CN207603189U - A kind of intelligent comprehensive protection device - Google Patents
A kind of intelligent comprehensive protection device Download PDFInfo
- Publication number
- CN207603189U CN207603189U CN201721509610.XU CN201721509610U CN207603189U CN 207603189 U CN207603189 U CN 207603189U CN 201721509610 U CN201721509610 U CN 201721509610U CN 207603189 U CN207603189 U CN 207603189U
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- circuit
- protection device
- intelligent comprehensive
- cpu
- comprehensive protection
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Abstract
The utility model is related to a kind of intelligent comprehensive protection devices; including CPU, voltage sampling signal circuit, current sampling signal circuit, residual current sampled signal circuit, power supply, adjust circuit, display circuit, executing agency; the voltage sampling signal circuit, current sampling signal circuit, residual current sampled signal circuit, power supply, the output terminal that adjusts circuit are connected respectively to the input terminal of CPU, the output terminal of the CPU be connected respectively to display circuit, executing agency input terminal.The function of overvoltage-undervoltage protector, overcurrent protector, residual current operated protective device is brought together by the utility model; have overvoltage/undervoltage, overcurrent, the detection function of electric leakage; circuit level is high; protector quantity and the connection relation in low-voltage protection circuit are simplified simultaneously; it avoids the zero curve in traditional circuit after overvoltage-undervoltage protector and the security risk of breakpoint occurs, reduce the cost of circuit protection.
Description
Technical field
The utility model is related to low voltage circuit protection field more particularly to a kind of intelligent comprehensive protection devices.
Background technology
As shown in Figure 1, traditional low-voltage protection circuit inlet wire by battery main switch, overvoltage-undervoltage protector, overcurrent protector,
Residual current operated protective device sequence is formed, and breakpoint, which occurs, in zero curve N can cause phenomenon off zero, when zero curve breakpoint is in overvoltage-undervoltage protector
During zero curve N before (a points), overvoltage-undervoltage protector will disconnect, and play a protective role, when zero curve breakpoint is in overvoltage-undervoltage protector
During zero curve N later (b points, c points), overvoltage-undervoltage protector can't detect trouble point, and overcurrent protector and residual current protecting
Device cannot all detect failure off zero, and load is made to be in the voltage that firewire when powering off also has 220V, still remains the hidden danger of electric shock, no
Only in this way, when battery main switch, overcurrent protector, residual current operated protective device all have disjunction arc extinguishing ability, quenching moment is more.It is comprehensive
Upper described, by the setting of traditional low-voltage protection circuit, not only protector multi-connection is complicated, but also cannot artificially control zero for circuit
The position of line breakpoint, there are security risks when off zero.
Invention content
It in view of this, can the purpose of this utility model is to provide a kind of connection of simplified low-voltage protection circuit and safety
The intelligent comprehensive protection device leaned on.
In order to achieve the goal above, the utility model uses such a intelligent comprehensive protection device, including CPU, voltage
Sampled signal circuit, residual current sampled signal circuit, power supply, adjusts circuit, display circuit, holds current sampling signal circuit
Row mechanism, the voltage sampling signal circuit, residual current sampled signal circuit, power supply, adjust electricity at current sampling signal circuit
The output terminal on road is connected respectively to the input terminal of CPU, and the output terminal of the CPU is connected respectively to display circuit, executing agency
Input terminal.
Above-mentioned intelligent comprehensive protection device includes voltage, electric current, residual current sample circuit, has overvoltage/undervoltage, overcurrent, leakage
The detection function of electricity, while protector quantity and connection relation in low-voltage protection circuit are simplified, it is protected instead of by overvoltage/undervoltage
Protect the protection circuit of tradition complexity that device, overcurrent protector, residual current operated protective device are formed.
This practicality is further arranged to display circuit and includes LED drive control chips U2, charactron D11, the LED drivings
The data input and output pin of control chip U2, clock pins, enabled controlling switch are connected respectively to the data input and output of CPU
Pin, clock pins, enabled controlling switch, segment encode pin, the position code pin of LED drive control chips U2 are connected to charactron
On the corresponding pins of D11.
This practicality is further arranged to adjusting circuit and includes button S1, button S2, the button S1, button S2 parallel connection, presses
The segment encode pin of one end connection LED drive control chips U2 of key S1, the other end connection LED drive control chips U2 of button S1
Key-press input pin.
Above-mentioned adjusting circuit and display circuit with LED drive control chips all by connecting, the electricity that CPU processing is obtained
Pressure, current data shows and the input signal of button in adjusting circuit is transmitted to CPU, and LED drive control chips are big
The big occupancy reduced to the pin of CPU, and circuit level is high.
This practicality is further arranged to intelligent comprehensive protection device and includes housing and cut-out switch on housing, adjusts
Button, display screen, the display screen are fixed on surface of shell, and cut-out switch and regulating key are arranged below display screen.
This practicality, which is further arranged to cut-out switch, can cut off the circuit loop of intelligent comprehensive protection device.
Above-mentioned cut-out switch can be in maintenance, and user hand dynamic circuit breaker opens the circuit loop of intelligent comprehensive protection device, ensures
The safety of service personnel, user can also can be with the size of electric current, display screen real-time display circuits to set by regulating key
In voltage, current data, achieve the purpose that human-computer interaction.
This practicality is further arranged to the model STM8S003F3 of CPU.
This practicality is further arranged to the model TM1618 of LED drive control chips U2.
CPU and LED the drive control chip performance of above-mentioned model is excellent, reliable in quality, and circuit level is high.
Description of the drawings
Fig. 1 is conventional low circuit protection schematic diagram.
Fig. 2 is the utility model embodiment functional block diagram.
Fig. 3 is the utility model embodiment low voltage circuit protection schematic diagram.
Fig. 4 is the utility model embodiment LED drive control chip circuit schematic diagrams.
Fig. 5 is the utility model embodiment charactron circuit diagram.
Fig. 6 is the utility model embodiment key circuit schematic diagram.
Fig. 7 is the utility model embodiment cpu circuit schematic diagram.
Fig. 8 is the utility model embodiment stereogram.
Specific embodiment
As shown in figs. 1 and 3, traditional low-voltage protection circuit inlet wire is by battery main switch, overvoltage-undervoltage protector, overcurrent protection
Device, residual current operated protective device sequence are formed, and breakpoint, which occurs, in zero curve N can cause phenomenon off zero, are protected when zero curve breakpoint is in overvoltage/undervoltage
Protect device before zero curve N when (a points), overvoltage-undervoltage protector will disconnect, and play a protective role, when zero curve breakpoint is in overvoltage/undervoltage
During zero curve N after protector (b points, c points), overvoltage-undervoltage protector can't detect trouble point, and overcurrent protector and residue electricity
Stream protector cannot all detect failure off zero, and load is made to be in the voltage that firewire when powering off also has 220V, still remains electric shock
Hidden danger, moreover, the ability of arc extinguishing, arc extinguishing when battery main switch, overcurrent protector, residual current operated protective device all have disjunction
Point is more.And the utility model is a kind of intelligent comprehensive protection device, and overvoltage-undervoltage protector, overcurrent protector, residual current are protected
The function of shield device is brought together, and the firewire of low-voltage protection circuit connects the end of incoming cables of battery main switch with the inlet wire of zero curve, electricity
The leading-out terminal of source master switch is connected to the end of incoming cables of intelligent comprehensive protection device, and the leading-out terminal connection of intelligent comprehensive protection device is negative
It carrying, when zero curve N breakpoints are appeared in before intelligent comprehensive protection device (d points), intelligent comprehensive protection device can be detected and be disconnected,
Protect circuit.Compared with traditional low-voltage protection circuit, intelligent comprehensive protection device has overvoltage/undervoltage, overcurrent, the detection leaked electricity
Function, while protector quantity and connection relation in low-voltage protection circuit are simplified, it avoids in traditional circuit in overvoltage/undervoltage
There is the security risk of breakpoint in zero curve after protector.
As shown in Fig. 2, intelligent comprehensive protection device include CPU, voltage sampling signal circuit, current sampling signal circuit,
Residual current sampled signal circuit, adjusts circuit, display circuit, executing agency, the voltage sampling signal circuit, electricity at power supply
Stream sampled signal circuit, residual current sampled signal circuit, power supply, the output terminal that adjusts circuit are connected respectively to the input of CPU
End, the output terminal of the CPU be connected respectively to display circuit, executing agency input terminal.
As shown in figs. 4-7, display circuit includes LED drive control chips U2, charactron D11, the LED drive controls core
The data input and output pin of piece U2, clock pins, enabled controlling switch be connected respectively to CPU data input and output pin,
Clock pins, enabled controlling switch, segment encode pin, the position code pin of LED drive control chips U2 are connected to charactron D11 correspondences
Pin on.It adjusts circuit and includes button S1, button S2, the button S1, button S2 parallel connection, one end connection LED of button S1
The segment encode pin of drive control chip U2, the key-press input pin of the other end connection LED drive control chips U2 of button S1.
As shown in figs. 3 and 8, intelligent comprehensive protection device includes housing 4 and cut-out switch 1 on housing 4, adjusts and press
Key 2, display screen 3, the display screen 3 are fixed on 4 surface of housing, and cut-out switch 1 and regulating key 2 are arranged below display screen,
Cut-out switch 1 can cut off the circuit loop of intelligent comprehensive protection device.
According to above example, when over-pressed, under-voltage, overcurrent, leak current fault occur in circuit, Intelligent integrated protector is all
Fault-signal and cutoff circuit can be received, to realize circuit protection, while Intelligent integrated protector be provided with cut-out switch,
Regulating key, display screen can manually switch off Intelligent integrated protector in maintenance by cut-out switch, and user can also pass through
Regulating key open up put overvoltage/undervoltage, overcurrent protection domain, display screen then can intuitively reflect the data of voltage, electric current,
Realize human-computer interaction.
Claims (7)
1. a kind of intelligent comprehensive protection device, it is characterised in that：Including CPU, voltage sampling signal circuit, current sampling signal electricity
Road, residual current sampled signal circuit, power supply, adjusting circuit, display circuit, executing agency, the voltage sampling signal circuit,
Current sampling signal circuit, residual current sampled signal circuit, power supply, adjust circuit output terminal be connected respectively to the defeated of CPU
Enter end, the output terminal of the CPU be connected respectively to display circuit, executing agency input terminal.
2. intelligent comprehensive protection device according to claim 1, it is characterised in that：The display circuit drives including LED
Control chip U2, the data input and output pin of charactron D11, the LED drive controls chip U2, clock pins, enabled control
Pin processed is connected respectively to the data input and output pin, clock pins, enabled controlling switch of CPU, LED drive control chips U2
Segment encode pin, position code pin be connected on the corresponding pins of charactron D11.
3. intelligent comprehensive protection device according to claim 2, it is characterised in that：It is described adjusting circuit include button S1,
Button S2, the button S1, button S2 are in parallel, the segment encode pin of one end connection LED drive control chips U2 of button S1, button
The key-press input pin of the other end connection LED drive control chips U2 of S1.
4. according to the intelligent comprehensive protection device described in claims 1 or 2 or 3, it is characterised in that：The intelligent comprehensive protection dress
Cut-out switch, regulating key, the display screen including housing and on housing are put, the display screen is fixed on surface of shell, cuts
It disconnects closing and be arranged below display screen with regulating key.
5. intelligent comprehensive protection device according to claim 4, it is characterised in that：It is comprehensive that the cut-out switch can cut off intelligence
Close the circuit loop of protective device.
6. according to the intelligent comprehensive protection device described in claims 1 or 2 or 3, it is characterised in that：The model of the CPU
STM8S003F3。
7. the intelligent comprehensive protection device according to Claims 2 or 3, it is characterised in that：The LED drive controls chip U2
Model TM1618.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017213955787 | 2017-10-26 | ||
| CN201721395578 | 2017-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207603189U true CN207603189U (en) | 2018-07-10 |
Family
ID=62758439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721509610.XU Expired - Fee Related CN207603189U (en) | 2017-10-26 | 2017-11-14 | A kind of intelligent comprehensive protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207603189U (en) |
-
2017
- 2017-11-14 CN CN201721509610.XU patent/CN207603189U/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: 20180710 Termination date: 20211114 |