CN110701717A - Fresh air device and fresh air exchange air conditioner indoor unit thereof - Google Patents

Abstract

The invention provides a fresh air device and an indoor unit of an air conditioner for replacing fresh air, wherein the fresh air device includes: an air intake module and a fan module communicated with the air intake module, and the air intake module is located below the fan module; wherein the air intake module, An air inlet cavity is defined in the air inlet cavity, and the air inlet cavity is connected with a fresh air inlet duct connected to the outdoor, and the outdoor fresh air enters the air inlet cavity through the fresh air inlet duct; a humidification component is arranged in the air inlet cavity for humidifying the outdoor fresh air; The humidification assembly includes a loop-shaped water trough laterally arranged in the air inlet cavity, and water is injected into the loop-shaped water trough for humidifying the outdoor fresh air; the outer edge of the loop-shaped water trough is fixedly connected with the air inlet cavity. Using the technical solution provided by the present invention, especially when using a fresh air device or an air conditioner in winter, the humidity of the indoor air is increased, and the user comfort is improved.

Description

A fresh air device and its indoor unit for changing fresh air

technical field

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

Background technique

Air conditioners are a kind of household appliances that are widely used. They generally have heating and cooling functions. When the ambient temperature is too low or too high, the temperature of the indoor air is adjusted to provide users with a suitable indoor environment. user's quality of life.

However, since the current air conditioner only circulates the indoor air for heating or cooling during heating or cooling, and at the same time, in order to maintain the indoor temperature, the user will close the door of the room at the same time, so that the indoor air quality will be reduced. will gradually deteriorate, thereby adversely affecting the user's physical health. In particular, air pollution has been increasing in recent years, especially in the winter heating season, people are reluctant to open windows for ventilation. In this way, the indoor air quality will become worse and lower, and the oxygen content will become lower and lower, which will affect physical health.

After the current air conditioner indoor unit is introduced with a fresh air device, when using the fresh air function, especially in winter, users often feel that the indoor air is dry in the house, and the outdoor fresh air introduced by the fresh air device is also relatively dry, which cannot provide users with a better experience.

SUMMARY OF THE INVENTION

One object of the present invention is to provide a fresh air device and an indoor unit of a fresh air air conditioner to solve at least some of the defects existing in the prior art.

A further object of the present invention is to improve indoor air quality.

Another further object of the present invention is to improve user experience. .

In particular, the present invention provides a fresh air device, comprising: an air intake module and a fan module communicated with the air intake module, and the air intake module is located below the fan module; wherein

The air inlet module is defined with an air inlet cavity, and the air inlet cavity is connected with a fresh air inlet pipe connected to the outdoor, and the outdoor fresh air enters the air inlet chamber through the fresh air inlet pipe; fresh air for humidification; and

A fan module, which includes:

A fresh air fan, configured to direct outdoor fresh air from the air inlet module into the fan module and then into the room; and

The volute is arranged outside the fresh air blower, its air inlet is connected to the air inlet cavity, and its air outlet faces the upper part of the fresh air device; wherein

The humidification assembly includes a loop-shaped water tank laterally arranged in the air inlet cavity, and water is injected into the loop-shaped water tank for humidifying the outdoor fresh air;

The outer edge of the back-shaped water tank is fixedly connected with the air inlet cavity.

Preferably, the humidification assembly further comprises a ventilation grille connected to the inner edge of the back-shaped water tank

A water-absorbing and non-water-retaining material connected to a back-shaped water tank is distributed on the ventilation grille.

Preferably, the pore size of the water-absorbing and non-water-retaining material is 1-2 mm, which is used to absorb the water in the water tank to the ventilation grille to humidify the outdoor fresh air.

Preferably, the fresh air device further includes:

The filter assembly, located below the humidification assembly, is used to filter the outdoor fresh air;

The purification component, located above the humidification component, is used to purify the outdoor fresh air.

Preferably, the filter assembly includes a filter screen and a filter bracket for supporting the filter screen;

The filter bracket can be disassembled and horizontally fixed under the back-shaped sink.

Preferably, the purification assembly includes a purification module and a handle connected with the purification module;

The purification module is arranged horizontally above the back-shaped water tank;

The handle is used to push and pull the purification module to move relative to the humidification assembly.

Preferably, there is a gap between the purification module and the ventilation grille.

Preferably, the fresh air device further includes,

an air guide plate, the air guide plate is arranged relative to the air inlet of the air inlet cavity, and the longitudinally divided air inlet cavity is the first air inlet cavity and the second air inlet cavity;

There is a gap between the bottom end of the air deflector and the bottom of the air inlet cavity; after the outdoor fresh air enters the first air inlet chamber, the air deflector changes the flow direction and enters the second air inlet chamber through the gap.

Preferably, the humidification assembly is located in the second air inlet chamber, and one end of the humidification assembly is fixed to the air guide plate;

The bottom end of the filter assembly is on the upper side of the bottom end of the air deflector.

The present invention also provides a fresh air-conditioning indoor unit, comprising:

A casing with a casing air inlet at the rear and at least one casing air outlet at the front; and the above-mentioned fresh air device, located inside the casing, for sending outdoor fresh air into the casing and from the air outlet of the casing Arrange indoors.

In the fresh air device provided by the present invention, since the humidification component is arranged in the air inlet cavity, the outdoor fresh air passes through the air intake cavity and enters the air supply cavity, and the outdoor fresh air is humidified by the humidification component to increase the humidity of the outdoor fresh air entering the room. Especially when using the fresh air device in winter, it can increase the humidity of indoor air and improve user comfort.

Further, a filter assembly and a purification assembly are installed in the fresh air device of the present invention, which can purify the fresh air entering the room, especially now that the air pollution is increasing day by day, the purified air is sent into the room to improve the quality of the indoor air. , reduce the harm of polluted air to the body.

Furthermore, in the fresh air conditioner indoor unit provided by the present invention, since a fresh air device is newly added to the traditional air conditioner indoor unit, during the cooling or heating process of the air conditioner, even if the window is closed, the outdoor air can be introduced into the room through the fresh air device. Provide continuous and fresh air for closed indoor spaces, thereby increasing the oxygen content of indoor air and preventing air-conditioning diseases.

The above and other objects, advantages and features of the present invention will be more apparent to those skilled in the art from the following detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of example and not limitation with reference to the accompanying drawings. The same reference numbers in the figures designate the same or similar parts or parts. It will be understood by those skilled in the art that the drawings are not necessarily to scale. In the attached picture:

1 is an overall schematic structural diagram of an indoor unit of a fresh air conditioner according to an embodiment of the present invention;

Fig. 2 is a longitudinal sectional view of the indoor unit of the fresh air conditioner shown in Fig. 1;

Fig. 3 is the gas flow schematic diagram of the indoor unit of the fresh air conditioner shown in Fig. 2;

Fig. 4 is a schematic structural diagram of the fresh air device of an embodiment shown in Fig. 2;

Fig. 5 is a partial enlarged view of the fresh air device shown in Fig. 4;

6 is a schematic structural diagram of the cooperation between the humidification assembly and the purification assembly;

Fig. 7 is a schematic structural diagram of the humidification assembly of the fresh air device shown in Fig. 4;

FIG. 8 is a schematic structural diagram of the water tank of the humidification assembly shown in FIG. 6 .

Detailed ways

1 is an overall schematic structural diagram of a fresh air conditioner indoor unit 10 according to an embodiment of the present invention; FIG. 2 is a longitudinal cross-sectional view of the fresh air conditioner indoor unit 10 shown in FIG. 1 ; FIG. 3 is a fresh air conditioner shown in FIG. 2 . A schematic diagram of the gas flow of the indoor unit 10 . As can be seen from FIG. 1 , the indoor unit 10 of the fresh air conditioner provided by the present invention not only includes an indoor unit with the same appearance and performance as the prior art, but also includes a fresh air device 200 at its inner bottom. Specifically, according to the analysis of FIGS. 1 to 3 , those skilled in the art can know that the indoor unit 10 includes a casing 100 . A casing air inlet 101 and at least one casing air outlet (102 or 103) are provided thereon. The indoor air is introduced into the indoor unit 10 from the air inlet 101 of the casing through any air supply component, and after heat exchange (cooling or heating) by the heat exchanger 130, the heat-exchanged air is discharged from the air outlet (102) of the casing. Or 103) is introduced into the room, and in such a cycle, when the ambient temperature is too low or too high, the temperature of the indoor air is adjusted to reach the user's preset temperature, providing a suitable indoor environment for the user, and effectively improving the user's quality of life.

Further, at least one air supply assembly is configured to inhale the outdoor fresh air discharged from the fresh air device 200 from the casing 100 and then discharge it from the casing air outlet (102 or 103) to complete the transportation of the outdoor fresh air from the outdoors to the indoors.

Specifically, at least one air supply assembly is provided in the casing 100, wherein preferably, the at least one air supply assembly in the present invention includes a first air supply assembly 110 and a second air supply assembly 120, and the second air supply assembly 120 is arranged in the first air supply assembly 120. Below an air supply assembly 110 . Both the first air supply assembly 110 and the second air supply assembly 120 include a centrifugal fan (111, 121) and a volute (112, 122) disposed outside the centrifugal fan, and the centrifugal fan (111, 121) is configured to be driven from the casing. The air inlet 101 sucks the indoor air and causes it to be sent back into the indoor environment through the air outlet (102 or 103) of the cabinet.

The heat exchanger 130 is arranged on the air inlet main air duct between the volute (112, 122) of the centrifugal fan and the air inlet 101 of the casing, so that the indoor air entering through the air inlet 101 of the casing is heated with the heat exchanger 130. exchange.

At least one casing air outlet (102 or 103) includes a top air outlet 102 and a lower air outlet 103, wherein the top air outlet 102 corresponds to the air outlet of the volute 112 of the first air supply assembly 110, and the lower air outlet 103 corresponds to the second air outlet. The air outlet of the volute 122 of the air supply assembly 120 . The first air supply assembly 110 and the second air supply assembly 120 are configured to facilitate the gas to be transported from the main air duct after heat exchange through the heat exchanger 130, and finally flow to the indoor environment through the top air outlet 102 and the lower air outlet 103 respectively.

In a specific embodiment, FIG. 3 is a schematic diagram of the gas flow of the indoor unit of the fresh air conditioner shown in FIG. 2; the arrows in FIG. 3 show a schematic diagram of the gas flow of the indoor unit 10 of the fresh air conditioner (thick arrows The arrows represent the flow direction of outdoor fresh air), the first air supply assembly 110 and the second air supply assembly 120 may operate simultaneously or independently.

When the first air supply assembly 110 or the second air supply assembly 120 operates alone, the indoor air is sucked into the indoor unit 10 from the air inlet 101 of the casing, and the outdoor fresh air is sucked into the indoor unit 10 from the fresh air device 200, and then the first air supply The component 110 or the second air supply component 120 sends indoor air and outdoor fresh air to the room through the top air outlet 102 or the lower air outlet 103 to complete the air circulation. In this case, the ventilation air volume of the fresh air conditioner indoor unit 10 of the present invention and the cabinet type air conditioner of the prior art are not much different, and the operating capacity is not changed much, but the outdoor fresh air can be delivered to the room, and the real-time update is possible. Indoor air, keep indoor air fresh.

When the first air supply assembly 110 and the second air supply assembly 120 operate at the same time, the centrifugal fans (111, 121) work together to send indoor air and outdoor air to the room through the top air outlet 102 or the lower air outlet 103 respectively, Complete the air circulation flow. When the first air supply assembly 110 and the second air supply assembly 120 operate at the same time, compared with the cabinet type air conditioner in the prior art, the indoor unit 10 of the fresh air conditioner provided by the present invention can realize the upper and lower air supply and the air supply. The ventilation capacity of the indoor unit 10 is increased. On the basis of the increase in the ventilation volume, the fresh air device 200 sends the outdoor fresh air into the indoor unit 10, and then the indoor unit 10 has enough power to send the fresh air into the room. Sending more outdoor fresh air to the room can quickly update the indoor air and improve the quality of the indoor air more effectively and in a timely manner.

In the above embodiment, the specific structure of the fresh air device 200 for replacing the fresh air air conditioner indoor unit 10 is as follows:

FIG. 4 is a schematic structural diagram of the fresh air device 200 according to an embodiment shown in FIG. 2 ; the fresh air device 200 is arranged below the air supply assembly, specifically below the second air supply assembly 120 .

The fresh air device 200 includes an air intake module 210 and a fan module 220. Specifically, in this embodiment, the air intake module is located at the lower part of the fan module, that is, the air intake module 210 and the fan module 220 are distributed up and down inside the casing 100. , and the air inlet module 210 and the fan module 220 are connected up and down.

Further, those skilled in the art can also understand that the distribution positions of the air inlet module 210 and the fan module 220 can be various, such as longitudinal distribution, left and right distribution, in the present invention, the upper and lower distribution is preferred.

Fig. 5 is a partial enlarged view of the fresh air device shown in Fig. 4; Fig. 6 is a schematic structural diagram of the cooperation between the humidification assembly and the purification assembly; Fig. 7 is a schematic diagram of the humidification assembly of the fresh air device shown in Fig. 4; Fig. 8 is shown in Fig. 6 Schematic diagram of the return tank of the humidification assembly.

Specifically, as shown in FIG. 5 , an air intake cavity 211 is defined inside the air intake module 210 , and the air intake cavity 211 is connected to a fresh air intake pipe 212 leading to the outdoors. The outdoor fresh air enters the air inlet cavity 211 from the fresh air inlet duct 212 due to the action of the fan module 220 .

The fan module 220 includes an air supply cavity 221 , a fresh air fan 222 and a volute 223 . The fresh air fan 222 is a centrifugal fan, and the air supply cavity 221 is connected to the air inlet cavity 211 . The air inlet of the volute 223 of the centrifugal fan is communicated with the air inlet cavity 211, and the air outlet 202 thereof faces the upper part of the fresh air device 200. Specifically, in the present invention, the air outlet of the volute faces the top of the casing 100, so that more The air is directly transported to the air inlet of the volute 223 of the air supply assembly; the centrifugal fan is configured to inhale fresh air from the outside of the air inlet chamber 211 and discharge it from the air outlet 202 of the volute 223 to the interior of the casing 100 .

The fresh air device 200 is selected to be installed on the side of the casing air inlet 101 of the indoor unit 10 as soon as possible, so that more fresh air from the outside is mixed with the indoor air and then sent into the room again. .

After the outdoor fresh air is sent to the inside of the casing 100 by the fan module 220, the first air supply assembly 110 and/or the second air supply assembly 120 are sent to the room from the top air outlet 102 and the lower air outlet 103 respectively, so as to be sent indoors. Incoming fresh outdoor fresh air increases the oxygen content of the air in the enclosed room, effectively reducing the chance of users getting air-conditioning diseases.

In some preferred embodiments, the rotation axes of the centrifugal fans (111, 121) of the first air supply assembly 110 and the second air supply assembly 120 are parallel; and the rotation axis of the fresh air fan 222 is parallel to the first air supply assembly 110 and the second The rotation axes of the centrifugal fans (111, 121) of the air supply assembly 120 are vertical. The rotation axes of the centrifugal fans (111, 121) of the first air supply assembly 110 and the second air supply assembly 120 are parallel to reduce the noise of the indoor unit 10 and improve user experience. The distribution of the fresh air blower 222, its rotational axis can be perpendicular to the vertical plane or plane where the rotational axes of the centrifugal blowers (111, 121) of the first air supply assembly 110 and the second air supply assembly 120 are located. , 121) are arranged vertically, so as to save the internal space of the casing 100 . In a specific embodiment of the present invention, the rotation axis of the fresh air fan 222 is perpendicular to the vertical plane where the rotation axes of the centrifugal fans (111, 121) of the first air supply assembly 110 and the second air supply assembly 120 are located.

Further, the radii of the impellers of the centrifugal fans (111, 121) of the first air supply assembly 110 and the second air supply assembly 120 may be the same or different, and the air supply capacity of the first air supply assembly 110 and the second air supply assembly 120 may be the same or different. There is no requirement, it can be the same or not. The second air supply assembly 120 can be an optional air supply assembly. When the air conditioner is initially turned on, the indoor temperature needs to be quickly lowered or raised, and a large air volume needs to be circulated. The second air supply assembly 120 can be turned on to increase the air supply of the indoor unit 10 When the indoor temperature is stable, the second air supply component 120 may not operate, and only the first air supply component 110 can be operated to maintain the indoor temperature stable, so the second air supply component is not required. The air supply capacity of the air assembly 120 is the same as that of the first air supply assembly 110 .

Or, when the indoor air quality is seriously polluted, the oxygen content is low, and the fresh air device 200 needs to be turned on, the second air supply component 120 can be turned on and operated to play the function of auxiliary air supply, so that the indoor air is quickly updated by the outdoor fresh air, In good condition with fast recovery of indoor air quality.

As for the fresh air device 200, in order to prevent the indoor air from being relatively dry when the air conditioner or heating is used for a long time in winter, which is not conducive to the health of the user, the inventor has installed a humidification component 230 in the air inlet cavity of the fresh air device 200, which is used to Humidify with outdoor fresh air.

As shown in FIGS. 6 to 8 , the humidification assembly 230 includes a water tank 231 in the shape of a loop, which is laterally arranged in the air inlet chamber. The humidity of the outdoor fresh air entering the air cavity. The outer edge of the back-shaped water tank 231 is fixedly connected with the air inlet cavity.

In some preferred embodiments, the humidification assembly 230 further includes a ventilation grille 232 connected to the inner edge of the water tank 231, and the ventilation grill 232 is distributed with a water absorbing and non-retaining material communicating with the tank 231. The water-absorbing and non-water-retaining material can absorb water through the internal network, and the water in the water-absorbing and non-water-retaining material on the ventilation grille 232 is taken away by the outdoor fresh air, which is less than the water in the water tank 231, which forms a pressure difference. , the water in the water tank 231 is continuously absorbed.

The pore size of the water-absorbing and non-water-retaining material is 1-2 cm, and is used to absorb the water in the water tank 231 to the ventilation grille 232 to humidify the outdoor fresh air. Preferably, the aperture of the water-absorbing and non-water-retaining material is 2 mm, which not only ensures the humidity at the ventilation grille 232 , fully humidifies the outdoor fresh air, but also ensures that the outdoor fresh air passes through the ventilation grille 232 stably and smoothly. If the aperture is less than 1mm, a large amount of outdoor fresh air will be collected at the ventilation grille 232, and when the pressure reaches a certain level, the connection between the water-absorbing and non-water-retaining material and the water-return tank 231 will be destroyed. When the aperture is larger than 2 mm, the humidification effect is not very significant.

Since the humidification component is arranged in the air inlet cavity, the outdoor fresh air passes through the air inlet cavity and enters the air supply cavity, and the outdoor fresh air is humidified by the humidification component to increase the humidity of the outdoor fresh air entering the room. Especially when using the fresh air device in winter, it can increase the humidity of indoor air and improve user comfort.

In other embodiments, as shown in FIGS. 4 and 5, the fresh air device 200 further includes a filter assembly 240 and a purification assembly 250, wherein the filter assembly 240 is located below the humidification assembly 230, and is used for filtering the outdoor fresh air; purification; The component 250 is located above the humidification component 230 and is used to purify the outdoor fresh air.

In a specific embodiment, the filter assembly 240 includes a filter screen 241 and a filter bracket 242 for supporting the filter screen 241. The filter bracket 242 is detachable and laterally fixed under the water tank 231, so that the outdoor fresh air does not enter the humidification assembly 230. Before filtering the fine sand mixed in the outdoor fresh air. If a lot of fine sand enters the ventilation grille 232 , after being humidified by the humidifying element 230 , it will condense and block the water-absorbing and non-water-retaining materials, and even adhere to the ventilation grille 232 .

In some areas or seasons with good air quality, the filter assembly may not be used, and the filter bracket 242 is set to be detachable and installed, which is convenient for users to operate.

The purification assembly 250 includes a purification module 251 and a handle 252 connected to the purification module 251 . The purification module 251 is laterally arranged above the water tank 231 ; As shown in FIG. 6 , when the purification module 251 needs to be replaced or water needs to be injected into the water tank 231, the user pulls out the purification module 251 through the handle 252 to replace the purification module 251 or inject water into the water tank 231. The structure is simple, User-friendly operation.

In addition, there is a gap between the purification module 251 and the ventilation grille 232. The gap here serves as a buffer for the outdoor fresh air. On the one hand, the outdoor fresh air can be fully humidified at the ventilation grille 232, and on the other hand, the outdoor fresh air can enter uniformly and stably. in the purification module 251.

The purification module 251 can use the strong electric field dielectric technology to purify the air delivered to the room. Specifically, the purification module 251 is an IFD purification device, and IFD is a dust removal technology, which is the most advanced and efficient technology among the existing dust removal technologies, and is extremely effective. Use a strong electric field with a dielectric material as a carrier. The dielectric material forms a honeycomb hollow microchannel, and the dielectric wraps the electrode sheet to form a strong electric field in the channel, which exerts a huge attraction on the charged particles moving in the air, and can absorb almost 100% of the air while only generating the minimum airflow resistance. The moving particles are particularly effective in removing particulate pollutants such as PM2.5. The use of the above purification module 251 can greatly reduce PM2.5 particles in the air in haze weather, and effectively improve the quality of the outdoor air sent into the room.

The purification module 251 can also be filtered by Hypa. Hypa is a high-efficiency filter paper that can filter 99% of fine particles in the air, ensuring that the air output by the fan module 220 is clean and avoiding secondary pollution.

In order to better remove the dust mixed in the outdoor fresh air, the inventor further improved the fresh air device 200, as shown in Figures 3 and 4, and the details are as follows:

The fresh air device 200 further includes an air guide plate 213, and the air guide plate 213 is arranged relative to the air inlet 201 of the air inlet cavity 211. The air guide plate 213 longitudinally divides the air inlet cavity 211 into a first air inlet cavity 211a and a second air inlet cavity 211b; There is a gap between the bottom end of the air deflector 213 and the bottom of the air inlet chamber 211; the humidification assembly 230 is located in the second air inlet chamber, and one end thereof is fixed with the air deflector; the bottom end of the filter assembly 240 is at the bottom of the air deflector top side. After entering the first air inlet chamber 211a, the outdoor fresh air changes the flow direction through the air deflector 213 and enters the second air inlet chamber 211b through the gap.

Specifically, the air guide plate 213 and the rear wall of the air supply cavity 221 are on the same vertical plane; the rear wall of the air supply cavity 221 extends vertically downward to obtain the air guide plate 213 . The air guide plate 213 can be formed together with the air inlet cavity 211 and the air supply cavity 221 of the fresh air device 200 during the manufacturing process, which simplifies and facilitates the manufacturing process.

The air deflector 213 has two functions in this embodiment, one is to shield dust, to prevent the sand and dust in the outdoor fresh air from being directly sucked into the fresh air fan 222 by the fresh air device 200 and damage the blades of the fresh air fan fan The second is to play the role of centrifugal dust reduction. Under the action of the wind deflector 213, the outdoor fresh air enters the air inlet cavity 211 from the fresh air inlet duct 212, and then changes the flow direction to form a circular circulating air intake. The annular air intake can make large particles The material is thrown out under the centrifugal action to prevent large particles from entering the fresh air blower 222, and the two functions jointly ensure the effect of changing the fresh air.

In addition, at the air inlet of the fresh air inlet duct 212, a dust removal net is detachably installed to prevent dust or mosquitoes from entering the fresh air device 200, polluting or destroying the internal structure of the fresh air device 200, and preventing the fresh air device 200 from being lowered to replace the fresh air. the quality of.

In the fresh air device 200 of the present invention, by installing the filter assembly 240 and the purification assembly 250, the fresh air entering the room can be purified, especially now that the air pollution is increasing day by day, the purified air is sent into the room to improve the indoor air quality , reduce the harm of polluted air to the body.

In addition, as mentioned above, the air inlet module 210 and the fan module 220 of the fresh air device 200 of the present invention are distributed up and down, and their function is to utilize the space inside the casing 100 more reasonably. Specifically, the indoor unit 10 for replacing the air conditioner further includes an electrical box 140. As shown in FIG. 3, the electrical box 140 is arranged on the upper part of the fresh air device 200. In order to effectively utilize the limited space inside the casing 100 of the indoor unit 10, the air supply cavity 221 The upper part includes a horizontal section 221a extending backward from the front of the casing 100 and an inclined section 221b extending along the horizontal section 221a and extending upwardly toward the air outlet 202 of the volute 223 of the fresh air fan 222; the electrical box 140 is located on the inclined section 221b .

In general, the electrical boxes 140 are distributed laterally inside the casing 100, however, in the present invention, the electrical boxes 140 are creatively arranged obliquely and fixedly installed on the inclined section 221b of the air supply cavity 221 of the fresh air device 200 to supply air. The cavity 221 further acts as a support, reducing the fixed structure of the original electrical box 140, so that more space inside the casing 100 is used for gas circulation. Therefore, the indoor unit 10 of the fresh air conditioner provided by the present invention not only has sufficient The power of the fan drives the outdoor fresh air to flow, and there is enough space for the outdoor fresh air to enter the interior of the indoor unit 10 .

Furthermore, the electrical box 140 is inclined, and the interior of the electrical box 140 faces the front of the casing 100, and the wiring groove of the electrical box 140 is close to the front column of the cabinet air conditioner, which facilitates the maintenance and wiring, and not only improves the production of the production line Efficiency, and it is also convenient for after-sales personnel to check and maintain.

The fresh air device 200 in each of the above embodiments can operate independently of the indoor unit 10 for heating or cooling, and of course can also operate synchronously with the indoor unit 10 for heating and cooling.

In the fresh air-conditioning indoor unit 10 of the present invention, the fresh air device 200 may be installed inside the indoor unit 10, integrated with the indoor unit 10, or may be installed outside the indoor unit 10. Regardless of the installation state of any form, the cost of using the fresh air system in the prior art can be greatly reduced, the noise is low, and the user experience is better.

In the following description, "front", "rear", "upper", "lower", "top", "bottom", "inner", "outer", "horizontal", "longitudinal", "left and right", etc. The orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation or be constructed in a specific orientation. and operation, and therefore should not be construed as limiting the present invention.

By now, those skilled in the art will recognize that, although various exemplary embodiments of the present invention have been illustrated and described in detail herein, the present invention may still be implemented in accordance with the present disclosure without departing from the spirit and scope of the present invention. The content directly determines or derives many other variations or modifications consistent with the principles of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. A fresh air device comprising: the air inlet module is positioned below the fan module; wherein

The air inlet module is internally limited with an air inlet cavity, the air inlet cavity is communicated with a fresh air inlet pipe connected with the outside, and outdoor fresh air enters the air inlet cavity through the fresh air inlet pipe; a humidifying component is arranged in the air inlet cavity and is used for humidifying the outdoor fresh air; and

a fan module, comprising:

the fresh air fan is configured to introduce outdoor fresh air into the fan module from the air inlet module and send the fresh air to the indoor; and

the volute is arranged outside the fresh air fan, the air inlet of the volute is communicated with the air inlet cavity, and the air outlet of the volute faces to the upper part of the fresh air device; wherein

The humidifying assembly comprises a clip-shaped water tank transversely arranged in the air inlet cavity, and water is injected into the clip-shaped water tank and is used for humidifying the outdoor fresh air;

the outer edge of the clip-shaped water tank is fixedly connected with the air inlet cavity.

2. The fresh air device of claim 1,

the humidifying component also comprises a ventilation fence connected with the inner edge of the square-shaped water tank

And water-absorbing and water-retaining materials communicated with the square-shaped water tank are distributed on the ventilation grating.

3. The fresh air device of claim 2,

the aperture of the water-absorbing and water-retaining material is 1-2 mm, and the water-absorbing and water-retaining material is used for absorbing water in the square-shaped water tank to the ventilation grid to humidify outdoor fresh air.

4. The fresh air device of claim 2, further comprising:

the filtering component is positioned below the humidifying component and is used for filtering the outdoor fresh air;

and the purification component is positioned above the humidification component and used for purifying the outdoor fresh air.

5. The fresh air device of claim 4,

the filter assembly comprises a filter screen and a filter bracket for supporting the filter screen;

the filtering bracket is detachably and transversely fixed below the square-shaped water tank.

6. The fresh air device of claim 4,

the purification assembly comprises a purification module and a handle connected with the purification module;

the purification module is transversely arranged above the clip-shaped water tank;

the handle is used for pushing and pulling the purification module to move relative to the humidification assembly.

7. The fresh air device of claim 6,

a gap exists between the purification module and the ventilation grate.

8. The fresh air device of claim 4, further comprising,

the air deflector is arranged opposite to the air inlet of the air inlet cavity and longitudinally divides the air inlet cavity into a first air inlet cavity and a second air inlet cavity;

a gap is formed between the bottom end of the air deflector and the bottom of the air inlet cavity; after entering the first air inlet cavity, the outdoor fresh air changes the flow direction through the air deflector and enters the second air inlet cavity through the gap.

9. The fresh air device of claim 8,

the humidifying assembly is positioned in the second air inlet chamber, and one end of the humidifying assembly is fixed with the air deflector;

the bottom end of the filtering component is arranged on the upper side of the bottom end of the air deflector.

10. An indoor unit of a fresh air exchange air conditioner, comprising:

the rear part of the shell is provided with a shell air inlet, and the front part of the shell is provided with at least one shell air outlet; and

the fresh air device as claimed in any one of claims 1 to 9, located inside the cabinet, for sending fresh outdoor air into the cabinet and exhausting the fresh outdoor air from the air outlet of the cabinet to the indoor.

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