JP2002340464A - Cooling storage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooling storage which is high in mounting stability of an evaporator and a cooling fan. SOLUTION: In the cooling refrigerator where a pair of supporting covers 11 and 12 are erected in opposition at the side edges of an in-storage air duct 16 where a cooling fan 6 is arranged horizontally, and each vertical edge of the above supporting covers 11 and 12 in a pair is coupled with each of side plates 10 existing on both sides of an evaporator 4 thereby attaching the above evaporator 6 to the above in-storage air duct 16, each side plate of the above evaporator 6 is put on the above in-storage air duct 16, whereby the above evaporator 6 is supported in a cantilever supporting condition by the above in-storage air duct 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling storage for improving the mounting stability of an evaporator and a cooling fan.

[0002]

2. Description of the Related Art A refrigeration storage is provided with a refrigeration unit including a refrigeration circuit component such as a compressor, a condenser and an evaporator, a condenser fan, a cooling fan, and other electric components. The refrigerator unit is provided on the ceiling of the cooling storage. The evaporator and the cooling fan, which are part of the refrigeration circuit components, are covered with a heat insulating case, and a hole as an opening penetrating into the refrigerator is provided on the lower surface of the heat insulating case. Therefore, in the conventional apparatus, the support of the evaporator and the cooling fan by the lower surface of the heat-insulating case does not strike, but is provided on the ceiling inside the heat-insulating case.

[0003]

However, in the conventional apparatus, the evaporator and the cooling fan are provided on the ceiling of the inner surface of the heat insulating case, and since there is no support from below, vibration occurs when the cooling fan rotates. There was a disadvantage that there was no stability.

[0004] The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a cooling storage in which an evaporator and a cooling fan are mounted with high stability.

[0005]

The present invention has the following configuration to achieve the above object. In the cooling storage that supports the evaporator and cooling fan in the upper part of the storage,
The cooling fan is supported by a beam provided in a refrigerator, and the evaporator is mounted on the beam.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 The present invention will be described in detail based on Embodiment 1 shown in FIGS. FIG. 1 is an external perspective view showing an attached state of an evaporator with a heat-insulating case removed, FIG. 2 is an enlarged external perspective view of a main part showing a mounting position relationship between the evaporator and an internal wind tunnel, and FIG. It is sectional drawing which shows the attachment relationship of (1). The same parts and members as those of the conventional apparatus are denoted by the same reference numerals as those, and the description thereof will be omitted, and only the parts that are different in configuration will be described. The first embodiment differs from the above-described conventional device in the configuration in that the rear portion of the side plate 10 of the evaporator 4 is extended to provide an extension portion 23, and the extension portion 23 is provided as an internal wind tunnel 16 as one mode of a beam. And the other configuration is the same as that of the above-described conventional device.

In the first embodiment, the weight of the evaporator 4 is reduced to the internal wind tunnel 16 by assembling the extending portion 23 of the evaporator 4 so as to be mounted on the internal wind tunnel 16 and supporting the evaporator 4 in a cantilever manner. We can support sharing. For this reason, it is possible to eliminate the need for the support angle 14 as in the conventional device and the formation of a front bent portion (not shown) on the side plate 10 for fixing the support angle 14.

Therefore, according to the first embodiment, the number of components for mounting the refrigerator unit on the base 1 can be reduced, and the assembling time can be shortened. Also, since there is no support angle 14, the flow of cold air can be made smooth,
This has the effect that the work of attaching and detaching the drain pan 21 can be simplified.

Instead of the first embodiment, two beams 26 are bridged at the ventilation opening, which is the opening of the base 1 provided on the ceiling storage surface, as in the modified example shown in FIGS. A configuration may be adopted in which a refrigerator unit 27 including the cooling fan 6 and the evaporator 4 is mounted on the beam 26 and supported. Thereby, the number of components of the components for attaching the refrigerator unit 27 to the base 1 can be significantly reduced.

Embodiment 2 In the first embodiment, the support plate 20 is formed separately from the side plates 11, 12, but this is shown in FIG.
Alternatively, a substantially crank-shaped support frame 28 may be integrally formed as in Embodiment 2 shown in FIG. That is, the support frame 28 is bent in an L-shaped cross section to secure strength, and is formed in accordance with each fixing member or fixing position. As shown in FIG. 8, a fixing hole 28c for the screw 30a is provided in the flange 28e, and a fixing hole 28d for the screw 30b is provided in the flange 28f. The flange 28e and the flange 28g are overlapped with each other to perform spot welding 28b to increase rigidity so as to be able to resist the load of the evaporator 4 and a drop impact, thereby preventing deformation. The flange 28a is provided in order to eliminate a gap with the inner surface of the heat insulating case 8, thereby preventing cold air from flowing between the suction side and the discharge side. The side plate 29 of the evaporator 4 has a straight shape.
Can be fastened, which makes it easier for drivers to enter. Further, a space 28h is provided in a portion corresponding to the support plate 20 so that the heat insulating case 8 can be easily inserted, and is fixed to the base 1 with a fixing hole 28i.

