CN220041576U - Direct current transformer - Google Patents
Direct current transformer Download PDFInfo
- Publication number
- CN220041576U CN220041576U CN202321210479.2U CN202321210479U CN220041576U CN 220041576 U CN220041576 U CN 220041576U CN 202321210479 U CN202321210479 U CN 202321210479U CN 220041576 U CN220041576 U CN 220041576U
- Authority
- CN
- China
- Prior art keywords
- iron core
- shell
- annular iron
- supporting plate
- direct current
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 71
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 35
- 239000010959 steel Substances 0.000 claims abstract description 35
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052802 copper Inorganic materials 0.000 claims abstract description 19
- 239000010949 copper Substances 0.000 claims abstract description 19
- 238000005538 encapsulation Methods 0.000 claims abstract description 3
- 239000003822 epoxy resin Substances 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 10
- 229920000647 polyepoxide Polymers 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000010146 3D printing Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000004020 conductor Substances 0.000 description 6
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- -1 wherein casing Substances 0.000 description 1
Landscapes
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model discloses a direct current transformer, which belongs to the technical field of electronic components and comprises a shell, a supporting plate, two U-shaped tin-plated copper-clad steel wires, an annular iron core and three copper wires wound on the annular iron core, wherein two limiting plates which are integrally connected are arranged on the supporting plate, a notch for clamping the annular iron core is formed between the two limiting plates, and two clamping grooves which are correspondingly used for clamping the two U-shaped tin-plated copper-clad steel wires are formed in the top surface of each limiting plate. The utility model can realize the positioning of the annular iron core and the two U-shaped tinned copper clad steel wires, keep the positions of the annular iron core and the two U-shaped tinned copper clad steel wires unchanged, and avoid the short circuit caused by the mutual contact with the two U-shaped tinned copper clad steel wires and the disconnection caused by the disconnection of copper wires away from an output pin after the assembly and encapsulation, thereby ensuring the normal service life of the direct current transformer.
Description
Technical Field
The utility model relates to the technical field of electronic components, in particular to a direct current transformer.
Background
The direct current transformer is used for transforming direct current magnitude, and utilizes nonlinearity and asymmetry of the iron core in the iron core coil when the iron core is magnetized by direct current and alternating current together, and then the direct current large current passing through the coil is transformed into direct current small current according to the inverse proportion of turns by the rectifying circuit. The direct current transformer is mainly used for measuring direct current large current and is also used as a current feedback, control and protection element in a rectifying system.
At present, as a direct current transformer, the direct current transformer mainly comprises a shell and an electronic element encapsulated in the shell, wherein the shell comprises a shell with an open bottom end and a supporting plate encapsulated at the bottom end port of the shell; the electronic component comprises an annular iron core, three copper wires (coils) wound on the annular iron core and two U-shaped tin-plated copper-clad steel wires (conductors). During assembly, two U-shaped tin-plated copper-clad steel wires penetrate through the annular iron core, and then two ends of the two U-shaped tin-plated copper-clad steel wires are respectively inserted into four large through holes on the supporting plate correspondingly and led out to serve as four input pins; then, two ends of the three copper wires are respectively and correspondingly connected with six output pins inserted on the supporting plate.
When in packaging, the shell is inverted, the bottom port of the shell is upwards arranged, the supporting plate is slightly lifted, a proper amount of epoxy resin glue is injected into the shell, then the supporting plate is pressed, after the epoxy resin glue is solidified, the electronic element can be packaged in the shell, and the supporting plate is packaged in the bottom port of the shell.
Because no technical means is adopted to position the annular iron core, the position of the annular iron core can be changed under the action of gravity or extrusion of epoxy resin glue, and the relative positions of the annular iron core and two U-shaped tin-plated copper-clad steel wires (conductors) can be changed, so that the two U-shaped tin-plated copper-clad steel wires (conductors) are very easy to contact with each other, and short circuit is caused. In addition, since the positions of the six output pins are fixed, when the position of the annular iron core is changed, especially when the annular iron core is far away from the output pins, the connection part of the copper wire and the output pins is disconnected, so that the circuit breaking is caused.
Disclosure of Invention
The utility model aims to overcome the defects and shortcomings in the prior art, and provides a direct current transformer, which can position an annular iron core and two U-shaped tin-plated copper-clad steel wires, keep the positions of the annular iron core and the two U-shaped tin-plated copper-clad steel wires unchanged, and can avoid short circuits caused by mutual contact with the two U-shaped tin-plated copper-clad steel wires and can also avoid open circuits caused by disconnection of copper wires away from an output pin after assembly and encapsulation, so that the normal service life of the direct current transformer is ensured.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the direct current transformer comprises a shell and an electronic element packaged in the shell, wherein the shell comprises a shell with an open bottom end and a support plate packaged at a bottom port of the shell, the electronic element comprises two U-shaped tin-plated copper-clad steel wires, an annular iron core and three copper wires wound on the annular iron core, two limiting plates which are integrally connected are arranged on the support plate, a notch for clamping the annular iron core is formed between the two limiting plates, two through holes are respectively formed in the outer sides of the two limiting plates on the support plate, two clamping grooves are respectively formed in the top surface of each limiting plate, the transverse part of each U-shaped tin-plated copper-clad steel wire penetrates through the inner part of the annular iron core and is correspondingly clamped in the two oppositely arranged clamping grooves, and the vertical part of each U-shaped tin-plated copper-clad steel wire is correspondingly inserted downwards and is led out after penetrating through the two oppositely arranged through holes, so that four input pins are formed in a conformal mode; six through holes are respectively formed in one side of the supporting plate, output pins are inserted into each through hole, and two ends of the three copper wires are respectively connected with six output pins correspondingly.
Further, one side of the supporting plate is provided with integrally connected bosses along the width direction of the supporting plate, and the six through holes are distributed on the bosses at intervals along the length direction of the bosses.
Further, the annular iron core comprises an annular iron core main body and an annular protective shell, wherein the annular iron core main body and the annular protective shell are formed by rolling iron-based nanocrystalline strips, and the annular iron core main body is encapsulated in the annular protective shell.
Further, casing, layer board, two limiting plates, boss and annular protective case all be the PPT working of plastics, wherein casing, layer board, two limiting plates and boss pass through 3D and print integrated into one piece.
Furthermore, the four corners of the shell are respectively provided with a support column which is integrally connected, and the four corners of the supporting plate are respectively and correspondingly abutted with the support columns at the four corners.
Further, epoxy resin glue is filled in the shell, after the epoxy resin glue is solidified, the electronic element is packaged in the shell, and the supporting plate is packaged at the bottom port of the shell.
Compared with the prior art, the utility model has the beneficial effects that:
the supporting plate adopted by the utility model is provided with the two integrally connected limiting plates, so that a notch for clamping the annular iron core can be formed, the annular iron core is positioned, the position of the annular iron core is kept unchanged, and meanwhile, each limiting plate is provided with the two clamping grooves corresponding to clamping of the two U-shaped tin-plated copper-clad steel wires (conductors), the positioning of the two U-shaped tin-plated copper-clad steel wires is realized, the positions of the two U-shaped tin-plated copper-clad steel wires are kept unchanged, after the U-shaped tin-plated copper-clad steel wires are assembled and packaged, the short circuit caused by mutual contact with the two U-shaped tin-plated copper-clad steel wires is avoided, and the open circuit caused by disconnection of copper wires from the output pins is avoided, so that the normal service life of the direct current transformer is ensured.
Drawings
Fig. 1 is a schematic view of the external structure of the present utility model.
Fig. 2 is a schematic structural view of a pallet, two limiting plates and upper parts thereof according to the present utility model.
Fig. 3 is a schematic structural view of a pallet and two limiting plates according to the present utility model.
Fig. 4 is a schematic structural view of the annular shield according to the present utility model.
Fig. 5 is a schematic view showing an internal structure of the housing according to the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, a direct current transformer comprises a shell and an electronic element packaged in the shell, wherein the shell comprises a shell 1 with an open bottom end and a supporting plate 2 packaged at the bottom end port of the shell 1, the electronic element comprises two U-shaped tin-plated copper-clad steel wires (conductors) 3, an annular iron core 4 and three copper wires (coils) 5 wound on the annular iron core 4, two limiting plates 6 which are integrally connected are arranged on the supporting plate 2, a notch 7 for clamping the annular iron core 4 is formed between the two limiting plates 6, two through holes 8 are respectively formed in the outer side of the two limiting plates 6 on the supporting plate 2, two clamping grooves 9 are respectively formed in the top surface of each limiting plate, the transverse part of each U-shaped tin-plated copper-clad steel wire passes through the inner part of the annular iron core 4 and is correspondingly clamped in the two opposite clamping grooves 9 respectively, and the vertical part of each U-shaped tin-plated copper-clad steel wire is correspondingly inserted downwards and is led out after passing through the two through holes 8 which are oppositely arranged, so that four input pins 10 are formed in a conformal manner; six through holes 11 are respectively arranged on one side of the supporting plate 2, output pins 12 are respectively inserted into each through hole, and two ends of the three copper wires 5 are respectively connected with the six output pins 12 correspondingly.
In the utility model, one side of the supporting plate 2 is provided with integrally connected bosses 13 along the width direction, and six through holes 11 are distributed on the bosses 13 at intervals along the length direction of the bosses 13.
Therefore, the boss 13 with the thickness larger than that of the supporting plate 2 is arranged, so that the output pins 12 can be conveniently inserted and mounted, and the output pins 12 can be kept stable.
In the present utility model, the annular iron core 4 includes an annular iron core body (not shown) formed by rolling an iron-based nanocrystalline strip and an annular casing 14, and the annular iron core body is enclosed inside the annular casing 14.
The nanocrystalline strip is an iron-based soft magnetic alloy material with an ultracrystalline structure (the grain size is about 10 nm), and has excellent soft magnetic properties such as high saturation magnetic induction, high magnetic permeability, low loss and the like, so that the nanocrystalline strip is widely applied to the fields of electric power, industrial power, new energy, rail transit, consumer electronics, wireless charging and the like.
The thickness of the iron-based nanocrystalline strip is generally 14-26 mu m, the width of the iron-based nanocrystalline strip is 2-80 mm, and the iron-based nanocrystalline strip can be manufactured into various magnetic component products such as iron cores, devices or shielding plates, can well meet the performance requirements of high frequency and low loss, and assist the development of electronic equipment in the high frequency, miniaturization and light weight directions.
However, the iron-based nanocrystalline strip has the disadvantage of being fragile and loose, and therefore, by providing the annular protective case 14, the annular iron core body wound up by the iron-based nanocrystalline strip is encapsulated inside the annular iron core body, and the annular iron core body can be well protected.
In the utility model, the shell 1, the supporting plate 2, the two limiting plates 6, the boss 13 and the annular protective shell 14 are all PPT plastic parts, wherein the shell 1, the supporting plate 2, the two limiting plates 6 and the boss 13 are integrally formed through 3D printing, mass production can be performed, and the manufacturing cost is low.
In the utility model, four corners of the shell 1 are respectively provided with support columns 15 integrally connected, and four corners of the supporting plate 2 are respectively correspondingly abutted with the support columns 15 at the four corners.
Thus, the supporting columns 15 are arranged at four corners of the shell 1, so that the supporting and limiting functions of the supporting plate 2 are realized, and the supporting plate 2 is prevented from sinking during packaging.
In the utility model, the epoxy resin glue is filled in the shell 1, after solidification, the electronic element can be packaged in the shell 1, and the supporting plate 2 is packaged at the bottom port of the shell 1, so that the sealing is realized.
The utility model is further described below with reference to the accompanying drawings:
during assembly, the transverse parts of the two U-shaped tin-plated copper-clad steel wires (conductors) 3 penetrate through the annular iron core 4, then the annular iron core 4 on which three copper wires (coils) 5 are wound is clamped into the notch 7 between the two limiting plates 6, then the transverse parts of the two U-shaped tin-plated copper-clad steel wires 3 are respectively clamped into the two clamping grooves 9 on the top surfaces of the two limiting plates 6 correspondingly, and simultaneously the vertical parts of the two U-shaped tin-plated copper-clad steel wires 3 are respectively inserted into the four through holes 8 on the supporting plate 2 and led out to serve as four input pins; then, two ends of the three copper wires 5 are respectively connected with six output pins 12 inserted on the supporting plate 2 correspondingly.
When in packaging, the shell 1 is inverted, the bottom end opening of the shell is upwards arranged, the supporting plate 2 is slightly lifted, a proper amount of epoxy resin glue is injected into the shell 1, then the supporting plate 2 is pressed until the supporting plate is abutted against the supporting columns 15 at four corners of the shell 1, after the epoxy resin glue is solidified, the electronic element can be packaged in the shell 1, and the supporting plate 2 is packaged in the bottom end opening of the shell 1.
The two limiting plates 6 which are integrally connected are arranged on the supporting plate 2, so that the notch 7 for clamping the annular iron core 4 can be formed, the annular iron core 4 is positioned, the position of the annular iron core 4 is kept unchanged, meanwhile, two clamping grooves 9 which are correspondingly used for clamping the two U-shaped tin-plated copper-clad steel wires 3 are formed in each limiting plate, the two U-shaped tin-plated copper-clad steel wires 3 are positioned, and the positions of the two U-shaped tin-plated copper-clad steel wires 3 are kept unchanged, therefore, after the U-shaped tin-plated copper-clad steel wires 3 are assembled and packaged, the short circuit caused by mutual contact with the two U-shaped tin-plated copper-clad steel wires 3 is avoided, and the open circuit caused by disconnection of copper wires away from six output pins 12 is avoided, so that the normal service life of the direct current transformer can be ensured.
Although the present disclosure describes embodiments, not every embodiment is described in terms of a single embodiment, and such description is for clarity only, and one skilled in the art will recognize that the embodiments described in the disclosure as a whole may be combined appropriately to form other embodiments that will be apparent to those skilled in the art.
Therefore, the above description is not intended to limit the scope of the utility model; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (6)
1. The utility model provides a direct current transformer, includes the shell and encapsulates in the inside electronic component of shell, the shell including the open casing in bottom and encapsulation in the layer board of casing bottom port, electronic component is including two U-shaped tinned copper clad steel wires, annular iron core and around three copper lines on annular iron core, its characterized in that: the support plate is provided with two integrally connected limiting plates, a notch for clamping the annular iron core is formed between the two limiting plates, two through holes are respectively formed in the outer sides of the two limiting plates on the support plate, two clamping grooves are respectively formed in the top surface of each limiting plate, the transverse parts of each U-shaped tin-plated copper-clad steel wire penetrate through the annular iron core and are correspondingly clamped in the two clamping grooves which are oppositely arranged, and the vertical parts of each U-shaped tin-plated copper-clad steel wire are downwards correspondingly inserted into and led out after penetrating through the two through holes which are oppositely arranged, so that four input pins are formed in a conformal manner; six through holes are respectively formed in one side of the supporting plate, output pins are inserted into each through hole, and two ends of the three copper wires are respectively connected with six output pins correspondingly.
2. A direct current transformer according to claim 1, characterized in that: one side of the supporting plate is provided with integrally connected bosses along the width direction of the supporting plate, and the six through holes are distributed on the bosses at intervals along the length direction of the bosses.
3. A direct current transformer according to claim 1, characterized in that: the annular iron core comprises an annular iron core main body and an annular protective shell, wherein the annular iron core main body and the annular protective shell are formed by rolling iron-based nanocrystalline strips, and the annular iron core main body is encapsulated in the annular protective shell.
4. A direct current transformer according to claim 3, characterized in that: the shell, the supporting plate, the two limiting plates, the boss and the annular protective shell are PPT plastic parts, and the shell, the supporting plate, the two limiting plates and the boss are integrally formed through 3D printing.
5. A direct current transformer according to claim 1, characterized in that: the four corners of the shell are respectively provided with a support column which is integrally connected, and the four corners of the supporting plate are respectively and correspondingly abutted with the support columns at the four corners.
6. A direct current transformer according to claim 1, characterized in that: and epoxy resin glue is filled in the shell, after the epoxy resin glue is solidified, the electronic element is packaged in the shell, and the supporting plate is packaged at the bottom port of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321210479.2U CN220041576U (en) | 2023-05-17 | 2023-05-17 | Direct current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321210479.2U CN220041576U (en) | 2023-05-17 | 2023-05-17 | Direct current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220041576U true CN220041576U (en) | 2023-11-17 |
Family
ID=88722720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321210479.2U Active CN220041576U (en) | 2023-05-17 | 2023-05-17 | Direct current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220041576U (en) |
-
2023
- 2023-05-17 CN CN202321210479.2U patent/CN220041576U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11094449B2 (en) | Methods and apparatus for isolation barrier with integrated magnetics for high power modules | |
| US9230728B2 (en) | Magnetic device with high saturation current and low core loss | |
| CN101345327B (en) | Coil unit and electronic instrument | |
| CN103999174B (en) | Coil component | |
| US8049588B2 (en) | Coil device | |
| US20080036566A1 (en) | Electronic Component And Methods Relating To Same | |
| US7352270B1 (en) | Printed circuit board with magnetic assembly | |
| CN111681858B (en) | Magnetic element structure with heat-conducting filler and manufacturing method thereof | |
| CN208433274U (en) | Multisection type air gap transformator | |
| CN220041576U (en) | Direct current transformer | |
| CN201936720U (en) | Double-induction inductance element | |
| CN203774075U (en) | Welded power transformer of annular printed circuit board | |
| CN104425122A (en) | Manufacturing method and structure of inductor | |
| CN203659569U (en) | Wire-wound chip power inductor | |
| CN203444906U (en) | Structure of inductor | |
| CN206293428U (en) | Chip encapsulation module | |
| CN211455492U (en) | Rie font flat wire immediately winds PFC inductance and waterproof day font flat wire immediately winds PFC inductance | |
| EP4187562A1 (en) | Power inductor and preparation method therefor, and system-in-package module | |
| CN201402721Y (en) | Planar transformer | |
| CN107808879A (en) | A kind of Switching Power Supply module and its method for packing | |
| CN220627583U (en) | Patch type current transformer | |
| CN207217246U (en) | A kind of chip inductor suitable for volume production | |
| CN216902498U (en) | Full-shielding large-current inductor | |
| CN106935376B (en) | Transformer and switching power supply | |
| CN212851460U (en) | High power density planar magnetic assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |