KR20160003973U

KR20160003973U - Electric Damper for Prevent Headwinds

Info

Publication number: KR20160003973U
Application number: KR2020150002998U
Authority: KR
Inventors: 박우영
Original assignee: (주)예네
Priority date: 2015-05-11
Filing date: 2015-05-11
Publication date: 2016-11-21

Abstract

The present invention relates to an electric damper for preventing a backward wind, and in particular, when it is confirmed that there is no use of a ventilation hole, an electric damper plate can be switched to an open position to prevent contamination of the room air. In the case where the electric damper plate is sensed, the electric damper plate is switched to the closed position, and when the absence of the backward wind is detected, the electric damper plate is again switched to the ventilatable open state. It is possible to keep it in a comfortable state without being.

Description

{Electric Damper for Prevent Headwinds}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric damper for preventing reverse wind which is used in a heat exchange ventilator or a ventilation hole (hereinafter collectively referred to as "ventilation hole"), The damper plate is temporarily closed when a backward wind is generated in the state where it is switched to the open position and then the electric damper plate is switched to an open state where the electric damper plate can be ventilated again when the reverse wind is released.

Generally, it is well known that ventilation openings of apartments, business buildings, kitchen hoods, and bathrooms are provided with electric damper which is opened and closed by the rotation operation of the damper to discharge or block air. An example of these electric dampers is shown in the patent literature.

That is, as shown in the following patent documents, the conventional electric damper is provided with a damper plate on the inside of the cylindrical housing, so that the drive shaft is rotated in a direction perpendicular to the damper plate so as to block the air flow, The damper plate is electrically connected to a control circuit of a driving unit provided outside the cylindrical housing.

However, in the conventional electric dampers, as shown in the following patent documents, when the ventilator is operated, the damper plate for opening and closing the damper plate is switched to the open state to completely discharge the contaminated air in the room, Since the damper plate of the electric damper also closes the cylindrical housing, the ventilation of the room is not properly performed in this state, so that only the electric damper plate may be opened for temporary ventilation of the room. However, when the damper plate is opened, a backward wind entering the room causes a problem of indoor pollution due to the backward wind that enters through the ventilation pipe.

Accordingly, when the damper plate is opened, the damper plate is quickly switched to the closed position in the case of occurrence of the backward air entering the room through the ventilation hole, and then the damper plate is switched back to the open state Is required.

KR Registration No. 10-1027846 KR Patent Publication No. 10-2011-0017709 KR Patent Publication No. 10-2014-0040307

The present invention has been made to overcome the above-described problems of the prior art and to provide various additional advantages, and it is an object of the present invention to quickly switch the damper plate to the closed or open position depending on whether a back- And an object of the present invention is to provide an electric damper for preventing backlash, which makes it possible to maintain a comfortable state without air contamination even in a non-use state of a ventilating room.

The above object is achieved by the electric damper for preventing a backward flow provided according to the present invention.

According to an aspect of the present invention, there is provided an electric damper for preventing backlash, the damper comprising: a damper plate having a cylindrical housing that is installed in communication with a discharge pipe provided with a ventilating hole, the damper plate being pivotally supported inside the cylindrical housing to shut off the interior of the housing; A driving unit mounted on one side of the housing to apply a driving force for switching the damper plate to an open or shutoff state by the shaft; And a circuit which is installed in the housing and which is capable of transmitting an electric signal to the driving unit so as to send a driving signal for switching the damper plate to the opening position toward the driving unit in the absence of the ventilation hole, Wherein when the inflow of the backward air through the housing is sensed, the damper plate is switched to the closing position by the driving unit, and when the backward airflow is detected again, a signal for switching the damper plate to the open position is transmitted, And a reverse wind sensing unit for generating a signal for switching to the open or closed position.

In a temporary example, the reverse-wind sensing unit includes a pair of position change sensing displacement sensors installed to protrude downward with a predetermined interval between the inner upper rotor of the housing and electrically connected to the driving unit so as to be able to transmit electric signals, And a movable member of a flexible material installed in a state of extending downward from an inner upper portion of the housing in a state where the displacement sensor faces the displacement sensor in front of the displacement sensor and having a restoring force for allowing the displacement sensor to detect displacement. .

In another embodiment, the movable member is made of rubber and is formed in a plate shape having a predetermined width to receive the backward wind.

According to the present invention, when the damper plate is required to be opened in a state in which the ventilation hole is stopped, even if a backwind factor is generated in the room, the damper plate is quickly switched to the closing position, The damper plate is switched to the open position again to provide the effect that the room can be kept in a pleasant condition free from air contamination even in the unused state of the ventilation openings.

1 is a view showing an electric damper according to the present invention as seen from a front side,
Fig. 2 is a cross-sectional view along the II line direction in Fig. 1,
FIG. 3 is an enlarged view showing only the portion "a"

Hereinafter, a more preferred embodiment of the electric damper according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing the electric damper according to the present invention as seen from the front side.

As shown in the drawings, the electric damper 100 for preventing backward flow according to the present invention has a hollow hollow cylindrical shape having openings at both ends connected to the ventilation discharge pipe 10 (see FIG. 2) (Not shown). The damper plate 120 is installed integrally with the drive shaft 130 extending across the housing 110 from the drive unit 140. The damper plate 120 is mounted on the drive shaft 130, The housing 110 is opened or closed according to the forward and backward motions of the forward and backward motors built in the driving unit 140 to block indoor air discharge and outdoor air inflow. Such a configuration is a general construction such as the electric damper shown in the patent documents. The characteristic feature of the present invention is that the sensing part 150 installed on the upper part of the housing 110 controls the opening / closing operation even when the ventilator is non- So that the interior of the room can be kept in a comfortable state without any air pollution factor at all times. This will be described in more detail with reference to FIG. 2 and FIG.

2 is a cross-sectional view taken along a line I-I in Fig. 1, and Fig. 3 is an enlarged view of a portion "a "

As shown in the drawing, the counter-wind-preventing electric damper 100 according to the present invention is provided with a counter-wind sensing unit 150 for sensing a counter-wind at a position spaced rearward from the damper plate 120 as viewed in FIG.

The reverse wind sensing unit 150 includes a pair of position change sensing sensors 152 disposed to protrude downward with a certain interval between the upper and lower rotors of the cylindrical housing 110, And a movable member 154 of a flexible material provided in a suspended state extending downward from an inner upper portion of the housing 110 in a state of facing the pair of displacement sensors 152 with a predetermined width, The driving unit 140 is electrically connected to the driving unit 140 that operates to open and close the damper plate 120 and provides electrical signals to the driving unit 140 for the backward wind sensed by the backward wind sensing unit 150, So that the damper plate 120 can be opened and closed.

With such a configuration, for example, when the user is present in the bathroom and / or toilet, the damper plate 120 of the electric damper 100 is also opened due to the continuous operation of the ventilation opening 10, There is no serious problem. However, when the operation of the ventilation opening 10 is stopped because there is no user, the passage of the housing 110 is blocked by the damper plate 120, and the ventilation of the room is not performed at all Air pollution that causes odor is causing. Therefore, it is necessary to open the damper plate 120 to ventilate the room. However, when the damper plate 120 is opened, a backward wind comes in from the outside through the opened damper plate 120, which may cause the indoor air to be more contaminated.

However, in the case of the present invention, when a reverse air flows into the housing 110 from the outside in a state where the damper plate 120 is opened as shown in FIG. 2, the movable body 154, which is normally in the vertical state, The moment it is fitted, it will be turned backward according to the strength of the wind. The movable body 154 is formed in a plate shape having a predetermined width so as to receive a backward wind, and is formed of a rubber material having a restoring force (elastic force) so as to be easily bent back to its original position when the reverse wind is fitted . The movable body 154 may be made of a material other than a rubber material so long as it is bent to bend backward and then returns to its original state.

When the movable body 154 is bent backward, the movable body 154 is displaced between a pair of position sensing displacement sensors 152 disposed immediately adjacent to each other, and is detected by the displacement sensor 152, The displacement detection signal is transmitted to the driving unit 140 so that the driving unit 140 is operated as an electric signal for driving the damper plate 120 to be quickly switched to the closed position.

When the reverse wind is lost in this state, the movable body 154, which has been displaced by the reverse wind and displaced by the displacement sensor 152, is quickly restored to its original state by its own restoring force, The driving unit 140 causes the damper plate 120 to be driven to be switched back to the originally opened position by applying a signal indicating that the displacement detection is released toward the compressor 140 so that the room can be ventilated again.

The operation of the backward wind sensing unit 150 can be continuously performed as long as the backward wind causes the damper plate 120 for indoor ventilation to be open.

The opening of the damper plate 120 in the suspended state of the ventilation opening 10 causes the driving unit 140 to keep the damper plate 120 in the open state when the use of the ventilation hole 10 is stopped for a predetermined time So that a ventilation state for discharging the polluted air in the room can be achieved.

When the ventilation hole 10 is used when the damper plate 120 is opened or closed, the opening and closing operation of the damper plate 120 is switched to the initialized state, I will not.

An electrical control circuit configuration for the opening and closing operation of the damper plate 120 by the driving unit 140 according to whether or not the reverse wind sensing unit 150 senses the backward wind and the electric control circuit configuration for the damper plate 120 when the ventilation hole 10 is shut down, And an electric control circuit configuration in which the opening and closing operations of the damper plate 120 according to the use of the ventilation opening 10 are switched to the initialized state so as to avoid the problem of the use of the ventilation opening 10 It is possible to carry out various kinds of operations. In the present embodiment, only one of them will be specifically described.

The present invention has the advantage that it can be widely applied to any place where heat exchange or ventilation is required.

While the present invention has been described in connection with certain exemplary embodiments thereof, those skilled in the art will be able to make various changes and modifications by referring to the various features set forth herein. Accordingly, it should be pointed out that the scope of the present invention is not limited to the described embodiments, but should be construed according to the appended claims.

100: Electric damper
110: Housing
120: damper plate
140:
150:

Claims

A damper plate having a cylindrical housing that is installed to be in communication with a discharge pipe provided with a ventilating hole and which is pivotally supported inside the cylindrical housing so as to open and close the inside of the housing;
A driving unit mounted on one side of the housing to apply a driving force to switch the damper plate into an open state or a blocked state by the shaft; And
And a damper plate which is installed in the housing and constitutes a circuit capable of transmitting an electric signal to the driving unit, sends a driving signal for switching the damper plate to the opening position toward the driving unit when the ventilation hole is not used, The damper plate is switched to the closed position by the driving unit when a backward flow is detected through the housing, and when it is sensed that there is no backward flow, the damper plate is opened And a reverse wind sensing unit for generating a signal for switching to a closed position or a closed position.

The method according to claim 1,
The reverse-direction sensing unit includes a pair of position-change-sensing displacement sensors that are installed to protrude downward with a predetermined distance from an inner upper rotor of the housing, and are electrically connected to the driving unit to transmit electric signals. And a movable member which is installed in a state of extending downward from an upper portion of the inner side of the housing in a state of facing the displacement sensor and having a restoring force for detecting the displacement of the displacement sensor. Damper.

The method of claim 2,
Wherein the movable member is made of rubber and is formed in a plate shape having a predetermined width to receive a backward flow.