duct 110, an air outlet of the fresh air duct 120 is connected to the indoor, and an air inlet 122 of the fresh air duct 120 is connected to the outdoor, the indoor heat exchanger is arranged in the indoor heat exchange air duct 110, the heat exchange pipe is located at the end of the indoor heat exchanger and is connected in series with the refrigerant pipe 210 of the indoor heat exchanger, and the interior of the refrigerant pipe 210 forms a first refrigerant flow path. In the cooling condition, the refrigerant absorbs heat in the refrigerant pipe 210 and the heat exchange pipe during the process of passing through the indoor heat exchanger; in the heating condition, the refrigerant releases heat in the refrigerant pipe 210 and the heat exchange pipe during the process of passing through the indoor heat exchanger.

[0038] Of course, it is also possible that the fresh air duct 120 is located inside the indoor heat exchange duct 110, the air outlet of the fresh air duct 120 is connected to the interior of the indoor heat exchange duct 110, and the air inlet 122 of the fresh air duct 120 is connected to the outdoors (not shown in this scheme diagram); of course, it is also possible that the fresh air duct 120 is located outside the indoor heat exchange duct 110, the air outlet of the fresh air duct 120 is connected to the interior of the indoor heat exchange duct 110, and the air inlet 122 of the fresh air duct 120 is connected to the outdoors (not shown in this scheme diagram), etc.; the above can all achieve the purpose of the present application, and its purpose does not deviate from the design concept of the present invention, and will not be repeated here, and should all fall within the protection scope of the present application.

[0039] In some examples, such as Figure 2 As shown, the air conditioner also includes: a fresh air fan 500, which is arranged in the fresh air duct 120, and an air inlet cavity 121 is formed between the air inlet of the fresh air fan 500 and the air inlet 122 of the fresh air duct 120, and the air inlet cavity 121 is adjacent to one end of the refrigerant heat exchange device 200, and the refrigerant heat exchange element 300 is at least partially located in the air inlet cavity 121. In this way, not only the heat exchange effect of the refrigerant heat exchange element 300 is good, but also the required length of the pipeline connecting the refrigerant heat exchange device 200 and the refrigerant heat exchange element 300 is smaller. The fresh air duct 120 includes the air inlet cavity 121. It can be that the fresh air fan 500 is a centrifugal fan, the air outlet of the centrifugal fan is connected to the air outlet of the fresh air duct 120, the air inlet of the centrifugal fan is located in the fresh air duct 120, and the area in the fresh air duct 120 between the air inlet of the centrifugal fan and the air inlet 122 of the fresh air duct 120 forms an air inlet cavity 121.

[0040] The air conditioner provided in the present application may be a split type air conditioner (such as Figure 1 As shown), it can also be an integrated air conditioner, etc., which can achieve the purpose of this application. Its purpose does not deviate from the design concept of the present invention and will not be repeated here. All should fall within the protection scope of this application.

[0041] To sum up, in the air conditioner provided by the embodiment of the present invention, the first refrigerant flow path and the second refrigerant flow path are connected in series, and the refrigerant heat exchanger can be directly connected to the refrigerant heat exchange device. In this way, the structure of the pipeline connecting the refrigerant heat exchange device and the refrigerant heat exchanger is simple and the required length is short, which can achieve the blowing effect of the fresh air air-conditioning indoor unit in the related technology; in addition, since the refrigerant heat exchanger must always be kept in a conducting state, valves do not need to be set at both ends of the refrigerant heat exchanger, so that the structure at both ends of the refrigerant heat exchanger is simpler.

[0042] In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "relative", "four corners", "periphery", "'mouth'-shaped structure" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred structure has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0043] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", and "assembly" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; the terms "installation", "connection", and "fixed connection" can be a direct connection, or an indirect connection through an intermediate medium, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Although the embodiments disclosed in the present invention are as above, the contents described are only embodiments adopted to facilitate understanding of the present invention and are not intended to limit the present invention. Any technician in the field to which the present invention belongs can make any modifications and changes in the form and details of implementation without departing from the spirit and scope disclosed in the present invention, but the patent protection scope of the present invention shall still be defined by the attached claims.

Claims

1. An air conditioner, characterized in that: include: The main body is provided with a heat exchange air duct and a fresh air duct; A refrigerant heat exchange device having a first refrigerant flow path, at least partially disposed in the heat exchange air duct; and A refrigerant heat exchange component having a second refrigerant flow path is at least partially disposed in the fresh air duct, and the first refrigerant flow path and the second refrigerant flow path are connected in series.

2. The air conditioner according to claim 1, characterized in that: Also includes: The heat dissipation component is located in the fresh air duct and is arranged on the refrigerant heat exchange component.

3. The air conditioner according to claim 2, characterized in that: The refrigerant heat exchange component comprises: The first refrigerant flow path is connected in series with the heat exchange tube, and the second refrigerant flow path is formed inside the heat exchange tube.

4. The air conditioner according to claim 3, characterized in that: The heat exchange tube includes a U-shaped tube section and two connecting tube sections. The U-shaped tube section is located between the two connecting tube sections and is connected in series with the first refrigerant flow path through the two connecting tube sections. The heat sink is horizontally placed on the two vertical tubes of the U-shaped tube section.

5. The air conditioner according to claim 4, characterized in that: The plane where the axis of the U-shaped pipe section lies intersects with the axis of the fresh air duct.

6. The air conditioner according to claim 4, characterized in that: The heat exchange tube also includes two extended pipe sections, the two extended pipe sections are located in the fresh air duct, and the two ends of the U-shaped pipe section are connected to the two connecting pipe sections through the two extended pipe sections.

7. The air conditioner according to claim 2, characterized in that: The heat sink includes at least one of a heat conductive wire and a heat conductive fin.

8. The air conditioner according to any one of claims 2 to 7, characterized in that: The refrigerant heat exchange components include a plurality of them, and the plurality of the second refrigerant flow paths are connected in series with the first refrigerant flow path, and the heat sink is simultaneously provided on the plurality of the refrigerant heat exchange components.

9. The air conditioner according to any one of claims 1 to 7, characterized in that: Also includes: A fresh air fan is arranged in the fresh air duct, and an air inlet cavity is formed between the air inlet of the fresh air fan and the air inlet of the fresh air duct. The air inlet cavity is adjacent to one end of the refrigerant heat exchange device, and the refrigerant heat exchange component is at least partially located in the air inlet cavity.

10. The air conditioner according to any one of claims 1 to 7, characterized in that: The refrigerant heat exchange device comprises: Indoor heat exchanger, the heat exchange air duct is an indoor heat exchange air duct, the fresh air duct is located outside the indoor heat exchange air duct, the indoor heat exchanger is arranged in the indoor heat exchange air duct, the second refrigerant flow path is connected in series with the refrigerant pipe of the indoor heat exchanger, and the interior of the refrigerant pipe forms the first refrigerant flow path.

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