Cooling box

Abstract

To provide a cooling box in which water accumulated in a drain pan is easily evaporated.SOLUTION: A cooling box according to one aspect of the present disclosure comprises a compressor, at least one pipe connected to the compressor, and a drain pan. At least a portion of the drain pan is installed adjacently to the compressor in a left-right direction. The pipe includes a barrier part. The barrier part is a portion located between the compressor and the drain pan, and not exceeding the height of a peripheral wall of the drain pan. The drain pan comprises a bulging part. The bulging part is a portion bulging closer to the side of the compressor in the left-right direction than an end part of the barrier part on the side of the drain pan in the left-right direction.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present disclosure relates to a refrigerator.

Background Art

[0002] Patent Document 1 describes a refrigerator in which a machine room is provided at the lower rear of a heat-insulating box body, and cold air generated by an evaporator is circulated into the storage compartment. The machine room includes a compressor that compresses a refrigerant, a compressor cooling fan that cools the compressor, a condenser that condenses the refrigerant discharged from the compressor, and an evaporation dish (drain pan) that evaporates defrost water generated by defrosting of the evaporator. A refrigerator is described in which the condenser is arranged above and the evaporation dish is arranged below, and the condenser and the evaporation dish are arranged in parallel in the air passage of the machine room.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] For example, a built-in type small refrigerator installed as part of a structure such as a storage shelf in a kitchen is often installed in a relatively small and deep installation space. Such a built-in type refrigerator may be installed, for example, in a predetermined installation space designed for an embedded oven or a pantry.

[0005] In such a built-in type refrigerator, in order to secure a space such as a storage compartment, usually, the machine room is provided on the back side (rear side) of the installation space. On the bottom of the limited machine room, for example, a drain pan is arranged in parallel with the compressor and is arranged to receive defrost water discharged from the drain holes of the upper drip tray.

[0006] However, in the case of the built-in type of refrigerator as described above, in an installation where the defrost water cannot be discharged to the outside such as a sewer, it is necessary to forcibly evaporate the defrost water in the drain pan and disperse it into the atmosphere outside the installation space. In order to promote the evaporation of the defrost water, the drain pan is usually heated from the inside or outside at a high-temperature part of the refrigeration cycle or the like. However, in a small refrigerator (especially a refrigerator) of the built-in type, since the operating time of the compressor is short, there is a problem that the heating of the drain pan is insufficient and the defrost water accumulated in the drain pan is difficult to evaporate.

[0007] An object of the present disclosure is to provide a refrigerator in which the water accumulated in the drain pan is easily evaporated.

Means for Solving the Problems

[0008] The refrigerator according to one aspect of the present disclosure includes a compressor, at least one pipe connected to the compressor, and a drain pan. At least a part of the drain pan is installed adjacent to the compressor in the left-right direction. The pipe includes a barrier portion. The barrier portion is located between the compressor and the drain pan and does not exceed the height of the peripheral wall of the drain pan. The drain pan has a bulging portion. The bulging portion bulges toward the compressor side in the left-right direction rather than the end portion on the drain pan side in the left-right direction of the barrier portion.

Effects of the Invention

[0009] According to one aspect of the present disclosure, it is possible to provide a refrigerator in which the water accumulated in the drain pan is easily evaporated.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Mode for Carrying Out the Invention

[0011] Hereinafter, each embodiment of the present disclosure will be described with reference to the drawings. In the drawings, the same parts are denoted by the same reference numerals.

[0012] <Refrigerator> In the present disclosure, the "refrigerator" means all things having an internal space (storage room) at a temperature lower than the outside air temperature and capable of lowering the temperature of the stored items. The refrigerator may be, for example, a refrigerator or a freezer. The refrigerator may have only one storage room or may have a plurality of storage rooms. When the refrigerator has a plurality of storage rooms, the plurality of storage rooms may include at least two of a refrigerating chamber, a freezing chamber, a vegetable chamber, a chilled chamber, a partial chamber, etc.

[0013] The refrigerator 1 of the present embodiment is a so-called built-in type refrigerator that is attached to a predetermined installation space. The refrigerator 1 can be attached to a predetermined installation space, for example, a part of the space of the storage shelf 9 (installation space for an embedded oven, a closet shelf, a storage rack, etc.) (see FIGS. 1 and 3). The refrigerator may be initially attached to a newly installed kitchen storage shelf, or may be retrofitted to a structure such as an existing kitchen storage shelf.

[0014] For example, when installing a refrigerator in the installation space inside an existing kitchen storage shelf, the installation space often includes a space for providing a drain pipe or the like on its back side, and there is sufficient space on the back side of the installation space. In a refrigerator attached to such an installation space, by providing the machine room on the back side, the sizes in the up, down, left, and right directions of the storage room or the like can be maximized, and more space for the storage room can be taken on the front side.

[0015] First, mainly with reference to FIGS. 1 to 4, the overall configuration of the refrigerator 1 according to the first embodiment will be described. The longitudinal sectional view shown in FIG. 3 is a sectional view taken along the III-III section in the front view shown small in the lower right of FIG. 3.

[0016] In this specification, the surface provided with the door is referred to as the front (or front face) of the refrigerator 1. And, with the front face as a reference, based on the normal arrangement of the refrigerator 1, each face of the refrigerator 1 is referred to as the back, top, bottom, and side faces. Note that the directions of the respective components constituting the refrigerator 1 may also be expressed based on this arrangement of the refrigerator 1.

[0017] The structural frame of the refrigerator 1 is mainly composed of a heat insulation box body 8. A storage room 10 (such as a refrigerating chamber, a freezing chamber, etc.), which is the storage space of the refrigerator 1, is formed by this heat insulation box body 8.

[0018] A machine room 13 is formed at the lower part on the back side of the storage room 10. In the machine room 13, for example, a refrigeration cycle including a compressor 3, a fan 7 flows the air in the machine room 13 upward along the back of the heat insulation box body 8, flows it forward along the top surface of the heat insulation box body 8, and discharges it from the front side of the heat insulation box body 8. A control circuit section 19 or the like may be provided on the upper surface side or the back side of the storage room 10.

[0019] The refrigeration cycle mainly consists of a compressor 3, a condenser, an expander, an evaporator 2 (cooler), etc. These components are connected via refrigerant pipes through which the refrigerant flows. In this embodiment, the evaporator 2 is arranged above the compressor 3 (see Fig. 8).

[0020] The cooler is not particularly limited. For example, a drawer-type cooler can be mentioned. For example, the cooler attached to the storage shelf 9 has a counter formed by the upper surface of the storage shelf 9, which is close to the height of a person's waist. Therefore, a drawer-type cooler for taking items in and out from above is more convenient to use. Mainly referring to Fig. 2, the drawer-type cooler 1 includes, for example, a cooler body 11 having a storage space 11a with an opening, and a drawer 12 that is supported in the storage space 11a of the cooler body 11 so as to be freely pulled in and out. In this case, the storage room 10 is formed by closing the opening of the storage space 11a of the cooler body 11 with the door 121 of the drawer 12. Note that a gripping portion 121a for operating the drawer 12 to be pulled in and out may be provided at the upper part of the front surface of the door 121 of the drawer 12. An operation portion 11b for operating the cooler 1 may be provided. The drawer 12 includes a front door 121, a receiving frame 122 (integrated with the rail mechanism 124) fixed to the door 121, and a tray 123 supported by the receiving frame 122. The drawer 12 is supported by a rail mechanism 124 provided between the receiving frame 122 and the inner wall of the storage room 10 (cooler body 11) so as to be freely pulled in and out in the front-rear direction. The drawer 12 may be designed to be pulled out largely, for example, by a two-stage rail mechanism, so as to be easily visible from the user's view from above.

[0021] Next, referring to Figs. 5 and 6, the cooler 1 of this embodiment includes a compressor 3, at least one pipe 31, 32 connected to the compressor 3, and a drain pan 4. The drain pan 4 is installed at the same height position (in parallel) as the compressor 3.

[0022] Referring to FIG. 7, the pipes 31 and 32 include barrier portions 31a and 32a. Here, the barrier portion is a portion that is located between the compressor 3 and the drain pan 4 (in the left - right direction A) and does not exceed the height of the peripheral wall of the drain pan 4. That is, the barrier portion is a portion that can interfere with the drain pan 4 when, for example, the drain pan 4 is inserted into the machine room 13 in the horizontal direction, particularly in the front - rear direction B.

[0023] Note that the barrier portion is a portion of the pipe on the drain - pan 4 side of the compressor 3, but pipes arranged inside the drain pan 4 (such as a hot pipe for promoting evaporation) are not included in the barrier portion. Among the refrigerant pipes constituting the refrigeration cycle, the heat - radiation - side pipes (such as the discharge - side pipe 32 connected to the compressor 3) including the condenser from the compressor 3 to the expander can be used to promote the evaporation of the defrosting water in the drain pan 4. Therefore, by arranging the heat - radiation - side pipes inside or near the drain pan 4, the water accumulated in the drain pan 4 can be made easier to evaporate. Thus, in some cases, the heat - radiation - side pipe (hot pipe 33) may be installed inside the drain pan 4. Even in this case, as will be described later, in the installation process of the drain pan 4, if the hot pipe 33 is temporarily lifted above the side wall of the drain pan 4, the drain pan 4 can be inserted, and the hot pipe 33 can be prevented from becoming an obstacle to the installation of the drain pan 4.

[0024] (Drain pan) In the refrigerator of this embodiment, the drain pan 4 has bulging portions 41 and 42. The bulging portions 41 and 42 are portions that bulge toward the compressor 3 side in the left - right direction A rather than the end portions 31b and 32b on the drain - pan 4 side of the barrier portions 31a and 32a of the pipes 31 and 32 in the left - right direction A in a top view (plan view seen from above the refrigerator: refer to FIG. 7). That is, in a top view, at least a part of the bulging portions 41 and 42 and at least a part of the barrier portions 31a and 32a of the pipes 31 and 32 overlap in the front - rear direction B. In other words, in a rear view, at least a part of the bulging portions 41 and 42 and at least a part of the barrier portions 31a and 32a of the pipes 31 and 32 overlap.

[0025] In FIG. 7, the bulging portions 41 and 42 bulge toward the compressor 3 side in the left - right direction A more than the end portions 32b (dotted line L1) on the drain pan 4 side in the left - right direction A of the barrier portions 32a, and are portions (first portions 41a, 42a, second portions 41b, 42b, and tip portions 41c, 42c) that bulge toward the compressor 3 side in the left - right direction A.

[0026] Note that the bulging portions 41 and 42 are also portions that bulge toward the compressor 3 side in the left - right direction A more than the end portions 31b (dotted line L2) on the drain pan 4 side in the left - right direction A of the barrier portion 31a. As shown in the figure, when the height of the peripheral wall 43 of the drain pan 4 is higher than the lower end of the pipe 32 (and pipe 31), the bulging portion only needs to be a portion that bulges toward the compressor 3 side more than the end portion 32b (dotted line L1), and does not necessarily need to bulge all the way to the compressor 3 side more than the end portion 31b (dotted line L2).

[0027] Since the drain pan 4 has the bulging portions 41 and 42 (in other words, the end portions (side walls 43) on the compressor 3 side of the drain pan 4 are recessed toward the inner side in the horizontal direction of the drain pan (the right side in FIG. 7) at locations other than the bulging portions 41 and 42), it is possible to increase the evaporation area of the drain pan 4 (the area where the water surface of the water accumulated in the drain pan 4 contacts the air) while avoiding the barrier portions 31a and 32a. When the temperature, ventilation above the water surface, and temperature - humidity conditions are the same, the evaporation amount is proportional to the water surface area. Thereby, it is possible to make the water accumulated in the drain pan 4 evaporate more easily.

[0028] Also, in the case of a built - in type refrigerator where the drain pan 4 is located deep inside the installation space and it is difficult for the user to check the drain pan 4, there is a possibility that the user may not notice even if the drain pan 4 overflows. For this reason, it is desirable to increase the volume (upper limit of water storage capacity) of the drain pan 4 to reduce the possibility of overflow. From the viewpoint of increasing the volume of the drain pan 4, the peripheral wall 43 of the drain pan 4 is preferably high. However, as the peripheral wall 43 of the drain pan 4 becomes higher, the number of pipes (barrier portions) that hinder the installation of the drain pan 4 increases, and it becomes difficult to increase the evaporation area of the drain pan. In this embodiment, by making the peripheral wall 43 of the drain pan 4 higher than the heights of the barrier portions 31a and 32a of the pipes 31 and 32 of the compressor 3, it is possible to increase the volume of the drain pan 4 and, at the same time, increase the evaporation area of the drain pan 4 by the bulging portions 41 and 42.

[0029] In the refrigerator shown in FIG. 7 and the like, the drain pan 4 has a bulging portion 41 on the front side (front surface side: the door side of the refrigerator) of the barrier portions 31a and 32a and a bulging portion 42 on the rear side (rear surface side). In this way, it is preferable that the bulging portions 41 and 42 exist on both sides in the front-rear direction B of the barrier portions 31a and 32a. In this case, since the evaporation area of the drain pan 4 (the area where the water accumulated in the drain pan 4 contacts the air) can be made larger than the case where there is a bulging portion on only one of the front side or the rear side, the water accumulated in the drain pan evaporates more easily. Moreover, the dimensions of the maximum long side and the maximum short side of the drain pan 4 viewed from directly above do not change significantly. That is, when the vertical direction of the drain pan 4 is simply set as the movable direction of the molding die, it is also possible to suppress the investment amount for changing the die size.

[0030] The height of the peripheral wall 43 (see FIG. 6) of the drain pan 4 is preferably higher than the lower end of the connection portion between the compressor 3 and the pipes 31 and 32. Note that the height of the peripheral wall 43 of the drain pan 4 is preferably constant. When the height of the peripheral wall 43 is not constant, the height of the portion of the peripheral wall 43 closest to the pipes 31 and 32 is preferably higher than the lower end of the connection portion between the compressor 3 and the pipes 31 and 32.

[0031] In the compressor 3 installed in the machine room 13 of the built-in type refrigerator 1, the pipes 31 and 32 often extend in the left-right direction A of the refrigerator 1 from the compressor 3. This is because piping the compressor 3 vertically would increase the machine room space. For this reason, particularly when the height of the peripheral wall 43 of the drain pan 4 is higher than the lower end of the connection portion between the compressor 3 and the pipes 31 and 32, the portions (barrier portions 31a and 32a) of the pipes 31 and 32 extending from the compressor 3 toward the drain pan 4 in the left-right direction A all become obstacles to the installation of the drain pan 4, making it difficult to increase the evaporation area of the drain pan. Align the directions of the barrier portions 31a and 32a (the directions of the plurality of barrier portions are unified in the left - right direction), and by providing the bulging portions 41 and 42 while ensuring the movement of the drain pan 4 in the A direction, the effect of this embodiment, which can increase the evaporation area while increasing the volume of the drain pan 4, is particularly useful in such cases.

[0032] Also, it is preferable that the bulging portion 41 located at least on the front side of the barrier portions 31a and 32a bulges further to the compressor 3 side in the left - right direction than the end portion 3a on the drain pan 4 side of the compressor 3 in the left - right direction A. That is, as shown in FIG. 7, it is preferable that the bulging portion 41 has a tip portion 41c which is a portion on the compressor 3 side from the end portion 3a (dotted line L3). In other words, in a top view, it is preferable that at least a part of the bulging portion 41 located in front of the barrier portions 31a and 32a and at least a part of the compressor 3 overlap in the front - rear direction. Or, in a rear view, it is preferable that at least a part of the bulging portion 41 located in front of the barrier portions 31a and 32a and at least a part of the compressor 3 overlap. In this case, in order to increase the total water storage capacity of the drain pan 4, it is not necessary to provide a region surrounded by a high inner wall partially in the drain pan 4, and the defrosting water can spread widely in the drain pan 4, so the evaporation area can be made even larger. When inserting the drain pan from the back side of the refrigerator as in the conventional case, since the compressor 3 becomes an obstacle, the tip portion 41c of the bulging portion 41 cannot be provided. According to the refrigerator assembly method including the step of inserting the drain pan 4 from the side (left - right direction A) of the refrigerator where the compressor 3 is installed, which will be described later, it becomes possible to provide the tip portion 41c of the bulging portion 41.

[0033] Furthermore, it is also preferable that the bulging portion 42 located at the rear side of the barrier portions 31a and 32a bulges further to the compressor 3 side in the left - right direction than the end portion 3a on the drain pan 4 side of the compressor 3 in the left - right direction A (that is, as shown in FIG. 7, the bulging portion 42 also has a tip portion 42c). In this case, in order to increase the total water storage capacity of the drain pan 4, it is not necessary to provide a region in the drain pan 4 that is partially surrounded by a high inner wall, and since the defrost water spreads widely in the drain pan 4, the evaporation area can be further increased.

[0034] (Drip tray) As shown in FIG. 8, the refrigerator 1 of the present embodiment may further include a drip tray (water receiving tray) having a drain hole for flowing defrost water to the drain pan 4 above the drain pan 4.

[0035] Note that the drip tray 6 is disposed, for example, below the evaporator 2. The drip tray 6 has a discharge hole 61 at its deepest part (see FIGS. 8 and 9). By the drip tray 6, when the frost and ice adhering to the evaporator 2 melt, the falling water and ice pieces can be collected at the discharge hole 61 and discharged (to the drain pan 4 or the like).

[0036] Here, the drain hole 61 of the drip tray 6 is preferably located above the bulging portions 41 and 42 of the drain pan 4.

[0037] In the drip tray 6, the discharge hole 61 for discharging water and ice pieces is preferably disposed at a position close to the center in the left - right direction of the refrigerator. In order to smoothly flow water to the discharge hole 61, it is necessary to set the inclination angle of the upper surface of the drip tray 6 from the peripheral edge portion of the drip tray 6 to the discharge hole 61 to a predetermined value or more. Here, the longer the longest distance from the peripheral edge portion of the drip tray 6 to the discharge hole 61, the lower the position of the discharge hole 61 needs to be in order to keep the above inclination angle at a predetermined value or more, and it becomes necessary to increase the overall height of the drip tray 6. When the discharge hole 61 is located away from the center in the left - right direction (the longitudinal direction of the drip tray 6, i.e., the left - right direction of the refrigerator), the longest distance from the peripheral edge portion of the drip tray 6 to the discharge hole 61 becomes long, so it becomes necessary to increase the overall height of the drip tray 6. Therefore, the discharge hole 61 is preferably provided at a position close to the center in the left - right direction of the refrigerator.

[0038] Here, the drain holes 61 of the drip tray need to be arranged such that the drain pan 4 is positioned directly below the drain holes 61. In this embodiment, since the drain pan 4 is provided with the bulging portions 41 and 42 and thus extended to the central side in the left - right direction, it is possible to provide the drain holes 61 of the drip tray at a position closer to the center in the left - right direction.

[0039] (Method of assembling a refrigerator) The present disclosure also relates to a method of assembling a refrigerator including a compressor 3, at least one pipe 31, 32 connected to the compressor 3, and a drain pan 4. Referring to FIG. 10, the assembling method includes a step of inserting at least a part of the drain pan 4 from the side (left - right direction A) of the refrigerator where the compressor 3 is installed and installing it at the same height position as the compressor 3 (drain pan installation step). In the case of a general refrigerator, the side surface is a part that comes into contact with the user's eyes and hands. For the purpose of maintaining aesthetics and protecting the user from high - temperature parts such as heat - dissipation pipes and rotating parts such as fans, the side surface of the machine room needs to be covered with a protective member. The simplest configuration is to extend the outer shell sheet metal on the side surface to the side surface of the machine room. However, when it is designed specifically for built - in use, since the above - mentioned protective member is not required, the above - mentioned steps are easier to perform. Note that the insertion direction of the drain pan 4 preferably coincides with the direction in which the barrier portions 31a, 32a of the pipes 31, 32 of the compressor 3 extend.

[0040] In the drain pan installation step, by inserting the drain pan 4 from the side of the refrigerator 1 in the direction of the arrow in FIG. 10, the bulging portions 41, 42 of the drain pan 4 can be inserted to a deep position in the left - right direction A of the refrigerator 1 without being obstructed by the barrier portions 31a, 32a of the pipes 31, 32 of the compressor 3 (extending in the left - right direction A of the refrigerator 1). On the other hand, when inserting the drain pan 4 from the back side of the refrigerator 1 as in the conventional case, since it is impossible to avoid the barrier portions 31a and 32a, it was impossible to provide the bulging portion 41 on the drain pan 4. That is, in FIG. 7, it was impossible to install the drain pan 4 provided with the bulging portion 41 located on the front side of the barrier portions 31a and 32a. For this reason, it was difficult to increase the total water storage amount and the evaporation area of the drain pan 4. In the present embodiment and process, it is possible to install the drain pan 4 provided with the bulging portion 41 located on the front side of the barrier portions 31a and 32a. As shown in FIG. 7, the bulging portion 41 is arranged close to the storage space 11a and also adjacent to the compressor 3. Therefore, by storing water in the bulging portion 41, it is possible to suppress the transfer of the exhaust heat from the compressor 3 to the storage space 11a, and since it is easy to receive the exhaust heat from the compressor 3, the defrost water stored in the drain pan 4 can be efficiently evaporated. Further, the position where the bulging portion 41 is arranged is, as described above, a space sandwiched between the back surface of the heat insulating box body 8 forming the storage space 11a and the compressor 3, and since it is a space that is difficult to reach, it is a space that is not easily used for arranging structures such as the pipes 31 and 32. According to the present embodiment and process, this space can be effectively utilized, and an excellent effect of being able to appropriately process the exhaust heat from the compressor 3 can be achieved.

[0041] Note that usually, since there are portions that require joining by welding on the compressor 3, the bottom plate, etc., resin parts that are vulnerable to heat such as the drain pan are installed after the assembly of the compressor 3, etc. However, in the above assembly method, parts such as the angle 14 (reinforcing metal fitting) that hinder the insertion of the drain pan 4 from the side are not assembled before the installation of the drain pan 4, but are assembled after the installation of the drain pan 4 (see FIGS. 5 and 10).

[0042] Further, at least a part of the hot pipe 33 is composed of a deformable member around the drain pan 4. In the drain pan installation process, with the hot pipe 33 lifted above the side wall of the drain pan 4, the drain pan 4 is inserted. After the installation of the drain pan 4, the hot pipe 33 is installed inside the drain pan 4. Note that the hot pipe 33 shown in FIG. 10 shows the arrangement after being installed inside the drain pan 4.

[0043] The embodiments disclosed this time should be considered as illustrative in all respects and not restrictive. The scope of the present disclosure is indicated by the scope of claims rather than the above description, and it is intended that all modifications within the meaning and scope equivalent to the scope of claims be included. Also, the configurations obtained by combining the configurations of different embodiments described in this specification with each other are also included in the scope of the present disclosure.

Explanation of Reference Numerals

[0044] 1 Refrigerator 3 Compressor 3a End 31, 32 Pipes 31a, 32a Barrier Parts 31b, 32b Ends 4 Drain Pan 41 Bulging Part (front side) 42 Bulging Part (rear side) 6 Drip Tray 61 Drain Hole A Left - Right Direction B Front - Rear Direction

Claims

1. The system includes a compressor, at least one pipe connected to the compressor, and a drain pan. At least a portion of the drain pan is disposed adjacent to the compressor in the left-right direction, The piping includes a barrier portion, the barrier portion being located between the compressor and the drain pan and not exceeding a height of a peripheral wall of the drain pan, The drain pan has a bulging portion, and the bulging portion is a portion that bulges toward the compressor in the left-right direction more than an end portion of the barrier portion on the drain pan side in the left-right direction. Refrigerator.

2. The refrigerator according to claim 1 , wherein the bulging portion is present on both front and rear sides of the barrier portion.

3. The refrigerator according to claim 1 , wherein a height of a peripheral wall of the drain pan is higher than a lower end of a connection portion between the compressor and the piping.

4. The refrigerator according to claim 1 , wherein the bulging portion located at least in front of the barrier portion bulges out further toward the compressor in the left-right direction than the end portion on the drain pan side of the compressor in the left-right direction.

5. A drip tray is provided above the drain pan and has a drain hole for allowing defrost water to flow into the drain pan. The refrigerator according to claim 1 , wherein the drain hole is located above the bulge.

6. A method for assembling a refrigerator comprising a compressor, at least one pipe connected to the compressor, and a drain pan, comprising: an assembly method including a step of inserting the drain pan in a left-right direction from a side of the cooling cabinet in which the compressor is installed, and installing the drain pan in a position where at least a portion of the drain pan overlaps with at least a portion of the piping in the front-to-rear direction.

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