WO2023000650A1

WO2023000650A1 - Fresh air apparatus, air conditioner indoor unit, and air conditioner

Info

Publication number: WO2023000650A1
Application number: PCT/CN2022/075771
Authority: WO
Inventors: 袁小辉; 汪鹏飞; 侯竑宇; 孙朋飞; 张德明; 郝本华
Original assignee: 青岛海尔空调器有限总公司; 青岛海尔空调电子有限公司; 海尔智家股份有限公司
Priority date: 2021-07-23
Filing date: 2022-02-10
Publication date: 2023-01-26
Also published as: CN113483402B; CN113483402A

Abstract

A fresh air apparatus, an air conditioner indoor unit, and an air conditioner. The fresh air apparatus comprises an air inlet duct (1) and a fresh air swinging vane (21). The air inlet duct (1) is provided with an indoor air inlet (12) and a fresh air inlet (11); a wall of the air inlet duct (1) is provided with a mounting hole (14) and a guide groove (13), the mounting hole (14) being provided close to the fresh air inlet (11); the fresh air swinging vane (21) is rotatably mounted in the mounting hole (14) by means of a rotating shaft (22), the fresh air swinging vane (21) being used to adjust a fresh air inlet amount; the guide groove (13) is used to receive a part of the rotating shaft (22) during mounting of the fresh air swinging vane (21), and to guide the fresh air swinging vane (21) to the mounting hole (14). The fresh air apparatus is used to overcome the problem of deteriorating indoor air quality due to an indoor environment being in a closed state for a long period of time.

Description

Fresh air device, air conditioner internal unit and air conditioner

This application claims the priority of the Chinese patent application with the application number 202110838980.2 and the application name "Fresh Air Device, Air Conditioner Inner Unit and Air Conditioner" submitted to the China Patent Office on July 23, 2021, the entire contents of which are incorporated in this application by reference middle.

technical field

The invention relates to the technical field of air treatment, in particular to a fresh air device, an inner unit of an air conditioner and an air conditioner.

Background technique

Air conditioner is a widely used household appliance, which generally has the functions of heating and cooling. When the ambient temperature is too low or too high, it can adjust the temperature of the indoor air to provide users with a suitable indoor environment and effectively improve the user's comfort. quality of life.

In related technologies, an air conditioner usually includes an air conditioner inner unit and an air conditioner outer unit connected to each other. The air conditioner outer unit usually includes an outdoor heat exchanger, and the air conditioner inner unit usually includes an indoor heat exchanger, a throttling device and a compressor. When the air conditioner performs refrigeration work, the compressor compresses the gaseous refrigerant into a high-temperature and high-pressure gaseous state, and sends it to the outdoor heat exchanger for cooling. After cooling, the high-temperature and high-pressure gaseous refrigerant becomes a medium-temperature and high-pressure liquid refrigerant. The medium-temperature and high-pressure liquid refrigerant is throttled and reduced by the throttling device to become a low-temperature and low-pressure gas-liquid mixture, and the low-temperature and low-pressure gas-liquid mixture is vaporized into a gaseous state through the indoor heat exchanger to absorb heat in the air, thereby achieving refrigeration. The effect; the gaseous refrigerant returns to the compressor to continue to compress, and continues to cycle for refrigeration.

However, when the air conditioner is in the cooling working state, the indoor environment where the air conditioner is located is usually in a closed state to ensure the cooling effect. However, being in a closed state for a long time will cause the air quality of the indoor air to decline.

Contents of the invention

The invention provides a fresh air device, an air conditioner internal unit and an air conditioner, so as to overcome the problem that the air quality of the indoor air decreases due to the long-term closed state of the indoor environment.

One aspect of the present invention provides a fresh air device, comprising: an air inlet duct and a fresh air swing blade; the air inlet duct has an indoor air inlet and a fresh air inlet; the wall of the air inlet duct is provided with an installation hole and a guide groove; The installation hole is set close to the fresh air inlet; the fresh air swing blade is rotatably installed in the installation hole through a rotating shaft, and the fresh air swing blade is used to adjust the fresh air intake; the guide groove is used for installation The fresh air swing vane accommodates part of the rotating shaft and guides the fresh air swing vane to the installation hole.

In one possible implementation manner, the air inlet duct includes: a first pipe wall and a second pipe wall oppositely arranged, and a third pipe wall and a fourth pipe wall oppositely arranged, and the third pipe wall and the fourth pipe wall connect the first pipe wall and the second pipe wall; the fresh air inlet is arranged on the first pipe wall; at least one of the third pipe wall and the fourth pipe wall is provided with the mounting holes.

In one possible implementation manner, the air inlet duct has a first end facing the air driving member and a second end opposite to the first end; the air inlet duct also has a first end extending axially. Five pipe walls, the fifth pipe wall is located between the third pipe wall and the fourth pipe wall, the fifth pipe wall is connected with the first pipe wall and the second pipe wall; the fifth pipe wall The edge of the wall facing the first end is connected to the third pipe wall through the first connecting wall; the edge of the fifth pipe wall facing the second end is connected to the second connecting wall and the fourth pipe wall Connection; the fourth pipe wall and the fifth pipe wall are provided with the installation holes.

In one possible implementation manner, parts of the first connecting wall and the fifth pipe wall close to the first pipe wall are recessed toward the second end to form the guide groove, and the guide groove and the There is a preset spacing between the mounting holes.

In one possible implementation manner, the preset distance is smaller than or equal to the diameter of the installation hole.

In one possible implementation manner, the preset distance is less than or equal to a minimum distance between a hole wall of the installation hole and the second connecting wall.

In one possible implementation manner, one end of the rotating shaft protrudes from the fourth pipe wall; and the end of the rotating shaft protruding from the fourth pipe wall is connected to a swing blade driving member.

In one possible implementation manner, the indoor air inlet includes a plurality of long holes distributed at intervals.

Another aspect of the present invention also provides an air conditioner indoor unit, comprising the fresh air device as described in any one of the foregoing and a casing, and the fresh air device is installed on the casing.

Another aspect of the present invention also provides an air conditioner, comprising: an air conditioner external unit connected to each other and the aforementioned air conditioner internal unit.

The fresh air device, the air conditioner internal unit and the air conditioner provided by the present invention are provided with installation holes and guide grooves on the pipe wall of the air inlet pipe; the installation holes are arranged close to the fresh air inlet; the fresh air swing blades are rotatably arranged in the installation holes through the rotating shaft , used to adjust the fresh air intake; the guide groove is used to accommodate part of the rotating shaft and guide the fresh air swing blade to the installation hole when the fresh air swing blade is installed. In this way, it is beneficial to realize the installation of the fresh air swing blade and to improve the assembly efficiency of the fresh air device.

Description of drawings

The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and the present invention is not limited to the following specific embodiments.

Fig. 1 is a schematic structural diagram of an air inlet duct provided by an exemplary embodiment of the present invention;

Fig. 2 is a structural schematic diagram II of an air inlet duct provided by an exemplary embodiment of the present invention;

Fig. 3 is a structural schematic diagram III of a fresh air device provided by an exemplary embodiment of the present invention;

Fig. 4 is a schematic diagram of the third state where the rotating shaft is located in the guide groove during the assembly process of the fresh air device provided by an exemplary embodiment of the present invention;

Fig. 5 is a schematic cross-sectional view at A-A of Fig. 4;

Fig. 6 is a schematic diagram of the state when one end of the rotating shaft is assembled with one of the mounting holes provided by an exemplary embodiment of the present invention;

Fig. 7 is a schematic diagram of the state when the other end of the rotating shaft is assembled with another mounting hole provided by an exemplary embodiment of the present invention;

Fig. 8 is a schematic diagram of a state when two ends of the rotating shaft are respectively assembled with corresponding mounting holes according to an exemplary embodiment of the present invention.

Explanation of reference signs: 1-air inlet pipe; 11-fresh air inlet; 12-indoor air inlet; 13-guide groove; 14-installation hole; 1a-first pipe wall; 1b-second pipe wall; 1c-the second pipe wall 1d-the fourth pipe wall; 1e-the fifth pipe wall; 1f-the second connecting wall; 1g-the first connecting wall;

detailed description

In related technologies, an air conditioner usually includes an air conditioner inner unit and an air conditioner outer unit connected to each other. The air conditioner outer unit usually includes an outdoor heat exchanger, and the air conditioner inner unit usually includes an indoor heat exchanger, a throttling device and a compressor. When the air conditioner performs refrigeration work, the compressor compresses the gaseous refrigerant into a high-temperature and high-pressure gaseous state, and sends it to the outdoor heat exchanger for cooling. After cooling, the high-temperature and high-pressure gaseous refrigerant becomes a medium-temperature and high-pressure liquid refrigerant. The medium-temperature and high-pressure liquid refrigerant is throttled and reduced by the throttling device to become a low-temperature and low-pressure gas-liquid mixture, and the low-temperature and low-pressure gas-liquid mixture is vaporized into a gaseous state through the indoor heat exchanger to absorb heat in the air, thereby achieving refrigeration. The effect; the gaseous refrigerant returns to the compressor to continue to compress, and continues to cycle for refrigeration. However, when the air conditioner is in the cooling working state, the indoor environment where the air conditioner is located is usually in a closed state to ensure the cooling effect. However, being in a closed state for a long time will cause the air quality of the indoor air to decline.

In order to overcome the above problems, an embodiment of the present invention provides a fresh air device, an air conditioner internal unit, and an air conditioner. By setting an air inlet pipe with a fresh air inlet and installing holes in the air inlet pipe, the fresh air swing blades are rotatably installed on the installation In this way, the fresh air intake volume can be adjusted through the rotation angle of the fresh air swing blade, thereby improving the indoor air quality by introducing fresh air; by setting guide grooves in the air intake pipe, the guide grooves are used to guide the fresh air swing when installing the fresh air swing blades. The blades are guided to the mounting holes, so that it is beneficial to realize the installation of the fresh air swing blades and improve the assembly efficiency of the fresh air device.

The structure, function and implementation process of the air conditioner indoor unit provided in this embodiment will be illustrated below with reference to the accompanying drawings.

The air conditioner indoor unit provided in this embodiment includes: a casing and a fresh air device installed in the casing. Wherein, this embodiment does not limit the specific installation position of the fresh air device on the casing, and the installation position of the fresh air device on the casing can be set according to actual needs.

Taking the air conditioner internal unit as a cabinet unit as an example, the casing includes an upper casing and a lower casing. The upper casing is used to accommodate components such as an indoor heat exchanger, and the lower casing is used to accommodate components such as a compressor. The fresh air device can be installed in the lower case.

Please refer to Figures 1 to 5, the fresh air device includes: an air inlet duct 1 and a fresh air swing blade 21; the air inlet duct 1 has an indoor air inlet 12 and a fresh air inlet 11; the wall of the air inlet duct 1 is provided with installation holes 14 and The guide groove 13; the installation hole 14 is set close to the fresh air inlet 11; the fresh air swing blade 21 is rotatably arranged in the installation hole 14 through the rotating shaft 22, and is used to adjust the fresh air intake; the guide groove 13 is used for installing the fresh air swing blade 21 A part of the rotating shaft 22 is accommodated and the fresh air swing blade 21 is guided to the installation hole 14 .

The air inlet pipe 1 can be connected with the air duct in the air conditioner inner unit, and is used to provide the outdoor fresh air entering the air inlet duct 1 to the air duct in the air conditioner inner unit. The fresh air device can also include an air driver, and the air driver is used to form a negative pressure at the air inlet duct 1, so that the outdoor fresh air can be sucked into the air inlet duct 1 and entered into the air duct driven into the air conditioner. Specifically, the air driving member may be located at an end of the air inlet duct 1 facing toward the casing.

The fresh air inlet 11 of the air inlet duct 1 is provided with a corrugated pipe, which is used to pass through the wall and communicate with the outdoor air. The shape of the fresh air inlet 11 can be adapted to the shape of the bellows. For example, when the circumferential direction of the bellows is circular, the fresh air inlet 11 is also circular. Fresh air air inlet 11 and bellows seal fit.

The air inlet duct 1 is also provided with an indoor air inlet 12 for allowing indoor air to enter the air inlet duct 1 . The indoor air enters the air intake duct 1 from the indoor air inlet, and the outdoor fresh air enters the air intake duct 1 from the outdoor fresh air inlet. The air inlet pipe 1 enters the fresh air pipe for further mixing and purification by a water washing device. In this way, the indoor fresh air with relatively high temperature and the outdoor fresh air with relatively low temperature can be used to avoid condensation caused by low fresh air temperature, thereby It is beneficial to ensure the working reliability of the fresh air device and the normal use of the air conditioner.

The air inlet duct 1 is provided with an installation hole 14 for installing the fresh air swing blade 21, and the installation hole 14 is set close to the fresh air inlet 11, so as to facilitate the adjustment of the opening area of the fresh air inlet 11 through the swing blade, so as to achieve the purpose of adjusting the fresh air intake volume . The fresh air swing blade 21 is rotatably disposed in the installation hole 14 through the rotating shaft 22 ; wherein, in order to ensure the smooth rotation of the fresh air swing blade 21 , a bearing may be arranged between the rotating shaft 22 and the installation hole 14 .

In order to prevent the bellows from interfering with other components of the air conditioner, the fresh air inlet 11 and the bellows are relatively arranged at the end of the air inlet duct 1 away from the casing. The end of the air inlet duct 1 facing the casing is the first end, and the end of the air inlet duct 1 away from the casing is the second end. The fresh air inlet 11 and the bellows are oppositely arranged at the second end of the air inlet duct 1 .

In order to ensure the strength of the air inlet pipe 1, the second end of the air inlet pipe 1 is a closed end. In this way, when the fresh air swing blade 21 is installed, the fresh air swing blade 21 needs to enter the fresh air pipe from the opening at the first end and gradually reach 14 mounting holes.

The air inlet pipe 1 is also provided with a guide groove 13, the guide groove 13 communicates with the chamber of the air inlet pipe 1, the guide groove 13 is set near the installation hole 14, and the guide groove 13 is used to accommodate part of the rotating shaft 22 when the fresh air swing blade 21 is installed. And guide the fresh air swing blade 21 to the installation hole 14 to reduce the installation difficulty of the fresh air swing blade 21 with the rotating shaft 22 . The opening end of the guide groove 13 is set toward the first end, and the bottom of the guide groove 13 is set toward the second end. The guide groove 13 is arranged along the axial direction of the air inlet duct 1, so as to guide the rotating shaft 22 of the fresh air swing blade 21 close to The area of the installation hole 14 is conducive to the entry of the rotating shaft 22 of the fresh air louver into the corresponding installation hole 14 .

When assembling, put the fresh air swing blade 21 with the rotating shaft 22 into the air inlet duct 1, and control the fresh wind swing blade 21 to move toward the second end; Part of it is accommodated in the guide groove 13; the fresh air swing blade 21 is controlled to continue moving to the second end along the extension direction of the guide groove 13 until it moves to the bottom of the guide groove 13 near the second end, as shown in FIG. 5 . Put the end of the rotating shaft 22 away from the guide groove 13 into the corresponding installation hole 14, as shown in Figure 6; put the end of the rotating shaft 22 facing the guide groove 13 into the corresponding another installation hole 14, as shown in Figure 7 Show. In this way, the assembly of the fresh air swing blade 21 with the rotating shaft 22 is realized. After the fresh air swing blade 21 is assembled in place, as shown in FIG. 8 .

In the air conditioner internal unit provided by the embodiment of the present invention, the installation hole 14 and the guide groove 13 are provided on the pipe wall of the air inlet pipe 1; the installation hole 14 is arranged close to the fresh air inlet 11; The installation hole 14 is used to adjust the fresh air intake; the guide groove 13 is used to accommodate part of the rotating shaft 22 and guide the fresh air swing blade 21 to the installation hole 14 when the fresh air swing blade 21 is installed. In this way, it is beneficial to realize the installation of the fresh air swing blade 21 and to improve the assembly efficiency of the fresh air device.

In one possible implementation, as shown in FIG. 2 , the air inlet duct 1 includes: a first pipe wall 1 a and a second pipe wall 1 b oppositely arranged, and a third pipe wall 1 c and a fourth pipe wall 1 c oppositely arranged. The wall 1d, the third pipe wall 1c and the fourth pipe wall 1d connect the first pipe wall 1a and the second pipe wall 1b; the fresh air inlet 11 is arranged on the first pipe wall 1a; the third pipe wall 1c and the fourth pipe wall At least one of 1d is provided with a mounting hole 14 .

In some examples, the air inlet pipe 1 has a first end facing the air driving member and a second end opposite to the first end; the air inlet pipe 1 also has a fifth pipe wall 1e extending in the axial direction, and the fifth pipe wall 1e is located between the third pipe wall 1c and the fourth pipe wall 1d, the fifth pipe wall 1e is connected with the first pipe wall 1a and the second pipe wall 1b; the edge of the fifth pipe wall 1e towards the first end passes through the first connection The wall 1g is connected to the third pipe wall 1c; the edge of the fifth pipe wall 1e towards the second end is connected to the fourth pipe wall 1d through the second connecting wall 1f; the fourth pipe wall 1d and the fifth pipe wall 1e are provided with installation holes 14 . In this way, the length of the third pipe wall 1c in the axial direction can be relatively long, which is beneficial to make the indoor air inlet 12 have a relatively large area, and is beneficial to increase the air intake of the indoor air.

The first tube wall 1a and the second tube wall 1b are generally in the shape of a flat plate. The second pipe wall 1b is provided with an indoor air inlet 12. Along the circumferential direction of the air inlet pipe 1 , the size of the first pipe wall 1 a is smaller than the second size, which is beneficial for the indoor air inlet 12 to have a larger air inlet area. The third tube wall 1c and the fourth tube wall 1d may be arc-shaped plate-shaped structures.

In this example, as shown in Fig. 2, Fig. 3 and Fig. 4, the part of the first connecting wall 1g and the fifth pipe wall 1e close to the first pipe wall 1a is recessed toward the second end to form a guide groove 13, and the guide groove 13 There is a preset distance from the installation hole 14 . The guide groove 13 extends from the side of the fifth pipe wall 1e toward the first end to the opposite side, and the guide groove 13 extends from the side toward the fourth pipe wall 1d to the opposite side. A side of the guide groove 13 facing the fourth pipe wall 1 d is provided with an escape opening, and the escape opening can allow the rotating shaft 22 to move along the axial direction of the air inlet duct 1 .

In some other examples, both the fourth pipe wall 1d and the fifth pipe wall 1e may be provided with a guide groove 13, the guide groove 13 extends from the first end to the second end, and the guide groove 13 extends from the fourth pipe wall 1d and the fifth pipe wall 1e. The five-pipe wall 1e extends toward the opposite side from one side of the cavity of the air inlet duct 1 .

In some other examples, both the third pipe wall 1c and the fourth pipe wall 1d may be provided with mounting holes 14, and both the third pipe wall 1c and the fourth pipe wall 1d may be provided with guide grooves 13, and the guide grooves 13 are automatically The first end extends to the second end, and the guide groove 13 extends from one side of the third pipe wall 1c and the fourth pipe wall 1d towards the cavity of the air inlet duct 1 to the opposite side.

In this example, as shown in FIG. 2 , FIG. 5 to FIG. 8 , there is a preset distance between the guide groove 13 and the installation hole 14 . In this way, it is not only beneficial to lower the rotation shaft 22 of the fresh air swing blade 21 to be installed in the installation hole 14 , but also facilitates the reliable positioning of the rotation shaft 22 of the fresh air swing blade 21 in the installation hole 14 . Wherein, the preset distance may be the minimum distance between the bottom wall of the guide groove 13 and the wall of the installation hole 14 . The specific value of the preset distance can be set according to actual needs, and will not be repeated here in this embodiment.

Optionally, the preset distance is smaller than or equal to the diameter of the installation hole 14 . The preset distance may be larger than the radius of the installation hole 14, so as to ensure the strength of the corresponding area. For example, when the diameter of the mounting hole 14 is 8.5 mm, correspondingly, the preset distance between the guide groove 13 and the mounting hole 14 can be 8 mm, 7 mm, 6.5 mm, 6 mm, 5.5 mm, 5 mm Any one of or a value between any two of the above.

Optionally, the minimum distance between the hole wall of the installation hole 14 and the second connecting wall 1f is smaller than or equal to the diameter of the installation hole 14 , so as to reduce the occupied space of the air inlet duct 1 . For example, when the diameter of the mounting hole 14 is 8.5 mm, correspondingly, the minimum distance between the hole wall of the mounting hole 14 and the second connecting wall 1f can be any one of 8 mm, 8.25 mm, 8 mm or A value between any two of the above.

Optionally, the preset distance is less than or equal to the minimum distance between the hole wall of the installation hole 14 and the second connecting wall 1f. The preset distance may be larger than the radius of the installation hole 14, so as to ensure the strength of the corresponding area. For example, when the diameter of the mounting hole 14 is 8.5 mm, correspondingly, the preset distance between the guide groove 13 and the mounting hole 14 can be 8 mm, 7 mm, 6.5 mm, 6 mm, 5.5 mm, 5 mm Any one of or a value between any two of the above.

Optionally, one end of the rotating shaft 22 protrudes from the fourth pipe wall 1d; The swing blade driving member 23 may be communicatively connected with the control unit of the air conditioner interior unit. The control unit can control the position of the fresh air swing blade 21 by controlling the steering and steering angle of the swing blade driving member 23 , and then control the air intake volume of the fresh air inlet 11 .

For example, when the fresh air swing blade 21 rotates to be parallel to the first connecting wall 1g or the second connecting wall 1f, the open area of the fresh air inlet 11 is the largest, and the fresh air intake volume is the largest; When the tube walls 1a are parallel, the opening area of the fresh air inlet 11 is the smallest, and the fresh air intake volume is the smallest.

Optionally, the indoor air inlet 12 includes a plurality of long holes distributed at intervals. The first tube wall 1 a , the third tube wall 1 c and the fourth tube wall 1 d are provided with a plurality of long holes distributed at intervals, and the length direction of the long holes is parallel to the axial direction of the air inlet duct 1 . The part of the first pipe wall 1a close to the third pipe wall 1c may also be provided with long holes. Optionally, the first connecting wall 1g and the second connecting wall 1f may also be provided with a plurality of long holes distributed at intervals, and the length direction of the long holes may be arranged perpendicular to the axial direction of the air inlet duct 1 .

Optionally, in order to improve the air quality of the fresh air entering the room, the fresh air device may also have a water washing device. The air driving part can also drive the outdoor fresh air and indoor air entering the fresh air duct to the water washing device for purification. The water washing device is connected to the pipeline in the air conditioner inner unit.

When the air conditioner is in the mixed wind mode, under the action of the driving force provided by the air driver, the outdoor fresh air enters the air inlet duct 1 from the fresh air inlet 11, and the indoor air enters the air inlet duct 1 from the indoor air inlet 12. When the indoor air flows in the air inlet pipe 1, a certain degree of mixing occurs, and the outdoor fresh air and indoor air are then input into the washing device. The outdoor fresh air and indoor air are purified during the circulation in the washing device, and the outdoor fresh air and indoor air There is also further mixing during circulation in the water wash unit. The air driver delivers the purified mixed air to the room.

The water washing device may include: a water tank and a water washing unit. The water tank can be in regular shapes such as cylinders and cuboids, and of course the water tank can also be in other irregular shapes, which are not limited in this embodiment. The water tank may have a bottom wall and a side wall surrounding the bottom wall, the side wall extends upwards, and the upper end of the side wall may be connected with a top wall. The bottom wall, the side wall and the top wall of the water tank together form a containing space for containing liquid.

The water tank is provided with an air inlet for fresh air to enter, and the air inlet can be arranged on the side wall of the water tank. Optionally, the air inlet is arranged at a relatively upper position on the side wall of the water tank, so as to prevent the washing liquid in the water tank from flowing out .

The bottom of the water tank can be provided with a base. The water tank is detachably connected to the base, so that the water tank can be taken out conveniently. The air driver can be disposed on the base. The air driving part is connected with the water washing unit in the water tank through the transmission shaft, so as to be able to drive the water washing unit to rotate. Part of the water washing unit can be in contact with the liquid in the water tank, so as to drive the liquid in the water tank to move under the driving force provided by the air drive member.

Optionally, the water washing unit may include a water throwing part, and the function of the water throwing part is to rotate under the drive of the air drive part to absorb water from the lower end of the water throwing part to the upper end, and to form a water curtain around the water throwing part. Throw it out, and finally the water thrown out will flow into the lower end of the water tank again under the action of gravity, so as to realize the recycling of water. Specifically, a gap is formed between the lower end of the water rejection part and the bottom surface of the water tank, the lower end of the water rejection part is provided with a water inlet, and the side wall of the water rejection part is provided with a plurality of water outlet holes, and the water rejection part is driven by the air drive part. Rotate downwards to suck water into the water throwing part and make water throw out from the water outlet hole to form a water curtain.

During specific work, the air drive part drives the water throwing part to rotate, and a negative pressure will be formed inside the water throwing part so that the water in the water tank will be sucked into the water throwing part from the water inlet at the lower end of the water throwing part; The side wall of the water throwing piece flows towards the upper end of the water throwing piece. Since there are multiple water outlet holes on the side wall of the water throwing piece, when the water flow rises to the height of the water outlet hole, it will be thrown out from the water outlet hole at a high speed. Thereby a circle of water curtain is formed in the circumferential direction of the water throwing member. When the water throwing parts are thrown out of the water curtain, the air entering from the air inlet of the water tank will contact the water curtain to absorb dust in the air, thereby completing the washing and purification of the air.

Wherein, the part not described for the air conditioner internal unit in this embodiment may adopt conventional settings in the field, and will not be described in detail here in this embodiment.

This embodiment also provides a fresh air device, the structure, function and implementation process of the fresh air device can be compared with the fresh air device in any of the foregoing examples.

This embodiment also provides an air conditioner, including an air conditioner outer unit and an air conditioner inner unit connected to each other. The structure, function and implementation process of the air-conditioning inner unit can be the same as the air-conditioning inner unit in any of the foregoing examples.

It should be noted that the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In the present invention, terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense, for example, it can be a fixed connection or a detachable connection unless otherwise clearly specified and limited. , or integrated; can be mechanically connected, can also be electrically connected or can communicate with each other; can be directly connected, can also be indirectly connected through an intermediary, can be the internal communication of two components or the interaction relationship between two components, Unless expressly defined otherwise. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature may be "on" or "under" a second feature in that the first and second features are in direct contact, or the first and second features are indirectly contacted through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the level of the first feature is higher than that of the second feature. "Below", "below" and "under" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply mean that the first feature is less horizontally than the second feature.

In the above description, descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean specific features, structures described in connection with the embodiment or example , material or feature is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims

A fresh air device, characterized in that it includes: an air inlet duct and a fresh air swing blade; the air inlet duct has an indoor air inlet and a fresh air inlet;

The pipe wall of the air inlet pipe is provided with an installation hole and a guide groove; the installation hole is arranged near the fresh air inlet;

The fresh air swing blade is rotatably installed in the installation hole through a rotating shaft, and the fresh air swing blade is used to adjust the fresh air intake volume;

The guide groove is used for accommodating part of the rotating shaft and guiding the fresh air swing blade to the installation hole when the fresh air swing blade is installed.
The fresh air device according to claim 1, wherein the air inlet duct comprises: a first pipe wall and a second pipe wall oppositely arranged, and a third pipe wall and a fourth pipe wall oppositely arranged, the the third pipe wall and the fourth pipe wall connect the first pipe wall and the second pipe wall;

The fresh air inlet is arranged on the first pipe wall; at least one of the third pipe wall and the fourth pipe wall is provided with the installation hole.
The fresh air device according to claim 2, wherein the air inlet duct has a first end facing the air driving member and a second end opposite to the first end;

The air inlet duct also has a fifth pipe wall extending axially, the fifth pipe wall is located between the third pipe wall and the fourth pipe wall, and the fifth pipe wall is connected to the first pipe wall. The wall is connected to the second tube wall; the edge of the fifth tube wall towards the first end is connected to the third tube wall through the first connecting wall; the edge of the fifth tube wall towards the second end passes through the second connecting wall is connected to the fourth pipe wall;

The fourth pipe wall and the fifth pipe wall are provided with the installation holes.
The fresh air device according to claim 3, wherein the part of the first connecting wall and the fifth pipe wall close to the first pipe wall is recessed toward the second end to form the guide groove, and the guide There is a preset distance between the groove and the installation hole.
The fresh air device according to claim 4, wherein the preset distance is smaller than or equal to the diameter of the installation hole.
The fresh air device according to claim 4, wherein the preset distance is less than or equal to the minimum distance between the hole wall of the installation hole and the second connecting wall.
The fresh air device according to any one of claims 3-6, wherein one end of the rotating shaft protrudes from the fourth pipe wall; the end of the rotating shaft protruding from the fourth pipe wall is connected to the swing blade driver.
The fresh air device according to any one of claims 1-7, wherein the indoor air inlet includes a plurality of long holes distributed at intervals.
An air conditioner internal unit, characterized in that it comprises the fresh air device and a casing according to any one of claims 1-8, and the fresh air device is installed on the casing.
An air conditioner, characterized by comprising: an air conditioner external unit connected to each other and the air conditioner inner unit according to claim 9 .