JPH07329557A - Cold accumulating unit - Google Patents

Abstract

PURPOSE:To form a cold reserving space by partitioning off a part of a cold accumulating panel so as to be able to refrigerate canned juice or the like in the cold reserving space in a device for cooling a nap compartment in the vehicle interior by the cold accumulating panel. CONSTITUTION:When cooling load is reduced during the night, refrigerant having passed a condenser and an expansion valve after being discharged from a compressor is made flow through cold accumulating evaporators (heat transfer tubes) 1. Cold accumulating material 2 in a cold accumulating panel 3 is thereby cooled and phase-changed into a solid to accumulate cold. When a driver takes a nap in a nap compartment, the air in the vehicle interior is cooled by radiation from the cold accumulating panel 3 and made flow out from an outflow port 6 to perform cooling. In this case, a cold reserving space 43 with the front face opened is formed at a part of the cold accumulating panel 3, and the heat transfer tubes 1 are laid in such a way as to meander in the part excluding the cold reserving space 43. A cold accumulating pack 45 is removably charged into the cold reserving space 43. At the time of removing this cold accumulating pack 45, canned juice or the like is put in the cold reserving space 43 for refrigeration.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle cold storage unit for cooling a nap room.

[0002]

2. Description of the Related Art One example of a conventional vehicle cooling device is shown in FIG. A main cooling unit A having a main air conditioner evaporator 25, a blower 26, etc. is installed below the instrument panel 53, and a cold storage evaporator 29 and a cool storage material are provided in a nap room 51 formed in the rear part of the passenger compartment 50. A cold storage unit B having 28 etc. is installed.

A clutch 20 from a running engine (not shown)
The compressor 21 is driven through the compressor 21, and the refrigerant discharged from the compressor 21 enters the condenser 22 where it radiates heat to the outside to be condensed and liquefied. The liquid refrigerant is branched through the receiver 23, most of which is adiabatically expanded by the expansion valve 24, evaporated by cooling the vehicle interior air by the main air conditioning evaporator 25, and then compressed through the pressure control valve 17. Return to machine 21.

The branched residue is adiabatically expanded by the expansion valve 27, and then evaporated by cooling the regenerator material 28 around it by the regenerator evaporator 29, and merges with the refrigerant flowing out from the pressure regulating valve 17 to form a compressor. Inhaled on 21.

By adjusting the set pressure of the pressure adjusting valve 17, the amount of refrigerant flowing into the cold storage evaporator 29 is adjusted. In FIG. 6, 52 is a curtain, 54 is a nap bed,
56 is a drain pan and 57 is a drain hose.

[0006]

The above-mentioned conventional cold storage unit B can only perform the cooling function of the nap chamber 51. Therefore, in order to refrigerate canned juice or the like, it is necessary to separately install a cool box or the like in the passenger compartment 50. was there.

[0007]

SUMMARY OF THE INVENTION The present invention has been invented to solve the above problems, and its gist is to provide a cold storage evaporator and a cold storage panel having a built-in cold storage material for a vehicle. In a vehicle cold storage unit that cools a nap room in a room, a cold storage space is formed by partitioning a part of the cold storage panel.

A regenerator pack containing the regenerator material can be removably loaded in the cool space.

The cold storage space can be provided on the foot side of a person who is taking a nap in the nap room.

[0010]

In the present invention, by storing canned juice or the like in the cold storage space of the cold storage panel, it can be refrigerated.
Further, if a cold storage pack is loaded in the cold storage space to store the cold, the cold heat can be taken out from the cold storage space and used for other purposes.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT One embodiment of the present invention is shown in FIGS. In FIG. 1, 3 is a rectangular plate-shaped cold storage panel,
A heat transfer tube 1 and a regenerator material 2 constituting an evaporator for regenerator are built in a container 46 made of alumite or the like. The cold storage panel 3 is covered with a case 4, a slit-like indoor air intake 5 is provided substantially horizontally in the upper portion of the front plate 4a of the case 4, and is provided in the lower portion with substantially the entire width. A horizontally long cold air flow outlet 6 is provided that extends horizontally across.

A louver 7 for opening and closing the cold air outlet 6 is provided so as to be rotatable around a horizontal axis 8.
An opening 40 is formed on the left side of the front plate 4a of the case 4, that is, on the bed G at the foot side of the driver J who is taking a nap, and the opening 40 is opened and closed by a lid 41.

On the left side of the front surface of the cold storage panel 3, as shown in FIG.
As shown in (D), the cold storage space 43 is formed so as to face the opening 40 by partitioning this part. Then, the heat transfer tube 1 is laid so as to meander in a portion excluding the cold storage space 43. A cool storage pack 45 formed by filling a cool storage material 2 in a container 44 is detachably loaded in the cool storage space 23, and the cool storage pack 45 is locked in the cool storage space 43 by a locking means (not shown). In FIG. 1, 9 is a drain pan, 10 is a drain hose, 11 is a heat insulating material,
12 is a mounting plate.

Regenerator unit A constructed in this way
As shown in FIG. 2, is installed substantially horizontally in the middle part of the rear wall H of the nap room C formed in the rear part of the passenger compartment B of the truck. In FIG. 2, D is the curtain, E is the driver's seat,
F is a steering wheel and G is a nap bed.

FIG. 3 shows a refrigerant circuit. Compressor via clutch 30 by a running engine (not shown)
31 is driven, and the gas refrigerant discharged from the compressor 31 is condensed in the condenser 32. The liquid refrigerant is branched through the receiver 33, most of which is adiabatically expanded by the expansion valve 34 and evaporated by cooling the air inside the vehicle compartment by the main air conditioning evaporator 35, and then passes through the pressure regulating valve 39 to the compressor. Return to 31.

The remaining branch is adiabatically expanded by the capillary tube 37 through the electromagnetic opening / closing valve 36, evaporated by cooling the regenerator material 2 by the regenerator 1 and then merged with the refrigerant flowing out from the pressure regulating valve 39. And is sucked into the compressor 31.

The amount of refrigerant flowing into the cold storage evaporator 1 is adjusted by adjusting the set pressure of the pressure adjusting valve 39. When the electromagnetic opening / closing valve 36 is closed, the refrigerant does not flow into the cold storage evaporator 1.

However, when the cooling load during summer daytime is large, the electromagnetic on-off valve 36 is closed, and the entire amount of the refrigerant discharged from the compressor 31 flows through the main air-conditioning evaporator 32. The air inside the vehicle compartment is cooled by the evaporator 32 for air conditioning.

When the night-time cooling load becomes small, the electromagnetic storage valve 36 is opened to perform the cold storage operation. During this cold storage operation, the refrigerant flows through the main air conditioning evaporator 32 and the cold storage evaporator 1. Then, the cold storage material 2 is cooled by exchanging heat with the refrigerant flowing through the cold storage evaporator 1 to be cooled and undergo a phase change to become a solid, thereby storing cold heat. At this time,
Since the cold airflow outlet 6 of the case 4 is closed by the louver 7, the room air does not flow through the case 4, and therefore the cool storage panel 3 is not allowed to cool.

The driver parks the truck in the early morning and the driver takes a nap C
When taking a nap inside, the cooling operation is performed. During this cooling operation, the engine is stopped. The cold air flow outlet 6 is opened by opening the louver 7. Then, the vehicle compartment air enters the case 4 through the air intake port 5 and is cooled by heat transfer and radiation from the cool storage panel 3 in the process of descending along the cool storage panel 3 to become cool air.

This cold air flows out from the cold airflow outlet 6 into the nap chamber C by natural convection to cool the nap chamber C and suppress its temperature rise for a certain time (for example, 2 hours). By this cooling, the cold storage material 2 undergoes a phase change and returns to a gel state.

During this cooling operation, the water in the room air condensed on the surface of the cold storage panel 3 becomes a drain, and the drain pan 9
It is dropped inside and discharged through the drain hose 10.

When the cold storage pack 45 is loaded in the cold storage space 23 and the cold storage operation is performed, the cold storage material 2 in the cold storage pack 45 is also cooled by the cold storage evaporator 1.

When the driver takes a nap, the lid 41 is opened, the cold storage pack 45 is detached from the cold storage space 23 and taken out from the opening 20, and then the lid 41 is closed. Then, the cool air is the cold air flow outlet 6
Flows out toward the driver J who is sleeping in the bed G, but since the cold storage pack 45 has already been taken out, the temperature of the cold air blown to the feet of the driver J is higher than that of the head, so-called head cold foot heat. In this state, the comfort level of the driver J is improved.

At this time, if the cold storage pack 45 taken out from the cold storage space 23 is placed on the right side of the driver J, the right side of the driver J can also be cooled by the cold air cooled by the cold storage pack 45, and the cold storage pack 45 can be If you put it under your head, you can use it as a pillow and keep your head cool.

If a plurality of holes 47 into which juice cans can be inserted are formed between the heat transfer tubes 1 of the cold storage panel 3 as shown in FIG. It is possible to blow cold air having a substantially equal temperature over the entire area.

Further, as shown in FIG. 5, if the object to be refrigerated 48 such as a juice can is stored in the cold storage space 43 instead of the cold storage pack 45, it can be refrigerated. It is desirable that the space 43 can be opened and closed by the lid 49.

[0028]

According to the present invention, if canned juice or the like is stored in the cold storage space formed by partitioning a part of the cold storage panel, it can be refrigerated. Further, if a cold storage pack is loaded in the cold storage space to store the cold, the cold heat can be taken out from the cold storage space and used for other purposes.

If the cold storage space is provided at the foot side of the person who is taking a nap in the nap room, the driver during the nap can be cooled to the heat of the head and feet.

[Brief description of drawings]

1 shows a first embodiment of the present invention, (A) is an external perspective view of a cold storage unit, (B) is a front view of a cold storage panel, (C) is a vertical cross-sectional view of the cold storage unit, (D). FIG. 3 is a perspective view showing a cold storage panel partially broken away.

FIG. 2 is a schematic side view showing an installation procedure of the cold storage unit according to the first embodiment.

FIG. 3 is a refrigerant circuit diagram of the first embodiment.

FIG. 4 is a front view of a cold storage panel according to a second embodiment of the present invention.

FIG. 5 is a partially cutaway perspective view showing a cold storage panel according to a third embodiment of the present invention.

FIG. 6 is a refrigerant circuit diagram of a conventional vehicle cooling device.

[Explanation of symbols]

 A cold storage unit 3 cold storage panel 1 evaporator for cold storage 2 cold storage material C nap room 43 cold storage space 45 cold storage pack

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display area F25B 5/02 B F28D 20/02

Claims (3)

[Claims] 1. A cold storage unit for a vehicle, comprising a cold storage evaporator and a cold storage panel having a built-in cold storage material, for cooling a nap room in a vehicle compartment, wherein a cold storage space is formed by partitioning a part of the cold storage panel. A cold storage unit for a vehicle, which is characterized in that 2. A regenerator unit for a vehicle according to claim 1, wherein a regenerator pack containing the regenerator material is detachably loaded in the cold insulation space. 3. The cold storage unit for a vehicle according to claim 1, wherein the cold storage space is provided on a foot side of a person who is taking a nap in the nap room.