KR20140036418A - Refrigerated driven device associated with external power - Google Patents

Abstract

The present invention relates to a freezing/refrigeration system driving device through the supply of external power which is configured to receive electrical energy from the outside and to have an emergency energy storing part disposed at the inside thereof, so as to prevent an operation of a freezing/refrigeration system from stopping at the time when the supply of the external power is cut off in an abnormal state. Accordingly, the freezing/refrigeration system driving device includes: a connection controller adapted to receive external power through an input signal of a user or automatic sensing; a power source selector adapted to select the power of an engine generating part and the external power inputted through the connection controller according to the input signal of the user and to supply the selected power; a power converter adapted to control a motor with the power applied thereto and to perform the charging and discharging for an energy storing part; and the energy storing part adapted to be charged and discharged by means of the power converter and to perform the power supply at the time when the power for the engine generation is exchanged into the external power. [Reference numerals] (10) Engine generating part; (100) Connection controller; (20) Motor; (200) Power supply selection part; (300) Rectifying unit; (400) Power converting unit; (500) Energy storage unit; (AA) External power source (AC or DC)

Description

REFRIGERATED DRIVEN DEVICE ASSOCIATED WITH EXTERNAL POWER}

The present invention relates to an external power supply-type refrigeration refrigerating driving device, and more particularly, to receive electric energy from the outside, and to provide an emergency energy storage device therein, when the external power cut off that may occur in an abnormal situation. The present invention relates to an external power supply-type refrigeration refrigerating driving device configured to prevent the operation from being stopped.

Increasing interest in the well-being culture and improving living standards are increasing the demand for high-quality consumer demand for vegetables, fruits and vegetables, meat, fish, and the like. Growing quantitatively. To establish a low temperature distribution system, refrigeration and refrigeration systems are required for logistics containers or logistics vehicles for transportation and distribution.

On the other hand, as for the vehicle refrigeration apparatus, a number of applications and publications other than Korea Patent Registration No. 10-0623530 (hereinafter referred to as "prior document") is disclosed.

Apparatus according to the prior art, the case; A door mounted to the front of the case to be opened and closed; A cold air inlet formed on a side of the case to suck cold air from the refrigerator; A cold air discharge port formed at a side of the case to discharge the sucked cold air into the case; A thermoelectric element installed on one side of the case to generate cold air; A fan motor installed inside the case to allow the cold air to flow; An electronic damper attached to the cold air intake port and the cold air discharge port to selectively discharge cold air supplied from the refrigerator and the thermoelectric element into the case; It comprises an input unit for inputting the drive control signal of the thermoelectric element, the fan motor, when the vegetable compartment function of the refrigerator, the cold air of the refrigerator through the cold air inlet and cold air discharge port by the fan motor can be stored refrigerated. In the case of a vehicle refrigerator function, the case may be refrigerated by using the heat exchange action of the thermoelectric element by detaching the case.

For such low-temperature distribution, land transport vehicles may be equipped with a refrigeration system such as mechanical or axial cooling or liquid nitrogen, which is directly connected to the engine, but this may be due to unstable rotation of a power engine or low temperature due to instantaneous gas vaporization. There is a fear of deterioration in holding performance.

In view of this, as shown in FIG. 1, a compressor-driven refrigeration system using a motor having a dedicated engine for a refrigeration and refrigeration system and easily controlling refrigeration performance has been developed.

However, such a motor-driven compressor refrigeration system is required to drive a dedicated engine for power generation, so that even if the vehicle is parked for a long time, or if the container is stored or shipped for a long time, the continuous fuel consumption according to engine development The emission of environmental pollutants due to the generation of exhaust gas due to engine operation is continuously generated, and the fire hazard or the risk of fire caused by engine heating when located in a limited space or an undesired space. There was a problem that can cause performance degradation.

The present invention is to solve the problem that the engine must be continuously driven to maintain a continuous refrigeration performance when the compressor motor drive type refrigeration refrigeration system having a dedicated engine is parked or stored for a long time, the external energy It can be supplied, and by having an internal emergency energy storage device, the purpose is to prevent the operation of the refrigeration refrigeration system is stopped when the external power source that can occur in an abnormal situation.

The present invention for achieving the technical problem relates to an external power supply-type refrigeration refrigeration drive device, the connection control unit for receiving an external power through the user's input or automatic detection; A power selector for selecting and supplying power of an engine generator and external power input through the connection controller according to an input signal of a user; A power converter which controls the motor by using an applied power source and performs charging and discharging to an energy storage unit; And an energy storage unit which is charged and discharged by the power conversion unit and supplies power in a situation of replacing power and external power by engine power generation. .

In addition, the connection control unit determines whether the user's input information is received or the auto-sensing signal is received, when the user's input information is received, receives the user input power information, and analyzes the actual incoming power, It is characterized in that whether the actual introduced power is the same power state as the user input power information.

The connection control unit may be configured to connect the external power introduced to the power selection unit in the same power state.

In addition, the connection controller determines whether the user's input information is received or the auto-sensing signal is received, and when the auto-sensing signal through the mechanical external power connection of the user is received, automatically analyzes the incoming power, When the analyzed power is within the normal range, the external power introduced to the power selection unit may be connected.

The user input power information may include a type of power (AC or DC) and a voltage range.

In addition, the power selector, characterized in that for monitoring each of the power supplied.

The power selector may be configured to transmit warning information regarding the power supply to the control unit of the refrigeration refrigerating system when the supplied power is cut off or when power is supplied in an abnormal state.

In addition, the power selector, characterized in that the power supply is cut off when the power is out of the preset limit value.

In addition, the power converter is characterized in that for driving the motor by controlling the output of the motor using the applied power in accordance with the required output for the refrigeration refrigeration drive.

In addition, the power converter, by comparing the required output for the refrigeration refrigeration drive with the applied power, it characterized in that the charge and discharge to the energy storage unit.

In addition, the power converter, it is characterized in that the discharge and charging of an unacceptable level is not generated, and maintains the energy storage unit at a certain level of state of charge (SOC).

In addition, the energy storage unit, when a larger power than the external power input through the power or the connection control unit by the engine generator is momentarily required, increase the external power supply input through the power or connection control unit by the engine generator. When the power is supplied, and less power than the external power input through the power and the connection control unit by the engine power generation unit is required, the external power input through the power or connection control unit by the engine power generation unit is required. It is characterized in that the power is stored before the time point of the reduction / stop / shutdown.

In addition, the energy storage unit, when the external power source or engine power generation is blocked or stopped in an unintended situation, by detecting this, so as to perform a stop operation of the stable refrigeration refrigeration system or to switch to external power source or engine power generation, the entire refrigeration Supplying emergency power to the refrigeration system.

And a rectifier for passing the power supplied from the power selector; And further comprising:

When the refrigeration refrigeration system for transportation of a compression motor driven method using a dedicated engine is operated for a long time in a stopped state, energy can be improved, system optimization, and environmental pollution can be reduced by receiving energy from an external power source.

On the other hand, according to the present invention as described above, the electric energy supplied from the outside may be an AC commercial power in the case of land transport, in the case of a container shipped for sea transport, the AC or DC power generated in the ship Can be solved using

In this way, since the power generation using the dedicated engine is not performed, the exhaust gas generated in each vehicle or the container is reduced, the heat generation is significantly reduced, and more efficient use of energy is possible.

In addition, the land transport can receive electric energy from the charging infrastructure that is being built for charging electric vehicles or plug-in vehicles, it is not necessary to build a separate infrastructure for supplying electric energy, even if the infrastructure is incomplete It is possible to maintain the operation of the refrigeration refrigeration system by utilizing a portable charging device for vehicles that can be used in connection with.

In the case of a container to which a refrigeration system is applied, a large-capacity fuel tank for driving a dedicated engine is required in consideration of the long time waiting time required for transportation. If possible, a large fuel tank is not required, which can lead to a reduction in the weight of the container itself, which has the additional effect of increasing the total amount of logistics that can be shipped to the vessel.

1 is an overall configuration of a conventional dedicated engine refrigeration drive system.
2 is an overall configuration diagram conceptually showing an external power supply-type refrigeration refrigerating driving apparatus according to an embodiment of the present invention.

Specific features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. It is to be noted that the detailed description of known functions and constructions related to the present invention is omitted when it is determined that the gist of the present invention may be unnecessarily blurred.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

Referring to Figure 2 with respect to the external power-linked refrigeration refrigeration drive device according to an embodiment of the present invention.

2 is an overall configuration diagram conceptually showing an external power supply-type refrigeration refrigerating driving device (D) according to an embodiment of the present invention, as shown in the connection control unit 100, power selection unit 200, rectifier ( 300, the power converter 400 and the energy storage unit 500.

The connection controller 100 is for external power connection and receives an external power source (AC or DC) through user input or automatic detection.

In detail, the connection controller 100 determines whether input information of a user is received or an auto-sensing signal is received.

When the user's input information is received, the connection controller 100 receives user input power information on a type of power (AC or DC), a voltage range, and the like, and analyzes the power actually supplied to the user. It is determined whether the power is the same as the input power information.

As a result of the determination, when the same power state, the incoming external power is connected to the power selector 200, and when not the same power state, the power is not connected to the power selector 200.

On the other hand, when a user's automatic detection signal through the mechanical external power connection is received, the connection control unit 100 automatically analyzes the incoming power, if the analyzed power is in the normal range, to the power selection unit 200 Connect the introduced external power, if not in the normal range, do not connect the power to the power selector 200.

On the other hand, when the external power source to be connected has a hardware having a specific shape, such as an electric vehicle charging system, it may have a mechanical structure corresponding thereto, and the control pilot, proximity detection, etc., which is pre- performed for power supply in the charging system, may be used. The function correspondence is also performed by the connection control unit 100.

The connection control unit 100 may have various types of mechanical connection structures, input devices, presentation devices, etc. according to a user's request and use environment, and the present invention does not limit this.

The power selector 200 selects and supplies the power of the engine power generator 10 and the external power input through the connection controller 100 according to a user input signal.

In addition, the power selector 200 monitors each of the power supplies.

That is, the power selection unit 200 transmits the warning information about the power supply to the control unit 30 of the refrigeration refrigeration system when the supplied power is cut off or when the power is supplied in an abnormal state. In addition, if the power supply is outside the preset limit of the degree that the risk situation is likely to occur in the entire refrigeration refrigeration system is cut off, thereby ensuring that the entire refrigeration refrigeration system is safely maintained.

The rectifier 300 passes power supplied from the power selector 200.

The power conversion unit 400 controls the motor 20 by using the power applied through the rectifier 300, and performs charging and discharging to the energy storage unit 500.

Specifically, the power converter 400 drives the motor 20 by controlling the output of the motor 20 by using the power applied through the rectifying unit 300 according to the required output for the refrigeration refrigeration drive. In this case, the required output may be transmitted from the control unit 30 of the entire refrigeration system.

In addition, the power converter 400 compares the required output for the refrigeration refrigeration drive with the power applied from the rectifier 300, and performs charging and discharging to the energy storage unit 500.

In addition, the power conversion unit 400 manages to prevent the discharge and charging of an unacceptable level, and the external power supply situation input through the power and connection control unit 100 by the engine power generation unit 10 having high variability. The energy storage unit 500 is maintained at a level of state of charge (SOC) so that instantaneous response is possible.

The energy storage unit 500 is charged and discharged by the power conversion unit 400, and delays or connects to the point of stopping the operation of the engine power generation unit 10 that was driving the refrigeration system and changing it to an external power source. In order to prevent the deterioration of the refrigerating refrigeration performance that may occur when a delay until the generation of power through the operation of the internal engine power generation unit 10 is cut off from the external power source through the control unit 100, In the replacement situation, supply power.

At this time, the energy storage unit 500 is a power source by the engine power generation unit 10 when a power source by the engine power generation unit 10 or a larger power than the external power input through the connection control unit 100 is momentarily required. The power is supplied until the increase in the external power supply input through the connection controller 100 is achieved.

On the contrary, when less power is required than the power input by the engine generator 10 and the external power input through the connection controller 100, the power input by the engine generator 10 or the input by the connection controller 100 is input. It operates as a load that stores the power before the time point at which the external power is reduced, stopped, or cut off.

On the other hand, the energy storage unit 500 detects when the external power source or engine power generation is blocked or stopped in an unintended situation, thereby performing a stop operation of the stable refrigeration refrigeration system or switching to external power source or engine power generation. Provide emergency power to the entire refrigeration system.

All input, analysis and generated information in the present embodiment is transmitted and displayed to the control unit 30 of the entire refrigeration system, it may be transmitted to a separate user terminal or manager terminal 40.

While the present invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It will be appreciated by those skilled in the art that numerous changes and modifications may be made without departing from the invention. Accordingly, all such appropriate modifications and changes, and equivalents thereof, should be regarded as within the scope of the present invention.

D: Refrigeration Refrigeration Drive System
100: connection control unit 200: power selection unit
300: rectifier 400: power converter
500: energy storage 10: engine power generation
20: motor 30: control unit of the refrigeration system

Claims (14)

In a drive device for driving a refrigeration refrigeration system using a power source and an external power source by the engine power generation,
A connection controller configured to receive external power through a user input or automatic detection;
A power selector for selecting and supplying power of an engine generator and external power input through the connection controller according to an input signal of a user;
A power converter which controls the motor by using an applied power source and performs charging and discharging to an energy storage unit; And
An energy storage unit charged and discharged by the power conversion unit and supplying power in a situation of replacing power and external power by engine power generation; External power supply-type refrigeration refrigeration drive device comprising a.
The method of claim 1,
The connection control unit,
It is determined whether the user's input information is received or the auto-sensing signal is received, and when the user's input information is received, the user receives the input power information, and analyzes the power that is actually supplied to the user. External power supply-type refrigeration refrigeration drive device characterized in that it determines whether the same power state as the input power information.
3. The method of claim 2,
The connection control unit,
As a result of the determination, in the same power state, the external power supply-type refrigeration refrigerating drive device, characterized in that for connecting the introduced external power to the power selection unit.
The method of claim 1,
The connection control unit,
Determines whether the user's input information is received or the auto-sensing signal is received, and when the auto-sensing signal is received through the user's mechanical external power connection, the incoming power is automatically analyzed and the analyzed power is in the normal range. In the case, the external power supply-type refrigeration refrigeration drive device, characterized in that for connecting the external power introduced into the power selection unit.
3. The method of claim 2,
The user input power information,
Type of power supply (AC or DC), the external power supply-type refrigeration refrigeration drive device comprising a voltage range.
The method of claim 1,
The power selector,
External power supply-type refrigeration refrigeration drive device, characterized in that for monitoring the respective power supply.
The method according to claim 6,
The power selector,
External power supply-type refrigeration refrigerating drive device, characterized in that when the power supply is cut off, or when the power supply is not normal, transmits the warning information to the control unit of the refrigeration system.
The method according to claim 6,
The power selector,
External power supply-type refrigeration refrigeration drive device, characterized in that the power supply is cut off when the power is out of the preset limit value.
The method of claim 1,
Wherein the power conversion unit comprises:
According to the required output for the refrigeration refrigerating drive, by controlling the output of the motor by using the applied power, the external power supply-type refrigeration freezing drive device characterized in that for driving the motor.
The method of claim 1,
Wherein the power conversion unit comprises:
An external power supply-type refrigeration refrigeration drive device, characterized in that the charging and discharging to the energy storage unit is performed by comparing the required output for the refrigeration refrigeration drive with the applied power.
The method of claim 1,
Wherein the power conversion unit comprises:
An external power supply-type refrigeration refrigeration drive device, characterized in that to manage the discharge and charging of an unacceptable level, and to maintain the energy storage in a state of charge (SOC) of a certain level.
The method of claim 1,
The energy storage unit may include:
When a power larger than the external power input through the power generation unit or the connection control unit by the engine power generation unit is momentarily required, until the increase of the external power supply input through the power supply or connection control unit by the engine generation unit is achieved. When the power supply by the engine power generation unit and less power than the external power input through the connection control unit is required, the power supply by the engine power generation unit or the reduction / stop / cut off of the external power input through the connection control unit External power supply-type refrigeration refrigerating drive device characterized in that the power is stored before the time made.
The method of claim 1,
The energy storage unit may include:
When the external power source or engine power generation is interrupted or stopped in an unintended situation, the emergency power supply to the entire refrigeration system can be sensed so that the stable refrigeration system can be stopped or switched to external power source or engine power generation. External power supply-type refrigeration refrigeration drive device, characterized in that for supplying.
The method of claim 1,
A rectifier for passing power supplied from the power selector; External power supply-type refrigeration refrigeration drive device further comprising.

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