CN2490589Y - Current sampling resistance - Google Patents
Current sampling resistance Download PDFInfo
- Publication number
- CN2490589Y CN2490589Y CN 01206891 CN01206891U CN2490589Y CN 2490589 Y CN2490589 Y CN 2490589Y CN 01206891 CN01206891 CN 01206891 CN 01206891 U CN01206891 U CN 01206891U CN 2490589 Y CN2490589 Y CN 2490589Y
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- current
- terminals
- current sampling
- terminal
- sampling resistor
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- Expired - Lifetime
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- Measurement Of Current Or Voltage (AREA)
- Details Of Resistors (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The utility discloses a current sampling resistance for the electric power electric flow divider, which consists of a main conductive body, two current terminals and two check terminals; wherein the main conductive body is arranged in the middle of the utility model, the two current terminals are respectively arranged on outer surfaces of two end heads of the main conductive body and two check terminals are respectively arranged on inner surfaces of two end heads of the main conductive body. The current sampling resistance is made by the same material and adopts a structure which the current terminals and the check terminals are separately arranged, thereby avoiding the interference of the current terminal interconnection resistance drop fluctuation on the measured value and making the measured value more accurate.
Description
The utility model belongs to power electronics shunt field, and it is a kind of current sampling resistor.
Low resistive metal silks such as existing current sampling resistor constantan wire commonly used are made, and it directly is connected in the circuit.Tie point promptly is the electric current input and output point, it is again check point, current sampling resistor with respect to low resistance (as 0.1 Ω), method of attachment commonly used is bigger as the connection resistance of welding, crimping etc., the quality that connects also makes the fluctuation that connects resistance bigger, and consistance is poor, thereby causes the resistance drop of tie point inconsistent, influence to measured value is bigger, causes the measured value error of sampling bigger.
The purpose of this utility model provides a kind of to the little current sampling resistor of measured value influence.
For reaching this purpose, the utility model is made by same material, comprises leading body, two current terminals and two detection terminals; Leading body is in the centre, and two current terminals are respectively in the outside of leading body two ends, and two detection terminals have a deep trouth respectively in the inboard of leading body two ends between current terminal and the detection terminal.
Because leading body, current terminal, detection terminal are made one by same material, and detection terminal is in the inboard of main current loop current terminal, therefore avoided current terminal to connect the influence of resistance drop to measured value, a deep trouth is arranged between current terminal and the detection terminal, detection terminal makes measured value more accurate away from current terminal.
The utility model is described in further detail during below in conjunction with accompanying drawing.
Fig. 1 takes the linearly current sampling resistor of body as the leading factor;
Fig. 2 takes the current sampling resistor of the curved shape of body as the leading factor;
Fig. 3 takes the current sampling resistor that body is back-shaped shape as the leading factor.
As shown in Figure 1, current sampling resistor is made with the stable constantan material of temperature-coefficient of electrical resistance, and it is made up of 1, two current terminal 2 of leading body and 3, two detection terminals 4 and 5.Leading body 1 is in the centre of current sampling resistor, and two current terminals 2 and 3 are respectively in the outside of leading body two ends, and two detection terminals 4 and 5 are respectively in the inboard of leading body two ends.Between current terminal 2 and the detection terminal 4 deep trouth 6 is arranged, between current terminal 3 and the detection terminal 5 deep trouth 7 is arranged.A plurality of small end heads of shallow slot are made in current terminal 2 and 3 end, with convenient welding with improve welding reliability, and the whole termination that also can make no shallow slot, as shown in Figure 3.The leading body 1 of center section is linearly, also can make curve-like or other shape, as Fig. 2, shown in Figure 3.
The resistance of leading body 1 can reach the accurate resistance of regulation by the Modified geometrical size.
During use, current terminal and the detection terminal place in circuit with current sampling resistor gets final product respectively.
The ultimate principle of this current sampling resistor is similar with ammeter shunt, but it is that current terminal, detection terminal are made of one with same material, has avoided connecting the influence of resistance drop to measured value effectively.
Claims (3)
1. current sampling resistor, it is characterized in that: it is made with same material, comprises leading body, two current terminals and two detection terminals; Leading body is in the centre, and two current terminals are respectively in the outside of leading body two ends, and two detection terminals have a deep trouth respectively in the inboard of leading body two ends between current terminal and the detection terminal.
2. current sampling resistor according to claim 1 is characterized in that: can there be shallow slot the end of described current terminal, also can be the integral body of no shallow slot.
3. current sampling resistor according to claim 1 is characterized in that: described leading body can be a linearity, also can be curve-like, can also be other Any shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01206891 CN2490589Y (en) | 2001-07-20 | 2001-07-20 | Current sampling resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01206891 CN2490589Y (en) | 2001-07-20 | 2001-07-20 | Current sampling resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2490589Y true CN2490589Y (en) | 2002-05-08 |
Family
ID=33627444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01206891 Expired - Lifetime CN2490589Y (en) | 2001-07-20 | 2001-07-20 | Current sampling resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2490589Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165496B (en) * | 2006-10-20 | 2012-02-22 | 深圳长城开发科技股份有限公司 | Flow divider |
| CN103424591A (en) * | 2012-05-15 | 2013-12-04 | 苏州工业园区新宏博通讯科技有限公司 | Current sampling circuit for automatic reclosing lock |
| CN103559968A (en) * | 2013-10-31 | 2014-02-05 | 毛广甫 | Shunting element for printed circuit board |
| CN105679474A (en) * | 2009-09-04 | 2016-06-15 | 韦沙戴尔电子公司 | Resistor with temperature coefficient of resistance (TCR) compensation |
| CN113075444A (en) * | 2021-03-26 | 2021-07-06 | 电子科技大学 | Online detection device for internal current wiring type distribution of fuel cell |
| US11555831B2 (en) | 2020-08-20 | 2023-01-17 | Vishay Dale Electronics, Llc | Resistors, current sense resistors, battery shunts, shunt resistors, and methods of making |
-
2001
- 2001-07-20 CN CN 01206891 patent/CN2490589Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165496B (en) * | 2006-10-20 | 2012-02-22 | 深圳长城开发科技股份有限公司 | Flow divider |
| CN105679474A (en) * | 2009-09-04 | 2016-06-15 | 韦沙戴尔电子公司 | Resistor with temperature coefficient of resistance (TCR) compensation |
| US10217550B2 (en) | 2009-09-04 | 2019-02-26 | Vishay Dale Electronics, Llc | Resistor with temperature coefficient of resistance (TCR) compensation |
| CN105679474B (en) * | 2009-09-04 | 2020-10-02 | 韦沙戴尔电子公司 | Resistor with Temperature Coefficient of Resistance (TCR) compensation |
| US10796826B2 (en) | 2009-09-04 | 2020-10-06 | Vishay Dale Electronics, Llc | Resistor with temperature coefficient of resistance (TCR) compensation |
| US11562838B2 (en) | 2009-09-04 | 2023-01-24 | Vishay Dale Electronics, Llc | Resistor with temperature coefficient of resistance (TCR) compensation |
| US12009127B2 (en) | 2009-09-04 | 2024-06-11 | Vishay Dale Electronics, Llc | Resistor with temperature coefficient of resistance (TCR) compensation |
| CN103424591A (en) * | 2012-05-15 | 2013-12-04 | 苏州工业园区新宏博通讯科技有限公司 | Current sampling circuit for automatic reclosing lock |
| CN103559968A (en) * | 2013-10-31 | 2014-02-05 | 毛广甫 | Shunting element for printed circuit board |
| CN103559968B (en) * | 2013-10-31 | 2017-01-11 | 深圳市瑞能实业股份有限公司 | Shunting element for printed circuit board |
| US11555831B2 (en) | 2020-08-20 | 2023-01-17 | Vishay Dale Electronics, Llc | Resistors, current sense resistors, battery shunts, shunt resistors, and methods of making |
| CN113075444A (en) * | 2021-03-26 | 2021-07-06 | 电子科技大学 | Online detection device for internal current wiring type distribution of fuel cell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHENGDU INSTITUTE OF ELECTRONICS CO. Free format text: FORMER NAME OR ADDRESS: CHENGDU HOPE ELECTRONIC RESEARCH INSTITUTE |
|
| CP03 | Change of name, title or address |
Address after: No. 181, Airport Road, Sichuan, Chengdu: 610225 Patentee after: Chengdu Hope Electronic Institute Co., Ltd. Address before: Zhang Xianzhi, 181, Airport Road, Sichuan, Chengdu Province, postcode: 610225 Patentee before: Xiwang Electronic Research Inst. Chengdu City |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110720 Granted publication date: 20020508 |