KR20000000108U - External air blocking and control damper device for passenger cars - Google Patents

Abstract

The present invention discloses a passenger air blocker and an adjustable damper device. According to the present invention, the door is rotatably installed around the shaft in the air duct duct having an air vent in order to introduce external air into the cabin. The door is rotated by the return elastic force of the spring to close the ventilation opening, the wire fixed to one side of the door is wound around the drive shaft of the actuator, the wire is wound by the rotation of the drive shaft to open the closed door. A stopper is mounted on the drive shaft of the actuator, and the stopper is locked by the lock of the solenoid to keep the door open. When the passenger car enters the tunnel, the stopper and the lock are released so that the ventilation holes of the duct are closed by the rotation of the door by the spring return force, which blocks the inflow of outside air. The clouding phenomenon is prevented. In addition, the flow rate of the outside air introduced through the air vent of the duct is adjusted according to the component ratio of the carbon dioxide present in the air of the cabin to maintain a comfortable environment of the cabin.

Description

External air blocking and control damper device for passenger cars

The present invention relates to a vehicle ventilation apparatus, and more particularly, to a passenger air blocker and control damper device that can block the air flowing into the cabin through the air vent duct vents or adjust the amount of air inlet.

As is well known, an air conditioner is installed on the roof of the car to keep the temperature of the cabin in a comfortable state. The air conditioner supplies cool air into the cabin during the summer, and performs a ventilation function for introducing fresh air into the room outside the summer. Air conditioners are generally installed in separate units at the front and rear of the roof for cooling efficiency because the interior space of the cabin is large. An air conditioner outside air duct is installed in the air conditioner of the passenger car to guide the outside air to the blowing chamber, and a damper for controlling only the flow rate of air is installed in the air vent of the outside air duct so as to be rotatable by driving the damper actuator. Therefore, when the damper rotates by driving the damper actuator, the opening degree of the outside air duct is determined by the rotation of the damper, and accordingly, the flow rate of the external air required for the operation of the ventilation or the air conditioner is adjusted to flow into the vent.

However, when a passenger car passes through a tunnel while the vehicle is in operation, in the conventional air conditioner damper device as described above, when the damper is open, contaminated air in the tunnel enters the cabin through the air vent of the air conditioner duct opened by the damper. Thereby, there was a problem that the air of the cabin became cloudy. That is, in general, since the inside of the tunnel is not well ventilated, it is considerably contaminated by dust and soot. Therefore, when the polluted air inside the tunnel is inflowed through the air vent of the outside air duct, the air in the cabin becomes cloudy. It will be offensive to you.

On the other hand, in the conventional external air control damper device, only the opening degree of the outdoor air duct is determined by the rotation of the damper, and the air inflow is simply adjusted to allow the air inflow to be appropriately responded to the ventilation of the cabin due to the increase of the carbon dioxide generated by the passenger's breathing. There was a problem not to do. That is, if there are a lot of passengers in the car, only a predetermined amount of air is introduced, although fresh air is required to flow more as the proportion of carbon dioxide contained in the air increases as the passengers breathe. Although there should be a difference in the amount of fresh air flowing into the cabin according to the number of passengers, there was a problem that the amount of air introduced into all the cabins is not properly controlled.

Therefore, the present invention is devised to solve the conventional problems as described above, the object of the present invention is a carriage that prevents contaminated air in the tunnel from entering the cabin when the passenger car enters the tunnel and passes through To provide an external air blocking and control damper device.

Another object of the present invention is to provide a passenger air blocker and control damper device for automatically adjusting the amount of fresh air introduced into the room according to the component ratio of carbon dioxide contained in the air in the room.

1 is a front view showing a carriage to which the outside air blocking and control damper device according to the present invention is applied,

Figure 2 is a perspective view showing an embodiment of a damper device according to the present invention,

3 is a block diagram showing a damper device according to the present invention,

4a and 4b is a cross-sectional view showing the operation of the damper device according to the present invention,

5 is a perspective view showing another embodiment of the damper device according to the present invention,

6A through 6C are cross-sectional views illustrating the operation of FIG. 5.

♣ Explanation of symbols for the main parts of the drawing ♣

10: carriage 12: roof

14: Room 16: Air duct

18: vent 20: door

22: shaft 30: spring

32: wire 40, 140: actuator

50, 150: stopper 60, 160: solenoid

70: electromagnetic sensor 80: control unit

90: open switch 92: close switch

100: damper 102: damper actuator

120: carbon dioxide sensor 130: torsion spring

The present invention for achieving the above object and the door is rotatably installed in the air conditioning duct to open or close the vents; Rotating means for rotating the door to open or close; An electromagnetic wave sensor installed on an outer surface of the carriage and detecting tunnel entry and tunnel passage of the carriage; Recognizing the tunnel entry and tunnel passage of the passenger car according to the detection signal of the electromagnetic sensor is composed of a control unit for driving the rotating means to open and close the vent opening.

Car air blocking and control damper device for a carriage according to the present invention is preferably introduced into the room by the damper is properly rotated by the drive of the damper actuator installed in the vent in accordance with the signal of the carbon dioxide detection sensor installed in the room. Control the amount of air

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of an external air blocking and control damper device for a passenger car according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 6a and 6b, 6c is a view showing for explaining the external air blocking and control damper device for a carriage according to the present invention.

As shown in FIG. 1 and FIG. 2, the air conditioner outside air duct 16 having a ventilation opening 18 is installed in the roof 12 of the carriage 10 to introduce outside air into the cabin 12. Ventilation holes 18 of 16 induce outside air to the ventilation chamber of the air conditioner which is not shown in figure, and the blower is provided with the blower for forcibly blowing external air.

As shown in FIG. 2, the air vent 18 of the air conditioner duct 16 is installed such that the door 20 is rotatable about the shaft 22, and an inner surface of the door 20 and a ceiling of the air vent 18. Between the spring 30 to close the vent 18 by rotating the door 20 by the return elastic force is installed therebetween. One end of the wire 32 is fixed to the outer surface of the door 20, and the other end of the wire 32 is fixed to the drive shaft 42 of the actuator 40. When the drive shaft 42 is rotated by the driving of the actuator 40, the wire 32 is wound around the outer circumferential surface of the drive shaft 42.

The stopper 50 is mounted on the drive shaft 42 of the actuator 40, and lugs 52 protrude from the outer circumferential surface of the stopper 50. A solenoid 60 is installed at an adjacent position of the actuator 40, and the solenoid 60 has a lock 62 that can be retracted. The lock 62 of the solenoid 60 selectively holds or releases the lug 52 of the stopper 50.

As shown in FIG. 1 and FIG. 3, the electromagnetic wave sensor 70 is provided on the roof 12 of the carriage 10. The electromagnetic sensor 70 detects that the carriage 10 has entered the tunnel 72 and inputs a detection signal to the controller 80. The controller 80 recognizes the tunnel entry of the vehicle according to the detection signal of the electromagnetic sensor 70 and outputs a control signal. The electromagnetic sensor 70 may use a known frequency sensor or the like, and the controller 80 may be configured by a general microcomputer.

2, 4A and 4B, the opening 18 and the closing switch 92 for detecting the open and closed state of the door 20 is provided in the vent 18 of the air conditioner duct 16, respectively. Is mounted. The open switch 90 is mounted on the bottom of the vent 18, and the close switch 92 is mounted on the ceiling of the vent 18.

On the other hand, inside the air vent 18 of the air conditioner outside air duct 16, a damper 100 capable of adjusting the flow rate of air through the opening degree adjustment of the outside air duct is installed to be rotatable by driving the damper actuator 102. In addition, as shown in FIG. 1, a predetermined carbon dioxide sensor 120 is installed at a predetermined position in the cabin to detect a component ratio of carbon dioxide contained in the air in the cabin. The carbon dioxide sensor 120 is connected to the control unit 80, the control unit 80 is operatively connected to the damper actuator 102 to drive the damper actuator (102).

Another embodiment of opening and closing the door 20 of the present invention is shown in FIG. As shown, the shaft hole 24 and the polygonal shaft hole 26 are formed in the shaft 22 of the door 20 in series. At this time, the polygonal shaft hole 26 is preferably formed to be located at the tip of the shaft (22). Although the polygonal shaft hole 26 was shown to be formed in a hexagon, it may be formed in a pentagon, an octagon, or other square. The outer circumferential surface of the shaft 22 is mounted with a torsion spring 130 for rotating the door 20 to close the vent 18 of the air conditioner duct 16.

On the other hand, the door 20 is rotated by the drive of the actuator 140 to open or close the vents 18, the spline drive shaft 142 of the actuator 140 to be fitted into the polygonal shaft hole (26) 144 is formed, the spline drive shaft 142 is configured to be rotated and moved forward and backward by the support of the sliding bearing 146. The sliding bearing 146 is preferably mounted to support rotation and forward and backward movement of the spline drive shaft 142 on both sides of the casing 148 constituting the actuator 140.

6A, 6B, and 6C, a stopper 150 is installed between the shaft 22 of the door 20 and the actuator 140 to have a polygonal regulation hole 152. The polygonal shaft 144 of the spline drive shaft 142 is fitted into the polygonal regulation hole 152 to regulate the rotation of the spline drive shaft 142. The drive shaft 144 of the actuator 140 is advanced back and forth by the drive of the solenoid 160. In the figure, the solenoid 160 has been shown to be configured in the rear of the actuator 140, the solenoid 160 may be configured integrally with the actuator 140.

Now, the operation of the outside air blocking and control damper device for a passenger car according to the present invention as described above will be described.

First, as shown in FIGS. 1, 4A, and 4B, when the carriage 10 of the air conditioner duct 16 is opened by the door 20, the carriage 10 enters the tunnel 72. The tunnel entry of the carriage 10 is detected by the electromagnetic sensor 70, and the detection signal of the electromagnetic sensor 70 is input to the controller 80.

Meanwhile, the controller 80 recognizes that the carriage 10 has entered the tunnel 72 according to the detection signal input from the electromagnetic sensor 70 and outputs a control signal, and then outputs a control signal to the control signal of the controller 80. Accordingly, the solenoid 60 is driven. When the lock 62 is retracted by the driving of the solenoid 60, the lug 52 of the stopper 50 held by the lock 62 is released while the drive shaft 42 of the actuator 40 is rotatable. Becomes

At this time, the door 20 is rotated about the shaft 22 by the return elastic force of the spring 30, which is tensioned, thereby closing the vent 18 of the air conditioner duct 16. The door 20 continues to rotate and stops in contact with the buffer member 110. The shock absorbing member 110 absorbs the impact force to prevent breakage and noise of the door 20. In the state in which the air vent 18 of the air conditioner duct 16 is completely closed by the door 20, the door 20 turns on the closing switch 92, and the switching signal of the closing switch 92 The controller 80 is input to the controller 80, and the controller 80 determines the closed state of the door 20 according to the switching signal of the close switch 92.

In this way, when the carriage 10 enters the tunnel 72, the air vent 18 of the air conditioner duct 16 is closed by the rotation of the door 20, so the air vent 18 of the air conditioner duct 16 is closed. Air in the tunnel 72 does not flow through. Accordingly, the phenomenon in which the cabin 14 is clouded by contaminated air in the tunnel 72 is prevented, so that the environment of the cabin 14 is kept comfortable.

When the carriage 10 passes through the tunnel 72, the controller 80 recognizes that the carriage 10 passes through the tunnel 72 according to a detection signal input from the electromagnetic sensor 70, and controls the control signal. The actuator 40 is driven according to the control signal of the controller 80. When the drive shaft 42 is rotated by the driving of the actuator 40, the wire 20 is wound around the outer circumferential surface of the drive shaft 42 to pull the door 20 in the closed state. As a result, the air vent 16 of the air conditioner duct 16 which is closed by the door 20 rotating about the shaft 22 is opened again. When the door 20 is completely rotated to come in contact with the open switch 90 to turn on the open switch 90, the switching signal of the open switch 90 is input to the controller 80. At this time, the controller 80 recognizes the open state of the door 20 according to the switching signal of the open switch 92 and outputs a control signal. The solenoid 60 is driven to advance the lock 62 according to the control signal of the controller 80, and the drive shaft 42 is held by the lug 52 of the stopper 50 being held by the advanced lock 62. ) Will no longer rotate. In addition, when the open switch 90 is operated, the controller 80 shuts off the power supply of the actuator 40 and stops the actuator 40 with a short delay time.

On the other hand, while the door 20 is open, the carbon dioxide sensor 120 detects a component ratio of carbon dioxide present in the air inside the cabin 14 and inputs it to the controller 80. The controller 80 emits carbon dioxide. When the component ratio of carbon dioxide is higher than the set value by the detection of the detection sensor 120, the damper actuator 102 is driven. Accordingly, the damper 100 is rotated by driving the damper actuator 102 so that the air conditioner duct The opening degree of the air conditioner 16 is adjusted. When the opening degree of the air conditioner outdoor air duct 16 is increased by the rotation of the damper 100, a larger amount of external fresh air is provided through the vent 18 of the air conditioner outdoor air duct 16. Air enters the cabin, so the cabin again has a proportion of carbon dioxide below the appropriate value.

6A, 6B, and 6C, when tunnel entry of the vehicle is recognized by the electromagnetic sensor 70 and the controller 80 described above, the solenoid 160 is driven in accordance with a control signal of the controller 80. To retract the spline drive shaft 142 of the actuator 140, thereby causing the polygonal shaft 144 of the spline drive shaft 142 to the polygonal shaft hole 26 of the shaft 22 and the polygonal control hole of the stopper 150 The spline drive shaft 142 is rotatable while being removed from the 152. In this state, the door 20, which receives the elastic force of the torsion spring 130, is rotated about the shaft 22 to close the air vent 18 of the air conditioner duct 16, so that the air in the cabin 14 Turbidity caused by contaminated air in the tunnel 72 is prevented, so that the cabin 14 remains comfortable even when the train passes through the terminal.

On the other hand, after the carriage 10 passes through the tunnel 72, the controller 80 recognizes that the carriage 10 has passed through the tunnel 72 according to the detection signal input from the electromagnetic sensor 70, the control signal The solenoid 160 is driven according to the control signal of the controller 80. By driving the solenoid 160, the polygonal shaft 144 of the spline drive shaft 142 is fitted into the polygonal shaft hole 26 of the door 20, and the polygonal shaft 144 of the spline drive shaft 142 is a stopper 150. It is located away from the polygonal control hole 152 of the (). Accordingly, when the spline drive shaft 142 is rotated by the actuator 140, the door 20 is rotated about the shaft 22 to open the vent 18 of the air conditioner duct 16.

Then, when the door 20 is opened and in contact with the open switch 90 to turn on the open switch 90, the switching signal of the open switch 90 is input to the control unit 80, and the control unit 80 opens the open switch. In response to the switching signal of 92, the open state of the door 20 is recognized and a control signal is output. The solenoid 160 is driven according to the control signal of the controller 80 so that the polygonal shaft 144 is fitted together into the polygonal shaft hole 26 of the shaft 22 and the polygonal regulation hole 152 of the stopper 150. The spline drive shaft 142 is retracted, thereby restricting the rotation of the spline drive shaft 142 to maintain the closed state of the door 20.

The above embodiments are merely illustrative of the embodiments of the present invention, the scope of application of the present invention is not limited to the above embodiments and can be appropriately changed within the scope of the same idea. For example, the shape and structure of each component specifically shown in the embodiment of the present invention can be modified. In addition, the present invention can be applied to buses, trains, and the like in addition to passenger cars.

As described above, according to the outside air blocking and control damper device for a passenger carriage according to the present invention, when the passenger vehicle enters the tunnel, the vehicle detects the entrance of the tunnel and automatically rotates the door to close the ventilation opening of the duct to the cabin through the ventilation opening of the duct. By blocking the inflow of air, the phenomenon that the cabin becomes clouded by the polluted air in the tunnel is prevented. In addition, the flow rate of the outside air introduced through the air vent of the duct is adjusted according to the component ratio of the carbon dioxide present in the air of the cabin to maintain a comfortable environment of the cabin.

Claims (4)

A door 20 rotatably installed in the air conditioner duct 16 to open or close the vent 18; Rotating means for rotating the door 20 to open or close; An electromagnetic wave sensor 70 installed on an outer surface of the carriage 10 and detecting a tunnel entry and a tunnel passage of the carriage 10; Car air outside blocker comprising a control unit 80 for recognizing the tunnel entry and tunnel passage of the vehicle according to the detection signal of the electromagnetic wave sensor 70 to drive the rotating means to open and close the ventilation opening 18 And regulating damper device. The method of claim 1, wherein the rotating means, A spring 30 held between the vent hole 18 and an inner surface of the door 20 to elastically support the door 20; An actuator (40) having a drive shaft (42) on which a wire (32) fixed to an outer surface of the door (20) is wound; A stopper (50) mounted to the drive shaft (42) of the actuator (40), the lug (52) protruding from an outer circumferential surface thereof; Car air blocking and control damper device consisting of a solenoid (60) having a lock (62) to selectively engage or release the lug (52) of the stopper (50). The method of claim 1, wherein the rotating means, A torsion spring (130) mounted on the shaft (22) to elastically support the door (20); It has a spline drive shaft 142 that can rotate and move forward and backward to selectively fit into the shaft hole 24 and the polygonal shaft hole 26 formed in the shaft 22, and the outer peripheral surface of the spline drive shaft 142 An actuator 140 on which an axis 144 is formed; A stopper 150 having a restriction hole 152 to which the polygonal shaft 144 is selectively fitted so that rotation of the spline drive shaft 142 is restricted; Car air blocking and control damper device consisting of a solenoid (160) for selectively advancing the spline drive shaft (142) of the actuator (140). The damper actuator of claim 1, wherein the controller 80 is driven by the damper actuator 102 installed in the vent hole 18 according to a detection signal of the carbon dioxide sensor 120 installed in the cabin 14. External blocker and control damper device for a passenger carriage, characterized in that for controlling the flow rate by rotating 100).