WO2023093473A1 - Hybrid power supply system and refrigeration transportation device - Google Patents

Abstract

The present disclosure relates to the technical field of power supply devices, and in particular to a hybrid power supply system and a refrigeration transportation device. The hybrid power supply system comprises: a diesel power-generation and power-supply unit (103) and a high-voltage lithium battery power supply box (104), which are both connected to a refrigerating unit (1022) in a refrigeration container (102), wherein the high-voltage lithium battery power supply box (104) is charged by an external alternating-current power source by means of a first interface (1051) of a first converter (105); and a control module (106), which controls the diesel power-generation and power-supply unit (103) and the high-voltage lithium battery power supply box (104) to alternately and cyclically supply power to the refrigerating unit (1022), such that two power supply modes are used inside the system to alternately and cyclically supply power to the refrigerating unit (1022), thereby improving the reliability thereof during transportation of the refrigerating unit.

Description

A hybrid power supply system and refrigerated transportation equipment

Cross References to Related Applications

This disclosure claims the priority of a Chinese patent application with application number 202111464934.7 and titled “A Hybrid Power Supply System and Refrigerated Transportation Equipment” filed on November 24, 2021, the entire contents of which are hereby incorporated by reference.

technical field

The present disclosure relates to the technical field of power supply equipment, in particular to a hybrid power supply system and refrigerated transportation equipment.

Background technique

The existing cold chain transportation includes not only land transportation, but also sea transportation. Among them, the ones with large spans need to be transported in ocean-going refrigerated containers. The power supply mode of the cold chain transportation equipment of the railway is self-power supply and centralized power supply. Most of its refrigeration uses diesel oil to drive the generator set to generate electricity, supply power to the refrigeration unit, and ensure the quality of cold chain goods.

However, most of the power supply systems are integrated in containers or single-section trains, so that the goods can only be transported directly, and a single refrigerated container cannot be unpacked in the middle. If the single-section train is unpacked separately, the reliability of refrigeration will be affected.

Contents of the invention

In view of the above problems, a hybrid power supply system and refrigerated transport equipment that overcome the above problems or at least partially solve the above problems are proposed.

In the first aspect, some embodiments of the present disclosure provide a hybrid power supply system, which may include: a casing, on which a suspension structure is arranged, and the suspension structure is used to be installed on a corner fitting of a refrigerated container, so that The casing is fixed on the outside of the refrigerated container, and the refrigerated container is used in railway transportation or ocean transportation; the diesel generator power supply unit, the high-voltage lithium battery power supply box, the first converter and the control module located in the casing; The diesel generator power supply unit and the high-voltage lithium battery power supply box are respectively connected to the refrigeration unit in the refrigerated container; the first converter is connected between the diesel generator power supply unit and the high-voltage lithium battery power supply box, so The first converter is provided with a first interface, the first interface is used to connect to an external AC power supply, so as to charge the high-voltage lithium battery power supply box through the external AC power supply; the control module is used to control the diesel generator The power supply unit and the high-voltage lithium battery power supply box alternately circulate power for the refrigeration unit.

In the second aspect, some embodiments of the present disclosure provide a refrigerated transportation equipment, which is applied in railway transportation or ocean transportation, and the equipment includes: a refrigerated container, and a refrigerating unit is arranged in the refrigerated container; as described in the first aspect The above-mentioned hybrid power supply system is hung on the end of the refrigerated container, and is used to supply power to the refrigerant group.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiment. The drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present disclosure. Also throughout the drawings, the same components are represented by the same reference figures. In the attached picture:

FIG. 1 shows a schematic diagram of a hybrid power supply system according to one or more embodiments of the present disclosure;

Fig. 2 shows a schematic top view of a housing according to one or more embodiments of the present disclosure;

Fig. 3 shows a schematic diagram of the cooperation between the suspension structure and the column according to one or more embodiments of the present disclosure;

Fig. 4 and Fig. 5 show schematic diagrams of placement positions of various components in a hybrid power supply system according to one or more embodiments of the present disclosure; and

Figure 6 shows a schematic diagram of a refrigerated transport facility in accordance with one or more embodiments of the present disclosure.

Detailed ways

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures. Meanwhile, in the description of the present disclosure, the terms "first", "second", etc. are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

Embodiment one

Some embodiments of the present disclosure provide a hybrid power supply system, as shown in FIG. 1 , which may include:

Housing 101, the housing 101 is provided with a suspension structure, and the suspension structure is used to be installed on the corner fittings of the refrigerated container 102, so that the housing 101 is suspended on the outside of the refrigerated container 102, and the refrigerated container 102 is used for railway transportation or ocean transportation middle;

A diesel generator power supply unit 103, a high-voltage lithium battery power supply box 104, a first converter 105 and a control module 106 located in the casing 101;

Wherein, the diesel generator power supply unit 103 and the high-voltage lithium battery power supply box 104 are respectively connected to the refrigeration unit 1022 in the refrigerated container 102; the first converter 105 is connected between the diesel generator power supply unit 103 and the high-voltage lithium battery power supply box 104, the The first converter 105 is provided with a first interface 1051, and the first interface 1051 is used to connect to an external AC power supply, so as to charge the high-voltage lithium battery power supply box 104 through the external AC power supply;

The control module 106 is used to control the diesel generator power supply unit and the high-voltage lithium battery power supply box to alternately cycle power supply for the refrigeration unit.

In some embodiments, the hybrid power supply system is independent of the refrigerated container 102 and can be easily assembled with the refrigerated container 102 .

In some embodiments, the hybrid power supply system may include a casing 101, which is in the shape of a trapezoid, and the surface of the casing 101 in contact with the refrigerated container 102 is the bottom surface of the trapezoid, that is, the bottom surface with a larger area. The small top surface is opposite to the contact surface, as shown in FIG. 2 , which is a top view of the housing 101 .

The structure of the trapezoidal body is adopted, so that the application of the hybrid power supply system in the process of railway transportation meets the requirement of the turning radius of the train. The structure is backpack type and can be hung on the end of the refrigerated container 102 .

Wherein, as shown in FIG. 3 , the housing 101 is provided with a suspension structure, which may include a positioning pin 1011 and a handle 1012 that drives the positioning pin 1011 to rotate, and corner fittings are provided on the corresponding refrigerated container 102. The handle 1012 is moved so that the positioning pin 1011 enters into the corner fitting for fixing, so that the casing 101 is hung on the refrigerated container 102 .

Of course, the suspension structure is located on the upper part of the casing 101 , and fastening bolts can also be provided on the lower part of the casing 101 for fixing the bottom end of the casing 101 to the refrigerated container 102 .

The housing 101 is used to install the hybrid power supply system, so that the housing 101 can be disassembled when the power system is not in use.

Next, the hybrid power supply system inside the casing 101 will be described. Inside the casing 101 is a diesel generator power supply unit 103 , a high-voltage lithium battery power supply box 104 , a first converter 105 and a control module 106 .

Wherein, the diesel generator power supply unit 103 and the high-voltage lithium battery power supply box 104 are respectively connected to the refrigeration unit 1022 in the refrigerated container 102, and the first converter 105 is connected between the diesel generator power supply unit 103 and the high-voltage lithium battery power supply box 104. The first converter 105 is provided with a first interface 1051, and the first interface 1051 is used for connecting to an external AC power source, so as to charge the high-voltage lithium battery power supply box 104 through the external AC power source.

The first converter 105 may include: an AD/DC module and a DC/DC module, wherein the AD/DC module is used to convert the alternating current connected through the first interface 1051 into direct current to charge the high voltage lithium battery power supply box 104 . The DC/DC module is used to convert the DC power of the first preset voltage generated by the diesel generator power supply unit 103 into the DC power of the second preset voltage to charge the high voltage lithium battery power supply box 104 .

The diesel generator set 103 may include: a diesel generator set 1031, a generator set controller 1032, and an energy storage oil tank 1033, wherein the diesel generator set 1031 is used to generate electricity through fuel oil, and the generator set controller 1032 controls the diesel generator set 1031 Start-stop and output.

The high-voltage lithium battery power supply box 104 may include a high-voltage lithium battery 1041 and a battery management unit 1042 . The battery management unit 1042 is used for monitoring the power status of the high-voltage lithium battery 1041 and controlling the output of the high-voltage lithium battery 1041 .

The refrigerated container 102 is used for storing refrigerated items, and requires a refrigerating unit 1022 and a refrigerating controller. The refrigeration controller controls the start and stop of the refrigeration unit 1022 .

Wherein, the generator set controller 1032 and the battery management unit 1042 are both connected to the control module 106 , and the control module 106 sends control instructions to the generator set controller 1032 and the battery management unit 1042 .

The control module 106 is specifically used to control the diesel generator power supply unit 103 and the high-voltage lithium battery power supply box 104 to alternately cycle power supply for the refrigeration unit 1022 .

In some implementations, the hybrid power supply system may also include: a central monitoring device 107, which may be set at a position that can be observed by the user, such as in the driver's cab of the vehicle, etc. Not limited.

The central monitoring device 107 is communicatively connected with the control module 106, and the central monitoring device 107 is used to monitor whether the battery management unit 1042 has a signal of insufficient power when the high-voltage lithium battery power supply box 104 supplies power to the refrigeration unit 102; if so, Then the user is reminded to charge the high-voltage lithium battery power supply box 104 with an external AC power source through the first interface 1051 .

Normally, the refrigerating unit 102 is powered by the high-voltage lithium battery power supply box 104. When the power supply of the high-voltage lithium battery power supply box 104 is insufficient, the battery management unit 1042 will feed back the low power situation to the central monitoring device 107. Thereby, the user is reminded to charge the high-voltage lithium battery power supply box 104 in time. If there is an external AC power source around, connect the external AC power source through the first interface 1051 of the first converter 105 for charging.

In another situation, the high-voltage lithium battery power supply box 104 is provided with a second interface for connecting to an external DC power supply. The DC power supply charges the high-voltage lithium battery power supply box 104.

If the above two situations do not exist, that is, when the high-voltage lithium battery power supply box 104 cannot be charged, the control module 106 controls the diesel generator power supply unit 103 to turn on to supply power for the refrigeration unit 1022 and charge the high-voltage lithium battery power supply box 104 at the same time.

After the high-voltage lithium battery power supply box 104 is charged, the control module 106 controls the diesel generator power supply unit 103 to close, and controls the high-voltage lithium battery power supply box 104 to supply power to the refrigeration unit 1022, so that the diesel generator power supply unit 103 and the high-voltage lithium battery power supply box 104 are paired. Alternate cycle power supply for refrigeration units.

Wherein, the charging and discharging of the high-voltage lithium battery power supply box 104 and the discharging of the diesel generator power supply unit 103 are all high-voltage lines.

When the diesel power supply unit 103 supplies power to the load (refrigeration unit 1022) and the high-voltage power supply unit 104 at the same time, the control module 106 adjusts the charging power of the high-voltage lithium battery 1041 according to the change of the load power, so that the diesel generator set 1031 operates at the optimum fuel state, greatly reducing fuel consumption and improving economy.

The housing 101 is also provided with an electronic radiator. Under high temperature conditions, the electronic radiator is controlled by the control module 106 to force the diesel generator power supply unit 103 and the high-voltage lithium battery power supply box 104 to cool down. Avoid accidents caused by high temperature.

In winter, the heat generated by the diesel generator power supply unit 103 and the high-voltage lithium battery power supply box 104 can be taken away in an external low temperature environment, and heat dissipation is not required; The device heats the diesel generator power supply unit 103 and the high-voltage lithium battery power supply box 104 to ensure the normal power supply demand of the refrigeration unit 1022.

The hybrid power supply system may also include: a low-voltage storage battery 108 located in the casing 101, such as a lead-acid battery, which realizes low-voltage charging and discharging, and is used for the generator set controller 1032, the battery management unit 1042, the control module 106 and the second A converter 105 supplies power, specifically low voltage power supply.

The hybrid power supply system may also include: a solar power generation panel 109, located outside the housing 101, specifically the top, for absorbing solar energy and converting it into electrical energy; a heat-absorbing power generation panel 110, located outside the housing 101, for absorbing diesel power generation The heat generated by the power supply unit 103 is converted into electrical energy; the solar power generation panel 109 and the heat-absorbing power generation panel 110 are also used to store electrical energy in the low-voltage battery 108 .

Since the power used by these controllers is less, the low voltage power supply is sufficient.

In some embodiments, the hybrid power supply system may further include: a second converter 111 located in the housing 101, specifically an inverter converter, the diesel generator power supply unit 103 and the high-voltage lithium battery power supply box 104 are respectively connected to the second converter 111 The two converters 111 are connected, and the second converter 111 is connected to the refrigeration unit 1022 for converting the DC power provided by the diesel generator power supply unit 103 and the high-voltage lithium battery power supply box 104 into AC power to supply the refrigeration unit 1022.

In some embodiments, the hybrid power supply system may also include: a temperature sensor, a smoke sensor, and a fire extinguishing subsystem arranged in the casing 101; the temperature sensor is used to monitor the diesel generator power supply unit 103 and the high-voltage lithium battery power supply box 104 ambient temperature; the smoke sensor is used to sense whether there is smoke in the housing 101; the control module 106 controls the fire extinguishing sub- The system turns on the fire suppression.

The internal placement of the hybrid power supply system is described below. As shown in FIG. 4 and FIG. 5 , the suspension structure A is arranged on both sides of the upper end of the casing 101 , and the first-layer support frame and the second-layer support frame are arranged in the casing 101 from bottom to top. Wherein, the diesel generator power supply unit 103 is arranged on the second support frame, the high-voltage lithium battery power supply box 104 is arranged on the first layer support frame, and the energy storage oil tank 1033 in the diesel generator power supply unit 103 is arranged at the bottom of the casing 101 and the second floor. Between the support frames of the first layer, the second converter 111 and the low-voltage storage battery 108 are respectively arranged on both sides of the diesel generator power supply unit 103, the control module 106 is also arranged on the second layer of support frames, and other structures in the housing 101 are in the This is not limited, and can be placed in a spare position of the housing 101 .

One or more technical solutions in the embodiments of the present disclosure have at least the following technical effects or advantages:

A hybrid power supply system provided by some embodiments of the present disclosure may include: a casing 101, on which a suspension structure is arranged, and the suspension structure is used to be installed on the corner fittings of the refrigerated container 102, so that the casing 101 is fixed On the outside of the refrigerated container 102, the refrigerated container 102 is used in railway transportation or ocean transportation; the diesel generator power supply unit 103, the high-voltage lithium battery power supply box 104, the first converter 105 and the control module 106 located in the casing 101, the diesel Both the generator power supply unit 103 and the high-voltage lithium battery power supply box 104 are used to connect the refrigeration unit 1022 in the refrigerated container 102, the first converter 105 is connected between the diesel generator power supply unit 103 and the high-voltage lithium battery power supply box 104, and the first converter The device 105 is provided with a first interface 1051, and the first interface 1051 charges the high-voltage lithium battery power supply box 104 through an external AC power supply; the control module 106 is used to control the diesel generator power supply unit 103 and the high-voltage lithium battery power supply box 104 as a refrigeration unit 1022 alternate cycle power supply, so that the power supply system is set independently from the refrigerated container 102, the power supply system uses two kinds of power supply units to provide alternate cycle power supply for the refrigerating unit 1022, which improves the transportation reliability of the refrigerating unit.

Embodiment two

Based on the same inventive concept, some embodiments of the present disclosure also provide a refrigerated transportation device, which is applied in railway transportation or ocean transportation, as shown in FIG. The refrigerating unit 1022 ; like the hybrid power supply system structure 602 in the first embodiment, is hung on the end of the refrigerated container 601 for powering the refrigerating unit 1022 .

Wherein, in addition to the refrigeration unit 1022, the refrigeration container 601 is also provided with a refrigeration controller. The structure 602 of the hybrid power supply system is as described in Embodiment 1, and will not be described in detail here.

In yet another aspect of the present disclosure, a computing device is provided. The computing device includes a processor and a memory having stored thereon computer program code that, when executed by the processor, causes the processor to perform a program according to one or more embodiments of the present disclosure. The method corresponding to the control module.

While preferred embodiments of the present disclosure have been described, additional changes and modifications can be made to these embodiments by those skilled in the art once the basic inventive concept is appreciated. Therefore, it is intended that the appended claims be interpreted to cover the preferred embodiment and all changes and modifications which fall within the scope of the present disclosure.

It is obvious that those skilled in the art can make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and equivalent technologies thereof, the present disclosure also intends to include these modifications and variations.

Claims (10)

A hybrid power supply system comprising: The casing, the casing is provided with a suspension structure, the suspension structure is used to be installed on the corner fittings of the refrigerated container, so that the casing is fixed on the outside of the refrigerated container, and the refrigerated container is used in railway transportation or ocean transportation ; A diesel generator power supply unit, a high-voltage lithium battery power supply box, a first converter and a control module located in the housing; The diesel generator power supply unit and the high-voltage lithium battery power supply box are respectively connected to the refrigeration unit in the refrigerated container; the first converter is connected between the diesel generator power supply unit and the high-voltage lithium battery power supply box, The first converter is provided with a first interface, and the first interface is used to connect to an external AC power supply, so as to charge the high-voltage lithium battery power supply box through the external AC power supply; The control module is used to control the diesel generator power supply unit and the high-voltage lithium battery power supply box to alternately cycle power supply for the refrigeration unit. The hybrid power supply system according to claim 1, wherein the diesel generator set comprises: a diesel generator set, a generator set controller, and an energy storage tank; The high-voltage lithium battery power supply box includes: a high-voltage lithium battery and a battery management unit. The hybrid power supply system as claimed in claim 2, further comprising: The low-voltage storage battery located in the casing is used to supply power to the generator set controller, the battery management unit, the control module and the first converter. The hybrid power supply system according to claim 3, further comprising: The solar power generation panel is located outside the casing and connected to the low-voltage battery for absorbing solar energy and converting it into electrical energy and storing it in the low-voltage battery; The heat-absorbing power generation board is located outside the casing and connected to the low-voltage battery for absorbing the heat generated by the diesel generator and power supply unit, and converting it into electrical energy and storing it in the low-voltage battery. The hybrid power supply system as claimed in claim 2, further comprising: A central monitoring device is communicatively connected with the control module; The central monitoring device is used to monitor whether the battery management unit has a signal of insufficient power when the high-voltage lithium battery power supply box supplies power to the refrigeration unit; if so, remind the user to use the The external AC power supply charges the high-voltage lithium battery power supply box. The hybrid power supply system according to claim 2, wherein the control module is configured to: When the high-voltage lithium battery power supply box has not been charged for more than a preset time, control the diesel generator power supply unit to turn on, supply power to the refrigeration unit, and charge the high-voltage lithium battery power supply box at the same time; After the box is charged, the control module controls the diesel generator power supply unit to shut down, and controls the high-voltage lithium battery power supply box to supply power to the refrigeration unit, so that the diesel generator power supply unit and the high-voltage lithium battery power supply box are connected to each other. The alternating cycle power supply of the refrigeration unit. The hybrid power supply system according to claim 5, wherein the high-voltage lithium battery power supply box is provided with a second interface for connecting to an external DC power supply, and when the central monitoring device monitors that the battery management unit shows insufficient power , the user is reminded to use an external DC power supply to charge the high-voltage lithium battery power supply box through the second interface. The hybrid power supply system according to claim 1, further comprising: The second converter located in the casing, the diesel generator power supply unit and the high-voltage lithium battery power supply box are respectively connected to the second converter, and the second converter is connected to the refrigeration unit for converting the The DC power provided by the diesel generator power supply unit or the high-voltage lithium battery power supply box is converted into AC power. The hybrid power supply system according to claim 1, further comprising: The temperature sensor, smoke sensor and fire extinguishing subsystem arranged in the shell; The temperature sensor is used to monitor the temperature around the diesel generator power supply unit and the high-voltage lithium battery power supply box; The smoke sensor is used to sense whether there is smoke in the housing; When the control module receives that the temperature monitored by the temperature sensor exceeds the preset value, and the smoke sensor detects smoke, it controls the fire extinguishing subsystem to start the fire extinguishing. A refrigerated transportation device, which is used in railway transportation or ocean transportation, the equipment includes: A refrigerated container, the refrigerated container is provided with a refrigerating unit; The hybrid power supply system according to any one of claims 1 to 9, which is hung on the end of the refrigerated container and used to supply power to the refrigerating unit.

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