KR20170070383A - Pressure Independent Air Flow Control Device - Google Patents

Pressure Independent Air Flow Control Device Download PDF

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Publication number
KR20170070383A
KR20170070383A KR1020150177821A KR20150177821A KR20170070383A KR 20170070383 A KR20170070383 A KR 20170070383A KR 1020150177821 A KR1020150177821 A KR 1020150177821A KR 20150177821 A KR20150177821 A KR 20150177821A KR 20170070383 A KR20170070383 A KR 20170070383A
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KR
South Korea
Prior art keywords
shaft
cone
case
shaped
tubular case
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KR1020150177821A
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Korean (ko)
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KR101804777B1 (en
Inventor
박소영
Original Assignee
티엠씨 주식회사
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Priority to KR1020150177821A priority Critical patent/KR101804777B1/en
Publication of KR20170070383A publication Critical patent/KR20170070383A/en
Application granted granted Critical
Publication of KR101804777B1 publication Critical patent/KR101804777B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/12—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of sliding members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure-independent air volume regulator, and more particularly, to a pressure-independent air volume regulator configured to regulate an amount of air introduced into a room.
The pressure-independent air volume regulator according to the present invention includes a casing unit 100 including a cone-shaped case 100 into which wind flows, and a tubular case 200 through which the wind introduced into the cone-shaped casing 100 is discharged. A reciprocating shaft 300 which is positioned over the cone-shaped case 100 and the tubular case 200 and has a cone-shaped adjuster 400 fixed at its front end and connected to the linker 600 at its rear end; A fixing bracket 500 installed inside the tubular case 200 to fix the reciprocating shaft 300; The other end of the linker 600 is connected to the rotating shaft 710 through the tubular case 200 and is reciprocated by the rotation of the rotating shaft. ; And

Figure P1020150177821

Description

[0001] The present invention relates to a pressure independent air flow control device,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure-independent air volume regulator, and more particularly, to a pressure-independent air volume regulator configured to regulate an amount of air introduced into a room.

Variable air volume controllers are being developed to control the amount of air flowing into the room.

As shown in FIG. 1, a first air inlet 11 ', a first air outlet 12' and a mixed air outlet 13 'are formed in the base 10, and the base 10' Of the damper actuator 20 'mounted on the outer circumferential surface of the operating shaft 22' and the both-side links 23 'attached to the front end of the operating shaft 22' Is connected to each air flow control damper 24 'attached to both ends of the outlet 12' to open and close the initial air outlet 12 ', and the inlet air inlet 30' formed at the lower portion of the gas 10 ' And an air induction pipe 40 'is provided between the first air outlet 12' and the induction air inlet 30 'so as to be connected to the mixed air outlet 13' .

In Korean Patent No. 911156, there are many hinge-linked link structures in the above-mentioned design, and as the durability is deteriorated, the durability of the hinged portion is reduced and the lubrication performance of the hinged portion is lowered. And an improved variable air volume regulator as shown in Figs. 2, 3, and 4 is disclosed.

The pressure-independent air volume controller includes a casing 2 having an inlet formed at a front end thereof, an outlet formed at a rear end thereof, and a venturi portion 20 formed on an inner peripheral surface thereof, as disclosed in the claims. A cylinder cone (4) coupled to a shaft (6) inserted in an inner center of the casing (2) and regulating opening / closing degree of the venturi section (20) while being moved back and forth; And an actuator (7) and a link (74) for adjusting the forward and backward length of the shaft (6), so as to control the amount of air flowing through the inlet, and the cylinder cone (4) A through hole (40) is formed at the center and a space portion is formed in the center. The through hole (40) is coupled to the shaft (6) And a cylinder (5) to be folded.

The cylinder (5) includes a body (52) having front and rear ends opened; A front cap 54 coupled to a front end of the body 52 and the cylinder cone 4 and having a first fitting hole 550 through which the shaft 6 passes; A double spring (3) inserted in the body (52) and configured to have different elastic forces in forward and backward directions; And a rear plunger 56 inserted into a rear end of the body 52 and having a second fitting hole 560. The double spring 3 is a coil spring and the front portion 32 is tightly wound The rear portion 34 is loosely wound so as to have a high elastic modulus and is stretched and contracted by the front portion 32 to a small wind pressure so as to be elastically expanded and contracted by the rear portion 34, A fitting member 55 having the first fitting hole 550 is coupled to the cap 54. The fitting member 55 is made of a conical synthetic resin material.

The conventional pressure independent air volume regulator requires an expensive actuator 7 in which the operating shaft 72 moves forward and backward in order to move the shaft 6 back and forth and also the casing 2 is provided with a shaft An actuator 7 link 74 connected to the actuator 6 is hinged and an actuating hole 22 of a long elongated hole shape is required to be actuated by a seesaw motion in which air sucked through a long slot formed in the casing 2 There is a problem that a deviation occurs in the control flow rate.

In addition, since the conventional pressure-independent air volume regulator has a long venturi portion formed at the front end thereof, there is a problem that the processing is difficult and expensive, and the outlet side is integrally formed with the same shape as the inlet side, There is a problem to be delivered. In order to prevent this, it is necessary to install a soundproofing and heat insulating member L on the whole outside the venturi. However, it is difficult to process the inner surface of the heat insulating member into a venturi form.

In addition, the conventional pressure-independent air volume regulator has a problem in that it is difficult to install in a small space due to its large size due to the venturi portion.

A problem to be solved by the present invention is to provide a new pressure-independent air conditioner which can use a relatively low-cost rotary actuator as compared with a front-back reciprocating actuator.

Another problem to be solved by the present invention is to provide a new pressure independent air volume regulator which can prevent error and loss due to a long hole for seesaw motion.

Another problem to be solved by the present invention is to provide a pressure-independent air volume controller using a new casing which is easier to process than a venturi type casing which is difficult to process.

Another problem to be solved by the present invention is to provide a new pressure independent air volume regulator with reduced noise.

In order to solve the above problems, a pressure-independent air volume controller according to the present invention comprises: a case having a front-end cone-type case having a wide inlet and a narrow outlet, and a rear-end tubular case having a constant diameter; A reciprocating shaft to which the cone type adjuster is attached at the front end and which moves back and forth along the central axis; One side of which is connected to a rotation shaft of a motor that is inserted through the case and the other side of which is connected to a shaft to convert the rotation of the motor into forward and backward movement of the shaft; A motor provided outside the casing; And a bracket installed inside the tubular case and supporting a shaft and a rotation axis of the motor.

In the present invention, the cone-shaped case may have a shape of a front end having a large diameter, a conversion part having a sharp diameter decreasing, and a rear end having a reduced diameter.

In the present invention, the tubular case may have various shapes, and preferably has a rectangular cross-section so as to easily connect with exhaust pipes of a rectangular cross section. In the embodiment of the invention, the tubular case has a cylindrical opening formed at one end thereof in contact with the cone-shaped case, and the other end thereof in contact with the exhaust pipe is opened.

In the present invention, the cone-shaped adjuster includes a cone-shaped body protruding forwardly in the form of a convex mirror and having a cylindrical through-hole at the center thereof; A tubular body inserted into the cylindrical hole, a cap cover covering an upper end of the pipe body, a coil spring embedded in the tubular body and coupled to the cap cover, a coil spring coupled to a lower end of the coil spring, And a cylindrical adjuster made of a spring bearing having a diameter smaller than the diameter, the shaft penetrating along the central axis, and the spring bearing is fixed to the shaft. In the practice of the present invention, the cone type regulator is shown in detail in the form of Korean Patent 911156, and it is also possible to purchase the cone type regulator commercially.

In the present invention, the cone type regulator moves to the connecting portion between the cone-shaped case and the tubular case by the backward movement of the shaft and primarily controls the incoming air amount. The cone type regulator causes the cone- A part of which is introduced into the tubular case to adjust the air volume to the second degree. In addition, the cone type air conditioner advances to the inlet of the cone type case by advancing the shaft to maximize the incoming air amount. By increasing the air amount, the spring is compressed and the cone type body is further backwardly regulated .

In the present invention, the front end of the reciprocating shaft is located in the cone-shaped case, and the cone-shaped adjuster is attached, and the rear end is extended in the tubular case and is coupled to the linker for reciprocating the reciprocating shaft forward and backward.

In the present invention, a bracket for supporting the shaft of the reciprocating shaft and the motor is provided in the tubular case. The bracket is installed at a predetermined distance from one side of the tubular case so that the rear end of the cone type adjuster can be drawn into the tubular case. The bracket is provided with a shaft guide for movably supporting a shaft at the center of the tubular case, and a rotation axis guide is formed at a peripheral portion of the tubular case to support the rotation shaft of the motor that is inserted into the tubular case.

In the present invention, the linker is fixed to a rotary shaft on one side and reciprocates in a pendulum shape or a watch shape by bi-directional rotation of the motor shaft, and a shaft is connected to the other end to reciprocate.

In the present invention, the motor is installed outside the tubular case, and the rotation axis of the motor extends to penetrate through the tubular case, and is fixed to the rotation shaft guide of the bracket and rotated. The diameter of the through-hole formed in the tubular case and the diameter of the motor rotation shaft are substantially equal to each other, thereby preventing the inflow of air.

In the present invention, the tubular case may be provided with a silencer on its outer surface or inner surface to reduce noise caused by the inflow of air, and it is possible to nap the temperature change due to the inflow of outside air by adhering the heat insulating material.

In order to reciprocate the shaft, the pressure independent air volume regulator according to the present invention includes a case in which a long hole is formed in the case to connect the motor shaft reciprocating forward and backward to perform a seesaw motion, By using the shaft to reciprocate, the price is low, and the inflow of air by the slot can be blocked.

The pressure-independent air volume regulator according to the present invention reduces the noise due to a sudden increase in the duct length in the process of introducing the tubular case into the cone-type case. The pressure-independent air volume regulator has a noise- Can be installed.

In addition, the pressure-independent air volume controller according to the present invention uses only a portion of the venturi pipe that is reduced in the venturi pipe instead of the conventional venturi-type inlet unit, thereby miniaturizing the size of the device, so that it can be easily installed in a narrow space such as a ceiling.

1 is a pressure-independent air volume regulator according to one embodiment of the present invention.
2 is a pressure-independent air volume controller according to another embodiment of the present invention.
3 is an exploded perspective view of a cone type regulator used in a pressure independent air volume regulator.
4 is a side cross-sectional view of a cone-shaped regulator used in a pressure-independent air volume regulator.
5 is a cross-sectional view of a pressure-independent air volume controller according to the present invention.
6 is a side view of a pressure-independent air volume controller according to the present invention as viewed from the rear end.
7 is a cross-sectional view illustrating a state in which the pressure-independent air volume controller according to the present invention operates in a fully opened state.
8 is a cross-sectional view showing a state in which the pressure-independent air volume controller according to the present invention operates in a fully closed state.
9 is an explanatory view showing a method of converting the rotation of the motor shaft into the reciprocating motion of the shaft according to the pressure independent air volume regulator according to the present invention.

Hereinafter, the present invention will be described in detail with reference to examples. BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, in which: FIG. You can do it. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprising" or "having ", and the like, are intended to specify the presence of stated features, integers, steps, operations, elements, parts, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, or combinations thereof. The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

Example

5 and 6, the case 10 of the pressure-independent air volume controller according to the present invention includes a cone-shaped case 100 into which wind is introduced, and a wind- And a tubular case 200 to be discharged.

The cone-shaped case 100 includes a front end 110 having a large diameter and gradually decreasing in diameter along a direction in which the wind moves, a conversion unit 120 having a diameter drastically reduced, a rear end 130 ). At the end of the rear end 130, a circular flange 131 is formed along the periphery so as to engage with the tubular case 200.

The tubular case 200 is a tubular case having a square cross section. The joint surface 210 in contact with the cone-shaped case 100 is closed at its periphery, and at its center is formed a circular shape having a diameter corresponding to the rear end 130 of the cone- An opening 211 is formed so as to communicate with the cone-shaped case to introduce the wind, and the discharge surface 220 is completely opened and the inflow wind is discharged.

The reciprocating shaft 300 is positioned over the conical type casing 100 and the tubular case 200 and is fixed by a fixing bracket 500 installed inside the tubular case 200. A cone type adjuster 400 is fixed to the front end of the reciprocating shaft 300 and the other end of the reciprocating shaft 300 is fixed to the linker 600.

The cone-shaped adjuster 400 includes a convex mirror part 410 protruding forward in the form of a convex mirror, a cone-shaped body 420 having a cylindrical hole at its center, A cap cover 440 covering the upper end of the pipe body, a coil spring 450 embedded in the pipe body and coupled to the cap cover, And a cylindrical adjuster coupled to the lower end of the spring and having a diameter smaller than the diameter of the pipe, the shaft being pierced along the central axis, and the spring bearing being fixed to the shaft.

The fixing bracket 500 includes a bar-shaped supporter 500 that extends across the center of the tubular case 200 and supports the bar-shaped supporter 510 at both ends of the bar- A shaft fixing piece 530 protruding along the reciprocating shaft 300 at the center of the fixing piece 520 and the bar size supporting portion 510 and the barrel supporting piece 510 are disposed in the direction of the discharge surface 220 And a motor shaft support piece 540 to which the motor shaft 710 is fixed.

The fixing bracket 500 is configured such that the rod-shaped support piece 510 is inserted into the cone-shaped case 400 so that the rear end of the cone-shaped adjuster 400, which is positioned at the tip of the reciprocating shaft at the maximum retraction of the reciprocating shaft 300, 100 (the length of the supporting part fixing piece 520).

Two fixing pawls 550 are provided at the center of the shaft fixing member 530 and at the center of the rod supporting piece 510 in order to fix the reciprocating shaft 300 in a row at the center of the fixing bracket 500 .

The supporting portion fixing piece 520 of the fixing bracket 500 is screwed together with the circular flange 131 of the cone-shaped case in a state where the end portion is in contact with the inside of the joint surface 210.

One end of the linker 600 is fixed to the motor shaft 710 and is reciprocated in a track locus by bi-directional rotation of the motor shaft. The other end of the linker 600 is connected to the distal end of the reciprocating shaft 300, Return.

The linker 600 includes a pivot rod 610 whose upper end is fixed to the motor shaft and moves in a clockwise direction and a sub rod 610 having the same length as the pivot rod and rotatably fixed to the upper end of the motor shaft fixing piece 540, A U-shaped connecting piece 630 rotatably connected to the lower ends of the pivot rod 610 and the auxiliary rod 620 and a U-shaped connecting piece 630 fixed to a distal end of the reciprocating shaft 630, And a connecting member 640 that reciprocates vertically. The connecting member 640 may be a protruding member vertically protruding from the end of the reciprocating shaft and passing between the U-shaped connecting pieces 630, passing through the end of the reciprocating shaft and passing between the U-shaped connecting pieces 630 May be a penetrating member.

The motor 700 is installed on the outer surface of the tubular case 200 and rotatably fixed to the stationary bracket 400 through a through hole formed in the tubular case 200, And rotates the linker 500 fixed to the distal end in a clockwise direction by rotating it in a predetermined angle in both directions.

The pressure independent air volume controller according to the present invention operates as follows. 7A is a state in which there is no wind pressure in a state in which the pressure-independent air volume regulator is maximally open, and FIG. 7B is a state in which wind pressure is applied in a state in which the pressure-

7, in order to increase the inflow amount of air, the reciprocating shaft 300 is advanced forward to the maximum. 7A, when the spring bearing 460 is fixed to the reciprocating shaft 300, the coil spring 450 is in a non-compressed state, It becomes a war. The coil spring 450 is pressed by the wind pressure in a state where the spring bearing 460 is fixed to the reciprocating shaft 300 and the rear end of the coil spring 450 is pressed by the wind pressure, So that the amount of air inflow can be controlled.

As shown in FIG. 8, the reciprocating shaft 300 is moved backward to reduce the inflow amount of air. 8A, when the spring bearing 460 is fixed to the reciprocating shaft 300, the coil spring 450 is in an uncompressed state in a state where the spring bearing 460 is fixed to the reciprocating shaft 300 . 8B, when the spring bearing 460 is fixed to the reciprocating shaft 300, the coil spring 450 is squeezed by the wind pressure, The body of the type regulator is retracted to the inside of the tubular case 200 to be maximally closed, and the shaft fixing member 530 enters the inside of the cone type regulator 400.

The advancement of the shaft by rotation to the motor operates as shown in Fig. In Fig. 9A, the reciprocating shaft 300 shows a backward state, Fig. 9B shows an intermediate state, and Fig. 9C shows an advanced state.

As shown in Fig. 9A, the motor shaft 710 rotates in the clockwise direction by the rotation of the motor when the reciprocating shaft 300 is in its maximum reverse state. Accordingly, the pivot rod 610 whose upper end is fixed to the end of the motor shaft 710 rotates, and the auxiliary rod 620 connected to the U-shaped connecting piece 630 also rotates. The U-shaped connecting piece 630 rotatably connected to the pivot rod 610 and the auxiliary rod 620 by a rivet moves in a clockwise state with a vertical state regardless of its position. The protruding member 640 disposed between the U-shaped connecting pieces 630 is positioned upward between the U-shaped connecting pieces 640 when the U-shaped connecting piece descends while advancing, . In the case of backward movement, the movement is reversed. This method enables smooth reciprocating motion of the shaft without being interrupted by the rotation of the motor in the course of the reciprocation of the shaft.

100: Cone type case
200: tubular case
300: reciprocating shaft
400: cone type regulator
500: Fixed bracket
600: Linker
700: motor

Claims (5)

A case part 100 comprising a cone-shaped case 100 through which wind flows, and a tubular case 200 through which the wind introduced into the cone-shaped case 100 is discharged;
A reciprocating shaft 300 which is positioned over the cone-shaped case 100 and the tubular case 200 and has a cone-shaped adjuster 400 fixed at its front end and connected to the linker 600 at its rear end;
A fixing bracket 500 installed inside the tubular case 200 to fix the reciprocating shaft 300;
The other end of the linker 600 is connected to the rotating shaft 710 through the tubular case 200 and is reciprocated by the rotation of the rotating shaft. ;
Pressure independent air volume regulator. The fixing bracket 500 according to claim 1, wherein the fixing bracket 500 is spaced apart from the joining surface 210 of the cone-shaped case 100 by a predetermined distance so that the rear end of the cone type adjuster 400 can be inserted into the inside of the tubular case 200 Pressure air-conditioner. The fixing bracket (500) according to claim 2, wherein the fixing bracket (500) comprises a rod supporting part (500) crossing the center part of the tubular case (200) A shaft fixing member 530 protruding along the reciprocating shaft 300 at a central portion of the rod supporting member 510 and a shaft fixing member 530 protruding from the rod supporting member 510 between the center and both ends And a motor shaft support piece (540) protruding in the direction of the discharge surface (220) and to which the motor shaft (710) is fixed. The linker (600) according to claim 1, wherein the linker (600) comprises a pivot rod (610) having an upper end fixed to the motor shaft and moving in a clockwise direction, A U-shaped connecting piece 630 rotatably connected to the lower ends of the pivot rod 610 and the auxiliary rod 620 and a U-shaped connecting piece 630 fixed to the distal end of the reciprocating shaft, And a connecting member (640) that reciprocates vertically between the connecting pieces (630). The pressure-independent air volume regulator of claim 1, wherein a silencer is installed inside and / or outside the tubular case (200).

KR1020150177821A 2015-12-14 2015-12-14 Pressure Independent Air Flow Control Device KR101804777B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102150604B1 (en) * 2019-03-12 2020-09-01 박소영 Venturi type variable air volume control device and air volume control method using the same
KR102150618B1 (en) * 2019-06-17 2020-09-01 박소영 Energy-variable air volume unit and central air-conditioning system for controlling of air volume and measuring of energy used in each room

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100911156B1 (en) * 2009-02-24 2009-08-06 서진공조 주식회사 Variable air volume regulation valve

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