JP2014109390A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner capable of suppressing corrosion of contact portions.SOLUTION: The air conditioner comprises: a first contact portion (47a) and a second contact portion (47b) which supply voltage to a discharge portion (152); a sirocco fan (3) which generates airflow (A) including a flow component along a direction from the second contact portion toward the first contact portion; an air flow path (C) where the airflow passes through; a branch flow path (D) which branches off from the air flow path and into which branch current (A1) from the airflow flows; a housing for the first contact portion (S2) which houses the first contact portion; a housing for the second contact portion (S3) which is provided facing the housing for the first contact portion with the branch flow path interposed therebetween and houses the second contact portion; and a guide portion (44) which is provided on the branch flow path and leads a part of the branch current into the housing for the second contact portion.

Description

  The present invention relates to an air conditioner.

  Conventionally, there are air conditioners that take in indoor air and blow out the purified air into the room by removing and decomposing suspended matters (odor components, dust, bacteria, viruses, etc.) in the air that has been taken in. ing. The air conditioner of patent document 1 (patent 5051316 gazette) has a discharge part, The active species is produced | generated by this discharge part. The air conditioner supplies active species to the air taken in from the room, thereby removing and decomposing suspended matters and blowing out clean air. A voltage is supplied to the discharge part via a contact part provided in the vicinity of the discharge part. The contact portion is preferably supplied with purified air in order to suppress corrosion of the contact portion.

  However, depending on the flow of air to the contact portion, air taken from the room can be supplied to the contact portion as it is. Therefore, air containing dust or the like is supplied to the contact portion, and the contact portion can be corroded.

  Then, the objective of this invention is providing the air conditioner which can suppress the corrosion of a contact part.

  An air conditioner according to a first aspect of the present invention includes a discharge unit, a first contact unit and a second contact unit that supply voltage to the discharge unit, a sirocco fan, a blower channel, a branch channel, 1 contact part accommodating part, 2nd contact part accommodating part, and a guide part are provided. The sirocco fan generates a blowout flow including a flow component along a direction from the second contact portion toward the first contact portion. The blowing flow passes through the air flow path. The branch flow path branches off from the blower flow path, and a branch flow branched from the blowout flow flows. The first contact portion accommodating portion accommodates the first contact portion. The second contact portion accommodating portion is provided to face the first contact portion accommodating portion across the branch flow path, and accommodates the second contact portion. The guide portion is provided in the branch flow path and guides a part of the diversion to the second contact portion accommodating portion.

  As described above, since the guide portion is provided in the branch flow path, the second contact portion accommodating portion even if the branch flow includes a flow component from the second contact portion accommodating portion toward the first contact portion accommodating portion. It is possible to promote the supply of the diversion flow. As a result, the supply of the cleaned diversion flow to the second contact portion can be promoted, and corrosion of not only the first contact portion but also the second contact portion due to dust or the like can be suppressed.

  An air conditioner according to a second aspect of the present invention is the air conditioner according to the first aspect of the present invention, wherein each of the first contact portion accommodating portion and the second contact portion accommodating portion has an opening for taking in a diversion. doing.

  Thereby, it is possible to suppress the excessive supply of the diversion to each contact portion and to supply the diversion to each contact portion while ensuring the supply of the diversion to the discharge portion.

  An air conditioner according to a third aspect of the present invention is the air conditioner according to the first aspect of the present invention, and is provided upstream of the flow of air toward the sirocco fan, and from air taken in by driving of the sirocco fan. A filter for removing dust is further provided.

  Thereby, since the shunt flow after dust and the like removed by the filter is supplied to the contact portion, it is possible to suppress the contact portion from being corroded by dust and the like.

  The air conditioner which concerns on the 4th viewpoint of this invention is an air conditioner which concerns on the 1st viewpoint of this invention, Comprising: The discharge part which adjoins a 1st contact part and a 2nd contact part, and accommodates a discharge part A storage part is further provided.

  Thus, since the discharge part accommodating part is provided adjacent to each contact part, the connection between the discharge part and the first and second contact parts is easy.

  An air conditioner according to a fifth aspect of the present invention is the air conditioner according to the first aspect of the present invention, wherein the diversion flows along the rotational axis direction of the sirocco fan, and the first and second contact portions are accommodated. The opening of the part takes in the diverted flow so as to flow in a direction crossing the rotation axis direction.

  The guide part includes a first side wall and a second side wall. The first side wall extends in a direction generally along the rotation axis direction. The second side wall introduces the diverted flow that flows along the first side wall into the opening of the second contact portion accommodating portion.

  Thus, the guide part is comprised by the 1st side wall and the 2nd side wall, and it can guide the diversion | purification flow cleaned to the contact part by simple structure. Moreover, by providing the openings in the respective accommodating portions, the momentum of the diversion flowing into the openings is suppressed, and noise when the diversion flows into the openings can be suppressed.

  An air conditioner according to a sixth aspect of the present invention is the air conditioner according to the first aspect of the present invention, wherein the guide portion is formed to a size capable of suppressing the generation of sound due to the introduction of a diversion. .

  The air conditioner can be driven with low noise by setting the size of the guide portion to a size that can suppress the generation of sound due to the introduction of the diversion.

  In the air conditioner according to the first aspect of the present invention, the supply of the cleaned shunt flow to the second contact portion is promoted, and not only the first contact portion but also the second contact portion is prevented from being corroded by dust or the like. it can.

  In the air conditioner according to the second aspect of the present invention, an excessive diversion is suppressed from being supplied to each contact portion, and the diversion is supplied to each contact portion while ensuring the supply of the diversion to the discharge portion. be able to.

  In the air conditioner according to the third aspect of the present invention, since the shunt that has been cleaned by removing dust and the like by the filter is supplied to the contact portion, corrosion of the contact portion by dust and the like can be suppressed.

  In the air conditioner according to the fourth aspect of the present invention, since the discharge portion accommodating portion is provided adjacent to each contact portion, the discharge portion and the first and second contact portions can be easily connected.

  In the air conditioner according to the fifth aspect of the present invention, it is possible to guide the cleaned diversion to the contact portion by the guide portion having a simple configuration. Moreover, the noise at the time of a branch flow flowing in can be suppressed by taking in a branch flow by opening of each accommodating part.

  In the air conditioner according to the sixth aspect of the present invention, the air conditioner can be driven with low noise.

1 is a schematic external perspective view of an air conditioner according to an embodiment of the present invention. The exploded perspective view of an air harmony machine. The schematic front view of the air conditioner of the state which removed the front panel and the attachment unit. The disassembled perspective view of the main body attachment unit seen from the back side. The disassembled perspective view of the main body attachment unit seen from the front panel side. The schematic perspective view of a discharge unit. Explanatory drawing which shows the flow component contained in the main airflow A. FIG. Explanatory drawing which shows the flow component contained in branch flow A1a.

<Embodiment>
Hereinafter, an air conditioner 1 according to an embodiment of the present invention will be described with reference to the drawings.

(1) Schematic Configuration of Air Conditioner 1 FIG. 1 is a schematic external perspective view of an air conditioner 1 according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the air conditioner 1. FIG. 3 is a schematic front view of the air conditioner 1 with the front panel 20 and the main body attachment unit 40 removed. FIG. 4 is an exploded perspective view of the main body mounting unit 40 as viewed from the back side. FIG. 5 is an exploded perspective view of the main body mounting unit 40 as viewed from the front panel side. FIG. 6 is a schematic perspective view of the discharge unit 50. In the following description, terms indicating directions such as up, down, left, right, front (front), and back (back) are used. These directions are shown in FIG. 1 unless otherwise specified. Means direction.

  The air conditioner 1 has an air purifying function for purifying air in an installed air-conditioned space (for example, indoors). The air conditioner 1 is a floor-standing type, and includes a main body 10, a front panel 20, a main body mounting unit 40 (see FIG. 4), and a discharge unit 50, as shown in FIGS. .

(1-1) Main body 10
As shown in FIG. 1, the main body 10 has a substantially rectangular parallelepiped shape.

  The main body 10 is formed with suction ports 11a (see FIG. 3) and 11b (see FIG. 1) for sucking air in the air-conditioned space. Specifically, the suction ports 11 a and 11 b are respectively formed on both side surfaces of the main body 10. Further, when the front panel 20 is attached to the main body 10, a suction space 11 c is formed between the main body 10 and the front panel 20. Specifically, the suction space 11 c is formed in a lower part in front of the main body 10 and a lower part in the rear of the front panel 20. The suction space 11c functions as a suction port for sucking air in the air-conditioned space together with the suction ports 11a and 11b. In other words, the air conditioner 1 sucks air in the air-conditioned space from the side and below. Further, the main body 10 is formed with an air outlet 12 for blowing out purified air to the air-conditioned space. Specifically, the air outlet 12 is formed in the upper rear part of the main body 10. In the air conditioner 1, the air sucked into the main body 10 through the suction ports 11 a and 11 b and the suction space 11 c is purified inside the main body 10, and the purified air is passed through the outlet 12. It is discharged out of the main body 10. In the following description, the air that is sucked into the main body 10 through the suction ports 11a and 11b and the suction space 11c and blown out of the main body 10 through the air outlet 12 is referred to as main air flow (as appropriate as main air flow A and Shown in FIG. 2).

  The main body 10 is formed with a plurality of small-diameter active species supply openings 13 (see FIGS. 2 and 3) having a function of supplying the active species generated by the discharge unit 50 to the main air flow A. Yes. In FIG. 2, not all active species supply openings 13 are shown.

  Inside the main body 10, an air cleaning unit 2, a fan 3, and a control unit (not shown) are mainly disposed. Hereinafter, these will be described.

(1-1-1) Air purification unit 2
As shown in FIG. 2, the air purification unit 2 mainly includes a first prefilter (not shown), an ionization unit 22, a second prefilter 23, a HEPA filter 24, and a deodorizing filter 25. ing. These are arranged in order from the upstream side to the downstream side of the main airflow A.

  The first pre-filter is provided in the suction ports 11a and 11b and captures relatively large dust in the air sucked from the suction ports 11a and 11b.

  The ionization unit 22 charges the dust that has not been captured by the first prefilter. Specifically, in the ionization unit 22, dust is charged by generating a discharge between a pair of counter electrodes and an ionization line disposed between the counter electrodes.

  The second pre-filter 23 captures relatively large dust in the air sucked from the suction ports 11a and 11b and the suction space 11c.

  The HEPA filter 24 adsorbs dust charged by the ionization unit 22, or adsorbs dust in the air that has been sucked from the suction space 11c and passed through the second prefilter 23.

  The deodorizing filter 25 contains activated carbon or the like, and adsorbs and decomposes odors and toxic gases in the air that have passed through the first prefilter, the ionization unit 22, the second prefilter 23, and the HEPA filter 24.

(1-1-2) Fan 3
The fan 3 is disposed on the downstream side of the main air flow of the air cleaning unit 2 and is attached to the back side portion of the main body 10. The fan 3 has a function of generating the main air flow A. Specifically, the fan 3 is a sirocco fan, and sucks air that has passed through the air cleaning unit 2 from a direction in which the rotation shaft extends, and blows it out in a direction that extends in a direction perpendicular to the rotation shaft direction.

  As shown in FIG. 4, a main airflow guide plate 3 a for guiding the main airflow A generated by the fan 3 to the outlet 12 is provided around the fan 3. The main air flow guide plate 3a is formed by connecting a circumferential portion 3a1 that surrounds a part of the fan 3 and an oblique plate portion 3a2 that forms an acute angle with the circumferential portion 3a1. The oblique plate portion 3 a 2 is inclined so as to go to the air outlet 12, and forms a part of the air flow path C that guides the main air flow A to the air outlet 12. Further, the air flow path C is connected to a branch flow path D branched from the air flow path C. The branch channel D is a channel that guides a part of the main air flow A from the blower channel C from the back side to the front side of the main body 10. Therefore, after the main air flow A passes through the air flow path C, a part thereof is guided to the front side of the main body 10 via the branch flow path D, and the rest is guided to the air outlet 12.

(1-1-3) Control Unit The control unit is composed of a plurality of electrical components located below an operation unit (not shown) that can be operated by the user, and controls operations of various devices in the main body 10. Specifically, the control unit controls the air purification unit 2, the fan 3, and the like based on a user instruction input via the operation unit.

(1-2) Front panel 20
As shown in FIG. 1, the front panel 20 is a member that forms the front surface of the air conditioner 1, and is attached to the main body 10 from the front of the main body 10. The front panel 20 has a function of opening / closing the main body 10 by being attached to and detached from the front surface of the main body 10.

(1-3) Body mounting unit 40
The main body mounting unit 40 is disposed above the air cleaning unit 2 and the fan 3. Specifically, as shown in FIG. 3, a housing space S <b> 1 for housing the body mounting unit 40 is formed in the body 10 above the air cleaning unit 2 and the fan 3. The main body attachment unit 40 is attached to the main body 10 by being accommodated in the accommodation space S1 and being fixed to the main body 10 with screws or the like. A branch flow A1 that is a part of the main airflow A (blowout flow) blown out from the blower outlet 12 flows into the main body mounting unit 40 from the rear.

  The main body attachment unit 40 includes a main body portion 41 shown in FIG. 4 and a lid portion (not shown) that is attached to the main body portion 41 and fixed by screwing.

  A branch channel D is formed in the central region of the back surface of the main body 41 to guide the diversion A1 to the front surface of the main body 10. The branch channel D has a first branch channel D1 and a second branch channel D2. The divided flow A1 includes a divided flow A1a and a divided flow A1b. The divided flow A1a is guided to the front surface of the main body 10 via the first branch flow path D1, and the divided flow A1b is guided to the front surface of the main body 10 via the second branch flow path D2. Led to.

  A contact portion accommodation space S2 and a contact portion accommodation space S3 for accommodating the fixed contact portions 47a and 47b are provided at positions facing each other across the branch flow path D. The contact portion accommodating spaces S2 and S3 will be described later.

  The first branch flow path D1 has a first intake port 43a and a first diversion guide part 42, and is connected to the discharge unit 50 and the contact part accommodating space S2. The first branch flow path D1 is formed by a space in which a first branch guide portion 42, a part of a side wall of the contact portion accommodating space S2, and a second branch guide portion 44 described later are covered by a lid portion (not shown). . The first intake port 43a takes in a branch flow A1a that is a part of the main air flow A that passes through the air flow path C. The first diversion guide portion 42 is formed to be inclined upward from the upstream side to the downstream side of the air flow of the diversion A1a, and guides the diversion A1a to the discharge unit 50 and the contact portion accommodation space S2. More specifically, the branch flow A1a is guided along the first branch guide portion 42 that forms a part of the first branch flow path D1, and branches into the branch flow A1c and the branch flow A1d. The diversion A1c passes through the contact portion accommodating space S2 and is led to the discharge unit 50, and the diversion A1d passes through the first branch flow path D1 as it is and is led to the discharge unit 50.

  The second branch flow path D2 has a second intake port 43b and a second branch guide portion 44, and is connected to the contact portion accommodating space S3. The second branch channel D2 is formed by a space in which a part of the side walls of the second branch guide portion 44 and the contact portion accommodating space S3 is covered with a lid portion (not shown). The second intake port 43b takes in a branch flow A1b that is a part of the main air flow A that passes through the air flow path C. The second diversion guide portion 44 is provided in a region adjacent to the contact portion accommodation space S3. The second diversion guide portion 44 forms a part of the second branch flow path D2, and guides the diversion A1b taken from the second intake port 43b to the contact portion accommodation space S3. The diversion A1b led to the contact portion accommodating space S3 is led to the discharge unit 50.

  The aforementioned second diversion guide portion 44 has a first side wall 44a and a second side wall 44b as shown in FIG. The first side wall 44a is opposed to the side wall W1 of the contact portion accommodating space S3 facing the first side wall 44a with a predetermined width. The first side wall 44 a has a tip wall that starts from substantially the same position as the opening end of the second intake port 43 b and extends in a direction substantially along the rotational axis direction of the fan 3. The second side wall 44b is formed continuously with the first side wall 44a, and is connected to the branch flow intake opening 48b of the contact portion accommodating space S3. The first side wall 44 a and the second side wall 44 b are generally L-shaped, and are provided so as to intersect the plate surface of the first diversion guide portion 42.

  Moreover, the inside of the main body 41 is divided into a plurality of spaces by a plurality of partition plates. The contact portion accommodation spaces S2 and S3 described above are located on both sides of the plurality of spaces across the branch channel D (the first branch channel D1 and the second branch channel D2). The contact portion accommodating spaces S2 and S3 are spaces for accommodating the fixed contact portions 47a and 47b. The contact portion accommodating spaces S2 and S3 are covered with a lid portion (not shown) disposed on the main body mounting unit 40.

  The contact portion accommodating space S2 is a box-shaped space whose side wall surrounds the fixed contact portion 47a with respect to the bottom surface, and has a branch intake opening 48a in a part of the side wall facing the first branch flow path D1. The contact portion accommodating space S2 is formed so as to communicate with the first branch flow path D1 through the diversion intake opening 48a. Therefore, the diversion A1c which is a part of the diversion A1a flows into the contact portion accommodating space S2 through the diversion intake opening 48a. At this time, the split flow intake opening 48a takes in the split flow A1c so as to flow in a direction intersecting the rotation axis direction of the fan 3.

  The contact portion accommodating space S3 is a box-like space whose side wall surrounds the fixed contact portion 47b with respect to the bottom surface, and has a branch intake opening 48b in a part of the side wall facing the second branch flow path D2. More specifically, among the side walls forming the contact portion accommodating space S3, the side walls facing the second branch flow path D2 include a side wall W1 and a side wall W2, as shown in FIG. A branch intake opening 48b is formed between the side wall W1 and the side wall W2. The first side wall 44a and the second side wall 44b of the second branch guide portion 44 are continuously connected, and the second side wall 44b is continuously connected to the side wall W2 of the contact portion accommodating space S3. As a result, the second branch flow path D2 is formed, and the split flow A1b that is a part of the split flow A1 flows into the contact portion accommodating space S3 via the second branch flow path D2 and the split flow intake opening 48b. At this time, the diversion intake opening 48b takes in the diversion A1b so as to flow in a direction intersecting the rotation axis direction of the fan 3.

  Moreover, the discharge unit accommodation space S4 in which the discharge unit 50 is accommodated is located in the central portion and the front portion of the main body 41 among the plurality of spaces. The discharge unit accommodation space S4 is adjacent to the contact portion accommodation spaces S2 and S3, and is located on the downstream side of the air flow of the branch flow A1 taken into the contact portion accommodation spaces S2 and S3. Therefore, the diversion A1b that has passed through the contact portion accommodation space S3, the diversion A1c that has passed through the contact portion accommodation space S2, and the diversion A1d that has passed through the first branch flow path D1 flow into the discharge unit accommodation space S4. The contact portion accommodation spaces S2, S3 and the discharge unit accommodation space S4 are partitioned by a partition plate 45.

  The partition plate 45 is formed with a concave portion 45a that is recessed inwardly (downward) in an upper portion and a central region. The partition plate 45 has insertion openings 46a and 46b into which insertion contact portions 52a and 52b (see FIG. 6 described later) of the discharge unit 50 can be inserted. The insertion openings 46 a and 46 b are respectively formed on both side portions of the partition plate 45. In a state in which the discharge unit 50 is attached to the main body attachment unit 40, the insertion contact portions 52a and 52b of the discharge unit 50 are located in the contact portion accommodating spaces S2 and S3 and are in contact with the fixed contact portions 47a and 47b. Take a state. In the present embodiment, the contacts are formed in a state where the plug-in contact portions 52a and 52b are in contact with the fixed contact portions 47a and 47b. That is, the voltage is supplied to the discharge part 152 in the contact state of the plug-in contact parts 52a and 52b. In addition, when the insertion contact portions 52a and 52b are in contact, there is a gap during insertion between the insertion contact portions 52a and 52b and the insertion openings 46a and 46b.

  The divided flow A1a taken in from the first intake port 43a is branched into the divided flow A1c and the divided flow A1d, the divided flow A1c flows through the contact portion accommodating space S2, and the divided flow A1d flows up above the first branch flow path D1. Thereafter, the diversion A1c and the diversion A1d flow into the discharge unit accommodation space S4 via the insertion gap and the recess 45a, respectively. The diversion A1b taken from the second intake port 43b and flowing through the contact portion accommodation space S3 via the second branch flow path D2 flows into the discharge unit accommodation space S4 via the insertion gap. Therefore, in the discharge unit accommodation space S4, the diversion A1b, the diversion A1c, and the diversion A1d merge to form a diversion A1.

  Further, the main body 41 is formed with a diversion channel introduction opening for guiding the diversion A1 passing through the discharge unit 50 to a diversion channel (not shown) (in FIG. 5, formed at the left portion of the main body 41). Only the split channel introduction opening 49 is shown, but it is also formed on the right side). That is, the branch flow path introduction opening is formed so as to communicate with the discharge unit accommodation space S4. Here, the branch flow path is an air flow path communicating with the active species supply opening 13 and is formed on both sides of the air cleaning unit 2. The active species supply opening 13 is an opening for guiding the split air A1 supplied with the active species to the main air flow A. The shunt A1 to which the active species is supplied when passing through the discharge unit 50 is guided to the active species supply opening 13 by the shunt channel introduction opening and the shunt channel.

(1-4) Discharge unit 50
FIG. 6 is a schematic perspective view of the discharge unit 50.

  The discharge unit 50 generates active species by causing streamer discharge, and supplies the active species to the shunt A1 that passes through the discharge unit 50. The split flow A1 supplied with the active species by the discharge unit 50 is blown and joined to the main air flow A through the active species supply opening 13 described above. Specifically, the divided flow A <b> 1 supplied with the active species is blown out to the air flow before passing through the second prefilter 23 through the active species supply opening 13.

  The discharge unit 50 is detachably attached to the main body mounting unit 40 and includes a discharge unit casing 51. The discharge unit casing 51 is a rectangular parallelepiped member made of resin, and has an outer shape that matches the discharge unit accommodation space S4. The discharge unit casing 51 is composed of a plurality of (here, two) members. The plurality of members are connected by screwing or the like, and the inside of the discharge unit casing 51 can be inspected by removing the screws connecting the plurality of members. The discharge unit casing 51 is formed with a plurality of openings 51a. The shunt A1 that flows to the discharge unit 50 through the opening 51a flows to the shunt passage introduction opening.

  The discharge unit 50 mainly includes a discharge unit 152. The discharge part 152 is accommodated in the discharge unit casing 51. That is, the discharge unit 50 forms therein a discharge part accommodating space S5 for accommodating the discharge part 152 therein.

  The discharge part 152 is a main part that generates streamer discharge and generates active species, and includes a discharge electrode 152a and a counter electrode 152b.

  The discharge electrode 152 a includes a metal plate 155 and a discharge needle 156.

  The metal plate 155 has a substantially rectangular shape, and is attached to the back surface of the discharge unit casing 51 so as to be substantially parallel. That is, the metal plate 155 is attached so that the wide and long flat portion 155d faces the horizontal direction (front-rear direction). The metal plate 155 is attached to the discharge unit casing 51 by screwing both ends of the metal plate 155 to the back surface of the discharge unit casing 51 by a plurality of (here, two) screws 157 and 157. The metal plate 155 is connected to an insertion contact portion 52a for supplying a voltage to the discharge electrode 152a. The insertion contact portion 52 a extends to a position protruding outward from the outer surface of the discharge unit casing 51. The insertion contact portion 52a is covered with a first insulating member (not shown) having a cavity.

  The metal plate 155 has a plurality of (here, three) cut and raised portions 155a, 155b, and 155c. The cut-and-raised portions 155a, 155b, and 155c extend forward from the flat portion 155d (specifically, in the vertical direction with respect to the horizontal plane of the counter electrode 152b).

  The discharge needle 156 is a discharge member that performs discharge. The discharge needle 156 has a thin cylindrical shape and is made of an elastically deformable metal member (specifically, for example, tungsten). The discharge needle 156 extends laterally (in the left-right direction) from both side portions of the cut and raised portions 155a, 155b, and 155c. The diameter of the discharge needle 156 is 0.3 mm or less, preferably 0.2 mm or less. Further, the length of the discharge needle 156 is preferably 3.0 mm to 3.5 mm. By applying a voltage to the discharge needle 156, a streamer discharge is generated between the discharge needle 156 and the counter electrode 152b.

  The counter electrode 152b is made of a metal plate and has a substantially rectangular outer shape larger than the discharge electrode 152a. The counter electrode 152b is disposed so as to be separated from the discharge electrode 152a and to be opposed to the discharge electrode 152a (specifically, substantially parallel). The counter electrode 152b is also arranged so as to be substantially parallel to the discharge needle 156. Specifically, both ends of the counter electrode 152 b are screwed to the front surface of the discharge unit casing 51 by a plurality of (here, two) screws 158 and 158. In addition, an insertion contact portion 52b for supplying a voltage to the counter electrode 152b is connected to the counter electrode 152b. The insertion contact portion 52 b extends to a position that protrudes outward from the outer surface of the discharge unit casing 51. The insertion contact portion 52b is covered with a second insulating member (not shown) having a cavity.

  The discharge unit casing 51 further includes a flat plate-shaped cleaning member 153 that cleans the discharge needle 156 and a drive member 154 that rotates the cleaning member 153. The drive member 154 includes a drive gear 154b and a drive gear drive member 154c that drives the drive gear 154b. The drive gear 154b is rotated by driving the drive gear drive member 154c. As the drive gear 154b rotates, the cleaning member 153 connected to the tip of the drive shaft 154a rotates via the drive shaft 154a. By the rotation of the cleaning member 153, the deposits attached to the discharge needle 156 are removed and cleaned.

(2) Operation of the Air Conditioner 1 When the fan 3 is rotated by driving the fan motor, the main air flow A described above is generated. Specifically, first, air in the air-conditioned space flows into the main body 10 through the suction ports 11 a and 11 b and the suction space 11 c of the main body 10. When the air flow that has flowed into the main body 10 through the suction ports 11a and 11b and the suction space 11c passes through the air cleaning unit 2, relatively large dust, fine dust, odor, and the like are removed. Here, since the divided flow A1 to which the active species is supplied by passing through the discharge unit 50 is blown out to the air flow before passing through the second prefilter 23, the airflow passing through the second prefilter 23 is Contains active species. Therefore, the dust and odor adsorbed by the HEPA filter 24 and the deodorizing filter 25 located on the downstream side of the main air flow from the second pre-filter 23 are decomposed by the active species contained in the air flow that has passed through the second pre-filter 23. Is done.

  Then, the air flow cleaned by the air cleaning unit 2 flows into the fan 3 from the direction of the rotation axis of the fan 3 through a fan suction port (not shown). The air flow that has flowed into the fan 3 is redirected upward and is guided to the air outlet 12 via the air flow path C. The main air flow A guided to the air outlet 12 is blown upward through the air outlet 12, that is, supplied to the conditioned space outside the main body 10. A part of the main air flow A flows as a divided flow A1 to the main body attachment unit 40 via the first intake port 43a and the second intake port 43b, and flows through the discharge unit 50 attached to the main body attachment unit 40. Pass through and merge with the air flow before passing through the second pre-filter 23 through the active species supply opening 13.

(3) Directional component of main air flow A and branch flow A1a Next, the flow component contained in the main air flow A and branch flow A1a is demonstrated using FIG. 7A and FIG. 7B. FIG. 7A is an explanatory diagram illustrating a flow component included in the main air flow A, and FIG. 7B is an explanatory diagram illustrating a flow component included in the branch flow A1a.

  The main air flow A is generated by the rotation of the fan 3, passes through the air flow path C along the direction intersecting the rotation axis direction of the fan 3, and flows from the lower surface of the main body 10 toward the upper surface. Therefore, as shown in FIG. 7A, the main airflow A mainly includes a flow component v1_A along the direction intersecting the rotation axis direction of the fan 3 and a flow component v2_A along the direction from the lower surface of the main body 10 toward the upper surface. included. Further, since the main air flow A branches and becomes the diversion A1, the flow component v3_A along the direction from the back surface side to the front surface side of the main body 10 can also be included. Here, the flow component v1_A of the main air flow A is a flow component along the direction from the contact portion accommodation space S3 toward the contact portion accommodation space S2.

  The branch flow A1a flowing through the first branch flow path D1 is branched from the main air flow A. Therefore, the branch flow A1a also has the same flow component as the main air flow A. That is, as shown in FIG. 7B, the diversion A1a includes a flow component v1_A1a along the direction from the contact portion accommodation space S3 toward the contact portion accommodation space S2, and a flow component v2_A1a along the direction toward the upper surface from the lower surface of the main body 10. And a flow component v3_A1a along the direction from the back side to the front side of the main body 10. Here, the first branch flow path D1 is a flow path from the back side to the front side of the main body 10, and the flow component of the branch flow A1a is affected by the passage of the first branch flow path D1. Therefore, the flow component v3_A1a along the direction from the back side to the front side of the main body 10 can be larger than the flow component v3_A of the main air flow A. Conversely, the flow component v2_A1a along the direction from the lower surface to the upper surface of the main body 10 can be smaller than the flow component v2_A of the main air flow A.

  As described above, since the diversion A1a has the flow component v1_A1a along the direction from the contact portion accommodation space S3 toward the contact portion accommodation space S2, it is easily guided to the diversion intake 48a of the contact portion accommodation space S2 shown in FIG. It has become a flow. On the other hand, the diversion intake opening 48b of the contact portion accommodating space S3 is provided in the direction opposite to the flow component v1_A1a of the diversion flow A1a with respect to the branch flow path D. Therefore, when the second diversion guide portion 44 is not provided, it is difficult to guide the diversion A1a to the contact portion accommodation space S3 through the diversion intake opening 48b. In the present embodiment, since the second diversion guide portion 44 is provided, the diversion A1b, which is a part of the diversion A1, is taken into the second branch flow path D2 by the second diversion guide portion 44, and the contact portion accommodation space S3. Can lead.

(4) Flow of the diversion A1 in the main body mounting unit 40 Next, the flow of the diversion A1 in the main body mounting unit 40 will be described.

  In the state where the discharge unit 50 is accommodated in the discharge unit accommodation space S4, the operation of the air conditioner 1 is started. At this time, the discharge part accommodation space S5 formed by the discharge unit 50 is adjacent to the contact part accommodation spaces S2 and S3, and is located downstream of the branch part A1 with respect to the contact part accommodation spaces S2 and S3.

  The flow of the diversion A1 in the main body mounting unit 40 in this state will be described below with reference to FIGS. The arrows shown in FIGS. 4 to 6 indicate the flows of the diversions A1a, A1b, A1c, A1d, A1e, and A1f.

  First, the main air flow A is generated by driving the fan motor of the fan 3. And only by the wind pressure of the fan 3, a part of blowing flow blown out from the blower outlet 12 flows into the inside of the main body attachment unit 40 as the diversion A1. The branch flow A1 branches into a branch flow A1a and a branch flow A1b, and the branch flow A1a flows into the first branch flow path D1 of the main body mounting unit 40 via the first intake port 43a. On the other hand, the diversion A1b flows into the second branch flow path D2 of the main body mounting unit 40 via the second intake port 43b.

  The diversion A1a is divided into a diversion A1c and a diversion A1d that flows forward, above the first branch flow path D1. Specifically, the shunt A1a is shunted into a shunt A1c that flows to the contact portion accommodating space S2 and a shunt A1d that flows to the discharge unit 50. At this time, as described above, since the diversion A1a has the flow component v1_A1a along the direction from the contact portion accommodation space S3 toward the contact portion accommodation space S2, the diversion A1c branched from the diversion A1a can be easily performed. Led to.

  The diversion A1b is taken in from the second intake port 43b, flows along the second branch flow path D2, and flows into the contact portion accommodating space S3 via the diversion intake opening 48b. At this time, as described above, the main air flow A has the flow component v1_A along the direction from the contact portion accommodation space S3 toward the contact portion accommodation space S2. Therefore, the branch flow branched from the main air flow A also has the same flow component, but since the second branch guide portion 44 is provided, the branch flow A1b of the main air flow A is guided to the second branch flow path D2. .

  The diverted flow A1c flowing into the contact portion accommodating space S2 and the diverted flow A1b flowing into the contact portion accommodating space S3 are inserted through a gap at the time of insertion between the insertion contact portions 52a, 52b and the insertion openings 46a, 46b. Then, it flows forward (that is, the discharge unit 50 side). The shunt A1d that has flowed to the discharge unit 50 joins with the shunts A1b and A1c that flow forward through the gap at the time of insertion to become a shunt A1. Then, the divided flow A1 where the divided flows A1b, A1c, A1d merge in the discharge unit 50 passes through the plurality of openings 51a formed in the discharge unit casing 51 constituting the discharge unit 50, and is divided again to be divided into the divided flows A1e, A1f. As shown in FIG. Then, the diversion flows A1e and A1f guided to the diversion channel introduction opening 49 flow to the diversion channel via the diversion channel introduction opening 49. Then, the split flows A1e and A1f that have flowed to the branch flow path join the air flow before passing through the second prefilter 23 via the active species supply opening 13 communicating with the branch flow path, and become the main air flow A. .

  In the present embodiment, the split flow A1 is branched into the split flows A1a and A1b, the split flow A1c that is a part of the split flow A1a is supplied to the contact portion accommodation space S2, and the split flow A1b is supplied to the contact portion accommodation space S3. Thereby, the atmospheric pressure in the contact portion accommodating spaces S2, S3 is made higher than the atmospheric pressure in the discharge portion accommodating space S5.

(5) Features (5-1)
Depending on the air flow to the fixed contact portions 47a and 47b, the air taken in from the room can be supplied to the fixed contact portions 47a and 47b as it is. Therefore, air containing dust or the like is supplied to the fixed contact portions 47a and 47b, and the fixed contact portions 47a and 47b can be corroded. Therefore, it is necessary to supply purified air to the fixed contact portions 47a and 47b. However, it is difficult to supply sufficiently purified air to the fixed contact portion 47b due to the flow component included in the main air flow A generated by the fan 3.

  Therefore, in the present embodiment, the second branch guide portion 44 is provided in the branch flow path D. The second diversion guide portion 44 guides the diversion A1b that is a part of the diversion A1 branched from the main air flow A to the contact portion accommodation space S3 that accommodates the fixed contact portion 47b.

  Here, the main air flow A generated by the fan 3 includes a flow component from the fixed contact portion 47b toward the fixed contact portion 47a. After passing through the air flow path C, the main air flow A is branched to become a branch flow A1 and flows into the branch flow path D. Since the flow component is included in the main air flow A, the branch flow A1 also includes a flow component from the fixed contact portion 47b toward the fixed contact portion 47a. In other words, the branch flow A1 includes a flow component from the contact portion accommodation space S3 toward the contact portion accommodation space S2. Therefore, the diversion A1c, which is a part of the diversion A1, flows into the contact portion accommodation space S2 along the flow component from the contact portion accommodation space S3 toward the contact portion accommodation space S2. Here, the contact portion accommodation space S3 is provided to face the contact portion accommodation space S2 across the branch flow path D, and is provided in a direction crossing the above-described flow component. Therefore, it is difficult to supply a sufficient diversion to the contact portion accommodation space S3 as compared to the contact portion accommodation space S2. However, in the above air conditioner, since the second diversion guide portion 44 is provided in the branch flow path D, for example, the diversion A1 includes a flow component from the contact portion accommodation space S3 toward the contact portion accommodation space S2. Also, the supply of the diversion A1b to the contact portion accommodating space S3 can be promoted. Thereby, supply of the diversion A1b to the fixed contact part 47b can be promoted. Here, the main air flow A generated by the fan 3 is cleaned by the active species generated by the discharge unit 152. This cleaned flow A1 of the main air flow A branches into a flow A1b and a flow A1c, respectively, so that the flow A1c is not only sufficiently supplied to the fixed contact 47a, but the flow A1b is sufficiently supplied to the fixed contact 47b. Therefore, both the fixed contact portion 47a and the fixed contact portion 47b can be prevented from being corroded by dust or the like.

  In particular, since the supply of the divided flow A1b flowing from the fan 3 side to the fixed contact portion 47b is promoted, it is possible to suppress uncleaned air from flowing into the fixed contact portion 47b side. That is, the flow of the divided flow A1b flowing from the fan 3 side to the fixed contact portion 47b pushes inflow of uncleaned air to the fixed contact portion 47b side. Also from this, corrosion of the fixed contact portion 47b can be suppressed. In addition, since the diversion A1c flows into the contact portion accommodating space S2 along the flow component, the flow of uncleaned air to the fixed contact portion 47a side is suppressed, and corrosion of the fixed contact portion 47a is also suppressed.

(5-2)
The contact portion accommodating space S2 has a diversion intake opening 48a for taking in the diversion A1c. Further, the contact portion accommodating space S3 has a diversion intake opening 48b for taking in the diversion A1b.

  The contact portions 47a and 47b are accommodated in the contact portion accommodating spaces S2 and S3, respectively. The diversion A1c is supplied to the fixed contact portion 47a through the diversion intake opening 48a. Further, the diverted flow A1b is supplied to the fixed contact portion 47b through the diverted flow intake opening 48b. Therefore, it is possible to suppress excessive supply of the diversions A1c and A1b to the contact portions 47a and 47b. Thereby, the diversion A1c and A1b can be supplied also to the contact portions 47a and 47b while ensuring the supply of the diversion A1d to the discharge portion 152.

(5-3)
The air conditioner 1 further includes filters 23, 24, and 25 that are provided upstream of the air flow toward the fan 3 and remove dust from the air taken in by driving the fan 3.

  Dust and the like are removed to some extent from the air taken into the air conditioner 1 by the filters 23, 24, and 25. Therefore, the fan 3 located downstream of the filters 23, 24, and 25 generates a main air flow A that is cleaned by removing dust and the like. Therefore, the diversion A1 is also cleaned. Since this clean diversion A1 is supplied to the fixed contact portions 47a and 47b, the fixed contact portions 47a and 47b can be prevented from being corroded by dust or the like.

(5-4)
The air conditioner 1 is further provided with a discharge part accommodation space S5 that is adjacent to the fixed contact parts 47a and 47b and that accommodates the discharge part 152.

  Since the discharge part accommodating space S5 is provided adjacent to the fixed contact parts 47a and 47b, the discharge part 152 and the fixed contact parts 47a and 47b can be easily connected.

(5-5)
The diversion A1 flows along the rotation axis direction of the fan 3, and the diversion take-in openings 48a and 48b of the contact portion accommodating spaces S2 and S3 take the diversions A1c and A1b so as to flow in a direction intersecting the rotation axis direction. The second branch guide portion 44 includes a first side wall 44a and a second side wall 44b. The first side wall 44a extends in a direction generally along the rotation axis direction. The second side wall 44b introduces the diverted flow A1b flowing along the first side wall 44b into the diverted intake opening 48b of the contact portion accommodating space S3.

  As described above, the second diversion guide portion 44 is configured by the first side wall 44a and the second side wall 44b, and the cleaned diversion can be guided to the fixed contact portion 47b with a simple configuration.

  Further, the split flow A1 (including the split flows A1b and A1c) flows along the rotation axis direction of the fan 3, whereas the split flow intake openings 48a and 48b of the contact portion accommodating spaces S2 and S3 intersect the rotation axis direction. It is provided so as to take in the diversions A1c and A1b in the direction, respectively. Therefore, the momentum at which the divided flow A1 flows into the divided flow intake openings 48a and 48b is suppressed, and noise when the divided flow A1 flows into the divided flow intake openings 48a and 48b can be suppressed.

(5-6)
The second diversion guide portion 44 is formed in a size capable of suppressing the generation of sound due to the introduction of the diversion A1b.

  A sound may be generated when the diversion A1b is introduced along the second diversion guide portion 44. The air conditioner 1 can be driven with low noise by making the size of the second diversion guide portion 44 small enough to suppress the generation of sound due to the introduction of the diversion A1b.

(6) Modification (6-1) Modification 1A
In the said embodiment, the 1st side wall 44a and the 2nd side wall 44b of the 2nd branch guide part 44 have comprised L shape. However, the shape of the second diversion guide portion 44 is not limited to this. For example, the connecting portion between the first side wall 44a and the second side wall 44b may not be bent and may have a curved shape so as not to hinder the flow of the diversion A1b. Further, the first side wall 44a and the second side wall 44b themselves may have a curved shape.

  Moreover, in the said embodiment, the 1st side wall 44a is extended in the direction in alignment with the rotating shaft direction of the fan 3 in general. However, the first side wall 44a does not need to extend in a direction substantially along the rotation axis direction of the fan 3 as long as a predetermined amount of the diversion A1b can be guided to the contact portion accommodating space S3. For example, the distal end wall of the first side wall 44a may be formed on the contact portion accommodation space S2 side so that the width of the second branch flow path D2 narrows from the second intake port 43b toward the back side.

  Moreover, in the said embodiment, the front-end | tip wall of the 1st side wall 44a is substantially the same position as the opening end of the 2nd intake port 43b. However, if a predetermined amount of the diversion A1b can be guided to the contact portion accommodating space S3, the tip wall of the first side wall 44a is located at a position closer to the front side of the main body 10 than the opening end of the second intake port 43b. There may be.

  In this way, the second diversion guide portion 44 is particularly configured as long as it can secure a predetermined amount of the diversion A1b supplied to the contact portion accommodating space S3 and can suppress noise caused by the presence of the second diversion guide portion 44. The shape is not limited.

(6-2) Modification 1B
In the above embodiment, the contact points 52a and 52b are inserted into the plug openings 46a and 46b and brought into contact with the fixed contact points 47a and 47b, thereby being electrically connected to form a contact. However, the present invention is not limited to this, and a contact (part) for supplying a voltage to the discharge part 152 in the contact part accommodating space may be formed in advance.

(6-3) Modification 1C
In the said embodiment, although demonstrated only to the floor-standing type air conditioner which has an air purifying function, it is not restricted to this. For example, it may be applied to an air conditioner that further has a humidifying function or a dehumidifying function, a ceiling-mounted air conditioner that is embedded or suspended in the ceiling, or a wall that is embedded or attached to a wall. You may apply to an attachment type air conditioner.

  The present invention is applicable to various air conditioners.

D1 1st branch flow path D2 2nd branch flow path S1 accommodation space S2, S3 contact part accommodation space S4 discharge unit accommodation space S5 discharge part accommodation space W1, W2 side wall 1 air conditioner 2 air purifying unit 3 fan 10 main body 11c suction Space 11a Suction port 12 Blowout port 13 Active species supply opening 20 Front panel 22 Ionization unit 23 Second pre-filter 24 HEPA filter 25 Deodorization filter 40 Main body attachment unit 41 Main body portion 42 First diversion guide portion 43a First intake port 43b First 2 intake port 44 2nd branch guide part 44a 1st side wall 44b 2nd side wall 47a, 47b Fixed contact part 48a, 48b Split flow intake opening 50 Discharge unit

Japanese Patent No. 5051316

Claims (6)

A discharge part (152);
A first contact part (47a) and a second contact part (47b) for supplying a voltage to the discharge part;
A sirocco fan (3) for generating a blowout flow (A) including a flow component along a direction from the second contact portion toward the first contact portion;
An air flow path (C) through which the blowing flow passes;
A branch channel (D) branched from the blower channel and into which a diverted flow (A1) branched from the blowing flow flows;
A first contact portion accommodating portion (S2) for accommodating the first contact portion;
A second contact portion accommodating portion (S3) that is provided opposite to the first contact portion accommodating portion across the branch flow path, and that accommodates the second contact portion;
A guide part (44) provided in the branch flow path, for guiding a part of the diversion to the second contact part accommodating part;
Air conditioner equipped with.   2. The air conditioner according to claim 1, wherein each of the first contact portion accommodating portion and the second contact portion accommodating portion has an opening (48 a, 48 b) that takes in the divided flow.   The air conditioner according to claim 1, further comprising a filter (23, 24, 25) provided upstream of a flow of air toward the sirocco fan and configured to remove dust from the air taken in by driving of the sirocco fan.   2. The air conditioner according to claim 1, further comprising a discharge part accommodating part (S <b> 5) adjacent to the first contact part and the second contact part and accommodating the discharge part. The split flow flows along the rotation axis direction of the sirocco fan, and the openings of the first and second contact portion accommodating portions take in the split flow so as to flow in a direction intersecting the rotation axis direction,
The guide portion is
A first side wall (44a) extending in a direction generally along the rotational axis direction;
A second side wall (44b) that introduces the diverted flow that flows along the first side wall into the opening of the second contact portion accommodating portion;
including,
The air conditioner according to claim 1.   The air conditioner according to claim 1, wherein the guide portion is formed to have a size capable of suppressing generation of sound due to the introduction of the branch flow.

Images