CN206742838U - A kind of mesolow user overloads caution system - Google Patents
A kind of mesolow user overloads caution system Download PDFInfo
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- CN206742838U CN206742838U CN201720363080.6U CN201720363080U CN206742838U CN 206742838 U CN206742838 U CN 206742838U CN 201720363080 U CN201720363080 U CN 201720363080U CN 206742838 U CN206742838 U CN 206742838U
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Abstract
The utility model discloses a kind of mesolow user to overload caution system, and its drip irrigation device includes coupling the broken circuit detection circuit of corresponding detection signals whether is tripped and exported for detection master on off with master on off；The fusing detection circuit that corresponding detection signals whether are fused and exported for detection fuse is coupled with fuse both ends；It is coupled to broken circuit detection circuit to detect on circuit with fusing, to detect the counting unit that the detection signal of circuit output counts according to broken circuit detection circuit or fusing；It is coupled in counting unit, the digital display end on display counting unit.Above technical scheme solves the problems, such as that artificial counting can be because forget or other reasonses cause counting error.
Description
Technical field
Overload caution system is the utility model is related to, more particularly to a kind of mesolow user overloads caution system.
Background technology
In densely populated electricity consumption area, mesolow user is more, the load weight of circuit.Line load is excessive to cause circuit
On electric current become big, easily produce fire, cause serious property loss.The situation that fire always occurs is summarized, is occurred every time
Before fire, the fuse or master on off of power supply administration all can fusing, automatic trip 4-5 times within corresponding a period of time.In the past all
It is that staff is melted to record the number of blown fuse or master on off tripping operation in corresponding a period of time, such as according to a period of time
Disconnected or tripping frequency is high, illustrates that electricity consumption area has been likely to occur the problem of larger, so as to take corresponding stringent effort, by supervising in real time
Control reaches the incidence for reducing manpower and materials loss while also reducing fire.
But artificial counting can cause serious consequence to occur because forgetting or other reasonses cause counting error.
Utility model content
The purpose of this utility model is to provide a kind of mesolow user and overloads caution system, solve artificial counting can because
Forget or the problem of other reasonses cause counting error.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of mesolow user mistake
Caution system is carried, including the open circuit inspection that corresponding detection signals whether are tripped and exported for detection master on off is coupled with master on off
Slowdown monitoring circuit；The fusing detection electricity that corresponding detection signals whether are fused and exported for detection fuse is coupled with fuse both ends
Road；Broken circuit detection circuit and fusing detection circuit are coupled to, to detect the inspection of circuit output according to broken circuit detection circuit or fusing
Survey the counting unit of signal-count；Counting unit is coupled to, the digital display end on display counting unit.
By using above-mentioned technical proposal：Broken circuit detection circuit has the function that to detect whether master on off trips；When total electricity
After lock tripping operation, testing for continuity circuit exports corresponding detection signal, counting unit accumulated counts to counting unit；
Fusing detection circuit has the function that to detect whether fuse fuses；After fusible link fuses, fusing checks circuit
Corresponding detection signal, counting unit accumulated counts are exported to counting unit；
Counting unit has accumulation calculating interior blown fuse number and the work of master on off tripping times summation for a period of time
With, while also there is the work for judging whether accumulated counts according to the detection information of broken circuit detection circuit and fusing detection circuit output
With；
Display end, which has, shows technical unit aggregate-value, plays a part of reminding staff.
Preferably, the divider resistance that the broken circuit detection circuit includes rectifier bridge, connected with rectifier bridge, the one of divider resistance
End is connected with master on off, and the output end of rectifier bridge is connected with the comparator for whether having electric current to export for detecting rectifier bridge, and works as
Output HIGH voltage during rectifier bridge Non voltage output, the output end of comparator are connected with counting unit.
By using above-mentioned technical proposal：Divider resistance has the function that partial pressure, with the voltage on limitation rectifier bridge
Effect；Rectifier bridge has the function that AC conversion into direct current, and is used as detection signal by the DC voltage of output
Effect；Comparator has the function that the working condition according to rectifier bridge output electric current measure master on off, and exports trigger signal and make
The function of counting unit counts.
Preferably, the broken circuit detection circuit includes warning circuit, and warning circuit includes being used to receive comparator output letter
Number and triggering and conducting trigger element, and power supply, alarm element, power supply, trigger element, alarm element be sequentially connected in series, and alarms
Element is grounded.
