JP3389494B2 - Refrigerated freezer showcase - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerating / freezing showcase for storing refrigerated or frozen products.

[0002]

2. Description of the Related Art FIG. 1 is a front view of a refrigerating / freezing showcase, FIG. 2 is an enlarged sectional view taken along line XX of FIG. 1, and FIG. 3 is an enlarged sectional view taken along line YY of FIG. It is shown.

In FIGS. 1 to 3, reference numeral 1 is a box-shaped machine case, reference numeral 2 is a partition frame provided at the upper end of the machine case 1, and reference numeral 3 is a column that stands upright at the four corners of the top surface of the partition frame 2. ,
Reference numeral 4 is a top plate provided at the upper end of the support pillar 3, reference numeral 5 is a side glass having a double glass structure that closes the opening between two adjacent support pillars 3 and the other opening facing the opening, and reference numeral 6 is A front door that opens and closes the remaining one opening, a reference numeral 7 indicates a rear door that opens and closes the remaining one opening, and a reference numeral 8 indicates a space surrounded by two side glass 5, a front door 6 and a rear door 7. A refrigerating / freezing room consisting of the above, a reference numeral 9 is a shelf plate for vertically dividing the refrigerating / freezing room 8, a reference numeral 10 is a bottom plate of the refrigerating / freezing room 8, and a reference numeral 11 is a leg provided at four corners of the bottom surface of the machine case 1.

The machine case 1 has an insulating material AM on its inner surface.
The electric compressor 12, the condenser 13, the evaporator 14, and the expansion means (not shown) that constitute the refrigeration circuit are arranged inside the interior. Further, a fan 15 for air-cooling the condenser 13 is opposed to the upper side of the condenser 13, and a fan 16 for sending cooling air into the refrigerating / freezing chamber 8 is arranged on the side of the evaporator 14. These fans 1
The motors 5 and 16 are rotated by a common motor 17. Further, below the evaporator 14, a drainage pipe 18 for guiding the defrosted water and the like downward is arranged. Furthermore, a drain pan 19 that receives the drainage from the drainage pipe 18 is detachably provided on the bottom surface of the machine case 1.

As shown in FIG. 3, the partition frame 2 has a curved portion 2a which enters the inside of the machine case 1 (machine room),
A protruding portion 2b exposed to the outside of the machine case 1 is provided. The lower surface of the side glass 5 is supported at an intermediate position between the curved portion 2a and the protruding portion 2b. A discharge port 21 described later is located almost above the curved portion 2a.

The bottom plate 10 forms the bottom surface of the refrigerating / freezing chamber 8 while being placed on the partition frame 2. Suction ports 20 and discharge ports 21 are provided in rows on both sides of the bottom plate 10. As can be seen from FIG. 2, the suction ports 20 are parallel to one side glass 5 and the discharge ports 21 are parallel to each other. It has an arrangement form parallel to the other side surface glass 5. By the rotation of the fan 16, the air in the refrigerating / freezing chamber 8 is guided to the evaporator 14 through the suction port 20, and the air cooled by the evaporator 14 is sent into the refrigerating / freezing chamber 8 through the discharge port 21 ( (Refer to the outline arrow in FIG. 3). By the way, the cooling temperature of the evaporator 14 is appropriately set according to the cold storage temperature of the products stored in the refrigerating / freezing chamber 8.

Each of the front door 6 and the rear door 7 has a rectangular frame 6a, 7a, a glass plate 6b, 7b having a double glass structure arranged inside the frame 6a, 7a, and a frame 1b. Door shafts 6c and 7c arranged at the upper and lower positions of the side portions, and handles 6d and 7
d (reference numeral 7d is omitted in the drawing) and packings 6e and 7e arranged along the frames 6a and 7a. In each of the front door 6 and the rear door 7, the upper door shafts 6c and 7c are rotatably supported on the top plate 4 side, and the lower door shafts 6c and 7c are rotatably supported on the partition frame 2 side, respectively. The front opening and the rear opening of the refrigerating / freezing room 8 are opened and closed by the rotation around one side of the door, and the front opening and the rear opening are covered in an airtight state in the closed state.

[0008]

By the way, in the refrigerating and freezing showcase described above, the discharge port 21 of the bottom plate 10 is close to the lower portion of the side glass 5, and a part of the partition frame 2 supporting the lower surface of the side glass 5. Since the (curved portion 2a) has a structure that directly contacts the cooling air, when the air cooled by the evaporator 14 is sent into the refrigerating / freezing chamber 8 through the discharge port 21, the heat transfer from the partition frame 2 and the bottom plate 10 is performed. The lower part of the side surface glass 5 is violently cooled by the blowing of the cooling air discharged from the discharge port 21 or the discharge port 21. Due to the cooling, dew condensation CS is generated on the outer surface of the lower part of the side surface glass 5 and flows down to the machine case 1. There is a problem that the outer surface and floor surface of the car are soiled.

The present invention was created in view of the above circumstances, and an object thereof is to cool a glass plate on the discharge port side when cooling air is sent into the refrigerating / freezing chamber through the discharge port. (EN) A refrigerating / freezing showcase capable of suppressing the occurrence of dew condensation and preventing the dew condensation due to the cooling.

[0010]

In order to achieve the above object, the present invention provides a refrigerating / freezing chamber in which four sides are surrounded by glass plates on the upper side of a machine case in which an evaporator and a fan for feeding cooling air are arranged. A suction port is formed in parallel with the glass plate on the same side on one side of the bottom plate that constitutes the bottom surface of the refrigerating / freezing room, and a discharge port is formed on the other side in parallel with the glass plate on the same side, In the refrigerated freezer showcase where the fan guides the air in the freezer-refrigerated room to the evaporator through the inlet, and the air cooled by the evaporator is sent upward into the refrigerated freezer through the outlet to keep the product in the refrigerated freezer indoors. Form the discharge port of the bottom plate at a position away from the glass plate on the discharge port side, and project upward from the outer wall of the discharge port of the bottom plate.
A baffle plate composed of the vertical part that emerges is provided on the glass plate side of the discharge port, and when the air cooled by the evaporator is sent upward through the discharge port into the refrigerating / freezing chamber, it goes from the discharge port to the inner surface of the glass plate. Cooling air flow through the baffle plate
It was intercept with, as its main characteristic that.

According to the refrigerating / freezing showcase of the present invention, the discharge port of the bottom plate is formed at a position apart from the glass plate on the discharge port side, and the air cooled by the evaporator discharges the discharge port.
A baffle plate is installed on the glass plate side of the discharge port to block the flow of cooling air from the discharge port toward the inner surface of the glass plate when it is sent upward into the cold storage / freezer chamber through the discharge port. It is possible to prevent the glass sheet from being cooled by the blowing of the cooling air or the heat transfer when the glass sheet is sent upward to the sheet.

[0012]

FIG. 4 is a partial cross-sectional view of a refrigerating / freezing showcase corresponding to FIG. 3 according to an embodiment of the present invention. By the way, the entire configuration of the refrigerating / freezing showcase of the present embodiment is the same as that of the refrigerating / freezing showcase shown in FIGS. 1 to 3 except for the configuration of the bottom plate 31 and the arrangement structure thereof, which will be described later in detail. Description of parts will be omitted, and reference numerals shown in FIGS. 1 to 3 will be cited in the following description.

In FIG. 4, reference numeral 1 is a mechanical case, reference numeral AM is a heat insulating material, reference numeral 5 is a side glass, and reference numeral 31 is a bottom plate.

The bottom plate 31 also serves as the partition frame 2 in the refrigerating / freezing showcase shown in FIGS. 1 to 3.
The bottom surface of the refrigerating / freezing chamber 8 is formed in a state of being arranged at the upper end of the machine case 1, and the side glass 5, the support column 3, and the lower door shafts 6c and 7c of the front and rear doors 6 and 7 are supported.

Suction ports (not shown) and discharge ports 31a are provided in rows on both sides of the bottom plate 31, and the suction ports are parallel to the side glass 5 on one side, and the discharge ports 31 are formed.
a has an arrangement form parallel to the other side surface glass 5.

The outer wall of the discharge port 31a of the bottom plate 31 is constituted by a vertical plate portion 31b, and the lower portion of the vertical plate portion 31b is inserted into the recess AM1 of the heat insulating material AM. The upper portion of the vertical plate portion 31b projects above the discharge port 31a, and this projecting portion is the discharge port 31a.
It constitutes a baffle that blocks the flow of the cooling air from a toward the inner surface of the side glass 5.

Further, the outer surface of the vertical plate portion 31b is provided with an L-shaped plate portion 31c having a shape that extends horizontally from the middle of the outer surface and extends vertically downward from the horizontal end. The lower edge of the L-shaped plate portion 31c is in contact with the upper surface of the heat insulating material AM, whereby an air heat insulating layer AL is formed inside the L-shaped plate portion 31c.

Further, the outer surface of the L-shaped plate portion 31c is provided with a T-shaped plate portion 31d having a shape that extends horizontally from the middle of the outer surface and vertically extends vertically from a horizontal end. The lower end of the side glass 5 is inserted into the recess formed between the T-shaped plate portion 31d and the L-shaped plate portion 31c via the packing PC, and the side glass 5 is inserted by the recess.
The lower surface of is supported.

The operation and effect of this embodiment will be described below. By the rotation of the fan 16, the air in the refrigerating / freezing chamber 8 is guided to the evaporator 14 through the suction port of the bottom plate 31, and the air cooled by the evaporator 14 is discharged through the discharging port 31 a of the bottom plate 31 in the refrigerating / freezing chamber 8. It is sent inside (see the white arrow in Fig. 4).

In the structure of the bottom plate 31 and the arrangement structure thereof, since the air heat insulating layer AL is interposed between the discharge port 31a and the lower portion of the side glass 5, the discharge port 31a is equal to the width dimension of the air heat insulating layer AL. Only apart from the side glass 5. That is, when the cooling air is sent into the refrigerating / freezing chamber 8 through the discharge port 31a, the degree to which the cooling air is blown to the lower inner surface of the side glass 5 can be reduced based on the distance, and the discharged cooling air can be reduced. It is possible to make it difficult for the cold heat of 1 to be transmitted to the lower portion of the side glass 5.

Moreover, the discharge port 31a of the vertical plate portion 31b
The portion (baffle plate portion) projecting above can block the flow of the cooling air from the discharge port 31a toward the inner surface of the side surface glass 5, so that the cooling air discharged from the discharge port 31a is at the bottom of the glass plate 5. The degree of being sprayed on the inner surface can be reduced more effectively.

Further, since the air heat insulating layer AL is provided between the discharge port 31a and the lower portion of the side glass 5, the cooling heat of the discharge cooling air is reduced to the lower portion of the side glass 5 by the heat insulating function of the air heat insulating layer AL. Can be hardly transmitted to.

Further, since the distance from the vertical plate portion 31b to the T-shaped plate portion 31d that supports the lower surface of the side glass 5 is long, even if the vertical plate portion 31b is cooled by the cooling heat of the discharge cooling air, the cold heat is generated by the side glass. Heat transfer to 5 can be made difficult.

Thus, when the cooling air is sent into the refrigerating / freezing chamber 8 through the discharge port 31a, the side glass 5 on the discharge port 31a side is appropriately prevented from being cooled by the blowing of the cooling air or the heat transfer. As a result, it is possible to properly prevent the generation of dew condensation due to the cooling and the drop-off thereof.

Of course, the above-described actions and effects can be similarly obtained on the suction port side having the same structure.

In the above embodiment, the bottom plate shown in FIG.
Although the partition frame in the refrigerating / freezing showcase shown in FIG. 3 is also used as an example, the bottom plate may have a two-part internal and external configuration, the inner part may be used as the bottom plate, and the outer part may be used as the partition frame.

In the above-mentioned embodiment, the vertical dimension of the air insulating layer is shorter than that of the vertical plate portion, but the vertical dimension of the air insulating layer may be longer than that of the illustrated example. Alternatively, the vertical dimension of the vertical plate portion may be substantially matched.

[0028]

As described in detail above, according to the present invention,
When the cooling air is sent into the refrigerating / freezing chamber through the discharge port, the cooling of the glass plate on the discharge port side due to the blowing and heat transfer of the cooling air is suppressed, and the occurrence of dew condensation due to the cooling and its occurrence It is possible to accurately prevent runoff.

[Brief description of drawings]

1] Front view of a refrigerated freezer showcase

FIG. 2 is an enlarged sectional view taken along line XX of FIG.

FIG. 3 is an enlarged sectional view taken along line YY of FIG.

FIG. 4 is a partial cross-sectional view of a refrigerated freezer showcase corresponding to FIG. 3 according to an embodiment of the present invention.

[Explanation of symbols]

5 ... Side glass, 8 ... Refrigerating / freezing room, 31 ... Bottom plate, 31a
... Discharge port, 31b ... Vertical plate part, 31c ... L-shaped plate part,
31d ... T-shaped plate portion, AL ... Air heat insulating layer.

Front Page Continuation (72) Inventor Zato Kotoda 20, Shoucho, Isesaki-shi, Gunma Sanden Co., Ltd. (72) Inventor Kunihiro Maniwa 20, Shou-cho, Isesaki, Gunma Sanden Co., Ltd. (56) Reference: Japanese Patent Laid-Open No. 8-233433 (JP, A) Actual Development Sho 58-103687 (JP, U) Actual Development Sho 54-140357 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) ) F25D 11/00 101 F25D 17/08 318

Claims (4)

(57) [Claims] 1. A refrigerating / freezing chamber having four side surfaces surrounded by glass plates is provided on an upper side of a machine case in which an evaporator and a fan for feeding cooling air are arranged, and one side of a bottom plate constituting a bottom surface of the refrigerating / freezing chamber. Has a suction port formed in parallel with the glass plate on the same side and a discharge port formed on the other side in parallel with the glass plate on the same side.The fan guides the air in the freezer compartment to the evaporator through the suction port. , In a refrigerating freezer showcase that keeps the product in the refrigerating / freezing room by keeping the air cooled by the evaporator upward through the discharge port, the bottom plate's outlet is located away from the glass plate on the outlet side. And formed upwards from the outer wall of the discharge port of the bottom plate.
A baffle plate composed of vertical parts is provided on the glass plate side of the discharge port, and when the air cooled by the evaporator is blown upward into the refrigerating / freezing chamber through the discharge port, the cooling air goes from the discharge port to the inner surface of the glass plate. Block the flow of
A refrigerated freezer showcase characterized by the above . 2. A discharge port and a lower portion of the glass plate on the discharge port side.
An air insulation layer is provided between the glass plates to cool the discharge cooling air.
The air insulation layer suppresses the transmission to the lower part of
And, refrigerated showcase of claim 1, wherein a. 3. The air insulation layer is an outer wall of the discharge port of the bottom plate.
Or extending horizontally from the baffle and vertically downward from the horizontal edge
Consists of the inside of the L-shaped plate portion with the shape extending to
Refrigerated showcase of claim 2, wherein that, that is. 4. The L-shaped plate portion extends horizontally from its outer surface.
And a T-shaped plate with a shape that extends vertically from the horizontal end
A part is provided between the T-shaped plate part and the L-shaped plate part
The refrigerated freezer showcase according to claim 3 , wherein the glass plate is supported by the formed recess .