Integrated electric control converter device and energy storage device

Abstract

The embodiment of the utility model provides an integrated electric control converter device and an energy storage device, the integrated electric control converter device comprises a box body, a first partition plate, a battery management system, an energy storage converter system and a first electric connector, and the box body is internally provided with an installation space; the first partition plate is arranged in the installation space so as to divide the installation space into a first installation cavity and a second installation cavity which are arranged in the horizontal direction. The battery management system is arranged in the first mounting cavity; the energy storage conversion system is arranged in the second mounting cavity; the first electric connecting piece is electrically connected with the battery management system and the energy storage conversion system. According to the integrated electric control converter device provided by the embodiment of the invention, the battery management system and the energy storage converter system are arranged in the same box body, so that the battery management system and the energy storage converter system can be assembled and disassembled in the energy storage device together, the total volume can be reduced, and the overall structure is more compact; the convenience of circuit arrangement is improved, and the adverse effect on normal work after the generated heat is diffused upwards is also reduced.

Description

Technical Field

[0001] This application relates to the field of energy storage technology, specifically to an integrated electronically controlled converter and an energy storage device. Background Technology

[0002] In related technologies, energy storage devices include a battery management system (BMS), a power control system (PCS), and a battery. The battery management system monitors parameters during the charging and discharging processes of the battery, while the power control system controls the charging and discharging processes of the battery and enables AC / DC conversion.

[0003] The battery management system and the energy storage converter system are set up independently, and are electrically connected to each other via cables. Because they are independent of each other, separate spaces need to be arranged for each of them in the energy storage device, which is not conducive to improving the space utilization efficiency of the energy storage device. Utility Model Content

[0004] In view of this, the embodiments of this application aim to provide an integrated electronically controlled converter and energy storage device that is beneficial to improving space utilization efficiency.

[0005] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0006] This application provides an integrated electrically controlled converter, the integrated electrically controlled converter comprising:

[0007] The enclosure has internal installation space.

[0008] A first partition is disposed within the installation space to divide the installation space into a first installation cavity and a second installation cavity arranged in a horizontal direction;

[0009] A battery management system is located within the first mounting cavity;

[0010] An energy storage converter system is located within the second mounting cavity;

[0011] The first electrical connector is used to electrically connect the battery management system and the energy storage converter system.

[0012] In some embodiments, the integrated electronically controlled converter further includes a second partition plate disposed within the second mounting cavity to divide the second mounting cavity into a first sub-cavity and a second sub-cavity arranged vertically. The first sub-cavity is located below the second sub-cavity, and a portion of the energy storage converter system is located within the first sub-cavity, while another portion is located within the second sub-cavity.

[0013] In some embodiments, the energy storage converter system includes an inductor assembly disposed within the first sub-cavity.

[0014] In some embodiments, the housing is provided with a first heat dissipation hole and a second heat dissipation hole, both of which are connected to the first sub-cavity and the outside of the housing. The first heat dissipation hole and the second heat dissipation hole are located on one side of opposite sides of the first sub-cavity along a first direction. The integrated electronically controlled converter also includes a first heat dissipation device, which is located in the first sub-cavity and is capable of generating airflow along the first direction. The first heat dissipation device and the inductor assembly are arranged along the first direction so that the airflow generated by the first heat dissipation device can flow through the inductor assembly.

[0015] In some embodiments, the housing is provided with a third heat dissipation hole and a fourth heat dissipation hole, both of which are connected to the first sub-cavity and the outside of the housing. The third heat dissipation hole and the fourth heat dissipation hole are located on one side of opposite sides of the first sub-cavity along a first direction. The integrated electronically controlled converter also includes a second heat dissipation device, which is located in the second sub-cavity and is capable of generating airflow along the first direction.

[0016] In some embodiments, the energy storage converter system includes an IGBT assembly disposed within the second sub-cavity, and the second heat dissipation device is arranged along a first direction with the IGBT assembly so that the airflow generated by the second heat dissipation device can flow through the IGBT assembly.

[0017] In some embodiments, the energy storage converter system further includes a busbar housing located within the second sub-cavity. The busbar housing has a busbar duct and an air passage. The air passage connects the second sub-cavity to the outside of the busbar housing. The busbar duct is open on one side along the first direction to form an installation port. The second heat dissipation device is covered by the installation port to form airflow within the busbar duct. At least a portion of the IGBT assembly is located within the busbar duct.

[0018] In some embodiments, the housing is provided with a fifth heat dissipation hole and a sixth heat dissipation hole, both of which are connected to the first mounting cavity and the outside of the housing, and are located on one side of opposite sides of the first mounting cavity along a first direction.

[0019] In some embodiments, the first electrical connector is a copper busbar, the first partition is provided with a mounting hole communicating with the first mounting cavity and the second mounting cavity, and a portion of the first electrical connector passes through the mounting hole;

[0020] And / or, the battery management system further includes a battery positive terminal interface, a battery negative terminal interface, a circuit breaker, a fuse, a current detection device, a second electrical connector, and a third electrical connector. The second electrical connector and the third electrical connector are both copper busbars. The battery positive terminal interface, the circuit breaker, and the fuse are electrically connected through the second electrical connector, and the battery negative terminal interface, the circuit breaker, and the current detection device are electrically connected through the third electrical connector.

[0021] This application also provides an energy storage device, which includes a battery device and any of the integrated electronically controlled converters described in the foregoing embodiments, wherein the battery device is electrically connected to the integrated electronically controlled converter.

[0022] The integrated electronically controlled converter in this embodiment combines the battery management system and the energy storage converter within the same housing, allowing for simultaneous assembly and disassembly within the energy storage device. This simplifies assembly and disassembly procedures, reduces the number of housings, and decreases the overall volume, resulting in a more compact overall structure. The horizontal arrangement of the battery management system and the energy storage converter lowers the center of gravity, reducing the probability of tipping and damage during transport and use. It also improves the ease of wiring arrangement for both the battery management system and the energy storage converter, as well as between them. Furthermore, it reduces the adverse effects of heat generated by either system spreading upwards and transferring to the other, thus minimizing its impact on the other's normal operation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of an integrated electronically controlled converter device from a first-view perspective in one embodiment of this application;

[0024] Figure 2 for Figure 1 A schematic diagram of an embodiment from a second perspective;

[0025] Figure 3 for Figure 1 A schematic diagram of an embodiment from a third-person perspective;

[0026] Figure 4 for Figure 1 The embodiment is shown in a fourth-view diagram after the removal of one side panel and top panel along the first direction;

[0027] Figure 5 for Figure 4 A schematic diagram of an embodiment from another perspective;

[0028] Figure 6 for Figure 4The embodiment shown is a schematic diagram after the partial removal of the energy storage converter system and the second partition.

[0029] Explanation of reference numerals in the attached figures

[0030] 10. Enclosure; 10a. Mounting space; 10b. First mounting cavity; 10c. Second mounting cavity; 10ca. First sub-cavity; 10cb. Second sub-cavity; 10d. First heat dissipation hole; 10da. First heat dissipation area; 10e. Second heat dissipation hole; 10ea. Second heat dissipation area; 10f. Third heat dissipation hole; 10g. Fourth heat dissipation hole; 10h. Fifth heat dissipation hole; 10i. Sixth heat dissipation hole; 11. Top plate; 12. Bottom plate; 13. Side plate; 20. First partition; 20a. Mounting hole; 30, Battery management system; 31, Circuit breaker; 32, Fuse; 33, Second electrical connector; 34, Third electrical connector; 40, Energy storage converter system; 41, Inductor assembly; 42, IGBT assembly; 43, Busbar housing; 43a, Busbar duct; 44, Capacitor board; 45, Main control unit; 46, Power board; 47, Output terminal; 48, Current sampling module; 50, First electrical connector; 60, Second partition; 70, First heat dissipation device; 71, Second heat dissipation device. Detailed Implementation

[0031] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific implementation should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application; the terms “comprising” and “having”, and any variations thereof, in the specification and the foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0033] In the description of the embodiments of this application, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0034] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0035] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0036] In the description of the embodiments of this application, for ease of explanation, as shown in the accompanying drawings, the direction of arrow X is referred to as the "vertical direction", the direction of arrow Y as the "first direction", and the direction of arrow Z as the "second direction".

[0037] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0038] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0039] The embodiments of this application will now be described in detail.

[0040] This application provides an integrated electrically controlled converter for use in energy storage devices, see reference. Figures 1 to 4 The integrated electronically controlled converter includes a housing 10, a first partition 20, a battery management system 30, an energy storage converter system 40, and a first electrical connector 50.

[0041] The housing 10 has an installation space 10a inside.

[0042] The first partition 20 is disposed within the installation space 10a to divide the installation space 10a into a first installation cavity 10b and a second installation cavity 10c arranged in a horizontal direction.

[0043] The battery management system 30 is located in the first mounting cavity 10b, and the energy storage converter system 40 is located in the second mounting cavity 10c.

[0044] The first electrical connector 50 electrically connects the battery management system 30 and the energy storage converter system 40.

[0045] The enclosure 10 provides a mounting location for the battery management system 30 and the energy storage converter system 40, and also serves to protect them.

[0046] The battery management system 30 is used to monitor, control, and collect various parameters of the battery device.

[0047] The energy storage converter system 40 is used to realize the AC and DC conversion of current, so that the current can interact between the battery device and the external power grid.

[0048] The battery management system 30 is located in the first mounting cavity 10b, and the energy storage converter system 40 is located in the second mounting cavity 10c. That is, the battery management system 30 and the energy storage converter system 40 are separated by the first partition 20 to reduce the risk of foreign objects entering the mounting space 10a and causing a short circuit between the battery management system 30 and the energy storage converter system 40.

[0049] Since the first mounting cavity 10b and the second mounting cavity 10c are arranged in a horizontal direction, the battery management system 30 and the energy storage converter system 40 are arranged in a horizontal direction, which helps to lower the center of gravity of the integrated electronic control converter.

[0050] It is understandable that both the battery management system 30 and the energy storage converter system 40 generate heat during operation, which in turn heats the air around them.

[0051] The battery management system 30 and the energy storage converter system 40 are electrically connected through the first electrical connector 50, so that the two can transmit electrical signals through the first electrical connector 50, so that the battery management system 30 can adaptively control the energy storage converter system 40 according to the electrical signals fed back by the energy storage converter system 40.

[0052] The integrated electronically controlled converter in this embodiment combines the battery management system 30 and the energy storage converter 40 within the same housing 10, allowing for simultaneous assembly and disassembly within the energy storage device. This simplifies assembly and disassembly procedures and reduces the number of housings 10, resulting in a smaller overall volume and a more compact structure. The horizontal arrangement of the battery management system 30 and the energy storage converter 40 lowers the center of gravity, reducing the probability of tipping and damage during transport and use. It also improves the ease of wiring arrangement for each system and between them. Furthermore, it reduces the risk of heat generated by either system diffusing upwards and affecting the other's normal operation.

[0053] The specific structural form of the box 10 is not limited.

[0054] For example, see Figure 1 , Figure 2 and Figure 3 The housing 10 includes a top plate 11, a bottom plate 12, and multiple side plates 13. The multiple side plates 13 are arranged horizontally to form a cavity. The top plate 11 covers the open position at the top of the cavity, and the bottom plate 12 covers the open position at the bottom of the cavity.

[0055] In some embodiments, at least one of the top plate 11, bottom plate 12, and side plate 13 is a sheet metal structure to simplify the manufacturing process.

[0056] It is understandable that the top plate 11 and the side plate 13, and the part of the side plate 13 and the bottom plate 12 are detachably connected, so that the battery management system 30 and the energy storage converter system 40 can be inspected by removing the top plate 11 and part of the side plate 13.

[0057] In some embodiments, the first partition 20 is a sheet metal structure to simplify the manufacturing process.

[0058] In some embodiments, the outer contour of the housing 10 has a cubic structure.

[0059] In some embodiments, see Figure 4 The integrated electronically controlled converter also includes a second partition 60, which is disposed in the second mounting cavity 10c to divide the second mounting cavity 10c into a first sub-cavity 10ca and a second sub-cavity 10cb arranged in a vertical direction. The first sub-cavity 10ca is located below the second sub-cavity 10cb. A part of the energy storage converter system 40 is located in the first sub-cavity 10ca and another part is located in the second sub-cavity 10cb.

[0060] In other words, the space inside the second mounting cavity 10c is divided into upper and lower layers by the second partition 60.

[0061] Thus, by further dividing the second mounting cavity 10c into upper and lower layers, and the energy storage converter system 40 into two parts located in the first sub-cavity 10ca and the second sub-cavity 10cb respectively, it is beneficial to improve the utilization efficiency of the vertical dimension of the second mounting cavity 10c, and further beneficial to improve the structural compactness of the integrated electronic control converter.

[0062] In some embodiments, the second partition 60 is a sheet metal structure to simplify the manufacturing process.

[0063] In some embodiments, see Figure 4 and Figure 6 The energy storage converter system 40 includes an inductor assembly 41, which is located within the first sub-cavity 10ca.

[0064] Inductor component 41 is mainly used for filtering and voltage regulation.

[0065] The inductor assembly 41 includes electrical wires and a magnetic core, and its mass is relatively large.

[0066] Thus, the relatively heavy inductor component 41 is located within the first sub-cavity 10ca, which helps to lower the center of gravity of the integrated electronically controlled converter and improves the stability of the integrated electronically controlled converter's layout.

[0067] It should be noted that the specific principles and related device structures of the inductor component 41 have already been applied in related technologies, and will not be elaborated here.

[0068] In some embodiments, the inductor assembly 41 is electrically connected to the battery management system 30 via the first electrical connector 50.

[0069] It is understandable that the inductor component 41 will generate heat during the harmonic elimination process.

[0070] In some embodiments, see Figure 1 , Figure 2 and Figure 3 The housing 10 is provided with a first heat dissipation hole 10d and a second heat dissipation hole 10e. The first heat dissipation hole 10d and the second heat dissipation hole 10e are respectively connected to the first sub-cavity 10ca and the outside of the housing 10. The first heat dissipation hole 10d and the second heat dissipation hole 10e are respectively located on one side of opposite sides of the first sub-cavity 10ca along the first direction.

[0071] Airflow outside the housing 10 can enter the first sub-cavity 10ca through one of the first heat dissipation hole 10d and the second heat dissipation hole 10e. The airflow can absorb the heat emitted by the inductor component 41 and carry the heat out of the housing 10 through the other of the first heat dissipation hole 10d and the second heat dissipation hole 10e.

[0072] This allows airflow from outside the housing 10 to continuously enter the first sub-cavity 10ca, improving heat dissipation and reducing the temperature of the inductor assembly 41 during operation, thus mitigating the adverse effects of high temperature on the normal operation of the inductor assembly 41. The first heat dissipation hole 10d and the second heat dissipation hole 10e are arranged opposite each other along the first direction, which helps to improve the flow efficiency of airflow and further enhance the heat dissipation effect.

[0073] It is understandable that the first direction is perpendicular to the vertical direction. In other words, the first direction is one of the horizontal directions.

[0074] In some embodiments, see Figure 4 and Figure 6 The integrated electronically controlled converter also includes a first heat dissipation device 70, which is located in the first sub-cavity 10ca and can generate airflow along the first direction. The first heat dissipation device 70 and the inductor assembly 41 are arranged along the first direction so that the airflow generated by the first heat dissipation device 70 can flow through the inductor assembly 41.

[0075] The first heat dissipation device 70 can drive the airflow in the first sub-cavity 10ca, thereby facilitating the continuous entry of external airflow into the first sub-cavity 10ca.

[0076] The first heat dissipation device 70 has an air inlet side on one side and an air outlet side on the other side along the first direction. Both sides can generate airflow along the first direction. The airflow on the air inlet side flows towards the first heat dissipation device 70 along the first direction, and the airflow on the air outlet side flows away from the first heat dissipation device 70 along the first direction.

[0077] The airflow generated by the first heat dissipation device 70 helps to improve the efficiency of airflow entering and exiting the first sub-cavity 10ca. At the same time, it helps the airflow to directly sweep over the surface of the inductor component 41, thereby further improving the heat dissipation effect of the inductor component 41.

[0078] In some embodiments where the number of first heat dissipation devices 70 is multiple, see [reference]. Figure 6 Each of the first heat dissipation devices is arranged perpendicular to the first direction. This helps to reduce the space occupied in the vertical direction, lower the height of the first sub-cavity 10ca in the vertical direction, and make the structure of the integrated electronically controlled converter more compact; it also helps to reduce the interference of airflow between the various first heat dissipation devices 70.

[0079] In some embodiments, see Figure 6 The first mounting cavity 10b and the first sub-cavity 10ca are arranged along the second direction, and the first direction, the second direction, and the vertical direction are perpendicular to each other. This helps to reduce the interference of the structure of the housing 10 surrounding the first mounting cavity 10b on the airflow entering and exiting the first sub-cavity 10ca, and improves the flow efficiency of the airflow entering and exiting the first sub-cavity 10ca.

[0080] In some embodiments, there are multiple first heat dissipation holes 10d, forming a first heat dissipation region 10da; and multiple second heat dissipation holes 10e, forming a second heat dissipation region 10ea. In a projection plane perpendicular to the first direction, one of the projections of the air inlet region of the first heat dissipation device 70 along the first direction and the projection of the air outlet region of the first heat dissipation device 70 along the first direction lies within the projection range of the first heat dissipation region 10da, and the other lies within the projection range of the second heat dissipation region 10ea. This further improves the flow efficiency of airflow into and out of the first sub-cavity 10ca.

[0081] The specific form of the first heat dissipation device 70 is not limited, such as a fan.

[0082] In some embodiments, see Figure 2 and Figure 3 The housing 10 is provided with a third heat dissipation hole 10f and a fourth heat dissipation hole 10g. The third heat dissipation hole 10f and the fourth heat dissipation hole 10g are respectively connected to the first sub-cavity 10ca and the outside of the housing 10. The third heat dissipation hole 10f and the fourth heat dissipation hole 10g are respectively located on one side of the opposite sides of the first sub-cavity 10ca along the first direction.

[0083] Airflow outside the enclosure 10 can enter the second sub-cavity 10cb through one of the third heat dissipation hole 10f and the fourth heat dissipation hole 10g. The airflow can absorb the heat emitted by the inductor component 41 and carry the heat out of the enclosure 10 through the other of the third heat dissipation hole 10f and the fourth heat dissipation hole 10g.

[0084] This allows airflow from outside the housing 10 to continuously enter the second sub-cavity 10cb, improving heat dissipation and reducing the temperature of the portion of the energy storage converter system 40 located in the second sub-cavity 10cb during operation. This also reduces the adverse effects of high temperatures on the normal operation of the portion of the energy storage converter system 40 located in the second sub-cavity 10cb. The third heat dissipation hole 10f and the fourth heat dissipation hole 10g are arranged opposite each other along the first direction, which helps to improve airflow efficiency and further enhances heat dissipation.

[0085] In some embodiments, see Figure 4 and Figure 5The integrated electronically controlled converter also includes a second heat dissipation device 71, which is located in the second sub-cavity 10cb and is capable of generating airflow along the first direction.

[0086] The second heat dissipation device 71 can drive the airflow in the second sub-cavity 10cb, thereby facilitating the continuous entry of external airflow into the second sub-cavity 10cb.

[0087] The second heat dissipation device 71 has an air inlet side on one side and an air outlet side on the other side along the first direction. Both sides can generate airflow along the first direction. The airflow on the air inlet side flows towards the second heat dissipation device 71 along the first direction, and the airflow on the air outlet side flows away from the second heat dissipation device 71 along the first direction.

[0088] The airflow generated by the second heat dissipation device 71 helps to improve the efficiency of airflow entering and exiting the second sub-cavity 10cb.

[0089] The specific form of the second heat dissipation device 71 is not limited, such as a fan.

[0090] In some embodiments, see Figure 4 and Figure 5 The energy storage converter system 40 includes an IGBT component 42, which is disposed in the second sub-cavity 10cb. The second heat dissipation device 71 and the IGBT component 42 are arranged along the first direction so that the airflow generated by the second heat dissipation device 71 can flow through the IGBT component 42.

[0091] Thus, the airflow generated by the second heat dissipation device 71 can better dissipate heat from the IGBT component 42, which is beneficial to improving the working stability of the IGBT component 42 and improving the working reliability of the integrated electronic control converter.

[0092] In some embodiments, see Figure 4 and Figure 5 The energy storage converter system 40 also includes a junction shell 43, which is located inside the second sub-cavity 10cb. The junction shell 43 is provided with a junction air duct 43a and an air passage. The air passage connects the second sub-cavity 10cb with the outside of the junction shell 43. The junction air duct 43a is open on one side along the first direction to form an installation port. The second heat dissipation device 71 is covered on the installation port to form airflow in the junction air duct 43a. At least a portion of the IGBT assembly 42 is located in the junction air duct 43a.

[0093] It is understandable that one of the air inlet area and air outlet area of ​​the second heat dissipation device 71 is in fluid communication with the converging air duct 43a, so that the airflow blown out or drawn in by the second heat dissipation device 71 can be constrained by the inner wall of the converging air duct 43a.

[0094] Thus, by restricting the airflow direction through the manifold 43, more airflow can flow over the surface of the IGBT component 42, thereby further improving the heat dissipation effect of the IGBT component 42.

[0095] In some embodiments, at least a portion of the IGBT assembly 42 is located in the confluence air duct 43a and in the airflow path between the air vent and the second heat dissipation device 71.

[0096] In some embodiments, the confluence duct 43a extends along a first direction, thereby reducing the kinetic energy loss of the airflow within the confluence duct 43a and further increasing the airflow rate across the surface of the IGBT component 42.

[0097] In some embodiments, see Figure 3 There are multiple third heat dissipation holes 10f, forming a third heat dissipation area. Similarly, there are multiple fourth heat dissipation holes 10g, forming a fourth heat dissipation area. In a projection plane perpendicular to the first direction, one of the projections of the air inlet area of ​​the third heat dissipation device along the third direction and the projection of the air outlet area of ​​the third heat dissipation device along the third direction lies within the projection of one of the third and fourth heat dissipation areas along the third direction. This further improves the flow efficiency of airflow into and out of the second sub-cavity 10cb.

[0098] In some embodiments, see Figure 4 and Figure 5 The energy storage converter system 40 also includes a capacitor plate 44, which is located in the second sub-cavity 10cb.

[0099] The capacitor plate 44 has functions such as filtering, energy storage and release, improving power factor and protecting circuit components.

[0100] This improves the space utilization within the second sub-cavity 10cb. In some embodiments, the capacitor plate 44 and the IGBT assembly 42 are arranged along a first direction to further improve the space utilization within the second sub-cavity 10cb.

[0101] In some embodiments, the energy storage converter system 40 further includes a power supply board 46 and a main control unit 45, which are electrically connected, and at least one of the power supply board 46 and the main control unit 45 is located within the second sub-cavity 10cb.

[0102] The main control unit 45 is used to monitor and control other components in the energy storage converter system 40 and to diagnose faults.

[0103] The power supply board 46 is used to provide DC current to other components in the energy storage converter system 40 and to manage and distribute the current.

[0104] At least one of the power supply board 46 and the main control unit 45 is located in the second sub-cavity 10cb, which helps to improve the space utilization rate within the second sub-cavity 10cb.

[0105] In some embodiments, the energy storage converter system 40 also includes an interface board located within the second sub-cavity 10cb.

[0106] The interface board is used to electrically connect to the battery management system 30 to enable communication between the battery management system 30 and the energy storage converter system 40. It can also be used to electrically connect to other devices such as the external power grid to exchange information.

[0107] In some embodiments, the energy storage converter system 40 further includes an output terminal 47 and a fourth electrical connector, with the interface board electrically connected to the output terminal 47 via the fourth electrical connector.

[0108] Output terminal 47 is mounted on housing 10 so that output terminal 47 can be electrically connected to external devices.

[0109] In some embodiments, see Figure 4 and Figure 5 The energy storage converter system 40 also includes a current sampling module 48, which is located in the second sub-cavity 10cb.

[0110] The current sampling module 48 is used to acquire current signals.

[0111] In some embodiments, see Figure 2 and Figure 3 The housing 10 is provided with a fifth heat dissipation hole 10h and a sixth heat dissipation hole 10i. The fifth heat dissipation hole 10h and the sixth heat dissipation hole 10i are respectively connected to the first mounting cavity 10b and the outside of the housing 10. The fifth heat dissipation hole 10h and the sixth heat dissipation hole 10i are respectively located on one side of the opposite sides of the first mounting cavity 10b along the first direction.

[0112] The airflow outside the housing 10 can enter the first sub-cavity 10ca through one of the fifth heat dissipation hole 10h and the sixth heat dissipation hole 10i. The airflow can absorb the heat emitted by the battery management system 30 and carry the heat out of the housing 10 through the other of the fifth heat dissipation hole 10h and the sixth heat dissipation hole 10i.

[0113] This allows airflow from outside the housing 10 to continuously enter the first mounting cavity 10b, improving heat dissipation and reducing the temperature of the battery management system 30 during operation, thus mitigating the adverse effects of high temperatures on the normal operation of the battery management system 30. The fifth heat dissipation hole 10h and the sixth heat dissipation hole 10i are arranged opposite each other along the first direction, which helps to improve airflow efficiency and further enhances heat dissipation.

[0114] In some embodiments, the battery management system 30 includes a circuit breaker 31, a BCU (Battery Control Unit), a fuse 32, and a current detection device.

[0115] Circuit breaker 31 is used to provide overcurrent protection, short circuit protection, undervoltage protection, and overvoltage protection.

[0116] The BCU is used to monitor the status of the battery in the energy storage device and control the charging and discharging process of the battery.

[0117] Fuse 32 is used to provide short-circuit protection, overload protection, and other functions.

[0118] A current detection device used to detect current.

[0119] In some embodiments, see Figure 4 and Figure 5 The battery management system 30 also includes a battery positive terminal interface, a battery negative terminal interface, a second electrical connector 33, and a third electrical connector 34. The second electrical connector 33 and the third electrical connector 34 are both copper busbars. The battery positive terminal interface, the circuit breaker 31, and the fuse 32 are electrically connected through the second electrical connector 33, and the battery negative terminal interface, the circuit breaker 31, and the current detection device are electrically connected through the third electrical connector 34.

[0120] In this way, the copper busbar enables the electrical connection of various components within the battery management system 30, which helps to improve space utilization and plays a role in preventing mistakes during assembly.

[0121] In some embodiments, see Figure 4 The first electrical connector 50 is electrically connected to the fuse 32 to serve as a power-off protection for the battery device.

[0122] In some embodiments, see Figures 4 to 6 The first electrical connector 50 is a copper busbar, and the first partition 20 is provided with a mounting hole 20a that connects the first mounting cavity 10b and the second mounting cavity 10c. A part of the first electrical connector 50 passes through the mounting hole 20a.

[0123] Copper busbars have a certain structural strength. Compared with flexible cables, copper busbars are less likely to deform under gravity, which is beneficial for extending the copper busbars vertically to improve the space utilization of the installation space 10a. At the same time, the fixed shape of the copper busbars is beneficial for preventing mistakes when assembling integrated electrical control converters.

[0124] In some embodiments, the mounting hole 20a connects the first mounting cavity 10b and the second sub-cavity 10cb, and the first electrical connector 50 passes through the second sub-cavity 10cb and the second partition 60 to be electrically connected to the portion of the energy storage converter system 40 located in the first sub-cavity 10ca, so that the portion of the energy storage converter system 40 located in the second sub-cavity 10cb is electrically connected to the first electrical connector 50.

[0125] This application also provides an energy storage device, which includes a battery device and any of the integrated electronically controlled converters in the foregoing embodiments, wherein the battery device and the integrated electronically controlled converter are electrically connected.

[0126] Integrated electronically controlled converters can control the charging and discharging of battery devices and monitor battery device parameters.

[0127] Thus, by adopting the integrated electronically controlled converter in the aforementioned embodiments, it is beneficial to reduce the number of components in the energy storage device, making the structure of the energy storage device more compact.

[0128] The various embodiments / implementations provided in this application can be combined with each other without creating contradictions.

[0129] The above are merely preferred embodiments of this application and are not intended to limit the embodiments in this application. For those skilled in the art, the embodiments of this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. An integrated electronically controlled converter, characterized in that, The integrated electronically controlled converter includes: The enclosure has internal installation space. A first partition is disposed within the installation space to divide the installation space into a first installation cavity and a second installation cavity arranged in a horizontal direction; A battery management system is located within the first mounting cavity; An energy storage converter system is located within the second mounting cavity; The first electrical connector is used to electrically connect the battery management system and the energy storage converter system.

2. The integrated electronically controlled converter according to claim 1, characterized in that, The integrated electronically controlled converter also includes a second partition plate, which is disposed in the second mounting cavity to divide the second mounting cavity into a first sub-cavity and a second sub-cavity arranged in a vertical direction. The first sub-cavity is located below the second sub-cavity, and a part of the energy storage converter system is located in the first sub-cavity and another part is located in the second sub-cavity.

3. The integrated electronically controlled converter according to claim 2, characterized in that, The energy storage converter system includes an inductor assembly, which is located within the first sub-cavity.

4. The integrated electronically controlled converter according to claim 3, characterized in that, The housing is provided with a first heat dissipation hole and a second heat dissipation hole. The first heat dissipation hole and the second heat dissipation hole are respectively connected to the first sub-cavity and the outside of the housing. The first heat dissipation hole and the second heat dissipation hole are respectively located on one side of the opposite sides of the first sub-cavity along a first direction. The integrated electronically controlled converter also includes a first heat dissipation device. The first heat dissipation device is located in the first sub-cavity and can generate airflow along the first direction. The first heat dissipation device and the inductor assembly are arranged along the first direction so that the airflow generated by the first heat dissipation device can flow through the inductor assembly.

5. The integrated electronically controlled converter according to claim 2, characterized in that, The housing is provided with a third heat dissipation hole and a fourth heat dissipation hole. The third heat dissipation hole and the fourth heat dissipation hole are respectively connected to the first sub-cavity and the outside of the housing. The third heat dissipation hole and the fourth heat dissipation hole are respectively located on one side of the opposite sides of the first sub-cavity along the first direction. The integrated electronically controlled converter also includes a second heat dissipation device. The second heat dissipation device is located in the second sub-cavity and can generate airflow along the first direction.

6. The integrated electronically controlled converter according to claim 5, characterized in that, The energy storage converter system includes an IGBT assembly, which is disposed in the second sub-cavity. The second heat dissipation device and the IGBT assembly are arranged along a first direction so that the airflow generated by the second heat dissipation device can flow through the IGBT assembly.

7. The integrated electronically controlled converter according to claim 6, characterized in that, The energy storage converter system further includes a junction shell located within the second sub-cavity. The junction shell is provided with a junction air duct and an air passage. The air passage connects the second sub-cavity to the outside of the junction shell. The junction air duct is open on one side along the first direction to form an installation port. The second heat dissipation device is covered by the installation port to form airflow within the junction air duct. At least a portion of the IGBT assembly is located within the junction air duct.

8. The integrated electronically controlled converter according to claim 1, characterized in that, The housing is provided with a fifth heat dissipation hole and a sixth heat dissipation hole. The fifth heat dissipation hole and the sixth heat dissipation hole are respectively connected to the first mounting cavity and the outside of the housing. The fifth heat dissipation hole and the sixth heat dissipation hole are respectively located on one side of the opposite sides of the first mounting cavity along the first direction.

9. The integrated electronically controlled converter according to claim 1, characterized in that, The first electrical connector is a copper busbar, and the first partition plate is provided with a mounting hole that connects the first mounting cavity and the second mounting cavity. A portion of the first electrical connector passes through the mounting hole. And / or, the battery management system further includes a battery positive terminal interface, a battery negative terminal interface, a circuit breaker, a fuse, a current detection device, a second electrical connector, and a third electrical connector. The second electrical connector and the third electrical connector are both copper busbars. The battery positive terminal interface, the circuit breaker, and the fuse are electrically connected through the second electrical connector, and the battery negative terminal interface, the circuit breaker, and the current detection device are electrically connected through the third electrical connector.

10. An energy storage device, characterized in that, The energy storage device includes a battery device and the integrated electronically controlled converter of any one of claims 1 to 9, wherein the battery device is electrically connected to the integrated electronically controlled converter.

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