JPS6313117B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ceiling-suspended cooling device that is suspended from the ceiling wall of a prefabricated refrigerator, for example, and in which the mounting strength of an evaporator, an external plate, and a dew pan is improved by using a plurality of partitions,
The purpose is to prevent deformation in the width direction and to prevent dew from dripping into the refrigerator from the cooling device.

Embodiments of the present invention will be described below with reference to FIGS. 1 to 5. Reference numeral 1 refers to a ceiling-mounted cooling device that is suspended from the ceiling wall of a large refrigerator such as a prefabricated refrigerator, and a plate having an air outlet side as an air outlet. A fin-type evaporator 2, a plurality of axial-flow blowers 3, 3, . 4..., a metal outer plate 5 serving as the outer cover of the device, and a metal dew pan 6 disposed directly below the evaporator, and cools the inside of the refrigerator. As shown in FIG. 4, the evaporator has large and small intervals L,
A plurality of aluminum plate-like fins 7, 7, etc. are arranged in a row with a width of 1, and a plurality of aluminum plate-shaped fins 7, 7,... are arranged on both left and right sides of the fins and at appropriate positions between the fins, and the fins are divided into a plurality of equal groups 7A, 7B,... It is composed of a plurality of metal partitions 8, 8... and a plurality of metal refrigerant conduits 9, 9... perpendicular to each of the fins and partitions, and heats the cold air flow from the blowers 3, 3... It is used to lower the temperature to the desired temperature by replacing it. The blower consists of a propeller 3a and an electric motor 3b, which are provided in the same number as the fin groups 7A, 7B, etc., and the propeller is connected to a circular ventilation hole 10 formed in the back wall of the outer plate 5, which serves as an inlet. The electric motor is fixed to the back wall of the outer plate 5 with support members 11, 11. The hanging equipment directly or indirectly suspends and supports the partitions 8, 8... and the dew pan 6, etc.,
Mounting pieces 4a are prepared in the same number as the number of partitions, and have holes 4c and 4d with holes 4c and 4d, which are formed by cutting a portion of the front and rear ends downward and facing and connecting with the front and back sides of the partitions, as shown in FIG. 4b, and insertion holes 4e and 4f for hanging tools such as bolts for fixing the hanging tool itself to the ceiling wall of the refrigerator are formed on the outside of the mounting piece. The partition body has flanges 8a and 8b whose four end faces, front and back, top and bottom, are bent at right angles, and mounting pieces 4a and 8b are provided on both the front and rear flanges.
4b and holes 8c, 8d, 8 for mounting the dew pan 6
e. Furthermore, holes 8f and 8g for mounting the outer surface plate 5 are formed in the rear flange. The outer plate has most of the front surface and the bottom open, and the evaporator 2 is installed in the front opening.
The air outlet sides of the two are adjacent to each other, and together with the dew pan 6, they form a duct. The dew pan accommodates the evaporator and the blower 3, so as to accommodate the lower end of the outer surface plate 5.
3..., and is attached so that it can be opened and closed with a hinge 12 so that maintenance and inspection of the evaporator and blower can be easily performed.

Next, the assembly of the cooling device 1 will be explained. After the upper wall of the outer plate 5 is interposed between the suspended fixtures 4, 4... and the partitions 8, 8... of the evaporator 2, Connect the suspended fixture and the partition, and the partition and the outer plate with bolts 13 and screws 14, etc., connect the dew pan 6 to the lower ends of the partitions 8, 8, etc. with screws 15 and hinge 12, and blowers 3, 3. It is assembled by fixing ... to the outer surface plate 5.

According to the above configuration, the evaporator 2, the outer plate 5, and the dew pan 6 can be supported by the partitions 8, 8, . Because of this, the refrigerant conduits 9, 9... of the evaporator 2 are deflected, and the fins are in an unparallel state due to this deflection. It is possible to prevent the situation where the partitions 8, 8 become wide.
Since the outer surface plate 5 and the dew pan 6 are fixedly attached so as to cover ..., not only does the installation work become easier, but also the mounting strength of the outer surface plate 5 and the dew pan 6 can be improved, and the deflection in the width direction can be prevented. Moreover, it is possible to not only simply prevent deflection but also provide the dew pan 6 with sufficient strength necessary to receive a large amount of frost peeled off from the evaporator 2 during defrosting. Further, blowers 3, 3 are disposed between the partitions to face the fin groups 7A, 7B divided by the partitions 8, 8...
Vibration noise of the outer surface plate 5 generated during the operation of... can be reduced by the partitions 8, 8.... Furthermore, the cold air flow formed by each blower 3, 3... is divided into individual blowers by partitions 8, 8... to prevent the cold air flows from colliding with each other due to the dynamic pressure of each blower. It is possible to eliminate the occurrence of turbulence,
As a result, the pressure of the cold air flow reaching the fin groups 7A, 7B, . . . is equalized, and the heat exchange efficiency of the evaporator 2 can be improved.

