CN217361337U - SMD transformer - Google Patents

SMD transformer Download PDF

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Publication number
CN217361337U
CN217361337U CN202123363703.5U CN202123363703U CN217361337U CN 217361337 U CN217361337 U CN 217361337U CN 202123363703 U CN202123363703 U CN 202123363703U CN 217361337 U CN217361337 U CN 217361337U
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CN
China
Prior art keywords
upper base
bottom plate
magnetic core
main core
coil winding
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
Application number
CN202123363703.5U
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Chinese (zh)
Inventor
曹坤
周艳英
沈利峰
张志锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Haining Lianfeng Dongjin Electronics Co ltd
Original Assignee
Haining Lianfeng Dongjin Electronics Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Haining Lianfeng Dongjin Electronics Co ltd filed Critical Haining Lianfeng Dongjin Electronics Co ltd
Priority to CN202123363703.5U priority Critical patent/CN217361337U/en
Application granted granted Critical
Publication of CN217361337U publication Critical patent/CN217361337U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a SMD transformer, which comprises a magnetic core and a coil winding; the magnetic core comprises an upper base and a lower base, wherein a first raised main core part and a side wing part are arranged on the upper base, the first main core part is arranged in the middle of the upper base, the side wing part is arranged on two sides of the upper base, the lower base comprises side plates and a bottom plate, the side plates are respectively arranged on two sides of the bottom plate, pins are arranged on the bottom plate, a second main core part is arranged on the bottom plate, and a plurality of lead wires are arranged on the coil winding; the upper base and the lower base are combined to form a magnetic core, and the coil winding is embedded on the first main core part and the second main core part. The utility model discloses a SMD transformer simple structure, convenient to use through the cooperation setting between magnetic core and the coil winding, has adopted no skeleton coiling coil, has realized reducing of SMD transformer overall structure, and the magnetic core adopts manganese zinc ferrite to reduce the loss under the low frequency simultaneously.

Description

SMD transformer
Technical Field
The utility model relates to a transformer technical field, concretely relates to SMD transformer.
Background
In electrical equipment and wireless circuits, transformers are often used to step up and down voltage, match impedance, safety isolation, etc. In a generator, an electric potential is induced in a coil, whether the coil is moved through a magnetic field or the magnetic field is moved through a stationary coil, in both cases the value of the flux is constant, but the amount of flux linked to the coil varies, which is the principle of mutual induction.
At present, electronic equipment tends to be miniaturized more and more, and the space that traditional transformer product needs to occupy is more, has not satisfied miniaturized requirement.
Based on the circumstances, the utility model provides a SMD transformer can effectively solve more than one or more problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a SMD transformer. The utility model discloses a SMD transformer simple structure, convenient to use through the cooperation setting between magnetic core and the coil winding, has adopted no skeleton coiling coil, has realized shrinking of SMD transformer overall structure, and the magnetic core adopts manganese zinc ferrite to reduce the loss under the low frequency simultaneously.
The utility model discloses a following technical scheme realizes:
an SMD transformer includes a magnetic core and a coil winding;
the magnetic core comprises an upper base and a lower base, wherein a first raised main core part and a side wing part are arranged on the upper base, the first main core part is arranged in the middle of the upper base, the side wing part is arranged on two sides of the upper base, the lower base comprises side plates and a bottom plate, the side plates are respectively arranged on two sides of the bottom plate, pins are arranged on the bottom plate, a second main core part is arranged on the bottom plate, and a plurality of lead wires are arranged on the coil winding;
the upper base and the lower base are combined to form a magnetic core, and the coil winding is embedded on the first main core part and the second main core part.
An object of the utility model is to provide a SMD transformer. The utility model discloses a SMD transformer simple structure, convenient to use through the cooperation setting between magnetic core and the coil winding, has adopted no skeleton coiling coil, has realized reducing of SMD transformer overall structure, and the magnetic core adopts manganese zinc ferrite to reduce the loss under the low frequency simultaneously.
Preferably, the upper base is provided with a groove between the first main core and the side wing.
Preferably, a sleeve is arranged on the lead.
Preferably, glue is arranged at the joint of the upper base and the lower base and at the joint of the side plate and the bottom plate.
Preferably, the glue is epoxy resin glue.
Preferably, the lower base and the coil winding are both provided with insulating tapes.
Preferably, the material of the magnetic core is manganese-zinc ferrite.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the utility model discloses a SMD transformer simple structure, convenient to use through the cooperation setting between magnetic core and the coil winding, has adopted no skeleton coiling coil, has realized reducing of SMD transformer overall structure, and the magnetic core adopts manganese zinc ferrite to reduce the loss under the low frequency simultaneously.
Drawings
Fig. 1 is a schematic front view of the present invention;
fig. 2 is a left side view structure diagram of the present invention;
fig. 3 is a schematic top view of the present invention;
fig. 4 is a schematic bottom view of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the following description of the preferred embodiments of the present invention is given with reference to the accompanying examples, but it should be understood that the drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and should not be construed as limiting the present patent.
Example 1:
as shown in fig. 1 to 4, the present invention provides an SMD transformer including a magnetic core 1 and a coil winding 2;
the magnetic core 1 comprises an upper base 11 and a lower base 12, wherein a first raised main core part and a side wing part 111 are arranged on the upper base 11, the first main core part is arranged in the middle of the upper base 11, the side wing parts 111 are arranged on two sides of the upper base 11, the lower base 12 comprises a side plate 121 and a bottom plate 122, the side plate 121 is respectively arranged on two sides of the bottom plate 122, a pin 1221 is arranged on the bottom plate 122, a second main core part is arranged on the bottom plate 122, and a plurality of lead wires 21 are arranged on the coil winding 2;
the upper base 11 and the lower base 12 are combined to form the magnetic core 1, and the coil winding 2 is embedded on the first main core portion and the second main core portion.
Example 2:
as shown in fig. 1 to 4, the present invention provides an SMD transformer including a magnetic core 1 and a coil winding 2;
the magnetic core 1 comprises an upper base 11 and a lower base 12, wherein a first raised main core part and a side wing part 111 are arranged on the upper base 11, the first main core part is arranged in the middle of the upper base 11, the side wing parts 111 are arranged on two sides of the upper base 11, the lower base 12 comprises a side plate 121 and a bottom plate 122, the side plate 121 is respectively arranged on two sides of the bottom plate 122, a pin 1221 is arranged on the bottom plate 122, a second main core part is arranged on the bottom plate 122, and a plurality of lead wires 21 are arranged on the coil winding 2;
the upper base 11 and the lower base 12 are combined to form the magnetic core 1, and the coil winding 2 is embedded on the first main core portion and the second main core portion.
Further, in another embodiment, the upper base 11 is provided with a groove 112 between the first main core and the side wing 111.
The provision of the groove 112 reduces the weight of the transformer and saves material.
Further, in another embodiment, a sleeve 211 is provided on the lead 21.
The set sleeve 211 may protect the lead 21.
Further, in another embodiment, the joint of the upper base 11 and the lower base 12, and the joint of the side plate 121 and the bottom plate 122 are provided with glue 13.
The provision of glue 13 may improve the stability between the upper and lower bases 11, 12, the side plates 121 and the bottom plate 122.
Further, in another embodiment, the glue 13 is an epoxy glue.
Further, in another embodiment, the insulating tapes 14 are disposed on the lower base 12 and the coil winding 2.
The insulating tape 14 is provided to improve insulation.
Further, in another embodiment, the material of the magnetic core 1 is manganese-zinc-ferrite.
The magnetic core 1 is made of special materials, the testing frequency can meet 200KHZ-500KHZ, the AE value is 160m square meter, and the manganese-zinc ferrite has the characteristics of high magnetic conductivity and high magnetic flux density and has the characteristic of lower loss when the frequency is lower than 1 MHz.
According to the description and the drawings of the present invention, the SMD transformer of the present invention can be easily manufactured or used by those skilled in the art, and the positive effects described in the present invention can be produced.
Unless otherwise specified, in the present invention, if the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.

Claims (7)

1. An SMD transformer, comprising: comprises a magnetic core and a coil winding;
the magnetic core comprises an upper base and a lower base, wherein a first raised main core part and a side wing part are arranged on the upper base, the first main core part is arranged in the middle of the upper base, the side wing part is arranged on two sides of the upper base, the lower base comprises side plates and a bottom plate, the side plates are respectively arranged on two sides of the bottom plate, pins are arranged on the bottom plate, a second main core part is arranged on the bottom plate, and a plurality of lead wires are arranged on the coil winding;
the upper base and the lower base are combined to form a magnetic core, and the coil winding is embedded on the first main core part and the second main core part.
2. The SMD transformer of claim 1, wherein: the upper base is provided with a groove between the first main core and the side wing.
3. The SMD transformer of claim 1, wherein: and a sleeve is arranged on the lead.
4. The SMD transformer of claim 1, wherein: and glue is arranged at the joint of the upper base and the lower base and the joint of the side plate and the bottom plate.
5. The SMD transformer of claim 4, characterized in that: the glue is epoxy resin glue.
6. The SMD transformer of claim 1, wherein: and the lower base and the coil winding are both provided with insulating tapes.
7. The SMD transformer of claim 1, wherein: the magnetic core is made of manganese-zinc ferrite.
CN202123363703.5U 2021-12-29 2021-12-29 SMD transformer Active CN217361337U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123363703.5U CN217361337U (en) 2021-12-29 2021-12-29 SMD transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202123363703.5U CN217361337U (en) 2021-12-29 2021-12-29 SMD transformer

Publications (1)

Publication Number Publication Date
CN217361337U true CN217361337U (en) 2022-09-02

Family

ID=83041336

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202123363703.5U Active CN217361337U (en) 2021-12-29 2021-12-29 SMD transformer

Country Status (1)

Country Link
CN (1) CN217361337U (en)

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