CN218040777U - Leakage protector with short-circuit protection - Google Patents
Leakage protector with short-circuit protection Download PDFInfo
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- CN218040777U CN218040777U CN202221828196.XU CN202221828196U CN218040777U CN 218040777 U CN218040777 U CN 218040777U CN 202221828196 U CN202221828196 U CN 202221828196U CN 218040777 U CN218040777 U CN 218040777U
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- 230000001012 protector Effects 0.000 title claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 45
- 230000035945 sensitivity Effects 0.000 claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000008859 change Effects 0.000 claims abstract description 5
- 230000004044 response Effects 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims abstract description 3
- 239000003990 capacitor Substances 0.000 claims description 15
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
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Abstract
The utility model discloses a take short-circuit protection's earth-leakage protector, including zero sequence transformer, power and mechanical protection mechanism, still include detection module, reset switch, the early warning module, sensitivity module and self-interacting module, detection module is connected with early warning module and sensitivity module, change early warning module and detection module response sensitivity through adjusting sensitivity module, detection module detects and send signal to early warning module whether the circuit leaks electricity, early warning module carries out the early warning to the staff, self-interacting module and sensitivity module are connected, control and reset before sensitivity module starts through self-interacting module after the sensitivity module is adjusted, mechanical protection mechanism and detection module are connected, mechanical protection mechanism is used for closing current circuit on-state, reset switch and early warning module are connected, control early warning module resets.
Description
Technical Field
The utility model relates to the technical field of lighting technology, more specifically say, relate to a take short-circuit protection's earth-leakage protector.
Background
The electric leakage of consumer, overload and short circuit or earth current flow through the metal welding seam and arouse that it all can lead to the potential safety hazard to generate heat, in current earth-leakage protector, break off the circuit when detecting that the leakage current exceeds the default, reach the purpose of protection consumer, reset after the trouble is discharged, but can not freely adjust detectivity in some places of using the rank height or low, start peak current also causes the damage of back level circuit easily, through inductance closed loop control mechanical mechanism action in the traditional protector, cause the protector misjudgement easily in the more serious place of interference, and can not carry out early warning and protector auto-lock to personnel after breaking.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model aims at providing a take short-circuit protection's earth-leakage protector, including zero sequence transformer, power and mechanical protection mechanism, still include detection module, reset switch, the early warning module, sensitivity module and self-interacting module, detection module is connected with early warning module and sensitivity module, change early warning module and detection module response sensitivity through adjusting sensitivity module, detection module detects and send signal to early warning module whether the circuit leaks electricity, early warning module carries out the early warning to the staff, self-interacting module and sensitivity module are connected, control and reset before sensitivity module starts through self-interacting module after the sensitivity module is adjusted, mechanical protection mechanism and detection module are connected, mechanical protection mechanism is used for closing current circuit on-state, reset switch and early warning module are connected, control early warning module resets.
Further, the sensitivity module comprises a line 101, a first digital potentiometer R1, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6 and a first triode D1, the line 101 is connected with the output end of the zero sequence transformer, the first digital potentiometer R1 is connected with the line 101, the adjusting end of the first digital potentiometer R1 is connected with one end of the fourth resistor R4 and one end of the third resistor R3 respectively, the other end of the third resistor R3 is connected with the detection module, the emitter and the collector of the first triode D1 are connected with one end of the fifth resistor R5 and one end of the sixth resistor R6 respectively, and the base of the first triode D1 is connected with the detection module.
Further, the detection module includes a line 103, a seventh resistor R7, a third triode D3, an eighth resistor R8 and an execution module, one end of the line 103 is connected to the power supply, the other end is connected to one end of the seventh resistor R7, the base of the first triode D1 is connected to the detection module through the line 103, the other end of the seventh resistor R7 is connected to the collector of the third triode D3, the emitter of the third triode D3 is connected to the eighth resistor R8, the other end of the third resistor R3 is connected to the detection module through the base of the third triode D3, the emitter of the third triode D3 is connected to the execution module, the detection module detects the line and feeds back signals to the execution module in real time, and the early warning module is controlled through the execution module in the detection module.
Further, the execution module includes a first comparator U1, a single-phase thyristor D5, a first coil K1, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a fourth diode D4 and a line 104, an emitter of a third triode D3 and an eighth resistor R8 are connected to the execution module through a positive electrode of the first comparator U1, a negative electrode of the first comparator U1 is connected to the ninth resistor R9, an output end of the first comparator U1 is connected to a D5G electrode of a fifth unidirectional thyristor, a D5A electrode and a K electrode of the fifth unidirectional thyristor are respectively connected to one end of the eleventh resistor R11 and the ground, the other end of the eleventh resistor R11 is connected to the first coil K1, the first coil K1 is connected to the power supply and one end of the tenth resistor R10 in parallel, the mechanical protection mechanism controls the closing of the current line conduction state through the first coil K1, the other end of the tenth resistor R10 is connected to a positive electrode of the fourth diode D4, a negative electrode of the fourth diode D4 is connected to the power supply input end of the first comparator U1, the early warning signal line 104 is connected to the early warning module, and the early warning module is connected to the early warning module through a feedback control module.
Further, the early warning module includes a line 103, a switch S1, a line 102, a twelfth resistor R12, a second resistor R2, a sixth diode D6, and a seventh light emitting diode D7, an output end of the switch S1 is connected to the line 102 and one end of the twelfth resistor R12, the line 102 is connected to the power supply, the twelfth resistor R12 is connected to the second resistor R2, an anode and a cathode of the sixth diode D6 are connected to the second resistor R2 and the detection module, an anode of the seventh diode D7 is connected to the twelfth resistor R12 and the second resistor R2, a cathode of the seventh diode D7 is connected to the ground, and the line 105 is connected to the line 104 in the execution module.
Further, the sensitivity module further comprises a first capacitor C1 and a second diode D2, the first capacitor C1 is connected to the first digital potentiometer and the line 101, the anode of the second diode D2 is connected to the sixth resistor R6, the cathode of the second diode is connected to the fourth resistor R4, the third resistor R3 and the adjusting end of the first digital potentiometer R1, and the line fault is prevented from reversely breaking down the first triode D1 by the second diode D2.
Further, the sensitivity module further comprises a second resistor R2, two ends of the second resistor R2 are respectively connected with the first digital potentiometer R1 and the ground, and the first digital potentiometer R1 is subjected to current limiting through the second resistor R2, so that short circuit caused by damage of the first digital potentiometer R1 is prevented.
Further, the first digital potentiometer R1 is connected to the self-adjusting module, and the post-stage circuit is protected by controlling the resistance value of the first digital potentiometer R1.
Furthermore, the circuit also comprises a second capacitor C2, wherein the second capacitor C2 is connected with the output end of the first comparator U1, and the amplified signal is filtered through the second capacitor C2.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the prior art and the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is the utility model provides a pair of take short-circuit protection's earth-leakage protector sketch map.
Detailed Description
For the purposes of promoting a clear understanding of the objects and advantages of the invention, reference will now be made in detail to the embodiments of the invention, it being understood that the following text is only intended to illustrate one or more specific embodiments of the invention, and is not intended to limit the scope of the invention as particularly claimed.
Referring to the drawings the utility model relates to a take short-circuit protection's earth-leakage protector, including zero sequence transformer, power and mechanical protection mechanism, still include the detection module, reset switch, the early warning module, sensitivity module and self-interacting module, the detection module is connected with early warning module and sensitivity module, change early warning module and detection module response sensitivity through adjusting sensitivity module, whether detection module detects and send signal to early warning module to the circuit electric leakage, the early warning module carries out the early warning to the staff, self-interacting module and sensitivity module are connected, control and reset before sensitivity module starts through self-interacting module after the sensitivity module is adjusted, mechanical protection mechanism and detection module are connected, mechanical protection mechanism is used for closing current circuit on-state, reset switch and early warning module are connected, control early warning module resets.
Specifically, the sensitivity module comprises a line 101, a first digital potentiometer R1, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6 and a first triode D1, wherein the line 101 is connected with the output end of the zero sequence transformer, the first digital potentiometer R1 is connected with the line 101, the adjusting end of the first digital potentiometer R1 is connected with one ends of the fourth resistor R4 and the third resistor R3 respectively, the other end of the third resistor R3 is connected with the detection module, the emitting electrode and the collecting electrode of the first triode D1 are connected with one ends of the fifth resistor R5 and the sixth resistor R6 respectively, and the base electrode of the first triode D1 is connected with the detection module.
Specifically, the detection module includes a line 103, a seventh resistor R7, a third triode D3, an eighth resistor R8 and an execution module, one end of the line 103 is connected to the power supply, the other end is connected to one end of the seventh resistor R7, the base of the first triode D1 is connected to the detection module through the line 103, the other end of the seventh resistor R7 is connected to the collector of the third triode D3, the emitter of the third triode D3 is connected to the eighth resistor R8, the other end of the third resistor R3 is connected to the detection module through the base of the third triode D3, the emitter of the third triode D3 is connected to the execution module, the detection module detects the line and feeds back signals to the execution module in real time, and the early warning module is controlled through the execution module in the detection module.
Specifically, the execution module includes a first comparator U1, a single-phase thyristor D5, a first coil K1, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a fourth diode D4 and a line 104, an emitter of a third triode D3 and an eighth resistor R8 are connected to the execution module through a positive electrode of the first comparator U1, a negative electrode of the first comparator U1 is connected to the ninth resistor R9, an output end of the first comparator U1 is connected to a D5G electrode of a fifth unidirectional thyristor, a D5A electrode and a K electrode of the fifth unidirectional thyristor are respectively connected to one end of the eleventh resistor R11 and the ground, the other end of the eleventh resistor R11 is connected to the first coil K1, the first coil K1 is connected to a power supply and one end of the tenth resistor R10 in parallel, the mechanical protection mechanism controls the current circuit conduction state through the first coil K1, the other end of the tenth resistor R10 is connected to a positive electrode of the fourth diode D4, a negative electrode of the fourth diode D4 is connected to the power supply input end of the first comparator U1, the early warning module is connected to the early warning module through a feedback control signal 104, and the early warning module.
Specifically, the early warning module includes a line 105, a switch S1, a line 102, a twelfth resistor R12, a second resistor R2, a sixth diode D6, and a seventh light emitting diode D7, an output end of the switch S1 is connected to the line 102 and one end of the twelfth resistor R12, the line 102 is connected to the power supply, the twelfth resistor R12 is connected to the second resistor R2, an anode and a cathode of the sixth diode D6 are connected to the second resistor R2 and the detection module, an anode of the seventh diode D7 is connected to the twelfth resistor R12 and the second resistor R2, a cathode of the seventh diode D7 is connected to the ground, and the line 105 is connected to the line 104 in the execution module.
Specifically, the sensitivity module further includes a first capacitor C1 and a second diode D2, the first capacitor C1 is connected to the first digital potentiometer and the line 101, an anode of the second diode D2 is connected to the sixth resistor R6, a cathode of the second diode is connected to the fourth resistor R4, the third resistor R3 and the adjustment end of the first digital potentiometer R1, and the line fault is prevented from reversely breaking through the first triode D1 by the second diode D2.
Specifically, the sensitivity module further comprises a second resistor R2, two ends of the second resistor R2 are respectively connected to the first digital potentiometer R1 and the ground, and the first digital potentiometer R1 is limited by the second resistor R2, so that short circuit caused by damage to the first digital potentiometer R1 is prevented.
Specifically, the first digital potentiometer R1 is connected to the self-adjusting module, and the post-stage circuit is protected by controlling the resistance value of the first digital potentiometer R1.
Specifically, the amplifier further comprises a second capacitor C2, wherein the second capacitor C2 is connected to the output end of the first comparator U1, and the amplified signal is filtered through the second capacitor C2.
