JP2550507B2 - Ventilation equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention can be used for carrying air such as exhausting indoor air to the outside using a duct and supplying outdoor air to the room. It relates to a ventilation device.

[Prior Art] Examples of conventional ventilation devices of this type include, for example, Publication 1 (Japanese Utility Model Laid-Open No. 58-85132) and Publication 2 (Japanese Utility Model Laid-Open No. 59-1).
No. 84030), or those disclosed in Publication 3 (Jpn. Pat. Appln. KOKAI No. 58-178217) and Publication 4 (Jpn. KOKAI No. 57-58823). In any of these, basically, a main body containing a blower is provided with a suction port and a blowout port, and the air in the room is exhausted to the outside and the air in the room is inhaled through a duct. . The ventilator shown in Publication 1 has a box-shaped main body in which a blow-out port and a suction port are formed, a centrifugal blower is incorporated in the main body, and an air flow from the suction port to the blow-out port is generated. To be formed. Further, in the ventilation device shown in Publication 2, a branch box having a damper for switching the air passage is attached to a duct connected to the suction port, so that ventilation of two systems can be performed. Furthermore, the ventilator shown in Publication 3 is of a simultaneous air supply / exhaust type, and the illuminator is configured with its suction port also serving as a suction grill. Further, the ventilation device shown in Publication 4 is configured such that a blower is provided in each section of an outer box which is divided into two parts, and the suction direction and the blowing direction of the blower can be appropriately changed.

These conventional ventilators are installed in the space above the ceiling, etc., using ducts to exhaust indoor air to the outside,
It is used for carrying air, such as supplying air to the room outside.

[Problems to be Solved by the Invention] In the conventional ventilation device described above, for example, in the one disclosed in Publication 1, there is an inspection port for inspecting the blower in the ceiling surface in the vicinity of the installation place of the ventilation device. In addition, it is necessary to remove the duct and reattach the ventilation device in the opposite direction when the ventilation direction is reversed with the duct piping installed, which is disclosed in Publication 2. Also has similar problems.
In addition, in the one disclosed in Publication 3, the illuminator is largely protruded from the ceiling surface, and the illuminator is half-finished, and the illuminator interferes with maintenance and inspection of the blower part. It is hard to carry out. Further, the one disclosed in Publication 2 has a problem that since the vane casing is provided, the overall height dimension is increased and the configuration is complicated.

The present invention has been made to solve such a conventional problem, and a first object thereof is to obtain a ventilation device having a simple structure and capable of easily changing a blowing direction even after installation, and a second object. It is possible to obtain a ventilation system in which maintainability is not impaired even when an illuminator is provided side by side, and the protrusion of the illuminator can be reduced. Furthermore, another purpose is to obtain a multifunctional, highly adaptable and compact ventilation device such as simultaneous air supply / exhaust and multi-system ventilation.

[Means for Solving the Problems] A ventilator according to a first aspect of the present invention is a tubular blower in which a plurality of axial blowers are assembled in series in a cylindrical casing with open ends, and the tubular blower as a whole. And a main body casing provided with an open portion having one open side forming an air chamber on one open end side of the tubular blower, and the end face on the opposite side of the air chamber of the main body casing and the air An opening for ventilation is provided on the chamber side and the end surface or a side surface adjacent to this end surface, and the opening portion enables attachment / detachment and change of the mounting direction of the cylindrical blower, and supply / exhaust air from the main casing installation room. It is possible to supply / exhaust air to / from a room connected to the ventilation opening.

A ventilation device according to a second aspect of the present invention is a contra-rotating type cylindrical blower in which two axial flow blowers are assembled in series on a center line in a cylindrical casing with both ends open, and this cylindrical blower. Enclosed in its entirety, extending longer than one open end of the cylindrical blower, and having one open main body casing that constitutes an air chamber inside the portion, and the end face of the main casing on the side opposite the air chamber An opening for ventilation is provided on the air chamber side, an opening for ventilation is provided on the end surface and the side surface adjacent to the air chamber side, and one opening is opened on one of the openings on the end surface and the side surface adjacent to the end surface. A damper is provided which closes the other when the above is done and closes one when the other opening is opened.

Further, a ventilation device according to a third aspect of the present invention is a contra-rotating type cylindrical blower in which two axial blowers are assembled in series on a center line in a cylindrical casing with both ends open, and this cylindrical blower. The whole body is included and extends longer than one open end of the tubular blower, and has an open main body casing that constitutes an air chamber inside the part, and the end surface of the main casing on the side opposite the air chamber An opening for ventilation is provided on the air chamber side, an opening for ventilation is provided on at least one of the end surface or side surface on the air chamber side, and an illuminator is provided on the lower surface of the main body casing.

A ventilation device according to a fourth aspect of the present invention is the ventilation device of the second aspect of the present invention, which is two counter-rotating blowers in which tubular blowers are arranged in parallel.

[Operation] In the ventilator according to the first aspect of the present invention, the cylindrical blower can be attached to and detached from the opening of the main body casing, and the inspection opening on the ceiling surface becomes unnecessary by exposing the opening portion to the ceiling surface. Further, by changing the mounting direction of the tubular blower, it becomes possible to reverse the blowing direction without operating the accompanying structure such as the duct. In addition, ducts can be omitted in rooms equipped with ventilation devices to supply and exhaust air.

Further, in the ventilator according to the second aspect of the present invention, the ventilation path can be switched by operating the damper, so that the ventilation of two systems can be performed.

Further, in the ventilator according to the third aspect of the invention, the illuminator does not particularly project, and the illuminator can be connected to the illuminator without a feeling of strangeness, and the illuminator does not become a cause of impairing maintainability.

In addition, in the ventilator of the fourth aspect of the present invention, in particular, by adopting two counter-rotating blowers in which the cylindrical blowers are arranged in parallel, it is compact and has excellent functionality and adaptability to simultaneous air supply and exhaust. Become.

[Embodiment] FIG. 1, FIG. 2 and FIG. 3 each show an embodiment of the present invention, and FIG. 1 is a perspective view showing the configuration of a ventilation device.
2 and 3 are cross-sectional plan views of the ventilation device showing different usage examples. The ventilation system shown by these drawings
A cylindrical blower 4 in which two axial blowers 2 and 3 are assembled in series on the center line in a cylindrical casing 1 with both ends open.
Is longer than the entire length of the tubular blower 4 and is releasably included in a main body casing 6 of a sickle shape or a rectangular parallelepiped having a rectangular opening 5 on one surface. Tube type blower 4
The two blowers 2 and 3 have opposite rotation directions, and the blower directions are the same contra-rotating type, and high static pressure can be obtained. The casing 1 of the tubular blower 4 has an axial length of l.
The diameter of the main body casing 6 is L, and the inner diameter of the main body casing 6 is D. Here, the dimension is L = 1 + d or more, and the dimension D is slightly larger than d. Openings 7 corresponding to openings at both ends of the tubular blower 4 are formed on both end surfaces of the main body casing 6,
Each of the openings 7 is equipped with a connection flange 8 which can be connected to a duct. Further, a decorative grille 9 which can ventilate a flange formed around the opening 5 on the lower surface of the main body casing 6 is detachably attached. The cylindrical blower 4 can be installed in the main body casing 6 in an inscribed state at a position near one side in either direction. In the illustrated example, the air chamber S is formed at a position closer to the right side, and an air chamber S is formed on the opposite side of the main body casing 6. This air chamber S
Is connected to the opening at one end of the tubular blower 4, one opening 7 at the end surface of the main body casing 6, and the opening 5 at the lower surface of the main body casing 6.

The function of the ventilation device configured as described above is as follows. That is,
The main body casing 6 is attached to a space such as the ceiling above the ceiling so that the opening 5 on the lower surface opens, and in the case of exhaust, the duct 10 for connecting to the room B to be exhausted to the connection flange 8 on the air chamber S side. Connect. The opening 5 on the lower surface faces the room A different from the room B through the makeup grill 9. The anti-air chamber S
The connection flange 8 on the side end face is connected to the outside or a duct 10 that opens to the outside (see FIG. 2). After that, the tubular blower 4 is assembled into the main body casing 6 from the opening 5 on the lower surface on the left side of the drawing so that the air chamber S can be formed on the suction side, and the makeup grill 9 is attached. In this way, when the tubular blower 4 is operated, the air in the room B is transferred to the air chamber S through the duct 10 and to the room A.
Air is sucked into the air chamber S through the makeup grill 9,
The air in the air chamber S is sucked into the cylindrical blower 4, and is discharged to the outside or the outside from the connecting flange 8 on the opposite side through the duct 10. In order to supply this to the air supply, the cylindrical blower 4 may be installed in the main body casing 6 with its direction reversed so that the outside air can be supplied to the rooms A and B as shown in FIG. Become.

The maintenance inspection may be carried out by removing the decorative grill 9 and removing the tubular blower 4 from the main body casing 6, and there is no need to operate duct piping or the like, and there is no need to form an inspection port on the ceiling surface.

As shown in FIG. 4, the opening 7 provided on the end surface on the air chamber S side is provided on the back surface or the front surface adjacent to the end surface, and the connection flange 8 is attached to the opening 7 so that the room B can be attached to the ventilation device. If it is at right angles to the position, it will be possible to use a straight pipe type duct without using elbow piping.

Next, another ventilation device as an embodiment of the present invention shown in FIGS. 5 and 6 will be described. FIG. 5 is a vertical sectional front view showing the structure of the ventilation device, and FIG. 6 is a perspective view of the ventilation device showing the structure. The ventilation device shown in these figures also has basically the same configuration as that described above with reference to FIG. 1 and the like, and the same reference numerals in the drawings indicate the same or corresponding parts. This ventilation device is characterized in that the air chamber S has an opening 5 on the lower surface.
Or close one of the openings with the connection flange 8,
The point is that a switching damper 11-is provided which can open the other side and set it to the neutral position. The switching damper 11-is rotated manually or driven by a motor to switch the air passage.

That is, in this ventilation device, either room A or room B,
Alternatively, both can be ventilated (by air supply or exhaust) by operating the switching damper 11. Since the function of the basic configuration is the same as that of the previous embodiment, the description will be omitted to avoid duplication.

Continuing, another ventilation device as an embodiment of the present invention shown in FIGS. 7, 8 and 9 will be described. Seventh
FIG. 8 is a vertical sectional front view showing the configuration of the ventilation device, FIG. 8 is a vertical sectional front view showing another example of use, and FIG. 9 is a vertical sectional side view. The ventilator shown in these figures also has basically the same configuration as that previously set in FIG.
In the drawings, the same reference numerals indicate the same or corresponding parts. However, in the example shown in the figure, the end surface on the air chamber S side has no opening, but the configuration shown in FIG. 1 may be used. The feature of the illustrated ventilation device is that the illuminator 12 is detachable below the space of the main body casing 6 in which the tubular blower 4 is housed.
It is in the point that assembled. The illuminator 12 is provided in a range that does not cover the air chamber S, and when the makeup grill 9 is attached, the light source unit such as a light bulb or a fluorescent tube is covered. Therefore, the relevant portion of the makeup grill 9 is made of a material having a light-transmitting property or a structure having a slit or the like so as to have a light-transmitting property.

That is, in this ventilation device, the ventilation device and the illuminator 12 are integrated into one, and the ceiling surface can be configured in a neat form without a protrusion, and the maintenance inspection of the cylindrical blower 4 is the same as the previous example if the illuminator 12 is removed. Will be implemented. The function of the basic configuration of the ventilator is the same as that of the previous embodiment, so duplicated description will be omitted.

Furthermore, still another embodiment of the present invention shown in FIGS. 10 to 14 will be described. Each of the drawings is a cross-sectional plan view of the ventilation device, in which the ventilation devices of the above-described respective embodiments are arranged in parallel and two units, and a single large makeup grill 9 is attached to the opening portion 5. Other configurations are This is similar to the above-mentioned embodiment. That is, each of the ventilation devices shown in FIGS. 10 to 12 is one in which two tubular blowers 4 are arranged in parallel with the blowing directions reversed.
Each of the ventilation devices in FIG. 13 and FIG. 14 has two cylindrical blowers 4 arranged in parallel with the same blowing direction. In FIG. 10, on the air chamber S side, a ventilator having only the opening 5 communicating with the makeup grill 9 is arranged in parallel, and one is for air supply for taking in outside air, and the other is for exhausting indoor air. Configured for exhaust. Thereby, the air supply / exhaust ventilation device can be configured in a compact form. Then, for example, when only the exhaust side tubular blower 4 is operated, natural air supply can be performed through the air supply side path. At this time, unlike the centrifugal blower, the axial blowers 2 and 3 are convenient because they can pass the wind with less pressure loss due to the idle rotation of the blades.

In FIG. 11, the connection flange 8 facing the blowout side end of the tubular blower 4 is provided on the air supply side ventilation device of the above embodiment.
In the embodiment shown in FIG. 12, the ventilation side of the air supply side is provided with a connection flange 8 at a right angle to the blow-out side end of the tubular blower 4. This is an example in which the air side is configured in two systems. In addition, in FIG. 13 and FIG. 14, the air supply system and the exhaust system can be arranged almost in a straight line, and the air chamber S of each ventilation device is diagonally arranged to prevent a short circuit of air supply and exhaust. be able to. In addition,
The ventilator of any of the above-described embodiments has the function of the ventilator of the basic embodiment described above.

[Effects of the Invention] As is apparent from the description of the embodiments, according to the first aspect of the invention, the cylindrical blower can be attached to and detached from the open portion of the main body casing, and the open portion faces the ceiling surface. You can perform maintenance and inspection without the inspection port of, and by changing the mounting direction of the cylindrical blower, you can easily reverse the blowing direction without operating the accompanying configuration such as ducts,
Also, by providing an opening on the air chamber side, a room with a ventilator can omit duct connection and supply / exhaust air, and a ventilator that can supply / exhaust multiple rooms together with the room with duct connection. Is obtained.

Further, according to the second aspect of the invention, a ventilation device can be obtained in which ventilation paths can be switched particularly by operating a damper, and two-system ventilation can be easily performed.

Further, according to the third invention, the illuminator does not particularly project,
It is possible to obtain a ventilation system that can be connected to the illuminator without any discomfort and that does not cause the illuminator to deteriorate maintainability.

According to the fourth aspect of the invention, in particular, by using two contra-rotating blowers in which tubular blowers are arranged in parallel, a compact and highly functional ventilator capable of simultaneous air supply and exhaust is obtained. To be

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of a ventilation device according to an embodiment of the present invention, FIGS. 2 and 3 are cross-sectional plan views showing different usage examples of the ventilation device, and FIG. FIG. 5 is a cross-sectional plan view showing another embodiment, FIGS. 5 and 6 are vertical front views and perspective views showing the configuration of a ventilation device as another embodiment, and FIG. 7 is a ventilation device according to another embodiment. FIG. 8 is a vertical sectional front view showing the structure of FIG. 8, FIG. 8 is a vertical sectional front view showing another example of use, and FIG. 9 is a vertical sectional side view thereof, FIG. 10, FIG.
12, FIG. 13 and FIG. 14 are cross-sectional plan views of a ventilation device showing still another embodiment of the present invention. In the figure, 1 is a casing, 2 and 3 are axial blowers, 4 is a cylindrical blower, 5 is an opening, 6 is a main casing, 7 is an opening, 9 is a decorative grill, 10 is a duct, 11 is a switching damper, 12 Is an illuminator. The same reference numerals in the drawings indicate the same or corresponding parts.

Claims (4)

(57) [Claims] 1. A cylindrical blower in which a plurality of axial blowers are assembled in series in a cylindrical casing whose both ends are open, and this tubular blower as a whole are enclosed, and one open end side of the cylindrical blower. And a main body casing having an open portion on one side that constitutes the air chamber, and for ventilation on the end surface on the opposite side of the air chamber of the main body casing and the end surface on the air chamber side or the side surface adjacent to this end surface. An opening is provided, and the opening allows the attachment and detachment of the tubular blower and the mounting direction to be changed, and the air supply and exhaust from the main casing installation room and the room connected to the ventilation opening. Ventilation device characterized by enabling air supply and exhaust. 2. A double-reversal type cylindrical blower in which two axial blowers are assembled in series on a center line in a cylindrical casing with both ends open, and the entire cylindrical blower is included. It has a main body casing that extends beyond one open end of the tubular blower and that forms an air chamber inside the part, and has an opening for ventilation on the end face of the main body casing on the side opposite the air chamber. An air passage opening is provided on the end surface or a side surface adjacent to the end surface on the air chamber side, and one of the openings on the end surface or the side surface adjacent to the end surface has the other opening when one opening is opened. A ventilator comprising a damper which is closed and which is closed when the other opening is opened. 3. A double reversal type cylindrical blower in which two axial blowers are assembled in series on a center line in a cylindrical casing with both ends open, and the entire cylindrical blower is included. It has a main body casing that extends beyond one open end of the tubular blower and that forms an air chamber inside the part, and has an opening for ventilation on the end face of the main body casing on the side opposite the air chamber. The ventilation device is characterized in that an opening for ventilation is provided on at least one of the end surface or the side surface adjacent to the end surface on the air chamber side, and an illuminator is provided on the lower surface of the main body casing. 4. The ventilation device according to claim 2, wherein the tubular blowers are two double reversal type blowers arranged in parallel.