CN217008835U - Anti-electromagnetic interference horizontal common-mode high-power annular inductor - Google Patents
Anti-electromagnetic interference horizontal common-mode high-power annular inductor Download PDFInfo
- Publication number
- CN217008835U CN217008835U CN202122854359.3U CN202122854359U CN217008835U CN 217008835 U CN217008835 U CN 217008835U CN 202122854359 U CN202122854359 U CN 202122854359U CN 217008835 U CN217008835 U CN 217008835U
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- main
- electromagnetic interference
- heat dissipation
- packaging shell
- 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.)
- Active
Links
- 238000004806 packaging method and process Methods 0.000 claims abstract description 50
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 23
- 239000002826 coolant Substances 0.000 claims abstract description 18
- 239000003822 epoxy resin Substances 0.000 claims abstract description 17
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims description 40
- 230000017525 heat dissipation Effects 0.000 claims description 32
- 239000007788 liquid Substances 0.000 claims description 10
- 238000004804 winding Methods 0.000 description 12
- 239000004593 Epoxy Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007907 direct compression Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Landscapes
- Coils Or Transformers For Communication (AREA)
Abstract
The utility model discloses an anti-electromagnetic interference horizontal common-mode high-power annular inductor, wherein two coils are wound outside an annular ferrite core and do not intersect with each other, two ends of each coil are fixedly connected with external leads, the coils are fixedly connected inside enameled paper, the annular ferrite core is fixedly connected inside the enameled paper, and the enameled paper is fixedly connected inside an epoxy resin packaging layer. The heat of the coolant ring can be dissipated to the outside by the arrangement of the heat sink.
Description
Technical Field
The utility model relates to the field of inductors, in particular to an anti-electromagnetic interference horizontal common-mode high-power annular inductor.
Background
A common mode interference suppressing device using ferrite as magnetic core is composed of two coils with same size and number of turns, which are symmetrically wound on a ferrite ring core to form a four-terminal device, which has the suppressing action to show large inductance for common mode signal and little leakage inductance for differential mode signal.
The horizontal common-mode high-power annular inductor for resisting electromagnetic interference in the prior art still has defects, such as:
most of existing horizontal common-mode high-power annular inductors are few in types and single in style, most of the existing horizontal common-mode high-power annular inductors are used in a mode that coils are exposed outside, the coils are damaged by external rubber when used for a long time, metal wires are exposed outside, and when the coils are outside, external electromagnetic fields easily interfere with the inductors.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned drawbacks of the prior art, the present invention provides an anti-electromagnetic interference horizontal common-mode high-power ring inductor, so as to solve the above-mentioned problems in the background art.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an anti-electromagnetic interference's high-power annular inductor of horizontal common mode, includes major structure mechanism, shell mechanism, still includes: the main structural mechanism comprises a ferrite annular magnetic core, a coil, an external lead, enameled paper and an epoxy resin packaging layer;
a shell mechanism: the main structure mechanism is arranged on the side part of the main structure mechanism and is fixedly connected with the main structure mechanism;
the heat dissipation mechanism: and the main structure mechanism is arranged inside two sides of the shell mechanism and is fixedly connected with the main structure mechanism.
In a preferred embodiment, the outside of ferrite toroidal core is around having two coils and non-intersect, the both ends fixedly connected with external lead of coil, coil fixed connection is in the inside of enameled paper, ferrite toroidal core fixed connection is in the inside of enameled paper, enameled paper fixed connection is in the inside of epoxy encapsulated layer, through the setting of epoxy encapsulated layer, can wrap up ferrite toroidal core and coil completely, avoids electromagnetic interference in the air completely, through the setting of enameled paper, can prevent epoxy encapsulated layer and ferrite toroidal core contact, through the setting of external lead, plays the effect of guide current.
In a preferred embodiment, heat dissipation mechanism includes heat dissipation column ring, coolant liquid ring, fin, the heat dissipation column ring is the ring column type, the inside fixedly connected with coolant liquid ring of heat dissipation column ring, the coolant liquid ring is oval cylinder type, eight fins of the even fixedly connected with of one end lateral part of heat dissipation column ring, one side of fin is located the inside of coolant liquid ring, through the setting of heat dissipation column ring, through the setting of coolant liquid ring, can derive the inside heat of device, through the setting of fin, can carry out the heat of coolant liquid ring to outside and give off.
In a preferred embodiment, the housing mechanism comprises a main packaging shell, wrapping posts, board connecting wires and bottom connecting plates, wherein the main packaging shell is in an I shape, the wrapping posts are fixedly connected to four corners of the main packaging shell, the board connecting wires are fixedly connected to the tops of the wrapping posts, the four bottom connecting plates are fixedly connected to the bottom of the main packaging shell, the wire guiding plate can be used for guiding the wire to the side parts of the wrapping posts through the arrangement of the wrapping posts, the flow guiding is finished, the bottom connecting plates are used for avoiding heat generation to burn out the bottom plate when the main packaging shell is installed on the bottom plate, and the bottom connecting plates are used for facilitating connection with the bottom plate through the arrangement of the board connecting wires.
In a preferred embodiment, the epoxy resin encapsulation layer is movably connected with the inside of the main packaging shell, one side of the heat dissipation column ring is fixedly connected with the inside of two sides of the main packaging shell, the external lead is fixedly connected with the inside of the main packaging shell, the epoxy resin encapsulation layer can be prevented from volatilizing through the arrangement of the main packaging shell, and the heat can be quickly dissipated by connecting two heat dissipation mechanisms.
In a preferred embodiment, the two sides of the top of the main packaging shell are fixedly connected with pressure resistant pads which are flat and are crushed by collision with the outside by adopting an over-height avoiding device.
In a preferred embodiment, the main packaging shell is of an I shape, four corners of the main packaging shell are flush with the external lead, and the wrapping posts are not arranged at the four corners of the main packaging shell, so that the occupied space is reduced.
The utility model has the technical effects and advantages that:
1. according to the utility model, the ferrite toroidal core and the coil can be completely wrapped by the epoxy resin packaging layer, so that electromagnetic interference in air is completely avoided, the epoxy resin packaging layer can be prevented from contacting the ferrite toroidal core by the arrangement of the enameled paper, and the effect of guiding current is achieved by the arrangement of the external lead.
2. The utility model can lead out the heat in the device through the arrangement of the heat dissipation column ring and the cooling liquid ring, and can dissipate the heat of the cooling liquid ring to the outside through the arrangement of the heat dissipation fins.
3. According to the utility model, the wire can be wound to the side part of the winding post through the arrangement of the winding post to complete flow guiding, the bottom plate is prevented from being burnt out by heat generated when the bottom plate is arranged on the bottom plate through the arrangement of the bottom connecting plate, and the bottom plate is conveniently connected with the bottom plate through the arrangement of the plate wiring.
4. According to the utility model, through the arrangement of the main packaging shell, the volatilization of the epoxy resin packaging layer can be avoided, and the heat can be quickly dissipated by connecting the two heat dissipation mechanisms, so that the equipment can be used for a long time, and the service life of the equipment can be prolonged.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the internal structure of the present invention.
Fig. 3 is an external structural view of the present invention.
Fig. 4 is a schematic structural diagram of a second embodiment of the present invention.
FIG. 5 is a schematic diagram of a third structure according to an embodiment of the present invention.
The reference signs are: 1. a main structural mechanism; 101. a ferrite toroidal core; 102. a coil; 103. an external lead; 104. enamelled paper; 105. an epoxy resin encapsulation layer; 2. a housing mechanism; 201. a main packaging shell; 202. a winding post; 203. plate wiring; 204. a bottom connecting plate; 3. a heat dissipation mechanism; 301. a heat-dissipating collar; 302. a coolant ring; 303. a heat sink; 4. a pressure resistant pad.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the drawings of the present invention, and the configurations of the structures described in the following embodiments are merely examples, and the horizontal common mode high power toroidal inductor for resisting electromagnetic interference according to the present invention is not limited to the structures described in the following embodiments, and all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The first embodiment is as follows:
the utility model provides an anti-electromagnetic interference horizontal common-mode high-power annular inductor, which comprises a main structure mechanism 1 and a shell mechanism 2 and also comprises the following components in parts by weight, with reference to fig. 1: the main structure mechanism 1 comprises a ferrite annular magnetic core 101, a coil 102, an external lead 103, an enamelled paper 104 and an epoxy resin packaging layer 105;
the shell mechanism 2: is arranged at the side part of the main structure mechanism 1 and is fixedly connected with the main structure mechanism 1;
the heat dissipation mechanism 3: is arranged inside two sides of the shell mechanism 2 and is fixedly connected with the main structure mechanism 1.
Referring to fig. 2, two coils 102 are wound outside a ferrite toroidal core 101 and do not intersect with each other, external leads 103 are fixedly connected to two ends of each coil 102, each coil 102 is fixedly connected to the inside of an enameled paper 104, each ferrite toroidal core 101 is fixedly connected to the inside of the enameled paper 104, each enameled paper 104 is fixedly connected to the inside of an epoxy resin packaging layer 105, the ferrite toroidal core 101 and each coil 102 can be completely wrapped by the epoxy resin packaging layer 105, electromagnetic interference in air is completely avoided, the epoxy resin packaging layer 105 can be prevented from contacting the ferrite toroidal core 101 by the arrangement of the enameled paper 104, and the arrangement of the external leads 103 plays a role in guiding current and reduces the possibility of line problems.
Referring to fig. 3, the heat dissipation mechanism 3 includes a heat dissipation column ring 301, a coolant ring 302, and heat dissipation fins 303, the heat dissipation column ring 301 is a ring column type, the inside fixedly connected with coolant ring 302 of the heat dissipation column ring 301, the coolant ring 302 is an elliptic cylinder type, eight heat dissipation fins 303 are uniformly fixedly connected with one end side portion of the heat dissipation column ring 301, one side of each heat dissipation fin 303 is located inside the coolant ring 302, the heat dissipation column ring 301 is set, the heat inside the device can be conducted out through the setting of the coolant ring 302, and the heat of the coolant ring 302 can be dissipated to the outside through the setting of the heat dissipation fins 303.
Referring to fig. 3, the housing mechanism 2 includes a main packaging case 201, a winding post 202, a board connecting line 203, and a bottom connecting board 204, the main packaging case 201 is an i-shaped case, four corners of the main packaging case 201 are fixedly connected with the winding posts 202, a top of the winding post 202 is fixedly connected with the board connecting line 203, and four bottom connecting boards 204 are fixedly connected with the bottom of the main packaging case 201, a wire can be wound to a side portion of the winding post 202 through the arrangement of the winding posts 202 to complete the flow guiding, and the bottom connecting board 204 is arranged to prevent the bottom board from being burned out due to heat when being installed on the bottom board, and is conveniently connected with the bottom board through the arrangement of the board connecting line 203.
Referring to fig. 2 and 3, the epoxy resin packaging layer 105 is movably connected to the inside of the main packaging shell 201, one side of the heat dissipation column ring 301 is fixedly connected to the two sides of the main packaging shell 201, the external lead 103 is fixedly connected to the inside of the main packaging shell 201, the volatilization of the epoxy resin packaging layer 105 can be avoided through the arrangement of the main packaging shell 201, and the heat can be quickly dissipated by connecting two heat dissipation mechanisms 3.
The working principle of the first embodiment of the utility model is as follows: when the device is used, a common mode interference suppression device with a ferrite toroidal core 101 is formed by symmetrically winding two coils 102 with the same size and the same number of turns on the same ferrite toroidal core 101 to form a four-terminal device, so that the device has a suppression effect on the large inductance presented by a common mode signal and hardly works on the small leakage inductance presented by a differential mode signal. The principle is that when a common mode current flows, magnetic fluxes in the magnetic rings are superposed with each other, so that the magnetic fluxes have a relatively large inductance value and play a role in inhibiting the common mode current, and when a differential mode current flows through the two coils 102, the magnetic fluxes in the ferrite toroidal core 101 are mutually cancelled, so that almost no inductance value exists, so that the differential mode current can pass through without attenuation, and therefore, the common mode inductance can effectively inhibit a common mode interference signal in a balanced line and has no influence on a differential mode signal normally transmitted by the line.
Example two:
referring to fig. 4, the top both sides fixedly connected with anti-pressure pad 4 of main packing shell 201, anti-pressure pad 4 are the platykurtic, through adopting anti-pressure pad 4, can install when narrow and small place, avoid the crushing, embodiment two lies in with the difference of embodiment one: the compression pad 4 is used instead of the direct compression.
Example three:
referring to fig. 5, the main packaging case 201 is of an i shape, four corners of the main packaging case 201 are flush with the external leads 103, and the space occupied by the main packaging case is reduced by adopting the structure without using the winding posts 202, and the difference between the second embodiment and the first embodiment is that: instead of using the winding posts 202, a manner of not using the winding posts 202 is employed.
Claims (7)
1. The utility model provides a high-power annular inductance of horizontal common mode of anti-electromagnetic interference, includes major structure mechanism (1), shell mechanism (2), its characterized in that still includes: the main structure mechanism (1) comprises a ferrite annular magnetic core (101), a coil (102), an external lead (103), enamelled paper (104) and an epoxy resin packaging layer (105);
housing means (2): the device is arranged on the side part of the main structural mechanism (1) and is fixedly connected with the main structural mechanism (1);
heat dissipation mechanism (3): is arranged inside two sides of the shell mechanism (2) and is fixedly connected with the main structure mechanism (1).
2. The horizontal common-mode high-power annular inductor capable of resisting electromagnetic interference according to claim 1, wherein: the coil is characterized in that two coils (102) are wound outside the ferrite annular magnetic core (101) and do not intersect with each other, two ends of each coil (102) are fixedly connected with an external lead (103), each coil (102) is fixedly connected to the inside of the corresponding enameled paper (104), the ferrite annular magnetic core (101) is fixedly connected to the inside of the corresponding enameled paper (104), and the enameled paper (104) is fixedly connected to the inside of the epoxy resin packaging layer (105).
3. The anti-electromagnetic interference horizontal common-mode high-power annular inductor according to claim 1, characterized in that: radiating mechanism (3) are including heat dissipation column ring (301), coolant liquid ring (302), fin (303), heat dissipation column ring (301) is the ring cylinder type, the inside fixedly connected with coolant liquid ring (302) of heat dissipation column ring (301), coolant liquid ring (302) are oval cylinder type, the even fixedly connected with eight fins (303) of the even fixedly connected with of one end lateral part of heat dissipation column ring (301), one side of fin (303) is located the inside of coolant liquid ring (302).
4. The anti-electromagnetic interference horizontal common-mode high-power annular inductor according to claim 1, characterized in that: the shell mechanism (2) comprises a main packaging shell (201), wrapping posts (202), board connecting plates (203) and bottom connecting plates (204), wherein the main packaging shell (201) is in an I shape, the wrapping posts (202) are fixedly connected to four corners of the main packaging shell (201), the board connecting plates (203) are fixedly connected to the tops of the wrapping posts (202), and the four bottom connecting plates (204) are fixedly connected to the bottom of the main packaging shell (201).
5. The anti-electromagnetic interference horizontal common-mode high-power annular inductor according to claim 3, wherein: the epoxy resin packaging layer (105) is movably connected with the inside of the main packaging shell (201), one side of the heat dissipation column ring (301) is fixedly connected with the inside of two sides of the main packaging shell (201), and the external lead (103) is fixedly connected with the inside of the main packaging shell (201).
6. The anti-electromagnetic interference horizontal common-mode high-power annular inductor according to claim 4, wherein: the two sides of the top of the main packaging shell (201) are fixedly connected with anti-pressure pads (4), and the anti-pressure pads (4) are flat.
7. The anti-electromagnetic interference horizontal common-mode high-power annular inductor according to claim 4, wherein: the main packaging shell (201) is of an I shape, and four corners of the main packaging shell (201) are flush with the external lead (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122854359.3U CN217008835U (en) | 2021-11-19 | 2021-11-19 | Anti-electromagnetic interference horizontal common-mode high-power annular inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122854359.3U CN217008835U (en) | 2021-11-19 | 2021-11-19 | Anti-electromagnetic interference horizontal common-mode high-power annular inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217008835U true CN217008835U (en) | 2022-07-19 |
Family
ID=82381671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122854359.3U Active CN217008835U (en) | 2021-11-19 | 2021-11-19 | Anti-electromagnetic interference horizontal common-mode high-power annular inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217008835U (en) |
-
2021
- 2021-11-19 CN CN202122854359.3U patent/CN217008835U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8043544B2 (en) | Method of manufacturing an encapsulated package for a magnetic device | |
| US20060097831A1 (en) | Power module | |
| CN209045285U (en) | A kind of heat-conducting type ring-shaped inductors shell | |
| EP4187562A1 (en) | Power inductor and preparation method therefor, and system-in-package module | |
| EP3109873A1 (en) | Inductor coil and electromagnetic component | |
| CN110323043A (en) | A semi-potted transparent high-voltage high-frequency transformer structure that can be serialized | |
| CN115458293A (en) | Inverter and Integrated Inductor | |
| TWI758226B (en) | Magnetic component structure with thermal conductive filler | |
| CN217008835U (en) | Anti-electromagnetic interference horizontal common-mode high-power annular inductor | |
| CN207909625U (en) | A kind of high-efficiency high frequency transformer of perfect heat-dissipating | |
| JP3646595B2 (en) | Static induction machine | |
| CN214175820U (en) | Planar transformer | |
| CN202720996U (en) | An Improved Structure of Transformer | |
| CN216698051U (en) | Common-differential-mode inductor for patch flat wire | |
| CN116598101A (en) | Low-leakage high-frequency power inductor | |
| CN116052982A (en) | High Frequency Transformer with Low Loss Core Construction | |
| CN222168111U (en) | Double-split transformer and coil structure thereof | |
| CN222952896U (en) | A transformer structure for reducing temperature rise | |
| EP0875908B1 (en) | High frequency transformer | |
| CN207052433U (en) | A kind of oil immersed type non-crystaline amorphous metal combined type distribution transformer | |
| CN215933304U (en) | Transformer with improved magnetic core structure | |
| CN115863025B (en) | Transformer of oil immersed generator | |
| CN222672780U (en) | Sinking direct-insertion common-mode inductor | |
| CN222106433U (en) | An oil-immersed distribution transformer coil | |
| CN220691852U (en) | A wire frame structure of a converter transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |