An air treatment device and a fresh air system

Abstract

The present invention discloses an air treatment device and a fresh air system. The air treatment device includes a housing, a fresh air component, a circulating air component, and a damper component. The damper component includes a partition plate arranged between a fresh air chamber and a circulating air chamber, and an opening and closing damper is arranged on the partition plate. By arranging a partition plate between the fresh air chamber and the circulating air chamber, and arranging an opening and closing damper on the partition plate, different modes are achieved by controlling the opening and closing of the damper and the opening and closing states of a fresh air inlet, a circulating air inlet, a dirty air inlet, a fresh air fan, a circulating air fan, and a dirty air fan. Compared with the prior art, the working modes of the system are increased, and a suitable mode is selected according to different working conditions, thereby improving the working efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of fresh air, and particularly to an air treatment device and a fresh air system. Background Art

[0002] With the improvement of daily consumption levels, energy and the environment have increasingly become the focus of people's attention. Consumers' demands for the environment and energy conservation are constantly increasing, and fresh air fans are equipped in residential and public buildings. A fresh air fan is an effective air purification device that can circulate indoor air. On the one hand, it discharges the dirty air indoors to the outside, and on the other hand, it inputs the fresh air outside into the room after measures such as sterilization, disinfection, and filtration, so that the air in the room is fresh and clean at all times, and functions such as indoor and outdoor air exchange and internal air circulation are realized through a ventilation and air change device. The existing ventilation and air change devices have relatively single functions, and the working efficiency of ventilation and air change can only be improved by increasing the fan. Moreover, in winter, ice is likely to form in the fresh air passage, reducing the working efficiency. Summary of the Invention

[0003] The purpose of the present invention is to provide an air treatment device and a fresh air system to solve the problems existing in the above-mentioned prior art. By setting an openable and closable air door between the fresh air chamber and the circulating air chamber, the working modes of the system are increased, and the working efficiency is higher.

[0004] To achieve the above purpose, the present invention provides the following solution: The present invention provides an air duct mechanism, including:

[0005] A housing, on which an indoor air outlet is provided;

[0006] A fresh air component, including a fresh air inlet provided on the housing. A fresh air passage is communicated between the fresh air inlet and the indoor air outlet, and a fresh air fan is provided in the fresh air passage;

[0007] A circulating air component, including a circulating air inlet provided on the housing. A circulating air passage is communicated between the circulating air inlet and the indoor air outlet, and a circulating air fan is provided in the circulating air passage;

[0008] An air door component, including a partition provided between the fresh air passage and the circulating air passage, and an openable and closable air door is provided on the partition;

[0009] The air treatment device has at least two working modes:

[0010] The first working mode: The air door is in an open state, and the circulating air fan drives the outdoor fresh air to enter the room through the fresh air inlet and the air door;

[0011] Second working mode: The air damper is in an open state, and the fresh air fan drives indoor air to enter the room through the circulating air inlet and the air damper.

[0012] Preferably, the fresh air inlet is communicated with a fresh air chamber, the air inlet of the fresh air fan is arranged in the fresh air chamber, and the air outlet of the fresh air fan is arranged in the fresh air channel; the circulating air inlet is communicated with a circulating air chamber, the air inlet of the circulating air fan is arranged in the circulating air chamber, the air outlet of the circulating air fan is arranged in the circulating air channel, and the partition is arranged between the fresh air chamber and the circulating air chamber.

[0013] Preferably, the air treatment device further includes a dirty air component, the dirty air component includes a dirty air inlet and a dirty air outlet arranged on the housing, a dirty air channel is arranged between the dirty air inlet and the dirty air outlet, the dirty air outlet is communicated with a dirty air chamber, a dirty air fan is arranged in the dirty air chamber, the air inlet of the dirty air fan is arranged in the dirty air chamber, and the air outlet of the dirty air fan is communicated with the dirty air outlet.

[0014] Preferably, the air treatment device further includes a total heat exchange core, and the dirty air channel and the fresh air channel cross through the total heat exchange core.

[0015] Preferably, the air treatment device further includes an air treatment component arranged at the indoor air outlet, and the air treatment component includes one or more of an air filter, a heat exchanger and a purifier.

[0016] Preferably, in the first working mode: the fresh air fan and the circulating air inlet are in a closed state, and the fresh air inlet and the circulating air fan are in an open state.

[0017] Preferably, in the second working mode: the fresh air inlet, the fresh air fan and the circulating air inlet are in an open state, and the circulating fan is in a closed state.

[0018] Preferably, the air treatment device further includes a third working mode: the fresh air inlet is in a closed state, and the air damper, the fresh air fan, the circulating air inlet and the circulating air fan are all in an open state; the fresh air fan and the circulating air fan drive indoor air to enter from the circulating air inlet at the same time, and flow to the indoor air outlet through the fresh air channel and the circulating air channel.

[0019] Preferably, the air treatment device further includes a fourth working mode: the circulating air inlet is in a closed state, and the air damper, the fresh air inlet, the fresh air fan and the circulating air fan are all in an open state; the fresh air fan and the circulating air fan drive outdoor air to enter from the fresh air inlet at the same time, and flow to the indoor air outlet through the fresh air channel and the circulating air channel.

[0020] A fresh air system includes the above-mentioned air treatment device and a negative pressure device; the fresh air inlet is connected to the outside through a pipeline, and an air inlet valve is arranged at the fresh air inlet; the recirculated air inlet is connected to the indoor through a pipeline, and a recirculated air valve is arranged at the recirculated air inlet; several indoor air outlets are provided and are respectively arranged in different rooms.

[0021] The present invention discloses the following technical effects: by arranging a partition between the fresh air cavity and the recirculated air cavity and arranging an opening and closing damper on the partition, compared with the prior art, by controlling the opening and closing of the damper, the recirculation of the recirculated air can be realized through the fresh air fan, and the fresh air can be supplemented into the room through the recirculated air fan. Combining the opening and closing states of the fresh air inlet, the recirculated air inlet, the dirty air inlet, the fresh air fan, the recirculated air fan and the dirty air fan can achieve different modes. Compared with the prior art, the working modes of the system are increased, and the appropriate mode can be selected according to different working conditions, improving the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 It is a schematic structural diagram of the air treatment device of the present invention;

[0024] Figure 2 It is a front view of the air treatment device of the present invention;

[0025] Figure 3 For Figure 2 the A-A cross-sectional view in

[0026] Figure 4 Figure 2 the B-B cross-sectional view in

[0027] Figure 5 Figure 2 the C-C cross-sectional view in

[0028] Figure 6 It is a schematic structural diagram of the air treatment device of the present invention in the first working mode;

[0029] Figure 7 It is a schematic structural diagram of the air treatment device of the present invention in the second working mode;

[0030] Figure 8 It is a schematic structural diagram of the air treatment device of the present invention in the third working mode;

[0031] Figure 9 It is a schematic structural diagram of the air treatment device of the present invention in the fourth working mode;

[0032] Figure 10 It is a schematic structural diagram of the air treatment device of the present invention in the fifth working mode;

[0033] Figure 11 It is a schematic structural diagram of the air damper assembly of the present invention;

[0034] Figure 12 It is a schematic structural diagram of another air damper assembly of the present invention.

[0035] Among them, 1 is the air damper assembly, 11 is the door body, 12 is the door panel, 13 is the drive assembly, 14 is the guide groove, 15 is the fixing plate, 16 is the heat insulation plate, 17 is the partition plate, 18 is the air damper, 19 is the rotating shaft, 2 is the fresh air assembly, 21 is the fresh air inlet, 22 is the fresh air chamber, 23 is the fresh air fan, 24 is the fresh air passage, 3 is the circulating air assembly, 31 is the circulating air inlet, 32 is the circulating air chamber, 33 is the circulating air fan, 34 is the circulating air passage, 4 is the housing, 41 is the indoor air outlet, 5 is the dirty air assembly, 51 is the dirty air inlet, 52 is the dirty air chamber, 53 is the dirty air fan, 54 is the dirty air passage, 55 is the dirty air outlet, 6 is the total heat exchange core, and 7 is the air treatment assembly. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] Referring to Figure 1-11 , the present invention provides an air treatment device, including an air damper assembly 1, a fresh air assembly 2, a circulating air assembly 3, and a housing 4.

[0039] The housing 4 is provided with an indoor air outlet 41 on the housing 4.

[0040] The fresh air assembly 2 includes a fresh air inlet 21 provided on the housing 4. A fresh air passage 24 is communicated between the fresh air inlet 21 and the indoor air outlet 41, and a fresh air fan 23 is provided in the fresh air passage 24.

