Title:
MINIATURE SMOKE ALARM
Document Type and Number:
WIPO Patent Application WO/2018/227897
Kind Code:
A1
Abstract:
A miniature smoke alarm, comprising: a base (1) and a cover body (13) which moves along the axial direction of the base (1); a side wall of the cover body (13) is provided with a smoke inlet hole (5) that allows smoke to enter into a detecting portion (2); an elastic portion (6), which drives the cover body (13) by means of elastic action to move away from the base (1), is provided between the cover body (13) and the base (1); a limiting portion (7), which, by means of the action of abutment, prevents the cover body (13) from being separated from the base (1), is provided between the cover body (13) and the base (1); a first button (41), which is triggered by means of the movement of the cover body (13) in the direction toward the base (1), is provided at a side of a control circuit board (4) facing the base (1), the first button (41) controlling the testing and shutting down of the smoke alarm; a detecting unit (2) and a sounding unit (21) are electrically connected to a power supply within the base (1). By means of such a manner, a user may stop the smoke alarm from beeping and test the smoke alarm; smoke alarms configured in such a manner are relatively small, and, by adopting a manner of triggering the cover body (13), the area of the cover body (13) occupies more than 90% of the orthogonal projection area of the base (1), thus facilitating the user stopping the smoke alarm from beeping and testing the smoke alarm.
Inventors:
LIU YUNBIAO (CN)
Application Number:
PCT/CN2017/114341
Publication Date:
December 20, 2018
Filing Date:
December 02, 2017
Export Citation:
Assignee:
SUZHOU PRIMETECH ELECTRONICS CO LTD (CN)
International Classes:
G08B29/12; G08B17/10
Foreign References:
| CN107093307A | 2017-08-25 | |||
| CN202093644U | 2011-12-28 | |||
| CN205263988U | 2016-05-25 | |||
| CN105160797A | 2015-12-16 | |||
| JP2010033238A | 2010-02-12 | |||
| CN105931416A | 2016-09-07 | |||
| CN204303115U | 2015-04-29 | |||
| CN102754136A | 2012-10-24 |
Other References:
See also references of EP 3640904A4
Attorney, Agent or Firm:
BEIJING WEIZHENG PATENT AGENCY CO., LTD. (CN)
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