Abstract: A range hood, includes a fan system (2), the fan system (2) having a volute (21) and an impeller (22); the volute (21) includes a front cover (211), a rear cover (212) and an annular wall (213); the annular wall (213) has a volute tongue (214); the front cover (211) has an air inlet (215), the air inlet (215) faces downward to make the range hood to be a horizontal range hood; the volute tongue (214) is gradually inclined from the rear cover (212) to the front cover (211) in a direction opposite to the rotation direction of the impeller (22).

Abstract: The present invention discloses a control panel mechanism of a range hood. The control panel mechanism comprises a glass panel (1) and a control component (2), a plurality of mounting plates (4) each having two ends are disposed on the back of the glass panel (1), one end of each mounting plate (4) is connected to the control component (2) by a plurality of first fasteners (6); the mounting plates (4) are detachably connected to a front side plate (31) of a housing (2) of the range hood, and the mounting plates (4) is attached to a top plate (32) of the housing (2) by a second fastener (7). So that it is very convenient to assemble and disassemble the control component.

Abstract: A fan system is provided, which includes a volute having a front cover, a rear cover and an annular wall connected between the front cover and the rear cover; an impeller disposed inside the volute, and a motor; the front cover has an air inlet facing downward in the state when the fan system is mounted; the motor includes a motor body and an edge; the edge is connected to the rear cover at the side of the rear cover facing the air inlet. A range hood equipped with the fan system and a mounting method for a flow guide device of the range hood are provided.

Abstract: A range hood, includes a fan system (2), the fan system (2) having a volute (21) and an impeller (22); the volute (21) includes a front cover (211), a rear cover (212) and an annular wall (213); the annular wall (213) has a volute tongue (214); the front cover (211) has an air inlet (215), the air inlet (215) faces downward to make the range hood to be a horizontal range hood; the volute tongue (214) is gradually inclined from the rear cover (212) to the front cover (211) in a direction opposite to the rotation direction of the impeller (22).

Abstract: The present invention discloses fan system, which includes a volute having a front cover, a rear cover and an annular wall connected between the front cover and the rear cover: an impeller disposed inside the volute, and a motor; the front cover has an air inlet facing downward in the state when the fan system is mounted; the motor includes a motor body and an edge; the edge is connected to the rear cover at the side of the rear cover facing the air inlet. The present invention further discloses a range hood equipped with the fan system and a mounting method for the flow guide device.

Abstract: The present invention discloses a panel mechanism of a range hood. The range hood comprises a left side plate (3), a right side plate (4), and a plurality of hanging pieces (5); the panel mechanism comprising a panel (1) and a panel frame (2), the panel frame (2) comprises a center plate (20), a left hanging bar (21), a right hanging bar (22) and a support bar (26), the left hanging bar (21) and the right hanging bar (22) has a plurality of hanging slots (23,24), each hanging slot (23,24) engages one hanging piece (5); the first hanging slot (23) is bent backward from the top to the down; and the second hanging slot (24) is sloped backward from the top to the down; the opening of each of the first hanging slot (23) and the second hanging slot (24) is bigger than the inner end of the first hanging slot (23) and the second hanging slot (24), enabling the first hanging slot (23) and the second hanging slot (24) to be hung on the corresponding hanging pieces (5) more easily.

Abstract: A wind outlet mechanism for a range hood comprises a wind outlet and a decorative cover. The decorative cover has a plurality of wind discharge holes, a flow guide member is disposed inside the decorative cover, and the flow guide member has a cambered flow guide surface opposite to and protruding toward the wind outlet. The flow guide surface can make the air flow discharged from the wind discharge holes on the decorative cover.

Abstract: The present invention discloses sequence encryption for refactoring a reconstructed-key: a set of compound logic is used to construct a chaotic computing structure to realize chaotic bit-segment stream sequence encryption. In the present invention, the chaotic computing structure is used to dispatch a bit fetching logic, a bit metabolic logic, a bit reconstruction logic and other computing logic units to pseudo-randomly refactor a construct source and a drive source segment by segment and the drive source is used to pseudo-randomly control the construct source to refactor key bit segments bit by bit so as to construct an infinite non-looping regenerated key bit segment sequence that “a picked construct source bit from staggered positions can be non-metabolized and from duplicated positions must be metabolized”.

Abstract: The present invention discloses a panel mechanism of a range hood. The range hood comprises a left side plate (3), a right side plate (4), and a plurality of hanging pieces (5); the panel mechanism comprising a panel (1) and a panel frame (2), the panel frame (2) comprises a center plate (20), a left hanging bar (21), a right hanging bar (22) and a support bar (26), the left hanging bar (21) and the right hanging bar (22) has a plurality of hanging slots (23,24), each hanging slot (23,24) engages one hanging piece (5); the first hanging slot (23) is bent backward from the top to the down; and the second hanging slot (24) is sloped backward from the top to the down; the opening of each of the first hanging slot (23) and the second hanging slot (24) is bigger than the inner end of the first hanging slot (23) and the second hanging slot (24), enabling the first hanging slot (23) and the second hanging slot (24) to be hung on the corresponding hanging pieces (5) more easily.

Abstract: The present invention discloses a control panel mechanism of a range hood. The control panel mechanism comprises a glass panel (1) and a control component (2), a plurality of mounting plates (4) each having two ends are disposed on the back of the glass panel (1), one end of each mounting plate (4) is connected to the control component (2) by a plurality of first fasteners (6); the mounting plates (4) are detachably connected to a front side plate (31) of a housing (2) of the range hood, and the mounting plates (4) is attached to a top plate (32) of the housing (2) by a second fastener (7). So that it is very convenient to assemble and disassemble the control component.

Abstract: The present invention discloses a range hood, during work, when the smoke deflector is opened to a maximum angle, a plurality of points fitting with a Fibonacci spiral line are arranged on a vertical section along the center of the rotary shaft of the motor, a starting point of the Fibonacci spiral line is arranged on an inner surface of the front plate below the air inlet, a top arc line at the top of the air-intake ring, a bottom arc line at the bottom of the air-intake ring are respectively tangent to a curve with a radius of Fibonacci sequence Fn-1, and an endpoint of the free edge of the smoke deflector coincides with an endpoint of a curve with a radius of Fibonacci sequence Fn. In the present invention, the smoke can more smoothly enter a smoke trapping cavity of the range hood. A sufficient residence space is provided for a large amount of smoke generated by the stove, and smoke is effectively prevented from escaping from the smoke trapping cavity.

Abstract: The present invention discloses a smoke filter device, which comprises a plurality of oil filter sections (10), each oil filter section (10) has at least two filter holes (11); and in the two adjacent two filter holes (11), an area defined by the filter hole (11) near the at the end of the oil filter section (10) is smaller than an area defined by the filter hole (11) near the middle portion of the oil filter section (10). The present invention also discloses to a range hood with the smoke filter device. In the present invention, without changing the overall air volume, the suction force of the filter holes at the end of each oil filter section is increased, so that the smoke can be further prevented from escaping to the surrounding.

Abstract: A wind outlet mechanism for a range hood comprises a wind outlet and a decorative cover. The decorative cover has a plurality of wind discharge holes, a flow guide member is disposed inside the decorative cover, and the flow guide member has a cambered flow guide surface opposite to and protruding toward the wind outlet. The flow guide surface can make the air flow discharged from the wind discharge holes on the decorative cover.

Abstract: Disclosed is a random binary sequence-based sequence encryption method accompanied with random reconfiguration of a key.

Abstract: Disclosed is a random binary sequence-based sequence encryption method accompanied with random reconfiguration of a key.

Abstract: The present invention discloses a smoke filter device, which comprises a plurality of oil filter sections (10), each oil filter section (10) has at least two filter holes (11); and in the two adjacent two filter holes (11), an area defined by the filter hole (11) near the at the end of the oil filter section (10) is smaller than an area defined by the filter hole (11) near the middle portion of the oil filter section (10). The present invention also discloses to a range hood with the smoke filter device. In the present invention, without changing the overall air volume, the suction force of the filter holes at the end of each oil filter section is increased, so that the smoke can be further prevented from escaping to the surrounding.

Abstract: The present invention discloses a range hood, during work, when the smoke deflector is opened to a maximum angle, a plurality of points fitting with a Fibonacci spiral line are arranged on a vertical section along the center of the rotary shaft of the motor, a starting point of the Fibonacci spiral line is arranged on an inner surface of the front plate below the air inlet, a top arc line at the top of the air-intake ring, a bottom arc line at the bottom of the air-intake ring are respectively tangent to a curve with a radius of Fibonacci sequence Fn-1, and an endpoint of the free edge of the smoke deflector coincides with an endpoint of a curve with a radius of Fibonacci sequence Fn. In the present invention, the smoke can more smoothly enter a smoke trapping cavity of the range hood. A sufficient residence space is provided for a large amount of smoke generated by the stove, and smoke is effectively prevented from escaping from the smoke trapping cavity.