CN210724575U - High-voltage power unit and high-voltage frequency converter - Google Patents
High-voltage power unit and high-voltage frequency converter Download PDFInfo
- Publication number
- CN210724575U CN210724575U CN201921620571.XU CN201921620571U CN210724575U CN 210724575 U CN210724575 U CN 210724575U CN 201921620571 U CN201921620571 U CN 201921620571U CN 210724575 U CN210724575 U CN 210724575U
- Authority
- CN
- China
- Prior art keywords
- power
- board
- circuit
- pin
- pcb
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Inverter Devices (AREA)
Abstract
The application discloses a high-voltage power unit and a high-voltage frequency converter, which comprise a power plate, a capacitor plate and a control plate which are mutually connected through a copper bar or a PCB terminal; wherein the power board body includes: the PCB substrate is distributed with a plurality of circuit pin interfaces, a driving circuit and a power supply detection circuit; the integrated power module comprises a rectifying circuit, an inverter circuit and an integrated power module, wherein the rectifying circuit and the inverter circuit are closely distributed, and the integrated power module is welded on a PCB substrate through pins matched with circuit pin interfaces. Rectifier circuit and inverter circuit closely distribute in this application, the PCB base plate is in the same place through the pin welding that corresponds with integral type power module, power board and electric capacity board, the control panel passes through copper bar or PCB terminal interconnect, compared with the prior art, each part plate passes through reasonable structural layout and function distribution in this application, it is inseparable to connect when guaranteeing EMC and electric reliability, make the bulk volume reduce by a wide margin, thereby the cost of production, transportation and maintenance replacement all obviously reduces.
Description
Technical Field
The utility model relates to a high-voltage frequency conversion field, in particular to high-voltage power unit and high-voltage inverter.
Background
The high-voltage power unit is used as an important component of the high-voltage frequency converter, rectifies a three-phase alternating current input into a direct current voltage through a diode, and inverts through an Insulated Gate Bipolar Transistor (IGBT) to generate a single-phase alternating current output. The existing scheme adopts an independent rectifier bridge and two IGBT units when the purpose is realized, because the occupied space of each independent Circuit module is large, a driving power supply and the IGBT units are difficult to be arranged on the same PCB (Printed Circuit Board), and driving signals and detection signals are connected to the IGBT units through electric cables, so that the volume of the whole high-voltage power unit is large, and the production cost and the maintenance cost are high.
Therefore, how to provide a solution to the above technical problems is a problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a high voltage power unit and a high voltage inverter with integrated structure and significantly reduced volume and weight. The specific scheme is as follows:
a high-voltage power unit comprises a power board, a capacitor board and a control board which are mutually connected through copper bars or PCB terminals;
wherein the power board specifically includes:
the PCB substrate is distributed with a plurality of circuit pin interfaces, a driving circuit and a power supply detection circuit;
the integrated power module comprises a rectifying circuit, an inverter circuit and an integrated power module, wherein the rectifying circuit and the inverter circuit are tightly distributed, and the integrated power module is welded on the PCB substrate through pins matched with the pin interfaces of the circuits.
Preferably, the pin of the integrated power module includes:
the device comprises a three-phase input pin, a single-phase output pin, a direct current bus pin and a signal driving pin.
Preferably, the integrated power module further comprises a temperature-sensitive resistor, and the pin further comprises a temperature signal pin corresponding to the temperature-sensitive resistor.
Preferably, the PCB substrate is further provided with a temperature detection circuit.
Preferably, the signal driving pin and the temperature signal pin are located on a weak current side of the integrated power module, and the three-phase input pin, the single-phase output pin and the dc bus pin are located on a strong current side of the integrated power module.
Preferably, the high voltage power unit further includes:
and customizing the shapes and positions of the power board, the capacitor board and the control board to obtain the plastic shell.
Preferably, the power plate and the capacitor plate are located on the same plane and connected through the copper bar;
the control board is positioned above the power board and the capacitor board and is respectively connected with the power board and the capacitor board through the PCB terminal;
the PCB terminal specifically includes:
the PCB welding copper column is used for transmitting a power supply detection signal between the power board and the control board;
and the PCB plug-in terminal transmits a control signal between the power board and the control board and enables the power board to supply power to the control board.
Preferably, the power detection circuit specifically includes:
and inputting the input phase loss detection circuit and/or the bus voltage detection circuit.
Correspondingly, the utility model also discloses a high-voltage inverter, include as above arbitrary any high-voltage power unit.
Preferably, the high-voltage frequency converter comprises a plurality of high-voltage power units connected in series.
The utility model discloses a high-voltage power unit, which comprises a power board, a capacitance board and a control board which are mutually connected through copper bars or PCB terminals; wherein the power board specifically includes: the PCB substrate is distributed with a plurality of circuit pin interfaces, a driving circuit and a power supply detection circuit; the integrated power module comprises a rectifying circuit, an inverter circuit and an integrated power module, wherein the rectifying circuit and the inverter circuit are tightly distributed, and the integrated power module is welded on the PCB substrate through pins matched with the pin interfaces of the circuits. Rectifier circuit and inverter circuit closely distribute among the integral type power module in this application, PCB base plate is in the same place through the pin welding that corresponds with integral type power module in the power board, power board and electric capacity board, the control panel passes through copper bar or PCB terminal interconnect, independent with each module among the prior art, must compare through electric cable connection, each part plate is through reasonable structural layout and functional allocation in this application, it is inseparable to connect when guaranteeing EMC and electric reliability, make the bulk volume reduce by a wide margin, thereby production, the cost of transportation and maintenance replacement all obviously reduces.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a structural distribution diagram of a high voltage power unit according to an embodiment of the present invention;
fig. 2 is a pin distribution diagram of an integrated power module according to an embodiment of the present invention;
fig. 3 is a specific pin distribution diagram of an integrated power module according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The existing scheme adopts an independent rectifier bridge and two IGBT units, because each independent circuit module occupies a large space, a driving power supply and the IGBT units are difficult to be manufactured on the same PCB, and driving signals and detection signals are connected to the IGBT units through electric cables, so that the volume of the whole high-voltage power unit is large, and the production cost and the maintenance cost are high.
Rectifier circuit and inverter circuit closely distribute among the integral type power module in this application, PCB base plate is in the same place through the pin welding that corresponds with integral type power module in the power board, power board and electric capacity board, the control panel passes through copper bar or PCB terminal interconnect, independent with each module among the prior art, must compare through electric cable connection, each part plate is through reasonable structural layout and functional allocation in this application, it is inseparable to connect when guaranteeing EMC and electric reliability, make the bulk volume reduce by a wide margin, thereby production, the cost of transportation and maintenance replacement all obviously reduces.
The embodiment of the utility model discloses a high-voltage power unit, which is shown in figure 1 and comprises a power board 1, a capacitance board 2 and a control board 3 which are connected with each other through copper bars or PCB terminals;
wherein the power board 1 specifically includes:
the PCB substrate is distributed with a plurality of circuit pin interfaces, a driving circuit and a power supply detection circuit;
the integrated power module comprises a rectifying circuit, an inverter circuit and an integrated power module, wherein the rectifying circuit and the inverter circuit are tightly distributed, and the integrated power module is welded on the PCB substrate through pins matched with the pin interfaces of the circuits.
On the PCB substrate, the circuit pin interface mainly comprises a three-phase input interface, a single-phase output interface and a circuit pin interface which is matched with the pin of the integrated power module of the whole power board 1; the driving circuit is a generating circuit aiming at a driving signal of a rectifying circuit and/or an inverter circuit in the integrated power module; the power detection circuit specifically includes: and inputting the input phase loss detection circuit and/or the bus voltage detection circuit.
Specifically, the power detection circuit mainly converts the three-phase input voltage and the bus voltage from strong current to weak current signals, then forwards the weak current signals to the control board 3, and the control board 3 further determines whether the weak current signals are normal or not, so that the position of the power detection circuit is usually set between the circuit pin interface and the control board. It can be understood that the PCB substrate includes, in addition to the circuit pin interface, the driving circuit, and the power detection circuit distributed thereon, a power circuit distributed near the driving circuit and providing power to each component, and a plurality of transmission lines for electrical signals generated by each circuit and the integrated power module, so as to replace electrical cables to complete strong and weak current line transmission. Signal transmission on the whole high voltage power unit is connected the realization by copper bar, PCB terminal and PCB base plate jointly, compares the electric cable among the prior art, and the distribution of each module is more inseparable in this embodiment, and electric signal's transfer path is shorter to the interference loss of signal is less.
In the integral type power module, rectifier circuit generally includes 6 rectifier diodes, and inverter circuit generally includes 4 IGBT pipes, and three-phase AC input is the direct current through 6 diode commutations, produces single phase AC output through 4 IGBT pipe invertions again.
It can be understood that, in the present embodiment, the power board is customized by the applicant, and is mainly embodied in three aspects, that is, a rectifying circuit and an inverter circuit are implemented by using an element with a small volume and a good electrical performance; the internal electrical layout and wiring of the integrated power module and the PCB substrate are reasonable in design, and particularly the integrated power module ensures that the rectifying circuit and the inverter circuit are closely distributed and can meet the safety regulation requirement; thirdly, the integrated power module is soldered to the PCB substrate through adaptive pins, and it should be noted that the pins in this embodiment are not randomly arranged, and the position design of the pins is related to the internal electrical layout and wiring of the integrated power module and the distribution of each circuit on the PCB substrate, so that it is required to ensure that strong current and weak current on the whole power board do not intersect with each other, three-phase input and single-phase output do not intersect with each other, the wiring layout meets the safety requirements, and the integrated power module passes the EMC (ElectroMagnetic Compatibility) and reliability test.
It can be understood that, in this embodiment, the power board 1, the capacitor board 2 and the control board 3 are connected to each other through the copper bar or the PCB terminal, which not only plays a supporting role, but also transmits signals, the relative positions of the power board 1, the capacitor board 2 and the control board 3 need to be set in consideration of the mutual electrical influence, so as to meet the safety regulation requirement and pass the EMC and reliability test, the relative positions can be set with reference to fig. 1, and the power board 1 and the capacitor board 2 are located on the same plane and connected through the copper bar; the control board 3 is positioned above the power board 1 and the capacitor board 2 and is respectively connected with the power board 1 and the capacitor board 2 through the PCB terminal; wherein the PCB terminal specifically includes: the PCB welding copper column transmits power detection signals between the power board 1 and the control board 3; and the PCB plug-in terminal transmits a control signal between the power board 1 and the control board 3 and enables the power board 1 to supply power to the control board 3.
Of course, besides the arrangement of the relative positions in fig. 1, other position distributions can be designed, as long as the safety requirements can be met, and the position distribution is not limited to the position arrangement in fig. 1.
Further, the high voltage power unit may further include:
and the plastic shell is obtained by customizing according to the shapes and the positions of the power board 1, the capacitance board 2 and the control board 3.
It can be understood that the protective casing commonly used in the prior art is a metal casing, and the plastic casing used in this embodiment has lower material cost and greatly reduced mass, thereby reducing the difficulty of transporting and replacing the high-voltage power unit, moreover, the plastic housing of the present embodiment is obtained according to the shapes and positions of the power board 1, the capacitor board 2 and the control board 3, and further fits the overall shape of the high voltage power unit in the present embodiment, so that the overall volume of the high voltage power unit is smaller, meanwhile, different plastic components can be selected, the thicknesses of different positions can be adjusted, the module can be subjected to electric protection and physical protection in a targeted manner, because the processing raw material of the protective shell in the embodiment is plastic, the processing condition of the plastic is looser than that of metal due to the characteristics of the raw material, and the plastic can be easily processed into various specific shapes, so the protective shell in the embodiment has more excellent practical characteristics.
The embodiment of the utility model discloses a high-voltage power unit, which comprises a power board, a capacitor board and a control board which are mutually connected through copper bars or PCB terminals; wherein the power board specifically includes: the PCB substrate is distributed with a plurality of circuit pin interfaces, a driving circuit and a power supply detection circuit; the integrated power module comprises a rectifying circuit, an inverter circuit and an integrated power module, wherein the rectifying circuit and the inverter circuit are tightly distributed, and the integrated power module is welded on the PCB substrate through pins matched with the pin interfaces of the circuits. In the embodiment, the rectifying circuit and the inverter circuit in the integrated power module are tightly distributed, the PCB substrate in the power board and the integrated power module are welded together through corresponding pins, and the power board, the capacitor board and the control board are connected with each other through copper bars or PCB terminals; the PCB terminal and the copper bar replace an electric cable to complete electric transmission, and the metal shell of the protective shell is replaced by a plastic shell, so that the weight is greatly reduced; therefore, the cost of production, transportation, maintenance and replacement is obviously reduced in the embodiment.
