CN1260526C - Multiple air blowing mode silent split air conditioner for room - Google Patents

Abstract

The present invention relates to a silent split air conditioner with multiple air blowing modes for rooms, which belongs to the technical fields of refrigeration and air conditioning. The present invention comprises an outdoor machine, an evaporator, an indoor machine blower, an indoor machine casing, an air door blade with multiple holes, an air door motor connection shaft, an air door motor, and an air return opening of an indoor machine. The present invention adopts foamed metal to be used as the material of the air door blade with multiple holes, and increases the following two air blowing modes: 1. a silent scattering air blowing mode: the running noise of the indoor machine blower is isolated fundamentally, and airflows penetrates through the air door blade with multiple holes to be blown out; 2. a mixed air blowing mode: a part of airflow penetrates through the air door blade with multiple holes to be blown out, and the other part of airflow is blown out through gaps between the air door blade with multiple holes and the indoor machine casing. The function of the silent scattering air blowing mode of the present invention can cause the noise of the indoor machine of the air conditioner to be reduced by five decibels, and can avoid that air with a relatively great oriented speed is blown onto a person to be uncomfortable. The function of the mixed air blowing mode of the present invention can guarantee comfort and silence, and can guarantee air blowing quantity.

Description

Multi-supply mode quiet type split room air conditioner

Technical field:

The invention relates to a room air conditioner, in particular to a quiet split-type room air conditioner with multiple air supply modes, which can reduce noise and improve comfort, and belongs to the technical field of refrigeration and air conditioning.

Background technique:

Room air conditioners generally guide the flow of air through the guiding function of the damper. When the air conditioner is in a normal operating state, the cold air will flow to the room in a certain direction. At this time, the place directly blown by the cold air has a lower temperature, and the cooling effect of the rest of the space is poor. In order to save the power consumption of the air conditioner, the air blowing direction of the general air conditioner is directed to the area where the human body moves. However, if a person changes from an active state to rest, especially during sleep, if there is air with a lower temperature and a higher velocity flowing over the surface of the human body at this time, it will cause discomfort to the human body and even lead to illness. Moreover, in the above air conditioner working mode, the noise of the indoor fan of the air conditioner will also be introduced along with the air flow, which is not conducive to creating a quiet atmosphere required for human sleep.

Some split-type air conditioners currently available on the market have high, medium, and low air supply speed settings. When the sleep mode is set, the set temperature is only slightly increased, and the air supply speed is set to low.

After searching the public literature of the prior art, it is found that the existing low-noise air-conditioning patents include: (1) duct-type noise-free air conditioner (patent No. 2204387); (2) noise-free room air-conditioner (patent No. 2257362) . The basic ideas of these two patents all use the mode of the air supply duct, so that the noise generated by the operation of the compressor cannot be introduced into the air-conditioning room. But this does not solve the problem of further reducing noise and improving air supply comfort in the existing split air conditioner. Therefore expand the function of split type air conditioner, make it can have and reduce noise greatly when needed, simultaneously blowing mode changes the blowing of scattering type from the larger wind speed of orientation, still is a problem to be solved.

Invention content:

The purpose of the present invention is to aim at the deficiencies of the prior art, to design and provide a multi-air supply mode quiet split type that can greatly reduce the air flow speed and noise when needed, improve the comfort of the human body, and at the same time maintain sufficient cooling performance. A room air conditioner, including an outdoor unit, an evaporator, an indoor unit fan, an indoor unit casing, a porous damper blade, a damper motor connecting shaft, a damper motor, and an indoor unit return air outlet.

Compared with the commonly used split type air conditioner at present, the material of the porous damper blade adopted in the present invention is a porous material that allows air to penetrate, and foam metal can be used, such as foam aluminum.

The air return port of the indoor unit is located at the front upper part of the indoor unit shell, the evaporator is installed in the indoor unit shell near the air return port of the indoor unit, and the indoor unit fan is located at the rear lower part of the evaporator. The damper motor is installed at the bottom of the indoor unit casing, and is connected to the porous damper blade through the damper motor connecting shaft. When the damper motor rotates, the perforated damper blades can be rotated. The outlet of the outdoor unit is connected with the inlet of the evaporator, and the outlet of the evaporator is connected with the inlet of the outdoor unit.

The multi-air supply mode quiet type split room air conditioner of the present invention has the following four air supply modes:

1) Normal stop mode. At this time, the porous damper blade is closed, and the porous damper blade and the indoor unit shell form an approximately closed space, the indoor unit fan does not operate, and the air conditioner does not send air.

2) Normal start-up operation mode. At this time, the air door motor rotates the porous damper blade outward through the damper motor connecting shaft, and the air conditioner sends air according to the guidance of the porous damper blade.

3) Silent diffused air supply mode. At this time, the porous damper blade is closed, and the porous damper blade and the indoor unit shell form an approximately closed space, and the indoor unit fan operates, and the airflow penetrates the porous damper blade. The operating noise of the indoor unit fan is basically isolated in the approximate closed space formed by the perforated damper blades and the indoor unit casing. The airflow penetrating through the perforated damper blades scatters at a small wind speed, which is much slower than the normal power-on operation mode, and the flow sound of the airflow itself is very loud. Small, and will not cause the discomfort of a large directional wind speed blowing on people. Therefore, this air supply mode is very quiet and comfortable, but the air supply volume will be smaller than the normal power-on operation mode.

4) Mixed air supply mode. At this time, the damper motor deflects the perforated damper blade inwardly by 0°15° from the stop position through the damper motor connecting shaft, and the fan of the indoor unit is running. Part of the airflow penetrates the perforated damper blade, and the other part of the airflow passes through the gap between the perforated damper blade and the shell of the indoor unit. blow out. Compared with the normal start-up operation mode, the air supply volume of this air supply mode is slightly smaller, but the noise is low and the comfort is good; compared with the silent diffuse air supply mode, the air supply volume is increased, but the noise is slightly higher, and the comfort is better. no big difference.

Among the above four air supply modes, the first two are the air supply modes of the existing air conditioner, and the latter two are the unique air supply modes of the present invention.

The present invention has significant advantages and positive effects. The silent scattering air supply mode function of the present invention can reduce the noise of the indoor unit of the air conditioner by about 5 decibels, and avoid the uncomfortable feeling caused by high directional wind speed blowing on people. The mixed air supply mode function of the present invention can guarantee the air supply volume while ensuring comfort and quietness.

Description of drawings:

Fig. 1 is a schematic diagram of the normal start-up operation mode of the multi-air supply mode quiet type split room air conditioner of the present invention;

Fig. 2 is a schematic diagram of the silent diffused air supply mode of the multi-air supply mode quiet type split room air conditioner of the present invention;

Fig. 3 is a schematic diagram of the mixed air supply mode of the multi-air supply mode quiet type split room air conditioner of the present invention.

In the figure, 1 is an outdoor unit, 2 is an evaporator, 3 is an indoor unit fan, 4 is an indoor unit casing, 5 is a porous damper blade, 6 is a connecting shaft of a damper motor, and 7 is a damper motor.

In the figure, arrows indicate the direction of air flow.

Detailed ways:

The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

As shown in Fig. 1, the present invention includes an outdoor unit 1, an evaporator 2, an indoor unit fan 3, an indoor unit casing 4, a porous damper blade 5, a damper motor connecting shaft 6, a damper motor 7, and an indoor unit air return port 8.

The indoor unit return air outlet 8 is positioned at the front upper part of the indoor unit casing 4, and the evaporator 2 is installed in the indoor unit casing 4 near the indoor unit return air outlet, and the indoor unit fan 3 is positioned at the rear lower part of the evaporator 2. The damper motor 7 is installed on the bottom of the indoor unit shell 4, and is connected with the porous damper blade 5 through the damper motor connecting shaft 6. When the damper motor 7 rotates, the porous damper blade 5 can be rotated. The outlet of the outdoor unit 1 is connected with the inlet of the evaporator 2, and the outlet of the evaporator 2 is connected with the inlet of the outdoor unit 1.

The material of the porous damper blade 5 is aluminum foam.

This air conditioner has the following four air supply modes:

1) Normal stop mode. At this moment, the porous damper blade 5 is closed, and the porous damper blade 5 forms an approximately closed space with the indoor unit shell 4, and the indoor unit blower fan 3 does not operate, and the air conditioner does not blow air.

2) Normal start-up operation mode. At this time, the damper motor 7 rotates the porous damper blade 5 outwards through the damper motor connecting shaft 6, and the air conditioner sends air according to the guidance of the porous damper blade 5 (as shown in Figure 1 ).

3) Silent diffused air supply mode. At this moment, the porous damper blade 5 is closed, and the porous damper blade 5 forms an approximately closed space with the indoor unit shell 4, and the indoor unit fan 3 operates, and the air flow penetrates the porous damper blade 5 (as shown in Figure 2 ). The operating noise of the indoor unit fan 3 is basically isolated in the approximately closed space formed by the perforated damper blade 5 and the indoor unit casing 4. The airflow penetrating through the perforated damper blade 5 scatters at a small wind speed, which is much slower than the normal power-on operation mode. The airflow itself The flow sound is very small, and it will not cause the discomfort of a large directional wind speed blowing on people. Therefore, this air supply mode is very quiet and comfortable, but the air supply volume will be smaller than the normal power-on operation mode.

4) Mixed air supply mode. At this time, the damper motor 7 deflects the porous damper blade 5 inwardly from the stop position by 0°-15° through the damper motor connecting shaft 6, and the indoor unit fan 3 is running. Part of the air flow penetrates the porous damper blade 5, and the other part of the air flow passes through the porous damper blade. 5 and the gap between the indoor unit casing 4 to blow out (as shown in Figure 3). Compared with the normal start-up operation mode, the air supply volume of this air supply mode is slightly smaller, but the noise is low and the comfort is good; compared with the silent diffuse air supply mode, the air supply volume is increased, but the noise is slightly higher, and the comfort is better. no big difference.

Among the above four air supply modes, the first two are the air supply modes of the existing air conditioner, and the latter two are the unique air supply modes of the present invention.

Claims (2)

1. A quiet split-type room air conditioner with multiple air supply modes, including an outdoor unit (1), an evaporator (2), an indoor unit fan (3), an indoor unit casing (4), and a damper motor connecting shaft (6) , air door motor (7), indoor unit air return port (8), which is characterized in that it also includes porous damper blades (5), the indoor unit air return port (8) is located at the front upper part of the indoor unit shell (4), and the evaporator (2) Installed in the indoor unit shell (4) close to the air return port of the indoor unit, the indoor unit fan (3) is located at the rear lower part of the evaporator (2), the damper motor (7) is installed at the bottom of the indoor unit shell (4), and passes through the damper The motor connecting shaft (6) is connected with the porous damper blade (5), the outlet of the outdoor unit (1) is connected with the inlet of the evaporator (2), and the outlet of the evaporator (2) is connected with the inlet of the outdoor unit (1). The room air conditioner has a silent diffused air supply mode and a mixed air supply mode. The porous damper blade (5) forms an approximately closed space with the indoor unit casing (4), and the indoor unit fan (3) operates, and the airflow passes through the porous damper blade ( 5), forming a silent scattering air supply mode; the damper motor (7) deflects the porous damper blade (5) inwardly from the stop position by 0°-15° through the damper motor connecting shaft (6), and the indoor unit fan (3) runs, A part of the air flow penetrates through the porous damper blade (5), and another part of the air flow is blown out through the gap between the porous damper blade (5) and the casing of the indoor unit (4), forming a mixed air supply mode. 2. The quiet split-type room air conditioner with multiple air supply modes according to claim 1, characterized in that the material of the porous damper blade (5) is metal foam.

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