In addition, since the lower end of the outer plate 5 is accommodated in the dew pan 6, not only the frost and dew from the evaporator 2 during defrosting operation but also the dew that travels on both the inner and outer surfaces of the outer plate 5 are removed. The dew can be caught by the dew receiving tray 6, and dripping of dew from the cooling device 1 into the refrigerator can be prevented.

In addition, as shown in FIG. 6, a groove 17 is formed on the side of the air inlet of the evaporator 2 in which the defrosting heaters 16, 16 are fitted, and a part of the partitions 8, 8 near the air inlet side is formed. By forming a notch and a groove 19 into which the defrosting heater is fitted in the end face of the notch 18, the partitions 8, 8... can be connected to the defrosting heater 1.
6, 16, and serves as a support member for the defrosting heater 16,
The defrosting heater 16 can also be attached to the partitions 8, 8, . , 16 can be easily replaced, and furthermore, the defrosting heaters 16, 16 can be easily installed and removed through the notch 18, and the defrosting heaters 16, 16 can be easily replaced through the grooves 19 of the partitions 8, 8... 16, 16 can be firmly held. In the embodiment shown in FIG. 6, the partitions 8, 8, . . . are constructed by combining various parts.

As described above, the present invention includes a plurality of aligned plate-like fins, at least three partitions disposed on both sides of the fins and at appropriate positions between the fins and dividing the fins into two or more groups; an evaporator comprising a plurality of refrigerant conduits running orthogonally to each of the fins and partitions; an outer plate that covers the evaporator and is provided with a blower in a ventilation hole formed on one side; a plurality of hanging devices fixed to the partition;
a dew pan disposed directly below the evaporator to accommodate the lower end of the outer surface plate and attached to the partition body with a hinge so as to be freely openable and closable; a groove formed in the end surface of each fin on the air inlet side; Since this is a ceiling-mounted cooling device including a defrosting heater fitted across the groove formed in the end face of the partition near the groove, each partition that is a component of the evaporator is In order to act as the aggregate of the cooling system, each suspended fixture, outer plate, dew pan, and defrosting heater can be installed centrally on the aggregate, and the evaporator and blower can be installed using multiple suspended fixtures. In addition to dispersing the weight of the outer plate and the dew pan provided with the evaporator, the outer plate and the dew pan, each partition body supports the evaporator, the outer plate, and the dew pan to improve the mounting strength of each. In addition to preventing deflection in the width direction of the saucer, it is possible to reduce the vibration noise of the outer surface plate that occurs when the blower is operated, and the cold air from each blower can be separated into each fin group without interfering with each other through partitions. The cold air can be reliably guided to the evaporator, thereby preventing the generation of turbulent flow due to dynamic pressure of adjacent cold air, equalizing the pressure of the cold air flow, and improving the heat exchange efficiency of the evaporator. In addition, the dew tray can catch not only the ice and dew from the evaporator during defrosting operation, but also the dew that travels through the outer surface plate, preventing dew from dripping from the cooling device into the refrigerator. In addition, since the dew pan is opened downward using the hinge as a fulcrum, maintenance and inspection inside the cooling device can be easily performed while the dew pan is supported on the cooling device, making maintenance and inspection work simple and easy. In addition to each fin that makes up the evaporator, each partition body also holds a defrosting heater, which improves the installation strength of the defrosting heater, and also allows each partition body that is a component of the evaporator to hold a defrosting heater. During defrosting, the fins are defrosted by the defrosting heater in the same way as each fin, so no frost remains on each partition during cooling immediately after defrosting, and air can be smoothly introduced into the evaporator.

[Brief explanation of the drawing]

The drawings show an embodiment of the cooling device of the present invention; FIG. 1 is a front view of the cooling device, FIG. 2 is a plan view thereof, FIG. 3 is a sectional view taken along line A-A' in FIG. 1, and FIG. 4 is a view from the back. FIG. 5 is a perspective view of a hanging fixture, and FIG. 6 is a perspective view of a main part of another embodiment. 2...Evaporator, 3...Blower, 4...Hanged equipment,
7... Fin, 8... Partition body, 9... Refrigerant conduit.

Claims (1)

[Claims] 1 A plurality of aligned plate-like fins, at least three partitions disposed on both sides of the fins and at appropriate locations between the fins and dividing the fins into two or more groups, and each of the fins and the partitions. an evaporator comprising a plurality of refrigerant conduits running perpendicular to the evaporator; an outer plate that covers the evaporator and is provided with a blower in a ventilation hole formed on one side; and is fixed to the partition body via the outer plate. a plurality of suspended fixtures, a dew pan disposed directly below the evaporator, accommodating the lower end of the outer surface plate, and attached to the partition body with a hinge so as to be openable and closable;
Ceiling-mounted cooling comprising a groove formed on the end face of each fin on the air inlet side, and a defrosting heater fitted across the groove formed on the end face of the partition near the groove. Device.