CN203785439U - High frequency induction smelter for flammable metal - Google Patents
High frequency induction smelter for flammable metal Download PDFInfo
- Publication number
- CN203785439U CN203785439U CN201420189401.1U CN201420189401U CN203785439U CN 203785439 U CN203785439 U CN 203785439U CN 201420189401 U CN201420189401 U CN 201420189401U CN 203785439 U CN203785439 U CN 203785439U
- Authority
- CN
- China
- Prior art keywords
- crucible
- frequency induction
- opening
- fixture
- combustible metal
- 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 - Lifetime
Links
- 230000006698 induction Effects 0.000 title claims abstract description 59
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 44
- 239000002184 metal Substances 0.000 title claims abstract description 44
- 239000011261 inert gas Substances 0.000 claims abstract description 23
- 239000007789 gas Substances 0.000 claims abstract description 8
- 238000003723 Smelting Methods 0.000 claims description 25
- 238000009413 insulation Methods 0.000 claims description 22
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 5
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 4
- 208000012287 Prolapse Diseases 0.000 claims description 4
- 229910018503 SF6 Inorganic materials 0.000 claims description 4
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims description 4
- 229960000909 sulfur hexafluoride Drugs 0.000 claims description 4
- 238000010792 warming Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 229910052734 helium Inorganic materials 0.000 description 4
- 239000001307 helium Substances 0.000 description 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 4
- 229910000733 Li alloy Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000001989 lithium alloy Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- GCICAPWZNUIIDV-UHFFFAOYSA-N lithium magnesium Chemical compound [Li].[Mg] GCICAPWZNUIIDV-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
The utility model relates to a high frequency induction smelter for flammable metal. The high frequency induction smelter for the flammable metal comprises a furnace shell, a fixing device, a crucible, an inert gas input device, an induction coil and a high frequency induction power source, wherein a first opening is formed in the upper side of the furnace shell; the fixing device is installed inside the furnace shell; a second opening is formed in the upper end of the fixing device; the second opening corresponds to the first opening in position; the crucible is used for containing the flammable metal; the crucible comprises a third opening formed in the upper end of the crucible; the crucible is installed inside the fixing device through the second opening in an upwards disengagement mode; the inert gas input device comprises an input pipeline; the input pipeline extends into the crucible from the third opening to provide inert gas for the interior of the crucible to separate the flammable from the atmosphere; the induction coil is arranged on the outer side of the fixing device in a surrounding mode; the high frequency induction power source is electrically connected with the induction coil to provide high frequency current. The inert gas input device inputs the inert gas into the crucible, the flammable metal and the atmosphere are separated, it is avoided that the flammable gas makes contact with oxygen to burn or explode, the safety coefficient is improved, and the normal production is ensured.
Description
Technical field
The utility model relates to high-frequency induction smelting furnace, more particularly, relates to a kind of combustible metal high-frequency induction smelting furnace.
Background technology
In correlation technique, the heating of metal product is normally adopted to electric furnace or combustion furnace.Inefficiency while adopting conventional electric furnace or combustion furnace to the heat fused of the combustible metal such as magnesium alloy, firing rate are slow, and high temperature can make combustible metal that the even security incident such as blast of burning occurs, thereby has affected normal production.
Utility model content
The technical problems to be solved in the utility model is, a kind of combustible metal high-frequency induction smelting furnace is provided.
The utility model solves the technical scheme that its technical problem adopts: construct a kind of combustible metal high-frequency induction smelting furnace, comprise furnace shell, described furnace shell upside is provided with the first opening, and described combustible metal high-frequency induction smelting furnace also comprises:
Be arranged on the fixture in described furnace shell, the upper end of described fixture is formed with the second opening, and described the second opening is corresponding with the position of described the first opening;
For holding the crucible of combustible metal, described crucible comprises the 3rd opening of being located at upper end, and described crucible can be installed in described fixture by described the second opening prolapse upwards;
Inert gas input unit, described inert gas input unit comprises input channel, described input channel is extend in described crucible to provide inert gas by described combustible metal and isolated from atmosphere in described crucible by described the 3rd opening;
Around the induction coil that is arranged on described fixture outside;
And be electrically connected with described induction coil the high frequency induction power supply that high frequency electric is provided.
Preferably, described crucible is provided with the bell that covers on described the 3rd opening and seal described crucible the 3rd opening;
The two opposite sides of described bell are respectively equipped with charge door and material taking mouth;
Described bell is provided with the reinforced cover plate being arranged on slippingly on described charge door to open or to cover described charge door.
Preferably, described inert gas input unit also comprises the inertia source of the gas being connected with described input channel;
Described input channel vertically stretches into described crucible internal upper part by the middle part of described bell, forms inert gas cover on the top of described crucible.
Preferably, described inertia source of the gas is the closed container that nitrogen or sulfur hexafluoride are housed, described crucible be for holding, the container of Melting Magnesium alloy.
Preferably, described furnace shell comprises grate and is arranged on described grate outside plate around, and described outside plate surrounds for described fixture and is arranged at air-cooled space wherein.
Preferably, described outside plate is provided with air cooling system, and described air cooling system comprises at least one ventilating fan, and the air in the described air-cooled space of described ventilating fan discharge is to lower the temperature to described induction coil.
Preferably, described grate is provided with the stool that is supported on described fixture lower end and supports described crucible;
Described outside plate is the peripheral steel plate that is located at described fixture, shields with the magnetic field that described induction coil is produced;
Described furnace shell also comprises the stove seat that is arranged on described grate bottom.
Preferably, described combustible metal high-frequency induction smelting furnace also comprises heat-insulation layer, and described heat-insulation layer is tubular, is set in outside described fixture, and described crucible is installed in described fixture by described the second opening; Between the downside of described crucible and described fixture, be also provided with heat-preservation cotton or warming plate.
Preferably, described fixture comprises:
Be located at the upper retainer plate of upper end, the fixed support of being located at the lower retainer plate of lower end and fixed circle and lower retainer plate being connected;
Described lower retainer plate is placed on described stool;
Described induction coil is wrapped in the outside of described fixed support or described heat-insulation layer from top to bottom.
Preferably, described combustible metal high-frequency induction smelting furnace also comprises heat-insulation layer, and described heat-insulation layer is filled between the lateral surface and described fixture of described crucible, or described heat-insulation layer is coated on the lateral surface of described fixture.
Implement combustible metal high-frequency induction smelting furnace of the present utility model, there is following beneficial effect: the utility model is significantly improved energy-saving effect, and in crucible, input inert gas by input channel by inert gas input unit, make combustible metal and extraneous atmosphere form isolation, avoid inflammable gas to touch oxygen and burning or blast occur, promote safety coefficient, ensured normally carrying out of production.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the side schematic view of the combustible metal high-frequency induction smelting furnace in the utility model embodiment;
Fig. 2 is the A-A generalized section of Fig. 1;
Fig. 3 is the enlarged diagram of the partial view B in Fig. 2.
Detailed description of the invention
Understand for technical characterictic of the present utility model, object and effect being had more clearly, now contrast accompanying drawing and describe detailed description of the invention of the present utility model in detail.
As shown in Figures 1 and 2, the combustible metal high-frequency induction smelting furnace in preferred embodiment of the utility model comprise furnace shell 10, be arranged on fixture 20 in furnace shell 10, can prolapse upwards be installed to crucible 30 in fixture 20, to the inert gas input unit 40 of the interior input inert gas of crucible 30, around being arranged on the induction coil 50 in fixture 20 outsides and being electrically connected with induction coil 50 high frequency induction power supply (not shown) that high frequency electric is provided.Crucible 30 for for holding, the container of melting combustible metal (such as magnesium alloy, lithium alloy, magnesium lithium alloy, titanium alloy etc.), high frequency induction power supply is independently arranged on outside furnace shell 10, and be electrically connected and provide high frequency electric, induction coil 50 to produce magnetic field the combustible metal heat fused in crucible 30 is carried out to die casting or test again with induction coil 50.
In certain embodiments, furnace shell 10 comprises grate 11, is arranged on the outside plate 12 of grate 11 peripheries and is arranged on the stove seat 13 of grate 11 bottoms.Stove seat 13 contacts with ground, so that grate 11 is supported.Outside plate 12 surrounds for fixture 20 and is arranged at air-cooled space wherein.The downside of grate 11 is provided with the stool 14 that is supported on fixture 20 lower ends, in other embodiments, also stool 14 can be cancelled, and allows grate 11 support the lower end of fixture 20.
Preferably, outside plate 12, for being located at the steel plate of fixture 20 peripheries, shields with the magnetic field that induction coil 50 is produced.In other embodiments, outside plate 12 also can adopt the not high temperature resistant nonmetal or metal material of magnetic conduction such as epoxy resin board, micarex, high-purity aluminium sheet, or adopts irony outside plate 12 then to use high-purity aluminium sheet or copper coin to be arranged on outside plate 12 inner sides as shielding material.
In certain embodiments, outside plate 12 is provided with air cooling system 15, and preferably, air cooling system 15 comprises the ventilating fan that is arranged on outside plate 12 sides, and ventilating fan is discharged air in air-cooled space so that induction coil 50 is lowered the temperature, and promotes the service life of induction coil 50.The quantity of ventilating fan does not limit, can be according to the temperature setting of induction coil 40.In other embodiments, air cooling system 15 also can comprise air exhauster etc. so that circulate in the air in air-cooled space and the external world.
Further, be provided with the first opening 16 at furnace shell 10 upsides, it is corresponding with the position of the first opening 16 that the upper end of fixture 20 is formed with the second opening 21, the second openings 21.Crucible 30 comprises the 3rd opening 31 of being located at upper end, and what crucible 30 can prolapse upwards by the second opening 21 is installed in fixture 20, and stool 14 supports crucible 30.Because crucible 30 is easily-consumed products, this structure make crucible 30 detection, change simple and convenient, promote operating efficiency.
As shown in Figures 2 and 3, this combustible metal high-frequency induction smelting furnace also comprises heat-insulation layer 60, the insulation materials such as heat-insulation layer 60 is heat-preservation cotton, heat-insulation layer 60 is coated on the lateral surface of fixture 20, with the combustible metal insulation in crucible 30 and crucible 30, reduce the waste of crucible 30 interior heats, simultaneously, induction coil 50 is looped around the outside of heat-insulation layer 60 from top to bottom, can allow induction coil 50 avoid hyperthermia radiation.Certainly, heat-insulation layer 60 also can be filled between the lateral surface and fixture 20 of crucible 30.
Preferably, in certain embodiments, heat-insulation layer 60 is tubular, be set in outside fixture 20, crucible 30 is installed in fixture 20 by the second opening 21, between the downside of crucible 30 and stool 14, heat-preservation cotton or warming plate 61 also can be set, and the bottom of crucible 30 is incubated.Stool 14 supports fixture 20 and crucible 30 in the lower end of heat-preservation cotton or warming plate 61.
Further, fixture 20 comprises is located at the upper retainer plate 22 of upper end, the fixed support 24 of being located at the lower retainer plate 23 of lower end and upper retainer plate 22 being connected with lower retainer plate 23, lower retainer plate 23 is placed on described stool 14, heat-insulation layer 60 is set in fixed support 24 outsides, and induction coil 50 is wrapped in the outside of heat-insulation layer 60 from top to bottom.In the time that heat-insulation layer 60 is located between the outside of crucible 30 and fixture 20, also induction coil 50 can be wrapped in to the outside of fixed support 24.In the present embodiment, fixed support 24 is many many support bars that are connected between retainer plate 22 and lower retainer plate 23, the support bar setting of arranging along the border of upper retainer plate 22.Understandably, in other embodiments, fixed support 24 also can be mesh-supported structure.
Again as shown in Figure 2, further, crucible 30 is provided with and covers on the 3rd opening 31 and the bell 32 of the 3rd opening 31 of sealed crucible 30, the two opposite sides of bell 32 are respectively equipped with charge door 321 and material taking mouth 322, put into combustible metal piece to be heated from charge door 321, when after combustible metal fusing, take out and carry out die cast from material taking mouth 322.On bell 32, be also provided with the reinforced cover plate 323 covering on charge door 321, reinforced cover plate 323 is arranged on bell 32 slippingly to open or to cover charge door 321.
In certain embodiments, the inertia source of the gas (not shown) that inert gas input unit 40 comprises input channel 41 and is connected with input channel 41.Input channel 41 vertically extend into crucible 30 internal upper parts by the middle part of bell 32; inertia source of the gas is to be arranged on nitrogen being housed or sulfur hexafluoride being housed or helium being housed or helium being housed and the closed container of the mist of nitrogen of furnace shell 10 outsides; in crucible 30, provide the inert gases such as the mist of nitrogen, sulfur hexafluoride, helium or helium and nitrogen through input channel 41; form inert gas cover at crucible 30 internal upper parts; by combustible metal and isolated from atmosphere, prevent that the oxygen that the combustible metal in crucible 30 touches in atmosphere from burning or blast occurring.Understandably, in other embodiments, input channel 41 can be arranged to annular along the inwall of crucible 30, and on input channel 41, evenly interval arranges one or more outlets, to ensure being uniformly distributed of inert gas.
Understandably, above-mentioned each technical characterictic can be combined use and unrestricted.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a combustible metal high-frequency induction smelting furnace, comprises furnace shell (10), and described furnace shell (10) upside is provided with the first opening (16), it is characterized in that, described combustible metal high-frequency induction smelting furnace also comprises:
Be arranged on the fixture (20) in described furnace shell (10), the upper end of described fixture (20) is formed with the second opening (21), and described the second opening (21) is corresponding with the position of described the first opening (16);
For holding the crucible (30) of combustible metal, described crucible (30) comprises the 3rd opening (31) of being located at upper end, and described crucible (30) can be installed in described fixture (20) by described the second opening (21) prolapse upwards;
Inert gas input unit (40), described inert gas input unit (40) comprises input channel (41), and described input channel (41) is extend in described crucible (30) to provide inert gas by described combustible metal and isolated from atmosphere in described crucible (30) by described the 3rd opening (31);
Around the induction coil (50) that is arranged on described fixture (20) outside;
And be electrically connected with described induction coil (50) high frequency induction power supply that high frequency electric is provided.
2. combustible metal high-frequency induction smelting furnace according to claim 1, is characterized in that,
Described crucible (30) is provided with and covers the bell (32) of going up and seal described crucible (30) the 3rd opening (31) at described the 3rd opening (31);
The two opposite sides of described bell (32) are respectively equipped with charge door (321) and material taking mouth (322);
Described bell (32) is provided with the reinforced cover plate (323) being arranged on slippingly on described charge door (321) to open or to cover described charge door (321).
3. combustible metal high-frequency induction smelting furnace according to claim 2, is characterized in that, described inert gas input unit (40) also comprises the inertia source of the gas being connected with described input channel (41);
Described input channel (41) vertically stretches into described crucible (30) internal upper part by the middle part of described bell (32), forms inert gas cover on the top of described crucible (30).
4. combustible metal high-frequency induction smelting furnace according to claim 3, is characterized in that, described inertia source of the gas is the closed container that nitrogen or sulfur hexafluoride are housed, described crucible (30) for for holding, the container of Melting Magnesium alloy.
5. combustible metal high-frequency induction smelting furnace according to claim 1, it is characterized in that, described furnace shell (10) comprises grate (11) and is arranged on described grate (11) outside plate (12) around, and described outside plate (12) surrounds for described fixture (20) and is arranged at air-cooled space wherein.
6. combustible metal high-frequency induction smelting furnace according to claim 5, it is characterized in that, described outside plate (12) is provided with air cooling system (15), described air cooling system (15) comprises at least one ventilating fan, and the air in the described air-cooled space of described ventilating fan discharge is to lower the temperature to described induction coil (50).
7. combustible metal high-frequency induction smelting furnace according to claim 5, is characterized in that, described grate (11) is provided with the stool (14) that is supported on described fixture (20) lower end and supports described crucible (30);
Described outside plate (12), for being located at the peripheral steel plate of described fixture (20), shields with the magnetic field that described induction coil (50) is produced;
Described furnace shell (10) also comprises the stove seat (13) that is arranged on described grate (11) bottom.
8. combustible metal high-frequency induction smelting furnace according to claim 7, it is characterized in that, described combustible metal high-frequency induction smelting furnace also comprises heat-insulation layer (60), described heat-insulation layer (60) is tubular, be set in outside described fixture (20), described crucible (30) is installed in described fixture (20) by described the second opening (21); Between the downside of described crucible (30) and described fixture (20), be also provided with heat-preservation cotton or warming plate (61).
9. combustible metal high-frequency induction smelting furnace according to claim 8, is characterized in that, described fixture (20) comprising:
Be located at the upper retainer plate (22) of upper end, the fixed support (24) of being located at the lower retainer plate (23) of lower end and fixed circle (22) and lower retainer plate (23) being connected;
Described lower retainer plate (23) is placed on described stool (14);
Described induction coil (50) is wrapped in the outside of described fixed support (24) or described heat-insulation layer (60) from top to bottom.
10. combustible metal high-frequency induction smelting furnace according to claim 1, it is characterized in that, described combustible metal high-frequency induction smelting furnace also comprises heat-insulation layer (60), described heat-insulation layer (60) is filled between the lateral surface and described fixture (20) of described crucible (30), or described heat-insulation layer (60) is coated on the lateral surface of described fixture (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420189401.1U CN203785439U (en) | 2014-04-17 | 2014-04-17 | High frequency induction smelter for flammable metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420189401.1U CN203785439U (en) | 2014-04-17 | 2014-04-17 | High frequency induction smelter for flammable metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203785439U true CN203785439U (en) | 2014-08-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420189401.1U Expired - Lifetime CN203785439U (en) | 2014-04-17 | 2014-04-17 | High frequency induction smelter for flammable metal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203785439U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105698530A (en) * | 2016-04-22 | 2016-06-22 | 佛山市高捷工业炉有限公司 | High-frequency electromagnetic inductive heating furnace |
| CN107621166A (en) * | 2017-09-08 | 2018-01-23 | 深圳粤通新能源环保技术有限公司 | A kind of variable-frequency electromagnetic energy non-ferrous metal casting furnace |
| CN108941590A (en) * | 2018-08-14 | 2018-12-07 | 宁波中物力拓超微材料有限公司 | Titanium alloy smelting powder by atomization equipment and preparation process |
-
2014
- 2014-04-17 CN CN201420189401.1U patent/CN203785439U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105698530A (en) * | 2016-04-22 | 2016-06-22 | 佛山市高捷工业炉有限公司 | High-frequency electromagnetic inductive heating furnace |
| CN107621166A (en) * | 2017-09-08 | 2018-01-23 | 深圳粤通新能源环保技术有限公司 | A kind of variable-frequency electromagnetic energy non-ferrous metal casting furnace |
| CN108941590A (en) * | 2018-08-14 | 2018-12-07 | 宁波中物力拓超微材料有限公司 | Titanium alloy smelting powder by atomization equipment and preparation process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN ZHENENG ELECTRONICS TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: FU BAOHUA Effective date: 20141115 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141115 Address after: 3 building A8, building 518000, Shiyan Beida Founder science park, Shiyan City, Guangdong, Baoan District, Shenzhen Patentee after: SHENZHEN ZENEN ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 3, building 518000, building A8, Peking University Founder science park, Shenzhen, Baoan District, Guangdong Patentee before: Fu Baohua |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140820 |