JP5424739B2 - Ion generator - Google Patents

Description

  The present invention relates to an ion generating apparatus that performs static elimination or charging by sending ions generated in an ion generating element on a wind generated by a fan or the like.

  In the ion diffusing device described in Patent Document 1, air sent from the fluid feeder passes through the fluid flow path and is sent out from the outlet located at the tip thereof. The fluid flow path has an enlarged tube portion whose width increases as the distance from the fluid feeding device increases, and a plurality of guide plates for guiding air are arranged inside the enlarged tube portion. As a result, the air that has flowed into the fluid flow path from the fluid feeding device is guided by the side wall surface and the guide plate of the magnifying pipe part, and is diffused in the width direction of the magnifying pipe part.

JP 2005-83650 A

  However, as described above, the ion diffusing apparatus described in Patent Document 1 can only send ions widely in the width direction of the expansion tube portion. For example, ions are distributed so widely in the width direction of the expansion tube portion. However, it is not possible to send ions in other ways, such as sending them far ahead.

  An object of the present invention is to provide a static eliminator capable of delivering ions in a plurality of different modes.

An ion generator according to a first aspect of the present invention is directed to a blowing unit that sends out wind, a blowout port that blows out the wind sent from the blowing unit, and a wind sent from the blowing unit toward the blowout port. An ion generator that includes a duct that guides and an ion generation space in which an ion generation element is disposed, and that sends out ions generated in the ion generation space on the wind from the air blowing unit to the outside. A duct unit in which two ducts having different internal shapes are formed, the duct unit being detachable, and by changing a mounting direction, according to one of the two ducts Optionally, the wind sent from the blowing means is configured to be guided toward the outlet.

According to this, the duct unit is detachable, and by changing the mounting direction, ions can be sent out in a plurality of different modes, which is the object of the present invention.

An ion generator according to a second aspect of the present invention is a blower for sending wind in a predetermined direction from a blower port , an inlet for introducing the wind sent from the blower, and sends the wind And a plurality of ducts having internal shapes different from each other for connecting an ion generation space in which an ion generation element is disposed, and the air blowing port and the introduction port. The duct unit is configured to selectively connect the air blowing port and the introduction port by any one of the plurality of ducts, and the duct unit. Is detachable, and has two ducts arranged in a second direction orthogonal to the first direction in the mounted state as the plurality of ducts, and relates to the second direction. It is possible to attach even if the direction is reversed, and the air blowing port and the introduction port can be selectively connected by one of the two ducts by changing the mounting direction. be those you characterized being.

According to this, the air blowing port of the air blowing means and the introduction port of the ion generating space can be selectively connected by any one of the plurality of ducts having different shapes formed in the duct unit. Wind can be introduced into the generation space, and as a result, ions can be delivered from the delivery port in a plurality of different ways.
Further , according to this, by changing the mounting direction of the duct unit in the second direction, the air blowing port and the introduction port can be selectively connected by one of the two ducts provided in the duct unit. Thereby, wind can be introduced into the ion generation space in two ways.
An ion generator according to a third aspect of the present invention is the ion generator according to the first or second aspect of the present invention, wherein one of the two ducts is such that the wind flowing through the internal space is widely diffused in the left-right direction. The other duct has an inner shape such that the wind flowing in the inner space is narrower in the left-right direction and diffused farther than the one duct. It is.

According to the present invention, the duct unit is detachable, and by changing the mounting direction, ions can be delivered in a plurality of different modes that are the object of the present invention.

It is a schematic block diagram of the static elimination apparatus which concerns on embodiment of this invention. It is the figure which looked at the static elimination apparatus of FIG. 1 from upper direction. It is the figure which looked at the static elimination apparatus of FIG. 1 from the downward direction. It is the figure which looked at the static elimination apparatus of FIG. 1 from the side of the near side of FIG. It is the VV sectional view taken on the line of FIG. FIG. 6 is a sectional view taken along line VI-VI in FIG. 5. It is a perspective view of the duct unit of FIG. FIG. 7 is a view corresponding to FIG. 6 in a modified example. It is a figure equivalent to FIG. 7 in one modification. It is a figure which shows the static elimination time at the time of using the duct by which the pin is arrange | positioned in internal space. It is a figure which shows the static elimination time at the time of using the duct by which the rib was arrange | positioned in internal space. It is a figure which shows detailed arrangement | positioning of the rib in the internal space of a duct. It is a figure which shows the static elimination time at the time of using the duct in which the pin or the rib is not arrange | positioned.

  Hereinafter, preferred embodiments of the present invention will be described.

  First, the external appearance of the static elimination apparatus (ion generator) which concerns on this Embodiment is demonstrated. FIG. 1 is a perspective view showing the appearance of the static eliminator according to the present embodiment. FIG. 2 is a view of the static eliminator of FIG. 1 as viewed from above. FIG. 3 is a view of the static eliminator of FIG. 1 as viewed from below. FIG. 4 is a view of the static eliminator of FIG. 1 as viewed from the front side. In the following description, the front-rear direction, the left-right direction, and the up-down direction are respectively defined as shown in FIG.

  As shown in FIGS. 1 to 4, the static eliminator 1 includes a main body case 2, a lid 3, and a stand 4. The main body case 2 is a case having a substantially rectangular parallelepiped shape with an upper surface opened. On the front surface of the main body case 2, a power switch 12, an air volume changeover switch 13, a display lamp 14, and a blowout port 34 a of a blowout channel 34 described later are provided.

  The power switch 12 is for switching on and off of the static eliminator 1. The air volume switching switch 13 is for switching the air volume (specifically, the rotational speed of a motor 42 to be described later) blown from the air outlet 34a. The display lamp 14 indicates the operation state of the static eliminator 1.

  A plurality of air inlets 15 and 16 are formed on the lower surface of the main body case 2. The plurality of air inlets 15 are substantially elliptical through holes whose longitudinal direction is the front-rear direction, and are arranged in the left-right direction in the vicinity of the front end portion on the lower surface of the main body case 2. The plurality of intake ports 15 are for introducing air into an intake passage 73 (see FIG. 5) described later.

  The plurality of intake ports 16 are through-holes extending in the left-right direction, and are arranged in two rows in the front-rear direction. Further, among the plurality of air inlets 16 arranged in the front-rear direction, the one arranged in the center portion has a smaller width (length in the front-rear direction) than the one arranged outside of these. Yes. The plurality of intake ports 16 are for introducing air into a cross flow fan 41 (see FIG. 5) described later.

  The lid 3 is disposed on the upper surface of the main body case 2 and closes the opening on the upper surface of the main body case 2. The lid 3 is formed with a plurality of air inlets 17 and through holes 18. The plurality of intake ports 17 are through-holes having a substantially elliptical shape similar to the intake port 15, and are arranged in the left-right direction near the front end portion of the lid 3. The plurality of intake ports 17 are for introducing air into an intake passage 72 (see FIG. 5) described later.

  The through hole 18 is formed in a rear portion of the lid 3 with respect to the plurality of air inlets 17. The through hole 18 is for exposing display portions 62a and 63a of the duct unit 50 described later.

  The stand 4 is a plate-like body that is attached to both the left and right side surfaces of the main body case 2 and extends in the vertical direction, and has a lower end bent about 90 ° toward the main body case 2 in the left-right direction. The upper end of the stand 4 has an arc shape when viewed from the left-right direction, and the main body case 2 is rotatably supported by a shaft 21 that overlaps the center of the arc when viewed from the left-right direction. The user can rotate the main body case 2 by operating a substantially cylindrical knob 22 provided on the stand 4 with the shaft 21 as the center.

  In addition, three slits 23 are formed in the stand 4 along a single circle having the same center as that of the arc, just below the upper end of the arc. Here, on the side surface of the main body case 2, three screw holes 24 are formed in portions overlapping with the slits 23, and these three screw holes 24 can be moved to any position when the main body case 2 is rotated. At least one of these is arranged so as to be exposed from the slit 23. The main body case 2 can be fixed to the stand 4 by attaching the screw 25 to one of the three screw holes 19 and tightening the screw 25.

  Here, if there is only one screw hole 24, when the main body case 2 is rotated, as shown in FIG. 4 (b), the screw hole 24 comes to a portion between the slits 23, and the screw 25, the main body case 2 may not be fixed to the stand 4. However, in this embodiment, as described above, the three screw holes 24 are provided on the side surface of the main body case 2, and at least one of the three screw holes 24 is always exposed from the slit 23. Therefore, the main body case 2 can be fixed to the stand 4 by attaching the screw 25 to the screw hole 24 exposed from the slit 23, regardless of the position where the main body case 2 is rotated.

  In the present embodiment, the three screw holes 24 are formed. However, the position where at least one screw hole 24 is exposed from the slit 23 when the main body case 2 is rotated to any position. 2 or 4 or more screw holes 24 may be formed.

  In addition, an instruction mark 26 is drawn on the upper end portion of the stand 4, and a scale indicating an angle over the entire circumference of the side surface of the main body case 2 along the same circle as the arc that defines the upper end of the stand 4. 27 is drawn. Thereby, the rotation angle of the main body case 2 can be known from the value of the scale 27 indicated by the instruction mark 26.

  Next, the inside of the main body case 2 will be described. 5 is a cross-sectional view taken along line VV in FIG. 6 is a sectional view taken along line VI-VI in FIG. FIG. 7 is a perspective view of the duct unit of FIG.

  As shown in FIG. 1 to FIG. 7, a blower mechanism 31 is disposed inside the main body case 2, and a duct unit mounting portion 32, an ion generation space 33, a blowout flow path 34, and a control circuit 35 are formed. ing.

  The blower mechanism 31 is disposed at the rear end portion inside the main body case 2 and includes a cross flow fan 41, a motor 42, and a flow path 43. The cross flow fan 41 extends so that the left-right direction is the longitudinal direction, and is disposed at a substantially central portion in the left-right direction at the rear end portion of the main body case 2. Since the structure of the cross flow fan 41 is the same as that of the prior art, the detailed description thereof is omitted here. The motor 42 is disposed on the right side of the cross flow fan 41, and the cross flow fan 41 is rotated by the rotation of the motor 42. Then, by the rotation of the cross flow fan 41, air is introduced from a plurality of intake ports 16 formed on the lower surface of the main body case 2, and the introduced air is sent to the flow path 43.

  Here, as described above, the plurality of air intake ports 16 are smaller in width than those arranged in the central part in the front-rear direction than those arranged outside these, A small width of the intake port 16 faces a portion near the lower end portion of the cross flow fan 41, that is, a portion where the distance from the lower end of the main body case 2 is short in the vertical direction. Accordingly, it is possible to prevent a finger or the like from entering the inlet 16 facing the portion near the lower end of the cross flow fan 41 and the finger or the like from coming into contact with the cross flow fan 41.

  On the other hand, by increasing the width of the inlet 16 facing the portion of the cross flow fan 41 that is away from the lower end of the main body case 2, the amount of air introduced when the cross flow fan 41 is rotated is increased. ing.

  At this time, unlike the inlet 16 of the present embodiment, each of the inlets extends in the front-rear direction orthogonal to the extending direction of the cross flow fan 41 and has a plurality of inlets arranged in the left-right direction. In order to obtain the same effect as described above, in each intake port 16, the width of the portion facing the lower end portion of the cross flow fan 41 is reduced and the width of the other portions is increased. It is necessary to change the width of each part of the intake port.

  However, in the present embodiment, the plurality of intake ports 16 extend in the left-right direction parallel to the extending direction of the cross flow fan 41 and are arranged in the front-rear direction orthogonal to the extending direction of the cross flow fan 41. Therefore, the width may be changed between the intake ports 16, and the width of each intake port 16 can be made constant. Thereby, the shape of the intake port 16 can be simplified.

  The flow path 43 extends forward from the upper end of the cross flow fan 41, and the tip of the flow path 43 serves as a blower opening 43a. As a result, the wind sent from the cross flow fan 41 to the flow path 43 is sent forward (first direction) from the air outlet 43a, as indicated by an arrow W in FIG.

  The duct unit mounting portion 32 is disposed adjacent to the front of the blower mechanism 31, and its upper end is opened by removing the lid 3. In the duct unit mounting portion 32, the duct unit 50 can be attached and detached from this opening.

  The duct unit 50 includes two ducts 52 and 53 arranged in the vertical direction (second direction). In the following description of each part of the duct unit 50, the direction in which the duct unit 50 is mounted on the duct unit mounting portion 32 is the direction.

  The two fixed plates 51a and 51b are substantially rectangular plate-like bodies in which the duct unit 50 is mounted on the duct unit mounting portion 32 and the vertical direction is the long side direction and the front-rear direction is the short side direction. With respect to the left-right direction, the two ducts 52 and 53 are sandwiched therebetween. The ducts 52 and 53 are arranged in the vertical direction, and are fixed to the fixed plates 51a and 51b by being sandwiched between the two fixed plates 51a and 51b.

  In the present embodiment, the fixing plate 51a is located on the left side and the fixing plate 51b is located on the right side, and one of the ducts 52 and 53 is located on the upper side in the duct unit mounting portion 32 whose upper end is opened by removing the lid 3. The duct unit 50 is mounted in such a state.

  At this time, when the duct unit 50 is mounted so that the duct 52 is on the upper side, the air outlet 43a of the air blowing mechanism 31 is caused by the duct 52 as shown in FIGS. 5 (a) and 6 (a). Are connected to an ion generation space 33 (an inlet 33a described later).

  In this state, the duct 52 extends in the front-rear direction (first direction), and the width of the inner space 52a in the left-right direction increases and the width of the inner space 52a in the up-down direction decreases toward the front. Yes.

  Thus, in the internal space 52a, the cross-sectional area of the cross section perpendicular to the front-rear direction at the connection portion with the ion generation space 33 is smaller than the cross-sectional area at the connection portion with the air blowing port 43a. Alternatively, the length in the horizontal direction and the vertical direction of the internal space 52a in the connection portion with the air blowing port and the connection portion with the ion generation space 33 is such a length that the two cross-sectional areas are the same. Also good.

  As described above, the duct 52 has a cross-sectional area of the internal space 52 a at the connection portion with the ion generation space 33 that is equal to or smaller than a cross-sectional area of the internal space at the connection portion with the air outlet of the duct 52. The flow velocity of the wind introduced into the duct 52 through the duct 52 is suppressed from decreasing until it passes through the duct 52 and is sent to the ion generation space 33, and also promotes the diffusion of the wind in the left-right direction. can do.

  In the internal space 52a of the duct 52, a plurality of pins 56 extending in the vertical direction from the upper surface to the lower surface are arranged. The cross section of each pin 56 has a substantially circular shape when viewed from above and below. The plurality of pins 56 are located at the same position as the center of the duct 52 with respect to the left-right direction, and symmetrically along the arc A having a radius r centered at a point P located rearward of the duct 52. Are arranged so that the interval d is constant. Here, the plurality of pins 56 has a length of about 2/3 of the length in the connecting portion with the air blowing port 43a in the left-right direction at a portion of the internal space 52a that overlaps with the air blowing port 43a when viewed from the front-rear direction. Is arranged over.

  In such a duct 52, air also flows out between the two adjacent pins 56, 56, but the pin 56 itself becomes a resistance, so that the pin 56 is not disposed in the left-right direction in the internal space 52a. The flow path resistance at both end portions is smaller than the region where the pins 56 are disposed. Therefore, the wind flowing through the internal space 52a can easily flow toward the outside in the left-right direction with a small flow path resistance, and the wind flowing through the internal space 52a can be widely diffused in the left-right direction. At this time, since the plurality of pins 56 are arranged at equal intervals in the left-right direction, the wind flowing through the internal space 52a is diffused in the left-right direction.

  In addition, the direction of the wind flowing out between the two adjacent pins 56 is a direction perpendicular to the straight line connecting these two pins 56 when viewed from above and below, but the plurality of pins 56 extends along the arc A. When arranged, this direction is outward with respect to the left-right direction. Therefore, the wind flowing through the internal space 52a can be more efficiently diffused in the left-right direction.

  When the plurality of pins 56 are arranged at equal intervals in the left-right direction along the arc A, the extending direction of the arc A (direction perpendicular to the direction of the wind flowing between the two adjacent pins 56) The distance between the pins 56 becomes smaller toward the center of the duct 52 in the left-right direction. Thereby, in the area | region which overlaps with the some pin 56 seeing from the front-back direction of the internal space 52a, flow-path resistance becomes small as the outer part regarding the left-right direction. Therefore, the wind flowing through the internal space 52a is more likely to flow outward in the left-right direction, and the wind flowing through the internal space 52a can be more efficiently diffused in the left-right direction.

  On the other hand, the duct unit 50 with the duct 52 on the upper side is removed from the duct unit mounting portion 32, and the removed duct unit 50 is rotated 180 degrees up and down while maintaining the left-right direction so that the duct 53 becomes upper. As shown in FIGS. 5B and 6B, the air blowing port 43a and the ion generation space 33 (introduction port 33a described later) are connected by the duct 53. Is done.

  In this state, the duct 53 extends in the front-rear direction, and the width of the internal space 53 a in the left-right direction increases as the front increases, and the width of the internal space 53 a in the vertical direction decreases. However, in the internal space 53 a, the rate of change in the width in the left-right direction is smaller than that in the internal space 52 a of the duct 52.

  And thereby, the cross-sectional area of the cross section orthogonal to the front-back direction in the connection part with the ion generation space 33 of the internal space 53a is smaller than the said cross-sectional area in the connection part with the ventilation port 43a. Or the length regarding the left-right direction and the up-down direction of the internal space 53a in the connection part with the ventilation port 43a and the connection part with the ion generation space 33 is such a length that the two cross-sectional areas are the same. There may be.

  In the duct 53, as in the case of the duct 52, when the cross-sectional area of the internal space 53 a at the connection portion with the ion generation space 33 is equal to or smaller than the cross-sectional area of the internal space 53 a at the connection portion with the air outlet of the duct 52. The flow velocity of the wind introduced from the blower mechanism 31 into the duct 52 is suppressed from decreasing before it is sent to the ion generation space 33 through the internal space 53a.

  Further, no pin 56 is arranged in the internal space 53a. Thereby, the wind flowing through the internal space 53a is difficult to diffuse in the left-right direction, and the wind can be sent farther forward.

  A display mechanism 60 is disposed on the fixed plate 51b which is one of the two fixed plates 51a and 51b. The display mechanism 60 includes a base material 61 and display members 62 and 63. The base material 61 is a substantially rectangular plate-like body whose length in the front-rear direction is shorter than the fixed plate 51b, with the up-down direction as the long side direction and the front-rear direction as the short side direction, and is slidably supported in the up-down direction. Has been.

  When the duct unit 50 is mounted on the duct unit mounting portion 32 so that the duct 52 faces upward (in the state shown in FIG. 7A), the display member 62 is upward from the lower end portion when viewed from the front. Is a member that is bent about 90 ° to the left and extends to the left in the middle, and a portion extending in the vertical direction is fixed to the upper end of the base material 61 and extends to the left. A display portion 62a is formed on the upper surface of the portion. The display unit 62a has a substantially cylindrical shape, and a letter “W” indicating, for example, wide (English letter WIDE) is drawn on the surface thereof.

  In the state shown in FIG. 7A, the display member 63 is a member that extends downward from the upper end portion of the display member 63 and is bent about 90 ° to the left in the middle and extends to the left. A portion extending to the left is fixed to the lower end portion of the substrate 61, and a display portion 63a is formed on the lower surface of the portion extending leftward. The display unit 63a has a substantially cylindrical shape, and a character “S” indicating, for example, a straight (English character STRAIGHT) is drawn on the surface thereof.

  Then, as described above, when the duct unit 50 is mounted on the duct unit mounting portion 32 so that the duct 52 faces upward, the surface of the display portion 63a is pressed against the lower end portion of the main body case 2, thereby displaying the display mechanism. 60 moves upward. At this time, since the notch 51d is formed in the fixing plate 51b, the display mechanism 63 is formed on the surface of the display unit 63a because the bent portion of the display member 63 in which the display unit 63a is formed enters the notch 51d. Is moved upward until it becomes the same height as the lower end of the fixing plate 51b. At this time, the surface of the display portion 62a becomes almost the same height as the upper end of the main body case 2.

  When the lid 3 is attached to the main body case 2 in this state, the display unit 62 a is exposed from the through hole 18 formed in the lid 3. Thereby, the user can recognize that the air outlet 43 a and the ion generation space 33 are connected by the duct 52 by looking at the letter “W” displayed on the display unit 62 a.

  On the other hand, when the duct unit 50 is mounted on the duct unit mounting portion 32 so that the duct 53 is on the upper side, the display mechanism 60 moves upward by the surface of the display portion 62a being pushed by the lower end portion of the main body case 2. To do. At this time, since the notch 51c is formed in the fixing plate 51b, the display portion 60 is formed on the surface of the display unit 62a by the bent portion of the display member 62 on which the display unit 62a is formed entering the notch 51c. Moves upward until it becomes the same height as the lower end of the fixed plate 51b, and at this time, the surface of the display portion 63a becomes substantially the same height as the upper end of the main body case 2.

  When the lid 3 is attached to the main body case 2 in this state, the display portion 63 a is exposed from the through hole 18 formed in the lid 3. Accordingly, the user can recognize that the air blowing port 43 a and the ion generation space 33 are connected by the duct 53 by looking at the letter “S” displayed on the display unit 63 a.

  Here, in the present embodiment, the lower end of the duct unit 50 (one lower end of the fixing plates 51 a and 51 b) contacts the lower end of the main body case 2 in a state where the duct unit 50 is mounted on the duct unit mounting portion 32. In addition, the upper end of the duct unit 50 (the other upper end of the fixing plates 51a and 51b) is in a state of being separated from the upper end (the lid 3) of the main body case 2. For this reason, by allowing the display mechanism 60 to be slidable in the vertical direction along the fixed plate 51a, the display units 62a and 63a pass through regardless of the direction in which the duct unit 50 is mounted. It is exposed from the hole 18.

  Therefore, unlike the present embodiment, when the duct unit 50 is mounted on the duct unit mounting portion 32, when the upper ends of the fixing plates 51a and 51b are in contact with the lid 3, the display mechanism 60 is It may be fixed to the fixed plate 51b. In this case, it is not necessary to provide the notches 51c and 51d in the fixed plate 51b.

  The ion generation space 33 is a space that is disposed adjacent to the front of the duct unit mounting portion 32 and extends over substantially the entire length of the main body case 2 in the left-right direction. In the ion generation space 33, a substantially central portion in the vertical direction is a main flow channel 71 through which the wind sent from the ducts 52 and 53 flows, and portions located above and below the main flow channel 71 are main flow, respectively. Intake passages 72 and 73 for introducing air into the passage 71 are formed.

  The main flow path 71 is connected to the duct 52 or 53, and the ion generation space 33 connected to the blowing flow path 34 from the introduction port 33a provided at the rear end of the central portion in the vertical direction of the ion generation space 33. The wind extends from the duct 52 or 53 to the outlet 33b provided at the front end of the central portion in the vertical direction, and the wind sent from the duct 52 or 53 flows through the main flow channel 71 and is sent to the blowing flow channel 34.

  The intake passage 72 extends in the vertical direction from the above-described intake port 17 formed in the lid 3 to the main passage 71. An ion generating element 74 is disposed inside the intake flow path 72. The ion generating element 74 is, for example, a support in which a long ion generating substrate in the left-right direction in which a protective layer is formed on the surface of a dielectric material such as mica sandwiched between an induction electrode and a discharge electrode supports the ion generating substrate. The front side surface on which the discharge electrode is formed is an ion generation surface 74a that generates ions. In the ion generating element 74, negative ions are generated on the ion generating surface 74a by applying a negative high voltage pulse.

  Here, the ion generating element 74 is disposed so as to be separated from the main channel 71 by, for example, about 5 mm in the vertical direction. Further, the ion generation surface 74a is inclined by, for example, about 30 ° with respect to the front-rear direction so that the front portion is positioned downward.

  The intake passage 73 extends in the vertical direction from the above-described intake port 15 formed on the lower surface of the main body case 2 to the main passage 71. An ion generating element 75 is arranged inside the intake flow path 73. The ion generating element 75 has a structure similar to that of the ion generating element 74, and the front side surface on which the discharge electrode is formed is an ion generating surface 75a that generates ions. The ion generating element 75 is arranged so as to be separated from the main channel 71 by, for example, about 5 mm in the vertical direction. In the ion generating element 75, positive ions are generated on the ion generating surface 75a by applying a positive high voltage pulse. Further, the ion generation surface 75a is inclined by, for example, about 30 ° with respect to the front-rear direction so that the front portion is positioned higher.

  In the present embodiment, negative ions are generated by the ion generating element 74 and positive ions are generated by the ion generating element 75. On the contrary, positive ions are generated by the ion generating element 74. Further, negative ions may be generated by the ion generating element 75.

  Here, when wind flows through the main flow path 71, an air layer having a low atmospheric pressure is generated at the boundary surface between the main flow path 71 and the atmosphere, that is, the space forming the intake flow paths 72 and 73. Therefore, atmospheric pressure air flows into the air layer with low atmospheric pressure from the intake flow paths 72 and 73. As a result, in the intake flow paths 72 and 73, as indicated by arrows w in FIG. 5, air is introduced from the intake ports 15 and 17, and the introduced air flows toward the main flow path 71. At this time, since the air in the intake flow paths 72 and 73 passes over the ion generation surfaces 74a and 75a and then flows into the main flow path 71, the ions generated by the ion generation elements 74 and 75 are efficiently supplied to the main flow path 71. Can be put on the wind. Thereby, the ion generated in the ion generating elements 74 and 75 can be sent out efficiently.

Furthermore, since the ion generation surfaces 74a and 75a are inclined with respect to the front-rear direction as described above, air can flow smoothly between the intake flow paths 72 and 73 and the main flow path 71.
Further, the ions generated on the ion generation surfaces 74a and 75a have a variation in the distribution in the left-right direction immediately after the generation, but the ion generation surfaces 74a and 75a are inclined in the front-rear direction, so The ions can be evenly distributed in the left-right direction before ions flow into the air flowing over 74a and 75a.

  Therefore, by inclining the ion generation surfaces 74a and 75a with respect to the front-rear direction, the ions generated by the ion generation elements 74 and 75 can be efficiently and uniformly placed on the wind flowing through the main channel 71 in the left-right direction. it can.

  In addition, when there is no space between the main flow channel 71 and the ion generating elements 74 and 75, the wind of the main flow channel 71 flows backward to the intake flow channels 72 and 73, and when the space is too wide, the ions flow into the main flow channel 71. The suction effect is reduced. For this reason, the ion generating elements 74 and 75 are disposed so as to be separated from the main flow channel 71 by about 5 mm, for example, in the vertical direction so that such a backflow of the wind and a decrease in the suction efficiency of the ions do not easily occur.

  And when the ventilation opening 43a and the inlet 33a are connected by the duct 52, since the wind which flows through the internal space 52a is spread | diffused widely in the left-right direction as mentioned above, it is carried on this wind. The ions to be sent are also sent widely in the left-right direction. In this case, as described above, since the ions spread over the entire region in the left-right direction and flow into the wind flowing on the ion generation surfaces 74a, 75a, the ions can be sent out more widely in the left-right direction.

  On the other hand, when the air outlet 43a and the inlet 33a are connected by the duct 53, the wind is sent without being diffused in the left-right direction as described above. At this time, since the wind flowing through the internal space 53a does not collide with the pin 56, the flow velocity of the wind does not decrease so much. As a result, the ions that are sent out in this wind are sent out straight and far ahead with a relatively narrow width.

  Thus, in the static elimination apparatus 1, as described above, by changing the direction in which the duct unit 50 is mounted on the duct unit mounting portion 32, the air outlet 43a and the inlet 33a are connected by the duct 52; The duct 53 can be switched between the state in which the air blowing port 43a and the introduction port 33a are connected. This makes it possible to send ions wide in the left-right direction and to make the ions relatively narrow. It is possible to deal with any case where it is desired to send straight forward far in the width.

  More specifically, for example, when used when an operator works on a table, a wide range of static eliminations are performed so that ions can reach the target at any location on the table and the static elimination is performed. Is desired to be performed. In general, if the charge can be sufficiently removed to a width of about 700 mm, the surface of the table can be almost eliminated.

  On the other hand, when a space for installing the static elimination device 1 cannot be secured in the vicinity of the target and the target is far away, it is desirable to perform static elimination by installing the static elimination device at a position away from the target. At this time, there is a possibility that the positive ions and the negative ions delivered from the static eliminator 1 cancel each other because the object is located far away, but by increasing the ion delivery speed and reducing the amount of cancellation, Although the static elimination range is narrow, static elimination can be performed efficiently.

  On the other hand, as described above, the static eliminator 1 can send out ions in two different modes, and can easily cope with various applications.

  Further, the switching of the duct 52 or the duct 53 is performed by changing the mounting direction of the duct unit 50 to the duct unit mounting portion 32. In the present embodiment, the duct located below (in FIG. 5A) The duct 53, in FIG. 5B, the duct 52) is accommodated by effectively using the space in front of the cross flow fan 41, so that the static eliminator 1 can be provided even if the duct unit 50 having the two ducts 52, 53 is provided. There is no increase in size.

  The blow-out flow path 34 is a flow path that is disposed adjacent to the front of the ion generation space 33 and extends over substantially the entire length of the main body case 2 in the left-right direction, and is connected to the outlet 33 b of the ion generation space 33. At the same time, it extends in the front-rear direction from this connecting portion to a blowout port 34 a formed on the front surface of the main body case 2. Further, the blowout flow path 34 is provided with three louvers 81 that extend substantially over the entire length of the blowout flow path 34 in the left-right direction and are arranged in the vertical direction in the vicinity of the blowout opening 34a.

  Here, in the ion generating elements 74 and 75, a high voltage is applied to the electrodes in order to generate ions, and it is dangerous to touch the ion generating elements 74 and 75 with a finger or the like. In the embodiment, since the louver 81 is provided in the blowing channel 34, the ion generating elements 74 and 75 are prevented from being touched by a finger or the like.

  Further, as shown in FIG. 5, the louver 81 has substantially arcuate ends in the front-rear direction when viewed from the left-right direction. Thereby, the wind that has flowed through the blowout flow path 34 and collided with the louver 81 flows smoothly along the end of the louver 81 having an arc shape. Therefore, it is possible to suppress as much as possible that the wind flowing through the blowout flow path 34 collides with the louver 81 and the flow velocity of the wind decreases.

  In addition, an ion detection element for detecting ion balance generated by the ion generation elements 74 and 75 may be disposed in the blowout flow path 34. In such a case, it is possible to prevent the generation of eddy currents by making the both ends of the louver 81 in the front-rear direction substantially arc-shaped as seen from the left-right direction as described above, so that accurate measurement can be performed. Become.

  The control circuit 35 is disposed on the left side of the cross flow fan 41 at the rear end of the main body case 2. The control circuit 35 is for controlling the operation of the static eliminator 1 and controls lighting of the display lamp, control of the rotational speed of the motor 24, control of the voltages of the ion generators 74 and 75, and the like.

  4 shows another embodiment of a duct unit. In another embodiment, as shown in FIGS. 8 and 9, a plurality of ribs 91 are provided in the internal space 52 a of the duct 52 instead of the plurality of pins 56. The plurality of ribs 91 partition the internal space 52a. Each of the ribs 91 extends over the entire length of the internal space 52a in the front-rear direction and is arranged over the entire region in the left-right direction.

  Further, the plurality of ribs 91 are inclined with respect to the front-rear direction so that the front portion is positioned on the outer side in the left-right direction of the duct 52 when viewed from the vertical direction. Moreover, the space | interval regarding the left-right direction of the some rib 91 is mutually the same in each position regarding the front-back direction.

  Even in this case, with the duct 52 connected to the air inlet 43a and the inlet 33a, the wind flowing through the internal space 52a is guided by the ribs 91 and the left and right wall surfaces of the duct 52 and diffuses in the left and right directions.

  Next, examples according to the present invention will be described. FIG. 10 shows the static elimination time at each point in front of the static eliminator 1 when the static eliminator 1 is operated in a state in which the air outlet 43a and the introduction port 33a are connected by the duct 52 in which a plurality of pins 56 are arranged. FIG. 6A is a diagram illustrating a static elimination time when the object to be neutralized is positively charged, and FIG. Here, the static elimination time is defined by the time required to attenuate an object charged to + (or −) 1000V to + (or −) 100V.

  Further, in FIG. 10, curves indicating positions where the static elimination time is 2.0 seconds, 3.0 seconds, 4.0 seconds, 5.0 seconds, and 6.0 seconds are shown, respectively, and are described on the curves. Is the static elimination time.

  10 shows that the length of the internal space 52a of the duct 52 in the front-rear direction is 35 mm, the length in the left-right direction and the up-down direction in the connection portion with the air blowing port 43a is 150 mm and 34 mm, respectively, and the introduction port 33a. The lengths in the horizontal direction and the vertical direction at the connecting portion are 204.6 mm and 20 mm, respectively, the diameter of the pin 56 is 3 mm, the number of the pins 56 is 17, the radius r of the arc A is 150 mm, This is the result when the distance d between the pins 56 in the direction is 3 mm. At this time, the 17 pins 56 are arranged over 99 mm in the left-right direction. Further, in FIG. 10, only a part of the 17 pins 56 is shown for easy viewing of the drawing. The length of the discharge electrodes of the ion generating elements 74 and 75 installed in the ion generating space 72 in the left-right direction is 300 mm, which is longer than the introduction port 33a.

  FIG. 11 is a diagram illustrating a static elimination time distribution when the air blowing port 43a and the introduction port 33a are connected by the duct 52 in which the rib 91 is disposed. In FIG. 11, the shape of the internal space 52a is the same as that in FIG. 10, and the thickness of the rib 91 is 2 mm. As shown in FIG. This is a result in the case where the inner space 52a is arranged so as to be about 13.2 mm at the connection portion and about 18.5 mm at the connection portion with the introduction port 33a.

  FIG. 13 is a diagram showing a static elimination time distribution when the air blowing port 43 a and the introduction port 33 a are connected by the duct 53. In FIG. 13, the length in the left-right direction and the up-down direction at the connection portion of the internal space 53a of the duct 53 with the blower opening 43a is substantially the same as that of the internal space 52a of the duct 52, and in the left-right direction of the internal space 53a. This is a result when the wall surface is inclined about 11 ° with respect to the front-rear direction when viewed from the vertical direction.

  Further, when performing these measurements, negative and positive high voltage pulses are applied to the ion generating elements 74 and 75 with their phases shifted from each other at 300 Hz. The charge removal performance varies depending on variations in the characteristics of the ion generating elements, usage conditions of the ion generating elements 74 and 75 such as temperature and humidity, and the like. Therefore, the voltage applied in the measurement is about 300 seconds at a point located 300 mm forward from the outlet 34a of the static elimination device 1 and at the same position as the central portion of the duct 53 in the left-right direction. It is adjusted to such a value.

  Specifically, in the case of FIGS. 10, 11, and 13, applied voltages (voltages for generating negative ions) of the ion generating element 74 are −1.88 kV, −1.83 kV, −1. 94 kV and −1.83 kV. On the other hand, applied voltages (voltages for generating positive ions) of the ion generating element 75 are 2.42 kV, 2.53 kV, 3.03 kV, and 2.24 kV, respectively.

  10, 11, and 12, the wind speed is 300 mm forward from the outlet 34 a of the static elimination device 1 and the wind speed at the central portion of the duct 52 or 53 in the left-right direction is 1.05 m / s, respectively. 3.01 m / s, 5.48 m / s.

  From the results of FIGS. 10 and 11, when the air blowing port 43 a and the introduction port 33 a are connected by the duct 52 in which the pin 56 or the rib 91 is arranged in the internal space 52 a, the distribution of the static elimination time is short forward. Although it is, it can be seen that it has spread greatly in the left-right direction.

  In addition, from the result of FIG. 13, when the air blowing port 43a and the introduction port 33a are connected by the duct 53, the static elimination time distribution is narrow in the left-right direction but long in the front. Recognize.

  That is, as can be seen by comparing FIG. 10 and FIG. 13 or FIG. 11 and FIG. 13, FIG. 10 and FIG. 11 show that when the static eliminator 1 is used wide, FIG. The case where the apparatus 1 is used as a straight is shown. In this example, as is clear from FIG. 10 and FIG. 11, the characteristics of the neutralization time within 6 seconds are obtained in the range of +350 mm to −350 mm in the left-right direction at a distance of 600 mm to 800 mm in front of the static elimination device 1. In FIG. 13, the distance is 1200 mm or more in front of the static eliminator 1, and the range in the left-right direction is around +250 mm to −250 mm, but the range is narrow.

  Next, modified examples in which various changes are made to the present embodiment will be described.

  In the above-described embodiment, the duct 52 is capable of diffusing the wind widely in the left-right direction and wide, and can send the wind straight forward far without being diffused in the left-right direction. However, the combination of two ducts having different internal shapes provided in the duct unit 50 is not limited to this.

  In the above-described embodiment, the air outlet 43a and the inlet 33a are connected by the ducts 52 and 53 depending on the letters “W” or “S” of the display mechanism 60 exposed in the through hole 18 of the lid 3. However, it is also possible to display which duct is used for the connection according to another configuration such as display of the display lamp 14.

  Furthermore, the display means for displaying which of the ducts 52 and 53 is connected to the blowing port 43a and the introduction port 33a may not be provided.

  As mentioned above, although the static elimination apparatus was demonstrated as suitable embodiment of an ion generator, it cannot be overemphasized that this invention is applicable to the charging device which performs the predetermined charge to the target object put ahead with the produced | generated ion. However, in this case, both of the ion generating elements 74 and 75 generate the same ion for charging or one ion for charging only on one side.

DESCRIPTION OF SYMBOLS 1 Static elimination apparatus 31 Blower mechanism 43a Blower port 33 Ion generation space 33a Inlet port 33b Outlet 50 Duct unit 52, 53 Duct 60 Display mechanism

Claims (3)

A blowing means for sending out the wind;
A blow-out port for blowing out the wind sent from the blowing means to the outside of the apparatus;
A duct for guiding the wind sent from the blowing means toward the outlet;
An ion generation space in which an ion generation element is arranged, and
An ion generator that sends out ions generated in the ion generation space on the wind from the air blowing means and sends them out of the apparatus,
Comprising a duct unit in which two ducts having different internal shapes are formed;
The duct unit is
It is removable
Ions characterized in that, by changing the mounting direction, the wind sent from the blowing means is selectively guided toward the blowout port by one of the two ducts. Generator. A blowing means for sending wind in a predetermined first direction from the blowing port;
While having an inlet for introducing the wind sent out from the blowing means, and a delivery outlet for sending out the wind, an ion generation space in which an ion generating element is arranged,
A duct unit formed with a plurality of ducts having internal shapes different from each other for connecting the air blowing port and the introduction port;
The duct unit is configured such that the air blowing port and the introduction port can be selectively connected by any of the plurality of ducts,
The duct unit is
It is removable
The plurality of ducts include two ducts arranged in a second direction orthogonal to the first direction in the mounted state, and can be mounted even if the direction with respect to the second direction is reversed. And
By changing the orientation of mounting, and the blower outlet and the inlet, said two selectively features and to Louis on generator that is configured to be able to connect by either duct . Of the two ducts, one duct has an internal shape in which the wind flowing through the internal space is widely diffused in the left-right direction, and the other duct flows through the internal space as compared to the one duct. The ion generator according to claim 1 or 2, wherein the ion generator has an internal shape such that the wind is narrow in the left-right direction and diffused far away.