CN108538212B - LED display screen - Google Patents
LED display screen Download PDFInfo
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- CN108538212B CN108538212B CN201810556895.5A CN201810556895A CN108538212B CN 108538212 B CN108538212 B CN 108538212B CN 201810556895 A CN201810556895 A CN 201810556895A CN 108538212 B CN108538212 B CN 108538212B
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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)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application relates to the technical field of display screens, in particular to an led display screen, which comprises a display screen box body, wherein a sliding plate cavity, an air bag cavity and a piston cavity are arranged in the wall of the display screen box body; the sliding plate cavity is in sliding connection with the sliding plate, and a communication hole is arranged on the sliding plate; the wall of the display screen box body is provided with a vent hole; the air bag cavity is communicated with the slide plate cavity; an air bag is arranged in the air bag cavity, and an air blowing hole communicated with the air bag is arranged on the outer wall of the display screen box body; the air bag cavity is connected with the pushing plate in a sliding way; the piston cavity is in sliding connection with a piston, and a push rod is fixed between the piston and the push plate; a reset piece is arranged between the piston and the cavity wall of the piston cavity; a cooling liquid tank is arranged on the display screen tank body; a metal plate is arranged on the inner wall of the display screen box body; a cooling liquid channel is arranged in the metal plate, and the cooling liquid channel communicates the lower part of the piston cavity with a cooling liquid tank; a liquid inlet pipe is arranged between the lower part of the piston cavity and the cooling liquid tank. The problem that outside dust easily enters into display screen box inside from the air vent has been solved because the air vent is in the state of long-term opening to this scheme.
Description
Technical Field
The application relates to the technical field of display screens, in particular to an led display screen.
Background
Along with the continuous progress of science, the electronic industry is rapidly growing, and the display screen technology is rapidly developed, so that the display screen technology is applied to various places in life; it is a display tool that displays certain electronic files on a screen through a specific transmission device and then reflects the electronic files to human eyes.
The led display screen is a common display screen, and the existing structure is that led lamps are arranged on a circuit board, and the circuit board is placed in a display screen box body; and then covering the display screen at the opening of the display screen box body, wherein the led lamp is positioned below the display screen. When the fonts are displayed, the controller controls the corresponding led lamps to be turned on, and the lighted led lamps can form the content to be displayed; and the other led lamps are turned off directly. In life, the led display screen is usually placed outdoors and is mainly used for propaganda or applied to various road signs, the brightness and the color degree are high, the identification degree is high, and eyeballs are attracted. However, when the led display screen is used, the heat emitted by the led lamp is difficult to emit, and faults or overheat are easy to occur, so that other safety problems are caused; in order to solve the heat dissipation problem of LED display screen, chinese patent publication number CN207233307U discloses a heat dissipation structure of outdoor display screen of P4LED, and outdoor display screen of P4LED includes the display screen box, and the bottom of display screen box is equipped with the air vent that leads to the inside of display screen box, and the inside axial fan that is equipped with of upper end of display screen box, the both sides limit of display screen box are equipped with the shutter of ventilation respectively, and the shutter corresponds the setting of axial fan.
The above patent has the following technical problems: according to the patent, through the arrangement of the vent holes at the bottom of the display screen box body and the arrangement of the axial flow fans in the upper end of the display screen box body, and the axial flow fans are matched with the shutters arranged on the two sides of the display screen box body, when the display screen is used, air enters the display screen box body from the vent holes at the bottom, and as the display screen heats up when the display screen is used, the air heats up and rises, the axial flow fans work to discharge hot air from the shutters on the two sides, and the discharged hot air is cooled down, so that cold and hot air circulation is formed; although the structure of the louver at the side edge of the upper end reduces the dust, rainwater and the like entering the display screen to a certain extent, the vent hole at the bottom of the display screen box body is in a long-term opened state, and dust still easily enters the display screen box body.
Disclosure of Invention
The application aims to provide a led display screen, which solves the problem that in the prior art, because the vent hole is in a long-term open state, external dust easily enters the inside of a display screen box body from the vent hole.
In order to achieve the above purpose, the basic scheme of the application is as follows:
a led display screen comprises a display screen box body, wherein a slide plate cavity, an air bag cavity and a piston cavity are arranged in the wall of the display screen box body; a sliding plate is connected in the sliding plate cavity in a sliding way, and a communication hole is arranged on the sliding plate; the wall of the display screen box body is provided with vent holes penetrating through the sliding plate cavity, and the communication holes can be communicated with the vent holes;
the air bag cavity is positioned below the slide plate cavity and is communicated with the slide plate cavity; an air bag is arranged in the air bag cavity, a blowing hole is formed in the outer wall of the display screen box body, and the blowing hole is communicated with the air bag;
a pushing plate is connected in the air bag cavity in a sliding way and is positioned below the air bag; a piston is connected in the piston cavity in a sliding way, and a push rod is fixed between the piston and the push plate; a reset piece for resetting the piston is arranged between the piston and the cavity wall of the piston cavity;
a cooling liquid tank is arranged on the display screen tank body; a metal plate is arranged on the inner wall of the display screen box body; a cooling liquid channel is arranged in the metal plate, one end of the cooling liquid channel is communicated with the lower part of the piston cavity, and the other end of the cooling liquid channel is communicated with a cooling liquid tank; a liquid outlet one-way valve is arranged on the cooling liquid channel; a liquid inlet pipe is arranged between the lower part of the piston cavity and the cooling liquid tank, and a liquid inlet one-way valve is arranged on the liquid inlet pipe.
The beneficial effect that this scheme produced is:
1. the metal sheet in this scheme can be to the heat transfer in the display screen box for in the heat was transmitted the coolant liquid in the coolant liquid passageway fast, and then the realization is to the inside cooling effect of display screen box.
2. The state of the vent hole in the scheme is opened and closed; the method comprises the following steps:
the vent hole is closed: when the vent hole is closed, the communication hole on the sliding plate is not correspondingly communicated with the vent hole; at this time, external air, dust and the like cannot enter the display screen box body from the vent hole.
The vent holes are opened: when wind is generated outside, the wind can be natural outside or blown by a blower; the wind enters the wind blowing hole and then enters the air bag; the gasbag inflation, and then upwards pushes up the slide, waits when the intercommunicating pore on the slide corresponds with the ventilation hole, and external wind can enter into display screen box inside, and then to inside blow for the inside gas flow of display screen box realizes radiating purpose.
When the air bag expands, the pushing plate below the air bag can be pushed to move downwards, the pushing plate pushes the push rod, the push rod pushes the piston, the piston extrudes cooling liquid below the piston, and then the cooling liquid in the piston cavity enters into the cooling liquid channel, the cooling liquid flows in the cooling liquid channel, the effect of cooling liquid circulation is achieved, the cooling liquid is cooled rapidly, and cooling of the metal plate is facilitated.
In summary, the ventilation hole in this scheme is not in open state for a long time, compares in prior art, and outside dust etc. can not enter into display screen box inside from the ventilation hole always.
The gasbag in this scheme is when being blown the inflation by the wind, has not only realized the opening of ventilation hole, in the display screen box of being convenient for wind blowing in, carries out rapid cooling to the display screen box in. The flow of the cooling liquid is realized, and the display screen box body is further conveniently cooled better.
The first preferred scheme is as follows: as a further optimization of the basic scheme, the air bag is provided with an air leakage hole, and the air leakage hole is provided with an air outlet pipe; a power cavity is arranged in the wall of the display screen box body, and a power piece for opening the air outlet pipe under the pushing of the sliding plate is arranged in the power cavity; the air outlet pipe is communicated with an elastic folding pipe, a communicating pipe is arranged in the pushing plate, the upper end of the communicating pipe is communicated with the elastic folding pipe, and the lower end of the communicating pipe is communicated with the lower part of the piston cavity.
The arrangement of the air leakage hole and the air outlet pipe is mainly used for further realizing the flowing and stirring effects of the cooling liquid; the specific principle is as follows: when the air bag expands and pushes the sliding plate upwards to a certain position, the sliding plate enables the power piece to open the air outlet pipe; at this time, when wind blows into the air bag again, the air in the air bag can enter the air outlet pipe; then enters the elastic folding pipe and finally enters a piston cavity below the piston; the cooling liquid cooling device has the advantages that the air blowing of cooling liquid below the piston is realized, the air can enter the cooling liquid channel, and the flowing effect of the cooling liquid in the cooling liquid channel and the stirring effect generated by air flow are realized.
In addition, the elastic folding tube is mainly a foldable hose, so that when the air bag is inflated, the tube can be folded when being extruded by the air bag, and the inflation of the air bag can not be blocked.
And a second preferred scheme is as follows: as a further optimization of the first preferred mode, the air outlet pipe comprises an air outlet pipe body and a shutoff plate; an annular groove is formed in the inner wall of the air outlet pipe body, a shutoff plate is arranged in the annular groove, and a reset elastic piece for resetting the shutoff plate is arranged between the shutoff plate and the bottom wall of the annular groove; and the diameter of the shutoff plate is smaller than the diameter of the annular groove.
The cutoff plate and the annular groove are arranged, so that the air outlet pipe is very simply opened or closed; the concrete principle is that under the action of the reset elastic piece, the upper surface of the shutoff plate is propped against the upper wall of the annular groove, and at the moment, the air outlet pipe is closed; when the cutoff plate is pushed away from the upper wall of the annular groove, the outer wall of the cutoff plate is not in contact with the inner wall of the annular groove because the diameter of the cutoff plate is smaller than the diameter of the annular groove; a channel is formed between the closure plate and the inner wall of the annular groove, and then the air outlet pipe above the closure plate is communicated with the air outlet pipe below the closure plate.
And a preferred scheme III: as a further optimization of the second preferred aspect, the power member includes a first rack, a second rack, a gear, and a pressing lever; the first rack and the second rack are both in sliding connection with the inner wall of the power cavity, the gear is in rotational connection with the inner wall of the power cavity, and the first rack and the second rack are respectively meshed with the two sides of the gear; a bulge is fixed on one side of the first rack, which is close to the sliding plate; the sliding plate comprises a sliding plate body and a boss fixed on the sliding plate body, and the boss can push the boss to move upwards; an elastic piece for resetting the first rack is arranged between the first rack and the inner wall of the power cavity; the pressing rod is fixedly connected to the lower end of the second rack, the pressing rod penetrates through the blowing hole to enter the air bag, and one end, away from the second rack, of the pressing rod is located above the shutoff plate.
The pushing of the shutoff plate is simply realized, so that the air outlet pipe is opened. The specific principle is as follows: when the air bag expands, the sliding plate moves upwards to the communication hole to be communicated with the vent hole; if the air is continuously blown into the air bag, the boss on the sliding plate props against the lower surface of the boss on the first rack, so that the boss is pushed to move upwards; the first rack moves upwards to drive the gear to rotate, the second rack moves downwards, so that the pressing rod also moves downwards, the end part of the pressing rod stretches into the air outlet pipe, and the shutoff plate is pushed downwards; at this time, the air outlet pipe above the shutoff plate is communicated with the air outlet pipe below the shutoff plate. The gas in the air bag can flow through the air outlet pipe, the elastic folding pipe and the communicating pipe in sequence, then enters into the lower part of the piston cavity, and then enters into the cooling liquid channel.
The preferable scheme is as follows: as a further optimization of the basic scheme or the preferred scheme III, the cooling liquid tank comprises a tank body and a tank cover, wherein the tank body is provided with a liquid inlet and an air vent; the box cover is covered at the liquid inlet; the ventilation hole is positioned at the upper part of the box body.
The liquid inlet is mainly convenient for the cooling liquid to be added into the cooling liquid tank; the box cover is arranged mainly for facilitating closing of the liquid inlet. The ventilation holes are arranged, so that the air in the cooling liquid tank can flow out conveniently.
The preferable scheme is as follows: as a further optimization of the fourth preferred aspect, the aperture of the blowing hole decreases from the outer wall of the display screen case toward the direction of the airbag. Further ensuring that the gas can enter the air bag well.
Drawings
FIG. 1 is a front view of a first embodiment of a led display of the present application;
FIG. 2 is a schematic view of the internal structure of the right side wall of the display screen case of FIG. 1;
FIG. 3 is an enlarged view of A in FIG. 2;
FIG. 4 is a schematic view of the internal structure of the balloon chamber and piston chamber of FIG. 3;
FIG. 5 is an enlarged view of B in FIG. 4;
FIG. 6 is a schematic view of the cover and vent of the coolant tank of FIG. 2;
fig. 7 is a schematic view of a structure of an air vent in a second embodiment of a led display screen according to the present application.
Detailed Description
The application is described in further detail below by way of specific embodiments:
reference numerals in the drawings of the specification include: display screen case 1, slide plate chamber 11, slide plate 111, slide plate body 1111, boss 1112, communication hole 1113, airbag chamber 12, airbag 121, gas leakage hole 1211, gas outlet tube 1212, gas outlet tube body 12121, shutoff plate 12122, annular groove 12123, return elastic member 12124, elastic folded tube 1213, push plate 122, communication pipe 1221, piston chamber 13, piston 131, push rod 132, return member 133, vent hole 14, blow hole 15, coolant tank 2, case 21, gas exchange hole 211, case cover 22, liquid inlet tube 23, metal plate 3, coolant channel 31, power chamber 4, first rack 41, boss 411, elastic member 412, second rack 42, gear 43, pressing rod 44, T-shaped plug 5.
An embodiment substantially as shown in figures 1, 2, 3, 4, 5, 6 and 7 of the accompanying drawings:
the led display screen specifically referring to fig. 1, 2 and 3 comprises a display screen box body 1, wherein a slide plate cavity 11, an air bag cavity 12 and a piston cavity 13 are arranged in the wall of the display screen box body 1; a sliding plate 111 is connected in a sliding manner in the sliding plate cavity 11, and a communication hole 1113 is formed in the sliding plate 111; the wall of the display screen case 1 is provided with a vent hole 14 penetrating the slide plate chamber 11, and the communication hole 1113 may communicate with the vent hole 14.
The air bag cavity 12 is positioned below the slide plate cavity 11, and the air bag cavity 12 is communicated with the slide plate cavity 11; an air bag 121 is arranged in the air bag cavity 12, a blowing hole 15 is arranged on the outer wall of the display screen box body 1, as shown in fig. 4, a connecting hole communicated with the blowing hole 15 is arranged on the cavity wall of the air bag cavity 12, and the opening edge of the air bag 121 is fixedly connected to the connecting hole.
Referring specifically to fig. 4, a push plate 122 is slidably connected to the air bag chamber 12, and the push plate 122 is located below the air bag 121; the piston cavity 13 is positioned below the air bag cavity 12 (see fig. 3 in detail), a piston 131 is connected in a sliding manner in the piston cavity 13, and a push rod 132 is fixed between the piston 131 and the push plate 122; a reset member 133 for resetting the piston 131 is provided between the upper surface of the piston 131 and the upper chamber wall of the piston chamber 13.
A cooling liquid tank 2 is arranged on the display screen tank body 1; the cooling liquid tank 2 comprises a tank body 21 and a tank cover 22, wherein a liquid inlet and an air vent 211 are formed in the tank body 21, and the liquid inlet is formed in the top surface of the tank body 21 as shown in fig. 6; the cover 22 is covered at the liquid inlet, and the cover 22 is in threaded connection with the liquid inlet. The ventilation holes 211 are formed in the side wall of the upper portion of the case 21.
Referring specifically to fig. 2, a metal plate 3 is fixed on the bottom wall of the display screen case 1, and the metal plate 3 may be one of a copper plate, a silver plate, an aluminum plate, and the like. A coolant passage 31 is provided in the metal plate 3, and one end of the coolant passage 31 extends to communicate with the lower portion of the piston chamber 13. The other end of the cooling liquid passage 31 extends to the outer wall of the right side of the display screen case 1 in fig. 2 and communicates with the cooling liquid case 2 through a plastic pipe. A liquid outlet one-way valve is arranged on the cooling liquid channel 31; a liquid inlet pipe 23 is arranged between the lower part of the piston cavity 13 and the cooling liquid tank 2, and a liquid inlet check valve is arranged on the liquid inlet pipe 23.
In order to further realize the flowing and stirring effects of the cooling liquid, the air bag 121 is provided with an air leakage hole 1211, and the air leakage hole 1211 is communicated with an air outlet pipe 1212; referring specifically to FIG. 5, outlet tube 1212 is positioned inside bladder 121; the outlet tube 1212 includes an outlet tube body 12121 and a shut-off plate 12122; an annular groove 12123 is arranged on the inner wall of the air outlet pipe body 12121, a shutoff plate 12122 is arranged in the annular groove 12123, and a reset elastic piece 12124 for resetting the shutoff plate 12122 is arranged between the shutoff plate 12122 and the bottom wall of the annular groove 12123; and the diameter of the shut-off plate 12122 is smaller than the diameter of the annular groove 12123.
A power cavity 4 is arranged in the wall of the display screen box body 1, and a power piece for opening the air outlet pipe 1212 under the pushing of the sliding plate 111 is arranged in the power cavity 4. The air outlet pipe 1212 is connected with an elastic folding pipe 1213, and the elastic folding pipe 1213 is specifically a rubber hose or a corrugated hose. A communication pipe 1221 is provided in the push plate 122, and an upper end of the communication pipe 1221 communicates with the elastic folding pipe 1213, and a lower end of the communication pipe 1221 communicates with a lower portion of the piston chamber 13.
In order to realize the opening of the air outlet pipe 1212 under the pushing of the slide plate 111, the following is specifically set: as shown in fig. 3, the power member includes a first rack 41, a second rack 42, a gear 43, and a pressing lever 44; the first rack 41 and the second rack 42 are both in sliding connection with the inner wall of the power cavity 4, the gear 43 is in rotational connection with the inner wall of the power cavity 4, and the first rack 41 and the second rack 42 are respectively meshed with two sides of the gear 43; a boss 411 is fixed to one side of the first rack 41 near the slide plate 111; the slide 111 includes a slide body 1111 and a boss 1112 fixed to the slide body 1111, and the boss 1112 can push the boss 411 to move upward; an elastic piece 412 for resetting the first rack 41 is arranged between the first rack 41 and the inner wall of the power cavity 4; the pressing rod 44 is fixedly connected to the lower end of the second rack 42, the pressing rod 44 passes through the blowing hole 15 and enters the air bag 121, and one end of the pressing rod 44 away from the second rack 42 is located above the shutoff plate 12122.
The aperture of the blowing hole 15 decreases from the outer wall of the display screen case 1 toward the airbag 121. Further ensuring good ingress of gas into the bladder 121.
The return member 133, the elastic member 412 and the return elastic member 12124 in this embodiment are all springs.
In use, the vent 14 is in a state of opening and closing as follows:
vent 14 is closed: when the vent hole 14 is closed, the communication hole 1113 of the slide plate 111 is not correspondingly communicated with the vent hole 14; at this time, outside air, dust, etc. cannot enter the display screen case 1 through the vent hole 14.
Vent 14 is open: when wind is generated outside, the wind can be natural outside or blown by a blower; wind enters the wind hole 15 and then enters the airbag 121; the air bag 121 is inflated to further push the sliding plate 111 upwards, and when the communication holes 1113 on the sliding plate 111 correspond to the ventilation holes 14, external wind can enter the display screen box body 1 to blow the inside, so that the air flow in the display screen box body 1 is quickened, and the purpose of heat dissipation is achieved.
The gasbag 121 expands, can also promote the downward movement of push plate 122 below, push plate 122 promotes push rod 132, and push rod 132 promotes piston 131, and the coolant liquid of piston 131 below is extruded to piston 131, and then makes the coolant liquid in the piston chamber 13 enter into in the coolant liquid passageway 31, and the coolant liquid flows in coolant liquid passageway 31, flows back in coolant liquid tank 2 at last, reaches the effect to the coolant liquid circulation for the coolant liquid drops down fast, also is convenient for the cooling to metal sheet 3.
When no wind exists, the sliding plate 111 presses the air bag 121 under the action of self gravity, and the air in the air bag 121 is discharged, so that the sliding plate 111 slides downwards, and the communication holes 1113 and the ventilation holes 14 are staggered. At the same time of the air bag 121 deflating, the reset piece 133 can reset the upward movement of the piston 131, and the cooling liquid in the cooling liquid tank 2 enters the piston cavity 13 through the liquid inlet pipe 23.
To sum up, when the air bag 121 in this scheme is blown and expanded by wind, not only the vent hole 14 is opened, but also the wind is convenient to blow into the display screen box 1, and the interior of the display screen box 1 is cooled down rapidly. The flow of the cooling liquid is also realized, so that the display screen box body 1 can be cooled better.
In addition, in this scheme metal sheet 3 can also transmit the heat in the display screen box 1 for in the heat is transmitted the coolant liquid in the coolant liquid passageway 31 fast, and then realizes the cooling effect to the inside display screen box 1. To further achieve the flow of the cooling liquid in the cooling liquid channel 31 and the stirring effect; the air bag 121 of this embodiment further has an air leakage state, specifically: when the airbag 121 is inflated, the slide plate 111 moves upward to the communication hole 1113 to communicate with the vent hole 14; if the air is continuously blown into the air bag 121, the air bag 121 continues to expand, the sliding plate 111 moves upwards, the boss 1112 on the sliding plate 111 will abut against the lower surface of the boss 411 on the first rack 41, and further push the boss 411 to move upwards; the first rack 41 moves upwards to drive the gear 43 to rotate, the second rack 42 moves downwards to further enable the pressing rod 44 to move downwards, and the end part of the pressing rod 44 extends into the air outlet pipe 1212 and pushes the shutoff plate 12122 downwards; when the shut-off plate 12122 is pushed away from the upper wall of the annular groove 12123, the outer wall of the shut-off plate 12122 is not in contact with the inner wall of the annular groove 12123, since the diameter of the shut-off plate 12122 is smaller than the diameter of the groove interior of the annular groove 12123; a channel is formed between the closure plate 12122 and the inner wall of the annular groove 12123, thereby communicating the outlet tube 1212 above the closure plate 12122 with the outlet tube 1212 below the closure plate 12122; the gas in the air bag 121 sequentially flows through the gas outlet pipe 1212, the elastic folding pipe 1213 and the communicating pipe 1221, and then enters the lower part of the piston cavity 13 and then enters the cooling liquid channel 31, so as to realize the air blowing of the cooling liquid below the piston 131; in addition, the gas enters the coolant passage 31, and the flow effect of the coolant in the coolant passage 31 and the stirring effect by the gas flow are also achieved.
Example two
The difference between this embodiment and the first embodiment is that, as shown in fig. 7, a T-shaped plug 5 with a T-shaped cross section is provided at the ventilation hole 211; the wide end of the T-shaped plug 5 is cylindrical and is located outside the ventilation hole 211. The narrow end of the T-shaped plug 5 is also cylindrical and protrudes into the ventilation hole 211. And the diameter of the narrow end of the T-shaped plug 5 is smaller than the aperture of the ventilation hole 211; the diameter of the wide end of the T-shaped plug 5 is larger than the aperture of the ventilation hole 211. A tension spring is fixed between the wide end of the T-shaped plug 5 and the outer wall of the cooling liquid tank 2. The T-shaped plug 5 is provided mainly for reducing the entry of foreign substances into the coolant tank 2 through the ventilation holes 211. The tension spring has a certain thickness in a natural state, so that the wide head end of the T-shaped plug 5 cannot be attached to the outer surface of the cooling liquid tank 2; the gas in the cooling box can flow out through the gap at ordinary times. When the gas pressure in the cooling liquid tank 2 is large, the gas can also push the T-shaped plug 5 outwards from inside,
the foregoing is merely exemplary of the present application, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present application, and these should also be considered as the scope of the present application, which does not affect the effect of the implementation of the present application and the utility of the patent. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (6)
1. The led display screen comprises a display screen box body, and is characterized in that a slide plate cavity, an air bag cavity and a piston cavity are arranged in the wall of the display screen box body; a sliding plate is connected in the sliding plate cavity in a sliding way, and a communication hole is arranged on the sliding plate; the wall of the display screen box body is provided with a vent hole penetrating through the sliding plate cavity, and the communication hole can be communicated with the vent hole;
the air bag cavity is positioned below the slide plate cavity and is communicated with the slide plate cavity; an air bag is arranged in the air bag cavity, a blowing hole is formed in the outer wall of the display screen box body, and the blowing hole is communicated with the air bag; the wall of the air bag cavity is provided with a connecting hole communicated with the air blowing hole, and the edge of the opening of the air bag is fixedly connected with the connecting hole;
a pushing plate is connected in the air bag cavity in a sliding way and is positioned below the air bag; a piston is connected in the piston cavity in a sliding way, and a push rod is fixed between the piston and the push plate; a reset piece for resetting the piston is arranged between the piston and the cavity wall of the piston cavity;
a cooling liquid tank is arranged on the display screen tank body; a metal plate is arranged on the inner wall of the display screen box body; a cooling liquid channel is arranged in the metal plate, and cooling liquid is arranged in the cooling liquid tank and the cooling liquid channel; one end of the cooling liquid channel is communicated with the lower part of the piston cavity, and the other end of the cooling liquid channel is communicated with the cooling liquid tank; a liquid outlet one-way valve is arranged on the cooling liquid channel; a liquid inlet pipe is arranged between the lower part of the piston cavity and the cooling liquid tank, and a liquid inlet one-way valve is arranged on the liquid inlet pipe.
2. The led display of claim 1, wherein: the air bag is provided with a gas leakage hole, and the gas leakage hole is provided with a gas outlet pipe; a power cavity is arranged in the wall of the display screen box body, and a power piece for opening the air outlet pipe under the pushing of the sliding plate is arranged in the power cavity; the upper end of the communicating pipe is communicated with the elastic folding pipe, and the lower end of the communicating pipe is communicated with the lower part of the piston cavity.
3. A led display screen as claimed in claim 2, wherein: the air outlet pipe comprises an air outlet pipe body and a shutoff plate; an annular groove is formed in the inner wall of the air outlet pipe body, the shut-off plate is arranged in the annular groove, and a reset elastic piece for resetting the shut-off plate is arranged between the shut-off plate and the bottom wall of the annular groove; and the diameter of the shutoff plate is smaller than the diameter of the annular groove.
4. A led display according to claim 3, wherein: the power piece comprises a first rack, a second rack, a gear and a pressing rod; the first rack and the second rack are both in sliding connection with the inner wall of the power cavity, the gear is in rotational connection with the inner wall of the power cavity, and the first rack and the second rack are respectively meshed with the two sides of the gear; a bulge is fixed on one side of the first rack, which is close to the sliding plate; the sliding plate comprises a sliding plate body and a boss fixed on the sliding plate body, and the boss can push the boss to move upwards; an elastic piece for resetting the first rack is arranged between the first rack and the inner wall of the power cavity; the pressing rod is fixedly connected to the lower end of the second rack, the pressing rod penetrates through the blowing hole to enter the air bag, and one end, far away from the second rack, of the pressing rod is located above the intercepting plate.
5. A led display according to claim 1 or 4, characterized in that: the cooling liquid tank comprises a tank body and a tank cover, and a liquid inlet and an air vent are formed in the tank body; the box cover is covered at the liquid inlet; the ventilation hole is positioned at the upper part of the box body.
6. The led display of claim 5, wherein: the aperture of the blowing hole is reduced from the outer wall of the display screen box body towards the direction of the air bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810556895.5A CN108538212B (en) | 2018-05-31 | 2018-05-31 | LED display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN109340661B (en) * | 2018-11-20 | 2021-11-09 | 鹤山倍狮科技有限公司 | Emergency lighting equipment |
| CN111489635B (en) * | 2020-04-15 | 2021-10-01 | 中道明华建设工程项目咨询有限责任公司 | Overall process engineering cost progress management system |
| CN114683693B (en) * | 2020-12-25 | 2024-03-15 | 精工爱普生株式会社 | Liquid ejecting apparatus |
| CN113597167B (en) * | 2021-07-30 | 2022-11-22 | 深圳市新美网络科技有限公司 | Processor for technical management and consultation of marketing information |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007200957A (en) * | 2006-01-24 | 2007-08-09 | Nec Corp | Liquid-cooled heat dissipation apparatus |
| CN105491849A (en) * | 2014-09-17 | 2016-04-13 | 联想(北京)有限公司 | Cooling device and electronic product having cooling device |
| CN107370053A (en) * | 2017-09-15 | 2017-11-21 | 宁波博恩电气有限公司 | Distribution box with adaptation function |
| CN206948770U (en) * | 2017-08-03 | 2018-01-30 | 王丰政 | A kind of regulator cubicle with shock-absorbing function |
| CN107768990A (en) * | 2017-11-28 | 2018-03-06 | 宁波伊顿电力科技有限公司 | Method for power transformation box automatic heat radiation dedusting |
| CN207233307U (en) * | 2017-04-20 | 2018-04-13 | 富顺光电科技股份有限公司 | A kind of radiator structure of P4 LED outdoor display screens |
| CN107979935A (en) * | 2017-12-21 | 2018-05-01 | 重庆硕德信息技术有限公司 | Equipment enclosure applied to campus |
-
2018
- 2018-05-31 CN CN201810556895.5A patent/CN108538212B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007200957A (en) * | 2006-01-24 | 2007-08-09 | Nec Corp | Liquid-cooled heat dissipation apparatus |
| CN105491849A (en) * | 2014-09-17 | 2016-04-13 | 联想(北京)有限公司 | Cooling device and electronic product having cooling device |
| CN207233307U (en) * | 2017-04-20 | 2018-04-13 | 富顺光电科技股份有限公司 | A kind of radiator structure of P4 LED outdoor display screens |
| CN206948770U (en) * | 2017-08-03 | 2018-01-30 | 王丰政 | A kind of regulator cubicle with shock-absorbing function |
| CN107370053A (en) * | 2017-09-15 | 2017-11-21 | 宁波博恩电气有限公司 | Distribution box with adaptation function |
| CN107768990A (en) * | 2017-11-28 | 2018-03-06 | 宁波伊顿电力科技有限公司 | Method for power transformation box automatic heat radiation dedusting |
| CN107979935A (en) * | 2017-12-21 | 2018-05-01 | 重庆硕德信息技术有限公司 | Equipment enclosure applied to campus |
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