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CN-224205478-U - Frequency converter with compact structure

CN224205478UCN 224205478 UCN224205478 UCN 224205478UCN-224205478-U

Abstract

The utility model discloses a frequency converter with a compact structure, which comprises an upper shell, a lower shell, a control panel, a driving plate, an IGBT module, a wiring terminal row, a radiator and a fan, wherein the IGBT module, the wiring terminal row, the radiator and the fan are integrated on the driving plate, the upper shell is fixedly connected with the lower shell, two ends of the upper shell are respectively provided with an air inlet and an air outlet correspondingly, the lower shell comprises a bottom plate, a vertical plate and a top plate which are sequentially and integrally connected, the control panel is transversely fixed at one end of the top plate, the driving plate is vertically arranged at one side of the vertical plate, the radiator is fixedly arranged at the other side of the vertical plate, the IGBT module is fixedly connected to the back of the radiator, and the fan is fixedly arranged at one end of the vertical plate and positioned at the inner side of the air inlet and positioned at the same side with the air inlet, the radiator and the air outlet. The utility model can fully utilize the three-dimensional space, ensures that the frequency converter has more compact structure and more reasonable layout on the basis of ensuring effective heat dissipation, thereby effectively saving the occupied space, and has more convenient wiring and no misconnection and misconnection.

Inventors

  • LIANG FUSHENG
  • CHEN XUESHENG

Assignees

  • 安徽海尚变频技术有限公司

Dates

Publication Date
20260505
Application Date
20250520

Claims (10)

  1. 1. The frequency converter is characterized in that the lower shell comprises a bottom plate, a vertical plate and a top plate which are sequentially and integrally connected, the control plate is transversely fixed at one end of the top plate, the driving plate is vertically arranged at one side of the vertical plate, the radiator is fixedly arranged at the other side of the vertical plate, the IGBT module is fixedly connected to the back surface of the radiator, the fan is fixedly arranged at one end of the vertical plate and is positioned at the inner side of the air inlet, and the fan, the radiator and the air outlet are positioned at the same side.
  2. 2. The frequency converter of claim 1, wherein a side edge of one end of the top plate is integrally connected with a plurality of support columns respectively, and the support columns are used for supporting one side of the control board from the lower side, and limit buckles are integrally connected to the two support columns respectively.
  3. 3. The frequency converter with a compact structure as set forth in claim 2, wherein two limiting clamping grooves are formed on one side edge of the control board, the two limiting clamping buckles are respectively and correspondingly clamped in the two limiting clamping grooves and used for fixing one side of the control board, and the other side of the control board is abutted against the upper side edge of the driving board.
  4. 4. The frequency converter of claim 1, wherein the riser has a window in the middle, and first through holes at four corners of the window.
  5. 5. The frequency converter of claim 4, wherein the back of the radiator is respectively provided with a first threaded blind hole with four corners symmetrical, and a first bolt passes through the first through hole and is screwed into the corresponding first threaded blind hole.
  6. 6. The frequency converter with a compact structure as set forth in claim 1, wherein the IGBT module is provided with second through holes on two sides, a second threaded blind hole is formed on the back of the radiator, and a second bolt passes through the second through holes and is screwed into the corresponding second threaded blind hole.
  7. 7. The frequency converter of claim 6, wherein said drive plate is provided with a third through hole for said second bolt to pass through.
  8. 8. The frequency converter with a compact structure as set forth in claim 1, wherein the two sides of the bottom of the upper shell are respectively provided with a clamping groove, the two side edges of the lower shell are respectively and integrally connected with a buckle, the buckle can be clamped into the corresponding clamping groove, the upper surface of the lower shell is integrally connected with a limiting block, and the limiting block is abutted to the outer side of the lower edge of the driving plate and used for limiting the driving plate from the outer side.
  9. 9. The frequency converter with a compact structure according to claim 1, wherein the wiring terminal block comprises an input terminal block and an output terminal block of a control board and an input terminal block and an output terminal block of a driving board, the input terminal block and the output terminal block of the control board are arranged in a staggered manner, an opening for exposing the input terminal block and the output terminal block of the control board is arranged on the upper shell, the upper shell is respectively raised upwards at positions corresponding to the input terminal block and the output terminal block of the driving board and forms a protruding portion, and wiring holes are formed in the side wall of the protruding portion.
  10. 10. The frequency converter with a compact structure according to claim 1, wherein a fan installation position is arranged at one end of the vertical plate, positioning columns extending transversely are integrally connected to four corners of the fan installation position respectively, third threaded blind holes are formed in the end faces of the positioning columns, positioning holes are formed in four corners of the fan respectively, the fan is sleeved on the positioning columns through the positioning holes, and third bolts are screwed into the corresponding third threaded blind holes.

Description

Frequency converter with compact structure Technical Field The utility model relates to the technical field of frequency converters, in particular to a frequency converter with a compact structure. Background The frequency converter is an electric control device for controlling an alternating current motor by changing the frequency of a motor working power supply by applying a frequency conversion technology and a microelectronic technology, and mainly comprises a shell, a control board, a driving board, a wiring terminal row, a radiator, a fan and the like, wherein the control board and the driving board are transversely fixed in the shell. Because a large number of electronic components are integrated on the driving plate, including IGBT modules, large capacitors and the like, the size is larger, the requirement on the internal space of the shell is higher, and on the basis of ensuring that the components can be effectively contained and the effective heat dissipation is ensured, how to enable the frequency converter to be more compact in structure, so that the occupied space is saved, and the problem to be solved is solved. In addition, the wiring terminal block generally includes an input terminal block and an output terminal block of the control board and an input terminal block and an output terminal block of the driving board, and how to facilitate wiring is also a problem to be solved. Disclosure of utility model The utility model aims to overcome the defects and shortcomings in the prior art, and provides the frequency converter with a compact structure, so that the frequency converter is more compact in structure and more reasonable in layout on the basis of guaranteeing effective heat dissipation, thereby saving occupied space and facilitating wiring. In order to achieve the above purpose, the present utility model provides the following technical solutions: The frequency converter is characterized in that the lower shell comprises a bottom plate, a vertical plate and a top plate which are sequentially and integrally connected, the control plate is transversely fixed at one end of the top plate, the driving plate is vertically arranged at one side of the vertical plate, the radiator is fixedly arranged at the other side of the vertical plate, the IGBT module is fixedly connected to the back surface of the radiator, the fan is fixedly arranged at one end of the vertical plate and is positioned at the inner side of the air inlet, and the fan, the radiator and the air outlet are positioned at the same side. Further, a plurality of support columns are integrally connected to one side edge of one end of the top plate respectively and are used for supporting one side of the control panel from the lower side, and limiting buckles are integrally connected to the two support columns respectively. Further, two limiting clamping grooves are formed in one side edge of the control plate, two limiting buckles are correspondingly clamped in the two limiting clamping grooves respectively and used for fixing one side of the control plate, and the other side of the control plate is abutted to the upper side edge of the driving plate. Further, a window is arranged in the middle of the vertical plate, and first through holes are respectively formed in four corners of the window on the vertical plate. Further, the back of the radiator is respectively provided with a first threaded blind hole with four symmetrical corners, and a first bolt penetrates through the first through hole and is screwed into the corresponding first threaded blind hole. Further, second through holes are respectively formed in two sides of the IGBT module, second threaded blind holes are formed in the back face of the radiator, and second bolts penetrate through the second through holes and are screwed into the corresponding second threaded blind holes. Further, a third through hole for the second bolt to pass through is formed in the driving plate. Further, the both sides of the bottom of epitheca are equipped with the draw-in groove respectively, the both sides border of inferior valve is the buckle of being connected with respectively an organic whole, the buckle can block into corresponding in the draw-in groove, the upper surface of inferior valve an organic whole be connected with the stopper, the butt in the outside of the lower edge of drive plate for it is spacing to the drive plate from the outside. The upper shell is provided with openings for exposing the input terminal row and the output terminal row of the control board, the upper shell is respectively raised upwards at the positions corresponding to the input terminal row and the output terminal row of the driving board and forms a protruding part, and the side wall of the protruding part is provided with wiring holes. Further, one end of the vertical plate is provided with a fan installation position, four corners of the fan installation position are respectively and integrally