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CN-224233538-U - Single-phase power module

CN224233538UCN 224233538 UCN224233538 UCN 224233538UCN-224233538-U

Abstract

The utility model belongs to the technical field of high-voltage frequency converters, and discloses a single-phase power module. The single-phase power module comprises a protection shell, an IGCT valve string module and a cooling module, wherein the IGCT valve string module comprises a mounting frame and a valve string, the valve string is divided into at least two sections of compression joint valve strings, the compression joint valve strings are connected with the mounting frame, each section of compression joint valve string extends along a first direction, the at least two sections of compression joint valve strings are arranged at intervals along a second direction, at least one side of the protection shell is provided with an opening, the IGCT valve string module is arranged on the protection shell, the cooling module is arranged on a first bottom plate, and a water cooling radiator of the compression joint valve string is communicated with the cooling module. The shell reduces the occupied area of the bottom of the shell under the condition of meeting the installation of the valve string, has compact internal structure and high space utilization rate in the shell.

Inventors

  • YANG ZHAO
  • ZHANG YINGCHENG
  • MA CHEN
  • QU DUO
  • SUN GUANGTAO
  • CUI YING

Assignees

  • 正泰清研(陕西)电力电子有限公司

Dates

Publication Date
20260512
Application Date
20250522

Claims (10)

  1. 1. Single-phase power module, characterized in that it comprises: IGCT valve string module (2), including installing frame (21) and valve cluster, the valve cluster divide into two section at least crimping valve cluster (22), crimping valve cluster (22) with installing frame (21) are connected, every section crimping valve cluster (22) all extends along first direction, two section at least crimping valve cluster (22) are along the second direction interval setting; the IGCT valve string module comprises a protective shell (1), wherein at least one side of the protective shell (1) is provided with an opening, and the IGCT valve string module (2) is arranged in the protective shell (1); And the cooling module (4) is arranged at the bottom of the protective shell, and a water cooling radiator (222) of the compression joint valve string (22) is communicated with the cooling module (4).
  2. 2. The single-phase power module according to claim 1, wherein the mounting frame (21) comprises a second top plate (211), a second bottom plate (212) and two second side plates (213), the second top plate (211), the second bottom plate (212) and the two second side plates (213) enclose a second accommodating cavity, and at least two sections of the crimp valve strings (22) are arranged in the second accommodating cavity.
  3. 3. Single-phase power module according to claim 2, characterized in that the mounting frame (21) further comprises at least one partition plate (214), both ends of the partition plate (214) being connected with two of the second side plates (213), respectively, the partition plate (214) dividing the second receiving cavity into several separate chambers, each of which is provided with one of the crimp valve strings (22), respectively.
  4. 4. The single-phase power module according to claim 2, wherein a plug (215) is screwed to an inner wall surface of the second side plate (213) of one of the two, a first end of the pressure-welding valve string (22) abuts against the plug (215), a second end of the pressure-welding valve string (22) abuts against the other second side plate (213), and the plug (215) is coaxially disposed with the pressure-welding valve string (22).
  5. 5. The single-phase power module according to claim 4, wherein a positioning groove is provided on an end surface of the first end of the pressure-welding valve string (22), a positioning protrusion (2151) is provided on an end of the top plug (215) near the pressure-welding valve string (22), and the positioning protrusion (2151) abuts against a groove bottom of the positioning groove.
  6. 6. The single-phase power module of claim 1, further comprising: At least two water-cooling reactors (3) set up respectively in the protecting crust, water-cooling reactor (3) are followed the second direction extends, the cooling runner of water-cooling reactor (3) with cooling module (4) intercommunication.
  7. 7. The single-phase power module according to claim 6, wherein the water-cooled reactor (3) comprises a continuous copper bar (31), a positive copper bar (32), a negative copper bar (33) and two aluminum pipes (34) with cooling flow channels, a plurality of magnetic rings (35) are sleeved on the aluminum pipes (34), the continuous copper bar (31) is sleeved on the first ends of the two aluminum pipes (34) at the same time, and the positive copper bar (32) and the negative copper bar (33) are sleeved on the second ends of the two aluminum pipes (34) respectively.
  8. 8. The single-phase power module according to claim 7, wherein the water-cooled reactor (3) further comprises a continuous pipe (36), and the cooling flow passages at the second ends of the two aluminum pipes (34) are respectively communicated with both ends of the continuous pipe (36).
  9. 9. The single-phase power module according to claim 7, wherein the protective housing (1) comprises a first top plate (11), a first bottom plate (12) and two first side plates (13), the continuous copper bar (31) is provided with a first connecting hole (311), and a first fastener passes through the first connecting hole (311) to be connected with the first side plates (13).
  10. 10. The single-phase power module according to claim 9, wherein the positive copper bar (32) is provided with a second connecting hole through which a second fastener is connected to the first side plate (13), and/or The negative electrode copper bar (33) is provided with a third connecting hole (331), and a third fastener penetrates through the third connecting hole (331) to be connected with the first side plate (13).

Description

Single-phase power module Technical Field The utility model relates to the technical field of high-voltage frequency converters, in particular to a single-phase power module. Background In the field of power electronics technology, high voltage frequency converters are a critical power electronics device, and they are responsible for regulating the rotational speed and torque of high voltage motors (the voltage class of which usually covers the range of 3kV, 6kV, 10kV and higher). The device is widely applied to a plurality of industrial fields such as electric power, metallurgy, mine, petrochemical industry, water treatment and the like by virtue of the excellent performance, and becomes an integral part of modern industrial automation and energy conservation and emission reduction. Since the 1997 integrated gate commutated thyristor (INTEGRATED GATE-Commutated Thyristor, IGCT for short) technology was first successfully applied in a converter device, the technology has made breakthrough progress in multiple dimensions of power, reliability, efficiency, cost, etc. with its unique advantages. The continuous maturation and optimization of IGCT technology not only promotes the overall leap of power electronics complete plant technology, but also enables IGCT-based current conversion devices to occupy a significant position in the power electronics field. IGCT converter devices are widely used in the field of high-voltage and medium-voltage frequency converters by virtue of their high efficiency, high reliability and flexible control characteristics, and their advantages are increasingly highlighted with the continuous progress of technology, exhibiting great development potential. In the device selection of the converter device, IGCT is gradually replacing the traditional thyristor power electronic switching device by virtue of its excellent electrical performance, and becomes the preferred scheme in the high-power converter device. The IGCT device not only has the remarkable characteristics of small quantity and high pressure resistance, but also greatly simplifies the design and manufacturing process of the converter device and improves the overall performance and reliability of the system. Therefore, single-phase power modules based on IGCT thyristors, by virtue of their unique advantages, occupy a place in the power electronics market. However, under the prior art conditions, single-phase power modules based on IGCT thyristors, diodes and water-cooled heat sinks still face some technical challenges. Specifically, for some single-phase power modules requiring horizontal installation with complex circuit topology mechanisms, the length of the valve string is relatively long, the size of the shell of the single-phase power module in the left-right length direction is required to be lengthened easily after the valve string is horizontally installed, and the design not only greatly increases the occupied area of the bottom of the shell, but also makes the internal structure of the shell not compact enough. Disclosure of utility model The utility model aims to provide a single-phase power module which not only reduces the occupied area of the bottom of a shell, but also makes the internal structure of the shell compact and improves the space utilization rate in the shell under the condition of meeting the installation of a valve string. To achieve the purpose, the utility model adopts the following technical scheme: A single phase power module comprising: The IGCT valve string module comprises a mounting frame and valve strings, wherein the valve strings are divided into at least two sections of compression joint valve strings, the compression joint valve strings are connected with the mounting frame, each section of compression joint valve strings extends along a first direction, and at least two sections of compression joint valve strings are arranged at intervals along a second direction; A protective shell, at least one side of the protective shell is provided with an opening, the IGCT valve string module is arranged in the protective shell; and the cooling module is arranged at the bottom of the protective shell, and the water-cooling radiator of the compression joint valve string is communicated with the cooling module. As an alternative scheme of the single-phase power module, the installation frame comprises a second top plate, a second bottom plate and two second side plates, the second top plate, the second bottom plate and the two second side plates enclose to form a second accommodating cavity, and at least two sections of the crimping valve strings are arranged in the second accommodating cavity. As an alternative scheme of the single-phase power module, the installation frame further comprises at least one partition plate, two ends of the partition plate are respectively connected with the two second side plates, the partition plate divides the second accommodating cavity into a plurality of separ