WO2013176213A1

WO2013176213A1 - Air-blowing device, and charged particle delivery device

Info

Publication number: WO2013176213A1
Application number: PCT/JP2013/064334
Authority: WO
Inventors: 孝広花井; 白石　賢一; 岩城　伸浩
Original assignee: シャープ株式会社
Priority date: 2012-05-24
Filing date: 2013-05-23
Publication date: 2013-11-28
Also published as: CN203362551U

Abstract

The present invention turns on when an air-directing plate comes to a position where an air outlet opens, and turns off when the air-directing plate comes to a position where the air outlet closes. When a plug and an installation part come into contact with an installation surface, the plug and a terminal unit electrically connect with one another. A holding member for holding a charged particle generation element forms a portion of a duct by being adjacent to an exhaust port, and is provided so as to be able to be integrally detached from the case along with the charged particle generation element.

Description

Blower and charged particle delivery device

The present invention relates to a desktop blower and a charged particle delivery device.

Household electrical equipment includes various blower devices such as fans, ventilation fans, air purifiers, and air conditioners. Some electric fans and air purifiers are small and are intended to be used on a table.

Patent Document 1 describes an air purifier that is an example of a blower. This air purifier has an operation panel on the top front of the casing, on which a number of operation buttons including a power on / off button are arranged.

A conventional tabletop blower includes a housing in which a blower fan and a motor that rotates the blower fan are arranged. A suction port and a blower outlet are formed in the housing. When the blower fan is driven, air is sucked from the suction port, and air is blown from the blower port. In order to rotate the blower fan, it is necessary to supply electric power to the motor.

Power supply may be performed using a power cord. In that case, one end of the power cord is connected to a terminal portion provided in the blower, and the other end is connected to an external power source such as a commercial power source. By the way, as a connection method between the one end of the power cord and the terminal portion, a magnet method or an insertion method can be considered. In the magnet system, a magnet plug provided at one end of the power cord is detachably connected to a plug receiver provided in the blower (see Patent Document 2). In the insertion method, an insertion plug provided at one end of the power cord is detachably connected to a plug receiver provided in the blower.

Also, in order to sterilize indoors and remove odors, charged particle delivery devices, which are a type of blower, are often placed indoors. Examples of such charged particle delivery devices can be found in US Pat.

The air blower described in Patent Document 3 includes a casing having an inlet and an outlet, an air blowing fan disposed in the casing and covered with a casing having an inlet and an outlet, and an exhaust and an outlet. And an ion generating element (charged particle generating element) for generating ions (charged particles) in the duct. The ion generating element has a discharge electrode, and ions are generated by applying a voltage to the discharge electrode. When the blower fan and the ion generating element are driven, the airflow is circulated through the duct while entraining the ions and blown out from the outlet.

By the way, dust contained in the air is likely to accumulate in the duct, which is the air flow path. In particular, dust tends to accumulate around the discharge electrode of the ion generating element. Therefore, a filter facing the suction port may be arranged for the purpose of removing dust contained in the air. However, even if a filter is provided, it is difficult to remove all dust contained in the air, and it has not been possible to prevent dust from accumulating in the duct. Therefore, it is desirable to periodically clean the inside of the duct, particularly the inside of the duct near the ion generating element.

Further, the charged particle delivery device described in Patent Document 3 delivers ions as charged particles. The main body case has a built-in fan, and an ion generator, which is a charged particle generator, and an ion And a detector.

JP 2012-57887 A JP 2003-97830 A JP 2010-287321 A

As a first problem, a small air blower used on a table has a limited space for arranging operation buttons. In addition, only the ones that start and end are required to have a clean design with a small number of operation buttons.

As a second problem, in the magnet system, there is a problem that the magnet plug falls from the plug receptacle when a person or an object contacts the magnet plug. On the other hand, in the insertion method, dropout due to contact is unlikely to occur, but there is a problem that if the insertion plug is not firmly inserted into the plug receptacle, contact failure occurs and the blower does not operate normally.

As a third problem, in the ion generator of Patent Document 3, the housing case in which the ion generating element is housed can be attached and detached by removing the rear wall from the housing. However, since the duct is not arranged near the back wall, it is difficult to clean the inside of the duct near the ion generator.

As a fourth problem, a charged particle delivery device installed indoors as a single device generally has an air outlet formed on the upper surface in order to dissipate charged particles throughout the room. The air flow path extends in the vertical direction in order to guide the airflow generated by the fan to the outlet and to blow it upward. In the charged particle delivery device described in Patent Document 1, a constricted portion is formed in the middle of the air passage extending in the vertical direction, and the charged particle generator is disposed there. Therefore, the length of the air passage in the vertical direction is long. Therefore, the charged particle delivery device as a whole has a high height.

The present invention has been made in view of the above points, and a first object is to operate a power switch without being aware of the presence of the power switch in a small blower suitable for use on a tabletop. Is to provide a structure. The second object is to provide a blower that can easily prevent poor contact during use. A third object is to provide an air blower that can be easily cleaned in a duct near a charged particle generating element. A fourth object is to provide a charged particle delivery device that does not take a height and can be used on a desk, for example.

The blower according to the present invention includes a housing in which a suction port and an air outlet are formed, and an air flow that is sucked into the housing from the suction port and blown out of the housing from the air outlet. A blower fan disposed at the air outlet, a wind direction plate disposed at the air outlet and displaceable between a position where the air outlet is opened and a position where the air outlet is closed, and the air direction plate comes to a position where the air outlet is opened. And a power switch of the blower fan that is turned on when the airflow direction plate comes to a position for closing the air outlet.

In the air blower configured as described above, the air outlet is opened when the wind direction plate is displaced so as to jump out of the housing, and the air outlet is closed when the air direction plate is displaced so as to be pushed into the housing. Is preferred.

In the air blower configured as described above, it is preferable that the wind direction plate is attached to a slide body that is slidable with respect to the housing, and the power switch is turned on / off in conjunction with the slide of the slide body.

In the air blower configured as described above, an urging means for urging the slide body toward the outside of the housing, and a push-on / push-off method for retaining the slide body against the urging force of the urging means. Preferably locking means are provided.

In the air blower configured as described above, it is preferable that the urging force of the urging means is set so that the power switch is turned off when the air blower is installed with the air outlet facing down.

In the air blower configured as described above, it is preferable that the air outlet is formed on an upper surface of the casing.

In the air blower configured as described above, it is preferable that the air outlet has a circular shape and the wind direction plate has an umbrella shape.

The blower according to the present invention has a blower fan disposed in a housing having an inlet and an outlet, and the blower is installed on an installation surface on which an installation portion provided on one surface of the housing is in contact. A power cord that has a plug and supplies power; and a terminal portion that is provided on one surface of the housing and is detachably inserted and faces the installation surface, and the installation portion on the installation surface And when the said plug contact | abuts, the said plug and the said terminal part conduct | electrically_connect, It is characterized by the above-mentioned.

According to this configuration, when the installation part and the plug are in contact with the installation surface, the plug and the terminal part are electrically connected. The state where the installation part and the plug are not in contact with the installation surface is a state where the blower is installed on the installation surface in an unstable state. That is, since the plug and the terminal portion are electrically connected when the blower is stably installed on the installation surface, it is possible to easily grasp the conductive state between the plug and the terminal portion. Also, even if the plug is not fully inserted into the terminal part and the installation part and the plug are not in contact with the installation surface, the installation part and plug are applied to the installation surface by applying force to the housing. By making contact, the plug and the terminal portion are electrically connected. Therefore, the plug and the terminal portion can be easily conducted without directly touching the plug.

In the air blower configured as described above, a plate portion detachably attached to the housing is provided, the plug is inserted into the terminal portion through an insertion hole opened in the plate portion, and the plate portion is attached to and detached from the plug. It is desirable to form it detachably.

According to this configuration, the plug is connected to the terminal portion through the insertion hole that opens in the plate portion that is detachable from the housing. Further, since the plate portion is formed so as to be detachable by detaching the plug, in order to remove the plate portion from the housing, it is necessary to remove the plug from the terminal portion. That is, when the plate portion is removed, power is not supplied to the blower, and therefore, when the user removes the plate portion and cleans the inside of the housing, the user does not get an electric shock by touching various electronic components.

The blower configured as described above includes a charged particle generating element that generates charged particles, wherein the plate portion is detachable by detaching the plug, and the charged particle generating element is attached and detached when the plate portion is removed. It is desirable to be able to do it.

According to this configuration, since the charged particle generating element can be detached from the bottom surface of the housing when the plate portion is removed, the charged particle generating element can be easily replaced or cleaned.

In the air blower configured as described above, it is preferable that a filter facing the suction port is provided, the plate portion is formed so as to be detachable by detaching the plug, and the filter is detachable when the plate portion is removed.

According to this configuration, since the filter can be detached from the bottom surface of the housing when the plate portion is removed, the filter can be easily replaced or cleaned.

The blower according to the present invention includes a housing having an intake port and an air outlet, a blower fan disposed in the housing and covered with a casing having an intake port and an exhaust port, and the exhaust port and the air outlet. A blower comprising: a duct communicating with a charged particle generating element that generates charged particles in the duct; and a holding member that holds the charged particle generating element, wherein the holding member is adjacent to the exhaust port. And forming a part of the duct and being detachably arranged integrally with the charged particle generating element with respect to the casing.

According to this configuration, the holding member has a function of holding the charged particle generating element and also functions as a part of the duct. In other words, the holding member constitutes a duct near the charged particle generating element. The holding member is detachably disposed integrally with the charged particle generating element with respect to the housing. That is, since the duct in the vicinity of the charged particle generating element is detachable, the inside of the duct in the vicinity of the charged particle generating element can be easily cleaned. In addition, the charged particle generating element can be easily replaced and cleaned.

In the air blower configured as described above, it is preferable that a bottom plate of the housing is detachably provided, and the holding member can be attached and detached by removing the bottom plate.

According to this configuration, the holding member and the charged particle generating element can be detached from the bottom side.

In the air blower configured as described above, it is desirable to provide the exhaust port in the vicinity of the bottom plate.

According to this configuration, since the exhaust port is provided in the vicinity of the bottom plate, the vicinity of the exhaust port can be easily cleaned.

In the air blower configured as described above, it is desirable to form a bent portion that bends upward the airflow blown from the exhaust port in parallel to the bottom plate by the holding member.

According to this configuration, the direction of the air flow blown out from the exhaust port is converted upward by the bent portion, flows through the duct, and is blown out from the blow-out port. Therefore, the air blowing device can be easily cleaned and the blower device can blow out charged particles from the upper surface side of the housing.

In the air blower configured as described above, it is desirable that a connection terminal is provided on the upper surface of the charged particle generating element.

According to this configuration, the connection terminal is provided on the upper surface of the charged particle generating element held by the holding member that can be detached from the bottom surface side of the housing. Therefore, the weight of the charged particle generating element and the holding member is not applied to the connection terminal. As a result, failure such as damage or deformation of the connection terminal can be prevented.

The charged particle delivery device according to the present invention includes a housing, a suction port formed in the housing, a blowout port formed on an upper surface of the housing, and is sucked into the housing from the suction port, A blower fan disposed in the housing that forms an airflow blown out of the housing from an air outlet, and a charged particle generating element that discharges charged particles into the airflow from the blower fan, In the air passage leading to the outlet, there is formed a region in which the airflow blown from the blower fan is directed toward the air outlet and the dynamic pressure of the airflow is static, and the charged particles are generated in the region or behind the region. An element is arranged.

In the charged particle delivery device having the above-described configuration, it is preferable that the charged particle generating element is disposed in the region or immediately thereafter.

In the charged particle delivery device configured as described above, the region is preferably a bent portion formed in the air blowing path.

In the charged particle delivery device configured as described above, the outer peripheral side of the bent portion is a curved surface that gradually transitions from the blowing direction of the blower fan to the outlet, and the charged particles are disposed on the outer peripheral side of the bent portion. A generator element is preferably arranged.

In the charged particle delivery device having the above-described configuration, it is preferable that the charged particle generating element is disposed at a connection portion between the bent portion and a duct that communicates the bent portion with the air outlet.

In the charged particle delivery device having the above-described configuration, the charged particle generating element includes a positively charged particle generating unit and a negatively charged particle generating unit, and the positively charged particle generating unit and the negatively charged particle generating unit have a predetermined distance in the horizontal direction. It is preferable that they are spaced apart.

In the charged particle delivery device configured as described above, it is preferable that an airflow branching portion that distributes the airflow from the blower fan to the positively charged particle generating portion and the negatively charged particle generating portion is formed in the bent portion.

In the charged particle delivery device having the above-described configuration, it is preferable that the positively charged particle generating unit and the negatively charged particle generating unit are disposed outside the air flow blowing width of the blower fan.

In the charged particle delivery device having the above-described configuration, the positively charged particle generating unit and the negatively charged particle generating unit are formed from needle-like discharge electrodes protruding from a surface facing the blower fan in the casing of the charged particle generating element. Thus, it is preferable that an electrode protection plate for preventing the discharge electrode from coming into contact with an external object is attached to the casing of the charged particle generating element.

In the charged particle delivery device configured as described above, it is preferable that at least a part of the air passing through the region flows between a case of the charged particle generating element and the electrode protection plate.

In the charged particle delivery device configured as described above, it is preferable that a through hole is formed in the electrode protection plate at a location corresponding to the front surface of the discharge electrode.

In the blower device of the present invention, a wind direction plate is arranged at the air outlet on one side of the housing, and the power switch of the blower fan is switched on or off according to the movement of the wind direction plate opening or closing the air outlet. Therefore, it is not necessary to provide an operation button or an operation lever of the power switch on the outer surface of the housing, and the design of the blower can be made clean. Also, if you look at the position of the wind direction plate, you can know at a glance the switching state of the power switch even from a distance.

In the blower of the present invention, the plug and the terminal are electrically connected when the installation part and the plug are in contact with the installation surface. The state where the installation part and the plug are not in contact with the installation surface is a state where the blower is installed on the installation surface in an unstable state. That is, since the plug and the terminal portion are electrically connected when the blower is stably installed on the installation surface, it is possible to easily grasp the conductive state between the plug and the terminal portion. Also, even if the plug is not fully inserted into the terminal part and the installation part and the plug are not in contact with the installation surface, the installation part and plug are applied to the installation surface by applying force to the housing. By making contact, the plug and the terminal portion are electrically connected. Therefore, the plug and the terminal portion can be easily conducted without directly touching the plug.

In the air blower of the present invention, the holding member has a function of holding the charged particle generating element and also has a function as a part of the duct. In other words, the holding member constitutes a duct near the charged particle generating element. The holding member is detachably disposed integrally with the charged particle generating element with respect to the housing. That is, since the duct in the vicinity of the charged particle generating element is detachable, the inside of the duct in the vicinity of the charged particle generating element can be easily cleaned. In addition, the charged particle generating element can be easily replaced and cleaned.

Further, in the charged particle delivery device of the present invention, the charged particle generating element is disposed in the region where the air flow blown from the blower fan is directed toward the outlet and the dynamic pressure of the air flow is made static or behind the region. Therefore, it is not necessary to make the ventilation path long in the vertical direction for the arrangement of the charged particle generating elements, and the height of the charged particle delivery device can be suppressed. In addition, since the charged particles are discharged into the airflow that has been decelerated by the dynamic pressure being made static in the region, the charged particles can be reliably carried on the airflow.

It is a perspective view of the air blower concerning the embodiment of the present invention, and shows the state where the wind direction board makes the blower outlet large opening. It is a vertical sectional view of the air blower of FIG. FIG. 3 is a vertical sectional view in which the blower of FIG. 1 is cut in a direction perpendicular to FIG. 2. FIG. 4 is a vertical cross-sectional view in which the blower of FIG. 1 is cross-sectioned with the viewpoint perpendicular to FIG. 2 and opposite to FIG. 3. It is a perspective view of the air blower concerning the embodiment of the present invention, and shows the state where the wind direction board makes the opening small. FIG. 6 is a vertical sectional view of the blower of FIG. 5 taken along a direction perpendicular to FIG. 5. It is a top view of the air blower which concerns on embodiment of this invention. It is a figure of the state which removed the wind direction board from FIG. It is a side view of the air blower concerning an embodiment of the present invention. It is a rear view of the air blower which concerns on embodiment of this invention. It is a bottom view of the air blower concerning an embodiment of the present invention. It is a figure of the state which removed the power cord from FIG. FIG. 7 is a vertical sectional view similar to FIG. 6, showing a state where the bottom plate of the housing is removed. It is a perspective view of an ion generating element. It is a vertical sectional view showing the state where the air blower according to the embodiment of the present invention falls and is inverted. It is a schematic diagram which shows schematic structure of a charged particle generation part.

<First Embodiment>
Hereinafter, the structure of the blower according to the embodiment of the present invention will be described with reference to the drawings. The blower 1 includes a cubic synthetic resin casing 2. The right hand side of the user facing the front of the housing 2 is defined as the right side surface of the housing 2, and the left hand side is defined as the left side surface of the housing 2. FIG. 9 is a right side view of the blower 1.

The casing 2 has a cubic shape as described above, and includes six side surfaces (this “side surface” includes the top surface and the bottom surface). A suction port is formed on one of the six side surfaces, and a blow-out port is formed on one side surface other than the side surface where the suction port is formed. In the present embodiment, a suction port 2 a (see FIG. 3) is formed on the left side surface of the housing 2, and an air outlet 2 b is formed on the upper surface of the housing 2. The suction port 2a is composed of a set of a plurality of through holes. The blower outlet 2b has a circular front shape (here, a shape when viewed from above). Moreover, the blower outlet 2b becomes a shape which squeezes down in the shape of a mortar.

The formation of the air outlet 2b is limited to only one side of the housing 2, but there is no such limitation with respect to the air inlet 2a. It is good also as forming the suction inlet 2a in the some side surface of the housing | casing 2. FIG.

The casing 2 is molded as a single part on the side and top surfaces of the four circumferences, and only the bottom surface is constituted by a separate bottom plate 3. The bottom plate 3 is detachable, and rubber legs 4 for stably supporting the housing 2 on the table are provided at the four corners.

As shown in FIG. 12, a through hole 3a is formed in the bottom plate 3, and a terminal 35 is disposed in the back of the through hole 3a. When the plug 6 at one end of the power cord 5 is connected to the terminal 35 as shown in FIG. 11, power can be supplied to the blower device 1 through the power cord 5. The power cord 5 may be connected to a household 100V power source or may be connected to a USB terminal of a personal computer or the like.

As shown in FIG. 1 and FIG. 9, two operation buttons are arranged on the right side surface of the housing 2 so as to be lined up and down. The upper one is an air volume switching button 50 for switching the air volume of a blower fan to be described later. Each time the air volume switching button 50 is pressed, the air volume is switched from weak to medium to strong. An air volume indicator 51 is arranged on the air volume switching button 50. The air volume indicator 51 indicates the air volume by the number of vertically long LED lamps. A display with only one LED lamp indicates “low”, and a display with two LED lamps indicates “medium”. A display in which three LED lamps are arranged represents the air volume “strong”.

The operation button below the air volume switching button 50 is a reset button 52. The reset button 52 is pressed after cleaning (cleaning) of a filter and an ion generating element, which will be described later, and indicates the accumulated time from the previous cleaning stored in the control unit (not shown) of the blower 1. It works to reset to zero. On the reset button 52, an indicator 53 for notifying that the filter maintenance time has come is arranged. Under the reset button 52, an indicator 54 for notifying that the time for maintenance of the ion generating element has come. The

indicators

53 and 54 are both constituted by LED lamps.

As shown in FIG. 10, a hooking hole 2 c having a so-called Dharma hole shape is formed on the back surface of the housing 2. If the retaining hole 2c is hooked on a hook (not shown) protruding from the wall surface of the room, the blower device 1 can be held and used in a wall-hanging state.

2 and FIG. 3, a blower fan 30 is disposed inside the housing 2. The blower fan 30 includes a casing 30a, a sirocco fan 30e disposed therein, and a motor 30f that rotates the sirocco fan 30e about a horizontal axis. The sirocco fan 30e is of a double-sided suction type, and the casing 30a is formed with an intake port 30b facing one suction surface of the sirocco fan 30e and an intake port 30c facing the other suction surface of the sirocco fan 30e. Yes. The intake port 30b is on the side facing the intake port 2a, and the intake port 30c is on the opposite side.

The suction duct 20 and the duct member 32 are arranged so as to sandwich the blower fan 30 from the left and right. The suction duct 20 and the duct member 32 are connected to each other in such a manner that a hook 32e formed at the lower end of the duct member 32 is engaged with a hook receiver 20a formed at the lower end of the suction duct 20. The upper ends of the suction duct 20 and the duct member 32 are engaged with the hook and the hook receiver in the same manner as the lower end, and then the connecting member 36 is placed on the upper end of the suction duct 20 and the duct member 32 through the connecting member 36. The screw 37 is connected by screwing. The blower fan 30 is fixed to the duct member 32 with screws not shown.

The suction duct 20 extends so as to connect the air inlet 30b of the blower fan 30 and the air inlet 2a of the housing 2. A filter 23 detachable from the bottom surface of the housing 2 is disposed between the inlet of the suction duct 20 and the suction port 2a.

The duct member 32 has a vertical wall portion 32a facing the intake port 30c of the blower fan 30, and an opening portion 32b is formed there. In the opening 32 b, a gap between the duct member 32 and the inner surface of the housing 2, mainly the lower surface of the duct member 32 and the bottom plate 3, from a notch 20 a (see FIG. 4) formed at the inlet of the suction duct 20. Air flows through the gap between the top surfaces. A chamfered portion 32c formed at a corner at the lower back of the duct member 32 also serves as an air passage.

When the blower fan 30 is driven, air is sucked into the housing 2 from the suction port 2a. The sucked air passes through the filter 23, and dust contained in the air is collected by the filter 23. The air that has passed through the filter 23 passes through the suction duct 20 as shown by an arrow A1 in FIG. Part of the air that has entered the suction duct 20 exits from the notch 20a to the outside of the suction duct 20, passes through the gap between the lower surface of the duct member 32 and the bottom plate 3 as shown by the arrow A2 in FIG. From there, it enters the inside of the duct member 32, passes through the opening 32 b, and is sucked into the air inlet 30 c of the blower fan 30.

Thus, since a plurality of suction paths are prepared for the blower fan 30, the blower efficiency can be improved. A circuit board 34 on which electronic components such as terminals 35 are mounted is arranged inside the duct member 32 with its plane being vertical, and the circuit board 34 is located in the airflow toward the opening 32b. Electronic components that generate heat can be cooled. If the opening 32b is arranged at a position closer to the upper side of the duct member 32, the air flowing into the duct member 32 from the lower side moves a long distance along the circuit board 34, and the cooling effect is improved.

The exhaust port 30d (refer FIG. 2) opened toward the front of the housing | casing 2 is provided in the casing 30a of the ventilation fan 30. As shown in FIG. The air discharged from between the fan blades of the sirocco fan 30e swirls clockwise in FIG. 2 in the casing 30a, and is blown out substantially horizontally from the exhaust port 30d. The air flow blowing direction from the exhaust port 30d may be a diagonally upward direction with a slight elevation angle, or a diagonally downward direction with a slight depression angle. The air blown out from the exhaust port 30d is blown out from the blowout port 2b via a blower passage formed inside the housing 2. The blowout duct 21 constitutes the air passage.

The blowout duct 21 receives the air blown from the exhaust port 30d from the inlet at the lower end, changes the direction of the air flow from the substantially horizontal direction to the vertical direction at the bent portion following the inlet, and blows the air upward from the outlet at the upper end. . The straight line portion that follows the bent portion in the blowout duct 21 does not necessarily extend in the vertical direction. It may be extended obliquely with a slight angle (for example, an angle within 10 °).

The bent part of the blowout duct 21 is a static pressure conversion region 21a in which the dynamic pressure of the airflow blown from the exhaust port 30d is converted into a static pressure. By converting the dynamic pressure of the blown airflow into a static pressure, an effect that a part of the airflow expands to the full width of the blowout duct 21 is produced.

The ion generating element 40 is disposed immediately after the static pressure conversion region 21a. The ion generating element 40 is for discharging ions into the airflow blown out of the housing 2 from the blower outlet 2b. The ion generating element 40 is held by a holding member 45 that constitutes a part of the blowing duct 21.

The holding member 45 is formed with a bent portion 45a on the outer peripheral side of the bent portion of the blowout duct 21. The bent portion 45a is a curved surface that gently transitions from the blowing direction of the blower fan 30 to the direction of the blowout port 2b. By setting it as such a shape, in the part close | similar to the connection part with the blowing duct 21, blowing airflow hits from the front, and dynamic pressure is converted into a static pressure. In addition, at the portion where the bent portion 45a and the exhaust port 30d are connected, the blown airflow is smoothly redirected by the curved surface and guided upward. As a result, both airflows merge and are supplied to the ion generating element 40 while maintaining the airflow velocity while spreading in the lateral width direction of the blowout duct 21.

In the present embodiment, the bent portion 45a is a curved surface that gently changes from the blowing direction of the blower fan 30 to the outlet 2b, but the bent portion 45a is formed to be bent substantially at a right angle like an elbow pipe. May be.

As shown in FIG. 14, the ion generating element 40 has a thin flat box-like casing in the front-rear direction, and faces the blower fan 30 on the front surface of the casing (the rear face in the direction of the entire blower 1). A pair of left and right needle-like discharge electrodes 41 serving as an ion generating portion project from the side surface) toward the blower fan 30. The discharge electrode 41 generates ions by corona discharge. The discharge electrode 41 is directly above the bent portion 45a, more precisely, immediately after the connecting portion between the bent portion 45a and the straight portion of the outlet duct 21 that connects the bent portion 45a to the outlet 2b, that is, immediately after the static pressure conversion region 21a. Although it is supposed to be located, it may be located in the middle of the bent portion 45a, that is, in the static pressure conversion region 21a.

One of the pair of discharge electrodes 41 is a positive ion generation part and the other is a negative ion generation part, and is arranged at a predetermined distance in the horizontal direction. The interval between the pair of discharge electrodes 41 is wider than the width of the exhaust port 30 d of the blower fan 30. In other words, each of the pair of discharge electrodes 41 is disposed outside the air flow blowing width of the blower fan 30.

In order to enable the arrangement of the discharge electrode 41 as described above, the holding member 45 is connected to the exhaust port 30d of the blower fan 30 from the opening 45b having substantially the same width as the exhaust port 30d (the entire blower 1). In this direction, the front portion is a symmetrically extending portion 45c. The discharge electrode 41 is positioned in the lateral width of the overhanging portion 45c. The blowout duct 21 extends to the outlet at the upper end with the same lateral width as the overhanging portion 45c on the downstream side of the overhanging portion 45c.

At the center of the bent portion 45a, an airflow branching portion 45d that distributes the airflow from the blower fan 30 to both discharge electrodes 41 is formed. The airflow branching portion 45 d is composed of a vertical wall protruding in the direction of the blower fan 30.

The ion generating element 40 is held by inserting the casing into the holding member 45 from above. A connection terminal 40 a connected to the terminal portion 42 inside the housing 2 is formed on the upper surface of the housing of the ion generating element 40.

An electrode protection plate 40b for preventing the discharge electrode 41 from coming into contact with another object is attached to the front surface of the housing. For this reason, there is no need to worry that the discharge electrode 41 hits another object and deforms. A circular through hole 40 c is formed in the electrode protection plate 40 b at a location corresponding to the front surface of the discharge electrode 41. At least a part of the air passing through the static pressure conversion region 21a flows between the housing of the ion generating element 40 and the electrode protection plate 40b. Another part of the air passing through the static pressure conversion region 21a passes through the through hole 40 and is blown to the discharge electrode 41. The shape of the through hole 40 is circular in this embodiment, but may be other shapes.

A light guide plate 25 is disposed above the blowout duct 21 so as to partition the inside of the housing 2 horizontally. The upper surface of the light guide plate 25 is applied to the lower edge of the air outlet 2b. A communication port 25b is formed in the light guide plate 25 on the side close to the front surface of the housing 2, and an outlet at the upper end of the outlet duct 21 is connected to the communication port 25b. A guide plate 25 c that guides the airflow rising inside the blowout duct 21 toward the front is formed in the communication port 25 b so as to protrude into the blowout duct 21.

The light guide plate 25 is made of a transparent material such as acrylic resin, and the rear end serves as the incident surface 25a. A light emitting diode (LED) 26 serving as a light source is arranged in a shape facing the incident surface 25a. A reflection sheet (not shown) is overlaid on the lower surface of the light guide plate 25.

A through hole 25d is formed at the center of the light guide plate 25. This location is the center of the air outlet 2b and also the center of the housing 2. The shaft portion 17 rising from the connecting member 36 passes through the through hole 25 d and protrudes from the upper surface of the light guide plate 25. The wind direction plate 10 is supported on the shaft portion 17.

The wind direction plate 10 is an umbrella-shaped synthetic resin part having a circular planar shape and is slightly smaller in diameter than the air outlet 2b. The wind direction plate 10 pops up on the upper surface of the housing 2 as will be described later, but since it is circular, it does not feel pain even if it is touched by the user's fingers. The lower surface of the wind direction plate 10 is a conical inclined surface 10a. A circular name plate 10 b is fitted on the upper surface of the wind direction plate 10.

The wind direction plate 10 is attached to a slide body that can slide with respect to the housing 2. What constitutes the slide body in the present embodiment is a sleeve 11 protruding downward from the center of the lower surface of the wind direction plate 10. The sleeve 11 is fitted to the outside of the shaft portion 17 and slides up and down along the shaft portion 17. A configuration in which a sleeve-like member is disposed on the side of the housing 2 and the shaft-like member inserted therein is a slide body is also possible.

A compression coil spring 16 is disposed between the sleeve 11 and the shaft portion 17, and the compression coil spring 16 serves as a biasing unit that biases the sleeve 11 toward the outside of the housing 2.

The sleeve 11 is provided with a push-on / push-off locking means that holds the sleeve 11 against the urging force of the compression coil spring 16. Push-on / push-off type locking means that pops up when pressed and pops up and returns to the retracted position when pressed again is well known for knock-type ballpoint pens and electrical appliance switches, and the mechanism Various things are known. In the present embodiment, the first locking portion 17a and the second locking portion 17b that are formed on the side surface of the shaft portion 17 so as to be lined up and down, and the first locking portion 17a and the first locking portion provided inside the sleeve 11 are provided. The engaging member 12 that selectively engages with one of the two locking portions 17b constitutes a push-on / push-off type locking means 19.

In FIG. 1 to FIG. 4, the wind direction plate 10 is popped up from the housing 2, and the engagement member 12 engages with the first locking portion 17 a to keep the wind direction plate 10 from protruding further. . A gap between the wind direction plate 10 and the air outlet 2b is greatly opened, and this is referred to as “the air outlet is opened” in this specification.

5 and 6, the wind direction plate 10 is pushed into the housing 2 against the urging force of the compression coil spring 16 and is located in the air outlet 2b. The engaging member 12 engages with the second locking portion 17b to keep the wind direction plate 10 at its height. The gap between the wind direction plate 10 and the air outlet 2b is reduced, and this is referred to as “the air outlet is closed” in this specification. In addition, in this embodiment, although the wind direction board 10 has stopped in the state which produced the clearance gap between the blower outlets 2b, the structure which the wind direction board 10 obstruct | occludes the blower outlet 2b completely may be sufficient.

The wind direction plate 10 does not contact the air outlet 2b, although the gap with the air outlet 2b is reduced. This is because in order to pop up the wind direction plate 10 again, it is necessary to depress the wind direction plate 10 again, and a space corresponding to the depressing stroke is required under the wind direction plate 10. However, if the inner surface of the air outlet 2b does not sag downward and the air direction plate 10 can be pushed down even after the air direction plate 10 comes into contact therewith, the air direction plate 10 is brought into contact with the air outlet 2b. In this case, the air outlet 2b may be completely closed.

The displacement of the wind direction plate 10 as described above is used for on / off control of the power switch of the blower fan 30. The power switch 18 is installed under the light guide plate 25 and makes the actuator interfere with the slide locus of the sleeve 11.

When the wind direction plate 10 comes to a position where the air outlet 2b is opened, that is, when it is in a pop-up state, the sleeve 11 does not push the actuator of the power switch 18 as shown in FIG. In this state, the power switch 18 is turned on.

When the wind direction plate 10 comes to the position where the air outlet 2b is closed, that is, when the air direction plate 10 is pushed into the air outlet 2b, the sleeve 11 presses the actuator of the power switch 18 as shown in FIG. In this state, the power switch 18 is turned off.

Thus, since the power switch 18 of the blower fan 30 can be switched on or off in accordance with the movement of the wind direction plate 10 opening or closing the air outlet 2b, the operation button or the operation lever of the power switch 18 is switched. Need not be provided on the outer surface of the housing 2, and the design of the blower 1 can be made clean. Further, if the position of the wind direction plate 10 is seen, the switching state of the power switch 18 can be known at a glance even from a distance.

When the wind direction plate 10 is pushed into the housing 2, the air outlet 2b opens, and at the same time, the power switch 18 is turned on. When the wind direction plate 10 returns to the original position, the air outlet 2b is closed and the power switch 18 is turned on. It is also possible to configure so that is turned off.

In the present embodiment, the blower fan 30 starts rotating as soon as the power switch 18 is turned on. However, the blower fan 30 may be configured not to be driven only when the power switch 18 is turned on, but to start rotating with the further operation such as the air volume setting by the air volume switching button 50 as an opportunity.

Subsequently, the operation of the blower 1 will be described. If the wind direction plate 10 is pushed into the pop-up state with the power cord 5 connected to the power source, the power switch 18 is turned on and the blower fan 30 starts rotating. The ion generating element 40, the LED 26, and the air volume indicator 51 are also energized, the ion generating element 40 starts generating ions, the LED 26 starts illuminating the light guide plate 25, and the air volume indicator 51 is set at that time. Start displaying the air volume.

External air is sucked from the suction port 2a by the rotation of the blower fan 30, and the air passes through the filter 23 and then passes through the suction duct 20 and is sucked into the suction port 30b. The air is sucked into the casing 30a from the two intake paths of the intake path that passes through the outside and then passes through the inside of the duct member 32 and is sucked into the intake port 30c.

The air sucked into the casing 30a is sucked into the sirocco fan 30e, discharged from between the fan blades of the sirocco fan 30e, and blown out from the exhaust port 30d. The air blown out in the horizontal direction from the exhaust port 30d enters the blowout duct 21 and is redirected to a vertical airflow toward the blowout port 2b in the static pressure conversion region 21a. Along with this change in direction, the dynamic pressure of the airflow is converted into a static pressure. Once the dynamic pressure is converted to static pressure, the airflow rises inside the blowout duct 21, and ions generated from the ion generating element 40 are mixed in the air in the middle.

A high voltage having an AC waveform or an impulse waveform is applied to the discharge electrode 41 of the ion generating element 40, whereby the discharge electrode 41 performs corona discharge. A positive voltage is applied to one of the discharge electrodes 41, and water molecules in the air are ionized by corona discharge to generate hydrogen ions. This hydrogen ion is clustered with water molecules in the air by solvation energy. As a result, positive ions of air ions composed of H ⁺ (H ₂ O) m (m is 0 or an arbitrary natural number) are released.

A negative voltage is applied to the other discharge electrode 41, and oxygen ions or water molecules in the air are ionized by corona discharge to generate oxygen ions. This oxygen ion is clustered with water molecules in the air by solvation energy. Thereby, negative ions of air ions composed of O ₂ ⁻ (H ₂ O) n (n is an arbitrary natural number) are released.

H ⁺ (H ₂ O) m and O ₂ ⁻ (H ₂ O) n aggregate around the surface of airborne bacteria and odorous components and surround them. Then, as shown in the following formulas (1) to (3), [• OH] (hydroxyl radical) and H ₂ O ₂ (hydrogen peroxide), which are active species, are aggregated on the surface of a microorganism or the like by collision. To destroy airborne bacteria and odorous components. Here, m ′ and n ′ are arbitrary natural numbers. Accordingly, by sending positive ions and negative ions into the room from the air outlet 2b, the room can be sterilized and the odor can be removed.

H ⁺ (H ₂ O) m + O ₂ ⁻ (H ₂ O) n → OH + _1/2 O ₂ + (m + n) H ₂ O (1)
^{_{H + (H 2 O) m}} + H + (H 2 O) m '+ O 2 - (H 2 O) n + O 2 - (H 2 O) n'
→ 2 · OH + O ₂ + (m + m ′ + n + n ′) H ₂ O (2)
^{_{H + (H 2 O) m}} + H + (H 2 O) m '+ O 2 - (H 2 O) n + O 2 - (H 2 O) n'
→ H ₂ O ₂ + O ₂ + (m + m ′ + n + n ′) H ₂ O (3)

The pair of discharge electrodes 41 are arranged apart in the left-right direction, which is a direction perpendicular to the airflow. For this reason, the positive ions generated at one discharge electrode 41 and the negative ions generated at the other discharge electrode 41 are less likely to recombine and disappear due to each other's collision, thereby increasing the amount of ions delivered. Can do. If both the discharge electrode 41 serving as the positive ion generation unit and the discharge electrode 41 serving as the negative ion generation unit are arranged outside the air flow blowing width of the blower fan 30 as in the present embodiment, The disappearance due to recombination of ions and negative ions can be further reduced.

Passing through the discharge electrode 41 while entraining ions generated by the discharge electrode 41 is air whose dynamic pressure has been converted to static pressure in the static pressure conversion region 21a. In the static pressure conversion region 21a, the velocity component of the airflow once disappears, and an airflow directed toward the discharge electrode 41, which is an ion generation unit, is generated by the static pressure. The amount of airflow passing through 41 is not significantly affected. Therefore, even if the discharge electrode 41 is disposed outside the air blowing width of the blower fan 30, a sufficient air flow passing through the discharge electrode 41 can be secured and ions can be efficiently delivered.

Since the discharge electrode 41 is disposed on the outer peripheral side of the bent portion of the blowout duct 21, a portion having a large velocity component passes through the periphery of the discharge electrode 41 in the airflow passing through the static pressure conversion region 21a. For this reason, ions can be delivered efficiently.

The airflow blown from the blower fan 30 is evenly distributed to the left discharge electrode 41 and the right discharge electrode 41 by an airflow branching portion 45d formed in the bent portion 45a. Therefore, there is no air volume imbalance between the air flow for sending positive ions and the air flow for sending negative ions.

At least a part of the air passing through the static pressure conversion region 21a flows between the casing of the ion generating element 40 and the electrode protection plate 40b. Therefore, the presence of airflow passing through the discharge electrode 41 is ensured, and ions generated at the discharge electrode 41 can be reliably delivered.

Other part of the air passing through the static pressure conversion region 21 a passes through the through hole 40 and is blown to the discharge electrode 41. This also ensures the existence of the airflow passing through the discharge electrode 41, and the ions generated at the discharge electrode 41 can be reliably delivered.

In this way, the horizontal air flow blown from the blower fan 30 is converted into a vertical air flow toward the outlet 2b, and the static pressure conversion region 21a for converting the dynamic pressure of the air flow into static pressure or ions immediately thereafter Since the ion generating part of the generating element 40 is arranged, it is not necessary to make the blowing duct 21 that is a blowing path long in the vertical direction for the arrangement of the ion generating element 40, and the height of the blowing device 1 is suppressed. be able to.

Among the static pressure conversion region 21a and the vicinity thereof, the connection portion between the bent portion 45a and the straight portion of the outlet duct 21 that connects the bent portion 45a to the outlet 2b is “the dynamic pressure of the blown airflow is converted into the static pressure. As a result, it is a place where the effect that “a part of the airflow spreads to the full width of the blowout duct 21” is most easily obtained, and also the place most suitable for suppressing the height of the charged particle delivery device 1 is there. Therefore, by disposing the ion generating portion of the ion generating element 40 at this location, the disappearance due to recombination of positive ions and negative ions can be further reduced, and the height of the charged particle delivery device 1 can be suppressed. it can.

The air containing positive ions and negative ions ascends inside the blowout duct 21 as indicated by an arrow B1 in FIG. 2, passes through the communication port 25b of the light guide plate 25, and exits into the blowout port 2b. The air that has flowed into the air outlet 2b continues to rise as indicated by arrow B2 and strikes the lower surface of the wind direction plate 10. And it blows out outside at an angle closer to the horizontal as shown by an arrow B3.

The air can flow out from the entire area of the annular outflow portion 8 formed between the air outlet 2b and the wind direction plate 10, but actually, the communication port 25b opens at a position in front of the shaft portion 17 and communicates. Since the guide plate 25c provided at the opening 25b also guides the airflow toward the front, the air blowing is concentrated in the forward direction.

In order to promote the concentration of air blowing in the forward direction, as shown in FIGS. 2 and 7, a recess 22 is formed on the inner surface of the air outlet 2b. The inner surface of the air outlet 2b squeezes while drawing a curve that is convex toward the central direction at locations other than the recesses 22, whereas the recess 22 linearly squeezes. In the recess 22 formed in this manner, the gap width with the wind direction plate 10 is widened, and more air flows out from here.

If the front of the blower 1 is directed toward the user, the air flow including ions concentrates around the user, and the user is given both a physical cooling sensation by the wind and a cooling sensation by the ions. Become. The ions also sterilize and deodorize around the user. Furthermore, air circulation occurs in the room by the air flow blown out from the blower 1, and sterilization and deodorization are promoted throughout the room.

When the power switch 18 is turned on, the LED 26 is turned on, and the LED 26 emits light in the horizontal direction. The light emitted from the LED 26 enters the light guide plate 25 from the incident surface 25a. Since the light guide plate 25 is processed to reflect light upward, the light changes its direction inside the light guide plate 25 and strikes the lower surface 10 a of the wind direction plate 10. The light is reflected radially on the lower surface of the wind direction plate 10 and indirectly illuminates the surroundings of the blower device 1. Since light is not reflected upward at the location of the communication port 25b, there is little light that hits the front portion of the lower surface 10a of the wind direction plate 10, and the user in front of the blower 1 does not have to feel glare.

A separate switch may be provided for the LED 26 so that the user can select whether to turn on the LED 26 in conjunction with the pop-up of the wind direction plate 10.

When the use of the blower 1 is finished, the wind direction plate 10 is pushed down to return from the pop-up state of FIG. 1 to the storage state of FIG. Then, the power switch 18 is turned off, and the blower fan 30 and the ion generating element 40 stop operating. The LED 26 and the air volume indicator 51 are turned off.

When the blower 1 is used for a long time, the dust is attached to the filter 23 thickly, and the ion generating element 40 needs to be maintained. When the accumulated usage time that is a standard for cleaning the filter 23 is reached, the control unit (not shown) of the blower 1 turns on the indicator 53. When the accumulated usage time that is a guide for the care of the ion generating element 40 is reached, the control unit turns on the indicator 54.

In order for the user who sees the lighting of the

indicator

53 or 54 to clean the filter 23 or to clean the ion generating element 40, it is necessary to remove the bottom plate 3. In order to remove the bottom plate 3, it is necessary to pull out the plug 6 of the power cord 5 from the terminal 35 prior to that. Therefore, there is no possibility that the user will get an electric shock during the cleaning or care work.

The screws 38 shown in FIG. 12 fix the bottom plate 3 to the housing 2. The screw 38 is of a type that can be turned with a coin, and the bottom plate 3 can be removed without a screwdriver. The screw 38 is prevented from being detached from the bottom plate 3, and there is no fear of losing it.

As shown in FIG. 13, if the bottom plate 3 is removed from the housing 2, the filter 23 can be pulled out from the lower surface opening of the housing 2. The extracted filter 23 is returned to its original position after being cleaned. In addition, the ion generating element 40 can be maintained by pulling the holding member 45 together with the ion generating element 40 and then removing the ion generating element 40 from the holding member 45.

After the maintenance is completed, the ion generating element 40 is attached to the holding member 45 again, and the holding member 45 is returned to the original position. When the holding member 45 is placed in a predetermined position that becomes a part of the blowing duct 21, the connection terminal 40 a comes into contact with the terminal portion 42, and electrical connection to the ion generating element 40 is established. When the bottom plate 3 is fixed to the housing 2 and the plug 6 of the power cord 5 is connected to the terminal 35, the blower 1 is ready for use again.

The user who has finished cleaning the filter 23 or cleaning the ion generating element 40 presses the reset button 52. As a result, the counting of the accumulated time restarts from zero.

Since the blower device 1 has a small cubic shape, there is a possibility that it will fall over when it hits it. As shown in FIG. 15, the upside down may be inverted. It is meaningless for the blower 1 to continue operation in such a state. Therefore, it is preferable that the operation of the blower 1 is automatically stopped when it is in an inverted state.

The blower 1 having the structure according to the present invention can meet the above request relatively easily. If the wind direction plate 10 is in the pop-up state when the inverted state shown in FIG. 15, that is, the state in which the wind direction plate 10 is installed with the surface on which the air outlet 2 b is formed facing down, the blower 1 is grounded by the wind direction plate 10. Since the entire mass of the blower device 1 excluding the mass of the wind direction plate 10 and the member that moves together is applied to the compression coil spring 16, it is sufficient that the urging force of the compression coil spring 16 is lost to this mass. If it does so, the wind direction board 10 which was a pop-up state will be retracted in the blower outlet 2b by the inversion of the air blower 1, and the power switch 18 will be turned off. As a result, the operation of the blower 1 is stopped.

In the present embodiment, the ion generating element 40 is incorporated in the air blower 1 and the air flow containing ions combined with moisture in the air is sent out, not just air blowing, but charged particles other than ions are included in the air flow. It is good as well. Examples of charged particles other than ions include charged fine particle water. If an electrostatic atomizer is used, the charged fine particle water containing a radical component can be produced | generated. That is, condensed water is generated on the surface of the discharge electrode by cooling the discharge electrode provided in the electrostatic atomizer with a Peltier element. When a negative high voltage is applied to the discharge electrode, charged fine particle water is generated from the dew condensation water.

<Second Embodiment>
Embodiments of the present invention will be described below with reference to the drawings. 7, FIG. 1, FIG. 9, and FIG. 10 show a top view, a bottom view, a left side view, and a rear view of the blower according to the first embodiment. The blower device 1 includes a cubic housing 2, and a suction port 2 a (see FIG. 3) is opened on the left side surface of the housing 2, and an air outlet 2 b is opened on the upper surface. The blower outlet 2b is formed in a circular shape, and a wind direction plate 10 supported so as to be movable up and down with respect to the housing 2 is disposed to face the blower outlet 2b.

The bottom plate 3 of the housing 2 is detachably provided, and rubber legs 4 are provided at the four corners of the bottom plate 3. Thereby, the air blower 1 can be installed and used on a desktop etc. Further, the rear surface of the housing 2 is provided with a hooking hole 2c that is hooked on a hook provided on a wall surface in the room. Thereby, the air blower 1 can also be hung on a wall surface and used.

A power cord 5 is connected to the right end of the bottom surface of the housing 2. As will be described in detail later, the power cord 5 is connected by inserting a plug 6 provided at one end into a terminal portion 35 (see FIG. 3) through an insertion hole 3a (see FIG. 3) provided in the bottom plate 3. The other end of the power cord 5 is connected to a power supply source such as a commercial power source or a USB terminal to supply power to the blower 1.

2 and 3 show a right side sectional view and a front sectional view of the blower 1. The wind direction plate 10 has a circular planar shape having substantially the same diameter as the air outlet 2b, and the lower surface 10a is formed in a substantially truncated cone shape having an inclined surface. A sleeve 11 is attached to the center of the wind direction plate 10. The sleeve 11 is fitted to a shaft portion 17 disposed on the housing 2, and can move up and down relative to the housing 2 together with the wind direction plate 10. The shaft portion 17 passes through a through hole 25d opened at the center of a light guide plate 25 described later, and is supported by a duct member 32 disposed in the housing 2.

The shaft portion 17 is provided with first and

second locking claws

17a and 17b arranged in the vertical direction and a compression spring 16 for urging the wind direction plate 10 upward. An engagement member 12 that engages with the first and

second locking claws

17 a and 17 b is attached in the sleeve 11. A power switch 18 is disposed on the upper surface of the duct member 32.

The wind direction plate 10 urged by the compression spring 16 moves between a position where the air outlet 2b is opened and a position where the air outlet 2b is opened by the engagement of the first and

second locking claws

17a, 17b and the engaging member 12. That is, as shown in the figure, when the engaging member 12 is engaged with the second locking claw 17b, the air outlet 2b is opened. At this time, the power switch 18 is turned on.

When the airflow direction plate 10 is pressed from the open state of the air outlet 2b and the engaging member 12 engages with the first locking claws 17a as shown in FIG. 6, the airflow direction plate 10 closes the air outlet 2b. At this time, the sleeve 11 contacts the power switch 18, and the power switch 18 is turned off. Moreover, if the wind direction board 10 is pushed down from the state which closed the blower outlet 2b, as shown in FIG. 2, the wind direction board 10 will pop up.

Thereby, the power switch 18 is turned on and off by the vertical movement of the wind direction plate 10, and the blower fan 30, the ion generating element 40 and the LED 26, which will be described later, are driven when the power switch 18 is turned on. Further, when the air outlet 2b is opened, an annular outflow portion 8 is formed by which the airflow is radially sent out between the air outlet 2b and the wind direction plate 10 by the air direction plate 10 having substantially the same diameter as the air outlet 2b.

The duct member 32 is disposed in the lower part of the housing 2 and is formed in a box shape with an opening surface at one end facing the suction port 2a. In the duct member 32, a blower fan 30 made of a sirocco fan covered with a casing 30a is disposed. The blower fan 30 is screwed and held on a fan holding portion 32a formed of the right side wall of the duct member 32.

The casing 30a has

intake ports

30b and 30c on both sides in the axial direction and an exhaust port 30d on the end surface in the circumferential direction. The duct member 32 forms the suction duct 20 that connects the suction port 2a and the one suction port 30b. A filter 23 detachable from the bottom surface of the housing 2 is disposed at the suction port 2a.

The opening 32b facing the air inlet 30c is opened on the right side wall of the duct member 32, and a notch 32d (see FIG. 4) is provided on the right end on the back side. Further, a chamfer 32c (see FIG. 4) is applied to the bottom of the duct member 32 on the back side. On the right side of the duct member 32, a circuit board 34 on which electronic parts such as the terminal portion 35 are mounted is erected and disposed.

The airflow flowing into the suction duct 20 from the suction port 2a by driving the blower fan is guided to the suction port 32b as indicated by an arrow A1. Further, as shown by an arrow A2 in the rear sectional view of FIG. 4, a part of the airflow flows out from the duct member 32 through the notch 32d and flows downward, and flows outside the chamfer 32c to the left. . The airflow flows upward between the circuit board 34 and the duct holding portion 32a, and is guided to the intake port 32c through the opening 32b.

Thereby, the air current can be sucked in from both sides in the axial direction of the blower fan 30 through a plurality of paths, and the blower efficiency can be improved. Moreover, the electronic component mounted on the circuit board 34 can be cooled by the airflow. At this time, the opening 32 b is provided above the center of the blower fan 30 and faces the upper portion of the standing circuit board 34. Thereby, the cooling effect of the circuit board 34 by the airflow which distribute | circulates toward the opening part 32b from the downward direction can be improved.

The first blowout duct 21 is provided in front of the exhaust port 30d of the blower fan 30. Above the first outlet duct 21, a second outlet duct 22 that opens the outlet 2b is provided. The 1st blowing duct 21 and the 2nd blowing duct 22 are connected via the communicating port 25b of the light-guide plate 25 mentioned later.

The upper part of the first blowing duct 21 is formed by a duct member 32, and the lower part is formed by a holding member 45 that holds the ion generating element 40 and is adjacent to the exhaust port 30d (that is, the holding member 45 forms a part of the duct). To do). FIG. 14 shows a perspective view of the holding member 45 holding the ion generating element 40. The holding member 45 has a bent portion 45a in which an opening 45b having substantially the same width in the left-right direction as the exhaust port 30d is opened at the rear end face and the flow path is widened in the left-right direction.

The front wall 45c of the bent portion 45a is formed by a curved surface continuous with the lower end of the casing 30a of the blower fan 30, and is inclined to face the exhaust port 30d. As a result, the airflow is bent and guided upward through the bent portion 45a. At this time, the air flow sent out from the exhaust port 30b collides with the front wall 45c of the bent portion 45a, and the dynamic pressure is converted into a static pressure and decelerated. Further, the dynamic pressure is also converted to static pressure by the widening of the flow path by the bent portion 45a, and the airflow is further decelerated. Therefore, the bending part 45a comprises the static pressure conversion part which converts the dynamic pressure of an airflow into a static pressure.

Further, a partition plate 45d extending vertically is provided on the front wall 45c of the bent portion 45a at the central portion facing the opening 45b.

The ion generating element 40 has a pair of needle-shaped discharge electrodes 41 arranged in parallel in the left-right direction facing the first blowing duct 21. The discharge electrode 41 is disposed immediately above the bent portion 45a, and the distance between both the discharge electrodes 41 is formed wider than the width of the opening 45b.

The discharge electrode 41 of the ion generating element 40 generates a corona discharge by applying a high voltage having an AC waveform or an impulse waveform. A positive voltage is applied to one of the discharge electrodes 41, and water molecules in the air are ionized by corona discharge to generate hydrogen ions. This hydrogen ion is clustered with water molecules in the air by solvation energy. As a result, positive ions of air ions composed of H ⁺ (H ₂ O) m (m is 0 or an arbitrary natural number) are released.

H ⁺ (H ₂ O) m and O ₂ ⁻ (H ₂ O) n aggregate around the surface of airborne bacteria and odorous components and surround them. Then, as shown in the formulas (1) to (3), active species [· OH] (hydroxyl radicals) and H ₂ O ₂ (hydrogen peroxide) are agglomerated and produced on the surface of microorganisms or the like by collision. Destroy airborne bacteria and odorous components. Here, m ′ and n ′ are arbitrary natural numbers. Accordingly, by sending positive ions and negative ions into the room from the air outlet 2b, the room can be sterilized and the odor can be removed.

By arranging the pair of discharge electrodes 41 in the left-right direction perpendicular to the airflow, it is possible to suppress the disappearance due to the collision between the positive ions and the negative ions and increase the amount of ions to be delivered.

In addition, since the discharge electrode 41 is disposed immediately above the bent portion 42a, ions generated at the discharge electrode 41 are included in the airflow that has been decelerated by being converted into static pressure by the bent portion 42a. Thereby, the ion which generate | occur | produced in the discharge electrode 41 can be reliably conveyed with an airflow, and the sending amount of ion can be increased.

At this time, since the distance between the discharge electrodes 41 is larger than the width of the opening 45b and the discharge electrodes 41 are arranged on both sides of the opening 45b, ions can be more reliably included in the decelerated airflow. . Moreover, the flow rate of the airflow flowing around each discharge electrode 41 can be made substantially equal by the partition plate 45d, and positive ions and negative ions can be contained uniformly.

The holding member 45 can be detached from the bottom surface of the housing 2 by removing the bottom plate 3 as shown in FIG. Thereby, the ion generating element 40 can be replaced | exchanged easily. In addition, the blade 30e (see FIG. 3) of the blower fan 30 can be cleaned through the exhaust port 30d exposed by the attachment and detachment of the holding member 45. Similarly, the filter 23 (see FIG. 3) can be detached from the bottom surface of the housing 2 by removing the bottom plate 3, and the filter 23 can be easily cleaned.

In addition, the ion generating element 40 has the connection terminal 40a on the upper surface. When the ion generating element 40 is mounted together with the holding member 45 from below, the connection terminal 40 a comes into contact with the terminal portion 42 provided in the housing 2 so that power can be supplied to the ion generating element 40. For this reason, the weight of the ion generating element 40 is not weighted to the terminal part 42, and the failure of the terminal part 42 by continuing weighting can be prevented.

The bottom plate 3 of the housing 2 can be removed with the plug 6 (see FIG. 3) of the power cord 5 removed as shown in the bottom view of FIG. Thereby, the electric shock by being energized when the bottom plate 3 is removed can be prevented.

2 and 3, a light guide plate 25 is horizontally disposed on the upper surface of the first outlet duct 21. The light guide plate 25 is formed in a flat plate shape by a transparent member such as acrylic, and an LED 26 (light source) is disposed so as to face the incident surface 25a on the rear end surface. A reflection sheet (not shown) is disposed on the lower surface of the light guide plate 25.

The light emitted from the LED 26 enters the light guide plate 25 from the incident surface 25a and is guided, and the light incident on the upper and lower surfaces at an incident angle smaller than the critical angle is emitted. At this time, the light emitted from the lower surface of the light guide plate 25 is reflected upward by the reflection sheet. Thereby, light is emitted from the upper surface (emission surface) of the light guide plate 25 toward the air outlet 2b.

A through hole 25d through which the shaft portion 17 passes is opened at the center of the light guide plate 25, and a communication port 25b is opened at the front portion opposite to the incident surface 25a with respect to the through hole 25d. Since the 1st blowing duct 21 is distribute | arranged to the front part of the housing | casing 2, the communication port 25b which faced the 1st blowing duct 21 is provided in the front part eccentric with respect to the blower outlet 2b.

A second blowing duct 22 is provided above the light guide plate 25. The 2nd blowing duct 22 has the blower outlet 2b on the upper surface, and is formed in the cylinder shape concentric with the blower outlet 2b. The vertical cross section of the inner wall 22a of the second blow-out duct 22 is formed in a curved shape with a narrow bottom.

FIG. 8 shows a top view of the housing 2 with the wind direction plate 10 omitted. The communication port 25b of the light guide plate 25 is provided with a wind direction variable portion 25c that guides the airflow rising through the first blowout duct 21 forward and is provided in a lattice shape. The front part of the second blow-out duct 22 is provided with a recess 22b that is recessed in the inner wall 22a. The inner surface of the recess 22b is formed of a conical surface having a straight vertical section, and the lower end of the recess 22b is formed along the communication port 25b and the upper end is formed inside the periphery of the outlet 2b.

In the air blower 1 having the above configuration, when the wind direction plate 10 is popped up and the air outlet 2b is opened, the air blowing fan 30, the ion generating element 40, and the LED 26 are driven. Airflow dust flowing into the housing 2 from the suction port 2a is collected by the filter 23, flows through the suction duct 23 as shown by an arrow A1, and is guided to the blower fan 30 from the suction port 30b. Further, a part of the airflow flows outside the duct member 32 as indicated by an arrow A2, and is guided to the blower fan 30 from the intake port 30c.

The airflow sent from the exhaust port 30d of the blower fan 30 ascends the first blowing duct 21 as shown by an arrow B1 (see FIG. 2). At this time, ions generated by the ion generating element 40 are included in the airflow. The air flow containing ions flows into the second blowout duct 22 through the communication port 25b and rises as shown by an arrow B2 (see FIG. 2), and then radiates from the outflow portion 8 as shown by an arrow B3 (see FIG. 2). Is sent out.

At this time, the airflow flows into the second outlet duct 22 from the communication port 25b disposed in the front portion of the housing 2, and the airflow is guided forward by the wind direction variable portion 25c. Moreover, the flow path width of the front part between the 2nd blowing duct 22 and the wind direction board 10 is expanded by the recessed part 22b. As a result, more airflow than the surroundings is sent to the front of the blower 1.

Therefore, many airflows including ions are sent toward the user's head facing the front front of the blower 1, and the user can be refreshed and sterilized in the vicinity of the user. Moreover, surrounding sterilization, air circulation, etc. can be performed with the airflow containing the ion sent to the side and the back of the air blower 1.

Further, the light guided through the light guide plate 25 by driving the LED 26 is emitted toward the air outlet 2b and is reflected radially by the lower surface 10a of the wind direction plate 10. Thereby, the indirect illumination around the air blower 1 can be performed. At this time, the light emitted from the front portion of the light guide plate 25 is reduced by the communication port 25b. For this reason, the glare of the user who faced the front front of the air blower 1 can be reduced. Further, since the communication port 25b is disposed on the opposite side of the incident surface 25a with respect to the shaft portion 17, light emitted from the front portion of the light guide plate 25 can be further reduced.

Here, the electrical connection relationship between the plug 6 and the terminal portion 35 will be further described. As described above, the rubber legs 4 are provided at the four corners of the bottom plate 3. The four rubber legs 4 constitute an installation portion that stably supports the blower device 1 by abutting against an installation surface 50 such as a tabletop when the blower device 1 is used.

The plug 6 is electrically connected by being inserted into the terminal portion 35. On the other hand, the plug 6 has a predetermined length and may not be electrically connected due to poor contact or the like depending on the degree of insertion into the terminal portion 35. Therefore, in this embodiment, when the rubber legs 4 and the plugs 6 provided at least at the four corners of the bottom plate 3 are in contact with the installation surface 50, the plug 6 and the terminal portion 35 are electrically connected (conducted). .

The case where the plug 6 is not firmly inserted into the terminal portion 35 will be further described as an example. When the blower 1 is installed on the installation surface 50 in a state where the plug 6 is not firmly inserted into the terminal portion 35 (that is, the state where the plug 6 and the terminal portion 35 are not conductive), all the rubber legs 4 and the installation surface 50 are connected. Does not touch. In other words, one or more rubber legs 4 are in a floating state. In such a state, the plug 6 is inserted into the terminal portion 35 by applying a force to the housing 2 so that all the rubber legs 4 and the installation surface 50 are in contact with each other. As a result, the plug 6 and the terminal portion 35 are electrically connected.

According to this embodiment, when the rubber leg 4 and the plug 6 are in contact with the installation surface 50, the plug 6 and the terminal portion 35 are electrically connected. That is, since the plug 6 and the terminal portion 35 are electrically connected when the blower device 1 is stably installed on the installation surface 50, the conductive state between the plug 6 and the terminal portion 35 can be easily grasped. Moreover, even if the plug 6 is not sufficiently inserted into the terminal portion 35, the plug 6 and the terminal portion 35 can be easily conducted without directly touching the plug 6.

Further, the plug 6 is connected to the terminal portion 35 through an insertion hole 3 a that opens in the bottom plate 3 that can be attached to and detached from the housing 2. Further, since the bottom plate 3 is detachably formed by detaching the plug 6, it is necessary to remove the plug 6 from the terminal portion 35 in order to remove the bottom plate 3 from the housing 2. That is, when the bottom plate 3 is removed, power is not supplied to the blower 1, so when the user removes the bottom plate 3 and performs cleaning and maintenance inside the housing 2, the user touches various electronic components to receive an electric shock. There is nothing.

Further, since the ion generating element 40 and the holding member 45 can be detached from the bottom surface of the housing 2 when the bottom plate 3 is removed, the ion generating element 40 and the holding member 45 can be easily replaced or cleaned. .

In addition, since the filter 23 can be detached from the bottom surface of the housing 2 when the bottom plate 3 is removed, the filter 23 can be easily replaced or cleaned.

Further, the holding member 45 has a function of holding the ion generating element 40 and also has a function as a part of the first blowing duct 21. In other words, the holding member 45 constitutes a duct near the ion generating element 40. The holding member 45 is arranged so as to be detachable integrally with the ion generating element 40 with respect to the housing 2. That is, since the duct in the vicinity of the ion generating element 40 is detachable, the inside of the duct in the vicinity of the ion generating element 40 can be easily cleaned. In addition, replacement and cleaning of the ion generating element 40 can be easily performed.

Further, by removing the bottom plate 3 from the housing 2, the holding member 45 and the ion generating element 40 can be detached from the bottom surface side of the housing 2.

Further, an exhaust port 30d is provided in the vicinity of the bottom plate 3. The exhaust port 30 d can be visually recognized by removing the bottom plate 3 from the housing 2 and removing the holding member 45 and the ion generating element 40 from the housing 2. As described above, since the exhaust port 30d is provided in the vicinity of the bottom plate 3, access from the bottom surface side of the housing 2 is easy, and the exhaust port 30d can be easily cleaned.

Further, the direction of the air flow blown out from the exhaust port 30d is converted upward by the bent portion 45a, flows through the

ducts

21 and 22, and is blown out from the air outlet 2b. Therefore, the exhaust port 30d can be easily cleaned, and the blower can blow out ions from the upper surface side of the housing 2. Further, by making the direction of the air flow blown out from the exhaust port 30d substantially perpendicular to the direction of the air flow flowing through the

ducts

21 and 22, the direction of both air flows is made the same direction. The height of the device can be reduced. Therefore, the blower can be reduced in size.

In addition, a connection terminal 40 a is provided on the upper surface of the ion generating element 40 held by the holding member 45 that can be detached from the bottom surface side of the housing 2. Therefore, the weight of the ion generating element 40 and the holding member 45 is not applied to the connection terminal 40a. Thereby, failures such as damage and deformation of the connection terminal 40a can be prevented.

In the present embodiment, the rubber legs 4 are provided at the four corners of the bottom plate 3, but the rubber legs 4 may not be provided. In that case, the plug 6 and the terminal portion 35 may be electrically connected when the installation portion provided on the bottom plate 3 and the plug 6 abut on the installation surface 50. In addition, the installation part provided in the baseplate 3 may be the whole of the surface facing the installation surface 50 or a part thereof. That is, what is necessary is just to contact | abut the installation surface 50 at the time of use of the air blower 1, and to support the air blower 1 stably.

In addition, although the insertion hole 3a is provided in the bottom plate 3 and the plug 6 is inserted through the insertion hole 3a, the connection is made to the terminal portion 35. However, the present invention is not limited to this. That is, the blower 1 can be used by being hung on the wall surface as described above. Therefore, rubber legs (installation portions) and insertion holes may be formed on the back surface of the housing 2, and the plug 6 may be inserted into a terminal portion (not shown) provided on the back surface through the insertion holes formed on the back surface. . Then, when the rubber leg (installation portion) and the plug 6 are brought into contact with the wall surface, the plug 6 and the terminal portion provided on the back surface may be electrically connected. In this case, the back plate can be attached to and detached from the housing 2. That is, the plate part provided with the insertion hole into which the plug 6 is inserted may be detachable from the housing 2.

In addition, in this embodiment, it is supposed that the latching hole 2c latched on the hook provided on the wall surface of the room is provided on the back surface. However, the present invention is not limited to this, and any housing that does not impair the function of the blower 1 is provided. It may be provided at any position on the body 2. For example, the bottom plate 3 may be provided with a retaining hole.

Moreover, although the air flow containing the ion combined with the moisture in the air is sent out by the ion generating element 40, other charged particles may be sent out. For example, charged fine particle water may be sent out as charged particles. Specifically, charged fine particle water containing a radical component can be generated by an electrostatic atomizer. That is, condensed water is generated on the surface of the discharge electrode by cooling the discharge electrode provided in the electrostatic atomizer with a Peltier element. When a negative high voltage is applied to the discharge electrode, charged fine particle water is generated from the dew condensation water.

<Third Embodiment>
In the above-described embodiment, the description has been made by attaching the reference numeral 1 to the blower, but in this embodiment, the charged particle delivery device which is a kind of the blower is attached by the reference numeral 1 for description.

The embodiment of the present invention has been described above, but the scope of the present invention is not limited to this, and various modifications can be made without departing from the spirit of the invention.

Hereinafter, the structure of the charged particle delivery device according to the embodiment of the present invention will be described with reference to the drawings. The charged particle delivery device 1 includes a cubic synthetic resin casing 2. The right hand side of the user facing the front of the housing 2 is defined as the right side surface of the housing 2, and the left hand side is defined as the left side surface of the housing 2. FIG. 9 is a right side view of the charged particle delivery device 1.

The housing 2 has a cubic shape as described above, and a suction port is formed on one of the four sides. In the present embodiment, a suction port 2 a (see FIG. 3) is formed on the left side surface of the housing 2. The suction port 2a is composed of a set of a plurality of through holes. The suction port 2 a may be formed on a plurality of side surfaces of the housing 2.

A blower outlet 2 b is formed on the upper surface of the housing 2. The blower outlet 2b has a circular front shape (here, a shape when viewed from above). Moreover, the blower outlet 2b becomes a shape which squeezes down in the shape of a mortar.

The casing 2 is molded as a single part on the side and top surfaces of the four circumferences, and only the bottom surface is constituted by a separate bottom plate 3. The bottom plate 3 is detachable, and rubber legs 4 for stably supporting the housing 2 on a support surface such as a desk or a table are provided at four corners.

As shown in FIG. 12, a through hole 3a is formed in the bottom plate 3, and a terminal 35 is disposed in the back of the through hole 3a. When the plug 6 at one end of the power cord 5 is connected to the terminal 35 as shown in FIG. 11, power can be supplied to the charged particle delivery device 1 through the power cord 5. The power cord 5 may be connected to a household 100V power source or may be connected to a USB terminal of a personal computer or the like.

The operation button below the air volume switching button 50 is a reset button 52. The reset button 52 is pressed after cleaning (cleaning) of a filter and an ion generating element, which will be described later, and is integrated from the previous maintenance stored in the control unit (not shown) of the charged particle delivery device 1. It works to reset the time to zero. On the reset button 52, an indicator 53 for notifying that the filter maintenance time has come is arranged. Under the reset button 52, an indicator 54 for notifying that the time for maintenance of the ion generating element has come. The

indicators

53 and 54 are both constituted by LED lamps.

As shown in FIG. 10, a hooking hole 2 c having a so-called Dharma hole shape is formed on the back surface of the housing 2. If the hook hole 2c is hooked on a hook (not shown) protruding from the wall surface of the room, the charged particle delivery device 1 can be used while being held in the wall.

The bent portion of the blowout duct 21 is a region 21a that changes the direction of the airflow blown out from the exhaust port 30d and also makes the dynamic pressure of the airflow static. That is, the region 21a can be regarded as an airflow direction conversion region if attention is focused on changing the direction of the airflow, and can be regarded as a static pressure conversion region if attention is focused on changing the dynamic pressure to static pressure. By converting the dynamic pressure of the blown airflow into a static pressure, an effect that a part of the airflow expands to the full width of the blowout duct 21 is produced.

The charged particle generating element is disposed in the region 21a or behind it. In this embodiment, the charged particles are ions, and the ion generating element 40 is disposed as a charged particle generating element. The ion generating element 40 is blown out from the blower fan 30 and finally emits ions into the airflow blown out of the housing 2 from the blower outlet 2b. The ion generating element 40 is held by a holding member 45 that constitutes a part of the blowing duct 21.

As shown in FIG. 14, the ion generating element 40 has a thin box-like housing in the front-rear direction, and the front surface of the housing (the rear surface in terms of the orientation of the charged particle delivery device 1 as a whole). A pair of left and right needle-like discharge electrodes 41 serving as an ion generating portion protrudes from the surface facing to the blower fan 30. The discharge electrode 41 generates ions by corona discharge.

Specifically, the ion generating element 40 has a discharge electrode 41 directly above the bent portion 45a, more precisely, the bent portion 45a and a straight portion of the outlet duct 21 that connects the bent portion 45a to the outlet 2b. Although it is supposed to be located immediately after the connecting portion, that is, the region 21a, it may be located in the middle of the bent portion 45a, that is, in the region 21a.

One of the pair of discharge electrodes 41 is a positive ion generator that is a positively charged particle generator, and the other is a negative ion generator that is a negatively charged particle generator, and is arranged at a predetermined distance in the horizontal direction. Yes. The interval between the pair of discharge electrodes 41 is wider than the width of the exhaust port 30 d of the blower fan 30. In other words, each of the pair of discharge electrodes 41 is disposed outside the air flow blowing width of the blower fan 30.

In order to enable the arrangement of the discharge electrode 41 as described above, the holding member 45 is connected to the exhaust port 30d of the blower fan 30 from the opening 45b having substantially the same width as the exhaust port 30d (the charged particle delivery device). The front portion in the direction of one whole is a symmetrically extending portion 45c. The discharge electrode 41 is positioned in the lateral width of the overhanging portion 45c. The blowout duct 21 extends to the outlet at the upper end with the same lateral width as the overhanging portion 45c on the downstream side of the overhanging portion 45c.

An electrode protection plate 40b for preventing the discharge electrode 41 from coming into contact with another object is attached to the front surface of the housing. For this reason, there is no need to worry that the discharge electrode 41 hits another object and deforms. A circular through hole 40 c is formed in the electrode protection plate 40 b at a location corresponding to the front surface of the discharge electrode 41. At least a part of the air passing through the region 21a flows between the housing of the ion generating element 40 and the electrode protection plate 40b. Another part of the air passing through the region 21 a passes through the through hole 40 and is blown to the discharge electrode 41. The shape of the through hole 40 is circular in this embodiment, but may be other shapes.

Thus, since the power switch 18 of the blower fan 30 can be switched on or off in accordance with the movement of the wind direction plate 10 opening or closing the air outlet 2b, the operation button or operation lever of the power switch 18 is switched. Need not be provided on the outer surface of the housing 2, and the design of the charged particle delivery device 1 can be made clean. Further, if the position of the wind direction plate 10 is seen, the switching state of the power switch 18 can be known at a glance even from a distance.

Next, the operation of the charged particle delivery device 1 will be described. If the wind direction plate 10 is pushed into the pop-up state with the power cord 5 connected to the power source, the power switch 18 is turned on and the blower fan 30 starts rotating. The ion generating element 40, the LED 26, and the air volume indicator 51 are also energized, the ion generating element 40 starts generating ions, the LED 26 starts illuminating the light guide plate 25, and the air volume indicator 51 is set at that time. Start displaying the air volume.

The air sucked into the casing 30a is sucked into the sirocco fan 30e, discharged from between the fan blades of the sirocco fan 30e, and blown out from the exhaust port 30d. The air blown out in the horizontal direction from the exhaust port 30d enters the blowout duct 21, and is redirected to a vertical airflow toward the blowout port 2b in the region 21a. Along with this change in direction, the dynamic pressure of the airflow is converted into a static pressure. Once the dynamic pressure is converted to static pressure, the airflow rises inside the blowout duct 21, and ions generated from the ion generating element 40 are mixed in the air in the middle.

Passing through the discharge electrode 41 while entraining ions generated by the discharge electrode 41 is air whose dynamic pressure has been converted to static pressure in the region 21a. In the region 21a, the velocity component of the airflow once disappears, and an airflow directed toward the discharge electrode 41, which is an ion generating portion, is generated by static pressure from there. Therefore, the direction of the airflow blown from the blower fan 30 passes through the discharge electrode 41. Does not significantly affect the amount of airflow. Therefore, even if the discharge electrode 41 is disposed outside the air blowing width of the blower fan 30, a sufficient air flow passing through the discharge electrode 41 can be secured and ions can be efficiently delivered.

Since the discharge electrode 41 is disposed on the outer peripheral side of the bent portion of the blowing duct 21, a portion having a large velocity component passes through the periphery of the discharge electrode 41 in the airflow passing through the region 21a. For this reason, ions can be delivered efficiently.

At least part of the air passing through the region 21a flows between the housing of the ion generating element 40 and the electrode protection plate 40b. Therefore, the presence of airflow passing through the discharge electrode 41 is ensured, and ions generated at the discharge electrode 41 can be reliably delivered.

Other part of the air passing through the region 21 a passes through the through hole 40 and is blown to the discharge electrode 41. This also ensures the existence of the airflow passing through the discharge electrode 41, and the ions generated at the discharge electrode 41 can be reliably delivered.

In this manner, the ion generating element 40 is located in the region 21a where the horizontal air flow blown out from the blower fan 30 is converted into a vertical air flow toward the outlet 2b and the dynamic pressure of the air flow is static or behind it. Since it is arranged, it is not necessary to lengthen the blowing duct 21 which is a blowing path in the vertical direction for the arrangement of the ion generating element 40, and the height of the charged particle delivery device 1 can be suppressed.

Among the regions 21a and the vicinity thereof, the connecting portion between the bent portion 45a and the straight portion of the blowout duct 21 that connects the bent portion 45a to the outlet 2b is “the dynamic pressure of the blown airflow is converted into a static pressure. Thus, it is a place where the effect that “a part of the airflow spreads to the full width of the blowout duct 21” is most easily obtained, and the most suitable place for suppressing the height of the charged particle delivery device 1. Therefore, by disposing the ion generating portion of the ion generating element 40 at this location, the disappearance due to recombination of positive ions and negative ions can be further reduced, and the height of the charged particle delivery device 1 can be suppressed. it can.

If the front surface of the charged particle delivery device 1 is directed toward the user, the air flow including ions concentrates around the user, and the user is given both a physical cooling sensation by the wind and a cooling sensation by the ions. It will be. The ions also sterilize and deodorize around the user. Furthermore, air circulation occurs in the room by the air flow blown out from the charged particle delivery device 1, and sterilization and deodorization are promoted throughout the room.

When the power switch 18 is turned on, the LED 26 is turned on, and the LED 26 emits light in the horizontal direction. The light emitted from the LED 26 enters the light guide plate 25 from the incident surface 25a. Since the light guide plate 25 is processed to reflect light upward, the light changes its direction inside the light guide plate 25 and strikes the lower surface 10 a of the wind direction plate 10. The light is reflected radially on the lower surface of the wind direction plate 10 and indirectly illuminates the periphery of the charged particle delivery device 1. Since light is not reflected upward at the location of the communication port 25b, there is little light hitting the front portion of the lower surface 10a of the wind direction plate 10, and the user in front of the charged particle delivery device 1 does not feel glare.

When the use of the charged particle delivery device 1 is finished, the wind direction plate 10 is pushed down to return from the pop-up state of FIG. 1 to the storage state of FIG. Then, the power switch 18 is turned off, and the blower fan 30 and the ion generating element 40 stop operating. The LED 26 and the air volume indicator 51 are turned off.

When the charged particle delivery device 1 is used for a long time, the dust is deposited on the filter 23 and the ion generating element 40 needs to be maintained. When the accumulated usage time that is a guideline for cleaning the filter 23 is reached, the control unit (not shown) of the charged particle delivery device 1 turns on the indicator 53. When the accumulated usage time that is a guide for the care of the ion generating element 40 is reached, the control unit turns on the indicator 54.

In order for the user who sees the lighting of the

indicator

After the maintenance is completed, the ion generating element 40 is attached to the holding member 45 again, and the holding member 45 is returned to the original position. When the holding member 45 is placed in a predetermined position that becomes a part of the blowing duct 21, the connection terminal 40 a comes into contact with the terminal portion 42, and electrical connection to the ion generating element 40 is established. If the bottom plate 3 is fixed to the housing 2 and the plug 6 of the power cord 5 is connected to the terminal 35, the charged particle delivery device 1 becomes usable again.

The present invention can be widely used for a desktop type blower and a charged particle delivery device.

1 Blower (charged particle delivery device)
2 Housing

2a Suction port

2b Air outlet 3 Bottom plate 3a Insertion hole 4 Rubber leg 5 Power cord 6 Plug 8 Outflow part 10 Wind direction plate 11 Sleeve (slide body)
12 engaging member 16 compression coil spring (biasing means)
17 Shaft portion 18 Power switch 19 Locking means 20 Suction duct 21 Blowout duct (blower passage)
21a area 22 second outlet duct 22b recess 23 filter 25 light guide plate

25a incident surface

25b communication port 25c wind direction variable portion 26 LED
DESCRIPTION OF SYMBOLS 30 Air blower 30a Casing 30b, 30c Inlet port 30d Exhaust port 32 Duct member 32a Fan holding | maintenance part 32b Opening part 34 Circuit board 35 Terminal part 40 Ion generating element (charged particle generating element)
40b Electrode protective plate 41 Discharge electrode (charged particle generating part)
42 Terminal portion 45 Holding member

45a Bending portion

45c Overhang portion 45d Airflow branching portion

Claims

A housing in which an inlet and an outlet are formed;
A blower fan disposed in the casing that forms an airflow that is sucked into the casing from the inlet and blown out of the casing from the outlet;
A wind direction plate disposed at the outlet and displaceable between a position for opening the outlet and a position for closing the outlet;
A power switch of the blower fan that is turned on when the wind direction plate comes to a position for opening the air outlet, and turned off when the wind direction plate comes to a position for closing the air outlet;
The air blower characterized by comprising.
The air outlet is opened when the wind direction plate is displaced so as to jump out of the housing, and the air outlet is closed when the wind direction plate is displaced so as to be pushed into the housing. The blower described in 1.
The blower according to claim 2, wherein the wind direction plate is attached to a slide body slidable with respect to the housing, and the power switch is turned on / off in conjunction with the slide of the slide body. apparatus.
There are provided urging means for urging the slide body toward the outside of the casing, and push-on / push-off locking means for retaining the slide body against the urging force of the urging means. The blower according to claim 3.
The blower according to claim 4, wherein a biasing force of the biasing unit is set so that the power switch is turned off when the power outlet switch is in a state where the blower outlet is placed downward. .
The blower according to any one of claims 1 to 5, wherein the outlet is formed on an upper surface of the casing.
The blower according to any one of claims 1 to 6, wherein the air outlet has a circular shape and the wind direction plate has an umbrella shape.
In the blower installed on the installation surface where the installation part provided on one side of the enclosure comes into contact with the blower fan in the case with the inlet and outlet open, it has a plug at one end to supply power A power cord, and a terminal portion provided on one surface of the housing so that the plug is detachably inserted and faces the installation surface, and when the installation portion and the plug are in contact with the installation surface And the plug and the terminal portion are electrically connected to each other.
A plate portion detachably attached to the housing; the plug is inserted into the terminal portion through an insertion hole opening in the plate portion; and the plate portion is detachably formed by detaching the plug. The air blower according to claim 8.
10. The blower according to claim 9, further comprising a charged particle generating element that generates charged particles, wherein the charged particle generating element can be attached and detached when the plate portion is removed.
The air blower according to claim 9 or 10, further comprising a filter facing the suction port, wherein the filter can be attached and detached when the plate portion is removed.
A housing having an intake port and an air outlet opened, a blower fan disposed in the housing and covered by a casing having an air inlet and an exhaust port opened, a duct communicating the exhaust port and the air outlet, and In a blower including a charged particle generating element that generates charged particles in a duct and a holding member that holds the charged particle generating element, the holding member forms a part of the duct adjacent to the exhaust port. In addition, the blower device is arranged so as to be detachable integrally with the charged particle generating element with respect to the casing.
The blower according to claim 12, wherein a bottom plate of the casing is detachably provided, and the holding member can be attached and detached by removing the bottom plate.
The blower according to claim 13, wherein the exhaust port is provided in the vicinity of the bottom plate.
The air blower according to claim 13 or 14, wherein the holding member forms a bent portion that bends upward the airflow blown from the exhaust port in parallel to the bottom plate.
The blower according to any one of claims 13 to 15, wherein a connection terminal is provided on an upper surface of the charged particle generating element.
A housing,
A suction port formed in the housing;
An air outlet formed in the upper surface of the housing;
A blower fan disposed in the casing that forms an airflow that is sucked into the casing from the inlet and blown out of the casing from the outlet;
A charged particle generating element that discharges charged particles into the airflow from the blower fan;
In the air passage extending from the blower fan to the blowout port, an area is formed in which the airflow blown from the blower fan is directed in the direction of the blowout outlet and the dynamic pressure of the airflow is made static pressure, A charged particle delivery device, wherein the charged particle generating element is disposed on the side.
The charged particle delivery device according to claim 17, wherein the charged particle generating element is disposed in the region or immediately after the region.
The charged particle delivery device according to claim 17 or 18, wherein the region is a bent portion formed in the air passage.
The outer peripheral side of the bent part is a curved surface that gently transitions from the blowing direction of the blower fan to the direction of the outlet, and the charged particle generating element is disposed on the outer peripheral side of the bent part. The charged particle delivery device according to claim 19.
21. The charged particle delivery device according to claim 19 or 20, wherein the charged particle generating element is disposed at a connection portion between the bent portion and a duct that communicates the bent portion with the air outlet.
The charged particle generating element has a positively charged particle generating part and a negatively charged particle generating part, and the positively charged particle generating part and the negatively charged particle generating part are arranged at a predetermined distance in the horizontal direction. The charged particle delivery device according to any one of claims 17 to 21, characterized in that
The charged particle delivery according to claim 22, wherein the bent portion is formed with an airflow branching portion that distributes the airflow from the blower fan to the positively charged particle generating portion and the negatively charged particle generating portion. apparatus.
23. The charged particle delivery device according to claim 22, wherein the positively charged particle generator and the negatively charged particle generator are disposed outside an air flow blowing width of the blower fan.
The positively charged particle generating unit and the negatively charged particle generating unit are needle-like discharge electrodes protruding from the surface of the charged particle generating element facing the blower fan, and the discharge electrodes are external objects. The charged particle delivery device according to any one of claims 22 to 24, wherein an electrode protection plate for preventing contact with the electrode is attached to a casing of the charged particle generating element.
26. The charged particle delivery device according to claim 25, wherein at least a part of the air passing through the region flows between a case of the charged particle generating element and the electrode protection plate.
The charged particle delivery device according to claim 25 or 26, wherein a through hole is formed in the electrode protection plate at a location corresponding to the front surface of the discharge electrode.