WO2024098745A1

WO2024098745A1 - Fresh air device and air conditioner

Info

Publication number: WO2024098745A1
Application number: PCT/CN2023/100075
Authority: WO
Inventors: 俞旭; 周诗; 商竹贤; 朱勇强; 田振; 张志伟; 陈发英; 倪嘉彤; 王鹏; 尚彬
Original assignee: 宁波奥克斯电气股份有限公司; 奥克斯空调股份有限公司
Priority date: 2022-11-11
Filing date: 2023-06-14
Publication date: 2024-05-16
Also published as: CN118066597A

Abstract

A fresh air device (010) and an air conditioner. The fresh air device (010) comprises a housing (100), a fan (300), and a damper assembly (200); the fan (300) is disposed in the housing (100) and used for forming an air path passing through the fresh air device; the housing (100) is provided with an indoor air inlet; an accommodating recess (111) is formed in the outer side of the housing (100); the damper assembly (200) comprises a damper (210) and a driving member (220); the driving member (220) is disposed in the accommodating recess (111); the accommodating recess (111) has a bottom and an opening opposite to the bottom; the driving member (220) is transmittingly connected to the damper (210) by means of the opening of the accommodating recess (111); and the driving member (220) is used for driving the damper (210) to move relative to the housing (100) so as to open or close the indoor air inlet. The driving member (220) is disposed in the accommodating recess (111), so that the driving member (220) is prevented from protruding from the outer surface of the housing (100), thereby improving the structural compactness of the fresh air device (010), and improving the flatness of the outer side of the housing. The air conditioner comprises the fresh air device (010).

Description

Fresh air device and air conditioner

Technical Field

The present application relates to the technical field of air conditioning, and in particular to a fresh air device and an air conditioner.

Background technique

As people's requirements for indoor air quality become higher and higher, fresh air devices are gradually becoming popular. Some fresh air devices can not only introduce fresh air from the outdoors into the room, but also discharge or purify the dirty air in the room. An indoor air inlet is provided on the shell of this fresh air device, through which the indoor air can be sucked to discharge or purify the dirty air. A damper is provided on the outside of the shell of the existing fresh air device, and the damper can be driven by a driving member to open or close the indoor air inlet. In the related art, the driving member is protrudingly arranged on the outer surface of the shell, which results in poor structural compactness of the fresh air device and affects the flatness of the outer side of the shell.

Summary of the invention

Problem to be solved by the present application: The existing fresh air device has a problem of poor structural compactness due to the driving member being protruded from the outer surface of the shell.

To solve the above problems, in the first aspect, the present application provides a fresh air device, including a shell, a fan and a damper assembly, the fan is arranged in the shell, the fan is used to form an air path running through the fresh air device, the shell is provided with an indoor air inlet, the outer side of the shell is provided with a receiving groove, the damper assembly includes a damper and a driving member, the driving member is arranged in the receiving groove, the receiving groove has a bottom and an opening opposite to the bottom, the driving member is transmission-connected to the damper through the opening of the receiving groove, and the driving member is used to drive the damper to move relative to the shell to open or close the indoor air inlet.

In an embodiment of the present application, the driving member of the damper assembly is disposed in a receiving groove of the shell and is connected to the damper through an opening to drive the damper to move. This prevents the driving member from protruding from the outer surface of the shell, thereby improving the structural compactness of the fresh air device and improving the flatness of the outer side of the shell.

In an optional embodiment, one side of the accommodating groove forms an opening, and the opening connects the inside and the outside of the accommodating groove.

In this embodiment, an opening is formed on one side of the receiving groove, so that the circuit of the driving member can be easily extended out of the receiving groove, and the heat dissipation of the driving member can be enhanced to prevent the driving member from overheating.

In an optional embodiment, the open port and the indoor air inlet are located on different sides of the receiving tank.

In an optional embodiment, a mounting structure is provided in the receiving groove, and the mounting structure is used to fix the driving member.

In an optional embodiment, the mounting structure includes at least one of a mounting hole, a clamping assembly, and a buckle assembly. By providing mounting structures such as mounting holes, clamping assemblies, and buckle assemblies, the driver can be effectively fixed and the driver can be easily installed and removed.

In an optional embodiment, the damper is attached to the outer side of the shell and covers at least a portion of the accommodating groove, and the driving member is used to drive the damper to rotate against the shell to open or close the indoor air inlet.

The damper is attached to the outer surface of the housing and covers at least a portion of the receiving groove so that it can be directly connected to the driving member received in the receiving groove. In this embodiment, the damper rotates against the housing to open or close the indoor air inlet. The damper is closed, and the direct output of the driving part (such as a motor) is usually rotation. Therefore, compared with driving the damper to move in a straight line, driving the damper to rotate can simplify the transmission and improve the transmission efficiency, so it is not easy to get stuck, and it can also reduce the power requirements of the driving part. In addition, compared with the flip damper, the damper rotates close to the shell, which can also reduce the space occupied by the damper when it moves. The damper is not easy to interfere with other parts, which is conducive to making the structure of the fresh air device compact.

In an optional embodiment, one of the shell and the damper is provided with a first guide groove, and the other is provided with a first guide portion, the first guide groove and the first guide portion are slidably matched, and when the damper rotates relative to the shell, the first guide portion can slide along the first guide groove.

In this embodiment, the sliding cooperation between the first guide groove and the first guide portion makes the circumferential rotation of the damper unrestricted and less prone to radial displacement during the rotation process, thereby improving the stability of the damper.

In an optional embodiment, the damper is attached to the outer surface of the shell, and the damper assembly also includes a pressing member, which is arranged on the side of the damper away from the shell and connected to the shell, and the pressing member is used to limit the movement of the damper away from the shell.

In this embodiment, the pressing member can limit the axial displacement of the damper, so that it sticks to the outer surface of the shell and is not easy to fall off axially, which further improves the stability of the damper.

In an optional embodiment, the indoor air inlet includes a dirty air inlet and a purified air inlet, and the damper can block one of the dirty air inlet and the purified air inlet or block both the dirty air inlet and the purified air inlet at the same time when driven by a driving member.

In an optional embodiment, a clamping portion is provided on the pressing member, and a clamping slot is provided on the housing, and the clamping portion and the clamping slot are clamped together to realize that the pressing member is detachably connected to the housing. Through the cooperation of the clamping slot and the clamping portion, the pressing member and the damper assembly can be conveniently assembled and disassembled while ensuring structural stability.

In an optional embodiment, a plurality of clamping parts are provided along the circumference of the pressing member, a plurality of matching parts corresponding to the clamping parts are provided on the outer surface of the shell, and a clamping slot is formed between the matching parts and the outer surface of the shell, and the pressing member can be rotated relative to the shell so that each clamping part is inserted into the corresponding clamping slot. The plurality of clamping parts are matched with the plurality of clamping slots at the same time by rotation, and the matching method is simple, efficient and stable. In addition, the matching part can effectively block the clamping part in the axial direction, so that the entire pressing member can stably press the damper to prevent it from falling off in the axial direction.

In an optional embodiment, one of the pressing member and the shell is provided with a second guide portion, and the other is provided with a second guide groove, the second guide groove slidably cooperates with the second guide portion, and when the pressing member rotates relative to the shell, the second guide portion can slide along the second guide groove.

In this embodiment, since the pressing member cooperates with the slot by rotating, the second guide groove and the second guide portion are provided to effectively position and guide the pressing member, making it easier to install the pressing member.

In an optional embodiment, a convex point is provided on the pressing member or the damper, and the pressing member and the damper abut against each other via the convex point.

In this embodiment, the indoor air inlet includes a dirty air inlet and a purified air inlet. Different air inlets are used under different working conditions to achieve different functions and better meet user needs. Since the fresh air device only enables one of the functions at the same time, the same damper is used to selectively open the dirty air inlet or the purified air inlet, and when the dirty air inlet and the purified air inlet are not used, the dirty air inlet and the purified air inlet are blocked with one damper at the same time, which can save the number of dampers and driving parts used and reduce costs.

In a second aspect, the present application provides an air conditioner, comprising an air conditioner main body and a fresh air device according to any one of the aforementioned embodiments, wherein the fresh air device is connected to the air conditioner main body.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a fresh air device in a fresh air mode according to an embodiment of the present application;

FIG2 is a first exploded view of a fresh air device in one embodiment of the present application;

FIG3 is a second exploded view of a fresh air device in one embodiment of the present application;

FIG4 is a schematic diagram of a fresh air device in a purification mode in one embodiment of the present application;

FIG5 is a schematic diagram of a fresh air device in an exhaust mode in an embodiment of the present application;

FIG6 is a third exploded view of a fresh air device in one embodiment of the present application;

FIG7 is a cross-sectional view of a fresh air device in a fresh air mode according to an embodiment of the present application;

FIG8 is a schematic diagram of a state of a fresh air device in a fresh air mode in one embodiment of the present application;

FIG9 is a cross-sectional view of a fresh air device in a purification mode according to an embodiment of the present application;

FIG10 is a schematic diagram of a state of a fresh air device in a purification mode in one embodiment of the present application;

FIG11 is a cross-sectional view of a fresh air device in an exhaust mode according to an embodiment of the present application;

FIG. 12 is a schematic diagram of the state of a fresh air device in an exhaust mode in an embodiment of the present application.

Description of reference numerals: 010-fresh air device; 100-housing; 101-dirty air inlet; 102-purified air inlet; 103-indoor air outlet; 104-inlet; 105-first chamber; 106-second chamber; 110-fresh air cover; 111-accommodating groove; 112-first guide groove; 113-second guide groove; 120-fresh air box; 130-fan housing; 200-damper assembly; 210-damper; 211-first guide portion; 212-convex point; 220-driving member; 230-pressing member ;231-clamping part;114-matching part;115-slot;232-connecting part;233-second guide part;300-fan;400-air valve;410-valve bracket;411-fresh air outlet;420-first door panel;421-first motor;430-second door panel;431-second motor;440-seal;500-first filter assembly;510-first filter bracket;520-first filter;600-second filter assembly;610-second filter bracket;620-second filter.

Detailed ways

In the related art, an indoor air inlet is provided on the shell of the fresh air device, through which the indoor air can be sucked to discharge or purify the polluted air. The indoor air inlet is opened or closed by a damper, which is connected to a driving member by transmission, and the driving member drives the damper to move. At present, the existing dampers often realize the opening and closing of the indoor air inlet by linear sliding, and the motor as the driving member is often protruded from the outer surface of the shell together with the damper. This arrangement of the damper assembly will result in a low structural compactness of the fresh air device and affect the flatness of the outer surface of the shell.

In order to improve the deficiencies of the above-mentioned prior art, the embodiment of the present application provides a fresh air device, which improves the flatness of the outer side of the shell and the structural compactness of the entire fresh air device by accommodating the driving member in a receiving groove arranged on the outer side of the shell. In addition, the embodiment of the present application also provides an air conditioner, including the above-mentioned fresh air device.

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

FIG. 1 is a schematic diagram of a fresh air device 010 in a fresh air mode in an embodiment of the present application; FIG. 2 is a first exploded view of a fresh air device 010 in an embodiment of the present application; and FIG. 3 is a second exploded view of a fresh air device 010 in an embodiment of the present application. As shown in FIGS. 1 to 3, the fresh air device 010 provided in the embodiment of the present application comprises a housing 100, a fan 300 and a damper assembly 200. The fan 300 is arranged in the housing 100, and the fan 300 is used to form a wind path running through the fresh air device 010. The housing 100 is provided with an indoor air inlet, an indoor air outlet 103 and a fresh air outlet 411. Among them, the fresh air outlet 411 is used to connect to the outdoors, and its function is to introduce outdoor fresh air into the room, and to discharge indoor air to the outdoors. The indoor air inlet is used to introduce indoor air into the fresh air device 010, and then discharge it to the outdoors or discharge it into the room again through the indoor air outlet 103 after purification. The damper assembly 200 is used to control the opening or closing of the indoor air inlet.

In this embodiment, the indoor air inlet includes a dirty air inlet 101 and a purified air inlet 102. When the dirty air inlet 101 is opened, the indoor air can enter the housing 100 of the fresh air device 010 from the dirty air inlet 101 under the suction of the fan 300, and be discharged to the outside from the fresh air outlet 411. When the purified air inlet 102 is opened, the indoor air can enter the housing 100 of the fresh air device 010 from the purified air inlet 102 under the suction of the fan 300, and after being purified in the fresh air device 010, it is re-discharged into the room through the indoor air outlet 103. The quality of the indoor air is improved through this internal circulation. In this embodiment, the contour of the dirty air inlet 101 is set to an arch shape, and the contour shape of the purified air inlet 102 is set to a fan shape; in other optional embodiments, the shapes and sizes of the dirty air inlet 101 and the purified air inlet 102 can be set as needed.

In this embodiment, the damper assembly 200 includes a damper 210 and a driving member 220. The driving member 220 is used to drive the damper 210 to move relative to the housing 100 to open or close the indoor air inlet. The outer side of the housing 100 is provided with an inwardly recessed receiving groove 111. The driving member 220 is arranged in the receiving groove 111. The receiving groove 111 has a bottom and an opening opposite to the bottom. The driving member 220 is connected to the damper 210 through the opening of the receiving groove 111. By providing the receiving groove 111 and arranging the driving member 220 in the receiving groove 111, the damper assembly 200 can be more compactly combined with the housing 100, which is conducive to reducing the overall size of the fresh air device 010, and can also improve the flatness of the outer side of the housing 100.

Furthermore, one side of the accommodating groove 111 is open to form an opening, and the circuit of the driving member 220 can extend from the opening to the outside of the accommodating groove 111, and at the same time, the heat dissipation of the driving member 220 can be enhanced to prevent the driving member 220 from overheating. Optionally, the opening and the indoor air inlet are located on opposite sides of the accommodating groove 111. Specifically, the opening is arranged on the side of the accommodating groove 111 away from the purified air inlet 102, and is adjacent to the side where the polluted air inlet 101 is located. As shown in the figure, the accommodating groove 111 extends to the edge of the shell 100 to form an opening. During normal use, the opening is usually located on the rear side of the fresh air device 010 (usually facing the wall).

In an optional embodiment, the receiving groove 111 can be formed by bending the housing 100, that is, the bottom, sidewall or part of the housing 100 outside the receiving groove 111 are all plates, and the thickness can be set to be substantially the same, so the depth of the formed receiving groove 111 can be greater than the thickness of the housing 100. Of course, in other embodiments, the thickness of the receiving groove 111 can also be less than the thickness of the housing 100, for example, the receiving groove 111 is excavated on the outer surface of the housing 100, in which case the inner side of the housing 100 can remain flat.

A mounting structure (not shown in the figure) is provided in the receiving groove 111, and the mounting structure is used to fix the driving member 220. Optionally, the mounting structure includes at least one of a mounting hole, a clamping assembly, and a snap assembly. For example, the driving member 220 is detachably connected to the clamping structure or the snap-connecting structure; or, the driving member 220 is fixedly mounted to the mounting hole at the bottom of the receiving groove 111 by fasteners such as screws. By providing mounting structures such as mounting holes, clamping assemblies, snap-fit assemblies, etc., the driving member 220 can be effectively fixed, and the driving member 220 can also be easily loaded and unloaded.

In the present embodiment, the damper 210 is attached to the outer side of the housing 100 and covers at least a part of the receiving groove, and the driving member 220 is used to drive the damper 210 to rotate against the housing 100 to open or close the indoor air inlet. The damper 210 is attached to the outer surface of the housing 100 and covers at least a part of the receiving groove 111, so that it can be directly connected to the driving member 220 accommodated in the receiving groove 111. In the present embodiment, since the damper 210 rotates against the housing 100 to open or close the indoor air inlet, and the direct output of the driving member 220 (such as a motor) is usually rotation, compared with driving the damper 210 to make a linear motion, driving the damper 210 to rotate can simplify the transmission and improve the transmission efficiency, so it is not easy to get stuck, and the power requirement for the driving member 220 can also be reduced. Moreover, compared with the flip-type damper, the damper 210 rotating close to the shell can also reduce the space occupied by the damper 210 when it moves. The damper 210 is not easy to interfere with other components, which is conducive to making the structure of the fresh air device 010 compact.

In this embodiment, the damper 210 is plate-shaped, and the damper 210 can block one of the dirty air inlet 101 and the purified air inlet 102 or block both the dirty air inlet 101 and the purified air inlet 102 at the same time under the drive of the driving member 220. Since the fresh air device 010 only enables one of the functions at the same time, the same damper 210 is used to selectively open the dirty air inlet 101 or the purified air inlet 102, and when the dirty air inlet 101 and the purified air inlet 102 are not used, the same damper 210 is used to block both the dirty air inlet 101 and the purified air inlet 102 at the same time, which can save the number of dampers 210 and driving members 220 used and reduce costs. Figure 4 is a schematic diagram of the fresh air device 010 in the purification mode in one embodiment of the present application; Figure 5 is a schematic diagram of the fresh air device 010 in the exhaust mode in one embodiment of the present application. In FIG4 , the fresh air device 010 is in the purification mode, the purification air inlet 102 is opened, the polluted air inlet 101 is blocked by the damper 210, and the indoor air enters through the purification air inlet 102, and after purification, it is sent back to the room from the indoor air outlet 103. In FIG5 , the fresh air device 010 is in the exhaust mode, the polluted air inlet 101 is opened, the purification air inlet 102 is blocked by the damper 210, and the indoor air enters through the polluted air inlet 101, and is discharged to the outside through the fresh air outlet 411. The fresh air device 010 in FIG1 is in the fresh air mode, and the damper 210 blocks the purification air inlet 102 and the polluted air inlet 101 at the same time, because the fresh air mode does not need to use these two air inlets, and at this time, the outdoor fresh air enters from the fresh air outlet 411, and then enters the room from the indoor air outlet 103.

The specific shape and size of the air door 210 should be determined according to the shapes and sizes of the dirty air inlet 101 and the clean air inlet 102. In this embodiment, the damper 210 can completely open the dirty air inlet 101 and the purified air inlet 102 by rotating.

In this embodiment, the driving member 220 may be a motor, and may further be a stepping motor. The stepping motor can accurately control the angle of rotation, so that the position of the damper 210 on the rotation path can be accurately controlled, and then the damper 210 can be accurately controlled to open or close the corresponding air inlet. In the embodiment of the present application, since the damper 210 rotates against the housing 100 to realize the opening or closing of the indoor air inlet, compared with the linear drive damper 210, the damper assembly 200 of the embodiment of the present application can simplify the transmission and improve the transmission efficiency, so it is not easy to get stuck, and it can also reduce the power requirement of the driving member 220 (due to the small energy loss, no large output torque is required). In addition, the damper 210 rotates against the housing 100, which can reduce the space occupied by the damper 210 when it moves, and the damper 210 is not easy to interfere with other components, which is conducive to making the structure of the fresh air device 010 compact.

In this embodiment, one of the housing 100 and the damper 210 is provided with a first guide groove 112, and the other is provided with a first guide portion 211. The first guide groove 112 and the first guide portion 211 are slidably matched. When the damper 210 rotates relative to the housing 100, the first guide portion 211 can slide along the first guide groove 112. As shown in FIG. 2 and FIG. 3, the housing 100 of the fresh air device 010 is provided with a first guide groove 112, and the damper 210 is provided with a first guide portion 211. The first guide groove 112 and the first guide portion 211 both extend in the circumferential direction. In this embodiment, through the sliding match between the first guide groove 112 and the first guide portion 211, the rotation of the damper 210 in the circumferential direction is not restricted, and radial displacement is not easily generated during the rotation process, thereby improving the stability of the damper 210.

Furthermore, the damper assembly 200 further includes a pressing member 230, which is disposed on a side of the damper 210 away from the housing 100 and connected to the housing 100, and is used to limit the damper 210 from moving in a direction away from the housing 100. In this embodiment, the pressing member 230 can limit the displacement of the damper 210 in the axial direction, so that the damper 210 is attached to the outer surface of the housing 100 and is not easy to fall off in the axial direction, thereby further improving the stability of the damper 210.

Furthermore, a clamping portion 231 is provided on the pressing member 230, and a clamping slot 115 is provided on the housing 100. The clamping portion 231 is clamped and matched with the clamping slot 115 to realize that the pressing member 230 is detachably connected to the housing 100. Through the cooperation of the clamping slot 115 and the clamping portion 231, the pressing member 230 and the damper assembly 200 can be conveniently loaded and unloaded while ensuring the structural stability. Specifically in the present embodiment, in an optional embodiment, the pressing member 230 is an annular plate. The design of the annular plate can expose the indoor air inlet as much as possible, save the material of the pressing member 230, and reduce the weight of the equipment. A plurality of clamping parts 231 are arranged along the circumferential side of the pressing member 230, and a plurality of matching parts 114 corresponding to the clamping parts 231 are arranged on the outer surface of the housing 100, and a slot 115 is formed between the matching part 114 and the outer surface of the housing 100, and the pressing member 230 can be rotated relative to the housing 100 so that each clamping part 231 is inserted into the corresponding slot 115. The plurality of clamping parts 231 and the plurality of slots 115 are matched at the same time by rotation, and the matching method is simple, efficient and has good stability. In addition, the matching part 114 can effectively block the clamping part 231 in the axial direction, so that the entire pressing member 230 can stably press the damper 210 to prevent it from falling off in the axial direction. In this embodiment, three clamping parts 231 are arranged on the circumferential side of the pressing member 230, and three matching parts 114 are correspondingly arranged on the surface of the housing 100; in other embodiments, the number of the clamping parts 231 and the matching parts 114 can be adjusted as needed.

Furthermore, a connecting portion 232 is further provided on the outer peripheral side of the pressing member 230, and a connecting hole is provided on the connecting portion 232 for being fixedly connected with the housing 100 by means of fasteners such as screws. After the pressing member 230 is screwed and engaged with the card slot 115, the housing 100 is connected by screws, which can further enhance the stability of the pressing member 230.

Optionally, one of the pressing member 230 and the housing 100 is provided with a second guide portion 233, and the other is provided with a second guide groove 113, the second guide groove 113 and the second guide portion 233 are slidably matched, and when the pressing member 230 rotates relative to the housing 100, the second guide portion 233 can slide along the second guide groove 113. Specifically in this embodiment, the surface of the housing 100 is provided with the second guide groove 113, and the pressing member 230 is provided with the second guide portion 233. Since the pressing member 230 is matched with the card slot 115 by rotation, the second guide groove 113 and the second guide portion 233 can effectively position and guide the pressing member 230, so that the pressing member 230 is easier to install.

Optionally, a protrusion 212 is provided on the pressing member 230 or the damper 210, and the pressing member 230 and the damper 210 abut against each other through the protrusion 212. In this embodiment, the protrusion 212 is provided on the damper 210. In this embodiment, when the damper 210 rotates, there will be friction between the damper 210 and the pressing member 230. By providing the protrusion 212, friction can be reduced as much as possible. The contact area between the pressing member 230 and the damper 210 can reduce the friction and abnormal noise caused by the friction, thereby improving the stability of the device and the user experience.

FIG6 is a third exploded view of the fresh air device 010 in one embodiment of the present application; FIG7 is a cross-sectional view of the fresh air device 010 in one embodiment of the present application in the fresh air mode. As shown in FIG6 and FIG7, in this embodiment, the housing 100 includes a fresh air cover 110, a fresh air box 120, and a fan housing 130 arranged in sequence. The fresh air cover 110 and the fresh air box 120 form a first chamber 105, the fan housing 130 forms a second chamber 106, and the fan 300 is disposed in the second chamber 106. The dirty air inlet 101, the purified air inlet 102 and the damper assembly 200 are all arranged on the fresh air cover 110, the indoor air outlet 103 is formed in the fan housing 130, and the first chamber 105 is connected to the second chamber 106 through the air inlet 104, so the fan 300 can introduce indoor air from the dirty air inlet 101 and the purified air inlet 102 into the first chamber 105, and then introduce it into the second chamber 106 through the air inlet 104.

The fresh air device 010 includes a first filter assembly 500 and a second filter assembly 600 disposed in the first chamber 105. The first filter assembly 500 includes a first filter support 510 and a first filter 520, and the second filter assembly 600 includes a second filter support 610 and a second filter 620. As can be seen from FIG7, the air entering the dirty air inlet 101 can enter the second chamber 106 directly from the air inlet 104 without passing through the first filter assembly 500 and the second filter assembly 600; while the air entering the purified air inlet 102 needs to pass through the first filter assembly 500 and the second filter assembly 600 to enter the second chamber 106; the air entering from the fresh air inlet 411 needs to pass through the second filter assembly 600 to enter the second chamber 106. Therefore, the indoor air entering the dirty air inlet 101 can be directly discharged outdoors, and the air entering the purified air inlet 102 and the fresh air inlet will be filtered by the filter assembly to improve the cleanliness because it needs to enter the room. In this embodiment, the first filter assembly 500 and the second filter assembly 600 can be pulled out of or inserted into the shell 100 through a window provided on the shell 100, so that the first filter assembly 500 and the second filter assembly 600 can be easily maintained.

In this embodiment, the fresh air device 010 includes a damper 400, which is connected to the housing 100 and communicates with the first chamber 105 and the second chamber 106. The fresh air port 411 is arranged on the damper 400, so that the damper 400 can communicate the fresh air port 411 with the first chamber 105, or communicate the fresh air port 411 with the second chamber 106. In this embodiment, the damper 400 includes a valve support 410, a first door plate 420, a second door plate 430, a first motor 421, a second motor 431 and a sealing member 440. Among them, the fresh air port 411, the first opening and the second opening are formed on the valve support 410, the first opening is used to communicate with the first chamber 105, and the second opening is used to communicate with the second chamber 106. The first motor 421 is used to drive the first door plate 420 to flip to open or close the first opening; the second motor 431 is used to drive the second door plate 430 to flip to open or close the second opening. Furthermore, the second door plate 430 can block the air from the indoor air outlet 103 when the second opening is opened. In other words, the airflow originally directed to the indoor air outlet 103 by the fan 300 will enter the air valve 400 under the blocking effect of the second door plate 430, and then be sent out from the fresh air outlet 411. In FIG. 6 , the first opening and the second opening are connected to form a large opening, and in the assembled state, the first opening and the second opening are separated by a seal 440.

FIG8 is a schematic diagram of the state of the fresh air device 010 in the fresh air mode in one embodiment of the present application. As shown in FIG7 and FIG8, when the fresh air device 010 is in the fresh air mode, the purified air inlet 102 and the dirty air inlet 101 are both blocked by the damper 210. The first door plate 420 opens the first opening of the air valve 400, and the first chamber 105 is connected to the fresh air port 411; the second door plate 430 blocks the second opening, and the air valve 400 is separated from the second chamber 106. Therefore, when the fan 300 is started, the outdoor air can enter the first chamber 105 through the fresh air port 411, enter the second chamber 106 after being filtered by the second filter assembly 600, and then be sent into the room through the indoor air outlet 103. Since there may be some harmful components or particulate matter in the outdoor air, the outdoor air can be purified to a certain extent through the second filter assembly 600, so that the indoor air quality can be improved. The direction indicated by the hollow arrow in FIG7 is the airflow direction.

FIG9 is a cross-sectional view of a fresh air device 010 in a purification mode in an embodiment of the present application; FIG10 is a schematic diagram of a state of a fresh air device 010 in a purification mode in an embodiment of the present application. As shown in FIG9 and FIG10, when the fresh air device 010 is in the purification mode, the purification air inlet 102 is opened, and the dirty air inlet 101 is blocked by the damper 210. The first door plate 420 and the second door plate 430 close the first opening and the second opening of the damper 400 respectively, that is, the fresh air outlet 411 is not enabled in the purification mode. When the fan 300 is started, the indoor air can enter the first chamber 105 through the purification air inlet 102, enter the second chamber 106 after being filtered by the first filter assembly 500 and the second filter assembly 600, and then be sent back to the room through the indoor air outlet 103. Since the indoor air quality of the air conditioner is often relatively closed, the indoor air quality will gradually deteriorate over time. In the purification mode, the indoor air can be purified through the first filter assembly 500 and the second filter assembly 600, so that the indoor air quality can be improved. The direction indicated by the hollow arrow in Figure 9 is the airflow direction.

FIG. 11 is a cross-sectional view of a fresh air device 010 in an exhaust mode in an embodiment of the present application; FIG. 12 is a schematic diagram of the state of the fresh air device 010 in an exhaust mode in an embodiment of the present application. As shown in FIG. 11 and FIG. 12, when the fresh air device 010 is in the exhaust mode, the dirty air inlet 101 is opened, and the purified air inlet 102 is blocked by the damper 210. At this time, the first door plate 420 blocks the first opening of the air valve 400, and the first chamber 105 is not connected to the fresh air outlet 411; the second door plate 430 opens the second opening, and at the same time blocks the indoor air outlet 103 from exhausting air, and the air valve 400 is connected to the second chamber 106. Therefore, when the fan 300 is started, the outdoor air can enter the first chamber 105 through the dirty air inlet 101, without passing through the first filter assembly 500 and the second filter assembly 600, but directly enters the second chamber 106, and then is sent to the outside through the second opening of the air valve 400 and the fresh air outlet 411. The exhaust mode can actively exhaust the indoor air that has deteriorated due to long-term closure. The direction indicated by the hollow arrow in Figure 11 is the airflow direction.

The present application also provides an air conditioner (not shown in the figure), including an air conditioner main body and a fresh air device 010 in the above embodiment. The air conditioner can be a wall-mounted air conditioner or a cabinet-type air conditioner. The air conditioner main body is used to adjust the indoor temperature. When the air conditioner is a wall-mounted air conditioner, the fresh air device 010 is optionally arranged on one of the lateral directions of the air conditioner main body. At one end, the indoor air inlet is arranged on the side of the fresh air device 010 away from the air conditioner body to avoid mutual interference with the heat exchange air inlet at the top of the air conditioner body. The indoor air outlet 103 of the fresh air device 010 is arranged tilted downward.

Although the present application is disclosed as above, the present application 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 application, so the protection scope of the present application shall be subject to the scope defined by the claims.

Claims

A fresh air device, characterized in that it comprises a shell (100), a fan (300) and a damper assembly (200), wherein the fan (300) is arranged in the shell (100), and the fan (300) is used to form an air path running through the fresh air device (010), the shell (100) is provided with an indoor air inlet, and the outer side of the shell (100) is provided with a receiving groove (111), and the damper assembly (200) comprises a damper (210) and a driving member (220), wherein the driving member (220) is arranged in the receiving groove (111), and the receiving groove (111) has a bottom and an opening opposite to the bottom, and the driving member (220) is transmission-connected to the damper (210) through the opening of the receiving groove (111), and the driving member (220) is used to drive the damper (210) to move relative to the shell (100) to open or close the indoor air inlet.
The fresh air device according to claim 1 is characterized in that one side of the accommodating groove (111) forms an opening, and the opening connects the inside and the outside of the accommodating groove (111).
The fresh air device according to claim 2 is characterized in that the opening and the indoor air inlet are located on different sides of the accommodating groove (111).
The fresh air device according to claim 1 is characterized in that a mounting structure is provided in the accommodating groove (111), and the mounting structure is used to fix the driving member (220).
The fresh air device according to claim 4 is characterized in that the mounting structure includes at least one of a mounting hole, a clamping assembly, and a snap assembly.
The fresh air device according to claim 1 is characterized in that the damper (210) is attached to the outer side of the shell (100) and covers at least a portion of the receiving groove (111), and the driving member (220) is used to drive the damper (210) to rotate along the shell (100) to open or close the indoor air inlet.
The fresh air device according to claim 6 is characterized in that one of the shell (100) and the damper (210) is provided with a first guide groove (112), and the other is provided with a first guide portion (211), and the first guide groove (112) and the first guide portion (211) are slidably matched with each other, and when the damper (210) rotates relative to the shell (100), the first guide portion (211) can slide along the first guide groove (112).
The fresh air device according to claim 6, characterized in that the damper (210) is attached to the outer surface of the housing (100), and the damper assembly (200) further comprises a pressing member (230), the pressing member (230) is arranged on a side of the damper (210) away from the housing (100) and connected to the housing (100), and the pressing member (230) is used to For limiting the damper (210) from moving in a direction away from the housing (100).
The fresh air device according to any one of claims 1 to 8 is characterized in that the indoor air inlet includes a dirty air inlet (101) and a purified air inlet (102), and the damper (210) can block one of the dirty air inlet (101) and the purified air inlet (102) or simultaneously block the dirty air inlet (101) and the purified air inlet (102) under the drive of the driving member (220).
The fresh air device according to claim 1 is characterized in that the shell (100) includes a fresh air cover (110), a fresh air box (120) and a fan casing (130) arranged in sequence, the fresh air cover (110) and the fresh air box (120) form a first chamber (105), the fan casing (130) forms a second chamber (106), and the fan (300) is arranged in the second chamber (106); it also includes an air valve (400) and a fresh air outlet (411), the air valve (400) is connected to the shell (100), and is connected to the first chamber (105) and the second chamber (106), the fresh air outlet (411) is arranged on the air valve (400), and the fan casing (130) is provided with an indoor air outlet (103).
The fresh air device according to claim 10 is characterized in that the air valve (400) includes a valve bracket (410), a first door plate (420), a second door plate (430), a first motor (421), and a second motor (431); a fresh air outlet (411), a first opening, and a second opening are formed on the valve bracket (410); the first opening is used to communicate with the first chamber (105), and the second opening is used to communicate with the second chamber (106); the first motor (421) is used to drive the first door plate (420) to flip to open or close the first opening; the second motor (431) is used to drive the second door plate (430) to flip to open or close the second opening, and the second door plate (430) blocks the air from the indoor air outlet (103) while opening the second opening.
An air conditioner, characterized in that it comprises an air conditioner main body and a fresh air device (010) according to any one of claims 1 to 11, wherein the fresh air device (010) is connected to the air conditioner main body.