CN217882845U

CN217882845U - Novel an integral type surge protector for high voltage wind power generation system

Info

Publication number: CN217882845U
Application number: CN202220863468.3U
Authority: CN
Inventors: 杨震; 宋秋平; 杨竹现
Original assignee: Anhui Golden Power Electronic Co ltd
Current assignee: Anhui Golden Power Electronic Co ltd
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-11-22
Anticipated expiration: 2032-04-15

Abstract

The utility model discloses a novel an integral type surge protector for high voltage wind power generation system, including surge protection device and surge cutting device, surge protection device is provided with upper cover, base, PCB board, piezo-resistor, wire clamp, pressure-sensitive collecting electrode and PE busbar, surge cutting device is provided with trip gear, instruction label, micro-gap switch and remote signalling indicating device, be provided with the lock pin between upper cover and the base, inside dropout slider, piezo-resistor, micro-gap switch and the instruction label of setting up of lock pin. The utility model discloses a draw forth the test point between piezo-resistor and the gas discharge tube, this test point is convenient for to product inspection and maintenance, and trip gear can throw off piezo-resistor and dropout electrode tie point completely, and the back of threading off, dropout electrode can not produce creepage or arc phenomenon with piezo-resistor, and the disconnection through a trip point realizes the disconnection of piezo-resistor and gas discharge tube and whole circuit, and sends alarm signal fast.

Description

Novel an integral type surge protector for high voltage wind power generation system

Technical Field

The utility model belongs to the technical field of aerogenerator lightning protection, in particular to novel an integral type surge protector for high voltage wind power generation system.

Background

The protection mode adopted by the existing lightning protection product with the series connection of the gas discharge tube and the piezoresistor is L-N, N-PE. Namely, the front 3P of a 4P product is a single piezoresistor module, and the last module is a gas discharge tube module. This results in the last gas discharge tube module being subjected to a 3 times pulse current and is highly susceptible to damage.

The wiring of the wind driven generator is only a live wire and a ground wire, no zero line exists, and the wind driven generator has unfixed rotating speed of fan blades, so that high-frequency harmonic waves can appear in each phase line, and filtering work needs to be carried out on each phase line.

Therefore, it is necessary to invent a new integrated surge protector for high voltage wind power generation system to solve the above problems.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a novel an integral type surge protector for high voltage wind power generation system to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a novel an integral type surge protector for high voltage wind power generation system, includes surge protection device and surge cutting device, its characterized in that: the surge protection device is provided with an upper cover, a base, a PCB (printed circuit board), a piezoresistor, a wire clamp, a piezoresistor bus electrode and a PE (polyethylene) bus bar, the surge cut-off device is provided with a tripping device, an indication label, a microswitch and a remote signaling indication device, an insertion core is arranged between the upper cover and the base, a tripping slider, the piezoresistor, the microswitch and the indication label are arranged in the insertion core, and the remote signaling indication device, the tripping electrode and the PE bus bar are arranged in the PCB;

one end of the piezoresistor is connected with a gas discharge tube, and a test point is led out from the connection position through the PCB; the microswitch is connected with a remote signaling terminal base through a remote signaling PCB and forms a remote signaling indicating device, the piezoresistor comprises two connecting pins at the bottom, and the two connecting pins are both pressure-sensitive electrodes;

one end of the gas discharge tube is connected with the piezoresistor through a piezobus electrode, the other end of the gas discharge tube is connected with the PE busbar, the piezoresistor and the PE busbar are connected through high-temperature soldering wires, a pin-arranging seat is arranged at the bottom of the piezoresistor, and the piezoresistor is connected with the PCB through the pin-arranging seat.

Furthermore, the tripping device comprises a tripping slider, a tripping spring and a tripping electrode, wherein one end of the tripping spring is connected with the insertion core, the other end of the tripping spring is connected with the tripping slider, one end of the tripping electrode is welded with one pressure-sensitive electrode at the bottom of the pressure-sensitive resistor, and the other end of the tripping electrode is connected with the wire clamp.

Furthermore, one end of the piezoresistor is connected with the tripping electrode by adopting low-temperature solder paste, and the other end of the piezoresistor is connected with the gas discharge tube by adopting a high-temperature soldering wire through the pressure-sensitive confluence electrode.

Furthermore, the remote signaling indicating device is composed of a tripping slider, a microswitch, a remote signaling PCB and a remote signaling terminal seat, wherein the microswitch is connected with the remote signaling PCB, the remote signaling terminal seat is connected with the PCB, and the remote signaling PCB is connected with the PCB through a wire.

Furthermore, a dovetail groove and a limiting column are arranged on the inserting core, a dovetail groove is arranged on the tripping sliding block, the dovetail groove on the tripping sliding block is matched with the dovetail groove on the inserting core, and the tripping sliding block moves in the dovetail groove direction in the inserting core.

Furthermore, the position where the tripping electrode is connected with the piezoresistor forms a tripping point, the tripping device moves under the action of a tripping spring, the piezoresistor is disconnected with the tripping electrode, the tripping slider bounces downwards, the tripping slider is separated from the microswitch, and the tripping electrode is connected with the PCB by adopting a PCB screw.

Furthermore, a buckle is arranged at the middle position of the base, the buckle and the base are clamped, and the base and the PCB are connected through screws.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a lead out the test point between piezo-resistor and the gas discharge tube, this test point is convenient for to product inspection and maintenance, trip gear can offset piezo-resistor and dropout electrode tie point completely, after the dropout, the dropout electrode can not produce creepage or arc phenomenon with piezo-resistor, piezo-resistor and gas discharge tube place in same module, need directly change the module under the condition that appears damaging, when the disconnection of dropout point, the dovetail motion of dropout slider along the lock pin under tripping spring's effect, the tie point of cutting off piezo-resistor and dropout electrode, meanwhile the dropout slider moves down under tripping spring's effect, the dropout slider leaves micro-gap switch, the signal of telecommunication disconnection and output telesignalling alarm signal, the disconnection through a dropout point realizes the disconnection of piezo-resistor and gas discharge tube and whole circuit, and send alarm signal fast.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic front view of the tripping state of the present invention;

fig. 3 is a schematic side view of the tripping state of the present invention;

fig. 4 is a schematic bottom view of the tripping state of the present invention;

in the figure: 1. an upper cover; 2. an indicator label; 3. inserting a core; 4. a trip spring; 5. a microswitch; 6. a remote signaling PCB board; 7. a tripping slide block; 8. a voltage dependent resistor; 9. a needle arranging base; 10. a remote signaling terminal base; 11. a PCB board; 12. a pressure-sensitive bus electrode; 13. a PE bus; 14. buckling; 15. a gas discharge tube; 16. a trip electrode; 17. PCB board screw; 18. a base; 19. and (4) a screw.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, 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 work belong to the protection scope of the present invention.

The utility model provides a novel integral type surge protector for high voltage wind power generation system, as shown in fig. 1-4, including base 18 and upper cover 1, be provided with lock pin 3 between upper cover 1 and the base 18, lock pin 3 is inside to be provided with trip gear, piezo-resistor 8, micro-gap switch 5, be provided with telesignalling alarm device, trip electrode 16 and PE busbar 13 on the PCB board 11;

the piezoresistor 8 is connected with one end of the gas discharge tube 15, and a test point is formed at the connection position, the piezoresistor 8 comprises two connecting pins at the bottom, and the two connecting pins are both pressure-sensitive electrodes;

one end of the gas discharge tube 15 is connected with the piezoresistor 8 through a piezobus electrode 12, the other end of the gas discharge tube is connected with a PE bus bar 13, and the gas discharge tube is connected with the piezoresistor 8, the PE bus bar 13 and the piezobus electrode 12 through high-temperature soldering wires; the piezoresistor 8, the gas discharge tube 15 and the piezobus electrode 12 are welded at the same point, the piezoresistor 8 and the gas discharge tube 15 are directly connected in series through the piezobus electrode 12 in the module, and a test point is led out for judging whether the piezoresistor 8 and the gas discharge tube 15 have faults or not under the condition of not disassembling the shell;

the module is provided with upper cover 1 and base 18, upper cover 1 sets up with module base 18 for integrated into one piece, base 18 intermediate position is provided with buckle 14, the joint setting between buckle 14 and the base 18.

As shown in fig. 1-4, the trip device includes a trip slider 8, a trip spring 7 and a trip electrode 1, one end of the trip spring 7 is connected with the module plug core 5, the other end is connected with the trip slider 8, one end of the trip electrode 1 is welded with a voltage-sensitive electrode on the top of the voltage-sensitive resistor 6, and the other end is connected with the wire clamp 12; one end of the piezoresistor 6 is connected with the tripping electrode 1 by adopting low-temperature solder paste, and the other end of the piezoresistor is connected with the gas discharge tube 15 and the test electrode 10 by adopting a high-temperature solder wire; the module core insert 5 is provided with a slide rail and a limiting column, the tripping slide block 8 is provided with a slide groove, the slide groove on the tripping slide block 8 is matched with the slide rail on the module core insert 5, and the tripping slide block 8 moves in the module core insert 5 along the slide rail direction; after the tripping electrode 1 is tripped, the tripping slide block 8 moves to a limit point along the direction of the slide rail of the module insertion core 5 under the action of the tripping spring 7, and the tripping electrode 1 and the pressure-sensitive electrode are completely separated after reaching the limit point, so that the function of arc extinction is achieved.

As shown in fig. 1-4, the remote signaling alarm device is composed of a trip slider 7, a trip spring 4, a microswitch 5, a remote signaling PCB 6 and a remote signaling terminal base 10, wherein both the microswitch 5 and the remote signaling terminal base 10 are connected with the remote signaling PCB 6, one end of the trip spring 4 is arranged in the insertion core 3, the other end is connected with the trip slider 7, one end of the trip slider 7 is in contact with the microswitch 5, and the other end is in contact with a trip electrode 16; the position where the tripping electrode 16 is connected with the piezoresistor 8 forms a tripping point, the tripping device moves under the action of the tripping spring 4, the piezoresistor 8 is disconnected with the tripping electrode 16, the tripping slider 7 is flicked downwards, and the tripping slider 7 is separated from the microswitch 5; the tripping slide block 7 is contacted with the microswitch 5, after the tripping slide block 7 acts, the microswitch 5 is connected with the remote signaling PCB 6, the remote signaling PCB 6 is connected with the remote signaling terminal seat 10 through the PCB 11, and the remote signaling terminal seat 10 is changed from a normally closed state to a normally open state when any microswitch 5 acts, so as to send an alarm signal;

the utility model discloses a draw forth the test point between piezo-resistor 8 and the gas discharge tube 15, this test point is convenient for to product inspection and maintenance, trip gear can offset piezo-resistor 8 and tripping electrode 16 tie point completely, after the dropout, tripping electrode 16 can not produce creepage or arc discharge phenomenon with piezo-resistor 8, piezo-resistor 8 places on same PCB board 11 with gas discharge tube 15, need change whole module under the condition that the damage appears, when the disconnection of tripping point, tripping block 7 is along the dovetail motion of lock pin 3 under tripping spring 4's effect, the tie point of cutting off piezo-resistor 8 and tripping electrode 16, tripping block 7 leaves micro-gap switch 5 meanwhile, the signal of telecommunication disconnection and output telesignalling alarm signal, the disconnection through a tripping point realizes the disconnection of piezo-resistor 8 and gas discharge tube 15 and whole circuit, and send alarm signal fast.

Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a novel an integral type surge protector for high voltage wind power generation system, includes surge protection device and surge cutting device, its characterized in that: the surge protection device is provided with an upper cover (1), a base (18), a PCB (11), a piezoresistor (8), a wire clamp, a piezoresistor bus electrode (12) and a PE bus bar (13), the surge cut-off device is provided with a tripping device, an indication label (2), a microswitch (5) and a remote signaling indication device, an insertion core (3) is arranged between the upper cover (1) and the base (18), a tripping slider (7), the piezoresistor (8), the microswitch (5) and the indication label (2) are arranged in the insertion core (3), and the remote signaling indication device, the tripping electrode (16) and the PE bus bar (13) are arranged in the PCB (11);

one end of the piezoresistor (8) is connected with a gas discharge tube (15), and a test point is led out from the joint through a PCB (11); the microswitch (5) is connected with a remote signaling terminal seat (10) through a remote signaling PCB (6) to form a remote signaling indicating device, and the piezoresistor (8) comprises two connecting pins at the bottom, wherein the two connecting pins are pressure-sensitive electrodes;

one end of the gas discharge tube (15) is connected with the piezoresistor (8) through a piezoresistor bus electrode (12), the other end of the gas discharge tube is connected with a PE bus bar (13), the gas discharge tube is connected with the piezoresistor (8) and the PE bus bar (13) through high-temperature soldering wires, a pin-arranging base (9) is arranged at the bottom of the piezoresistor (8), and the piezoresistor (8) is connected with a PCB (11) through the pin-arranging base (9).

2. The novel integrated surge protector for high voltage wind power generation system of claim 1, wherein: the tripping device comprises a tripping slider (7), a tripping spring (4) and a tripping electrode (16), one end of the tripping spring (4) is connected with the inserting core (3), the other end of the tripping spring is connected with the tripping slider (7), one end of the tripping electrode (16) is welded with one pressure-sensitive electrode at the bottom of the pressure-sensitive resistor (8), and the other end of the tripping electrode is connected with the wire clamp.

3. The novel integrated surge protector for high voltage wind power generation system of claim 2, wherein: one end of the piezoresistor (8) is connected with the tripping electrode (16) by low-temperature tin paste, and the other end of the piezoresistor is connected with the gas discharge tube (15) by a high-temperature tin wire through the piezoresistor bus electrode (12).

4. The novel integrated surge protector for high voltage wind power generation system of claim 1, wherein: the remote signaling indicating device is composed of a tripping slider (7), a microswitch (5), a remote signaling PCB (6) and a remote signaling terminal seat (10), the microswitch (5) is connected with the remote signaling PCB (6), the remote signaling terminal seat (10) is connected with the PCB (11), and the remote signaling PCB (6) is connected with the PCB (11) through a wire.

5. The novel integrated surge protector for high voltage wind power generation system of claim 2, wherein: the locking device is characterized in that a dovetail groove and a limiting column are arranged on the insertion core (3), a dovetail groove is arranged on the tripping sliding block (7), the dovetail groove on the tripping sliding block (7) is matched with the dovetail groove on the insertion core (3), and the tripping sliding block (7) moves in the insertion core (3) along the dovetail groove direction.

6. The novel integrated surge protector for high voltage wind power generation system of claim 2, wherein: the tripping device is characterized in that a tripping point is formed at the position where the tripping electrode (16) is connected with the piezoresistor (8), the tripping device moves under the action of the tripping spring (4), the piezoresistor (8) is disconnected with the tripping electrode (16), the tripping slider (7) springs downwards, the tripping slider (7) is separated from the microswitch (5), and the tripping electrode (16) is connected with the PCB (11) through a PCB screw (17).

7. The novel integrated surge protector for high voltage wind power generation system of claim 1, wherein: the PCB is characterized in that a buckle (14) is arranged in the middle of the base (18), the buckle (14) and the base (18) are clamped, and the base (18) and the PCB (11) are connected through a screw (19).