CN208548237U - Large power winding chip inductor - Google Patents
Large power winding chip inductor Download PDFInfo
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- CN208548237U CN208548237U CN201821153442.XU CN201821153442U CN208548237U CN 208548237 U CN208548237 U CN 208548237U CN 201821153442 U CN201821153442 U CN 201821153442U CN 208548237 U CN208548237 U CN 208548237U
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- magnetic core
- coil
- large power
- power winding
- chip inductor
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Abstract
The utility model provides a kind of large power winding chip inductor, including magnetic core and the coil being wound on the magnetic core, the bottom surface of the magnetic core is arranged at intervals with two attachment pins, the both ends of the coil are electrical connected with two attachment pins respectively, the periphery of the magnetic core offers annular groove, the coil is wound on the magnetic core and is placed in the annular groove, the coil includes two strands of conducting wires, in on the magnetic core, the both ends of each stock conducting wire are electrical connected with two attachment pins two strands of conducting wire wound side by side respectively.The utility model opens up annular groove by the periphery in magnetic core, to accommodate coil, guarantees that coil is firm and is mounted on magnetic core, improve the shock resistance of the inductor of production；And be wound on magnetic core side by side using two strands of conducting wires and form coil, it can reduce D.C. resistance, realization greatly improves withstanding current capability under same volume, and then realizes miniaturization and high-power.
Description
Technical field
The utility model belongs to power inductance field, is to be related to a kind of large power winding chip inductor more specifically.
Background technique
Chip inductor is also known as surface mount inductor, and high-power chip inductor generally refers to resistance to electric current 1A's or more
Chip inductor.With the continuous development of electronic technology, electronic component gradually to high frequency, miniaturization, power direction
Development.High-power chip inductor is to adapt to the electricity that electronic equipment, especially power unit electromagnetic compatibility demand occur
Sensor, it can not only load larger DC current, but also can preferably absorb power supply noise, eliminate electromagnetism especially suitable for power unit
Interference." chip inductor " is with the appellation of inductor structure formal classification.Chip inductor divides from manufacturing process, chip electricity
Sensor mainly has 4 seed types, i.e. winding-type, lamination-type, Weaving type and film-type chip inductor.Wherein, coiling chip inductor
Device is the product of traditional winding inductor miniaturization, but its shortcoming is restricted in terms of miniaturising, small
When type, resistance to current strength is low.
Utility model content
The purpose of this utility model is to provide a kind of large power winding chip inductors, to solve to exist in the prior art
The low problem of the resistance to current strength of large power winding chip inductor.
In order to achieve the above purposes, the technical solution adopted by the utility model is: provides a kind of large power winding chip inductor
Device, including magnetic core and the coil being wound on the magnetic core, the bottom surface of the magnetic core is arranged at intervals with two attachment pins, described
The both ends of coil are electrical connected with two attachment pins respectively, and the periphery of the magnetic core offers annular groove, and the coil twines
It is around on the magnetic core and is placed in the annular groove, the coil includes two strands of conducting wires, and two strands of conducting wire wound side by side are in institute
It states on magnetic core, the both ends of each stock conducting wire are electrical connected with two attachment pins respectively.
Further, each conducting wire is enamel covered wire.
Further, the magnetic glue with magnetic property is coated on the coil.
Further, the magnetic glue is filled in the annular groove and wraps up the coil.
Further, the magnetic glue includes epoxide-resin glue, is mixed with alloy magnetic powder in the epoxide-resin glue.
Further, the magnetic core is to be integrally formed using alloy powder.
Further, the magnetic core includes the newel of top plate and bottom plate and the connection top plate and the bottom plate, the top
The annular groove is formed in the part outside the newel between plate and the bottom plate, two attachment pins are installed on the bottom
The bottom surface of plate.
Further, the quadrangle of the bottom plate offers recess respectively, and two attachment pins are respectively arranged on the bottom
The two sides of plate, corresponding two recesses in each side of bottom plate are located at the both ends of the corresponding attachment pin, each stock institute
The both ends for stating conducting wire are electrical connected through bottom plate two sides recess and two attachment pins respectively.
Further, the quadrangle of the top plate opens up jagged respectively, and each notch is in arc-shaped.
Further, the two sides of the bottom surface of the magnetic core open up fluted respectively, and two attachment pins are installed respectively
In two grooves, and the bottom surface of the magnetic core is protruded in the bottom surface of each attachment pin.
The beneficial effect of large power winding chip inductor provided by the utility model is: compared with prior art, this
Utility model opens up annular groove by the periphery in magnetic core, to accommodate coil, guarantees that coil is firm and is mounted on magnetic core, improve production
Inductor shock resistance；And be wound on magnetic core side by side using two strands of conducting wires and form coil, it can reduce D.C. resistance,
Realization greatly improves withstanding current capability under same volume, and then realizes miniaturization and high-power.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new
Some embodiments of type for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of large power winding chip inductor provided by the embodiment of the utility model；
Fig. 2 is that the large power winding chip inductor of Fig. 1 removes the structural schematic diagram after magnetic glue；
Structural schematic diagram after the large power winding chip inductor removal patch foot that Fig. 3 is Fig. 2；
Fig. 4 is the schematic view of the front view of large power winding chip inductor shown in FIG. 1；
Fig. 5 is the sectional structure chart of the line A-A along Fig. 4.
Wherein, each attached drawing main mark in figure:
10- magnetic core；11- top plate；111- recess；12- bottom plate；121- notch；122- groove；13- newel；14- annular groove；
21- coil；211- conducting wire；22- magnetic glue；31- mounts pin.
Specific embodiment
In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with
Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or indirectly on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined." several " are meant that one or more, unless otherwise clearly specific limit
It is fixed.
In the description of the present invention, it should be understood that term " center ", " length ", " width ", " thickness ",
The orientation of the instructions such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" or
Positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description,
Rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, because
This should not be understood as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements or the interaction relationship of two elements.For those of ordinary skill in the art and
Speech, can understand the concrete meaning of above-mentioned term in the present invention as the case may be.
Also referring to Fig. 1 to Fig. 5, now large power winding chip inductor provided by the utility model is illustrated.
The large power winding chip inductor, including magnetic core 10 and coil 21.Coil 21 is wound on magnetic core 10, to improve inductance,
Reduce electromagnetic interference.The bottom surface setting of magnetic core 10 is arranged there are two pin 31, two attachment pin 31 intervals are mounted, coil 21
Both ends are electrical connected with two attachment pins 31 respectively, to carry out attachment use.The periphery of magnetic core 10 offers annular groove 14, annular groove
14 wounded cores 10.Coil 21 is wound on magnetic core 10 and is placed in annular groove 14, preferably to fix coil 21, prevents coil
21 fall off, and improve the shock resistance and reliability of production inductance.Coil 21 includes two strands of conducting wires 211, and two strands of conducting wires 211 are side by side
It is wound on magnetic core 10, the both ends of each stock conducting wire 211 are electrical connected with two attachment pins 31 respectively；I.e. coil 21 uses two strands
Conducting wire 211 is wound on magnetic core 10 and is formed, and two strands of conducting wires 211 are wound on side by side on magnetic core 10, so as to reduce coil
21 D.C. resistance greatly improves withstanding current capability, and improves anti-electromagnetic interference capability, so that the inductance of production is in same volume
Under greatly improve withstanding current capability, and then may be implemented miniaturization and high-power.
Large power winding chip inductor provided by the utility model, compared with prior art, the utility model by
The periphery of magnetic core 10 opens up annular groove 14, to accommodate coil 21, guarantees that coil 21 is firm and is mounted on magnetic core 10, improve the electricity of production
The shock resistance of sensor；And it is wound on formation coil 21 on magnetic core 10 side by side using two strands of conducting wires 211, it can reduce direct current
Resistance, realization greatly improves withstanding current capability under same volume, and then realizes miniaturization and high-power.
Further, referring to Figure 2 together, Fig. 3 and Fig. 5, as large power winding chip electricity provided by the utility model
A kind of specific embodiment of sensor, each conducting wire 211 are enamel covered wire.Using enamel covered wire, direct current can be further decreased
Resistance improves withstanding current capability, while can also reduce volume.Certainly, in some other embodiment, conducting wire 211 can also make
The metal wire of insulating layer is equipped with other surfaces.
Preferentially, annular groove 14 is set to the middle part of 10 thickness direction of magnetic core, so as to the similar intensity of 14 two sides of annular groove, and makes line
When circle 21 is powered, the magnetic field of two sides is close, to guarantee the stationarity and reliability of production inductance.
Further, also referring to Fig. 1, Fig. 3 and Fig. 5, as large power winding chip electricity provided by the utility model
A kind of specific embodiment of sensor is coated with the magnetic glue 22 with magnetic property on coil 21.Coating on coil 21 has
The inductance value and resistance to current strength of production inductance can be improved in the magnetic glue 22 of magnetic property, thus under equal-wattage, Ke Yijin
One step reduces volume.
Further, also referring to Fig. 1, Fig. 3 and Fig. 5, as large power winding chip electricity provided by the utility model
A kind of specific embodiment of sensor, magnetic glue 22 are filled in annular groove 14 and wrap up coil 21.Magnetic glue 22 is filled in annular groove 14
In, and magnetic glue 22 is made to wrap coil 21, coil 21 can be fixed, preferably to improve shock resistance and protection coil
21, and further increase the inductance value and resistance to current strength of production inductance.
Further, also referring to Fig. 1, Fig. 3 and Fig. 5, as large power winding chip electricity provided by the utility model
A kind of specific embodiment of sensor, magnetic glue 22 include epoxide-resin glue, are mixed with alloy magnetic powder in epoxide-resin glue.Use ring
Oxygen resin glue, and the hybrid alloys magnetic powder in epoxide-resin glue, to form magnetic glue 22, it can be conveniently filled into annular groove 14 or
Coated on coil 21, and buffering production can be played, improve shock resistance, while also facilitating processing and fabricating, be also convenient for solid
Chemical conversion type, with the better inductance value and resistance to current strength for improving production inductance.
Further, also referring to Fig. 1, Fig. 3 and Fig. 5, as large power winding chip electricity provided by the utility model
A kind of specific embodiment of sensor, magnetic core 10 are to be integrally formed using alloy powder.Magnetic core 10 uses integrated formed structure, by force
Degree is high, good reliability.And made using alloy powder, it can be convenient processing and fabricating, while improving magnetic property.Certainly, at it
In its some embodiment, other magnetic conductive metal material production are also can be used in magnetic core 10.
Further, also referring to Fig. 1, Fig. 3 and Fig. 5, as large power winding chip electricity provided by the utility model
A kind of specific embodiment of sensor, magnetic core 10 include the newel 13 of top plate 11, bottom plate 12 and connection top plate 11 and bottom plate 12,
Annular groove 14 is formed in the part outside newel 13 between top plate 11 and bottom plate 12, two attachment pins 31 are installed on the bottom of bottom plate 12
Face.Magnetic core 10 is constituted using top plate 11, bottom plate 12 and newel 13, processing and fabricating is convenient, is also convenient for using facilitating production in blocks
Formula inductor.
Further, also referring to Fig. 1, Fig. 3 and Fig. 5, as large power winding chip electricity provided by the utility model
A kind of specific embodiment of sensor, the quadrangle of bottom plate 12 offer recess 111 respectively, open up respectively in the quadrangle of bottom plate 12 recessed
Mouth 111, when in use, it is possible to reduce corner angle mitigate weight.Further, each recess 111 is in arc-shaped, to facilitate processing to make
When making, while can reduce processing and fabricating, the stress at each angle of bottom plate 12.
Further, also referring to Fig. 1, Fig. 3 and Fig. 5, as large power winding chip electricity provided by the utility model
A kind of specific embodiment of sensor, two attachment pins 31 are respectively arranged on the two sides of bottom plate 12,12 each side corresponding two of bottom plate
A recess 111 is located at the both ends of corresponding attachment pin 31, and the both ends of each stock conducting wire 211 are respectively through 12 two sides recess of bottom plate
111 are electrical connected with two attachment pins 31.The structure makes the both ends of coil 21 respectively by corresponding recess 111 and corresponding patch
It fills pin 31 to be connected, can play the role of protecting 21 end of coil.
Further, also referring to Fig. 1, Fig. 3 and Fig. 5, as large power winding chip electricity provided by the utility model
A kind of specific embodiment of sensor, the quadrangle of top plate 11 open up jagged 121 respectively, it is possible to reduce corner angle mitigate weight.Into
One step, each notch 121 is in arc-shaped, and to facilitate processing and fabricating, while when can reduce processing and fabricating, each angle of top plate 11 answered
Power.
Further, also referring to Fig. 1, Fig. 3 and Fig. 5, as large power winding chip electricity provided by the utility model
A kind of specific embodiment of sensor, the size of each recess 111 is identical as the size of each notch 121, to facilitate processing and fabricating.
Further, also referring to Fig. 1, Fig. 3 and Fig. 5, as large power winding chip electricity provided by the utility model
A kind of specific embodiment of sensor, the edge of the top surface of top plate 11 are equipped with chamfering, i.e. the top surface of top plate 11 is remote on top plate 11
One side from bottom plate 12 preferably prevents from wearing to facilitate storage to use.
Further, also referring to Fig. 1, Fig. 3 and Fig. 5, as large power winding chip electricity provided by the utility model
A kind of specific embodiment of sensor, the edge of the bottom surface of bottom plate 12 are equipped with chamfering, i.e. the bottom surface of bottom plate 12 is remote on bottom plate 12
One side from top plate 11 preferably prevents from wearing to facilitate storage to use.
Further, also referring to Fig. 1, Fig. 3 and Fig. 5, as large power winding chip electricity provided by the utility model
A kind of specific embodiment of sensor, the two sides of the bottom surface of magnetic core 10 open up fluted 122 respectively, two attachment pin 31 difference
It is installed in two grooves 122, and the bottom surface of the bottom surface protrusion magnetic core 10 of each attachment pin 31.In the bottom surface of magnetic core 10, setting is recessed
Slot 122, to facilitate positioning and fixed attachment pin 31.And make the bottom surface for the bottom surface protrusion magnetic core 10 for mounting pin 31, with convenient
Attachment uses.Specifically, each groove 122 is arranged on the bottom surface of bottom plate 12.
Further, also referring to Fig. 1, Fig. 3 and Fig. 5, as large power winding chip electricity provided by the utility model
A kind of specific embodiment of sensor, each pin 31 that mounts fills corresponding groove 122, to increase attachment pin 31 and groove
The contact area of 122 inner surfaces, increase attachment pin 31 bonding strength, with into can will attachment pin 31 production relatively
Greatly, to reduce D.C. resistance.
Further, also referring to Fig. 1, Fig. 3 and Fig. 5, as large power winding chip electricity provided by the utility model
A kind of specific embodiment of sensor, the cross section of groove 122 is V-shaped, and the cross section for respectively mounting pin 31 is substantially in triangle
Shape, each pin 31 that mounts are fitted in groove 122, with being connected firmly and with larger volume for guarantee attachment pin 31.
Further, also referring to Fig. 1, Fig. 3 and Fig. 5, as large power winding chip electricity provided by the utility model
A kind of specific embodiment of sensor, each pin 31 that mounts is the tin foot made of tin, is welded to connect with facilitating.Certainly at it
In its some embodiment, each pin 31 that mounts can also be made of other conductive materials.
Further, also referring to Fig. 1, Fig. 4 and Fig. 5, the large power winding chip inductor of the utility model production
A kind of specific embodiment in: can by the top surface of magnetic core 10 to it is each attachment 31 bottom surface of pin distance H be 1.3mm, magnetic core 10
Width W be 4mm, the length L of magnetic core 10 is 4.3mm, and then by the long * wide * high of the size of the large power winding chip inductor
It is made as 4.3mm (length) * 4mm (width) * 1.3mm (height) respectively, it is small in size.
Also referring to Fig. 1, Fig. 2 and Fig. 5, a kind of large power winding chip electricity of scheme production according to the present utility model
The parameter of sensor please refers to following table:
1 product parameters of table
| Product specification code | Inductance (μ H) | D.C. resistance (Ω) | Rated current (A) | Saturation current (A) |
| NR4313H-100M | 10.0 | 0.45Max | 1.2 | 3.0 |
As seen from the above table, the specification code of the large power winding chip inductor of production is NR4313H-100M；Its electricity
Sensibility reciprocal is 10 μ H, and D.C. resistance is up to 0.45 Ω, and D.C. resistance is small；Rated current can achieve 1.2A, and saturation current is
3.0A, withstanding current capability are strong.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. large power winding chip inductor, including magnetic core and the coil being wound on the magnetic core, between the bottom surface of the magnetic core
It is electrical connected respectively with two attachment pins every setting there are two pin, the both ends of the coil are mounted, it is characterised in that:
The periphery of the magnetic core offers annular groove, and the coil is wound on the magnetic core and is placed in the annular groove, the coil packet
Two strands of conducting wires are included, two strands of conducting wire wound side by side are on the magnetic core, and the both ends of each stock conducting wire are respectively and described in two
Attachment pin is electrical connected.
2. large power winding chip inductor as described in claim 1, it is characterised in that: each conducting wire is enamel covered wire.
3. large power winding chip inductor as described in claim 1, it is characterised in that: be coated with to have on the coil and lead
The magnetic glue of magnetic property.
4. large power winding chip inductor as claimed in claim 3, it is characterised in that: the magnetic glue is filled in the annular groove
In and wrap up the coil.
5. large power winding chip inductor as claimed in claim 3, it is characterised in that: the magnetic glue includes epoxy resin
Glue is mixed with alloy magnetic powder in the epoxide-resin glue.
6. large power winding chip inductor as described in claim 1, it is characterised in that: the magnetic core is using alloy powder
It is integrally formed.
7. large power winding chip inductor as claimed in any one of claims 1 to 6, it is characterised in that: the magnetic core includes top
The newel of plate, bottom plate and the connection top plate and the bottom plate, in outside the newel between the top plate and the bottom plate
Part form the annular groove, two attachment pins are installed on the bottom surfaces of the bottom plate.
8. large power winding chip inductor as claimed in claim 7, it is characterised in that: the quadrangle of the bottom plate opens up respectively
There is a recess, two attachment pins are respectively arranged on the two sides of the bottom plate, corresponding two recesses in each side of bottom plate
The both ends of the corresponding attachment pin are located at, the both ends of each stock conducting wire are respectively through bottom plate two sides recess and two
The attachment pin is electrical connected.
9. large power winding chip inductor as claimed in claim 7, it is characterised in that: the quadrangle of the top plate opens up respectively
Jagged, each notch is in arc-shaped.
10. large power winding chip inductor as claimed in any one of claims 1 to 6, it is characterised in that: the bottom of the magnetic core
The two sides in face open up fluted respectively, and two attachment pins are respectively arranged in two grooves, and each attachment
Protrude the bottom surface of the magnetic core in the bottom surface of pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821153442.XU CN208548237U (en) | 2018-07-19 | 2018-07-19 | Large power winding chip inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821153442.XU CN208548237U (en) | 2018-07-19 | 2018-07-19 | Large power winding chip inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208548237U true CN208548237U (en) | 2019-02-26 |
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ID=65425103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821153442.XU Active CN208548237U (en) | 2018-07-19 | 2018-07-19 | Large power winding chip inductor |
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| Country | Link |
|---|---|
| CN (1) | CN208548237U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108766741A (en) * | 2018-07-19 | 2018-11-06 | 深圳振华富电子有限公司 | Large power winding chip inductor |
-
2018
- 2018-07-19 CN CN201821153442.XU patent/CN208548237U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108766741A (en) * | 2018-07-19 | 2018-11-06 | 深圳振华富电子有限公司 | Large power winding chip inductor |
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