External air conditioner and control method thereof

Abstract

The invention discloses an external air conditioner and a control method thereof, and belongs to the technical field of air conditioning. The external air conditioner comprises an outdoor case, a first heat exchange assembly, a first fan assembly, a second heat exchange assembly, a compressor assembly, a second fan assembly, a first air pipe assembly and a second air pipe assembly. The outdoor machine case is divided into a first machine room and a second machine room, the first heat exchange assembly, the first fan assembly and the compressor assembly are arranged in the first machine room, and the second heat exchange assembly and the second fan assembly are arranged in the second machine room; therefore, all the components of the air conditioner work outdoors, and noise pollution is greatly reduced; in addition, the first air pipe assembly is connected to the indoor high-position air opening, the second air pipe assembly is connected to the indoor low-position air opening, the indoor high-position air opening and the indoor low-position air opening can form an obvious fall and a large distance, and the air circulation performance is better.

Description

Technical Field

[0001] The invention belongs to the technical field of air conditioning, and in particular relates to an external mounted air conditioner and a control method thereof. Background Art

[0002] As user requirements continue to increase, today's air conditioners must not only have basic cooling and heating functions, but also provide many functions to improve comfort, such as protection against direct cold wind and low noise.

[0003] Currently, common structures to prevent direct blowing of cold wind include: increasing the size of the air guide plate, using structures or methods such as blowing cold air upwards; as for low noise, it is achieved by reducing the rotation speed or adding sound insulation materials.

[0004] However, these current structures have several disadvantages:

[0005] 1. The existing cold air direct blowing prevention structure has both air inlet and air outlet on the indoor unit. In fact, the distance between the air inlet and the air outlet is relatively close, which makes it impossible to meet people's comfort requirements. That is, the effect of "cold air from top to bottom, hot air from bottom to top" is not good, and air volume circulation is not achieved;

[0006] 2. Some existing low-noise designs are designed by reducing the rotation speed, and some require adding soundproofing materials. Although some noise can be reduced, the actual main noise source (vibration of the compressor) will still be transmitted to the room through the connecting pipes between the indoor and outdoor units, and the noise of the indoor unit fan will be superimposed;

[0007] 3. The existing indoor unit is complex to assemble and occupies a large indoor space. Summary of the invention

[0008] The object of the present invention is to provide an air conditioner whose main body is installed outdoors and a control method thereof, aiming to improve the comfort of using the air conditioner; the present invention is achieved through the following scheme.

[0009] A first aspect of the present invention provides an external air conditioner, comprising:

[0010] An outdoor machine box comprises a first machine compartment and a second machine compartment arranged adjacent to the first machine compartment;

[0011] A first heat exchange component is disposed in the first compartment;

[0012] A first fan assembly is arranged at a heat exchange port opened on the first machine compartment;

[0013] A second heat exchange component, which has a heat exchange mode opposite to that of the first heat exchange component and is disposed in the second compartment;

[0014] A compressor assembly is disposed in the first compartment and is connected in series with the first heat exchange assembly and the second heat exchange assembly in a refrigerant transmission manner;

[0015] A second fan assembly is disposed in the second machine compartment;

[0016] A first air duct assembly, one end of which is connected to a first air outlet provided on the second machine compartment, and the other end of which is used to be connected to an indoor high-position air outlet;

[0017] A second air duct assembly, one end of which is connected to a second air outlet provided on the second machine compartment, and the other end of which is used to be connected to an indoor low-position air outlet;

[0018] The connecting flow path between the first air outlet and the second air outlet in the second machine compartment passes through the second fan assembly and the second heat exchange assembly.

[0019] As a preferred technical solution, the outdoor chassis is an integrated chassis, and a first partition is transversely arranged in the outdoor chassis, and the first partition divides the outdoor chassis into the first compartment located at the bottom and the second compartment located at the top.

[0020] As a preferred technical solution, a second partition is longitudinally arranged in the second compartment, and the second partition divides the second compartment into a left chamber and a right chamber; the first air outlet is opened at the rear part of the left wall of the left chamber, and the second air outlet is opened at the rear part of the right wall of the right chamber; a connecting port connecting the left chamber and the right chamber is opened at the front part of the second partition.

[0021] As a preferred technical solution, both the second fan assembly and the second heat exchange assembly are in two groups, and one group of the second fan assembly and the second heat exchange assembly are respectively arranged in the left chamber and the right chamber.