According to the second embodiment, the mounting plate of the internal wind tunnel and the evaporator support plate are integrated, so that the number of parts can be reduced and the assembling time can be shortened. Also,
Since the portion corresponding to the support plate 20 is bent in an L shape, the material cost can be reduced and the weight can be reduced. Also, the cooling fan 6 can be easily attached and detached without removing the support plate, and repair can be performed easily and in a short time. In addition, the vertical and horizontal flanges 28e and 28g of the support frame 28 are overlapped and spot welded. Due to 28b, the strength against torsion and bending stress was increased. Furthermore, the side plate 29 of the evaporator
Has a flat shape, the screw 30a can be screwed in from the front, and the driver can be easily used.

Embodiment 3 FIG. Embodiment 3 will be described with reference to FIG. The support frame 128 has a cross section L for securing strength.
It is bent in a letter shape and formed in accordance with each fixing member and fixing position. The screw 13 is attached to the flange 128e.
A fixing hole 128c for Oa is provided. In the second embodiment, the spot welding 28b (FIG. 8) is performed by overlapping the flange 28e and the flange 28g.
The screw 130b is inserted into the fixing hole 128b formed by overlapping the fixing holes of the flanges 128g and the flanges 128g, and the fixing holes of the respective flanges overlap each other, and are fixed to the evaporator side plate 29. The rigidity is increased so as to be able to resist the load of the evaporator 4 and a drop impact, thereby preventing deformation. The flange 128a is provided in order to eliminate a gap with the inner surface of the heat insulating case 8, thereby preventing cold air from flowing between the suction side and the discharge side. The side plate 29 of the evaporator 4 has a straight shape so that the screws 130a and 130b can be fastened from the front, so that the driver can easily enter. Further, the internal wind tunnel support plate 120 is welded or rivet-fixed to the internal wind tunnel 16. The support plate 2 is inserted so that the heat insulating case 8 can be easily inserted.
A space 120h is provided in a portion corresponding to the
Fixed at 0i.

Embodiment 4 Embodiment 4 will be described with reference to FIGS. FIG. 12 is a top view of a conventional fan motor blanket, FIG. 13 is a top view showing a fan motor blanket according to the fourth embodiment, and FIG. 11 is a perspective view of the fan motor blanket according to the fourth embodiment. The fourth embodiment relates to a mounting bracket for the fan motor 32 of the cooling fan 6 of the refrigerator unit. By making it easy to see the mounting screw from the maintenance side, the workability when replacing the fan motor 32 is improved, and it is ensured. It is intended to be replaced soon. That is, when the fan motor 32 of the cooling fan 6 fails, by removing a cover (not shown) of the heat insulating case 8, the refrigerator unit can be replaced without lowering the refrigerator unit from the heat insulating box. The fan motor 32 is fixed to the fan motor bracket 19.
Is fixed to a not-shown internal shroud corresponding to the reference numeral 16 in FIG. When replacing the fan motor 32, the fixing screws 35 a to 3
5d is removed and taken out of the heat insulating case 8 for replacement. During this replacement work, the fan motor 32 is
The view is only a very small area that can be seen from the front with the cover removed. However, in the structure of the conventional fan motor bracket 19, since the dimension A and the dimension B of the fan motor bracket 19 are the same as shown in FIG. 12, the fixing screws 35a and 35b are not seen from the front, and it takes time to attach and detach. Erroneous work may damage the cross groove of the screw head.

Therefore, in the fourth embodiment, the dimension A is
Is to make it wider. That is, dimension A> dimension B
As a result, the fixing screws 35a and 35
b was made visible (see FIG. 13). Fan motor 3
13, the four bracket legs 33a, 33 are maintained so that the dimensions A and B are always maintained as shown in FIG.
b, 33c, 33d are fixed to one fixed plate 36 by welding. The fixing plate 36 is provided with a round hole 37 for mounting the fan motor 32. Fan motor bracket 33
Has a dimension that does not interfere with the cooling fan of the fan motor 32, and is provided with a flange 38 for fixing to the shroud in the refrigerator. Reference numeral 39 denotes a round hole formed in the flange 38 for fixing the fan motor 32 to the shroud in the refrigerator.

According to the fourth embodiment, since the screws located on the back side toward the front are arranged so as to be visible, the screws can be easily loosened, so that the man-hour can be reduced, and the cross groove of the screw head can be crushed by mistake. Can be suppressed.

Embodiment 5 The fifth embodiment relates to a mounting bracket for a fan motor of a cooling fan 6 of a refrigerator unit, similar to the fourth embodiment, and reduces the number of steps for attaching and detaching a fan motor. That is, in the fourth embodiment, as shown in FIGS. 11 and 13, when removing the fan motor of the cooling fan 6 from the fixing plate 36, completely remove the fixing screw 35 and then take it out of the heat insulating case 8 for replacement. I do. And the fan motor 32
Is covered by the heat insulating case 8, so that the replacement space is limited. However, in such a structure, the fan motor bracket 33 is provided with a round hole 3 formed in the bracket 33.
9 by inserting the fixing screw 35 and screwing it in.
Unless the fixing screw 35 is completely removed, the fan motor 32 cannot be attached / detached, requiring much man-hour. Further, the fixing screw 35 is provided with a hole 18 for the cooling fan 6 of the internal wind tunnel 16.
From the inside of the heat insulation box.

Therefore, in Embodiment 5, FIGS.
5, the round hole 39 provided at the free end of the fan motor bracket 33 is formed by changing to a U-shaped notch 40. By adopting such a configuration, it is possible to detach by simply loosening the fixing screw 35 slightly and rotating it.
Since the number of steps can be reduced and the fixing screw 35 does not need to be completely removed, it is possible to prevent the fixing screw from falling down from the hole 18.

Embodiment 6 FIG. Embodiment 6 Embodiment 6 relates to an evaporator of a refrigerator unit, which surely guides a lump of frost during defrosting to a drain pan and prevents the lump from falling into a refrigerator. Conventionally, as shown in FIG. 23 and FIG. 24, a refrigerator unit includes a refrigeration circuit component such as a compressor 43, a condenser 44, an evaporator 45, a condenser fan 46, a cooling fan 47, and others on a frame 41 and a base 42. The heat insulating case 48 covers the evaporator 45 and is fixed to the frame 41. This unit has a cooling storage 49 as shown in FIG.
A machine which is mounted on the ceiling and operated, sucks air 51 in the refrigerator through a square hole 50 opened in the ceiling, and blows out cool air 52 cooled by the evaporator 45 to cool the refrigerator. The evaporator 45 is located above the square hole 50 in the ceiling of the cooling storage 49 as shown in FIG. 24, and a plate 54 for separating suction and blowing and a duct 53 for wind guide are attached to the bottom of the unit.

When the refrigerator unit is operated, invasion of outside air due to opening and closing of the door and moisture from the contents cause the evaporator 45 to open.
Frost 55 grows on the evaporator 45
It is difficult for the wind 56 to pass through, and the cooling performance is reduced (see FIG. 2).
5). Therefore, the refrigerator unit periodically performs a defrosting operation to melt the frost 55 that has grown on the surface of the evaporator 45, receives the defrost water 57 by the drain pan 58, and drains the water from the drain port 59 to the outside of the machine. At this time, if the operating conditions and installation conditions are poor, the frost 55 grows greatly. Conventionally, since the evaporator 45 is arranged vertically, the inner side is melted at the time of defrosting, and the frost 60 remaining as a lump on the surface side of the evaporator 45 is peeled off from the evaporator 45, falls outside the wall of the drain pan 58, and falls inside the cooling storage. Will fall (Fig. 2
6). To solve the above problem, the drain pan 58 may be enlarged, but it is difficult to specify the size of the frost 55 because the amount of the frost 55 changes depending on the use conditions. In addition, if the drain pan 58 is enlarged, the suction area 62 is reduced and the performance is reduced. Further, increasing the size of the drain pan 58 is not preferable because it causes resistance when the air 51 in the refrigerator is sucked.

In the fifth embodiment, as shown in FIGS. 16 to 18, the evaporator 45 is moved at an angle θ ° to the wind blowing side.
It is characterized by tilting. Thereby, the evaporator 4
The frost 60 remaining as a lump on the surface side of the evaporator 45
It does not come off and slides down its surface.
During that time, since the heat is in contact with the evaporator 45, the heat dissolves the lump 60, which falls into the drain pan 58 and the drain 59
Drained more out of the machine. Even if the frost lump 60 is not completely melted while in contact with the evaporator 45, it falls into the drain pan 58, so that the frost 60 is reliably drained without dropping into the cooling storage.

In the sixth embodiment, since the evaporator 45 is provided with an inclination, the lump of frost 60 does not fall into the refrigerator and can be received and drained by the drain pan 58. For this reason, the frost 65 that has grown on the blowing side is easily peeled off from the evaporator 45. In addition, the frost 67 that grew on the upper portion of the pipe 66 on the side surface also became easy to fall. Since the frost lump 60 does not fall into the storage, the drain pan 58 does not need to be formed large. Furthermore, a large suction area 62 can be taken,
There are various effects such as securing the refrigerating capacity and reducing the outer dimensions 63.

Embodiment 7 FIG. In the seventh embodiment, as shown in FIGS. 19 to 22, in addition to the configuration in the sixth embodiment, a heater 71 is attached so as to be inserted into the notch 70 of the end plate 68 and the fin 69 of the evaporator 45. It is characterized by. With this configuration, the operation at the time of defrosting is the same as the operation of the sixth embodiment, but since the heater 71 having a large amount of heat is attached, the frost 60 can be more quickly dissolved.

[0023]

As described above, according to the cooling storage of the present invention as described above, the mounting stability of the evaporator and the cooling fan can be improved.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing an attached state of an evaporator with a heat insulating case removed in a first embodiment.

FIG. 2 is an enlarged perspective view of a main part showing the relationship between the mounting positions of an evaporator and an internal wind tunnel in the first embodiment.

FIG. 3 is a sectional view showing an attachment relationship between an evaporator and a cooling fan according to the first embodiment.

FIG. 4 is a side view of a modification of the first embodiment.

FIG. 5 is a cross-sectional view as viewed from an AA cross section of the modification.

FIG. 6 is an external perspective view of a second embodiment.

FIG. 7 is an enlarged side view of the second embodiment.

FIG. 8 is an enlarged external perspective view of a main part of the second embodiment.

FIG. 9 is a top view of FIG.

FIG. 10 is an enlarged perspective view of an essential part of a third embodiment.

FIG. 11 is an external perspective view of a main part for describing a relationship between a fan motor bracket and a fixing hole according to the fourth embodiment.

FIG. 12 is a top view of a conventional fan motor bracket.

FIG. 13 is a top view in the fourth embodiment.

FIG. 14 is an external perspective view of a fan motor bracket according to a fifth embodiment.

FIG. 15 is an external appearance perspective view for describing assembling in the fifth embodiment.

FIG. 16 is a side view for explaining an operation according to the sixth embodiment.

FIG. 17 is a main part side view for describing a defrosting operation in the sixth embodiment.

FIG. 18 is a side view illustrating a state in which a lump of frost falls according to the sixth embodiment.

FIG. 19 is a front view illustrating a heater pipe according to the seventh embodiment.

FIG. 20 is an enlarged external perspective view of a main part of a heater pipe according to a seventh embodiment.

FIG. 21 is a side view illustrating a state in which frost falls according to the seventh embodiment.

FIG. 22 is a side view illustrating a state in which a lump of frost falls according to the seventh embodiment.

FIG. 23 is an external perspective view of a conventional device according to Embodiments 6 and 7.

24 is an enlarged view of a main part of FIG. 23, and FIG.
FIG. 3 is an enlarged side view of an arrow X in FIG. 3, and FIG. 3B is an enlarged external perspective view of a main part illustrating a relationship between an evaporator and a drain pan.

FIGS. 25A and 25B are views for explaining a dripping state of frost, where FIG. 25A is a side view and FIG. 25B is a front view.

FIG. 26 is a side view of the refrigerator unit.

[Explanation of symbols]

4, 45: evaporator, 6: cooling fan, 10: side plate of evaporator, 11, 12: support cover, 16: internal wind tunnel.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Minoru Kobayashi 3-16 Hoshizaki Electric Co., Ltd., Sakaemachi Minamikan, Toyoake-shi, Aichi Prefecture (72) Inventor Kazuyoshi Tanaka 16-16 Hoshizaki Electric Co., Ltd. (72) Inventor Kazuo Sato 3-16 Hoshizaki Electric Co., Ltd., Sakaemachi Minami-kan, Toyoake-shi, Aichi Prefecture (72) Inventor Akira Harada 3-16 No. 16 Sakaemachi Minami-kan, Toyoake-shi, Aichi Hoshizaki Electric Co., Ltd.

Claims (1)

[Claims] 1. A cooling storage in which an evaporator and a cooling fan are supported in an upper part of a refrigerator, wherein the cooling fan is supported by a beam provided in the refrigerator, and the evaporator is mounted on the beam. A cold storage, characterized by: