JPH0517526Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to an air conditioner in which a blower and a prime mover for driving the blower are provided in a passageway for guiding air-conditioning air to an outlet. .

[Conventional technology]

In the above-mentioned air conditioner, conventionally, as shown in FIG. 3, the blower 1 is arranged in such a manner that its air outlet 1A is perpendicular to the longitudinal direction of the passage.
An electric motor 2 as a prime mover of the blower 1,
The air outlet 14 is one of the two bent corners of the substantially U-shaped passage 15 in plan view that guides the flow to the air outlet 14.
It was placed at a bent corner located on the side where the

[The problem that the idea attempts to solve]

According to the above configuration, since the electric motor 2 is located in the air inflow path to the blower 1, the electric motor 2 provides a large resistance to the air flow, and the blowing capacity of the blower is This requires a large electric motor 2, resulting in the inconvenience of increasing the size of the air conditioner.

In addition, since the air outlet 1A of the blower 1 is in a posture perpendicular to the longitudinal direction of the passage, in other words, the blowing direction of the air outlet 1A and the longitudinal direction of the passage are the same direction, so that the air from the blower 1 is In order to increase the sound absorption effect for
The duct 7 with the sound absorbing material 8 disposed between the air outlet 14 and the air outlet 14 must be made longer. For this reason,
A large space had to be secured for the installation of the duct 7, making the air conditioner even larger.

An object of the present invention is to make it possible to downsize an air conditioner by rationally arranging a blower and an electric motor.

[Means to solve the problem]

In the air conditioner according to the present invention, the blower is arranged in an inclined position in which the air outlet thereof is inclined with respect to the longitudinal direction of the passage, and a virtual plane passing through the casing of the blower and the air outlet of the blower, and
The present invention is characterized in that the prime mover is disposed in an acute corner surrounded by an inner wall surface constituting the passage, and furthermore, the present invention is characterized in that the prime mover is disposed at an acute corner surrounded by an inner wall surface constituting the passage. The present invention is characterized in that an eliminator having a wide width is provided in an inclined position, and that a passage portion located between the air outlet of the blower and the air outlet is bent in the direction of the air flow.

[Effect]

By arranging the blower as above,
Because the passage is locally bent near the air outlet of the blower, the distance from the air outlet to the air outlet is reduced by the amount that the air outlet is tilted compared to when the air outlet is arranged perpendicular to the passage. You can make the aisle longer. Specifically, as shown in FIG. 1, of the tip of the casing 1B that constitutes the air outlet 1A, a portion 1 that protrudes most toward the air outlet 14 side.
passage 1 by the space S formed between the plane C passing through b and orthogonal to the passage 15 and the air outlet 1A.
5 can be made longer.

In addition, by arranging the blower as described above, a dead space, which is an acute corner surrounded by the casing of the blower, a virtual plane passing through the blower's air outlet, and the inner wall surface forming the passage, can be created. It is formed. By effectively utilizing this dead space as an installation space for the prime mover of the blower, the prime mover can be installed without entering the inflow path of the air flowing into the blower.

Furthermore, if the eliminator is placed in an inclined position, it is possible to arrange the eliminator with a width larger than the passage width, thereby increasing the area through which air passes and reducing the resistance of air passing through the eliminator. I can do it.

In addition, by bending the passage between the blower's air outlet and the air outlet in the direction of the air flow, the passage from the air outlet to the outlet can be lengthened, resulting in better sound absorption. A duct with wood can be made longer.

[Effect of idea]

Therefore, by arranging the blower and the prime mover rationally as described above, the blower's air flow can be improved without changing the installation position of the blower to the upper side in the longitudinal direction of the passage in the casing of the same size as before. Not only can the sound absorption effect be improved by making the passage between the mouth and the air outlet long, but also the size of the prime mover can be reduced by installing it in a location that does not create resistance to the air flowing into the blower. Since the installation space for the prime mover can be reduced by installing it in a dead space, the air conditioner can also be made smaller.

Furthermore, by arranging the eliminator as described above, it is possible to increase the air passing area of the eliminator and suppress the air passing speed from increasing as much as possible, so that when air passes through the eliminator, The generated sound can be minimized, and noise can be further reduced.

In addition, by bending the passage between the blower's air outlet and the air outlet, the duct with sound-absorbing material can be made longer in a limited space, improving the sound-absorbing effect. Furthermore, the noise can be further reduced.

〔Example〕

FIG. 1 shows an air handling unit that is an example of an air conditioner. This air handling unit includes a passage 1 that guides air sucked in from an inlet 19 formed in a casing K to an outlet 14 formed in the casing K.
5, a multi-blade blower 1 which is an example of a centrifugal blower, an electric motor 2 as a prime mover for driving the blower 1, an eliminator 3, a humidifier 4, a heating coil 5, a cooling dehumidifying coil 6, and a filter 9 are provided. It is composed of

The blower 1 is arranged in an inclined position in which the blower port 1A thereof is inclined with respect to the longitudinal direction of the passage, and a virtual plane passing through the casing 1B of the blower 1 and the blower port 1A of the blower 1, as well as the passage 15. The electric motor 2 is placed in an acute corner B surrounded by an inner wall surface 15A, and the passage from the air outlet 1A of the blower 1 to the air outlet 14 is lengthened to achieve a sound deadening effect. In addition, it is possible to make the air conditioner more compact by effectively using the dead space, which is the sharp corner created by changing the arrangement of the blower 1, as the installation space for the electric motor 2. .

A duct 7 is provided in the casing K for guiding air from the blower 1 through the outlet 14. The duct 7 is made of punched metal, and glass wool 8 as a sound absorbing material is attached to the outer peripheral surface of the duct 7. The duct 7 allows the air from the blower 1 to flow and guide it toward the outlet 14. It is also designed to absorb sound and reduce noise.

The duct 7 and the glass wool 8 constitute a passage portion located between the air outlet 1A of the blower 1 and the air outlet 14.

The passage portion made up of the duct 7 and the glass wool 8 is bent in the wind flow direction, so that the distance for sound absorption can be increased.

Furthermore, within the duct 7, there are two flow paths 10, 1.
A guide 12 is provided for forming sections. This guide 12 is made of punched metal like the duct 7, and inside this guide 12 is a glass wool 13 having the same structure as the sound absorbing material.
The guide 12 is provided so that it can also absorb sound from the air that comes into contact with the guide 12.

Of the two flow paths 10 and 11, the opening area of the flow path 11 located at a portion of the blower 1 having a high wind speed in the width direction of the air outlet is configured to be smaller than the cross-sectional area on the downstream side in the air flow direction. The wind speed at the downstream side of the flow path 11 in the air flow direction is made smaller than the wind speed near the opening of the flow path 11, and the air outlet 14
The air volume per unit area in the width direction of the outlet is made to be the same.

Further, as described above, by arranging the blower 1 in an inclined position, the blowing direction of the blower 1 becomes a direction toward the flow path 10 on the side where the wind speed is slower among the two flow paths 10 and 11, Therefore, it is possible to prevent air with high wind speed from being supplied to the channel 11 located in a region with high wind velocity as much as possible, and without changing the width of the one channel 11 in the air flow direction. The wind speed distribution at the openings of the flow channels 10 and 11 is designed not to fluctuate greatly.

An input pulley 16 fixed to the rotating shaft 1a of the blower 1 and an output pulley 17 fixed to the drive shaft 2a of the electric motor 2 are interlocked and connected by a transmission belt 18.

The eliminator 3 located upstream of the blower 1 is configured to have a width larger than the width of the passage, and the eliminator 3 is provided in the passage 15 in an inclined position.

Incidentally, FIG. 2 shows the wind speed distribution at the air outlet 1A of the blower 1.

[Another example]

In the above embodiment, glass wool 8 is used as the sound absorbing material.
However, mineral or vegetable fibers such as rock wool or kapoku, or airtight materials such as thin plywood or kanbal may also be used, and various materials can be used as the sound absorbing material. . In addition to being attached to the outer peripheral surface of the duct 7, this sound absorbing material may be attached to the inner peripheral surface of the duct 7.

Further, in the embodiment described above, the passage portion located between the air outlet A of the blower 1 and the air outlet 14 is bent in the wind flow direction, but it may be formed in a straight line in the same direction as the wind flow direction.

Further, in the embodiment described above, the eliminator 3 is configured to have a width larger than the passage width, but it may be configured to have the same width as the passage width.

Further, in the embodiment described above, the electric motor 2 is used as the prime mover, but an engine or any other device that generates power for driving the blower 1 may be used.

Further, in the above embodiment, a multi-blade type blower was used as the blower, but various blowers such as an axial blower such as a propeller blower or a tube axial blower, a diagonal flow blower, or a crossflow blower may be used.

The present invention can be applied to air conditioners that can adjust temperature and humidity, as well as air conditioners that can adjust either temperature or humidity, or air conditioners that only have the function of blowing air. Can be applied to machines.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of drawings]

The drawings show an embodiment of the air conditioner according to the present invention, with FIG. 1 being a sectional view and FIG. 2 being a wind speed distribution diagram. FIG. 3 is a sectional view of a conventional air conditioner. 1...Blower, 1A...Blower port, 1B...Casing, 2...Motor, 3...Eliminator, 1
4... Air outlet, 15... Passage, 15A... Inner wall surface, B... Corner.

Claims (1)

[Claims for Utility Model Registration] 1. An air conditioner in which a blower 1 and a motor 2 for driving the blower 1 are provided in a passage 15 for guiding air-conditioning air to an outlet 14, the blower being 1 is arranged in an inclined position such that its air outlet 1A is inclined with respect to the longitudinal direction of the passage, and a virtual plane passing through the casing 1B of the blower 1 and the air outlet 1A of the blower 1, as well as the passage 15 are configured. In this air conditioner, the prime mover 2 is placed in an acute corner B surrounded by an inner wall surface 15A. 2. The air conditioner according to claim 1, wherein an eliminator 3 having a width larger than the passage width is provided in an inclined position upstream of the blower 1. 3 The air outlet 1A of the blower 1 and the air outlet 14
2. The air conditioner according to claim 1, wherein the passage portion located between the air conditioner and the air conditioner is bent in the wind flow direction.