CN207947010U - A kind of intelligent LED screen with automatic cleaning function of good heat dissipation effect - Google Patents
A kind of intelligent LED screen with automatic cleaning function of good heat dissipation effect Download PDFInfo
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- CN207947010U CN207947010U CN201721756141.1U CN201721756141U CN207947010U CN 207947010 U CN207947010 U CN 207947010U CN 201721756141 U CN201721756141 U CN 201721756141U CN 207947010 U CN207947010 U CN 207947010U
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- heat dissipation
- fixed
- motor
- dissipation effect
- led screen
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Abstract
The utility model is related to a kind of intelligent LED screens with automatic cleaning function of good heat dissipation effect,Including bottom plate,LED display,Top plate,Flushing cisterns,Heat dissipation tank and wiper mechanism,Cooling mechanism is equipped in heat dissipation tank,Wiper mechanism includes rinsing unit and brush scrubbing unit,Rinsing unit includes first motor,Driving wheel,Fixed pulley,Fixed rope,Sliding block,Spring,Fixed block and at least two sparge pipes,Cooling mechanism includes endothermic box,Air inlet,Heat exchanger tube,Heat-dissipating pipe,Air exhauster,Air inlet pipe,Nozzle and several heat conducting pipes,The intelligent LED screen with automatic cleaning function of the good heat dissipation effect,The dust accumulated on LED display surface can be cleaned up by wiper mechanism,Without manually cleaning,Save cleaning cost,Moreover by cooling mechanism, the intelligent LED screen can effectively conduct the heat that LED light generates,LED screen is avoided to be closed after a period of operation since temperature is excessively high,Improve the practicability of existing LED screen.
Description
Technical field
The utility model is related to LED relevant devices field, more particularly to a kind of good heat dissipation effect has automatic cleaning work(
The intelligent LED screen of energy.
Background technology
LED screen is a kind of flat-panel monitor, is made of LED module panel small one by one, be mainly used for show word,
The equipment of the various information such as image, video, video signal, but the efficiency that the electric energy that is consumed of LED light is converted into luminous energy only has
30% or so, other energy are then converted into thermal energy, and therefore, LED screen is easily generated heat.
But existing LED screen generally can not effectively conduct the heat that LED light generates so that LED screen
It is closed after a period of operation since temperature is excessively high, greatly reduces the practicability of existing LED screen, moreover,
Since LED light is exposed in air, dust is easily accumulated on surface so that the light intensity decreasing for the light that LED light is sent out, and it is existing
LED screen does not have automatic cleaning function so that existing LED screen needs manually to clean in use for some time, time-consuming to take
Power.
Utility model content
The technical problems to be solved in the utility model is：For overcome the deficiencies in the prior art, a kind of heat dissipation effect is provided
The good intelligent LED screen with automatic cleaning function.
Technical solution adopted by the utility model to solve its technical problems is：A kind of good heat dissipation effect has automatically clearly
Wash the intelligent LED screen of function, including bottom plate, LED display, top plate, flushing cisterns, heat dissipation tank and wiper mechanism, the bottom plate
It is fixed on the lower section of LED display, the top plate is fixed on the top of LED display, and the flushing cisterns is fixed on LED display
Side, the heat dissipation tank is fixed between bottom plate and top plate, and cooling mechanism is equipped in the heat dissipation tank；
The wiper mechanism includes rinsing unit and brush scrubbing unit, and the rinsing unit is arranged in flushing cisterns, the brush
Unit is washed to be arranged in top plate；
The rinsing unit includes first motor, driving wheel, fixed pulley, fixed rope, sliding block, spring, fixed block and at least
Two sparge pipes, the first motor and fixed pulley are each attached to the bottom in flushing cisterns, and the first motor is passed with driving wheel
Dynamic connection, on the drive wheel, the other end of the fixed rope bypasses fixed pulley, the fixed rope for one end setting of the fixed rope
It is fixedly connected with a slide block, the spring is arranged in the top of sliding block, and one end of the spring is fixed on the top in flushing cisterns, institute
The other end for stating spring is fixedly connected with a slide block, and the spring is in tensional state, and the fixed block is fixed on the close of sliding block
The side of LED display, each sparge pipe are evenly distributed on the side of the close LED display of fixed block；
The brush scrubbing unit includes drive component, movable block and cleaning rod, and the driving component is sequentially connected with movable block,
Third motor is equipped in the movable block, the third motor is sequentially connected with cleaning rod, the close movable block of the cleaning rod
Side be equipped with hairbrush；
The cooling mechanism includes endothermic box, air inlet, heat exchanger tube, heat-dissipating pipe, air exhauster, air inlet pipe, nozzle and several
Heat conducting pipe, the endothermic box are arranged between LED display and heat dissipation tank, and the heat conducting bar is evenly distributed on the close of endothermic box
The side of heat dissipation tank, the heat conducting pipe are connected to endothermic box, and the both ends of the heat exchanger tube are connected to the both ends of heat-dissipating pipe respectively, institute
The bottom that air exhauster is fixed in heat dissipation tank is stated, one end of the air exhauster is connected to by air inlet with the external of heat dissipation tank, institute
The other end for stating air exhauster is connected to air inlet pipe, and the air inlet pipe is connected to nozzle, and the nozzle setting is in heat-dissipating pipe and heat exchange
Between pipe.
