CN203748175U - Heat radiation device and electronic equipment - Google Patents
Heat radiation device and electronic equipment Download PDFInfo
- Publication number
- CN203748175U CN203748175U CN201420016711.3U CN201420016711U CN203748175U CN 203748175 U CN203748175 U CN 203748175U CN 201420016711 U CN201420016711 U CN 201420016711U CN 203748175 U CN203748175 U CN 203748175U
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- fan
- air outlet
- dividing plate
- electronic equipment
- heat abstractor
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Abstract
The utility model relates to a heat radiation device and electronic equipment. According to the heat radiation device, a baffle board is arranged between a first fan and a second fan, the baffle board and the first fan have an inclination angle, the baffle board and the second fan have an inclination angles, so an air outlet of the second fan inclines to an air outlet of the first fan side, or an air outlet of the first fan inclines to an air outlet of the second fan side, when a support cantilever portion at a central position of a casing of the electronic equipment blocks an air outlet at a central position of the casing of the electronic equipment, the air outlet of the first fan inclining to one side and the air outlet of the second fan make the led-out hot air be led out through a casing air outlet which is not blocked by a support cantilever, and the heat radiation requirements of the electronic equipment can be satisfied.
Description
Technical field
The utility model relates to a kind of heat abstractor and electronic equipment.
Background technology
Along with the development of electronic technology, people are the function to integrated desktop in daily life and work, good looking appearances etc. require more and more higher, slowly improve to multiple use pattern integrated desktop from the integrated desktop of single use pattern, but in use procedure for multiple use pattern integrated desktop, after multiple use pattern integrated desktop, there is a support, be generally positioned at multiple use pattern integrated desktop center position below; But in order to obtain best radiating effect, the heat abstractor (as fan) that is positioned at integrated desktop inside often also needs to be arranged in the centre position of integrated desktop, to guarantee abundant heat radiation.So in the time that user sets level to meet touch user demand by multiple use pattern integrated desktop, the cantilever of support tends to the heat radiation outlet of integrated desktop to block, thereby reduce the heat-sinking capability of heat abstractor.
In prior art, generally adopt in two ways and address the above problem: the first, heat abstractor adopts high static pressure fan heat radiation, but in the time touching use, high static pressure fan can provide very high static pressure, to meet the radiating requirements of system.But high static pressure fan can produce very large extra noise in the time of work, thereby has reduced user's experience value.The second, heat abstractor (as fan) is placed on to a side of integrated desktop inside, will reduce like this radiating effect of heat abstractor, thereby also reduce the heat-sinking capability of integrated desktop.
As can be seen here, in structure and use, obviously still there is inconvenience and defect, and be urgently further improved in above-mentioned existing heat abstractor.Actively research and innovation in addition of the design people, to founding a kind of heat abstractor of new structure, makes it have more practicality.
Utility model content
The utility model provides a kind of heat abstractor and electronic equipment, and this heat abstractor not only can increase hot air flow, improves the heat dispersion of heat abstractor, meets the heat radiation requirement of electronic equipment.
First aspect, the utility model provides a kind of heat abstractor, is positioned at the centre position of electronic device shell, carries out radiating treatment for the heat generating components in described electronic device shell, it is characterized in that, comprising:
For generation of the first distinguished and admirable fan and the second fan, and described the first fan and described the second fan be arranged side by side, and between described the first fan and described the second fan, is provided with dividing plate; And the line of the central point of the central point of described the first fan and described the second fan and described dividing plate form preset angles, and wherein, described preset angles is acute angle or obtuse angle;
The air outlet of described the first fan is for a side of described dividing plate, and the air outlet of described the second fan is for the another side of described dividing plate;
One end of described dividing plate is fixedly installed on the position between described the first fan and described the second fan, and the other end of described dividing plate is arranged on the marginal position place of the air outlet on the distance casing of described electronic equipment;
The distinguished and admirable air outlet that be directed to described electronic device shell on of described dividing plate for the air outlet of distinguished and admirable and described second fan of the air outlet discharge of described the first fan is discharged.
Further, described heat abstractor, the scope of wherein said preset angles is at 65～80 degree or 100～115 degree.
Further, described heat abstractor, wherein said preset angles is 75 degree or 105 degree, and described dividing plate is directed to the distinguished and admirable maximum of the air outlet on described electronic device shell.
Second aspect, the utility model provides a kind of electronic equipment, comprises casing and for supporting the support cantilever of described electronic equipment, the centre position of described casing is provided with air outlet; Described support cantilever is arranged at the centre position of described electronic device shell; It is characterized in that, described electronic equipment also comprises:
Be positioned at the heat abstractor of described casing, and described heat abstractor is positioned at the centre position of described casing, for the heat generating components that is built in described electronic device shell is carried out to radiating treatment, described heat abstractor adopts heat abstractor described above.
Further, described electronic equipment, wherein, the shape of the air outlet on described casing comprises rectangular seam shape, and the length of air outlet on described casing is greater than the width of described support cantilever.
The utility model is about a kind of heat abstractor and electronic equipment, heat abstractor is positioned at the centre position of electronic device shell, for the heat generating components in electronic device shell is carried out to radiating treatment, this heat abstractor comprises: for generation of the first distinguished and admirable fan and the second fan, and the first fan and the second fan are arranged side by side, between the first fan and the second fan, be provided with dividing plate; And the line of the central point of the central point of the first fan and the second fan and dividing plate form preset angles, and wherein, this preset angles is acute angle or obtuse angle.The air outlet of the first fan is for a side of dividing plate, and the air outlet of the second fan is for the another side of dividing plate; One end of dividing plate is fixedly installed on the position between the first fan and the second fan, and the other end of dividing plate is arranged on the marginal position place apart from the air outlet on the casing of electronic equipment; The distinguished and admirable air outlet that be directed to electronic device shell on of dividing plate for the air outlet of distinguished and admirable and second fan of the air outlet discharge of the first fan is discharged.So, in the time that the support bracketed part for support electronic equipment blocks the air outlet on electronic device shell, this heat abstractor not only can avoid hot blast to have larger flow loss in the process deriving, and prevent that a part of hot blast from being kept off back by the support cantilever at air outlet place, increase the hot air flow of heat abstractor derivation electronic equipment air outlet, improve the heat dispersion of heat abstractor, thereby can meet the heat radiation requirement of electronic equipment.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of specification, below with preferred embodiment of the present utility model and coordinate accompanying drawing to be described in detail as follows.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is further described.
The structural representation one of a kind of heat abstractor that Fig. 1 embodiment of the present utility model proposes;
The structural representation two of a kind of heat abstractor that Fig. 2 embodiment of the present utility model proposes;
The structural representation of a kind of electronic equipment that Fig. 3 embodiment of the present utility model proposes;
In figure, 10 first fans, 20 second fans, 30 dividing plates, 40 air outlets, 50 support cantilevers, 60 casings, A preset angles.
Embodiment
Technological means and effect of taking for reaching predetermined utility model object for further setting forth the utility model, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of testing stand, structure, feature and effect thereof according to the utility model proposes, be described in detail as follows.In following explanation, the not necessarily same embodiment that different " embodiment " or " embodiment " refer to.In addition, special characteristic, structure or the feature in one or more embodiment can be combined by any suitable form.
Embodiment mono-
As shown in Figure 1, the structural representation one of a kind of heat abstractor that embodiment of the present utility model proposes, it is positioned at the centre position of electronic device shell, for the heat generating components in electronic device shell is carried out to radiating treatment, it comprises: for generation of the first distinguished and admirable fan 10 and the second fan 20, and the first fan 10 and the second fan 20 are arranged side by side, between the first fan 10 and the second fan 20, be provided with dividing plate 30; And the line of the central point of the central point of the first fan 10 and the second fan 20 and dividing plate 30 form preset angles A, wherein, this preset angles A is acute angle or obtuse angle, the air outlet 40 of the first fan 10 is for a side of dividing plate 30, and the air outlet 40 of the second fan 20 is for the another side of dividing plate 30; One end of dividing plate 30 is fixedly installed on the position between the first fan 10 and the second fan 20, and the other end of dividing plate 30 is arranged on the marginal position place apart from the air outlet 40 on the casing of electronic equipment; The distinguished and admirable air outlet 40 being directed on electronic device shell that dividing plate 30 is discharged for the air outlet 40 of distinguished and admirable and the second fan 20 that the air outlet of the first fan 10 40 is discharged.Wherein, the line of the central point of the central point of the first fan 10 and the second fan 20 and dividing plate 30 form the scope of preset angles A at 65～80 degree or 100～115 degree, when this preset angles A is 75 degree or 105 while spending, dividing plate 30 is directed to the distinguished and admirable maximum of the air outlet 40 on electronic device shell.
Conventionally, the distinguished and admirable air outlet 40 being directed on electronic device shell of discharging for the air outlet 40 of distinguished and admirable and the second fan 20 that the air outlet of the first fan 10 40 is discharged, dividing plate 30 is arranged on the perpendicular bisector of line of the central point of the first fan 10 and the central point of the second fan 20, thus the distinguished and admirable air outlet 40 leading on electronic device shell along dividing plate 30 that can make the air outlet 40 of distinguished and admirable and the second fan 20 that the air outlet 40 of the first fan 10 discharges discharge.But, in actual applications, centre position place at electronic device shell is provided with support cantilever, be used for supporting electronic equipment, and the centre position place of this electronic device shell is provided with the air outlet 40 of casing, the air outlet 40 of supposing this casing is air outlets of rectangular seam shape, and when the length of the air outlet 40 on casing is greater than the width of support cantilever, when support cantilever is not used in support electronic equipment, can support cantilever is folding, electronic equipment can be set level on the table, can cause like this support bracketed part to block the air outlet 40 on electronic device shell, what also can cause that the air outlet 40 of distinguished and admirable or the second fan 20 that the air outlet 40 of the first fan 10 discharges discharges is distinguished and admirablely stopped by support bracketed part, thereby a part of hot blast can not be derived effectively, and then reduce the heat-sinking capability of heat abstractor.
In the utility model embodiment, as shown in Figure 1, because heat abstractor is positioned at the centre position of electronic device shell, for the heat generating components in electronic device shell is carried out to radiating treatment, simultaneously, for fear of when blocking the air outlet 40 on electronic device shell for the support bracketed part of support electronic equipment, the distinguished and admirable quilt that causes the air outlet 40 of distinguished and admirable or the second fan 20 that the air outlet 40 of the first fan 10 discharges to be discharged partly stops, need the line of the central point of the central point of dividing plate 30 and the first fan 10 and the second fan 20 to form preset angles A, this preset angles is acute angle or obtuse angle, make the air outlet of the first fan and the air outlet of the second fan amesiality, the air outlet of the first amesiality fan and the air outlet of the second fan are derived the hot blast of derivation by the casing air outlet place of not blocked by support cantilever, thereby can meet the heat radiation requirement of electronic equipment.
When concrete enforcement, as shown in Figure 1, support cantilever for support electronic equipment blocks the air outlet 40 on electronic device shell, in the time that support cantilever blocks the air outlet 40 of the first fan 10, for the hot blast that the first fan 10 is produced is effectively exported, need between the first fan 10 and the second fan 20, be provided with dividing plate 30, the line of the central point of this dividing plate 30 and the first fan 10 and the central point of the second fan 20 forms preset angles A, and the scope of this preset angles A is at 100～115 degree, thereby the hot blast that the first fan 10 is produced is derived by the air outlet 40 of the second fan 20, it should be noted that, draw through test of many times, when this preset angles A is 115 while spending, because thereby making the hot blast that the first fan 10 produces, shunting action has larger flow loss in the process of guiding the second fan 20 air outlets 40.And when this preset angles A be 100 while spending, due to this preset angles, A is large not, some can be derived by the air outlet 40 along dividing plate 30 from the second fan 20 to make hot blast that the first fan 10 produces, the hot blast of another part can be kept off back by the support cantilever at the first fan 10 air outlet 40 places, thereby causes the derivation that hot blast could not maximum stream flow.When this preset angles A is 105 while spending, the hot blast major part that the first fan 10 produces can be derived by the air outlet 40 along dividing plate 30 from the second fan 20, only have the hot blast of fraction to be kept off back by the support cantilever at the first fan 10 air outlet 40 places, thereby make hot blast be directed to the flow maximum of the air outlet 40 on electronic device shell, not only avoid hot blast to have larger flow loss in the process deriving, and prevent that a part of hot blast from being kept off back by the support cantilever at the first fan 10 air outlet 40 places, can improve the heat-sinking capability of heat abstractor.
As shown in Figure 2, the structural representation two of a kind of heat abstractor that embodiment of the present utility model proposes, as shown in Figure 2, the dividing plate arranging between the first fan and the second fan, the line of the central point of the central point of this dividing plate and the first fan and the second fan forms preset angles, and the scope of this preset angles is at 65～80 degree.When concrete enforcement, support cantilever for support electronic equipment blocks the air outlet 40 on electronic device shell, in the time that support cantilever blocks the air outlet 40 of the second fan, for the hot blast that the second fan is produced is effectively exported, need between the second fan and the first fan, be provided with dividing plate, the line of the central point of the central point of this dividing plate and the second fan and the first fan forms preset angles, and the scope of this preset angles is at 65～80 degree, thereby the hot blast that the second fan is produced is derived by the air outlet 40 of the first fan, draw through test of many times, when this preset angles is 65 while spending, because thereby making the hot blast that the second fan produces, shunting action has larger flow loss in the process of guiding the first fan outlet 40.And when this preset angles be 80 while spending, because this preset angles is large not, make second fan produce hot blast some can derive by the air outlet 40 along dividing plate from the first fan, the hot blast of another part can be kept off back by the support cantilever at the second fan outlet 40 places, thereby causes the derivation that hot blast could not maximum stream flow.So, when this preset angles is 75 while spending, the hot blast major part that the second fan is produced can derive by the air outlet 40 along dividing plate from the first fan, only have the hot blast of fraction to be kept off back by the support cantilever at the second fan outlet 40 places, thereby make hot blast be directed to the flow maximum of the air outlet 40 on electronic device shell, not only avoid hot blast to have larger flow loss in the process deriving, and prevented that a part of hot blast from being kept off back by the support cantilever at the second fan outlet 40 places.Thereby improve the heat-sinking capability of heat abstractor.
The utility model is about a kind of heat abstractor, this heat abstractor is positioned at the centre position of electronic device shell, for the heat generating components in electronic device shell is carried out to radiating treatment, this heat abstractor comprises: for generation of the first distinguished and admirable fan and the second fan, and the first fan and the second fan are arranged side by side, between the first fan and the second fan, be provided with dividing plate; And the line of the central point of the central point of the first fan and the second fan and dividing plate form preset angles, and wherein, this preset angles is acute angle or obtuse angle.The air outlet of the first fan is for a side of dividing plate, and the air outlet of the second fan is for the another side of dividing plate; One end of dividing plate is fixedly installed on the position between the first fan and the second fan, and the other end of dividing plate is arranged on the marginal position place apart from the air outlet on the casing of electronic equipment; The distinguished and admirable air outlet that be directed to electronic device shell on of dividing plate for the air outlet of distinguished and admirable and second fan of the air outlet discharge of the first fan is discharged.So, in the time that the support bracketed part for support electronic equipment blocks the air outlet on electronic device shell, this heat abstractor not only can avoid hot blast to have larger flow loss in the process deriving, and prevent that a part of hot blast from being kept off back by the support cantilever at air outlet place, increase the hot air flow of heat abstractor derivation electronic equipment air outlet, improve the heat dispersion of heat abstractor, thereby can meet the heat radiation requirement of electronic equipment.
Embodiment bis-
As shown in Figure 3, the structural representation of a kind of electronic equipment that another embodiment of the present utility model proposes, as shown in Figure 3, this electronic equipment comprises casing 60 and the support cantilever 50 for support electronic equipment, the centre position of casing 60 is provided with air outlet 40; Support cantilever 50 is arranged at the centre position of electronic device shell 60; Wherein, electronic equipment also comprises: be positioned at the heat abstractor of casing 60, and heat abstractor is positioned at the centre position of casing 60, for the heat generating components that is built in electronic device shell 60 is carried out to radiating treatment, heat abstractor is above-mentioned heat abstractor.Preferably, the shape of the air outlet 40 on casing 60 comprises rectangular seam shape, and the length of air outlet 40 on casing 60 is greater than the width of support cantilever 50.
The heat abstractor that the electronic equipment of the present embodiment utilizes above-described embodiment to provide, utilize the structure of heat abstractor, be positioned at the centre position of electronic device shell 60 by heat abstractor, for the heat generating components in electronic device shell 60 is carried out to radiating treatment, it comprises: for generation of the first distinguished and admirable fan and the second fan, and the first fan and the second fan are arranged side by side, between the first fan and the second fan, be provided with dividing plate; And the line of the central point of the central point of the first fan and the second fan and dividing plate form preset angles, wherein, this preset angles is acute angle or obtuse angle, and the air outlet 40 of the first fan is for a side of dividing plate, and the air outlet 40 of the second fan is for the another side of dividing plate; One end of dividing plate is fixedly installed on the position between the first fan and the second fan, and the other end of dividing plate is arranged on the marginal position place apart from the air outlet 40 on the casing 60 of electronic equipment; The distinguished and admirable air outlet 40 being directed on electronic device shell 60 that dividing plate is discharged for the air outlet 40 of distinguished and admirable and the second fan that the air outlet of the first fan 40 is discharged.Wherein, the line of the central point of the central point of the first fan and the second fan and dividing plate form the scope of preset angles at 65～80 degree or 100～115 degree, when this preset angles is 75 degree or 105 while spending, be directed to the distinguished and admirable maximum of the air outlet 40 on electronic device shell 60.In the time that support cantilever 50 parts for support electronic equipment are blocked the air outlet 40 on electronic device shell 60, increase the hot air flow of heat abstractor derivation electronic equipment air outlet 40, improve the heat dispersion of heat abstractor, thereby can meet the heat radiation requirement of electronic equipment.
In actual applications, in order to meet the heat radiation requirement of electronic equipment, in the time that support cantilever 50 parts for support electronic equipment are blocked the air outlet 40 on electronic device shell 60, again because the shape of the air outlet 40 on casing 60 comprises that the length of the air outlet 40 on rectangular seam shape and casing 60 is greater than the width of support cantilever 50, so, in the time that this support cantilever 50 blocks the air outlet 40 of one of them fan, for the hot blast that this fan is produced is effectively exported, the line of centres that needs to be arranged on dividing plate between two fans and two fans forms preset angles, and the scope of this preset angles is at 65～80 degree or 100～115 degree, the air outlet of two fans can be tended to a side, that is to say and can tend near the casing air outlet not blocked by support cantilever, further, when this preset angles is that 75 degree or 105 are while spending, dividing plate is directed to the distinguished and admirable maximum of the air outlet 40 on electronic device shell 60.Not only can avoid hot blast to have larger flow loss in the process deriving, and prevent that a part of hot blast from being kept off back by the support cantilever 50 at air outlet 40 places.Thereby improve the heat-sinking capability of heat abstractor.
It should be noted that, electronic equipment includes but not limited to desktop computer.
The utility model is about a kind of electronic equipment, heat abstractor is positioned at the centre position of electronic device shell, for the heat generating components in electronic device shell is carried out to radiating treatment, this heat abstractor comprises: for generation of the first distinguished and admirable fan and the second fan, and the first fan and the second fan are arranged side by side, between the first fan and the second fan, be provided with dividing plate; And the line of the central point of the central point of the first fan and the second fan and dividing plate form preset angles, and wherein, this preset angles is acute angle or obtuse angle.The air outlet of the first fan is for a side of dividing plate, and the air outlet of the second fan is for the another side of dividing plate; One end of dividing plate is fixedly installed on the position between the first fan and the second fan, and the other end of dividing plate is arranged on the marginal position place apart from the air outlet on the casing of electronic equipment; The distinguished and admirable air outlet that be directed to electronic device shell on of dividing plate for the air outlet of distinguished and admirable and second fan of the air outlet discharge of the first fan is discharged.So, in the time that the support bracketed part for support electronic equipment blocks the air outlet on electronic device shell, this heat abstractor not only can avoid hot blast to have larger flow loss in the process deriving, and prevent that a part of hot blast from being kept off back by the support cantilever at air outlet place, increase the hot air flow of heat abstractor derivation electronic equipment air outlet, improve the heat dispersion of heat abstractor, thereby can meet the heat radiation requirement of electronic equipment.
Finally it should be noted that: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of the each embodiment technical scheme of the utility model.
Claims (5)
1. a heat abstractor, is positioned at the centre position of electronic device shell, carries out radiating treatment for the heat generating components in described electronic device shell, it is characterized in that, comprising:
For generation of the first distinguished and admirable fan and the second fan, and described the first fan and described the second fan be arranged side by side, and between described the first fan and described the second fan, is provided with dividing plate; And the line of the central point of the central point of described the first fan and described the second fan and described dividing plate form preset angles, and wherein, described preset angles is acute angle or obtuse angle;
The air outlet of described the first fan is for a side of described dividing plate, and the air outlet of described the second fan is for the another side of described dividing plate;
One end of described dividing plate is fixedly installed on the position between described the first fan and described the second fan, and the other end of described dividing plate is arranged on the marginal position place of the air outlet on the distance casing of described electronic equipment;
The distinguished and admirable air outlet that be directed to described electronic device shell on of described dividing plate for the air outlet of distinguished and admirable and described second fan of the air outlet discharge of described the first fan is discharged.
2. heat abstractor according to claim 1, is characterized in that, the scope of described preset angles is at 65～80 degree or 100～115 degree.
3. heat abstractor according to claim 2, is characterized in that, described preset angles is 75 degree or 105 degree, and described dividing plate is directed to the distinguished and admirable maximum of the air outlet on described electronic device shell.
4. an electronic equipment, comprises casing and for supporting the support cantilever of described electronic equipment, the centre position of described casing is provided with air outlet; Described support cantilever is arranged at the centre position of described electronic device shell; It is characterized in that, described electronic equipment also comprises:
Be positioned at the heat abstractor of described casing, and described heat abstractor is positioned at the centre position of described casing, for the heat generating components that is built in described electronic device shell is carried out to radiating treatment, described heat abstractor adopts the heat abstractor described in claim 1-3 any one.
5. electronic equipment according to claim 4, is characterized in that:
The shape of the air outlet on described casing comprises rectangular seam shape, and the length of air outlet on described casing is greater than the width of described support cantilever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420016711.3U CN203748175U (en) | 2014-01-10 | 2014-01-10 | Heat radiation device and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420016711.3U CN203748175U (en) | 2014-01-10 | 2014-01-10 | Heat radiation device and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203748175U true CN203748175U (en) | 2014-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420016711.3U Expired - Fee Related CN203748175U (en) | 2014-01-10 | 2014-01-10 | Heat radiation device and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203748175U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122051A (en) * | 2016-06-14 | 2016-11-16 | 合肥联宝信息技术有限公司 | A kind of fan and notebook computer |
-
2014
- 2014-01-10 CN CN201420016711.3U patent/CN203748175U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122051A (en) * | 2016-06-14 | 2016-11-16 | 合肥联宝信息技术有限公司 | A kind of fan and notebook computer |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20210110 |
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| CF01 | Termination of patent right due to non-payment of annual fee |