CN202102037U - High-accuracy current divider - Google Patents
High-accuracy current divider Download PDFInfo
- Publication number
- CN202102037U CN202102037U CN2011201734004U CN201120173400U CN202102037U CN 202102037 U CN202102037 U CN 202102037U CN 2011201734004 U CN2011201734004 U CN 2011201734004U CN 201120173400 U CN201120173400 U CN 201120173400U CN 202102037 U CN202102037 U CN 202102037U
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- high precision
- utility
- model
- end line
- shunt
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Abstract
The utility model relates to a high-accuracy current divider, comprising end pieces (101), a resistance piece (102), an end line (103) and a fastening component (104) of the end line, wherein the resistance piece (102) is welded between the two end pieces (101). The high-accuracy current divider also comprises a thermal shrinking pipe (105) and a connector (106). One end of the end line (103) is fixed on the end pieces (101) by the fastening component (104) of the end line, the other end of the end line (103) is fixedly connected with a jack (107) in the connector (106), and a middle part is arranged in the thermal shrinking pipe (105). By executing the high-accuracy current divider provided by the utility model, the accuracy of a current divider in the prior art can be enhanced from the stage of 0.5 percent to the stage of 0.25 percent, and the requirements of European and American markets are fully met.
Description
Technical field
The utility model relates to a kind of shunt, more particularly, relates to a kind of high precision shunt.
Background technology
A resistive element of parallel connection when the shunt notion comes from the instrument range extension, parallelly connected with the magneto-electric gauge outfit that waits voltage in DC circuit, the effect of the diverting flow that electrifies is with the range of expansion magneto-electric reometer.
See also Fig. 3, be the vertical view of shunt in the prior art.Shunt comprises in the prior art: dististyle 201, resistor disc 202, end line 203 and end line securing member 204; Resistor disc 202 is welded between two dististyles 201; Connect through end line securing member 204 between one end of end line 203 and the dististyle 201; The other end of end line 203 is a voltage output end, receives specific input end, the voltage signal at promptly exportable these shunt two ends.
In use, two of shunt end line 204 angulations are not what fix in the prior art, but can rotate within the specific limits.When two end line 204 angulations changed, measured voltage also had a little variation, thereby causes the not unique of voltage sampling, made measuring accuracy reduce.Therefore, the precision of shunt can only reach 0.5% grade in the prior art, can not satisfy the requirement of needs 0.25% class precision in American-European market.
The utility model content
The technical matters that the utility model will solve is, to the not high defective of shunt precision in the prior art, a kind of high precision shunt that can reach 0.25% class precision is provided.
The utility model solves the technical scheme that its technical matters adopted: construct a kind of high precision shunt; Comprise dististyle, resistor disc, end line and end line securing member; Said resistor disc is welded between two said dististyles, also comprises heat-shrink tube and connector, and an end of said end line is fixed on the said dististyle through the end line securing member; The other end is fixedly connected with the interior jack of said connector, and center section places in the said heat-shrink tube.
In the described high precision shunt of the utility model, the center section of two said end lines is wound in twisted shape each other in the said heat-shrink tube.
In the described high precision shunt of the utility model, be equipped with the draw-in groove that equates with said resistor disc quantity on two said dististyles, and the thickness of the A/F of said draw-in groove and said resistor disc is suitable.
In the described high precision shunt of the utility model, said end line securing member is a metallic screw.
In the described high precision shunt of the utility model, said heat-shrink tube and connector are processed by insulating material, and said jack is processed by conductive material.
Implement the high precision shunt that the utility model provides, have following beneficial effect: the precision of shunt in the prior art is brought up to 0.25% grade by 0.5% grade, fully satisfy the demand in American-European market.
Description of drawings
To combine accompanying drawing and embodiment that the utility model is described further below, in the accompanying drawing:
Fig. 1 is the vertical view of high precision shunt among the utility model first embodiment;
Fig. 2 is the front elevation of high precision shunt among the utility model first embodiment;
Fig. 3 is the vertical view of shunt in the prior art;
Fig. 4 is the vertical view of high precision shunt among the utility model second embodiment;
Fig. 5 is the front elevation of high precision shunt among the utility model second embodiment;
Fig. 6 is the vertical view of high precision shunt among the utility model the 3rd embodiment;
Fig. 7 is the front elevation of high precision shunt among the utility model the 3rd embodiment.
Embodiment
Understand for technical characterictic, purpose and effect to the utility model have more clearly, contrast the embodiment that accompanying drawing specifies the utility model at present.
Please combine to consult Fig. 1 and Fig. 2, be respectively the vertical view and the front elevation of high precision shunt among the utility model first embodiment.As depicted in figs. 1 and 2, this high precision shunt is symmetrical structure, comprises two dististyles 101, ten resistor discs 102, two end lines 103, two end line securing members 104, and heat-shrink tube 105 and connector 106.
Be equipped with ten draw-in grooves on two dististyles 101, and the thickness of the A/F of draw-in groove and resistor disc 102 is suitable.The two ends of resistor disc 102 snap into respectively in the draw-in groove of two dististyles, 101 correspondences, and are further fixing through solder technology again.
Article two, end line 103 is divided into white plastic line and black plastic line, and garment bag is all sloughed at the two ends of two end lines 103, exposes wherein metal-cored.With an end of two end lines 103 expose metal-cored respectively through end line securing member 104, be fixedly connected on each self-corresponding dististyle 101; After the center section of two end lines 103 is wound in twisted shape each other, pass the heat-shrink tube 105 of tubulose; Metal-cored being fixedly connected on respectively on the jack 107 that is arranged in the connector 106 that the other end of two end lines 103 is exposed, 103 in every end line link to each other with each self-corresponding that jack 107.What end line securing member 104 was chosen among the utility model first embodiment is metallic screw, is not limited to metallic screw in the practical application, also can be other securing members of metal material.
The heat-shrink tube that adopted among the utility model first embodiment 105 is processed by insulating material with connector 106, and jack 107 is processed by conductive material.
When using the high precision shunt that the utility model first embodiment provides, electric current is from the dististyle 101 of a certain side, the resistor disc 102 of flowing through, the dististyle 101 from opposite side flows out 107 output voltage signals of two jacks that link to each other with end line 103 again.
Please combine to consult Fig. 4 and Fig. 5, be respectively the vertical view and the front elevation of high precision shunt among the utility model second embodiment.Please combine to consult Fig. 6 and Fig. 7, be respectively the vertical view and the front elevation of high precision shunt among the utility model the 3rd embodiment.Because the utility model second embodiment, the 3rd embodiment are all similar with the first embodiment agent structure, just in the part a little variation are arranged, and just repeat no more here.
Through high precision shunt and the shunt of the prior art that contrast the utility model provides, can find out that the high precision shunt that the utility model provides is to have done following improvement on the basis of existing technology:
One, be fixedly connected between end line and the dististyle, and two end line angulations are remained unchanged, the uniqueness of voltage sampling when having guaranteed to use;
Two, set up connector, thereby when using, end line need not link to each other with the external world directly, but the jack in the connector links to each other with the external world, not only convenient and swift but also avoid getting rusty easily outside metal-cored being exposed to that end line exposes;
Three, set up heat-shrink tube, utilize heat-shrink tube to wrap two end lines, its random rotation is avoided in the position of further fixing two end lines, thus the uniqueness of voltage sampling when further having guaranteed to use.
Through above improvement, implement the high precision shunt that the utility model provides, can the precision of shunt in the prior art be brought up to 0.25% grade by 0.5% grade, fully satisfy the demand in American-European market.
The high precision shunt comprises numbering B1, B2, B4 and B3 among the utility model first embodiment, and the high precision shunt of these different numberings is identical on one-piece construction, and just the size in the part is different; The high precision shunt comprises numbering D1 and A2 among the utility model second embodiment, and the high precision shunt of these different numberings is identical on one-piece construction, and just the size in the part is different; The high precision shunt comprises numbering C1 and C2 among the utility model the 3rd embodiment, and the high precision shunt of these different numberings is identical on one-piece construction, and just the size in the part is different.
See also table 1, the parameter list of the various numbering high precision shunts that provide for the utility model.As shown in table 1, the precision of the various numbering high precision shunts that the utility model provides has all reached 0.25% grade.The rated voltage electric strength of the high precision shunt of different numberings is 25mV, and rated current intensity is different, from 75A to 2000A, does not wait.
Table 1
| Numbering | Rated current | Rated voltage | Precision |
| D1 | 75A | 25mV | 0.25％ |
| A2 | 150A | 25mV | 0.25％ |
| B1 | 300A | 25mV | 0.25％ |
| B2 | 500A | 25mV | 0.25％ |
| B4 | 600A | 25mV | 0.25％ |
| B3 | 1000A | 25mV | 0.25％ |
| C1 | 1500A | 25mV | 0.25％ |
| C2 | 2000A | 25mV | 0.25％ |
Combine accompanying drawing that the embodiment of the utility model is described above; But the utility model is not limited to above-mentioned embodiment, and above-mentioned embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under the enlightenment of the utility model; Not breaking away under the scope situation that the utility model aim and claim protect, also can make a lot of forms, these all belong within the protection of the utility model.
Claims (5)
1. high precision shunt; Comprise dististyle (101), resistor disc (102), end line (103) and end line securing member (104); Said resistor disc (102) is welded between two said dististyles (101); It is characterized in that also comprise heat-shrink tube (105) and connector (106), an end of said end line (103) is fixed on the said dististyle (101) through end line securing member (104); The other end is fixedly connected with the interior jack (107) of said connector (106), and center section places in the said heat-shrink tube (105).
2. high precision shunt according to claim 1 is characterized in that, the center section of interior two the said end lines of said heat-shrink tube (105) (103) is wound in twisted shape each other.
3. high precision shunt according to claim 2 is characterized in that, is equipped with the draw-in groove that equates with said resistor disc (102) quantity on two said dististyles (101), and the thickness of the A/F of said draw-in groove and said resistor disc (102) is suitable.
4. high precision shunt according to claim 3 is characterized in that, said end line securing member (104) is a metallic screw.
5. high precision shunt according to claim 4 is characterized in that, said heat-shrink tube (105) and connector (106) are processed by insulating material, and said jack (107) is processed by conductive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201734004U CN202102037U (en) | 2011-05-26 | 2011-05-26 | High-accuracy current divider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201734004U CN202102037U (en) | 2011-05-26 | 2011-05-26 | High-accuracy current divider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202102037U true CN202102037U (en) | 2012-01-04 |
Family
ID=45388042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201734004U Expired - Fee Related CN202102037U (en) | 2011-05-26 | 2011-05-26 | High-accuracy current divider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202102037U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093523A (en) * | 2016-06-21 | 2016-11-09 | 福建省计量科学研究院 | A kind of I V changer |
| 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 |
| JP2020030154A (en) * | 2018-08-24 | 2020-02-27 | 矢崎総業株式会社 | Shunt type current sensor, and bus bar with shunt resistor |
-
2011
- 2011-05-26 CN CN2011201734004U patent/CN202102037U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093523A (en) * | 2016-06-21 | 2016-11-09 | 福建省计量科学研究院 | A kind of I V changer |
| 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 |
| JP2020030154A (en) * | 2018-08-24 | 2020-02-27 | 矢崎総業株式会社 | Shunt type current sensor, and bus bar with shunt resistor |
| JP7184567B2 (en) | 2018-08-24 | 2022-12-06 | 矢崎総業株式会社 | Busbar with shunt current sensor and shunt resistor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20200526 |