CN207939204U - Multimedia teaching instrument operating circuit - Google Patents
Multimedia teaching instrument operating circuit Download PDFInfo
- Publication number
- CN207939204U CN207939204U CN201820490100.0U CN201820490100U CN207939204U CN 207939204 U CN207939204 U CN 207939204U CN 201820490100 U CN201820490100 U CN 201820490100U CN 207939204 U CN207939204 U CN 207939204U
- Authority
- CN
- China
- Prior art keywords
- breaker
- output end
- input terminal
- multimedia teaching
- end connects
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
Abstract
The utility model proposes a kind of multimedia teaching instrument operating circuits, the first breaker input terminal is connected including power end, first breaker output end connects surge suppressor input terminal, surge suppressor output end connects the second breaker input terminal, second breaker output end connects voltage-stablizer input terminal, voltage-stablizer cathode output end connects third breaker input terminal, and third breaker output end connects PC terminal anodes, and voltage-stablizer cathode connects PC terminal cathode.Protect PC machine not by breaker and surge suppressor and voltage-stablizer is influenced by abnormal energy fluctuation.
Description
Technical field
The utility model is related to electronic circuit field more particularly to a kind of multimedia teaching instrument operating circuits.
Background technology
Due to being constantly progressive for science and technology, the multimedia teaching facility of school or Large conference center needs a variety of electronics to set
Standby access, so as to meet teaching displaying of the instructor to human-computer interaction and electronic product, but since electronics is set
Standby cost is more and more expensive, if circuit is occurred short circuit or abnormal accident, electronic equipment and may be made due to reason of over-load
At the risk burnt, this just solves corresponding technical problem there is an urgent need for those skilled in the art.
Utility model content
The utility model aims to solve at least the technical problems existing in the prior art, and it is more especially innovatively to propose one kind
Multi media for teaching instrument operating circuit.
In order to realize that the above-mentioned purpose of the utility model, the utility model provide a kind of multimedia teaching instrument work electricity
Road, including：First breaker, surge suppressor, the second breaker, voltage-stablizer, third breaker and PC terminals；
Power end connects the first breaker input terminal, and the first breaker output end connects surge suppressor input terminal, surge
Suppressor output end connects the second breaker input terminal, and the second breaker output end connects voltage-stablizer input terminal, voltage-stablizer anode
Output end connects third breaker input terminal, and third breaker output end connects PC terminal anodes, and it is whole that voltage-stablizer cathode connects PC
Hold cathode.
The multimedia teaching instrument operating circuit, it is preferred that further include：Transformer, the 4th breaker, filter,
Relay, fuse and electronics peripheral hardware；
First breaker output end is also connected with transformer inputs, and transformer output end connects the 4th breaker input terminal,
4th breaker output end connects filter input end, and filter output connects relay normally open contact one end, and relay is normal
Contact other end connection fuse one end is opened, the fuse other end connects electronics peripheral hardware.
The multimedia teaching instrument operating circuit, it is preferred that further include the volt device that goes out, the volt device that goes out is connected to relay
Between device and fuse.
The multimedia teaching instrument operating circuit, it is preferred that first breaker is three-pole breaker.
The multimedia teaching instrument operating circuit, it is preferred that second breaker is the two poles of the earth breaker.
The multimedia teaching instrument operating circuit, it is preferred that the third breaker is single-pole circuit breaker.
In conclusion by adopting the above-described technical solution, the utility model has the beneficial effects that：
Protect PC machine not by breaker and surge suppressor and voltage-stablizer is influenced by abnormal energy fluctuation, to protect
PC normal operation of terminal.
Reduction is adjusted to voltage by transformer, to adapt to the voltage requirements of electronics peripheral hardware, then by filter and
Blow-out device carry out duplicate protection after, can the electronic equipment high to cost protect, prevent electronics peripheral hardware from burning
Risk, to extend its service life.
The additional aspect and advantage of the utility model will be set forth in part in the description, partly will be from following description
In become apparent, or recognized by the practice of the utility model.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination following accompanying drawings to embodiment
Become apparent and is readily appreciated that, wherein：
Fig. 1 is the utility model circuit diagram.
