JP5349161B2 - 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, a separation boundary layer and a discharge surface protection member are provided on the discharge surface of the ion generator facing the blowing path through which the wind flows, or a recess and a step are provided in the blowing path. By arranging the ion generator so that the discharge surface comes to the surface of these recesses or steps, the air flowing through the air passage is prevented from directly hitting the discharge surface. It prevents the dirt that flows along with the wind from sticking. Then, ions generated on the discharge surface are separated by the wind flowing on the surface of the separation boundary layer or the discharge surface protection member, or are placed on the wind flowing through the air blowing path by the vortex generated in the concave portion or the stepped portion. .

JP-A-2005-95402

  However, in the ion generator described in Patent Document 1, the wind generated on the surface of the separation boundary layer or the discharge surface protection member, or the vortex generated in the concave portion or the step, sufficiently separates the ions generated in the ion generation device or the ventilation path. There is a possibility that it cannot be put on the wind.

  An object of the present invention is that the wind flowing through the main flow path does not directly hit the ion generating element, and the ions generated in the ion generating element can be efficiently sent on the wind flowing through the main flow path. An ion generator is provided.

The ion generating apparatus according to the first invention has a wider air duct, a blower means for delivering air from the blower opening in a predetermined first direction, for blowing wind the blowing means is sent, wide And a wide main flow path for guiding the wind sent from the blowing means to the blow-out opening, and taking in air from the outside by the wind flowing through the main flow path, and taking the taken-in air in the width direction of the main flow path It said to flow into the main flow path from the surface along a wide air passage, is configured in a plate-like elongated example Bei a, an ion generating device having an ion generating surface for generating ions, the ion generating element is of the intake passage, in a region which is spaced apart from the main channel with respect to a second direction perpendicular to the first direction, the ion generating surface is arranged so as to extend in the width direction The intake channel. The flowing air is configured to flow along the ion generation surface .

  According to this, since the ion generating element is arranged in the intake flow path so as to be separated from the main flow path in two directions, the air flowing through the main flow path does not directly hit the ion generating element, and the main flow path is combined with the wind. It is possible to prevent the flowing foreign matter from adhering to the ion generating element.

  In addition, when the wind flows through the main flow path, an air layer having a low atmospheric pressure is generated at the boundary surface between the main flow path and the space forming the intake flow path, and atmospheric air is supplied from the intake flow path to the low air pressure air layer. Flows in. As a result, air is introduced from the intake port into the intake flow path, and the introduced air flows toward the main flow path. Then, the ions generated in the ion generating element are carried to the main flow path by the air. Thereby, the ion generated by the ion generating element can be efficiently sent out from the outlet through the wind flowing through the main channel.

  An ion generation device according to a second invention is the ion generation device according to the first invention, wherein the ion generation element is separated from the main flow path by 2 to 10 mm with respect to the second direction. It is what.

  According to this, since the backflow to the intake flow path is prevented and the air suction effect to the main flow path is secured, the ions generated in the ion generating element by the air flowing into the main flow path from the intake flow path Is reliably transported to the main flow path.

Third ion generating apparatus according to the invention is the ion generating apparatus according to the first or second aspect, before Symbol ion generating element, the main flow path side surface about the second direction is generated ions ions It is a generation surface, and the ion generation surface is inclined with respect to the first direction so as to approach the main flow path with respect to the second direction as it approaches the outlet with respect to the first direction. It is a feature.

  According to this, since the ion generation surface is inclined with respect to the first direction, air can smoothly flow into the intake passage and the main passage. In addition, the ions generated on the ion generation surface have a variation in the distribution in the direction orthogonal to the first and second directions immediately after the generation, but the ion generation surface is inclined due to the inclination of the ion generation surface. It is possible to distribute the ions generated by the ion generating element evenly in the above direction and then flow into the air flowing on the ion generating surface. It can be put on the wind flowing through the road.

  An ion generator according to a fourth invention is the ion generator according to the third invention, characterized in that the ion generation surface is inclined by 10 to 45 ° with respect to the first direction. To do.

  According to this, a more preferable effect is obtained when the ion generation surface is inclined by 10 to 45 ° with respect to the first direction.

  According to the present invention, since the ion generating element is disposed in the intake flow path so as to be separated from the main flow path in two directions, the wind flowing through the main flow path does not directly hit the ion generating element, It is possible to prevent foreign matters flowing along with the wind from adhering to the ion generating element.

  In addition, when the wind flows through the main flow path, an air layer having a low atmospheric pressure is generated at the boundary surface between the main flow path and the space forming the intake flow path, and atmospheric air is supplied from the intake flow path to the low air pressure air layer. Flows in. As a result, air is introduced from the intake port into the intake flow path, and the introduced air flows toward the main flow path. Then, the ions generated in the ion generating element are carried to the main flow path by the air. Thereby, the ion generated by the ion generating element can be efficiently sent out from the outlet through the wind flowing through the main channel.

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. It is a figure which shows the static elimination time when the inclination | tilt angle with respect to the front-back direction of an ion generating surface is 15 degrees. It is a figure which shows the static elimination time when the inclination | tilt angle with respect to the front-back direction of an ion generating surface is 30 degrees. It is a figure which shows the static elimination time when the inclination | tilt angle with respect to the front-back direction of an ion generating surface is 45 degrees. FIG. 8 is a view corresponding to FIG. 7 when a pin is arranged in the internal space of the duct. It is a figure which shows the static elimination time at the time of using the duct of FIG.

  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. 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.

  A plurality of ribs 56 are arranged in the internal space 52 a of the duct 52. The plurality of ribs 56 divide the internal space 56a. Each of the ribs 56 extends over the entire length of the internal space 52a with respect to the front-rear direction and is arranged over the entire region in the left-right direction.

  Further, the plurality of ribs 56 are inclined with respect to the front-rear direction so that the front part is positioned on the outer side in the left-right direction of the duct 52 as viewed from the upper-lower direction. As a result, the wind flowing through the internal space 52a is guided by the left and right wall surfaces of the rib 56 and the duct 52 and diffuses in the left and right direction. Moreover, the space | interval regarding the left-right direction of the some rib 56 is mutually the same in each position regarding the front-back 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.
Also in the duct 53, as in 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 less than the cross-sectional area of the internal space 53 a at the connection portion with the air outlet of the duct 52, It is suppressed that the flow velocity of the wind introduced into the duct 52 from the mechanism 31 is reduced before passing through the internal space 53a and being sent to the ion generation space 33.

  Moreover, the rib 56 is not arrange | positioned 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. It is attached to the body, and 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 arranged at a distance d from the main channel 71 in the vertical direction (second direction) in a portion of the intake channel 72 in front of the intake port 17. In addition, 2-10 mm is suitable for the distance d. In addition, the ion generation surface 74a is inclined by an angle a with respect to the front-rear direction so that the front portion is positioned downward. Here, the angle a is, for example, about 10 to 45 °.

  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 the same structure as 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. In the ion generating element 75, positive ions are generated on the ion generating surface 75a by applying a positive high voltage pulse.

  Here, the ion generating element 75 is arranged at a distance forward from the main channel 71 in the vertical direction (second direction) in a portion in front of the intake port 15 of the intake channel 73. In addition, 2-10 mm is suitable for the distance d. In addition, the ion generation surface 75a is inclined by an angle a with respect to the front-rear direction so that the front portion is positioned higher. Here, the angle a is, for example, about 10 to 45 °.

  Now, 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 through the intake air channels 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.

  Since the ion generating elements 74 and 75 are disposed in the intake flow paths 72 and 73 so as to be separated from the main flow path 71 in the vertical direction, the wind flowing through the main flow path 71 is directly applied to the ion generating elements 74 and 75. It is possible to prevent foreign matter flowing along with the wind in the main flow path 71 from adhering to the ion generating elements 74 and 75 (ion generating surfaces 74a and 75a) without hitting them.

  Further, when there is no gap between the main flow channel 71 and the ion generating elements 74 and 75, there is a possibility that the wind in the main flow channel 71 flows backward to the intake flow channels 72 and 73. If the interval is too wide, the atmospheric pressure difference between the main flow channel 71 and the intake flow channels 72 and 73 becomes small, so that the ion suction effect is reduced. Accordingly, 2 to 10 mm is appropriate as the interval, and a preferable interval with the best balance is about 5 mm.

  Further, since the ion generation surfaces 74a and 75a are inclined with respect to the front-rear direction as described above, air flows smoothly between the intake flow paths 72 and 73 and the main flow path 71. In addition, the ions generated on the ion generation surfaces 74a and 75a vary in the horizontal direction immediately after the generation, but the ion generation surfaces 74a and 75a are inclined in the front-rear direction, so that the horizontal direction After the ions are evenly distributed, the air can flow into the air flowing over the ion generation surfaces 74a and 75a.

  Therefore, the ions generated by the ion generating elements 74 and 75 can be efficiently and uniformly placed on the wind flowing through the main channel 71 in the left-right direction. In addition, 10-45 degrees is suitable for the inclination | tilt angle of the ion generating surfaces 74a and 75a, Preferably it is 15-35 degrees.

  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, the direction in which the duct unit 50 is mounted on the duct unit mounting portion 32 is changed, and the air outlet 43a and the inlet 33a are connected by the duct 52, and the duct By switching between the state where the air blowing port 43a and the introduction port 33a are connected by 53, it is desired to send ions wide and wide in the left-right direction, and to send ions straight and far ahead with a relatively narrow width. Any of the cases can be handled.

  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 at a far position, 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.

  Next, examples according to the present invention will be described. 8 to 10, in the static eliminator 1, the separation distance d from the ion generating elements 74 and 75 is 5 mm, and the inclination angles a of the ion generating surfaces 74 a and 75 a with respect to the front-rear direction are 15 ° and 30 °, respectively. It is a figure which shows the static elimination time in each point ahead of the static elimination apparatus 1 when it is set to 45 degrees, (a) is a case where an object to be discharged is positively charged, (b) is an object to be discharged negative. This is the static elimination time when the battery is charged. Here, the static elimination time is defined by the time required to attenuate an object charged to + (or −) 1000V to + (or −) 100V.

  Moreover, in FIGS. 8-10, the curve which shows the position whose static elimination time is 2.0 second, 4.0 second, 6.0 second, 8.0 second, and 10.0 second is shown, respectively. The numerical value described above is the static elimination time.

  8 to 10 show results when the air blowing port 43a and the introduction port 33a are connected by the duct 52. The duct 52 has a length of 35 mm in the front-rear direction of the internal space 52a, and the air blowing port. The lengths in the horizontal direction and the vertical direction at the connection portion with 43a are 150 mm and 34 mm, respectively, and the lengths in the horizontal direction and the vertical direction at the connection portion with the introduction port 33a are 204.6 mm and 20 mm, respectively. . Further, the rib 56 disposed in the internal space 52a of the duct 52 has a thickness of about 2 mm, and as shown in FIG. 12, the interval in the left-right direction is about 13.2 mm at the connecting portion with the air outlet 43a. The inner space 52a is arranged so as to be about 18.5 mm at the connection portion with the introduction port 33a.

  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 ion generation elements, usage conditions of the ion generation 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, the applied voltages (voltages for generating negative ions) of the ion generating element 74 in the case of FIGS. 8 to 10 are set to −2.19 kV, −2.56 V, and −2.19 kV, respectively. . On the other hand, applied voltages (voltages for generating positive ions) of the ion generating element 75 are 2.54 kV, 2.24 kV, and 3.54 kV, respectively.

  8 to 10, ion generating elements 74 and 75 are provided in the intake flow paths 72 and 73 at positions away from the main flow path 71 in the vertical direction, and the ion generating surfaces 74a and 75a of the ion generating elements 74 and 75 are provided. When the inclination angle a with respect to the front-rear direction is about 15 to 45 °, it is understood that the ions generated in the ion generating elements 74 and 75 are efficiently carried on the wind flowing through the main flow path 71. .

  However, as shown in the circled portion in FIG. 10A, when the inclination angle a is 45 °, the charge removal time of the negatively charged object is within the region of 6.0 to 8.0 seconds. There are a region where the static elimination time is 6.0 seconds or less and a region where the static elimination time is 8.0 to 10.0 seconds. That is, there is a variation in the static elimination time by the static eliminator 1. Here, the reason why such a region exists is that the ion balance between positive ions and negative ions delivered from the static elimination apparatus 1 is disturbed.

  More specifically, when the inclination angle of the ion generating elements 74 and 75 is 35 ° or more, for example, as described above, at a large inclination angle such as 45 °, plus ions and negative ions generated on the ion generation surfaces 74a and 75a. There is a case where the ion balance is lost due to neutralization or the like until the ions are sent to the wind flowing through the intake flow paths 72 and 73 by suction.

  In addition, at a small inclination angle of 10 ° or less, the region between the ion generation surfaces 74a and 75a and the air flowing on the ion generation surfaces 74a and 75a is small, and the ions are generated before the ions are sufficiently distributed in the left-right direction. The air flows on the surfaces 74a and 75a. Therefore, an inclination angle of 15 to 35 ° is more preferable in a practical range viewed from the charge removal capability.

  As described above, the case where the air blowing port 43a and the introduction port 33a are connected by the duct 52 of the duct unit 50 has been described based on the measurement results. However, even in the case of the duct 53, the air is efficiently put on the wind flowing through the main flow path 71 and sent out. The point that is done is the same.

  Next, modified examples in which various changes are made to the present embodiment will be described. However, components having the same configuration as in the present embodiment are denoted by the same reference numerals, and description thereof is omitted as appropriate.

  In the above-described embodiment, the inclination angle a of the ion generation surfaces 74a and 75a is 10 to 45 °. However, the inclination angle a may be an angle outside this range. Furthermore, if the ion generating elements 74 and 75 are disposed in the suction flow paths 72 and 73 away from the main flow path 71 in the vertical direction, the ion generation surfaces 74a and 75a are inclined with respect to the front-rear direction. It may have a configuration that is not.

  Even in these cases, since the ion generating elements 74 and 75 are arranged in the intake flow paths 72 and 73 so as to be separated from the main flow path 71 in the vertical direction, the wind flowing through the main flow path 71 is It is possible to prevent foreign matter flowing along with the wind in the main flow channel 71 from adhering to the ion generating elements 74 and 75 (ion generating surfaces 74a and 75a) without directly hitting the 75.

  Further, when the wind passes 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, even when the wind is not inclined. To do. Therefore, atmospheric pressure air flows into the air layer with low atmospheric pressure through the intake air channels 72 and 73. As a result, air introduced from the intake ports 15 and 17 and passed through the intake flow paths 72 and 73 in which the ion generation elements 74 and 75 are arranged flows into the main flow path 71, and thus generated in the ion generation elements 74 and 75. Ions can be efficiently carried on the wind flowing through the main flow channel 71.

  In the above-described embodiment, each of the ion generating elements 74 and 75 is about 5 mm away from the main flow path 71 in the vertical direction. However, as described above, the separation distance is in the range of 2 to 10 mm. It is preferable.

  Moreover, in the above-mentioned embodiment, although the some rib 56 was provided in the internal space 52a of the duct 52, the rib 56 does not need to be provided.

  Alternatively, as shown in FIGS. 11 and 12, a plurality of pins 91 may be arranged instead of the ribs. Here, the cross-section of each pin 91 is substantially circular when viewed from the top-bottom direction. The plurality of pins 91 are located at the same position as the center of the duct 52 with respect to the left-right direction, and are symmetrical in the left-right direction along an arc centered on a point located behind the duct 52. Are arranged as follows.

  In such a duct 52, air also flows out between two adjacent pins 91 and 91 in the internal space 52a. However, the pin 91 itself becomes a resistance, so that the pin 91 is not disposed. The channel resistance at both ends is smaller than the region where the pins 91 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 91 are symmetrically arranged in the left-right direction at equal intervals, the wind flowing through the internal space 52a is evenly diffused in the left-right direction.

  Here, FIG. 12 shows that the ion generation surfaces 74a and 75a have an inclination angle of 30 °, and 17 pins 91 having a diameter of 3 mm are arranged in the internal space 52a at intervals of 3 mm in the left-right direction. The time distribution is shown, and curves indicating positions at which the static elimination time is 2.0 seconds, 3.0 seconds, 4.0 seconds, 5.0 seconds, and 6.0 seconds are shown. However, in FIG. 12, only a part of the 17 pins 91 is shown for easy viewing of the drawing.

  Further, in the measurement of the static elimination time distribution of FIG. 12, the applied voltage of the ion generating element 74 (voltage for generating negative ions) is −1.88 kV, and the applied voltage of the ion generating element 75 (to generate positive ions). Voltage) of 2.42 kV.

  From the results shown in FIG. 12, it can be seen that even in this case, the ions generated in the ion generating elements 74 and 75 are efficiently sent on the wind flowing through the main flow path 71.

  FIG. 12 shows the results when the inclination angles of the ion generation surfaces 74a and 75a are set to 30 °. However, when the inclination angles of the ion generation surfaces 74a and 75a are changed in the range of 10 to 45 °. Even so, as in the case where the ribs 56 are provided as in the above-described embodiment, ions are efficiently put on the wind flowing through the main flow channel 71 and sent out.

  Further, in the above-described embodiment, by changing the direction in which the duct unit 50 is mounted on the duct unit mounting portion 32, the air blowing port 43a and the introduction port 33a are selectively connected by one of the ducts 52 and 53. However, the duct unit mounting part 32 may not be provided, and the duct 52 or the duct 53 may be provided in a state in which the duct 52 or the duct 53 cannot be removed. Or the duct 52 or the duct 53 may be attached independently.

  Although the static eliminator has been described above as a preferred embodiment of the ion generator, it is needless to say that the present invention can be applied to a charging device that performs predetermined charging on an object placed in front of the generated ions. 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 15, 17 Intake port 31 Blowing mechanism 33 Ion generation space 33a Inlet port 33b Outlet port 43a Blower port 71 Main flow path 72, 73 Intake flow path 74, 75 Ion generation element 74a, 75a Ion generation surface

Claims (4)

An air blowing means having a wide air blowing port, and sending air from the air blowing port in a predetermined first direction;
A wide outlet for blowing out the wind sent out by the blowing means;
A wide main flow path for guiding the wind sent from the blowing means to the outlet ;
A wide intake flow path that takes in air from the outside by wind flowing through the main flow path, and flows the taken-in air into the main flow path from a surface along the width direction of the main flow path;
An ion generating element having an ion generating surface configured to form an elongated plate and generating ions,
The ion generating element is configured such that the ion generating surface extends in the width direction in a region separated from the main channel in the width direction and a second direction orthogonal to the first direction in the intake channel. The ion generator is characterized in that the air flowing through the intake passage flows along the ion generation surface .   The ion generator according to claim 1, wherein the ion generating element is separated from the main flow path by 2 to 10 mm in the second direction. Before SL ion generating element, the surface of the primary flow path side for said second direction is a ion generating surface for generating ions,
The said ion generating surface is inclined with respect to the said 1st direction so that it may approach the said main flow path regarding the said 2nd direction, so that it approaches the said blower outlet regarding the said 1st direction. 2. The ion generator according to 2.   The ion generation apparatus according to claim 3, wherein the ion generation surface is inclined by 10 to 45 ° with respect to the first direction.