KR102503194B1 - Temperature control system for ess baterry container - Google Patents

Abstract

The present invention relates to a temperature control device for a container for an ESS battery. To this end, the present invention includes: a support plate provided at a predetermined interval on the bottom surface of a container; a plurality of ESS battery racks provided on the support plate; an air suction unit provided on the upper part of the ESS battery racks to suck air; a cold air discharge unit that is provided on the support plate to discharge cold air and is connected to a space between the support plate and the bottom surface of the container; and a plurality of temperature sensors provided near the ESS battery racks.

Description

Temperature control device for container for ESS battery {TEMPERATURE CONTROL SYSTEM FOR ESS BATERRY CONTAINER}

The present invention relates to a temperature control device for an ESS battery container, and more particularly, to a temperature control device for an ESS battery container capable of minimizing a temperature deviation inside a container for an ESS battery.

In general, a container refers to a box-shaped container used to transport cargo efficiently and economically, and is easy to load and ship and safely protects cargo during vehicle transport using trailers, railroad cars, etc. or maritime transport using container ships. equipped to do

These containers have been used for the purpose of transporting cargo in the past, but have recently been used for warehouses or temporary residences for storing goods. Due to the advantage of free expansion of the indoor space in the form of connecting or stacking several containers, it is relatively unrestricted, and its utilization as shops and long-term residences in downtown areas is increasing.

On the other hand, energy demand is showing an increasing trend every year due to the expansion of air conditioning and heating equipment due to recent high oil prices and abnormal climate change. One of the measures to solve the power crisis is an ESS (Energy Storage System). ESS is a device that can store surplus produced electricity or utilize renewable energy to make the generated electricity available at the required time. Thus, power can be used stably.

Therefore, by storing electric energy and using it when necessary, energy use efficiency can be improved, new and renewable energy utilization can be improved, and power supply system stabilization can be achieved, so the importance of ESS, one of the new growth engine industries, is emerging.

Recently, container systems equipped with ESS batteries ranging from hundreds of kWh to megawatts are being applied as part of a mobile ESS that maximizes the advantages of containers.

On the other hand, in the case of a container equipped with such an ESS battery, an air conditioning system is provided inside the container to cool the ESS battery rack. Such an air conditioning system is provided on the ceiling or floor of a container and includes a cold air discharge unit for discharging cold air for cooling toward the ESS battery rack, and an air intake unit for sucking hot air.

However, such a conventional ESS battery container has a problem in that the flow space of the hot air and the cold air is not separated inside, so that the air flow in which the hot air and the cold air are mixed occurs, thereby deteriorating the cooling performance.

In addition, the temperature deviation in each ESS battery rack depends on whether the ESS battery rack is driven, the storage capacity, etc., and the temperature deviation between the ESS battery rack located close to the cold air supply unit and the ESS battery rack located far away increases. There is also a problem that the life span is shortened due to the deterioration of the ESS battery rack where the temperature is high.

Accordingly, there is a need for a method that can effectively reduce the temperature deviation inside the container and improve cooling performance.

Republic of Korea Patent Publication No. 10-2021-0087844 (published date: 2021.07.13.) Republic of Korea Patent Publication No. 10-2019-0106540 (published date: 2019.09.18.)

The present invention has been made to solve the above problems, and an object of the present invention is to provide a temperature control device for a container for an ESS battery capable of reducing a temperature deviation inside the container and improving cooling performance.

Another object of the present invention is to provide a temperature control device for a container for an ESS battery capable of controlling the air area of a cold air discharge unit through which cold air is discharged according to the measured internal temperature of the container.

In addition, an object of the present invention is to provide a temperature control device for a container for an ESS battery capable of individually controlling a plurality of ventilation units according to the measured temperature.

In addition, an object of the present invention is to provide a temperature control device for a container for an ESS battery that can efficiently reduce a temperature deviation by varying the air area of a cold air discharge unit near and far from a cold air supply unit.

Along with this, other objects and advantages of the present invention will be described below, which will be further explained by means and combinations within the scope easily deduced from them, as well as the details described in the claims of the present invention and the disclosure of the embodiments thereof. It is added that it will be embraced in a wide range.

The present invention for achieving the above object is a support plate provided at a predetermined interval on the bottom surface of the container; A plurality of ESS battery racks provided on the support plate; An air suction unit provided on an upper portion of the ESS battery rack to suck air; a cold air discharge unit disposed on the support plate to discharge cold air; And a plurality of temperature sensors provided in close proximity to the ESS battery rack; a temperature control device for a container for an ESS battery, including the cold air discharge unit, the upper ventilation unit fixed to the support plate and having a plurality of through holes and the upper A plurality of ventilation units, which are slidably mounted on the lower side of the ventilation unit and include a lower ventilation unit formed with a plurality of through holes, and a plurality of actuators provided in each lower ventilation unit to allow the corresponding lower ventilation unit to move a certain distance. , And composed of a controller connected to the temperature sensor and the actuator, each of the vents is provided in the support plate, provided in front of each corresponding ESS battery rack, the temperature sensor is corresponding to each of the ESS battery racks It is provided at the rear, and the controller compares the temperature measured by the temperature sensor with a set temperature and adjusts the air area of the cold air discharge unit through the actuator.

And according to a preferred embodiment of the present invention, the controller individually controls the ventilation part corresponding to the temperature measured by each of the temperature sensors, but the temperature measured by any one of the temperature sensors is higher than the set temperature. When the air permeability is high or low, the corresponding actuator of the ventilation unit is driven to increase or decrease the air area ratio of the cold air discharge unit.

In addition, according to a preferred embodiment of the present invention, the controller, when the temperature measured by any one of the temperature sensors reaches the set minimum temperature, drives the actuator of the corresponding ventilating unit to cool air to the corresponding ventilating unit. It is characterized in that to block the discharge of.

On the other hand, the present invention for achieving the above object is a support plate provided at a predetermined interval on the bottom surface of the container; A plurality of ESS battery racks provided on the support plate; An air suction unit provided on an upper portion of the ESS battery rack to suck air; a cold air discharge unit disposed on the support plate to discharge cold air; And a plurality of temperature sensors provided in close proximity to the ESS battery rack; a temperature control device for a container for an ESS battery, comprising: the cold air discharge unit is fixedly installed on the support plate, but an upper ventilation unit having a plurality of through holes is formed at regular intervals A plurality of upper plates, a lower plate slidably mounted with respect to the upper plate and having a plurality of through-holes formed at positions corresponding to the upper vents, and a lower plate provided on the lower plate to maintain the lower plate. It consists of an actuator capable of moving a certain distance, and a controller connected to the temperature sensor and the actuator, so that the distance between the through-holes decreases and the width of the through-hole widens as the lower ventilation part moves away from the cold air supply unit. The controller compares a temperature difference between a high value and a low value in the temperatures measured by the temperature sensors with a set temperature, and adjusts the air area of the cold air discharge unit through the actuator.

And according to a preferred embodiment of the present invention, when the temperature difference is higher than the set temperature, the controller drives the actuator to adjust the air area of the cold air discharge unit to decrease as it approaches the cold air supply unit. .

In addition, according to a preferred embodiment of the present invention, the controller moves the lower plate to the maximum when the temperature difference reaches the set maximum temperature, and discharges cold air to the ventilation part close to the cold air supply part. characterized by blocking.

As described above, according to the present invention, the following effects can be expected.

There is an effect that temperature deviation can be reduced inside a container equipped with a plurality of ESS battery racks and cooling performance can be improved.

That is, when cold air is discharged to cool the heat generated in the ESS battery rack, the temperature deviation can be reduced by individually controlling the air area of the cold air discharge part through which the cold air is discharged according to the measured temperature of each nearby ESS battery rack. .

At this time, a plurality of ventilating parts are individually controlled according to the measured temperature, that is, by increasing or decreasing the perforation rate by driving the actuator of the ventilating part where the temperature higher or lower than the set temperature is measured, the high temperature It has the effect of reducing the temperature deviation by controlling a lot of cold air to be discharged where the temperature is measured and a small amount of cold air to be discharged to the place where the low temperature is measured.

In addition, the difference between the measured temperature, that is, the temperature difference between the high and low values at the measured temperature is compared with the set temperature, and if the temperature difference is greater than the set temperature, the open area is adjusted. By varying the air area ratio of the cold air outlet, that is, by adjusting the air area rate to decrease in places close to the cold air supply part and increase in areas far away, the temperature deviation can be effectively reduced.

In addition, the flow space of hot air and cold air is clearly divided inside the container for ESS batteries, so that an efficient air conditioning effect can be obtained.

That is, in the prior art, the flow space of hot air and cold air is not separated inside the container, so the hot air and cold air are mixed with each other and the air flows, resulting in a decrease in cooling performance. However, according to the present invention, both ESS battery racks are disposed inside the container Since hot air flows and is sucked from the side, that is, the rear of the ESS battery rack to the air inlet on the upper side, and the cold air flows between the ESS battery racks arranged on both sides through the cold air outlet provided on the lower side of the ESS battery rack, cooling There is also an effect of improving efficiency.

As a result, the problem of deteriorating performance of the ESS battery is solved, and maintenance costs are minimized.

In addition, there is provided an access floor for installing the ESS battery inside the container. Since this support plate is provided at a predetermined interval from the bottom surface inside the container, the space can be used as a supply and inflow passage of cold air, There is also an effect that the installation of additional components for the present invention can be minimized.

Along with this, other effects of the present invention are not only the matters described in the above-described embodiments and the claims of the present invention, but also the possibility of potential advantages contributing to the effects and industrial development that can occur within the range that can be easily deduced from them. It is added that it will be embraced in a wider range by

1A and 1B are views showing the exterior and interior of a container equipped with a temperature control device for a container for an ESS battery according to the present invention.
2 is a plan view showing the inside of a container equipped with a temperature control device for a container for an ESS battery according to a first embodiment of the present invention.
3A and 3B are plan views illustrating a ventilation unit of the temperature control device for a container for an ESS battery according to the first embodiment of the present invention, as shown in A of FIG. 2 .
4A to 4C are a plan view and a cross-sectional view illustrating a state in which the air area is adjusted in the temperature control device for a container for an ESS battery according to a first embodiment of the present invention.
5 is a diagram showing a state in which a flow space of hot air and cold air is divided by the temperature control device of a container for an ESS battery according to the present invention.
6 is a plan view showing the shape of a cold air discharge unit in the temperature control device for a container for an ESS battery according to a second embodiment of the present invention.
7A to 7C are cross-sectional views illustrating states in which the air area is adjusted in the temperature control device for the container for an ESS battery according to the second embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to the description, the advantages and features of the present invention and how to achieve them will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings. In addition, the terms used in this specification are for describing the embodiments and are not intended to limit the present invention, and the singular form of these terms includes the plural form unless specifically stated in the phrase, and the word referring to the direction in the description It is noted that is to help the understanding of the description and is changeable according to the point in time.

Hereinafter, a magnetic lift device according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Example 1

1A and 1B are views showing the exterior and interior of a container equipped with a temperature control device for a container for an ESS battery according to the present invention, and FIG. 2 is a temperature control of a container for an ESS battery according to a first embodiment of the present invention It is a plan view showing the inside of the container in which the device is mounted.

Referring to the drawings, the temperature control device for the container for the ESS battery according to the present embodiment is installed in the container for the ESS battery 15, the support plate 10, the ESS battery rack 20, the air intake unit 17, A cold air discharge unit 30 and a temperature sensor 80 are included.

First, a plurality of ESS battery racks 20 are provided inside the container 15, which are provided on the support plate 10 provided at predetermined intervals from the bottom surface of the container 15, both sides in the longitudinal direction of the container 15 It may be provided by being arranged in a row on the side.

Here, the ESS battery rack 20 includes a plurality of battery packs arranged in a vertical direction.

An air conditioning system (90, HVAC; Heating Ventilation & Air Conditioning) is provided outside one side of the container 15, and cold air is supplied to the inside of the container 15 through the air conditioning system 90, and the air inside can be sucked. there is.

In this embodiment, the air suction unit 17 is provided on the ceiling surface of the container 15, that is, the upper portion of the ESS battery rack 20 to suck the heat generated in the ESS battery rack 20, and the container 15 The cold air discharge unit 30 is provided on the bottom surface, that is, the support plate 10, to discharge cold air to the ESS battery rack 20.

The cold air discharge unit 30 discharges cold air when it flows into the space formed by the support plate 10, and the cool air supply unit 35 of the air conditioning system 90 is placed between the support plate 10 and the bottom surface of the container 15. It is connected to the space of , and the space serves as a duct so that cold air supplied from the cold air supply unit 35 flows into the container 15 .

The temperature sensor 80 is provided in close proximity to the ESS battery rack 20. In this embodiment, one temperature sensor 80 is provided in one ESS battery rack 20, as shown in FIG. , ESS will be described as an example that is provided to correspond to the rear of the battery rack (20).

In this way, the temperature sensor 80 and the ESS battery rack 20 are provided in a one-to-one correspondence, according to the temperature measured in each ESS battery rack 20, of the cold air discharged from the front of the corresponding ESS battery rack 20 to individually control the quantity.

The cold air discharge unit 30 according to the present embodiment will be described in detail. 3A and 3B are plan views illustrating the ventilation part of the temperature control device for a container for an ESS battery according to the first embodiment of the present invention as shown in A of FIG. 2, and FIGS. 4A to 4C are the first It is a plan view and a cross-sectional view showing a state in which the air area is adjusted in the temperature control device of the container for an ESS battery according to the embodiment.

Referring to the drawings, the cold air discharge unit 30 is composed of a ventilation unit 40, an actuator 60, and a controller 70.

For convenience of description, the ventilation unit 40 will separately describe one ventilation unit A among the plurality of ventilation units 40 shown in FIG. 2 as shown in FIGS. 3 and 4 . FIG. 3A is a plan view showing the ventilation unit 40, and FIG. 3B is a plan view illustrating the upper ventilation unit 140a and the lower ventilation unit 140b provided in the ventilation unit 40 by being separated.

A plurality of ventilation units 40 are installed on the support plate 10, and like the temperature sensor 80 described above, one ventilation unit 40 is provided in one ESS battery rack 20, in FIG. As shown, it is provided to correspond to each corresponding to the front of the ESS battery rack (20).

Each vent 40 includes an upper vent 140a and a lower vent 140b. A plurality of through holes 141 are formed in the upper ventilation part 140a and the lower ventilation part 140b, and cold air is discharged through the through holes 141.

Although the through holes 141 are shown as an example of being arranged in a 2×5 shape as shown in the drawing, it is not limited to this shape.

The upper ventilation part 140a is fixedly installed on the support plate 10, and the lower ventilation part 140b is slidably mounted on the lower part with respect to the upper ventilation part 140a, so that the upper ventilation part 140a is fixedly installed. The lower vent (140b) is capable of sliding movement, and in this embodiment, it is possible to move toward the ESS battery rack 20 based on FIG. 2 . Here, in the present embodiment, the upper ventilation part 140a is fixedly installed and the lower ventilation part 140b is described as an example of sliding movement, but it is not limited to this form, and the lower ventilation part 140b fixed With respect to the upper vent (140a) may be able to slide.

For the sliding movement of the lower ventilation part 140b, an actuator 60 is provided in each lower ventilation part 140b. That is, as shown in FIG. 2 , actuators 60 are provided in a one-to-one correspondence with each lower vent 140b, and the lower vent 140b can be moved individually by the actuator 60.

The controller 70 is connected to the temperature sensor 80 and the actuator 60, compares the temperature measured by each temperature sensor 80 with a set temperature, and opens the cold air discharge unit 30 through the actuator 60. adjust the rate

That is, the controller 70 compares the temperature measured by the plurality of temperature sensors 80 with the set temperature, and when higher than the set temperature, in front of the ESS battery rack 20 corresponding to the temperature sensor 80 The actuator 60 of the lower ventilation part 140b of the provided ventilation part 40 is driven. Due to this, the amount of cool air discharged from the ventilation unit 40 is adjusted.

Looking at the method of controlling the air area of the cold air discharge unit 30 by the controller 70, first, in a general state, cold air is discharged in a state as shown in FIG. 4A. That is, the through holes 141 of the upper ventilation part 140a and the lower ventilation part 140b are arranged to coincide with each other so that cold air can be discharged 100% as indicated by the arrow.

FIG. 4B shows a state in which the lower vent 140b is slid and moved by the actuator 60, and is a state in which about 50% of cold air can be discharged. That is, due to the movement of the lower ventilation part 140b, the upper and lower through-holes 141 do not match, and the upper through-hole 141 is half blocked due to the gap between the through-holes 141. .

This state is when the temperature measured by the temperature sensor 80 corresponding to the ventilation part 40 is lower than the set temperature, and is to reduce the discharge amount of cold air when the temperature is lowered due to the discharge of too much cold air. . At this time, since 100% of cold air is discharged from the vent 40 where the lower vent 140b is not moved, that is, the vent 40 whose temperature measured by the temperature sensor 80 is higher than the set temperature, There is an effect of reducing the temperature deviation inside the container 15 .

FIG. 4C shows a state in which the lower ventilation part 140b is moved to the maximum by the actuator 60, and cold air is not discharged. That is, due to the movement of the lower ventilation part 140b, the upper and lower through-holes 141 are completely blocked.

In this state, when the temperature measured by the temperature sensor 80 corresponding to the ventilation part 40 reaches the set minimum temperature, the temperature becomes too low due to the discharge of too much cold air, so that the cold air is blocked from being discharged. it is for

On the other hand, in the present embodiment, as shown in FIG. 4A, the state in which the through hole is completely opened is a general state, and when the temperature measured by the temperature sensor is lower than the set temperature, the hole area rate is reduced as an example, but it is limited to this form On the contrary, a state in which the through hole is blocked or somewhat blocked is a general state, and when the temperature measured by the temperature sensor is higher than the set temperature, it may be driven to increase the open area ratio.

Referring to the effect of the temperature control device for the container for ESS batteries according to the present embodiment with reference to FIG. 5, FIG. This is a diagram showing the condition.

As shown in FIG. 5, cold air flows between the fronts of the ESS batteries 20 arranged in a row on both sides inside the container 15 as shown by the arrow B to form a cold zone, and the ESS As the hot air flows between the rear of the batteries 20, that is, between the ESS batteries 20 and the container 15 as indicated by the arrow C to form a hot zone, the flow space of hot and cold air is clearly distinguished Thus, an efficient air conditioning effect can be obtained.

Second embodiment

Next, a temperature control device for a container for an ESS battery according to a second embodiment of the present invention will be described.

The apparatus for controlling the temperature of a container for an ESS battery according to the second embodiment of the present invention is similar to the apparatus for controlling the temperature of a container for an ESS battery according to the first embodiment described above, and has features in the structure and function of the cold air discharge unit.

As in the above-described first embodiment, in this embodiment, the temperature control device of the container for the ESS battery is installed in the container for the ESS battery, and the support plate, the ESS battery rack, the air intake unit, the cold air discharge unit 230, and the temperature contains the sensor.

The apparatus for controlling the temperature of a container for an ESS battery according to the present embodiment has a structure as shown in FIGS. 1A, 1B, and 2, but there is a difference in the structure of the cold air discharge unit 30.

That is, as shown in FIGS. 1 and 2, the temperature control device for the container for the ESS battery according to the present embodiment also has a plurality of ESS battery racks provided inside the container, provided on a support plate, and in the longitudinal direction of the container It may be provided by being arranged in a row on both sides.

An air conditioning system is provided on the outside of one side of the container, cold air is supplied to the inside of the container through the air conditioning system, and air inside the container can be sucked in. ) is provided.

The temperature sensor is provided close to the ESS battery rack. In this embodiment, it is installed on one side of the container, that is, close to the cold air supply unit, and may be installed on the other side of the container, that is, the innermost part of the container. For example, each one is installed at the rear of the facing ESS battery rack provided on one side of the container, each one is installed at the rear of the facing ESS battery rack provided on the other side of the container, or the facing ESS provided on one side of the container One at the rear of any one of the battery racks, one at the rear of any one of the facing ESS battery racks provided on the other side of the container may be installed.

In this way, the temperature sensors are installed on one side and the other side of the container, unlike the first embodiment described above, to respond to the fact that the temperature near the cold air supply unit is low and the temperature far away is high. This is to ensure that the temperature difference between the near and far places does not widen.

The cold air discharge unit 230 according to the present embodiment will be described in detail. 6 is a plan view showing the shape of a cold air discharge unit in the temperature control device for a container for an ESS battery according to a second embodiment of the present invention, and FIGS. 7A to 7C are diagrams of a container for an ESS battery according to a second embodiment of the present invention. This is a cross-sectional view showing a state in which the air area is adjusted in the temperature control device.

Referring to the drawings, the cold air discharge unit 230 is composed of an upper plate 240, a lower plate 250, an actuator 260, and a controller (not shown).

The upper plate 240 is fixed to the support plate and has a plurality of upper ventilation parts 245 at regular intervals, and a plurality of through holes 241 are formed in the upper ventilation part 245 .

The upper plate 240 is provided on a support plate between the ESS battery racks arranged in a row, and one upper vent 245 is provided to correspond to the front of one ESS battery rack.

The through hole 241 of the upper ventilation part 245 is a place through which cold air is discharged, and may be formed identically or similarly to the through hole of the ventilation part of the first embodiment described above. Although the through-holes 241 in the ventilation part 245 are shown as being arranged in a 3×3 pattern, it is not limited to this form.

The lower plate 250 is slidably mounted relative to the upper plate 240, and a plurality of lower vents 255 are provided at positions corresponding to the upper vents 245, and the lower vents 255 also have A plurality of through holes 251 are also formed.

The through hole 251 of the lower ventilation part 255 is also a place where cold air is discharged. , The width of the through hole 251 is formed to be widened.

That is, when the cold air supply unit (not shown) is provided on the right side (referred to as one side) in the drawing, as shown in FIG. 6, the through hole 251 of the lower ventilation unit 255 provided on one side is It is provided in the same size and shape as the through hole 241 of the base 245, and the width of the through hole 251 of the lower ventilation part 255 gradually widens toward the other side, and the gap therebetween gradually narrows. do.

As described above, the upper plate 240 is fixedly installed on the support plate, and the lower plate 250 is slidably mounted on the lower side of the upper plate 240 so that the lower plate relative to the upper plate 240 is fixedly installed. 250 is capable of sliding movement, and in this embodiment, it is possible to move linearly in one direction and the other direction. Here, in this embodiment, the upper plate 240 is fixedly installed and the lower plate 250 is described as an example of sliding movement, but it is not limited to this form, and the upper plate 250 is fixedly installed. The plate 240 may be configured to be slidably movable.

For the sliding movement of the lower plate 250, an actuator 260 is provided on the lower plate 250.

The controller is connected to the temperature sensor and the actuator 260 similarly to the first embodiment described above, and compares the temperature difference between the high value and the low value at the temperature measured by each temperature sensor with the set temperature, and the actuator 260 ) through which the air area of the cold air discharge unit 230 is adjusted.

That is, the controller compares the temperature difference between the high value and the low value among the temperatures measured by the plurality of temperature sensors with the set temperature, and then drives the actuator 260 to move the lower plate 250 when it is higher than the set temperature do.

At this time, since the through-holes 251 of the lower ventilating part 255 are formed so that the gap between the through-holes 251 decreases from one side to the other side and the width of the through-holes 251 widens, the cool air supply unit The air area ratio of the cold air discharge unit 230 is adjusted to decrease as it is closer to one side provided.

That is, in a normal state, cold air is discharged in a state as shown in FIG. 7A, but the lower plate 250 is not moved, and the through holes 241 of all upper ventilation parts 245 and the lower ventilation part 255 The through-holes 251 are arranged to match, so that cold air can be discharged 100% as indicated by an arrow.

7B shows a state in which the lower plate 250 is slid to some extent by the actuator 260, and in the upper and lower vents 245 and 255 provided on the other side (left side of the drawing), the upper vent ( The through hole 241 of 245 is not blocked at all, and as a result, 100% of cold air can be discharged through the upper and lower through holes 241 and 251 .

This is because even if the lower plate 250 is moved to the other side, the width of the through hole 251 of the lower vent 255 provided on the other side of the lower plate 250 is wide and the gap between the through holes 251 is wide. because it is narrowly formed.

On the other hand, in the upper and lower vents 245 and 255 provided on one side (right side of the drawing), the through-hole 241 of the upper vent 245 is blocked to some extent, and the upper and lower through-holes 241 and 251 This does not match, and the gap between the lower through holes 251 is half blocked. This is because, as the lower plate 250 moves, the gap between the through holes 251 of the lower vent 250 is provided to block the through hole 241 of the upper vent 245 .

On the other hand, the upper and lower ventilation portions 245 and 255 provided in the middle portion are adjusted so that the hole area gradually decreases from the other side to one side. This is because the distance between the through holes 251 of the lower vent 255 gradually narrows toward the other side, and the width of the through holes 251 gradually widens.

In this state, the temperature difference between the high value and the low value in the temperature measured by the temperature sensors is higher than the set temperature, and the temperature at one side of the cold air discharge unit 230 located close to the cold air supply unit is too high. This is to reduce the discharge amount of cold air at one side close to the cold air supply unit in case the temperature is significantly lowered due to the discharge and the supply of cold air is not sufficient at the other part located far from the cold air supply unit, resulting in a large temperature difference.

For this reason, there is an effect of reducing the temperature deviation inside the container by reducing the open area ratio as it is closer to the cold air supply unit.

7C shows a state in which the lower plate 250 is moved to the maximum by the actuator 260, and cold air is not discharged through the upper vent 245 on one side. That is, due to the movement of the lower plate 250, the upper and lower through holes 241 and 251 are completely blocked.

On the other hand, in the upper and lower vents 245 and 255 provided on the other side, the through hole 241 of the upper vent 245 is partially blocked, but the shape of the lower vent 255, that is, the gap between the lower through holes 251 Due to this narrow shape, the upper through hole 241 is almost not blocked, and close to 100% of cold air is discharged.

In addition, the upper and lower ventilation portions 245 and 255 provided in the middle portion are adjusted so that the air hole ratio gradually increases from one side to the other side.

This state is when the temperature difference according to the measured temperature reaches the set maximum temperature, that is, when the temperature difference between the temperature on one side close to the cold air supply unit and the temperature on the other side far away is significantly large, and the ventilation parts 245 and 255 on one side The furnace is for blocking cold air from being discharged.

On the other hand, in this embodiment, as shown in FIG. 7A, a state in which through-holes are completely open in all ventilation parts is a general state, and when the temperature difference between the temperature measured by the temperature sensor is higher than the set temperature, the open area rate gradually decreases toward one side. Although it has been described as an example, it is not limited to this form, and on the contrary, a state in which the through hole is blocked or to some extent is a general state, and the hole area ratio can be adjusted.

In the temperature control device for the container for an ESS battery according to the present embodiment, as shown in FIG. 5, as in the first embodiment described above, the flow space of hot air and cold air is clearly divided, so that an efficient air conditioning effect can be obtained. there is.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art can make various modifications, changes, and substitutions without departing from the essential characteristics of the present invention. will be. And as described above, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is limited by these embodiments and the accompanying drawings. it is not going to be The protection scope of the present invention should be construed according to the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

10; support plate
15; container
17; air intake
20; ESS battery rack
30, 230; Cold air outlet
35; cold air supply
40, 140, 245, 255; Ventilation part
60, 260; actuator
70; controller
90; air conditioning system
141, 241, 251; through hole
240, 250; plate

Claims (6)

Support plates provided at predetermined intervals on the bottom surface of the container; A plurality of ESS battery racks provided on the support plate; An air suction unit provided on an upper portion of the ESS battery rack to suck air; a cold air discharge unit provided on the support plate to discharge cold air and connected to a space between the support plate and the bottom surface of the container; And a plurality of temperature sensors provided in close proximity to the ESS battery rack; in the temperature control device for a container for an ESS battery comprising a,
The ESS battery rack is disposed on both sides of the container in the longitudinal direction,
The cold air discharge unit is fixed to the support plate and includes an upper ventilation unit having a plurality of through holes and a lower ventilation unit having a plurality of through holes slidably mounted on the lower side of the upper ventilation unit. , Consisting of a plurality of actuators provided in each lower ventilation unit to allow the lower ventilation unit to move a certain distance, and a controller connected to the temperature sensor and actuator,
Each of the ventilation units is provided on the support plate, is provided in front of each corresponding ESS battery rack, and the temperature sensor is provided in the rear of each corresponding ESS battery rack,
The controller compares the temperature measured by the temperature sensor with the set temperature, and then adjusts the air permeability of the vent through the actuator so that cold air flows between the ESS battery racks, and from the rear of the ESS battery rack to the upper side Let the heat flow to the air intake and be sucked in,
When the temperature measured by any one of the temperature sensors is lower than the set temperature by individually controlling the ventilation part corresponding to the temperature measured by each temperature sensor, the actuator of the corresponding ventilation part is driven, Reduce the air area rate of the cold air discharge part,
When the temperature measured by any one of the temperature sensors reaches the set minimum temperature, the actuator of the corresponding ventilation unit is driven to block the discharge of cold air to the corresponding ventilation unit Temperature of the container for ESS batteries, characterized in that controller. delete delete Support plates provided at predetermined intervals on the bottom surface of the container; A plurality of ESS battery racks provided on the support plate; An air suction unit provided on an upper portion of the ESS battery rack to suck air; a cold air discharge unit provided on the support plate to discharge cold air and connected to a space between the support plate and the bottom surface of the container; And a plurality of temperature sensors provided in close proximity to the ESS battery rack; in the temperature control device for a container for an ESS battery comprising a,
The ESS battery rack is disposed on both sides of the container in the longitudinal direction,
The cold air discharge unit is fixedly installed on the support plate and has a plurality of upper ventilation units having a plurality of through holes formed therein at regular intervals. Consisting of a lower plate having a lower ventilation part having two through holes, an actuator provided on the lower plate to move the lower plate a certain distance, and a controller connected to the temperature sensor and the actuator,
The lower ventilation part is formed so that the distance between the through holes narrows and the width of the through hole widens as the distance from the cold air supply part increases,
The controller compares the temperature difference between the high value and the low value at the temperature measured by the temperature sensors with the set temperature, and then adjusts the air area of the vent through the actuator to flow cold air between the ESS battery racks , Let the hot air flow from the rear of the ESS battery rack to the upper air intake and be sucked in,
When the temperature difference is higher than the set temperature, the actuator is driven to control the air area of the cold air discharge unit to decrease as it is closer to the cold air supply unit;
When the temperature difference reaches the set maximum temperature, the lower plate is moved to the maximum to block the discharge of cold air to a ventilation unit close to the cold air supply unit. delete delete

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