CN207301168U - A kind of high-voltage charge display device with double protection functions - Google Patents
A kind of high-voltage charge display device with double protection functions Download PDFInfo
- Publication number
- CN207301168U CN207301168U CN201721433199.2U CN201721433199U CN207301168U CN 207301168 U CN207301168 U CN 207301168U CN 201721433199 U CN201721433199 U CN 201721433199U CN 207301168 U CN207301168 U CN 207301168U
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- Prior art keywords
- circuit
- voltage detection
- voltage
- display device
- programmable control
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Abstract
The utility model discloses a kind of high-voltage charge display device with double protection functions; including DC power supply circuit; and sensor, input protection circuit, the first AC/DC conversion circuits, the first signal conditioning circuit, the first programmable control circuit and the first indicating circuit coupled successively, and the 2nd AC/DC conversion circuits, secondary signal modulate circuit, the second programmable control circuit and the second indicating circuit coupled successively；Further include on-off circuit, first voltage detection circuit and second voltage detection circuit.The utility model has double safeguard function, so as to prevent because local fault causes high-voltage charge display device not use.
Description
Technical field
Technical field of electric equipment is the utility model is related to, especially, is related to a kind of high pressure with double protection functions
Electrification display.
Background technology
High voltage display device is the supporting loop networks switch being installed in distribution network system, cable branch box, case change
On, for indicating that the short circuit of respective cable electriferous state and respective cable section and one kind of singlephase earth fault monitor dress in real time
Put.Whether its detectable high voltage electric equipment is powered, and shows that equipment under test is in powered shape by modes such as luminous, sounding
State, while powered equipment under test locking is produced into danger to prevent user's mistakenly entering charged chamber.Circuit is powered or breaks down
When, staff can by the police instruction of indicator, rapidly definite circuit currently whether powered and fault section, and find out therefore
Barrier point.However, if high voltage display device breaks down, the effect of prompting is not just had.
Utility model content
In view of this, the utility model aim is to provide a kind of high-voltage charge display device with double protection functions, tool
There is double safeguard function.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：
A kind of high-voltage charge display device with double protection functions, including DC power supply circuit, and the biography coupled successively
Sensor, input protection circuit, the first AC/DC conversion circuits, the first signal conditioning circuit, the first programmable control circuit and first
Indicating circuit, and couple successively the 2nd AC/DC conversion circuits, secondary signal modulate circuit, the second programmable control circuit and
Second indicating circuit；Further include on-off circuit, first voltage detection circuit and second voltage detection circuit；2nd AC/DC
The input terminal of conversion circuit is electrically connected to the output terminal of input protection circuit by the first controllable switch；The DC power supply circuit
AC220V power supplys are accessed, and are translated into DC voltage, the DC power supply circuit has 2 road output terminals, wherein defeated all the way
Outlet is directly to the first AC/DC conversion circuits, the first signal conditioning circuit, the first programmable control circuit and the first instruction electricity
Road, first voltage detection circuit and second voltage detection circuit and on-off circuit power supply, another way are in series with second and controllable open
Close, for the 2nd AC/DC conversion circuits, secondary signal modulate circuit, the second programmable control circuit and the second indicating circuit
Power supply；The input terminal of the first voltage detection circuit is electrically connected to the output terminal of input protection circuit, is protected for detecting input
Whether protection circuit has electric signal output and exports corresponding first voltage detection signal accordingly；The second voltage detection circuit
Input terminal is electrically connected between the first programmable control circuit and the first indicating circuit, for detecting the circuit of the first indicating circuit
Whether it is powered, and exports corresponding second voltage detection signal accordingly；The on-off circuit is electrically connected to first voltage detection electricity
Road and second voltage detection circuit, for being detected according to first voltage detection signal, first voltage, signal control first is controllable to open
Close, the second controllable switch on/off.
Preferably, the input protection circuit is lightning protection circuit.
Preferably, first controllable switch, the second controllable switch use relay.
Preferably, first programmable control circuit, the second programmable control circuit use microcontroller.
Preferably, the sensor uses current transformer.
