JP2005265332A - Air-conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air-conditioner designed both so as to be hung on the ceiling and to be laid on the floor or mounted on the wall, capable of enhancing the working easiness for the maintenance while it can preclude such an inconvenience that the water stagnated in a drain pan drops. <P>SOLUTION: The air-conditioner AC is equipped with a drain pan drawout mechanism capable of being taken out solely without dividing the drain pan, for example structured so that a middle partitioning member 300 to generate partitioning into a blower part 100 and a heat exchange part 200 is split into a first middle partitioning member 310 having the specified length attached to the back face and a second middle partitioning member 320 formed in a single piece with the side bottom surface of a second dew receptacle tray 222 of the drain pan 220. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an air conditioner, and more particularly, to an air conditioner that can be used in any of a ceiling-suspended, floor-mounted, and wall-mounted manner.

2. Description of the Related Art Conventionally, there are air conditioners that can be used in either a suspended state on a ceiling, a suspended state on a floor, or a suspended state on a wall.
As described above, in an air conditioner that can be used in either a ceiling-mounted or floor-mounted or wall-mounted mode, the dew that forms on the heat exchanger during cooling is used in the ceiling-mounted or floor-mounted or wall-mounted mode. The shape of the drain pan is devised so that it can be received in any case.
As such, a technique is known in which a pan that receives dew when used on a ceiling and a pan that receives dew when used on the floor or on a wall are integrally formed, and the drain pan is configured in an approximately L shape. (For example, see Patent Document 1 or 2). Moreover, the device which drains efficiently the water collected in the drain pan formed in the substantially L shape as mentioned above is also known (for example, refer patent document 3).
FIG. 9 is a side sectional view showing a schematic configuration of a conventional ceiling-suspended and floor-mounted / wall-mounted air conditioner 1, wherein (a) is a ceiling-suspended, (b) is a floor-mounted or wall-mounted, The state which uses the said air conditioner 1 is shown.
In the air conditioner 1, a heat exchanger 4 that cools or heats the air sent from the blower 3 is disposed at an inclination, and a drain pan 6 that receives dew that flows down and flows through the heat exchanger 4. Has been placed. The drain pan 6 includes a first dew tray 6a having a substantially U-shaped cross section for receiving the dew when the ceiling is used as shown in FIG. 9 (a), and a floor or wall hanging use as shown in FIG. 9 (b). The second dew receiving tray 6b having a cross section that receives the dew sometimes formed in a substantially U shape is integrally formed, and is configured in a substantially L shape. The second dew tray 6b is provided from the front side to the back side of the heat exchanger 4 as shown in FIG. Therefore, the air blower 3 side end 4a of the heat exchanger 4 is inserted into the recess formed by the first and second dew trays 6a and 6b.
Further, in the conventional air conditioner as described above, since the entire machine base has a long rectangular shape, as shown in FIG. 9B, the rear side of the machine base from the front side cover 8a to secure the strength. A sheet metal partition member 8c extending over the cover 8b is provided, which serves as a partition between the chamber 1a provided with the heat exchanger 4 and the chamber 1b provided with the blower 3.
Furthermore, the conventional drain pan 6 as described above needs to have a heat insulating effect in order to prevent the machine base from dewing under the influence of low-temperature drain water, and is made of a soft material such as polystyrene foam. Therefore, from the viewpoint of reinforcement, the lower surface of the second dew tray 6b shown in FIG. 9B is brought into close contact with the intermediate partition member 8c, and if necessary, they are combined by screws or the like not shown. Thus, the strength of the drain pan 6 is improved.
By the way, the drain pan 6 can be used for various purposes such as cleaning the heat exchanger 4, cleaning the drain pan 6, cleaning the drain ports 7 (7 b, 7 c) for draining dew (water) accumulated in the drain pan 6, or replacing the drain pan 6. This needs to be removed for maintenance. In such a case, according to the conventional technique shown in FIG. 9, the drain pan 6 is pulled out in the direction of the blower 3 indicated by the arrow B in FIG. I can't. If the drain pan 6 is pulled out in the front direction of the air conditioner 1 (indicated by the arrow A), the heat exchanger 4 is placed in the recess formed by the first and second dew trays 6a and 6b as described above. Since the end portion 4a is inserted, the second dew tray 6b and the heat exchanger 4 interfere with each other and cannot be removed, or even if it can be removed, the second dew plate 6c is damaged. There was a problem.
Therefore, conventionally, the drain pan 6 is removed together with the heat exchanger 4. However, in order to remove the heat exchanger 4, it is necessary to remove all the piping and wiring after recovering the refrigerant in the heat exchanger 4 with a pump. In other words, it is necessary to evacuate the piping after injecting all the piping and wiring, and to inject the refrigerant, and these are extremely complicated operations. In addition, since the heat exchanger 4 is heavy, the work of removing it together with the drain pan 6 is dangerous for the operator, particularly when it is suspended from the ceiling.
Further, in the technique described in Patent Document 3 shown in FIG. 9, the drain pan 6 is divided, but in such a structure, when the air conditioner is used in a suspended state, the drain water from the heat exchanger 4 is exposed. There is a possibility of entering the gap between the trays 6a and 6b, and there is a possibility that the water tightness of the drain pan 6 will be defective.
Based on these considerations, there has been a demand for a technology that can be removed independently without dividing the drain pan in a ceiling-suspended and floor-mounted / wall-mounted air conditioner.
JP-A-62-33226 JP-A-1-217138 JP-A-10-185231

  An object of the present invention is to solve the above-mentioned problems of the prior art. Specifically, in a ceiling-suspended and floor-mounted / wall-mounted air conditioner, water accumulated in a drain pan Providing an air conditioner with high maintainability that can be removed independently (apart from the heat exchanger) without dividing the drain pan while preventing the problem of spilling, with a configuration that is as simple and inexpensive as possible. With the goal.

In order to solve the above-described problems, the present invention provides a blower that blows inhaled air, a heat exchange unit that cools or heats the air discharged from the discharge port of the blower, the blower, and the heat An intermediate partition member for partitioning between the heat exchanger and the heat exchanger, and a heat exchanger mounted at an inclination and a drain pan for receiving dew condensed on the heat exchanger are disposed in the heat exchanger. Is a first dew tray that receives dew that flows down from the heat exchanger when the air conditioner is used as a ceiling-suspended type, and that flows down from the heat exchanger when the air conditioner is used as a floor-mounted type or a wall-mounted type. A second dew pan that receives dew and a side wall that forms a side wall of the second dew pan, and the lower end of the heat exchanger when the air conditioner is used as a floor-standing type or a wall-hanging type, The first dew pan, the In the air conditioner housed in the recess formed by the dew pan and the side wall, a drain pan pulling mechanism is provided that allows the drain pan to be pulled out in substantially the same direction as the mounting axial direction of the heat exchanger. It is comprised as an air conditioner characterized by becoming.
With such a configuration, it becomes possible to remove the drain pan alone without removing the heat exchanger, and the maintainability is improved.

The drain pan pull-out mechanism is attached to the inside of the surface which becomes the upper side surface of the air conditioner when the air conditioner is used as a ceiling type, and the side wall when the drain pan is pulled out. Is formed integrally with the second dew pan side bottom surface of the drain pan and is connected to the first partition member when the drain pan is mounted. It is suitable if it is divided into the second partition member.
In addition to being able to pull out the drain pan by such a configuration, the purpose of maintaining the strength of the air conditioner casing of the partition member can be achieved.

  When the air conditioner of the partition member is used as a ceiling type so that the side wall does not interfere with the partition member when the drain pan pulling mechanism pulls out the drain pan, the lower surface of the air conditioner is used. If the end portion on the surface side to be inclined with respect to the other end portion along the pull-out direction of the drain pan, a simpler configuration is preferable.

  When the air conditioner of the partition member is used as a ceiling type so that the side wall does not interfere with the partition member when the drain pan pulling mechanism pulls out the drain pan, the lower surface of the air conditioner is used. It is desirable that the end on the surface side to be able to swing with respect to the other end can achieve the object with the same simple configuration.

  In addition, it is preferable that the side surface of the side wall on the discharge port side also serves as a guide member for directing the air discharged from the blower to the heat exchanger. Even when the side surface of the side wall of the discharge port also serves as such a guide member, that is, when the side wall protrudes greatly from the second dew pan, the drain pan is removed independently according to the present invention. It becomes possible.

  The drain pan may be made of a foamable resin member. Since the partition member is not eliminated, sufficient strength can be ensured even when a member having no strength such as a foamable resin member is used for the drain pan.

As described above, according to the present invention, since it is not necessary to divide the drain pan, it is possible to remove the drain pan separately from the heat exchanger without impairing its watertightness. Thus, the extremely complicated work of removing the piping and wiring and collecting the refrigerant can be omitted. Further, it is not necessary to perform a dangerous work of removing the drain pan together with the heat exchanger, and it is possible to improve both workability and safety. Along with this, maintenance performance such as heat exchanger cleaning and drain pan cleaning is also greatly improved.
In this case, since the configuration for preventing water from spilling from the second dew tray by the side wall is maintained, the reliability is not lowered.
Furthermore, the present invention can be implemented with a simple and inexpensive configuration.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments and examples of the present invention will be described below with reference to the accompanying drawings for understanding of the present invention. It should be noted that the following embodiments and examples are examples embodying the present invention and do not limit the technical scope of the present invention.
1 is a side sectional view of the air conditioner according to the embodiment of the present invention, FIG. 2 is an external view of the air conditioner according to the embodiment of the present invention, and FIG. 3 is an embodiment of the present invention. FIG. 4 is a side sectional view of the air conditioner according to the embodiment, and is an enlarged view of the vicinity of the dividing position of the partition member, and FIG. 4 shows an example of the drain pan used in the air conditioner according to the embodiment of the present invention. FIG. 5 is a diagram showing details of a second partition member formed integrally with a drain pan used in the air conditioner according to the embodiment of the present invention, and FIG. It is a conceptual diagram which shows the operation | work which draws out and removes a drain pan from the air conditioner which concerns on the form.

First, a schematic configuration of the air conditioner AC according to the embodiment of the present invention will be described with reference to a side sectional view of FIG. 1 and an external view of FIG.
In order to avoid confusion, the entire surface of the present specification, regardless of whether it is suspended from the ceiling, or placed on the floor or on the wall, is shown in FIG. The surface shown in FIG. 2B is the back surface of the air conditioner AC, the C surface (that is, the surface shown in FIG. 2C) is the top surface of the air conditioner AC, and the D surface (that is, FIG. 2D). ) Is referred to as the front surface of the air conditioner AC, and the E surface (that is, the surface illustrated in FIG. 2 (e)) is referred to as the side surface of the air conditioner AC. The suspension / floor / wall-mounted air conditioner AC includes a blower unit 100 including a blower 130 that discharges air sucked from a suction port 110 formed by a grill 101 and a filter 102 from a discharge port 120, and the discharge port 120. Heat exchanger 210 that cools or heats the discharged air, during cooling The heat exchanger 210 includes a drain pan 220 that receives dew that is condensed on the heat exchanger 210, and a heat exchanger 200 that includes an air outlet 230 that blows out the air cooled or heated by the heat exchanger 210. The front side of the heat exchange unit 200 is covered with a front cover 201.
Further, the air blowing unit 100 and the heat exchange unit 200 are partitioned by an intermediate partition member 300. The partition member 300 not only partitions the air blowing unit 100 and the heat exchanging unit 200 as described above, but also maintains the strength of the air conditioner AC casing, or various devices and parts such as the air blower 130 are fixed. Therefore, it is comprised with members with high intensity, such as a metal member.
As shown in FIG. 1, the heat exchanger 210 performs the air conditioning of the partition member 300 for the purpose of effectively using the space in the heat exchanging unit 200 and causing the condensed dew to flow down toward the drain pan 220. It is attached inclining from the machine AC front side end to the blower outlet 230 side end of the rear surface of the heat exchange unit 200. In addition, as shown in FIG. 1A, the drain pan 220 receives dew that flows down from the heat exchanger 210 when the air conditioner AC is used with its front side facing downward (suspended from the ceiling). When using the first dew tray 221 and the air conditioner AC in a state where the front surface thereof is horizontal (floor or wall-mounted) as shown in FIG. The second dew tray 222 that receives dew that flows down, and the dew that flows down from the heat exchanger 210 when the air conditioner AC is used in a state where the front surface thereof is horizontally oriented, flow down from the second dew tray 222. The side wall 223 that forms the side wall of the second dew tray 222 is integrally formed in a substantially L shape. Further, a drain outlet 224 is provided to connect a drain pipe (not shown) for discharging dew (water) accumulated in the drain pan 220.
The larger the side wall 223 is, the more water that cannot be completely discharged from the drain outlet 224 can be stored, so that the water collected in the second dew tray 222 can be prevented from spilling to the back side. And the reliability of the air conditioner AC is improved.
Further, as shown in FIG. 1B, the lower end of the heat exchanger 210 when the air conditioner AC is used in a state where the front surface thereof is oriented horizontally (floor or wall hanging) In order to prevent it from flowing down in a direction other than 220, it is accommodated in a recess formed by the first and second dew trays.

The configuration described so far is substantially the same as the configuration of the air conditioner according to the related art. However, in the air conditioner AC according to this embodiment, the partition member 300 is different from the first partition member 310. It is characterized in that it is divided into second partition members 320 (an example of a drain pan drawing mechanism).
Hereinafter, the details of the configuration in which the partition member 300 which is an example of the drain pan drawing mechanism is divided will be described with reference to FIGS. 1 and 3 to 5.
As shown in FIG. 1, the first partition member 310 is attached to the inner back surface of the air conditioner AC. The depth of the first partition member 310 is such that the side wall 223 does not come into contact with the drain pan 220 in the direction indicated by the arrow X in FIG. Specifically, it is the length from the back inner side mounting portion of the first partition member 310 to the point P shown in FIG.
The point P is an angle formed by a straight line L1 connecting this and a point Q that is the most protruding point on the back side of the side wall 223, and a straight line L2 coaxial with the first partition member 310 is θ1. In this case, the heat exchanger 210 when the air conditioner AC is used in a state where the front surface thereof is in the horizontal direction (floor or wall-mounted) is the point S that is the most protruding point on the upper surface side of the side wall 223. Θ2 is an angle formed by a straight line L3 connecting the T point which is the lower end point of the straight line L2 ′ and a straight line L2 ′ parallel to the straight line L2.
θ1 ≧ θ2 (1)
The point Q is determined on the basis of the point Q. This is because the drawing angle θ for pulling out the drain pan 220 so that the S point of the side wall 223 does not interfere with the T point of the heat exchanger 210 is
θ ≧ θ2 (2)
When the drain pan 220 is pulled out at this drawing angle θ, the condition for the point Q of the side wall 223 not to contact the point P of the first partition member 310 is as follows:
θ ≦ θ1 (3)
It is derived from that.

On the other hand, the second partition member 320 is tightly coupled to the lower surface of the second pan tray 222 of the drain pan 220 shown in FIG.
FIG. 4 is a five-side view showing the configuration of the drain pan 220, where (a) is a view seen from the top when mounted on the air conditioner AC, and (b) and (d) are views seen from the side, (E) is the figure seen from the bottom face of the 2nd dew tray 222 side.
As described above, the drain pan 220 is made of a foamable resin member using foamed polystyrene as an example. This is due to characteristics such as high heat insulation, low cost, and a lightweight drain pan 220. Therefore, when the first partition member 310 is set to the depth length from the inner side of the back surface of the air conditioner AC to the point P, the strength of the air conditioner AC casing is lowered as it is. Therefore, the second partition member 320 made of a member having strength such as metal is integrally coupled to the bottom surface of the drain pan 220 on the second dew receiving tray 222 side, thereby preventing a decrease in strength. .
On the bottom surface of the drain pan 220 shown in FIG. 4 (e) on the second dew tray 222 side, metal fittings M are inserted at a plurality of locations (in this example, three locations M1, M2, and M3). A female screw forming pilot hole is provided at the center of the metal fitting M so as to be tightened with a tapping screw or the like, but a female screw may be formed in advance. The metal fittings M1, M2, and M3 are respectively positioned and screwed into holes H1, H2, and H3 formed in the second partition member 320 shown in FIG. Is integrally coupled to the bottom surface of the drain pan 220 on the second dew tray 222 side.
The second partition member 320 is connected to the first partition member 310 by screwing or the like when the drain pan 220 is mounted on the air conditioner AC.

Next, the removal operation of the drain pan 220 will be described with reference to FIG. 6 and FIG.
First, the grill 101 of the air conditioner AC is opened, and the front cover 201 is removed. Next, the screw connecting the second partition member 320 and the first partition member 310 is removed.
Finally, if the drain pan 220 is pulled out in the direction indicated by the arrow Y in FIG. 6, that is, the point Q or point S of the drain pan 220 is pulled out in substantially the same direction as the mounting axis of the heat exchanger 210 (the direction indicated by the arrow C). The removal of the drain pan 220 is completed without interfering with the point T of the heat exchanger 210 or the point P of the first partition member 310.

  The above is description about the case where the partition member which is an example of the drain pan drawing mechanism of the air conditioner which concerns on one Embodiment of this invention is divided into two. With such a configuration, only the drain pan 220 can be pulled out and removed without removing the heat exchanger 210. Therefore, the complicated work associated with the removal of the heat exchanger 210 and the heat exchanger 210 together with the drain pan 220 can be removed. Maintenance can be performed without accompanying dangerous work for removal, improving maintainability. In addition, the second partition member 320 and the bottom surface of the drain pan 220 are integrally formed, and the strength of the air conditioner AC housing is not lowered.

In addition, as shown in FIG. 1, the side wall 223 not only prevents the flow of dew accumulated in the second dew tray 222 as described above, but also the G surface which is the side surface on the discharge port 120 side. It is also a feature of the present embodiment that it is configured to serve as a guide member that directs the air discharged from the blower 100 to the heat exchanger 210.
In order for the G surface to also serve as a guide member, it is generally necessary that the side wall 223 protrudes greatly toward the back side of the heat exchanger 210. According to the configuration of the present invention, the G surface is a guide member. Even in the case of serving as both, the drain pan 220 can be removed independently without being divided by pulling out the drain pan 220 in the direction substantially the same as the mounting axis direction of the heat exchanger 210.
In addition to the side wall 223, a guide member for directing the air exhausted from the blower unit 100 to the heat exchanger 210 may be provided. Even in such a case, within the scope of the present invention. is there.

As another example of the drain pan drawing mechanism, as shown in FIG. 7, the inner partition member 300 has a front side end portion along the pulling direction of the drain pan 220 with respect to the other end portion (back side end portion). The structure which makes it incline is mentioned.
Here, the inclination starting point (folding point) P of the partition member 300 is determined so that the side wall 223 does not interfere with the partition member 300 when the drain pan 220 is pulled out. The point determined by the formula is good. In this case, the inclination angle θ3 may be set to an angle equal to or larger than the extraction angle θ. However, if the inclination angle θ3 is too large, the surface area of the suction port 110 may be reduced, and the strength of the air conditioner AC casing may be reduced. It is desirable.

As yet another example of the drain pan drawing mechanism, as shown in FIG. 8, there is a configuration in which the divided front partitioning member 320 can swing with respect to the other partitioning member 310.
Here, since the operation center point P for swinging the front partition member 320 is determined so that the side wall 223 does not interfere with the partition member 300 when the drain pan 220 is pulled out, The point determined by equation (1) may be sufficient.

It is side sectional drawing of the air conditioner which concerns on embodiment of this invention, (a) is the case where this air conditioner is used with a ceiling, (b) is using this air conditioner on the floor or wall hanging Each case is shown below. BRIEF DESCRIPTION OF THE DRAWINGS It is an external view of the air conditioner which concerns on embodiment of this invention, (a) is a perspective view, (b) is a rear view, (c) is a top view, (d) is a front view, (e) is a side view FIG. It is a sectional side view of the air conditioner concerning an embodiment of the invention, and is the figure which expanded the division position neighborhood of a partition plate. It is a 5th page figure showing an example of the drain pan used in the air harmony machine concerning an embodiment of the invention. It is a figure which shows the detail of the 2nd partition member formed integrally with the drain pan used in the air conditioner which concerns on embodiment of this invention. It is a conceptual diagram which shows the concept of the operation | work which draws out and removes a drain pan from the air conditioner which concerns on embodiment of this invention. It is a sectional side view which shows schematic structure of the air conditioner which concerns on 1st Example of this invention. It is a sectional side view which shows schematic structure of the air conditioner which concerns on the 2nd Example of this invention. It is side sectional drawing which shows schematic structure of the conventional ceiling-suspended and floor-standing and wall-hanging type air conditioner 1, (a) shows the case where this air conditioner 1 is used with a ceiling, (b) shows this air The case where the conditioner 1 is used on the floor or on the wall is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Air blower part 101 ... Grill 102 ... Filter 110 ... Inlet port 120 ... Outlet port 130 ... Blower 200 ... Heat exchange part 201 ... Front cover 210 ... Heat exchanger 220 ... Drain pan 221 ... First dew pan 222 ... Second dew pan 223 ... Side wall 224 of second dew pan ... Drain outlet 230 ... Air outlet 300 ... Partition members

Claims (6)

A blower that blows inhaled air, a heat exchange part that cools or heats the air discharged from the discharge port of the blower, and an intermediate partition member that partitions the blower and the heat exchange part Prepared,
In the heat exchanging section, a heat exchanger attached at an inclination and a drain pan for receiving dew condensed on the heat exchanger are arranged,
The drain pan includes a first dew pan that receives dew that flows down from the heat exchanger when the air conditioner is used as a ceiling type, and the heat exchanger that is used when the air conditioner is used as a floor-standing type or a wall-hanging type. A second dew tray that receives dew flowing down from the side wall, and a side wall that forms a side wall of the second dew tray,
An air conditioner in which the lower end of the heat exchanger when the air conditioner is used as a floor-standing type or a wall-mounted type is accommodated in a recess formed by the first dew tray, the second dew plate, and the side wall. In the machine
An air conditioner comprising a drain pan pull-out mechanism capable of pulling out the drain pan in substantially the same direction as the mounting axis direction of the heat exchanger. The drain pan pulling mechanism, the partition member;
When the air conditioner is used as a ceiling suspension type, the air conditioner is attached to the inner surface of the upper surface of the air conditioner, and is formed to have a depth that does not contact the side wall when the drain pan is pulled out. A partition member;
A second partition member formed integrally with the second dew pan side bottom surface of the drain pan and connected to the first partition member when the drain pan is mounted;
The air conditioner according to claim 1, wherein the air conditioner is divided into two parts. The drain pan pulling mechanism is
In order to prevent the side wall from interfering with the partition member when the drain pan is pulled out, when the air conditioner of the partition member is used as a ceiling-suspended type, an end on the surface side that becomes the lower surface of the air conditioner The air conditioner according to claim 1, wherein the portion is inclined along the pulling direction of the drain pan with respect to the other end portion. The drain pan pulling mechanism is
In order to prevent the side wall from interfering with the partition member when the drain pan is pulled out, when the air conditioner of the partition member is used as a ceiling-suspended type, an end on the surface side that becomes the lower surface of the air conditioner The air conditioner according to claim 1, wherein the portion is swingable with respect to the other end portion.   The air conditioner according to any one of claims 1 to 4, wherein a side surface of the side wall on the discharge port side also serves as a guide member for directing air discharged from the blower to the heat exchanger.   The air conditioner according to any one of claims 1 to 5, wherein the drain pan is made of a foamable resin member.

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