Ion generating device, air conditioner indoor unit and air conditioner

Abstract

The utility model provides an ion generating device, an air conditioner indoor unit and an air conditioner. The ion generating device includes: a base; the driving power supply module is arranged on the base body; the active particle generation module is arranged on the base body and electrically connected with the driving power supply module, the driving power supply module is arranged to supply power to the active particle generation module, and the active particle generation module is arranged to generate active particles. The ion generating device is applied to the air conditioner indoor unit, the air conditioner indoor unit only needs to independently arrange a space for installing the ion generating device in a heat exchange air duct of the air duct machine, and does not need to independently arrange a space for installing a high-voltage pack in an electric control area of the air duct machine, so that the design difficulty of the air conditioner indoor unit is lower, and the manufacturing difficulty is lower.

Description

Technical Field

[0001] This utility model relates to the field of heat pump equipment technology, and more specifically, to an ion generating device, an indoor air conditioning unit, and an air conditioner. Background Technology

[0002] An ion generator is installed inside a ducted air conditioner and electrically connected to a high-voltage transformer within the air conditioner. The ducted air conditioner supplies power to the ion generator via its internal high-voltage transformer, causing the ion generator to produce active particles. This design requires not only a separate space within the heat exchange duct of the ducted air conditioner to install the ion generator, but also a separate space within the electrical control area of ​​the ducted air conditioner to install the high-voltage transformer, which increases the manufacturing complexity of the ducted air conditioner. Utility Model Content

[0003] This utility model provides an ion generating device, including: a substrate; a driving power module disposed on the substrate; and an active particle generating module disposed on the substrate and electrically connected to the driving power module, wherein the driving power module is configured to supply power to the active particle generating module, and the active particle generating module is configured to generate active particles.

[0004] In some exemplary embodiments, the active particle generation module includes: a diffusion active particle generation module disposed on the substrate and electrically connected to the driving power module, the driving power module being configured to supply power to the diffusion active particle generation module, and the diffusion active particle generation module being configured to generate diffusion active particles.

[0005] In some exemplary embodiments, the active particle generation module includes: a jet active particle generation module disposed on the substrate and electrically connected to the driving power module, the driving power module being further configured to supply power to the jet active particle generation module, and the jet active particle generation module being configured to generate jet active particles.

[0006] In some exemplary embodiments, the diffusion-active particle generation module includes: a carbon brush having a mounting body and a discharge head, the mounting body being disposed on the substrate, the driving power module being configured to supply negative high voltage to the discharge head, the discharge head being configured to generate electrons through corona discharge, and the diffusion-active particles including biomimetic ions formed by electrons and hydrophilic species in the air.

[0007] In some exemplary embodiments, the substrate has a first mounting cavity inside, the cavity wall of the first mounting cavity has a through hole, the mounting body is disposed in the first mounting cavity, and the discharge head extends out of the first mounting cavity from the through hole.

[0008] In some exemplary embodiments, the jet active particle generation module includes a discharge tip and a metal orifice plate. The driving power module is configured to generate an electric field between the discharge tip and the metal orifice plate by supplying power to the discharge tip and the metal orifice plate. The discharge tip generates active particles through tip discharge, and the active particles form jet active particles that move toward the metal orifice plate under the action of the electric field.

[0009] In some exemplary embodiments, the substrate is provided with an air passage, and the discharge tip and the metal perforated plate are arranged at intervals opposite each other in the air passage; wherein, the discharge tip is near the inlet of the air passage, the metal perforated plate is near the outlet of the air passage, and an insulating protective mesh cover is provided at the outlet of the air passage.

[0010] In some exemplary embodiments, based on the active particle generation module including the diffusion active particle generation module and the jet active particle generation module, then: the diffusion active particle generation module includes two modules, the jet active particle generation module is located between the two diffusion active particle generation modules, and the driving power supply module is located outside the two diffusion active particle generation modules.

[0011] In some exemplary embodiments, the substrate includes a bottom shell and a cover body that are connected separately. The cover body includes a first part and a second part. The second part protrudes away from the bottom shell relative to the first part and together with the bottom shell to form a second mounting cavity. The driving power module includes a high-voltage pack, which is disposed in the second mounting cavity. The active particle generation module is disposed in the area enclosed by the first part and the bottom shell.

[0012] This utility model embodiment also provides an air conditioner indoor unit, including the ion generating device described in any of the above embodiments.

[0013] In some exemplary embodiments, the indoor unit of the air conditioner further includes: a housing having a heat exchange duct, the air outlet of the heat exchange duct being located on the front end wall of the housing; a heat exchanger and a heating device disposed within the heat exchange duct, wherein the heating device and the ion generating device are located between the heat exchanger and the air outlet.

[0014] In some exemplary embodiments, the distance between the active particle generation module and the heat exchanger is not less than 30 mm.

[0015] In some exemplary embodiments, the distance between the active particle generating module and the wall of the air outlet is not less than 30 mm.

[0016] In some exemplary embodiments, the distance between the active particle generation module and the heating device is not less than 30 mm.

[0017] In some exemplary embodiments, the distance between the active particle generation module and the peripheral wall of the heat exchange duct is not less than 30 mm.

[0018] In some exemplary embodiments, the inlet of the air passage of the substrate faces the heat exchanger, and the outlet faces the air outlet.

[0019] In some exemplary embodiments, the discharge head of the active particle generation module is oriented toward the air outlet and extends downward and forward, and the angle between the axis of the discharge head and the vertical direction is 20 degrees to 50 degrees.

[0020] This utility model embodiment also provides an air conditioner, including the indoor unit of the air conditioner described in any of the above embodiments.

[0021] The technical solution provided by this utility model embodiment is that the ion generating device is applied to the indoor unit of an air conditioner. The indoor unit of the air conditioner only needs to set up a separate space for installing the ion generating device in the heat exchange duct of the air duct unit, and no longer needs to set up a separate space for installing the high voltage transformer in the electrical control area of ​​the air duct unit. This makes the design and manufacturing of the indoor unit of the air conditioner easier.

[0022] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solution of this utility model and do not constitute a limitation on the technical solution of this utility model.

[0024] Figure 1 This is a schematic diagram of the structure of the ion generator after it is assembled with the side plate according to some embodiments of the present invention;

[0025] Figure 2 for Figure 1 A schematic diagram of the exploded structure of the ion generator;

[0026] Figure 3 This is a schematic diagram of the structure of the ion generating device after assembly with the same side plate according to other embodiments of this utility model;

[0027] Figure 4 for Figure 3 A schematic diagram of the exploded structure of the ion generator;

[0028] Figure 5This is a schematic diagram of the structure of an air conditioner indoor unit provided in some embodiments of this utility model;

[0029] Figure 6 for Figure 5 A partial cross-sectional view of the left side of the indoor unit of the air conditioner shown.

[0030] Figure 7 for Figure 5 A partial schematic diagram of the right-side structure of the indoor unit of the air conditioner shown;

[0031] Figure 8 for Figure 5 The diagram shows a cross-sectional view of the left side of the indoor unit of the air conditioner.

[0032] The correspondence between the reference numerals and the component names is as follows:

[0033] 10 Ion generator, 100 Substrate, 110 Bottom shell, 120 Cover, 121 Through hole, 122 First part, 123 Second part, 130 Air passage, 140 Insulating protective mesh cover, 141 Circumvention hole, 300 Diffusion active particle generation module, 310 Mounting body, 320 Discharge head, 400 Jet active particle generation module, 410 Discharge tip, 420 Metal perforated plate, 500 Heat exchanger, 600 Heating device, 700 Shell, 710 Heat exchange air duct, 711 Air outlet, 720 Side plate. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

[0035] The ion generating device provided in this embodiment of the utility model, such as Figures 1 to 4 As shown, it includes: a substrate 100; a driving power module disposed on the substrate 100; and an active particle generation module disposed on the substrate 100 and electrically connected to the driving power module, the driving power module being configured to supply power to the active particle generation module, and the active particle generation module being configured to generate active particles.

[0036] This ion generator is applied to the indoor unit of an air conditioner. The indoor unit only needs to have a separate space for installing the ion generator in the heat exchange duct of the air conditioner. It no longer needs to have a separate space for installing the high-voltage transformer in the electrical control area of ​​the air conditioner. This makes the design and manufacturing of the indoor unit of the air conditioner easier.

[0037] In some examples, such as Figure 1 and Figure 2As shown, the active particle generation module includes a diffusion active particle generation module 300, which is disposed on the substrate 100 and electrically connected to the driving power module. The driving power module is configured to supply power to the diffusion active particle generation module 300, which is configured to generate diffusion active particles. The diffusion active particles can actively capture and knock down dust in the air, and can also actively capture and kill bacteria and viruses in the air.

[0038] In some embodiments, such as Figure 1 and Figure 2 As shown, the diffusion-active particle generation module 300 includes: a carbon brush having a mounting body 310 and a discharge head 320. The mounting body 310 is disposed on the substrate 100. The driving power module is configured to supply negative high voltage to the discharge head 320. The discharge head 320 is configured to generate electrons through corona discharge. The diffusion-active particles include biomimetic ions formed by electrons and hydrophilic species in the air (electrons are captured by hydrophilic species in the air to form biomimetic ions).

[0039] The carbon fiber of the discharge head 320 is loaded with a negative high voltage, such as a DC negative high voltage. The discharge head 320 generates a large number of electrons through corona discharge. The electrons are captured by electrophilic species in the air, such as oxygen molecules (O2) or water molecules (H2O), forming biomimetic ions (i.e. Be ions, Be is an abbreviation for Biomimetic Electronics). The biomimetic ions diffuse into the air, actively capturing and knocking down dust in the air, and actively capturing and killing bacteria and viruses in the air.

[0040] Biomimetic ions (i.e., Be ions) diffuse into the air, bind to bacteria, and attack the C=O bonds in the cell wall, gradually destroying the cell wall. They then penetrate the cell wall and further attack the P=O bonds of phospholipid molecules in the cell membrane, leading to the disintegration and death of the entire cell structure.

[0041] In some embodiments, such as Figure 1 and Figure 2 As shown, the substrate 100 has a first mounting cavity inside, and the cavity wall of the first mounting cavity has a through hole 121. The mounting body 310 is located in the first mounting cavity, and the discharge head 320 extends out of the first mounting cavity through the through hole 121. Electrons are generated outside the first mounting cavity through corona discharge. In this way, more electrons can combine with hydrophilic species to generate more biomimetic ions. This ion generator has a better air purification effect.

[0042] In some examples, such as Figure 3 and Figure 4As shown, the active particle generation module includes: a jet active particle generation module 400, which is disposed on the substrate 100 and electrically connected to the driving power module. The driving power module is also configured to supply power to the jet active particle generation module 400. The jet active particle generation module 400 is configured to generate jet active particles, which have a good killing effect on bacteria and viruses in the air.

[0043] The active particles in the jet include a large number of electrons (e - ), reactive oxygen species (ROS) S like 1 O2、O·、O2 - ), reactive nitrogen species (RN) S such as N2 + ONOO - High-energy particles such as free radicals (·OH) have a good killing effect on bacteria and viruses in the air.

[0044] The active particles in the jet possess the effects of oxidation, etching, and electrostatic interference from charged particles:

[0045] Oxidation and etching: Reactive oxygen species, reactive nitrogen species, free radicals and other active substances form a "slow burning" etching on the cell surface, causing the destruction of chemical bonds such as C=O and CN, resulting in voids in the cell wall and cell membrane barrier structure; the defects or holes formed by etching can then promote the entry of active particles into the cell, where they react with internal RNA, DNA and proteins to undergo oxidation reactions, thereby leading to cell inactivation.

[0046] Electrostatic interference: Charged particles flowing through the cell membrane generate transmembrane potential, altering the permeability of the cell membrane, causing cytoplasm to leak out of the cell and leading to cell death; or charged particles accumulate on the cell surface, generating electrostatic stress exceeding the tensile strength of the cell membrane, causing local deformation or even rupture of the cell membrane.

[0047] In some embodiments, such as Figure 3 and Figure 4 As shown, the jet active particle generation module 400 includes: a discharge tip 410 and a metal orifice plate 420. The driving power module is configured to supply power to the discharge tip 410 and the metal orifice plate 420 to form a strong electric field between the discharge tip 410 and the metal orifice plate 420. The discharge tip 410 generates active particles through tip discharge. Under the action of the strong electric field, the active particles form a jet active particle that moves from the discharge tip 410 to the metal orifice plate 420.

[0048] Among them, such as Figure 4As shown, the discharge tip 410 has a serrated tip, and the holes in the metal orifice plate 420 correspond one-to-one with the tips of the serrated tips. Under the action of voltage and strong electric field, a three-dimensional high-energy particle jet region is formed between the discharge tip 410 and the metal orifice plate 420. A large number of jet active particles are formed in the high-energy particle jet region, and the jet active particles move from the discharge tip 410 to the metal orifice plate 420.

[0049] In some examples, such as Figure 4 As shown, the substrate 100 is provided with an air passage 130, and the discharge tip 410 and the metal perforated plate 420 are arranged at intervals opposite each other within the air passage 130. The discharge tip 410 is near the inlet of the air passage 130, and the metal perforated plate 420 is near the outlet of the air passage 130. An insulating protective mesh cover 140 is provided at the outlet of the air passage 130. The insulating protective mesh cover 140 not only provides protection but also prevents charged particles from adsorbing and adhering. For example... Figure 3 and Figure 4 As shown, the insulating protective mesh cover 140 is provided with a clearance hole 141, which is opposite to the outlet of the air passage 130 and is used to avoid jet active particles.

[0050] In some examples, such as Figure 3 and Figure 4 As shown, the active particle generation module includes both a diffusion active particle generation module 300 and a jet active particle generation module 400. The fusion of the biomimetic ions generated by the diffusion active particle generation module 300 and the jet active particles generated by the jet active particle generation module 400 produces more high-energy electrons, which in turn generate more free radicals and high-energy particles. The combined effect of these two components expands the range of sterilization and virucidal activity, increases the rate and effectiveness of sterilization and virucidal activity, and reduces the dosage required for sterilization and virucidal activity. Therefore, this method achieves higher efficiency in killing bacteria and viruses.

[0051] In some embodiments, such as Figure 3 and Figure 4 As shown, the diffusion active particle generation module 300 includes two modules, the jet active particle generation module 400 is located between the two diffusion active particle generation modules 300, and the driving power module is located outside the two diffusion active particle generation modules 300. After the fusion of biomimetic ions and jet active particles, this scheme generates more high-energy electrons, resulting in higher efficiency in killing bacteria and viruses.

[0052] In some embodiments, such as Figure 4As shown, the substrate 100 includes a bottom shell 110 and a cover 120 that are connected separately. The cover 120 includes a first part 122 and a second part 123. The second part 123 protrudes away from the bottom shell 110 relative to the first part 122. The second part 123 and the bottom shell 110 together form a second mounting cavity. The drive power module includes a high voltage transformer, which is located in the second mounting cavity. The first part 122 and the bottom shell 110 together form an air passage 130 and two first mounting cavities. The air passage 130 is located between the two first mounting cavities. The second mounting cavity is located outside the two first mounting cavities. Two diffusion active particle generation modules 300 are correspondingly located in the two first mounting cavities. A jet active particle generation module 400 is located in the air passage 130.

[0053] The air conditioner indoor unit provided in this embodiment of the utility model, such as Figures 5 to 8 As shown, it includes the ion generating device 10 described in any of the above embodiments.

[0054] This air conditioner indoor unit possesses all the advantages of the ion generating device provided in any of the above embodiments, which will not be elaborated here.

[0055] In some examples, such as Figures 5 to 8 As shown, the indoor unit of the air conditioner also includes: a housing 700 having a heat exchange duct 710, the air outlet 711 of the heat exchange duct 710 being located on the front end wall of the housing 700; a heat exchanger 500 and a heating device 600, both of which are located within the heat exchange duct 710, and the heating device 600 and the ion generator 10 being located between the heat exchanger 500 and the air outlet 711, with the heating device 600 and the ion generator being spaced apart in the width direction of the air outlet 711.

[0056] Among them, such as Figures 5 to 8 As shown, the inlet of the air passage 130 faces the heat exchanger 500, the outlet faces the air outlet 711, the discharge head 320 faces the air outlet 711 and extends forward and downward. After the air jet in the heat exchange air passage 710 passes through the heat exchanger 500, a portion of it will be blown along the air passage 130 to the air outlet 711. This portion of air will generate a large number of jet active particles under the action of the jet active particle generation module 400.

[0057] In some embodiments: such as Figure 6 As shown, the minimum distance between the active particle generation module and the heat exchanger 500 is not less than 30mm, and A is 30mm to 50mm; Figure 6 As shown, the minimum distance between the active particle generation module and the wall of the air outlet 711 is not less than 30mm, and B is 30mm to 50mm; Figure 6 As shown, the minimum distance between the active particle generation module and the heating device 600 is not less than 30mm, and C is 30mm to 50mm; Figure 7 As shown, the high-pressure unit portion of the housing 100 is fixed to the peripheral wall of the heat exchange duct 710 (i.e., fixed to the side plate 720). The minimum distance between the active particle generating module and the portion of the housing 100 on the peripheral wall of the heat exchange duct 710 is not less than 30mm, and D is 30mm to 250mm. With this design, when the air conditioner's indoor unit is running, the biomimetic ions and jet active particles are less likely to adhere to the heat exchange duct 710 and its internal metal parts, and will be blown out more from the air outlet 711 through the air passage 130. This results in better indoor air purification (dust removal, sterilization, and virus removal).

[0058] like Figure 8 As shown, when the air conditioner's indoor unit fan is stopped, the diffusion area 'a' of biomimetic ions and jet active particles is located inside the outlet wall. When the fan operates at low and high speeds, the diffusion area of ​​biomimetic ions and jet active particles will bend to some extent. To ensure efficient transport and release of biomimetic ions and jet active particles into the indoor space and reduce the capture of these particles by indoor objects (such as the ceiling), the angle between the axis of the discharge head 320 and the vertical direction is set to 20 to 50 degrees. Thus: Figure 8 As shown, when the fan operates at low wind speed, the diffusion region of biomimetic ions and jet active particles is b; Figure 8 As shown, when the fan is operating at high wind speed, the diffusion area of ​​biomimetic ions and jet active particles is c.

[0059] Thus, the indoor air purification rate of the air conditioner unit provided in this application can reach 99% in 2 hours.

[0060] The air conditioner provided in this embodiment of the present invention (not shown in the figure) includes the indoor unit of the air conditioner described in any of the above embodiments.

[0061] This air conditioner possesses all the advantages of the indoor unit provided in any of the above embodiments, which will not be elaborated further here.

[0062] In summary, the technical solution provided by this utility model embodiment allows the ion generator to be applied to the indoor unit of an air conditioner. The indoor unit only needs to have a separate space for installing the ion generator in the heat exchange duct of the air conditioner, and no longer needs to have a separate space for installing the high-voltage transformer in the electrical control area of ​​the air conditioner. This makes the design and manufacturing of the indoor unit of the air conditioner easier.

[0063] In the description of this utility model, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "'mouth' structure", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, or is constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0064] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "connection," "direct connection," "indirect connection," "fixed connection," "installation," and "assembly" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. The terms "installation," "connection," and "fixed connection" can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal communication between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0065] Although the embodiments disclosed in this utility model are as described above, the content described is only for the purpose of facilitating understanding of this utility model and is not intended to limit this utility model. Any person skilled in the art to which this utility model pertains may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in this utility model, but the patent protection scope of this utility model shall still be defined by the appended claims.

Claims

1. An ion generating device, characterized in that, include: Matrix; The drive power module is located on the substrate; and An active particle generation module is disposed on the substrate and electrically connected to the driving power module. The driving power module is configured to supply power to the active particle generation module, and the active particle generation module is configured to generate active particles. The active particle generation module includes a diffusion active particle generation module and a jet active particle generation module. The diffusion active particle generation module is configured to generate diffusion active particles, which include biomimetic ions formed by electrons and hydrophilic species in the air. The jet active particle generation module is configured to generate jet active particles. The biomimetic ions generated by the diffusion active particle generation module and the jet active particles generated by the jet active particle generation module are fused to generate more high-energy electrons.

2. The ion generating device according to claim 1, characterized in that, The diffusion-active particle generation module is disposed on the substrate and electrically connected to the driving power module, and the driving power module is configured to supply power to the diffusion-active particle generation module. The jet active particle generation module is disposed on the substrate and electrically connected to the driving power module. The driving power module is also configured to supply power to the jet active particle generation module.

3. The ion generating device according to claim 2, characterized in that, The diffusion-active particle generation module includes: A carbon brush having a mounting body and a discharge head, wherein the mounting body is disposed on the substrate, the drive power module is configured to supply negative high voltage to the discharge head, and the discharge head is configured to generate electrons through corona discharge.

4. The ion generating device according to claim 3, characterized in that, The substrate has a first mounting cavity inside, and the cavity wall of the first mounting cavity has a through hole. The mounting body is located in the first mounting cavity, and the discharge head extends out of the first mounting cavity from the through hole.

5. The ion generating device according to claim 2, characterized in that, The jet active particle generation module includes: The discharge tip and the metal orifice plate are configured such that the driving power module supplies power to the discharge tip and the metal orifice plate to create an electric field between the discharge tip and the metal orifice plate. The discharge tip generates active particles through tip discharge, and the active particles form a jet of active particles moving toward the metal orifice plate under the action of the electric field.

6. The ion generating apparatus according to claim 5, characterized in that, The substrate is provided with an air passage, and the discharge tip and the metal orifice plate are arranged at intervals opposite to each other in the air passage; The discharge tip is located near the inlet of the air passage, the metal perforated plate is located near the outlet of the air passage, and an insulating protective mesh cover is provided at the outlet of the air passage.

7. The ion generating apparatus according to claim 2, characterized in that, The diffusion active particle generation module includes two modules, with the jet active particle generation module located between the two diffusion active particle generation modules, and the driving power supply module located outside the two diffusion active particle generation modules.

8. The ion generating apparatus according to any one of claims 1 to 7, characterized in that, The substrate includes a bottom shell and a cover body that are connected separately. The cover body includes a first part and a second part. The second part protrudes away from the bottom shell relative to the first part and together with the bottom shell forms a second mounting cavity. The driving power module includes a high voltage transformer, which is disposed in the second mounting cavity. The active particle generation module is disposed in the area enclosed by the first part and the bottom shell.

9. An indoor unit for an air conditioner, characterized in that, Includes the ion generating apparatus as described in any one of claims 1 to 8.

10. The indoor unit of an air conditioner according to claim 9, characterized in that, Also includes: A housing with a heat exchange duct, wherein the air outlet of the heat exchange duct is located on the front end wall of the housing; A heat exchanger and a heating device are disposed within the heat exchange duct, and the heating device and the ion generating device are located between the heat exchanger and the air outlet; The discharge head of the active particle generation module faces the air outlet and extends downwards and forwards, and the angle between the axis of the discharge head and the vertical direction is 20 degrees to 50 degrees.

11. The indoor unit of an air conditioner according to claim 10, characterized in that: The inlet of the air passage of the substrate faces the heat exchanger, and the outlet faces the air outlet; The distance between the active particle generation module and the heat exchanger shall not be less than 30 mm; The distance between the active particle generation module and the wall of the air outlet is not less than 30mm; The distance between the active particle generation module and the heating device shall not be less than 30mm; The distance between the active particle generation module and the peripheral wall of the heat exchange duct is not less than 30 mm.

12. An air conditioner, characterized in that, Including the indoor unit of an air conditioner as described in any one of claims 9 to 11.

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