US 12,480,617 B1
Negative pressure suction-based fixing device
Rufeng Yang, Guangdong (CN)
Assigned to SHENZHEN LISEN INTELLIGENT CO., LTD., Shenzhen (CN)
Filed by SHENZHEN LISEN INTELLIGENT CO., LTD., Guangdong (CN)
Filed on Jan. 26, 2025, as Appl. No. 19/037,210.
Application 19/037,210 is a continuation of application No. PCT/CN2024/095032, filed on May 23, 2024.
Int. Cl. F16M 13/02 (2006.01); F16B 47/00 (2006.01); H02J 7/00 (2006.01); H02J 7/35 (2006.01); H02S 40/38 (2014.01)
CPC F16M 13/022 (2013.01) [F16B 47/00 (2013.01); H02J 7/0029 (2013.01); H02J 7/35 (2013.01); H02S 40/38 (2014.12)] 14 Claims
OG exemplary drawing
 
1. A negative pressure suction-based fixing device, comprising:
a housing having an accommodating cavity thereinside;
a suction and holding member configured to be suctioned onto a suction surface and having a suction cavity at its end remote from the housing, the suction cavity being in communication with the accommodating cavity and configured to cooperate with the suction surface to form an enclosed space;
a negative pressure creating assembly configured to generate negative pressure in the accommodating cavity so as to create negative pressure in the enclosed space;
a solar panel mounted on the housing and configured to convert solar energy into electrical energy, with a light absorbing surface that is at least partially exposed through the housing;
a battery configured to supply power to the negative pressure creating assembly and be capable of storing the electrical energy converted by the solar panel;
a charging interface configured to connect with an external power supply to supply power to the battery;
a first charging circuit configured to connect to the solar panel and having a first switching unit that has one end connected to the solar panel and another end connected to the battery;
a second charging circuit configured to connect to the external power supply and having a second switching unit that has one end connected to the external power supply and another end connected to the battery; and
a comparator having a first input end connected to the first charging circuit, a second input end connected to the second charging circuit, and an output end configured to output a comparison result, such that the first switching unit and the second switching unit are each responsive to the comparison result of the comparator to be in an on or off state.