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EP-4192213-B1 - CONVERTER MODULE AND CONVERTER CABINET

EP4192213B1EP 4192213 B1EP4192213 B1EP 4192213B1EP-4192213-B1

Inventors

  • LIU, JINFENG
  • ZHOU, JIE
  • SHEN, Zhi

Dates

Publication Date
20260506
Application Date
20210528

Claims (8)

  1. A converter module, comprising a housing (101) and a converter body (102) that is mounted in the housing (101); wherein a heat dissipation passage is provided, an air inlet (13) and an air outlet (11), which are in communication with the heat dissipation passage, are provided in the housing (101); wherein the heat dissipation passage is at least distributed on two sides of the converter body (102); characterized in that , the heat dissipation passage is formed and enclosed by the housing (101) and the converter body (102), and a fan (103) is mounted in the heat dissipation passage; the heat dissipation passage comprises an upper air duct (12), a vertical air duct (14) and a lower air duct (15) which are in communication in a listed sequence; wherein the upper air duct (12) is located above the converter body (102); the lower air duct (15) is located below the converter body (102); and the vertical air duct (14) is located on a side surface of the converter body (102) and communicates the upper air duct (12) with the lower air duct (15); wherein the air inlet (13) is in communication with the upper air duct (12), and the air outlet (11) is in communication with the lower air duct (15); the upper air duct (12) covers an upper surface of the converter body (102); the lower air duct (15) covers a lower surface of the converter body (102); and the vertical air duct (14) covers the side surface of the converter body (102).
  2. The converter module according to claim 1, wherein the air inlet (13) and the air outlet (11) are arranged on two adjacent side surfaces of the housing (101).
  3. The converter module according to claim 2, wherein a windshield baffle (104) is fixed in the upper air duct (12), a ventilation hole is provided in the windshield baffle (104), the upper air duct (12) is divided into a buffer space and a circulation space by the windshield baffle (104); the buffer space is in communication with the air inlet (13), and the circulation space is in communication with the vertical air duct (14).
  4. The converter module according to claim 3, wherein an air inlet direction of the air inlet (13) is perpendicular to a ventilation direction of the ventilation hole.
  5. The converter module according to claim 4, wherein an air outlet direction of the air outlet (11) is opposite to the ventilation direction of the ventilation hole.
  6. The converter module according to claim 1, wherein the fan (103) is fixed in the lower air duct (15).
  7. The converter module according to claim 6, wherein a heat dissipater (105) is mounted in the lower air duct (15); the fan (103) is arranged in the lower air duct (15) at a position which is in communication with the vertical air duct (14), and is configured to pump an incoming air from the vertical air duct (14) to the heat dissipater (105), and discharge the incoming air from the air outlet (11).
  8. A converter cabinet, comprising a plurality of stacked converter modules, wherein each converter module is the converter module according to any one of claims 1 to 7.

Description

This application is a national stage of International Patent Application Serial No. PCT/CN2021/096667, filed May 28, 2021, which claims priority to Chinese Patent Application No. 202021574525.3, titled "CONVERTER MODULE AND CONVERTER CABINET", filed with the China National Intellectual Property Administration on July 31, 2020. FIELD The present application relates to the technical field of machinery industry, and more particularly, to a converter module, and to a converter cabinet applying the converter module. BACKGROUND A converter cabinet includes multiple converter modules that are stacked; a bottom of each converter module is respectively provided with a heat dissipation fan and a heat dissipater, which are used to dissipate heat for IGBT (Insulated Gate Bipolar Transistor) of the converter module. However, in the existing converter cabinet, the heat dissipation fan and the heat dissipater only dissipate heat for the IGBT from the bottom, which cannot achieve uniform heat dissipation, and thus the heat dissipation effect of which is a poor. In addition, the converter modules are stacked and are in a compact structure, which leads to a gradual increase in the ambient temperature during working, and even the ambient temperature between the two stacked converter modules exceeds a maximum allowable working temperature of the converter modules. Therefore, a technical problem to be solved urgently by those skilled in the art is to uniformly dissipate heat for a heat source component of the converter module and improve the heat dissipation effect. CN 202364105 U discloses a heat dissipation structure of a frequency converter. The heat dissipation structure includes a chassis, a partition is provided in the chassis, a main control board is installed on the partition, a rectifier bridge, a thyristor and IGBT modules are installed on one side of the main control board. The chassis has air inlets and air outlets. The IGBT modules are divided into three groups installed on three different radiators respectively. The radiator passes through the partition and is located on the other side of the partition. A closed shell cover covers each of the radiators to form an independent heat dissipation duct, and a fan group is installed on the shell cover. The air enters from the air inlet and is divided into multiple paths, and enters different heat dissipation air ducts respectively for cooling. US 20170112020 A1 discloses an electronics system including a chassis system and one or more electronics packages that are held on the chassis system. The chassis provides cooling for the electronics packages by receiving heat generated by the electronics packages and passively transferring the heat to a cooling fluid flowing through the chassis. The chassis defines a closed fluid circuit such that the cooling fluid does not directly engage the electronics packages. The chassis includes multiple bridge heat sinks that are spaced apart laterally from one another to define a corresponding cavity between each pair of adjacent bridge heat sinks. Each bridge heat sink defines a fluid channel through the respective heat sink. The cooling fluid is configured to flow through the port opening into the fluid distribution chamber before flowing through the slots into the fluid channels of the bridge heat sinks. CN 202395676 U discloses an inverter cabinet including a casing, a module compartment is formed at the front of the casing for carrying and installing a power module (IGBT), and a radiator is provided at a lower surface of the power module for dissipating the heat generated by the power module when working. An air duct for accommodating the radiator is formed in the module compartment. One end of the air duct extends to the front end plate of the module compartment and corresponds to a first air port formed on the front end plate, while the other end extends to a first partition plate between the module compartment and the fan compartment, and is connected to the fan compartment through a second air port formed on the first partition plate. SUMMARY In view of this, a converter module is provided according to the present application, a heat dissipation passage are formed and enclosed by a housing and a converter body of the converter module, and the heat dissipation passage is at least distributed on two sides of the converter body, so that the heat dissipation airflow can simultaneously dissipate heat for the converter body from the at least two sides, which is beneficial to achieving uniform heat dissipation and improving the heat dissipation effect. A converter cabinet is further provided according to the present application, which applies the above converter module and has an excellent heat dissipation effect. In order to realize the above objects, the following technical solutions are provided according to the present application: a converter module includes a housing and a converter body that is mounted in the housing; a heat diss