CN105895345A - Impulse current transformer used for switching power supply - Google Patents
Impulse current transformer used for switching power supply Download PDFInfo
- Publication number
- CN105895345A CN105895345A CN201610234177.7A CN201610234177A CN105895345A CN 105895345 A CN105895345 A CN 105895345A CN 201610234177 A CN201610234177 A CN 201610234177A CN 105895345 A CN105895345 A CN 105895345A
- Authority
- CN
- China
- Prior art keywords
- magnetic core
- drum
- coiling group
- fixing
- fixing drum
- 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.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
Abstract
The invention discloses an impulse current transformer used for a switching power supply. The impulse current transformer comprises a shell and a lower magnetic core, wherein three input ports are formed in one side of the shell, and three output ports are formed in the other side of the shell; the output ports comprise a first output port, a second output port and a third output port; a fixing column is arranged on the inner wall of the shell, and the lower magnetic core is arranged on the top of the fixing column; a clamping column and an upper magnetic core are arranged on the top of the lower magnetic core; a groove is formed in the bottom of the upper magnetic core, and the groove is matched with the clamping column; a first fixed drum is arranged at one end of the lower magnetic core, and a second fixed drum, a third fixed drum and a fourth fixed drum are arranged at the other end of the lower magnetic core; a first winding is arranged on the first fixed drum; and the input end of the first winding is connected with the input ports. The impulse current transformer is simple in structure, economical and practical and lower in cost, and the volume of the switching power supply is greatly reduced.
Description
Technical field
The present invention relates to current transformer technical field, particularly relate to a kind of pulse current mutual inductance for Switching Power Supply
Device.
Background technology
Current transformer is one of device conventional in electric system, for by the big current signal in circuit or high electricity
Pressure signal, the small area analysis signal being converted in circuit or low voltage signal, in order to the high voltage in circuit or big electric current
Detect or control, current transformer, its principle is based on electromagnetic induction principle, and iron core and winding by closing form,
It is the sensor that in power system, the secondary device such as measuring instruments, relay protection obtains electrical primary loop current information, existing
Some current transformer only one of which input and output sides, it is impossible to enough use as multiple current transformers.
Summary of the invention
The invention aims to solve shortcoming present in prior art, and propose a kind of for Switching Power Supply
Pulse current transformer.
To achieve these goals, present invention employs following technical scheme:
A kind of pulse current transformer for Switching Power Supply, including housing and lower magnetic core, the side of described housing is provided with three
Input port, and the opposite side of housing is provided with three output ports, described output port includes the first output port, the second output
Port and the 3rd output port, the inwall of described housing is provided with fixing post, and the top of fixing post is provided with lower magnetic core, described under
The top of magnetic core is provided with card column and upper magnetic core, and the bottom of described upper magnetic core is provided with groove, and groove and card column match, described under
One end of magnetic core is provided with the first fixing drum, and the other end of lower magnetic core is provided with the second fixing drum, the 3rd fixing drum and the 4th is fixed
Drum, the described first fixing drum is provided with the first coiling group, the input of described first coiling group and input port and connects, and first
The outfan of coiling group is connected to the defeated of the input of the second coiling group, the input of the 3rd coiling group and the 4th coiling group
Entering end, described second coiling group is positioned on the second fixing drum, and the outfan connection of the second coiling group has the first output port, institute
State the 3rd coiling group to be positioned on the 3rd fixing drum, and the outfan of the 3rd coiling group connects and has the second output port, the described 4th
Coiling group is positioned on the 4th fixing drum, and the outfan connection of the 4th coiling group has the 3rd output port, the described first fixing drum
Second fixing drum, the 3rd fixing drum and the 4th fixing drum are all slidably connected with lower magnetic core.
Preferably, the described 3rd fixing drum is between the second fixing drum and the 4th fixing drum, and the 4th fixing drum is positioned at
The lower section of the second fixing drum.
Preferably, described first coiling group includes lead-out wire, and the junction of lead-out wire and upper magnetic core is provided with insulating barrier.
Preferably, the both sides of described housing are equipped with groove, and groove matches with input port and output port respectively.
In the present invention, by the first fixing drum, the second fixing drum, the 3rd fixing drum and the 4th fixing drum so that this pulse
Current transformer can use as multiple pulse current transformers, greatly reduces the volume of on and off switch, by
One groove and card column, can be fixed on upper magnetic core on lower magnetic core, prevent magnetic core from shaking, by the second groove, permissible
Input port and output port being fixed on housing, the simple in construction of the present invention, economical and practical, cost is relatively low, and makes switch
The volume of power supply is greatly reduced.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of pulse current transformer for Switching Power Supply that the present invention proposes.
In figure: 1 housing, 2 input ports, 3 first fixing drums, 4 times magnetic cores, 5 fix post, magnetic core on 6,7 second fixing drums,
8 output ports, 9 the 3rd fixing drums, 10 the 4th fixing drums.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.
With reference to Fig. 1, a kind of pulse current transformer for Switching Power Supply, including housing 1 and lower magnetic core 4, the one of housing 1
Side is provided with three input ports 2, and the opposite side of housing 1 is provided with three output ports 8, and output port 8 includes the first outfan
Mouth, the second output port and the 3rd output port, the inwall of housing 1 is provided with fixing post 5, and the top of fixing post 5 is provided with down
Magnetic core 4, the top of lower magnetic core 4 is provided with card column and upper magnetic core 1, and the bottom of upper magnetic core 1 is provided with the first groove, and the first groove and card
Post matches, and one end of lower magnetic core 4 is provided with first and fixes drum 3, and the other end of lower magnetic core 4 is provided with second and fixes drum the 7, the 3rd admittedly
Determining drum 9 and the 4th and fix drum 10, first fixes drum 3 is provided with the first coiling group, the input of the first coiling group and input port 2
Connect, and the outfan of the first coiling group is connected to the input of the second coiling group, the input of the 3rd coiling group and the
The input of four coiling groups, the second coiling group is positioned at second and fixes on drum 7, and the outfan of the second coiling group connect have first defeated
Going out port, the 3rd coiling group is positioned at the 3rd and fixes on drum 9, and the outfan connection of the 3rd coiling group has the second output port, the
Four coiling groups are positioned at the 4th and fix on drum 10, and the outfan connection of the 4th coiling group has the 3rd output port, and first fixes drum 3
Second fixes drum the 7, the 3rd fixes drum 9 and the 4th and fixes drum 10 and be all slidably connected with lower magnetic core 4, in the present invention, solid by first
Determine drum 3, second fix drum the 7, the 3rd and fix drum 9 and the 4th and fix drum 10 so that this pulse current transformer can be as multiple
Pulse current transformer uses, and greatly reduces the volume of on and off switch, by the first groove and card column, and can be by upper magnetic
Core 1 is fixed on lower magnetic core 4, prevents magnetic core 1 from shaking, by the second groove, and can be by input port 2 and output port
8 are fixed on housing, the simple in construction of the present invention, and economical and practical, cost is relatively low, and make the volume of Switching Power Supply be greatly reduced.
In the present invention, the 3rd fixes drum 9 fixes drum 7 and the 4th second and fixes between drum 10, and the 4th fixes drum 10
Being positioned at the second lower section fixing drum 7, the first coiling group includes lead-out wire, and the junction of lead-out wire and upper magnetic core 1 is provided with insulation
Layer 2, the both sides of housing 1 are equipped with the second groove, and the second groove matches with input port 2 and output port 8 respectively, this
In bright, by first fixing drum 3, second fixing drum the 7, the 3rd and fix drum 9 and the 4th and fix drum 10 so that this pulse current mutual inductance
Device can use as multiple pulse current transformers, greatly reduces the volume of on and off switch, by the first groove and
Card column, can be fixed on upper magnetic core 1 on lower magnetic core 4, prevent magnetic core 1 from shaking, and by the second groove, can will input
Port 2 and output port 8 are fixed on housing, the simple in construction of the present invention, and economical and practical, cost is relatively low, and makes Switching Power Supply
Volume be greatly reduced.
Operation principle: by first fixing drum 3, second fixing drum the 7, the 3rd and fix drum 9 and the 4th and fix drum 10, this pulse
Current transformer can use as multiple pulse current transformers so that the volume of on and off switch greatly reduces, electric current by
In a port input pulse current transformer in input port 2, electric current is fixed the first coiling group transmission on drum 3 by first
In corresponding output coiling group, electric current is exported by output port 8 again.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, according to technical scheme and
Inventive concept equivalent or change in addition, all should contain within protection scope of the present invention.
Claims (4)
1. for a pulse current transformer for Switching Power Supply, including housing (1) and lower magnetic core (4), it is characterised in that described
The side of housing (1) is provided with three input ports (2), and the opposite side of housing (1) is provided with three output ports (8), described defeated
Go out port (8) and include that the first output port, the second output port and the 3rd output port, the inwall of described housing (1) are provided with
Fixing post (5), and the top of fixing post (5) is provided with lower magnetic core (4), the top of described lower magnetic core (4) is provided with card column and upper magnetic core
(1), the bottom of described upper magnetic core (1) is provided with the first groove, and the first groove and card column match, the one of described lower magnetic core (4)
End is provided with the first fixing drum (3), and the other end of lower magnetic core (4) is provided with the second fixing drum (7), the 3rd fixing drum (9) and the 4th
Fixing drum (10), the described first fixing drum (3) is provided with the first coiling group, the input of described first coiling group and input port
(2) connect, and the outfan of the first coiling group be connected to the input of the second coiling group, the input of the 3rd coiling group and
The input of the 4th coiling group, described second coiling group is positioned on the second fixing drum (7), and the outfan of the second coiling group connects
There are the first output port, described 3rd coiling group to be positioned on the 3rd fixing drum (9), and the outfan of the 3rd coiling group connects and has the
Two output ports, described 4th coiling group is positioned on the 4th fixing drum (10), and the outfan connection of the 4th coiling group has the 3rd
Output port, the described first fixing fixing drum (7) of drum (3) second, the 3rd fixing drum (9) and the 4th be fixing rouse (10) all with lower magnetic
Core (4) is slidably connected.
A kind of pulse current transformer for Switching Power Supply the most according to claim 1, it is characterised in that the described 3rd
Fixing drum (9) is positioned between the second fixing drum (7) and the 4th fixing drum (10), and the 4th fixing drum (10) is positioned at the second fixing drum
(7) lower section.
A kind of pulse current transformer for Switching Power Supply the most according to claim 1, it is characterised in that described first
Coiling group includes lead-out wire, and the junction of lead-out wire and upper magnetic core (1) is provided with insulating barrier (2).
A kind of pulse current transformer for Switching Power Supply the most according to claim 1, it is characterised in that described housing
(1) both sides are equipped with the second groove, and the second groove matches with input port (2) and output port (8) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610234177.7A CN105895345B (en) | 2016-04-17 | 2016-04-17 | A kind of pulse current transformer for Switching Power Supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610234177.7A CN105895345B (en) | 2016-04-17 | 2016-04-17 | A kind of pulse current transformer for Switching Power Supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105895345A true CN105895345A (en) | 2016-08-24 |
| CN105895345B CN105895345B (en) | 2017-12-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610234177.7A Active CN105895345B (en) | 2016-04-17 | 2016-04-17 | A kind of pulse current transformer for Switching Power Supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105895345B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4746891A (en) * | 1985-04-19 | 1988-05-24 | Square D Company | High saturation three coil current transformer |
| CN201829336U (en) * | 2010-06-18 | 2011-05-11 | 江苏安科瑞电器制造有限公司 | Low-voltage open type current transformer |
| CN204651156U (en) * | 2015-06-18 | 2015-09-16 | 中国长江电力股份有限公司 | A kind of core sataration is from alarm current instrument transformer |
| KR20160014020A (en) * | 2013-06-12 | 2016-02-05 | 피닉스 컨택트 게엠베하 ＆ 컴퍼니 카게 | Current sensor arrangement |
-
2016
- 2016-04-17 CN CN201610234177.7A patent/CN105895345B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4746891A (en) * | 1985-04-19 | 1988-05-24 | Square D Company | High saturation three coil current transformer |
| CN201829336U (en) * | 2010-06-18 | 2011-05-11 | 江苏安科瑞电器制造有限公司 | Low-voltage open type current transformer |
| KR20160014020A (en) * | 2013-06-12 | 2016-02-05 | 피닉스 컨택트 게엠베하 ＆ 컴퍼니 카게 | Current sensor arrangement |
| CN204651156U (en) * | 2015-06-18 | 2015-09-16 | 中国长江电力股份有限公司 | A kind of core sataration is from alarm current instrument transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105895345B (en) | 2017-12-29 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: Impulse current transformer used for switching power supply Effective date of registration: 20181212 Granted publication date: 20171229 Pledgee: Hefei high tech Company limited by guarantee Pledgor: hefei bolei electricity Co., Ltd Registration number: 2018340000721 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210906 Granted publication date: 20171229 Pledgee: Hefei high tech Company limited by guarantee Pledgor: HEFEI BOLEI ELECTRICITY Co.,Ltd. Registration number: 2018340000721 |