CN215578109U - Magnetic core structure of electronic transformer and electronic transformer - Google Patents
Magnetic core structure of electronic transformer and electronic transformer Download PDFInfo
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- CN215578109U CN215578109U CN202121679859.1U CN202121679859U CN215578109U CN 215578109 U CN215578109 U CN 215578109U CN 202121679859 U CN202121679859 U CN 202121679859U CN 215578109 U CN215578109 U CN 215578109U
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- 238000004519 manufacturing process Methods 0.000 abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052802 copper Inorganic materials 0.000 abstract description 6
- 239000010949 copper Substances 0.000 abstract description 6
- 238000004804 winding Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
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Abstract
The utility model discloses a magnetic core structure of an electronic transformer and the electronic transformer, wherein, a first magnetic core body comprises a first shell and a first center pillar, a second magnetic core body comprises a second shell and a second center pillar, the end surfaces of the first shell and the second shell are superposed, and the end surfaces of the first center pillar and the second center pillar are superposed; the side of the first center pillar forms the side of the containing cavity and comprises a first semi-cylindrical surface and a second semi-cylindrical surface which are arranged oppositely and two first planes which are connected with the first semi-cylindrical surface and the second semi-cylindrical surface, and the side of the second center pillar comprises a third semi-cylindrical surface and a fourth semi-cylindrical surface which are arranged oppositely and two second planes which are connected with the third semi-cylindrical surface and the fourth semi-cylindrical surface. The magnetic core structure of the electronic transformer provided by the technical scheme of the utility model can reduce the copper loss of the transformer, save the using amount of copper wires and reduce the production cost.
Description
Technical Field
The utility model relates to the technical field of transformers, in particular to a magnetic core structure of an electronic transformer and the electronic transformer.
Background
Transformers are devices that transform voltage, current and impedance. A transformer consists of a magnetic core and a coil, the coil including a coil winding and a bobbin (if necessary), the coil winding typically having two or more windings. The magnetic core and the coil are called as a transformer body, and are the basis for establishing a magnetic field and transmitting energy.
The magnetic core structure of the existing transformer causes the sectional area of the center pillar of the transformer to be small, further causes the power density of the transformer to be small, and has low production efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a magnetic core structure of an electronic transformer and the electronic transformer, and aims to solve the technical problems of low transformer power density and low production efficiency of the conventional electronic transformer due to the shape of the magnetic core structure.
In order to achieve the above object, the magnetic core structure of an electronic transformer provided by the present invention includes a first magnetic core body and a second magnetic core body, the first magnetic core body includes a first shell and a first center pillar, the second magnetic core body includes a second shell and a second center pillar, the first shell overlaps an end surface of the second shell, the first center pillar overlaps an end surface of the second center pillar, the first shell, the first center pillar, the second shell, and the second center pillar cooperate to enclose an accommodating cavity surrounding the first center pillar and the second center pillar, and an opening communicating the accommodating cavity is formed on the same side of the first shell, the first center pillar, the second shell, and the second center pillar;
the side of the first center pillar forms the side of the containing cavity and comprises a first semi-cylindrical surface and a second semi-cylindrical surface which are arranged oppositely and two first planes which are connected with the first semi-cylindrical surface and the second semi-cylindrical surface, the side of the second center pillar comprises a third semi-cylindrical surface and a fourth semi-cylindrical surface which are arranged oppositely and two second planes which are connected with the third semi-cylindrical surface and the fourth semi-cylindrical surface, and the first semi-cylindrical surface corresponds to the third semi-cylindrical surface in position.
Optionally, the first semi-cylindrical surface and the third semi-cylindrical surface both face the opening, wherein the first semi-cylindrical surface, the third semi-cylindrical surface, the first housing, and the second housing are disposed flush with each other toward a side end surface of the opening.
Optionally, the first shell comprises a first bottom plate and a first side column, the first side column surrounds the first center pillar and is connected with the same side of the first bottom plate, the second shell comprises a second bottom plate and a second side column, the second side column surrounds the second center pillar and is connected with the same side of the second bottom plate, and the first side column deviates from the end face of the first bottom plate and the second side column deviates from the end face superposition arrangement of the second bottom plate.
Optionally, the first side column and the first center column are both perpendicular to the first bottom plate, and the second side column and the second center column are both perpendicular to the second bottom plate.
Optionally, the first side column is connected to an edge of the first base plate, and the second side column is connected to an edge of the second base plate.
Optionally, the first side column has an inner wall surface forming the accommodating cavity, and includes two opposite first inner side walls and a first inner top wall connecting the two first inner side walls, where the two first inner side walls are planar and parallel to the first plane, and the first inner top wall is arc-shaped and matched with the first semi-cylindrical surface;
the second side column is provided with an inner wall surface forming the accommodating cavity, and comprises two opposite second inner side walls and a second inner top wall connected with the two second inner side walls, wherein the two second inner side walls are planar and arranged in parallel with the second plane, and the second inner top wall is arc-surface-shaped and matched with the third half-cylindrical surface.
Optionally, a first inner bottom surface of the accommodating cavity formed by the first bottom plate and a second inner bottom surface of the accommodating cavity formed by the second bottom plate are both planes.
Optionally, the first inner bottom surface and the second inner bottom surface are arranged in parallel.
Optionally, the first center pillar, the first bottom plate and the first side pillar are an integral structure;
the second center pillar, the second bottom plate and the second side pillar are of an integral structure.
The utility model also provides an electronic transformer, which comprises the magnetic core structure of the electronic transformer.
According to the technical scheme, the first magnetic core body and the second magnetic core body are arranged oppositely, and the first shell, the first center pillar, the second shell and the second center pillar are matched to enclose the accommodating cavity surrounding the first center pillar and the second center pillar. The side of first center pillar and second center pillar forms the side in holding chamber, and the side of first center pillar is including relative first semi-cylindrical surface and the second semi-cylindrical surface that sets up and connect first semi-cylindrical surface and two first planes of second semi-cylindrical surface. The side of the second center pillar comprises a third semi-cylindrical surface and a fourth semi-cylindrical surface which are oppositely arranged and two second planes which are connected with the third semi-cylindrical surface and the fourth semi-cylindrical surface. Like this, the plane that the perpendicular to both axis directions of first center pillar and second center pillar's cross-section is for being similar to playground runway encloses can increase the Ae value of transformer, reduces the required wire winding number of turns of transformer to, reduced transformer copper loss, saved the copper line quantity, reduction in production cost has effectively improved power density. On the other hand, the accommodating cavity is also provided with an opening communicated with the accommodating cavity, and the opening is positioned on the same side of the first center pillar, the second center pillar, the first shell and the second shell, so that the wire outlet space of the transformer is increased, and the production efficiency is improved.
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 of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of a magnetic core structure of an electronic transformer according to the present invention;
FIG. 2 is a schematic structural diagram of a first magnetic core body of an electronic transformer according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a second magnetic core body of the magnetic core structure of the electronic transformer according to the embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | First |
220 | |
| 110 | |
221 | Third |
| 111 | |
222 | Fourth |
| 112 | |
223 | |
| 120 | |
300 | Containing |
| 121 | First semi-cylindrical surface | 310 | A first |
| 122 | Second |
311 | First inner |
| 123 | First plane | 312 | A first |
| 200 | Second |
313 | First |
| 210 | |
320 | |
| 211 | |
321 | Second |
| 212 | |
322 | Second |
| 323 | Second inner bottom surface |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a magnetic core structure of an electronic transformer.
In the embodiment of the present invention, as shown in fig. 1 to 3, the magnetic core structure includes a first magnetic core body 100 and a second magnetic core body 200, the first magnetic core body 100 includes a first shell 110 and a first center pillar 120, the second magnetic core body 200 includes a second shell 210 and a second center pillar 220, the first shell 110 overlaps an end surface of the second shell 210, the first center pillar 120 overlaps an end surface of the second center pillar 220, the first shell 110, the first center pillar 120, the second shell 210, and the second center pillar 220 cooperate to enclose an accommodating cavity 300 surrounding the first center pillar 120 and the second center pillar 220, and an opening communicating with the accommodating cavity 300 is formed on the same side of the four sides;
the side surfaces of the first center pillar 120 and the second center pillar 220 form the side surfaces of the accommodating cavity 300, the side surface of the first center pillar 120 includes a first semi-cylindrical surface 121 and a second semi-cylindrical surface 122 which are oppositely arranged, and two first planes 123 connecting the first semi-cylindrical surface 121 and the second semi-cylindrical surface 122, the side surface of the second center pillar 220 includes a third semi-cylindrical surface 221 and a fourth semi-cylindrical surface 222 which are oppositely arranged, and two second planes 223 connecting the third semi-cylindrical surface 221 and the fourth semi-cylindrical surface 222, and the first semi-cylindrical surface 121 and the third semi-cylindrical surface 221 correspond in position.
In the present embodiment, the first core body 100 and the second core body 200 are symmetrically disposed. The outer side surfaces of the first shell 110 and the second shell 210 further include four square surfaces perpendicular to each other, and the first center pillar 120 and the second center pillar 220 are solid structures, and two opposite side surfaces of the square pillar are connected to two opposite semi-cylindrical structures. In a specific implementation process, the accommodating chamber 300 includes a first accommodating chamber 310 and a second accommodating chamber 320 that are communicated with each other, the first accommodating chamber 310 is formed between the first pillar 120 and the first housing 110, and the second accommodating chamber 320 is formed between the second pillar 220 and the second housing 210. The first semi-cylindrical surface 121, the second semi-cylindrical surface 122 and the two first planes 123 are in smooth transition, and the third semi-cylindrical surface 221, the fourth semi-cylindrical surface 222 and the two second planes 223 are in smooth transition.
The technical scheme of the utility model adopts the first magnetic core body 100 and the second magnetic core body 200 which are oppositely arranged, and the first shell 110, the first center pillar 120, the second shell 210 and the second center pillar 220 are matched to enclose the accommodating cavity 300 which surrounds the first center pillar 120 and the second center pillar 220. The side surfaces of the first and second center pillars 120 and 220 form the side surface of the accommodating chamber 300, and the side surface of the first center pillar 120 includes a first semi-cylindrical surface 121 and a second semi-cylindrical surface 122 which are oppositely arranged, and two first planes 123 connecting the first semi-cylindrical surface 121 and the second semi-cylindrical surface 122. The side surface of the second center pillar 220 includes a third semi-cylindrical surface 221 and a fourth semi-cylindrical surface 222 which are oppositely disposed, and two second planes 223 connecting the third semi-cylindrical surface 221 and the fourth semi-cylindrical surface 222. Therefore, the cross sections of the first center pillar 120 and the second center pillar 220 perpendicular to the axial direction of the two pillars are planes similar to the plane defined by the playground runway, the Ae value of the transformer is increased, the number of turns of the winding wire required by the transformer is reduced, and therefore the copper loss of the transformer is reduced, the using amount of the copper wire is saved, the production cost is reduced, and the power density is effectively improved. On the other hand, the accommodating cavity 300 further has an opening communicated with the accommodating cavity, and the opening is located on the same side of the first center pillar 120, the second center pillar 220, the first shell 110, and the second shell 210, so that the outgoing space of the transformer is increased, and the production efficiency is improved.
Further, the first semi-cylindrical surface 121 and the third semi-cylindrical surface 221 both face the opening, wherein one side end surfaces of the first semi-cylindrical surface 121, the third semi-cylindrical surface 221, the first housing 110, and the second housing 210 facing the opening are flush.
In a specific implementation process, the opening enables the accommodating cavity 300 to communicate with the outside, and openings are disposed on two sides of the first center pillar 120 and the second center pillar 220.
Optionally, the first housing 110 includes a first bottom plate 111 and a first side column 112, the first side column 112 is disposed around the first center pillar 120 and is connected to the same side of the first bottom plate 111, the second housing 210 includes a second bottom plate 211 and a second side column 212, the second side column 212 is disposed around the second center pillar 220 and is connected to the same side of the second bottom plate 211, and an end surface of the first side column 112 facing away from the first bottom plate 111 and an end surface of the second side column 212 facing away from the second bottom plate 211 are disposed in an overlapping manner.
Further, the first side pillar 112 and the first center pillar 120 are both disposed perpendicular to the first base plate 111, and the second side pillar 212 and the second center pillar 220 are both disposed perpendicular to the second base plate 211.
Further, the first side column 112 is connected to an edge of the first base plate 111, and the second side column 212 is connected to an edge of the second base plate 211.
In the present embodiment, the first side pillar 112 and the first center pillar 120 are vertically connected to the same side of the first base plate 111, and a first receiving cavity 310 is formed between the first center pillar 120 and the first side pillar 112. The second side pillar 212 and the second center pillar 220 are vertically connected to the same side of the second base plate 211, and a second receiving cavity 320 is formed between the second center pillar 220 and the second side pillar 212. The end faces of the first center pillar 120 and the first side pillar 112 departing from the first bottom plate 111 are flush with each other, and the end faces of the second center pillar 220 and the second side pillar 212 departing from the second bottom plate 211 are flush with each other, so that the first magnetic core body 100 and the second magnetic core body 200 are arranged in a superposed manner.
The first semi-cylindrical surface 121 is flush with the plane of the first side column 112 near the opening, and the third semi-cylindrical surface 221 is flush with the plane of the second side column 212 near the opening.
Optionally, the first side pillar 112 has an inner wall surface forming the accommodating cavity 300, and includes two opposite first inner side walls 312 and a first inner top wall 311 connecting the two first inner side walls 312, where the two first inner side walls 312 are planar surfaces arranged parallel to the first plane 123, and the first inner top wall 311 is an arc surface shape adapted to the first semi-cylindrical surface 121;
the second side column 212 has an inner wall surface forming the accommodating cavity 300, and includes two opposite second inner side walls 322 and a second inner top wall 321 connecting the two second inner side walls 322, wherein the two second inner side walls 322 are planar surfaces arranged parallel to the second plane 223, and the second inner top wall 321 is an arc surface shape adapted to the third half-cylindrical surface 221.
In the present embodiment, the inner wall surfaces of the first side pillar 112 and the second side pillar 212 form the inner wall surface of the accommodating cavity 300. The two first inner sidewalls 312 form sidewalls of the first receiving chamber 310, and the two second inner sidewalls 322 form sidewalls of the second receiving chamber 320. The first inner top wall 311 forms a top wall of the first accommodating chamber 310, and the second inner top wall 321 forms a top wall of the second accommodating chamber 320, which together form an inner wall surface of the accommodating chamber 300.
Further, the first bottom plate 111 forms the first inner bottom surface 313 of the accommodating cavity 300 and the second bottom plate 211 forms the second inner bottom surface 323 of the accommodating cavity 300, which are both planar.
Further, the first inner bottom surface 313 and the second inner bottom surface 323 are arranged in parallel.
In the present embodiment, the first inner bottom surface 313 is formed on the plane of the first bottom plate 111 between the first center pillar 120 and the first side pillar 112, and the second inner bottom surface 323 is formed on the plane of the second bottom plate 211 between the second center pillar 220 and the second side pillar 212 in the accommodating chamber 300.
Optionally, the first center pillar 120, the first bottom plate 111 and the first side pillar 112 are an integral structure;
the second center pillar 220, the second bottom plate 211 and the second side pillar 212 are integrally formed.
In this way, the first magnetic core body 100 is formed integrally, and the second magnetic core body 200 is also formed integrally, so that the strength of the magnetic core body can be improved, and the production process can be simplified.
The present invention further provides an electronic transformer, which includes the above-mentioned magnetic core structure, and the specific structure of the magnetic core structure refers to the above-mentioned embodiments.
The core structure of the electronic transformer provided by the utility model is defined as EPO13 on one hand, and in the prior art, the core structure with cylindrical center pillar is EP13, and the core structure of EPO13 has the same inductance (L), current (I) and magnetic field intensity (B) and has the Ae value of 34mm of EPO13 under the same conditions of the traditional EP132EP13 having an Ae value of 19.5mm2EPO13 has an Ae value which is 1.74 times that of EP13, so that the number of turns required is 57% of EP 13.
With the coil winding with the same wire diameter, if EP13 winds 10 turns, EPO13 only needs to wind 6 turns, so that with EPO13, the copper loss is 60 percent of that of EP 13.
On the other hand, in the prior art, the magnetic core structure model of which the center pillar cross section is a half-runner shape is EPD13, compared with EPD13, the magnetic core structure EPO13 has the advantages that the width of an outlet of EPO13 is 4mm, the width of an outlet of EPD13 is 3mm, and the width of an outlet of EPO13 is 1.3 times that of EPD13, so that leading-out wires can be more conveniently arranged, and the production efficiency is improved.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A magnetic core structure of an electronic transformer is characterized in that the magnetic core structure comprises a first magnetic core body and a second magnetic core body, the first magnetic core body comprises a first shell and a first center pillar, the second magnetic core body comprises a second shell and a second center pillar, the end faces of the first shell and the second shell are overlapped, the end faces of the first center pillar and the second center pillar are overlapped, the first shell, the first center pillar, the second shell and the second center pillar are matched to enclose an accommodating cavity surrounding the first center pillar and the second center pillar, and an opening communicated with the accommodating cavity is formed in the same side of the first shell, the first center pillar, the second shell and the second center pillar;
the side of first center pillar and second center pillar forms the side in holding chamber, the side of first center pillar is including relative first semi-cylindrical surface and the second semi-cylindrical surface that sets up and connect first semi-cylindrical surface with two first planes of second semi-cylindrical surface, the side of second center pillar is including relative third semi-cylindrical surface and the fourth semi-cylindrical surface that sets up and connect third semi-cylindrical surface with two second planes of fourth semi-cylindrical surface, first semi-cylindrical surface with the third semi-cylindrical surface position corresponds.
2. The core structure of an electronic transformer according to claim 1, wherein the first semi-cylindrical surface and the third semi-cylindrical surface each face the opening, and wherein the first semi-cylindrical surface, the third semi-cylindrical surface, the first housing, and the second housing are disposed flush with one side end surfaces facing the opening.
3. The electronic transformer core structure of claim 1, wherein the first housing comprises a first bottom plate and a first side column, the first side column is disposed around the first center column and connected to a same side of the first bottom plate, the second housing comprises a second bottom plate and a second side column, the second side column is disposed around the second center column and connected to a same side of the second bottom plate, and an end surface of the first side column facing away from the first bottom plate and an end surface of the second side column facing away from the second bottom plate are disposed in an overlapping manner.
4. The magnetic core structure of an electronic transformer according to claim 3, wherein said first side leg and said first center leg are each disposed perpendicular to said first base plate, and said second side leg and said second center leg are each disposed perpendicular to said second base plate.
5. The electronic transformer core structure of claim 3, wherein the first leg is attached to an edge of the first substrate and the second leg is attached to an edge of the second substrate.
6. The magnetic core structure of the electronic transformer according to any one of claims 3 to 5, wherein the first side leg has an inner wall surface forming the receiving cavity, and includes two opposite first inner side walls and a first inner top wall connecting the two first inner side walls, wherein the two first inner side walls are planar and arranged parallel to the first plane, and the first inner top wall is arc-shaped and matched with the first semi-cylindrical surface;
the second side column is provided with an inner wall surface forming the accommodating cavity, and comprises two opposite second inner side walls and a second inner top wall connected with the two second inner side walls, wherein the two second inner side walls are planar and arranged in parallel with the second plane, and the second inner top wall is arc-surface-shaped and matched with the third half-cylindrical surface.
7. The electronic transformer core structure of claim 6, wherein the first bottom plate forms a first inner bottom surface of the receiving cavity and the second bottom plate forms a second inner bottom surface of the receiving cavity.
8. The electronic transformer core structure of claim 7, wherein the first inner bottom surface and the second inner bottom surface are arranged in parallel.
9. The magnetic core structure of the electronic transformer according to claim 3, wherein the first center leg, the first bottom plate and the first side leg are an integral structure;
the second center pillar, the second bottom plate and the second side pillar are of an integral structure.
10. An electronic transformer, comprising a magnetic core structure of an electronic transformer according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121679859.1U CN215578109U (en) | 2021-07-22 | 2021-07-22 | Magnetic core structure of electronic transformer and electronic transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121679859.1U CN215578109U (en) | 2021-07-22 | 2021-07-22 | Magnetic core structure of electronic transformer and electronic transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215578109U true CN215578109U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121679859.1U Active CN215578109U (en) | 2021-07-22 | 2021-07-22 | Magnetic core structure of electronic transformer and electronic transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215578109U (en) |
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2021
- 2021-07-22 CN CN202121679859.1U patent/CN215578109U/en active Active
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Effective date of registration: 20220421 Address after: 336000 No. 2 chunhang Road, Yichun economic and Technological Development Zone, Yichun City, Jiangxi Province (Declaration of commitment) Patentee after: SKYWORTH core electronics (Yichun) Co.,Ltd. Address before: No.108 chunhang Road, Yichun economic and Technological Development Zone, Jiangxi Province Patentee before: SKYWORTH ELECTRONIC DEVICE (YICHUN) Co.,Ltd. |
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