CN111261023A - Two-state waterproof structure of self-heating front-guiding display screen - Google Patents
Two-state waterproof structure of self-heating front-guiding display screen Download PDFInfo
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- CN111261023A CN111261023A CN201911245363.0A CN201911245363A CN111261023A CN 111261023 A CN111261023 A CN 111261023A CN 201911245363 A CN201911245363 A CN 201911245363A CN 111261023 A CN111261023 A CN 111261023A
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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
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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
- G09F9/35—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 liquid crystals
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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
- H05K7/2099—Liquid coolant with phase change
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Abstract
The invention discloses a dual-state waterproof structure of a self-heating front guide type display screen, which belongs to the technical field of display screens, can realize the adoption of a detachable sealing installation method, and arranges guide radiating holes to face the front side of the display screen, quickly transfers and guides heat emitted by a circuit in the display screen during working to the front side of the display screen, evaporates water vapor or even liquid water on the surface of the screen and nearby, organically combines the radiating and waterproof functions, realizes the radiating and heat transfer guiding while sealing and waterproofing, does not need to additionally arrange radiating components such as fans and the like compared with the existing fully-sealed waterproof box body, can protect the gas and liquid water at the same time, improves the waterproof effect of the display screen, and arranges the guide radiating holes on the front side of the display screen, can enlarge the contact area with the outside air to improve the radiating effect, can also remove the water vapor or liquid water on the surface of the display screen to improve the display effect, in addition, the device is convenient for technicians to disassemble, maintain and overhaul at regular intervals.
Description
Technical Field
The invention relates to the technical field of display screens, in particular to a dual-state waterproof structure of a self-heating front-guiding display screen.
Background
Displays (displays) are also commonly referred to as monitors. The display is an I/O device belonging to a computer, namely an input/output device. The electronic document display tool is a display tool which displays a certain electronic document on a screen through a specific transmission device and reflects the electronic document to human eyes.
According to different manufacturing materials, the method can be divided into the following steps: cathode ray tube displays (CRT), Plasma Display Panels (PDP), Liquid Crystal Displays (LCD), etc., the most common of which are liquid crystals, which are very special substances. It is both fluid and has certain optical properties of crystals. In 1888, liquid crystal was discovered by Reinitzer, austria phytologist, to be an organic compound between solid and liquid with a regular molecular arrangement, the arrangement of liquid crystal molecules was ordered and the order was very sensitive to changes in external conditions such as temperature, electromagnetic field. Under the action of an electric field, the arrangement of the liquid crystal molecules changes, thereby affecting the optical properties thereof, which is called an electro-optic effect. Generally, alignment films are mounted on two glass substrates, liquid crystal is aligned along the grooves, the alignment grooves of the glass substrates deviate from 90 °, the molecules in the liquid crystal are aligned like shutters in the same plane, and the nematic of the molecules is gradually twisted by 90 ° when passing from one liquid level to the other, that is, the alignment phase of the two layers of molecules is 90 ° different. Generally, the most commonly used liquid crystal type is nematic liquid crystal, the liquid crystal molecules are in the shape of slender rod, the length and width of the liquid crystal molecules are about 1-10nm (1nm is 10Am), under the action of different current electric fields, the liquid crystal molecules are regularly rotated by 90 degrees to generate the difference of transmittance, and thus, under the action of power on and off, the difference of light and shade is generated, so that each pixel is controlled by the principle to form the required image.
Along with display screen is in the vast application and the rapid development in society, waterproof problem is obvious day by day, often take sealed box design for the safety of guarantee display screen internal circuit, although water-proof effects obtains certain promotion, but the heat dissipation problem that follows also can not neglect, current sealed design is sealed for guaranteeing that good leakproofness is permanent mostly simultaneously, it is difficult to expand to lead to later maintenance and maintenance work, the waterproof of traditional display screen generally starts from liquid water, then be difficult to the face to seeing gaseous state water or steam and realize waterproofly, especially near the screen, steam or liquid water are attached to on the screen very easily, not only easily from the infiltration of screen edge, influence the display effect of display screen simultaneously.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a dual-state waterproof structure of a self-heating front guide type display screen, which can realize the adoption of a detachable sealing installation method, and arranges guide radiating holes to face the front side of the display screen, quickly transfers and guides heat emitted by a circuit in the display screen during working to the front side of the display screen, evaporates water vapor on the surface of the screen and nearby water even liquid water, organically combines the radiating and the waterproofing together, realizes the radiating and heat transfer guiding while sealing and waterproofing, does not need to additionally arrange radiating components such as fans and the like compared with the existing fully-sealed waterproof box body, saves the installation cost and space, reduces the thickness of the display screen, can protect the gas and liquid water, improves the waterproof effect of the display screen, and can enlarge the contact area with the outside air and improve the radiating effect by arranging the guide radiating holes at the front side of the display screen, can also clear away the steam or the liquid water on display screen surface and improve the display effect, still make things convenient for technical staff to dismantle regularly in addition to maintain and overhaul.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A dual-state waterproof structure of a self-heating front-guiding display screen comprises a display screen body, wherein a rear mounting substrate is arranged on the rear side of the display screen body, an inner embedded groove matched with the display screen body is formed in the rear mounting substrate in a chiseled mode, a front sealing coaming is arranged on the front side of the display screen body and comprises an outer matching frame and an inner sealing frame, the outer matching frame and the inner sealing frame are respectively matched with the rear mounting substrate and the display screen body, four uniformly distributed assembly bolts are connected to the outer matching frame in a threaded mode, four threaded grooves matched with the assembly bolts are formed in the front end of the rear mounting substrate in a chiseled mode, the inner sealing frame is fixedly connected to the inner side of the outer matching frame, an annular sealing groove is formed in one side, close to the display screen body, of the inner sealing groove, an annular heat conduction silica gel pad is arranged on the inner fixing pad, and a plurality of head-to-tail connected heat difference transfer balls are inlaid in the, the annular heat-conducting silica gel pad is provided with a plurality of expansion package holes matched with the thermal difference transfer ball in a chiseling mode, the thermal difference transfer ball is in interference fit with the expansion package holes, one end, far away from the outer fit frame, of the inner seal frame is provided with a plurality of uniformly distributed guide heat dissipation holes in a chiseling mode, and the guide heat dissipation holes are communicated with the expansion package holes.
Further, the heat differential transfer ball comprises a low-heat-conduction vaporization hemisphere, a vacuum heat insulation plate and a high-heat-conduction condensation hemisphere which are sequentially connected, the low-heat-conduction vaporization hemisphere is located on the inner side of the display screen body and is in contact with the internal circuit board through the heat-conduction silica gel layer in a laminating manner, the upper end and the lower end of the vacuum heat insulation plate are respectively provided with an upper air hole and a lower water permeable hole in a chiseling manner, a condensing agent is filled in the heat differential transfer ball, the low-heat-conduction vaporization hemisphere plays a role in transferring heat in the display screen body, the high-heat-conduction condensation hemisphere has excellent heat conductivity, the heat transferred out of the low-heat-conduction vaporization hemisphere can be rapidly conducted out, a lower temperature is always kept to be lower to provide a liquefying surface of the condensing agent, the upper air hole is used for passing through the.
Furthermore, the low-heat-conduction vaporization hemisphere is made of one of aluminum alloy or copper, the high-heat-conduction condensation hemisphere is made of red copper, the condensing agent is organic fluorocarbon, the heat conductivity of the red copper is superior to that of the aluminum alloy or copper, the circulating balance of the condensing agent is realized by actively manufacturing a poor heat conduction mode, and the organic fluorocarbon has a very excellent condensation effect.
Further, the cross-section edge in expansion package hole is the parabola, expansion package hole circumferencial is provided with a plurality of even elasticity heat conduction silk of pegging graft in annular heat conduction silica gel pad, and the expansion package hole of parabola design matches the surface that the heat transfer ball more easily and expands, and elasticity heat conduction silk plays the effect in setting expansion package hole on the one hand, prevents that irregular deformation phenomenon from appearing in the expansion process, and on the other hand provides better elasticity and assists expansion package hole and resume the shape, still has good heat conduction effect, promotes heat conduction speed.
Furthermore, elasticity heat conduction silk is the pitch arc structure of turning over outward, elasticity heat conduction silk is kept away from thermal-arrest board one end fixedly connected with expansion displacement ball, and elasticity heat conduction silk and expansion displacement ball all adopt high elasticity aluminum alloy material, and elasticity heat conduction silk and the setting of expansion displacement ball are favorable to forming the cooperation with the surface of thermal difference transfer ball and expand outward more, and the expansion displacement ball plays the effect of protection elasticity heat conduction silk, avoids appearing buckling destruction phenomenon when meeting the point contact.
Further, fixedly connected with thermal-arrest board between annular heat conduction silica gel pad and the annular seal groove, and elasticity heat conduction silk one end welds on the thermal-arrest board, and the thermal-arrest board plays the setting effect to annular heat conduction silica gel pad and to the stabilizing action of elasticity heat conduction silk, avoids appearing the unable phenomenon that recovers of deformation after the repeated expansion, plays the thermal effect of concentrating simultaneously.
Further, the heat collecting plate is far away from one end of the thermal difference transfer ball and is fixedly connected with a water-stop film bag, thermal expansion gas is filled in the water-stop film bag, the thermal expansion gas comprises but is not limited to carbon dioxide, the heat collected by the heat collecting plate is conducted into the guide radiating hole, the water-stop film bag is heated at first, the water-stop film bag expands due to the thermal expansion gas, hot air in the guide radiating hole is extruded out of the guide radiating hole and begins to blow to the surface of the display screen body, the effect of cleaning clean water can be achieved, air near the display screen body can be indirectly heated, evaporation of water vapor in the air is promoted, and the carbon dioxide has a good expansion coefficient and is higher than that of the air.
Furthermore, the direction radiating hole inclines to the direction that is close to the display screen body, and inclination is 15-30 degrees, and the angle of inclination setting of direction radiating hole can blow hot-air guide to the display screen body surface on the one hand, and the in-process has more time and space to heat the air in the direction radiating hole and heaies up, and on the other hand liquid water also is difficult for entering into in the direction radiating hole even when splashing or other circumstances contact the display screen body appear.
Further, the display screen body is close to four evenly distributed's of back mounting substrate one end fixedly connected with magnetism round platform, it has four and magnetism round platform assorted magnetism to inhale the groove to cut on the interior caulking groove diapire, the inslot fixedly connected with magnet piece is inhaled to the magnetism, plays the effect of temporary fixed display screen body, improves the factor of safety of installation dismantlement in-process.
Further, the assorted overedger frame has been cup jointed to the junction of after-mounting base plate and preceding sealed bounding wall, and fills up between and be equipped with assorted water-swelling rubber circle, and the overedger frame is used for the junction expansion protection to after-mounting base plate and preceding sealed bounding wall, and the ash that is difficult for advancing is intake and the phenomenon of colliding with appears, and the setting of water-swelling rubber circle also can be in time expanded and plug up the junction and realize sealed waterproof when the phenomenon of seeping water appears.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the scheme can realize the adoption of a detachable sealing installation method, the guide heat dissipation holes are arranged to face the front side of the display screen, heat dissipated by a circuit in the display screen during working is quickly transferred and guided to the front side of the display screen, vapor or even liquid water on the surface of the screen and nearby is evaporated, the heat dissipation and the water resistance are organically combined together, the heat dissipation and heat transfer guidance are realized while the sealing and the water resistance are realized, compared with the existing fully-sealed waterproof box body, no additional heat dissipation components such as a fan and the like are needed to be arranged, the installation cost and space are saved, the thickness of the display screen is reduced, meanwhile, the protection can be carried out on the gas state water and the liquid water, the waterproof effect of the display screen is improved, the guide heat dissipation holes are arranged on the front side of the display screen, the contact area with the outside air can be enlarged, the heat dissipation effect can be improved, and, in addition, the device is convenient for technicians to disassemble, maintain and overhaul at regular intervals.
(2) The heat differential transfer ball comprises a low-heat-conduction vaporization hemisphere, a vacuum heat insulation plate and a high-heat-conduction condensation hemisphere, the low-heat-conduction vaporization hemisphere is located on the inner side of a display screen body and is in contact with an internal circuit board through the heat conduction silica gel layer in a laminating manner, the upper end and the lower end of the vacuum heat insulation plate are respectively provided with an upper air hole and a lower water permeable hole in a chiseling manner, condensing agents are filled in the heat differential transfer ball, the low-heat-conduction vaporization hemisphere plays a role in transferring heat in the display screen body, the high-heat-conduction condensation hemisphere has excellent heat conductivity, the heat transferred out of the low-heat-conduction vaporization hemisphere can be rapidly conducted out to always keep lower temperature to provide a liquefying surface of the condensing agents, the upper air hole is used for passing through the condensing agents after vaporization, and.
(3) The low heat conduction vaporization hemisphere adopts one of aluminum alloy or copper, and the high heat conduction condensation hemisphere adopts the red copper material, and the condensing agent is organic matter fluorocarbon, and the heat conductivity of red copper is superior to aluminum alloy or copper, adopts the poor mode of initiative manufacturing heat conduction to realize the circulation balance of condensing agent, and organic matter fluorocarbon has very outstanding condensation effect.
(4) The cross-section edge in expansion package hole is the parabola, expansion package hole circumferencial is provided with a plurality of even elasticity heat conduction silk of pegging graft in annular heat conduction silica gel pad, the expansion package hole of parabola design matches the surface that the heat difference shifted the ball more easily and expands, elasticity heat conduction silk plays the effect that the shaping expanded package hole on the one hand, prevent the irregular deformation phenomenon from appearing in the expansion in-process, on the other hand provides better elasticity and assists expansion package hole and resume the shape, good heat conduction effect still has, promote heat conduction speed.
(5) Elastic heat conduction silk is the pitch arc structure of turning over the book outward, and elastic heat conduction silk is kept away from thermal-arrest board one end fixedly connected with expansion displacement ball, and elastic heat conduction silk and expansion displacement ball all adopt high elasticity aluminum alloy material, and elastic heat conduction silk and the setting of expansion displacement ball are favorable to more forming the cooperation with the surface of heat difference transfer ball and outwards expand, and the expansion displacement ball plays the effect of protection elastic heat conduction silk, avoids appearing buckling destruction phenomenon when the point contact.
(6) Fixedly connected with heat collection plate between annular heat conduction silica gel pad and the annular seal groove, and elasticity heat conduction silk one end welds on the heat collection plate, and the heat collection plate plays the setting effect to annular heat conduction silica gel pad and to the stabilizing action of elasticity heat conduction silk, avoids appearing the unable phenomenon that recovers of deformation after the expansion repeatedly, plays the effect of concentrating the heat simultaneously.
(7) The thermal-arrest board is kept away from heat difference transfer ball one end fixedly connected with water proof membrane bag, water proof membrane bag intussuseption is filled with thermal energy gas, thermal energy gas includes but not only is limited to carbon dioxide, the heat that the thermal-arrest board was concentrated and is come conducts in to the direction radiating hole, at first to water proof membrane bag heating, water proof membrane bag is because thermal energy gas's existence takes place the expansion phenomenon, extrude the direction radiating hole and begin to blow to display screen body surface with the hot-air in the direction radiating hole, can realize the effect of deashing clear water, can also carry out indirect heating to near the air of display screen body, promote the evaporation of steam in the air, carbon dioxide has good expansion coefficient, it is higher than the.
(8) The direction radiating hole inclines to the direction that is close to the display screen body, and inclination is 15-30 degrees, and the angle of inclination setting of direction radiating hole can blow the hot-air guide to the display screen body surface on the one hand, and the in-process has more time and space to heat the air in the direction radiating hole and heaies up, and on the other hand liquid water also is difficult for entering into in the direction radiating hole even when appearing splashing or other circumstances contact the display screen body.
(9) The display screen body is close to four evenly distributed's of back mounting substrate one end fixedly connected with magnetism round platform, cuts on the interior caulking groove diapire have four with magnetism round platform assorted magnetism inhale the groove, and the inslot fixedly connected with magnet piece is inhaled to the magnetism, plays the effect of temporary fixed display screen body, improves the factor of safety of installation dismantlement in-process.
(10) The junction of back mounting substrate and preceding sealed bounding wall has cup jointed assorted hemming frame, and fills up between and be equipped with assorted water-swelling rubber circle, and the hemming frame is used for deploying the protection to the junction of back mounting substrate and preceding sealed bounding wall, and the difficult ash that advances is intake and the phenomenon of colliding with appears, and the setting of water-swelling rubber circle also can and the time inflation plug up the junction when the phenomenon of seeping water appears and realize waterproof seal.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of a portion of the present invention;
FIG. 3 is a schematic structural view of a portion of the front seal shroud of the present invention;
FIG. 4 is a top cross-sectional view of the present invention;
FIG. 5 is a schematic view of the structure at A in FIG. 4;
FIG. 6 is a schematic diagram of the structure of the present invention prior to contact between the heat differential transfer ball and the expansion cup;
FIG. 7 is a schematic view of the structure of the present invention after the thermal differential transfer ball has been brought into contact with the hole of the expansion sleeve;
fig. 8 is a schematic view of the internal structure of the thermal difference transfer ball of the present invention.
The reference numbers in the figures illustrate:
the display screen comprises a display screen body 1, a rear mounting substrate 2, a front sealing enclosing plate 3, a 301 external matching frame, a 302 internal sealing frame, a 4-seaming frame, a 5 magnetic circular table, a 6 heat difference transfer ball, a 601 low-heat-conduction vaporization hemisphere, a 602 vacuum heat insulation plate, a 603 high-heat-conduction condensation hemisphere, a 7 annular heat-conduction silica gel pad, an 8 expansion wrapping hole, a 9 heat collection plate, a 10 waterproof film bag, 11 guide heat dissipation holes, 12 elastic heat conduction wires, 13 expansion shifting balls, 14 condensing agents, 15 lower water permeable holes and 16 upper air permeable holes.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise specifically stated or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are used in a broad sense, and for example, "connected" may be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements.
Example 1:
referring to fig. 1-3, a dual-state waterproof structure of a self-heating front guide display screen comprises a display screen body 1, a rear mounting substrate 2 is arranged at the rear side of the display screen body 1, an inner embedding groove matched with the display screen body 1 is formed in the rear mounting substrate 2, four uniformly distributed magnetic round platforms 5 are fixedly connected to one end of the display screen body 1 close to the rear mounting substrate 2, the display screen body is made of magnetic materials, four magnetic absorption grooves matched with the magnetic round platforms 5 are formed in the bottom wall of the inner embedding groove, magnet blocks are fixedly connected in the magnetic absorption grooves, the display screen body 1 is temporarily fixed, the safety factor in the mounting and dismounting process is improved, a matched seam covering frame 4 is sleeved at the joint of the rear mounting substrate 2 and a front sealing surrounding plate 3, a matched water-swelling rubber ring is arranged between the seam covering frame 4, and the seam covering frame 4 is used for unfolding and protecting the joint of the rear mounting substrate 2 and the front sealing surrounding plate 3, the waterproof display screen is not easy to enter ash and cause water collision, the arrangement of the water-swelling rubber ring can realize sealing and waterproofing by timely swelling and plugging at the joint even when water seepage occurs, the front side of the display screen body 1 is provided with a front sealing coaming 3, the front sealing coaming 3 comprises an outer matching frame 301 and an inner sealing frame 302, the outer matching frame 301 and the inner sealing frame 302 are respectively matched with the rear mounting substrate 2 and the display screen body 1, the outer matching frame 301 is in threaded connection with four evenly distributed assembly bolts, the front end of the rear mounting substrate 2 is provided with four threaded grooves matched with the assembly bolts, the inner sealing frame 302 is fixedly connected to the inner side of the outer matching frame 301, one side of the inner sealing frame 302 close to the display screen body 1 is provided with an annular sealing groove, the annular sealing groove is internally provided with an annular heat-conducting silica gel pad 7, and a plurality of head-to-tail connected heat difference transfer balls 6 are embedded and installed at the edge of the, a plurality of expansion bag holes 8 matched with the thermal difference transfer balls 6 are drilled in the annular heat-conducting silica gel pad 7, and the thermal difference transfer balls 6 are in interference fit with the expansion bag holes 8.
Referring to fig. 4-5, one end of the inner sealing frame 302, which is far from the outer fitting frame 301, is cut with a plurality of uniformly distributed guiding heat dissipation holes 11, the guiding heat dissipation holes 11 are communicated with the expanding bag hole 8, the guiding heat dissipation holes 11 are inclined toward the direction close to the display screen body 1, and the inclination angle is 15-30 degrees, the inclination angle of the guiding heat dissipation holes 11 is set to direct hot air to the surface of the display screen body 1, so that more time and space are available for heating the air in the guiding heat dissipation holes 11, on the other hand, even if liquid water splashes or otherwise contacts the display screen body 1, the liquid water is not easy to enter the guiding heat dissipation holes 11, one end of the heat collection plate 9, which is far from the thermal difference transfer ball 6, is fixedly connected with a water-proof film bag 10, the water-proof film bag 10 can block the passage of water molecules, so as to achieve a water-proof effect, the thermal expansion gas comprises but not limited to carbon dioxide, the heat collected by the heat collecting plate 9 is conducted into the guide heat dissipation hole 11, the water-proof film bag 10 is heated firstly, the water-proof film bag 10 expands due to the existence of the thermal expansion gas, the hot air in the guide heat dissipation hole 11 is extruded out of the guide heat dissipation hole 11 and begins to blow to the surface of the display screen body 1, the effect of cleaning ash and clear water can be achieved, the air near the display screen body 1 can be indirectly heated, the evaporation of water vapor in the air is promoted, and the carbon dioxide has a good expansion coefficient and is higher than that of the air.
