CN209843425U - Three-pin common mode inductor - Google Patents
Three-pin common mode inductor Download PDFInfo
- Publication number
- CN209843425U CN209843425U CN201920373566.7U CN201920373566U CN209843425U CN 209843425 U CN209843425 U CN 209843425U CN 201920373566 U CN201920373566 U CN 201920373566U CN 209843425 U CN209843425 U CN 209843425U
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- coil
- wiring end
- pin
- magnetic core
- winding
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Abstract
The utility model relates to an electron field discloses a tripod common mode inductance, included ring type magnetic core and base, the magnetic core on be provided with first coil, second coil, the winding of first coil and second coil is to opposite direction, the both ends of first coil, second coil are wiring end I and wiring end II respectively, the base on be equipped with a plurality of pins, the pin includes winding portion and paster portion, wiring end I and the winding portion of same pin of first coil and second coil are connected, wiring end II and the winding portion of the pin of difference of first coil and second coil are connected, the utility model discloses have that electromagnetic interference is little, the direct current internal resistance is little, power loss is little, the temperature rise electric current is low to the constant voltage problem of MOS pipe has been solved effectively.
Description
Technical Field
The utility model relates to the field of electronics, especially a tripod common mode inductance.
Background
Common mode inductors, also called common mode chokes, are commonly used electronic components; the common-mode inductor is a common-mode interference suppression device which takes ferrite as a magnetic core, and two coils with the same size and the same number of turns are symmetrically wound on the same ferrite annular magnetic core to form a four-terminal device. At present, some current common mode inductors, when its electric current that passes through is great, it is comparatively serious to generate heat, can influence common mode inductor's operational reliability greatly, can produce the security problem during the use, and its processing technology of current common mode inductor all has the copper line at least four pads in addition, makes whole processing comparatively complicated, and production efficiency obtains not improving, and the phase change has increased manufacturing cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a tripod common mode inductance to solve prior art's problem.
For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a tripod common mode inductance, included ring type magnetic core and base, the magnetic core on be provided with first coil, second coil, winding to opposite direction of first coil and second coil, the both ends of first coil, second coil are wiring end I and wiring end II respectively, the base on be equipped with a plurality of pins, the pin includes winding portion and paster portion, wiring end I and the winding portion of same pin of first coil and second coil are connected, the wiring end II of first coil and second coil is connected with the winding portion of different pins.
From the above description, through will be on same magnetic core, wind to the wiring end I connection of two sets of coils opposite on same pin, this pin is public foot, and the wiring end II of first coil and second coil is connected with the wire winding portion of different pins, has realized the unique structure of three-legged common mode inductance, and the pin that does not have the wiring end connection with the coil is empty foot, the utility model discloses it is little to have electromagnetic interference, direct current internal resistance is little, power loss is little, the temperature rise electric current is low to the constant voltage problem of MOS pipe can be solved effectively.
Furthermore, the wiring end I and the wiring end II are connected with the pin winding part in a winding mode, and tin layers are wrapped at the winding positions of the wiring end I and the wiring end II and the pin winding part.
As can be seen from the above description, the wrapping of the tin layer at the winding position can effectively fix the terminal to the winding portion of the lead.
Furthermore, the magnetic core is a nickel-zinc magnetic core.
From the above description, the nickel-zinc magnetic core has the characteristics of high frequency, wide frequency, high impedance and low loss, and the nickel-zinc magnetic core can effectively reduce the power loss of the common mode inductor.
Furthermore, the patch part is of a bending structure.
As can be seen from the above description, the bending structure is designed for convenience in the subsequent patch application of the present invention.
The utility model discloses following beneficial effect has: the terminal I of two groups of coils which are opposite in winding direction on the same magnetic core is connected to the same pin, the pin is a public pin, the unique structure of the three-pin common-mode inductor is realized by arranging the public pin, and the product has the advantages of small electromagnetic interference, small direct current internal resistance, small power loss and low temperature rise current, and effectively solves the constant voltage problem of the MOS tube.
Drawings
Fig. 1 is a schematic top view of the present invention.
Fig. 2 is a schematic diagram of the structure viewed from the right side of the present invention.
FIG. 3 is a schematic left-side view of the structure of the present invention
Description of the main part symbols:
1: magnetic core, 2: base, 3: first coil, 4: second coil, 5: pin, 6: winding part, 7: patch portion, 8: terminal II, 9: terminal I, 10: common leg, 11: and (4) empty feet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1, 2, 3, the utility model discloses a tripod common mode inductance, including ring type magnetic core 1 and base 2, 1 be provided with first coil 3 on the magnetic core, second coil 4, winding to opposite direction of first coil 3 and second coil 4, first coil 3, the both ends of second coil 4 are wiring end I and wiring end II respectively, be equipped with four pins 5 on the base 2, four pin evenly distributed are in the four corners of base 2, pin 5 includes winding portion 6 and paster portion 5, wiring end I of first coil 3 and second coil 4 is connected with the winding portion 6 of same pin, this pin is public foot 10, wiring end II8 of first coil 3 and second coil 4 is connected with the winding portion 6 of different pin 5, the pin of not being connected with the wiring end of coil is empty foot 11, there is not the inductance.
The wiring end I9 and the wiring end II8 are connected with the winding part 6 of the pin 5 in a winding mode, the winding positions of the wiring end I9, the wiring end II8 and the winding part 6 of the pin are wrapped with tin layers, the magnetic core 1 is a nickel-zinc magnetic core, and the patch part 7 is of a bending type structure.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (4)
1. The utility model provides a tripod common mode inductance, its characterized in that has included ring type magnetic core and base, the magnetic core on be provided with first coil, second coil, winding to opposite direction of first coil and second coil, the both ends of first coil, second coil are wiring end I and wiring end II respectively, the base on be equipped with a plurality of pins, the pin includes wire winding portion and paster portion, wiring end I and the wire winding portion of same pin of first coil and second coil are connected, the wiring end II of first coil and second coil is connected with the wire winding portion of different pins.
2. The three-pin common mode inductor of claim 1, wherein: the wiring end I and the wiring end II are connected with the pin winding part in a winding mode, and tin layers are wrapped at the winding positions of the wiring end I and the wiring end II and the pin winding part.
3. A three-pin common mode inductor according to claim 1 or 2, characterized in that: the magnetic core is made of nickel-zinc magnetic core.
4. The three-pin common mode inductor of claim 3, wherein: the patch part is of a bending structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920373566.7U CN209843425U (en) | 2019-03-22 | 2019-03-22 | Three-pin common mode inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920373566.7U CN209843425U (en) | 2019-03-22 | 2019-03-22 | Three-pin common mode inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209843425U true CN209843425U (en) | 2019-12-24 |
Family
ID=68907620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920373566.7U Expired - Fee Related CN209843425U (en) | 2019-03-22 | 2019-03-22 | Three-pin common mode inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209843425U (en) |
-
2019
- 2019-03-22 CN CN201920373566.7U patent/CN209843425U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20191224 Termination date: 20210322 |