Heat dissipation device for energy storage converter in energy storage container

Abstract

The utility model provides a heat dissipation device for an energy storage converter in an energy storage container, the energy storage container comprises an electrical cabin, the energy storage converter and the heat dissipation device are arranged in the electrical cabin, the energy storage converter is provided with a heat dissipation part, the heat dissipation part is provided with a heat dissipation fan, and the side wall of the electrical cabin is provided with an air outlet. The heat dissipation device comprises a ventilation pipeline and an electric shutter, the ventilation pipeline is used for connecting the heat dissipation part and the air outlet, a rainproof cover is arranged at the end, away from the energy storage converter, of the air outlet, and the electric shutter is arranged at the air outlet and is automatically opened and closed under the control of the energy storage converter; heat of the heat dissipation part can be conveniently discharged from the air outlet, the electric shutters are controlled by the energy storage converter to be opened and closed, appropriate ventilation quantity can be provided, external sundries can be prevented from entering the electric appliance cabin, the rain cover can prevent the external sundries from entering the ventilation pipeline, normal operation of the heat dissipation device is guaranteed, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage of new energy power systems, and in particular to a heat dissipation device for an energy storage converter in an energy storage container. Background Art

[0002] Energy storage technology can change the mode in which electricity production, transmission and use must be completed synchronously, improve the safety, economy and flexibility of power grid operation, and become one of the key technologies supporting the development of renewable energy.

[0003] The power storage converter (PCS) is a bidirectional energy storage inverter that can control the charging and discharging process of the energy storage system and perform AC-DC conversion. It can invert the DC power of the energy storage system into AC power and transmit it to the power grid or use it for AC loads, and it can also rectify the AC power of the power grid into DC power to charge the energy storage system.

[0004] As the core component of the energy storage system, the reliability and stability of the energy storage inverter have always been the key points of the entire energy storage system. In the digital energy storage inverter in the energy storage system, the energy storage inverter is installed in the electrical compartment of the energy storage container. The energy storage container is generally installed outdoors. The energy storage electrical compartment must not only ensure the heat dissipation of the energy storage inverter, but also ensure that in the natural environment, rain, snow, wind and sand will not enter the energy storage container, posing a safety hazard to the equipment in the electrical compartment.

[0005] Forced air cooling is commonly used as the main heat dissipation method in energy storage containers of digital energy storage systems. Filter cotton is set at the air outlet, which is simple and easy to implement, but it also has disadvantages. When the external environment is harsh, rain, snow, wind, sand and other debris can easily enter the electrical compartment of the energy storage container through the gaps, bringing risks to the operation of the equipment. In addition, because the holes of the filter cotton are small, it is also easy to be blocked by foreign matter, affecting the air volume of the air outlet, and then affecting the heat dissipation of the energy storage inverter. Therefore, personnel are required to conduct regular inspections and maintenance, and the manual maintenance cost is high. Utility Model Content

[0006] In view of this, the utility model aims to propose a heat dissipation device for an energy storage inverter in an energy storage container to solve the problem in the prior art that debris can easily enter the electrical compartment of the energy storage container through the gaps, bringing risks to the operation of the equipment, the filter cotton has small pores and is easily blocked by foreign matter, affecting the air volume at the air outlet, thereby affecting the heat dissipation of the energy storage inverter and the high manual maintenance cost.

[0007] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0008] A heat dissipation device for an energy storage converter in an energy storage container, the energy storage container comprising an electrical compartment, the electrical compartment being provided with an energy storage converter and a heat dissipation device, the energy storage converter being provided with a heat dissipation portion, the heat dissipation portion being provided with a heat dissipation fan, a side wall of the electrical compartment being provided with an air outlet, the heat dissipation device comprising a ventilation duct and electric shutters, the ventilation duct being used to connect the heat dissipation portion and the air outlet, a rain cover being provided at one end of the air outlet away from the energy storage converter, the rain cover being used to prevent external debris from entering the ventilation duct, the electric shutter being provided at the air outlet, and the electric shutter being automatically opened and closed under the control of the energy storage converter.

[0009] The heat dissipation device for the energy storage inverter in the energy storage container described in the present application is provided with a ventilation duct between the heat dissipation part and the air outlet to facilitate the discharge of heat from the heat dissipation part from the air outlet. The electric shutters are opened and closed under the control of the energy storage inverter, which can not only provide a suitable ventilation volume, but also prevent external dust and other debris from entering the electrical compartment. A rain cover is provided at the air outlet to prevent external dust, rain, snow and other debris from entering the ventilation duct, thereby ensuring the normal operation of the heat dissipation device and reducing maintenance costs.

[0010] Furthermore, the electric blinds include a controller, which is electrically connected to the energy storage inverter, and the controller controls the state of the electric blinds according to a signal from the energy storage inverter.

[0011] This setting can achieve coordinated work between the energy storage inverter and the electric blinds, improve the stability and reliability of the system, reduce manual intervention, and improve the degree of automation of the system.

[0012] Furthermore, the heat dissipation device includes a driving fan, which is located between the electric shutter and the energy storage inverter. The driving fan is used to push the air in the ventilation duct to flow to the outside of the energy storage container. The driving fan is electrically connected to a controller, and the controller is used to control the working state of the driving fan.

[0013] This setting can effectively push the air in the ventilation duct to flow to the outside of the energy storage container, improve the heat dissipation effect, maintain the normal operating temperature of the energy storage inverter, and improve the stability and reliability of the system.

[0014] Furthermore, the heat dissipation device includes a temperature sensor, which is arranged in the ventilation duct. The temperature sensor is electrically connected to a controller, and the controller controls the working state of the electric shutter and the driving fan according to a signal fed back by the temperature sensor.

[0015] This setting enables the controller to adjust the opening angle of the electric shutters and the speed of the driving fan in real time according to the temperature changes in the ventilation duct, achieving the best heat dissipation effect and ensuring the normal operation of the energy storage inverter.

[0016] Furthermore, the heat dissipation device includes a signal receiver, which is used to receive weather forecast information from a meteorological station. The signal receiver is electrically connected to a controller, and the controller controls the working status of the electric shutters and the driving fan according to the weather forecast information.

[0017] This setting can control the working status of the electric shutters and the drive fan according to the weather forecast information to cope with different weather conditions. It can not only reduce the impact of bad weather on the cooling device and improve the reliability of the cooling device, but also reduce the possibility of failure and reduce maintenance costs.

[0018] Furthermore, the heat dissipation device includes a signal transmitter, which is electrically connected to the controller and is used to send operating status information of the heat dissipation device to a control center.

[0019] This setting makes it easy for the control center to understand the working status of the energy storage inverter and the heat dissipation device, discover and solve faults in time, and improve the stability of the system.

[0020] Furthermore, the heat dissipation device includes an alarm, which is arranged on the side wall of the energy storage container and is electrically connected to the controller for sending alarm information to the outside world.

[0021] The alarm can sound an alarm when a failure or abnormal situation occurs in the heat dissipation device, promptly reminding relevant personnel to pay attention and take corresponding measures to avoid further expansion of the failure and reduce losses and risks.

[0022] Furthermore, a filter is provided at one end of the rain cover away from the air outlet, and the filter is used to prevent external debris from entering the ventilation duct.

[0023] By setting up a filter, dust, rain, snow and other debris from the outside can be blocked from entering the ventilation ducts and energy storage containers, thereby improving the reliability of the equipment.

[0024] Furthermore, the ventilation duct is detachably connected to the heat dissipation portion and the air outlet respectively.

[0025] This arrangement facilitates the maintenance and cleaning of the ventilation duct and improves the maintainability of the equipment.

[0026] Furthermore, the rain cover is snap-connected with the air outlet.

[0027] This arrangement facilitates the installation and removal of the rain cover and facilitates the repair and maintenance of the heat dissipation device.

[0028] Compared with the prior art, the heat dissipation device for the energy storage converter in the energy storage container described in the utility model has the following advantages:

[0029] 1) A ventilation duct is set between the heat dissipation unit and the air outlet to facilitate the discharge of heat from the heat dissipation unit from the air outlet. The electric shutter is opened and closed under the control of the energy storage converter, which can not only provide appropriate ventilation volume, but also prevent dust and other debris from entering the electrical compartment. A rain cover is set at the air outlet to prevent dust, rain, snow and other debris from entering the ventilation duct, thereby ensuring the normal operation of the heat dissipation device and reducing maintenance costs.

[0030] 2) It can adjust the opening angle of the electric shutters and the speed of the driving fan in real time according to the temperature changes in the ventilation duct to achieve the best heat dissipation effect;

[0031] 3) It can control the working status of electric shutters and driving fans according to weather forecast information to cope with different weather conditions, which can not only reduce the impact of bad weather on the heat dissipation device and improve the reliability of the heat dissipation device, but also reduce the possibility of failure and reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the structure of the energy storage container according to an embodiment of the utility model;

[0033] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure at the middle BB;

[0034] Figure 3 for Figure 1 Schematic diagram of the structure from another perspective.

[0035] Description of reference numerals:

[0036] 1. Energy storage inverter; 11. Heat dissipation unit; 2. Heat dissipation device; 3. Air outlet; 4. Ventilation duct; 5. Electric shutter; 6. Rain cover; 7. Driving fan; 100. Energy storage container; 101. Electrical compartment. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0038] Example 1

[0039] like Figure 1-3As shown, a heat dissipation device for an energy storage converter in an energy storage container, the energy storage container 100 includes an electrical compartment 101, the electrical compartment 101 is provided with an energy storage converter 1 and a heat dissipation device 2, the energy storage converter 1 is provided with a heat dissipation portion 11, the heat dissipation portion 11 is provided with a heat dissipation fan 12, the side wall of the electrical compartment 101 is provided with an air outlet 3, the heat dissipation device 2 includes a ventilation duct 4 and an electric shutter 5, the ventilation duct 4 is used to connect the heat dissipation portion 11 and the air outlet 3, the air outlet 3 is provided with a rain cover 6 at one end away from the energy storage converter 1, the rain cover 6 is used to prevent external debris from entering the ventilation duct 4, the electric shutter 5 is provided at the air outlet 3, and the electric shutter 5 is automatically opened and closed under the control of the energy storage converter 1.

[0040] The heat dissipation device for the energy storage inverter in the energy storage container described in the present application is provided with a ventilation duct 4 between the heat dissipation part 11 and the air outlet 3, so as to facilitate the heat of the heat dissipation part 11 to be discharged from the air outlet 3, and the electric shutter 5 is opened and closed under the control of the energy storage inverter 1, which can not only provide a suitable ventilation volume, but also prevent external dust and other debris from entering the electrical compartment 101. A rain cover 6 is provided at the air outlet 3 to prevent external dust, rain, snow and other debris from entering the ventilation duct 4, thereby ensuring the normal operation of the heat dissipation device 2 and reducing maintenance costs.

[0041] Preferably, the electric blinds 5 belong to the prior art and are not described in detail here.

[0042] Preferably, the energy storage inverter 1 controls the opening angle of the electric blinds 5 by sending out PWM pulses. The opening angle of the electric blinds 5 is different according to the different PWM pulse widths. The larger the pulse width, the larger the opening angle. At the same time, the electric blinds 5 feed back signal nodes to the energy storage inverter 1 according to their own states. The energy storage inverter 1 determines whether the electric blinds 5 are normal through the signal nodes. The energy storage inverter 1 can only operate when the electric blinds 5 operate normally, and the energy storage inverter 1 controls the opening angle of the electric blinds 5 according to the output power and its own heating conditions.

[0043] Preferably, before the energy storage inverter 1 is started, the electric shutter 5 is controlled to be fully opened and then closed to test whether the electric shutter 5 is normal. When the electric shutter 5 operates normally, the energy storage inverter 1 is started. When the operating power of the energy storage inverter 1 is 0-10%, the opening angle of the electric shutter 5 is 30°. When the power of the energy storage inverter 1 is 10%-50%, the opening angle of the electric shutter 5 is 60°. When the power of the energy storage inverter 1 is 50%-100%, the opening angle of the electric shutter 5 is 90°.

[0044] As a preferred example of the present invention, the electric blinds 5 include a controller, which is electrically connected to the energy storage inverter 1 , and the controller controls the state of the electric blinds 5 according to the signal of the energy storage inverter 1 .

[0045] Specifically, this arrangement can achieve the coordinated work between the energy storage converter 1 and the electric blinds 5, improve the stability and reliability of the system, reduce manual intervention, and improve the automation level of the system.

[0046] As a preferred example of the present utility model, the heat dissipation device 2 includes a driving fan 7, which is located between the electric shutter 5 and the energy storage inverter 1. The driving fan 7 is used to push the air in the ventilation duct 4 to flow to the outside of the energy storage container 100. The driving fan 7 is electrically connected to the controller, and the controller is used to control the working state of the driving fan 7.

[0047] Specifically, the working state of the driving fan 7 is controlled by the controller, and the rotation speed of the driving fan 7 can be adjusted according to the heating condition and output power of the energy storage inverter 1 to achieve the best heat dissipation effect. This setting can effectively promote the air in the ventilation duct 4 to flow to the outside of the energy storage container 100, improve the heat dissipation effect, maintain the normal working temperature of the energy storage inverter 1, and improve the stability and reliability of the system.

[0048] As a preferred example of the present utility model, the heat dissipation device 2 includes a temperature sensor, which is arranged in the ventilation duct 4. The temperature sensor is electrically connected to the controller, and the controller controls the working status of the electric shutter 5 and the driving fan 7 according to the signal feedback from the temperature sensor.

[0049] Specifically, this configuration enables the controller to adjust the opening angle of the electric shutter 5 and the speed of the driving fan 7 in real time according to the temperature changes in the ventilation duct 4, so as to achieve the best heat dissipation effect and ensure the normal operation of the energy storage inverter 1.

[0050] As a preferred example of the present utility model, the heat dissipation device 2 includes a signal receiver, which is used to receive weather forecast information from a meteorological station. The signal receiver is electrically connected to a controller, and the controller controls the working status of the electric shutters 5 and the driving fan 7 according to the weather forecast information.

[0051] Specifically, this setting can control the working status of the electric shutter 5 and the driving fan 7 according to weather forecast information to cope with different weather conditions. It can not only reduce the impact of bad weather on the heat dissipation device 2 and improve the reliability of the heat dissipation device 2, but also reduce the possibility of failure and reduce maintenance costs.

[0052] As a preferred example of the present invention, the heat dissipation device 2 includes a signal transmitter, which is electrically connected to the controller and is used to send the operating status information of the heat dissipation device 2 to the control center.

[0053] Specifically, this arrangement facilitates the control center to understand the working status of the energy storage converter 1 and the heat dissipation device 2, to promptly discover and resolve faults, and to improve the stability of the system.

[0054] As a preferred example of the present invention, the heat dissipation device 2 includes an alarm, which is arranged on the side wall of the energy storage container 100 and is electrically connected to the controller for sending alarm information to the outside world.

[0055] Specifically, the alarm can sound an alarm when a failure or abnormality occurs in the heat dissipation device 2, so as to promptly remind relevant personnel to pay attention and take corresponding measures to avoid further expansion of the failure and reduce losses and risks.

[0056] As a preferred example of the present invention, a filter is provided at one end of the rain cover 6 away from the air outlet 3 , and the filter is used to prevent external debris from entering the ventilation duct 4 .

[0057] Specifically, by setting up a filter net, dust, rain, snow and other debris from the outside can be blocked from entering the ventilation duct 4 and the energy storage container 100, thereby improving the reliability of the equipment.

[0058] As a preferred example of the present invention, the ventilation duct 4 is detachably connected to the heat dissipation portion 11 and the air outlet 3 respectively.

[0059] Specifically, this arrangement facilitates the maintenance and cleaning of the ventilation duct 4 and improves the maintainability of the equipment.

[0060] As a preferred example of the present invention, the rain cover 6 is snap-connected with the air outlet 3 .

[0061] Specifically, this arrangement facilitates the installation and removal of the rain cover 6 and facilitates the repair and maintenance of the heat dissipation device 2.

[0062] In summary, the heat dissipation device for energy storage converter in energy storage container described in the present application has the following advantages: 1) a ventilation duct 4 is arranged between the heat dissipation part 11 and the air outlet 3, so that the heat of the heat dissipation part 11 can be discharged from the air outlet 3, and the electric shutter 5 is opened and closed under the control of the energy storage converter 1, which can not only provide a suitable ventilation volume, but also prevent dust and other debris from entering the electrical compartment 101, and a rain cover 6 is arranged at the air outlet 3 to prevent dust, rain, snow and other debris from entering the ventilation duct 4, so as to ensure the normal operation of the heat dissipation device 2 and reduce maintenance costs; 2) the opening angle of the electric shutter 5 and the speed of the driving fan 7 can be adjusted in real time according to the temperature change in the ventilation duct 4 to achieve the best heat dissipation effect; 3) the working state of the electric shutter 5 and the driving fan 7 can be controlled according to the weather forecast information to cope with different weather conditions, which can reduce the impact of bad weather on the heat dissipation device 2, improve the reliability of the heat dissipation device 2, and reduce the possibility of failure and reduce maintenance costs. Although the utility model is disclosed as above, the utility model is not limited to this. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be based on the scope defined by the claims.

Claims

1. A heat dissipation device for an energy storage converter in an energy storage container, the energy storage container (100) comprising an electrical compartment (101), the electrical compartment (101) being provided with an energy storage converter (1) and a heat dissipation device (2), the energy storage converter (1) being provided with a heat dissipation portion (11), the heat dissipation portion (11) being provided with a heat dissipation fan (12), the side wall of the electrical compartment (101) being provided with an air outlet (3), characterized in that: The heat dissipation device (2) comprises a ventilation duct (4) and an electric shutter (5); the ventilation duct (4) is used to connect the heat dissipation part (11) and the air outlet (3); a rain cover (6) is provided at one end of the air outlet (3) away from the energy storage converter (1); the rain cover (6) is used to prevent external debris from entering the ventilation duct (4); the electric shutter (5) is provided at the air outlet (3); and the electric shutter (5) is automatically opened and closed under the control of the energy storage converter (1).

2. The heat dissipation device for an energy storage converter in an energy storage container according to claim 1, characterized in that: The electric blind (5) comprises a controller, the controller is electrically connected to the energy storage converter (1), and the controller controls the state of the electric blind (5) according to a signal from the energy storage converter (1).

3. The heat dissipation device for the energy storage converter in the energy storage container according to claim 2, characterized in that: The heat dissipation device (2) comprises a driving fan (7), the driving fan (7) being located between the electric shutter (5) and the energy storage converter (1), the driving fan (7) being used to push the air in the ventilation duct (4) to flow to the outside of the energy storage container (100), the driving fan (7) being electrically connected to a controller, and the controller being used to control the working state of the driving fan (7).

4. The heat dissipation device for an energy storage converter in an energy storage container according to claim 2, characterized in that: The heat dissipation device (2) comprises a temperature sensor, which is arranged in the ventilation duct (4). The temperature sensor is electrically connected to a controller, and the controller controls the working states of the electric shutter (5) and the driving fan (7) according to a signal fed back by the temperature sensor.

5. The heat dissipation device for an energy storage converter in an energy storage container according to claim 2, characterized in that: The heat dissipation device (2) comprises a signal receiver, the signal receiver is used to receive weather forecast information from a meteorological station, the signal receiver is electrically connected to a controller, and the controller controls the working states of the electric shutter (5) and the driving fan (7) according to the weather forecast information.

6. The heat dissipation device for an energy storage converter in an energy storage container according to claim 2, characterized in that: The heat dissipation device (2) comprises a signal transmitter, the signal transmitter is electrically connected to the controller, and the signal transmitter is used to send the operating status information of the heat dissipation device (2) to the control center.

7. The heat dissipation device for an energy storage converter in an energy storage container according to claim 2, characterized in that: The heat dissipation device (2) comprises an alarm, which is arranged on the side wall of the energy storage container (100) and is electrically connected to the controller and is used to send alarm information to the outside world.

8. The heat dissipation device for an energy storage converter in an energy storage container according to claim 1, characterized in that: A filter screen is provided at one end of the rain cover (6) away from the air outlet (3), and the filter screen is used to prevent external debris from entering the ventilation duct (4).

9. The heat dissipation device for an energy storage converter in an energy storage container according to claim 1, characterized in that: The ventilation duct (4) is detachably connected to the heat dissipation portion (11) and the air outlet (3) respectively.

10. The heat dissipation device for an energy storage converter in an energy storage container according to claim 1, characterized in that: The rain cover (6) is snap-connected with the air outlet (3).

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