KR102556396B1 - Motorized diffuser - Google Patents

Abstract

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 through which air passes; an opening/closing means driven to adjust a cross-sectional area of an air passage inside the body; a motor driving the opening/closing means; and a cover coupled to the body and fixed to an indoor ceiling in which a mounting hole is formed to discharge air passing through the body into the room. The opening/closing means is coupled to the motor shaft of the motor and passes through the inside of the body and is disposed perpendicular to the air induction direction, and a damper that rotates around the rotation shaft to adjust the cross-sectional area of the air passage inside the body. Including, the rotating shaft is disposed at an eccentric position that is out of alignment with the central axis crossing the center of the damper, and by sharing parts to reduce the number of molds and the number of parts, cost reduction and management convenience can be improved.

Description

Motorized diffuser {MOTORIZED DIFFUSER}

The present invention relates to a motorized diffuser.

A ventilation system is a device that adjusts indoor temperature and humidity or ventilates or purifies indoor air to maintain a comfortable indoor environment according to a user's request.

An electric diffuser is connected to and installed in the air passage of the ventilation system to open and close the passage of air supplied to the room according to the operation mode of the ventilation system.

The electric diffuser can be designed in various structures to suit the environment in which it is installed. Conventionally, the parts constituting the electric diffuser of these various structures are not common, and each is manufactured in a different form to form a mold for molding the part. There was a problem in that the production cost was increased and the management was not easy due to the excessive production quantity.

Prior art related to such an electric diffuser is shown in Utility Model Publication No. 20-2010-0010441.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an electric diffuser that reduces costs and improves management convenience by reducing the number of molds and parts by common parts.

However, the object of the present invention is not limited thereto, and even if not explicitly mentioned, it will be said that the object or effect that can be grasped from the solution or embodiment of the problem described below is also 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 through which air passes; an opening/closing means driven to adjust a cross-sectional area of an air passage inside the body; a motor driving the opening/closing means; and a cover coupled to the body and fixed to an indoor ceiling having a mounting hole to discharge air passing through the body into the room, wherein the opening/closing means is coupled to the motor shaft of the motor and is installed inside the body. and a damper for adjusting a cross-sectional area of an air flow path inside the body by being rotated about the rotation shaft and a rotation shaft disposed orthogonally to the air induction direction passing through the body, wherein the rotation shaft is a central axis crossing the center of the damper It can be arranged in an eccentric position that is out of line with

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

The damper includes a pair of straight parts disposed parallel to each other and a pair of curved parts connecting both ends of the pair of straight parts, and the rotating shaft is arranged to be orthogonal to the pair of straight parts so that both side ends are Each may be located on the straight line portion.

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

The damper may have an asymmetrical structure in which one of the pair of straight parts has a longer length than the other straight part, and the pair of curved parts may have a symmetrical structure with respect to the central axis.

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

A plurality of coupling grooves into which the coupling protrusions are inserted are formed at the lower end of the body, and the coupling grooves include a vertical portion extending upward from the lower end of the body and a horizontal portion extending horizontally from the end of the vertical portion. It has a structure cut in a 'shape' shape, and a locking jaw is formed on the horizontal part to prevent the coupling protrusion from escaping to the vertical part, and is cut among the outer surfaces of the lower end of the body to form a side surface of the vertical part and a lower surface of the horizontal part. A reinforcing rib for reinforcing mechanical strength may be protrudingly formed in the portion constituting the.

A guide sphere penetrating in the vertical direction and a plurality of radially disposed support members connecting the outer surface of the guide sphere and the inner surface of the protruding extension portion are provided at the inner center of the protruding extension portion, and the cover is provided on the lower side of the cover. A door is disposed to diffuse the passing air in a lateral direction, and a protrusion protruding upward is provided at the center of an upper surface of the door, and the protrusion is inserted into the guide hole to detachably couple the door to the cover. can

The door is opened in a vertical direction to form a through hole through which the air passes, and a support protruding part is provided at the center of the through hole to cross 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 of the guide blades may be curved and extend obliquely toward the inner surface of the through hole.

A state in which a second screw thread is formed on an outer surface of the protrusion, a first screw thread screwed to the second screw thread of the protrusion is formed on an inner surface of the guide member, and the second screw thread is screwed with the first screw thread. In the door can be moved in the vertical direction through rotation.

The cover protrudes upward from the cover body and includes a plurality of fixing ribs extending radially from the rim of the opening, the fixing ribs being trimmed in a stepped structure and disposed adjacent to the rim of the cover body, a horizontal part; and An outer surface of the vertical part connected to the horizontal part at the center of the opening and including a vertical part disposed adjacent to the edge of the opening and protruding upward more than the horizontal part to be inserted into the mounting hole of the indoor ceiling A size of a diameter of an imaginary circle whose radius is the distance to may correspond to the diameter of the mounting hole.

The body may include at least one housing opened upward 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 into and accommodated 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 hooked on a lower surface through a bottom surface of the housing. A pair of hooks are fixed and connection pins are provided on both sides facing each other, and the torsion spring is axially coupled to the connection pin so that the body is inserted into the mounting hole and disposed inside the ceiling. The upper surface of can be pressed by elasticity.

A groove through which the torsion spring passes may be provided on a 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 at a position corresponding to a fastener provided in the motor in the fixing groove, and is fastened to the fastening boss through the fastener The motor may be fixedly supported in the fixing groove by the fastening means.

A covering wall protrudes along the circumference of the fixing groove on one side of the body and is provided to surround the fixing groove, and a cover can be opened and closed at an open top of the cover wall.

A motor shaft through-hole through which a 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/closing means.

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

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 depending on whether or not it is close to the magnet, thereby controlling the opening/closing means. opening and closing can be detected.

The magnet is disposed at an edge of the damper spaced apart from the rotating 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, so that the rotation of the damper causes It can be turned on/off depending on proximity.

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

Various advantageous advantages and effects of the present invention are not limited to the above description, and will be more easily understood in the process 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 view showing an opening and closing means in the electric diffuser of Figure 2;
4a and 4b are cross-sectional views schematically illustrating a closed state and an open state of the electric diffuser of FIG. 2 by an opening/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 on the cover and a coupling groove provided on the body in the electric diffuser of FIG.
6 is a plan view schematically illustrating the electric diffuser of FIG. 2;
Figure 7a is a schematic view showing a fixing rib provided in a cover and a ceiling mounting hole in the electric diffuser of Figure 2;
Figure 7b is a schematic view showing a state in which the electric diffuser of Figure 2 is mounted in the mounting hole of the ceiling.
8 is an exploded perspective view schematically illustrating an electric diffuser according to a second embodiment of the present invention.
9A and 9B are cross-sectional views schematically illustrating a closed state and an open state of the electric diffuser of FIG. 8 by an opening and closing means, respectively.
10A is a perspective view schematically illustrating an electric diffuser according to a third embodiment of the present invention;
Figure 10b is a longitudinal cross-sectional view showing the electric diffuser according to a third embodiment of the present invention along a straight line parallel to the rotational axis based on the magnet in a closed state by the opening and closing means.

Hereinafter, preferred embodiments will be described in detail so that those skilled in the art can easily practice the present invention with reference to the accompanying drawings. 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 gist of the present invention, the detailed description will be omitted. In addition, the same reference numerals are used throughout the drawings for parts having similar functions and actions. In addition, in this specification, terms such as 'upper', 'upper', 'upper surface', 'lower', 'lower', 'lower surface', and 'side surface' are based on the drawings, and are actually elements or components may vary depending on the direction in which is placed.

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

A motorized 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 through which air passes, and the body 110, and is coupled to the mounting hole ( 2) A cover 120 fixed to the ceiling 1 of the room where the cover 120 discharges air passing through the body 110 into the room, and an opening/closing means 130 driven to adjust the cross-sectional area of the air passage 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 have a substantially cylindrical shape open in the vertical direction. On one side of the body 110, a fixing groove 111 to which the motor 140 is fixed is recessed toward the inside of the body 110, and the fastener provided in the motor 140 is provided in the fixing groove 111 ( 142), the motor 140 is attached to the fixing groove 111 by the fastening means 143 fastened to the fastening boss 113 by passing through the fastener 142 and having the fastening boss 113 formed at a position corresponding to the fastening boss 113. It can be fixed 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, and the motor shaft 141 passing through the motor shaft through-hole 112 passes through the body ( 110) may be configured to be coupled with the opening/closing means 130.

