CN211603432U

CN211603432U - Low-voltage arc fault detection equipment

Info

Publication number: CN211603432U
Application number: CN202020052230.3U
Authority: CN
Inventors: 陈立成; 褚若波
Original assignee: Fujian Province Putian City Heng Li Sensor Co ltd
Current assignee: Fujian Province Putian City Heng Li Sensor Co ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-09-29
Anticipated expiration: 2030-01-10

Abstract

The utility model discloses a low-voltage arc fault detection device, which comprises a mounting plate and a detector body, wherein the detector body is fixedly arranged on the surface of the mounting plate, the surface of the mounting plate is positioned outside the detector body and is connected with a protective cover, a first clamping groove is symmetrically formed on the surface of the mounting plate, the top of the first clamping groove and the top of the mounting plate are positioned in the same plane, a first clamping rod is symmetrically and fixedly connected with the surface of the detector body and is matched and slidably connected in the first clamping groove, the detector body is slidably connected on the surface of the mounting plate through the first clamping rod arranged on the detector body, one end of the surface of the mounting plate is rotatably connected with a fixed rod, the end part of the fixed rod is provided with a clamping groove, the other end of the surface of the mounting plate is fixedly connected with a fixed buckle, the detection device is convenient to install and disassemble, the installation time is, the detection accuracy is high.

Description

Low-voltage arc fault detection equipment

Technical Field

The utility model relates to a low pressure electric arc fault detection technical field specifically is a low pressure electric arc fault detection equipment.

Background

The arc fault can be caused by breakage, short circuit and bad relief caused by aging and damage of the power supply circuit, and under the normal load, the arc fault can generate local high temperature of more than 2000 ℃ in a very short time, so that inflammable and explosive substances around the lead can be ignited to cause fire, and the life and property safety of people is seriously harmed.

The existing arc fault detection equipment is generally characterized in that a detector is fixedly installed on a part to be detected through a fixing screw, the installation mode is time-consuming and inconvenient to maintain, various sensors are generally installed at positions near a fault arc in use of the existing arc fault detection equipment to detect, however, the generation of an arc is not obvious and the detection is not easy to carry out, and therefore the low-voltage arc fault detection equipment is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low pressure arc fault detection equipment to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a low-voltage arc fault detection device comprises a mounting plate and a detector body, wherein the detector body is fixedly mounted on the surface of the mounting plate, the surface of the mounting plate is positioned on the outer side of the detector body and is connected with a protective cover, a first clamping groove is symmetrically formed in the surface of the mounting plate, the top of the first clamping groove and the top of the mounting plate are positioned in the same plane, a first clamping rod is fixedly connected with the surface of the detector body in a symmetrical mode and is matched and slidably connected in the first clamping groove, the detector body is slidably connected to the surface of the mounting plate through the first clamping rod arranged on the detector body, a fixed rod is rotatably connected to one end of the surface of the mounting plate, a fixed groove is formed in the end part of the fixed rod, a fixed buckle is fixedly connected to the other end of the surface of the mounting plate and is clamped in the fixed groove at, the detector is internally and sequentially provided with a micro-processing module, a power circuit module, a signal conditioning module, a signal acquisition module, an alarm module and an analog-to-digital conversion module, wherein the power circuit module is respectively and electrically connected with the micro-processing module, the signal conditioning module, the signal acquisition module, the alarm module and the analog-to-digital conversion module, the signal acquisition module is connected with the signal conditioning module, the signal conditioning module is connected with the analog-to-digital conversion module, and the micro-processing module is respectively connected with the alarm module and the analog-to-digital conversion module.

Preferably, the second draw-in groove has been seted up to mounting panel surface symmetry, and the top of second draw-in groove is in the coplanar with the top of mounting panel, the surface symmetry of protection casing is fixed with the second kelly, and second kelly cooperation sliding connection is in the second draw-in groove, the protection casing is through setting up the second kelly sliding connection on it at the mounting panel surface.

Preferably, the signal acquisition module includes current transformer, temperature sensor and arc light sensor, and current transformer, temperature sensor and arc light sensor all with signal acquisition module electric connection.

Preferably, three counter bores are arranged at the two ends of the surface of the mounting plate at equal intervals.

Preferably, the surface of the protection casing is provided with an observation window, and the observation window is arranged in a vertical direction.

Preferably, the cross sections of the first clamping rod, the second clamping rod, the first clamping groove and the second clamping groove are all in a T-shaped structure.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses when needing to install the detector body, earlier with the position of mounting panel fixed mounting at the detector body that needs to be installed through fixing bolt, then insert first kelly on the detector body in the first draw-in groove and glide from top to bottom, when first kelly slides to first draw-in groove bottom, rotate the dead lever and detain its fixed knot to the fixed slot of dead lever tip in, the dead lever this moment plays the fixed action to the detector body, prevent that first kelly and first draw-in groove break away from being connected, realize the quick fixation to the detector body, when needing to overhaul it, only need with dead lever and fixed knot break away from being connected, and upwards shift out the detector body can, it is comparatively convenient to the dismouting of the detector body, the installation time has been saved, play the guard action to the detector body through having set up the protection casing.

2. The utility model provides the power driving for the alarm module, the micro-processing module, the analog-to-digital conversion module, the signal conditioning module and the signal acquisition module through the power circuit module, which is convenient for detecting the low-voltage arc fault, adopts the current transformer which acquires the current in the circuit, and acquires the current in a plurality of paths, detects the temperature and the arc light in the circuit through the temperature sensor and the arc light sensor, processes the signals, comprehensively judges whether the arc is generated according to the characteristics of the signals, generally generates the arc light and increases the temperature when the fault arc is generated, thereby realizing the detection of the low-voltage arc fault, being convenient for judging according to a plurality of aspects, the detection accuracy is higher, the analog-to-digital conversion is convenient to be carried out through the analog-to-digital conversion module, the acquired signal is an analog signal, the analog-to-digital conversion module is used for converting the digital signals into digital signals to be processed conveniently, the micro-processing module is used for analyzing and judging the converted digital signals, and when a low-voltage arc fault is analyzed, the alarm module is used for giving an alarm in time, so that a user can know the low-voltage arc fault in time conveniently.

Drawings

FIG. 1 is a schematic structural view of a front view and a sectional view of the present invention;

fig. 2 is a schematic structural view of a cross-sectional view of a top view of the present invention;

FIG. 3 is a schematic view of the connection structure of the modules inside the detector body according to the present invention;

fig. 4 is the schematic diagram of the structure of the signal acquisition module of the present invention.

In the figure: 1. mounting a plate; 2. a detector body; 3. a countersunk hole; 4. a protective cover; 5. a fixing buckle; 6. fixing the rod; 7. a first card slot; 8. a second card slot; 9. a first clamping rod; 10. a second clamping rod; 11. an observation window; 12. a power circuit module; 13. a microprocessor module; 14. an alarm module; 15. an analog-to-digital conversion module; 16. a signal conditioning module; 17. a signal acquisition module; 18. a current transformer; 19. a temperature sensor; 20. an arc sensor.

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.

Referring to fig. 1-4, the present invention provides a technical solution: a low-voltage arc fault detection device comprises a mounting plate 1 and a detector body 2, wherein the detector body 2 is fixedly arranged on the surface of the mounting plate 1, the detection of a low-voltage arc fault is convenient to carry out, a protective cover 4 is connected to the surface of the mounting plate 1, which is positioned outside the detector body 2, and plays a role in protecting the detector body 2, first clamping grooves 7 are symmetrically arranged on the surface of the mounting plate 1, the top parts of the first clamping grooves 7 and the top part of the mounting plate 1 are positioned in the same plane, first clamping rods 9 are symmetrically and fixedly connected to the surface of the detector body 2, the first clamping rods 9 are matched and slidably connected into the first clamping grooves 7, the detector body 2 is slidably connected to the surface of the mounting plate 1 through the first clamping rods 9 arranged on the detector body, one end of the surface of the mounting plate 1 is rotatably connected with a fixed rod 6, the end part of the fixed, the fixing buckle 5 is clamped in the fixing groove at the end part of the fixing rod 6, the bottom of the fixing rod 6 is contacted with the top of the detector body 2, when the detector body 2 is required to be installed, the mounting plate 1 is fixedly installed at the position where the detector body 2 is required to be installed through the fixing bolt, then the first clamping rod 9 on the detector body 2 is inserted into the first clamping groove 7 from top to bottom and slides downwards, when the first clamping rod 9 slides to the bottom of the first clamping groove 7, the fixing rod 6 is rotated and the fixing buckle 5 fixed by the fixing rod is clamped in the fixing groove at the end part of the fixing rod 6, at the moment, the fixing rod 6 plays a fixing role on the detector body 2, the first clamping rod 9 is prevented from being disconnected from the first clamping groove 7, the detector body 2 is quickly fixed, when the detector body is required to be overhauled, the fixing rod 6 is only required to be disconnected from the fixing buckle 5, and the detector body 2 is, a micro-processing module 13, a power circuit module 12, a signal conditioning module 16, a signal acquisition module 17, an alarm module 14 and an analog-to-digital conversion module 15 are sequentially installed in the detector body 2, the power circuit module 12 is respectively electrically connected with the micro-processing module 13, the signal conditioning module 16, the signal acquisition module 17, the alarm module 14 and the analog-to-digital conversion module 15, the power circuit module 12 provides electric drive for the alarm module 14, the micro-processing module 13, the analog-to-digital conversion module 15, the signal conditioning module 16 and the signal acquisition module 17 to facilitate the detection of low-voltage arc faults, the signal acquisition module 17 is connected with the signal conditioning module 16, the signal conditioning module 16 is connected with the analog-to-digital conversion module 15, the micro-processing module 13 is respectively connected with the alarm module 14 and the analog-to-digital conversion module 15, the signal conditioning module 16 facilitates the signal and amplifies the signal, be convenient for detect more easily, can in time report to the police to the low pressure electric arc trouble that detects through alarm module 14, be convenient for carry out analog-to-digital conversion through analog-to-digital conversion module 15, the signal of gathering is analog signal, utilize analog-to-digital conversion module 15 to convert it into digital signal and conveniently handle, microprocessor module 13 carries out analysis and judgment to the digital signal after the conversion, when low pressure electric arc trouble is arrived in the analysis, in time report to the police through alarm module 14, the user of being convenient for in time knows.

Second draw-in groove 8 has been seted up to mounting panel 1 surface symmetry, and the top of second draw-in groove 8 is in the coplanar with mounting panel 1's top, the surface symmetry of protection casing 4 is fixed with second kelly 10, and second kelly 10 cooperation sliding connection is in second draw-in groove 8, protection casing 4 is through setting up second kelly 10 sliding connection on it on mounting panel 1 surface, be convenient for the quick detachable connection between protection casing 4 and the mounting panel 1, protection casing 4 can play dustproof and guard action to the detector body 2.

Signal acquisition module 17 includes current transformer 18, temperature sensor 19 and arc sensor 20, and current transformer 18, temperature sensor 19 and arc sensor 20 all with signal acquisition module 17 electric connection, adopt current transformer 18, current transformer 18 gathers the electric current in the circuit, and carry out multichannel collection in the collection, through temperature sensor 19 and arc sensor 20, utilize temperature sensor 19 and arc sensor 20, detect the temperature and the arc light in the circuit, and handle these signals, whether there is the arc to produce according to the characteristic of these signals comprehensive judgement, can produce arc light and temperature rise when the trouble arc produces under the general condition, with this detection to low voltage arc trouble of realization.

Three counter sink holes 3 have been seted up to the equal equidistance in both ends on mounting panel 1 surface, are convenient for to the fixed mounting of mounting panel 1.

The surface of protection casing 4 is provided with observation window 11, and observation window 11 becomes vertical direction setting, is convenient for observe the detector body 2 of protection casing 4 inside through the observation window 11 that sets up.

The cross sections of the first clamping rod 9, the second clamping rod 10, the first clamping groove 7 and the second clamping groove 8 are all in a T-shaped structure, so that the connection between the first clamping rod 9 and the first clamping groove 7 and between the second clamping rod 10 and the second clamping groove 8 is more stable.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A low-voltage arc fault detection device comprises a mounting plate (1) and a detector body (2), and is characterized in that: the surface fixing of mounting panel (1) installs the detector body (2), the external connection that mounting panel (1) surface is located the detector body (2) has protection casing (4), first draw-in groove (7) have been seted up to the surface symmetry of mounting panel (1), and the top of first draw-in groove (7) is located the coplanar with the top of mounting panel (1), the surface symmetry fixedly connected with first kelly (9) of the detector body (2), and first kelly (9) cooperation sliding connection is in first draw-in groove (7), the detector body (2) is through setting up first kelly (9) sliding connection on it on mounting panel (1) surface, the one end rotation on mounting panel (1) surface is connected with dead lever (6), and the tip of dead lever (6) has seted up the fixed slot, the other end fixedly connected with fixed knot (5) on mounting panel (1) surface, the fixing buckle (5) is clamped in the fixing groove at the end part of the fixing rod (6), the bottom of the fixing rod (6) is contacted with the top of the detector body (2), a micro-processing module (13), a power circuit module (12), a signal conditioning module (16), a signal acquisition module (17), an alarm module (14) and an analog-to-digital conversion module (15) are sequentially arranged in the detector body (2), the power circuit module (12) is respectively and electrically connected with the micro-processing module (13), the signal conditioning module (16), the signal acquisition module (17), the alarm module (14) and the analog-to-digital conversion module (15), the signal acquisition module (17) is connected with the signal conditioning module (16), and the signal conditioning module (16) is connected with the analog-to-digital conversion module (15), and the micro-processing module (13) is respectively connected with the alarm module (14) and the analog-to-digital conversion module (15).

2. A low voltage arc fault detection device according to claim 1, wherein: second draw-in groove (8) have been seted up to mounting panel (1) surface symmetry, and the top of second draw-in groove (8) is in the coplanar with the top of mounting panel (1), the surface symmetry of protection casing (4) is fixed with second kelly (10), and second kelly (10) cooperation sliding connection is in second draw-in groove (8), protection casing (4) are through setting up second kelly (10) sliding connection on it at mounting panel (1) surface.

3. A low voltage arc fault detection device according to claim 1, wherein: the signal acquisition module (17) comprises a current transformer (18), a temperature sensor (19) and an arc light sensor (20), and the current transformer (18), the temperature sensor (19) and the arc light sensor (20) are all electrically connected with the signal acquisition module (17).

4. A low voltage arc fault detection device according to claim 1, wherein: three counter bores (3) have been seted up to the equal equidistance in both ends on mounting panel (1) surface.

5. A low voltage arc fault detection device according to claim 1, wherein: the surface of protection casing (4) is provided with observation window (11), and observation window (11) become vertical direction and set up.

6. A low voltage arc fault detection device according to claim 2, wherein: the cross sections of the first clamping rod (9), the second clamping rod (10), the first clamping groove (7) and the second clamping groove (8) are all in a T-shaped structure.