7results about How to "Reduce the effective area" patented technology

The invention discloses a surface cleaning device with good decontamination effect, comprising a floor brush with a roller brush, the floor brush is provided with a decontamination device abutting against the roller brush, the decontamination device comprises a scraping piece, a combing piece located below the scraping piece, the combing piece is provided with a plurality of comb teeth and a connecting portion extending from the comb teeth to the lower surface of the scraping piece, the connecting portion abuts against the lower surface of the scraping piece, the comb teeth and the connecting portion form a front combing surface, the front combing surface abuts against the roller brush, the scraping piece extends in the direction of the roller brush over the front combing surface, the liquid flow scraped by the scraping piece forms a filling area between the connecting portion and the lower surface of the scraping piece, the liquid flow in the filling area gathers and increases pressure to flush the gap between the comb teeth. The surface cleaning device not only has a good effect in treating general garbage, but also does not leave entangled objects such as hair on the roller brush, does not require customers to manually clean the roller brush, has high dirt suction efficiency, good dirt suction effect, is more intelligent and humane, and has a good customer experience.

The application discloses an air conditioner wind shielding structure, which comprises a wind shielding component and a driving component. The wind shielding component is arranged corresponding to an air outlet of the air conditioner. The wind shielding component comprises a plurality of wind shielding pieces arranged coaxially, and the wind shielding pieces are rotationally connected with each other. The driving component comprises a driving source and a rotating shaft. The wind shielding pieces are rotationally arranged on the rotating shaft. The driving source drives each wind shielding piece to rotate, so that the wind shielding pieces can coincide with or separate from each other. The angle of each wind shielding piece can be adjusted to adjust the wind speed and direction during air supply, different air supply requirements can be met, the comfort of air supply is improved, and the air conditioner is suitable for household and vehicle air conditioners.

The present invention discloses a surface cleaning device with good dirt suction effect, comprising a dirt suction fan and a floor brush provided with a roller brush, the floor brush being provided with a dirt suction port facing the roller brush, a comb tooth member with multiple comb teeth and a scraper, the comb tooth member and the scraper respectively abut against the roller brush to scrape off dirt on the surface of the roller brush, the dirt suction fan sucks away the scraped dirt / dirty liquid through the dirt suction port, the comb tooth member extends downward from the top outer side of the dirt suction port to the dirt suction port to partially cover the dirt suction port to increase the suction pressure, and at the same time the comb teeth guide the sucked dirt or dirty liquid toward the dirt suction port, most of the dirty liquid and dirt sucked from the surface to be cleaned to the dirt suction port as well as entangled objects such as hair can easily enter the dirt suction port, the dirt suction effect is good, the dirt suction efficiency is high, thereby bringing a good experience to customers.

The present invention relates to the technical field of ammonia recovery and treatment, and specifically to a spray-type ammonia water absorption tower. It includes an absorption tower and a spray assembly. The bottom end of the absorption tower is provided with a drain pipe, the top end of the absorption tower is provided with an exhaust port, the bottom fixed sleeve of the absorption tower is provided with an annular cover, a first mixing chamber is formed in the annular cover, a jet pump that passes into the first mixing chamber is fixedly provided on the annular cover, an annular baffle is provided in the first mixing chamber, an overflow channel is formed between the top of the annular baffle and the top wall of the annular cover, an annular baffle extending downward is provided at the bottom end of the absorption tower, the annular baffle is spaced inside the annular baffle, a conical cover is provided inside the bottom end of the annular cover, and a second mixing chamber is formed between the outer wall of the conical cover and the inner wall of the annular baffle. The jet pump of the present invention injects the mixture into the first mixing chamber, and gradually increases the absorption rate of ammonia through different mixing chambers, while preventing the bubbles generated by the jet pump from carrying ammonia to escape.

The invention relates to the technical field of infrared optical lenses, in particular to an infrared optical lens for image matching. According to the infrared optical lens for image matching, in a limited space range, a four-piece structure is adopted, germanium and chalcogenide glass are matched, an aspheric surface and a diffraction surface are adopted to complete optical passive athermalization from-45 DEG C to + 80 DEG C, f is 4.5 mm, D / F is 1.0, a 640 * 512 and 12-micron detector is adapted, the field angle 2w is 95.2 degrees, and distortion is controlled within 3%.

The present application relates to filter press technical field, specifically to a kind of variable attitude filter plate assembly for filter press, including fixed plate, multiple filter plates and connecting unit, multiple the filter plate is arranged in the side of the fixed plate, each the filter plate is respectively through the connecting unit with the fixed plate movable connection, to make each the filter plate can be converted between vertical attitude and inclined attitude relative to the fixed plate;When the driving unit drives each the filter plate mutually away and forms second state, each the filter plate switches to inclined attitude, the spacing between adjacent filter plate increases, and the filter surface of each the filter plate is inclined relative to vertical direction, solved the existing filter press unloading cake because of the strong adhesion between mud cake and filter plate and lead to unloading cake not completely, need manual cleaning problem.

The present invention provides a packaging structure and a packaging method for a high-voltage power semiconductor chip. The packaging structure for the high-voltage power semiconductor chip comprises a substrate; a high-voltage power semiconductor chip located on a portion of a collector conductive layer and electrically connected to the collector conductive layer, wherein an emitter of the high-voltage power semiconductor chip is electrically connected to the emitter conductive layer; a collector lead-out terminal located on the collector conductive layer and electrically connected to the collector conductive layer; an emitter lead-out terminal located on the emitter conductive layer and electrically connected to the emitter conductive layer; the collector lead-out terminal comprises a first section, the emitter lead-out terminal comprises a second section arranged opposite to the first section, the first section is recessed toward the emitter lead-out terminal, and / or the second section is recessed toward the collector lead-out terminal; and a first insulating filling layer between the first section and the second section. The packaging structure has a relatively small parasitic inductance and is therefore suitable for packaging high-voltage power semiconductor chips.