Specifically, a line 101 receives a zero sequence sensor signal, a line 102 and a line 103 are connected with a power supply, a line 104 is connected with a line 105, the zero sequence sensor detects a current difference value in the line and sends a signal to the line 101, a C1 capacitor filters the signal, the signal forms a loop after passing through R1 and R2, the signal passes through R3 and D3 base electrodes again after passing through an R1 adjusting end, the signal passes through U1 and U1 after D3 is conducted, the signal is compared after U1 is conducted, when the line current difference value is larger than a preset value, the U1 sends a signal to a D5G pole, D5 is conducted, K1 forms a loop, a mechanical protection mechanism acts to protect the line, namely, the signal flowing out from the R1 adjusting end passes through R4, R5 and D1 simultaneously, and the D3 is conducted, D1 base signal forms the return circuit, and amplify D3 through D1 collecting electrode, the magnification is adjusted through R1, when both adjusting R1, change the signal size that flows into U1 comparator, both adjust early warning module and detection module' S response sensitivity, because of line 104 is connected with 105, both send signal to 105 during K1 action, S1 is closed, the signal passes through R12 and D7, carry out the early warning, pass through the back stage circuit simultaneously in proper order and make U1 output real-time transmission signal, K1 is closed and forms the auto-lock, S1 resets until the fault discharge back, because of R1 is connected with self-adjusting module, adjust R1 during the start-up and prevent that starting current from causing the damage to back stage circuit, reset to R1 after the start-up and carry out work.
Claims (9)
1. The utility model provides a take short-circuit protection's earth-leakage protector, includes zero sequence mutual-inductor, power and mechanical protection mechanism, its characterized in that still includes detection module, reset switch, early warning module, sensitivity module and self-interacting module, detection module is connected with early warning module and sensitivity module, change early warning module and detection module response sensitivity through adjusting sensitivity module, detection module detects whether the circuit leaks electricity and sends signals to early warning module, early warning module carries out the early warning to the staff, self-interacting module and sensitivity module are connected, control and reset before sensitivity module starts through self-interacting module after the sensitivity module is adjusted, mechanical protection mechanism and detection module are connected, mechanical protection mechanism is used for closing current circuit conducting state, reset switch and early warning module are connected, control early warning module resets.
2. The earth leakage protector with short-circuit protection as claimed in claim 1, wherein the sensitivity module includes a line 101, a first digital potentiometer R1, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6 and a first triode D1, the line 101 is connected to an output terminal of the zero-sequence transformer, the first digital potentiometer R1 is connected to the line 101, an adjusting terminal of the first digital potentiometer R1 is connected to one ends of the fourth resistor R4 and the third resistor R3, respectively, the other end of the third resistor R3 is connected to the detection module, an emitter and a collector of the first triode D1 are connected to one ends of the fifth resistor R5 and the sixth resistor R6, respectively, and a base of the first triode D1 is connected to the detection module.
3. A leakage protector with short-circuit protection according to claim 2, wherein the detection module comprises a circuit 103, a seventh resistor R7, a third triode D3, an eighth resistor R8 and an execution module, one end of the circuit 103 is connected to a power supply, the other end is connected to one end of the seventh resistor R7, the base of the first triode D1 is connected to the detection module through the circuit 103, the other end of the seventh resistor R7 is connected to the collector of the third triode D3, the emitter of the third triode D3 is connected to the eighth resistor R8, the other end of the third resistor R3 is connected to the detection module through the base of the third triode D3, the emitter of the third triode D3 is connected to the execution module through the eighth resistor R8, the detection module detects the circuit and feeds back a signal to the execution module in real time, and the early warning module is controlled by the execution module in the detection module.
4. The earth leakage protector with short-circuit protection as claimed in claim 3, wherein the execution module includes a first comparator U1, a single thyristor D5, a first coil K1, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a fourth diode D4 and a line 104, the emitter of the third triode D3 and the eighth resistor R8 are connected to the execution module through the positive electrode of the first comparator U1, the negative electrode of the first comparator U1 is connected to the ninth resistor R9, the output terminal of the first comparator U1 is connected to the D5G electrode of the fifth unidirectional thyristor, the D5A electrode and the K electrode of the fifth unidirectional thyristor are respectively connected to one end of the eleventh resistor R11 and ground, the other end of the eleventh resistor R11 is connected to the first coil K1, the first coil K1 is connected to the power supply and one end of the tenth resistor R10 in parallel, the current line conduction state of the mechanical protection mechanism is controlled by turning on/off the first coil K1, the other end of the tenth resistor R10 is connected to the fourth diode D4, the early warning module is connected to the early warning signal feedback control module through the negative electrode of the early warning module 104.
5. The earth leakage protector with short-circuit protection as claimed in claim 3, wherein the early warning module includes a circuit 103, a switch S1, a circuit 102, a twelfth resistor R12, a second resistor R2, a sixth diode D6 and a seventh light emitting diode D7, the output terminal of the switch S1 is connected to the circuit 102 and one end of the twelfth resistor R12 respectively, the circuit 102 is connected to the power supply, the twelfth resistor R12 is connected to the second resistor R2, the anode and cathode of the sixth diode D6 are connected to the second resistor R2 and the detection module respectively, the anode of the seventh diode D7 is connected to the twelfth resistor R12 and the second resistor R2, the cathode of the seventh diode D7 is connected to ground, and the circuit 105 is connected to the circuit 104 in the execution module.
6. A leakage protector with short-circuit protection as claimed in claim 2, wherein the sensitivity module further comprises a first capacitor C1 and a second diode D2, the first capacitor C1 is connected to the first digital potentiometer and the line 101, the anode of the second diode D2 is connected to the sixth resistor R6, the cathode of the second diode is connected to the fourth resistor R4, the third resistor R3 and the adjustment terminal of the first digital potentiometer R1, and the second diode D2 prevents the line fault from breaking the first triode D1 in reverse direction.
7. The earth leakage protector with short-circuit protection as claimed in claim 6, wherein the sensitivity module further comprises a second resistor R2, two ends of the second resistor R2 are respectively connected to the first digital potential R1 and ground, and the second resistor R2 is used to limit the current of the first digital potentiometer R1, so as to prevent the first digital potentiometer R1 from being damaged and causing short circuit.
8. A leakage protector with short-circuit protection as claimed in claim 2, wherein the first digital potentiometer R1 is connected to the self-adjusting module, and the post-stage circuit is protected by controlling the resistance of the first digital potentiometer R1.
9. The earth leakage protector with short-circuit protection as claimed in claim 4, further comprising a second capacitor C2, wherein the second capacitor C2 is connected to the output terminal of the first comparator U1, and the amplified signal is filtered by C2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221828196.XU CN218040777U (en) | 2022-07-15 | 2022-07-15 | Leakage protector with short-circuit protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221828196.XU CN218040777U (en) | 2022-07-15 | 2022-07-15 | Leakage protector with short-circuit protection |
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| Publication Number | Publication Date |
|---|---|
| CN218040777U true CN218040777U (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221828196.XU Active CN218040777U (en) | 2022-07-15 | 2022-07-15 | Leakage protector with short-circuit protection |
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| CN (1) | CN218040777U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116982804A (en) * | 2023-06-27 | 2023-11-03 | 湖南步升取暖科技股份有限公司 | Multifunctional gas-electric heating lifting tea table |
| CN117016965A (en) * | 2023-07-05 | 2023-11-10 | 湖南步升取暖科技股份有限公司 | Fault emergency safety protection heating tea table |
-
2022
- 2022-07-15 CN CN202221828196.XU patent/CN218040777U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116982804A (en) * | 2023-06-27 | 2023-11-03 | 湖南步升取暖科技股份有限公司 | Multifunctional gas-electric heating lifting tea table |
| CN116982804B (en) * | 2023-06-27 | 2024-05-31 | 湖南步升取暖科技股份有限公司 | Multifunctional gas-electric heating lifting tea table |
| CN117016965A (en) * | 2023-07-05 | 2023-11-10 | 湖南步升取暖科技股份有限公司 | Fault emergency safety protection heating tea table |
| CN117016965B (en) * | 2023-07-05 | 2024-04-05 | 湖南步升取暖科技股份有限公司 | Fault emergency safety protection heating tea table |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hunan Bu Sheng Hong New Material Technology Co.,Ltd. Assignor: Hunan Busheng Heating Technology Co.,Ltd. Contract record no.: X2024980017686 Denomination of utility model: A leakage protector with short-circuit protection Granted publication date: 20221213 License type: Common License Record date: 20241010 Assignee: Xinhua County Guokang Electric Appliance Co.,Ltd. Assignor: Hunan Busheng Heating Technology Co.,Ltd. Contract record no.: X2024980017685 Denomination of utility model: A leakage protector with short-circuit protection Granted publication date: 20221213 License type: Common License Record date: 20241010 |