CN104426145A - Inverse connection prevention circuit and lamp - Google Patents
Inverse connection prevention circuit and lamp Download PDFInfo
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- CN104426145A CN104426145A CN201310407879.7A CN201310407879A CN104426145A CN 104426145 A CN104426145 A CN 104426145A CN 201310407879 A CN201310407879 A CN 201310407879A CN 104426145 A CN104426145 A CN 104426145A
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Abstract
The invention discloses an inverse connection prevention circuit and a lamp. The inverse connection prevention circuit comprises an inverse connection alarm module, a detection module and a switch module, wherein the inverse connection alarm module is used for making an alarm when a battery is inversely connected and is connected with the battery; the detection module is used for detecting whether the battery is inversely connected; the input end of the detection module is connected with a positive terminal; a first output end of the detection module is connected with a negative terminal; the control module is connected with the positive terminal, the negative terminal and the detection module; the switch module is controlled by the control module; the control end of the switch module is connected with the first output end of the control module; the output end of the switch module is connected with the negative terminal; the input end of the switch module is connected with a load; when the detection module detects that the battery is inversely connected, the control module controls the switch module to be closed, so that the connection of the battery and the load is cut off. By adopting the inverse connection prevention circuit, the lamp can be protected when the short circuit happens, and the service life of the lamp is prolonged.
Description
Technical field
The present invention relates to protective circuit, particularly relate to and prevent connecing circnit NOT and light fixture.
Background technology
In daily frock, people, because operate miss, connect inverse time battery, do not have warning and the protection to subordinate's circuit, and this just easily causes the damage of light fixture and driving, greatly reduces the life-span of light fixture, and may to jeopardizing personal safety.
Summary of the invention
The technical problem to be solved in the present invention is the deficiency overcoming the existence of above-mentioned prior art, and proposition one prevents connecing circnit NOT and light fixture, and this invention can connect at battery to be carried out reporting to the police and protecting circuit inverse time, avoids the damage of light fixture and jeopardizes personal safety.
For solving the problems of the technologies described above, the present invention proposes one and prevents connecing circnit NOT, and it comprises: positive terminal, and it is for connecting the positive pole of battery; Negative terminal, it is for connecting the negative pole of battery; Connect anti-alarm module, it is reported to the police for connecing at battery inverse time, and it comprises input and output, and the input connecing anti-alarm module connects negative terminal, and the output connecing anti-alarm module connects positive terminal; Detection module, it is for detecting battery whether reversal connection, and it comprises input, the first output and the second output, and the input of detection module connects positive terminal, and the first output of detection module connects negative terminal; Control module, it comprises optical coupler, the first resistance and the second resistance, the input of the anode connection detection module of optical coupler, second output of the negative electrode connection detection module of optical coupler, between the input that first resistance and the second resistance are connected on detection module successively and the first output, the collector electrode of optical coupler connects the junction of the first resistance and the second resistance; Switch module, it is controlled by control module, and it comprises control end, input and output, and the control end of switch module connects the emitter of optical coupler, and the output of switching tube module connects negative terminal, and the input of switch module connects load; Wherein, when detection module detects battery reversal connection, connect anti-alarm module and report to the police, control module control switch module is closed, thus disconnects the connection of battery and load.
Preferably, connect anti-alarm module and comprise buzzer and the 3rd resistance, the negative pole of buzzer connects the output of anti-alarm module, connects the input of anti-alarm module after positive pole connection the 3rd resistance of buzzer.
Preferably, detection module comprises diode, the 4th resistance and the first switching tube, first switching tube comprises control end, input and output, between the input that diode and the 4th resistance are connected on detection module successively and the first output, the control end of the first switching tube connects the junction of diode and the 4th resistance, second output of the input connection detection module of the first switching tube, the first output of the output connection detection module of the first switching tube.
Preferably, the first switching tube is triode, and the base stage of triode is the control end of the first switching tube, the input of the current collection of triode very the first switching tube, the output of the transmitting of triode very the first switching tube.
Preferably, switch module comprises second switch pipe, second switch pipe comprises control end, input and output, the control end of the control end connecting valve pipe of second switch pipe, the input of the input connecting valve pipe of second switch pipe, the output of the output connecting valve pipe of second switch pipe.
Preferably, second switch pipe comprises metal-oxide-semiconductor, and the grid of metal-oxide-semiconductor connects the control end of second switch pipe, and the source electrode of metal-oxide-semiconductor connects the input of second switch pipe, and the drain electrode of metal-oxide-semiconductor connects the output of second switch pipe.
Preferably, prevent that connecing circnit NOT also comprises reminding module, reminding module comprises input and output, and the input of reminding module connects positive terminal, and the output of reminding module connects load.
Preferably, reminding module comprises the 5th resistance and light-emitting diode, and the 5th resistance and light-emitting diode are connected on input and the output of reminding module successively.
The present invention also proposes a kind of light fixture, and it comprises prevents connecing circnit NOT as above.
Compared with prior art; the present invention has following beneficial effect: of the present inventionly anti-connect circnit NOT and light fixture; inverse time is connect at battery; reported to the police by buzzer; switch disconnects the connection of battery and load, can protect, avoid the damage of light fixture to circuit; extend the life-span of light fixture, avoid jeopardizing personal safety.
Accompanying drawing explanation
Fig. 1 is the anti-electrical block diagram connecing circnit NOT.
Wherein, description of reference numerals is as follows: positive terminal (not shown) negative terminal (not shown) meets anti-alarm module 1 buzzer BELL the 3rd resistance R3 detection module 2 diode D1 the 4th resistance R4 first switching tube Q1 control module 3 optical coupler U1 first resistance R1 second resistance R2 switch module 4 second switch pipe Q2 reminding module 5 the 5th resistance R5 LED battery BT.
Embodiment
In order to further illustrate principle of the present invention and structure, existing by reference to the accompanying drawings to a preferred embodiment of the present invention will be described in detail.
prevent connecing circnit NOT embodiment
Refer to Fig. 1, the present invention proposes a kind of anti-to connect circnit NOT, and it comprises: positive terminal, negative terminal, connect anti-alarm module 1, detection module 2, control module 3, switch module 4 and reminding module 5.
Positive terminal is for connecting the positive pole of battery, negative terminal, for connecting the negative pole of battery, connects anti-alarm module 1 and reports to the police inverse time for connecing at battery, and detection module 2 is for detecting battery whether reversal connection, switch module 4 is controlled by control module 3, and whether reminding module 5 connects instead for pointing out battery.
Connect anti-alarm module 1 and comprise input and output, the input connecing anti-alarm module 1 connects negative terminal, and the output connecing anti-alarm module 1 connects positive terminal.Detection module 2 comprises input, the first output and the second output, and the input of detection module 2 connects positive terminal, and the first output of detection module 2 connects negative terminal.Control module 3 comprises first input end, the second input, the first output and the second output, the first input end of control module 3 connects positive terminal, second output of the second input connection detection module 2 of control module 3, the second output of control module 3 connects negative terminal.Switch module 4 comprises control end, input and output, the first output of the control end link control module 3 of switch module 4, and the output of switching tube module connects negative terminal, and the input of switch module 4 connects load.Reminding module 5 comprises input and output, and the input of reminding module 5 connects positive terminal, and the output of reminding module 5 connects load.Wherein, when detection module 2 detects battery BT reversal connection, connect anti-alarm module 1 and report to the police, reminding module 5 prompting connects anti-, and control module 3 control switch module 4 is closed, thus disconnects the connection of battery BT and load.
Connect anti-alarm module 1 and comprise buzzer BELL and the 3rd resistance R3.The negative pole of buzzer BELL connects the output of anti-alarm module 1, connects the input of anti-alarm module 1 after positive pole connection the 3rd resistance R3 of buzzer BELL.Can see, under normal circumstances, the positive and negative electrode of buzzer BELL is contrary with the both positive and negative polarity of battery BT, and buzzer BELL does not work, and when battery BT connects inverse time, relative buzzer BELL just connects, and buzzer BELL works, and gives the alarm.
Detection module 2 comprises diode D1, the 4th resistance R4 and the first switching tube Q1.First switching tube Q1 comprises control end, input and output.Between the input that diode D1 and the 4th resistance R4 is connected on detection module 2 successively and the first output, the control end of the first switching tube Q1 connects the junction of diode D1 and the 4th resistance R4, second output of the input connection detection module 2 of the first switching tube Q1, the first output of the output connection detection module 2 of the first switching tube Q1.
In the present embodiment, the first switching tube Q1 is triode, and the base stage of triode is the control end of the first switching tube Q1, the input of the current collection of triode very the first switching tube Q1, the output of the transmitting of triode very the first switching tube Q1.In other embodiments, also triode can be replaced with metal-oxide-semiconductor.
Control module 3 comprises optical coupler U1, the first resistance R1 and the second resistance R2.The first input end of the anode link control module 3 of optical coupler U1, the second input of the negative electrode link control module 3 of optical coupler U1.Between the first input end that first resistance R1 and the second resistance R2 is connected on control module 3 successively and the second output.The collector electrode of optical coupler U1 connects the junction of the first resistance R1 and the second resistance R2, the first output of the emitter link control module 3 of optical coupler U1.
Switch module 4 comprises second switch pipe Q2.Second switch pipe Q2 comprises control end, input and output, the control end of the control end connecting valve pipe of second switch pipe Q2, the input of the input connecting valve pipe of second switch pipe Q2, the output of the output connecting valve pipe of second switch pipe Q2.
In the present embodiment, second switch pipe Q2 comprises metal-oxide-semiconductor.The grid of metal-oxide-semiconductor connects the control end of second switch pipe Q2, and the source electrode of metal-oxide-semiconductor connects the input of second switch pipe Q2, and the drain electrode of metal-oxide-semiconductor connects the output of second switch pipe Q2.In other embodiments, metal-oxide-semiconductor can be replaced with triode.
Reminding module 5 comprises the 5th resistance R5 and LED.5th resistance R5 and LED are connected on input and the output of reminding module 5 successively.
Operation principle of the present invention is described in detail below in conjunction with Fig. 1.
As shown in the figure, battery BT is now in and just connects state, and buzzer BELL is reversal connection, and now buzzer BELL does not work, battery BT powers to the base stage of the first switching tube Q1 by diode D1, the 4th resistance R4, the base stage of the first switching tube Q1 is high potential, now the first switching tube Q1 conducting, and U1 obtains electric work and makes the grid of second switch pipe Q2 be in high potential, second switch pipe Q2 conducting, for rear class is powered, LED is now luminous by R5 current limliting, and display circuit normally works.
When battery BT reversal connection, buzzer BELL works sounding alarm.Illustrate and now connect instead.In this course, battery BT connects inverse time, and the base stage of the first switching tube Q1 is in high potential conducting, but now optical coupler U1 does not work, and second switch pipe Q2 grid dead electricity is not worked.Now no-output voltage, prevents late-class circuit from damaging on the contrary because connecing.
Of the present inventionly anti-connect circnit NOT and light fixture, connect inverse time at battery, reported to the police by buzzer, switch disconnects the connection of battery and load, can protect, avoid the damage of light fixture, extend the life-span of light fixture, avoid jeopardizing personal safety to circuit.
light fixture embodiment
The present invention also proposes a kind of light fixture, and it comprises prevents connecing circnit NOT as above.Light fixture longer service life of the present invention, reliability and fail safe higher, and maintenance cost is low.
Compared with prior art; of the present inventionly anti-connect circnit NOT and light fixture; connect inverse time at battery, reported to the police by buzzer, switch disconnects the connection of battery and load; can protect circuit; avoid the damage of light fixture, extend the life-span of light fixture, avoid jeopardizing personal safety; in addition, circuit can also be made not by the impact of surge current.
These are only better possible embodiments of the present invention, not limit the scope of the invention, all utilizations specification of the present invention and the change of the equivalent structure done by accompanying drawing content, be all included in protection scope of the present invention.
Claims (9)
1. prevent connecing a circnit NOT, it is characterized in that, it comprises:
Positive terminal, it is for connecting the positive pole of battery;
Negative terminal, it is for connecting the negative pole of described battery;
Connect anti-alarm module, it is reported to the police for connecing at described battery inverse time, and it comprises input and output, described in connect anti-alarm module input connect described negative terminal, described in connect anti-alarm module output connect described positive terminal;
Detection module, it is for detecting the whether reversal connection of described battery, and it comprises input, the first output and the second output, and the input of described detection module connects described positive terminal, and the first output of described detection module connects described negative terminal;
Control module, it comprises optical coupler, the first resistance and the second resistance, the anode of described optical coupler connects the input of described detection module, the negative electrode of described optical coupler connects the second output of described detection module, between the input that described first resistance and the second resistance are connected on described detection module successively and the first output, the collector electrode of described optical coupler connects the junction of described first resistance and the second resistance;
Switch module, it is controlled by described control module, and it comprises control end, input and output, and the control end of described switch module connects the emitter of described optical coupler, the output of described switching tube module connects described negative terminal, and the input of described switch module connects load;
Wherein, when described detection module detects described battery reversal connection, described in connect anti-alarm module and report to the police, described control module controls described switch module and closes, thus disconnects the connection of described battery and described load.
2. prevent as claimed in claim 1 connecing circnit NOT, it is characterized in that, describedly connect anti-alarm module and comprise buzzer and the 3rd resistance, connect the output of anti-alarm module described in the negative pole connection of described buzzer, described in connecing after described 3rd resistance of positive pole connection of described buzzer, connect the input of anti-alarm module.
3. prevent as claimed in claim 1 connecing circnit NOT, it is characterized in that, described detection module comprises diode, 4th resistance and the first switching tube, described first switching tube comprises control end, input and output, between the input that described diode and the 4th resistance are connected on described detection module successively and the first output, the control end of described first switching tube connects the junction of described diode and the 4th resistance, the input of described first switching tube connects the second output of described detection module, the output of described first switching tube connects the first output of described detection module.
4. prevent as claimed in claim 3 connecing circnit NOT, it is characterized in that, described first switching tube is triode, the base stage of described triode is the control end of described first switching tube, the input of very described first switching tube of current collection of described triode, the output of very described first switching tube of transmitting of described triode.
5. prevent as claimed in claim 1 connecing circnit NOT, it is characterized in that, described switch module comprises second switch pipe, described second switch pipe comprises control end, input and output, the control end of described second switch pipe connects the control end of described switching tube, the input of described second switch pipe connects the input of described switching tube, and the output of described second switch pipe connects the output of described switching tube.
6. prevent as claimed in claim 5 connecing circnit NOT, it is characterized in that, described second switch pipe comprises metal-oxide-semiconductor, the grid of described metal-oxide-semiconductor connects the control end of described second switch pipe, the source electrode of described metal-oxide-semiconductor connects the input of described second switch pipe, and the drain electrode of described metal-oxide-semiconductor connects the output of described second switch pipe.
7. prevent as claimed in claim 1 connecing circnit NOT, it is characterized in that, describedly anti-connect circnit NOT and also comprise reminding module, described reminding module comprises input and output, the input of described reminding module connects described positive terminal, and the output of described reminding module connects described load.
8. prevent as claimed in claim 7 connecing circnit NOT, it is characterized in that, described reminding module comprises the 5th resistance and light-emitting diode, and described 5th resistance and light-emitting diode are connected on input and the output of described reminding module successively.
9. a light fixture, is characterized in that, to comprise as described in claim 1 to 8 any one anti-connects circnit NOT for it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310407879.7A CN104426145B (en) | 2013-09-09 | 2013-09-09 | Prevent reversed circuit and lamps and lanterns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310407879.7A CN104426145B (en) | 2013-09-09 | 2013-09-09 | Prevent reversed circuit and lamps and lanterns |
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| Publication Number | Publication Date |
|---|---|
| CN104426145A true CN104426145A (en) | 2015-03-18 |
| CN104426145B CN104426145B (en) | 2018-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310407879.7A Active CN104426145B (en) | 2013-09-09 | 2013-09-09 | Prevent reversed circuit and lamps and lanterns |
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| Country | Link |
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| CN (1) | CN104426145B (en) |
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| CN104849609A (en) * | 2015-05-29 | 2015-08-19 | 河南森源重工有限公司 | Device for detecting power battery voltage sampling line sequence of electric car |
| CN112803522A (en) * | 2020-12-31 | 2021-05-14 | 深圳市乐迪电子有限公司 | Charging circuit, charging device, charging control method and charging control system |
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| Publication number | Publication date |
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| CN104426145B (en) | 2018-09-11 |
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