CN206848393U - One kind has overvoltage, excessively stream and earth leakage protective safety-type electrical engineering laboratory desk - Google Patents
One kind has overvoltage, excessively stream and earth leakage protective safety-type electrical engineering laboratory desk Download PDFInfo
- Publication number
- CN206848393U CN206848393U CN201720789966.7U CN201720789966U CN206848393U CN 206848393 U CN206848393 U CN 206848393U CN 201720789966 U CN201720789966 U CN 201720789966U CN 206848393 U CN206848393 U CN 206848393U
- Authority
- CN
- China
- Prior art keywords
- output end
- input
- electrically connected
- unit
- electrical engineering
- 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
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses one kind to have overvoltage, excessively stream and earth leakage protective safety-type electrical engineering laboratory desk; including electric circuit inspection unit; the output end of the electric circuit inspection unit and the input of Circuit verification unit are electrically connected with, and the output end of Circuit verification unit and the input of feedback unit are electrically connected with.There should be overvoltage, excessively stream and earth leakage protective safety-type electrical engineering laboratory desk, can be to the actual voltage value of the electrical engineering laboratory desk, actual current value and electric leakage situation are detected respectively, so as to avoid the electrical engineering laboratory desk spread of voltage, the generation for phenomena such as electric current is unstable and leaks electricity, the electrical engineering laboratory desk is provided simultaneously with overvoltage, excessively stream and earth leakage protective, have a safety feature, specific aim solution can be carried out to the electrical engineering laboratory desk produced problem, the Circuit management of the electrical engineering laboratory desk is more for changing, light warning and phonetic warning can be carried out to unusual condition, the effective generation for avoiding potential safety hazard, using more convenient.
Description
Technical field
Electrical engineering laboratory desk technical field is the utility model is related to, is specially a kind of with over-pressed, excessively stream and earth leakage protective
Safety-type electrical engineering laboratory desk.
Background technology
Electrician refers to the objective law of research electromagnetic arts and its science and technology of application, and power generation and electrician's manufacture
Two big industrial production systems, experiment refers to one of basic skills of scientific research, according to the purpose of scientific research, as much as possible
External influence is excluded, prominent principal element simultaneously utilizes some special instrument and equipments, and artificially changes, controls or simulate and grind
Study carefully object, certain some things is occurred or is reproduced, so as to go to know natural environment appearance, natural property and the natural law, Experiment of Electrical Engineering
Platform is one of common Experiment of Electrical Engineering equipment.
In use, easily there is the unstable phenomenon of voltage and current, or even can go out in existing electrical engineering laboratory desk
The problem of now leaking electricity, security performance is poor, therefore, it is proposed that a kind of have overvoltage, excessively stream and earth leakage protective safety electric
Work experimental bench.
Utility model content
（One）The technical problem of solution
In view of the shortcomings of the prior art, the utility model provides a kind of with overvoltage, excessively stream and earth leakage protective safety
Type electrical engineering laboratory desk, solve the problems, such as that existing electrical engineering laboratory desk security performance is poor.
（Two）Technical scheme
To achieve the above object, the utility model provides following technical scheme：One kind has overvoltage, excessively stream and earth leakage protective
Safety-type electrical engineering laboratory desk, including electric circuit inspection unit, the output end of the electric circuit inspection unit and Circuit verification unit
Input is electrically connected with, and the output end of the Circuit verification unit and the input of feedback unit are electrically connected with, the circuit inspection
Surveying unit includes voltage transformer, current transformer and leakage detector, and the Circuit verification unit includes voltage verification module
With current verification module, the feedback unit includes feedback module one and feedback module two, the output end of the feedback unit and
The input of microprocessor is electrically connected with.
The output end of the leakage detector and the input of microprocessor are electrically connected with, the input of the microprocessor
It is electrically connected with the output end of power module, the output end of the microprocessor and the input of Circuit verification unit electrically connect
Connect, the output end of the microprocessor and the input of node unit are electrically connected with.
The input of the output end of the node unit and execution unit is electrically connected with, the output end of the microprocessor and
The input of intelligent terminal is electrically connected with, and the intelligent terminal includes circuit configuration unit, display screen and alarm unit, the electricity
The output end of road setup unit is electrically connected with the input of voltage setting module and the input of current settings module respectively, institute
The output end of the output end and current settings module of stating voltage setting module is electrically connected with the input of microprocessor.
Preferably, the input of the output end of the voltage transformer and voltage verification module is electrically connected with, the voltage
The output end of authentication module and the input of feedback module one are electrically connected with.
Preferably, the input of the output end of the current transformer and current verification module is electrically connected with, the electric current
The output end of authentication module and the input of feedback module two are electrically connected with.
Preferably, the node unit includes control node one, control node two and control node three, the execution unit
Including overvoltage protector, air switch and earth leakage protective device.
Preferably, the input of the output end of the control node one and overvoltage protector is electrically connected with, the control section
The output end of point two and the input of air switch are electrically connected with, the output end of the control node three and earth leakage protective device it is defeated
Enter end to be electrically connected with.
Preferably, the output end of the alarm unit electrically connects with the input of warning lamp and the input of buzzer respectively
Connect.
（Three）Beneficial effect
The utility model provide it is a kind of there is overvoltage, excessively stream and earth leakage protective safety-type electrical engineering laboratory desk, possess with
Lower beneficial effect：
（1）Should be with overvoltage, excessively stream and earth leakage protective safety-type electrical engineering laboratory desk, by being provided with circuit configuration list
Member, can be to the load voltage value of the electrical engineering laboratory desk and specified in the presence of voltage setting module and current settings module
Current value is set, by being provided with electric circuit inspection unit, actual voltage value, actual current that can be to the electrical engineering laboratory desk
Value and electric leakage situation detected respectively, so as to avoid the electrical engineering laboratory desk spread of voltage, electric current it is unstable and electric leakage etc.
The generation of phenomenon, the electrical engineering laboratory desk are provided simultaneously with overvoltage, excessively stream and earth leakage protective, had a safety feature.
（2）Should be with overvoltage, excessively stream and earth leakage protective safety-type electrical engineering laboratory desk, by being provided with node unit and holding
Row unit, specific aim solution can be carried out to the electrical engineering laboratory desk produced problem, the Circuit management of the electrical engineering laboratory desk is more
For changing, by being provided with alarm unit, light warning and phonetic warning can be carried out to unusual condition, effectively avoid peace
The generation of full hidden danger, use are more convenient.
Brief description of the drawings
Fig. 1 is the utility model electric circuit inspection unit control system figure；
Fig. 2 is the utility model intelligent terminal control system figure.
In figure：1 electric circuit inspection unit, 2 voltage transformers, 3 current transformers, 4 leakage detectors, 5 Circuit verification units,
6 voltage verification modules, 7 current verification modules, 8 feedback units, 9 feedback modules one, 10 feedback modules two, 11 node units, 12
Control node one, 13 control nodes two, 14 control nodes three, 15 power modules, 16 microprocessors, 17 execution units, 18 overvoltages
Protector, 19 air switches, 20 earth leakage protective devices, 21 intelligent terminals, 22 circuit configuration units, 23 display screens, 24 alarm units,
25 voltage setting modules, 26 current settings modules, 27 warning lamps, 28 buzzers.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-2 is referred to, the utility model provides a kind of technical scheme：It is a kind of with over-pressed, excessively stream and earth leakage protective
Safety-type electrical engineering laboratory desk, including electric circuit inspection unit 1, the output end of electric circuit inspection unit 1 and the input of Circuit verification unit 5
End is electrically connected with, and the output end of Circuit verification unit 5 and the input of feedback unit 8 are electrically connected with, and electric circuit inspection unit 1 includes
Voltage transformer 2, current transformer 3 and leakage detector 4, voltage transformer 2 are primarily used to measuring instrumentss and relay guarantor
Protection unit is powered, and for the voltage, power and electric energy of measurement circuitry, the virtual voltage of electrical engineering laboratory desk can be examined in real time
To survey, current transformer 3 is the instrument that primary side high current is converted into secondary side low current according to electromagnetic induction principle to measure,
The actual current of electrical engineering laboratory desk can be detected in real time, leakage detector 4 can detect the dynamic of current mode earth leakage protector
Make electric current and detection is less than the uneven leakage current of current mode earth leakage protector action, moreover it is possible to distinguish harmful leakage
Voltage and harmless induced voltage, the leaky of electrical appliance can be effectively detected, can be to the leakage of electrical engineering laboratory desk
Electrical phenomena is detected in real time, and voltage transformer 2, current transformer 3 and leakage detector 4 are the electricity well known to prior art
Gas equipment, for person skilled in the art, its structure and principle are clearly complete, therefore, no longer to above-mentioned electricity
Gas equipment is excessively described, and Circuit verification unit 5 includes voltage verification module 6 and current verification module 7, and feedback unit 8 wraps
Feedback module 1 and feedback module 2 10 are included, the output end of voltage transformer 2 and the input of voltage verification module 6 electrically connect
Connect, the output end of voltage verification module 6 and the input of feedback module 1 are electrically connected with, the output end and electricity of current transformer 3
The input of flow verification module 7 is electrically connected with, and the output end of current verification module 7 and the input of feedback module 2 10 electrically connect
Connect, the actual voltage value and actual current value of electrical engineering laboratory desk can effectively be verified, when the reality of the electrical engineering laboratory desk
When border magnitude of voltage and actual current value occur abnormal, timely feedback of the information, the output end and Wei Chu of feedback unit 8 can be carried out
The input for managing device 16 is electrically connected with.