The embodiment of the utility model discloses specific high-voltage power unit, for last embodiment, further explanation and optimization have been made to technical scheme to this embodiment. Specifically, referring to fig. 2, the pin of the integrated power module includes:
the device comprises a three-phase input pin, a single-phase output pin, a direct current bus pin and a signal driving pin.
Furthermore, the integrated power module further comprises a temperature-sensitive resistor, and the pin further comprises a temperature signal pin corresponding to the temperature-sensitive resistor.
Correspondingly, a temperature detection circuit is further specifically arranged on the PCB substrate. The temperature detection circuit is generally closely related to the drive circuit and the power supply circuit.
It can be understood that, in the prior art, each module is independent, and the physical position is far away from each other, so the temperature sensitive resistor that each module should correspond to and set up when the temperature detects, and rectifier circuit and inverter circuit's position is nearer in this embodiment, only need to set up a temperature sensitive resistor and can accomplish the temperature acquisition to whole integral type power module, because temperature sensitive resistor is located integral type power module inside simultaneously, therefore the precision of temperature detection also can obtain guaranteeing.
Furthermore, the pin distribution of the integrated power module considers that strong current and weak current do not intersect, three-phase input and single-phase output do not intersect, safety requirements are met, and EMC and reliability tests are passed. It should be noted that, in this embodiment, the weak current side or the strong current side is not limited to only one side of the integrated power module, but it is only suggested that the weak current pins and the strong current pins should be distributed on the weak current side and the strong current side, respectively, the strength of the weak current pins and the strength of the strong current pins should not be staggered, a proper distance should be kept between all the weak current pins on the weak current side and all the strong current pins on the strong current side, the specific pin positions are determined according to the shapes of the integrated power module and the PCB substrate and the number of the pins, for example, in the pin layout shown in fig. 3, the unidirectional output pins ACI and ACO and the three-phase input pins R and S are distributed on the same side, the driving circuits (driving 1-driving 4) and the temperature signal pin NTC are distributed on the opposite side, i.e., the weak current side, and the remaining DC bus pins DC + and DC-, and the three-phase input pin T are distributed on the remaining pins on both sides and the weak current side.
Correspondingly, the embodiment of the utility model provides a still disclose a high-voltage inverter, include as above arbitrary any one high-voltage power unit.
It can be understood that a plurality of high voltage power units are generally included in the high voltage inverter.
Specifically, the high-voltage power units are connected in series in the circuit of the high-voltage frequency converter.
For details of the high voltage power unit, reference may be made to the related description in the above embodiments, and details are not repeated here.
The high-voltage frequency converter in this embodiment has the same beneficial effects as the high-voltage power unit in the above embodiments, and details are not repeated here.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, article, or apparatus that comprises the element.
The above detailed descriptions of the high-voltage power unit and the high-voltage frequency converter provided by the present invention are provided, and the detailed examples are applied herein to explain the principle and the implementation of the present invention, and the descriptions of the above examples are only used to help understand the scheme and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (10)
1. A high-voltage power unit is characterized by comprising a power board, a capacitor board and a control board which are mutually connected through copper bars or PCB terminals;
wherein the power board specifically includes:
the PCB substrate is distributed with a plurality of circuit pin interfaces, a driving circuit and a power supply detection circuit;
the integrated power module comprises a rectifying circuit, an inverter circuit and an integrated power module, wherein the rectifying circuit and the inverter circuit are tightly distributed, and the integrated power module is welded on the PCB substrate through pins matched with the pin interfaces of the circuits.
2. The high voltage power unit of claim 1, wherein the pin of the unitary power module comprises:
the device comprises a three-phase input pin, a single-phase output pin, a direct current bus pin and a signal driving pin.
3. The high voltage power unit as claimed in claim 2, wherein the integrated power module further comprises a temperature sensitive resistor, and the pin further comprises a temperature signal pin corresponding to the temperature sensitive resistor.
4. The high-voltage power unit according to claim 3, wherein a temperature detection circuit is further disposed on the PCB substrate.
5. The high voltage power unit of claim 3,
the signal driving pin and the temperature signal pin are located on the weak current side of the integrated power module, and the three-phase input pin, the single-phase output pin and the direct-current bus pin are located on the strong current side of the integrated power module.
6. The high voltage power unit according to any one of claims 1 to 5, further comprising:
and customizing the shapes and positions of the power board, the capacitor board and the control board to obtain the plastic shell.
7. The high voltage power unit of claim 6,
the power plate and the capacitor plate are positioned on the same plane and are connected through the copper bar;
the control board is positioned above the power board and the capacitor board and is respectively connected with the power board and the capacitor board through the PCB terminal;
the PCB terminal specifically includes:
the PCB welding copper column is used for transmitting a power supply detection signal between the power board and the control board;
and the PCB plug-in terminal transmits a control signal between the power board and the control board and enables the power board to supply power to the control board.
8. The high-voltage power unit according to claim 7, wherein the power detection circuit specifically comprises:
and inputting the input phase loss detection circuit and/or the bus voltage detection circuit.
9. A high-voltage frequency converter, characterized by comprising a high-voltage power unit according to any one of claims 1 to 8.
10. The high-voltage inverter of claim 9, wherein the high-voltage inverter comprises a plurality of the high-voltage power units connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921620571.XU CN210724575U (en) | 2019-09-26 | 2019-09-26 | High-voltage power unit and high-voltage frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921620571.XU CN210724575U (en) | 2019-09-26 | 2019-09-26 | High-voltage power unit and high-voltage frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210724575U true CN210724575U (en) | 2020-06-09 |
Family
ID=70927390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921620571.XU Active CN210724575U (en) | 2019-09-26 | 2019-09-26 | High-voltage power unit and high-voltage frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210724575U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492758A (en) * | 2019-09-26 | 2019-11-22 | 苏州英威腾电力电子有限公司 | A kind of high-voltage power unit and high-voltage frequency converter |
-
2019
- 2019-09-26 CN CN201921620571.XU patent/CN210724575U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492758A (en) * | 2019-09-26 | 2019-11-22 | 苏州英威腾电力电子有限公司 | A kind of high-voltage power unit and high-voltage frequency converter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9019731B2 (en) | High-power medium-voltage drive power cell having power elements disposed on both sides of base plate | |
| US8232856B2 (en) | Connector and power transformer structure comprising the same | |
| CN110120736B (en) | Water-cooling power supply module | |
| CN103457482A (en) | Modular motor inverter arrangement with cooling sections forming inner duct ring capacitor on the outside | |
| CN210724575U (en) | High-voltage power unit and high-voltage frequency converter | |
| CN106099574B (en) | Subway permanent magnetism draws inversion chopped power module composite bus bar | |
| US11601047B2 (en) | Electrical control assembly and electrical device | |
| TW201729514A (en) | Circuit board module for induction type power supply system | |
| CN201656757U (en) | Multi-path input/output AC/DC power supply and signal wire filtering filter | |
| CN110492758A (en) | A kind of high-voltage power unit and high-voltage frequency converter | |
| RU2733535C1 (en) | Inverter device | |
| CN213305278U (en) | Power supply device | |
| US20220330415A1 (en) | System for driving power devices | |
| CN104052244B (en) | Power module | |
| SE527342C2 (en) | Signal coupling / decoupling device, system and methods | |
| CN207426331U (en) | A kind of Double-layer connector | |
| CN214480297U (en) | Frequency converter | |
| JP5516623B2 (en) | Power converter | |
| JP2005295672A (en) | Power supply | |
| CN217183183U (en) | Constant current source device for temperature rise test of alternating current and direct current complete switch cabinet | |
| CN211183422U (en) | Movable active multiple harmonic protector | |
| EP4131759A1 (en) | Highly integrated mosfet half-bridge power module for power converters | |
| CN216487875U (en) | Relay, UPS power supply and photovoltaic inversion system | |
| CN219107303U (en) | AC/DC wide voltage input power module | |
| CN113258789B (en) | Switching power supply circuit and electronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |