JP3049878U - Air conditioner and damper device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a damper device for switching a flow path of a ventilation duct, which is used in a building thermal storage type air conditioner, which has a simple structure and low power consumption. SOLUTION: An air flow passing through a heat exchanger is selected as a first flow passage 9a for sending the air flow to a driving body to be stored in heat and a second flow passage 9b for sending the air flow to a region to be air-conditioned. A damper device used in an air-conditioning system that performs selective heat transfer to store heat in a vehicle body, and an air conditioner incorporating such a damper device. The damper device includes a single movable member that rotates about a rotation shaft 61 between a first position that closes the first flow path and a second position that closes the second flow path. To switch the flow path. As the movable member, a rotary drum 62 or a damper blade that rotates around a rotary axis can be used, but the rotary drum 62 is small in that the resistance received from the air during movement in the air flow is small. Is preferred.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a building thermal storage type air conditioner that uses a concrete slab or the like of a building as a thermal storage medium, and a damper device used therein.

[0002]

[Prior art]

 In recent years, attention has been paid to building thermal storage type air conditioners in order to effectively utilize nighttime power and reduce peak daytime power. FIG. 1 shows an air conditioner disclosed in Japanese Unexamined Patent Application Publication No. 9-79613 (the present applicant is one of the joint applicants for this application) as such a heat storage air conditioner.

A fan coil unit 6 including a blower 7 and a heat exchanger 8 is arranged in a ceiling space between the ceiling member 2 and the concrete slab 4, and is provided from the heat exchanger 8 to the room 1. An extended air duct 9 is provided. The air duct 9 is branched on the way, and a branch path 9a (first flow path) is opened in the ceiling space.

[0004] Two damper blades of a first damper 11 and a second damper 12 are arranged at a branch portion of the air duct 9. During normal operation in the daytime (generally from 8:00 to 18:00), the first damper 11 is closed and the second damper 12 is opened. As a result, the airflow that has passed through the heat exchanger 8 can be sent into the room through the duct 9b (second flow path). Therefore, cooling air (or warm air) is blown into the room to perform cooling operation (or heating operation). It can be carried out.

On the other hand, during nighttime heat storage operation (generally from 22:00 to 8:00), the first damper 11 is opened and the second damper 12 is closed. As a result, the airflow that has passed through the heat exchanger 8 can be sent into the ceiling space through the duct 9a (first flow path), and the cooling air (or hot air) is blown onto the concrete slab 4 in the ceiling space to cool the air. Cool (or heat) the cleat slab. In this way, the cold (or warm) heat stored at night can be used as cooling (or heating) during the day on the following day. The blower 7 and the dampers 11 and 12 are controlled by the control device 14.

In this air conditioner, two dampers are used to switch the flow path between the case where the air passing through the heat exchanger 8 is sent indoors and the case where the air is sent to the ceiling space. In addition, as can be seen from FIG. 1, the blades of each damper need to be rotated against the airflow flowing in the air duct 9, so that a large driving force is required.

[0007]

[Problems to be solved by the invention]

 Therefore, the technical problem to be solved by the present invention is to provide a damper device for switching the flow path of the ventilation duct, which is used in the building thermal storage type air conditioning equipment, and has a simple structure and low power consumption. It is to be.

[0008]

[Means, actions and effects for solving the problem]

 The present invention has been made to effectively solve the above problems, and provides a damper device and an air conditioner defined below.

In other words, the damper device according to the present invention has a first flow path for sending the air flow passing through the heat exchanger to the heat generator to be stored, and a second flow path for sending the air flow to the air-conditioned area. A damper device for use in an air conditioner that selectively sends heat to two flow paths and performs heat storage of a body, comprising a first position for closing a first flow path and a second position for closing a second flow path. The flow path is switched using a single movable member that rotates about a rotation axis.

In the above-described damper device, since only one movable member is driven by consuming electric power, compared with the conventional example of FIG. 1 in which the first and second two dampers are used, The structure is simple and the power consumption is small.

As the movable member used in the damper device of the present invention, two opposing disks whose centers are connected to each other by a rotation shaft, and a part of the periphery of both disks are connected and extend. It is preferable to employ a rotating drum composed of a side wall having an arc-shaped cross section. In this drum, the side wall rotates between the first position and the second position by rotating the drum about the rotation axis.

When such a rotating drum is employed as a movable member, the arc-shaped side wall of the cross section receives less resistance from the air during movement in the air flow than the damper blade shown in FIG. Therefore, it is more preferable in terms of labor saving.

[0013] Further, according to the present invention, there is provided a ceiling-embedded air conditioner incorporating the damper device, wherein the damper device is disposed adjacent to a heat exchanger disposed in the air conditioner downstream. An air conditioner is provided. According to such an air conditioner, not only can labor saving be achieved as described above, but also there is no need to perform special piping work or the like behind the ceiling, and the construction process does not become complicated.

Also in this case, the damper device has two opposite disks connected to each other at the center by a rotation shaft, and an arc-shaped cross section extending by connecting a part of the periphery of both disks. It is preferable that the movable drum is composed of a single sided plate member that rotates around a rotation axis.

[0015]

[Embodiment of the invention]

 Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 2 is a cross-sectional view of a main part of the damper device 50 according to the embodiment of the present invention. This damper device is installed in a branch portion of a duct in place of the first and second dampers 11 and 12 in the air conditioner shown in FIG.

In FIG. 2, reference numerals 51, 52, and 53 denote duct connection collars, respectively. The collar 51 is connected to a duct following the fan coil unit 6, and the collar 52 is connected to a duct 9 b (second flow path) following the outlet 2 a provided in the ceiling member 2. Further, the color 53 is connected to a duct constituting the branch path 9a (first flow path).

The damper device 50 has a swing type drum 62 that can rotate about 90 ° about a rotation shaft 61. That is, as shown in the perspective view of FIG. 3, the drum 62 is a member formed by connecting a part of the peripheral edge of two opposing discs 62b by an arc-shaped side wall 62a. The centers of the disks are connected by a rotating shaft 61. When the drum 62 rotates under the control of a control device (not shown), the arc-shaped side wall 62a rotates between a first position A shown by a broken line and a second position B shown by a solid line in FIG. It is possible.

When the arc-shaped side wall 62a is at the first position A shown by the broken line, the flow path (first flow path) leading to the duct 9a toward the concrete slab 4 (see FIG. 1) is closed, so that All the airflow from the fan coil unit goes to the room. The flow of air at this time is indicated by a dashed arrow in FIG.

When the arc-shaped side wall 62a is at the second position B shown by the solid line, the flow path (second flow path) leading to the duct 9b toward the room is closed, so that the air flow from the fan coil unit is closed. All head for concrete slab 4. The flow of air at this time is shown by a solid line arrow in FIG.

In the conventional example shown in FIG. 1, two dampers (two movable members) are used as means for changing the flow path of the air from the fan coil unit 6, but as shown in FIG. By using the damper device of the present invention, it is possible to switch the air flow path with a single movable member (drum 62). Also, since the arc-shaped side wall 62a does not move in the direction of the air flow, the air side wall 62a does not move when moving in the air flow path as compared with the damper using the blade member shown in FIG. A small driving force is sufficient because the air resistance received from the flow is small.

FIG. 4 shows the ceiling-mounted air conditioner of the present invention having a built-in damper device. The damper device used in this air conditioner differs from the damper device shown in FIG. 2 in the following points. That is, as a movable member that rotates between the first position A and the second position B, a single-plate-shaped damper blade 72 is employed instead of the swing drum. The damper blade 72 is disposed adjacent to and downstream of the heat exchanger 82, and has a rotation shaft 71 as a center between a first position A indicated by a broken line and a second position B indicated by a solid line. And can be rotated under the control of a control device (not shown).

When the damper blade 72 is at the first position A shown by the broken line, the air outlet 83 for blowing the air passing through the heat exchanger 82 to the concrete slab 4 is closed. The flow path 70b (second flow path) from the air flow to the room is opened, and all the airflow passing through the heat exchanger 82 goes to the room. The flow of air at this time is indicated by a broken arrow in FIG.

When the damper blade 72 is at the second position B shown by the solid line, the passage toward the outlet 84 for sending the air passing through the heat exchanger 82 into the room is closed. The flow path 70a (first flow path) toward the ceiling space is opened, and all the airflow passing through the heat exchanger 82 is directed to the concrete slab 4. The flow of air at this time is shown by a solid line arrow in FIG.

The damper device used in the air conditioner shown in FIG. 4 uses damper blades as in the case of the conventional example shown in FIG. 1, but the number is only one instead of two. is there. That is, the structure is simpler and the power consumption is smaller than in the conventional example of FIG. 1 in which the first and second dampers are used. Furthermore, since the damper device is built into the air conditioner itself, piping behind the ceiling as in the case of the air conditioner shown in FIG. 1 can be omitted, and the construction process can be simplified.

The swing type drum 62 shown in FIG. 2 may be directly incorporated in the air conditioner shown in FIG. 4, and the damper blade 72 shown in FIG. 4 is arranged in a duct extending from the air conditioner. Needless to say, this may be done.

[Brief description of the drawings]

FIG. 1 is a schematic view illustrating an air conditioner of a thermal storage type employing a conventional damper device.

FIG. 2 is a sectional view of a main part of the damper device according to the first embodiment of the present invention.

FIG. 3 is a perspective view showing a rotating drum used in the damper device of FIG. 2;

FIG. 4 is a schematic view illustrating the ceiling-mounted air conditioner of the present invention incorporating a damper device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air-conditioned room 2 Ceiling member 2a Inlet 2b Outlet 3 Ceiling space 4 Concrete slab 6 Fan coil unit 7 Blower 8 Heat exchanger 9 Blast duct 9a 1st flow path 9b 2nd flow path 11 1st damper 12 2nd damper 14 Control unit 16 Outdoor unit 51, 52, 53 Duct connecting collar 61 Rotating shaft 62 Drum 62a Arc-shaped side wall 62b Disk 70a First flow path 70b Second flow path 71 Rotating shaft 72 Damper blade 81 Filter 82 Heat exchange 83, 84 Outlet 85 Blower

Claims (4)

[Utility model registration claims] 1. A first flow path (9a, 70a) for transmitting an air flow passing through a heat exchanger to a driving body to be stored, and a second flow for transmitting the air flow to a region to be air-conditioned. A damper device used in an air-conditioning system that selectively sends heat to a road (9b, 70b) to store heat in a vehicle body, wherein a first position (A) for closing a first flow path and a second flow path are closed. Characterized in that the flow path is switched using a single movable member (62, 72) that rotates about a rotation axis (61, 71) between the second position (B) and the second position (B). apparatus. 2. The movable member has a rotation shaft (6
Two opposing disks (62b) connected in 1) and an arc-shaped side wall (62a) extending by connecting a part of the periphery of both disks.
And a side wall (62a) is moved to a first position (A) and a second position (B) by rotation of the drum about a rotation shaft (61). The damper device according to claim 1, wherein the damper device rotates between the first and second positions. 3. A ceiling-embedded air conditioner incorporating the damper device according to claim 1 or 2, wherein the damper device is disposed adjacent to a downstream side of a heat exchanger disposed in the air conditioner. An air conditioner characterized by being performed. 4. A ceiling-embedded air conditioner incorporating a damper device according to claim 1, wherein said movable member is constituted by a single plate member (72) which rotates about a rotation shaft (71). Wherein the damper device is disposed adjacent to a downstream side of a heat exchanger disposed in the air conditioner,
Air conditioner.