CN204756487U - Lamp bulb - Google Patents
Lamp bulb Download PDFInfo
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- CN204756487U CN204756487U CN201520224158.7U CN201520224158U CN204756487U CN 204756487 U CN204756487 U CN 204756487U CN 201520224158 U CN201520224158 U CN 201520224158U CN 204756487 U CN204756487 U CN 204756487U
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Abstract
The utility model discloses a lamp bulb, wherein: lamp bulb's one end is the lamp shade, and the other end is the lamp holder, follows the direction of lamp shade to lamp holder, runs through lamp bulb's axis be that lamp shade, lamp body and lamp hold in the palm in proper order, the lamp body is inside including 2 at least LED lamp pearls to an and reflector, the reflector be used for at least with some of light that 2 at least LED lamp pearls sent reflects the lamp shade and via the lamp shade throws away. Based on the fact, the utility model discloses can solve glare problem or spotlight problem in the LED lamp bulb illumination. (Pbpnum='1' /)
Description
Technical field
The utility model relates to lighting field, more specifically, relates to a kind of bulb.
Background technology
In recent years, the development of LED illumination presented scene in full swing.The same with other light source, the light radiation of LED also can work the mischief to human body in theory.Injury mainly occurs in eyes and the skin of people, as the near ultraviolet harm of the photochemistry harm of skin and eyes, eyes, the harm of retina blue light photochemistry, the harm of retina aphacia photochemistry, the harm of retina heat and skin heat harm etc., and more to hold vulnerable among both be eyes.In addition, LED also can cause dazzle to endanger.Dazzle is exactly because the distribution of brightness or scope are not suitable in the visual field, or in space or also exist extreme brightness contrast the time, so that cause uncomfortable and reduce the visual condition of object visibility, dazzle is one of most important factor evaluating lighting quality.
Cause commonly dazzle in the light radiation of light pollution.Dazzle refers to have brightness scope to be not suitable in the visual field, in space or also exist the contrast of extreme brightness the time, so that cause visual phenomenon that is uncomfortable or reduction visibility, the light pollution of glass curtain wall is exactly cause dazzle excessively by force due to its light such as reflected sunlight, light.Dazzle makes the visual impairment of people and fast fatiguing, and the dazzle in daily life is polluted and had a lot, and the dazzle of automobile headlamp as oncoming in night can make to be subject to the driver of light stimulus and pedestrian's control reduces, and is easy to cause danger.
The shortcoming that LED is the most fatal is exactly the characteristic of its spot light.The hot spot that LED light source is formed can hot spot be produced when LED is luminous, cannot look at straight with eyes, if around the LED light source living in high brightness, can affect the judgment of vision instantaneously always.What can produce eyes in a short time does not accommodate fatigue, and Long-Time Service more can produce permanent injury.
Except glare problem, on the other hand, there is again this product of spotlight in reality, namely in prior art, also there is the demand of optically focused.
Prior art usually adopts and allows LED lamp bead direct irradiation in LED light source to the technical scheme of user, causes great glare problem like this.In contrast to this, by above-mentioned the technical solution of the utility model, the light that LED lamp bead can be made to send reflexes to lampshade via reflection shield and projects to field of employment, thus contributes to solving dazzle or optically focused problem.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of bulb, it is characterized in that:
One end of described bulb is lampshade, and the other end is lamp holder, and along lampshade to the direction of lamp holder, what run through the axis of described bulb is lampshade, lamp body successively, and lamp holder;
Described lamp body inside comprises at least 2 LED lamp bead, and a reflection shield;
Described reflection shield at least reflexes to described lampshade for a part for the light described at least 2 LED lamp bead sent and projects away via described lampshade.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment; Wherein A represents E27 lamp holder, the holder of B indication lamp, C indication circuit plate, and D represents sensor circuit plate, and E represents lamp body, and F represents surface-mounted lamp band, and G represents reflection shield, and H represents lampshade;
Fig. 2 is the generalized section of the utility model embodiment; Wherein 1 represents air channel, and 2 represent that hot-air goes out, and 3 represent that cold air enters;
Fig. 3 is the sectional view of the radiator in an embodiment of the present utility model;
Fig. 4 is the top view of the radiator in an embodiment of the present utility model.
Detailed description of the invention
In one embodiment, the utility model discloses a kind of bulb, one end of described bulb is lampshade, and the other end is lamp holder, and along lampshade to the direction of lamp holder, what run through the axis of described bulb is lampshade, lamp body successively, and lamp holder;
Described lamp body inside comprises at least 2 LED lamp bead, and a reflection shield;
Described reflection shield at least reflexes to described lampshade for a part for the light described at least 2 LED lamp bead sent and projects away via described lampshade.
For above-described embodiment, the light that its LED lamp bead sends does not shine directly into lampshade and is irradiated to environment for use further, but a part for the light at least allowing LED lamp bead send is irradiated to the reflection shield of lamp body inside, then this part light is reflexed to lampshade and projects away via lampshade by reflection shield.Certainly, this just means that the light being reflected to lampshade both may be a part for the light that LED lamp bead sends, also may be whole.Although in theory, if the design be optimized makes LED lamp bead and reflection shield and lampshade reach a perfectly coupling, be so to realize all reflexing to lampshade via reflector and being gone out by the projection of 100% of light that LED lamp bead sends.But in reality, because light has decay in the process propagated, and LED lamp bead and reflection shield and lampshade are difficult to reach perfect coupling, so the light causing LED lamp bead to send can not by 100% project away via reflection shield and lampshade.
See Fig. 1, the present embodiment and usual way of the prior art unlike: the light direct irradiation that the present embodiment not makes LED lamp bead send is gone out or is directly shone out through lampshade, be on the contrary novelty reflection shield is set in lamp body so that a part of light sent to major general's LED lamp bead reflexes to lampshade and projects away via lampshade.
If the light of all LED lamp bead projects reflection shield back reflection to the geometric center place away from lampshade, i.e. region outside the geometric center of lampshade, so by such scheme, the present embodiment problem solving LED dazzle to a certain degree.If the region outside the geometric center reflexing to lampshade, so disperse (or diffusion), evenly, then be more conducive to solving glare problem.
The utility model, based on above-described embodiment, also can solve the problem of optically focused.Can utilize equally reflection shield potential realize optically focused, as long as after making the light of all LED lamp bead project reflection shield, major part is reflected to the geometric center place of lampshade.This depends on the position relationship of LED lamp bead and reflection shield, light path, even can be strengthened the function of optically focused by the lens setting up optically focused near reflection shield and LED lamp bead and lampshade.
More excellent, in another embodiment:
Described lamp body inside is hollow structure;
In the side of lamp body near lampshade, a light bar is installed on the inwall of described lamp body;
Described at least 2 LED lamp bead, be then installed on described light bar.
For this embodiment, it clearly defines the mounting means of LED lamp bead.
More excellent, in another embodiment:
Described reflection shield is axisymmetric hollow surface geometry body, the section profile curve of described surface geometry body is hyperbola, and described surface geometry body comprises total two openings be positioned near lampshade and close lamp holder, the cross section of described two openings is the circular cross-section of the axis perpendicular to described bulb, and the area of the described open circles tee section of close lampshade is less than the area of the described open circles tee section near lamp holder, wherein: the axis of described reflection shield and the dead in line of described bulb.
Obviously, for this embodiment, it is intended to the structure and the mounting means thereof that provide a kind of concrete reflection shield.
More excellent, in another embodiment:
Described lamp body outside is heat spreader structures, is beneficial to heat radiation during bulb work.
For this embodiment, which provide additional radiating subassembly, using radiator as a part for lamp body.Preferably, heat spreader structures can, in the full encirclement structure around light source, can, when light source power is less in the semi-surrounding structure around light source, can be also even discontinuous semi-surrounding structure.Easy understand, when similar size, each duct dimension are close, the radiating effect of full encirclement structural rate semi-surrounding structure is better.Although light source is aforementioned light bar in the utility model, but heat spreader structures of the present utility model obviously may be used for other bulb of the prior art.
More excellent, see Fig. 2, in another embodiment:
Described heat spreader structures comprises multiple air channel, and described multiple air channel includes air inlet and air outlet, and described air inlet is positioned near described lampshade place, and described air outlet is positioned near described lamp hold.
Easy understand, this embodiment offers a kind of have multiple duct, novel, for the heat spreader structures of bulb.For described heat spreader structures, composition graphs 1 and Fig. 2, near air outlet, described heat spreader structures can assemble with lamp holder, and produces annexation with lamp holder.
1 and 2 references by reference to the accompanying drawings, above-described embodiment for be the situation that general light projects ground downwards, the luminous site of bulb is arranged on radiator air inlet so that when producing heat, and heat, along with the rising of neighbouring hot-air, is taken out of from air outlet by heat.Wherein, air outlet is identical near the distance of axis with air inlet, or air outlet from axis more close to.Air outlet from axis more close to time, effectively can promote that hot-air is taken out of, entering of cold air, be similar to throat and be generally less than chimney bottom size thus be conducive to exhausting.Further, for the utility model, whether air outlet cross-sectional area is less than air inlet cross-sectional area is not to meet, because meet the basic demand of heat radiation in multiple air channel under, air outlet area of section also can equal air inlet area of section, only not as above-mentioned more excellent mode.
Suppose that the light of bulb upwards projects, and lamp holder (such as, E27 lamp holder) downwards, so can consider the air outlet of the radiator in above-described embodiment and the out of position of air inlet, radiator by above-described embodiment is put upside down, make air outlet all the time relative to air inlet in more top spatially.Still make the position of air intake be more than or equal to the position of air-out apart from the distance of described axis, thus be conducive to the rising of hot-air and taking out of of heat, and the entering of ambient cold air.Further, if now application scenario allows, also can suitably on move radiator, make air outlet be in more top spatially further.
Suppose that bulb is to be parallel to ground, mode perpendicular to metope is arranged on wall, now bulb axis is parallel to ground, so above-described embodiment suitably changes, best mode is: the heat sink part below bulb axis, still as described in Fig. 1 and above-described embodiment, be greater than the distance of geometric center to the axis of described bulb in its air outlet cross section to the distance of the axis of described bulb for the geometric center in the air inlet cross section in air channel---now, relative to air inlet, air outlet is positioned at the more top in space; And heat sink part more than bulb axis, then act in a diametrically opposite way, the geometric center in the air inlet cross section in air channel is less than the distance of geometric center to the axis of described bulb in its air outlet cross section to the distance of the axis of described bulb---namely, now, relative to air inlet, air outlet is still positioned at the more top in space.
More excellent, in another embodiment:
Described light bar is the shaped hollow round table light bar of the equal open-ended of an end to end upper bottom surface, the center line of described shaped hollow round table light bar and the dead in line of described bulb;
Described round table-like light bar back-off is in the inwall of described lamp body;
Described at least 2 LED lamp bead are positioned in a lamp pearl circular cross-section, described lamp pearl circular cross-section is a cross section of the upper bottom surface being parallel to described round table-like light bar, and described lamp pearl circular cross-section be described round table-like light bar upper bottom surface between a circular cross-section;
Along lampshade to the direction of lamp holder, for described lamp body, run through the open circles tee section having the close lamp holder of the bottom surface of the open circles tee section of the close lampshade of described reflection shield, described round table-like light bar, described lamp pearl circular cross-section, described reflection shield according to this of the axis of described bulb, and the upper bottom surface of described shaped hollow round table light bar.
For this embodiment, it is intended to the design feature providing a kind of concrete light bar, reflection shield, relates to the installation site of itself and lampshade.From this embodiment, the principle of installation relates to the center line of the multiple novelty element of this embodiment, whether axis overlaps and mutually between position relationship.With regard to the final stage content of this embodiment, the front and back position relation of the open circles tee section of reflection shield, with reference to figure 1, just easier to understand, after each element assembling, this embodiment shows that the opening of the close lamp holder of reflection shield contacts with the wall of round table-like light bar instead of must overlap with the upper bottom surface of light bar.Such design makes reflection shield meeting under its function prerequisite as far as possible, saves material.As for the upper bottom surface of round platform, according to geometric knowledge, its upper bottom surface is less than the size of bottom surface.Composition graphs 1, that is, in this embodiment, light can be irradiated to the outer wall back reflection of reflection shield to all the other regions away from lampshade geometric center, and this embodiment is the embodiment solving glare problem.
More excellent, in another embodiment:
Described light bar is the shaped hollow round table light bar of the equal open-ended of an end to end upper bottom surface, the center line of described shaped hollow round table light bar and the dead in line of described bulb;
Described round table-like light bar back-off is in the inwall of described lamp body;
Described at least 2 LED lamp bead are positioned in a lamp pearl circular cross-section, described lamp pearl circular cross-section is a cross section of the upper bottom surface being parallel to described round table-like light bar, and described lamp pearl circular cross-section be described round table-like light bar upper bottom surface between a circular cross-section;
Along lampshade to the direction of lamp holder, for described lamp body, what run through the axis of described bulb has the bottom surface of the open circles tee section of the close lampshade of described reflection shield, described round table-like light bar, described lamp pearl circular cross-section according to this, and the upper bottom surface of the described shaped hollow round table light bar overlapped with the open circles tee section of the close lamp holder of described reflection shield.
Compared with previous embodiment, this embodiment gives another kind of installation site relation, obviously the opening of reflection shield overlaps with the upper bottom surface of round table-like light bar herein.These two kinds of different modes can guarantee basic function of the present utility model, namely solve glare problem.
More excellent, in another embodiment:
The area in described air inlet cross section is greater than the area in described air outlet cross section.
For this embodiment, it is conducive to cross-ventilation.Make use of the principle being similar to stack effect herein, in reality, the mouth of chimney is general also little than bottom, is conducive to exhausting.
More excellent, in another embodiment:
By the straight line of the geometric center in described air inlet cross section and the geometric center in air outlet cross section, with the axis being parallel of described bulb.
For this embodiment, which show a kind of technical scheme realizing being parallel to the air channel of bulb axis.
More excellent, in another embodiment:
By the straight line of the geometric center in described air inlet cross section and the geometric center in air outlet cross section, not parallel with the axis of described bulb, and the geometric center in described air inlet cross section is greater than the distance of geometric center to the axis of described bulb in described air outlet cross section to the distance of the axis of described bulb.
Compared with previous embodiment, which show a kind of design of tilting air channel, this inclination is more conducive to the flowing of air in air channel, is namely conducive to the rising of hot-air and constantly supplementing of cold air.
More excellent, in another embodiment:
Described multiple air channel includes the inwall of sealing, and the inwall of described sealing is independently formed by lamp body self.
With regard to this embodiment, which show the mode that a kind of wind path wall is formed, namely all provided by radiator self.
More excellent, in another embodiment:
See Fig. 1, lamp body comprises outer wall and inwall, and described multiple air channel includes the inwall of sealing, and after described lamp holder connects described lamp body completely, the inwall of described sealing is mutually plugged into by lamp body and lamp holder and formed.
Compared with previous embodiment, this embodiment apparently provides another kind of resolving ideas, and namely mutually plugged into by radiator place lamp body and lamp holder and formed in air channel.With regard to embodiment described in Fig. 1, its lamp body obviously possesses outer wall and inwall, each part in trapezoidal (up-narrow and down-wide) that its lamp holder designs, and can be combined formation air channel by the inwall in lamp body.Further, the design in lamp holder also can be considered to combine, as long as can form air channel with outer wall.
Preferably, the rib that described lamp body has several to protrude, described lamp holder has the corresponding groove fallen in of equivalent amount.Disposable, the groove that described lamp body has several to fall in, described lamp holder has the rib of the corresponding protrusion of equivalent amount.
More excellent, in another embodiment:
Described multiple air channel includes the inwall of sealing, wherein the inwall of the described sealing in part air channel is independently formed by lamp body self, after described lamp holder connects described lamp body completely, the inwall of the described sealing in remaining air channel is then mutually plugged into by lamp body and lamp holder and is formed.
Compared with the first two embodiment, this embodiment obviously combines the first two embodiment, and the air channel providing another kind of citation form forms scheme, that is: part is formed by lamp body, and part is then plugged into by lamp body and lamp holder and formed.
More excellent, in another embodiment:
Described heat spreader structures adopts the aluminum alloy materials containing Graphene.
Easy understand, this embodiment define a kind of concrete radiator material, be conducive to the portability of high efficiency and heat radiation and radiator.
More excellent, in another embodiment:
The bus of described hollow round table and the angle of axis are 30 °.
With regard to this embodiment, the design of the lamp body inside of mating when this embodiment offers a kind of concrete light bar and its installation.
Fig. 3,4 schematic diagrames illustrating the radiator an embodiment from the visual angle of analysing and observe and overlook, its outer wall and inwall are formed by radiator self.Then that sealing inwall is plugged into by lamp body and lamp holder and formed in Fig. 1.
Preferred, lampshade can adopt light diffusing agent, also claims light spread powder.Thus, advantageously in solution glare problem.
Preferred, each air channel in some air channel when mounting condition allows, can be designed to L-type air channel, and wherein the mouth at the minor face place of L-type is air inlet, and the mouth of long edge position is air outlet.Like this, when L-type air channel air outlet always relative to air inlet in more top spatially time, air inlet can entering advantageously in cold air, thus be more conducive to the discharge of hot-air.
More than utilize specific case to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands the technical solution of the utility model and core concept thereof for helping; For those skilled in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (16)
1. a bulb, is characterized in that:
One end of described bulb is lampshade, and the other end is lamp holder, and along lampshade to the direction of lamp holder, what run through the axis of described bulb is lampshade, lamp body successively, lamp holder, and lamp holder;
Described lamp body inside comprises at least 2 LED lamp bead, and a reflection shield;
Described reflection shield at least reflexes to described lampshade for a part for the light described at least 2 LED lamp bead sent and projects away via described lampshade.
2. bulb according to claim 1, is characterized in that:
Described lamp body inside is hollow structure;
In the side of lamp body near lampshade, a light bar is installed on the inwall of described lamp body;
Described at least 2 LED lamp bead, be then installed on described light bar.
3. bulb according to claim 2, is characterized in that:
Described reflection shield is axisymmetric hollow surface geometry body, the section profile curve of described surface geometry body is hyperbola or circular arc or elliptic arc, and described surface geometry body comprises total two openings be positioned near lampshade and close lamp holder, the cross section of described two openings is the circular cross-section of the axis perpendicular to described bulb, and the area of the described open circles tee section of close lampshade is less than the area of the described open circles tee section near lamp holder, wherein: the axis of described reflection shield and the dead in line of described bulb.
4. bulb according to claim 3, is characterized in that:
Described lamp body outside is heat spreader structures, is beneficial to heat radiation during bulb work.
5. bulb according to claim 4, is characterized in that:
Described heat spreader structures comprises multiple air channel, and described multiple air channel includes air inlet and air outlet, and described air inlet is positioned near described lampshade place, and described air outlet is positioned near described lamp hold.
6. the bulb according to claim 3 or 4, is characterized in that:
Described light bar is the shaped hollow round table light bar of the equal open-ended of an end to end upper bottom surface, the center line of described shaped hollow round table light bar and the dead in line of described bulb;
Described round table-like light bar back-off is in the inwall of described lamp body;
Described at least 2 LED lamp bead are positioned in a lamp pearl circular cross-section, described lamp pearl circular cross-section is a cross section of the upper bottom surface being parallel to described round table-like light bar, and described lamp pearl circular cross-section be described round table-like light bar upper bottom surface between a circular cross-section;
Along lampshade to the direction of lamp holder, for described lamp body, run through the open circles tee section having the close lamp holder of the bottom surface of the open circles tee section of the close lampshade of described reflection shield, described round table-like light bar, described lamp pearl circular cross-section, described reflection shield according to this of the axis of described bulb, and the upper bottom surface of described shaped hollow round table light bar.
7. the bulb according to claim 3 or 4, is characterized in that:
Described light bar is the shaped hollow round table light bar of the equal open-ended of an end to end upper bottom surface, the center line of described shaped hollow round table light bar and the dead in line of described bulb;
Described round table-like light bar back-off is in the inwall of described lamp body;
Described at least 2 LED lamp bead are positioned in a lamp pearl circular cross-section, described lamp pearl circular cross-section is a cross section of the upper bottom surface being parallel to described round table-like light bar, and described lamp pearl circular cross-section be described round table-like light bar upper bottom surface between a circular cross-section;
Along lampshade to the direction of lamp holder, for described lamp body, what run through the axis of described bulb has the bottom surface of the open circles tee section of the close lampshade of described reflection shield, described round table-like light bar, described lamp pearl circular cross-section according to this, and the upper bottom surface of the described shaped hollow round table light bar overlapped with the open circles tee section of the close lamp holder of described reflection shield.
8. bulb according to claim 5, is characterized in that:
The area in described air inlet cross section is greater than the area in described air outlet cross section.
9. bulb according to claim 5, is characterized in that:
By the straight line of the geometric center in described air inlet cross section and the geometric center in air outlet cross section, with the axis being parallel of described bulb.
10. bulb according to claim 5, is characterized in that:
By the straight line of the geometric center in described air inlet cross section and the geometric center in air outlet cross section, not parallel with the axis of described bulb, and the geometric center in described air inlet cross section is greater than the distance of geometric center to the axis of described bulb in described air outlet cross section to the distance of the axis of described bulb.
11. bulbs according to claim 5, is characterized in that:
Described multiple air channel includes the inwall of sealing, and the inwall of described sealing is independently formed by lamp body self.
12. bulbs according to claim 5, is characterized in that:
Described multiple air channel includes the inwall of sealing, and after described lamp holder connects described lamp body completely, the inwall of described sealing is mutually plugged into by lamp body and lamp holder and formed.
13. bulbs according to claim 5, is characterized in that:
Described multiple air channel includes the inwall of sealing, wherein the inwall of the described sealing in part air channel is independently formed by lamp body self, after described lamp holder connects described lamp body completely, the inwall of the described sealing in remaining air channel is then mutually plugged into by lamp body and lamp holder and is formed.
14. bulbs according to claim 4, is characterized in that: described heat spreader structures adopts the aluminum alloy materials containing Graphene.
15. bulbs according to claim 6, is characterized in that:
The bus of described hollow round table and the angle of axis are 30 °.
16. bulbs according to claim 7, is characterized in that:
The bus of described hollow round table and the angle of axis are 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520224158.7U CN204756487U (en) | 2015-04-14 | 2015-04-14 | Lamp bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520224158.7U CN204756487U (en) | 2015-04-14 | 2015-04-14 | Lamp bulb |
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| Publication Number | Publication Date |
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| CN204756487U true CN204756487U (en) | 2015-11-11 |
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| CN201520224158.7U Active CN204756487U (en) | 2015-04-14 | 2015-04-14 | Lamp bulb |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728647A (en) * | 2015-04-14 | 2015-06-24 | 广州光炬智能科技有限公司 | Bulb |
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2015
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728647A (en) * | 2015-04-14 | 2015-06-24 | 广州光炬智能科技有限公司 | Bulb |
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Effective date of registration: 20180508 Address after: 510900 the high tech Industrial Park of Conghua Economic Development Zone, Guangzhou, Guangdong, south of the 6 3 floor of No. 12 Fuyuan Road. Patentee after: GUANGZHOU TRIZ INFORMATION TECHNOLOGY Ltd. Address before: No. 57 Xunyang Road, Xunyang District, Jiujiang, Jiangxi Province, Jiangxi Patentee before: Hu Jun |
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Effective date of registration: 20220324 Address after: 571300 Room 806, building 5, Qinglan Peninsula, Wenchang City, Hainan Province Patentee after: Zhang Botao Address before: 510900 the high tech Industrial Park of Conghua Economic Development Zone, Guangzhou, Guangdong, south of the 6 3 floor of No. 12 Fuyuan Road. Patentee before: GUANGZHOU TRIZ INFORMATION TECHNOLOGY Ltd. |
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Effective date of registration: 20230926 Address after: Room 802, 8th Floor, Kangyang Building, No. 406 Chunfeng Road, Huangdai Town, Xiangcheng District, Suzhou City, Jiangsu Province, 215100 Patentee after: Suzhou Innopam Intelligent Technology Co.,Ltd. Address before: 571300 Room 806, building 5, Qinglan Peninsula, Wenchang City, Hainan Province Patentee before: Zhang Botao |