Window type air conditioner

Abstract

The utility model discloses a window type air conditioner which comprises an indoor unit part and an outdoor unit part, the indoor unit part comprises an indoor heat exchanger, the indoor heat exchanger comprises a first heat exchanger and a second heat exchanger, the first heat exchanger is obliquely arranged downwards in the direction from front to back, and the second heat exchanger is obliquely arranged downwards in the direction from front to back. The front end of the second heat exchanger is connected with the rear end of the first heat exchanger, the second heat exchanger is obliquely arranged upwards in the direction from front to back, a mounting plane is formed at the bottom of the outdoor unit part, the included angle alpha between the leeward side of the first heat exchanger and the mounting plane is larger than or equal to 43 degrees and smaller than or equal to 45 degrees; the included angle beta between the leeward side of the second heat exchanger and the installation plane meets the relational expression that beta is larger than or equal to 45 degrees and smaller than or equal to 48 degrees. Therefore, by arranging the window type air conditioner, the space occupied by the indoor heat exchanger can be effectively reduced while the heat exchange area is guaranteed, and the effect of reducing the size of the indoor unit part in the height direction is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, and in particular to a window air conditioner. Background Art

[0002] The window air conditioner has a compact structure, a small volume, a low cost, a cheap price, and is more convenient to install than a split air conditioner.

[0003] In the prior art, the indoor heat exchanger of a common window air conditioner is vertically arranged. In order to meet the heat exchange capacity, the height of the heat exchanger is relatively high, which leads to a relatively high height of the indoor part. After installation, it occupies a large volume indoors and affects (invades) the user's indoor space. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a window air conditioner, which can ensure the heat exchange area while effectively reducing the space occupied by the indoor heat exchanger, so as to achieve the effect of reducing the size of the indoor unit in the height direction.

[0005] The window air conditioner according to the first aspect of the utility model includes: an indoor unit part and an outdoor unit part. The indoor unit part includes an indoor heat exchanger. The height of the indoor unit part is less than the height of the outdoor unit part. The indoor heat exchanger includes: a first heat exchanger, which is inclined downward in the front-to-back direction, and a second heat exchanger, the front end of which is connected to the rear end of the first heat exchanger, and the second heat exchanger is inclined upward in the front-to-back direction. Wherein, an installation plane is formed at the bottom of the outdoor unit part, and the included angle between the windward side of the first heat exchanger and the installation plane is α, and α satisfies the relational expression: 43° ≤ α ≤ 45°; the included angle between the windward side of the second heat exchanger and the installation plane is β, and β satisfies the relational expression: 45° ≤ β ≤ 48°.

[0006] Thus, by providing this window air conditioner, it is possible to ensure the heat exchange area while effectively reducing the space occupied by the indoor heat exchanger, so as to achieve the effect of reducing the size of the indoor unit part in the height direction.

[0007] In some examples of the utility model, the distance from the front end to the rear end of the first heat exchanger is greater than the distance from the front end to the rear end of the second heat exchanger, and the front end of the first heat exchanger is higher than the rear end of the second heat exchanger.

[0008] In some examples of the present utility model, the indoor unit further includes: an indoor housing on which an indoor air inlet and an indoor air outlet are formed; an air duct member located between the first heat exchanger, the second heat exchanger, and the indoor air outlet; a motor; and a fan disposed in the air duct member and drivingly connected to the motor. Wherein, the rear end of the first heat exchanger is located directly below the fan.

[0009] In some examples of the present utility model, the air duct member is a volute which has a volute tongue and is located at the rear lower part of the indoor air outlet. The window air conditioner further includes a wind deflector disposed at the indoor air outlet and selectively rotatable relative to the indoor housing for adjusting the air outlet angle. Wherein, there is an included angle γ between the volute tongue and the installation plane, and γ satisfies the relation: 0°≤γ≤5°; the included angle between the wind deflector and the volute tongue is δ, and δ satisfies the relation: 30°≤δ≤40°.

[0010] In some examples of the present utility model, the air duct member has an air duct inlet and an air duct outlet. The air duct inlet faces the first heat exchanger and / or the second heat exchanger, and the air duct outlet faces the indoor air outlet. The lowest point of the air duct inlet is lower than the highest point of the rear end of the second heat exchanger.

[0011] In some examples of the present utility model, the air duct member includes: an air duct main body in which the fan is disposed and which forms the air duct outlet; an arc transition section having one end connected to one end of the air duct main body close to the second heat exchanger; and an arc section connected to the other end of the arc transition section. The arc section and the air duct main body form the air duct inlet, and the arc section protrudes away from the fan and is located in front of the second heat exchanger.

[0012] In some examples of the present utility model, the indoor unit further includes a baffle connected to the rear of the air duct member and located above the rear end of the second heat exchanger. The baffle is used to block the upward flow of air and prevent rainwater above from falling onto the second heat exchanger.

[0013] In some examples of the present utility model, the baffle includes: a first section having one end connected to the rear of the air duct member and extending obliquely downward in the front-to-back direction; and a second section connected to the other end of the first section and also extending obliquely downward in the front-to-back direction. The lowest point of the second section is lower than the highest point of the rear end of the second heat exchanger.

[0014] In some examples of the present utility model, the outdoor unit portion includes an outdoor housing, and the outdoor housing is connected to the rear of the indoor housing; the indoor housing includes: a first top plate, which is horizontally arranged; a second top plate, the front end of the second top plate is connected to the first top plate, and the second top plate extends obliquely downward in the front-to-back direction; a third top plate, which is horizontally arranged, the front end of the third top plate is connected to the rear end of the second top plate, and the rear end of the third top plate is connected to the outdoor housing; an installation groove is formed between the second top plate, the third top plate and the outdoor housing, and the installation groove is used for installing the lower edge of a window.

[0015] The window air conditioner according to the second aspect of the present utility model includes: an indoor unit portion and an outdoor unit portion, the indoor unit portion includes an indoor heat exchanger; the height of the indoor unit portion is less than the height of the outdoor unit portion; the indoor heat exchanger includes: a first heat exchanger, which is obliquely arranged downward in the front-to-back direction, a second heat exchanger, the front end of the second heat exchanger is connected to the rear end of the first heat exchanger, and the second heat exchanger is obliquely arranged upward in the front-to-back direction, wherein, an installation plane is formed at the bottom of the outdoor housing, and the included angle between the leeward side of the first heat exchanger and the installation plane is α, and α satisfies the relational expression: 43° ≤ α ≤ 50°; or the included angle between the leeward side of the second heat exchanger and the installation plane is β, and β satisfies the relational expression: 45° ≤ β ≤ 50°.

[0016] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 is a schematic structural diagram of a window air conditioner (after installation) according to an embodiment of the present utility model;

[0019] Figure 2 is another schematic structural diagram of a window air conditioner (after installation) according to an embodiment of the present utility model;

[0020] Figure 3 is a side view of a window air conditioner (after installation) according to an embodiment of the present utility model;

[0021] Figure 4 is a schematic structural diagram of a window air conditioner according to an embodiment of the present utility model;

[0022] Figure 5 is a partial structural schematic diagram of a window air conditioner according to an embodiment of the present utility model;

[0023] Figure 6 is a side view of a window air conditioner according to an embodiment of the present utility model;

[0024] Figure 7 is Figure 6 a cross-sectional view taken along the A-A direction in

[0025] Figure 8 is Figure 7 an enlarged view of area B in

[0026] Figure 9 is a partial structural schematic diagram at the indoor unit part according to an embodiment of the present utility model;

[0027] Figure 10 is Figure 9 an enlarged view of area C in

[0028] Figure 11 is Figure 9 an enlarged view of area D in

[0029] Figure 12 is another partial structural schematic diagram at the indoor unit part according to an embodiment of the present utility model.

[0030] Reference numerals:

[0031] 100, window air conditioner; 101, indoor unit part; 102, outdoor unit part;

[0032] 1, outdoor side housing; 11, outdoor air inlet; 12, outdoor air outlet; 13, installation plane;

[0033] 2, indoor side housing; 21, indoor air inlet; 22, indoor air outlet; 23, first top plate; 24, second top plate; 25, third top plate; 26, installation groove;

[0034] 3, outdoor air supply assembly; 4, outdoor heat exchanger;

[0035] 5, indoor air supply assembly; 51, air duct member; 511, scroll tongue; 512, air duct inlet; 513, air duct outlet; 514, air duct main body; 515, arc transition section; 516, arc section; 53, fan; 54, baffle; 541, first section; 542, second section;

[0036] 6, indoor heat exchanger; 61, first heat exchanger; 62, second heat exchanger; 7, air deflector. Detailed implementation manners

[0037] Embodiments of the present utility model will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary.

[0038] Reference will be made below Figures 1 - 12 to describe the window air conditioner 100 according to an embodiment of the present utility model. While ensuring the heat exchange area, it can effectively reduce the space occupied by the indoor heat exchanger 6, thereby achieving the effect of reducing the size of the indoor unit 101 in the height direction.

[0039] In conjunction with Figures 1 - 12 as shown, the window air conditioner 100 according to the first aspect embodiment of the present utility model includes an indoor unit 101 and an outdoor unit 102.

[0040] Among them, the indoor unit 101 and the outdoor unit 102 are located indoors and outdoors respectively. The indoor unit 101 may include an indoor side housing 2 and an indoor air supply assembly 5. The indoor side housing 2 can play a role in protecting and supporting its own internal structure, and the indoor air supply assembly 5 can convey the heat-exchanged air indoors; the outdoor unit 102 may include an outdoor side housing 1 and an outdoor air supply assembly 3, and the outdoor air supply assembly 5 can convey the heat-exchanged air outdoors.

[0041] In addition, the indoor unit 101 includes an indoor heat exchanger 6, and the indoor heat exchanger 6 can achieve heat exchange and transfer by using the temperature difference between fluids (such as refrigerant and air).

[0042] Furthermore, the height of the indoor unit 101 is less than the height of the outdoor unit 102. In this way, the height dimension of the indoor unit 101 can be reduced, the indoor occupied volume can be decreased, and thus the indoor space utilization rate can be improved; moreover, when the height of the indoor unit 101 is reduced, it will be closer to the window sill when the window is lowered, so that outdoor noise can be better isolated and the noise prevention effect can be improved.

[0043] Still further, the indoor heat exchanger 6 includes a first heat exchanger 61 and a second heat exchanger 62. The first heat exchanger 61 is inclined downward in the front-to-back direction, the front end of the second heat exchanger 62 is connected to the rear end of the first heat exchanger 61, and the second heat exchanger 62 is inclined upward in the front-to-back direction.

[0044] That is to say, since the first heat exchanger 61 and the second heat exchanger 62 are inclined and connected to each other, rather than a single plate design, while ensuring the heat exchange area, it can effectively reduce the space occupied by the indoor heat exchanger 6, thereby achieving the effect of reducing the size of the indoor side housing 2 in the height direction (that is, the up-and-down direction).

[0045] Among them, an installation plane 13 is formed at the bottom of the outdoor unit part 102, and the included angle α between the leeward side of the first heat exchanger 61 and the installation plane 13 satisfies the relational expression: 43° ≤ α ≤ 45°. For example, α can be 43°, 44°, and 45°, and is not limited thereto.

[0046] It can be understood that with the above arrangement, on the one hand, it can ensure that the condensed water on the first heat exchanger 61 will smoothly flow along the surface of the fins into the water receiving tray, avoiding problems such as dripping in mid-air and blocking the ventilation of the fins; on the other hand, within a certain height limit, it can also effectively increase the heat exchange area of the first heat exchanger 61, thereby ensuring both the heat exchange efficiency of the first heat exchanger 61 and the utilization rate of the space layout.

[0047] In addition, the included angle β between the leeward side of the second heat exchanger 62 and the installation plane 13 satisfies the relational expression: 45° ≤ β ≤ 48°. For example, β can be 45°, 46°, and 48°, and is not limited thereto.

[0048] That is to say, with the above arrangement, on the one hand, it can ensure that the condensed water on the second heat exchanger 62 will smoothly flow along the surface of the fins into the water receiving tray, avoiding problems such as dripping in mid-air and blocking the ventilation of the fins; on the other hand, within a certain height limit, it can also effectively increase the heat exchange area of the second heat exchanger 62, thereby ensuring both the heat exchange efficiency of the second heat exchanger 62 and the utilization rate of the space layout.

[0049] Thus, by setting the window air conditioner 100, while ensuring the heat exchange area, it can also effectively reduce the space occupied by the indoor heat exchanger 6, thereby achieving the effect of reducing the size of the indoor unit part 101 in the height direction.

[0050] According to some alternative embodiments of the present invention, in combination with Figure 7 、 Figure 8 and Figure 10 As shown, the distance from the front end to the rear end of the first heat exchanger 61 is greater than the distance from the front end to the rear end of the second heat exchanger 62, and the front end of the first heat exchanger 61 is higher than the rear end of the second heat exchanger 62.

[0051] Specifically, with the above arrangement, it can make the heat exchange area of the first heat exchanger 61 larger than that of the second heat exchanger 62. Also, since the first heat exchanger 61 is closer to the indoor air inlet 21, the effective area directly facing the wind blowing from the indoor air inlet 21 (that is, the heat exchange area of the first heat exchanger 61) can be increased, thereby effectively improving the heat exchange efficiency.

[0052] According to some alternative embodiments of the present invention, in combination with Figure 4 、 Figure 7 and Figure 12As shown, the indoor unit 101 further includes an indoor housing 2, a duct member 51, a motor, and a fan 53. An indoor air inlet 21 and an indoor air outlet 22 are formed on the indoor housing 2. The duct member 51 is located between the first heat exchanger 61, the second heat exchanger 62, and the indoor air outlet 22. The fan 53 is disposed within the duct member 51 and is drivingly connected to the motor. For example, the fan 53 may be a cross-flow fan 53.

[0053] Specifically, the indoor air supply assembly 5 is installed within the indoor housing 2 and can be used to guide the air flow from the indoor air inlet 21 to the indoor air outlet 22. The duct member 51 is the main structural member that constitutes the air duct, that is, it can define the channel for the blown air to flow. As the power source, the motor can provide driving force to the fan 53. The motor drives the fan 53 to rotate. The air that has been heat-exchanged by the first heat exchanger 61 and the second heat exchanger 62 is sucked into the fan 53 and flows to the indoor air outlet 22 under the guidance of the duct member 51, thereby generating an air flow with a relatively high wind speed and large air volume.

[0054] Among them, in combination with Figure 7 As shown, the rear end of the first heat exchanger 61 is located directly below the fan 53. The length direction of the indoor heat exchanger 6 is parallel to the central axis direction of the fan 53. Since the rear end of the first heat exchanger 61 is connected to the front end of the second heat exchanger 62, the fan 53 is located directly above the rear end of the first heat exchanger 61. In this way, it can be ensured that the fan 53 can maintain a very close distance from both the first heat exchanger 61 and the second heat exchanger 62, thereby improving the space compactness. It can also prevent the distance from the fan 53 to one of the first heat exchanger 61 and the second heat exchanger 62 from being too far, thus ensuring the heat exchange uniformity and consistency.

[0055] Specifically, in combination with Figures 7 - 9 and Figure 11 As shown, the duct member 51 is a volute. The volute has a volute tongue 511. The volute is located at the rear lower side of the indoor air outlet 22.

[0056] Among them, the volute is usually used in combination with a cross-flow fan 53 (also known as a transverse flow fan 53). The volute mainly plays the role of guiding the air flow and improving the efficiency of the fan 53. The volute is usually in a spiral or semi-spiral shape, and this shape helps the smooth introduction and acceleration of the air flow.

[0057] For example, one end of the volute close to the indoor heat exchanger 6 is the air inlet. The air that has been heat-exchanged by the indoor heat exchanger 6 smoothly enters the interior of the volute from this air inlet. When the air enters the volute, through the geometric shape change inside the volute, the air flow is accelerated and guided in a specific direction. One end of the volute close to the indoor air outlet 22 is the air outlet, and the air flow is discharged through the air outlet (the design of the air outlet usually takes into account the air flow distribution and direction to improve the air flow uniformity and efficiency).

[0058] Among them, when air is accelerated by the impeller of the cross-flow fan, the volute further accelerates the air flow through its gradually shrinking cross-section. The shape of the volute enables the air flow to smoothly diffuse from the center of the impeller outward and move along the spiral path of the volute. The air flow passing through the volute converges at the outlet of the volute, forming an air flow with a certain directionality.

[0059] The volute can reduce the eddy current and turbulence of the air flow, thereby reducing noise; it can also improve the air flow efficiency of the cross-flow fan, making the air flow more uniform and directional.

[0060] In addition, the volute tongue 511 is a protruding structure located at the outlet of the volute, usually close to the end of the volute. The design of the volute tongue 511 can further optimize the distribution and direction of the air flow, thereby further improving the efficiency of the cross-flow fan; it can also reduce the irregular fluctuations of the air flow and improve the operating stability of the cross-flow fan.

[0061] In addition, the volute tongue 511 can reduce the impact noise generated when the air flow passes through the air outlet of the volute, and can also reduce the eddy current of the air flow at the air outlet, improve the uniformity of the air flow, thereby improving the overall efficiency of the fan 53 and reducing energy loss.

[0062] Optionally, when the fan 53 adopts a cross-flow fan, the cross-flow fan can suck in air by the rotation of the impeller and discharge the air along the direction of the volute by using the centrifugal force. In this way, the cross-flow fan can generate a uniform air flow and maintain a high air volume even at a low rotational speed, thereby reducing noise and improving efficiency.

[0063] Among them, the core component of the cross-flow fan is the impeller, which is usually composed of slender centrifugal blades. The diameter of the impeller is small and the length is long. The shape of the impeller blades is similar to that of a propeller, but longer and flatter, usually forward multi-wing blades. This design of the impeller enables air to be sucked in from one end of the impeller and discharged along the axial direction from the other end.

[0064] When air enters from one side of the cross-flow fan and is accelerated by the multi-wing blades of the impeller, it is discharged along the direction perpendicular to the axis of the impeller. The entry and discharge of the air flow are both perpendicular to the axis of the impeller, that is, the air flows along the direction perpendicular to the axis when entering and leaving the cross-flow fan.

[0065] The motor can drive the impeller to rotate. When the impeller rotates, air is sucked in and compressed and accelerated along the axial direction. As the rotational speed of the impeller increases, the air flow speed also increases, thereby increasing the air volume and air pressure.

[0066] In addition, the air flow generated by the cross-flow fan is characterized by a large air volume, a low air pressure, a low rotational speed, and low noise. Due to the shape and arrangement of the blades, the air will be pushed into the interior of the air duct, forming a high-pressure area. Due to the continuous formation and change of this high-low pressure area, the air is forced to flow, thus forming an air flow.

[0067] Furthermore, as shown in Figure 5 and Figure 7 , the window air conditioner 100 further includes a wind deflector 7. The wind deflector 7 is disposed at the indoor air outlet 22 and is selectively rotatable relative to the indoor side housing 2 for adjusting the air outlet angle.

[0068] It can be understood that the wind deflector 7 is mainly used to control the flow direction and intensity of the blown air. For example, the user can adjust the position of the wind deflector 7 according to their own needs, thereby controlling the wind direction, avoiding the cold or warm air from directly blowing on the human body, and improving the comfort of the wind feeling.