The output end of leakage detector 4 and the input of microprocessor 16 are electrically connected with, and microprocessor 16 is by a piece of or few
The central processing unit of number several large scale integrated circuits composition, microprocessor 16 can complete acquisition instruct, execute instruction and with
Extraneous memory and logical block exchange the operation such as information, are the operation control parts of microcomputer, the type of microprocessor 16
Number it is Core-I7 processors, has the advantages that reaction speed is fast, buffer memory capacity is big and stability is good, ensure that the control system
The normal use of system, electrical engineering laboratory desk can be effectively protected, the input of microprocessor 16 and power module 15
Output end is electrically connected with, and the output end of microprocessor 16 and the input of Circuit verification unit 5 are electrically connected with, microprocessor 16
The input of output end and node unit 11 is electrically connected with.
The output end of node unit 11 and the input of execution unit 17 are electrically connected with, and node unit 11 includes control node
One 12, control node 2 13 and control node 3 14, execution unit 17, which includes overvoltage protector 18, air switch 19 and electric leakage, to be protected
Device 20 is protected, overvoltage protector 18 is the equipment for voltage overload protection, when it enters setting state, the relay in protection
It can automatically discharge, the abnormal voltage of the electrical engineering laboratory desk can effectively be controlled, air switch 19 also known as air break
Device, can be to the different of the electrical engineering laboratory desk as long as being that electric current exceedes the switch that rated current will disconnect automatically in a kind of circuit
Normal electric current is effectively controlled, and the abbreviation leakage switch of earth leakage protective device 20, is called RCCB, is primarily used in equipment
During generation leak current fault and to there is the personal electrical shock protection of fatal risk, there is overload and short-circuit protection function, can be used to protect
Overload and the short circuit of circuit or motor are protected, can also start under normal circumstances as the infrequently conversion of circuit and be used, can
The abnormal electrical leakage problems of the electrical engineering laboratory desk are effectively controlled, the electrical engineering laboratory desk is provided simultaneously with overvoltage, excessively stream and leakage
Electric protection, have a safety feature, overvoltage protector 18, air switch 19 and earth leakage protective device 20 are the electricity well known to prior art
Gas equipment, for person skilled in the art, its structure and principle are clearly complete, therefore, no longer to above-mentioned electricity
Gas equipment is excessively described, and the output end of control node 1 and the input of overvoltage protector 18 are electrically connected with, control section
The output end of point 2 13 and the input of air switch 19 are electrically connected with, the output end and earth leakage protective device 20 of control node 3 14
Input be electrically connected with, can to the electrical engineering laboratory desk produced problem carry out specific aim solution, the electricity of the electrical engineering laboratory desk
Road management is more for changing, and the output end of microprocessor 16 and the input of intelligent terminal 21 are electrically connected with, and intelligent terminal 21 wraps
Include circuit configuration unit 22, display screen 23 and alarm unit 24, the output end input with warning lamp 27 respectively of alarm unit 24
The input of end and buzzer 28 is electrically connected with, and can be carried out light warning and phonetic warning to unusual condition, effectively be avoided
The generation of potential safety hazard, use is more convenient, and the output end of circuit configuration unit 22 is defeated with voltage setting module 25 respectively
The input for entering end and current settings module 26 is electrically connected with, the output end of voltage setting module 25 and current settings module 26
Output end is electrically connected with the input of microprocessor 16.
In use, at circuit configuration unit 22, load voltage value and load current value to the electrical engineering laboratory desk are carried out
Setting, and load voltage value and load current value are used as to by the reception and registration of microprocessor 16 the checking base of Circuit verification unit 5
Plinth value, at electric circuit inspection unit 1, the actual voltage value of the electrical engineering laboratory desk, actual current value and electric leakage situation are divided
Do not detect, when there is leaky, electric leakage information can be directly conveyed to microprocessor 16, at Circuit verification unit 5, meeting
The specified electricity that the actual voltage value and actual current value that electric circuit inspection unit 1 is detected are set with circuit configuration unit 22 respectively
Pressure value and load current value are verified, when actual voltage value and actual current value are not inconsistent with load voltage value and load current value
During conjunction, feedback unit 8 can feed back to microprocessor 16 to the checking information, and now, microprocessor 16 can enter to node unit 11
The corresponding instruction issuing of row, overvoltage protector 18, air switch 19 and earth leakage protective device 20 in execution unit 17 can be according to sections
The instruction of dot element 11 is worked accordingly, and at the same time, alarm unit 24 carries out light warning and voice to unusual condition
Warning.
The correlation module being related in the system is hardware system module or is prior art Computer Software journey
The functional module that sequence or agreement are combined with hardware, computer software programs or agreement involved by the functional module itself
The technology being well known to those skilled in the art, it is not the improvements of the system, and the system is improved between each module
Interaction relationship or annexation, as the overall construction of system is improved, solved to solve the system
Relevant art problem.
In summary, should be set with overvoltage, excessively stream and earth leakage protective safety-type electrical engineering laboratory desk by being provided with circuit
Order member 22, can be to the specified electricity of the electrical engineering laboratory desk in the presence of voltage setting module 25 and current settings module 26
Pressure value and load current value are set, can be to the virtual voltage of the electrical engineering laboratory desk by being provided with electric circuit inspection unit 1
Value, actual current value and electric leakage situation are detected respectively, unstable so as to avoid the electrical engineering laboratory desk spread of voltage, electric current
The generation of phenomena such as fixed and electric leakage, the electrical engineering laboratory desk are provided simultaneously with overvoltage, excessively stream and earth leakage protective, have a safety feature, pass through
Node unit 11 and execution unit 17 are provided with, specific aim solution, the electricity can be carried out to the electrical engineering laboratory desk produced problem
The Circuit management of work experimental bench is more for changing, and by being provided with alarm unit 24, can carry out light warning to unusual condition
And phonetic warning, the generation of potential safety hazard is effectively avoided, use is more convenient.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (6)
1. one kind has overvoltage, excessively stream and earth leakage protective safety-type electrical engineering laboratory desk, including electric circuit inspection unit（1）, it is special
Sign is：The electric circuit inspection unit（1）Output end and Circuit verification unit（5）Input be electrically connected with, the circuit
Authentication unit（5）Output end and feedback unit（8）Input be electrically connected with, the electric circuit inspection unit（1）Including voltage
Transformer（2）, current transformer（3）And leakage detector（4）, the Circuit verification unit（5）Including voltage verification module（6）
With current verification module（7）, the feedback unit（8）Including feedback module one（9）With feedback module two（10）, the feedback
Member（8）Output end and microprocessor（16）Input be electrically connected with；
The leakage detector（4）Output end and microprocessor（16）Input be electrically connected with, the microprocessor（16）
Input and power module（15）Output end be electrically connected with, the microprocessor（16）Output end and Circuit verification unit
（5）Input be electrically connected with, the microprocessor（16）Output end and node unit（11）Input be electrically connected with；
The node unit（11）Output end and execution unit（17）Input be electrically connected with, the microprocessor（16）'s
Output end and intelligent terminal（21）Input be electrically connected with, the intelligent terminal（21）Including circuit configuration unit（22）, it is aobvious
Display screen（23）And alarm unit（24）, the circuit configuration unit（22）Output end respectively with voltage setting module（25）It is defeated
Enter end and current settings module（26）Input be electrically connected with, the voltage setting module（25）Output end and current settings
Module（26）Output end and microprocessor（16）Input be electrically connected with.
It is 2. according to claim 1 a kind of with overvoltage, excessively stream and earth leakage protective safety-type electrical engineering laboratory desk, its feature
It is：The voltage transformer（2）Output end and voltage verification module（6）Input be electrically connected with, the voltage verification
Module（6）Output end and feedback module one（9）Input be electrically connected with.
It is 3. according to claim 1 a kind of with overvoltage, excessively stream and earth leakage protective safety-type electrical engineering laboratory desk, its feature
It is：The current transformer（3）Output end and current verification module（7）Input be electrically connected with, the current verification
Module（7）Output end and feedback module two（10）Input be electrically connected with.
It is 4. according to claim 1 a kind of with overvoltage, excessively stream and earth leakage protective safety-type electrical engineering laboratory desk, its feature
It is：The node unit（11）Including control node one（12）, control node two（13）With control node three（14）, it is described to hold
Row unit（17）Including overvoltage protector（18）, air switch（19）And earth leakage protective device（20）.
It is 5. according to claim 4 a kind of with overvoltage, excessively stream and earth leakage protective safety-type electrical engineering laboratory desk, its feature
It is：The control node one（12）Output end and overvoltage protector（18）Input be electrically connected with, the control node
Two（13）Output end and air switch（19）Input be electrically connected with, the control node three（14）Output end and electric leakage
Protector（20）Input be electrically connected with.
It is 6. according to claim 1 a kind of with overvoltage, excessively stream and earth leakage protective safety-type electrical engineering laboratory desk, its feature
It is：The alarm unit（24）Output end respectively with warning lamp（27）Input and buzzer（28）Input it is electrical
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720789966.7U CN206848393U (en) | 2017-07-03 | 2017-07-03 | One kind has overvoltage, excessively stream and earth leakage protective safety-type electrical engineering laboratory desk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720789966.7U CN206848393U (en) | 2017-07-03 | 2017-07-03 | One kind has overvoltage, excessively stream and earth leakage protective safety-type electrical engineering laboratory desk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206848393U true CN206848393U (en) | 2018-01-05 |
Family
ID=60804086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720789966.7U Expired - Fee Related CN206848393U (en) | 2017-07-03 | 2017-07-03 | One kind has overvoltage, excessively stream and earth leakage protective safety-type electrical engineering laboratory desk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206848393U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110336244A (en) * | 2019-07-16 | 2019-10-15 | 武汉鑫诚欣科技有限公司 | A kind of voltage and current protector having overvoltage protection and protection system |
-
2017
- 2017-07-03 CN CN201720789966.7U patent/CN206848393U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110336244A (en) * | 2019-07-16 | 2019-10-15 | 武汉鑫诚欣科技有限公司 | A kind of voltage and current protector having overvoltage protection and protection system |
| CN110336244B (en) * | 2019-07-16 | 2022-05-27 | 武汉鑫诚欣科技有限公司 | Voltage and current protector with overvoltage protection function and protection system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105738743B (en) | A kind of alternating-current charging pile aging test device | |
| CN206848393U (en) | One kind has overvoltage, excessively stream and earth leakage protective safety-type electrical engineering laboratory desk | |
| CN203259647U (en) | Electricity larceny prevention testing apparatus | |
| CN103683188A (en) | Safety detection apparatus of solar energy inverter | |
| CN207967914U (en) | A kind of voltage protection of photovoltaic parallel in system | |
| CN205120851U (en) | Many strings of lithium ion battery protection shield testing arrangement | |
| CN109100616A (en) | A kind of detection method with the single-phase power-off of grounding transformer | |
| CN206657055U (en) | A kind of switch cubicle phase checking device | |
| CN205333770U (en) | Line detection device and system | |
| CN207719793U (en) | A kind of electric excavator Special grounding protection circuit | |
| CN107643494A (en) | A kind of memory supply network is for electric battery check device and method | |
| CN208014111U (en) | A kind of infrared warning guard fence | |
| CN204008819U (en) | A kind of contact high voltage electroscope with digital display function | |
| CN204091072U (en) | Early-warning for high pressure insulating glove | |
| CN202651632U (en) | Novel intelligent photovoltaic conjunction box | |
| CN208737864U (en) | Electric discharge protection circuit, display panel and display device | |
| CN204347224U (en) | Intelligent DC analogue ground tester | |
| WO2021012191A1 (en) | Insulation detection circuit, mainboard, and related device | |
| CN206908376U (en) | A kind of supply unit for the tripping operation that prevents from bypassing the immediate leadership | |
| JP2001298850A (en) | Ground detector of photovoltaic power generation panel | |
| CN105141020A (en) | Module integrated type single and dual-gun alternating current (AC) charging pile | |
| CN204214969U (en) | A kind of li-ion cell protection device checkout equipment | |
| CN204065303U (en) | Alarm protecting apparatus during three-phase supply one phase ground connection | |
| CN103208772A (en) | High-voltage transformer test protection device with multi-protection function | |
| CN206235697U (en) | A kind of fault detector for electric distribution network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180105 Termination date: 20180703 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |