JP3991575B2 - Circulating blower - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to an illuminator-coupled circulation blower in which a circulation blower can be attached to a hooking ceiling provided on a ceiling surface, and a ceiling illuminator can be attached to the lower surface thereof.
[0002]
[Prior art]
Prior art
  There are two types of lighting fixtures: a ceiling type that attaches directly to the ceiling surface and a pendant type that suspends the lighting fixture from the ceiling surface using a power cord, wire, chain, etc. In many cases, a female tool called a hanging ceiling body is coupled by hooking and locking a male tool called a hanging sealing cap provided on the lighting fixture side. Also, there are many methods in which a ring-shaped fixing bracket is screwed to the ceiling surface of the outer periphery of the hanging ceiling main body, the fixing bracket and the main body are screw-fixed, and the attachment is further strengthened.
[0003]
  In addition, since the luminaire is provided almost in the center of the room, there are many inventions that improve the circulation efficiency by integrating the luminaire and the air purifier so that the air purifier is positioned at the center of the room.
  Japanese Patent Application Laid-Open No. 60-250504, “Lighting Device with Air Purifier”, Japanese Patent Application Laid-Open No. 63-294920, “Air Purifier with Lighting Bar” No. 10-241455 “Illumination device with air purifying function”, No. 11-337137 “Ceiling mounted air purifier”, No. 57-119413 “Illuminator with air purifier”, No. Aki No. 60-42211 “Lighting fixture with air purifier”, Japanese Utility Model Laid-Open No. 2-336122 “Lighting fixture with air purifier”, Japanese Utility Model Laid-Open No. 5-52638 “Attachment device for air cleaner”.
[0004]
  The invention in which a lighting fixture and an air purifier are integrated with a pendant type lighting fixture includes Japanese Patent Laid-Open No. 60-250503, “Lighting fixture with air purifier”, Japanese Patent Laid-Open No. 61-119939, “Air purifier”, Japanese Utility Model Laid-Open No. 63-242312, “Air Purifier”, Japanese Patent Laid-Open No. 9-282934, “Lighting Equipment with Air Cleaner”, Japanese Patent Laid-Open No. 10-38361, “Air Cleaner with Ceiling Hanging Lighting Device”, Japanese Patent Laid-Open No. 10-311573 No. "Air Purifier", Japanese Patent Application Laid-Open No. 11-162249, "Lighting Equipment with Air Purifying Function", Japanese Utility Model Application No. 60-40914 "Lighting Equipment with Air Purifier", Japanese Utility Model Application Publication No. 60-187417, "Suspended Lighting" , No. 61-118616 “Air Purifier”, No. 62-97422 “Hanging Air Purifier”, No. 63-157227 “Air Purifier”, No. 1-7709 No. 77, No. 7710, No. 7711 “Lighting fixture with air purifying function”, No. 1-13621 “Lighting fixture with air purifying device”.
[0005]
  Among the above inventions, representative examples of an air purifier provided between a ceiling surface and a lighting fixture include Japanese Patent Laid-Open No. 63-242312 “Air Purifier”, Japanese Utility Model Laid-Open No. 62-97422 “Hanging Type”. “Air Purifier”, Japanese Utility Model Publication No. Sho 63-157227 “Air Purifier”, Japanese Patent Laid-Open No. 11-337137 “Ceiling Mounted Air Purifier”, and other air purifiers, Japanese Patent Laid-Open No. 2000-081232, “Ceiling Mounted Air” There is a "cleaner".
[0006]
Prior art 2.
  As is clear from the above prior art, many air purifiers integrally formed with a lighting fixture have been proposed, but conventionally, since they are fixed integrally, the mounting structure is limited to only one, There are many things that did not have sex. That is, when installing in a place where there is a lighting fixture, it is necessary to discard the hand-held illuminator and purchase both formed ones together, resulting in great waste. For this reason, there has been proposed one in which an air cleaner is provided between a ceiling surface and a lighting fixture, such as Japanese Patent Application Laid-Open No. Sho 63-242312 “Air Cleaner”.
[0007]
  The contents of Japanese Patent Laid-Open No. Sho 63-242312 will be described with reference to FIG.
  FIG. 13 is a perspective view showing a conventional air cleaner disclosed in Japanese Patent Application Laid-Open No. 63-242312. In the figure, the circulation fan main body 15 incorporates a circulation fan and a purification filter as air purification means. Reference numeral 26 denotes a blower side electric wire having a hooking sealing cap 3 attached to the upper part of the circulating blower main body 15, and reference numeral 2 denotes a hooking sealing main body electrically connected to the hooking sealing cap 3 at the tip of the blower side electric wire 26. Reference numeral 1 denotes a ceiling, and the hook ceiling body 2 is embedded in the ceiling 1.
  Reference numeral 7 denotes an illuminator main body, which may be hand-held (existing), and includes a lighting fixture side electric wire 27 having a hooking sealing cap 24.
  21 is a suction port, 22 is a blower outlet.
[0008]
  Describing the operation, the dirty air flows into the circulation fan main body 15 from the suction port 21 by the air flow generated by the circulation fan, and the purified air passing through the air purifying means passes through the outlet 22 from the circulation blower main body. 15 is discharged to the outside.
  In general, the illuminator main body 7 is located in the middle of the room and immediately above the gathering portion of the person, close to the source of contamination such as cigarette smoke and odor, and the hook sealing cap 24 of the illuminator main body 7 is connected to the hooking sealing main body 23. The air cleaner is positioned directly above the illuminator body 7 by the blower side electric wire 26 and the luminaire side electric wire 27 by attaching and connecting the hook sealing cap 3 to the hook ceiling body 2 of the ceiling 1. It has high purification efficiency and can be installed at a position very close to the pollution source. Moreover, because you can use your own lighting fixtures, there is no need to purchase a new air cleaner with lighting fixtures, and you can freely install and remove lighting fixtures and air cleaners. It can be easily used in other rooms.
[0009]
2. Prior art
  Japanese Utility Model Publication No. 63-157227 “Air Cleaner” shows a mounting structure similar to the above.
  FIG. 14 is a sectional view showing a conventional air cleaner disclosed in Japanese Utility Model Laid-Open No. 63-157227. In the figure, an air purifier is configured by directly attaching and fixing the hooking sealing cap 3 to the upper surface of the circulating blower main body 15. The hook sealing cap 3 is configured to be detachable from a hook ceiling body 2 for a lighting fixture provided on the ceiling 1 of the room. By attaching the hook sealing cap 3 to the hook ceiling body 2, the air is removed. When the installation of the purifier is completed and the hooking sealing cap 3 is detached from the hooking sealing body 2, the removal of the air purifier from the installation location is completed.
[0010]
  Therefore, the air purifier can be installed very easily and can be replaced with other models without any special work. In addition, when performing the maintenance work, the air cleaner can be easily removed from the installation location, thereby enabling a reliable and easy work. In addition, this air purifier is located along the ceiling 1 in the installed state by attaching the hooking sealing cap 3 to the hooking sealing body 2 of the ceiling 1, and from the floor (not shown) of the room. By sufficiently separating upward, that is, by effectively using a space near the ceiling that is relatively rarely used, the effective floor area of the room is prevented from being reduced.
[0011]
  A pair of fans 20 and 20 are provided inside the purifier main body 1. A drive motor 33 is linked to one fan 20, and the two fans 20, 20 are linked by a hooked belt (not shown). The pair of fans 20, 20 are connected to the drive motor 33. Is configured to rotate in the reverse direction. Also, below these fans 20, 20, an air purifying filter containing activated carbon and having a function of deodorizing and removing dust is provided to the circulating fan main body 15 so as to be freely inserted and removed by sliding from the lateral direction. Yes.
[0012]
  The circulation blower main body 15 has a lower surface opened to the outside by a suction port 21 below the filter, and side surfaces of the pair of fans 20 and 20 opened to the outside by a blowout port 22 through a louver. ing. Then, with the rotation of the pair of fans 20, 20, the indoor air passes through a side louver after the filter is purified by the filter through the suction port 21 and purified by the filter, and then sucked into the circulation blower main body 15. It is configured to be blown out into the room from the blowout port 22 and returned. Further, as described above, since the circulation blower main body 15 is installed near the ceiling surface, it is caused to return to the room while purifying warm air staying near the upper part of the room, particularly during heating in winter. Thus, the efficiency of heating can be increased.
[0013]
  Further, on the lower surface of the circulation blower main body 15, a hanging ceiling main body 23 for a lighting fixture of the same type as that provided on the ceiling 1 of the room is provided. A hook ceiling cap 24 connected to the illuminator main body 7 via the luminaire-side electric wire 27 is attached to the hook ceiling main body 23, and the illuminator main body 7 is suspended and supported. The hooking sealing body 23 is electrically connected to the hooking sealing cap 3 provided on the upper surface of the circulation fan main body 15 together with the control device 116 for controlling the operation of the drive motor 33 described above in the circulation fan main body 15. It is connected to the.
[0014]
  Therefore, the circulation blower main body 15 is attached to the ceiling ceiling lighting body 2 for the lighting fixture of the ceiling 1 by the hanging ceiling cap 3, thereby supplying power to the circulation blower main body 15 and the hooking sealing main body 23 of the circulation blower main body 15. Electrical connection for supplying power to the illuminator main body 7 supported by being suspended from is also performed at the same time.
  As a result, the installation work is simplified and it is possible to avoid damaging the aesthetics of the room by being installed between the wall and the outlet with the electrical connection cords exposed to the outside. I can do it.
  On the other hand, although not shown in the figure, when the switch provided on the wall of the chamber is turned on and off, the energization state and the energization are performed from the hanging sealing body 2 provided on the ceiling 1 to the hanging sealing cap 3 of the air purifier. Can be switched to a state of shutting off. In the energized state, the air cleaner is activated and the illuminator body 7 is turned on.
[0015]
  Thus, in the present invention, the fan inlet 21 faces the lower surface of the circulating blower main body 15, that is, the surface to which the illuminator main body 7 is attached. In the attached type, the suction port 21 is blocked by the illuminator body, or the fans 20 and 20 are axially horizontal, so the thickness dimension of the circulating blower body 15 is less than the outer diameter dimension of the fans 20 and 20. However, it is difficult to reduce the thickness.
[0016]
Conventional technology 4.
  FIG. 15 is a cross-sectional view showing a conventional ceiling-mounted air cleaner disclosed in Japanese Patent Laid-Open No. 11-337137. In the figure, a ceiling-mounted air cleaner that can be easily fixed to the hook ceiling of a lighting fixture is provided. When the circulation blower main body 15 is attached to the ceiling 1, first, an attachment fitting 135 that is an attachment cover is fixed to the ceiling 1. Next, the circulating blower main body 15 is lifted, and the hooking sealing cap integrated with the hooking metal fitting 111 of the circulating blower main body 15 on the hooking sealing main body 2 protruding through the through hole formed in the middle of the mounting bracket 135. 3 is in a state of preparation for engagement.
[0017]
  At this time, the hook fixing metal fittings 4 disposed symmetrically on both sides of the hook sealing body 2 and the attachment metal fittings 35 provided on both sides of the end of the hook metal fitting 111 of the circulation fan main body 15 are attached to the metal fittings. 35 is positioned so that it can be inserted into the fixing bracket 4. Next, by rotating the circulation blower main body 15 clockwise, the hooking sealing cap 3 is completely engaged with the hooking sealing main body 2, and the power supply is connected. At the same time, the hooking fixing bracket 4 and the mounting bracket 35 of the circulating fan main body 15 are inserted and engaged with each other, and the circulating blower main body 15 is firmly attached to the ceiling 1.
[0018]
  As described above, in the present invention, with the mounting bracket 135 as a mounting cover fixed to the ceiling 1, the circulating fan main body 15 can be performed by a method substantially similar to the mounting of a conventional ceiling illuminator. However, in this mounting method, since the joint portion between the outer peripheral portion 108 of the circulation fan main body 15 and the mounting bracket 135 of the circulation blower main body 15 is not securely adhered, there is a concern about dirt on the ceiling surface due to air leakage from this portion. Is done.
[0019]
  Further, since the drive motor 33 is an outer rotor type and is fixed to the central shaft 115 of the circulating blower main body 15, a specially designed one is required instead of a general-purpose motor, and it is expensive when the production quantity is small. End up. Furthermore, since the connecting portion of the hook sealing body 2 and the hook sealing cap 3 in the electrical connection portion is not visible, it cannot be confirmed whether the electrical connection is reliable, and the relative positional relationship between the electrical connection bracket portion and the body mounting bracket portion. Becomes important. Moreover, the rotation direction of the circulation fan main body 15 cannot be adjusted in the attached state.
[0020]
Prior art 5.
  FIG. 16 shows a conventional ceiling-mounted air cleaner described in Japanese Patent Application Laid-Open No. 2000-081232. This patent accompanies the improvement of Japanese Patent Application Laid-Open No. 11-337137, and can rotate the main body with the air cleaner main body mounted on the ceiling to arbitrarily change the air outlet direction.
  The mounting bracket 35 of the circulation blower main body 15 and the hooking sealing cap 3 are engaged with the fixing bracket 4 fixed with the ceiling screws, and the power supply is connected and the drive motor 33 is mounted on the ceiling 1. At this time, the outer edge portion formed on the outer periphery of the fixing metal fitting 4 is engaged with the inner edge surface of the cover 103, and a recessed groove is formed along the inner side of the cover 103, leaving a part, and provided on the outer edge portion of the fixing metal fitting 4. The projecting projection engages with the recess groove, and the cover is slidably rotated on the rail.
[0021]
  With the cover 103 sandwiched between the ceiling 1 and the drive motor 33 and the fan blade 107, the fan cover on which the filter and the substrate are arranged is lifted so that the bolt 118 penetrates the fan cover. After positioning, the lower end portion of the central shaft 115 of the air cleaner passing through the circulation blower main body 15 and the fan cover are rotatably attached by the fastening member 116.
  The present invention solves the disadvantage that the rotation direction of the circulating blower main body 15 cannot be adjusted in the attached state of FIG. 15, and can rotate the main body to arbitrarily change the air outlet direction. Contamination of the ceiling surface due to air leakage at the joint between the air cleaner and the attachment cover 103 of the air cleaner, and further, the joint between the hook sealing body 2 and the hook sealing cap 3 at the electrical connection portion cannot be confirmed.
[0022]
Prior art 6.
  FIG. 17 is a cross-sectional view showing a conventional circulator disclosed in Japanese Patent Laid-Open No. 2000-74431, and shows a blower technique of a circulator provided with a centrifugal diffuser air passage using a propeller fan.
  In FIG. 17, a straight-pipe cylindrical circulation fan body in which one end of the ceiling 1 is the suction side and a suction port 21 is opened in the room in a direction perpendicular to the ceiling 1, and the other end is opened to the ceiling 1 as the blowout port 22. 15 includes an outer shell supported by the mounting legs 105. On the suction side of the circulation fan main body 15, a decorative grill 127 that surrounds the suction port 21 and covers the indoor side of the circulation blower main body 15 is detachably mounted.
[0023]
  The decorative grille 127 has a suction air passage that allows the indoor side to communicate with the suction port 21 of the circulation blower main body 15 and has a substantial suction structure of the circulator. A bell mouth 128 that squeezes the inside of the circulation blower main body 15 with a gentle curved surface is integrally formed at the outlet 22 of the circulation blower main body 15, and an opening on the discharge side of the circulation blower main body 15 is formed by the peripheral edge of the bell mouth 128. The part is enclosed. The outlet 22 of the circulation fan main body 15 surrounded by the mouth of the bell mouth 128 is opposed to the center of the guide plate 109 formed on the indoor side of the mounting bracket 35 with a gap. The guide plate 109 is parallel to the ceiling 1 and is formed in a disk shape having a larger flat area than the opening of the circulation fan main body 15, and a mounting flange 110 for mounting the mounting bracket 35 to the ceiling 1 on the outer periphery thereof. Is provided.