[0022] As a preferred technical solution, the second fan assembly is arranged at the rear part of the left chamber and the second heat exchange assembly is arranged at the front part; the second heat exchange assembly is arranged at the rear part of the right chamber and the second fan assembly is arranged at the front part.

[0023] As a preferred technical solution, the other end of the first air duct assembly is provided with a first sealed docking seat, which is connected to and sealed with the corresponding opening of the indoor high-position air outlet on the building; the other end of the second air duct assembly is provided with a second sealed docking seat, which is connected to and sealed with the corresponding opening of the indoor low-position air outlet on the building.

[0024] As a preferred technical solution, a first ducted fan is arranged in the first sealing docking seat; and a second ducted fan is arranged in the second sealing docking seat.

[0025] As a preferred technical solution, the first partition has an upwardly turned edge, and a card slot is arranged on the upwardly turned edge; the inner wall of the outdoor cabinet is provided with a card block that cooperates with the card slot and limits the first partition from sliding down.

[0026] As a preferred technical solution, a drainage hole is opened on the first partition, a drainage pipe connected to the drainage hole is arranged under the first partition, the drainage pipe is located above the first heat exchange component, and a plurality of drainage nozzles are arranged on the drainage pipe.

[0027] As a preferred technical solution, a heat insulation layer is provided on the periphery of each of the air ducts of the first air duct assembly and the second air duct assembly.

[0028] A second aspect of the present invention provides a control method for the above-mentioned external air conditioner, comprising:

[0029] When the compressor assembly, the first heat exchange assembly and the second heat exchange assembly are working in a cooling mode, the air supply direction of the second fan assembly is controlled so that the first air duct assembly performs an air supply operation and the second air duct assembly performs an air return operation;

[0030] When the compressor assembly, the first heat exchange assembly and the second heat exchange assembly operate in a heating mode, the air supply direction of the second fan assembly is controlled so that the first air duct assembly performs an air supply operation and the second air duct assembly performs an air return operation.

[0031] The external mounted air conditioner and the control method thereof provided by the present invention have the following beneficial effects:

[0032] By dividing an outdoor machine case into a first machine compartment and a second machine compartment, all components of the outdoor machine in the prior art are arranged in the first machine compartment, and all components of the indoor machine in the prior art are arranged in the second machine compartment; in this way, all components of the air conditioner work outdoors, which greatly reduces noise pollution;

[0033] At the same time, the external air conditioner provided by the present invention is also connected to the indoor high-position air outlet through the first air duct assembly, and is connected to the indoor low-position air outlet through the second air duct assembly, and the indoor high-position air outlet and the indoor low-position air outlet can form a significant drop and a larger spacing, and the air volume circulation performance is better;

[0034] In addition, the external air conditioner provided by the present invention can perform indoor cooling and heating two-way circulation heat exchange, and well achieve the effect of "cold air from top to bottom, hot air from bottom to top";

[0035] Furthermore, the external air conditioner provided by the present invention divides and arranges the second compartment by the second partition plate, so that the second compartment forms a U-shaped air path. Compared with the ordinary straight air duct, the U-shaped air path has a longer heat exchange distance and is more conducive to improving the heat exchange effect.

[0036] Finally, the external air conditioner provided by the present invention can utilize the condensed water generated in the second compartment to exchange heat with the first heat exchange component in the first compartment by arranging a drainage mechanism on the first partition plate, thereby improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A three-dimensional diagram of an exterior-mounted air conditioner provided in accordance with a specific embodiment of the present invention.

[0038] Figure 2 A front view of an exterior-mounted air conditioner provided in accordance with a specific embodiment of the present invention.

[0039] Figure 3 The internal structure diagram of the outdoor case in the exterior air conditioner provided for the specific implementation mode of the present invention.

[0040] Figure 4 A schematic diagram of an external air conditioner provided in a specific embodiment of the present invention being installed on an outer wall of a room.

[0041] Figure 5 A structural perspective view of the ends of the first and second air duct assemblies in an exterior air conditioner provided in a specific embodiment of the present invention, where they are connected to the outer wall of a room.

[0042] Figure 6 A perspective view of the structure of the second compartment in an exterior-mounted air conditioner provided in accordance with a specific embodiment of the present invention.

[0043] Figure 7 A structural perspective view of two sets of second fan assemblies arranged in a second machine compartment of an exterior-mounted air conditioner provided in a specific embodiment of the present invention.

[0044] Figure 8 A top view of a first partition in an exterior-mounted air conditioner provided in accordance with a specific embodiment of the present invention.