By using above-mentioned technical proposal：Trigger element plays a part of switch, and with according to comparator output
Trigger signal touches the effect for turning on warning circuit, alarm element is sent alarm signal and makes warning circuit output detection letter
Number.
Preferably, the fusing detection circuit includes current-limiting resistance, current detection circuit, current-limiting resistance and current detecting electricity
Road is connected in series, and the both ends of fuse are connected with current-limiting resistance, current detection circuit respectively.
By using above-mentioned technical proposal：The resistance of current-limiting resistance is much larger than the resistance value of fuse, and current-limiting resistance is being protected
When dangerous silk is in "on" position, current-limiting resistance is off；When fuse disconnects, there is less electric current on current-limiting resistance
Pass through；Current detection circuit has the function that to detect and whether has electric current on current-limiting resistance and export corresponding detection signal.
Preferably, the current detection circuit includes power supply and power sources in series and forms the photo-coupler of closed-loop path；
Photo-coupler has 1 port, 2 ports, 3 ports, 4 ports, 1 port of photo-coupler, 2 ports electric with current limliting respectively
Resistance, fuse connection, 3 ports of photo-coupler are connected with power supply, and 4 ports are connected with counting unit.
By using above-mentioned technical proposal：Photo-coupler is connected in parallel with fuse, when fuse is intact, current-limiting resistance
Photo-coupler is set to be in the state of short circuit, the receiving terminal of photo-coupler is in the state disconnected；When blown fuse, current limliting electricity
Have in resistance has transmitting terminal, a receiving terminal by, electric current photo-coupler on a small quantity, the LEDs ON on transmitting terminal, receiving terminal
On triode ON so that photo-coupler 4 ends output detection signal effect.
Preferably, the current detection circuit includes warning part, warns 4 ports of part and photo-coupler to connect.
By using above-mentioned technical proposal：Warn part to use warning lamp, loudspeaker etc., play and warned in time after blown fuse
Show the effect of staff.
Preferably, the counting unit includes being used for cumulative calculation fusing number and the counter of tripping times.
By using above-mentioned technical proposal：Counter is with the cumulative calculation blown fuse number within a period of time and always
The effect of the summation of electric brake tripping times.
Preferably, the counting unit include be connected with current detection circuit, warning circuit and according to current detection circuit,
The control terminal that the output valve flip-flop number of warning circuit counts.
By using above-mentioned technical proposal：Control terminal has the function that flip-flop number counting, either warning circuit also
It is the detection signal of current detection circuit output, control terminal flip-flop number can counts.
Preferably, the display end includes the decoder electrically connected with counter, in addition to the number being connected with decoder
Display.
By using above-mentioned technical proposal：Encoder has the binary code that will be deposited in counter with nixie display
The effect shown.
In summary, the utility model has the advantages that：
1. have the function that to add up blown fuse number and master on off tripping times automatically, meanwhile, jumped each time
When lock or fusing, the effect of staff is reminded in time.Solving artificial counting can be because forgets or other reasonses cause to count
The problem of error.
Brief description of the drawings
Fig. 1 is the module map of this implementation；
Fig. 2 is the circuit diagram of the present embodiment.
In figure：1st, broken circuit detection circuit；2nd, fusing detection circuit；3rd, counting unit；4th, display end；5th, warning circuit；6、
Current detection circuit；7th, photo-coupler.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
A kind of mesolow user overloads caution system, as shown in Figure 1, 2, including for being examined with the open circuit that master on off K is coupled
Slowdown monitoring circuit 1, broken circuit detection circuit 1 have the function that to detect whether master on off K trips and export corresponding detection signals；And it is used for
Whether the fusing detection circuit 2 being connected with fuse S both ends, fusing detection circuit 2 there is detection fuse S to fuse and export phase
Answer the effect of detection signal；Also include the counting list being connected respectively with the output end of broken circuit detection circuit 1, fusing detection circuit 2
Member 3, it is connected with display end 4 in counting unit 3.Counting unit 3 with broken circuit detection circuit 1, fusing by detecting the defeated of circuit 2
Go out end connection, there is the detection signal exported according to broken circuit detection circuit 1 or fusing detection circuit 2 and count, display
End 4 has the function that to show the stored count value of current count unit 3.
As shown in Fig. 2 broken circuit detection circuit 1 includes rectifier bridge Dx, the divider resistance R1 being connected in series with rectifier bridge Dx, point
Piezoresistance R1 has the function that partial pressure.Broken circuit detection circuit 1 also includes the comparator B1 being connected with rectifier bridge Dx.On rectifier bridge Dx
Parallel connection one wave filter C1, wave filter C1 have filter action, and make the relatively stable voltage of rectifier bridge Dx outputs.The one of wave filter C1
End is connected with comparator B1 positive input, and a burning voltage U is connected on comparator B1 negative input.
As shown in Fig. 2 broken circuit detection circuit 1 also includes the warning circuit 5 with comparator B1 couplings.Warning circuit 5 includes
Trigger element, trigger element can select triode, metal-oxide-semiconductor, preferably p-type triode Q in the present embodiment.Comparator B1 output
End is connected with p-type triode Q base stage.Warning circuit 5 also includes switch k1 and the p-type being connected with p-type triode Q colelctor electrodes
The warning part and power Vcc of triode Q emitter stages connection, p-type triode Q, switch k1, warning part are series at power Vcc
On.The preferred loudspeaker M1 of the present embodiment warning part.
As shown in Fig. 2 fusing detection circuit 2 includes current-limiting resistance R2, current detection circuit 6, current-limiting resistance R2 and electric current
Detection circuit 6 is connected in series, and fuse S both ends are connected with current-limiting resistance R2, current detection circuit 6 respectively.Current detecting electricity
The bag power supply U1 of road 6, warning part and photo-coupler 7, warn in the present embodiment part preferred loudspeaker M2, power supply U1, photo-coupler 7 with
Loudspeaker M2 is connected in series to form series loop.Photo-coupler 7 has 1 port, 2 ports, 3 ports, 4 ports, the 1 of photo-coupler 7
Port, 2 ports are connected with current-limiting resistance R2, fuse S respectively, and 3 ports of photo-coupler 7 are connected with power supply U1,4 ports and meter
Counting unit 3 connects.When fuse S normal works, photo-coupler 7 is in short-circuit condition；When fuse S fusible links, optocoupler
The LEDs ON of clutch 7, the photosensitive triode ON in receiving terminal.
As shown in Fig. 2 counting unit 3 includes counter IC1, the counter of the preferred CD451B models of counter.Count single
Member 3 includes the control terminal that connection is connected with current detection circuit 6, warning circuit 5, and counter IC1 electrically connects with control terminal, this reality
It is logic sum gate H to apply control terminal in example, and logic sum gate H input is with switching k2 and photo-coupler 7 in current detection circuit 6
Node between 4 ports connects, in another inputs of logic sum gate H and warning circuit 5 between p-type triode Q and loudspeaker M1
Node connects.
As shown in Fig. 2 display end 4 includes the decoder IC2 electrically connected with counter, in addition to the number being connected with decoder
Code display.The decoder of the preferred CD4543 models of decoder IC2 in the present embodiment.
The course of work：
1. after fusing detection circuit 2 detects fuse S fusing, the photo-coupler 7 in triggering end turns on, light-emitting diodes
Guan Guang goes out light, and the receiving terminal of photo-coupler 7 for making to be series on current detection circuit 6 turns on, and loudspeaker M2 powers alarm；
2. at the same time current detection circuit 6 and the voltage on logic sum gate H tie points are high voltage, make logic sum gate H
Output high level voltage signal, touch count counting；On counter binary code by after decoder for decoding by digital-scroll technique
Device is shown；
3. after output circuit detects master on off K tripping operations, the rectifier bridge Dx output low-voltages on output circuit, comparator
B1 output HIGH voltages, and trigger warning circuit 5 and turn on, loudspeaker M1 powers alarm；
4. at the same time the voltage on warning circuit 5 and logic sum gate H tie points is high voltage, make that logic sum gate H's is defeated
Go out high level voltage signal, touching makes counting accumulated counts；Binary code is by aobvious by number again after decoder for decoding on counter
Show that device is shown.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
Claims (8)
1. a kind of mesolow user overloads caution system, it is characterised in that：Including with master on off（K）Coupling is total electric for detecting
Lock（K）Whether trip and export the broken circuit detection circuit (1) of corresponding detection signals；
With fuse（S）Both ends coupling is for detection fuse（S）The fusing for whether fusing and exporting corresponding detection signals is examined
Slowdown monitoring circuit (2)；
Broken circuit detection circuit (1) and fusing detection circuit (2) are coupled to, with according to broken circuit detection circuit (1) or fusing detection electricity
The counting unit (3) that the detection signal of road (2) output counts；
Counting unit (3) is coupled to, the digital display end (4) on display counting unit (3).
2. a kind of mesolow user according to claim 1 overloads caution system, it is characterised in that：The open circuit detection electricity
Road (1) includes rectifier bridge（Dx）With rectifier bridge（Dx）The divider resistance of series connection, one end of divider resistance is connected with master on off, whole
Flow bridge（Dx）Output end be connected with for detecting rectifier bridge（Dx）Whether comparator that electric current export is had（B1）, and work as rectifier bridge
（Dx）Output HIGH voltage during Non voltage output, comparator（B1）Output end be connected with counting unit (3).
3. a kind of mesolow user according to claim 2 overloads caution system, it is characterised in that：The open circuit detection electricity
Road (1) includes warning circuit (5), and warning circuit (5) includes being used to receive comparator（B1）Output signal and triggering and conducting are touched
Send out element, and power supply（Vcc）, alarm element, power supply（Vcc）, trigger element, alarm element be sequentially connected in series, alarm element one
End ground connection.
4. a kind of mesolow user according to claim 3 overloads caution system, it is characterised in that：The fusing detection electricity
Road (2) includes current-limiting resistance, current detection circuit (6), and current-limiting resistance is connected in series with current detection circuit (6), fuse（S）
Both ends be connected in parallel respectively with current-limiting resistance, current detection circuit (6).
5. a kind of mesolow user according to claim 4 overloads caution system, it is characterised in that：The current detecting electricity
Road (6) includes power supply（U1）With power supply（U1）Connect and form the photo-coupler (7) of closed-loop path；
Photo-coupler (7) have 1 port, 2 ports, 3 ports, 4 ports, 1 port of photo-coupler (7), 2 ports respectively with current limliting
Resistance, fuse（S）Connection, 3 ports of photo-coupler (7) and power supply（U1）Connection, 4 ports are connected with counting unit (3).
6. a kind of mesolow user according to claim 5 overloads caution system, it is characterised in that：The current detecting electricity
Road (6) includes warning part, and warning part is connected with 4 ports of photo-coupler (7).
7. a kind of mesolow user according to claim 4 overloads caution system, it is characterised in that：The counting unit
(3) include be connected with current detection circuit (6), warning circuit (5) and according to current detection circuit (6), warning circuit (5) it is defeated
Go out to be worth the control terminal of flip-flop number counting.
8. a kind of mesolow user according to claim 1 overloads caution system, it is characterised in that：The display end (4)
Including the decoder electrically connected with counter, in addition to the nixie display being connected with decoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720363080.6U CN206742838U (en) | 2017-04-08 | 2017-04-08 | A kind of mesolow user overloads caution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720363080.6U CN206742838U (en) | 2017-04-08 | 2017-04-08 | A kind of mesolow user overloads caution system |
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| Publication Number | Publication Date |
|---|---|
| CN206742838U true CN206742838U (en) | 2017-12-12 |
Family
ID=60559588
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720363080.6U Active CN206742838U (en) | 2017-04-08 | 2017-04-08 | A kind of mesolow user overloads caution system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994561A (en) * | 2019-04-30 | 2020-04-10 | 宁德时代新能源科技股份有限公司 | Battery safety protection system and processing method |
| CN112652151A (en) * | 2021-01-19 | 2021-04-13 | 朱丽萍 | Fuse fusing alarm circuit of medical equipment |
-
2017
- 2017-04-08 CN CN201720363080.6U patent/CN206742838U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994561A (en) * | 2019-04-30 | 2020-04-10 | 宁德时代新能源科技股份有限公司 | Battery safety protection system and processing method |
| CN110994561B (en) * | 2019-04-30 | 2021-10-08 | 宁德时代新能源科技股份有限公司 | Battery safety protection system and processing method |
| CN112652151A (en) * | 2021-01-19 | 2021-04-13 | 朱丽萍 | Fuse fusing alarm circuit of medical equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518129 No. 2043 Xuegang North Road, Bantian Street, Longgang District, Shenzhen, Guangdong Province Patentee after: Shenzhen Huajian Power Engineering Technology Co.,Ltd. Address before: 518129 No. 2043 Xuegang North Road, Bantian Street, Longgang District, Shenzhen, Guangdong Province Patentee before: SHENZHEN HUAJIAN ELECTRIC POWER ENGINEERING DESIGN Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |