KR20210047801A - Motorized diffuser - Google Patents

Abstract

According to an exemplary embodiment of the present invention, an electric diffuser includes: a body connected to an air flow path of a ventilation system to allow air to flow through the inside; an opening and closing means actuated to control a cross-sectional area of the air flow path in the body; a motor operating the opening and closing means; and a cover combined with the body, and fixed to the ceiling of an indoor area where a mounting hole is formed, to discharge the air having passed through the body, into the indoor area. The opening and closing means includes: a rotary shaft combined with a motor shaft of the motor and penetrating the inside of the body to be placed orthogonally to a guiding direction of the air; and a damper rotated around the rotary shaft to control the cross-sectional area of the air flow path in the body. The rotary shaft is placed on an eccentric position dislocated from a center axis going across the center of the damper, and components are made to be public to reduce the number of molds to be manufactured and the number of components, thereby lowering production costs and improving convenience in management.

Description

Electric diffuser {MOTORIZED DIFFUSER}

The present invention relates to an electric diffuser.

The ventilation system is a device that adjusts the indoor temperature and humidity according to the user's request, or ventilates or purifies the indoor air to keep the room comfortable.

An electric diffuser for opening and closing the flow path of air supplied to the room according to the operation mode of the ventilation system is connected to the air flow path of the ventilation system.

The electric diffuser may be designed in a variety of structures to suit the environment in which it is installed. Conventionally, the parts constituting the electric diffuser of various structures are not commonly used. There was a problem in that production cost was increased and management was not easy due to excessive production quantity.

The prior art related to such an electric diffuser is shown in Public Utility Model No. 20-2010-0010441.

The present invention has been conceived to solve the above-described problems, and has an object thereof to provide an electric diffuser in which the number of molds and the number of parts are reduced by sharing parts, thereby reducing cost and improving management convenience.

However, the object of the present invention is not limited thereto, and even if not explicitly stated, the object or effect that can be grasped from the solutions or embodiments of the problems described below will be included therein.

An electric diffuser according to an exemplary embodiment of the present invention includes: a body connected to an air flow path of a ventilation system to allow air to pass therethrough; An opening and closing means driven to adjust the cross-sectional area of the air passage inside the body; A motor driving the opening and closing means; And a cover coupled to the body and fixed to the ceiling of the room in which the mounting hole is formed to discharge the air that has passed through the body to the room, wherein the opening and closing means is coupled to the motor shaft of the motor and the interior of the body And a rotation shaft disposed to be perpendicular to the direction of induction of the air through and a damper that is rotated around the rotation shaft to adjust a cross-sectional area of the air flow path inside the body, and the rotation shaft is a central axis that crosses the center of the damper. It can be placed in an eccentric position that deviates from it.

The damper may have a left area and a right area different from each other with respect to the rotation axis.

The damper includes a pair of straight portions disposed in parallel with each other and a pair of curved portions connecting both ends of the pair of straight portions, and the rotation shaft is disposed to be orthogonal to the pair of straight portions so that both side ends are Each may be located in the straight portion.

The ratio between the vertical distance from the rotation axis to the left curved part and the right curved part may be 9:11 to 7:13.

The damper may have an asymmetric structure in which one straight portion of the pair of straight portions is longer than the straight portion of the other side, and the pair of curved portions is symmetrical with respect to the central axis.

The cover includes a cover body having an opening in the center and a protruding extension part extending upward from the edge of the opening and inserted into the lower inner surface of the body to be coupled, and a plurality of coupling protrusions are formed on the outer surface of the protruding extension part. It may be arranged along the circumference of the protruding extension.

A plurality of coupling grooves are formed at the lower end of the body to which the coupling protrusions are inserted, and the coupling grooves include a vertical part extending upward from the lower end of the body and a horizontal part extending horizontally from the end of the vertical part. It has a structure cut into a shape, and a locking protrusion is formed in the horizontal part to prevent the coupling protrusion from being separated from the vertical part, and is cut out of the lower outer surface of the body to be cut from the side of the vertical part and the lower surface of the horizontal part A reinforcing rib for reinforcing mechanical strength may be formed to protrude in the portion forming the structure.

In the inner center of the protruding extension part, a guide hole penetrating in the vertical direction and a plurality of support members radially arranged to connect the outer surface of the guide hole and the inner surface of the protruding extension part are provided, and the cover is provided at the lower side of the cover. A door for spreading the air passing through it in a lateral direction is disposed, and a protrusion protruding upward is provided in the center of the upper surface of the door, and the protrusion is inserted into the guide hole to detachably couple the door to the cover. I can.

The door is opened in a vertical direction to form a through hole through which the air passes, a support through which the protrusion protrudes is provided in the center of the through hole across the through hole, and the air is diffused on both left and right sides of the support. A plurality of guide blades for adjusting the direction in which they are curved may extend obliquely to the inner surface of the through hole.

A state in which a second screw thread is formed on the outer surface of the protrusion, and a first screw thread is formed on the inner surface of the guide hole to be screwed with the second screw thread of the protrusion, and the second screw thread is screwed with the first screw thread. In the door may be moved vertically through rotation.

The cover has a plurality of fixing ribs protruding upward from the cover body and extending radially from the rim of the opening, the fixing ribs are trimmed in a stepped structure to be disposed adjacent to the rim of the cover body, and An outer surface disposed adjacent to the edge of the opening and including a vertical part protruding further upward than the horizontal part to be fitted into the mounting hole of the indoor ceiling, and connected to the horizontal part of the vertical part at the center of the opening The size of the diameter of the virtual circle having the distance to as the radius may correspond to the diameter of the mounting hole.

The body may have at least one housing open toward the top on an outer surface thereof, and a cover fixing member for fixing and supporting the cover to the ceiling together with the body may be detachably mounted on the housing.

The cover fixing member includes a body inserted and received in the housing, and a torsion spring connected to the body to be elastically supported and extending toward the outside of the cover, and the body is caught by penetrating the bottom surface of the housing on a lower surface. The ceiling is provided with a pair of fixed hooks and connection pins on both sides opposite to each other, and the torsion spring is axially coupled to the connection pin so that the body is inserted into the mounting hole and placed inside the ceiling. The upper surface of the can be pressed by elasticity.

A groove through which the torsion spring passes may be provided on the front surface of the housing by being cut from an upper end toward the bottom surface.

A fixing groove to which the motor is fixed is provided on one side of the body, and a fastening boss is formed in a position corresponding to a fastener provided on the motor, and is fastened to the fastening boss through the fastener. The motor may be fixedly supported in the fixing groove by a fastening means.

On one side of the body, a covering wall is formed to protrude along the circumference of the fixing groove to surround the fixing groove, and a cover may be opened and closed at an open upper end of the blocking wall.

A motor shaft through hole through which the motor shaft of the motor passes may be formed in the fixing groove, and the motor shaft passing through the motor shaft through hole may be coupled to the opening and closing means.

A stopper for limiting rotation of the opening/closing means may be provided on an inner surface of the body on which the motor shaft through-hole is formed.

And a magnet disposed on one of the body and the damper, and a reed switch disposed on the other of the body and the damper, wherein the reed switch is turned on/off according to whether or not the magnet is close to the opening/closing means. Opening and closing can be detected.

The magnet is disposed at an edge of the damper spaced apart from the rotation shaft, and the reed switch is disposed on one side of the body corresponding to the magnet in the closed state of the opening and closing means. It can be turned on/off according to proximity.

According to the electric diffuser according to the present invention, there is an effect of reducing cost and improving convenience of management by reducing the number of molds and the number of parts by making common parts.

Various and beneficial advantages and effects of the present invention are not limited to the above-described contents, and may be more easily understood in the course of describing specific embodiments of the present invention.

1 is a perspective view schematically showing an electric diffuser according to a first embodiment of the present invention.
Figure 2 is an exploded perspective view schematically showing the electric diffuser of Figure 1;
Figure 3 is a schematic diagram showing the opening and closing means in the electric diffuser of Figure 2;
4A and 4B are cross-sectional views schematically showing a closed state and an open state of the electric diffuser of FIG. 2 by opening and closing means, respectively.
Figure 5a is an exploded perspective view schematically showing a cover fixing member in the electric diffuser of Figure 2;
Figure 5b is a schematic view showing a coupling protrusion provided in the cover and a coupling groove provided in the body in the electric diffuser of Figure 2;
Figure 6 is a plan view schematically showing the electric diffuser of Figure 2;
7A is a schematic view showing a mounting hole of a ceiling and a fixing rib provided in a cover in the electric diffuser of FIG. 2.
7B is a schematic diagram showing a state in which the electric diffuser of FIG. 2 is mounted in a ceiling mounting hole.
8 is an exploded perspective view schematically showing an electric diffuser according to a second embodiment of the present invention.
9A and 9B are cross-sectional views schematically showing a closed state and an open state of the electric diffuser of FIG. 8 by opening and closing means, respectively.
10A is a perspective view schematically showing an electric diffuser according to a third embodiment of the present invention.
10B is a longitudinal cross-sectional view showing the electric diffuser according to the third embodiment of the present invention along a straight line parallel to the axis of rotation with respect to the magnet in the closed state by the opening and closing means.

Hereinafter, preferred embodiments will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art may easily implement the present invention. However, in describing a preferred embodiment of the present invention in detail, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, the same reference numerals are used throughout the drawings for parts having similar functions and functions. In addition, in this specification, terms such as'upper','upper','upper','lower','lower','lower', and'side' are based on the drawings, and are actually elements or components. May vary depending on the direction in which the is placed.

In addition, throughout the specification, when a part is said to be'connected' with another part, it is not only'directly connected', but also'indirectly connected' with another element in the middle. Includes. In addition, "including" a certain component means that other components may be further included rather than excluding other components unless otherwise stated.

An electric diffuser according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 7.

The electric diffuser 100-1 according to the first embodiment of the present invention is connected to the air flow path of the ventilation system 3 and is coupled to the body 110 and the body 110 through which air passes, and the mounting hole ( 2) A cover 120 that is fixed to the ceiling 1 of the room in which it is formed and discharges air that has passed through the body 110 into the room, and an opening/closing means 130 that is driven to adjust the cross-sectional area of the air flow path of the body 110 , And may be configured to include a motor 140 for driving the opening and closing means (130).

The body 110 may be formed in a substantially cylindrical shape that is open in the vertical direction. A fixing groove 111 to which the motor 140 is fixed is provided on one side of the body 110 by being recessed toward the inside of the body 110, and a fastener provided on the motor 140 in the fixing groove 111 ( A fastening boss 113 is formed at a position corresponding to the 142, and the motor 140 is inserted into the fixing groove 111 by a fastening means 143 that passes through the fastener 142 and is fastened to the fastening boss 113. It can be fixedly supported. In addition, a motor shaft through hole 112 through which the motor shaft 141 of the motor 140 passes is formed in the fixing groove 111, so that the motor shaft 141 passing through the motor shaft through hole 112 is formed in the body ( 110) may be configured to be coupled to the opening and closing means (130).

In one embodiment, a stopper 114 for limiting rotation of the opening and closing means 130 may be provided on an inner surface of the body 110 on which the motor shaft through hole 112 is formed (see FIGS. 4A and 4B ). . The stopper 114 may limit the rotational direction and degree of rotation of the opening/closing means 130 so that the opening/closing means 130 rotates between a horizontal state and a vertical state with respect to the air flow path inside the body 110.

On one side of the body 110, a blocking wall 115 may be formed to protrude along the circumference of the fixing groove 111 to surround the fixing groove 111. A cover 116 may be fastened to an open upper end of the blocking wall 115 so as to be able to open and close to protect the motor 140 disposed therein.

The cover 120 may include a cover body 121 having an opening 121a formed at the center thereof, and a protruding extension 122 extending upward from the edge of the opening and inserted into and coupled to the lower inner surface of the body 110. have. And, at the inner center of the protruding extension 122, a plurality of radially disposed guide holes 123 and the outer surfaces of the guide holes 123 and the inner surfaces of the protruding extension 122 are connected in the vertical direction. A support member 124 may be provided.

A plurality of coupling protrusions 125 may be formed on the outer surface of the protruding extension part 122 to be arranged along the circumference of the protruding extension part 122. Further, a plurality of coupling grooves 117 to which the coupling protrusion 125 is fitted and fixed may be formed at the lower end of the body 110.

5B, the coupling groove 117 includes a vertical portion 117a extending upward from the lower end of the body 110 and a horizontal portion 117b extending horizontally from the end of the vertical portion 117a. It has a structure cut into a'b' shape, and a locking protrusion 117c that prevents the coupling protrusion 125 from being separated from the vertical portion 117a may be formed in the horizontal portion 117b. Therefore, when the cover 120 is coupled to the lower end of the body 110, the cover 120 is rotated while the coupling protrusion 125 is inserted upward along the vertical portion 117a of the coupling groove 117 to be coupled. The protrusion 125 moves horizontally along the horizontal portion 117b of the coupling groove 117 so that the protrusion 125 crosses the locking protrusion 117c and is fixed. Accordingly, it is possible to attach and detach the body 110 and the cover 120 more easily and conveniently.

In one embodiment, a reinforcing rib (117d) for reinforcing mechanical strength is formed by being cut out of the lower outer surface of the body 110 to form the side surface of the vertical portion (117a) and the lower surface of the horizontal portion (117b). Can be.

A door 150 for lateral diffusion of air passing through the cover 120 may be disposed under the cover 120. A protrusion 151 protruding upward is provided in the center of the upper surface of the door 150, and the protrusion 151 is inserted into the guide hole 123 so that the door 150 may be detachably coupled to the cover 120. .

The protrusion 151 has a second screw thread 151a formed on the outer surface, and the guide hole 123 has a first thread 123a screwed with the second screw thread 151a of the protrusion 151 on the inner surface In a state in which the second screw thread 151a is screwed with the first screw thread 123a, the door 150 may be configured to move vertically through rotation. Through this, the opening 121a of the cover 120 may be closed or the gap between the cover 120 and the door 150 may be adjusted.

On the other hand, it is necessary to fix the cover 120 together with the body 110 to the ceiling 1 in a state in which the body 110 is inserted and disposed in the mounting hole 2. To this end, the body 110 has at least one housing 118 open toward the top on the outer surface, and the cover 120 together with the body 110 is fixed to the ceiling 1 in the housing 118. The cover fixing member 160 for supporting may be detachably mounted.

As shown in FIG. 5A, the cover fixing member 160 is a torsion spring that is inserted into the housing 118 and is connected to be elastically supported to the body 161 and the body 161 to extend toward the outside of the cover body 121 (162) may be included. The body 161 is provided with a pair of hooks 161a that penetrate through the bottom surface of the housing 118 on the lower surface and are fixed and have connection pins 161b on both sides opposite to each other, and a torsion spring 162 It may be configured to pressurize the upper surface of the ceiling 1 by elasticity in a state where the body 110 is axially coupled to the connection pin 161b and is inserted into the mounting hole 2 and disposed inside the ceiling 1 ( See Fig. 7b). In this case, a groove 118a through which the torsion spring 162 passes may be provided on the front surface of the housing 118 by being cut from the top toward the bottom surface.

In addition, the cover 120 may include a plurality of fixing ribs 126 protruding upward from the cover body 121 and extending radially from the edge of the opening 121a.

The fixed rib 126 is trimmed in a stepped structure and is disposed adjacent to the rim of the horizontal part 126a and the opening 121a disposed adjacent to the rim of the cover body 121 and protrudes further upward than the horizontal part 126a. It may include a vertical part (126b) that is fitted into the mounting hole (2) of the indoor ceiling (1).

Referring to FIG. 7A, a diameter (d) of a virtual circle (C) having a radius (r) between the center of the opening (121a) and the outer surface connected to the horizontal part (126a) of the vertical part (126b) ) May have a structure substantially corresponding to the diameter (D) of the mounting hole (2). Therefore, the cover 120 fixed to the ceiling 1 is fixed by fitting the fixing rib 126 into the mounting hole 2, so that the body 110 disposed in the mounting hole 2 shakes together with the cover 120. Can be prevented.

The opening/closing means 130 is coupled to the motor shaft 141 of the motor 140 and rotates around the rotation shaft 131 and the rotation shaft 131 disposed to be perpendicular to the direction of air induction through the inside of the body 110 Thus, it may include a damper 132 that adjusts the cross-sectional area of the air passage inside the body 110.

One end of the rotation shaft 131 is coupled to the motor shaft 141, and the other end of the rotation shaft 131 is a rotation shaft support part 119 formed on the inner surface of the body 110 facing the motor shaft through hole 112 Can be rotatably coupled to.

Referring to FIG. 3, the damper 132 includes a pair of straight portions 133 arranged parallel to each other and a pair of curved portions 134 connecting both ends of the pair of straight portions 133, and , The rotational shaft 131 is arranged to be orthogonal to the pair of straight portions 133, so that both side ends are respectively located on the straight portion 133, but the central axis (X) crossing orthogonal to the pair of straight portions 133 It can be placed in an eccentric position that deviates from it. That is, the rotation shaft 131 may not be located on the central axis X crossing the center of the damper 132 but may be located at an eccentric position toward one side. In this case, the ratio (A:B) between the vertical distance (A) from the rotation axis 131 to the left curved portion 134 and the vertical distance (B) to the right curved portion 134 is 9:11 to 7: May be 13.

Accordingly, the damper 132 may have an asymmetric structure (eg, a structure in which one side is wider than the other side) in which the area on the left side and the area on the right side are different from each other based on the rotation shaft 131.

In addition, the damper 132 has an asymmetric structure in which one straight portion 133a of the pair of straight portions 133 is longer than the straight portion 133b of the other side, and the pair of curved portions 134 It may have a structure that is symmetrical with respect to the central axis (X). As the rotation shaft 131 is positioned at an eccentric position in the center of the damper 132 as described above, the rotation shaft 131 may be configured to rotate by being disposed at an eccentric position in the body 110 instead of the center of the air flow path. .

As shown in FIG. 7B, the height (H1) of the top of the ceiling (1) is limited to approximately 170-190 mm when building apartments and houses, and the duct forming the air flow path of the ventilation system (3) has a diameter (H2) of 100 mm. For this reason, the maximum height H3 of the electric diffuser 100-1 connected to the duct is limited to 80mm. Therefore, when the rotation shaft 131 is positioned in the center as in the prior art, there is a problem that it interferes with the guide hole 123 or the protrusion 151 of the door 150 during rotation. In the present invention, this problem of interference is solved by designing the position of the rotation shaft 131 to be eccentric.

Referring to FIG. 4A, when the damper 132 is rotated about the rotation shaft 131 by one-way driving of the motor 140 to become a horizontal state, the air flow path inside the body 110 is closed, thereby supplying air to the room. Can be blocked.

Referring to FIG. 4B, when the damper 132 is rotated about the rotation shaft 131 by driving in the opposite direction of the motor 140 and is in an upright state, the air flow path inside the body 110 is opened to open the body. Air that has passed through the air flow path 110 and the inside of the cover 120 may be diffused laterally by the door 150 provided at the lower side of the cover 120 and may be supplied into the room.

8 and 9 schematically show an electric diffuser according to a second embodiment of the present invention. Hereinafter, the electric diffuser according to the second embodiment of the present invention will be described with reference to FIGS. 8 and 9, but a detailed description of the configuration overlapping with the above-described first embodiment will be omitted and newly added or replaced in this embodiment. The explanation will be focused on the structured structure.

The electric diffuser 100-2 according to the second embodiment of the present invention has the same configuration as the first embodiment described above, and includes a body 110, a cover 120, an opening/closing means 130, a motor 140, and a door. It may include 170.

The door 170 may be opened in a vertical direction to form a through hole 170a through which air passes. In the center of the through-hole 170a, a support 172 from which the protrusion 171 protrudes is provided across the through-hole 170a, and a plurality of guides for adjusting the direction in which air is diffused on both left and right sides of the support 172 The wings 173 may be provided to be curved and extending obliquely to the inner surface of the through hole 170a.

A second screw thread 171a is formed on the outer surface of the protrusion 171, and the guide hole 123 is formed with a first screw thread 123a that is screwed with the second screw thread 171a of the protrusion 171 on the inner surface. In a state in which the second screw thread 171a is screwed with the first screw thread 123a, the door 170 may be configured to move in the vertical direction through rotation.

Air that has passed through the air passage inside the body 110 and the cover 120 may be supplied to the room through the through hole 170a opened between the guide blades 173. In addition, by adjusting the direction of the guide blades 173 by the rotation of the door 170, the direction in which air is supplied can be adjusted.

10A and 10B schematically illustrate an electric diffuser according to a third embodiment of the present invention. Hereinafter, the electric diffuser according to the third embodiment of the present invention will be described with reference to FIGS. 10A and 10B, but a detailed description of the configuration overlapping with the above-described first embodiment will be omitted and newly added or replaced in this embodiment. The explanation will be focused on the structured structure.

The electric diffuser 100-3 according to the third embodiment of the present invention has a body 110, a cover 120, an opening/closing means 130, a motor 140, and a door in the same configuration as the first embodiment. 150 may be included.

The electric diffuser 100-3 according to the third embodiment of the present invention may further include a detection sensor disposed on the body 110 and the damper 132 to detect the opening and closing of the opening/closing means 130. According to the electric diffuser 100-3 according to the third embodiment of the present invention, by arranging the detection sensor on the body 110 and the damper 132, the damper 132 is normally opened and closed by the operation of the motor 140 Since it is possible to effectively detect whether or not it can be implemented, it is possible to effectively secure maintenance by checking for malfunctions in time.

The detection sensor may be a proximity switch such as a magnetic proximity switch or an inductive proximity switch, but is not limited thereto as long as it can detect the opening and closing of the opening and closing means 130.

Illustratively, referring to FIGS. 10A and 10B, the detection sensor is disposed on the magnet 180 disposed on one of the body 110 and the damper 132, and the other one of the body 110 and the damper 132. A reed switch 190 is included, and the reed switch 190 is turned on/off depending on whether or not the magnet 180 is close to the magnet 180 to sense the opening and closing of the opening/closing means 130. In other words, by arranging one of the magnet 180 and the reed switch 190 on the damper 132 rotating around the rotation shaft 131 and the other on the body 110, the damper 132 is As it rotates around (131), one of the magnet 180 and the reed switch 190 disposed on the damper 132 rotates together to be relatively close to or away from the other disposed on the body 110. , The reed switch 190 is operated on/off to detect the opening and closing of the opening/closing means 130. Here, when the reed switch 190 is turned on, the related signal may be transmitted to the control unit of the ventilation system or to the internal control unit or other components of the electric diffuser 100-3. Here, the related signal may be, for example, an alarm signal indicating an alarm, a light-emitting signal for lighting a lamp, a malfunction signal, etc., but is not limited thereto, and for example, may be a signal for activating or stopping the operation of other components.

For example, the magnet 180 is disposed at the edge of the damper 132 spaced apart from the rotation shaft 131, and the reed switch 190 is in the closed state of the opening and closing means 130 (that is, the above-described opening and closing means 130). It is disposed on one side of the body 110 corresponding to the magnet 180 in a horizontal state), and may be turned on/off according to whether the magnet 180 is close by rotation of the damper 132. Here, as described above, the damper 132 of the opening and closing means 130 is a pair of straight portions 133 arranged parallel to each other and a pair of curves connecting both ends of the pair of straight portions 133 Including a portion 134, the rotation shaft 131 is disposed so as to be orthogonal to the pair of straight portions 133, so that both side ends are respectively located on the straight portion 133, but the pair of straight portions 133 is orthogonal to the It may be disposed at an eccentric position that deviates from the transverse central axis (X). In this case, the magnet 180 may be disposed on one of the pair of straight portions 133. In addition, as described above, when the damper 132 has an asymmetric structure in which one straight portion 133a of the pair of straight portions 133 is longer than the straight portion 133b of the other side, the magnet 180 ) Is disposed on a straight portion 133a on one side having a longer length, and the rotation shaft 131 and the magnet 180 may be located on both sides of the central axis (X), respectively, based on the central axis (X), By increasing the maximum separation distance between the magnet 180 and the reed switch 190 (that is, the separation distance between the magnet 180 and the reed switch 190 in the open state (vertical state) of the opening and closing means 130), The detection accuracy can be improved.

In addition, the magnet 180 and the reed switch 190 may be mounted on each of the damper 132 and the body 110 in various ways. Specifically, referring to FIGS. 10A and 10B, a magnet receiving groove 135 opened laterally is formed at the edge of the damper 132 adjacent to the motor 140 and spaced apart from the rotation shaft 131, and a magnet ( 180) is accommodated in the magnet receiving groove 132, and the cover wall 115 protrudes along the circumference of the fixing groove 111 and the fixing groove 111 to which the motor 140 is fixed on one side of the body 110 It is formed and provided to surround the fixing groove 111, the cover 116 is fastened to open and close the open top of the blocking wall 115, the reed switch 190 is the magnet 180 in the fixing groove 111 It can be mounted on the corresponding part. Here, in the fixing groove 111, a support jaw for supporting at least one of the upper and lower portions of the reed switch 190 is formed, and the reed switch 190 is a combination of the truss bolter 200 and the fixing groove 111 It may be mounted in contact with the fixing groove, and specifically, by coupling the truss bolter 200 to the fixing groove 111, the reed switch 190 is the head of the truss bolter 200 and the fixing groove 111 It can be mounted interfering with each other. Through the above-described structure, the magnet 180 is exposed by the open opening of the magnet receiving groove 132 in a state received in the magnet receiving groove 132 of the damper 132, the opening and closing means 130 is closed. When rotating between the state (that is, the horizontal state of the above-described opening and closing means 130) and the open state (that is, the vertical state of the above-described opening and closing means 130), it is mounted in the fixing groove 11 of the body 110 The reed switch 190 may be turned on or off through proximity or distance between the magnet 180 rotating together with the rotation of the opening/closing means 130. Specifically, for example, in order to detect the normal closing of the opening/closing means 130, the opening/closing means 130 is in an open state (that is, in a vertical state of the above-described opening/closing means 130). (Horizontal state of 130) due to a malfunction in the rotation process, when it is not in a completely closed state (that is, when it is not in a completely horizontal state), the reed switch 190 is located within a certain distance range of the magnet 180 Since it is not operated, it can be turned on and output the corresponding signal (eg, malfunction signal, light emission signal, alarm signal, etc.), so that malfunction can be checked in time to effectively secure maintenance. However, the arrangement method of the magnet 180 and the reed switch 190 of the present invention is not limited to the above-described method, and various arrangement methods as long as the reed switch 190 can detect whether the reed switch 190 is close to the magnet 180 It can be implemented as

In another embodiment, the magnet 180 is disposed at the edge of the damper 132 spaced apart from the rotation shaft 131, and the reed switch 190 is in the open state of the opening/closing means 130 (that is, the above-described opening/closing means ( 130) is disposed on the side of the body 110 corresponding to the magnet 180, and the reed switch 190 is rotated according to the proximity of the magnet 180, which rotates according to the rotation of the rotation shaft 131. It can also be turned on/off. Accordingly, the reed switch 190 can detect whether the opening/closing means 130 is in an accurate open state (ie, a vertical state). In another embodiment, there may be a plurality of reed switches 190 such as two. Therefore, it is possible to accurately detect an open state (ie, a vertical state), a closed state (ie, a horizontal state), or an opening angle between the open and closed state of the opening and closing means 130, It can ensure the operation effectively.

In addition, the electric diffuser receives a detection signal from a detection sensor (for example, a malfunction signal, a light emission signal, an alarm signal, etc. generated according to whether the reed switch 190 is close to the magnet 180), and according to the detection signal, the motor ( It may further include a control panel 210 for controlling the operation of 140). The control panel 210 may be accommodated in the fixing groove 111, and may control on or off of the motor 140 according to a detection signal received from a detection sensor. In addition, the control panel 210 may output the detection signal received from the detection sensor to the outside (for example, a ventilation system). For example, when the control panel 210 drives the motor 140 to rotate from an open state to a closed state, the opening and closing means 130 is not in an accurate closed state (ie, a horizontal state) , The reed switch 190 is turned on because the magnet 180 is not located within a certain distance range and transmits a detection signal to the control panel 210, so that the control panel 180 stops the operation of the motor 140. In this case, the control panel 210 may output a detection signal to the outside as needed.

As described above, according to the electric diffuser according to the first, second, and third embodiments of the present invention, the number of molds and the number of parts are reduced by sharing parts, thereby reducing cost and improving convenience in management. have.

The embodiments of the present invention have been described above with reference to the accompanying drawings, but those of ordinary skill in the art to which the present invention pertains have learned that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. You can understand. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not limiting.

100-1, 100-2: electric diffuser
110: body 111: fixing groove
112: motor shaft through hole 113: fastening boss
114: stopper 115: blocking wall
116: cover 117: coupling groove
118: housing 119: rotating shaft support
120: cover 121: cover body
121a: opening 122: protruding extension
123: guide hole 124: support member
125: coupling protrusion 126: fixing rib
130: opening and closing means 131: rotating shaft
132: damper 133: straight portion
134: curved portion 135: magnet receiving groove
140: motor 141: motor shaft
142: fastener 143: fastening means
150, 170: door
151, 171: protrusion 160: cover fixing member
161: body 162: torsion spring
172: support 173: guide wing
180: magnet 190: reed switch
200: truss bolt 210: control panel

Claims (20)

A body connected to the air flow path of the ventilation system to allow air to pass therethrough;
An opening and closing means driven to adjust the cross-sectional area of the air passage inside the body;
A motor driving the opening and closing means; And
A cover coupled to the body and fixed to the ceiling of the room in which the mounting hole is formed to discharge the air passing through the body into the room;
Including,
The opening/closing means is coupled to the motor shaft of the motor and penetrates the inside of the body and is disposed to be perpendicular to the direction of induction of the air, and a damper that is rotated around the rotation shaft to adjust the cross-sectional area of the air flow path inside the body. Including,
The rotating shaft is an electric diffuser, characterized in that disposed at an eccentric position deviating from a central axis crossing the center of the damper. The method of claim 1,
The damper is an electric diffuser, characterized in that the area on the left and the area on the right are different from each other with respect to the rotation axis. The method according to claim 1 or 2,
The damper includes a pair of straight portions disposed parallel to each other and a pair of curved portions connecting both ends of the pair of straight portions,
The rotating shaft is arranged to be orthogonal to the pair of the straight portion, the electric diffuser, characterized in that the two side ends are respectively located in the straight portion. The method of claim 3,
The electric diffuser, characterized in that the ratio between the vertical distance from the rotation shaft to the left curved portion and the vertical distance to the right curved portion is 9:11 to 7:13. The method of claim 3,
The damper has an asymmetric structure in which one straight portion of the pair of straight portions is longer than the straight portion of the other side, and the pair of curved portions has a structure that is symmetrical with respect to the central axis. Diffuser. The method of claim 1,
The cover includes a cover body having an opening in the center and a protruding extension extending upwardly from an edge of the opening and inserted into and coupled to a lower inner surface of the body,
An electric diffuser, characterized in that a plurality of coupling protrusions are formed on the outer surface of the protruding extension and are arranged along the circumference of the protruding extension. The method of claim 6,
A plurality of coupling grooves to which the coupling protrusion is fitted and fixed are formed at the lower end of the body,
The coupling groove has a structure cut into a'L' shape including a vertical portion extending upward from a lower end of the body and a horizontal portion extending horizontally from an end of the vertical portion, and the coupling protrusion is in the horizontal portion. A locking jaw is formed to prevent separation from the vertical portion,
An electric diffuser, characterized in that a reinforcing rib for reinforcing mechanical strength is formed to protrude from a portion of the lower outer surface of the body to form a side surface of the vertical portion and a lower surface of the horizontal portion. The method of claim 6,
In the inner center of the protruding extension part, a guide hole penetrating in the vertical direction and a plurality of support members radially arranged to connect the outer surface of the guide hole and the inner surface of the protruding extension part are provided,
A door for distributing air that has passed through the cover in a lateral direction is disposed under the cover, and a protrusion protruding upward is provided in the center of the upper surface of the door, and the protrusion is inserted into the guide hole to thereby open the door. Electric diffuser, characterized in that the detachably coupled to the cover. The method of claim 8,
The door is opened in a vertical direction to form a through hole through which the air passes, a support through which the protrusion protrudes is provided in the center of the through hole across the through hole, and the air is diffused on both left and right sides of the support. An electric diffuser, characterized in that a plurality of guide blades for adjusting the direction in which the guide blades are curved and extend obliquely to the inner surface of the through hole. The method of claim 8,
A second screw thread is formed on the outer surface of the protrusion, and a first screw thread is formed on the inner surface of the guide hole to be screwed with the second screw thread of the protrusion,
The electric diffuser, wherein the door is moved vertically through rotation in a state in which the second screw thread is screwed with the first screw thread. The method of claim 6,
The cover has a plurality of fixing ribs protruding upward from the cover body and extending radially from an edge of the opening,
The fixed rib is a horizontal part trimmed in a stepped structure and disposed adjacent to the rim of the cover body, and a vertical part disposed adjacent to the rim of the opening and protruding further upward than the horizontal part to fit into the mounting hole of the indoor ceiling. Contains parts,
The electric diffuser, characterized in that the size of a diameter of a virtual circle having a radius of a distance from the center of the opening to an outer surface connected to the horizontal part of the vertical part corresponds to a diameter of the mounting hole. The method of claim 1,
The body has at least one housing open toward the top on the outer surface,
An electric diffuser, characterized in that a cover fixing member for fixing and supporting the cover to the ceiling, together with the body, is detachably mounted on the housing. The method of claim 12,
The cover fixing member includes a body inserted and received in the housing, and a torsion spring connected to the body to be elastically supported and extending toward the outside of the cover,
The body has a pair of hooks on its lower surface which penetrates through the bottom surface of the housing and is fastened, and has connection pins on both sides opposite to each other, and the torsion spring is axially coupled to the connection pin so that the body An electric diffuser, characterized in that the upper surface of the ceiling is elastically pressed while being inserted into the mounting hole and disposed inside the ceiling. The method of claim 13,
An electric diffuser, characterized in that a groove through which the torsion spring passes is provided on a front surface of the housing by being cut from an upper end toward the bottom surface. The method of claim 1,
A fixing groove to which the motor is fixed is provided on one side of the body, and a fastening boss is formed in a position corresponding to a fastener provided on the motor, and is fastened to the fastening boss through the fastener. An electric diffuser, characterized in that the motor is fixedly supported in the fixing groove by a fastening means. The method of claim 15,
An electric diffuser, characterized in that a covering wall is protruded along a circumference of the fixing groove on one side of the body to surround the fixing groove, and a cover is fastened to open and close the open upper end of the blocking wall. The method of claim 15,
The motor shaft through-hole through which the motor shaft of the motor passes is formed in the fixing groove, and the motor shaft passing through the motor shaft through-hole is coupled to the opening and closing means. The method of claim 17,
An electric diffuser, characterized in that a stopper for limiting rotation of the opening and closing means is provided on an inner surface of the body on which the motor shaft through hole is formed. The method of claim 1,
And a magnet disposed on one of the body and the damper, and a reed switch disposed on the other of the body and the damper, wherein the reed switch is turned on/off according to whether or not the magnet is close to the opening/closing means. Electric diffuser, characterized in that to detect the opening and closing. The method of claim 19,
The magnet is disposed at an edge of the damper spaced apart from the rotation shaft, and the reed switch is disposed on one side of the body corresponding to the magnet in the closed state of the opening and closing means. Electric diffuser, characterized in that on / off depending on the proximity of the.

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