CN115016210A - Heat radiation structure and projecting apparatus of projecting apparatus - Google Patents
Heat radiation structure and projecting apparatus of projecting apparatus Download PDFInfo
- Publication number
- CN115016210A CN115016210A CN202210727481.0A CN202210727481A CN115016210A CN 115016210 A CN115016210 A CN 115016210A CN 202210727481 A CN202210727481 A CN 202210727481A CN 115016210 A CN115016210 A CN 115016210A
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- air inlet
- air
- baffle
- filter screen
- sleeve
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- 230000005855 radiation Effects 0.000 title description 3
- 230000017525 heat dissipation Effects 0.000 claims abstract description 50
- 230000000903 blocking effect Effects 0.000 claims abstract description 28
- 241000883990 Flabellum Species 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 10
- 230000004888 barrier function Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 238000010009 beating Methods 0.000 claims description 5
- 239000000696 magnetic material Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 25
- 239000007921 spray Substances 0.000 abstract description 21
- 239000012535 impurity Substances 0.000 abstract description 17
- 230000001846 repelling effect Effects 0.000 abstract description 3
- 238000011001 backwashing Methods 0.000 abstract description 2
- 238000005192 partition Methods 0.000 description 8
- 239000000428 dust Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
-
- 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
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/682—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by nozzles
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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
Abstract
The invention belongs to the technical field of projectors, and particularly relates to a heat dissipation structure of a projector and the projector, which comprise a shell; an air inlet and an air outlet are respectively formed in two sides of the shell, a filter screen is respectively installed in the shell, an air inlet sleeve is connected to the inner wall of the shell, a motor and fan blades are arranged inside the air inlet sleeve, a baffle plate is arranged on the top surface of the air inlet sleeve, an automatic plugging assembly is arranged on the inner wall of the air inlet sleeve, and a spray head is arranged at one end, close to the air inlet, of the air inlet sleeve; according to the invention, by controlling the work of the electromagnet, the electromagnet drives the baffle to slide into the air inlet sleeve from the sliding cavity after repelling the baffle, the outer end of the air inlet sleeve is blocked, and meanwhile, the automatic blocking assembly is controlled to simultaneously block the inner end of the air inlet sleeve, so that the fan blades can push the air flow in the closed air inlet sleeve to flow out from the spray pipe, and then blow off impurities on the surface of the filter screen, thereby playing a 'back washing' effect on the filter screen, and improving the heat dissipation effect of the heat dissipation structure on the projector.
Description
Technical Field
The invention belongs to the technical field of projectors, and particularly relates to a heat dissipation structure of a projector and the projector.
Background
The heat dissipation of the projector in the market at present is mainly a fan single-pumping or single-blowing mode, wherein the single-pumping mode means that the fan only pumps hot air in the projector and then discharges the hot air to the outside of the projector; the single blowing method is a method in which a fan blows air to a heat sink inside a projector.
A chinese patent with publication number CN106125473B discloses a heat dissipation structure of a projector and a projector, wherein the projector includes a fan, an air blower and a heat dissipation assembly arranged in a housing of the projector, the housing has a first vent and a second vent arranged at intervals, an air inlet of the fan is close to the first vent, the heat dissipation assembly is used for dissipating heat of a heating device in the projector, one side of the heat dissipation assembly is right opposite to an air outlet of the air blower, and the opposite side is right opposite to the second vent. Compared with the prior art, the heat dissipation structure reduces the noise of the air blower, improves the heat dissipation effect, and can avoid the influence of overhigh temperature in the projector on the service life of the fan and the air blower; the projector has good mute effect and heat dissipation effect.
Although the heat radiation structure in the above-mentioned technique can improve the inside radiating effect of projecting apparatus through the form that changes the radiating mode, when nevertheless the air-blower inhales external air current from going into the wind gap for a long time, can make external dust impurity pile up on the filter screen of air intake, if not carry out effectual clearance to it, can influence the air inlet effect of filter screen, and then influence the high-efficient heat dissipation of projecting apparatus.
Therefore, the invention provides a heat dissipation structure of a projector and the projector.
Disclosure of Invention
To remedy the deficiencies of the prior art, at least one of the technical problems set forth in the background is addressed.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a heat dissipation structure of a projector, which comprises a shell; an air inlet and an air outlet are respectively arranged on two sides of the shell, filter screens are respectively arranged in the air inlet and the air outlet, an air inlet sleeve is connected on the inner wall of the shell corresponding to the inner end of the air inlet, a motor is connected in the air inlet sleeve through a support, the end part of the motor is connected with a fan blade through a rotating shaft, a sliding cavity is arranged on the top surface of the air inlet sleeve corresponding to one end of the fan blade close to the air inlet, a baffle plate capable of plugging the air inlet sleeve is connected in the sliding cavity in a sliding manner, an elastic part is connected between the baffle plate and the inner end of the sliding cavity, an electromagnet is arranged at the inner end of the sliding cavity, the baffle plate is made of a magnetic material, an automatic plugging component is arranged on the inner wall of the air inlet sleeve corresponding to one end of the fan blade far away from the air inlet, an air inlet and an air outlet are respectively arranged on the side walls of the air inlet sleeves on two sides of the fan blade, and a spray nozzle is arranged at one end of the air inlet sleeve close to the air inlet, the air injection direction of the spray head faces to one side of the filter screen, and the spray head is communicated with the air outlet through a guide pipe; although the heat dissipation structure in the prior art can improve the heat dissipation effect inside the projector by changing the heat dissipation mode, when an air blower sucks external air flow from an air inlet for a long time, external dust impurities are accumulated on a filter screen of the air inlet, and if the air flow is not effectively cleaned, the air inlet effect of the filter screen is influenced, so that the efficient heat dissipation of the projector is influenced; when the heat dissipation structure is used, the motor drives the fan blades to rotate, and the fan blades can continuously push air to one side of the air outlet when rotating, thereby forming airflow for heat dissipation in the air inlet sleeve, when the surface of the filter screen at the air inlet has more impurities, the work of the electromagnet can be controlled, so that the electromagnet drives the baffle to slide into the air inlet sleeve from the sliding cavity after repelling the baffle, and plugs the outer end of the air inlet sleeve, meanwhile, the automatic plugging component is controlled to simultaneously plug the inner end of the air inlet sleeve, and when the fan blades continue to rotate, the fan blades can push the air flow in the closed air inlet sleeve to flow out from the air outlet and the guide pipe, the air flow can blow off impurities on the surface of the filter screen after flowing out from the spray pipe, therefore, the filter screen can be backwashed, the filter screen at the air inlet is cleaner, and the heat dissipation effect of the heat dissipation structure on the projector is improved.
Preferably, the automatic plugging assembly comprises a partition plate arranged inside the air inlet sleeve, a plurality of air inlet holes are formed in the side wall of the partition plate, a blocking strip is rotatably connected to the side wall of the partition plate corresponding to the top of one end, away from the fan blades, of each air inlet hole, and the bottom end of each blocking strip is connected with a metal sheet attracted to the corresponding baffle; when the casing is inside to dispel the heat, the air current can be with the blend stop from air inlet department under the promotion of flabellum this moment, thereby make the air current can effectually flow and dispel the heat in the casing is inside, when needs clear up the filter screen, along with the baffle slides in the air inlet cover inside, the baffle of magnetism material can attract the sheetmetal simultaneously, make the blend stop can strong support and press in inlet port one side, and carry out the shutoff to the inlet port, thereby realize baffle confined effect, make the air current that the flabellum can effectually promote in the air inlet cover clear up the filter screen.
Preferably, the air inlet is arranged at the position, corresponding to the baffle, of the bottom end of the air inlet sleeve, a blocking block is arranged inside the air inlet, an elastic rope is connected between the top end of the blocking block and the air inlet, and the bottom end of the baffle is connected with an ejector rod; when the air inlet is in normally open state, the flabellum is when dispelling the heat this moment, inside the reciprocal air inlet cover that inhales of air inlet can be followed to some steam in the casing, lead to the inside formation of heat cycle of projecting apparatus, this moment through set up the shutoff block structure in air inlet department, make the shutoff block can carry out the shutoff to the air inlet under the effect of elasticity rope, thereby the condition of the inside heat cycle of effectual reduction casing, when clearing up the filter screen, the baffle is when the shutoff of air inlet cover, can push away the shutoff block from the air inlet through the ejector pin, thereby make the clearance work of filter screen go on smoothly.
Preferably, the elastic part is in the form of a telescopic bag, elastic telescopic sleeves are connected between the free end of the barrier strip and the bottom surface of the air inlet hole, and the elastic part is communicated with the telescopic sleeves through air pipes; when the baffle slides to sliding chamber inside from the air inlet cover inside, the baffle can pass through the trachea with the gas in the expansion bag and impress in each expansion bag, make expansion bag expansion extend back with the blend stop from the stable top-open of inlet port, the gaseous flow when the flabellum heat dissipation of being convenient for, simultaneously when the filter screen is cleared up, along with the baffle slides in the air inlet cover inside, the expansion bag is at the in-process that lengthens, can inhale the gas in the expansion bag, thereby make the expansion bag shrink, and the laminating that the pulling blend stop is more powerful is in inlet port one side, thereby can carry out more effectual shutoff to the inlet port.
Preferably, a sliding rod is connected to the inner wall of the air inlet sleeve at the nozzle, a sliding block is connected to the sliding rod in a sliding manner, the nozzle is installed at the bottom end of the sliding block, a total flow groove for communicating the guide pipe with the nozzle is formed in the sliding block, and a diversion groove communicated with the total flow groove is formed in the side wall of the sliding block, which corresponds to the sliding rod in the axial direction; when the flabellum promoted gaseous inflow total chute, some gas can flow from the shower nozzle to impurity on the filter screen blows the clearance that falls, and some gas can utilize the impact force of air current from the splitter box blowout back simultaneously, drives the slider and slides along the slide bar, thereby can make the shower nozzle carry out the removal of vertical direction at the injection point on the filter screen, makes the filter screen can carry out more abundant and even clearance.
Preferably, the splitter boxes are symmetrically arranged, the two splitter boxes are connected through a control valve, point contact switches matched with the control valve are respectively installed on the side walls of the sliding blocks on one sides of the two splitter boxes, pressing rods are respectively installed on the side walls of the air inlet sleeve and the filter screen, and the pressing rods can extrude the point contact switches close to the air inlet sleeve and the filter screen; when the slider slides under the action of the air flow in one of the diversion channels, the slider can drive the point contact switch to move to the position of the pressure rod, and the pressure rod is utilized to extrude the point contact switch, so that the air flow of the control valve (which can be a two-way valve) is switched to the other diversion channel, the slider can slide back and forth on the slide rod, and the cleaning effect of the spray head on the filter screen is further improved.
Preferably, the inside of the air inlet is rotatably connected with a rotating rod, the side wall of the rotating rod is connected with a group of elastic clapper plates which are uniformly distributed in an annular manner, and the end part of the splitter box close to the filter screen can drive the elastic clapper plates to rotate when air is sprayed; when the slider drives the splitter box and moves to elasticity clapper board department, the air current strikes elasticity clapper board tip for the rotation that elasticity clapper board can last, elasticity clapper board tip can be patted the filter screen simultaneously, makes the incessant shake of filter screen surface, thereby promotes dropping of dust impurity on the filter screen.
Preferably, the surface of the telescopic sleeve is provided with a plurality of through cavities, the middle parts of the side walls of the through cavities are arranged into an inwards concave arc shape, the inside of each through cavity is provided with a blocking ball, and an elastic pull rope is connected between each blocking ball and the side wall of each through cavity; when the flabellum carries out the radiating work during, owing to the telescopic sleeve is in the extension state this moment, the shutoff ball with link up and produce the clearance between the groove to the air current that the flabellum of being convenient for promoted passes through, when the filter screen cleared up, along with the shrink of telescopic sleeve, link up the groove and can laminate the parcel to the shutoff ball, thereby make link up the groove and be in stable closed condition, further reduce the air current and follow the baffle outflow, lead to the circumstances that the tolerance of shower nozzle reduced.
Meanwhile, the invention provides a projector which comprises the heat dissipation structure.
