WO2024016849A1 - Power unit and high-voltage frequency converter - Google Patents

Power unit and high-voltage frequency converter Download PDF

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Publication number
WO2024016849A1
WO2024016849A1 PCT/CN2023/097233 CN2023097233W WO2024016849A1 WO 2024016849 A1 WO2024016849 A1 WO 2024016849A1 CN 2023097233 W CN2023097233 W CN 2023097233W WO 2024016849 A1 WO2024016849 A1 WO 2024016849A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
optical fiber
port
capacitor
burning
Prior art date
Application number
PCT/CN2023/097233
Other languages
French (fr)
Chinese (zh)
Inventor
武宗祥
李振平
费龙
李玉相
袁建国
徐鲤庭
杨士伟
牛永刚
Original Assignee
苏州汇川控制技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 苏州汇川控制技术有限公司 filed Critical 苏州汇川控制技术有限公司
Publication of WO2024016849A1 publication Critical patent/WO2024016849A1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1438—Back panels or connecting means therefor; Terminals; Coding means to avoid wrong insertion

Definitions

  • This application relates to the technical field of power electronic equipment, and in particular to a power unit and a high-voltage frequency converter.
  • Common cascaded high-voltage inverter power units usually use independently packaged rectifier bridges, IGBTs and other power devices to realize the rectification and inverter functions of the power unit, and connect each device through copper-aluminum bars or cables, which will lead to cascading.
  • the power unit of the coupled high-voltage inverter has the problems of large size and low power density, and the assembly time of the power unit is long.
  • the main purpose of this application is to provide a power unit and a high-voltage frequency converter, aiming to improve the power density and assembly efficiency of the power unit.
  • a power unit which includes:
  • a power board, the power board is connected to the control board;
  • Unit frame the outer wall of the unit frame is recessed inward to form a capacitor socket
  • bus capacitor the bus capacitor is partially inserted into the capacitor socket and electrically connected to the power board;
  • a power device is fixed on the power board.
  • control board and the power board are provided in the unit frame
  • a connection terminal is formed on one end of the bus capacitor facing the capacitor insertion socket, and a positioning card hole is formed on the bottom of the capacitor insertion socket, and the connection terminal is inserted through the positioning card. hole to connect the end of the busbar copper bar away from the power board.
  • the power unit further includes a capacitor fixing member, the capacitor fixing member is covered outside the bus capacitor and is fixedly connected to the unit frame;
  • the capacitor fixing member is provided with a fixing claw facing the top wall of the bus capacitor.
  • the fixing claw elastically abuts the top wall of the bus capacitor to compress and fix the bus capacitor.
  • the unit frame is provided with a copper bar via hole that connects to the outside world
  • the power unit further includes a wall-through copper bar, and the wall-through copper bar is passed through the copper bar via hole and extends to all extending from the unit frame for electrical connection with the power board or the control board;
  • a sealing member is provided between the wall-through copper bar and the hole wall of the copper bar via hole.
  • the cross section of the copper row via hole gradually decreases from the outside toward the internal space of the unit frame.
  • the unit frame is provided with a burning port, and a burning port seal is provided at the burning port.
  • the burning port seal includes:
  • a burning port cover, the burning port cover is disposed on the burning port and can be an interference fit with the burning port;
  • Burning port fixing feet One end of the burning port fixing feet is fixedly connected to the burning port cover, and the other end is snap-connected to the unit frame.
  • the burning port fixing feet can be bent to drive the The burning port cover opens or seals the burning port.
  • the unit frame is provided with an optical fiber port
  • the optical fiber port is provided with an optical fiber port sealing member
  • the optical fiber port sealing member includes:
  • the optical fiber port cover is installed on the optical fiber port, the optical fiber port cover is provided with an optical fiber head through hole for plugging in the optical fiber head, and the optical fiber head through hole can be connected to the optical fiber port.
  • the optical fiber head has an interference fit;
  • the optical fiber port fixing foot is provided on the side of the optical fiber port cover facing the optical fiber port, and the optical fiber port fixing foot is snap-connected to the unit frame.
  • This application also proposes a power unit, which includes:
  • a power board the power board is connected to the control board through plug-in terminals;
  • a bus capacitor which is electrically connected to the power board through a bus copper bar;
  • a power device A rectifier module and an inverter module are packaged in the power device.
  • the power device is welded to the power board.
  • This application also proposes a high-voltage frequency converter, including any one of the aforementioned power units.
  • the technical solution of this application integrates the rectifier module and the inverter module into one package by arranging power devices, so there is no need to use connecting copper and aluminum bars or cables to connect the rectifier module, the inverter module and other power devices, and the power unit can be
  • the structure is more compact, thereby reducing the volume of the power unit, thereby increasing the power density of the power unit.
  • the control board and the power board of the power unit can be connected through plug-in terminals, thereby realizing a cable-free design of the entire power unit, allowing the power unit to be automatically assembled, thereby improving the efficiency of the power unit. assembly efficiency.
  • Figure 1 is an overall structural diagram of an embodiment of the power unit of the present application
  • Figure 2 is a partial structural diagram of the power unit in Figure 1;
  • Figure 3 is a schematic structural diagram of another part of the power unit in Figure 2;
  • Figure 4 is a schematic diagram of the assembly of the bus capacitor in Figure 1;
  • Figure 5 is another assembly diagram of the bus capacitor in Figure 4.
  • Figure 6 is a schematic diagram of the assembly of the wall-through copper bar in Figure 1;
  • Figure 7 is a schematic structural diagram of the wall-penetrating copper bar in Figure 6;
  • Figure 8 is an enlarged view of point A in Figure 1;
  • Figure 9 is a schematic structural diagram of the burning port seal in Figure 8.
  • Figure 10 is a schematic structural diagram of the optical fiber seal in Figure 8.
  • connection can be a fixed connection, a detachable connection, or an integral body; it can It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise clearly limited.
  • fixing can be a fixed connection, a detachable connection, or an integral body; it can It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise clearly limited.
  • This application proposes a power unit 100.
  • the power unit 100 includes:
  • Power board 20 the power board 20 is connected to the control board 10;
  • Unit frame 50 the outer wall of the unit frame 50 is recessed inward to form a capacitor insertion socket 51;
  • Bus capacitor 30 the bus capacitor 30 is partially inserted into the capacitor socket 51 and is electrically connected to the power board 20;
  • Power device 40 is fixed to the power board 20 .
  • the power unit 100 includes a control board 10, a power board 20, a bus capacitor 30 and a power device 40.
  • the power board 20 is connected to the control board 10; the bus capacitor 30 is electrically connected to the power board 20 through a bus copper bar 31.
  • the bus capacitor 30 may be, but is not limited to, a film capacitor; the power device 40 is fixed on the power board 20 .
  • the power unit 100 also includes a unit frame 50. The outer wall of the unit frame 50 is recessed inward to form a capacitor socket 51. The bus capacitor 30 is partially inserted in the capacitor socket 51 and electrically connected with the power board 20.
  • such an arrangement can make the part connecting the bus capacitor 30 and the power board 20 deep and sealed inside the power unit 100, which is beneficial to the normal operation of the bus capacitor 30, and can also expose the remaining parts of the bus capacitor 30 to the external air duct. , in order to dissipate heat to the bus capacitor 30.
  • the common cascade-type high-voltage inverter power unit 100 usually uses independently packaged rectifier bridges, IGBTs and other power devices 40 to realize the rectification and inverter functions of the power unit 100, and through copper-aluminum rows or cables Connecting various devices will cause the cascade-type high-voltage inverter power unit 100 to have problems such as large noise, large volume occupation, low power density, and the assembly time of the power unit 100 is long.
  • the technical solution of the present application is to provide an integrated power device 40 that integrates the rectifier module and the inverter module in one package, and the integrated power device 40 shares a power board 20 and a control board. 10.
  • the integrated power device 40 shares a power board 20 and a control board. 10.
  • it can effectively reduce stray inductance
  • it can reduce the assembly cost of the power unit 100 to a certain extent, and can The structure of the power unit 100 is made more compact, thereby reducing the occupied volume of the power unit 100 and increasing the power density of the power unit 100 .
  • control board 10 and the power board 20 are provided in the unit frame 50;
  • control board 10 and the power board 20 are disposed in the unit frame 50 .
  • the unit frame 50 can protect the internal power board 20 and the control board 10 to prevent external dust or other foreign matter from entering the unit frame 50 , interfering with the normal operation of the power board 20 and the control board 10; there are several functional devices, and several power devices 40 are arranged side by side on one side surface of the power board 20, wherein each power device 40 is packaged with a rectifier module and an inverter. Module; With this arrangement, since there is no need to use copper-aluminum bars or cables to connect power devices such as rectifier modules and inverter modules, it is beneficial to make the structure of the power unit 100 more compact, thereby increasing the power density of the power unit 100.
  • the power unit 100 is provided with two power devices 40 , and each power device 40 is provided with a heat sink on a side away from the power board 20 to achieve better heat dissipation effect on the power unit 100 ; of course , the technical solution of the present application is not limited to this, and one radiator can also be provided according to actual needs.
  • the radiator is provided between the two power devices 40 so that the two power devices 40 share a radiator for heat dissipation.
  • the overall volume of the power unit 100 is further reduced.
  • the specific implementation can be set according to actual needs and is not limited here.
  • a terminal is formed on one end of the bus capacitor 30 facing the capacitor socket 51, and a positioning card is formed on the bottom of the capacitor socket 51.
  • the wiring terminal is inserted through the positioning hole 511 to connect the end of the bus copper bar 31 away from the power board 20 .
  • a connection terminal is formed on one end of the bus capacitor 30 facing the capacitor insertion socket 51.
  • a corresponding positioning hole 511 is provided at the bottom of the capacitor insertion socket 51.
  • the connection terminal can be inserted through the positioning hole 511 to connect with the busbar.
  • One end of the copper bar 31 away from the power board 20 is connected to achieve electrical connection between the bus capacitor 30 and the power board 20; such an arrangement is conducive to rapid positioning of the bus capacitor 30 during assembly and improves the efficiency of the bus capacitor 30.
  • the assembly is convenient, and the positioning hole 511 can also limit the terminals, so that the bus capacitor 30 will not be deflected or slid due to external impact, thereby improving the structural stability of the bus capacitor 30 .
  • the power unit 100 further includes a capacitor fixing part 52.
  • the capacitor fixing part 52 is covered outside the bus capacitor 30 and connected with the unit.
  • the frame 50 is fixedly connected;
  • the capacitor fixing member 52 is provided with a fixing claw 521 toward the top wall of the bus capacitor 30 .
  • the fixing claw 521 elastically contacts the top wall of the bus capacitor 30 to compress and fix the bus capacitor 30 .
  • the power unit 100 also includes a capacitor fixing part 52.
  • the capacitor fixing part 52 is covered outside the bus capacitor 30 and is fixedly connected to the unit frame 50. Through the cooperation of the capacitor fixing part 52 and the capacitor socket 51 , the bus capacitor 30 can be better fixed on the unit frame 50 .
  • the capacitor fixing part 52 is provided with a fixing claw 521 on the top wall facing the bus capacitor 30, and the fixing claw 521 is set as an elastic member.
  • the fixed claw 521 can elastically contact the top wall of the bus capacitor 30. At this time, the fixed claw 521 elastically deforms and therefore has elastic potential energy.
  • the fixed claw 521 can apply a pressing force to the top wall of the bus capacitor 30. Therefore, the bus capacitor 30 can be pressed and fixed on the unit frame 50 .
  • the capacitor fixing parts 52 can be set to different sizes.
  • elastic material to adjust the size of the pressing force exerted by the capacitor fixing member 52 can also be adjusted by adjusting the number and size of the fixing claws 521, and the specific implementation can be set according to actual needs. , no limitation is made here.
  • the unit frame 50 is provided with a copper bar via hole 53 that connects to the outside world.
  • the power unit 100 also includes a wall-through copper bar 60.
  • the wall-through copper bar 60 is passed through the copper bar through hole 53 and extends into the unit frame 50 for electrical connection with the power board 20 or the control board 10;
  • a sealing member 61 is provided between the wall-through copper bar 60 and the hole wall of the copper bar via hole 53 .
  • the unit frame 50 is provided with a copper bar via hole 53 that connects to the outside world.
  • the power unit 100 also includes a wall-through copper bar 60 .
  • the wall-through copper bar 60 is passed through the copper bar via hole 53 and extends toward the unit frame 50 Extending in the middle, it is used to electrically connect with the control board 10 or power board 20 in the unit frame 50, and a seal 61 is provided between the wall copper bar 60 and the hole wall of the copper bar through hole 53, where the seal 61 can It is set as a sealant, etc.
  • the sealant has fluidity and can not only better fill the gap between the wall of the wall copper bar 60 and the copper bar via hole 53, but also improve the performance of the wall copper bar 60 and the copper bar via hole.
  • the sealing member 61 can also be made of elastic material, which can be deformed under pressure to seal the gap between the wall-through copper bar 60 and the hole wall of the copper bar through hole 53, relative to the sealing member 61
  • the seal 61 made of elastic material, configured as a sealant, can not only improve the sealing performance of the power unit 100, but also enable the power unit 100 to have better assembly and maintainability; the specific implementation can be based on actual needs. Set by yourself, no restrictions here.
  • the power unit 100 is usually installed in the air duct of the high-voltage inverter. Therefore, it is necessary to improve the sealing performance of the power unit 100 to prevent dust and corrosive gases from directly entering the power unit 100 and causing the power unit 100 to malfunction. operation; in actual production, due to processing and assembly errors, the cross-sectional size of the copper bar via hole 53 is usually slightly larger than the cross-sectional size of the through-wall copper bar 60 during design, so that there are assembly problems on the power unit 100 If there is a gap, there will be a risk of external dust or other foreign matter entering the power unit 100 . Therefore, it can be understood that the technical solution of the present application can improve the sealing performance of the unit frame 50 by arranging the seal 61 between the wall copper bar 60 and the hole wall of the copper bar via hole 53, thereby improving the power unit. 100% safe and reliable.
  • the sealing member 61 may be, but is not limited to, a sealing ring.
  • the material of the sealing ring may be, but is not limited to, rubber material.
  • the wall-through copper bar 60 is provided with a circumferential circumference of the copper bar via hole 53 .
  • the sealing groove is arranged in the sealing groove, and the sealing ring can partially protrude from the sealing groove; with such arrangement, the sealing groove can play a limiting role for the sealing ring, which can improve the positional stability of the sealing member 61, and the sealing ring It can also be placed close to the wall of the wall-through copper bar 60 and the copper bar via hole 53 due to extrusion deformation, thereby ensuring the sealing effect of the sealing member 61 .
  • the cross-section of the copper row via hole 53 gradually decreases from the outside toward the internal space of the unit frame 50 .
  • the cross-section of the copper bar via hole 53 gradually decreases from the outside to the internal space of the unit frame 50. Since the cross-sectional area of the end of the copper bar via hole 53 facing the outside is larger, it is advantageous for the copper bar to pass through the wall. 60 is inserted and the seal 61 is inserted; since the cross-sectional area of the end of the copper row via hole 53 away from the outside world is smaller, it is beneficial for the hole wall of the copper row via hole 53 to press and fix the seal 61, so that the seal 61 can be fixed. The connection strength and sealing performance between the wall-through copper bar 60 and the copper bar via hole 53 are improved.
  • the unit frame 50 is provided with a burning port, and a burning port seal 70 is provided at the burning port.
  • the burning port Seal 70 includes:
  • the burning port cover 71 is provided to cover the burning port and can interfere with the burning port;
  • Burning port fixing feet 72 One end of the burning port fixing feet 72 is fixedly connected to the burning port cover 71, and the other end is snap-connected to the unit frame 50.
  • the burning port fixing feet 72 are bendable. It is folded to drive the burning port cover 71 to open or seal the burning port.
  • the unit frame 50 is provided with a burning port.
  • the burning port is covered with a burning port seal 70 , and the burning port seal 70 can be opened and closed to facilitate the operation between the power units 100 . During the burning operation, or close the burning port to reduce the risk of external dust or other foreign matter entering the burning port.
  • the burning port seal 70 includes a burning port cover 71 and a burning port fixing foot 72, and its material may be but is not limited to an elastic material, such as silicone material.
  • the burning port cover 71 can have an interference fit with the burning port, which is beneficial to the burning card cover to better seal the burning port; the burning port is fixed
  • One end of the foot 72 is fixedly connected to the burning port cover 71 , and the other end is snap-connected to the unit frame 50 through a pull-out structure, and the burning port fixing foot 72 can be bent.
  • the burning port seal 70 When closed, the burning port fixing leg 72 is bent so that the burning port cover 71 can cover the burning card.
  • the burning port fixing leg 72 can release elastic potential energy and drive burning.
  • the port cover 71 rebounds toward the side of the burning port to open the burning port so that the power unit 100 can perform programming operations.
  • the sealing performance of the power unit 100 at the burning port can be improved; by fixing the burning port fixing feet 72 of the burning port seal 70 with the unit frame 50, The risk of losing the burning port seal 70 can be reduced, thereby improving the convenience of use of the power unit 100.
  • the unit frame 50 is provided with an optical fiber port
  • the optical fiber port is provided with an optical fiber port seal 80.
  • the optical fiber port seal 80 include:
  • the optical fiber port cover 81 covers the optical fiber port.
  • the optical fiber port cover 81 is provided with an optical fiber head through hole for plugging in the optical fiber head, and the optical fiber head passes through The hole is capable of an interference fit with the optical fiber head;
  • the fiber port fixing foot 82 is provided on the side of the fiber port cover 81 facing the fiber port.
  • the fiber port fixing foot 82 is snap-connected to the unit frame 50 .
  • the unit frame 50 is provided with an optical port, and the optical port is covered with an optical port seal 61.
  • the optical port seal 61 is provided with an optical head via hole, and the inner diameter of the optical fiber head via hole is Slightly smaller than the outer diameter of the optical fiber head, it can interfere with the optical fiber head inserted at the optical port for a long time, so as to improve the sealing performance of the power unit 100 at the optical port.
  • the optical fiber port seal 80 includes an optical fiber cover plate and an optical fiber fixing pin, and its material may be but is not limited to an elastic material, such as silicone material.
  • the optical fiber port cover 81 covers the optical fiber port.
  • the optical fiber port cover 81 is provided with a fiber head through hole for plugging in the fiber head and interference fit with the fiber head to make the fiber port seal. 80 has a better sealing effect.
  • the optical fiber port cover 81 is set as a thin-walled structure around the optical fiber head through hole. This arrangement can reduce the impact on the optical fiber port cover 81 and the optical drive port fixing foot when the optical fiber head is plugged and unplugged.
  • the outward pulling force can improve the connection stability of the fiber port seal 80 to a certain extent and facilitate the disassembly and assembly of the fiber head;
  • the fiber port fixing foot 82 is located on the side of the fiber port cover 81 facing the fiber port.
  • the port fixing pins 82 are snap-connected to the unit frame 50 through a pull-out structure.
  • multiple fiber port fixing pins 82 can be provided, and the multiple fiber port fixing pins 82 are arranged around the circumference of the fiber port cover 81, as shown in This can further improve the connection strength between the optical fiber port seal 80 and the unit frame 50 .
  • This application also proposes a power unit 100, which includes:
  • a power board 20, the power board 20 is connected to the control board through plug-in terminals;
  • Bus capacitor 30 the bus capacitor 30 is electrically connected to the power board 20 through the bus copper bar 31;
  • Power device 40 A rectifier module and an inverter module are packaged in the power device 40.
  • the power device 40 is welded to the power board 20.
  • the power unit 100 includes a control board 10, a power board 20, a bus capacitor 30 and a power device 40.
  • the power board 20 is connected to the control board 10 through plug-in terminals;
  • the bus capacitor 30 may be, but is not limited to, set to
  • the film capacitor and bus capacitor 30 are electrically connected to the power board 20 through the bus copper bar 31;
  • there are several power devices 40, and several of the power devices 40 are arranged side by side on one side surface of the power board 20 and welded to the power board 20 above, and each of the power devices 40 is packaged with a rectifier module and an inverter module; with such an arrangement, a cableless design of the power unit 100 can be achieved, thereby improving the ease of assembly of the power unit 100 so as to facilitate The power unit 100 is automatically assembled, thereby improving the assembly efficiency of the power unit 100 .
  • the high-voltage frequency converter includes the power unit 100 described in any of the foregoing embodiments.
  • the specific structure of the power unit 100 refer to any of the foregoing embodiments. Since the high-voltage frequency converter proposed in this application can apply all the technical solutions in all the foregoing embodiments, it has at least all the beneficial effects brought by the foregoing technical solutions, which will not be described again here.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Inverter Devices (AREA)

Abstract

The present application proposes a power unit and a high-voltage frequency converter. The power unit comprises a control board, a power board, a unit frame, a bus capacitor and a power device, wherein the power board is connected to the control board; for the unit frame, an outer wall of the unit frame is recessed inwards to form a capacitor insertion seat; the bus capacitor is partially inserted into the capacitor insertion seat and is electrically connected to the power board; and the power device is fixed on the power board.

Description

功率单元和高压变频器Power units and high-voltage frequency converters
本申请要求于2022年7月20日申请的、申请号为202210857400.9的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims priority to the Chinese patent application with application number 202210857400.9 filed on July 20, 2022, the entire content of which is incorporated into this application by reference.
技术领域Technical field
本申请涉及电力电子设备技术领域，特别涉及一种功率单元和高压变频器。This application relates to the technical field of power electronic equipment, and in particular to a power unit and a high-voltage frequency converter.
背景技术Background technique
常见的级联型高压变频器功率单元，通常采用独立封装的整流桥、IGBT等功率器件来实现功率单元整流、逆变的功能，并通过铜铝排或线缆连接各个器件，便会导致级联型高压变频器功率单元存在体积较大、功率密度不高的问题，并且功率单元的装配工时较长。Common cascaded high-voltage inverter power units usually use independently packaged rectifier bridges, IGBTs and other power devices to realize the rectification and inverter functions of the power unit, and connect each device through copper-aluminum bars or cables, which will lead to cascading. The power unit of the coupled high-voltage inverter has the problems of large size and low power density, and the assembly time of the power unit is long.
技术问题technical problem
本申请的主要目的是提供一种功率单元和高压变频器，旨在提高功率单元的功率密度和装配效率。The main purpose of this application is to provide a power unit and a high-voltage frequency converter, aiming to improve the power density and assembly efficiency of the power unit.
技术解决方案Technical solutions
为实现上述目的，本申请提出的一种功率单元，所述功率单元包括：In order to achieve the above objectives, this application proposes a power unit, which includes:
控制板；control panel;
功率板，所述功率板与所述控制板连接；A power board, the power board is connected to the control board;
单元框架，所述单元框架的外壁向内凹进设置，以形成电容插设座；Unit frame, the outer wall of the unit frame is recessed inward to form a capacitor socket;
母线电容，所述母线电容部分插设于所述电容插设座内，并与所述功率板电连接；以及A bus capacitor, the bus capacitor is partially inserted into the capacitor socket and electrically connected to the power board; and
功率器件，所述功率器件固定于所述功率板。A power device is fixed on the power board.
在一实施例中，所述控制板和所述功率板设置在所述单元框架中；In one embodiment, the control board and the power board are provided in the unit frame;
所述功率器件设有若干，若干所述功率器件并排设置于所述功率板的一侧表面。There are several power devices, and several power devices are arranged side by side on one side surface of the power board.
在一实施例中，所述母线电容朝向所述电容插设座的一端形成有接线端子，所述电容插设座的底部对应形成有定位卡孔，所述接线端子穿设于所述定位卡孔，以连接所述母线铜排的远离所述功率板的一端。In one embodiment, a connection terminal is formed on one end of the bus capacitor facing the capacitor insertion socket, and a positioning card hole is formed on the bottom of the capacitor insertion socket, and the connection terminal is inserted through the positioning card. hole to connect the end of the busbar copper bar away from the power board.
在一实施例中，所述功率单元还包括电容固定件，所述电容固定件罩设在所述母线电容的外侧，并与所述单元框架固定连接；In one embodiment, the power unit further includes a capacitor fixing member, the capacitor fixing member is covered outside the bus capacitor and is fixedly connected to the unit frame;
所述电容固定件朝向所述母线电容的顶壁设有固定爪，所述固定爪弹性抵接于所述母线电容的顶壁，以压紧固定所述母线电容。The capacitor fixing member is provided with a fixing claw facing the top wall of the bus capacitor. The fixing claw elastically abuts the top wall of the bus capacitor to compress and fix the bus capacitor.
在一实施例中，所述单元框架开设有连通外界的铜排过孔，所述功率单元还包括穿墙铜排，所述穿墙铜排穿设于所述铜排过孔，并向所述单元框架中延伸，用于与所述功率板或所述控制板电连接；In one embodiment, the unit frame is provided with a copper bar via hole that connects to the outside world, and the power unit further includes a wall-through copper bar, and the wall-through copper bar is passed through the copper bar via hole and extends to all extending from the unit frame for electrical connection with the power board or the control board;
所述穿墙铜排和所述铜排过孔的孔壁之间设置密封件。A sealing member is provided between the wall-through copper bar and the hole wall of the copper bar via hole.
在一实施例中，所述铜排过孔的横截面自外界向所述单元框架的内部空间逐渐减小。In one embodiment, the cross section of the copper row via hole gradually decreases from the outside toward the internal space of the unit frame.
在一实施例中，所述单元框架设有烧录口，所述烧录口处设有烧录口密封件，所述烧录口密封件包括：In one embodiment, the unit frame is provided with a burning port, and a burning port seal is provided at the burning port. The burning port seal includes:
烧录口盖板，所述烧录口盖板盖设于所述烧录口，并能够与所述烧录口过盈配合；和A burning port cover, the burning port cover is disposed on the burning port and can be an interference fit with the burning port; and
烧录口固定脚，所述烧录口固定脚的一端固定连接所述烧录口盖板，另一端与所述单元框架卡扣连接，所述烧录口固定脚可弯折设置，以带动所述烧录口盖板开启或密封所述烧录口。Burning port fixing feet. One end of the burning port fixing feet is fixedly connected to the burning port cover, and the other end is snap-connected to the unit frame. The burning port fixing feet can be bent to drive the The burning port cover opens or seals the burning port.
在一实施例中，所述单元框架设有光纤口，所述光纤口处设有包括光纤口密封件，所述光纤口密封件包括：In one embodiment, the unit frame is provided with an optical fiber port, and the optical fiber port is provided with an optical fiber port sealing member, and the optical fiber port sealing member includes:
光纤口盖板，所述光纤口盖板盖设于所述光纤口，所述光纤口盖板开设有光纤头过孔，用于插接所述光纤头，且所述光纤头过孔能够和所述光纤头过盈配合；和Optical fiber port cover, the optical fiber port cover is installed on the optical fiber port, the optical fiber port cover is provided with an optical fiber head through hole for plugging in the optical fiber head, and the optical fiber head through hole can be connected to the optical fiber port. The optical fiber head has an interference fit; and
光纤口固定脚，所述光纤口固定脚设于所述光纤口盖板朝向所述光纤口的一侧，所述光纤口固定脚与所述单元框架卡扣连接。The optical fiber port fixing foot is provided on the side of the optical fiber port cover facing the optical fiber port, and the optical fiber port fixing foot is snap-connected to the unit frame.
本申请还提出一种功率单元，所述功率单元包括：This application also proposes a power unit, which includes:
一控制板；a control panel;
一功率板，所述功率板通过对插端子与所述控制板连接；A power board, the power board is connected to the control board through plug-in terminals;
母线电容，所述母线电容通过母线铜排与所述功率板电连接；以及A bus capacitor, which is electrically connected to the power board through a bus copper bar; and
功率器件，所述功率器件内封装有整流模块和逆变模块，所述功率器件焊接于所述功率板，所述功率器件设有若干，若干所述功率器件并排设置于所述功率板的一侧表面。A power device. A rectifier module and an inverter module are packaged in the power device. The power device is welded to the power board. There are several power devices. Several of the power devices are arranged side by side on one side of the power board. side surface.
本申请还提出一种高压变频器，包括前述任意一项所述的功率单元。This application also proposes a high-voltage frequency converter, including any one of the aforementioned power units.
有益效果beneficial effects
本申请的技术方案，通过设置功率器件，使整流模块和逆变模块集成在一个封装内，便无须使用连接铜铝排或线缆连接整流模块和逆变模块等功率器件，能够使功率单元的结构更加紧凑，从而，减少了功率单元的体积，由此即可提高功率单元的功率密度。进一步地，功率单元的控制板和功率板之间可以是通过对插端子连接，由此即可实现整个功率单元的无线缆化设计，使得功率单元能够进行自动化装配，从而，提高了功率单元的装配效率。The technical solution of this application integrates the rectifier module and the inverter module into one package by arranging power devices, so there is no need to use connecting copper and aluminum bars or cables to connect the rectifier module, the inverter module and other power devices, and the power unit can be The structure is more compact, thereby reducing the volume of the power unit, thereby increasing the power density of the power unit. Furthermore, the control board and the power board of the power unit can be connected through plug-in terminals, thereby realizing a cable-free design of the entire power unit, allowing the power unit to be automatically assembled, thereby improving the efficiency of the power unit. assembly efficiency.
附图说明Description of drawings
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。In order to explain the embodiments of the present application or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without exerting creative efforts.
图1为本申请功率单元一实施例的整体结构图；Figure 1 is an overall structural diagram of an embodiment of the power unit of the present application;
图2为图1中功率单元的部分结构示意图；Figure 2 is a partial structural diagram of the power unit in Figure 1;
图3为图2中功率单元的另一部分结构示意图；Figure 3 is a schematic structural diagram of another part of the power unit in Figure 2;
图4为图1中母线电容的装配示意图；Figure 4 is a schematic diagram of the assembly of the bus capacitor in Figure 1;
图5为图4中母线电容的另一装配示意图；Figure 5 is another assembly diagram of the bus capacitor in Figure 4;
图6为图1中穿墙铜排的装配示意图；Figure 6 is a schematic diagram of the assembly of the wall-through copper bar in Figure 1;
图7为图6中穿墙铜排的结构示意图；Figure 7 is a schematic structural diagram of the wall-penetrating copper bar in Figure 6;
图8为图1中A处的放大图；Figure 8 is an enlarged view of point A in Figure 1;
图9为图8中烧录口密封件的结构示意图；Figure 9 is a schematic structural diagram of the burning port seal in Figure 8;
图10为图8中光纤密封件的结构示意图。Figure 10 is a schematic structural diagram of the optical fiber seal in Figure 8.
附图标号说明：Explanation of reference numbers:
标号 名称 标号 名称
100 功率单元 521 固定爪
