Air conditioner indoor unit and air conditioner

Abstract

This invention discloses an indoor air conditioning unit and an air conditioner. The indoor air conditioning unit includes a housing, a first baffle plate, and a driving device. The housing includes a front panel with an air outlet at its lower end. The first baffle plate is disposed at the air outlet and has multiple air diffusion holes through its surface. The driving device is installed inside the housing and includes a push rod disposed inside the housing. The inner end of the push rod is slidably connected to the housing, and the outer end of the push rod is rotatably connected to the first baffle plate. The reciprocating movement of the push rod drives the first baffle plate to move linearly to a first position away from the air outlet. At the first position, the first baffle plate deflects vertically relative to the push rod to change the air outlet direction. The indoor air conditioning unit of this invention can achieve windless air outlet, thereby improving the user's comfort when using the indoor air conditioning unit.

Description

[0001] This application is a divisional application of the patent application filed on August 21, 2017, with application number 201710726819.X and invention title "Air Conditioner Indoor Unit and Air Conditioner". Technical Field

[0002] This invention relates to the field of air conditioner technology, and particularly to an indoor air conditioner unit and an air conditioner. Background Technology

[0003] When a user turns on the air conditioning in cooling mode, the cold air coming out of the air outlet of a conventional air conditioner has a relatively high air velocity. The cold air blows directly onto the user from the air outlet, which can easily cause the user to suffer from air conditioning-related symptoms such as dizziness, nasal congestion, or fatigue. Summary of the Invention

[0004] The main objective of this invention is to provide an air conditioner indoor unit that achieves windless airflow, thereby improving user comfort when using the air conditioner indoor unit.

[0005] To achieve the above objectives, the present invention provides an indoor air conditioning unit and an air conditioner including the indoor air conditioning unit. The indoor air conditioning unit includes a housing, a first baffle plate, and a driving device. The housing includes a front shell with an air outlet at its lower end. The first baffle plate is disposed at the air outlet and has multiple air dissipation holes through its surface. The driving device is installed inside the housing and includes a push rod disposed inside the housing. The inner end of the push rod is slidably connected to the housing, and the outer end of the push rod is rotatably connected to the first baffle plate. The reciprocating movement of the push rod drives the first baffle plate to move linearly to a first position away from the air outlet. At the first position, the first baffle plate deflects up and down relative to the push rod to change the air outlet direction.

[0006] Preferably, the outer end of the push rod is provided with a mounting base, a second motor is installed in the mounting base, the inner surface of the first wind deflector is provided with a lug, and the drive shaft of the second motor is connected to the lug to drive the first wind deflector to deflect up and down.

[0007] Preferably, when the indoor unit of the air conditioner is heating, the first baffle is driven upward by the second motor at the first position, so that the first baffle and the portion of the housing above the air outlet stop each other to send air downward.

[0008] Preferably, the first wind deflector is formed as an arc-shaped plate. When the indoor unit of the air conditioner is cooling, the second motor drives the first wind deflector to deflect downward at the first position, so that the first wind deflector is placed as a downward-protruding arc-shaped plate, and the first wind deflector diverts the airflow.

[0009] Preferably, the housing includes a lower volute, and the indoor unit of the air conditioner is provided with a second baffle plate on the inner side of the lower volute, the second baffle plate being rotatably connected to the lower volute.

[0010] Preferably, the inner side of the lower volute is provided with a receiving groove for receiving the second wind baffle.

[0011] Preferably, the second wind deflector has a plurality of air dissipation holes through its surface.

[0012] Preferably, the ventilation holes are arranged in a curved direction.

[0013] Preferably, the outer end of the air diffuser hole is arranged in an arc-shaped flare from the inside to the outside.

[0014] Preferably, the center-to-center distance between two adjacent ventilation holes is 5mm to 10mm.

[0015] Preferably, the diameter of the air diffuser hole is 2mm to 5mm.

[0016] The technical solution of the present invention involves providing multiple air diffusers through the surface of the first wind deflector and placing the first wind deflector at the air outlet. A driving device is used to drive the first wind deflector to move away from or closer to the air outlet. When the indoor unit of the air conditioner is working, the airflow blown out by the indoor unit of the air conditioner is blown out through the air diffusers on the first wind deflector. The airflow speed is reduced and the airflow is dispersed and becomes softer, so that the user cannot feel the wind. This achieves the effect of windless airflow from the indoor unit of the air conditioner, thereby improving the comfort of using the indoor unit of the air conditioner. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the first embodiment of the air conditioner indoor unit of the present invention; Figure 2 for Figure 1 A cross-sectional view of the indoor unit of a central air conditioner; Figure 3 for Figure 1 A schematic diagram of the structure of an indoor unit of a central air conditioner with the first air deflector in the open position; Figure 4 for Figure 3 A cross-sectional view of the indoor unit of a central air conditioner; Figure 5 for Figure 1 A schematic diagram of the structure of the first air deflector of the indoor unit of a central air conditioner in an upward deflected state; Figure 6 for Figure 5 A cross-sectional view of the indoor unit of a central air conditioner; Figure 7 for Figure 1 A schematic diagram of the structure of the first air deflector of the indoor unit of a central air conditioner in a downward deflected state; Figure 8 for Figure 7 A cross-sectional view of the indoor unit of a central air conditioner; Figure 9 This is a cross-sectional schematic diagram of the second embodiment of the indoor unit of the air conditioner of the present invention; Figure 10 for Figure 9 A cross-sectional view of the indoor unit of a central air conditioner with both the first and second air deflectors in the open position; Figure 11 for Figure 10 A cross-sectional view of the second wind deflector in an upward-deflected state; Figure 12 for Figure 10 A cross-sectional view of the second wind deflector in a downward deflected state; Figure 13 for Figure 10 A partial structural diagram of the second wind deflector; Figure 14 for Figure 10 Another partial structural diagram of the second wind deflector.

[0019] Explanation of icon numbers

[0020] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of the present invention involve descriptions such as "outdoor side" and "indoor side," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "outdoor side" or "indoor side" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0024] The present invention provides an indoor air conditioning unit and an air conditioner including the indoor air conditioning unit, wherein the indoor air conditioning unit can achieve windless airflow to improve the user's comfort when using the indoor air conditioning unit.

[0025] Please see Figure 1 and Figure 2 In a first embodiment of the air conditioner indoor unit of the present invention, the air conditioner indoor unit includes a housing 100, a first wind deflector 10, and a driving device; wherein, the housing 100 includes a face shell 110, and the lower end of the face shell 110 has an air outlet 112; the first wind deflector 10 is disposed at the air outlet 112, and the first wind deflector 10 has a plurality of air dispersing holes 3 through its surface; the driving device connects the housing 100 and the first wind deflector 10 to drive the first wind deflector 10 to move away from or closer to the air outlet 112.

[0026] The housing 100 includes a rear housing, which together with the front housing 110 forms a cavity for the installation of the heat exchanger 1 and the air duct assembly 2. The top of the front housing 110 has an air inlet 111. When the indoor unit of the air conditioner is working, the airflow in the room enters through the air inlet 111, is heated by the heat exchanger 1, and is then guided by the air duct assembly 2 to the air outlet 112 for discharge.

[0027] The first wind deflector 10 is disposed at the air outlet 112, and the first wind deflector 10 is driven by the driving device to move away from or closer to the air outlet 112. That is, the first wind deflector 10 is driven by the driving device to move in a straight line along the air outlet 112 to move away from the air outlet 112, or to move in a straight line in the opposite direction to the air outlet 112 to move closer to the air outlet 112.

[0028] Please see Figure 3 and Figure 4 When the indoor unit of the air conditioner is working, the driving device drives the first baffle plate 10 away from the air outlet 112. The first baffle plate 10 is opposite to the air outlet 112. The airflow blown out from the air duct assembly 2 forms three airflows at the air outlet 112. The first airflow (as shown in Figure I) is blown out from the air diffuser 3 on the first baffle plate 10. The wind speed of the first airflow is reduced and it is dispersed and becomes soft, so that the user cannot feel the wind, thus achieving the effect of windless airflow from the indoor unit of the air conditioner. The second airflow (as shown in Figure II) is blown out directly from the lower gap between the lower edge of the air outlet 112 and the lower edge of the first baffle plate 10. Since the lower gap faces the wall where the indoor unit of the air conditioner is mounted, the second airflow will not blow towards the user. The third airflow (as shown in Figure III) is blown out from the upper gap between the upper edge of the air outlet 112 and the upper edge of the first baffle plate 10. Since the upper gap faces the top of the wall, the third airflow will also not blow directly towards the user. When the indoor unit of the air conditioner is working, the driving device drives the first baffle plate 10 to approach the air outlet 112, and the first baffle plate 10 covers the air outlet 112.

[0029] The shape and arrangement of the air diffuser holes 3 are not specifically limited, but it is worth noting that the multiple air diffuser holes 3 should be arranged relatively evenly on the surface of the first wind baffle 10 to ensure that the air diffuser 10 diffuses the air relatively evenly and avoid situations such as no wind in some areas or excessive wind speed in some areas.

[0030] The driving device can be a slide bar mechanism or a push rod mechanism, as long as it can drive the first baffle 10 to move linearly away from or towards the air outlet 112. Details will be provided later.

[0031] The technical solution of the present invention involves providing a plurality of air diffuser holes 3 through the surface of the first wind deflector 10 and placing the first wind deflector 10 at the air outlet 112. The first wind deflector 10 is driven by the driving device to move away from or closer to the air outlet 112. When the indoor unit of the air conditioner is working, the airflow blown out by the indoor unit of the air conditioner is blown out through the air diffuser holes 3 on the first wind deflector 10. The airflow speed is reduced and the airflow is dispersed and becomes soft, so that the user cannot feel the wind, achieving a windless airflow effect of the indoor unit of the air conditioner, thereby improving the comfort of using the indoor unit of the air conditioner.

[0032] Please see Figure 3The drive device has various structures. In this embodiment, the drive device includes a push rod 30 located inside the housing 100, a first motor, and a gear connected to the first motor. The inner end of the push rod 30 is slidably connected to the housing 100, and the outer end of the push rod is connected to the first wind deflector 10. The push rod 30 is provided with a rack that meshes with the gear.

[0033] Specifically, the housing 100 is provided with a collar or slide rail. The inner end of the push rod 30 is slidably connected to the housing 100 through the collar or slide rail. To prevent the push rod 30 from slipping off the collar, the inner end of the push rod 30 and the collar are provided with a matching anti-slip structure, such as an anti-slip buckle or an anti-slip self-locking spring. The rack is located in the middle of the push rod 30. The rack meshes with the gear so that the push rod 30 is driven to slide back and forth by the first motor, thereby causing the first wind deflector 10 to move away from or closer to the air outlet 112.

[0034] Of course, the drive device is not limited to this structure. In other embodiments, the drive device may also have a return spring at the inner end of the push rod 30, with one end of the return spring connected to the inner end of the push rod 30 and the other end connected to the housing 100, so as to use the elasticity of the return spring to assist the push rod 30 in reciprocating motion, thereby reducing the energy consumption of the first motor.

[0035] Please see Figure 5 and Figure 6 In this embodiment, in order to change the air outlet direction of the air outlet 112 by changing the tilt angle of the first baffle plate 10, the first baffle plate 10 is rotatably connected to the outer end of the push rod 30. There are various ways to make this rotatable connection. For example, the first baffle plate 10 is hinged to the outer end of the push rod 30. When the first baffle plate 10 moves away from the air outlet 112, the first baffle plate 10 deflects around the outer end of the push rod 30 under its own weight. This can change the size of the upper or lower gap between the air outlet 112 and the first baffle plate 10, thereby changing the air outlet direction of the air outlet 112.

[0036] Please see Figure 7 and Figure 8 Considering the uncertainty of the first baffle plate 10 deflecting around the outer end of the push rod 30 due to its own weight, it is preferable to use a motor to control the deflection of the first baffle plate 10. Therefore, in this embodiment, the outer end of the push rod 30 is provided with a mounting base 40, the indoor unit of the air conditioner is mounted on the mounting base 40 with a second motor, and the inner plate surface of the first baffle plate 10 is provided with a lug 11, which is connected to the drive shaft of the second motor.

[0037] Specifically, the mounting base 40 has a cavity, in which the second motor is installed. The lug 11 is provided with a rotating shaft that extends into the cavity and connects to the drive shaft of the second motor. This allows the second motor to drive the first baffle 10 to deflect, effectively controlling the airflow direction of the air outlet 112. Obviously, in other embodiments, a shaft hole can also be provided on the lug 11, and the drive shaft of the second motor can be directly installed in the shaft hole.

[0038] When the indoor unit of the air conditioner is heating, such as Figure 6 As shown, the second motor drives the first baffle plate 10 to deflect upwards, and the airflow from the indoor unit of the air conditioner forms two airflows at the air outlet 112. The first airflow is greater than the second airflow, and the first airflow blows directly downwards to the bottom of the room, which has a warming effect on the feet and its heating effect is better.

[0039] When the indoor unit of the air conditioner is cooling, such as Figure 8 As shown, the second motor drives the first baffle plate 10 to deflect downwards, and the airflow from the indoor unit of the air conditioner forms two airflows at the air outlet 112. The first airflow flows towards the inner surface of the first baffle plate 10, and part of the first airflow blows upwards and then naturally settles, which has a better cooling effect and avoids blowing directly on the user. The other part of the first airflow diffuses downwards through the air diffuser holes 3 on the first baffle plate 10. This part of the first airflow crosses and mixes with the second airflow located on the outer surface of the first baffle plate 10, thereby dispersing the second airflow and making it softer, so that the indoor unit of the air conditioner has a better windless airflow effect.

[0040] Please see Figure 9 In the second embodiment of the present invention, the difference from the first embodiment is that the housing 100 includes a lower volute 120, and the indoor unit of the air conditioner is provided with a second wind deflector 20 on the inner side of the lower volute 120. The second wind deflector 20 is rotatably connected to the lower volute 120 so as to reduce the airflow blown out from the gap at the lower edge of the air outlet 112 by using the second wind deflector 20, thereby achieving a better windless effect.

[0041] Specifically, the second wind deflector 20 has a rotating shaft at both ends, the lower volute 120 is provided with a shaft hole for the rotating shaft to be inserted, and the lower volute 120 is provided with a third motor, which is connected to the rotating shaft to drive the second wind deflector 20 to rotate.

[0042] Please see Figure 10 When the first wind deflector 10 is opened, the second wind deflector 20 flips outward, and the airflow in the part of the second wind deflector 20 flows downward, thereby reducing the wind feel of the airflow blowing out from the gap at the lower edge of the air outlet 112.

[0043] Please see Figure 11When the first wind deflector 10 flips upwards, the second wind deflector 20 flips outwards by 180°. The first wind deflector 10 and the second wind deflector 20 enclose and extend the air supply duct of the air outlet 112, extending the air supply distance of the air outlet, which is conducive to delivering warmth to the bottom floor of the room to achieve the effect of warming the feet.

[0044] Please see Figure 11 When the first baffle plate 10 flips downwards, the second baffle plate 20 flips outwards by 180°. The first baffle plate 10 and the second baffle plate 20 enclose and extend the air supply duct of the air outlet 112, thus extending the air supply distance of the air outlet, which is conducive to achieving rapid cooling in the initial stage of cooling.

[0045] Please see Figure 12 In this embodiment, while ensuring that the air conditioner emits no draft, its air dispersion range and effect are improved. The second baffle plate 20 has multiple air dispersion holes 3 through its surface. Part of the airflow from the indoor unit of the air conditioner diffuses downward through the air dispersion holes 3 on the second baffle plate 20, reducing the airflow velocity and thus achieving a draft-free effect.

[0046] Please refer to it again. Figure 12 In this embodiment, in order to reduce the space occupied by the second wind deflector 20 in the air duct, a receiving groove for receiving the second wind deflector 20 is provided on the inner side of the lower volute 120 so that the second wind deflector 20 can be received into the receiving groove when it is not needed.

[0047] Please also see Figure 12 In this embodiment, to increase the windless airflow range of the indoor unit of the air conditioner, the inner surface of the first baffle plate 10 is arranged in a concave arc shape. This allows the airflow to diffuse laterally along the inner surface of the first baffle plate 10, and also allows the airflow to diffuse outwards in a hemispherical shape from the air dissipation holes 3 on the first baffle plate 10. Therefore, by arranging the inner surface of the first baffle plate 10 in a concave arc shape, the windless airflow range of the indoor unit of the air conditioner can be effectively increased.

[0048] Please see Figure 13 Considering that if the air diffuser 3 is a straight cylinder extending through the first baffle plate 10, when the indoor unit of the air conditioner is cooling, the airflow will blow directly to the outside after passing through the air diffuser 3, and the airflow will not pass through the outer surface of the first baffle plate 10, resulting in a large temperature difference between the inner side and the outer side of the first baffle plate 10, and the water vapor in the air will easily condense into condensate on the outer surface of the first baffle plate 10.

[0049] Therefore, in this embodiment, to avoid the above situation, the outer end of the air diffuser 3 is set in an arc-shaped flare from the inside to the outside. When the airflow blows out from the air diffuser 3 on the inner plate surface of the first baffle plate 10, the airflow diffuses smoothly outward from the flared end of the air diffuser 3 to the outer plate surface of the first baffle plate 10, thereby balancing the temperature difference between the inner and outer sides of the first baffle plate 10, and thus avoiding the formation of condensate on the outer plate surface of the first baffle plate 10.

[0050] Please see Figure 14 In other embodiments, to achieve a better windless effect, the ventilation hole 3 is curved in its direction of penetration, so that the ventilation hole 3 is curved in its penetration of the first baffle plate 10 or the second baffle plate 20. Compared with the straight cylindrical ventilation hole 3, in this embodiment, the curved ventilation hole 3 has a larger wind resistance, which more effectively reduces the airflow speed at the air outlet 112, thereby achieving a better windless effect.

[0051] Please see Figure 14 In this embodiment, considering that the distance between two adjacent air diffusers 3 should not be too large, otherwise condensation may still occur on the outer surface of the first baffle plate 10, the center distance between two adjacent air diffusers 3 is limited to 5mm~10mm.

[0052] If the center distance between two adjacent air diffusers 3 is less than 5mm, the first baffle plate 10 will be weak and prone to deformation due to the excessive density of the air diffusers 3. If the center distance between two adjacent air diffusers 3 is greater than 10mm, the air diffusers 3 will be too sparse, resulting in poor air dispersion and anti-condensation effects. Therefore, the center distance between two adjacent air diffusers 3 is limited to 5mm~10mm, specifically 6.5mm, 8.5mm, or 9.5mm.

[0053] Please also see Figure 4 To ensure the first baffle has a good air dispersion effect, the diameter of the air dispersion hole 3 is 2mm to 5mm, such as 2.5mm, 3.5mm or 4.5mm. If the diameter of the air dispersion hole 3 is less than 2mm, the air resistance will be large due to the small size of the air dispersion hole 3, and the airflow will have difficulty diffusing through the air dispersion hole 3; if the diameter of the air dispersion hole 3 is greater than 5mm, the air resistance will be small due to the large size of the air dispersion hole 3, and the airflow will still have a large wind speed after passing through the air dispersion hole 3, which is not conducive to achieving windless airflow from the indoor unit of the air conditioner.

[0054] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An air conditioner indoor unit characterized by comprising: include: The housing includes a face shell, the lower end of which has an air outlet; A first wind deflector is provided at the air outlet, and the first wind deflector has a plurality of air dispersing holes through its surface; as well as A drive device is installed inside the housing. The drive device includes a push rod disposed inside the housing. The inner end of the push rod is slidably connected to the housing, and the outer end of the push rod is rotatably connected to the first wind deflector. The push rod reciprocates and drives the first wind deflector to move linearly to a first position away from the air outlet. At the first position, the first wind deflector deflects up and down relative to the push rod to change the air outlet direction.

2. The air conditioning indoor unit as claimed in claim 1, wherein, The outer end of the push rod is provided with a mounting base, and a second motor is installed in the mounting base. The inner surface of the first wind deflector is provided with a lug, and the drive shaft of the second motor is connected to the lug to drive the first wind deflector to deflect up and down.

3. The air conditioning indoor unit as claimed in claim 2, wherein When the indoor unit of the air conditioner is heating, the second motor drives the first baffle plate to deflect upward at the first position, so that the first baffle plate abuts against the portion of the housing above the air outlet to send air downward.

4. The air conditioning indoor unit as claimed in claim 2, wherein The first wind deflector is formed as an arc-shaped plate. When the indoor unit of the air conditioner is cooling, the second motor drives the first wind deflector to deflect downward at the first position, so that the first wind deflector is placed as a downward convex arc-shaped plate, and the first wind deflector diverts the airflow.

5. The air conditioning indoor unit as claimed in claim 1, wherein The housing includes a lower volute, and the indoor unit of the air conditioner has a second baffle plate on the inner side of the lower volute, the second baffle plate being rotatably connected to the lower volute. 6.The indoor unit of the air conditioner of claim 5, wherein, The inner side of the lower volute is provided with a receiving groove for accommodating the second wind baffle.

7. The air conditioning indoor unit as claimed in claim 5, wherein The second wind deflector has multiple air dissipation holes through its surface.

8. The air conditioning indoor unit according to any one of claims 1 to 7, characterized by, The ventilation holes are arranged in a curved direction.

9. The air conditioner indoor unit according to any one of claims 1 to 7, characterized by The outer end of the air diffuser hole is set in an arc-shaped flare from the inside to the outside. 10.The indoor unit of the air conditioner of claim 9, wherein, The center-to-center distance between two adjacent ventilation holes is 5mm to 10mm. 11.The indoor unit of the air conditioner of claim 9, wherein, The diameter of the air diffuser hole is 2mm~5mm.

12. An air conditioner characterized by comprising: Including the air conditioning indoor unit as described in any one of claims 1 to 11.

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