JP2013217293A - Air blower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air blower constructed such that charged particles can be radiated with little adverse effect on the blowing function, while ensuring safety.SOLUTION: A fan 4 connected to an output shaft 33a of a motor 33 is rotationally driven by the motor 33, thereby blowing air. The motor 33 is housed in a motor housing part 3. A handle 2 is vertically mounted on the outer circumferential surface of the motor housing part 3. A flow channel 25 that guides air is provided in the middle part of the handle 2, and an ion generator 9, which generates positive and negative ions to be emitted in the flow channel 25, is mounted inside the base end of the handle 2.

Description

  The present invention relates to a blower configured to dissipate charged particles so as to be air-cleaned.

2. Description of the Related Art Conventionally, in a blower such as a fan, a blower to which various functions are added in addition to a blower function of sending out a wind having a desired flow rate and direction has been proposed.

  The blower disclosed in Patent Document 1 has a configuration in which a negative ion generator that generates negative ions as charged particles is simply attached to the blower. For example, by providing a negative ion generator in front of or behind the impeller of a fan that is easy to carry as a blower, a cool wind feeling can be easily obtained, and beneficial physiological effects such as refreshing with negative ions can be obtained. Can be obtained simultaneously.

As a method for generating charged particles, positive and negative ions in which water molecules such as H ⁺ (H ₂ O) _m and O ₂ ⁻ (H ₂ O) _n are aggregated are generated by discharging in air. The method of making it known is known. Here, m and n are arbitrary natural numbers. As another method for generating charged particles, mist-shaped charged water particles (hereinafter referred to as charged water particles) are generated by applying a high voltage to water collected by condensation on a cooled electrode. There is also a method of making it. Charged particles such as ions in which water molecules are aggregated and charged water particles have an effect of purifying air, for example, inactivating bacteria in the air.

Japanese Patent Laid-Open No. 09-245935

  However, in the conventional blower described in Patent Document 1, the negative ion generator generates a negative ion by applying a negative high voltage to the discharge electrode to generate negative ions, so it is attached to the outer surface of the blower. In some cases, there is a risk that an infant or the like may touch it, and there is a problem in safety. Further, when the negative ion generator is arranged in front of the impeller, there is a problem in that the air flow to be blown is disturbed by the outer shape of the negative ion generator, and the air blowing function is adversely affected.

  The present invention has been made in view of such circumstances, and the object of the present invention is to reduce the adverse effect on the air blowing function and to dissipate charged particles while ensuring safety. It is to provide a blower.

  A blower according to the present invention is a blower that blows air by an impeller connected to an output shaft of a motor. The blower is erected on a motor housing portion that houses the motor and an outer surface of the motor housing portion. A handle part having a flow path for flowing air; and a charged particle generator that is built in a proximal end portion of the handle part and generates charged particles discharged to the flow path. And

  In the present invention, the impeller connected to the output shaft of the motor is rotationally driven by the motor to blow air. A motor is accommodated in the motor accommodating portion, and a handle portion is erected on the outer surface of the motor accommodating portion. There is a flow passage that allows air to flow in the middle of the handle, and a charged particle generator that generates charged particles that are discharged into the flow passage is built in the base end of the handle so that it can be charged externally. Touching the particle generator is prevented. Further, when the impeller blows air in the direction opposite to the motor housing portion side, the handle portion is on the side opposite to the air blowing direction of the impeller, so that the influence of the impeller on the air blowing function is suppressed.

  In the blower according to the present invention, a ventilation cover is disposed in the opening of the flow path, and the charged particle generator is opposed to the discharge electrode exposed in the flow path, and the discharge electrode, and It has an induction electrode to which a high voltage is applied between the discharge electrodes.

  In the present invention, a ventilation cover is disposed at the opening of the flow path, and the charged particle generator is exposed to the discharge electrode exposed to the flow path, and is opposed to the discharge electrode. And an induction electrode to which a high voltage is applied. Since the discharge electrode is exposed in the flow path, the charged particles generated in the vicinity of the discharge electrode are easily carried on the airflow in the flow path, and the charged particles can be dissipated more effectively. Since the ventilation cover is arranged at the opening of the flow path, even if the discharge electrode to which a high voltage is applied to the induction electrode is exposed to the flow path, it is prevented from touching the discharge electrode from the outside. Is done.

  The blower according to the present invention is characterized in that the handle portion is composed of two halves overlapping in the midway portion in the output shaft direction, and the charged particle generator is sandwiched between the two halves. .

  In the present invention, the handle part is composed of two halves overlapping in the middle of the output axis direction, and the charged particle generator is sandwiched between the two halves, so that the charged particle generator can be easily attached. is there.

  According to the present invention, the impeller connected to the output shaft of the motor is rotationally driven by the motor to blow air. A motor is accommodated in the motor accommodating portion, and a handle portion is erected on the outer surface of the motor accommodating portion. A flow path that allows air to flow parallel to the output shaft is provided in the middle of the handle, and a charged particle generator that generates charged particles that are discharged to the flow path is built in the proximal end of the handle. . For this reason, it can prevent that a charged particle generator is touched from the outside, and can ensure safety.

It is a perspective view which shows the external appearance of the front side of the electric fan which concerns on Embodiment 1. FIG. It is a perspective view which shows the external appearance of the back side of the electric fan which concerns on Embodiment 1. FIG. 2 is a side view of the electric fan according to Embodiment 1. FIG. It is a perspective view from the back side which shows the inside of a motor accommodating part. It is a typical sectional side view around a motor accommodating part. It is an external appearance perspective view of an ion generator. It is an electric circuit diagram of an ion generator. It is a block diagram which shows the control system of an electric fan.

Hereinafter, the present invention will be described in detail by taking a fan as an example of a blower based on the drawings showing the embodiments.
(Embodiment 1)
FIG. 1 is a perspective view showing the external appearance of the front side of the electric fan 1 according to Embodiment 1, FIG. 2 is a perspective view showing the external appearance of the rear side of the electric fan 1 according to Embodiment 1, and FIG. 1 is a side view of the electric fan 1 according to FIG. In the following description, up and down, left and right, and front and rear indicated by arrows in the figure are used.

  The electric fan 1 includes an electric fan main body (blower main body) 10, a power cord 13, a remote controller (not shown), and the like. The electric fan body 10 includes a base 11, a support 12, a motor housing 3, a fan (impeller) 4, a fan cover (impeller cover) 7, a handle 2 and an ion generator 9 (charged particle generator, FIG. 4). Etc.). The base 11 has a disk shape and is placed on the floor surface. An operation panel 11a including various operation keys for a user to operate the electric fan 1 is provided on the upper surface front side of the base 11, and a support column 12 is erected at a position slightly rearward of the center. The fan 4, the fan cover 7, the handle portion 2, and the like are attached to the motor housing portion 3. The electric fan main body 10 is formed by connecting the motor housing portion 3 to the upper portion of a support column 12 erected on a base 11. The power cord 13 has a power plug that can be attached to and detached from a commercial power outlet. A DC input receptacle is provided on the peripheral edge of the base 11, and the power cord 13 is provided with a plug and an AC adapter that can be attached to and detached from the receptacle. After the AC from the commercial power source is converted to DC, the electric fan main body 10 may be provided.

  FIG. 4 is a perspective view from the back side showing the inside of the motor housing 3, and FIG. 5 is a schematic sectional side view of the periphery of the motor housing 3. The motor housing 3 includes a motor 33 having a substantially cylindrical shape, a casing 30 for housing the motor 33, and the like. The motor 33 has an output shaft 33a protruding from one side, and the fan 4 is attached to the tip of the output shaft 33a. In addition to the motor 33, a relay circuit unit 35 that relays a power line and a control signal line to the motor 33 and the like is disposed inside the casing 30. The casing 30 has a bottomed cylindrical shape with the axial direction of the output shaft 33a as the axial direction, and the handle portion 2 is formed on the upper portion. The casing 30 includes a casing front part 31 and a casing rear part 32 that are overlapped in the middle part in the axial direction.

  The casing front body 31 has a cylindrical shape having a bottom on the front side. An engagement cylinder 31a is provided at the front bottom of the casing front body 31 so as to be concentric with the output shaft 33a. A male screw is formed on the outer peripheral surface of the engagement cylinder 31 a and is screwed into a female screw formed on the inner peripheral surface of the nut 34. A handle part front part 21 to be described later is integrally formed on the upper part of the outer peripheral surface of the casing front part 31. The casing front part 31 has a motor 33 screwed to the front bottom part, and the casing rear part 32 is screwed by fitting the front end part of the casing rear part 32 to the rear end part. Therefore, the casing rear part 32 fitted to the casing front part 31 is removed by removing the screw, and the motor 33 is exposed.

  The casing rear part 32 has a cylindrical shape having a bottom on the rear side, and a handle part rear part 22 to be described later is formed integrally with the upper part of the outer peripheral surface. The shape of the casing 30 is not limited to the above-described bottomed cylindrical shape, and may be a bottomed rectangular tube shape. Further, the axial direction of the cylindrical casing 30 may be an axial direction intersecting the output shaft 33a. In this case, the handle portion 2 is an upper outer surface of the casing 30 and is an intermediate portion in the axial direction of the output shaft 33a. It only has to be erected.

  The fan 4 is a propeller fan including a cylindrical boss portion 42 fixed to the output shaft 33a of the motor 33, and a plurality of blades 41 provided on the boss portion 42 so as to be equally distributed in the circumferential direction. The fan 4 rotates integrally with the rotation of the output shaft 33 a of the motor 33. The fan 4 is provided with a breathable fan cover 7 that covers the periphery of the fan 4. The fan cover 7 includes a fan cover front part 71 covering the front side of the fan 4 to the outer peripheral edge part, and a fan cover rear part covering the fan 4 from the rear side to the outer peripheral part and fitting with the fan cover front part 71. A body 72 is provided.

  The fan cover rear part 72 has a deep dish shape, and a cylindrical fitting part 72b is formed forward from an annular bottom part 72a. The fitting portion 72b is coaxial with the output shaft 33a, and the inner peripheral surface of the fitting portion 72b is fitted to the outer circumferential surface of the front end portion 31b of the casing front part 31. By this fitting, the fan cover rear part is separated. The radial position of 72 is determined. An annular flange 72c is provided at the front end of the fitting portion 72b. By tightening the nut 34, the fan cover rear part 72 is fixed in a state where the flange 72 c is sandwiched between the nut 34 and the front bottom part of the casing front part 31.

  The side surface portion 72d of the fan cover rear body 72 has a wide conical shape on the front side, is continuous from the outer peripheral edge of the bottom portion 72a to the outer peripheral ring 72e, and covers the rear side portion and the outer peripheral edge portion of the fan 4. The ridgeline of the side surface portion 72d has an inwardly convex shape on the bottom 72a side, an outwardly convex shape on the outer peripheral ring 72e side, and forms a smoothly connected curve in the middle. The fan cover rear part 72 has a tapered portion T facing a handle portion 2 described later, and the outer peripheral side of the tapered portion T is inclined toward the fan 4 side. The fan cover front part 71 is locked by fitting the outer ring 71 e to the outer ring 72 e of the fan cover rear part 72 and covers the front side of the fan 4.

  The handle portion 2 has a hollow truncated pyramid shape, a through hole 23 is formed at the tip, and an upper edge portion of the through hole 23 is a handle 24. The handle 24 preferably has a shape and dimensions that can be easily held by the user. In this embodiment, the handle 24 has a width of about 10 to 30 mm, a width of about 80 to 100 mm, and a height of about 5 to 15 mm. In addition, the through-hole 23 has an opening height of about 15 to 30 mm and a lateral width of about 80 to 100 mm so that a user's hand can easily enter. In addition, in the middle portion of the handle portion 2, a flow passage 25 penetrating in the front and rear direction is formed. In addition, the taper part T of the above-mentioned fan cover rear part 72 is facing from the middle part of the handle part 2 (a little lower in the vertical direction) to the handle 24 at the tip part. Further, the handle portion 2 may be configured to be in contact with the outer surface of the bottom portion 72a of the fan cover rear part 72 at the front surface of the base end portion.

  The handle part 2 includes a handle part front part 21 integrally formed with the casing front part 31 and a handle part rear part 22 integrally formed with the casing rear part 32. The handle part front body 21 has a rectangular plate shape and forms the front side wall of the handle part 2. The handle part front body 21 is disposed at a position near the rear end of the casing front body 31, and is disposed at a position slightly in front of the axial direction in the casing 30 as a whole. The handle rear part 22 has a hollow truncated pyramid shape and forms a rear side wall, left and right side walls, and an upper side wall of the handle part 2. As described above, the left and right side walls formed by the handle rear part 22 at the periphery of the handle part front part 21 when the front end part of the casing rear part 32 is fitted to the rear end part of the casing front part 31. And the front edge of the upper sidewall overlap. The handle 24 is integrated with the upper edge of the through-hole 23 formed in the handle rear part 22 overlapping the upper edge of the through-hole 23 formed in the handle front part 21. Is formed.

  A front cover portion 21a is formed in the opening on the front side of the flow path 25, and a rear cover portion 22a is formed in the opening on the rear side. The front cover portion 21a has a plurality of vertical rails and horizontal rails, and a ventilation hole is formed between the rails and the rails. The rear cover portion 22a has a plurality of horizontal crosspieces, and a vent hole is formed between the crosspiece and the crosspiece like the front cover portion 21a. The front cover portion 21a and the rear cover portion 22a are configured such that fingers do not enter the flow path 25 because the distance between the crosspieces is about 5 mm. In addition, the arrangement | positioning and space | interval of a crosspiece are not restricted to the above-mentioned thing.

  The handle portion 2 includes an ion generator 9. The ion generator 9 is sandwiched between an inner wall surface on the proximal end side of the handle front segment 21 and a front end surface of the lower side wall 22 b of the flow passage 25 formed in the handle rear segment 22. . The ion generator 9 is disposed such that an electrode portion described later is exposed to the flow path 25. A cable 9 a that supplies power and a control signal to the ion generator 9 is connected from the inside of the proximal end portion of the handle portion 2 to the relay circuit portion 35 in the casing 30.

  The handle portion 2 is disposed at a substantially center of gravity in the horizontal direction of the electric fan body 10. Specifically, the center of gravity position of the electric fan main body 10 in the front-rear direction is slightly in front of the support column 12, and the handle portion 2 is positioned vertically above the position of the center of gravity in the front-rear direction. Further, the position of the center of gravity in the left-right direction is substantially located on the output shaft 33a of the motor 33, and the handle portion 2 is formed symmetrically on a vertical plane including the output shaft 33a.

  FIG. 6 is an external perspective view of the ion generator 9. The ion generator 9 includes electrode portions 91 and 92, an ion generator main body 93, and an electrode cover 94. The ion generator main body 93 is a box having a substantially rectangular parallelepiped shape and incorporates an electric circuit. The electrode portion 91 includes a needle-like discharge electrode 91a and an induction electrode 91b facing the discharge electrode 91a, and the electrode portion 92 is similarly a needle-like discharge electrode 92a and an induction electrode facing the discharge electrode 92a. 92b. The electrode portions 91 and 92 are respectively provided with discharge electrodes 91a and 92a concentrically with the through holes provided inside the two through holes provided on one side surface of the ion generator main body 93. The electrode cover 94 has a rectangular plate shape, is bent at both ends in the longitudinal direction, and is attached to the ion generator main body 93 so as to cover the tips of the needle-like discharge electrodes 91a and 92a. A high voltage is applied between the discharge electrode 91a and the induction electrode 91b and between the discharge electrode 92a and the induction electrode 92b by an electric circuit built in the main body of the ion generator 93.

  FIG. 7 is an electric circuit diagram of the ion generator 9. The ion generator 9 includes a booster circuit 90a that boosts an applied voltage between the terminal T1 and the terminal T2 to which an AC voltage of 100 V is supplied, and a voltage application circuit 90b that applies the voltage boosted by the booster circuit 90a to the electrode portions 91 and 92. And. The electric circuit of the ion generator 9 applies the high voltage boosted by the booster circuit 90a between the discharge electrode 91a and the induction electrode 91b and between the discharge electrode 92a and the induction electrode 92b by the voltage application circuit 90b. By doing so, a discharge is generated between the electrodes.

In the electrode portions 91 and 92, water in the air is ionized by discharge, so that H ⁺ (H ₂ O) _m (m is an arbitrary natural number) as positive ions and O ₂ ⁻ (H ₂ as negative ions). O) _n (n is an arbitrary natural number). If both ions are released into the air, they will attach to the surface of airborne bacteria and viruses. These chemically react to generate hydrogen peroxide (H ₂ O ₂ ) and / or hydroxyl radicals (.OH), which are active species, to sterilize or inactivate airborne bacteria and airborne viruses. Can be

  As described above, the ion generator 9 is formed between the inner wall surface on the proximal end side of the handle part front body 21 and the front side end surface of the lower side wall 22b of the passage 25 formed in the handle part rear body 22. Is sandwiched between. Since a high voltage is applied to the discharge electrodes 91a and 92a of the ion generator 9, it is required to take a predetermined distance from the portion constituting the outer shell for the safety of handling. Specifically, since the rear side wall of the handle part rear part 22 is inclined toward the fan 4 as it goes upward, the middle part of the rear cover part 22a and the middle part of the front cover part 21a are the discharge electrodes 91a and 92a. Although the fan cover rear part 72 is located in front of the middle part of the front cover part 21a, the front side is not a problem. According to the present embodiment, the distance between the discharge electrodes 91a and 92a and the rear surface of the middle part of the rear cover portion 22a is set to 30 mm or more in consideration of the safety distance required for the high-voltage equipment. This distance is better for safety, but if it is unnecessarily large, the handle will be enlarged, and the fan 1 itself will be enlarged and difficult to handle, so it should not be too large based on the safety standards of the industrial association. It is good to be determined.

  In the discharge electrodes 91a and 92a, the upper wall of the flow passage 25 is present on the upper side in the direction other than the front cover portion 21a and the rear cover portion 22a, and the casing front body 31 and the casing rear body 32 are on the lower side. There is no safety problem because it is covered by the presence of However, since the motor 33 is located below the ion generator 9, there is a possibility that ions generated by the ion generator 9 may be absorbed by the metal part constituting the motor 33. A partition plate should be placed between the two.

  FIG. 8 is a block diagram showing a control system of the electric fan 1. The base 11 incorporates a control device 8 using a microcomputer or the like, and controls the operation of the electric fan 1. The operation panel 11a provided on the base 11 includes an operation switch (hereinafter referred to as operation SW) 81 for turning on and off the electric power of the fan 1, and an operation mode changeover switch (hereinafter referred to as operation mode changeover switch) for selecting whether or not the ion generator 9 is required. An operation mode switching SW) 82, an air volume switching switch (hereinafter referred to as air volume switching SW) 83 for selecting an air volume, and a timer switch (hereinafter referred to as timer SW) 84 for selecting a timer operation are provided. A signal is received and given to the control device 8. Further, the operation panel 11a is provided with a display means 85 for displaying the operation result and a notifying means 86 for notifying the user of the operation result.

  In the electric fan 1 configured as described above, when the operation SW 81 is turned on, electric power is supplied to the motor 33 and the output shaft 33a of the motor 33 rotates. With the rotation of the output shaft 33a, the fan 4 fixed to the output shaft 33a rotates, sucks air through the fan cover rear part 72, and blows out air through the fan cover front part 71, and the air blowing operation is performed. . When the air volume switch SW83 is pressed, the control device 8 performs control to switch the rotation speed of the motor 33, and the air volume is switched to, for example, “strong wind”, “cool wind”, or “weak wind”. Further, when the timer SW 84 is pressed, the control device 8 starts timing by the time measuring means 8a to stop the operation after a certain time, and stops the air blowing operation when the certain time is reached.

  When the ion generation operation is selected by the operation mode switching SW 82, power is also supplied to the ion generator 9, and positive ions and negative ions are generated. The generated positive ions and negative ions are discharged to the flow path 25 and are sent to the fan 4 side by riding on the air flow (air flow from the rear to the front) generated in the flow path 25 by the rotation of the fan 4. The air is sucked through the rear body 72, blown forward through the front body 71 of the fan cover, and diffused into the space in front of the fan 1.

  In the present embodiment, a so-called propeller fan is used as a fan blade. The propeller fan generates a spiral air flow around the rotation axis of the fan 4 corresponding to the number of blades constituting the propeller fan. The spiral airflow has the property of flowing around the rotation axis of the fan 4 while flowing in the downstream direction and traveling while diffusing air outward in the radial direction.

  For this reason, as shown by the white arrow in FIG. 5, the ions generated by the ion generator 9 are sucked by the fan 4 on the airflow flowing from the rear to the front through the passage 25 and then the fan 4. Ion is divided into an ion that travels almost straight on the airflow A near the rotation axis and reaches the front, and an ion that diffuses indoors on the airflow B far from the rotation axis.

  The user who operates from the front side of the fan 1 is naturally located in front of the fan 1. In this embodiment, in order to adjust the amount of ions that should be directly delivered to the user located in front and the amount of ions that diffuse widely in the room and improve the indoor environment to a favorable balance, the ion generator 9 The radial position (position where ions are generated) of the discharge electrodes 91a and 92a is set to a position half the length in the radial direction of the blade 41 of the fan 4 (substantially intermediate position between the base end portion and the tip end portion). It is supposed to be. Note that the radial positions of the discharge electrodes 91a and 92a of the ion generator 9 may be appropriately determined based on the airflow generated by the blades 41, and are not limited to the above-described positions.

  The positive ions and negative ions are dissipated in the space in front of the electric fan 1, thereby killing or inactivating viruses such as influenza viruses and pathogens floating in the air, and reducing the number of viruses and pathogens. In the present embodiment, the ion generator 9 generates positive ions and negative ions, but may be an ion generator that generates only negative ions. In this case, conventionally, a negative wind can provide a cool breeze and a beneficial physiological effect such as refreshing.

  Moreover, the user can carry the electric fan 1 by inserting and lifting a fingertip to the handle 24 of the electric fan 1 in the state etc. which the ventilation driving | operation has stopped. Since the handle portion 2 is formed at a substantially center of gravity position in the horizontal direction (front and rear and left and right directions), the electric fan 1 is lifted while maintaining substantially the same posture as placed on the floor surface. The handle 24 is large and can be firmly held in the user's hand even if it is swung back and forth during transportation.

  As described above, according to the present embodiment, the fan 4 connected to the output shaft 33a of the motor 33 is rotationally driven by the motor 33 to blow air. The motor housing 3 is housed in the motor housing 3, and the fan cover rear body 72 is formed in a bowl shape covering the outer peripheral edge of the fan 4 and the side on the motor 33 side at the end of the motor housing 3 on the output shaft 33 a side. Is fixed. The handle portion 2 is erected on the outer surface of the motor housing portion 3 in the middle of the output shaft 33a in the axial direction. The fan cover rear part 72 has a tapered portion T that faces the handle part 2 and the outer peripheral side is inclined toward the fan 4, so that a sufficient gap is secured between the handle part 2 and the fan cover rear part 72. The handle portion 2 can be easily held, the electric fan 1 can be easily carried, and convenience can be improved.

  Moreover, according to this Embodiment, the fan cover rear part 72 has the cylindrical fitting part 72b fitted to the outer peripheral surface of the front side edge part 31b of the casing front part 31 of the motor accommodating part 3. FIG. Thus, when the fan cover rear part 72 is attached to the motor housing part 3, the radial position is determined by fitting the fitting part 72b to the outer peripheral surface of the front end part 31b of the casing front part 31. Becomes easier.

  Further, according to the present embodiment, the fan cover rear part 72 may be in contact with the handle part 2, and in this case, the fan cover rear part 72 is biased and supported by the handle part 2. The vibration of the fan cover 7 due to the vibration generated when the fan 4 is rotated by 33 is suppressed.

  Moreover, according to this Embodiment, the handle part 2 has the flow path 25 which flows air in the middle part, and produces | generates the positive and negative ion discharge | released by the ion generator 9 to the flow path 25 Let Positive and negative ions are sucked and blown out by the fan 4 together with the air flowing through the flow path 25. Air is purified by the positive and negative ions blown from the fan 4.

  Further, according to the present embodiment, the handle portion 2 is formed integrally with the casing 30 of the motor housing portion 3. Specifically, the handle part 2 includes a handle part front part 21 integrally formed with the casing front part 31 and a handle part rear part 22 formed integrally with the casing rear part 32. ing. For this reason, while the coupling | bonding of the handle part 2 and the casing 30 becomes strong, since a number of parts and an assembly man-hour reduce, manufacture becomes easy.

  Moreover, according to this Embodiment, the fan main body 10 is comprised by connecting the motor accommodating part 3 to the upper part of the support | pillar 12 standingly arranged by the base 11 with which the floor surface should be mounted, and a fan main body is comprised. The handle portion 2 is arranged at approximately the center of gravity in the 10 horizontal directions (front and rear and left and right directions). Thereby, when the state of the electric fan main body 10 is changed from the state in which the electric fan main body 10 is placed on the floor to the state in which the electric fan main body 10 is lifted by grasping the handle portion 2, the posture of the electric fan main body 10 does not change, so that the carrying becomes easy.

  Further, according to the present embodiment, the handle portion 2 is erected on the outer surface of the motor housing portion 3. A flow path 25 through which air flows is provided in the middle of the handle portion 2, and an ion generator 9 that generates positive and negative ions discharged to the flow path 25 is provided at the base end portion of the handle portion 2. is there. Thereby, it is prevented that the ion generator 9 is touched from the outside, and safety can be ensured. Moreover, the handle part 2 is located behind the fan 4 and has little influence on the forward blowing function. Further, since the heat generated by the ion generator 9 rises and is exhausted by the air flowing through the passage 25, the temperature rise of the ion generator 9 can be suppressed. The cable 9a for supplying power and control signals to the ion generator 9 is connected from the inside of the proximal end portion of the handle portion 2 to the relay circuit portion 35 in the casing 30, so that the cable wiring of the ion generator 9 is connected. It can be simplified.

  Further, according to the present embodiment, the front cover portion 21 a and the rear cover portion 22 a are arranged in the opening of the flow passage 25, and the ion generator 9 is exposed to the discharge flow passage 25. , 92a, and induction electrodes 91b, 92b that face the discharge electrodes 91a, 92a and to which a high voltage is applied between the discharge electrodes 91a, 92a. Since the discharge electrodes 91a and 92a are exposed in the flow path 25, positive and negative ions generated in the vicinity of the discharge electrodes 91a and 92a are easily carried on the airflow in the flow path 25, and are more effective. Can dissipate positive and negative ions. Since the front cover portion 21 a and the rear cover portion 22 a are arranged at the opening of the flow passage 25, the discharge electrodes 91 a and 92 a to which a high voltage is applied between the induction electrodes 91 b and 92 b are connected to the flow passage 25. Even if it is exposed, it is prevented from touching the discharge electrodes 91a and 92a from the outside.

  Moreover, according to this Embodiment, the handle part 2 consists of two divisions which overlap in the middle part of the axial direction of the output shaft 33a. Specifically, the handle part 2 includes a handle part front part 21 integrally formed with the casing front part 31 and a handle part rear part 22 formed integrally with the casing rear part 32. ing. The ion generator 9 is sandwiched between an inner wall surface on the proximal end side of the handle front segment 21 and a front end surface of the lower side wall 22 b of the flow passage 25 formed in the handle rear segment 22. Therefore, the ion generator 9 can be easily attached.

  In the present embodiment, the form of generating ions in which water molecules are aggregated as charged particles has been shown. However, the present invention is not limited to this form, and the blower may generate charged particles such as charged water particles. Good.

  The present invention is not limited to the present embodiment, but covers the technical scope of the invention described in the claims and the equivalent scope thereof.

1 Fan (blower)
10 Fan body (Blower body)
11 base 12 support 2 handle part 21a front cover part (ventilation cover)
22a Rear cover (ventilation cover)
25 passage 3 motor housing part 33 motor 33a output shaft 4 fan (impeller)
7 Fan cover (impeller cover)
9 Ion generator (charged particle generator)
91a, 92a discharge electrode 91b, 92b induction electrode

Claims (3)

In a blower that blows with an impeller connected to an output shaft of a motor,
A motor housing for housing the motor;
A handle portion which is erected on the outer surface of the motor housing portion and has a flow path through which air flows in the middle portion;
A blower comprising: a charged particle generator that is built in a proximal end portion of the handle portion and generates charged particles that are discharged to the flow path. A ventilation cover is arranged at the opening of the flow path,
The charged particle generator includes a discharge electrode exposed in the flow path, and an induction electrode facing the discharge electrode to which a high voltage is applied between the discharge electrode and the discharge electrode. Item 1. The blower according to item 1. The handle part is composed of two halves overlapping in the middle of the output axis direction,
The blower according to claim 1 or 2, wherein the charged particle generator is sandwiched between the two halves.

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