JP3393319B2 - Refrigeration equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigeration apparatus such as a refrigerated showcase, a refrigerator, a freezer, a refrigerated storage, and more particularly to a drainage structure thereof. 2. Description of the Related Art In a conventional refrigeration / refrigeration case, as exemplified in Japanese Utility Model Publication No. 2-21749, a heater is used to evaporate defrost water stored in a concave portion on the upper surface of a drain tank. The water overflowing from the recess is received by the bottom of the tank and discharged from the drain port, but when the tank is pulled out to clean the tank, the water flows into the recess. Since it is necessary to lower the tank so as not to interfere with the arranged heater, if a relatively large amount of defrost water is stored in the recess, such as immediately after the defrost of the freezing / refrigeration case, this defrost water is discharged. There were inconveniences such as the floor being easily spilled from the recess. [0003] An object of the present invention is to make it possible to easily prevent the storage drain from spilling out of a drain tank when the drain tank is taken out of a unit room in a refrigerator. is there. [0004] Therefore, a refrigeration apparatus according to the present invention is a drawer-type drain tank which is housed in a unit room and is opened upward to guide the drain. A support mechanism that guides diagonally downward,
One end is connected to a heater disposed in the drain tank and a drain port provided below the drain tank, and the other end is connected to the heater.
A part or an intermediate part between the one end and the other end has a drain pipe detachably connected to another member in the unit chamber, and the other end or the intermediate part and the other part
It is configured such that the drain tank can be pulled out by disconnecting the drain tank from the member . [0005] That is, a drain such as defrost water is guided from an upper opening to a draw-out type drain tank housed in the unit room of the refrigeration unit and supported by the support mechanism, and is disposed in the drain tank. While the drain is heated by the heater, the drain tank is guided obliquely downward by a support mechanism so as not to interfere with the heater when the drain tank is pulled out of the unit room for cleaning or the like. It has become. However, when pulling out the drain tank forward from the unit room, the other end of the drain pipe with one end connected to the drain port below the drain tank
Alternatively, since it is necessary to disconnect the intermediate portion between the one end and the other end and other members in the unit chamber, a relatively large amount of drain is stored in the drain tank, for example, immediately after the end of defrosting of the refrigerator. Even if it is, the drain tank can be reliably prevented from being carelessly pulled out, and if necessary, the other end of the drain pipe
Or disconnect the middle part from other members in the unit room.
This makes it possible to discharge the drain stored in the drain tank through a drain pipe. Hereinafter, embodiments of the present invention shown in the drawings will be described.
The same parts will be described with the same reference numerals. 1 to 4, a refrigerated showcase 1 is provided with a sliding door type door 3 on the front surface of a refrigerated compartment 2 of the refrigerated showcase 1.
Refrigerator 5 and drain tank 6
In addition, an electric box 7 is installed, the refrigeration apparatus 5 and the drain tank 6 are covered with a duct 8 and separated from the electric box 7, and the duct 8 is fixed on a unit base 9 with screws 9a or the like. The refrigerating apparatus 5 comprises a refrigerant compressor 10, a condenser 11, a blower 12, a refrigerant pipe 13 and the like arranged on a unit base 9, and has a cover 14 attached to the front of the unit chamber 4 so as to be openable and closable. Has an outside air inlet 15 formed at a position facing the condenser 11. A bent portion 16 is formed at the front end of the drain tank 6, an inclined surface 17 is formed at the rear end, and a headed screw 18 is screwed into the upper surface of the bent portion 16. 16, a small gap is formed between the upper surface and
A drain port 19 is provided below the front surface of the drain tank 6. On the other hand, at the rear in the duct 8, a bent plate 20 is fixed at both ends to the inner surface of the duct 8 and the unit base 9 and extends horizontally, and the rear bottom of the drain tank 6 is placed on the bent plate 20. While being mounted, the shaft of the headed screw 18 fits into the notch 22 formed in the shelf 21 of the duct 8 and the drain tank 6
A drain such as defrost water in the upper refrigerator compartment 2 is guided and stored in a drain tank 6 which is supported substantially horizontally and held substantially horizontally. A refrigerant pipe 13 extending from the refrigerant compressor 10 meanders near the bottom of the drain tank 6 to form a heater 23, and furthermore, a condenser 11 and an evaporator (not shown) above the refrigerating chamber 2 in order. And a refrigerant path returning to the refrigerant compressor 10 through the above, and a blower 25 is supported on the support column 24 on the unit base 9 so as to face the inside of the drain tank 6. Further, as shown in FIGS. 6 and 7, one end of a transparent or translucent flexible drain pipe 26 is connected to the drain port 19 of the drain tank 6, while a purse lock 27 is connected. Of the purse lock 2 is elastically inserted into a small hole (not shown) on the unit base 9.
7 is fixed, the middle part of the drain pipe 26 is removably mounted on the unit base 9 by the left and right flexible arms 29 of the perspective lock 27, and the perspective lock 30 has the same structure as the perspective lock 27. Are elastically inserted into small holes (not shown) on the front surface of the duct 8 to fix the perspective lock 30. The left and right flexible arms of the perspective lock 30 allow the other end of the drain pipe 26 to be detachably attached. As a result, the other end of the drain pipe 26 extends above the drain tank 6, and a cap 31 is attached to the tip of the drain pipe 26 so as to be openable and closable. In the above apparatus, the refrigerant whose pressure has been raised by the operation of the refrigerant compressor 10 is first guided to the heater 23 by the refrigerant pipe 13 to heat and evaporate the drain stored in the drain tank 6, and then the condenser Blower 1 sent to 11
The air cooled by the outside air taken in from the suction port 15 of the cover 14 by the evaporator 2 and circulated to the refrigerant compressor 10 by the evaporator and cooled by the refrigerant in the condenser 11 Flows through the duct 8 without diffusing into the entire unit room 4 and is discharged out of the machine from an outlet (not shown) on the back. At this time, the electrical box 7 is separated from the warm air by the duct 8, There is an advantage that the temperature rise is reliably suppressed. Further, the warm air is blown into the drain tank 6 by the blower 25 to actively heat and evaporate the drain stored in the drain tank 6. The evaporation performance of the tank 6 can be greatly increased, and therefore, it is not necessary to arrange the drain tank 6 behind the condenser 11, so that the refrigerated showcase 1 can be easily made thin and furthermore, Can drain the drain in the drain tank 6 continuously by the operation of the blower 25 even while the operation of the refrigerant compressor 10 is stopped. Further, when taking out the drain tank 6 for cleaning the drain tank 6, etc., the drain tank 6 is slightly pulled out to the front, and the head screw 18 on the upper surface of the bent portion 16 and the notch 22 of the duct shelf 21 are cut out. Is disengaged, the rear end inclined surface 17 is slid obliquely downward and forward along the inclined surface of the bent plate 20, and is lowered onto the unit base 9 as shown in FIG. If the purse locks 27 and 30 or at least the purse locks 27 disposed at least in the vicinity of the drain tank 6 are loosened and the drain pipe 26 is not removed from the unit base 9, the drains are removed from the heater 23. Since the tank 6 cannot be pulled out from the duct 8, the drain in the drain tank 6 is stored without being completely evaporated as immediately after the defrost of the refrigerator compartment 2 is completed. Even if the drain tank 6 is inadvertently pulled out, the drain in the drain tank 6 can be easily prevented from being spilled on the floor, and if necessary, the cap 31 at the tip of the drain pipe 26 can be removed. By opening, the drain in the drain tank 6 is drained from the drain pipe 26.
The drain in the drain tank 6 can be easily prevented from being spilled on the floor from this surface as well, which is practically very convenient. Next, in the embodiment shown in FIGS. 8 and 9, one end of a transparent or translucent flexible drainage pipe 26 is connected to the drainage port 19 of the drain tank 6, while The middle part of the drainage pipe 26 is removably attached by a purse lock 27 fixed to the duct 14, and the other end of the drainage pipe 26 is detachably attached by a perspective lock 30 fixed to the front surface of the duct 8. A cap 33 is attached to the end of a drain pipe 26 extending upward along a vertically long window 32 formed above the drain tank 6 so as to be openable and closable. Drainage pipe 2
6 is small, but small enough to allow water to pass through.
4 are provided, and a scale 3 is provided on the side of the window 32.
5 is marked. In this embodiment, when the drain in the drain tank 6 is stored without being completely evaporated, the drain water level in the drain pipe 26 connected to the drain port 19 is read from the window 32 of the cover 14. The drain water level in the drain tank 6 can be known from the outside. Therefore, caution is required when the drain tank 6 is pulled out from the duct 8 to easily prevent the drain in the drain tank 6 from spilling on the floor. can do. In addition, when the drain in the drain tank 6 is likely to overflow due to some cause, such as the drain in the drain tank 6 being relatively difficult to evaporate in the rainy season, the drain water level is set to the cover 1.
4 can be easily read from the outside by the scale 35 marked on the side of the window 32, so that the drain tank 6 is not pulled out of the duct 8 without any trouble.
The drain inside can be discharged to the outside of the machine by the drain pipe 26, and the floor can be easily prevented from being contaminated by the drain overflowing from the drain tank 6. Although the above embodiment relates to a refrigerated showcase, it is needless to say that the embodiment can be similarly applied to other refrigeration devices such as a refrigerator, a freezer, and a cold storage. In the refrigerating apparatus according to the present invention, when the drain tank is pulled out of the unit chamber forward for cleaning or the like, one end is formed at a drain port below the drain tank. It is necessary to disconnect the other end or middle part of the connected drain pipe from other members in the unit chamber, so even if drain is stored in the drain tank, prepare the drain tank To prevent it from being pulled out,
If necessary, connect the other end or middle
Since the drain in the drain tank can be discharged by a drain pipe by disconnecting the connection with other members in the knit chamber, it is possible to easily prevent the drain in the drain tank from spilling on the floor. Very practical in practice.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partially broken front view of an embodiment of the present invention. FIG. 2 is a top view of a main part of the embodiment. FIG. 3 is an enlarged perspective view of a main part of the embodiment. FIG. 4 is a schematic vertical sectional view of a main part of the embodiment. FIG. 5 is an operation explanatory view of the embodiment. FIG. 6 is an enlarged perspective view of a part of the main part of the above embodiment, which is partially broken. FIG. 7 is a partially enlarged side view of the embodiment. FIG. 8 is a partially cutaway perspective view of a main part according to another embodiment of the present invention. FIG. 9 is a partially enlarged side view of FIG. 8; [Description of Signs] 1 Refrigerated showcase 4 Unit room 5 Refrigerator 6 Drain tank 8 Duct 13 Refrigerant pipe 14 Cover 19 Drain port 20 Bent plate 23 Heater 25 Blower 26 Drain pipe 27 Perth lock 30 Perth lock 31 Cap 32 Window 33 Cap 35 scale

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F25D 21/14

Claims (1)

(57) [Claims 1] A draw-out type drain tank which is housed in a unit room and is opened upward to guide a drain, a support mechanism for supporting the drain tank and guiding it obliquely downward and forward.
One end is connected to a heater disposed in the drain tank and a drain port provided below the drain tank, and the other end is connected to the heater.
A part or an intermediate part between the one end and the other end has a drain pipe detachably connected to another member in the unit chamber, and the other end or the intermediate part and the other part
A refrigeration apparatus configured to be able to pull out the drain tank forward by disconnecting the drain tank from a member .