JPH051873A - Starting controller for on-vehicle cold roll box - Google Patents

Abstract

PURPOSE:To miniaturize a generator equipped on a vehicle, reduce the space of installation and increase the energy saving property, economical property and general-purpose properties. CONSTITUTION:A vehicle, such as a carrier car M or the like, is provided with a power supply unit 2 employing a generator driven by an engine while a plurality of power supply sockets 3a... for connecting respective cold roll boxes Ca, Cb... are arranged on a loading platform of the carrier car M. A control unit 6, starting respective cold roll boxes Ca... independently in the unit of one set based on restarting signals Sa... obtained from detachable current transformers 5a... attached to the power supply chords 4a... of respective cold roll boxes Ca... and controlling the starting intervals of respective cold roll boxes Ca... in accordance with a predetermined interval time (ti), is connected between the power supply unit 2 and respective power supply sockets 3a....

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-vehicle cold roll box start-up control device for controlling the start-up of a plurality of independent cold roll boxes containing a cooling machine.

[0002]

2. Description of the Related Art Conventionally, a cold roll box has been mainly used for transporting a cooled product from a distribution center to each distribution place. A cold roll box is a refrigerator that has a built-in heat insulation box or a cooler that can be moved by casters, etc., and the cold roll box that contains the cooled material is mounted on a transport vehicle such as a truck at the distribution center as it is and transported to the intended delivery location. (See JP-A-63-169464, etc.).

[0003]

By the way, when a plurality of cold roll boxes are mounted on a transport vehicle, the driving power is supplied from a generator provided in the transport vehicle. This generator is energy-saving and economical. From the viewpoint of securing installation space, etc., it is desirable to be as small and lightweight as possible.

However, in the case of a cold roll box having a built-in cooler, a relatively large starting current flows through the compressor of the cooler at the time of start-up, and when a plurality of cold roll boxes are started simultaneously or close in time, they are started. , A large current flows temporarily. For this reason, a large generator with sufficient capacity (capacity) is required as a generator,
It is necessary to secure a large installation space for the carrier, and there is a problem that energy saving and economic efficiency are deteriorated due to cost increase and weight increase of the entire carrier.

The present invention solves the problems existing in the prior art as described above, and it is possible to reduce the size of a generator provided in a vehicle, reduce the installation space, and save energy and economy. An object of the present invention is to provide a vehicle-mounted cold roll box start-up control device with high versatility.

[0006]

A start-up control device 1 for an on-vehicle cold roll box according to the present invention is a power supply unit 2 using a generator driven by an engine in a vehicle such as a transport vehicle M.
, And a plurality of power outlets 3a, 3b ... 3f for connecting cold roll boxes Ca having a built-in cooler to the bed of the carrier M, and between the power source unit 2 and each power outlet 3a. Based on the restart signals Sa, Sb ... Obtained from the detachable current transformers (CT) 5a, 5b ... 5f attached to the power cords 4a, 4b ... 4f of the cold roll boxes Ca ... Independently, each cold roll box Ca is activated at a predetermined interval time ti.
It is characterized in that a control unit 6 for controlling the activation interval of ... Is connected.

The control unit 6 once receives the cold roll box C in response to a restart signal Sa from an arbitrary cold roll box, for example, the cold roll box Ca.
The start of a is stopped for a predetermined interval time ti,
After that, the function of activating normally is provided, and the restart signal S of another cold roll box, for example, the cold roll box Cb, is provided during the interval time ti.
When b is output, it has a function of sequentially activating each cold roll box Ca, Cb according to the activation interval according to a predetermined interval time ti and the set priority.

[0008]

According to the in-vehicle cold roll box start-up control device 1 of the present invention, first, since the transport vehicle M is provided with a plurality of power outlets 3a, each of the mounted cold roll boxes Ca has a corresponding power source. It is connected to the outlet 3a.

As a result, each cold roll box Ca
, Are individually operated by the drive power from the power supply unit 2. In this case, each cold roll box C
When the temperature inside the box reaches the lower limit temperature Td ° C., the cooling machine built in the cold roll box Ca is stopped, and when it reaches the upper limit temperature Tu ° C., a ... Roll box Ca
Start ...

By the way, each cold roll box Ca
... operate independently, so when restarting after the initial startup, multiple cold roll boxes Ca ...
May start simultaneously or close in time. Therefore, the control unit 6 temporarily stops the activation of the cold roll box Ca for a predetermined interval time ti by the restart signal Sa from the arbitrary cold roll box Ca, and thereafter activates the other cold roll boxes Cb. When the restart signal Sb of the other cold roll box Cb is output during the interval time ti while confirming that it does not occur,
The cold roll box Ca and the cold roll box Cb are considered to be activated simultaneously, and the cold roll boxes Ca and Cb are sequentially activated in accordance with the set priority. This prevents simultaneous activation.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, preferred embodiments according to the present invention will be described in detail with reference to the drawings.

First, the structure of a vehicle-mounted cold roll box activation control device 1 according to the present invention will be described with reference to FIGS.

In FIG. 3, M is a transportation vehicle (transportation truck), and a container portion (loading bed) Mc of the transportation vehicle M can be equipped with a total of six cold roll boxes Ca, Cb ... Cf.

Each cold roll box Ca ... Is a refrigerator capable of cooling a cooling object housed in the box by a built-in cooler. In addition, each cold roll box Ca
Since ... is operated by a commercial power source, it is equipped with a power cord 4a having a power plug 21a connected to a commercial power outlet. In addition, each cold roll box C
A can be moved by the casters 23. Therefore, each cold roll box Ca can be individually mounted on the container part Mc and can be unloaded from the container part Mc.

On the other hand, as shown in FIG. 1, the transport vehicle M is equipped with a power source unit 2 using a generator driven by an engine. The power supply unit 2 serves as a 100 V AC power supply and is connected via the control unit 6 to a plurality of power outlets 3a corresponding to the cold roll boxes Ca ... Inside the container unit Mc. On the other hand, in the vicinity of the power outlets 3a ... Inside the container part Mc, the current transformer 5 as shown in FIG.
a, and the current transformers 5a ... Are connected to the control unit 6 via cords 22a. The current transformers 5a are attachable to and detachable from the power cords 4a and output a current detection signal proportional to the magnitude of the current flowing through the power cords 4a, that is, a restart signal Sa, when attached.

The control unit 6 has a computer function and stores a sequence control program for controlling the activation of each cold roll box Ca.

Therefore, each cold roll box Ca ...
For example, in a distribution center, the power plugs 21a can be connected to an ordinary power outlet for commercial power source to be operated, and a predetermined cooling object can be housed and cooled. On the other hand, at the time of transportation, the cold roll boxes Ca ... Can be mounted on the container Mc and the power plugs 21a ... Can be connected to the corresponding power outlets 3a. And
When transported to the intended delivery place, the cold roll box Ca can be unloaded from the container Mc and connected to a commercial power outlet for use.

Next, the overall operation of the activation control device 1 according to the present invention will be described with reference to FIGS. 4 and 5.

In the embodiment, the interval time ti is set to 5 seconds, and the starting order (priority order) is set in the alphabetical order of the letters of the cold roll boxes Ca, Cb, Cc ... Interval time t
i takes into consideration the duration of the starting current at the time of startup and the margin time for it, and it is not limited to the example and can be arbitrarily selected.

First, the engine of the carrier M is started (step 31). Then, after the waiting time of 3 minutes (step 32), the first cold roll box C
Start a (step 33). At the time of initial startup, the power supply to the power outlets 3a is controlled according to the sequence control program in the control unit 6, and the cold roll boxes Ca, Cb,
It is sequentially activated in the order of Cc ...

That is, the first cold roll box C
If 5 seconds, which is the interval time, has elapsed after the activation of a, the second cold roll box Cb based on the set order is activated, and the third and subsequent cold roll boxes Cc, Cd, ce, ... Are also activated. Similarly, all of the six (generally n) cold roll boxes Ca, Cb, ... Are activated by sequentially activating (steps 34, 35, 36).

After the initial activation, individual temperature control is performed based on the individual control functions built in each cold roll box Ca. In the temperature control in this case, as shown in FIG. 5, a lower limit temperature Td ° C. and an upper limit temperature Tu ° C. are set, and for example, the temperature T in the cold roll box Ca is set.
When the temperature reaches the lower limit temperature Td, the chiller is stopped, and when the temperature reaches the upper limit temperature Tu ° C., the chiller is operated, that is, the cold roll box Ca is activated.

