JPH1059057A - Cargo temperature regulating compartment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To change the volumes of two temperature regulating spaces when needed by providing a first (second) outlet having a first (second) duct formed for discharging air whose temperature is regulated with a first (second) temperature regulating means along a wall of the first (second) temperature regulating space. SOLUTION: To a control unit, at least a signal from a temperature sensor for detecting a discharge temperature of a first temperature regulating device 7, a signal from the temperature sensor for detecting a discharge temperature of the second temperature regulating device 8, an box inside temperature of the first temperature regulating space 5 and a box inside temperature of the second temperature regulating space 8 are inputted. After these signals are processed with a predetermined program, a control signal is output to each of the control devices. With this, the loading volume of the first temperature regulating space 5 and the second temperature regulating space 6 can be changed by moving a partition 4. Furthermore, the temperature mode of respective temperature regulating spaces 5 and 6 can be separately set and controlled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cargo temperature control warehouse mounted on a vehicle and having two temperature control spaces separated by a partition wall.

[0002]

2. Description of the Related Art As a conventional cargo temperature control warehouse, 7-1.
The cargo storage room disclosed in Japanese Patent No. 286 is provided with a plurality of air outlets along the front-rear direction of the baggage storage room, and an opening / closing mechanism that opens and closes the air holes as the partition plate moves. As a result, the rear blower opening is opened by the movement of the partition plate, so that the temperature of only one chamber, in this embodiment, only the rear chamber side can be adjusted, and the volume of this space can be freely changed. Is what you can do. Further, since only a space having a necessary volume is cooled, unnecessary cooling is not performed, and thus efficiency can be improved.

[0003] Further, the cooling device for a refrigerating vehicle disclosed in Japanese Utility Model Laid-Open Publication No. 5-1974 has a single cooling device.
In order to achieve freezing and cooling of the two chambers, a communication hole is formed in a partition wall of the two chambers, and two air guide paths for guiding air passing through the first evaporator to the two chambers, respectively. And a second evaporator provided on one of the air guide paths. As a result, the space through which the air guide passage passing through the two evaporators is guided becomes a freezer, and the space passing through one evaporator becomes a refrigerator.

Further, the freezer of a refrigerator disclosed in Japanese Utility Model Publication No. 58-10945 discloses a temperature control device in which the inside of the freezer is partitioned by a partition plate having good heat conduction and a partition plate made of a heat insulating material. A plurality of chambers having different temperature control levels are formed.

[0005]

However, in the cargo storage room disclosed in Japanese Utility Model Publication No. Hei 7-1286, although the volume of the two rooms can be changed by moving the partition plate, both the rooms can be changed. In addition, in the cooling device for a refrigerator car disclosed in Japanese Utility Model Laid-Open No. 5-1974, there is a large protrusion at the upper portion of the refrigerator compartment side, which limits the storage space of the refrigerator compartment. In addition, since the cold air in the freezing room passes through the refrigerating room and is sucked into the cooling device, there is a problem that the temperature control in which the two rooms are completely independent cannot be performed. Furthermore, the refrigerator of the refrigerator disclosed in Japanese Utility Model Publication No. 58-10945 can achieve a plurality of temperatures by one cooling means, but cannot maintain a plurality of chambers at required temperatures. There is a problem that.

[0006] Furthermore, due to the demands of customers for modern freight transportation, it is necessary to take detailed measures by diversifying transportation items. For example, consider cargoes such as flowers that must not be directly exposed to cold or hot air, and consider changes in temperature due to intrusion of outside air when doors are frequently opened and closed, such as urban delivery vehicles. Is required.

[0007] As described above, the present invention can change the volume of the two temperature control spaces as required, and can control the temperature of cargo indirectly and the temperature of cargo in consideration of the intrusion of outside air. To provide a warehouse.

[0008]

According to the first aspect of the present invention, the storage section is divided into a first temperature control space and a second temperature control space inside the storage section and is movable within a predetermined range. A partition wall, a cover portion with which the upper end of the partition wall contacts, and a space formed between the cover portion and the upper surface of the storage portion into a first storage space and a second storage space. A first temperature control means disposed in the first storage space and comprising a blowing means and a heat exchange means; and a second temperature control means disposed in the second storage space and comprising a blowing means and a heat exchange means. A temperature control means and an outlet which is connected to the first temperature control means and discharges the air controlled by the first temperature control means along a wall of the first temperature control space are formed. Air that is connected to a first duct and connected to the second temperature control unit and is controlled in temperature by the second temperature control unit; Lies in the and a second duct outlet for discharging along the walls of the second temperature control space is formed.

Therefore, according to the present invention, since the partition wall can be moved within a predetermined range, the volume ratio between the first temperature control space and the second temperature control space can be changed. In addition, the space with the larger loading capacity can be enlarged. Further, first and second storage spaces are formed in a cover portion where the upper portion of the partition wall contacts, and the first and second storage spaces are formed.
The first and second temperature control means for controlling the temperature of the first and second temperature control spaces are arranged in the storage space. In addition, first and second ducts extending from the first and second temperature control means to the first and second temperature control spaces are continuously provided, and the first and second ducts are blown out from the outlets. The temperature-controlled air was blown out in the horizontal direction. As a result, the air whose temperature has been adjusted is lowered along the wall from the side wall, and the air lifted from below is sucked in from the sides of the first and second storage spaces, and the first air is sucked from the first storage space.
And the second temperature control means, so that the temperature-controlled air does not directly hit the cargo,
And the second temperature control space can be controlled.

According to a second aspect of the present invention, there is provided a storage section having a side opening and closing door and a rear opening and closing door, a first temperature control space opened and closed in the storage section by the side opening and closing door, and a rear opening and closing section. Partitioning into a second temperature control space opened and closed by a door, a partition wall movable in a predetermined range, a cover portion in which an upper end of the partition wall abuts, and a cover portion and an upper surface of the storage portion. A partition section for partitioning a space formed therebetween into a first storage space and a second storage space;
A first temperature control means which is arranged on the side opening / closing door side of the storage space and comprises a blowing means and a heat exchange means, and a second temperature control means which is disposed in the second storage space and comprises a blowing means and a heat exchange means.
And the air temperature controlled by the first temperature control means is provided in the first temperature control space, the air being connected to the first temperature control means and disposed on the side opening / closing door side. And a side door side discharge port for discharging air temperature-controlled by the first temperature control means along an opening surface of the side opening / closing door. A first duct,
While being connected to the second temperature control means and extending to the rear opening / closing door side end, the air temperature controlled by the second temperature control means is transferred along the wall of the second temperature control space. A second duct formed with a side outlet for discharging and a rear door-side outlet for discharging air temperature-controlled by the second temperature control means along an opening surface of the rear opening / closing door. I have it.

Therefore, according to the present invention, since the partition wall can be moved within a predetermined range, the volume ratio between the first temperature control space and the second temperature control space can be changed. In addition, the space with the larger loading capacity can be enlarged. Further, first and second storage spaces are formed in a cover portion where the upper portion of the partition wall contacts, and the first and second storage spaces are formed.
The first and second temperature control means for controlling the temperature of the first and second temperature control spaces are arranged in the storage space. Further, first and second ducts extending to the first and second temperature control spaces are connected to the first and second temperature control means, respectively, and the horizontal outlets of the first and second ducts are provided. The temperature-controlled air is blown out in the horizontal direction. As a result, the temperature-controlled air descends along the wall from the side wall, and the air lifted from below is sucked from the side of the first and second storage spaces, and the first and second air are sucked from the side. Since it constitutes a cycle leading to temperature control means,
The temperature of the first and second temperature control spaces can be controlled without the temperature-controlled air directly hitting the cargo. Further, since the air is blown out vertically from the side outlet of the first duct along the opening surface of the side opening / closing door, the blown air becomes an air curtain. Intrusion can be suppressed. Similarly, since the air is blown vertically from the rear outlet of the second duct along the opening surface of the rear opening / closing door,
Since the blown air serves as an air curtain, intrusion of outside air when the rear opening / closing door is opened can be suppressed. Thereby, the above-mentioned subject can be achieved.

Further, the heat exchange means is a cooling heat exchanger and a heating heat exchanger, and the first and second temperature control means are:
This is because the blower, the cooling heat exchanger, and the heating heat exchanger are arranged in this order along the blowing direction. However,
In particular, in the case of only temperature control that does not require heating, only the cooling heat exchanger may be used as the heat exchange means, and in cold regions, the heat exchange means may be formed only by the heating heat exchanger. Good thing. However, as described above, if a cooling heat exchanger and a heating heat exchanger are provided as heat exchange means, various temperature settings can be made, and in particular, in a warm place without replacing the device. This is also applicable in cold regions, and is suitable when it is necessary to transport cargo from cold regions to warm regions.

[0013]

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

The cargo temperature controller 1 shown in FIG. 1 includes a driver's seat 2 and a cargo temperature controller 3, and the cargo temperature controller 3 moves within a predetermined range (between A and B in the figure). It has a possible partition wall 4 and two temperature control spaces (first and second temperature control spaces) 5 and 6 divided by the partition wall 4. The first temperature control space 5 divided by the partition wall 4 is communicated with the outside by a side opening / closing door 15 formed on the side wall of the cargo temperature control storage 3, and the second temperature control space 6 is connected to the outside. The cargo temperature controller 3 communicates with the outside by a rear opening / closing door 16 formed on the rear wall.

As shown in FIG. 1 and FIG.
A cover 25 is attached to the upper central portion at a predetermined distance from the upper wall of the cargo temperature storage 3 to hold the upper end of the partition wall 4 in contact therewith. The first space communicating with the first temperature control space 5 is formed by partitioning a space between the first temperature control space 5 and the upper wall of the storage 3 by the partition plate 26.
And a second storage space 61 communicating with the second temperature control space 6.

The first storage space 60 is provided with first temperature control means 7 for controlling the temperature of the first temperature control space 5.
In the second storage space 61, the second temperature control space 6 is provided.
The second temperature adjusting means 8 for adjusting the temperature of the air is provided. The first and second temperature control means 7 and 8 are, for example, thin temperature control devices shown in FIG. This thin temperature control device (hereinafter, the first and second temperature control means are referred to as first and second temperature control devices 7 and 8).
And ) 7 and 8 denote first and second air flow paths.
Cases 23 and 24, first and second blowers 21 and 22 arranged upstream of the air flow path, and cooling units arranged downstream of the first and second blowers 21 and 22. First and second evaporators 17 and 18 as heat exchangers
And first and second heater cores 19 and 20 as a heat exchanger for heating.

A first duct extending from the upper part of the first temperature control space 5 to the front end of the cargo temperature control storage 3 on the driver's seat 2 side is provided at an outlet of the first temperature control device 7. 9 is attached,
A second duct 10 extending from the upper part of the second temperature control space 6 to the rear end of the cargo temperature control storage 3 is attached to the outlet of the second temperature control device 8.

On both sides of the first duct 9, FIG.
As shown in the figure, an air outlet 11 is formed perpendicular to the blowing direction of the first temperature control device 7, and the temperature of the air outlet 11 is controlled horizontally along the upper wall of the first temperature control space 5. Blow out the air. The temperature-controlled air descends from the upper wall of the first temperature-controlled space 5 along the side wall, and controls the temperature so as to wrap around the loaded cargo. Push up the air. The pushed air is sucked into the blower 21 of the first temperature control device 7 from the opening of the first storage space 60, and the temperature is controlled again. In addition, 1
Reference numeral 3 denotes a partition for securing the left and right air volumes.

Similarly, on both sides of the second duct 10, as shown in FIG. 2, outlets 12 are formed perpendicular to the blowing direction of the second temperature control device 8. The air whose temperature is controlled horizontally is blown out along the upper wall of the second temperature control space 6. The temperature-controlled air descends from the upper wall of the second temperature-controlled space 6 along the side wall, controls the temperature so as to wrap around the loaded cargo, and also controls the temperature in the second temperature-controlled space 6. Push up the air. This pushed-up air is sucked into the blower 22 of the second temperature control device 8 from the opening of the second storage space 61, and the temperature is controlled again. In addition, 14 is a partition part for ensuring the air volume of right and left.

The temperature control device in the cargo temperature control warehouse 3 having the above-described structure is, for example, as shown in FIG. 4, and includes, for example, a compressor 14 disposed below the driver's seat 2 as cooling means.
The condenser 30, the first solenoid valve 37, the first expansion valve 31, the first evaporator 17, the first evaporator 17, and the receiver disposed in the condenser case 11 disposed on the front upper part of the cargo temperature control chamber 3 together with the condenser blower 36. A first refrigeration cycle returning from the tank 33 to the compressor 14, and a return from the compressor 14, the condenser 30, the second solenoid valve 38, the second expansion valve 32, the second evaporator 18, and the receiver tank 33 to the compressor 14. There is a second refrigeration cycle in which a passage leading to the first evaporator 17 or the second evaporator 18 is opened and closed by the solenoid valves 37 and 38.

The first and second heater cores 19 and 20 serving as heating heat exchangers use the engine cooling water of the traveling engine 13 as a heat source. The first and second heater cores 1 are opened and closed by opening and closing the first and second solenoid valves 39 and 40 with the engine cooling water circulating through the heater core 1.
The air is supplied to the heaters 9 and 20 as appropriate to heat the air passing therethrough.

In the air-conditioning control device having the above-described configuration, for example, the first and second air conditioners are controlled by the display setting unit 42 of the control panel 12 disposed at a predetermined position of the driver's seat 2.
Are set to a predetermined temperature control mode. The display setting section 42 displays the setting mode and the current internal temperature, etc., and sends a setting signal to the control unit 4.
Output to 1. The control unit 41 includes a signal from a temperature sensor 43 for detecting the temperature of the air blown from the first temperature control device 7, a signal from a temperature sensor 44 for detecting the temperature of the air blown from the second temperature control device 8, Temperature inside the chamber of the temperature control space 5,
And at least the internal temperature of the second temperature control space 6 is input, and after processing these signals by a predetermined program,
A control signal is output to each control device. In addition, as the signal input to the control unit 41, an external air temperature signal, a temperature signal for detecting freezing of the evaporators 17, 18 and the like may be input.

In the present embodiment, the control devices include an electromagnetic clutch 27 for operatively connecting the traveling engine 13 and the compressor 14 to drive the compressor 14, a condenser blower 36, and respective electromagnetic valves. 3
7, 38, 39, 40 and blowers 21, 22.

Thus, the first temperature control space 5 and the second temperature control space 6 are set in a low temperature mode (-20 ° C. or lower), a medium temperature mode (0 ° C. to 10 ° C.), and a slow temperature mode (10 ° C. 20
C.) and a high temperature mode (25 ° C. or higher). For example, in the low-temperature mode, the traveling engine 13 and the compressor 14 are connected by the electromagnetic clutch 27, and the compressor 14 is operated. At the same time, the solenoid valve to the evaporator on the side where the low-temperature mode is set is opened to complete the refrigeration cycle, and the solenoid valve to the heater core on the side where the low-temperature mode is set is closed to shut off the heater core and the low-temperature mode is set. Start temperature control by the evaporator on the other side. Then, the blower is operated to blow cool air into the temperature control space where the low temperature mode is set. Thereby, a low-temperature mode is achieved.

In the medium temperature mode or the low temperature mode, both the evaporator and the heater core are used as required. The air cooled by the evaporator is heated by the heater core to obtain air at a desired temperature. In particular, there is an effect that the air can be dehumidified by cooling with the evaporator.

Further, in the high temperature mode, heating is performed by operating only the heater core. Thereby, the one low temperature mode (−20 ° C.)
Below), medium temperature mode (0 ° C to 10 ° C), slow temperature mode (1
0 ° C. to 20 ° C.) and a high-temperature mode (25 ° C. or higher). However, low temperature mode,
If only the medium temperature mode and the low temperature mode are sufficient, or if only the low temperature mode and the high temperature mode are sufficient, install an air conditioner with a heater core removed or an evaporator removed to simplify the system. It is possible to plan.

As described above, the loading capacity of the first temperature control space 5 and the second temperature control space 6 can be changed by moving the partition wall 4, and the capacity of each temperature control space 5, 6 can be changed. Since the temperature control mode can be set and controlled separately, it is possible to respond flexibly to the needs of the customer.

Further, the cargo temperature control warehouse 3 shown in FIG. 5 includes the first temperature control device 7 and a first duct 9 connected thereto.
Is arranged near the upper part of the side opening / closing door 15, and instead of the air outlet 11 on the side opening / closing door 15 side, a side air outlet 40 for blowing air downward is provided in the first duct. It is formed on the lower surface side. Thereby, the first
When the side opening / closing door 15 is opened in the temperature control space 5, the temperature control air blown out from the side air outlet 40 serves as an air curtain, so that the invasion of outside air can be prevented. Temperature change due to outside air in the temperature control space 5 can be suppressed.

The second temperature control device 7 and the second duct 10 connected to the second temperature control device 7 extend to the upper center of the second temperature control space 6 as in the above-described embodiment. A rear outlet 50 that opens downward is formed at the end of the second duct 10 located near the upper part of the rear opening / closing door 16. Thus, when the rear opening / closing door 16 is opened in the second temperature control space 6, the air blown out from the rear outlet 50 serves as an air curtain, so that invasion of outside air can be prevented, and The temperature change due to the outside air in the temperature control space 6 can be suppressed.

[0030]

As described above, by making the partition wall movable, the loading capacity of the two storage spaces in the cargo temperature control warehouse can be changed as required, and two more temperature controls can be performed. Since the temperature setting of the space can be set independently and can be controlled independently, it is possible to provide a versatile cargo temperature control warehouse.

Further, since the temperature control means is arranged in a central part of the cargo temperature control warehouse, piping to the temperature control means can be simplified and an effective space in the warehouse can be secured.

Further, since a duct having an air outlet is arranged near the opening and closing door and air is blown out along the opening surface of the opening and closing door, intrusion of outside air can be prevented, and the inside of the refrigerator can be stabilized. it can.

[Brief description of the drawings]

FIG. 1 is an explanatory side sectional view showing the configuration of a temperature controlled vehicle equipped with a cargo temperature control warehouse.

FIG. 2 is an explanatory plan cross-sectional view of the cargo temperature storage according to the first embodiment of the present invention.

FIG. 3 is a side view of a thin temperature control device which is an example of a temperature control device.

FIG. 4 is a configuration diagram of a temperature control device that performs temperature control of a cargo temperature storage.

FIG. 5 is an explanatory plan cross-sectional view of a cargo temperature control warehouse showing a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Grace car 2 Driver's seat part 3 Car freight car 4 Partition wall 5 1st temperature control space 6 2nd temperature control space 7 1st temperature control means 8 2nd temperature control means 9 1st duct 10 2nd Duct 25 cover part 60 first storage space 70 second storage space

Claims (3)

[Claims] 1. A storage part, a partition wall which partitions the inside of the storage part into a first temperature control space and a second temperature control space, and is movable within a predetermined range, and a cover with which an upper end of the partition wall abuts. And a partition section that partitions a space formed between the cover section and the upper surface of the storage section into a first storage space and a second storage space; and a blower disposed in the first storage space. A first temperature control means comprising means and a heat exchange means; a second temperature control means disposed in the second storage space and comprising a blower means and a heat exchange means; and a first temperature control means connected to the first temperature control means. A first duct provided with an outlet for discharging air temperature-controlled by the first temperature control means along a wall of the first temperature control space; and a second duct having a second temperature control means. An air outlet that is continuously provided and discharges air temperature-controlled by the second temperature control means along a wall of the second temperature control space; And a second duct in which the cargo temperature is controlled. 2. A storage section having a side opening and closing door and a rear opening and closing door, a first temperature control space opened and closed in the storage section by the side opening and closing door, and a second section opened and closed by the rear opening and closing door.
A partition wall which can be moved within a predetermined range while being partitioned into a temperature control space, a cover portion with which the upper end of the partition wall abuts, and a space formed between the cover portion and the upper surface of the storage portion. A partition for partitioning a first storage space and a second storage space, and a partition disposed on the side opening / closing door side of the first storage space;
A first temperature control unit including a blowing unit and a heat exchange unit; a second temperature control unit disposed in the second storage space and including a blower unit and a heat exchange unit; and the first temperature control unit. A side outlet that is connected to the side opening / closing door and that discharges air temperature-controlled by the first temperature control means along a wall of a first temperature control space; A first duct formed with a side door-side outlet that discharges air temperature-controlled by the first temperature control unit along an opening surface of the side opening / closing door; and the second temperature control unit. And a side outlet that extends to the rear opening / closing door side end and discharges air temperature-controlled by the second temperature control means along the wall of the second temperature control space. A rear door side blower for discharging the air temperature controlled by the second temperature control means along the opening surface of the rear opening / closing door. Cargo temperature control cabinet which is characterized by comprising a second duct mouth and are formed. 3. The heat exchange means includes a cooling heat exchanger and a heating heat exchanger, and the first and second temperature control means include a blower, a cooling heat exchanger, and The heat exchanger for heating is arranged in order.
Cargo temperature control described.