JPH08166185A - Carrying vehicle with temperature control function - Google Patents

Abstract

PURPOSE: To obtain a carrying vehicle with a temperature control function which can be switched over to one-chamber specification and two-chamber specification in accordance with the situation of carriage. CONSTITUTION: A holding part is made divisible into the front and the rear by a partition wall 2 which can be opened and closed, and a front-chamber-side temperature control unit 5 and a rear-chamber-side temperature control unit 6 which are covered with an end wall 7 are disposed in the front end part of the holding part. The inlet and outlet sides of the front-chamber-side temperature control unit 5 are made to communicate with a front chamber 3 through the end wall 7, while the inlet and outlet sides of the rear-chamber-side temperature control unit 6 are made to communicate with a rear chamber 4 through forward and backward passages 36 and 37 formed in the upper part of the holding part. A shutter 43 is provided between the front-chamber-side temperature control unit 5 and the rear-chamber-side temperature control unit 6 so that the state of communication between the temperature control units be made adjustable, and the partition wall 2 and the shutter 43 are closed when this carrying vehicle is used in two chamber specification, while the partition wall 2 and the shutter 43 are opened when it is used in one-chamber specification.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle having two chambers capable of loading different kinds of foods and the like, and a vehicle having a temperature control function capable of having one chamber if desired.

[0002]

2. Description of the Related Art Conventionally, as a carrier vehicle for carrying loads,
For example, the one disclosed in JP-A-58-145517 is known. This is to form a cooling unit by a cooling heat exchanger for a cooling cycle and a blower for blowing the air heat-exchanged by the cooling heat exchanger to an air-conditioned space. A warming heat exchanger that uses water as a heat source and a blower that blows the air that has been heat-exchanged by the warming heat exchanger into the air-conditioned space form a warming unit, and each of these units is stored in a storage cabinet. The cooling unit has a heating function.

[0003]

However, in the above-mentioned structure, the structure is designed on the assumption that there is only one storage room in one vehicle, and when carrying a large amount of the same load. There is no problem if there are many types of cargo, especially if you want to transport small quantities of cargo with different temperature management, as long as there is one storage space as in the past, even if it is a small quantity However, there was a problem that the transportation efficiency was poor because it had only to be transported to.

In order to solve this, the storage part is divided into two, and the front chamber side temperature control unit is provided in the end wall at the front end of the storage part and is used to control the temperature of the front chamber and the rear chamber side temperature control. A two-room type, which is used to control the temperature of the rear room by arranging the conditioning unit on the ceiling above the rear room, is conceivable. With such a configuration, it is possible to control the temperature independently for each room, and it is possible to support the transportation of different kinds of food, but on the contrary, when you want to carry a full load of the same type of food. In preparation for this, there is the inconvenience that it cannot be changed to the one-room specification.

Therefore, it is an object of the present invention to provide a carrier vehicle capable of switching between the one-room specification and the two-room specification depending on the circumstances of the transportation.

[0006]

SUMMARY OF THE INVENTION In a vehicle multi-room temperature control system according to the present invention, however, an openable / closable partition wall divides a storage part into front and rear parts to form two chambers, and a front end of the storage part. An anterior chamber side temperature control unit and a rear chamber side temperature control unit, which are covered with end walls, are arranged in the section, and the intake side and the outlet side of the anterior chamber side temperature control unit communicate with the anterior chamber through the end wall. The intake side and the outlet side of the rear chamber side temperature control unit communicate with the rear chamber via a reciprocating path formed in the upper part of the storage section, and the downstream side of the front chamber side temperature control unit is the rear chamber. In a positional relationship facing the upstream side of the side temperature control unit, a shutter is provided between the front room side temperature control unit and the rear room side temperature control unit so that the communication state between the temperature control units can be adjusted, When the partition wall is open, the shutter is opened ( Motomeko 1).

Here, the front room temperature control unit is a blower,
A heat exchanger for cooling and a heat exchanger for heating may be provided (Claim 2), and also in the rear room temperature control unit,
It may have a similar configuration. In particular, when the partition wall is opened and the shutter is opened, the unit fan of the front room side temperature control unit and the rear room side temperature control unit need to be installed in order to ensure the blowing ability between the front part and the rear part of the storage part. It is preferable to operate the unit fan (Claim 3).

Further, when the shutter is opened, the air that has passed through the front chamber side temperature control unit passes through the rear chamber side temperature control unit by the shutter and is sent to the rear portion of the storage section and the rear chamber. A configuration is conceivable in which it is distributed to the air sent to the front portion of the storage portion without passing through the side temperature control unit (claim 4).

[0009]

Therefore, according to the present invention, when it is desired to use it as a two-chamber specification, the partition wall is closed and the storage section is divided into front and rear, and the space between the front chamber side temperature control unit and the rear chamber side temperature control unit is separated. The shutter is closed to block the communication between these temperature control units, the front room temperature control unit is used only for the front room, and the rear room temperature control unit is used only for the rear room, and each room is supported. The temperature control unit controls the temperature independently. If you want to use it as a one-room type, open the partition wall to eliminate the boundary between the front and rear chambers, and open the shutter between the front room temperature control unit and the rear room temperature control unit to open the front room side. The downstream side of the temperature control unit is connected to the upstream side of the rear room temperature control unit so that the air blown from the front room side temperature control unit can be sucked into the rear room temperature control unit as well. The temperature of the storage section at the same time. Therefore, both the two-room specification and the one-room specification can be supported, and the above-mentioned problems can be achieved.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, in a carrier vehicle with a temperature control function, a storage unit 1 can be divided into two chambers, a front chamber 3 and a rear chamber 4, by a partition wall 2, and the front chamber corresponding to each chamber. The side temperature control unit 5 and the rear room side temperature control unit 6 are mounted in the end wall 7 at the front end of the storage section.

As shown in FIGS. 2 and 3, the front chamber side temperature control unit 5 is arranged with its outlet end aligned with the end face of the first boundary wall 8 provided in the middle of the end wall 7. , The cooling heat exchanger 9 at the bottom, and the heating heat exchanger 1 above it.
0, and unit fans 11 are sequentially arranged at the top.

A rear room side temperature control unit 6 is provided above the unit fan 11 of the front room side temperature control unit 5 via a second boundary wall 12, and the rear room side temperature control unit 6 is the highest. The cooling heat exchanger 13 is arranged in the lower part, and the unit fan 14 is arranged above the cooling heat exchanger 13.

The unit fans 11 and 14 are the motor 11
a and 14a, the sirocco fans 11b and 1 are provided at both ends of the drive shaft.
4b is connected to the twin type heat exchanger 10,
Two motors are arranged along the end surface of the motor 13,
By rotating a and 14a, the air in the room is sucked through the heat exchanger and blown.

Heat exchanger 9 for cooling the temperature control unit in the front chamber
As shown in FIG. 4, the accumulator 15, the compressor 16, the condenser 17, the liquid tank 18,
The solenoid valve 19 and the expansion valve 20 are sequentially pipe-connected to form a front-chamber side cooling cycle, and the cooling heat exchanger 13 of the rear-chamber side temperature control unit 8 includes the accumulator 15, the compressor 16, the condenser 17, and the cooling heat exchanger 13. The liquid tank 18 is commonly used, and the solenoid valve 21 and the expansion valve 22 are sequentially pipe-connected to form a rear chamber side cooling cycle. Therefore, the solenoid valve 1
9, the expansion valve 20, and the series path of the heat exchanger 9 for cooling,
The solenoid valve 21, the expansion valve 22, and the cooling heat exchanger 13 are connected in series with the accumulator 15,
The compressor 16, the condenser 17, and the liquid tank 18 are connected in parallel with each other.

When the compressor 16 operates and the air is sent to the cooling heat exchanger on the path where the solenoid valve is open, the air is cooled when passing through it. That is, when the compressor 16 is operating, the refrigerant discharged from the compressor 16 is radiated by the condenser 17 to be condensed and liquefied, and the liquid tank 18 is separated into gas and liquid, and then the solenoid valves 19 and 21 are opened. The upper expansion valves 20 and 22 serve as low-temperature low-pressure refrigerant, which absorbs heat from the air passing therethrough in the cooling heat exchangers 9 and 13 to be evaporated and vaporized. A condenser fan 23 that cools the condenser 17 is provided at a position facing the condenser 17.

The heating heat exchanger 10 is a cooling heat exchanger 9.
All the air that has passed through is reheated, and the cooling water of the engine 25 is used as a heat source. The circulation path of the engine cooling water includes a water pump 26 that pumps the cooling water from the engine 25, a preheater 27 that heats the cooling water that is pumped, the heat exchanger 10 for heating the front chamber side temperature control unit 5, and the cooling water. A water pump 28 for re-pressure feeding and a heat exchanger 29 provided in the cabin are sequentially connected by piping. In this circulation path, a bypass passage 30 that bypasses the heating heat exchanger 10 is further provided, and at the upstream branch point of each bypass passage 30, the cooling water flowing to the heating heat exchanger side and the bypass passage are provided. A three-way valve 31 for adjusting the ratio of the cooling water flowing through 30 is provided.

The second boundary wall 12 surrounds both sides and the lower side of the rear chamber side temperature control unit 6 so that a suction passage 31 having a predetermined width is formed between the second boundary wall 12 and the rear chamber side temperature control unit 6. ,
The whole is U-shaped so that a blowout passage 32 of a predetermined width is formed between it and the unit fan 11 of the front chamber side temperature control unit 5 or between the side wall of the storage portion. It is connected to the ceiling lower wall 33b that closes the upper part.

An air inlet 34 communicating with the front portion of the storage portion is formed at the lower end portion of the end wall 7, and an upper end portion of the reciprocating path 3 provided above the storage portion 1 is described below.
It faces 6 and 37. The air sent to the outlet passage 32 is provided on both sides of the upper portion of the end wall 7 in the front chamber 3.
An air outlet 35 is formed to send to the (front of the storage).

The reciprocating path has a double ceiling at the upper part of the storage unit 1 and has, for example, 3 spaces between the ceiling upper wall 33a and the ceiling lower wall 33b.
As shown in FIG. 5, the central passage is divided into two passages, and the air blown out from the unit fan 14 of the rear room side temperature control unit 6 is passed through the air outlet 40 formed in the rear portion of the ceiling lower wall 33b as shown in FIG. Forward path 36 to the rear chamber 4 (rear of the storage chamber)
The passages on both sides are provided with an intake port 41, one end of which communicates with the intake passage 31 and the other end of which is formed in the rear portion of the ceiling lower wall 33b.
The return path 37 communicates with the rear chamber 4 (the rear portion of the storage chamber) via the.

The unit fan 1 of the front room temperature control unit 5
A shutter 43 is formed on the second boundary wall 12 facing the first boundary wall 12. The shutter 43 is composed of, for example, a damper that is rotated by an actuator (not shown). In this embodiment, two shutters are provided to face the blowers in which the unit fans are arranged in parallel, and one side of the outer side is the rotation axis. From the position (I position) indicated by the solid line in FIG. 2 that shuts off the downstream side of the front chamber side temperature control unit 5 and the upstream side of the rear chamber side temperature control unit 6, the tip is located at the blowout center of each blower. The opening degree is adjusted to a position (II position) indicated by a chain double-dashed line in which the downstream side of the front chamber side temperature control unit 5 is communicated with the air outlet 35 and the upstream side of the rear chamber side temperature control unit 4 is also communicated. It is like this.

Further, the partition wall 2 formed in the substantially central portion of the storage portion 1 can change the ratio of the size of each space of the front chamber and the rear chamber, as shown by the chain double-dashed line in FIG. In addition, it can be moved back and forth within a predetermined range. The partition wall 2 is a double-opening door that rotates forward from a position (III position) shown by a broken line in FIG. 5 that divides the storage unit to a position (IV position) shown by a two-dot chain line along the side wall of the storage unit. Has become.

In the above structure, due to the request for the two-room specification,
As shown in FIG. 3, the partition wall 2 is closed to divide the storage portion into a front chamber 3 and a rear chamber 4, and as shown in FIG. 2, the shutter 43 is closed and the front chamber temperature control unit 5 is closed. When the unit fan 11 and the heat exchangers 9 and 10 of the front chamber side temperature control unit 5 are operated in order to block the communication between the rear chamber side temperature control unit 6 and the front chamber 3, the end wall Air is taken in through an intake port 34 formed at the lower end of 7, and the air whose temperature is adjusted by the cooling heat exchanger 9 and the heating heat exchanger 10 is pumped to the blowout passage 32 through the unit fan 11. Then, the air is blown to the front chamber 3 along the both sides of the second boundary wall 12 from the air outlet 35 in the upper part of the end wall.

When the unit fan 14 of the rear chamber side temperature control unit 6 and the heat exchanger 13 are operated to control the temperature of the rear chamber 4, the air in the rear chamber returns to the return path 37 via the suction port 41.
And is guided to the cooling heat exchanger 13 via the suction passage 31 in the end wall 7, and the cooling heat exchanger 1
The air whose temperature is adjusted in 3 is pressure-fed to the outward path 36 via the unit fan 14 and is blown to the rear chamber 4 from the air outlet 40 of the ceiling lower wall 33b.

On the other hand, when it is desired to use it as a one-chamber type, as shown in FIG. 7, the partition wall 2 is opened to eliminate the boundary between the front chamber 3 and the rear chamber 4 of the storage section, and the structure shown in FIG. As also shown, the shutter 43 is opened to connect the front room temperature control unit 5 and the rear room temperature control unit 6 to each other. In the rear room temperature control unit 6, the solenoid valve 21 is closed and the refrigerant is not supplied to the heat exchanger 13 and only the unit fan 14 is operated. In addition, the front room temperature control unit 5
In this case, the heat exchanger 9 for cooling and the heat exchanger 10 for heating are operated as necessary (if necessary, the solenoid valve 19
The engine cooling water is supplied to the heating heat exchanger 10 by the three-way valve 31 and the unit fan 11 is operated.

As a result, from the front part of the storage part 1 to the suction port 3
The air sucked through 4 is temperature-controlled by the front chamber side temperature control unit 5, and the air blown from the outlet port 35 to the front part of the storage section by the shutter 43 through the outlet passage 32 and the rear chamber side temperature control unit. It is divided into air sent to the unit 6 and, in the rear room side temperature control unit 6, air sent from the front room side temperature control unit 5 is sucked through the return path 37 and the suction path 31. The air and the unit fan 14 are pressure-fed to the outward path 36 and are blown to the rear of the storage unit 1.

As described above, in the case of the one-chamber specification, only the heat exchangers 9 and 10 of the anterior chamber side temperature control unit 5 are used for temperature control of the entire storage section, but especially the rear section of the storage section 1. Since it is necessary to blow temperature-controlled air to the unit fans 11 and 14
As described above, it is desirable to operate not only the front chamber side temperature control unit side but also the rear chamber side temperature control unit side.

Therefore, there are two cases where it is used as one room specification.
The case of using the room type can be easily switched by opening / closing the partition wall 2 and the shutter 43 and changing the operating state of the heat exchanger 13.

In this embodiment, the heating heat exchanger 10 is provided only in the front chamber side temperature control unit 5, but the rear chamber side temperature control unit 6 is also shown by the broken line in FIG. As shown by, the heat exchanger 13 for cooling and the unit fan 1
A heat exchanger 42 for heating is provided between the heat exchanger 4 and
2 is connected in series to the circulation path of the engine cooling water, and a bypass passage 43 for bypassing the piping is provided.
The one-way valve 44 may be used to adjust the flow rate ratio between the cooling water flowing to the heating heat exchanger 42 and the bypass passage 43 that bypasses the heating heat exchanger 42.

Further, the partition wall 2 and the shutter 43 may be controlled to be opened / closed by a signal from the control unit by operating a changeover switch of the operation panel or may be manually controlled to be opened / closed. Solenoid valve 19,
When automatically controlling the opening and closing of the partition wall 2 and the shutter 43 together with the unit 21, the unit fans 11 and 14, etc., a control operation example as shown in FIG. 8 can be considered.

That is, in step 52, it is judged whether the two-room specification is selected or the one-room specification is selected by the operation panel. When the two-room specification is selected, the partition wall 2 is closed. (Step 54), the shutter 43
Is closed (step 56), and the front room side temperature control unit 5 and the rear room side temperature control unit 6 are provided so that the desired temperature control can be obtained for each room.
And are operated independently (step 58). When the one-chamber specification is selected in step 52, the partition wall 2 is opened (step 60) and the shutter 43 is opened (step 62). Enables the unit fan 11 and the heat exchangers 9 and 10, and in the rear room temperature control unit 6, the heat exchanger 13
The function of is turned off (the solenoid valve 21 is closed) and only the unit fan 14 is operated (step 6).
4).

[0032]

As described above, according to the present invention,
When using the storage part as a two-room specification, close the partition wall,
When the shutter is closed and the temperature of each room is controlled independently, and when it is used as a single room specification, the partition wall is opened and the shutter is opened to control the temperature of the front part and the rear part of the storage section at the same time. Accordingly, it is possible to easily switch between the one-chamber specification and the two-chamber specification as appropriate, and it is possible to provide a carrier vehicle according to the carrier circumstances.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a carrier vehicle with a temperature control function according to the present invention.

FIG. 2 is a diagram showing a schematic configuration of a temperature control unit housed in an end wall, showing a state in which a shutter is closed.

FIG. 3 is a perspective view of a storage unit showing a two-chamber specification state in which a partition wall and a shutter are closed.

FIG. 4 is a diagram showing a cycle configuration connected to a temperature control unit.

FIG. 5 is a diagram showing a reciprocating path formed in an upper portion of a storage portion.

FIG. 6 is a diagram showing a schematic configuration of a temperature control unit housed in an end wall, showing a state in which a shutter is opened.

FIG. 7 is a perspective view of a storage unit showing a one-chamber specification state in which a partition wall and a shutter are opened.

FIG. 8 is a flowchart showing a control operation example by a control unit.

[Explanation of symbols]

 1 Storage Part 2 Partition Wall 3 Front Room 4 Rear Room 5 Front Room Temperature Control Unit 6 Rear Room Temperature Control Unit 7 End Wall 9,13 Cooling Heat Exchanger 10,42 Heating Heat Exchanger 11,14 Unit Fan 43 shutter

Claims (4)

[Claims] 1. A front wall temperature control unit and a rear room temperature control unit, in which a storage part is divided into front and rear by an openable / closable partition wall to form two chambers, and a front end part of the storage part is covered with an end wall. And a suction unit and a discharge side of the front chamber side temperature control unit communicate with the front chamber via the end wall, and a suction side and a discharge side of the rear chamber side temperature control unit of the storage unit. It communicates with the rear chamber via the reciprocating path formed in the upper part,
The downstream side of the front room temperature control unit is in a positional relationship facing the upstream side of the rear room temperature control unit, and a shutter is provided between the front room temperature control unit and the rear room temperature control unit. A communication vehicle with a temperature control function, wherein the communication state between the temperature control units can be adjusted, and the shutter is opened when the partition wall is opened. 2. The carrier vehicle with temperature control function according to claim 1, wherein the front room temperature control unit includes a unit fan, a cooling heat exchanger, and a heating heat exchanger. 3. The carrier vehicle with temperature control function according to claim 1, wherein when the shutter is opened, the unit fan of the front room temperature control unit and the unit fan of the rear room temperature control unit are operated. 4. When the shutter is opened, the air that has passed through the front chamber side temperature control unit passes through the rear chamber side temperature control unit by the shutter and is sent to the rear part of the storage section and the rear chamber. The carrier vehicle with a temperature control function according to claim 1, wherein the vehicle is distributed to the air sent to the front part of the storage section without passing through the side temperature control unit.