CN215731136U

CN215731136U - Track-type tripping structure hot plug lightning protection module of piezoresistor

Info

Publication number: CN215731136U
Application number: CN202121925553.XU
Authority: CN
Inventors: 陈志敏; 谭钰华
Original assignee: Shenzhen Leiqi Intelligent Technology Co ltd
Current assignee: Shenzhen Leiqi Intelligent Technology Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-02-01
Anticipated expiration: 2031-08-17

Abstract

The utility model discloses a hot plug lightning protection module with a track type trip structure of a piezoresistor, which comprises a shell, wherein a trip plastic piece is arranged inside the shell, a trip metal piece is fixedly arranged on one side of the trip plastic piece, a sleeve is fixedly connected on the inner side wall of the shell, a second sliding block is arranged in the sleeve, one side of the second sliding block is fixedly connected with the trip plastic piece through a connecting rod, a spring is arranged in the sleeve, a limit column is arranged inside the sleeve, and an alarm switch is arranged on one side of the limit column. According to the lightning protection module, the state of the spring in the sleeve can be seen through the transparent observation window, when the spring fails due to fatigue, the lightning protection module can be replaced and maintained in time, the spring is arranged in the sleeve, the short circuit phenomenon caused by the fact that the end of the spring falls off is avoided, the safety performance of the lightning protection module is improved, and the alarm is arranged to remind maintenance personnel to replace and maintain the lightning protection module in time.

Description

Track-type tripping structure hot plug lightning protection module of piezoresistor

Technical Field

The utility model relates to the technical field of circuit protection, in particular to a hot plug lightning protection module with a track type tripping structure of a piezoresistor.

Background

The surge protector is used for power protection and signal protection, and protects equipment from being damaged by surge pulse and instantaneous overvoltage caused by external (lightning stroke, electromagnetic radiation interference and the like) or system internal (system switching-off and switching-on effect, induction and capacitive load starting and stopping and the like). Under normal conditions, the inside piezo-resistor of surge protector is in the high resistance, is equivalent to the open circuit state, and when the thunderbolt appeared, under the high voltage effect, the piezo-resistor resistance reduces rapidly, and similar short circuit state passes through piezo-resistor to ground conduction lightning current, eliminates the overvoltage because of the thunderbolt causes. Because under long-term work, piezo-resistor itself can produce the degradation, and piezo-resistor leads to the fact abnormal condition to earth conduction current because of the degradation, and the heat of piezo-resistor itself increases fast, for avoiding the conflagration emergence that causes because of the piezo-resistor heat accumulation, sets up the structure that breaks away from in surge protector usually, when the temperature risees, breaks off piezo-resistor from the circuit through breaking away from the structure.

The separation structure of the existing lightning protection module mostly adopts a spring to drive an electric connection part of low-temperature tin soldering to separate, so that the protection effect is achieved, however, the spring is fatigued after being used for a long time, and the spring is fixed by the hooks at two ends of the spring, when one end of the spring is hooked, short circuit risks can be caused on the electrode of the piezoresistor, and certain potential safety hazards are caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a piezoresistor track type tripping structure hot plug lightning protection module.

In order to achieve the purpose, the utility model adopts the following technical scheme: a piezoresistor track type tripping structure hot plug lightning protection module comprises a shell, wherein fixed columns are fixedly connected to two sides of the outer surface of the shell, a first electrode is fixedly arranged on one fixed column, a second electrode is fixedly arranged on the other fixed column, a piezoresistor is arranged in the shell, first sliding grooves are formed in the upper inner wall and the lower inner wall of the shell, first sliding blocks are connected in the first sliding grooves in a sliding mode, a separation plastic piece is fixedly connected between the two first sliding blocks, a separation metal piece is fixedly arranged on one side of the separation plastic piece, a sleeve is fixedly connected to the inner side wall of the shell, a second sliding block is arranged in the sleeve, a connecting rod is fixedly connected to one side of the second sliding block, the other end of the connecting rod extends out of the outer surface of the sleeve and is fixedly connected with the separation plastic piece in a separation mode, a spring is arranged in the sleeve, and a limiting column is arranged in the sleeve, and an alarm switch is arranged on one side of the limiting column close to the second sliding block.

Furthermore, a piezoresistor is fixedly arranged on the rear surface of the inner wall of the shell and electrically connected with the second electrode.

Furthermore, the outer surface of the fixing column is sleeved with an insulating plastic sleeve.

Furthermore, the separation metal piece is connected with the electrode of the piezoresistor through low-temperature soldering tin, and the separation metal piece is electrically connected with the first electrode.

Further, the bottom of casing is equipped with the alarm, alarm and alarm switch electric connection.

Furthermore, a second sliding groove is formed in the inner wall of the sleeve, and the second sliding block is connected with the sleeve in a sliding mode through the second sliding groove.

Furthermore, one end of the spring is fixedly connected with the inner side wall of the shell, and the other end of the spring is fixedly connected with the second sliding block.

Furthermore, the limiting column is fixedly connected with the inner side wall of the shell, and the outer diameter of the limiting column is smaller than the inner diameter of the spring.

Furthermore, a tripping indicating column is fixedly arranged on the bottom surface separated from the plastic part, the tripping indicating column extends out of the lower surface of the shell, and a rectangular hole is formed in the position, corresponding to the tripping indicating column, of the shell.

Furthermore, a state indicator lamp is arranged on the front side of the separation plastic part, a shell cover is detachably connected to the front side of the shell, a transparent observation window is arranged on the shell cover, and a transparent sheet is arranged on the front side of the sleeve.

The utility model has the beneficial effects that:

when the lightning protection module is used, the state of the spring in the sleeve can be seen through the transparent observation window, the lightning protection module is replaced and maintained in time when the spring fails due to fatigue, the spring is arranged in the sleeve, the short circuit phenomenon caused by the falling of the end of the spring is avoided, the safety performance of the lightning protection module is improved, and the alarm is arranged to remind maintenance personnel to replace and maintain the lightning protection module in time.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1 in accordance with the present invention;

FIG. 3 is a front view of the present invention;

fig. 4 is a bottom view of the present invention.

Illustration of the drawings:

1. a housing; 2. fixing a column; 3. a first electrode; 4. a first chute; 5. detaching the metal piece; 6. separating the plastic part; 7. a first slider; 8. a voltage dependent resistor; 9. a second electrode; 10. an alarm; 11. a sleeve; 12. a second chute; 13. a limiting column; 14. an alarm switch; 15. a spring; 16. a second slider; 17. a connecting rod; 18. a trip indicating post; 19. A rectangular hole; 20. a status indicator light; 21. a transparent viewing window.

Detailed Description

Fig. 1 to 4 show that, a hot plug lightning protection module with a track type trip structure of a varistor is related to, which includes a casing 1, fixing columns 2 are fixedly connected to two sides of the outer surface of the casing 1, a first electrode 3 is fixedly arranged on one of the fixing columns 2, a second electrode 9 is fixedly arranged on the other fixing column 2, a varistor 8 is arranged inside the casing 1, first chutes 4 are arranged on the upper and lower inner walls of the casing 1, first sliders 7 are slidably connected in the first chutes 4, a trip plastic member 6 is fixedly connected between the two first sliders 7, a trip metal member 5 is fixedly arranged on one side of the trip plastic member 6, a sleeve 11 is fixedly connected to the inner side wall of the casing 1, second slider 16 is arranged in the sleeve 11, a connecting rod 17 is fixedly connected to one side of the second slider 16, the other end of the connecting rod 17 extends out of the outer surface of the sleeve 11 and is fixedly connected with the trip plastic member 6, a spring 15 is arranged in the sleeve 11, a limiting column 13 is arranged in the sleeve 11, and an alarm switch 14 is arranged on one side, close to the second sliding block 16, of the limiting column 13.

When the track-type tripping structure of the piezoresistor is used for hot plugging of the lightning protection module, the initial state of the lightning protection module is that the metal part 5 and the motor of the piezoresistor 8 are connected together by low-temperature tin soldering, the spring 15 is in a stretching state, the first electrode 3 and the second electrode 9 are connected into a circuit by the fixing columns 2 on two sides of the handheld shell 1, when the temperature of the piezoresistor 8 rises due to degradation, the tin soldering melts, the metal part 5 and the piezoresistor 8 are disconnected, under the action of the spring 15, the second slider 16 drives the connecting rod 17, the plastic part 6 and the metal part 5 to move leftwards together to disconnect the lightning protection module from the circuit to play a role of protecting the circuit, the second slider 16 is contacted with the alarm switch 14, the alarm 10 alarms to remind a maintenance person to replace the lightning protection module, the spring 15 of the lightning protection module is arranged in the sleeve 11 to avoid internal short circuit caused by the disconnection of the end of the spring 15, the safety of the device is improved.

In a further scheme, a piezoresistor 8 is fixedly arranged on the rear surface of the inner wall of the shell 1, the piezoresistor 8 is electrically connected with a second electrode 9, and the piezoresistor 8 is connected to a circuit through the second electrode 9 to play a role in protection such as lightning protection.

In a further scheme, the outer surface of the fixing column 2 is sleeved with an insulating plastic sleeve, so that the lightning protection module can be conveniently plugged and pulled manually to be connected with or separated from a circuit.

In a further scheme, the separation metal piece 5 is connected with the electrode of the piezoresistor 8 through low-temperature soldering tin, when the temperature of the piezoresistor 8 is too high, the separation metal piece 5 is separated from the electrode of the piezoresistor 8, the separation metal piece 5 is electrically connected with the first electrode 3, and the separation metal piece 5 is connected into a circuit through the first electrode 3.

In a further scheme, the bottom of the shell 1 is provided with an alarm 10, the alarm 10 is electrically connected with an alarm switch 14, and the alarm switch 14 controls the alarm 10 to be powered on or powered off.

In a further scheme, a second sliding groove 12 is formed in the inner wall of the sleeve 11, and the second sliding block 16 is connected with the sleeve 11 in a sliding mode through the second sliding groove 12 to limit the second sliding block 16 to slide along the length direction of the sleeve 11.

In a further scheme, one end of the spring 15 is fixedly connected with the inner side wall of the shell 1, the other end of the spring 15 is fixedly connected with the second sliding block 16, and when the separation metal piece 5 is separated from the electrode of the piezoresistor 8, the spring 15 controls the second sliding block 16 to move leftwards.

In a further scheme, the limiting column 13 is fixedly connected with the inner side wall of the shell 1, the outer diameter of the limiting column 13 is smaller than the inner diameter of the spring 15, and the arrangement of the limiting column 13 does not influence the action of the spring 15.

In a further scheme, a tripping indicating column 18 is fixedly arranged on the bottom surface separated from the plastic part 6, the tripping indicating column 18 extends out of the lower surface of the shell 1, a rectangular hole 19 is formed in the position, corresponding to the tripping indicating column 18, of the shell 1, the tripping indicating column 18 prompts whether the lightning protection module is tripped or not, and the rectangular hole 19 enables the tripping indicating column 18 to move without interference of the shell 1.

In the further scheme, break away from the front of working of plastics 6 and be equipped with status indicator lamp 20, casing 1's front can be dismantled and be connected with cap 22, is equipped with transparent observation window 21 on cap 22, and sleeve 11's front is equipped with the transparency, and whether this lightning protection module is broken down is shown to status indicator lamp 20, and transparent observation window 21 and transparency are convenient for observe status indicator lamp 20 and the inside spring 15 state of sleeve 11.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a piezo-resistor track formula trip structure hot plug lightning protection module, includes casing (1), its characterized in that: the surface both sides fixedly connected with fixed column (2) of casing (1), fixed being equipped with first electrode (3) on one of them fixed column (2), fixed being equipped with second electrode (9) on another fixed column (2), the inside of casing (1) is equipped with piezo-resistor (8), be equipped with first spout (4) on the upper and lower inner wall of casing (1), sliding connection has first slider (7) in first spout (4), two fixedly connected with breaks away from working of plastics (6) between first slider (7), one side that breaks away from working of plastics (6) is fixed to be equipped with breaks away from metalwork (5), fixedly connected with sleeve (11) on the inside wall of casing (1), be equipped with second slider (16) in sleeve (11), one side fixedly connected with connecting rod (17) of second slider (16), the other end of connecting rod (17) stretch out the surface of sleeve (11) and with break away from (6) fixed working of plastics (11) And a spring (15) is arranged in the sleeve (11), a limiting column (13) is arranged in the sleeve (11), and an alarm switch (14) is arranged on one side, close to the second sliding block (16), of the limiting column (13).

2. The hot plug lightning protection module with the track type trip structure of the piezoresistor according to claim 1, wherein: the inner wall rear surface of casing (1) is fixed and is equipped with piezo-resistor (8), piezo-resistor (8) and second electrode (9) electric connection.

3. The hot plug lightning protection module with the track type trip structure of the piezoresistor according to claim 1, wherein: the outer surface of the fixing column (2) is sleeved with an insulating plastic sleeve.

4. The hot plug lightning protection module with the track type trip structure of the piezoresistor according to claim 1, wherein: the separation metal piece (5) is connected with the electrode of the piezoresistor (8) through low-temperature soldering tin, and the separation metal piece (5) is electrically connected with the first electrode (3).

5. The hot plug lightning protection module with the track type trip structure of the piezoresistor according to claim 1, wherein: the bottom of casing (1) is equipped with alarm (10), alarm (10) and alarm switch (14) electric connection.

6. The hot plug lightning protection module with the track type trip structure of the piezoresistor according to claim 1, wherein: and a second sliding groove (12) is formed in the inner wall of the sleeve (11), and the second sliding block (16) is connected with the sleeve (11) in a sliding mode through the second sliding groove (12).

7. The hot plug lightning protection module with the track type trip structure of the piezoresistor according to claim 1, wherein: one end of the spring (15) is fixedly connected with the inner side wall of the shell (1), and the other end of the spring (15) is fixedly connected with the second sliding block (16).

8. The hot plug lightning protection module with the track type trip structure of the piezoresistor according to claim 1, wherein: spacing post (13) and the inside wall fixed connection of casing (1), the external diameter of spacing post (13) is less than the internal diameter of spring (15).

9. The hot plug lightning protection module with the track type trip structure of the piezoresistor according to claim 1, wherein: a tripping indicating column (18) is fixedly arranged on the bottom surface of the separation plastic part (6), the tripping indicating column (18) extends out of the lower surface of the shell (1), and a rectangular hole (19) is formed in the position, corresponding to the tripping indicating column (18), of the shell (1).

10. The hot plug lightning protection module with the track type trip structure of the piezoresistor according to claim 1, wherein: the front side of the separation plastic part (6) is provided with a status indicator lamp (20), the front side of the shell (1) is detachably connected with a shell cover (22), the shell cover (22) is provided with a transparent observation window (21), and the front side of the sleeve (11) is provided with a transparent sheet.