CN209329945U - A kind of stack bus bar suitable for power module series connection test - Google Patents
A kind of stack bus bar suitable for power module series connection test Download PDFInfo
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- CN209329945U CN209329945U CN201821891786.0U CN201821891786U CN209329945U CN 209329945 U CN209329945 U CN 209329945U CN 201821891786 U CN201821891786 U CN 201821891786U CN 209329945 U CN209329945 U CN 209329945U
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- power module
- output end
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- bar
- cathode output
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- 238000012360 testing method Methods 0.000 title claims abstract description 24
- 239000003990 capacitor Substances 0.000 claims abstract description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 239000010949 copper Substances 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 10
- 238000005259 measurement Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000012545 processing Methods 0.000 abstract description 2
- 230000003071 parasitic effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000005945 translocation Effects 0.000 description 1
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- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The utility model discloses a kind of stack bus bar suitable for power module series connection test, including exchange plate, capacitor bus-bar, negative plates.Exchanging plate includes four power module mounting holes, and the cathode output end of capacitor bus-bar includes two power module mounting holes, and the cathode output end of negative plate includes two power module mounting holes.Exchange plate be independent copper sheet, can flexible shift position, cooperate above-mentioned mounting hole and use different connection types, meet two power modules series connection test and single power module dynamic test.The flexible connection type of the utility model expands the use scope of stack bus bar, shortens the manufacture process-cycle, reduces manufacture processing cost.Meanwhile stack bus bar can effectively reduce power module test circuit parasitic inductance, improve measurement accuracy.
Description
Technical field
The utility model belongs to stack bus bar technical field, and in particular to a kind of suitable for the folded of power module series connection test
Layer busbar.
Background technique
With the development of power electronics, high voltage, high-power applications demand are more and more extensive, and single power module is difficult to full
Afc voltage and power grade requirement.Meanwhile in the case where voltage reaches a certain level, the reliability of the higher power module of voltage class
Lower and production cost is doubled and redoubled, and safety and economy are lower.It is improved in engineering using the series connection of power module at present
The voltage class and power grade of power electronic equipment, reliability are most important.
In practical application in industry, in order to guarantee the reliability service of series power module, the usually volume in selection power module
According to twice of actual motion when definite value, there is the phenomenon that low load with strong power.It is utilized to improve the capacity of series power module
Rate needs to be applied to characteristic and is tested, further grasp its application characteristic, assesses to run nargin to it.
In current mature power module dynamic testing scheme, it can only realize and a power module is measured, and
Power module series connection dynamic characteristic can not be assessed.For there is the measurement of power block coupled in series demand, need to open pressure again
Mold, manufacture processing cost is high, and the manufacture process-cycle is long.
Utility model content
In view of above-mentioned, the utility model provides a kind of stack bus bar suitable for power module series connection test, the lamination
Busbar can satisfy the measurement of two power module series characteristics, while also can satisfy the survey of single power module dynamic characteristic
Amount.Save the manufacturing cost for opening compression mould again and process-cycle.Stack bus bar provides low inductor commutation circuit, improves survey
The accuracy of amount.
A kind of stack bus bar suitable for power module series connection test, consists of three parts, including has exchange connecting pin
Exchange plate, with cathode output end capacitor bus-bar, with cathode output end negative plate；Wherein, the exchange plate includes
Four power module mounting holes and an exchange delivery outlet, the cathode output end and cathode output end separately include two power
Module mounting hole；The negative plate is connected on the capacitor bus-bar by current sensor and fastener；The anode output
The position of opening of all four power module mounting holes exchanges four power module installations on plate with described on end, cathode output end
Hole corresponds.Further, the capacitor bus-bar includes five layer laminates, from top to bottom successively are as follows: lower layer's insulation board, with just
Lower layer's conductor plate of pole input terminal, cathode output end, intermediate insulation plate, the top conductor plate with negative electrode input terminal, upper layer
Insulation board.
Further, the exchange plate is exposed copper bar, and the negative plate is exposed copper bar, and the capacitor bus-bar includes five
Layer laminate, from top to bottom successively are as follows: lower layer's insulation board, lower layer's conductor plate with electrode input end, cathode output end are intermediate exhausted
Listrium, the top conductor plate with negative electrode input terminal, upper layer insulation board.
It is independent copper sheet for exchanging plate, can is that single test is either connected according to power module test condition
Test, flexible shift position, and use different connection types.When test condition is single power module test, power mould
The ac electrode of block is connected to two power module mounting holes on the inside of exchange plate；When test condition is two power module series connection
When, the cathode of upper bridge arm power module is connected to the left side power module mounting hole of exchange plate, the anode of lower bridge arm power module
It is connected to the right side power module mounting hole of exchange plate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of specific embodiment of the present utility model.
Fig. 2 is the top view of alternating current bus bar in Fig. 1.
Fig. 3 (a) is the top view of capacitor bus-bar in Fig. 1.
Fig. 3 (b) is the cross-sectional view of capacitor bus-bar in Fig. 1.
Fig. 4 is the top view of negative plate in Fig. 1.
Fig. 5 is the connection schematic diagram that 1 specific embodiment of application drawing is applied to two power module series connection measurements.
Fig. 6 is the connection schematic diagram that 1 specific embodiment of application drawing is applied to the measurement of single power module.
Specific embodiment
In order to more specifically describe the utility model, with reference to the accompanying drawing and specific embodiment is to the utility model
Technical solution is described in detail.
As shown in Figure 1, present embodiment discloses a kind of stack bus bar suitable for power module series connection test, including
Capacitor bus-bar 1, negative plate 2 exchange plate 3.
Exchange plate 3 shown in Fig. 1 as shown in Fig. 2, it includes four power module mounting holes and an exchange delivery outlet 301,
Mounting hole 303 and mounting hole 304 are used for connection when single power module test, and mounting hole 302 and mounting hole 305 are used for two
Connection when power module series connection test；Exchange delivery outlet 301 with load inductance for connecting.
Capacitor bus-bar 1 includes five layer laminates, and as shown in Fig. 3 (b), sectional view is formed by five layers, comprising: upper layer insulation board
101, top conductor plate 102 with negative electrode input terminal, intermediate insulation plate 103, with electrode input end, cathode output end
Lower layer's conductor plate 104, lower layer's insulation board 105.As shown in Fig. 3 (a), the negative electrode input terminal 107 of 102 bands of top conductor plate,
The electrode input end 106 of 104 bands of lower layer's conductor plate passes through input terminal to thin-film capacitor for connecting higher level's DC power supply, electric energy
Charging.Cathode output end includes two power module mounting holes 109,110.Wherein, power module mounting hole 110 is used for single function
Connection when rate module testing, connection when mounting hole 109 is for two power module series connection tests.
Negative plate 2 shown in Fig. 1 is as shown in figure 4, its cathode output end includes two power module mounting holes 202,203.Its
In, power module mounting hole 203 is used for connection when single power module test, and mounting hole 202 is used for two power module strings
Connection when translocation tries.
When present embodiment is applied to two power module series connection measurements, connection schematic diagram is as shown in figure 5, capacitor
Busbar 1 is fixed together by coaxial resistance 4 and negative plate 2,1 cathode output end mounting hole 109 of capacitor bus-bar and upper bridge
The connection of 5 positive electrode of arm power module, exchange plate mounting hole 302 are connected with upper 5 negative electrode of bridge arm power module, exchange plate mounting hole
305 connect with 5 positive electrode of lower bridge arm power module, and 2 cathode output end mounting hole 202 of negative plate and lower bridge arm power module 5 are negative
Electrode connection.Wherein, the cathode of coaxial resistance 4 is connected with the coaxial resistance mounting hole 201 of negative plate 2 by fastener, coaxially
The anode of resistance 4 is connected with the coaxial resistance mounting hole 108 of capacitor bus-bar 1 by fastener.
When present embodiment is applied to the measurement of single power module, connection schematic diagram is as shown in fig. 6, capacitor bus-bar
1 is fixed together by coaxial resistance 4 and negative plate 2,1 cathode output end mounting hole 110 of capacitor bus-bar and power module 5
Positive electrode connection, 2 cathode output end mounting hole 203 of negative plate are connected with 5 negative electrode of power module, exchange plate mounting hole 303, peace
Dress hole 304 exchanges end connection with power module 5.Wherein, the coaxial resistance mounting hole 201 of the cathode of coaxial resistance 4 and negative plate 2
It is connected by fastener, the anode of coaxial resistance 4 is connected with the coaxial resistance mounting hole 108 of capacitor bus-bar 1 by fastener.
The above-mentioned description to embodiment is for that can understand and apply this practical convenient for those skilled in the art
It is novel.Person skilled in the art obviously easily can make various modifications to above-described embodiment, and illustrating herein
General Principle be applied in other embodiments without having to go through creative labor.Therefore, the utility model is not limited to above-mentioned
Embodiment, those skilled in the art's announcement according to the present utility model, the improvement made for the utility model and modification are all answered
This is within the protection scope of the utility model.
Claims (2)
1. a kind of stack bus bar suitable for power module series connection test, it is characterised in that: consist of three parts, including have and hand over
The exchange plate for flowing connecting pin, the capacitor bus-bar with cathode output end, the negative plate with cathode output end；Wherein, the friendship
Flowing plate includes four power module mounting holes and an exchange delivery outlet, and the cathode output end and cathode output end separately include
Two power module mounting holes；The negative plate is connected on the capacitor bus-bar by current sensor and fastener；It is described
The position of opening of all four power module mounting holes exchanges four power on plate with described on cathode output end, cathode output end
Module mounting hole corresponds.
2. a kind of stack bus bar suitable for power module series connection test according to claim 1, it is characterised in that: described
Exchange plate is exposed copper bar, and the negative plate is exposed copper bar, and the capacitor bus-bar includes five layer laminates, from top to bottom successively
Are as follows: lower layer's insulation board, lower layer's conductor plate with electrode input end, cathode output end, intermediate insulation plate are inputted with negative electrode
The top conductor plate at end, upper layer insulation board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821891786.0U CN209329945U (en) | 2018-11-16 | 2018-11-16 | A kind of stack bus bar suitable for power module series connection test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821891786.0U CN209329945U (en) | 2018-11-16 | 2018-11-16 | A kind of stack bus bar suitable for power module series connection test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209329945U true CN209329945U (en) | 2019-08-30 |
Family
ID=67710512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821891786.0U Active CN209329945U (en) | 2018-11-16 | 2018-11-16 | A kind of stack bus bar suitable for power module series connection test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209329945U (en) |
-
2018
- 2018-11-16 CN CN201821891786.0U patent/CN209329945U/en active Active
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