KR20190050447A - Electric damper with mechanical micro air volume control function - Google Patents

Abstract

The present invention relates to an electric damper having a mechanical fine air volume control function. A driving shaft horizontally installed on a shielding plate installed on the inner side of a main body is withdrawn to the outside of the main body and is controlled to rotate at multiple stages by a rotation control unit installed in the outside of the main body. The shielding plate comprises an auxiliary shielding plate mechanically operated on one side or both sides to have an air inflow space between with the shielding plate. So, a lower end of the shielding plate is axially connected to a fixing pin installed on the shielding plate, and the auxiliary shielding plate is pressed toward the shielding plate by an elastic force of a torsion spring in which both ends are supported on the shielding plate and the auxiliary shielding plate. The air inflow space faces an inlet when the shielding plate is partially opened. A cover plate fixed to the shielding plate is installed on both sides of the auxiliary shielding plate on the one side or the both sides, and, therefore, the air flowing into the air inflow space formed between the shielding plate and the auxiliary shielding plate is prevented from being discharged to the outside so that the auxiliary shielding plate sensitively operates. So, the electric damper can reduce noise of a following wind and can provide functionality capable of improving cooling and heating efficiency by improving distribution of proper air volume. Also, the electric damper simplifies composition thereof. So, the electric damper can improve manufacturing performance and can reduce manufacturing costs.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an electric damper having a mechanical micro-

The present invention relates to an electric damper for controlling the amount of air flow inside a duct by further comprising an auxiliary blocking plate mechanically operated on a blocking plate in a multi-stage electric damper, more specifically, an air damper And auxiliary blocking is added to the blocking plate so as to reduce the noise of the ventilation noise and improve the distribution of the air volume appropriately. Thus, the efficiency of the ventilation can be improved as well as the efficiency of the air conditioning can be improved. So that the manufacturing cost can be reduced and the manufacturing cost can be improved.

Generally, an electric damper is a component installed on a duct of an air system to control the amount of air flow.

The electric damper has various configurations. As a representative example, a " electric damper having an air volume control function " of Korean Registered Patent Application No. B1-1505642 (Feb. 25, 2015) filed by the present inventor has been proposed The air conditioner according to the present invention is characterized in that an air blower is installed at the upper end of a flue connected to a hood of a multi-unit house, and the open angle between the flue and the hood is controlled to be multi- Is controlled by a control unit electrically connected to a circuit board by a first switch assembly operation, the electric damper comprising: The control unit is further provided with a wind speed sensor installed inside the discharge end of the electric damper to sense the discharge wind pressure and notify the sensed value to the microcomputer of the control unit. The amount of discharge can be reduced by opening the blocking plate to a large extent or by opening the blocking plate to a small size to reduce the amount of discharge, or the microcomputer provided on the circuit board of the control unit is provided with an operation signal of the electric damper So that the fan control means is electrically connected to the fan so that the fan operates simultaneously when the electric damper is operated. And when the signal of the first switch assembly is present, the microcomputer drives the electric damper several seconds after the fan is driven.

Another example is an "electric damper" of the Korean Utility Model Registration Utility (Y1) 20-0477580 (Jul. 2015.06.06), which is configured to open and close an exhaust duct for taking out the inside air connected to the ventilator to the outside The electric damper according to claim 1, further comprising a tubular body connected to the exhaust duct, the tubular body being formed by connecting an intake surface formed on a blowing surface of the blower by the blower and a blower surface blowing the blower A body portion having an inclined surface which is inclined from an upper portion to a lower portion at a position spaced apart from the intake surface by a predetermined distance in the direction of the outflow surface and is formed so as to protrude from the inner circumferential surface to the central portion; A damper lid installed in a hinge-coupled manner, and a damper cover provided between the inclined surface and the intake surface to penetrate the body portion A motor having a motor rotation shaft installed on the outside of the body portion and a hinge bar which is coupled to the motor rotation shaft and rotates while passing through the through hole and has a hinge bar for applying a force to the damper lid, And that the inclined surface and the damper lid are coupled with a magnetic force in a state in which the ventilator is not operated.

In the conventional electric damper, when the damper lid is operated, the actuating force of the damper lid is rotated by the driving force of the motor at a predetermined angle. However, in such a case, there is a problem in that the circuit configuration for controlling the amount of emission when the excessive suction force is generated at the discharge side is complicated, it is difficult to expect sensitive operation, and exhaust noise is generated at the time of discharge, There is a demand for an electric damper of a new construction capable of solving the same problem.

Therefore, the inventor of the present invention has solved the problem that the conventional electric dampers have a configuration in which the air flow rate is controlled by rotating the blocking plate only in multi-stages, so that the air flow rate changes according to the suction force on the discharge side in a state in which the blocking plate is rotated (B1) 10-1702268 (Feb. 27, 2017), which is incorporated herein by reference in its entirety, discloses an electric damper having a mechanical airflow control function.

In the above-described prior art, a shutoff plate is installed inside the main body so as to control the flow of air, and a drive shaft horizontally disposed on the shutoff plate is drawn out to the outside of the main body. The control damper is configured to rotate the shut-off plate by engaging a drive motor rotating in the forward and reverse directions controlled by the multi-stage rotation by the means. The auxiliary blocking plate is structured such that an air inflow space is formed between the blocking plate and the lower blocking plate is axially coupled to the fixing pin provided on the blocking plate, And the auxiliary blocking plate is urged toward the blocking plate by the elastic force of the torsion spring having both ends thereof supported by the blocking plate and the auxiliary blocking plate. The air inlet space is configured to face the suction port when the blocking plate is partially open, The auxiliary blocking plate is configured such that rotation of the auxiliary blocking plate is restricted by a stopper provided on the blocking plate.

However, in the case of the above-described auxiliary blocking plate, there is a problem that the blocking plate is not operated smoothly in a state where the blocking plate is slightly opened at the first stage, and a technique for operating it sensitively to the air flow has been demanded.

KR 101505642 B1 2015.03.25. KR 200477580 Y1 2015.07.06. KR 101702268 B1 2017.02.02.

However, the electric damper having the mechanical airflow control function of the Korean Registered Patent Application No. B1-11022268 (Feb. 07, 2017) registered by the inventors of the present invention has a complicated structure and a gap is formed on the right and left sides of the auxiliary blocking plate, The present invention has been made to solve the above-mentioned problems.

That is, in the present invention, an auxiliary shielding plate, which is mechanically operated on one side or both sides of the shielding plate which is electrically opened and closed, is further provided, and the side surface of the auxiliary shielding plate is provided with a shielding plate And an elastic means is provided between the upper end of the auxiliary blocking plate and the cover plate so that an elastic force acts when the auxiliary blocking plate stands up to control the operation of the auxiliary blocking plate according to the strength of the air flow. The present invention also provides an electric damper having a mechanical airflow control function capable of improving the efficiency due to ventilation as well as improving the cooling and heating efficiency by reducing the noise of the ventilation noise and improving the distribution of the airflow rate appropriately. Thereby completing the present invention.

In order to solve the above problem, according to the present invention, a driving shaft, which is formed on a shield plate provided on the inside of a main body having a first suction port and a discharge port on both sides thereof, is drawn out to the outside of the main body so as to be rotatably controlled in multiple stages by a rotation control means provided outside the main body An electric damper comprising: The air outlet is provided with an air setting means; The air setting means includes a blocking plate formed integrally or detachably with the main body and having a discharge hole formed thereon, and a setting plate slidably coupled to the guide rail formed with the blocking plate to adjust the size of the discharge hole formed in the blocking plate Wherein the adjusting plate is formed in a long length upwards and downwards and is fixed in a height adjusting hole formed in the blocking plate so as to be positioned in the discharging hole so that the size of the discharging hole can be adjusted.

Secondly, the adjusting plate is formed with a length adjusting hole upward and downward, and is fixed to a height adjusting member formed on a blocking plate so as to be positioned in the discharging hole, so that the size of the discharging hole can be adjusted.

Third, a height adjusting member is formed in a protruding shape at the lower end of the blocking plate, and an adjusting member for covering a height adjusting member is formed on the lower side of the setting plate. An adjusting hole is formed in the adjusting member, do.

Fourth, a variable protrusion is formed on the setting plate and a screw hole is formed therein; A fixing protrusion positioned coaxially with the screw hole is formed at an upper end of the blocking plate, and a lift hole is formed in the fixing protrusion; And the lower end of the lifting bolt inserted through the lifting hole is screwed into the screw hole so that the setting plate can be lifted and lowered.

Fifth, an auxiliary blocking plate mechanically acting on one side surface or both side surfaces of the blocking plate is formed so as to form an air inflow space between the blocking plate and a lower end thereof is axially coupled to a fixing pin provided on the blocking plate, The auxiliary blocking plate is urged toward the blocking plate by the elastic force of the first torsion spring having both ends supported on the blocking plate, and the air inlet space faces the suction port when the blocking plate is partially open.

Sixth, the auxiliary blocking plate allows the pressing force to be externally controlled by the external adjusting means; Wherein the external adjusting means is constituted such that the stopper projection is traversed over the upper end of the auxiliary blocking plate and the external adjusting screw is tightened by forming a screw hole in the stopper projection; The main body constituting the electric damper forms an external control hole in which the external adjusting screw is exposed in a state in which the blocking plate is completely opened; The outer adjusting hole is provided with a stopper for sealing the outer adjusting hole so that the outer adjusting hole can be hermetically sealed with a cap.

Seventh, on both sides of the one or both side auxiliary blocking plates, there is provided a blocking plate fixed to the blocking plate to block the air introduced into the air inflow space formed between the blocking plate and the auxiliary blocking plate from being discharged to the outside, So that it can be operated.

Eighth, the auxiliary blocking plate includes a lower member coupled to the blocking plate with a fixing pin; A lower member coupled to the lower member by a pivot pin; And a rotation protrusion protruding toward the blocking plate is formed on both sides of the upper member and a rotation angle regulating piece formed on the lower side of the upper member to cover the outer side of the lower member.

Ninth A stopper protrusion bent to the side of the auxiliary blocking plate is formed at the upper end of the covering plate to limit the standing angle of the auxiliary blocking plate.

And the tenth auxiliary blocking plate is configured such that the rising force is controlled by the elastic force of the elastic means when standing up.

Eleventh, the elastic means is a tension spring having both ends fixed to the blocking plate and the auxiliary blocking plate.

And the twelfth elastic means is a compression spring located between the auxiliary blocking plate and the stopper projection.

And thirdly, a guide pin is formed on both sides of the leading end of the auxiliary blocking plate, and the guide pin is guided by being inserted into an arc-shaped guide hole formed in the cover plate.

In the case of using the electric damper having the mechanical micro air volume control function provided in the present invention, when the suction force from the discharge port side is strengthened in a state that the blocking plate is partially opened, the auxiliary blocking plate rotates to reduce the discharge space between the main body and the blocking plate, The air inflow space formed between the shielding plate and the auxiliary shielding plate is directed toward the discharge port so that the airflow is not disturbed.

In particular, since the air setting means is provided on the discharge port side of the present invention, the air setting means is adjusted in the installation step so that the optimal air discharge can be smoothly performed. In addition, a shielding plate is provided on both sides of the auxiliary blocking plate, It is possible to more reliably assure the operation of the auxiliary blocking plate and to prevent excessive opening and closing by the elastic means when the auxiliary blocking plate is rotated, It can be controlled.

The present invention can simplify the construction by adding the auxiliary blocking plate, the closure plate and the elastic means to the blocking plate, thereby making it possible to reduce costs and improve the productivity while correcting the drivability sensitive to the air flow , It is possible to eliminate the problems caused by the exhaust of air through the improvement of the proper airflow distribution and drastically reduce the noise generated thereby, and to improve the efficiency by ventilation, as well as to prevent the exhaust of the air- And the efficiency of heating can be increased, so that a great effect can be expected.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front elevational view of a preferred embodiment of an electric damper having a mechanical airflow control function according to the present invention;
FIGS. 2A and 2B are explanatory diagrams of an external rear view perspective view showing a preferred embodiment of an electric damper having a mechanical micro air volume control function,
3 is a front view of an air setting means applied to an electric damper having a mechanical airflow control function of the present invention.
4 is a front view showing another example of the air setting means applied to the electric damper having the function of adjusting the mechanical micro air volume of the present invention
FIG. 5 is a front view and a side sectional view showing still another example of the air setting means applied to the electric damper having the mechanical airflow control function of the present invention.
Fig. 6 is a perspective view showing an example of a blocking plate and an auxiliary blocking plate applied to an electric damper having a mechanical airflow control function of the present invention
Fig. 7 is an exploded perspective view of Fig.
8 is a cross-
FIG. 9 is a perspective view of a shut-off plate and an auxiliary shut-off plate applied to an electric damper having a mechanical air flow rate control function according to the present invention,
FIG. 10 is a sectional view for adjusting the external adjusting screw in a state in which the blocking plate is fully opened in FIG.
11 is a perspective view showing another embodiment of a blocking plate and an auxiliary blocking plate applied to an electric damper having a mechanical airflow control function of the present invention.
Fig. 12 is an exploded perspective view of Fig.
13 is an exploded perspective view showing a state in which another example of the elastic means applicable to the present invention is applied.
FIG. 14 is a cross-sectional view of a state in which the auxiliary blocking plate is operated in a state in which the blocking plate applied to the electric damper having the function of adjusting the mechanical micro air flow rate is partially opened
15 is a cross-sectional view showing a state in which a shut-off plate applied to an electric damper having a mechanical micro-air volume control function is fully opened and forced or exhausted from the intake port side
16 is an exploded perspective view showing a state in which another example of the auxiliary blocking plate applicable to the present invention is applied.
17 is a sectional view of Fig. 16
Fig. 18 is an example of application of the electric damper having the mechanical micro air volume control function provided in the present invention to a facility for forced exhaust or power exhaust from a loop fan by a suction force

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, preferred embodiments of an electric damper having a mechanical micro air volume control function provided by the present invention will be described with reference to the accompanying drawings.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a front elevational perspective view showing a preferred embodiment of an electric damper having a mechanical micro air flow rate control function according to the present invention; FIG.

The outer appearance of the electric damper 1 having the mechanical micro air volume control function provided in the present invention is the same as that of the conventional art. The intake dam 3 and the discharge mouth (not shown) are connected to both sides of the cylindrical body 2, The bracket 5 is provided on the outer side of the duct 100 and the case 6 is provided on the bracket 5 so that air can be flowed from the suction port 3 to the discharge port 4, Is assembled.

A drive motor 7 including a speed reducer and a circuit board 8 including a rotation control means are fixed to the bracket 5 inside the case 6, The blocking plate 10 is installed in a state of being coupled to the driving shaft 11 so that the blocking plate 10 is rotated forward or backward by an electric signal and the blocking plate 10 is provided with an auxiliary blocking plate (12).

In addition, air setting means 21 is provided on the side of the discharge port 4 to prevent excessive discharge of air during the installation of the electric damper 1.

FIG. 2 is a perspective view showing a rear view of an electric damper according to a preferred embodiment of the present invention. FIG. 3 is a perspective view of a motor damper according to an embodiment of the present invention. Fig. 4 is a front view showing another example of the air setting means applied to the electric damper having the mechanical airflow control function of the present invention. Fig.

The air setting means 21 applied to the present invention may be integrally formed in the main body 2 or may be formed in a combined shape.

That is, when the air setting means 21 is made of synthetic resin, the main body 2 is integrally formed when molding the main body 2 (see FIG. 2A), and when the air setting means 21 is made of metal, (See Figure 2b)

The air setting means 21 provided in the present invention is generally divided into a blocking plate 22 located on the side of the discharge port 4 and a setting plate 23 coupled to the blocking plate 22. [

The blocking plate 22 is integrally or detachably attached to the main body 2, and a vent hole 22a is formed at the center. The discharge hole 22a has a rectangular or quadrangular upper and lower side in a shape of arc so that the size of the discharge hole 22a can be enlarged.

The setting plate 23 is provided with a function of adjusting a discharge amount of air by covering a part of the discharge hole 22a formed in the closing plate 22. The adjusting plate 23 has a control hole 23a formed at the center thereof, And is fixed to the height adjusting member 22b formed integrally with the blocking plate 22 by the setting piece 24 so as to be positioned on the back surface of the hole 23a. Both ends of the setting plate 23 are coupled to the guide rail 22c formed on the barrier plate 22 and are slidable.

4, a height adjusting hole 22b is formed in a protruding shape at the lower end of the blocking plate 22 and an adjusting hole 23b is formed at the lower side of the setting plate 23 to cover the height adjusting hole 22b And an adjusting hole 23a is formed in the adjusting hole 23b so as to be fixed by the setting piece 24 so that even when the electric damper 1 having the mechanical air flow rate adjusting function is installed, .

When the setting plate 23 configured as described above is detached, the entire discharge hole 22a is opened to maximize the air discharge amount. When the setting plate 23 is assembled, the setting piece 24 is loosened, The discharge amount of the discharge hole 22a can be reduced if the setting piece 24 is locked in a state in which the discharge hole 22a is partially moved upward by moving the discharge hole 23 upward.

When the present invention is configured as shown in FIG. 4, the setting piece 24 is loosened while the electric damper 1 having the mechanical micro air flow rate adjusting function is installed, the adjusting hole 23b is pushed upward, The amount of discharge of the discharge hole 22a can be reduced by locking the setting piece 24. [

5 is a front view and a side sectional view showing still another example of the air setting means applied to the electric damper having the mechanical airflow control function of the present invention.

This allows the setting plate 23 constituting the air setting means 21 to be easily raised and lowered by a tool such as a drive from the outside.

That is, the variable projecting portion 23c is formed on the setting plate 23, which is slidably engaged with the guide rail 22c formed on the barrier plate 22, and a screw hole 23d is formed therein. And a fixing projection 22d which is coaxial with the screw hole 23d is formed on the upper end, and a lift hole 22e is formed in the fixing projection 22d. Further, the lifting bolt 31 is inserted through the lifting hole 22e, and the lower end is screwed to the screw hole 23d.

In the case of applying the air setting means 21 as described above, a hole is formed in the corrugated pipe 41 coupled to the discharge port 4, a tool such as a drive is inserted through the hole, and the elevating bolt 31 is unscrewed So that the setting plate 23 can be raised and lowered.

In the present invention, although not shown in the drawing, a vent hole 22a is formed radially in the barrier plate 22 with the air setting means 21, a shaft portion supported by the barrier plate 22 is formed at the center thereof, The ventilation hole communicating with the discharge hole 22a may be formed in a radial shape so that the center of the discharge hole 22a may be broken and rotated so that the discharge amount can be adjusted according to the degree of coincidence of the discharge hole 22a and the ventilation hole.

FIG. 6 is a perspective view showing an example of a blocking plate and an auxiliary blocking plate applied to an electric damper having a mechanical airflow control function according to the present invention, FIG. 7 is an exploded perspective view of FIG. 6, and FIG. 8 is a sectional view of FIG. will be.

The electric damper 1 having a mechanical micro air flow rate control function provided in the present invention is disposed inside the main body 2 as shown in the drawing and has a drive shaft 11 coupled to the main body 2 at a right angle to the air flow direction, In the state of being coupled to the bracket 5 by means of the rotation control means provided on the circuit board 8 when rotated by the power of the constant-speed rotating drive motor 7 mounted on the bracket 5, The configuration of the auxiliary blocking plate 12 provided on the blocking plate 10 for pivoting is actively improved.

The opening of the blocking plate 10 is in the range of 90 to 180 degrees, and any one of various configurations such as a method using a plurality of limit switches, an encode or volume switch, a method using a PCB integrated pattern method, . These configurations are well known in the art and are not shown in detail in the present invention.

The shielding plate 10 applied to the present invention is formed by bonding or inserting a shielding packing 10b made of a rubber material which is in contact with the inner surface of the body 2 to the edge side of the body 10a made of an iron plate or a synthetic resin plate, The shaft portion 10c in which the shaft 11 is inserted is formed symmetrically.

The body 10a constituting the blocking plate 10 is provided with the auxiliary blocking plate 12 so that when the suction force of the blocking plate 10 from the outlet port 4 is increased The discharge space A formed between the inner surface of the main body 2 and the blocking packing 10b is narrowed by the rotation of the auxiliary blocking plate 12 so as to obstruct the air flow so that the air flow can be discharged.

The auxiliary shielding plate 12 may be applied to one side or both sides of the shielding plate 10.

In the case of the construction in which the auxiliary shielding plate 12 is coupled to the shielding plate 10, the electric damper 1 having the mechanical airflow control function of Korean Patent No. 10-1702268 selected by the present inventor has been proposed. The configuration of the auxiliary blocking plate 12 is further improved so that the auxiliary blocking plate 12 is pivoted even in a weak air volume while the configuration is simplified, so that the sensitive operation can be smoothly performed.

The auxiliary blocking plate 12 according to the present invention is constructed in a plate shape and includes a fixing pin 15 formed on the lower side of the pin blocking portion 13 and coupled to the pin supporting portion 14 formed on the blocking plate 10, A side plate 12a is formed on both sides so as to face the blocking plate 10 so that an air inflow space 16 is formed between the auxiliary blocking plate 12 and the blocking plate 10 Respectively. At this time, the side plate 12a is formed as a triangle that gradually widens from the pin coupling portion 13 formed at the lower end to the upper portion. The auxiliary blocking plate 12 is made of aluminum, synthetic resin, or the like, To be sensitive to air flow.

The auxiliary pinning plate 12 is pressed against the blocking plate 10 by assembling together the blocking plate 10 and the torsion spring 17 having both ends connected to the auxiliary blocking plate 12 do.

When the auxiliary blocking plate 12 is raised in a state where the side plate 12a is formed on the auxiliary blocking plate 12 as described above, the blocking plate 10 and the side plates 12a of the auxiliary blocking plate 12 are separated from each other At this time, the air introduced into the air inflow space 16 flows out to the spaced space and the pressure to be transmitted to the auxiliary blocking plate 12 is lowered. As a result, malfunctions in the rotation operation of the auxiliary blocking plate 12 Lt; / RTI >

The present invention proposes a configuration in which the shielding plate 18 located on the outer side of the side plate 12a for solving the above problems is formed on the shielding plate 10. In the case of applying the shielding plate 18, Even if the side plate 12a of the shutoff plate 12 is spaced apart from the shutoff plate 10 so that a space is formed therebetween, the shutoff plate 10 located outside the shutoff plate 10 extends the function of the shutoff plate 10, It is possible to prevent the air flowing into the inflow space 16 from being lost to the outside, thereby ensuring the operational safety of the auxiliary blocking plate 12. [ At this time, the stopper protrusion 19 is formed on the shielding plate 18 and the stopper protrusion 19 is provided on the upper end of the auxiliary blocking plate 12 to prevent the auxiliary blocking plate 12 from turning excessively outward . The stopper protrusion 19 may be configured without the shielding plate 18 (see FIG. 6).

FIG. 9 is a perspective view of a shut-off plate and an auxiliary shut-off plate applied to an electric damper having a mechanical micro-air volume control function according to the present invention, and shows a state in which an external control screw is applied. FIG. Fig. 3 is a cross-sectional view for adjusting an external adjusting screw in Fig.

The present invention has a function to easily control the pressing force of the auxiliary blocking plate 12 from the outside in a state in which the electric damper 1 having the mechanical micro air flow rate adjusting function is installed. As shown in the figure, the stopper protrusion 19 is transversely disposed on the upper end of the auxiliary blocking plate 12, and the stopper protrusion 19 is provided on the stopper protrusion 19 And an external adjusting screw 28 is fastened to the screw hole 26. The main body 2 constituting the electric damper 1 is connected to the outside of the main body 2 in a state in which the blocking plate 10 is completely opened, And an outer adjusting hole 29 in which the adjusting screw 28 is exposed is formed in the outer adjusting hole 29. The outer adjusting hole 29 is provided with a stopper 30 for sealing, As shown in Fig.

 When it is necessary to adjust the opening angle of the auxiliary blocking plate 12 in a state where the blocking plate 10 is installed in the electric damper 1 as mentioned above, The cap 30 coupled to the external control hole 29 is separated and the tool such as a drive is inserted through the external control hole 29 to unlock the external adjustment screw 28 The degree of opening of the auxiliary blocking plate 12 in the blocking plate 10 may be adjusted by a method of tightening.

On the other hand, as shown in FIGS. 11 and 12, the auxiliary blocking plate 12 and the blocking plate 18 are provided with guide pins 12b on both sides of the upper end of the auxiliary blocking plate 12, Shaped guide holes 18a are formed around the fixing pins 15 so that the guide pins 12b are inserted so that the auxiliary blocking plates 12 can be guided to rotate.

In the present invention, an elastic means 20 is provided between the blocking plate 10 and the auxiliary blocking plate 12 to provide a means for pulling the auxiliary blocking plate 12 toward the blocking plate 10, 12 can be prevented from being operated by any or weak wind.

A preferred example of the elastic means 20 is a tension spring having both ends fixed to the blocking plate 10 and the auxiliary blocking plate 12 as shown in FIGS. 6 to 8 or 11 and 12. This provides a tensile force to pull the auxiliary blocking plate 12 toward the blocking plate 10 when the auxiliary blocking plate 12 is rotated by the pressure of the air flowing into the air inflow space 16, It is possible to provide the function of turning the auxiliary blocking plate 12 when it is provided with the strength to overcome the tensile force of the spring.

Another example of the elastic means 20 is that a compression spring is provided between the auxiliary blocking plate 12 and the stopper protrusion 19 to push the auxiliary blocking plate 12 toward the blocking plate 10 So that the auxiliary blocking plate 12 can be pivoted when the strength of the airflow is provided to the strength to overcome the compressive force of the compression spring.

At this time, although the two stopper projections 19 are separated from each other according to the drawings, it is natural that the stopper projections 19 can be integrally formed in consideration of workability and the like.

FIG. 14 is a sectional view of a state in which an auxiliary blocking plate is operated in a state where a blocking plate applied to an electric damper having a mechanical airflow control function is partially opened.

According to the drawings, a part of the blocking plate 10 is opened, and in this state, a suction force is generated at the discharge port 4 side. At this time, the auxiliary blocking plate 12 is directed toward the suction port 3 which is opposite to the discharge port 4.

The operation of the auxiliary blocking plate 12 is not performed when the suction amount is similar to the state in which the blocking plate 10 is opened and the auxiliary blocking plate 12 is rotated when the suction amount is excessively generated.

That is, when the suction amount increases at the discharge port 4 side, the air flow passing through the discharge space A between the blocking packing 10b provided at the edge of the blocking plate 10 and the inner surface of the main body 2 increases, The air resistance supplied to the air inflow space 16 formed on the side of the auxiliary blocking plate 12 becomes strong so that the fixing pin 15 is prevented from being pulled out while overcoming the tensile force or compressive force of the tension spring or compression spring constituting the resilient means 20. [ The air flow is gradually distanced from the shutoff plate 10 and disturbs the air flow to reduce the amount of air discharged to the discharge port 4. [

At this time, since the guide dofins formed on the auxiliary blocking plate 12 move along the guide holes 18a formed in the blocking plate 18, the operability of the auxiliary blocking plate 12 can be more precise and secure.

15 is a cross-sectional view showing a state in which a shut-off plate applied to an electric damper having a mechanical micro-air volume control function is fully opened and forced or exhausted from a suction port side.

According to the drawings, the blocking plate 10 is completely opened to be horizontal with respect to the direction of the air flow and is forcedly exhausted by the blower installed on the side of the suction port 3. At this time, the auxiliary blocking plate 12 is directed to the opposite side of the discharge port 4, so that the air flow is not hindered. That is, since the air inflow space 16 formed between the blocking plate 10 and the auxiliary blocking plate 12 is located in the direction opposite to the air flow direction, (10), the functionality of the auxiliary blocking plate (12) is lost.

When the blocking plate 10 is fully opened, unlike the case in which the blocking plate 10 is opened counterclockwise as shown in FIG. 11, the blocking plate 10 is rotated clockwise to completely close the electric damper 1, .

This operation has the effect of shortening the operation time. In other words, if the blocking plate 10 is rotated counterclockwise by 30 degrees and the blocking plate 10 is fully opened counterclockwise, it is possible to rotate by 240 degrees. If the blocking plate 10 is rotated clockwise to be completely opened, So that it is possible to perform a quick operation.

FIG. 16 is an exploded perspective view showing a state in which another example of the auxiliary blocking plate applicable to the present invention is applied, and FIG. 17 is a sectional view of FIG.

This is because, in the construction of the electric damper 1 having the mechanical micro air volume control function as described above, the operation of the auxiliary blocking plate 12 can be more sensitively provided by differently configuring the auxiliary blocking plate 12, So that the function of the blocking plate 12 can be smoothly provided.

The auxiliary blocking plate 12 is divided into the lower member 121 and the upper member 122. The pin member 13 is formed at the lower end of the lower member 121, A side plate 121a is formed on both sides so as to face the blocking plate 10 and an air inflow space 16 is formed between the auxiliary blocking plate 12 and the blocking plate 10, 121a are formed in a triangular shape gradually increasing in width from the side of the pin coupling hole 13 formed at the lower end to a thin plate of aluminum or synthetic resin so as to be sensitive to air flow.

The engagement of the lower member 121 is carried out by fixing the pin supporting portion 14 to the blocking plate 10 below the pinching portion 10c formed at the center of the blocking plate 10, The fixing pin 15 is installed horizontally and is assembled such that a pin fitting 13 formed on the lower side of the lower member 121 is passed on the fixing pin 15. The fixing pin 15 is provided with a blocking plate 10, The lower member 121 is pressed toward the blocking plate 10 by assembling the torsion spring 17 with both ends thereof being grounded to the member 121 together.

A second pin coupling hole 123 is formed in the upper end of the lower member 121. A pivot pin 124 is formed in the second pin coupling hole 123, And the third pin coupling hole 125 formed at the lower end is fitted to allow the phase member 122 to rotate about the pivot pin 124. [

The upper member 122 is formed with supporting protrusions 122a protruding toward the blocking plate 10 at both sides so that an air inflow space 16 is formed between the blocking plate 10 and the upper member 122 And a rotation angle adjusting piece 127 is formed on the lower side of the upper member 122 so as to cover the outer side of the lower member 121.

The rotation angle adjusting piece 127 is spaced apart from the lower member 121 when the upper member 122 and the lower member 121 are positioned in equilibrium and the lower member 121 is rotated when the upper member 122 is rotated outward. And the lower member 121 is provided with the wind pressure to provide the function of allowing the lower member 121 to be turned outward together with the upper member 122. [

This is because the upper member 122 sensibly operates in a weak wind and the lower member 121 supported by the torsion spring 17 having a strong elastic force in the primary rotation state of the upper member 122 is rotated So that it can be performed sequentially.

A stopper projection 19 formed integrally with the cover plate 18 is formed at the upper end of the upper member 122 and a stopper projection 19 is formed between the cover plate 10 and the upper member 122 constituting the auxiliary blocking plate 12, It is possible to provide a means by which the auxiliary blocking plate 12 can be pulled toward the blocking plate 10 by providing the means 20 so that the auxiliary blocking plate 12 can be prevented from being operated by any or weak wind do. At this time, since the structure of the elastic means 20 is the same as that of the above embodiment, a description thereof will be omitted.

(Example)

18 is a diagram showing an example of application of the electric damper having the mechanical micro air volume control function provided in the present invention to a facility for forced exhaust or power exhaustion by a suction force in a loop fan.

A roof fan 300 is installed on the upper side of the vertical cylinder 200 and a duct 100 connected to the respective generations is connected to the vertical cylinder 200. The electric damper 1 and a blowing fan 400 for forced exhaust are installed. At this time, if there is no blowing fan in the range hood, it is power exhaust, and if there is a blowing fan, it means forced exhaust.

In this state, the suction force of the loop fan 300 is provided to the electric damper 1 on the side of the discharge port 4 when only a part of the electric damper 1 operating in multiple stages is partially opened in one or two stages. 9, when the suction force of the loop fan 300 is stronger than the exhaust amount set in the electric damper 1 and the discharge is performed, according to the present invention, And the air can be mechanically operated by the air movement, thereby reducing the amount of discharged air and enabling the discharge of the regular air amount.

When the forced ventilation is performed using the ventilation fan 400, the blocking plate 10 of the electric damper 1 is fully opened. According to the present invention, between the blocking plate 10 and the auxiliary blocking plate 12 The air inflow space 16 formed in the air outlet 4 is turned toward the discharge port 4 so that the forced air discharge is smoothly performed.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of protection of the present invention should not be limited to the described embodiment, but should be determined by the equivalents as well as the claims that follow.

1: Electric damper (with mechanical air flow control function)
2: main body 3: inlet
4: Outlet 5: Bracket
6: Case 7: Driving motor
8: circuit board 10: shield plate
10a: Body 10b: Block packing
10c: shank portion 11: drive shaft
12: auxiliary blocking plate 12a: side plate
12b: guide pin 121: lower member
121a: side plate 122: upper member
122a: support protrusion 123: second pin coupling hole
124: Pivot pin 125: Third pin coupling port
127: Rotation angle adjustment
13: pin connecting portion 14: pin supporting portion
15: fixing pin 16: air inflow space
17: Torsion spring 18:
18a: guide ball 19: stopper projection
20: elastic means 21: air setting means
22: blocking plate 22a: vent hole
22b: Height adjuster 22c: Guide rail
22d: fixed projecting portion 22e: lifting hole
23: setting plate 23a: adjusting hole
23b: adjuster 23c: variable adjuster
23d: screw hole 24: setting piece
25: external control means 26:
28: External adjustment screw 29: External adjustment
30: plug 31: lifting bolt
100: Duct 200: Vertical opening
300: loop fan 400: blowing fan
A discharge space

Claims (13)

The drive shaft 11 extending in a direction perpendicular to the blocking plate 10 provided inside the main body 2 having the suction port 3 and the discharge port 4 is drawn out to the outside of the main body 2, (1) in which rotation control is performed in multiple stages by an installed rotation control means, the electric damper (1) comprising:
The outlet (4) is provided with an air setting means (21);
The air setting means 21 includes a blocking plate 22 formed integrally or detachably with the main body 2 and having a discharge hole 22a formed therein and a guide rail 22c formed on the blocking plate 22, And a setting plate (23) for adjusting the size of the discharge hole (22a) formed in the blocking plate (22).
The method of claim 1,
The adjusting plate 23 is formed with a length adjusting hole 23a and is fixed to the height adjusting member 22b formed on the blocking plate 22 by the setting piece 24 so as to be positioned in the discharging hole 22a, And the size of the hole (22a) can be adjusted.
The method of claim 1,
A height adjusting hole 22b is formed in a protruding shape at the lower end of the blocking plate 22 and an adjusting hole 23b is formed at a lower side of the setting plate 23 to cover the height adjusting hole 22b, Wherein the adjusting hole (23a) is formed in the hole (23b) and fixed by a setting piece (24).
The method of claim 1,
A variable projection 23c is formed on the setting plate 23 and a screw hole 23d is formed therein;
The upper end of the blocking plate 22 is formed with a fixing protrusion 22d coaxial with the screw hole 23d and forms a lift hole 22e therethrough;
And a lower end of an elevating bolt (31) inserted through a lift hole (22e) is screwed into the screw hole (23d) so that the setting plate (23) can be raised and lowered. Damper.
The method of claim 1,
An auxiliary blocking plate 12 mechanically operated on one side or both side surfaces of the blocking plate 10 is formed to form an air inflow space 16 between the blocking plate 10 and the lower end of the blocking plate 10 And the auxiliary shielding plate 12 is connected to the shielding plate 10 by the elastic force of the first torsion spring 17 whose both ends are supported by the shielding plate 10 and the auxiliary shielding plate 12 10), and the air inflow space (16) is configured to face toward the suction port (3) when the blocking plate (10) is partially opened;
The method of claim 5, further comprising:
The auxiliary blocking plate (12) is provided with external control means (25) for controlling the pressing force externally;
The stopper protrusion 19 is transversely disposed on the upper end of the auxiliary blocking plate 12 and the external adjusting means 25 is provided with a screw hole 26 in the stopper protrusion 19 to fasten the external adjusting screw 28 ;
The main body 2 constituting the electric damper 1 forms an external control hole 29 in which the external adjusting screw 28 is exposed in a state in which the blocking plate 10 is completely opened;
Wherein the outer adjusting hole (29) is provided with a stopper (30) for closing the outer adjusting hole (29) so that the outer adjusting hole (29) can be hermetically sealed by the cap (30).
The method according to claim 5 or 6,
A shielding plate 18 fixed to the shielding plate 10 is provided at both sides of the one or both of the auxiliary shielding plates 12 so that an air inflow space 16 formed between the shielding plate 10 and the auxiliary shielding plate 12 ) Of the auxiliary damper (12) is prevented from being discharged to the outside, so that the auxiliary damper (12) can be actuated sensitively.
The method of claim 7,
The auxiliary blocking plate 12 includes a lower member 121 coupled to the blocking plate 10 by a fixing pin 15,
And a top member (122) coupled to the lower member (121) by a pivot pin (124);
The support member 122 is formed at both sides of the upper member 122 with support protrusions 122a protruding toward the blocking plate 10 and at the lower side of the upper member 122, (127) is formed on the outer circumferential surface of the damper.
The method of claim 7,
Wherein a stopper projection (19) bent toward the side of the auxiliary blocking plate (12) is formed at the upper end of the blocking plate (18) to restrict the rising angle of the auxiliary blocking plate (12) .
The method of claim 7,
Wherein the auxiliary blocking plate (12) is configured to control the standing force by an elastic force of the elastic means (20) when the auxiliary blocking plate (12) is standing up.
The method of claim 10,
Wherein the elastic means (20) is a tension spring having both ends fixed to the blocking plate (10) and the auxiliary blocking plate (12).
The method of claim 10,
Wherein the elastic means (20) is a compression spring located between the auxiliary blocking plate (12) and the stopper projection (19).
The method of claim 7,
A guide pin 12b is formed on both sides of the tip end of the auxiliary blocking plate 12 and the guide pin 12b is guided by a guide hole 18a formed in the arc- A mechanical damper having a mechanical micro air volume control function.

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