1.?Do You Know About EE Vertical Bobbin?? ? ?EE type vertical bobbin is a common inductance transformer bobbin, which is used with EE type magnetic core. According to the use of different requirements, it can be processed for vertical (2+2), vertical (3+3), vertical (4+4), vertical (5+5) and so on. Also we can design and produce all kinds of magnetic cores and electronic components according to your special requirements. It has the characteristics of convenient wire-wrapping, large wire-wrapping space and low price. It is widely used in energy-saving lamps, household appliances and other electronic equipment. Our products are mainly sold to Taiwan、South Asia 、Europe and America and other area.
1. Do You Know About EE Vertical Bobbin?
EE type vertical bobbin is a common inductance transformer bobbin, which is used with EE type magnetic core. According to the use of different requirements, it can be processed for vertical (2+2), vertical (3+3), vertical (4+4), vertical (5+5) and so on. Also we can design and produce all kinds of magnetic cores and electronic components according to your special requirements. It has the characteristics of convenient wire-wrapping, large wire-wrapping space and low price. It is widely used in energy-saving lamps, household appliances and other electronic equipment. Our products are mainly sold to Taiwan、South Asia 、Europe and America and other area. Take EE 8.3V bobbin as an example:
(1) PIN NO. : 3:3P
(2) PIN PITCH: 2.5
(3) ROW PITCH: 6.0
(4) PIN DIAMETER: φ0.5
THE FOLLOWING IS A DATA TABLE ABOUT ALL THE SPECIFICATIONS OF EE VERTICAL BOBBIN.
2. What Plastic Is The Bobbin of The Electronic Transformer Made of?
1). NYLON (NYLON): White and transparent, with a certain degree of water absorption, oil resistance, toughness, good ductility, not fragile, but easy to melt under heat, winding deformation, temperature resistance is usually around 110 degrees, fire protection grade is 94V-2 or 94V-HB, voltage resistance is 27KV/mm, its surface is smooth; affected by the above characteristics, nylon materials are usually used to make low-frequency transformers with low winding requirements, or more common coil inductors.
2). PBT: generally white, brown or beige, relatively good toughness, temperature resistance around 120 degrees, easily deformed after heating (hot deformation temperature 205 degrees), fire protection grade is 94V-0, the insulation performance of this material is better, its voltage resistance is 22KV/mm, its surface is not smooth; affected by the above characteristics, this material is mainly used for production. Small and medium-sized transformers or inductors with relatively small wire diameters are cheap, easy to purchase and low manufacturing costs, which are suitable for mass production.
3). PET: Usually black, easy to melt, toughness is general (slightly better than nylon), easy to form, temperature resistance is about 130 degrees, not easy to deform after heating (hot deformation temperature 246 degrees), fire protection grade is 94V-0, the insulation performance of this material is slightly worse than PBT, voltage resistance is 18 kV/mm, its surface is not smooth, can be used for. High-frequency transformer skeleton, inductance shell, etc., price slightly higher than PBT.
4). LCP: Usually beige, it is a kind of liquid crystal polymer. It is a kind of material between PET and bakelite. It has good hardness and toughness. Typical materials such as E-4008 have good dimensional stability, creep resistance, very low thermal expansion coefficient and very high thermal deformation temperature of 313 degrees. Dielectric properties are mostly used to make SMD transformers in the field of transformers. The flame retardant grade is 94V-0, but the price is expensive.
5). Bakelite (PHENOLIC): Usually black, is the most commonly used high-quality raw material for transformer skeleton, such as Changchun T373J, T375J, Sumitomo PM9820, PM9630, etc. The material is brittle and fragile, the fire grade is 94V-0, especially high temperature (370 degrees), voltage resistance is about 10KV/mm, the surface is smooth; it can be said that bakelite is. Transformer bobbin winder, transformer bobbin wiki, transformer winding bobbin. Transformer is the most used material because it has high temperature resistance, no distortion, medium voltage resistance, suitable for large and medium-sized power transformers, but fragility is one of its shortcomings, it is inevitable, and this kind of material can not be recycled and reused. Bobbin power transformer, pulse transformer bobbin, rm7 transformer bobbin .
3. Three Materials for Transformer Bobbin
Flame retardant PP: White, this material is cheap and not easy to crack. The disadvantage is poor heat resistance.
Flame-retardant PBT: White, high temperature resistance, tin drum on tin, skeleton will not deform. The bobbin made of this material will not deform and the size will not be deviated. The defect is that the material is brittle and the bobbin is easy to crack.
Flame-retardant nylon: translucent, heat-resistant, tin drum on the tin, bobbin will not deform, not easy to crack.
4. Production Phase of Bobbin
1). Injection Molding
The process is to inject molten bakelite and plastic materials into the cavity of the skeleton mould through the pressure of the injection moulding machine at high temperature. After certain moulding and cooling time, the skeleton is separated from the mould through the ejection system. The key points of the process control are the temperature and pressure at the time of injection, as well as the ratio of recycled materials in plastic materials. The change of ejection temperature and pressure will certainly affect the change of basic size, strength and characteristics of the product, and the change of the thickness of the edge. The thickness of the edge will also directly affect the operation of the next process. Transformer bobbin suppliers in mumbai, transformer split bobbin, transformer bobbin tape, toroidal transformer bobbin. This process can be imported by PQC into SPC to monitor these changes, so as to find out the changes as soon as possible and make corresponding adjustments as soon as possible, so as to ensure the quality of products. The finished mould needs to be cleaned up and maintained in time to prolong the service life of the mould and bring more benefits to the enterprise.
2). Edge treatment
This process is mainly aimed at the bakelite skeleton. In order to discharge the gas produced in the forming process smoothly, we need to add an exhaust slot on the die. The fused raw materials are filled with the exhaust slot under the action of high pressure. Therefore, we need to use the wool edge processor to process the wool edge through the characteristic process. In wool edge control, we need to measure the size of the product to determine whether the size of the stock price is affected by the thickness of the wool edge. In addition, we usually judge whether the wool edge can be treated cleanly by the transparency of the wool edge.
In the process of edge treatment, we should choose the size of sand according to the structural characteristics of the product, such as the size of the line groove and the strength of the product blade. Otherwise, sand grains will be stuck in the crossing slot to obstruct the copper wire, or stuck in the pinhole to affect the next pin insertion process. After inserting the needle, try not to do the edge treatment, otherwise it will affect the verticality of the pin.
For plastic products, only through manual processing. SMD type bakelite products can be processed by tunnel-type edge first, and then manually remove the edges adhering to the terminals.
3). Pin insertion
Pin insertion, also known as planting PIN, is a process of making scroll-type wire, which passes through the whole line, dotting and cutting tools of pin insertion machine successively. At the same time, the product is sent to the base by the runway and feeding rod. The base moves upward through the pin insertion machine device to cooperate with the cutting tools. The pin after being cut will be cut at this time. It is inserted into the corresponding pinhole of the product.
5. Technical Characteristics of High Frequency Transformers
Because the measurement or monitoring parameters of intelligent components are more extensive, the control process is networked, and the switching and closing operations of switchgear are also carried out. Network-based control is implemented for equipment or components with control requirements. For example, high frequency transformer cooler and on-load tap-changer. Tbi transformer bobbin, transformer bobbins uk, transformer bobbin winding calculation, bobbin wound transformer. So that the control strategy can rely on more abundant information, and thus achieve more ideal control requirements. The control objects include transformer cooling device, on-load tap-changer, switchgear operating mechanism, etc.
In the design concept of intelligent high-voltage equipment, the necessary sensors and actuators should be integrated in the high-voltage equipment according to the specific intelligent objectives, so the implantation of sensors and actuators should be considered at the design stage of high-voltage equipment. Another aspect of functional integration is the integrated manufacturing technology of primary electrical parameter measuring device and high voltage equipment such as transformer. The integrated design can ensure the reliability of high voltage equipment and the sensitivity of sensors.
The measurement or monitoring parameters in intelligent components become more extensive, which enriches the information on which the control strategy can depend, so that more ideal control requirements can be achieved. The control objects include transformer cooling device, on-load tap-changer, switchgear operating mechanism, etc.