JP2018178834A - Electric fan - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric fan capable of aggregating wind to a heat source with a simple structure.SOLUTION: An electric fan includes: a rotary fan; a heat source configured to heat gas fed out by the rotary fan; a ventilation part having an arrangement hole on which the heat source is arranged, and a first vent hole through which gas circulates; and a movable shutter having an opening fit to the arrangement hole, and configured to open/close the first vent hole. When the shutter closes the first vent hole, the arrangement hole and the first vent hole communicate with each other. When the first vent hole is closed, wind is aggregated at the arrangement hole and the opening.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a fan provided with a heat source and a rotating fan.

  Conventionally, a fan has been proposed that includes a heat source, a rotary fan, and a hemispherical shape and a heat radiating unit that covers the rotary fan. By the rotation of the rotating fan, the wind is heated against the heat source and then delivered along the heat radiating means. Therefore, direct contact of the user with warm air is prevented (see, for example, Patent Document 1).

Japanese Patent Application Publication No. 2003-28454

  In order to blow warm air, the fan of Patent Document 1 first focuses the wind on a heat source. However, in order to concentrate the wind on the heat source, it is necessary to design the heat radiating means with high accuracy, and it is also necessary to accurately position the rotary fan with respect to the heat radiating means.

  This invention is made in view of such a situation, and it aims at providing the fan which can concentrate wind on a heat source with simple composition.

  An electric fan according to the present invention comprises: a rotating fan; a heat source for heating a gas delivered by the rotating fan; a vent having an arrangement hole for arranging the heat source and a first vent for passing the gas; The arrangement hole and the first vent communicate with each other when the shutter has the opening corresponding to the hole and opens and closes the first vent, and the shutter closes the first vent. It is characterized by

  In the present invention, when the shutter closes the first vent, the placement hole and the opening are in communication. Because wind can not flow through the first vent, it concentrates on the deployment holes and openings. Since the heat source is disposed in the arrangement hole, the wind is concentrated on the heat source.

  In the fan according to the present invention, the shutter and the rotary fan are opposed to each other, and the shutter has a plurality of second vents through which gas flows, and between the two adjacent second vents. There is provided a closing portion which protrudes toward the rotating fan and closes the first vent, and the width of the closing portion on the rotating fan side is in the direction crossing the projecting direction of the closing portion. It is characterized in that it is shorter than the opposite width of the rotating fan.

  In the present invention, the width of the closing portion is short on the rotary fan side (upstream side of the wind) and long on the opposite side of the rotary fan (downstream side of the wind). Because the downstream width of the wind is long, when the closing part closes the first vent, it can be closed reliably. When the closing portion does not close the first vent, the first vent and the second vent are in communication, and the closing portion does not overlap the first vent and the second vent in the wind flow direction. It is arranged in the position. Since the upstream width of the closing portion is narrow, it is possible to prevent the closing portion from obstructing the flow of wind toward the first vent.

  The fan according to the present invention includes a detection unit that detects the opening and closing of the shutter, and a control unit to which a signal of the detection unit is input, and the control unit detects the closing of the shutter when the detection unit detects the closing of the shutter. When the heat source is turned on and the detection unit detects that the shutter is open, the control unit turns off the heat source.

  In the present invention, when the shutter closes the first vent, the heat source is turned on, and the wind that hits the heat source is heated. When the shutter opens the first vent, the heat source is turned off and the wind is not heated even when it hits the heat source.

  In the fan according to the present invention, when the detection unit detects the closing of the shutter, the control unit decreases the rotational speed of the rotary fan, and when the detection unit detects the opening of the shutter, the control unit Is characterized in that the rotational speed of the rotary fan is increased.

  In the present invention, when the shutter closes the first vent, the air volume decreases, and the air is heated to a higher temperature and supplied to the user as compared with the case where the air volume does not decrease. When the shutter opens the first vent, the air volume is large, and a large air volume is supplied to the user.

  In the fan according to the present invention, an accommodating portion that accommodates the rotary fan and is rotatable about an axis intersecting the rotation axis of the rotary fan, a support that rotatably supports the housing, and the accommodating portion. And a locking portion for stopping rotation of the storage portion, and a locking portion provided on the support portion and receiving the locking portion.

  In the present invention, when the locking portion abuts on the locked portion, it is possible to prevent the housing portion from rotating too much.

  The electric fan according to the present invention is characterized in that the shutter is provided with a handle, and the handle can be in contact with the support portion when the housing portion is rotated in one direction.

  In the present invention, the handle of the shutter abuts on the support portion and also functions as a stopper.

  In the fan according to the present invention, the heat source has a plurality of heaters and a support frame for supporting the plurality of heaters, and the plurality of heaters are disposed around the rotation center axis of the rotating fan, The rotation center axis side portion of the heater is connected to the support frame.

  In the present invention, the connection portion between the plurality of heaters and the support frame is disposed on the rotation center shaft side of the rotary fan. The amount of wind in the vicinity of the rotation center axis is smaller than the amount of wind at a location away from the rotation center axis. Since the connecting portion of the heater does not generate heat, by arranging the connecting portion on the rotation center axis side, the portion with a large amount of heat generation in the heater is arranged at a position away from the rotation center axis, that is, a portion with a large air volume.

  A fan according to the present invention includes a stand, and the heater is disposed on the side of the stand.

  In the present invention, the heater is disposed on the stand side, in other words, on the lower side, and hot air can easily reach the floor surface.

  In the fan according to the present invention, when the shutter closes the first vent, the placement hole and the opening are communicated. Because wind can not flow through the first vent, it concentrates on the deployment holes and openings. Since the heat source is disposed in the arrangement hole, the wind is concentrated on the heat source. With a simple configuration, the wind can be concentrated on the heat source and can be reliably heated.

It is a perspective view which briefly displays a fan. It is a disassembled perspective view which briefly displays a fan. It is an exploded right side view which briefly displays a fan. It is a front view of the fan which omitted description of a front frame, a safety fence, and a heater cover. It is a longitudinal cross-sectional view of the fan which abbreviate | omitted description of a front frame, a safety fence, and a heater cover. It is a front view which briefly displays a shutter. It is an end elevation which made the VII-VII line of Drawing 6 a cutting line. It is a perspective view which briefly displays the shutter visually recognized from back. It is the front view of the fan which abbreviate | omitted description of the front frame in case a heater is an OFF state, a safety fence, and a ventilation part. It is an enlarged view of the encircled part shown by A of FIG. It is a front view of the fan which omitted the description of the front frame in case a heater is in an ON state, a safety fence, a heater cover, and a ventilation part. It is an enlarged view of the encircled part shown by B of FIG. It is a right side sectional view which cut off composition near the axis of rotation in case a posture of a seat part is a tipping posture. FIG. 10 is a right side cross-sectional view in which the configuration around the rotation axis is cut in a case where the posture of the housing portion is a posture in which the housing portion is directed right up. It is a flowchart explaining the driving | operation process by a control part.

  Hereinafter, the present invention will be described based on the drawings showing a fan according to an embodiment. FIG. 1 is a perspective view schematically illustrating a fan, FIG. 2 is an exploded perspective view schematically illustrating a fan, and FIG. 3 is an exploded right side view schematically illustrating a fan. In the following description, upper, lower, front, rear, left, and right shown in the drawings are used.

  The fan comprises a stand 1. The stand 1 comprises a circular base 2 and a support cylinder 3. A remote control storage hole 2 a is formed on the right side surface of the circular base 2. The remote control 100 is stored in the remote control storage hole 2a.

  An insertion hole 2 d is provided at the center of the upper surface of the base 2. A plurality of switches 2 b for operating the fan and a plurality of lamps 2 c indicating the state of the fan are provided on the front side of the upper surface of the base 2. Inside the base 2, a control unit 90 for controlling the drive of the fan is provided. The control unit 90 includes a control circuit and a drive circuit for controlling the drive of the motor 11 and the heater 19a described later. The support cylinder 3 is inserted into the insertion hole 2d.

  A support 4 is provided at the upper end of the support cylinder 3. The support portion 4 includes an outer frame 5 and an inner frame 6 having a semicircular arc shape. The outer frame 5 is disposed with the apex of the circular arc facing downward and the both ends directed to the left and right, and the apex is connected to the upper end of the support cylinder 3. The inner frame 6 is superimposed on the outer frame 5 with the apex of the arc facing downward.

  The right end of the inner frame 6 is located above the right end of the outer frame 5. At the right end of the inner frame 6, a rotation shaft 7 is supported with the left and right direction as the rotation axis direction. On the left side of the right end portion of the inner frame 6, a circular rotary plate 8 whose rotational axis direction is the left-right direction is disposed. The rotating plate 8 is connected to the rotating shaft 7 and rotates with the rotating shaft 7.

  The left end portion of the inner frame 6 is also positioned above the left end portion of the outer frame 5, and in the same manner as the right end portion of the inner frame 6, the rotary shaft 7 and the rotary plate 8 are provided. The rotary plate 8 is disposed on the right side of the left end of the inner frame 6. Caps 5 a are provided at the left and right end portions of the inner frame 6. Each cap 5a covers the rotating shaft 7 disposed at the right end and the left end of the inner frame 6, and the rotating shaft 7 is not viewed from the outside.

  Two pins 9 aligned in the front-rear direction from the rotary plate 8 at the right end of the inner frame 6 project inward. In FIG. 2, only the pin 9 on the front side is shown. Two pins 9 aligned in the front-rear direction from the rotary plate 8 at the left end portion of the inner frame 6 protrude inward. In the drawing, the description of the rotary plate 8 and the pin 9 at the left end portion of the inner frame 6 is omitted.

  Inside the inner frame 6, the accommodating part 30 which accommodates the rotational fan 12 is arrange | positioned. The housing unit 30 includes a first connection frame 16 and a second connection frame 13. The first connecting frame 16 and the second connecting frame 13 are arranged in the front-rear direction.

  The first connection frame 16 has a cylindrical shape whose axial direction is the front-rear direction. Insertion holes 16 f are provided in each of the left and right side surfaces of the first connection frame 16. The second connection frame 13 is disposed on the rear side of the first connection frame 16. The second connection frame 13 has a dome shape projecting rearward, and a plurality of slits are formed in the portion projecting rearward. Insertion holes 13 f are provided on the left and right side surfaces of the second connection frame 13 respectively.

  The pin 9 on the front side is inserted into the insertion hole 16 f of the first connection frame 16 at each of the left and right end portions of the inner frame 6. At each of the left and right end portions of the inner frame 6, the pin 9 on the rear side is inserted into the insertion hole 13 f of the second connection frame 13. The first connecting frame 16 and the second connecting frame 13 are connected by the front and rear pins 9.

  Inside the first connection frame 16 and the second connection frame 13, a cylindrical motor support frame 10, a motor 11 and a rotary fan 12 whose axial direction is the longitudinal direction are provided. A motor accommodating portion for accommodating the motor 11 is provided at a central portion of the motor support frame 10. The rotating shaft of the motor 11 projects rearward from the motor housing. The rotary fan 12 is disposed on the rear side of the motor 11, and the rotary fan 12 is connected to the rotary shaft of the motor 11.

  On the rear side of the second connection frame 13, a dome-shaped first cover 14 and a second cover 15 are provided. A plurality of through holes are provided in each of the first cover 14 and the second cover 15.

  As shown in FIG. 2 and FIG. 3, an annular plate 16 a protrudes inward from the entire front edge portion of the first connection frame 16. The shutter 17, the ventilation part 18, the heater unit 19 (heat source) and the safety fence 20 are provided in order on the front side of the annular plate 16a, with the safety fence 20 on the front side. The shutter 17, the ventilation portion 18, the heater unit 19 and the safety fence 20 are disposed inside the cylindrical front frame 21. As shown in FIG. 1, the front frame 21 is connected to the first connecting frame 16.

  4 is a front view of the fan omitting the description of the front frame 21, the safety fence 20, and the heater cover 19c, and FIG. 5 is a longitudinal cross section of the fan omitting the description of the front frame 21, the safety fence 20, and the heater cover 19c. It is a front view. The heater cover 19c will be described later.

  As shown in FIG. 4, the ventilation part 18 is provided with the circular board 18a which made the front-back direction the axial direction. In the central portion of the plate 18a, a rectangular arrangement hole 18b extending to the left and right is formed. The heater unit 19 is arranged in the arrangement hole 18 b. The plate body 18a is provided with a plurality of first vent holes 18c radially extending from the arrangement hole 18b. The first vent 18 c has a fan shape, and the circumferential width at the radially outer side is larger than the width at the radially inner side.

  In the plate 18a, a portion between two adjacent first vent holes 18c and a portion between the first vent holes 18c and the arrangement hole 18b constitute a boundary portion 18d. As shown in FIG. 5, the shutter 17 is disposed between the ventilation portion 18 and the first connection frame 16.

  6 is a front view schematically showing the shutter 17, FIG. 7 is an end view taken along the line VII-VII in FIG. 6, and FIG. 8 is a perspective view schematically showing the shutter 17 viewed from the rear. .

  The shutter 17 includes a disk 17 a whose axial direction is the front-rear direction. At the central portion of the disk 17a, a rectangular opening 17b extending to the left and right is formed. The opening 17b is located substantially directly behind the arrangement hole 18b.

  Above the opening 17b, a semicircular wall 17c in a front view is provided along the outer peripheral portion of the disc 17a. The wall 17c protrudes forward from the disk 17a. Also on the lower side than the opening 17b, a semicircular wall 17c in a front view is provided along the outer peripheral portion of the disk 17a. The wall 17c protrudes forward from the disk 17a.

  The disk 17a is provided with a plurality of second vents 17d radially extending from the opening 17b between the opening 17b and the upper wall 17c and between the opening 17b and the lower wall 17c. In the disk 17a, a portion between the two adjacent second vent holes 17d and a portion between the second vent hole 17d and the opening 17b respectively constitute a closing portion 17e which closes the first vent hole 18c.

  As shown in FIG. 7, the closing portion 17 e protrudes rearward so as to be tapered toward the rear. That is, in the circumferential direction, the width of the rear portion of the closing portion 17e is shorter than the width of the front portion of the closing portion 17e.

  In the radial direction, a plurality of cutouts 17 g are formed in a portion (hereinafter referred to as a flange 17 f) outside the upper and lower walls 17 c of the disk 17 a. The plurality of recesses 17g are arranged in the circumferential direction. A handle 17 h is provided at the lower end of the flange 17 f. The handle 17h protrudes downward from the flange 17f.

  The configuration of the heater unit 19 will be described. As shown in FIG. 3, the heater unit 19 is disposed on the front side of the rotary fan 12 and is disposed on the rotation center axis P of the rotary fan 12. As shown in FIGS. 3 and 4, the heater unit 19 is provided on the rear side of the two heaters 19a, the heater cover 19c provided on the front side of the heater 19a, and the heater 19a, and supports the heater 19a. And a support frame 19b.

  The support frame 19b has a rectangular shape long in the left and right direction, and is inserted into the arrangement hole 18b and the opening 17b. The two heaters 19a are supported by the support frame 19b on the front side of the ventilation portion 18. As shown in FIG. 4, the two heaters 19a are arranged side by side. A central axis of rotation P of the rotary fan 12 is disposed between the two heaters 19a. The rotation center axis P side portion of the heater 19a is connected to the support frame 19b.

  In other words, the connecting portion of the heater 19a with the support frame 19b is disposed on the rotation center axis P side. The connecting portion of the heater 19a does not generate heat, and the opposite side portion of the connecting portion of the heater 19a generates heat. The heater 19a is disposed in the lower portion of the support frame 19b, in other words, at the stand 1 side portion of the support frame 19b. The heater cover 19c has a rectangular shape which is long in the left and right, and includes a plurality of lattice-like holes penetrating in the front and back direction. The heater cover 19c covers the front portions of the two heaters 19a. As the heater 19a, for example, a PTC heater (Positive Temperature Coefficient heater) may be mentioned. In addition, three or more heaters 19a may be provided.

  FIG. 9 is a front view of the fan with the front frame 21, the safety fence 20 and the vent 18 omitted when the heater 19a is in the off state, and FIG. 10 is a circled portion shown by A in FIG. It is an enlarged view.

  As shown in FIG. 9, a through hole 16b is formed in the above-described annular plate 16a. The through hole 16b is disposed inside the recess 17g. As shown in FIG. 10, a switch 25 is disposed on the rear side of the annular plate 16a, and the switch 25 projects forward from the through hole 16b. The switch 25 is a push switch.

  The annular plate 16a is provided with a wall body 16c having a first portion 16c1 extending in the circumferential direction and a second portion 16c2 protruding radially from the right end of the first portion. The wall 16 c protrudes forward, and the protruding end is disposed on the front side of the shutter 17. In the radial direction, the first portion 16c1 is located outside the through hole 16b. The second portion 16c2 is located on the right side of the through hole 16b.

  As shown in FIG. 10, the switch 25 is disposed inside the recess 17g. In this case, the closing portion 17e is disposed behind the boundary 18d, and the first vent 18c is open. A signal indicating that the first vent 18 c is open is input from the switch 25 to the control unit 90, and the control unit 90 turns the heater 19 a off. When the control unit 90 drives the motor 11, the air is blown forward. The control unit 90 rotates the rotary fan 12 at the first rotation speed to execute the air blowing. The control unit 90 executes the air blowing with the first air volume.

  11 is a front view of the fan with the front frame 21, the safety fence 20, the heater cover 19c, and the ventilation portion 18 omitted when the heater 19a is on, and FIG. 12 is a circle shown by B in FIG. It is an enlarged view of the enclosed part.

  When the user operates the handle 17 h to rotate the shutter 17 clockwise in a front view, the left edge of the recess 17 g abuts on the second portion 16 c 2. In this case, the closing portion 17e is disposed on the rear side of the first vent 18c and closes the first vent 18c. The opening 17b is disposed behind the placement hole 18b, and the placement hole 18b is not closed. The arrangement hole 18 b and the opening 17 b are communicated in the front-rear direction.

  Further, the through hole 16b is closed by the flange 17f, and the switch 25 is pushed by the flange 17f. A signal indicating that the first vent 18 c is closed is input from the switch 25 to the control unit 90, and the control unit 90 turns on the heater 19 a.

  When the control unit 90 drives the motor 11, the air is blown forward. The control unit 90 rotates the rotary fan 12 at a second rotation speed that is lower than the first rotation speed to execute air blowing. The control unit 90 executes the blowing at a second air volume smaller than the first air volume. Since the first vent 18 c is closed, the wind is concentrated on the placement hole 18 b and the opening 17 b and concentrated on the heater unit 19. The wind is heated by the heater unit 19, and the warm air is sent out from the safety fence 20.

  FIG. 13 is a right side cross-sectional view in which the configuration in the vicinity of the rotary shaft 7 is cut in the case where the posture of the housing portion 30 is a forward lean posture. As shown in FIG. 13, on the left side surface of the right end portion of the inner frame 6, an engaged portion 6 a that protrudes leftward and a spare stopper 6 b are provided. The locked portion 6a is disposed on the lower side, and the spare stopper 6b is disposed on the upper side. Further, on the right side surface of the left end portion of the inner frame 6, a locked portion 6a and a spare stopper 6b are provided.

  The circular rotary plate 8 is provided with a first locking portion 8a and a second locking portion 8b protruding in the radial direction. The first locking portion 8 a and the second locking portion 8 b are spaced apart in the circumferential direction with a phase difference of about 100 degrees around the axis of the rotary plate 8. The locked portion 6a is disposed between the first locking portion 8a and the second locking portion 8b. The first locking portion 8a is positioned forward of the locked portion 6a, and the second locking portion 8b is positioned rearward of the locked portion 6a. Also at the left end of the inner frame 6, a first locking portion 8a and a second locking portion 8b are provided.

  When the user tilts the housing portion 30 to the front side, the rotary shaft 7 and the rotary plate 8 rotate counterclockwise in a right side view, and the first locking portion 8a abuts on the locked portion 6a to rotate. It is stopped. At this time, the handle 17 h also abuts on the outer frame 5.

  FIG. 14 is a right side cross-sectional view in which the configuration in the vicinity of the rotary shaft 7 is cut in the case where the posture of the housing portion 30 is directed straight up. When the user tilts the housing portion 30 to the rear side, the rotary shaft 7 and the rotary plate 8 rotate clockwise as viewed from the right side, and the second locking portion 8b abuts on the locked portion 6a to rotate. It is stopped.

  FIG. 15 is a flowchart for explaining the driving process by the control unit 90. In the initial state, the motor 11 and the heater 19a are off. The control unit 90 stands by until the switch 2b is operated and the on signal of the motor 11 is input from the switch 2b (step S1: NO). When the on signal of the motor 11 is input from the switch 2b (step S1: YES), the control unit 90 determines whether a signal indicating that the first vent 18c is closed is input from the switch 25. (Step S2).

  When a signal indicating that the first vent hole 18c is closed is not input from the switch 25 (step S2: NO), that is, a signal indicating that the first vent hole 18c is open is input from the switch 25 If it does, the control unit 90 rotates the motor 11 to rotate the rotary fan 12 at the first rotational speed (step S3).

  When a signal indicating that the first vent hole 18c is closed is input from the switch 25 (step S2: YES), the control unit 90 outputs an on signal to the heater 19a (step S4), and rotates the motor 11 And the rotation fan 12 is rotated at the second rotation speed (step S5).

  When the process of rotating the rotary fan 12 at the first rotation speed or the second rotation speed is executed in step S3 or step S5, the control unit 90 operates the switch 2b, and the off signal of the motor 11 is input from the switch 2b. It is determined whether or not it is (step S6). When the off signal of the motor 11 is not input (step S6: NO), the control unit 90 returns the process to step S6.

  When the off signal of the motor 11 is input (step S6: YES), the control unit 90 turns off the motor 11, turns off the heater 19a (step S7), and ends the process.

  In the fan according to the embodiment, when the shutter 17 closes the first vent 18c, the arrangement hole 18b and the opening 17b communicate with each other. The wind can not flow through the first vent 18c, so it concentrates on the placement hole 18b and the opening 17b. Since the heater unit 19 is disposed in the arrangement hole 18 b, the wind is concentrated on the heater unit 19. The wind can be concentrated on the heater unit 19 with a simple configuration and can be reliably heated.

  The width of the closing portion 17e is short on the rotary fan 12 side (upstream side of the wind) and long on the opposite side of the rotary fan 12 (downstream side of the wind). Since the downstream width of the wind is long, when the closing portion 17e closes the first vent 18c, it can be closed reliably. When the closing portion 17e does not close the first vent hole 18c, the first vent hole 18c and the second vent hole 17d communicate with each other, and the closing portion 17e passes the first vent hole 18c and the first vent hole 18c in the air flow direction. 2) It is disposed at a position not overlapping the vent hole 17d. Since the width on the upstream side of the closing part 17e is narrow, it is possible to prevent the closing part 17e from obstructing the flow of wind toward the first vent 18c.

  When the shutter 17 closes the first vent 18 c, the heater unit 19 is turned on, and the air that has hit the heater unit 19 is heated. When the shutter 17 opens the first vent hole 18c, the heater unit 19 is turned off, and the air is not heated even when it hits the heater unit 19, and the user can be provided with cool air. Opening and closing switching of the shutter 17 can be made to correspond to switching between warm air and cool air.

  When the shutter 17 opens the first vent 18c, air blowing is performed with the first air volume, and when the shutter 17 closes the first air vent 18c, air blowing is performed with the second air volume smaller than the first air volume. To be executed. When the shutter 17 closes the first vent hole 18c, the amount of air becomes smaller, and the air is heated to a higher temperature and supplied to the user as compared with the case where the amount of air does not become smaller. On the other hand, when the shutter 17 opens the first vent hole 18c, the air volume becomes large, the user can be supplied with a large air volume, and the user can provide a cool environment.

  In addition, when the first locking portion 8a or the second locking portion 8b abuts on the locked portion 6a, it is possible to prevent the accommodation portion 30 from rotating too much. Further, since the handle 17h of the shutter 17 abuts on the support portion 4, it also functions as a stopper.

  Further, a connection portion between the two heaters 19 a and the support frame 19 b is disposed on the rotation center axis P side of the rotary fan 12. The amount of wind in the vicinity of the rotation center axis P is smaller than the amount of wind at a location away from the rotation center axis P. Since the connection portion of the heater 19a does not generate heat, the heat generation portion of the heater 19a is disposed at a position away from the rotation center axis P, that is, a portion with a large air volume, by arranging the connection portion on the rotation center axis P side. Can be heated efficiently.

  Further, since the heater 19a is disposed on the side of the stand 1, in other words, on the lower side, warm air can easily reach the floor surface.

  The switch 25 is a push switch, but is not limited thereto. For example, instead of the push switch, an open / close signal of the first vent 18 may be input to the control unit 90 using an optical sensor or an ultrasonic sensor or the like.

  It should be understood that the embodiments disclosed herein are illustrative in all respects and not restrictive. The technical features described in each embodiment can be combined with each other, and the scope of the present invention is intended to include all modifications within the scope of the claims, and the scope equivalent to the scope of the claims. Be done.

DESCRIPTION OF SYMBOLS 1 stand 4 support part 6a to-be-locked part 8a 1st latching | locking part 8b 2nd latching | locking part 12 rotation fan 17 shutter 17b Opening 17d 2nd ventilation hole 17e 2nd ventilation part 17h handle 18 ventilation part 18b arrangement hole 18c 1st ventilation hole 19 heater unit (heat source)
19a heater 19b support frame 19c heater cover 25 switch (detection unit)
30 accommodation unit 90 control unit P central axis of rotation

Claims (8)

With a rotating fan,
A heat source for heating the gas delivered by the rotating fan;
A disposing hole for disposing the heat source and a vent having a first vent through which a gas flows;
A movable shutter having an opening corresponding to the arrangement hole and opening and closing the first vent;
The fan, wherein the arrangement hole and the first vent communicate with each other when the shutter closes the first vent. The shutter and the rotating fan face each other,
The shutter has a plurality of second vents through which gas flows.
Between the two adjacent second vents, there is provided a closure projecting towards the rotary fan and closing the first vent.
2. The fan according to claim 1, wherein a width of the closed portion on the side of the rotary fan is shorter than a width on the opposite side of the rotary fan in a direction intersecting the projecting direction of the closed portion. A detection unit that detects the opening and closing of the shutter;
A control unit to which the signal of the detection unit is input;
When the detection unit detects that the shutter is closed, the control unit turns on the heat source,
The fan according to claim 2, wherein when the detection unit detects the opening of the shutter, the control unit turns off the heat source. When the detection unit detects that the shutter is closed, the control unit reduces the rotational speed of the rotary fan,
The fan according to claim 3, wherein when the detection unit detects the opening of the shutter, the control unit increases a rotational speed of the rotary fan. An accommodating portion that accommodates the rotary fan and is rotatable about an axis intersecting with the rotational axis of the rotary fan;
A support portion rotatably supporting the storage portion;
A locking portion provided in the housing portion for stopping rotation of the housing portion;
The electric fan according to any one of claims 1 to 4, further comprising: a locked portion provided on the support portion and configured to receive the locking portion. The shutter is provided with a handle,
The fan according to claim 5, wherein the handle can be in contact with the support when the housing rotates in one direction. The heat source comprises a plurality of heaters,
A support frame for supporting the plurality of heaters;
The plurality of heaters are disposed around a rotation center axis of the rotation fan,
The fan according to any one of claims 1 to 6, wherein the rotation center axis side portion of the heater is connected to the support frame. Equipped with a stand
The fan according to claim 7, wherein the heater is disposed on the side of the stand.

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