Fire alarm circuit and device
A technology of an alarm circuit and an alarm device, applied in the electronic field, can solve problems such as fire, laboratory fire, fire, etc., and achieve the effect of avoiding losses
Inactive Publication Date: 2015-05-27
OCEANKING DONGGUAN LIGHTING TECH +2
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Problems solved by technology
[0002] Today's lighting development is getting faster and faster, and product quality is closely related to product reliability. Therefore, it is necessary to meet the use of the product in different environments, and different tests will be carried out on the product, such as high temperature test and high temperature accelerated life test. , thermal shock and other environmental stress tests, and during the high-temperature accelerated life test process, the product will be placed in the incubator. The temperature of the incubator may be set at any temperature between 40-100 degrees for high-temperature aging, or through high-temperature The accelerated life test calculates the life of the product at room temperature to improve the reliability of the product. Some plastic parts need to be baked at a high temperature of 100-400 degrees in different ambient temperatures. If the staff on duty in the laboratory cannot find that the sample is on fire in time, the sample may burn out the thermostat, and it may also cause the entire laboratory to catch fire, causing a fire.
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[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0037] See figure 1 , is a structural schematic diagram of a fire alarm circuit provided by an embodiment of the present invention. The fire alarm circuit may include: a transformer T, a bridge stack BD, a gas sensor G, a first sliding rheostat R2, a second sliding rheostat R3, a diode D1, resistor R1, transistor Q1, alarm SP;
[0038] The transformer T is connected to the gas sensor G through the bridge stack BD;
[0039] One end of the gas sensor G is grounded ...
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The embodiment of the invention discloses a fire alarm circuit and device. The fire alarm circuit comprises a transformer T, a bridge rectifier BD, a gas-sensitive sensor G, a first sliding rheostat R2, a second sliding rheostat R3, a diode D1, a resistor R1, a triode Q1 and an alarm SP. Through the fire alarm circuit and the fire alarm device, in case of a fire, the gas-sensitive sensor G senses smoke to timely trigger the alarm SP to make an alarm sound so as to inform users.
Description
technical field [0001] The invention relates to the field of electronic technology, in particular to a fire alarm circuit and device. Background technique [0002] Today's lighting development is getting faster and faster, and product quality is closely related to product reliability. Therefore, it is necessary to meet the use of the product in different environments, and different tests will be carried out on the product, such as high temperature test and high temperature accelerated life test. , thermal shock and other environmental stress tests, and during the high-temperature accelerated life test process, the product will be placed in the incubator. The temperature of the incubator may be set at any temperature between 40-100 degrees for high-temperature aging, or through high-temperature The accelerated life test calculates the life of the product at room temperature to improve the reliability of the product. Some plastic parts need to be baked at a high temperature of...
Claims
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IPC IPC(8): G08B17/10
CPCG08B17/10
Inventor 周明杰胡波
Owner OCEANKING DONGGUAN LIGHTING TECH