CN201311809Y - I-shaped inducer - Google Patents
I-shaped inducer Download PDFInfo
- Publication number
- CN201311809Y CN201311809Y CNU2008201688292U CN200820168829U CN201311809Y CN 201311809 Y CN201311809 Y CN 201311809Y CN U2008201688292 U CNU2008201688292 U CN U2008201688292U CN 200820168829 U CN200820168829 U CN 200820168829U CN 201311809 Y CN201311809 Y CN 201311809Y
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- magnetic core
- coil
- vibration
- shape
- insulating base
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Abstract
The utility model relates to an I-shaped inducer comprising an I-shaped magnetic core, a coil wound on the I-shaped magnetic core and a down-lead pin for connecting ends of the coil. The inducer is characterized by further comprising an insulating base for fixing the magnetic coil and the down-lead pin which is arranged on the insulating base. Compared with the prior art, the insulating base is added in the inducer, the down-lead pin is moved to the insulating base, thereby the original rigid connection between the magnetic core and the down-lead pin is changed into the soft connection only through the ends of the coil, and the magnetic power generated by the magnetic core is no longer transmitted to a PCB plate through the down-lead pin. Simultaneously, an anti-vibration protective body between the magnetic core and the insulating base is utilized to enable most vibration generated by the magnetic core to be absorbed by the anti-vibration protective body, and the insulation of the anti-vibration protective body is used to enable the vibration of the magnetic core not to be directly transmitted to the base and the PCB plate, thereby greatly reducing the vibration noise of an external circuit.
Description
Technical field
The utility model relates to a kind of inductor, specifically refers to a kind of I shape inductor.
Background technology
Utilize in the electronic installation or equipment of magnetic field work at some, have the influence of effect such as magnetostriction, promptly kicker magnet is under magnetized state, and its volume and shape can change.As common dimmable ballast, generally adopt I shape magnetic as inductance element, coil winding is on this inductance element, and terminal pin is fixed in the termination of coil, and terminal pin is directly to be bonded on the fairlead of magnetic core.As the Chinese patent notification number is structure " the I shape inductor " of CN2502380 just disclosed.Because magnetic core can produce vibration because of magnetostrictive effect when work, therefore the inductor of said structure can produce following defective when work, be that the vibration meeting of magnetic core when work passes to external PCB circuit board by pin, the operating circuit that make to connect this inductance element can produce apparent in view vibrating noise, thereby makes the service behaviour variation of circuit.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of I shape inductor that can effectively reduce the external circuits vibrating noise at above-mentioned prior art present situation.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: the terminal pin that this I shape inductor includes the I shape magnetic core, is wrapped in the coil on this I shape magnetic core and connects for coil end, it is characterized in that: also comprise the insulator foot of fixing described magnetic core, and above-mentioned terminal pin is arranged on this insulator foot.
In order further to reduce vibration, between described magnetic core and insulator foot, also be provided with anti-vibration protected body; This anti-vibration protected body can design and be a tubulose body; this tubulose body is set on the outer surface of I shape magnetic core; the I shape magnetic core that promptly is wound with coil is all coated by this tubulose body, and this moment, the termination of coil can cause by the port of this tubulose body on the described terminal pin.In order to reduce the coiling length of coil end in the such scheme, above-mentioned tubulose body also can be spliced by first body and second body, and the termination of described coil causes on the described terminal pin by the slit between this first body and second body.Certainly above-mentioned anti-vibration protected body also can design body in the form of sheets, and these plates are placed on the contact-making surface between described magnetic core and the insulator foot, and such scheme can reach the purpose that reduces to vibrate equally.
Compared with prior art, owing to set up insulator foot in the utility model, and terminal pin is moved on this insulator foot, make between magnetic core and the terminal pin and only to change into by being flexible coupling that coil end carries out, thereby the magnetic that produces of magnetic core is moving no longer passes to pcb board by terminal pin by original being rigidly connected.Utilize the anti-vibration protected body between magnetic core and the insulator foot simultaneously, the vibration major part that magnetic core is produced is absorbed by anti-vibration protected body; And by means of the isolation of this anti-vibration protected body, make the vibration of magnetic core can not be directly passed to base, more can not be directly delivered to pcb board, thereby greatly reduce the vibrating noise of external circuit.
Description of drawings
Fig. 1 is the structure cutaway view of the utility model embodiment.
Fig. 2 is that A-A shown in Figure 1 is to cutaway view.
Fig. 3 is a upward view shown in Figure 2.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As Fig. 1～shown in Figure 3, be the inductor concrete structure schematic diagram of present embodiment.
This inductor includes an I shape magnetic core 1, is wound with the coil of being made up of enamelled wire 2 on this I shape magnetic core 1, also is arranged with anti-vibration protected body on the outer circumference surface of this I shape magnetic core 1.In the present embodiment, this anti-vibration protected body is designed to the tubulose body 3 by the silicon rubber making, and this tubulose body 3 is spliced by first body 31 and second body 32.Certain above-mentioned tubulose body also can be made by other material, and generally adopting shore hardness is 20～80 elastomeric material.The bottom of above-mentioned I shape magnetic core 1 is fixed with insulator foot 4, and this insulator foot 4 also is provided with two terminal pins 41 that are used for the connection PCB plate in the bottom.Draw from first body 31, second body 32 termination 21 of above-mentioned coil 2, and two terminations 21 are welded on respectively on two terminal pins 41 of insulator foot 4.
Because the periphery of magnetic core has been nested with the tubulose body of being made by silicon rubber 3, thereby when inductor is worked, the tubulose body that the vibration major part that magnetic core produces is made by silicon rubber absorbs, and, isolate by this tubulose body again between magnetic core and the base, the termination of coil is to be welded on the terminal pin of insulator foot, when inductor is welded on the pcb board, pcb board is to realize current lead-through by terminal pin on the insulator foot and coil, thereby the vibration of having avoided magnetic core is directly delivered on the PCB circuit board, greatly reduce the vibrating noise of pcb board, make circuit board can obtain better service behaviour.
Claims (5)
1, a kind of I shape inductor, the terminal pin that includes the I shape magnetic core, is wrapped in the coil on this I shape magnetic core and connects for coil end, it is characterized in that: also comprise the insulator foot of fixing described magnetic core, and above-mentioned terminal pin is arranged on this insulator foot.
2, I shape inductor according to claim 1 is characterized in that: be provided with anti-vibration protected body between described magnetic core and the insulator foot.
3, I shape inductor according to claim 2; it is characterized in that: described anti-vibration protected body design is a tubulose body; this body is set on the outer surface of described I shape magnetic core, and the port of the termination of described coil by this body causes on the described terminal pin.
4, I shape inductor according to claim 3 is characterized in that: described tubulose body is spliced by first body and second body, and the termination of described coil causes on the described terminal pin by the slit between this first body and second body.
5, I shape inductor according to claim 2 is characterized in that: described anti-vibration protected body designs body in the form of sheets, and these plates are placed on the contact-making surface between described magnetic core and the insulator foot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201688292U CN201311809Y (en) | 2008-11-26 | 2008-11-26 | I-shaped inducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201688292U CN201311809Y (en) | 2008-11-26 | 2008-11-26 | I-shaped inducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201311809Y true CN201311809Y (en) | 2009-09-16 |
Family
ID=41109066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201688292U Expired - Lifetime CN201311809Y (en) | 2008-11-26 | 2008-11-26 | I-shaped inducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201311809Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110637402A (en) * | 2017-05-18 | 2019-12-31 | 株式会社自动网络技术研究所 | Electrical junction box |
-
2008
- 2008-11-26 CN CNU2008201688292U patent/CN201311809Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110637402A (en) * | 2017-05-18 | 2019-12-31 | 株式会社自动网络技术研究所 | Electrical junction box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090916 |
|
| CX01 | Expiry of patent term |