KR101073581B1 - Air diffuser - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air diffuser provided in an air duct structure of a railroad car air conditioner. In particular, the uniform air volume or wind speed control throughout the cabin through simple operation without disassembling the air duct structure components, or the cabin An object of the present invention is to provide an air diffuser capable of realizing a difference in air flow rate or wind speed at a specific place within.

The air diffuser according to the present invention for solving the above problems, the heating and cooling air flowing from the perforation hole formed in the side panel of the first duct on both sides of the first duct for supplying the heating and cooling air of the railway car air conditioner in the longitudinal direction of the cabin An air diffuser provided in a second duct provided to supply the air downward toward a cabin, the bottom panel of the second duct constituting the through-hole in the central portion along the longitudinal direction and in the longitudinal direction on both sides of the through hole A diffuser panel in which a plurality of blowing holes are formed; A vertical displacement adjusting unit mounted to the through hole to be rotatable on the cabin side; A flow of cooling and heating air mounted around the vertical displacement adjusting part and vertically displaced in the second duct according to a rotation operation of the vertical displacement adjusting part to flow into the second duct from the first duct and discharged through the blowing hole; Controlling a deflector; It is characterized by including.

Air Duct Structure, Air Diffuser, Diffuser Panel, Vertical Displacement Control Part, Deflector

Description

Air diffuser {AIR DIFFUSER}

According to the present invention, a second installation is provided to supply air-conditioning air flowing from a perforation hole formed in a side panel of the first duct to both sides of the first duct for supplying air-conditioning air of a railroad car air conditioner in the longitudinal direction of the cabin. The present invention relates to an air diffuser provided in a duct, and in particular, to control the flow of cooling and heating air flowing into the second duct from the first duct and discharged through the blow hole of the second duct without separating the air duct structure. It relates to an air diffuser that can.

5 is a cross-sectional view seen in the longitudinal direction of the air duct assembly 1000 for heating and cooling of a railway vehicle. As shown in FIG. 5, the air duct assembly 1000 includes a first duct 1001 installed along a longitudinal direction of a railroad car to supply air-conditioning air of an air conditioner in the longitudinal direction of the railroad car, and the first duct. It consists of the 2nd ducts 1003 and 1004 provided in the both side parts of 1001.

Air-conditioning air inside the first duct 1001 is supplied to the second ducts 1003 and 1004 through perforation holes (not shown) provided in the side panels 1001a and 1001b of the first duct 1001 (air). Flows W1 and W2).

Cooling and heating air supplied to the second duct (1003, 1004) is supplied to the guest room through the ventilation holes installed in the bottom panel (1003a, 1004a) of the second duct (1003, 1004). Air-conditioning air supplied to the guest room is guided in the room width direction by air guides 1005 and 1006 mounted on the bottom surfaces of the floor panels 1003a and 1004a (air flows W3, W4, W5 and W6).

Since the first duct 1001 is generally installed in a structure extending in the longitudinal direction of the cabin, the pressure inside the first duct 1001 is applied to the entire longitudinal direction for uniform distribution of heating and cooling air throughout the cabin. It is very important to keep it uniform throughout. This means that when the pressure inside the first duct 1001 is not kept constant throughout its longitudinal direction, the distribution of cooling and heating air blown to the cabin cannot be maintained uniformly, which may cause inconvenience to passengers in the cabin. Because there is.

As a way to overcome this problem, the guide panel 1002 is installed inside the first duct to decrease the flow cross-sectional area of the cooling and heating air as the distance from the air conditioner.

On the other hand, in the state where the air duct assembly 1000 is attached to the roof 3000 of the railroad car using the fixing member 2000, it may be necessary to control the air flow rate or the wind speed of the heating and cooling air at any point in the cabin. .

For example, there is a case in which the air volume or wind speed control over the entire cabin is not precisely controlled by the guide panel 1002 alone, or there is a case where a difference in the air volume is implemented at a specific location of the cabin (for example, near the door). Areas affected are higher in air conditioning and airflow than other locations, so passengers who board these locations will not feel uncomfortable).

In this case, in the conventional railroad car, the bottom panels 1003a and 1004a of the second ducts 1003 and 1004 or the cabin ceiling panels 1001c are separated, and then formed in the side panels 1001a and 1001b of the first duct. Airflow or wind speed control is performed by adjusting the opening / closing degree of the perforation hole that generates the air flows W1 and W2.

This operation is cumbersome to perform the disassembly work of the components of the air duct structure 1000, and, in addition, the mounting stability of the components of the air duct structure 1000 may be degraded during repeated disassembly and assembly. Accordingly, it is desired to implement uniform air volume or wind speed control throughout the cabin, or to vary the air volume or wind speed at a specific place in the cabin through simple operation without removing the components of the air duct structure 1000.

Accordingly, the present invention has been made to solve the above-mentioned problems of the prior art, the object of the present invention is to control the uniform air volume or wind speed throughout the cabin through a simple operation without disassembling the air duct structure components, or in the cabin It is to provide an air diffuser that can realize a difference in the air flow rate or wind speed in a specific place.

In order to achieve the above object, the air diffuser according to the present invention, air-conditioning is introduced from the perforated hole formed in the side panel of the first duct on both sides of the first duct for supplying the heating and cooling air of the railroad car air conditioner in the longitudinal direction of the cabin An air diffuser provided in a second duct provided to supply air downward toward a cabin. The air diffuser includes a bottom panel of the second duct, and a through hole is formed at a central portion thereof along a longitudinal direction thereof, and a longitudinal direction is formed at both sides of the through hole. A diffuser panel in which a plurality of blowing holes are formed; A vertical displacement adjusting unit mounted to the through hole to be rotatable on the cabin side; A flow of cooling and heating air mounted around the vertical displacement adjusting part and vertically displaced in the second duct according to a rotation operation of the vertical displacement adjusting part to flow into the second duct from the first duct and discharged through the blowing hole; It characterized in that it comprises a; deflector to control.

The vertical displacement adjusting part has a stem formed with an operation head at one end thereof and inserted into the through hole and threaded at the other end thereof, a pop nut having an inner circumferential surface screwed to the stem and an outer circumferential surface mounted on the deflector; And a retention spring inserted around the stem and supported at both ends by the pop nut and the diffuser panel. The lower surface of the stem may form a hole of a straight, cross or polygon for inserting a tool for rotating the stem.

Since the pop nut and the stem are screwed together, and a retention spring is disposed between the pop nut and the diffuser panel, the deflector can be vertically displaced by rotating the stem.

The other end of the stem may be coupled with a nut for setting the maximum displacement height of the deflector. The nut may consist of a nylock nut having an anti-loosening function to prevent the fastening with the stem from loosening.

In addition, the air diffuser according to the present invention further includes an air guide mounted on the bottom surface of the diffuser panel along the longitudinal direction, and guides the heating and cooling air discharged from the blowing hole in the room width direction, wherein the air guide has a stem It characterized in that the opening is formed so that it can be rotated from the cabin side.

According to the air diffuser of the present invention, it is possible to control the uniform air flow rate or wind speed throughout the cabin through simple operation without disassembling the air duct structure components, and to realize the difference in the air flow rate or wind speed at a specific place in the cabin. It works.

The singular forms used to describe the embodiments of the present invention are intended to include the plural forms as well, unless the phrases clearly indicate the opposite. And “comprises” means specific features, regions, integers, steps, actions, elements and / or components, and the presence or addition of other specific features, regions, integers, steps, actions, elements, components and / or groups. It is not excluded.

Hereinafter, an air diffuser according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited to the following embodiments. Therefore, it will be apparent to those skilled in the art that the present invention may be variously modified without departing from the technical spirit of the present invention.

1 is a cross-sectional view taken in the longitudinal direction of an air duct structure for a railway vehicle according to an embodiment of the present invention, Figure 2 is a partially enlarged view of the "A" portion of Figure 1, Figure 3 is an embodiment of the present invention 4 is a perspective view of the air diffuser according to an embodiment of the present invention.

1 to 4, according to one embodiment of the present invention, the railway vehicle air duct structure (1) and the first duct 100 for supplying the heating and cooling air of the railway car air conditioner in the longitudinal direction of the cabin, Cooling and heating air (air flows W1 and W2) flowing from the perforation holes (not shown) formed in the side panels 102 and 102 of the first duct 100 to both sides of the first duct 100 toward the cabin. And a second duct 200 installed to supply downward.

The guide panel 103 is installed inside the first duct 100 to reduce the cross-sectional area of the air-conditioning air as it moves away from the air conditioner. The guide panel 103 acts to uniform the pressure distribution therein along the longitudinal direction of the first duct 100.

An air diffuser 300 for uniformly supplying cooling and heating air (air flows W1 and W2) supplied from the first duct 100 to the second duct 200 in the room width direction as the air flows W3 to W6. ) Is installed.

The air diffuser 300 constitutes a bottom panel of the second duct 200, and a through hole 311 is formed at a central portion thereof in a longitudinal direction thereof, and a plurality of through holes 311 are formed along both sides of the through hole 311. Of the diffuser panel 310 in which the blower hole 312 is formed, the vertical displacement adjusting unit 330 mounted in the through hole 311 so as to be rotatable from the cabin side, and the vertical displacement adjusting unit 330. It is mounted on the circumference, and vertically displaced in the second duct 200 in accordance with the rotation operation of the vertical displacement control unit 330, flows into the second duct 200 from the first duct 100 and the air blowing It includes a large deflector 350 for controlling the flow of the heating and cooling air discharged through the hole 312.

The diffuser panel 310 may include a flat portion 310a in which the through hole 311 and the blower hole 312 are formed, inclined portions 310b and 310c inclined downward from the flat portion 310a, and Coupling portions 310d and 310e that are continuously formed on the inclined portions 310b and 310c and are coupled to the side panel 201 of the second duct 200 and the side panel 101 of the first duct 100, respectively. It consists of an extruded plate made of).

Insulation and sound insulation 313 is disposed on the upper surface of the diffuser panel 310.

An air guide 370 is mounted on the bottom of the diffuser panel 310 along its length direction.

The air guide 370 guides the cooling / heating air discharged from the blower hole 312 in the room width direction, and the stem 340 can be rotated at a position corresponding to the through hole 311, but the head 341 ) Is formed with an upper first opening 371 having a size that cannot pass through, and a lower second opening 372 having a size that allows the head 341 to pass through.

The vertical displacement adjusting part 330 has a stem 340 formed with an operation head 341 at one end thereof, the other end inserted into the through hole 311, and a thread 342 formed at a circumference thereof, and an inner circumferential surface of the stem 341. A pop nut 352, which is screwed to the outer circumferential surface of the deflector 350, and is fitted around the stem 340 so that both ends 344b and 344a are fitted to the pop nut 352. And a retention spring 344 supported by the diffuser panel 310. A washer 344c may be disposed between one end 344b of the retention spring 344 and the diffuser panel 310. A hexagonal groove is formed in the lower portion of the head 341 so that the head 341 can be rotated by using a hexagon wrench.

Alternatively, by forming a straight or cross-shaped groove in the lower portion 343 of the head 341, it is possible to rotate the head 341 using a flat or Phillips screwdriver.

The deflector 350 assembly in which the stem 340 and the pop nut 352 screwed around the stem 340 is mounted is inside the second duct 200 by the retention spring 344. Is always elastically supported upwards.

The deflector 350 may be formed of a plate member including a flat part 353 having an opening 351 formed at the center thereof, and inclined parts 354 and 355 that are inclined obliquely from the flat part 353. The deflector 350 is disposed along its longitudinal direction in the second duct 200 as shown in FIG. 3.

The pop nut 352 is attached to the opening 351 formed in the width direction center of the deflector 350.

The pop nut 352 and the stem 340 are screwed together, and the stem 340 and the deflector 350 assembly are supported by the head 341 of the stem 340 on the diffuser panel 310 side. Since it is elastically supported upward in the second duct 200, as the stem 340 is rotated in place, the deflector 350 can be vertically displaced by a distance L.

The other end side of the stem 340 is screwed nut 345 for setting the maximum displacement height of the deflector (350).

The nut 345 may be configured as an anti-loosening nut, for example, a nyrock nut, on which an inner material such as nylon is formed.

Hereinafter, the operation of the air diffuser 300 according to the present invention having the configuration described above.

In a state where the air duct structure 1 is mounted on a railroad car, there is a case where a fine control of the air flow rate or wind speed over the width direction of the cabin, or a difference in the air flow rate or the wind speed at a specific place in the cabin is desired.

In this case, as shown in FIG. 4, the hexagonal wrench is inserted into the hexagonal hole formed in the lower portion 343 of the head 341 to rotate the stem 340 in place or to the lower portion 343 of the head 341. The stem 340 is pivoted by inserting a screwdriver into the formed slot or cross slot.

As the stem 340 is rotated in place, the deflector 350, on which the pop nut 352 screwed to the stem 340 is mounted, is displaced up and down between the maximum height H2 and the minimum height H1. .

In addition, the maximum height of the deflector 350 may be set by the nut 345 which is treated to prevent loosening.

As described above, the deflector 350 is vertically displaced so that the flow of the heating and cooling air (W3 to W6) flowing from the first duct 100 to the second duct 200 and discharged in the room width direction through the blowing hole 312. ) Can be controlled. Therefore, it becomes possible to implement fine control of the air volume or the wind speed over the width direction of the cabin, or the difference of the air volume or the wind speed at a specific place in the cabin.

In addition, since the head 341 of the stem 340 can be operated by a wrench or a driver in the cabin side without disassembling the components of the air duct structure 1, the flow of cooling and heating air (W3, W4) Control can be performed quickly and easily. In addition, it is possible to prevent a decrease in the mounting stability of the components of the air duct structure (1) that may occur in the repetitive disassembly and assembly process as in the prior art.

1 is a cross-sectional view taken in the longitudinal direction of the air duct structure for a railway vehicle according to an embodiment of the present invention.

FIG. 2 is a partial enlarged view of portion “A” of FIG. 1. FIG.

3 is a perspective view of an air diffuser according to an embodiment of the present invention.

4 is a state diagram of the operation of the air diffuser.

5 is a view for explaining the operation of the conventional air diffuser.

[Description of Reference Numerals]

1: air duct assembly 100: first duct

200: second duct 300: air diffuser

310: diffuser panel 311: through hole

312: blowing hole 330: vertical displacement control unit

340 stem 341 head

344: retention spring 350: deflector

352: pop nut 370: air guide

Claims (5)

Second ducts are provided on both sides of the first duct for supplying air-conditioning air of a railroad car air conditioner in the longitudinal direction of the cabin to supply air-conditioning air flowing from the perforation hole formed in the side panel of the first duct downward toward the cabin. As an air diffuser, A diffuser panel constituting a bottom panel of the second duct, the through-holes being formed in a central portion thereof in a longitudinal direction, and a plurality of blower holes being formed in both sides of the through-holes; A vertical displacement adjusting unit mounted to the through hole to be rotatable on the cabin side; Mounted around the vertical displacement control unit, the vertical displacement in the second duct in accordance with the rotation operation of the vertical displacement control unit of the heating and cooling air flowing into the second duct from the first duct and discharged through the blowing hole An air diffuser comprising a deflector for controlling the flow. The stem of claim 1, wherein the vertical displacement adjusting part comprises: a stem having an operation head formed at one end thereof and an other end inserted into the through hole, and a thread formed at a circumference thereof; A pop nut having an inner circumferential surface screwed to the stem and an outer circumferential surface mounted to the deflector, And a retention spring inserted around the stem and supported at both ends by the pop nut and the diffuser panel. 3. The air diffuser of claim 2, wherein a nut for setting a maximum displacement height of the deflector is coupled to the other end of the stem. The air purifier of claim 2, further comprising an air guide mounted on a bottom surface of the diffuser panel along a longitudinal direction to guide cooling and heating air discharged from the blower hole in a room width direction. And the opening is formed in the air guide so that the stem can be rotated from the cabin side. The air diffuser according to claim 2, wherein the bottom surface of the stem is formed with a straight, cross or polygonal hole.

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