CN204178269U - The heat radiation bluff piece structure of memory modules - Google Patents
The heat radiation bluff piece structure of memory modules Download PDFInfo
- Publication number
- CN204178269U CN204178269U CN201420498167.0U CN201420498167U CN204178269U CN 204178269 U CN204178269 U CN 204178269U CN 201420498167 U CN201420498167 U CN 201420498167U CN 204178269 U CN204178269 U CN 204178269U
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- CN
- China
- Prior art keywords
- heat radiation
- bluff piece
- memory modules
- button hole
- bluff
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Abstract
A kind of heat radiation bluff piece structure of memory modules, it is covered in memory modules two side with two identical heat radiation bluff pieces, side above the corresponding memory modules of heat radiation bluff piece is provided with hook part and button hole seat that can be interconnected, and the bluff piece that dispels the heat corresponds to memory modules two side respectively via a length, the joint portion that short linking part bends in the same way in conjunction with two, a combined hole is provided with in each joint portion, two identical conjunctions are separately had to be provided with elastic dilatation portion respectively at stage casing, when making the two relative closings of heat radiation bluff piece, first can be formed via this hook part and button hole seat and link, and make two relative joint portions be formed stacked, make two combined holes at least part superposition, inserting respectively with two conjunctions is embedded in two combined holes of this coincidence again, elastic dilatation portion is utilized to be resisted against two combined hole inner circumferential sides, guarantee that two joint portions are held in binding site, use and make two heat radiation bluff pieces be easy to assemble and the combination not easily got loose in the formation of memory modules two side.
Description
Technical field
The utility model about a kind of heat radiation bluff piece structure of memory modules, espespecially a kind of can utilize fastener in multiple edges of two heat radiation bluff pieces and insert the mode such as embedding form the firm heat radiation bluff piece structure combined.
background technology
The bluff piece device of existing memory modules, announces No. 495101 " EMS memory heat radiating device " just like TaiWan, China new patent, and it is provided with snapping hook in heat radiator upper end and snapping hole fastens two heat radiator, and binds internal memory with heat conduction film betwixt; Meanwhile, in heat radiator arranged outside clamp jaws, combine with the barb in clamp jaws and the button hole on heat radiator, and fixing object can be reached.
But this kind of known technology, due to the sheet that the snapping hook on heat radiator is together width, and snapping hole is also the square hole slightly larger than this sheet snapping hook, the snapping hook when combining is made easily to depart from snapping hole, thus cause the difficulty of binding internal memory, once bind mistake, internal memory must be torn off and again fit, easy damage memory chip, forms the disappearance in an application.
TaiWan, China new patent is separately had to announce No. M261967 " protective device of memory modules ", its for applicant in this case apply for one before case, its disclose comprise a pair can the bluff piece of covering memory, this is provided with film to bluff piece relative inner face, and upside edge respectively Relative vertical fold a pair cramp and button hole seat, the fastening piece of this cramp can stretch in the button hole of button hole seat, lateral margin on two bluff pieces is made to form buckling state to accommodate internal memory, and utilize film that itself and internal memory are fitted, in fastening piece end, at least a trip is extended in side, backstop is formed when fastening piece buckles into button hole, and make two bluff pieces of fastening not easily separated.In addition, two bluff pieces can be provided with U-shaped clamp jaws further, form breach by its both sides, pinch end, coordinate with the projection of bluff piece groove, to increase the slip-off preventing design of clasp; And and then form the segment difference section of an evagination in the ora terminalis centre position of pinch and bluff piece groove root edge forms a gap, to be easy to U-shaped clamp jaws to dismantle.
But, though this kind of structure effectively can improve locating effect during assembling, and have and make U-shaped clamp jaws be easier to the features such as dismounting, but the structure of two bluff pieces is only linked with an avris, when binding internal memory, the possibility of internal memory still oriented both sides skew, and then the heat radiator position corresponding to departing from, cause bonding mistake, have equally internal memory to be torn off and again fit, easily damage memory chip, cause the disappearances such as bluff piece distortion.
Because see that the heat radiation bluff piece structure of memory modules has above-mentioned shortcoming, this case designer is the road for these shortcoming Improvements, finally has the utility model to produce.
Utility model content
The utility model fundamental purpose is the heat radiation bluff piece structure providing a kind of memory modules, and it can make two heat radiation bluff pieces be formed firmly and the combination not easily got loose in memory modules two side.
Another object of the present utility model is the heat radiation bluff piece structure providing a kind of memory modules, the mode that its hook part utilizes insertion hook to hold and button hole seat link, and two joint portions are inserted via conjunction the combined hole mode being embedded in coincidence and combined, very convenient in the assembling of therefore its entirety.
Another object of the present utility model is the heat radiation bluff piece structure providing a kind of memory modules, is binded, therefore can reduce the damage of this memory modules between its two heat radiation bluff pieces and memory modules without using the film that stickiness is excessively strong in time dismantling.
For reaching above-mentioned purpose and effect, the technical scheme practiced by the utility model is: a kind of heat radiation bluff piece structure of memory modules, and it at least comprises:
Two are covered in the identical heat radiation bluff piece that memory modules two shows side, the avris of this heat radiation bluff piece above corresponding memory modules is provided with bending in the same way and the interconnected hook part of energy and a button hole seat, this hook part, button hole seat is arranged at heat radiation bluff piece edge by two ends are equidistant towards stage casing, and this heat radiation bluff piece corresponds to memory modules two side respectively via a length, the joint portion that short linking part bends in the same way in conjunction with two respectively, a combined hole is provided with in each joint portion, when making the two relative closings of heat radiation bluff piece, can be formed via this hook part and button hole seat and link, utilize this length simultaneously, short linking part makes two relative joint portions be formed stacked, and make two combined holes at least part superposition,
Two conjunctions, can insert with local is respectively embedded in two combined holes of this coincidence, be provided with tool in conjunction stage casing and expand outwardly flexible elastic dilatation portion, utilize this elastic dilatation portion to be resisted against two combined hole inner circumferential sides, the stacked joint portion of two-phase can be made to stablize and be held in binding site and not easily get loose.
According to said structure, the combined hole of this joint portion is an elongated hole, and this conjunction is a U-shaped structure, and this elastic dilatation portion is arranged at stage casing, U-shaped structure two side.
According to said structure, this conjunction is provided with the block end of outwards bending in two ends.
According to said structure, this button hole seat is linked to this heat radiation bluff piece via the kink that bends, and be provided with a button hole in button hole seat, this hook part links a buckle portion by the kink that this heat radiation bluff piece edge one is bending, this buckle portion can be passed corresponding button hole and extend to kink rear, and this this buckle portion laterally cannot be skidded off by button hole by kink block.
According to said structure, this button hole one avris is provided with and outwards protrudes out and the narrower side recess of width, then correspondingly in this buckle portion is provided with one by the side hook of this side recess.
According to said structure, this button hole week side be provided with two relative evaginations and stretch and the narrower side recess of width, then correspondingly in this buckle portion be provided with two by the side hook of this side recess.
According to said structure, this button hole stage casing is horizontally set with a middle interconnecting piece, and in this buckle portion, then correspondence is provided with the intermediate channel of one end open.
According to said structure, this side chimoto is circular arc.
According to said structure, another cover unification clamp jaws outside this two heat radiations bluff piece, this clamp jaws has two folders and is against contained side outside each heat radiation bluff piece, a clip recess is respectively equipped with in each contained side stage casing, and be provided with under shed at least one avris of opening inner side of clamp jaws, and this heat radiation bluff piece is provided with at least one elastic lug corresponding to each clip recess in the table side away from hook part, button hole seat.
According to said structure, between this heat radiation bluff piece and memory modules, be provided with a breaker strip.
Compared with prior art, the beneficial effect that the utility model has is: the utility model utilizes the hook part that is oppositely arranged and button hole seat formation hook to hold in an avris of two heat radiation bluff pieces, again in heat radiation bluff piece two side be provided with can be relatively stacked joint portion, the combined hole that can relatively overlap is provided with in each joint portion, utilizing two conjunctions to insert with local is embedded in two combined holes of this coincidence, two joint portions can be made to be formed link, by the link of this joint portion, the hook of hook part and button hole seat is coordinated to hold, two heat radiation bluff pieces can be made to be formed firmly and the combination not easily got loose in memory modules two side.
Can obtain for making above-mentioned purpose of the present utility model, effect and feature and understand more specifically, hereby be described as follows according to following accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the STRUCTURE DECOMPOSITION figure of the utility model first embodiment.
Fig. 2 is the close-up schematic view of the utility model first embodiment.
Fig. 3 is the entire combination outside drawing of the utility model first embodiment.
Fig. 4 is the close-up schematic view of the utility model second embodiment.
Fig. 5 is the close-up schematic view of the utility model the 3rd embodiment.
Fig. 6 is the structure decomposition map of the utility model the 4th embodiment.
Fig. 7 is the entire combination outside drawing of the utility model the 4th embodiment.
Label declaration:
1,1a, 1b, 1c heat radiation bluff piece;
11,12 joint portions;
111,121 combined holes;
112 long linking parts;
122 short linking parts;
13,13a, 13b hook part;
131,141,131a, 141a, 131b, 141b kink;
132,132a, 132b buckle portion;
133,133a, 133b side hook;
134b intermediate channel;
14,14a, 14b button hole seat;
142,142a, 142b button hole;
143,143a, 143b side recess;
144b middle interconnecting piece;
16c elastic lug;
17c clamp jaws;
171c contained side;
172c clip recess;
173c under shed;
2 memory modules;
21 circuit boards;
22 memory chips;
3 conjunctions;
31 elastic dilatation portions;
32 block ends;
A breaker strip.
Embodiment
Shown in please refer to the drawing 1 to Fig. 3, the structure of known the utility model first embodiment mainly comprises: assembly such as heat radiation bluff piece 1 and conjunction 3 etc., wherein this heat radiation bluff piece 1 is preset avris in one and is provided with bending in the same way and can interconnected hook part 13 and a button hole seat 14, and this hook part 13, button hole seat 14 is arranged at heat radiation this default edge of bluff piece 1 by two ends are equidistant towards stage casing, and it is long via one respectively in this default edge two side, short linking part 112, 122 in conjunction with two and this hook part 13, the joint portion 11 that button hole seat 14 bends in the same way, 12, and in each joint portion 11, a combined hole 111 is respectively equipped with on 12, 121.
Conjunction 3 is at least locally to insert the structure be embedded in two combined holes 111,121 of this coincidence, is provided with tool expands outwardly flexible elastic dilatation portion 31 in its stage casing, and is provided with the block end 32 of outwards bending at least one end.
During assembling, relatively be connivent in a memory modules 2 two with two identical heat radiation bluff pieces 1 and show side, this memory modules 2 is incorporated on a circuit board 21 by multiple memory chip 22 and forms, and this two heat radiations bluff piece 1 can be covered on memory chip 22 completely, separately in heat radiation bluff piece 1 and memory chip 22(memory modules 1) between this breaker strip of breaker strip A(A can be set according to need can be a low stickiness or do not have an elastic sheet of stickiness, to provide the damping of shocks between heat radiation bluff piece 1 and memory chip 22, and the dismounting that can not affect this heat radiation bluff piece 1 be separated).
Combine with button hole seat 14 with this hook part 13, two heat radiation bluff pieces 1 can be made to be formed with the avris above corresponding memory modules 2 link, recycle this long and short linking part 112,122 different development lengths, two relative joint portions 11,12 can be made to be formed overlapped, and make two combined holes 111,121 at least part superposition; Finally inserting with conjunction 3 is embedded in two combined holes 111,121 of this coincidence, its elastic dilatation portion 31 is utilized to be resisted against two combined hole 111,121 inner circumferential sides, maintain to make two combined holes 111,121 and overlap, this two joint portion 11,12 can be made to be formed in memory modules 2 side and be easy to assembling and the link not easily got loose and location.
In said structure, this combined hole 111,121 is better with elongated hole, this conjunction 3 can coordinate this combined hole 111,121 and be a U-shaped structure, and this elastic dilatation portion 31 is arranged at two stage casings, side of U-shaped structure, utilize this two elastic dilatations portion 31 elasticity to support to arrive in this combined hole 111,121(elongated hole) two ends, can effectively avoid conjunction 3 to produce to rotate and slippage, to keep stable clip state; But when practical application, this combined hole 111,121 is not limited to elongated hole, and this conjunction 3 also can be the elastic body of other shape beyond U-shaped.
In a feasible embodiment, the kink 141 bent below memory modules 2 one day is provided with between this button hole seat 14 and this heat radiation bluff piece 1, and be provided with a button hole 142 in button hole seat 14, be provided with in this button hole 142 1 avris and outwards protrude out and the narrower side recess 143 of width, this hook part 13 links one by this heat radiation bluff piece 1 edge through the kink 131 that one day is bending below memory modules 2 can stretch into the buckle portion 132 that this button hole 142 forms link, correspondingly in this buckle portion 132 be provided with one by the side hook 133 of this side recess 143, during combination, can dispelling the heat two, bluff pieces 1 make each buckle portion 132 with orthogonal direction, side hook 133 is each passed through corresponding button hole 142, side recess 143, make that two heat radiation bluff pieces 1 are parallel fits in memory modules 2 two side again, now, this buckle portion 132, side hook 133 extend to kink 141 rear, form the combination that this buckle portion 132, side hook 133 laterally cannot be skidded off by button hole 142, side recess 143 by kink 141 block, use this hook part 13 is formed with button hole seat 14 link.
Shown in please refer to the drawing 4, the structure of known the utility model second embodiment mainly comprises: heat radiation bluff piece 1a, and the assembly such as the conjunction 3 identical with aforementioned first embodiment, wherein this heat radiation bluff piece 1a has the joint portion 11 identical with aforementioned first embodiment, 12 and dependency structure feature, and this joint portion 11, 12 is also identical with this first embodiment with the array mode of conjunction 3, its difference is: the avris of this heat radiation bluff piece 1a above corresponding memory modules 2 is provided with bending in the same way and an an energy interconnected hook part 13a and button hole seat 14a, and this hook part 13a, button hole seat 14a is arranged at heat radiation bluff piece 1a edge by two ends are equidistant towards stage casing.
In the present embodiment, the kink 141a bent below memory modules 2 one day is provided with between this button hole seat 14a and this heat radiation bluff piece 1a, and be provided with a button hole 142a in button hole seat 14a, be provided with two relative evaginations in this button hole 142a week side to stretch and the narrower side recess 143a of width, this hook part 13a links one by this heat radiation bluff piece 1a edge through the kink 131a that one day is bending below memory modules 2 can stretch into the buckle portion 132a that this button hole 142a forms link, on this buckle portion 132a, correspondence is provided with two by the side hook 133a of each side recess 143a.
During combination, two heat radiation bluff piece 1a can be made each buckle portion 132a with orthogonal direction, side hook 133a is each passed through corresponding button hole 142a, side recess 143a, make that two heat radiation bluff piece 1a are parallel fits in memory modules 2 two side again, now, this buckle portion 132a, side hook 133a extends to kink 141a rear, form this buckle portion 132a, side hook 133a cannot by button hole 142a by kink 141a block, the combination that side recess 143a laterally skids off, use and this hook part 13a and button hole seat 14a is formed link.
Shown in please refer to the drawing 5, the structure of known the utility model the 3rd embodiment mainly comprises: heat radiation bluff piece 1b, and the assembly such as the conjunction 3 identical with aforementioned first embodiment, wherein this heat radiation bluff piece 1b has the joint portion 11 identical with aforementioned first embodiment, 12 features such as dependency structure such as grade, and this joint portion 11, 12 is also identical with this first embodiment with the array mode of conjunction 3, its difference is only: the avris of this heat radiation bluff piece 1b above corresponding memory modules 2 is provided with bending in the same way and an an energy interconnected hook part 13b and button hole seat 14b, and this hook part 13b, button hole seat 14b is arranged at heat radiation bluff piece 1b edge by two ends are equidistant towards stage casing.
In the present embodiment, the kink 141b bent below memory modules 2 one day is provided with between this button hole seat 14b and this heat radiation bluff piece 1b, and be provided with a button hole 142b in button hole seat 14b, be provided with two relative evaginations in this button hole 142b week side to stretch and the narrower side recess 143b of width, and be horizontally set with a middle interconnecting piece 144b in button hole 142b stage casing, this hook part 13b links one by this heat radiation bluff piece 1b edge through the kink 131b that one day is bending below memory modules 2 can stretch into the buckle portion 132b that this button hole 142b forms link, on this buckle portion 132b, correspondence is provided with two by the side hook 133b of each side recess 143b, and correspondence is provided with the intermediate channel 134b of one end open on buckle portion 132b.
During combination, two heat radiation bluff piece 1b can be made each buckle portion 132b with orthogonal direction, side hook 133b is each passed through corresponding button hole 142b, side recess 143b, and with this this middle interconnecting piece of intermediate channel 134b fit 144b, make that two heat radiation bluff piece 1b are parallel fits in memory modules 2 two side again, now, this buckle portion 132b, side hook 133b extends to kink 141b rear, form this buckle portion 132b, side hook 133b cannot by button hole 142b by kink 141a block, the combination that side recess 143b laterally skids off, use and this hook part 13b and button hole seat 14b is formed link.
In the structure of first, second and third embodiment above-mentioned of the present utility model, the end of this side hook 133,133a, 133b is except general right angle, acute angle shape, and it also can be circular arc; Meanwhile, the end of this side recess 143,143a, 143b has and this side hook 133, shape that 133a, 133b are identical.
Please refer to the drawing 6, shown in 7, the structure of known the utility model the 4th embodiment mainly comprises: heat radiation bluff piece 1c, and the assembly such as the conjunction 3 identical with aforementioned first embodiment, wherein this heat radiation bluff piece 1c has the joint portion 11 identical with aforementioned first embodiment, 12, hook part 13, button hole seat 14 and dependency structure feature thereof, and this hook part 13, the mutual combination of button hole seat 14, and joint portion 11, 12 is also identical with this first embodiment with modes such as the combinations of conjunction 3, its difference is: this heat radiation bluff piece 1c is in away from hook part 13, one table side of button hole seat 14 is provided with at least one elastic lug 16c outwardly.
When practical application, the clamp jaws 17c of a ㄇ shape can be utilized to be sleeved on outside two heat radiation bluff piece 1c, this clamp jaws 17c has two folders and is against contained side 171c outside each heat radiation bluff piece 1c, be respectively equipped with the clip recess 172c that corresponds to each elastic lug 16c in each contained side 171c stage casing, and be provided with under shed 173c at least one avris of opening inner side of clamp jaws 17c.
After two heat radiation bluff piece 1c are combined in memory modules 2 two side according to aforementioned first embodiment same way, clamp jaws 17c can be sleeved on outside two heat radiation bluff piece 1c, in the clip recess 172c of correspondence, location is formed by each elastic lug 16c tuck pointing, two contained side 171c can be dispelled the heat bluff piece 1c, to prevent from further getting loose both it in clamping closely two; This under shed 173c then can stretch into for suitable instrument (as: bottle opener), can stick up out the opening of this clamp jaws 17c, make each clip recess 172c depart from each elastic lug 16c, be beneficial to dismantle this clamp jaws 17c.
Comprehensive the above, the heat radiation bluff piece structure of the utility model memory modules really can reach that to simplify assembling, locating effect good and be easy to effect of dismantling, and be the utility model of a tool novelty and progressive in fact, new patent is filed an application in whence in accordance with the law; But the content of above-mentioned explanation, be only preferred embodiment of the present utility model and illustrate, the change such as extended according to the utility model technological means and category, modification, change or equivalent replacement, also all should fall in patent claim of the present utility model.
Claims (10)
1. a heat radiation bluff piece structure for memory modules, is characterized in that at least comprising:
Two are covered in the identical heat radiation bluff piece that memory modules two shows side, the avris of this heat radiation bluff piece above corresponding memory modules is provided with bending in the same way and the interconnected hook part of energy and a button hole seat, this hook part, button hole seat is arranged at heat radiation bluff piece edge by two ends are equidistant towards stage casing, and this heat radiation bluff piece corresponds to memory modules two side respectively via a length, the joint portion that short linking part bends in the same way in conjunction with two respectively, a combined hole is provided with in each joint portion, when making the two relative closings of heat radiation bluff piece, can be formed via this hook part and button hole seat and link, utilize this length simultaneously, short linking part makes two relative joint portions be formed stacked, and make two combined holes at least part superposition,
Two conjunctions, can insert with local is respectively embedded in two combined holes of this coincidence, be provided with tool in conjunction stage casing and expand outwardly flexible elastic dilatation portion, utilize this elastic dilatation portion to be resisted against two combined hole inner circumferential sides, the stacked joint portion of two-phase can be made to stablize and be held in binding site and not easily get loose.
2. the heat radiation bluff piece structure of memory modules as claimed in claim 1, it is characterized in that, the combined hole of this joint portion is an elongated hole, and this conjunction is a U-shaped structure, and this elastic dilatation portion is arranged at stage casing, U-shaped structure two side.
3. the heat radiation bluff piece structure of memory modules as claimed in claim 2, is characterized in that, this conjunction is provided with the block end of outwards bending in two ends.
4. the heat radiation bluff piece structure of memory modules as claimed in claim 1, it is characterized in that, this button hole seat is linked to this heat radiation bluff piece via the kink that bends, and be provided with a button hole in button hole seat, this hook part links a buckle portion by the kink that this heat radiation bluff piece edge one is bending, this buckle portion can be passed corresponding button hole and extend to kink rear, and this this buckle portion laterally cannot be skidded off by button hole by kink block.
5. the heat radiation bluff piece structure of memory modules as claimed in claim 4, is characterized in that, this button hole one avris is provided with and outwards protrudes out and the narrower side recess of width, then correspondingly in this buckle portion is provided with one by the side hook of this side recess.
6. the heat radiation bluff piece structure of memory modules as claimed in claim 4, is characterized in that, this in button hole week side be provided with two relative evaginations and stretch and the narrower side recess of width, then correspondingly in this buckle portion be provided with two by the side hook of this side recess.
7. the heat radiation bluff piece structure of memory modules as claimed in claim 6, it is characterized in that, this button hole stage casing is horizontally set with a middle interconnecting piece, and in this buckle portion, then correspondence is provided with the intermediate channel of one end open.
8. the heat radiation bluff piece structure of the memory modules as described in claim 5 or 6, is characterized in that, this side chimoto is circular arc.
9. the heat radiation bluff piece structure of memory modules as claimed in claim 1, it is characterized in that, another cover unification clamp jaws outside this two heat radiations bluff piece, this clamp jaws has two folders and is against contained side outside each heat radiation bluff piece, a clip recess is respectively equipped with in each contained side stage casing, and be provided with under shed at least one avris of opening inner side of clamp jaws, and this heat radiation bluff piece is provided with at least one elastic lug corresponding to each clip recess in the table side away from hook part, button hole seat.
10. the heat radiation bluff piece structure of memory modules as claimed in claim 1, is characterized in that, be provided with a breaker strip between this heat radiation bluff piece and memory modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420498167.0U CN204178269U (en) | 2014-09-01 | 2014-09-01 | The heat radiation bluff piece structure of memory modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420498167.0U CN204178269U (en) | 2014-09-01 | 2014-09-01 | The heat radiation bluff piece structure of memory modules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204178269U true CN204178269U (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420498167.0U Expired - Fee Related CN204178269U (en) | 2014-09-01 | 2014-09-01 | The heat radiation bluff piece structure of memory modules |
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| Country | Link |
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| CN (1) | CN204178269U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677726A (en) * | 2020-05-15 | 2020-09-18 | 宜鼎国际股份有限公司 | Interface card and memory card fixing device |
-
2014
- 2014-09-01 CN CN201420498167.0U patent/CN204178269U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677726A (en) * | 2020-05-15 | 2020-09-18 | 宜鼎国际股份有限公司 | Interface card and memory card fixing device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20180901 |