Energy-saving fresh air control device of central air conditioner

Abstract

The utility model discloses a central air conditioner energy-saving fresh air control device which comprises a fresh air machine box, a fresh air outlet is formed in one side of the fresh air machine box and is of a detachable grid structure, a fresh air inlet is formed in the surface of the other side of the fresh air machine box, a filtering structure is arranged in the fresh air inlet, and a fresh air outlet is formed in the surface of the other side of the fresh air machine box. The filter structure filters air entering the device through a filter screen, and dust and impurities in the air are prevented from entering a room along with a fresh air system of the air conditioner. According to the energy-saving fresh air control device for the central air conditioner, the bolt is arranged at the circle center of the filter screen, the connecting block and the turbofan are rotationally arranged on the surface of the bolt, the connecting rod and the brush are arranged on the outer surface of the connecting block, the turbofan is driven by wind power at the fresh air inlet to rotate, the surface of the filter screen is cleaned by the brush, and the bolt and the filter screen are detachable, so that the filter screen is convenient to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of fresh air fans, in particular to an energy-saving fresh air control device for a central air conditioner. Background Art

[0002] The fresh air fan in the central air conditioner is one of the devices at the end of the central air conditioner. It is an effective air purification device. The fresh air fan transports fresh air from outdoor to indoor and discharges indoor air to the outside, so that the indoor air quality remains stable.

[0003] At present, the fresh air fan is equipped with an air filter inside. After the fresh air fan has been working for a period of time, a large amount of dust will adhere to the air filter. The user needs to clean the filter, otherwise the workload of the fresh air fan will increase and energy consumption will increase. Utility Model Content

[0004] The purpose of the utility model is to provide an energy-saving fresh air control device for a central air conditioner. The device is provided with a rotating connecting rod on the filter surface at the fresh air inlet to drive the brush to move and clean the filter surface to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a central air-conditioning energy-saving fresh air control device, comprising a fresh air case, a fresh air outlet is arranged on one side of the fresh air case, the fresh air outlet is a detachable grille structure, a fresh air inlet is arranged on the other side surface of the fresh air case, a filter structure is arranged inside the fresh air inlet, and the filter structure uses a filter to filter the air entering the device to prevent dust and debris in the air from entering the room along with the fresh air system of the air conditioner.

[0006] Preferably, the filtering structure includes a filter screen, which is installed on the inner wall of the fresh air inlet, and the filter screen is detachable from the inner wall of the fresh air inlet. A bolt is provided at the center of the filter screen, and the bolt is threadedly connected to the filter screen. A connecting block is rotatably installed on one end of the bolt, and a turbofan is provided on one side of the connecting block. Two connecting rods are symmetrically provided on the outer surface of the connecting block, and a brush is provided on the surface of the connecting rod to contact the surface of the filter screen.

[0007] By adopting the above technical solution, wind force is used to drive the turbofan to rotate, thereby realizing the rotation of the connecting rod. The rotation of the connecting rod drives the brush to move to clean the surface of the filter to prevent dust from clogging the filter.

[0008] Preferably, the inner wall of the fresh air inlet is provided with an air volume reminder structure, which utilizes a baffle to move under the action of wind to realize a reminder to disassemble and clean the filter when there is too much dust on the filter surface affecting the air intake.

[0009] By adopting the above technical solution, the reminder structure can be used to remind the user to disassemble and clean the filter.

[0010] Preferably, the air volume reminder structure includes a baffle, which is slidably installed on the inner wall of the fresh air inlet, a spring is provided on one side of the baffle, and the other end of the spring is fixed to the inner wall of the fresh air inlet, the lower end of the baffle is connected to electric contact 1, one side of the electric contact 1 is provided with electric contact 2, and electric contact 2 is installed on the inner wall of the fresh air inlet at the same horizontal line as electric contact 1, an alarm is provided on the outer surface of the fresh air inlet, the electric contact 2 is electrically connected to the alarm, and the electric contact 1 is connected to a power supply.

[0011] With the above technical solution, when the filter has been used for a long time, the brush on the surface cannot effectively clean the filter. At this time, the wind force at the fresh air inlet weakens, causing the alarm to work when the reminder structure works, reminding the user to disassemble and clean the filter.

[0012] Preferably, a monitor is provided on the upper surface of the fresh air chassis, the end of the monitor is in contact with the outdoor air, and the monitor is connected to the fan control circuit inside the fresh air chassis.

[0013] By adopting the above technical solution, a monitor is used to detect the outdoor air quality in real time and provide feedback to the fresh air fan. When the outside air quality is poor, the fresh air fan is stopped to achieve energy-saving effects.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the central air-conditioning energy-saving fresh air control device:

[0015] 1. A bolt is arranged at the center of the filter screen of the device, a connecting block and a turbofan are arranged on the surface of the bolt for rotation, a connecting rod and a brush are arranged on the outer surface of the connecting block, and the wind force at the fresh air inlet is used to drive the turbofan to rotate, so that the brush can clean the surface of the filter screen, and the bolt and the filter screen are detachable, so that the filter screen can be easily cleaned;

[0016] 2. This device is equipped with a baffle at the fresh air inlet. The baffle moves with the incoming air. When the dust on the filter surface cannot be effectively cleaned by the brush and the incoming air is reduced, the baffle drives the electrical contact 1 and the electrical contact 2 below to contact, so that the alarm circuit is connected, reminding the user to disassemble and clean the filter;

[0017] 3. This device sets a monitor on the surface of the fresh air fan to monitor the outdoor air in real time. When the outdoor air quality is not as good as the indoor air quality, the monitor will give feedback to the fresh air fan and stop the operation of the central air conditioning fresh air fan to achieve energy saving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the top view structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0020] Figure 3 This is a rear view structural diagram of the fresh air inlet of the utility model;

[0021] Figure 4 This is a side view structural diagram of the reminder structure of the utility model;

[0022] In the figure: 1. Fresh air chassis; 2. Fresh air outlet; 3. Fresh air inlet; 4. Filter; 5. Bolts; 6. Connecting block; 7. Turbofan; 8. Connecting rod; 9. Brush; 10. Baffle; 11. Spring; 12. Electrical contact one; 13. Electrical contact two; 14. Alarm; 15. Monitor. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides a technical solution: a central air-conditioning energy-saving fresh air control device, including a fresh air case 1, a fresh air outlet 2, a fresh air inlet 3, a filter 4, a bolt 5, a connecting block 6, a turbofan 7, a connecting rod 8, a brush 9, a baffle 10, a spring 11, an electric contact 12, an electric contact 2 13, an alarm 14, and a monitor 15.

[0025] This device has the effect of preventing dust and debris from entering the room with the fresh air system, specifically:

[0026] A fresh air outlet 2 is arranged on one side of the fresh air case 1, and the fresh air outlet 2 is a detachable grille structure. A fresh air inlet 3 is arranged on the surface of the other side of the fresh air case 1, and a filtering structure is arranged inside the fresh air inlet 3. The filtering structure uses a filter 4 to filter the air entering the device to prevent dust and debris in the air from entering the room along with the fresh air system of the air conditioner. The filtering structure includes a filter 4, and the filter 4 is installed on the inner wall of the fresh air inlet 3. The filter 4 and the inner wall of the fresh air inlet 3 are detachable. A bolt 5 is arranged at the center of the filter 4, and the bolt 5 and the filter 4 are connected by a thread. A connecting block 6 is rotatably installed on one end of the bolt 5, and a turbofan 7 is arranged on one side of the connecting block 6. Two connecting rods 8 are symmetrically arranged on the outer surface of the connecting block 6. A brush 9 is arranged on the surface of the connecting rod 8 to contact the surface of the filter 4. The end of the monitor 15 is in contact with the outdoor air, and the monitor 15 is connected to the fan control circuit inside the fresh air case 1;

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, the fresh air case 1 of the central air conditioner is started, and outdoor air is drawn in from the fresh air inlet 3 and enters the room from the fresh air outlet 2. During the operation of the fresh air case 1, the monitor 15 always monitors the outdoor air quality. When the outdoor air quality is not as good as the indoor air quality, the monitor 15 controls the fan in the fresh air case 1 to stop working, so as to achieve the effect of energy saving. When the air enters from the fresh air inlet 3, the wind force drives the turbofan 7 to rotate, and the rotation of the turbofan 7 drives the connecting block 6 to rotate, and the rotation of the connecting block 6 drives the connecting rods 8 on both sides to rotate, and the connecting rod 8 drives the brush 9 to move on the surface of the filter 4, so as to clean the filter 4 and prevent dust from clogging the filter 4. The filter 4 is detachable from the fresh air inlet 3, and the turbofan 7 and the connecting block 6 can be removed from the surface of the filter 4 by bolts 5, so as to facilitate manual cleaning of the filter 4.

[0028] This device has the effect of reminding you to clean the filter, specifically:

[0029] The inner wall of the fresh air inlet 3 is provided with an air volume reminder structure, which uses a baffle 10 to move under the action of wind to realize a reminder to disassemble and clean the filter 4 when there is too much dust on the surface of the filter 4 and the air intake is affected. The air volume reminder structure includes a baffle 10, which is slidably mounted on the inner wall of the fresh air inlet 3, a spring 11 is arranged on one side of the baffle 10, and the other end of the spring 11 is fixed to the inner wall of the fresh air inlet 3, an electric contact 1 12 is connected to the lower end of the baffle 10, an electric contact 2 13 is arranged on one side of the electric contact 1 12, and the electric contact 2 13 is installed on the inner wall of the fresh air inlet 3 at the same horizontal line as the electric contact 1 12, an alarm 14 is arranged on the outer surface of the fresh air inlet 3, the electric contact 2 13 is electrically connected to the alarm 14, and the electric contact 1 12 is connected to the power supply;

[0030] like Figure 1 and Figure 4 As shown, after using the fresh air system of the air conditioner for a long time, the brush 9 on the surface of the filter 4 is not sufficient to completely clean the dust on the surface of the filter 4. After the filter 4 is blocked by dust, the wind force at the fresh air inlet 3 is reduced. When the wind force at the fresh air inlet 3 is normal, the wind force pushes the baffle 10 from the right to move to the left, stretching the spring 11, and the movement of the baffle 10 drives the electric contact 1 12 to move to the left and separate from the electric contact 2 13. When the wind force weakens, the baffle 10 loses the push of the wind force and moves to the right under the action of the spring 11, driving the electric contact 1 12 to contact the electric contact 2 13, so that the circuit at the alarm 14 is connected, and the alarm 14 reminds the user to disassemble and clean the filter 4.

[0031] Working principle: When using the central air-conditioning energy-saving fresh air control device, start the fresh air case 1, draw outdoor air in from the fresh air inlet 3, and enter the room from the fresh air outlet 2. When the outdoor air quality is not as good as the indoor air quality, the monitor 15 controls the fan in the fresh air case 1 to stop working, so as to achieve the energy-saving effect. The wind drives the turbofan 7 to rotate, driving the connecting rod 8 and the brush 9 to move on the surface of the filter 4, thereby cleaning the filter 4 and preventing dust from clogging the filter 4. When the dust on the surface of the filter 4 affects the air intake of the device, the alarm 14 works under the connection of the electrical contact 1 12 and the electrical contact 2 13, reminding the user to disassemble and clean the filter 4, thereby increasing the overall practicality.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A central air conditioning energy-saving fresh air control device, comprising a fresh air case (1), a fresh air outlet (2) being arranged on one side of the fresh air case (1), the fresh air outlet (2) being a detachable grille structure, and a fresh air inlet (3) being arranged on the other side surface of the fresh air case (1), characterized in that: A filtering structure is arranged inside the fresh air inlet (3), and the filtering structure uses a filter screen (4) to filter the air entering the device to prevent dust and debris in the air from entering the room along with the fresh air system of the air conditioner. The filtering structure comprises a filter screen (4), and the filter screen (4) is installed on the inner wall of the fresh air inlet (3). The filter screen (4) and the inner wall of the fresh air inlet (3) are detachable. A bolt (5) is arranged at the center of the filter screen (4), and the bolt (5) and the filter screen (4) are connected by a thread. A connecting block (6) is rotatably installed at one end of the bolt (5), and a turbofan (7) is arranged on one side of the connecting block (6). Two connecting rods (8) are symmetrically arranged on the outer surface of the connecting block (6), and a brush (9) is arranged on the surface of the connecting rod (8) to contact the surface of the filter screen (4).

2. A central air-conditioning energy-saving fresh air control device according to claim 1, characterized in that: The inner wall of the fresh air inlet (3) is provided with an air volume reminder structure, which utilizes a baffle (10) to move under the action of wind force to remind the filter (4) to be disassembled and cleaned when there is too much dust on the surface of the filter (4) affecting the air intake.

3. A central air-conditioning energy-saving fresh air control device according to claim 2, characterized in that: The air volume reminder structure comprises a baffle (10), the baffle (10) is slidably mounted on the inner wall of the fresh air inlet (3), a spring (11) is arranged on one side of the baffle (10), and the other end of the spring (11) is fixed on the inner wall of the fresh air inlet (3), the lower end of the baffle (10) is connected to an electric contact 1 (12), one side of the electric contact 1 (12) is arranged to an electric contact 2 (13), and the electric contact 2 (13) is installed on the inner wall of the fresh air inlet (3) at the same horizontal line as the electric contact 1 (12), an alarm (14) is arranged on the outer surface of the fresh air inlet (3), the electric contact 2 (13) is electrically connected to the alarm (14), and the electric contact 1 (12) is connected to a power source.

4. A central air-conditioning energy-saving fresh air control device according to claim 1, characterized in that: A monitor (15) is provided on the upper surface of the fresh air machine box (1), the end of the monitor (15) is in contact with the outdoor air, and the monitor (15) is connected to the fan control circuit inside the fresh air machine box (1).

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