JPH031710Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

The present invention relates to a fan coil unit, and more particularly to a fan coil unit of a concealed ceiling hanging type.

[Prior art and its problems]

Generally, in the case of ceiling-suspended concealed fan coil units, filters with various performances are attached depending on the purpose of the air-conditioned room. Figures 5 and 6 are schematic diagrams showing the general configurations of a conventional fan coil unit with a normal filter and a fan coil unit with a high-performance filter. 2 and a casing 1 that houses the main components such as a hot and cold water coil 3.
A duct portion 4 is fitted from below. This duct portion 4 separates and forms a flow path for blown air (indicated by a solid line arrow) and a flow path for suction air (indicated by a broken line arrow), and
The lower end surface thereof is formed in a ceiling panel member 7, and the ceiling panel member 7 is formed with an air outlet 5 and an inlet 6. In the figure, the suction air flow path is shown by a broken line arrow, and the blowing air flow path is shown by a solid line arrow.

[Problem that the invention attempts to solve]

By the way, a filter 15 or a high-performance filter 1 is normally installed in the suction air flow path of the duct section 4.
4, depending on the purpose of the air-conditioned room, a medium-performance filter is installed, but the installation dimensions are different, so even though the main components such as the blower 2 and the cold/hot water coil 3 are almost the same, Regardless, the casing 1 and the duct portion 4 are manufactured as separate parts. Therefore, it is desired that these parts be made common in order to improve productivity. The present invention has been devised in view of the above-mentioned problems and to effectively solve them. Therefore, the object is to provide a fan coil unit in which the casing and duct portion can be constructed from the same parts as the other main components, regardless of the size difference depending on the type of filter to be attached.

[Means to solve the problem]

The fan coil unit according to the present invention has the following configuration in order to solve the problems of the prior art and achieve the purpose. That is, a duct section that separates and partitions a suction air flow path and a blowout air flow path is attached to the lower end of the casing that houses the blower, heat exchange coil, etc., and the suction air flow path of the duct portion is In the fan coil unit to which the filter is attached, a part of the outer circumferential wall forming the duct portion is configured to be detachable so as to variably adjust the length of the suction air flow path at the attachment portion of the filter.

[Effect]

According to the fan coil unit according to the present invention,
When the removable portion of the outer peripheral wall of the duct section is attached, the length of the suction air flow path at the filter attachment portion becomes longer, and a space for attaching a high-performance filter or a medium-performance filter can be secured. When the removable portion of the outer circumferential wall of the duct section is removed, the length of the suction air flow path at the filter attachment portion is shortened, thereby securing the space normally required for attaching the filter. Only the duct part is involved in changing the filter installation space, and the size of the casing that houses the main components such as the blower and heat exchange coil does not change.Therefore, when changing the filter specifications, the casing does not change. Use the same parts.

[Effect of the idea]

As is clear from the above description, the present invention provides the following excellent effects. In other words, regardless of the size difference depending on the type of filter to be installed, the casing and duct can be constructed from the same parts like the other main components, so even if the fan coil unit requires a change in filter specifications, it can be manufactured easily. Improves sex.

【Example】

A preferred embodiment of the present invention will be described below with reference to FIGS. 1 to 4. Figure 1 is a schematic diagram showing the general configuration of a fan coil unit according to the present invention assembled with a standard filter specification, and Figure 2 is a diagram showing a fan coil unit according to the present invention assembled with a high-performance filter specification. FIG. 3 is a schematic diagram showing the general configuration of the present invention, and FIG. 3 is a schematic diagram showing the detachable portion of the outer circumferential wall of the duct portion when the fan coil unit according to the present invention is disassembled. Main components such as a blower 2 and a hot/cold water coil 3 serving as a heat exchange coil are housed within the casing 1, and a duct portion 4 is attached to the lower end thereof. An air outlet 5 is provided on the lower end surface of the duct portion 4.
A ceiling panel member 7 having a suction port 6 is attached. Inside the duct part 4, there is a blowout air passage 8 (indicated by a solid line arrow in the figure) and a suction air passage 9 (indicated by a broken line arrow in the figure) connected to the outlet 5 and inlet 6 of the ceiling panel member 7. ) are separated to form compartments. The shape of the duct portion 4 is approximately rectangular so that its lower end surface is connected to the ceiling panel member 7.
A portion including this lower end surface and forming the lateral flow path 10 occupies the peripheral edge portion of the rectangle, and this lateral flow path 1
A vertical flow path 11 is formed rising upward from one side of 0. The blown air flow path 8 is connected to this horizontal flow path 1.
0 and the vertical flow path 11 are connected, and on the other hand,
The suction air flow path 9 is surrounded by the blowout air flow path 8.
The duct portion 4 occupies approximately the center of the portion surrounded by the horizontal flow path 10 and facing the lower end surface of the duct portion 4 . Further, above the outer peripheral wall 12 of the portion defining the horizontal flow path 10 of the blown air flow path 8 and on which the vertical flow path 11 is not formed, the outer peripheral wall 12 is placed. A removable outer circumferential wall 13 that extends upward and defines a suction air flow path 9 inside thereof is formed as a part of the outer circumferential wall of the duct portion 4 .
That is, the extended suction air flow path 9 is defined on three sides by the outer circumferential wall 13 and on the remaining one side by one side wall 17 of the vertical flow path 11 of the blowout air flow path 8. When the outer peripheral wall 13 is attached, as shown in FIG. 2, the casing 1 and the duct part 4 can be connected even if the high-performance filter 14 is attached, and as shown in FIG. Of course, if you remove it, you can attach the normal filter 15 to the casing 1.
and the duct part 4 can be connected. In addition, if it is decided to attach the normal filter 15 at the assembly stage, the vertical flow path 11 of the blown air flow path 8 may be used with an appropriate length. In this way, in this embodiment, the casing 1 can be a common part, and the duct part 4 can also be a common part, whether it is a normal filter 15 specification, a high-performance filter 14 specification, or, of course, a medium-performance filter specification. The outer peripheral wall 13 may be attached or detached according to the specifications. Further, in the above embodiment, an example was shown in which the air outlet 5 and the air inlet 6 were arranged on both sides of the ceiling panel member 7, but as shown in FIG.
When only the air outlet 5 is arranged on one side of the ceiling panel member 7 and only the inlet 6 is arranged on the other side, the vertical passage 11 and the horizontal passage 10 of the duct part 4 are partitioned, and the blown air is The flow path 8 is comprised only of the vertical flow path 11, and the horizontal flow path 10 constitutes a part of the suction air flow path 9. Note that 16 indicated by a broken line in the center of the ceiling panel member 7 is a cover member that can be opened and closed, and can be opened and closed for maintenance management such as replacing a filter.

[Brief explanation of drawings]

Figure 1 is a schematic diagram showing the general configuration of a fan coil unit according to the present invention assembled with specifications with a normal filter, and Figure 2 is a schematic diagram showing the fan coil unit according to the present invention assembled with specifications with a high-performance filter. FIG. 3 is a schematic diagram showing the general configuration of the present invention, and FIG.
FIG. 5 is a schematic diagram showing the general configuration of another embodiment of the fan coil unit according to the present invention, FIG. FIG. 6 is a schematic diagram showing a schematic configuration of a conventional fan coil unit assembled with a high-performance filter. DESCRIPTION OF SYMBOLS 1...Casing, 2...Blower, 3...Cold/hot water coil as a heat exchange coil, 4...Duct section, 8...Blowout air channel, 9...Suction air channel, 13...Outer peripheral wall , 14...High performance filter as a filter, 15... Ordinary filter as a filter.

Claims (1)

[Claim for Utility Model Registration] A duct portion 4 that separates and partitions a suction air flow path 9 and a blowout air flow path 8 is attached to the lower end of the casing 1 that houses the blower 2 and the heat exchange coil 3. , a fan coil unit in which filters 14 and 15 are attached to the suction air passage 9 of the duct portion 4, and a part of the outer peripheral wall 13 forming the duct portion 4 is located at the attachment portion of the filters 14 and 15. A fan coil unit characterized in that it is configured to be detachable so as to variably adjust the flow path length of the suction air flow path 9.