Air conditioner indoor unit and air conditioner

Abstract

The present invention provides an air conditioner indoor unit and an air conditioner, wherein the air conditioner indoor unit comprises a shell, an air outlet is arranged at the upper part of the shell, an air inlet is arranged at the bottom of the shell, a first wind wheel is arranged between the air inlet and the air outlet, and a rotatable air outlet channel is arranged between the first wind wheel and the air outlet. The air conditioner indoor unit of the present invention takes in air from the bottom and discharges air from the upper part, and adjusts the air outlet angle through the air outlet channel, effectively increasing the conveying distance of the outlet air flow, expanding the reflux circle of the air flow, and improving the heat exchange effect of the air conditioner.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air conditioning indoor unit and an air conditioner. Background Art

[0002] With the development of social economy, users have higher and higher requirements for living environment. Among them, ambient temperature is an environmental condition that users can quickly perceive, and it has become one of the environmental parameters that users focus on. How to better meet users' comfort requirements in temperature control is one of the issues that many air conditioner manufacturers always need to think about.

[0003] Traditional indoor units usually have an air inlet at the top and an air outlet at the bottom; and due to the limitation of the air outlet angle, it is usually difficult to cover the entire indoor area, resulting in uneven indoor temperature and poor user experience; at the same time, the cold cannot be redistributed and the filter covering the air inlet is prone to dust accumulation and difficult to replace. To this end, the applicant has conducted a lot of research, such as the Chinese patent application No. 201921254505.5, which discloses an indoor unit that can achieve multiple air outlet modes, including a shell, an upper air outlet at the top and a lower air outlet at the bottom of the shell, a first air guide plate at the upper air outlet, a second air guide plate at the lower air outlet, and a first fan blade near the upper air outlet and a second fan blade near the lower air outlet in the shell; the indoor unit can switch between multiple air outlet modes by controlling the air guide plate and the fan blade. However, the structure is complex, occupies a large space, and has poor feasibility.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The problem solved by the present invention is how to achieve rapid and uniform temperature adjustment in the entire room during the heating process to improve comfort.

[0006] In order to solve the above problems, the present invention provides an air conditioner indoor unit, comprising a shell, an air outlet is arranged at the upper part of the shell, an air inlet is arranged at the bottom of the shell, a first wind wheel is arranged between the air inlet and the air outlet, and a rotatable air outlet channel is arranged between the first wind wheel and the air outlet. This arrangement effectively increases the conveying distance of the outlet air flow and expands the reflux circle of the air flow through the upper air outlet, thereby achieving a bathing-style heating effect; at the same time, the air outlet angle is adjusted in real time according to needs, so as to achieve air supply effects such as "wind follows people" or "wind avoids people", thereby improving the comfort of users.

[0007] Preferably, a rotatable second air guide plate is provided on one side of the air inlet, and the second air guide plate can selectively close the air inlet. This arrangement has a simple structure and a beautiful appearance, and meets the requirements of thinness and lightness of the air conditioner. The second air guide plate can be used to adjust the air inlet direction, while avoiding the disadvantage of the traditional air inlet located at the top being easy to accumulate dust, thereby improving the air supply quality.

[0008] Preferably, the housing includes a lower wall plate and a front panel connected to each other, the air inlet is arranged on the lower wall plate, and a rotatable second air guide plate is arranged on the side of the air inlet close to the front panel, and the second air guide plate can selectively close the air inlet. When the second air guide plate is opened, the outlet airflow needs to go around the second air guide plate downward before entering the air inlet, effectively preventing the airflow blown out of the air outlet from directly and quickly approaching the air inlet and being sucked into the air inlet, so as to solve the problem of a small recirculation loop of the outlet airflow and improve the comfort of indoor air conditioning.

[0009] Preferably, the housing includes a connected lower wall plate and a front panel, the air outlet is arranged at the upper part of the front panel, and a first air guide plate is arranged at the upper end of the air outlet, and the first air guide plate rotates along the upper edge of the front panel. This arrangement can promote the downward pressure of hot air and increase the diffusion range of hot air in the room through the blocking and drainage effect of the first air guide plate; at the same time, it is convenient for the air flow to be discharged in the downward and forward direction, avoiding the hot air from rising quickly and not falling to the ground, thereby improving the comfort during heating.

[0010] Preferably, the housing further comprises an upper top plate, the upper top plate being connected to the upper end of the front panel, and the air outlet passage can rotate toward the position of the air outlet at the end away from the upper top plate. This setting adjusts the inclination angle of the air outlet passage by rotation to control the air outlet direction, meeting the diversified needs of users; at the same time, the air outlet passage can be rotated and retracted to the interior of the indoor unit when the air conditioner is turned off, meeting the requirements of thinness and lightness of the air conditioner.

[0011] Preferably, the rotation angles of the first air guide plate, the second air guide plate, and the air outlet channel are α, β, and γ, respectively, wherein the value of α is 0-90°, the value of β is 0-135°, and the value of γ is 0-90°. This setting can meet the design requirements of the air conditioner to be lightweight and thin; at the same time, a large hot air recirculation circle is formed to improve the heating effect of the air conditioner.

[0012] Preferably, a second wind wheel is arranged at the outlet end of the air outlet channel, and the plane where the second wind wheel is located is perpendicular to the air outlet channel. This arrangement can redistribute the heat / cold carried by the airflow, increase the air supply distance, make the hot air or cold air cover the entire indoor space, and improve the heat exchange effect.

[0013] Preferably, a temperature sensor is provided at the inlet end of the air outlet channel, and a sensing probe is provided at the outlet end of the air outlet channel, and the sensing probe is located on the side of the second wind wheel close to the air outlet. The sensing probe can detect and identify the user's position in real time, and adjust the inclination angle of the air outlet channel to achieve the function of "wind follows the person" or "wind avoids the person".

[0014] Preferably, the air conditioner indoor unit further comprises a filter, which is detachably covered above the air inlet. This arrangement can prevent fingers from accidentally reaching into the indoor unit and causing danger, while shielding the internal structure of the indoor unit to prevent dust accumulation in the air conditioner, thereby improving the aesthetics and air quality of the air conditioner.

[0015] Compared with the prior art, the air-conditioning indoor unit described in the present invention has the following beneficial effects: (1) The air-conditioning indoor unit described in the present invention can take in air from the bottom and discharge air from the top, and the air outlet angle can be adjusted through the air outlet channel, thereby effectively increasing the conveying distance of the outlet air flow and expanding the air flow recirculation circle; (2) The air-conditioning indoor unit described in the present invention is provided with a rotatable first air guide plate and a second air guide plate, which can selectively block the air outlet and the air inlet to improve the aesthetics; at the same time, further expand the air flow recirculation circle and improve the air conditioning heating performance; (3) The air-conditioning indoor unit described in the present invention performs secondary distribution of the outlet air flow through the cooperation of the second wind wheel and the first air guide plate, and has a simple structure and good heating effect.

[0016] The present invention also provides an air conditioner, comprising the above-mentioned air conditioner indoor unit. The air conditioner has the same beneficial effects as the above-mentioned air conditioner indoor unit, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the air conditioner indoor unit of the present invention;

[0018] Figure 2 It is a structural schematic diagram of the air conditioner indoor unit of the present invention in an open state;

[0019] Figure 3 It is a schematic diagram of the structure of the indoor unit of the air conditioner in the closed state according to the present invention;

[0020] Figure 4 A schematic diagram comparing the air flow directions of the air conditioner indoor unit of the present invention and the conventional air conditioner;

[0021] Figure 5 Schematic diagram comparing the heating effects of the air-conditioning indoor unit of the present invention and a traditional air-conditioner.

[0022] Description of reference numerals:

[0023] 1-shell; 11-upper top plate; 12-rear wall plate; 13-lower wall plate; 14-front panel; 101-air inlet; 102-air outlet; 103-first air guide plate; 104-second air guide plate; 105-air outlet channel; 2-heat exchanger; 3-first wind wheel; 4-second wind wheel; 5-air inlet grille; 6-filter; 7-temperature sensor; 8-sensing probe; 9-inlet airflow; 10-outlet airflow. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, in the present invention, the descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0027] The indoor unit in the prior art has an air inlet at the top and an air outlet at the bottom, and the air conditioner is usually installed at a higher position; the filter 6 arranged above the air inlet is prone to dust accumulation, which affects the air supply efficiency of the air conditioner and is difficult to clean and replace; in addition, the fan in the air conditioner is usually used for rapid heat exchange of the air flow passing through the heat exchanger, but it is impossible to achieve secondary distribution of cold / heat.

[0028] When heating, the hot air blown downward quickly floats upward due to its lower density than the indoor air, and is finally sucked in again by the upper air inlet, causing the indoor heat exchange cycle to take place above the room and then slowly move downward. At the same time, due to the position of the air outlet, the downward air outlet angle is usually small (usually ≤45°), and the blowing distance is also short, usually only covering 1 / 3 of the room. If the room is not well sealed or the air conditioner's heating power is limited or the indoor area is large, the air conditioner's heating effect is difficult to achieve the expected effect.

[0029] To this end, the applicant proposed the following technical solution: Figure 1-3As shown, an air conditioner indoor unit includes a housing 1, a first wind wheel 3 is arranged in the housing 1, and a heat exchanger 2 is arranged on the periphery of the first wind wheel 3; the heat exchanger 2 is half-covered on the upper side or the lower side of the first wind wheel 3. Preferably, the first wind wheel 3 is a cross-flow wind wheel, which can achieve smoother air intake or air outlet when the air duct is short. Preferably, an air outlet 102 is arranged at the upper part of the housing 1, an air inlet 101 is arranged at the bottom, a first wind wheel 3 is arranged between the air inlet 101 and the air outlet 102, and a rotatable air outlet channel 105 is arranged between the first wind wheel 3 and the air outlet 102. This setting effectively increases the conveying distance of the air flow and expands the reflux circle of the air flow through the upper air outlet, thereby achieving a bathing-type heating effect; at the same time, the air outlet angle is adjusted in real time according to needs, so as to facilitate the realization of air supply effects such as "wind follows people" or "wind avoids people", thereby improving the comfort of users. For example, the distance to the opposite wall can be calculated or measured by sensing equipment based on the outlet pressure, and the outlet angle can be adjusted based on the distance, so as to evenly cover the entire space. The outlet channel 105 can be a flat plate or a curved plate for adjusting the outlet direction; the outlet channel 105 can also be a cavity that simultaneously limits and adjusts the outlet direction on both the upper and lower sides, and the cavity includes an upper side plate and a lower side plate, and the upper side plate and the lower side plate are parallel to each other or form a "trumpet shape" to gradually expand or contract outward.

[0030] The rotation angle β of the air outlet channel 105 is 0-135°. That is to say: the air outlet channel 105 can rotate a certain angle toward the position of the air outlet 102 to adjust the flow direction of the air outlet airflow 10 when in operation; the inclination angle of the air outlet channel 105 is adjusted by rotation to control the air outlet direction to meet the diversified needs of users. The air outlet channel 105 can rotate in the opposite direction and shrink to the inside of the indoor unit when it stops running, meeting the thinness and lightness requirements of the air conditioner. Preferably, a second wind wheel 4 is also provided at the outlet end of the air outlet channel 105, and the plane where the second wind wheel 4 is located is arranged perpendicular to the air outlet channel 105. This setting can perform secondary distribution of the heat / coldness carried by the air flow, increase the air supply distance, make the hot air or cold air cover the entire indoor space, and improve the heat exchange effect. Preferably, there are multiple second wind wheels 4, which are arranged at equal intervals at the outlet end of the air outlet channel 105. As an example of the present invention, a sensing probe 8 is arranged on the air outlet channel 105 and / or the first air guide plate 103 for detecting and identifying users. For example, the user's movement is tracked by infrared sensing or imaging to control the inclination angle of the air outlet channel 105, so as to realize the function of "wind follows people" or "wind avoids people". Preferably, a temperature sensor 7 is provided at the inlet end of the air outlet channel 105, and a sensing probe 8 is provided at the outlet end of the air outlet channel 105, and the sensing probe 8 is located on the side of the second wind wheel 4 close to the air outlet 102. The temperature sensor 7 detects whether the air flow temperature in the air outlet channel 105 reaches the preset value, and then controls whether the second wind wheel 4 is started and the rotation speed; when heating, when the temperature in the air outlet channel 105 meets the air supply condition, the rotation speed of the second wind wheel 4 is determined according to the difference between the set temperature and the indoor ambient temperature. For example, if the set temperature is much higher than the indoor ambient temperature, the rotation speed of the second wind wheel 4 is increased to quickly heat up. Preferably, a plurality of swing blades are provided in the air outlet channel 105, and the swing blades are located outside the second wind wheel 4 and can rotate relative to the air outlet channel 105 to adjust the air outlet angle of the air outlet 102 to increase the coverage area of ​​the cold air or hot air.

[0031] As an example of the present invention, the housing 1 includes an upper top plate 11, a rear wall plate 12, a lower wall plate 13, and a front panel 14 connected in sequence, and the rear wall plate 12 is connected to the wall. Preferably, an air outlet 102 is arranged on the upper part of the front panel 14, and a rotatable first air guide plate 103 is arranged at the air outlet 102, and the first air guide plate 103 can selectively close the air outlet 102. Preferably, a first air guide plate 103 is arranged at the upper end of the air outlet 102, and the first air guide plate 103 rotates along the upper edge of the front panel 14. This arrangement facilitates the outlet air flow 10 to discharge air downward and forward, avoids the hot air from rising rapidly and causing the hot air to not fall to the ground, and improves the comfort of the air conditioner during heating; at the same time, the outlet air flow 10 can be guided to achieve fine-tuning of the outlet direction, which is conducive to settling hot air to increase the diffusion range of hot air in the room. The rotation angle α of the first air guide plate 103 is 0-90°. This arrangement allows the first air guide plate 103 to fit onto the outer side of the air outlet 102 after the air conditioner is turned off, making the air conditioner thin and beautiful. During operation, the first air guide plate 103 can rotate along the upper edge of the front panel 14 by a certain angle to achieve the function of blocking and guiding air, thereby promoting the downward pressure of hot air and quickly dispersing the hot air into the room.

[0032] As another example of the present invention, an air inlet 101 is arranged on the lower wall plate 13, and a rotatable second air guide plate 104 is arranged on the side of the air inlet 101 close to the front panel 14, and the second air guide plate 104 can selectively close the air inlet 101. When the second air guide plate 104 is opened, the outlet airflow needs to go around the second air guide plate 104 downward before entering the air inlet 101, effectively preventing the airflow blown out of the air outlet 102 from directly and quickly approaching the air inlet 101 and being sucked in, so as to solve the problem of the small recirculation loop of the outlet airflow 10 and improve the comfort of indoor air conditioning; at the same time, the air inlet 101 and the air outlet 102 are closed to prevent dust from entering, and to avoid danger caused by accidentally inserting fingers, and the appearance is light and beautiful. Preferably, the lower wall plate 13 is provided with a second air guide plate 104 at one end close to the front panel 14, and the second air guide plate 104 extends along the length direction of the front panel 14. The rotation angle β of the second air guide plate 104 20-135°. This setting allows the cold air in the lower position to enter the air inlet 101, expand the recirculation circle of the airflow, and exchange heat with the indoor air more fully. Preferably, the indoor unit is also provided with a filter 6, and the filter 6 can cover the air inlet 101. This setting can filter the incoming air flow 9 to prevent larger foreign objects from entering the indoor unit to affect its operating stability; at the same time, the filter 6 arranged at the bottom of the indoor unit is not easy to accumulate dust, and the user experience is good. As an example of the present invention, the lower wall plate 13 is provided with an air inlet grille 5, and the air inlet grille 5 is located on one side of the air inlet 101; as an example of the present invention, the front panel 14 is provided with a notch on one side close to the lower wall plate 13, and the filter 6 can be quickly inserted or withdrawn through the notch to cover the lower wall plate 13, which is convenient for disassembly and cleaning of the filter 6. As another example of the present invention, the notch can be provided at the left and right ends of the indoor unit. Preferably, a stop block is provided at one end of the filter 6, and the stop block can be limitedly assembled in the notch. This arrangement can block the gap and limit the installation position of the filter 6, making it easy to disassemble and assemble and having a beautiful appearance. Figure 4 , Figure 5 As shown, during heating operation, the first air guide plate 103 and the second air guide plate 104 of the indoor unit are opened, and the user position is detected by the sensing probe 8, and the temperature sensor 7 detects whether the temperature in the air outlet duct 105 reaches the preset value; when the temperature reaches the preset value, the first wind wheel 3 is operated to allow the incoming air flow 9 to enter from the lower air inlet 101, and after heat exchange through the heat exchanger 2, the outgoing air flow 10 flows out from the upper air outlet 102, and after the air volume and angle of the outgoing air flow 10 are adjusted by the second wind wheel 4, the first air guide plate 103 is used to press the hot air flow downward to improve the heating effect.

[0033] The present invention further provides an air conditioner, the air conditioner comprising the air conditioner indoor unit and the outdoor unit. For the air conditioner indoor unit, in addition to the heat exchanger 2, the first wind wheel 3 and the related assembly structure, the air conditioner indoor unit, such as the cross flow fan blades, the motor, the air duct assembly, the air sweeping structure and other air conditioner components, are all prior art in terms of the specific structure and assembly relationship of the related components, which are not described in detail here.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0035] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. An air conditioner indoor unit, comprising a housing (1), characterized in that: An air outlet (102) is arranged at the top of the shell (1), an air inlet (101) is arranged at the bottom of the shell (1), a first wind wheel (3) is arranged between the air inlet (101) and the air outlet (102), a rotatable air outlet channel (105) is arranged between the first wind wheel (3) and the air outlet (102), a rotatable second wind guide plate (104) is arranged on one side of the air inlet (101), and the second wind guide plate (104) can selectively close the air inlet (101), the shell (1) comprises a connected lower wall plate (13) and a front panel (14), the air outlet (102) is arranged on the front panel (14), 14), a first air guide plate (103) is arranged at the upper end of the air outlet (102), the first air guide plate (103) rotates along the upper edge of the front panel (14), the rotation angles of the first air guide plate (103), the second air guide plate (104) and the air outlet channel (105) are α, β and γ respectively, wherein the value of α is 0-90°, the value of β is 0-135°, and the value of γ is 0-90°, a second wind wheel (4) is arranged at the outlet end of the air outlet channel (105), the plane where the second wind wheel (4) is located is perpendicular to the air outlet channel (105), and the first wind wheel (3) is a cross-flow wind wheel.

2. The air conditioner indoor unit according to claim 1, characterized in that: The air inlet (101) is arranged on the lower wall plate (13), and a rotatable second air guide plate (104) is arranged on a side of the air inlet (101) close to the front panel (14), and the second air guide plate (104) can selectively close the air inlet (101).

3. The air conditioner indoor unit according to claim 1, characterized in that: The shell (1) further comprises an upper top plate (11), wherein the upper top plate (11) is connected to the upper end of the front panel (14), and the air outlet channel (105) is capable of rotating towards the location of the air outlet (102) at an end away from the upper top plate (11).

4. The air conditioner indoor unit according to claim 1, characterized in that: A temperature sensor (7) is provided at the inlet end of the air outlet channel (105), and a sensing probe (8) is provided at the outlet end of the air outlet channel (105); the sensing probe (8) is located on a side of the second wind wheel (4) close to the air outlet (102).

5. The air conditioner indoor unit according to claim 1, characterized in that: The air conditioner indoor unit further comprises a filter (6), wherein the filter (6) detachably covers the air inlet (101).

6. An air conditioner, characterized in that: The air conditioner comprises the air conditioner indoor unit according to any one of claims 1-5.

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