JPH0663294A - Heat exchange type blower - Google Patents

Abstract

(57) [Summary] [Object] An object of the present invention is to realize a heat exchange type blower having high heat exchange performance. [Structure] A blade 37 made of a corrugated thin plate that constitutes an impeller 23 in which groove portions are provided radially from the center of rotation,
A substantially ring-shaped partition member 29 which is arranged in the outer peripheral direction of the blade and separates two types of air streams 34 and 35 flowing through the groove portions on both sides of the blade, and the partition member is composed of a corrugated plate member. Has a large surface area, which increases the amount of heat exchange performed by the partition member 29. Therefore,
A heat exchange type blower having high heat exchange performance can be obtained without increasing the diameter or thickness of the blade 37.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchange type blower having a blower function and a heat exchange function by means of a blade made of corrugated thin plates constituting an impeller.

[0002]

2. Description of the Related Art A conventional technique will be described below with reference to the accompanying drawings.

FIG. 5 shows an impeller part of a heat exchange type blower, and 1 is a blade composed of a corrugated thin plate in which groove parts are provided radially from the center of rotation. An inner member 2 supports the blade 1 from the center of the rotating shaft, and has a boss 3 for fixing the impeller to the rotating shaft. Reference numeral 4 is a substantially ring-shaped outer peripheral member that supports the blade 1 together with the inner member 2 from the outer peripheral direction. A seal member 5 having a substantially ring-like shape and flexibility is mounted on the outer peripheral member 4.

FIG. 6 shows a schematic sectional shape of a clothes dryer incorporating the above-mentioned impeller. 6 is a dryer outer frame, 7 is a drum rotatably arranged in the dryer outer frame 6, and 8 is a drum 7.
A front door for putting the material to be dried therein, 9 is an impeller shown in FIG. 7, and 10 is a rotating shaft for rotating the impeller 9, and the boss 3 of the inner member 2 is fixed. 11 and 12
Is an air casing for drying which contains the impeller 9 and forms an air passage.
Thing and cooling air casing 13 is a partition member for partitioning the air flow on both sides of the impeller 9 in the air passage portion.
It is located in the outer peripheral direction. Reference numeral 14 is a duct for introducing hot and humid circulating air for drying, and a heater 15 is provided on the way. Reference numeral 16 is a duct for exhausting the intake cooling air. Reference numerals 17 and 18 respectively show the flows of the circulating air for cooling and the cooling air. Reference numeral 19 is a drain port for discharging dehumidified water to the outside of the machine.

In the above structure, when a power source (not shown) is turned on, a motor (not shown) is rotated and the impeller 9 is rotated.
Starts rotating. When the impeller 9 starts to rotate, two different air flows, that is, a circulating air 17 for drying and a cooling air 18 are generated on both sides of the impeller 9. The circulating air 17 for drying is heated by the heater 15 and then heated in the drum 7.
Then, the clothes in the drum 7 are dried and become hot and humid.
The circulating air for drying that has become hot and humid has a low humidity due to heat exchange with the cooling air while moving along one surface of the impeller 9, and is heated by the heater 15 via the duct 14.
The clothes in the drum 7 are dried again. The cooling air 18 is sucked from the outside of the machine, moves along the other surface of the impeller 9, is used for the heat exchange described above, and is then discharged to the outside of the machine again through the duct 16.

This heat exchange action will be described. The circulating air for drying and the cooling air flow adjacent to each other with one thin plate sandwiched between the groove portions on both sides of the blade 1 and the partition member 13. At this time, the blade 1 and the partition member 1 move from the circulating air 17 for drying having a high temperature to the cooling air 18 having a low temperature.
The heat is transferred through 3 and the circulating air for drying 17
Is radiated to the outside of the drying air casing 11 through the drying air casing 11. Therefore, the circulating air for drying 1
7 is cooled, and the water contained therein is condensed to form water droplets and drained from the drain port 19. Thus, the circulation air 17 for drying is dehumidified.

[0007]

However, in the above-mentioned conventional structure, since most of the heat exchange is performed by the blade 1, it is necessary to increase the diameter or thickness of the blade 1 in order to improve the heat exchange performance. In other words, the heat exchange blower itself must be upsized. The present invention solves the above-mentioned conventional problems, and a first object of the present invention is to provide a heat exchange type blower capable of improving heat exchange performance without increasing the size of the device. The second, third and fourth objectives are to provide second, third and fourth means for achieving the first objective.

[0008]

The first means of the present invention for achieving the first object is a blade made of a corrugated thin plate which constitutes an impeller in which groove portions are provided radially from the center of rotation. And a substantially ring-shaped partition member which is arranged in the outer peripheral direction of the blade and separates two types of air flows flowing in the groove portions on both sides of the blade, and the partition member is a corrugated plate-shaped member for heat exchange. It is a type blower.

A second means of the present invention for attaining the second object is a blade made of a corrugated thin plate which constitutes an impeller having groove portions radially provided from a rotation center, and an outer peripheral direction of the blade. Placed on the blade and flowing through the groove on both sides of the blade 2
A heat exchange-type blower having a substantially ring-shaped partition member that separates air flows of various types, and rib-shaped fins are provided on the partition member.

A third means of the present invention for achieving the third object is a blade made of a corrugated thin plate which constitutes an impeller in which groove portions are provided radially from the center of rotation, and an outer peripheral direction of the blade. Placed on the blade and flowing through the groove on both sides of the blade 2
A substantially ring-shaped partition member for separating air flows of different types, a drying air casing on one side partitioned by the partition member, and a cooling air casing on the other side are provided, and the drying air casing is a corrugated plate. The heat-exchange-type blower is configured by a member.

A fourth means of the present invention for achieving the fourth object is to provide a blade made of a corrugated thin plate which constitutes an impeller in which groove portions are provided radially from the center of rotation, and an outer circumference of the blade. A substantially ring-shaped partition member which is arranged in a predetermined direction and separates two types of airflows flowing through the groove portions on both sides of the blade,
A heat exchange type blower having a drying air casing on one side partitioned by this partition member and a cooling air casing on the other side, wherein the drying air casing is provided with rib-shaped fins. is there.

[0012]

According to the first means of the present invention, the partition member is composed of a corrugated plate member, and the surface area thereof is increased so that the partition member itself has a heat exchange function. Therefore, it is possible to obtain a heat exchange type blower having high heat exchange performance without increasing the diameter or thickness of the blade.

A second means of the present invention is that the ring-shaped partition member is provided with rib-shaped fins, and the partition member itself has a heat exchange action, as in the first means of the present invention. Therefore, it is possible to obtain a heat exchange type blower having high heat exchange performance without increasing the diameter or thickness of the blade.

According to a third means of the present invention, the drying air casing is constituted by a corrugated plate-like member, and its surface area is increased,
The amount of heat radiation is increased. Therefore, it is possible to obtain a heat exchange type blower having high heat exchange performance without increasing the diameter or thickness of the blade.

A fourth means of the present invention is to provide rib-shaped fins on the drying air casing to increase the surface area of the drying air casing and to increase the surface area ratio of the inside and the outside of the drying air casing to improve efficiency. It is possible to adjust to obtain good heat exchange performance. As a result, the amount of heat radiation in the drying air casing itself increases,
In addition, the weight increase of the drying air casing can be minimized. Therefore, it is possible to obtain a heat exchange type blower having high heat exchange performance without increasing the diameter or thickness of the blade.

[0016]

EXAMPLE An example of the first means of the present invention will be described with reference to FIG.

FIG. 1 shows a schematic cross-sectional shape of the clothes dryer of this embodiment. 20 is a dryer outer frame, 21 is a drum rotatably arranged in the dryer outer frame 20, 22 is a drum 2
1 is a front door for introducing the material to be dried, 23 is an impeller, 24 is a rotating shaft for rotating the impeller 23, and the boss 26 of the inner member 25 is fixed. 27 and 28 are
A drying air casing that contains the impeller 23 and forms a ventilation path.
Thing and cooling air casing. Reference numeral 29 is a partition member that partitions the air flow on both sides of the impeller 23 by the air passage portion. The partition member 29 is made of a corrugated plate member, and is used for the impeller 2
3 is located in the outer peripheral direction of the outer peripheral member 30.
Reference numeral 31 is a duct for introducing hot and humid circulating air for drying, and a heater 32 is provided in the middle of the duct. 33 is a duct for exhausting the sucked cooling air. 34 ・ 35
Shows the flow of the circulating air for drying and the flow of cooling air, respectively. Reference numeral 36 is a drain port for discharging dehumidified water to the outside of the machine.

The operation of this embodiment will be described below. If you turn on a switch (not shown) to activate the device,
A motor (not shown) starts rotating, and the impeller 23 starts rotating. In this way, two different air flows are generated on both sides of the impeller 23, that is, the circulation air 34 for drying and the cooling air 35. The circulating air 34 for drying enters the drum 21 after being heated by the heater 32,
The clothes in 1 are dried, becoming hot and humid, and the impeller 2
Come back to 3. In this way, the circulating air for drying is heat-exchanged with the cooling air 35 by the impeller 23, and becomes low humidity. The drying air, which has become low in humidity, passes through the duct 31 and is reheated to the heater 32.
Is heated by the high-temperature drying air to dry clothes. The clothes are dried by the circulation of the drying air. The heat exchange action will be described. The cooling air 35 is sucked from the outside of the machine, moves along the other surface of the impeller 23, and exits the machine again through the duct 33.
While moving through the impeller 23, the circulating air for drying and the cooling air are provided on the groove portions on both sides of the blade 37 and the partition member 2.
Flowing next to each other with 9s in between. Since the blade 37 and the partition member 29 are formed of a thin plate of a good heat conductor such as aluminum, heat is transferred from the circulating air for drying 34 having a high temperature to the cooling air 35 having a low temperature. In this way, the circulation air 34 for drying is cooled, and the water content contained therein is condensed to form water droplets and drained from the drainage port 36.

At this time, in this embodiment, since the partition member 29 is formed of a corrugated plate-like member, the surface area is large. Therefore, heat exchange with the cooling air is prevented by the partition member 2.
Even 9 will be effectively performed. Therefore, the heat exchange amount as a whole is increased, and a heat exchange type blower having high heat exchange performance can be obtained without increasing the diameter or thickness of the blades 37 constituting the impeller 23.

Next, an embodiment of the second means of the present invention is shown in FIG.
Will be explained. FIG. 2 shows a schematic cross-sectional shape of the clothes dryer of this embodiment. In this embodiment, the partition member 38
Has rib-shaped fins 39 and 40 on the drying air side and the cooling air side.

The heat exchange type blower or the clothes dryer having the partition member 38 operates in the same manner as in the above embodiment.

That is, when the operation is started, the partition member 38
Has the rib-shaped fins 39 and 40, so that the surface area is increased. Further, by appropriately selecting the types of the fins 39 and 40 to be used, it is possible to adjust the ratio of the surface area of the partition member 38 on the drying air side to the cooling air side in order to obtain efficient heat exchange performance. Become. As a result, the amount of heat exchange in the partition member 38 itself increases,
In addition, the increase in the weight of the partition member 38 can be suppressed to the necessary minimum. Therefore, it is possible to obtain a lightweight heat exchange type blower having high heat exchange performance without increasing the diameter or thickness of the blade 41.

Next, an embodiment of the third means of the present invention is shown in FIG.
Will be explained. In the present embodiment, the drying air casing 42 is made of a corrugated plate member.

In this embodiment, the drying air casing 42 is used.
Has a large surface area because it is composed of corrugated members. Therefore, the amount of heat released by the circulating air for drying to the cooling air via the drying air casing 42 increases. Therefore, it is possible to obtain a heat exchange type blower having high heat exchange performance without increasing the diameter or thickness of the blade 43.

Next, an embodiment of the fourth means of the present invention will be described with reference to FIG. In this embodiment, the drying air casing 44 has rib-shaped fins 45 and 46 inside and outside the drying air casing.

The drying air casing 44 has rib-shaped fins 45 and 46 and has a large surface area. Further, by properly selecting the type of rib to be used, it is possible to adjust the surface area ratio between the inside and outside of the drying air casing 44 in order to obtain efficient heat exchange performance. As a result, the amount of heat radiation in the drying air casing 44 itself is increased, and the weight increase of the drying air casing 44 can be minimized. Therefore, it is possible to obtain a lightweight heat exchange type blower having high heat exchange performance without increasing the diameter or thickness of the blade 47.

[0027]

The first means of the present invention is a blade made of a corrugated thin plate constituting an impeller having groove portions radially provided from the center of rotation, and blades arranged in the outer peripheral direction of the blade. A substantially ring-shaped partition member for separating two types of airflows flowing through the groove portion of the partition member, and the partition member is composed of a corrugated plate-shaped member, so that the amount of heat exchange in the partition member can be increased. A heat exchange type blower having high heat exchange performance can be realized without increasing the diameter or thickness of the blade.

A second means of the present invention is a blade made of a corrugated thin plate which constitutes an impeller having groove portions radially provided from the center of rotation, and a blade which is arranged in the outer peripheral direction of the blade.
A substantially ring-shaped partitioning member that separates two types of airflows flowing in the groove portions on both sides, and rib-shaped fins are provided on this partitioning member, and especially the surface area on the drying air side and the cooling air side The ratio can be adjusted, a high heat exchange performance can be realized without increasing the diameter or thickness of the blade, and a lightweight heat exchange type blower can be realized.

A third means of the present invention is a blade made of a corrugated thin plate which constitutes an impeller having groove portions radially provided from the center of rotation, and a blade which is arranged in the outer peripheral direction of the blade.
A substantially ring-shaped partition member for separating two types of airflows flowing through the groove portions on both sides, a drying air casing on one side partitioned by the partition member, and a cooling air casing on the other side, Since the drying air casing is composed of a corrugated plate-like member, the surface area of the drying air casing can be increased, and a heat exchange type blower having high heat exchange performance can be realized without increasing the diameter or thickness of the blade. It is a thing.

A fourth means of the present invention is a blade made of a corrugated thin plate which constitutes an impeller in which groove portions are provided radially from the center of rotation, and blades arranged on the outer peripheral direction of the blade. A substantially ring-shaped partition member that separates two types of airflows flowing through the groove portion, a drying air casing on one side partitioned by the partition member, and a cooling air casing on the other side are provided. As a structure in which rib-shaped fins are provided in the air casing, the surface area ratio inside and outside the drying air casing can be adjusted, and high heat exchange performance can be achieved without increasing the diameter or thickness of the blade. It is also possible to realize a lightweight heat exchange type blower.

[Brief description of drawings]

FIG. 1 is a schematic side sectional view of a clothes dryer incorporating a heat exchange type blower according to an embodiment of the first means of the present invention.

FIG. 2 is a partial schematic side sectional view of a clothes dryer incorporating a heat exchange type blower according to an embodiment of the second means of the present invention.

FIG. 3 is a partial schematic side sectional view of a clothes dryer incorporating a heat exchange type blower in an embodiment of a third means of the present invention.

FIG. 4 is a partial schematic side sectional view of a clothes dryer incorporating a heat exchange type blower in an embodiment of a fourth means of the present invention.

FIG. 5 is an external perspective view showing an impeller of a heat exchange blower.

FIG. 6 is a schematic side sectional view of a clothes dryer incorporating a conventional heat exchange type blower.

[Explanation of Codes] 37, 41, 43, 47 Blade 23 Impeller 27, 42, 44 Drying Air Casing 28 Cooling Air Casing 29, 38 Partitioning Member 39, 40, 45, 46 Fin

Claims (4)

[Claims] 1. A blade made of a corrugated thin plate that constitutes an impeller having groove portions radially provided from the center of rotation, and two types of air that are arranged in the outer peripheral direction of the blade and flow in the groove portions on both sides of the blade. A heat exchange type blower having a substantially ring-shaped partition member for separating a flow, and the partition member being a corrugated plate member. 2. A blade made of a corrugated thin plate forming an impeller in which groove portions are provided radially from the center of rotation, and two types of air which are arranged in the outer peripheral direction of the blade and flow in the groove portions on both sides of the blade. A heat exchange-type blower having a substantially ring-shaped partition member for separating a flow, and a rib-shaped fin provided on the partition member. 3. A blade made of a corrugated thin plate that constitutes an impeller in which groove portions are provided radially from the center of rotation, and two types of air that are arranged in the outer peripheral direction of the blade and that flow in the groove portions on both sides of the blade. A substantially ring-shaped partition member for separating the flow,
A heat-exchange-type blower comprising a drying air casing on one side and a cooling air casing on the other side, which are partitioned by the partition member, and the drying air casing is formed of a corrugated plate member. 4. A blade made of a corrugated thin plate which constitutes an impeller having groove portions radially provided from the center of rotation, and two types of air which are arranged in the outer peripheral direction of the blade and flow in the groove portions on both sides of the blade. A substantially ring-shaped partition member for separating the flow,
A heat exchange-type blower having a configuration in which a drying air casing on one side and a cooling air casing on the other side, which are partitioned by the partition member, are provided, and rib-shaped fins are provided on the drying air casing.