CN201000464Y - Mutual inductor for measuring current - Google Patents
Mutual inductor for measuring current Download PDFInfo
- Publication number
- CN201000464Y CN201000464Y CNU200620046081XU CN200620046081U CN201000464Y CN 201000464 Y CN201000464 Y CN 201000464Y CN U200620046081X U CNU200620046081X U CN U200620046081XU CN 200620046081 U CN200620046081 U CN 200620046081U CN 201000464 Y CN201000464 Y CN 201000464Y
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- mutual inductor
- outer casing
- coil
- shell
- casing
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Abstract
The utility model relates to a mutual inductor used for current measurement, which comprises an outer casing, wherein the outer casing is formed by a left outer casing and a right outer casing, a hole is respectively arranged at the middle part of the left outer casing and the right outer casing, the insides of the left and the right outer casings present ''concave'' groove shapes, a connecting terminal is respectively arranged at the left and the right corners of the upper end parts of the left and right outer casings, a magnetic core winded with a coil is arranged in the left outer casing, the both ends of the coil are respectively firmly connected with the connecting terminals on the left and right corners of the upper end parts of the left and casing, a hollow frame of insulated non-magnet conducting material winded with a coil is arranged in the right outer casing, the connecting terminals on the left and right corners of the upper end parts of the left outer casing of the right outer casing form fixing connections respectively, the connecting terminals on the left and right corners of the upper end part in the right casing and the connecting terminals on the left and right corners of the upper end part are connected through guiding wires and connecting part in a harness, and the connecting parts and the mutual inductor are firmly connected through the connecting seat of an amplifier.
Description
Technical field:
The utility model relates to a kind of mutual inductor, particularly a kind of measurement electric current mutual inductor.
Background technology:
Usually measuring the employed mutual inductor of electric current forms by twining institutes such as primary coil and secondary coil on shell and the magnetic; this mutual inductor exists overall volume big in actual use; Heavy Weight; consumptive material is many, and also power consumption is easily saturated; output voltage is high and dangerous; exceed many times of rated current, the linearity is relatively poor, not can be used as the protection mutual inductor.
Summary of the invention:
The purpose of this utility model is that a kind of measurement electric current mutual inductor will be provided, and it not only can be effectively used to measure electric current usefulness, and volume is little, in light weight, and consumptive material is energy-conservation again less.
Solution of the present utility model to achieve the above object is: measurement electric current of the present utility model includes a shell with mutual inductor, described shell is formed by left shell and right casing, a described left side, the middle part of right casing is equipped with a hole, a described left side, all be " recessed " groove shape in the right casing, a described left side, the left side of the end, upper end in the right casing, be respectively equipped with a connection terminal on the right corner, be provided with a magnetic core that is twining coil in the described left shell, the two ends of described coil each with described left shell in the left side of end, upper end, connection terminal on the right corner forms respectively and is connected and fixed, be provided with a hollow skeleton that is twining the insulated non-magnetic material of coil in the described right casing, the two ends of described coil each with described right casing in the left side of end, upper end, connection terminal on the right corner forms a fixed connection respectively, the left side of the end, upper end in the described left shell, the left side of the end, upper end in connection terminal on the right corner and the described right casing, connection terminal on the right corner forms with a connector by the lead in the wire harness respectively and is connected, and a described connector and a mutual inductor form a fixed connection with the connection seat of amplifier.
Because the utility model has improved existing measurement electric current mutual inductor; employing by the hollow skeleton of insulated non-magnetic material and be wrapped in hollow mutual inductor that the coil on the hollow skeleton forms with by magnetic core be wrapped in the measurement electric current mutual inductor that quick-magnetic saturated current transformer that the coil on the magnetic core forms unites two into one and forms; measurement electric current of the present utility model is little with the mutual inductor volume; in light weight; consumptive material is few; energy-conservation; be difficult for saturated; can be used as the protection mutual inductor; low, the safety of output voltage; exceed many times of rated current, and can keep good linearty.
Description of drawings:
Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the synoptic diagram of measurement electric current of the present utility model with mutual inductor.
Fig. 2 is the left shell structural representation of measurement electric current of the present utility model with mutual inductor.
Fig. 3 is the right shell body structural representation of measurement electric current of the present utility model with mutual inductor.
Embodiment:
Below with reference to accompanying drawing measurement electric current of the present utility model is described in further detail with mutual inductor.
With reference to Fig. 1, Fig. 2 and Fig. 3, the measurement electric current of this utility model is made up of with amplifier (15) shell and mutual inductor with mutual inductor.
Described shell is formed by left shell (1) and right casing (2).Described shell is that rectangle is circular or square.
The middle part of described left shell (1) is provided with a hole (3), be " recessed " groove shape in the described left shell (1), be respectively equipped with a connection terminal (5), (6) on the left and right angle of the end, upper end in the described left shell (1), be provided with one in the described left shell (1) and twining the magnetic core (10) of coil (9), described magnetic core (10) is a rectangle, also can be circular or square, the two ends of described coil (9) each with described left shell (1) in the left and right angle of end, upper end on connection terminal (5), (6) form respectively and be connected and fixed.
The middle part of described right casing (2) is provided with a hole (4), be " recessed " groove shape in the described right casing (2), the left side of the end, upper end in the described right casing (2), be respectively equipped with a connection terminal (7) on the right corner, (8), be provided with a hollow skeleton (12) that is twining the insulated non-magnetic material of coil (11) in the described right casing (2), described hollow skeleton (12) is circular, also can be rectangle or square, the two ends of described coil (11) each with described right casing (2) in the left side of end, upper end, connection terminal on the right corner (7), (8) form a fixed connection respectively.
Formation is connected with a connector (14) by the lead in the wire harness (13) respectively for connection terminal (7), (8) on the left and right angle of the end, upper end in the connection terminal (5) on the left and right angle of the end, upper end in the described left shell (1), (6) and the described right casing (2), and described connector (14) and described mutual inductor form a fixed connection with the connection seat (16) of amplifier (15).
The measurement electric current of the present utility model use of mutual inductor, earlier mutual inductor is connected on the reometer with amplifier (15), and make measurement electric current of the present utility model use the left side of the end, upper end in the described left shell (1) of mutual inductor, connection terminal on the right corner (5), (6) with described right casing (2) in the left side of end, upper end, connection terminal on the right corner (7), the connector (14) of an end of drawing wire harness (13) (8) inserts on the connection seat (16) of mutual inductor with amplifier (15), then allow a bus pass the hole of measurement electric current of the present utility model with the middle part of mutual inductor, feeding electric current can be from read current numerical value on the reometer, measurement electric current of the present utility model with mutual inductor by magnetic core be wrapped in quick-magnetic saturated current transformer that the coil on the magnetic core forms for the power supply of mutual inductor usefulness amplifier (15) is provided, by the hollow skeleton of insulated non-magnetic material be wrapped in the hollow mutual inductor that the coil on the hollow skeleton forms and carry out the current signal detection, mutual inductor carries out signal with amplifier (15) and amplifies, when using external power, can be without quick-magnetic saturated current transformer.
Measurement electric current of the present utility model can be used as supplying measure with mutual inductor, protection mutual inductor with mutual inductor, also can be used as measurement, metering and the signal sampling that is used for consumer, the multifunctional mutual-inductor that obtains.
Claims (4)
1, a kind of measurement electric current mutual inductor, it includes a shell, it is characterized in that described shell is formed by left shell (1) and right casing (2), a described left side, right casing (1), (2) middle part is equipped with a hole (3), (4), a described left side, right casing (1), (2) all be " recessed " groove shape in, a described left side, right casing (1), (2) left side of Nei end, upper end, be respectively equipped with a connection terminal (5) on the right corner, (6), (7), (8), be provided with one in the described left shell (1) and twining the magnetic core (10) of coil (9), the two ends of described coil (9) each with described left shell (1) in the left side of end, upper end, connection terminal on the right corner (5), (6) formation is connected and fixed respectively, be provided with a hollow skeleton (12) that is twining the insulated non-magnetic material of coil (11) in the described right casing (2), the two ends of described coil (11) each with described right casing (2) in the left side of end, upper end, connection terminal on the right corner (7), (8) form a fixed connection respectively, the left side of the end, upper end in the described left shell (1), connection terminal on the right corner (5), (6) with described right casing (2) in the left side of end, upper end, connection terminal on the right corner (7), (8) formation is connected with a connector (14) by the lead in the wire harness (13) respectively, and described connector (14) forms a fixed connection with the connection seat (16) of a mutual inductor with amplifier (15).
2, measurement electric current mutual inductor according to claim 1 is characterized in that described shell is that rectangle is circular or square.
3, measurement electric current mutual inductor according to claim 1 is characterized in that described magnetic core (10) is circular or square for rectangle.
4, measurement electric current mutual inductor according to claim 1, the skeleton (12) that it is characterized in that described insulated non-magnetic material is circle or rectangle or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620046081XU CN201000464Y (en) | 2006-09-20 | 2006-09-20 | Mutual inductor for measuring current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620046081XU CN201000464Y (en) | 2006-09-20 | 2006-09-20 | Mutual inductor for measuring current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201000464Y true CN201000464Y (en) | 2008-01-02 |
Family
ID=39014868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200620046081XU Expired - Fee Related CN201000464Y (en) | 2006-09-20 | 2006-09-20 | Mutual inductor for measuring current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201000464Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968517A (en) * | 2010-09-10 | 2011-02-09 | 中国计量科学研究院 | Mutual inductor measuring system and method for realizing uniform mutual inductance quantity vertical gradient |
| CN104965109A (en) * | 2009-08-06 | 2015-10-07 | Abb瑞士有限公司 | Module for measuring the current flowing in a conductor of a low-voltage distribution board |
-
2006
- 2006-09-20 CN CNU200620046081XU patent/CN201000464Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104965109A (en) * | 2009-08-06 | 2015-10-07 | Abb瑞士有限公司 | Module for measuring the current flowing in a conductor of a low-voltage distribution board |
| CN104965109B (en) * | 2009-08-06 | 2017-12-12 | Abb 瑞士有限公司 | For measuring the module of the electric current flowed in the conductor of low-voltage distribution device |
| CN101968517A (en) * | 2010-09-10 | 2011-02-09 | 中国计量科学研究院 | Mutual inductor measuring system and method for realizing uniform mutual inductance quantity vertical gradient |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080102 Termination date: 20091020 |