CN104332787B - AC copper-line - Google Patents
AC copper-line Download PDFInfo
- Publication number
- CN104332787B CN104332787B CN201410048961.XA CN201410048961A CN104332787B CN 104332787 B CN104332787 B CN 104332787B CN 201410048961 A CN201410048961 A CN 201410048961A CN 104332787 B CN104332787 B CN 104332787B
- Authority
- CN
- China
- Prior art keywords
- length
- oval hole
- millimeters
- hole
- copper
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
- H01R25/16—Rails or bus-bars provided with a plurality of discrete connecting locations for counterparts
Abstract
The invention discloses a kind of AC copper-line, one end plate is formed one first oval hole and two the second oval holes；First oval hole is centrally located on the axis of described end plate, it is 23.5 millimeters that straight flange is perpendicular to axis and the edge to described end plate, the arc diameter in the first oval hole is 5 to 6 millimeters, and the length range in the first oval hole is that one first length deducts 4 millimeters to described first length；Two the second oval holes lay respectively at the both sides of described axis, and the edge of the straight flange in the second oval hole to described end plate is 17 millimeters, a diameter of 5 to 6 millimeters of the circular arc in the second oval hole, a length of 16.5 to 19.5 millimeters of the second oval hole.The present invention compensate for the deficiency that the impedance of existing AC copper-line parallel IGBT module ac output end is inconsistent, redistribution current path by the way of borehole on an end plate of AC copper-line, solve the inconsistent uneven flow phenomenon brought of impedance, meet industrial requirement.
Description
Technical field
The present invention relates to a kind of AC copper-line.
Background technology
Along with the fast development of Power Electronic Technique, converter forward Large Copacity develops.At present frequently with many
Individual IGBT(insulated gate bipolar transistor) module is directly parallel on AC copper-line to improve converter
Power grade.But multiple IGBT module parallel exists electric current distribution uneven phenomenon, serious restriction is big
The development of power inverter.Uneven reason one side and the discordance of the parameter of IGBT module own have
Closing, another aspect is asynchronous relevant with driving signal, then has and IGBT module directly parallel connection
AC and DC copper bar impedance parameter is inconsistent relevant.
For the existing AC copper-line 1 for also ter group IGBT module, see Fig. 1 and Fig. 2,
Described AC copper-line is symmetrical structure, fixes with described first end plate 11 including one first end plate 11 and
The second end plate 12 connected, described first end plate 11 uses one-body molded with described second end plate 12.Institute
Stating the first end plate 11 is round rectangle, and the side of described first end plate 11 is for also ter group IGBT mould
The ac terminal of block, the ac terminal of described three groups of IGBT module respectively by circular hole 111 and 112,
Circular hole 113 and 114, circular hole 115 and 116 are arranged on described first end plate 11.Circular hole 111-116
Center point-blank, described straight line parallel in described first end plate 11 near circular hole 111-116
The edge 117 of side.Described second end plate 12 is with the rectangle of 90 degree of bendings, described second end plate 12
Side be used for connecting load, described load is arranged on described second end plate 12 by circular hole 121 and 122
On, the opposite side of described second end plate 12 is fixing with described first end plate 11 to be connected.
When described AC copper-line 1 is connected with load, three groups of IGBT module and accesses power system, institute
Stating AC copper-line 1 and flowing through first-harmonic is 50Hz and superposition ripple is the alternating current of 2kHz to 4kHz.Institute
The stray inductance stating AC copper-line 1 is relevant with the frequency of fundamental current component, and when frequency is only 50Hz,
Described stray inductance is the least, is negligible, and the dead resistance of described AC copper-line 1 becomes affects institute
State the principal element of the current-sharing of AC copper-line 1.The current path connected due to each IGBT module is different,
Thus cause impedance unbalanced degree height, it is impossible to reach the effect of current-sharing.
Existing for and the AC copper-line 2 of quarter group IGBT module, see Fig. 3, and in parallel
AC copper-line 1 structure of three groups of IGBT module is essentially identical, and difference is, AC copper-line 2
The side of the first end plate 21 is for the ac terminal of also quarter group IGBT module, described four groups of IGBT moulds
The ac terminal of block respectively by circular hole 211 and 212, circular hole 213 and 214, circular hole 215 and 216,
Circular hole 217 and 218 is arranged on described first end plate 21.Described AC copper-line 2 and load, four groups
After IGBT module connects, equally exist the problem that the unbalanced degree of impedance is high, have impact on the power of converter
Grade.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the output impedance of existing AC copper-line inconsistent
Defect, it is provided that a kind of unbalanced degree exporting impedance is low, process simple AC copper-line.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of AC copper-line, the side of one end plate is used for and the ac terminal of ter group IGBT module,
The ac terminal often organizing IGBT module is arranged on described end plate by two circular holes respectively, is characterized in,
One first oval hole and two the second oval holes it are formed with on described end plate；The center in described first oval hole
It is positioned at described end plate on the axis at the edge of the side of described circular hole and described first oval hole
Straight flange is perpendicular to described axis, and described first oval hole is leaned on to described end plate near the straight flange of described circular hole
The distance at the edge of the side of nearly described circular hole is 23.5 millimeters, the circular arc on the both sides in described first oval hole
Diameter in the range of 5 to 6 millimeters, the length of the straight flange in described first oval hole is plus described diameter
Length deducts 1 millimeter less than or equal to one first length and deducts 4 millis more than or equal to described first length
Rice, the centre-to-centre spacing of described first a length of two circular holes for arranging one group of IGBT module with for setting
Put the centre-to-centre spacing sum of two circular holes adjacent in four circular holes of adjacent two group IGBT module；Two
Described second oval hole lays respectively at the both sides of described axis, and the straight flange in described second oval hole is perpendicular to
Described axis, described second oval hole near the straight flange of described circular hole to described end plate near described circular hole
The distance at edge of side be 17 millimeters, the axis being perpendicular to described straight flange in described second oval hole
Vertical dimension between the axis of line and described AC copper-line is equal to the both sides in described first oval hole
The 1/2 of the length sum of the straight flange in the length of the diameter of circular arc and described first oval hole is added one and is preset
Constant, described predetermined constant in the range of 13.75 to 15.25 millimeters, the both sides in described second oval hole
The diameter of circular arc in the range of 5 to 6 millimeters, the length of the straight flange in described second oval hole is plus described
The length of the diameter of the circular arc on the both sides in the second oval hole is in the range of 16.5 to 19.5 millimeters.
Described AC copper-line is after being provided with described first oval hole, the second oval hole, and shape there occurs change
Change, so that the path of the electric current flow through also there occurs change, after testing, the resistance of described AC copper-line
Anti-unbalanced degree, within 4%, meets the power equipment requirement to the unbalanced degree of impedance of AC copper-line.
In addition, it is necessary to explanation, the material of described AC copper-line is not merely copper, those skilled in the art
Both knowing about, the AC copper-line surface for arranging IGBT module also needs through the insulation position such as tin plating, to press
Reason.
It is also preferred that the left the length that the length of the straight flange in described first oval hole adds described diameter is less than or equal to
Described first length deducts 1 millimeter and deducts 3 millimeters more than or equal to described first length.After testing,
The unbalanced degree of impedance of the AC copper-line of the technical program is within 3%.
It is also preferred that the left the length that the length of the straight flange in described first oval hole adds described diameter is less than or equal to
Described first length deducts 1 millimeter and deducts 2 millimeters more than or equal to described first length.After testing,
The unbalanced degree of impedance of the AC copper-line of the technical program is within 2%.
It is also preferred that the left the length of the straight flange in described first oval hole plus the length of described diameter equal to described the
One length deducts 1 millimeter.After testing, the unbalanced degree of the impedance of the AC copper-line of the technical program is better than
The length of the straight flange in described first oval hole is long less than or equal to described first plus the length of described diameter
Degree deducts 1 millimeter and deducts the technical scheme of 2 millimeters more than or equal to described first length.
It is also preferred that the left the length of the straight flange in described second oval hole is plus the circle on the both sides in described second oval hole
The length of the diameter of arc is in the range of 18.5 to 19.5 millimeters.After testing, the exchange copper of the technical program
The unbalanced degree of impedance of row is within 3%.
It is also preferred that the left the length of the straight flange in described second oval hole is plus the circle on the both sides in described second oval hole
The length of the diameter of arc is equal to 19.5 millimeters.After testing, the impedance of the AC copper-line of the technical program is uneven
Weighing apparatus degree is within 2%.
It is also preferred that the left the diameter of the circular arc on the both sides in described first oval hole and the both sides in described second oval hole
The diameter of circular arc be 6 millimeters.The unbalanced degree of impedance of the AC copper-line of the technical program is minimum.
Additionally, the combination in any of above technical scheme also falls within the scope of the present invention.
A kind of AC copper-line, the side of one end plate is used for and the ac terminal of quarter group IGBT module,
The ac terminal often organizing IGBT module is arranged on described end plate by two circular holes respectively, is characterized in,
One the 3rd oval hole it is formed with on described end plate；It is close that described 3rd oval hole is centrally located at described end plate
The straight flange on the axis at the edge of the side of described circular hole and described 3rd oval hole be perpendicular to described in
Axis, described 3rd oval hole near the straight flange of described circular hole to described end plate near the side of described circular hole
The distance at edge be 23.5 millimeters, the diameter of the circular arc on the both sides in described 3rd oval hole is in the range of 5
To 6 millimeters, the length of the straight flange in described 3rd oval hole is straight plus the circular arc on described 3rd both sides, oval hole
The length in footpath is adjacent with for arranging equal to the centre-to-centre spacing of two circular holes for arranging one group of IGBT module
Two groups of IGBT module four circular holes in 2 times of centre-to-centre spacing sum of adjacent two circular holes.
Described AC copper-line is after being provided with described 3rd oval hole, and shape there occurs change, so that
The path of the electric current flow through also there occurs change.After testing, the unbalanced degree of the impedance of described AC copper-line is full
The foot power equipment requirement to the unbalanced degree of impedance of AC copper-line.
It is also preferred that the left a diameter of 6 millimeters of the circular arc on the both sides in described 3rd oval hole.Impedance now is not
Equilibrium degree is minimum.
The most progressive effect of the present invention is: the present invention is by borehole on an end plate of AC copper-line
Mode redistribution current path, it is achieved and ter group or the resistance of four groups of IGBT module ac output ends
Anti-consistent, thus solve the inconsistent uneven flow phenomenon brought of impedance, meet industrial requirement.This
Bright AC copper-line also has the advantage that processing is simple, be suitable for batch production.
Accompanying drawing explanation
Fig. 1 is the existing axonometric chart for the also AC copper-line of ter group IGBT module.
Fig. 2 is the existing front view for the also AC copper-line of ter group IGBT module.
Fig. 3 is the existing front view for the also AC copper-line of quarter group IGBT module.
Fig. 4 is the axonometric chart for the also AC copper-line of ter group IGBT module of the embodiment of the present invention 1.
Fig. 5 is the front view for the also AC copper-line of ter group IGBT module of the embodiment of the present invention 1.
The structural representation of AC copper-line when Fig. 6 is the emulation of the embodiment of the present invention 1.
Fig. 7 is the front view for the also AC copper-line of quarter group IGBT module of the embodiment of the present invention 2.
Detailed description of the invention
Embodiment 1
Seeing Fig. 4 and Fig. 5, the AC copper-line 1 ' of the present embodiment is at the of existing AC copper-line 1
Obtain after one first oval hole and two the second oval holes are set on end plate 11, and existing exchange
The shape and structure of copper bar 1 is illustrated the most in the introduction, therefore repeats no more, and supplements at this
(AC copper-line 1 ' in figure is identical with described AC copper-line 1 and at Fig. 1 and Tu for relevant design parameter
The part marked in 2 continues to use the reference in Fig. 1 and Fig. 2).
A length of on the direction, axis being perpendicular to described AC copper-line 1 ' of described first end plate 11
139 millimeters, at a length of 40 millimeters be parallel on direction, described axis, thickness is 5 millimeters.Circle
The diameter of hole 111-116 is 6.5 millimeters, circular hole 111 and 112, circular hole 113 and 114, circular hole 115
With 116 centre-to-centre spacing be 22 millimeters, circular hole 112 and 113, the centre-to-centre spacing of circular hole 114 and 115 are
28 millimeters.The end face being parallel to described first end plate 11 after described second end plate 12 bending is being parallel to
On direction, described axis a length of 80 millimeters, at the length width being perpendicular on direction, described axis
Degree is 40 millimeters, and thickness is 5 millimeters.The diameter of circular hole 121 and 122 is 9 millimeters, both
Centre-to-centre spacing is 22 millimeters, and both centers are equal to the distance in the face 123 ' of confluxing of described second end plate 12
It it is 15 millimeters.
The described first oval hole 118 ' of the most described AC copper-line 1 ' and two described
The positions and dimensions in two oval holes 119 '.
Seeing Fig. 4 and Fig. 5, described first oval hole 118 ' is centrally located at described first end plate 21 and leans on
Closely on the axis at the edge 117 of the side of circular hole 111-116 and described first oval hole 118 ' is straight
While be perpendicular to described axis.The straight flange of the described first close circular hole 111-116 in oval hole 118 ' is to institute
The distance stating edge 117 is 23.5 millimeters.The diameter of the circular arc on the both sides in described first oval hole 118 '
D1It is 6 millimeters, the L in described first oval hole 118 '1Length deduct 1 millimeter equal to one first length,
Wherein, L1Length for the straight flange in described first oval hole 118 ' adds described diameter D1, described first
The centre-to-centre spacing of a length of two circular holes for arranging one group of IGBT module with for arranging adjacent two group
The centre-to-centre spacing of two circular holes adjacent in four circular holes of IGBT module, for the present embodiment, described
One length is equal to 50 millimeters equal to the centre-to-centre spacing of circular hole 111 with circular hole 113, the most described first oval hole
The L of 118 '1Equal to 49 millimeters.
Two described second oval holes 119 ' lay respectively at the both sides of described axis, described second oval
The straight flange in hole 119 ' is perpendicular to described axis.Described second oval hole 119 ' is near circular hole 111-116
Straight flange be 17 millimeters to the distance at the edge 117 of described first end plate 11.Described second oval hole 119 '
The axis being perpendicular to described straight flange and the axis of described AC copper-line 1 ' between vertical dimension etc.
The diameter D of circular arc in the both sides in described first oval hole 118 '1With described first oval hole 118 '
A predetermined constant is added in the 1/2 of the length sum of straight flange, and wherein said predetermined constant is in the range of 13.75
To 15.25 millimeters, the predetermined constant value of the present embodiment is 13.75 millimeters, then, in the present embodiment
In the axis being perpendicular to described straight flange in described second oval hole 119 ' and described AC copper-line 1 '
Vertical dimension between axis is equal to 38.25 millimeters.The circular arc on the both sides in described second oval hole 119 '
Diameter D2It is 6 millimeters, the L in described second oval hole 119 '2It is 19.5 millimeters, L2For described
The length of the straight flange in two oval holes 119 ' adds the straight of the circular arc on the both sides in described second oval hole 119 '
Footpath D2。
Those skilled in the art both know about, be frequently not in the prior art employing be directly linked into electrical network or
The method of other power system detects the unbalanced degree of impedance of AC copper-line, this is because this method becomes
This height, difficulty are big, easily affect the operation of miscellaneous equipment.The impedance of general detection AC copper-line is uneven
Weighing apparatus method be use LCR electric bridge (a kind of use microprocessor technology for measuring inductance, electricity
Appearance, resistance, the method for impedance) measure, but in view of to LCR table, (one is used for measuring electricity
Sense, electric capacity, resistance, the instrument of impedance) certainty of measurement requires higher, general being difficult to is measured accurately.Adopt
With MAXWELL software, (a kind of finite element analysis software, is usually used in ac/dc magnetic field, electrostatic field
And the analysis of the aspect such as transient electromagnetic field) AC copper-line is carried out electrostatic field emulation.
Concrete, the emulation mode of the AC copper-line 1 ' of the present embodiment is: in described face 123 ' of confluxing
The DC current of upper applying 300A is as driving source；By arranging the side of copper sheet on AC copper-line 1 '
Formula detection flows into the electric current of the IGBT module of the upper setting of circular hole 111-116, for example, with reference to Fig. 6,
A foursquare copper sheet 111 '-116 is pasted respectively on circular hole 111-116 ', the center of each described copper sheet is equal
Have a circular hole identical with described circular hole 111 size, copper sheet 111 '-116 ' respectively with circular hole 111-116
Center alignment, and copper sheet 111 '-116 ' be not in contact with each other.So, described driving source simulates reality
Load in application, the electric current flowing through each copper sheet is the electric current flowing into each IGBT module.By surveying
Amount flow through copper sheet 111 '-116 ' electric current, calculate AC copper-line 1 ' the unbalanced degree of impedance, obtain with
Lower result:
Table 1
Wherein, the unbalanced degree of impedance=(flow through electric current flat of all copper sheets of the electric current of a copper sheet-flow through
Average)/(flowing through the meansigma methods of the electric current of all copper sheets), take absolute value.
As can be seen from Table 1, as the D in described first oval hole 118 '1=6 millimeters, L1=49 millimeters,
The D in described second oval hole 119 '2=6 millimeters, L2When=19.5 millimeters, the impedance of AC copper-line 1 '
Unbalanced degree, within 2%, illustrates entirely different with the current path on existing AC copper-line 1, institute
State the current path on AC copper-line 1 ' by the first oval hole 118 ' and shadow in the second oval hole 119 '
Ring, be reallocated so that the impedance of the ac output end of three groups of IGBT module in parallel is consistent, solve
The inconsistent uneven flow phenomenon brought of impedance of having determined, meets industrial requirement.
On the basis of AC copper-line 1 ', adjust the D in described first oval hole 118 '1Length, adopt
Flow through copper sheet 111 '-116 with same test environment measurement ' electric current, the impedance calculated is unbalanced
Degree, obtains following result:
Table 2
In conjunction with Tables 1 and 2 it can be seen that work as the D in described first oval hole 118 '1At 5 to 6 millimeters
Time, the unbalanced degree of impedance of AC copper-line 1 ', within 3%, can make three groups of IGBT of parallel connection equally
The impedance of the ac output end of module is consistent, but D1Effect when=5 millimeters is not so good as D1When=6 millimeters
Effect, and D1The unbalanced degree of impedance when=4 millimeters has been even more than 4%, it is impossible to ensure in parallel three groups
The impedance of the ac output end of IGBT module is consistent.
On the basis of AC copper-line 1 ', adjust the L in described first oval hole 118 '1Length, adopt
Flow through copper sheet 111 '-116 with same test environment measurement ' electric current, the impedance calculated is unbalanced
Degree, obtains following result:
Table 3
In conjunction with table 1 and table 3 it can be seen that work as the L in described first oval hole 118 '1At 48 millimeters extremely
When 49 millimeters, the unbalanced degree of impedance of AC copper-line 1 ', also within 2%, can reach equally so that also
The impedance of the ac output end of three groups of IGBT module of connection is consistent.When described first oval hole 118 '
L1When 47 millimeters to 49 millimeters, the unbalanced degree of impedance is within 3%.When described first oval hole 118 '
L1When 46 millimeters to 49 millimeters, the unbalanced degree of impedance is within 4%.But work as L1When=45 millimeters
The unbalanced degree of impedance be even more than 4%, it is impossible to ensure that the exchange of three groups of in parallel IGBT module is defeated
The impedance going out end is consistent.
On the basis of AC copper-line 1 ', adjust the D in described second oval hole 119 '2Length, adopt
Flow through copper sheet 111 '-116 with same test environment measurement ' electric current, the impedance calculated is unbalanced
Degree, obtains following result:
Table 4
In conjunction with table 1 and table 4 it can be seen that work as the D in described second oval hole 119 '2At 5 to 6 millimeters
Time, the unbalanced degree of impedance of AC copper-line 1 ', within 4%, can make three groups of IGBT of parallel connection equally
The impedance of the ac output end of module is consistent, but D2Effect when=5 millimeters is not so good as D2When=6 millimeters
Effect, and D2The unbalanced degree of impedance when=4 millimeters has exceeded 4%, it is impossible to ensure three groups of IGBT in parallel
The impedance of the ac output end of module is consistent.
On the basis of AC copper-line 1 ', adjust the L in described second oval hole 119 '2Length, adopt
Flow through copper sheet 111 '-116 with same test environment measurement ' electric current, the impedance calculated is unbalanced
Degree, obtains following result:
Table 5
In conjunction with table 1 and table 5 it can be seen that work as the L in described second oval hole 119 '2At 18.5 millimeters
During to 19.5 millimeters, the unbalanced degree of impedance of AC copper-line 1 ' ensure that within 3%.When described
The L in the second oval hole 119 '2When 16.5 millimeters to 19.5 millimeters, the unbalanced degree of impedance is within 4%.
But work as L2During less than 16.5 millimeters, the unbalanced degree of impedance has exceeded 4%, it is impossible to ensure three groups of IGBT in parallel
The impedance of the ac output end of module is consistent.
In sum, D1At 5 millimeters to 6 millimeters, L1At 46 millimeters to 49 millimeters, D2At 5 millis
Rice is to 6 millimeters and L2When 16.5 millimeters to 19.5 millimeters, the unbalanced degree of impedance of AC copper-line 1 '
Within 4%.
The most further by L1It is adjusted to 47 millimeters to 49 millimeters, and/or, L2It is adjusted to
When 18.5 millimeters to 19.5 millimeters, the unbalanced degree of impedance of AC copper-line 1 ' is within 3%.
The most further by D1It is adjusted to 6 millimeters, and/or, L1It is adjusted to 48 millimeters
To 49 millimeters, and/or, D2It is adjusted to 6 millimeters, and/or, L2When being adjusted to 19.5 millimeters, exchange
The unbalanced degree of impedance of copper bar 1 ' is within 2%.
The most most preferably it is combined as D1=6 millimeters, L1=49 millimeters, and/or, D2=6 millimeters, and/
Or, L2=19.5 millimeters, the unbalanced degree of impedance now is minimum.
By the present embodiment it can be seen that the present invention is by the way of borehole on existing AC copper-line, weight
Newly distribute current path so that the impedance of each ac output end of IGBT module in parallel is consistent, has very
Good practical function.
Embodiment 2
Seeing Fig. 7, the AC copper-line 2 ' of the present embodiment is the first end plate at existing AC copper-line 2
Obtain after one the 3rd oval hole 23 ' is set on 21, and the shape and structure of existing AC copper-line 2 is
Through being illustrated in the introduction, therefore repeat no more, supplement relevant design parameter (figure at this
In the AC copper-line 2 ' part identical with described AC copper-line 2 continue to use the reference in Fig. 3).
A length of on the direction, axis being perpendicular to described AC copper-line 2 ' of described first end plate 21
189 millimeters.Described 3rd oval hole 23 ' is centrally located at described first end plate 21 near circular hole 211-218
Side edge 219 axis on and the straight flange in described 3rd oval hole 23 ' be perpendicular to described axis
Line.The straight flange of the described 3rd close circular hole 211-218 in oval hole 23 ' to the distance at described edge 219 is
23.5 millimeters, the diameter of the circular arc on described 3rd both sides, oval hole 23 ' in the range of 5 to 6 millimeters, institute
The length of the straight flange stating the 3rd oval hole 23 ' adds the arc diameter on described 3rd both sides, oval hole 23 '
Length adjacent with for arranging equal to the centre-to-centre spacing for two circular holes arranging one group of IGBT module
2 times of the centre-to-centre spacing sum of two circular holes adjacent in four circular holes of two groups of IGBT module, are i.e. equal to
Circular hole 212 and the centre-to-centre spacing of circular hole 216, be namely equal to 100 millimeters.
MAXWELL software is used to carry out electrostatic field emulation the AC copper-line 2 ' of the present embodiment, imitative
True method is with embodiment 1, and the current path on described AC copper-line 2 ' is by the 3rd oval hole 23 '
Impact, is reallocated so that the impedance of the ac output end of four groups of IGBT module in parallel is consistent,
Solve in the inconsistent uneven flow phenomenon brought of impedance, concrete emulation mode and result and embodiment 1
AC copper-line 1 ' is similar, does not repeats them here.
Wherein, during a diameter of 6 millimeters of the circular arc on the both sides in described 3rd oval hole 23 ', impedance is uneven
Weighing apparatus degree is minimum.
Although the foregoing describing the detailed description of the invention of the present invention, but those skilled in the art should managing
Solving, these are merely illustrative of, and protection scope of the present invention is defined by the appended claims.This
The technical staff in field, can be to these embodiment party on the premise of without departing substantially from the principle of the present invention and essence
Formula makes various changes or modifications, but these changes and amendment each fall within protection scope of the present invention.
Claims (9)
1. an AC copper-line, the side of one end plate is for the exchange of also ter group IGBT module
Terminal, the ac terminal often organizing IGBT module is arranged on described end plate by two circular holes respectively, its
It is characterised by, described end plate is formed one first oval hole and two the second oval holes；
Described first oval hole is centrally located at described end plate in the edge of the side of described circular hole
The straight flange on axis and described first oval hole is perpendicular to described axis, and described first oval hole is near institute
Stating the straight flange of circular hole to the described end plate distance near the edge of the side of described circular hole is 23.5 millimeters, institute
State the diameter of circular arc on the both sides in the first oval hole in the range of 5 to 6 millimeters, described first oval hole
The length of straight flange plus described diameter length less than or equal to one first length deduct 1 millimeter and more than or
4 millimeters are deducted equal to described first length, described first a length of for arranging one group of IGBT module
The centre-to-centre spacing of two circular holes with for arranging in four circular holes of adjacent two group IGBT module adjacent two
The centre-to-centre spacing sum of individual circular hole；
Two described second oval holes lay respectively at the both sides of described axis, described second oval hole straight
While be perpendicular to described axis, described second oval hole is close to described end plate near the straight flange of described circular hole
The distance at the edge of the side of described circular hole is 17 millimeters, described second oval hole be perpendicular to described directly
Vertical dimension between axis and the axis of described AC copper-line on limit is equal to described first oval hole
1/2 the adding again of length sum of length and the straight flange in described first oval hole of diameter of circular arc on both sides
A upper predetermined constant, described predetermined constant in the range of 13.75 to 15.25 millimeters, described second oval
The diameter of the circular arc on the both sides in hole in the range of 5 to 6 millimeters, the length of the straight flange in described second oval hole
Plus the length of diameter of circular arc on both sides in described second oval hole in the range of 16.5 to 19.5 millimeters.
2. AC copper-line as claimed in claim 1, it is characterised in that described first oval hole straight
The length on limit plus described diameter length less than or equal to described first length deduct 1 millimeter and more than or
3 millimeters are deducted equal to described first length.
3. AC copper-line as claimed in claim 2, it is characterised in that described first oval hole straight
The length on limit plus described diameter length less than or equal to described first length deduct 1 millimeter and more than or
2 millimeters are deducted equal to described first length.
4. AC copper-line as claimed in claim 3, it is characterised in that described first oval hole straight
The length on limit deducts 1 millimeter plus the length of described diameter equal to described first length.
5. AC copper-line as claimed in claim 1, it is characterised in that described second oval hole straight
The length on limit plus described second oval hole both sides circular arc diameter length in the range of 18.5 to
19.5 millimeters.
6. AC copper-line as claimed in claim 5, it is characterised in that described second oval hole straight
The length on limit is equal to 19.5 millimeters plus the length of the diameter of the circular arc on the both sides in described second oval hole.
7. the AC copper-line as described in any one in claim 1-6, it is characterised in that described
The diameter of the circular arc on the diameter of the circular arc on the both sides in one oval hole and the both sides in described second oval hole is 6
Millimeter.
8. an AC copper-line, the side of one end plate is for the exchange of also quarter group IGBT module
Terminal, the ac terminal often organizing IGBT module is arranged on described end plate by two circular holes respectively, its
It is characterised by, described end plate is formed one the 3rd oval hole；
Described 3rd oval hole is centrally located at described end plate in the edge of the side of described circular hole
The straight flange on axis and described 3rd oval hole is perpendicular to described axis, and described 3rd oval hole is near institute
Stating the straight flange of circular hole to the described end plate distance near the edge of the side of described circular hole is 23.5 millimeters, institute
State the diameter of circular arc on the both sides in the 3rd oval hole in the range of 5 to 6 millimeters, described 3rd oval hole
The length of straight flange is equal to be used for arranging one group plus the length of the arc diameter on described 3rd both sides, oval hole
The centre-to-centre spacing of two circular holes of IGBT module and four circles for arranging adjacent two group IGBT module
2 times of the centre-to-centre spacing sum of two circular holes adjacent in hole.
9. AC copper-line as claimed in claim 8, it is characterised in that the two of described 3rd oval hole
A diameter of 6 millimeters of the circular arc on limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410048961.XA CN104332787B (en) | 2014-02-12 | 2014-02-12 | AC copper-line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410048961.XA CN104332787B (en) | 2014-02-12 | 2014-02-12 | AC copper-line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104332787A CN104332787A (en) | 2015-02-04 |
| CN104332787B true CN104332787B (en) | 2017-01-04 |
Family
ID=52407469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410048961.XA Active CN104332787B (en) | 2014-02-12 | 2014-02-12 | AC copper-line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104332787B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109309301B (en) * | 2017-07-27 | 2020-10-27 | 中航光电科技股份有限公司 | Conductive terminal and crimping mold thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203423609U (en) * | 2013-09-06 | 2014-02-05 | 上海电气集团股份有限公司 | AC outlet wire bar |
| CN203734086U (en) * | 2014-02-12 | 2014-07-23 | 上海新时达电气股份有限公司 | AC copper bar |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5609298B2 (en) * | 2010-06-18 | 2014-10-22 | 富士電機株式会社 | Laminated busbar |
-
2014
- 2014-02-12 CN CN201410048961.XA patent/CN104332787B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203423609U (en) * | 2013-09-06 | 2014-02-05 | 上海电气集团股份有限公司 | AC outlet wire bar |
| CN203734086U (en) * | 2014-02-12 | 2014-07-23 | 上海新时达电气股份有限公司 | AC copper bar |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104332787A (en) | 2015-02-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8981762B2 (en) | Apparatus and method for improved current shunt sensing | |
| CN109470928B (en) | Method for measuring tower grounding resistance by arranging poles in tower footing | |
| CN106096161B (en) | The emulated computation method of power transmission line power frequency induced voltage and electric current | |
| CN104332787B (en) | AC copper-line | |
| CN103149544A (en) | Epstein frame-based electrical sheet specific total loss measurement method | |
| CN106932648B (en) | Three-phase overhead transmission line phase voltage method for self-calibrating based on shunt capacitance | |
| CN107908806A (en) | A kind of single grade of wire tension change modeling computational methods of transmission line of electricity and simulation test device | |
| CN106443549B (en) | A kind of analog AC resistance device for calibration battery internal resistance test device | |
| CN204461305U (en) | Powder metallurgy workshop adjustable product detects go-no go gauge | |
| CN109406877A (en) | The measurement method and device of capacitance type potential transformer harmonic propagation coefficient | |
| CN203734086U (en) | AC copper bar | |
| CN107957541A (en) | A kind of power semiconductor modular internal parallel cDNA microarray method and system | |
| CN105912771B (en) | Isolator detecting and sweeping robot based on ansys influence the analysis method of optimization on insulator chain spread voltage | |
| CN102916324B (en) | Device for manufacturing wire for secondary connection | |
| CN206074797U (en) | The assay device of the direct current and even-order harmonic influence amount of three-phase electric energy meter | |
| CN110426558A (en) | Conductive film square resistance multiple probe measurement method and measuring head | |
| WO2015192273A1 (en) | Self-adaptive modeling apparatus for three-phase alternating-current electric arc furnace, and simulation algorithm therefor | |
| CN106291061B (en) | A kind of current sensor, processing module and current measuring method | |
| CN105425199B (en) | A kind of electric energy meter direct current even-order harmonic influences the device and method of experiment | |
| CN107632207A (en) | A kind of electromagnetic monitoring points distributing method of identical power transmission mode scissors crossing transmission line of electricity | |
| CN209446648U (en) | The current measuring device of copper bar type conducting wire | |
| CN108152560A (en) | Device and method for determining current of cathode plate of electrolytic cell | |
| CN106501754A (en) | The direct current of three-phase electric energy meter and the experimental rig of even-order harmonic influence amount | |
| CN206369516U (en) | A kind of thick measuring equipment of finished product pcb board | |
| CN205539200U (en) | Cable conductor shields resistance measurement device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |