CN211859599U - Surge protector - Google Patents
Surge protector Download PDFInfo
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- CN211859599U CN211859599U CN202020274761.7U CN202020274761U CN211859599U CN 211859599 U CN211859599 U CN 211859599U CN 202020274761 U CN202020274761 U CN 202020274761U CN 211859599 U CN211859599 U CN 211859599U
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- tripping
- protection element
- overvoltage protection
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- elastic sheet
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Abstract
The surge protector comprises a box body and is characterized in that a first overvoltage protection element, a second overvoltage protection element, a tripping elastic sheet and a slidable tripping sliding block assembly are arranged in the box body, the tripping elastic sheet is connected with the first overvoltage protection element and the second overvoltage protection element in series, one end of the tripping elastic sheet is welded with the first overvoltage protection element at a high temperature, the other end of the tripping elastic sheet is welded with the second overvoltage protection element at a low temperature, the tripping sliding block assembly is pressed and positioned, the tripping elastic sheet is fused with the second overvoltage protection element at a low temperature due to overvoltage temperature rise, the tripping sliding block assembly is loosened to position the tripping sliding block assembly in a pressing mode, and the second. The utility model provides a can satisfy higher service voltage, be applicable to 690V and 1500V's electric power system application, improve 690V and 1500V's electric power system's surge protection reliability for high voltage electric power system safe and reliable more can effectively reduce surge protector's among the high voltage electric power system volume, saves installation and usage space, and surge protector's installation is more convenient, and the practicality is higher.
Description
Technical Field
The utility model relates to a surge protector belongs to electron electrical equipment's protection device.
Background
With the development of industries such as electric power and new energy, the application voltage range of the power system is wider and wider, and the power system with the voltage range higher than 690V to 1500V is more and more common in application. Surge protection is also required for this type of power system to ensure the safety and reliability of the power system. At present, low-voltage surge protectors in series or high-voltage arresters are generally adopted for 690V to 1500V power systems. When the low-voltage surge protectors are connected in series, the surge protectors are large in size and inconvenient to install and use, and meanwhile, a plurality of potential safety hazards exist in the aspects of electrical clearance, creepage distance and the like of the low-voltage surge protectors designed for a low-voltage system. When the high-voltage arrester is adopted, on one hand, products below the suitable 2000V voltage level do not exist, on the other hand, the high-voltage arrester is not protected by tripping, and is large in size and inconvenient to install and use.
SUMMERY OF THE UTILITY MODEL
The utility model provides a surge protector, overvoltage protection component one and overvoltage protection component two are established ties through the dropout shell fragment, can satisfy higher service voltage, it uses to be applicable to 690V to 1500V's electric power system, improve 690V to 1500V's electric power system's surge protection reliability, make high voltage electric power system safe and reliable more, surge protector's volume in can effectively reducing high voltage electric power system, sparingly install and usage space, surge protector's installation is more convenient, and the practicality is higher.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the surge protector comprises a box body and is characterized in that a first overvoltage protection element, a second overvoltage protection element, a tripping elastic sheet and a slidable tripping sliding block assembly are arranged in the box body, the tripping elastic sheet is connected with the first overvoltage protection element and the second overvoltage protection element in series, one end of the tripping elastic sheet is welded with the first overvoltage protection element at a high temperature, the other end of the tripping elastic sheet is welded with the second overvoltage protection element at a low temperature, the tripping sliding block assembly is pressed and positioned, the tripping elastic sheet is fused with the second overvoltage protection element at a low temperature due to overvoltage temperature rise, the tripping sliding block assembly is loosened to position the tripping sliding block assembly in a pressing mode, and the second.
Preferably, the first overvoltage protection element is provided with two electrodes, one electrode is connected with the tripping elastic sheet, the other electrode is connected with the external wiring port in the box body, the second overvoltage protection element is also provided with two electrodes, one electrode is connected with the tripping elastic sheet, and the other electrode is connected with the other external wiring port in the box body.
Preferably, the tripping slider assembly comprises a tripping slider and a spring capable of pushing the tripping slider to slide, the middle section of the tripping elastic sheet compresses the tripping slider and enables the spring to be in a compressed state, one end of the tripping elastic sheet fuses with the second overvoltage protection element to loosen the compression on the tripping slider, and the spring pushes the tripping slider to slide to separate the second overvoltage protection element from the tripping elastic sheet.
Preferably, the box body is also internally provided with a positioning block for positioning the first overvoltage protection element and the second overvoltage protection element in the box body, the tripping slide block and the spring are both arranged on the positioning block, one end of the spring is connected with the positioning block, the other end of the spring is connected with the tripping slide block, and the tripping slide block is pushed to slide on the positioning block after one end of the tripping elastic sheet and the second overvoltage protection element are fused.
Preferably, the positioning block is horizontally arranged and arranged between the first overvoltage protection element and the second overvoltage protection element, the positioning block is provided with a guide rail which is in guide fit with the tripping slide block, and the upper end of the second overvoltage protection element is higher than the positioning block to limit the sliding of the tripping slide block on the guide rail.
Preferably, the tripping elastic sheet penetrates through the tripping sliding block, and the position of the high-temperature welded end part of the tripping elastic sheet and the first overvoltage protection element is higher than the position of the low-temperature welded end part of the tripping elastic sheet and the second overvoltage protection element.
Preferably, a microswitch used for sending an overvoltage tripping protection signal to external equipment is further arranged in the box body, and the tripping slider component compresses a signal elastic sheet of the microswitch and releases the compression of the signal elastic sheet of the microswitch along with the sliding of the tripping slider component.
Preferably, the box body is provided with a tripping indicating window, the tripping slider component is pasted with an un-tripping green mark and a tripped red mark which correspond to the tripping monitoring window, the tripping indicating window is aligned with the un-tripping green mark when the tripping slider component is pressed and positioned by the tripping elastic sheet, and the tripping indicating window is aligned with the tripped red mark after the tripping slider component slides.
The utility model has the advantages that:
1. the utility model discloses well overvoltage protection component one and overvoltage protection component two establish ties through the dropout shell fragment, can satisfy higher service voltage, are applicable to 690V and 1500V's electric power system and use, improve 690V to 1500V's electric power system's surge protection reliability for high voltage electric power system is safe and reliable more.
2. The surge protection device which is connected in series by the overvoltage protection element can adapt to high voltage, the volume of the surge protection device in a high-voltage power system can be effectively reduced, the installation and use space is saved, the installation of the surge protection device is more convenient, and the practicability is higher.
3. The sliding direction and the sliding displacement of a tripping slider in the tripping slider component are effectively limited, the reliability and the safety of tripping and arc extinguishing can be effectively improved, the closing state of a microswitch and the identification color in a tripping indicating window are changed while tripping is performed, and monitoring personnel can timely master the running state of the surge protector.
Drawings
Fig. 1 is a schematic structural view of a surge protector in a normal state according to an embodiment.
Fig. 2 is a schematic structural diagram of the surge protector in a tripping state.
Detailed Description
The following describes embodiments of the present invention in detail with reference to fig. 1 to 2.
A surge protector comprises a box body 1, and is characterized in that a first overvoltage protection element 2, a second overvoltage protection element 3, a tripping elastic sheet 4 and a slidable tripping sliding block assembly 5 are arranged in the box body 1, the first overvoltage protection element 2 and the second overvoltage protection element 3 are connected in series, one end of the tripping elastic sheet 4 is welded with the first overvoltage protection element 2 at high temperature, the other end of the tripping elastic sheet is welded with the second overvoltage protection element 3 at low temperature, the tripping sliding block assembly 5 is pressed and positioned, the tripping elastic sheet 4 is fused with the second overvoltage protection element 3 at low temperature due to overvoltage temperature rise, the pressing and positioning of the tripping sliding block assembly 5 is released, and the second overvoltage protection element 3 is separated from the tripping elastic sheet 4 by the sliding of.
The first overvoltage protection element 2 and the second overvoltage protection element 3 in the surge protection device are connected in series through the tripping elastic sheet 4, so that higher service voltage can be met, the surge protection device is suitable for application of a 690V-1500V power system, the surge protection reliability of the 690V-1500V power system is improved, and the high-voltage power system is safer and more reliable. And overvoltage protection elements are connected in series to form the surge protector adaptable to high voltage, so that the volume of the surge protector in a high-voltage power system can be effectively reduced, the installation and use space is saved, the surge protector is more convenient to install, and the practicability is higher.
The first overvoltage protection element 2 is provided with two electrodes, one electrode is connected with the tripping elastic sheet 4, the other electrode is connected with an external wiring port in the box body 1, the second overvoltage protection element 3 is also provided with two electrodes, one electrode is connected with the tripping elastic sheet 4, and the other electrode is connected with the other external wiring port in the box body 1. The overvoltage protection element I2 and the overvoltage protection element II are connected in series through the tripping elastic sheet 4, one electrode of the overvoltage protection element I2 is welded with the tripping elastic sheet 4 at high temperature, the other electrode of the overvoltage protection element I2 is connected with the external wiring port in the box body 1, one electrode of the overvoltage protection element II 2 is welded with the tripping elastic sheet 4 at low temperature, the other electrode of the overvoltage protection element II 2 is connected with the other external wiring port in the box body, and the surge protection device is connected to an electric power system through the two external wiring ports to form surge protection on the electric power system.
The tripping slide block assembly 5 comprises a tripping slide block 51 and a spring 52 capable of pushing the tripping slide block 51 to slide, the middle section of the tripping elastic sheet 4 compresses the tripping slide block 51, the spring 52 is in a compressed state, one end of the tripping elastic sheet 4 fuses with the second overvoltage protection element 3 to loosen the compression on the tripping slide block 51, and the spring 52 pushes the tripping slide block 51 to slide to separate the second overvoltage protection element 3 from the tripping elastic sheet 4. After the two ends of the tripping elastic sheet 4 are respectively welded with the first overvoltage protection element 2 and the second overvoltage protection element 3, the tripping slide block 51 is pressed tightly, the spring 52 is compressed, the tripping slide block 51 is pressed and positioned and cannot slide, when the low-temperature welding of the tripping elastic sheet 4 and the second overvoltage protection element 2 is fused due to the temperature rise of overvoltage, the tripping elastic sheet 4 releases the pressing and positioning of the tripping slide block 51, the tripping slide block 51 can slide under the action of the elastic restoring force of the spring 52 to separate the second overvoltage protection element 3 from the tripping elastic sheet 4, the two are completely arc-extinguished, and the tripping safety is ensured.
The overvoltage protection device comprises a box body 1, a positioning block 11 and a tripping elastic sheet 4, wherein the positioning block 11 is arranged in the box body 1 and used for positioning a first overvoltage protection element 2 and a second overvoltage protection element 3 in the box body 1, the tripping sliding block 51 and a spring 52 are arranged on the positioning block 11, one end of the spring 52 is connected with the positioning block 11, the other end of the spring 52 is connected with the tripping sliding block 51, and the tripping sliding block 51 is pushed to slide on the positioning block 11 after one end of the tripping elastic sheet 4 and the second overvoltage protection. The positioning block 11 not only has the function of positioning the first overvoltage protection element 2 and the second overvoltage protection element 3 in the box body 1, but also has the function of sliding fit with the tripping slide block 51, and positions the sliding position and the sliding direction of the tripping slide block 51.
The positioning block 11 is horizontally arranged and installed between the first overvoltage protection element 2 and the second overvoltage protection element 3, a guide rail which is in guide fit with the tripping slide block 51 is arranged on the positioning block 11, and the upper end of the second overvoltage protection element 3 is higher than the positioning block 11 to limit the sliding of the tripping slide block 51 on the guide rail 12. The sliding direction of the tripping slide block 51 is positioned by arranging the guide rail on the positioning block 11, the sliding deviation of the tripping slide block 51 is avoided, the sliding displacement of the tripping slide block 51 is limited by the part, higher than the positioning block 11, of the upper end of the overvoltage protection element II 3, the tripping slide block 51 is prevented from sliding over the limit, the motion reliability and effectiveness of the tripping slide block assembly 5 are improved, the reliability and safety of tripping and arc extinguishing can be effectively improved, the surge protection device is guaranteed to be timely disconnected under the overvoltage condition, and an electric power system is effectively protected.
The tripping elastic sheet 4 penetrates through the tripping sliding block 51, and the position of the high-temperature welded end of the tripping elastic sheet 4 and the first overvoltage protection element 2 is higher than the position of the low-temperature welded end of the tripping elastic sheet 4 and the second overvoltage protection element 3. The tripping elastic sheet 4 penetrates through the tripping slide block 51 to ensure that the tripping elastic sheet 4 can effectively compress and position the tripping slide block 51 in the normal state of no tripping, and when the overvoltage protection element two 3 and the tripping elastic sheet 4 are fused, the tripping elastic sheet 4 can immediately loosen the limit on the tripping slide block 51, so that the movement timeliness and effectiveness of the tripping slide block 51 in the tripping state are improved.
Wherein, the box body 1 is also provided with a microswitch 6 which is used for sending an overvoltage tripping protection signal to external equipment, the tripping slide block component 5 compresses the signal shrapnel of the microswitch 6, and the signal shrapnel of the microswitch 6 is compressed along with the sliding release of the tripping slide block component 5. When the signal shrapnel of the microswitch 6 is compressed, the microswitch is in an off state, and when the signal shrapnel is bounced off, the microswitch is in an on state, namely an overvoltage tripping protection signal is sent to external equipment to prompt that the surge protector is in a tripping off state.
The tripping device comprises a box body 1, a tripping slider component 5, a tripping indicating window 13, a tripping green mark and a tripping red mark, wherein the tripping indicating window 13 is arranged on the box body 1, the tripping green mark and the tripping red mark correspond to the tripping indicating window 13, the tripping indicating window 13 is aligned with the tripping green mark when the tripping slider component 5 is pressed and positioned by a tripping elastic sheet 4, and the tripping indicating window 13 is aligned with the tripping red mark after the tripping slider component 5 slides. The state of the surge protector can be mastered by observing the tripping indication window 13, and the monitoring personnel can be ensured to master the running state of the surge protector in time. The on-off state of the microswitch and the identification color in the tripping indicating window are changed while tripping is performed, and therefore monitoring personnel can timely master the running state of the surge protection device.
The technical solutions of the embodiments of the present invention are fully described above with reference to the accompanying drawings, and it should be noted that the described embodiments are only some embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Claims (8)
1. A surge protector comprises a box body (1), and is characterized in that a first overvoltage protection element (2), a second overvoltage protection element (3), a tripping elastic sheet (4) and a slidable tripping sliding block assembly (5) are arranged in the box body (1), one end of the tripping elastic sheet (4) is welded with the first overvoltage protection element (2) at a high temperature, the other end of the tripping elastic sheet is welded with the second overvoltage protection element (3) at a low temperature, the tripping sliding block assembly (5) is pressed and positioned, the tripping elastic sheet (4) and the second overvoltage protection element (3) are fused due to overvoltage temperature rise, the pressing and positioning of the tripping sliding block assembly (5) are released, and the tripping sliding block assembly (5) slides to separate the second overvoltage protection element (3) from the tripping elastic sheet (4).
2. A surge arrester as claimed in claim 1, wherein the first overvoltage protection element (2) has two poles, one pole being connected to the trip leaf (4) and the other pole being connected to an external connection port in the housing (1), and the second overvoltage protection element (3) also has two poles, one pole being connected to the trip leaf (4) and the other pole being connected to another external connection port in the housing (1).
3. A surge protector according to claim 1, wherein the trip slider assembly (5) comprises a trip slider (51) and a spring (52) for pushing the trip slider (51) to slide, the middle section of the trip resilient piece (4) presses the trip slider (51) and makes the spring (52) in a compressed state, one end of the trip resilient piece (4) fuses with the second overvoltage protection element (3), the pressing on the trip slider (51) is released, and the spring (52) pushes the trip slider (51) to slide to separate the second overvoltage protection element (3) from the trip resilient piece (4).
4. A surge protector according to claim 3, wherein the housing (1) further comprises a positioning block (11) for positioning the first overvoltage protection element (2) and the second overvoltage protection element (3) in the housing (1), the trip slider (51) and the spring (52) are both disposed on the positioning block (11), one end of the spring (52) is connected to the positioning block (11), the other end of the spring is connected to the trip slider (51), and the trip slider (51) is pushed to slide on the positioning block (11) after one end of the trip resilient piece (4) is fused with the second overvoltage protection element (3).
5. A surge protector according to claim 4, wherein the positioning block (11) is horizontally disposed and mounted between the first overvoltage protection element (2) and the second overvoltage protection element (3), the positioning block (11) is provided with a guide rail which is in guiding fit with the trip slider (51), and the upper end of the second overvoltage protection element (3) is higher than the positioning block (11) to limit the sliding of the trip slider (51) on the guide rail (12).
6. A surge protector according to claim 3, wherein the trip resilient member (4) extends through the trip slider (51), and the high temperature welded end of the trip resilient member (4) and the first overvoltage protection element (2) is higher than the low temperature welded end of the trip resilient member (4) and the second overvoltage protection element (3).
7. A surge protector according to claim 1, wherein the housing (1) further contains a microswitch (6) for signaling overvoltage trip protection to an external device, and the trip block assembly (5) presses a signal dome of the microswitch (6) and releases the pressing of the signal dome of the microswitch (6) in response to the sliding of the trip block assembly (5).
8. A surge protector according to claim 1, wherein the housing (1) has a trip indicating window (13), the trip slider assembly (5) has a green non-tripped symbol and a red tripped symbol corresponding to the trip indicating window (13), the trip indicating window (13) is aligned with the green non-tripped symbol when the trip slider assembly (5) is pressed and positioned by the trip leaf spring (4), and the trip indicating window (13) is aligned with the red tripped symbol after the trip slider assembly (5) slides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020274761.7U CN211859599U (en) | 2020-03-09 | 2020-03-09 | Surge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020274761.7U CN211859599U (en) | 2020-03-09 | 2020-03-09 | Surge protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211859599U true CN211859599U (en) | 2020-11-03 |
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ID=73239601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020274761.7U Active CN211859599U (en) | 2020-03-09 | 2020-03-09 | Surge protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211859599U (en) |
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2020
- 2020-03-09 CN CN202020274761.7U patent/CN211859599U/en active Active
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