CN210489381U - Sheet type network transformer - Google Patents
Sheet type network transformer Download PDFInfo
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- CN210489381U CN210489381U CN201921617161.XU CN201921617161U CN210489381U CN 210489381 U CN210489381 U CN 210489381U CN 201921617161 U CN201921617161 U CN 201921617161U CN 210489381 U CN210489381 U CN 210489381U
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- 239000000853 adhesive Substances 0.000 claims abstract description 9
- 230000001070 adhesive effect Effects 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims description 18
- 239000003292 glue Substances 0.000 claims description 14
- 239000006247 magnetic powder Substances 0.000 claims description 5
- 230000005389 magnetism Effects 0.000 abstract description 6
- 239000011230 binding agent Substances 0.000 abstract description 3
- 238000010030 laminating Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 208000004350 Strabismus Diseases 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model relates to the field of inductors, and discloses a sheet type network transformer, which comprises a magnetic sheet and a magnetic core, wherein the lower end surface of the magnetic sheet is attached to the upper end surface of the magnetic core, and the lower end surface of the magnetic sheet and the upper end surface of the magnetic core are both ground into a mirror plane; and the lower end face of the magnetic sheet or the upper end face of the magnetic core is provided with a groove, and an adhesive used for adhering the magnetic sheet and the magnetic core is arranged in the groove. The utility model discloses the technological effect who has, the up end through the lower terminal surface of magnetic sheet and magnetic core all grinds to the mirror surface plane for the laminating department of magnetic sheet and magnetic core is the mirror surface plane and can not have the clearance space, and the lower terminal surface of magnetic sheet or the up end of magnetic core is provided with the recess, is provided with the binder that is used for bonding magnetic sheet and magnetic core in the recess, increases the position of binding when keeping the magnetic core mirror surface and has reduced slice formula network transformer magnetic core body clearance, and then communicates the magnetic flow return circuit, has improved the magnetic core weak magnetism, bad phenomena such as magnetic leakage.
Description
Technical Field
The utility model relates to an inductor field particularly, relates to a piece formula network transformer.
Background
With the rapid development of electronic technology, micro-power modules mainly used in industrial control, instruments, medical treatment, integrated communication signal processing interfaces and the like are also evolving in technology towards small, thin and light directions. The transformer is used as a core power magnetic element in the micro-power supply module, plays the key roles of voltage isolation and energy transfer, and directly influences the miniaturization development of the micro-power module. At present, the two magnetic core bodies are connected by using connecting glue in the industry. Because of connecting the glue existence, lead to have certain clearance space between first magnetic core body and the second magnetic core body, the existence in this clearance can influence the magnetic flux return circuit of magnetic core body, leads to having bad phenomena such as weak magnetism, magnetic leakage. Finally, hidden troubles such as signal attenuation and large interference of the product are caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sheet type transformer, it has been solved and has used and connect glue and connect two magnetic core bodies and can make and have certain clearance space between first magnetic core body and the second magnetic core body, leads to there being weak magnetism, the problem of undesirable phenomena such as magnetic leakage.
The embodiment of the utility model is realized like this:
a chip network transformer comprises a magnetic sheet and a magnetic core, wherein the lower end face of the magnetic sheet is attached to the upper end face of the magnetic core, and the lower end face of the magnetic sheet and the upper end face of the magnetic core are both ground into mirror planes; and the lower end face of the magnetic sheet or the upper end face of the magnetic core is provided with a groove, and an adhesive used for adhering the magnetic sheet and the magnetic core is arranged in the groove.
In a further aspect, the magnetic core includes a first end portion, a second end portion and a winding portion, the first end portion and the second end portion are respectively located at two ends of the winding portion to form an i-shaped structure, and upper end surfaces of the first end portion and the second end portion are mirror planes.
In a further aspect, the groove is disposed on the upper end surfaces of the first end portion and the second end portion.
In a further aspect, the number of the grooves is plural, and the grooves are disposed on the upper end surfaces of the first end portion and the second end portion.
In a further scheme, the upper end face of the first end portion and the upper end face of the second end portion are respectively provided with a fitting portion fitted with the lower end face of the magnetic sheet, the fitting portions are located on an extending path in the length direction of the winding portion, the width of the fitting portions is larger than that of the winding portion, and the grooves are located on two sides of the fitting portions.
In a further aspect, the groove of the first end upper surface and the groove of the second end upper surface are symmetrically arranged with respect to the winding portion.
In a further aspect, the groove of the first end upper surface and the groove of the second end upper surface are asymmetrically arranged with respect to the winding portion.
In a further scheme, the grooves are formed in the corners on the two sides of the upper end face of the first end portion, and the grooves are formed in the corners on the two sides of the upper end face of the second end portion.
In a further scheme, the groove is formed in the lower end face of the magnetic sheet, and a notch of the groove is covered with the upper end face of the first end portion or the second end portion.
In a further aspect, the adhesive is magnetic powder glue.
The utility model has the advantages that:
all grind for the mirror surface plane through the lower terminal surface of magnetic sheet and the up end of magnetic core for the laminating department of magnetic sheet and magnetic core is the mirror surface plane and can not have the clearance space, and the lower terminal surface of magnetic sheet or the up end of magnetic core is provided with the recess, is provided with the binder that is used for bonding magnetic sheet and magnetic core in the recess, increases the position of binding when keeping the magnetic core mirror surface and has reduced piece formula network transformer magnetic core body clearance, and then communicates the magnetic flow return circuit, has improved the magnetic core weak magnetism, bad phenomena such as magnetic leakage, thereby strengthen signal transmission ability, subduct the interference of product magnetic core body, reduce network signal's loss.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural explosion diagram of a chip-type network transformer provided in embodiment 1 of the present invention;
fig. 2 is a side view of a chip-type network transformer according to embodiment 1 of the present invention;
fig. 3 is a side view of a chip network transformer according to embodiment 2 of the present invention;
icon: 1-magnetic sheet, 2-magnetic core, 3-groove, 4-adhesive, 5-mirror plane, 6-first end and 7-second end.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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.
Example 1
Referring to fig. 1 and 2, the present embodiment provides a chip-type network transformer, which includes a magnetic sheet 1 and a magnetic core 2. The lower end face of the magnetic sheet 1 is attached to the upper end face of the magnetic core 2, and the lower end face of the magnetic sheet 1 and the upper end face of the magnetic core 2 are both ground into a mirror plane 5. Meanwhile, the upper end face of the magnetic core 2 is provided with a groove 3, and an adhesive 4 for adhering the magnetic sheet 1 and the magnetic core 2 is arranged in the groove 3.
Traditional piece formula network transformer leads to there being certain clearance space between magnetic sheet 1 and the magnet because of connecting glue existence, and the existence in this clearance can influence the magnetic flux return circuit of 2 bodies of magnetic core, leads to having bad phenomena such as weak magnetism, magnetic leakage. Finally, hidden troubles such as signal attenuation and large interference of the product are caused. And all grind for mirror surface plane 5 through the lower terminal surface of magnetic sheet 1 and the up end of magnetic core 2 in this scheme for the laminating department of magnetic sheet 1 and magnetic core 2 is mirror surface plane 5 can not have the clearance space, and the lower terminal surface of magnetic sheet 1 or the up end of magnetic core 2 is provided with recess 3, is provided with the binder 4 that is used for bonding magnetic sheet 1 and magnetic core 2 in the recess 3, increases the position of binding when keeping the 2 mirror surfaces of magnetic core and has reduced 2 body clearances of piece formula network transformer magnetic core, and then intercommunication magnetic flow return circuit, has improved 2 weak magnetism on the magnetic core, bad phenomena such as magnetic leakage, thereby strengthen signal transmission ability, subdue the interference of 2 bodies on product magnetic core, reduce the loss of network signal.
As a specific embodiment, the magnetic core 2 includes a first end portion 6, a second end portion 7 and a winding portion, and the first end portion 6 and the second end portion are respectively located at two ends of the winding portion to form an i-shaped structure. The upper end faces of the first end part 6 and the second end part are both mirror planes 5.
In this embodiment, the groove 3 is disposed on the upper end surfaces of the first end portion 6 and the second end portion 7.
Further, the number of the grooves 3 in this scheme is plural, and the grooves 3 are all disposed on the upper end surfaces of the first end portion 6 and the second end portion 7.
And in order to keep the complete coupling of the magnetic circuit, the upper end surface of the first end part 6 and the upper end surface of the second end part 7 are respectively provided with a joint part which is jointed with the lower end surface of the magnetic sheet 1. The attaching part is located on the extending path of the length direction of the winding part, meanwhile, the width of the attaching part is larger than that of the winding part, and the grooves 3 are located on two sides of the attaching part.
Still further, the groove 3 on the upper end surface of the first end part 6 and the groove 3 on the upper end surface of the second end part are symmetrically arranged relative to the winding part.
Specifically, the corners on two sides of the upper end face of the first end portion 6 are provided with grooves 3, and the corners on two sides of the upper end face of the second end portion are provided with grooves 3. The grooves 3 are formed in the corners of the two sides of the upper end face of the first end portion 6, the grooves 3 are formed in the corners of the two sides of the upper end face of the second end portion, flange four corners are formed in the upper end face of the magnet, and the magnet and the magnetic sheet 1 are convenient to adhere stably. It is easy to understand that the number and position of the grooves 3 are not limited in the case of securing the bonding of the magnet and the magnetic sheet 1. And under the condition of ensuring the bonding stability of the magnet and the magnetic sheet 1, the groove 3 on the upper end surface of the first end part and the groove 3 on the upper end surface of the second end part can be asymmetrically arranged relative to the winding part.
Meanwhile, as a preferred embodiment, the adhesive 4 in the present embodiment is magnetic powder glue. The connecting glue used in the current market is generally resin glue, and the glue characteristic is that the glue is softened after being heated, so that the magnetic sheet 1 is easy to fall off and shift when a product is welded on a PCB (printed Circuit Board), and finally the product is rejected badly. For magnetic powder glue through adhesive 4, use magnetic powder glue bonding magnetic sheet 1 and magnetic core 2 in the position of getting rid of the flange four corners at 2 body both ends of second magnetic core, when avoiding the product to weld on the PCB board, piece formula network transformer connects glue and is heated the back glue and soften, makes magnetic sheet 1 drop, squints, leads to the product to scrap.
Example 2
As shown in fig. 3, the main difference between this embodiment and the chip type network transformer in embodiment 1 is that the groove 3 is disposed on the lower end surface of the magnetic sheet 1, and the notch of the groove 3 covers the upper end surface of the first end portion 6 or the second end portion 7.
In the embodiment, the grooves 3 are located on two sides of the joint part where the magnetic sheet 1 is jointed with the upper end surface of the first end part 6 or the second end part 7, so that complete coupling of the magnetic circuit is ensured. As a specific embodiment, the grooves 3 are formed at four corners of the lower end surface of the magnetic sheet 1.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A chip network transformer is characterized by comprising a magnetic sheet and a magnetic core, wherein the lower end face of the magnetic sheet is attached to the upper end face of the magnetic core, and the lower end face of the magnetic sheet and the upper end face of the magnetic core are both ground into mirror planes; and the lower end face of the magnetic sheet or the upper end face of the magnetic core is provided with a groove, and an adhesive used for adhering the magnetic sheet and the magnetic core is arranged in the groove.
2. The chip network transformer of claim 1, wherein the magnetic core includes a first end portion, a second end portion and a winding portion, the first end portion and the second end portion are respectively located at two ends of the winding portion to form an i-shaped structure, and upper end surfaces of the first end portion and the second end portion are mirror planes.
3. The sheet network transformer of claim 2, wherein the groove is disposed at upper end surfaces of the first and second end portions.
4. The sheet type network transformer of claim 3, wherein the number of the grooves is plural, and the plural grooves are disposed on the upper end surfaces of the first end portion and the second end portion.
5. The sheet-type network transformer according to claim 4, wherein the upper end surface of the first end portion and the upper end surface of the second end portion are respectively provided with a bonding portion bonded to the lower end surface of the magnetic sheet, the bonding portions are located on an extending path in a length direction of the winding portion, a width of the bonding portions is larger than a width of the winding portion, and the grooves are located on two sides of the bonding portions.
6. The chip network transformer according to claim 5, wherein the grooves of the first end upper surface and the grooves of the second end upper surface are symmetrically disposed with respect to the winding part.
7. The chip network transformer according to claim 5, wherein the groove of the upper end surface of the first end portion and the groove of the upper end surface of the second end portion are asymmetrically disposed with respect to the winding portion.
8. The chip network transformer according to claim 6, wherein the grooves are formed at both side corners of the upper end surface of the first end portion, and the grooves are formed at both side corners of the upper end surface of the second end portion.
9. The chip network transformer according to claim 2, wherein the groove is formed in a lower end surface of the magnetic sheet, and a notch of the groove is covered with an upper end surface of the first end portion or the second end portion.
10. Chip network transformer according to any of claims 1-9, characterized in that the adhesive is a magnetic powder glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921617161.XU CN210489381U (en) | 2019-09-26 | 2019-09-26 | Sheet type network transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921617161.XU CN210489381U (en) | 2019-09-26 | 2019-09-26 | Sheet type network transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210489381U true CN210489381U (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921617161.XU Active CN210489381U (en) | 2019-09-26 | 2019-09-26 | Sheet type network transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN210489381U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023124884A1 (en) * | 2021-12-30 | 2023-07-06 | 华为技术有限公司 | Electronic device and electronic apparatus |
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2019
- 2019-09-26 CN CN201921617161.XU patent/CN210489381U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023124884A1 (en) * | 2021-12-30 | 2023-07-06 | 华为技术有限公司 | Electronic device and electronic apparatus |
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