CN217545908U - Mine inverter - Google Patents
Mine inverter Download PDFInfo
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- CN217545908U CN217545908U CN202122490240.2U CN202122490240U CN217545908U CN 217545908 U CN217545908 U CN 217545908U CN 202122490240 U CN202122490240 U CN 202122490240U CN 217545908 U CN217545908 U CN 217545908U
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Abstract
The utility model relates to a mine inverter, belonging to the power supply field; the modularized direct current inverter power supply with stable output voltage and higher voltage quality is provided; the technical scheme is as follows: a mining inverter power supply comprising: a main circuit module encapsulated with epoxy resin, the main circuit module comprising: the transformer T2, the transformer T3, the rectifying circuit and the filter circuit; an auxiliary circuit module adapted to the main circuit module, the auxiliary circuit module comprising: the circuit comprises a TL494CN chip, an inverter circuit, an oscillation circuit and a switch control circuit; the TL494CN chip is connected with the inverter circuit, the transformer T2 and the oscillating circuit in turn, the oscillating circuit is connected with the signal input end of the switch control circuit, the switch control circuit is arranged between the main circuit and the primary coil of the transformer T3, and the secondary coil of the transformer T3 is connected with the rectifying circuit and the filter circuit in turn; the main circuit module is electrically connected with the auxiliary circuit module, and the auxiliary circuit module is used for controlling the output voltage of the main circuit module.
Description
Technical Field
The utility model relates to a mining invertion power supply belongs to the power field.
Background
The direct-current inverter power supply is applied to a plurality of large-scale equipment, and can conveniently and quickly provide stable direct-current power supplies for some auxiliary devices.
Generally, the dc inverter power supply can be simply classified into: the main circuit is mainly connected with a high-voltage power supply of equipment and outputs a stable and reliable direct-current power supply after voltage reduction and rectification; the control circuit controls the output voltage and current of the main circuit according to requirements.
However, the control circuit is an electronic component, which is easily damaged, and the main circuit has relatively high reliability. Therefore, the situation that the whole direct current inverter power supply cannot operate due to the fault of the control circuit often occurs. Affecting normal operation.
In addition, the phase of the DC intrinsic safety power supply adopting PWM is as follows: the alternating current is sent to the direct current PWM converter after being rectified and filtered, and the output voltage of the direct current PWM converter is changed by changing the control pulse duty ratio of an IGBT in the direct current PWM converter. This mode causes power output power poor stability, only can be applicable in conventional electrical equipment, can't satisfy the demand to precision equipment.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a stable, the higher modularization direct current inverter of voltage quality of output voltage.
In order to achieve the technical purpose, the utility model provides a technical scheme does:
a mining inverter power supply comprising:
a main circuit module encapsulated with an epoxy resin, the main circuit module comprising: the transformer T2, the transformer T3, the rectifying circuit and the filter circuit;
an auxiliary circuit module adapted to the main circuit module, the auxiliary circuit module comprising: the circuit comprises a TL494CN chip, an inverter circuit, an oscillation circuit and a switch control circuit;
the TL494CN chip is sequentially and electrically connected with an inverter circuit, a transformer T2 and an oscillation circuit, the oscillation circuit is connected with a signal input end of a switch control circuit, the switch control circuit is arranged between a main circuit and a primary coil of a transformer T3, and a secondary coil of the transformer T3 is sequentially connected with a rectifying circuit and a filter circuit;
the main circuit module is electrically connected with the auxiliary circuit module, and the auxiliary circuit module is used for controlling the output voltage of the main circuit module.
The switch control circuit includes: IGBT1 and IGBT2, resistance R45 and electric capacity C5 connect in parallel and form RC1 circuit, resistance R46 and electric capacity C6 connect in parallel and form RC2 circuit, IGBT1 and IGBT 2's grid all is connected with PWM waveform control circuit, IGBT 1's collecting electrode and RC1 circuit one end all are connected with the main circuit, IGBT1 emitter is connected with transformer T3 primary winding one end, transformer T3 primary winding other end and RC1 circuit other end all are connected with RC2 circuit one end, and RC2 circuit other end ground connection, IGBT2 collecting electrode connects transformer T3 primary winding one end, IGBT2 emitter ground connection.
And a circuit formed by serially connecting a capacitor C11 and a resistor R6 is connected in parallel with two ends of the primary coil of the transformer T3.
The PWM waveform control circuit comprises a TL494CN chip.
The transformer T2 includes: a primary winding T21, a first secondary winding T22, and a second secondary winding T23, and the first secondary winding T22 and the second secondary winding T23 are oppositely wound;
the inverter circuit includes: NPN type triode Q7, NPN type triode Q5, PNP type triode Q8, PNP type triode Q6, the circuit is: a base electrode of a triode Q7 and a base electrode of a triode Q8 are connected in parallel and then connected with a resistor R10 in series, the resistor R10 is connected with a TL494CN chip pin 9, a base electrode of a triode Q5 and a base electrode of a triode Q6 are connected in parallel and then connected with a resistor R11 in series, the resistor R11 is connected with a TL494CN chip pin 10, a collector electrode of the triode Q7 and a collector electrode of the triode Q5 are connected with a DC12V power supply, an emitter electrode of the triode Q7 is connected with a collector electrode of the triode Q8, an emitter electrode of the triode Q5 is connected with a collector electrode of the triode Q6, an emitter electrode of the triode Q8 and an emitter electrode of the triode Q6 are both grounded, one end of a primary coil T21 is connected with a connecting point of the emitter electrode of the triode Q7 and the collector electrode of the triode Q8, and the other end of the primary coil T21 is connected with a connecting point of the emitter electrode of the triode Q5 and the collector electrode of the triode Q6;
the oscillation circuit includes: oscillation circuit A and oscillation circuit B, oscillation circuit A is: the two ends of the first secondary coil T22 are connected in parallel with a series circuit of a capacitor C28 and a resistor R29, the collector of the triode Q3 is connected in parallel with one end of the first secondary coil T22 and the grid of the IGBT2, the emitter of the triode Q3 is connected with the source of the IGBT2, and the base of the triode Q3 is connected with the other end of the first secondary coil T22;
the oscillation circuit B is as follows: the second secondary coil T23 both ends are parallelly connected with electric capacity C29 and resistance R33's series circuit, and triode Q4 collecting electrode is parallelly connected with second secondary coil T23 one end and IGBT1 grid, triode Q4 projecting pole connects IGBT1 source electrode, triode Q4 base and the other end of second secondary coil T23 are connected.
Transformer T3 is dual output transformer, a plurality of diode positive poles are met to the first secondary winding of transformer T3, other a plurality of diode positive poles are met to transformer T3 second secondary winding one end, the first secondary winding other end of transformer T3 and transformer T3 second secondary winding other end link to each other ground connection behind the series resistance once more.
The main circuit module includes: the main circuit comprises a main circuit shell, a main circuit PCB, an auxiliary interface and a power interface; the shell is internally fixed with a main circuit PCB, the wall of the shell is embedded with an auxiliary interface and a power interface, the auxiliary interface and the power interface are respectively and electrically connected with the main circuit PCB, the shell is filled with epoxy resin, and the epoxy resin completely covers electrical elements on the main circuit PCB.
And cathodes of a plurality of diodes connected with the transformer T3 are all connected with anodes of a plurality of electrolytic capacitors, and cathodes of the electrolytic capacitors are grounded.
The main circuit module further comprises a heat conduction sleeve, wherein the heat conduction sleeve is sleeved outside the transformer on the main circuit PCB, and the heat conduction sleeve extends to the outer side of the epoxy resin.
The auxiliary circuit module includes: the auxiliary circuit comprises an auxiliary circuit shell, a control end interface, a control panel and a control circuit; the auxiliary circuit shell is internally provided with a control circuit, the control end interface and the control panel are embedded on the auxiliary circuit shell, the control end interface and the control panel are respectively electrically connected with the control circuit, and the control end interface is connected with the auxiliary interface.
And a clamping groove fixed with the auxiliary circuit shell is arranged on the main circuit shell.
The clamping groove comprises two straight plates which are arranged in parallel, and grooves are formed in the opposite surfaces of the straight plates;
two protruding strips which are matched with the clamping grooves are arranged on the auxiliary circuit shell, and the two protruding strips are inserted into the corresponding grooves.
An auxiliary interface is arranged on a main circuit shell between the two parallel straight plates, and a control end interface matched with the auxiliary interface is arranged on the auxiliary circuit shell.
The straight plate is provided with a through hole, the main circuit shell is provided with a threaded hole matched with the through hole in the straight plate, and the main circuit shell and the auxiliary circuit shell are fixed through screws.
And the connection point of the emitting electrode of the triode Q7 and the collecting electrode of the triode Q8 of the inverter circuit is connected with the pin 1 of the control end interface, and the connection point of the emitting electrode of the triode Q5 and the collecting electrode of the triode Q6 is connected with the other pin 2 of the control end interface.
And the emitter of the IGBT1 and the collector of the IGBT2 are connected and then connected with a control end interface pin 3.
The collector of the triode Q3 is connected with a control end interface pin 4, and the base of the triode Q3 is connected with a control end interface pin 5.
And the collector of the triode Q4 is connected with a control end interface pin 6, and the base of the triode Q4 is connected with a control end interface pin 7.
One end of the primary coil T21 is connected with the auxiliary interface pin 1, and the other end of the primary coil T21 is connected with the auxiliary interface pin 2.
One end of the primary coil of the transformer T3 is connected with the auxiliary interface pin 3.
One end of the first sub-coil T22 is connected to the auxiliary interface pin 4, and the other end of the first sub-coil T22 is connected to the auxiliary interface pin 5.
One end of the second sub-coil T23 is connected to the auxiliary interface pin 6, and the other end of the second sub-coil T23 is connected to the auxiliary interface pin 7.
The control end interface and the auxiliary interface are correspondingly spliced one by one to realize connection.
Compared with the prior art, the utility model following beneficial effect has:
1. the utility model discloses pass through on-off control circuit with the direct current and realize exchanging contravariant, carry out PWM modulation simultaneously in this process, pass through rectification and filtering after the vary voltage once more, can improve voltage stability, also can further carry out filtering through the alternating current as required and handle and improve power quality.
2. The utility model discloses a frequency amplification circuit further improves the PWM frequency through oscillating circuit, and high frequency on-off control can realize that the control of power output duty cycle satisfies power output power voltage simultaneously steady, and voltage fluctuation scope is less promptly.
3. The utility model discloses an inverter circuit converts TL494CN chip output direct current signal into the alternating current of same frequency, realizes promoting alternating current frequency by a wide margin through oscillating circuit, realizes then that the certain pulse frequency of duty cycle is higher among the PWM modulation process, and then realizes that power output voltage is steady.
4. The utility model discloses a modularization is actual, and the fragile part independently sets up, and the quick replacement of being convenient for realizes putting into operation fast once more behind the inverter circuit trouble.
5. The utility model discloses adopt the epoxy encapsulation to main circuit module, further fix not fragile part, prevent that equipment vibrations from causing the main circuit module trouble.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of the main circuit module cross-section structure of the present invention.
Fig. 3 is a schematic diagram of the structure of the auxiliary circuit module of the present invention.
Fig. 4 is a top view of the auxiliary circuit module of the present invention.
Fig. 5 is a circuit diagram for connecting the switch control circuit and the transformer T3 of the present invention.
Fig. 6 is the circuit diagram of the transformer T3 connected to the rectifier circuit and the filter circuit.
Fig. 7 is a schematic diagram of the PWM waveform control circuit according to the present invention.
In the figure: 11 is a main circuit module, 12 is an auxiliary circuit module, 111 is a main circuit housing, 112 is a main circuit PCB, 113 is an auxiliary interface, 114 is a power interface, 115 is a heat conducting sleeve, 121 is an auxiliary circuit housing, 122 is a control terminal interface, and 123 is a control panel.
Detailed Description
For a further understanding of the present invention, reference will now be made in detail to the following examples and embodiments, taken in conjunction with the accompanying drawings:
as shown in fig. 1 to 7: a mining invertion power supply, include:
a main circuit module 11 encapsulated with epoxy resin, the main circuit module 11 comprising: the transformer T2, the transformer T3, the rectifying circuit and the filter circuit;
an auxiliary circuit module 12 adapted to the main circuit module 11, the auxiliary circuit module 12 comprising: TL494CN chip, inverter circuit an oscillation circuit and a switch control circuit;
the TL494CN chip is sequentially and electrically connected with an inverter circuit, a transformer T2 and an oscillation circuit, the oscillation circuit is connected with a signal input end of a switch control circuit, the switch control circuit is arranged between a main circuit and a primary coil of a transformer T3, and a secondary coil of the transformer T3 is sequentially connected with a rectifying circuit and a filter circuit;
the main circuit module 11 is electrically connected to the auxiliary circuit module 12, and the auxiliary circuit module 12 is configured to control the output voltage of the main circuit module 11.
The switch control circuit includes: IGBT1 and IGBT2, resistance R45 and electric capacity C5 connect in parallel and constitute the RC1 circuit, resistance R46 and electric capacity C6 connect in parallel and constitute the RC2 circuit, IGBT1 and IGBT 2's grid all is connected with PWM waveform control circuit, IGBT1 collecting electrode and RC1 circuit one end all are connected with the main circuit, IGBT1 projecting pole is connected with transformer T3 primary winding one end, transformer T3 primary winding other end and RC1 circuit other end all are connected with RC2 circuit one end, and the other end ground connection of RC2 circuit, IGBT2 collecting electrode connects transformer T3 primary winding one end, IGBT2 projecting pole ground connection.
And a circuit formed by connecting a capacitor C11 and a resistor R6 in series is connected in parallel at two ends of the primary coil of the transformer T3.
The PWM waveform control circuit comprises a TL494CN chip.
The transformer T2 includes: a primary winding T21, a first secondary winding T22, and a second secondary winding T23, and the first secondary winding T22 and the second secondary winding T23 are oppositely wound;
the inverter circuit includes: NPN type triode Q7, NPN type triode Q5, PNP type triode Q8, PNP type triode Q6, the circuit is: a base electrode of a triode Q7 and a base electrode of a triode Q8 are connected in parallel and then connected with a resistor R10 in series, the resistor R10 is connected with a TL494CN chip pin 9, a base electrode of a triode Q5 and a base electrode of a triode Q6 are connected in parallel and then connected with a resistor R11 in series, the resistor R11 is connected with a TL494CN chip pin 10, a collector electrode of the triode Q7 and a collector electrode of the triode Q5 are connected with a DC12V power supply, an emitter electrode of the triode Q7 is connected with a collector electrode of the triode Q8, an emitter electrode of the triode Q5 is connected with a collector electrode of the triode Q6, an emitter electrode of the triode Q8 and an emitter electrode of the triode Q6 are both grounded, one end of a primary coil T21 is connected with a connecting point of the emitter electrode of the triode Q7 and the collector electrode of the triode Q8, and the other end of the primary coil T21 is connected with a connecting point of the emitter electrode of the triode Q5 and the collector electrode of the triode Q6;
the oscillation circuit includes: oscillation circuit A and oscillation circuit B, oscillation circuit A is: the two ends of the first secondary coil T22 are connected in parallel with a series circuit of a capacitor C28 and a resistor R29, the collector of the triode Q3 is connected in parallel with one end of the first secondary coil T22 and the grid of the IGBT2, the emitter of the triode Q3 is connected with the source of the IGBT2, and the base of the triode Q3 is connected with the other end of the first secondary coil T22;
the oscillation circuit B is as follows: the both ends of second secondary coil T23 are parallelly connected with the series circuit who has electric capacity C29 and resistance R33, and triode Q4 collecting electrode is parallelly connected with second secondary coil T23 one end and IGBT1 grid, triode Q4 projecting pole connects IGBT1 source electrode, triode Q4 base and the other end of second secondary coil T23 are connected.
Transformer T3 is dual output transformer, transformer T3 first secondary winding one end connects a plurality of diode positive pole, transformer T3 second secondary winding one end connects other a plurality of diode positive poles, the ground connection behind the first secondary winding other end of transformer T3 and the second secondary winding other end of transformer T3 link to each other series resistance once more.
The main circuit module 11 includes: a main circuit casing 111, a main circuit PCB board 112, an auxiliary interface 113, and a power interface 114; the main circuit PCB board 112 is fixed in the shell 111, the wall of the shell 111 is embedded with an auxiliary interface 113 and a power interface 114, the auxiliary interface 113 and the power interface 114 are respectively electrically connected with the main circuit PCB board 112, the shell 111 is filled with epoxy resin, and the epoxy resin completely covers electrical elements on the main circuit PCB board 112.
The cathodes of the diodes connected with the transformer T3 are connected with the anodes of the electrolytic capacitors, and the cathodes of the electrolytic capacitors are grounded.
The main circuit module 11 further includes a heat conducting sleeve 115, the transformer is sleeved with the heat conducting sleeve 115 on the main circuit PCB 112, and the heat conducting sleeve 115 extends to the outside of the epoxy resin.
The auxiliary circuit module 12 includes: an auxiliary circuit housing 121, a control terminal interface 122, a control panel 123 and a control circuit; a control circuit is arranged in the auxiliary circuit shell 121, the control terminal interface 122 and the control panel 123 are embedded on the auxiliary circuit shell 121, the control terminal interface 122 and the control panel 123 are respectively electrically connected with the control circuit, and the control terminal interface 122 is connected with the auxiliary interface 113.
The main circuit casing 111 is provided with a card slot fixed with the auxiliary circuit casing 121.
The clamping groove comprises two parallel straight plates, and grooves are formed in the opposite surfaces of the straight plates;
two protruding strips which are matched with the clamping grooves are arranged on the auxiliary circuit shell 121, and the two protruding strips are inserted into the corresponding grooves.
An auxiliary interface 113 is arranged on the main circuit casing 111 between the two parallel straight plates, and a control end interface 122 adapted to the auxiliary interface 113 is arranged on the auxiliary circuit casing 121.
The straight plate is provided with a through hole, the main circuit shell 111 is provided with a threaded hole matched with the through hole in the straight plate, and the main circuit shell 111 and the auxiliary circuit shell 121 are fixed through screws.
The connection point of the emitter of the inverter circuit triode Q7 and the collector of the triode Q8 is connected with the pin 1 of the control terminal interface 122, and the connection point of the emitter of the triode Q5 and the collector of the triode Q6 is connected with the other pin 2 of the control terminal interface 122.
And the emitter of the IGBT1 and the collector of the IGBT2 are connected and then connected with a pin 3 of a control terminal interface 122.
The collector of the triode Q3 is connected to pin 4 of the control terminal interface 122, and the base of the triode Q3 is connected to pin 5 of the control terminal interface 122.
The collector of the triode Q4 is connected to pin 6 of the control terminal interface 122, and the base of the triode Q4 is connected to pin 7 of the control terminal interface 122.
One end of the primary coil T21 is connected to pin 1 of the auxiliary interface 113, and the other end of the primary coil T21 is connected to pin 2 of the auxiliary interface 113.
One end of the primary coil of the transformer T3 is connected with a pin 3 of the auxiliary interface 113.
One end of the first sub-coil T22 is connected to the pin 4 of the auxiliary interface 113, and the other end of the first sub-coil T22 is connected to the pin 5 of the auxiliary interface 113.
One end of the second sub-winding T23 is connected to pin 6 of the auxiliary interface 113, the other end of the second sub-winding T23 is connected to pin 7 of the auxiliary interface 113.
The control terminal interfaces 122 are correspondingly plugged with the auxiliary interfaces 113 one by one to realize connection.
The utility model discloses the concrete operation process does:
the TL494CN chip pin 9 and pin 10 output pulse signals, the DC12V power supply passes through the inverter circuit and the primary coil T21 under the control of the TL494CN chip, the pulse frequency is greatly improved after passing through the first secondary coil T22, the second secondary coil T23 and the oscillation circuit, the high-frequency alternating current controls the on-off or the on-off of the IGBT1 and the IGBT2, the high-frequency pulse width modulation is realized, and then the stable direct current voltage is output through rectification and filtering.
The above embodiments are merely illustrative of the principles of the present invention and its effects, and do not limit the present invention. It will be apparent to those skilled in the art that modifications and improvements can be made to the above-described embodiments without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications or changes be made by those skilled in the art without departing from the spirit and technical spirit of the present invention, and be covered by the claims of the present invention.
Claims (10)
1. A mining inverter power supply, characterized by comprising:
a main circuit module (11) encapsulated with an epoxy resin, the main circuit module (11) comprising: the transformer T2, the transformer T3, the rectifying circuit and the filter circuit;
an auxiliary circuit module (12) adapted to the main circuit module (11), the auxiliary circuit module (12) comprising: the circuit comprises a TL494CN chip, an inverter circuit, an oscillation circuit and a switch control circuit;
the TL494CN chip is sequentially and electrically connected with an inverter circuit, a transformer T2 and an oscillation circuit, the oscillation circuit is connected with a signal input end of a switch control circuit, the switch control circuit is arranged between a main circuit and a primary coil of a transformer T3, and a secondary coil of the transformer T3 is sequentially connected with a rectifying circuit and a filter circuit;
the main circuit module (11) is electrically connected with the auxiliary circuit module (12), and the auxiliary circuit module (12) is used for controlling the output voltage of the main circuit module (11).
2. The mining inverter power supply according to claim 1, characterized in that: the switch control circuit includes: IGBT1 and IGBT2, resistance R45 and electric capacity C5 connect in parallel and constitute the RC1 circuit, resistance R46 and electric capacity C6 connect in parallel and constitute the RC2 circuit, IGBT1 and IGBT 2's grid all is connected with PWM waveform control circuit, IGBT1 collecting electrode and RC1 circuit one end all are connected with the main circuit, IGBT1 projecting pole is connected with transformer T3 primary winding one end, transformer T3 primary winding other end and RC1 circuit other end all are connected with RC2 circuit one end, and the other end ground connection of RC2 circuit, IGBT2 collecting electrode connects transformer T3 primary winding one end, IGBT2 projecting pole ground connection.
3. The mining inverter power supply of claim 2, wherein: and a circuit formed by serially connecting a capacitor C11 and a resistor R6 is connected in parallel with two ends of the primary coil of the transformer T3.
4. The mining inverter power supply according to claim 3, wherein: the PWM waveform control circuit comprises a TL494CN chip.
5. The mining inverter power supply according to claim 4, wherein: the transformer T2 includes: a primary winding T21, a first secondary winding T22 and a second secondary winding T23, the first secondary winding T22 and the second secondary winding T23 being wound in opposite directions;
the inverter circuit includes: NPN type triode Q7, NPN type triode Q5, PNP type triode Q8, PNP type triode Q6, the circuit is: the base electrode of the triode Q7 and the base electrode of the triode Q8 are connected in parallel and then connected with a resistor R10 in series, the resistor R10 is connected with a TL494CN chip pin 9, the base electrode of the triode Q5 and the base electrode of the triode Q6 are connected in parallel and then connected with a resistor R11 in series, the resistor R11 is connected with a TL494CN chip pin 10, the collector electrode of the triode Q7 and the collector electrode of the triode Q5 are connected with a DC12V power supply, the emitter electrode of the triode Q7 is connected with the collector electrode of the triode Q8, the emitter electrode of the triode Q5 is connected with the collector electrode of the triode Q6, the emitter electrode of the triode Q8 and the emitter electrode of the triode Q6 are both grounded, one end of the primary coil T21 is connected with a connecting point of the emitter electrode of the triode Q7 and the collector electrode of the triode Q8, and the other end of the primary coil T21 is connected with a connecting point of the emitter electrode of the triode Q5 and the collector electrode of the triode Q6;
the oscillation circuit includes: oscillation circuit A and oscillation circuit B, oscillation circuit A is: the two ends of the first secondary coil T22 are connected in parallel with a series circuit of a capacitor C28 and a resistor R29, the collector of a triode Q3 is connected in parallel with one end of the first secondary coil T22 and the grid of the IGBT2, the emitter of the triode Q3 is connected with the source of the IGBT2, and the base of the triode Q3 is connected with the other end of the first secondary coil T22;
the oscillation circuit B is as follows: the both ends of second secondary coil T23 are parallelly connected with the series circuit who has electric capacity C29 and resistance R33, and triode Q4 collecting electrode is parallelly connected with second secondary coil T23 one end and IGBT1 grid, triode Q4 projecting pole connects IGBT1 source electrode, triode Q4 base and the other end of second secondary coil T23 are connected.
6. The mining inverter power supply according to claim 5, wherein: transformer T3 is dual output transformer, a plurality of diode positive poles are met to the first secondary winding of transformer T3, other a plurality of diode positive poles are met to transformer T3 second secondary winding one end, the first secondary winding other end of transformer T3 and transformer T3 second secondary winding other end link to each other ground connection behind the series resistance once more.
7. The mining inverter power supply according to claim 6, wherein: the main circuit module (11) includes: a main circuit casing (111), a main circuit PCB board (112), an auxiliary interface (113) and a power interface (114); the PCB structure is characterized in that a main circuit PCB (112) is fixed in the shell (111), an auxiliary interface (113) and a power interface (114) are embedded in the wall of the shell (111), the auxiliary interface (113) and the power interface (114) are electrically connected with the main circuit PCB (112) respectively, epoxy resin is filled in the shell (111), and the epoxy resin completely covers electrical elements on the main circuit PCB (112).
8. The mining inverter power supply according to claim 7, wherein: the cathodes of a plurality of diodes connected with the transformer T3 are all connected with the anodes of a plurality of electrolytic capacitors, and the cathodes of the electrolytic capacitors are grounded;
the main circuit module (11) further comprises a heat conduction sleeve (115), the heat conduction sleeve (115) is sleeved outside the transformer on the main circuit PCB (112), and the heat conduction sleeve (115) extends to the outer side of the epoxy resin.
9. The mining inverter power supply according to claim 8, wherein: the auxiliary circuit module (12) comprises: the auxiliary circuit comprises an auxiliary circuit shell (121), a control end interface (122), a control panel (123) and a control circuit; be provided with control circuit in auxiliary circuit shell (121), control end interface (122) and control panel (123) are inlayed on auxiliary circuit shell (121), control end interface (122) and control panel (123) respectively with control circuit electrical connection, be connected between control end interface (122) and auxiliary interface (113).
10. The mining inverter power supply according to claim 9, wherein: and a clamping groove fixed with the auxiliary circuit shell (121) is arranged on the main circuit shell (111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122490240.2U CN217545908U (en) | 2021-10-15 | 2021-10-15 | Mine inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122490240.2U CN217545908U (en) | 2021-10-15 | 2021-10-15 | Mine inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217545908U true CN217545908U (en) | 2022-10-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122490240.2U Active CN217545908U (en) | 2021-10-15 | 2021-10-15 | Mine inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217545908U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116667632A (en) * | 2023-06-01 | 2023-08-29 | 广州市科隆节能科技有限公司 | Rectifier control method and control system |
-
2021
- 2021-10-15 CN CN202122490240.2U patent/CN217545908U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116667632A (en) * | 2023-06-01 | 2023-08-29 | 广州市科隆节能科技有限公司 | Rectifier control method and control system |
| CN116667632B (en) * | 2023-06-01 | 2023-11-10 | 广州市科隆节能科技有限公司 | Rectifier control method and control system |
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