Title:
TIMER FOR PREVENTING HEATING WITHOUT WATER
Document Type and Number:
WIPO Patent Application WO/2022/021460
Kind Code:
A1
Abstract:
A timer for preventing heating without water, comprising: a WiFi receiver (5), a button (6), a first signal plate (7), a second signal plate (8), a third signal plate (14), a first relay (9), a second relay (10), and a third relay (15). The first signal plate (7) receives a signal input by the WiFi receiver (5) or a pulse signal sent by manually pressing the button (6); the first signal plate (7) transmits the signal to the second signal plate (8); the second signal plate (8) transmits the signal to the third signal plate (14), the first relay (9), and the second relay (10), separately; the first relay (9) and the second relay (10) control the turning on or off of a water pump; the third signal plate (14) transmits the signal to the third relay (15); the third relay (15) controls the turning on or off of a heating device; when the first relay (9) and the second relay (10) turn on the water pump, the third relay (15) turns on the heating device; and the third relay (15) turns off the heating device within time T1 before the first relay (9) and the second relay (10) turn off the water pump.
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Inventors:
WEN YI (CN)
Application Number:
PCT/CN2020/106852
Publication Date:
February 03, 2022
Filing Date:
August 04, 2020
Export Citation:
Assignee:
NINGBO HAPPY ELECTRICAL CO LTD (CN)
International Classes:
G05B19/042; E04H4/12
Foreign References:
| CN212302263U | 2021-01-05 | |||
| CN204041327U | 2014-12-24 | |||
| CN203051072U | 2013-07-10 | |||
| CN2858352Y | 2007-01-17 | |||
| CN111006398A | 2020-04-14 | |||
| CN109874163A | 2019-06-11 |
Attorney, Agent or Firm:
JIANGSU KUNCHENG LAW FIRM (CN)
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