Referring to fig. 8, the heat difference transfer sphere 6 includes a low thermal conductive vaporization hemisphere 601, a vacuum thermal insulation board 602 and a high thermal conductive condensation hemisphere 603 connected in sequence, the low thermal conductive vaporization hemisphere 601 is located inside the display screen body 1 and is in contact with the internal circuit board through a thermal conductive silica gel layer, the upper and lower ends of the vacuum thermal insulation board 602 are respectively perforated with an upper air vent 16 and a lower water vent 15, the heat difference transfer sphere 6 is filled with a condensing agent 14, the low thermal conductive vaporization hemisphere 601 plays a role in transferring heat in the display screen body 1, the high thermal conductive condensation hemisphere 603 has excellent thermal conductivity, the heat transferred from the low thermal conductive vaporization hemisphere 601 can be rapidly conducted out and always kept at a low temperature to provide a liquefied surface of the condensing agent 14, the upper air vent 16 is used for the vaporized condensing agent 14 to pass through, the lower water vent 15 is used for supplementing the liquefied condensing agent 14 to the low thermal conductive vaporization hemisphere 601, due to the small aperture of the lower water permeable holes 15 and the heat insulation effect of the vacuum heat insulation plate 602, the convection speed of the low heat conduction vaporization hemisphere 601 and the high heat conduction condensation hemisphere 603 is slow, the heat conduction speed is slow, that is, most of the heat of the low thermal conductive vaporization hemisphere 601 is used for forcing the condensing agent 14 in the low thermal conductive vaporization hemisphere to vaporize, and hardly affects the condensing agent 14 in the high thermal conductive condensation hemisphere 603, the relationship between the two only plays a role of supplementing the condensing agent 14 in the low thermal conductive vaporization hemisphere 601 by the communicating vessel principle, the low thermal conductive vaporization hemisphere 601 adopts one of aluminum alloy or copper, the high thermal conductive condensation hemisphere 603 adopts red copper material, the condensing agent 14 is organic fluorocarbon, the thermal conductivity of red copper is better than that of aluminum alloy or copper, the circulation balance of the condensing agent 14 is realized by adopting an active manufacturing poor thermal conductive manner, and the organic fluorocarbon has a very excellent condensation effect.
Referring to fig. 6-7, the edge of the cross section of the expansion bag hole 8 is a parabola, the expansion bag hole 8 is circumferentially provided with a plurality of elastic heat conducting wires 12 which are uniformly inserted into the annular heat conducting silica gel pad 7, the expansion bag hole 8 designed by the parabola is easier to match with the outer surface of the differential thermal transfer ball 6 for expansion, the elastic heat conducting wires 12, on one hand, play a role in shaping and expanding the bag hole 8 to prevent irregular deformation during expansion, on the other hand, provide better elastic auxiliary for shape recovery of the expansion bag hole 8, have good heat conducting effect and promote heat conducting speed, the elastic heat conducting wires 12 are of an arc structure which is turned outwards, one end of the elastic heat conducting wires 12, which is far away from the heat collecting plate 9, is fixedly connected with the expansion shift ball 13, and the elastic heat conducting wires 12 and the expansion shift ball 13 are both made of high-elasticity aluminum alloy, the arrangement of the elastic heat conducting wires 12 and the expansion shift ball 13 is more favorable for forming matching with the outer, expansion displacement ball 13 plays the effect of protection elasticity heat conduction silk 12, avoid appearing buckling destruction phenomenon when the point contact, fixedly connected with thermal-arrest board 9 between annular heat conduction silica gel pad 7 and the annular seal groove, and elasticity heat conduction silk 12 one end welds on thermal-arrest board 9, the heat conduction material that thermal-arrest board 9 adopted equally is heat conduction silicone grease, heat conduction tin thick liquid or graphite flake, thermal-arrest board 9 plays the setting effect to annular heat conduction silica gel pad 7 and the stabilizing action to elasticity heat conduction silk 12, avoid appearing the unable phenomenon that recovers of deformation after the repeated expansion, play the thermal effect of concentrating simultaneously.
During installation, the display screen body 1 is inserted into the embedded groove on the rear installation substrate 2, the magnetic circular truncated cone 5 is aligned with the magnetic absorption groove to start, after the temporary fixation is carried out by means of magnetic force, the front sealing coaming 3 is aligned and installed and extruded, the expansion wrapping hole 8 is deformed, expanded and attached to the high heat conduction condensation hemisphere 603 in the process, on one hand, the efficiency of wrapping heat transfer is improved, on the other hand, the tightness of the annular heat conduction silica gel pad 7 is improved after the expansion extrusion, the sealing waterproof effect is enhanced, after the assembly bolts are sequentially screwed on, the joint of the wrapping frame 4 and the rear installation substrate 2 and the front sealing coaming 3 is only needed, the displacement is not observed by naked eyes under slight force, the display screen body 1 can be used after the installation is finished, heat generated during the work of the display screen body 1 is absorbed and transferred to the condensing agent 14 in the low vaporization heat conduction hemisphere 601, the condensing agent 14 is heated and quickly gasified, and enters the high heat conduction condensation hemisphere 603 from the upper air vent 16, the condensing agent 14 liquefied in the high heat conduction condensing hemisphere 603 with lower contact temperature is slowly supplemented into the low heat conduction vaporizing hemisphere 601 through the lower permeable hole 15 based on the communicating vessel principle, so as to realize dynamic cooling balance of the condensing agent 14, the heat absorbed by the high heat conduction condensing hemisphere 603 is absorbed and conducted by the annular heat conduction silica gel pad 7 and the elastic heat conduction wires 12 wrapped on the surface and is concentrated on the heat collection plate 9, and the waterproof film bag 10 and the air in the guide heat dissipation hole 11 are heated, because the waterproof film bag 10 expands at a high speed, the hot air in the guide heat dissipation hole 11 is squeezed to blow to the surface of the display screen body 1, so that the heat is exchanged and transferred with the outside, meanwhile, the water vapor and the liquid water on the display screen body 1 can be evaporated and removed, and the moisture can be evaporated in the environment of the display screen body 1 within a certain range, and the heat in the heat transfer process is guided to the heat dissipation holes 11 to reduce the temperature, the air and the waterproof film bag 10 can shrink to a certain degree, the air near the display screen body 1 can be actively sucked for drying, and the process is similar to breathing in a repeated way, so that the invention can realize the heat dissipation and use to achieve the waterproof effect on the macro and the micro.
The invention can realize the detachable sealing installation method, the guide heat dissipation holes are arranged to face the front side of the display screen, the heat dissipated by the circuit in the display screen during working is quickly transferred and guided to the front side of the display screen, the water vapor or even liquid water on the surface of the screen and nearby is evaporated, the heat dissipation and the water resistance are organically combined together, the heat dissipation and the heat transfer guidance are realized while the sealing and the water resistance are realized, compared with the existing fully-sealed waterproof box body, no additional heat dissipation components such as a fan and the like are needed to be arranged, the installation cost and the space are saved, the thickness of the display screen is reduced, meanwhile, the protection can be carried out on the gas state water and the liquid water, the waterproof effect of the display screen is improved, and the guide heat dissipation holes are arranged on the front side of the display screen, so that the contact area with the outside air can be enlarged, the heat dissipation effect can, in addition, the device is convenient for technicians to disassemble, maintain and overhaul at regular intervals.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (10)
1. The utility model provides a binary waterproof construction of leading formula display screen of self-heating, includes display screen body (1), its characterized in that: the rear mounting base plate (2) is arranged on the rear side of the display screen body (1), a rear mounting base plate (2) is provided with an inner embedded groove matched with the display screen body (1), a front sealing coaming (3) is arranged on the front side of the display screen body (1), the front sealing coaming (3) comprises an outer matching frame (301) and an inner sealing frame (302), the outer matching frame (301) and the inner sealing frame (302) are respectively matched with the rear mounting base plate (2) and the display screen body (1), four assembling bolts which are uniformly distributed are in threaded connection on the outer matching frame (301), four threaded grooves matched with the assembling bolts are formed in the front end of the rear mounting base plate (2), the inner sealing frame (302) is fixedly connected to the inner side of the outer matching frame (301), an annular sealing groove is formed in the inner sealing frame (302) close to one side of the display screen body (1), annular seal inslot fixed bolster is equipped with annular heat conduction silica gel pad (7), display screen body (1) surface border department inlays and installs a plurality of end to end's thermal differential transfer ball (6), dig on annular heat conduction silica gel pad (7) have a plurality ofly with thermal differential transfer ball (6) assorted expansion package hole (8), and thermal differential transfer ball (6) and expansion package interference fit between hole (8), outer fit frame (301) one end is kept away from in interior seal frame (302) is dug and is had a plurality of evenly distributed's direction louvre (11), and direction louvre (11) are linked together with expansion package hole (8).
2. The bi-state waterproof structure of self-heating front-guiding display screen according to claim 1, wherein: the heat differential transfer ball (6) comprises a low-heat-conduction vaporization hemisphere (601), a vacuum heat-insulation plate (602) and a high-heat-conduction condensation hemisphere (603) which are sequentially connected, the low-heat-conduction vaporization hemisphere (601) is located on the inner side of the display screen body (1) and is in contact with an internal circuit board through the heat-conduction silica gel layer in a laminating manner, upper and lower ends of the vacuum heat-insulation plate (602) are respectively provided with an upper air hole (16) and a lower water permeable hole (15), and the heat differential transfer ball (6) is filled with a condensing agent (14).
3. The bi-state waterproof structure of self-heating front-guiding display screen according to claim 2, wherein: the low-heat-conduction vaporization hemisphere (601) is made of one of aluminum alloy or copper, the high-heat-conduction condensation hemisphere (603) is made of red copper, and the condensing agent (14) is organic fluorocarbon.
4. The bi-state waterproof structure of self-heating front-guiding display screen according to claim 1, wherein: the section edge of the expansion bag hole (8) is a parabola, and a plurality of elastic heat-conducting wires (12) which are uniformly inserted into the annular heat-conducting silica gel pad (7) are circumferentially arranged on the expansion bag hole (8).
5. The bi-state waterproof structure of self-heating front-guiding display panel according to claim 4, wherein: the elastic heat conducting wires (12) are of arc structures which are turned outwards, one ends, far away from the heat collecting plate (9), of the elastic heat conducting wires (12) are fixedly connected with expansion displacement balls (13), and the elastic heat conducting wires (12) and the expansion displacement balls (13) are made of high-elasticity aluminum alloy materials.
6. The bi-state waterproof structure of self-heating front-guiding display panel according to claim 4, wherein: and a heat collecting plate (9) is fixedly connected between the annular heat-conducting silica gel pad (7) and the annular sealing groove, and one end of the elastic heat-conducting wire (12) is welded on the heat collecting plate (9).
7. The bi-state waterproof structure of self-heating front-guiding display screen according to claim 1, wherein: one end, far away from the thermal difference transfer ball (6), of the heat collection plate (9) is fixedly connected with a water-stop film bag (10), and thermal expansion gas is filled in the water-stop film bag (10) and comprises but is not limited to carbon dioxide.
8. The bi-state waterproof structure of self-heating front-guiding display screen according to claim 1, wherein: the guide heat dissipation holes (11) are inclined towards the direction close to the display screen body (1), and the inclination angle is 15-30 degrees.
9. The bi-state waterproof structure of self-heating front-guiding display screen according to claim 1, wherein: display screen body (1) is close to four evenly distributed's of back mounting substrate (2) one end fixedly connected with magnetism round platform (5), it has four and magnetism round platform (5) assorted magnetism to inhale the groove to cut on the interior caulking groove diapire, the inslot fixedly connected with magnet piece is inhaled to the magnetism.
10. The bi-state waterproof structure of self-heating front-guiding display screen according to claim 1, wherein: the matched overedger frame (4) is sleeved at the joint of the rear mounting substrate (2) and the front sealing coaming (3), and a matched water-swelling rubber ring is arranged between the rear mounting substrate and the front sealing coaming.
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