CN210722249U - Dustproof LED display screen of indoor heat dissipation - Google Patents
Dustproof LED display screen of indoor heat dissipation Download PDFInfo
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- CN210722249U CN210722249U CN201922117125.3U CN201922117125U CN210722249U CN 210722249 U CN210722249 U CN 210722249U CN 201922117125 U CN201922117125 U CN 201922117125U CN 210722249 U CN210722249 U CN 210722249U
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Abstract
The utility model discloses a dustproof LED display screen of indoor heat dissipation belongs to display screen technical field, including display screen body and protection casing, the casing has the installation cavity, and the display screen body sets up in the opening part of installation cavity, is provided with in the installation cavity to carry out radiating heat abstractor to the display screen body, and heat abstractor includes cooling fan, heat dissipation pipeline, air intake and air outlet, and the air intake sets up in the side below of protection casing, and the air outlet is located the rear end top of protection casing, and cooling fan sets up in the inner port department of air intake. Compared with the traditional heat dissipation by a fan, the utility model has the advantages that the effect of uniform heat dissipation can be achieved; the heat radiation fan is controlled by a bimetal switch, so that the effects of working at high temperature and stopping at low temperature are achieved; the one-way valves are arranged at the air inlet and the air outlet, and when the cooling fan does not work, the one-way valves are automatically closed, so that dust in the air can be prevented from entering the installation cavity, and electronic elements in the display screen body can be protected.
Description
Technical Field
The utility model belongs to the technical field of the display screen, especially, relate to a dustproof LED display screen of indoor heat dissipation.
Background
The LED display screen is a display screen which controls the light emission of RGB semiconductor, and is composed of a plurality of RGB three-color light-emitting diodes, each pixel combination is provided with the RGB diode, full-color pictures with different colors are displayed by the on and off of each group of pixel lamps, the display screen is used for displaying various information such as characters, figures, images, animation, quotation, videos, video signals and the like, and the functions of illumination, innovation, popularization of knowledge and the like are achieved.
After the LED display screen works for a long time, each electronic element in the LED display screen can generate heat and be scalded, and in order to prevent burning, the LED display screen needs to have a heat dissipation effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the technical problem who exists to the aforesaid, provide one kind and have high-efficient heat dissipation, but also dirt-proof indoor LED display screen.
The purpose of the utility model is realized like this: an indoor heat-dissipation dustproof LED display screen comprises a display screen body and a protective shell, wherein the protective shell is provided with an installation cavity, the display screen body is arranged at an opening of the installation cavity, a heat dissipation device for dissipating heat of the display screen body is arranged in the installation cavity, the heat dissipation device comprises a heat dissipation fan, a heat dissipation pipeline, an air inlet and an air outlet, the air inlet is arranged below the side of the protective shell, the air outlet is positioned above the rear end of the protective shell, the heat dissipation fan is arranged at an inner port of the air inlet, the heat dissipation pipeline comprises a first flow channel which is horizontally arranged and positioned at the bottom of the installation cavity and two second flow channels which are vertically arranged and positioned at two side ends of the installation cavity, the opening end part of the first flow channel is right opposite to the heat dissipation fan, and the lower end parts of the two second flow channels are respectively communicated with the first flow channel, the upper end extends to the top of installation cavity and is closed, the up end of first runner and the side end face of second runner still all are provided with the water conservancy diversion hole of moving about freely and quickly and evenly distributed.
By adopting the technical scheme, for making the display screen body evenly dispel the heat, to this with heat abstractor by radiator fan, the heat dissipation pipeline, air intake and air outlet are constituteed, when radiator fan during operation, wind flows in from the air intake, then flow to first runner, flow to the second runner from first runner again, wherein partial wind in the first runner can enter into the installation cavity from the water conservancy diversion hole above it, whole wind in the second runner can enter into the installation cavity from the water conservancy diversion hole above it, gas in the installation cavity is discharged from the air outlet of protection casing's rear end top again, thereby accomplish the heat transfer, this radiating process, for the traditional heat dissipation of directly blowing with the fan, can play even radiating effect.
The utility model discloses further set up to: the air inlet has two and is located respectively protection casing's both sides below, radiator fan has two and is located two respectively the inner port department of air inlet, the other end opening of first runner just is just to another radiator fan, the middle part of first runner still is provided with the baffle.
Through adopting above-mentioned technical scheme, set up two air intakes and cooling fan to improve the radiating efficiency in the installation cavity in the protective housing.
The utility model discloses further set up to: the control button of the cooling fan is composed of two parallel bimetal temperature switches.
By adopting the technical scheme, the bimetal temperature switch is a temperature switch using a bimetal as a temperature sensing element, when the temperature rises to an action temperature value, the bimetal element is heated to generate internal stress to quickly act to close a contact and switch on a circuit, so that the cooling fan rotates, and the aim of working at high temperature is fulfilled; when the temperature drops to the set temperature, the contact is automatically disconnected, and the cooling fan stops running, so that the effect of stopping at low temperature is achieved, and the effect of saving electricity is achieved.
The utility model discloses further set up to: the air inlet and the air outlet are both provided with one-way valves, after the cooling fan is started, the one-way valve on the air inlet is opened towards the inner side of the air inlet, and the one-way valve on the air outlet is opened towards the outer side of the air outlet.
By adopting the technical scheme, the one-way valves are arranged at the air inlet and the air outlet, and when the heat dissipation fan does not work, the one-way valves are automatically closed, so that dust in air can be prevented from entering the mounting cavity, and electronic elements in the display screen body can be protected; when the cooling fan is started, the one-way valve at the air inlet is extruded inwards and opened under the action of negative pressure, and the one-way valve at the air outlet is extruded outwards and opened.
The utility model discloses further set up to: the check valve comprises a sleeve with an opening at one end and a sealing cover movably arranged along the axial direction of the sleeve, an annular baffle is arranged on the inner wall of the opening of the sleeve and radially inwards arranged, one end of the check valve is arranged at the inner end of the sleeve, the other end of the check valve is arranged at the other end of the sleeve and is used for driving the sealing cover to move towards the opening of the sleeve and cover the opening of the sleeve, and a plurality of filtering holes are uniformly distributed along the axial direction and the circumferential direction of the sleeve.
By adopting the technical scheme, the spring is in a compressed state under a static state, namely the heat radiating fan is not started, the sealing cover is pushed to move towards the opening of the sleeve by the elastic potential energy of the spring, and the opening on the sleeve is sealed after the sealing cover is abutted against the annular baffle, so that a closing effect is achieved, and dust in air can be prevented from entering the mounting cavity; after the sealing cover receives external force opposite to the spring, namely the cooling fan is opened, the sealing cover gradually approaches to the inner end part of the sleeve and is separated from the annular baffle, so that the opening on the sleeve is opened, large-particle dust in air flows into the sleeve from the opening, and finally the particles flow out of the sleeve.
The utility model discloses further set up to: and a drying agent bag close to the air outlet end of the one-way valve is further arranged at the inner port of the air inlet.
Through adopting above-mentioned technical scheme, the inner port department at the air intake sets up the drier package, thereby can dry the air that gets into through the drier package to avoid installing the casing internal humidity, the drier in the drier package can adopt anhydrous calcium chloride.
The utility model has the advantages that: 1. when the heat dissipation fan works, air flows in from the inlet, then flows to the first flow channel, and then flows from the first flow channel to the second flow channel, wherein part of the air in the first flow channel can enter the installation cavity from the flow guide holes on the first flow channel, all the air in the second flow channel can enter the installation cavity from the flow guide holes on the second flow channel, and the air in the installation cavity is discharged from the air outlet above the rear end of the protection shell, so that the heat exchange is completed, and compared with the traditional heat dissipation process of directly blowing and dissipating heat by using a fan, the heat dissipation fan has the effect of uniform heat dissipation; 2. the heat radiation fan is controlled by a bimetal switch, so that the effects of working at high temperature and stopping at low temperature are achieved, and the effect of saving electricity is achieved; 3. the one-way valves are arranged at the air inlet and the air outlet, and are automatically closed when the heat dissipation fan does not work, so that dust in the air can be prevented from entering the mounting cavity, and electronic elements in the display screen body are protected; 4. the inner port of the air inlet is provided with the drying agent bag, so that the entering air can be dried through the drying agent bag, and the moisture in the protective shell is avoided.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic view of the internal structure of the present invention;
fig. 3 is a schematic structural diagram of a second flow passage of the present invention;
FIG. 4 is a schematic structural view of the check valve of the present invention;
the reference numbers in the figures are: 1. a display screen body; 2. a protective housing; 31. a heat radiation fan; 32. a first flow passage; 33. a second flow passage; 34. an air inlet; 35. an air outlet; 36. a flow guide hole; 37. a partition plate; 4. a one-way valve; 41. a sleeve; 42. a sealing cover; 43. an annular baffle; 44. a spring; 45. a filtration pore; 5. a desiccant packet.
Detailed Description
In order to make the technical solutions in the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings:
as shown in fig. 1, 2 and 3, an indoor heat-dissipation dustproof LED display screen includes a display screen body 1 and a protective casing 2, wherein the protective casing 2 has a mounting cavity, the display screen body 1 is disposed at an opening of the mounting cavity, a heat dissipation device for dissipating heat from the display screen body 1 is disposed in the mounting cavity, the heat dissipation device includes a heat dissipation fan 31, a heat dissipation pipe, an air inlet 34 and an air outlet 35, the air inlet 34 is disposed below the protective casing 2, the air outlet 35 is disposed above a rear end of the protective casing 2, the heat dissipation fan 31 is disposed at an inner port of the air inlet 34, the heat dissipation pipe includes a first flow channel 32 horizontally disposed at a bottom of the mounting cavity and two second flow channels 33 vertically disposed at two side ends of the mounting cavity, an opening end of the first flow channel 32 faces the heat dissipation fan 31, lower end portions of the two second flow channels 33 are respectively communicated with the first flow channel 32, the upper end extends to the top of the mounting cavity and is closed, and diversion holes 36 which are distributed longitudinally and transversely and uniformly are arranged on the upper end surface of the first flow passage 32 and the side end surface of the second flow passage 33.
In order to uniformly dissipate heat of the display screen body 1, the heat dissipation device comprises a heat dissipation fan 31, a heat dissipation pipeline, an air inlet 34 and an air outlet 35, when the heat dissipation fan 31 works, air flows in from the air inlet 34, then flows to the first flow channel 32, and then flows from the first flow channel 32 to the second flow channel 33, wherein part of the air in the first flow channel 32 enters the installation cavity from the flow guide holes 36 on the first flow channel, all the air in the second flow channel 33 enters the installation cavity from the flow guide holes 36 on the second flow channel, and the air in the installation cavity is discharged from the air outlet 35 above the rear end of the protective shell 2, so that heat exchange is completed.
The two air inlets 34 are respectively located below two sides of the protective housing 2, the two heat dissipation fans 31 are respectively located at inner ports of the two air inlets 34, the other end of the first flow channel 32 is open and faces the other heat dissipation fan 31, and a partition 37 is further disposed in the middle of the first flow channel 32. By providing two air inlets 34 and the heat dissipation fan 31, the heat dissipation efficiency in the installation cavity in the protective housing 2 is improved.
The control button of the cooling fan 31 is composed of two parallel bimetal temperature switches. The bimetal temperature switch is a temperature switch using a bimetal as a temperature sensing element, when the temperature rises to an action temperature value, the bimetal element is heated to generate internal stress to act rapidly to close a contact and switch on a circuit, so that the heat radiation fan 31 rotates, and the aim of working the heat radiation fan 31 at high temperature is fulfilled; when the temperature drops to the set temperature, the contact is automatically disconnected, and the cooling fan 31 stops running, so that the effect of low-temperature stop is achieved, and the effect of saving electricity is achieved.
Preferably, as shown in fig. 2 and 4, the air inlet 34 and the air outlet 35 are both provided with the check valve 4, after the cooling fan 31 is started, the check valve 4 on the air inlet 34 is opened towards the inner side of the air inlet 34, and the check valve 4 on the air outlet 35 is opened towards the outer side of the air outlet 35. The one-way valves 4 are arranged at the air inlet 34 and the air outlet 35, and when the heat dissipation fan 31 does not work, the one-way valves 4 are automatically closed, so that dust in air can be prevented from entering the installation cavity, and electronic elements in the display screen body 1 can be protected; when the heat dissipation fan 31 is turned on, under the action of negative pressure, the check valve 4 at the air inlet 34 is pressed inward and opened, and the check valve 4 at the air outlet 35 is pressed outward and opened.
The check valve 4 comprises a sleeve 41 with an opening at one end and a sealing cover 42 movably arranged along the axial direction of the sleeve 41, an annular baffle 43 arranged radially inwards is arranged on the inner wall of the opening of the sleeve 41, the check valve 4 further comprises a spring 44 with one end arranged at the inner end of the sleeve 41 and the other end arranged on the sealing cover 42 to drive the sealing cover 42 to move towards the opening of the sleeve 41 and cover the opening, and the outer wall of the sleeve 41 is further provided with a plurality of filtering holes 45 uniformly distributed along the axial direction and the circumferential direction of the sleeve 41.
In a static state, that is, the heat dissipation fan 31 is not started, at this time, the spring 44 is in a compressed state, the sealing cover 42 is pushed to move towards the opening of the sleeve 41 by the elastic potential energy of the spring, and after the sealing cover 42 is abutted against the annular baffle 43, the opening of the sleeve 41 is sealed, so that a closing effect is achieved, and dust in air can be prevented from entering the installation cavity; after the sealing cover 42 is subjected to an external force opposite to the spring 44, that is, the heat dissipation fan 31 is opened, the sealing cover 42 gradually approaches to the inner end of the sleeve 41 and is separated from the annular baffle 43, so that the opening on the sleeve 41 is opened, in order to prevent large-particle dust in the air from flowing into the sleeve 41 from the opening, and finally the particles flow out of the sleeve 41, a filter hole 45 is formed in the sleeve 41, and the inlet is communicated with the filter hole 45, so that the fluid is filtered through the filter hole 45 and then discharged, and a dustproof effect is achieved.
Preferably, as shown in fig. 2, the inner port of the air inlet 34 is further provided with a desiccant bag 5 close to the air outlet end of the one-way valve 4. A drying agent bag 5 is arranged at the inner port of the air inlet 34, the entering air can be dried through the drying agent bag 5 so as to avoid the humidity in the installation shell, and the drying agent in the drying agent bag 5 can adopt anhydrous calcium chloride; since the wind is discharged from the filtering holes 45 on the sleeve 41, in order to dry the whole of the entering wind, the desiccant bag 5 may be configured to be an annular structure and sleeved on the outer wall of the sleeve 41, wherein, in order to avoid interference to the wind, a large gap needs to be left between the sleeve 41 and the desiccant bag 5 so as to facilitate the wind to pass through.
The above embodiments are only preferred embodiments of the present invention, not all embodiments, and other embodiments obtained based on the above embodiments by those skilled in the art without any creative work shall fall within the protection scope of the present invention, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (6)
1. The utility model provides a dustproof LED display screen of indoor heat dissipation, includes display screen body (1) and protection casing (2), its characterized in that: the protection shell (2) is provided with an installation cavity, the display screen body (1) is arranged at an opening of the installation cavity, a heat dissipation device for dissipating heat of the display screen body (1) is arranged in the installation cavity, the heat dissipation device comprises a heat dissipation fan (31), a heat dissipation pipeline, an air inlet (34) and an air outlet (35), the air inlet (34) is arranged below the side of the protection shell (2), the air outlet (35) is positioned above the rear end of the protection shell (2), the heat dissipation fan (31) is arranged at an inner port of the air inlet (34), the heat dissipation pipeline comprises a first flow channel (32) which is horizontally arranged and positioned at the bottom of the installation cavity and two second flow channels (33) which are vertically arranged and positioned at two side ends of the installation cavity, and the opening end part of the first flow channel (32) is right opposite to the heat dissipation fan (31), the lower end parts of the two second flow passages (33) are respectively communicated with the first flow passage (32), the upper ends of the two second flow passages extend to the top of the mounting cavity and are closed, and the upper end surface of the first flow passage (32) and the side end surface of the second flow passage (33) are provided with guide holes (36) which are vertically, horizontally and uniformly distributed.
2. The indoor heat-dissipation dustproof LED display screen according to claim 1, characterized in that: air intake (34) have two and be located respectively the both sides below of protection casing (2), radiator fan (31) have two and be located two respectively the inner port department of air intake (34), the other end opening of first runner (32) just is right to another radiator fan (31), the middle part of first runner (32) still is provided with baffle (37).
3. The indoor heat-dissipation dustproof LED display screen according to claim 2, characterized in that: and a control button of the heat radiation fan (31) is composed of two parallel bimetal temperature switches.
4. The indoor heat-dissipation dustproof LED display screen according to claim 2, characterized in that: air intake (34) and air outlet (35) all are provided with check valve (4), after radiator fan (31) opened, check valve (4) on air intake (34) to air intake (34) inboard is opened, check valve (4) on air outlet (35) to the outside of air outlet (35) is opened.
5. The indoor heat-dissipation dustproof LED display screen according to claim 4, characterized in that: the check valve (4) comprises a sleeve (41) with an opening at one end and a sealing cover (42) movably arranged along the axial direction of the sleeve (41), an annular baffle (43) is arranged on the inner wall of the opening of the sleeve (41) and radially inwards arranged, the check valve (4) further comprises a spring (44) with one end arranged at the inner end of the sleeve (41) and the other end arranged on the sealing cover (42) to drive the sealing cover (42) to move towards the opening of the sleeve (41) and cover the opening, and a plurality of filtering holes (45) are uniformly distributed on the outer wall of the sleeve (41) along the axial direction and the circumferential direction.
6. The indoor heat-dissipation dustproof LED display screen according to claim 4 or 5, characterized in that: and a drying agent bag (5) close to the air outlet end of the one-way valve (4) is further arranged at the inner port of the air inlet (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922117125.3U CN210722249U (en) | 2019-11-29 | 2019-11-29 | Dustproof LED display screen of indoor heat dissipation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922117125.3U CN210722249U (en) | 2019-11-29 | 2019-11-29 | Dustproof LED display screen of indoor heat dissipation |
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| Publication Number | Publication Date |
|---|---|
| CN210722249U true CN210722249U (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922117125.3U Active CN210722249U (en) | 2019-11-29 | 2019-11-29 | Dustproof LED display screen of indoor heat dissipation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112269427A (en) * | 2020-10-20 | 2021-01-26 | 国网安徽省电力有限公司合肥供电公司 | Multimedia display equipment of business hall |
| CN114512065A (en) * | 2021-12-28 | 2022-05-17 | 江苏聚泰科技有限公司 | Heat-dissipation dustproof display module |
-
2019
- 2019-11-29 CN CN201922117125.3U patent/CN210722249U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112269427A (en) * | 2020-10-20 | 2021-01-26 | 国网安徽省电力有限公司合肥供电公司 | Multimedia display equipment of business hall |
| CN114512065A (en) * | 2021-12-28 | 2022-05-17 | 江苏聚泰科技有限公司 | Heat-dissipation dustproof display module |
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