CN210958220U - Compact mining explosion-proof frequency converter power unit and frequency converter - Google Patents
Compact mining explosion-proof frequency converter power unit and frequency converter Download PDFInfo
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- CN210958220U CN210958220U CN201922407777.0U CN201922407777U CN210958220U CN 210958220 U CN210958220 U CN 210958220U CN 201922407777 U CN201922407777 U CN 201922407777U CN 210958220 U CN210958220 U CN 210958220U
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Abstract
The utility model discloses a compact mining flame proof frequency converter power unit, frequency converter, the power unit includes the power unit shell, still includes heat pipe radiator, main control board, pulse distribution board, voltage sensor, power distribution circuit board and power device subassembly; the power unit shell is arranged on the heat pipe radiator, and the heat pipe radiator is used as a bottom panel of the rate unit; the main control board is arranged on the front panel of the power unit shell; the pulse distribution board, the voltage sensor and the power distribution circuit board are arranged on a top panel of the power unit shell; the power device is installed inside the power unit shell. The utility model discloses a power unit compact structure, it is small, be convenient for maintain.
Description
Technical Field
The application relates to the technical field of electrical control structural components, in particular to a compact mining explosion-proof frequency converter power unit and a compact mining explosion-proof frequency converter.
Background
The power unit is a frequency converter component which uses a power electronic device for rectification and inversion, and is widely applied to equipment such as a motor, a frequency converter and the like, in particular to equipment such as a mining explosion-proof high-medium voltage frequency converter and the like; however, the frequency converters in the existing market generally have the following problems: the structure is more complicated, and the installation is more loaded down with trivial details, and later maintenance is also not very convenient, has restricted the development and the application of converter to a certain extent. Therefore, a new solution to this technical problem is urgently needed.
Disclosure of Invention
The utility model discloses just to the problem that exists among the prior art, provide a mining flame proof converter power unit of compact, converter, this power unit structure is fairly simple, has simplified the installation, and later maintenance is convenient.
The utility model provides a compact mining flame proof frequency converter power unit, which comprises a power unit shell, a heat pipe radiator, a main control board, a pulse distribution board, a voltage sensor, a power distribution circuit board, a power device component, a capacitor and a non-inductive bus; wherein the content of the first and second substances,
the power unit shell is arranged on the heat pipe radiator, and the heat pipe radiator is used as a rear panel of the power unit shell;
the main control board is arranged on the front panel of the power unit shell;
the pulse distribution board, the voltage sensor and the power distribution circuit board are arranged on a top panel of the power unit shell;
the power device assembly, the capacitor and the non-inductive bus are arranged in a power unit shell cavity.
Preferably, the power device assembly comprises an IGBT and a driving board thereof, and the IGBT and the driving board thereof are mounted on the heat pipe radiator.
Preferably, the non-inductive bus is an L-shaped non-inductive bus, a vertical surface of the L-shaped non-inductive bus is close to the IGBT, and a horizontal surface is placed on the bottom side inside the unit housing.
Preferably, an L-shaped plugboard is installed on the vertical surface of the noninductive bus, and the horizontal plate of the L-shaped plugboard is installed to meet the requirement of the capacitor placement height.
Preferably, the front panel and the top panel of the power unit housing are connected into a whole, the two side panels and the bottom panel are connected into a whole, and the front panel and the top panel of the power unit housing are installed with the two side panels and the bottom panel in an inserting manner.
Preferably, a supporting plate is arranged between the two side panels and the bottom panel of the power unit shell, the supporting plate is matched with the L-shaped plug board in a plug-in mode, and two notches are formed in one side, opposite to the capacitor, of the supporting plate and used for placing capacitor connection points.
Preferably, threaded holes are formed in the periphery of the heat pipe radiator, the heat pipe radiator is installed at the rear portion of the explosion-proof cabinet body in an exposed mode through bolts, and after the bolts are disassembled, the power unit can be integrally drawn out.
Preferably, a plurality of heat dissipation holes are formed in the bottom of the power unit casing.
Preferably, the main control board is installed in a shielding box, and the shielding box is installed on the front panel of the power unit through a bolt.
The utility model also provides a mining flame proof converter of compact, including the aforesaid arbitrary mining flame proof converter power unit of compact.
Compared with the prior art, the utility model has the advantages that 1) the noninductive bus (L type) with the new structure used in the power unit in the technical scheme leads the alternating current bus and the direct current bus which are separated in the past to be integrated, the connection is more convenient, and the distance between the main capacitor and the IGBT is shortened, so that the stray inductance generated by the nearest loop is smaller; 2) in the technical scheme, the power unit optimizes the installation mode of the main control board, and is installed in an aluminum shielding box, and the installation position of the shielding box is right in front of the unit, so that the installation, maintenance and debugging of communication optical fiber signal lines among the power units are facilitated; 3) this technical scheme makes power unit overall structure compacter reasonable, and is small, only needs to pull the bolt open from cabinet body rear portion and just can directly take power unit out, easy to assemble maintenance.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limitation. The present application will be described in detail with reference to the accompanying drawings and examples.
FIG. 1 is the overall structure diagram of the power unit for the mining flameproof frequency converter in the embodiment of the utility model;
FIG. 2 is an overall exploded view of the power unit for the mining flameproof frequency converter according to the embodiment of the present invention;
in the figure: 1. the heat pipe radiator comprises a heat pipe radiator body 2, a pulse distribution plate 3, a voltage sensor plate 4, a main control plate 5, a power unit shell 6, a non-inductive bus 7, an IGBT and a driving plate thereof 8, a capacitor 9 and a power distribution circuit board.
Detailed Description
In order to make the purpose, technical solution and advantages of the present invention clearer, embodiments of the present invention will be described in detail below with reference to the accompanying drawings in embodiments of the present invention. As shown in fig. 1 and fig. 2, the power unit for the mining compact explosion-proof frequency converter comprises a power unit shell 5, a heat pipe radiator 1, a main control board 4, a pulse distribution board 2, a voltage sensor 3, a power distribution circuit board 9, a power device assembly, a non-inductive bus 6 and a capacitor 8.
The power unit housing 5 is mounted on the heat pipe radiator 1 through bolts, and the heat pipe radiator 1 is used as a bottom panel of the power unit. The main control board is installed on a front panel of the power unit shell through bolts, the pulse distribution board, the voltage sensor and the power distribution circuit board are installed on a top panel of the power unit shell through bolts, and the power device assembly, the capacitor and the non-inductive bus are installed in an inner cavity of the power unit shell through bolts.
Further, the power device assembly comprises an IGBT and a drive plate 7 thereof, the IGBT and the drive plate 7 thereof are installed on the heat pipe radiator 1 through bolts, the capacitor 8 is placed on the front surface of the IGBT, and the unit shell is used as a support to reduce certain gravity brought to the non-inductive bus by the capacitor assembly; the non-inductive bus 6 is connected with the capacitor and the IGBT through bolts and is placed inside the unit shell.
Furthermore, the non-inductive bus 6 is an L-shaped non-inductive bus, the vertical surface of the L-shaped non-inductive bus is close to the IGBT, and the horizontal surface is placed at the lower side inside the unit case. Therefore, the stray inductance of the main capacitor and the IGBT closest to the loop is smaller, adverse factors such as electromagnetic interference caused by reasons such as secondary connection are reduced, and the AC and DC copper bars are more convenient to connect externally.
The L-shaped plugboard is installed on the vertical surface of the non-inductive bus, and the horizontal plate of the L-shaped plugboard is installed to meet the requirement of the capacitor placement height.
Furthermore, the front panel and the top panel of the power unit shell are connected into a whole, the two side panels and the bottom panel are connected into a whole, and the front panel and the top panel of the power unit shell are installed with the two side panels and the bottom panel in an inserting mode.
Furthermore, a supporting plate is arranged between the two side panels and the bottom panel of the power unit shell, the supporting plate is matched with the L-shaped plug board in a plug-in mode, two notches are arranged on one side, right opposite to the capacitor, of the supporting plate, and the notches are used for placing capacitor connection points.
Furthermore, threaded holes are formed in the periphery of the heat pipe radiator, the heat pipe radiator is installed at the rear portion of the anti-explosion cabinet body in an exposed mode through bolts, and after the bolts are disassembled, the power unit can be integrally drawn out. The heat generated by the power component can be brought out of the shell by the explosion-proof fan through the fins in the heat pipe radiator.
Furthermore, a plurality of heat dissipation holes are formed in the lower portion of the power unit shell, and heat dissipation of the power assembly in the cavity is facilitated.
Further, the main control board is installed in a shielding box, and the shielding box is installed on the front panel of the power unit through bolts.
One power unit of the above embodiment is a rectifier module in two levels. The two units can form a complete diode-clamped two-level topology converter.
The utility model also provides a mining flame proof converter of compact, including the mining flame proof converter power unit of compact among the above-mentioned embodiment in the converter.
The utility model adopts the technical proposal that the noninductive bus (L type) with the new structure used in the power unit integrates the alternating current bus and the direct current bus which are separated in the past, so that the connection is more convenient, and the distance between the main capacitor and the IGBT is shortened to ensure that the stray inductance generated by the nearest loop is smaller; in the technical scheme, the power unit optimizes the installation mode of the main control board, and is installed in an aluminum shielding box, and the installation position of the shielding box is right in front of the unit, so that the installation, maintenance and debugging of communication optical fiber signal lines among the power units are facilitated; this technical scheme makes power unit overall structure compacter reasonable, only need follow cabinet body rear portion tear the bolt open just can directly take power unit out like this, easy to assemble maintains.
Claims (10)
1. A compact mining explosion-proof frequency converter power unit is characterized by comprising a power unit shell, a heat pipe radiator, a main control board, a pulse distribution board, a voltage sensor, a power distribution circuit board, a power device assembly, a capacitor and a non-inductive bus;
the power unit shell is arranged on the heat pipe radiator, and the heat pipe radiator is used as a rear panel of the power unit shell;
the main control board is arranged on the front panel of the power unit shell;
the pulse distribution board, the voltage sensor and the power distribution circuit board are arranged on a top panel of the power unit shell;
the power device assembly, the capacitor and the non-inductive bus are arranged in a power unit shell cavity.
2. The compact mining flameproof frequency converter power unit of claim 1, wherein the power device assembly comprises an IGBT and a drive plate thereof, and the IGBT and the drive plate thereof are mounted on a heat pipe radiator.
3. The compact mining flameproof frequency converter power unit of claim 2, wherein the noninductive bus is an L-shaped noninductive bus, a vertical surface of the L-shaped noninductive bus is close to the IGBT, and a horizontal surface is placed at the bottom side inside the unit shell.
4. The compact mining flameproof frequency converter power unit of claim 3, wherein an L-shaped plugboard is installed on a vertical surface of the noninductive bus, and a horizontal plate of the L-shaped plugboard is installed to meet the requirement of capacitor placement height.
5. The compact mining flameproof frequency converter power unit of claim 1, wherein a front panel and a top panel of the power unit housing are connected into a whole, two side panels and a bottom panel are connected into a whole, and the front panel and the top panel of the power unit housing are installed with the two side panels and the bottom panel in an insertion manner.
6. The compact mining flameproof frequency converter power unit of claim 5, wherein a support plate is arranged between the two side panels and the bottom panel of the power unit housing, the support plate is matched with the L-shaped plugboard in a plugging manner, and two notches are arranged on one side of the support plate, which faces the capacitor, and the notches are used for placing capacitor connection points.
7. The compact mining flameproof frequency converter power unit of claim 1 or 6, wherein the heat pipe radiator is provided with threaded holes around, is mounted at the rear part of the flameproof cabinet body through exposed bolts, and can be integrally drawn out after the bolts are removed.
8. The compact mining flameproof frequency converter power unit of claim 7, characterized in that a plurality of heat dissipation holes are provided at the bottom of the power unit housing.
9. The compact mining flameproof frequency converter power unit of claim 1, wherein the main control panel is mounted in a shielding box, and the shielding box is mounted on a front panel of the power unit through bolts.
10. A compact mining flameproof frequency converter is characterized by comprising the compact mining flameproof frequency converter power unit of any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922407777.0U CN210958220U (en) | 2019-12-27 | 2019-12-27 | Compact mining explosion-proof frequency converter power unit and frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922407777.0U CN210958220U (en) | 2019-12-27 | 2019-12-27 | Compact mining explosion-proof frequency converter power unit and frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210958220U true CN210958220U (en) | 2020-07-07 |
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ID=71379193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922407777.0U Active CN210958220U (en) | 2019-12-27 | 2019-12-27 | Compact mining explosion-proof frequency converter power unit and frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210958220U (en) |
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2019
- 2019-12-27 CN CN201922407777.0U patent/CN210958220U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.7, Zhujiang Road, the second industrial park, Xuzhou high tech Zone, Xuzhou City, Jiangsu Province, 221116 Patentee after: Jiangsu Guochuan Electric Co.,Ltd. Address before: No.7, Zhujiang Road, the second industrial park, Xuzhou high tech Zone, Xuzhou City, Jiangsu Province, 221116 Patentee before: CHINA MINING DRIVES & AUTOMATION Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |