EP1143205A2 - Air conditioner - Google Patents
Air conditioner Download PDFInfo
- Publication number
- EP1143205A2 EP1143205A2 EP01108411A EP01108411A EP1143205A2 EP 1143205 A2 EP1143205 A2 EP 1143205A2 EP 01108411 A EP01108411 A EP 01108411A EP 01108411 A EP01108411 A EP 01108411A EP 1143205 A2 EP1143205 A2 EP 1143205A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- air conditioner
- dewdrop
- motor
- side wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F17/00—Removing ice or water from heat-exchange apparatus
- F28F17/005—Means for draining condensates from heat exchangers, e.g. from evaporators
-
- 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
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
-
- 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
- F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
-
- 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
- F24F1/0067—Indoor units, e.g. fan coil units characterised by heat exchangers by the shape of the heat exchangers or of parts thereof, e.g. of their fins
-
- 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
- F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
-
- 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
-
- 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
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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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
- F24F2013/205—Mounting a ventilator fan therein
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Abstract
Description
- The present invention relates to an air conditioner.
- Fig. 16 is a principal sectional view of a conventional air conditioner, for example, disclosed in JP-U-4-68921. Figs. 17 and 18 are principal side views showing the internal structure of the conventional air conditioner. In Figs. 16 to 18, the
reference numeral 101 designates an air conditioner proper; 102, the housing of theair conditioner body 101; 103, a decorative panel; 104, a heat exchanger side wall plate; 105, a heat insulating material; 106, an air outlet; 107, an air blowing passageway; 108, an air filter; 109, a heat exchanger; 110, a fan; 111, a wind direction plate; and 112, a saucer. Incidentally, the surface of the heat exchangerside wall plate 104 is flat. - In the case of the above-mentioned structure, as shown in Fig. 17,
dewdrops 115 formed by condensation on the flat surface of the heat exchangerside wall plate 104 flow downward on the surface of the heat exchangerside wall plate 104. In a stepped portion of the heat exchangerside wall plate 104, however, thedewdrops 115 are frequently apt to cease flowing on the surface of the heat exchangerside wall plate 104 and drop down to the outside of thesaucer 112. - If the
dewdrops 115 dropped down to the outside of thesaucer 112 in this way, there was a case that thedewdrops 115 leaked to the outside of thehousing 102 of the air conditioner proper 101. In order to prevent thedewdrops 115 from dropping down to the outside of thesaucer 112, conventionally, as shown in Fig. 18, theheat insulating material 105 was applied to the surface of the heat exchangerside wall plate 104 so as to prevent the surface of the heat exchangerside wall plate 104 from sweating. - However, the conventional air conditioner as described above was designed so that the
heat insulating material 105 was applied to the surface of the heat exchangerside wall plate 104 in order to prevent the surface of the heat exchangerside wall plate 104 from sweating. Accordingly, there has been such a problem that the number of component parts and the number of operation processes increase and the recycling performance deteriorates. - In the meantime, Fig. 19 is a principal sectional view of a conventional indoor unit of an air conditioner which is, for example, disclosed in JP-A-10-61964. In the drawing, the
reference numeral 31 designates the housing of the indoor unit; 33, a line flow fan disposed in the air passageway of thehousing 31; 34, a motor for driving theline flow fan 33; 35, a casing of a motor receiving portion; 37, a partition plate for partitioning the air passageway from a motor receiving space; 49, a boss for fixedly connecting theline flow fan 33 and themotor 34; and 48, a shaft cover surrounding the shaft of themotor 34. One side of theshaft cover 48 is fitted over the outer circumference of a bearing rubber cushion of themotor 34 while the other side of theshaft cover 48 is fitted into thepartition plate 37. - In this construction, the outer circumference of the motor shaft is covered with the
tubular shaft cover 48. The anti-engine side of theshaft cover 48 is fitted into a receiving hole disposed between thehousing 31 and thepartition plate 37, which partition the air passageway for the air passing through a heat exchanger from the motor receiving space. Thus, the receiving hole is shielded so that the outside air is prevented from entering the air passageway through this receiving hole. Thus, the line flow fan and the like are prevented from sweating. - Since the receiving hole for the motor shaft was arranged to be shielded from wind as described above in the conventional air conditioner, the portion where the line flow fan was fixed to the motor was provided on the air passageway side. In addition, the gap between the air passageway partition plate and the line flow fan therefore became so large that there might arise a fault such as high wind noise or the like. Further, for measures against such a fault, a fastening screw had to be provided inside the fan rather than the side wall of the line flow fan. Therefore, the blade of the line flow fan had to be cut to make a hole where a screw fastening tool such as a driver or the like could be inserted, or the blade of the line flow fan had to be partly omitted, so as to provide a fastening screw fixing portion. Thus, the fastening screw fixing portion was the cause to prevent stable air blowing of the line flow fan.
- It is an object of the present invention to provide an air conditioner in which dewdrops can be collected positively without applying any heat insulating material to any portion which sweats. The object is accompanied by the constructions as stated in
claims 1 to 4. - It is another object of the present invention to prevent a line flow fan from sweating by receiving a partition plate and the side wall of the line flow fan with a minimal gap therebetween so as to ensure improvement in the air blowing characteristics. Further, it is another object of the present invention to make it possible to assemble these component parts easily. These objects are accompanied by the constructions as stated in
claims 5 to 7. -
- Fig. 1 is a principal perspective view showing the
interior of an air conditioner of
Embodiment 1 according to the present invention. - Fig. 2 shows side views of a heat exchanger side wall plate having a flat surface and a heat exchanger side wall plate having a continuously corrugated rough portion formed on its surface.
- Fig. 3 shows enlarged diagrams each showing the continuously corrugated rough portion formed on the surface of the heat exchanger side wall plate shown in Fig. 2.
- Fig. 4 is a principal side view showing the interior of the air conditioner shown in Fig. 1.
- Fig. 5 is a principal sectional view showing the interior
of an air conditioner of
Embodiment 2 according to the present invention. - Fig. 6 is a principal sectional view showing the interior
of a modified air conditioner of
Embodiment 2 according to the present invention. - Fig. 7 is a side view of a heat exchanger side wall plate on which a rough portion having a shape other than a continuously corrugated shape, that is, a continuous triangular shape, is formed.
- Fig. 8 is a side view of a heat exchanger side wall plate on which a rough portion having a shape other than a continuously corrugated shape, that is, a continuous square shape, is formed.
- Fig. 9 is a principal perspective view of an air
conditioner showing Embodiment 3 of the present invention. - Fig. 10 is a partially cutaway perspective view of an air
conditioner indoor unit according to
Embodiment 4 of the present invention. - Fig. 11 is a principal enlarged perspective
view showing Embodiment 4 of the present invention. - Fig. 12 is a principal plan
view showing Embodiment 4 of the present invention. - Fig. 13 is a principal sectional
view showing Embodiment 4 of the present invention. - Fig. 14 is a principal sectional
view showing Embodiment 5 of the present invention. - Fig. 15 is a principal perspective
view showing Embodiment 6 of the present invention. - Fig. 16 is a principal sectional view of an air conditioner showing the prior art.
- Fig. 17 is a principal side view of the air conditioner showing the prior art.
- Fig. 18 is a principal side view of the air conditioner showing the prior art.
- Fig. 19 is a principal enlarged view of a conventional air conditioner indoor unit.
-
- Embodiments of the present invention will be described below with reference to the drawings.
- Fig. 1 is a principal perspective view showing the interior of an air conditioner of
Embodiment 1 according to the present invention. Figs. 2(a) and 2(b) are a side view of a heat exchanger side wall plate the surface of which is flat, and a side view of a heat exchanger side wall plate on the surface of which a continuously corrugated rough portion is formed, respectively. Figs. 3(a) and 3(b) are enlarged views showing the continuously corrugated rough portion formed on the surface of the heat exchanger side wall plate shown in Fig. 2(b). Fig. 4 is a principal side view showing the interior of the air conditioner shown in Fig. 1. Fig. 2(a) shows the heat exchanger side wall plate the surface of which is flat, and Fig. 2(b) shows the heat exchanger side wall plate on which a continuously corrugated rough portion is formed. - In Figs. 1 to 4, the
reference numeral 1 designates an air conditioner proper; 2, the housing of the air conditioner proper 1; and 3, a heat exchanger disposed in thehousing 2. Thereference numeral 4 designates a heat exchanger side wall plate formed on the side wall of theheat exchanger 3; 4a, a rough portion which has, for example, a continuously corrugated shape, and which is formed on the surface of the heat exchangerside wall plate 4 in a direction in which dewdrops 5 flow, so as to restrain thedewdrops 5 from flowing; 6, a saucer disposed under theheat exchanger 3 for collecting thedewdrops 5 formed on the heat exchangerside wall plate 4. - The continuously corrugated
rough portion 4a formed on the surface of the heat exchangerside wall portion 4 is formed in the direction in which thedewdrops 5 flow, so that the pitch of the irregularities is set to be, for example, 6 mm, and the height of the irregularities is set to be, for example, 1 mm. Therough portion 4a formed on the surface of the heat exchangerside wall plate 4 with such pitch and height can be made to serve as an obstacle to the flow of thedewdrops 5 so as to restrain thedewdrops 5 from flowing. - A
dewdrop 5 formed on the external surface of the heat exchangerside wall plate 4 is reduced in quantity gradually whenever thedewdrop 5 gets over one raised area (ridge) of the continuously corrugatedrough portion 4a, as shown in Figs . 3(a) and 3(b). Fig. 3(a) shows the state where thedewdrop 5 formed on therough portion 4a has not yet got over a ridge of therough portion 4a, and Fig. 3(b) shows the state where thedewdrop 5 formed on therough portion 4a has partially got over one ridge of therough portion 4a and has been separated into two parts in the front and back of the ridge so that the quantity of thedewdrop 5 in the travelling direction has been reduced. - The quantity of the
dewdrop 5 is reduced gradually whenever thedewdrop 5 sequentially gets over one ridge of therough portion 4a formed continuously. As a result, the flowing force of thedewdrop 5 is restrained. On the other hand, with respect to the retaineddewdrop 5 which has not got over one ridge of therough portion 4a, if another dewdrop is formed newly and joined to the retaineddewdrop 5, or if another dewdrop gets over the previous ridge and is joined to the retaineddewdrop 5, the quantity of the retaineddewdrop 5 increases so that the retaineddewdrop 5 begins to flow. - Then, in the same manner, the quantity of the
dewdrop 5 now flowing is reduced gradually whenever thedewdrop 5 gets over one ridge of therough portion 4a. Thus, the flowing force of thedewdrop 5 is restrained. If the retaineddewdrop 5 is newly joined by nodewdrop 5, thedewdrop 5 will not begin to flow. In such a case, the retaineddewdrop 5 evaporates naturally without separating and dropping down from the surface of the heat exchangerside wall plate 4. - In this embodiment, the
rough portion 4a for preventing thedewdrop 5 from flowing is thus formed continuously on the external surface of the heat exchangerside wall plate 4. As a result, thedewdrop 5 formed on the surface of therough portion 4a on the external surface of the heat exchangerside wall plate 4 can be reduced in quantity gradually whenever thedewdrop 5 gets over one raised are (ridge) of the continuously corrugatedrough portion 4a, as shown in Figs. 3(a) and 3(b). Thus, the flowing force of thedewdrop 5 can be restrained. - As a result, as shown by the arrows A1 and A2 in Fig. 4, the
dewdrop 5 flowing toward thesaucer 6 can be made difficult to separate from the surface of the heat exchangerside wall plate 4 and hence difficult to drop down to the outside of thesaucer 6. In addition, in this embodiment, the flowing force of thedewdrop 5 can be restrained when thedewdrop 5 is collected in thesaucer 6. Accordingly, thedewdrop 5 can be dropped down into thesaucer 6 so slowly that thedewdrop 5 is made difficult to splash on the surface of thesaucer 6. Thus, thedewdrop 5 can be restrained from being discharged to the outside of thesaucer 6. - Therefore, the
dewdrop 5 can be collected in thesaucer 6 efficiently without applying any heat insulating material to the surface of the heat exchangerside wall plate 4 which sweats. In addition, because heat insulating material which has been required in the past can be omitted, it is possible to prevent the number of parts and the number of component operation processes from increasing and the recycling performance from deteriorating due to such heat insulating material. - In addition, in this embodiment, as shown in Fig. 1, in the case where the indoor unit in the
housing 2 has a limit in height and depth, theheat exchanger 3 is set back and bent in the lower portion thereof to thereby ensure the required surface area of theheat exchanger 3 in order to improve the performance while keeping the limit. Thus, thesaucer 6 can be set deep inside from the end face of the heat exchangerside wall plate 4. - At this time, if the force of the
dewdrop 5 formed on the heat exchangerside wall plate 4 were strong, thedewdrop 5 would separate and drop down from the surface in the set-back portion of the lower portion of theheat exchanger 3. However, in this embodiment, as shown in Fig. 2(b), because therough portion 4a for restraining thedewdrop 5 from flowing is formed continuously on the external surface of the heat exchangerside wall plate 4, thedewdrop 5 formed on the surface of therough portion 4a on the external surface of the heat exchangerside wall plate 4 can be reduced in quantity gradually whenever thedewdrop 5 gets over one raised area (ridge) of the continuously corrugatedrough portion 4a as shown in Figs. 3(a) and 3(b). Thus, the flowing force of thedewdrop 5 can be restrained. - Accordingly, even in such a case where the
heat exchanger 3 is designed to be set back in the lower portion thereof, thedewdrop 5 flowing toward thesaucer 6 can be made difficult to separate from the surface of the heat exchangerside wall plate 4 as shown by the arrows A1 and A2 in Fig. 4. As a result, thedewdrop 5 can be made to flow down to the lowermost portion of the heat exchangerside wall plate 4 while being adhering to the surface of the heat exchangerside wall plate 4, so that thedewdrop 5 can be made difficult to drop down to the outside of thesaucer 6. - In addition, in this embodiment, as shown in Fig. 1, in the case where the indoor unit in the
housing 2 has a limit in height and depth, theheat exchanger 3 is designed to be bent in multiple steps to thereby ensure the required surface area of theheat exchanger 3 in order to improve the performance while keeping the limit. At this time, if the force of thedewdrop 5 formed on the surface of the heat exchangerside wall plate 4 were strong, thedewdrop 5 in each stepped portion of theheat exchanger 3 would splash and drop down as it is. - However, in this embodiment, as shown in Fig. 2(b), because the
