JP2005180735A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress faults during air conditioning operation, and to efficiently carry out work without trouble during cleaning work of a coil. <P>SOLUTION: The air conditioner is provided with a casing 5 provided with air passage port parts 5a and 5b respectively in both air duct ends, a fan 6 and the coil 7 juxtaposed along an air duct in the casing 5, and a drain pan 8 provided below the coil 7. An opening and closing port 10 capable of freely opening and closing is provided in at least one of a side portion or an upper portion of a part covering the coil 7 of a casing 5 circumferential wall, and a partition plate attachment and detachment part 11 for freely attaching and detaching a partition plate P partitioning the air duct is provided in a neighborhood of an arrangement part of the coil 7. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention includes a casing provided with air passage openings at both ends of the air passage, a fan and a coil provided side by side along the air passage in the casing, and a drain pan provided below the coil. Relates to air conditioning equipment.

  Conventionally, in this type of air conditioner, when used for a long period of time, dirt or dust in the air adheres to the contact surface, resulting in contamination. In particular, the coil in which fine air gaps are secured between a large number of fins is more easily contaminated than other portions. When the dirt becomes severe, there is a risk of impeding the air flow and heat exchange as air conditioning, so it is necessary to perform cleaning in order to prevent the occurrence of trouble. However, when a filter is provided on the entrance side of the air passage, the degree of contamination can be significantly reduced, and there is no need to frequently clean the coil, for example, once every few years. There are many examples.

Conventional air conditioners include mechanical dampers provided separately on the upper and lower sides of the coil installation part, an injection nozzle that injects cleaning liquid onto the coil, and a drying mechanism that blows dry air after cleaning However, there is a device that automatically cleans a coil by providing a drying device composed of the like in the casing (see, for example, Patent Document 1). However, the drying device is liable to hinder air flow and costs. There was a problem such as high. In general, the structure shown in FIGS. 8 and 9 is frequently used.
That is, the air conditioner 20 is formed so that the bottom portion 5c of the casing 5 can be removed. After removing the bottom portion 5c and the connected ducts 2 and the like, the fan 6 is connected to each unit from the opening 21. The coil 7 can be cleaned by inserting the cleaning nozzle 22 into the removed and removed space.

JP2003-166799A (FIG. 1)

According to the former air conditioner described above, as already described, there is a problem that air flow failure is liable to occur and the cost is likely to increase, and according to the latter air conditioner that has improved the problem, It is necessary to remove the fan unit every time it is cleaned, and there is a problem that it takes time and effort. In addition, there is a problem that the cleaning liquid is scattered to the duct portion and the electric parts in the air passage are likely to break down.
In addition, when the installation location of the air conditioner is a space behind the ceiling, for example, the fan unit must be removed and cleaned in a narrow space. There is also a problem that tends to decrease. However, in order to alleviate these problems, there is a method in which a large inspection port is formed in the ceiling portion directly under the air conditioner so that the bottom of the casing and the fan unit can be removed through the large inspection port. In this case, however, the aesthetics of the room design is liable to deteriorate, which is not preferable.

  Accordingly, an object of the present invention is to provide an air conditioner that solves the above-described problems, is less likely to cause a failure during an air conditioning operation, and that can be efficiently performed without trouble during coil cleaning operations.

  A first characteristic configuration of the present invention is a casing provided with wind passage openings at both ends of the air passage, fans and coils provided side by side along the air passage in the casing, and below the coils. In the air conditioner provided with the drain pan provided, an opening / closing port that can be freely opened and closed is provided in at least one of a side part or an upper part of the casing surrounding wall that covers the coil, and the arrangement of the coil A partition plate attaching / detaching part is provided in the vicinity of the part so that the partition plate for partitioning the air path can be attached and detached.

According to the first characteristic configuration of the present invention, an openable opening / closing port is provided in at least one of a side portion or an upper portion of the casing surrounding wall in the casing peripheral wall, Since the partition plate attaching / detaching portion that can freely attach and detach the partition plate that partitions the air passage is provided in the vicinity of the arrangement portion, the opening / closing port can be opened or closed, and the partition plate It is easy to attach and remove the partition plate to the detachable part.
And since the said opening / closing opening is formed in the side part (or upper part) of a coil, even in the state where the air conditioner is installed in the narrow space such as the back of the ceiling, the side of the ceiling plate A cleaning nozzle can be thrust into the vicinity of the coil through an opening / closing port opened at (or above), and the cleaning operation can be easily performed. Of course, it is effective not only for cleaning but also for simply observing the situation.
In addition, if a partition plate is attached to the partition plate attaching / detaching part, it is possible to prevent the cleaning liquid from splashing in the air passage by the partition plate and prevent it from being applied to the fan, duct, etc. The cleaning operation can be performed without worrying about the application of the cleaning liquid. As a result, the cleaning operation can be performed efficiently even in a narrow space. Of course, it is also possible to prevent the occurrence of a failure of the electrical component due to cleaning.
On the other hand, by removing the partition plate and closing the opening / closing port, a predetermined air passage is secured in the air conditioner, so that it can be restored to a normal use state.
As a result of the above, it is difficult to cause a failure during the air-conditioning operation, and the work can be performed efficiently without trouble during the coil cleaning work.

  According to a second characteristic configuration of the present invention, the partition plate attaching / detaching portion is disposed between the coil and the fan and between the wind passage opening portion on the coil side and the coil. is there.

According to the second characteristic configuration of the present invention, in addition to being able to achieve the above-described operation and effect of the first characteristic configuration of the present invention, the coil and the fan, and the coil side The partition plate can be freely attached to or detached from the partition plate attaching / detaching portion respectively disposed between the wind passage opening portion and the coil.
Therefore, if the partition plates are attached to both partition plate attachment / detachment sections, it is possible to block the air path on both sides of the coil to be cleaned, and the cleaning liquid is scattered in the fan in the air conditioner or the continuous duct. It can be prevented more reliably. As a result, it is possible to prevent electrical components from being damaged due to the application of the cleaning liquid.

  According to a third characteristic configuration of the present invention, the partition plate attaching / detaching portion is formed by forming the partition plate as a slidable groove portion.

According to the third characteristic configuration of the present invention, in addition to being able to achieve the above-described operational effects according to the first or second characteristic configuration of the present invention, since it has a simple structure such as a groove portion, it is possible to manufacture a component member. The effort can be minimized, and the attaching / detaching operation of the partition plate can be realized by an extremely simple operation of sliding movement.
As a result, the cost of the apparatus itself can be reduced and the workability of the cleaning work can be improved.

  According to a fourth characteristic configuration of the present invention, a detachable partition plate is provided in the partition plate attaching / detaching portion, and the partition plate is provided with illumination means.

According to the 4th characteristic structure of this invention, in addition to being able to achieve the above-mentioned effect by one of the 1st-3rd characteristic structure of this invention, it is not necessary to install a lighting fixture separately. If the partition plate is attached to the partition plate attaching / detaching portion, the vicinity thereof can be illuminated by the illumination means.
Therefore, for example, even when the air conditioner is installed in a space such as the back of the ceiling, the work can be performed while the coil portion is brightly illuminated by the illumination means and visually confirmed. As a result, it is possible to perform the cleaning operation more reliably and efficiently.
In addition, since the illumination means is provided together with the partition plate, it is possible to save space compared to separately installing a lighting fixture, and it is easier to carry out inspection work and cleaning work in a narrow place. It becomes possible to do.

  Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the parts indicated by the same reference numerals as those in the conventional example indicate the same or corresponding parts.

FIG. 1 shows a situation where a fan coil unit 1 which is an embodiment of an air conditioner of the present invention is installed.
The fan coil unit 1 and the duct 2 connected to and connected to the fan coil unit 1 are installed in the space behind the ceiling, and are suspended and supported from the ceiling slab 3 by the hanging metal fittings 4.

The fan coil unit 1 will be described in detail.
As shown in FIGS. 1 to 3, the outer periphery of the fan coil unit 1 is covered with a box-shaped casing 5 made of metal, and an inner space of the casing 5 serves as an air passage.
Inside the casing 5, the fan 6 and the coil 7 are installed side by side along the air path. And the casing 5 is notched under the said coil 7, The drain pan 8 is attached to the part.
In addition, duct connection portions (corresponding to wind passage opening portions) 5a and 5b are provided at both ends of the air passage of the casing 5 so that the duct 2 can be connected and communicated. The air passage is set so that air flows from the fan 6 side to the coil 7 side, and a plurality of filters are arranged between the duct connection portion 5a on the upper side of the air passage and the fan 6 in the direction crossing the air passage. 9 is provided in a detachable state. This filter 9 is attached to the air passage so that it can be inserted and removed from the side of the casing 5 so that maintenance can be performed.
A hanging metal fitting 4 from the ceiling slab 3 is attached to an upper plate portion of the casing 5.

As shown in FIG. 3, the fan 6 includes a fan body 6A, an electric motor 6B that rotates the fan body 6A, and a support plate 6C that supports them.
The support plate 6 </ b> C is attached in a state in which its outer peripheral portion is inscribed in the casing 5. And the through-hole used as an air path is provided in each right and left, The said fan main body 6A is being fixed to 6 C of support plates in the state in which the blowing outlet of the said fan main body 6A corresponds to the through-hole. The electric motor 6B is attached to the center of the support plate 6C.
Therefore, by rotating the electric motor 6B, the fan main body 6A rotates and can blow air from the upper side of the air path to the lower side.

As shown in FIG. 4, the coil 7 includes a large number of metal fins 7a arranged in parallel with a gap, and a metal heat exchange pipe 7b provided so as to penetrate the large number of fins 7a. By passing, for example, a refrigerant through the heat exchange pipe 7b, the air passing through the air passage formed by the gaps between the fins 7a passes through the fins 7a and the heat exchange pipe 7b. It is configured to be able to exchange heat with the refrigerant.
Incidentally, the coil 7 is attached to the side wall portion of the casing 5, and the heat exchange pipe 7 b is also provided so as to extend to the side wall portion of the casing 5.

As shown in FIG. 4, openable and closable opening / closing ports 10 are provided on both sides of the side wall of the casing 5 where the heat exchange pipe 7 b of the coil 7 extends.
If an example of the structure of the opening / closing port 10 is given, a lid plate 10a capable of closing an opening h formed in the casing side wall portion and a plurality of screws 10b for fixing the lid plate 10a to a casing portion around the opening h are provided. A provided configuration is conceivable. Of course, other structures can be employed. Then, the opening h appears on the surface of the opening / closing port 10 by removing the lid plate 10a, so that the internal situation can be observed through the opening h, inspection can be performed, and the coil 7 can be washed. The coil 7 can be cleaned by inserting the cleaning nozzle.

Further, in the casing 5, a groove portion (an example of a partition plate attaching / detaching portion) 11 detachably attaching the partition plate P partitioning the air path is provided in the vicinity of the arrangement portion of the coil 7.
As shown in FIGS. 3 and 4, the groove 11 is provided separately in a state in which the recesses face each other in the direction crossing the air passage. The planar installation position is provided between the coil 7 and the fan 6 and between the coil 7 and the duct connecting portion 5b on the lower side of the air passage. Therefore, with the opening / closing port 10 open, the partition plate P is partitioned from the outside of the casing 5 into a state in which the air path is partitioned by pushing the upper and lower edges of the partition plate P into the upper and lower groove portions 11 and sliding them. Can be set. Incidentally, it is preferable that the partition plate P is formed of a material that is not supported even when the cleaning liquid is applied, such as metal or synthetic resin. Further, if the partition plate P is provided with flexibility, the partition plate P can be attached to and detached from the groove 11. It can be done more easily.
Thus, by setting the partition plate P, it is possible to prevent the cleaning liquid from being applied to the fan 6 and the electrical components in the duct when the coil 7 is cleaned through the opening / closing port 10.
Incidentally, for maintenance of the filter 9, an inspection port T is often provided on the side of the ceiling plate portion of the fan coil unit 1 (see FIG. 3). Even if the inspection port T is used, it is possible to carry out sufficiently.

  According to the fan coil unit of the present embodiment, the fan coil unit can be efficiently cleaned using the conventional inspection port T without forming a large opening for cleaning on the ceiling. Further, by removing the partition plate P and attaching the lid plate 10a, the fan coil unit 1 can be restored to a state where normal operation is possible.

[Another embodiment]
Other embodiments will be described below.

<1> As described in the previous embodiment, the opening / closing port 10 is not limited to the one provided on the side portion of the portion covering the coil 7 on the casing 5 peripheral wall. For example, the coil 7 on the casing peripheral wall What is provided in the upper part of the location which covers can be provided in both the side part and the upper part. These are collectively referred to as opening and closing ports.
<2> The opening / closing structure of the opening / closing port is not limited to that described in the previous embodiment. For example, a structure in which the lid plate 10 a is attached to the casing 5 via a hinge, or the lid plate 10 a is attached to the casing 5. A lid or a groove for attaching / detaching the lid plate 10a may be formed, and the lid plate 10a may be configured to be opened and closed by sliding.
<3> The lid plate 10a may be formed so that it can be used as the partition plate P in a detached state. In this case, when the air conditioner is cleaned, the lid plate 10a is installed in a narrow place such as the back of the ceiling. This eliminates the need to bring the partition plate P, saves time and allows the work to proceed efficiently.
<4> The partition plate attaching / detaching portion 11 is not limited to the groove portion described in the previous embodiment. For example, a bent piece portion is provided on the inner peripheral wall of the casing, and the partition plate P is arranged in the vicinity thereof. In the state, a structure in which the bent piece portion is bent by hand and locked to the partition plate P, or a magic tape (trade name) is applied to the inner peripheral wall of the casing 5 and the corresponding portion of the partition plate P, respectively. It may be configured so that it can be attached and detached by mutual locking (and unlocking), or it may use screws or fasteners, etc. To do.
<5> The partition plate P is not limited to that described in the previous embodiment. For example, as shown in FIG. 5, if the illumination unit 12 is provided, the coil 7 is illuminated at a very close position. It is possible to perform inspection and cleaning in an easy-to-see state.
Incidentally, as shown in FIG. 6, the illumination means 12 is composed of an on-surface light emitter 13 integrated with an insulating layer 13c and a phosphor layer 13d interposed between sheet-like electrodes 13a and 13b. Yes, the illumination means 12 is bonded to the side surface of the coil 7 of the partition plate P, and a voltage is applied to the electrodes 13a and 13b, so that the vicinity of the coil 7 installation portion can be illuminated brightly.
Moreover, as another example of the illumination means 12, you may provide the surface luminous body which apply | coated the luminous pigment to the surface of the partition plate P. As shown in FIG. In this case, it is preferable to give light energy before attaching the partition plate P to the partition plate attaching / detaching portion 11.
Of course, a fluorescent lamp, a light bulb, or the like may be provided integrally with the partition plate P as the illumination means 12.
Furthermore, you may comprise with the reflective mirror comprised so that the coil 7 installation part could be illuminated by reflecting the light irradiated to the partition plate P from another position.
These are collectively referred to as illumination means.
Further, in the previous embodiment, it has been described that the partition plate P may be flexible. In addition to this, for example, as shown in FIG. It may be configured to be able to work while being bent at the bent portion 14 when being attached to or detached from the partition plate attaching / detaching portion 11. In this case, for example, at the time of maintenance work in a narrow space such as the back of the ceiling, the partition plate P can be handled while being bent in accordance with the work space, and workability can be improved. Furthermore, as another similar example, the partition plate P is configured to be divided into a plurality of parts, and each partition plate is attached to the partition plate attaching / detaching portion 11 while being connected by the connecting portion, or is detached while removing the connecting portion at the time of removal. It is also possible to configure it so that it can be divided into threshold plates. In this case, the partition plate P can be divided into each divided partition plate, so that compactness can be realized and the partition plate can be carried into and out of a narrow work space more easily. become able to.
<6> The air conditioner is not limited to the fan coil unit described in the previous embodiment. For example, the air conditioner may be a stationary installation type other than the ceiling back installation type.
Further, both the wind passage opening portions of the casing 5 are not limited to being configured as duct connection portions as described in the previous embodiment. For example, the wind passage opening portion on the wind inlet side or the wind Only one of the wind passage ports on the outlet side of the air outlet is used as a duct connection portion, and the other is used without connecting a duct, or in a state where no duct is connected to any wind passage port portion. It may be used. A use example in which a duct is not connected includes a case in which the air conditioner is installed in a state of penetrating the partition, and the wind passage ports are separately located on both sides of the partition.

  In addition, as mentioned above, although the code | symbol was written in order to make contrast with drawing convenient, this invention is not limited to the structure of an accompanying drawing by this entry.

Side view showing installation status of fan coil unit Side view sectional drawing which shows the state which attached the partition plate to the fan coil unit Partially cutaway top view sectional view showing a state where the partition plate is attached to the fan coil unit The perspective view which shows the attachment condition of a partition plate The perspective view which shows the attachment condition of the partition plate of another embodiment Conceptual sectional view showing an example of illumination means The perspective view which shows the partition plate of another embodiment. Side view sectional view showing a conventional fan coil unit An exploded perspective view showing a conventional fan coil unit

Explanation of symbols

5 Casing 5a Duct connection (an example of a wind passage opening)
5b Duct connection (an example of a wind passage opening)
6 Fan 7 Coil 8 Drain pan 10 Opening / closing port 11 Groove (an example of a partition plate attaching / detaching portion)
12 Illumination means P Partition plate

Claims (4)

An air conditioner comprising a casing having air passage openings at both ends of the air passage, fans and coils provided side by side along the air passage in the casing, and a drain pan provided below the coil. There,
An opening / closing port that can be freely opened and closed is provided in at least one of a side portion or an upper portion of the casing surrounding wall, and a partition that partitions the air passage in the vicinity of the coil arrangement portion. An air conditioner provided with a partition plate attaching / detaching portion that allows the plate to be attached and detached.   2. The air conditioner according to claim 1, wherein the partition plate attaching / detaching portion is disposed between the coil and the fan and between the wind passage port portion on the coil side and the coil.   The air conditioning apparatus according to claim 1 or 2, wherein the partition plate attaching / detaching portion is formed with the partition plate as a slidable groove portion.   The air conditioner according to any one of claims 1 to 3, wherein a detachable partition plate is provided in the partition plate attaching / detaching portion, and the partition plate includes an illumination unit.

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