CN100398924C - Exhaust device of ceiling-mounted air conditioner indoor unit - Google Patents

Abstract

The invention provides an exhaust device for a ceiling-mounted air conditioner indoor unit, which includes an indoor unit casing, an air outlet, an air inlet, air guide blades and a control device, wherein: one or more sides of the indoor unit casing There is an exhaust outlet, and flanges are fixed around it. Two exhaust baffles of the same size are arranged in the exhaust outlet, and the exhaust outlet is completely blocked. One end of the two exhaust baffles is respectively supported on the Connected to the support of the casing, the other end of which is respectively provided with two linkage gears with opposite rotation directions and a right angle rotation angle, the linkage gears are meshed with the gears fixed on the casing of the stepping motor motor shaft, the stepping motor and the control device Electrically connected, the air outlet is connected to the outdoor air duct. The beneficial effect is that the structure enables the air conditioner to have the function of exchanging fresh air. Since the exhaust device of the indoor unit exhausts air through the air pipe, the oxygen content in the indoor air is increased, the harmful gas is reduced, the indoor air is fresh, and the air conditioner is improved. Human health level.

Description

Exhaust device of ceiling-mounted air conditioner indoor unit

technical field

The invention relates to an exhaust device for a ceiling-mounted four-outlet air-conditioning indoor unit, in particular to an exhausting device for a ceiling-absorbing type air-conditioning indoor unit with an exhaust function.

Background technique

With the growth of my country's economic strength and the improvement of people's living standards, room air conditioners have been popularized in general families. The basic working principle of ordinary room air conditioners is to adjust the temperature of local areas through gas heat exchange. In order to ensure the temperature adjustment effect, the environment is required to be closed, resulting in the continuous increase of indoor dust, smoke, bacteria, viruses, and exhaust gas, and the continuous decrease of oxygen content. Air quality is getting worse. Especially the recent use of various new building materials, a large amount of volatile organic compounds are emitted, which makes the types of indoor air pollutants increasingly complicated. According to data, people who stay in air-conditioned rooms for a long time will experience red eyes, dizziness, nausea, chest tightness, physical fatigue, drowsiness and other adverse symptoms. Therefore, the traditional air-conditioning equipment based on the concept of human thermal balance and comfort is far from meeting people's requirements for health and comfort. Adding various additional components to air-conditioning products to reduce the concentration of harmful substances in air-conditioned rooms to a certain extent and improve indoor air quality has become the development direction and trend of air-conditioning products. This kind of air-conditioning that can improve indoor air quality The air conditioner is called a healthy air conditioner.

The indoor environment is relatively airtight. After using the air conditioner for a long time, the oxygen content will decrease and the harmful gas will increase, which will cause damage to human health. If the room air conditioner has the function of replacing fresh air, or exhausting indoor air, or introducing fresh outdoor air, it can dilute or replace indoor harmful substances to a certain extent, thereby improving indoor air quality. . Most of the air conditioner products on the market do not have the function of changing fresh air, and there are still many technical problems to be solved in the products with the function of changing fresh air. As shown in Figure 1, the existing ceiling-mounted four-outlet air conditioner indoor unit sucks indoor air from the air inlet 2' provided on the casing 4' when the air conditioner is running, and discharges it indoors through the air outlet 1' after treatment. . When the air conditioner stopped running, the air guide vane 3 ' on the air outlet would be automatically closed, without the function of changing fresh air. Long-term use reduces the oxygen content of indoor air and increases harmful gases, which will affect human health.

Contents of the invention

In order to solve the problems in the above-mentioned technologies, the object of the present invention is to provide a ceiling-mounted air-conditioning indoor unit exhaust device controlled by a stepping motor.

In order to achieve the above object, the technical solution adopted by the present invention is to provide an exhaust device for a ceiling-mounted air conditioner indoor unit, which includes an indoor unit casing, an air outlet, an air inlet, air guide vanes and a control device, wherein: At least one side of the casing of the indoor unit is provided with an air exhaust port, and flanges are fixed around it, and two exhaust baffles of the same size are arranged inside the air exhaust port, and the air exhaust port is completely blocked. One end of the windshield is respectively supported on the support connected to the casing, and the other end is respectively provided with two linkage gears with opposite rotation directions and a right-angle rotation angle. meshing, the stepper motor is electrically connected with the control device, and the fixed connection flange at the air outlet is connected with the outdoor air duct.

A sealing rubber gasket is provided along the periphery of the flange on the inner side of the air exhaust port.

The effect of the present invention is that the structure enables the air conditioner to have the function of exchanging fresh air. Since the exhaust device of the indoor unit exhausts the air through the air duct, the oxygen content of the indoor air is increased, harmful gases are reduced, and the indoor air is fresh. , Improve the health level of the human body.

Description of drawings

Figure 1 is a structural schematic diagram of a general ceiling-mounted air conditioner indoor unit;

Fig. 2 is A-A sectional view of Fig. 1;

Fig. 3 is a structural schematic diagram of an exhaust device for a ceiling-mounted air conditioner indoor unit of the present invention;

Fig. 4 is the A direction view of Fig. 3;

FIG. 5 is an enlarged view of part I of FIG. 3 .

Detailed ways

The exhaust device of the ceiling-mounted air conditioner indoor unit of the present invention will be further described in detail below in conjunction with the drawings and embodiments.

The structure of the exhaust device of the ceiling-mounted air-conditioning indoor unit of the present invention includes the housing of the indoor unit, the air outlet, the air inlet, the wind guide vane, the outdoor air pipe and the control device, and at least one side of the indoor unit housing 1 An air outlet 9 is arranged on the top, and the fixed connection flange 5 at the air outlet 9 is connected with the outdoor air duct. A sealing rubber pad 4 is provided along the periphery of the flange 5 inside the air exhaust port 9, and the air exhaust port 9 is connected with the outdoor air duct. Two exhaust baffles 2 of the same size are arranged in the exhaust outlet 9, and the exhaust outlet 9 is blocked completely. One end of the two exhaust baffles 2 is respectively supported on the support 3 connected to the shell 1, Its other end is respectively provided with the linkage gear 6,8 that the rotation angle opposite to the rotation direction is a right angle, the gear 6,8 meshes with the gear fixed on the motor shaft of the stepping motor 7 on the casing 1, and the stepping motor 7 and the control device electrical connection.

As shown in Figures 3, 4, and 5, the flange 5 is connected by riveting or spot welding on the shell 1, and then the sealing rubber pad 4 is pasted on the inside of the air exhaust port 9. One end of the exhaust baffle 2 has a linkage gear 6, and the other end Directly supported by the support 3, the stepper motor 7 is fastened on the shell 1 with screws, and the other exhaust baffle uses a linkage gear 8 opposite to the rotation direction of the exhaust baffle 2. When the stepper motor 7 was running, the two exhaust baffles rotated 90 ° of angles in the opposite direction, so that the exhaust port 9 was fully opened. After the air exhaust finishes, the stepper motor 7 resets, and the air exhaust baffle 2 gets back to the initial position, and is close to the sealing rubber pad 4, so as to ensure that the operation such as cooling and heating does not leak.

Ceiling-type air conditioners with fresh air function use the exhaust device of the indoor unit to ventilate outward through the air duct. The profile of the air-conditioning indoor unit with exhaust device is similar to that shown in Figure 2, only an exhaust device is added on the two sides of the shell, and at least one side is provided with an exhaust device. When the air conditioner is not in use, exhaust air operation is possible. When the air exhaust function is running, the stepper motor 7 opens the air exhaust baffle 2 at an angle of 90° through the linkage gears 6 and 8. Since the air guide vanes 3' (Fig. 1) are closed, when the fan is running, the indoor air passes through the air exhaust Outlet 9 is discharged, and connecting flange 5 is set at the exhaust outlet, which can be connected with the pipeline air duct. After the air exhaust finishes, the stepping motor 7 resets, and the air exhaust baffle 2 gets back to the initial position, and is close to the sealing rubber pad 4, so as to ensure that the operation such as cooling and heating does not leak.

Claims (2)

1. the air exhausting device of a ceiling type indoor apparatus of air conditioner, include the shell of indoor set, air outlet, air inlet, wind blade, outdoor air conduit and control device, it is characterized in that: at least one side of described indoor set shell (1), be provided with exhaust outlet (9), around it, be fixed with flange (5), in exhaust outlet (9), be provided with the identical wind-discharging baffle of two block sizes (2), and it is exhaust outlet (9) retaining is full, one end of two wind-discharging baffles (2) is supported on respectively on the bearing (3) that is connected in shell (1), the angle of rotation that its other end is respectively equipped with direction of rotation is the linkage gear (6 at right angle, 8), linkage gear (6,8) be meshed with the gear that is fixed on last stepper motor (7) motor shaft of shell (1), stepper motor (7) is electrically connected with described control device, and the fixedly connected flange of locating at exhaust outlet (9) (5) is connected with outdoor air conduit.

2. the air exhausting device of ceiling type indoor apparatus of air conditioner according to claim 1 is characterized in that: the inboard at exhaust outlet (9) is provided with seal gasket (4) along flange (5) periphery.

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