rough portion 4a for restraining thedewdrop 5 from flowing is formed continuously on the external surface of the heat exchangerside wall plate 4, thedewdrop 5 formed on the surface of therough portion 4a on the external surface of the heat exchangerside wall plate 4 can be reduced in quantity gradually whenever thedewdrop 5 gets over one raised area (ridge) of the continuously corrugatedrough portion 4a as shown in Figs. 3(a) and 3(b). Thus, the flowing force of thedewdrop 5 can be restrained. - Accordingly, even in such a case where the
heat exchanger 3 is designed to be bent in multiple steps, thedewdrop 5 flowing toward thesaucer 6 can be likewise made difficult to separate from the surface of the heat exchangerside wall plate 4 as shown by the arrows A1 and A2 in Fig. 4. As a result, thedewdrop 5 in the stepped portion can be restrained from splashing. Thus, thedewdrop 5 can be restrained from dropping down. - In
Embodiment 1, therough portion 4a formed on the surface of the heat exchangerside wall plate 4 was formed in the direction in which thedewdrop 5 flows. However, therough portion 4a may be formed in any direction by which the flow of thedewdrop 5 can be restrained. - In
Embodiment 1, therough portion 4a was designed to be formed to have irregularities with a preferable pitch and a preferable height as an obstacle to the flow of thedewdrop 5 so as to prevent thedewdrop 5 from flowing. However, in brief, therough portion 4a is only required to be able to become an obstacle to the flow of thedewdrop 5 so as to prevent thedewdrop 5 from flowing. Accordingly, therough portion 4a may be formed to have different values in irregularity pitch and irregularity height from the aforementioned preferable values. - The description was made above on
Embodiment 1 about the case which was preferable in the point that the continuously corrugatedrough portion 4a was formed on the external surface of the heat exchangerside wall plate 4 so that thedewdrop 5 formed on the external surface of the heat exchangerside wall plate 4 could be efficiently prevented from dropping down from the external surface of the heat exchangerside wall plate 4 to the outside of thesaucer 6. However, in brief, therough portion 4a which can restrain thedewdrop 5 from flowing is only required to be formed selectively on the surface of the heat exchangerside wall plate 4 so that thedewdrop 5 formed on the surface of the heat exchangerside wall plate 4 can be prevented from separating therefrom and dropping down to a place which is the outside of thesaucer 6. For example, therough portion 4a for restraining thedewdrop 5 from flowing may be designed to be formed all over the surface of the heat exchangerside wall plate 4. In this case, thedewdrops 5 formed on the whole surface of the heat exchangerside wall plate 4 can be efficiently restrained from flowing. - Figs. 5 and 6 are principal sectional views showing the interior of an air conditioner of
Embodiment 2 according to the present invention. Thereference numeral 7 designates an air outlet of an air conditioner proper 1; 8, an air blowing passageway provided in ahousing 2 of the air conditioner proper 1; 9 and 10, an air filter and a fan disposed in thehousing 2, respectively; and 11, a decorative panel of the air conditioner proper 1. - In
Embodiment 1, the description was made about the case where the sectional shape of theheat exchanger 3 was designed so that the lower portion thereof was set back and theheat exchanger 3 was bent in multiple steps. However, as in this embodiment, theheat exchanger 3 may be designed to have a sectional shape formed like a straight line shape as shown in Fig. 5, or to have a sectional shape formed like an inverted-V shape as shown in Fig. 6. On the side wall plate surface of theheat exchanger 3 in Fig. 5 or 6, a continuously corrugatedrough portion 4a similar to that shown in Fig. 2(b) is formed in the same manner as inEmbodiment 1. - As shown in Fig. 5 or 6, when the
heat exchanger 3 has a sectional shape like a straight line shape or an inverted-V shape, and if the force of a dewdrop formed on the surface of the heat exchangerside wall plate 4 is strong, it is necessary to increase the depth dimension of asaucer 6 on thedecorative panel 11 side in consideration of the fact that the dewdrop splashes when it separates from the surface of the heat exchangerside wall plate 4. However, in this embodiment, therough portion 4a for restraining adewdrop 5 from flowing is designed to be formed continuously on the surface of the heat exchangerside wall plate 4, as shown in Fig. 2(b), in the same manner as inEmbodiment 1. Accordingly, as shown in Figs. 3(a) and 3(b), thedewdrop 5 formed on the surface of therough portion 4a on the surface of the heat exchangerside wall plate 4 can be reduced in quantity gradually whenever thedewdrop 5 gets over one raised area (ridge) of the continuously corrugatedrough portion 4a. Thus, the flowing force of thedewdrop 5 can be restrained and dropping of thedewdrop 5 to the outside of thesaucer 6 is prevented. In addition, since the depth of thesaucer 6 on thedecorative panel 11 side can be reduced, it is possible to reduce the influence of thesaucer 6 on the depth of the indoor unit. - Incidentally, the description was made above on
