JP2008049253A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner having a function of cleaning air and capable of preventing ionizing wires from breaking without increasing the number of components even if a plurality of ionizing wires are stretched therein. <P>SOLUTION: The air conditioner is comprised of a panel frame 90, a wire 92, a plurality of ionizing wires 66, and a counter electrode 21. The wire 92 is made from a stick-shaped metallic wire rod having a smooth cross-sectional circumference, is supported by at least two points attached to the panel frame 90 made from a resin, and has a plurality of curved parts 93 disposed therebetween. The ionizing wires 66 have 2n of bent parts each contacting with one of the curved parts 93 of the wire 92 and are disposed parallel to each other. The counter electrode 21 is disposed parallel to the ionizing wires 66 in the vicinity thereof. The ionizing wires 66 are kept applied with a tensile force generated by the elastic deformation of the wire 92 which deformation changes the relative positions of the curved parts 93. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an air conditioner having an air cleaning function using an ionization line.

  Conventionally, when purifying indoor air, an air cleaner is charged (for example, plus) with dust collection in the air and reversely charged (for example, minus) in advance. Technology that improves the collection efficiency of dust collection has been introduced. In such an air cleaner, an ionization line and a counter electrode plate corresponding to the ionization line are provided to charge dust collection and the like, and corona discharge is performed from the surface of the ionization line. Such an ionization line is attached to the main body in a state where a certain amount of tension is applied in order to avoid leakage due to contact with other portions.

For example, in Patent Document 1 shown below, both ends of the ionization line are attached to the main body via springs with hooks. Thereby, a certain amount of tension can be applied to the ionization line.
Japanese Patent Laid-Open No. 10-92550

  However, in the attachment structure of the ionization line described in Patent Document 1, when attaching the ionization line to the main body so that a plurality of ionization lines are arranged, each ionization line has springs with hooks at both ends in order to attach to the main body. And the number of parts increases and the manufacturing is complicated.

  Moreover, in order to perform an efficient discharge, the ionization line may employ a line as thin as possible. In this case, it is necessary to avoid the ionization line from being cut.

  The present invention has been made in view of the above-described points. The object of the present invention is to cut an ionization line while suppressing an increase in the number of parts even when a plurality of ionization lines are stretched side by side. An object of the present invention is to provide an air conditioner having an air cleaning function that can be avoided.

  An air conditioner according to a first aspect of the present invention is an air conditioner that purifies air by charging and collecting a target to be cleaned, and includes a resin mounting frame, a contacted wire, an ionization wire, and a counter electrode. And a board. A to-be-contacted wire consists of a rod-shaped metal wire with a smooth outer periphery in cross section. Moreover, this to-be-contacted wire is supported at at least two points with respect to the mounting frame, and has a plurality of curved portions between these two points. The ionization lines are provided so that there are even portions where the bent portions are in contact with the curved portions of the wire to be contacted and at least more than 0, and the axial directions are substantially parallel to each other. . The counter electrode plate is disposed substantially parallel to the longitudinal direction of the ionization line in the vicinity of the ionization line. And the ionized line is tensioned by the elastic deformation of the contacted wire so that the positional relationship of the curved portion with respect to the two points changes.

  Conventionally, an ionization line in an air conditioner is sometimes attached so as to be hooked on a member molded with resin, and when a sharp part is generated at the time of resin molding, the ionization line is formed on the sharp part. If they are in contact, the ionization line may be cut off.

  On the other hand, in the air conditioner of the first invention, the contacted wire has a smooth outer periphery in cross section, and there is no sharp part even in the part where the ionization line is in contact. For this reason, even if it is a case where a thin ionization line is employ | adopted in order to perform an efficient discharge, an ionization line is hard to be damaged. Furthermore, even when a plurality of ionization lines are stretched, they can be stretched in parallel by two or more rows by one ionization line by being bent evenly by 0 or more, thereby reducing the number of parts. Yes.

  As a result, even when a plurality of ionization lines are stretched, it is possible to avoid cutting the ionization lines while suppressing an increase in the number of parts.

  An air conditioner according to a second invention is the air conditioner according to the first invention, further comprising a leaf spring. Both ends of the ionization line are attached to the attachment frame via this leaf spring. One end of the ionization wire is attached to one end portion of the leaf spring in the longitudinal direction, the other end of the ionization wire is attached to the other end portion of the leaf spring in the longitudinal direction, and the attachment frame is connected to one end of the leaf spring in the longitudinal direction. It is attached to the part between the ends.

  Here, by elastically deforming the leaf spring, the tension applied to the ionized wire stretched is adjusted, the force applied to the curved portion is dispersed, and the contact of the ionized wire with the contacted wire can be weakened. In addition, not only one end of the ionization line but also the other end can be attached to the mounting frame via one leaf spring, so that it is possible to suppress the number of parts required for attachment of the ionization line.

  Thereby, it becomes possible to attach to the attachment frame with a small number of parts while suppressing a tension separation applied to each part of the ionization line.

  An air conditioner according to a third aspect of the present invention is the air conditioner according to the first or second aspect of the present invention, wherein the curved portion of the wire to be contacted is a portion curved toward the side opposite to the direction displaced by elastic deformation. have.

  Here, when performing the operation | work which hooks an ionization line on a to-be-contacted wire, it is not necessary to straddle a to-be-contacted wire between two points where the to-be-contacted wire is supported, and an ionization line can be hooked. Even if both ends of the ionization line are fixedly supported, the ionization line can be hooked from one side to the contacted wire.

  Thereby, it becomes possible to easily hook the ionization line to the contacted wire.

  In the air conditioner of the first invention, even when a plurality of ionization lines are stretched, it is possible to avoid cutting of the ionization lines while suppressing an increase in the number of parts.

  In the air conditioner according to the second aspect of the present invention, it is possible to attach the mounting frame to the mounting frame with a small number of parts while suppressing a tension separation applied to each part of the ionization line.

  In the air conditioner according to the third aspect of the present invention, it is possible to easily hook the ionization line to the contacted wire.

  Hereinafter, embodiments of an air cleaner according to the present invention will be described with reference to the drawings.

[Configuration of Air Cleaner 1]
The air cleaner 1 which concerns on one Embodiment of this invention is shown in FIG. This air purifier 1 is a floor-standing type air purifier that is installed on the indoor floor in order to keep indoor air clean and improve indoor comfort. The air cleaner 1 includes a main body 2 and a streamer discharge unit 63 (see FIGS. 8 and 9). The main body 2 can be divided into the front and the rear, the first main body 3 is provided on the rear side, and the second main body 4 is provided on the front side. The streamer discharge unit 63 is located on the upper right side of the main body 2 so as to extend in the front-rear direction when viewed from the front.

<First body part 3>
As shown in FIG. 4, the first main body 3 includes a first main body casing 11, a fan motor 30, a blower fan 31 (blower), a unit storage B, a photocatalyst filter 43 (see FIG. 5), and a plasma catalyst filter 44. (See FIG. 5). FIG. 4 is a front view of the first main body 3 with the photocatalytic filter 43 and the plasma catalytic filter 44 removed.

[First body casing 11]
The first main body casing 11 houses therein the fan motor 30, the blower fan 31, the unit housing portion B, the photocatalyst filter 43, the plasma catalyst filter 44, and the like, as shown in FIGS. 1 and 3. And a lower suction port 13 and a side suction port 14. The air outlet 12 is provided at the rear side end of the upper surface of the first main body casing 11. The blower outlet 12 is an opening for blowing the purified air upward from the air cleaner 1. The lower suction port 13 and the side suction port 14 are substantially rectangular openings for sucking indoor air into the air cleaner 1. The lower suction port 13 is provided at the lower front side end portion of the first main body casing 11 which is the same as the surface on which the air outlet 12 is provided. The horizontal length of the lower suction port 13 is substantially the same as the horizontal length of the front panel 21. The side suction ports 14 are a pair of openings provided on the front sides of the left and right side portions of the first main body casing 11.

  In addition, the 1st main body casing 11 comprises the main body casing 6 with the front panel 21 mentioned later. A main air flow path through which the air that is sucked from the room through the suction ports 13, 14, and 22, purified by the air cleaning unit 40, and blown out from the air outlet 12 into the room is passed into the main body casing 6. And a bypass air flow path for returning the air in the vicinity of the air outlet 12 to the upstream side, as shown in FIGS. 3, 4 and 6 (a), (b), (c). A main air flow F1 flowing through the air flow path and a bypass air flow F2 flowing through the bypass air flow path are generated by the blower fan 31. 6A is a schematic front view of the air cleaner 1, FIG. 6B is a schematic diagram on the right side of the air cleaner 1, and FIG. 6C is a schematic top view of the air cleaner 1. Show.

  In addition, on the upstream side of the blower fan 31, the main air flow path generally flows from the front to the rear. Hereinafter, “front” refers to “the upstream side in the flow direction of the main air flow in the main air flow path”. "Rear" means "downstream side in the flow direction of the main air flow in the main air flow path". That is, the bypass air flow that flows through the bypass air flow path generally flows from the rear toward the front.

  Here, as shown in FIGS. 3, 4 and 6 (a), 6 (b), and 6 (c), the main air flow F 1 flowing through the main air flow path is sucked from the lower suction port 13 and the side suction port 14. It is an air flow that cleans the generated air and blows it out from the air outlet 12. A bypass air flow F2 flowing through the bypass air flow path flows upward in the vicinity of the air outlet 12, and flows from the rear to the front in a state of being stored in the unit storage portion B stored in the streamer discharge unit 63. In the plasma ionization section 42 that flows, the air flows to the vicinity of the center of the front surface, then descends, and is guided to the front of the prefilter 41 described later.

[Blower fan 31 and fan motor 30]
The blower fan 31 and the fan motor 30 shown in FIGS. 4 and 5 generate a main air flow F1 that flows through the main air flow path and a bypass air flow F2 that flows through the bypass air flow path. A centrifugal fan is adopted as the blower fan 31. For this reason, the blower fan 31 sucks air from the rotation axis direction and blows out air from the rotation center toward the outside in the radial direction. The fan motor 30 rotationally drives the blower fan 31. As the fan motor 30, an inverter motor whose frequency is controlled by an inverter circuit is employed.

  In the first space on the upstream side of the blower fan 31, an air cleaning unit 40 (see FIG. 5) described later is accommodated. In the second space on the downstream side of the blower fan 31, there are a fan motor 30, a blower fan 31, and a side surface of the blower fan 31, that is, a scroll 52 formed along a circumferential direction around the rotation axis of the blower fan. It is stored. Then, the air blown out from the blower fan 31 is sent out from the blower outlet 12 into the room along the scroll 52.

[Photocatalytic filter 43]
As shown in FIG. 5, the photocatalytic filter 43 is formed in a pleat shape, and is formed by bonding an electrostatic filter and a titanium apatite-carrying filter. The photocatalytic filter 43 is disposed so that the electrostatic filter faces the front side and the titanium apatite-carrying filter faces the rear side. The electrostatic filter adsorbs dust and the like charged when passing through a plasma ionization unit 42 described later. The titanium apatite-carrying filter adsorbs dust or the like that has passed through the electrostatic filter. This titanium apatite-carrying filter is formed of PP fibers carrying titanium apatite, like the pre-filter 41. Titanium apatite is apatite in which some calcium atoms of calcium hydroxyapatite are replaced with titanium atoms by a technique such as ion exchange. This titanium apatite has the property of specifically adsorbing viruses, molds, bacteria, etc. contained in dust and the like. The titanium apatite has a photocatalytic function activated by active species supplied from a streamer discharge unit 63 described later, and inactivates or kills viruses, molds, bacteria, and the like.

  In addition, since the photocatalytic filter 43 is formed in a pleat shape, it can be easily folded according to the crease. For this reason, as shown in FIG. 2, the photocatalyst filter 43 is accommodated in the exchange filter accommodating part A formed upwards in the folded state.

[Plasma catalyst filter 44]
The plasma catalyst filter 44 is disposed in front of the blower fan 31 and behind the photocatalytic filter 43. That is, the plasma catalyst filter 44 is disposed between the blower fan 31 and the photocatalyst filter 43. The plasma catalyst filter 44 carries anatase type titanium dioxide. The plasma catalyst filter 44 adsorbs viruses and fungi in the air that have not been adsorbed by the photocatalytic filter 43. In the plasma catalyst filter 44, the adsorbed bacteria and viruses are killed or inactivated by the titanium dioxide activated by the active species.

[Unit storage B]
As shown in FIG. 7, the unit storage portion B detachably stores the streamer discharge unit 63 and constitutes a part of the bypass air flow path through which the bypass air flow F2 flows. The unit storage portion B is composed of a unit storage body B1 and a cartridge storage portion B2 that is attached to the unit storage body B1 so as to be freely opened and closed.

  A deodorizing catalyst cartridge 49 is accommodated in the cartridge accommodating portion B2. As shown in FIG. 7, the cartridge housing portion B2 can replace the deodorizing catalyst cartridge 49 with the opening / closing portion opened. The cartridge housing portion B2 is provided with a deodorizing opening BO so that air can be transferred to and from the bypass air flow path of the unit housing body B1 when the deodorizing catalyst cartridge 49 is housed and closed. Thus, deodorization is achieved by adsorbing and decomposing odorous components targeting air flowing through the bypass air flow path.

  The unit housing main body B1 is provided with main body side contacts 75a and 75b so as to be electrically connected in a state where the streamer discharge unit 63 is attached and to be energized. The main body side contacts 75a and 75b are formed of a metal plate, and are connected to a power source via a power circuit (not shown) and a power cord (not shown) housed in the first main body 3. . Thereby, the main body side contacts 75a and 75b are provided so as to be separated in the longitudinal direction and the vertical direction, and by contacting with the discharge unit side contact 71 described later, the power source is connected to the streamer discharge unit 63 side. Transmits current from Here, the main body side contactor 75a is located on the rear side and comes into contact with the streamer discharge electrode 70, and the main body side contactor 75b is located on the front side and comes into contact with the ground plate 73. The unit storage body B1 is made of an insulating material such as resin.

<Streamer discharge unit 63>
As described above, the streamer discharge unit 63 is disposed by being housed in the unit housing portion B on the upper right side of the first main body portion 3, and forms a part of the main air flow path (see FIGS. 2 and 4). ).

  As shown in FIGS. 8 and 9, the streamer discharge unit 63 has a discharge unit casing 69, a discharge part 83, and discharge unit side contacts 71 and 81, and causes streamer discharge to occur. The active species to be supplied to the photocatalytic filter 43 are generated and released into the bypass air flow F2.

[Discharge unit casing 69]
A discharge unit 83 is attached to the discharge unit casing 69. The discharge unit casing 69 is a box-shaped member made of resin, and has an outer shape that matches the unit storage portion B. The discharge unit casing 69 has an upper surface and a right side surface that are open, and covers the front, rear, left side, and lower surface of the discharge part 83.

  As shown in FIG. 7, the discharge unit casing 69 is inserted into the unit storage portion B and is detachably attached to the unit storage portion B. When the discharge unit casing 69 is attached to the unit storage portion B, it covers the periphery of the discharge portion 83 together with the unit storage portion B to form a bypass air flow path.

  On the left side of the back surface of the discharge unit casing 69 (upper direction shown in FIG. 9), contactor covers 71G and 81G are provided at two locations so as to be separated from each other in the longitudinal direction and in the vertical direction. The contact cover 71G, 81G has a function of guiding insertion in the front-rear direction by sliding with a member on the unit storage portion B side when the streamer discharge unit 63 is inserted into the unit storage portion B. .

  As shown in FIG. 9, the discharge unit side contacts 71 and 81 are provided at positions corresponding to the positions of the contact covers 71G and 81G so as to be spaced apart in the longitudinal direction and the vertical direction, respectively. When the streamer discharge unit 63 is attached, the left side shown in FIG. 9 is the front of the air cleaner 1 and the right side is the rear. As described above, the discharge unit side contact 71 and the discharge unit side contact 81 are guided by the contact covers 71G and 81G, respectively, while the streamer discharge unit 63 is inserted into the unit storage portion B, respectively. It contacts the contact 75a and the main body side contact 75b.

  In addition, a plurality of minute holes 77 are provided in an intermediate portion of the lower surface of the discharge unit casing 69 in the longitudinal direction.

[Discharge part 83]
The discharge part 83 is a main part that causes streamer discharge, and includes a streamer discharge electrode 70 and a ground plate 73.

(Streamer discharge electrode 70)
The streamer discharge electrode 70 is constituted by a terminal attached to a portion where the metal plate 70 ′ is cut and raised, and a streamer discharge is generated between the streamer discharge electrode 70 and the ground plate 73 when a discharge voltage is applied. The streamer discharge electrode 70 and the metal plate 70 ′ are screwed to the discharge unit casing 69 via two insulating posts 71P by screws 71S (two) passing through the inside of the insulating posts 71P. One of the two insulating posts 71P is screwed so as to be in contact with the discharge unit side contact 71. Thereby, in the state where the streamer discharge unit 63 is attached to the unit housing portion B and the discharge unit side contact 71 is in contact with the main body side contact 75a, the discharge unit side contact 71 is connected to the streamer discharge electrode via the screw 71S. 70 is electrically connected. Thereby, the discharge unit side contact 71 can transmit a discharge voltage to the streamer discharge electrode 70 from the main body side contact 75a.

(Earth plate 73)
The ground plate 73 is formed of a metal plate and has a substantially rectangular outer shape larger than the metal plate 70 ′ of the streamer discharge electrode 70. The ground plate 73 is disposed in parallel to the streamer discharge electrode 70 and is disposed away from the streamer discharge electrode 70. The ground plate 73 is screwed to the discharge unit casing 69 via two insulating columns 81P by screws 81S (two) passing through the inside of the insulating column 81P. One of the two insulating columns 81P is screwed so as to contact the discharge unit side contact 81. Thereby, in a state where the streamer discharge unit 63 is attached to the unit housing portion B and the discharge unit side contactor 81 is in contact with the main body side contactor 75b, the discharge unit side contactor 81 is connected to the ground plate 73 via the screw 81S. And become electrically connected.

  As described above, since the main body side contactor 75a corresponding to the streamer discharge electrode 70 is located at the rear of the main body, it is difficult for the user to reach and the safety is ensured. Further, since the streamer discharge electrode 70 and the ground plate 73 are fixed to a discharge unit casing 69 formed of resin through insulating posts 71P and 81P, respectively, insulation is ensured.

  In the above configuration, the discharge unit casing 69 partitions the space where the streamer discharge electrode 70 and the ground plate 73 are disposed and the space where the contacts of the discharge unit side contacts 71 and 81 are disposed. . Thereby, the contact of the discharge unit side contacts 71 and 81 is arrange | positioned in the space partitioned from the space where the streamer discharge electrode 70 and the earth board 73 are arrange | positioned.

  As described above, the active species generated from the streamer discharge electrode 70 is released with respect to the bypass air flow flowing through the bypass air flow path. The active species released in the streamer discharge unit 63 flows through an upper surface guide 42G and a front surface guide 42H of a plasma ionization unit 42 described later, and is supplied to the front of the prefilter 41.

<Second body part 4>
As shown in FIGS. 1, 2, and 5, the second main body portion 4 is detachably attached to the front surface of the first main body portion 3. The 2nd main-body part 4 has the front panel 21, the pre filter 41 (refer FIG. 5), and the plasma ionization part 42 (refer FIG. 5).

[Front panel 21]
The front panel 21 is provided on the front surface of the second main body portion 4. The height of the front panel 21 is longer than the depth of the air purifier 1. Here, the translucent portion S is provided so that a human motion can be detected and detected by a human detection sensor (not shown) used to control ON / OFF and the like.

[Prefilter 41]
As shown in FIGS. 5 and 12, the pre-filter 41 is provided with a filter part 41a and a partition ventilation part 41b.

  The filter part 41a is provided behind the front panel 21 and removes relatively large dust and dust. The filter part 41a is composed of a net made of a thread-like resin net made of polypropylene (hereinafter referred to as PP) and a frame for holding the net. Visible light type photocatalyst and catechin are supported on the fibers constituting the net of the filter portion 41a so as to be exposed to the air side. The visible light type photocatalyst contains titanium oxide or the like whose photocatalytic action is activated by visible light, and removes bacteria and viruses such as fungi and bacteria contained in dust attached to the filter portion 41a. Catechin is a kind of polyphenol and is a generic name for epicatechin, epigallocatechin, epicatechin gallate, epigallocatechin gallate, and the like. This catechin suppresses the growth of fungi such as fungi and bacteria contained in dust and the like attached to the filter part 41a, and inactivates viruses.

  As shown in FIG. 12, the partition ventilation part 41b is provided in the center of the pre-filter 41 so as to partition the left and right filter parts 41a up and down. This partition ventilation part 41b has a plurality of holes 41O penetrating in the front-rear direction.

[Plasma ionization unit 42]
As shown in FIG. 1, the plasma ionization unit 42 is provided behind the pre-filter 41 and is provided on the back surface of the second main body unit 4. The plasma ionization unit 42 charges relatively small dust floating in the air that has passed through the prefilter 41. As shown in FIG. 10, the plasma ionization unit 42 mainly includes a panel frame 90, a pair of counter electrodes 21 and 22, a wire 92, a leaf spring 91, and a plurality of ionization lines 66 (linear electrode units). ) And. In FIG. 10, only some of the ionization lines 66 among the plurality of ionization lines 66 are denoted by reference numerals, and others are omitted.

(Panel frame 90)
The panel frame 90 is molded of resin, and as shown in FIG. 10, the counter electrodes 21 and 22 are attached, and the ionization lines 66 are stretched. As shown in FIGS. 10 and 18, the panel frame 90 includes a front guide 42H, which will be described later, which is formed by extending in the vertical direction in the vicinity of the center, and a plurality of front guides 42H extending further forward from the front guide 42H. Anti-vibration anti-vibration ribs 99 are provided. As will be described later, the vibration preventing rib 99 is located in the vicinity of the center between one fixed end of the ionization line 66 and the other fixed end, and is disposed on the shortest distance connecting the two fixed ends. It is molded so as to have a predetermined thickness in the width direction relative to the direction connecting the two fixed ends. The length in the thickness direction of the vibration preventing rib 99 is such that the length on one side from the shortest distance and the length on the other side from the shortest distance are equal to each other. Thereby, even if the ionization line 66 is displaced in any direction of the vibration preventing rib 99, the same effect can be obtained. Further, as shown in FIG. 15, the panel frame 90 is provided with wire support portions 90 a and 90 b for supporting and attaching the wire 92 at a plurality of points. The front guide 42H, the vibration preventing rib 99, and the wire support portions 90a and 90b are all integrally formed of resin as a panel frame 90.

(Counter electrodes 21, 22)
As shown in FIG. 10, the pair of counter electrodes 21 and 22 is a metal plate having a square-wave cross section, and is attached to the panel frame 90 separately in the vertical direction. The counter electrodes 21 and 22 are arranged so as to be in parallel with each other in the vicinity of the ionization line 66, and a corona discharge is generated between the ionization line 66 and a high voltage current flowing through the ionization line 66. .

(Wire 92)
As shown in FIGS. 10 and 15, the wire 92 is supported along one end surface of the panel frame 90, and the ionization line 66 is fixed to the panel frame 90 in a state where a predetermined tension is applied. Play a supporting role. Here, as shown in the front view of FIG. 17A and the top view of FIG. 17B, the wire 92 is a metal (stainless steel) rod-like wire rod having a circular cross section, It is manufactured by bending in various directions by a multi-forming process, and no edge is formed on the surface. Here, as shown in FIG. 17A, the wire 92 has a part in the longitudinal direction, which is located between the parts fixedly supported by the wire support part 90a and the wire support part 90b (see FIG. 15). There are four curved portions 93 for roughly shifting the shaft to the side of the air cleaner 1 and slightly to the near side while maintaining the shaft H, thereby forming a hook H. As shown in FIG. 15, the wire 92 is supported by the wire support portions 90a and 90b of the panel frame 90, and the ionization line 66 is attached to the hook H located between the wire support portions 90a and 90b. Is caught. In a state where the ionized wire 66 to which this tension is applied is hooked, as shown in FIG. 17A, a force F acts on the wire 92 to receive the tension applied to the ionized wire 66 and elastically deform it. It will be in the state.

(Leaf spring 91)
As shown in FIGS. 10 and 16, the leaf spring 91 is fixed so as to be along one end surface on the opposite side of the panel frame body 90 from the wire 92 installation position, and the ionization line 66 is attached to the panel frame body 90. It plays a role to fix and support. Here, as shown in FIG. 16, the leaf spring 91 is provided along the side surface, and a leaf spring support portion 91 a that hooks and supports one end of the ionization line 66 (ionization line hook 68 a) at one end of the surface; A leaf spring support portion 91b that hooks and supports the other end of the ionization wire 66 (ionization wire hook 68b) at the other end of the surface, and a leaf spring support portion 91c that is fixed to the panel frame 90 near the center of the surface. Each has. Here, the leaf spring 91 is elastically deformed so as to extend toward both ends by the tension of the ionization line 66 with the leaf spring support portion 91c fixed to the panel frame 90 as a fulcrum.

(Ionization line 66)
The plural ionization lines 66 play a role of charging relatively small dust floating in the air that has passed through the prefilter 41 together with the counter electrodes 21 and 22. The ionization line 66 is disposed in front of the counter electrodes 21 and 22. When a discharge voltage is applied to the ionization line 66, corona discharge is generated between the ionization line 66 and the counter electrodes 21 and 22. The ionization line 66 is disposed so as to intersect the air path, and is disposed in a state in which tension is applied to the air flow passing through the air path. The ionization lines 66 are provided in parallel to the vertical direction, and a plurality of ionization lines 66 are arranged side by side in the horizontal direction. These ionization lines 66 are formed of a fine-diameter tungsten wire or the like, have a thickness of 0.05 mm or more and 0.15 mm or less (φ0.1 mm in this embodiment), and serve as discharge electrodes for charging dust or the like. Used.

  The ionization line 66 has ionization line hooks 68a and 68b at its ends. As described above, these ionization line hooks 68a and 68b are respectively connected to the leaf spring support portions 91a and 91b of the leaf spring 91. By being hooked, they are supported as fixed ends. Further, a portion of the ionization line 66 between the ionization line hook 68a and the ionization line hook 68b is a curved portion 93 of the hook H of the wire 92 attached to the opposite side of the panel frame 90 as shown in FIG. On the other hand, each of the two ends is bent by 90 degrees to be a fixed end, and one ionization line 66 forms two parallel lines. These two rows of lines are arranged so that the distance from the counter electrode 21 is equal to prevent a difference in the degree of ionization.

  Thus, the ionization line 66 becomes one fixed end when the ionization line hooks 68a and 68b are pulled by elastic deformation of the leaf spring 91, and the ionization line between the ionization line hook 68a and the ionization line hook 68b. The portion 66 is pulled to the opposite side by the elastic deformation of the hook H of the wire 92 to become the other fixed end, and is arranged in the air in a state where tension is applied.

  The ionization line 66 arranged in the air in a state where tension is applied as described above is provided with a vibration preventing rib 99 having a thickness on a line connecting both fixed ends at the shortest distance as shown in FIG. Yes. For this reason, the ionized wire 66 under tension is always disposed in a state of being pressed against the vibration preventing rib 99 by detouring to the left or right so as to avoid the vibration preventing rib 99. . Thereby, the vibration of the ionization line 66 is prevented and the generation of vibration noise is also prevented.

(Top guide 42G, Front guide 42H)
As shown in FIG. 11, an upper surface guide 42 </ b> G is formed on the upper surface of the plasma ionization portion 42, which is a groove that is long in the left and right and is recessed downward. The upper surface guide 42G has the upper surface covered by the first main body 3 when the plasma ionization unit 42 is attached to the first main body 3, and constitutes a part of the bypass air flow path. On the right side of the upper surface guide 42G, a bypass air flow F2 containing active species flows from the opening portion on the front surface side of the unit storage portion B described above. The bypass air flow F2 that has flowed in this way flows downward from the vicinity of the center of the upper surface guide 42G.

  Further, as shown in FIGS. 10, 13 and 14, in the vicinity of the center of the front surface of the plasma ionization portion 42, a groove 43 and a rib 43R projecting to the front surface at the edge are provided. The front guide 42H comprised by these is provided. The front guide 42H has a shape corresponding to the contour of the partition ventilation portion 41b of the prefilter 41 described above. Then, as shown in FIG. 12, the back surface of the prefilter 41 abuts against the rib 43R of the plasma ionization portion 42, and a bypass air flow path is formed between the partition ventilation portion 41b of the prefilter 41 and the front guide 42H. The bypass air flow from the upper surface guide 42G is directed downward.

  At this time, the bypass air flow F2 due to the air containing the active species passing through the front guide 42H is released toward the front of the filter part 41a through the hole 41O of the partition ventilation part 41b as shown in FIG. The

  As shown in FIGS. 13 and 14, the rib 43 </ b> R provided in the plasma ionization portion 42 has a recess that is recessed toward the rear at a portion corresponding to a part of the bulging portion of the partition ventilation portion 41 b. A portion 44R is provided. Thereby, a part of the bypass air flow F2 including the active species is also provided on the downstream side of the prefilter 41, and the active species is sufficiently provided also to the clean portion behind the prefilter 41. it can.

[Air cleaning action by air cleaning unit]
As shown in FIG. 5, the air cleaner 1 includes an air cleaning unit 40 (air cleaning unit) and a streamer discharge unit 63 including a prefilter 41, a plasma ionization unit 42, a photocatalytic filter 43, and a plasma catalytic filter 44. The foreign matter contained in the indoor air sucked from the respective suction ports (the lower suction port 13 and the side surface suction port 14) is removed to clean the air. Hereinafter, the air cleaning action by the air cleaning unit 40 will be described.

  The indoor air sucked from the lower suction port 13 and the side suction port 14 first passes through the filter portion 41 a of the prefilter 41. At this time, relatively large dust and dust are removed from the air. In addition, the action of the photocatalyst and catechin contained in the prefilter 41 suppresses the growth of fungi and viruses such as fungi and bacteria contained in the dust attached to the filter portion 41a of the prefilter 41, thereby inactivating the virus. Is done.

  The airflow that has passed through the prefilter 41 passes between the ionization line 66 and the counter electrodes 21 and 22. When a high voltage is applied between the ionization line 66 and the counter electrodes 21 and 22, a discharge is generated between the ionization line 66 and the counter electrodes 21 and 22. As a result, dust or the like contained in the air flow passing between the ionization line 66 and the counter electrodes 21 and 22 is charged with a positive charge.

  The airflow that has passed between the ionization line 66 and the counter electrodes 21 and 22 passes through the photocatalytic filter 43. At this time, dust or the like charged when passing through the plasma ionization unit 42 is adsorbed by the electrostatic filter. Further, dust or the like that has passed through the electrostatic filter is adsorbed by the titanium apatite-carrying filter. Note that, when passing through the ionization line 66 and the counter electrodes 21 and 22, viruses and bacteria contained in the dust are charged, so that the efficiency of adsorption of the virus and bacteria on the titanium apatite is increased.

  The air flow that has passed through the photocatalytic filter 43 passes through the plasma catalytic filter 44. In the plasma catalyst filter 44, viruses and bacteria in the air that have not been adsorbed by the photocatalyst filter 43 are adsorbed.

  The main air flow F1 that has passed through the plasma catalyst filter 44 and has been purified is blown into the room from the air outlet 12. Further, a part of the air that has passed through the plasma catalyst filter 44 flows as a bypass air flow F2 toward the bypass air flow path without being blown out into the room.

  As described above, the streamer discharge unit 63 is provided in the bypass air flow path. In the streamer discharge unit 63, a DC, AC, or pulse discharge voltage is applied between the streamer discharge electrode 70 and the earth plate 73, and streamer discharge is generated between the streamer discharge electrode 70 and the earth plate 73. When streamer discharge occurs, low-temperature plasma is generated in the discharge field, and active species are generated in the discharge unit casing 69 and released into the bypass air flow F2. These active species have a very high energy level and decompose and deodorize small organic molecules such as ammonia, aldehydes and nitrogen oxides contained in the air even before reaching the photocatalytic filter 43. Have the ability to

  Here, the air that passes in the vicinity of the streamer discharge electrode 70 is once cleaned in the prefilter 41, the plasma ionization unit 42, the photocatalytic filter 43, and the plasma catalytic filter 44. For this reason, it is possible to prevent dust collection, ammonium nitrate, and the like from adhering to the terminal portion of the streamer discharge electrode 70. Thereby, streamer discharge can be generated stably.

  In this way, the bypass air flow F2 containing the active species passes through the bypass air flow path, is provided in front and rear of the prefilter 41, and acts on the dust or the like attached to the prefilter 41 to be cleaned. be able to.

  The air containing the active species passes between the ionization line 66 and the counter electrodes 21 and 22 and passes through the photocatalytic filter 43. At this time, dust or the like charged when passing through the plasma ionization unit 42 is adsorbed by the electrostatic filter. The titanium apatite-carrying filter adsorbs dust or the like that has passed through the electrostatic filter. At this time, the photocatalytic function of the titanium apatite is activated by the active species supplied from the streamer discharge unit 63, and thus viruses and molds are activated. Fungi, bacteria, etc. can be inactivated or killed.

  Further, in the plasma catalyst filter 44, viruses and bacteria in the air that have not been adsorbed by the photocatalyst filter 43 are adsorbed, and these bacteria and viruses are activated by titanium dioxide activated by air containing active species. Is killed or inactivated.

<Characteristics of the air cleaner 1 of the present embodiment>
(1)
The ionization line in the conventional air cleaner is attached so as to be hooked to the resin molding member, and if a sharp part is generated during the resin molding, the ionization line may be cut. . Moreover, in general, the ionization line is stretched in a state where a certain amount of tension is applied in order to avoid a leak due to contact with other parts and enable a stable discharge, and is effective for applying a voltage. In order to generate the above, ionization lines that are as thin as possible are employed. For this reason, it tends to be in a state where it is strongly pressed against a sharp portion, and in this case, the ionization line may be further cut.

  On the other hand, in the air cleaner 1 of the present embodiment, the ionization line 66 is a stainless steel formed by multi-forming and is supported by being hooked on a wire 92 having a circular cross section. Cutting can be avoided without contact. Thereby, the lifetime of the ionization line 66 can be lengthened and the frequency of maintenance, such as replacement | exchange, can be suppressed.

(2)
In the air cleaner 1 of the present embodiment, the ionization line 66 can be brought into a state in which an appropriate tension is applied by elastically deforming not only the elastic deformation of the leaf spring 91 but also the hook H of the wire 92. .

(3)
In the air cleaner 1 of this embodiment, as shown in FIG. 15, since the ionization line 66 is hooked so that the contact area with the wire 92 becomes very small, the path of current leakage can be minimized. it can.

(4)
In the air cleaner 1 of the present embodiment, as shown in FIG. 15, the ionization line 66 can be hooked from one side with respect to the hook H of the wire 92 without straddling the wire 92. For this reason, since the manufacturing operation to be hooked can be easily performed, the manufacturing is facilitated.

  By using the present invention, even when a plurality of ionization lines are stretched side by side, it is possible to avoid cutting the ionization lines while suppressing an increase in the number of parts, and in particular, having a plurality of ionization lines. It is useful as an air conditioner with an air cleaning function.

It is an appearance perspective view of an air cleaner concerning an embodiment of the present invention. It is an external appearance perspective view of an air cleaner in the state where a front panel was removed. It is an external appearance perspective view of the back side of an air cleaner. It is a figure which shows the position of the fan of an air cleaner. It is explanatory drawing of the air cleaning by a main air flow and a bypass air flow. (A) It is a front view which shows a main air flow path and a bypass air flow path. (B) It is a side view which shows a main air flow path and a bypass air flow path. (C) It is a top view which shows a main air flow path and a bypass air flow path. It is a block diagram of a unit storage part. It is an external appearance perspective view of a streamer discharge unit. It is a top view sectional view of a streamer discharge unit. It is a back perspective view of a plasma ionization part. It is a top view of a plasma ionization part. It is a front view when a pre-filter is attached to the plasma ionization unit. It is a principal part enlarged view of a pre filter. It is a principal part enlarged view of a plasma ionization part. It is a principal part enlarged view which shows the contact state of a wire and an ionization line. It is a principal part enlarged view which shows the contact state of a leaf | plate spring and an ionization line. (A) It is a front view of a wire. (B) It is a top view of a wire. It is a principal part enlarged view which shows the contact state of a rib and an ionization line.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air cleaner 12 Air outlet 13 Lower suction inlet 14 Side suction inlet 31 Blower fan 40 Air purification unit (1st cleaning process part)
41 Pre-filter 41a Filter part (first passage part)
41b Partition passage part (filter partition part)
41O hole (second passage)
42 Plasma ionization part (downstream member)
42 Photocatalyst filter 44 Plasma catalyst filter 63 Streamer discharge unit 90 Panel frame (mounting frame)
91 leaf spring 92 wire (wire to be contacted)
93 Curved part 99 Vibration prevention rib

Claims (3)

An air conditioner (1) for purifying air by electrifying and collecting a cleaning object,
A resin mounting frame (90);
It is made of a rod-shaped metal wire having a gentle outer periphery, and is supported at least at two points with respect to the mounting frame (90), and has a plurality of curved portions between the two points (90a, 90b). A contact wire (92);
An ionization line disposed so as to have an even portion where the bent portion of the wire to be contacted (92) is in contact with the curved portion at least more than 0 and has a substantially parallel relationship in the axial direction. (66)
A counter electrode plate (21) disposed in the vicinity of the ionization line (66) and substantially parallel to the longitudinal direction of the ionization line (66);
With
The ionized wire (66) is tensioned by elastically deforming the contacted wire (92) so that the positional relationship of the curved portion with respect to the two points changes.
Air conditioner (1). A leaf spring (91) for attaching each end of the ionization line (66) to the attachment frame (90);
One end of the ionization wire (66) is attached to one end portion in the longitudinal direction of the leaf spring (91), and the other end of the ionization wire (66) is attached to the other end portion in the longitudinal direction of the leaf spring (91). The attachment frame (90) is attached to a portion between one end and the other end in the longitudinal direction of the leaf spring (91).
The air conditioner (1) according to claim 1. The curved portion of the contacted wire (92) has a portion curved toward the side opposite to the direction displaced by the elastic deformation.
The air conditioner (1) according to claim 1 or 2.

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