CN213303875U - Iron core structure with full shielding device - Google Patents
Iron core structure with full shielding device Download PDFInfo
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- CN213303875U CN213303875U CN202120673827.4U CN202120673827U CN213303875U CN 213303875 U CN213303875 U CN 213303875U CN 202120673827 U CN202120673827 U CN 202120673827U CN 213303875 U CN213303875 U CN 213303875U
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- iron core
- shielding
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- shielding cover
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Abstract
The utility model relates to an iron core structure with a full shielding device, which comprises an iron core, wherein the iron core is arranged in a closed shielding cover with a cavity, and the closed shielding cover is connected with a ground wire; fillers are filled between the iron core and the inner wall of the closed shielding cover; an input coil and an output coil are wound on the outer side of the closed shielding cover, and insulating layers are arranged between the input coil and the closed shielding cover and between the output coil and the closed shielding cover. The utility model discloses an install an enclosed type shield cover additional in the periphery of iron core, avoided because of the direct irreversible damage that leads to the fact consumer or electrical equipment through the iron core of high frequency harmonic voltage, improved the power consumption security greatly.
Description
Technical Field
The utility model belongs to the technical field of the power equipment accessory, concretely relates to take full shield assembly's iron core structure.
Background
The iron core plays a vital role in electric power equipment such as a mutual inductor, a transformer and the like, but most of the existing iron cores are exposed outside, or a shielding plate with limited length is arranged between the iron cores and the coil, so that the full shielding of the iron core cannot be realized; when high-frequency harmonic voltage occurs to power equipment or the power equipment generates the high-frequency harmonic voltage due to breakdown, emergency trip and the like, the high-frequency harmonic voltage passes through the incompletely shielded iron core and then is directly transmitted to the output coil or the input coil, so that the power equipment or the power equipment is damaged irreversibly. This is a disadvantage of the prior art.
In view of the above, the present invention provides an iron core structure with a full shielding device; it is very necessary to solve the above-mentioned defects existing in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a design iron core structure of taking full shield when power supply unit high frequency harmonic voltage appears or when power supply unit produces high frequency harmonic voltage because of reasons such as puncture, emergency tripping, to the technical defect who causes irreversible damage for power supply unit or power supply unit that exists among the prior art to solve the problem that exists among the prior art.
In order to achieve the above purpose, the utility model provides the following technical scheme:
an iron core structure with a full shielding device comprises an iron core, wherein the iron core is arranged in a closed shielding cover with a cavity, and the closed shielding cover is connected with a ground wire;
fillers are filled between the iron core and the inner wall of the closed shielding cover; an input coil and an output coil are wound on the outer side of the closed shielding cover, and insulating layers are arranged between the input coil and the closed shielding cover and between the output coil and the closed shielding cover.
Preferably, a shielding cylinder is further sleeved outside the insulating layer, and the input coil and the output coil are wound outside the shielding cylinder to shield leakage flux and reduce loss and heat generation caused by the leakage flux of the toroidal core.
Preferably, the iron core is formed by butting the first C-shaped iron core and the second C-shaped iron core at the opening, so that the excitation performance is good, and the iron core is easy to assemble and replace.
Preferably, the closed type shielding case is composed of a first shielding shell and a second shielding shell, the first shielding shell and the second shielding shell are butted to form the closed type shielding case with a cavity, and a joint is arranged at a butting joint.
Preferably, the width of the kerf is more than or equal to 1mm and less than or equal to 3mm, so that the closed type shielding cover is prevented from forming a short circuit turn.
Preferably, the closed shielding cover is an aluminum plate or stainless steel plate shielding cover with the thickness of 2mm or 3mm, so that the cost is saved.
Preferably, the insulating layer is an insulating cylinder sleeved outside the closed type shielding cover or an insulating paint layer coated on the surface of the closed type shielding cover, so that the service life of the iron core is prolonged.
The beneficial effects of the utility model reside in that, the utility model discloses an install an enclosed shield cover additional in the periphery of iron core, avoided because of the direct irreversible damage that leads to the fact consumer or power equipment of high frequency harmonic voltage through the iron core, improved the power consumption security greatly.
Furthermore, the utility model relates to a principle is reliable, and simple structure has very extensive application prospect.
Therefore, compared with the prior art, the utility model has the outstanding substantive features and remarkable progress, and the beneficial effects of the implementation are also obvious.
Drawings
Fig. 1 is a schematic structural diagram of a core with a full shield.
Fig. 2 is a sectional view taken along a-a in fig. 1.
The transformer comprises an input coil 1, a shielding cylinder 2, an insulating layer 3, a closed shielding cover 4, filler 5, an iron core 6, an output coil 7 and a cutting seam 8.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of specific examples, which are illustrative of the present invention and are not limited to the following embodiments.
As shown in fig. 1 and fig. 2, the iron core structure with the full shielding device according to the present embodiment includes an iron core 6, where the iron core 6 is formed by butting a first C-shaped iron core and a second C-shaped iron core at an opening, and has good excitation performance and is easy to assemble and replace; the iron core 6 is arranged in a closed type shielding cover 4 with a cavity, and the closed type shielding cover 4 is connected with a ground wire; the enclosed type shielding case 4 is composed of a first shielding shell and a second shielding shell, the first shielding shell and the second shielding shell are butted to form the enclosed type shielding case 4 with a cavity, the utility model adopts a polyester film to wind and fix the first shielding shell and the second shielding shell; a joint seam 8 is arranged at the butt joint, the width of the joint seam 8 is more than or equal to 1mm and less than or equal to 3mm, so that the iron core is convenient to install, and the closed shielding case can be prevented from forming short-circuit turns; the enclosed shield cover 4 is an aluminum plate or stainless steel plate shield cover with the thickness of 2mm or 3mm, so that the cost is saved.
A filler 5 is filled between the iron core 6 and the inner wall of the closed type shielding case 4; an input coil 1 and an output coil 7 are wound on the outer side of the closed shielding case 4, insulating layers 3 are respectively arranged between the input coil 1 and the closed shielding case 4 and between the output coil 7 and the closed shielding case 4, and the insulating layers 3 are insulating cylinders sleeved on the outer side of the closed shielding case 4 or insulating paint layers coated on the surface of the closed shielding case 4; a shielding cylinder 2 is further sleeved on the outer side of the insulating layer 3, and the input coil 1 and the output coil 7 are wound on the outer side of the shielding cylinder 2 to shield magnetic leakage and reduce loss and heat caused by magnetic flux leakage of the annular iron core 6.
When high-frequency harmonic voltage appears in power supply equipment connected with the input coil 1, the high-frequency harmonic voltage is led into the ground when passing through the closed type shielding case 4 which is subjected to grounding treatment, and cannot be transmitted to the output coil 7 through electromagnetic induction of the iron core 6, so that irreversible damage to electric equipment caused by voltage waveform distortion is avoided.
When the electric equipment connected with the output coil 7 generates high-frequency harmonic voltage due to breakdown, emergency trip and the like, the high-frequency harmonic voltage is led into the ground when passing through the closed type shielding case 4 which is subjected to grounding treatment, and cannot be transmitted to the input coil 1 through the electromagnetic induction of the iron core 6, so that irreversible damage to power supply equipment due to reverse transmission of the high-frequency harmonic voltage is avoided.
The above disclosure is only for the preferred embodiments of the present invention, but the present invention is not limited thereto, and any person skilled in the art can think of the inventive changes, and several improvements and decorations made without departing from the principle of the present invention should fall within the protection scope of the present invention.
Claims (7)
1. The iron core structure with the full shielding device is characterized by comprising an iron core, wherein the iron core is arranged in a closed shielding cover with a cavity, and the closed shielding cover is connected with a ground wire;
fillers are filled between the iron core and the inner wall of the closed shielding cover; an input coil and an output coil are wound on the outer side of the closed shielding cover, and insulating layers are arranged between the input coil and the closed shielding cover and between the output coil and the closed shielding cover.
2. The iron core structure with the full shielding device according to claim 1, wherein a shielding cylinder is further sleeved outside the insulating layer, and the input coil and the output coil are wound outside the shielding cylinder.
3. The iron core structure with the full shielding device according to claim 1, wherein the iron core is formed by butting a first C-shaped iron core and a second C-shaped iron core at the opening.
4. The iron core structure with the full shielding device according to claim 1, wherein the closed shielding can is composed of a first shielding shell and a second shielding shell, the first shielding shell and the second shielding shell are butted to form the closed shielding can with a cavity, and a kerf is arranged at a butting interface.
5. The iron core structure with full shield of claim 4, wherein the width of said slit is greater than or equal to 1mm and less than or equal to 3 mm.
6. The iron core structure with the full shielding device according to claim 1, wherein the closed shielding can is an aluminum plate or stainless steel plate shielding can with a thickness of 2mm or 3 mm.
7. The iron core structure with the full shielding device according to claim 1, wherein the insulating layer is an insulating cylinder sleeved outside the closed shielding case or an insulating paint layer coated on the surface of the closed shielding case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120673827.4U CN213303875U (en) | 2021-04-01 | 2021-04-01 | Iron core structure with full shielding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120673827.4U CN213303875U (en) | 2021-04-01 | 2021-04-01 | Iron core structure with full shielding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213303875U true CN213303875U (en) | 2021-05-28 |
Family
ID=76017190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120673827.4U Active CN213303875U (en) | 2021-04-01 | 2021-04-01 | Iron core structure with full shielding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213303875U (en) |
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2021
- 2021-04-01 CN CN202120673827.4U patent/CN213303875U/en active Active
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