CN106251997A - A kind of mounting structure of current sampling resistor - Google Patents
A kind of mounting structure of current sampling resistor Download PDFInfo
- Publication number
- CN106251997A CN106251997A CN201610793584.1A CN201610793584A CN106251997A CN 106251997 A CN106251997 A CN 106251997A CN 201610793584 A CN201610793584 A CN 201610793584A CN 106251997 A CN106251997 A CN 106251997A
- Authority
- CN
- China
- Prior art keywords
- line segment
- sampling resistor
- mounting structure
- current
- pcb board
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/01—Mounting; Supporting
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
- G01R1/203—Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
Abstract
The invention provides the mounting structure of a kind of current sampling resistor, belong to technical field of electronic products.It solve that existing current sampling resistor is insecure due to mounting means and the inaccurate problem of current sample numerical value that causes.The mounting structure of this current sampling resistor, resistance is used including the electric current being plugged on pcb board, electric current uses resistance include sampling end and be arranged on the both threads material of sampling end both sides, wire rod includes the first line segment and the second line segment, one end of first line segment is connected with sampling end, the other end of the first line segment and the second line segment are connected, and the setting direction of the first line segment is paralleled with the plate face of pcb board, and the setting direction of the second line segment is perpendicular with the plate face of pcb board.It is consistent that it enables to current sampling resistor two ends inserting depth, thus ensure that the resistance measurement accuracy of sampling resistor, and then ensure that the accuracy of sample rate current numerical value.
Description
Technical field
The invention belongs to technical field of electronic products, relate to a kind of current sampling resistor, particularly a kind of current sample electricity
The mounting structure of resistance.
Background technology
Because the drift of health, manganese-copper filament temperature is little, power big, cost performance advantages of higher, the biggest current sample many employings health, copper-manganese
Silk is as sampling resistor, and above-mentioned sampling resistor uses straight cutting mode grafting on circuit boards, is produced by deformation on two straight flanges
The mode of groove determines inserting depth on circuit boards, but owing to the limit effect of groove is limited, different grafting dynamics meetings
Cause bipod inserting depth on circuit boards to differ, thus cause sampling resistor resistance and design load generation difference, thus shadow
Ringing the sampled value of electric current, the mounting means of the current sampling resistor that the most existing health, manganese-copper filament are made can make sampled current value
Forbidden thus affected whole system performance, it is impossible to met the requirement of sample rate current precision.
Summary of the invention
It is an object of the invention to there are the problems referred to above for existing technology, it is proposed that the installation of a kind of current sampling resistor
Structure, its sampling resistor that technical problem is how to solve to be caused due to current sampling resistor installation reason to be solved is poor
The opposite sex.
The purpose of the present invention can be realized by following technical proposal: the mounting structure of a kind of current sampling resistor, including
The electric current being plugged on pcb board uses resistance, it is characterised in that described electric current uses resistance include sampling end and be arranged on sampling
The both threads material of end both sides, described wire rod includes the first line segment and the second line segment, one end of described first line segment and sampling end phase
Even, the other end of the first line segment and the second line segment are connected, and the setting direction of described first line segment is paralleled with the plate face of pcb board,
The setting direction of described second line segment is perpendicular with the plate face of pcb board.
First line segment of wire rod and the bending angle of the second line segment are 90 degree, when electric current uses resistance to be plugged on pcb board,
Second line segment of two wire rods is inserted in the via of pcb board, and the first line segment is then erected on pcb board, this current sample electricity
After resistance uses said structure and mounting means, it is possible to the inserting depth making current sampling resistor two ends on different pcb board is equal
Unanimously, thus ensure that the resistance measurement accuracy of sampling resistor, and then ensure that the accuracy of sample rate current.
In the mounting structure of above-mentioned current sampling resistor, described pcb board is provided with pad, when the second line segment grafting
Time in pad, the first line segment is resisted against on the end face of pad.Pad had both been easy to the connection of wire rod and pcb board, simultaneously again can be more
Well the first line segment of wire rod is carried out spacing, be further ensured that current sampling resistor two ends inserting depth is consistent.
In the mounting structure of above-mentioned current sampling resistor, it is belonging respectively to the length of two the first line segments of both threads material
Equal, the length of two the second line segments being belonging respectively to both threads material is equal.The structure of two root timber material is consistent, it is possible to further
Ensure the resistance measurement accuracy of sampling resistor.
In the mounting structure of above-mentioned current sampling resistor, described wire rod is made up of constantan wire or manganese-copper filament.Health, copper-manganese
Silk temperature drift is little, power is big, cost performance is high, it is possible to be further ensured that the resistance measurement accuracy using resistance.
In the mounting structure of above-mentioned current sampling resistor, described sampling end is bent into interval by constantan wire or manganese-copper filament
Arrange is concavo-convex.The sampling end made with constantan wire or manganese-copper filament, it is more accurate that resistance is measured.
In the mounting structure of above-mentioned current sampling resistor, described sampling end and wire rod are by same health steel wire or same manganese
Steel wire is made.Easy to make, and it is less to produce error.
Compared with prior art, the mounting structure of this current sampling resistor abandons original mode relying on groove spacing, and
The mode using bending 90 degree is installed, and can avoid the diversity of the sampling resistor resistance that the difference of grafting dynamics causes,
Make the sampling resistor two ends inserting depth installed on circuit boards consistent, thus ensure that the resistance accuracy of sampling resistor,
And then ensure that the accuracy of sample rate current.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is current sampling resistor and the released state schematic diagram of pcb board of the present invention.
Fig. 3 is the structural representation of another form of the invention.
In figure, 1, pcb board；2, current sampling resistor；21, sampling end；22, wire rod；221, the first line segment；222, the second line
Section；3, pad.
Detailed description of the invention
The following is the specific embodiment of the present invention and combine accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
Embodiment one:
The present embodiment one includes that pcb board 1 and electric current use resistance 2, and electric current uses resistance 2 to be connected to pcb board by pad 3
On 1.Electric current uses resistance 2 include sampling end 21 and be arranged on the both threads material 22 of sampling end 21 both sides, and wire rod 22 includes first
Line segment 221 and the second line segment 222, one end of the first line segment 221 is connected with sampling end 21, the other end of the first line segment 221 and
Two line segments 222 are connected, and the setting direction of the first line segment 221 is paralleled with the plate face of pcb board 1, the setting direction of the second line segment 222
Perpendicular with the plate face of pcb board 1, the length of two the first line segments 221 being belonging respectively to both threads material 22 is equal, is belonging respectively to two
The length of two the second line segments 222 of root wire rod 22 is equal.In the present embodiment, the second line segment 222 is by the first line segment 221 the most also
Bending downwards forms, it is adaptable to the pcb board 1 that two via pitch are relatively small.When the second line segment 222 is plugged in pad 3,
First line segment 221 is resisted against on the end face of pad 3.The present embodiment one is the spacing of pad 3 and two second line segments 222 on pcb board 1
Between spacing when having error, it is also possible to the first line segment 221 is rotated, to meet installation requirements, is not interfered with electricity simultaneously
Stream uses the accuracy of numerical value.
Sampling end 21 and wire rod 22 in the present embodiment are made up of same health steel wire or same manganese steel silk, easy to make, and
Can guarantee that the resistance error of electric current employing resistance is little, it is ensured that electric current uses the accurate of numerical value.
Embodiment two:
The present embodiment two is essentially identical with the structure of embodiment one, and difference is, the second line segment in the present embodiment two
222 are outwardly and downwardly bent by the first line segment 221 and to form, to be applicable to two bigger pcb boards of via pitch 1.
Specific embodiment described herein is only to present invention spirit explanation for example.Technology neck belonging to the present invention
Described specific embodiment can be made various amendment or supplements or use similar mode to replace by the technical staff in territory
Generation, but without departing from the spirit of the present invention or surmount scope defined in appended claims.
Claims (6)
1. a mounting structure for current sampling resistor, uses resistance (2) including pcb board (1) and electric current, it is characterised in that institute
Stating electric current uses resistance (2) include sampling end (21) and be arranged on the both threads material (22) of sampling end (21) both sides, described wire rod
(22) include that the first line segment (221) and the second line segment (222), one end of described first line segment (221) are connected with sampling end (21),
The other end of the first line segment (221) and the second line segment (222) are connected, the setting direction of described first line segment (221) and pcb board
(1) plate face is parallel, and the setting direction of described second line segment (222) is perpendicular with the plate face of pcb board (1).
The mounting structure of current sampling resistor the most according to claim 1, it is characterised in that described pcb board (1) is upper to be arranged
Having pad (3), when the second line segment (222) is plugged in pad (3), the first line segment (221) is resisted against the end face of pad (3)
On.
The mounting structure of current sampling resistor the most according to claim 2, it is characterised in that be belonging respectively to both threads material
(22) length of two the first line segments (221) is equal, is belonging respectively to the length of two the second line segments (222) of both threads material (22)
Spend equal.
4. according to the mounting structure of the current sampling resistor described in claim 1 or 2 or 3, it is characterised in that described wire rod (22)
It is made up of constantan wire or manganese-copper filament.
The mounting structure of current sampling resistor the most according to claim 4, it is characterised in that described sampling end (21) is by health
Copper wire or manganese-copper filament are bent into spaced concavo-convex.
The mounting structure of current sampling resistor the most according to claim 5, it is characterised in that described sampling end (21) and line
Material (22) is made up of same health steel wire or same manganese steel silk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610793584.1A CN106251997A (en) | 2016-08-31 | 2016-08-31 | A kind of mounting structure of current sampling resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610793584.1A CN106251997A (en) | 2016-08-31 | 2016-08-31 | A kind of mounting structure of current sampling resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106251997A true CN106251997A (en) | 2016-12-21 |
Family
ID=58080160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610793584.1A Pending CN106251997A (en) | 2016-08-31 | 2016-08-31 | A kind of mounting structure of current sampling resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106251997A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717136A (en) * | 2018-08-01 | 2018-10-30 | 济宁奥太电气有限公司 | A kind of software current divider being applied to inverter type welder and method |
| CN110364320A (en) * | 2019-07-24 | 2019-10-22 | 深圳市开步电子有限公司 | A kind of current sense resistor structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10335101A (en) * | 1997-06-02 | 1998-12-18 | Nec Home Electron Ltd | Electronic component |
| CN202034142U (en) * | 2011-01-25 | 2011-11-09 | 深圳市鑫汇科电子有限公司 | Sampling resistor component for electromagnetic oven |
| CN203325612U (en) * | 2013-05-23 | 2013-12-04 | 山东德瑞电器有限公司 | Resistor |
| CN103559968A (en) * | 2013-10-31 | 2014-02-05 | 毛广甫 | Shunting element for printed circuit board |
| CN206022004U (en) * | 2016-08-31 | 2017-03-15 | 浙江朗科智能电气有限公司 | A kind of mounting structure of current sampling resistor |
-
2016
- 2016-08-31 CN CN201610793584.1A patent/CN106251997A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10335101A (en) * | 1997-06-02 | 1998-12-18 | Nec Home Electron Ltd | Electronic component |
| CN202034142U (en) * | 2011-01-25 | 2011-11-09 | 深圳市鑫汇科电子有限公司 | Sampling resistor component for electromagnetic oven |
| CN203325612U (en) * | 2013-05-23 | 2013-12-04 | 山东德瑞电器有限公司 | Resistor |
| CN103559968A (en) * | 2013-10-31 | 2014-02-05 | 毛广甫 | Shunting element for printed circuit board |
| CN206022004U (en) * | 2016-08-31 | 2017-03-15 | 浙江朗科智能电气有限公司 | A kind of mounting structure of current sampling resistor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717136A (en) * | 2018-08-01 | 2018-10-30 | 济宁奥太电气有限公司 | A kind of software current divider being applied to inverter type welder and method |
| CN110364320A (en) * | 2019-07-24 | 2019-10-22 | 深圳市开步电子有限公司 | A kind of current sense resistor structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161221 |
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| RJ01 | Rejection of invention patent application after publication |