Fresh air and rainwater filtering separation and air volume control device for rail transit air conditioner

Abstract

The utility model discloses a fresh air and rainwater filtering separation and air volume control device for a rail transit air conditioner, which comprises a main body frame, an air inlet, an air outlet opposite to the air inlet, an air inlet area close to the air inlet, and an air outlet area close to the air outlet. The fan blades are rotatably arranged at the air inlet and used for controlling the air inlet amount of the air inlet; the grids are arranged in the air inlet area and the air outlet area respectively, the grid located in the air inlet area is used for separating rainwater in fresh air passing through the fan blades, and then the rainwater enters the compartment after passing through the grid in the air outlet area.

Description

Technical Field

[0001] This utility model relates to the field of rail transit air conditioning technology, and in particular to a fresh air and water filtration and separation device and air volume control device for rail transit air conditioning. Background Technology

[0002] As the world economy develops rapidly, people have increasingly higher demands for convenience and comfort when traveling. Rail transit, with its unique advantages of convenience and speed, has become the preferred mode of transportation for urban residents.

[0003] Onboard air conditioning and ventilation units are an important component of rail vehicle systems and play a vital role in ensuring passenger comfort.

[0004] Urban rail transit train air conditioning systems often have different requirements for return air volume and fresh air volume. They often use independent rainwater separation structures as well as air valve and actuator structures for control. However, their rainwater filtration and separation and air volume regulating valves are usually quite complex in mechanism and are made of aluminum alloy profiles, which increases costs. Furthermore, the processing of parts and subsequent installation are also quite complicated.

[0005] Therefore, it is necessary to provide a new rainwater and wind water filtration and separation device and air volume control device for rail transit air conditioning to solve the above problems. Utility Model Content

[0006] This utility model provides a fresh air and water filtration and separation device and air volume control device for rail transit air conditioning to solve the above problems.

[0007] The objective of this utility model is achieved through the following technical solution:

[0008] A device for filtering and separating rainwater and airflow for air conditioning in rail transit includes:

[0009] The main frame has an air inlet and an air outlet opposite to the air inlet. The area near the air inlet is the air inlet area, and the area near the air outlet is the air outlet area.

[0010] Fan blades, which are rotatably disposed at the air inlet, are used to control the air intake volume of the air inlet;

[0011] The grilles are respectively installed in the air intake area and the air outlet area. The grille in the air intake area is used to separate rainwater in the fresh air passing through the fan blades, and then the rainwater enters the carriage after passing through the grille in the air outlet area.

[0012] In one embodiment, a rotary actuator is further included, which is connected to the main frame. The rotating part of the actuator is connected to the fan blades via a connecting shaft, and the fan blades are driven to rotate along the axis of the shaft via the connecting shaft.

[0013] In one embodiment, the main frame is further provided with a connecting groove, and a filter frame is connected in the connecting groove. The filter frame is located between the air inlet area and the air outlet area and is used to filter particulate matter in the fresh air that enters after passing through the air inlet area.

[0014] In one embodiment, an elastic element is provided on the filter frame at the inner wall corresponding to the connecting groove, and the filter frame is elastically connected to the connecting groove through the elastic element.

[0015] In one embodiment, a filter screen is connected inside the filter frame, the filter screen frame has a thickness of 7mm, and the filter screen is two layers of 30-mesh yarn.

[0016] In one embodiment, the bottom surface of the main frame is inclined toward the air inlet to allow moisture to flow out of the air inlet under gravity. The grille located in the air inlet area is parallel to the bottom of the main frame to allow fresh air to rise in height and separate out moisture.

[0017] In one embodiment, the two sides of the fan blade are rotatably connected to the frame of the main body through a connecting shaft.

[0018] Compared with the prior art, the beneficial effects of this utility model include at least the following:

[0019] The fan blades are rotatably mounted on the main frame, and the opening and closing angle of the blades controls the amount of fresh air intake. Additionally, grilles are installed on the main frame near the air intake to prevent rainwater from entering the carriage. The fresh air then passes through grilles near the air outlet, which direct the airflow into the train's interior. This compact and highly integrated structure effectively blocks rainwater and provides fresh air to the carriage interior. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the control component according to an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the hidden side plate of the control component according to an embodiment of the present invention;

[0022] Figure 3 This is an exploded view of the control component and filter frame according to an embodiment of the present invention;

[0023] Figure 4 This is a side view of the hidden side plate of the control component according to an embodiment of the present utility model.

[0024] Figure 5 This is a schematic diagram of the control component fan blade flipping state structure according to an embodiment of the present invention.

[0025] In the diagram: 1. Main frame; 11. Air inlet; 111. Air inlet area; 12. Air outlet; 121. Air outlet area; 2. Fan blades; 3. Grille; 4. Rotary actuator; 41. Rotating part; 42. Rotating shaft; 5. Connecting groove; 51. Filter frame; 52. Elastic element; 53. Filter screen; 6. Connecting shaft. Detailed Implementation

[0026] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0027] The terms used to describe position and direction in this utility model are illustrated with the accompanying drawings, but changes can be made as needed, and all such changes are included within the scope of protection of this utility model.

[0028] Reference Figure 1-5 This utility model provides a new wind and rain water filtration and separation and air volume control device for rail transit air conditioning, including: a main frame 1, fan blades 2 and a grille 3.

[0029] The main frame 1 has an air inlet 11 and an air outlet 12 opposite to the air inlet 11. The area near the air inlet 11 is the air inlet area 111, and the area near the air outlet 12 is the air outlet area 121. When installed, the air inlet 11 of the main frame 1 is located on the outer side of the carriage, and the air outlet 12 is located on the inner side of the carriage.

[0030] The fan blades 2 are rotatably mounted at the air inlet 11 to control the air intake volume of the air inlet 11. The fan blades 2 are rotatably connected to the opening of the air inlet 11. When closed, the fan blades 2 block the air inlet 11. When open, the fan blades 2 open at a certain angle relative to the air inlet 11, and fresh air bypasses the fan blades 2 and enters the main frame 1 through the air inlet 11.

[0031] The grilles 3 are respectively installed in the air intake zone 111 and the air outlet zone 121. The grille 3 located in the air intake zone 111 is used to separate rainwater from the fresh air passing through the fan blades 2. After passing through the grille 3 in the air outlet zone 121, the rainwater enters the vehicle compartment. After the fresh air enters, it is blocked and turbulent by the grille 3. The rainwater flows down the grille 3 and eventually falls down, and will not enter the vehicle compartment with the fresh air.

[0032] The integrated design allows for easy control of the fresh air intake 11 by adjusting the opening angle of the fan blades 2. The fresh air then flows downwards under the guidance of the grille 3, preventing rainwater from entering the vehicle interior along with the fresh air. This simplified structure balances flexible control of the fresh air intake with the function of blocking rainwater. During installation, the entire device can be installed in one place, eliminating the need for multiple separate devices to independently control the air intake and block rainwater.

[0033] In one embodiment, a rotary actuator 4 is further included. The rotary actuator 4 is connected to the main frame 1. The rotating part 41 of the actuator is connected to the fan blade 2 via a connecting shaft 42. The fan blade 2 is driven to rotate along the axis of the shaft 42. The rotary actuator 4 specifically includes a connected main body and a rotatable annular sleeve. The inner side of the annular sleeve is connected to the shaft 42. By driving the shaft 42 to rotate, the fan blade 2 is driven to flip at a specified angle and maintain the current air intake volume, which can be flexibly adjusted.

[0034] In one embodiment, the main frame 1 is further provided with a connecting groove 5, and a filter frame 51 is connected in the connecting groove 5. The filter frame 51 is located between the air inlet zone 111 and the air outlet zone 121, and is used to filter particulate matter in the fresh air entering after passing through the air inlet zone 111. The connecting groove 5 is a vertically formed strip groove on the main frame 1, and its shape is similar to the cross-sectional shape of the filter frame 51. The filter frame 51 can be inserted into the connecting groove 5. When the fresh air passes through the air inlet zone 111, the dust and particulate matter in the fresh air will be blocked on the surface of the filter screen 53 inside the filter frame 51, which can effectively filter the particulate matter and dust in the fresh air and prevent dust and particulate matter from being sucked into the interior of the vehicle.

[0035] Preferably, an elastic element 52 is provided on the filter frame 51 corresponding to the inner wall of the connecting groove 5, and the filter frame 51 is elastically connected to the connecting groove 5 through the elastic element 52. The elastic element 52 can be a spring or, for example, a curved elastic metal sheet as shown in the figure. By elastically abutting against the inner wall of the connecting groove 5, the filter frame 51 can be elastically connected to the connecting groove 5, facilitating the installation and removal of the filter screen. When removing the filter, pulling the handle on the filter frame 51 allows the entire filter screen to be replaced.

[0036] Preferably, a filter screen 53 is connected inside the filter frame 51, the filter frame has a thickness of 7mm, and the filter screen 53 is two layers of 30-mesh yarn.

[0037] Preferably, the bottom surface of the main frame 1 is inclined towards the air inlet 11 to allow moisture to flow out from the air inlet 11 under gravity. The grille 3 located in the air intake area 111 is parallel to the bottom of the main frame 1, allowing fresh air to rise and separate moisture. The angle between the grille 3 and the horizontal plane can be 45 degrees, and it is inclined upward in the direction of air intake. The airflow climbs upward, and rainwater slides down the inclined surface of the grille 3, thereby effectively blocking external rainwater and preventing rainwater from entering the interior of the vehicle.

[0038] Preferably, the two sides of the fan blade are rotatably connected to the frame of the main body frame 1 via the connecting shaft 6, in order to balance the torque of the fan blade under the drive of the airflow, which is concentrated on the rotating shaft 42 of the actuator.

[0039] The bottom of the main frame 1, between the fan blades 2 and the filter screen 53, also has a second air inlet 11. The second air inlet 11 can increase the intake path of fresh air. The fresh air entering from the bottom and facing upward will not carry rainwater and is clean fresh air, which greatly ensures the supply of fresh air in the carriage.

[0040] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention, and all such changes should fall within the protection scope of the claims of the present invention.

Claims

1. A rail transit air conditioning fresh air and rainwater filtering and separating and air volume control device, characterized in that, The utility model relates to a kind of air conditioning, including: Main frame, the main frame has air inlet and air outlet opposite to air inlet, the area close to air inlet is air inlet area, the area close to air outlet is air outlet area; Fan blade, the fan blade is rotatably arranged at the air inlet, for controlling the air intake of the air inlet; Grating, the grating is arranged in the air inlet area and air outlet area respectively, the grating in air inlet area is used to separate rain in fresh air passing through fan blade, then after passing through the grating of air outlet area, into the compartment.

2. The rail transit air conditioning fresh air and rainwater filtering and separating and air volume control device according to claim 1, characterized in that, It further includes rotating actuator, the rotating actuator is connected on main frame, the rotating part of the actuator is connected with the fan blade by connecting shaft, and the fan blade is rotated along the axis of the connecting shaft by the connecting shaft.

3. The rail transit air conditioning fresh air and rainwater filtering and separating and air volume control device according to claim 2, characterized in that, The main frame is further provided with connecting groove, the filter frame is connected in the connecting groove, and the filter frame is located between air inlet area and air outlet area, for filtering particulate matter in fresh air after entering air inlet area.

4. The rail transit air conditioning fresh air and rainwater filtering and separating and air volume control device according to claim 3, characterized in that, The filter frame is provided with elastic member at the inner wall corresponding to the connecting groove, and the filter frame is elastically connected in the connecting groove by the elastic member.

5. The rail transit air conditioning fresh air and rainwater filtering and separating and air volume control device according to claim 3, characterized in that, Filter screen is connected in the filter frame, the thickness of the filter frame is 7mm, and the filter screen is two layers of 30-mesh gauze.

6. The rail transit air conditioning fresh air and rainwater filtering and separating and air volume control device according to claim 3, characterized in that, The bottom surface of the main frame is inclined to air inlet, for making moisture flow out from air inlet under the action of gravity, the grating in air inlet area and the bottom of main frame are parallelly arranged, so that fresh air climbs height and separates moisture.

7. The rail transit air conditioning fresh air and rainwater filtering and separating and air volume control device according to claim 4, characterized in that, The two sides of the fan blade are rotatably connected with the frame of the main frame by connecting shaft, and the bottom of the main frame is further provided with second air inlet between the fan blade and the filter screen.

Images