CN214174512U - Anti-disturbance leakage protection periodic test prompter - Google Patents
Anti-disturbance leakage protection periodic test prompter Download PDFInfo
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- CN214174512U CN214174512U CN202022391332.0U CN202022391332U CN214174512U CN 214174512 U CN214174512 U CN 214174512U CN 202022391332 U CN202022391332 U CN 202022391332U CN 214174512 U CN214174512 U CN 214174512U
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Abstract
The utility model discloses an anti-disturbance leakage protection periodic test prompter, which comprises a shell and a plug inserted on a commercial power socket of an output power line of a tested leakage protector, wherein the plug is connected with a live wire L, a zero wire N and a ground wire PE, a controller with a countdown function and a built-in periodic test period is arranged in the shell, the controller is connected with a display circuit for sending a test prompt signal, a signal amplification processing circuit which is connected with a human body induction sensor and is used for amplifying and processing the induction signal of the induction sensor, a test button, a ground pulse current generation circuit which is used for generating the ground pulse current under the control of a controller when the test button is pressed, a low voltage detection circuit which is used for detecting the countdown of the controller entering the next period test when the test button is pressed, the disturbance of prompt sound when a user has a sleep and the invalid prompt sound when no one is available can not be processed in time for a long time, possibly disturbing neighbors.
Description
[ technical field ]
The utility model relates to an anti-disturbing earth leakage protection periodic test prompter.
[ background art ]
In daily production and life, electrical disasters caused by improper electricity utilization or line leakage sometimes occur, and immeasurable casualties and property loss are caused. The installation of a leakage protector in a low-voltage distribution system is an effective measure for avoiding electric fire and electric equipment damage accidents caused by personal electric shock casualty accidents and leakage. The electrical installation regulations of most countries require that the performance of the protector is regularly detected, and the electric power safety regulations of China require that the leakage protector is tested and detected at least once every month to verify whether the leakage protection function is normal. However, over 90% of users do not have regular tests on demand, the risk is not underestimated, and therefore it is necessary to remind the users regularly to test the tests, while preventing unnecessary disturbances, and unfortunately no corresponding product is available on the market to solve the above problems.
[ contents of utility model ]
The utility model overcomes above-mentioned technique is not enough, provides an anti-disturbing earth leakage protection periodic test prompting device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an prevent disturbing earth leakage protection periodic test prompting device which characterized in that: comprises a shell and a plug which is used for being plugged in a commercial power socket of an output power line of a tested leakage protector, the plug is connected with a live wire L, a zero line N and a ground wire PE, a controller which is internally provided with a regular test period and has a countdown function is arranged in the shell, the controller is connected with a display circuit which can send out a test prompt signal after reaching a test period, a signal amplification processing circuit which is connected with an induction sensor for inducing a human body and is used for amplifying and processing the induction signal of the induction sensor, a test button for inputting a test instruction, a grounding pulse current generation circuit which is arranged between a live wire L and a ground wire PE or between a zero line N and the ground wire PE and is controlled by the controller to generate grounding pulse current when the test button is pressed, and a low-voltage detection circuit which is arranged between the live wire L and the zero line N and is used for detecting that a leakage protector trips to enable a socket to lose power when the test button is pressed so as to enable the controller to enter the next period for test countdown.
The anti-disturbance leakage protection periodic test prompter is characterized in that: the controller is connected with a keyboard for setting a periodic test period.
The anti-disturbance leakage protection periodic test prompter is characterized in that: and the sound prompting circuit is used for sending out a test prompting sound after the controller receives the amplified induction signal.
The anti-disturbance leakage protection periodic test prompter is characterized in that: the controller is connected with a panoramic light control circuit used for sensing the brightness of the panoramic.
The anti-disturbance leakage protection periodic test prompter is characterized in that: the controller is connected with an overvoltage detection circuit which is arranged between the live wire L and the zero line N and is used for detecting that when the voltage of the live wire exceeds a set value of the voltage of the live wire, the ground pulse current generation circuit works so as to enable the leakage protector to trip.
The anti-disturbance leakage protection periodic test prompter is characterized in that: the controller is connected with a ground wire live detection circuit which is arranged between the zero line N and the ground wire PE and is used for controlling the sound prompt circuit to alarm and controlling the ground pulse current generation circuit to work to enable the leakage protector to trip when the voltage of the detected wire PE exceeds the set value of the ground wire voltage.
The anti-disturbance leakage protection periodic test prompter is characterized in that: and the live wire L is connected with a power-taking holding circuit which is used for supplying power to the controller and can also keep supplying power after power failure.
The utility model has the advantages that:
1. the utility model discloses can regularly indicate the experimental earth leakage protector that detects of user.
2. The utility model discloses can prevent that the disturbance of suggestion sound when user sleep rest and the invalid suggestion sound when unmanned can not in time be handled for a long time, probably disturb the neighbor.
3. When the test button is pressed, the leakage protector automatically stops prompting sound after acting, otherwise, the prompting sound is continuously emitted, and the prompting effect is favorably enhanced.
4. The test current pulse width can be accurately controlled, and the test element is not damaged by overlong key pressing time.
5. The device has the functions of live alarm of the zero line, trip protection and zero line breakage detection.
6. It can also have the function of over-voltage trip protection.
[ description of the drawings ]
Fig. 1 is a schematic block diagram of embodiment 1 of the present invention;
fig. 2 is a schematic block diagram of embodiment 2 of the present invention;
fig. 3 is a schematic block diagram of embodiment 3 of the present invention;
fig. 4 is a schematic block diagram of embodiment 4 of the present invention.
[ detailed description of the invention ]
The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Other embodiments obtained by those skilled in the art without any inventive work based on the embodiments in the embodiment belong to the protection scope of the present invention.
Example 1:
as shown in figure 1, the anti-disturbance leakage protection periodic test prompter comprises a shell 1 and a plug 2 inserted into a commercial power socket of an output power line of a tested leakage protector, wherein the plug 2 is connected with a live wire L, a zero wire N and a ground wire PE, a controller 8 which is internally provided with a periodic test period and has a countdown function is arranged in the shell 1, the controller 8 is connected with a keyboard 11 for setting the periodic test period, a display circuit 10 for sending out a test prompt signal after reaching the test period, a signal amplification processing circuit 7 which is connected with an induction sensor 6 for inducing a human body and is used for amplifying the induction signal of the induction sensor 6, a sound prompt circuit 13 for sending out a test prompt sound after the controller 8 receives the amplified induction signal, a test button 12 for inputting a test instruction, and a grounding pulse current which is arranged between the live wire L and the ground wire PE and is controlled by the controller 8 to generate grounding pulse current when the test button 12 is pressed The low-voltage detection circuit 4 is arranged between the live wire L and the zero wire N and used for detecting that the leakage protector trips to cause the socket to lose power when the test button 12 is pressed, so that the controller 8 enters the next period of test countdown.
The controller 8 can be an intelligent chip such as a microcontroller, a single chip microcomputer, a digital signal processor and a programmable logic device.
The working principle is as follows:
after the plug is inserted into a mains supply socket, a regular test period is set by a keyboard 11, for example, 30 days, a controller 8 starts to count down, a prompt signal from the test period to the test period is not sent before the test period is not reached, after the test period is reached, a display circuit can send the prompt signal from the test period to the test period, if no person goes to sleep and rest at night, the induction sensor 6 does not output an induction signal, a sound prompt circuit 13 does not send out a prompt sound, when the person goes to indicate that the person is moving, the prompt sound is not influenced and can effectively prompt, if no person goes, the prompt sound is invalid, the induction sensors such as an infrared pyroelectric sensor, a radar induction sensor, a capacitance induction sensor and the like can sense the induction signals which the person goes through, the induction signals are amplified by a signal amplification processing circuit 7 and then transmitted to the controller 8, and the sound prompt circuit 13 is controlled to send out the prompt sound, after the suggestion user presses test button 12, controller 8 control ground pulse produces circuit 9 and produces the pulse current simulation human electric shock that flows into ground wire PE from live wire L through ground current production circuit 9, can accurate setting and control test current pulse width, need not worry that the button time overlength damages test element, if socket power department is equipped with earth leakage protector, then can the action trip, the socket loses the electricity, voltage drop, low-voltage detection circuit 4 output signal gives controller 8, controller 8 control sound suggestion circuit 13 stops to send the suggestion sound, if earth leakage protector is invalid, can not act the trip, the socket can not lose the electricity, sound suggestion circuit 13 can continue to send the suggestion sound, controller 8 signals simultaneously shows the trouble for display circuit 10.
The controller 8 is connected with a surround view light control circuit 14 for sensing the brightness of the surround view, a user turns off the light at night for rest, and when the surround view light control circuit 14 senses that the surround view light is low and dark, a signal is output to the controller 8 to lock the sound prompt circuit 13, so that the user is prevented from being disturbed.
The controller 8 is connected with an overvoltage detection circuit 3 which is arranged between the live wire L and the zero line N and is used for detecting that when the voltage of the live wire exceeds a set value of the voltage of the live wire, the grounding pulse current generation circuit 9 works so as to trip the leakage protector; one end of the overvoltage detection circuit 3 is connected with the live wire L, the other end is connected with the zero line N, when the voltage exceeds a set value, the overvoltage detection circuit 3 sends a signal to the controller 8, and the controller 8 controls the grounding pulse generation circuit 9 to generate pulse current flowing into the ground wire from the live wire, so that the leakage protector at the socket power supply can be tripped, and the overvoltage tripping protection function is realized.
The controller 8 is connected with a ground wire live detection circuit 5 which is arranged between the zero line N and the ground wire PE and is used for controlling the sound prompt circuit 13 to give an alarm and controlling the grounding pulse current generation circuit 9 to work to cause the leakage protector to trip when the voltage of the ground wire PE exceeds a set value of the ground wire voltage; the earth wire live detection circuit 5 is connected with an earth wire PE, the other end is connected with a zero line N, the third end is connected with the controller 8, when the voltage of the earth wire live earth wire to the zero line exceeds a set voltage such as 36V or 50V for some reason, the earth wire live detection circuit 5 sends a signal to the controller 8, the controller 8 controls the sound prompt circuit 13 to send an alarm signal, and controls the earth pulse generating circuit 9 to generate a pulse current flowing into the earth wire from a live wire, so that the action of a leakage protector at a socket power supply can be tripped, the earth wire live alarm and trip protection functions are realized, and if the zero line is broken and cannot be tripped, an alarm can be given to inform a user that the user does not contact with a live equipment shell and the processing is carried out as soon as possible.
When the ground wire PE is disconnected, the leakage protector does not act when a user presses the test button 12, the voltage of the ground wire PE to the zero line is increased to a set value of electrified ground wire, whether the leakage protector trips or not, and if the ground wire PE is electrified during test, the ground wire PE is judged to be disconnected, so that the ground wire PE disconnection detection function is achieved.
Example 2:
as shown in fig. 2, the difference from embodiment 1 is that a ground current generating circuit 9 is provided between the neutral wire N and the ground wire PE, and when a test button 12 is pressed at the time of the test, the controller 8 sends a signal to the ground current generating circuit 9, and a current flows from the neutral wire N to the ground wire PE through the ground current generating circuit 9.
Example 3:
the live wire L is connected to a power-taking circuit for supplying power to the controller 8 or a power-taking holding circuit 15 for supplying power to the controller 8 and capable of holding power supply after power loss.
As shown in fig. 3, the difference between the embodiment 3 and the embodiment 1 is that the power-taking circuit diagram 1 of the embodiment 1 is changed into the power-taking holding circuit 15, which not only provides working power to the active element when the live wire is charged, but also provides working power to the active element when the leakage protector is tripped, and after the live wire is lost, the working power is provided to the active element continuously, and the information such as trip time, ground wire PE disconnection or charging can be displayed without power restoration.
Example 4:
as shown in fig. 4, the difference between the embodiment 4 and the embodiment 2 is that the power-taking circuit diagram 2 of the embodiment 2 is changed into the power-taking holding circuit 15, which not only provides working power to the active element when the live wire is charged, but also provides working power to the active element when the leakage protector is tripped, and after the live wire is lost, the working power is continuously provided to the active element, and the information such as trip time, ground wire PE disconnection or charging can be displayed without power restoration.
The above description is only exemplary of the present invention and should not be taken as limiting, and any modifications, equivalents, or improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.
Claims (7)
1. The utility model provides an prevent disturbing earth leakage protection periodic test prompting device which characterized in that: the device comprises a shell (1) and a plug (2) which is inserted into a commercial power socket of an output power line of a leakage testing protector, wherein the plug (2) is connected with a live wire L, a zero wire N and a ground wire PE, a controller (8) which is internally provided with a periodic test period and has a countdown function is arranged in the shell (1), the controller (8) is connected with a display circuit (10) which can send out a test prompt signal after reaching the test period, a signal amplification processing circuit (7) which is connected with a human body induction sensor (6) and used for amplifying the induction signal of the induction sensor (6), a test button (12) for inputting a test instruction, and a grounding pulse current generation circuit (9) which is arranged between the live wire L and the ground wire PE or between the zero wire N and the ground wire PE and used for generating grounding pulse current under the control of the controller (8) when the test button (12) is pressed, And the low-voltage detection circuit (4) is arranged between the live wire L and the zero wire N and is used for detecting that when the test button (12) is pressed, the leakage protector trips to enable the socket to lose power, so that the controller (8) enters the next period for test countdown.
2. The anti-disturbance leakage protection periodic test prompter as claimed in claim 1, wherein: the controller (8) is connected with a keyboard (11) for setting a periodic test period.
3. The anti-disturbance leakage protection periodic test prompter as claimed in claim 1, wherein: and the sound prompt circuit (13) is used for sending out a test prompt sound after the controller (8) receives the amplified induction signal.
4. The anti-disturbance leakage protection periodic test prompter as claimed in claim 1, wherein: the controller (8) is connected with a panoramic light control circuit (14) for sensing the brightness of the panoramic light.
5. The anti-disturbance leakage protection periodic test prompter as claimed in claim 1, wherein: the controller (8) is connected with an overvoltage detection circuit (3) which is arranged between the live wire L and the zero line N and is used for detecting that when the voltage of the live wire exceeds a set value of the voltage of the live wire, the ground pulse current generation circuit (9) works so as to trip the leakage protector.
6. The anti-disturbance leakage protection periodic test prompter as claimed in claim 1, wherein: the controller (8) is connected with a ground wire live detection circuit (5) which is arranged between the zero line N and the ground wire PE and is used for controlling a voice prompt circuit (13) to give an alarm and controlling a grounding pulse current generation circuit (9) to work to enable the leakage protector to trip when the voltage of the ground wire PE exceeds a set value of the ground wire voltage.
7. The anti-disturbance leakage protection periodic test prompter as claimed in claim 1, wherein: and the live wire L is connected with a power supply holding circuit (15) which is used for supplying power to the controller (8) and can also keep supplying power after power failure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022391332.0U CN214174512U (en) | 2020-10-23 | 2020-10-23 | Anti-disturbance leakage protection periodic test prompter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022391332.0U CN214174512U (en) | 2020-10-23 | 2020-10-23 | Anti-disturbance leakage protection periodic test prompter |
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| CN214174512U true CN214174512U (en) | 2021-09-10 |
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| CN202022391332.0U Active CN214174512U (en) | 2020-10-23 | 2020-10-23 | Anti-disturbance leakage protection periodic test prompter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117008070A (en) * | 2023-10-07 | 2023-11-07 | 成都世源频控技术股份有限公司 | Radar simulator with electric leakage detection function |
-
2020
- 2020-10-23 CN CN202022391332.0U patent/CN214174512U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117008070A (en) * | 2023-10-07 | 2023-11-07 | 成都世源频控技术股份有限公司 | Radar simulator with electric leakage detection function |
| CN117008070B (en) * | 2023-10-07 | 2023-12-19 | 成都世源频控技术股份有限公司 | Radar simulator with electric leakage detection function |
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