Air conditioner

Abstract

The utility model belongs to the technical field of air energy, and particularly provides an air conditioner. In order to solve the problem that an existing air conditioner can only blow cold air or hot air at the same time and cannot meet different requirements of users, the air conditioner comprises a machine shell, a first draught fan, a second draught fan, a heat exchanger, a front air door and a rear air door. An air inlet cavity, a first air outlet cavity and a second air outlet cavity are defined in the machine shell, and the air inlet cavity is provided with a front air inlet and a rear air inlet. The first fan is used for driving air to flow from the air inlet cavity to the first air outlet cavity. The second fan is used for driving air to flow from the air inlet cavity to the second air outlet cavity. The heat exchanger is arranged in the air inlet cavity and comprises a first heat exchange part located between the first draught fan and the rear air inlet and a second heat exchange part located between the second draught fan and the rear air inlet. The front air door is used for controlling connection and disconnection between the first air outlet cavity and / or the second air outlet cavity and the front air inlet. And the rear air door is used for shielding or opening the first heat exchange part and / or the second heat exchange part. The utility model solves the technical problems.

Description

Technical Field

[0001] The utility model belongs to the technical field of air energy, and specifically provides an air conditioner. Background Art

[0002] An air conditioner is a device that regulates indoor temperature. It mainly includes two types: integral air conditioner and split air conditioner. Among them, integral air conditioner usually integrates components such as compressor, evaporator and condenser in one box, which is common in window air conditioners. Split air conditioners mainly include indoor unit and outdoor unit. The indoor unit mainly includes wall-mounted, cabinet (floor-standing), ceiling-mounted, embedded, etc.

[0003] Some air conditioners, especially cabinet-type indoor units, are equipped with two air outlets, which can blow air in different directions through the two air outlets, thereby realizing multi-area air supply of the air conditioner. However, the existing air conditioners can only blow cold air or hot air through the two air outlets at the same time, which cannot meet the different needs of users and the user experience is poor. Utility Model Content

[0004] One purpose of the utility model is to solve the problem that the existing air conditioner can only blow cold air or hot air at the same time and cannot meet the different needs of users.

[0005] To achieve the above object, the utility model provides an air conditioner, comprising:

[0006] The housing defines an air inlet cavity, a first air outlet cavity, and a second air outlet cavity, wherein the air inlet cavity is provided with a front air inlet and a rear air inlet;

[0007] a first fan, used for driving air from the air inlet cavity to the first air outlet cavity;

[0008] a second fan, used for driving air from the air inlet cavity to the second air outlet cavity;

[0009] a heat exchanger disposed in the air inlet cavity and comprising a first heat exchange portion located between the first fan and the rear air inlet and a second heat exchange portion located between the second fan and the rear air inlet;

[0010] A front air door, used to selectively control the connection and disconnection between the first air outlet cavity and / or the second air outlet cavity and the front air outlet;

[0011] The rear air door is used to selectively block or open the first heat exchange part and / or the second heat exchange part.

[0012] Optionally, the heat exchanger divides the air inlet cavity into a front air inlet cavity connected to the front air port and a rear air inlet cavity connected to the rear air inlet, and the front air cavity is connected to the first air outlet cavity and the second air outlet cavity respectively.

[0013] Optionally, the front air gate includes a first air gate and a second air gate arranged in the front air cavity, the first air gate is used to selectively control the connection and disconnection between the first air outlet cavity and the front air port; the second air gate is used to selectively control the connection and disconnection between the second air outlet cavity and the front air port.

[0014] Optionally, the rear air door is arranged on a side of the heat exchanger close to the rear air inlet.

[0015] Optionally, an angle is formed between the first heat exchange portion and the second heat exchange portion, so that the heat exchanger has a V-shaped structure as a whole.

[0016] Optionally, the rotating shaft of the rear air door is arranged at the connection between the first heat exchange part and the second heat exchange part.

[0017] Optionally, the air conditioner includes a control valve for controlling the flow direction of the refrigerant, and the control valve can allow the refrigerant to flow through one of the first heat exchange part and the second heat exchange part, so that the air conditioner blows out hot air or cold air through the fan corresponding to the one of the first heat exchange part and the second heat exchange part, and blows out normal temperature air through the fan corresponding to the other of the first heat exchange part and the second heat exchange part.

[0018] Optionally, the front air outlet is located between the air outlet of the first air outlet cavity and the air outlet of the second air outlet cavity.

[0019] Optionally, the first fan is arranged at the junction of the first air outlet cavity and the air inlet cavity; and / or, the second fan is arranged at the junction of the second air outlet cavity and the air inlet cavity; and / or, the first fan and / or the second fan is a cross-flow fan.

[0020] Optionally, the air conditioner is a cabinet-type air conditioner indoor unit.

[0021] Based on the foregoing description, those skilled in the art will understand that, in the aforementioned technical solution of the present invention, the heat exchanger includes a first heat exchange portion located between the first fan and the rear air inlet and a second heat exchange portion located between the second fan and the rear air inlet, and a front air door and a rear air door are configured, so as to selectively control the connection and disconnection of the first air outlet chamber and / or the second air outlet chamber and the front air inlet through the front air door, and selectively block or open the first heat exchange portion and / or the second heat exchange portion through the rear air door, so that the air conditioner of the present invention can control whether the air flowing to the first air outlet chamber and the second air outlet chamber flows through the heat exchanger through the combination of the front air door and the rear air door.

[0022] When the air flowing to the first air outlet cavity flows through the heat exchanger, the air blown out from the first air outlet cavity is cold air cooled by the heat exchanger, or hot air heated by the heat exchanger. When the air flowing to the second air outlet cavity flows through the heat exchanger, the air blown out from the second air outlet cavity is cold air cooled by the heat exchanger, or hot air heated by the heat exchanger. Therefore, the air conditioner of the utility model can make the air blown out of one of the first air outlet cavity and the second air outlet cavity be cold air or hot air, and make the air blown out of the other of the first air outlet cavity and the second air outlet cavity be normal temperature air through the combination of the front air door and the rear air door, which can provide differentiated needs for users and improve the user experience.

[0023] Furthermore, by making the front air door include a first air door and a second air door arranged in the front air chamber, and selectively controlling the connection and disconnection between the first air outlet chamber and the front air port through the first air door, and selectively controlling the connection and disconnection between the second air outlet chamber and the front air port through the second air door, while controlling the air flowing to the first air outlet chamber and the second air outlet chamber to receive air from the front air port, the structure of the air conditioner is made more compact compared to using a single air door.

[0024] Furthermore, by providing an angle between the first heat exchange portion and the second heat exchange portion and making the heat exchanger as a whole a V-shaped structure, the rotating shaft of the rear air door can be set at the junction of the first heat exchange portion and the second heat exchange portion, thereby shortening the movement stroke of the rear air door and improving the response speed of the rear air door in shielding the first heat exchange portion and the second heat exchange portion.

[0025] Furthermore, the refrigerant is allowed to flow through one of the first heat exchange part and the second heat exchange part through a control valve, so that the air conditioner can blow out hot air or cold air through a fan corresponding to one of the first heat exchange part and the second heat exchange part, and blow out normal temperature air through a fan corresponding to the other of the first heat exchange part and the second heat exchange part.

[0026] Other beneficial effects of the present invention will be described in detail below in conjunction with the accompanying drawings so that those skilled in the art can more clearly understand the improved purposes, features and advantages of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solution of the utility model, some embodiments of the utility model will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that the same figure number indicates the same or similar parts or components in different drawings; the drawings of the utility model are not necessarily drawn to scale. In the drawings:

[0028] Figure 1 is a cross-sectional schematic diagram of an air conditioner in some embodiments of the utility model (normal working state);

[0029] Figure 2It is a cross-sectional schematic diagram of an air conditioner in some embodiments of the utility model (normal temperature wind working state on the left);

[0030] Figure 3 It is a cross-sectional schematic diagram of an air conditioner in some embodiments of the utility model (normal temperature wind working state on the right side);

[0031] Figure 4 It is a schematic diagram of a refrigeration system in some embodiments of the utility model. DETAILED DESCRIPTION

[0032] It should be understood by those skilled in the art that the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments of the present invention, and the embodiments are intended to explain the technical principles of the present invention, rather than to limit the protection scope of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should still fall within the protection scope of the present invention.