[0041] The circulating air component 3 includes a circulating air inlet 31 provided on the housing 4. A circulating air passage 34 is connected between the circulating air inlet 31 and the indoor air outlet 41, and a circulating air fan 33 is provided in the circulating air passage 34. The fresh air passage 24 and the circulating air passage 34 are independent passages and are both provided inside the housing 4.

[0042] The air damper component 1 includes a partition 17 provided between the fresh air passage 24 and the circulating air passage 34, and an openable and closable air damper 18 is provided on the partition 17. Whether the fresh air chamber 22 and the circulating air chamber 32 are connected is controlled by the air damper 18.

[0043] In the embodiment, the fresh air inlet 21 is connected to the outdoor environment, and the circulating air inlet 31 is provided in the indoor environment where the air is relatively clean, such as in rooms like the bedroom and the living room.

[0044] In the embodiment, the fresh air inlet 21 is connected to a fresh air chamber 22. The air inlet of the fresh air fan 23 is provided in the fresh air chamber 22, and the air outlet of the fresh air fan 23 is provided in the fresh air passage 24. The fresh air in the fresh air chamber 22 is discharged into the fresh air passage 24 by the fresh air fan 23, so as to realize the air flow in the fresh air passage 24.

[0045] In the embodiment, the circulating air inlet 31 is connected to a circulating air chamber 32. The air inlet of the circulating air fan 33 is provided in the circulating air chamber 32, and the air outlet of the circulating air fan 33 is provided in the circulating air passage 34. The air in the circulating air chamber 32 is discharged into the circulating air passage 34 by the circulating air fan 33, so as to realize the air flow in the circulating air passage 34. First, the fresh air chamber 22 and the circulating air chamber 32 provide an installation space for the fresh air fan 23 and the circulating air fan 33, and at the same time provide sufficient space for the use and installation of the air duct component.

[0046] In the embodiment, the air treatment device further includes a dirty air component 5. The dirty air component 5 includes a dirty air inlet 51 and a dirty air outlet 55 provided on the housing 4. The dirty air inlet 51 is provided in a space with dirty indoor air, such as in rooms like the kitchen and the bathroom. The dirty indoor air is discharged through the dirty air component. A dirty air passage 54 is provided between the dirty air inlet 51 and the dirty air outlet 55. The dirty air outlet 55 is connected to a dirty air chamber 52. A dirty air fan 53 is provided in the dirty air chamber 52. The air inlet of the dirty air fan 53 is provided in the dirty air chamber 52, and the air outlet of the dirty air fan 53 is connected to the dirty air outlet 55. The air treatment device further includes a total heat exchange core 6. The dirty air passage 54 and the fresh air passage 24 cross through the total heat exchange core 6. The dirty air in the dirty air passage 54 and the fresh air in the fresh air passage 24 perform heat exchange in the total heat exchange core 6. In winter, the heat in the indoor high-temperature gas is transferred to the fresh air to perform the first heating of the fresh air, so as to realize the energy recovery in the discharged dirty air and save energy.

[0047] In an embodiment, the air handling device further includes an air handling component 7 disposed at the indoor air outlet 41. The air handling component 7 includes one or more of an air filter, a heat exchanger, and a purifier. The type of the air handling component can be selected according to actual needs, and is not limited to these three devices, namely, the air filter, the heat exchanger, and the purifier. Before the fresh air outdoors and / or the clean air indoors enters the room, it undergoes processes such as disinfection and temperature adjustment through the air handling component 7 and then is discharged into the room. A water collecting tank is provided at the bottom of one side of the dirty air passage 54 in contact with the total heat exchange core 6. A drain port is provided at the bottom of the water collecting tank. The drain port is communicated with a drain pipe in the heat exchanger of the air handling component 7. A water guiding pipe is provided between the drain port and the drain pipe. The water guiding pipe is disposed on a partition inside the device and is used to discharge the water in the dirty air passage 54.

[0048] The air handling device includes the following working modes:

[0049] The first working mode: The fresh air fan 23 and the circulation air inlet 31 are in a closed state, and the air damper 18, the fresh air inlet 21, and the circulation air fan 33 are in an open state. The circulation air fan 33 drives the outdoor fresh air to enter the room through the fresh air inlet 21, the fresh air chamber 22, the air damper 18, and the circulation air chamber 32 under the action of the circulation air fan 33. This mode is the fresh air direct-through mode, which directly passes the fresh air outdoors into the room. It is applicable to the seasons of spring and autumn when the outdoor temperature is appropriate and the air quality is good, without the need to adjust the temperature, without passing through the total heat exchange core 6, reducing the usage rate of the total heat exchange core 6 and increasing the service life of the total heat exchange core 6.

[0050] Second working mode: The air damper 18, the fresh air fan 23, and the fresh air inlet 31 are in the open state, and the circulation fan 33 is in the closed state; the air damper 18 is in the open state, and the fresh air fan 23 drives the indoor air to enter the fresh air cavity 22 through the fresh air inlet 31 and the air damper 18, converges with the fresh outdoor air, enters the fresh air duct 24, and then enters the room. This mode is the total heat exchange core ice melting mode and is applicable to winter; in winter, the outdoor air is cold, and it is easy to freeze at the place where the dirty air duct 54 contacts the total heat exchange core 6, seriously affecting the working efficiency of the total heat exchange core 6 and the discharge of dirty air. The system is switched to the total heat exchange core ice melting mode, and the gas with a certain temperature in the room enters the fresh air cavity 22 through the fresh air opening 31 and the fresh air cavity 32. At this time, the fresh air inlet 21 can be selected to be in a suitable state according to needs. When the icing condition is relatively light, the fresh air inlet 21 can be fully open or wide open; when the icing condition is relatively heavy, the fresh air inlet 21 can be half open or slightly open; when the icing is serious, the fresh air inlet 21 can be completely closed to ensure that the circulating air and the dirty air can completely melt the ice, and at the same time, the air discharge volume of the dirty air fan 53 can be reduced to accelerate the ice melting efficiency and ensure that the total heat exchange core 6 can be in an ice-free state. The water melted from the frost or ice in the dirty air duct 54 is discharged from the dirty air duct 54 through the water collecting tank, the drain port, the water guiding pipe, and the drain pipe in sequence.

[0051] Third working mode: The fresh air inlet 21 is in the closed state, and the air damper 18, the fresh air fan 23, the fresh air inlet 31, and the circulation fan 33 are all in the open state; the fresh air fan 23 and the circulation fan 33 drive the indoor air to enter from the fresh air inlet 31 at the same time, and flow to the indoor air outlet 41 through the fresh air duct 24 and the circulation air duct 34. This mode is the large air volume circulation air mode. The fresh air fan 23 and the circulation fan 33 work at the same time to introduce the clean indoor air into the room through the fresh air inlet 31, improve the efficiency of indoor air circulation, and are applicable to indoor rapid disinfection or aromatherapy and other work that requires rapid circulation of indoor air.

[0052] Fourth working mode: The fresh air inlet 31 is in the closed state, and the air damper 18, the fresh air inlet 21, the fresh air fan 23, and the circulation fan 33 are all in the open state; the fresh air fan 23 and the circulation fan 33 drive the outdoor air to enter from the fresh air inlet 21 at the same time, and flow to the indoor air outlet 41 through the fresh air duct 24 and the circulation air duct 34. The fresh air fan 23 and the circulation fan 33 work at the same time to introduce the clean outdoor air into the room through the fresh air inlet 21, improve the fresh air introduction efficiency, and are applicable to work such as ventilation of new houses and ventilation in spring and autumn that require rapid replacement of indoor air, and are also applicable to rapid indoor re-pressurization.

[0053] Fifth operating mode: The fresh air fan 23 is in a closed state, and the air damper 18, the fresh air inlet 21, the recirculating air inlet 31, and the recirculating air fan 33 are all in an open state. Then, the recirculating air fan 33 can drive both indoor air and outdoor fresh air into the recirculating air duct 34. After the outdoor fresh air and the indoor fresh air are mixed and heat-exchanged in the recirculating air duct 34 and the recirculating air chamber 32, they are introduced into the indoor environment from the indoor air outlet 41, which can reduce the temperature impact at the indoor air outlet 41. Or when there is a heat exchanger in the recirculating air duct 34, the mixed gas of the outdoor fresh air and the indoor fresh air can reduce the temperature impact on the heat exchanger, improving the energy-saving effect. This method is applicable to situations with a relatively small demand for fresh air replenishment.

[0054] When the air damper 18 is in a closed state, it includes a single fresh air mode, a single recirculating air mode, and a fresh air and recirculating air mixed mode.

[0055] Single fresh air mode: The fresh air inlet 21 and the fresh air fan 23 are in an open state, and the recirculating air inlet 31 and the recirculating air fan 33 are in a closed state. The fresh air fan 23 drives outdoor fresh air to enter the room through the fresh air inlet 21, thereby realizing the introduction of outdoor fresh air into the room.

[0056] Single recirculating air mode: The fresh air inlet 21 and the fresh air fan 23 are in a closed state, and the recirculating air inlet 31 and the recirculating air fan 33 are in an open state. The recirculating air fan 33 drives the clean indoor air to enter the room through the recirculating air inlet 31, thereby realizing the circulation of indoor air.

[0057] Fresh air and recirculating air mixed mode: The fresh air inlet 21, the fresh air fan 23, the recirculating air inlet 31, and the recirculating air fan 33 are all in an open state, realizing the internal circulation of indoor air while introducing outdoor fresh air into the room.

[0058] A fresh air system, including the above-mentioned air treatment device and a negative pressure device, can be applied to passive buildings or buildings with good house tightness. The fresh air inlet 21 is connected to the outside through a pipeline, and an air inlet valve is provided at the fresh air inlet 21. The recirculating air inlet 31 is connected to the room through a pipeline, and a recirculating air valve is provided at the recirculating air inlet 31. Several indoor air outlets 41 are provided and are distributed in different rooms. The dirty air inlet 51 is arranged in a space with dirty indoor air, such as rooms like the kitchen and the bathroom. A negative pressure device is provided in rooms like the kitchen and the bathroom. The negative pressure device includes a range hood, an exhaust fan, etc., which can create indoor negative pressure. The dirty air outlet is arranged in this area to exhaust the air in these places.

[0059] When the range hood is turned on, it creates a negative pressure in the kitchen area. It is necessary to recompress the kitchen space. Select the fourth mode and close the dirty air component. Since the range hood and other devices have multiple gears, different degrees of recompression are required. Recompression mode: The dirty air inlet 51, the circulating air inlet 31, and the dirty air fan 53 are in a closed state, and the air damper 18, the fresh air inlet 21, the fresh air fan 23, and the circulating air fan 33 are in an open state. Select the power of the fresh air fan 23 and the circulating air fan 33 according to the gear of the negative pressure device; when the recompression gear is small, only the fresh air fan 23 can work. When the recompression gear is large, open the air damper 18, and the circulating air fan 33 starts at a low gear. When the recompression gear is the largest, the air damper 18 is opened to the maximum, and the fresh air fan 23 and the circulating air fan 33 can operate at high power. Select the appropriate gears of the fresh air fan 23 and the circulating air fan 33 according to the gear of the negative pressure device to compensate for the negative pressure state caused by the recompression device. The fresh air fan 23, the circulating air fan 33, and the dirty air fan 53 can select appropriate powers according to actual needs.

[0060] An air damper assembly for an air handling device, including a circulating air chamber 32, a fresh air chamber 22, and a partition 17 provided between the circulating air chamber 32 and the fresh air chamber 22; an openable and closable air damper 18 is provided on the partition 17; an air damper assembly 1 for connecting or blocking the fresh air chamber 22 and the circulating air chamber 32 is provided on the partition 17;

[0061] The air damper assembly 1 includes a door body 11. The door body 11 includes a first state. In the first state, the door body 11 moves to one side of the partition 17 to open the air damper 18; the door body 11 includes a second state. In the second state, the door body 11 covers the air damper 18 to close the air damper 18; the door body 11 slides and switches from the first state to the second state.

[0062] The door body 11 includes a heat preservation board 16, a door panel 12, and a driving component 13 connected to the door panel 12; the heat preservation board 16 is fixedly arranged on one side of the air damper 18 and cooperates with the door panel 12;

[0063] The driving component 13 includes a driving motor, a reduction gear engaged with the driving motor, a push rod, a lead screw nut, and a guide sleeve installed on the push rod; when the reduction gear is in the forward rotation state of the driving motor, the push rod is connected and drives the door panel 12 to slide to the first state; when the reduction gear is in the reverse rotation state of the driving motor, the push rod is connected and drives the door panel 12 to slide to the second state. The angle between the push rod and the door panel 12 during sliding is a, and its range is 15 degrees > a > 0.5 degrees; the push rod is parallel to the partition 17;

[0064] In this embodiment, driven by the driving motor, after being decelerated by the reduction gear, the lead screw nut drives the push rod to perform linear sliding, and the guide sleeve is used to guide the push rod, converting the rotational motion of the driving motor into a linear motion, and using the forward and reverse rotation of the motor to complete the push rod action.

[0065] Alternatively, the driving component 13 includes a push rod and a cylinder cooperating with the push rod. When the cylinder is in the first pressurized state, the push rod is connected and drives the door panel 12 to slide to the first state; when the cylinder is in the second pressurized state, the push rod is connected and drives the door panel 12 to slide to the second state. The angle between the push rod and the sliding of the door panel 12 is a, and its range is 15 degrees > a > 0.5 degrees; the push rod is parallel to the partition 17.

[0066] In this embodiment, firstly, the accuracy of the cylinder is relatively high, and the cylinder can withstand relatively large forces while maintaining the covering to reduce air leakage. And setting the sliding angle a can increase the force perpendicular to the door body while forming the blocking position.

[0067] In the above two embodiments, each has its own advantages. The cylindrical metal component that performs linear reciprocating motion in the cylinder, the working medium converts heat energy into mechanical energy through expansion in the engine cylinder; the gas is compressed by the piston in the compressor cylinder to increase the pressure.

[0068] The driving motor converts the rotational motion into a linear motion, and at the same time has the best advantages of the driving motor, precise speed control, precise position control, and precise thrust control; but when a linear motion needs to be completed, it needs to be transmitted and converted through mechanical devices such as a toothed belt or a lead screw. Therefore, the structure is relatively complex, and the overload capacity is low. A deceleration device must be used in supporting, and the deceleration reaction is relatively slower than that of the cylinder.

[0069] Alternatively, the driving component 13 includes a driving motor, a rotating shaft 19, a bearing seat and a coupling cooperating with the rotating shaft 19. When the rotating shaft 19 is in the forward rotation state of the driving motor, the rotating shaft 19 is connected and drives the door panel 12 to rotate to the first state; when the rotating shaft 19 is in the reverse rotation state of the driving motor, the rotating shaft 19 is connected and drives the door panel 12 to rotate to the second state. The angle between the rotating shaft 19 and the rotation of the door panel 12 is a, and its range is 90 degrees > a > 0 degrees; the door panel 12 is perpendicular to the partition 17.

[0070] In this embodiment, as Figure 12 , in the first state, the door body 11 covers one side of the partition 17 to close the air damper 18; the door body 11 includes a second state, in which the door body 11 moves to form a 90° angle with the partition 17 to open the air damper 18; the door body 11 rotates and switches from the first state to the second state.

[0071] Furthermore, because the driving component 13 has a relatively large volume and is arranged outside the push rod and the cylinder block, due to the small installation position space, the door panel 12 is designed to be adapted to the shape of the cylinder block, which can make the best use of the cavity space and ensure the sealing structure of the door body.

[0072] In the above embodiment, the door panel 12 is more specifically designed to be flush with the side connected to the rotating shaft 19, and the opposite side is tilted and not restricted by the cylinder body, and extends from the end with a larger space in the cavity to the end with a smaller space in the cavity; when this side of the door panel 12 is not restricted by the cylinder body, the excess end can remove the inclined end and be parallel to the side of the door panel 12 connected to the rotating shaft 19.

[0073] The driving component 13 is fixedly mounted on the partition 17 or fixed on the bottom surface of the air cavity, which is a fresh air cavity 22 or a circulating air cavity 32; the door body 11 is also provided with a guide groove 14 matching with the partition 17 in the sliding direction.

[0074] The guide groove 14 is installed at both ends of the side of the door body 11; the door panel 12 and the insulation board 16 are confined in the guide groove 14 and slidably arranged on the guide groove 14; the insulation board 16 includes insulation cotton and EPDM cotton; the insulation cotton is fixedly arranged in the door panel 12, and the EPDM cotton with resilience is pasted on the contact surface of the door panel 12 and the partition 17.

[0075] The door body 11 further includes fixing plates 15 fixedly installed on two opposite sides thereof; the two fixing plates 15 are vertically spaced apart through the door body 11; and the door body 11 and any fixing plate 15 form an angle of 18°-23°.

[0076] The driving component 13 is electrically driven; the movable end of the push rod is fixedly connected to the door panel 12, the fixed end of the push rod is fixedly mounted on the fixed plate 15, and the fixed end of the push rod and the fixed plate 15 form a yielding section.

[0077] In this embodiment, the electric push rod has the effects of fast control speed, precise positioning and reduced air leakage; and the driving component 13 can also adopt the method of motor-driven gear to set the rack on the door body 11. This structure is easy to implement and has low production cost.

[0078] In this embodiment, because the driving component 13 has a large volume, it is arranged on the outside of the push rod and the cylinder body. Since its installation position has a small space, a make way section is inclined to play the function of making way and accommodating; and the movable end of the push rod matched with the make way section is formed as a guide section.

[0079] In this embodiment, in order to prevent direct heat conduction between the fresh air chamber 22 and the circulating air chamber 32 to prevent condensation or ice from forming, an insulation plate 16 is provided to avoid heat conduction between the two chambers as much as possible when the two chambers are not connected.

[0080] In this embodiment, the door panel 12 and the air outlet are set in a square shape so that they are directly opposite to the fresh air fan 23 and the heat exchange circulation air fan 33, and their air paths will not be changed; the heat exchange efficiency of the two fans is guaranteed, and the practicability is strong.

[0081] In another embodiment, a guide groove 14 is arranged in the circulating air cavity 33. Since the fresh air in the fresh air cavity 23 has different temperatures according to different seasons, due to the characteristics of the fresh air, it is easy to corrode the door panel 12 and the guide groove 14, reducing their service life.

[0082] In another embodiment, to save the overall structural space, it is necessary to ensure that the two fixing plates 15 are parallel to each other, and the angle between the door body and the two fixing plates is adjusted through specific installation dimensions to ensure the cooperation with positions such as the fresh air fan 23 and the heat exchange circulating air fan 33.

[0083] In yet another embodiment, the electric push rod is installed on a fixing plate 15 and fixedly connected to the door panel 12 far from the fixing plate 15;

[0084] Furthermore, to save the installation space, the rod body of the electric push rod is fixedly connected to the door panel 12 through a folding hardware fixing part, and to ensure that the door panel 12 can completely block the air outlet, the installation end is fixedly installed at one end of the door panel 12 farthest from the cylinder body of the electric push rod.

[0085] In one embodiment, an EPDM layer is laid on the inner contact surface of the guide groove 14.

[0086] In another embodiment, an EPDM layer is laid on the contact surface between the door panel 12 and the guide groove 14.

[0087] In yet another embodiment, an EPDM layer is laid on the contact surface between the door body 11 and the guide groove 14.

[0088] Furthermore, the distance between the fresh air fan 23 and the door panel 12 is 6 mm - 8 mm; the fresh air inlet 21 is arranged opposite to the door panel 11.

[0089] In this embodiment, the driving component 13 adopts a DC motor push rod, with a voltage of 12V, a length of 150 mm, and a speed of 15 mm / s.

[0090] The air door assembly 1 drives the door panel to move in the air outlet opened on the door body through the driving component to adjust the size of the air volume flow; through the close cooperation between the heat preservation board and the door panel, the airtightness and heat preservation of the air door assembly are ensured, so that effective heat exchange can be realized in different air cavities, condensation or icing is reduced, the heat exchange efficiency is high, and the service life is long.

[0091] Furthermore, the air volume of the fresh air inlet is controlled by the air inlet valve, and the air volume of the circulating air inlet is controlled by the circulating air valve to cooperate with the individual working processing capacities of the fresh air fan 23 and the circulating air fan 33 and the working processing capacities that need to work together; to ensure the maximum utilization rate of the power of the fresh air fan 23 and the circulating air fan 33 and prevent energy waste.

[0092] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0093] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An air treatment device, characterized in that: Comprising: A housing (4) provided with an indoor air outlet (41) thereon; A fresh air component (2), including a fresh air inlet (21) provided on the housing (4), a fresh air passage (24) communicating between the fresh air inlet (21) and the indoor air outlet (41), and a fresh air fan (23) provided in the fresh air passage (24); A circulating air component (3), including a circulating air inlet (31) provided on the housing (4), a circulating air passage (34) communicating between the circulating air inlet (31) and the indoor air outlet (41), and a circulating air fan (33) provided in the circulating air passage (34); A damper component (1), including a partition (17) provided between the fresh air passage (24) and the circulating air passage (34), and an openable and closable damper (18) provided on the partition (17); The damper component (1) further includes a door body (11). When the door body (11) is in the first state, the door body (11) moves to one side of the partition (17) to open the damper (18); When the door body (11) is in the second state, the door body (11) covers the damper (18); The door body (11) includes a heat preservation board (16), a door panel (12), and a driving component (13) connected to the door panel (12); The heat preservation board (16) is fixedly provided on one side of the damper (18) and cooperates with the door panel (12); The air treatment device at least includes the following working modes: The first working mode: The damper (18) is in an open state, and the circulating air fan (33) drives outdoor fresh air to enter the room through the fresh air inlet (21) and the damper (18); The second working mode: The damper (18) is in an open state, and the fresh air fan (23) drives indoor air to enter the room through the circulating air inlet (31) and the damper (18); The third working mode: The fresh air inlet (21) is in a closed state, and the damper (18), the fresh air fan (23), the circulating air inlet (31), and the circulating air fan (33) are all in an open state; The fresh air fan (23) and the circulating air fan (33) simultaneously drive indoor air to enter from the circulating air inlet (31), and flow through the fresh air passage (24) and the circulating air passage (34) to the indoor air outlet (41).

2. The air treatment device according to claim 1, characterized in that: The fresh air inlet (21) communicates with a fresh air chamber (22), the air inlet of the fresh air fan (23) is provided in the fresh air chamber (22), and the air outlet of the fresh air fan (23) is provided in the fresh air passage (24); The circulating air inlet (31) communicates with a circulating air chamber (32), the air inlet of the circulating air fan (33) is provided in the circulating air chamber (32), the air outlet of the circulating air fan (33) is provided in the circulating air passage (34), and the partition (17) is provided between the fresh air chamber (22) and the circulating air chamber (32).

3. The air treatment device according to claim 1, characterized in that: The air treatment device further includes a dirty air assembly (5). The dirty air assembly (5) includes a dirty air inlet (51) and a dirty air outlet (55) provided on the housing (4). A dirty air passage (54) is provided between the dirty air inlet (51) and the dirty air outlet (55). The dirty air outlet (55) is communicated with a dirty air chamber (52). A dirty air fan (53) is provided in the dirty air chamber (52). The air inlet of the dirty air fan (53) is provided in the dirty air chamber (52), and the air outlet of the dirty air fan (53) is communicated with the dirty air outlet (55).

4. The air treatment device according to claim 3, characterized in that: The air treatment device further includes a total heat exchange core (6). The dirty air passage (54) and the fresh air passage (24) cross through the total heat exchange core (6).

5. The air treatment device according to claim 1, characterized in that: The air treatment device further includes an air treatment assembly (7) provided at the indoor air outlet (41). The air treatment assembly (7) includes one or more of an air filter, a heat exchanger, and a purifier.

6. The air treatment device according to any one of claims 1-5, characterized in that: The first working mode: The fresh air fan (23) and the circulation air inlet (31) are in a closed state, and the fresh air inlet (21) and the circulation air fan (33) are in an open state.

7. The air treatment device according to any one of claims 1-5, characterized in that: The second working mode: The fresh air inlet (21), the fresh air fan (23), and the circulation air inlet (31) are in an open state, and the circulation air fan (33) is in a closed state.

8. The air treatment device according to claim 6, characterized in that: The air treatment device further includes a fourth working mode: The circulation air inlet (31) is in a closed state, and the air damper (18), the fresh air inlet (21), the fresh air fan (23), and the circulation air fan (33) are all in an open state; The fresh air fan (23) and the circulation air fan (33) simultaneously drive outdoor air to enter from the fresh air inlet (21) and flow to the indoor air outlet (41) through the fresh air passage (24) and the circulation air passage (34).

9. A fresh air system, characterized in that: An air treatment device according to any one of claims 1-8 and a negative pressure device; The fresh air inlet (21) is communicated with the outside through a pipeline, and an air inlet valve is provided at the fresh air inlet (21); The circulation air inlet (31) is communicated with the indoor through a pipeline, and a circulation air valve is provided at the circulation air inlet (31); The indoor air outlet (41) is provided with several and is provided in different rooms respectively.

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