CN204155715U - A kind of core structure and there is the reactor of this core structure - Google Patents
A kind of core structure and there is the reactor of this core structure Download PDFInfo
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- CN204155715U CN204155715U CN201420175356.4U CN201420175356U CN204155715U CN 204155715 U CN204155715 U CN 204155715U CN 201420175356 U CN201420175356 U CN 201420175356U CN 204155715 U CN204155715 U CN 204155715U
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- core structure
- core
- yoke
- center pillar
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Abstract
The utility model relates to reactor and core structure thereof, more particularly, relates to a kind of core structure and has the reactor of this core structure; This core structure, comprises the magnetic circuit be made up of metal magnetic powder core and non-crystal block; Concrete, described core structure comprises at least two center pillars be made up of metal magnetic powder core and the upper yoke be made up of non-crystal block and lower yoke, described upper yoke is positioned at the upper end of described center pillar, and described lower yoke is positioned at the lower end of described center pillar, and described center pillar, upper yoke become described magnetic circuit with lower yoke piece; In this core structure, combined by metal magnetic powder core and non-crystal block and form magnetic circuit, the loss of magnetic core can be reduced further, reduce the overall dimensions of magnetic core, and can reduce costs.
Description
Technical field
The utility model relates to reactor and core structure thereof, more particularly, relates to a kind of powder core and the non-crystal block core structure at same magnetic circuit, and has the reactor of this core structure.
Background technology
Reactor, is also referred to as inductor, and in the inverters such as traditional UPS, magnetic core that is single-phase or three-phase reactor is generally made up of the single material such as silicon steel or powder core.
The magnetic core of the reactor adopting silicon steel to make, because the magnetic permeability of silicon steel is high, initial permeability, more than 5000, adopts less coil turn, adds the modes such as segmentation air gap, can accomplish required inductance value at the center pillar of magnetic core.But because air gap concentrates on several positions of center pillar, cause the overall losses of magnetic core comparatively large, the noise of audio range is large, needs to reduce operating magnetic field flux density and just can reduce noise.
The magnetic core of the reactor adopting metal magnetic powder core to make, the general magnetic core adopting less powder core cuboid rod to be spliced into larger size.This core structure makes air gap be evenly distributed in whole magnetic circuit, and the overall losses of magnetic core and noise are all relatively little, but due to the permeability of metal magnetic powder core lower, effective permeability is 10 ~
125, identical coil turn, can only obtain less inductance value, in order to obtain enough inductance values, just need the physical dimension increasing magnetic core to meet the requirements of inductance value.
In order to reduce loss, the reduction noise of magnetic core, reduce the overall dimensions of magnetic core, Chinese utility model patent CN 202487347 U provides a kind of core structure, its magnetic circuit is made up of metal magnetic powder core and silicon steel, but the loss of this core structure still higher, size is also still comparatively large, and cost is higher.
The core structure of the magnetic circuit adopting metal magnetic powder core and non-crystal block to form is yet there are no in prior art.
Utility model content
For solving the problem, the purpose of this utility model is the reactor providing a kind of core structure and have this core structure, in this core structure, combined by metal magnetic powder core and non-crystal block and form magnetic circuit, the loss of magnetic core can be reduced further, reduce the overall dimensions of magnetic core, and can reduce costs.
The utility model solves the technical scheme that its technical problem adopts: a kind of core structure, comprises the magnetic circuit be made up of metal magnetic powder core and non-crystal block.
Optimize, described core structure comprises at least two center pillars be made up of metal magnetic powder core and the upper yoke be made up of non-crystal block and lower yoke, described upper yoke is positioned at the upper end of described center pillar, and described lower yoke is positioned at the lower end of described center pillar, and described center pillar, upper yoke become described magnetic circuit with lower yoke piece.
Optimize, described core structure comprises two center pillars.
Optimize, described upper yoke is attached on the end face of the upper end of described center pillar, and described lower yoke is attached on the end face of the lower end of described center pillar.
Optimize, described upper yoke is between the upper end of two described center pillars, and described lower yoke is between the lower end of two described center pillars.
Optimize, described center pillar forms by metal magnetic plug is bonding.
Optimize, described upper yoke and lower yoke are laminated by amorphous sheet.
A kind of reactor that the utility model provides, comprises above-mentioned any one core structure, and around the multiturn coil of described magnetic circuit.
Use core structure of the present utility model and there is the reactor of this core structure, there is following beneficial effect: core structure of the present utility model is by being jointly based upon on same magnetic circuit by metal magnetic powder core and non-crystal block, on the basis keeping higher inductance value, lower noise, the loss with the reactor of this magnetic core, the overall dimensions reducing reactor can be reduced further, reduce costs.
Accompanying drawing explanation
The schematic diagram of core structure of Fig. 1 for providing in the utility model embodiment.
1, upper yoke; 2, lower yoke; 3, center pillar.
Embodiment
The utility model is illustrated below in conjunction with drawings and embodiments.
Embodiment
The core structure that the present embodiment provides, comprises the magnetic circuit be made up of metal magnetic powder core and non-crystal block.
Wherein, described core structure comprises two center pillars be made up of metal magnetic powder core and the upper yoke be made up of non-crystal block and lower yoke, described upper yoke is positioned at the upper end of described center pillar, and described lower yoke is positioned at the lower end of described center pillar, and described center pillar, upper yoke become described magnetic circuit with lower yoke piece.
Wherein, described upper yoke is attached on the end face of the upper end of described center pillar, and described lower yoke is attached on the end face of the lower end of described center pillar.
Wherein, described center pillar forms by metal magnetic plug is bonding, and each center pillar all adopts that 3 iron silica magnetic particle plugs are bonding to be formed, and each magnetic pre-threading travel is Φ 60*30.
Wherein, described upper yoke and lower yoke are laminated by amorphous sheet, and the material of amorphous sheet is Fe-based amorphous band.
The reactor that the utility model provides, comprises any one core structure above-mentioned, and around 26 circle coils of described magnetic circuit.
Comparative example
The core structure that this comparative example provides, comprises the magnetic circuit be made up of metal magnetic powder core and silicon steel.
Wherein, described core structure comprises two center pillars be made up of metal magnetic powder core and the upper yoke be made up of silicon steel and lower yoke, described upper yoke is positioned at the upper end of described center pillar, and described lower yoke is positioned at the lower end of described center pillar, and described center pillar, upper yoke become described magnetic circuit with lower yoke piece.
Wherein, described upper yoke is attached on the end face of the upper end of described center pillar, and described lower yoke is attached on the end face of the lower end of described center pillar.
Wherein, described center pillar forms by metal magnetic plug is bonding, and each center pillar all adopts that 3 iron silica magnetic particle plugs are bonding to be formed, and each magnetic pre-threading travel is Φ 60*30.
Wherein, described upper yoke and lower yoke are laminated by silicon steel sheet.
The reactor that the utility model provides, comprises any one core structure above-mentioned, and around 26 circle coils of described magnetic circuit.
In order to verify performance of the present utility model, by the assembly in embodiment and comparative example, under the same conditions, line bag is identical, and test environment is identical, respectively tester inductance value, loss, and measure the volume of reactor, and by above-mentioned sample and the contrast data of sample and outcome record in Table 1.
Table 1
| The sample that embodiment provides | The contrast sample that comparative example provides | |
| The specification of upper yoke and lower yoke | Amorphous band 160*60*60 | Iron silica flour core 160*60*50 |
| Bias inductors | 134.3μH@325A | 123.2μH@325A |
| Loss | 20.4W@325A | 24.5W@325A |
| Cost | 400 yuan | 535 yuan |
Known by the contrast in table 1, sample and the contrast of contrast sample, both inductance are suitable, and the embodiment loss that the utility model provides is less, small volume, cost are lower; Therefore the core structure that provides of the utility model and reactor have that loss is less, small volume and the low feature of cost, be better than prior art.
Therefore, core structure of the present utility model is by being jointly based upon on same magnetic circuit by metal magnetic powder core and non-crystal block, on the basis keeping higher inductance value, lower noise, the loss with the reactor of this magnetic core, the overall dimensions reducing reactor can be reduced further, reduce costs.
Claims (7)
1. a core structure, is characterized in that: comprise the magnetic circuit be made up of metal magnetic powder core and non-crystal block; Described core structure comprises at least two center pillars be made up of metal magnetic powder core and the upper yoke be made up of non-crystal block and lower yoke, described upper yoke is positioned at the upper end of described center pillar, described lower yoke is positioned at the lower end of described center pillar, and described center pillar, upper yoke become described magnetic circuit with lower yoke piece.
2. core structure according to claim 1, is characterized in that: described core structure comprises two center pillars.
3. core structure according to claim 1 and 2, is characterized in that: described upper yoke is attached on the end face of the upper end of described center pillar, and described lower yoke is attached on the end face of the lower end of described center pillar.
4. core structure according to claim 1 and 2, is characterized in that: described upper yoke is between the upper end of two described center pillars, and described lower yoke is between the lower end of two described center pillars.
5. core structure according to claim 1, is characterized in that: described center pillar forms by metal magnetic plug is bonding.
6. core structure according to claim 1, is characterized in that: described upper yoke and lower yoke are laminated by amorphous sheet.
7. a reactor, is characterized in that, comprises core structure as described in any one of claim 1 to 6, and around the multiturn coil of described magnetic circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175356.4U CN204155715U (en) | 2014-04-11 | 2014-04-11 | A kind of core structure and there is the reactor of this core structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175356.4U CN204155715U (en) | 2014-04-11 | 2014-04-11 | A kind of core structure and there is the reactor of this core structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204155715U true CN204155715U (en) | 2015-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420175356.4U Expired - Fee Related CN204155715U (en) | 2014-04-11 | 2014-04-11 | A kind of core structure and there is the reactor of this core structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204155715U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097222A (en) * | 2015-07-22 | 2015-11-25 | 上海正泰电源系统有限公司 | Magnetic coupling inductor of interleaving parallel converter and magnetic core |
| CN106950515A (en) * | 2015-11-02 | 2017-07-14 | Tdk株式会社 | Magnetic Sensor and the current sensor for possessing it |
-
2014
- 2014-04-11 CN CN201420175356.4U patent/CN204155715U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097222A (en) * | 2015-07-22 | 2015-11-25 | 上海正泰电源系统有限公司 | Magnetic coupling inductor of interleaving parallel converter and magnetic core |
| CN106950515A (en) * | 2015-11-02 | 2017-07-14 | Tdk株式会社 | Magnetic Sensor and the current sensor for possessing it |
| CN106950515B (en) * | 2015-11-02 | 2018-10-02 | Tdk株式会社 | Magnetic Sensor and the current sensor for having it |
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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: 20150211 Termination date: 20170411 |