Air conditioner indoor unit with fresh air system and air conditioner

Abstract

The present invention provides an air conditioning indoor unit and an air conditioner with a fresh air system. The air conditioning indoor unit includes: a fresh air system, the fresh air system including a fresh air outlet; the air conditioning indoor unit also includes a housing and an air inlet grille, the air inlet grille is arranged on the housing, and the fresh air system is arranged inside the housing. The fresh air outlet is opposite to the housing or opposite to the air inlet grille. A second air outlet is formed on the housing or on the air inlet grille at a position opposite to the fresh air outlet. After air flows through the fresh air outlet, it is discharged into the room through the second air outlet. The area of the fresh air outlet is S1, and the area of the second air outlet is S3, and S1 < S3. The present invention can effectively increase the volume behind the fresh air outlet, which is equivalent to forming a diffusion channel, thereby effectively reducing the wind speed and thus reducing the airflow noise, so that the air conditioning indoor unit can operate safely, reliably and stably.

Description

Technical Field

[0001] The present invention belongs to the technical field of air conditioning, and in particular relates to an air conditioning indoor unit and an air conditioner with a fresh air system. Background Art

[0002] Previous air conditioners could only circulate indoor air for cooling and heating purposes, but this failed to guarantee fresh air. With the continuous development of the air conditioning industry, a new type of air conditioner has emerged with a ventilation function. This type of air conditioner draws fresh air from the outside into the room, which is then used for cooling and heating. This ensures both customer comfort and indoor air quality. However, the degraded indoor air is discharged to the outside through an exhaust device. However, existing fresh air air conditioners are noisy, compromising reliability and stability, and seriously affecting their performance.

[0003] Since the fresh air air conditioner in the prior art has a large noise, the reliability and stability of the air conditioner cannot be guaranteed, which seriously affects the working performance of the air conditioner. Therefore, the present invention studies and designs an air conditioner indoor unit and air conditioner with a fresh air system. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect of high noise in the fresh air air conditioner in the prior art, thereby providing an air conditioner indoor unit and an air conditioner with a fresh air system.

[0005] The present invention provides an air conditioner indoor unit with a fresh air system, comprising:

[0006] A fresh air system, the fresh air system includes a fresh air outlet; the air-conditioning indoor unit also includes a shell and an air inlet grille, the air inlet grille is arranged on the shell, and the fresh air system is arranged inside the shell, the fresh air outlet is opposite to the shell or opposite to the air inlet grille, and a second air outlet is formed on the shell or on the air inlet grille at a position opposite to the fresh air outlet. After passing through the fresh air outlet, the air flow is discharged into the room through the second air outlet, and the area of the fresh air outlet is S1, the area of the second air outlet is S3, and S1<S3.

[0007] Preferably,

[0008] There is also a relationship between the area S1 of the fresh air outlet and the area S3 of the second air outlet: 1 / 5*S3≤S1≤4 / 5*S3.

[0009] Preferably,

[0010] The air-conditioning indoor unit includes an indoor unit body, which is also arranged inside the shell. The fresh air system is located on one side of the indoor unit body, and the indoor unit body includes an indoor air inlet. The position on the air inlet grille opposite to the indoor air inlet is formed as an air inlet grille inlet. The indoor air flows through the air inlet grille inlet and then through the indoor air inlet to enter the interior of the indoor unit body for heat exchange.

[0011] Preferably,

[0012] A filter assembly is further provided on the fresh air outlet, between the fresh air outlet and the second air outlet.

[0013] Preferably,

[0014] The area S2 of the filter assembly is equal to the area S3 of the second air outlet.

[0015] Preferably,

[0016] When the fresh air outlet is opposite to the air inlet grille, the second air outlet is arranged on the air inlet grille and at a position opposite to the fresh air outlet, and is the air inlet grille outlet.

[0017] Preferably,

[0018] The air inlet grille is located above the shell, and the second air outlet is arranged on the air inlet grille above the shell.

[0019] Preferably,

[0020] When the fresh air outlet is opposite to the shell, the second air outlet is arranged on the shell and at a position opposite to the fresh air outlet, and is the shell air outlet.

[0021] Preferably,

[0022] The air inlet grille is located above the shell, and the second air outlet is arranged on the front, side or bottom surface of the shell.

[0023] The present invention also provides an air conditioner, which includes the air conditioner indoor unit with the fresh air system as described in any of the preceding items.

[0024] The air conditioner indoor unit and air conditioner with a fresh air system provided by the present invention have the following beneficial effects:

[0025] The present invention arranges the fresh air system inside the shell of the indoor unit, and a second air outlet is opened on the shell or the air inlet grille, and the fresh air outlet of the fresh air system is opposite to the second air outlet, so that the fresh air is discharged from the fresh air outlet to the second air outlet and then into the room. Since the area of the fresh air outlet S1 and the area of the second air outlet S3 are set to S1<S3, the volume behind the fresh air outlet can be effectively increased, which is equivalent to forming a diffusion channel, thereby effectively reducing the wind speed and thus reducing the airflow noise, so that the air conditioner indoor unit can operate safely, reliably and stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the exploded structure of the air conditioner indoor unit with a fresh air system of the present invention.

