CN211125330U - Transformer with shielding function - Google Patents
Transformer with shielding function Download PDFInfo
- Publication number
- CN211125330U CN211125330U CN201921456731.1U CN201921456731U CN211125330U CN 211125330 U CN211125330 U CN 211125330U CN 201921456731 U CN201921456731 U CN 201921456731U CN 211125330 U CN211125330 U CN 211125330U
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- CN
- China
- Prior art keywords
- iron block
- iron plate
- shielding
- shielding sheet
- vertical
- 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.)
- Expired - Fee Related
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 190
- 229910052742 iron Inorganic materials 0.000 claims abstract description 91
- 239000006260 foam Substances 0.000 claims description 8
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 239000011889 copper foil Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 4
- 239000003063 flame retardant Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
Images
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model discloses a there is shielding function transformer, the casing has, install "say" style of calligraphy iron core in the casing, the iron core is by last horizontal iron plate, well horizontal iron plate, lower horizontal iron plate, left vertical iron plate and right vertical iron plate constitute, the left end of last horizontal iron plate is around being equipped with U looks primary, the right-hand member of last horizontal iron plate is around being equipped with U looks secondary, the left end of well horizontal iron plate is around being equipped with V looks primary, the right-hand member of well horizontal iron plate is around being equipped with V looks secondary, the left end of lower horizontal iron plate is around being equipped with W looks primary, the right-hand member of lower horizontal iron plate is around being equipped with W looks secondary, the fixed horizontal shielding piece that is provided with between last horizontal iron plate and the well horizontal iron plate, the fixed horizontal shielding piece that is provided with down between lower horizontal iron plate and the well horizontal iron plate, the fixed vertical shielding piece that is provided with between left vertical iron plate and the right vertical iron plate. This have shielding function transformer's simple structure, reasonable in design, the shielding effect is showing, effectively improves the electromagnetic interference problem, is convenient for extensively promote and use.
Description
Technical Field
The utility model belongs to the technical field of the technique of transformer and specifically relates to a there is shielding function transformer.
Background
The transformer changes an alternating voltage using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil, and an iron core (magnetic core). The main functions are as follows: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), and the like. According to the application, the method can be divided into: power transformers and special transformers (furnace transformers, rectification transformers, power frequency test transformers, voltage regulators, mining transformers, audio transformers, intermediate frequency transformers, high frequency transformers, impact transformers, instrument transformers, electronic transformers, reactors, mutual inductors, etc.).
Due to the defects of the existing transformers on the market in structural design, most transformers have the characteristic of poor shielding effect, and the problem of electromagnetic interference is serious.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: in order to solve the problems existing in the background technology, the transformer with the shielding function is provided, the shielding effect is obvious, and the problem of electromagnetic interference is effectively solved.
The utility model provides a technical scheme that its technical problem adopted is: there is shielding function transformer, has the casing, the casing in install "say" style of calligraphy iron core, the iron core constitute by last horizontal iron plate, well horizontal iron plate, lower horizontal iron plate, left vertical iron plate and right vertical iron plate, the left end of last horizontal iron plate around being equipped with U looks primary, the right-hand member of last horizontal iron plate is around being equipped with U looks secondary, the left end of well horizontal iron plate around being equipped with V looks primary, the right-hand member of well horizontal iron plate around being equipped with V looks secondary, the left end of lower horizontal iron plate around being equipped with W looks primary, the right-hand member of lower horizontal iron plate around being equipped with W looks secondary, go up horizontal iron plate and well horizontal iron plate between the fixed horizontal shielding piece that is provided with, horizontal shielding piece down between horizontal iron plate and the well horizontal iron plate between the fixed shielding piece down, left vertical iron plate and right vertical iron plate between the fixed vertical shielding piece that is provided with, the vertical shielding sheet is used for shielding electromagnetic interference between the U-phase primary coil and the U-phase secondary coil, electromagnetic interference between the V-phase primary coil and the V-phase secondary coil and electromagnetic interference between the W-phase primary coil and the W-phase secondary coil, the upper transverse shielding sheet is used for shielding electromagnetic interference between the U-phase primary coil and the V-phase primary coil and electromagnetic interference between the U-phase secondary coil and the V-phase secondary coil, and the lower transverse shielding sheet is used for shielding electromagnetic interference between the V-phase primary coil and the W-phase primary coil and electromagnetic interference between the V-phase secondary coil and the W-phase secondary coil.
More specifically, in the above technical solution, the upper transverse shielding plate is located between the upper transverse iron block and the middle transverse iron block.
More specifically, in the above technical solution, the lower transverse shielding plate is located between the lower transverse iron block and the middle transverse iron block.
More specifically, in the above technical solution, the vertical shielding plate is located between the left vertical iron block and the right vertical iron block.
More specifically, in the above technical solution, the upper transverse shielding plate, the lower transverse shielding plate and the vertical shielding plate are all made of foam.
More specifically, in the above technical solution, the upper transverse shielding plate, the lower transverse shielding plate and the vertical shielding plate are all made of pressure sensitive adhesive tapes.
More specifically, in the above technical solution, the upper transverse shielding plate, the lower transverse shielding plate and the vertical shielding plate are all made of copper foil cloth.
The utility model has the advantages that: the utility model provides a there is shielding function transformer, simple structure, reasonable in design, the shielding effect is showing, effectively improves the electromagnetic interference problem, is convenient for extensively promote and use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a first schematic structural diagram of a core;
fig. 3 is a schematic structural diagram of a core.
The reference numbers in the drawings are: 1. a housing; 2. an iron core; 2-1, an upper transverse iron block; 2-2, a middle transverse iron block; 2-3, lower transverse iron blocks; 2-4, a left vertical iron block; 2-5, right vertical iron blocks; 3. a U-phase primary coil; 4. a U-phase secondary coil; 5. a V-phase primary coil; 6. a V-phase secondary coil; 7. a W-phase primary coil; 8. a W-phase secondary coil; 9. an upper transverse shielding sheet; 10. a lower transverse shield plate; 11. vertical shielding piece.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to further explain the present invention in detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "one side", "the other side", "both sides", "between", "middle part", "upper end", "lower end", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, 2 and 3, the transformer with shielding function of the present invention has a housing 1, a core 2 of a shape like a Chinese character ri is installed in the housing 1, the core 2 is composed of an upper transverse iron block 2-1, a middle transverse iron block 2-2, a lower transverse iron block 2-3, a left vertical iron block 2-4 and a right vertical iron block 2-5, a U-phase primary coil 3 is wound around the left end of the upper transverse iron block 2-1, a U-phase secondary coil 4 is wound around the right end of the upper transverse iron block 2-1, a V-phase primary coil 5 is wound around the left end of the middle transverse iron block 2-2, a V-phase secondary coil 6 is wound around the right end of the middle transverse iron block 2-2, a W-phase primary coil 7 is wound around the left end of the lower transverse iron block 2-3, a W-phase secondary coil 8 is wound around the right end of the lower transverse iron block 2-3, an upper transverse shielding plate 9 is fixedly installed between the upper transverse iron block 2-1 and the middle transverse iron block 2-2, a lower transverse shielding sheet 10 is fixedly arranged between the lower transverse iron block 2-3 and the middle transverse iron block 2-2, a vertical shielding sheet 11 is fixedly arranged between the left vertical iron block 2-4 and the right vertical iron block 2-5, the vertical shielding sheet 11 is used for shielding electromagnetic interference between the U-phase primary coil 3 and the U-phase secondary coil 4, the upper transverse shielding sheet 9 is used for shielding electromagnetic interference between the U-phase primary coil 3 and the V-phase primary coil 5 and electromagnetic interference between the U-phase secondary coil 4 and the V-phase secondary coil 6, and the lower transverse shielding sheet 10 is used for shielding electromagnetic interference between the V-phase primary coil 5 and the W-phase primary coil 7 and electromagnetic interference between the V-phase secondary coil 6 and the W-phase secondary coil 8.
The upper transverse shielding plate 9 is positioned between the upper transverse iron block 2-1 and the middle transverse iron block 2-2.
The lower transverse shielding plate 10 is positioned between the lower transverse iron block 2-3 and the middle transverse iron block 2-2.
The vertical shielding sheet 11 is positioned between the left vertical iron block 2-4 and the right vertical iron block 2-5.
The upper transverse shielding sheet 9, the lower transverse shielding sheet 10 and the vertical shielding sheet 11 are all made of foam, wherein the foam can be polyurethane, and 5to 10% of compression deformation, black or gray, and the flame-retardant and compressible foam has the advantage of flame retardance. The foam may also be a thermoplastic rubber, less than 20% compression set, yellow or white, which has the advantage of being flame retardant. The foam can also be metallized foam, less than 5% compression set, gray.
Alternatively, the upper transverse shielding plate 9, the lower transverse shielding plate 10 and the vertical shielding plate 11 are all made of a pressure sensitive adhesive tape, wherein the pressure sensitive adhesive tape may be 3MTM9485 has a short-term heat resistance of 232 deg.C and a long-term heat resistance of 149 deg.C, and has the advantages of high peel strength and high heat resistance. The pressure sensitive adhesive tape can also be Nitto D5052, and has short-term heat resistance of 155 deg.C and long-term heat resistance of 160 deg.C, and has the advantages of high internal adhesion strength, high peel strength and high heat resistance. The pressure sensitive adhesive tape may also be 3MTM950, short-term heat resistance of 121 ℃ and long-term heat resistance of 82 ℃, which has the advantage of high peel strength.
Or the upper transverse shielding sheet 9, the lower transverse shielding sheet 10 and the vertical shielding sheet 11 are all made of copper foil cloth, wherein the copper foil cloth is made of pure soft copper and polyester fiber in a mixing mode, the resistivity is not more than 0.02, and the heat-conducting flame-retardant heat-conducting material has the advantages of being capable of being formed at will, flame-retardant, good in electric conductivity and capable.
This have shielding function transformer's simple structure, reasonable in design, the shielding effect is showing, effectively improves the electromagnetic interference problem, is convenient for extensively promote and use.
The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. There is shielding function transformer, its characterized in that: has a shell (1), an iron core (2) shaped like a Chinese character 'ri' is installed in the shell (1), the iron core (2) consists of an upper transverse iron block (2-1), a middle transverse iron block (2-2), a lower transverse iron block (2-3), a left vertical iron block (2-4) and a right vertical iron block (2-5), the left end of the upper transverse iron block (2-1) is wound with a U-phase primary coil (3), the right end of the upper transverse iron block (2-1) is wound with a U-phase secondary coil (4), the left end of the middle transverse iron block (2-2) is wound with a V-phase primary coil (5), the right end of the middle transverse iron block (2-2) is wound with a V-phase secondary coil (6), the left end of the lower transverse iron block (2-3) is wound with a W-phase primary coil (7), the electromagnetic interference shielding device is characterized in that a W-phase secondary coil (8) is wound at the right end of the lower transverse iron block (2-3), an upper transverse shielding sheet (9) is fixedly arranged between the upper transverse iron block (2-1) and the middle transverse iron block (2-2), a lower transverse shielding sheet (10) is fixedly arranged between the lower transverse iron block (2-3) and the middle transverse iron block (2-2), a vertical shielding sheet (11) is fixedly arranged between the left vertical iron block (2-4) and the right vertical iron block (2-5), the vertical shielding sheet (11) is used for shielding electromagnetic interference between the U-phase primary coil (3) and the U-phase secondary coil (4), electromagnetic interference between the V-phase primary coil (5) and the V-phase secondary coil (6) and electromagnetic interference between the W-phase primary coil (7) and the W-phase secondary coil (8), and the upper transverse shielding sheet (9) is used for shielding electromagnetic interference between the U-phase primary coil (3) and the V-phase primary coil (5) The lower transverse shielding sheet (10) is used for shielding the electromagnetic interference between the V-phase primary coil (5) and the W-phase primary coil (7) and the electromagnetic interference between the V-phase secondary coil (6) and the W-phase secondary coil (8).
2. The shielded functional transformer of claim 1, wherein: the upper transverse shielding sheet (9) is positioned between the upper transverse iron block (2-1) and the middle transverse iron block (2-2).
3. The shielded functional transformer of claim 1, wherein: the lower transverse shielding sheet (10) is positioned between the lower transverse iron block (2-3) and the middle transverse iron block (2-2).
4. The shielded functional transformer of claim 1, wherein: the vertical shielding sheet (11) is positioned between the left vertical iron block (2-4) and the right vertical iron block (2-5).
5. The shielded functional transformer of claim 1, wherein: the upper transverse shielding sheet (9), the lower transverse shielding sheet (10) and the vertical shielding sheet (11) are all made of foam.
6. The shielded functional transformer of claim 1, wherein: the upper transverse shielding sheet (9), the lower transverse shielding sheet (10) and the vertical shielding sheet (11) are all made of pressure sensitive adhesive tapes.
7. The shielded functional transformer of claim 1, wherein: the upper transverse shielding sheet (9), the lower transverse shielding sheet (10) and the vertical shielding sheet (11) are all made of copper foil cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921456731.1U CN211125330U (en) | 2019-09-04 | 2019-09-04 | Transformer with shielding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921456731.1U CN211125330U (en) | 2019-09-04 | 2019-09-04 | Transformer with shielding function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211125330U true CN211125330U (en) | 2020-07-28 |
Family
ID=71689624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921456731.1U Expired - Fee Related CN211125330U (en) | 2019-09-04 | 2019-09-04 | Transformer with shielding function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211125330U (en) |
-
2019
- 2019-09-04 CN CN201921456731.1U patent/CN211125330U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200728 |