[0024]
  A centrifugal diffuser that is open to the outside over the entire circumference communicating with the opening of the circulation blower main body 15 in the radial direction between the indoor side surface of the guide plate 109 and the outlet edge of the bell mouth 128 opposed thereto. An air passage 121 is configured. A peripheral side wall is formed on the peripheral edge of the guide plate 109 so as to rise to the outdoor side. A protruding corner portion of the peripheral side wall and the peripheral end of the guide plate 109 is finished in an R shape, and is centrifuged by the mouth portion of the bell mouth 128. An air outlet 112 that is an open end to the outside of the diffuser-air passage 121 is configured in the radial direction.
[0025]
  A motor mounting hole is formed in the center portion of the guide plate 109, and the drive motor 33 is inserted into the motor mounting hole so that the rotation shaft enters the center line in the circulation fan main body 15, and is fixed by screws. Yes. A propeller-type impeller 114 that rotates at a position surrounded by the bell mouth 128 of the circulation blower main body 15 and forms an air flow from the suction port 21 of the circulation blower main body 15 toward the outlet 22 is formed on the rotation shaft of the drive motor 33. It is detachably attached.
[0026]
  As described above, this circulator has a compact structure in which a propeller-type blower is assembled on the outer periphery of the circulation blower main body 15, the mounting bracket 35, and the guide plate 109. For example, the mounting bracket 35 is attached to the center ceiling surface of the room. The flange 110 can be easily attached by screwing. When the ventilation opening 125 of the guide plate 109 of the circulator attached in this way is closed by the shutter 137 and the centrifugal diffuser-air passage 121 is fully opened and the drive motor 33 is energized, the air in the center of the room becomes the decorative grille. 127 is sucked into the circulation fan main body 15 in a substantially vertical direction and blown out from the other end of the circulation blower main body 15.
  The blown airflow is smoothly directed in the radial direction by the guide plate 109 and the bell mouth 128, guided by the centrifugal diffuser-air passage 121, and blown out along the ceiling surface. The airflow blown out along the ceiling surface hits the inner wall surface, faces the floor surface along the inner wall surface, and in the form of being distributed to the indoor side along the way, toward the ceiling side. At this time, the air on the floor side near the inner wall surface is also attracted and heads toward the ceiling.
[0027]
  In this way, the airflow is not directly applied to the occupants, and the air in the entire room can be circulated smoothly and effectively without stirring. Since it is a propeller type impeller 114, the air volume can be increased, and since the blown airflow is smoothly guided to the centrifugal diffuser-airway 121 and blown out along the ceiling surface, there is little pressure loss and little noise. By adjusting the opening area of the centrifugal diffuser-air passage 121 using the shutter 118, it is possible to increase the wind speed of the blown airflow. Circulation can be realized.
[0028]
Prior art 7.
  FIG. 18 is a cross-sectional view showing an example of a conventional ceiling lighting fixture. In the figure, 1 is a ceiling, and 2 is a female tool connected to the indoor electrical wiring 25 in the hanging ceiling main body, and is fixed to the ceiling surface with unillustrated wood screws. Reference numeral 3 denotes a male tool provided on the side of the lighting fixture by a hooking ceiling cap, which is coupled by hooking and engaging with the hooking ceiling main body, and is supplied with power to the inside of the lighting fixture by the lighting fixture side electric wire 27. Here, the hook sealing body 2 and the hook sealing cap 3 are engaged with each other by two metal fittings protruding from the hook sealing cap 3 as is well known. This is a structure that can be inserted into a groove and engaged by rotating it with the joint surfaces of the two being in close contact with each other.
[0029]
  Reference numeral 4 denotes a main body fixing bracket which is located on the outer peripheral portion of the hanging ceiling main body and is fixed to the ceiling 1 with wood screws 5 and has a screw hole portion to which the main body fixing screw 6 is coupled. The main body fixing screw 6 fixes the illuminator main body 7 to the main body fixing bracket 4 fixed to the ceiling 1 at a mounting hole 7 b provided in the disk-shaped illuminator main body 7. Reference numeral 8 denotes a circuit cover that is dish-shaped and serves to cover the inverter circuit 10 housed in the illuminator body 7, switches not shown, the socket portion of the bean ball 14, electrical wiring, and the like, and the circular fluorescent tubes 12, 13. Is fixed via a fluorescent tube fixing bracket or the like not shown, and is fixed to the illuminator body 7 by a mounting screw 29. As for the circular fluorescent tube, the small-diameter circular fluorescent tube 13 located on the inner side consumes less power, and the large-diameter circular fluorescent tube 12 located on the outer side consumes more power and is brighter. It constitutes a bright illuminator.
[0030]
  Reference numeral 9 is a circuit plate made of an aluminum plate or the like having a good thermal conductivity and having an inverter circuit 10 mounted thereon, which serves to dissipate heat generated in the inverter circuit and improve its life. Reference numeral 11 denotes a globe made of a translucent resin or the like, and is detachably attached to an engaging portion 7a provided on the outer peripheral portion of the illuminator body 7. When the globe 11 becomes dirty or when the circular fluorescent tube 12 is replaced, the globe 11 can be easily removed from the illuminator body 7. At this time, the circuit cover 8 covers the charging part of the electrical parts such as the inverter circuit 10. Therefore, there is no danger that the user touches the live part.
[0031]
[Problems to be solved by the invention]
  Since the conventional circulation blower and the like are configured as described above, there are still problems in thinning and the degree of freedom in selecting lighting fixtures.
  The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain a circulation fan that can be thinned and has a high degree of freedom in selecting a lighting fixture.
[0032]
[Means for Solving the Problems]
  The circulation blower according to the present invention includes a thin cylindrical main body, a rotation axis direction provided inside the main body, the axial direction of the main body being coincident with the main body bottom side, and the fan blowout port on the side surface of the main body. A centrifugal fan positioned to the side, a recess formed in the approximate center of the top surface of the main body to store the hooking ceiling, a mounting portion provided on the bottom surface of the main body for hooking and engaging the illuminator, and formed on the side surface of the main body. A blower outlet and a suction port, and the blower outlet is formed in approximately 1/4 of the side surface of the main body.,
The air volume of the centrifugal fan is 160m ^Three / H, the blowing air speed at the outlet is 3 m / s or more, or the product of the air volume and the blowing air speed is 0.2 m ^Four / S ² Or moreIs.
[0033]
  In addition, an inclined portion that is obliquely downward toward the blowing direction is formed on the top surface portion of the main body located at the upper portion of the outlet, and a protrusion is formed at the tip of the inclined portion.
[0034]
  Further, a wind direction plate in the vertical direction or the horizontal direction is provided at the air outlet.
[0035]
  Further, an engagement member that is engaged with the hook ceiling is provided on the top surface, an attachment member that is provided with an attachment portion on which the illuminator is hooked and engaged on the bottom surface, a blower fixed to the attachment member, It houses the blower blades of the blower, and has a main body with a suction port and one outlet formed on the side.,
The air volume of the blower is 160m ^Three / H, the blowing air speed at the outlet is 3 m / s or more, or the product of the air volume and the blowing air speed is 0.2 m ^Four / S ² As aboveIt is a thing.
[0036]
  Further, the main body is attached to the attachment member so as to be rotatable in a horizontal plane with respect to the hooking ceiling.
[0037]
  In addition, a recess or a hole in which the hooking ceiling is accommodated is formed in the approximate center of the top surface of the main body.
[0038]
  Further, the main body is resin-molded and the mounting bracket is made of steel.
[0039]
  Also, a blower that sucks in from the lower surface and blows out in the circumferential direction along the ceiling surfaceAnd stores the blower blades of this blower,The circumferential directionOpen toMouth and closureTogaAlternatelyFrom the openingIn two linear directionsThe air from the fan bladesBlow outA main body,The ventilation capacity of the blower is 300m.^ThreeBlowing wind speed over 6m / s at / hOrOrSaidAir volume andSaidThe product of blowing wind speed is 0.5m^Four/ S²That's it.
[0040]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
  FIG. 1 is a side sectional view showing an embodiment of the circulating fan according to the present invention, FIG. 2 is a perspective view thereof, and FIG. 3 is a perspective view with the top surface of the main body removed.
  Portions that are the same as or correspond to those of the conventional technique 7 shown in FIG. 18 are denoted by the same reference numerals, description thereof is omitted, and differences will be described below.
  A circulation blower main body 15 has a cylindrical or polygonal column shape, the top surface 16 of the main body faces the ceiling 1, and the bottom surface 18 of the circulation blower main body faces the illuminator body 7. The circulation blower main body side surface 17 has a blower outlet 22 that extends toward the main body top surface 16 side and extends over almost ¼ of the entire circumference, and a suction port 21 that extends toward the main body bottom surface 18 side and extends over the remaining 3/4. Have.
[0041]
  In the present embodiment, as shown in FIGS. 2 and 3, the external shape of the circulation fan main body 15 is an example of an octagonal column. In addition, the blower outlet 22 is formed in one side of an octagonal prism, the length of the width direction is about 1/4 of a perimeter, and the suction inlet 21 is on the remaining five sides except the blower outlet 22 and the side adjacent to this. As is apparent from the fact that the length in the width direction is approximately 3/4 of the entire circumference, the circulation fan main body 15 is not a regular octagon.
  A bell mouth 19 is provided at approximately the center between the main body top surface 16 and the main body bottom surface 18 so as to divide the circulating blower into two parts in the vertical direction. A drive motor 33 is provided on the main body bottom surface 18 side of the divided space. The motor rotation shaft 33a is fixed to the main body bottom surface 18 with a motor mounting screw 32 with the motor rotation shaft 33a facing the main body top surface 16 side. An air guide 34 is provided between the bell mouth 19 and the top 16 of the main body, and the centrifugal fan 20 is attached to the motor rotating shaft 33a at the boss portion 20a with the suction side facing the bell mouth 19 side. ing. The back side of the centrifugal fan 20, that is, the main plate side has a main plate concave shape 20 b, and the main body top surface 16 side located in the main plate concave portion 20 b similarly has a main body top surface concave portion 16 a.
[0042]
  Reference numeral 2 denotes a hook ceiling body, which is a female tool connected to the indoor electrical wiring 25 and is fixed to the ceiling surface with a wood screw (not shown). Reference numeral 3 denotes a hook sealing cap, which is a male tool provided on the circulation blower main body 15, which is coupled by being hooked on the hook ceiling main body and is supplied with power to the circulation blower main body 15 by the blower side electric wire 26. Here, the hook sealing body 2 and the hook sealing cap 3 are engaged with each other by two metal fittings protruding from the hook sealing cap 3 and being inserted into a groove provided in the hook sealing body 2, as is well known. It is a structure that can be engaged by rotating with both of the joint surfaces in close contact with each other and is very easy and anyone can do.
  A main body mounting hole 16b is provided around the main body top surface recess 16a provided at substantially the center of the main body top surface 16, and is fixed by the main body fixing screw 6.
[0043]
  Reference numeral 4 denotes a main body fixing bracket which is located on the outer peripheral portion of the hooking sealing main body 2 and is fixed to the ceiling 1 with a wood screw 5. There is a department.
  As in the case of the ceiling 1 surface, a hooking sealing main body 23 is provided at a substantially central portion of the main body bottom surface 18, and power is supplied from the circulating fan main body 15 by an electric wire not shown. Reference numeral 24 denotes a hook sealing cap, which is engaged with the hook ceiling body 23 to supply power to the illuminator body through the lighting fixture side electric wire 27.
  Further, a main body fixing bracket 30 similar to the main body fixing bracket 4 is provided on the outer peripheral portion of the hooking sealing main body 23.
  Here, there is a slight gap 28 between the main body bottom surface 18 and the illuminator main body 7 of the illuminator.
[0044]
  Next, the operation will be described. When the drive motor 33 is energized, the centrifugal fan 20 is driven to rotate, whereby the air in the center of the room is sucked into the suction port 21 located above the illuminator body.
  Further, it passes through the suction bell mouth 19 and is sucked and blown out by the centrifugal fan 20, and is guided by the air guide 34 located on the outer peripheral portion thereof and blown out from the blowout port 22. At this time, since the main body top surface 16 portion located at the air outlet 22 portion is provided with the inclined portion 16c and the projection portion 16d at the tip thereof so as to blow obliquely downward, the air blown to the ceiling surface is directed to the ceiling surface. On the other hand, since it is slightly diagonally downward rather than just beside, dirt on the ceiling surface due to blown air can be reduced.
[0045]
  Further, there is a slight gap 28 between the main body bottom surface 18 and the illuminator main body 7, and the main body bottom surface 18 is also provided with a suction opening (not shown). For this reason, room air passes through the back side of the illuminator body 7 facing the gap 28. Naturally, the circuit plate 9 attached to the opposite surface is made of an aluminum plate or the like having a high thermal conductivity, so that the heat generated in the inverter circuit 10 is radiated by the illuminator body 7 via the circuit plate 9. It plays the role of improving the life of the inverter circuit 10.
  In addition, since the air blowing capacity is the lowest air volume and blowing air speed that are most efficient for circulation, the air output is low and the power consumption can be reduced. Is reduced, and the air in the entire room can be circulated smoothly and effectively. Also, the noise of the blower can be kept low, and the blower can be made small. Details will be described later.
[0046]
  In general, the propeller fan is characterized by the same suction direction and blowing direction (straight), and there are obstacles in front of the blade inlet, and the air is sucked only from the outer peripheral side of the propeller fan, that is, the blade When the layout does not allow wind to flow through the central hub, the characteristics deteriorate rapidly. However, in the propeller fan in which the centrifugal diffuser-air path as in the blower form shown in the prior art 7 is formed, the wind direction on the wind blowing side can be changed not in the axial direction but in the radial direction. For this reason, when installing a propeller fan type blower in the space between the ceiling surface and the illuminator main body, the axial direction of the blades is horizontal, and the outer diameter of the blade is larger than the distance between the ceiling surface and the main body of the illuminator. In order to increase the air volume, it is necessary to install a plurality of fans in the horizontal direction.
[0047]
  Further, in the case of a configuration in which the axial direction of the blades is vertical, a space between the ceiling surface and the illuminator becomes large because a suction space is required. On the other hand, the centrifugal fan is characterized by little deterioration in characteristics even when the suction direction and the blowing direction are at right angles and there are obstacles in front of the suction port of the blade. However, when the fan casing is configured with the centrifugal fan blades axially horizontal as in the prior art 3, the dimension in the thickness direction of the circulating fan is equivalent to the height dimension of the fan casing. That is, in such a configuration, in order to reduce the size of the product, it is necessary to rotate the small-diameter blade (blade having a small blade outer diameter) at a high speed, but in this case, the blown air speed becomes too high with respect to the air volume.
[0048]
  In addition, since centrifugal fans are suitable for medium static pressure and medium air flow specifications, static pressure is low in usage methods such as circulating fans, so large fan blades (blade blades) can be used to improve fan efficiency and reduce noise. It is better to rotate the blade having a large outer diameter at a low speed. For this layout, for example, it is better to use a thin (blade with a small blade width) with the blade axial direction vertical, as in prior art 4. For these reasons, the layout of this embodiment is used.
  Here, the space on the back side of the centrifugal fan 20, that is, the portion located in the concave portion 16a of the top surface 16 of the main body, for example, the shape of the main plate of the centrifugal fan is made a throttle shape on the suction side as shown in FIGS. As in this layout, the front face of the suction port of the centrifugal fan is blocked, and there is not much influence on the performance when sucking from the peripheral direction. Further, if the main plate is provided with a plurality of large circular holes as shown in FIG. 3 in the circumferential direction so as to be positioned at the projected portion of the mounting hole 6, the circulation fan main body 15 can be attached by the conventional technique 7. Like the following.
[0049]
  Next, the mounting operation will be described. A hooking sealing body 2 attached to the tip of the indoor electrical wiring 25 is fixed to the ceiling 1 with a wood screw or the like not shown. A main body fixing bracket 4 is fixed to the periphery by a wood screw 5, and a main body fixing screw 6 is screwed to the main body fixing bracket 4. First, loosen the body fixing screw 6. The hooking sealing cap 3 attached to the tip of the blower side electric wire 26 is engaged with the hooking sealing main body 2, and then the concave portion 16 a of the main body top surface 16 is positioned so as to cover the hooking sealing cap 3, and FIG. In FIG. 2, the head portion of the main body fixing screw 6 is passed through the large hole portion of the mounting hole portion 16b provided on the outer peripheral portion of the concave portion 16a, and the main body top surface 16 is centered on the center of the concave portion 16a. That is, when viewed from the top side of the main body, the head portion of the main body fixing screw 6 moves to the small hole portion of the mounting hole portion 16b by rotating to the left side. Since the main body fixing screw 6 is configured to be positioned in a plurality of holes of the main plate, the left main body fixing screw 6 in FIG. 2 can be securely tightened with a screwdriver or the like.
  Further, the right-side main body fixing screw 6 can be screwed by rotating the centrifugal fan 20 by hand from the air outlet so as to be positioned in the hole portion of the main plate. In this way, the circulation fan main body 15 can be easily attached in the same manner as the conventional ceiling-type lighting fixture shown in FIG.
[0050]
  Next, general specifications of the circulation fan in the present embodiment will be described. The centrifugal fan 20 has an outer diameter of φ230, a blade width of 42 mm, a scroll enlargement ratio of 0.10, a scroll width of 62 mm, a fan casing blowing size of 60 mm in the axial direction and 230 mm in the width direction, and a blowing area of 138 cm.²It is.
  Here, the scroll size when the scroll magnification is 0.10 is about □ 300 with respect to the blade outer diameter φ180, and is about 380 in the present embodiment.
The circulation fan body 15 has a processing air volume of 300 m.^Three/ H can be blown at a rotational speed of 760 r / m, and the blowing wind speed at that time is 6 m / s. In addition, processing air volume 200m^ThreeAt / h, the air can be blown at a rotational speed of 507 r / m, and the blown wind speed at that time is 4 m / s. The power consumption is 300 m when the motor is driven by an 8-pole DC brushless motor with a maximum efficiency of about 60%.^Three/ W at 23W, processing air volume 200m^ThreeSince it was about 9 W at / h, the power consumption of the circulating fan is extremely small.
[0051]
Embodiment 2. FIG.
  FIG. 11 is a cross-sectional view showing another embodiment of the circulating fan of the present invention, and FIG. 12 is an exploded perspective view for explaining the configuration of the parts.
  In the figure, reference numeral 40 denotes a resin circulation blower main body, which integrates the main body top surface 16, the main body side surface 17, and the air guide 34 shown in FIG. The shape of the circulation blower main body 40 has a cylindrical shape in the present embodiment.
  Reference numeral 41 denotes a main body mounting bracket, which has a shape covering in a band shape from the top surface to the outer peripheral portion of the circulation fan main body 40, and is made of a steel plate having higher strength and rigidity than the resin of the circulation fan main body 40. Similar to FIG. 2, a concave portion 41a and a main body mounting hole 41b are provided in the central portion of the main body mounting bracket 41 on the top surface 1 side. However, a plurality of body attachment holes 41b are formed in the circumferential direction concentrically with the recess 41a. Moreover, the falling part of the main body mounting bracket 41 covering the outer peripheral part of the circulation fan main body 40 forms a curved surface shape along the outer periphery of the circulation fan main body, and further, a flange 41c is formed toward the center from the tip of the falling part. Is formed.
[0052]
  Reference numeral 42 denotes a suction bell mouth made of a thin steel plate, which corresponds to the suction bell mouth 19 of FIG. 1 and is fixed to the resin blower main body 40 with screws, for example. The suction bell mouth 19 has an outer diameter such that the outer peripheral end thereof is on the flange 41c of the main body mounting bracket 41. Reference numeral 43 denotes a motor mounting bracket, which is made of a steel plate like the main body mounting bracket 41, and a drive motor 33 is fixed by a motor mounting screw 32 at a substantially central portion thereof. In addition, a rising portion is formed at both ends, and the outer edge protrudes further in the centrifugal direction, and the outer edge forms a curved shape along the curved surface of the falling portion of the circulation fan main body 41, and is mounted on the flange portion of the main body mounting bracket 41. The collar part to be placed is formed.
[0053]
  44 is a suction port formed in the rising portion of the motor mounting bracket 43, 45 is a mounting hole for coupling with the suction bell mouth 42 and the circulation fan main body 40 with a screw 46, and this portion is connected to the circulation blower main body 40. Screws are fixed. Further, a main body fixing bracket 30 is attached to the opposite surface of the drive motor 33, and corresponds to the main body bottom surface 18 of FIG. Although the centrifugal fan 20 is attached to the rotating shaft 33a of the drive motor 33, it is omitted in FIG. A hook sealing cap 46 is electrically connected to the circulating blower main body 40 via a detachable connector 47. 48 is a wind direction plate provided in the blower outlet formed in the circulation air blower main body 40, and changes a wind direction up and down, right and left direction.
[0054]
  In the mounting method in the present embodiment, first, the blower main body 40 and the main body mounting bracket 41 are separated. The sealing cap 46 is cut off at the connector 47 and hooked to the hooking sealing body 2 attached to the surface of the ceiling 1. Next, the body mounting bracket 41 is screwed to the body mounting bracket 4 mounted on the ceiling surface of the outer periphery of the hook sealing body 2 with the body fixing screw 6. At this time, the mounting direction is adjusted in advance when the blower main body 40 is coupled using a plurality of mounting holes 41 b provided in the main body mounting bracket 41.
[0055]
  Next, the circulation fan main body 40 is connected to the main body mounting bracket 41. A suction bell mouth 42 and a motor mounting bracket 43 are screwed into the circulation fan main body 40 in advance. The connecting method may be, for example, sliding insertion from the side surface of the body mounting bracket 41, or may be inserted from the lower side by partially deforming the side surface portion of the body mounting bracket 41 using the elasticity of the steel plate. After the insertion, the lower end of the outer periphery of the circulation fan main body 40, the outer peripheral end of the suction bell mouth 42, and the flange of the motor mounting bracket 43 are placed on the flange 41 c of the body mounting bracket 41. Note that the flange portion of the motor mounting bracket 43 is in direct contact with the flange portion 41 c of the main body mounting bracket 41. After placement, the power is connected at the connector 47.
[0056]
  Here, since the shape of the circulation blower main body 40 has a columnar shape, the circulation blower main body 40 can be rotated in the circumferential direction while being connected to the main body mounting bracket 41. By rotating the circulation blower main body 40 within a range of about 15 ° from the installed state, the blowing direction from the outlet of the circulation blower main body 40 can be adjusted. Note that the circumferential width of the flange 41c in the body mounting bracket 41 is wider than the circumferential width of the flange in the motor mounting bracket 43 by an allowable rotation range, and the circulating blower body 40 is rotated. But don't worry about falling. The wind direction plate 48 provided at the outlet of the circulation blower main body 40 adjusts the blowing direction, and at the same time plays the role of rectifying the flow of the blown air from the centrifugal fan and reaching far.
  The method of coupling the circulation fan main body 15 and the illuminator main body 7 is the same as that in the first embodiment, and the description thereof is omitted.
[0057]
  As described above, according to the present embodiment, the blower main body is made of resin that is easy to mold at low cost, and the belt-like mounting bracket that covers the outer peripheral portion of the main body is made of a strong steel plate. Even heavy objects can be attached, the weight of the circulating blower itself can be reduced, and air leakage from the blower body can be easily taken. Moreover, since the strip | belt-shaped attachment metal fitting which covers the outer peripheral part of a main body was rotatably attached to the circumferential direction of the main body, the blowing direction can be changed easily in the state which attached the air blower.
  Even when the belt-like mounting bracket that covers the outer periphery of the circulating fan main body is not rotatable in the circumferential direction of the main body, a large number of mounting holes provided in the mounting bracket are provided in the rotational direction so that the blower body blows. By roughly installing the outlet and adjusting the vertical and horizontal wind direction plates provided at the main body outlet, the outlet direction can be freely set and the feeling of blowing can be reduced.
[0058]
Embodiment 3 FIG.
  In the conventional invention, there are many related to the air purifier and few related to the circulation. In circulation, a fan is operated, or a fan called a ceiling fan with a blade diameter of about 1 m in diameter is operated. It is not known quantitatively whether there is a circulation effect. Therefore, the circulation effect will be described based on experimental results conducted by the inventors of the present invention, and an optimum blower will be proposed.
[0059]
  FIG. 4 is a conceptual diagram showing the environment of the experimental apparatus. In the figure, an indoor room of 8 tatami mats (3.6 m × 3.6 m × height 2.4 m) as shown in FIG. 4 is installed inside the outdoor part cooled to 2 ° C. The air conditioner was installed almost at the center of one wall of the room, and the circulation fan was installed almost at the center of the ceiling of the room. The air conditioner was heated for winter. The set temperature of the air conditioner was 21 ° C. Inside the room, temperature sensors were installed at intervals of 400 mm in the vertical and horizontal directions, and the room was divided into a total of 486 points of 9 points × 9 points × upper and lower 6 points, and the temperature distribution was measured in the latest measurement room.
In the case of two-way blowout, the blowout direction of the circulator is perpendicular to the blowout direction of the air conditioner.
In the case of one-way blowing, the circulator blowing direction was set to the same direction as the direction perpendicular to the blowing direction of the air conditioner.
The vertical temperature difference in the room was represented by the difference in room temperature between the point 5 cm above the floor and the point 200 cm above the floor.
[0060]
  Next, the general specifications of the circulation blower of this experiment will be described. In the case of one-way blowing, the circulation blower described in Embodiment 1 is used.
  Explaining the general specifications of the circulation blower of this experiment in the case of all-round blowing and two-way blowing, in FIG. 17, the outer diameter dimension of the propeller fan 114 is φ180, the number of blades is three, and the maximum axial dimension of the blade blades is The inner diameter of the bell mouth 108 is φ188, the outer diameter of the guide plate 109 is φ350 when the vertical width is 30 mm, and the outlet is gradually narrowed when the vertical width is 20 mm or 15 mm. The upper and lower width dimensions of the guide plate 109 up to the outer diameter dimension φ260 were 30 mm, the outer peripheral portion was umbrella-shaped, the outer diameter was φ400, and the upper and lower width dimensions were 20 mm and 15 mm at the outer peripheral portion.
[0061]
  When the power of the drive motor is constant, the circulating blower 100 blows out in the circumferential direction, and the vertical width of the outlet is 30 mm.^Three/ H can be blown at a rotational speed of 1150 r / m, and the blowing wind speed at that time is 2.5 m / s.
When the vertical width of the outlet is 20mm with all-round blowout, the processing air volume is 300m^Three/ H can be blown at a rotation speed of 1152 r / m, and the blown wind speed at that time is 3.3 m / s.
  When the vertical width of the outlet is 15mm with all-round blowout, the processing air volume is 280m^Three/ H can be blown at a rotational speed of 1139 r / m, and the blown wind speed at that time is 4.2 m / s.
[0062]
  In the case of two-way blowing, the blowing outlet when the vertical width of the blowing outlet was 20 mm was divided into four equal parts, and the opening and closing were alternated, that is, the blowing was made in the linear direction. In this case, processing air volume is 230m^Three/ H can be blown at a rotational speed of 1140 r / m, and the blown wind speed at that time is 5.1 m / s.
  In this case, the drive motor is a condenser run induction motor, the number of poles is two, and when the maximum efficiency of the motor is 30%, the power consumption is about 12 W, so the power consumption of the circulating fan is negligibly small.
[0063]
  FIG. 5 is a graph in which the horizontal axis indicates the air volume of the circulating blower and the vertical axis indicates the difference between the upper and lower temperatures, and shows the difference in the effect of each blow mode. When the circulating fan was not operated, the temperature difference between the top and bottom was 7.4 ° C.
  Here, the one-way blow is the form of the circulating blower shown in FIG. 1, the all-round blow is the form of the blower of FIG. 17 shown in the prior art 6, and the two-way blow is the case of the omni-directional blow. The blower outlet is equally divided into four in the circumferential direction, and the form of a blower that blows out in two linear directions by alternately opening and closing portions is shown. The vertical width dimension of the air outlet indicates the height dimension of the air outlet 22 in FIG. 17, that is, the distance between the bell mouth 128 and the guide plate 109.
[0064]
  As a result, for example, by circulation, the circulating air flow to about 3 ° C., which is ½ or less when the upper and lower temperature difference is not operated, is about 160 m in the case of one-way blowing.^Three/ H About 280m with 2-way blowout^Three/ H, 320m for all-round blowing^ThreeIt was found that more than / h was necessary. In the case of one-way blowing, there was almost no difference in the upper and lower temperature difference, that is, the circulation effect due to the difference in the blowing direction.
  In the all-round blowout, the vertical width of the blowout port was changed to 15 mm, 20 mm, and 30 mm. As a result, the vertical width was good in the order of 15 mm, 20 mm, and 30 mm. The reason why the airflow of the two-way blowing is smaller in the all-round blowing and the two-way blowing is considered to be because the blowing air speed of the two-way blowing is about twice that of the all-round blowing when the airflow is the same. . Circulation effect seems to be related to the product of air volume and blowing wind speed.
[0065]
  Similarly, in FIG. 6, the horizontal axis shows the blown wind speed (average wind speed) of the circulating blower, and the vertical axis shows the difference between the upper and lower temperatures, and shows the difference in the effect in each blow mode. As a result, for example, by circulation, the blown air speed that is about 3 ° C., which is ½ or less when the vertical temperature difference is not operated, is about 3.2 m / s in the case of one-way blowing, and the vertical width dimension in the two-way blowing. In the case of 20 mm, it is about 6.2 m / s, and in the case of all-around blowout, when the vertical width of the outlet is 15 mm, it is about 4.7 m / s, in the case of 20 mm, it is about 4 m / s or more and about 3 m / s in the case of 30 mm. I found out that it was necessary.
[0066]
  Here, when comparing the two-way blowing and the all-around blowing in the case where the vertical width dimension of the outlet is 20 mm, the air volume becomes 77% when the motor power is the same when the all-around blowing is set to the two-way blowing. Therefore, the wind speed is 1.5 times. In the case of 20 mm for all-round blowing, about 4 m / s or more is required. If this is done in two directions, the wind speed will be 1.5 times 6.0 m / s. Since it is 6.2 m / s, it can be seen that the all-round blow and the two-way blow are almost equivalent.
[0067]
  FIG. 7 is a combination of FIG. 5 and FIG. 6, in which the horizontal axis represents the product of the air flow rate and the blown air speed of the circulating blower, and the vertical axis represents the vertical temperature difference. Represents.
  As a result, for example, by circulation, the product of air volume × wind speed (m^Four/ S²) Is about 0.16m in the case of one-way blowing^Four/ S²When the vertical dimension is 20 mm in the two-way blowing, it is about 0.48 m^Four/ S, with all-round blowout, approximately 0.43m when the vertical width of the blowout is 15mm^Four/ S, approx. 0.38m for 20mm^Four/ S²In case of 30mm, about 0.32m^Four/ S²I found it necessary.
[0068]
  Here, in the blower described in the prior art 6, when the vertical width of the air outlet is changed to 15 mm, 20 mm, and 30 mm, the air volume hardly changes at 20 mm and 30 mm, but when the motor power is constant, 7% Taking into account the decrease, when considering 20 mm as a reference, 15 mm is 0.93 (air volume) × 1.33 (blowing wind speed) = 1.24, 30 mm is 1.0 (air volume) × 0.67 (Blowing wind speed) = 0.67.
  Therefore, the product of air volume x wind speed (m^Four/ S²) Is approximately 0.38m in the case of 20mm^Four/ S²Then, in the case of 15 mm, 0.38 × 1.24 = about 0.47 m^Four/ S²In the case of 30 mm, 0.38 × 0.67 = 0.25 m^Four/ S²It is. Here, compared with the product of the required air volume x wind speed, the value is 0.43 for 15 mm and 0.32 for 30 mm, so it is slightly smaller for 15 mm but larger for 30 mm. . Considering this, the vertical width dimension of the air outlet is optimally 15 mm, and 20 mm is slightly worse, but if it is 30 mm, it becomes worse.
[0069]
  FIG. 8 shows the vertical height from the floor on the horizontal axis and the vertical temperature on the vertical axis, and represents the vertical temperature due to the difference in air volume in the case of unidirectional blowing.
  The air volume is 200m^Three/ H (Blowing wind speed at this time is 4m / s), 160m^Three/ H (the blowing wind speed at this time is 3.2 m / s), 130 m^Three/ H (the blowing wind speed at this time is 2.6 m / s), 100 m^Three/ H (the blowing wind speed at this time is changed to 2 m / s). 100m^Three/ H, the difference in temperature between top and bottom is 5.6 ° C, but the air volume increases and 200m^ThreeAt / h, the temperature difference between the top and bottom is reduced to 2 ° C. The temperature of 5cm above the floor is 100m^Three200m compared to 17 ° C at / h^ThreeIn / h, it rises by 4 ° C at 21 ° C. The air volume is 150m^ThreeEstimating the temperature of 5 cm above the floor at 1 hour / h is about 19.5 ° C. and 100 m^ThreeIncreased by 2.5 ° C compared to / h.
[0070]
  FIG. 9 shows the vertical height from the floor on the horizontal axis and the vertical temperature on the vertical axis, and represents the vertical temperature due to the difference in air volume when the vertical width of the outlet is 15 mm in all directions. Yes.
  Air volume is 340m^Three/ H (Blowing wind speed at this time is 5m / s), 310m^Three/ H (the blowing wind speed at this time is 4.6 m / s), 290 m^Three/ H (the blowing wind speed at this time is 4.3 m / s), 190 m^Three/ H (the blowing wind speed at this time is changed to 2.8 m / s). 190m^Three/ H, the vertical temperature difference is 6.5 ° C, but the air flow increases and 340m^ThreeAt / h, the temperature difference between the top and bottom is reduced to 2.8 ° C. The temperature of 5cm above the floor is 190m^Three340m compared to 15 ° C at / h^ThreeIn / h, it rises by 4 ° C at 19 ° C. Airflow 290m^Three190m from / h^Three/ H, the circulation effect decreases, for example, the air volume is 290 m^ThreeThe temperature of 5cm above the floor of / h is air volume 190m^ThreeIt is almost the same as the temperature of 50 cm above the floor of / h, and if the air volume is small, it seems that the air near the ceiling surface does not reach the floor surface.
[0071]
  FIG. 10 shows the vertical height from the floor on the horizontal axis and the vertical temperature on the vertical axis, and shows the vertical temperature due to the difference in air volume when the vertical width dimension of the outlet is 20 mm with two-way blowing. Yes.
  Air volume is 280m^Three/ H (the blowing wind speed at this time is 6.2 m / s), 230 m^Three/ H (the blowing wind speed at this time is 5.1 m / s), 160 m^Three/ H (the blowing wind speed at this time is changed to 3.5 m / s). 160m^Three/ H, the temperature difference between the top and bottom is 6.3 ° C, but the air volume increases and 280m^ThreeAt / h, the temperature difference between the top and bottom is reduced to 3 ° C. The temperature of 5cm above the floor is 160m^Three280m compared to 16.2 ° C at / h^ThreeAt / h, the temperature rises by 20.4 ° C and 4.2 ° C. Here, the air volume when blowing in two directions is 160 m.^Three/ H and the air volume in the above-mentioned all-around direction is 190m^ThreeWhen compared with / h, the temperature at 5 cm above the floor is higher by about 1 ° C. in spite of the smaller air volume in the two-way blowing. From this, it can be seen that when the air volume is the same, the two-way blowing which can increase the blowing wind speed is good.
[0072]
  Next, when comparing one-way blowing and two-way blowing, the air volume is the same 160m^ThreeIn comparison with / h, the temperature of 5 cm above the floor is 20 ° C. in the case of one-way blowing, and 16.2 ° C. in the case of two-way blowing. Air flow 260m in two directions^ThreeComparable to the effect of about / h.
  However, when the suction surface is below the circulation blower, the two-way blowing mode shown in FIG. 14 in which a propeller fan can be used instead of a centrifugal fan can be configured at a low manufacturing cost.
[0073]
  Considering the above results, the circulation blower specification is one-way blowing, the air volume is 160m^Three/ H or more, blown wind speed is 3m / s or more, or the product of air volume and blown wind speed is 0.20m^Four/ S²By doing so, the temperature difference between the upper and lower sides can be reduced to ½ or less of that when not operating.
  In addition, if the air is blown in two directions rather than all around, and the vertical width of the blowout outlet is set to an optimum value of about 20 mm, the air volume is 280 m.^Three/ H or more, blown wind speed is 6m / s or more, or the product of air volume and blown wind speed is 0.50m^Four/ S²By doing so, the temperature difference between the upper and lower sides can be reduced to ½ or less of that when not operating.
[0074]
  As a result, the average indoor temperature becomes the same as that increased by 2 to 3 ° C. Even if the set temperature of the air conditioner is lowered by about 2 ° C, the same heating effect can be obtained and energy saving of about 10% can be expected. This energy saving effect is about 50W in terms of power consumption. However, when the efficiency of the circulation fan is low, that is, when the power consumption of the circulation fan is high, the energy saving effect is reduced by the amount of power of the circulation fan, so that the circulation fan needs to be designed to save power. For example, when the power consumption of the circulating fan is 50 W, the floor temperature rises and it becomes comfortable, but the energy saving effect cannot be expected so much.
  The above content is an example between 8 tatami mats, which is an average room size, but in a room larger than this, a plurality of fans may be attached instead of proportionally increasing the size of the blower.
[0075]
【The invention's effect】
  As described above, according to the present invention, the thin cylindrical main body, the rotation axis direction provided in the main body coincides with the axial direction of the main body, the fan suction port is on the bottom surface side of the main body, and the fan outlet A centrifugal fan positioned so as to be on the side surface of the main body, a recess formed in the approximate center of the top surface of the main body to store the hooking ceiling, a mounting portion provided on the bottom surface of the main body for hooking and engaging the illuminator, and a side surface of the main body Since the air outlet is formed in about 1/4 of the side surface of the main body, the air outlet can be thinned and the degree of freedom in selecting the lighting fixture is high, and the circulation effect is excellent. A circulating blower can be obtained.
[0076]
  In addition, the main body top surface located at the upper part of the air outlet has an inclined portion that is inclined downward in the blowing direction and a protrusion at the tip of the inclined portion. Can be reduced.
[0077]
  Moreover, since the wind direction plate of the up-down direction or the left-right direction was provided in the blower outlet, the blowout direction can be adjusted in the product attachment state, and the flow of the blown air can be rectified to reach the target area.
[0078]
  Further, an engagement member that is engaged with the hook ceiling is provided on the top surface, an attachment member that is provided with an attachment portion on which the illuminator is hooked and engaged on the bottom surface, a blower fixed to the attachment member, Since the blower blade of the blower is housed and the main body having the blower outlet is provided, the circulation blower can be thinned and the degree of freedom in selecting the lighting fixture is high, and the workability is excellent.
[0079]
  Moreover, since the main body is attached to the attachment member so as to be rotatable in a horizontal plane with respect to the hooking ceiling, an effect of changing the blowing direction with the circulation blower attached can be obtained.
[0080]
  Moreover, since the recessed part or hole which accommodates a hook ceiling is formed in the approximate center of the main body top surface, the hook ceiling main body which protrudes from the ceiling surface can be accommodated in the part which is hard to influence ventilation performance, and can achieve thickness reduction.
[0081]
  In addition, since the main body is molded with resin and the mounting bracket is made of steel, it can be attached even if the illuminator itself is heavy, and the weight of the circulating fan can be reduced.
[0082]
  In addition, the air blowing capacity of the circulating fan is 150m.^Three/ H blown wind speed is 3m / s or more, or the product of air volume and blown wind speed is 0.2m^Four/ S²As described above, the circulation effect can be obtained efficiently, and the size and power consumption of the circulating fan can be reduced.
[0083]
  In addition, the blower of the circulation blower that sucks in from the lower surface and blows out the blower outlet in the circumferential direction along the ceiling surface into four equal parts in the circumferential direction, alternately opening and closing parts, and blowing out in two linear directions Capacity is 280m^Three/ H blown wind speed is 6m / s or more, or product of air volume and blown wind speed is 0.5m^Four/ S²As described above, the circulation effect can be obtained efficiently, and the size and power consumption of the circulating fan can be reduced.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a circulating fan according to an embodiment of the present invention.
FIG. 2 is a perspective view of a circulating fan according to an embodiment of the present invention.
FIG. 3 is a perspective view of the inside of the circulating fan according to the embodiment of the present invention.
FIG. 4 is a perspective view of a circulation effect test chamber.
FIG. 5 is a characteristic diagram in which the horizontal axis represents the air volume of the circulating fan and the vertical axis represents the vertical temperature difference.
FIG. 6 is a characteristic diagram in which the horizontal axis represents the wind speed of the circulating fan and the vertical axis represents the vertical temperature difference.
FIG. 7 is a characteristic diagram in which the horizontal axis represents the air volume × wind speed of the circulating fan and the vertical axis represents the vertical temperature difference.
FIG. 8 is a characteristic diagram showing the vertical height from the floor on the horizontal axis and the vertical temperature difference on the vertical axis.
FIG. 9 is a characteristic diagram showing the vertical height from the floor on the horizontal axis and the temperature difference on the vertical axis.
FIG. 10 is a characteristic diagram showing the vertical height from the floor on the horizontal axis and the vertical temperature difference on the vertical axis.
FIG. 11 is a cross-sectional view of a circulation fan according to another embodiment of the present invention.
FIG. 12 is a perspective view of the configuration of a circulating fan according to another embodiment of the present invention.
FIG. 13 is a perspective view in which an air cleaner is provided between a conventional ceiling surface and a lighting fixture.
FIG. 14 is a perspective view in which an air cleaner is provided between a conventional ceiling surface and a lighting fixture.
FIG. 15 is a cross-sectional view in which an air cleaner is provided between a conventional ceiling surface and a lighting fixture.
FIG. 16 is a cross-sectional view in which an air cleaner is provided between a conventional ceiling surface and a lighting fixture.
FIG. 17 is a cross-sectional view of a circulator provided with a conventional centrifugal diffuser air path.
FIG. 18 is a cross-sectional view according to an embodiment of a conventional ceiling luminaire.
[Explanation of symbols]
  DESCRIPTION OF SYMBOLS 1 Ceiling, 2 Hang ceiling body, 3 Hang ceiling cap, 4 Body fixing bracket, 5 Wood screw, 6 Body fixing screw, 7 Illuminator body, 7a Body flange, 7b Body mounting hole, 8 Circuit cover, 9 Circuit plate , 10 Inverter circuit, 11 Globe, 12 Circular fluorescent tube, 13 Small-diameter circular fluorescent tube, 14 Bean ball, 15 Circulating fan body, 16 Main body top surface, 16a Recessed part, 16b Body mounting hole, 16c Inclined part, 16d Protruding part, 17 Side of body, 18 Bottom of body, 19 Suction bell mouth, 20 Centrifugal fan, 20a Boss, 21 Suction port, 22 Outlet, 23 Hook ceiling body, 24 Hook ceiling cap, 25 Indoor electrical wiring, 26 Blower side wire, 27 Light fixture side electric wires, 28 gaps , 29 mounting screws, 30 body fixing bracket, 31 body fixing screw 32 motor mounting screws, 33 a drive motor, 33a rotating shaft, 34 an air guide, 35 the mounting plate.

Claims (8)

A thin cylindrical body,
A centrifugal fan that is provided inside the main body and whose rotational axis direction coincides with the axial direction of the main body, the fan suction port is located on the bottom side of the main body and the fan outlet is located on the side surface of the main body,
A recess formed in the approximate center of the top surface of the main body to store the hook ceiling;
A mounting portion provided on the bottom surface of the main body and engaged with the illuminator;
It has a blowout port and a suction port formed on the side of the main body,
Forming an outlet in approximately 1/4 of the side of the main body ;
The centrifugal fan has an air volume of 160 m ³ / h and an outlet air speed of 3 m / s or more, or a product of the air volume and the air outlet speed is 0.2 m ⁴ / s ² or more. Circulating blower.   The circulating blower according to claim 1, wherein an inclined portion that is obliquely downward toward the blowing direction is formed on a top surface portion of the main body located at an upper portion of the outlet, and a protrusion is formed at the tip of the inclined portion. .   The circulating blower according to claim 1, wherein a vertical or horizontal wind direction plate is provided at the air outlet. An engagement member provided on the top surface to be engaged with the hook ceiling, and an attachment member provided on the bottom surface with an attachment portion on which the illuminator is hooked and engaged;
A blower fixed to the mounting member;
Houses the blower blades of this blower, and includes a main body formed with suction ports and one outlet on the side surface ,
The air volume of the blower is 160 m ³ / h and the blown air speed of the outlet is 3 m / s or more, or the product of the air volume and the blown air speed is 0.2 m ⁴ / s ² or more. Circulating blower to do.   The circulation fan according to claim 4, wherein the main body is attached to the attachment member so as to be rotatable in a horizontal plane with respect to the hooking ceiling.   The circulating blower according to claim 4 or 5, wherein a recess or a hole in which the hooking ceiling is accommodated is formed at substantially the center of the main body top surface.   The circulating blower according to claim 4, 5 or 6, wherein the main body is resin-molded and the mounting bracket is made of steel. A blower that sucks in from the lower surface and blows out in the circumferential direction along the ceiling surface;
The blower blades of this blower are housed, and openings and closing portions are alternately arranged in the circumferential direction of the side surface, and a main body that blows out air from the blower blades in two linear directions from the openings. Prepared,
A circulating fan characterized in that the blowing capacity of the blower is 280 m ³ / h and the blown air speed is 6 m / s or more, or the product of the air volume and the blown air speed is 0.5 m ⁴ / s ² or more. .

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