2results about How to "No shadow" patented technology

The application discloses a back contact film-coated battery string, a plurality of film pieces, a plurality of battery pieces and a plurality of welding strip groups, the back light surfaces of the plurality of battery pieces are connected in series along a first direction through the plurality of welding strip groups, the plurality of film pieces are covered on the back light surfaces of the plurality of battery pieces, and the area of the film piece is greater than the area of the covered battery piece. The technical scheme can solve the problem that in the EL detection of the back contact film-coated battery string, the side edges of each battery piece in the back contact film-coated battery string are not fixed by the adhesive film, and the corresponding area in the image formed by the electroluminescence is prone to appear shadow, thereby causing the poor EL detection effect.

The application discloses a kind of visual detection device and detection method of TR fabric high color fastness padding product, it is related to visual detection technical field, including visual detection device, and visual detection device includes unwinding unit, dark box and winding unit, the inside of the dark box is provided with positioning mechanism for the fabric of detection position is positioned, positioning mechanism includes: negative pressure unit, is set to the inside of dark box, by setting positioning mechanism, effectively solve the soft TR fabric in open detection area due to tension fluctuation and residual deformation and lead to the problem of bulging, warping.Negative pressure unit in the suction pump operation, negative pressure is generated in the inside of negative pressure box, and uniform adsorption force is generated to the air-permeable fabric body through the round hole on its top.Meanwhile, negative pressure box is equipped with several partition plates and is divided into multiple independent negative pressure chambers, and the size of negative pressure is adjusted by the electromagnetic valve installed on branch pipe, so that fine control of fabric tension is realized.