WO2006027993A1 - 高所設置型の空気調和機の天板構造 - Google Patents
高所設置型の空気調和機の天板構造 Download PDFInfo
- Publication number
- WO2006027993A1 WO2006027993A1 PCT/JP2005/016001 JP2005016001W WO2006027993A1 WO 2006027993 A1 WO2006027993 A1 WO 2006027993A1 JP 2005016001 W JP2005016001 W JP 2005016001W WO 2006027993 A1 WO2006027993 A1 WO 2006027993A1
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- WIPO (PCT)
- Prior art keywords
- top plate
- reinforcing ribs
- parallel
- air conditioner
- depth
- Prior art date
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Classifications
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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
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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
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
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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
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
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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
- F24F13/20—Casings or covers
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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
- F24F13/32—Supports for air-conditioning, air-humidification or ventilation units
Definitions
- the present invention relates to a top plate structure of an air conditioner installed at a high place.
- An air conditioner (indoor unit) installed in a high place such as a ceiling-embedded type or a ceiling-suspended type in a house, for example, uses a metal top plate for the top surface of a cassette-type main body casing. It is composed. Either suspend the main body casing in the ceiling using hanging bolts, etc. with heavy objects such as fans and fan motors, heat exchangers, drain pumps, and switch boxes suspended from the top plate. Alternatively, the air conditioner is installed on the ceiling of the house by suspending it from the bottom of the ceiling.
- FIGS. 1-10 As an example of such an altitude installation type air conditioner, a ceiling embedded type air conditioner is shown in FIGS.
- an air conditioner main body 1 is arranged above an opening 7 formed in a ceiling C, and the air conditioner main body 1 is A decorative panel 2 covering the opening 7 is attached.
- the air conditioner body 1 has a cassette-type body casing 3.
- a substantially annular heat exchanger 4 In the main body casing 3, a substantially annular heat exchanger 4, an air suction side facing downward in the center of the heat exchanger 4, and an air outlet side set to the side of the heat exchanger 4 are set.
- a fan (in other words, an impeller) 5 and a fan motor 9 and a synthetic resin bell mouth 6 disposed on the air suction side of the fan 5 are disposed.
- the fan 5 includes a large number of blades 5c between the hub 5a and the shroud 5c.
- a drain pan 8 is disposed below the heat exchanger 4, and an air blowing passage 10 is formed on the outer periphery of the heat exchanger 4.
- the main body casing 3 has a substantially hexagonal cross section, and includes a side wall 3a serving as a heat insulating material and a top plate 32 covering an upper portion of the side wall 3a.
- the heat exchanger 4 includes a pair of opposed open ends, and tube plates 4a and 4a are provided at both open ends. Each of the tube plates 4a and 4a is connected by a predetermined partition plate 12.
- the top plate 32, the tube plates 4a, 4a, the partition plate 12 and the switch box 13 attached to the lower surface of the bell mouth 6 are all made of sheet metal products.
- the top plate 32 and the switch box 13 are screwed to the upper and lower end portions of the partition plate 12 as shown in FIG.
- the bell mouth 6 is formed with a recess 14 for accommodating the switch box 13, and the top surface 14 a of the recess 14 is formed at the lower end of the partition plate 12.
- An opening 16 in which the box coupling portion 15 is disposed is formed.
- a pair of mounting pieces 17, 17 coupled to the top plate 32 are provided on both sides of the upper end portion of the partition plate 12, and the mounting pieces 17, 17 are provided on the top plate 32. On the other hand, it is fixed from below with screws 18.
- the mounting piece 15 includes an L-shaped base portion 15a coupled to the partition plate 12 and a mounting portion 15b integrally extending downward from the tip of the base portion 15a. In a state where the portion 15b is inserted into the concave portion 14 from the opening 16, it is fixed to the top surface 13a of the switch box 13 from below by screws 21.
- the air conditioner includes a drain pump 22, a float switch 23, a drain pump accommodating portion 24 in which the drain pump 22 is disposed, a partition plate 25 that partitions the drain pump accommodating portion 24, A lid cover 26 for the switch box 13 is provided.
- the top plate 32 is formed in a substantially hexagonal shape corresponding to the shape of the main body casing 3 of the air conditioner main body 1, and the upper end of the side wall 31 of the main body casing 3 is formed on the outer periphery thereof.
- a hook-shaped edge portion 32c for fitting the top plate 32 is provided on the outer periphery of the portion.
- the top plate 32 extends radially from the substantially central portion 33 where the fan 5 and the fan motor 9 described above are supported to the outer peripheral portion where the substantially annular heat exchanger 4 is supported and downward.
- a plurality of main reinforcing ribs 32a having a predetermined width and a predetermined depth are provided.
- a stepped portion 32b is formed in the heat exchange support portion on the outer periphery of these main reinforcing ribs 32a.
- the basic reinforcing rib 32a sets the basic rigidity (deflection characteristics), strength, and vibration characteristics of the top plate 32 to necessary levels.
- the space between the main reinforcing ribs 32a is widened on the outer peripheral side of the top plate 32, and there is a risk that rigidity, strength, and the like will be insufficient. Therefore, between the main reinforcing ribs 32a, as shown in FIG. 43, a plurality of sub reinforcing ribs 34 having a desired shape and size corresponding to the assumed load are provided adjacent to each other. ing. Thereby, at the time of design, the primary natural frequency of the top plate 32 is maintained above a certain value in order to keep the static deflection of the top plate 32 below a certain value and to avoid resonance due to the rotation of the fan motor 9.
- the top plate 32 is also provided with reinforcing ribs 33a having a substantially triangular shape in the support portion of the fan 5 and the fan motor 9 in the substantially central portion 33.
- reinforcing ribs 33a having a substantially triangular shape in the support portion of the fan 5 and the fan motor 9 in the substantially central portion 33.
- the fan and fan motor support portion reinforced by the reinforcing rib 33a is provided with a circular concave groove at each corner portion at the bottom and apex thereof, and three fan motors are attached to the central shaft portion of the concave groove. Portions a, b, and c are formed.
- the fan motor 9 is suspended and fixed via a mount member 11 and a mounting bracket 9b having a vibration absorbing property with respect to the fan motor mounting portions a, b, and c.
- the fan 5 is pivotally supported on a rotating shaft 9 a of a fan motor 9 so as to be rotatable.
- Patent Document 1 Japanese Patent Laid-Open No. 11-201496.
- the top plate 32 is no exception.
- the overall thickness is made thinner than the current one (for example, a thickness of 0.8 mm) (for example, a thickness of about 0.6 mm to 0.7 mm), It is conceivable to reduce material costs and improve workability for forming ribs and the like.
- the problem is a decrease in rigidity and strength. This is a measure against vibration during driving. If the plate thickness is made thinner than the current one, the material cost is reduced and deformation is facilitated, so that the pressurizing force during press forming can be reduced and the workability is improved.
- the present invention has been made in view of the above points, and an object of the present invention is to provide a top plate structure of an air conditioner that can obtain the rigidity, strength, and vibration characteristics necessary for the top plate!
- an air conditioner including a main body casing that houses a fan, a fan motor, and a heat exchanger is provided, and the main body A plurality of parallel reinforcing ribs arranged in parallel are formed on the top plate that constitutes the top surface of the casing and supports the fan and the fan motor.
- the top plate having a plurality of parallel reinforcing ribs arranged in parallel is compared with the conventional product having the radial reinforcing ribs. Since the maximum deflection is smaller and the resonance rotational speed is higher, the static characteristics of the air conditioner are improved. Even if the thickness of the top plate is made thinner than that of the conventional product, if the number and width of the parallel reinforcing ribs are adjusted and set optimally, the maximum deflection can be reduced compared to the conventional product and resonance can be achieved. The number of revolutions will be improved, and the cost of the top plate can be expected to be reduced by reducing the material. In addition, since the primary natural frequency of the top plate becomes higher, it is easy to take measures against noise generated by the vibration of the top plate due to the rotation of the fan motor.
- an air conditioner including a main casing that houses a fan, a fan motor, a heat exchanger, and the like constitutes the top surface of the main casing, and
- the top plate supporting the fan and the fan motor includes parallel reinforcing ribs arranged in parallel, a parallel part arranged in parallel with the parallel reinforcing rib, and a non-parallel part extending from the end of the parallel part at a predetermined angle. It is formed by mixing non-parallel reinforcing ribs.
- the top plate formed by mixing parallel reinforcing ribs and non-parallel reinforcing ribs has a smaller maximum deflection and a higher resonance rotational speed. Is improved. Even if the thickness of the top plate is made thinner than that of the conventional product, if the number and width of parallel reinforcing ribs and non-parallel reinforcing ribs are adjusted and set optimally, the maximum deflection will be achieved compared to the conventional product.
- the resonance rotational speed is improved, and the cost of the top plate can be expected to be reduced by reducing the material. Further, since the primary natural frequency of the top plate becomes higher, it is easy to take measures against noise generated by the vibration of the top plate due to the rotation of the fan motor. Further, it is possible to avoid the occurrence of warpage during press working.
- each reinforcing rib and the distance between the reinforcing ribs may be substantially equal. In that case, since the arrangement balance of the reinforcing ribs on the top plate is optimal, the maximum deflection can be further reduced and the resonance rotational speed can be further improved.
- each of the reinforcing ribs and the distance between the reinforcing ribs may be different from each other. In that case, the degree of freedom in setting the rigidity (flexure characteristics), strength, and vibration characteristics of the top plate is improved.
- each reinforcing rib may be 5 to 15% of the width of the top plate. In that case, even when the thickness of the top plate is reduced, the maximum deflection can be reduced and the resonant rotation speed can be improved compared to the conventional product, and the cost of the top plate can be expected to be reduced by reducing the material. If it is less than 5%, the number of reinforcing ribs will be too large and it will be difficult to form the reinforcing ribs. If it exceeds 15%, the number of reinforcing ribs will be insufficient and the reinforcing ribs will be insufficient. The effect of forming is insufficient.
- a central one may be formed in a straight line.
- the rigidity of the part where the fan motor is attached is strengthened, the maximum deflection can be reduced, and the resonance rotational speed is improved, so that the cost of the top plate can be further reduced by reducing the material.
- each reinforcing rib is 7 mn! It can also be set in the range of ⁇ 11mm. In that case, the maximum deflection can be reduced and the resonance rotational speed can be improved, so that the cost of the top plate can be further reduced by reducing the material. Note that the greater the depth of each reinforcing rib, the lower the maximum deflection and the higher the resonance speed. 1 lmm is desirable.
- the depth of the central reinforcing rib can be made different from the depth of the other reinforcing ribs. Even in this case, the maximum deflection can be reduced and the resonance rotational speed can be improved, so that the cost of the top plate can be further reduced by reducing the material.
- the reinforcing ribs may be protruded alternately on the front side of the top plate! /. In that case, since the maximum deflection can be further reduced, the cost reduction of the top plate due to material reduction can be further expected.
- each reinforcing rib can be made shallower than the depth of the central portion.
- the maximum deflection can be reduced and the resonance rotational speed can be improved, so that the cost of the top plate can be further reduced by reducing the material.
- the thickness of the top plate is 0.6 mn! It can also be set in the range of ⁇ 0.7mm. In that case, cost reduction of the top plate can be expected by reducing the material.
- the air conditioner is a high-altitude installation type.
- FIG. 1 is a bottom view showing a top plate structure of an air conditioner installed at a high altitude, which is effective in the first embodiment.
- FIG. 2 is a cross-sectional view taken along line 2-2 in FIG.
- FIG. 3 is a bottom view showing a top plate structure of an air conditioner that is effective in a second embodiment.
- FIG. 4 is a cross-sectional view taken along line 4-4 in FIG.
- FIG. 5 is a bottom view showing the top plate structure of Sample No. 1.
- FIG. 6 is a bottom view showing the top plate structure of Sample No. 2.
- FIG. 7 is a bottom view showing the top plate structure of Sample No. 3.
- FIG. 8 is a bottom view showing the top plate structure of Sample No. 4.
- FIG. 9 is a bottom view showing the top plate structure of Sample No. 5.
- FIG. 10 is a bottom view showing the top plate structure of Sample No. 6.
- FIG. 11 is a bottom view showing the top plate structure of Sample No. 7.
- FIG. 12 is a bottom view showing the top plate structure of Sample No. 8.
- FIG. 13 is a bottom view showing the top plate structure of Sample No. 9.
- FIG. 14 is a bottom view showing the top plate structure of Sample No. 10.
- FIG. 15 is a bottom view showing the top plate structure of Sample No. 11.
- FIG. 16 is a bottom view showing the top plate structure of Sample No. 12.
- FIG. 17 is a bottom view showing the top plate structure of Sample No. 13.
- FIG. 18 is a bottom view showing the top plate structure of Sample No. 14.
- FIG. 19 A partial cross-sectional view showing the cross-sectional shape of the reinforcing rib in the sample top plate.
- FIG. 20 is a bottom view showing a top plate structure of an altitude installation type air conditioner that works in a third embodiment.
- FIG. 21 is a cross-sectional view taken along line 21-21 in FIG.
- FIG. 22 is a characteristic diagram showing the relationship between the depth of the reinforcing rib and the maximum deflection of the top plate in the top plate structure of the air conditioner according to the third embodiment.
- FIG. 23 is a characteristic diagram showing the relationship between the depth of the reinforcing ribs and the resonance rotational speed of the top plate in the top plate structure of the air conditioner according to the third embodiment.
- FIG. 25 is a bottom view showing a top plate structure of an air conditioner that is powerful in the fourth embodiment.
- FIG. 26 is a cross-sectional view taken along line 26-26 in FIG.
- FIG. 27 is a characteristic diagram showing the relationship between the analysis case combining the depths of the reinforcing ribs and the maximum deflection of the top plate in the top plate structure of the air conditioner according to the fourth embodiment.
- FIG. 28 is a characteristic diagram showing the relationship between the analysis case combining the depths of the reinforcing ribs in the top plate structure of the air conditioner according to the fourth embodiment and the resonance rotational speed of the top plate.
- FIG. 29 is a diagram showing the cause and effect of the maximum deflection in the top plate structure of the air conditioner that contributes to the fourth embodiment.
- FIG. 30 is a factor effect diagram of the primary resonance rotational speed in the top plate structure of the air conditioner that is effective in the fourth embodiment.
- FIG. 31 is a factor effect diagram of the secondary resonance rotational speed in the top plate structure of the air conditioner that is effective in the fourth embodiment.
- FIG. 33 is a bottom view showing a top plate structure of an air conditioner that works on a fifth embodiment.
- FIG. 34 is a cross-sectional view taken along line 34-34 in FIG.
- FIG. 35 is a characteristic diagram showing the relationship between the depth of the reinforcing rib and the maximum deflection of the top plate in the top plate structure of the air conditioner that is effective in the fifth embodiment.
- FIG. 36 is a characteristic diagram showing the relationship between the depth of the reinforcing rib and the resonance rotational speed of the top plate in the top plate structure of the air conditioner according to the fifth embodiment.
- FIG. 37 shows natural vibration modes in the top plate structure of the air conditioner that is effective in the fifth embodiment, (a) shows the case of the primary mode, and (b) shows the case of the secondary mode.
- FIG. 38 is a bottom view showing a top plate structure of an air conditioner that works on the sixth embodiment.
- FIG. 39 is a longitudinal cross-sectional view of a reinforcing rib in a top plate structure of an air conditioner that is powerful in the sixth embodiment.
- FIG. 40 is a bottom view showing a top plate structure of an air conditioner that is effective in a seventh embodiment.
- FIG. 41 is a central longitudinal sectional view showing the overall structure of a conventional air conditioner.
- FIG. 42 is a bottom view of the conventional air conditioner as viewed from below with the decorative panel and main body casing removed.
- FIG. 43 is an exploded perspective view showing a mounting relationship between a top plate portion of a conventional air conditioner, a bell mouth, a switch box, and the like.
- FIG. 1 and FIG. 2 show the top plate structure of an altitude installation type air conditioner that is helpful in the first embodiment of the present invention.
- This top plate 32 is optimal for application to the body casing 3 of the ceiling-embedded air conditioner (indoor unit) similar to the case of the conventional example shown in Figs. As configured.
- the thickness t is formed thinner (about 0.6 mm) than the conventional one (0.8 mm).
- the shape is formed in a substantially hexagonal shape corresponding to the shape of the cassette-type main casing 3 in the ceiling-embedded air conditioner.
- On the outer periphery of the ceiling 32 there is an edge portion 32c having a bowl-shaped cross section for fitting the top plate 32 to the outer peripheral side of the upper end portion of the heat insulating material 3a (see FIG. 41) constituting the side wall of the main body casing 3. It is provided.
- the top plate 32 is provided with five parallel reinforcing ribs 35 arranged in parallel to the width W direction of the top plate 32, and a flat portion is formed between them. ing.
- Each of the parallel reinforcing ribs 35 has a trapezoidal cross section.
- the rib width w is approximately equal to the distance D between the reinforcing ribs 35 and 35, and the depth H is 8.8 mm.
- the rib width w of the reinforcing rib 35 is more preferably 10%, which is preferably 5 to 15% of the width W of the top plate 32. If it is less than 5%, the number of reinforcing ribs becomes too large, making it difficult to form reinforcing ribs. If it exceeds 15%, the number of reinforcing ribs is insufficient and reinforcing ribs are formed. The effect is insufficient.
- a fan motor mounting portion 37 is formed at the center of the top plate 32.
- the top plate formed with a plurality of parallel reinforcing ribs 35 arranged in parallel as compared with the conventional product formed with radial reinforcing ribs. Since 32 has a smaller maximum deflection and a higher resonance speed, the static characteristics of an air conditioner installed at a high altitude are improved. Even if the thickness of the top plate 32 is made thinner than the conventional product, if the number and width of the parallel reinforcing ribs 35 are adjusted and set optimally, the maximum deflection can be reduced compared to the conventional product. The resonance rotational speed will be improved, and the cost of the top plate 32 can be expected to be reduced by reducing the material. In addition, since the primary natural frequency of the top plate 32 becomes higher, it becomes easier to take measures against noise generated by the vibration of the top plate 32 due to the rotation of the fan motor 9.
- FIG. 3 and FIG. 4 show the top plate structure of an altitude installation type air conditioner that can be used in the second embodiment of the present invention.
- the top plate 32 includes parallel reinforcing ribs 35 arranged in parallel, parallel parts 36a arranged in parallel, and non-parallel parts 36b in which end force of the parallel parts 36a is also extended at a predetermined angle.
- Non-parallel reinforcing ribs 36 are mixed. That is, in the width direction of the top 32, the outermost Parallel reinforcing ribs 35 are formed at the side position and the central position, and non-parallel reinforcing ribs 36 are formed so as to be positioned between the parallel reinforcing ribs 35.
- each non-parallel portion 36b of each non-parallel reinforcing rib 36 is extended at right angles from the respective end portions of the parallel portion 36a toward the outside.
- the space between the reinforcing ribs 35 and 36 is a flat portion, and each of the reinforcing ribs 35 and 36 has a trapezoidal cross section.
- the rib width w is approximately equal to the distance D between the reinforcing ribs 35 and 36, and the depth H is 8.8 mm.
- the rib width w of the reinforcing ribs 35 and 36 is more preferably 10%, which is desirably 5 to 15% of the width W of the top plate 32.
- the number of reinforcing ribs will be too large, making it difficult to form reinforcing ribs. If it exceeds 15%, the number of reinforcing ribs will be insufficient and reinforcing ribs will be formed. Effect is insufficient.
- the one located in the center has a straight line shape. If this is done, the rigidity of the part where the fan motor 9 is attached will be strengthened, the maximum deflection will be reduced, and the resonance rotational speed will be improved, further reducing the cost of the top plate by reducing the material. I can expect. Since other configurations are the same as those in the first embodiment, description thereof will be omitted.
- the parallel reinforcing rib 35 and the non-parallel reinforcing rib 36 are mixed in comparison with the conventional product in which the radial reinforcing ribs are formed.
- the top plate 32 formed in this way has a smaller maximum deflection and a higher resonance speed, which improves the static characteristics of the air conditioner installed at a high altitude.
- the top plate 32 is thinner than the conventional product, if the number and width of the parallel reinforcing ribs 35 and non-parallel reinforcing ribs 36 are adjusted and set optimally, The maximum deflection can be reduced and the resonance rotational speed can be improved, and the cost of the top plate can be expected to be reduced by reducing the material. Further, since the primary natural frequency of the top plate 32 becomes higher, it is easy to take measures against noise generated by the vibration of the top plate 32 due to the rotation of the fan motor 9. In addition, the presence of the non-parallel portion 36b can also prevent the occurrence of warpage during press calorie.
- the rib width w of each reinforcing rib and the distance D between the reinforcing ribs are substantially equal.
- the rib width w of each reinforcing rib and the distance D between the reinforcing ribs are set as follows. Each can be different. In such a case, the degree of freedom in setting rigidity (flexure characteristics), strength, and vibration characteristics in the top plate 32 is improved. [0048] (Experimental example)
- the top plate 32 has a plurality of main reinforcing ribs 32a having a predetermined width and a predetermined depth extending radially from the substantially central portion 33 to the outer peripheral portion and recessed downward.
- a stepped portion 32b that is located on the outer peripheral side of the reinforcing rib 32a and has a small downward depression depth, and a plurality of auxiliary reinforcing ribs 34 of a desired shape and size adjacent to the main reinforcing rib 32a are provided. It has been. That is, the configuration is almost the same as that of the conventional example shown in FIG.
- the depth of the reinforcing ribs 32a and 34 is 8.8 mm.
- the top plate 32 is provided with three parallel reinforcing ribs 35, and the width w of the parallel reinforcing rib 35 and the distance D between the parallel reinforcing ribs 35 are substantially equal.
- the depth H of the reinforcing rib 35 is 8.8 mm, which is the same as the conventional one (Sample No. 1).
- the top plate 32 is provided with four parallel reinforcing ribs 35, and the width w of the parallel reinforcing ribs 35 and the distance D between the parallel reinforcing ribs 35 are substantially equal.
- the depth H of the reinforcing rib 35 is 8.8 mm, which is the same as the conventional one (Sample No. 1).
- the top plate 32 is provided with five parallel reinforcing ribs 35, and the width w of the parallel reinforcing ribs 35 and the distance D between the parallel reinforcing ribs 35 are substantially equal.
- the depth H of the reinforcing rib 35 is 8.8 mm, which is the same as the conventional one (Sample No. 1).
- the top plate 32 is provided with six parallel reinforcing ribs 35, and the width w of the parallel reinforcing ribs 35 and the distance D between the parallel reinforcing ribs 35 are substantially equal.
- the top plate 32 is provided with seven parallel reinforcing ribs 35.
- the width w of the parallel reinforcing ribs 35 and the distance D between the parallel reinforcing ribs 35 are substantially equal.
- the depth H of the reinforcing rib 35 is 8.8 mm, which is the same as the conventional one (Sample No. 1).
- the top plate 32 is provided with eight parallel reinforcing ribs 35, and the width w of the parallel reinforcing ribs 35 and the distance D between the parallel reinforcing ribs 35 are substantially equal.
- the depth H of the reinforcing rib 35 is 8.8 mm, which is the same as the conventional one (Sample No. 1).
- the top plate 32 has nine parallel reinforcing ribs 35, and the width w of the parallel reinforcing ribs 35 and the distance D between the parallel reinforcing ribs 35 are substantially equal.
- the depth H of the reinforcing rib 35 is 8.8 mm, which is the same as the conventional one (Sample No. 1).
- the top plate 32 includes a parallel portion 36a located at the center in the width direction of the top plate 32, and a pair of non-parallel portions extending at right angles from both ends of the parallel portion 36a.
- a non-parallel reinforcing rib 36 consisting of 36b and 36b, a pair of U-shaped non-parallel reinforcing ribs 40 positioned outside the non-parallel reinforcing rib 36, and a rectangular shape positioned at the center of each non-parallel reinforcing rib 40.
- Reinforcement ribs 36, 38 which are provided with a force between the ribs 36, 38, 40 and the width w of the ribs 36, 38, 40 are substantially equal to the distance D between the ribs 36, 38, 4
- the depth ⁇ of 40 is 8.8 mm, the same as the conventional one (Sample No. 1).
- the top plate 32 has parallel reinforcing ribs 35 positioned at the outermost and center portions in the width direction of the top plate 32, and parallel portions 36a positioned between the parallel reinforcing ribs 35 and the parallel portions.
- Non-parallel reinforcing ribs 36 and 36 each having a non-parallel portion 36b extending outward at an angle of 45 ° are also provided at both ends of the portion 36a.
- the depth H of the reinforcing ribs 35 and 36, where the width w of the reinforcing ribs 35 and 36 and the distance D between the reinforcing ribs 35 and 36 are substantially equal, is 8.8 mm, the same as the conventional one (sample No. 1). Has been. [0060] (11) Sample No. 11
- a triangular shape is formed between the parallel reinforcing rib 35 located in the center in the width direction of the top plate 32 and the non-parallel portion 36b of the non-parallel reinforcing rib 36.
- Reinforcing ribs 39 are provided.
- the depth H of the reinforcing ribs 35 and 36, where the width w of the reinforcing ribs 35 and 36 and the distance D between the reinforcing ribs 35 and 36 are approximately equal, is 8.8 mm, the same as the conventional one (Sample No. 1). It is said that.
- the top plate 32 includes three parallel reinforcing ribs 35 located at the center in the width direction of the top plate 32, and parallel portions 36a located on the outermost side in the width direction of the top plate 32.
- the force at both ends of the parallel portion 36a is also provided with force by non-parallel reinforcing ribs 36 and 36 comprising a non-parallel portion 36b extending inwardly at an angle of 45 °.
- the depth H of the reinforcing ribs 35 and 36, where the width w of the strong ribs 35 and 36 and the distance D between the strong ribs 35 and 36 are substantially equal, is the same as the conventional one (Sample No. 1). 8.8 mm.
- the top plate 32 includes three parallel reinforcing ribs 35 positioned at the outermost and center portions in the width direction of the top plate 32, and parallel portions 36a positioned between the parallel reinforcing ribs 35. And non-parallel reinforcing ribs 36 and 36 are provided which extend outwardly at an angle of 90 ° from both ends of the parallel portion 36a.
- the depth H of the reinforcing ribs 35 and 36 where the width w of the reinforcing ribs 35 and 36 and the distance D between the reinforcing ribs 35 and 36 are substantially equal is 8.8 mm, which is the same as the conventional one (Sample No. 1). Has been.
- the top plate 32 is provided with a plurality of parallel reinforcing ribs 35 that are inclined at an angle of 45 ° with respect to the width direction of the top plate 32 and arranged in parallel.
- the depth H of the reinforcing rib 35 where the width w of the reinforcing rib 35 and the distance D between the reinforcing ribs 35 are substantially equal is set to 8.8 mm, which is the same as the conventional one (Sample No. 1).
- FIG. 19 shows a cross-sectional shape of the reinforcing rib in the sample top plate.
- Tables 1 to 4 show the results of the above analysis.
- Table 1 and Table 2 show the change in the maximum deflection of the top plate and the resonance speed due to the difference in the number of parallel reinforcing ribs (reinforcing ribs).
- the width w of the reinforcing rib 35 on the top plate 32 of sample No. 4, sample No. 5, sample NO. 6 and sample NO. 8 is 10.0% of the width W of the top plate 32, 8.2. It can be seen from Table 1 that they are%, 6.9%, and 5.3%.
- the width w of the parallel reinforcing ribs 35 is 5.0% of the width W of the top plate 32. , 8.0%, 7.0, 10.0
- the top plate 32 with parallel reinforcing ribs 35 arranged at equal intervals is used, assuming that the thickness of the top plate 32 is 0.7 mm, the maximum deflection of all of sample No. 2 to sample NO. If the thickness of the top plate 32 is 0.6 mm, the maximum deflection in Sample No. 4 to Sample No. 6 and Sample No. 8 will be superior to the conventional one.
- the highest order of rigidity is NO. 13, NO. 14, N O. 12, NO. 11, NO. 10, and NO. It can be seen that the rigidity of the top plate 32 is greatly influenced by the length of the reinforcing rib arranged near the center.
- the top plate 32 of the sample No. 13 in which the parallel reinforcing ribs 35 are arranged long in the vicinity of the center portion has a lower maximum deflection than the top plate 32 of the sample No. 9 in which the parallel reinforcing ribs 35 are arranged short, and the resonance rotational speed is improved.
- the maximum deflection and resonance speed of the top plate 32 of the conventional example (sample No. 1) in which radial reinforcing ribs and auxiliary reinforcing ribs are arranged are 1. 31mm respectively.
- the top plate 32 of No. 10-14 means that it exhibits excellent static characteristics with high rigidity.
- the width w of the reinforcing ribs 35 and 36 is The width 32 of plate 32 is set to 10.0%
- the plate thickness can be reduced.
- FIG. 20 and FIG. 21 show the top plate structure of an altitude installation type air conditioner that can be applied to the third embodiment of the present invention.
- the top plate 32 is a ceiling-embedded air conditioner (indoors) similar to the case of the conventional example shown in Figs. It is configured to be optimal for application to the unit casing 3.
- the plate thickness t is about 0.6 mm, which is thinner than the conventional one (0.8 mm), and the shape thereof is a ceiling-embedded type as shown in FIG. It is formed in a substantially hexagonal shape corresponding to the shape of the force-set type main body casing 3 in the air conditioner.
- a bowl-shaped edge portion 32c for fitting the top plate 32 is provided on the outer periphery of the upper end portion of the heat insulating material 3a (see FIG. 41) constituting the side wall of the main body casing 3.
- the top plate 32 is provided with five parallel reinforcing ribs 35 arranged parallel to the width W direction of the top plate 32, and a flat portion is formed between them. ing.
- Each of the parallel reinforcing ribs 35 has a trapezoidal cross section.
- the width w of the reinforcing rib 35 is equal to the distance D between the reinforcing ribs 35 and 35.
- the depth H is 7mn! It is set in the range of ⁇ 11mm.
- the width w of the reinforcing rib 35 is preferably 5% to 15% of the width W of the top plate 32, more preferably 10%.
- the top plate 32 includes a fan motor mounting portion 37.
- the top plate formed with a plurality of parallel reinforcing ribs 35 arranged in parallel as compared with the conventional product formed with radial reinforcing ribs. 32 has a smaller maximum deflection and a higher resonance speed. The static characteristics are improved. Even if the thickness of the top plate 32 is made thinner than the conventional product, if the number and width of the parallel reinforcing ribs 35 are adjusted and set optimally, the maximum deflection can be reduced compared to the conventional product. Resonance speed can be improved and cost reduction of top plate 32 can be expected due to material reduction.
- the depth H of each reinforcing rib 35 is set to 7mn! By setting it in the range of ⁇ 11mm, the maximum deflection can be reduced, the resonance rotational speed can be improved, and the cost of the top plate can be further reduced by reducing the material. As the depth H of each reinforcing rib 35 increases, the maximum deflection decreases and the resonance rotational speed increases.
- the upper limit is preferably set to 1 lmm in view of the design criteria. .
- the depth H of the reinforcing rib 35 is uniformly changed from 2.0 to 18. Omm. Specifically, the depth H of the reinforcing rib 35 is 6. Omm, the top plate is such that the width w of the reinforcing rib 35 and the distance D are substantially equal, and the depth H is changed. Perform analysis. When changing the depth H, the width w of the reinforcing rib is kept constant. That is, the greater the depth H, the narrower the distance D.
- Table 5 shows the results of maximum deflection and resonance speed of the top plate by I DEAS MS9m2 Model Solution based on the above analysis conditions.
- the fan motor mounting part can be It is presumed that it can be located at a node in the vibration mode. If this happens, the vibration of the top plate will not be excited by the excitation force of the fan motor.
- FIG. 25 and FIG. 26 show the top plate structure of an altitude installation type air conditioner that is effective in the fourth embodiment of the present invention.
- the top plate 32 is optimally applied to the body casing 3 of the air conditioner similar to the case of the conventional example shown in Figs. It is structured as a thing.
- the plate thickness t is thinner than the conventional one (0.8 mm) and is about 0.6 mm, and the shape thereof is as shown in FIG. 25 in the ceiling-embedded air conditioner.
- the shape of the cassette-type main body casing 3 it is formed in a substantially hexagonal shape.
- the top plate 32 is fitted to the outer periphery of the upper end of the heat insulating material 3a of the main casing 3 (see FIG. 41).
- a bowl-shaped edge 32c is provided for the purpose.
- the top plate 32 is provided with five parallel reinforcing ribs 35A to 35D arranged in parallel with the width W direction of the top plate 32, and a flat portion is formed between them. ing.
- the parallel reinforcing ribs 35A to 35D have a trapezoidal cross section, and the depth H is different in the reinforcing ribs 35A, 35B, 35 C, and 35D. It is set in the range of ⁇ 11mm.
- the width w of the reinforcing rib 35 is preferably 5 to 15% of the width W of the top plate 32, and is preferably 10%. If it is less than 5%, the number of reinforcing ribs will increase too much and it will be difficult to form reinforcing ribs. If it exceeds 15%, the number of reinforcing ribs will be insufficient and reinforcing ribs will be formed. Effect is insufficient.
- Reference numeral 37 denotes a fan motor mounting portion.
- the plate thickness is the same as that of the conventional product, a plurality of parallel reinforcing ribs 35A to 35D arranged in parallel are formed compared to the conventional product in which the radial reinforcing ribs are formed.
- the top plate 32 has a smaller maximum deflection and a higher resonance speed, which improves the static characteristics of the air conditioner. Even if the top plate 32 is made thinner than the conventional product, the maximum deflection is reduced compared to the conventional product if the number and width of the parallel reinforcing ribs 35A to 35D are adjusted and set optimally. In addition, the resonance rotational speed is improved, and the cost of the top plate 32 can be expected to be reduced by reducing the material.
- the depth H of the reinforcing ribs 35A to 35D is set in the range of 7 mm to: L lm m, so that the maximum deflection can be reduced and the resonance rotational speed is improved.
- the cost of the top plate can be further reduced by reducing the material.
- the upper limit is preferably set to 11 mm in consideration of the design criteria.
- the depths H of the reinforcing ribs 35A to 35D are made different. In this way, the maximum deflection can be reduced and the resonance rotational speed can be improved, so that the cost of the top plate can be further reduced by reducing the material. Note that the depth H of the reinforcing rib 35A located in the center may be different from the depth H of the other reinforcing ribs 35B to 35D.
- Figs. Table 8 and Fig. 32 show the contribution ratio of the reinforcing ribs 35A to 35D to the large deflection and the resonance speed.
- FIG. 33 and FIG. 34 show the top plate structure of an air conditioner installed at a high altitude, which is effective in the fifth embodiment.
- the top board 32 is the same as that of the conventional ceiling-type air conditioner (indoor unit) shown in Figs. It is configured as the most suitable for the main casing 3.
- the thickness t is thinner than the conventional one (0.8 mm) and is about 0.6 mm, and the shape is as shown in FIG.
- the cassette type main body is formed in a substantially hexagonal shape corresponding to the shape of the casing 3.
- an edge portion 32c having a bowl-shaped cross section for fitting the top plate 32 to the outer periphery of the upper end portion of the heat insulating material 3a (see FIG. 41) constituting the side wall of the main casing 3 is provided. Is provided.
- the top plate 32 is provided with five parallel reinforcing ribs 35A to 35E arranged in parallel with the width W direction of the top plate 32, and a flat portion is provided between them. It is said that.
- the parallel reinforcing ribs 35A to 35E have a trapezoidal cross section and project alternately on the front side or the back side of the top plate. In this way, since the maximum deflection can be further reduced, the top plate cost can be further reduced by reducing the material.
- the depth of the reinforcing ribs 35A to 35E is set in the range of 7 mm to L mm.
- the width w of the reinforcing rib 35 is preferably 5 to 15% of the width W of the top plate 32, more preferably 10%.
- Reference numeral 37 denotes a fan motor mounting portion.
- the cost of the top plate 32 can be expected to be reduced by reducing the material. Further, since the primary natural frequency of the top plate 32 becomes higher, it is easy to take measures against noise generated by the vibration of the top plate 32 due to the rotation of the fan motor 9.
- the depth H of the reinforcing ribs 35A to 35E is 7 mm or more: L lmm
- each of the reinforcing ribs 35A to 35E may be different. In this way, the maximum deflection can be reduced and the resonance rotational speed can be improved, so that the cost of the top plate can be further reduced by reducing the material. You may make it make the depth H of the reinforcing rib 35A located in the center different from the depth H of the other reinforcing ribs 35B-35E.
- the reinforcing ribs 35A to 35E protrude alternately on the front side and the back side of the top plate.
- the top plates were fabricated, and their maximum deflection (static characteristics) and resonance speed (dynamic characteristics) were analyzed.
- Figures 37 (a) and 37 (b) show the primary and secondary natural vibration modes of the top plate. From Table 9 and Figures 35 to 37, the following findings were obtained.
- a top plate having double-sided ribs formed with reinforcing ribs 35A to 35E protruding on both sides of the top plate as compared to a single-sided rib formed with a plurality of reinforcing ribs 35 protruding only on one side of the top plate is:
- the maximum deflection was reduced.
- the depth of the reinforcing ribs 35A to 35E is 8.0.
- the maximum deflection of the top plate with single-sided ribs is 1.03 mm
- the maximum deflection of the top plate with double-sided ribs is 0.75 mm, a decrease of 27.2%.
- FIG. 38 and FIG. 39 show the top plate structure of an altitude installation type air conditioner that is powerful in the sixth embodiment.
- the top panel 32 is a ceiling-embedded air conditioner (indoor unit) similar to the conventional example shown in Figs. It is configured as the most suitable for the main casing 3.
- the thickness t is thinner than the conventional one (0.8 mm) and is about 0.6 mm, and the shape is as shown in FIG. Corresponding to the shape of the casing 3 of the cassette type body in FIG. On the outer periphery of the ceiling 32, there is an edge portion 32c having a bowl-shaped cross section for fitting the top plate 32 to the outer periphery of the upper end portion of the heat insulating material 3a (see FIG. 41) constituting the side wall of the main body casing 3. Is provided.
- the top plate 32 is provided with five parallel reinforcing ribs 35 arranged in parallel with the width W direction of the top plate 32, and a flat portion is formed between them.
- the parallel reinforcement The hub 35 has a trapezoidal cross section, and each of the reinforcing ribs 35 is configured to be deep at the central portion shallow at both ends in the longitudinal direction, as shown in FIG.
- the depth of both ends of each reinforcing rib 35 is indicated by HI, and the depth of the central portion is indicated by HO. That is, in the present embodiment, each reinforcing rib 35 has a ship bottom shape in the longitudinal direction.
- FIG. 40 shows a top plate structure of an air conditioner installed at a high altitude, which is effective in the seventh embodiment.
- the top panel 32 is a ceiling-embedded air conditioner (indoor unit) similar to the conventional example shown in Figs. It is configured as the most suitable for the main casing 3.
- the plate thickness t is thinner than the conventional one (0.8 mm) and is about 0.6 mm, and the shape is as shown in FIG.
- the cassette type main body is formed in a substantially hexagonal shape corresponding to the shape of the casing 3.
- On the outer periphery of the ceiling 32 there is an edge portion 32c having a bowl-shaped cross section for fitting the top plate 32 to the outer periphery of the upper end portion of the heat insulating material 3a (see FIG. 41) constituting the side wall of the main body casing 3. Is provided.
- the top plate 32 is formed with a mixture of two parallel reinforcing ribs 35, 35 aligned in parallel on the outside and non-parallel reinforcing ribs 36.
- the non-parallel reinforcing rib 36 includes a parallel portion 36a aligned in parallel with the parallel reinforcing rib 35, and a non-parallel portion 36b extended with a predetermined angle ex as an end force of the parallel portion 36a.
- Parallel reinforcing ribs 35 are formed at the outermost position in the width direction of the top plate 32, and three non-parallel reinforcing ribs 36 are formed between the parallel reinforcing ribs 35.
- a flat portion is formed between the parallel reinforcing rib 35 and the non-parallel reinforcing rib 36 and between the non-parallel reinforcing ribs 36 and 36.
- Each of the reinforcing ribs 35, 36 has a trapezoidal cross section, and the width w of each reinforcing rib 35, 36 is reinforced.
- the depth H equal to the distance D between the ribs 35 and 36 is 8.8 mm.
- the width w of each of the reinforcing ribs 35, 36 is preferably 5 to 15% of the width W of the top plate 32, but more preferably 10%. If it is less than 5%, the number of reinforcing ribs becomes too large, making it difficult to form reinforcing ribs. If it exceeds 15%, the number of reinforcing ribs is insufficient and reinforcing ribs are formed. The effect is insufficient.
- the central one of the plurality of reinforcing ribs 35 and 36 is configured to have a straight line shape. This stiffening enhances the rigidity of the part where the fan motor 9 is attached, reduces the maximum deflection, and improves the resonance speed, further reducing the cost of the top plate due to material reduction. it can. Since other configurations are the same as those in the first embodiment, description thereof will be omitted.
- the width w of each reinforcing rib and the distance D between the reinforcing ribs are substantially equal.
- the width w of each reinforcing rib and the distance D between the reinforcing ribs are set as follows. Each can be made different. In such a case, the degree of freedom in setting the rigidity (deflection characteristics), strength, and vibration characteristics of the top plate 32 is improved.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/661,944 US7805957B2 (en) | 2004-09-08 | 2005-09-01 | Top plate structure for air conditioner installed at high location |
AU2005281152A AU2005281152C1 (en) | 2004-09-08 | 2005-09-01 | Top plate structure for air conditioner installed at high location |
CN2005800293694A CN101014805B (zh) | 2004-09-08 | 2005-09-01 | 高处设置型空调机的顶板结构 |
EP05781549A EP1795820A4 (en) | 2004-09-08 | 2005-09-01 | UPPER PLATE STRUCTURE FOR HIGH-LEVEL AIR CONDITIONING INSTALLED |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-261221 | 2004-09-08 | ||
JP2004261221 | 2004-09-08 | ||
JP2004355447A JP3807436B2 (ja) | 2004-09-08 | 2004-12-08 | 高所設置型空気調和機の天板構造 |
JP2004-355447 | 2004-12-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006027993A1 true WO2006027993A1 (ja) | 2006-03-16 |
Family
ID=36036278
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/016001 WO2006027993A1 (ja) | 2004-09-08 | 2005-09-01 | 高所設置型の空気調和機の天板構造 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7805957B2 (ja) |
EP (1) | EP1795820A4 (ja) |
JP (1) | JP3807436B2 (ja) |
KR (1) | KR20070050485A (ja) |
CN (1) | CN101014805B (ja) |
AU (1) | AU2005281152C1 (ja) |
WO (1) | WO2006027993A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101280503B (zh) * | 2007-04-06 | 2011-02-09 | 博西华电器(江苏)有限公司 | 顶盖结构以及使用该顶盖结构的滚筒洗衣机 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4884781B2 (ja) * | 2006-01-17 | 2012-02-29 | 三菱重工業株式会社 | 空気調和装置用キャビネット及びこれを用いた空気調和装置 |
EP2023049B1 (en) * | 2007-07-25 | 2013-10-30 | Sanyo Electric Co., Ltd. | In-ceiling mount type air conditioner and indoor unit thereof |
JP4305559B2 (ja) * | 2007-12-27 | 2009-07-29 | ダイキン工業株式会社 | 空気調和機用室内機 |
FR2947040B1 (fr) * | 2009-06-23 | 2014-01-03 | Cinier Radiateurs | Radiateur reversible |
JP2011257068A (ja) * | 2010-06-09 | 2011-12-22 | Mitsubishi Heavy Ind Ltd | 空気調和装置用キャビネット及びこれを用いた空気調和装置 |
FR2989770B1 (fr) * | 2012-04-19 | 2018-06-15 | Valeo Systemes Thermiques | Couvercle de faisceau d'echangeur de chaleur, faisceau comprenant un tel couvercle, echangeur de chaleur comprenant un tel faisceau et module d'admission d'air comprenant un tel echangeur. |
CN103375901B (zh) * | 2012-04-28 | 2016-12-14 | 苏州三星电子有限公司 | 空调器室外机顶盖板 |
KR102285281B1 (ko) * | 2014-01-02 | 2021-08-02 | 엘지전자 주식회사 | 공기조화기 |
JP6323143B2 (ja) * | 2014-04-22 | 2018-05-16 | 新日鐵住金株式会社 | 室内機用天板 |
KR102337163B1 (ko) | 2014-11-12 | 2021-12-09 | 삼성전자주식회사 | 덕트형 공기조화장치 및 그 조립 및 분해방법 |
CN107143938A (zh) * | 2017-07-10 | 2017-09-08 | 珠海格力电器股份有限公司 | 室外机顶盖、室外机以及空调器 |
TWI647411B (zh) * | 2017-09-27 | 2019-01-11 | 日商夏普股份有限公司 | Mounting plate |
CN108917038A (zh) * | 2018-10-11 | 2018-11-30 | 奥克斯空调股份有限公司 | 一种空调室外机顶盖板及空调器 |
US11460143B2 (en) * | 2019-05-21 | 2022-10-04 | Whirlpool Corporation | Collapsible pattern |
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JPH07139753A (ja) | 1993-11-12 | 1995-05-30 | Hitachi Ltd | 空気調和機の室内機 |
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KR100405982B1 (ko) * | 2001-02-12 | 2003-11-14 | 엘지전자 주식회사 | 천정형 공조기의 유로 구조 |
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- 2004-12-08 JP JP2004355447A patent/JP3807436B2/ja not_active Expired - Fee Related
-
2005
- 2005-09-01 KR KR1020077006360A patent/KR20070050485A/ko not_active Application Discontinuation
- 2005-09-01 CN CN2005800293694A patent/CN101014805B/zh not_active Expired - Fee Related
- 2005-09-01 WO PCT/JP2005/016001 patent/WO2006027993A1/ja active Application Filing
- 2005-09-01 AU AU2005281152A patent/AU2005281152C1/en not_active Ceased
- 2005-09-01 EP EP05781549A patent/EP1795820A4/en not_active Withdrawn
- 2005-09-01 US US11/661,944 patent/US7805957B2/en not_active Expired - Fee Related
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JPH06221606A (ja) * | 1993-01-26 | 1994-08-12 | Hitachi Ltd | 空気調和機の室内機 |
JPH0791681A (ja) * | 1993-09-24 | 1995-04-04 | Hitachi Ltd | 空気調和機の防振構造 |
JPH07293925A (ja) * | 1994-04-22 | 1995-11-10 | Hitachi Ltd | 空気調和機の室内機 |
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Also Published As
Publication number | Publication date |
---|---|
CN101014805A (zh) | 2007-08-08 |
AU2005281152C1 (en) | 2011-03-17 |
EP1795820A1 (en) | 2007-06-13 |
JP2006105573A (ja) | 2006-04-20 |
AU2005281152A1 (en) | 2006-03-16 |
AU2005281152B2 (en) | 2009-01-08 |
US20080072613A1 (en) | 2008-03-27 |
JP3807436B2 (ja) | 2006-08-09 |
US7805957B2 (en) | 2010-10-05 |
CN101014805B (zh) | 2010-05-05 |
EP1795820A4 (en) | 2012-09-26 |
KR20070050485A (ko) | 2007-05-15 |
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