Ventilator

Abstract

The present invention relates to a ventilation fan comprising: a housing formed in a rectangular shape and having an internal receiving space; a cover frame installed by being fitted toward an opening of the housing; a cover formed in a square plate shape and installed to cover the outer surface of the cover frame; a motor installed on one side of the interior of the housing to generate a driving force for circulating air; and a sliding door installed on one side of the cover frame to open and close the interior of the housing.

Description

Technology Field

[0001] The present invention relates to a device for circulating air inside a bathroom or toilet. Background Technology

[0002] A ventilation fan is installed in a bathroom or restroom (hereinafter referred to as a bathroom) of a residential or commercial building and serves to expel humid air or odors from the inside to the outside through air circulation within the bathroom. The ventilation fan is mainly installed on the ceiling or wall of the bathroom and can draw in air using the negative pressure (suction force) generated by the rotation of a rotating fan mounted inside, and then expel it to the outside of the building through a duct. The ventilation fan can lower the humidity inside the bathroom by raising the temperature of the air inside and supplying it into the bathroom.

[0003] Conventional ventilation fans have a vent that is always open to discharge air into the bathroom, which can cause humid air from the bathroom to enter the fan through the vent, potentially leading to mold growth or hygiene issues. Additionally, the structure makes it difficult to fully open the vent, resulting in uneven air supply or merely performing the function of blowing air, making it difficult to efficiently raise the temperature and reduce humidity inside the bathroom. Prior art literature

[0004] KR Published Patent No. 10-2019-0019324 (Published on Feb. 22, 2021) The problem to be solved

[0005] One objective of the present invention is to propose a ventilation fan structure capable of performing various functions, such as circulating air within a bathroom or controlling humidity, and capable of supplying air uniformly toward the interior of the bathroom, thereby creating a more comfortable environment within the bathroom.

[0006] Another objective of the present invention is to propose a structure for a ventilation fan that is relatively simple in internal structure, making it easy for the user to manage, such as maintenance. means of solving the problem

[0007] To achieve one objective of the present invention, a ventilation fan according to one example of the present invention comprises: a housing formed in the shape of a rectangular parallelepiped with one side open and having an internal receiving space; a cover frame installed by being fitted toward the opening of the housing; a cover formed in the shape of a square plate and installed to cover the outer surface of the cover frame; a motor installed on one side of the interior of the housing to form a driving force for flowing air; and a sliding door installed on one side of the cover frame to open and close the interior of the housing, wherein the sliding door can slide along the cover frame to open the interior of the housing and discharge air introduced into the housing toward the interior of the bathroom.

[0008] According to one example of the present invention, the motor may include: a motor case installed inside the housing; an impeller installed inside the motor case to generate a suction force for forming air flow; and blades installed radially along the outside of the impeller to determine the direction of movement of the air flowing by the impeller.

[0009] According to one example of the present invention, a branch port is installed on one side of the housing in communication with the outside to allow air to flow in from the outside, and an exhaust port is installed on the other side in communication with the outside to discharge air flowing along the interior of the housing to the outside, and air introduced into the interior of the housing through the space spaced apart from each other between the branch port, the housing, and the cover can be supplied into the bathroom by opening the sliding door.

[0010] According to one example of the present invention, an intake port is formed between the housing and the cover at a certain distance from each other to allow air from inside the bathroom to enter, and the air introduced through the intake port can flow inside the housing and be supplied into the bathroom by opening the sliding door.

[0011] According to one example of the present invention, the sliding door may include: a door plate installed to cover at least a portion of the housing and to open and close the interior of the housing; a blower frame formed in the shape of a rectangular parallelepiped with an open center, installed on the inner surface of the cover frame, and communicating the interior of the housing with the interior of the bathroom so that air inside the housing is discharged toward the bathroom; a blower guide formed in the shape of a rectangular plate extending in one direction, installed on the inner side of the blower frame, and forming the direction of air flow moving toward the bathroom; and a sliding door driving unit installed on one side of the cover frame and providing driving force for bidirectional movement by sliding the door plate and movement of the blower guide.

[0012] According to one example of the present invention, a sliding door drive unit may include: a sliding rail that is fixedly installed along one direction on each side of the inner surface of the cover frame and guides the movement of the door plate; a rack installed between the sliding rails and installed to be coupled with the door plate; a pinion gear connected to the rack and a drive motor that provides the driving force of the pinion gear to form bidirectional movement of the rack.

[0013] According to one example of the present invention, a plurality of air guides may be installed at regular intervals along the inner surface of the air outlet frame. Effects of the invention

[0014] To achieve one objective of the present invention, a ventilation fan having the above-described structure can create a pleasant environment inside the bathroom by allowing cold and humid air from inside the bathroom to be drawn in through the intake port of the ventilation fan, then flowing inside the ventilation fan and being discharged to the outside through the exhaust port, or being heated by a heater and becoming high-temperature and dry, and then being discharged into the bathroom through an open sliding door.

[0015] Furthermore, the hot, dry air discharged through the open sliding door of the ventilation fan is supplied into the bathroom at various angles and directions in response to the movement of the air guide, thereby enabling more efficient dehumidification. Additionally, the ventilation fan can perform ventilation, dehumidification, heating, and drying functions through user operation, allowing for the creation of a desired bathroom environment tailored to the user's preferences.

[0016] In addition, since the internal structure of the ventilation fan is relatively simple, when the user opens the cover, the components installed inside the housing can be easily checked, allowing for smooth repair and replacement of parts, thereby providing convenience. Brief explanation of the drawing

[0017] FIG. 1 is a perspective view showing the appearance of a ventilation fan according to the present embodiment. FIG. 2 is a perspective view showing the appearance when the sliding door of the ventilation fan of FIG. 1 is moved and the air outlet is opened. FIG. 3 is a perspective view showing the interior of a ventilation fan according to the present embodiment when the cover frame and the cover are each removed. Figure 4 shows a cross-sectional view of the ventilation fan of Figure 1 cut in the left-right direction. Figure 5 is a conceptual diagram showing the appearance of the cover frame when viewed from below. Figure 6 is a conceptual diagram showing the appearance of the cover frame when viewed from above. Figure 7 is a conceptual diagram showing the appearance of a cover frame that allows a sliding door to move. FIG. 8a is a conceptual diagram showing the appearance when the sliding door closes the air vent. FIG. 8b is a conceptual diagram showing the appearance when the sliding door moves and the air vent is opened. Specific details for implementing the invention

[0018] Hereinafter, a ventilation fan related to the present invention will be described in more detail with reference to the drawings.

[0019] In this specification, identical or similar reference numbers are assigned to identical or similar configurations even in different embodiments, and redundant descriptions thereof are omitted.

[0020] In addition, even if the embodiments are different, as long as there is no structural or functional contradiction, the structure applied to one embodiment can be applied identically to another embodiment.

[0021] Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0022] In describing the embodiments disclosed in this specification, if it is determined that a detailed description of related prior art could obscure the essence of the embodiments disclosed in this specification, such detailed description is omitted.

[0023] The attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings; it should be understood that all modifications, equivalents, and substitutions included within the concept and technical scope of the present invention are included.

[0024] In the following detailed description of the invention, "front" or "front part" may be understood to mean the left side of the drawing, and "rear" or "rear part" may be understood to mean the right side of the drawing. Additionally, "upper" or "upper side" may be understood to mean the upper part of the vertical direction in the drawing, and "lower" or "lower side" may be understood to mean the lower part of the vertical direction in the drawing.

[0025] FIG. 1 is a perspective view showing the appearance of a ventilation fan (100) according to the present embodiment, and FIG. 2 is a perspective view showing the appearance when the air outlet (114) is opened by the movement of the sliding door (140) of the ventilation fan (100) of FIG. 1. FIG. 3 is a perspective view showing the interior appearance of the ventilation fan (100) when the cover frame (120) and the cover (130) of the ventilation fan (100) according to the present embodiment are removed.

[0026] The ventilation fan (100) according to the present embodiment serves to circulate air by sucking in air inside the bathroom and discharging it to the outside, or by heating it and supplying it to the bathroom. It may include a housing (110) mounted on the ceiling or wall of the bathroom, a cover frame (120) coupled to the housing (110) to fix various configurations, a cover (130) to restrict the external exposure of the housing (110), and a sliding door (140) that selectively opens and closes the interior of the housing (110) to allow high-temperature air to be discharged into the bathroom.

[0027] A branch port (112) and an exhaust port (113) may be installed together on one side of the housing (110). After the housing (110) is seated on the inside of a ceiling or wall surface with the branch port (112) and the exhaust port (113) combined, it may be fixedly installed on the inner wall of a building, etc., to support the load using screws, etc.

[0028] When the ventilation fan (100) is installed embedded in the ceiling or wall, the branch outlet (112) and exhaust outlet (113) are connected to a duct installed to pass through the inside of the ceiling or wall while located inside the ceiling or wall, thereby allowing air flow to occur.

[0029] The cover frame (120) is installed in conjunction with the opening of the housing (110) and serves to stably support the configuration installed in the internal space (S) of the housing (110) while restricting it from moving outward due to gravity. On one side of the cover frame (120), a ventilation frame (151) for forming a ventilation opening (114) and a configuration for forming the movement of the sliding door (140) may be installed.

[0030] The cover (130) serves to cover the cover frame (120). When the cover (130) is attached to the cover frame (120), it becomes exposed to the outside when the ventilation fan (100) is installed embedded in the ceiling or wall. A sliding door (140), a deodorizer attachment / detachment (170), and an operating unit (180) may be located on one side of the cover (130).

[0031] A certain space may be formed inside the housing (110). In the internal space (S) of the housing (110), a motor (160) for circulating air, a heater (182) for heating the air introduced into the housing (110), and an operating unit (180) for controlling and operating the ventilation fan (100) may be installed.

[0032] Air can be introduced from the outside into the internal space (S) formed in the housing (110). Air can be introduced into the housing (110) through a branch port (112) connected to the external space, or air can be introduced from the bathroom through an intake port (A) connected to the inside of the bathroom.

[0033] The ventilation fan (100) serves as an air circulation device that heats air introduced from the bathroom and supplies it back into the bathroom. After cold and humid air from inside the bathroom is introduced into the interior through the intake port (A) of the ventilation fan (100), it flows inside the ventilation fan (100) and is discharged to the outside through the exhaust port (113), or high-temperature dry air heated by the heater (182) can be discharged into the bathroom through the opening of the sliding door (140).

[0034] As shown in FIG. 2, the hot, dry air discharged through the open sliding door (140) of the ventilation fan (100) is supplied into the bathroom at various angles and directions in response to the movement of the blower guide (150), thereby performing the dehumidification function inside the bathroom more efficiently and making the environment inside the bathroom more pleasant.

[0035] In addition, the user can perform ventilation, dehumidification, heating, and drying functions by operating the ventilation fan (100), thereby making it possible to create the condition inside the bathroom according to the user's preferences.

[0036] Below, we will examine the individual components of the ventilation fan (100).

[0037] FIG. 4 shows a cross-sectional view of the ventilation fan (100) of FIG. 1 cut in the left-right direction. FIG. 5 shows the cover frame (120) when viewed from below, and FIG. 6 shows the cover frame (120) when viewed from above. Also, FIG. 7 shows the cover frame (120) capable of moving the sliding door (140).

[0038] Housing (110)

[0039] The housing (110) is formed in the shape of a rectangular prism with one side open and can be fixedly installed on the ceiling or wall of a bathroom. The housing (110) can be fixed to support the load after being mounted on the ceiling or wall so that the opening faces the interior of the bathroom. As seen in FIG. 1, when the lower part of the housing (110) is mounted on the ceiling or wall inside the bathroom, the opening of the housing (110) will be positioned to face the interior of the bathroom.

[0040] A certain space may be formed inside the housing (110). In the internal space (S) of the housing (110), air flow may occur, and a motor (160) for moving air and forming an air passage, a heater (182) for heating to increase the temperature of the air introduced into the housing (110), and an operating unit (180) for controlling and operating the ventilation fan (100) may be installed. Additionally, an LED lamp (812) may be installed inside the housing (110) above the motor (160) so that the user can check whether the ventilation fan (100) is operating through a light-emitting element.

[0041] A branch port (112) is installed on one side of the housing (110) so that air may be drawn in from the outside (or from another bathroom ventilation port) or from the bathroom through an intake port (A) that is connected to the inside of the bathroom. The branch port (112) may be formed in the shape of a pipe having a constant diameter and may be installed by connecting it to one side of the housing (110). The branch port (112) is connected to an external space, etc., to allow air to be drawn in, and air may be drawn in such a way that negative pressure is formed by the impeller (162).

[0042] An exhaust port (113) is installed on the other side of the housing (110) so that air introduced into the housing (110) can be discharged. The exhaust port (113) is formed in the shape of a tube having a constant diameter and can be installed by connecting it to one side of the housing (110). The exhaust port (113) serves to discharge air inside the bathroom toward the outside.

[0043] An exhaust port damper (113a) may be installed inside the exhaust port (113). The exhaust port damper (113a) may restrict the movement of air in the exhaust port (113) and may be, for example, a dual plate check valve. The exhaust port damper (113a) allows air to move toward the external space through the exhaust port (113) and prevents air from entering the housing (110) from the external space. However, the exhaust port damper (113a) is opened restrictively only when the internal pressure of the housing (110) increases, allowing air to enter from the external space.

[0044] The exhaust port (113) and the intake port (A) may be formed in the shape of a pipe and may be installed on different sides of the housing (110). The exhaust port (113) and the intake port (A) may be installed such that their extended directions intersect each other.

[0045] A cover frame mounting portion (111) formed to be bent in one direction may be formed on the outer surface of the opening of the housing (110). The cover frame mounting portion (111) acts as a flange that allows the cover frame (120) to be seated toward the housing (110) and joined together by contacting each other. The bottom surface of the cover frame (120) may be positioned to contact the cover frame mounting portion (111) and then joined together through screw fastening, etc.

[0046] Cover frame (120)

[0047] The cover frame (120) is formed in the shape of a rectangular plate and is installed by being coupled toward the opening of the housing (110), and serves to stably support the configuration installed in the internal space (S) of the housing (110) while restricting it from moving outward.

[0048] The cover frame (120) can be installed in conjunction with the housing (110) while in contact with the cover frame mounting portion (111) formed in the housing (110). For example, the cover frame (120) can be installed in conjunction by being fitted into the cover frame mounting portion (111) formed in the opening of the housing (110).

[0049] On one side of the cover frame (120), a door plate (141), a sliding rail (143), and a rack (144) of the sliding door (140) may be installed at the part where the cover (130) is joined, and an internal configuration forming an operating part (180) may be located.

[0050] On the other side of the cover frame (120), a ventilation frame (151) for forming a ventilation opening (114) and a driving motor (146) and a driving motor case (146a) for forming the movement of the sliding door (140) may be installed.

[0051] A recessed surface (124) may be formed on the perimeter of one side of the cover frame (120) to be recessed to a certain depth. The recessed surface (124) is formed in a certain curved shape so that when the cover (130) is mounted, it is spaced apart from the cover (130) by a certain distance or becomes lifted, thereby forming an intake port (A) through which air can be introduced, so that air can be introduced from inside the bathroom.

[0052] The outer side of the bottom portion of the cover frame (120) may have a housing coupling portion (121) formed protruding so as to be fitted into the housing (110).

[0053] An exposed portion (122) with a plurality of holes is formed in the center of the cover frame (120), thereby reducing the weight of the cover frame (120) while making it possible for the user to easily check the configuration housed inside the housing (110).

[0054] A gripping portion (123) for connection with the housing (110) is formed on the outer side so that it can be fixed to the housing (110).

[0055] Cover (130)

[0056] The cover (130) is formed in the shape of a square plate and can be installed to cover the outer surface of the cover frame (120). The cover (130) is installed to cover the opening of the housing (110) and serves to restrict the internal space (S) of the housing (110) from being exposed to the outside. The cover (130) can be installed facing one side of the opening of the housing (110). The cover (130) can open or close the internal space (S) of the housing (110).

[0057] When the cover (130) is removed from the housing (110) and the internal space (S) is opened, the user can check the configuration installed inside the housing (110). When the cover (130) is installed to cover the housing (110) and the internal space (S) is closed, the cover (130) restricts the internal space (S) of the housing (110) from being exposed to the outside, so it is relatively free from moisture or contaminants inside the bathroom, and since only the outer surface of the cover (130) is exposed to the outside, the appearance looks neat and the aesthetics can be improved.

[0058] An intake port is formed between the housing (110) and the cover (130) at a certain distance from each other to allow air from inside the bathroom to enter, and the air introduced through the intake port flows inside the housing (110) and can then be supplied into the bathroom by opening the sliding door (140).

[0059] Sliding door (140)

[0060] The sliding door (140) is installed on one side of the cover frame (120) and serves to open and close the interior of the housing (110) while discharging air that has entered the interior of the housing (110) through the air outlet (114).

[0061] The sliding door (140) may include a door plate (141), a blower frame (151), a blower guide (150), and a sliding door drive unit (142).

[0062] The door plate (141) is formed in the shape of a square plate and is installed to cover at least a part of the housing (110), and serves to open and close the interior of the housing (110). The door plate (141) slides in one direction by the sliding door drive unit (142) and serves to open or close the air outlet (114).

[0063] A door plate connecting shaft (141b) is formed protrudingly on one side of the door plate (141) and can be inserted and mounted into a connecting shaft mounting portion (144a) formed on the rack (144). Multiple door plate connecting shafts (141b) may be formed at different locations on the door plate (141), and the door plate (141) can slide according to the movement of the rack (144).

[0064] When the door plate (141) slides along the rack (144), the door plate (141) slides toward the interior of the housing (110) so that the air outlet (114) can be opened without being exposed to the outside.

[0065] As seen in FIG. 7, when observing the movement of the door plate (141), the door plate connecting shaft (141b) connecting the door plate (141) and the rack (144) is mounted with one side inserted into the connecting shaft mounting part (144a) formed on the rack (144), while the other side is seated on the sliding rail (143). Since the sliding rail (143) is not perfectly horizontal but has one end curved upward, the door plate connecting shaft (141b) slides downward along the sliding rail (143) by a certain distance.

[0066] The connecting shaft mounting portion (144a) formed in the rack (144) into which the door plate connecting shaft (141b) is inserted is formed in the shape of a diagonally long hole, so that the door plate connecting shaft (141b) can move downward by a certain distance along the sliding rail (143).

[0067] Additionally, the door plate moving guide (141a) is installed on both sides of the door plate (141) so that the door plate (141) connected to the rack (144) can slide more smoothly relative to the cover frame (120).

[0068] The air outlet frame (151) is formed in the shape of a rectangular prism with an open center and is installed on the inner side of the cover frame (120), and forms an air outlet (114) that communicates the interior of the housing (110) with the interior of the bathroom so that air inside the housing (110) is discharged toward the bathroom. The door plate can open or close the air outlet (114) by sliding.

[0069] The sliding door (140) can be moved by the sliding door drive unit (142).

[0070] The sliding door drive unit (142) is installed on one side of the cover frame (120) to form movement in both directions by sliding the door plate (141). Additionally, the sliding door drive unit (142) can also provide driving force to form movement of the air blower guide (150).

[0071] The sliding door drive unit (142) may include a sliding rail (143), a rack (144), a pinion gear (145), and a drive motor (146).

[0072] The sliding rails (143) are fixedly installed along one direction on both sides of the inner surface of the cover frame (120) and serve to guide the movement of the door plate (141). Two sliding rails (143) can be installed facing each other with a rack (144) in between.

[0073] The sliding rail (143) can be formed so that one end is bent upward. Accordingly, when the door plate connecting shaft (141b) of the door plate (141) slides along the rack (144), the door plate (141) moves toward the interior of the housing (110), allowing the air outlet (114) to be opened without being exposed to the outside.

[0074] The rack (144) and pinion gear (145) are mechanical parts used to convert rotational motion into linear motion or linear motion into rotational motion, and serve to form the sliding of the door plate (141).

[0075] The rack (144) can be formed such that a plurality of teeth or grooves are formed at regular intervals on a straight bar. The rack (144) is installed between the sliding rails (143) and is installed to be coupled with the door plate (141) so as to enable movement of the door plate (141).

[0076] Since the door plate connecting shaft (141b) is inserted and mounted in the connecting shaft mounting portion (144a) formed in the rack (144), the door plate (141) can slide according to the movement of the rack (144).

[0077] The pinion gear (145) is formed in a cylindrical gear shape and operates by meshing with the rack (144) to transmit rotational force from the drive motor (160). The pinion gear (145) is connected to the rack (144) to enable movement of the rack (144). The drive motor (146) causes the pinion gear (145) to rotate in one direction, thereby enabling movement of the rack (144) in both directions. In this case, the door plate (141) coupled to the rack (144) will be able to move according to the movement of the rack (144).

[0078] Blower guide (150)

[0079] The air guide (150) is formed in the shape of a square plate extending in one direction and is installed inside the air outlet frame (151), serving to form the direction of air flow moving toward the bathroom. The air guide (150) may be composed of multiple members, and each air guide (150) may be connected to one another by a connecting member, thereby enabling simultaneous movement to the left or right. That is, the air guide (150) can rotate to the left or right while the air outlet (114) is open, thereby varying the direction of movement of the air supplied into the bathroom.

[0080] Motor (160)

[0081] The motor (160) is installed inside the housing (110) and serves to generate a driving force to form an airflow.

[0082] The motor (160) may include a motor case (161), an impeller (162), and a blade (163).

[0083] The motor case (161) is installed inside the housing (110), and an impeller (162) can be mounted inside. The motor case (161) serves to form a passage so that air sucked in by the driving of the impeller (162) can move.

[0084] Additionally, as shown in FIG. 4, a main body damper (161a) may be installed on one side of the interior of the motor case (161). The main body damper (161a) is installed in a direction that crosses the interior of the motor case (161) and can open or close the air passage by rotating downward or upward relative to a fixed side.

[0085] The main body damper (161a) is positioned between the air outlet (114) and the exhaust port (113), and can flow air inside the housing (110) toward the air outlet (114) or toward the exhaust port (113). For example, when the main body damper (161a) performs the action of closing the exhaust port (113) by rising or lifting relative to one side where it is fixed, the air introduced into the housing (110) through the intake port (A) or branch port (112) is heated by the heater (182), and can be supplied toward the inside of the bathroom through the air outlet (114) in a state where the temperature is raised and the relative humidity is lowered.

[0086] Additionally, when the main body damper (161a) performs the operation of opening the exhaust port (113) while descending or going down relative to one side where it is fixed, the air that has entered the housing (110) through the intake port (A) or branch port (112) can be discharged to the outside through the exhaust port (113) rather than into the bathroom.

[0087] The impeller (162) is installed inside the motor case (161) and serves to generate pressure for forming air flow. Generally, the impeller (162) increases the pressure and flow of the fluid through rotating blades, and uses centrifugal force to impart kinetic energy to the fluid and convert it into pressure energy to move the fluid.

[0088] In this embodiment, the impeller (162) serves to form pressure to draw air from the bathroom into the interior of the housing (110). The air drawn into the interior of the housing (110) by the operation of the impeller (162) can travel along the motor case (161) along the flow path formed by a plurality of blades installed radially around the impeller (162).

[0089] A plurality of blades are installed radially on the outer side of the impeller (162) and serve to form the direction of movement of the air flowing through the impeller (162).

[0090] Deodorizer detachment part (170)

[0091] The deodorizer attachment part (170) is installed on one side of the cover (130), and a deodorizing pad or a deodorizing filter may be installed on the inside of the deodorizer attachment part (170). In this case, when air circulation is performed by the ventilation fan (100), it will be possible to remove pollutants and odors in the air. Considering the humid environment inside the bathroom, the deodorizing pad or deodorizing filter may use an activated carbon filter or a HEPA filter that is difficult for bacteria to multiply.

[0092] Control unit (180)

[0093] The ventilation fan (100) according to the present embodiment may include an operating unit (180). The operating unit (180) may consist of a plurality of physical buttons installed along the outer surface of the cover (130) or touch buttons. The operating unit (180) may refer to a part of the outer surface of the cover (130), and button operation may be implemented by receiving power from a power supply unit (not shown) installed on one side of the ventilation fan (100).

[0094] Since the user can perform ventilation, dehumidification, heating, and drying functions respectively by operating the ventilation fan (100), the user can create a desired bathroom environment by taking into account their preferences.

[0095] FIG. 8a is a conceptual diagram showing the appearance when the sliding door (140) closes the air outlet (114), and FIG. 8b is a conceptual diagram showing the appearance when the sliding door (140) moves and the air outlet (114) is opened.

[0096] A vent (114) is formed to connect the interior of the housing (110) with the interior of the bathroom so that air inside the housing (110) is discharged toward the bathroom, and a door plate (141) can be positioned to cover the vent (114) or positioned inside the housing (110) to form the opening and closing of the vent (114).

[0097] When the door plate connecting shaft (141b) of the door plate (141) is inserted at one end into the connecting shaft mounting part (144a) formed on the rack (144) and mounted at the other end on the sliding rail (143), and the pinion gear (145) is rotated by the drive motor (146), movement of the rack (144) can be formed. At this time, the drive motor (146) can form movement of the door plate (141) in both directions by rotating the pinion gear (145) in different directions.

[0098] For example, when the rack (144) moves to the left by the pinion gear (145) driven by the drive motor (146), the door plate (141) moves to the left along the rack (144) and slides toward the interior of the housing (110) to open the air outlet (114). Additionally, when the pinion gear (145) driven by the drive motor (146) rotates in the other direction and the rack (144) moves to the right, the door plate (141) moves to the right along the rack (144) and slides, so that the door plate (141) closes the air outlet (114) so ​​that it is not exposed to the outside.

[0099] In the following, regarding the performance of functions according to the operation of the ventilation fan (100) according to the present embodiment, the ventilation fan (100) can perform ventilation, dehumidification, heating, and drying functions respectively through user operation, thereby enabling the creation of a desired bathroom environment by taking into account the user's preferences.

[0100] The ventilation function refers to a general operation mode for ventilation within the bathroom. It is linked to the light switch in the bathroom, so that when the light switch is turned on, the ventilation fan (100) can perform a ventilation operation for air circulation in response. The ventilation function draws air from the bathroom into the housing (110) through the intake port (A) by the operation of the motor (160). The main body damper (161a) installed inside the motor housing (110) descends relative to a fixed side, opening the air passage so that air moves toward the exhaust port (113). At this time, since the exhaust port damper (113a) does not restrict the movement of air to the outside through the exhaust port (113), humid or cold air inside the bathroom can be smoothly discharged to the outside.

[0101] The dehumidification function means that when the main body damper (161a) is open, some of the air introduced from inside the bathroom toward the housing (110) through the intake port (A) is discharged to the outside through the exhaust port (113), and some is discharged into the bathroom through the air blower (114) when the sliding door (140) is opened. At this time, the air discharged through the open sliding door (140) of the ventilation fan (100) is supplied into the bathroom at various angles and directions in response to the movement of the air blower guide (150), thereby allowing the dehumidification function inside the bathroom to be performed more efficiently.

[0102] The heater function means that when the main body damper (161a) is closed, air flowing in from inside the bathroom toward the housing (110) through the intake port (A) is heated by the operation of the heater (182) to become high-temperature, dry air, and the sliding door (140) is opened and discharged into the bathroom through the air outlet (114).

[0103] The heater (182) is installed on one side of the interior of the housing (110) to heat the incoming air, and is configured to raise the temperature of the air before the air is discharged through the air outlet (114). The heater (182) is installed at a height between the motor (160) case and the air outlet (114) so ​​as to heat the air moving from the motor (160) case toward the air outlet (114).

[0104] At this time, the hot, dry air discharged through the open sliding door (140) of the ventilation fan (100) is supplied into the bathroom at various angles and directions in response to the movement of the blower guide (150), thereby enabling the heater function inside the bathroom to be performed more efficiently.

[0105] The drying function, also known as the drying function, refers to the operation of drawing air from inside the bathroom into the housing (110) through the intake port (A) while the main body damper (161a) is closed, heating the drawn-in air using the heater (182), and then discharging it into the bathroom through the air outlet (114) as the sliding door (140) opens. At this time, the drying function is set to have a driving force of the motor (160) that is more than twice that of the heater function, and by increasing the flow rate of air discharged into the bathroom, more efficient drying of the bathroom is possible. In addition, the high-temperature dry air discharged through the open sliding door (140) of the ventilation fan (100) is supplied into the bathroom at various angles and directions in response to the movement of the air guide (150), thereby allowing the drying function inside the bathroom to be performed more efficiently.

[0106] The above description is merely an example of an embodiment for implementing a ventilation fan according to the present invention. The present invention is not limited to the above examples, and the technical concept of the present invention extends to the scope where any person with ordinary knowledge in the field to which the invention belongs can make various modifications without departing from the essence of the invention as claimed in the following claims. Explanation of the symbols

[0107] A: Air intake S: Interior space 100: Ventilation fan 110: Housing 111: Cover frame mounting part 111a: Screw fastening part 112: Branch 113: Exhaust pipe 113a: Exhaust damper 114: Air vent 120: Cover Frame 121: Housing joint 122: Exposed section with multiple holes formed 123: Pajibu 124: Lease tax 130: Cover 140: Sliding door 141: Door plate 141a: Door Plate Movement Guide 141b: Door plate connecting shaft 142: Sliding door drive unit 143: Sliding Rail 144: Rack 144a: Connecting shaft mounting part 145: Pinion gear 146: Drive motor 146a: Drive motor case 150: Blower Guide 151: Air vent frame 160: Motor 161: Motor case 161a: Main body damper 162: Impeller 163: Blade 170: Deodorizer detachment part 180: Control panel 181: LED 182: Heater

Claims

Claim 1 A housing formed in the shape of a rectangular parallelepiped with one side open and having an internal receiving space; a cover frame fitted and installed toward the housing; a cover formed in the shape of a square plate and installed to cover the outer surface of the cover frame; a motor installed on one side of the interior of the housing to form a driving force for flowing air; and a sliding door installed on one side of the cover frame to form the opening and closing of the opening surface of the housing, wherein the sliding door slides along the cover frame to open the interior of the housing and discharge air introduced into the housing toward the interior of the bathroom, and the sliding door includes a door plate installed to cover at least a part of the housing to open and close the interior of the housing. A blower frame formed in the shape of a rectangular parallelepiped with an open center, installed on the inner surface of the cover frame, and communicating the interior of the housing with the interior of the bathroom so that air inside the housing is discharged toward the bathroom; a blower guide formed in the shape of a square plate extending in one direction, installed on the inner side of the blower frame, and forming the direction of air flow moving toward the bathroom; and a sliding door drive unit installed on one side of the cover frame to provide driving force for bidirectional movement by sliding of the door plate and movement of the blower guide, wherein the sliding door drive unit comprises: a sliding rail fixedly installed along one direction on each side of the inner surface of the cover frame and guiding the movement of the door plate; and a rack installed between the sliding rails and installed to be coupled with the door plate.A ventilation fan comprising a pinion gear connected to the rack and a drive motor that provides the driving force of the pinion gear to form bidirectional movement of the rack, wherein a door plate connecting shaft protruding from one side in the longitudinal direction of the door plate is inserted and mounted in a connecting shaft mounting part formed on the rack, and wherein the door plate connecting shaft is seated on a sliding rail while inserted and mounted in the connecting shaft mounting part formed on the rack and descends along the sliding rail. Claim 2 A ventilation fan according to claim 1, wherein the motor comprises: a motor case installed inside the housing; an impeller installed inside the motor case to generate a suction force for forming air flow; and blades installed radially along the outer side of the impeller to determine the direction of movement of the air flowing by the impeller. Claim 3 A ventilation fan according to claim 1, wherein a branch port is installed on one side of the housing to communicate with the outside and allow air to flow in from the outside, and an exhaust port is installed on the other side to communicate with the outside and discharge air contained inside the housing to the outside, and air flowing into the inside of the housing through the space spaced apart from each other between the branch port, the housing, and the cover is supplied into the bathroom by opening the sliding door. Claim 4 A ventilation fan according to claim 1, wherein an intake port is formed between the housing and the cover at a certain distance from each other to allow air from the bathroom to flow in, and the air flowing into the intake port flows inside the housing and is supplied into the bathroom by opening the sliding door. Claim 5 delete Claim 6 delete Claim 7 A ventilation fan according to claim 1, characterized in that the blower guides are installed at regular intervals along the inner surface of the blower frame.

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