CN107085979A - Multimedia overhead projector equipment is used in one kind teaching - Google Patents
Multimedia overhead projector equipment is used in one kind teaching Download PDFInfo
- Publication number
- CN107085979A CN107085979A CN201710405112.9A CN201710405112A CN107085979A CN 107085979 A CN107085979 A CN 107085979A CN 201710405112 A CN201710405112 A CN 201710405112A CN 107085979 A CN107085979 A CN 107085979A
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- Prior art keywords
- parts
- cabinet
- projector equipment
- overhead projector
- multimedia overhead
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
-
- 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
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Human Computer Interaction (AREA)
- General Engineering & Computer Science (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a kind of teaching multimedia overhead projector equipment, it includes being provided with host computer in the cabinet being arranged on dais, described cabinet, and described host computer is fixed in cabinet by buffer unit；Intermediate course is provided with the tank wall of cabinet, coolant is filled with intermediate course, and be provided with intermediate course in semiconductor refrigeration chip, the refrigeration end immersion coolant of semiconductor refrigeration chip, the outside for heating end position cabinet tank wall of semiconductor refrigeration chip；Described semiconductor refrigeration chip is connected to power supply by electromagnetic relay, described electromagnetic relay is connected to the output end of microcontroller, the input of microcontroller is connected with temperature sensor, described temperature sensor is arranged at cabinet inside, some abatvoixs are provided with the inwall of described cabinet, the irregular spread configuration of abatvoix is on the inwall of cabinet.
Description
Technical field
The invention belongs to school instruction equipment technical field, it is related to a kind of multimedia teaching facility, especially a kind of teaching
Use multimedia overhead projector equipment.
Background technology
Multimedia overhead projector equipment, with equipment of giving lessons, is widely used as one kind teaching in school and college.It is existing
Multimedia overhead projector equipment, generally includes to be arranged on setting host computer in the projector equipment cabinet at dais, cabinet, and host computer leads to
Cross Serial Port Line and be connected with display screen and projecting apparatus, display screen is embedded in cabinet, projecting apparatus is lifted on classroom ceiling, projecting apparatus
Projected picture deliver on the painting canvas in front of classroom；Described host computer is also associated with mouse, keyboard.
Multimedia overhead projector equipment of the prior art causes host computer and display screen to exist due to the good airproof performance of cabinet
The heat produced in running can not be distributed in time, and the heat of aggregation causes the temperature drift in cabinet in cabinet, easily draws
The damage of generating brain server or display screen internal circuit.In addition, host computer of the prior art is only simple fixation
In cabinet inside, it is impossible to influence when being prevented effectively from external shock to host computer；Host computer is caused to receive the shadow of external shock
Ring serious, it is most likely that cause circuit board to be damaged, influence main frame normal work.In addition, host computer is produced in the process of running
Noise effect give lessons process.This is weak point of the prior art.
Therefore, for technical problem of the prior art, there is provided design a kind of teaching multimedia overhead projector equipment；To solve
Above-mentioned technical problem, is necessary.
The content of the invention
It is an object of the present invention in view of the above-mentioned drawbacks of the prior art, provide design a kind of teaching multimedia
Projector equipment, to solve above-mentioned technical problem.
To achieve the above object, the present invention provides following technical scheme：
Multimedia overhead projector equipment is used in one kind teaching, and it includes being provided with computer in the cabinet being arranged on dais, described cabinet
Main frame, described host computer is connected with projecting apparatus and display screen by Serial Port Line, and projecting apparatus is lifted on the ceiling of classroom, throws
The dispensing picture of shadow instrument is thrown on the curtain being arranged in front of classroom, and display screen is embedded in cabinet, described host computer
It is also associated with keyboard and mouse；Characterized in that, described host computer is also associated with USB interface, described USB interface is set
In enclosure top, it is easy to circumscribed USB equipment；Described host computer is fixed in cabinet by buffer unit；
It is provided with the tank wall of cabinet in intermediate course, intermediate course and is filled with coolant, and is provided with partly in intermediate course
In conductor refrigerating chip, the refrigeration end immersion coolant of semiconductor refrigeration chip, semiconductor refrigeration chip heats end position machine
The outside of case tank wall；
Described semiconductor refrigeration chip is connected to power supply by electromagnetic relay, and described electromagnetic relay is connected to micro-
The output end of controller, the input of microcontroller is connected with temperature sensor, and described temperature sensor is arranged in cabinet
Portion, to gather the temperature value in cabinet, and is sent to microcontroller, the temperature that microcontroller is collected according to temperature sensor
Information is controlled to electromagnetic relay, so as to control the working condition of semiconductor refrigeration chip；
Some abatvoixs are provided with the inwall of described cabinet, the irregular spread configuration of abatvoix is on the inwall of cabinet；
Described buffer unit includes the buffer board being arranged in cabinet, and the bottom corner of buffer board is provided with spacing collar, institute
The spacing collar stated is engaged with the gag lever post being arranged on cabinet bottom wall, is provided between described gag lever post and spacing collar
Anti-slip rubber layer is additionally provided with air bag, the inwall of spacing collar, to strengthen the coefficient of friction between gag lever post and spacing collar；
The formula of described anti-slip rubber layer is made up of the material of following mass parts：
10-15 parts of natural rubber；
8-12 parts of nitrile rubber；
3-5 parts of magnesium chloride；
0.5-0.8 parts of zinc powder；
0.4-0.7 parts of glass fibre；
0.7-1.1 parts of polyvinyl-maleic anhydride；
0.6-0.9 parts of PPO powder；
1.2-1.6 parts of antimony oxide；
1.3-1.7 parts of white carbon；
1.5-1.8 parts of vulcanizing agent.
Preferably, described abatvoix is slag cotton abatvoix.
Preferably, the thickness of described anti-slip rubber layer is 2-4mm.
Preferably, the thickness of described anti-slip rubber layer is 3mm.
Preferably, being additionally provided with non-slip process on described anti-slip rubber layer.
Preferably, described microcontroller is singlechip controller.
Preferably, the formula of described anti-slip rubber layer is made up of the material of following mass parts：
13 parts of natural rubber；
10 parts of nitrile rubber；
4 parts of magnesium chloride；
0.6 part of zinc powder；
0.5 part of glass fibre；
0.9 part of polyvinyl-maleic anhydride；
0.7 part of PPO powder；
1.4 parts of antimony oxide；
1.5 parts of white carbon；
1.6 parts of vulcanizing agent.
Coolant in the technical program can select water.
The beneficial effects of the present invention are fill coolant by setting intermediate course, and in intermediate course, pass through drop
The temperature of low coolant absorbs the heat in cabinet, to realize the purpose of reduction temperature in chassis；By setting abatvoix energy
It is enough effectively to absorb the noise produced in cabinet, improve teaching quality.
By setting buffer unit effectively to reduce influence of the external shock to host computer；Using the technology of the present invention side
The obtained anti-slip rubber layer of anti-slip rubber formula described in case, not only with good skidproof effect, and has well
Wearability.In addition, design principle of the present invention is reliable, and it is simple in construction, with application prospect widely.
As can be seen here, the present invention compared with prior art, with substantive distinguishing features and progress, its beneficial effect implemented
It is obvious.
Brief description of the drawings
Fig. 1 is a kind of structural representation for teaching multimedia overhead projector equipment that the present invention is provided.
Fig. 2 is the structural representation of buffer unit in Fig. 1.
Fig. 3 is a kind of control principle drawing for teaching multimedia overhead projector equipment that the present invention is provided.
Wherein, 1- cabinets, 2- host computers, 3- display screens, 4-USB interfaces, 5- buffer units, 6- intermediate courses, 7- half
Conductor refrigerating chip, 8- electromagnetic relays, 9- power supplies, 10- microcontrollers, 11- temperature sensors, 12- abatvoixs, 5.1-
Buffer board, 5.2- spacing collars, 5.3- gag lever posts, 5.4- air bags, 5.5- anti-slip rubbers layer.
Embodiment
Below in conjunction with the accompanying drawings and the present invention will be described in detail by specific embodiment, following examples are to the present invention
Explanation, and the invention is not limited in implementation below.
As Figure 1-3, a kind of teaching multimedia overhead projector equipment that the present invention is provided, it includes being arranged on dais
Host computer 2 is installed, described host computer 2 is connected with projecting apparatus and aobvious by Serial Port Line in cabinet 1, described cabinet 1
Display screen 3, projecting apparatus is lifted on the ceiling of classroom, and the dispensing picture of projecting apparatus is thrown on the curtain being arranged in front of classroom,
Display screen is embedded in cabinet, and described host computer is also associated with keyboard and mouse；Characterized in that, described host computer
USB interface 4 is also associated with, described USB interface 4 is arranged at the top of cabinet 1, is easy to circumscribed USB equipment；Described host computer
2 are fixed in cabinet 1 by buffer unit 5；
It is provided with the tank wall of cabinet 1 in intermediate course 6, intermediate course 6 and is filled with coolant, and is set in intermediate course 6
Have in semiconductor refrigeration chip 7, the refrigeration end immersion coolant of semiconductor refrigeration chip 7, the heating end of semiconductor refrigeration chip 7
The outside of the tank wall of position cabinet 1；
Described semiconductor refrigeration chip 7 is connected to power supply 9 by electromagnetic relay 8, and described electromagnetic relay 8 is connected
To the output end of microcontroller 10, the input of microcontroller 10 is connected with temperature sensor 11, described temperature sensor 11
It is arranged inside cabinet 1, to gather the temperature value in cabinet 1, and is sent to microcontroller 10, microcontroller 10 is according to temperature
The temperature information that sensor 11 is collected is controlled to electromagnetic relay 8, so as to control the work shape of semiconductor refrigeration chip 7
State；
Some abatvoixs 12 are provided with the inwall of described cabinet 1, the irregular spread configuration of abatvoix 12 is in cabinet 1
On wall；
Described buffer unit 5 includes the buffer board 5.1 being arranged in cabinet, and the bottom corner of buffer board 5.1 sets limited location
Sleeve 5.2, described spacing collar 5.2 is engaged with the gag lever post 5.3 being arranged on cabinet bottom wall, described gag lever post 5.3
It is provided between spacing collar 5.2 on air bag 5.4, the inwall of spacing collar 5.2 and is additionally provided with anti-slip rubber layer 5.5, increases
Strong coefficient of friction between gag lever post 5.3 and spacing collar 5.2；
The formula of described anti-slip rubber layer is made up of the material of following mass parts：
10 parts of natural rubber；
8 parts of nitrile rubber；
3 parts of magnesium chloride；
0.5 part of zinc powder；
0.4 part of glass fibre；
0.7 part of polyvinyl-maleic anhydride；
0.6 part of PPO powder；
1.2 parts of antimony oxide；
1.3 parts of white carbon；
1.5 parts of vulcanizing agent.
In the present embodiment, described abatvoix 12 is slag cotton abatvoix.
The thickness of described anti-slip rubber layer 5.5 is 2mm.
Non-slip process is additionally provided with described anti-slip rubber layer 5.5.
Described microcontroller 10 is singlechip controller.
In another embodiment, the formula of described anti-slip rubber layer is made up of the material of following mass parts：
13 parts of natural rubber；
10 parts of nitrile rubber；
4 parts of magnesium chloride；
0.6 part of zinc powder；
0.5 part of glass fibre；
0.9 part of polyvinyl-maleic anhydride；
0.7 part of PPO powder；
1.4 parts of antimony oxide；
1.5 parts of white carbon；
1.6 parts of vulcanizing agent
The thickness of described anti-slip rubber layer is 3mm.
In another embodiment, the formula of described anti-slip rubber layer is made up of the material of following mass parts：
15 parts of natural rubber；
12 parts of nitrile rubber；
5 parts of magnesium chloride；
0.8 part of zinc powder；
0.7 part of glass fibre；
1.1 parts of polyvinyl-maleic anhydride；
0.9 part of PPO powder；
1.6 parts of antimony oxide；
1.7 parts of white carbon；
1.8 parts of vulcanizing agent；
The thickness of described anti-slip rubber layer is 4mm.
Coolant in the technical program can select water.
Disclosed above is only the preferred embodiment of the present invention, but the present invention is not limited to this, any this area
What technical staff can think does not have a creative change, and some improvement made without departing from the principles of the present invention and
Retouching, should all be within the scope of the present invention.
Claims (7)
1. multimedia overhead projector equipment is used in one kind teaching, it includes being provided with electricity in the cabinet being arranged on dais, described cabinet
Brain server, described host computer is connected with projecting apparatus and display screen by Serial Port Line, and projecting apparatus is lifted on the ceiling of classroom,
The dispensing picture of projecting apparatus is thrown on the curtain being arranged in front of classroom, and display screen is embedded in cabinet, described computer master
Machine is also associated with keyboard and mouse；Characterized in that, described host computer is also associated with USB interface, described USB interface is set
It is placed in enclosure top；Described host computer is fixed in cabinet by buffer unit；
It is provided with the tank wall of cabinet in intermediate course, intermediate course and is filled with coolant, and is provided with partly in intermediate course
In conductor refrigerating chip, the refrigeration end immersion coolant of semiconductor refrigeration chip, semiconductor refrigeration chip heats end position machine
The outside of case tank wall；
Described semiconductor refrigeration chip is connected to power supply by electromagnetic relay, and described electromagnetic relay is connected to micro-
The output end of controller, the input of microcontroller is connected with temperature sensor, and described temperature sensor is arranged in cabinet
Portion；
Some abatvoixs are provided with the inwall of described cabinet, the irregular spread configuration of abatvoix is on the inwall of cabinet；
Described buffer unit includes the buffer board being arranged in cabinet, and the bottom corner of buffer board is provided with spacing collar, institute
The spacing collar stated is engaged with the gag lever post being arranged on cabinet bottom wall, is provided between described gag lever post and spacing collar
Anti-slip rubber layer is additionally provided with air bag, the inwall of spacing collar；
The formula of described anti-slip rubber layer is made up of the material of following mass parts：
10-15 parts of natural rubber；
8-12 parts of nitrile rubber；
3-5 parts of magnesium chloride；
0.5-0.8 parts of zinc powder；
0.4-0.7 parts of glass fibre；
0.7-1.1 parts of polyvinyl-maleic anhydride；
0.6-0.9 parts of PPO powder；
1.2-1.6 parts of antimony oxide；
1.3-1.7 parts of white carbon；
1.5-1.8 parts of vulcanizing agent.
2. multimedia overhead projector equipment is used in a kind of teaching according to claim 1, it is characterised in that described abatvoix is ore deposit
Slag wool abatvoix.
3. multimedia overhead projector equipment is used in a kind of teaching according to claim 1 or 2, it is characterised in that described anti-skidding rubber
The thickness of glue-line is 2-4mm.
4. multimedia overhead projector equipment is used in a kind of teaching according to claim 3, it is characterised in that described anti-slip rubber layer
Thickness be 3mm.
5. multimedia overhead projector equipment is used in a kind of teaching according to claim 4, it is characterised in that described anti-slip rubber layer
On be additionally provided with non-slip process.
6. multimedia overhead projector equipment is used in a kind of teaching according to claim 5, it is characterised in that described microcontroller is
Singlechip controller.
7. multimedia overhead projector equipment is used in a kind of teaching according to claim 6, it is characterised in that described anti-slip rubber layer
Formula be made up of the material of following mass parts：
13 parts of natural rubber；
10 parts of nitrile rubber；
4 parts of magnesium chloride；
0.6 part of zinc powder；
0.5 part of glass fibre；
0.9 part of polyvinyl-maleic anhydride；
0.7 part of PPO powder；
1.4 parts of antimony oxide；
1.5 parts of white carbon；
1.6 parts of vulcanizing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710405112.9A CN107085979A (en) | 2017-06-01 | 2017-06-01 | Multimedia overhead projector equipment is used in one kind teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710405112.9A CN107085979A (en) | 2017-06-01 | 2017-06-01 | Multimedia overhead projector equipment is used in one kind teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107085979A true CN107085979A (en) | 2017-08-22 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710405112.9A Pending CN107085979A (en) | 2017-06-01 | 2017-06-01 | Multimedia overhead projector equipment is used in one kind teaching |
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| Country | Link |
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| CN (1) | CN107085979A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107945394A (en) * | 2017-12-25 | 2018-04-20 | 山东联星能源集团有限公司 | Five in one new energy sells demonstration centre self-help serving system |
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2017
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| CN104356521A (en) * | 2014-09-30 | 2015-02-18 | 青岛桐晟桐橡塑科技有限公司 | Environment-friendly skidproof rubber formula |
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| CN105949537A (en) * | 2016-05-17 | 2016-09-21 | 青岛双星轮胎工业有限公司 | wear-resistant rubber composition for tire bead of fire truck |
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|---|---|---|---|---|
| CN107945394A (en) * | 2017-12-25 | 2018-04-20 | 山东联星能源集团有限公司 | Five in one new energy sells demonstration centre self-help serving system |
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| PB01 | Publication | ||
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Application publication date: 20170822 |