The invention has the following beneficial effects:
1. according to the heat dissipation structure of the projector and the projector provided by the invention, the electromagnet is used for repelling the baffle plate by controlling the work of the electromagnet, then the baffle plate is driven to slide into the air inlet sleeve from the sliding cavity, the outer end of the air inlet sleeve is blocked, meanwhile, the automatic blocking component is controlled to simultaneously block the inner end of the air inlet sleeve, at the moment, when the fan blade continues to rotate, the fan blade can push the air flow in the closed air inlet sleeve to flow out from the air outlet and the guide pipe, and the air flow can blow off impurities on the surface of the filter screen after flowing out from the spray pipe, so that the back washing effect of the filter screen can be achieved, the filter screen at the air inlet is cleaner, and the heat dissipation effect of the heat dissipation structure on the projector is improved.
2. According to the heat dissipation structure of the projector and the projector provided by the invention, the blocking block structure is arranged at the air inlet, so that the blocking block can block the air inlet under the action of the elastic rope, the condition of thermal circulation in the shell is effectively reduced, when the filter screen is cleaned, the blocking block can be ejected from the air inlet through the ejector rod when the baffle blocks the air inlet sleeve, and the cleaning work of the filter screen can be smoothly carried out.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of a portion of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is an enlarged view at B in FIG. 3;
FIG. 5 is an enlarged view at C in FIG. 3;
FIG. 6 is a schematic structural view of a second embodiment of the present invention;
in the figure: the device comprises a shell 1, an air inlet 2, an air outlet 3, a filter screen 4, an air inlet sleeve 5, a motor 6, fan blades 7, a sliding cavity 8, a baffle 9, an elastic piece 10, an electromagnet 11, an air inlet 12, an air outlet 13, a spray head 14, a conduit 15, a partition plate 16, an air inlet 17, a barrier strip 18, a metal sheet 19, a blocking block 20, an elastic rope 21, a push rod 22, a telescopic sleeve 23, an air pipe 24, a sliding rod 25, a sliding block 26, a total flow groove 27, a flow distribution groove 28, a control valve 29, a point contact switch 30, a pressure rod 31, a rotating rod 32, an elastic beating plate 33, a through cavity 34, a blocking ball 35 and a pull rope 36.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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.
The first embodiment is as follows:
referring to fig. 1 to 5, a heat dissipation structure of a projector according to an embodiment of the invention includes a housing; an air inlet 2 and an air outlet 3 are respectively arranged at two sides of the shell, filter screens 4 are respectively arranged inside the air inlet 2 and the air outlet 3, an air inlet sleeve 5 is connected on the inner wall of the shell corresponding to the inner end of the air inlet 2, a motor 6 is connected inside the air inlet sleeve 5 through a support, the end part of the motor 6 is connected with a fan blade 7 through a rotating shaft, a sliding cavity 8 is arranged on the top surface of the air inlet sleeve 5 corresponding to one end of the fan blade 7 close to the air inlet 2, a baffle plate 9 capable of plugging the air inlet sleeve 5 is connected inside the sliding cavity 8 in a sliding way, an elastic part 10 is connected between the baffle plate 9 and the inner end of the sliding cavity 8, an electromagnet 11 is arranged at the inner end of the sliding cavity 8, the baffle plate 9 is made of a magnetic material, an automatic plugging component is arranged on the inner wall of the air inlet sleeve 5 corresponding to one end of the fan blade 7 far away from the air inlet 2, an air inlet 12 and an air outlet 13 are respectively arranged on the side walls of the air inlet sleeve 5 at two sides of the fan blade 7, a spray head 14 is arranged at one end of the air inlet sleeve 5 close to the air inlet 2, the air spraying direction of the spray head 14 faces one side of the filter screen 4, and the spray head 14 is communicated with the air outlet 13 through a guide pipe 15; although the heat dissipation structure in the prior art can improve the heat dissipation effect inside the projector by changing the heat dissipation mode, when an air blower sucks external air flow from an air inlet for a long time, external dust and impurities are accumulated on the filter screen 4 of the air inlet 2, and if the air flow is not effectively cleaned, the air inlet effect of the filter screen 4 is influenced, so that the efficient heat dissipation of the projector is influenced; when the heat dissipation structure is used, the motor 6 drives the fan blades 7 to rotate, the fan blades 7 can continuously push air to one side of the air outlet 3 when rotating, so that air flow for heat dissipation can be formed in the air inlet sleeve 5, when impurities on the surface of the filter screen 4 at the air inlet 2 are more, the electromagnet 11 can be controlled to work, so that the electromagnet 11 repels the baffle 9, the baffle 9 is driven to slide into the air inlet sleeve 5 from the sliding cavity 8, the outer end of the air inlet sleeve 5 is blocked, meanwhile, the automatic blocking component is controlled to simultaneously block the inner end of the air inlet sleeve 5, at the moment, when the fan blades 7 continue to rotate, the fan blades 7 can push the air flow in the closed air inlet sleeve 5 to flow out from the air outlet 13 and the guide pipe 15, the air flow can blow off the impurities on the surface of the filter screen 4 after flowing out from the spray pipe, so that the filter screen 4 can be backwashed, the filter screen 4 at the air inlet 2 is cleaner, and the heat dissipation effect of the heat dissipation structure on the projector is improved.
The automatic plugging assembly comprises a partition plate 16 arranged in the air inlet sleeve 5, a plurality of air inlet holes 17 are formed in the side wall of the partition plate 16, a blocking strip 18 is rotatably connected to the side wall of the partition plate 16 corresponding to the top of one end, far away from the fan blades 7, of each air inlet hole 17, and the bottom end of each blocking strip 18 is connected with a metal sheet 19 attracted to the corresponding baffle 9; when the casing is inside dispels the heat, the air current can be with blend stop 18 from inlet port 17 department under the promotion of flabellum 7 this moment and open, thereby make the air current can effectually flow and dispel the heat in the casing is inside, when needs clear up filter screen 4, along with baffle 9 slides in the air inlet cover 5 inside, the baffle 9 of magnetism material can attract sheetmetal 19 simultaneously, make blend stop 18 can be strong support and press in inlet port 17 one side, and block up inlet port 17, thereby realize 16 confined effects of baffle, make the air current that flabellum 7 can effectually promote in the air inlet cover 5 clear up filter screen 4.
The air inlet 12 is arranged at the position, corresponding to the baffle 9, of the bottom end of the air inlet sleeve 5, a blocking block 20 is arranged inside the air inlet 12, an elastic rope 21 is connected between the top end of the blocking block 20 and the air inlet 12, and the bottom end of the baffle 9 is connected with a mandril 22; when air inlet 12 is in the normally open state, flabellum 7 is when dispelling the heat this moment, partly steam in the casing can follow inside air inlet 12 reciprocal air inlet cover 5 that inhales, lead to the inside thermal cycle that forms of projecting apparatus, this moment through set up the shutoff piece 20 structure in air inlet 12 department, make shutoff piece 20 can carry out the shutoff to air inlet 12 under the effect of elasticity rope 21, thereby the condition of the inside thermal cycle of effectual reduction casing, when clearing up filter screen 4, baffle 9 when carrying out the shutoff to air inlet cover 5, can open up shutoff piece 20 from air inlet 12 through ejector pin 22, thereby make the clearance work of filter screen 4 go on smoothly.
The elastic part 10 is in the form of a telescopic bag, elastic telescopic sleeves 23 are connected between the free end of the barrier strip 18 and the bottom surfaces of the air inlet holes 17, and the elastic part 10 is communicated with each telescopic sleeve 23 through an air pipe 24; when baffle 9 slides to sliding chamber 8 inside from air inlet cover 5 is inside, baffle 9 can pass through trachea 24 with the gas in the expansion bag and impress in each expansion sleeve 23, make expansion sleeve 23 expand and extend back with the stable back-up of blend stop 18 from inlet port 17, the gaseous flow when the flabellum 7 heat dissipation of being convenient for, simultaneously when filter screen 4 clears up, inside along with baffle 9 slips into air inlet cover 5, the expansion bag is at the in-process that elongates, can inhale the gas in the expansion sleeve 23, thereby make the contraction of expansion sleeve 23, and the laminating that the pulling blend stop 18 is more powerful is in inlet port 17 one side, thereby can carry out more effectual shutoff to inlet port 17.
A sliding rod 25 is connected to the inner wall of the air inlet sleeve 5 at the position of the spray head 14, a sliding block 26 is connected to the sliding rod 25 in a sliding manner, the spray head 14 is installed at the bottom end of the sliding block 26, a total flow groove 27 for communicating the guide pipe 15 with the spray head 14 is formed in the sliding block 26, and a branch flow groove 28 communicated with the total flow groove 27 is formed in the side wall of the sliding block 26 axially corresponding to the sliding rod 25; when flabellum 7 promoted gaseous inflow total chute 27, some gas can flow from shower nozzle 14 to blow off the clearance to impurity on the filter screen 4, and some gas can utilize the impact force of air current, drive slider 26 and slide along slide bar 25 after 28 blowout of splitter box from the splitter box simultaneously, thereby can make the shower nozzle 14 carry out the removal of vertical direction at the injection point on filter screen 4, make filter screen 4 can carry out more abundant and even clearance.
The diversion trenches 28 are symmetrically arranged, the two diversion trenches 28 are connected through a control valve 29, point contact switches 30 matched with the control valve 29 are respectively installed on the side walls of the sliding blocks 26 on one side of the two diversion trenches 28, pressure rods 31 are respectively installed on the side walls of the air inlet sleeve 5 and the filter screen 4, and the pressure rods 31 can extrude the point contact switches 30 which are close to each other; when the sliding block 26 slides under the action of the air flow in one of the branch channels 28, the sliding block 26 can drive the point contact switch 30 to move to the position of the pressing rod 31, and the pressing rod 31 presses the point contact switch 30, so that the air flow of the control valve 29 (which may be a two-way valve) is switched to the other branch channel 28, and the sliding block 26 can slide on the sliding rod 25 back and forth, thereby further improving the cleaning effect of the spray head 14 on the filter screen 4.
A rotating rod 32 is rotatably connected inside the air inlet 2, a group of elastic beating plates 33 which are uniformly distributed in an annular mode are connected to the side wall of the rotating rod 32, and the elastic beating plates 33 can be driven to rotate when the end, close to the end portion of the flow distribution groove 28 of the filter screen 4, of the air injection; when slider 26 drives the motion of subchannel 28 to elasticity clap board 33 department, the air current strikes elasticity clap board 33 tip for the rotation that elasticity clap board 33 can last, elasticity clap board 33 tip can be patted filter screen 4 simultaneously, makes the incessant shake in filter screen 4 surface, thereby promotes dropping of dust impurity on filter screen 4.
Example two:
as shown in fig. 6, a first comparative example, in which another embodiment of the present invention is: the surface of the telescopic sleeve 23 is provided with a plurality of through cavities 34, the middle parts of the side walls of the through cavities 34 are arranged into an inwards concave arc shape, the inside of the through cavities 34 is provided with blocking balls 35, and elastic pull ropes 36 are connected between the blocking balls 35 and the side walls of the through cavities 34; when the flabellum 7 carries out the heat dissipation during operation, because the telescopic sleeve 23 is in the extension state this moment, blocking ball 35 and the production clearance of lining up between the groove to the air current that the flabellum 7 of being convenient for promoted passes through, when filter screen 4 cleared up, along with the shrink of telescopic sleeve 23, the groove of lining up can be laminated the parcel to blocking ball 35, thereby makes the groove of lining up be in stable closed condition, further reduces the air current and flows outward from baffle 16, leads to the circumstances of the tolerance reduction of shower nozzle 14.
Meanwhile, the invention provides a projector which comprises the heat dissipation structure.
The working principle is as follows: when the heat dissipation structure is used, the motor 6 drives the fan blades 7 to rotate, the fan blades 7 can continuously push air to one side of the air outlet 3 when rotating, so that air flow for heat dissipation can be formed in the air inlet sleeve 5, when impurities on the surface of the filter screen 4 at the air inlet 2 are more, the electromagnet 11 can be controlled to work, so that the electromagnet 11 repels the baffle 9, the baffle 9 is driven to slide into the air inlet sleeve 5 from the sliding cavity 8, the outer end of the air inlet sleeve 5 is blocked, meanwhile, the automatic blocking component is controlled to simultaneously block the inner end of the air inlet sleeve 5, at the moment, when the fan blades 7 continue to rotate, the fan blades 7 can push the air flow in the closed air inlet sleeve 5 to flow out from the air outlet 13 and the guide pipe 15, the air flow can blow off the impurities on the surface of the filter screen 4 after flowing out from the spray pipe, so that the filter screen 4 can be backwashed, the filter screen 4 at the air inlet 2 is cleaner, and the heat dissipation effect of the heat dissipation structure on the projector is improved; when heat dissipation is carried out inside the shell, the air flow can push the barrier strip 18 away from the air inlet 17 under the pushing of the fan blades 7, so that the air flow can effectively flow inside the shell and dissipate heat, when the filter screen 4 needs to be cleaned, the baffle 9 made of magnetic materials can simultaneously attract the metal sheet 19 along with the baffle 9 sliding into the air inlet sleeve 5, so that the barrier strip 18 can strongly press against one side of the air inlet 17 and block the air inlet 17, the sealing effect of the partition plate 16 is realized, and the fan blades 7 can effectively push the air flow in the air inlet sleeve 5 to clean the filter screen 4; when the air inlet 12 is in a normally open state, and at the time, when the fan blades 7 radiate heat, part of hot air in the shell can be sucked into the air inlet sleeve 5 from the air inlet 12 in a reciprocating manner, so that heat circulation is formed in the projector, at the time, the blocking block 20 structure is arranged at the air inlet 12, so that the blocking block 20 can block the air inlet 12 under the action of the elastic rope 21, the condition of heat circulation in the shell is effectively reduced, when the filter screen 4 is cleaned, the baffle 9 blocks the air inlet sleeve 5, the blocking block 20 can be ejected from the air inlet 12 through the ejector rod 22, and the cleaning work of the filter screen 4 can be smoothly carried out; when the baffle 9 slides from the inside of the air inlet sleeve 5 to the inside of the sliding cavity 8, the baffle 9 can press the gas in the telescopic bag into each telescopic sleeve 23 through the air pipe 24, so that the barrier strip 18 is stably ejected from the air inlet hole 17 after the telescopic sleeves 23 expand and extend, the gas can flow when the fan blades 7 dissipate heat, and meanwhile, when the filter screen 4 is cleaned, the gas in the telescopic sleeves 23 can be sucked in along with the sliding of the baffle 9 into the air inlet sleeve 5 in the process of extension of the telescopic bag, so that the telescopic sleeves 23 contract, and the barrier strip 18 is pulled to be more forcefully attached to one side of the air inlet hole 17, and the air inlet hole 17 can be more effectively plugged; when the fan blades 7 push the air to flow into the main flow groove 27, a part of the air flows out of the spray head 14 and blows off and cleans impurities on the filter screen 4, and meanwhile, after a part of the air is sprayed out of the branch flow groove 28, the slide block 26 is driven to slide along the slide rod 25 by using the impact force of the air flow, so that the spraying point of the spray head 14 on the filter screen 4 can move in the vertical direction, and the filter screen 4 can be cleaned more fully and uniformly; when the slide block 26 slides under the action of the air flow in one of the diversion trenches 28, the slide block 26 can drive the point contact switch 30 to move to the position of the pressure lever 31, and the air flow of the control valve 29 (which can be a two-way valve) is switched to the other diversion trench 28 by utilizing the extrusion of the pressure lever 31 on the point contact switch 30, so that the slide block 26 can slide back and forth on the slide rod 25, and the cleaning effect of the spray head 14 on the filter screen 4 is further improved; when slider 26 drives the motion of subchannel 28 to elasticity clap board 33 department, the air current strikes elasticity clap board 33 tip for the rotation that elasticity clap board 33 can last, elasticity clap board 33 tip can be patted filter screen 4 simultaneously, makes the incessant shake in filter screen 4 surface, thereby promotes dropping of dust impurity on filter screen 4.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A heat dissipation structure of a projector includes a housing; the method is characterized in that: an air inlet (2) and an air outlet (3) are respectively formed in two sides of the shell, a filter screen (4) is respectively installed inside the air inlet (2) and the air outlet (3), an air inlet sleeve (5) is connected to the inner end of the air inlet (2) on the inner wall of the shell corresponding to the inner end of the shell, a motor (6) is connected to the inside of the air inlet sleeve (5) through a support, the end of the motor (6) is connected with a fan blade (7) through a rotating shaft, a sliding cavity (8) is formed in the top surface of the air inlet sleeve (5) corresponding to one end, close to the air inlet (2), of the fan blade (7), a baffle (9) capable of plugging the air inlet sleeve (5) is connected to the inside of the sliding cavity (8) in a sliding mode, an elastic piece (10) is connected between the baffle (9) and the inner end of the sliding cavity (8), an electromagnet (11) is installed at the inner end of the sliding cavity (8), and the baffle (9) is made of a magnetic material, be equipped with automatic shutoff subassembly on air inlet cover (5) inner wall that one end that air intake (2) were kept away from in flabellum (7) corresponds, air inlet (12) and gas outlet (13) have been seted up on air inlet cover (5) lateral wall of flabellum (7) both sides respectively, the one end that air inlet cover (5) are close to air intake (2) is equipped with shower nozzle (14), the jet-propelled direction of shower nozzle (14) is towards filter screen (4) one side, be linked together through pipe (15) between shower nozzle (14) and gas outlet (13).
2. A heat dissipating structure of a projector according to claim 1, wherein: automatic shutoff subassembly is including setting up baffle (16) inside air inlet cover (5), a plurality of inlet ports (17) have been seted up on the lateral wall of baffle (16), baffle (16) lateral wall that the one end top that flabellum (7) were kept away from in inlet port (17) corresponds is gone up to rotate and is connected with blend stop (18), the bottom of blend stop (18) is connected with sheetmetal (19) that attract mutually with baffle (9).
3. A heat dissipating structure of a projector according to claim 2, wherein: air inlet (12) set up in air inlet cover (5) bottom and baffle (9) corresponding position department, air inlet (12) inside is equipped with plugging block (20), be connected with between the top of plugging block (20) and air inlet (12) elasticity rope (21), baffle (9) bottom is connected with ejector pin (22).
4. A heat dissipating structure of a projector according to claim 3, wherein: the elastic piece (10) is in the form of a telescopic bag, elastic telescopic sleeves (23) are connected between the free end of the barrier strip (18) and the bottom surface of the air inlet hole (17), and the elastic piece (10) is communicated with the telescopic sleeves (23) through air pipes (24).
5. The heat dissipation structure of a projector according to claim 4, wherein: the utility model discloses a shower nozzle, including shower nozzle (14), air inlet sleeve (5) inner wall department of shower nozzle department is connected with slide bar (25), sliding connection has slider (26) on slide bar (25), slider (14) are installed in slider (26) bottom, slider (26) inside general chute (27) of seting up intercommunication pipe (15) and shower nozzle (14), set up splitter box (28) that are linked together with general chute (27) on slider (26) and slide bar (25) axial corresponding lateral wall.
6. A heat dissipation structure of a projector according to claim 5, wherein: the splitter box (28) are symmetrical arrangement, are connected through control valve (29) between the two splitter boxes (28), and install on slider (26) lateral wall of two splitter boxes (28) one side respectively with control valve (29) matched with point touch switch (30), install depression bar (31) on air inlet cover (5) and filter screen (4) lateral wall respectively, depression bar (31) can extrude point touch switch (30) that are close to.
7. A heat dissipating structure of a projector according to claim 6, wherein: the air inlet (2) is connected with a rotating rod (32) in a rotating mode, the side wall of the rotating rod (32) is connected with a group of elastic beating plates (33) which are uniformly distributed in an annular mode, and the end portion, close to the filter screen (4), of the diversion channel (28) can drive the elastic beating plates (33) to rotate when air is jetted.
8. A heat dissipating structure of a projector according to claim 7, wherein: the surface of the telescopic sleeve (23) is provided with a plurality of through cavities (34), the middle parts of the side walls of the through cavities (34) are arranged to be in an inwards-concave arc shape, the inside of each through cavity (34) is provided with a blocking ball (35), and an elastic pull rope (36) is connected between each blocking ball (35) and the side wall of each through cavity (34).
9. A projector characterized by: comprising the heat dissipation structure of any one of claims 1-8.
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Cited By (1)
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| CN115978623A (en) * | 2022-12-07 | 2023-04-18 | 法狮龙家居建材股份有限公司 | Frequency conversion room heater |
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| CN115016210B (en) | 2023-12-01 |
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