[0045] Fig. 9 A bottom view of a first partition in an exterior-mounted air conditioner provided in accordance with a specific embodiment of the present invention.

[0046] Fig.10 A perspective view of the rear structure of two sets of second fan assemblies arranged in the second compartment of the exterior mounted air conditioner provided in a specific embodiment of the present invention.

[0047] Explanation of the reference numerals: 10-outdoor housing, 20-first heat exchange component, 30-first fan component, 40-second heat exchange component, 50-compressor component, 60-second fan component, 70-first air duct component, 80-second air duct component, 11-first machine compartment, 12-second machine compartment, 13-first partition, 14-second partition, 123-left chamber, 124 right chamber, 141-connecting port, 121-first air outlet, 122-second air outlet, room wall 210, 71-first sealing docking seat, 81-second sealing docking seat, 72-first ducted fan, 82-second ducted fan, 109-U-shaped air duct, 131-card slot, 90-drainage pipe, 91-drain nozzle. DETAILED DESCRIPTION

[0048] The technical solutions of the embodiments of the present invention are explained and described below in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0049] In the description of the present invention, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise", "front", "back", etc., indicating directions or positional relationships, are based on the directions or relative positional relationships shown in the accompanying drawings, and are intended to facilitate a clear description of the structure of a product or device, and are not used to limit the actual directions of the product or device during production, use, sales, etc.

[0050] In addition, the terms "first" and "second" are only used for the purpose of distinction in the description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise clearly defined.

[0051] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "set", "fix", "assemble" and the like 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 an indirect connection through an intermediate medium, or it can be the internal communication 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.

[0052] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0053] Combination Figures 1 to 3 As shown, this embodiment provides an outdoor air conditioner, including: an outdoor case 10, a first heat exchange component 20, a first fan component 30, a second heat exchange component 40, a compressor component 50, a second fan component 60, a first air duct component 70 and a second air duct component 80. The matching relationship and specific structure of each component are described in detail below.

[0054] The outdoor cabinet 10 has a first cabinet 11 and a second cabinet 12, and the second cabinet 12 is arranged adjacent to the first cabinet 11. As a specific distribution mode, the second cabinet 12 is located above the first cabinet 11. As a specific arrangement mode, the outdoor cabinet 10 is an integrated cabinet, and a first partition 13 is arranged horizontally in the outdoor cabinet 10, and the first partition 13 separates the outdoor cabinet 10 into the first cabinet 11 located below and the second cabinet 12 located above.

[0055] The first heat exchange assembly 20 and the compressor assembly 50 are arranged in the first machine compartment 11; the first fan assembly 30 is arranged at the heat exchange port opened on the front panel of the first machine compartment.

[0056] The second heat exchange component 40 and the second fan component 60 are arranged in the second machine compartment 12, and the heat exchange mode of the second heat exchange component 40 is opposite to that of the first heat exchange component 20; the compressor component 50 is connected in series with the first heat exchange component 20 and the second heat exchange component 40 in a refrigerant transmission manner. The reverse heat exchange mode mentioned here means that when the second heat exchange component 40 is used as a condensing component, the first heat exchange component 20 is used as an evaporating component; when the second heat exchange component 40 is used as an evaporating component, the first heat exchange component 20 is used as a condensing component; that is to say, the refrigerant system composed of the compressor component 50, the first heat exchange component 20 and the second heat exchange component 40 can perform both a forward refrigeration cycle and a reverse heating cycle.

[0057] Combination Figure 4As shown, one end of the first air duct assembly 70 is connected to the first air outlet 121 opened on the second machine compartment 12, and the other end is used to connect to an indoor high-position air outlet; one end of the second air duct assembly 80 is connected to the second air outlet 122 opened on the second machine compartment 12, and the other end is used to connect to an indoor low-position air outlet. Among them, the connecting flow path of the first air outlet 121 and the second air outlet 122 in the second machine compartment 12 passes through the second fan assembly 60 and the second heat exchange assembly 40. The indoor high-position air outlet mentioned above refers to the air outlet opened at a higher position on the wall 210 of the room (for example, on a wall close to the roof position), and the indoor low-position air outlet refers to the air outlet opened at a higher position on the wall 210 of the room (for example, on a wall close to the ground position). In addition, the indoor high-position air outlet and the indoor low-position air outlet are preferably opened on different walls.

[0058] The above-mentioned outdoor air conditioner is achieved by dividing the outdoor case 10 into a first compartment 11 and a second compartment 12, and all the components of the outdoor unit in the prior art are arranged in the first compartment 11, and all the components of the indoor unit in the prior art are arranged in the second compartment 12; in this way, all the components of the air conditioner work outdoors, which greatly reduces noise pollution; at the same time, it is also connected to the indoor high-position air outlet through the first air duct assembly 70, and connected to the indoor low-position air outlet through the second air duct assembly 80, and the indoor high-position air outlet and the indoor low-position air outlet can form a significant drop and a larger spacing, and the air volume circulation performance is better.

[0059] Combination Figures 1 to 5 As shown, the other end of the first air duct assembly 70 is provided with a first sealed docking seat 71, which is connected to and sealed with the corresponding opening of the indoor high-position air outlet on the building body (wall); the other end of the second air duct assembly 80 is provided with a second sealed docking seat 81, which is connected to and sealed with the corresponding opening of the indoor low-position air outlet on the building body (wall).

[0060] Continue to see Figure 5 As a preferred embodiment, a first ducted fan 72 is disposed in the first sealing docking seat 71 ; and a second ducted fan 82 is disposed in the second sealing docking seat 81 .

[0061] Combination Figure 3 and Figure 6As shown, a second partition 14 is longitudinally arranged in the second machine room 12, and the second partition 14 divides the second machine room 12 into a left chamber 13 and a right chamber 14; the first air outlet 121 is opened at the rear of the left wall of the left chamber 123, and the second air outlet 122 is opened at the rear of the right wall of the right chamber 124, and filters are arranged on the first air outlet 121 and the second air outlet 122; the front part of the second partition 14 is provided with a connecting port 141 connecting the left chamber 123 and the right chamber 124. In this way, the second machine room is divided and arranged by the second partition 14, so that the second machine room forms a U-shaped air path 109, which has a longer heat exchange distance than the ordinary straight air duct, and is more conducive to improving the heat exchange effect.

[0062] Combination Figure 3 , Figure 6 and Figure 7 As shown, the second fan assembly 60 and the second heat exchange assembly 40 are both in two groups, and one group of the second fan assembly 60 and the second heat exchange assembly 40 is respectively arranged in the left chamber 123 and the right chamber 124. In this way, in conjunction with the U-shaped air path 109 described above, the air flow rate can be increased, thereby improving the heat exchange efficiency.

[0063] Combination Figure 6 and Figure 7 As shown, more specifically, a group of second fan components 60 are arranged at the rear of the left chamber 123, and a group of second heat exchange components 40 are arranged at the front (combined with Figure 3 , Figure 7 A second heat exchange assembly 40 (combined with Figure 3 , Figure 7 The staggered arrangement can avoid the resonance of the two sets of second fan assemblies 60 and generate loud noise, and at the same time, it is conducive to the airflow in the U-shaped wind path 109 to fully exchange heat with the two sets of second heat exchange assemblies 40.

[0064] Combination Figure 8 and Fig. 9 As shown, the first partition 13 has an upturned edge, and a card slot 131 is provided on the upturned edge; the inner wall of the outdoor cabinet 10 is provided with (not shown in the figure), and the card block cooperates with the card slot 131 and limits the first partition 13 from sliding down, so that the first partition 13 can be stuck in the middle of the outdoor cabinet 10. Such a structure is more convenient for assembly, and the first partition 13 with an upturned edge can be used as a water receiving tray to prevent the condensed water generated by the second heat exchange assembly 40 in the second cabinet 12 from flowing downward from the periphery irregularly.

[0065] As a further embodiment, in combination Figure 8 , Fig. 9 and Fig.10As shown, a drainage hole (not shown) is provided on the first partition 13, and a drainage pipe 90 connected to the drainage hole is arranged below the first partition 13. The drainage pipe 90 is located above the first heat exchange component 20, and a plurality of drainage nozzles 91 are provided on the drainage pipe 90. In this embodiment, by providing a drainage mechanism on the first partition 13, the condensed water generated by the second machine compartment 12 can be used to exchange heat with the first heat exchange component 20 in the first machine compartment 11, thereby improving the heat exchange efficiency.

[0066] This embodiment also provides a control method for the above-mentioned external air conditioner, including:

[0067] When the compressor assembly 50, the first heat exchange assembly 20 and the second heat exchange assembly 40 are working in the cooling mode, the air supply direction of the second fan assembly 60 is controlled so that the first air duct assembly 70 performs the air supply operation and the second air duct assembly 80 performs the air return operation;

[0068] When the compressor assembly 50, the first heat exchange assembly 20 and the second heat exchange assembly 40 operate in the heating mode, the air supply direction of the second fan assembly is controlled so that the first air duct assembly 70 performs an air supply operation and the second air duct assembly 80 performs an air return operation.

[0069] In this way, the indoor cooling and heating two-way circulation heat exchange can be performed, and the effect of "cold air from top to bottom, hot air from bottom to top" can be well achieved.

[0070] The above disclosure is only the preferred embodiment of the present application, and certainly cannot be used to limit the scope of rights of the first application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. An external mounted air conditioner, characterized in that: include: An outdoor machine box comprises a first machine compartment and a second machine compartment arranged adjacent to the first machine compartment; A first heat exchange component is disposed in the first compartment; A first fan assembly is arranged at a heat exchange port opened on the first machine compartment; A second heat exchange component, which has a heat exchange mode opposite to that of the first heat exchange component and is disposed in the second compartment; A compressor assembly is disposed in the first compartment and is connected in series with the first heat exchange assembly and the second heat exchange assembly in a refrigerant transmission manner; A second fan assembly is disposed in the second machine compartment; A first air duct assembly, one end of which is connected to a first air outlet provided on the second machine compartment, and the other end of which is used to be connected to an indoor high-position air outlet; A second air duct assembly, one end of which is connected to a second air outlet provided on the second machine compartment, and the other end of which is used to be connected to an indoor low-position air outlet; The connecting flow path between the first air outlet and the second air outlet in the second machine compartment passes through the second fan assembly and the second heat exchange assembly.

2. The exterior air conditioner according to claim 1, characterized in that: The outdoor chassis is an integrated chassis, and a first partition is transversely arranged inside the outdoor chassis. The first partition divides the outdoor chassis into the first compartment located at the bottom and the second compartment located at the top.

3. The exterior air conditioner according to claim 2, characterized in that: A second partition is longitudinally arranged in the second machine compartment, and the second partition divides the second machine compartment into a left chamber and a right chamber; the first air outlet is opened at the rear part of the left wall of the left chamber, and the second air outlet is opened at the rear part of the right wall of the right chamber; a connecting port connecting the left chamber and the right chamber is opened at the front part of the second partition.

4. The exterior air conditioner according to claim 3, characterized in that: The second fan assembly and the second heat exchange assembly are both provided in two groups, and one group of the second fan assembly and the second heat exchange assembly is respectively provided in the left chamber and the right chamber.

5. The exterior air conditioner according to claim 4, characterized in that: The second fan assembly is arranged at the rear part of the left chamber, and the second heat exchange assembly is arranged at the front part; the second heat exchange assembly is arranged at the rear part of the right chamber, and the second fan assembly is arranged at the front part.

6. The exterior air conditioner according to claim 1, characterized in that: The other end of the first air duct assembly is provided with a first sealed docking seat, which is connected to and sealed with the corresponding opening of the indoor high-position air outlet on the building; the other end of the second air duct assembly is provided with a second sealed docking seat, which is connected to and sealed with the corresponding opening of the indoor low-position air outlet on the building.

7. The exterior air conditioner according to claim 6, characterized in that: A first ducted fan is arranged in the first sealing docking seat; and a second ducted fan is arranged in the second sealing docking seat.

8. The exterior air conditioner according to claim 2, characterized in that: The first partition has an upwardly turned edge, and a card slot is arranged on the upwardly turned edge; the inner wall of the outdoor cabinet is provided with a card block which cooperates with the card slot and limits the first partition from sliding downward.

9. The exterior air conditioner according to claim 8, characterized in that: A drainage hole is provided on the first partition plate, a drainage pipeline connected to the drainage hole is arranged below the first partition plate, the drainage pipeline is located above the first heat exchange component, and a plurality of drainage nozzles are arranged on the drainage pipeline.

10. A control method for an external air conditioner according to any one of claims 1 to 9, characterized in that: include: When the compressor assembly, the first heat exchange assembly and the second heat exchange assembly are working in a cooling mode, the air supply direction of the second fan assembly is controlled so that the first air duct assembly performs an air supply operation and the second air duct assembly performs an air return operation; When the compressor assembly, the first heat exchange assembly and the second heat exchange assembly operate in a heating mode, the air supply direction of the second fan assembly is controlled so that the first air duct assembly performs an air supply operation and the second air duct assembly performs an air return operation.

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