Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Visual magnetically-controlled switch

A technology of magnetic control switch and reed switch, which is applied in the direction of magnetic switch, magnetic/electric field switch, electric switch, etc., which can solve the problems of normal production and operation constraints, short service life, and easy corrosion of industrial and mining enterprises, and reduce detection operations Quantity and cost of material and spare parts, detection error probability reduction, and strong sealing and waterproof performance

Inactive Publication Date: 2015-07-15
NANJING MEISHAN METALLURGY DEV +1
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. The magnetic control switch on the market is packaged in a metal or completely opaque plastic shell. The state and position of the internal reed switch are invisible and cannot be observed directly. It is inconvenient for installation, adjustment, and correction of the switch position. Instruments must be used or repeated on-site tests Adjustment to determine whether the final fixed position and switch status are normal or not, which brings great inconvenience to maintenance and installation, and at the same time inevitably affects the smooth and orderly production of the main body
[0007] 2. The existing magnetic control switch products available in most markets have certain limitations on the use environment
Taking our mine as an example, the underground environment is relatively humid, especially the inner wall of the shaft seepage is as serious as rain, and the switch with poor sealing has a high failure rate. After installation and use, it is found that the adaptability is insufficient.
[0008] 3. The magnetic control switch encapsulated by the metal is easy to corrode and oxidize, resulting in weakened magnetic induction force, decreased sensitivity and even failure
The traditional metal fixing screw is easy to rust for a long time after installation. Once it fails, it is extremely difficult to disassemble and replace, and the operation is time-consuming and labor-intensive. At the same time, the metal shell is easily magnetized due to long-term magnetization, causing the switch to malfunction due to severe residual magnetism and can only be scrapped.
However, some products packaged in plastic shells have the problem of insufficient extrusion impact resistance.
[0009] 4. At present, the market provides mature magnetic control switch products that can be selected. In order to control the production cost and reduce the difficulty of production, all of them adopt the method of only packaging a single reed switch inside, so the common problem is that the magnetic field is small and the detection distance is short. The hidden danger of failure or misdetection of the only reed switch contact cannot be effectively prevented. Once the only single reed switch inside is damaged or fails, it must be replaced as a whole, so the relatively short service life and insufficient reliability
[0010] 5. The cost of a single switch is high, and the purchase price is expensive
[0011] 6. There is a long supply cycle for similar products in the purchase market. For production units equipped with large-area magnetic switches for electrical automatic control, the stage of high equipment failures will inevitably be affected by the limited amount of spare parts in stock. It is inevitable for the normal production and operation of industrial and mining enterprises. subject to its constraints

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Visual magnetically-controlled switch
  • Visual magnetically-controlled switch
  • Visual magnetically-controlled switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The technical solutions provided by the present invention will be described in detail below in conjunction with specific examples. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0036] Such as figure 1 Shown is a schematic diagram of the structure of the reed switch in the present invention when it is connected in parallel, which is used to detect the magnetic control switch for the parking position of the hoist, so as to prevent abnormal operation caused by undetected; the present invention is a visible magnetic control switch, including an external tube Shell 1, reed switch 2 and wire 3.

[0037] The outer casing 1 is a transparent plexiglass tube filled with epoxy resin; one end of the outer casing 1 is sealed with a rubber insulating self-adhesive tape 4 , and the other end is sealed with epoxy resin.

[0038] The number of reed swi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a visual magnetically-controlled switch. The visual magnetically-controlled switch comprises an outer tube, two reed switches and leads, wherein the outer tube is a transparent organic glass tube with two ends sealed, and the outer tube is filled with epoxy resin; the two reed switches are connected with the leads respectively and mutually connected in the outer tube. The switch has the inner visual performance and can perform visual operation, so that the switch state is distinguished more conveniently, and hidden danger is discovered more directly; the switch is free of rust, easy to dismount and high in seal and waterproof performance and has very high applicability to severe environments of shafts under mines; the magnetizing range is wide, the detection accuracy and the action sensitivity are high, and the detection error probability is greatly decreased; the switch is simple to produce, short in molding cycle and low in production cost.

Description

technical field [0001] The invention belongs to the field of electrical control equipment, and in particular relates to a visible magnetic control switch applied in a mine hoisting system. Background technique [0002] Magnetic switch, also known as proximity switch or reed switch, uses a reed switch as the main component, and uses magnetic induction force to drive the reed switch to open and close by electric shock, so as to realize the control of the electric control line, and is widely used in electrical control. Compared with the early limit switch, it has the characteristics of small size, light weight, long life, no spark at the contact point, strong resistance to load impact, etc., and has high working reliability. It is a non-contact switch. Type fully enclosed detection switch, there are many types of products in the market, mainly used as proximity sensors, and widely used in home appliances, automobiles, communications, industry, medical, security and other field...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01H36/00
CPCH01H36/0073
Inventor 陈金锋葛义俊
Owner NANJING MEISHAN METALLURGY DEV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products