JPH0493578A - Refrigerator - Google Patents

Abstract

PURPOSE:To easily install/remove a freezing device in/from a main body of a refrigerator by a method wherein a storing chamber has a first storing chamber for storing a refrigerant evaporator and a second storing chamber for storing a refrigerant condensor. CONSTITUTION:A refrigerator 1 is composed of a main body 6 of refrigerator having a first thermal insulating box 3 forming a refrigeration chamber 2 and a second thermal insulating box 5 forming a storing chamber 4, a freezing device 7 for cooling an interior of the first thermal insulating box 3, a discharging duct 9 forming a discharging passage 8 and a truck 10. A storing chamber 4 is composed of a cold air chamber 41, the first storing chamber 42 and the second string chamber 43. A refrigerant evaporator 72 is stored within the first string chamber 42, and a refrigerant condensor 73 is stored within the second string chamber 43. The freezing device 7 is composed of a freezing cycle such as a refrigerant compressor 71, a refrigerant evaporator 72, a refrigerant condensor 73, and a pressure reducing device or the like, fans 74 and 75, a rectangular heat insulating wall 76 for dividing the chamber into the first storing chamber 42 and the second storing chamber 43, and a plate 77. In the even that the freezer device 7 is inserted into the storing chamber 4, the refrigerant evaporator 72 is stored in the first storing chamber 42, and further the refrigerant compressor 71 and the refrigerant condensor 73 are stored in the second storing chamber 43.

Description

[Detailed description of the invention] [Industrial application fields] The present invention relates to a refrigerator.

[Prior Art] Japanese Patent Application Laid-Open No. 58-150783 discloses that a refrigerator main body and a refrigerator unit are assembled into an assembly, and a refrigerator is installed at the upper end of the refrigerator main body so as to close an opening formed in the upper end of the refrigerator main body. It describes how to attach and detach the machine unit using a lift or the like.

Furthermore, in Japanese Patent Application Laid-Open No. 60-105878, after an inner box forming a refrigerating room, a refrigerator unit, and an outer box forming an outer frame are installed, a heat insulating material is placed in the space formed by these. A method of manufacturing an insulating box by foam filling is described.

[Problems to be Solved by the Invention] However, in the former method, a lift is inevitably required when placing the refrigerator unit on the upper end of the refrigerator body or lowering the refrigerator unit from the upper end of the refrigerator body. However, there was a problem in that it took time and effort to attach and detach the refrigerator unit and the refrigerator unit.

In addition, the latter method has a problem in that it requires a very large number of manufacturing steps when attaching the inner box, the outer box, and the refrigerator unit. Moreover, when the inner box, the outer box, and the refrigerator unit are attached, a heat insulating material is foamed and filled into the space formed by these. Therefore, when only the refrigerator unit breaks down, the heat insulating material must be removed in order to remove the refrigerator unit from the inner box and the outer box, which poses a problem in that it takes time and effort to remove the refrigerator unit.

SUMMARY OF THE INVENTION An object of the present invention is to provide a refrigerator in which a refrigerator unit can be easily attached to a refrigerator main body, and in which the refrigerator unit can be easily removed from the refrigerator main body.

[Means for Solving the Problems] (Claim 1) The refrigerator of the present invention includes a refrigerator main body having a heat insulating box forming a refrigerating room, and a refrigerator that is detachably attached to the refrigerator main body and cools the inside of the heat insulating box. A technical means is adopted in which the refrigerator main body has a storage chamber that opens at a side surface of the lower end of the refrigerator main body and into which the refrigerator unit is inserted.

(Claim 2) The refrigerator unit includes a refrigeration cycle having a refrigerant compressor, a refrigerant evaporator, a refrigerant condenser, and a pressure reducing device.

Further, the storage chamber includes a first storage chamber that stores the refrigerant evaporator, and a second storage chamber that is wider than the first storage chamber that stores the refrigerant condenser.

(Claim 3) Between the first storage chamber and the second storage chamber, the first
A heat insulating wall is provided to insulate the storage chamber and the second storage chamber.

[Operation] The refrigerator body and the refrigerator unit are attached by inserting the refrigerator unit into the storage chamber from the side of the lower end of the refrigerator body.