[0069] For another example, the wind deflector 7 can help the air to be more evenly and widely distributed in the indoor space, avoid local overcooling or overheating, and improve the air circulation efficiency. For yet another example, appropriately adjusting the wind deflector 7 can reduce the noise generated by the air flow and improve the user experience.

[0070] Among them, as shown in Figure 7 and Figure 8 , there is an angle γ between the volute tongue 511 and the installation plane 13, and γ satisfies the relational expression: 0° ≤ γ ≤ 5°. In this way, the volute tongue 511 and the installation plane 13 can be kept substantially parallel to each other, that is, the blown air can smoothly blow out along the air outlet of the volute, and the air supply distance is farther, and the ineffective loss air volume of the air supply is less, thereby improving the air supply efficiency and further improving the user experience. For example, the angle γ between the volute tongue 511 and the installation plane 13 can be 0°, 1°, 2°, 3°, and 5°, and is not limited thereto.

[0071] In addition, as shown in Figure 7 and Figure 8 , the angle between the wind deflector 7 and the volute tongue 511 is δ, and δ satisfies the relational expression: 30° ≤ δ ≤ 40°. In this way, the air supply range of the blown air forward and upward can be larger, thereby improving the air supply coverage and further improving the user experience.

[0072] Specifically, as shown in Figure 9 , the air duct member 51 has an air duct inlet 512 and an air duct outlet 513. The air duct inlet 512 faces the first heat exchanger 61 and / or the second heat exchanger 62, and the air duct outlet 513 faces the indoor air outlet 22.

[0073] For example, the air duct member 51 is formed with an air duct inlet 512 facing the first heat exchanger 61 and the second heat exchanger 62. The air duct inlet 512 can serve as an inlet for the post-heat-exchange air flow to enter the interior of the air duct member 51. The air duct member 51 is formed with an air duct outlet 513 facing the indoor air outlet 22. The air duct outlet 513 can serve as an outlet for the post-heat-exchange air flow to flow out of the air duct member 51.

[0074] Among them, the lowest point of the air duct inlet 512 is lower than the highest point of the rear end of the second heat exchanger 62. In this way, it can be ensured that the air flow inhaled by the air duct inlet 512 near the second heat exchanger 62 is the air flow that has undergone heat exchange in the second heat exchanger 62, so as to ensure the temperature uniformity and consistency of the heat exchange air flow in the air duct member 51, and further improve the heat exchange efficiency.

[0075] Further, as shown in Figure 12 the air duct member 51 includes an air duct main body 514, an arc transition section 515 and an arc section 516. The fan 53 is arranged in the air duct main body 514 and forms the air duct outlet 513. One end of the arc transition section 515 is connected to one end of the air duct main body 514 close to the second heat exchanger 62. The arc section 516 is connected to the other end of the arc transition section 515. The arc section 516 and the air duct main body 514 form the air duct inlet 512. The arc section 516 protrudes in the direction away from the fan 53, and the arc section 516 is located in front of the second heat exchanger 62.

[0076] It can be understood that the fan 53 is arranged in the air duct main body 514, and the fan 53 can generate centrifugal force on the air flow, so as to transport the air flow at the air duct inlet 512 to the air duct outlet 513.

[0077] Among them, since the fan 53 forms a countercurrent when driving the air flow near the air duct inlet 512 on the air duct main body 514, resulting in noise problems, by adding the arc section 516 far from the fan 53, on the one hand, the length of the air duct main body 514 on the side close to the second heat exchanger 62 can be extended, and on the other hand, the arc section 516 can be made as close as possible to the second heat exchanger 62, reducing the gap between the arc section 516 and the leeward side of the second heat exchanger 62, so as to enhance the guiding effect on the air flow, and further reduce the noise risk caused by air flow turbulence and countercurrent.

[0078] Specifically, as shown in Figure 4 、 Figure 7 、 Figure 10 and Figure 12 the indoor unit part 101 further includes a baffle 54. The baffle 54 is connected to the rear of the air duct member 51. The baffle 54 is located above the rear end of the second heat exchanger 62. The baffle 54 is used to block the upward flow of the air flow and block the rainwater above from falling into the second heat exchanger 62.

[0079] That is to say, a baffle 54 is provided above the rear end of the second heat exchanger 62. With such an arrangement, on the one hand, it can prevent the air exchanging heat with the second heat exchanger 62 from flowing upward to form the problem of condensation. On the other hand, it can also prevent the problem that external water droplets enter the interior of the indoor side casing 2 and drip onto the second heat exchanger 62, thereby improving the waterproofness and safety inside the window air conditioner 100.

[0080] Furthermore, as shown in Figure 9 and Figure 10 , the baffle 54 includes a first section 541 and a second section 542. One end of the first section 541 is connected to the rear of the air duct member 51. The first section 541 extends obliquely downward in the front-to-back direction. The second section 542 is connected to the other end of the first section 541. The first section 541 extends obliquely downward in the front-to-back direction. The lowest point of the second section 542 is lower than the highest point of the rear end of the second heat exchanger 62.

[0081] It can be understood that with the above arrangement, the first section 541 can follow the outer contour of the second heat exchanger 62 and extend downward in a conforming and inclined manner. The second section 542 bends to change the extending direction of the first section 541, increasing the protection area for the second heat exchanger 62, so as to ensure that the water droplets flowing into the indoor side casing 2 cannot drip onto the second heat exchanger 62.

[0082] Specifically, as shown in Figure 4 , Figure 7 and Figure 9 , the outdoor unit part 102 includes an outdoor side casing 1, and the outdoor side casing 1 is connected to the rear of the indoor side casing 2; the indoor side casing 2 includes a first top plate 23, a second top plate 24 and a third top plate 25. The first top plate 23 is horizontally arranged. The front end of the second top plate 24 is connected to the first top plate 23. The second top plate 24 extends obliquely downward in the front-to-back direction. The third top plate 25 is horizontally arranged. The front end of the third top plate 25 is connected to the rear end of the second top plate 24. The rear end of the third top plate 25 is connected to the outdoor side casing 1.

[0083] Among them, the outdoor side casing 1 and the indoor side casing 2 are connected to form a whole, which can increase their respective weights and spatial modes, thereby improving their respective structural strengths and flexural and torsional rigidities.

[0084] Optionally, an outdoor air inlet 11 and an outdoor air outlet 12 are formed on the outdoor side casing 1. The outdoor air supply assembly 3 is installed inside the outdoor side casing 1 and is used to guide the air flow from the outdoor air inlet 11 to the outdoor air outlet 12. The outdoor heat exchanger 4 is arranged between the outdoor air inlet 11 and the outdoor air supply assembly 3, so that the air flow exchanges heat with the outdoor heat exchanger 4 and then flows to the outdoor air supply assembly 3.

[0085] In addition, both the first top plate 23 and the second top plate 24 are horizontally arranged, so that they can effectively extend towards the outdoor side casing 1, reducing material consumption and improving the manufacturability.

[0086] Furthermore, an installation groove 26 is formed between the second top plate 24, the third top plate 25 and the outdoor side casing 1, and the installation groove 26 is used for installing the lower edge of the window.

[0087] Specifically, the first top plate 23, the second top plate 24 and the third top plate 25 are sequentially connected in the front-to-back direction. The second top plate 24 changes the extending direction of the first top plate 23, and the second top plate 24 extends obliquely downward. In this way, the outer contour dimension of the indoor side casing 2 near the window side can be shortened, so that the window can drop into the installation groove 26 with a lower height (that is, the window is closer to the window sill), thereby improving the effect of the window isolating outdoor noise.

[0088] The window air conditioner 100 according to the second aspect embodiment of the present invention includes an indoor unit part 101 and an outdoor unit part 102, and the height of the indoor unit part 101 is less than the height of the outdoor unit part 102.

[0089] Furthermore, the height of the indoor unit part 101 is less than the height of the outdoor unit part 102, so that the height dimension of the indoor unit part 101 can be reduced, and the indoor occupied volume can be decreased, thereby improving the space utilization rate of the room; and when the height of the indoor unit part 101 is reduced, the window will be closer to the window sill when it drops, so that the outdoor noise can be better isolated and the anti-noise effect can be improved.

[0090] Furthermore, the indoor unit part 101 includes an indoor heat exchanger 6. The indoor heat exchanger 6 includes a first heat exchanger 61 and a second heat exchanger 62. The first heat exchanger 61 is inclined downward in the front-to-back direction, and the front end of the second heat exchanger 62 is connected to the rear end of the first heat exchanger 61. The second heat exchanger 62 is inclined upward in the front-to-back direction.

[0091] Wherein, an installation plane 13 is formed at the bottom of the outdoor unit part 102. The included angle between the windward side of the first heat exchanger 61 and the installation plane 13 is α, and α satisfies the relational expression: 43° ≤ α ≤ 50°; the included angle between the windward side of the second heat exchanger 62 and the installation plane 13 is β, and β satisfies the relational expression: 45° ≤ β ≤ 50°.

[0092] It can be understood that, with the above arrangement, on the one hand, it can ensure that the condensed water on the first heat exchanger 61 and the second heat exchanger 62 will smoothly flow along the surface of the fins into the water receiving tray, avoiding the problems of dripping in mid-air and blocking the fin ventilation; on the other hand, within a certain height limit, it can effectively increase the heat exchange area on the first heat exchanger 61 and the second heat exchanger 62, thereby ensuring both the heat exchange efficiency and the utilization rate of the space layout on the first heat exchanger 61 and the second heat exchanger 62.

[0093] The window air conditioner 100 includes an indoor unit and an outdoor unit. The indoor unit and the outdoor unit are connected by pipelines to transfer refrigerant. The indoor unit includes an indoor heat exchanger 6 and an indoor fan 53. The outdoor unit includes a compressor, a four-way valve, an outdoor heat exchanger 4, an outdoor fan 53, and an expansion valve. The compressor, the outdoor heat exchanger 4, the expansion valve, and the indoor heat exchanger 6 connected in sequence form a refrigerant circuit, and the refrigerant circulates in the refrigerant circuit, and exchanges heat with air through the outdoor heat exchanger 4 and the indoor heat exchanger 6 respectively to achieve the cooling mode or the heating mode of the air conditioner.

[0094] The compressor is configured to compress the refrigerant so that the low-pressure refrigerant is compressed to form a high-pressure refrigerant.

[0095] The outdoor heat exchanger 4 is configured to exchange heat between the outdoor air and the refrigerant flowing in the outdoor heat exchanger 4. For example, the outdoor heat exchanger 4 operates as a condenser in the cooling mode of the air conditioner, so that the refrigerant compressed by the compressor dissipates heat to the outdoor air through the outdoor heat exchanger 4 and condenses. The outdoor heat exchanger 4 operates as an evaporator in the heating mode of the air conditioner, so that the decompressed refrigerant absorbs the heat of the outdoor air through the outdoor heat exchanger 4 and evaporates.

[0096] In some embodiments, the outdoor heat exchanger 4 further includes heat exchange fins to expand the contact area between the outdoor air and the refrigerant flowing in the outdoor heat exchanger 4, thereby improving the heat exchange efficiency between the outdoor air and the refrigerant.

[0097] The outdoor fan 53 is configured to suck the outdoor air into the outdoor unit through the air inlet of the outdoor unit and send the outdoor air after heat exchange with the outdoor heat exchanger 4 out through the air outlet of the outdoor unit. The outdoor fan 53 provides power for the flow of the outdoor air.

[0098] The expansion valve is connected between the outdoor heat exchanger 4 and the indoor heat exchanger 6, and the opening degree of the expansion valve adjusts the refrigerant pressure flowing through the outdoor heat exchanger 4 and the indoor heat exchanger 6 to adjust the refrigerant flow rate flowing between the outdoor heat exchanger 4 and the indoor heat exchanger 6. The flow rate and pressure of the refrigerant flowing between the outdoor heat exchanger 4 and the indoor heat exchanger 6 will affect the heat exchange performance of the outdoor heat exchanger 4 and the indoor heat exchanger 6. The expansion valve can be an electronic valve. The opening degree of the expansion valve is adjustable to control the flow rate and pressure of the refrigerant flowing through the expansion valve.

[0099] The four-way valve is connected within the refrigerant circuit and is configured to switch the flow direction of the refrigerant in the refrigerant circuit so that the air conditioner executes a cooling mode or a heating mode.

[0100] The indoor heat exchanger 6 is configured to exchange heat between the indoor air and the refrigerant flowing through the indoor heat exchanger 6. For example, the indoor heat exchanger 6 operates as an evaporator in the cooling mode of the air conditioner, such that the refrigerant that has dissipated heat through the outdoor heat exchanger 4 absorbs the heat of the indoor air through the indoor heat exchanger 6 and evaporates. The indoor heat exchanger 6 operates as a condenser in the heating mode of the air conditioner, such that the refrigerant that has absorbed heat through the outdoor heat exchanger 4 dissipates the heat to the indoor air through the indoor heat exchanger 6 and condenses.

[0101] In some embodiments, the indoor heat exchanger 6 further includes heat exchange fins to increase the contact area between the indoor air and the refrigerant flowing through the indoor heat exchanger 6, thereby improving the heat exchange efficiency between the indoor air and the refrigerant.

[0102] The indoor fan 53 is configured to suck the indoor air into the indoor unit through the air inlet of the indoor unit and send the indoor air that has exchanged heat with the indoor heat exchanger 6 out through the air outlet of the indoor unit. The indoor fan 53 provides power for the flow of the indoor air.

[0103] The air conditioner further includes a control device. The control device is configured to control the operating frequency of the compressor, the opening degree of the expansion valve, the rotational speed of the outdoor fan 53, and the rotational speed of the indoor fan 53. The control device is connected to the compressor, the expansion valve, the outdoor fan 53, and the indoor fan 53 through data lines to transmit communication information.

[0104] The control device includes a processor. The processor may include a central processing unit (CPU), a microprocessor, an application specific integrated circuit (ASIC), and may be configured to perform the corresponding operations described in the control device when the processor executes a program stored in a non-transitory computer-readable medium coupled to the control device. The non-transitory computer-readable storage medium may include a magnetic storage device (e.g., a hard disk, a floppy disk, or a magnetic tape), a smart card, or a flash memory device (e.g., an erasable programmable read-only memory (EPROM), a card, a stick, or a key drive).

[0105] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0106] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0107] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0108] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

[0109] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0110] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A window air conditioner, comprising: An indoor unit and an outdoor unit, the indoor unit including an indoor heat exchanger; Characterized in that the height of the indoor unit is less than the height of the outdoor unit; The indoor heat exchanger includes: A first heat exchanger, the first heat exchanger being inclined downward in the front-to-back direction; A second heat exchanger, the front end of the second heat exchanger being connected to the rear end of the first heat exchanger, the second heat exchanger being inclined upward in the front-to-back direction, wherein, An installation plane is formed at the bottom of the outdoor unit, and the included angle between the leeward side of the first heat exchanger and the installation plane is α, and α satisfies the relation: 43° ≤ α ≤ 45°; The included angle between the leeward side of the second heat exchanger and the installation plane is β, and β satisfies the relation: 45° ≤ β ≤ 48°.

2. The window air conditioner according to claim 1, wherein, The distance from the front end to the rear end of the first heat exchanger is greater than the distance from the front end to the rear end of the second heat exchanger, and the front end of the first heat exchanger is higher than the rear end of the second heat exchanger.

3. The window air conditioner according to claim 1, characterized in that, The indoor unit further includes: An indoor side casing, an indoor air inlet and an indoor air outlet being formed on the indoor side casing; An air duct member, the air duct member being located between the first heat exchanger, the second heat exchanger and the indoor air outlet; A motor; A fan, the fan being arranged in the air duct member, the fan being in transmission connection with the motor; Wherein, the rear end of the first heat exchanger is located directly below the fan.

4. The window air conditioner according to claim 3, wherein The air duct member is a volute, the volute having a volute tongue, the volute being located at the rear lower part of the indoor air outlet; The window air conditioner further includes: A wind deflector, the wind deflector being arranged at the indoor air outlet, the wind deflector being selectively rotatable relative to the indoor side casing for adjusting the air outlet angle; Wherein, An included angle γ exists between the volute tongue and the installation plane, and γ satisfies the relation: 0° ≤ γ ≤ 5°; The included angle between the wind deflector and the volute tongue is δ, and δ satisfies the relation: 30° ≤ δ ≤ 40°.

5. The window air conditioner according to claim 3, characterized in that, The air duct member has an air duct inlet and an air duct outlet, the air duct inlet facing the first heat exchanger and / or the second heat exchanger, the air duct outlet facing the indoor air outlet, and the lowest point of the air duct inlet being lower than the highest point of the rear end of the second heat exchanger.

6. The window air conditioner according to claim 5, characterized in that, The air duct member includes: An air duct main body, the fan being arranged in the air duct main body and forming the air duct outlet; An arc transition section, one end of the arc transition section being connected to one end of the air duct main body close to the second heat exchanger; An arc section, the arc section being connected to the other end of the arc transition section, the arc section and the air duct main body forming the air duct inlet, the arc section protruding away from the fan and being located in front of the second heat exchanger.

7. The window air conditioner according to claim 3, wherein The indoor unit further includes: A baffle, the baffle being connected to the rear of the air duct member, the baffle being located above the rear end of the second heat exchanger, the baffle being used for blocking the upward flow of air and blocking rainwater above from falling into the second heat exchanger.

8. The window air conditioner according to claim 7, wherein, The baffle includes: A first section, one end of the first section being connected to the rear of the air duct member, the first section extending obliquely downward in the front-to-back direction; The second section is connected to the other end of the first section. The first section extends obliquely downward in the front-to-back direction, and the lowest point of the second section is lower than the highest point of the rear end of the second heat exchanger.

9. The window air conditioner according to claim 3, characterized in that, The outdoor unit portion includes an outdoor housing, and the outdoor housing is connected to the rear of the indoor housing. The indoor housing includes: A first top plate, which is horizontally arranged. A second top plate, the front end of which is connected to the first top plate, and the second top plate extends obliquely downward in the front-to-back direction. A third top plate, which is horizontally arranged, the front end of which is connected to the rear end of the second top plate, and the rear end of the third top plate is connected to the outdoor housing. An installation groove is formed between the second top plate, the third top plate and the outdoor housing, and the installation groove is used for installing the lower edge of the window.

10. A window air conditioner, comprising: An indoor unit portion and an outdoor unit portion, the indoor unit portion including an indoor heat exchanger. It is characterized in that the height of the indoor unit portion is less than the height of the outdoor unit portion. The indoor heat exchanger includes: A first heat exchanger, which is obliquely arranged downward in the front-to-back direction, and a second heat exchanger, the front end of which is connected to the rear end of the first heat exchanger, and the second heat exchanger is obliquely arranged upward in the front-to-back direction. Among them, An installation plane is formed at the bottom of the outdoor unit portion, and the included angle between the leeward side of the first heat exchanger and the installation plane is α, and α satisfies the relationship: 43° ≤ α ≤ 50°; or The included angle between the leeward side of the second heat exchanger and the installation plane is β, and β satisfies the relationship: 45° ≤ β ≤ 50°.

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