CN106093523A - A kind of I V changer - Google Patents
A kind of I V changer Download PDFInfo
- Publication number
- CN106093523A CN106093523A CN201610454916.3A CN201610454916A CN106093523A CN 106093523 A CN106093523 A CN 106093523A CN 201610454916 A CN201610454916 A CN 201610454916A CN 106093523 A CN106093523 A CN 106093523A
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- Prior art keywords
- baffle
- guide layer
- pin
- conductive plate
- changer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0046—Arrangements for measuring currents or voltages or for indicating presence or sign thereof characterised by a specific application or detail not covered by any other subgroup of G01R19/00
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
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Abstract
The present invention provide a kind of I V changer include at least one flow guide bar, the first conductive plate, the second conductive plate and with described flow guide bar resistance one to one；Every described flow guide bar includes being disposed with the first insulating barrier, the first guide layer, the second insulating barrier, the second guide layer and the 3rd insulating barrier from top to bottom；Being provided with plural number bar the first baffle in described first conductive plate, described first conductive plate is provided with the first through hole, and each described first baffle is connected to described first through hole；Being provided with plural number bar the second baffle in described second conductive plate, described second conductive plate is provided with the second through hole, and each described second baffle is connected to described second through hole；Described resistance one end is respectively connecting to described first guide layer and described first baffle, and the other end of described resistance is connected to described second guide layer and described second baffle, improves the precision of current measurement.
Description
Technical field
The present invention relates to a kind of I-V changer.
Background technology
Measure electric current the most accurately, easily, always measure technical body and lay siege to, the problem constantly explored.?
Circuit-under-test accesses I-V changer, uses the voltage at voltmeter measurement translator two ends, further according to Ohm's law, with recording
Voltage can be obtained by the current value in circuit divided by the resistance value of diverter.This measuring method uses equipment few, convenient,
Fast, the main method of high-acruracy survey electric current is become.
But, when using I-V changer to measure electric current, also limited, owing to electric current is at changer resistance by many
The electrical power of upper consumption is converted into heat energy, makes resistance value change, thus affects the accuracy measuring electric current, and
When measuring alternating current, the distributed constant of changer makes changer become an impedance, and the modulus value of impedance can be with the frequency of signal
Change so that the accuracy measuring alternating current is substantially reduced, and the I-V changer being connected in circuit is due to the electricity flowed through
Stream creates electromagnetic field, have impact on the accuracy of current measurement further.The additionally distributed constant of I-V changer and attached
Lead-in wire can change the time constant that I-V changer is overall, thus causes input current signal and output voltage signal to there is phase place
Skew, this is flagrant in the Technology of Precision Measurement of AC power is applied.
Summary of the invention
The technical problem to be solved in the present invention, is to provide a kind of I-V changer, improves the precision of current measurement.
The present invention is achieved in that a kind of I-V changer, including at least one flow guide bar, the first conductive plate, second leads
Electroplax and with described flow guide bar resistance one to one；
Every described flow guide bar include being disposed with from top to bottom the first insulating barrier, the first guide layer, the second insulating barrier,
Second guide layer and the 3rd insulating barrier；
Being provided with plural number bar the first baffle in described first conductive plate, described first conductive plate is provided with the first through hole, often
Individual described first baffle is connected to described first through hole；
Being provided with plural number bar the second baffle in described second conductive plate, described second conductive plate is provided with the second through hole, often
Individual described second baffle is connected to described second through hole；
Described resistance one end is respectively connecting to described first guide layer and described first baffle, the other end of described resistance
It is connected to described second guide layer and described second baffle.
Further, described resistance is four-terminal resistance, and described four-terminal resistance is provided with the first pin, the second pin, the 3rd draws
Foot and the 4th pin, described first pin is connected to described first guide layer, and described second pin is connected to described first water conservancy diversion
Body, described 3rd pin is connected to described second baffle, and described 4th pin is connected to described second guide layer.
Further, described first conductive plate is provided with and described baffle the first connector one to one, described water conservancy diversion
Body plugs and described first connector, and described second conductive plate is provided with and described baffle the second connector one to one, institute
State baffle to plug and described second connector, described flow guide bar is respectively provided with four-terminal resistance and inserts the first water conservancy diversion of pin
Hole, the second pod apertures, the 3rd pod apertures and the 4th pod apertures, described first pod apertures is connected to described first guide layer, described
4th pod apertures is connected to described second guide layer, and described first pin is connected to described first water conservancy diversion by the first pod apertures
Layer, described four pins are connected to described second guide layer by described 4th pod apertures, and described second pin is connected to described the
One baffle, described 3rd pin is connected to described second baffle.
Further, a side of described first guide layer is provided with the first jut, and described first jut is connected to institute
Stating the first pod apertures, described first pin is connected to described first guide layer by described first jut.
Further, a side of described second guide layer is provided with the second jut, and described second jut is connected to institute
Stating the 4th pod apertures, described 4th pin is connected to described second guide layer by described second jut.
Further, described flow guide bar is additionally provided with the first diversion division and the second diversion division, and described first diversion division is connected to
Described second pod apertures, described second diversion division is connected to described 3rd pod apertures, and described second pin is led by described first
Stream portion is connected to described first baffle, and described second pin is connected to described second baffle by described second diversion division,
Described first diversion division is connected to described first baffle by described first connector, and described second diversion division is by described the
Two connectors are connected to described first baffle, and described flow guide bar four sides all around are provided with the 4th insulating barrier.
Further, described baffle is provided with and described flow guide bar the 3rd connector one to one, described flow guide bar
Being inserted in described 3rd connector, described 3rd guide layer is connected to described first guide layer by described 3rd connector, institute
State the 4th guide layer and be connected to described second guide layer by described 3rd connector.
Further, described baffle is provided with third through-hole, and described third through-hole is arranged with the second adapter, described
Second adapter is provided with the second outer conductor and the second inner wire, and described second outer conductor is connected to described 3rd guide layer, described
Second inner wire is connected to described 4th guide layer, and four sides of described baffle are provided with the 8th insulating barrier, described baffle,
The length and width of one conductive plate and the second conductive plate are equal.
Further, the second through hole of described second conductive plate being arranged with the first adapter, described first adapter sets
The first outer conductor and the first inner wire, each described second baffle is had to be connected to described first outer conductor, described first conduction
First baffle of plate is connected to described first inner wire by described first through hole.
Further, also include a baffle, described baffle include being disposed with from top to bottom the 5th insulating barrier,
Three guide layers, the 6th insulating barrier, the 4th guide layer and four-line poem with seven characters to a line edge layer, described 3rd guide layer is connected to described first water conservancy diversion
Layer, described 4th guide layer is connected to described second guide layer.
Present invention have the advantage that one I-V changer of the present invention, flow guide bar uses double-side copper-applying, and current path is
Rightabout, makes the magnetic field flowing through electric current generation cancel out each other；Use the first conductive plate and the second conductive plate so that voltage sampling
Go between the shortest, reduce the distribution capacity of voltage sampling lead-in wire, reduce the response time of changer, improve response performance；And it is every
The voltage sampling lead-in wire of individual sample resistance and electric current current-carrying copper sheet length are equal, the more current-sharing of each resistance.
Accompanying drawing explanation
The present invention is further illustrated the most in conjunction with the embodiments.
Fig. 1 is the structural representation of I-V changer of the present invention.
Fig. 2 is the structural representation of the first conductive plate in I-V changer of the present invention.
Fig. 3 is the structural representation of the second conductive plate in I-V changer of the present invention.
Fig. 4 is the structural representation of baffle in I-V changer of the present invention.
Fig. 5 is the structural representation of flow guide bar in I-V changer of the present invention.
Fig. 6 is A-A sectional view in Fig. 4.
Fig. 7 is the structural representation of four-terminal resistance in I-V changer of the present invention.
Fig. 8 is B-B sectional view in Fig. 5.
Fig. 9 is the first adapter or the structural representation of the second adapter in I-V changer of the present invention.
Figure 10 is the first guide layer schematic diagram in flow guide bar in I-V changer of the present invention.
Figure 11 is the second guide layer schematic diagram in flow guide bar in I-V changer of the present invention.
Detailed description of the invention
As shown in Figure 1 to 11, I-V changer of the present invention, including at least one flow guide bar the 1, first conductive plate 2, second
Conductive plate 3 and described flow guide bar 1 resistance 4 one to one and baffle 5；
It is exhausted that every described flow guide bar 1 includes being disposed with first insulating barrier the 11, first guide layer 12, second from top to bottom
Edge layer the 13, second guide layer 14 and the 3rd insulating barrier 15, described flow guide bar 1 four sides all around are provided with the 4th insulating barrier 1c, make
Obtain flow guide bar 1 will not leak electricity；
Being provided with plural number bar the first baffle 21 in described first conductive plate 2, described first conductive plate 2 is provided with the first through hole
22, each described first baffle 21 is connected to described first through hole 22, by the first through hole 22 by all of first baffle
21 converge together, are then attached to outside；
Being provided with plural number bar the second baffle 31 in described second conductive plate 3, described second conductive plate 3 is provided with the second through hole
32, each described second baffle 31 is connected to described second through hole 32, by the second through hole 32 by all of second baffle
31 converge together, are then attached to outside；
Described resistance 4 one end is respectively connecting to described first guide layer 12 and described first baffle 21, described resistance 4
The other end is connected to described second guide layer 14 and described second baffle 31.
As shown in Figure 5 and 7, described resistance 4 is four-terminal resistance, and four-terminal resistance 4 is the most stable, described four-terminal resistance 4
Being provided with the first pin the 41, second pin the 42, the 3rd pin 43 and the 4th pin 44, described first pin 41 is connected to described first
Guide layer 12, described second pin 42 is connected to described first baffle 21, and described 3rd pin 43 is connected to described second and leads
Fluid 31, described 4th pin 44 is connected to described second guide layer 14.
As shown in Figure 3 and Figure 4, in the present invention, the first conductive plate 2 is provided with and first is connected one to one with described baffle
Mouthfuls 23, described baffle plugs and described first connector 23, and the second conductive plate 3 is provided with and described baffle one to one the
Two connectors 33, described baffle plugs and described second connector 33.
As shown in Fig. 5, Fig. 6, Figure 10 and Figure 11, described flow guide bar 1 is respectively provided with four-terminal resistance 4 and inserts the of pin
One pod apertures the 16, second pod apertures the 17, the 3rd pod apertures 18 and the 4th pod apertures 19, it is simple to connection four-terminal resistance 4, described first
Pod apertures is connected to described first guide layer 12, and described 4th pod apertures is connected to described second guide layer 14, and described first draws
Foot 41 is connected to described first guide layer 12 by the first pod apertures, and described four pins are connected to institute by described 4th pod apertures
Stating the second guide layer 14, described second pin 42 is connected to described first baffle 21, and described 3rd pin 43 is connected to described
Second baffle 31, a side of described first guide layer 12 is provided with the first jut 121, and described first jut is connected to institute
Stating the first pod apertures, described first pin 41 is connected to described first guide layer 12 by described first jut, and described second
One side of guide layer 14 is provided with the second jut 141, and described second jut is connected to described 4th pod apertures, and the described 4th
Pin 44 is connected to described second guide layer 14 by described second jut.
As shown in Figure 5 and 7, in the present invention, flow guide bar 1 is additionally provided with the first diversion division 1a and the second diversion division 1b, and described
One diversion division 1a is connected to described second pod apertures 17, and described second diversion division 1b is connected to described 3rd pod apertures 18, described
Second pin 42 is connected to described first baffle 21 by described first diversion division 1a, and described second pin 42 is by described the
Two diversion division 1b are connected to described second baffle 31, and described first diversion division 1a passes through described first connector 23 (see Fig. 2)
Being connected to described first baffle 21, described second diversion division 1b is connected to described by described second connector 33 (see Fig. 3)
First baffle 21.
As shown in Fig. 3 and Fig. 9, the present invention is arranged with the first adapter 34, institute on the second through hole 32 of the second conductive plate 3
Stating the first adapter 34 and be provided with the first outer conductor 341 and the first inner wire 342, each described second baffle 31 is connected to described
First outer conductor 341, in the first baffle 21 of described first conductive plate 2 is connected to described first by described first through hole 22
Conductor 342.
As shown in Fig. 4, Fig. 8 and Fig. 9, in the present invention baffle 5 include being disposed with from top to bottom the 5th insulating barrier 51,
3rd guide layer the 52, the 6th insulating barrier the 53, the 4th guide layer 54 and four-line poem with seven characters to a line edge layer 55, four sides of described baffle 5 (are i.e. gone up
Side, four, lower left and right) it is provided with the 8th insulating barrier 56, described baffle 5 is provided with third through-hole 57, described 3rd guide layer 52
Being connected to described first guide layer 12 (see Fig. 6), described 4th guide layer 54 is connected to described second guide layer 14, described water conservancy diversion
Block 5 is provided with and described flow guide bar 1 (see Fig. 1) the 3rd connector 56 one to one, and described flow guide bar 1 is inserted in the described 3rd
Connector 56, described 3rd guide layer 52 is connected to described first guide layer 12, i.e. first by described 3rd connector 56
Insulating barrier 11 is provided with the first opening 111, by the first opening 111 first guide layer 12 is connected to the 3rd guide layer 52 (see
Fig. 5), described 4th guide layer 54 is connected to described second guide layer 14 by described 3rd connector 56, i.e. in the 3rd insulation
Layer 15 is provided with the second opening 151, by the second opening 151, second guide layer 14 is connected to the 4th guide layer 54 (see Fig. 5),
Being arranged with the second adapter 58 on described third through-hole 57, described second adapter 58 is provided with in the second outer conductor 581 and second
Conductor 582, described second outer conductor 581 is connected to described 3rd guide layer 52, and described second inner wire 582 is connected to described
Four guide layers 54.
Wherein, in the present invention, the length and width of baffle the 5, first conductive plate 2 and the second conductive plate 3 are equal, if desired measure big
The when of electric current, in that context it may be convenient to make it may be used for detecting big electric current by increasing flow guide bar 1.
Realize principle: the second adapter 58 in changer is connected to circuit-under-test, is connected by the first adapter 34
To voltmeter, circuit-under-test is connected afterwards, and electric current passes through the second adapter 58, is connected to first by the 3rd connector 56 afterwards
Guide layer 12, the electric current of the first guide layer 12 flows to the first pin 41 of four-terminal resistance 4, then by the 4th pin 44 efferent tract
Second guide layer 14, flows back to circuit through the 4th guide layer 54 and the second adapter 58 the most again, and surveying its voltage is then voltage
Table passes through the first adapter 34, is connected to the first baffle 21 afterwards, is then connected to flow deflector 1 by the first connector 23
First diversion division 1a, is connected to the second pin 42 of four-terminal resistance 4 by the second pod apertures 17, and the other end of voltmeter then passes through
First adapter 34, is connected to the second baffle 31 afterwards, is then connected to the second of flow deflector 1 by the second connector 33 and leads
Stream portion 1b, is connected to the 3rd pin 43 of four-terminal resistance 4, so can measure the voltage of changer by the 3rd pod apertures 18,
Afterwards by voltage just can be measured circuital current divided by changer all-in resistance.
Present invention have the advantage that one I-V changer of the present invention, flow guide bar 1 uses double-side copper-applying, and current path is
Rightabout, makes the magnetic field flowing through electric current generation cancel out each other；Use the first conductive plate and the second conductive plate so that voltage sampling
Go between the shortest, reduce the distribution capacity of voltage sampling lead-in wire, reduce the response time of changer, improve response performance；And it is every
The voltage sampling lead-in wire of individual sample resistance and electric current current-carrying copper sheet length are equal, the more current-sharing of each resistance, and I-V of the present invention becomes
Parallel operation more easy heat radiation.
Although the foregoing describing the detailed description of the invention of the present invention, but those familiar with the art should managing
Solving, our described specific embodiment is merely exemplary rather than for the restriction to the scope of the present invention, is familiar with this
The technical staff in field, in the equivalent modification made according to the spirit of the present invention and change, should be contained the present invention's
In scope of the claimed protection.
Claims (10)
1. an I-V changer, it is characterised in that: include at least one flow guide bar, the first conductive plate, the second conductive plate and with institute
State flow guide bar resistance one to one；
Every described flow guide bar include being disposed with from top to bottom the first insulating barrier, the first guide layer, the second insulating barrier, second
Guide layer and the 3rd insulating barrier；
Being provided with plural number bar the first baffle in described first conductive plate, described first conductive plate is provided with the first through hole, Mei Gesuo
State the first baffle and be connected to described first through hole；
Being provided with plural number bar the second baffle in described second conductive plate, described second conductive plate is provided with the second through hole, Mei Gesuo
State the second baffle and be connected to described second through hole；
Described resistance one end is respectively connecting to described first guide layer and described first baffle, and the other end of described resistance connects
To described second guide layer and described second baffle.
A kind of I-V changer the most according to claim 1, it is characterised in that: described resistance is four-terminal resistance, described four ends
Resistance is provided with the first pin, the second pin, the 3rd pin and the 4th pin, and described first pin is connected to described first water conservancy diversion
Layer, described second pin is connected to described first baffle, and described 3rd pin is connected to described second baffle, and the described 4th
Pin is connected to described second guide layer.
3. a kind of I-V changer as claimed in claim 2, it is characterised in that: described first conductive plate is provided with and described water conservancy diversion
Body the first connector one to one, described baffle plugs and described first connector, and described second conductive plate is provided with and institute
Stating baffle the second connector one to one, described baffle plugs and described second connector, on described flow guide bar respectively
It is provided with and inserts the first pod apertures of pin, the second pod apertures, the 3rd pod apertures and the 4th pod apertures for four-terminal resistance, described first
Pod apertures is connected to described first guide layer, and described 4th pod apertures is connected to described second guide layer, and described first pin leads to
Crossing the first pod apertures and be connected to described first guide layer, described four pins are connected to described second by described 4th pod apertures and lead
Fluid layer, described second pin is connected to described first baffle, and described 3rd pin is connected to described second baffle.
A kind of I-V changer the most according to claim 2, it is characterised in that: a side of described first guide layer is provided with
First jut, described first jut is connected to described first pod apertures, and described first pin passes through described first jut
It is connected to described first guide layer.
A kind of I-V changer the most according to claim 2, it is characterised in that: a side of described second guide layer is provided with
Second jut, described second jut is connected to described 4th pod apertures, and described 4th pin passes through described second jut
It is connected to described second guide layer.
A kind of I-V changer the most according to claim 2, it is characterised in that: described flow guide bar is additionally provided with the first diversion division
And second diversion division, described first diversion division is connected to described second pod apertures, and described second diversion division is connected to the described 3rd
Pod apertures, described second pin is connected to described first baffle by described first diversion division, and described second pin passes through institute
Stating the second diversion division and be connected to described second baffle, described first diversion division is connected to described by described first connector
One baffle, described second diversion division is connected to described first baffle by described second connector, before and after described flow guide bar
Four sides, left and right are provided with the 4th insulating barrier.
A kind of I-V changer the most according to claim 6, it is characterised in that: described baffle is provided with and described water conservancy diversion
Article one to one the 3rd connector, described flow guide bar is inserted in described 3rd connector, and described 3rd guide layer is by described
3rd connector is connected to described first guide layer, and described 4th guide layer is connected to described second by described 3rd connector
Guide layer.
A kind of I-V changer the most according to claim 6, it is characterised in that: described baffle is provided with third through-hole, institute
Stating and be arranged with the second adapter on third through-hole, described second adapter is provided with the second outer conductor and the second inner wire, and described
Two outer conductors are connected to described 3rd guide layer, and described second inner wire is connected to described 4th guide layer, described baffle
Four sides are provided with the 8th insulating barrier, and the length and width of described baffle, the first conductive plate and the second conductive plate are equal.
A kind of I-V changer the most according to claim 1, it is characterised in that: on the second through hole of described second conductive plate
Being arranged with the first adapter, described first adapter is provided with the first outer conductor and the first inner wire, each described second baffle
Being connected to described first outer conductor, the first baffle of described first conductive plate is connected to described first by described first through hole
Inner wire.
A kind of I-V changer the most according to claim 1, it is characterised in that: also include a baffle, described baffle
Including being disposed with the 5th insulating barrier, the 3rd guide layer, the 6th insulating barrier, the 4th guide layer and four-line poem with seven characters to a line edge from top to bottom
Layer, described 3rd guide layer is connected to described first guide layer, and described 4th guide layer is connected to described second guide layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610454916.3A CN106093523A (en) | 2016-06-21 | 2016-06-21 | A kind of I V changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610454916.3A CN106093523A (en) | 2016-06-21 | 2016-06-21 | A kind of I V changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106093523A true CN106093523A (en) | 2016-11-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610454916.3A Pending CN106093523A (en) | 2016-06-21 | 2016-06-21 | A kind of I V changer |
Country Status (1)
| Country | Link |
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| CN (1) | CN106093523A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110352356A (en) * | 2017-02-15 | 2019-10-18 | Koa株式会社 | Shunt resistance device and the current detection means for using shunt resistance device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110352356A (en) * | 2017-02-15 | 2019-10-18 | Koa株式会社 | Shunt resistance device and the current detection means for using shunt resistance device |
| US11187725B2 (en) | 2017-02-15 | 2021-11-30 | Koa Corporation | Shunt resistor and current sensing device using shunt resistor |
| CN110352356B (en) * | 2017-02-15 | 2022-03-04 | Koa株式会社 | Shunt resistor and current detection device using same |
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Application publication date: 20161109 |