WO2022199248A1 - 一种逆变器及具有其的集成平台 - Google Patents

一种逆变器及具有其的集成平台 Download PDF

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Publication number
WO2022199248A1
WO2022199248A1 PCT/CN2022/074191 CN2022074191W WO2022199248A1 WO 2022199248 A1 WO2022199248 A1 WO 2022199248A1 CN 2022074191 W CN2022074191 W CN 2022074191W WO 2022199248 A1 WO2022199248 A1 WO 2022199248A1
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WO
WIPO (PCT)
Prior art keywords
door panel
inverter
cabinet
door
heat exchanger
Prior art date
Application number
PCT/CN2022/074191
Other languages
English (en)
French (fr)
Inventor
王晓虎
朱其姚
张献伟
谭均
Original Assignee
阳光电源股份有限公司
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Filing date
Publication date
Application filed by 阳光电源股份有限公司 filed Critical 阳光电源股份有限公司
Priority to KR1020237032639A priority Critical patent/KR20230148358A/ko
Priority to EP22773910.9A priority patent/EP4287794A1/en
Publication of WO2022199248A1 publication Critical patent/WO2022199248A1/zh

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    • 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
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • 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
    • H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
    • H05K7/1427—Housings
    • H05K7/1432—Housings specially adapted for power drive units or power converters
    • 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
    • H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
    • H05K7/1427—Housings
    • H05K7/1432—Housings specially adapted for power drive units or power converters
    • H05K7/14339—Housings specially adapted for power drive units or power converters specially adapted for high voltage operation
    • 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
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20136—Forced ventilation, e.g. by fans
    • H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
    • 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
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers

Definitions

  • the present invention relates to the technical field of photovoltaic inverters, and in particular, to an inverter and an integrated platform having the same.
  • the problem solved by the present invention is: how to reduce the difficulty in the integrated design of the inverter for the inverter equipped with the heat exchanger.
  • the present invention provides an inverter, including a cabinet with a cabinet door, an inverter body disposed in the cabinet, and a heat exchanger disposed outside the cabinet, and the inverter
  • the body has an AC side
  • the cabinet door is located on the AC side or the back side of the AC side of the inverter body.
  • the cabinet door includes a first door panel and a second door panel suitable for being rotated to open or close, and the heat exchanger is arranged on the first door panel and/or the second door panel.
  • the first door panel and/or the second door panel is provided with an opening communicating with the inner space of the cabinet, and the heat exchanger is detachably arranged at the opening.
  • the first door panel or the second door panel has a special-shaped panel structure that is wide at the top and narrow at the bottom, and the vertical side of the narrow portion of the first door panel or the second door panel and the vertical side of the wide portion are side flush.
  • the cabinet door further includes an access door panel, the access door panel is located on the same plane as the first door panel and the second door panel, and the access door panel is located between the narrow part of the first door panel and the between the narrow parts of the second door panel.
  • the cabinet further has a vertical column structure, and the column structure is located inside the cabinet; when the first door panel and the second door panel are closed, the first door panel and the second door panel are closed.
  • the wide parts of the two door panels are detachably connected to the column structure.
  • the AC side of the inverter body is provided with a copper bar output interface, and the copper bar output interface is adapted to be connected to the copper bar input interface of the transformer through a connection structure.
  • the copper bar output interface is located between the narrow portion of the first door panel and the narrow portion of the second door panel, and is located below the access door panel.
  • an air duct structure is provided on the cabinet, and the heat exchanger is adapted to discharge the absorbed heat from the air duct structure to the outside of the cabinet.
  • the present invention also provides an integrated platform, comprising a box body, a transformer arranged in the box body, and any one of the inverters described above, wherein the inverter and the transformer are respectively located in the Both ends in the longitudinal direction of the box body, and the AC side of the inverter faces the transformer.
  • the present invention has the following beneficial effects: in the present invention, by arranging the heat exchanger on the AC side of the inverter body or the back side of the AC side, it can ensure that the entire inverter is fully integrated during the integrated design of the inverter.
  • the inverter can be located in the box, which reduces the difficulty and cost of the integrated design of the inverter; and, by arranging the heat exchanger on the first door panel and/or the second door panel that can be rotatably opened or closed, the heat exchanger can be When the heat exchanger is being inspected and maintained, the heat exchanger can be inspected only by rotating open the first door or the second door without removing the entire cabinet door.
  • the door panel or the second door panel can be closed, the operation is simple and convenient, and the maintenance efficiency is high.
  • FIG. 1 is a schematic three-dimensional structure diagram of an inverter in an embodiment of the present invention
  • FIG. 2 is a front view of an inverter in an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of the inverter after the cabinet door is removed in an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of an integrated platform in an embodiment of the present invention.
  • 1-heat exchanger 2-cabinet, 21-cabinet door, 211-first door panel, 212-second door panel, 213-access door panel, 22-column structure, 23-air duct structure, 231-upper air duct, 232- Downwind duct, 31-AC side, 311-copper output interface, 100-box, 200-transformer, 300-inverter, 400-connection structure.
  • the positive direction of the X-axis represents the left
  • the reverse of the X-axis represents the right
  • the positive direction of the Y-axis represents the rear
  • the reverse of the Y-axis represents the front
  • the reverse of the Z-axis represents the front.
  • the positive direction represents up
  • the reverse of the Z axis represents down.
  • the present invention provides an inverter 300 , which includes a cabinet 2 with a cabinet door 21 , an inverter body disposed in the cabinet 2 , and a heat exchanger 1 disposed outside the cabinet 2 , and the inverter
  • the inverter body has an AC side 31
  • the cabinet door 21 is located on the AC side 31 or the back side of the AC side 31 of the inverter body.
  • the AC side 31 of the inverter body is the rear side of the inverter 300 in FIG. 1
  • the back side of the AC side 31 is the front side of the inverter 300 in FIG. 1
  • the heat generated by the inverter 300 is also larger and larger
  • the volume of the heat exchanger 1 is also designed to be larger and larger, which increases the volume of the entire inverter 300. If it is arranged on the left or right side of the inverter 300, the width dimension of the inverter 300 in the left-right direction (ie, the X-axis direction) will be increased, which makes it possible to integrate the inverter 300 in the box body 100 of the integrated platform.
  • the AC side 31 of the inverter 300 needs to face the transformer 200 in the box 100 to facilitate the connection between the inverter 300 and the transformer 200 , so the heat exchanger 1 is arranged at the width of the inverter 300
  • the inverter 300 with the heat exchanger 1 is on both sides in the direction (ie, the left or the right)
  • the inverter 300 with the heat exchanger 1 is likely to exceed the internal dimension of the standard box 100 (ie, the width of the box 100 in the left-right direction), resulting in reversed operation.
  • the inverter 300 is difficult to integrate.
  • the heat exchanger 1 is arranged on the AC side 31 of the inverter body or the back side of the AC side 31 to ensure that the entire inverter 300 can be located in the box when the inverter 300 is integrated. In the body 100, the difficulty and cost of the integrated design of the inverter 300 are reduced.
  • the cabinet door 21 includes a first door panel 211 and a second door panel 212 suitable for being rotated to open or close, and the heat exchanger 1 is disposed on the first door panel 211 and/or the second door panel 212 .
  • the heat exchanger in the prior art is usually arranged on the inner cabinet door of the inverter cabinet and is located outside the cabinet door, and the cabinet door is a whole door panel structure, when the heat exchanger needs to be repaired, it is necessary to The entire cabinet door is disassembled, and the cabinet door together with the heat exchanger is installed on the inverter cabinet after the overhaul is completed. The entire operation process is cumbersome and inefficient. Therefore, in this embodiment, when the heat exchanger 1 is installed on the inverter 300, in order to change the original structure of the inverter 300 to a small extent, the heat exchanger 1 is usually installed in the cabinet of the inverter 300.
  • the cabinet door 21 on the side where the heat exchanger 1 is located is not a single door panel structure, but is composed of two door panels, that is, the cabinet door 21 includes a first door panel 211 and a second door panel 212.
  • a heat exchanger 1 can be installed on the first door panel 211 or the second door panel 212 to meet the heat dissipation requirements of the low-power inverter 300.
  • the volume of the heat exchanger 1 on the first door panel 211 or the second door panel 212 can be increased to improve the heat dissipation effect.
  • a heat exchanger 1 is installed to improve the heat dissipation effect; however, from the perspective of the overall volume of the inverter 300, this implementation is preferably used on the first door panel 211 and the second door panel 212 when the power of the inverter 300 is relatively large.
  • One heat exchanger 1 is installed on each of the above to improve the heat dissipation effect of the heat exchanger 1 so as to avoid increasing the overall size and volume of the inverter 300 .
  • the first door panel 211 and the second door panel 212 are adapted to be rotated to open or close, so that when the heat exchanger 1 is repaired and maintained, the first door panel 211 or the second door panel 212 only needs to be rotated and opened to exchange heat.
  • the appliance 1 can be repaired without disassembling the entire cabinet door 21, and after the inspection is completed, only the first door panel 211 or the second door panel 212 can be closed. The operation is simple and convenient, and the inspection efficiency is high.
  • the cabinet 2 further has a frame, the frame is composed of a plurality of longitudinal beams and beams, and the first door panel 211 and the second door panel 212 are adapted to be fixed on the beams or longitudinal beams of the frame through fasteners when closed.
  • the inverter 300 Since the inverter 300 is usually subjected to various vibration impacts during transportation or handling, when the first door panel 211 and the second door panel 212 are only closed under the action of friction, the first door panel 211 and/or Or the second door panel 212 is likely to be opened when subjected to vibration and impact, which causes the inverter body in the cabinet 2 to be exposed to the transportation environment, so that the inverter body is easily damaged by the impact of other objects. Therefore, in this embodiment, after the first door panel 211 and the second door panel 212 are closed, the first door panel 211 and the second door panel 212 also need to be fixed on the frame of the cabinet 2 by fasteners such as screws, so as to prevent reverse operation. The inverter 300 is damaged during transportation or handling, so as to ensure the reliability and safety of the inverter 300 during transportation or handling.
  • first door panel 211 and the second door panel 212 are arranged symmetrically from left to right.
  • the structure of the cabinet door 21 can be simplified, the types of door panels to be manufactured can be reduced, and the production efficiency can be improved.
  • the structure is enough.
  • the first door panel 211 and/or the second door panel 212 is provided with an opening communicating with the inner space of the cabinet 2, and the heat exchanger 1 is detachably arranged at the opening.
  • the heat exchanger 1 is detachably disposed on the first door panel 211 and/or the second door panel 212 , for example, first installation holes are provided around the openings on the first door panel 211 and/or the second door panel 212 , set a second mounting hole on the heat exchanger 1, by aligning the first mounting hole with the second mounting hole, and screwing fasteners such as screws into the first mounting hole and the second mounting hole to
  • the heat exchanger 1 is fixed on the first door panel 211 and/or the second door panel 212 to form a detachable connection; moreover, by providing an opening, the heat exchanger 1 is communicated with the inner space of the cabinet 2, and the heat exchanger 1 is enlarged at the same time.
  • the contact area with the hot air inside the cabinet 2 is convenient for the heat exchanger 1 to absorb the heat inside the cabinet 2 and discharge it to the outside of the cabinet 2 .
  • the first door panel 211 and/or the second door panel 212 has a special-shaped panel structure that is wide at the top and narrow at the bottom, and the vertical side of the narrow portion of the first door panel 211 or the second door panel 212 is the same as the width. The vertical sides of the parts are flush.
  • the first door panel 211 and/or the second door panel 212 is an inverted L-shaped panel structure with a wide upper part and a narrow lower part, and the first door panel 211 and/or the second door panel 212 has a wide part and a narrow part, wherein the width The vertical side of the narrow portion is the left or right side of the wide portion, and correspondingly, the vertical side of the narrow portion is the left or right side of the narrow portion.
  • the wide part of the first door panel 211 is located above the narrow part of the first door panel 211 , and the narrow part of the first door panel 211 is located at the lower left of the wide part of the first door panel 211 In this way, the inverted L-shaped plate structure of the first door panel 211 is formed, and the dimension of the wide part of the first door panel 211 in the left-right direction is larger than the dimension of the narrow part of the first door panel 211 in the left-right direction, and the wide part of the first door panel 211
  • the left side of the first door panel 211 is aligned with the left side of the narrow portion of the first door panel 211 , or the right side of the wide portion of the first door panel 211 is aligned with the right side of the narrow portion of the first door panel 211 .
  • the first door panel 211 and/or the second door panel 212 of the inverter 300 is designed as a special-shaped panel structure with an upper width and a lower width, so that when the first door panel 211 and the second door panel 212 are opened, a larger installation can be exposed.
  • space or maintenance space which is convenient for installation and maintenance of structural components such as capacitor cells in the inverter body; at the same time, it can also avoid creating a cabinet door structure on the upper part of the AC side 31, so as not to block the installation space of the inverter body Or increase the production cost of the cabinet 2.
  • the cabinet door 21 further includes an access door panel 213 .
  • the access door panel 213 is located on the same plane as the first door panel 211 and the second door panel 212 , and the access door panel 213 is located between the narrow part of the first door panel 211 and the second door panel 212 . between the narrow portions of the second door panel 212 .
  • the area enclosed by the wide part and the narrow part of the first door panel 211 is opposite to the area enclosed by the wide part and the narrow part of the second door panel 212 , that is, the first door panel 211 and the second door panel 212 Together, they form a mouth-shaped area with an open bottom.
  • the access door panel 213 is located in the area enclosed by the first door panel 211 and the second door panel 212, and the access door panel 213 is located in the same area as the first door panel 211 and the second door panel 212.
  • the inspection and maintenance work can be performed by only removing the access door panel 213 without opening the first door panel 211 and the second door panel 212 , so that the way of opening the first door panel 211 and/or the second door panel 212 or disassembling the access door panel 213 can be selectively selected according to the actual work needs for inspection and maintenance operations to improve work efficiency.
  • the cabinet 2 further has a vertical column structure 22 , and the column structure 22 is located inside the cabinet 2 .
  • the first door panel 211 and the second door panel 212 are closed, the first door panel 211 and the second door panel 211 are closed.
  • the wide portion of the door panel 212 is detachably connected to the column structure 22 .
  • the column structure 22 is vertically arranged in the middle of the upper part of the cabinet door 21, and the wide part of the first door panel 211 and the wide part of the second door panel 212 are detachably fixed to the left and right ends of the column structure 22, for example Said to be detachable and fixed by using fasteners such as screws or by using a snap-fit structure.
  • the column structure 22 by disposing the column structure 22, and connecting the wide parts of the first door panel 211 and the second door panel 212 to the column structure 22 detachably, in this way, after the first door panel 211 and the second door panel 212 are closed, the column The structure 22 can block the gap between the wide part of the first door panel 211 and the wide part of the second door panel 212 to prevent liquids such as rainwater from entering the cabinet 2 from the gap, so as to ensure the normal operation of the inverter 300. The service life of the inverter 300 is extended.
