Indoor air exchange device and air conditioner

Abstract

The present application relates to the field of air purification, and particularly relates to an indoor air exchange device and an air conditioner, which comprises a centrifugal fan with an axial air inlet, a fresh air outlet and an exhaust air outlet; a shell with a fresh air inlet, an exhaust air inlet and an air outlet; the air outlet is communicated with the axial air inlet, and the fresh air inlet is provided with a fresh air channel between the air outlet; the fresh air channel and the fresh air outlet are opened, the exhaust air inlet and the exhaust air outlet are closed, so that the indoor air exchange device is in a fresh air mode; the fresh air inlet and the fresh air channel are closed, the exhaust air inlet and the exhaust air outlet are opened, so that the indoor air exchange device is in an exhaust air mode; the exhaust air inlet is always communicated with the air outlet, the air outlet is communicated with the axial air inlet, and the exhaust air outlet is communicated with the fresh air inlet and leads to the outdoor through the same fresh air pipeline, so as to solve the technical problems that the fresh air system and the exhaust air system of the existing indoor air exchange device are respectively provided with ventilation pipelines leading to the outdoor, so that the occupied space is large and the installation cost is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air purification, in particular to an indoor air exchange device and an air conditioner. BACKGROUND

[0002] The existing indoor air exchange device can only take in air or exhaust air, and the indoor air circulation efficiency is not high, and a large indoor space is occupied. If an air inlet device and an air outlet device are installed respectively, the air inlet and air outlet pipelines are arranged separately, two holes are needed to be opened on the wall, one for air inlet and one for air outlet. Not only the space is occupied, but also a large amount of equipment and installation cost is spent, and it is not beautiful.

[0003] At present, there is no good solution to the above technical problems. SUMMARY

[0004] In order to solve the technical problems of the existing indoor air exchange device, such as the new air system and the exhaust system being arranged with separate pipelines leading to the outdoor, occupying a large space, and high installation cost, an indoor air exchange device and an air conditioner are provided.

[0005] On the one hand, the indoor air exchange device comprises:

[0006] A centrifugal fan having an axial air inlet, a fresh air outlet and an exhaust air outlet;

[0007] A housing arranged on one side of the centrifugal fan having the axial air inlet and fixedly connected with the centrifugal fan; the housing has a fresh air inlet, an exhaust air inlet and an air outlet;

[0008] The air outlet is in communication with the axial air inlet, and a fresh air channel is arranged between the fresh air inlet and the air outlet; the fresh air channel and the fresh air outlet are opened, and the exhaust air inlet and the exhaust air outlet are closed, so that the indoor air exchange device is in a fresh air mode; the fresh air inlet and the fresh air channel are closed, and the exhaust air inlet and the exhaust air outlet are opened, so that the indoor air exchange device is in an exhaust air mode;

[0009] The exhaust air inlet is always in communication with the air outlet, the air outlet is in communication with the axial air inlet, and the exhaust air outlet is in communication with the fresh air inlet and leads to the outdoor through the same fresh air pipeline.

[0010] Preferably, the fresh air outlet is provided with a fresh air first baffle for opening or closing the fresh air outlet, and the exhaust air outlet is provided with an exhaust air first baffle for opening or closing the exhaust air outlet; the fresh air first baffle and the exhaust air first baffle are driven by a first driving device;

[0011] And / or,

[0012] The fresh air channel is provided with a fresh air second baffle for opening or closing the fresh air channel, and the exhaust air inlet is provided with an exhaust air second baffle for opening or closing the exhaust air inlet; the fresh air second baffle and the exhaust air second baffle are driven by a second driving device.

[0013] Preferably, the centrifugal fan comprises a volute and an impeller arranged in the volute.

[0014] The fresh air outlet and the exhaust air outlet are located on the circumference of the volute, and the fresh air first baffle and the exhaust air first baffle are both arranged on the volute and can simultaneously move along the circumference of the volute.

[0015] And / or,

[0016] The fresh air second baffle can drive the exhaust air second baffle to move simultaneously.

[0017] Preferably, the fresh air first baffle and the exhaust air first baffle are arcs extending along the circumference of the impeller and curved towards the rotation center of the impeller.

[0018] Preferably, the air inlet is located on the first end surface of the volute, and the second end surface of the volute is provided with a fresh air swing rod and an exhaust air swing rod; the first end of the fresh air swing rod is hinged to the volute, and the second end of the fresh air swing rod is fixedly connected with the fresh air first baffle.

[0019] The first end of the exhaust air swing rod is hinged to the volute, and the second end of the exhaust air swing rod is fixedly connected with the exhaust air first baffle; the fresh air swing rod and the exhaust air swing rod can simultaneously swing around their respective hinged ends.

[0020] Preferably, the first end of the fresh air swing rod is provided with a fresh air gear, and the axis of the fresh air gear coincides with the swing axis of the fresh air swing rod; the first end of the exhaust air swing rod is provided with an exhaust air gear, and the axis of the exhaust air gear coincides with the swing axis of the exhaust air swing rod; the fresh air gear and the exhaust air gear are meshed with each other.

[0021] Preferably, a sliding groove is arranged on the fresh air swing rod or the exhaust air swing rod, a first motor is arranged on the volute, a first connecting rod is fixedly arranged on the output shaft of the first motor, and the first connecting rod is slidingly connected with the fresh air swing rod or the exhaust air swing rod through the sliding groove.

[0022] Preferably, the first end of the fresh air second baffle is hinged to the shell, and the first end of the exhaust air second baffle is hinged to the shell.

[0023] The second connecting rod is fixedly connected with the fresh air second baffle, and a sliding rail is arranged on the exhaust air second baffle.

[0024] Preferably, the sliding rail comprises oppositely arranged first and second grooves, and the length direction of the first and second grooves is perpendicular to the rotation axis of the exhaust air second baffle.

[0025] The first end of the second connecting rod is fixedly connected with the fresh air second baffle, the second end of the second connecting rod is provided with a sliding rod, the sliding rod is parallel to the rotation axis of the fresh air second baffle, and the two ends of the sliding rod are slidably arranged in the first and second grooves, respectively.

[0026] Preferably, a filtering assembly is arranged in the fresh air channel, and the fresh air second baffle can close the fresh air channel when the fresh air second baffle is rotated to cover the filtering assembly.

[0027] In another aspect, the application further provides an air conditioner comprising an indoor unit and the indoor air exchange device.

[0028] The application simplifies the mutual flow structure of the indoor air exchange device and outdoor air, facilitates installation and production, and reduces the installation cost and improves the indoor aesthetics and user experience. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a shell structure schematic diagram when the exhaust air inlet of the embodiment of the application is closed.

[0030] Figure 2 It is a shell structure schematic diagram when the exhaust air inlet of the embodiment of the application is opened.

[0031] Figure 3 It is a first perspective view of the air exchange device of the embodiment of the application.

[0032] Figure 4 It is a second perspective view of the air exchange device of the embodiment of the application.

[0033] Figure 5 It is a sectional view when the fresh air channel of the air exchange device of the embodiment of the application is closed.

[0034] Figure 6 It is a sectional view when the fresh air channel of the air exchange device of the embodiment of the application is opened.

[0035] Figure 7A cross-sectional view of the shell of the embodiment of the present application when the fresh air channel is closed;

[0036] Figure 8 A schematic view of the relationship between the fresh air first baffle and the exhaust air first baffle of the embodiment of the present application;

[0037] Figure 9 A first perspective schematic view of the fresh air first baffle of the embodiment of the present application when the fresh air outlet is opened;

[0038] Figure 10 A second perspective schematic view of the fresh air first baffle of the embodiment of the present application when the fresh air outlet is opened;

[0039] Figure 11 A first perspective schematic view of the fresh air first baffle of the embodiment of the present application when the fresh air outlet is closed;

[0040] Figure 12 A second perspective schematic view of the fresh air first baffle of the embodiment of the present application when the fresh air outlet is closed;

[0041] Figure 13 A schematic view of the relationship between the fresh air first baffle and the exhaust air first baffle of the embodiment of the present application.

[0042] The reference signs are as follows:

[0043] 1, centrifugal fan; 100, sliding rail; 1001, first groove; 1002, second groove; 2, volute; 200, filter assembly; 201, fresh air outlet; 202, exhaust air outlet; 203, volute cover; 3, shell; 300, fresh air pipeline; 301, fresh air inlet; 302, exhaust air inlet; 4, fresh air channel; 400, impeller; 501, fresh air first baffle; 502, exhaust air first baffle; 503, fresh air second baffle; 504, exhaust air second baffle; 601, fresh air swing rod; 602, exhaust air swing rod; 701, fresh air gear; 702, exhaust air gear; 703, fixed plate; 901, first motor; 902, second motor; 8, sliding groove; 801, first connecting rod; 802, second connecting rod; 8023, sliding rod; 8021, first stop ring; 8022, second stop ring. DETAILED DESCRIPTION

[0044] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0045] The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the description of the application and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be understood that the terms "and / or", "at least one of", "one or more of", and "and / or at least one of", used herein in the description and in the claims, are open-ended expressions that are intended to mean that there is at least one, but it is also possible that more than one, of a particular listing of items. "About" is used herein to indicate that a value includes the standard half- value for the type of measurement provided, and is not a precise value.

[0046] It should be understood that the term "and / or" used herein only describes an association relationship of associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A existing alone, A and B existing together, and B existing alone. In addition, the character " / " in the text generally represents that the front and rear associated objects are in an "or" relationship; "first", "second" in the text are only to distinguish different technical features, and not have a sequence; "upper", "lower", "front", "back" in the text are only to make the position relationship of the technical features more convenient to explain, and have certain meaning only in combination with actual use conditions or in combination with the specific position description in the preceding text, and not an absolute position relationship.

[0047] It should also be noted that the terms "comprising", "containing", or any other variant thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such product or system. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the product or system including the element.

[0048] The application relates to the field of air purification, and in particular to an indoor air exchange device and an air conditioner.

[0049] The existing indoor air exchange device can only take in air or exhaust air, and the indoor air circulation efficiency is not high, and a large indoor space needs to be occupied. If an air inlet device and an air outlet device are respectively installed, air inlet and air outlet pipelines are separately arranged, two holes need to be opened on a wall, one for air inlet and the other for air outlet. Not only space is occupied, but also a large amount of equipment and installation costs are spent, and the device is not beautiful.

[0050] The application provides an indoor air exchange device and an air conditioner. Figures 1-13 As shown in the figure, the device comprises:

[0051] A centrifugal fan 1 has an axial air inlet, a fresh air outlet 201 and an exhaust air outlet 202;

[0052] A shell 3 is arranged on the side of the centrifugal fan 1 having the axial air inlet and is fixedly connected with the centrifugal fan 1. The shell 3 has a fresh air inlet 301, an exhaust air inlet 302 and an air outlet.

[0053] The air outlet is communicated with the axial air inlet, and the fresh air channel 4 is arranged between the fresh air inlet 301 and the air outlet; the fresh air channel 4 and the fresh air outlet 201 are opened, the exhaust air inlet 302 and the exhaust air outlet 202 are closed, so that the indoor air exchange device is in a fresh air mode; the fresh air inlet 301 and the fresh air channel 4 are closed, the exhaust air inlet 302 and the exhaust air outlet 202 are opened, so that the indoor air exchange device is in an exhaust air mode; the exhaust air inlet 302 is always communicated with the air outlet, the air outlet is communicated with the axial air inlet, and the exhaust air outlet 202 is communicated with the fresh air inlet 301 and leads to the outdoor through the same fresh air pipeline 300.

[0054] The indoor air exchange device provided by the application comprises a fresh air inlet function and an indoor exhaust air function, is installed as a whole in an indoor space, saves space, and reduces installation cost.

[0055] When the device is in the fresh air mode, the fresh air inlet 301 and the fresh air channel 4 are opened, the exhaust air inlet 302 and the exhaust air outlet 202 are closed, the impeller 400 rotates, outdoor air enters the fresh air channel 4 through the fresh air inlet 301 and then flows through the air outlet and the axial air inlet in sequence and is discharged through the fresh air outlet 201; when the device is in the exhaust air mode, the impeller 400 rotates, the fresh air inlet 301 and the fresh air channel 4 are closed, the exhaust air inlet 302 and the exhaust air outlet 202 are opened, indoor air enters the shell 3 through the exhaust air inlet 302 and then flows through the axial air inlet and the exhaust air outlet 202 in sequence and is discharged to the outdoor through the fresh air inlet 301. One device realizes the fresh air mode and the exhaust air mode, reduces the overall volume, and reduces the installation cost. Since the exhaust air outlet 202 and the fresh air outlet 201 are communicated, the exhaust air outlet 202 and the fresh air outlet 201 can be communicated through the same pipeline and lead to the outdoor. In the exhaust air mode, indoor air is discharged to the outdoor through the fresh air outlet 201, so that the indoor air exchange device only needs to punch one hole in the wall during installation, and the fresh air inlet 301 and the exhaust air outlet 202 do not need to punch one hole each. This not only makes installation more convenient, but also helps to make the indoor space more beautiful.

[0056] The fresh air pipeline 300 is arranged at the fresh air inlet 301, the fresh air pipeline 300 penetrates through the wall and leads to the outdoor, so as to equivalently arrange the fresh air inlet 301 outdoors, and facilitate outdoor air to enter the indoor air exchange device.

[0057] Preferably, as shown in FIGS. 8 and Figure 13 Preferably, as shown in FIGS. 8 and

[0058] Preferably, as shown in FIGS. 8 and

[0059] The fresh air second baffle 503 is arranged in the fresh air channel 4 and is used to open or close the fresh air channel 4, and the exhaust air inlet 302 is provided with an exhaust air second baffle 504 used to open or close the exhaust air inlet 302; the fresh air second baffle 503 and the exhaust air second baffle 504 are driven by a second driving device.

[0060] The fresh air outlet 201 is opened and closed by the fresh air first baffle 501, and the exhaust air outlet 202 is opened and closed by the exhaust air first baffle 502; the fresh air first baffle 501 and the exhaust air first baffle 502 are simultaneously driven by the same driving device, i.e., the first driving device, so that the synchronization of the movement of the fresh air first baffle 501 and the exhaust air first baffle 502 is improved, and the efficiency is improved.

[0061] The fresh air second baffle 503 is arranged in the fresh air channel 4 and is used to open or close the fresh air channel 4, and the exhaust air second baffle 504 is arranged in the exhaust air inlet 302 and is used to open or close the exhaust air inlet 302; the fresh air second baffle 503 and the exhaust air second baffle 504 are simultaneously driven by the same driving device, i.e., the second driving device, so that the synchronization of the movement of the fresh air second baffle 503 and the exhaust air second baffle 504 is improved, and the efficiency is improved.

[0062] Compared with the mode in which one driving device is arranged for each baffle, the mode reduces the driving devices, makes the structure relatively simple, makes the maintenance more convenient, and reduces the failure probability and the production cost.

[0063] Since one baffle is arranged for each inlet and outlet, the fresh air channel 4 and the exhaust air inlet 302 can be simultaneously closed, and the exhaust air outlet 202 can be opened, so that the indoor air exchange device forms a negative pressure, dust in the indoor air exchange device is discharged to the outside under the action of the negative pressure, and the indoor air exchange device is cleaned to a certain extent; the dust is prevented from entering the small gaps in the indoor air exchange device and causing abrasion or even jamming of the parts that need to be moved; then the fresh air outlet 201 and the exhaust air outlet 202 are simultaneously closed, so that the indoor air exchange device forms a positive pressure, and the lubricating oil at the rotating part flows inward under the action of the positive pressure, so that the loss of the lubricating oil is avoided, the friction is reduced, the service life is prolonged, and the noise is reduced.

[0064] Preferably, as shown in Figure 10 the centrifugal fan 1 comprises a volute 2 and an impeller 400 arranged in the volute 2;

[0065] The fresh air outlet 201 and the exhaust air outlet 202 are located in the circumferential direction of the volute 2, and the fresh air first baffle 501 and the exhaust air first baffle 502 are arranged on the volute 2 and can simultaneously move along the circumferential direction of the volute 2;

[0066] and / or, as shown in Figure 13 ,

[0067] The fresh air second baffle 503 is capable of driving the exhaust air second baffle 504 to move simultaneously.

[0068] The fresh air first baffle 501 and the exhaust air first baffle 502 move along the circumference of the volute 2 simultaneously, which is conducive to reducing the size of the air exchange device and reducing the occupation of the indoor space, and the air exchange device can be arranged at a higher position in the indoor space, thereby avoiding the influence of the air exchange device on the activities of the indoor personnel; no matter in the fresh air mode or the exhaust air mode, the airflow always enters the volute 2 from the axial air inlet, and the simultaneous movement of the fresh air first baffle 501 and the exhaust air first baffle 502 can avoid the simultaneous closing of the fresh air outlet 201 and the exhaust air outlet 202, thereby avoiding the decrease of the sealing performance of the volute 2 caused by the excessively high air pressure in the volute, and avoiding the increase of the friction caused by the dust from the outside entering the friction surface at the rotating center of the impeller 400 due to the excessively high air pressure. The fresh air first baffle 501 and the exhaust air first baffle 502 can rotate in the same direction or in the opposite direction.

[0069] The second driving device drives the fresh air second baffle 503 to move, and the fresh air second baffle 503 drives the exhaust air second baffle 504 to move, which is equivalent to that the second driving device simultaneously drives the fresh air second baffle 503 and the exhaust air second baffle 504 to move, so that the two baffles can move synchronously, and the power source can be reduced, that is, only one power source is needed to drive the fresh air second baffle 503 and the exhaust air second baffle 504, which simplifies the structure and reduces the cost; and the situation that the lubricating oil at the rotating center of the impeller 400 overflows outward due to the negative pressure in the volute 2 caused by the simultaneous closing of the fresh air channel 4 and the exhaust air inlet 302 is avoided, and the noise and the decrease of the service life caused by the lubricating oil overflow are avoided, and the lubricating oil may enter the indoor space along with the airflow in the fresh air mode, which may cause pollution in the indoor space.

[0070] Preferably, as shown in Figure 10 and Figure 12 The fresh air first baffle 501 and the exhaust air first baffle 502 are arc-shaped and extend along the circumference of the impeller 400 and curve towards the rotating center of the impeller 400.

[0071] When the fresh air first baffle 501 closes the fresh air outlet 201 or the exhaust air first baffle 502 closes the exhaust air outlet 202, part of the arc-shaped baffle extends into the inside of the volute 2, and the arc-shaped baffle and the circumferential inner wall of the volute 2 can form an arc surface connection, which helps the cavity to flow more smoothly in the volute 2, effectively improving the air volume; the movement of the arc-shaped fresh air first baffle 501 and the exhaust air first baffle 502 along the circumference of the volute 2 reduces the occupation of the space by the baffles, so that the overall size of the centrifugal fan 1 is smaller, and the sealing performance and the usability are better. The volute 2 comprises a volute cover 203.

[0072] Preferably, as shown in Figure 9 and Figure 11As shown, the air inlet is located on the first end surface of the volute 2, and the second end surface of the volute 2 is provided with a fresh air swing rod 601 and an exhaust air swing rod 602; the first end of the fresh air swing rod 601 is hinged to the volute 2, and the second end of the fresh air swing rod 601 is fixedly connected to the fresh air first baffle 501;

[0073] The first end of the exhaust swing arm 602 is hinged on the volute 2, and the second end of the exhaust swing arm 602 is fixedly connected to the exhaust first baffle 502; the fresh air swing arm 601 and the exhaust swing arm 602 can swing around their respective hinged ends at the same time.

[0074] The hinged arrangement of the fresh air swing lever 601 and the exhaust air swing lever 602 on the volute 2 facilitates control of the fresh air first baffle 501 and the exhaust air first baffle 502. The two swing levers are arranged on the second end surface without affecting the air inlet provided on the first end surface. The fresh air swing lever 601 and the exhaust air swing lever 602 can swing simultaneously in the forward or reverse direction around their respective hinge points, or one can rotate simultaneously in the forward direction and the other in the reverse direction.

[0075] For example, in the fresh air mode, the fresh air swing arm 601 rotates forward to open the fresh air outlet 201, and the exhaust air swing arm 602 rotates backward to close the exhaust air outlet 202; in the exhaust mode, the fresh air swing arm 601 rotates backward to close the fresh air outlet 201, and the exhaust air swing arm 602 rotates forward to open the exhaust air outlet 202.

[0076] Preferably, Figure 11 and Figure 13 As shown, the first end of the fresh air swing arm 601 is provided with a fresh air gear 701, and the axis of the fresh air gear 701 coincides with the swing axis of the fresh air swing arm 601; the first end of the exhaust air swing arm 602 is provided with an exhaust air gear 702, and the axis of the exhaust air gear 702 coincides with the swing axis of the exhaust air swing arm 602; the fresh air gear 701 and the exhaust air gear 702 are engaged with each other.

[0077] The meshing of the fresh air gear 701 and the exhaust gear 702 causes the fresh air swing arm 601 and the exhaust swing arm 602 to swing in opposite directions, thereby opening or closing the fresh air outlet 201 and the exhaust outlet 202. The meshing of the gears can more stably drive the two swing arms to swing, preventing the first fresh air baffle 501 or the first exhaust baffle 502 from vibrating when the gas flows within the volute 2, causing the first fresh air baffle 501 and the first exhaust baffle 502 to be unable to stably maintain the required position. A fixing plate 703 is provided on the fresh air gear 701 and the exhaust gear 702, and the two ends of the fixing plate 703 are connected to the housing 3 by screws, thereby fixing the two ends of the two gears and improving the stability of the gears.

[0078] Preferably, Figure 13As shown, the fresh air swing rod 601 or the exhaust air swing rod 602 is provided with a sliding groove 8, the volute 2 is provided with a first motor 901, a first connecting rod 801 is fixedly arranged on the output shaft of the first motor 901, and the first connecting rod 801 is slidably connected with the fresh air swing rod 601 or the exhaust air swing rod 602 through the sliding groove 8.

[0079] The first motor 901 works, the output shaft of the first motor 901 drives the first connecting rod 801 to rotate, and the first connecting rod 801 drives the fresh air swing rod 601 or the exhaust air swing rod 602 to swing through the sliding groove 8; through the above driving mode, only one motor is needed to complete the swinging of the two swing rods, the number of motors is saved, and the cost is reduced; through the sliding cooperation of the first connecting rod 801 and the sliding groove 8, the driving mode is relatively simple, and the stability of driving is improved.

[0080] Preferably, as shown in the drawings, Figure 8 As shown, the first end of the fresh air second baffle 503 is hinged to the shell 3, and the first end of the exhaust air second baffle 504 is hinged to the shell 3.

[0081] The fresh air second baffle 503 is fixedly connected with a second connecting rod 802, and the exhaust air second baffle 504 is provided with a sliding rail 100; the second connecting rod 802 is slidably connected with the exhaust air second baffle 504 through the sliding rail 100.

[0082] The second motor 902 can be arranged to drive the fresh air second baffle 503 to rotate, the fresh air second baffle 503 drives the second connecting rod 802 to move while rotating, and the second connecting rod 802 drives the exhaust air second baffle 504 to rotate through the sliding rail 100; this driving mode simplifies the driving structure, and only one motor is needed to complete the driving of the fresh air second baffle 503 and the exhaust air second baffle 504, thereby saving the cost and facilitating maintenance.

[0083] Preferably, as shown in the drawings, Figure 8 As shown, the sliding rail 100 includes oppositely arranged first and second recesses 1001 and 1002, and the length direction of the first and second recesses 1001 and 1002 is perpendicular to the rotation axis of the exhaust air second baffle 504.

[0084] The first end of the second connecting rod is fixedly connected with the fresh air second baffle 503, the second end of the second connecting rod is provided with a sliding rod 8023, the sliding rod 8023 is parallel to the rotation axis of the fresh air second baffle 503, and the two ends of the sliding rod 8023 are slidably arranged in the first and second recesses 1001 and 1002.

[0085] The axial direction of the sliding rod 8023 is limited by the first groove 1001 and the second groove 1002, so that the sliding rod 8023 stably slides, the second connecting rod is prevented from being bent, the sliding rod 8023 smoothly changes, and the air exhaust second baffle 504 is driven to smoothly rotate; the length direction of the first groove 1001 and the second groove 1002 is perpendicular to the rotating axis of the air exhaust second baffle 504, and the sliding rod 8023 is parallel to the rotating axis of the fresh air baffle, so that the rotating axis of the fresh air second baffle 503 is parallel to the rotating axis of the air exhaust second baffle 504, the fresh air second baffle 503 can smoothly drive the air exhaust second baffle 504 to rotate when the fresh air second baffle 503 rotates, and noise and vibration are avoided during switching between the fresh air mode and the air exhaust mode. The first stop ring 5021 and the second stop ring 8022 can be arranged at the axial direction of the sliding rod 8023, the sliding rod 8023 is limited in the axial direction by the two stop rings, and the sliding rod 8023 is further caused to stably slide in the first groove 1001 and the second groove 1002.

[0086] Preferably, as shown in the drawings, Figures 5-7 The fresh air channel 4 is provided with the filter assembly 200, and the fresh air second baffle 503 covers the filter assembly 200 to close the fresh air channel 4.

[0087] The filter assembly 200 is arranged to purify the air entering the room from the outside, can filter PM2.5 and odor gas, and improves the air quality. The fresh air second baffle 503 covers the filter assembly 200 to close the fresh air channel 4, and the fresh air second baffle 503 is reversely rotated to separate from the filter assembly 200 to open the fresh air channel 4.

[0088] The filter assembly 200 and the fresh air channel 4 need to be sealed to prevent air from entering the room through the gap between the filter assembly 200 and the fresh air channel 4. In order to seal, the edge of the filter assembly 200 needs to be sealingly connected with the inner wall of the fresh air channel 4 and does not have a filtering function, that is, the edge of the filter assembly 200 is a dense structure and does not filter. Since the fresh air second baffle 503 needs to rotate, a gap is arranged between the edge of the fresh air second baffle 503 and the inner wall of the fresh air channel 4, and air can enter the room through the gap. When the fresh air second baffle 503 covers the filter assembly 200, the edge of the fresh air second baffle 503 is in contact with the edge of the filter assembly 200 to seal and close the fresh air channel 4. That is, the filter assembly 200 can not only filter air but also cooperate with the fresh air second baffle 503 to close the fresh air channel 4.

[0089] The application also provides an air conditioner, which comprises the indoor air exchange device described above and is arranged in the shell of the indoor unit.

[0090] The indoor air exchange device is arranged in the shell of the indoor unit, so that the indoor appearance is improved, the installation procedure is reduced, and the installation efficiency is improved.

[0091] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application. The above only describes the preferred embodiments of the present application, and it should be noted that, for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and variations can be made, and these improvements and variations shall be considered as the protection scope of the present application.

Claims

1. An indoor air exchange device, characterized by, The utility model relates to an indoor air exchange device, including: A centrifugal fan (1) has an axial air inlet, a fresh air outlet (201) and an exhaust air outlet (202); A shell (3) is arranged at the side of the centrifugal fan (1) with the axial air inlet and is fixedly connected with the centrifugal fan (1), and the shell (3) has a fresh air inlet (301), an exhaust air inlet (302) and an air outlet; The air outlet is communicated with the axial air inlet, a fresh air channel (4) is arranged between the fresh air inlet (301) and the air outlet, the fresh air channel (4) and the fresh air outlet (201) are opened, the exhaust air inlet (302) is closed and the exhaust air outlet (202) is opened, so that the indoor air exchange device is in a fresh air mode; the fresh air inlet (301) and the fresh air channel (4) are closed, the exhaust air inlet (302) is opened and the exhaust air outlet (202) is opened, so that the indoor air exchange device is in an exhaust air mode; The exhaust air inlet (302) is always communicated with the air outlet, the air outlet is communicated with the axial air inlet, the exhaust air outlet (202) is communicated with the fresh air inlet (301) and leads to the outdoor through the same fresh air pipeline (300); The fresh air outlet (201) is provided with a fresh air first baffle (501) for opening or closing the fresh air outlet (201), the exhaust air outlet (202) is provided with an exhaust air first baffle (502) for opening or closing the exhaust air outlet (202), the fresh air first baffle (501) and the exhaust air first baffle (502) are driven by a first driving device; The centrifugal fan (1) comprises a volute (2), the air inlet is located on the first end face of the volute (2), the second end face of the volute (2) is provided with a fresh air swing rod (601) and an exhaust air swing rod (602), the first end of the fresh air swing rod (601) is hinged on the volute (2), and the second end of the fresh air swing rod (601) is fixedly connected with the fresh air first baffle (501); The first end of the exhaust air swing rod (602) is hinged on the volute (2), the second end of the exhaust air swing rod (602) is fixedly connected with the exhaust air first baffle (502), the fresh air swing rod (601) and the exhaust air swing rod (602) can swing simultaneously around the respective hinged ends; The first end of the fresh air swing rod (601) is provided with a fresh air gear (701), the axis of the fresh air gear (701) coincides with the swing axis of the fresh air swing rod (601), the first end of the exhaust air swing rod (602) is provided with an exhaust air gear (702), the axis of the exhaust air gear (702) coincides with the swing axis of the exhaust air swing rod (602), and the fresh air gear (701) and the exhaust air gear (702) are engaged with each other.

2. The indoor air exchange device according to claim 1, characterized in that, The fresh air channel (4) is provided with a fresh air second baffle (503) for opening or closing the fresh air channel (4), and the exhaust air inlet (302) is provided with an exhaust air second baffle (504) for opening or closing the exhaust air inlet (302); the fresh air second baffle (503) and the exhaust air second baffle (504) are driven by a second driving device.

3. The room air exchange device according to claim 2, characterized in that The centrifugal fan (1) comprises an impeller (400) arranged in the volute (2); The fresh air outlet (201) and the exhaust air outlet (202) are located on the circumference of the volute (2), and the fresh air first baffle (501) and the exhaust air first baffle (502) are both arranged on the volute (2) and can simultaneously move along the circumference of the volute (2); And / or, The fresh air second baffle (503) can drive the exhaust air second baffle (504) to move simultaneously.

4. The room air exchange device according to claim 3, characterized in that The fresh air first baffle (501) and the exhaust air first baffle (502) are arcs extending along the circumference of the impeller (400) and curved towards the rotation center of the impeller (400).

5. The apparatus according to claim 1, wherein The fresh air swing rod (601) or the exhaust air swing rod (602) is provided with a sliding groove (8), the volute (2) is provided with a first motor (901), a first connecting rod (801) is fixedly arranged on the output shaft of the first motor (901), and the first connecting rod (801) is slidably connected with the fresh air swing rod (601) or the exhaust air swing rod (602) through the sliding groove (8).

6. The apparatus according to claim 3, wherein The first end of the fresh air second baffle (503) is hingedly connected to the shell (3), and the first end of the exhaust air second baffle (504) is hingedly connected to the shell (3); The fresh air second baffle (503) is fixedly connected with a second connecting rod (802), and the exhaust air second baffle (504) is provided with a sliding rail (100); the second connecting rod (802) is slidably connected with the exhaust air second baffle (504) through the sliding rail (100).

7. The room air exchange device of claim 6, wherein, The sliding rail (100) comprises oppositely arranged first and second grooves, and the length direction of the first and second grooves is perpendicular to the rotation axis of the exhaust air second baffle (504); The first end of the second connecting rod (802) is fixedly connected with the fresh air second baffle (503), the second end of the second connecting rod (802) is provided with a sliding rod (8023), the sliding rod (8023) is parallel to the rotation axis of the fresh air second baffle (503), and the two ends of the sliding rod (8023) are slidably arranged in the first and second grooves, respectively.

8. The air exchange device according to any one of claims 2 to 4, characterized in that The fresh air channel (4) is provided with a filter assembly (200), and the fresh air second baffle (503) can close the fresh air channel (4) when it rotates to cover the filter assembly (200).

9. An air conditioner characterized by comprising: The indoor air exchange device is arranged in the shell of the indoor unit.

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