CN-122028349-A - Permanent magnet all-in-one machine

CN122028349ACN 122028349 ACN122028349 ACN 122028349ACN-122028349-A

Abstract

The invention discloses a permanent magnet all-in-one machine which comprises an IGBT module, a limiting part, a capacitor and a fixing module, wherein the limiting part is fixedly arranged at the bottom of the IGBT module, the capacitor is detachably arranged below the limiting part, a gap is reserved between the capacitor and the limiting part, the fixing module is arranged at the top of the capacitor and positioned in the gap, the permanent magnet all-in-one machine comprises a fixing seat fixedly arranged at the top of the capacitor, an adjusting nut and an adjusting screw rod which is in sliding connection with the fixing seat, the adjusting screw rod is driven by the adjusting nut to move towards the direction close to the limiting part to abut against the limiting part so as to limit the capacitor between the limiting part and a placing bearing surface of the capacitor, and the connecting rod is also driven by the adjusting nut to move towards the direction far away from the limiting part so as to separate from the limiting part so as to release the limitation of the capacitor. This scheme is convenient for the dismouting maintenance of IGBT module and electric capacity.

Inventors

ZHANG HONGBO
WANG XIHUA
ZHAO BIN
JIANG ZHANGUANG
HUANG CHAONAN

Assignees

青岛中加特电气股份有限公司

Dates

Publication Date: 20260512
Application Date: 20241112

Claims (10)

1. The utility model provides a permanent magnetism all-in-one which characterized in that includes: An IGBT module; The limiting part is fixedly arranged at the bottom of the IGBT module; The capacitor is detachably arranged below the limiting part, and a gap is formed between the capacitor and the limiting part; the fixed module is arranged at the top of the capacitor and positioned in the gap, and comprises: The fixed seat is fixedly arranged at the top of the capacitor; the adjusting nut is connected with the fixing seat in a sliding manner; An adjusting screw rod passing through the adjusting nut; The connecting rod part is configured to move towards the direction close to the limiting part under the driving of the adjusting nut so as to be abutted against the limiting part, so that the capacitor is limited between the limiting part and the placing bearing surface of the capacitor, and is further configured to move away from the limiting part under the driving of the adjusting nut so as to be separated from the limiting part, so that the limitation of the capacitor is relieved.
2. The permanent magnet all-in-one machine according to claim 1, wherein, The IGBT module comprises an IGBT body and a heat dissipation plate, wherein the heat dissipation plate is arranged at the bottom of the IGBT body and is configured to cool the IGBT body, and the limiting part is arranged at the bottom of the heat dissipation plate.
3. The permanent magnet all-in-one machine according to claim 1, wherein, When the capacitor is installed, the capacitor is placed below the limiting part, a gap is reserved between the top of the capacitor and the limiting part, the adjusting screw rod rotates in a first direction under the action of external force, the adjusting nut moves in a second direction along the adjusting screw rod, and the adjusting nut drives the connecting rod part to deform in a direction close to the limiting part, so that the connecting rod part abuts against the limiting part, and the capacitor is limited between the limiting part and a placing bearing surface of the capacitor.
4. The permanent magnet all-in-one machine according to claim 1, wherein, When the capacitor is disassembled, the adjusting screw rod rotates along a third direction under the action of external force, the adjusting nut moves along the adjusting screw rod towards a fourth direction, the adjusting nut drives the connecting rod part to deform towards a direction away from the limiting part, the connecting rod part is far away from the limiting part, the limiting part is released from limiting the capacitor, and the capacitor is allowed to be taken out from the lower part of the limiting part.
5. The permanent magnet all-in-one machine according to claim 2, wherein, The connecting rod part comprises a first connecting rod and a second connecting rod, wherein the first end of the first connecting rod is rotationally connected with the first end of the second connecting rod, the second end of the first connecting rod is rotationally connected with the adjusting nut, and the second end of the second connecting rod is rotationally connected with the fixing seat.
6. The permanent magnet all-in-one machine according to claim 5, wherein, The adjusting screw rod is a bidirectional screw rod, the bidirectional screw rod comprises two sections of thread sections, and any one of the thread sections is respectively provided with the adjusting nut and the connecting rod part.
7. The permanent magnet all-in-one machine according to claim 5, wherein, The fixing seat is provided with a guide groove, and the adjusting nut is in sliding connection with the guide groove.
8. The permanent magnet all-in-one machine according to claim 7, wherein, The fixing seat comprises two opposite sub-fixing seats, the side wall of any one sub-fixing seat is provided with the guide groove, and the adjusting screw rod passes through the space between the two sub-fixing seats.
9. The permanent magnet all-in-one machine according to claim 8, wherein, The second end of the first connecting rod is rotatably connected with the adjusting nut through a first pin shaft, and the end part of the first pin shaft is positioned in the guide groove and slides along the guide groove.
10. The permanent magnet all-in-one machine according to claim 2, wherein, The limiting part is provided with a groove part, the groove part extends along the length direction of the adjusting screw rod, and the connecting rod part moves towards the direction close to the limiting part to be abutted to the groove part.

Description

Permanent magnet all-in-one machine Technical Field The invention relates to the technical field of motors, in particular to a permanent magnet all-in-one machine. Background The permanent magnet integrated machine is a motor drive system integrated with a permanent magnet motor and an electric control system, and adopts the permanent magnet motor as a drive motor, and realizes motor drive by utilizing the magnetic characteristic of a permanent magnet material. The permanent magnet all-in-one machine can be applied to various occasions in industrial production, such as wind power generation, water pumps, compressors, fans and the like. The permanent magnet all-in-one machine comprises an IGBT module 100, a capacitor 300, a power module 500 and the like. IGBT (Insulated Gate Bipolar Transistor) Chinese is called as insulated gate bipolar transistor, which is a compound full-control voltage-driven power semiconductor device composed of BJT (bipolar transistor) and MOS (insulated gate field effect transistor). Referring to fig. 1, the capacitor 300 is fixedly disposed above the IGBT module 100 by a fixing member 600. In actual use, the frequency of failure of the IGBT module 100 is much greater than the capacitance. When the IGBT module 100 is to be repaired, the capacitor 300 and the fixing member 600 need to be removed first to repair the IGBT module 100. In addition, in high power equipment, the capacitor 300 has a large weight, for example, more than 50kg, and when in underground maintenance, the capacitor 300 needs to be manually disassembled without hoisting equipment on site, so that the maintenance difficulty is increased. The above information disclosed in this background section is only for enhancement of understanding of the background section of the application and therefore it may not form the prior art that is already known to those of ordinary skill in the art. Disclosure of Invention Aiming at the problems pointed out in the background art, the invention provides a permanent magnet all-in-one machine which is convenient for disassembly, assembly and maintenance of an IGBT module and a capacitor. In order to achieve the aim of the invention, the invention is realized by adopting the following technical scheme: The application provides a permanent magnet all-in-one machine, which comprises an IGBT module, a limiting part, a capacitor and a fixing module, wherein the limiting part is fixedly arranged at the bottom of the IGBT module, the capacitor is detachably arranged below the limiting part, a gap is reserved between the capacitor and the limiting part, the fixing module is arranged at the top of the capacitor and positioned in the gap, the fixing module comprises a fixing seat fixedly arranged at the top of the capacitor, an adjusting nut is in sliding connection with the fixing seat, an adjusting screw rod is used for abutting the limiting part by moving towards the direction close to the limiting part under the driving of the adjusting nut, and the connecting rod part is used for limiting the capacitor between the limiting part and a placing bearing surface of the capacitor and is used for separating from the limiting part by moving away from the limiting part under the driving of the adjusting nut so as to release the limiting of the capacitor. This scheme is convenient for the dismouting maintenance of IGBT module and electric capacity. In some embodiments of the present application, the IGBT module includes an IGBT body and a heat dissipation plate, the heat dissipation plate is disposed at a bottom of the IGBT body, the heat dissipation plate is configured to cool the IGBT body, and the limit portion is disposed at a bottom of the heat dissipation plate. In some embodiments of the present application, when the capacitor is installed, the capacitor is placed below the limiting portion, a gap is provided between the top of the capacitor and the limiting portion, the adjusting screw rod rotates along a first direction under the action of an external force, the adjusting nut moves along the adjusting screw rod towards a second direction, and the adjusting nut drives the connecting rod portion to deform towards a direction close to the limiting portion, so that the connecting rod portion abuts against the limiting portion, and the capacitor is limited between the limiting portion and the placing bearing surface of the capacitor. In some embodiments of the present application, when the capacitor is disassembled, the adjusting screw rod rotates along a third direction under the action of an external force, the adjusting nut moves along the adjusting screw rod towards a fourth direction, and the adjusting nut drives the connecting rod portion to deform towards a direction away from the limiting portion, so that the connecting rod portion is away from the limiting portion, and limiting of the capacitor by the limiting portion is released, so as to allow the capacitor to be taken out from below th