Changjing Electronic has ten years of professional production line experience, technology and resources, we have a wide range of market resources.Adhering to the concept of honest cooperation and win-win future, we have established a good relationship of mutual trust with our customers.In the field of industry, we have their own unique advantages, complete production equipment, advanced testing equipment, can satisfy the small quantity, many orders, especially the field of high-end wire, we are committed to PCB cables, artificial intelligence equipment, medical equipment, aerospace field, high temperature and high pressure resistance, oil resistance, waterproof, and other products, can meet various end products demand under extreme working conditions.The main customers we serve are also well-known domestic and international customers, who are in the leading or advanced positions in their respective industries, with their own brands and patents.
We will, as always, pursue the quality idea of dignity and life, abide by the industry standard, provide better service for more customers and solve more problems.
In order to standardize production, reasonably control materials, reduce material inventory, and accurately warn production demand, the company decided to import the ERP system in June 2018.
After three months 'efforts, Changjing Electronic successfully imports the ERP system in September, and established a basic and perfect BOM table combined with the company's actual products.
Two months of practice and application, the company's overall logistics is smooth, material and finished product inventory has been greatly reduced, and the production plan and material demand have been made according to the order requirements.
The successful introduction and application of ERP enables us to transform the manufacturing field from the past rough manual workshop mode to the standard modern enterprise operation mode.
As the construction of new rural areas began to expand, the government has expressed support for the new energy industry, so solar street lights have also been widely used in rural road lighting.
The solar street light is powered by a crystalline silicon solar cell. The maintenance-free valve-regulated sealed battery (colloidal battery) stores electrical energy. The ultra-bright LED lamp is used as a light source and is controlled by an intelligent charge and discharge controller to replace the traditional utility lighting. Street light. No need to lay cables, no AC power supply, no electricity charges; DC power supply, control; good stability, long life, high luminous efficiency, easy installation and maintenance, high safety performance, energy saving, economical and practical. Can be widely used in urban main, secondary roads, residential areas, factories, tourist attractions, parking lots and other places. The light pole structure of the product parts: steel light pole and bracket, the surface is sprayed, and the battery board is connected with special anti-theft stainless steel screws.
Solar cell modules generally use monocrystalline silicon or polycrystalline silicon solar cell modules; LED lamp heads generally use high-power LED light sources; controllers are generally placed in the light poles, with light control, time control, overcharge and over discharge protection and reverse connection protection, The advanced controller has four seasons to adjust the lighting time function, half power function, intelligent charging and discharging function, etc.; the battery is generally placed underground or there will be a special battery incubator, which can be a valve-regulated lead-acid battery or a gel battery. Iron-aluminum battery or lithium battery. Solar lamps work fully automatically, no need to dig trench wiring, but the pole needs to be installed in the embedded parts.
Advantages of solar street lights:
1. Energy saving: providing energy by solar photovoltaic conversion, inexhaustible and inexhaustible;
2. Environmental protection: no pollution, no noise, no radiation;
3. Safety: There are no accidents such as electric shock or fire;
4. Convenience: The installation is simple, there is no need to wire or “open the belly” to dig the ground construction, and there is no power outage and power limitation;
5. Long service life: The product has high technology content, and the control system and accessories are international brands, intelligent design, and reliable quality;
6. High grade: technology products, green energy, the use of units attaches importance to science and technology, green image improvement, grade upgrade;
7. Less investment: one-time investment and alternating current equivalent (alternative power investment from substation, power, control box, cable, engineering), one investment, long-term use;
8. Wide application: Solar energy comes from nature, so all places with sunshine can be used, especially suitable for green landscape lighting, high-end residential and outdoor lighting, tourist attractions, coastal landscape lighting and embellishments, industrial development zones, industrial and mining enterprises street lamps , outdoor lighting in major universities.
Related reading:8W Solar street light, 30w Led Solar Street Light
Zheng Zhihua once sang such a song: "The stars light up my door, let the lost children find the way to come; the stars light up my future, warm the child's heart with a little light ̇ ̇ ,", in the past The night is coming, the street has no lighting facilities, and the light from the stars is like lighting a light, illuminating the way forward for the people who travel.
At night, all kinds of lights are lingering, and the night is not the night, and the lights are shining like the daytime. Of course, the lights here are not from the stars in the sky, but from the street lamps standing on both sides of the road.
The streetlight is now very close to us, but it rarely pays attention to it until it is suddenly filled with darkness, and everyone pays attention.
Today we are talking about street lamps and talking about the most used solar street lights around us.
When we were young, we often saw this sentence in textbooks. "Our clothes and food are inseparable from the sun, and the sun gives us light and heat." This is true, the sun has given people a lot of things, and people are constantly developing and utilizing the sun. Because of the sun, there are many solar water heaters, solar power plants, solar water pumps, solar street lights, and so on.
Solar street lights, as the name suggests, consist of solar energy and lights, and more specifically should consist of three major system components: battery board, battery, and controller. In contrast, the system composition of solar street lights is much more complicated. The main light source used for solar street lamps is LED, DC energy-saving lamps, DC gas discharge lamps and electrodeless lamps.
In the past, taking the western power resources scarce area as an example, most rural power supply users are far away from the power grid, and the residents are scattered, while the construction cost of high-voltage power transmission is 10-13 thousand yuan per kilometer, which leads to high cost of erecting power supply lines. The power supply of the power grid is mainly used to meet the living and production electricity consumption of rural residents, the most important of which is lighting, small household appliances, and agricultural irrigation. For the public facilities such as road lighting, with or without, with the maturity of solar photovoltaic power generation technology, solar photovoltaic power generation in many places is regarded as the best way to solve the problem of rural power generation.
Related reading: Integrated LED Solar Street Light, Luminous Solar Street Light
In order to solve quality problems such as surface cutting of special wire and scratch of copper wire, and to better serve customers, the company increased investment in production equipment and purchased modern automatic wire processing machine.
Recently, we bought an automatic machine that works at the same time with the industry's leading double-end peeling, winding and soldering.The equipment has strong comprehensive function, stable quality and high efficiency, and effectively solved the processing problems of special wire such as aviation wire,teflon wire and three-layer insulation wire.The peeling size of the product can be controlled within 1~2MM, with even tin on the surface and no knife mark or scratch on the surface. The productivity is greatly improved, which makes our production capacity go to a new level.
High insulation wire, high temperature resistant wire and special wire requirements are products that our company has been proud of for many years.We have a strong mission to solve problems for our customers, and a beautiful vision of win-win cooperation.
Therefore, we have strict product testing standards and purchased advanced testing equipment.Among them, high-definition microscopes are our best weapon for detecting special wires, which we call the company's eyes.Due to the very small diameter (26awg-36awg) of the wire we produced, it is a fully automatic cutting and cutting machine. It is impossible to know whether the insulation layer of the wire is scratched or cut or not, and only under the observation of the microscope can it maintain the stability of product quality.If the insulation layer of the wire is damaged, it will not be able to withstand high pressure testing and may even be broken through on the end product.If the wire has cut mark, welding high temperature will directly cause the wire to break, if there is no break, it is also a huge hidden danger.Therefore, all of our products have been tested under the microscope and passed the inspection before being delivered to the customer.
We believe that with the guarantee of quality standards, you can surely obtain more reliable products and services, and solving your problems is our greatest achievement.
With the progress of science and technology, intelligent and technological products have been widely used in our life, and our common mobile phones and computers are indispensable tools in our daily life.You will find USB cable is very important.However, you may not know that there are many types of USB cables.Why is this? As it turns out, they each serve different functions, mainly to preserve compatibility and support new devices.
Now, we will introduce the main USB cables as follows:
(1)Description and definition
Triple insulated wire is a high-performance insulation wire, the wire has three insulation layer, the copper wire, is among the first layer is a golden brown polyamine thin film, the thickness of a few microns, but affordable 2 KV pulse high voltage, the 2nd is high insulation paint coating, the third layer is transparent nylon modified glass fiber layer, the total thickness of insulating layer is only 20-100 um, its advantage is high dielectric strength, between any two layer can withstand the safety of the ac 2000 voltage, electric current density.The advancement in order to reduce transformer weight and volume.
(2)Scope of application:
1.This standard is applicable to high-frequency high-voltage winding wire, referred to as high-frequency wire.
2.This standard stipulates the product technical requirements, inspection rules and packaging of high-frequency wires.
3.Different insulation layer material is suitable for different occasions, such as the insulation layer is ETFE fluron resistance, due to high temperature resistance and high insulation, and is widely used in high-frequency transformers, computer power supply, mobile phone charger;Insulation layer PFA&ETFE, used in communication, transformer insulated wire and magnetic components.
(3)Notes:
1. Storage and use environment.Three layers of insulated wire storage conditions is the environment temperature is 25 ~ 30 ℃, relative humidity is 5% ~ 75%, the retention period is one year.It is forbidden to store three layers of insulated wires in the environment of high temperature, high humidity, direct sunlight and dust.For three-layer insulated wires that exceed the shelf-life, the insulation breakdown voltage, withstand voltage and winding property must be re-tested before they can be used.
2. Precautions during winding.(1) three layers of insulation wire is to rely on the film to strengthen the insulation.If the film is subjected to mechanical stress or thermal stress and serious deformation, damage, umbrella safety standards can not be guaranteed.(2) transformer skeleton must not have burr, contact wire corner part to be smooth (forming chamfer).The inner diameter of the outlet nozzle shall be 2-3 times the outer diameter of the conductor.(3) cut the end of the wire is very sharp, do not close to the wire film.
3.Method of stripping the capsule.Special equipment such as three-layer insulated wire stripping machine and adjustable film stripping machine should be used to peel the film.It is characterized by melting the coating on one side and stripping on the other side, so the wire will not be damaged.If the ordinary wire stripping machine is used to remove the insulation film, the wire may be stretched thin or even broken.
4.Welding device.There are two devices for welding three layers of insulated wire.A static type soft solder groove, suitable for welding Φ 0.40 mm below the three layers of insulation.When brazing, move horizontally in the solder groove and vibrate the coil frame (as shown in the right picture) to complete the welding work in a short time.In order to prevent the film from melting due to long-time immersion in the solder groove, the method of repeating 2-3 times welding is also adopted.The other welding device is a jet solder groove with air cooling, which can weld multiple coil frames at the same time and is suitable for mass production.
(4)Parameter table
Xiamen Changjing Electronic Technology CO., LTD has an imported production line, which can produce two or three layers of insulated wire according to the requirements. The color can also be red, yellow, blue, green and other products selected by users in accordance with UL and VDE safety regulations, ROHS and REACH halogen free requirements.
Network cable is a common wire in our daily life, generally used network cable has five categories, super five categories, six categories, super six categories and seven categories of network cable. So many kinds of network cable, how should we go distinguishing? Now let us introduce the types of network cables and their differences.
1.CAT1: mainly used for voice transmission (class a standard is mainly used for telephone cables before the early 1980s). Different from data transmission, it has been eliminated by the standard.
2.CAT2: 1MHZ transmission bandwidth is used for voice transmission and data transmission with a maximum transmission rate of 4Mbps, which is commonly used in the old Token Ring using 4Mbps standard Token transfer protocol and has been eliminated by the standard.
3. CAT3: the transmission bandwidth of this cable is 16MHz, which is used for voice transmission and data transmission with the maximum transmission rate of 10Mbps. It is mainly used for 10BASE--T, and is regarded as the lowest use grade by ANSI/ tia-568.c.
4. CAT4: the transmission bandwidth of this type of cable is 20MHz, which is used for voice transmission and data transmission with the maximum transmission rate of 16Mbps. The cable is mainly used for token-based LAN and 10base-t / 100base-t, which has been eliminated by the standard.
5. CAT5: this type of cable increases the winding density and has a transmission bandwidth of 100MHz. It is used for voice transmission and data transmission with a maximum transmission rate of 100Mbps.
6. CAT5E: it has low attenuation and less crosstalk. Compared with five-class line, it increases the test requirements of near-end crosstalk power and noise.The maximum bandwidth of the superquintuple is 100MHz.
7. CAT6: the transmission bandwidth of this type of cable is 250MHz, and the comprehensive attenuation cross talk ratio (ps-acr) of the six types of cabling system at 200MHz should have a large amount of allowance, which provides twice as much bandwidth as that of the over five types.The transmission performance of the six types of cabling is much higher than that of the super five standards, which is most suitable for the application with a transmission rate of 1Gbps.One important difference between the six classes and the super five classes is that they improve the performance in crosstalk and return loss. For the new generation of full-duplex high-speed network applications, excellent return loss performance is extremely important.
8. CAT6E: super six line is an improved version of the six line, released in 2008, is also ANSI/ tia-568c.2 and ISO/IEC 11801 super six line /EA level standards specified in a twisted pair cable, mainly used in the million bit network.The transmission frequency is 500 MHz, and the maximum transmission speed can reach 10Gbps, which is greatly improved in external crosstalk and other aspects.
9.CAT7: this cable is a twisted-pair cable approved in 2002 in ISO/IEC 11801 class 7 /F standard, which is mainly used for the application and development of ten-gigabit Ethernet technology.But it is no longer a non-shielded twisted pair, but a shielded twisted pair, so it can transmit at least 600 MHz at a rate of 10 Gbps.
Xiamen Changjing Electronic Technology CO., LTD. founded in 2008, is a company specializing in the production of domestic power cable, control cable, full range of low voltage cables, computer cables, rubber sets of cables, control SYV coaxial cable, shielded cable, flame retardant, refractory and other special cable 20 categories, more than 5000 kinds of specifications, widely used in electric power, metallurgy, petroleum, chemical industry, defense, power stations, coal mining, transportation, ports, construction and other industries for many years enjoyed a high reputation in the user.
Today, electrical products more and more in our life, in order to better use electricity, to the requirement of the wire is also rising, and at the same time in order to ensure the security of home life, when decorate must choose the quality of wire and cable, although at present our country cable technology already quite mature, but for many, the product knowledge is still a stranger Let's talk a little bit about common sense cables.
Single core cable: a single conductor in an insulating layer.It's common on the BV line.B stands for category, wiring;V stands for insulation: polyvinyl chloride.It is suitable for cables and wires used in power plants, household appliances, instruments and telecommunication equipment with ac voltage up to and including 450/750v.
Rubber sheathed wire and cable: suitable for transmission and distribution of coal mining machines and high-power mobile equipment with rated voltage up to and including 6/10kv.
Shielding control cable: suitable for ac rated voltage 450/750v and below the connection of electrical instruments and automatic control system transmission line.With oil resistance, water resistance, wear resistance, acid and alkali resistance and various corrosive gases, aging resistance, non-combustion and other excellent performance, suitable for metallurgy, power, petrochemical and other industries.
Flame retardant and fire-resistant cable: refers to the cable that can extinguish itself in a limited time after the sample is burned under specified test conditions and the flame spread only within a limited range after the fire source is removed.The basic characteristics are: in the case of fire may be burned out and not be able to run, but can prevent the spread of the fire.Generally speaking, in case of a fire, the wire can be limited to the combustion in a local scope, do not produce spread, keep other various equipment, to avoid greater losses.
A variety of cables is used in industrial settings for networking, power transmission, and communication. Coaxial, data, and instrumentation cables are some of the most common designs you will find. These low-voltage cables are usually rated for 2,000 V or less to distribute power, but medium-voltage designs reaching up to 35,000 V can be used if a facility has some responsibility for its utility use.
Low-voltage cables are usually constructed with copper or aluminum conductors, in either single or multi-conductor strands, bundles or braids. They are also available in flat constructions, including Flexx-Sil, Polytetrafluoroethylene (PTFE) and molded materials. Their construction usually features shielding, tough jacketing, insulation and fillers to withstand high mechanical loads, speeds and accelerations, as well as harsh environments both indoors and outdoors. These cables supply temporary dc or ac power to generators and motors on machines like conveyors, machine tools, robotics, and other large machinery.
Industrial power and data cables must often operate in tight spaces and may even be flexing and moving on a regular basis. To prevent wear and tear caused by these severe conditions, they must have bending radii ranging anywhere from 5 to 15 times the overall cable diameter. To prevent cracking, flexible jacketing materials, such as TPE, PCV, and CPE, should be used. Flat cables are ideal for flexing and tight designs and usually have a high EMI/RFI suppression rate.
Industrial cables can be utilized in a variety of ways, from open-air installations to direct-bury and in cable carriers and conduit and more. Finally, ensure all cables in your application meet the right approvals for its place of manufacture, such as the National Electrical Code (NEC), UL, CE, RoHS, and CSA, among others.
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