Air-cooled energy storage converter emphasizing structural layout and converter unit

Abstract

The utility model provides an air-cooled energy storage converter and a converter unit which emphasize the structural layout. The utility model provides an air-cooled energy storage converter emphasizing structural layout. The air-cooled energy storage converter comprises a cabinet body, a main loop assembly, an auxiliary loop assembly and a functional loop assembly, an inner cavity of the cabinet body is divided into a first cavity and a second cavity by a vertical partition plate; the first cavity is divided into a first upper mounting chamber and a first lower mounting chamber by a transverse partition plate; the second cavity is divided into a second upper mounting chamber and a second lower mounting chamber by a transverse partition plate; the main loop assembly comprises a first main loop module, a second main loop module, a third main loop module, a fourth main loop module and a fifth main loop module; the auxiliary loop assembly comprises a plurality of auxiliary loop modules, and each auxiliary loop module is connected to a different point position in the main loop according to the function realized by the auxiliary loop module; the functional loop assembly comprises a plurality of functional modules, the plurality of functional modules are mutually independent, and the plurality of functional modules are arranged in the cabinet body according to functions realized by the plurality of functional modules.

Description

Technical Field

[0001] The present application relates to the field of air-cooled energy storage technology, and in particular to an air-cooled energy storage converter and converter unit focusing on structural layout. Background Art

[0002] With technological advancements, air-cooled energy storage converters have gained widespread adoption in various energy storage systems due to their significant advantages. In particular, in areas such as distributed energy, microgrids, photovoltaic energy storage, and wind energy storage, air-cooled systems offer advantages over liquid-cooled solutions, such as low maintenance costs, simpler structures, and greater adaptability. They are particularly suitable for outdoor and complex environments. Furthermore, the continuous optimization of the size and weight of air-cooled energy storage converters facilitates their integration into more compact energy storage solutions, driving their widespread adoption in applications such as residential energy storage systems, industrial energy storage, and grid frequency regulation, significantly increasing their market penetration.

[0003] Existing air-cooled energy storage converters try to be as small as possible while meeting power requirements. However, there are many components inside the air-cooled energy storage converter. Therefore, how to optimize the layout of each component while ensuring a compact structure and ensure ease of disassembly, assembly, and maintenance has become a hot topic of current research. Utility Model Content

[0004] In view of this, the present application provides an air-cooled energy storage converter and converter unit that focuses on structural layout, so as to optimize the layout of various components while ensuring a compact structure, and ensure the convenience of disassembly, assembly and maintenance.

[0005] Specifically, this application is implemented through the following technical solutions:

[0006] In a first aspect, the present application provides an air-cooled energy storage converter focusing on structural layout, wherein the air-cooled energy storage converter focusing on structural layout includes a cabinet, a main circuit component, an auxiliary circuit component, and a functional circuit component; wherein,

[0007] The inner cavity of the cabinet is divided into a first cavity and a second cavity by a vertical partition; the first cavity is divided into a first upper installation chamber and a first lower installation chamber by a horizontal partition; the second cavity is divided into a second upper installation chamber and a second lower installation chamber by a horizontal partition;

[0008] The main loop assembly includes a first main loop module, a second main loop module, a third main loop module, a fourth main loop module and a fifth main loop module; the first main loop module is installed on one side of the side plate of the first lower installation chamber close to the cabinet body, the second main loop module is installed on one side of the second lower installation chamber close to the front door plate of the cabinet body, the third main loop module is installed on one side of the second lower installation chamber close to the back plate of the cabinet body, the fourth main loop module is installed in the second lower installation chamber and the fourth main loop module is located above the third main loop module, and the fifth main loop module is installed at a position opposite to the fourth main loop module in the first lower installation chamber; wherein the external incoming line is sequentially connected to the first main loop module, the second main loop module, the third main loop module, the fourth main loop module and the fifth main loop module through the copper bar to form a main loop.

[0009] The auxiliary loop assembly includes a plurality of auxiliary loop modules, each auxiliary loop module is connected to different point positions in the main loop according to the function realized thereby; the auxiliary loop module is used to complete at least one of the following auxiliary functions: measurement, sampling, filtering and protection.

[0010] The functional loop assembly includes a plurality of functional modules, the plurality of functional modules are independent of each other, and the plurality of functional modules are arranged in the cabinet according to the functions realized thereby.

[0011] Optionally, the auxiliary loop assembly includes a first auxiliary loop module, a second auxiliary loop module, a third auxiliary loop module and a fourth auxiliary loop module, wherein,

[0012] The first auxiliary loop module is arranged on the side plate of the first lower installation chamber and is installed at one end close to the bottom plate of the cabinet body; the second auxiliary loop module is arranged at a position close to the fifth main loop module in the first lower installation chamber; the third auxiliary loop module is installed on one side of the vertical partition plate facing the first lower installation chamber and is arranged at one end close to the bottom plate of the cabinet body; and the fourth auxiliary loop module is installed at a position close to the second main loop module in the second lower installation chamber.

[0013] Optionally, the functional loop assembly includes a control module, a dehumidification module, a heating module, a fan module, a backup power supply module and a service module; wherein,

[0014] Optionally, the control module is installed in the first lower installation chamber and is located in front of the first main loop module, the fifth main loop module and the second auxiliary loop module;

[0015] Optionally, the dehumidification module is installed on the side panel of the second lower installation chamber, and the dehumidification module is arranged at a position close to the second main circuit module;

[0016] Optionally, the heating module is arranged on a side of the vertical partition facing the second lower installation chamber, and the heating module is arranged at a position close to the bottom plate of the cabinet;

[0017] Optionally, the fan module is arranged in the second upper installation chamber; the backup power supply module and the service module are arranged in the first upper installation chamber.

[0018] Optionally, the control module is a revolving door structure, which can be rotated 90° to facilitate maintenance of other modules behind the control module.

[0019] Optionally, the first main circuit module is a circuit breaker, the second main circuit module is a resistor assembly, the third main circuit module is a reactor, the fourth main circuit module is a power module, and the fifth main circuit module is a circuit breaker.

[0020] Optionally, the first auxiliary circuit module is an isolating switch component, the second auxiliary circuit module is a DC pre-charging component, and the third auxiliary circuit module and the fourth auxiliary circuit module are filter capacitor components.

[0021] Optionally, the cabinet is a sealed cabinet, the first lower installation chamber and the second lower installation chamber are provided with an air inlet, the first upper installation chamber and the second upper installation chamber are provided with an air outlet, and an air duct is provided in the cabinet to guide the wind introduced from the air inlet to the heat-generating component and then to the outside of the cabinet through the air outlet.

[0022] A second aspect of the present application provides a converter unit, which includes at least two sets of air-cooled energy storage converters with a focus on structural layout as provided in the present application.

[0023] The present application provides an air-cooled energy storage converter that focuses on structural layout. On the one hand, by dividing the inner cavity in the cabinet into a first cavity and a second cavity, and then dividing the first cavity into a first upper installation chamber and a first lower installation chamber, and dividing the second cavity into a second upper installation chamber and a second lower installation chamber by a transverse partition, the main circuit module, the auxiliary circuit module and the functional module are distributed in different spaces, avoiding stacking and crowding between components, improving space utilization efficiency, helping to reduce the overall size, while maintaining the functional independence of each module; on the other hand, each module is independent of each other and is partitioned according to function and maintenance requirements The layout can be independently disassembled and assembled, which is not only convenient for technical personnel to carry out disassembly, assembly, inspection, replacement and maintenance, but also can flexibly expand or upgrade modules according to different application requirements, with high scalability and adaptability; thirdly, by reasonably separating the main circuit components, auxiliary circuit components and functional circuit components, and combining them with the air cooling system, the components with larger heat generation can be placed together to form the best air duct setting, reduce the unutilized space due to too many air ducts when placed separately, and improve the space utilization rate. In this way, the heat dissipation can be concentrated to improve the heat dissipation effect, and the space utilization rate can be improved to make the structural layout more reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the internal structure layout of the air-cooled energy storage converter provided in this application, focusing on the structural layout;

[0025] Figure 2 This is an external schematic diagram of an air-cooled energy storage converter focusing on the structural layout, showing an exemplary embodiment of the present application.

[0026] Description of reference numerals:

[0027] 1: First main circuit module;

[0028] 2: Second main circuit module;

[0029] 3: The third main circuit module;

[0030] 4: The fourth main circuit module;

[0031] 5: Fifth main circuit module;

[0032] 6: First auxiliary circuit module;

[0033] 7: Second auxiliary circuit module;

[0034] 8: The third auxiliary circuit module;

[0035] 9: Fourth auxiliary circuit module;

[0036] 10: Dehumidification module;

[0037] 11: heating module;

[0038] 12: control module;

[0039] 13: fan module;

[0040] 14: Backup power module;

[0041] 15: Service module. DETAILED DESCRIPTION

[0042] Exemplary embodiments are described in detail herein, with examples illustrated in the accompanying drawings. When the following description refers to the drawings, identical numerals in different drawings represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with this application.

[0043] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms "a," "the," and "the" used in this application are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0044] It should be understood that although the terms first, second, third, etc. may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0045] Specific embodiments are given below to introduce the technical solutions of the present application in detail.

[0046] Figure 1 The internal structure layout diagram of the air-cooled energy storage converter provided in this application focuses on the structural layout. Figure 1 Figure (A) is a left side schematic diagram of the air-cooled energy storage converter provided by this application focusing on the structural layout, Figure (B) is a front side schematic diagram of the air-cooled energy storage converter provided by this application focusing on the structural layout, and Figure (C) is a right side schematic diagram of the air-cooled energy storage converter provided by this application focusing on the structural layout. Please refer to Figure 1 The air-cooled energy storage converter provided in this embodiment focuses on the structural layout and includes a cabinet, a main circuit component, an auxiliary circuit component and a functional circuit component; wherein,

[0047] The inner cavity of the cabinet is divided into a first cavity and a second cavity by a vertical partition; the first cavity is divided into a first upper installation chamber and a first lower installation chamber by a horizontal partition; the second cavity is divided into a second upper installation chamber and a second lower installation chamber by a horizontal partition;

[0048] The main circuit assembly includes a first main circuit module 1, a second main circuit module 2, a third main circuit module 3, a fourth main circuit module 4 and a fifth main circuit module 5; the first main circuit module 1 is installed on a side of the first lower installation chamber close to the side panel of the cabinet, the second main circuit module 2 is installed on a side of the second lower installation chamber close to the front door panel of the cabinet, the third main circuit module 3 is installed on a side of the second lower installation chamber close to the back panel of the cabinet, the fourth main circuit module 4 is installed in the second lower installation chamber, and the fourth main circuit module 4 is located above the third main circuit module 3, and the fifth main circuit module 5 is installed in the first lower installation chamber at a position opposite to the fourth main circuit module 4; wherein, the external incoming line is connected to the first main circuit module 1, the second main circuit module 2, the third main circuit module 3, the fourth main circuit module 4 and the fifth main circuit module 5 in sequence through a copper busbar to form a main circuit;

[0049] The auxiliary circuit assembly includes a plurality of auxiliary circuit modules, each of which is connected to a different point in the main circuit according to the function it implements; the auxiliary circuit module is used to perform at least one of the following auxiliary functions: measurement, sampling, filtering, and protection;

[0050] The functional circuit assembly includes a plurality of functional modules, which are independent of each other and are arranged in the cabinet according to the functions they implement.

[0051] For details, please refer to Figure 1 In Figure (B), the inner cavity of the cabinet is divided into two cavities distributed on the left and right by a vertical partition. For the convenience of distinction, the cavity on the left is called the first cavity, and the cavity on the right is called the second cavity. The space occupancy of the first cavity can be smaller than the space occupancy of the second cavity.

[0052] Furthermore, the first cavity is divided into two installation chambers by a transverse partition; the second cavity is also divided into two installation chambers by a transverse partition. For the convenience of distinction, the installation chamber located above is recorded as the upper installation chamber, and the installation chamber located below is recorded as the lower installation chamber.

[0053] Please continue to refer to Figure 1 In one possible implementation, the transverse partition is located above the transverse center line of the cabinet, close to the side of the top of the cabinet, so that the space of the first upper installation chamber is smaller than the space of the first lower installation chamber, and the space of the second upper installation chamber is smaller than the space of the second lower installation chamber.

[0054] It should be noted that the heights of the transverse partition used to divide the first installation chamber and the transverse partition used to divide the second installation chamber in the vertical direction can be the same or different, and this is not limited in this embodiment. Figure 1 In the example shown, the transverse partition for partitioning the first installation room and the transverse partition for partitioning the second installation room have the same height in the vertical direction.

[0055] For further information, please refer to Figure 1 It can be understood that, from the perspective of electrical principle and structural layout, the components in the cabinet are divided into main circuit components, auxiliary circuit components and functional circuit components. Among them, the main circuit component is composed of multiple main circuit modules, the auxiliary circuit component is composed of multiple auxiliary circuit modules, and the functional circuit component is composed of multiple functional modules. Among them, multiple main circuit modules are the main circuits of the converter, and each auxiliary circuit module is connected to different points of the main circuit according to functional requirements to provide various auxiliary functions. In addition, the functional circuit component includes a control module and other functional modules. Other functional circuits are automatically turned on according to the settings of the sensors in the cabinet, and are all controlled by the control module to complete various functions. For example, it can complete functions such as over-protection, dehumidification, heating, and power off.

[0056] Optionally, the present embodiment provides an air-cooled energy storage converter focusing on the structural layout, wherein the main circuit assembly includes a first main circuit module 1, a second main circuit module 2, a third main circuit module 3, a fourth main circuit module 4 and a fifth main circuit module 5. Please continue to refer to Figure 1 , wherein the first main circuit module 1 is installed on the side of the first lower installation chamber close to the side panel of the cabinet, which is the left side panel of the cabinet; the second main circuit module 2 is installed on the side of the second lower installation chamber close to the front door panel of the cabinet, the third main circuit module 3 is installed on the side of the second lower installation chamber close to the back panel of the cabinet, the fourth main circuit module 4 is installed in the second lower installation chamber, and the fourth main circuit module 4 is located above the third main circuit module 3, and the fifth main circuit module 5 is installed in the first lower installation chamber at a position opposite to the fourth main circuit module 4; wherein, the external incoming line is connected to the first main circuit module 1, the second main circuit module 2, the third main circuit module 3, the fourth main circuit module 4 and the fifth main circuit module 5 in sequence through a copper busbar to form a main circuit.

[0057] Optionally, in a possible implementation, the first main circuit module 1 is a circuit breaker, the second main circuit module 2 is a resistor assembly, the third main circuit module 3 is a reactor, the fourth main circuit module 4 is a power module, and the fifth main circuit module 5 is a circuit breaker.

[0058] In specific implementation, you can rely on the electrical schematic diagram to minimize the amount and complexity of wiring and make electrical connections for each main circuit module.

[0059] Optionally, in one possible implementation, the line entering the cabinet from the outside is connected to the first main loop module 1, and then passes through the second main loop module 2, the third main loop module 3, the fourth main loop module 4, and the fifth main loop module 5 in order of arrangement, and then the line exits from the fifth main loop module 5 and is connected to the user side to form the main loop.

[0060] Specifically, the first main circuit module 1 (circuit breaker) can control the on and off of the entire main circuit. When the air-cooled energy storage converter needs to be inspected and maintained, the circuit breaker can be used to control the air-cooled energy storage converter to be disconnected to protect the safety of the operator. In addition, if an unexpected state occurs in the main circuit, such as a short circuit, the first main circuit module 1 can quickly and automatically disconnect the main circuit path to protect the equipment to the greatest extent. Furthermore, the second main circuit module 2 (resistance component) can suppress the current in the main circuit. At the moment the air-cooled energy storage converter is powered on, it can prevent the generation of large currents that cause equipment failures. The third main circuit module 3 (reactor) can play a role in buffering current in the main circuit. When encountering rapid current changes, it helps stabilize the speed of current change so that the speed of current change changes smoothly and does not cause damage to the equipment as a whole. The fourth main circuit module 4 (power module) is the core component of the air-cooled energy storage inverter. This power module can flexibly adjust the output power according to system requirements to meet different energy storage and power supply needs, thereby achieving efficiency control of the air-cooled energy storage inverter. The fifth main circuit module 5 (circuit breaker) has the same function as the first main circuit module 1 (circuit breaker).

[0061] The air-cooled energy storage converter provided in this application focuses on structural layout, and can further improve the safety of the equipment by placing multiple circuit breakers at different positions in the main circuit.

[0062] Furthermore, the auxiliary loop assembly includes a plurality of auxiliary loop modules, and each auxiliary loop module can be installed at a different position in the main loop circuit according to the function to be realized by the auxiliary loop module.

[0063] In practical implementation, according to electrical principles, each auxiliary circuit module in the auxiliary circuit assembly is connected to the center of each main circuit module in the main circuit assembly to perform measurement, sampling, filtering, and other functions. In addition, the optimal location of each auxiliary circuit module can be selected based on its function and connected to the main circuit.

[0064] For details, please refer to Figure 1In a possible implementation, the auxiliary circuit assembly may include a first auxiliary circuit module 6, a second auxiliary circuit module 7, a third auxiliary circuit module 8 and a fourth auxiliary circuit module 9, wherein:

[0065] The first auxiliary circuit module 6 is arranged on the side panel of the first lower installation chamber, and the first auxiliary circuit module 6 is installed at one end close to the bottom plate of the cabinet; the second auxiliary circuit module 7 is arranged in the first lower installation chamber near the fifth main circuit module 5; the third auxiliary circuit module 8 is installed on the side of the vertical partition facing the first lower installation chamber, and the third auxiliary circuit module 8 is arranged at one end close to the bottom plate of the cabinet; the fourth auxiliary circuit module 9 is installed in the second lower installation chamber near the second main circuit module 2.

[0066] Optionally, in a possible implementation, the first auxiliary circuit module 6 is an isolating switch component, the second auxiliary circuit module 7 is a DC pre-charging component, and the third auxiliary circuit module 8 and the fourth auxiliary circuit module 9 are filter capacitor components.

[0067] For details, please refer to Figure 1 The first auxiliary circuit module 6 (isolating switch assembly) is located on the side panel of the first lower installation chamber and close to the bottom plate of the cabinet. When performing equipment maintenance or inspection on the air-cooled energy storage inverter, the operator can clearly see whether the main circuit is in the disconnected state, reducing the risk of operator misoperation. The isolating switch assembly can flexibly and accurately control the switching state of the main circuit circuit; the second auxiliary circuit module 7 (DC pre-charging assembly) is used to pre-charge the main circuit circuit when the air-cooled energy storage inverter is started, which can prevent large electrical changes at the moment of equipment startup and avoid damage to the components in the equipment. By setting the second auxiliary circuit module 7 in the first lower installation chamber close to the fifth main circuit module 5, it can be coordinated with the fifth main circuit module 5. When a fault occurs in the pre-charging of the main circuit circuit, the information can be transmitted to the circuit breaker in time, and the circuit breaker cuts off the circuit, thereby protecting the entire equipment.

[0068] Please continue to refer to Figure 1 The third auxiliary circuit module 8 and the fourth auxiliary circuit module 9 are both filter capacitor components. The third auxiliary circuit module 8 is installed on the left side of the vertical partition facing the first installation room, and is located lower, close to one end of the bottom plate of the cabinet; the fourth auxiliary circuit module 9 is installed in the second lower installation room near the second main circuit module 2.

[0069] It is understandable that both the third auxiliary circuit module 8 and the fourth auxiliary circuit module 9 can perform real-time filtering on the current and voltage signals in the air-cooled energy storage converter, reducing the impact of other factors, such as noise or interference, on the main circuit. The third auxiliary circuit module 8 and the fourth auxiliary circuit module 9 are respectively arranged in the first installation chamber and the second installation chamber, which can fully utilize the internal space of the cabinet. Moreover, the separate arrangement of the two can make the filtering effect on the main circuit more uniform, avoiding excessive filtering at a certain location in the main circuit or insufficient filtering at other locations.

[0070] It should be noted that the resistance component may generate noise and interference of a specific power when working. Therefore, setting the fourth auxiliary loop module 9 next to the second main loop module 2 can effectively filter the second main loop module 2 and suppress the generated electromagnetic interference.

[0071] It can be understood that each auxiliary circuit module is connected to different points in the main circuit according to the function it implements, and is used to complete at least one of the following auxiliary functions: measurement, sampling, filtering, and protection. When actually needed, the auxiliary circuit modules can be set as different components and arranged in specific positions to achieve specific functions.

[0072] Furthermore, the multiple functional modules are independent of each other, and the multiple functional modules are arranged in the cabinet according to the functions they implement.

[0073] Specifically, in a possible implementation, the functional circuit components include a control module 12, a dehumidification module 10, a heating module 11, a fan module 13, a backup power module 14 and a service module 15; wherein,

[0074] The control module 12 is installed in the first lower installation chamber and is located in front of the first main circuit module 1, the fifth main circuit module 5 and the second auxiliary circuit module 7;

[0075] The dehumidification module 10 is installed on the side panel of the second lower installation chamber, and the dehumidification module 10 is arranged at a position close to the second main circuit module 2;

[0076] The heating module 11 is arranged on a side of the vertical partition facing the second lower installation chamber, and the heating module 11 is arranged at a position close to the bottom plate of the cabinet;

[0077] The fan module 13 is arranged in the second upper installation chamber; the backup power module 14 and the service module 15 are arranged in the first upper installation chamber.

[0078] Please continue to refer to Figure 1,The functional loop component contains multiple functional modules, which enables the ,wind energy storage converter to realize various functions. A good layout ,can further improve the efficacy of each functional module.

[0079] Among them, the control module 12 is the core control unit of the air-cooled energy storage inverter, which is responsible for controlling and monitoring the entire air-cooled energy storage inverter. The control module 12 is arranged in the first lower installation room and is located in front of the first main loop module 1, the fifth main loop module 5 and the second auxiliary loop module 7. In this way, the control module 12 can be easily connected with the main loop module and the auxiliary loop module, and quickly obtain the operating status information in the main loop and control the auxiliary loop, so as to achieve precise control of the entire system.

[0080] Optionally, in a possible implementation, the control module 12 is a revolving door structure, which can be rotated 90° to facilitate maintenance of other modules behind the control module 12.

[0081] Furthermore, the dehumidification module 10 is used to remove moisture inside the cabinet, keep the air dry, and prevent the equipment in the cabinet from being affected by corrosion or degradation of insulation performance. Since the second main circuit module 2 is more susceptible to humid environments, the dehumidification module 10 is installed on the side panel of the second lower installation chamber, and the dehumidification module 10 is set at a position close to the second main circuit module 2. In this way, the second main circuit module 2 can be directly dehumidified here to ensure the normal function of the second main circuit module 2.

[0082] In addition, the heating module 11 can increase the temperature inside the cabinet under cold climate conditions to prevent the equipment from reducing performance due to low temperature or uneven temperature distribution, or even failing to operate normally. The heating module 11 is arranged on the side of the vertical partition facing the second lower installation chamber, and the heating module 11 is arranged at a position close to the bottom plate of the cabinet. In this way, the hot air blown out by the heating module 11 can be diffused into the entire cabinet to achieve uniform heating of the entire cabinet.

[0083] Furthermore, the fan module 13 is used to dissipate heat inside the cabinet. During the operation of the air-cooled energy storage converter, each main circuit module and auxiliary circuit module will generate a certain amount of heat. Therefore, the fan module 13 is required for ventilation to reduce the temperature inside the cabinet and ensure the normal operation of the system.

[0084] The backup power module 14 and service module 15 are located in the first upper installation room for easy maintenance. The backup power module 14 provides backup power to the air-cooled energy storage inverter in the event of a main power failure, maintaining operation. The service module 15 connects to and interacts with external systems, facilitating remote monitoring and management of the equipment in real time.

[0085] As can be understood from the preceding description, the air-cooled energy storage converter provided in this embodiment, which focuses on structural layout, comprises a total of 15 modules, including five main circuit modules, four auxiliary circuit modules, and six functional modules. These 15 modules are installed independently and then connected by wires or copper busbars. Furthermore, as can be seen from the preceding description, except for the third main circuit module 3, which requires replacement from the rear, all other modules can be removed and assembled from the front. All 15 modules can be removed and assembled independently of each other, allowing any damaged module to be removed independently without affecting the others.

[0086] The converter provided in this embodiment has, first, a compact structure and a small size. Second, each component is made into a modular form, and only the modules need to be disassembled or replaced. The wires will not cross each other, which reduces the time for assembly and maintenance.

[0087] This embodiment provides an air-cooled energy storage converter that focuses on structural layout. First, by dividing the inner cavity of the cabinet into a first cavity and a second cavity, further dividing the first cavity into a first upper installation chamber and a first lower installation chamber, and dividing the second cavity into a second upper installation chamber and a second lower installation chamber by a transverse partition, the main circuit module, auxiliary circuit module, and functional modules are distributed in different spaces, avoiding stacking and crowding between components, improving space utilization efficiency, helping to reduce the overall size, while maintaining the functional independence of each module. Second, each module is independent of each other and is arranged in partitions according to function and maintenance requirements, allowing for independent assembly and disassembly. This not only facilitates technicians to perform disassembly, assembly, inspection, replacement, and maintenance work, but also allows for flexible expansion or upgrading of modules according to different application requirements, with high scalability and adaptability. Third, components with high heat generation can be concentrated to form an optimal air duct arrangement, reducing the disadvantage of improving space utilization caused by excessive air ducts when the components are dispersed. In this way, heat dissipation and cooling can be concentrated to improve heat dissipation effects, while also improving space utilization and making the structural layout more reasonable.

[0088] In summary, the air-cooled energy storage converter provided in this embodiment focuses on structural layout and optimizes the arrangement of various components through a reasonable internal layout, thereby achieving more convenient disassembly, assembly, and maintenance while maintaining a compact structure.

[0089] Further, Figure 2 This is an external schematic diagram of an air-cooled energy storage converter focusing on the structural layout, showing an exemplary embodiment of the present application, wherein: Figure 2 Figure (A) is a front view of the external structure of the air-cooled energy storage converter, focusing on the structural layout. Figure 2 Figure (B) is a schematic diagram of the external back of the air-cooled energy storage converter focusing on the structural layout. Please also refer to Figure 1 and Figure 2In one possible implementation, the cabinet of the air-cooled energy storage converter provided in the present application, which focuses on the structural layout, is a sealed cabinet, the first lower installation chamber and the second lower installation chamber are provided with an air inlet, the first upper installation chamber and the second upper installation chamber are provided with an air outlet, and an air duct is provided in the cabinet to guide the wind introduced from the air inlet to the heat-generating component and then to the outside of the cabinet through the air outlet.

[0090] Specifically, setting the cabinet as a sealed cabinet can prevent rainwater from seeping into the cabinet on rainy days, causing short circuits or corrosion of internal equipment, thereby avoiding damage to the equipment; at the same time, since the environment in which the cabinet is located may contain a lot of dust, and the dust contains many impurity particles, the sealed cabinet can effectively prevent dust from entering the cabinet, protect the various components inside the cabinet, and avoid dust accumulation affecting the electrical insulation performance of the equipment, causing damage to the equipment.

[0091] In summary, setting the cabinet as a sealed cabinet can effectively prevent wind and dust from the air-cooled energy storage converter, allowing the air-cooled energy storage converter to operate stably even in heavy rain and environments with high dust concentrations.

[0092] At the same time, in order to improve the heat dissipation effect, air inlets are provided in the first lower installation chamber and the second lower installation chamber of the cabinet, and air outlets are provided in the first upper installation chamber and the second upper installation chamber. Furthermore, in order to improve the heat dissipation effect, an air duct is also provided in the cabinet, which is used to guide the wind introduced from the air inlet to the heat-generating components and then to the outside of the cabinet through the air outlet.

[0093] Specifically, the specific structural form of the air duct is determined based on actual needs and is not limited in this embodiment. It is understood that in the air-cooled energy storage converter provided in this embodiment, which focuses on the structural layout, the main heat-generating components are the power modules and reactors. Cooling air can be directed to the power modules and reactors through the air duct to reduce their temperature.

[0094] The air-cooled energy storage converter provided in this embodiment focuses on the structural layout. By providing a sealed cabinet, the internal components can be effectively protected. Furthermore, by providing air inlets and air outlets, air circulation inside and outside the cabinet can be achieved, helping the internal components to discharge the hot air generated, so that the internal components maintain the most suitable working temperature.

[0095] The second part of the present application also provides a converter unit, which includes at least two sets of air-cooled energy storage converters provided by the present application with a focus on structural layout.

[0096] Optionally, during the specific design, the number of converters can be set according to actual needs to facilitate system expansion and upgrade.

[0097] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. An air-cooled energy storage converter focusing on structural layout, characterized in that: The air-cooled energy storage converter focusing on the structural layout includes a cabinet, a main circuit component, an auxiliary circuit component and a functional circuit component; wherein, The inner cavity of the cabinet is divided into a first cavity and a second cavity by a vertical partition; the first cavity is divided into a first upper installation chamber and a first lower installation chamber by a horizontal partition; the second cavity is divided into a second upper installation chamber and a second lower installation chamber by a horizontal partition; The main circuit assembly includes a first main circuit module, a second main circuit module, a third main circuit module, a fourth main circuit module and a fifth main circuit module; the first main circuit module is installed on a side of the first lower installation chamber close to the side panel of the cabinet, the second main circuit module is installed on a side of the second lower installation chamber close to the front door panel of the cabinet, the third main circuit module is installed on a side of the second lower installation chamber close to the back panel of the cabinet, the fourth main circuit module is installed in the second lower installation chamber and the fourth main circuit module is located above the third main circuit module, and the fifth main circuit module is installed in the first lower installation chamber at a position opposite to the fourth main circuit module; wherein, the external incoming line is connected to the first main circuit module, the second main circuit module, the third main circuit module, the fourth main circuit module and the fifth main circuit module in sequence through a copper busbar to form a main circuit; The auxiliary circuit assembly includes a plurality of auxiliary circuit modules, each of which is connected to a different point in the main circuit according to the function it implements; the auxiliary circuit module is used to perform at least one of the following auxiliary functions: measurement, sampling, filtering, and protection; The functional circuit assembly includes a plurality of functional modules, which are independent of each other and are arranged in the cabinet according to the functions they implement.

2. The air-cooled energy storage converter focusing on structural layout according to claim 1 is characterized in that: The auxiliary circuit assembly includes a first auxiliary circuit module, a second auxiliary circuit module, a third auxiliary circuit module and a fourth auxiliary circuit module, wherein: The first auxiliary circuit module is arranged on the side panel of the first lower installation chamber, and the first auxiliary circuit module is installed at one end close to the bottom plate of the cabinet; the second auxiliary circuit module is arranged in the first lower installation chamber at a position close to the fifth main circuit module; the third auxiliary circuit module is installed on a side of the vertical partition facing the first lower installation chamber, and the third auxiliary circuit module is arranged at one end close to the bottom plate of the cabinet; the fourth auxiliary circuit module is installed in the second lower installation chamber at a position close to the second main circuit module.

3. The air-cooled energy storage converter focusing on structural layout according to claim 2 is characterized in that: The functional circuit components include a control module, a dehumidification module, a heating module, a fan module, a backup power module and a service module; wherein, The control module is installed in the first lower installation chamber and is located in front of the first main circuit module, the fifth main circuit module and the second auxiliary circuit module; The dehumidification module is installed on the side panel of the second lower installation chamber, and the dehumidification module is arranged at a position close to the second main circuit module; The heating module is arranged on a side of the vertical partition facing the second lower installation chamber, and the heating module is arranged at a position close to the bottom plate of the cabinet; The fan module is arranged in the second upper installation chamber; the backup power module and the service module are arranged in the first upper installation chamber.

4. The air-cooled energy storage converter focusing on structural layout according to claim 3 is characterized in that: The control module is a revolving door structure, which can be rotated 90 degrees to facilitate maintenance of other modules behind the control module.

5. The air-cooled energy storage converter focusing on structural layout according to claim 1 is characterized in that: The first main circuit module is a circuit breaker, the second main circuit module is a resistor component, the third main circuit module is a reactor, the fourth main circuit module is a power module, and the fifth main circuit module is a circuit breaker.

6. The air-cooled energy storage converter focusing on structural layout according to claim 2 is characterized in that: The first auxiliary circuit module is an isolating switch component, the second auxiliary circuit module is a DC pre-charging component, and the third auxiliary circuit module and the fourth auxiliary circuit module are filter capacitor components.

7. The air-cooled energy storage converter focusing on structural layout according to claim 1 is characterized in that: The cabinet is a sealed cabinet, the first lower installation chamber and the second lower installation chamber are provided with air inlets, the first upper installation chamber and the second upper installation chamber are provided with air outlets, and an air duct is provided in the cabinet to guide the wind introduced from the air inlet to the heat-generating component and then to the outside of the cabinet through the air outlet.

8. A converter unit, characterized in that: The converter unit includes at least two sets of air-cooled energy storage converters focusing on structural layout as described in any one of claims 1 to 7.

Images