CN102931866A - Inverter assembly and inverter power supply - Google Patents
Inverter assembly and inverter power supply Download PDFInfo
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- CN102931866A CN102931866A CN2012104112577A CN201210411257A CN102931866A CN 102931866 A CN102931866 A CN 102931866A CN 2012104112577 A CN2012104112577 A CN 2012104112577A CN 201210411257 A CN201210411257 A CN 201210411257A CN 102931866 A CN102931866 A CN 102931866A
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Abstract
The invention provides an inverter assembly and an inverter power supply. The inverter assembly comprises a first tank body and a second tank body which are capable of shielding electromagnetic interference and are arranged in a stacking way; a cooler and a plurality of parallel connected H bridge inverter units are arranged in the first tank body, the H bridge inverter units are arranged on the cooler, and the cooler is arranged in the inner wall of the first tank body; and a drive circuit board and a control circuit board are arranged in the second tank body. According to the inverter assembly and the inverter power supply provided by the invention, the H bridge inverter unit is arranged in the first tank body capable of shielding electromagnetic interference, and the drive circuit board and the control circuit board are arranged in the second tank body, so that the electromagnetic interference of an external electromagnetic field to the H bridge inverter units, the drive circuit board and the control circuit board can be reduced; and the electromagnetic interference to the drive circuit board and the control circuit board can be reduced by shielding an electromagnetic interference signal generated by the H bridge inverter unit in the first tank body, so that the operation security of the inverter assembly can be guaranteed.
Description
Technical field
The present invention relates to electrical technology, relate in particular to a kind of inverter assembly and inverter.
Background technology
The power output of powerful inverter is tens of kilowatts of extremely number megawatts, and this inverter can be widely used in the fields such as induction heating, machine components heat treatment, Metal Melting and special welding of metal material.
Fig. 1 is the schematic diagram of existing inverter; As shown in Figure 1, existing powerful inverter comprises a plurality of coolers and a plurality of H bridge inversion unit 1, each inversion unit 1 is made of four semiconductor modules 12, and each inversion unit 1 and cooler are arranged on the mounting panel in the electrical control cubicles 10 with the discrete device mounting means.
Owing to also being provided with drive circuit board and control circuit board in the electrical control cubicles 10, the electromagnetic field that H bridge inversion unit 1 produces can produce interference to drive circuit board 2 and control circuit board 3, reduces the fail safe of inverter.
And, the mounting process of inverter is complicated, consistency is poor, can't satisfy each H bridge inversion unit 1 operating state symmetry, affect the current balance between the semiconductor module 12, increased simultaneously harmful distributed inductance, so that the larger spike burr of inversion waveform stack, reduced the reliability of inverter.
Summary of the invention
The invention provides a kind of inverter assembly and inverter, the inverter module that be used for to solve the prior art inverter is the large and relatively poor technological deficiency of inversion waveform to the electromagnetic interference of circuit board.
A kind of inverter assembly provided by the invention, comprise can shield electromagnetic interference the first casing and the second casing, described the first casing and the stacked setting of the second casing;
Be provided with the H bridge inversion unit of cooler and a plurality of parallel connections in described the first casing, described H bridge inversion unit is arranged on the described cooler, and described cooler is arranged on described the first cabinet wall;
Be provided with drive circuit board and control circuit board in described the second casing.
Aforesaid inverter assembly, preferably, described cooler comprises the first cooler and the second cooler, described the first cooler and the second cooler have the cooled plate of cooling water channel for inside;
The upper half-bridge of described a plurality of H bridge inversion units arranges along the even interval of described the first cooler length direction, and the lower half-bridge of described H bridge inversion unit arranges along the even interval of described the second cooler length direction.
Aforesaid inverter assembly, preferably, described a plurality of H bridge inversion units are arranged on a side of described the first cooler and the second cooler.
Aforesaid inverter assembly, preferably, described a plurality of H bridge inversion units are arranged on the both sides of described the first cooler and the second cooler.
Aforesaid inverter assembly, preferably, described inverter assembly also comprises anodal dc bus and negative pole dc bus; Described anodal dc bus and negative pole dc bus are arranged on described a plurality of H bridge inversion units both sides, and an end of described anodal dc bus and negative pole dc bus stretches out from described the first casing.
Aforesaid inverter assembly, preferably, described anodal dc bus is connected the main direct current row of slab and a plurality of minutes direct current rows that are connected with described main busbar with the negative pole dc bus;
Described minute bus-bar is T shape structure, and each minute, direct current row was connected with the direct-flow input end of described H bridge inversion unit.
Aforesaid inverter assembly, preferably, described inversion assembly also comprises the first ac bus and the second ac bus, described the first ac bus and the second ac bus are symmetricly set on up and down between the half-bridge of described H bridge inversion unit, are provided with insulation board between described the first ac bus and the second ac bus.
Aforesaid inverter assembly, preferably, described the first ac bus and the second ac bus include main the exchanges row of slab and the interchange that divides of a plurality of slab perpendicular to the described main row of interchange is arranged;
The described main row of interchange is arranged on up and down between the half-bridge of described H bridge inversion unit, and described minute row of interchange is connected with the ac output end of the up and down half-bridge of described H bridge inversion unit respectively, and the described main row of interchange stretches out from the side of described the first casing.
Aforesaid inverter assembly, preferably, the cooling water pipe of described cooler stretches out from the side of described the first casing.
Aforesaid inverter assembly, preferably, described the first casing and the second casing are rectangular hollow structure, described the second casing is arranged on described the first casing one side.
The present invention also provides a kind of inverter, comprises electrical control cubicles, also comprises the inverter assembly that at least one the invention described above content provides, and described inverter assembly is plugged in the slot of described electrical control cubicles.
Inverter assembly provided by the invention and inverter, with a plurality of H bridge inversion units be arranged on can the first casing of shield electromagnetic interference in, drive circuit board and control circuit board are arranged in the second casing, can reduce external electromagnetic field to the electromagnetic interference of H bridge inversion unit, drive circuit board and control circuit board, and the electromagnetic shielding that H bridge inversion unit can be produced is in the first casing, reduce the electromagnetic interference to drive circuit board and control circuit board, guarantee the security of operation of inverter assembly.
Description of drawings
Fig. 1 is the schematic diagram of existing inverter;
The schematic diagram of the inverter assembly that Fig. 2 provides for first embodiment of the invention;
The inverter assembly decomposing schematic representation that Fig. 3 provides for first embodiment of the invention;
The schematic diagram of the inverter assembly that Fig. 4 provides for first embodiment of the invention;
The schematic diagram of the inverter assembly that Fig. 5 provides for second embodiment of the invention;
The end view of the inverter assembly that Fig. 6 provides for second embodiment of the invention;
The schematic diagram of the inverter that Fig. 7 provides for third embodiment of the invention.
Embodiment
With reference to figure 2 ~ 4, the schematic diagram of the inverter assembly that Fig. 2 provides for first embodiment of the invention; The inverter assembly decomposing schematic representation that Fig. 3 provides for first embodiment of the invention; The schematic diagram of the inverter assembly that Fig. 4 provides for first embodiment of the invention.
Shown in Fig. 2 ~ 4, the inverter assembly that the present embodiment provides comprise can shield electromagnetic interference the first casing 101 and the second casing 102, the first casing 101 and the 102 stacked settings of the second casing, the first casing 101 and the second casing 102 can be preferably rectangular hollow structure, the second casing 102 can be arranged on top or the bottom of the first casing 101, the first casing 101 be connected casing 102 and can adopt welding or the modes such as bolt connection to be connected and fixed.
Be provided with the H bridge inversion unit 1 of cooler and a plurality of parallel connections in the first casing 101, H bridge inversion unit 1 is arranged on the cooler, and cooler is arranged on the first casing 101 inwalls, is provided with drive circuit board 2 and control circuit board 3 in the second casing 102.The quantity of cooler can be one, and the cooling water pipe of cooler can stretch out from the side of the first casing 101.Can connect parts in the first casing 101 and the second casing 102 by control signal wire.
Particularly, in the present embodiment, semiconductor module 12 in the H bridge inversion unit 1 can be different types of semiconductor module, for example, can be insulated gate bipolar transistor (Insulated Gate BipolarTransistor, be called for short IGBT) power model, also can be field-effect transistor (Metal-Oxide-Semiconductor Field-Effect Transistor, be called for short MOSFET) power model, the top of H bridge inversion unit 1 is divided into half-bridge, upper slab bridge is positive half-bridge, and the bottom of H bridge inversion unit 1 is divided into lower half-bridge, and lower half-bridge is negative half-bridge.
The inverter assembly that the present embodiment provides, with a plurality of H bridge inversion units 1 be arranged on can the first casing 101 of shield electromagnetic interference in, drive circuit board 2 and control circuit board 3 are arranged in the second casing 102, can reduce external electromagnetic field to the electromagnetic interference of H bridge inversion unit 1, drive circuit board 2 and control circuit board 3, and the electromagnetic shielding that H bridge inversion unit 1 can be produced is in the first casing 101, reduce the electromagnetic interference to drive circuit board 2 and control circuit board 3, guarantee the security of operation of inverter assembly.
On the basis of above-described embodiment, further, the quantity of cooler can be two, comprise the first cooler 111 and the second cooler 112, the first cooler 111 and the second cooler 112 have the cooled plate of cooling water channel for inside, the first cooler 111 and the second cooler 112 can be Rectangular Plate Structure, can certainly other platy structures.The cooling water pipe 113 of the first cooler 111 and the second cooler 112 stretches out from the side of the first casing 101, cooling water pipe 113 is for delivery of coolant, the heat that a plurality of semiconductor modules 12 of H bridge inversion unit 1 produce when working, the water pipe 113 interior coolants that are cooled are taken away, can reduce the temperature of semiconductor module 12, improve useful life.
The upper half-bridge of H bridge inversion unit 1 arranges along the even interval of the first cooler 111 length directions, and the lower half-bridge of H bridge inversion unit 1 arranges along the even interval of the second cooler 112 length directions.A plurality of H bridge inversion units 1 can be arranged on a side of the first cooler 111 and the second cooler 112.Because with a plurality of H bridge inversion units 1 concentrated being symmetricly set on the first cooler 111 and the second cooler 112, can improve the operating state symmetry of the semiconductor module 12 of H bridge inversion unit 1, so that the electric current between the semiconductor module 12 is more balanced, thereby can reduce harmful distributed inductance, reduce spike burr in the inversion waveform, improve the reliability of inverter assembly.
On the basis of above-described embodiment, further, the inversion assembly also comprises anodal dc bus 12 and negative pole dc bus 14, anodal dc bus 13 and negative pole dc bus 14 arrange H bridge inversion unit 1 both sides, and an end of anodal dc bus 13 and negative pole dc bus 14 stretches out (shown in Figure 2) from the first casing 101.
Anodal dc bus 13 is connected the main direct current row 131 who includes slab and a plurality of minutes direct currents that are connected with main busbar 131 and is arranged 132 with the negative pole dc bus; Minute bus-bar 132 be T shape structure, each minute direct current arrange 132 and be connected with the direct-flow input end of H bridge inversion unit 1.
H bridge inversion unit 1 comprises the first ac bus 15 and the second ac bus 16, the first ac bus 15 and the second ac bus 16 are symmetricly set on up and down between the half-bridge of H bridge inversion unit 1, are provided with insulation board 17 between the first ac bus 15 and the second ac bus 16.The first ac bus 15 and the second ac bus 16 are stacked together, and insulation board 17 is folded between the first ac bus 15 and the second ac bus 16, with the first ac bus 15 and the second ac bus 16 electrical isolation.
Particularly, the first ac bus 15 and the second ac bus 16 main the exchanges row 151 that includes slab arranges 152 with the interchange that divides of a plurality of slab perpendicular to the main row of exchanging 151.The main row of interchange 151 is arranged on up and down between the half-bridge of H bridge inversion unit 1, minute exchange row 152 and is connected with the ac output end of the up and down half-bridge of H bridge inversion unit 1 respectively, the row of interchange 151 that leads of the first ac bus 15 and the second ac bus 16 stretches out from the side of the first casing 101.
The inverter assembly that the present embodiment provides because the first ac bus 15 that stacks and the second ac bus 16 are pressed close to installation, and are insulated plate 17 electrical isolation, thereby can reduce electromagnetic radiation, reduces the interference to inverter assembly.
With reference to figure 5 and Fig. 6, the schematic diagram of the inverter assembly that Fig. 5 provides for second embodiment of the invention; The end view of the inverter assembly that Fig. 6 provides for second embodiment of the invention.
As illustrated in Figures 5 and 6, on the basis of above-described embodiment, a plurality of H bridge inversion units 1 also can be arranged on the both sides of the first cooler 111 and the second cooler 112.Particularly, a plurality of H bridge inversion units 1 can arrange symmetrically along two sides of the first cooler 111 and the second cooler 112, each H bridge inversion unit 1 has four power models 12, two power models 12 are positioned at the both sides of the first cooler 111, and two other power model is positioned at the both sides of the second cooler 112.Anodal dc bus 13 and negative pole dc bus 14 can stretch out from the sidewall of the first casing 101, and the first dc bus 15 and the second dc bus 16 also stretch out from the sidewall of the first casing 101.
The inverter assembly that the present embodiment provides is provided with a plurality of H bridge inversion units 1 in the both sides of the first cooler 111 and the second cooler 112, when guaranteeing input power, so that the inverter assembly structure is compacter.
With reference to figure 7, the schematic diagram of the inverter that Fig. 7 provides for third embodiment of the invention.
As shown in Figure 7, the inverter that the present embodiment provides comprises electrical control cubicles 10, also comprises the inverter assembly 20 that at least one above-described embodiment provides, and inverter assembly 20 is plugged in the slot of electrical control cubicles 10.In the present embodiment, the quantity of inverter assembly 20 is three, and inverter assembly 20 can be made drawer appliance, directly is plugged in the slot of electrical control cubicles 10, and the quantity of inverter assembly 20 also can be determined according to inverter power demand size.
The inverter that the present embodiment provides, with H bridge inversion unit 1 be arranged on can the first casing 101 of shield electromagnetic interference in, drive circuit board 2 and control circuit board 3 are arranged in the second casing 102, can reduce external electromagnetic field to H bridge inversion unit 1, drive circuit board 2 and control circuit board 3, and the electromagnetic shielding that H bridge inversion unit 1 can be produced is in the first casing 101, reduce the electromagnetic interference to drive circuit board 2 and control circuit board 3, guarantee the security of operation of inverter assembly 20.
In addition, inverter assembly 20 can be used as separate unit or standardized component, is convenient to assembling and the maintenance of inverter, and inverter assembly 20 can be the drawer type assembly, so that the inverter compact conformation is easy to realize 20 parallel connections of multiple inverter assembly.
It should be noted that at last: above each embodiment is not intended to limit only in order to technical scheme of the present invention to be described; Although with reference to aforementioned each embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (11)
1. an inverter assembly is characterized in that, comprise can shield electromagnetic interference the first casing and the second casing, described the first casing and the stacked setting of the second casing;
Be provided with the H bridge inversion unit of cooler and a plurality of parallel connections in described the first casing, described H bridge inversion unit is arranged on the described cooler, and described cooler is arranged on described the first cabinet wall;
Be provided with drive circuit board and control circuit board in described the second casing.
2. inverter assembly according to claim 1 is characterized in that, described cooler comprises the first cooler and the second cooler, and described the first cooler and the second cooler have the cooled plate of cooling water channel for inside;
The upper half-bridge of described a plurality of H bridge inversion units arranges along the even interval of described the first cooler length direction, and the lower half-bridge of described H bridge inversion unit arranges along the even interval of described the second cooler length direction.
3. inverter assembly according to claim 2 is characterized in that, described a plurality of H bridge inversion units are arranged on a side of described the first cooler and the second cooler.
4. inverter assembly according to claim 2 is characterized in that, described a plurality of H bridge inversion units are arranged on the both sides of described the first cooler and the second cooler.
5. each described inverter assembly is characterized in that according to claim 1 ~ 4, and described inverter assembly also comprises anodal dc bus and negative pole dc bus; Described anodal dc bus and negative pole dc bus are arranged on described a plurality of H bridge inversion units both sides, and an end of described anodal dc bus and negative pole dc bus stretches out from described the first casing.
6. inverter assembly according to claim 5 is characterized in that, described anodal dc bus is connected the main direct current row of slab and a plurality of minutes direct current rows that are connected with described main busbar with the negative pole dc bus;
Described minute bus-bar is T shape structure, and each minute, direct current row was connected with the direct-flow input end of described H bridge inversion unit.
7. each described inverter assembly according to claim 1 ~ 4, it is characterized in that, described inverter assembly also comprises the first ac bus and the second ac bus, described the first ac bus and the second ac bus are symmetricly set on up and down between the half-bridge of described H bridge inversion unit, are provided with insulation board between described the first ac bus and the second ac bus.
8. inverter assembly according to claim 7 is characterized in that, described the first ac bus and the second ac bus include main the exchanges row of slab and the interchange that divides of a plurality of slab perpendicular to the described main row of interchange is arranged;
The described main row of interchange is arranged on up and down between the half-bridge of described H bridge inversion unit, and described minute row of interchange is connected with the ac output end of the up and down half-bridge of described H bridge inversion unit respectively, and the described main row of interchange stretches out from the side of described the first casing.
9. each described inverter assembly is characterized in that according to claim 1 ~ 4, and the cooling water pipe of described cooler stretches out from the side of described the first casing.
10. each described inverter assembly is characterized in that according to claim 1 ~ 4, and described the first casing and the second casing are rectangular hollow structure, and described the second casing is arranged on described the first casing one side.
11. an inverter comprises electrical control cubicles, it is characterized in that, also comprises each described inverter assembly of at least one claim 1 ~ 10, described inverter assembly is plugged in the slot of described electrical control cubicles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210411257.7A CN102931866B (en) | 2012-10-24 | 2012-10-24 | Inverter assembly and inverter power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210411257.7A CN102931866B (en) | 2012-10-24 | 2012-10-24 | Inverter assembly and inverter power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102931866A true CN102931866A (en) | 2013-02-13 |
| CN102931866B CN102931866B (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210411257.7A Expired - Fee Related CN102931866B (en) | 2012-10-24 | 2012-10-24 | Inverter assembly and inverter power supply |
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| Country | Link |
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| CN (1) | CN102931866B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151939A (en) * | 2013-03-28 | 2013-06-12 | 华北电力大学 | Modular design structure of inverter |
| CN104796009A (en) * | 2015-04-29 | 2015-07-22 | 永济新时速电机电器有限责任公司 | Bilaterally-symmetric high-capacity rectifying power unit |
| CN106385181A (en) * | 2016-09-21 | 2017-02-08 | 国电南瑞科技股份有限公司 | Series IGBT (Insulated Gate Bipolar Transistor) module device-based H-bridge assembly |
| CN106685241A (en) * | 2017-01-19 | 2017-05-17 | 河北博宏感应技术股份有限公司 | Novel H-bridge inverter |
| CN110365100A (en) * | 2019-06-27 | 2019-10-22 | 广东电网有限责任公司佛山供电局 | A kind of power supply conversion of more power supply continuous-current plants and its compatibility method |
| CN111245230A (en) * | 2018-11-29 | 2020-06-05 | 致茂电子(苏州)有限公司 | Half-bridge circuit assembly and switching type power supply |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20070109823A1 (en) * | 2005-05-17 | 2007-05-17 | Mukul Rastogi | Multi-level active filter |
| CN102104332A (en) * | 2009-12-18 | 2011-06-22 | 保定红星高频设备有限公司 | Integrated high-power chopper and high-frequency switch power supply |
| CN202142867U (en) * | 2011-07-21 | 2012-02-08 | 思源清能电气电子有限公司 | Power unit structure |
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2012
- 2012-10-24 CN CN201210411257.7A patent/CN102931866B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070109823A1 (en) * | 2005-05-17 | 2007-05-17 | Mukul Rastogi | Multi-level active filter |
| CN102104332A (en) * | 2009-12-18 | 2011-06-22 | 保定红星高频设备有限公司 | Integrated high-power chopper and high-frequency switch power supply |
| CN202142867U (en) * | 2011-07-21 | 2012-02-08 | 思源清能电气电子有限公司 | Power unit structure |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151939A (en) * | 2013-03-28 | 2013-06-12 | 华北电力大学 | Modular design structure of inverter |
| CN104796009A (en) * | 2015-04-29 | 2015-07-22 | 永济新时速电机电器有限责任公司 | Bilaterally-symmetric high-capacity rectifying power unit |
| CN106385181A (en) * | 2016-09-21 | 2017-02-08 | 国电南瑞科技股份有限公司 | Series IGBT (Insulated Gate Bipolar Transistor) module device-based H-bridge assembly |
| CN106685241A (en) * | 2017-01-19 | 2017-05-17 | 河北博宏感应技术股份有限公司 | Novel H-bridge inverter |
| CN106685241B (en) * | 2017-01-19 | 2023-04-07 | 河北博宏感应技术股份有限公司 | Novel H-bridge inverter |
| CN111245230A (en) * | 2018-11-29 | 2020-06-05 | 致茂电子(苏州)有限公司 | Half-bridge circuit assembly and switching type power supply |
| CN110365100A (en) * | 2019-06-27 | 2019-10-22 | 广东电网有限责任公司佛山供电局 | A kind of power supply conversion of more power supply continuous-current plants and its compatibility method |
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| Publication number | Publication date |
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| CN102931866B (en) | 2015-06-17 |
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Granted publication date: 20150617 Termination date: 20171024 |