The utility model has the technical effect that following aspect：By setting another way to prompt path, so as to
In the case of common prompting path fault, another way prompting path is enabled, so as to ensure high pressure belt to a certain extent
Electric display normal work.
Brief description of the drawings
Fig. 1 is the circuit diagram of embodiment middle-high pressure electrification display；
Fig. 2 is the circuit diagram of on-off circuit in embodiment.
Reference numeral：1st, sensor；2nd, input protection circuit；3rd, the first AC/DC conversion circuits；4th, the first signal condition electricity
Road；5th, the first programmable control circuit；6th, the first indicating circuit；7th, first voltage detection circuit；8th, second voltage detection circuit；
9th, on-off circuit；10th, the 2nd AC/DC conversion circuits；11st, secondary signal modulate circuit；12nd, the second programmable control circuit；13、
Second indicating circuit.
Embodiment
Below in conjunction with attached drawing, specific embodiment of the present utility model is described in further detail, so that the utility model skill
Art scheme is more readily understood and grasps.
With reference to Fig. 1, a kind of high-voltage charge display device with double protection functions, including direct current are present embodiments provided
Source circuit, and sensor 1, input protection circuit 2, the first AC/DC conversion circuits 3, the first signal conditioning circuit coupled successively
4th, the first programmable control circuit 5 and the first indicating circuit 6, and couple successively the 2nd AC/DC conversion circuits 10, secondary signal
Modulate circuit 11, the second programmable control circuit 12 and the second indicating circuit 13；Further include on-off circuit 9, first voltage detection
Circuit 7 and second voltage detection circuit 8.Wherein, input protection circuit 2 is lightning protection circuit, and sensor 1 uses current transformer,
First programmable control circuit 5, the second programmable control circuit 12 use microcontroller.First indicating circuit 6, the second indicating circuit
13 are respectively provided with buzzer and LED light composition, to realize that sound-light double is prompted.
DC power supply circuit accesses AC220V power supplys, and is translated into DC voltage, and DC power supply circuit is defeated with 2 roads
Outlet, wherein output terminal is directly to the first AC/DC conversion circuits 3, the first signal conditioning circuit 4, the first PLC technology all the way
5 and first indicating circuit 6 of circuit, first voltage detection circuit 7 and second voltage detection circuit 8 and on-off circuit 9 are powered, separately
The second controllable switch is in series with all the way, for that can be compiled to the 2nd AC/DC conversion circuits 10, secondary signal modulate circuit 11, second
12 and second indicating circuit 13 of process control circuit is powered.
The input terminal of 2nd AC/DC conversion circuits 10 is electrically connected to the defeated of input protection circuit 2 by the first controllable switch
Outlet.
The input terminal of first voltage detection circuit 7 is electrically connected to the output terminal of input protection circuit 2, is protected for detecting input
Whether protection circuit 2 has electric signal output and exports corresponding first voltage detection signal Vs1 accordingly；Second voltage detection circuit 8
Input terminal be electrically connected between the first programmable control circuit 5 and the first indicating circuit 6, for detect the first indicating circuit 6
Circuit whether be powered, and export corresponding second voltage detection signal Vs2 accordingly.
With reference to Fig. 2, on-off circuit 9 includes AND gate circuit N1, not circuit N2, first resistor R1, the first NPN triode
Q1；First controllable switch S1, the second controllable switch S2 use relay, are respectively the first relay K1, the second relay K2；It is non-
The input terminal of gate circuit N2 is electrically connected to second voltage detection circuit 8, two input terminals of AND gate circuit N1 be electrically connected in
First voltage detection circuit 7 and not circuit N2；The base stage of first NPN triode is electrically connected to and door electricity by first resistor R1
The output terminal of road N2, emitter ground connection, collector are electrically connected to after connecting with the coil of the first relay K1, the first relay K2
VCC voltages（There is provided by DC power supply circuit）.
