WO2002052202A1 - Air conditioner - Google Patents
Air conditioner Download PDFInfo
- Publication number
- WO2002052202A1 WO2002052202A1 PCT/JP2001/011470 JP0111470W WO02052202A1 WO 2002052202 A1 WO2002052202 A1 WO 2002052202A1 JP 0111470 W JP0111470 W JP 0111470W WO 02052202 A1 WO02052202 A1 WO 02052202A1
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- WO
- WIPO (PCT)
- Prior art keywords
- radial
- circular
- bars
- bar
- air conditioner
- Prior art date
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Classifications
-
- 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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/56—Casing or covers of separate outdoor units, e.g. fan guards
- F24F1/58—Separate protective covers for outdoor units, e.g. solar guards, snow shields or camouflage
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
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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
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/022—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
- F24F1/027—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle mounted in wall openings, e.g. in windows
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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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/46—Component arrangements in separate outdoor units
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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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/46—Component arrangements in separate outdoor units
- F24F1/48—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
- F24F1/54—Inlet and outlet arranged on opposite sides
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/082—Grilles, registers or guards
Definitions
- the present invention relates to an air conditioner, and more particularly to an air conditioner, which is attached to an air outlet that discharges and guides heat exchange air that has been blown to a heat exchanger and exchanges heat to the outside, and includes a concentric circular beam and a radial beam.
- the improvement of the fangand composed of
- a heat exchanger and an outdoor blower are arranged opposite to each other in a housing that is a unit body.
- An inlet is provided on the back and side surfaces of the housing, and an outlet is provided on the front of the housing.
- the air outlet is provided on the front side of the housing, it is conceivable that a person accidentally puts a finger or an object into the housing from here. Therefore, a fangard is installed at this outlet to prevent the intrusion of fingers and objects to the extent that the ventilation of the heat exchange air is not impaired.
- the front of the outdoor unit is formed, for example, as shown in FIG.
- An outlet 102 is opened at the front of the housing 101, and a fang 103 is fitted into this.
- the fang 10 3 has a plurality of circular bars 104 provided concentrically at a predetermined pitch, and intersects with the circular bars 104 and has a circular shape.
- the bar 104 comprises a plurality of radial bars 105 provided radially from the center to the outermost periphery.
- the circular bar 104 and the radial bar 105 are molded from, for example, a synthetic resin material. Also, the radial bars 105 become narrower as they approach the center of the circular bars 104 due to their geometric characteristics. Naturally, the spacing between the radial bars 105 is designed to maintain the required strength at the outermost periphery of the fang 103.
- the interval between the radial bars 105 is set based on the design strength required at the outermost periphery, so that the center of the circular bar 104 is provided. As it gets closer, it becomes denser than the required interval calculated from the fangard intensity. As a result, there is a radial bar 105 having a large resistance to the wind flow.
- An air conditioner is an air conditioner in which a heat exchanger and a blower that blows heat exchange air to the heat exchanger to exchange heat are provided in the housing.
- An air outlet that discharges and guides the heat exchange air that has been blown to the heat exchanger and exchanges heat, and an air outlet that is attached to this air outlet and that secures a ventilation area for the heat exchange air, allowing the air to enter inside.
- Fangers to prevent intrusion The fangard is formed integrally using a synthetic resin material, and is provided with a plurality of circular bars provided concentrically at a predetermined pitch and intersecting with the circular bars.
- a plurality of radial bars are provided radially from the center of the circular bar to the outermost portion, and the radial bars are provided alternately at concentric pitches on concentric circles between the circular bars. ing.
- FIG. 1 is a schematic cross-sectional plan view of an outdoor unit constituting an air conditioner according to an embodiment of the present invention.
- FIG. 2A to FIG. 2C are diagrams for explaining the shape structure and air blowing characteristics of a propeller fan constituting the outdoor blower according to the embodiment.
- FIG. 3A is a front view of an outdoor unit having a fan guard according to the first embodiment.
- FIG. 3B is a front view illustrating the features of the circular and radial crosspieces constituting the fangard.
- FIG. 4 is a front view of an outdoor unit having a fan guard as a modified example of the first embodiment.
- FIG. 5 is a diagram showing the characteristics of the operating noise with respect to the amount of air blown by the outdoor blower when the fangard according to the first embodiment and the fangard having a conventional structure are provided.
- FIGS. 6A and 6B are front views of an outdoor unit provided with a fang as a different modification from the first embodiment.
- FIG. 7A is a front view of an outdoor unit having a fan guard according to the second embodiment.
- FIG. 7B is a front view for explaining the features of the circular bar and the radial bar constituting the fangard.
- FIG. 8 is a front view of an outdoor unit having a fangage as a modification of the second embodiment.
- FIG. 9 is a front view showing a part of a fangard as a further modified example in the second embodiment.
- FIGS. 10A to 10D are diagrams for explaining the shape structure and cross-sectional shape of the circular bar and the radial bar applied to the first and second embodiments ( FIG. 11A is a technical reference).
- FIG. 11B is a front view illustrating the features of a circular bar and a radial bar constituting the fangard.
- Figure 12 is a front view of an outdoor unit with a fangard.
- FIG. 13 is a front view showing an outdoor unit having a conventional fan guard.
- FIG. 1 is a cross-sectional view showing an outdoor unit 1 in a separate type air conditioner having an indoor unit and an outdoor unit.
- reference numeral 10 denotes a casing forming a unit body, and the inside of the casing 10 is divided into a heat exchange room 12 and a machine room 13 by a partition plate 11.
- An outdoor heat exchanger 14 formed in a plane L shape is arranged in the heat exchange chamber 12, and an outdoor blower 15 is arranged opposite to the outdoor heat exchanger 14.
- the compressor room 16 is located in the machine room 13. It is connected so as to form a refrigeration cycle circuit via a refrigerant pipe with the heat exchanger 14 and an indoor heat exchanger and the like arranged in an indoor unit (not shown).
- the outdoor blower 15 includes a fan motor 15 m and a propeller fan 15 f fitted to a rotation shaft of the fan motor 15 m. Since the propeller fan 15 f is mounted facing the front side of the housing 10, the front side of the housing 10 is the blowout side, and the rear side is the suction side. Since the outdoor heat exchanger 14 is interposed between the rear side of the casing 10 and the propeller fan 15f, it is located on the suction side of the propeller fan 15f.
- a suction port 17 is provided in each of the casings 10 on the rear side and the side face of the heat exchange chamber 12. That is, by driving the outdoor blower 15, external air is sucked into the housing 10 through the suction port 17.
- An air outlet 18 is provided in the housing 10 on the front side of the heat exchange chamber 12.
- the outlet 18 is fitted with a later-described fangard 20 to reliably prevent intrusion of a finger or an object.
- the dimensions are designed so as not to cause the resistance of the heat exchange air passing through the outlet 18 to the ventilation.
- the propeller fan 15 f is shown in Fig. 2A, Fig. 2B and Fig. 2C.
- Fig. 2B when driven in the clockwise direction (arrow ⁇ ⁇ ) in Fig. 2B, as shown in Fig. 2C, the direction Va and the direction V from the center axis K to the outer periphery are obtained.
- the strength of the outlet flow increases in the order of b and direction Vc.
- Fig. 2A when the blowout angle increases from small (parallel to the axis) to large (large angle with the axis) in the order of Wa, Wb, and Wc, In this order, the strength of the outlet flow increases.
- FIG. 3A shows the front side of the housing 10, and the fang 20 of the first embodiment is fitted in the air outlet 18.
- This fang 20 is composed of a plurality of crosspieces 2 integrally formed using a synthetic resin material.
- the crosspiece 21 has a plurality of circular crossings 24 provided concentrically at a predetermined pitch from the center to the outermost circumference, and intersects with the circular crossings 24. From the center to the outermost part! : It is composed of a plurality of radial bars 25 provided radially.
- the radial bar 25 is composed of three types of radial bars 25a to 25c depending on its length.
