CN108538212A - A kind of led display screens - Google Patents
A kind of led display screens Download PDFInfo
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- CN108538212A CN108538212A CN201810556895.5A CN201810556895A CN108538212A CN 108538212 A CN108538212 A CN 108538212A CN 201810556895 A CN201810556895 A CN 201810556895A CN 108538212 A CN108538212 A CN 108538212A
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- display screen
- wall
- box body
- slide plate
- screen box
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
- H05K7/20972—Forced ventilation, e.g. on heat dissipaters coupled to components
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The present invention relates to display screen technology field, especially a kind of led display screens, including display screen box body set slide plate chamber, airbag chamber and plunger shaft in the tank wall of display screen box body；Slide plate intracavitary is slidably connected slide plate, and intercommunicating pore is set on slide plate；Ventilation hole is set on the tank wall of display screen box body；Airbag chamber is connected to slide plate chamber；Air bag is set in airbag chamber, and the blowhole being connected to air bag is set on the outer wall of display screen box body；Be slidably connected pushing plate in airbag chamber；Be slidably connected piston in plunger shaft, and push rod is fixed between piston and pushing plate；Return unit is set between piston and the cavity wall of plunger shaft；Tank for coolant is set on display screen box body；Metallic plate is set on the inner wall of display screen box body；Cooling passage is set in metallic plate, the lower part of plunger shaft is connected to by cooling passage with tank for coolant；Inlet tube is equipped between the lower part and tank for coolant of plunger shaft.This programme solves, and since venthole is in the state opened for a long time, external dust is easy to enter the problem inside display screen box body from venthole.
Description
Technical field
The present invention relates to display screen technology fields, and in particular to a kind of led display screens.
Background technology
With the continuous progress of science, electronics industry emerges rapidly, and wherein display screen technology is also fast-developing, and then applies
To everywhere in life；It is that a kind of being shown to certain electronic document on screen by specific transmission device is reflected again
To the show tools of human eye.
Led display screens are common display screens, and existing structure is that on circuit boards by LED lamp arrangement, circuit board is put into
In display screen box body；Then screen cover will be shown again in the open opening of display screen box body, and LED lamp is located under display screen
Side.When display font, controller controls corresponding LED lamp and opens, and the LED lamp lighted constitutes the content for needing to show；And
Other LED lamps are directly closed.Led display screens are often placed on open air in life, be mainly used for doing propaganda or are applied to
On various road signs, brightness and colorfulness are higher, and identification is also high, attract eyeball.But led display screens are when in use, LED lamp
The heat distributed is difficult to distribute, and easy tos produce failure or overheat and leads to other safety problems；In order to solve led display screens
Heat dissipation problem, notification number are that the Chinese invention patent of CN207233307U discloses a kind of heat dissipation knot of P4LED outdoor display screens
Structure, P4LED outdoor display screens include display screen box body, and the bottom of display screen box body is equipped with the ventilation led to inside display screen box body
Hole, the upper end of display screen box body are internally provided with axial flow blower, and the two sides of display screen box body are respectively equipped with the shutter of ventilation, and hundred
Leaf window corresponds to axial flow blower setting.
There are following technical problems for above-mentioned patent：Above-mentioned patent is same by the way that venthole is arranged in the bottom of display screen box body
When axial flow blower is set inside the upper end of display screen box body, and coordinate in the both sides of display screen box body setting shutter, when
Display screen is empty as equipment is generated heat using display screen in use, air enters from the venthole of bottom inside display screen box body
Gas fever rises, and hot-air is discharged from the shutter of two sides for axial flow blower work, and the hot-air after discharge is cooled decline, into
And form hot and cold air cycle；Although the structure of the shutter of upper end side reduces the entrance such as dust and rainwater to a certain extent
Inside display screen, but the venthole of display screen box body bottom is in the state opened for a long time, and dust is still easily accessible aobvious
Display screen box house.
Invention content
The purpose of the present invention is to provide a kind of led display screens, solve in the prior art, since venthole is in long-term
The state of opening, external dust are easy to enter the problem inside display screen box body from venthole.
In order to achieve the above objectives, base case of the invention is as follows：
A kind of led display screens, including display screen box body, the tank wall of display screen box body is interior to be equipped with slide plate chamber, airbag chamber and work
Fill in chamber；Slide plate intracavitary slidably connects slide plate, and slide plate is equipped with intercommunicating pore；The tank wall of display screen box body is equipped with across slide plate chamber
Ventilation hole, and intercommunicating pore can be connected to ventilation hole；
Airbag chamber is located at the lower section of slide plate chamber, and airbag chamber is connected to slide plate chamber；Air bag, display screen case are equipped in airbag chamber
The outer wall of body is equipped with blowhole, and blowhole is connected to air bag；
Pushing plate is slidably connected in airbag chamber, and pushing plate is located at the lower section of air bag；Work is slidably connected in plunger shaft
Plug, is fixed with push rod between piston and pushing plate；The return unit for piston reset is equipped between piston and the cavity wall of plunger shaft；
Display screen box body is equipped with tank for coolant；The inner wall of display screen box body is equipped with metallic plate；It is equipped in metallic plate cold
But liquid channel, one end of cooling passage are connected to the lower part of plunger shaft, and the other end of cooling passage is connected to tank for coolant；
Cooling passage is equipped with out liquid check valve；It is equipped with inlet tube between the lower part and tank for coolant of plunger shaft, and is set on inlet tube
There is feed liquor check valve.
This programme generate advantageous effect be：
1, the metallic plate in this programme can transmit the heat in display screen box body so that heat is quickly passed to
In coolant liquid in cooling passage, and then realize to the cooling-down effect inside display screen box body.
2, the state of the ventilation hole in this programme has two kinds of opening and closing；It is specific as follows：
Ventilation bore closure：When ventilation bore closure, the intercommunicating pore on slide plate is not to be connected to ventilation hole correspondence；It is outer at this time
The air and dust on boundary etc. can not be entered from ventilation hole in display screen box body.
Ventilation hole is opened：When outside generates wind, wind herein can be extraneous natural wind, can also be using blowing
The wind that machine is blown；Wind enters in blowhole, then into air bag；Air bag expands, and then slide plate is pushed up upwards, waits for slide plate
On intercommunicating pore it is corresponding with ventilation hole when, extraneous wind can enter inside display screen box body, and then blow inside
Wind accelerates the gas flowing inside display screen box body, realizes the purpose of heat dissipation.
While air bag expands, the pushing plate of lower section can also be pushed to move downward, pushing plate pushes push rod, and push rod, which pushes, lives
It fills in, the coolant liquid below piston press piston, so that the coolant liquid in plunger shaft enters in cooling passage, coolant liquid
It is flowed in cooling passage, achievees the effect that recycle coolant liquid so that coolant liquid fast cooling is also allowed for metallic plate
Cooling.
To sum up, the ventilation hole in this programme is not to be chronically at opening state, compared with the prior art, extraneous ash
Dirt etc. will not be entered from ventilation hole inside display screen box body always.
Air bag in this programme not only realizes the opening of ventilation hole when being expanded by wind, and display screen is blown into convenient for wind
In babinet, fast cooling is carried out to display screen box body inside.The flowing of coolant liquid is also achieved, and then convenient for display screen box body
Inside is preferably cooled down.
Preferred embodiment one：It is advanced optimized as to base case, air bag is equipped with leakage hole, is equipped with out at leakage hole
Tracheae；It is equipped with power cavity in the tank wall of display screen box body, the power for opening escape pipe under the promotion of slide plate is equipped in power cavity
Part；It is communicated with elastic foldable pipe on escape pipe, communicating pipe, and the upper end of communicating pipe and elastic foldable Guan Lian are equipped in pushing plate
Logical, the lower end of communicating pipe is connected to the lower part of plunger shaft.
The setting of leakage hole and escape pipe, primarily to further realizing flowing and the mixing effect of coolant liquid；Tool
Body principle is：When air bag expands and slide plate is pushed up certain position, slide plate makes force piece open escape pipe；
At this point, when wind is blown into air bag again, the gas in air bag can enter in escape pipe；Then into elastic foldable pipe,
It enters finally into the plunger shaft below piston；Realize that the air-blowing to the coolant liquid below piston, gas can be logical into coolant liquid
In road, the mixing effect that the flow effect of the coolant liquid in cooling passage and air-flow generate is realized.
In addition, the setting of elastic foldable pipe expands mainly so that this section of pipe is the hose that can be folded convenient for air bag
When, which thinks to fold in the extruding of air bag, will not block the expansion of air bag.
Preferred embodiment two：As advanced optimizing to preferred embodiment one, escape pipe includes outlet tube body and intercepter plate；
The inner wall of outlet tube body is equipped with annular groove, is equipped with intercepter plate in annular groove, is equipped between intercepter plate and the bottom wall of annular groove
Return springs for the sheet reset that shuts off；And the diameter of intercepter plate is less than the diameter of annular groove.
The on or off of escape pipe is simply realized in the setting of intercepter plate and annular groove very much；Concrete principle is to reset bullet
Property part under the action of, the upper surface of intercepter plate is the upper wall for resisting annular groove, at this point, escape pipe close；When intercepter plate is pushed away
It is dynamic when leaving the upper wall of annular groove, since the diameter of intercepter plate is less than the diameter of annular groove, so, the outer wall of intercepter plate is will not
It is contacted with the inner wall of annular groove；A channel is formd between intercepter plate and the inner wall of annular groove, and then will be above intercepter plate
Escape pipe be connected to the escape pipe below intercepter plate.
Preferred embodiment three：As advanced optimizing to preferred embodiment two, force piece include the first rack, the second rack,
Gear and pressing lever；First rack and the second rack are slidably connected with the inner wall of power cavity, and the inner wall of gear and power cavity turns
Dynamic connection, and the first rack and the second rack are engaged on the both sides of gear respectively；First rack is fixed on the side of slide plate
There is protrusion；Slide plate includes skateboard body and the boss that is fixed in skateboard body, and boss can push protrusion to move upwards；First
The elastic component for the first tooth bar resets is equipped between rack and the inner wall of power cavity；Pressing lever is fixedly connected on the second rack
Lower end, pressing lever are entered across blowhole in air bag, and the one end of pressing lever far from the second rack is located at the top of intercepter plate.
The simple promotion realized to intercepter plate, so that escape pipe is opened.Concrete principle is：When air bag expand,
Slide plate moves up to intercommunicating pore and is connected to ventilation hole；If gas is constantly blown into air bag again, the boss on slide plate can support
The firmly lower surface of the protrusion on the first rack, and then protrusion is pushed to move upwards；First rack moves upwards, and band moving gear revolves
Turn, the second rack moves downward, so that pressing lever also moves downward, the end of pressing lever is extend into escape pipe, and will
Intercepter plate pushes down on；At this point, the escape pipe above intercepter plate is connected to the escape pipe below intercepter plate.Gas in air bag can be according to
It is secondary to flow through escape pipe, elastic foldable pipe and communicating pipe, and then the lower part of plunger shaft is entered, it enters back into cooling passage.
Preferred embodiment four：As advanced optimizing to base case or preferred embodiment three, tank for coolant include babinet and
Case lid, babinet are equipped with liquid inlet and air vent；Case lid lid closes at liquid inlet；Air vent is located at the top of babinet.
The setting of liquid inlet is primarily to facilitate coolant liquid and is added in tank for coolant；The setting of case lid, primarily to just
In the closing of liquid inlet.The setting of air vent, primarily to convenient for the outflow of the gas in tank for coolant.
Preferred embodiment five：As advanced optimizing to preferred embodiment four, the hole of blowhole display screen box body without leave it is outer
Wall reduces towards the direction of air bag.It is further ensured that gas can be good at entering in air bag.
Description of the drawings
Fig. 1 is a kind of front view of the embodiment one of led display screens of the present invention；
Fig. 2 is the internal structure schematic diagram of box wall on the right side of display screen box body in Fig. 1；
Fig. 3 is the enlarged drawing of A in Fig. 2；
Fig. 4 is the internal structure schematic diagram of airbag chamber and plunger shaft in Fig. 3；
Fig. 5 is the enlarged drawing of B in Fig. 4；
Fig. 6 is the structural schematic diagram of the case lid of tank for coolant and air vent in Fig. 2；
Fig. 7 is the structural schematic diagram at air vent in a kind of embodiment two of led display screens of the present invention.
Specific implementation mode
Below by specific implementation mode, the present invention is described in further detail：
Reference numeral in Figure of description includes：Display screen box body 1, slide plate chamber 11, slide plate 111, skateboard body 1111,
Boss 1112, airbag chamber 12, air bag 121, leakage hole 1211, escape pipe 1212, outlet tube body 12121, is cut intercommunicating pore 1113
Flowing plate 12122, return springs 12124, elastic foldable pipe 1213, pushing plate 122, communicating pipe 1221, is lived at annular groove 12123
Fill in chamber 13, piston 131, push rod 132, return unit 133, ventilation hole 14, blowhole 15, tank for coolant 2, babinet 21, air vent
211, case lid 22, inlet tube 23, metallic plate 3, cooling passage 31, power cavity 4, the first rack 41, protrusion 411, elastic component
412, the second rack 42, gear 43, pressing lever 44, T shapes plug 5.
Embodiment is basic as shown in attached drawing 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7：
A kind of led display screens specifically combine Fig. 1, Fig. 2 and Fig. 3, including display screen box body 1, the tank wall of display screen box body 1
It is interior to be equipped with slide plate chamber 11, airbag chamber 12 and plunger shaft 13；Slide plate 111 is slidably connected in slide plate chamber 11, slide plate 111, which is equipped with, to be connected
Through-hole 1113；The tank wall of display screen box body 1 is equipped with the ventilation hole 14 across slide plate chamber 11, and intercommunicating pore 1113 can be with ventilation hole
14 connections.
Airbag chamber 12 is located at the lower section of slide plate chamber 11, and airbag chamber 12 is connected to slide plate chamber 11；Gas is equipped in airbag chamber 12
The outer wall of capsule 121, display screen box body 1 is equipped with blowhole 15, and specific such as Fig. 4, the cavity wall of airbag chamber 12 is equipped with and blowhole
The connecting hole of 15 connections, the open edge of air bag 121 are fixedly connected on connection hole.
It is specifically shown in Fig. 4, pushing plate 122 is slidably connected in airbag chamber 12, and pushing plate 122 is located at the lower section of air bag 121；
Plunger shaft 13 is located at the lower section (being specifically shown in Fig. 3) of airbag chamber 12, slidably connects piston 131 in plunger shaft 13, piston 131 with push away
Push rod 132 is fixed between movable plate 122；It is equipped between the upper surface of piston 131 and the upper cavity wall of plunger shaft 13 and is used for piston 131
The return unit 133 of reset.
Display screen box body 1 is equipped with tank for coolant 2；Tank for coolant 2 include babinet 21 and case lid 22, babinet 21 be equipped with into
Liquid mouth and air vent 211, are specifically shown in Fig. 6, and liquid inlet is located at the top surface of babinet 21；The lid of case lid 22 closes at liquid inlet, specifically connects
It is that case lid 22 is threadedly coupled with liquid inlet to connect mode.Air vent 211 is located on the side wall on 21 top of babinet.
It is specifically shown in Fig. 2, metallic plate 3 is fixed on the bottom wall of display screen box body 1, metallic plate 3 can be copper coin, silver plate, aluminium
Plate etc. one of them.Be equipped with cooling passage 31 in metallic plate 3, one end of cooling passage 31 extend to under plunger shaft 13
Portion is connected to.The other end of cooling passage 31 extends in Fig. 2 at the outer wall on 1 right side of display screen box body, and passes through a plastics
Pipeline is connected to tank for coolant 2.Cooling passage 31 is equipped with out liquid check valve；The lower part of plunger shaft 13 and tank for coolant 2 it
Between be equipped with inlet tube 23, and inlet tube 23 be equipped with feed liquor check valve.
In order to further realize flowing and the mixing effect of coolant liquid, leakage hole 1211, leakage hole are provided on air bag 121
Escape pipe 1212 is communicated at 1211；It is specifically shown in Fig. 5, escape pipe 1212 is located inside air bag 121；Escape pipe 1212 includes outlet
Tube body 12121 and intercepter plate 12122；The inner wall of outlet tube body 12121 is equipped with annular groove 12123, in annular groove 12123
It is equipped with equipped with intercepter plate 12122, between intercepter plate 12122 and the bottom wall of annular groove 12123 and is answered for what intercepter plate 12122 resetted
Position elastic component 12124；And the diameter of intercepter plate 12122 is less than the diameter of annular groove 12123.
It is equipped with power cavity 4 in the tank wall of display screen box body 1, is equipped in power cavity 4 and opens outlet under the promotion of slide plate 111
The force piece of pipe 1212.Elastic foldable pipe 1213 is communicated on escape pipe 1212, and elastic foldable pipe 1213, specially rubber are soft
Pipe or corrugated flexible hose.Communicating pipe 1221 is equipped in pushing plate 122, and the upper end of communicating pipe 1221 connects with elastic foldable pipe 1213
Logical, the lower end of communicating pipe 1221 is connected to the lower part of plunger shaft 13.
Escape pipe 1212 is opened under promotion in order to realize slide plate 111, specific setting is as follows：Such as Fig. 3, force piece includes the
One rack 41, the second rack 42, gear 43 and pressing lever 44；The inner wall of first rack 41 and the second rack 42 with power cavity 4
It is slidably connected, gear 43 and the inner wall of power cavity 4 are rotatablely connected, and the first rack 41 and the second rack 42 are engaged on gear respectively
43 both sides；First rack 41 is fixed with protrusion 411 on the side of slide plate 111；Slide plate 111 includes 1111 He of skateboard body
The boss 1112 being fixed in skateboard body 1111, and boss 1112 can push protrusion 411 to move upwards；First rack 41 with it is dynamic
The elastic component 412 resetted for the first rack 41 is equipped between the inner wall of power chamber 4；Pressing lever 44 is fixedly connected on the second rack 42
Lower end, pressing lever 44 is entered across blowhole 15 in air bag 121, and the one end of pressing lever 44 far from the second rack 42 is located at
The top of intercepter plate 12122.
The hole of blowhole 15 without leave display screen box body 1 outer wall towards air bag 121 direction reduce.It is further ensured that gas
It can be good at entering in air bag 121.
Return unit 133, elastic component 412 and return springs 12124 in this programme are spring.
In use, the state of ventilation hole 14 has two kinds of opening and closing, it is specific as follows：
Ventilation hole 14 is closed：When ventilation hole 14 is closed, the intercommunicating pore 1113 on slide plate 111 is not corresponded to ventilation hole 14
Connection；Extraneous air and dust etc. can not be entered from ventilation hole 14 in display screen box body 1 at this time.
Ventilation hole 14 is opened：When outside generates wind, wind herein can be extraneous natural wind, can also be using blowing
The wind that wind turbine is blown；Wind enters in blowhole 15, then into air bag 121；Air bag 121 expands, and then by slide plate 111
Top upwards, when waiting for that intercommunicating pore 1113 on slide plate 111 is corresponding with ventilation hole 14, extraneous wind can enter display screen box body
Inside 1, and then inside is blowed, accelerates the gas flowing inside display screen box body 1, realize the purpose of heat dissipation.
While air bag 121 expands, the pushing plate 122 of lower section can also be pushed to move downward, pushing plate 122 pushes push rod
132, push rod 132 pushes piston 131, the coolant liquid of 131 extrusion piston of piston, 131 lower section, so that cold in plunger shaft 13
But liquid enters in cooling passage 31, and coolant liquid flowing in cooling passage 31 is finally flowed back in tank for coolant 2, reached
To the effect of coolant liquid cycle so that coolant liquid fast cooling also allows for the cooling to metallic plate 3.
When there is no wind, the meeting of slide plate 111 extruding gasbag 121 under self gravitation effect, by the gas in air bag 121
It releases, so that 111 slide downward of slide plate so that intercommunicating pore 1113 and ventilation hole 14 are staggered.While air bag 121 is deflated,
Return unit 133 can make piston 131 move upwards reset, and the coolant liquid in tank for coolant 2 enters piston by inlet tube 23
In chamber 13.
To sum up, the air bag 121 in this programme not only realizes the opening of ventilation hole 14 when being expanded by wind, is convenient for wind
It is blown into display screen box body 1, fast cooling is carried out to 1 inside of display screen box body.The flowing of coolant liquid is also achieved, and then is convenient for
1 inside of display screen box body is preferably cooled down.
In addition, metallic plate 3 can also transmit the heat in display screen box body 1 in this programme so that the quick quilt of heat
It is transmitted in the coolant liquid in cooling passage 31, and then realizes to the cooling-down effect inside display screen box body 1.In order to further
Realize the flowing of coolant liquid and mixing effect in cooling passage 31；There are one gas leakage state, tools for the air bag 121 of this programme
Body is：When air bag 121 expands, slide plate 111 moves up to intercommunicating pore 1113 and is connected to ventilation hole 14；If gas is constantly blown again
Enter into air bag 121, air bag 121 continues to expand, and slide plate 111 moves upwards, and the boss 1112 on slide plate 111 can resist the first tooth
The lower surface of protrusion 411 on item 41, and then protrusion 411 is pushed to move upwards；First rack 41 moves upwards, band moving gear 43
Rotation, the second rack 42 moves downward, so that pressing lever 44 also moves downward, the end of pressing lever 44 extend into escape pipe
In 1212, and intercepter plate 12122 is pushed down on；When intercepter plate 12122 is pushed away from the upper wall of annular groove 12123, due to
The diameter of intercepter plate 12122 is less than the diameter inside the slot of annular groove 12123, so, the outer wall of intercepter plate 12122 is will not be with
The inner wall contact of annular groove 12123；A channel is formd between intercepter plate 12122 and the inner wall of annular groove 12123, in turn
The escape pipe 1212 of 12122 top of intercepter plate is connected to the escape pipe 1212 of 12122 lower section of intercepter plate；Gas in air bag 121
Know from experience followed by escape pipe 1212, elastic foldable pipe 1213 and communicating pipe 1221, and then enters the lower part of plunger shaft 13, then
It enters in cooling passage 31, realizes the air-blowing of the coolant liquid to 131 lower section of piston；In addition, gas can be logical into coolant liquid
In road 31, the mixing effect that the flow effect of the coolant liquid in cooling passage 31 and air-flow generate also is realized.
Embodiment two
The difference between this embodiment and the first embodiment lies in as shown in fig. 7, being equipped with the T that section is T shapes face at air vent 211
Shape plug 5；The wide head end of T shapes plug 5 is cylinder, and outside air vent 211.The narrow end of T shapes plug 5 is also cylinder, and is stretched into
In air vent 211.And the diameter of the narrow end of T shapes plug 5 is less than the aperture of air vent 211；The diameter of the wide head end of T shapes plug 5 is more than
The aperture of air vent 211.It is fixed with tension spring between the wide head end and the outer wall of tank for coolant 2 of T shapes plug 5.The setting of T shapes plug 5, it is main
If being entered in tank for coolant 2 by air vent 211 to reduce introduced contaminants.Since tension spring has centainly in its natural state
Thickness so that the wide head end of T shapes plug 5 will not be fitted on the outer surface of tank for coolant 2；Usually the gas in cooler bin can
It is flowed out by the gap.When the gas pressure in tank for coolant 2 is larger, gas can also push T shapes plug 5 open from inside to outside,
The above are merely the embodiment of the present invention, the common sense such as well known concrete structure and characteristic are not made excessively herein in scheme
Description.It should be pointed out that for those skilled in the art, without departing from the structure of the invention, can also make
Several modifications and improvements, these should also be considered as protection scope of the present invention, these all do not interfere with the effect that the present invention is implemented
And patent practicability.The scope of protection required by this application should be based on the content of the claims, specific in specification
The records such as embodiment can be used for explaining the content of claim.
Claims (6)
1. a kind of led display screens, including display screen box body, which is characterized in that be equipped with slide plate chamber, gas in the tank wall of display screen box body
Blister cavities and plunger shaft；Slide plate intracavitary slidably connects slide plate, and slide plate is equipped with intercommunicating pore；The tank wall of display screen box body is equipped with and wears
The ventilation hole of slide plate chamber is crossed, and intercommunicating pore can be connected to the ventilation hole；
The airbag chamber is located at the lower section of slide plate chamber, and airbag chamber is connected to slide plate chamber；Air bag, display screen case are equipped in airbag chamber
The outer wall of body is equipped with blowhole, and blowhole is connected to air bag；
Pushing plate is slidably connected in airbag chamber, and pushing plate is located at the lower section of the air bag；It is slidably connected in the plunger shaft
There is piston, push rod is fixed between piston and pushing plate；Answering for piston reset is equipped between piston and the cavity wall of plunger shaft
Position part；
The display screen box body is equipped with tank for coolant；The inner wall of display screen box body is equipped with metallic plate；It is equipped in metallic plate cold
But coolant liquid is equipped in liquid channel, tank for coolant and cooling passage；Under one end of cooling passage and the plunger shaft
Portion is connected to, and the other end of cooling passage is connected to the tank for coolant；Cooling passage is equipped with out liquid check valve；The work
Inlet tube is equipped between the lower part and tank for coolant of plug chamber, and inlet tube is equipped with feed liquor check valve.
2. a kind of led display screens according to claim 1, it is characterised in that：The air bag is equipped with leakage hole, leakage hole
Place is equipped with escape pipe；It is equipped with power cavity in the tank wall of the display screen box body, is equipped in power cavity and is opened under the promotion of slide plate
The force piece of escape pipe；It is communicated with elastic foldable pipe on the escape pipe, is equipped with communicating pipe in the pushing plate, and communicating pipe
Upper end is connected to the elastic foldable pipe, and the lower end of communicating pipe is connected to the lower part of plunger shaft.
3. a kind of led display screens according to claim 2, it is characterised in that：The escape pipe include outlet tube body and
Intercepter plate；The inner wall of outlet tube body is equipped with annular groove, and the intercepter plate, the bottom of intercepter plate and annular groove are equipped in annular groove
The return springs for the sheet reset that shuts off are equipped between wall；And the diameter of intercepter plate is less than the diameter of annular groove.
4. a kind of led display screens according to claim 3, it is characterised in that：The force piece includes the first rack, second
Rack, gear and pressing lever；First rack and the second rack are slidably connected with the inner wall of power cavity, the gear with it is dynamic
The inner wall of power chamber is rotatablely connected, and the first rack and the second rack are engaged on the both sides of the gear respectively；First rack is close
It is fixed with protrusion on the side of slide plate；The slide plate includes skateboard body and the boss that is fixed in skateboard body, and boss can
The protrusion is pushed to move upwards；The elasticity for the first tooth bar resets is equipped between first rack and the inner wall of power cavity
Part；The pressing lever is fixedly connected on the lower end of the second rack, and pressing lever is entered across blowhole in air bag, and pressing lever is remote
One end from the second rack is located at the top of the intercepter plate.
5. a kind of led display screens according to claim 1 or 4, it is characterised in that：The tank for coolant includes babinet and case
Lid, the babinet are equipped with liquid inlet and air vent；The case lid lid closes at liquid inlet；The air vent is located at the upper of babinet
Portion.
6. a kind of led display screens according to claim 5, it is characterised in that：The hole of blowhole display screen case without leave
The outer wall of body reduces towards the direction of air bag.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810556895.5A CN108538212B (en) | 2018-05-31 | 2018-05-31 | LED display screen |
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| CN201810556895.5A CN108538212B (en) | 2018-05-31 | 2018-05-31 | LED display screen |
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| CN108538212A true CN108538212A (en) | 2018-09-14 |
| CN108538212B CN108538212B (en) | 2023-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810556895.5A Active CN108538212B (en) | 2018-05-31 | 2018-05-31 | LED display screen |
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| CN114683693A (en) * | 2020-12-25 | 2022-07-01 | 精工爱普生株式会社 | Liquid ejecting apparatus |
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| CN108538212B (en) | 2023-08-25 |
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