CN114334537B - Backup protector of gapless surge protector - Google Patents
Backup protector of gapless surge protector Download PDFInfo
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- CN114334537B CN114334537B CN202111458579.2A CN202111458579A CN114334537B CN 114334537 B CN114334537 B CN 114334537B CN 202111458579 A CN202111458579 A CN 202111458579A CN 114334537 B CN114334537 B CN 114334537B
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- 230000001012 protector Effects 0.000 title claims abstract description 58
- 238000001514 detection method Methods 0.000 claims abstract description 47
- 230000004888 barrier function Effects 0.000 claims abstract description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 7
- 229910052744 lithium Inorganic materials 0.000 claims description 7
- 230000003068 static effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The invention belongs to the technical field of lightning surge protection equipment, in particular to a backup protector of a gapless surge protector, which comprises a shell, a release assembly and an arc barrier, wherein one side of the interior of the shell is fixedly connected with a first wiring terminal used for connecting a power grid, the other side of the interior of the shell is fixedly connected with a second wiring terminal connected with a ground wire, one end of the first wiring terminal is connected with the release assembly used for receiving and detecting surge signals and circuit short-circuit signals, and the release assembly comprises a current transformer used for receiving the surge signals and the circuit short-circuit signals of the first wiring terminal. According to the invention, the arc-shield plate is arranged, the fixed contact and the movable contact are arranged on two sides of the arc-shield plate, the standby contact is arranged on one side of the fixed contact, so that hidden danger caused by failure of the movable contact is avoided, and meanwhile, the circuit detection assembly is arranged on the equipment, so that the problems of unsatisfactory working stability and poor circuit safety of the protector in the current stage are solved.
Description
Technical Field
The invention relates to the technical field of lightning surge protection equipment, in particular to a backup protector of a gapless surge protector.
Background
The backup protector of the surge protector is a special backup protector connected in series before the surge protector (surge protector) in the low-voltage distribution system, namely a special backup protector or an external tripping device (protector) for the surge protector, the special backup protector of the surge protector solves the safety problem that the surge protector is tripped rapidly when dangerous power frequency follow current or dangerous power frequency leakage current occurs to the surge protector, and the surge protector does not trip mistakenly when lightning passes, ensures that the surge protector does not fire, the equipment lightning protection is effective continuously, solves the problem of protection dead zone existing when the fuse protector or the circuit breaker is widely used as the protector at the front end of the surge protector at present, and is an ideal special backup protector for the voltage switch type surge protector and the voltage limiting type surge protector of the low-voltage power supply system.
1. Firstly, the use stability of the backup protector of the surge protector at the present stage is not ideal enough, when the power grid is influenced by lightning factors, the movable contact can be closed to the static contact, and surge is released in time, but the distance between the movable contact and the static contact and the closing mode are not easy to control, electric arcs are easy to generate under specific conditions, great potential safety hazards can be caused when the static contact fails, and the use effect is not ideal.
2. Secondly, the backup protector of the current surge protector lacks a circuit detection component, so that manual detection of a circuit cannot be realized, once the circuit is damaged, workers cannot timely find the circuit, serious consequences can be caused, and the use safety and stability of the circuit are not ideal.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides the backup protector of the gapless surge protector, and the backup contact is arranged on one side of the fixed contact by arranging the arc-shaped plate, so that hidden danger caused by failure of the movable contact is avoided, and meanwhile, the circuit detection assembly is arranged on the equipment, so that the problems of unsatisfactory working stability and poor circuit safety of the protector in the prior art are solved.
(II) technical scheme
The invention adopts the following technical scheme for realizing the purposes:
the backup protector of the gapless surge protector comprises a shell, a release assembly and an arc-shaped baffle plate, wherein one side of the interior of the shell is fixedly connected with a first wiring terminal used for connecting a power grid, the other side of the interior of the shell is fixedly connected with a second wiring terminal connected with a ground wire, one end of the first wiring terminal is connected with the release assembly used for receiving and detecting surge signals and circuit short-circuit signals, the release assembly comprises a current transformer used for receiving the surge signals and the circuit short-circuit signals of the first wiring terminal, the current transformer is connected with an actuator, the arc-shaped baffle plate is fixedly connected with one side of the interior of the shell, a fixed contact and a movable contact are correspondingly arranged on positioning rails arranged on two sides of the arc-shaped baffle plate, the actuator responds to the surge signals and the circuit short-circuit signals and drives the movable contact to approach the fixed contact, the stationary contact is connected with a standby line and an electromagnetic coil in parallel, a current detection module for detecting circuit current is arranged on a line bank connected with one side of the electromagnetic coil, the tail end of a transmission line of the line bank is connected in series with a second wiring terminal, a processor module for receiving output signals of a current transformer and output signals of the current detection module is arranged in the shell, an alarm and an indicator for displaying the state of the internal line of the shell are arranged on the outer wall of the shell, the output end of the processor module is respectively and electrically connected with the input end of the alarm and the input end of the indicator, a small circuit board is arranged on one side of the interior of the shell, a standby contact matched with the stationary contact is arranged at the position corresponding to the stationary contact on the electromagnetic switch of the small circuit board, the standby contact is fixedly connected on the shell through a connecting seat, the output end of the processor module is electrically connected with the input end of the electromagnetic switch; the tripping device component detects lightning signals of a power grid and short-circuit signals of a circuit, the movable contact is controlled to be close to the fixed contact through an internal actuator to form a passage, surge is discharged in time, the passage can be formed in the moment of lightning occurrence through arranging the electromagnetic coil on the circuit, the circuit safety is ensured when no surge occurs, the output signals of the current transformer and the output signals of the current detection module are transmitted to the processor module, the circuit is detected on two sides, and if necessary, the processor module controls the electromagnetic switch to switch on the circuit, so that the standby contact is close to the fixed contact to form the passage, the malfunction of the movable contact is avoided, and the circuit stability is ensured to the greatest extent.
The circuit detection assembly is arranged on the side wall of the shell and is connected in series between the fixed contact and the second wiring terminal, the circuit detection assembly comprises a bottom plate fixedly connected to the side wall of the shell, a manual operation switch and a display lamp are arranged on the bottom plate, the manual operation switch and the display lamp are connected in series between the fixed contact and the second wiring terminal on a detection line, and a lithium battery pack for supplying power to the display lamp on the detection line is also arranged on the bottom plate; in the scheme, the line detection component is connected between the fixed contact and the second wiring terminal in series and used for detecting the internal line of the backup protector, the display lamp is lightened when a passage is formed, and if the line fails, the lamp is not lightened.
Further, the tail end of the standby circuit connected in parallel on the stationary contact is connected with an operating linkage base arranged in the shell, and a manual control handle for controlling the connecting rod on the operating linkage base to rotate is arranged on the cover plate of the shell.
(III) beneficial effects
Compared with the prior art, the invention provides the backup protector of the gapless surge protector, which has the following beneficial effects:
1. according to the invention, the standby contact is arranged on one side of the static contact and is controlled by the electromagnetic switch, when the power grid receives a surge but the movable contact does not work, the current detection module and the current transformer in the release assembly receive signals, the processor module controls the electromagnetic switch to switch on a circuit, then the standby contact works, the end part of the standby contact is close to the static contact, a passage of an internal circuit of the standby protector can be formed at the moment, the safety of the circuit can be ensured at the first time, the surge can be discharged, the damage of the surge to the circuit can be reduced by arranging the electromagnetic coil, and the manual operation mechanism can be used for manually controlling, switching on the circuit and controlling the middle end of the circuit if necessary.
2. According to the invention, the circuit detection assembly is arranged between the stationary contact and the second wiring terminal and used for the safety detection of the internal circuit of the backup protector, the mode is manual operation, a worker can operate at regular time, a manual operation switch on the circuit detection assembly is closed during operation, the circuit is connected, the display lamp is on to indicate that the circuit has no fault, otherwise, the circuit has fault, the manual operation switch is in an open state at ordinary times, and the normal operation of the internal circuit is not influenced, so that the circuit detection is realized.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged view of the structure of FIG. 1A in accordance with the present invention;
FIG. 3 is a schematic diagram of a trip unit assembly of the present invention;
FIG. 4 is a schematic view of the outer structure of the housing according to the present invention;
fig. 5 is a schematic structural diagram of a circuit testing assembly according to the present invention.
In the figure: 1. a housing; 2. a first connection terminal; 3. a trip assembly; 301. a current transformer; 302. an actuator; 4. operating the linkage base; 5. a line row; 6. a second connection terminal; 7. a current detection module; 8. an electromagnetic coil; 9. arc-shield plate; 10. positioning a track; 11. a stationary contact; 12. an electromagnetic switch; 13. a small circuit board; 14. a connecting seat; 15. a standby contact; 16. a movable contact; 17. a manual control handle; 18. a line detection assembly; 1801. a bottom plate; 1802. a manual operation switch; 1803. a lithium battery pack; 1804. a display lamp; 19. an alarm; 20. an indicator; 21. and a processor module.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
As shown in fig. 1-5, the backup protector of the gapless surge protector provided by one embodiment of the invention comprises a shell 1, a release assembly 3 and an arc barrier 9, wherein a first wiring terminal 2 for connecting a power grid is fixedly connected to one side of the interior of the shell 1, a second wiring terminal 6 connected with a ground wire is fixedly connected to the other side of the interior of the shell 1, one end of the first wiring terminal 2 is connected with the release assembly 3 for receiving and detecting surge signals and circuit short-circuit signals, the arc barrier 9 is fixedly connected to one side of the interior of the shell 1, a fixed contact 11 and a movable contact 16 are correspondingly arranged on positioning rails 10 arranged on two sides of the arc barrier 9, a backup line and an electromagnetic coil 8 are connected in parallel to the fixed contact 11, a current detection module 7 for detecting circuit current is arranged on a line bank 5 connected to one side of the electromagnetic coil 8, and the tail end of the power transmission line of the line bank 5 is connected in series with the second wiring terminal 6; the standby circuit and the electromagnetic coil 8 are connected in parallel on the fixed contact 11, the resistance of the electromagnetic coil 8 under the condition of surge is very low, the leakage of the surge is not influenced, the effect of circuit protection can be achieved, the instant circuit damage of the surge is avoided, the current detection module 7 is arranged on the circuit bank 5 and used for detecting the current on the circuit, the situation that the current condition can not be found under the specific condition is avoided, the leakage of the surge can not be normally carried out, the equipment is prevented from being broken down, the stability of the use of the backup protector is ensured, the tripping device assembly 3 comprises the current transformer 301 used for receiving the surge signal of the first wiring terminal 2 and the circuit short-circuit signal, the current transformer 301 is connected with the actuator 302, the actuator 302 responds to the surge signal and the circuit short-circuit signal and drives the movable contact 16 to be close to the fixed contact 11, the current transformer 301 is used for detecting the surge signal when the surge condition occurs, the current transformer 301 collects information, then the actuator 302 drives the movable contact 16 to move to realize the closing processing of a circuit, the mode can realize the receiving and detecting of a surge, the signal can be detected in the moment of the occurrence of the surge, the circuit is timely controlled to be closed, the use effect is good, meanwhile, the electric signal can be sent out to process the surge signal, the processor module 21 for receiving the output signal of the current transformer 301 and the output signal of the current detection module 7 is arranged in the shell 1, the alarm 19 and the indicator 20 for displaying the state of the internal circuit of the shell 1 are arranged on the outer wall of the shell 1, the output end of the processor module 21 is respectively and electrically connected with the input end of the alarm 19 and the input end of the indicator 20, when the surge occurs, the current transformer 301 can receive the signal at the first time, the electric signal of the internal circuit of the backup protector is detected by the current detection module 7, when the electric signals are not equal, the processor module 21 controls the alarm 19 and the indicator 20 to work, the indication and alarm effects can be achieved, the situation that the device does not work normally and a worker cannot know at the first time is avoided, the prompting effect is achieved, a small circuit board 13 is arranged on one side of the shell 1, which is positioned at the fixed contact 11, of the electromagnetic switch 12 of the small circuit board 13, a standby contact 15 matched with the fixed contact 11 is arranged on the corresponding fixed contact 11, the standby contact 15 is fixedly connected to the shell 1 through a connecting seat 14, the output end of the processor module 21 is electrically connected with the input end of the electromagnetic switch 12, the standby contact 15 is matched with the fixed contact 11, when a surge occurs, and the movable contact 16 does not work normally, the standby contact 15 is close to the fixed contact 11 in time, a circuit is connected, the surge generated by lightning or a short circuit can be released in time, the effect of safety protection is achieved, the stability of the standby protector is improved, and the phenomenon that a circuit is not communicated when the surge occurs is avoided;
the circuit detection assembly 18 is arranged on the side wall of the shell 1 and used for detecting the internal circuit of the shell 1, the circuit detection assembly 18 is connected between the fixed contact 11 and the second wiring terminal 6 in series, and the circuit detection assembly 18 can detect the state of the circuit between the fixed contact 11 and the second wiring terminal 6, so that the normal use of the backup protector is prevented from being influenced by circuit damage.
As shown in fig. 1 and fig. 4, in some embodiments, the end of the standby circuit connected in parallel on the stationary contact 11 is connected with a manipulation linkage base 4 installed inside the casing 1, and a manual control handle 17 for controlling the rotation of the connecting rod on the manipulation linkage base 4 is installed on the cover plate of the casing 1, when the on-off control of the internal circuit of the backup protector is performed, the manual control handle 17 can be operated, so that the connecting rod on the manipulation linkage base 4 rotates to close the circuit, and the internal circuit is sequentially closed or interrupted.
As shown in fig. 1, 4 and 5, in some embodiments, the line detection assembly 18 includes a bottom plate 1801 fixedly connected to a side wall of the housing 1, a manually operated switch 1802 and a display lamp 1804 are installed on the bottom plate 1801, and when the manually operated switch 1802 and the display lamp 1804 are connected in series on a detection line between the stationary contact 11 and the second connection terminal 6, and when the circuit detection is required, the manually operated switch 1802 can be closed to conduct line connection, and at this time, the state of the display lamp 1804 can be observed to conduct line detection, the display lamp 1804 indicates that the line is normal when normal, and a worker can check at regular time to avoid line damage to affect normal operation.
As shown in fig. 5, in some embodiments, a lithium battery pack 1803 for detecting power supplied by the display lamp 1804 on the line is further installed on the bottom plate 1801, and by setting the lithium battery pack 1803, the lithium battery pack 1803 can be replaced in time for power supply processing of the display lamp 1804 in the line detection assembly 18, so that the circuit is ensured to be normal.
The current detection module 7 in the invention has a similar use mode and principle to the current transformer 301, has strong current resistance, and the model number of the processor module 21 is K62-40 RXXX, which are all known in the prior art.
The application steps and the principle of the invention are as follows: the first connecting terminal 2 is connected with a power grid, the second connecting terminal 6 is connected with a ground wire for discharging a surge, when lightning or wave generated under a short circuit state occurs, the first connecting terminal 2 transmits the surge to the release assembly 3, a current transformer 301 in the release assembly 3 detects and receives signals at first time, when the signals occur, an actuator 302 controls a movable contact 16 to be close to a fixed contact 11, an arc is formed between the movable contact 16 and the top of the fixed contact 11, a circuit path is further formed, at the moment, the fixed contact 11 transmits surge current to an electromagnetic coil 8, at the moment, the electromagnetic coil 8 receives an electric signal, instantly reduces the resistance of the electromagnetic coil, the circuit path is formed for discharging the surge, at the moment, the electromagnetic coil 8 can form a protection effect of the circuit, the circuit is prevented from being damaged instantly by the surge, then the surge is discharged to the second connecting terminal 6 through a circuit bank 5, the second wiring terminal 6 is connected with the ground wire to realize the discharging treatment of surge, the current detection module 7 is arranged on the circuit board 5, the detection of circuit current can be carried out, once the movable contact 16 does not work normally when a surge phenomenon occurs, the current transformer 301 receives surge signals, the processor module 21 carries out the collecting treatment of signals, the current information detected by the current detection module 7 and the current information of the current transformer 301 are unequal, the processor module 21 controls the electromagnetic switch 12 to be closed, the circuit between the standby contact 15 and the small circuit board 13 is switched on, the standby contact 15 works normally at this time and is closed against the movable contact 16, the circuit is closed, meanwhile, the processor module 21 controls the alarm 19 and the indicator 20 to work, the working state of the internal components of the shell 1 can be known by staff, if the communication of the circuit is not carried out, the manual control handle 17 on the cover plate of the shell 1 can be operated to enable the shaft lever on the operation linkage base 4 to rotate, the standby circuit is closed, so that the circuit can be normally operated, surge relief treatment is carried out, potential safety hazards are avoided, the circuit detection assembly 18 is arranged outside the shell 1, the manual operation switch 1802, the lithium battery pack 1803 and the display lamp 1804 on the circuit detection assembly 18 are connected in series between the fixed contact 11 and the second wiring terminal 6, when detection of the internal circuit of the shell 1 is needed, the manual operation switch 1802 can be manually closed, at the moment, the display lamp 1804 and the internal circuit of the shell 1 form a passage, the display lamp 1804 is lightened to indicate that the circuit is normal, otherwise, detection is needed, detection treatment of the internal circuit of the shell 1 is achieved, and the manual operation switch is in an open state under the normal state, and normal operation of the circuit is not influenced.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a backup protector of zero clearance surge protector, includes casing (1), release subassembly (3) and flash barrier (9), its characterized in that: the utility model discloses a high-voltage power transmission device, which is characterized in that a first wiring terminal (2) used for connecting a power grid is fixedly connected to one side of the inside of the shell (1), a second wiring terminal (6) connected with a ground wire is fixedly connected to the other side of the inside of the shell (1), one end of the first wiring terminal (2) is connected with a release assembly (3) used for receiving and detecting surge signals and circuit short-circuit signals, one side of the inside of the shell (1) positioned in the release assembly (3) is fixedly connected with an arc barrier (9), a fixed contact (11) and a movable contact (16) are correspondingly arranged on a positioning track (10) arranged on two sides of the arc barrier (9), a standby line and an electromagnetic coil (8) are connected in parallel on the fixed contact (11), a current detection module (7) used for detecting circuit currents is arranged on a line bank (5) connected with one side of the electromagnetic coil (8), the tail end of a power transmission line of the line bank (5) is connected with the second wiring terminal (6) in series, the release assembly (3) comprises a current transformer (301) used for receiving the surge signals and the first wiring terminal (2) and the circuit short-circuit signals, the current transformer (301) is connected with the movable contact (302) in response to the static contact (16), a processor module (21) for receiving output signals of a current transformer (301) and output signals of a current detection module (7) is arranged in the shell (1), an alarm (19) and an indicator (20) for displaying the internal circuit state of the shell (1) are arranged on the outer wall of the shell (1), the output end of the processor module (21) is electrically connected with the input end of the alarm (19) and the input end of the indicator (20) respectively, a small circuit board (13) is arranged on one side of an internal part of the shell (1), which is positioned at a fixed contact (11), a standby contact (15) which is matched with the fixed contact (11) is arranged on an electromagnetic switch (12) of the small circuit board (13), the standby contact (15) is fixedly connected on the shell (1) through a connecting seat (14), and the output end of the processor module (21) is electrically connected with the input end of the electromagnetic switch (12);
the circuit detection assembly (18) is arranged on the side wall of the shell (1) and used for detecting the internal circuit of the shell (1), and the circuit detection assembly (18) is connected in series between the fixed contact (11) and the second wiring terminal (6).
2. The backup protector for a gapless surge protector of claim 1 wherein: the tail end of the standby circuit connected in parallel on the stationary contact (11) is connected with an operation linkage base (4) arranged in the shell (1), and a manual control handle (17) for controlling the connecting rod on the operation linkage base (4) to rotate is arranged on a cover plate of the shell (1).
3. The backup protector for a gapless surge protector of claim 1 wherein: the circuit detection assembly (18) comprises a bottom plate (1801) fixedly connected to the side wall of the shell (1), a manual operation switch (1802) and a display lamp (1804) are arranged on the bottom plate (1801), and the manual operation switch (1802) and the display lamp (1804) are connected in series on a detection line between the fixed contact (11) and the second wiring terminal (6).
4. A backup protector for a gapless surge protector according to claim 3 wherein: and a lithium battery pack (1803) for supplying power to the display lamp (1804) on the detection line is also arranged on the bottom plate (1801).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111458579.2A CN114334537B (en) | 2021-12-02 | 2021-12-02 | Backup protector of gapless surge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111458579.2A CN114334537B (en) | 2021-12-02 | 2021-12-02 | Backup protector of gapless surge protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114334537A CN114334537A (en) | 2022-04-12 |
| CN114334537B true CN114334537B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111458579.2A Active CN114334537B (en) | 2021-12-02 | 2021-12-02 | Backup protector of gapless surge protector |
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| Country | Link |
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| CN (1) | CN114334537B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208315406U (en) * | 2018-05-11 | 2019-01-01 | 湖南中普技术股份有限公司 | The auxiliary contact and surge protector of surge protector |
| CN112071725A (en) * | 2020-09-29 | 2020-12-11 | 厦门大恒科技有限公司 | Dual-channel circuit breaker and overcurrent protection system |
| CN112908782A (en) * | 2021-03-18 | 2021-06-04 | 南京中科睿通智能科技有限公司 | Surge protector with backup protection device |
-
2021
- 2021-12-02 CN CN202111458579.2A patent/CN114334537B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208315406U (en) * | 2018-05-11 | 2019-01-01 | 湖南中普技术股份有限公司 | The auxiliary contact and surge protector of surge protector |
| CN112071725A (en) * | 2020-09-29 | 2020-12-11 | 厦门大恒科技有限公司 | Dual-channel circuit breaker and overcurrent protection system |
| CN112908782A (en) * | 2021-03-18 | 2021-06-04 | 南京中科睿通智能科技有限公司 | Surge protector with backup protection device |
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| Publication number | Publication date |
|---|---|
| CN114334537A (en) | 2022-04-12 |
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