On the other hand, the control unit 6 monitors the presence or absence of the restart signal Sa ... Output from the current transformers 5a.
7). When an arbitrary cold roll box, for example, the cold roll box Ca is restarted, the current flowing through the power cord 4a causes the current transformer 5a to output the restart signal Sa, and the restart signal Sa is supplied to the control unit via the code 22a. 6 is given. As a result, the control unit 6 temporarily stops the power supply to the cold roll box Ca for 5 seconds, which is the interval time, and during this period, the other current transformer 5b.
It is monitored whether or not the restart signal Sb is output from.
Then, when the other restart signals Sb ... Are not output, regular power supply to the arbitrary cold roll box Ca is performed (steps 38, 39, 40).

On the other hand, when the restart signal Sb is output from the current transformer 5b in another cold roll box, for example, the cold roll box Cb, for 5 seconds at this time, the restart signals Sa and Sb are output simultaneously. Seeing
After the lapse of 5 seconds, the priority order, that is, the cold roll box Ca and the cold roll box Cb are activated at intervals of 5 seconds (steps 41 and 42). Therefore, it is possible to prevent simultaneous activation of all the cold roll boxes Ca, and the capacity (performance) of the power supply unit 2 only needs to consider the activation current of one cold roll box. Further, since the restart signal Sa ... Is obtained from the current transformers 5a ..., it is not necessary to incorporate special parts or circuits on the cold roll box Ca .. side, and various cold roll boxes can be used as they are for versatility. Rich.

When the restart signal Sc ... Is output from another cold roll box Cc ... during or after such startup control is performed, the same operation as described above is performed based on the restart signal Sc ... Startup control is performed.

The embodiment has been described in detail above.
The present invention is not limited to such an embodiment,
The detailed configuration and method can be arbitrarily changed without departing from the scope of the present invention.

[0027]

As described above, the start-up control device for a vehicle-mounted cold roll box according to the present invention is provided with a power source section using a generator driven by an engine in a vehicle, and a cooler is built in a cargo bed of the vehicle. While arranging a plurality of power outlets to connect the cold roll box, between the power source and each power outlet, based on the restart signal obtained from the detachable current transformer attached to the power cord of each cold roll box, Since each cold roll box is independently activated individually and a control unit for controlling the activation interval of each cold roll box is connected, the following remarkable effects are achieved.

The generator provided in the vehicle has a capacity (performance) considering only the starting current of one cold roll box.
Therefore, the generator can be downsized, and the installation space can be reduced, and energy saving and economy can be improved.

Since it is not necessary to incorporate special parts and circuits in the cold roll box, various cold roll boxes can be used as they are, and thus the versatility is high.

[Brief description of drawings]

FIG. 1 is a block circuit diagram of a startup control device according to the present invention,

[Fig. 2] External view of the cold roll box mounted on a carrier,

FIG. 3 is an overall configuration diagram of a transport vehicle including the activation control device,

FIG. 4 is a flowchart showing the operation of the startup control device,

FIG. 5 is a temperature and power supply characteristic diagram of each cold roll box controlled by the startup control device,

[Explanation of symbols]

1 Start control device 2 power supply 3a ... Power outlet 4a ... Power cord 5a ... Current transformer 6 control unit M carrier Ca ... Cold roll box

Claims (3)

[Claims] 1. A power supply unit using a generator driven by an engine is provided in a vehicle, and a plurality of power outlets for connecting a cold roll box having a built-in cooler are arranged on a bed of the vehicle, and the power supply unit is provided. Each cold roll box is independently activated based on the restart signal obtained from the detachable current transformer attached to the power cord of each cold roll box between An in-vehicle cold roll box activation control device, comprising a control unit connected to control the activation interval of each cold roll box depending on the interval time. 2. The control unit temporarily stops the activation of the cold roll box for a predetermined interval time by a restart signal from an arbitrary cold roll box, and then normally activates the cold roll box. The start-up control device for a vehicle-mounted cold roll box according to 1. 3. The control unit temporarily stops the activation of the cold roll box for a predetermined interval time in response to a restart signal from any cold roll box, and restarts another cold roll box during the interval time. 2. The in-vehicle cold roll box activation control device according to claim 1, wherein when the signal is output, the cold roll boxes are sequentially activated in accordance with the activation interval according to a predetermined interval time and the set priority.