CN114882792A - Display screen cooling device with automatic cleaning function - Google Patents

Display screen cooling device with automatic cleaning function Download PDF

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Publication number
CN114882792A
CN114882792A CN202110164501.3A CN202110164501A CN114882792A CN 114882792 A CN114882792 A CN 114882792A CN 202110164501 A CN202110164501 A CN 202110164501A CN 114882792 A CN114882792 A CN 114882792A
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CN
China
Prior art keywords
heat dissipation
display screen
box body
dissipation box
cleaning function
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110164501.3A
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Chinese (zh)
Inventor
于宝剑
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hefei Tongxu Wisdom Technology Co ltd
Original Assignee
Hefei Tongxu Wisdom Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Hefei Tongxu Wisdom Technology Co ltd filed Critical Hefei Tongxu Wisdom Technology Co ltd
Priority to CN202110164501.3A priority Critical patent/CN114882792A/en
Publication of CN114882792A publication Critical patent/CN114882792A/en
Pending legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • 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
    • 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
    • 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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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The invention relates to the technical field of display screen heat dissipation, and particularly discloses a display screen cooling device with an automatic cleaning function, wherein an air outlet is arranged at the position, corresponding to the air outlet end of a heat dissipation fan, of the top surface of a heat dissipation box body; the problem of the cold system of display screen have the inside damage components and parts of dust entering display screen and block up the radiating passage is solved.

Description

Display screen cooling device with automatic cleaning function
Technical Field
The invention relates to the technical field of display screen heat dissipation, in particular to a display screen cooling device with an automatic cleaning function.
Background
The LED display screen can display numbers, characters and graphic images, can be used in indoor environment and widely used in outdoor environment, and has the advantages that a projector, a television wall and a liquid crystal display screen cannot compare with the advantages. The rapid development of LEDs, which is regarded as important, is not separated from the advantages of LEDs. These advantages are summarized as follows: high brightness, low working voltage, low power consumption, small size, long service life, impact resistance and stable performance. The development prospect of the LED is very wide, and the LED is developing towards the directions of higher brightness, higher weather resistance, higher luminous density, higher luminous uniformity, reliability and full colorization at present. The LED belongs to a semiconductor electronic device, is fragile, has high requirements on environment, particularly temperature, and has higher aging speed when the environmental temperature is higher.
The existing display screen mainly has two heat dissipation modes, namely natural heat dissipation, and the display screen is dissipated by utilizing natural convection of air. The mode is generally used for display screens with large dot pitch, or indoor scanning screens and the like with low heat productivity and low heat dissipation requirement, and has the defect that the outdoor display screens with small dot pitch and static scanning cannot be used. Secondly, the display screen which can not meet the cooling requirement for natural heat dissipation is forced to dissipate heat, the forced heat dissipation generally utilizes a fan to accelerate cold dissipation, a large amount of gas enters the box body from the outside in the mode, and dust carried by the gas easily causes blockage of an internal heat dissipation channel. Therefore, in order to make the LED display more stable and prolong the service life of the device, it is necessary to provide a better heat dissipation system for the LED display and to evacuate the temperature generated during the operation of the LED display.
Disclosure of Invention
The invention aims at solving the problems that in the prior art, dust enters the display screen to damage components and blocks a heat dissipation channel in an air cooling system of the display screen, and designs a display screen cooling device with an automatic cleaning function.
In order to achieve the purpose, the invention provides the following technical scheme: a display screen cooling device with an automatic cleaning function comprises a heat dissipation box body, wherein a heat dissipation fan is arranged in an inner cavity of the heat dissipation box body, an air outlet is formed in the position, corresponding to the air outlet end of the heat dissipation fan, of the top surface of the heat dissipation box body, an air inlet is formed in the front surface of the heat dissipation box body, the display screen cooling device further comprises a filter plate, a movable substrate, a dust removal fan and a proximity sensor, and the filter plate is detachably mounted in the position, corresponding to the air inlet, of the front surface of the heat dissipation box body;
the movable substrate is transversely clamped at the position, close to the front end, of the bottom surface of the inner cavity of the heat dissipation box body in a sliding manner;
the dust removal fan is fixedly arranged on the top surface of the movable substrate, and the air outlet end of the dust removal fan faces the back surface of the filter plate;
the proximity sensor is arranged at the position, close to the two sides of the air inlet, of the bottom surface of the inner cavity of the heat dissipation box body, and is used for sending an electric signal for changing the moving direction of the moving substrate when the moving substrate moves to the position close to the two ends of the air inlet;
the end position of the bottom surface of the inner cavity of the heat dissipation box body is provided with a driving mechanism for driving the movable substrate to transversely move, and the input end of the driving mechanism is electrically connected with the output end of the proximity sensor.
Preferably, the driving mechanism comprises a motor and a screw rod, and the motor is fixedly arranged at a position close to one end of the bottom surface of the inner cavity of the heat dissipation box body;
one end of the screw rod is fixedly butted on a power output shaft of the motor, the screw rod is parallel to the length direction of the air inlet, and the screw rod is in threaded sleeve joint with the movable substrate.
Preferably, a sliding groove is transversely formed in the position, close to the air inlet, of the bottom surface of the inner cavity of the heat dissipation box body, shaft seats are fixedly connected to two ends of the inner cavity of the sliding groove respectively, two ends of the screw rod are rotatably sleeved on the side faces of the shaft seats respectively, and the bottom of the movable base plate is slidably clamped in the sliding groove.
Preferably, the front end of the bottom surface of the movable base plate is provided with a sliding block, the sliding block is connected in the sliding groove in a sliding and clamping mode, a threaded hole is vertically formed between the two side faces of the sliding block, and the threaded hole is in threaded sleeve connection with the screw rod.
Preferably, the proximity sensors are respectively and fixedly installed at positions close to two ends of the inner cavity of the sliding chute.
Preferably, the positions of the front surface of the heat dissipation box body, which are positioned at the two sides of the air inlet, are respectively provided with a clamping groove, and the two ends of the filter plate are respectively clamped in the clamping grooves in a sliding manner.
Preferably, flanges are respectively arranged on two sides of the filter plate and are respectively clamped in the clamping grooves in a sliding mode.
Preferably, a strip-shaped nozzle is arranged at the air outlet end of the dust removal fan along the vertical direction, and the length of the strip-shaped nozzle is equal to the width of the air inlet.
Preferably, the flange and the front face of the clamping groove are respectively provided with a screw hole at positions close to the top end and the bottom end.
Preferably, the number of the heat dissipation fans is at least three, and the heat dissipation fans are transversely and uniformly fixedly installed at the rear end of the inner cavity of the heat dissipation box body.
Compared with the prior art, the invention has the beneficial effects that:
1. the air cooling device is provided with the filter plate at the air inlet in a detachable mode, and can filter solid particles such as dust in cooling air flow, so that the solid particles are prevented from entering the display screen to cause damage to internal elements or block a heat dissipation channel.
2. The air cooling device is provided with the dust removal fan, and the dust removal fan moves along with the moving substrate, so that the air outlet port of the dust removal fan blows air reversely to the inner side of the filter plate, and the air vent of the filter plate is prevented from being blocked.
3. The air cooling device is provided with a proximity sensor for limiting the movement of the moving substrate, and the proximity sensor sends an electric signal for changing the running direction of the moving substrate to the driving mechanism in time so as to realize the reciprocating motion of the dust removal fan along with the moving substrate and further realize the reciprocating reverse blowing of the filter plate.
Drawings
FIG. 1 is a schematic top view of the present invention;
FIG. 2 is a schematic perspective view of a filter plate according to the present invention;
fig. 3 is a schematic perspective view of a movable substrate according to the present invention.
In the figure: 100-heat dissipation box body; 101-an air outlet; 102-an air inlet; 103-card slot; 104-a chute; 105-shaft seat; 200-a heat radiation fan; 300-a filter plate; 301-a flange; 400-moving the substrate; 401-a slider; 402-a threaded hole; 500-a dust removal fan; 600-a motor; 601-a screw rod; 700-proximity sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution, a display screen cooling device with an automatic cleaning function, comprising a heat dissipation box 100, a heat dissipation fan 200 disposed in an inner cavity of the heat dissipation box 100, an air outlet 101 disposed on a top surface of the heat dissipation box 100 corresponding to an air outlet end of the heat dissipation fan 200, an air inlet 102 disposed on a front surface of the heat dissipation box 100, a filter plate 300, a movable substrate 400, a dust removal fan 500, and a proximity sensor 700, wherein the filter plate 300 is detachably mounted on the front surface of the heat dissipation box 100 corresponding to the air inlet 102;
wherein, the moving substrate 400 is laterally slidably engaged with the bottom surface of the inner cavity of the heat dissipation case 100 at a position close to the front end;
wherein, the dust removing fan 500 is fixedly installed on the top surface of the moving substrate 400, and the air outlet end of the dust removing fan 500 faces the back surface of the filter plate 300;
the proximity sensor 700 is installed at a position on the bottom surface of the inner cavity of the heat dissipation box 100 near to two sides of the air inlet 102, and the proximity sensor 700 is used for sending an electrical signal for changing the moving direction of the moving substrate 400 when the moving substrate 400 moves to a position near to two ends of the air inlet 102;
the end position of the bottom surface of the inner cavity of the heat dissipation box 100 is provided with a driving mechanism for driving the movable substrate 400 to move transversely, and the input end of the driving mechanism is electrically connected with the output end of the proximity sensor 700.
In this embodiment, the driving mechanism includes a motor 600 and a screw 601, the motor 600 is fixedly mounted at a position near one end of the bottom surface of the inner cavity of the heat dissipation box 100;
one end of the screw rod 601 is fixedly butted on a power output shaft of the motor 600, the screw rod 601 is parallel to the length direction of the air inlet 102, and the screw rod 601 is in threaded socket joint with the movable substrate 400.
In this embodiment, a sliding groove 104 is transversely formed in a position of the bottom surface of the inner cavity of the heat dissipation box 100, which is close to the air inlet 102, two ends of the inner cavity of the sliding groove 104 are respectively and fixedly connected with an axle seat 105, two ends of the screw rod 601 are respectively and rotatably sleeved on the side surfaces of the axle seats 105, and the bottom of the movable substrate 400 is slidably clamped in the sliding groove 104.
In this embodiment, the front end of the bottom surface of the movable substrate 400 is provided with a slider 401, the slider 401 is slidably and fixedly connected to the chute 104, a threaded hole 402 is vertically formed between two side surfaces of the slider 401, and the threaded hole 402 is in threaded sleeve connection with the screw rod 601.
In this embodiment, the proximity sensors 700 are respectively fixedly mounted in the inner cavity of the chute 104 near the two ends.
In this embodiment, the front surface of the heat dissipation case 100 is provided with a plurality of slots 103 at two sides of the air inlet 102, and two ends of the filter plate 300 are slidably engaged with the slots 103.
In this embodiment, two sides of the filter plate 300 are respectively provided with a flange 301, and the flanges 301 are respectively slidably engaged with the engaging slots 103.
In this embodiment, the air outlet end of the dust removing fan 500 is provided with a strip-shaped nozzle along the vertical direction, and the length of the strip-shaped nozzle is equal to the width of the air inlet 102.
In this embodiment, the flange 301 and the front surface of the slot 103 are respectively provided with a screw hole at a position close to the top end and the bottom end.
In this embodiment, at least three heat dissipation fans 200 are provided, and the heat dissipation fans 200 are uniformly and fixedly mounted at the rear end of the inner cavity of the heat dissipation box 100 along the transverse direction.
The working principle is as follows: when the cooling box is used, the heat dissipation box body 100 is installed at the bottom of a display screen, and the air outlet 101 is communicated with the bottom of a cooling air duct inside the display screen; when the display screen normally operates, the heat dissipation fan 200 operates to form negative pressure in the heat dissipation box 100, so that external air flow enters the cooling air duct through the air outlet 101 to cool the display screen after being filtered and dedusted by the filter plate 300; solid impurities in the cooling air flow are adsorbed on the surface of the filter plate 300, when the display screen stops operating, the motor 600 starts operating, the motor 600 drives the moving substrate 400 to slide along the sliding groove 104 through the screw rod 601, when the moving substrate 400 contacts the proximity sensor 700, the proximity sensor 700 sends an electric signal to a controller of the motor 600, so that the motor 600 rotates reversely, and the effect that the moving substrate 400 slides back and forth along the sliding groove 104 is achieved; meanwhile, the dust removing fan 500 operates, the dust removing fan 500 blows air reversely to the inner side of the filter plate 300, and the dust removing fan 500 moves along with the moving substrate 400 to realize back blowing to the filter plate 300 in a reciprocating manner, so that solid particles adsorbed on the surface of the filter plate 300 are blown off, and the effect of preventing the filter holes of the filter plate 300 from being blocked is achieved; in addition, filter plate 300 may be easily removed from slot 103 to facilitate replacement and further cleaning of filter plate 300.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a show screen cold charge is put with self-cleaning function, includes heat dissipation box body (100), heat dissipation box body (100) inner chamber is provided with cooling fan (200), heat dissipation box body (100) top surface corresponds the position of cooling fan (200) air-out end is provided with air exit (101), the front of heat dissipation box body (100) is provided with air intake (102), its characterized in that still includes:
a filter plate (300);
a moving substrate (400);
a dust removal fan (500) and
the proximity sensor (700), the filter plate (300) is detachably mounted on the front surface of the heat dissipation box body (100) corresponding to the position of the air inlet (102);
the movable substrate (400) is transversely clamped at the position, close to the front end, of the bottom surface of the inner cavity of the heat dissipation box body (100) in a sliding manner;
the dust removal fan (500) is fixedly arranged on the top surface of the movable substrate (400), and the air outlet end of the dust removal fan (500) faces the back surface of the filter plate (300);
the proximity sensor (700) is mounted at a position, close to two sides of the air inlet (102), of the bottom surface of the inner cavity of the heat dissipation box body (100), and the proximity sensor (700) is used for sending an electric signal for changing the moving direction of the moving substrate (400) when the moving substrate (400) moves to a position close to two ends of the air inlet (102);
the end position of the bottom surface of the inner cavity of the heat dissipation box body (100) is provided with a driving mechanism for driving the movable substrate (400) to transversely move, and the input end of the driving mechanism is electrically connected with the output end of the proximity sensor (700).
2. A display screen cooling device with automatic cleaning function according to claim 1, wherein said driving mechanism comprises:
electric machine (600) and
the motor (600) is fixedly arranged at one end of the bottom surface of the inner cavity of the heat dissipation box body (100), which is close to the motor;
one end of the screw rod (601) is fixedly butted on a power output shaft of the motor (600), the screw rod (601) is parallel to the length direction of the air inlet (102), and the screw rod (601) is in threaded sleeve joint with the movable base plate (400).
3. A display screen cooling device with automatic cleaning function according to claim 2, characterized in that: the bottom surface of the inner cavity of the heat dissipation box body (100) is close to the position of the air inlet (102) and is transversely provided with a sliding groove (104), two ends of the inner cavity of the sliding groove (104) are respectively and fixedly connected with an axle seat (105), two ends of the screw rod (601) are respectively rotatably sleeved on the side surface of the axle seat (105), and the bottom of the movable substrate (400) is slidably clamped in the sliding groove (104).
4. A display screen cooling device with automatic cleaning function according to claim 3, characterized in that: the front end of the bottom surface of the movable base plate (400) is provided with a sliding block (401), the sliding block (401) is clamped in the sliding groove (104) in a sliding mode, a threaded hole (402) is vertically formed between two side faces of the sliding block (401), and the threaded hole (402) is in threaded sleeve connection with the screw rod (601).
5. A display screen cooling device with automatic cleaning function according to claim 3, characterized in that: the proximity sensors (700) are respectively and fixedly arranged at the positions close to the two ends of the inner cavity of the sliding chute (104).
6. A display screen cooling device with automatic cleaning function according to claim 1, characterized in that: the front surface of the heat dissipation box body (100) is provided with clamping grooves (103) at the positions of two sides of the air inlet (102), and two ends of the filter plate (300) are respectively clamped in the clamping grooves (103) in a sliding manner.
7. A display screen cooling device with automatic cleaning function according to claim 6, characterized in that: flanges (301) are respectively arranged on two sides of the filter plate (300), and the flanges (301) are respectively clamped in the clamping grooves (103) in a sliding mode.
8. A display screen cooling device with automatic cleaning function according to claim 7, wherein: and a strip-shaped nozzle is arranged at the air outlet end of the dust removing fan (500) along the vertical direction, and the length of the strip-shaped nozzle is equal to the width of the air inlet (102).
9. A display screen cooling device with automatic cleaning function according to claim 7, wherein: screw holes are respectively and correspondingly formed in the positions, close to the top end and the bottom end, of the front surfaces of the flange (301) and the clamping groove (103).
10. A display screen cooling device with automatic cleaning function according to any one of claims 1 to 9, characterized in that: the number of the heat dissipation fans (200) is at least three, and the heat dissipation fans (200) are transversely and uniformly fixedly installed at the rear end of the inner cavity of the heat dissipation box body (100).
CN202110164501.3A 2021-02-05 2021-02-05 Display screen cooling device with automatic cleaning function Pending CN114882792A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110164501.3A CN114882792A (en) 2021-02-05 2021-02-05 Display screen cooling device with automatic cleaning function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110164501.3A CN114882792A (en) 2021-02-05 2021-02-05 Display screen cooling device with automatic cleaning function

Publications (1)

Publication Number Publication Date
CN114882792A true CN114882792A (en) 2022-08-09

Family

ID=82667908

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110164501.3A Pending CN114882792A (en) 2021-02-05 2021-02-05 Display screen cooling device with automatic cleaning function

Country Status (1)

Country Link
CN (1) CN114882792A (en)

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