CN201994155U - Integrally formed powder pressure type inductor - Google Patents
Integrally formed powder pressure type inductor Download PDFInfo
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- CN201994155U CN201994155U CN2010206958613U CN201020695861U CN201994155U CN 201994155 U CN201994155 U CN 201994155U CN 2010206958613 U CN2010206958613 U CN 2010206958613U CN 201020695861 U CN201020695861 U CN 201020695861U CN 201994155 U CN201994155 U CN 201994155U
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- inductor
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Abstract
The utility model discloses an integrally formed powder pressure type inductor, which comprises a magnetic conducting body and an enameled wire coil integrally formed with the magnetic conducting body, wherein the coil comprises a body (203) and an extending part, materials for forming the magnetic conducting body are tightly filled inside the body (203) and are tightly covered outside the body (203), and the extending part is vertical to the axial line of the coil body (203) and extends out of one side surface of the magnetic conducting body for forming a lead pin (204) of the inductor. In the technical scheme of the integrally formed powder pressure type inductor, because the lead pin is vertical to the magnetic field direction of the magnetic conducting body, the magnetic force line passing area is enlarged, the effective magnetic flex area is increased, further, the magnetic saturation of the inductor is improved, the inductor can bear stronger current, the use range is wider, and the practicability is high.
Description
Technical field
The utility model relates to inductor, relates in particular to a kind of integrally-forming compacting inductor.
Background technology
At present, the main composition parts of inductor are coil and magnetic conductor, and magnetic conductor wherein can be magnetic core, iron core or copper core.In the existing inductor product, that the shape of magnetic conductor is generally is cylindrical, I-shaped, annular etc.; Enamelled wire is wound in the outside of magnetic conductor to form coil, finally constitutes cylindrical inductor, I-shaped inductor and toroidal inductor respectively; The common trait of three kinds of inductors is: coil winding is in the outside of magnetic conductor, because such inductor is not integrated, its internal structure defective tightness can cause problems such as inductance value decline, the saturated poor performance of anti-direct current.In addition, the coil of this type of inductor needs artificial the winding, so production efficiency is low.
The key that addresses the above problem is the integrated of coil and magnetic conductor, and a kind of integrated technique is arranged at present, and its mould molding figure as Figure 1-1.In this technology, coil is put into a die casting chamber, add the powder that forms magnetic conductor, carry out die casting and handle, this coil extends to the electrode tip of the part of this magnetic conductor outside for this inductor, thereby carries out integrated molding.In this technology, because electrode tip is with the magnetic direction parallel (shown in Fig. 1-2) of this magnetic conductor, effectively the magnetic flux area is limited, therefore magnetic saturation is not high, and then the current value that causes this inductor to bear is not high enough, therefore can only be applied to limit the scope of application of this inductor in the environment of low current.
In addition, in this technology, the surface of magnetic conductor is smooth, and area of dissipation is certain, when inductor owing to having internal resistance to produce heat, this inductor heat radiation is slow, to certain influence is arranged in useful life of this inductor.
The utility model content
The technical problems to be solved in the utility model is, in the prior art, because the magnetic flux area is smaller, causes magnetic saturation not high, so this inductor can not bear bigger electric current, causes the scope of application of this inductor narrow, and practicality is not strong.Above-mentioned defective at prior art provides a kind of integrally-forming compacting inductor.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of integrally-forming compacting inductor, comprise that magnetic conductor reaches and the integrated enamelled wire coil of described magnetic conductor, described coil comprises coil main body and extension, the material that constitutes described magnetic conductor closely is filled in the inside of described coil main body, and closely is coated on the outside of described coil main body, described extension is perpendicular to the axis of described coil main body, and a side that reaches described magnetic conductor forms the pin of this inductor.
Preferably, the top of described magnetic conductor and bottom are respectively arranged with at least one groove.
Preferably, described groove comprises U type groove.
Preferably, described groove comprises square groove.
Preferably, described groove comprises circular groove.
Preferably, described enamelled wire coil is to be formed by the flat wire coiling.
Preferably, described coil main body is a single layer coil, and described pin is on the diagonal of described side.
Preferably, described coil main body is a spiral coil, and described pin equates with the top of described inductor and the distance of bottom.
Use the technical solution of the utility model, has following beneficial effect: because extension is perpendicular to the axis of described coil main body, and this axis is inevitable parallel with the magnetic direction of described magnetic conductor, therefore this extension is vertical with the magnetic direction of magnetic conductor, thereby increased the magnetic flux area, improved the magnetic saturation of inductor, this inductor can bear bigger electric current, scope of application broad, practical.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1-the 1st, the mould molding schematic diagram of one-body molded inductance of the prior art;
Fig. 1-2 is that the magnetic direction of inductor of the prior art and the position of electrode tip concern schematic diagram;
Fig. 2-the 1st, the mould molding schematic diagram of integrally-forming compacting inductor of the present utility model;
Fig. 2-the 2nd, the integrally-forming compacting inductor magnetic direction of the utility model embodiment and the position of electrode tip concern schematic diagram;
Fig. 3-the 1st, the pin of the integrally-forming compacting inductor of the utility model one embodiment are all at the end view of a side of inductor;
Fig. 3-the 2nd, the pin of the integrally-forming compacting inductor of the utility model one embodiment are all at the vertical view of a side of inductor;
Fig. 3-the 3rd, the pin of the integrally-forming compacting inductor of the utility model one embodiment are all at the front view of a side of inductor;
Fig. 3-the 4th, the pin of the integrally-forming compacting inductor of the utility model one embodiment are all at the cutaway view of a side of inductor;
Fig. 3-the 5th, the pin of the integrally-forming compacting inductor of the utility model one embodiment are all at the end view of the center line of inductor;
Fig. 3-the 6th, the pin of the integrally-forming compacting inductor of the utility model one embodiment are all at the vertical view of the center line of inductor;
Fig. 3-the 7th, the pin of the integrally-forming compacting inductor of the utility model one embodiment are all at the front view of the center line of inductor;
Fig. 3-the 8th, the pin of the integrally-forming compacting inductor of the utility model one embodiment are all at the cutaway view of the center line of inductor;
Fig. 3-the 9th, the pin of the integrally-forming compacting inductor of the utility model one embodiment are all at cornerwise end view of inductor;
Fig. 3-the 10th, the pin of the integrally-forming compacting inductor of the utility model one embodiment are all at cornerwise vertical view of inductor;
Fig. 3-the 11st, the pin of the integrally-forming compacting inductor of the utility model one embodiment are all at cornerwise front view of inductor;
Fig. 3-the 12nd, the pin of the integrally-forming compacting inductor of the utility model one embodiment are all at cornerwise cutaway view of inductor;
Fig. 4-the 1st, the pin of the integrally-forming compacting inductor of the utility model one embodiment is the stereogram of the inductor on the center line of inductor all;
Fig. 4-the 2nd, the pin of the integrally-forming compacting inductor of the utility model one embodiment are all at the stereogram of the inductor of a side of inductor;
Fig. 4-the 3rd, the pin of the integrally-forming compacting inductor of the utility model one embodiment is the stereogram of the inductor on the diagonal of inductor all.
Embodiment
In the integrally-forming compacting inductor in the utility model, comprise that magnetic conductor reaches and the integrated enamelled wire coil of described magnetic conductor, described coil comprises main body and extension, the material that constitutes described magnetic conductor closely is filled in the inside of described main body, and closely is coated on the outside of described main body, wherein, described extension is perpendicular to the axis of described coil main body, and a side that reaches described magnetic conductor forms the pin of this inductor.
Particularly, this enamelled wire coil can design according to user's needs, the enamelled wire coil is to be formed by the flat wire coiling, and that the coiling mode has is multiple, can turn to a coil on same plane, also flat wire spiral coil can be turned to, therefore the coil of individual layer and the coil of multilayer can be divided into.And in the present embodiment, as preferably, be that flat wire is turned to spiral coil.Wherein, the number of plies of coil also can design according to the actual requirements, and the design of the extension of this coil also is to design according to user's needs, as preferably, this real-time example has designs different in 3, to shown in Fig. 3-12, is enamelled wire coil design different in 3 as Fig. 3-1.Wherein, among Fig. 3-1, two pins of this coil are drawn from bottom coil, the side view of this coil as Fig. 3-2 to shown in the 3-4; As Fig. 3-5 to shown in the 3-8, two pins of this coil stretch out from the bottom and the top of coil, then mind-set one end stretches out by the center of curved axis direction to this coil and from this, and therefore this moment, pin 204 all equated to the top of this coil and the distance of bottom.To shown in the 3-12, two pins of this coil are from the bottom of coil and the top is equidirectional stretches out as Fig. 3-9, and these two pins are in the top and the bottom of this coil respectively.Above-mentioned pin all with the axis normal of residing coil itself, and described axis is parallel with the magnetic direction of described magnetic conductor, therefore, this pin is vertical with the magnetic direction of described magnetic conductor.
Shown in Fig. 2-1, be the state diagram of inductor preparation in the present embodiment.Wherein, the instrument of making this inductor comprises the mould external member, and this mould external member comprises patrix 201, movable fast 202, counterdie 205, baffle plate 206 and 207.This coil comprises main body 203 and extension, wherein, the part that this extension stretches out a side of magnetic conductor is a pin 204, and a side of movable block 202 can have the jack that is positioned at differing heights or position as required, this jack is used for fixing described extension, and also convenient described extension stretches out described inductor.In the process of preparation, at first the extension of coil 203 is stretched into the jack of this movable block 202, then place the powder that constitutes described magnetic conductor in the inside of described counterdie 205 as required, wherein, this powder is to be prepared from according to a certain percentage by high magnetic flux alloy magnetic powder and materials such as low magnetic flux alloy powder and lubricant.Then this coil and movable block are built in the inside of described counterdie 205, again at the inside and the outside powder that adds of described coil.Afterwards, press down described patrix 201, and promote described baffle plate 206 left simultaneously, promote described baffle plate 207 to the right, magnetic conductor powder and enamelled wire coil are cast into a complete inductor blank.After this blank taking-up, blank is shown in Fig. 2-2.Because the lower surface of this patrix 201 and the upper surface of described counterdie 205 are provided with at least one tongue (not shown), so corresponding two surfaces up and down of the inductor blank that forms of die casting all are provided with at least one fluted 208.Wherein, this groove 208 is corresponding with the position of tongue.Particularly, the shape of this groove 208 can be U type groove, square groove, circular groove, can also be the groove of other shapes, this is not limited herein.And the structure shown in Fig. 2-2 is a preferred embodiment of the present utility model.
Particularly, this enamelled wire coil is to be formed by the flat wire coiling, and the main body of this coil can be a single layer coil, and when being single layer coil, this pin is on the diagonal of its side of stretching out.But when this coil comprised more than one deck coil, the position between this pin then can have multiple.Described below is several preference of the present utility model.When the extension of this enamelled wire coil stretches out from a side of this inductor, extension becomes the pin 204 of this inductor, when 2 pins 204 of this inductor when bottom coil is drawn, described 2 pins are positioned at a side on its surface of stretching out, and this inductor stereogram is shown in Fig. 4-1; When two pins of this coil stretch out from two bottom surfaces of coil, then and when the end at this center stretches out by the center of curved axial direction to this coil, this inductor stereogram is shown in Fig. 4-2, and this moment, the pin place all equated with the top of this inductor and the distance of bottom.When two pins of this coil from the bottom of coil and the top is equidirectional stretches out, these two pins are in the top and the bottom of this coil respectively, this moment, pin was in one side of described side, this inductor stereogram is shown in Fig. 4-3.
Then, the inductor that this die casting is finished is inserted a baking oven (not shown), 100 ℃～120 ℃ of baking temperatures, stoving time 60～90 minutes can obtain the inductor of finished product.
What deserves to be mentioned is, this pin is with the axis normal of the main body 203 of described coil, and the magnetic direction of this magnetic conductor is with this parallel axes, therefore, no matter this pin 204 is in any position of side that this inductor stretches out the extension of enamelled wire coil, can guarantee the magnetic direction of this pin perpendicular to this magnetic conductor.By Fig. 2-1 and 2-2 as can be seen, this pin 204 is perpendicular to the axis of described coil main body 203, and promptly this pin is perpendicular to the magnetic direction of described magnetic conductor.Become big because this pin, passes the area of the magnetic line of force perpendicular to the magnetic direction of described magnetic conductor, therefore effectively the magnetic flux area increases, and then improves the magnetic saturation of inductor, so this inductor can bear bigger electric current, and scope of application broad is practical.
In addition, because this inductor is in use because of there being internal resistance to generate heat, and this is provided with at least one groove 208 in corresponding two surfaces up and down of the inductor of example in real time, can increase area of dissipation effectively, and then help heat radiation, reduce owing to the influence of the heat that produces the useful life of this inductor.Thereby improve the useful life of inductor.
Moreover because the pin of this inductor is all perpendicular to the magnetic direction of the magnetic conductor of this inductor, and the distance between the pin is to design according to user's request, and flexibility is strong, the demand of being close to the users; In addition, described enamelled wire coil is to be formed by the flat wire coiling, therefore can select lead number and spacing more neatly, makes on line more convenient, significantly reduces the volume of inductor, reduces production costs, and enhances productivity.
Claims (8)
1. integrally-forming compacting inductor, comprise that magnetic conductor reaches and the integrated enamelled wire coil of described magnetic conductor, described coil comprises coil main body (203) and extension, the material that constitutes described magnetic conductor closely is filled in the inside of described coil main body (203), and closely is coated on the outside of described coil main body (203), it is characterized in that, described extension is perpendicular to the axis of described coil main body (203), and a side that reaches described magnetic conductor forms the pin (204) of this inductor.
2. inductor according to claim 1 is characterized in that, the top of described magnetic conductor and bottom are respectively arranged with at least one groove (208).
3. inductor according to claim 2 is characterized in that, described groove (208) comprises U type groove.
4. inductor according to claim 2 is characterized in that, described groove (208) comprises square groove.
5. inductor according to claim 2 is characterized in that, described groove (208) comprises circular groove.
6. inductor according to claim 1 is characterized in that, described enamelled wire coil is to be formed by the flat wire coiling.
7. according to any described inductor of claim 1 to 6, it is characterized in that described coil main body is a single layer coil, described pin (204) is on the diagonal of described side.
8. according to any described inductor of claim 1 to 6, it is characterized in that described coil main body is a spiral coil, described pin (204) equates with the top of described inductor and the distance of bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206958613U CN201994155U (en) | 2010-12-31 | 2010-12-31 | Integrally formed powder pressure type inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206958613U CN201994155U (en) | 2010-12-31 | 2010-12-31 | Integrally formed powder pressure type inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201994155U true CN201994155U (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206958613U Expired - Fee Related CN201994155U (en) | 2010-12-31 | 2010-12-31 | Integrally formed powder pressure type inductor |
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| CN (1) | CN201994155U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887108A (en) * | 2017-11-28 | 2018-04-06 | 合肥博微田村电气有限公司 | It is integrally formed formula power inductor and its manufacture method |
-
2010
- 2010-12-31 CN CN2010206958613U patent/CN201994155U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887108A (en) * | 2017-11-28 | 2018-04-06 | 合肥博微田村电气有限公司 | It is integrally formed formula power inductor and its manufacture method |
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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 |
Granted publication date: 20110928 Termination date: 20141231 |
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| EXPY | Termination of patent right or utility model |