JP2003335125A - Cooler for catnapping - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cooler for catnapping capable of effectively utilizing a catnapping space 13 and uniformly supplying cool wind to a catnapper A. <P>SOLUTION: This cooler for catnapping comprises a catnapping space 13 for allowing a person to have a catnap, a bed for catnapping 14 installed in the catnapping space 13, and a cooling unit for supplying the cooled air into the catnapping space 13, and the cooling unit 14 is mounted under the bed for catnapping 14. Thereby the cool air can be uniformly supplied to the catnapper A while effectively utilizing the catnapping space. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nap cooling device for providing a cooling environment to a person resting on a bed, and more particularly to a cooling device for cooling a nap space of a vehicle (for example, a truck). It is suitable for use.

[0002]

2. Description of the Related Art In recent years, in vehicles such as long-distance trucks,
In order to save space in the cabin (driver's cab), some people have provided a nap space for resting on the ceiling above the driver's seat. 4 and 5 show such a driver's seat 12
FIG. 6 is a cross-sectional view of a truck driver's seat having a nap space 13 at the upper part of FIG. 4, and FIGS. 4 and 5 each show a conventional method for cooling the nap space 13 in such a vehicle.

First, in the method shown in FIG. 4, a nap space 1
In the case of entering 3, the cold air outlet of the air conditioning unit 7 for air conditioning the inside of the operator's cab 12, which is arranged in the lower part of the instrument panel in front of the operator's cab 12, is connected to the nap space 13 by the ventilation duct D, and the air conditioning unit is connected. The cold air from 7 is supplied to the nap space 13. Moreover, in the method shown in FIG.
A cold storage cooler unit 8 is installed in the corner of 2 to supply cold air to the nap space 13. The cold storage cooler unit 8 is internally provided with a cold storage cooler and a blower.

Further, the regenerator cooler is composed of a refrigerant evaporator provided in a vehicle air-conditioning refrigeration cycle and a regenerator material which is stored in the evaporator, and the regenerator material is used by the refrigerant evaporator during traveling of the truck. When the truck is stopped and the driver takes a nap in the nap space when the truck is stopped, the blower is operated to blow air to the air flow path of the cool storage material, and between the cool storage material and the blown air. Is used to cool the blown air and blow the cooled air into the nap space from the outlet. Incidentally, 14 in both figures is a bed for a nap, and A represents an occupant resting.

[0005]

However, all of the above-mentioned conventional methods have a problem in that the cold air is not uniformly supplied to the lying resting person. Further, in the former method of supplying the cool air from the air conditioning unit to the nap space with the ventilation duct, the engine of the vehicle must be operated in the idling state in order to circulate the refrigeration cycle during the nap, and fuel is consumed. It is a problem from the viewpoint of energy saving and environmental problems in that it consumes engine noise and emits exhaust gas.

The latter method of supplying cold air from the cold storage cooler unit to the nap space is good from the viewpoint of energy saving and environmental problems, but has a problem of narrowing the cab. The present invention has been made in view of the above-mentioned problems of the conventional method, and an object thereof is to effectively use a nap space and also to supply a cool air to a rest person uniformly. To provide.

[0007]

In order to achieve the above object, the technical means described in claims 1 to 5 is adopted. That is, in the invention according to claim 1, a nap space (13) for a person to take a nap, a nap bed (14) installed in the nap space (13), and a nap space (13) are provided. A cooling means (15) for supplying cooled air is provided, and the cooling means (15) is arranged below the nap bed (14). This makes it possible to effectively use the nap space (13).

In the invention described in claim 2, the cooling means (1
The air cooled in 5) is blown out from around the nap bed (14). As a result, it is possible to create a cooling zone in which a lying rest person is wrapped with a slight cold air.

According to the invention of claim 3, the cooling means (1
Air outlets (G1 to 7) that blow out the air cooled in 5)
Is characterized by changing the size depending on the installation location. As a result, even if the position where the cool air is blown out from the cooling means (15) is biased and the ventilation resistances to the air outlets (G1 to 7) are different, it is laid horizontally on the nap bed (14). For those who are resting, each outlet (G1-
Cold air can be blown out uniformly from 7).

According to the invention of claim 4, the cooling means (1
5) is characterized by comprising a cold storage means (17). As a result, when the nap cooling device of the present invention is applied to a vehicle, it is possible to stop the engine of the vehicle to cool during a nap, and there is no problem from the viewpoint of energy saving and environmental problems.

According to a fifth aspect of the present invention, the nap cooling device according to any one of the first to fourth aspects is provided.
It is characterized by being used for cooling when a passenger takes a nap in a nap space (13) of a vehicle such as a long-distance truck. As a result, the space in the cabin (driver's cab) can be effectively used, and a uniform cooling zone can be provided to the passengers resting on the nap bed (14). still,
The reference numerals in parentheses of the above-mentioned means are examples showing the correspondence with the concrete means described in the embodiments described later.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of a truck driver's seat 12 according to an embodiment of the present invention, which is an example in which the present invention is applied to a nap cooling device for cooling a nap space 13 of a truck. A nap space 13 is formed behind the ceiling above the cab 12, and the nap space 13 and the cab 12 are partitioned by a ceiling plate 12a. Further, in the nap space 13, a cooling unit 15 as a cooling unit having a bed 14 formed on the upper surface is installed on the ceiling plate 12a. By the way, A is bed 14
It is a crew member who takes a nap above.

FIG. 2 is a block diagram of a refrigeration cycle according to an embodiment of the present invention. Reference numeral 1 is a compressor, which is an electromagnetic clutch 1 driven by a truck running engine (not shown).
It is designed to be driven via a. 2 is compressor 1
A condenser for cooling and condensing the high-temperature, high-pressure gas refrigerant discharged from the condenser 3 is a liquid receiver for accumulating the liquid refrigerant condensed by the condenser 2 and discharging only the liquid refrigerant. Reference numeral 4 is a normally-open solenoid valve for intermittently flowing the refrigerant flow, 5 is a temperature-operated expansion valve as a pressure reducing means for decompressing and expanding the liquid refrigerant, and 5a is a temperature sensitive cylinder thereof.

Reference numeral 6 is a refrigerant evaporator, which is a cab 12 of the truck.
The inside is air-conditioned, and is installed in the air conditioning unit 7 (not shown in FIG. 1, not shown in FIG. 2, broken line portion in FIG. 2) disposed in the lower part of the instrument panel in front of the cab 12 together with the expansion valve 5. . Air is blown into the air conditioning unit 7 by a blower (not shown), and the blown air is cooled by the evaporator 6,
Operator's cab 1 via a heater unit and an outlet mechanism (not shown)
It is designed to blow out into 2.

Reference numeral 7a designates the equipment (5, 6) for air conditioning of the cab.
In the refrigerant circuit for air conditioning, the solenoid valve 4 interrupts the refrigerant flow to the refrigerant circuit for air conditioning 7a. Reference numeral 8a denotes a cold storage refrigerant circuit provided in parallel with the air conditioning refrigerant circuit 7a.
Reference numeral 9 denotes a constant pressure expansion valve as a pressure reducing means for decompressing and expanding the liquid refrigerant flowing into the cold storage refrigerant circuit 8a, which opens when its downstream side falls below a predetermined pressure.

Reference numeral 10 denotes a cold-storage refrigerant evaporator, which is for cold storage for cooling a nap space 13 installed above the driver's cab 12 above the ceiling. 11 is a check valve,
The high-temperature refrigerant is prevented from flowing backward from the air conditioning evaporator 6 side to the cold storage evaporator 10, and the refrigerant is allowed to flow in only one direction from the upstream side to the downstream side of the cold storage evaporator 10. The constant pressure expansion valve 9, the cold storage refrigerant evaporator 10 and the check valve 11 and the blower 10a that blows air to the cold storage refrigerant evaporator 10 constitute a cooler unit 8 (a chain line in FIG. 2). .

FIG. 3 is a perspective view showing the structure of the cooling unit 15 in one embodiment of the present invention. The cooling unit 15 has a horizontally long rectangular parallelepiped shape as shown in FIG.
A nap bed 14 is formed on the upper surface of a. The housing 15b is formed with sufficient strength even if a person rides on it, and the air in the nap space 13 is sucked into one short side surface (the foot side of the bed 14 in FIG. 3) of the housing 15b. A suction port 16 is provided.

The cooler unit 8 is housed in the central portion of the housing 17b connected to the suction port 16. Inside the cooler unit 8, the refrigerant evaporator 10 for cold storage and the blower 10a described above are built-in, and although not shown, the evaporator 10 formed by bending a multi-hole flat tube made of aluminum in a meandering shape. Between each tube,
A cold storage pack 17 as a cold storage means having water or a soft gel-like cold storage material stored therein and an air passage formed on the outer surface is inserted. The evaporator 10 serves as cooling means for cooling the cold storage pack 17.

On the surface of the cooler unit 8 opposite to the suction port 16 side, there is formed an air outlet 18 for blowing out cool air cooled through the air passage of the cold storage pack 17. Then, the cold air blown out from the air outlet 18 uses the space between the outer surface of the cooler unit 8 and the inner surface of the housing 15b as an air passage, and each lattice-shaped blowing grille provided in the housing 15b and the lid 15a ( The air is blown from the blowout ports G1 to 7 toward the periphery of the bed 14.

These blowout grills G1 to G7 are provided at the blowout port 1
The one close to 8 is formed with a small opening area, and the outlet 18
Those far away from are formed with a large opening area. In addition, louvers are provided on the outlet grills G1 to G7,
The blowing direction can be adjusted for each blowing grill, and the blowing can be closed.

Next, the operation of this embodiment having the above-mentioned structure will be described. When an air conditioner switch (not shown) is turned on while the truck is running (the engine is operating), the electromagnetic clutch 1a is energized, the compressor 1 is connected to the vehicle engine via the electromagnetic clutch 1a, and the compressor 1 is driven by the engine. ,Operate.

By the operation of the compressor 1, the refrigerant circulates in the refrigeration cycle of FIG. That is, since the electromagnetic valve 4 is a normally open type, the refrigerant circulates through the electromagnetic valve 4 to the air conditioning refrigerant circuit 7a, and the air blower of the air blower of the air conditioning unit 7 cools and dehumidifies in the air conditioning evaporator 6. The truck cab 12
Air conditioning. At this time, the constant pressure expansion valve 9 of the cold storage refrigerant circuit 8a has a downstream pressure of a predetermined pressure (for example, the refrigerant R134a).
In the case of, 1.0 Kg / cm ² , evaporation temperature: -10 ° C)
Since it does not drop below, keep the valve closed.

When a cold storage switch (not shown) is turned on while the truck is traveling, the solenoid valve control circuit is started, and an energization signal is input from the control circuit to the solenoid valve 4 at predetermined time intervals, so that the solenoid valve 4 is operated in a predetermined manner. It closes for a short time at each time interval. Then, since the refrigerant to the air-conditioning refrigerant circuit 7a is shut off, the refrigerant suction action of the compressor 1 causes the pressure in the cold-storage refrigerant circuit 8a to rapidly decrease to the predetermined pressure or less,
The constant pressure expansion valve 9 opens. Since the constant pressure expansion valve 9 is opened intermittently only for a short time, the influence on the cooling action of the air conditioning evaporator 6 is extremely small.

The cold storage evaporator 10 serves to cool the cold storage pack 17 by supplying the refrigerant by intermittently opening the constant pressure expansion valve 9, thereby freezing the cold storage material (water or the like) in the cold storage pack 17 to store the cold. Keep it. On the other hand, when the driver or the like takes a nap in the nap space 13 during truck parking, the blower 1 provided on the control panel for cooling the nap space (not shown)
The speed control lever of 0a is operated to operate the blower 10a by using the vehicle-mounted battery as a power source.

Then, the blown air flows in the case 17b of the cooling unit 15 along the path shown by the arrow in FIG. 3, and when the blown air passes through the air flow path between the cool storage pack 17 and the evaporator 10, the cool storage pack. The heat is exchanged with 17 to be cooled and becomes cold air, and blows out from the blowout grills G1 to 7 into the nap space 13 through the air flow path in the housing 17b to cool the nap space 13. Then, until the cool storage material in the cool storage pack 17 is completely melted and the temperature rises, the nap space 13 can be cooled during parking.

Next, the features of this embodiment will be described. Nap space 13 for people to take a nap, and nap space 1
A nap bed 14 installed in 3 and a nap space 1
A cooling unit 15 for supplying cooled air is provided in the inside of the air conditioner 3, and the cooling unit 15 is arranged under the nap bed 14. Thereby, the nap space 13 can be used effectively.

Further, the air cooled by the cooling unit 15 is blown out from around the nap bed 14. As a result, it is possible to create a cooling zone in which the lying rest A is wrapped with the cold air. The size of the blowout grills G1 to G7 that blow out the air cooled by the cooling unit 15 is changed depending on the installation location.

As a result, the position where the cool air is blown out from the cooling unit 15 is biased, and the blowout grills G1 to G7 are uneven.
Even if the ventilation resistances up to are different, the cold air can be blown out uniformly from the blowing grilles G1 to 7 to the rest A lying on the bed 14 for nap.

In addition, the cooling unit 15 is a cold storage pack 17
Is equipped with. As a result, when the nap cooling device of the present invention is applied to a vehicle, it is possible to stop the engine of the vehicle to cool during a nap, and there is no problem from the viewpoint of energy saving and environmental problems. Further, this nap cooling device is used for cooling when a passenger takes a nap in the nap space 13 of a vehicle such as a long-distance truck. As a result, the space in the cabin (driver's cab) can be used effectively, and a uniform cooling zone can be provided for the occupant A who rests on the nap bed 14.

(Other Embodiments) In the above-mentioned embodiment, the present invention is applied to a vehicle having a nap space 13 above the driver's seat 12, but the present invention is not limited to this. The present invention may be applied to a vehicle or the like provided with the nap space 13.

[Brief description of drawings]

FIG. 1 is a sectional view of a truck driver's seat according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a refrigeration cycle according to an embodiment of the present invention.

FIG. 3 is a perspective view showing the structure of the cooling unit according to the embodiment of the present invention.

FIG. 4 is a sectional view of a conventional truck driver's seat.

FIG. 5 is a sectional view of a conventional truck driver's seat.

[Explanation of symbols]

13 Nap space 14 nap bed 15 Cooling unit (cooling means) 17 Cold storage pack (cold storage means) G1-7 Blowout grill (outlet)

Claims (5)

[Claims] 1. A nap space (1) for a person to take a nap
3), a nap bed (14) installed in the nap space (13), and a cooling means (15) for supplying cooled air to the nap space (13). 15) is arranged under the bed for nap (14), The cooling apparatus for nap characterized by the above-mentioned. 2. The nap cooling device according to claim 1, wherein the air cooled by the cooling means (15) is blown out from around the nap bed (14). 3. The nap according to claim 1, wherein the outlets (G1 to 7) for blowing out the air cooled by the cooling means (15) are changed in size depending on the installation location. Air conditioner. 4. The cooling means (15) is a cold storage means (1).
7) is provided.
The nap cooling device according to any one of 1. 5. The cooling device for nap according to claim 1 is used for cooling when a passenger takes a nap in a nap space (13) of a vehicle such as a long-distance truck. A nap cooling device characterized by the above.