  • the AC side 31 of the inverter body is provided with a copper bar output interface 311 , and the copper bar output interface 311 is adapted to be connected to the copper bar input interface of the transformer 200 through the connection structure 400 .
  • the AC side 31 of the inverter 300 is usually directed toward the transformer 200 in the integrated platform. Therefore, in this embodiment, a copper bar output is provided on the AC side 31 of the inverter 300 .
  • the interface 311 facilitates the direct access of the inverter 300 to the transformer 200 through the connection structure 400 , which not only facilitates the connection, but also shortens the required length of the connection structure 400 and saves the cost of the connection structure 400 .
  • the copper bar output interface 311 can also be arranged below the inverter body, and the copper bar output interface 311 first extends towards the bottom of the cabinet 2 and then extends towards the rear side of the cabinet 2, so that the copper bar output interface 311
  • the output end of the inverter 300 is located on the AC side 31 of the inverter 300 , so that the inverter 300 can be directly connected to the transformer 200 through the connection structure 400 .
  • connection structure 400 is a copper bar, that is, an electrical connection is formed between the copper bar output interface 311 of the inverter 300 and the copper bar input interface of the transformer 200 through a copper bar, so that the inverter 300 can output alternating current through the copper bar. into the transformer 200.
  • the copper bar output interface 311 is located between the narrow portion of the first door panel 211 and the narrow portion of the second door panel 212 , and is located below the access door panel 213 .
  • the copper bar output interface 311 is arranged at the lower end of the cabinet 2 and below the access door panel 213 to prevent the connection structure 400 from blocking the installation space of the inverter body after the inverter 300 is connected to the transformer 200 through the connection structure 400 and maintenance space, so as to further ensure the maintainability of the inverter body.
  • the cabinet 2 is provided with an air duct structure 23 , and the heat exchanger 1 is adapted to discharge the absorbed heat from the air duct structure 23 to the outside of the cabinet 2 .
  • the arrangement of the air duct structure 23 not only facilitates the heat exchanger 1 to absorb the heat generated during the operation of the inverter 300 and discharges it from the air duct structure 23 to the outside of the cabinet 2 , but also facilitates the heat generated in the cabinet 2 to pass through the inside and outside of the cabinet 2 .
  • the air diffuses from the air duct structure 23 to the outside of the cabinet 2, and plays a certain role in ventilation and heat dissipation.
  • the air duct structure 23 includes an upper air duct 231 and a lower air duct 232, the upper air duct 231 is located at the upper end of the cabinet 2, the lower air duct 232 is located at the lower end of the cabinet 2, and the upper air duct 231 and the lower air duct 232 are louver structures.
  • both the upper and lower ends of the cabinet 2 are provided with air duct louver structures to increase the heat dissipation area of the cabinet 2 , thereby further improving the heat dissipation effect of the inverter 300 .
  • another embodiment of the present invention provides an integrated platform, including a box 100 , a transformer 200 disposed in the box 100 , and any of the inverters 300 described above, the inverter 300 and the transformer 200 They are respectively located at both ends of the box body 100 in the longitudinal direction, and the AC side 31 of the inverter 300 faces the transformer 200 .
  • the length direction of the box body 100 refers to the X-axis direction in FIG. 4 , which is also the front-rear direction of the box body 100 .
  • the width direction of the box body 100 refers to the Y-axis direction in FIG. 4 , which is also the direction of the box body 100 . left and right directions.
  • the inverter 300 is integrated at one end of the interior of the box 100 in the longitudinal direction, and the heat exchanger 1 is disposed on the AC side 31 of the inverter 300, so as not to increase the width of the inverter 300
  • the dimension in the direction that is, the Y-axis direction in FIG.
  • the heat exchanger 1 makes the width of the entire inverter 300 not exceed the width of the box 100 , which is convenient for transportation and transportation; moreover, the heat exchanger 1 is arranged on the AC side of the inverter 300 31, it can make the volume of the heat exchanger 1 increase without affecting the integrated design of the inverter 300 on the integrated platform; on the first door panel 211 and/or the second door panel 212, so that when the heat exchanger 1 is inspected and maintained, the heat exchanger 1 can be inspected only by rotating the first door panel 211 or the second door panel 212 open. There is no need to disassemble the entire cabinet door 21, and after the maintenance is completed, the first door panel 211 or the second door panel 212 only needs to be closed, the operation is simple and convenient, and the maintenance efficiency is high.

Abstract

本发明提供了一种逆变器及具有其的集成平台，所述逆变器包括具有柜门的机柜、设置在所述机柜内的逆变器本体和设置在所述机柜外部的热交换器，且所述逆变器本体具有交流侧，所述柜门位于所述逆变器本体的所述交流侧或所述交流侧的背侧。本发明通过将热交换器设置在逆变器本体的交流侧或交流侧的背侧，以保证逆变器在进行集成设计时，整个逆变器都能够位于箱体内，降低逆变器集成设计时的难度和成本。

Description

一种逆变器及具有其的集成平台
本申请要求于2021年03月25日提交中国专利局、申请号为202120615868.8、申请名称为“一种逆变器及具有其的集成平台”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。
技术领域
本发明涉及光伏逆变器技术领域，具体而言，涉及一种逆变器及具有其的集成平台。
背景技术
随着光伏逆变器的功率越来越大，内部热量也越来越大，同时防护等级也越来越高，为了同时兼顾散热和防护等级，需要为逆变器加装热交换器，以便于逆变器进行散热。但现有技术中，热交换器在逆变器上的设置位置不合理，导致逆变器整体的体积较大，增加了逆变器进行集成设计时的难度。
发明内容
本发明解决的问题是：对于加装有热交换器的逆变器而言，如何降低逆变器集成设计时的难度。
为解决上述问题，本发明提供一种逆变器，包括具有柜门的机柜、设置在所述机柜内的逆变器本体和设置在所述机柜外部的热交换器，且所述逆变器本体具有交流侧，所述柜门位于所述逆变器本体的所述交流侧或所述交流侧的背侧。
可选地，所述柜门包括适于旋转打开或关闭的第一门板和第二门板，所述热交换器设置在所述第一门板和/或所述第二门板上。
可选地，所述第一门板和/或所述第二门板上设有与所述机柜的内部空间连通的开口，所述热交换器可拆卸设置在所述开口处。
可选地，所述第一门板或所述第二门板呈上宽下窄的异型板结构，且所述第一门板或所述第二门板的窄部的竖直侧与宽部的竖直侧平齐。
可选地，所述柜门还包括检修门板，所述检修门板与所述第一门板和所述第二门板位于同一平面上，且所述检修门板位于所述第一门板的窄部与所述第二门板的窄部之间。
可选地，所述机柜还具有竖直设置的立柱结构，所述立柱结构位于所述机柜内部；在所述第一门板和所述第二门板关闭时，所述第一门板和所述第二门板的宽部均与所述立柱结构可拆卸连接。
可选地，所述逆变器本体的所述交流侧设有铜排输出接口，所述铜排输出接口适于通过连接结构与变压器的铜排输入接口连接。
可选地，所述铜排输出接口位于所述第一门板的窄部与所述第二门板的窄部之间，并位于所述检修门板的下方。
可选地，所述机柜上设有风道结构，所述热交换器适于将所吸收的热量从所述风道结构处排出所述机柜外。
为解决上述问题，本发明还提供一种集成平台，包括箱体、设置在所述箱体内的变压器以及上述任一所述的逆变器，所述逆变器和所述变压器分别位于所述箱体的长度方向上的两端，且所述逆变器的交流侧朝向所述变压器。
与现有技术相比，本发明具有以下有益效果：本发明通过将热交换器设置在逆变器本体的交流侧或交流侧的背侧，以保证逆变器在进行集成设计时，整个逆变器都能够位于箱体内，降低逆变器集成设计时的难度和成本；并且，通 过将热交换器设置在可旋转打开或关闭的第一门板和/或第二门板上，以在对热交换器进行检修维护时，只需要将第一门板或第二门板旋转打开就可以对热交换器进行检修工作，而无需将整个柜门拆卸下来，并且，在检修完成后，只需要将第一门板或第二门板关上即可，操作简单方便，且检修效率高性。
附图说明
图1为本发明实施例中逆变器的立体结构示意图；
图2为本发明实施例中逆变器的主视图；
图3为本发明实施例中逆变器拆掉柜门后的结构示意图；
图4为本发明实施例中集成平台的结构示意图。
附图标记说明：
1-热交换器，2-机柜，21-柜门，211-第一门板，212-第二门板，213-检修门板，22-立柱结构，23-风道结构，231-上风道，232-下风道，31-交流侧，311-铜排输出接口，100-箱体，200-变压器，300-逆变器，400-连接结构。
具体实施方式
为使本发明的上述目的、特征和优点能够更为明显易懂，下面结合附图对本发明的具体实施例做详细的说明。
需要说明的是，本文提供的坐标系XYZ中，X轴的正向代表左方，X轴的反向代表右方，Y轴的正向代表后方，Y轴的反向代表前方，Z轴的正向代表上方，Z轴的反向代表下方。同时，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本发明的实施例能够以除了在这里图示或描述的那些以外的顺序实施。
结合图1所示，本发明提供一种逆变器300，包括具有柜门21的机柜2、设置在机柜2内的逆变器本体和设置在机柜2外部的热交换器1，且逆变器本体具有交流侧31，柜门21位于逆变器本体的交流侧31或交流侧31的背侧。
本实施例中，逆变器本体的交流侧31为图1中逆变器300的后侧，相应地，交流侧31的背侧为图1中逆变器300的前侧。由于逆变器300的功率增大，其产热量也越来越大，热交换器1的体积也设计得越来越大，增大了整个逆变器300的体积，若将热交换器1设置在逆变器300的左侧或右侧，就会增加逆变器300在左右方向(即X轴方向)上的宽度尺寸，这使得在将逆变器300集成在集成平台的箱体100内时，由于需要将逆变器300的交流侧31朝向箱体100内的变压器200，以方便逆变器300与变压器200之间的连接，故热交换器1设置在逆变器300的宽度方向上两侧(即左侧或右侧)时，带有热交换器1的逆变器300容易超出标准箱体100的内部尺寸(即箱体100在左右方向上的宽度尺寸)，导致逆变器300集成困难。故本实施例中，将热交换器1设置在逆变器本体的交流侧31或交流侧31的背侧，以保证逆变器300在进行集成设计时，整个逆变器300都能够位于箱体100内，降低逆变器300集成 设计时的难度和成本。
可选地，结合图1所示，柜门21包括适于旋转打开或关闭的第一门板211和第二门板212，热交换器1设置在第一门板211和/或第二门板212上。
由于现有技术中的热交换器通常设置在逆变器的机柜内部柜门上并位于柜门外，且该柜门为一整块门板结构，在需要对热交换器进行检修时，需要将整个柜门拆卸下来，检修完完毕后再将柜门连同热交换器安装到逆变器的机柜上，整个操作过程较为繁琐，而且效率低下。故本实施例中，在逆变器300上加装热交换器1时，为了较小程度的改变逆变器300的原有结构，通常将热交换器1加装在逆变器300的机柜2外部，此时，只需要对逆变器300的机柜2进行适应性改进以安装热交换器1即可，而无需改动逆变器本体的结构，从而可以降低重新开发新的逆变器300的研发成本和难度；同时，将热交换器1外置于机柜2外部，可以减少机柜2的尺寸，降低机柜2的成本。并且，在逆变器300的机柜2中，热交换器1所在侧的柜门21不是一整块门板结构，而是由两块门板构成，即柜门21包括第一门板211和第二门板212，在逆变器300的功率较小时，可以选择在第一门板211或第二门板212上加装一个热交换器1，以满足小功率的逆变器300的散热需求，而在逆变器300的功率较大时，可以通过增大第一门板211或第二门板212上的热交换器1的体积，以提高散热效果，也可以选择在第一门板211和第二门板212上各加装一个热交换器1来提高散热效果；但从逆变器300的整体体积的角度考虑，本实施优选在逆变器300的功率较大时，采用在第一门板211和第二门板212上各加装一个热交换器1的方式来提高热交换器1的散热效果，以避免增加逆变器300的整体尺寸和体积。而且，第一门板211和第二门板212适于旋转打开或关闭，这 样，在对热交换器1进行检修维护时，只需要将第一门板211或第二门板212旋转打开就可以对热交换器1进行检修工作，而无需将整个柜门21拆卸下来，并且，在检修完成后，只需要将第一门板211或第二门板212关上即可，操作简单方便，且检修效率高。
可选地，机柜2还具有框架，框架由多根纵梁和横梁构成，第一门板211和第二门板212适于在关闭时通过紧固件固定在框架的横梁或纵梁上。
由于逆变器300在运输或搬运过程中通常会受到各式各样的振动冲击，当第一门板211和第二门板212仅仅是在摩擦力的作用下关闭上时，第一门板211和/或第二门板212容易在受到振动冲击时打开，导致机柜2内的逆变器本体暴露在运输环境中，使得逆变器本体容易受到其他物体撞击而发生损坏。故本实施例中，在第一门板211和第二门板212关闭后，还需要通过螺钉等紧固件将第一门板211和第二门板212固定在机柜2的框架上，如此，以防止逆变器300在运输或搬运过程中受到损伤，从而保障逆变器300在运输或搬运过程中的可靠性和安全性。
进一步地，第一门板211和第二门板212呈左右对称设置。如此，不仅可以提高柜门21的美观程度，还可以简化柜门21的结构，减少制造门板的种类，提高生产效率，也就是说，对于同一型号的机柜2来说，生产一种规格的门板结构即可，在装配时，可以无需区分哪一个门板装左边，哪一个门板装右边，只需要将两个相同规格的门板中的另一个旋转180°后就可以进行安装，从而也提高了柜门21的装配效率。
可选地，第一门板211和/或第二门板212上设有与机柜2的内部空间连通的开口，热交换器1可拆卸设置在开口处。
本实施例中，热交换器1可拆卸设置在第一门板211和/或第二门板212上，比如说，在第一门板211和/或第二门板212上的开口周围设置第一安装孔，在热交换器1上设置第二安装孔，通过将第一安装孔与第二安装孔对准，并向第一安装孔和第二安装孔内拧入螺钉等紧固件，以将热交换器1固定在第一门板211和/或第二门板212上，形成可拆卸连接；而且，通过设置开口，以将热交换器1与机柜2的内部空间连通，同时增大热交换器1与机柜2内部热空气的接触面积，便于热交换器1吸取机柜2内部的热量并排出至机柜2外。
可选地，结合图2所示，第一门板211和/或第二门板212呈上宽下窄的异型板结构，且第一门板211或第二门板212的窄部的竖直侧与宽部的竖直侧平齐。
本实施例中，第一门板211和/或第二门板212呈上宽下窄的倒L型板结构，且第一门板211和/或第二门板212具有宽部和窄部，其中，宽部的竖直侧即为宽部的左侧或右侧，相应地，窄部的竖直侧即为窄部的左侧或右侧。具体地，以第一门板211结构为例进行举例说明，第一门板211的宽部位于第一门板211的窄部的上方，第一门板211的窄部位于第一门板211的宽部的左下方，如此以构成第一门板211的倒L型板结构，且第一门板211的宽部在左右方向上尺寸大于第一门板211的窄部在左右方向上尺寸，第一门板211的宽部的左侧与第一门板211的窄部的左侧对齐，或者，第一门板211的宽部的右侧与第一门板211的窄部的右侧对齐。如此，将逆变器300的第一门板211和/或第二门板212设计为上宽下窄的异型板结构，使得在第一门板211和第二门板212打开时，能够露出更大的安装空间或维护空间，便于对逆变器本体中的 电容池等结构件进行安装及维护；同时，也可以避免在交流侧31的上部再产生一个柜门结构，以免遮挡逆变器本体的安装空间或增加机柜2的生产成本。
可选地，结合图1所示，柜门21还包括检修门板213，检修门板213与第一门板211和第二门板212位于同一平面上，且检修门板213位于第一门板211的窄部与第二门板212的窄部之间。
本实施例中，第一门板211的宽部和窄部所围成的区域与第二门板212的宽部和窄部所围成的区域相对设置，即，第一门板211和第二门板212共同围成一个下方呈敞开状的口字型区域，检修门板213位于第一门板211和第二门板212所围成的区域内，且检修门板213与第一门板211和第二门板212位于同一平面上，以防止检修门板213与第一门板211和第二门板212错位设置时产生间隙，存在漏水隐患。如此，通过设置检修门板213，以在需要对逆变器本体的局部位置进行检修和维护时，可以通过仅拆卸检修门板213来进行检修和维护作业，而无需打开第一门板211和第二门板212，从而可以根据实际的工作需要来有针对性地选择采用打开第一门板211和/或第二门板212，还是拆卸检修门板213的方式进行检修和维护作业，提高工作效率。
可选地，结合图3所示，机柜2还具有竖直设置的立柱结构22，立柱结构22位于机柜2内部，在第一门板211和第二门板212关闭时，第一门板211和第二门板212的宽部均与立柱结构22可拆卸连接。
本实施例中，立柱结构22竖直设置在柜门21上部的中间位置，且第一门板211的宽部和第二门板212的宽部分别可拆卸固定在立柱结构22的左右两端，比如说，采用螺钉等紧固件或者采用卡接结构进行可拆卸固定。由于生产误差的存在，使得第一门板211和第二门板212关闭后，第一门板211的宽部 和第二门板212的宽部之间或多或少的存在一定间隙，使得雨水等液体从该间隙进入机柜2内，容易造成逆变器300短路或损坏，影响逆变器300工作。故本实施例中，通过设置立柱结构22，并将第一门板211和第二门板212的宽部均与立柱结构22可拆卸连接，这样，第一门板211和第二门板212关闭后，立柱结构22可以对第一门板211的宽部和第二门板212的宽部之间的间隙进行遮挡，防止雨水等液体从该间隙进入机柜2内，保证逆变器300的正常工作，同时也可以延长逆变器300的使用寿命。
可选地，结合图1和图4所示，逆变器本体的交流侧31设有铜排输出接口311，铜排输出接口311适于通过连接结构400与变压器200的铜排输入接口连接。
由于在对逆变器300进行集成设计时，通常将逆变器300的交流侧31朝向集成平台中的变压器200，故本实施例中，通过在逆变器300的交流侧31设置铜排输出接口311，以便于逆变器300通过连接结构400直接接入变压器200，不仅连接方便，而且使得所需要的连接结构400的长度较短，节省了连接结构400的成本。
可选地，也可以将铜排输出接口311设置在逆变器本体的下方，且铜排输出接口311先朝机柜2的下方延伸再朝机柜2的后侧延伸，以使铜排输出接口311的输出端位于逆变器300的交流侧31，以便于逆变器300通过连接结构400直接接入变压器200。
进一步地，连接结构400为铜排，即逆变器300的铜排输出接口311与变压器200的铜排输入接口之间通过铜排形成电连接，以便于逆变器300将交流电经过铜排输出至变压器200中。
可选地，结合图1和图2所示，铜排输出接口311位于第一门板211的窄部与第二门板212的窄部之间，并位于检修门板213的下方。如此，将铜排输出接口311设置在机柜2的下端并位于检修门板213的下方，以在逆变器300通过连接结构400接入变压器200后，避免连接结构400遮挡逆变器本体的安装空间和维护空间，从而进一步保证逆变器本体的可维护性。
可选地，结合图1所示，机柜2上设有风道结构23，热交换器1适于将所吸收的热量从风道结构23处排出机柜2外。如此，风道结构23的设置不仅便于热交换器1将逆变器300工作时产生的热量吸收后从风道结构23处排出至机柜2外，还便于机柜2内产生的热量在机柜2内外空气的流动作用下从风道结构23处扩散至机柜2外，起到一定的通风散热作用。
进一步地，风道结构23包括上风道231和下风道232，上风道231位于机柜2的上端，下风道232位于机柜2的下端，且上风道231和下风道232为百叶窗结构。如此，在机柜2的上端和下端均设置风道百叶窗结构，以增大机柜2的散热面积，从而进一步提高逆变器300的散热效果。
为解决上述问题，本发明另一实施例提供一种集成平台，包括箱体100、设置在箱体100内的变压器200以及上述任一所述的逆变器300，逆变器300和变压器200分别位于箱体100的长度方向上的两端，且逆变器300的交流侧31朝向变压器200。其中，箱体100的长度方向指的是图4中X轴方向，也是箱体100的前后方向，相应地，箱体100的宽度方向指的是图4中Y轴方向，也是箱体100的左右方向。
本实施例的集成平台通过将逆变器300集成在箱体100内部长度方向上的一端，并将热交换器1设置在逆变器300的交流侧31，以不增大逆变器300 宽度方向(即图4中Y轴方向)的尺寸，使得整个逆变器300的宽度不超出箱体100的宽度，方便运输和转运；而且，将热交换器1设置在逆变器300的交流侧31，可以使得热交换器1的体积增大后也不影响逆变器300的在集成平台上的集成设计；另外，通过将热交换器1设置在逆变器300的可旋转打开或关闭的第一门板211和/或第二门板212上，以在对热交换器1进行检修维护时，只需要将第一门板211或第二门板212旋转打开就可以对热交换器1进行检修工作，而无需将整个柜门21拆卸下来，并且，在检修完成后，只需要将第一门板211或第二门板212关上即可，操作简单方便，且检修效率高。
虽然本公开披露如上，但本公开的保护范围并非仅限于此。本领域技术人员在不脱离本公开的精神和范围的前提下，可进行各种变更与修改，这些变更与修改均将落入本发明的保护范围。

Claims (10)

  1. 一种逆变器，其特征在于，包括具有柜门(21)的机柜(2)、设置在所述机柜(2)内的逆变器本体和设置在所述机柜(2)外部的热交换器(1)，且所述逆变器本体具有交流侧(31)，所述柜门(21)位于所述逆变器本体的所述交流侧(31)或所述交流侧(31)的背侧。
  2. 根据权利要求1所述的逆变器，其特征在于，所述柜门(21)包括适于旋转打开或关闭的第一门板(211)和第二门板(212)，所述热交换器(1)设置在所述第一门板(211)和/或所述第二门板(212)上。
  3. 根据权利要求2所述的逆变器，其特征在于，所述第一门板(211)和/或所述第二门板(212)上设有与所述机柜(2)的内部空间连通的开口，所述热交换器(1)可拆卸设置在所述开口处。
  4. 根据权利要求2所述的逆变器，其特征在于，所述第一门板(211)和/或所述第二门板(212)呈上宽下窄的异型板结构，且所述第一门板(211)或所述第二门板(212)的窄部的竖直侧与宽部的竖直侧平齐。
  5. 根据权利要求4所述的逆变器，其特征在于，所述柜门(21)还包括检修门板(213)，所述检修门板(213)与所述第一门板(211)和所述第二门板(212)位于同一平面上，且所述检修门板(213)位于所述第一门板(211)的窄部与所述第二门板(212)的窄部之间。
  6. 根据权利要求4所述的逆变器，其特征在于，所述机柜(2)还具有竖直设置的立柱结构(22)，所述立柱结构(22)位于所述机柜(2)内部；在所述第一门板(211)和所述第二门板(212)关闭时，所述第一门板(211)和所述第二门板(212)的宽部均与所述立柱结构(22)可拆卸连接。
  7. 根据权利要求5所述的逆变器，其特征在于，所述逆变器本体的所述交流侧(31)设有铜排输出接口(311)，所述铜排输出接口(311)适于通过连接结构(400)与变压器(200)的铜排输入接口连接。
  8. 根据权利要求7所述的逆变器，其特征在于，所述铜排输出接口(311)位于所述第一门板(211)的窄部与所述第二门板(212)的窄部之间，并位于所述检修门板(213)的下方。
  9. 根据权利要求1所述的逆变器，其特征在于，所述机柜(2)上设有风道结构(23)，所述热交换器(1)适于将所吸收的热量从所述风道结构(23)处排出所述机柜(2)外。
  10. 一种集成平台，其特征在于，包括箱体(100)、设置在所述箱体(100)内的变压器(200)以及如权利要求1-9中任一项所述的逆变器，所述逆变器和所述变压器(200)分别位于所述箱体(100)的长度方向上的两端，且所述逆变器的交流侧(31)朝向所述变压器。
PCT/CN2022/074191 2021-03-25 2022-01-27 一种逆变器及具有其的集成平台 WO2022199248A1 (zh)

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