Embodiments rough portion 4a formed on the surface of the heat exchangerside wall plate 4 was formed to have a continuous corrugated shape which was preferable as the shape of an obstacle to the flow of thedewdrop 5 as shown in Fig. 2(b). However, as for example, a rough portion 4b formed on the surface of the heat exchangerside wall plate 4 may be designed to be formed into a continuous triangular shape as shown in Fig. 7, or a rough portion 4c formed on the surface of the heat exchangerside wall plate 4 may be designed to be formed into a continuous square shape as shown in Fig. 8. Further, the combination of these continuous triangular and square shapes is also preferable as the shape to be an obstacle to the flow of thedewdrop 5 in the same manner as the continuously corrugated shape. - Fig. 9 is a principal perspective view showing the interior of an air conditioner of
Embodiment 3 according to the present invention. Thereference numeral 21 designates a cover which is disposed above asaucer 6 and which is disposed under U-bends 22 disposed in aheat exchanger 3, so that the cover collects dewdrops formed on the U-bends 22. Thereference numeral 21a designates a rough portion formed on the surface of thecover 21 in the direction in which dewdrops flow from the U-bends 22, so as to restrain the dewdrops from flowing. Therough portion 21a has, for example, a continuously corrugated shape. Incidentally, therough portion 21a is formed to have the pitch and height dimensions similar to those inEmbodiment 1. - When a dewdrop formed on one of the U-bends 22 of the
heat exchanger 3 reaches the surface of the continuously corrugatedrough portion 21a formed on the surface of thecover 21, the quantity of the dewdrop is reduced gradually whenever the dewdrop gets over one raised area (ridge) of the continuously corrugatedrough portion 21a as shown in Figs. 3(a) and 3(b) in the same manner as inEmbodiment 1. - The quantity of the
dewdrops 5 is reduced gradually whenever the dewdrop gets over one ridge of therough portion 21a formed continuously. As a result, the flowing force of the dewdrop is restrained. On the other hand, if another dewdrop newly formed or another dewdrop which has got over the previous ridge joins to a retained dewdrop which has not got over one ridge of therough portion 21a, the quantity of the retained dewdrop increases to start to flow again. - Then, in the same manner, the quantity of the
dewdrop 5 beginning to flow thus is reduced gradually whenever the dewdrop gets over next one ridge of therough portion 21a. Thus, the flowing force of the dewdrop is restrained. When the retained dewdrop is not newly joined by another dewdrop, the retained dewdrop will not begin to flow. In such a case, the retained dewdrop evaporates naturally without separating and dropping down from the surface of thecover 21. - In this embodiment, the
rough portion 21a for restraining the flow of the dewdrop flowing from the U-bends 22 is thus formed continuously on the surface of thecover 21 in the above-mentioned manner. As a result, the quantity of a dewdrop formed on the surface of therough portion 21a on the surface of thecover 21 can be reduced gradually whenever the dewdrop gets over one raised area (ridge) of the continuously corrugatedrough portion 21a, as shown in Figs. 3(a) and 3(b), in the same manner as that inEmbodiment 1. Thus, the flowing force of the dewdrop can be restrained. - As a result, the dewdrop flowing toward the
saucer 6 can be made difficult to separate from the surface of thecover 21 and hence difficult to drop down to the outside of thesaucer 6. In addition, in this embodiment, the flowing force of the dewdrop can be restrained when the dewdrop is collected in thesaucer 6. Accordingly, the dewdrop can be dropped down into thesaucer 6 so slowly that the dewdrop is made difficult to splash on the surface of thesaucer 6. Thus, the dewdrop can be restrained from being discharged to the outside of thesaucer 6. - Therefore, the dewdrops can be collected in the
saucer 6 efficiently without using such heat insulating material as that used conventionally. In addition, because any heat insulating material which has been required conventionally can be omitted, it is possible to prevent the number of component parts and the number of operation processes from increasing and the recycling performance from deteriorating due to such heat insulating material. - Incidentally, the description was made above on
Embodiment 3 about the case where therough portion 21a for restraining dewdrops from flowing was designed to be formed on the surface of thecover 21 disposed under the U-bends 22. However, a rough portion for restraining dewdrops from flowing may be formed on the surface of a constituent part other than theheat exchanger 3, in which constituent part it is desired to restrain dewdrops from flowing. Such a rough portion may be designed to restrain the flow of dewdrops flowing from any part other than the constituent part as shown inEmbodiment 3 or to restrain the flow of dewdrops formed on the constituent part itself as shown inEmbodiment 1. - In
Embodiment 3, therough portion 21a formed on the surface of thecover 21 was formed in the direction in which thedewdrop 5 flows. However, therough portion 21a may be formed in any direction by which the flow of thedewdrop 5 can be positively restrained. - According to
Embodiment 3, therough portion 21a was formed to have such irregularity pitch and irregularity height, preferably, as an obstacle to the flow of dewdrops so as to prevent the dewdrops from flowing. However, in brief, therough portion 21a is only required to be able to become an obstacle to the flow of the dewdrops so as to prevent the dewdrops from flowing, and thusrough portion 21a may be formed to have values different in irregularity pitch and irregularity height from the aforementioned values. - The description was made above on
Embodiment 3 about the case where therough portion 21a formed on the surface of thecover 21 was formed to have a continuous corrugated shape which was preferable as the shape to be an obstacle to the flow of dewdrops as shown in Fig. 2(b), in the same manner as inEmbodiment 1. However, as described above, such arough portion 21a may be formed into a continuous triangular shape, for example, as shown in Fig. 7 or a continuous square shape, for example, as shown in Fig. 8. Further, the combination of these continuous triangular and square shapes is also preferable as the shape to be an obstacle to the flow of dewdrops, similarly to the case of the continuously corrugated shape. -
Embodiment 4 of the present invention will be described below with reference to Fig. 10. Fig. 10 is a partially cutaway perspective view showing an air conditioner according to the present invention. Fig. 11 is a principal enlarged perspective view of the air conditioner according to the present invention; Fig. 12 is a principal plan view; and Fig. 13 is a principal sectional view. - In the drawings, the reference numeral 31 designates a housing forming an air passageway of the air conditioner; 32, a heat exchanger attached to the housing 31; 33, a line flow fan for blowing the air heat-exchanged by the heat exchanger 32 to an air outlet; 34, a motor for driving the line flow fan 33; 35, a casing of a motor receiving portion; 36, a motor cover; 37, a partition plate provided in the housing 31 for partitioning the air passageway from a space where the motor 34 is mounted; 38, a receiving hole disposed in the partition plate 37; 49, a boss (coupling fixation portion) for fixing and supporting the line flow fan; 39, a fastening screw disposed in the boss 49 for fastening together the line flow fan 33 and the shaft of the motor 34; 40, a working space for fastening or loosening the fastening screw 39; 41, a cover member for shielding the working space 40; 42, an insulator applied to the cover member 41 for improving the shielding performance of the working space 40; and 43, an insulator applied to the motor cover 36 and the casing 35 of the motor receiving portion so as to fill up the gap between the partition plate 37 and each of the motor cover 36 and the casing 35.
- In Fig. 10, as the flow of the air in the indoor unit of the air conditioner is shown by the white arrows, the air flows into the unit from its front and passes through the
heat exchanger 32 so as to be heat-exchanged. The heat-exchanged air is directed to the air outlet in the lower front of the unit along the air passageway of thehousing 31 by theline flow fan 33 so as to be blown to the outside of the indoor unit. At this time, thepartition plate 37, and theinsulators cover member 41, and thecasing 35 of the motor receiving portion and themotor cover 36, respectively, form a structure in which the air not passing through theheat exchanger 32 is shielded from flowing into the air passageway from such portions as shown by the black arrows. - Next, the aforementioned shielding structure will be described with reference to Figs. 11, 12 and 13. As shown in the principal enlarged perspective view of Fig. 11, the
casing 35 which receives themotor 34 for driving theline flow fan 33 constitutes a substantially lower portion of the shielding structure with respect to the axis of the motor. On the other hand, themotor cover 36 is disposed on the upper portion of this motor so that themotor 34 is fixedly held from above and below. In the lower portion of thecasing 35, fastening holes or ribs are provided for fastening thecasing 35 to thehousing 31 of the indoor unit. In addition, the wall of the casing extends on the motor-shaft side of thecasing 35 up to a position adjacent to thepartition plate 37, while themotor cover 36 on the upper portion is also provided with a portion extending on the motor-shaft side in the same manner. Thus, these extension portions form a shielded space on the motor-shaft side. - Further, hooks, grooves, keep plates, etc. are provided in the
casing 35 and themotor cover 36 for retaining the electric wiring from themotor 34. - Fig. 12 is a principal plan view. The air passageway side where the
heat exchanger 32 and theline flow fan 33 are received is located on the left side of thepartition plate 37 in Fig. 12, while thecasing 35 and themotor cover 36 which receive themotor 34 are located on the opposite side so that the motor shaft of themotor 34 is fixedly connected to theline flow fan 33. - Fig. 13 is a principal sectional view. The
motor 34 is fixedly received in thecasing 35 and themotor cover 36, and coupled with the boss (coupling fixation portion) 49 of theline flow fan 33 in the air passageway through the receiving hole provided in thepartition plate 37 of thehousing 31. - The
boss 49 of theline flow fan 33 is projected into the motor side through the receiving hole of thepartition plate 37 so that thefastening screw 39 for fastening themotor 34 and theboss 49 can be located outside the air passageway. As a result, the gap between theline flow fan 33 and the airpassageway partition plate 37 can be reduced so that theline flow fan 33 can obtain a stable air blowing characteristic. In addition, by loosening thefastening screw 39 of theline flow fan 33 disposed under theheat exchanger 32, the motor can be separated from the fan without removing theheat exchanger 32. - A shielded
space 50 is formed by the extension portion of thecasing 35 and theupper motor cover 36 so as to tubularly cover the outer circumference of the shaft of themotor 34 which extends toward the fan side. Thus, the rubber cushion of the bearing portion of themotor 34 is fixed tightly to thecasing 35 and themotor cover 36. Accordingly, the air passing from themotor 34 side, not through the heat exchanger, but, through the outside of the air passageway is prevented from entering the air passageway so that theline flow fan 33 can be prevented from sweating. - When there arises any problem in the
motor 34 so that themotor 34 has to be replaced to mount a new one, or when theline flow fan 33 disposed in the air passageway between theheat exchanger 32 and thehousing 31 is removed, thecover member 41 attached to themotor cover 36 is removed. As a result, the workingspace 40 forms an opening like a window for loosening or fastening thefastening screw 39 of the boss which is the coupling portion between theline flow fan 33 and themotor 34. After the replacement and mounting by means of thefastening screw 39, thecover member 41 is attached to themotor cover 36 by a reverse procedure so as to form the shieldedspace 50 again. Thus, the outside air is prevented from entering the air passageway. - Fig. 14 is a sectional view showing the attachment of a cover member in
Embodiment 5 of the present invention. In the drawing, thereference numeral 36 designates a motor cover; 44, a hook provided on the motor cover; 45, a protrusion portion of the motor cover; 41, a cover member; 46, a hook provided on the lower side of the cover member; and 47, a handle of thecover member 41. - In this construction, the
cover member 41 is slid on the surface of themotor cover 36 so that the forward end of thecover member 41 is inserted into thehook 44 of themotor cover 36. Thus, thehook 46 of thecover member 41 is fitted over theprotrusion portion 45 disposed on themotor cover 36 so that thecover member 41 can be fixed to themotor cover 36. Further, thecover member 41 is provided with thehandle 47 on its top so as to improve the manipulating performance. On the other hand, when thecover member 41 is to be removed, thecover member 41 is slid in the direction, converse to the above-mentioned manner, in which thecover member 41 is pulled out. Thus, thehook 46 is disengaged so that thecover member 41 can be removed easily. - Fig. 15 is a principal perspective view of
Embodiment 6 according to the present invention. Although thecover member 41 was designed to be attached to themotor cover 36 inEmbodiment 5, the similar effect can be obtained even if thecover member 41 is designed to be attached to thehousing 31 closely to thepartition plate 37 as shown in Fig. 15.
Claims (7)
- An air conditioner comprising a housing (2), a heat exchanger (3) disposed in said housing (2), and a saucer (6) disposed under said heat exchanger (3) for collecting dewdrops (5) adhering to a side wall plate (4) of said heat exchanger (3), characterized in that a rough portion (4a, 4b, 4c) for restraining dewdrops (5) from flowing is continuously provided on a surface of a member or members to which dewdrops (5) adhere, said member or members constituting said air conditioner and being placed in said housing (2).
- An air conditioner according to Claim 1, characterized in that said rough portion (4a, 4b, 4c) is continuously provided at least on a surface of said side wall plate (4).
- 3 An air conditioner according to Claim 1 or 2, characterized in that said rough portion is formed into any one of a continuously corrugated shape, a continuous triangular shape and a continuous square shape.
- An air conditioner according to Claim 1, 2, or 3, characterized in that said heat exchanger is formed to have a sectional shape which is any one of shapes in which a front lower portion of said heat exchanger is set back bent in multiple steps, formed into a straight-line shape, and formed into an inverted-V shape, respectively.
- An air conditioner characterized in that said air conditioner comprises a housing (31), a heat exchanger (32) disposed in said housing (31), a line flow fan (33) disposed between said heat exchanger (32) and said housing (31) for blowing heat-exchanged air, a casing (35) mounted in said housing (31) for receiving a motor (34) for driving said line flow fan (33), a partition plate (37) making a partition between an air blowing passageway in which the air is carried out by said line flow fan (33) and a space in which said casing (35) of said motor (34) is mounted, and a receiving portion (38) disposed in said partition plate (37) to permit insertion therethrough of a coupling fixation portion (49) for coupling said motor (34) with said line flow fan (33), wherein a shielded space (50) is formed inside said casing (35) so that an outer circumference of a shaft of said motor (34) is covered tubularly, and wherein said casing (35) is disposed in close contact with said partition plate (37).
- An air conditioner according to Claim 5, characterized in that an opening portion is provided in said shielded space (50) opposite to said coupling fixation portion (49) for coupling said motor (34) with said line flow fan (33), and a removable cover member (41) is disposed in said opening portion.
- An air conditioner according to Claim 6, characterized in that said cover member (41) is removable by sliding.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05012930A EP1574789B1 (en) | 2000-04-05 | 2001-04-03 | Air conditioner |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000103280A JP4320499B2 (en) | 2000-04-05 | 2000-04-05 | Air conditioner |
JP2000103280 | 2000-04-05 | ||
JP2000231570A JP3978986B2 (en) | 2000-07-31 | 2000-07-31 | Air conditioner |
JP2000231570 | 2000-07-31 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05012930A Division EP1574789B1 (en) | 2000-04-05 | 2001-04-03 | Air conditioner |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1143205A2 true EP1143205A2 (en) | 2001-10-10 |
EP1143205A3 EP1143205A3 (en) | 2003-03-05 |
EP1143205B1 EP1143205B1 (en) | 2008-08-13 |
Family
ID=26589494
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01108411A Expired - Lifetime EP1143205B1 (en) | 2000-04-05 | 2001-04-03 | Air conditioner |
EP05012930A Expired - Lifetime EP1574789B1 (en) | 2000-04-05 | 2001-04-03 | Air conditioner |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05012930A Expired - Lifetime EP1574789B1 (en) | 2000-04-05 | 2001-04-03 | Air conditioner |
Country Status (4)
Country | Link |
---|---|
EP (2) | EP1143205B1 (en) |
CN (1) | CN1177179C (en) |
AU (1) | AU742991B2 (en) |
ES (2) | ES2308339T3 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2228606A1 (en) * | 2001-12-19 | 2010-09-15 | Mitsubishi Denki Kabushiki Kaisha | Air conditioner |
WO2012056165A1 (en) * | 2010-10-29 | 2012-05-03 | Electricite De France | System for heat exchange between the air inside a space and the air outside said space |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1950503A1 (en) * | 2007-01-26 | 2008-07-30 | Lg Electronics Inc. | Indoor unit of air conditioner with air inlet via movable front panel and air outlet via bottom/top towards rearside |
ATE507441T1 (en) * | 2008-03-20 | 2011-05-15 | Daikin Ind Ltd | INDOOR UNIT FOR THE COMBINED COOLING AND HEATING OF A ROOM |
CN107906028B (en) * | 2016-09-29 | 2020-11-13 | (株)恩艾思进 | Cooling and heating module and blower |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0468921A (en) | 1990-07-09 | 1992-03-04 | Mitsubishi Electric Corp | Error correction method for drawing data |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5895137A (en) * | 1981-11-30 | 1983-06-06 | Matsushita Seiko Co Ltd | Indoor unit for separate type air conditioner |
JPH06159707A (en) * | 1992-11-30 | 1994-06-07 | Toshiba Corp | Indoor unit for air conditioner |
JP3287171B2 (en) * | 1994-06-15 | 2002-05-27 | 株式会社デンソー | Integrated cooling machine |
JP3066628B2 (en) * | 1994-07-15 | 2000-07-17 | 新晃工業株式会社 | Heat exchanger for air conditioner |
JP3282060B2 (en) * | 1994-09-26 | 2002-05-13 | 新晃工業株式会社 | Heat exchanger for air conditioner |
JPH09112944A (en) * | 1995-10-17 | 1997-05-02 | Matsushita Electric Ind Co Ltd | Motor mounting apparatus for air conditioner |
JPH1061964A (en) * | 1996-08-20 | 1998-03-06 | Fujitsu General Ltd | Room unit for air conditioner |
-
2001
- 2001-02-07 AU AU18336/01A patent/AU742991B2/en not_active Expired
- 2001-04-03 EP EP01108411A patent/EP1143205B1/en not_active Expired - Lifetime
- 2001-04-03 EP EP05012930A patent/EP1574789B1/en not_active Expired - Lifetime
- 2001-04-03 CN CNB011162082A patent/CN1177179C/en not_active Expired - Lifetime
- 2001-04-03 ES ES05012930T patent/ES2308339T3/en not_active Expired - Lifetime
- 2001-04-03 ES ES01108411T patent/ES2307557T3/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0468921A (en) | 1990-07-09 | 1992-03-04 | Mitsubishi Electric Corp | Error correction method for drawing data |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2228606A1 (en) * | 2001-12-19 | 2010-09-15 | Mitsubishi Denki Kabushiki Kaisha | Air conditioner |
WO2012056165A1 (en) * | 2010-10-29 | 2012-05-03 | Electricite De France | System for heat exchange between the air inside a space and the air outside said space |
FR2966914A1 (en) * | 2010-10-29 | 2012-05-04 | Electricite De France | THERMAL EXCHANGE SYSTEM BETWEEN AIR SITUATED IN A SPACE AND AIR LOCATED OUTSIDE SPACE |
Also Published As
Publication number | Publication date |
---|---|
EP1574789A2 (en) | 2005-09-14 |
ES2308339T3 (en) | 2008-12-01 |
CN1316627A (en) | 2001-10-10 |
CN1177179C (en) | 2004-11-24 |
EP1143205B1 (en) | 2008-08-13 |
AU742991B2 (en) | 2002-01-17 |
ES2307557T3 (en) | 2008-12-01 |
AU1833601A (en) | 2001-10-25 |
EP1143205A3 (en) | 2003-03-05 |
EP1574789B1 (en) | 2008-08-13 |
EP1574789A3 (en) | 2005-11-23 |
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