[0027] The reference numerals in the figures are as follows:

[0028] 1. Fresh air system; 11. Fresh air outlet; 2. Housing; 3. Air inlet grille; 31. Second air outlet; 32. Air inlet grille inlet; 4. Indoor unit body; 41. Indoor air inlet; 5. Filter assembly. DETAILED DESCRIPTION

[0029] like Figure 1 As shown, the present invention provides an air conditioner indoor unit with a fresh air system, which includes:

[0030] A fresh air system 1 includes a fresh air outlet 11; the air-conditioning indoor unit also includes a shell 2 and an air inlet grille 3, the air inlet grille 3 is arranged on the shell 2, and the fresh air system 1 is arranged inside the shell 2, the fresh air outlet 11 is opposite to the shell 2 or the air inlet grille 3, and a second air outlet 31 is formed on the shell 2 or on the air inlet grille 3 at a position opposite to the fresh air outlet 11. The air flow passes through the fresh air outlet 11 and then passes through the second air outlet 31 to be discharged into the room, and the area of the fresh air outlet 11 is S1, the area of the second air outlet 31 is S3, and S1<S3.

[0031] The present invention arranges the fresh air system inside the shell of the indoor unit, and a second air outlet is opened on the shell or the air inlet grille, and the fresh air outlet of the fresh air system is opposite to the second air outlet, so that the fresh air is discharged from the fresh air outlet to the second air outlet and then into the room. Since the area of the fresh air outlet S1 and the area of the second air outlet S3 are set to S1<S3, the volume behind the fresh air outlet can be effectively increased, which is equivalent to forming a diffusion channel, thereby effectively reducing the wind speed and thus reducing the airflow noise, so that the air conditioner indoor unit can operate safely, reliably and stably.

[0032] Preferably,

[0033] There is also a relationship between the area S1 of the fresh air outlet 11 and the area S3 of the second air outlet 31: 1 / 5*S3≤S1≤4 / 5*S3. This is a further preferred size relationship between the area S1 of the fresh air outlet 11 and the area S3 of the second air outlet 31 of the present invention, which allows the second air outlet to be a certain amount larger than the fresh air outlet, but not too large, as this may cause excessive airflow loss and adversely affect the energy efficiency of the air conditioning system. Therefore, setting it within the above range can reduce both airflow noise and airflow energy loss, thereby ensuring system energy efficiency.

[0034] Preferably,

[0035] The air conditioner indoor unit includes an indoor unit body 4, which is also disposed within the housing 2. The fresh air system 1 is located on one side of the indoor unit body 4, and the indoor unit body 4 includes an indoor air inlet 41. The position on the air inlet grille 3 opposite the indoor air inlet 41 forms an air inlet grille inlet 32. The indoor airflow passes through the air inlet grille inlet 32 and then through the indoor air inlet 41 to enter the interior of the indoor unit body 4 for heat exchange. This is a further preferred structural form of the indoor unit of the present invention, i.e., the indoor unit body is used to take in air for air heat exchange. The indoor unit body is also located within the housing and is disposed close to the fresh air system, allowing indoor heat exchange to occur on one side while introducing outdoor fresh air or discharging dirty indoor air on the other side.

[0036] Preferably,

[0037] A filter assembly 5 is further provided on the fresh air outlet 11, between the fresh air outlet 11 and the second air outlet 31. The filter assembly can further filter the fresh air entering the room, thereby enhancing the cleanliness and comfort of the indoor air.

[0038] Preferably,

[0039] The area S2 of the filter assembly 5 is equal to the area S3 of the second air outlet 31. This effectively forms a diffusion channel between the fresh air outlet and the filter assembly, effectively increasing the volume and reducing the airflow velocity, thereby effectively reducing airflow noise, increasing the length and path of the airflow silencing, and further reducing the noise of the fresh air air conditioner indoor unit.

[0040] Preferably,

[0041] When the fresh air outlet 11 is opposite the air inlet grille 3, the second air outlet 31, located on the air inlet grille 3 and opposite the fresh air outlet 11, serves as the air inlet grille outlet. This is the preferred structural form of the main embodiment of the present invention, where the second air outlet is located on the air inlet grille, allowing air from the fresh air outlet to be effectively blown out through the second air outlet of the air inlet grille. This rationally utilizes the structure of the air inlet grille, resulting in a more compact structure and eliminating the need for additional air outlets.

[0042] Preferably,

[0043] The air inlet grille 3 is located above the housing 2, and the second air outlet 31 is provided on the air inlet grille 3 above the housing 2. Figure 1 As shown, the fresh air outlet blows upward and is blown into the room through the second air outlet. The indoor air enters from the air inlet grille and enters the indoor unit body.

[0044] Preferably,

[0045] When the fresh air outlet 11 is opposite the housing 2, the second air outlet 31 is provided on the housing 2 and opposite the fresh air outlet 11, serving as the housing air outlet. This is the preferred structure of the first alternative embodiment of the present invention, in which the second air outlet is provided on the housing, and the air from the fresh air system is discharged into the room through the housing through the opening in the housing. This allows the opening to be provided on a different side from the air inlet grille, effectively preventing cross-wind.

[0046] Preferably,

[0047] The air inlet grille 3 is located above the housing 2, and the second air outlet 31 is provided on the front, side, or bottom of the housing 2. Fresh air is blown toward the front, side, or bottom (downward) and out into the room through the second air outlet. Indoor air enters the indoor unit through the air inlet grille and enters the indoor unit body.

[0048] The present invention also provides an air conditioner, which includes the air conditioner indoor unit with the fresh air system as described in any of the preceding items.

[0049] The present invention includes a fresh air system and an air conditioner indoor unit. The fresh air system is located inside the air conditioner indoor unit and includes a fresh air outlet. The air conditioner indoor unit includes an air inlet grille and a filter assembly, and the air inlet grille has a fresh air outlet. The fresh air outlet of the fresh air system communicates with the fresh air outlet of the air inlet grille. The filter assembly is located at the point where the fresh air outlet of the fresh air system communicates with the fresh air outlet of the air inlet grille. The area of the fresh air outlet of the fresh air system is S1, the area of the fresh air outlet of the air inlet grille is S3, and the area of the filter assembly is the same as the area of the fresh air outlet of the air inlet grille: 1 / 5S3≤S1≤4 / 5S3.

[0050] This fresh air system and air conditioner indoor unit can effectively reduce the wind speed at the fresh air outlet and reduce the noise of the fresh air system. By increasing the area of the fresh air outlet of the air inlet grille and the filter, it is equivalent to forming a diffusion air duct above the fresh air outlet of the fresh air system, thereby achieving the purpose of reducing wind speed and noise.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention. The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and variations without departing from the technical principles of the present invention, and such improvements and variations shall also be considered within the scope of protection of the present invention.

Claims

1. An air conditioner indoor unit with a fresh air system, characterized in that: include: A fresh air system (1), the fresh air system (1) comprising a fresh air outlet (11); the air conditioner indoor unit further comprising a housing (2) and an air inlet grille (3), the air inlet grille (3) being arranged on the housing (2), the fresh air system (1) being arranged inside the housing (2), the fresh air outlet (11) being opposite to the air inlet grille (3), a second air outlet (31) being formed on the air inlet grille (3) at a position opposite to the fresh air outlet (11), and airflow passing through the fresh air outlet (11) Then, the air is discharged into the room through the second air outlet (31), and the area of the fresh air outlet (11) is S1, the area of the second air outlet (31) is S3, and S1 < S3, so that the volume can be effectively increased after the fresh air outlet, which is equivalent to forming a diffusion channel and reducing the wind speed; there is also a relationship between the area S1 of the fresh air outlet (11) and the area S3 of the second air outlet (31): 1 / 5*S3≤S1≤4 / 5*S3; a grille structure is provided at the fresh air outlet (11); A filter assembly (5) is further provided on the fresh air outlet (11) and between the fresh air outlet (11) and the second air outlet (31); an area S2 of the filter assembly (5) is equal to an area S3 of the second air outlet (31); The air conditioner indoor unit includes an indoor unit body (4), the indoor unit body (4) is also arranged inside the shell (2), the fresh air system (1) is located on one side of the indoor unit body (4), and the indoor unit body (4) includes an indoor air inlet (41), and a position on the air inlet grille (3) opposite to the indoor air inlet (41) forms an air inlet grille inlet (32), and the indoor air flows through the air inlet grille inlet (32) and then through the indoor air inlet (41) to enter the interior of the indoor unit body (4) for heat exchange; When the fresh air outlet (11) is opposite to the air inlet grille (3), the second air outlet (31) is arranged on the air inlet grille (3) and at a position opposite to the fresh air outlet (11), and serves as an air inlet grille outlet; so that the second air outlet (31) and the air inlet grille inlet (32) form an integrated structure.

2. The air conditioner indoor unit according to claim 1, characterized in that: The air inlet grille (3) is located above the shell (2), and the second air outlet (31) is provided on the air inlet grille (3) above the shell (2).

3. An air conditioner, characterized in that: An air-conditioning indoor unit with a fresh air system according to any one of claims 1-2.

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