CN206906516U - A kind of multichannel fuse state Intelligent detection circuit - Google Patents
A kind of multichannel fuse state Intelligent detection circuit Download PDFInfo
- Publication number
- CN206906516U CN206906516U CN201720460543.0U CN201720460543U CN206906516U CN 206906516 U CN206906516 U CN 206906516U CN 201720460543 U CN201720460543 U CN 201720460543U CN 206906516 U CN206906516 U CN 206906516U
- Authority
- CN
- China
- Prior art keywords
- photoelectrical coupler
- fuse
- microcontroller
- fuse state
- multichannel
- 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.)
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Abstract
The utility model provides a kind of multichannel fuse state Intelligent detection circuit, including multiple fuses, the fuse is connected in Firewire circuitry, also include multichannel fuse state Acquisition Circuit, microcontroller and the display unit being connected with the microcontroller, the fuse state Acquisition Circuit includes photoelectrical coupler, one end that first output end of the photoelectrical coupler passes through the resistance R1 connections fuse, second input of the photoelectrical coupler connects the other end of the fuse, second input of the photoelectrical coupler also passes through resistance R2 connection zero line inlet wires, second output end of the photoelectrical coupler connects the microcontroller, the first output end connection external dc power of the photoelectrical coupler.
Description
Technical field
Fuse state detection field is the utility model is related to, specifically, relate to a kind of multichannel fuse state intelligence
Circuit can be detected.
Background technology
With widely using for China's electric car, electric car charging equipment also arises at the historic moment；In order to avoid in charging process
There is excessively stream or short circuit phenomenon in load, and generally detection protection is carried out using fuse in electric car charging equipment, when occurring
After stream or overload phenomenon, fuse disconnects road power supply automatically, so as to play a part of quickly protecting electric car, has circuit letter
Single, cost is low, the advantages of reliable operation；But this method can not find that fuse fails in time, this just easily causes user and existed
Do not know that fuse has failed during use, can not be realized after inserting coins or swiping the card charge normal and can not reimbursement, brought not to user
Just.Need artificial unpack to investigate one by one when repairing simultaneously, waste time and energy, it is impossible to targetedly change and repair.
In order to solve the problem present on, people are seeking a kind of preferable technical solution always.
The content of the invention
The purpose of this utility model be in view of the shortcomings of the prior art, so as to provide a kind of design science, it is practical and
The low multichannel fuse state Intelligent detection circuit of cost.
To achieve these goals, technical scheme is used by the utility model：A kind of multichannel fuse state intelligence
Circuit is detected, including multiple fuses, the fuse are connected in Firewire circuitry, in addition to multichannel fuse state collection electricity
Road, microcontroller and the display unit being connected with the microcontroller, the fuse state Acquisition Circuit include photoelectricity coupling
Clutch, the first output end of the photoelectrical coupler pass through one end of the resistance R1 connections fuse, the photoelectrical coupler
The second input connect the other end of the fuse, the second input of the photoelectrical coupler is also connected by resistance R2
Zero line inlet wire, the first output end connection external dc power of the photoelectrical coupler, the second output of the photoelectrical coupler
End connects the microcontroller.
Based on above-mentioned, the fuse state Acquisition Circuit also includes light emitting diode, the negative electrode of the light emitting diode
It is connected with the first output end of the photoelectrical coupler, the second of the anode of the light emitting diode and the photoelectrical coupler is defeated
Enter end connection.
Based on above-mentioned, in addition to Surveillance center, the microcontroller pass through communication interface and Surveillance center's communication link
Connect.
The utility model has substantive distinguishing features and progress compared with the prior art, and specifically, the utility model passes through light
Electric coupler and light emitting diode realize the real-time detection of multichannel fuse, and pass through microcontroller intelligent reminding user's charging wire
Road failure, is user-friendly；Actively trouble point can also be sent to extraneous electronic management system by communication interface, realized simultaneously
The centralized management of trouble point, it is easy to safeguard trouble point in time.
Brief description of the drawings
Fig. 1 is circuit diagram of the present utility model.
Embodiment
Below by embodiment, the technical solution of the utility model is described in further detail.
As shown in figure 1, a kind of multichannel fuse state Intelligent detection circuit, including multiple fuse F1, the fuse
F1 is connected in Firewire circuitry, in addition to multichannel fuse state Acquisition Circuit, microcontroller U2 and with the microcontroller
The display unit of U2 connections, the fuse state Acquisition Circuit include the of photoelectrical coupler U1, the photoelectrical coupler U1
One output end is by resistance R1 connections fuse F1 one end, described in the second input connection of the photoelectrical coupler U1
The fuse F1 other end, the second input of the photoelectrical coupler U1 also pass through resistance R2 connection zero line inlet wires, the light
Electric coupler U1 the first output end connection external dc power, the second output end connection of the photoelectrical coupler U1 are described micro-
Controller U2.
The resistance R1 and resistance R2 is current-limiting resistance, luminous inside the photoelectrical coupler U1 for protecting
Diode is not breakdown, extends the service life of the photoelectrical coupler U1.
Further, in order to ensure that the voltage signal that the microcontroller U2 is received is stable, the photoelectrical coupler
Bleeder resistor R3 and charging capacitor C1, the bleeder resistor are additionally provided between U1 the second output end and the microcontroller U2
R3 and charging capacitor C1 composition mu balanced circuits, are exported to the microcontroller U2's for stablizing the photoelectrical coupler U1
Voltage signal.
When the fuse F1 normallies in the fuse state Acquisition Circuit, the fuse F1 both ends tool
There are identical current potential, the input no current circulation of the photoelectrical coupler U1, so that the second of the photoelectrical coupler U1 is defeated
It is that is, described photoelectrical coupler U1 the second output end output low level signal without output to go out end, the microcontroller U2 according to
The low level signal of the photoelectrical coupler U1 outputs judges the fuse F1 for normally state, and passes through the display
Unit is shown.
When the fuse F1 in the fuse state Acquisition Circuit disconnects, the fuse F1 both ends have not
Same current potential, now there is electric current to pass through in the photoelectrical coupler U1, it is defeated so as to the second output end of the photoelectrical coupler U1
Go out high level signal, the microcontroller U2 judges the fuse according to the photoelectrical coupler U1 high level signals exported
F1 is failure off-state, and is shown by the display unit.
In actual use, each fuse F1 is respectively provided with unique numbering, different fuse state Acquisition Circuits
Different pins in the microcontroller U2 are connected, the microcontroller U2 judges it according to per fuse state Acquisition Circuit all the way
Corresponding fuse F1 state, understand Multi-channel type electric car charging equipment in time in use so as to be advantageous to user
State, situation about can not be charged normal after coin or swiping card is avoided, the property of user is protected, reduces dispute.
Specifically, shape of the Multi-channel type electric car charging equipment per charging circuit all the way is more intuitively known for the ease of user
State, the fuse state Intelligent detection circuit also include light emitting diode D1, the negative electrode of the light emitting diode D1 with it is described
Photoelectrical coupler U1 the first output end connection, the second of the anode of the light emitting diode D1 and the photoelectrical coupler U1 are defeated
Enter end connection；When the fuse F1 normallies, no current is by so as to described luminous two in the light emitting diode D1
Pole pipe D1 does not light；When the fuse F1 disconnects, there is electric current in the light emitting diode D1 by so as to described luminous two
Pole pipe D1 lights.Pass through the luminous situation of the light emitting diode D1, you can intuitively judge Multi-channel type electric car charging equipment
Per the state of charging circuit all the way.
For the ease of safeguarding Multi-channel type electric car charging equipment in time, the fuse state Intelligent detection circuit also includes
Surveillance center, the microcontroller U2 are communicated to connect by communication interface and the Surveillance center, for having event by what is detected
The fuse numbering of barrier is uploaded to the Surveillance center, and the Surveillance center sends staff to be tieed up according to fuse numbering
Shield.
Finally it should be noted that:Above example is only illustrating the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand：Specific embodiment of the present utility model can still be modified or some technical characteristics are equally replaced
Change；Without departing from the spirit of technical solutions of the utility model, it all should cover in the claimed technical scheme of the utility model
Among scope.
Claims (3)
1. a kind of multichannel fuse state Intelligent detection circuit, including multiple fuses, the fuse are connected on Firewire circuitry
In, it is characterised in that：Also include multichannel fuse state Acquisition Circuit, microcontroller and be connected with the microcontroller aobvious
Show unit, the fuse state Acquisition Circuit includes photoelectrical coupler, and the first input end of the photoelectrical coupler passes through electricity
One end of the R1 connections fuse is hindered, the second input of the photoelectrical coupler connects the other end of the fuse, institute
The second input for stating photoelectrical coupler is also connected by resistance R2 connection zero line inlet wires, the first output end of the photoelectrical coupler
External dc power is connect, the second output end of the photoelectrical coupler connects the microcontroller.
2. multichannel fuse state Intelligent detection circuit according to claim 1, it is characterised in that：The fuse state
Acquisition Circuit also includes light emitting diode, and the first output end of the negative electrode of the light emitting diode and the photoelectrical coupler connects
Connect, the anode of the light emitting diode is connected with the second input of the photoelectrical coupler.
3. multichannel fuse state Intelligent detection circuit according to claim 1 or 2, it is characterised in that：Also include monitoring
Center, the microcontroller are communicated to connect by communication interface and the Surveillance center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720460543.0U CN206906516U (en) | 2017-04-28 | 2017-04-28 | A kind of multichannel fuse state Intelligent detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720460543.0U CN206906516U (en) | 2017-04-28 | 2017-04-28 | A kind of multichannel fuse state Intelligent detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206906516U true CN206906516U (en) | 2018-01-19 |
Family
ID=61291365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720460543.0U Expired - Fee Related CN206906516U (en) | 2017-04-28 | 2017-04-28 | A kind of multichannel fuse state Intelligent detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206906516U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108614186A (en) * | 2018-07-02 | 2018-10-02 | 优利德科技(中国)股份有限公司 | The device and method of automatic detection protective tube fusing |
| CN111487566A (en) * | 2019-01-29 | 2020-08-04 | 陕西重型汽车有限公司 | Novel fuse wire detection circuit and detection method |
| WO2021081755A1 (en) * | 2019-10-29 | 2021-05-06 | Suzhou Littelfuse Ovs Co., Ltd. | Systems, circuits, and methods for determining status of fuse or relay |
-
2017
- 2017-04-28 CN CN201720460543.0U patent/CN206906516U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108614186A (en) * | 2018-07-02 | 2018-10-02 | 优利德科技(中国)股份有限公司 | The device and method of automatic detection protective tube fusing |
| CN108614186B (en) * | 2018-07-02 | 2024-03-12 | 优利德科技(中国)股份有限公司 | Device and method for automatically detecting fusing of fuse tube |
| CN111487566A (en) * | 2019-01-29 | 2020-08-04 | 陕西重型汽车有限公司 | Novel fuse wire detection circuit and detection method |
| WO2021081755A1 (en) * | 2019-10-29 | 2021-05-06 | Suzhou Littelfuse Ovs Co., Ltd. | Systems, circuits, and methods for determining status of fuse or relay |
| EP4052056A4 (en) * | 2019-10-29 | 2022-11-09 | Suzhou Littelfuse OVS Co., Ltd. | Systems, circuits, and methods for determining status of fuse or relay |
| US11802892B2 (en) | 2019-10-29 | 2023-10-31 | Suzhou Littelfuse Ovs Co., Ltd. | Systems, circuits, and methods for determining status of fuse or relay |
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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 |
Granted publication date: 20180119 Termination date: 20210428 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |