Thick film heater and dry burning identification method thereof
A technology of thick film heater and identification method, which is applied to water heaters, fluid heaters, lighting and heating equipment, etc., can solve the problems of heater over-temperature damage, water leakage, structural parts damage, etc.
Pending Publication Date: 2019-08-16
佛山市知一科技有限公司
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[0002] The dry burning protection method of the thick film heater is generally implemented by using a thermistor plus a temperature controller (temperature fuse). The heater thermistor is used to directly sense the temperature of the heater. When the temperature exceeds the set value, the dry Burning protection, but the temperature response speed of the existing thermistor and thermostat lags behind the temperature rise speed of the thick film heater dry burning, when the temperature control protection, the actual temperature of the thick film heater has far exceeded the protection If the temperature is too high, it is easy to cause damage to the structural parts, and even the heater is damaged by overheating, causing problems such as odor, water leakage, and failure to work.
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[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings, wherein the same components are represented by the same reference numerals. It should be noted that the words "front", "rear", "left" and "right" used in the following description ", "upper" and "lower" refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.
[0015] In order to make the content of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.
[0016] combined with Figure 1-3 , a thick film heater, comprising a thick film heater body 1, the inside of the thick film heater body 1 is provided with a flow channel cavity 8, and the thick film heater body 1 i...
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The invention discloses a thick film heater and a dry burning identification method thereof. The thick film heater comprises a thick film heater main body; a runner cavity is formed in the thick filmheater main body; a heating circuit is arranged on the thick film heater main body along the runner cavity; a water inlet nozzle is arranged at one end of the runner cavity, and a water outlet nozzleis arranged at the other end; a power supply joint is arranged at one end of the thick film heater main body; the thick film heater main body is provided with a water outlet temperature thermosensitive resistor and a heater thermosensitive resistor; and the water outlet temperature thermosensitive resistor and the heater thermosensitive resistor are connected with an external electric control board through the power supply joint. The dry burning of the thick film heater by 3-4 seconds can be identified to achieve the power failure; at this time, the temperature of the thick film heater is nothigher than 150 DEG C, so that the effective safety protection is achieved; and when the thick film heater normally works, as flowing water loads exist in the runner cavity, the temperature differencebetween the water outlet thermosensitive resistor and the heater thermosensitive resistor is not higher than 25 DEG C, and the dry burning protection method cannot influence normal work of the heater.
Description
technical field [0001] The invention relates to the technical field of heaters, in particular to a thick-film heater and a dry-burning identification method thereof. Background technique [0002] The dry burning protection method of the thick film heater is generally implemented by using a thermistor plus a temperature controller (temperature fuse). The heater thermistor is used to directly sense the temperature of the heater. When the temperature exceeds the set value, the dry Burning protection, but the temperature response speed of the existing thermistor and thermostat lags behind the temperature rise speed of the thick film heater dry burning, when the temperature control protection, the actual temperature of the thick film heater has far exceeded the protection If the temperature is too high, it is easy to cause damage to the structural parts, and even the heater is damaged by overheating, causing problems such as odor, water leakage, and failure to work. Contents of...
Claims
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Login to view more IPC IPC(8): F24H1/10F24H9/18F24H9/20
CPCF24H1/101F24H9/1818F24H9/2028
Inventor 黄健
Owner 佛山市知一科技有限公司
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