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The existing various types of conventional insulating glass, once the production process is completed, the relevant performance indicators such as light transmittance and shading coefficient are fixed. These conventional insulating glass, which belongs to static control performance, are used as doors and windows or curtain wall glass for construction to face the ever-changing natural environment, and there will be many shortcomings.

To better solve these problems, there are three development directions: one is to add various accessories on the inner and outer sides of the hollow glass doors and windows for energy saving or dimmings, such as outdoor sun visors and sunshades, and various indoor curtain. The second is to add various adjustable curtains in the hollow glass, such as Venetian blinds and pleated blinds. The third is to make functional glass with adjustable properties, such as photochromic, thermochromic, and electrochromic glass into the hollow glass.

Judging from the current market conditions, the first method has a very long history of use and has been widely used. Although these structures have many characteristics, it has become increasingly difficult to meet the needs of modern life. Due to the non-standard structure, the second method has a high cost, low reliability, and limited market promotion and acceptance. The third method can be said to be the development direction of architectural glass, but it cannot be promoted and applied at least due to cost and other reasons.

Magnetron Rolled Film Type Insulating Glass is a product with "new functions". Its basic structure belongs to the second form, and its function is just between the second and the third. It not only retains the advantages of both but also avoids their shortcomings. In the future, it will become the main development form of energy-saving and dimming of insulating glass.

The magnetically controlled roll-film insulating glass 1

The magnetically controlled roll-film insulating glass 1

The basic structure and control form of magnetically controlled roll-film insulating glass

Magnetron roll film type insulating glass is mainly composed of conventional hollow glass and magnetron roll film components (mainly including magnetic non-contact transmission control structure, film winding drive mechanism, and various polyester-based selective light transmission functions Film) consists of two parts.

The assembled magnetron film module is enclosed in the conventional hollow glass, and the power is input through the magnetic non-contact transmission system outside the conventional hollow glass to drive the expansion or contraction of the film with different selective light transmission functions inside the conventional hollow glass. To achieve the purpose of controlling the heat insulation or dimming function of conventional insulating glass.

When working, when the outer magnetic body outside the conventional insulating glass is rotated by pulling the zipper outside the conventional insulating glass or the motor is used to drive the outer magnetic body outside the conventional insulating glass, the magnetic non-contact transmission system directly drives the inner magnet sealed inside the conventional insulating glass to rotate, and at the same time drives the fixation. The reel outside the inner magnet rotates to achieve the purpose of shrinking or unwinding the film.

The magnetron roll film module is mainly designed for the existing conventional insulating glass, without changing the existing conventional insulating glass production process, without changing the inner and outer dimensions of the existing conventional insulating glass, and without changing the installation and fixing of the existing conventional insulating glass profiles. It does not increase the adjustment range of conventional insulating glass in terms of heat insulation, light transmission, and sight shielding.

The magnetron roll film module has a simple structure and can be installed in various rectangular plane conventional hollow glass with an internal gap greater than 6 mm. The thickness of the film, the diameter of the reel, and the diameter of the magnetic body in the reel are restricted in the control film component.

Because the magnetic levitation technology is also used in the magnetically controlled roll-film insulating glass, the slender reel is in a straight state during operation and the need for large-size conventional insulating glass is ensured.

Among the many key structures of the magnetically controlled roll-film insulating glass, after domestic and foreign patent searches and market surveys, no similar products or structures have been found. At present, these technologies or basic structures have been applied for international invention patents and have been approved. It has also applied for U.S. and European patents, among which U.S. patents have been published.

When the external magnetic parts are driven by a motor, various remote control, group control, and intelligent control can be easily realized through different control methods, which can better meet the basic requirements of modern buildings for building glass in terms of intelligence.

In addition, since the roll film is made of polyester film as the base material, it has excellent anti-aging properties. At the same time, all power sources are outside the conventional hollow glass, and the inner rotating shaft of the conventional hollow glass is driven to rotate by a magnetic field without any intermediate transmission parts so that the system has good interchangeability and high reliability.

The polyester film of insulating glass 1

The polyester film of insulating glass 1

Since this product does not have national standards or other related standards, to ensure the production and quality of magnetron-rolled insulating glass products, Legolas is responsible for the production and inspection standards of the "Magnetic-controlled Rolled Film for Insulating Glass". , It was formally approved by International Municipal Quality and Technical Supervision Bureau and implemented as an enterprise standard.

We sent the magnetron-rolled insulating glass sample to the International Product Quality Supervision and Inspection Institute for testing. After 100,000 continuous windings, the film and the entire magnetic non-contact transmission mechanism have no failure or damage. If the average rolling film cycle is counted three times per day, it can work for 100 years without damage, and its working life is much longer than the sealing working life of any existing insulating glass.

Magnetron roll film type insulating glass-related performance analysis   

When doing the following analysis, first assume two basic conditions:

(1) The production process and technical requirements of the hollow glass equipped with the magnetron roll film module are the same as those of the conventional hollow glass.

(2) The insulating glass equipped with the magnetron roll film module is the same as the glass material used in the conventional insulating glass.


About the next article, the features and applications of magnetically controlled roll-film insulating glass②, we will continue to introduce more details.


For more information about Jinan LIJIANG Glass insulating glass processing equipment and insulating glass processing accessories, please click here to learn more. 

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