Preferably, in order to avoid sewage direct emission pollutes environment, water tank is equipped in the bottom plate.
Preferably, influencing flushing effect in order to avoid being shaken due to sliding block, guide rod, institute are equipped in the flushing cisterns
The top and bottom end for stating guide rod are fixedly connected with the inner wall of flushing cisterns, and the guide rod passes through sliding block.
Preferably, in order to enable cleaning rod can keep vertical in cleaning, the movable block is equipped with limiting plate.
Preferably, in order to realize that cleaning function of the cleaning rod to LED display, the driving component include the second electricity
Machine, gear and rack, second motor are fixedly connected with gear, the wheel and rack engagement, the rack and movable block
It is fixedly connected.
Preferably, making air exhauster damage in order to avoid entering air exhauster due to foreign matter, it is equipped in the air inlet
Filter screen.
Preferably, in order to enhance heat dissipation effect, the heat-dissipating pipe is equipped with several cooling fins, and the cooling fin uniformly divides
Cloth is on heat-dissipating pipe.
Preferably, in order to enhance heat dissipation effect, the shape of the heat exchanger tube is S types.
Preferably, in order to enhance heat dissipation effect, the nozzle is shower nozzle.
Preferably, in order to extend the service life of first motor, the second motor and third motor, the first motor,
Second motor and third motor are servo motor.
The utility model has the beneficial effects that the intelligent LED screen with automatic cleaning function of the good heat dissipation effect, leads to
Over cleaning mechanism can clean up the dust accumulated on LED display surface, without artificial cleaning, save cleaning at
This, compared with traditional wiper mechanism, the cleaning speed of the wiper mechanism is very fast, and cleaning performance is preferable, moreover, by dissipating
Heat engine structure, the intelligent LED screen can effectively conduct the heat that LED light generates, and avoid LED screen in one section of work
It is closed after time since temperature is excessively high, improves the practicability of existing LED screen, it, should compared with traditional cooling mechanism
Faster, heat dissipation effect is more preferable for the radiating rate of cooling mechanism.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of the intelligent LED screen with automatic cleaning function of the good heat dissipation effect of the utility model
Figure；
Fig. 2 is the rinsing unit of the intelligent LED screen with automatic cleaning function of the good heat dissipation effect of the utility model
Structural schematic diagram；
Fig. 3 is the heat dissipation tank of the intelligent LED screen with automatic cleaning function of the good heat dissipation effect of the utility model, bottom
The attachment structure schematic diagram of plate, LED display, brush scrubbing unit and top plate；
Fig. 4 is the brush scrubbing unit of the intelligent LED screen with automatic cleaning function of the good heat dissipation effect of the utility model
Structural schematic diagram；
Fig. 5 is the cooling mechanism of the intelligent LED screen with automatic cleaning function of the good heat dissipation effect of the utility model
Structural schematic diagram；
In figure：1. bottom plate, 2.LED display screens, 3. top plates, 4. flushing cisterns, 5. first motors, 6. driving wheels, 7. fixed pulleys,
8. fixed rope, 9. guide rods, 10. sliding blocks, 11. springs, 12. fixed blocks, 13. sparge pipes, 14. heat dissipation tanks, 15. water tanks, 16.
Endothermic box, 17. second motors, 18. gears, 19. racks, 20. movable blocks, 21. third motors, 22. cleaning rods, 23. limiting plates,
24. heat conducting pipe, 25. heat exchanger tubes, 26. heat-dissipating pipes, 27. cooling fins, 28. air exhausters, 29. air inlet pipe, 30. nozzles, 31. air inlets
Mouthful, 32. filter screens.
Specific implementation mode
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows composition related with the utility model.
As shown in Figure 1, a kind of intelligent LED screen with automatic cleaning function of good heat dissipation effect, including bottom plate 1, LED
Display screen 2, top plate 3, flushing cisterns 4, heat dissipation tank 14 and wiper mechanism, the bottom plate 1 is fixed on the lower section of LED display 2, described
Top plate 3 is fixed on the top of LED display 2, and the flushing cisterns 4 is fixed on the side of LED display 2, and the heat dissipation tank 14 is solid
It is scheduled between bottom plate 1 and top plate 3, cooling mechanism is equipped in the heat dissipation tank 14；
By wiper mechanism, which can clean up the dust accumulated on 2 surface of LED display, nothing
It need to manually clean, save cleaning cost, compared with traditional wiper mechanism, the cleaning speed of the wiper mechanism is very fast, cleaning
Effect is preferable, and moreover, by cooling mechanism, which can effectively transfer out the heat that LED light generates
It goes, LED screen is avoided to be closed after a period of operation since temperature is excessively high, improve the practicability of existing LED screen,
Compared with traditional cooling mechanism, faster, heat dissipation effect is more preferable for the radiating rate of the cooling mechanism.
The wiper mechanism includes rinsing unit and brush scrubbing unit, and the rinsing unit is arranged in flushing cisterns 4, the brush
Unit is washed to be arranged in top plate 3；
As shown in Fig. 2, the rinsing unit includes first motor 5, driving wheel 6, fixed pulley 7, fixed rope 8, sliding block 10, bullet
Spring 11, fixed block 12 and at least two sparge pipes 13, the first motor 5 and fixed pulley 7 are each attached to the bottom in flushing cisterns 4
Portion, the first motor 5 are sequentially connected with driving wheel 6, and one end of the fixed rope 8 is arranged on driving wheel 6, the fixed rope
8 other end bypasses fixed pulley 7, and the fixed rope 8 is fixedly connected with sliding block 10, and the spring 11 is arranged in the upper of sliding block 10
Side, one end of the spring 11 are fixed on the top in flushing cisterns 4, and the other end of the spring 11 is fixedly connected with sliding block 10,
The spring 11 is in tensional state, and the fixed block 12 is fixed on the side of the close LED display 2 of sliding block 10, each to spray water
Pipe 13 is evenly distributed on the side of the close LED display 2 of fixed block 12；
It is placed with cleaning agent in flushing cisterns 4.First motor 5 drives driving wheel 6 to rotate first, passes through fixed pulley 7 and fixed rope 8
So that sliding block 10 moves down, the sparge pipe 13 on fixed block 12 and fixed block 12 is allowed to move down, then due at spring 11
In tensional state, spring 11 pulls up fixed block 12 so that sparge pipe 13 moves up, to which cleaning agent is sprayed onto LED
On screen 2.
As shown in Figure 3-4, the brush scrubbing unit includes drive component, movable block 20 and cleaning rod 22, the driving component
It is sequentially connected with movable block 20, third motor 21 is equipped in the movable block 20, the third motor 21 is driven with cleaning rod 22
The side of connection, the close movable block 20 of the cleaning rod 22 is equipped with hairbrush；
Third motor 21 drives cleaning rod 22 to rotate so that and cleaning rod 22 is vertical, and drive component drives movable block 20 to move,
Cleaning rod 22 is driven to move back and forth, to clean up the dust on LED display 2.
The cooling mechanism as shown in Figure 5 includes endothermic box 16, air inlet 31, heat exchanger tube 25, heat-dissipating pipe 26, air exhauster
28, air inlet pipe 29, nozzle 30 and several heat conducting pipes 24, the endothermic box 16 are arranged between LED display 2 and heat dissipation tank 14,
The heat conducting bar is evenly distributed on the side of the close heat dissipation tank 14 of endothermic box 16, and the heat conducting pipe 24 is connected to endothermic box 16,
The both ends of the heat exchanger tube 25 are connected to the both ends of heat-dissipating pipe 26 respectively, and the air exhauster 28 is fixed on the bottom in heat dissipation tank 14
Portion, one end of the air exhauster 28 be connected tos by air inlet 31 and the external of heat dissipation tank 14, the other end of the air exhauster 28 and
Air inlet pipe 29 is connected to, and the air inlet pipe 29 is connected to nozzle 30, and the nozzle 30 is arranged between heat-dissipating pipe 26 and heat exchanger tube 25.
The heat of heat conducting pipe 24 on endothermic box 16 is inhaled the heat absorption of LED display 2, heat-dissipating pipe 26 by endothermic box 16
It receives, cold air is pumped into air inlet pipe 29 by air exhauster 28 by air inlet 31, and cold air is made to be sprayed onto heat-dissipating pipe 26 from nozzle 30
On cooling fin 27, to make heat-dissipating pipe 26 and cooling fin 27 cool down.
Preferably, in order to avoid sewage direct emission pollutes environment, water tank 15 is equipped in the bottom plate 1.Clean LED
The sewage that display screen 2 generates can be stored in water tank 15, to avoid sewage direct emission from polluting environment.
Preferably, influencing flushing effect in order to avoid being shaken due to sliding block 10, guide rod is equipped in the flushing cisterns 4
9, the top and bottom end of the guide rod 9 are fixedly connected with the inner wall of flushing cisterns 4, and the guide rod 9 passes through sliding block 10.
Preferably, in order to enable cleaning rod 22 can keep vertical in cleaning, the movable block 20 is equipped with limit
Plate 23.Limiting plate 23 will not be rotated when cleaning rod 22 can be allowed to be produced out of top plate 3 excessively, so that cleaning rod 22 is cleaning
When can keep vertical.
Preferably, in order to realize that cleaning function of the cleaning rod 22 to LED display 2, the driving component include second
Motor 17, gear 18 and rack 19, second motor 17 are fixedly connected with gear 18, and the gear 18 is engaged with rack 19,
The rack 19 is fixedly connected with movable block 20.Second motor 17 drives gear 18 to rotate, and band carry-over bar 19 moves back and forth, to
The cleaning rod 22 in vertical state is set to clean up the dust on 2 surface of LED display.
Preferably, so that air exhauster 28 damages in order to avoid entering air exhauster 28 due to foreign matter, the air inlet 31
It is interior to be equipped with filter screen 32.
Preferably, in order to enhance heat dissipation effect, the heat-dissipating pipe 26 is equipped with several cooling fins 27, the cooling fin 27
It is evenly distributed on heat-dissipating pipe 26.Cooling fin 27 can increase the contact area of heat-dissipating pipe 26 and cold air, improve heat-dissipating pipe
26 radiating rate, to enhance heat dissipation effect.
Preferably, in order to enhance heat dissipation effect, the shape of the heat exchanger tube 25 is S types.The shape of heat exchanger tube 25 is S types
Heat exchanger tube 25 and the contact area of heat conducting pipe 24 can be made to increase, improve the radiating rate of heat conducting pipe 24, to enhance heat dissipation
Effect.
Preferably, in order to enhance heat dissipation effect, the nozzle 30 is shower nozzle.Nozzle 30, which is shower nozzle, can not only increase
The contact area of big heat-dissipating pipe 26 and cold air, and the flow velocity of cold air can be increased, improve heat-dissipating pipe 26 and cold air
Between heat exchanger effectiveness, the radiating rate of heat-dissipating pipe 26 is improved, to enhance heat dissipation effect.
Preferably, in order to extend the service life of first motor 5, the second motor 17 and third motor 21, described first
Motor 5, the second motor 17 and third motor 21 are servo motor.
The operation principle of the intelligent LED screen with automatic cleaning function of the good heat dissipation effect：When wiper mechanism is run,
Brush scrubbing unit works, and first motor 5 drives driving wheel 6 to rotate first, by fixed pulley 7 and fixed rope 8 so that sliding block 10 is downward
It is mobile, allow the sparge pipe 13 on fixed block 12 and fixed block 12 to move down, then due to spring 11 is in tensional state, spring
11 pull up fixed block 12 so that and sparge pipe 13 moves up, to which cleaning agent is sprayed onto in LED screen 2, rinsing unit
Work, third motor 21 drive cleaning rod 22 to rotate so that cleaning rod 22 is vertical, and drive component drives movable block 20 to move, band
Dynamic cleaning rod 22 moves back and forth, to which the dust on LED display 2 be cleaned up, in addition, when cooling mechanism is run, heat absorption
Case 16 is by the heat absorption of LED display 2, and heat-dissipating pipe 26 is by the heat absorption of the heat conducting pipe 24 on endothermic box 16, air exhauster 28
Cold air is pumped into air inlet pipe 29 by air inlet 31, and cold air is made to be sprayed onto heat-dissipating pipe 26 and cooling fin 27 from nozzle 30
On, to make heat-dissipating pipe 26 and cooling fin 27 cool down.
Compared with prior art, the intelligent LED screen with automatic cleaning function of the good heat dissipation effect, passes through cleaning machine
Structure can clean up the dust accumulated on 2 surface of LED display, without artificial cleaning, cleaning cost be saved, with biography
The wiper mechanism of system is compared, and the cleaning speed of the wiper mechanism is very fast, and cleaning performance is preferable, moreover, by cooling mechanism,
The intelligent LED screen can effectively conduct the heat that LED light generates, and avoid LED screen after a period of operation
It is closed since temperature is excessively high, improves the practicability of existing LED screen, compared with traditional cooling mechanism, the heat dissipation machine
Faster, heat dissipation effect is more preferable for the radiating rate of structure.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments in the range of without departing from this item utility model technological thought completely.This item is real
It is not limited to the contents of the specification with novel technical scope, it is necessary to which its technology is determined according to right
Property range.
Claims (10)
1. a kind of intelligent LED screen with automatic cleaning function of good heat dissipation effect, which is characterized in that including bottom plate（1）、
LED display（2）, top plate（3）, flushing cisterns（4）, heat dissipation tank（14）And wiper mechanism, the bottom plate（1）LED is fixed on to show
Screen（2）Lower section, the top plate（3）It is fixed on LED display（2）Top, the flushing cisterns（4）It is fixed on LED display
（2）Side, the heat dissipation tank（14）It is fixed on bottom plate（1）With top plate（3）Between, the heat dissipation tank（14）It is interior to be equipped with heat dissipation machine
Structure；
The wiper mechanism includes rinsing unit and brush scrubbing unit, and the rinsing unit is arranged in flushing cisterns（4）It is interior, the scrub
Unit is arranged in top plate（3）It is interior；
The rinsing unit includes first motor（5）, driving wheel（6）, fixed pulley（7）, fixed rope（8）, sliding block（10）, spring
（11）, fixed block（12）With at least two sparge pipes（13）, the first motor（5）And fixed pulley（7）It is each attached to flushing cisterns
（4）Interior bottom, the first motor（5）With driving wheel（6）It is sequentially connected, the fixed rope（8）One end setting driving
Wheel（6）On, the fixed rope（8）The other end bypass fixed pulley（7）, the fixed rope（8）With sliding block（10）It is fixedly connected, institute
State spring（11）It is arranged in sliding block（10）Top, the spring（11）One end be fixed on flushing cisterns（4）Interior top, it is described
Spring（11）The other end and sliding block（10）It is fixedly connected, the spring（11）In tensional state, the fixed block（12）Gu
It is scheduled on sliding block（10）Close LED display（2）Side, each sparge pipe（13）It is evenly distributed on fixed block（12）It is close
LED display（2）Side；
The brush scrubbing unit includes drive component, movable block（20）And cleaning rod（22）, the driving component and movable block（20）
It is sequentially connected, the movable block（20）It is interior to be equipped with third motor（21）, the third motor（21）With cleaning rod（22）Transmission connects
It connects, the cleaning rod（22）Close movable block（20）Side be equipped with hairbrush；
The cooling mechanism includes endothermic box（16）, air inlet（31）, heat exchanger tube（25）, heat-dissipating pipe（26）, air exhauster（28）, into
Tracheae（29）, nozzle（30）With several heat conducting pipes（24）, the endothermic box（16）It is arranged in LED display（2）With heat dissipation tank
（14）Between, the heat conducting bar is evenly distributed on endothermic box（16）Close heat dissipation tank（14）Side, the heat conducting pipe（24）
With endothermic box（16）Connection, the heat exchanger tube（25）Both ends respectively with heat-dissipating pipe（26）Both ends connection, the air exhauster
（28）It is fixed on heat dissipation tank（14）Interior bottom, the air exhauster（28）One end pass through air inlet（31）With heat dissipation tank（14）'s
Outside connection, the air exhauster（28）The other end and air inlet pipe（29）Connection, the air inlet pipe（29）With nozzle（30）Connection,
The nozzle（30）It is arranged in heat-dissipating pipe（26）With heat exchanger tube（25）Between.
2. the intelligent LED screen with automatic cleaning function of good heat dissipation effect as described in claim 1, which is characterized in that
The bottom plate（1）It is interior to be equipped with water tank（15）.
3. the intelligent LED screen with automatic cleaning function of good heat dissipation effect as described in claim 1, which is characterized in that
The flushing cisterns（4）It is interior to be equipped with guide rod（9）, the guide rod（9）Top and bottom end and flushing cisterns（4）Inner wall fix
Connection, the guide rod（9）Across sliding block（10）.
4. the intelligent LED screen with automatic cleaning function of good heat dissipation effect as described in claim 1, which is characterized in that
The movable block（20）It is equipped with limiting plate（23）.
5. the intelligent LED screen with automatic cleaning function of good heat dissipation effect as described in claim 1, which is characterized in that
The driving component includes the second motor（17）, gear（18）And rack（19）, second motor（17）With gear（18）Gu
Fixed connection, the gear（18）With rack（19）Engagement, the rack（19）With movable block（20）It is fixedly connected.
6. the intelligent LED screen with automatic cleaning function of good heat dissipation effect as described in claim 1, which is characterized in that
The air inlet（31）It is interior to be equipped with filter screen（32）.
7. the intelligent LED screen with automatic cleaning function of good heat dissipation effect as described in claim 1, which is characterized in that
The heat-dissipating pipe（26）It is equipped with several cooling fins（27）, the cooling fin（27）It is evenly distributed on heat-dissipating pipe（26）On.
8. the intelligent LED screen with automatic cleaning function of good heat dissipation effect as described in claim 1, which is characterized in that
The heat exchanger tube（25）Shape be S types.
9. the intelligent LED screen with automatic cleaning function of good heat dissipation effect as described in claim 1, which is characterized in that
The nozzle（30）For shower nozzle.
10. the intelligent LED screen with automatic cleaning function of good heat dissipation effect as described in claim 1, which is characterized in that
The first motor（5）, the second motor（17）With third motor（21）It is servo motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721756141.1U CN207947010U (en) | 2017-12-15 | 2017-12-15 | A kind of intelligent LED screen with automatic cleaning function of good heat dissipation effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721756141.1U CN207947010U (en) | 2017-12-15 | 2017-12-15 | A kind of intelligent LED screen with automatic cleaning function of good heat dissipation effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207947010U true CN207947010U (en) | 2018-10-09 |
Family
ID=63704078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721756141.1U Expired - Fee Related CN207947010U (en) | 2017-12-15 | 2017-12-15 | A kind of intelligent LED screen with automatic cleaning function of good heat dissipation effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207947010U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781828A (en) * | 2019-01-23 | 2019-05-21 | 李静娴 | A kind of mass spectrograph for negative ions repercussion study |
-
2017
- 2017-12-15 CN CN201721756141.1U patent/CN207947010U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781828A (en) * | 2019-01-23 | 2019-05-21 | 李静娴 | A kind of mass spectrograph for negative ions repercussion study |
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| GR01 | Patent grant | ||
| 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: 20181009 Termination date: 20201215 |