Specific implementation mode
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
As shown in Figure 1, a kind of multimedia teaching instrument operating circuit, including：First breaker, surge suppressor, second
Breaker, voltage-stablizer, third breaker and PC terminals；
Power end connects the first breaker input terminal, and the first breaker output end connects surge suppressor input terminal, surge
Suppressor output end connects the second breaker input terminal, and the second breaker output end connects voltage-stablizer input terminal, voltage-stablizer anode
Output end connects third breaker input terminal, and third breaker output end connects PC terminal anodes, and it is whole that voltage-stablizer cathode connects PC
Hold cathode.Protect PC machine not by breaker and surge suppressor and voltage-stablizer is influenced by abnormal energy fluctuation, to protect
PC normal operation of terminal.Power end anode connects L1, and cathode connects L2, and surge suppressor and transformation are connected by the first breaker
Device connects No. 1 end of filter anode by the electric energy that transformer anode exports, filter is connected by the electric energy that transformer cathode exports
No. 2 ends of wave device cathode, No. 3 ends of filter cathode output end connection relay normally open contact one end, filter cathode output end 4
Then end connection relay normally open contact one end connects electronics peripheral hardware, in PC terminals and voltage-stablizer by fuse with the volt device that goes out
Between positive terminal connection third breaker circuit is protected.
The multimedia teaching instrument operating circuit, it is preferred that further include：Transformer, the 4th breaker, filter,
Relay, fuse and electronics peripheral hardware；
First breaker output end is also connected with transformer inputs, and transformer output end connects the 4th breaker input terminal,
4th breaker output end connects filter input end, and filter output connects relay normally open contact one end, and relay is normal
Contact other end connection fuse one end is opened, the fuse other end connects electronics peripheral hardware.Voltage is adjusted by transformer
It reduces, it, can be to making to adapt to the voltage requirements of electronics peripheral hardware, then after carrying out duplicate protection by filter and blow-out device
The high electronic equipment of valence is protected, the risk for preventing electronics peripheral hardware from burning, to extend its service life.
The multimedia teaching instrument operating circuit, it is preferred that further include the volt device that goes out, the volt device that goes out is connected to relay
Between device and fuse.The volt device that goes out is protected using fuse element.
The multimedia teaching instrument operating circuit, it is preferred that first breaker is three-pole breaker.Use three
Pole breaker can in real time be replaced in the case where voltage requirements are 380V forceful electric power states, without in addition configuring breaker again, and
And under forceful electric power state, the protection of electronic equipment can be also carried out.
The multimedia teaching instrument operating circuit, it is preferred that second breaker and the 4th breaker are the two poles of the earth
Breaker.
The multimedia teaching instrument operating circuit, it is preferred that the third breaker is single-pole circuit breaker.
The electronics peripheral hardware includes the equipment such as projecting apparatus, VR equipment, AR equipment or wireless MIC.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that：
Can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and objective, modification, replaced
And modification, the scope of the utility model are limited by claim and its equivalent.
Claims (6)
1. a kind of multimedia teaching instrument operating circuit, which is characterized in that including：First breaker, surge suppressor, second are broken
Road device, voltage-stablizer, third breaker and PC terminals；
Power end connects the first breaker input terminal, and the first breaker output end connects surge suppressor input terminal, Surge suppression
Device output end connects the second breaker input terminal, and the second breaker output end connects voltage-stablizer input terminal, the output of voltage-stablizer anode
End connection third breaker input terminal, third breaker output end connect PC terminal anodes, and it is negative that voltage-stablizer cathode connects PC terminals
Pole.
2. multimedia teaching instrument operating circuit according to claim 1, which is characterized in that further include：Transformer, the 4th
Breaker, filter, relay, fuse and electronics peripheral hardware；
First breaker output end is also connected with transformer inputs, and transformer output end connects the 4th breaker input terminal, and the 4th
Breaker output end connects filter input end, and filter output connects relay normally open contact one end, and relay normally open touches
Point other end connection fuse one end, the fuse other end connect electronics peripheral hardware.
3. multimedia teaching instrument operating circuit according to claim 2, which is characterized in that further include the volt device that goes out, it is described
The volt device that goes out is connected between relay and fuse.
4. multimedia teaching instrument operating circuit according to claim 1, which is characterized in that first breaker is three
Pole breaker.
5. multimedia teaching instrument operating circuit according to claim 1, which is characterized in that second breaker is two
Pole breaker.
6. multimedia teaching instrument operating circuit according to claim 1, which is characterized in that the third breaker is single
Pole breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820490100.0U CN207939204U (en) | 2018-04-09 | 2018-04-09 | Multimedia teaching instrument operating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820490100.0U CN207939204U (en) | 2018-04-09 | 2018-04-09 | Multimedia teaching instrument operating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207939204U true CN207939204U (en) | 2018-10-02 |
Family
ID=63656653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820490100.0U Expired - Fee Related CN207939204U (en) | 2018-04-09 | 2018-04-09 | Multimedia teaching instrument operating circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207939204U (en) |
-
2018
- 2018-04-09 CN CN201820490100.0U patent/CN207939204U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181002 Termination date: 20190409 |