CN112053921A

CN112053921A - Surge overvoltage time-delay release

Info

Publication number: CN112053921A
Application number: CN202011029678.4A
Authority: CN
Inventors: 何方
Original assignee: Hunan Ping'an Sannong Technology Co ltd
Current assignee: Hunan Ping'an Sannong Technology Co ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2020-12-08

Abstract

The invention discloses a surge overvoltage delay release which comprises a convex shell and a circuit element integrated board arranged in the convex shell, wherein the release is assembled with Ev30-63 and Ev30-63N miniature circuit breakers, and is arranged by using a TH35-7.5 type steel mounting rail of JB6525-1992, the circuit element integrated board takes electricity from L and N phases of the Ev30-63 and the Ev30-63N miniature circuit breakers, the circuit element integrated board is respectively connected with a separating brake coil and a state indicator lamp through conducting wires, and the circuit element integrated board comprises a high-sensitivity detection chip and a voltage-sensitive chip. The tripping device has the overvoltage protection function of a common overvoltage tripping device, also has a wide overvoltage protection voltage range, corresponds to different overvoltage delay functions, and also has a surge protection function and a state indication function. The surge overvoltage delay release is assembled with Ev30-63 and Ev30-63N miniature circuit breakers to form a protection electric appliance integrating overload, short circuit, overvoltage and surge protection.

Description

Surge overvoltage time-delay release

Technical Field

The invention mainly relates to the technical field of circuit protection elements, in particular to a surge overvoltage delay release.

Background

The circuit breaker is a switch for protecting electrical equipment on a circuit, and common circuit breakers are Ev30-63 and Ev30-63N miniature circuit breakers. The conventional small circuit breakers Ev30-63 and Ev30-63N can automatically cut off the circuit when serious overload or short-circuit fault occurs in the circuit, and the functions of the small circuit breakers are equivalent to the combination of a fuse type switch, a thermal relay and the like. Under the development of electrical equipment, the safety of the equipment cannot be better guaranteed by the function of a common circuit breaker, and particularly in the aspects of surge protection and overvoltage delay, a release with the functions of surge protection and under-voltage protection is urgently needed to be developed to assist the circuit breaker in protecting the electrical equipment.

Disclosure of Invention

The invention mainly provides a surge overvoltage delay release, which is used for solving the technical problems in the background technology.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a surge overvoltage delay release comprises a convex shell and a circuit element integrated board arranged in the convex shell, wherein the release is assembled with Ev30-63 and Ev30-63N small circuit breakers and is arranged by standard guide rails, the guide rails conform to TH35-7.5 section steel installation rails of JB6525-1992, and the circuit element integrated board gets electricity from L and N phases of the Ev30-63 and Ev30-63N small circuit breakers;

the circuit component integrated board is respectively connected with the opening coil and the status indicator lamp through wires, the circuit component integrated board comprises a high-sensitivity detection chip and a surge pressure-sensitive chip, the high-sensitivity detection chip is embedded and welded on the circuit component integrated board, and the surge pressure-sensitive chip is welded with a circuit component integrated board body through a solder wire at 150 ℃.

Furthermore, the status indicator lamp is positioned at the front end of the raised part of the convex shell and is fixed in the corresponding clamping groove, and the outer wall of the convex shell is provided with a light hole matched with the clamping groove.

Furthermore, one end of the voltage stabilizing protector is fixed with a rotatable connecting sheet through a shaft, and the rotatable connecting sheet is rotatably connected with the inner wall of the convex shell.

Further, the working rated voltage of the circuit element integrated board is 230V/240V alternating current, the current frequency is 50/60Hz, and the number of poles is unipolar (1P + N).

Further, the release is a long-term working system.

Furthermore, input terminal binding post and ground wire end binding post are provided with respectively at circuit component circuit board both ends, input terminal binding post and ground wire end binding post all weld with circuit component circuit board through the metal guide piece.

Further, the altitude of the installation place of the tripper is not more than 2000 m.

Furthermore, the air temperature of the working environment of the release is-5 ℃ to +40 ℃, and the average temperature in 24 hours is not more than +35 ℃.

Further, when the air temperature of the working environment of the release is +40 ℃, the relative humidity of the air is not more than 50%, and when the average minimum temperature of the wettest month is not more than 25 ℃, the relative humidity is not more than 90%.

Further, the installation types of the tripper are II and III.

Compared with the prior art, the invention has the beneficial effects that:

the tripper is used with Ev30-63 and Ev30-63N miniature circuit breakers in an assembled mode, when lightning strikes and the heat exceeds 150 ℃, the solder wires can be melted, the surge pressure-sensitive chip is separated from the circuit board, the whole circuit is protected from being struck by lightning, after the surge pressure-sensitive chip is separated from the circuit board, the state indicator lamp turns red, the pressure-sensitive chip is indicated to be damaged, a user is prompted to replace the pressure-sensitive chip, and overload, short circuit and overvoltage protection is not affected. When overvoltage occurs in the circuit and the voltage reaches a preset value, the circuit element integrated board feeds a tripping signal back to the execution unit, and the execution unit drives the corresponding miniature circuit breaker to trip, so that the whole circuit is cut off and a load is protected; the surge protection and overvoltage protection functions of the circuit and the power supply equipment are well realized, and the equipment loss probability is reduced.

The present invention will be explained in detail below with reference to the drawings and specific embodiments.

Drawings

Fig. 1 is a cross-sectional view of the internal structure of the trip unit of the present invention;

FIG. 2 is a schematic diagram of a surge voltage sensitive chip mounting structure of the present invention;

fig. 3 is a schematic diagram of a working circuit of the trip device of the present invention when assembled with Ev30-63 and Ev30-63N miniature circuit breakers.

Description of the drawings: 1. a shell shaped like a Chinese character 'tu'; 11. a circuit element integrated board; 11a, a high-sensitivity detection chip; 11b, surge pressure sensitive chip; 12. a brake separating coil; 13. a status indicator light; 14. a rotatable connecting sheet; 15. ground wire end binding post. 16. An input terminal connecting terminal;

Detailed Description

In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the 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 be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes 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, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In the embodiment, referring to the attached drawings 1-3, the surge overvoltage delay release comprises a convex shell 1 and a circuit element integrated board 11 arranged inside the convex shell 1, the release is assembled with Ev30-63 and Ev30-63N miniature circuit breakers and is arranged by standard guide rails, the guide rails conform to the TH35-7.5 steel mounting rails of JB6525-1992, the release is arranged in the types of II and III, the mounting mode is generally vertical, and a handle is arranged upwards to be a power-on position. The ON position is represented by symbol "I" (or "ON"), the OFF position is represented by "O" (or "OFF"), the trip is a long-term operation system, the altitude of the trip installation site is not more than 2000m, the air temperature of the trip working environment is-5 ℃ to +40 ℃, the average temperature in 24h is not more than +35 ℃, the relative humidity of the air is not more than 50% when the air temperature of the trip working environment is +40 ℃, the monthly average minimum temperature of the wettest month is not more than 25 ℃, the relative humidity is not more than 90%, the circuit element integrated board 11 takes electricity at L and N phases of Ev30-63 and Ev30-63N miniature circuit breakers, the circuit element integrated board 11 is respectively connected with the opening coil 12 and the status indicator lamp 13 through wires, the surge element integrated board 11 comprises a high-sensitivity detection chip 11a and a pressure sensitive chip 11b, the high-sensitivity detection chip 11a is embedded and soldered on the circuit element integrated board 11, the surge voltage-sensitive chip 11b is soldered on the circuit element integrated board 11 by using solder wires at 150 ℃, the operating rated voltage of the circuit element integrated board 11 is ac 230V/240V, the current frequency is 50/60Hz, and the number of poles is unipolar (1P + N), and in combination with the embodiment, specific parameters of the trip device are shown in tables 1 and 2:

TABLE 1 OVERVOLTAGE DELAY ACTION CHARACTERISTICS

TABLE 2 Surge (SPD) basic parameters

SPD test class	T2 (class II test)
		Maximum continuous working voltage	Uc＝400Vac
Maximum discharge current	Imax＝15kA
		Nominal discharge current	In＝5kA
Level of voltage protection	Up＝1.5kV

In an embodiment, referring to fig. 1, the status indicator 13 is located at a front end of a protruding portion of the convex-shaped housing 1 and is fixed in a corresponding slot, a light hole matched with the slot is formed in an outer wall of the convex-shaped housing 1, and the working status of the status indicator 13 can be observed from the outside conveniently through the light hole.

In the embodiment, referring to fig. 1 again, a rotatable connecting piece 14 is fixed at one end of the opening coil 12 through a shaft, the rotatable connecting piece 14 is rotatably connected with the inner wall of the convex-shaped shell 1, so that the opening coil 12 is convenient to detach, mount and adjust the angle during mounting, the opening coil is designed to act faster and more sensitively during overvoltage opening, and a circuit is cut off more quickly when a fault occurs, so as to protect load equipment.

In an embodiment, referring to fig. 1 again, an input terminal 16 and a ground terminal 15 are respectively disposed at two ends of the circuit component board 11, the input terminal 16 and the ground terminal 15 are both welded to the circuit component board 11 through a metal conductive sheet, and a wire in a circuit can be pressed on the input terminal 16 and the ground terminal 15 by a screw.

To sum up, the trip of the present invention has the overvoltage protection function of a general overvoltage trip, and also has a wide overvoltage protection voltage range, corresponding to different overvoltage delay functions, and a surge protection function, and the status indicator lamp 13 of the trip has the following three status performances:

firstly, the product is closed, the indicator light is green, and at the moment, the release is powered on and the surge protection function is effective;

secondly, the indicator light is red, and at the moment, the fact that the release is connected with the power supply but the surge protection function is invalid is shown;

thirdly, the indicator light is turned off, and the release is not powered at the moment;

the working performance of the three status indicator lamps 13 is convenient for a user to monitor the surge protection function of the product in real time according to the status of the status indicator lamps 13.

The invention is described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the above-described embodiments, and it is within the scope of the invention to adopt such insubstantial modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.

Claims

1. A surge overvoltage delay release comprises a convex shell (1) and a circuit element integrated board (11) arranged in the convex shell (1), and is characterized in that the release is assembled with Ev30-63 and Ev30-63N small circuit breakers and is arranged by standard guide rails, the guide rails conform to the TH35-7.5 steel installation rails of JB6525-1992, and the circuit element integrated board (11) gets electricity at the L and N phases of the Ev30-63 and Ev30-63N small circuit breakers;

the circuit component integrated board (11) is respectively connected with a switching-off coil (12) and a status indicator lamp (13) through wires, the circuit component integrated board (11) comprises a high-sensitivity detection chip (11a) and a surge pressure-sensitive chip (11b), the high-sensitivity detection chip (11a) is embedded and welded on the circuit component integrated board (11), and the surge pressure-sensitive chip (11b) is welded with a board body of the circuit component integrated board (11) by using a solder wire with the temperature of 150 ℃.

2. The surge overvoltage delay release according to claim 1, wherein the status indicator light (13) is positioned at the front end of the protruding part of the convex shell (1) and fixed in a corresponding clamping groove, and a light hole matched with the clamping groove is formed in the outer wall of the convex shell (1).

3. The surge overvoltage time-delay release according to claim 1, wherein one end of the opening coil (12) is fixed with a rotatable connecting piece (14) through a shaft, and the rotatable connecting piece (14) is rotatably connected with the inner wall of the convex shell (1).

4. The surge overvoltage time-delay release as claimed in claim 1, wherein the operation rated voltage of the circuit element integrated board (11) is 230V/240V ac, the current frequency is 50/60Hz, and the number of poles is single pole (1P + N).

5. The surge overvoltage time delay release of claim 1, wherein the release is a long term operation release.

6. The surge overvoltage time delay release according to claim 1, wherein an input terminal (16) and a ground terminal (15) are respectively arranged at two ends of the circuit element integration board (11), and the input terminal (16) and the ground terminal (15) are welded with the circuit element integration board (11) through metal guide sheets.

7. The surge overvoltage time delay release of claim 1, wherein the altitude of the release installation site is no more than 2000 m.

8. The surge overvoltage delay release of claim 1, wherein the air temperature of the release operating environment is between-5 ℃ and +40 ℃, and the average temperature within 24h does not exceed +35 ℃.

9. The surge overvoltage time delay release of claim 1, wherein the relative humidity of air is no more than 50% when the air temperature of the release operating environment is +40 ℃, and the relative humidity is no more than 90% when the average minimum temperature of the wettest month is no more than 25 ℃.

10. The surge overvoltage time delay release of claim 1, wherein the release is of class II, III.