JPH08169229A - Cooling device for vehicle - Google Patents

Abstract

PURPOSE: To cool a napping person in a napping room at parking time with a comfortable feeling. CONSTITUTION: A cooling unit 5 is installed on a side wall 10 on one end side in the vehicle width direction in a napping room 3, and above thereof a supply opening 7 opened toward a side wall 14 on the other end side in the vehicle width direction is provided. Accordingly, cool air from the supply opening 7 can be brought in the vicinity of a head of a napping person A to effectively cool the upper half of the body of the napping person A. On the other hand, since a suction opening 6 is equipped in a lower part of the cooling unit 5, an air current from the upper half of the body of the person A through the lower half of the body thereof toward the suction opening 6 can be generated. Consequently, since the upper half of the body of the person A can be effectively cooled and a current of the cool air can be uniformly applied to the whole body from the upper half to the lower half, a comfortable cooling feeling can be imparted to the napping person A.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a vehicle (for example, a truck).
The present invention relates to a vehicle cooling device for cooling a nap room.

[0002]

2. Description of the Related Art Conventionally, as a cooling device for cooling a nap room of a vehicle, a device described in Japanese Patent Laid-Open No. 62-149509 is known. As shown in FIGS. A nap room 3 partitioned by a partition member 2 such as a curtain is formed behind the cab 1 of the truck, and a nap bed 4 is arranged in the nap room 3.

A cooling unit 5 is provided on the rear wall surface of the nap room 3.
The cooling unit 5 has a suction port 6 at its lower part.
In addition, a blowout port 7 is provided in the upper part, and a regenerative cooler 8 and a blower 9 are provided inside thereof. The regenerator 8 is composed of a refrigerant evaporator provided in a vehicle air conditioning refrigeration cycle and a regenerator material that is regenerated by the evaporator. The regenerator 8 cools the regenerator material while the truck is running. The cool storage material is frozen, and when the driver takes a nap in the nap room when the truck is stopped, the blower 9 is operated to blow air to the ventilation passage of the cool storage material, and the cool storage material and the blown air are blown. Heat is exchanged between them to cool the blown air, and the cooled air is blown out into the nap chamber 3 from the air outlet 7.

[0004]

However, in the above-mentioned conventional apparatus, the blowout port 7 is provided above the cooling unit 5 disposed on the wall surface at the rear of the nap chamber 3, and cool air is blown from the blowout port 7 to the nap chamber 3. Since the structure blows out inside, the occupant who is taking a nap on the bed 4 is not exposed to the cool air, and a comfortable cooling feeling cannot be provided.

That is, since the nap chamber 3 is generally elongated in the vehicle width direction (having a length of about 2 m in the vehicle width direction), as shown in FIG. 8, from the air outlet 7 above the cooling unit 5. The cold air blown out only reaches a partial area on the bed 4, and an area X where the cold air does not reach is generated, and the generation of the area X makes it impossible to give a good cooling feeling to a nap person. was there.

The present invention has been made in view of the above points,
An object of the present invention is to provide a vehicle cooling device that can improve the form of cool air blowing and provide a good cooling feeling to a nap person.

[0007]

The present invention employs the following technical means in order to achieve the above object. In the invention according to claim 1, in a vehicle having a nap room (3) for an occupant to take a nap, a cooling unit (5) having a cooling means (54, 55) and a blowing means (9) is provided in the nap room. A suction port (6) for sucking the air in the nap chamber (3) is provided on the side wall (10) of the vehicle width direction at one end of the cooling unit (3) and below the cooling unit (5). The cold air cooled by the cooling means (54, 55) is provided above the cooling unit (5) and the nap chamber (3).
The vehicle cooling device is provided with an outlet (7) that blows out toward the side wall (14) on the other end side in the vehicle width direction.

According to a second aspect of the present invention, in the vehicle cooling apparatus according to the first aspect, in the nap chamber (3), a lower portion of the side wall (10) at one end side in the vehicle width direction is provided.
A mounting base (11) having a space (11a) of a size capable of inserting the bed end and the tip of the foot of a nap person is arranged, and the cooling unit (5) is provided on the mounting base (11). It is characterized by being arranged.

According to a third aspect of the invention, in the vehicle cooling system according to the first or second aspect, the suction port (6) is provided.
Is formed over substantially the entire area in the front width direction of the cooling unit (5), and the outlet (7) is a narrow range of about 1/3 in the front width direction of the cooling unit (5). It is characterized in that it is formed only in.

According to a fourth aspect of the present invention, in the vehicle cooling apparatus according to any one of the first to third aspects, the cooling means has a cold storage material (55) having a cold storage function, and the cold storage material (55). 55) and a cooler (54) for storing cold when the vehicle is traveling. The reference numerals in parentheses of the above means indicate the corresponding relationship with the specific means described in the embodiments described later.

[0011]

According to the inventions of claims 1 to 4,
The cooling unit is installed on the side wall on one end side in the vehicle width direction in the nap room, and the air outlet opening to the side wall on the other end side in the vehicle width direction is provided on the upper side of the cooling unit. Can be blown toward the side wall on the other end side in the vehicle width direction to allow cool air to reach near the head of the nap person, and the upper half of the nap person can be effectively cooled.

Since the suction port is provided in the lower portion of the cooling unit, an air flow can be generated from the upper half of the body of the nap person through the lower half of the body toward the suction port. Therefore,
The upper body of the nap person can be effectively cooled, and the flow of cool air can be uniformly applied to the whole body from the upper body to the lower body, so that the nap person can be provided with a comfortable cooling feeling.

According to the second aspect of the present invention, a mounting base having a space large enough to insert the bed end and the tip of the foot of the nap person is disposed below the side wall on the one end side in the vehicle width direction. However, since the cooling unit is installed on the upper part of this mounting base, when installing the cooling unit in the nap room, it is possible to install the cooling unit without reducing the bed installation space. A comfortable cooling feeling can be realized without deteriorating the performance.

According to the third aspect of the present invention, the suction port is formed over substantially the entire area in the front width direction of the cooling unit, so that room air is sucked in from substantially the entire area in the front width direction of the cooling unit for cooling. The heat exchange area with the means can be expanded to improve the cooling performance. Further, since the air outlets are formed only in a narrow range of about 1/3 of the width direction of the front surface of the cooling unit, the opening area of the air outlets is narrowed to increase the blowing speed of the cold air to cool the air. It is possible to sufficiently reach the vicinity of the side wall on the other end side in the vehicle width direction (the head of the nap person).

[0015]

Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIGS. 1 to 5 show an example in which the present invention is applied to a cold storage type cooling device for a nap room for a truck. In FIG. 1, a bed 4 is arranged behind a driver's cab 1 of the truck. A nap room 3 is formed. In this nap room 3,
The cooling unit 5 is arranged on the side wall 10 on one end side in the vehicle width direction.

As shown in FIGS. 2 and 3, this cooling unit 5 has a case 51 formed in a vertically long and thin rectangular parallelepiped shape, and the air in the nap chamber 3 is sucked into the lower part of the case 51. A suction port 6 is provided. This suction port 6
As shown in FIG. 2, it is composed of a large number of small holes, and these holes are formed over substantially the entire area of the cooling unit 5 in the front width direction.

A lattice-shaped outlet 7 is provided in the upper portion of the case 51 to blow cold air toward the side wall 14 (see FIG. 5) on the other end side in the vehicle width direction. This outlet 7
Is approximately ⅓ in the width direction of the front surface of the cooling unit 5 in order to ensure a blowing air velocity at which cold air can reach the head of the napper A.
It is formed only in a narrow range to narrow the opening area.

An air passage 52 communicating with the air outlet 7 is formed in an upper portion inside the case 51. A centrifugal blower 9 driven by a motor (not shown) is arranged so as to be located in the air flow path 52. A chamber 53 for installing a cooler is defined in a lower portion of the air flow path 52, and a refrigerant evaporator 54 and a cool storage pack 55 are installed in the chamber 53.

Here, the evaporator 54 is constructed by using a multi-hole flat tube made of aluminum in this example. This multi-hole flat tube has a width L (see FIG. 3) of the cold storage pack 55.
(See) and has a flat cross section with the same width as
As is well known, a large number of holes for refrigerant passages are formed in parallel. The flat tube has bent portions at the upper and lower ends of FIGS. 2 and 3, and is formed so as to meander in the vertical (up and down) direction.

A cold storage material pack 55 is disposed so as to be in close contact with the left and right side surfaces of the flat tube of the refrigerant evaporator 54. As shown in the drawing, the cold storage material pack 55 is formed in a vertically elongated concave-convex shape, and water or a soft gel-like cold storage material is stored inside a thin-walled pack-shaped (bag-shaped) member formed of resin. It is enclosed. Further, as the material of the pack 22, a material that is easily thinned, such as nylon or polyethylene, is preferable in order to improve the heat exchange property with the blown air. In FIG. 2, reference numeral 56 denotes an air passage formed between the uneven cool storage pack 55 and the flat tube of the refrigerant evaporator 54. The arrow a in FIG. 3 indicates this ventilation path 5.
6 shows the flow of air through 6.

Reference numeral 57 denotes an upper part of the chamber 53, which is a communication port provided at a rear wall surface side of the case 51, and connects the upper part of the chamber 53 to the suction side of the blower 9. The evaporator 54 and the cold storage pack 55 that constitute the cooler are installed in substantially the entire width direction of the case 51 (the left-right direction in FIG. 2), but the suction port 6 is also substantially in the width direction of the case 51 as described above. Since it is installed in the entire area, the intake air uniformly flows into the ventilation passage 56, and heat is exchanged with the cold storage material pack 55 in substantially the entire width direction of the case 51, so that the heat exchange area can be increased. it can.

The evaporator 54 is disclosed in JP-A-62-1495.
Like the device described in Japanese Patent Publication No. 09, the refrigerant is circulated to the evaporator 54 by a compressor that is installed in the air conditioning refrigeration cycle of the truck cab 1 and is driven by a truck running engine (not shown). The cold storage pack 55 is cooled by the latent heat of vaporization of the refrigerant to perform cold storage in the cold storage material.

A control panel 58 for cooling the nap room is provided on the upper front surface of the case 51 so as to be adjacent to the side of the air outlet 7.
The control panel 58 is provided with an operation lever of a speed control switch of the blower 9 and the like. Figure 4,
Reference numeral 5 shows a concrete installation mode of the cooling unit 5 in the nap chamber 3. The mounting base 11 is arranged adjacent to the lower portion of the side wall 10 on one widthwise one end side of the vehicle body which partitions the nap chamber 3. It is set up. The mount 11 is formed in a gate shape with a metal plate such as an iron plate or a resin, and is fixed to the vehicle body by an appropriate fixing means.

The mounting base 11 has a bed-like shape due to this gate shape.
11a and a space 11a having a size into which the tip of the foot of the napper A can be inserted. The cooling unit 5 is mounted and fixed on the upper surface of the mount 11. In addition, 12 is a passenger seat of the cab 1, and 13 is a window glass part. Next, the operation of this embodiment with the above configuration will be described. When the refrigeration cycle for air conditioning in the cab 1 of the truck is operated while the truck is traveling and the compressor is driven by the vehicle engine, the refrigerant circulates in the refrigeration cycle. As a result, the refrigerant also circulates in the cold storage evaporator 54 in the cooling unit 5, and the cold storage pack 55 is cooled by the latent heat of vaporization of the refrigerant, so that the cold storage material (water or the like) in the cold storage pack 55 is frozen to cool Can act.

On the other hand, when the driver or the like takes a nap in the nap room 3 while the truck is parked, the control panel 58 for cooling the nap room is provided.
By operating an operation lever (not shown) of the blower 9 provided in the blower 9, the blower 9 is operated using the vehicle-mounted battery as a power source. Then, the blown air flows in the case 51 of the cooling unit 5 along the path shown by the arrow in FIG. 3, and when the blown air passes through the ventilation path 56 between the cold storage pack 55 and the evaporator 54, the cold storage pack 55 and the heat are blown. Replace it, cool it down to cool air,
The air is blown from the air outlet 7 into the nap chamber 3 through the communication port 57 and the air flow path 52 to cool the nap chamber 3.

The nap room cooling during parking can be performed until the cool storage material in the cool storage pack 55 is completely melted and the temperature rises. In this way, when cooling the nap room 3,
According to the present invention, by improving the form of blowing cold air, it is possible to cool the napper A with a good feeling. Therefore, the improvement of the form of blowing will be described in detail below.

As shown in FIGS. 1 and 5, the cooling unit 5 is installed on the side wall 10 on one end side in the vehicle width direction in the nap chamber 3, and the upper side thereof is opened toward the side wall 14 on the other end side in the vehicle width direction. Since the air outlet 7 is provided, the cool air from the air outlet 7 is blown toward the side wall 14 on the other end side in the vehicle width direction to reach the vicinity of the head of the napper A as indicated by arrow B. Therefore, the upper half of the napper A can be effectively cooled.

Since the suction port 6 is provided in the lower portion of the cooling unit 5, the air flow from the upper half of the napper A through the lower half of the body to the suction port 6 (see arrow C in FIGS. 1 and 5).
Can be generated. Therefore, the upper body of the napper A can be effectively cooled, and the flow of cool air can be uniformly applied to the whole body from the upper body to the lower body.
A comfortable cooling feeling can be given to the napper A.

FIG. 6 shows the experimental results of the device of the present invention. The installation form of the cooling device used in the experiment is shown in FIG.
1 = 2000-2200 mm, W2 = 500-600 m
m, W3 = 350 mm, W4 = 120 mm, W5 = 18
5 mm, H1 = 1000 mm, H2 = 300 mm, H3
= 560 mm, H4 = 400 mm, H5 = 40 mm, H
6 = 700 mm and H7 = 60 mm.

Water is used as a regenerator material in the regenerator pack 55, and when the water is frozen and lowered to a temperature of -5 ° C, the blower 9 blows 40 m ³ / h, and the blowout port 7 Set the blowing wind speed at 9 m / s,
As a result of operating the cooling device having the above-mentioned installation form, FIG.
6 and the temperature distribution shown in FIG. 6B, the nap chamber 3
I was able to cool the inside.

As can be seen from FIG. 6 (a), cold wind can reach the vicinity of the head of the nap person A, and the wind speed near the head is 0.2 m / s or less, which is excessive. No discomfort caused by cold air. Moreover, as shown in FIG. 6B, the temperature distribution from the upper half body to the lower half body of the nap person A becomes a uniform temperature of 27.9 ° C. From this point as well, a comfortable cooling feeling for the nap person A is obtained. Can be given.

The present invention can be implemented in various modes other than the illustrated embodiment. For example, in a vehicle such as a one-box car other than a truck, the engine is stopped when the space behind the passenger compartment is parked. The device of the present invention may be used for applications such as cooling. In addition to the type in which the flat tubes are bent in a meandering shape as the evaporator 54, a large number of linear flat tubes are arranged in parallel, and refrigerant inlet and outlet tanks are provided at both ends of the parallel arranged flat tubes. A type of arrangement (generally called a multi-flow type) may be used.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view showing an installation form of a cooling unit according to an embodiment of the present invention.

FIG. 2 is a partially cutaway front view of the cooling unit 5 of FIG.

3 is a cross-sectional view of the cooling unit 5 of FIG.

FIG. 4 is a front view showing a specific installation structure of a cooling unit 5.

FIG. 5 is a side view showing a specific installation structure of the cooling unit 5.

6 (a) and 6 (b) are explanatory views showing experimental results of the device of the present invention.

FIG. 7 is a schematic explanatory view of a conventional device.

FIG. 8 is a schematic explanatory view showing an installation form of a cooling unit of a conventional device.

[Explanation of symbols]

3 ... Nap room, 4 ... Bed, 5 ... Cooling unit, 6
...... Suction port, 7 ... Blowout port, 9 ... Blower, 10, 14
…… Side wall, 11 …… Mounting stand, 54 …… Evaporator, 55 ……
Cold storage pack, A ... A nap person.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Nao Tanaka 1-1-1, Showa-cho, Kariya city, Aichi prefecture Nihon Denso Co., Ltd.

Claims (4)

[Claims] 1. In a vehicle having a nap room for an occupant to take a nap, a cooling unit having a cooling means and a blower means is disposed on a side wall of the nap room at one end side in the vehicle width direction, The lower part of the unit is provided with an inlet for sucking the air in the nap room, and the upper part of the cooling unit is provided with the cool air cooled by the cooling means on the other end side in the vehicle width direction of the nap room. An air conditioner for a vehicle, comprising an air outlet that blows toward a side wall. 2. A mounting base having a space large enough to insert a bed end and a tip of a foot of a nap person is provided below the side wall on the one end side in the vehicle width direction in the nap room. The vehicle cooling device according to claim 1, wherein the cooling unit is disposed above the mounting base. 3. The suction port is formed over substantially the entire area in the front surface width direction of the cooling unit, and the blowout port is formed in the front surface width direction of the cooling unit.
The vehicle cooling device according to claim 1 or 2, wherein the cooling device is formed only in a narrow range of about 1/3. 4. The cooling means comprises a regenerator material having a regenerator function and a cooler for accumulating the regenerator material when the vehicle is traveling. The vehicle cooling device according to one.