CN109195309B - Industrial power supply circuit board - Google Patents
Industrial power supply circuit board Download PDFInfo
- Publication number
- CN109195309B CN109195309B CN201811047781.4A CN201811047781A CN109195309B CN 109195309 B CN109195309 B CN 109195309B CN 201811047781 A CN201811047781 A CN 201811047781A CN 109195309 B CN109195309 B CN 109195309B
- Authority
- CN
- China
- Prior art keywords
- top plate
- circuit board
- plate
- power supply
- supply circuit
- 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.)
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- 239000003990 capacitor Substances 0.000 claims abstract description 22
- 239000000919 ceramic Substances 0.000 claims abstract description 16
- 239000013078 crystal Substances 0.000 claims abstract description 14
- 239000004568 cement Substances 0.000 claims description 10
- 230000017525 heat dissipation Effects 0.000 claims description 9
- 239000000428 dust Substances 0.000 claims description 7
- 239000004519 grease Substances 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 229910052573 porcelain Inorganic materials 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 description 6
- 230000006378 damage Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000002585 base Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 229910017083 AlN Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
- H05K1/0203—Cooling of mounted components
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses an industrial power supply circuit board, which comprises a shell, a top plate and fixing devices, wherein the fixing devices are fixedly arranged on both sides of the shell, the top of the shell is fixedly provided with a top plate, the top of the top plate is fixedly provided with a control chip, the top of the top plate is fixedly provided with a diode, the diode is positioned at one side of the control chip, the thyristor is fixedly arranged at the top of the top plate and positioned at one side of the diode, the triode is fixedly arranged at the top of the top plate, the triode is positioned at one side of the thyristor, the ceramic chip capacitor is fixedly arranged at the top of the top plate and positioned at one side of the triode, the crystal oscillator is fixedly arranged at the top of the top plate, and the crystal oscillator is positioned on one side of the ceramic chip capacitor, the fine tuning potentiometer is fixedly installed at the top of the top plate and is positioned on one side of the crystal oscillator. The invention has the functions of fixing, radiating and the like.
Description
Technical Field
The invention relates to the technical field of electronic elements, in particular to an industrial power supply circuit board.
Background
The circuit board has the name: ceramic circuit board, alumina ceramic circuit board, aluminium nitride ceramic circuit board, the PCB board, aluminium base board, the high frequency board, thick copper board, the impedance board, PCB, ultra-thin circuit board, printed circuit board etc. the circuit board makes the circuit miniaturation, the visualization, to the batch production of fixed circuit with electrical apparatus overall arrangement with optimizing play an important role, current industrial power supply circuit board, easy displacement after the installation influences normal work, in order to solve above-mentioned problem, so an industrial power supply circuit board is urgently needed to solve current problem.
Disclosure of Invention
The present invention is directed to an industrial power circuit board, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: an industrial power supply circuit board comprises a shell, a top plate and a fixing device, wherein the fixing device is fixedly mounted on two sides of the shell, the top of the shell is fixedly mounted with the top plate, the top of the top plate is fixedly mounted with a control chip, the top of the top plate is fixedly mounted with a diode, the diode is positioned on one side of the control chip, the top of the top plate is fixedly mounted with a thyristor, the thyristor is positioned on one side of the diode, the top of the top plate is fixedly mounted with a triode, the triode is positioned on one side of the thyristor, the top of the top plate is fixedly mounted with a ceramic chip capacitor, the ceramic chip capacitor is positioned on one side of the triode, the top of the top plate is fixedly mounted with a crystal oscillator, the crystal oscillator is positioned on one side of the ceramic chip capacitor, the top of the top plate is fixedly mounted with a trimmer, the trimmer, and the inductor is located one side of fine setting potentiometre, the top fixed mounting of roof has thermistor, and thermistor is located one side of inductor, the both ends of roof are provided with the spout, the inside movable mounting of spout has the slider, fixed mounting has the slide between the slider, the inside fixed mounting of casing has the integrated circuit layer, the bottom fixed mounting of casing has the bottom plate.
Preferably, the surface of the sliding plate is provided with a heat dissipation opening, and the surface of the heat dissipation opening is fixedly provided with a dust screen.
Preferably, one side of the fixing device is fixedly provided with a taking block, and the surface of the taking block is provided with annular threads.
Preferably, a fixed arm is fixedly mounted at the bottom of the fixing device, a positioning hole is formed in the surface of the fixed arm, a sliding hole is formed in the surface of the fixed arm, and the sliding hole is located on one side of the positioning hole.
Preferably, the heat conducting plate is fixedly arranged in the shell and adopts heat conducting silicone grease.
Preferably, a cement resistor is fixedly mounted at the top of the top plate, and a non-alkali heat-resistant porcelain piece is mounted on the surface of the cement resistor.
Preferably, a ventilation plate is fixedly mounted inside the shell, and the ventilation plate is located at the bottom of the heat conduction plate.
Preferably, the top of the top plate is fixedly provided with an electrolytic capacitor, and the electrolytic capacitor is positioned on one side of the triode.
Compared with the prior art, the invention has the beneficial effects that: the industrial power supply circuit board is convenient to fix by arranging the fixing device, can effectively prevent the device from shifting when in work and influencing the work progress, the heat dissipation port can effectively dissipate the heat in the device, prevent parts from being damaged by overheating, thereby prolonging the service life of the device, effectively preventing dust and sundries from entering the device through the dustproof net, thereby improving the neatness of the device, effectively protecting the electronic elements on the top plate and preventing the electronic elements from being damaged by sundries through arranging the sliding plate, the cement resistor can effectively limit the passing of current and prevent the damage of the electronic element caused by overlarge current, through being provided with the piece of taking, the staff of being convenient for takes this device, can effectually prevent that the staff from being injured by the electricity.
Drawings
FIG. 1 is a schematic diagram of the internal structure of the present invention in a front view;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a side view of the internal structure of the present invention;
FIG. 4 is a schematic side view of the present invention;
fig. 5 is a schematic structural diagram of the fixing device of the present invention.
In the figure: 1. a housing; 2. a top plate; 3. cement resistance; 4. a control chip; 5. a thyristor; 6. a fixing device; 601. a fixed arm; 602. positioning holes; 603. a slide hole; 7. a diode; 8. a triode; 9. an electrolytic capacitor; 10. a ceramic chip capacitor; 11. trimming a potentiometer; 12. an inductor; 13. crystal oscillation; 14. a thermistor; 15. a chute; 16. a slide plate; 17. a slider; 18. taking blocks; 19. a heat dissipation port; 20. a dust screen; 21. an integrated circuit layer; 22. a heat conducting plate; 23. a ventilation board; 24. a base plate.
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.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-5, an embodiment of the present invention is shown: an industrial power supply circuit board comprises a shell 1, a top plate 2 and a fixing device 6, wherein the fixing device 6 is fixedly arranged on two sides of the shell 1, a fixing arm 601 in the fixing device 6 is used for fixing the device, a positioning hole 602 is used for installing a fixing bolt, a sliding hole 603 is used for adjusting to a proper position to be fixed, the top plate 2 is fixedly arranged on the top of the shell 1, the top plate 2 is used for installing an electronic element, a control chip 4 is fixedly arranged on the top of the top plate 2, the control chip 4 is used as a part of a main board, a chip group plays a core role on the main board, a diode 7 is fixedly arranged on the top of the top plate 2, the diode 7 is positioned on one side of the control chip 4, among the electronic elements of the diode 7, the device is provided with two electrodes, only current is allowed to flow in a single direction, a plurality of applications use is to apply, the thyristor 5 is positioned at one side of the diode 7, the thyristor 5 can work under the conditions of high voltage and large current, and the working process can be controlled and widely applied to electronic circuits of controllable rectification, alternating current voltage regulation, non-contact electronic switching, inversion, frequency conversion and the like, the top of the top plate 2 is fixedly provided with the triode 8, the triode 8 is positioned at one side of the thyristor 5, the triode 8 is a semiconductor device for controlling current and has the function of amplifying a weak signal into an electric signal with a large amplitude value and is also used as the non-contact switch, the top of the top plate 2 is fixedly provided with the ceramic chip capacitor 10, the ceramic chip capacitor 10 is positioned at one side of the triode 8, the ceramic chip capacitor 10 is a ceramic material used as a medium, the surface of the ceramic is coated with a layer of metal film and then is sintered at high temperature to be used as an electrode to form a capacitor, the crystal oscillator 13 is positioned at one side of the ceramic chip capacitor 10, the top of the top plate 2 is fixedly provided with a fine tuning potentiometer 11, the fine tuning potentiometer 11 is positioned at one side of the crystal oscillator 13, the crystal oscillator 13 is a crystal element which is added with an IC inside a package to form an oscillation circuit and is called a crystal oscillator, the top of the top plate 2 is fixedly provided with an inductor 12, the inductor 12 is positioned at one side of the fine tuning potentiometer 11, the inductor 12 is an element which can convert electric energy into magnetic energy and store the magnetic energy, the top of the top plate 2 is fixedly provided with a thermistor 14, the thermistor 14 is positioned at one side of the inductor 12, the thermistor 14 shows different resistance values at different temperatures, two ends of the top plate 2 are provided with sliding grooves 15, the sliding grooves 15 are used for sliding grooves, sliding blocks 17 are movably arranged inside the sliding grooves 15, the sliding blocks 17 are used for sliding in the sliding, the slide plate 16 is used for protecting electronic components on the top plate 2, the integrated circuit layer 21 is fixedly arranged in the shell 1, the integrated circuit layer 21 is a micro electronic device or a bottom plate 24 is fixedly arranged at the bottom of the component shell 1, and the bottom plate 24 is used for mounting various electronic components.
Further, the surface of the sliding plate 16 is provided with a heat dissipation opening 19, and a dust screen 20 is fixedly mounted on the surface of the heat dissipation opening 19, the heat dissipation opening 19 can effectively dissipate heat in the device, and the dust screen 20 can effectively prevent dust and sundries from entering the device.
Further, one side fixed mounting of fixing device 6 has the piece 18 of taking, and the surface of the piece 18 of taking is provided with the annular thread, and the piece 18 of taking is convenient for the user to take this device.
Further, a fixing arm 601 is fixedly mounted at the bottom of the fixing device 6, a positioning hole 602 is formed in the surface of the fixing arm 601, a sliding hole 603 is formed in the surface of the fixing arm 601, the sliding hole 603 is located on one side of the positioning hole 602, the fixing arm 601 is used for fixing the device through the mutual matching of the above parts, the positioning hole 602 is used for mounting a fixing bolt, and the sliding hole 603 is used for adjusting to a proper position for fixing.
Further, the heat conducting plate 22 is fixedly installed inside the casing 1, and the heat conducting plate 22 is made of heat conducting silicone grease, so that the heat conducting plate 22 can effectively conduct out the heat inside the device.
Further, a cement resistor 3 is fixedly mounted on the top of the top plate 2, an alkali-free heat-resistant porcelain is mounted on the surface of the cement resistor 3, and the cement resistor 3 is a cement-encapsulated resistor.
Further, the inside fixed mounting of casing 1 has ventilation board 23, and ventilation board 23 is located the bottom of heat-conducting plate 22, and ventilation board 23 can effectively increase the inside gas mobility of this device.
Furthermore, an electrolytic capacitor 9 is fixedly mounted on the top of the top plate 2, the electrolytic capacitor 9 is positioned on one side of the triode 8, a metal foil of the electrolytic capacitor 9 is a positive electrode, and an oxide film of metal tightly attached to the positive electrode is a dielectric medium.
The working principle is as follows: before using, check the security of each part of this device earlier, during the use, fix this device through fixing device 6 earlier, the normal work of this device is influenced in the displacement during preventing to use, through mutually supporting of thermovent 19 and heat-conducting plate 22, can effectually radiate the inside heat of this device, be convenient for long-time work of going on, then through cement resistance 3 and thermistor 14 can effectual control this device's electric current size, prevent that the electric current from too high leading to the fact the damage to this device, at last through the cooperation of spout 15 with slider 17, remove slide 16 and protect the electronic component on roof 2, prevent that other objects from causing the injury to this device during the use.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. An industrial power supply circuit board, includes casing (1), roof (2) and fixing device (6), its characterized in that: the ceramic chip capacitor is characterized in that fixing devices (6) are fixedly mounted on two sides of the shell (1), a top plate (2) is fixedly mounted on the top of the shell (1), a control chip (4) is fixedly mounted on the top of the top plate (2), a diode (7) is fixedly mounted on the top of the top plate (2), the diode (7) is located on one side of the control chip (4), a thyristor (5) is fixedly mounted on the top of the top plate (2), the thyristor (5) is located on one side of the diode (7), a triode (8) is fixedly mounted on the top of the top plate (2), the triode (8) is located on one side of the thyristor (5), a ceramic chip capacitor (10) is fixedly mounted on the top of the top plate (2), the ceramic chip capacitor (10) is located on one side of the triode (8), a crystal oscillator (13) is fixedly mounted on the top of the top plate (2), and the crystal oscillator (13), the top of the top plate (2) is fixedly provided with a fine-tuning potentiometer (11), the fine-tuning potentiometer (11) is located on one side of a crystal oscillator (13), the top of the top plate (2) is fixedly provided with an inductor (12), the inductor (12) is located on one side of the fine-tuning potentiometer (11), the top of the top plate (2) is fixedly provided with a thermistor (14), the thermistor (14) is located on one side of the inductor (12), two ends of the top plate (2) are provided with sliding grooves (15), sliding blocks (17) are movably installed inside the sliding grooves (15), sliding plates (16) are fixedly installed between the sliding blocks (17), an integrated circuit layer (21) is fixedly installed inside the shell (1), and the bottom of the shell (1) is fixedly provided with a bottom plate (24);
the surface of the sliding plate (16) is provided with a heat dissipation opening (19), and the surface of the heat dissipation opening (19) is fixedly provided with a dust screen (20).
2. An industrial power supply circuit board according to claim 1, characterized in that: one side of the fixing device (6) is fixedly provided with a taking block (18), and the surface of the taking block (18) is provided with annular threads.
3. An industrial power supply circuit board according to claim 1, characterized in that: the bottom of the fixing device (6) is fixedly provided with a fixing arm (601), a positioning hole (602) is formed in the surface of the fixing arm (601), a sliding hole (603) is formed in the surface of the fixing arm (601), and the sliding hole (603) is located on one side of the positioning hole (602).
4. An industrial power supply circuit board according to claim 1, characterized in that: the heat conduction plate (22) is fixedly arranged in the shell (1), and the heat conduction plate (22) is made of heat conduction silicone grease.
5. An industrial power supply circuit board according to claim 1, characterized in that: the top of roof (2) fixed mounting has cement resistance (3), and the surface mounting of cement resistance (3) has the heat-resisting porcelain spare of no basicity.
6. An industrial power supply circuit board according to claim 1, characterized in that: the inside fixed mounting of casing (1) has ventilating board (23), and ventilating board (23) are located the bottom of heat-conducting plate (22).
7. An industrial power supply circuit board according to claim 1, characterized in that: the top of roof (2) fixed mounting has electrolytic capacitor (9), and electrolytic capacitor (9) are located one side of triode (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811047781.4A CN109195309B (en) | 2018-09-10 | 2018-09-10 | Industrial power supply circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811047781.4A CN109195309B (en) | 2018-09-10 | 2018-09-10 | Industrial power supply circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109195309A CN109195309A (en) | 2019-01-11 |
| CN109195309B true CN109195309B (en) | 2021-01-26 |
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ID=64915402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811047781.4A Active CN109195309B (en) | 2018-09-10 | 2018-09-10 | Industrial power supply circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109195309B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111580785B (en) * | 2019-02-18 | 2024-01-23 | 广东科信电子有限公司 | Digital circuit structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101780436A (en) * | 2009-01-20 | 2010-07-21 | 金华大维电子科技有限公司 | Digital signal processor (DSP) embedded controller for electric dust-removing three-phase high-voltage direct-current power supply |
| CN202121486U (en) * | 2011-05-27 | 2012-01-18 | 王洪军 | Supersonic generator power box |
| CN202406382U (en) * | 2012-01-09 | 2012-08-29 | 苏州艾迪亚电子科技有限公司 | Circuit board with protection and high-efficiency heat dissipation functions |
| CN103699025A (en) * | 2013-12-19 | 2014-04-02 | 集美大学 | Self-assembling modular household intelligent control panel and implementation method thereof |
| CN203911733U (en) * | 2014-06-24 | 2014-10-29 | 乐清市浙南机电有限公司 | Switch power supply |
| CN206819285U (en) * | 2017-07-03 | 2017-12-29 | 北华航天工业学院 | An insulated high heat dissipation computer power supply device |
| CN107591998A (en) * | 2013-11-26 | 2018-01-16 | 台达电子企业管理（上海）有限公司 | Power supply change-over device and its Power convert board component |
| CN108400700A (en) * | 2018-04-27 | 2018-08-14 | 长兴创盈光电有限公司 | A kind of electrocution-proof switch power supply |
-
2018
- 2018-09-10 CN CN201811047781.4A patent/CN109195309B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101780436A (en) * | 2009-01-20 | 2010-07-21 | 金华大维电子科技有限公司 | Digital signal processor (DSP) embedded controller for electric dust-removing three-phase high-voltage direct-current power supply |
| CN202121486U (en) * | 2011-05-27 | 2012-01-18 | 王洪军 | Supersonic generator power box |
| CN202406382U (en) * | 2012-01-09 | 2012-08-29 | 苏州艾迪亚电子科技有限公司 | Circuit board with protection and high-efficiency heat dissipation functions |
| CN107591998A (en) * | 2013-11-26 | 2018-01-16 | 台达电子企业管理（上海）有限公司 | Power supply change-over device and its Power convert board component |
| CN103699025A (en) * | 2013-12-19 | 2014-04-02 | 集美大学 | Self-assembling modular household intelligent control panel and implementation method thereof |
| CN203911733U (en) * | 2014-06-24 | 2014-10-29 | 乐清市浙南机电有限公司 | Switch power supply |
| CN206819285U (en) * | 2017-07-03 | 2017-12-29 | 北华航天工业学院 | An insulated high heat dissipation computer power supply device |
| CN108400700A (en) * | 2018-04-27 | 2018-08-14 | 长兴创盈光电有限公司 | A kind of electrocution-proof switch power supply |
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| Publication number | Publication date |
|---|---|
| CN109195309A (en) | 2019-01-11 |
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Effective date of registration: 20201216 Address after: 413000 Changchun Industrial Park, Ziyang District, Yiyang, Hunan Applicant after: YIYANG MINGZHENGHONG ELECTRONICS Co.,Ltd. Address before: No. 87, Pacific Industrial Zone, Xintang Town, Zengcheng District, Guangzhou City, Guangdong Province Applicant before: GAOYA ELECTRIC Co.,Ltd. OF GUANGZHOU |
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