CN107530714B

CN107530714B - Discharge unit and air conditioner

Info

Publication number: CN107530714B
Application number: CN201680027133.5A
Authority: CN
Inventors: 大石晋也; 古桥拓也; 袴田浩之; 松原庸充; 曾根文彦
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2015-06-18
Filing date: 2016-04-04
Publication date: 2020-10-30
Anticipated expiration: 2036-04-04
Also published as: JP6425812B2; WO2016203816A1; JPWO2016203816A1; TW201712982A; TWI603559B; CN107530714A

Abstract

The discharge unit includes: a 1 st frame (15) formed with a 1 st opening for passing air therethrough; a 2 nd frame (14) formed with a 2 nd opening for passing air therethrough; a 3 rd frame (21) formed with a 3 rd opening for passing air therethrough; a discharge electrode disposed between the 1 st frame (15) and the 2 nd frame (14); a counter electrode (17) disposed between the 1 st frame (15) and the 2 nd frame (14); and a deodorizing filter (12) disposed between the 2 nd frame (14) and the 3 rd frame (21), the surface of which is coated with a conductive catalyst, and a deodorizing filter contact portion (17a) that is formed on the counter electrode (17) so as to protrude from the 2 nd frame (14) toward the 3 rd frame (21) and is in contact with the deodorizing filter (12).

Description

Discharge unit and air conditioner

Technical Field

The present invention relates to a discharge unit for performing electric dust collection and deodorization, and an air conditioner.

Background

In recent years, air cleaning devices have been widely used to maintain the air in buildings in a normal state, and one of the air cleaning devices is an air cleaning device including a discharge unit for performing electrostatic precipitation. The air cleaning device generally comprises: an ionizing section (charging section) that charges dust as suspended particles in the air by corona discharge; and a collector (dust collecting unit) for attaching the charged dust to the dust collecting plate by coulomb force. Patent document 1 discloses an air cleaning device having a deodorizing function for removing odor in addition to electrostatic precipitation.

Documents of the prior art

Patent document

Patent document 1: japanese patent No. 3882469

Disclosure of Invention

Problems to be solved by the invention

In such a discharge cell, it is desired to suppress the manufacturing cost by suppressing the number of components, to improve the dust collection efficiency, and to improve the deodorization performance.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a discharge unit capable of suppressing the manufacturing cost by electrically connecting a charging section and a dust collecting section while suppressing the number of components, and achieving an improvement in dust collecting efficiency and an improvement in deodorization performance.

Means for solving the problems

In order to solve the above problems and achieve the object, the present invention includes: a 1 st frame formed with a 1 st opening through which air passes; a 2 nd frame formed with a 2 nd opening for passing air therethrough; a 3 rd frame formed with a 3 rd opening through which air passes; a discharge electrode disposed between the 1 st frame and the 2 nd frame; a counter electrode disposed between the 1 st frame and the 2 nd frame; and a deodorizing filter disposed between the 2 nd frame and the 3 rd frame, the surface of the deodorizing filter being covered with a catalyst having conductivity, the opposing electrode being formed with a deodorizing filter contact portion protruding from the 2 nd frame toward the 3 rd frame and contacting the deodorizing filter, and the deodorizing filter being in contact with the opposing electrode by combining the 1 st frame, the 2 nd frame, and the 3 rd frame.

Effects of the invention

According to the discharge cell of the present invention, the following effects can be obtained: the number of components is reduced, and the charged part and the dust collecting part are electrically connected, so that the manufacturing cost is reduced, and the dust collecting efficiency and the deodorization performance are improved.

Drawings

Fig. 1 is a sectional view showing an installation state of an air conditioner according to embodiment 1 of the present invention.

Fig. 2 is a top view of the air conditioner according to embodiment 1.

Fig. 3 is a view of the air conditioner according to embodiment 1 as viewed from the bottom, and shows a state in which the decorative grill is removed.

Fig. 4 is a perspective view of the fan housing in embodiment 1.

Fig. 5 is a side view of the air conditioner according to embodiment 1.

Fig. 6 is a diagram showing a state in which the decorative grille of the air conditioner according to embodiment 1 is opened.

Fig. 7 is a perspective view of the air conditioner of embodiment 1 as viewed from the bottom surface side, and is a view showing a state where the decorative grill is removed.

Fig. 8 is a perspective view of the decorative grid according to embodiment 1, as viewed from the opposite surface side.

Fig. 9 is an enlarged view of a flange rib portion in embodiment 1.

Fig. 10 is a partially enlarged cross-sectional view of embodiment 1, in which the outer peripheral portion of the 2 nd region between the flange and the decorative grid is enlarged.

Fig. 11 is a perspective view of the dust removing filter in embodiment 1.

Fig. 12 is a perspective view of a discharge cell in embodiment 1.

Fig. 13 is a perspective view of a discharge cell in embodiment 1.

Fig. 14 is a perspective view of the counter electrode in embodiment 1.

Fig. 15 is a cross-sectional view of the discharge cell in embodiment 1.

Fig. 16 is a perspective view of the discharge electrode in embodiment 1.

Fig. 17 is a perspective view of the discharge portion lower cover in embodiment 1.

Fig. 18 is a perspective view of the discharge portion lower cover in embodiment 1.

Fig. 19 is a perspective view of the discharge portion lower cover in embodiment 1.

Fig. 20 is a perspective view showing the discharge unit after the deodorizing filter in embodiment 1 is removed.

Fig. 21 is a perspective view showing the discharge unit after the deodorizing filter cover in embodiment 1 is removed.

Fig. 22 is a cross-sectional view of the discharge cell in embodiment 1, showing a grounding structure of the deodorizing filter and the counter electrode.

Fig. 23 is a perspective view showing a method of removing the deodorizing filter cover of the discharge unit in embodiment 1.

Fig. 24 is a sectional view for explaining a discharge cell of a fixed structure at a portion a shown in fig. 12.

Fig. 25 is a partially enlarged view of a portion B shown in fig. 12.

Fig. 26 is a partially enlarged cross-sectional view of embodiment 1 with an enlarged portion of the connection between the discharge cell and the discharge cell terminal block.

Fig. 27 is a perspective view of the air conditioner according to embodiment 1 as viewed from the bottom, and is a view showing a state in which the decorative grill and the discharge unit are removed.

Fig. 28 is a perspective view of the air conditioner according to embodiment 1 as viewed from the bottom, and is a view showing a state in which the decorative grill and the discharge unit are removed.

Fig. 29 is a diagram schematically showing the flow of air in the discharge cell.

Detailed Description

Hereinafter, an air conditioner according to an embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to the embodiment.

Embodiment 1.

Fig. 1 is a sectional view showing an installation state of an air conditioner according to embodiment 1 of the present invention. The air conditioning apparatus according to embodiment 1 is a circulation fan that is attached to a ceiling or a wall of a room to circulate air in the room. Fig. 1 shows an example in which an air conditioner is mounted on a ceiling 26 as a horizontal mounting surface. If the installation surface is a vertical wall, the air conditioner is installed in a posture inclined by 90 ° from the example shown in fig. 1. Note that the terms indicating the direction used in the following description are based on the direction of the installation posture shown in fig. 1.

The air conditioner includes a main body 1, a sirocco fan 2, a decorative grill 6, and a discharge unit 5. Fig. 2 is a top view of the air conditioner according to embodiment 1. Fig. 3 is a view of the air conditioner of embodiment 1 as viewed from the bottom, and shows a state where the decorative grill 6 is removed.

The main body 1 has a box shape formed of resin. As shown in fig. 3, an opening 27 is formed on one face of the main body 1. The opening 27 is divided into an intake port 27a for taking air into the interior of the main body 1 and an exhaust port 27b for exhausting air from the interior of the main body 1. As shown by arrows in fig. 1, a flow path is formed inside the main body 1 to communicate the intake port 27a and the discharge port 27 b. The main body 1 is formed with a flange 1a projecting to the periphery of the opening 27. The flange 1a can also be said to extend parallel to the ceiling 26 as the mounting surface. A terminal block 8 that can be easily connected to an external power supply wire by a rotary structure is provided on the upper portion of the main body 1, and a control circuit 10 is provided in the circuit housing case 9.

A sirocco fan 2 as a fan is provided in a flow path formed inside the main body 1. In the sirocco fan 2, the fan 3 coupled to the drive shaft of the motor 7 rotates, and the sirocco fan 2 generates an air flow from the intake port 27a toward the discharge port 27b in the flow path. The sirocco fan 2 includes a fan case 4 accommodating the fan 3. Fig. 4 is a perspective view of fan housing 4 in embodiment 1. An opening for taking in air is formed in the fan casing 4.

Fig. 5 is a side view of the air conditioner according to embodiment 1. The decorative grille 6 is a plate-like member facing the opening 27 and the flange 1 a. The decorative grille 6 is disposed separately from the opening 27 and the flange 1 a. The decorative grille 6 functions to improve the appearance of the air conditioner and to prevent foreign matter from entering the fan 3 when the air conditioner is closed. The decorative grid 6 is an integrally molded resin. An outer surface 29 of the decorative grille 6 on the back side, which is an opposing surface 28 opposing the opening 27 and the flange 1a, is formed as a flat surface.

As shown in fig. 5, the shaft 6a and the claw 6b formed on the decorative grill 6 are fitted to the bearing portion 1d and the claw 1e formed on the main body 1, respectively, whereby the decorative grill 6 is fixed to the main body 1. Fig. 6 is a diagram showing a state in which the decorative grille 6 of the air conditioner according to embodiment 1 is opened. By detaching the claw 6b of the decorative grill 6 from the claw 1e of the body 1, the decorative grill 6 can be rotated about the shaft 6a and the bearing 1d as shown in fig. 6, and the decorative grill 6 can be opened.

Returning to fig. 1, the air conditioner is provided with a rib 30, the rib 30 dividing the opening 27 and the space between the flange 1a and the decorative grille 6 into a 1 st area 31 and a 2 nd area 32 when viewed from a direction perpendicular to the opening 27. The 1 st region 31 faces the access port 27a of the main body 1. The 2 nd region 32 is opposed to the discharge port 27b of the main body 1.

Fig. 7 is a perspective view of the air conditioner of embodiment 1 as viewed from the bottom surface side, and is a view showing a state where the decorative grill 6 is removed. Fig. 8 is a perspective view of the decorative grid 6 in embodiment 1 viewed from the side of the facing surface 28. The rib 30 provided in the air conditioner is formed by combining a flange rib 1f (see fig. 7) formed on the flange 1a of the main body 1, a grill rib 6c (see fig. 8) formed on the facing surface 28 of the decorative grill 6, and a housing rib 4c formed on the fan housing 4. More specifically, in a region facing the opening 27, the grill rib 6c and the housing rib 4c overlap in the height direction, and flange ribs 1f are provided on both sides thereof, thereby constituting a rib 30 that divides the opening 27 and the space between the flange 1a and the decorative grill 6 into a 1 st region 31 and a 2 nd region 32. With this structure, the rib 30 becomes a rib 30 extending from the end of the flange 1a (the decorative grill 6) to the other end. Thus, both the 1 st region 31 and the 2 nd region 32 include at least the end surface region of the flange 1a (decorative grille 6).

Fig. 9 is an enlarged view of a part of a flange rib 1f in embodiment 1. The flange rib 1f in the present embodiment, which is a portion of the rib 30 that is an end portion that is close to the outer periphery of the decorative grill 6, forms a separation surface 33 on a surface facing the 2 nd area 32 side, and the separation surface 33 is separated from the 1 st area 31 toward the 2 nd area 32 side as it goes from the center side toward the end portion side of the rib 30. For example, in the case where the width of the flange 1a is 25mm, the separation surface 33 is formed in a range of 12.5mm from the end portion. The angle formed by the separation surface 33 and the surface of the flange rib 1f facing the 1 st region 31 side is set to 30 °. In embodiment 1, the flange rib 1f is wider from the center side toward the end side of the rib 30, and forms the separation surface 33. The portion forming the separating surface 33 has a triangular prism shape.

Fig. 10 is a partially enlarged cross-sectional view of embodiment 1, in which the outer peripheral portion of the 2 nd region 32 between the flange 1a and the decorative grid 6 is enlarged. As shown in fig. 10, an inclined surface 34 is formed on the flange 1a in the 2 nd region 32, and the inclined surface 34 approaches the decorative grill 6 as it goes toward the outer periphery of the flange 1 a. In addition, a protrusion 6d is formed in a portion of the decorative grille 6 that faces the inclined surface 34, and the protrusion 6d extends in parallel with the outer periphery of the decorative grille 6 (see also fig. 8). The inclined surface 34 may be formed on the flange 1a in the 1 st region 31.

For example, when the width of the flange 1a is 25mm and the interval between the outer peripheral end of the flange 1a and the outer peripheral end of the decorative grill 6 is 11mm, the inclination angle of the inclined surface 34 is set to 12 °, and the distance between the outer peripheral end of the inclined surface 34 and the outer peripheral end of the flange 1a is set to 2 mm. In addition, a protrusion 6d is formed at a height of 3mm at a position 20mm inward from the outer peripheral end of the decorative grill 6.

In the air conditioner, the sirocco fan 2 is operated, and the fan 3 is rotated to take air into the main body 1 from the intake port 27a, and discharge the air from the discharge port 27b through the flow path in the main body 1. Thereby, air is sucked into the 1 st region 31 from between the flange 1a and the decorative grill 6, and air is blown out from the 2 nd region 32 through between the flange 1a and the decorative grill 6. That is, the outer peripheral portion of the 1 st area 31 between the flange 1a and the decorative grill 6 serves as an intake port for intake air, and the outer peripheral portion of the 2 nd area 32 serves as an outlet port for outlet air. Therefore, in the air conditioner, the suction port and the discharge port are adjacent to each other with the rib 30 interposed therebetween.

Here, since the separating surface 33 is formed on the rib 30 (flange rib 1f) which is the boundary between the suction port and the discharge port, the air blown along the rib 30 is guided in the direction (the direction indicated by the arrow X in fig. 9) away from the 1 st area 31. Therefore, a short circuit is less likely to occur in which the air blown out from the 2 nd area 32 is immediately sucked from the 1 st area 31.

In this way, even if the suction port and the discharge port are adjacent to each other in the space between the flange 1a and the decorative grill 6, the occurrence of short circuits can be suppressed, and therefore, one of the suction port and the discharge port does not need to be formed on the outer surface 29 of the decorative grill 6. Further, the outer surface 29 can be formed as a flat surface without providing unevenness on the outer surface of the decorative grille 6 in order to suppress the occurrence of short-circuiting. This improves the appearance of the air conditioner. Further, since the outer surface 29 is formed as a flat surface, the processing cost can be suppressed, and thus the manufacturing cost of the air conditioner can be suppressed.

In addition, when air blown out from the gap between the flange 1a and the decorative grille 6 comes into contact with the ceiling 26, there is a possibility that the ceiling surface is contaminated. On the other hand, in embodiment 1, since the air blown out from the gap between the flange 1a and the decorative grill 6 is guided in a direction (the direction indicated by the arrow Y in fig. 10) away from the ceiling 26 by the inclined surface 34 formed on the flange 1a, the ceiling 26 is less likely to be contaminated. Further, by temporarily directing the flow of air toward the inclined surface 34 side by the protrusion 6d formed on the facing surface 28 of the decorative grill 6, the effect of guiding air by the inclined surface 34 after that can be more reliably exhibited. Further, since it is not necessary to form an air outlet on the outer surface 29 of the decorative grille 6 in order to prevent the air blown out of the air conditioner from coming into contact with the ceiling 26, the appearance of the air conditioner can be improved. Further, if the inclined surface 34 is formed also on the flange 1a in the 1 st region 31, it is possible to suppress the air sucked by the air conditioner from contacting the ceiling 26 and contaminating the ceiling surface.

The air conditioner is fixed to the ceiling 26 by fixing screws such as wood screws at a position of at least 4 positions by fixing screw mounting portions 1b (see fig. 3) provided at 8 positions on the flange 1 a.

Fig. 11 is a perspective view of the dust removing filter 23 in embodiment 1. As shown in fig. 3 and 7, the dust removing filter 23 is provided so as to cover the access port 27a of the main body 1. A fixing portion 4a and a claw hook portion 4b for fixing the dust removing filter 23 are formed in the fan housing 4. The fixing portion 23a and the claw portion 23b of the dust removing filter 23 are fixed and fitted to the fixing portion 4a and the claw hook portion 4b, respectively, to fix the dust removing filter 23 to the fan case 4. The dust removal filter 23 is formed with a grip portion 23c that can be gripped during attachment and detachment.

Fig. 12 and 13 are perspective views of the discharge cell 5 in embodiment 1. Fig. 14 is a perspective view of the counter electrode 17 in embodiment 1. Fig. 15 is a sectional view of the discharge cell 5 in embodiment 1. Fig. 16 is a perspective view of the discharge electrode 16 in embodiment 1. Fig. 17, 18, and 19 are perspective views of discharge portion lower cover 15 in embodiment 1. Fig. 20 is a perspective view showing the discharge unit 5 after the deodorizing filter 12 in embodiment 1 is removed. Fig. 21 is a perspective view showing the discharge unit 5 after the deodorizing filter cover 21 in embodiment 1 is removed. Fig. 22 is a cross-sectional view of the discharge cell 5 in embodiment 1, and shows a grounding structure of the deodorizing filter 12 and the counter electrode 17. Fig. 23 is a perspective view showing a method of removing the deodorizing filter cover 21 of the discharge unit 5 in embodiment 1. Fig. 24 is a sectional view for explaining the discharge cell 5 of the fixing structure at the portion a shown in fig. 12. Fig. 25 is a partially enlarged view of a portion B shown in fig. 12. Fig. 26 is a partially enlarged cross-sectional view of embodiment 1, in which the connection portion between discharge cell 5 and discharge cell terminal block 22 is enlarged. Fig. 27 and 28 are perspective views of the air conditioner of embodiment 1 as viewed from the bottom, and are views showing a state in which the decorative grill 6 and the discharge unit 5 are removed. Fig. 29 is a diagram schematically showing the flow of air in the discharge cell 5.

The discharge unit 5 is provided downstream of the sirocco fan 2 in the flow path formed inside the main body 1. More specifically, as shown in fig. 1 and 3, the discharge port 27b is provided in the main body 1. The discharge unit 5 has a deodorizing filter 12, and collects dust and deodorizes air blown out of the air conditioning apparatus by electrostatic collection through the discharge unit 5.

As shown in fig. 12, 13, and 19, the discharge cell 5 includes a discharge portion 13, and the discharge portion 13 includes a discharge portion lower cover 15 as a 1 st frame, a discharge portion upper cover 14 as a 2 nd frame, a discharge electrode 16, a counter electrode 17, a discharge electrode insertion right member 18, a discharge electrode insertion left member 19, a spring 20, and a metal terminal 35. The discharge unit 5 includes a deodorizing filter 12 and a deodorizing filter cover 21 as a 3 rd frame.

The discharge electrode 16 is made of, for example, a conductor such as tungsten, and has a linear cross-sectional shape of a circle or a rectangle with rounded corners and sufficient strength. The material of the counter electrode 17 may be, for example, a metal such as stainless steel, carbon, or the like, and the resistance value may be reduced to 10⁴A conductive resin of approximately Ω/cm, or a resin coated with a metal. The discharge electrode 16 and the counter electrode 17 are preferably made of a material that is resistant to water rust so as to be washable.

When a metal plate-like member is used as the counter electrode 17, it is preferable to manufacture the counter electrode by cutting and bending the plate-like member so that a plurality of plate-like electrodes are arranged in parallel as shown in fig. 14.

As shown in fig. 15, the discharge portion 13 has a structure in which the discharge electrodes 16 and the counter electrodes 17 are arranged in parallel and the discharge electrodes 16 and the counter electrodes 17 are alternately arranged.

As shown in fig. 17 and 18, the discharge electrode 16 is hooked on and wound back around the discharge electrode hooking portion 15a provided on the discharge portion lower cover 15 made of an insulating material, and hooked and fixed to the metal terminal 35 provided on the discharge portion lower cover 15 in a state where tension is applied to both ends of the discharge electrode 16 by the spring 20, thereby preventing looseness. The discharge portion lower cover 15 is formed with a lower cover opening 15b as a 1 st opening through which air passes.

In order to insulate the discharge electrode 16 and the counter electrode 17 arranged as described above, the right discharge electrode insertion member 18 and the left discharge electrode insertion member 19 made of an insulating material are arranged on the lower discharge portion cover 15 as shown in fig. 19, the counter electrode 17 is arranged thereon, and the upper discharge portion cover 14 made of an insulating material is coupled thereto as shown in fig. 20. The discharge portion upper cover 14 is formed with an upper cover opening 14d as a 2 nd opening through which air passes. Further, the upper cover 14 of the discharge part is formed with a through opening 14e, and the through opening 14e is used for penetrating the deodorizing filter contact part 17a of the counter electrode 17. The deodorizing filter contact portion 17a may penetrate through the upper cover opening 14 d.

As shown in fig. 21, the deodorizing filter 12 is provided on the discharging section upper cover 14, and is fixed by a deodorizing filter cover 21 as a 3 rd frame as shown in fig. 13. In addition, the deodorizing filter cover 21 is formed with a filter cover opening 21d as the 3 rd opening through which air passes. As shown in fig. 22, the deodorizing filter contact portion 17a formed on the counter electrode 17 constituting the charging portion penetrates the through opening 14e formed in the discharging portion upper cover 14 and protrudes toward the deodorizing filter cover 21 side, thereby contacting the deodorizing filter 12 constituting the dust collecting portion. Thereby, the deodorizing filter 12 has the same potential (GND side) as the counter electrode 17. According to this configuration, even the deodorizing filter 12 can effectively capture the fine particles charged by the discharging unit 13. Further, by combining the frames, the deodorizing filter contact portion 17a contacts the deodorizing filter 12 inside the discharge cell 5, so that the number of components can be reduced and the manufacturing cost can be reduced as compared with the case of electrical contact outside the discharge cell 5.

The deodorizing filter 12 uses an aluminum alloy or ceramic having many openings on a base material, and is covered with a catalyst having conductivity, such as manganese dioxide, on the surface.

As shown in fig. 23, 24 and 25, the deodorizing filter cover 21 has a structure in which the claws 21a are claw-fitted to the claws 14a of the discharge portion upper cover 14 and the fixing

portions

21b and 21c of the deodorizing filter cover 21 are fixed by sliding to the fixing

portions

14b and 14c of the discharge portion upper cover 14, respectively, and is easily attached and detached. By forming the base material of the deodorizing filter 12 of aluminum alloy or ceramic in this manner, the deodorizing filter 12 can be washed with water, and the deodorizing filter 12 can be easily removed by attaching and detaching the base material, thereby washing off odor components and particulates adhering to the deodorizing filter 12.

As shown in fig. 26, the

power supply terminals

5a and 5b protrude from the discharge cell 5, the power supply terminal 5a is an integral member continuous from the metal terminal 35, and the power supply terminal 5b is an integral member continuous from the counter electrode 17.

The

power supply terminals

5a, 5b contact the power supply terminal 22a of the discharge cell terminal block 22, and supply power to the discharge cell 5. The power supply terminal 22a is connected to a high-voltage power supply. Further, since the power supply terminal 22a needs to have a structure in contact with the

power supply terminals

5a and 5b, the elastic material and the shape are configured so that the

power supply terminals

5a and 5b are less likely to be in non-contact with the power supply terminal 22a due to member variation or insertion variation when combined with the discharge cell 5.

As shown in fig. 27 and 28, the fixing portion 5c (see also fig. 13) of the discharge cell 5 is hooked to the high-voltage cell fixing portion 1c of the main body 1, and the hook claw 5e (see also fig. 12) of the discharge cell 5 is fitted to the hook portion 22b of the discharge cell terminal block 22, thereby fixing the discharge cell to a product. The discharge cell 5 has a grip portion 5d (see also fig. 12) for attachment and detachment, and is configured to be easily attachable and detachable by being pulled out and inserted.

Such a discharge unit 5 is attached to the main body 1 of the air conditioner, and when the sirocco fan 2 is operated, the air flow passing through the main body 1 passes through the inside of the discharge unit 5. More specifically, the air is taken into the discharge cell 5 through the lower cover opening 15b formed in the discharge portion lower cover 15, passes through the upper cover opening 14d formed in the discharge portion upper cover 14, and is discharged to the outside of the discharge cell 5 through the filter cover opening 21d formed in the deodorizing filter cover 21.

As shown in fig. 29, the air flow passing through the inside of the discharge cell 5 passes through the deodorizing filter 12 after passing between the discharge electrode 16 and the counter electrode 17. A high voltage is applied between the discharge electrode 16 (positive electrode side) and the counter electrode 17(GND side), and a discharge/electric field space is generated. Bacteria, mold, viruses, and the like contained in the air flow generated by the operation of the sirocco fan 2 are removed and inactivated in the electric discharge and electric field space. In the discharge and electric field space, the fine particles are charged and electrically trapped by the counter electrode 17 and the deodorizing filter 12 due to coulomb force.

The configuration described in the above embodiment is an example of the content of the present invention, and may be combined with other known techniques, and a part of the configuration may be omitted or modified within a range not departing from the gist of the present invention.

Description of the reference numerals

1: a main body; 1 a: a flange; 1 b: a set screw mounting portion; 1 c: a high voltage unit fixing part; 1 d: a bearing portion; 1 e: a claw; 1 f: a flange rib; 2: a sirocco fan (blower); 3: a fan; 4: a fan housing; 4 a: a fixed part; 4 b: a claw hook portion; 4 c: a housing rib; 5: a discharge unit; 5a, 5 b: a power supply terminal; 5 c: a fixed part; 5 d: a grip portion; 5 e: hooking claws; 6: decorating the grating; 6 a: a shaft; 6 b: a claw; 6 c: a grid rib; 6 d: a protrusion; 7: a motor; 8: a terminal block; 9: a circuit storage case; 10: a control circuit; 12: a deodorizing filter; 13: a discharge section; 14: a discharge part upper cover (No. 2 frame); 14 a: a claw; 14b, 14 c: a fixed part; 14 d: an upper cover opening (2 nd opening); 14 e: a through opening; 15: a discharge part lower cover (No. 1 frame); 15 a: a discharge electrode hooking part; 15 b: a lower cover opening (1 st opening); 16: a discharge electrode; 17: a counter electrode; 17 a: a deodorizing filter contact portion; 18: the right component is hooked on the discharge electrode; 19: the left component is hooked on the discharge electrode; 20: a spring; 21: a deodorizing filter cover (3 rd frame); 21 a: a claw; 21b, 21 c: a fixed part; 21 d: a filter cover opening (3 rd opening); 22: a discharge unit terminal block; 22 a: a power supply terminal; 22 b: a hook portion; 23: a dust removal filter; 23 a: a fixed part; 23 b: a claw portion; 23 c: a grip portion; 26: a ceiling; 27: an opening; 27 a: an inlet is taken; 27 b: an outlet port; 28: opposite surfaces; 29: an outer side surface; 30: a rib; 31: region 1; 32: a 2 nd region; 33: a separating surface; 34: an inclined surface; 35: and a metal terminal.

Claims

1. A discharge cell, comprising:

a 1 st frame formed with a 1 st opening through which air passes;

a 2 nd frame formed with a 2 nd opening for passing air therethrough;

a 3 rd frame formed with a 3 rd opening through which air passes;

a discharge electrode disposed between the 1 st frame and the 2 nd frame;

a counter electrode disposed between the 1 st frame and the 2 nd frame; and

a deodorizing filter disposed between the 2 nd frame and the 3 rd frame and having a surface covered with a catalyst having conductivity,

a deodorizing filter contact portion protruding from the 2 nd frame to the 3 rd frame side and contacting the deodorizing filter is formed on the counter electrode,

a penetrating opening through which the deodorizing filter contact portion penetrates is formed in the 2 nd frame,

by combining the 1 st frame, the 2 nd frame, and the 3 rd frame, the deodorizing filter is brought into contact with the counter electrode via the deodorizing filter contact portion and has the same potential.

2. The discharge cell of claim 1,

the counter electrode has a plurality of flat plate-like electrodes arranged in parallel.

3. The discharge cell of claim 1 or 2,

claws that are fitted to each other in a state where the 2 nd frame and the 3 rd frame are combined are formed on the 2 nd frame and the 3 rd frame,

the deodorizing filter can be attached and detached by sliding the 3 rd frame to release the engagement between the claws.

4. An air conditioning apparatus is characterized by comprising:

a main body in a shape of a box having an opening formed at one surface thereof;

a discharge unit according to any one of claims 1 to 3 housed in the case; and

and a blower housed in the case and generating an air flow from the 1 st opening to the 3 rd opening.