[0033] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] Furthermore, it should be noted that in the description of the present utility model, unless otherwise clearly specified and limited, the terms "install", "connect", and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances. For example, the terms "install", "connect", "connect" and "fix", unless otherwise specifically described, can specifically be any feasible connection form such as bolt connection, screw connection, welding, plug-in, riveting, melting, and clamping.

[0035] In addition, it should be noted that in the description of the present utility model, the terms "cooling capacity" and "heat quantity" are two descriptions of the same physical state. That is, the higher the "cooling capacity" of a certain target object (such as an evaporator, air, condenser, etc.), the lower the "heat quantity", and the lower the "cooling capacity", the higher the "heat quantity". When a certain target object absorbs "cooling capacity", it will release "heat quantity", and when it releases "cooling capacity", it will absorb "heat quantity". A certain target object stores "cooling capacity" or "heat quantity" to keep the current temperature of the target object. "Refrigeration" and "heat absorption" are two descriptions of the same physical phenomenon, that is, a certain target object (such as an evaporator) will absorb heat while refrigerating.

[0036] As Figures 1 to 3 shown, in some embodiments of the present utility model, the air conditioner 100 includes a housing 110, a first fan 121, a second fan 122, a heat exchanger 130, a front air damper 140, and a rear air damper 150.

[0037] Among them, the housing 110 defines an air inlet cavity 111, a first air outlet cavity 1121, and a second air outlet cavity 1122. The air inlet cavity 111 is provided with a front air inlet 1101 and a rear air inlet 1102. One ends of the first air outlet cavity 1121 and the second air outlet cavity 1122 away from the air inlet cavity 111 respectively form air outlets 1103.

[0038] Among them, the first fan 121 is used to drive air to flow from the air inlet cavity 111 to the first air outlet cavity 1121.

[0039] Among them, the second fan 122 is used to drive air to flow from the air inlet cavity 111 to the second air outlet cavity 1122.

[0040] Among them, the heat exchanger 130 is disposed in the air inlet cavity 111 and includes a first heat exchange portion 131 located between the first fan 121 and the rear air inlet 1102 and a second heat exchange portion 132 located between the second fan 122 and the rear air inlet 1102.

[0041] Among them, the front air damper 140 is used to selectively control the on-off of the first air outlet cavity 1121 and / or the second air outlet cavity 1122 and the front air inlet 1101.

[0042] Among them, the rear air damper 150 is used to selectively block or open the first heat exchange portion 131 and / or the second heat exchange portion 132.

[0043] Those skilled in the art will appreciate that by making the heat exchanger 130 include a first heat exchange portion 131 located between the first fan 121 and the rear air inlet 1102 and a second heat exchange portion 132 located between the second fan 122 and the rear air inlet 1102, and configuring a front air door 140 and a rear air door 150, so as to selectively control the connection and disconnection of the first air outlet chamber 1121 and / or the second air outlet chamber 1122 and the front air inlet 1101 through the front air door 140, and selectively block or open the first heat exchange portion 131 and / or the second heat exchange portion 132 through the rear air door 150, the air conditioner 100 of the utility model can control whether the air flowing to the first air outlet chamber 1121 and the second air outlet chamber 1122 flows through the heat exchanger 130 through the combination of the front air door 140 and the rear air door 150.

[0044] When the air flowing to the first air outlet cavity 1121 flows through the heat exchanger 130, the air blown out from the first air outlet cavity 1121 is cold air cooled by the heat exchanger 130, or hot air heated by the heat exchanger 130. When the air flowing to the second air outlet cavity 1122 flows through the heat exchanger 130, the air blown out from the second air outlet cavity 1122 is cold air cooled by the heat exchanger 130, or hot air heated by the heat exchanger 130. Therefore, the air conditioner 100 of the utility model can make the air blown out of one of the first air outlet cavity 1121 and the second air outlet cavity 1122 be cold air or hot air, and make the air blown out of the other of the first air outlet cavity 1121 and the second air outlet cavity 1122 be normal temperature air through the combination of the front air door 140 and the rear air door 150, which can provide differentiated needs for users and improve the user experience.

[0045] It should be noted that Figures 1 to 3 , which may be a transverse cross-sectional view of a cabinet-type air conditioner indoor unit, or a longitudinal cross-sectional view of a ceiling-type indoor unit.

[0046] when Figures 1 to 3 When the horizontal cross-sectional view of the cabinet air conditioner indoor unit is shown in FIG, the front air inlet 1101 is the air inlet located at the front side of the cabinet air conditioner indoor unit, and the rear air inlet 1102 is the air inlet located at the rear side of the cabinet air conditioner indoor unit.

[0047] That is, when Figures 1 to 3 When the horizontal cross-sectional view of the cabinet-type air conditioner indoor unit is shown in FIG, the front, back, left, right, top, and bottom directions of the air conditioner 100 are the directions of the cabinet-type air conditioner indoor unit itself.

[0048] when Figures 1 to 3 When the horizontal cross-sectional view of the ceiling type air conditioner indoor unit is shown in FIG, the front air inlet 1101 is the air inlet located at the bottom side of the cabinet type air conditioner indoor unit, and the rear air inlet 1102 is the air inlet located at the top side of the cabinet type air conditioner indoor unit.

[0049] That is, when Figures 1 to 3 When the horizontal cross-sectional view of the cabinet type air conditioner indoor unit is shown in FIG, the front of the air conditioner 100 represents the bottom side of the cabinet type air conditioner indoor unit, and the rear of the air conditioner 100 represents the top side of the cabinet type air conditioner indoor unit.

[0050] In addition, in other embodiments of the present invention, those skilled in the art may also configure the air conditioner 100 of the present invention as an integrated air conditioner as needed.

[0051] Continue reading Figures 1 to 3 In some embodiments of the present invention, the heat exchanger 130 divides the air inlet chamber 111 into a front air inlet chamber 1111 connected to the front air port 1101 and a rear air inlet chamber 1112 connected to the rear air inlet 1102, and the front air inlet chamber 1111 is connected to the first air outlet chamber 1121 and the second air outlet chamber 1122 respectively.

[0052] It will be understood by those skilled in the art that the air inlet chamber 111 is divided into a front air inlet chamber 1111 and a rear air inlet chamber 1112 by the heat exchanger 130, which leaves sufficient installation space for the arrangement of the front air door 140 and the rear air door 150 and facilitates the installation of the front air door 140 and the rear air door 150.

[0053] Of course, in other embodiments of the present invention, those skilled in the art may also dispose the heat exchanger 130 close to the front air inlet 1101 or the rear air inlet 1102 as required.

[0054] Continue reading Figures 1 to 3 In some embodiments of the present invention, the front air door 140 includes a first air door 141 and a second air door 142 arranged in the front air cavity 1111 .

[0055] The first air door 141 is used to selectively control the connection and disconnection between the first air outlet cavity 1121 and the front air inlet 1101 .

[0056] The second air door 142 is used to selectively control the connection and disconnection between the second air outlet cavity 1122 and the front air inlet 1101 .

[0057] Those skilled in the art will appreciate that by making the front air door 140 include a first air door 141 and a second air door 142 arranged in the front air chamber 1111, and selectively controlling the connection and disconnection between the first air outlet chamber 1121 and the front air port 1101 by the first air door 141, and selectively controlling the connection and disconnection between the second air outlet chamber 1122 and the front air port 1101 by the second air door 142, while controlling the air flowing to the first air outlet chamber 1121 and the second air outlet chamber 1122 to receive air from the front air port 1101, the structure of the air conditioner 100 is made more compact relative to using a single air door.

[0058] Further, the first damper 141 may be a pivot damper, so that the first damper 141 is rotatably mounted on the housing 110 via a rotating shaft.

[0059] The first damper 141 may also be configured with an independent driving device to drive the first damper 141 to rotate. The driving device may include a motor mounted on the housing 110 and a gear set drivingly connected to the motor, so as to be drivingly connected to the first damper 141 through the gear set, so that the motor can drive the first damper 141 to rotate.

[0060] The first damper 141 may also be provided with a position sensor to detect whether the first damper 141 is rotated to a certain position. Figure 1 or Figure 2 The position sensor can be any feasible sensor such as a proximity switch, an angle sensor, a micro switch, etc.

[0061] Accordingly, the second damper 142 may be a pivotable damper, so that the second damper 142 is rotatably mounted on the housing 110 via a rotating shaft.

[0062] The second damper 142 may also be configured with an independent driving device to drive the second damper 142 to rotate. The driving device may include a motor mounted on the housing 110 and a gear set drivingly connected to the motor, so as to be drivingly connected to the second damper 142 through the gear set, so that the motor can drive the second damper 142 to rotate.

[0063] The second damper 142 may also be provided with a position sensor to detect whether the second damper 142 is rotated to a certain position. Figure 1 or Figure 3 The position sensor can be any feasible sensor such as a proximity switch, an angle sensor, a micro switch, etc.

[0064] like Figures 1 to 3 As shown, in some embodiments of the present invention, the rear air door 150 is arranged on a side of the heat exchanger 130 close to the rear air inlet 1102 so that the rear air door 150 can fit the windward surface of the first heat exchange part 131 or the second heat exchange part 132 of the heat exchanger 130.

[0065] Those skilled in the art will appreciate that the rear air door 150 is in contact with the windward surface of the first heat exchange part 131 or the second heat exchange part 132, which has a better wind-blocking effect than the rear air door 150 is in contact with the leeward surface of the first heat exchange part 131 or the second heat exchange part 132, and can effectively prevent air from flowing through the gaps between the fins of the first heat exchange part 131 or the second heat exchange part 132.

[0066] like Figures 1 to 3As shown, in some embodiments of the present invention, there is an angle between the first heat exchange part 131 and the second heat exchange part 132 so that the heat exchanger 130 is a V-shaped structure as a whole, and the connection between the first heat exchange part 131 and the second heat exchange part 132 is located on the side of the heat exchanger 130 away from the rear air inlet 1102.

[0067] Those skilled in the art can understand that the above arrangement of the heat exchanger 130 can make the air flowing from the rear air inlet 1102 to the first air outlet cavity 1121 as perpendicular to the first heat exchange part 131 as much as possible, thereby reducing the resistance of the first heat exchange part 131 to this part of the air. Correspondingly, the above arrangement of the heat exchanger 130 can also make the air flowing from the rear air inlet 1102 to the second air outlet cavity 1122 as perpendicular to the second heat exchange part 132 as much as possible, thereby reducing the resistance of the second heat exchange part 132 to this part of the air.

[0068] like Figures 1 to 3 As shown, in some embodiments of the present invention, the rotating shaft of the rear air door 150 is disposed at the connection between the first heat exchange portion 131 and the second heat exchange portion 132 .

[0069] Further, the rear damper 150 may be a pivot damper, so that the rear damper 150 is rotatably mounted on the housing 110 via a rotating shaft.

[0070] The rear air door 150 may also be configured with an independent driving device to drive the rear air door 150 to rotate. The driving device may include a motor mounted on the housing 110 and a gear set drivingly connected to the motor, so as to be drivingly connected to the rear air door 150 through the gear set, so that the motor can drive the rear air door 150 to rotate.

[0071] The rear air door 150 may also be provided with a position sensor to detect whether the rear air door 150 is rotated to the desired position. Figures 1 to 3 The position sensor can be any feasible sensor such as a proximity switch, an angle sensor, a micro switch, etc.

[0072] like Figures 1 to 3 As shown, in some embodiments of the present invention, the front air inlet 1101 is located between the air outlet 1103 of the first air outlet cavity 1121 and the air outlet 1103 of the second air outlet cavity 1122, so that the air conditioner 100 can blow air toward its left front side and right front side.

[0073] Continue reading Figures 1 to 3 In some embodiments of the present invention, the first fan 121 is arranged at the connection between the first air outlet cavity 1121 and the air inlet cavity 111, and the second fan 122 is arranged at the connection between the second air outlet cavity 1122 and the air inlet cavity 111. The first fan 121 and the second fan 122 are cross-flow fans.

[0074] In addition, those skilled in the art may also set at least one of the first fan 121 and the second fan 122 to any other feasible fan, such as an axial flow fan, a centrifugal fan, a diagonal flow fan, etc., as needed.

[0075] Furthermore, those skilled in the art may also dispose the first fan 121 and / or the second fan 122 at any other feasible position as required. For example, the first fan 121 may be disposed in the middle of the first air outlet cavity 1121 or near the air outlet 1103, and the second fan 122 may be disposed in the middle of the second air outlet cavity 1122 or near the air outlet 1103.

[0076] like Figure 4 As shown, in some embodiments of the present invention, the air conditioner 100 includes a control valve 160 for controlling the flow direction of the refrigerant. The control valve 160 can allow the refrigerant to flow through one of the first heat exchange part 131 and the second heat exchange part 132, so that the air conditioner 100 blows out hot air or cold air through the fan corresponding to the one item, and blows out normal temperature air through the fan corresponding to the other item of the first heat exchange part 131 and the second heat exchange part 132.

[0077] In the present invention, the first heat exchange part 131 and the second heat exchange part 132 can be two parts of the same heat exchanger or two independent heat exchangers. When the first heat exchange part 131 and the second heat exchange part 132 are two parts of the same heat exchanger, the refrigerant pipelines of the first heat exchange part 131 and the second heat exchange part 132 are independent.

[0078] Continue reading Figure 4 In some embodiments of the present invention, the control valve 160 may include a first electronic expansion valve 161, a second electronic expansion valve 162, a third electronic expansion valve 163 and a fourth electronic expansion valve 164. The first electronic expansion valve 161 and the third electronic expansion valve 163 are respectively arranged at the inlet and outlet of the refrigerant of the first heat exchange part 131, and the second electronic expansion valve 162 and the fourth electronic expansion valve 164 are respectively arranged at the inlet and outlet of the refrigerant of the second heat exchange part 132.

[0079] When the first heat exchange unit 131 is cooling, the first electronic expansion valve 161 is fully opened, and the third electronic expansion valve 163 is half opened.

[0080] When the first heat exchange unit 131 is heating, the first electronic expansion valve 161 is half-opened, and the third electronic expansion valve 163 is fully opened.

[0081] When the first heat exchange unit 131 is neither cooling nor heating, at least one of the first electronic expansion valve 161 and the third electronic expansion valve 163 is completely closed, or both the first electronic expansion valve 161 and the third electronic expansion valve 163 are completely opened.

[0082] When the second heat exchange unit 132 is cooling, the second electronic expansion valve 162 is fully opened, and the fourth electronic expansion valve 164 is half opened.

[0083] When the second heat exchange unit 132 is heating, the second electronic expansion valve 162 is half-opened, and the fourth electronic expansion valve 164 is fully opened.

[0084] When the second heat exchange unit 132 is neither cooling nor heating, at least one of the second electronic expansion valve 162 and the fourth electronic expansion valve 164 is completely closed, or both the second electronic expansion valve 162 and the fourth electronic expansion valve 164 are completely opened.

[0085] like Figure 4 As shown, in some embodiments of the present invention, the air conditioner 100 may further include a refrigeration system 200 or a part of the refrigeration system 200. The refrigeration system 200 includes a compressor 210, a four-way reversing valve 220, a heat exchanger 230, the above-mentioned heat exchanger 130, and the above-mentioned first electronic expansion valve 161, second electronic expansion valve 162, third electronic expansion valve 163 and fourth electronic expansion valve 164. The connection relationship of the refrigeration system 200 is as follows: Figure 4 shown.

[0086] When the heat exchanger 130 of the utility model is an indoor unit of a split air conditioner, the air conditioner 100 includes a part of a refrigeration system 200, which at least includes the above-mentioned heat exchanger 130, and may further include the above-mentioned first electronic expansion valve 161, second electronic expansion valve 162, third electronic expansion valve 163 and fourth electronic expansion valve 164, and may further include the above-mentioned four-way reversing valve 220. The compressor 210, heat exchanger 230 and other components of the refrigeration system 200 are all arranged in the outdoor unit of the air conditioner.

[0087] When the heat exchanger 130 of the present invention is an integrated air conditioner (eg, a window air conditioner), the air conditioner 100 includes the entire refrigeration system 200 .

[0088] In addition, in other embodiments of the utility model, those skilled in the art may also set the control valve 160 to any other feasible form as needed. For example, the first electronic expansion valve 161 and the second electronic expansion valve 162 are replaced by a three-way reversing valve, and the electronic expansion valve is connected in series between the three-way reversing valve and the four-way reversing valve 220. And / or, the third electronic expansion valve 163 and the fourth electronic expansion valve 164 are replaced by a three-way reversing valve, and the electronic expansion valve is connected in series between the three-way reversing valve and the heat exchanger 230.

[0089] Refer to the following Figures 1 to 4The working mode of the air conditioner 100 in some embodiments of the present invention is briefly described by taking the cooling mode as an example.

[0090] like Figure 1 As shown, when both air outlets 1103 of the air conditioner 100 need to blow cold air, the first electronic expansion valve 161 is fully opened, the third electronic expansion valve 163 is half opened, and the first heat exchange unit 131 cools the air passing through it. The second electronic expansion valve 162 is fully opened, the fourth electronic expansion valve 164 is half opened, and the second heat exchange unit 132 cools the air passing through it. The first damper 141, the second damper 142, and the rear damper 150 are changed to Figure 1 At this time, the first fan 121 drives the air to flow through the rear air inlet 1102, the rear air inlet cavity 1112, the first heat exchange portion 131, the first air outlet cavity 1121 and its corresponding air outlet 1103 in sequence, and the second fan 122 drives the air to flow through the rear air inlet 1102, the rear air inlet cavity 1112, the second heat exchange portion 132, the second air outlet cavity 1122 and its corresponding air outlet 1103 in sequence.

[0091] like Figure 2 As shown, when only the left air outlet 1103 of the air conditioner 100 needs to blow normal temperature, the first electronic expansion valve 161 and the third electronic expansion valve 163 are completely closed, and no refrigerant flows through the first heat exchange unit 131. The second electronic expansion valve 162 is fully opened, and the fourth electronic expansion valve 164 is half opened, and the second heat exchange unit 132 cools the air flowing through it. The first damper 141, the second damper 142, and the rear damper 150 are changed to Figure 2 At this time, the first fan 121 drives the air to flow through the front air inlet 1101, the front air cavity 1111, the first air outlet cavity 1121 and its corresponding air outlet 1103 in sequence, and the second fan 122 drives the air to flow through the rear air inlet 1102, the rear air inlet cavity 1112, the second heat exchange portion 132, the second air outlet cavity 1122 and its corresponding air outlet 1103 in sequence.

[0092] like Figure 3 As shown, when only the right air outlet 1103 of the air conditioner 100 needs to blow normal temperature, the first electronic expansion valve 161 is fully opened, the third electronic expansion valve 163 is half opened, and the first heat exchange unit 131 cools the air passing through it. The second electronic expansion valve 162 and the fourth electronic expansion valve 164 are all closed, and no refrigerant flows through the second heat exchange unit 132. The first air door 141, the second air door 142, and the rear air door 150 are changed to Figure 3At this time, the first fan 121 drives the air to flow through the rear air inlet 1102, the rear air inlet cavity 1112, the first heat exchange portion 131, the first air outlet cavity 1121 and its corresponding air outlet 1103 in sequence, and the second fan 122 drives the air to flow through the front air inlet 1101, the front air cavity 1111, the second air outlet cavity 1122 and its corresponding air outlet 1103 in sequence.

[0093] In summary, the air conditioner 100 of the present invention can, through the combination of the front air door 140 and the rear air door 150, make the air blown out of one of the first air outlet chamber 1121 and the second air outlet chamber 1122 be cold air or hot air, and make the air blown out of the other of the first air outlet chamber 1121 and the second air outlet chamber 1122 be normal temperature air, which can provide users with differentiated needs and enhance the user experience.

[0094] So far, the technical solution of the utility model has been described in combination with the above multiple embodiments, but it is easy for those skilled in the art to understand that the protection scope of the utility model is not limited to these specific embodiments. Without departing from the technical principle of the utility model, those skilled in the art can split and combine the technical solutions in the above embodiments, and can also make equivalent changes or replacements to the relevant technical features. Any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principle of the utility model will fall within the protection scope of the utility model.

[0095] Finally, it should be noted that the term "communication" means fluid communication, so as to allow fluid (such as air, liquid) to flow between two connected objects. And the "communication" can be to allow the fluid to flow between the two connected objects without leakage, or to allow the fluid to flow between the two connected objects with a little leakage.

Claims

1. An air conditioner, characterized in that: include: The housing defines an air inlet cavity, a first air outlet cavity, and a second air outlet cavity, wherein the air inlet cavity is provided with a front air inlet and a rear air inlet; a first fan, used for driving air from the air inlet cavity to the first air outlet cavity; a second fan, used for driving air from the air inlet cavity to the second air outlet cavity; a heat exchanger disposed in the air inlet cavity and comprising a first heat exchange portion located between the first fan and the rear air inlet and a second heat exchange portion located between the second fan and the rear air inlet; A front air door, used to selectively control the connection and disconnection between the first air outlet cavity and / or the second air outlet cavity and the front air outlet; The rear air door is used to selectively block or open the first heat exchange part and / or the second heat exchange part.

2. The air conditioner according to claim 1, characterized in that: The heat exchanger divides the air inlet cavity into a front air inlet cavity connected to the front air inlet and a rear air inlet cavity connected to the rear air inlet, and the front air inlet cavity is connected to the first air outlet cavity and the second air outlet cavity respectively.

3. The air conditioner according to claim 2, characterized in that: The front air door comprises a first air door and a second air door arranged in the front air cavity, The first air door is used to selectively control the connection and disconnection between the first air outlet cavity and the front air outlet; The second air door is used to selectively control the connection and disconnection between the second air outlet cavity and the front air outlet.

4. The air conditioner according to claim 2, characterized in that: The rear air door is arranged on a side of the heat exchanger close to the rear air inlet.

5. The air conditioner according to claim 4, characterized in that: An included angle is formed between the first heat exchange portion and the second heat exchange portion, so that the heat exchanger has a V-shaped structure as a whole.

6. The air conditioner according to claim 5, characterized in that: The rotating shaft of the rear air door is arranged at the connection between the first heat exchange part and the second heat exchange part.

7. The air conditioner according to any one of claims 1 to 6, characterized in that: The air conditioner includes a control valve for controlling the flow direction of the refrigerant, and the control valve can allow the refrigerant to flow through one of the first heat exchange part and the second heat exchange part, so that the air conditioner blows out hot air or cold air through the fan corresponding to the one of the first heat exchange part and the second heat exchange part, and blows out normal temperature air through the fan corresponding to the other of the first heat exchange part and the second heat exchange part.

8. The air conditioner according to any one of claims 1 to 6, characterized in that: The front air outlet is located between the air outlet of the first air outlet cavity and the air outlet of the second air outlet cavity.

9. The air conditioner according to any one of claims 1 to 6, characterized in that: The first fan is disposed at the junction of the first air outlet cavity and the air inlet cavity; and / or, The second fan is arranged at the junction of the second air outlet cavity and the air inlet cavity; and / or, The first fan and / or the second fan is a cross-flow fan.

10. The air conditioner according to any one of claims 1 to 6, characterized in that: The air conditioner is a cabinet-type air conditioner indoor unit.

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