- the spacing between the radial bars 25 adjacent to each other along the circumferential direction basically increases gradually from the center of the circular bar 24 to the outermost periphery (from the outermost portion of the circular bar 24). Is gradually reduced over the center), but is provided here as described below.
- radial bars 25 on the same straight line from the outermost peripheral portion of the circular bar 24 to the center are provided at every other pitch of concentric circles formed between the circular bars 24.
- Circumferentially adjacent release The radial bar 25 is formed by one pitch of a concentric circle formed between the circular bars 24 from the concentric circle between the circular bars 24 shifted by one pitch toward the center of the circular bar 24. It is provided everywhere. From this, the radial bars 25 are provided alternately on the concentric circles adjacent to the circular bar 24.
- Radial bars 25b and 25b are provided on both sides in the circumferential direction of the radial bar 25a, and when the radial bars 25c and 25c are arranged adjacently on both sides in the circumferential direction, a circular bar is provided.
- the radial bar 25a and the radial bar 25c are arranged on the same concentric circle Ra between the 24, and the radial bar 25b is not located on the concentric circle.
- the radial bar 25b is arranged on a concentric circle Rb shifted by one pitch from the concentric circle Ra between the circular bars 24 on which the radial bars 25a and 25c are arranged. Further, radial bars 25a and 25c are arranged on the concentric circle Ra shifted by one pitch from the concentric circle Rb, and thereafter, the radial bars 25b and 25a, 25 c are arranged for each of the concentric circles Ra and Rb between the circular bars 24, that is, at one pitch. Therefore, the radial bars 25a, 25c and the radial bars 25b are alternately arranged.
- Q is the circumferential distance between the adjacent radial bars 25 a and 25 c.
- the circumferential distance between adjacent radial bars 25 b, 25 b is slightly smaller than Q.
- the circumferential distance between the adjacent radial bars 25a and 25c is further reduced.
- the ends of the radial bars 25b, 25b Be missing.
- the remaining radial bars 25a and 25c are extended toward the center of the circular bar 24 as they are.
- the circumferential interval between the radial bars 25a and 25c gradually decreases. Further, at the position where the circumferential distance between the adjacent radial bars 25a and 25c is approximately Q / 2, the end of the radial bar 25c is missing. In this way, the chipping is repeated under the above conditions until the remaining radial bar 25 is extended to the center of the circular bar 24.
- a radial bar 25b is provided up to the concentric circle R1, and the end of the radial bar 25b is omitted.
- a radial bar 25c is provided up to the position of the concentric circle R2, and the end of the radial bar 25c is cut off, and the radial bars 25a, 25a are spaced from each other at a predetermined interval at the innermost peripheral position. Thus, the leading end is cut off.
- the radial bar 25a is arranged on the concentric circle R3 one pitch inside from the end of the radial bar 25b of the concentric circle R1, and the radial bar 25c is not arranged.
- the radial bars 25 c are arranged at every other pitch from the concentric circle R 4 at the inner side of the pitch.
- the radial bars 25a, 25c and the radial bars 25b are alternately arranged from the outermost periphery of the circular bar 24.
- the radial bars 25a and the radial bars 25c are alternately arranged on the center side from the concentric circle R1 of the missing radial bar 25b.
- the interval between the radial bars 25 on the concentric circle gradually narrows from the outermost periphery of the circular bar 24 to the center, but the end of the radial bar 25 b that is formed first is formed.
- the interval between the radial bars 25a-25a increases to almost the same as the interval Q at the outermost periphery.
- the mutual interval between the radial bars 25c and the radial bars 25a provided alternately from the concentric circle R4 one pitch inside of the concentric circle R3 to the center portion is gradually reduced. .
- the distance between the radial beams 25 that secures the required strength as the fangard 20 can be set wider, so that the radial beams 25 that have a large resistance to the wind flow can be set. Can be reduced. Specifically, it is as shown in the table below.
- FIG. 4 shows a fangard 30 as a modified example of the above-described first embodiment.
- two sets of the fangards 20 previously described in FIG. 3A are provided at the same time, and the upper and lower sides are turned symmetrically.
- FIG. 5 shows an outdoor unit provided with the fangard 20 shown in FIG. 3A and an outdoor unit provided with the fangard 3 having the conventional configuration described above with reference to FIG. 13. It is the result of measuring the change of the operation noise with respect to the air volume of the outdoor blower 15.
- FIG. 6A shows a fangard 40 as a modification of the first embodiment.
- the circular bar 44 corresponds to the circular bar 24 in FIGS. 3A and 3B described above
- the radial bar 45 corresponds to the radial bar 25 in FIGS. 3A and 3B described above. It is provided correspondingly.
- the radial bars 45 are arranged under the same conditions as the radial bars 25 described above with respect to the circular bars 44 formed concentrically. However, all of the radial bars 45 here are: The circular bar 44 is arranged at a predetermined angle with respect to the center of the bar.
- all the radial bars 45 are formed so as to be inclined at a predetermined angle with respect to the center of the circular bar 44, but the present invention is not limited to this. It may be formed in a spiral shape as a whole.
- FIG. 6B shows a fangard 50 as a further modification of the second embodiment.
- Fangard 50 includes a first cross section 51 and a second cross section 52.
- the first cross section 51 and the second cross section 52 are distinguished by a predetermined pitch circle having a diameter of about half of the outermost circle, the outer cross section being the first cross section 51, and the inner cross section being the first cross section. It has 2 piers 5 2.
- the first cross section 51 has a concentric circular cross section 53 and a conventional pitch circle extending from the outermost periphery of the circular cross section 53 toward the center to a predetermined pitch circle. Similar equally spaced radial contacts 54 are provided.
- concentric circular beams 55 are provided, and radial beams 56 are provided alternately with respect to concentric circles between the circular beams 55 from the pitch circle position to the center. . Effectively, it is exactly the same as Fangard 20 described above.
- FIG. 7A shows a fangard 60 according to the second embodiment.
- This fangard 60 is composed of a plurality of circular bars 64 provided concentrically at the same pitch from the outermost periphery to the center, and radial bars 64 provided intersecting these circular bars 64. It consists of 5 and.
- the radial bar 65 has a deformed radial shape depending on the arrangement conditions of the radial bar 65 as described later.
- the radial bars 6 5 are arranged at equal intervals on a concentric circle between the circular bars 64, and the radial bars 6 on this concentric circle are arranged.
- the number of lines 5 is gradually reduced by one for each pitch of the concentric circles from the outermost periphery of the circular beam 64 toward the center.
- the radial bar 65 has a linear portion 65 a formed linearly from the outermost peripheral portion to the center of the circular bar 64, and a linear portion 65 a Are formed alternately on concentric circles between the circular bars 64 except for the parabolic portions 65b and the linear portions 65a and the parabolic portions 65b which are formed in a parabolic shape on both sides of the It is composed of a staggered part 65 c and a cap.
- the number of the radial bars 65 can be more specifically described from the center to the outer periphery of the circular bar 64 in order to explain the number.
- One radial bar 65 is provided in a straight line from the center of the circular bar 64 to the outermost periphery, and this is defined as a linear portion (reference radial bar) 65a.
- a total of seven radial bars 65 are inserted at regular intervals, including the linear portion 65a. Be placed.
- a total of eight radial bars 65 including the linear portions 65a are arranged at equal intervals.
- the number of radial bars 65 on the concentric circle between the circular bars 64 on the outer circumference of one pitch is increased by one.
- the outermost concentric circle R 28 28 radial bars 65 are arranged at equal intervals including the part 65a.
- the intervals between the radial bars 65 are set at the same rate of change! /
- the radial bar 65 is formed by a straight portion 65a formed linearly from the outermost peripheral portion to the center of the circular bar 64, and the linear portion 65a.
- Parabolic portions 65 b and 65 c on both sides are formed.
- FIG. 8 shows a fangade 70 as a modified example of the above-described second embodiment.
- two sets of the fangards 60 previously described in FIG. 7A are provided at the same time, and the upper and lower sides are oriented so as to be symmetrical.
- FIG. 9 shows a fangade 80 as a further modification of the second embodiment. This is a part of the staggered portion 85c in which the parabolic portion 85b and the staggered portion 85c are formed based on the straight portion 85a as described above. It is a modification of only
- a total of seven radial bars 85 including the reference radial bars 85a are placed on a concentric circle R8 one pitch outside the concentric circle R7, which is arranged at equal intervals, and alternately.
- the part corresponding to the part 85c is arranged with the interval between the radial bars 85 widened.
- the radial bars 85 at the portions corresponding to the staggered portions 85c are arranged so as to be widened.
- the part where the interval between the radial bars 85 is widened is hatched.
- the number of radial bars 85 that is greater than the strength required for the fangard 80 is not required, and the number of radial bars 85 can be reduced to the utmost limit, and the ventilation resistance of the fangard 80 can be reduced. .Reduction and a significant improvement in the ventilation characteristics of the outdoor blower 15 can be achieved, leading to improved heat exchange performance.
- the number of the radial bars 25 described in the column of Fangard 20 is the same as that of the radial bars 25 as described above with reference to FIG. 3A.
- the number of radial bars 25 extending from the outermost peripheral portion La to the center portion Lw of the circular bar 24 is, for example, 24 types of gnolap, 12 gnolaps, and 6 types of gnolaps. Divide into groups.
- the total number is 390, and the ratio of the number of radial bars 25 is 0.53, compared to the 736 of the conventional structure.
- the number of radial bars 65 described in the column of Fangard 60 is a circular bar 64 extending from the outermost peripheral portion La to the center portion Lw as described above with reference to FIG. 7A. This is a configuration in which the number of radial bars 65 is reduced by one.
- the minimum is 10 wires.
- the total number is 483, which is larger than in the first embodiment, but can be significantly reduced as compared with the conventional example.
- FIGS. 10A to 10D are diagrams showing examples of specific shapes of a circular bar and a radial bar.
- the method can be applied to all of the items 85, the following describes the circular bar 24 and the radial bar 25 in the fangard 20.
- a circular bar 24 is provided in parallel with a predetermined interval, and a radial bar 25 is provided in a direction orthogonal to the circular bar 24.
- the circular bar 24 has a cross-sectional shape. It has a substantially flat shape or a substantially wing shape. Therefore, the ventilation resistance between the circular bars 24 is reduced, and the noise due to the separation of the airflow is increased. Suppressing this can lead to a significant improvement in airflow characteristics.
- the cross section of the radial bar 25 has a circular shape, a substantially flat shape, or a substantially wing shape. Therefore, it is possible to increase the strength without substantially increasing the ventilation resistance of the fangard 20, and to thereby suppress the cross-sectional dimension of the circular bar 24.
- FIG. 11A and FIG. 11B are diagrams showing a technical reference example.
- FIG. 3A shows the front side of the housing 10, and a fan guard 90 is fitted into the air outlet 18.
- This fangard 90 is composed of a plurality of crosspieces integrally formed using a synthetic resin material.
- a plurality of circular bars 94 provided concentrically at a predetermined pitch from the center portion to the outermost peripheral portion, and the circular bars 94 intersect with the circular bars 94 are formed. It comprises a plurality of radial bars 95 provided radially from the center to the outermost periphery.
- the distance between the adjacent radial bars 95 gradually increases from the center of the circular bar 94 to the outermost portion (shorterly decreases from the outermost portion to the center of the circular bar 94). Needless to say, the radial bar 5 has a predetermined portion where the end facing the center of the circular bar 94 is cut off.
- the missing configuration at the end of the radial bar 95 will be described in detail.
- the distance between the ends of the adjacent radial bars 5 is m.
- the interval between the adjacent radial bars 95 gradually becomes smaller than m. Go.
- the other radial beam 95 extends as it is toward the center of the circular beam 94.
- the radial beam 95 is extended adjacent to the radial beam 95 that is not cut off first, and the distance between the radial beams is gradually reduced. 5 The distance between them becomes mZ 2, where one of the ends of the radial bar 95 is missing and the point is thinned out. Until the remaining radial bar 95 extends to the center of the circular bar 94, the chipping is repeated under the above conditions.
- a reference radial bar S is provided vertically and horizontally orthogonally from the center of the circular bar 94 to the outermost periphery, and the radial bar at the intermediate portion (ie, 45 °) between the reference radial bars 95 s is provided.
- the pier is called 95a.
- Radial bars 95b, 95b are provided on both sides of the radial bar 95a, and the complete circular shape of the circular bar 94 on which the radial bars 95c, 95c are arranged is also provided.
- the distance between the radial bars 95a, 95b, and 95c at the outermost peripheral portion Ps is m.
- radial bars 95 a, 95 b, 95 c extend from the outermost periphery of the circular bar 94 toward the center, but at the predetermined pitch circle position P a of the circular bar 94.
- the mutual interval between the radial bars 95a and the radial bars 95b and the mutual interval between the radial bars 95b and the radial bars 95c are respectively mZ2.
- radial bar 95a and radial bar 95c remain intact.
- the ends of the radial bars 95b on both sides are cut off and the ends are thinned out.
- Radial bars 95a and 95c are further extended, so that radial bars 95a and 95c are adjacent to each other and the distance between them is gradually reduced.
- the mutual interval between the radial beams 95a and the radial beams 95c and the mutual interval between the radial beams 95c and the radial beams 95s are respectively m Z 2. Therefore, this time, the end of the radial bar 95 c is cut off, and the radial bar 95 a and the radial bar 95 s are further extended.
- the radial bar 95 a and the reference radial bar 95 s are adjacent to each other, and the interval between them is gradually reduced.
- the distance between the radial beams 95 a and 95 s is m Z 2.
- the radial blower 95 which matches the strength of the outlet flow of the propeller fan 15f and is unnecessary in terms of strength, is cut off and thinned out.
- the fan-shaped configuration corresponding to the blow-out characteristics of the fan fan 90 reduces the ventilation resistance of the fan-guard 90 and significantly improves the air-blowing characteristics of the outdoor blower 15 to improve the heat exchange performance.
- the number of radial bars 95 described in the column of Fangard 90 in Table 1 is as follows.
- the number of radial bars 25 at the outermost part a must be 32 as in the conventional example, but the ends of the radial bars are missing on a predetermined pitch circle. Therefore, half of the number is 16 in the middle part, and half of the number is half in the vicinity of the center. Therefore, the number of radial bars can be significantly reduced as compared with the conventional example.
- FIG. 12 shows a fangard 99 as a modification of the above-described first embodiment.
- two sets of the fangade 90 described above with reference to FIG. 11A are provided at the same time, and the upper and lower sides are oriented so as to be symmetrical.
- the internal configuration is basically the same as that described above with reference to Fig. 1, but since it is adopted as an outdoor unit in a relatively large air conditioner, Two sets of outdoor heat exchangers are arranged to face the upper and lower fanguards, respectively, or a large outdoor heat exchanger spanning the upper and lower fanguards is installed. In addition, since the outdoor blower is disposed to face each of the upper and lower fan guards, the same operation and effect as described above can be obtained.
- the ventilation area at the outlet is increased, and the ventilation resistance is reduced. This is effective in the technical field of air conditioners, as it has the effect of obtaining a significant improvement in performance.
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- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2003-7008556A KR100529547B1 (en) | 2000-12-26 | 2001-12-26 | Air conditioner |
EP01271886A EP1347245B1 (en) | 2000-12-26 | 2001-12-26 | Air conditioner |
AU2002217516A AU2002217516B2 (en) | 2000-12-26 | 2001-12-26 | Air conditioner |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000-396048 | 2000-12-26 | ||
JP2000396048A JP4482224B2 (en) | 2000-12-26 | 2000-12-26 | Air conditioner |
Publications (1)
Publication Number | Publication Date |
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WO2002052202A1 true WO2002052202A1 (en) | 2002-07-04 |
Family
ID=18861409
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/011470 WO2002052202A1 (en) | 2000-12-26 | 2001-12-26 | Air conditioner |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1347245B1 (en) |
JP (1) | JP4482224B2 (en) |
KR (1) | KR100529547B1 (en) |
CN (1) | CN1216255C (en) |
AU (1) | AU2002217516B2 (en) |
WO (1) | WO2002052202A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1333207C (en) * | 2002-11-08 | 2007-08-22 | 大金工业株式会社 | Fan guard for blower unit |
US9076139B2 (en) | 2012-04-11 | 2015-07-07 | Micros Systems Uk Limited | Apparatus for the delivery of a product |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2019056531A (en) * | 2017-09-22 | 2019-04-11 | 株式会社富士通ゼネラル | Fan guard and air conditioner including the same |
WO2020091150A1 (en) * | 2018-10-30 | 2020-05-07 | 주식회사 명성 | Safety net for fan |
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JPH0571766A (en) | 1991-09-17 | 1993-03-23 | Matsushita Electric Ind Co Ltd | Front grill for outdoor machine for air-conditioner |
JPH08247097A (en) | 1995-03-09 | 1996-09-24 | Toshiba Ave Corp | Fan guard |
JPH11237083A (en) * | 1998-02-19 | 1999-08-31 | Sanyo Electric Co Ltd | Air conditioning equipment |
JP2000065418A (en) * | 1998-08-25 | 2000-03-03 | Hitachi Ltd | Air conditioner |
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JPH01159498A (en) * | 1987-12-14 | 1989-06-22 | Mitsubishi Electric Corp | Ventilating device |
JPH0744893Y2 (en) * | 1992-11-20 | 1995-10-11 | 岩谷産業株式会社 | Fan guard |
JP3043259B2 (en) * | 1995-02-17 | 2000-05-22 | 三洋電機株式会社 | Air conditioner |
JPH10197014A (en) * | 1997-01-06 | 1998-07-31 | Matsushita Refrig Co Ltd | Outdoor machine of air conditioner |
JP2000234766A (en) * | 1999-02-12 | 2000-08-29 | Hitachi Ltd | Air conditioner |
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2000
- 2000-12-26 JP JP2000396048A patent/JP4482224B2/en not_active Expired - Lifetime
-
2001
- 2001-12-26 KR KR10-2003-7008556A patent/KR100529547B1/en active IP Right Grant
- 2001-12-26 WO PCT/JP2001/011470 patent/WO2002052202A1/en active IP Right Grant
- 2001-12-26 EP EP01271886A patent/EP1347245B1/en not_active Expired - Lifetime
- 2001-12-26 CN CN018212379A patent/CN1216255C/en not_active Expired - Lifetime
- 2001-12-26 AU AU2002217516A patent/AU2002217516B2/en not_active Expired
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JPH0571766A (en) | 1991-09-17 | 1993-03-23 | Matsushita Electric Ind Co Ltd | Front grill for outdoor machine for air-conditioner |
JPH08247097A (en) | 1995-03-09 | 1996-09-24 | Toshiba Ave Corp | Fan guard |
JPH11237083A (en) * | 1998-02-19 | 1999-08-31 | Sanyo Electric Co Ltd | Air conditioning equipment |
JP2000065418A (en) * | 1998-08-25 | 2000-03-03 | Hitachi Ltd | Air conditioner |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1333207C (en) * | 2002-11-08 | 2007-08-22 | 大金工业株式会社 | Fan guard for blower unit |
US9076139B2 (en) | 2012-04-11 | 2015-07-07 | Micros Systems Uk Limited | Apparatus for the delivery of a product |
Also Published As
Publication number | Publication date |
---|---|
AU2002217516B2 (en) | 2005-06-02 |
EP1347245A4 (en) | 2009-05-20 |
CN1483125A (en) | 2004-03-17 |
KR20030067720A (en) | 2003-08-14 |
EP1347245B1 (en) | 2010-11-24 |
KR100529547B1 (en) | 2005-11-22 |
EP1347245A1 (en) | 2003-09-24 |
JP2002195610A (en) | 2002-07-10 |
CN1216255C (en) | 2005-08-24 |
JP4482224B2 (en) | 2010-06-16 |
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