CN110701686A - Fresh air cabinet type air conditioner indoor unit - Google Patents

Abstract

The invention provides an indoor unit of a fresh air cabinet type air conditioner, comprising: a casing with an air inlet of the casing opened at the rear and at least one air outlet of the casing opened at the front; at least one air supply component arranged on the casing The fresh air device is arranged at the inner bottom of the casing; wherein the fresh air device comprises an air inlet cavity and an air outlet cavity connected with it, and the air inlet cavity and the air outlet cavity are longitudinally arranged side by side. In the technical solution provided by the present invention, the fresh air device is arranged vertically, on the one hand, it occupies less space, can effectively reduce the height of the air conditioner, and is more stable; on the other hand, the resistance of the outdoor fresh air passing through the purification module horizontally is smaller than the vertical air intake resistance , the air intake will be more uniform and the purification effect is good.

Description

A fresh air cabinet type air conditioner indoor unit

technical field

The invention relates to the technical field of fresh air air conditioners, in particular to an indoor unit of a fresh air cabinet type 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, because the current air conditioner only circulates the indoor air to heat or cool it when 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. In this way, for a long time, the indoor air quality It will gradually deteriorate, which will adversely affect the user's 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.

SUMMARY OF THE INVENTION

An object of the present invention is to provide an indoor unit of a fresh air cabinet type air conditioner to at least solve 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 simplify the internal structure of the indoor unit of the fresh air cabinet type air conditioner and reduce the cost.

In particular, the present invention provides an indoor unit of a fresh air cabinet type air conditioner, comprising:

a casing, with an air inlet of the casing at the rear, and at least one air outlet of the casing at the front;

at least one air supply assembly, disposed in the casing; and

The fresh air device is arranged at the bottom of the casing; wherein

The fresh air device includes an air inlet chamber and an air outlet chamber connected with it, and the air inlet chamber and the air outlet chamber are longitudinally arranged side by side;

The rear part of the air inlet cavity is provided with a pipeline connection end communicating with it, and the pipeline connection end is used to connect the fresh air intake pipe leading to the outdoor;

The air outlet cavity includes a fresh air fan and a volute arranged outside the fresh air fan; wherein

The air inlet of the volute of the fresh air fan is connected to the air inlet cavity, and its air outlet faces the top of the casing. The fresh air fan is configured to inhale the outdoor fresh air from the air inlet cavity and discharge it from the air outlet of the volute to the inside or outside of the casing. ;and

At least one air supply assembly is configured to at least partially inhale the outdoor fresh air discharged from the fresh air fan from the inside of the casing or the air inlet of the casing, and then discharge it from the air outlet of the casing.

Preferably, the indoor unit of the fresh air cabinet type air conditioner further comprises,

The heat exchanger is arranged on the air inlet main air duct between the air supply assembly and the air inlet of the casing, so that the gas entering through the air inlet of the casing exchanges heat with the heat exchanger;

The electrical box is vertically arranged at the bottom of the casing and is close to the air outlet cavity.

Preferably, a purification module is provided on the side of the air inlet cavity close to the air outlet cavity, which is used to purify the outdoor fresh air delivered to the room.

Preferably, the at least one air supply assembly includes a first air supply assembly and a second air supply assembly disposed below the first air supply assembly; and

The at least one enclosure air outlet includes a top air outlet and a lower air outlet, and the first and second air supply assemblies are configured to facilitate air flow to the indoor environment via the top air outlet and the lower air outlet, respectively.

Preferably, the first air supply assembly and the second air supply assembly include a centrifugal fan and a volute disposed outside the centrifugal fan, and the centrifugal fan is configured to suck indoor air from the air inlet of the casing and cause it to exit through the casing The air outlet is sent to the indoor environment again.

Preferably, the first air supply assembly is parallel to the rotation axes of the centrifugal fan and the fresh air fan of the second air supply assembly.

Preferably, the connecting end of the pipeline is arranged in the middle of the rear side of the air inlet cavity, and the fresh air air inlet pipe passes through the casing and extends to the outside.

Preferably, a dust removal net is detachably installed on the air inlet side of the air inlet cavity close to the air outlet cavity, which is used to dedust the outdoor air transported to the room.

Preferably, a handle is installed on the front of the purification module for easy replacement of the purification module.

Preferably, the fresh air device operates independently of the indoor machine heating or cooling.

In the indoor unit of the fresh air cabinet type air conditioner of the present invention, since a fresh air device is newly added to the indoor unit of the traditional cabinet type air conditioner, during the cooling or heating process of the air conditioner, even if the window is closed, the outdoor fresh air can be introduced through the fresh air device Indoors, provide continuous and fresh air for closed indoor spaces, thereby increasing the oxygen content of indoor air and preventing air-conditioning diseases.

Further, the indoor unit of the fresh air cabinet type air conditioner of the present invention is especially suitable for the air conditioner with the upper and lower air supply of the double centrifugal fans. In the technical solution provided by the present invention, the fresh air device is arranged vertically, on the one hand, it occupies less space, can effectively reduce the height of the air conditioner, and is more stable; The resistance is smaller, the air intake will be more uniform, and the purification effect is good. Furthermore, the vertical placement of the electrical box enhances the waterproofness, which greatly reduces the probability of damaging the electrical controls due to the leakage of the water tray.

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 cabinet type air conditioner according to an embodiment of the present invention;

Fig. 2 is the internal schematic structure diagram of the indoor unit of the fresh air cabinet type air conditioner shown in Fig. 1;

Fig. 3 is the bottom enlarged schematic structural diagram of the indoor unit of the fresh air cabinet type air conditioner shown in Fig. 2;

Fig. 4 is a schematic structural diagram of the fresh air device of the indoor unit of the fresh air cabinet type air conditioner shown in Fig. 2;

FIG. 5 is an exploded schematic structural diagram of the fresh air device shown in FIG. 4 .

Detailed ways

FIG. 1 is an overall schematic structural diagram of an indoor unit 10 of a fresh air cabinet type air conditioner according to an embodiment of the present invention; FIG. 2 is a schematic internal structural diagram of the indoor unit 10 of a fresh air cabinet type air conditioner shown in FIG. 1 . As can be seen from FIG. 1 , the indoor unit 10 of the fresh air cabinet type air conditioner provided by the present invention includes a fresh air device 200 at the bottom end of the indoor unit in addition to the indoor unit having the same appearance and performance as the prior art. 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 (not shown) and at least one casing air outlet (101 or 102) are arranged thereon. Indoor air is introduced into the indoor unit 10 from the air inlet of the casing (not shown) through any air supply component, and after heat exchange (cooling or heating) by the heat exchanger 130, the heat-exchanged air is then removed from the casing. The air outlet (101 or 102) is introduced into the room, and in this way, the temperature of the indoor air is adjusted when the ambient temperature is too low or too high to reach the user's preset temperature, providing a suitable indoor environment for the user, effectively improving the user quality of life.

Further, as shown in FIG. 2 , the air outlet 202 of the fresh air device 200 of the present invention leads to the outside of the indoor unit casing 100, the air outlet 202 faces the top of the casing 100, and at least one air supply assembly is configured to be a slave unit. The air inlet of the casing 100 sucks in at least part of the outdoor fresh air discharged by the fresh air fan 221, and after heat exchange with the heat exchanger 130, it is discharged from the air outlet (101 or 102) of the casing to complete the transportation of the outdoor fresh air from the outdoor to the indoor.

The heat exchanger 130 is arranged on the air inlet main air duct between the volutes (112 and 122) of the centrifugal fans (111 and 121) and the casing air inlet (not shown), so that the air inlet (not shown) passes through the casing air inlet (not shown). The incoming indoor air and the heat exchanger 130 exchange heat.

After the outdoor fresh air of the present invention is introduced by the fresh air device 200, it is directly sent to the outside of the air inlet (not shown) of the casing, instead of being sent into the casing 100, and the outdoor fresh air sent into the room is then sucked by at least one air supply assembly. Inside the shell 100, after the heat exchange by the heat exchanger 130 of the indoor unit 10, it quickly reaches the temperature set in the room, and then is sent into the room again from the air outlet (101 or 102) of the shell, so that the indoor temperature will not fluctuate greatly, and the indoor temperature will be maintained. stable, giving users a comfortable and healthy environment.

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 centrifugal fans (111 and 121) and volutes (112 and 122) disposed outside the centrifugal fans (111 and 121), and the centrifugal fans (111 and 121) It is configured to draw indoor air from the enclosure air inlet (not shown) and cause it to be re-introduced into the indoor environment via the enclosure air outlet (101 or 102).

At least one casing air outlet (101 or 102) includes a top air outlet 101 and a lower air outlet 102, wherein the top air outlet 101 corresponds to the air outlet of the volute 112 of the first air supply assembly 110, and the lower air outlet 102 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 promote 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 101 and the lower air outlet 102 respectively.

In a specific embodiment, the first air supply assembly 110 and the second air supply assembly 120 may operate simultaneously, or may operate independently.

When the first air supply assembly 110 or the second air supply assembly 120 operates alone, the indoor air is drawn into the indoor unit 10 from the air inlet (not shown) of the casing, and the outdoor fresh air is drawn into the outside of the casing 100 from the fresh air device 200, The first air supply assembly 110 or the second air supply assembly 120 sends indoor air and outdoor fresh air into the room through the top air outlet 101 or the lower air outlet 102 to complete the air circulation. In this case, the indoor unit 10 of the fresh air cabinet air conditioner of the present invention and the cabinet air conditioner of the prior art have little difference in the ventilation air volume and little change in the operation capacity, but can deliver outdoor fresh air indoors. Update indoor air in real time to 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 and 121) work together to send the indoor air and the outdoor air to the room through the top air outlet 101 or the lower air outlet 102, completing the process. Air circulation flows. 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 cabinet type air conditioner provided by the present invention can realize upper and lower air supply, The large air supply volume increases the ventilation capacity of the indoor unit 10. On the basis of the increase in the ventilation volume, the fresh air device 200 sends outdoor fresh air into the indoor unit 10, and the indoor unit 10 has enough power to send the fresh air into the indoor unit 10. Indoors, sending more outdoor fresh air to the room can quickly update the indoor air and improve the quality of indoor air more effectively and in a timely manner.

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

3 is an enlarged schematic structural diagram of the bottom of the indoor unit 10 of the fresh air cabinet type air conditioner shown in FIG. 2 ; FIG. 4 is a schematic structural diagram of the fresh air device 200 of the indoor unit 10 of the fresh air cabinet type air conditioner shown in FIG. 2 , and FIG. 5 It is an exploded schematic structural diagram of the fresh air device 200 shown in FIG. 4 ; further analysis with reference to FIG. 2 shows that those skilled in the art know that 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 inlet chamber 210 and an air outlet chamber 220. Specifically, in this embodiment, the air inlet chamber 210 and the air outlet chamber 220 are longitudinally arranged side by side, and the air inlet chamber 210 and the air outlet chamber 220 communicate with each other; The longitudinal arrangement direction of the air cavity 210 and the air outlet cavity 220 is consistent with the front-rear direction of the indoor unit 10 .

Specifically, the rear portion of the air inlet cavity 210 is provided with a pipeline connection end 211 communicating therewith, and the pipeline connection end 211 is used to connect a fresh air intake pipe leading to the outside. The function of the fan of the outdoor fresh air in the air outlet cavity 220 is to enter the air inlet cavity 210 from the fresh air intake duct. Preferably, the pipe connection end 211 is arranged in the middle of the rear side of the air inlet cavity 210 , and the fresh air inlet pipe passes through the casing 100 and extends to the outside; those skilled in the art know that the pipe connection end 211 is arranged in the air inlet cavity 210 In the middle of the rear side, that is, the outdoor fresh air enters the air inlet cavity 210 from the middle of the air inlet cavity 210, so that the outdoor fresh air in the air inlet cavity 210 is distributed more evenly, and the outdoor fresh air flows more smoothly in the fresh air device 200. Less noise.

The air outlet cavity 220 includes a fresh air fan 221 and a volute 222 . The fresh air blower 221 is specifically a centrifugal blower, the air outlet cavity 220 communicates with the air outlet cavity 220 , and the volute 222 is disposed outside the fresh air blower 221 . The air inlet of the volute 222 of the centrifugal fan is communicated with the air inlet cavity 210 , the air outlet 201 is connected to the fresh air outlet duct 223 leading to the outside of the casing 100 , and the air outlet 202 of the fresh air outlet duct 223 faces the top of the casing 100 , so that more gas is directly transported to the air inlet (not shown) of the casing, and more fresh air from the outside enters the indoor unit 10, and is discharged into the room after heat exchange by the indoor unit 10, and the more outdoor fresh air enters the indoor unit. 10 heat exchange, so that the smaller the indoor temperature fluctuation, the more stable the indoor temperature; the centrifugal fan is configured to inhale the fresh air from the outside of the air inlet chamber 210, and use the fresh air outlet duct 223 to send it to the outside of the casing 100.

After the outdoor fresh air is sent into the room from the air outlet cavity 220, the first air supply assembly 110 and/or the second air supply assembly 120 are sent into the room from the top air outlet 101 and the lower air outlet 102 respectively, so as to send fresh air into the room. The outdoor fresh air can increase the oxygen content of the air in the closed room, effectively reducing the probability of users getting air-conditioning diseases.

In some preferred embodiments, the rotation axes of the centrifugal fans (111 and 121) and the fresh air fan 221 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.

Further, the radii of the impellers of the centrifugal fans (111 and 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 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.

In the fresh air device 200 in the above-mentioned embodiments, a purification module 212 is provided on the side of the air inlet cavity 210 close to the air outlet cavity 220 for purifying the outdoor fresh air delivered to the room. A handle 214 is installed on the front of the purification module 212 for easy replacement of the purification module 212 .

The purification module uses strong electric field dielectric technology 212 times to purify the air delivered to the room. Specifically, the purification module 212 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 212 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 212 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 more reasonably utilize the space inside the casing 100, the indoor unit 10 of the fresh air cabinet type air conditioner provided by the present invention further includes an electrical box 140, as shown in FIG. 2, the technical solution provided by the present invention, the fresh air device 200 and the electrical box 140 Vertical arrangement, on the one hand, takes up less space, can effectively reduce the height of the air conditioner, and is more stable; on the other hand, the resistance of the outdoor fresh air passing through the purification module 212 is smaller than that of the vertical air intake, and the air intake will be more uniform, purifying Works well. Furthermore, the vertical placement of the electrical box 140 enhances the waterproofness, which greatly reduces the probability of damaging the electrical controls due to the leakage of the water tray. After a long-term use investigation, the probability of damage to the electrical controls due to water leakage from the pan is reduced by four-fifths compared to the design in the prior art.

In some alternative embodiments, a filter screen is detachably installed at the air inlet of the fresh air intake duct to prevent dust or mosquitoes from entering the fresh air device 200, pollute or damage the internal structure of the fresh air device 200, and prevent the The fresh air device 200 changes the quality of the fresh air.

In the fresh air device 200 of the present invention, by installing the filter screen 224 and the purification device, the fresh air entering the room can be purified, especially now that the air pollution is becoming more and more serious, the purified air is sent into the room to improve the indoor air quality, Reduce the harm of polluted air to the body.

In other embodiments, as shown in FIG. 3 , a dust removal screen 213 is detachably installed on the air inlet side of the air inlet cavity 210 close to the air outlet cavity 220 for filtering the outdoor air delivered to the room. In some areas or cities with better air quality, there is no need to install purification devices, and the outdoor fresh air entering the room can also meet the standard. However, sand and dust cannot be avoided in the outdoor fresh air. Therefore, after installing the dust removal net 213, the outdoor fresh air can be dedusted to prevent sand and dust from entering the fresh air device 200 and the indoor unit 10 and damaging the fresh air fan 221 and the centrifugal fan of the air supply assembly (111). and 121) of the fan blades, thereby affecting the use of the indoor unit 10. When the dust removal net 213 is used for a long time, the user can take it out for cleaning or replacement by himself, so as to ensure that the indoor air quality reaches the standard.

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 cabinet type air conditioner 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. An indoor unit of a fresh air cabinet type air conditioner, comprising: a casing, with an air inlet of the casing at the rear, and at least one air outlet of the casing at the front; at least one air supply assembly, disposed in the casing; and A fresh air device is arranged at the inner bottom of the casing; wherein The fresh air device includes an air inlet cavity and an air outlet cavity communicated with it, and the air inlet cavity and the air outlet cavity are longitudinally arranged side by side; The rear part of the air inlet cavity is provided with a pipeline connection end communicating with it, and the pipeline connection end is used to connect the fresh air inlet pipe leading to the outdoor; The air outlet cavity includes a fresh air fan and a volute arranged outside the fresh air fan; wherein The air inlet of the volute of the fresh air fan communicates with the air inlet cavity, and the air outlet faces the top of the casing, and the fresh air fan is configured to inhale the outdoor fresh air of the The air outlet of the volute discharges into or out of the casing; and At least one of the air supply components is configured to at least partially inhale the outdoor fresh air discharged by the fresh air fan from the inside of the casing or the air inlet of the casing, and then discharge it from the air outlet of the casing. 2. The indoor unit of a fresh air cabinet type air conditioner according to claim 1, further comprising, a heat exchanger, which is arranged on the air inlet main air duct between the air supply assembly and the air inlet of the casing, so that the gas entering through the air inlet of the casing exchanges heat with the heat exchanger; The electrical box is vertically arranged at the bottom of the casing and is close to the air outlet cavity. 3. The indoor unit of a fresh air cabinet type air conditioner according to claim 1, wherein, A purification module is provided on the side of the air inlet cavity close to the air outlet cavity, which is used for purifying the outdoor fresh air delivered to the room. 4. The indoor unit of the fresh air cabinet type air conditioner according to any one of claims 1 to 3, wherein, The at least one air supply assembly includes a first air supply assembly and a second air supply assembly disposed below the first air supply assembly; and The at least one enclosure air outlet includes a top air outlet and a lower air outlet, and the first air supply assembly and the second air supply assembly are configured to facilitate air flow into the room through the top air outlet and the lower air outlet, respectively surroundings. 5. The indoor unit of a fresh air cabinet type air conditioner according to claim 4, wherein, The first air supply assembly and the second air supply assembly of the air supply assembly include a centrifugal fan and a volute disposed outside the centrifugal fan, and the centrifugal fan is configured to suck indoor air from the air inlet of the casing And promote it to be sent to the indoor environment again through the air outlet of the casing. 6. The indoor unit of a fresh air cabinet type air conditioner according to claim 5, wherein, The first air supply assembly is parallel to the rotation axes of the centrifugal fan and the fresh air fan of the second air supply assembly. 7. The indoor unit of a fresh air cabinet type air conditioner according to claim 1, wherein, The pipeline connection end is arranged in the middle part of the rear side of the air inlet cavity, and the fresh air inlet pipe passes through the casing and extends to the outside. 8. The indoor unit of the fresh air cabinet type air conditioner according to claim 7, wherein, A dust removal net is detachably installed on the air inlet side of the air inlet cavity close to the air outlet cavity, which is used to remove dust from the outdoor air transported into the room. 9. The indoor unit of a fresh air cabinet type air conditioner according to claim 2, wherein, A handle is installed on the front of the purification module for easy replacement of the purification module. 10. The indoor unit of a fresh air cabinet type air conditioner according to claim 1, wherein, The fresh air device operates independently of the indoor machine for heating or cooling.

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