CN213633678U

CN213633678U - Ultraviolet arcing sensor

Info

Publication number: CN213633678U
Application number: CN202022125734.6U
Authority: CN
Inventors: 邓文; 龚俊杰; 王洪建; 张海宁; 李晓熹
Original assignee: Beijing G Linkwell Technology Co ltd
Current assignee: Beijing G Linkwell Technology Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-07-06
Anticipated expiration: 2030-09-24

Abstract

The utility model relates to an ultraviolet arcing sensor, it includes casing, camera lens and ultraviolet detecting tube, and the camera lens is installed on the casing, and ultraviolet detecting tube is fixed to be installed in the casing, and ultraviolet detecting tube is relative with the camera lens, and the casing is the metal shielding body, installs power source and communication interface on the casing, and the power supply end and the power source of ultraviolet detecting tube are connected, and the output and the communication interface of ultraviolet detecting tube pass through the wire and are connected. This application has the effect that the convenience detects bow net arcing.

Description

Ultraviolet arcing sensor

Technical Field

The application relates to the field of bow net arcing detection, in particular to an ultraviolet arcing sensor.

Background

Along with the rapid development of the electric railway career, the construction of the high-speed railway in China is continuously improved, the requirement of the high-speed railway on the current receiving quality between the pantograph nets is higher, the pantograph net off-line is an important factor influencing the good current receiving between the pantograph nets, and the pantograph net arc burning is an important embodiment of the pantograph net off-line. The sunlight wavelength distribution is wide, mainly concentrates on 300-1100 nm and radiation intensity is great, and bow net arcing spectral distribution range is comparatively dispersed, evenly distributes in ultraviolet, visible and infrared region, wherein mainly concentrates on in ultraviolet light wave band (10-400 nm): 240-260 nm, 300-330 nm, 390-400 nm. Because the wave band of 240-260 nm is in the range of the solar blind area, the content of the earth surface is very little, if the ultraviolet light of the wave band is used as the characteristic quantity of bow net arcing detection, the interference of sunlight can be effectively eliminated, and whether the bow net arcing phenomenon occurs or not can be detected more accurately and comprehensively.

The non-visible light detection bow net arcing method in the related art comprises a roof detection part and an in-vehicle detection part, wherein the roof detection part is in communication connection with the in-vehicle detection part, the roof detection part mainly comprises an optical lens group, the in-vehicle detection part mainly comprises a photomultiplier tube, a current sensor, a signal acquisition and processing board, a data memory and a wireless transmitting board, the input end of the signal acquisition and processing board is respectively connected with the photomultiplier tube and the current sensor, the output end of the signal acquisition and processing board is connected with the data memory, and the data memory is connected with the wireless transmitting board. An optical lens group of a car roof detection part collects bow net arcing characteristic ultraviolet light signals, the ultraviolet light signals enter a photomultiplier tube of a detection part in a transmission belt car through an ultraviolet light fiber bundle, the ultraviolet light signals are converted into electric signals through the photomultiplier tube, meanwhile, a signal collection processing board of the detection part in the car detects traction current parameters of an electric power train through a current sensor, and synchronously collects positioning information and the electric signals of the photomultiplier tube, the collected information comprises bow net arcing electric signals, traction current, speed, kilometer sign information and the like, and all collected signals are filtered, amplified, controlled and the like, so that the positioning of a bow net arcing generation section is realized.

In view of the above-mentioned related technologies, there is a serious electromagnetic interference near the pantograph, which is susceptible to interference when converting the ultraviolet light from an optical signal to an electrical signal, so that it is necessary to introduce the ultraviolet light into the vehicle through an optical fiber for signal conversion.

Disclosure of Invention

In order to facilitate the detection of bow net arcing, the application provides an ultraviolet arcing sensor.

The application provides an ultraviolet arcing sensor adopts following technical scheme:

the utility model provides an ultraviolet arcing sensor, includes casing, camera lens and ultraviolet detecting tube, and the camera lens is installed on the casing, and ultraviolet detecting tube is fixed to be installed in the casing, and ultraviolet detecting tube is relative with the camera lens, and the casing is the metal shielding body, installs power source and communication interface on the casing, and the power supply end and the power source connection of ultraviolet detecting tube, the output and the communication interface of ultraviolet detecting tube pass through the wire and are connected.

Through adopting above-mentioned technical scheme, install the casing is fixed at the roof, aim at pantograph and contact net junction with the camera lens, the ultraviolet ray that sends when bow net arcing produces passes through the camera lens and transmits to the ultraviolet detecting tube, the ultraviolet detecting tube converts the ultraviolet ray signal into the signal of telecommunication and passes through communication interface output with this signal of telecommunication, the ultraviolet detecting tube passes through inclosed metal casing and external environment and keeps apart, because metal casing can play electrostatic shielding and electromagnetic shield's effect, consequently, outside strong electric field and strong magnetic field have been reduced the interference to the ultraviolet detecting tube, ultraviolet detecting tube detection precision has been guaranteed, the radiation of ultraviolet detecting tube to external environment has also been reduced simultaneously, consequently, need not set up optic fibre and carry out signal transmission when detecting bow net arcing, can conveniently detect bow net arcing.

Preferably, a protective cover is fixedly arranged outside the lens.

Through adopting above-mentioned technical scheme, the protection casing plays the guard action to the camera lens, makes the camera lens not fragile in installation, transportation and use.

Preferably, the outer side wall of the housing is coated with a conductive paint.

By adopting the technical scheme, the conductive paint is the electromagnetic wave interference preventing paint made of silver, copper, nickel or other composite particles, and the paint layer after drying and curing is stable in performance and high in conductivity, so that the conductive paint can be used for corrosion prevention of an underground power grid and can be used as an electromagnetic shielding paint, and the electromagnetic shielding effect of the shell is improved.

Preferably, an ultraviolet light filter is arranged outside the lens.

By adopting the technical scheme, the ultraviolet light filter sheet is mainly used for extracting ultraviolet light in bow net arcing.

Preferably, the shell is internally vacuumized, and an exhaust valve is arranged on the shell.

Through adopting above-mentioned technical scheme, the inside cavity of casing is favorable to the propagation of ultraviolet ray in the casing, improves the propagation reliability of ultraviolet ray, and then has improved the detection reliability of sensor.

Preferably, be provided with the buckler on the casing, the buckler includes two split type concatenation covers, concatenation cover and casing sliding connection, all seted up the through wires hole on two relative borders of two concatenation covers, and two concatenation covers pass through the bolt and can dismantle the connection.

Through adopting above-mentioned technical scheme, with two concatenation covers separation, with data transmission line and communication interface connection, with power supply line and power source interface connection, then splice two concatenation covers and pass through bolted connection, make data transmission line and power supply line pass the through wires hole respectively, reach the effect sealed with communication interface and power source interface, make the sensor be difficult for receiving the influence under rainwater weather, list the car and can lead to the sensor vibration that is located the roof when high-speed operation, the concatenation cover plays the spacing effect of butt to the plug wire end of power supply line and data transmission line, make the plug wire end of power supply line and data transmission line end be difficult for and power source interface and communication interface grafting unstability, the job stabilization nature of sensor has been improved.

Preferably, a rubber layer is fixedly arranged on the inner side wall of the threading hole.

Through adopting above-mentioned technical scheme, because the rubber layer can take place deformation, consequently can be sealed with the clearance between wire and the through wires hole inside wall for during rainwater weather, the rainwater is difficult for passing and gets into power source and communication kneck through the hole.

Preferably, the shell is provided with an inserting rod, the roof is fixedly connected with a mounting seat, the inserting rod is inserted into the mounting seat in an inserting mode, and the mounting seat is detachably connected with the inserting rod through a bolt.

Through adopting above-mentioned technical scheme, when installing the casing on the roof, at first with the fixed setting of mount pad on the roof, through setting up angle and the position of mount pad for behind the grafting pole and the cooperation of pegging graft of mount pad, the camera lens can aim at the check point on the pantograph, then passes through the bolt with the grafting pole and the mount pad and can dismantle the connection, has reached the effect that conveniently aims at camera lens and check point department fast.

Drawings

FIG. 1 is a schematic overall structure diagram of a first embodiment of the present application;

FIG. 2 is a schematic diagram highlighting the structure of the power interface and the communications interface of FIG. 1;

FIG. 3 is a schematic overall structure diagram of a second embodiment of the present application;

fig. 4 is a schematic view for highlighting the structure of the waterproof cover of fig. 3.

Description of reference numerals: 01. a vehicle roof; 011. a mounting seat; 012. a pantograph; 1. a housing; 11. mounting a shell; 111. a power interface; 112. a communication interface; 113. an exhaust valve; 12. an end cap; 121. a protective cover; 2. a lens; 3. an ultraviolet detection tube; 4. splicing the covers; 41. threading holes; 5. a plug rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses an ultraviolet arcing sensor.

The first embodiment is as follows:

referring to fig. 1, including casing 1, camera lens 2 and ultraviolet detecting tube 3, casing 1 is the metal shielding body, casing 1 is including installation shell 11 and end cover 12, ultraviolet detecting tube 3 is fixed to be set up in installation shell 11, one side of installation shell 11 is the opening form, end cover 12 can dismantle with installation shell 11 through bolted connection's mode and be connected, camera lens 2 is installed on end cover 12, camera lens 2 is relative with ultraviolet detecting tube 3, the fixed protection casing 121 that is provided with in camera lens 2 outside, be provided with power source 111 and communication interface 112 on installation shell 11. The shell 1 is fixedly arranged on the roof, the lens 2 is aligned to the arc burning detection position of the pantograph, ultraviolet light emitted when the pantograph net is in arc burning is transmitted to the ultraviolet detection tube 3 through the lens 2, the ultraviolet detection tube 3 converts an ultraviolet light signal into an electric signal and outputs the electric signal through the communication interface 112, the ultraviolet detection tube 3 is isolated from the external environment through the closed metal shell 1, and the metal shell 1 can play the roles of electrostatic shielding and electromagnetic shielding, so that the interference of an external strong electric field and a strong magnetic field on the ultraviolet detection tube 3 is reduced, the detection precision of the ultraviolet detection tube 3 is improved, meanwhile, the radiation of the ultraviolet detection tube 3 to the external environment is also reduced, and the effect of conveniently detecting the pantograph net arc burning is achieved; the protective cover 121 protects the lens 2, so that the lens 2 is not easy to damage in the installation, transportation and use processes.

In order to further improve the adaptability of the ultraviolet detection tube 3, the ultraviolet detection tube 3 adopted in the first embodiment of the present application has high and low temperature resistance, and is sensitive to ultraviolet rays near 260nm, and because the ultraviolet waveband in natural light is 280 ± 5nm, the ultraviolet detection tube 3 sensitive to the 260nm waveband can effectively reduce the influence of the ultraviolet rays in the natural light on the detection precision.

In order to further reduce the influence of strong voltage and strong current of a pantograph on an ultraviolet detection tube 3 in a shell 1, in the first embodiment of the application, conductive paint is coated on the outer side wall of the shell 1, the conductive paint is anti-electromagnetic wave interference paint made of silver, copper, nickel or other composite particles, the conductive paint is single-component, labor-saving, time-saving, convenient and fast, good in adhesive force, smooth, high in cohesive force and free of loose particles, a paint layer after drying and curing is stable in performance and high in conductivity, the paint layer can be used for corrosion prevention of an underground power grid and can be used as an electromagnetic shielding paint, and the shielding effect of the shell 1 is improved; in addition, in order to enhance the electromagnetic shielding effect of the housing 1, the housing 1 may be configured as a multi-layer structure, wherein the outer layer is generally made of a material with high electrical conductivity to increase the reflection effect, and the inner layer is made of a material with high magnetic conductivity to increase the eddy current effect.

The lens 2 can adopt quartz glass, is provided with the ultraviolet ray filter disc in the lens 2 outside, and the ultraviolet ray filter disc mainly used draws the ultraviolet ray in the bow net arcing, and quartz glass has extremely low coefficient of thermal expansion, high temperature resistance, fabulous chemical stability, good electrical insulation nature, and quartz glass can play further filtering action to the ultraviolet ray simultaneously. Peripheral circuit that ultraviolet arcing sensor connects includes the power module, voltage regulation and stabilization module, central processing unit and data interface, the power module is used for providing the power, the input of voltage regulation and stabilization module is connected in the power module, the input of voltage regulation and stabilization module is connected with the feeder ear of ultraviolet detecting tube 3 and central processing unit's feeder ear, the input communication interface 112 of signal processing module connects, the output of signal processing module is connected with central processing unit's input, data interface's input is connected with central processing unit's input, data interface's output and external communication equipment are connected.

The implementation principle of the first embodiment of the application is as follows:

with casing 1 fixed mounting on the roof, make camera lens 2 aim at the arcing detection department of pantograph, be used for supplying power to ultraviolet detecting tube 3 through wire and power source 111 connection with the power module, the ultraviolet ray that pantograph bow net arcing produced sees through ultraviolet ray filter and camera lens 2 and reachs ultraviolet detecting tube 3 departments, ultraviolet detecting tube 3 changes the ultraviolet ray signal into the signal of telecommunication and spreads this signal of telecommunication through communication interface 112, through setting up shielding housing 1, near the strong voltage of receiving the electricity has been reduced, strong magnetic field is to the interference of ultraviolet detecting tube 3, the detection precision of sensor has been guaranteed, the convenient effect that detects pantograph net arcing has been reached simultaneously.

Example two:

referring to the figure, this embodiment and embodiment one difference lie in, are provided with the buckler on casing 1, and the buckler includes two split type concatenation covers 4, and concatenation cover 4 and casing 1 sliding connection have all seted up through wires hole 41 on the border that two concatenation covers 4 are close to each other, and fixed being provided with the rubber layer on the inside wall of through wires hole 41, two concatenation covers 4 pass through the bolt and can dismantle the connection. The two splicing covers 4 are separated, the data transmission line connected with the signal processing module is connected with the communication interface 112, the power supply line connected with the power module is connected with the power interface 111, the data transmission line and the power supply line respectively penetrate through the threading holes 41, then the two splicing covers 4 are spliced and connected through bolts, the effect of sealing the communication interface 112 and the power interface 111 is achieved, and the sensor is not easily influenced in rainy days; because the rubber layer can take place deformation, consequently can be sealed the clearance between wire and the inside wall of through wires hole 41 for during rainwater weather, the difficult power interface 111 and the communication interface 112 department of getting into of rainwater from passing hole 41. Meanwhile, the train carriage may cause vibration of the sensor located on the train roof 01 when running at high speed, the shape of the splicing cover 4 can be matched with the data line connector and the power supply line connector, and the splicing cover 4 can be enabled to have an abutting limiting effect on the plug wire end of the power supply line and the plug wire end of the data transmission line, so that the plug wire end and the data transmission line end of the power supply line are not easily and unstably plugged with the power interface 111 and the communication interface 112, and the working stability of the sensor is improved.

When the housing 1 is mounted on the roof 01, in order to align the lens 2 with the detection position of the pantograph 012 and the contact network, referring to fig. 3 and 4, in the embodiment of the application, the housing 1 is provided with the insertion rod 5, the roof 01 is fixedly connected with the mounting seat 011, and the insertion rod 5 is inserted and matched with the mounting seat 011. When installing casing 1 on roof 01, at first with the fixed setting on roof 01 of mount pad 011, through the angle and the position that set up of mount pad 011 for behind the cooperation of pegging graft pole 5 and mount pad 011, camera lens 2 can aim at the check point on the pantograph 012 promptly, then can dismantle the connection through the bolt with the mount pad 011 with peg graft pole 5, has reached the effect that conveniently aims at camera lens 2 and check point department fast.

Referring to fig. 4, the exhaust valve 113 is disposed on the housing 1, and the housing 1 is evacuated by the evacuation device, which is beneficial to ultraviolet light propagation in the housing 1, improves ultraviolet light propagation reliability, and further improves detection reliability of the sensor. Simultaneously in order to improve the detection security of sensor when rainy day, this application embodiment two is provided with lightning-arrest module in casing 1, and lightning-arrest module passes through the wire and realizes electrical connection with power module, and lightning-arrest module has lightning-arrest effect, has prevented that the detector from being struck by lightning and causing the damage.

The implementation principle of the second embodiment is as follows:

when the sensor is installed, the installation seat 011 is preset, after the insertion rod 5 is inserted into the installation seat 011, the lens 2 can be aligned with a detection point on the pantograph 012, and then the insertion rod 5 is fixedly connected onto the insertion seat through a bolt; with two splice covers 4 separation, insert the wire of signal processing module input connection and establish on communication interface 112, insert the wire of voltage regulation and stabilization module output connection and establish on power source 111, then be close to two splice covers 4 each other, the wire passes through wires hole 41 after the concatenation this moment, and the rubber layer is extruded, then passes through bolt fixed connection with two splice covers 4.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An ultraviolet arcing sensor, comprising: including casing (1), camera lens (2) and ultraviolet detecting tube (3), install on casing (1) camera lens (2), ultraviolet detecting tube (3) are fixed to be installed in casing (1), ultraviolet detecting tube (3) are relative with camera lens (2), casing (1) are the metal shielding body, install power source (111) and communication interface (112) on casing (1), the power supply end and the power source (111) of ultraviolet detecting tube (3) are connected, the output and the communication interface (112) of ultraviolet detecting tube (3) pass through the wire and are connected.

2. The ultraviolet arcing sensor of claim 1, wherein: a protective cover (121) is fixedly arranged on the outer side of the lens (2).

3. The ultraviolet arcing sensor of claim 1, wherein: conductive paint is coated on the outer side wall of the shell (1).

4. The ultraviolet arcing sensor of claim 1, wherein: an ultraviolet light filter is arranged on the outer side of the lens (2).

5. The ultraviolet arcing sensor of claim 1, wherein: the shell (1) is vacuum, and an exhaust valve (113) is arranged on the shell (1).

6. The ultraviolet arcing sensor of claim 1, wherein: be provided with the buckler on casing (1), the buckler includes two split type concatenation covers (4), and concatenation cover (4) and casing (1) sliding connection have all seted up through wires hole (41) on two relative borders of two concatenation covers (4), and connection can be dismantled through the bolt to two concatenation covers (4).

7. The ultraviolet arcing sensor of claim 6, wherein: a rubber layer is fixedly arranged on the inner side wall of the threading hole (41).

8. The ultraviolet arcing sensor of claim 1, wherein: the automobile roof is characterized in that a plug rod (5) is arranged on the shell (1), a mounting seat (011) is fixedly connected to the automobile roof (01), the plug rod (5) is in plug fit with the mounting seat (011), and the mounting seat (011) is detachably connected with the plug rod (5) through bolts.