JP3394475B2 - Cool box - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cool box for storing fresh food or the like that needs to be kept cold and used when it is refrigerated or frozen by a truck or the like.

[0002]

2. Description of the Related Art As a cool box, JP-A-9-273855
As shown in the publication, a small cold storage box has been used for delivery of trucks and the like in distribution of fresh food. In this cool box, an evaporator and a cold storage agent are installed inside the cool box body, while a machine room in which a compressor, a condenser, a condenser fan and the like are installed is provided on the ceiling of the cool box body. Drive this condenser fan to forcibly cool the condenser with outside air,
At the same time, the heat of vaporization of the evaporator is used to store the cold storage agent and keep it cool to keep the inside of the main body cool.

[0003]

However, in the conventional cold storage box described above, the condenser or the like, which is a component of the cooling device, is arranged up to the front side of the ceiling. Narrow, lack of internal volume. In addition, since the machine room for the unit stand that integrates the cooling equipment such as the compressor, condenser, and condenser fan is installed on the ceiling, the strength of the unit stand is weak, the sound of the compressor etc. is high, There was a bad effect that the vibration was large.

In order to solve the above conventional problems, the present invention widens the entrance height, makes the ceiling structure stepwise, increases the internal volume, reduces the noise of the compressor and the like, and delivers the truck and the like at the time of delivery. The purpose is to reduce vibration.

[0005]

In order to achieve the above object, the present invention has a front side ceiling as a main body outer box top surface, an intermediate ceiling lower than the top surface and a rear side ceiling lower than the intermediate ceiling. A unit stand that is formed by integrating the condenser, which is a component of the cooling equipment, on the middle ceiling and the compressor, which is also a component of the cooling equipment, on the rear ceiling. The machine room of the
Therefore, the outside air is sucked in through the top air intake port in the middle part, and
Cooling equipment that discharges to the top panel on the side and the back panel on the back,
The back panel has a structure with cut-and-raised parts .

As a result, the height of the inlet is widened and the internal volume is increased to increase the amount of fresh food or the like that needs to be kept cold, thereby improving the working efficiency of the storage and the strength of the unit table. .

[0007] Further, a unit stand on which a condenser, a compressor and the like are mounted and integrated, and a cooling device for sucking the outside air from the top surface of the middle part and discharging it to the rear side top surface and the back panel to enhance the cooling performance. And, a cut-and-raised part is provided on the back panel.

As a result, it is possible to reduce the noise of the compressor or the like on the ceiling where the condenser, the condenser fan and the like are installed.

Further, a unit stand on which a condenser, a compressor and the like are mounted and integrated, bolts for fixing the unit stand at the front and rear and in the middle, and a soundproof sheet are provided under the unit stand.

As a result, vibrations at the time of delivering a truck or the like and at the time of keeping the inside of the body cool are reduced, and the reliability of the functional parts on the unit base can be improved.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is such that the front side ceiling of the cool box body is the top surface of the outer box of the main body, the middle ceiling is lower than the top surface and the rear side ceiling is the middle ceiling. Formed lower, the condenser, which is a component of the cooling device, is mounted on the middle ceiling, and the compressor, which is also a component of the cooling device, is mounted and integrated on the rear ceiling. A machine room for the unit stand is installed and stored in the machine room for cooling.
Suck outside air from the top air intake port in the middle to improve performance
Cooling that is carried out and discharged to the rear side top panel and rear back panel
A device and a cut-and-raised part on the back panel.
Ri, to widen the frontage, and increases the amount that accommodates the cold is perishable foods such as required by increasing the internal volume, improvement of the receiving work efficiency, has an action to be enhanced unit carriage strength, or
In addition, a compressor on the ceiling where a condenser, condenser fan, etc. are installed.
It has the effect of reducing the sound such as .

[0012]

According to a second aspect of the present invention, a unit base on which a condenser, a compressor and the like are mounted and integrated, bolts for fixing the unit base in the front and rear and in the middle, and below the unit base. Since the soundproof sheet is provided, the vibration during delivery of a truck or the like and when the inside of the body is kept cool is reduced, and the reliability of the functional parts on the unit base can be improved.

The invention according to claim 3 of the present invention is a cool box.
Use the front side ceiling of the main body as the top surface of the main body outer box, and the middle ceiling.
Lower than the surface and rear side ceiling lower than the middle ceiling
On the ceiling of the middle part, which is a component of cooling equipment.
A compressor and a cooling component on the rear side ceiling.
Machine room with a unit stand equipped with a compressor etc.
A cooling device that draws in outside air from the top surface of the middle part and discharges it to the rear side top surface and the back panel, and a soundproof material attached to the inside of the top surface, and a condenser fan unit etc. is installed. This has the effect of reducing the noise of the compressor on the ceiling.

[0015]

EXAMPLES Examples of the cool box according to the present invention will be described below.
A description will be given with reference to the drawings. The same components are designated by the same reference numerals and detailed description thereof will be omitted.

(Embodiment 1) FIG. 1 is a side sectional view of a cool box according to a first embodiment of the present invention, and FIG. 5 is a side sectional view showing the structure of a conventional cool box.

The cool box body 1 is composed of an inner box 2 and an outer box 3 made of stainless steel, and a heat insulating material 4 filled with a polyurethane foam resin between both boxes. As the top surface of the main body outer box 3, the middle ceiling 23 is formed lower than the top surface, the rear side ceiling 24 is formed lower than the middle ceiling 23, and the top surface of the inner box 2 is inclined 22a.
A machine room 7a of an integrated unit base 7 for housing the compressor 5, the condenser 6, the condenser fan 6a, etc. is installed on the middle ceiling 23 and the rear side ceiling 24.

On the lower surface of the cool box body 1, there is a cold storage chamber 10 in which an evaporator 8 and a cold storage agent 9 which is fixed so as to sandwich the pipe forming the evaporator 8 are installed. A heat insulation compartment wall 12 distinguishes it from the cold storage chamber 11 that cools the transported goods. On the front of the cool box body 1 is installed a heat insulating door 13 that can be opened and closed.
It is possible to put in and take out transported items.

A duct 14 communicating with the cold storage chamber is installed on the rear surface of the cool box body 1, and a fan 15 installed at the upper part of the back surface sends air to the entire cool room 11. ing.

The operation will be described based on the above configuration. When commercial power is input to the cold storage, the temperature of a cold storage agent (not shown) installed near the cold storage agent 9 (for example, a thermistor) is detected.
It is determined by the cold storage agent temperature detection whether or not the temperature detected in step 1 is a predetermined temperature, and if the temperature is equal to or lower than the predetermined temperature, the temperature control operation in the cold storage chamber 11 is performed.

When the temperature is higher than the predetermined temperature, the compressor 5 is operated, the evaporator 8 is cooled, and the regenerator 9 is frozen. The outside air is inhaled from the top as shown by the arrow in Fig. 1,
Heat is exchanged in the condenser, and the heat is discharged to the top and back of the rear side. When it is determined that the temperature detected by the internal temperature detection attached to the internal fan 15 is equal to or lower than a predetermined temperature, the operation of the internal fan 15 is stopped. When it is determined that the temperature is equal to or higher than the predetermined temperature, the internal fan 15 is operated, and the cool air is supplied from the cold storage chamber 10 through the duct 14 to the cold storage chamber 11 by the internal fan 15.
Cooling is performed.

After that, the cold air returns to the cold storage chamber 10 again through the ventilation holes provided in the heat insulating partition wall 12, and the temperature in the cold storage chamber 11 is maintained at a predetermined temperature by repeating this cycle.

When the cool storage agent 9 further cools and the cool storage agent temperature detection detects a predetermined temperature, the compressor 5 is stopped and the freezing operation of the cool storage agent 9 is stopped. After the freezing operation is stopped, when the cold storage agent detection detects a predetermined temperature, the compressor 5 is operated and the freezing operation of the cold storage agent 9 is started again. By repeating this cycle, the temperature of the cold storage agent 9 is maintained at a predetermined temperature. The worker usually carries the transported article 16 into the cold storage chamber 11 when the cold storage chamber 11 is stable at a predetermined temperature.

After that, the commercial power source is turned off to load the cold storage into the transportation means such as a truck. When the commercial power source is turned off, the power supply source of the internal fan 15 is switched from the commercial power source to the rechargeable storage battery, and the operation of keeping the temperature of the cold storage chamber 11 at the predetermined temperature by using the latent heat of fusion of the cold storage agent 9 is continued.

In this state, the cool box is loaded on a transportation means such as a truck, and the goods 16 are loaded from the baggage accumulating base to the baggage accumulating base and transported while keeping the temperature of the cold room 11 at a predetermined temperature.

When the cargo is transported to the next baggage accumulating base, the inside of the cold storage compartment 11 is moved to another freezing cold storage, and the role of the cold storage ends.

As described above, according to this embodiment, by increasing the entrance height, arranging the ceiling structure in stages, and increasing the internal volume, the amount of fresh food or the like that needs to be kept cold increases, Unit stand 7 due to improved storage efficiency and integration
Strength can be increased.

Further, since the front side ceiling 22 is the outer case 3, the fall of the machine room 7a due to overturning is small, and the function deterioration can be prevented.

Further, since the top surface of the inner box 2 is inclined 22a, the transported goods 16 can be cooled efficiently.

(Embodiment 2) FIG. 2 is a sectional view of the essential parts of a machine room of a cool box in Embodiment 2 of the present invention.

The cool box main body 1 is formed by an inner box 2 and an outer box 3 made of stainless steel, and a heat insulating material 4 filled with foamed polyurethane resin between the boxes, and a front side ceiling 22 of the cool box main body 1 is provided. As the top surface of the outer casing 3 of the main body, the intermediate ceiling 23 is inclined 23a lower than the top surface, and the rear side ceiling 24 is formed lower than the intermediate portion. 5, the machine room 7a of the unit stand 7 that houses the condenser 6, the condenser fan 6a, etc. is installed. The outside air is sucked in through the top surface air intake port 17 in the middle portion, and the outside air is discharged through the rear side top surface and the back side rear panel 18. On the lower surface of the cool box body 1, there is a cool storage chamber 10 in which an evaporator 8 and a cold storage agent 9 fixed so as to sandwich a pipe forming the evaporator 8 are installed. The cool storage chamber 10 and transportation of food and the like. A heat insulation compartment wall 12 distinguishes the cold storage chamber 11 for keeping the product cool. On the front of the cool box body 1 is installed a heat insulating door 13 that can be opened and closed.
It is possible to put in and take out transported items.

A duct 14 communicating with the cold storage chamber is installed on the rear surface of the cool box body 1, and a fan 15 installed in the upper portion of the back surface sends air to the entire cool room 11. ing.

The operation will be described based on the above configuration. The operation is the same as in the first embodiment. Outside air is sucked in from the air inlet 17 on the top surface of the middle portion and passed through the condenser 6 for heat exchange, while the evaporator 8 exchanges heat with the cold storage agent 9 to store cold heat in the cold storage agent 9. The outside air that has passed through the machine room 7a is discharged through the cut-and-raised portion 18a of the rear surface of the top surface and the rear surface of the back panel 18.

As described above, according to this embodiment, since the air suction port 17 is the top surface, the performance is not affected even if the front surface is blocked by another machine or the like.

Further, from the front side ceiling 22 to the middle ceiling 23
Is inclined 23a, the introduction of outside air into the condenser 6 becomes efficient.

Further, since the outside air is discharged from the cut-and-raised part 18a of the rear panel 18 on the back side, the noise of the compressor 5 on the ceiling where the condenser 6, the condenser fan 6a and the like are installed can be reduced. It will be possible.

(Embodiment 3) FIG. 3 is a sectional view of the essential parts of the machine room of the cool box in Embodiment 3 of the present invention.
It is a side view .

The cool box body 1 is composed of an inner box 2 and an outer box 3 made of stainless steel, and a heat insulating material 4 filled with foamed polyurethane resin between the boxes, and the front side ceiling 22 of the cool box body 1 is As the top surface of the main body outer box 3, the intermediate ceiling 23 is formed lower than the top surface, and the rear side ceiling 24 is formed lower than the intermediate ceiling 23, and the compressor 5 is formed on the intermediate ceiling 23 and the rear side ceiling 24. A machine room 7a of an integrated unit base 7 for housing the condenser 6, the condenser fan 6a, etc. is installed. Bolts 19 fixed at the front and rear and in the middle of the machine room 7a of the unit stand, and a soundproof sheet 20 are provided under the machine room 7a of the unit stand 7. On the lower surface of the cool box body 1, there is a cool storage chamber 10 in which an evaporator 8 and a cold storage agent 9 fixed so as to sandwich a pipe forming the evaporator 8 are installed. The cool storage chamber 10 and transportation of food and the like. A heat insulation compartment wall 12 distinguishes the cold storage chamber 11 for keeping the product cool. A heat insulating door 13 that is openably and closably closed is installed on the front surface of the cool box body 1 so that a product to be transported can be taken in and out.

A duct 14 communicating with the cold storage chamber is installed on the rear surface of the cool box body 1, and a fan 15 installed on the upper part of the back surface sends air to the entire cool room 11. ing.

The operation will be described based on the above configuration. The operation is the same as in the first embodiment.

In order to reduce the vibration of the compressor 5 and the like stored in the machine room 7a of the unit base 7 during delivery of a truck or the like and keeping the inside of the body cool, the machine room 7a of the unit base 7 is provided with front and rear and intermediate positions. It is fixed with bolts 19. Further, a soundproof sheet 20 is provided below the machine room 7a of the unit base 7.

As described above, according to this embodiment, the condenser 6
And a unit base 7 on which the compressor 5 and the like are mounted and integrated, and a bolt 19 for fixing the unit base 7 in the front and rear and in the middle.
In addition, the soundproof sheet 20 is provided under the unit base 7, and vibration during delivery of a truck or the like and keeping the inside of the body cool is reduced, and reliability of functional parts on the unit base 7 can be improved. Become.

(Embodiment 4) FIG. 4 is a plan view of a machine room of a cool box according to Embodiment 4 of the present invention.

The cool box main body 1 is formed by an inner box 2 and an outer box 3 made of stainless steel, and a heat insulating material 4 filled with foamed polyurethane resin between the two boxes. As the top surface of the main body outer box 3, the intermediate ceiling 23 is formed lower than the top surface, and the rear side ceiling 24 is formed lower than the intermediate ceiling 23, and the compressor 5 is formed on the intermediate ceiling 23 and the rear side ceiling 24. A machine room 7a of an integrated unit base 7 for storing the condenser 6, the condenser fan 6a, etc. is installed. A soundproof material 21 is attached to the inner portion of the top surface. On the lower surface of the cool box body 1, there is a cool storage chamber 10 in which an evaporator 8 and a cold storage agent 9 fixed so as to sandwich a pipe forming the evaporator 8 are installed. The cool storage chamber 10 and transportation of food and the like. A heat insulation compartment wall 12 distinguishes the cold storage chamber 11 for keeping the product cool. A heat insulating door 13 that is openably and closably closed is installed on the front surface of the cool box body 1 so that a product to be transported can be taken in and out.

A duct 14 communicating with the cold storage chamber is installed on the rear surface of the cool box body 1, and a fan 15 installed at the upper part of the back surface sends air to the entire cool room 11. ing.

The operation will be described based on the above configuration. The operation is the same as in the first embodiment.

In order to reduce the noise of the compressor 5 and the like stored in the machine room 7a of the unit stand when the inside of the main body is kept cold, a soundproof material 21 is attached to the inside of the top surface.

As described above, according to the present embodiment, since the soundproof material 21 is attached to the inner portion of the top surface, the sound of the compressor 5 and the like on the ceiling where the condenser 6, the condenser fan 6a and the like are installed is suppressed. It becomes possible to reduce.

[0049]

INDUSTRIAL APPLICABILITY As described above, according to the present invention, the entrance height is widened, the ceiling structure is stepwise, and the internal volume is increased to increase the amount of fresh food or the like that needs to be kept cold, It is possible to increase the strength of the unit base by improving the storage work efficiency and integrating it.

Further, since the air suction port is the top surface, the performance is not affected even if the front surface is blocked by another machine or the like.

Further, since the front part is the outer case, the mechanical part is not affected by overturning, and the functional deterioration can be prevented.

Further, it is possible to reduce the noise of the compressor or the like on the ceiling where the condenser, the condenser fan and the like are installed.

Further, vibrations at the time of delivering a truck or the like and keeping the inside of the body cool are reduced, loosening of screws and bolts is prevented, and reliability of functional parts on the unit base can be improved. This is extremely advantageous in practical use in a cool box.

[Brief description of drawings]

FIG. 1 is a side sectional view of a cool box according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of essential parts of a machine room of a cool box according to a second embodiment of the present invention.

FIG. 3 is a cross-sectional view of a main part of a machine room of a cool box according to a third embodiment of the present invention.

FIG. 4 is a sectional view of essential parts of a machine room of a cool box in Example 4 of the present invention.

[Explanation of symbols]

1 Cooling box body 3 outer box 5 compressor 6 condenser 7 unit 7a Machine room 17 Air suction port 18 Back panel 18a Cut and raised part 19 Fixing bolt 20 Soundproof sheet 21 Soundproofing material 22 Front side ceiling 22a tilt 23 Middle ceiling 23a tilt 24 Rear side ceiling

─────────────────────────────────────────────────── --Continued from the front page (56) References JP-A-8-285437 (JP, A) JP-A-9-273855 (JP, A) JP-A-6-229660 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) F25D 11/00 101 F25D 19/00 550

Claims (3)

(57) [Claims] 1. A front side ceiling of a refrigerating cabinet main body is a top surface of an outer box of the main body, an intermediate ceiling is formed lower than the ceiling and a rear side ceiling is formed lower than the intermediate ceiling, and cooling is performed on the intermediate ceiling. A condenser, which is a component of the equipment, and a machine room of a unit stand, on which a compressor, which is also a component of the cooling equipment, is mounted on the rear side ceiling, and a unit room is stored and cooled.
In order to improve performance, the outside air is sucked in from the top air intake in the middle part.
Cooling that is carried in and discharged to the rear side top panel and rear back panel
And a cool box having a cut-and-raised back panel . 2. The cold insulation according to claim 1, further comprising a unit base on which a condenser, a compressor and the like are mounted, a bolt for fixing the unit base at the front and rear and in the middle, and a soundproof sheet under the unit base. Warehouse. 3. The front side ceiling of the cool box body is the top surface of the outer box of the body.
And the middle ceiling is lower than the top surface, and the rear side ceiling is the middle ceiling.
Each is formed lower than the well, and a cooler is installed above the middle ceiling.
The condenser, which is a component of the vessel, is the same on the rear side ceiling.
The compressor, which is a component of the cooling device, is installed and integrated.
A machine room of the unit stand, a cooling device that sucks outside air from the top surface of the middle part and discharges it to the rear side top surface and the back side back panel, and a cool box with soundproof material attached to the inside of the top surface.