Air conditioner indoor unit and air conditioner

Abstract

This application relates to the field of refrigeration equipment, and discloses an indoor air conditioning unit comprising: a heat exchange body, including a heat exchange shell and a heat exchanger disposed within the heat exchange shell, the heat exchange shell being provided with a heat exchange air outlet for blowing out heat exchange air; and an air duct, disposed below the heat exchange air outlet, the air duct including an air duct shell and an air duct fan disposed within the air duct shell, an air duct spacing being provided between the heat exchange shell and the air duct shell, wherein an air duct outlet is provided on the front side of the air duct shell, and the air outlet of the air duct fan faces the air duct outlet and is inclined downwards, so that the air duct introduces indoor air from the air duct spacing. By providing an air duct spacing between the heat exchange shell and the air duct shell, the indoor air can be mixed with the heat exchange air to obtain uniformly heated air, which is then blown towards the user, improving user comfort. This application also discloses an air conditioner.

Description

Technical Field

[0001] This application relates to the field of refrigeration equipment technology, such as an indoor air conditioning unit and an air conditioner. Background Technology

[0002] An air conditioner indoor unit contains a heat exchanger and a heat exchange fan to blow out the cooling or heating energy from the heat exchanger. For example, when the air conditioner is operating in cooling mode, the heat exchange air blown out from the heat exchange outlet of the indoor unit is generally at a lower temperature and has a higher air velocity, which reduces the user's comfort.

[0003] In related technologies, heat exchange air is dispersed and then blown toward the user by setting up a heat dissipation component inside the indoor unit of the air conditioner, thereby improving the user's comfort.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] The air diffuser components inside the indoor unit of an air conditioner typically include multiple diffuser fans. These fans disperse the heat exchange air from the heat exchanger before blowing it towards the user, providing a more even airflow experience. However, the diffuser components also cause significant airflow loss during heat exchange, reducing the cooling or heating efficiency of the indoor unit.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides an indoor air conditioning unit and an air conditioner, which, while avoiding airflow loss in heat exchange air, provides a new indoor air conditioning unit with uniform airflow function to improve user comfort.

[0009] In some embodiments, the indoor unit of the air conditioner includes: a heat exchange body, including a heat exchange shell and a heat exchanger disposed within the heat exchange shell, the heat exchange shell being provided with a heat exchange air outlet for blowing out heat exchange air; and an air duct, disposed below the heat exchange air outlet, the air duct including an air duct shell and an air duct fan disposed within the air duct shell, an air duct spacing being provided between the heat exchange shell and the air duct shell, wherein an air duct air outlet is provided on the front side of the air duct shell, and the fan outlet of the air duct fan faces the air duct air outlet and is inclined downward, so that the air duct introduces indoor air from the air duct spacing.

[0010] In some alternative embodiments, the angle between the exhaust outlet of the induced draft fan and the horizontal plane is greater than or equal to 5°.

[0011] In some alternative embodiments, the angle between the exhaust outlet of the induced draft fan and the horizontal plane is less than or equal to 25°.

[0012] In some alternative embodiments, the angle between the exhaust outlet of the induced draft fan and the horizontal plane is greater than or equal to 10° and less than or equal to 20°.

[0013] In some optional embodiments, the distance between the upper and lower air-drawing edges of the air outlet is a first distance, and the distance between the upper and lower air-discharge edges of the fan outlet is a second distance, wherein the first distance is greater than or equal to the second distance.

[0014] In some alternative embodiments, an air duct grille is provided at the air outlet, wherein the downward tilt angle of the air duct grille is greater than or equal to the tilt angle of the fan outlet.

[0015] In some alternative embodiments, the lower heat exchange edge of the heat exchange outlet is located at a first position of the heat exchange housing, and the induced draft outlet is located at a second position of the induced draft housing, wherein the second position is located in front of the first position.

[0016] In some optional embodiments, an air inlet is provided on the lower side of the air inlet housing, and an air inlet facing the air inlet is provided on the air inlet fan. The distance between the front air inlet edge and the rear air inlet edge is a third distance, and the distance between the front air inlet edge and the rear air inlet edge is a fourth distance, wherein the third distance is less than or equal to the fourth distance.

[0017] In some alternative embodiments, the induced draft fan includes a centrifugal fan.

[0018] This disclosure also provides an air conditioner, including an indoor unit as described in any of the foregoing embodiments.

[0019] The air conditioner indoor unit and air conditioner provided in this disclosure can achieve the following technical effects:

[0020] The air conditioning indoor unit provided in this embodiment includes a heat exchange body and an air duct, with the air duct disposed below the heat exchange outlet of the heat exchange body. An air duct spacing is provided between the heat exchange shell of the heat exchange body and the air duct shell of the air duct. The air outlet of the air duct fan within the air duct is inclined downwards. When the heat exchange fan in the heat exchange body and the air duct fan in the air duct are turned on, a negative pressure is formed below the heat exchange outlet due to the downward inclination of the air outlet. This allows the air duct to draw indoor air from the air duct spacing between the heat exchange shell and the air duct shell. The indoor air ducted within the air duct spacing is directed towards the heat exchange outlet, and the indoor air duct mixes with the heat exchange air to obtain uniformly heated air, which is then directed towards the user, improving user comfort.

[0021] Meanwhile, in the air conditioner indoor unit provided in this embodiment, an air-guiding component with a uniform airflow function is disposed at the lower part of the heat exchange body of the air conditioner indoor unit, so that the indoor air is drawn in and mixed with the heat exchange air before being blown uniformly to the user. Compared with a uniform airflow structure that disperses the heat exchange air, the air conditioner indoor unit with a uniform airflow function provided in this embodiment reduces the airflow loss of the heat exchange air and improves the cooling or heating energy efficiency of the air conditioner indoor unit.

[0022] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0023] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0024] Figure 1 This is a cross-sectional structural diagram of an indoor air conditioner unit provided in an embodiment of this disclosure, wherein the arrow indicates the direction of airflow;

[0025] Figure 2 This is a cross-sectional view of another air conditioner indoor unit provided in this embodiment;

[0026] Figure 3 This is a cross-sectional view of another air conditioner indoor unit provided in this embodiment;

[0027] Figure 4 This is one of the embodiments provided in this disclosure. Figure 3 A magnified view of a portion of region X in the middle;

[0028] Figure 5 This is another embodiment provided in this disclosure. Figure 3 A magnified view of a portion of region X in the middle;

[0029] Figure 6 This is a simulation diagram of the airflow velocity during normal operation of an indoor air conditioning unit provided in this embodiment of the disclosure;

[0030] Figure 7 This is another simulation diagram of airflow velocity during normal operation of an indoor air conditioning unit provided in this embodiment.

[0031] Figure label:

[0032] 100: Heat exchanger body; 110: Heat exchanger shell; 111: Heat exchanger air outlet; 120: Heat exchanger;

[0033] 200: Exhaust fan; 210: Exhaust fan housing; 211: Exhaust fan outlet; 212: Exhaust fan inlet; 220: Exhaust fan; 221: Fan outlet; 222: Fan inlet;

[0034] d: Exhaust distance;

[0035] d1: First distance; d2: Second distance; d3: Third distance; d4: Fourth distance;

[0036] α: The angle between the exhaust outlet of the induced draft fan and the horizontal plane. Detailed Implementation

[0037] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0038] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0039] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0040] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0041] Unless otherwise stated, the term "multiple" means two or more.

[0042] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0043] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0044] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0045] An air conditioner indoor unit contains a heat exchanger and a heat exchange fan to blow out the cooling or heating energy from the heat exchanger. To improve user comfort, related technologies use a diffuser assembly inside the indoor unit to disperse the heat exchange air before blowing it towards the user. This diffuser assembly typically includes multiple diffusers that disperse the heat exchange air before blowing it towards the user, providing a more even airflow experience. However, the diffuser assembly causes significant airflow loss, reducing the cooling or heating efficiency of the indoor unit.

[0046] Combination Figures 1 to 7As shown, this embodiment of the present disclosure provides an indoor air conditioning unit. The indoor air conditioning unit includes a heat exchange body 100 and an air duct 200. The heat exchange body 100 includes a heat exchange shell 110 and a heat exchanger 120 disposed within the heat exchange shell 110. The heat exchange shell 110 is provided with a heat exchange air outlet 111 for blowing out heat exchange air. The air duct 200 is disposed below the heat exchange air outlet 111. The air duct 200 includes an air duct shell 210 and an air duct fan 220 disposed within the air duct shell 210. An air duct spacing d is provided between the heat exchange shell 110 and the air duct shell 210. The air duct shell 210 has an air duct outlet 211 on its front side. The fan outlet 221 of the air duct fan 220 faces the air duct outlet 211 and is inclined downwards, so that the air duct 200 introduces indoor air from the air duct spacing d.

[0047] The air conditioning indoor unit provided in this embodiment includes a heat exchange body 100 and an air duct 200, with the air duct 200 disposed below the heat exchange outlet 111 of the heat exchange body 100. An air duct spacing d is provided between the heat exchange housing 110 of the heat exchange body 100 and the air duct housing 210 of the air duct 200. The air outlet 221 of the air duct fan 220 within the air duct 200 is inclined downwards. When the heat exchange fan in the heat exchange body 100 and the air duct fan 220 in the air duct 200 are turned on, a negative pressure is formed below the heat exchange outlet 111 due to the downward inclination of the air outlet 221 of the air duct fan 220. Thus, the air duct 200 can introduce indoor air from the air duct spacing d between the heat exchange housing 110 and the air duct housing 210. The indoor induced air introduced within the air induced distance d is directed towards the heat exchange air outlet 111. The indoor induced air can be mixed with the heat exchange air to obtain uniform heat exchange air, which is then blown towards the user, improving the user's comfort.

[0048] Meanwhile, in the air conditioner indoor unit provided in this embodiment, an air-guiding component 200 with a uniform airflow function is disposed at the lower part of the heat exchange body 100 of the air conditioner indoor unit, so as to mix the indoor airflow with the heat exchange air and then blow uniform air to the user. Compared with the uniform airflow structure that disperses the heat exchange air, the air conditioner indoor unit with a uniform airflow function provided in this embodiment reduces the airflow loss of the heat exchange air and improves the cooling or heating energy efficiency of the air conditioner indoor unit.

[0049] Combination Figure 2As shown, in some optional embodiments, an air-drawing distance d is provided between the heat exchange housing 110 and the air-drawing housing 210, and the air-drawing distance d is 15-85mm. By setting the air-drawing distance d between the heat exchange housing 110 and the air-drawing housing 210 to 15-85mm, the gap between them can be selected within the range of 15-85mm. This ensures that the air-drawing component 200 effectively introduces indoor air from within the air-drawing distance d between the heat exchange housing 110 and the air-drawing housing 210, allowing the indoor air to mix with the heat-exchange air to obtain uniformly heated air, which is then blown towards the user to improve user comfort. For example, the air-drawing distance d can be 15mm, 25mm, 35mm, 45mm, 55mm, 65mm, 75mm, or 85mm.

[0050] Combination Figure 1 , Figure 6 and Figure 7 As shown, when the heat exchange fan in the heat exchange body 100 and the induced draft fan 220 in the induced draft component 200 are turned on, Figure 1 Arrow f1 indicates the direction of the heat exchange air blown out from the heat exchange outlet 111 of the heat exchange body 100; arrow f2 indicates the direction of the indoor air blown out from the exhaust outlet 211 of the exhaust fan 200; arrow f3 indicates the direction of the indoor exhaust air introduced from the exhaust distance d between the heat exchange shell 110 and the exhaust shell 210. Because the exhaust fan 220's outlet 221 is inclined downwards, a negative pressure is formed at the lower part of the heat exchange outlet 111. Thus, the exhaust fan 200 can introduce indoor air from within the exhaust distance d between the heat exchange shell 110 and the exhaust shell 210. The indoor exhaust air introduced within the exhaust distance d is directed towards the heat exchange air at the heat exchange outlet 111. The indoor exhaust air blown out from the exhaust outlet 211 of the exhaust fan 200 thoroughly mixes with the heat exchange air to obtain a uniformly mixed airflow. The total air volume is the sum of the air volume of the heat exchange air blown out from the heat exchange outlet 111 of the heat exchange body 100, the air volume of the indoor air blown out from the air outlet 211 of the air duct 200, and the air volume of the indoor induced air introduced from the air duct spacing d between the heat exchange shell 110 and the air duct shell 210. The air duct efficiency of the air conditioner indoor unit is the ratio of the indoor induced air volume to the total air volume.

[0051] In one specific embodiment, a centrifugal fan is used as the induced draft fan 220. The centrifugal fan speed is set to 1200 rpm, resulting in an air volume of 89 m³ / h. 3 / h. Combined Figure 7As shown, when the heat exchange fan in the heat exchange body 100 and the induced draft fan 220 in the induced draft component 200 are turned on, the following air volumes are obtained through testing: the air volume of the heat exchange air blown out from the heat exchange outlet 111 of the heat exchange body 100 is c; the air volume of the indoor air blown out from the induced draft outlet 211 of the induced draft component 200 is a; and the air volume of the indoor induced draft introduced from the induced draft distance d between the heat exchange shell 110 and the induced draft shell 210 is b. Where a equals 89 m³ / s. 3 / h, b equals 77m 3 / h, c equals 511m 3 If the air extraction efficiency of the indoor unit is / h, then the air extraction efficiency of the indoor unit is the ratio of a to the sum of a, b, and c, which means the air extraction efficiency of the indoor unit is 11.4%.

[0052] Combination Figure 4 As shown, in some optional embodiments, the air outlet 221 of the induced draft fan 220 is set at a preset angle with the horizontal plane, and the opening of the preset angle faces downward. By setting the air outlet 221 of the induced draft fan 220 at a preset angle with the horizontal plane facing downward, the indoor air blown out by the air outlet 221 of the induced draft fan 220 can be mixed with the indoor induced draft air and heat exchange air and then blown evenly to the user, thereby improving the user's comfort.

[0053] In some alternative embodiments, the angle α between the fan outlet 221 of the induced draft fan 220 and the horizontal plane is greater than or equal to 5°.

[0054] Setting the angle α between the exhaust outlet 221 of the induced draft fan 220 and the horizontal plane to be greater than or equal to 5° ensures that the indoor air blown from the exhaust outlet 221 mixes with the heat exchange air, thus providing uniform airflow to the user. For example, the angle α between the exhaust outlet 221 and the horizontal plane can be 5°, 8°, 10°, 13°, 15°, 18°, 20°, 22°, or 25°. If the angle α is set too small, the indoor air blown from the exhaust outlet 221 may exert a certain impact force on the heat exchange air, resulting in greater loss of heat exchange airflow.

[0055] In some alternative embodiments, the angle α between the fan outlet 221 of the induced draft fan 220 and the horizontal plane is less than or equal to 25°.

[0056] Setting the angle α between the air outlet 221 of the induced draft fan 220 and the horizontal plane to less than or equal to 25° ensures that even if the air outlet 221 of the induced draft fan 220 tilts downwards, the tilt angle will not be too large. This guarantees that the indoor air blown from the air outlet 221 of the induced draft fan 220 mixes with the heat exchange air, thus providing uniform airflow to the user. For example, the angle α between the air outlet 221 of the induced draft fan 220 and the horizontal plane can be 5°, 9°, 11°, 14°, 17°, 19°, 21°, 23°, or 25°. If the angle α between the air outlet 221 of the induced draft fan 220 and the horizontal plane is set too large, the indoor air blown from the air outlet 221 of the induced draft fan 220 may not effectively mix with the heat exchange air, thereby reducing the comfort of the uniform airflow to the user.

[0057] In some alternative embodiments, the angle α between the fan outlet 221 of the induced draft fan 220 and the horizontal plane is greater than or equal to 10° and less than or equal to 20°.

[0058] Setting the angle α between the air outlet 221 of the induced draft fan 220 and the horizontal plane to be greater than or equal to 10° and less than or equal to 20° allows for a higher degree of mixing between the indoor induced draft air and the heat exchange air, while ensuring that the indoor air blown from the air outlet 221 of the induced draft fan 220 is mixed with the heat exchange air. This results in a more uniform and comfortable airflow to the user. For example, the angle α between the air outlet 221 of the induced draft fan 220 and the horizontal plane can be 10°, 11°, 12°, 13°, 14°, 15°, 16°, 17°, 18°, 19°, or 20°.

[0059] In some optional embodiments, the distance between the upper and lower air-drawing edges of the air outlet 211 is a first distance d1, and the distance between the upper and lower air-discharge edges of the fan outlet 221 is a second distance d2, wherein the first distance d1 is greater than or equal to the second distance d2.

[0060] Combination Figure 5As shown, the distance between the upper and lower air-drawing edges of the air outlet 211 is defined as the first distance d1, and the distance between the upper and lower air-discharge edges of the fan outlet 221 is defined as the second distance d2. The first distance d1 is greater than or equal to the second distance d2, meaning the distance between the upper and lower air-drawing edges of the air outlet 211 is greater than or equal to the distance between the upper and lower air-discharge edges of the fan outlet 221. When the first distance d1 is greater than the second distance d2, it can be understood that the first distance d1 is only slightly greater than the second distance d2. For example, the second distance d2 can be 80%-95% of the first distance d1. It can be understood that the distance between the upper and lower air-drawing edges of the air outlet 211 is also the air outlet width of the air outlet 211 on the air-drawing housing 210 of the air-drawing component 200. The distance between the upper and lower air outlet edges of the fan outlet 221 is also the air outlet width of the induced draft fan 220. Setting the air outlet width of the induced draft component 200's induced draft housing 210 to be greater than or equal to the air outlet width of the induced draft fan 220 allows the indoor airflow generated by the induced draft fan 220 to be more effectively blown out from the induced draft housing 210's induced draft outlet 211. If the first distance d1 is less than the second distance d2, more airflow loss may occur during the process of the indoor airflow generated by the induced draft fan 220 being blown out from the induced draft housing 210's induced draft outlet 211.

[0061] In some alternative embodiments, an air duct grille is provided at the air outlet 211, wherein the downward tilt angle of the air duct grille is greater than or equal to the tilt angle of the fan outlet 221.

[0062] An air intake grille is installed at the air intake outlet 211. Based on the determined tilt angle of the fan outlet 221, the air intake grille can be used to adjust the outlet angle of the indoor air blown from the air intake outlet 211, thereby making the indoor air blown from the air intake outlet 211 more effectively directed towards indoor ventilation and heat exchange. Furthermore, setting the downward tilt angle of the air intake grille to be greater than or equal to the tilt angle of the fan outlet 221 allows for a larger outlet angle of the indoor air blown from the air intake outlet 211, which in turn allows for more effective mixing of indoor ventilation and heat exchange air, resulting in a more comfortable and uniform airflow to the user.

[0063] In some alternative embodiments, the lower heat exchange edge of the heat exchange outlet 111 is located at a first position of the heat exchange housing 110, and the air duct outlet 211 is located at a second position of the air duct housing 210, wherein the second position is located in front of the first position.

[0064] Combination Figure 2As shown, the lower heat exchange edge of the heat exchange outlet 111 is positioned at a first location on the heat exchange housing 110, and the induced draft outlet 211 is positioned at a second location on the induced draft housing 210, with the second location located in front of the first location, i.e., the induced draft outlet 211 is located in front of the lower heat exchange edge of the heat exchange outlet 111. This allows the indoor air blown out by the induced draft component 200 from the induced draft outlet 211 to be more effectively directed towards the indoor induced draft and heat exchange air, thereby improving the mixing degree of the indoor induced draft and heat exchange air, and thus making the uniform airflow directed to the user more comfortable.

[0065] In some optional embodiments, an air inlet 212 is provided on the lower side of the air inlet housing 210, and an air inlet 222 is provided on the air inlet 220 facing the air inlet 212. The distance between the front air inlet edge and the rear air inlet edge of the air inlet 212 is a third distance d3, and the distance between the front air inlet edge and the rear air inlet edge of the air inlet 222 is a fourth distance d4. The third distance d3 is less than or equal to the fourth distance d4.

[0066] Combination Figure 5 As shown, the distance between the front and rear air intake edges of the air intake 212 is defined as the third distance d3, and the distance between the front and rear air intake edges of the fan inlet 222 is defined as the fourth distance d4. The third distance d3 is less than or equal to the fourth distance d4, meaning the distance between the front and rear air intake edges of the air intake 212 is less than or equal to the distance between the front and rear air intake edges of the fan inlet 222. When the third distance d3 is less than the fourth distance d4, it can be understood that the third distance d3 is only slightly less than the fourth distance d4. For example, the third distance d3 can be 80%-95% of the fourth distance d4. It can be understood that the distance between the upper and lower air intake edges of the air intake 212 is also the air intake width of the air intake 212 on the air intake housing 210 of the air intake component 200. The distance between the upper and lower air inlet edges of the fan inlet 222 is the air inlet width of the induced draft fan 220. The air inlet width of the induced draft fan 210 on the induced draft housing 210 of the induced draft component 200 is greater than or equal to the air inlet width of the induced draft fan 220, which allows the induced draft fan 220 to more effectively introduce indoor air from the induced draft fan inlet 212 into the fan inlet 222.

[0067] In some embodiments, the indoor unit of the air conditioner further includes an air distribution controller. The air distribution controller is configured to adjust the rotational speed of the exhaust fan 220 and / or the tilt angle of the exhaust grille according to the indoor air volume.

[0068] An air distribution controller is installed in the indoor unit of the air conditioner to adjust the speed of the induced draft fan 220 and / or the tilt angle of the induced draft grille according to the indoor air volume. This allows for a more effective mixing of the indoor air blown out by the induced draft fan 220 with the indoor air introduced from the induced draft spacing d and the heat exchange air blown out from the heat exchange unit 100, resulting in a more comfortable airflow to the user.

[0069] Specifically, increasing the rotational speed of the induced draft fan 220 will also increase the volume of indoor induced draft air introduced from the induced draft spacing d, thereby increasing the mixing of heat exchange air and indoor induced draft air.

[0070] In some alternative embodiments, the induced draft fan 220 includes a centrifugal fan.

[0071] This disclosure also provides an air conditioner, including any of the aforementioned indoor air conditioner units.

[0072] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: The heat exchange body includes a heat exchange shell and a heat exchanger disposed within the heat exchange shell. The heat exchange shell is provided with a heat exchange air outlet for blowing out heat exchange air; and, An air-expelling component is disposed at the lower part of the heat exchange outlet. The air-expelling component includes an air-expelling housing and an air-expelling fan disposed within the air-expelling housing. An air-expelling gap is provided between the heat exchange housing and the air-expelling housing. The front side of the exhaust housing is provided with an exhaust outlet, and the exhaust fan outlet faces the exhaust outlet and is inclined downwards, so that the exhaust component introduces indoor air from the exhaust gap. The airflow from the heat exchange outlet of the heat exchange body, the indoor air blown from the exhaust outlet of the exhaust component, and the indoor air introduced from the exhaust gap between the heat exchange housing and the exhaust housing are mixed. The angle between the air outlet of the induced draft fan and the horizontal plane is greater than or equal to 5°.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The angle between the air outlet of the induced draft fan and the horizontal plane is less than or equal to 25°.

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The angle between the air outlet of the induced draft fan and the horizontal plane is greater than or equal to 10° and less than or equal to 20°.

4. The indoor unit of the air conditioner according to claim 3, characterized in that, The distance between the upper and lower edges of the air intake outlet is a first distance, and the distance between the upper and lower edges of the fan outlet is a second distance. Wherein, the first distance is greater than or equal to the second distance.

5. The indoor unit of the air conditioner according to claim 1, characterized in that, An air intake grille is provided at the air outlet. Wherein, the downward tilt angle of the air intake grille is greater than or equal to the tilt angle of the fan outlet.

6. The indoor unit of the air conditioner according to claim 1, characterized in that, The lower heat exchange edge of the heat exchange outlet is located at a first position on the heat exchange shell, and the exhaust outlet is located at a second position on the exhaust shell. The second position is located in front of the first position.

7. The air conditioning indoor unit according to any one of claims 1 to 6, characterized in that, The lower side of the induced draft housing is provided with an induced draft inlet, and the induced draft fan is provided with a fan inlet facing the induced draft inlet. Furthermore, the distance between the front and rear edges of the induced draft inlet is a third distance, and the distance between the front and rear edges of the fan inlet is a fourth distance. The third distance is less than or equal to the fourth distance.

8. The indoor unit of the air conditioner according to claim 7, characterized in that, The induced draft fan includes a centrifugal fan.

9. An air conditioner, characterized in that, Including the air conditioning indoor unit as described in any one of claims 1 to 8.

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