Therefore, the operation principle of the present embodiment is：
When first voltage detection signal Vs1 is high level, and second voltage detection signal Vs2 is low level, then it represents that by
First AC/DC conversion circuits 3, the first signal conditioning circuit 4, the first programmable control circuit 5 and the first indicating circuit 6, first
The first instruction path fault that voltage detecting circuit 7 is formed, therefore, the electric signal of AND gate circuit N1 output high level makes first
NPN triode Q1 turns on, and then the first relay K1, the second relay K2 are powered and turn on so that by the 2nd AC/DC conversion circuits
10th, the second instruction path that secondary signal modulate circuit 11, the second programmable control circuit 12 and the second indicating circuit 13 are formed
Work.
Certainly, it is the representative instance of the utility model above, in addition, the utility model can also have other a variety of
Embodiment, all technical solutions formed using equivalent substitution or equivalent transformation, all falls within the requires of the utility model protection
Within the scope of.
Claims (5)
1. a kind of high-voltage charge display device with double protection functions, it is characterized in that, including DC power supply circuit, and coupling successively
The sensor (1) that connects, input protection circuit (2), the first AC/DC conversion circuits (3), the first signal conditioning circuit (4), first can
Programming Control circuit (5) and the first indicating circuit (6), and the 2nd AC/DC conversion circuits (10), the secondary signal tune coupled successively
Manage circuit (11), the second programmable control circuit (12) and the second indicating circuit (13)；Further include on-off circuit (9), the first electricity
Press detection circuit (7) and second voltage detection circuit (8)；The input terminal of the 2nd AC/DC conversion circuits (10) passes through first
Controllable switch is electrically connected to the output terminal of input protection circuit (2)；The DC power supply circuit accesses AC220V power supplys, and by its
DC voltage is converted into, the DC power supply circuit has 2 road output terminals, wherein output terminal turns directly to the first AC/DC all the way
Change circuit (3), the first signal conditioning circuit (4), the first programmable control circuit (5) and the first indicating circuit (6), first voltage
Detection circuit (7) and second voltage detection circuit (8) and on-off circuit (9) power supply, another way are in series with the second controllable switch,
For to the 2nd AC/DC conversion circuits (10), secondary signal modulate circuit (11), the second programmable control circuit (12) and second
Indicating circuit (13) is powered；The input terminal of the first voltage detection circuit (7) is electrically connected to the output of input protection circuit (2)
Whether end, have electric signal output and export corresponding first voltage detection signal accordingly for detecting input protection circuit (2)；Institute
State second voltage detection circuit (8) input terminal be electrically connected to the first programmable control circuit (5) and the first indicating circuit (6) it
Between, whether the circuit for detecting the first indicating circuit (6) is powered, and exports corresponding second voltage detection signal accordingly；Institute
State on-off circuit (9) and be electrically connected to first voltage detection circuit (7) and second voltage detection circuit (8), for according to the first electricity
Pressure detection signal, first voltage detection signal control the first controllable switch, the second controllable switch on/off.
2. a kind of high-voltage charge display device with double protection functions as claimed in claim 1, it is characterized in that, the input
It is lightning protection circuit to protect circuit (2).
3. a kind of high-voltage charge display device with double protection functions as claimed in claim 1, it is characterized in that, described first
Controllable switch, the second controllable switch use relay.
4. a kind of high-voltage charge display device with double protection functions as claimed in claim 1, it is characterized in that, described first
Programmable control circuit (5), the second programmable control circuit (12) use microcontroller.
5. a kind of high-voltage charge display device with double protection functions as claimed in claim 1, it is characterized in that, the sensing
Device (1) uses current transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721433199.2U CN207301168U (en) | 2017-11-01 | 2017-11-01 | A kind of high-voltage charge display device with double protection functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721433199.2U CN207301168U (en) | 2017-11-01 | 2017-11-01 | A kind of high-voltage charge display device with double protection functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207301168U true CN207301168U (en) | 2018-05-01 |
Family
ID=62274255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721433199.2U Expired - Fee Related CN207301168U (en) | 2017-11-01 | 2017-11-01 | A kind of high-voltage charge display device with double protection functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207301168U (en) |
-
2017
- 2017-11-01 CN CN201721433199.2U patent/CN207301168U/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 |
Granted publication date: 20180501 Termination date: 20191101 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |