WO2017134720A1 - Air-conditioner - Google Patents

Air-conditioner Download PDF

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Publication number
WO2017134720A1
WO2017134720A1 PCT/JP2016/052876 JP2016052876W WO2017134720A1 WO 2017134720 A1 WO2017134720 A1 WO 2017134720A1 JP 2016052876 W JP2016052876 W JP 2016052876W WO 2017134720 A1 WO2017134720 A1 WO 2017134720A1
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WO
WIPO (PCT)
Prior art keywords
casing
fan
main body
air
bell mouth
Prior art date
Application number
PCT/JP2016/052876
Other languages
French (fr)
Japanese (ja)
Inventor
浩二 西岡
宏満 菊地
裕紀 西川
昭宏 若▲松▼
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=59500987&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2017134720(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2017564977A priority Critical patent/JP6611827B2/en
Priority to PCT/JP2016/052876 priority patent/WO2017134720A1/en
Publication of WO2017134720A1 publication Critical patent/WO2017134720A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station

Definitions

  • the present invention relates to an air conditioner including a fan casing that houses a fan.
  • Patent Document 1 Conventionally, an air conditioner including a fan that blows air exchanged in a heat exchanger into a conditioned room has been used (see, for example, Patent Document 1).
  • the air conditioner of Patent Document 1 sucks air into the fan casing from the air suction port of the housing by the rotation of the fan connected to the rotation shaft of the fan motor, and sends the air blown from the fan casing to the heat exchanger. It is configured as follows. And after the air sent to the heat exchanger exchanges heat with the heat medium flowing into the heat exchanger from the heat source machine, the room temperature is adjusted by blowing out from the air outlet of the housing.
  • an air conditioner has been proposed in which the fan casing can be divided into two divided bodies in order to facilitate the removal of the fan motor and the fan during maintenance (for example, see Patent Document 2).
  • the two divided bodies constituting the fan casing are attached by a claw-shaped locking portion.
  • the fan casing of Patent Document 2 is divided into two parts including a bell mouth part which is a curved surface part of an air suction part. For this reason, when a deviation occurs in the joint surface between the two divided bodies, even if the deviation is slight, the edge portion generated at the shifted end portion causes a wind noise.
  • An air conditioner includes a fan, a fan casing in which the fan is accommodated and an air inlet for supplying air and an air outlet for blowing out air supplied from the air inlet, and air flowing by the fan
  • a heat exchanger through which the air passes a fan casing in which an air blowing portion and a suction portion are formed, and a housing in which the fan is accommodated and a heat exchanger are provided inside, and the fan casing is attached to the housing.
  • a fan casing that accommodates a fan can be divided into a casing main body portion fixed to the casing, a casing division portion fixed to the casing main body portion, and a bell mouth portion that is an integrally molded product.
  • the bell mouth portion is disposed in a suction port formed by the casing main body portion and the casing dividing portion. For this reason, while improving a maintainability, the wind noise during the ventilation of a fan can be suppressed.
  • FIG. 1 is an external perspective view of an indoor unit of an air conditioner according to an embodiment of the present invention as viewed from the front.
  • FIG. 2 is an external perspective view of the indoor unit of the air conditioner of FIG. 1 as viewed from the back.
  • FIG. 3 is an internal perspective view of the indoor unit of the air conditioner of FIG. 1 as viewed from the front.
  • the positive x-axis direction is defined as the forward direction
  • the positive y-axis direction as the right direction
  • the positive z-axis direction as the upward direction.
  • the indoor unit 10 of the air conditioning apparatus in the present embodiment is disposed in a conditioned room, and is connected to a heat source unit (not shown) installed outdoors or the like via a pipe that circulates a heat medium. ing.
  • the indoor unit 10 circulates the heat medium exhausted or absorbed by the heat source unit, and performs air conditioning in the conditioned room.
  • the indoor unit 10 has a housing 11.
  • the housing 11 has a blowout part 12 that blows out air (conditioned air) at the top, has a front suction part 13 that sucks air into the front part, and has a rear suction part 14 that sucks air into the back part.
  • the housing 11 has a right side panel 24 and a left side panel 25. The right side panel 24 and the left side panel 25 are disposed symmetrically in the housing 11.
  • the indoor unit 10 includes a fan 7 that blows air, a motor 8 that drives the fan 7, a fan casing 1 that houses the fan 7, and a heat medium and air that flows from the heat source unit inside the housing 11. And a heat exchanger 30 for exchanging heat with each other.
  • the indoor unit 10 is installed, for example, on the floor surface of the conditioned room, and a blowing flange 15 arranged around the blowing unit 12 is connected to a blowing duct arranged on the ceiling of the conditioned room.
  • the indoor unit 10 drives the fan 7 to suck the air in the conditioned room from the front suction unit 13 and the rear suction unit 14, passes through the heat exchanger 30, and heat medium and air inside the heat exchanger 30. Are exchanged in heat, and supplied to the conditioned room again through the blowout part 12 and the blowout duct. That is, the indoor unit 10 performs air conditioning by circulating the air in the room to be conditioned.
  • the fan 7 is, for example, a centrifugal sirocco fan, and a plurality of blades 7a are arranged in a cylindrical shape. That is, the fan 7 sucks air into the inside from the side surface direction of the fan casing 1 and discharges the sucked air to the outside by the action of centrifugal force.
  • a double suction sirocco fan is employed as the fan 7.
  • a fan casing 1 is provided around the fan 7.
  • the fan casing 1 is fixed to a top panel 19 provided in the housing 11, a front frame 20, and a rear frame 21.
  • the fan casing 1 has a fixing member 1 f used when fixing to the front frame 20 and the rear frame 21.
  • the motor 8 is attached to a motor attachment plate 22, and the motor attachment plate 22 is attached to a motor base 23.
  • the front side of the motor mounting plate 22 is attached to the motor base 23 with screws, and the rear side of the motor mounting plate 22 is locked by pins (not shown). For this reason, the motor 8 can be removed together with the motor mounting plate 22 by removing the front screw and moving the motor mounting plate 22 to such an extent that the rear pin can be removed.
  • the heat exchanger 30 is composed of, for example, a fin-and-tube heat exchanger, and is disposed in the housing 11 at an angle. Such an arrangement is for securing an effective area and reducing the outer dimensions of the indoor unit 10, but at the same time, also serves as a partition plate for guiding air to always pass through the heat exchanger 30.
  • a drain receiver 16 is provided at the bottom of the heat exchanger 30.
  • the drain receiver 16 is inclined in the diagonally forward right direction to efficiently discharge condensed water, and an opening provided at an end portion is connected to an upper end portion of the drain water guiding portion 17.
  • the drain water guide part 17 has a tubular shape. This is to prevent the dew condensation water from being wound up by the air and mixed into the supplied air.
  • a lower end portion of the drain water guiding portion 17 is provided on the drain pan 18.
  • the drain pan 18 is inclined to the right, and a drain port 18a is provided at the end.
  • the dew condensation water generated by the heat exchange with the air in the heat exchanger 30 passes through the drain receiver 16, passes through the drain conduit 17 and the drain pan 18, and is discharged from the drain port 18 a.
  • the drain pan 18 in the present embodiment is made of a steel plate whose corrosion resistance is improved by painting.
  • the drain pan 18 may be formed using resin materials, such as a polystyrene foam, for example.
  • the drain pan 18 formed using the resin material needs to protect the surface that receives the dew condensation water with a resin sheet or the like that has been subjected to mold prevention treatment and waterproof treatment.
  • the inclination direction of the drain receiver 16 is not limited to the example of FIG. 3, and may be changed according to the positional relationship of the drain water guiding unit 17.
  • the drain receiver 16 may be inclined so as to be connected to the upper end portion of the drain water guide portion 17.
  • the inclination direction of the drain pan 18 is not limited to the example of FIG. 3, but may be changed according to the positional relationship of the drain port 18a.
  • the drain port 18a to be used is selected according to the direction of the drain pipe at the time of construction, and the drain pan is matched to the selected drain port 18a. It is good to change 18 inclinations.
  • field construction property will improve.
  • FIG. 4 is an external perspective view of the fan casing 1 provided in the indoor unit 10 of the air conditioner.
  • FIG. 5 is an exploded perspective view of the fan casing 1. With reference to FIG.4 and FIG.5, the structure of the fan casing 1 is demonstrated in detail. 4 and 5, the x-axis positive direction, the y-axis positive direction, and the z-axis positive direction are defined in the same manner as in FIGS.
  • the fan casing 1 has a casing main body 1a fixed to the casing 11, and a casing division 1b fixed to the casing main body 1a. That is, as described above, the fan casing 1 is fixed to the top panel 19, the front frame 20, and the rear frame 21 provided in the casing 11, but only the casing body 1 a is fixed to these. It is. In other words, the fan casing 1 has the casing body 1a fixed to the casing 11, and the casing division 1b is indirectly fixed to the casing 11 by being screwed to the casing body 1a.
  • the fan casing 1 is formed with an inlet 4 for supplying air and an outlet 2 for blowing out the air supplied from the inlet 4. More specifically, the blower outlet 2 which blows off air is provided in the upper part of the casing main-body part 1a. Moreover, as shown in FIG. 4, the fan casing 1 forms the suction inlet 4 with the casing main-body part 1a and the casing division
  • the fan casing 1 has two bell mouth portions 6 disposed in the suction port 4 formed by the casing main body portion 1a and the casing division portion 1b. More specifically, the suction port 4 is formed on one side surface and the other side surface of the casing main body portion 1a and the casing division portion 1b, respectively, and the two bell mouth portions 6 respectively include one side surface and the other side surface. It is arranged on the side.
  • the fan casing 1 has a casing main body portion at two locations, a first joint portion 3 in the vicinity of the air outlet 2 and a second joint portion 5 that is a lower portion of the suction port 4 when the air outlet 2 is located on the upper side. It has a structure that can be divided into 1a and casing dividing portion 1b. At the time of blowing, air is sucked into the fan 7 through the bell mouth portion 6 and the suction port 4 on the side surface of the fan casing 1, passes through the inner surface of the fan casing 1, and is blown out from the blower outlet 2.
  • a flange-like first main body bent portion 3a is provided at a portion corresponding to the first joint portion 3 of the casing main body portion 1a.
  • a flange-like first divided bent portion 3b is provided at a portion corresponding to the first joint portion 3 of the casing divided portion 1b.
  • segmentation bending part 3b are formed so that it may protrude from the outer periphery of the casing main body part 1a and the casing division
  • a flange-like second main body bent portion 5a is provided at a portion corresponding to the second joint portion 5 of the casing main body portion 1a.
  • a flange-like second divided bent portion 5b is provided at a portion corresponding to the second joint portion 5 of the casing divided portion 1b.
  • segmentation bending part 5b are formed so that it may protrude from the outer periphery of the casing main body part 1a and the casing division
  • the second main body bent portion 5a and the second divided bent portion 5b, to which the fixing member 1f is attached extend along an obliquely downward direction inclined forward.
  • Each of the first main body bent portion 3a and the first divided bent portion 3b has a plurality of screw holes 3h, and each of the second main body bent portion 5a and the second divided bent portion 5b has a plurality of screws. It has a hole 5h. That is, as shown in FIG. 4, the fan casing 1 has a structure in which the casing main body 1a and the casing division 1b can be fixed by the screws 3s and 5s.
  • the bell mouth portion 6 has a plurality of screw holes 6h as shown in FIG. 5, and is fixed to the casing main body portion 1a and the casing division portion 1b by screws 6s as shown in FIG. is there.
  • the bell mouth portion 6 is provided with an opening 6a in the center.
  • the bell mouth portion 6 includes at least a part of the inner diameter portion 6b fitted into the suction port 4 and the first joint portion 3 and the second joint portion 5 which are joint portions between the casing main body portion 1a and the casing division portion 1b. And a flat surface portion 6c for closing.
  • the bell mouth portion 6 is formed so that an edge facing the opening 6 a has an arc-shaped cross section toward the inside of the fan casing 1. That is, the surface on the opening 6a side of the inner diameter portion 6b is a curved surface, and the cross-sectional shape of the rotating surface centering on the axial direction of the opening 6a is an arc shape. That is, the curved surface on the opening 6a side of the inner diameter portion 6b has an arc shape in a cross section cut along, for example, the xy plane or the yz plane. Further, the inner diameter portion 6b and the plane portion 6c have an annular shape in cross section cut along the xz plane. That is, the planar portion 6c has an annular shape when viewed from the side. And the bellmouth part 6 is integrally molded and is not divided
  • the inner diameter portion 6 b of the bell mouth portion 6 is configured to fit into the suction port 4, and the opening diameter 6 d of the bell mouth portion 6 is smaller than the diameter of the suction port 4. Further, the opening diameter 6 d of the bell mouth portion 6 is smaller than the outer diameter of the fan 7 in order to increase the blowing efficiency.
  • the diameter of the suction port 4 is larger than the outer diameter of the fan 7. Therefore, for example, by removing at least one of the left side panel 25 and the right side panel 24, the fan 7 can be removed without removing the casing dividing portion 1b.
  • the vertical length of the joint surface in the first joint portion 3 is shorter than the vertical length of the joint surface in the second joint portion 5. Therefore, when the center of the suction port 4 corresponding to the center of the bell mouth portion 6 is “O”, the first virtual radius 4 a that is the distance between the center O and the outer peripheral surface of the first joint portion 3 is the center O. And the second virtual radius 4b, which is the distance between the outer peripheral surface of the second joint 5 and the second virtual radius 4b.
  • the vertical length of the joint surface and the first virtual radius 4a in the first joint portion 3 do not include the vertical lengths of the first main body bent portion 3a and the first divided bent portion 3b. Further, the length in the vertical direction of the joint surface and the second virtual radius 4b in the second joint 5 do not include the length in the vertical direction of the second main body bent portion 5a and the second divided bent portion 5b.
  • the length twice as large as the first virtual radius 4a corresponds to the outer diameter based on the first joint portion 3 which is one joint portion of the casing main body portion 1a and the casing split portion 1b.
  • the length twice the imaginary radius 4b corresponds to the outer diameter based on the second joint 5 which is the other joint of the casing body 1a and the casing split part 1b.
  • the shape of the flat surface portion 6c of the bell mouth portion 6 in the side view is not limited to an annular shape.
  • the virtual radius on the second joint portion 5 side of the bell mouth portion 6 is the first joint portion of the bell mouth portion 6. You may make it the arbitrary shape which becomes longer than the virtual radius of 3 side, and may cover the 1st junction part 3 and the 2nd junction part 5 altogether.
  • segmentation bending part 3b are being fixed by the fastening force of the screw 3s, and both the 2nd main body bending part 5a and the 2nd division
  • segmentation part 1b and corresponds to the 1st junction part 3 is vibrated beforehand. A gap is provided at a level where there is no contact.
  • the end surface of the casing main body 1a and the end surface of the casing dividing portion 1b do not come into uniform contact due to manufacturing tolerances. This is because contact sounds are generated. That is, the fan casing 1 is provided with a slight gap on the joint surface between the casing main body 1a and the casing dividing portion 1b so that the end surface of the casing main body 1a and the end surface of the casing dividing portion 1b do not come into contact with each other even during blowing. Therefore, it is possible to suppress the generation of abnormal sounds that are continuous contact sounds.
  • the bell mouth portion 6 which is an integrally molded product, is disposed on the side surface formed by the casing main body portion 1 a and the casing division portion 1 b, and the gap provided in the first joint portion 3 is The flat portion 6c of the bell mouth portion 6 is configured to be closed. For this reason, according to the fan casing 1, the wind leakage at the time of ventilation can be prevented. That is, the bell mouth portion 6 has a function of preventing wind leakage of the fan casing 1.
  • locking part 3c extended toward the direction of the 1st main body bending part 3a is provided in the edge part of the 1st division
  • segmentation part 1b has the insertion part 5c formed in the part which corresponds to the 2nd junction part 5 among the side surfaces so that it might overlap with the inner surface of the casing main-body part 1a. That is, the casing dividing portion 1b has an insertion portion 5c that extends toward the casing main body portion 1a and is in contact with the inner surface of the casing main body portion 1a at a portion corresponding to the second bonding portion 5 that is a joint portion with the casing main body portion 1a. is doing. For this reason, when the casing division
  • a step is formed on the side surface side, that is, the bell mouth portion 6 side, at the boundary portion between the joint surface and the insertion portion 5c below the casing division portion 1b. It is provided so as to protrude from the joint surface below the portion 1b. Therefore, when the casing main body 1a and the casing dividing portion 1b are joined, the joining portion below the casing main portion 1a fits into the step, and the joining surface below the casing dividing portion 1b and the side surface side of the insertion portion 5c. It abuts on the surface. Thereby, the side surface in the 2nd junction part 5 of the casing main-body part 1a and the casing division
  • the insertion part 5c may be provided in the casing main body 1a, in consideration of the air flow direction in the fan casing 1, it is more preferable to provide it on the casing division part 1b side. This is because the air in the fan casing 1 flows from the casing main body 1a toward the casing dividing portion 1b. Therefore, when the insertion portion 5c is provided in the casing main body 1a, the front end surface of the insertion portion 5c is resistant. This is a cause of noise generation. That is, since the fan casing 1 has the insertion part 5c in the casing division
  • the outer diameter 6e of the bell mouth portion 6 is shorter than twice the second virtual radius 4b.
  • the insertion portion 5c is provided in the casing division portion 1b. ing. Therefore, according to the fan casing 1, it is possible to prevent wind leakage from a portion of the joint surface between the casing body 1a and the casing dividing portion 1b that is not covered by the bell mouth portion 6, so Generation of sound can be suppressed.
  • the bell mouth portion 6 is provided in the suction port 4 as a separate component from the casing main body portion 1a and the casing division portion 1b. That is, the bell mouth portion 6 is integrally formed so that the edge thereof has an arc-shaped cross section toward the axial direction of the opening 6 a and the inside of the fan casing 1. And the bellmouth part 6 is comprised so that isolation
  • the fan casing 1 can be separated into a casing body 1a and a casing division 1b at the first joint 3 and the second joint 5. Only the casing body 1a is fixed to the front frame 20 and the rear frame 21. Further, the motor mounting plate 22 is structured such that the front side can be fixed to the motor base 23 by screwing and the rear side can be fixed by locking with a pin. For this reason, at the time of maintenance of the fan 7, after removing the screw 6s of the bell mouth part 6, the screw 3s for fixing the first main body bent part 3a and the first divided bent part 3b, and the second main body bent part If the screw 5s that fixes 5a and the second divided bent portion 5b is removed, only the casing divided portion 1b can be removed.
  • all of the fan casing 1 can be removed by simply removing the front screw and the rear pin for fixing the motor mounting plate 22 to the motor base 23 together with the screw 3s and the screw 5s.
  • the fan 7 and the motor 8 can be removed without removing them. That is, according to the fan casing 1, it is possible to improve the maintainability.
  • the gap corresponding to the first joint portion 3 on the side surface of the fan casing 1 is not provided by vibration, the end surface of the casing main body portion 1a and the end surface of the casing dividing portion 1b are not blown. Therefore, it is possible to suppress the generation of abnormal noise.
  • the fan casing 1 is comprised so that the bell mouth part 6 which is an integrally molded product may cover the clearance gap provided in the 1st junction part 3, it prevents the wind leak from the said clearance gap at the time of ventilation. Can do.
  • a portion corresponding to the second joint portion 5 of the casing dividing portion 1b is provided with an insertion portion 5c protruding so as to overlap the inner surface of the casing main body portion 1a.
  • the fan 7 is a double-suction sirocco fan, and the case where the two suction ports 4 are formed by the casing main body 1a and the casing division 1b is illustrated, but the present invention is not limited thereto. It is not something. That is, for example, a single-suction sirocco fan may be employed as the fan 7, and the suction port 4 may be formed only on one side surface by the casing body 1 a and the casing division 1 b. When such a configuration is adopted, the fan casing 1 only needs to have one bell mouth portion 6 disposed in one suction port 4.
  • a single-suction sirocco fan is adopted as the fan 7, and the inlet 4 is formed on one side by the casing body 1 a and the casing division 1 b, and an opening for connecting the motor 8 is provided on the other side.
  • the fan casing 1 may have one bell mouth portion 6 disposed in one suction port 4.
  • the outer diameter of the fan 7, and the opening diameter 6d of the bellmouth part 6 was illustrated, it is not restricted to this, for example, a bellmouth
  • the opening diameter 6 d of the part 6 may be larger than the outer diameter of the fan 7.
  • the diameter of the suction port 4 may be smaller than the outer diameter of the fan 7.
  • the indoor unit 10 has a ceiling part or a ceiling back part in a to-be-conditioned room. You may make it arrange
  • the upper direction and the lower direction are specified for convenience.
  • the present invention is not limited to this, and the fan casing 1 is arranged in the direction in which it is arranged according to the configuration of the indoor unit 10. Can be changed as appropriate.
  • the indoor unit 10 was provided with only one set of the fan casing 1, the bellmouth part 6, the fan 7, and the motor 8 which are the components regarding ventilation, it was limited to this. It is not something. That is, in the above-described embodiment, an example is shown in which only one blower configured with a set of components related to ventilation is arranged in the casing 11, but the indoor unit 10 includes a plurality of blowers. You may have. For example, the indoor unit 10 can obtain the same effect as described above even when a plurality of blowers are arranged side by side in the left-right direction in the housing 11.
  • the fan casing 1 may be provided in a heat source unit that functions as an outdoor unit, that is, the fan casing 1 may be applied as a fan casing that houses a fan in the heat source unit, for example.
  • the first main body bent portion 3a and the first divided bent portion 3b are parallel when the casing divided portion 1b is brought into contact with the casing main body portion 1a. As long as it is, it can project in any direction.
  • the second main body bent portion 5a and the second divided bent portion 5b have the second main body bent portion 5a and the second divided bent portion 5b when the casing divided portion 1b is brought into contact with the casing main body portion 1a.
  • the bent portion 5b is preferably protruded perpendicular to the outer periphery of the casing main body portion 1a and the casing dividing portion 1b.
  • 1 fan casing 1a casing main body, 1b casing divided portion, 1f fixing member, 2 outlet, 3 first joint, 3a first main body bent portion, 3b first divided bent portion, 3c locking portion, 3h, 5h 6h Screw hole, 3s, 5s, 6s screw, 4 suction port, 4a first virtual radius, 4b second virtual radius, 5 second joint, 5a second body folded part, 5b second divided folded part, 5c difference Insert part, 6 bell mouth part, 6a opening part, 6b inner diameter part, 6c flat surface part, 6d opening diameter, 6e outer diameter, 7 fan, 7a blade, 8 motor, 10 indoor unit, 11 housing, 12 outlet part, 13 Front suction part, 14 Rear suction part, 15 outlet flange, 16 drain receiver, 17 drain water transfer part, 18 drain pan, 18a drain port, 19 sky Nell, 20 front frame, 21 the rear frame, 22 a motor mounting plate 23 motor base, 24 a right side panel, 25 left side panel, 30 a heat exchanger.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)

Abstract

This air-conditioner has a fan casing which is disposed inside of a housing and which accommodates a fan. The fan casing has a casing main body fixed to the housing, a casing split section fixed to the casing main body, and a bell mouth part provided in a suction port formed by the casing main body and the casing split section. The bell mouth part is formed as a single body and is configured to be separable from the casing main body and the casing split section.

Description

空気調和装置Air conditioner
　本発明は、ファンを収納するファンケーシングを備えた空気調和装置に関する。 The present invention relates to an air conditioner including a fan casing that houses a fan.
　従来から、熱交換器において熱交換された空気を被調和室内に送風するファンを備えた空気調和装置が用いられている（例えば特許文献１参照）。特許文献１の空気調和装置は、ファンモータの回転軸に連結されたファンの回転により、筐体の空気吸込口からファンケーシング内に空気を吸い込み、ファンケーシングから吹き出した空気を熱交換器へ送るように構成されている。そして、熱交換器へ送られた空気が、熱源機から熱交換器に流入する熱媒体と熱交換した後、筐体の空気吹出口から吹き出すことによって室内温度が調整される。 Conventionally, an air conditioner including a fan that blows air exchanged in a heat exchanger into a conditioned room has been used (see, for example, Patent Document 1). The air conditioner of Patent Document 1 sucks air into the fan casing from the air suction port of the housing by the rotation of the fan connected to the rotation shaft of the fan motor, and sends the air blown from the fan casing to the heat exchanger. It is configured as follows. And after the air sent to the heat exchanger exchanges heat with the heat medium flowing into the heat exchanger from the heat source machine, the room temperature is adjusted by blowing out from the air outlet of the housing.
　しかしながら、特許文献１の空気調和装置は、ファンモータとファンとが直接連結され、ファンケーシングの吸込口にファンモータの回転軸を通した形となっている。このため、ファンモータのみ、或いはファンのみをメンテナンスしようとしても、ファンモータの回転軸がファンケーシングと干渉することから、ファンケーシングごと取り外す大掛かりなメンテナンスが必要となる。 However, in the air conditioner of Patent Document 1, the fan motor and the fan are directly connected, and the rotation axis of the fan motor is passed through the suction port of the fan casing. For this reason, even if it is going to maintain only a fan motor or only a fan, since the rotating shaft of a fan motor interferes with a fan casing, the large-scale maintenance which removes the whole fan casing is needed.
　こうした課題から、メンテナンス時のファンモータ及びファンの取り外しを容易にするため、ファンケーシングを二つの分割体に分割できるようにした空気調和装置が提案されている（例えば特許文献２参照）。特許文献２の空気調和装置において、ファンケーシングを構成する二つの分割体の取り付けは、爪状の係止部によって行われる。 From these problems, an air conditioner has been proposed in which the fan casing can be divided into two divided bodies in order to facilitate the removal of the fan motor and the fan during maintenance (for example, see Patent Document 2). In the air conditioner of Patent Document 2, the two divided bodies constituting the fan casing are attached by a claw-shaped locking portion.
実開平４－４６１４号公報Japanese Utility Model Publication No. 4-4614 特開２０１３－２４９７６６号公報JP 2013-249766 A
　しかしながら、特許文献２のファンケーシングは、空気の吸込み部の曲面部分であるベルマウス部も含めて二つに分割されている。このため、二つの分割体の接合面にズレが生じると、そのズレがたとえわずかであっても、ずれた端部に生じたエッジ部は、風切り音の発生原因となる。 However, the fan casing of Patent Document 2 is divided into two parts including a bell mouth part which is a curved surface part of an air suction part. For this reason, when a deviation occurs in the joint surface between the two divided bodies, even if the deviation is slight, the edge portion generated at the shifted end portion causes a wind noise.
　本発明は、上記のような課題を解決するためになされたものであり、メンテナンス性が高く、かつファンの送風時における風切り音を抑制する空気調和装置を提供することを目的とする。 The present invention has been made to solve the above-described problems, and an object thereof is to provide an air conditioner that has high maintainability and suppresses wind noise when a fan blows air.
　本発明に係る空気調和装置は、ファンと、ファンを収容し、空気を給気する吸込口及び吸込口から給気された空気を吹き出す吹出口が形成されたファンケーシングと、ファンによって流動する空気が通過する熱交換器と、空気の吹出部及び吸込部が形成され、ファンを収容したファンケーシング及び熱交換器が内部に設けられた筐体と、を有し、ファンケーシングは、筐体に固定されるケーシング本体部と、ケーシング本体部に固定されるケーシング分割部と、ケーシング本体部及びケーシング分割部によって形成される吸込口に配設された一体成形品であるベルマウス部と、を有するものである。 An air conditioner according to the present invention includes a fan, a fan casing in which the fan is accommodated and an air inlet for supplying air and an air outlet for blowing out air supplied from the air inlet, and air flowing by the fan A heat exchanger through which the air passes, a fan casing in which an air blowing portion and a suction portion are formed, and a housing in which the fan is accommodated and a heat exchanger are provided inside, and the fan casing is attached to the housing. A casing main body portion to be fixed, a casing division portion fixed to the casing main body portion, and a bell mouth portion that is an integrally molded product disposed in a suction port formed by the casing main body portion and the casing division portion. Is.
　本発明は、ファンを収容するファンケーシングが、筐体に固定されるケーシング本体部と、ケーシング本体部に固定されるケーシング分割部と、一体成形品であるベルマウス部と、に分割可能であり、ベルマウス部は、ケーシング本体部及びケーシング分割部によって形成される吸込口に配設される。このため、メンテナンス性の向上を図ると共に、ファンの送風時における風切り音を抑制することができる。 In the present invention, a fan casing that accommodates a fan can be divided into a casing main body portion fixed to the casing, a casing division portion fixed to the casing main body portion, and a bell mouth portion that is an integrally molded product. The bell mouth portion is disposed in a suction port formed by the casing main body portion and the casing dividing portion. For this reason, while improving a maintainability, the wind noise during the ventilation of a fan can be suppressed.
本発明の実施の形態に係る空気調和装置の室内機を前面からみた外観斜視図である。It is the external appearance perspective view which looked at the indoor unit of the air conditioning apparatus which concerns on embodiment of this invention from the front. 図１の空気調和装置の室内機を背面からみた外観斜視図である。It is the external appearance perspective view which looked at the indoor unit of the air conditioning apparatus of FIG. 1 from the back. 図１の空気調和装置の室内機を前面からみた内部斜視図である。It is the internal perspective view which looked at the indoor unit of the air conditioning apparatus of FIG. 1 from the front. 図１の空気調和装置の室内機に備わるファンケーシングの外観斜視図である。It is an external appearance perspective view of the fan casing with which the indoor unit of the air conditioning apparatus of FIG. 1 is equipped. 図４のファンケーシングの分解構造斜視図である。It is a disassembled structure perspective view of the fan casing of FIG.
実施の形態．
　図１は、本発明の実施の形態に係る空気調和装置の室内機を前面からみた外観斜視図である。図２は、図１の空気調和装置の室内機を背面からみた外観斜視図である。図３は、図１の空気調和装置の室内機を前面からみた内部斜視図である。図１～図３に基づき、本実施の形態に係る空気調和装置の室内機の構成について説明する。なお、図１～図３では、ｘ軸正方向を前方向、ｙ軸正方向を右方向、ｚ軸正方向を上方向と定義する。 Embodiment.
FIG. 1 is an external perspective view of an indoor unit of an air conditioner according to an embodiment of the present invention as viewed from the front. FIG. 2 is an external perspective view of the indoor unit of the air conditioner of FIG. 1 as viewed from the back. FIG. 3 is an internal perspective view of the indoor unit of the air conditioner of FIG. 1 as viewed from the front. The configuration of the indoor unit of the air conditioner according to the present embodiment will be described with reference to FIGS. 1 to 3, the positive x-axis direction is defined as the forward direction, the positive y-axis direction as the right direction, and the positive z-axis direction as the upward direction.
　本実施の形態における空気調和装置の室内機１０は、被調和室に配設されており、屋外などに設置された熱源機（図示せず）に、熱媒体を循環させる配管を介して接続されている。室内機１０は、熱源機にて排熱又は吸熱された熱媒体を循環させ、被調和室内の空気調和を行うものである。 The indoor unit 10 of the air conditioning apparatus in the present embodiment is disposed in a conditioned room, and is connected to a heat source unit (not shown) installed outdoors or the like via a pipe that circulates a heat medium. ing. The indoor unit 10 circulates the heat medium exhausted or absorbed by the heat source unit, and performs air conditioning in the conditioned room.
　図１～図３に示すように、室内機１０は、筐体１１を有している。筐体１１は、上部に空気（被調和空気）を吹き出す吹出部１２を有し、前面部に空気を吸い込む前側吸込部１３を有し、背面部に空気を吸い込む後側吸込部１４を有している。また、筐体１１は、右側面パネル２４及び左側面パネル２５を有している。右側面パネル２４と左側面パネル２５とは、筐体１１において、左右対称に配設されている。 As shown in FIGS. 1 to 3, the indoor unit 10 has a housing 11. The housing 11 has a blowout part 12 that blows out air (conditioned air) at the top, has a front suction part 13 that sucks air into the front part, and has a rear suction part 14 that sucks air into the back part. ing. The housing 11 has a right side panel 24 and a left side panel 25. The right side panel 24 and the left side panel 25 are disposed symmetrically in the housing 11.
　さらに、室内機１０は、筐体１１の内部に、空気を送風するファン７と、ファン７を駆動するモータ８と、ファン７を収容するファンケーシング１と、熱源機から流入する熱媒体と空気とを熱交換させる熱交換器３０と、を有している。 Furthermore, the indoor unit 10 includes a fan 7 that blows air, a motor 8 that drives the fan 7, a fan casing 1 that houses the fan 7, and a heat medium and air that flows from the heat source unit inside the housing 11. And a heat exchanger 30 for exchanging heat with each other.
　室内機１０は、例えば、被調和室内の床面に設置され、吹出部１２の周囲に配置された吹出フランジ１５が、被調和室内の天井に配置された吹出ダクトに接続されている。室内機１０は、ファン７を駆動させることで、被調和室内の空気を前側吸込部１３及び後側吸込部１４から吸い込み、熱交換器３０を通し、熱交換器３０の内部の熱媒体と空気とを熱交換させ、吹出部１２及び吹出ダクトを経て、再び被調和室内に供給している。つまり、室内機１０は、被調和室内の空気を循環させることにより、空気調和を行うものである。 The indoor unit 10 is installed, for example, on the floor surface of the conditioned room, and a blowing flange 15 arranged around the blowing unit 12 is connected to a blowing duct arranged on the ceiling of the conditioned room. The indoor unit 10 drives the fan 7 to suck the air in the conditioned room from the front suction unit 13 and the rear suction unit 14, passes through the heat exchanger 30, and heat medium and air inside the heat exchanger 30. Are exchanged in heat, and supplied to the conditioned room again through the blowout part 12 and the blowout duct. That is, the indoor unit 10 performs air conditioning by circulating the air in the room to be conditioned.
　ファン７は、例えば、遠心式のシロッコファンからなり、複数の羽根７ａが円筒形状に配置されている。すなわち、ファン７は、ファンケーシング１の側面方向から内部に空気を吸込み、吸い込んだ空気を、遠心力の作用で外側に放出するものである。本実施の形態では、ファン７として、両吸込形のシロッコファンを採用している。 The fan 7 is, for example, a centrifugal sirocco fan, and a plurality of blades 7a are arranged in a cylindrical shape. That is, the fan 7 sucks air into the inside from the side surface direction of the fan casing 1 and discharges the sucked air to the outside by the action of centrifugal force. In the present embodiment, a double suction sirocco fan is employed as the fan 7.
　ファン７の周囲には、ファンケーシング１が設けられている。ファンケーシング１は、筐体１１に備わる天パネル１９と、前側フレーム２０と、後側フレーム２１とに固定されている。ファンケーシング１は、前側フレーム２０及び後側フレーム２１に固定する際に用いる固定部材１ｆを有している。 A fan casing 1 is provided around the fan 7. The fan casing 1 is fixed to a top panel 19 provided in the housing 11, a front frame 20, and a rear frame 21. The fan casing 1 has a fixing member 1 f used when fixing to the front frame 20 and the rear frame 21.
　モータ８は、モータ取付板２２に取り付けられており、モータ取付板２２は、モータ台２３に取り付けられている。モータ取付板２２の前側は、モータ台２３にネジによって取り付けられており、モータ取付板２２の後側は、ピン（不図示）によって係止されている。このため、前側のネジを外し、後側のピンを外せる程度にモータ取付板２２を動かせば、モータ８をモータ取付板２２ごと取り外すことができる。 The motor 8 is attached to a motor attachment plate 22, and the motor attachment plate 22 is attached to a motor base 23. The front side of the motor mounting plate 22 is attached to the motor base 23 with screws, and the rear side of the motor mounting plate 22 is locked by pins (not shown). For this reason, the motor 8 can be removed together with the motor mounting plate 22 by removing the front screw and moving the motor mounting plate 22 to such an extent that the rear pin can be removed.
　熱交換器３０は、例えばフィンアンドチューブ型熱交換器からなり、筐体１１内に斜めに配置されている。かかる配置は、有効面積を確保すると共に室内機１０の外形寸法を小さくするためのものであるが、同時に空気が必ず熱交換器３０を通過するように誘導する仕切板の役割も兼ねている。 The heat exchanger 30 is composed of, for example, a fin-and-tube heat exchanger, and is disposed in the housing 11 at an angle. Such an arrangement is for securing an effective area and reducing the outer dimensions of the indoor unit 10, but at the same time, also serves as a partition plate for guiding air to always pass through the heat exchanger 30.
　また、熱交換器３０の下部にはドレン受け１６が設けられている。ドレン受け１６は、結露水を効率よく排出させるため、右斜め前方向に傾斜しており、端部に設けられた開口がドレン導水部１７の上端部に接続されている。 Also, a drain receiver 16 is provided at the bottom of the heat exchanger 30. The drain receiver 16 is inclined in the diagonally forward right direction to efficiently discharge condensed water, and an opening provided at an end portion is connected to an upper end portion of the drain water guiding portion 17.
　ドレン導水部１７は管形状となっている。これは、結露水が送風によって巻き上げられ、供給する空気に混在しないようにするためである。ドレン導水部１７の下端部は、ドレンパン１８上に設けられている。ドレンパン１８は、右方向に傾斜しており、端部にはドレン口１８ａが設けられている。 The drain water guide part 17 has a tubular shape. This is to prevent the dew condensation water from being wound up by the air and mixed into the supplied air. A lower end portion of the drain water guiding portion 17 is provided on the drain pan 18. The drain pan 18 is inclined to the right, and a drain port 18a is provided at the end.
　すなわち、熱交換器３０における空気との熱交換によって生じた結露水は、ドレン受け１６を通り、ドレン導水部１７及びドレンパン１８を経て、ドレン口１８ａより排出される。 That is, the dew condensation water generated by the heat exchange with the air in the heat exchanger 30 passes through the drain receiver 16, passes through the drain conduit 17 and the drain pan 18, and is discharged from the drain port 18 a.
　ここで、本実施の形態におけるドレンパン１８は、塗装により耐食性を向上させた鋼板製である。もっとも、ドレンパン１８は、例えば発泡スチロール等の樹脂材を用いて形成されていてもよい。ただし、該樹脂材を用いて形成したドレンパン１８は、結露水を受ける面を、防カビ処理及び防水処理が施された樹脂シート等で保護する必要がある。 Here, the drain pan 18 in the present embodiment is made of a steel plate whose corrosion resistance is improved by painting. But the drain pan 18 may be formed using resin materials, such as a polystyrene foam, for example. However, the drain pan 18 formed using the resin material needs to protect the surface that receives the dew condensation water with a resin sheet or the like that has been subjected to mold prevention treatment and waterproof treatment.
　なお、ドレン受け１６の傾斜方向は、図３の例に限らず、ドレン導水部１７の位置関係に応じて変更してもよい。例えば、筐体１１内の前側中央にドレン導水部１７を配置する場合は、当該ドレン導水部１７の上端部に繋がるようにドレン受け１６に傾斜をつけるようにするとよい。 The inclination direction of the drain receiver 16 is not limited to the example of FIG. 3, and may be changed according to the positional relationship of the drain water guiding unit 17. For example, when the drain water guide portion 17 is arranged at the front center in the housing 11, the drain receiver 16 may be inclined so as to be connected to the upper end portion of the drain water guide portion 17.
　また、ドレンパン１８の傾斜方向は、図３の例に限らず、ドレン口１８ａの位置関係に応じて変更してもよい。例えば、ドレン口１８ａが左右の端部どちらにも設けられたドレンパン１８を採用した場合は、施工時のドレン配管の方向によって使用するドレン口１８ａを選択し、選択したドレン口１８ａに合わせてドレンパン１８の傾斜を変更するとよい。このように、ドレンパン１８の傾斜を可変させる構造を採れば、現地施工性が向上する。 Further, the inclination direction of the drain pan 18 is not limited to the example of FIG. 3, but may be changed according to the positional relationship of the drain port 18a. For example, when the drain pan 18 provided at both the left and right end portions of the drain port 18a is adopted, the drain port 18a to be used is selected according to the direction of the drain pipe at the time of construction, and the drain pan is matched to the selected drain port 18a. It is good to change 18 inclinations. Thus, if the structure which varies the inclination of the drain pan 18 is taken, field construction property will improve.
　図４は、空気調和装置の室内機１０に備わるファンケーシング１の外観斜視図である。図５は、ファンケーシング１の分解構造斜視図である。図４及び図５を参照して、ファンケーシング１の構造をより詳細に説明する。なお、図４及び図５においても、ｘ軸正方向、ｙ軸正方向、及びｚ軸正方向を、図１～図３と同様に定義する。 FIG. 4 is an external perspective view of the fan casing 1 provided in the indoor unit 10 of the air conditioner. FIG. 5 is an exploded perspective view of the fan casing 1. With reference to FIG.4 and FIG.5, the structure of the fan casing 1 is demonstrated in detail. 4 and 5, the x-axis positive direction, the y-axis positive direction, and the z-axis positive direction are defined in the same manner as in FIGS.
　ファンケーシング１は、筐体１１に固定されるケーシング本体部１ａと、ケーシング本体部１ａに固定されるケーシング分割部１ｂと、を有している。すなわち、ファンケーシング１は、前述の通り、筐体１１に備えた天パネル１９、前側フレーム２０、及び後側フレーム２１に固定されているが、これらに固定されているのはケーシング本体部１ａのみである。つまり、ファンケーシング１は、ケーシング本体部１ａが筐体１１に固定され、ケーシング分割部１ｂは、ケーシング本体部１ａにネジ止めされることにより、筐体１１に間接的に固定されている。 The fan casing 1 has a casing main body 1a fixed to the casing 11, and a casing division 1b fixed to the casing main body 1a. That is, as described above, the fan casing 1 is fixed to the top panel 19, the front frame 20, and the rear frame 21 provided in the casing 11, but only the casing body 1 a is fixed to these. It is. In other words, the fan casing 1 has the casing body 1a fixed to the casing 11, and the casing division 1b is indirectly fixed to the casing 11 by being screwed to the casing body 1a.
　ファンケーシング１には、空気を給気する吸込口４と、吸込口４から給気された空気を吹き出す吹出口２とが形成されている。より具体的に、ケーシング本体部１ａの上部には、空気を吹き出す吹出口２が設けられている。また、図４に示すように、ファンケーシング１は、ケーシング本体部１ａとケーシング分割部１ｂとによって吸込口４を形成するものである。 The fan casing 1 is formed with an inlet 4 for supplying air and an outlet 2 for blowing out the air supplied from the inlet 4. More specifically, the blower outlet 2 which blows off air is provided in the upper part of the casing main-body part 1a. Moreover, as shown in FIG. 4, the fan casing 1 forms the suction inlet 4 with the casing main-body part 1a and the casing division | segmentation part 1b.
　さらに、ファンケーシング１は、ケーシング本体部１ａ及びケーシング分割部１ｂによって形成される吸込口４に配設される二つのベルマウス部６を有している。より具体的に、吸込口４は、ケーシング本体部１ａ及びケーシング分割部１ｂの一方の側面及び他方の側面にそれぞれ形成されており、二つのベルマウス部６は、それぞれ、一方の側面と他方の側面とに配設されている。 Furthermore, the fan casing 1 has two bell mouth portions 6 disposed in the suction port 4 formed by the casing main body portion 1a and the casing division portion 1b. More specifically, the suction port 4 is formed on one side surface and the other side surface of the casing main body portion 1a and the casing division portion 1b, respectively, and the two bell mouth portions 6 respectively include one side surface and the other side surface. It is arranged on the side.
　すなわち、ファンケーシング１は、吹出口２の近傍である第一接合部３と、吹出口２を上側とした場合の吸込口４の下部にあたる第二接合部５との二箇所において、ケーシング本体部１ａとケーシング分割部１ｂとに分割できる構造となっている。そして、送風時において、空気は、ベルマウス部６及びファンケーシング１の側面の吸込口４を経て、ファン７の内部に吸い込まれ、ファンケーシング１の内面を通り、吹出口２より吹き出される。 That is, the fan casing 1 has a casing main body portion at two locations, a first joint portion 3 in the vicinity of the air outlet 2 and a second joint portion 5 that is a lower portion of the suction port 4 when the air outlet 2 is located on the upper side. It has a structure that can be divided into 1a and casing dividing portion 1b. At the time of blowing, air is sucked into the fan 7 through the bell mouth portion 6 and the suction port 4 on the side surface of the fan casing 1, passes through the inner surface of the fan casing 1, and is blown out from the blower outlet 2.
　図５に示すように、ケーシング本体部１ａの第一接合部３にあたる部分には、フランジ状の第一本体折り曲げ部３ａが設けられている。ケーシング分割部１ｂの第一接合部３にあたる部分には、フランジ状の第一分割折り曲げ部３ｂが設けられている。第一本体折り曲げ部３ａ及び第一分割折り曲げ部３ｂは、ケーシング本体部１ａ及びケーシング分割部１ｂの外周から突起するように形成され、上方向である吹出口２の軸方向に沿って延びている。 As shown in FIG. 5, a flange-like first main body bent portion 3a is provided at a portion corresponding to the first joint portion 3 of the casing main body portion 1a. A flange-like first divided bent portion 3b is provided at a portion corresponding to the first joint portion 3 of the casing divided portion 1b. The 1st main body bending part 3a and the 1st division | segmentation bending part 3b are formed so that it may protrude from the outer periphery of the casing main body part 1a and the casing division | segmentation part 1b, and is extended along the axial direction of the blower outlet 2 which is an upper direction. .
　ケーシング本体部１ａの第二接合部５にあたる部分には、フランジ状の第二本体折り曲げ部５ａが設けられている。ケーシング分割部１ｂの第二接合部５にあたる部分には、フランジ状の第二分割折り曲げ部５ｂが設けられている。第二本体折り曲げ部５ａ及び第二分割折り曲げ部５ｂは、ケーシング本体部１ａ及びケーシング分割部１ｂの外周から突起するように形成されている。また、ケーシング本体部１ａの下方には、固定部材１ｆが取り付けられている、第二本体折り曲げ部５ａ及び第二分割折り曲げ部５ｂは、前方に傾斜した斜め下方向に沿って延びている。 A flange-like second main body bent portion 5a is provided at a portion corresponding to the second joint portion 5 of the casing main body portion 1a. A flange-like second divided bent portion 5b is provided at a portion corresponding to the second joint portion 5 of the casing divided portion 1b. The 2nd main body bending part 5a and the 2nd division | segmentation bending part 5b are formed so that it may protrude from the outer periphery of the casing main body part 1a and the casing division | segmentation part 1b. In addition, below the casing main body 1a, the second main body bent portion 5a and the second divided bent portion 5b, to which the fixing member 1f is attached, extend along an obliquely downward direction inclined forward.
　また、第一本体折り曲げ部３ａ及び第一分割折り曲げ部３ｂは、それぞれ、複数のネジ穴３ｈを有しており、第二本体折り曲げ部５ａ及び第二分割折り曲げ部５ｂは、それぞれ、複数のネジ穴５ｈを有している。すなわち、ファンケーシング１は、図４に示すように、ケーシング本体部１ａとケーシング分割部１ｂとをネジ３ｓ及びネジ５ｓによって固定できる構造となっている。 Each of the first main body bent portion 3a and the first divided bent portion 3b has a plurality of screw holes 3h, and each of the second main body bent portion 5a and the second divided bent portion 5b has a plurality of screws. It has a hole 5h. That is, as shown in FIG. 4, the fan casing 1 has a structure in which the casing main body 1a and the casing division 1b can be fixed by the screws 3s and 5s.
　ベルマウス部６は、図５に示すように、複数のネジ穴６ｈを有しており、図４に示すように、ネジ６ｓによって、ケーシング本体部１ａ及びケーシング分割部１ｂに固定されるものである。ベルマウス部６には、中央に開口部６ａが設けられている。また、ベルマウス部６は、吸込口４に嵌め込まれる内径部６ｂと、ケーシング本体部１ａとケーシング分割部１ｂとの接合部である第一接合部３及び第二接合部５の少なくとも一部を塞ぐ平面部６ｃと、により構成されている。 The bell mouth portion 6 has a plurality of screw holes 6h as shown in FIG. 5, and is fixed to the casing main body portion 1a and the casing division portion 1b by screws 6s as shown in FIG. is there. The bell mouth portion 6 is provided with an opening 6a in the center. The bell mouth portion 6 includes at least a part of the inner diameter portion 6b fitted into the suction port 4 and the first joint portion 3 and the second joint portion 5 which are joint portions between the casing main body portion 1a and the casing division portion 1b. And a flat surface portion 6c for closing.
　ベルマウス部６は、開口部６ａに面する縁部が、ファンケーシング１の内部に向かって円弧状の断面となるように形成されている。すなわち、内径部６ｂの開口部６ａ側の面は、曲面であり、開口部６ａの軸方向を中心とした回転面における断面の形状が円弧状となっている。つまり、内径部６ｂの開口部６ａ側の曲面は、例えばｘｙ平面又はｙｚ平面で切断した断面が円弧状となっている。また、内径部６ｂ及び平面部６ｃは、ｘｚ平面で切断した断面の形状が円環状となっている。つまり、平面部６ｃは、側面視における形状が円環状となっている。そして、ベルマウス部６は、一体成形されており、従来のように分割して形成されたものではない。したがって、ベルマウス部６は、開口部６ａに面する部分にエッジなどの突起した部分が存在しないため、風切り音の発生を防ぐことができる。 The bell mouth portion 6 is formed so that an edge facing the opening 6 a has an arc-shaped cross section toward the inside of the fan casing 1. That is, the surface on the opening 6a side of the inner diameter portion 6b is a curved surface, and the cross-sectional shape of the rotating surface centering on the axial direction of the opening 6a is an arc shape. That is, the curved surface on the opening 6a side of the inner diameter portion 6b has an arc shape in a cross section cut along, for example, the xy plane or the yz plane. Further, the inner diameter portion 6b and the plane portion 6c have an annular shape in cross section cut along the xz plane. That is, the planar portion 6c has an annular shape when viewed from the side. And the bellmouth part 6 is integrally molded and is not divided | segmented and formed conventionally. Therefore, since the bell mouth part 6 does not have a protruding part such as an edge in the part facing the opening 6a, it is possible to prevent wind noise.
　本実施の形態では、ベルマウス部６の内径部６ｂが吸込口４に嵌り込むように構成されており、ベルマウス部６の開口径６ｄは、吸込口４の径よりも小さくなっている。また、送風効率を高めるために、ベルマウス部６の開口径６ｄは、ファン７の外径よりも小さくなっている。 In the present embodiment, the inner diameter portion 6 b of the bell mouth portion 6 is configured to fit into the suction port 4, and the opening diameter 6 d of the bell mouth portion 6 is smaller than the diameter of the suction port 4. Further, the opening diameter 6 d of the bell mouth portion 6 is smaller than the outer diameter of the fan 7 in order to increase the blowing efficiency.
　さらに、吸込口４の径は、ファン７の外径よりも大きくなっている。このため、例えば、左側面パネル２５及び右側面パネル２４のうちの少なくとも一方を取り外すことにより、ケーシング分割部１ｂを取り外すことなく、ファン７を取り外すことができる。 Furthermore, the diameter of the suction port 4 is larger than the outer diameter of the fan 7. Therefore, for example, by removing at least one of the left side panel 25 and the right side panel 24, the fan 7 can be removed without removing the casing dividing portion 1b.
　ここで、本実施の形態におけるファンケーシング１は、第一接合部３における接合面の上下方向の長さが、第二接合部５における接合面の上下方向の長さよりも短くなっている。よって、ベルマウス部６の中心に対応する吸込口４の中心を「Ｏ」とした場合、中心Ｏと第一接合部３における外周の面との距離である第一仮想半径４ａは、中心Ｏと第二接合部５における外周の面との距離である第二仮想半径４ｂよりも短くなっている。なお、第一接合部３における接合面の上下方向の長さ及び第一仮想半径４ａには、第一本体折り曲げ部３ａ及び第一分割折り曲げ部３ｂの上下方向の長さは含まない。また、第二接合部５における接合面の上下方向の長さ及び第二仮想半径４ｂには、第二本体折り曲げ部５ａ及び第二分割折り曲げ部５ｂの上下方向の長さは含まない。 Here, in the fan casing 1 in the present embodiment, the vertical length of the joint surface in the first joint portion 3 is shorter than the vertical length of the joint surface in the second joint portion 5. Therefore, when the center of the suction port 4 corresponding to the center of the bell mouth portion 6 is “O”, the first virtual radius 4 a that is the distance between the center O and the outer peripheral surface of the first joint portion 3 is the center O. And the second virtual radius 4b, which is the distance between the outer peripheral surface of the second joint 5 and the second virtual radius 4b. The vertical length of the joint surface and the first virtual radius 4a in the first joint portion 3 do not include the vertical lengths of the first main body bent portion 3a and the first divided bent portion 3b. Further, the length in the vertical direction of the joint surface and the second virtual radius 4b in the second joint 5 do not include the length in the vertical direction of the second main body bent portion 5a and the second divided bent portion 5b.
　そして、ベルマウス部６は、ケーシング本体部１ａとケーシング分割部１ｂとの接合面の少なくとも一部を塞ぐものである。より具体的に、本実施の形態では、図４に示すように、ベルマウス部６の外径６ｅが、第一仮想半径４ａの二倍以上であり、かつ第二仮想半径４ｂの二倍より短くなっている。 The bell mouth portion 6 closes at least a part of the joint surface between the casing main body portion 1a and the casing division portion 1b. More specifically, in the present embodiment, as shown in FIG. 4, the outer diameter 6e of the bell mouth portion 6 is more than twice the first virtual radius 4a and more than twice the second virtual radius 4b. It is getting shorter.
　ここで、第一仮想半径４ａの二倍の長さは、ケーシング本体部１ａとケーシング分割部１ｂとの一方の接合部である第一接合部３を基準とした外径に相当し、第二仮想半径４ｂの二倍の長さは、ケーシング本体部１ａとケーシング分割部１ｂとの他方の接合部である第二接合部５を基準とした外径に相当する。 Here, the length twice as large as the first virtual radius 4a corresponds to the outer diameter based on the first joint portion 3 which is one joint portion of the casing main body portion 1a and the casing split portion 1b. The length twice the imaginary radius 4b corresponds to the outer diameter based on the second joint 5 which is the other joint of the casing body 1a and the casing split part 1b.
　このように、ファンケーシング１では、ケーシング本体部１ａとケーシング分割部１ｂとの接合面の少なくとも一部が、ベルマウス部６によって塞がれているため、ファン７の送風時における風漏れの発生を抑制することができる。 Thus, in the fan casing 1, at least a part of the joint surface between the casing main body 1 a and the casing dividing portion 1 b is blocked by the bell mouth portion 6, so that wind leakage occurs when the fan 7 blows air. Can be suppressed.
　もっとも、ベルマウス部６の平面部６ｃの側面視における形状は、円環状に限らず、例えば、ベルマウス部６の第二接合部５側の仮想半径が、ベルマウス部６の第一接合部３側の仮想半径よりも長くなるような任意の形状とし、第一接合部３及び第二接合部５を全て覆うようにしてもよい。 However, the shape of the flat surface portion 6c of the bell mouth portion 6 in the side view is not limited to an annular shape. For example, the virtual radius on the second joint portion 5 side of the bell mouth portion 6 is the first joint portion of the bell mouth portion 6. You may make it the arbitrary shape which becomes longer than the virtual radius of 3 side, and may cover the 1st junction part 3 and the 2nd junction part 5 altogether.
　ところで、第一本体折り曲げ部３ａと第一分割折り曲げ部３ｂとは、ネジ３ｓの締結力によって固定されており、第二本体折り曲げ部５ａと第二分割折り曲げ部５ｂとも、ネジ５ｓの締結力によって固定されている。また、本実施の形態では、ケーシング本体部１ａとケーシング分割部１ｂとの接合面のうち、ケーシング本体部１ａ及びケーシング分割部１ｂの側面で、かつ第一接合部３にあたる部分には、あらかじめ振動による接触のないレベルで隙間を設けている。これは、ケーシング本体部１ａの端面とケーシング分割部１ｂの端面とは、製作公差によって均一に接触しないことから、第一接合部３に上記隙間を設けなければ、送風時の振動による連続的な接触音が発生してしまうためである。すなわち、ファンケーシング１は、ケーシング本体部１ａとケーシング分割部１ｂとの接合面に、ケーシング本体部１ａの端面とケーシング分割部１ｂの端面とが送風時においても接触しない程度の僅かな隙間が設けられているため、連続的な接触音である異音の発生を抑えることができる。 By the way, the 1st main body bending part 3a and the 1st division | segmentation bending part 3b are being fixed by the fastening force of the screw 3s, and both the 2nd main body bending part 5a and the 2nd division | segmentation bending part 5b are by the fastening force of the screw 5s. It is fixed. Moreover, in this Embodiment, among the joint surfaces of the casing main-body part 1a and the casing division | segmentation part 1b, the part which is the side surface of the casing main-body part 1a and the casing division | segmentation part 1b and corresponds to the 1st junction part 3 is vibrated beforehand. A gap is provided at a level where there is no contact. This is because the end surface of the casing main body 1a and the end surface of the casing dividing portion 1b do not come into uniform contact due to manufacturing tolerances. This is because contact sounds are generated. That is, the fan casing 1 is provided with a slight gap on the joint surface between the casing main body 1a and the casing dividing portion 1b so that the end surface of the casing main body 1a and the end surface of the casing dividing portion 1b do not come into contact with each other even during blowing. Therefore, it is possible to suppress the generation of abnormal sounds that are continuous contact sounds.
　しかしながら、送風時には、第一接合部３に設けられた隙間から風が漏れてしまう。この点、ファンケーシング１では、一体成形品であるベルマウス部６が、ケーシング本体部１ａ及びケーシング分割部１ｂによって形成される側面に配設され、第一接合部３に設けられた隙間は、ベルマウス部６の平面部６ｃが塞ぐように構成されている。このため、ファンケーシング１によれば、送風時の風漏れを防ぐことができる。すなわち、ベルマウス部６は、ファンケーシング１の風漏れ防止機能を有している。 However, when air is blown, the wind leaks from the gap provided in the first joint 3. In this regard, in the fan casing 1, the bell mouth portion 6, which is an integrally molded product, is disposed on the side surface formed by the casing main body portion 1 a and the casing division portion 1 b, and the gap provided in the first joint portion 3 is The flat portion 6c of the bell mouth portion 6 is configured to be closed. For this reason, according to the fan casing 1, the wind leakage at the time of ventilation can be prevented. That is, the bell mouth portion 6 has a function of preventing wind leakage of the fan casing 1.
　また、第一分割折り曲げ部３ｂの端部には、第一本体折り曲げ部３ａの方向に向かって延びる係止部３ｃが設けられている。よって、ケーシング分割部１ｂを取り付ける際又は取り外す際に、係止部３ｃがケーシング本体部１ａに係止されるため、ケーシング分割部１ｂの脱落を抑制することができる。すなわち、ファンケーシング１によれば、メンテナンス時の安全性を高めると共に、ケーシング分割部１ｂの着脱時における作業性を向上することができる。 Moreover, the latching | locking part 3c extended toward the direction of the 1st main body bending part 3a is provided in the edge part of the 1st division | segmentation bending part 3b. Therefore, when attaching or removing the casing division part 1b, the locking part 3c is locked to the casing body part 1a, so that the casing division part 1b can be prevented from falling off. That is, according to the fan casing 1, while improving the safety at the time of a maintenance, the workability | operativity at the time of attachment or detachment of the casing division | segmentation part 1b can be improved.
　さらに、ケーシング分割部１ｂは、側面のうち、第二接合部５にあたる部分に、ケーシング本体部１ａの内面に重なるように形成された差込部５ｃを有している。すなわち、ケーシング分割部１ｂは、ケーシング本体部１ａとの接合部である第二接合部５にあたる部分に、ケーシング本体部１ａに向かって延び、ケーシング本体部１ａの内面に接する差込部５ｃを有している。このため、ケーシング本体部１ａにケーシング分割部１ｂを取り付けたとき、ベルマウス部６の取付面を面一にすることができると共に、送風時における風漏れを抑制することができる。 Furthermore, the casing division | segmentation part 1b has the insertion part 5c formed in the part which corresponds to the 2nd junction part 5 among the side surfaces so that it might overlap with the inner surface of the casing main-body part 1a. That is, the casing dividing portion 1b has an insertion portion 5c that extends toward the casing main body portion 1a and is in contact with the inner surface of the casing main body portion 1a at a portion corresponding to the second bonding portion 5 that is a joint portion with the casing main body portion 1a. is doing. For this reason, when the casing division | segmentation part 1b is attached to the casing main-body part 1a, while being able to make the attachment surface of the bellmouth part 6 flush | planar, the wind leak at the time of ventilation can be suppressed.
　より具体的に、ケーシング分割部１ｂの下方における接合面と差込部５ｃとの境界部分には、側面側つまりベルマウス部６側に段差が形成されており、差込部５ｃは、ケーシング分割部１ｂの下方における接合面から突出するように設けられている。したがって、ケーシング本体部１ａとケーシング分割部１ｂとを接合させると、ケーシング本体部１ａの下方における接合部が、上記段差に嵌り、ケーシング分割部１ｂの下方における接合面及び差込部５ｃの側面側の面に当接する。これにより、ケーシング本体部１ａ及びケーシング分割部１ｂの第二接合部５における側面が面一の状態となる。 More specifically, a step is formed on the side surface side, that is, the bell mouth portion 6 side, at the boundary portion between the joint surface and the insertion portion 5c below the casing division portion 1b. It is provided so as to protrude from the joint surface below the portion 1b. Therefore, when the casing main body 1a and the casing dividing portion 1b are joined, the joining portion below the casing main portion 1a fits into the step, and the joining surface below the casing dividing portion 1b and the side surface side of the insertion portion 5c. It abuts on the surface. Thereby, the side surface in the 2nd junction part 5 of the casing main-body part 1a and the casing division | segmentation part 1b will be in a flush state.
　ところで、ケーシング本体部１ａに差込部５ｃを設けるようにしてもよいが、ファンケーシング１内における空気の流れ方向を考慮すると、ケーシング分割部１ｂ側に設ける方がより好ましい。なぜなら、ファンケーシング１内における空気は、ケーシング本体部１ａからケーシング分割部１ｂに向かって流れるため、ケーシング本体部１ａに差込部５ｃを設けた場合は、当該差込部５ｃの先端面が抵抗となり、騒音の発生原因となるためである。すなわち、ファンケーシング１は、差込部５ｃをケーシング分割部１ｂ側に有するため、差込部５ｃに起因した騒音の発生を回避することができる。 By the way, although the insertion part 5c may be provided in the casing main body 1a, in consideration of the air flow direction in the fan casing 1, it is more preferable to provide it on the casing division part 1b side. This is because the air in the fan casing 1 flows from the casing main body 1a toward the casing dividing portion 1b. Therefore, when the insertion portion 5c is provided in the casing main body 1a, the front end surface of the insertion portion 5c is resistant. This is a cause of noise generation. That is, since the fan casing 1 has the insertion part 5c in the casing division | segmentation part 1b side, generation | occurrence | production of the noise resulting from the insertion part 5c can be avoided.
　なお、上述の通り、ベルマウス部６の外径６ｅは、第二仮想半径４ｂの二倍よりも短くなっているが、本実施の形態では、ケーシング分割部１ｂに差込部５ｃが設けられている。よって、ファンケーシング１によれば、ケーシング本体部１ａとケーシング分割部１ｂとの接合面のうち、ベルマウス部６によって覆われていない部分からの風漏れを防ぐことができるため、送風時における風切り音の発生を抑えることができる。 As described above, the outer diameter 6e of the bell mouth portion 6 is shorter than twice the second virtual radius 4b. However, in the present embodiment, the insertion portion 5c is provided in the casing division portion 1b. ing. Therefore, according to the fan casing 1, it is possible to prevent wind leakage from a portion of the joint surface between the casing body 1a and the casing dividing portion 1b that is not covered by the bell mouth portion 6, so Generation of sound can be suppressed.
　以上のように、ファンケーシング１において、吸込口４には、ベルマウス部６が、ケーシング本体部１ａ及びケーシング分割部１ｂとは別部品として設けられている。すなわちベルマウス部６は、その縁が、開口部６ａの軸方向及びファンケーシング１の内側に向かって円弧状の断面となるように一体成形されたものである。そして、ベルマウス部６は、ケーシング本体部１ａ及びケーシング分割部１ｂから分離可能に構成されている。したがって、ファンケーシング１には、従来の分割構造にみられる接合面のずれによって生じるエッジ部がないため、送風による風切り音の発生を抑えることができる。 As described above, in the fan casing 1, the bell mouth portion 6 is provided in the suction port 4 as a separate component from the casing main body portion 1a and the casing division portion 1b. That is, the bell mouth portion 6 is integrally formed so that the edge thereof has an arc-shaped cross section toward the axial direction of the opening 6 a and the inside of the fan casing 1. And the bellmouth part 6 is comprised so that isolation | separation from the casing main-body part 1a and the casing division | segmentation part 1b is possible. Therefore, since the fan casing 1 does not have an edge portion caused by the displacement of the joint surface seen in the conventional divided structure, it is possible to suppress the generation of wind noise due to air blowing.
　また、ファンケーシング１は、第一接合部３と第二接合部５とにおいて、ケーシング本体部１ａとケーシング分割部１ｂとに分離可能となっている。そして、ケーシング本体部１ａのみが、前側フレーム２０及び後側フレーム２１に固定される構造となっている。さらに、モータ取付板２２は、モータ台２３に対して、前側はネジ止めにより固定でき、後ろ側はピンによる係止で固定できる構造となっている。このため、ファン７のメンテナンス時には、ベルマウス部６のネジ６ｓを取り外した上で、第一本体折り曲げ部３ａと第一分割折り曲げ部３ｂとを固定しているネジ３ｓと、第二本体折り曲げ部５ａと第二分割折り曲げ部５ｂとを固定しているネジ５ｓとを取り外せば、ケーシング分割部１ｂのみを取り外すことができる。また、ファン７及びモータ８のメンテナンス時においては、ネジ３ｓ及びネジ５ｓと共に、モータ台２３にモータ取付板２２を固定する前側のネジ及び後側のピンを取り外すだけで、ファンケーシング１の全てを取り外すことなく、ファン７及びモータ８を取り外すことができる。すなわち、ファンケーシング１によれば、メンテナンス性の向上を図ることができる。 In addition, the fan casing 1 can be separated into a casing body 1a and a casing division 1b at the first joint 3 and the second joint 5. Only the casing body 1a is fixed to the front frame 20 and the rear frame 21. Further, the motor mounting plate 22 is structured such that the front side can be fixed to the motor base 23 by screwing and the rear side can be fixed by locking with a pin. For this reason, at the time of maintenance of the fan 7, after removing the screw 6s of the bell mouth part 6, the screw 3s for fixing the first main body bent part 3a and the first divided bent part 3b, and the second main body bent part If the screw 5s that fixes 5a and the second divided bent portion 5b is removed, only the casing divided portion 1b can be removed. Further, during maintenance of the fan 7 and the motor 8, all of the fan casing 1 can be removed by simply removing the front screw and the rear pin for fixing the motor mounting plate 22 to the motor base 23 together with the screw 3s and the screw 5s. The fan 7 and the motor 8 can be removed without removing them. That is, according to the fan casing 1, it is possible to improve the maintainability.
　さらに、筐体１１は、ケーシング分割部１ｂを保持する部材を有していないため、ケーシング分割部１ｂを支えるための構成部材を有していなければ、ケーシング分割部１ｂの着脱時に、ケーシング分割部１ｂを脱落させ、ケーシング分割部１ｂ及び筐体１１内の構成部材を破損させるおそれがある。この点、ケーシング分割部１ｂは、係止部３ｃを有しており、ケーシング分割部１ｂの着脱時には、係止部３ｃがケーシング本体部１ａに係止されるため、ケーシング分割部１ｂを脱落に起因した各構成部材の破損等のリスクを低減することができる。 Further, since the casing 11 does not have a member that holds the casing division part 1b, the casing division part 1b can be attached to and detached from the casing division part 1b unless the casing 11 has a constituent member for supporting the casing division part 1b. There is a risk of dropping 1b and damaging the casing dividing portion 1b and the components in the housing 11. In this respect, the casing dividing portion 1b has a locking portion 3c, and when the casing dividing portion 1b is attached or detached, the locking portion 3c is locked to the casing body 1a. It is possible to reduce the risk of breakage of each constituent member due to the damage.
　また、ファンケーシング１の側面の第一接合部３にあたる部分には、振動により接触しない程度の隙間が設けられていることから、ケーシング本体部１ａの端面とケーシング分割部１ｂの端面とが送風時においても接触しないため、異音の発生を抑制することができる。そして、ファンケーシング１は、一体成形品であるベルマウス部６が、第一接合部３に設けられた隙間を覆うように構成されているため、送風時における当該隙間からの風漏れを防ぐことができる。 In addition, since the gap corresponding to the first joint portion 3 on the side surface of the fan casing 1 is not provided by vibration, the end surface of the casing main body portion 1a and the end surface of the casing dividing portion 1b are not blown. Therefore, it is possible to suppress the generation of abnormal noise. And since the fan casing 1 is comprised so that the bell mouth part 6 which is an integrally molded product may cover the clearance gap provided in the 1st junction part 3, it prevents the wind leak from the said clearance gap at the time of ventilation. Can do.
　加えて、ケーシング分割部１ｂの第二接合部５にあたる部分には、ケーシング本体部１ａの内面に重なるように突出した差込部５ｃが設けられている。このため、ファンケーシング１によれば、送風時における風漏れ及び風漏れによる音を抑制することができる。 In addition, a portion corresponding to the second joint portion 5 of the casing dividing portion 1b is provided with an insertion portion 5c protruding so as to overlap the inner surface of the casing main body portion 1a. For this reason, according to the fan casing 1, it is possible to suppress wind leakage during blowing and sound due to wind leakage.
　上記実施の形態は、空気調和装置における好適な具体例であり、本発明の技術的範囲は、これらの態様に限定されるものではない。例えば、上記実施の形態では、ファン７が両吸込形のシロッコファンであり、ケーシング本体部１ａ及びケーシング分割部１ｂによって二つの吸込口４が形成されている場合を例示したが、これに限定されるものではない。すなわち、例えば、ファン７として片吸込形のシロッコファンを採用し、ケーシング本体部１ａ及びケーシング分割部１ｂによって、一方の側面のみに吸込口４が形成されるようにしてもよい。かかる構成を採った場合、ファンケーシング１は、一つの吸込口４に配設する一つのベルマウス部６を有していればよい。また、ファン７として片吸込形のシロッコファンを採用し、ケーシング本体部１ａ及びケーシング分割部１ｂによって、一方の側面に吸込口４を形成し、他方の側面にモータ８の連結用の開口を設けたような場合にも、ファンケーシング１が、一つの吸込口４に配設する一つのベルマウス部６を有するようにしてもよい。 The above embodiment is a preferred specific example of an air conditioner, and the technical scope of the present invention is not limited to these embodiments. For example, in the above embodiment, the fan 7 is a double-suction sirocco fan, and the case where the two suction ports 4 are formed by the casing main body 1a and the casing division 1b is illustrated, but the present invention is not limited thereto. It is not something. That is, for example, a single-suction sirocco fan may be employed as the fan 7, and the suction port 4 may be formed only on one side surface by the casing body 1 a and the casing division 1 b. When such a configuration is adopted, the fan casing 1 only needs to have one bell mouth portion 6 disposed in one suction port 4. Further, a single-suction sirocco fan is adopted as the fan 7, and the inlet 4 is formed on one side by the casing body 1 a and the casing division 1 b, and an opening for connecting the motor 8 is provided on the other side. In such a case, the fan casing 1 may have one bell mouth portion 6 disposed in one suction port 4.
　加えて、上記実施の形態では、吸込口４の径、ファン７の外径、ベルマウス部６の開口径６ｄの順に小さくなっている構成を例示したが、これに限らず、例えば、ベルマウス部６の開口径６ｄは、ファン７の外径より大きくてもよい。また、吸込口４の径は、ファン７の外径より小さくてもよい。 In addition, in the said embodiment, although the structure which became small in order of the diameter of the suction inlet 4, the outer diameter of the fan 7, and the opening diameter 6d of the bellmouth part 6 was illustrated, it is not restricted to this, For example, a bellmouth The opening diameter 6 d of the part 6 may be larger than the outer diameter of the fan 7. Further, the diameter of the suction port 4 may be smaller than the outer diameter of the fan 7.
　また、上記実施の形態では、室内機１０が被調和室内の床面に配置された場合を例に説明したが、これに限らず、室内機１０は、被調和室内の天井部又は天井裏部などに配置するようにしてもよい。併せて、図１～図５を用いての説明では、便宜上、上方向と下方向とを特定したが、これに限らず、ファンケーシング１は、室内機１０の構成に応じて、配置する方向を適宜変更することができる。 Moreover, in the said embodiment, although the case where the indoor unit 10 was arrange | positioned on the floor surface in a to-be-conditioned room was demonstrated to the example, not only this but the indoor unit 10 has a ceiling part or a ceiling back part in a to-be-conditioned room. You may make it arrange | position to. In addition, in the description using FIGS. 1 to 5, the upper direction and the lower direction are specified for convenience. However, the present invention is not limited to this, and the fan casing 1 is arranged in the direction in which it is arranged according to the configuration of the indoor unit 10. Can be changed as appropriate.
　さらに、上記実施の形態では、室内機１０が、送風に関する構成部品であるファンケーシング１、ベルマウス部６、ファン７、及びモータ８を一式しか備えていない場合を例示したが、これに限定されるものではない。すなわち、上記実施の形態では、筐体１１内に、送風に関する構成部品を一式そろえて構成された送風機が一台だけ配設された例を示しているが、室内機１０は、複数の送風機を有していてもよい。例えば、室内機１０は、筐体１１内の左右方向に、複数の送風機を並べて配設するようにしても、上記同様の効果を得ることができる。また、ファンケーシング１は、室外機として機能する熱源機に設けるようにしてもよく、すなわち、ファンケーシング１は、例えば、熱源機内のファンを収容するファンケーシングとして適用してもよい。 Furthermore, in the said embodiment, although the case where the indoor unit 10 was provided with only one set of the fan casing 1, the bellmouth part 6, the fan 7, and the motor 8 which are the components regarding ventilation, it was limited to this. It is not something. That is, in the above-described embodiment, an example is shown in which only one blower configured with a set of components related to ventilation is arranged in the casing 11, but the indoor unit 10 includes a plurality of blowers. You may have. For example, the indoor unit 10 can obtain the same effect as described above even when a plurality of blowers are arranged side by side in the left-right direction in the housing 11. The fan casing 1 may be provided in a heat source unit that functions as an outdoor unit, that is, the fan casing 1 may be applied as a fan casing that houses a fan in the heat source unit, for example.
　また、第一本体折り曲げ部３ａ及び第一分割折り曲げ部３ｂが吹出口２の軸方向に沿って延びている場合を例示したが、これに限定されるものではない。すなわち、第一本体折り曲げ部３ａ及び第一分割折り曲げ部３ｂは、ケーシング本体部１ａにケーシング分割部１ｂを当接させたときに、第一本体折り曲げ部３ａと第一分割折り曲げ部３ｂとが平行となる限り、任意の方向に突出させることができる。同様に、第二本体折り曲げ部５ａ及び第二分割折り曲げ部５ｂは、ケーシング本体部１ａにケーシング分割部１ｂを当接させたときに、第二本体折り曲げ部５ａと第二分割折り曲げ部５ｂとが平行となる限り、任意の方向に突出させることができる。もっとも、ケーシング本体部１ａとケーシング分割部１ｂとは、ネジ３ｓ及びネジ５ｓによって固定されるため、第一本体折り曲げ部３ａ及び第一分割折り曲げ部３ｂと、第二本体折り曲げ部５ａ及び第二分割折り曲げ部５ｂとは、ケーシング本体部１ａ及びケーシング分割部１ｂの外周に対して垂直に突起させるようにするとよい。 Moreover, although the case where the 1st main body bending part 3a and the 1st division | segmentation bending part 3b were extended along the axial direction of the blower outlet 2 was illustrated, it is not limited to this. That is, in the first main body bent portion 3a and the first divided bent portion 3b, the first main body bent portion 3a and the first divided bent portion 3b are parallel when the casing divided portion 1b is brought into contact with the casing main body portion 1a. As long as it is, it can project in any direction. Similarly, the second main body bent portion 5a and the second divided bent portion 5b have the second main body bent portion 5a and the second divided bent portion 5b when the casing divided portion 1b is brought into contact with the casing main body portion 1a. As long as it is parallel, it can project in any direction. However, since the casing main body 1a and the casing division 1b are fixed by screws 3s and screws 5s, the first main body bending 3a and the first divided bending 3b, the second main body bending 5a and the second division. The bent portion 5b is preferably protruded perpendicular to the outer periphery of the casing main body portion 1a and the casing dividing portion 1b.
　１　ファンケーシング、１ａ　ケーシング本体部、１ｂ　ケーシング分割部、１ｆ　固定部材、２　吹出口、３　第一接合部、３ａ　第一本体折り曲げ部、３ｂ　第一分割折り曲げ部、３ｃ　係止部、３ｈ、５ｈ、６ｈ　ネジ穴、３ｓ、５ｓ、６ｓ　ネジ、４　吸込口、４ａ　第一仮想半径、４ｂ　第二仮想半径、５　第二接合部、５ａ　第二本体折り曲げ部、５ｂ　第二分割折り曲げ部、５ｃ　差込部、６　ベルマウス部、６ａ　開口部、６ｂ　内径部、６ｃ　平面部、６ｄ　開口径、６ｅ　外径、７　ファン、７ａ　羽根、８　モータ、１０　室内機、１１　筐体、１２　吹出部、１３　前側吸込部、１４　後側吸込部、１５　吹出フランジ、１６　ドレン受け、１７　ドレン導水部、１８　ドレンパン、１８ａ　ドレン口、１９　天パネル、２０　前側フレーム、２１　後側フレーム、２２　モータ取付板、２３　モータ台、２４　右側面パネル、２５　左側面パネル、３０　熱交換器。 1 fan casing, 1a casing main body, 1b casing divided portion, 1f fixing member, 2 outlet, 3 first joint, 3a first main body bent portion, 3b first divided bent portion, 3c locking portion, 3h, 5h 6h Screw hole, 3s, 5s, 6s screw, 4 suction port, 4a first virtual radius, 4b second virtual radius, 5 second joint, 5a second body folded part, 5b second divided folded part, 5c difference Insert part, 6 bell mouth part, 6a opening part, 6b inner diameter part, 6c flat surface part, 6d opening diameter, 6e outer diameter, 7 fan, 7a blade, 8 motor, 10 indoor unit, 11 housing, 12 outlet part, 13 Front suction part, 14 Rear suction part, 15 outlet flange, 16 drain receiver, 17 drain water transfer part, 18 drain pan, 18a drain port, 19 sky Nell, 20 front frame, 21 the rear frame, 22 a motor mounting plate 23 motor base, 24 a right side panel, 25 left side panel, 30 a heat exchanger.

Claims (7)

  1. 　ファンと、
    　前記ファンを収容し、空気を給気する吸込口及び前記吸込口から給気された前記空気を吹き出す吹出口が形成されたファンケーシングと、
    　前記ファンによって流動する前記空気が通過する熱交換器と、
    　前記空気の吹出部及び吸込部が形成され、前記ファンを収容した前記ファンケーシング及び前記熱交換器が内部に設けられた筐体と、
    を有し、
    　前記ファンケーシングは、
    　前記筐体に固定されるケーシング本体部と、
    　前記ケーシング本体部に固定されるケーシング分割部と、
    　前記ケーシング本体部及び前記ケーシング分割部によって形成される前記吸込口に配設された一体成形品であるベルマウス部と、を有する空気調和装置。     With fans,
    A fan casing in which the fan is housed and an air inlet for supplying air and an air outlet for blowing out the air supplied from the air inlet;
    A heat exchanger through which the air flowing by the fan passes,
    A housing in which the air blowing part and the suction part are formed, the fan casing containing the fan and the heat exchanger are provided inside;
    Have
    The fan casing is
    A casing body fixed to the housing;
    A casing division part fixed to the casing body part;
    An air conditioner comprising: a bell mouth portion which is an integrally molded product disposed in the suction port formed by the casing main body portion and the casing dividing portion.
  2. 　前記ファンの外径は、前記吸込口の径よりも小さい請求項１に記載の空気調和装置。 The air conditioner according to claim 1, wherein an outer diameter of the fan is smaller than a diameter of the suction port.
  3. 　前記ベルマウス部の開口径は、前記ファンの外径よりも小さい請求項１又は２に記載の空気調和装置。 The air conditioning apparatus according to claim 1 or 2, wherein an opening diameter of the bell mouth portion is smaller than an outer diameter of the fan.
  4. 　前記ベルマウス部は、前記ケーシング本体部と前記ケーシング分割部との接合面の少なくとも一部を塞ぐものである請求項１～３の何れか一項に記載の空気調和装置。 The air conditioning apparatus according to any one of claims 1 to 3, wherein the bell mouth portion closes at least a part of a joint surface between the casing main body portion and the casing division portion.
  5. 　前記ケーシング本体部と前記ケーシング分割部とは、二箇所で接合されており、
    　前記ベルマウス部の外径は、前記ケーシング本体部と前記ケーシング分割部との接合部のうちの少なくとも一方を基準とした外径以上の長さである請求項１～４の何れか一項に記載の空気調和装置。     The casing body part and the casing division part are joined at two locations,
    The outer diameter of the bell mouth portion is a length equal to or greater than the outer diameter based on at least one of the joint portions of the casing main body portion and the casing split portion. The air conditioning apparatus described.
  6. 　前記ケーシング分割部は、前記ケーシング本体部との接合部に、前記ケーシング本体部に向かって延び、前記ケーシング本体部の内面に接する差込部を有する請求項１～５の何れか一項に記載の空気調和装置。 6. The casing dividing portion according to claim 1, further comprising an insertion portion that extends toward the casing main body and is in contact with an inner surface of the casing main body at a joint with the casing main body. Air conditioner.
  7. 　前記ケーシング分割部は、
    　上端部にフランジ状の折り曲げ部を有すると共に、
    　前記折り曲げ部の上端部から前記ケーシング本体部に向かって延びる係止部を有する請求項１～６の何れか一項に記載の空気調和装置。     The casing dividing part is
    While having a flange-like bent part at the upper end,
    The air conditioner according to any one of claims 1 to 6, further comprising a locking portion extending from an upper end portion of the bent portion toward the casing main body portion.
PCT/JP2016/052876 2016-02-01 2016-02-01 Air-conditioner WO2017134720A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2022029891A1 (en) * 2020-08-04 2022-02-10
WO2023148864A1 (en) * 2022-02-03 2023-08-10 三菱電機株式会社 Air conditioner

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102600958B1 (en) * 2018-09-21 2023-11-14 삼성전자주식회사 Air Conditioner

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5823064B2 (en) * 1978-03-17 1983-05-12 日本油脂株式会社 concentrated cream
JPH11325499A (en) * 1998-05-20 1999-11-26 Fujitsu General Ltd Fan casing of air conditioner
JP2008169793A (en) * 2007-01-15 2008-07-24 Matsushita Electric Ind Co Ltd Centrifugal blower
JP2013096617A (en) * 2011-10-31 2013-05-20 Hitachi Appliances Inc Air conditioner and method of dismantling ventilation mechanism in air conditioner

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150219348A1 (en) * 2013-09-09 2015-08-06 Mitsubishi Electric Corporation Air conditioning apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5823064B2 (en) * 1978-03-17 1983-05-12 日本油脂株式会社 concentrated cream
JPH11325499A (en) * 1998-05-20 1999-11-26 Fujitsu General Ltd Fan casing of air conditioner
JP2008169793A (en) * 2007-01-15 2008-07-24 Matsushita Electric Ind Co Ltd Centrifugal blower
JP2013096617A (en) * 2011-10-31 2013-05-20 Hitachi Appliances Inc Air conditioner and method of dismantling ventilation mechanism in air conditioner

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2022029891A1 (en) * 2020-08-04 2022-02-10
WO2022029891A1 (en) * 2020-08-04 2022-02-10 三菱電機株式会社 Air conditioner
JP7459258B2 (en) 2020-08-04 2024-04-01 三菱電機株式会社 air conditioner
WO2023148864A1 (en) * 2022-02-03 2023-08-10 三菱電機株式会社 Air conditioner

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