In one embodiment, a stopper 114 for limiting rotation of the opening/closing means 130 may be provided on the inner surface of the body 110 where the motor shaft through-hole 112 is formed (see FIGS. 4A and 4B). . The stopper 114 may limit the rotation 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 passage inside the body 110 .

A covering wall 115 protrudes from one side of the body 110 along the circumference of the fixing groove 111 and may be provided to surround the fixing groove 111 . A cover 116 may be coupled to an open top of the cover wall 115 to protect the motor 140 disposed therein.

The cover 120 may include a cover body 121 having an opening 121a formed in the center and a protruding extension 122 extending upward from the rim of the opening and being inserted into and coupled to the lower inner surface of the body 110. there is. And, at the inner center of the protruding extension part 122, a guide sphere 123 penetrated in the vertical direction and a plurality of radially disposed connecting the outer surface of the guide sphere 123 and the inner surface of the protruding extension part 122. 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 and arranged along the circumference of the protruding extension part 122 . In addition, a plurality of coupling grooves 117 into which coupling protrusions 125 are inserted and fixed may be formed at the lower end of the body 110 .

As shown in FIG. 5B, the coupling groove 117 includes a vertical portion 117a extending upward from the bottom of the body 110 and a horizontal portion 117b extending horizontally from the end of the vertical portion 117a. It has a structure cut in an 'L' shape, and a locking jaw 117c that prevents the coupling protrusion 125 from escaping to 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 and coupled in a state in which the coupling protrusion 125 is inserted upward along the vertical portion 117a of the coupling groove 117. The protrusion 125 moves horizontally along the horizontal portion 117b of the coupling groove 117 and crosses the locking jaw 117c to be locked and 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 protruded and formed in a portion of the lower outer surface of the body 110 that is cut and forms the side surface of the vertical portion 117a and the lower surface of the horizontal portion 117b. It can be.

A door 150 may be disposed on a lower side of the cover 120 to spread air passing through the cover 120 in a lateral direction. A protrusion 151 protruding upward is provided at the center of the upper surface of the door 150, and the protrusion 151 is inserted into the guide hole 123 to detachably couple the door 150 to the cover 120. .

The protrusion 151 has a second screw thread 151a formed on its outer surface, and the guide sphere 123 has a first screw thread 123a screwed to the second screw thread 151a of the protrusion 151 on its inner surface. And, 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 to the ceiling 1 together with the body 110 in a state where the body 110 is inserted into the mounting hole 2 and disposed. To this end, the body 110 has at least one housing 118 open upwards on its outer surface, and the cover 120 together with the body 110 is fixed to the ceiling 1 on the housing 118. The cover fixing member 160 for supporting may be detachably mounted.

As shown in FIG. 5A, the cover fixing member 160 includes a body 161 inserted and accommodated in the housing 118 and a torsion spring connected to the body 161 so as to be elastically supported and extending toward the outside of the cover body 121. (162). The body 161 has a pair of hooks 161a that pass through the bottom surface of the housing 118 and are fixed on the lower surface, and have connection pins 161b on both sides facing each other, and a torsion spring 162 It may be configured to be axially coupled to the connecting pin 161b so that the body 110 is inserted into the mounting hole 2 and presses the upper surface of the ceiling 1 by elasticity in a state where it is disposed inside the ceiling 1 ( see Figure 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 radially extending from the edge of the opening 121a.

The fixing rib 126 is trimmed in a stepped structure and is disposed adjacent to the border of the horizontal part 126a and the opening 121a disposed adjacent to the edge of the cover body 121 and protrudes upward more than the horizontal part 126a It may include a vertical part 126b fitted into the mounting hole 2 of the indoor ceiling 1.

Referring to FIG. 7A, the diameter (d) of an imaginary circle (C) having a radius (r) of the distance from the center of the opening (121a) to the outer surface connected to the horizontal part (126a) of the vertical part (126b) The size of ) may have a structure substantially corresponding to the diameter D of the mounting hole 2. Therefore, as the cover 120 fixed to the ceiling 1 is fixed by being inserted into the mounting hole 2 by the fixing rib 126, the body 110 disposed in the mounting hole 2 shakes along with the cover 120. that can be prevented

The opening/closing means 130 is coupled to the motor shaft 141 of the motor 140 and rotates around the rotating shaft 131 and the rotating shaft 131 disposed orthogonally to the direction of air induction through the inside of the body 110. The body 110 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 119 formed on the inner surface of the body 110 facing the motor shaft through-hole 112 It can be rotatably coupled to.

Referring to FIG. 3, the damper 132 includes a pair of straight parts 133 disposed parallel to each other and a pair of curved parts 134 connecting both ends of the pair of straight parts 133, , The rotating shaft 131 is arranged to be orthogonal to the pair of straight parts 133, and both side ends are located on the straight parts 133, respectively, and the central axis (X) crossing the pair of straight parts 133 at right angles It can be arranged in an eccentric position that is out of line with That is, the rotating shaft 131 may be located at a position eccentric to one side without being located on the central axis (X) crossing the center of the damper 132 . In this case, the ratio (A:B) between the vertical distance A from the rotating shaft 131 to the left curved part 134 and the vertical distance B to the right curved part 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 opposite side) in which an area on the left side and an area on the right side of the rotation axis 131 are different from each other.

In addition, the damper 132 has an asymmetric structure in which one straight part 133a of one pair of straight parts 133 has a longer length than the other straight part 133b, and the pair of curved parts 134 It may have a symmetrical structure with respect to the central axis (X). In this way, as the rotary shaft 131 is located at an eccentric position from the center of the damper 132, the rotary shaft 131 may be disposed at an eccentric position within the body 110 rather than at the center of the air flow path and configured to rotate. .

As shown in FIG. 7B, when constructing apartments and houses, the height H1 of the upper part of the ceiling 1 is limited to approximately 170 to 190 mm, and the duct constituting the air flow path of the ventilation system 3 has a diameter H2 of 100 mm. Accordingly, the maximum height H3 of the electric diffuser 100-1 connected to the duct is limited to 80 mm. Therefore, when the rotating shaft 131 is located at the center as in the prior art, a problem of interference with the guide sphere 123 or the protrusion 151 of the door 150 occurs during rotation. In the present invention, the problem of interference is solved by designing the position of the rotating shaft 131 to be eccentric.

Referring to FIG. 4A , when the damper 132 is rotated around the rotating shaft 131 by the one-way driving of the motor 140 to be in a horizontal state, the air flow path inside the body 110 is closed to supply air into the room. may be blocked.

Referring to FIG. 4B , when the damper 132 is rotated about the rotating shaft 131 by driving in the opposite direction of the motor 140 and becomes upright, the air flow path inside the body 110 is opened and the body Air that has passed through the air flow path inside the cover 120 and the cover 120 can be supplied to the room while being diffused laterally by the door 150 provided on the lower side of the cover 120 .

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 detailed descriptions of components overlapping with those of the first embodiment will be omitted and newly added or replaced in this embodiment. The structure is mainly explained.

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

The door 170 may be opened in a vertical direction to form a through hole 170a through which air passes. At the center of the through hole 170a, a support 172 with a protrusion 171 protruding is provided across the through hole 170a, and on both left and right sides of the support 172, a plurality of guides control the direction in which air is diffused. The wings 173 may be curved and extended 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 a first screw thread 123a screwed with the second screw thread 171a of the protrusion 171 is formed on the inner surface of the guide sphere 123. And, in a state where the second screw thread 171a is screwed with the first screw thread 123a, the door 170 may be configured to move vertically through rotation.

Air passing 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 air supply direction can be adjusted.

10A and 10B schematically show a motorized diffuser according to a third embodiment of the present invention. Hereinafter, an electric diffuser according to a third embodiment of the present invention will be described with reference to FIGS. 10A and 10B, but detailed descriptions of components overlapping with those of the first embodiment will be omitted, and newly added or replaced in this embodiment. The structure is mainly explained.

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

The electric diffuser 100-3 according to the third embodiment of the present invention may further include a sensor disposed on the body 110 and the damper 132 to sense the opening and closing means 130. According to the electric diffuser 100-3 according to the third embodiment of the present invention, by disposing 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 can be implemented effectively, so that malfunctions can be identified in time to ensure effective maintenance.

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/closing means 130.

Illustratively, referring to FIGS. 10A and 10B, the detection sensor is a magnet 180 disposed on any 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 according to proximity to the magnet 180 to detect opening/closing of the opening/closing means 130 . In other words, by disposing one of the magnet 180 and the reed switch 190 on the damper 132 rotating around the rotating shaft 131 and placing 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 and moves relatively close to or farther from the other disposed on the body 110. , the reed switch 190 is operated by turning on/off to sense the opening and closing of the opening/closing means 130. Here, when the reed switch 190 is turned on, it may transmit a related signal 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 notifying an alarm, a light emitting signal for lighting a lamp, a malfunction signal, etc., but is not limited thereto, and may be, for example, a signal for starting or stopping the operation of other components.

For example, the magnet 180 is disposed on the edge of the damper 132 spaced apart from the rotating shaft 131, and the reed switch 190 is in the closed state of the opening and closing means 130 (that is, of 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 to the damper 132 according to rotation of the damper 132 . Here, as described above, a pair of straight parts 133 in which the dampers 132 of the opening and closing means 130 are disposed parallel to each other and a pair of curved lines connecting both ends of the pair of straight parts 133 It includes a portion 134, and the rotating shaft 131 is arranged so as to be orthogonal to the pair of straight portions 133, so that both side ends are located at the straight portion 133, respectively, and the pair of straight portions 133 are orthogonal to each other. It may be disposed at an eccentric position that is out of alignment with the transverse central axis (X). In this case, the magnet 180 may be disposed on one of the pair of straight parts 133. In addition, as described above, when the damper 132 has an asymmetrical structure in which one straight portion 133a of the pair of straight portions 133 has a longer length than the other straight portion 133b, the magnet 180 ) is disposed on the straight part 133a on one side having a longer length, and the rotating shaft 131 and the magnet 180 can 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 (i.e., the separation distance between the magnet 180 and the reed switch 190 in the open state (vertical state) of the opening/closing means 130), Detection accuracy can be improved.

In addition, the magnet 180 and the reed switch 190 may be mounted on the damper 132 and the body 110 in various ways. Specifically, referring to FIGS. 10A and 10B, a magnet receiving groove 135 open in the lateral direction is formed at the edge of the damper 132 adjacent to the motor 140 and spaced apart from the rotating shaft 131, and the magnet ( 180) is accommodated in the magnet receiving groove 132, and on one side of the body 110, the fixing groove 111 to which the motor 140 is fixed and the covering wall 115 protrude along the circumference of the fixing groove 111 It is formed and provided to surround the fixing groove 111, and the cover 116 is fastened to be opened and closed at the open top of the screen wall 115, and the reed switch 190 is a magnet 180 in the fixing groove 111 It can be mounted on the part corresponding to . Here, a support step supporting at least one of upper and lower portions of the reed switch 190 is formed in the fixing groove 111, and the reed switch 190 is connected to the combination of the truss bolter 200 and the fixing groove 111. can be mounted against the fixing groove, and specifically, as the truss bolter 200 is coupled to the fixing groove 111, the reed switch 190 is connected to the head of the truss bolter 200 and the fixing groove 111 It can be installed with conflict between them. Through the above-described structure, one side of the magnet 180 is exposed by the open opening of the magnet receiving groove 132 while being accommodated in the magnet receiving groove 132 of the damper 132, so that the opening and closing means 130 is closed. Mounted in the fixing groove 11 of the body 110 when rotated between a state (that is, the horizontal state of the above-mentioned opening and closing means 130) and an open state (that is, the vertical state of the above-mentioned opening and closing means 130) The reed switch 190 may be turned on or off by moving closer or farther from 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 (ie, the above-described vertical state of the opening/closing means 130) to a closed state (ie, the aforementioned opening/closing means 130). (130) in the horizontal state) due to a malfunction in the rotation process, if it is not in a completely closed state (ie, not in a completely horizontal state), the reed switch 190 is positioned within a certain distance range of the magnet 180 Since it is turned on and outputs a corresponding signal (eg, malfunction signal, light emission signal, alarm signal, etc.), it is possible to effectively secure maintenance by confirming malfunction in time. 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 proximity of the reed switch 190 to the magnet 180 can be detected. can be implemented as

In another embodiment, the magnet 180 is disposed on the edge of the damper 132 spaced apart from the rotating shaft 131, and the reed switch 190 is in the open state of the opening and closing means 130 (ie, the above-described opening and closing means ( 130) is disposed on the side of the body 110 corresponding to the magnet 180 in the vertical state), the reed switch 190 depends on whether or not the magnet 180 rotating according to the rotation of the rotating shaft 131 is approaching. It can 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, the number of reed switches 190 may be plural, such as two. Therefore, it is possible to accurately detect the open state (i.e., vertical state), closed state (i.e., horizontal state), or the opening angle between the open and closed states of the opening and closing means 130, so that the opening and closing means 130 operates normally. operation can be ensured effectively.

In addition, the electric diffuser receives the detection signal of the detection sensor (for example, a malfunction signal, a light emitting signal, or an alarm signal generated depending on whether the reed switch 190 is close to the magnet 180), and the motor ( 140) may further include a control panel 210 for controlling the operation. 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 the opening/closing means 130 from an open state to a closed state, when the opening/closing means 130 is not in a correct closed state (ie, a horizontal state) Since the magnet 180 is not positioned within a certain distance range, the reed switch 190 is turned on and transmits a detection signal to the control panel 210, whereby 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 embodiment, the second embodiment, and the third embodiment of the present invention, cost reduction and management convenience can be improved by reducing the number of parts and the number of molds manufactured by sharing parts. there is.

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

100-1, 100-2: Electric diffuser
110: body 111: fixing groove
112: motor shaft through hole 113: fastening boss
114: stopper 115: screen wall
116: cover 117: coupling groove
118: housing 119: rotation shaft support
120: cover 121: cover body
121a: opening 122: protruding extension
123: guide tool 124: support member
125: coupling protrusion 126: fixed rib
130: opening and closing means 131: rotation shaft
132: damper 133: straight part
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 an air flow path of a ventilation system through which air passes through the body;
an opening/closing means driven to adjust a cross-sectional area of an air passage inside the body;
a motor driving the opening/closing means; and
a cover coupled to the body and fixed to an indoor ceiling in which a mounting hole is formed to discharge air passing through the body into the room;
Including,
The opening/closing means is coupled to the motor shaft of the motor and passes through the inside of the body and is disposed perpendicular to the air induction direction, and a damper that rotates around the rotation shaft to adjust the cross-sectional area of the air passage inside the body. including,
The damper includes a pair of straight parts disposed parallel to each other and a pair of curved parts connecting both ends of the pair of straight parts,
The rotating shaft is disposed at an eccentric position that is out of alignment with the central axis crossing the center of the damper, and is disposed perpendicular to the pair of straight parts, so that both side ends are respectively located on the straight part,
The damper is an electric diffuser, characterized in that one side of the damper having a curved part having a short vertical distance from the rotational axis among the pair of curved parts is configured to rotate toward the cover around the rotational axis. According to claim 1,
The damper is a motorized diffuser, characterized in that the area of the left side and the area of the right side are different from each other with respect to the rotation axis. delete According to claim 1,
The electric diffuser, characterized in that the ratio between the vertical distance from the rotating shaft to the left curved part and the vertical distance to the right curved part is 9:11 to 7:13. According to claim 1,
The damper has an asymmetric structure in which one straight line part of the pair of straight parts has a longer length than the other straight part, and the pair of curved parts have a symmetrical structure with respect to the central axis Electricity, characterized in that diffuser. According to claim 1,
The cover includes a cover body having an opening in the center and a protruding extension extending upward from an edge of the opening and inserted into and coupled to an inner surface of the lower end of the body,
A motorized diffuser, characterized in that a plurality of coupling protrusions are formed on the outer surface of the protruding extension portion and arranged along the circumference of the protruding extension portion. According to claim 6,
At the lower end of the body, a plurality of coupling grooves into which the coupling protrusions are inserted and fixed are formed,
The coupling groove has a structure cut in an 'L' shape including a vertical portion extending upward from the lower end of the body and a horizontal portion extending horizontally from an end of the vertical portion, and the coupling protrusion is formed in the horizontal portion. A locking jaw is formed to prevent departure to the vertical portion,
An electric diffuser, characterized in that a reinforcing rib for reinforcing mechanical strength protrudes from a portion of the lower outer surface of the body that is cut and forms the side surface of the vertical part and the lower surface of the horizontal part. According to claim 6,
At the inner center of the protruding extension portion, a guide sphere penetrating in the vertical direction and a plurality of support members radially arranged to connect the outer surface of the guide sphere and the inner surface of the protruding extension portion are provided,
A door for spreading the air passing through the cover in a lateral direction is disposed on the lower side of the cover, and a protrusion protruding upward is provided at the center of an upper surface of the door, and the protrusion is inserted into the guide to open the door. Electric diffuser, characterized in that detachably coupled to the cover. According to claim 8,
The door is opened in a vertical direction to form a through hole through which the air passes, and a support protruding part is provided at the center of the through hole to cross 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 controlling the direction in which the direction of the through-hole extends obliquely to the inner surface of the through-hole in a curved line. According to claim 8,
A second screw thread is formed on an outer surface of the protrusion, and a first screw thread screwed with the second screw thread of the protrusion is formed on an inner surface of the guide member.
The electric diffuser, characterized in that the door is moved in the vertical direction through rotation in a state in which the second screw thread is screwed with the first screw thread. According to claim 6,
The cover protrudes upward from the cover body and has a plurality of fixing ribs radially extending from the edge of the opening,
The fixing rib is a horizontal part trimmed in a stepped structure and disposed adjacent to the edge of the cover body, and a vertical part disposed adjacent to the edge of the opening and protruding upward more than the horizontal part to fit into the mounting hole of the indoor ceiling. contains parts,
A size of a diameter of an imaginary 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 the diameter of the mounting hole. According to claim 1,
The body has at least one housing on an outer surface that is open toward the top,
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 to the housing. According to claim 12,
The cover fixing member includes a body inserted and accommodated 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 a lower surface that penetrate the bottom surface of the housing and are fixed, and have connecting pins on opposite sides, and the torsion spring is axially coupled to the connecting pin so that the body is An electric diffuser characterized in that it presses the upper surface of the ceiling by elasticity while being inserted into the mounting hole and disposed inside the ceiling. According to claim 13,
The electric diffuser, characterized in that the front surface of the housing is provided with a groove through which the torsion spring passes is cut from an upper end toward the bottom surface. According to 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 at a position corresponding to a fastener provided in the motor in the fixing groove, and is fastened to the fastening boss through the fastener The electric diffuser, characterized in that the motor is fixedly supported in the fixing groove by the fastening means. According to claim 15,
A cover wall protrudes along the circumference of the fixing groove on one side of the body and is provided to surround the fixing groove, and a cover is fastened to be opened and closed at an open top of the cover wall. According to 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/closing means. According to 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 where the motor shaft through-hole is formed. According to claim 1,
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 depending on whether or not it is close to the magnet, thereby controlling the opening/closing means. An electric diffuser characterized in that it detects opening and closing. According to claim 19,
The magnet is disposed at an edge of the damper spaced apart from the rotating 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, so that the rotation of the damper causes An electric diffuser characterized in that it is turned on / off depending on proximity.

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