KR101381592B1 - Container for energy storage device - Google Patents

Abstract

The present invention relates to a container for an energy storage apparatus and, more specifically, to a container for an energy storage apparatus which is easily moved, includes various systems to prevent heat, moisture, condensation, external vibration and also for supporting internal loads, securing space, and ensuring safety, and unifies all systems by installing just an energy storage apparatus module to increase the mobility while ensuring easier installation and systematization, and to save energy and overcome various environmental problems to enable application for a high-storage system.

Description

Container for Energy Storage Device

The present invention relates to a container for an energy storage device, and more particularly to a container for an energy storage device having a temperature and humidity barrier, condensation prevention, external vibration prevention, internal load and space, various safety device systems and the like.

Commonly used containers are standardized in container boxes as shown in FIG. 1 and have been developed with a focus on the use of storing and moving cargo without special facilities. Developments are underway to use for the purpose. This is because containers have a wide range of uses due to their ease of movement and standardization. In particular, in the case of a container house, the interior of the container is changed and used a lot for residential purposes. Manufacturers who develop container-type equipment such as generators to facilitate mobility are achieving the desired purpose by remodeling containers.

However, most of these containers have temperature control due to environmental problems such as excessive cooling cost due to hot internal temperature in summer, heating difficulty due to low temperature in winter, environmental condensation and moisture problem on the ground. Significant difficulties arise in applications for systems that are necessary and highly affected by moisture.

On the other hand, the existing container is simply used for storage purposes, so the environmental impact has not been considered sensitively, but recently, as a part of a mobile energy storage device that maximizes the advantages of the container, it is a megawatt class (1MW power) at several hundred kWh. The secondary battery module storage system that can be stored is applied to a container system that detects an energy storage device. However, as problems occur in humidity, temperature control, and external air inflow, corrosion of electronic circuit boards and electrode parts, and battery cells And short circuit due to electrode short circuit, fire, explosion risk and system damage, overload due to excessive load due to damage of module, deterioration of life, condensation, etc. In addition, consuming a large amount of energy for humidity and temperature control violates the fundamental purpose of using energy storage devices, making the industrialization meaningless.

Therefore, the applicant of the present invention is to overcome the above problems and at the same time to develop a container for an energy storage device applying a renewable energy to enable energy saving, Figure 2 is a large-capacity energy storage device of the 2010 ~ 2012 This model is applied to the test bed for commercialization.

However, common phenomena occurred by using the general container structure, such as condensation, corrosion of PCB and electrode, overheating, short circuit of electrodes. These problems are due to the fact that the existing transport container is used as it is or manufactured in the same structure, and because the blower is installed, the structural consideration considering the characteristics of the energy storage device is not reflected in the design.

Accordingly, the applicant of the present invention has completed the present invention by developing a container equipped with a system that can solve the above problems as the need for developing a container for a large-capacity energy storage device with the proliferation of the storage industry.

Patent Document 1: Republic of Korea Patent Publication No. 10-2013-0126812 "Energy storage device (published date: 2013.11.21)" Patent Document 2: Republic of Korea Patent Publication No. 10-2013-0128153 "Energy storage device and its operating method (published date: 2013.11.26)" Patent Document 3: Republic of Korea Patent Publication No. 10-2009-0116625 "Energy storage system (published: 2009.11.11)"

The present invention is to build a variety of safety devices and systems in a container that is easy to move and standardized, so that all systems can be unified simply by installing an energy storage module, not only easy mobility and installation and systemization, The present invention relates to a container for an energy storage device that can save energy and overcome various environmental problems in order to apply it to a large capacity system.

The present invention is a container in which the upper plate 10, the lower plate 20, the side wall 30 and the end door 40 are bonded to each other and closed to form an inner space 50,

The upper plate 10 and the side wall 30 is made of a double partition 11,

Energy storage device, characterized in that the inner space 50 is a predetermined distance from the end door 40 is installed a double transparent door 51, a cradle 52 for mounting the energy storage device is also located The container for the solution is a means for solving the problem.

In addition, the present invention is a container in which the upper plate 10, the lower plate 20, the side wall 30 and the end door 40 are bonded to each other and closed to form an internal space 50,

The upper plate 10 and the side wall 30 is made of a double partition 11,

The inner space 50 is provided with a first double transparent door 51a spaced a predetermined distance from the end door 40,

The inner space 50 is divided into a first inner space 50a and a second inner space 50b by a second double transparent door 53.

A cradle 52 for mounting an energy storage device is located in the first inner space 50a, and a generator 54 is positioned in the second inner space 50b. Is to solve the other problem.

In addition, the container for the energy storage device,

The solar panel 12 is formed on the outer surface of the top plate 10,

It is preferable that the lower surface of the lower plate 20 is further provided with a support 21 for spaced apart the container to the ground by a predetermined interval.

In addition, the container for the energy storage device,

One end of the side wall 30 is preferably formed with a connection portion 31 through which an external line can be introduced.

In addition, the container for the energy storage device,

A constant temperature and humidity device (61) installed at one end of the side wall (30) of the internal space (50);

Automatic fire extinguishing 62 is installed in close proximity to the constant temperature and humidity device 61;

An IP CCTV (Internet Protocol Closed Circuit Television) 63 installed at one end of the upper plate 10 of the internal space 50;

A sensor 64 installed in proximity to the IP CCTV 63;

A sprinkler (65) installed at one end of the upper plate (10) of the internal space (50); And

It is preferable that the control unit 66 further comprises a control unit 66 for monitoring the internal situation of the container in conjunction with each device.

In addition, the container for the energy storage device,

The blower 67 is installed at one end of the side wall 30 of the inner space 50;

The present invention can minimize the effects of internal condensation, ground moisture, and external temperature through the double bulkhead system while maintaining the existing ISO export size of the container as it is, the internal temperature and humidity through a constant temperature and humidity device Humidity control, not only has a shielding effect through a double door, but also has the effect of allowing the internal track to be directly connected to the outside through the connection.

In addition, a space for the module, which is a secondary battery cell or a bundle of battery cells, is secured. Also, an automatic fire extinguishing device, a flame detector, a smoke detector, a flooded detector, CCTV, a real-time monitoring system, It is effective to identify and cope with the situation in real time.

In addition, most existing large-capacity energy storage devices have ventilation systems, and these ventilation systems are installed to simplify the use of blowers. These ventilation systems are rather responsible for the ingress of external air, the ingress of moisture, the penetration of salt on the beach, and have a significant effect on corrosion. Therefore, as in the present invention, a completely closed container system is required, and a considerable amount of power is required to operate such a container system. For this purpose, the existing system has a limitation of application as well as a considerable power loss by operating by connecting external power or utilizing internal stored electric resources. As power loss of about 20 to 25% of the capacity of the energy storage device is generated in the entire system operation, the present invention develops an energy zero container utilizing eco-friendly renewable energy such as solar and geothermal heat in addition to the existing system. In addition, it is effective to overcome this problem by applying to the container for the energy storage device. Such solar power generation system can be installed with 3 ~ 6KW solar modules according to container size and installation direction, and this part operates as a system that can meet most of the internal power (average 30KW / day based on 6KW) Production, constant temperature and humidity can be operated continuously for 30 hours).

In addition, existing containers for large-capacity energy storage devices are limited to devices for storing and transporting secondary battery modules, but recently, not only these modules but also spaces for putting all these systems in one container system to be operated in parallel with generators are secured. And design a system that can parallel the related electrical systems. However, for such a system, one copper can be moved through a container, but the existing system can only be moved by separate separation from the generator. The present invention has begun to develop a 250KW system, but can be applied to smaller and larger sizes in the same way, and designed to be applied to a maximum 500KW class when applying a standard container. This design is considered to be a very efficient system for integrating renewable energy, energy storage and existing generator systems into Southeast Asia and the island, and it is effective to secure energy savings of up to 50% when linking energy saving types. have. The design can be changed to connect the system through separate bulkhead treatment, and the individual temperature management through separate separation can use the generator which can be used in emergency or always without affecting the energy storage device. have.

In addition, the most important thing to note when applying the integrated system as described above should be based on the thermal barrier bulkhead treatment so that the temperature at the time of generator operation does not affect the energy storage device. It should be designed to block all vibrations. That is, on the premise that the vibration prevention pad is installed to solve the vibration problem when the generator system is applied, and the present invention is a system capable of separating the partition wall so that the vibration system can be applied, and the constant temperature and humidity system to facilitate temperature control. It is effective to discharge the smoke from the generator through a specially designed passageway. This system minimizes the energy loss by linking the efficiency of the generator directly to the energy storage device, and simultaneously connects the PCS of the storage device to the automation system. I think it will be of great help to construct.

That is, the present invention as a container that helps to unify all systems by installing various safety devices and systems to install only the energy storage device module, minimizing the change in temperature and humidity through condensation and insulation system, preventing condensation, and minimizing energy. It is designed and configured for immediate use even when installing an energy storage module or adding a generator, and consists of various sensors, automatic fire extinguishing system, monitoring system, and CCTV for emergency situation. Equipped with a constant temperature and humidity device to maintain the temperature and humidity, combined with a solar power system or geothermal system to the top of the container to save energy, has the effect of improving the storage efficiency by minimizing the use of internal power, and secured space for the generator can be installed have. Therefore, it is possible to fully express the role of the container as an auxiliary device to enable more efficient and longer life of the energy storage devices necessary for smart grid system, energy independence village, and independent solar power generation system. Corrosion problem, dew condensation, safety problems, such as the effect that can be solved at one time, the present invention can reduce the electricity use more than 50% compared to the use of the existing internal power, than when applying the geothermal system High energy savings can be achieved, which in turn can increase energy storage efficiency and utilization.

1 is a perspective view showing a commonly used container
2 is a real picture of a container for an energy storage device previously developed by the applicant of the present invention
3 is a perspective view of the internal structure of the container for an energy storage device according to the first embodiment of the present invention;
Fig. 4 is a front view of Fig. 3
5 is a perspective view of the internal structure of the container for an energy storage device according to the second embodiment of the present invention;
Fig. 6 is a front view of Fig. 5

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In addition, although the term used in the present invention is selected as a general term that is widely used at present, there are some terms selected arbitrarily by the applicant in a specific case. In this case, since the meaning is described in detail in the description of the relevant invention, It is to be understood that the present invention should be grasped as a meaning of a term that is not a name of the present invention. Further, in describing the embodiments, descriptions of technical contents which are well known in the technical field to which the present invention belongs and which are not directly related to the present invention will be omitted. This is for the sake of clarity of the present invention without omitting the unnecessary explanation.

First, the present invention is divided into a container for an energy storage device according to a first embodiment for accommodating only an energy storage device, and a container for an energy storage device according to a second embodiment for accommodating an energy storage device and a generator. The configuration of a container for an energy storage device according to an embodiment is as follows.

FIG. 3 is a perspective view illustrating an internal structure of a container for an energy storage device according to a first embodiment of the present invention. FIG. 4 is a front view of FIG. 3, wherein the upper plate 10, the lower plate 20, and the side wall 30 are formed. And the end door 40 is coupled to each other and finished to form an internal space 50, the top plate 10 and the side wall 30 is composed of a double partition wall 11, the end space in the interior space 50 A double transparent door 51 is installed at a predetermined interval apart from the 40, and a holder 52 capable of mounting an energy storage device is located.

Here, the "double partition wall 11" means a partition wall formed with a space between the wall and the wall, not a single wall, and the space may be kept empty, optionally, insulation, condensation, vibration prevention, etc. A functional pad may be inserted to implement the same.

In addition, the 'energy storage device' means a secondary battery cell or a module that is a bundle of battery cells, that is, a secondary battery type module system.

At this time, the solar panel 12 is formed on the outer surface of the upper plate 10, the lower surface of the lower plate 20 is further provided with a support 21 for spaced apart from the container by a predetermined distance, the side wall One end of the 30 is further formed with a connection portion 31 to which an external line can be input so as to be connected to a device such as an external power converter.

In addition, the container for an energy storage device having the above structure is a safety device or the like, the thermo-hygrostat device 61 is installed at one end of the side wall 30 of the internal space 50, and the thermo-hygrostat device 61 is installed. Automatic fire extinguishing 62 is installed in close proximity, IP CCTV (Internet Protocol Closed Circuit Television) 63 is installed at one end of the upper plate 10 of the internal space 50, and the sensor is located close to the IP CCTV 63. A 64 is installed, and a sprinkler 65 is installed at one end of the upper plate 10 of the inner space 50, and the controller 66 can monitor the situation of the container in real time in association with each device. ) Is installed.

At this time, the constant temperature and humidity device 61 applies a conventional means such as air conditioning already known, in the case of automatic fire extinguishing 62 applies a carbon dioxide extinguishing method.

In addition, IP CCTV (63), sensor (64), sprinkler (sprinkler) 65, the control unit 66 can also be applied to the various known means and systems in the present invention, wherein the sensor (64) A single or a plurality of sensors capable of detecting a flame detection, a smoke detection, a temperature detection, a flooding detection, etc. may be applied. The thermo-hygrostat 61, the automatic fire hydrant 62, the sprinkler 65, and the like may be applied to the sensor 64. ).

Next, a configuration of a container for an energy storage device according to a second embodiment will be described.

FIG. 5 is a perspective view illustrating an internal structure of a container for an energy storage device according to a second embodiment of the present invention. FIG. 6 is a front view of FIG. 5, and most configurations are the same as in the first embodiment. In the container for an energy storage device according to the embodiment, the inner space 50 is divided into the first inner space 50a and the second inner space 50b by the second double transparent door 53. In addition, a cradle 52 capable of mounting an energy storage device is located in the first internal space 50a, and a generator 54 is located in the second internal space 50b. That is, it is a container for the energy storage device for generator mixing.

In addition, the container for the energy storage device according to the second embodiment does not need to be configured with a separate connection portion 31 (see FIG. 4) into which an external line can be input as it is located inside the generator 54. Unlike the energy storage device according to the first embodiment, the blower 67 may be further installed at one end of the side wall 30 of the internal space 50.

Hereinafter, the present invention will be described in more detail based on the following examples, but the present invention is not limited to the examples.

1. Performance Evaluation

The most important performance evaluation factors for energy storage containers can be divided into temperature, humidity blocking, condensation prevention, external vibration prevention, internal load and space (installation capacity), and various safety device systems. 1].

Evaluation items Evaluation Content Remarks Temperature Internal temperature 25 ± 5 ℃ Humidity Less than 70% Condensation Prevention Visual check Corrosion protection Anti-vibration 60 um or less Installation capacity More than 100kWh 20ft standard safety device Automatic fire extinguishing system, flame detection system, smoke detection system, CCTV, temperature, humidity detection system, flood detection Internal design standard

In case of temperature, it is necessary to maintain the optimal operating temperature of energy storage device at 20 ~ 30 ℃, and it cuts off the external temperature by minimizing energy consumption without being affected by the surrounding temperature and always operating optimally. This is to maintain the condition.

The reason why humidity and condensation prevention are important is that the module, which is the smallest unit of a battery cell in which an energy storage device is constructed, is made of various electrical devices and metals. In the case of busbars in particular, most of them are made of copper to minimize resistance, and due to the nature of these materials, they are very vulnerable to corrosion by humidity and water. In order to prevent such corrosion in advance, a system that controls humidity and simultaneously prevents condensation is necessary. Corrosion causes resistance, resistance to heat problems and hot spots that lead to fire, and a series of phenomena leads to storage device explosions. To prevent this, humidity control and condensation prevention are essential.

Vibration prevention is a performance required to block external vibration in advance and to prevent damage to the connection part through vibration by the internal generator or other facilities. Implementing Other Performances Based on the inherent performance of containers for energy storage devices, space must be secured and additional safety devices are required.

2. 5-2 Experiment and Performance Evaluation

The test conditions were measured for 15 days at each time point, which is represented by each season (August in summer, December in winter, April in April, and October in autumn) for each of the following examples and comparative examples. It was. Each temperature was measured once a day in the morning and afternoon each day through the sense of temperature inside, and the vibration was measured by generating an external vibration cause. Condensation was measured before 9 am, after 8 pm, and 1 pm daily, and the results are shown in Table 2 below.

 Example 1 20ft Container for Energy Storage Device According to the Present Invention

 Example 2-Container for Energy Storage (40ft) According to the Present Invention

 Example 3 Container for Energy Designation Device According to the Present Invention

 Example 4 Container for Energy Designation Device (Generator Mixing) According to the Present Invention

 Comparative Example 1-General Size Container (40ft)

Comparative Example 2-Existing energy storage concentrator (general container retrofit)

Remarks circumstance
Condition Temperature
(° C) Humidity
(%) Condensation
phenomenon vibration
(um) Installation capacity safety
system Remarks Example 1 Average temperature
28 ℃
Average humidity
77%
Summer season 22 40 × 34 250 kWh ○ Example 2 23 41 × 38 500kKh ○ Example 3 22 40 × 35 250 kWh ○ Example 4 24 42 × 37 250 kWh ○ Comparative Example 1 35 75 ○ 80 500 kWh × Comparative Example 2 31 68 ○ 60 500 kWh ○ Example 1 Average temperature
04 ℃
Average humidity
30%
Winter 21 40 × 35 250 kW ○ Example 2 20 41 × 37 500kKh ○ Example 3 21 41 × 33 250 kWh ○ Example 4 20 41 × 37 250 kWh ○ Comparative Example 1 10 28 × 75 500 kWh × Comparative Example 2 15 30 × 63 500 kWh ○ Example 1 Average temperature
18 ℃
Average humidity
55%
Spring 21 41 × 32 250 kW ○ Example 2 22 41 × 32 500kKh ○ Example 3 22 41 × 35 250 kWh ○ Example 4 20 41 × 35 250 kWh ○ Comparative Example 1 15 45 ○ 70 500 kWh × Comparative Example 2 20 42 ○ 65 500 kWh ○ Example 1 Average temperature
15 ℃
Average humidity
30%
Autumn 21 41 × 33 250 kW ○ Example 2 21 41 × 34 500kKh ○ Example 3 21 41 × 36 250 kWh ○ Example 4 20 40 × 34 250 kWh ○ Comparative Example 1 13 20 × 69 500 kWh × Comparative Example 2 20 22 ○ 58 500 kWh ○

As a result of the measurement, as shown in [Table 2], the existing container box according to Comparative Example 1 cannot be used as an energy storage device as a result of temperature, humidity, condensation, vibration, and all parts of the system, and according to Comparative Example 2 In the case of the container applied to the existing energy storage device, as the internal temperature is increased, condensation and humidity cannot be maintained when the internal and external temperature difference occurs.

This could be confirmed that the structure is a single thickness, not a double structure, such as the present invention and the external environment due to the fan for ventilation. As a result, the container for the energy storage device according to Examples 1 and 2 has been proved as a technology that can overcome all these problems.

In addition, in the case of the energy-saving energy storage container according to Example 3, as shown in [Table 3], the existing energy storage devices use about 3kWh of electricity in summer when the most power is required to operate the system. As a result, the daily average consumption was about 70KW, and the storage device generated by the use of a considerable amount of electricity was improved. It could improve the electricity storage efficiency of more than 15%.

time Example 3 Comparative Example 2
Hourly average
Electricity consumption (KW / h) 04 ~ 08 1KW / h 1KW / h 08 ~ 14 0KW / h 3KW / h 14-18 1KW / h 4KW / h 18-22 2.5KW / h 3KW / h 22 ~ 04 1KW / h 1KW / h

The same phenomenon can be seen that a significant amount of electricity consumption during operation by installing a thermo-hygrostat (08 ~ 22:00). This varies considerably with the surroundings and requires more electricity during the summer months. (Examples according to the invention were measured in June based on a 10-day average usage.) This system operating electricity usage will increase as the storage capacity increases. If 1MW is stored and used, the capacity of the energy storage device will be discharged for internal electricity use after about 15 days. In order to minimize the system, it is easy to use a container with high insulation performance and a container using renewable energy that can solve the internal system power consumption by itself. It can be applied in various ways such as 3KW class, 3KW + geothermal system. By developing these designs and performances, energy storage devices can be instrumented for higher storage and higher efficiency. In the case of geothermal heat, if the heat pipe is placed inside the container using geothermal heat, a constant geothermal temperature always affects the inside of the container, so it is possible to drastically reduce the time to operate the constant temperature and the humidity chamber, especially in winter and summer. This fundamentally reduces the energy consumption required to operate the system.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Modification is possible.

Accordingly, the spirit of the present invention should be understood only in accordance with the following claims, and all equivalents or equivalent variations thereof are included in the scope of the present invention.

10 top plate 11: double bulkhead
12: solar panel 20: lower panel
21: support 30: side wall
31: connection portion 40: end door
50: internal space 50a: first internal space
50b: second interior space 51: double transparent door
51a: first double transparent door 52: holder
53: second double transparent door 54: generator
61: constant temperature and humidity device 62: automatic fire extinguishing
63: IP CCTV 64: Sensor
65 sprinkler 66 control unit
67 blower

Claims (6)

delete In a container in which the upper plate 10, the lower plate 20, the side walls 30, and the end doors 40 are coupled to each other and finished to form an internal space,
The upper plate 10 and the side wall 30 is formed of a double partition 11, the solar panel 12 is formed on the outer surface of the upper plate 10, the container on the lower surface of the lower plate 20 A support 21 is provided to space the predetermined distance to the ground, and the inner space is partitioned into a first inner space 50a and a second inner space 50b by a second double transparent door 53.
In the first internal space 50a, a holder 52 capable of mounting an energy storage device, a constant temperature and humidity device 61 installed at one end of the side wall 30 of the first internal space 50a, and the constant temperature It is provided with an automatic fire hydrant 62 is installed in close proximity to the humidity device 61,
In the second inner space (50b), the first double transparent door (51a) and a predetermined interval spaced apart from the end door 40 to the second inner space (50b) side, and in the second double transparent door (53) Generator 54 is installed to be spaced apart a predetermined interval toward the second inner space (50b), sprinkler (65) and the blower (67) installed on one end of the upper plate 10 of the second inner space (50b) Equipped,
One end of the upper plate 10 of the first internal space 50a and the second internal space 50b is provided with an IP Protocol Internet Protocol Closed Circuit Television (CCTV) 63 and a sensor 64 installed in proximity to the IP CCTV 63. ) Are each provided,
The control unit (66) for interlocking with each device in real time to monitor the situation inside the container is further provided in the first internal space (50a) container for an energy storage device. delete delete delete delete

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