10 控制板 53 铜排过孔
20 功率板 60 穿墙铜排
30 母线电容 61 密封件
31 母线铜排 70 烧录口密封件
40 功率器件 71 烧录口盖板
50 单元框架 72 烧录口固定脚
51 电容插设座 80 光纤口密封件
511 定位卡孔 81 光纤口盖板
52 电容固定件 82 光纤口固定脚
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
label name label name
100 Power unit 521 fixed claw
10 control panel 53 Copper row via holes
20 Power board 60 Wall copper strip
30 bus capacitance 61 Seals
31 Bus copper bar 70 Burning port seal
40 power component 71 Burning port cover
50 unit frame 72 Burning port fixing feet
51 Capacitor socket 80 Optical fiber port seal
511 Positioning hole 81 Fiber optic port cover
52 Capacitor fixing piece 82 Fiber optic port fixing feet
The realization of the purpose, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings.
本发明的实施方式Embodiments of the invention
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.
需要说明，本申请实施例中所有方向性指示（诸如上、下、左、右、前、后……）仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of this application are only used to explain the relationship between components in a specific posture (as shown in the drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.
在本申请中，除非另有明确的规定和限定，术语“连接”、“固定”等应做广义理解，例如，“固定”可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。In this application, unless otherwise clearly stated and limited, the terms "connection", "fixing", etc. should be understood in a broad sense. For example, "fixing" can be a fixed connection, a detachable connection, or an integral body; it can It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
另外，在本申请中如涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。In addition, descriptions such as "first", "second", etc. in this application are for descriptive purposes only and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions in various embodiments can be combined with each other, but it must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that such a combination of technical solutions does not exist. , nor is it within the scope of protection required by this application.
本申请提出一种功率单元100。This application proposes a power unit 100.
请参照图1至图3，在发明功率单元100的一些实施例中，所述功率单元100包括：Please refer to Figures 1 to 3. In some embodiments of the power unit 100 of the invention, the power unit 100 includes:
控制板10；control panel 10;
功率板20，所述功率板20与所述控制板10连接；Power board 20, the power board 20 is connected to the control board 10;
单元框架50，所述单元框架50的外壁向内凹进设置，以形成电容插设座51；Unit frame 50, the outer wall of the unit frame 50 is recessed inward to form a capacitor insertion socket 51;
母线电容30，所述母线电容30部分插设于所述电容插设座51内，并与所述功率板20电连接；以及Bus capacitor 30, the bus capacitor 30 is partially inserted into the capacitor socket 51 and is electrically connected to the power board 20; and
功率器件40，所述功率器件40固定于所述功率板20。Power device 40 is fixed to the power board 20 .
本实施例中，功率单元100包括控制板10、功率板20、母线电容30以及功率器件40，其中，功率板20和控制板10连接；母线电容30通过母线铜排31和功率板20电连接，母线电容30可以是但不限于设置为薄膜电容；功率器件40固定于功率板20上。进一步地，功率单元100还包括单元框架50，单元框架50的外壁向内凹进，以形成电容插设座51，母线电容30部分插设于电容插设座51内，并与功率板20电连接；如此设置，能够使母线电容30与功率板20连接的部分深入并密封于功率单元100的内部，有利于母线电容30的正常运行，还能够使母线电容30的其余部分暴露于外界风道中，以便于对母线电容30进行散热。In this embodiment, the power unit 100 includes a control board 10, a power board 20, a bus capacitor 30 and a power device 40. The power board 20 is connected to the control board 10; the bus capacitor 30 is electrically connected to the power board 20 through a bus copper bar 31. , the bus capacitor 30 may be, but is not limited to, a film capacitor; the power device 40 is fixed on the power board 20 . Further, the power unit 100 also includes a unit frame 50. The outer wall of the unit frame 50 is recessed inward to form a capacitor socket 51. The bus capacitor 30 is partially inserted in the capacitor socket 51 and electrically connected with the power board 20. connection; such an arrangement can make the part connecting the bus capacitor 30 and the power board 20 deep and sealed inside the power unit 100, which is beneficial to the normal operation of the bus capacitor 30, and can also expose the remaining parts of the bus capacitor 30 to the external air duct. , in order to dissipate heat to the bus capacitor 30.
需要说明的是，常见的级联型高压变频器功率单元100，通常采用独立封装的整流桥、IGBT等功率器件40来实现功率单元100整流、逆变的功能，并通过铜铝排或线缆连接各个器件，便会导致级联型高压变频器功率单元100存在杂感大、体积占用多、功率密度不高的问题，并且功率单元100的装配工时较长。It should be noted that the common cascade-type high-voltage inverter power unit 100 usually uses independently packaged rectifier bridges, IGBTs and other power devices 40 to realize the rectification and inverter functions of the power unit 100, and through copper-aluminum rows or cables Connecting various devices will cause the cascade-type high-voltage inverter power unit 100 to have problems such as large noise, large volume occupation, low power density, and the assembly time of the power unit 100 is long.
因此，可以理解的是，本申请的技术方案，通过设置使整流模块和逆变模块集成在一个封装内的一体化功率器件40，并使该一体化功率器件40共用一块功率板20和控制板10，便无须再使用连接铜铝排或线缆连接整流模块和逆变模块等功率器件，一方面能够有效减少杂散电感，另一方面可以一定程度上减少功率单元100的装配成本，并能够使功率单元100的结构更加紧凑，从而减少了功率单元100的占用体积、提高了功率单元100的功率密度。Therefore, it can be understood that the technical solution of the present application is to provide an integrated power device 40 that integrates the rectifier module and the inverter module in one package, and the integrated power device 40 shares a power board 20 and a control board. 10. There is no need to use connecting copper and aluminum bars or cables to connect power devices such as rectifier modules and inverter modules. On the one hand, it can effectively reduce stray inductance, on the other hand, it can reduce the assembly cost of the power unit 100 to a certain extent, and can The structure of the power unit 100 is made more compact, thereby reducing the occupied volume of the power unit 100 and increasing the power density of the power unit 100 .
请参照图2，在发明功率单元100的一些实施例中，所述控制板10和所述功率板20设置在所述单元框架50中；Please refer to Figure 2. In some embodiments of the inventive power unit 100, the control board 10 and the power board 20 are provided in the unit frame 50;
所述功率器件40设有若干，若干所述功率器件40并排设置于所述功率板20的一侧表面。There are several power devices 40 arranged side by side on one side surface of the power board 20 .
本实施例中，控制板10和功率板20设于单元框架50中，单元框架50能够对内部的功率板20和控制板10起到防护作用，以避免外界灰尘或其他异物进入单元框架50内，干扰功率板20和控制板10的正常运行；功能器件设有若干，若干功率器件40并排设置于功率板20的一侧表面，其中，每一功率器件40内均封装有整流模块和逆变模块；如此设置，由于无须使用连接铜铝排或线缆连接整流模块和逆变模块等功率器件，因此有利于使功率单元100的结构更加紧凑，从而能够提高功率单元100的功率密度。In this embodiment, the control board 10 and the power board 20 are disposed in the unit frame 50 . The unit frame 50 can protect the internal power board 20 and the control board 10 to prevent external dust or other foreign matter from entering the unit frame 50 , interfering with the normal operation of the power board 20 and the control board 10; there are several functional devices, and several power devices 40 are arranged side by side on one side surface of the power board 20, wherein each power device 40 is packaged with a rectifier module and an inverter. Module; With this arrangement, since there is no need to use copper-aluminum bars or cables to connect power devices such as rectifier modules and inverter modules, it is beneficial to make the structure of the power unit 100 more compact, thereby increasing the power density of the power unit 100.
在一些实施例中，功率单元100设有两个功率器件40，每一功率器件40背离功率板20的一侧设有一个散热器，以便于对功率单元100起到更好的散热效果；当然，本申请的技术方案不限于此，散热器也可以依据实际需要设置为一个，该散热器设于两功率器件40之间，以便于两功率器件40共用一散热器进行散热，如此设置，能够进一步减小功率单元100的整体体积。具体实施方式可以依照实际需求自行设置，在此不做限定。In some embodiments, the power unit 100 is provided with two power devices 40 , and each power device 40 is provided with a heat sink on a side away from the power board 20 to achieve better heat dissipation effect on the power unit 100 ; of course , the technical solution of the present application is not limited to this, and one radiator can also be provided according to actual needs. The radiator is provided between the two power devices 40 so that the two power devices 40 share a radiator for heat dissipation. Such an arrangement can The overall volume of the power unit 100 is further reduced. The specific implementation can be set according to actual needs and is not limited here.
请参照图4，在发明功率单元100的一些实施例中，所述母线电容30朝向所述电容插设座51的一端形成有接线端子，所述电容插设座51的底部对应形成有定位卡孔511，所述接线端子穿设于所述定位卡孔511，以连接所述母线铜排31的远离所述功率板20的一端。Please refer to Figure 4. In some embodiments of the power unit 100 of the invention, a terminal is formed on one end of the bus capacitor 30 facing the capacitor socket 51, and a positioning card is formed on the bottom of the capacitor socket 51. The wiring terminal is inserted through the positioning hole 511 to connect the end of the bus copper bar 31 away from the power board 20 .
本实施例中，母线电容30朝向电容插设座51的一端形成有接线端子，电容插设座51的底部对应开设有定位卡孔511，接线端子能够穿设于定位卡孔511，以与母线铜排31的远离所述功率板20的一端相连接，从而实现使母线电容30和功率板20电连接；如此设置，有利于在装配时对母线电容30进行快速定位，提高了母线电容30的装配便捷度，并且，定位卡孔511还能够对接线端子起到限位作用，以使母线电容30不会因受到外界冲击而发生偏位或滑动，从而，提高了母线电容30的结构稳定性。In this embodiment, a connection terminal is formed on one end of the bus capacitor 30 facing the capacitor insertion socket 51. A corresponding positioning hole 511 is provided at the bottom of the capacitor insertion socket 51. The connection terminal can be inserted through the positioning hole 511 to connect with the busbar. One end of the copper bar 31 away from the power board 20 is connected to achieve electrical connection between the bus capacitor 30 and the power board 20; such an arrangement is conducive to rapid positioning of the bus capacitor 30 during assembly and improves the efficiency of the bus capacitor 30. The assembly is convenient, and the positioning hole 511 can also limit the terminals, so that the bus capacitor 30 will not be deflected or slid due to external impact, thereby improving the structural stability of the bus capacitor 30 .
请参照图5，在发明功率单元100的一些实施例中，所述功率单元100还包括电容固定件52，所述电容固定件52罩设在所述母线电容30的外侧，并与所述单元框架50固定连接；Please refer to Figure 5. In some embodiments of the power unit 100 of the invention, the power unit 100 further includes a capacitor fixing part 52. The capacitor fixing part 52 is covered outside the bus capacitor 30 and connected with the unit. The frame 50 is fixedly connected;
所述电容固定件52朝向所述母线电容30的顶壁设有固定爪521，所述固定爪521弹性抵接于所述母线电容30的顶壁，以压紧固定所述母线电容30。The capacitor fixing member 52 is provided with a fixing claw 521 toward the top wall of the bus capacitor 30 . The fixing claw 521 elastically contacts the top wall of the bus capacitor 30 to compress and fix the bus capacitor 30 .
本实施例中，功率单元100还包括电容固定件52，电容固定件52罩设在母线电容30的外侧，并与单元框架50固定连接，通过电容固定件52和电容插设座51的配合作用，能够将母线电容30更好地固定在单元框架50上。具体地，电容固定件52朝向母线电容30的顶壁设有固定爪521，且固定爪521设置为弹性件，当电容固定件52罩设在母线电容30的外侧，并与单元框架50固定连接时，固定爪521能够弹性抵接在母线电容30的顶壁上，此时固定爪521发生弹性变形并因此具有弹性势能，固定爪521便能够向母线电容30的顶壁施加一个压紧力，从而，能够将母线电容30压紧固定在单元框架50上。In this embodiment, the power unit 100 also includes a capacitor fixing part 52. The capacitor fixing part 52 is covered outside the bus capacitor 30 and is fixedly connected to the unit frame 50. Through the cooperation of the capacitor fixing part 52 and the capacitor socket 51 , the bus capacitor 30 can be better fixed on the unit frame 50 . Specifically, the capacitor fixing part 52 is provided with a fixing claw 521 on the top wall facing the bus capacitor 30, and the fixing claw 521 is set as an elastic member. When the capacitor fixing part 52 is covered on the outside of the bus capacitor 30, and is fixedly connected to the unit frame 50 When , the fixed claw 521 can elastically contact the top wall of the bus capacitor 30. At this time, the fixed claw 521 elastically deforms and therefore has elastic potential energy. The fixed claw 521 can apply a pressing force to the top wall of the bus capacitor 30. Therefore, the bus capacitor 30 can be pressed and fixed on the unit frame 50 .
需要说明的是，由于不同电容固定件52的材料的弹性系数不同，因此发生弹性形变时向母线电容30的顶壁施加的压紧力大小也不同，便可通过将电容固定件52设置为不同的弹性材料，来调节电容固定件52所施加的压紧力的大小；当然，也可以是通过调整固定爪521的数量和尺寸来调节压紧力的大小，具体实施方式可以依照实际需求自行设置，在此不做限定。It should be noted that since the elastic coefficients of materials of different capacitor fixing parts 52 are different, the compressive force applied to the top wall of the bus capacitor 30 when elastic deformation occurs is also different, so the capacitor fixing parts 52 can be set to different sizes. elastic material to adjust the size of the pressing force exerted by the capacitor fixing member 52; of course, the size of the pressing force can also be adjusted by adjusting the number and size of the fixing claws 521, and the specific implementation can be set according to actual needs. , no limitation is made here.
请参照图6或图7，在发明功率单元100的一些实施例中，所述单元框架50开设有连通外界的铜排过孔53，所述功率单元100还包括穿墙铜排60，所述穿墙铜排60穿设于所述铜排过孔53，并向所述单元框架50中延伸，用于与所述功率板20或所述控制板10电连接；Please refer to Figure 6 or Figure 7. In some embodiments of the power unit 100 of the invention, the unit frame 50 is provided with a copper bar via hole 53 that connects to the outside world. The power unit 100 also includes a wall-through copper bar 60. The wall-through copper bar 60 is passed through the copper bar through hole 53 and extends into the unit frame 50 for electrical connection with the power board 20 or the control board 10;
所述穿墙铜排60和所述铜排过孔53的孔壁之间设置密封件61。A sealing member 61 is provided between the wall-through copper bar 60 and the hole wall of the copper bar via hole 53 .
本实施例中，单元框架50上开设有连通外界的铜排过孔53，功率单元100还包括穿墙铜排60，穿墙铜排60穿设于铜排过孔53，并向单元框架50中延伸，用于与单元框架50内的控制板10或功率板20电连接，且穿墙铜排60与铜排过孔53的孔壁之间设置有密封件61，其中，密封件61可以设置为密封胶等，密封胶具有流动性，不仅能够较好地填充穿墙铜排60和铜排过孔53的孔壁之间的间隙，还可以提高穿墙铜排60和铜排过孔53之间的连接强度；密封件61也可以是由弹性材料制成，能够受压形变以密封穿墙铜排60和铜排过孔53的孔壁之间的间隙，相对于将密封件61设置为密封胶，由弹性材料制成的密封件61在提高功率单元100的密封性能的同时，还能够使功率单元100具备较好的可装配性和可维护性；具体实施方式可以依照实际需求自行设置，在此不做限定。In this embodiment, the unit frame 50 is provided with a copper bar via hole 53 that connects to the outside world. The power unit 100 also includes a wall-through copper bar 60 . The wall-through copper bar 60 is passed through the copper bar via hole 53 and extends toward the unit frame 50 Extending in the middle, it is used to electrically connect with the control board 10 or power board 20 in the unit frame 50, and a seal 61 is provided between the wall copper bar 60 and the hole wall of the copper bar through hole 53, where the seal 61 can It is set as a sealant, etc. The sealant has fluidity and can not only better fill the gap between the wall of the wall copper bar 60 and the copper bar via hole 53, but also improve the performance of the wall copper bar 60 and the copper bar via hole. 53; the sealing member 61 can also be made of elastic material, which can be deformed under pressure to seal the gap between the wall-through copper bar 60 and the hole wall of the copper bar through hole 53, relative to the sealing member 61 The seal 61 made of elastic material, configured as a sealant, can not only improve the sealing performance of the power unit 100, but also enable the power unit 100 to have better assembly and maintainability; the specific implementation can be based on actual needs. Set by yourself, no restrictions here.
需要说明的是，功率单元100通常设置在高压变频器的整机风道内，因此有必要提高功率单元100的密封性能，以免灰尘及腐蚀性气体直接进入功率单元100内部而导致功率单元100不能正常运行；而在实际生产中，出于对加工和装配误差的考虑，设计时通常会使铜排过孔53的截面尺寸略大于穿墙铜排60的截面尺寸，以致于功率单元100上存在装配间隙，便会存在外界灰尘或其他异物进入功率单元100内的风险。因此，可以理解的是，本申请的技术方案，通过在穿墙铜排60和铜排过孔53的孔壁之间设置密封件61，可以提高单元框架50的密封性能，从而提高了功率单元100的安全性和可靠性。It should be noted that the power unit 100 is usually installed in the air duct of the high-voltage inverter. Therefore, it is necessary to improve the sealing performance of the power unit 100 to prevent dust and corrosive gases from directly entering the power unit 100 and causing the power unit 100 to malfunction. operation; in actual production, due to processing and assembly errors, the cross-sectional size of the copper bar via hole 53 is usually slightly larger than the cross-sectional size of the through-wall copper bar 60 during design, so that there are assembly problems on the power unit 100 If there is a gap, there will be a risk of external dust or other foreign matter entering the power unit 100 . Therefore, it can be understood that the technical solution of the present application can improve the sealing performance of the unit frame 50 by arranging the seal 61 between the wall copper bar 60 and the hole wall of the copper bar via hole 53, thereby improving the power unit. 100% safe and reliable.
在一些实施例中，密封件61可以是但不限于设置为密封圈，密封圈的材质可以是但不限于橡胶材质，穿墙铜排60上开设有沿铜排过孔53的周向环绕设置的密封槽，密封圈设于密封槽内，并能够部分凸出密封槽设置；如此设置，密封槽能够对密封圈起到限位作用，能够提高密封件61的位置稳定性，并且，密封圈还能够因挤压变形而紧贴穿墙铜排60和铜排过孔53的孔壁设置，由此即可保证密封件61的密封效果。In some embodiments, the sealing member 61 may be, but is not limited to, a sealing ring. The material of the sealing ring may be, but is not limited to, rubber material. The wall-through copper bar 60 is provided with a circumferential circumference of the copper bar via hole 53 . The sealing groove is arranged in the sealing groove, and the sealing ring can partially protrude from the sealing groove; with such arrangement, the sealing groove can play a limiting role for the sealing ring, which can improve the positional stability of the sealing member 61, and the sealing ring It can also be placed close to the wall of the wall-through copper bar 60 and the copper bar via hole 53 due to extrusion deformation, thereby ensuring the sealing effect of the sealing member 61 .
在发明功率单元100的一些实施例中，所述铜排过孔53的横截面自外界向所述单元框架50的内部空间逐渐减小。In some embodiments of the power unit 100 of the invention, the cross-section of the copper row via hole 53 gradually decreases from the outside toward the internal space of the unit frame 50 .
本实施例中，铜排过孔53的横截面自外界向单元框架50的内部空间逐渐减小，由于铜排过孔53朝向外界的一端的横截面积较大，因此有利于穿墙铜排60的穿设和密封件61的卡入；由于铜排过孔53远离外界的一端的横截面积较小，因此有利于铜排过孔53的孔壁压紧固定密封件61，从而便可提高穿墙铜排60和铜排过孔53之间的连接强度和密封性能。In this embodiment, the cross-section of the copper bar via hole 53 gradually decreases from the outside to the internal space of the unit frame 50. Since the cross-sectional area of the end of the copper bar via hole 53 facing the outside is larger, it is advantageous for the copper bar to pass through the wall. 60 is inserted and the seal 61 is inserted; since the cross-sectional area of the end of the copper row via hole 53 away from the outside world is smaller, it is beneficial for the hole wall of the copper row via hole 53 to press and fix the seal 61, so that the seal 61 can be fixed. The connection strength and sealing performance between the wall-through copper bar 60 and the copper bar via hole 53 are improved.
请参照图8或图9，在发明功率单元100的一些实施例中，所述单元框架50设有烧录口，所述烧录口处设有烧录口密封件70，所述烧录口密封件70包括：Please refer to Figure 8 or Figure 9. In some embodiments of the power unit 100 of the invention, the unit frame 50 is provided with a burning port, and a burning port seal 70 is provided at the burning port. The burning port Seal 70 includes:
烧录口盖板71，所述烧录口盖板71盖设于所述烧录口，并能够与所述烧录口过盈配合；和The burning port cover 71 is provided to cover the burning port and can interfere with the burning port; and
烧录口固定脚72，所述烧录口固定脚72的一端固定连接所述烧录口盖板71，另一端与所述单元框架50卡扣连接，所述烧录口固定脚72可弯折设置，以带动所述烧录口盖板71开启或密封所述烧录口。Burning port fixing feet 72. One end of the burning port fixing feet 72 is fixedly connected to the burning port cover 71, and the other end is snap-connected to the unit frame 50. The burning port fixing feet 72 are bendable. It is folded to drive the burning port cover 71 to open or seal the burning port.
本实施例中，单元框架50设有烧录口，烧录口处盖设有烧录口密封件70，且烧录口密封件70可开合设置，用于开启以便于功率单元100间进行烧录操作，或是闭合烧录口以降低外界灰尘或其他异物进入烧录口的风险。In this embodiment, the unit frame 50 is provided with a burning port. The burning port is covered with a burning port seal 70 , and the burning port seal 70 can be opened and closed to facilitate the operation between the power units 100 . During the burning operation, or close the burning port to reduce the risk of external dust or other foreign matter entering the burning port.
具体地，烧录口密封件70包括烧录口盖板71和烧录口固定脚72，其材质可以是但不限于具有弹性的材料，例如硅胶材料。当烧录口盖板71盖设于烧录口时，烧录口盖板71能够与烧录口发生过盈配合，有利于烧录卡盖板更好地密封烧录口；烧录口固定脚72的一端固定连接所述烧录口盖板71，另一端通过拉拔结构与所述单元框架50卡扣连接，且烧录口固定脚72可弯折设置，当烧录口密封件70关闭时，烧录口固定脚72弯折以使烧录口盖板71能够盖设烧录卡，当烧录口密封件70开启时，烧录口固定脚72能够释放弹性势能并带动烧录口盖板71向烧录口的侧方回弹，用于开启烧录口，以使功率单元100间能够进行烧录操作。Specifically, the burning port seal 70 includes a burning port cover 71 and a burning port fixing foot 72, and its material may be but is not limited to an elastic material, such as silicone material. When the burning port cover 71 is installed on the burning port, the burning port cover 71 can have an interference fit with the burning port, which is beneficial to the burning card cover to better seal the burning port; the burning port is fixed One end of the foot 72 is fixedly connected to the burning port cover 71 , and the other end is snap-connected to the unit frame 50 through a pull-out structure, and the burning port fixing foot 72 can be bent. When the burning port seal 70 When closed, the burning port fixing leg 72 is bent so that the burning port cover 71 can cover the burning card. When the burning port seal 70 is opened, the burning port fixing leg 72 can release elastic potential energy and drive burning. The port cover 71 rebounds toward the side of the burning port to open the burning port so that the power unit 100 can perform programming operations.
可以理解的是，通过设置烧录口密封件70，能够提高功率单元100于烧录口处的密封性；通过使烧录口密封件70的烧录口固定脚72与单元框架50固定连接，能够降低烧录口密封件70遗失的风险，从而提高功率单元100的便捷使用性。It can be understood that by providing the burning port seal 70, the sealing performance of the power unit 100 at the burning port can be improved; by fixing the burning port fixing feet 72 of the burning port seal 70 with the unit frame 50, The risk of losing the burning port seal 70 can be reduced, thereby improving the convenience of use of the power unit 100.
请参照图8或图10，在发明功率单元100的一些实施例中，所述单元框架50设有光纤口，所述光纤口处设有包括光纤口密封件80，所述光纤口密封件80包括：Please refer to Figure 8 or Figure 10. In some embodiments of the inventive power unit 100, the unit frame 50 is provided with an optical fiber port, and the optical fiber port is provided with an optical fiber port seal 80. The optical fiber port seal 80 include:
光纤口盖板81，所述光纤口盖板81盖设于所述光纤口，所述光纤口盖板81开设有光纤头过孔，用于插接所述光纤头，且所述光纤头过孔能够和所述光纤头过盈配合；和Optical fiber port cover 81. The optical fiber port cover 81 covers the optical fiber port. The optical fiber port cover 81 is provided with an optical fiber head through hole for plugging in the optical fiber head, and the optical fiber head passes through The hole is capable of an interference fit with the optical fiber head; and
光纤口固定脚82，所述光纤口固定脚82设于所述光纤口盖板81朝向所述光纤口的一侧，所述光纤口固定脚82与所述单元框架50卡扣连接。The fiber port fixing foot 82 is provided on the side of the fiber port cover 81 facing the fiber port. The fiber port fixing foot 82 is snap-connected to the unit frame 50 .
本实施例中，单元框架50设有光迁口，光迁口处盖设有光迁口密封件61，光光迁密封件61上设置有光迁头过孔，且光纤头过孔的内径略小于光纤头的外径，便能够和长时间插设在光迁口处的光纤头过盈配合，以提高功率单元100于光迁口处的密封性。In this embodiment, the unit frame 50 is provided with an optical port, and the optical port is covered with an optical port seal 61. The optical port seal 61 is provided with an optical head via hole, and the inner diameter of the optical fiber head via hole is Slightly smaller than the outer diameter of the optical fiber head, it can interfere with the optical fiber head inserted at the optical port for a long time, so as to improve the sealing performance of the power unit 100 at the optical port.
具体地，光纤口密封件80包括光纤盖板和光纤固定脚，其材质可以是但不限于具有弹性的材料，例如硅胶材料。其中，光纤口盖板81盖设于光纤口处，光纤口盖板81上开设有光纤头过孔，用于插接所述光纤头，并与光纤头过盈配合，以使光纤口密封件80具有更好的密封效果，进一步地，光纤口盖板81围绕光纤头过孔处设置为薄壁结构，如此设置，能够降低光纤头插拔时光纤口盖板81及光驱口固定脚受到的向外的拉力，从而能够一定程度上提高光纤口密封件80的连接稳定性，并有利于光纤头的拆装；光纤口固定脚82设于光纤口盖板81朝向光纤口的一侧，光纤口固定脚82通过拉拔结构与单元框架50卡扣连接，进一步地，光纤口固定脚82可以设置有多个，多个光纤口固定脚82沿光纤口盖板81的周向环绕设置，由此即可进一步提高光纤口密封件80与单元框架50的连接强度。Specifically, the optical fiber port seal 80 includes an optical fiber cover plate and an optical fiber fixing pin, and its material may be but is not limited to an elastic material, such as silicone material. Among them, the optical fiber port cover 81 covers the optical fiber port. The optical fiber port cover 81 is provided with a fiber head through hole for plugging in the fiber head and interference fit with the fiber head to make the fiber port seal. 80 has a better sealing effect. Furthermore, the optical fiber port cover 81 is set as a thin-walled structure around the optical fiber head through hole. This arrangement can reduce the impact on the optical fiber port cover 81 and the optical drive port fixing foot when the optical fiber head is plugged and unplugged. The outward pulling force can improve the connection stability of the fiber port seal 80 to a certain extent and facilitate the disassembly and assembly of the fiber head; the fiber port fixing foot 82 is located on the side of the fiber port cover 81 facing the fiber port. The port fixing pins 82 are snap-connected to the unit frame 50 through a pull-out structure. Furthermore, multiple fiber port fixing pins 82 can be provided, and the multiple fiber port fixing pins 82 are arranged around the circumference of the fiber port cover 81, as shown in This can further improve the connection strength between the optical fiber port seal 80 and the unit frame 50 .
本申请还提出一种功率单元100，所述功率单元100包括：This application also proposes a power unit 100, which includes:
一控制板10；a control panel 10;
一功率板20，所述功率板20通过对插端子与所述控制板连接；A power board 20, the power board 20 is connected to the control board through plug-in terminals;
母线电容30，所述母线电容30通过母线铜排31与所述功率板20电连接；以及Bus capacitor 30, the bus capacitor 30 is electrically connected to the power board 20 through the bus copper bar 31; and
功率器件40，所述功率器件40内封装有整流模块和逆变模块，所述功率器件40焊接于所述功率板20，所述功率器件40设有若干，若干所述功率器件40并排设置于所述功率板20的一侧表面。Power device 40. A rectifier module and an inverter module are packaged in the power device 40. The power device 40 is welded to the power board 20. There are several power devices 40. Several of the power devices 40 are arranged side by side. One side surface of the power board 20 .
本实施例中，功率单元100包括控制板10、功率板20、母线电容30以及功率器件40，其中，功率板20通过对插端子与控制板10连接；母线电容30可以是但不限于设置为薄膜电容，母线电容30通过母线铜排31与功率板20电连接；功率器件40设有若干，若干所述功率器件40并排设置于所述功率板20的一侧表面，并焊接于功率板20上，且每一所述功率器件40内均封装有整流模块和逆变模块；如此设置，能够实现功率单元100的无线缆化设计，由此可以提高功率单元100的装配便捷度，以便于功率单元100进行自动化装配，从而能够提高功率单元100的装配效率。In this embodiment, the power unit 100 includes a control board 10, a power board 20, a bus capacitor 30 and a power device 40. The power board 20 is connected to the control board 10 through plug-in terminals; the bus capacitor 30 may be, but is not limited to, set to The film capacitor and bus capacitor 30 are electrically connected to the power board 20 through the bus copper bar 31; there are several power devices 40, and several of the power devices 40 are arranged side by side on one side surface of the power board 20 and welded to the power board 20 above, and each of the power devices 40 is packaged with a rectifier module and an inverter module; with such an arrangement, a cableless design of the power unit 100 can be achieved, thereby improving the ease of assembly of the power unit 100 so as to facilitate The power unit 100 is automatically assembled, thereby improving the assembly efficiency of the power unit 100 .
本申请还提出一种高压变频器，该高压变频器包括前述任一实施例中所述的功率单元100，所述功率单元100的具体结构参照前述任一实施例。由于本申请提出的高压变频器可应用前述所有实施例中的全部技术方案，因此至少具有前述技术方案带来的全部有益效果，在此不一一赘述。This application also proposes a high-voltage frequency converter. The high-voltage frequency converter includes the power unit 100 described in any of the foregoing embodiments. For the specific structure of the power unit 100, refer to any of the foregoing embodiments. Since the high-voltage frequency converter proposed in this application can apply all the technical solutions in all the foregoing embodiments, it has at least all the beneficial effects brought by the foregoing technical solutions, which will not be described again here.
以上所述仅为本申请的优选实施例，并非因此限制本申请的专利范围，凡是在本申请的发明构思下，利用本申请说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。The above are only preferred embodiments of the present application, and do not limit the patent scope of the present application. Under the inventive concept of the present application, equivalent structural transformations made by using the contents of the description and drawings of the present application, or direct/indirect application Other related technical fields are included in the patent protection scope of this application.

Claims (10)

  1. 一种功率单元，其中，所述功率单元包括：A power unit, wherein the power unit includes:
    控制板；control panel;
    功率板，所述功率板与所述控制板连接；A power board, the power board is connected to the control board;
    单元框架，所述单元框架的外壁向内凹进设置，以形成电容插设座；Unit frame, the outer wall of the unit frame is recessed inward to form a capacitor socket;
    母线电容，所述母线电容部分插设于所述电容插设座内，并与所述功率板电连接；以及A bus capacitor, the bus capacitor is partially inserted into the capacitor socket and electrically connected to the power board; and
    功率器件，所述功率器件固定于所述功率板。A power device is fixed on the power board.
  2. 如权利要求1所述的功率单元，其中，所述控制板和所述功率板设置在所述单元框架中；The power unit of claim 1, wherein the control board and the power board are disposed in the unit frame;
    所述功率器件设有若干，若干所述功率器件并排设置于所述功率板的一侧表面。There are several power devices, and several power devices are arranged side by side on one side surface of the power board.
  3. 如权利要求2所述的功率单元，其中，所述母线电容朝向所述电容插设座的一端形成有接线端子，所述电容插设座的底部对应形成有定位卡孔，所述接线端子穿设于所述定位卡孔，以连接所述母线铜排的远离所述功率板的一端。The power unit of claim 2, wherein a connection terminal is formed on one end of the bus capacitor toward the capacitor insertion socket, and a positioning hole is formed on the bottom of the capacitor insertion socket, and the connection terminal passes through It is provided in the positioning hole to connect the end of the busbar copper bar away from the power board.
  4. 如权利要求3所述的功率单元，其中，所述功率单元还包括电容固定件，所述电容固定件罩设在所述母线电容的外侧，并与所述单元框架固定连接；The power unit according to claim 3, wherein the power unit further includes a capacitor fixing member, the capacitor fixing member is covered outside the bus capacitor and is fixedly connected to the unit frame;
    所述电容固定件朝向所述母线电容的顶壁设有固定爪，所述固定爪弹性抵接于所述母线电容的顶壁，以压紧固定所述母线电容。The capacitor fixing member is provided with a fixing claw facing the top wall of the bus capacitor. The fixing claw elastically abuts the top wall of the bus capacitor to compress and fix the bus capacitor.
  5. 如权利要求1所述的功率单元，其中，所述单元框架开设有连通外界的铜排过孔，所述功率单元还包括穿墙铜排，所述穿墙铜排穿设于所述铜排过孔，并向所述单元框架中延伸，用于与所述功率板或所述控制板电连接；The power unit according to claim 1, wherein the unit frame is provided with copper bar via holes that connect to the outside world, and the power unit further includes a wall-through copper bar, and the wall-through copper bar is passed through the copper bar. Via holes extend into the unit frame for electrical connection with the power board or the control board;
    所述穿墙铜排和所述铜排过孔的孔壁之间设置密封件。A sealing member is provided between the wall-through copper bar and the hole wall of the copper bar via hole.
  6. 如权利要求5所述的功率单元，其中，所述铜排过孔的横截面自外界向所述单元框架的内部空间逐渐减小。The power unit of claim 5, wherein the cross-section of the copper row via hole gradually decreases from the outside toward the internal space of the unit frame.
  7. 如权利要求1所述的功率单元，其中，所述单元框架设有烧录口，所述烧录口处设有烧录口密封件，所述烧录口密封件包括：The power unit of claim 1, wherein the unit frame is provided with a burning port, and a burning port seal is provided at the burning port, and the burning port seal includes:
    烧录口盖板，所述烧录口盖板盖设于所述烧录口，并能够与所述烧录口过盈配合；和A burning port cover, the burning port cover is disposed on the burning port and can be an interference fit with the burning port; and
    烧录口固定脚，所述烧录口固定脚的一端固定连接所述烧录口盖板，另一端与所述单元框架卡扣连接，所述烧录口固定脚可弯折设置，以带动所述烧录口盖板开启或密封所述烧录口。Burning port fixing feet. One end of the burning port fixing feet is fixedly connected to the burning port cover, and the other end is snap-connected to the unit frame. The burning port fixing feet can be bent to drive the The burning port cover opens or seals the burning port.
  8. 如权利要求1所述的功率单元，其中，所述单元框架设有光纤口，所述光纤口处设有包括光纤口密封件，所述光纤口密封件包括：The power unit according to claim 1, wherein the unit frame is provided with an optical fiber port, and the optical fiber port is provided with an optical fiber port sealing member, and the optical fiber port sealing member includes:
    光纤口盖板，所述光纤口盖板盖设于所述光纤口，所述光纤口盖板开设有光纤头过孔，用于插接所述光纤头，且所述光纤头过孔能够和所述光纤头过盈配合；和Optical fiber port cover, the optical fiber port cover is installed on the optical fiber port, the optical fiber port cover is provided with an optical fiber head through hole for plugging in the optical fiber head, and the optical fiber head through hole can be connected to the optical fiber port. The optical fiber head has an interference fit; and
    光纤口固定脚，所述光纤口固定脚设于所述光纤口盖板朝向所述光纤口的一侧，所述光纤口固定脚与所述单元框架卡扣连接。The optical fiber port fixing foot is provided on the side of the optical fiber port cover facing the optical fiber port, and the optical fiber port fixing foot is snap-connected to the unit frame.
  9. 一种功率单元，其中，所述功率单元包括：A power unit, wherein the power unit includes:
    一控制板；a control panel;
    一功率板，所述功率板通过对插端子与所述控制板连接；A power board, the power board is connected to the control board through plug-in terminals;
    母线电容，所述母线电容通过母线铜排与所述功率板电连接；以及A bus capacitor, which is electrically connected to the power board through a bus copper bar; and
    功率器件，所述功率器件内封装有整流模块和逆变模块，所述功率器件焊接于所述功率板，所述功率器件设有若干，若干所述功率器件并排设置于所述功率板的一侧表面。A power device. A rectifier module and an inverter module are packaged in the power device. The power device is welded to the power board. There are several power devices. Several of the power devices are arranged side by side on one side of the power board. side surface.
  10. 一种高压变频器，其中，包括如权利要求1至9任意一项所述的功率单元。A high-voltage frequency converter, which includes the power unit according to any one of claims 1 to 9.
PCT/CN2023/097233 2022-07-20 2023-05-30 Power unit and high-voltage frequency converter WO2024016849A1 (en)

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CN202210857400.9 2022-07-20
CN202210857400.9A CN115208168A (en) 2022-07-20 2022-07-20 Power unit and high-voltage frequency converter

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CN115208168A (en) * 2022-07-20 2022-10-18 苏州汇川控制技术有限公司 Power unit and high-voltage frequency converter

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JP2013007691A (en) * 2011-06-27 2013-01-10 Renesas Electronics Corp Capacity measuring circuit, semiconductor device and capacity measuring method
CN210608919U (en) * 2019-10-14 2020-05-22 阳光电源股份有限公司 Bidirectional DC-DC module power unit
CN214707494U (en) * 2021-03-16 2021-11-12 希望森兰科技股份有限公司 Power unit structure of high-voltage frequency converter
CN114390835A (en) * 2022-02-08 2022-04-22 徐州科亚机电有限公司 High-power controller mainboard
CN115208168A (en) * 2022-07-20 2022-10-18 苏州汇川控制技术有限公司 Power unit and high-voltage frequency converter

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Publication number Priority date Publication date Assignee Title
JP2013007691A (en) * 2011-06-27 2013-01-10 Renesas Electronics Corp Capacity measuring circuit, semiconductor device and capacity measuring method
CN210608919U (en) * 2019-10-14 2020-05-22 阳光电源股份有限公司 Bidirectional DC-DC module power unit
CN214707494U (en) * 2021-03-16 2021-11-12 希望森兰科技股份有限公司 Power unit structure of high-voltage frequency converter
CN114390835A (en) * 2022-02-08 2022-04-22 徐州科亚机电有限公司 High-power controller mainboard
CN115208168A (en) * 2022-07-20 2022-10-18 苏州汇川控制技术有限公司 Power unit and high-voltage frequency converter

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