CN218040789U

CN218040789U - Surge protector and backup protection device integration lightning protection device

Info

Publication number: CN218040789U
Application number: CN202222250851.4U
Authority: CN
Inventors: 李洋; 李松翰
Original assignee: Beijing Guangrong Lightning Protection Technology Co ltd
Current assignee: Beijing Guangrong Lightning Protection Technology Co ltd
Priority date: 2022-08-25
Filing date: 2022-08-25
Publication date: 2022-12-13
Anticipated expiration: 2032-08-25

Abstract

The utility model provides a surge protector and backup protection device integration lightning protection device, including the A looks of arranging side by side in proper order, B looks and C looks protection unit, A looks protection unit includes first backup protection ware and first surge protection device, B looks protection unit includes second backup protection ware and second surge protection device, C looks protection unit includes third backup protection device and third surge protection device, it is first, and a second, the input of third backup protection device is external respectively has A, B, C three-phase electricity, it is first, and a second, the output of third backup protection device concatenates first respectively, and a second, the one end of third surge protection device, it is first, and a second, the equal ground connection of the other end of third surge protection device, third surge protection device is provided with fourth surge protection device side by side, the external N looks terminal of one end of fourth surge protection device, the other end ground connection of fourth surge protection device. The utility model discloses the reserve protector and the surge protector of crisscross arrangement are rational in infrastructure, and the wiring is convenient.

Description

Surge protector and backup protection ware integration lightning protection device

Technical Field

The utility model relates to a lightning protection technical field, concretely relates to surge protector and backup protection ware integration lightning protection device.

Background

SPD is surge protector, is an electronic device for providing safety protection for various electronic equipment, instruments and meters, communication lines, when spike current or voltage is suddenly generated in an electric loop or a communication line because of external interference, the surge protector can conduct and shunt in a very short time, thereby avoiding the damage of surge to other equipment in the loop.

The SSD is an external disconnector (also called a backup protection device) connected in series at the front end of the surge protector, has strong breaking capacity and higher surge endurance, and has a short-circuit action current far lower than that of the conventional backup protection device under the condition of considering both the breaking capacity and the surge endurance. The low short-circuit current can be effectively cut off, and more precise short-circuit protection is provided for the surge protection device.

In the current power supply system, in order to further improve the lightning protection effect and good safety and stability of the circuit, the SPD is generally required to be arranged in the circuit, and a special backup protection device is required to be arranged for normal and stable operation of the SPD, namely the SSD.

SUMMERY OF THE UTILITY MODEL

In view of this, the to-be-solved problem of the utility model is to provide a surge protector and backup protection ware integration lightning protection device.

In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a surge protector and back-up protection device integration lightning protection device, includes A looks protection unit, B looks protection unit and the C looks protection unit of arranging side by side in proper order, A looks protection unit includes first back-up protection device and first surge protector, B looks protection unit includes second back-up protection device and second surge protector, C looks protection unit includes third back-up protection device and third surge protector, first back-up protection device the second back-up protection device and the input of third back-up protection device is external A, B, C three-phase electricity respectively, first back-up protection device the second back-up protection device the output of third back-up protection device concatenates respectively first surge protector the second surge protector the one end of third surge protector, first surge protector the second surge protector the other end of third surge protector all grounds, the third is provided with the fourth surge protector side by side, the external N looks terminal of fourth surge protector, the other end ground connection of fourth surge protector.

In the present invention, preferably, the fourth surge protector and the fourth backup protector are connected in series between the N-phase terminals.

The utility model discloses in, preferably, first backup protection ware the second backup protection ware with third backup protection ware's structure is the same, all includes SSD module and SSD circuit board, the SSD module includes module body, module apron and leaded light post, the SSD module has the casing through the grafting connection, the SSD circuit board is pegged graft on the casing, the module apron with module body joint, place in the leaded light post the module is originally internal, the leaded light post is worn to establish the casing, just the bottom of leaded light post with the LED luminescent plate of SSD circuit board contacts.

The utility model discloses in, preferably, first surge protector second surge protector third surge protector's structure is the same, all includes SPD module and micro-gap switch, the SPD module includes module body, module apron, lightning protection chip and bullet post, the module body with the casing is pegged graft, micro-gap switch peg graft in on the casing, the module apron with module body joint, the lightning protection chip and place in the bullet post is all in the module is originally internal, the bullet post is worn to establish the casing, just the bottom of bullet post with micro-gap switch's shell fragment tip is inconsistent.

The utility model discloses in, preferably, this internal gas discharge tube that is equipped with of module, the inside and outside both sides of gas discharge tube are external to have the conducting strip through the electrode disc, the conducting strip is pegged graft on the metal frame, place in the metal frame in the casing.

The utility model discloses in, preferably, the lightning protection chip has set firmly the dropout leg, the module body embeds there is the baffle, bullet post middle part both sides have set firmly the fixture block, bullet post cover is equipped with the dropout metalwork, the dropout metalwork passes through solder joint and dropout leg fixed connection, and bullet post cover is equipped with the spring, and the one end of spring with play post fixed connection, the other end of spring is inconsistent with the inner edge of module body.

The utility model discloses in, preferably, set firmly two spacing posts on the module apron.

The utility model discloses in, preferably, the locating hole has been seted up on housing face, spacing post is riveted through the perforation rivet so that first backup protection ware, first surge protector the second backup protection ware the second surge protector third backup protection ware third surge protector with fourth surge protector fixed connection is in the same place.

The utility model discloses in, preferably, the preformed hole has still been seted up to housing surface, and the preformed hole sets up in the side of locating hole.

The utility model discloses in, preferably, the casing includes casing upper cover and casing base, the casing upper cover through connect buckle with casing base fixed connection.

The utility model has the advantages and positive effects that:

(1) A looks protective unit, B looks protective unit and C looks protective unit all include a backup protection ware and a surge protector, crisscross integrated structure of arranging, the backup protection ware and the surge protector of every looks unit are internal connection, and when a certain looks backup protection ware or surge protector break down or need change, only dismantle the spare part of the protective unit who corresponds with it and can accomplish, the dismouting is nimble convenient, backup protection ware and surge protector are in groups alone in the past avoided, need whole dismouting reorganization rewiring's problem, has the practicality, still can ensure functional linkage under the independent condition of structure, convenient wiring.

(2) Because play the bottom of post with micro-gap switch's shell fragment tip is inconsistent, when micro-gap switch moved, micro-gap switch's shell fragment bounce 10mm will play the post jack-up that makes progress, because play the post both sides and set firmly the fixture block, and the module body embeds there is the baffle, play the post rebound to fixture block upper portion edge and the mutual conflict of baffle bottom edge, that is to say the top of bullet post is outstanding for the casing, so that in time remind operating personnel to maintain this surge protector, and simultaneously, send the telesignalling through SSD circuit board and signal end and instruct, the remote suggestion of being convenient for.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of an embodiment of an integrated lightning protection device of a surge protector and a backup protector according to the present invention;

fig. 2 is a schematic diagram of a second embodiment of the integrated lightning protection device of the surge protector and the backup protector of the present invention;

fig. 3 is a schematic view of the overall structure of the integrated lightning protection device for surge protection device and backup protector of the present invention;

fig. 4 is a schematic cross-sectional structure diagram of a first backup of the integrated lightning protection device of the surge protector and backup protector of the present invention;

fig. 5 is a schematic structural diagram of an SPD module of the surge protector and backup protector integrated lightning protection device of the present invention;

fig. 6 is a schematic structural diagram of an SSD module of the surge protector and backup protector integrated lightning protection device of the present invention;

fig. 7 is a schematic structural diagram of a housing of the surge protector and backup protector integrated lightning protection device of the present invention.

In the figure: 1. a first backup protector; 2. a first surge protector; 3. a second backup protector; 4. a second surge protector; 5. a third backup protector; 6. a third surge protector; 7-1, a fourth surge protector; 7-2, a fourth backup protector; 8. an SSD module; 9. an SSD circuit board; 10. a module body; 11. a module cover plate; 12. a light guide pillar; 13. a housing; 14. an SPD module; 15. a microswitch; 16. a lightning protection chip; 17. a bullet column; 18. a gas discharge tube; 19. an electrode disk; 20. a conductive sheet; 21. a metal frame; 22. tripping the welding leg; 23. a baffle plate; 24. a clamping block; 25. tripping the metal piece; 26. a limiting column; 27. a spring; 28. reserving a hole; 29. positioning holes; 30. a housing upper cover; 31. a housing base; 32. connecting a buckle; 33. and (6) perforating.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for purposes of illustration only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The first embodiment is as follows:

as shown in fig. 1 and 3, the utility model provides a surge protector and back-up protection device integration lightning protection device, including the A looks protection unit that arranges side by side in proper order, B looks protection unit and C looks protection unit, A looks protection unit includes first back-up protection device 1 and first surge protector 2, B looks protection unit includes second back-up protection device 3 and second surge protector 4, C looks protection unit includes third back-up protection device 5 and third surge protector 6, first back-up protection device 1, the input of second back-up protection device 3 and third back-up protection device 5 is external to have A respectively, B, C three-phase electricity, first back-up protection device 1, second back-up protection device 3, the output of third back-up protection device 5 concatenates first surge protector 2 respectively, second surge protector 4, the one end of third surge protector 6, first surge protector 2, second surge protector 4, the other end of third surge protector 6 is all grounded, third surge protector 6 is provided with fourth surge protector 7-1 side by side, the one end N terminal of fourth surge protector 7-1, the other end of fourth surge protector 7-1 grounded. A looks protective unit, B looks protective unit and C looks protective unit all include a backup protector and a surge protector, crisscross the arranging, the backup protector and the surge protector of every looks unit are internal connection, and when a certain looks backup protector or surge protector break down or need change, only dismantle the spare part of the protective unit that corresponds with it and can accomplish, dismouting is nimble convenient, backup protector and surge protector are alone in groups in the past avoided, need whole dismouting reorganization to rewire the problem of wiring, and the practicality has. In fig. 3, the unit beside the fourth surge protector 7-1 is a standby module, which further improves the flexibility of the device.

Example two:

as shown in fig. 2, in the present embodiment, a fourth backup protector 7-2 is connected in series between the fourth surge protector 7-1 and the N-phase terminal.

As shown in fig. 6, in this embodiment, further, the first backup protector 1, the second backup protector 3, and the third backup protector 5 have the same structure and all include the SSD module 8 and the SSD circuit board 9, the SSD module 8 includes the module body 10, the module cover plate 11, and the light guide pillar 12, the SSD module 8 is connected to the housing 13 through the plug, the SSD circuit board 9 is plugged onto the housing 13, the module cover plate 11 is connected to the module body 10, the light guide pillar 12 is embedded in the module body 10, the light guide pillar 12 penetrates through the housing 13, and the bottom of the light guide pillar 12 contacts with the light emitting sheet of the SSD circuit board 9. The first backup protector 1 is connected with the first surge protector 2 in series, so that the first surge protector 2 is protected, the condition that the impact current normally passes when overvoltage is generated by lightning stroke is met, and disconnection protection is required within 2 seconds when short circuit occurs in the SPD. The wire connected with the surge protector is short and straight, and the total length of the lead is not more than 0.5m. A surge protector installation line is provided with an over-standby protector (an over-current protector), and the over-current protector has the following capabilities: 1. breaking the expected short-circuit current of the SPD mounting circuit; this ensures that the trip 2 can be tripped once the line is short-circuited, withstanding the surge current through the SPD without breaking; lightning current can pass smoothly, and the requirement of lightning resistance is met; 3. and the power frequency current which cannot be disconnected due to built-in thermal protection of the disjunction SPD is not tripped if the disjunction SPD is broken down, the grounding is equivalent to a short circuit, and the small short-circuit current is disconnected.

As shown in fig. 5, in this embodiment, further, the first surge protector 2, the second surge protector 4, and the third surge protector 6 have the same structure, and all include an SPD module 14 and a micro switch 15, the SPD module 14 includes a module body 10, a module cover plate 11, a lightning protection chip 16, and an elastic column 17, the module body 10 is inserted into the housing 13, the micro switch 15 is inserted into the housing 13, the module cover plate 11 is connected into the module body 10, the lightning protection chip 16 and the elastic column 17 are both disposed in the module body 10, the elastic column 17 penetrates through the housing 13, and the bottom of the elastic column 17 abuts against the elastic sheet end of the micro switch 15. The lightning current is discharged for many times or is too large to bear, the lightning current is separated, the lightning current enters through the high-temperature pin of the surge protector and is grounded through the busbar through the low-temperature pin, and the lightning protection chip 16 is used for lightning protection tripping.

As shown in fig. 6, in the present embodiment, a gas discharge tube 18 is further disposed in the module body 10, conductive sheets 20 are externally connected to the inner and outer sides of the gas discharge tube 18 through an electrode pad 19, the conductive sheets 20 are inserted into a metal frame 21, and the metal frame 21 is disposed in the housing 13. Explaining by taking the first backup protector 1 and the first surge protector 2 as an example, when a lightning strike occurs, because of the blocking of the resistor, the lightning current is selected to pass through the gas discharge tube, so that the lightning current normally flows to the surge protector through discharging, the surge protector plays a role, and when the surge protector is damaged and short-circuited, because the gas discharge tube is an insulator, the current is selected to pass through the resistor and the fuse, and the fuse is disconnected, so that the surge protector is protected. The light guide post 12 of normal during operation shows green light, and when the fuse disconnected, light guide post 12 lamp goes out for the suggestion fuse has been disconnected, is convenient for inform operating personnel in time to change the fuse. The second backup protector 3 is connected with the second surge protector 4 in series, the third backup protector 5 is connected with the third surge protector 6 in series, the working principle is similar to the process, and further description is omitted here.

In this embodiment, further, the lightning protection chip 16 is fixedly provided with a tripping solder leg 22, a baffle 23 is arranged in the module body 10, two sides of the middle of the elastic column 17 are fixedly provided with a clamping block 24, the elastic column 17 is sleeved with a tripping metal piece 25, the tripping metal piece 25 is fixedly connected with the tripping solder leg 22 through a welding spot, the elastic column 17 is sleeved with a spring 27, one end of the spring 27 is fixedly connected with the elastic column 17, and the other end of the spring 27 is abutted against the inner edge of the module body 10. The spring 27 is in a compressed state in an initial state, because the tripping metal piece 25 and the tripping leg 22 are welded together through welding spots, the tripping leg 22 serves as a low-temperature leg of the lightning protection chip 16, when the lightning protection chip 16 is in overload operation, the welding spot soldering tin is melted due to the rise of the temperature around the chip, the tripping metal piece 25 is separated from the tripping leg 22, the micro switch 15 is triggered to act, the elastic piece of the micro switch 15 is bounced by 10mm to jack the elastic column 17 upwards, because the spring 27 is subjected to the acting force of restoring to the original deformation, the elongation of the spring is lengthened, the elastic column 17 is driven to move upwards, because the clamping blocks 24 are fixedly arranged on two sides of the elastic column 17, the module body 10 is internally provided with the baffle 23, the elastic column 17 moves upwards to enable the upper edge of the clamping blocks 24 to be mutually abutted against the bottom edge of the baffle 23, namely, the top of the elastic column 17 is protruded relative to the shell, so that an operator is timely reminded to maintain the surge protector, and meanwhile, the SSD circuit board 9 and the signal end send a telecommand indication is convenient for remote prompt.

In this embodiment, two limiting posts 26 are fixed on the module cover plate 11. As shown in fig. 6, the two limiting posts 26 are arranged to position the elastic post 17 in the left-right direction when moving upwards, so that the problem of offset caused by left-right shaking is avoided.

In this embodiment, furthermore, a positioning hole 29 is opened on the surface of the housing 13, and a rivet is riveted on the limiting column 26 through a through hole 33 to fixedly connect the first backup protector 1, the first surge protector 2, the second backup protector 3, the second surge protector 4, the third backup protector 5, the third surge protector 6 and the fourth surge protector 7-1 together. The positioning hole 29 is used for quickly positioning the light guide column 12 or the elastic column 17; riveting by rivets is convenient for improving the overall stability of the modules after the modules are assembled.

As shown in fig. 7, in the present embodiment, a preformed hole 28 is further formed on the surface of the housing 13, the preformed hole 28 is disposed beside the positioning hole 29, and the preformed hole 28 is used for reserving a space for passing a wire connection.

In the present embodiment, further, the housing 13 includes a housing upper cover 30 and a housing base 31, and the housing upper cover 30 is fixedly connected to the housing base 31 by a connecting buckle 32. The structure design is easy to assemble; in addition, a straight groove is formed in each module of the upper cover 30 of the shell and corresponds to the position of the conducting strip 20, so that the positioning speed during module installation is further increased, and convenience is brought to assembly.

The utility model discloses compare between split type overcurrent protector of prior art and surge protector wiring in disorder and connect the mistake easily, the utility model discloses the backup protection ware and the surge protector structural layout who staggers to arrange are reasonable, and the wiring is convenient to be difficult for connecing the mistake, and the circuit is clean and tidy surveyability more, still can guarantee the contact between the function under backup protection ware and the independent condition of surge protector structure, and the same nevertheless function of inside module body 10 structure is different, the unified die sinking of being convenient for, has saved manufacturing cost indirectly, and the wiring is convenient after the equipment, and easily dismantles, the equipment is nimble.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All the equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.

Claims

1. An integrated lightning protection device of a surge protector and a backup protector is characterized by comprising an A-phase protection unit, a B-phase protection unit and a C-phase protection unit which are sequentially arranged in parallel, the A-phase protection unit comprises a first backup protector (1) and a first surge protector (2), the B-phase protection unit comprises a second backup protector (3) and a second surge protector (4), the C-phase protection unit comprises a third backup protector (5) and a third surge protector (6), the input ends of the first backup protector (1), the second backup protector (3) and the third backup protector (5) are respectively externally connected with three-phase power A, B and C, the output ends of the first backup protector (1), the second backup protector (3) and the third backup protector (5) are respectively connected with one end of the first surge protector (2), one end of the second surge protector (4) and one end of the third surge protector (6) in series, the other ends of the first surge protector (2), the second surge protector (4) and the third surge protector (6) are all grounded, the third surge protector (6) is provided with a fourth surge protector (7-1) in parallel, one end of the fourth surge protector (7-1) is externally connected with an N-phase terminal, and the other end of the fourth surge protector (7-1) is grounded.

2. A surge protector and backup protector integrated lightning protection device according to claim 1, characterized in that a fourth backup protector (7-2) is connected in series between the fourth surge protector (7-1) and the N-phase terminal.

3. The integrated lightning protection device for the surge protector and the backup protector according to claim 1, wherein the first backup protector (1), the second backup protector (3) and the third backup protector (5) have the same structure and comprise an SSD module (8) and an SSD circuit board (9), the SSD module (8) comprises a module body (10), a module cover plate (11) and a light guide column (12), the SSD module (8) is connected with a shell (13) through a plug-in connection, the SSD circuit board (9) is plugged in the shell (13), the module cover plate (11) is connected with the module body (10) in a clamping manner, the light guide column (12) is arranged in the module body (10), the light guide column (12) penetrates through the shell (13), and the bottom of the light guide column (12) is in contact with an LED light-emitting sheet of the SSD circuit board (9).

4. A surge protector and backup protector integrated lightning protection device according to claim 3, characterized in that, the first surge protector (2), the second surge protector (4) and the third surge protector (6) are identical in structure and each comprise an SPD module (14) and a microswitch (15), the SPD module (14) comprises a module body (10), a module cover plate (11), a lightning protection chip (16) and an elastic column (17), the module body (10) is inserted into the shell (13), the microswitch (15) is inserted into the shell (13), the module cover plate (11) is clamped with the module body (10), the lightning protection chip (16) and the elastic column (17) are all arranged in the module body (10), the elastic column (17) penetrates through the shell (13), and the bottom of the elastic column (17) is abutted to the end of the elastic sheet of the microswitch (15).

5. A surge protector and back-up protector integrated lightning protection device according to claim 3, wherein a gas discharge tube (18) is arranged in the module body (10), conducting strips (20) are externally connected to the inner side and the outer side of the gas discharge tube (18) through electrode discs (19), the conducting strips (20) are inserted into a metal frame (21), and the metal frame (21) is arranged in the shell (13).

6. A surge protector and back-up protector integration lightning protection device of claim 4, characterized in that, lightning protection chip (16) has set firmly dropout leg (22), module body (10) embeds there is baffle (23), bullet post (17) middle part both sides have set firmly fixture block (24), bullet post (17) fixedly connected with dropout metalwork (25), dropout metalwork (25) through the solder joint with dropout leg (22) fixed connection, bullet post (17) cover is equipped with spring (27), and the one end of spring (27) with bullet post (17) fixed connection, the other end of spring (27) with the inner edge of module body (10) is inconsistent.

7. A surge protector and backup protector integrated lightning protection device according to claim 3, characterized in that two limiting columns (26) are fixed on the module cover plate (11).

8. A surge protector and backup protector integrated lightning protection device according to claim 7, characterized in that the housing (13) is provided with a positioning hole (29) on the surface, and the limiting column (26) is riveted with a rivet through a through hole (33) to fixedly connect the first backup protector (1), the first surge protector (2), the second backup protector (3), the second surge protector (4), the third backup protector (5), the third surge protector (6) and the fourth surge protector (7-1).

9. A surge protector and backup protector integrated lightning protection device according to claim 3, characterized in that the surface of the housing (13) is further provided with a reserved hole (28).

10. A surge protector and backup protector integrated lightning protection device according to claim 3, characterized in that the housing (13) comprises a housing upper cover (30) and a housing base (31), the housing upper cover (30) is fixedly connected with the housing base (31) through a connecting buckle (32).