Abstract
Current smart locks have several drawbacks - the smart locks are large and thick, and have an unappealing visual appearance; need periodic battery replacement; are inoperable when the battery is being replaced and can cause users to be locked out; have an environmental impact due to large battery; and can suffer from battery performance in low temperature conditions, which reduces the usable runtime. This disclosure describes a smart doorbell and smart lock powered and charged by a home doorbell transformer. The power path to the smart lock is through a smart doorbell that includes a controller. The smart lock has via pogo pins (built into the strike plate slot) that contact a pad (built into the end of the dead bolt) such that the power path is established when the deadbolt is engaged/ extended into the strike plate slot while in the locked position. Alternatively, wireless charging can be used to charge the smart lock. A heating element can also be provided that maintains a normal battery temperature in extreme cold weather conditions. The availability of wired charging enables the use of a smaller battery in the smart lock, reducing environmental impact, improving availability, and can enable the smart lock to support advanced power-hungry features.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Wang, David; Lim, Jimmy; and Rao, Arun, "Smart Lock Battery Charging via Wired Smart Doorbell", Technical Disclosure Commons, (June 28, 2024)
https://www.tdcommons.org/dpubs_series/7145