JP2017172950A - Ventilation fan - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation fan capable of improving reliability of a product by achieving not only low noise but also multifunctional performance and excellent moisture-proof effect by adjusting a ventilation system on the basis of needs.SOLUTION: A fan of a ventilation fan is disposed in a casing. The fan forms a first space and a second space independently from each other, and has an air intake and an air outlet. A cover assembly is disposed on the air intake, and includes a main body and a cover. A first opening of the main body is disposed corresponding to the air intake. The cover and the main body are disposed at an interval to form a gap. A movable wind deflector is disposed in the fan corresponding to the air outlet. A control circuit board is disposed in the second space. Air flows through the first opening, the air intake and the first space by way of the gap, and the air is guided to the second opening of the main body and discharged by the movable wind deflector, or guided to the air outlet and discharged.SELECTED DRAWING: Figure 2A

Description

  The present invention relates to a ventilation fan, and more particularly to a ventilation fan having multi-functional applicability.

  As technology evolves, people become more and more focused on the quality of daily necessities, and in particular, air quality and people's health are closely related and extremely important. Today, however, it is well known how to build an unventilated room in a building using special building materials in order to increase the soundproofing effect and the insulation effect during cooler operation. Because of insufficient ventilation, it is impossible to ventilate pollutants that are harmful to the human body.

  The normal ventilation fan has a simple ventilation design, and the ventilation method cannot be adjusted based on the user's needs to meet different needs, and the noise generated from the ventilation fan is considerably large. Therefore, how to provide a low noise ventilation fan capable of adjusting the ventilation mode based on the user's needs in order to achieve the multi-functional effect is an important issue.

  In view of the above problems, the object of the present invention is to adjust the ventilation method based on the user's needs as well as low noise, and at the same time achieve multi-functional applicability, and at the same time achieve an excellent moisture-proof effect, It is an object to provide a ventilation fan that can improve reliability.

  The ventilation fan according to the present invention includes a casing, a fan, a cover assembly, a movable wind deflector, and a control circuit board. The fan is disposed in the casing, and at the same time, the fan forms a first space and a second space which are independent from each other, and has a suction port and a discharge port. The cover assembly is disposed at the suction port and simultaneously includes a main body and a cover. The main body is coupled to the casing and has a first opening and a second opening, and the first opening is installed corresponding to the suction port. The cover is installed at a distance from the main body to form a gap, and the size of the cover is set larger than the size of the first opening. A movable wind deflector is installed in the fan. In this case, the movable wind deflector is installed corresponding to the discharge port, and a control circuit board is installed in the second space in the fan. The airflow flows through the gap through the first opening, the suction port, and the first space, and at the same time, the movable wind deflector guides the airflow to the second opening and discharges it, or guides it to the discharge port and discharges it. Thus, the airflow is discharged into the room through the second opening, or is discharged into a space other than the room through the discharge port.

  In one embodiment, the movable wind deflector is movable or rotating, and at the same time, the movable wind deflector guides and discharges a part of the airflow to the second opening and the other part of the airflow to the outlet. When guiding and discharging and when the fan is not operating, the control circuit board controls the movement or rotation of the movable window deflector to shield the discharge port.

  In one embodiment, the fan further includes a motor and a blade coupled to the motor, the motor further including a drive circuit, and the drive circuit drives and rotates the motor and the blade.

  In one embodiment, the fan further forms a third space adjacent to the second space, the third space communicates with the second space through the fourth opening, and the fan communicates with the third space. It further has an opening.

  In one embodiment, the casing further includes an opening corresponding to the discharge opening, and a baffle is further installed at a position corresponding to the opening of the fan. When not activated, the baffle closes the opening.

  In one embodiment, the cover assembly further includes a plurality of fixing portions and a plurality of coupling portions. The plurality of fixing portions are installed on the main body, and the plurality of coupling portions are installed on the cover, and at the same time, the plurality of coupling portions are coupled to the plurality of fixing portions, respectively.

  In one embodiment, the ventilation fan further comprises a plurality of wind direction plates and at least one lever, the lever is connected to one side of the plurality of wind direction plates, the cover has a third opening, and the third opening is a second opening. The airflow is exhausted from the second opening and the third opening, and the plurality of wind direction plates are installed between the second opening and the third opening and at the same time through the lever. Used to adjust the discharge direction of airflow.

  In one embodiment, the ventilation fan further comprises a motion sensing module electrically connected to the control circuit board, the motion sensing module having a motion sensing element, a light sensing element and a light emitting element, the motion sensing element, the light The sensing element and the light emitting element are installed on the cover of the cover assembly and are electrically connected to the control circuit board, respectively, and when the motion sensing element is activated, the motion sensing element sends a motion sensing signal to the control circuit board. The ventilator can be automatically activated and rotated. When the light detection element operates, the light emitting element can emit light.

  In one embodiment, the motor is a DC motor, the control circuit board further includes a rectification module and a step-down module, the rectification module is electrically connected to the AC power source and the step-down module, and the step-down module is electrically connected to the drive circuit. At the same time, the rectification module rectifies the input AC power source to a DC power source, and after stepping down the DC power source by the step-down module, supplies it to the DC motor and the drive circuit.

  In one embodiment, the ventilation fan further includes a filter that slidably contacts the main body and is attached to the first opening. The ventilation fan further includes a heater, and the heater is installed at a position corresponding to the second opening between the movable wind deflector of the fan and the second opening of the body of the cover assembly, and the control circuit board is movable. Before the wind deflector is controlled to direct the airflow to the second opening, the heater heats the airflow.

  In one embodiment, the ventilation fan further includes a first temperature sensor and a second temperature sensor, and the first temperature sensor and the second temperature sensor are each electrically connected to the control circuit board. The first temperature sensor is installed at the inlet of the fan and is used to sense the airflow temperature at the inlet. In addition, the heater includes a plurality of heating elements, and at the same time, determines a plurality of types of heating modes based on the number of activated heating elements, and the plurality of types of heating modes are determined by the first temperature sensor. The air flow temperature is sensed and switched via a relay on the control circuit board. Further, at the same time when the second temperature sensor is installed on the heater, when the second temperature sensor detects a temperature abnormality of the heater, a temperature warning signal is transmitted to the control circuit board. Control the buzzer or horn to sound an alarm and simultaneously control the heater and ventilator to turn off the heater and ventilator.

  As described above, in the ventilation fan of the present invention, the fan forms a first space and a second space that are independent from each other, and the cover and the main body of the cover assembly are spaced apart to form a gap, and the movable wind deflector Is installed corresponding to the outlet, and the control circuit board is installed in the second space. In addition, the airflow flows to the suction port through the gap, and at the same time, the movable wind deflector guides the airflow to the discharge port and discharges it, or guides it to the second opening and discharges it. Thus, the ventilating fan of the present invention is provided in an independent space in which the respective devices are partitioned from each other, and since these devices do not vibrate or interfere with the airflow, they operate with low noise. Multi-functionality such as ventilation, heater, drying, or cooler can be achieved by switching to and adjusting various ventilation modes based on user needs. The control circuit board is disposed in the second space, and at the same time, the second space and the first space and the third space through which the airflow flows are independent from each other. Therefore, the water vapor in the air stream is less likely to condense and condense, so that a favorable moisture-proof effect can be achieved and the reliability of the product can be improved.

It is the external appearance schematic of the ventilation fan of the preferable Example of this invention. It is an exploded view of the ventilation fan shown by FIG. 1A. It is sectional drawing along straight line AA of the ventilation fan shown by FIG. 1A. It is sectional drawing in another operation state along straight line AA of the ventilation fan shown by FIG. 1A. It is sectional drawing in another operation state along straight line AA of the ventilation fan shown by FIG. 1A. It is the partial fracture | rupture schematic which looked at the inside of the ventilation fan shown by FIG. 1A from another angle.

  With reference to related drawings, a ventilation fan according to a preferred embodiment of the present invention will be described as follows, and the same members will be described with the same reference numerals. All embodiments of the present invention are schematic and do not represent actual sizes and ratios. Further, in the contents of the following embodiments, directions of “up” and “down” are used to indicate a relative positional relationship. In addition, the description that one member is provided on another member “above”, “above”, “below”, or “below” means that one member and the other member in the embodiment are directly In addition to the case where they are coupled, there is also a case where the other member is not directly coupled due to another member interposed between the one member and the other member. included.

  Please refer to FIGS. 1A to 2C, respectively. FIG. 1A is a schematic external view of a ventilation fan according to a preferred embodiment of the present invention. FIG. 1B is an exploded view of the ventilation fan shown in FIG. 1A, and FIGS. 2A to 2C are cross-sectional views of different modes along line AA of the ventilation fan of FIG. 1A, respectively.

  The ventilation fan 1 includes a casing 11, a fan 12, a cover assembly 13, a movable window deflector 14, and a control circuit board 15. The ventilation fan 1 further includes a heater 18 and a filter 19. The ventilation fan 1 of the present embodiment can be installed in a room such as a bedroom, bathroom, toilet, kitchen, or office, and discharges indoor air to the outside based on a user's setting, or Multi-functionality such as ventilation, heating, drying, or cooling by maintaining the air flow by introducing into the room or exhausting part of the air to the outside and taking in outdoor air instead of replacing it Can be realized. In actual application, the ventilation fan 1 can be installed, for example, on the ceiling of the mezzanine (mezzanine floor) (that is, the lower surface of the floor of the mezzanine floor) so that the cover assembly 13 faces downward.

  The casing 11 has an accommodation space S, and at the same time, the fan 12 is installed and attached in the accommodation space S of the casing 11. The fan 12 forms a first space S1 and a second space S2 that are independent of each other, and has a suction port 121 and a discharge port 122. Specifically, the second space S2 is adjacent to the first space S1, and at the same time does not communicate with the first space S1. The first space S1 communicates with the suction port 121 and the discharge port 122 and at the same time allows the air flow to pass therethrough. The second space S2 is used to accommodate the control circuit board 15. Since the first space S1 and the second space S2 are independent of each other, the control circuit board 15 is not affected by the flowing airflow. The material of the casing 11 is, for example, plastic, glass fiber reinforced plastic, metal, or alloy, but is not limited thereto.

  The fan 12 according to the present embodiment further includes a motor 123 and a blade 124. The motor 123 is, for example, an outer rotor DC motor, but is not limited thereto. The motor 123 further includes a drive circuit (not shown), and the drive circuit drives and rotates the motor 123 to drive and rotate the blade 124 coupled to the motor 123, so that air is sucked in. After being drawn into the first space S1 from 121, it can be discharged from the discharge port 122 or other opening (detailed description will be given below). Further, in this embodiment, the casing 11 further has an opening O, the opening O is provided at a position corresponding to the discharge port 122 of the fan 12, and a baffle 125 is further installed in the opening O. It is pivotally attached to the opening O via at least one shaft 126. When the fan 12 of the ventilation fan 1 is activated (started up) and the airflow is discharged from the outlet 122 and the opening O, the airflow is discharged by pushing the baffle 125 open (the opening O is connected to the blower pipe, Can be guided outdoors or into the air ducts). When the fan 12 of the ventilation fan 1 does not operate (does not start), the baffle 125 closes the opening O by gravity, so that the external airflow can be prevented from flowing back into the fan 12 from the opening O.

  The cover assembly 13 is installed so as to face the inlet 121 of the fan 12, and includes a main body 131 and a cover 132. The main body 131 is attached so as to cover the casing 11, and has a first opening O 1 and a second opening O 2, and the first opening O 1 is installed so as to face the suction port 121. The size of the cover 132 is larger than the size of the first opening O1 of the main body 131, and the cover 132 and the main body 131 are installed at an interval to form a gap G. The distance of the gap G is preferably 5 mm to 30 mm, but is not particularly limited. That is, the cover 132 and the main body 131 of the present embodiment are two plate-like members installed in parallel, and at the same time, have a gap G between them, and the air passes from the gap G to the first opening O1 and the suction port. It passes through 121 and is introduced into the fan 12.

  Although the 1st opening O1 of the main body 131 of a present Example is divided into a some opening part with a rib, it is not limited to this aspect. In addition to providing structural strength, the ribs can secure the filter 19 when the ventilation fan 1 is activated. The filter 19 slidably comes into contact with the main body 131 and is attached to the first opening O1, so that the user can easily remove the filter 19 and thus can be easily washed. Therefore, by designing the filter 19 to be in sliding contact with the main body 131 and forming the gap G between the main body 131 and the cover 132, the user does not have to open or remove the cover 132. Since the filter can be replaced, cleaning of the filter 19 is relatively easy and convenient.

  The cover assembly 13 further includes a plurality of fixing portions 1311 and a plurality of coupling portions 1312 (see FIG. 2A). The plurality of fixing portions 1311 are provided on the main body 131, and the plurality of coupling portions 1312 are respectively covered with the cover. The plurality of coupling portions 1312 are provided on 132 and coupled to the plurality of fixing portions 1311 to form a gap G. In this embodiment, each coupling portion 1312 extends from the inner surface of the cover 132 toward the main body 131 and simultaneously corresponds to each fixing portion 1311. For example, the coupling portion 1312 and the fixing portion 1311 have a tenon structure that can be engaged with each other, and the cover 132 and the main body 131 can be removed. Alternatively, it is possible to consider that the main body 131 and the cover 132 are securely coupled, and the coupling portion 1312 can be fastened to the fixing portion 1311 with a screw. Further, the two bodies of the main body 131 and the cover 132 are installed at an interval to form the gap G, so that it is possible to realize a horizontal suction type air flow suction.

  Therefore, when the ventilation fan 1 operates, the airflow flows through the gap G to the first opening O1 (and the filter 19) and the suction port 121, and further passes through the suction port 121, and then passes through the fan 12 and the discharge port. 122, or other openings. That is, when the ventilation fan 1 is installed horizontally on the ceiling, dust can be prevented from being accumulated in the cover 132 by sucking air from the gap G by the suction method of the horizontal suction type instead of the vertical suction type. Furthermore, since the cover 132 does not have an intake port, the ventilation fan 1 of the present embodiment has an effect of lower noise as compared with the cover of a conventional ventilation fan having an intake port on the front. Further, since the cover 132 of this embodiment does not have a suction port on the front surface, it has a waterproof function. For example, when the ventilation fan 1 is installed in a bathroom, the cover 132 can prevent water from directly entering the fan 12 if the user accidentally spills water on the fan 1 during a shower. There is no effect on operation.

  The cover 132 further has a third opening O3, and the third opening O3 is installed corresponding to the second opening O2 of the main body 131. In addition, the ventilation fan 1 of the present embodiment further includes a plurality of wind direction plates 16 and at least one lever 17 (see FIGS. 2A to 2C), and the plurality of wind direction plates 16 include a second opening O2 and a third opening O3. At the same time, the lever 17 is connected to one side of the plurality of wind direction plates 16. In this embodiment, the case where one lever 17 is provided is taken as an example, and the plurality of wind direction plates 16 are engaged with the lever 17. By installing the lever 17 and the plurality of wind direction plates 16, it is possible to adjust the discharge direction of the airflow. More preferably, the lever 17 is automatically controlled by a stepping motor control or the like based on a user setting (for example, direct setting is performed by the control panel 152 shown in FIG. 1B or remote operation setting is performed by a remote control device). The plurality of wind direction plates 16 are driven and rotated to open the plurality of wind direction plates 16 (airflow can be discharged from the third opening O3) or closed state. By setting (the airflow is not allowed to be discharged from the third opening O3), the discharge amount, the discharge direction, and the angle can be controlled. In a different embodiment, the plurality of wind direction plates 16 can be opened and closed by operating the lever 17 through a manual method. In other embodiments, the plurality of wind direction plates 16 can be prevented from moving at a fixed angle, and the present invention is not limited to any of them.

  The movable wind deflector 14 is installed in the fan 12 and at the same time as the discharge port 122. The movable wind deflector 14 is movable or rotary, and is manually controlled or automatically controlled, but is not limited thereto. In this embodiment, the user makes settings on the control panel 152 installed in the main body 131 or performs remote operation settings by using a remote control device, and controls the movement or rotation of the movable window deflector 14 via the control circuit board 15. Thus, the air flow is guided to the discharge port 122 to be discharged, or is guided to the second opening O2 (and the third opening O3) to be discharged, or a part of the air flow is guided to the second opening O2. The other part of the airflow is guided to the discharge port 122 and discharged. When the fan 12 of the ventilation fan 1 does not operate (does not start), the movable wind deflector 14 is controlled by the control circuit board 15 so as to move or rotate downward to shield the outlet 122 and at the same time match the opening O. When the baffle 125 installed in this manner closes the opening O, it is possible to achieve an effect that double prevention of the external airflow from flowing back to the fan 12 from the opening O or the discharge port 122 can be achieved.

  Therefore, as shown in FIG. 2A, when the control circuit board 15 controls the movable wind deflector 14 to move or rotate upward (shielding the second opening O2), the airflow passes through the gap G to the first. Simultaneously with the flow through the opening O1, the suction port 121, and the first space S1, the movable wind deflector 14 guides the airflow to the discharge port 122 and discharges it to a space outside the room through the discharge port 122 and the opening O ( For example, the purpose of indoor ventilation can be achieved by discharging to the outside or a pipe).

  Further, as shown in FIG. 2B, the heater 18 is installed between the movable window deflector 14 of the fan 12 and the second opening O2 of the main body 131, and corresponds to the second opening O2. When the substrate 15 is controlled to move or rotate the movable wind deflector 14 downward to shield the discharge port 122, the airflow passes through the gap G through the first opening O1, the suction port 121, and the first space S1. Simultaneously with the flow, the movable wind deflector 14 guides the airflow to the second opening O2 and discharges it into the room via the third opening O3. Before the control circuit board 15 controls the movable wind deflector 14 to guide the airflow to the second opening O2, the heater 18 heats the airflow, thereby warming and drying the airflow discharged into the room. Can be.

  Furthermore, as shown in FIG. 2C, when the control circuit board 15 controls the movement or rotation of the movable wind deflector 14 to shield some of the discharge ports 122 and shield some of the second openings O2. The airflow flows through the first opening O1, the inlet 121, and the first space S1 via the gap G. At the same time, the movable wind deflector 14 heats a part of the airflow to the second opening O2 (the heater 18). And a part of the airflow is guided to the discharge port 122, so that a part of the airflow is discharged into the room from the third opening O3, and the other part of the airflow is transferred from the opening O to a space outside the room. By venting, some ventilation and some circulation objectives can be achieved. Therefore, the ventilation fan 1 of the present embodiment can be applied to multifunctional applications such as ventilation, heater, drying, or cooler by adjusting the discharge method through the operation design of the movable wind deflector 14 based on the user's needs. Can be realized.

  Reference is now made to FIG. FIG. 3 is a partially broken schematic view of the inside of the ventilation fan of FIG. 1A viewed from another angle. In FIG. 3, the cover 132 of the ventilation fan 1 is placed downward, and the cover 151 covering the control circuit board 15 in FIG. 1B is not shown.

  The control circuit board 15 includes at least one rectifying module, a step-down module and a relay (both not shown). The rectifying module is electrically connected to an AC power supply (AC) and the step-down module, and at the same time, the step-down module By being electrically connected to the drive circuit of the motor 123 (in this case, a direct current motor), the rectification module rectifies the input alternating current power supply (AC) to the direct current power supply, and steps down the direct current power supply via the step-down module. After that, the motor 123 (DC motor) and its drive circuit are supplied.

  The control circuit board 15 is disposed in the second space S2 and is bonded to the side wall of the fan 12 at the same time. Further, in the fan 12 of the present embodiment, a third space S3 (see FIGS. 1B and 3) adjacent to the second space S2 is further formed, and at the same time, the third space S3 and the second space S2 are between the second space S2. Four openings O4 are provided, and the fourth openings O4 are mainly for penetrating through the power supply wiring of the ventilation fan 1 to be electrically connected to the control circuit board 15. The power supply wiring penetrates the fourth opening O4 and then seals the fourth opening O4, thereby preventing external moisture or water vapor from entering the second space S2 from the fourth opening O4. . Further, since the control circuit board 15 is disposed on the side surface (in the second space S2) of the housing of the fan 12, the first space S1 in which the airflow flows is separated from the second space S2 in which the control circuit board 15 is provided ( That is, the first space S1 and the second space S2 can not be communicated), and the second space S2 provided with the control circuit board 15 is sealed by sealing the cover 151 so as to cover the second space S2. It becomes difficult to enter. This makes it difficult for water vapor to condense and condense on the control circuit board 15 and achieve a better moisture-proof effect, thereby improving the reliability of the product.

  The fan 12 further has a fifth opening O5 (see FIGS. 1B and 3), and the fifth opening O5 communicates with the outside of the fan 12 by communicating with the third space S3. Therefore, when the ventilation fan 1 activates the indoor ventilation or the dehumidifying function due to the installation of the third space S3, the airflow or water vapor / humidity / hot air flows through the first opening O1 and the inlet 121 via the gap G. Then, a large amount of airflow, or steam / humidity / hot air is sequentially discharged to a space other than the room via the first space S1, the discharge port 122, and the opening O, and on the other hand, A small part of the hot air remaining in the air flows into the third space S3 and is then discharged to the fifth opening O5 (discharged to the outside of the fan 12 or the outside of the ventilation fan 1). Therefore, water vapor does not condense or condense in the second space S2 provided with the control circuit board 15, and a better moisture-proof effect is achieved, thereby improving the reliability of the product.

  The ventilation fan 1 according to the present embodiment further includes a motion sensing module (not shown), and the motion sensing module is electrically connected to the control circuit board 15. In this case, the motion sensing module includes a motion sensing element (not shown), a light sensing element (eg, but not limited to a photoresistor) and a light emitting element (eg, but not limited to a light emitting diode). The motion sensing element, the light sensing element, and the light emitting element can be disposed on the circuit board, and at the same time, the circuit board can be disposed on the cover 132 of the cover assembly 13. Furthermore, the motion sensing element, the light sensing element, and the light emitting element are each electrically connected to the control circuit board 15, and when the motion sensing element detects that a person enters a room (for example, a bathroom) in which the ventilation fan 1 is installed, The motion sensing element transmits a motion sensing signal to the control circuit board 15. At this time, the ventilation fan 1 can be automatically activated and rotated via the control circuit board 15. If the light detection element is used together, when the room brightness is insufficient, the light detection element is activated to transmit a light quantity shortage signal to the control circuit board 15 and simultaneously activate the light emitting element to emit light. Can be made. In addition, when the brightness of the room is sufficient, when the motion sensing element detects that a person enters the room, only the ventilation fan 1 is activated and rotated, and the light emitting element does not emit light (that is, the light sensing element). Will not send a light shortage signal).

  It should be noted that the ventilation fan 1 of the present embodiment further includes a first temperature sensor and a second temperature sensor, and the first temperature sensor and the second temperature sensor are electrically connected to the control circuit board 15, respectively. Among them, the first temperature sensor is installed near the suction port 121 of the fan 12 and senses the airflow temperature near the suction port 121 to control the warm-up of the ventilation fan 1 or the function of temperature adjustment (this point will be described later). Will be described in detail again). The second temperature sensor is installed on the heater 18 and is used for detecting an abnormality of the heater 18. For example, when the second temperature sensor senses that the temperature of the heater 18 has exceeded 70 degrees Celsius, it sends a temperature warning signal to the control circuit board 15, at which time the control circuit board 15 controls the buzzer or horn. The alarm sound can be sounded, and at the same time, the heater 18 and the ventilation fan 1 can be controlled to turn them off.

  In accordance with the function of the warm-up control or temperature adjustment, the heater 18 further includes a plurality of sets of heating elements (not shown). In the present embodiment, the heater 18 includes three sets of heating elements, and at the same time, defines three types of heating modes based on the number of activated heating elements, and each of the three heating modes is a first set. The activation of the heating element, the second group heating element, and the third group heating element is represented by the above three heating modes, in which the air temperature in the vicinity of the inlet 121 is sensed by the first temperature sensor and based on the detected temperature by the relay. Three heating modes are switched. Hereinafter, an example will be described, but the operation temperature of the present application is not limited to the following embodiment.

  The first heating mode is a mode in which, for example, when the temperature sensed by the first temperature sensor is in the first temperature range, the first heating element is activated to perform heating, and the first temperature range is, for example, It is 40 degrees Celsius or higher. The second heating mode is a mode in which, for example, when the temperature sensed by the first temperature sensor is in the second temperature range, the second set heating element is further activated to perform heating, and the second temperature range is, for example, , Between 35 and 40 degrees Celsius. In the third heating mode (that is, warm-up mode), for example, when the temperature sensed by the first temperature sensor is in the third temperature range, the third set of heating elements is further activated (that is, all the heating elements are turned on). In this mode, heating is performed, and all the heating elements are activated to perform heating, thereby achieving a warm-up function. In this case, the third temperature range is, for example, between 30 ° C. and 35 ° C.

  As described above, in the ventilation fan of the present invention, the fan forms a first space and a second space that are independent from each other, and the cover and the main body of the cover assembly are spaced apart to form a gap, and the movable wind deflector Is installed corresponding to the outlet, and the control circuit board is installed in the second space. In addition, the airflow flows to the suction port through the gap, and at the same time, the movable wind deflector guides the airflow to the discharge port and discharges it, or guides it to the second opening and discharges it. Thus, the ventilating fan of the present invention is provided in an independent space in which the respective devices are partitioned from each other, and since these devices do not vibrate or interfere with the airflow, they operate with low noise. Multi-functionality such as ventilation, heater, drying, or cooler can be achieved by switching to and adjusting various ventilation modes based on user needs. The control circuit board is disposed in the second space, and at the same time, the second space and the first space and the third space through which the airflow flows are independent from each other. Therefore, the water vapor in the air stream is less likely to condense and condense, so that a favorable moisture-proof effect can be achieved and the reliability of the product can be improved.

  The above examples are illustrative and not limiting. Any equivalent modifications or changes made without departing from the spirit and scope of the present invention are included in the appended claims.

  Since the present invention is configured as described above, the reliability of the product is improved by adjusting the ventilation system based on not only the low noise but also the user's needs, achieving multi-functionality and at the same time achieving an excellent moisture-proof effect. It is possible to provide a ventilation fan capable of improving the performance.

DESCRIPTION OF SYMBOLS 1 Exhaust fan 11 Casing 12 Fan 121 Inlet port 122 Outlet port 123 Motor 124 Blade 125 Baffle 126 Shaft 13 Cover assembly 131 Main body 1311 Fixed part 1312 Coupling part 132 Cover 14 Movable wind deflector 15 Control circuit board 151 Cover 152 Control panel 16 Wind direction board 17 lever 18 heater 19 filter G gap O opening O1 first opening O2 second opening O3 third opening O4 fourth opening O5 fifth opening S receiving space S1 first space S2 second space S3 third space

The ventilation fan according to the present invention is disposed in the casing and the casing, and forms a first space and a second space independent from each other, and at the same time forms a third space adjacent to the second space. A fan having a mouth and a discharge port; and a cover assembly disposed at the suction port, the cover assembly being coupled to the casing and having a first opening and a second opening, wherein the first opening Includes a main body installed corresponding to the suction port, and a cover installed at a distance from the main body to form a gap, and having a size larger than the size of the first opening, and further in the fan And a movable wind deflector installed in correspondence with the outlet, and a control circuit board installed in the second space, and an air flow is provided through the gap. At the same time as flowing through the opening, the suction port, and the first space, the movable wind deflector guides and discharges the airflow to the second opening, or guides and discharges the airflow to the second space. Is located on the side wall of the fan, and the third space has a fifth opening to communicate with the outside of the fan.

Claims (12)

A casing,
A fan disposed in the casing, forming a first space and a second space independent from each other, and having a suction port and a discharge port;
A cover assembly disposed at the inlet,
The cover assembly is
A main body coupled to the casing and having a first opening and a second opening, the first opening being installed corresponding to the inlet;
A gap that is spaced apart from the main body to form a gap, the cover having a size larger than the size of the first opening,
Furthermore, at the same time as being installed in the fan, a movable wind deflector installed corresponding to the outlet,
A control circuit board installed in the second space,
Airflow flows through the gap through the first opening, the suction port, and the first space, and at the same time, the movable wind deflector guides the airflow to the second opening and discharges it, or guides it to the discharge port. Ventilation fan, characterized in that   The ventilation fan according to claim 1, wherein the air flow is discharged into the room through the second opening or discharged into a space other than the room through the discharge port.   The movable wind deflector is movable or rotating, and at the same time, the movable wind deflector guides and discharges a part of the airflow to the second opening and the other part of the airflow to the discharge port. The control circuit board controls the movement or rotation of the movable window deflector to shield the discharge port when the fan is not guided and discharged and the fan is not operated. A ventilation fan as described in 1. A plurality of wind direction plates and at least one lever;
The lever is connected to one side of the plurality of wind direction plates,
The cover has a third opening, the third opening is installed corresponding to the second opening, and the air flow is discharged from the second opening and the third opening,
The plurality of wind direction plates are installed between the second opening and the third opening, and are used to adjust a discharge direction of the airflow through the lever. The ventilation fan according to 1.   The ventilation fan according to claim 1, wherein the fan further forms a third space adjacent to the second space, and further includes a fifth opening communicating with the third space.   The motion sensing module further includes a motion sensing module electrically connected to the control circuit board, the motion sensing module having a motion sensing element, a light sensing element, and a light emitting element. The motion sensing element, the light sensing element, and the light emitting element are: The control circuit board is installed on the cover of the cover assembly and is electrically connected to the control circuit board, and when the operation sensing element or the light sensing element is activated, an operation detection signal or a light quantity deficiency signal is sent to the control circuit board, respectively. The ventilation fan according to claim 1, wherein the ventilation fan is automatically activated and rotated or the light emitting element is caused to emit light by being sent to.   The fan further includes a motor and a blade coupled to the motor, the motor further including a drive circuit, and the drive circuit drives and rotates the motor and the blade. Item 1. The ventilation fan according to Item 1.   The motor is a DC motor, the control circuit board further includes a rectification module and a step-down module, the rectification module is electrically connected to an AC power source and the step-down module, and the step-down module is electrically connected to the drive circuit. At the same time, the rectifying module rectifies the input AC power source into a DC power source, and steps down the DC power source by the step-down module, and then supplies the DC power source to the driving circuit. The ventilation fan according to claim 7, characterized in that   Between the movable window deflector of the fan and the second opening of the main body of the cover assembly, the control circuit board controls the movable window deflector. The ventilation fan according to claim 1, further comprising a heater that heats the airflow before the airflow is guided to the second opening.   The apparatus further comprises a first temperature sensor electrically connected to the control circuit board, and the first temperature sensor is installed at the suction port of the fan and is used to sense the temperature of the airflow at the suction port. The ventilation fan according to claim 9, wherein   The heater includes a plurality of heating elements, and at the same time, determines a plurality of types of heating modes based on the number of the activated heating elements, and the plurality of types of heating modes are determined by the first temperature sensor. The ventilation fan according to claim 10, wherein the ventilation fan is switched through a relay of the control circuit board by sensing the temperature of the airflow at the suction port.   A second temperature sensor electrically connected to the control circuit board is further provided, and the second temperature sensor is installed on the heater, and at the same time, the second temperature sensor detects a temperature abnormality of the heater. In this case, by transmitting a temperature warning signal to the control circuit board, the control circuit board controls the buzzer or horn to sound an alarm sound, and controls the heater and the ventilation fan to control the heater and the ventilation fan. The ventilation fan according to claim 1, wherein the ventilation fan is turned off.

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