Power unit structure and electronic device

Abstract

The application provides a power unit structure and an electronic device. The power unit structure comprises a rectification function module, an inversion function module and a capacitor module. The rectification function module and the inversion function module are connected in a detachable manner, so as to facilitate independent disassembly and maintenance. The capacitor module is designed in a split type with the rectification function module and the inversion function module, so as to effectively reduce the weight and volume of a single function module. The capacitor module is provided with an input connecting piece and an output connecting piece. One end of the input connecting piece is connected with the rectification function module, and the other end is connected with an input end of the capacitor module, so as to realize electrical connection between the rectification function module and the capacitor module. One end of the output connecting piece is connected with the inversion function module, and the other end is connected with an output end of the capacitor module, so as to ensure reliable electrical connection between the inversion function module and the capacitor module. Each function module can be independently disassembled. When each function module needs to be maintained, only one person is needed to complete the corresponding maintenance work, so that the demand for manpower is greatly reduced.

Description

Technical Field

[0001] This application belongs to the field of high voltage power unit technology, and more specifically, relates to a power unit structure and electronic device. Background Technology

[0002] As the power range of high-voltage power units increases, the size and number of semiconductor devices used in a single power module also continue to increase. The weight of the power module increases linearly with the increase in device size or number, requiring multiple people to work together during transportation, installation, and maintenance. Furthermore, the large size and excessive weight of the power unit make manual operation extremely inconvenient when maintenance or component replacement is needed. Utility Model Content

[0003] This application aims to provide a power unit structure and electronic device to solve the technical problem that the power unit structure in the prior art is large in size and heavy in weight, making transportation and maintenance difficult.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0005] A power unit structure is provided, comprising:

[0006] A rectifier module and an inverter module that can be detachably connected to each other;

[0007] The capacitor module is separately configured from the rectifier module and the inverter module. The capacitor module includes an input connector and an output connector. One end of the input connector is connected to the rectifier module, and the other end of the input connector is connected to the input terminal of the capacitor module. One end of the output connector is connected to the inverter module, and the other end of the output connector is connected to the output terminal of the capacitor module.

[0008] As a further improvement to the above technical solution:

[0009] Optionally, the rectifier module is stacked on top of the inverter module, and the capacitor module is located on one side of the rectifier module and the inverter module.

[0010] Optionally, it includes fasteners and module connectors, one end of which is connected to the rectifier module via the fasteners, and the other end of which is connected to the inverter module via the fasteners.

[0011] Optionally, the number of module connectors is at least two, and they are respectively arranged on opposite sides of the rectifier function module and the inverter function module.

[0012] Optionally, the input connector includes a first connection segment and a second connection segment. The first connection segment extends from the rectifier module along the top surface of the capacitor module to the side surface having the input terminal of the capacitor module, and the second connection segment extends from the first connection segment to the input terminal of the capacitor module.

[0013] Optionally, the first connecting segment and the second connecting segment are detachably connected to each other.

[0014] Optionally, a first fixing bracket is connected to the rectifier module, the first fixing bracket being used to connect to an external cabinet;

[0015] And / or, a second fixed bracket connected to the inverter functional module, the second fixed bracket being used for connection to an external cabinet.

[0016] Optionally, a driver board is included, which is disposed on the outside of the sidewall of the rectifier functional module and / or the inverter functional module, and the driver board is signal connected to the inverter functional module.

[0017] Optionally, a cover plate is also included, which is connected to the outside of the side wall of the rectifier module and / or inverter module and covers the drive plate.

[0018] This application provides an electronic device including the power unit structure described above.

[0019] The beneficial effects of the power unit structure and electronic device provided in this application are as follows:

[0020] The power unit structure provided in this application includes a rectifier module, an inverter module, and a capacitor module. The rectifier and inverter modules are detachably connected for easy individual disassembly and maintenance. The capacitor module is designed separately from the rectifier and inverter modules, effectively reducing the weight and size of each module. The capacitor module has an input connector and an output connector. One end of the input connector is connected to the rectifier module, and the other end is connected to the input terminal of the capacitor module, achieving electrical connection between the rectifier module and the capacitor module. One end of the output connector is connected to the inverter module, and the other end is connected to the output terminal of the capacitor module, ensuring reliable electrical connection between the inverter module and the capacitor module. Therefore, since the capacitor module is heavier and requires more frequent maintenance than the rectifier and inverter modules, the split design facilitates the disassembly and installation of the capacitor module when it is moved out of the cabinet for maintenance. Furthermore, the inclusion of input and output connectors improves the ease of operation during disassembly and installation. These connectors allow the input and output connections of the capacitor module to be routed to easily accessible locations, enabling operation from a convenient and comfortable space. This modular design allows each functional module to be independently disassembled and reassembled. When a module requires maintenance, only one person is needed to complete the corresponding maintenance work, significantly reducing manpower requirements and simplifying transportation, on-site installation, and maintenance, while ensuring the overall performance of the power unit and the reliability of electrical connections.

[0021] The electronic device provided in this application includes the power unit structure described above, and therefore also has the advantages of the power unit structure described above. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A three-dimensional structural diagram of the power unit structure provided in this application. Figure 1 ;

[0024] Figure 2 A three-dimensional structural diagram of the power unit structure provided in this application. Figure 2 ;

[0025] Figure 3 A partial structural schematic diagram of the power unit structure provided in this application;

[0026] Figure 4This is a cross-sectional structural diagram of the power unit structure provided in this application.

[0027] The following are the labeling elements in the figure:

[0028] 1. Rectifier module; 2. Inverter module; 3. Capacitor module; 31. Input connector; 311. First connection section; 312. Second connection section; 32. Output connector; 4. Fastener; 5. Module connector; 6. First fixed bracket; 7. Second fixed bracket; 8. Cover plate. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of this utility model.

[0035] In the following description, suffixes such as "circuit," "component," "assembly," or "unit" are used only for the purpose of describing this utility model and have no specific meaning in themselves. Therefore, they can be used in combination.

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0037] To address the difficulties in transportation, maintenance, and installation caused by the excessive size and weight of power unit structures, such as... Figures 1 to 4 As shown, this application provides a power unit structure, which includes a capacitor module 3 and a rectifier module 1 and an inverter module 2 that are detachably connected to each other.

[0038] The rectifier module 1 and inverter module 2 are detachably connected for easy individual disassembly and maintenance. The capacitor module 3 is designed as a separate unit from both the rectifier module 1 and inverter module 2, effectively reducing the weight and size of each module. The capacitor module 3 has an input connector 31 and an output connector 32. One end of the input connector 31 is connected to the rectifier module 1, and the other end is connected to the input terminal of the capacitor module 3, establishing an electrical connection between them. One end of the output connector 32 is connected to the inverter module 2, and the other end is connected to the output terminal of the capacitor module 3, ensuring a reliable electrical connection between them. Through this modular design, each functional module can be independently disassembled and assembled. When a functional module needs maintenance, only one person is required to complete the corresponding maintenance work, which greatly reduces the manpower requirements and the difficulty of transportation and on-site maintenance, while ensuring the overall performance of the power unit and the reliability of electrical connections. Furthermore, since the capacitor module 3 is heavier than the rectifier module 1 and the inverter module 2 and has a higher maintenance frequency, the split design makes it easier to disassemble and install the capacitor module 3 when it is taken out of the cabinet for maintenance. In addition, by setting the input connector 31 and the output connector 32, the convenience of operation during disassembly and installation of the capacitor module 3 is also improved. The input and output connections of the capacitor module 3 can be led out to a convenient operating position through the input connector 31 and the output connector 32, so that a convenient and comfortable space can be selected for operation.

[0039] like Figures 1 to 4 As shown, in one specific embodiment of this application, the rectifier module 1 is stacked on top of the inverter module 2, forming a vertically modular layout. The capacitor module 3 is disposed on the same side of the rectifier module 1 and the inverter module 2, maintaining a parallel arrangement with the two functional modules. This arrangement makes full use of vertical space, ensuring a compact layout of the power unit structure in the horizontal direction. The stacked structure of the rectifier module 1 and the inverter module 2 effectively reduces the floor space while maintaining a reasonable spacing between the functional modules, facilitating heat dissipation and maintenance.

[0040] like Figure 1 As shown, in a specific embodiment of this application, the power unit structure further includes a fastener 4 and a module connector 5. The module connector 5 serves as a structural connector between the rectifier module 1 and the inverter module 2. One end of the connector is rigidly connected to the mounting interface of the rectifier module 1 via the fastener 4, while the other end is also fixed to the corresponding mounting position of the inverter module 2 using the fastener 4. This achieves a detachable connection between the modules, ensuring structural stability between the rectifier module 1 and the inverter module 2, and facilitating individual disassembly of the modules during maintenance. The module connector 5 can specifically be a metal connecting piece or a connecting plate, etc.

[0041] like Figure 1 As shown, in one specific embodiment of this application, the number of module connectors 5 is no less than two, and they are respectively arranged on opposite sides of the rectifier module 1 and the inverter module 2. This effectively balances the connection stress between the rectifier module 1 and the inverter module 2, preventing module deformation or loosening caused by unilateral force. The synergistic effect of multiple module connectors 5 improves the rigidity and stability of the overall structure, ensuring that the power unit can withstand various mechanical loads and vibration shocks during operation.

[0042] like Figures 1 to 4 As shown in one specific embodiment of this application, the input connector 31 adopts a segmented structure, including a first connecting segment 311 and a second connecting segment 312. The first connecting segment 311 is electrically connected to the rectifier module 1 at its starting end, extends horizontally along the top surface of the capacitor module 3 until it reaches the lateral position of the input terminal of the capacitor module 3. The second connecting segment 312 extends vertically downward from the end of the first connecting segment 311, and finally achieves a reliable connection with the input terminal of the capacitor module 3. This wiring layout facilitates the installation of the input connector 31 and avoids spatial interference with other functional components.

[0043] like Figures 1 to 4 As shown, in one specific embodiment of this application, the first connecting section 311 and the second connecting section 312 are detachably connected to facilitate modular assembly and maintenance of the power unit structure. When assembling the power unit structure into the unit cabinet, the rectifier module 1 and the inverter module 2 are first assembled into a single module via the module connector 5, and this combined module is installed in the front mounting position of the cabinet. The capacitor module 3 is independently installed in the rear space of the cabinet. During the assembly of the capacitor module 3, the first connecting section 311 is first fixedly installed on the terminal copper busbar of the rectifier module 1, and then the capacitor module 3 is pushed into the predetermined position of the cabinet along the guide rail. After the capacitor module 3 is positioned on the cabinet through the mounting holes reserved at the bottom of the capacitor module 3, the output connector 32 is connected to the inverter module 2, and finally the second connecting section 312 is docked and fixed to the pre-installed first connecting section 311. This step-by-step assembly method ensures accurate positioning of each functional module, achieves reliable electrical connection, and reduces installation difficulty.

[0044] like Figures 1 to 4As shown, in one specific embodiment of this application, the power unit structure includes a first fixing bracket 6 connected to the rectifier module 1. The first fixing bracket 6 is fixedly installed at a preset installation position of the rectifier module 1, and is used to achieve a reliable connection between the rectifier module 1 and the external cabinet. A second fixing bracket 7 is fixed to the corresponding installation position of the inverter module 2, and is used to establish the connection relationship between the inverter module 2 and the external cabinet. These two fixing brackets can be used individually or in combination.

[0045] The first fixed bracket 6 and the second fixed bracket 7 ensure the connection strength between the module and the cabinet and avoid interference with the internal electrical components of the power unit. This not only provides the necessary mechanical support for the stable operation of the power unit in the cabinet, but also facilitates disassembly operations during on-site installation and maintenance.

[0046] In one specific embodiment of this application, the power unit structure includes a driver board (not shown). The driver board is disposed on the outer side wall of either the rectifier module 1 or the inverter module 2. Alternatively, the driver board may be partially disposed on the outer side wall of the rectifier module 1 and partially disposed on the outer side wall of the inverter module 2. An electrical connection is then established with the inverter module 2 via wires. By physically isolating the driver board within the outer space of the rectifier module 1 and / or the inverter module 2, the impact of potential explosions or arcing of power devices (including the rectifier bridge and IGBT module) under abnormal operating conditions on the driver board is effectively reduced.

[0047] like Figure 2 As shown, in one specific embodiment of this application, the power unit structure is further provided with a cover plate 8, which is installed on the outer side wall of the rectifier module 1 and / or the inverter module 2, and completely covers the drive board. The cover plate 8 is detachably connected to the side wall of the rectifier module 1 and / or the inverter module 2 by fasteners, which not only ensures the protection performance of the drive board, but also facilitates maintenance operations on the drive board. The cover plate 8 is made of metal material, which can effectively shield electromagnetic interference, while having sufficient mechanical strength to protect the internal drive board from external impacts.

[0048] This application also provides an electronic device including the power unit structure described in the foregoing embodiments. In one application scenario, the electronic device is specifically implemented as a frequency converter, which integrates the power unit structure into the internal space of a cabinet according to a predetermined installation method to form a complete power electronic conversion system. This frequency converter fully utilizes the modular advantages of the power unit structure, wherein the rectifier module 1, the inverter module 2, and the capacitor module 3 are located inside the cabinet, which can ensure the reliability of the electrical connection between the functional modules, as well as the overall heat dissipation performance and maintainability of the equipment.

[0049] Since the electronic device has the power unit structure in the above embodiments, it also has the advantages of the power unit structure in the above embodiments.

[0050] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A power unit structure, characterized in that, include: A rectifier module (1) and an inverter module (2) that are detachably connected to each other; The capacitor module (3) is separately configured from the rectifier module (1) and the inverter module (2). The capacitor module (3) includes an input connector (31) and an output connector (32). One end of the input connector (31) is connected to the rectifier module (1), and the other end of the input connector (31) is connected to the input terminal of the capacitor module (3). One end of the output connector (32) is connected to the inverter module (2), and the other end of the output connector (32) is connected to the output terminal of the capacitor module (3).

2. The power unit structure as described in claim 1, characterized in that, The rectifier module (1) is stacked on top of the inverter module (2), and the capacitor module (3) is located on one side of the rectifier module (1) and the inverter module (2).

3. The power unit structure as described in claim 1, characterized in that, It includes a fastener (4) and a module connector (5). One end of the module connector (5) is connected to the rectifier module (1) via the fastener (4), and the other end of the module connector (5) is connected to the inverter module (2) via the fastener (4).

4. The power unit structure as described in claim 3, characterized in that, The number of the module connectors (5) is at least two, and they are respectively arranged on opposite sides of the rectifier module (1) and the inverter module (2).

5. The power unit structure as described in claim 1, characterized in that, The input connector (31) includes a first connection segment (311) and a second connection segment (312). The first connection segment (311) extends from the rectifier module (1) along the top surface of the capacitor module (3) to the side surface having the input terminal of the capacitor module (3). The second connection segment (312) extends from the first connection segment (311) to the input terminal of the capacitor module (3).

6. The power unit structure as described in claim 5, characterized in that, The first connecting segment (311) and the second connecting segment (312) are detachably connected to each other.

7. The power unit structure as described in claim 1, characterized in that, Includes a first fixed bracket (6) connected to the rectifier module (1), the first fixed bracket (6) being used to connect to an external cabinet; And / or, a second fixed bracket (7) connected to the inverter function module (2), the second fixed bracket (7) being used to connect to an external cabinet.

8. The power unit structure as described in claim 1, characterized in that, Includes a drive board, which is disposed on the outer side of the sidewall of the rectifier module (1) and / or the inverter module (2).

9. The power unit structure as described in claim 8, characterized in that, It also includes a cover plate (8), which is connected to the outside of the side wall of the rectifier module (1) and / or the inverter module (2) and covers the drive plate.

10. An electronic device, characterized in that, Includes the power unit structure as described in any one of claims 1 to 9.

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