Moreover, the refrigerator main body and the refrigerator unit are removed by taking out the refrigerator unit from the storage chamber of the refrigerator main body.

That is, when attaching and detaching the refrigerator main body and the refrigerator unit, there is no need to use a lift and there is no need to remove the heat insulating material.

[Effects of the Invention] The refrigerator main body and the refrigerator unit can be attached and detached in a very simple manner without using a lift or removing the heat insulating material.

Embodiment] The refrigerator of the present invention will be explained based on an embodiment shown in FIGS. 1 to 5.

Figures 1 and 2 show a refrigerator.

The refrigerator 1 includes a refrigerator main body 6 having a first insulation box 3 forming a refrigerator compartment 2 and a second insulation box 5 forming a storage chamber 4, a refrigerator unit I cooling the inside of the first insulation box 3, and a refrigerator unit I that cools the inside of the first insulation box 3. 1
It is provided with an exhaust duct 9 that forms an exhaust passage 8 of the refrigerator unit 7 between it and the heat insulating box 3, and a trolley 10 for moving the refrigerator main body 6.

The first insulation box 3 has a heat insulation material 31 such as urethane as an outer surface material 3.
It is manufactured by integral foaming injection between 1a and the inner surface material 31b (see FIG. 5), and a door 32 for taking in and out of refrigerated items is attached to the front surface. Further, on the bottom wall of the first insulation box 3, there is an inlet 33 for taking in cold air from the storage chamber 4 into the refrigerator compartment 2, and an outlet 34 for discharging the air in the refrigerator compartment 2 into the storage chamber 4. is formed.

As shown in FIG. 3, the storage chamber 4 includes a cold air chamber 41 with a rectangular cross section, a first storage chamber 42 with a rectangular cross section that is wider than the cold air chamber 41, and a first storage chamber 42 with a rectangular cross section. It is composed of a second storage chamber 43 which is wider than the chamber 42 and has a rectangular cross-sectional shape. Note that the first storage chamber 42 houses a refrigerant evaporator 72 that cools the air, and the second storage chamber 43 houses a refrigerant condenser 73 that heats the air. The second storage chamber 43 has an opening 44 opened on the back side of the lower end of the refrigerator main body 6.

The second insulation box 5 is disposed below the first insulation box 3, and is made of a heat insulating material 51 such as urethane with an outer surface material 51a and an inner surface material 51b.
(See Figure 4) is manufactured by integral foam injection. As shown in FIG. 3, the inner peripheral wall of the second insulation box 5 has two steps 53 and 54 such that the width increases from the cold air chamber 41 of the storage chamber 4 toward the second storage chamber 43. It is formed. Note that a seal rubber 55 is provided on the step 53.

The refrigerator unit 7 includes a refrigerant compressor 71 and a refrigerant evaporator 72.
, a refrigerant condenser 73, a refrigeration cycle such as a pressure reducing device (not shown), and a fan 74 that blows air to the refrigerant evaporator 72.
and a fan 75 that blows air to the refrigerant condenser 73.
A rectangular heat insulating wall 76 that partitions the first storage chamber 42 and the second storage chamber 43, and a resin plate 77 on which these are placed.
It is composed of.

When the refrigerator unit 7 is inserted into the storage chamber 4, the refrigerant evaporator 72 is stored in the first storage chamber 42, and the refrigerant compressor 71 and refrigerant condenser 73 are stored in the second storage chamber 43. Ru.

In addition, the plate 77 has steps 78 and 79, and the storage chamber 4
It is formed in a planar shape that is almost the same as the planar shape of.

The exhaust passage 8 is for discharging the heated air that has passed through the refrigerant condenser 73 upward.

The exhaust duct 9 is attached so as to cover the back surfaces of the first insulation box 3 and the second insulation box 5, and is fixed at both ends with bolts 15. The exhaust duct 9 also includes an intake port 91 for taking air into the second storage chamber 43.

Casters 11 for movement are attached to the lower surface of the trolley 10.

The procedure for assembling this refrigerator 1 will be explained.

First, the refrigeration cycle, fans 74, 75, and heat insulating walls 76 are assembled on the resin plate 77, and then these refrigerator units 7 are inserted into the storage compartment 4 through the opening 44 opened on the back side of the refrigerator body 6. Slide the plate 77 inward until each step 78, 79 of the plate 77 comes into contact with the step 53, 54 formed on the inner peripheral wall of the second heat insulating box 5, respectively.

After that, as shown in FIG. 4, the step 5 of the second insulation box 5 is
The heat insulating wall 76 is fixed to the second heat insulating box 5 by tightening the bolt 13 to the nut 12 embedded in the heat insulating wall 76.

As a result, the refrigerator unit 7 is fixed to the lower end of the refrigerator main body 6.

Furthermore, as shown in FIG. 5, the exhaust duct 9 is fixed to the back surface of the refrigerator main body 6 by tightening bolts 15 to nuts 14 embedded in the first insulation box 3 and the second insulation box 5.

In addition, as shown in FIG. 3, since the inner peripheral wall of the second heat insulation box 5 is shaped with steps 53 and 54, the refrigerator body 6
When the refrigerator unit 7 is fixed to the lower end of the refrigerant evaporator 72, both ends of the refrigerant evaporator 72 in the width direction come into contact with the seal rubber 55 fixed to the inner peripheral wall of the second insulation box 5, and both ends of the insulation wall 76 in the width direction comes into contact with a step 54 formed on the inner circumferential wall of the second heat insulating box 5.

Therefore, the insulation seal between the cold air chamber 41, the first storage chamber 42, and the second storage chamber 43 can be achieved by simply inserting the refrigerator unit 7 into the lower end of the refrigerator main body 6 and fixing it with the bolts 13. This is done by the wall 76. Therefore, heat insulation sealing can be performed very easily and reliably.

As a result, the refrigerator unit 7 can be easily attached to the refrigerator main body 6, so that the number of manufacturing steps can be reduced. Further, the refrigerator unit 7 can be easily removed from the refrigerator main body 6 by removing the bolts 13.15, which is very convenient for maintenance.

(Modification) In this embodiment, the refrigerator unit is inserted into the second insulation box, but the second insulation box may be integrally assembled with the refrigerator unit and inserted into the storage chamber of the refrigerator body. .

Further, a recess formed at the lower end of the refrigerator body may be used as the storage chamber of the refrigerator body. In this case, the refrigerator unit may be assembled on a cart.

[Brief explanation of the drawing]

1 to 5 show one embodiment of the present invention. Fig. 1 is a perspective view showing the refrigerator in an exploded state, Fig. 2 is a side sectional view showing the refrigerator, Fig. 3 is another side sectional view showing the refrigerator, and Fig. 4 is a diagram showing the relationship between the second insulation box and the insulation wall. FIG. 5 is a cross-sectional view showing the fixed portion between the first heat insulation box and the exhaust duct. In the diagram: 1... Refrigerator 2... Refrigerator compartment 3... First insulation box (insulation box) 4... Storage room 6... Refrigerator body
7... Freezer unit 42... First storage chamber 43
...Second storage chamber 44...Opening part γ1...Refrigerant compressor 72...Refrigerant evaporator 73...Refrigerant condenser 7
・Insulating wall

Claims (1)

[Scope of Claims] 1) A refrigerator main body having a heat insulating box forming a refrigerating room; and a refrigerator unit detachably attached to the refrigerator main body to cool the inside of the heat insulating box, the refrigerator main body comprising: A refrigerator characterized by having a storage chamber that opens at a side surface of the lower end of the refrigerator main body and into which the refrigerator unit is inserted. 2) The refrigerator unit includes a refrigerant compressor, a refrigerant evaporator,
A refrigeration cycle having a refrigerant condenser and a pressure reducing device is provided, and the storage chamber includes a first storage chamber that stores the refrigerant evaporator;
The refrigerator according to claim 1, further comprising a second storage chamber that is wider than the first storage chamber and that stores the refrigerant condenser. 3) A heat insulating wall is provided between the first storage chamber and the second storage chamber to insulate the first storage chamber and the second storage chamber. Refrigerator as described.