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Resistance detection system and method

A technology of resistance detection and resistance measurement, which is applied in the direction of measuring resistance/reactance/impedance, measuring devices, measuring electrical variables, etc., and can solve problems such as insufficient heater consistency and difficult heater temperature control

Active Publication Date: 2022-02-11
SHENZHEN ROYAL TOBACCO IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual production process, the consistency of the heater is not high enough, so that the characteristics of the temperature coefficient of resistance of each heater are different, which brings difficulties to the temperature control during the use of the heater

Method used

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  • Resistance detection system and method
  • Resistance detection system and method
  • Resistance detection system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] see figure 1 and figure 2 In the resistance detection method of the present embodiment, the detection object is an independent heater 500 not connected to the control board. The resistance detection system includes a temperature detection unit 100, a power supply 200, a resistance measurement unit 300, and a control unit 400. The detailed process is as follows:

[0064] 1) Fix the heater 500, for example, use the fixing unit 510 to limit the distance d between the heater 500 and the temperature detection unit 100 to an appropriate range, preferably the heater 500 is just positioned at the smallest spot of the infrared temperature sensor 110 to place the heater The lead wire of 500 is connected to the positive and negative poles of the input port of the power supply 200, and the resistance measurement unit 300 retrieves the power supply data of the heater 500 from the power supply 200. Therefore, the detection of the heater 500 by the resistance measurement unit 300 als...

Embodiment 2

[0069] see figure 1 and image 3 In the resistance detection method of the present embodiment, the detection object is a semi-finished electric heating appliance, the semi-finished electric heating appliance is a heater 500 connected to a control board 600, and the resistance detection system includes a temperature detection unit 100, a resistance measurement unit 300, and a control unit 400 . A power supply 200 , the resistance measuring unit 300 is integrated in the control board 600 electrically connected with the heater 500 .

[0070] The detailed process is as follows:

[0071] 1) Fix the semi-finished electric heating appliance, for example, use the fixing unit 510 to limit the distance d between the heater 500 and the temperature detection unit 100 to an appropriate range, preferably the heater 500 is just at the smallest spot of the infrared temperature sensor 110. Connect the lead wire of the control board 600 to the positive and negative poles of the input port of ...

Embodiment 3

[0076] see figure 1 and Figure 4 In the resistance detection method of this embodiment, the detection object is a finished electric heating appliance, which includes a heater 500, a control board 600, a battery 200, a casing 700, and the like. The resistance detection system includes a temperature detection unit 100, a resistance measurement unit 300, a control unit 400, and a power supply 200. The resistance measurement unit 300 is integrated in the control board 600 electrically connected to the heater 500. The power supply 200 directly uses the finished electric heating The battery 200 of the appliance, the control unit 400 includes a first control subunit and a second control subunit, the first control subunit and the second control subunit are connected in communication, and the first control subunit is integrated in In the control board 600 , the second control subunit communicates with the temperature detection unit 100 .

[0077] The detailed process is as follows: ...

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Abstract

The present application relates to the field of heat-not-burn technology, in particular to a heater resistance detection system and method. The resistance detection system includes a temperature detection unit, a power supply, a resistance measurement unit, and a control unit. Since the resistance value of the heater continues to increase or decrease with the increase of temperature, the heater reaches the preset value when the heater is powered. The resistance value also increases or decreases to a target value when the temperature is high, and the resistance detection system of the present invention obtains and records the target value under the condition of simultaneously detecting the temperature and resistance of the heater for subsequent heating control. Preferably, one control unit is connected to multiple temperature detection units and resistance measurement units at the same time, so as to realize batch detection of heaters.

Description

technical field [0001] The present invention relates to a resistance detection system and a resistance detection method for a heater. Background technique [0002] Low-temperature heated tobacco, also known as heat-not-burn tobacco, is more common in the form of cigarettes, but unlike traditional cigarettes that burn to produce smoke, low-temperature heated tobacco designed with the idea of ​​"heat-not-burn" can heat the tobacco leaves just enough To the extent that it emits flavor without lighting the tobacco leaves, the harmful substances in first-hand and second-hand smoke are greatly reduced. PCT / EP2010 / 006598 discloses a smoking system in which the heater comprises a plurality of conductive tracks on an electrically insulating substrate which is rigid and arranged to be inserted into the aerosol-forming lining In the bottom, the conductive traces have a temperature coefficient of resistance characteristic that enables the plurality of conductive traces to function as b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R27/02
CPCG01R27/02A24F47/00
Inventor 陈斌林晓航欧阳杰毛虹懿廖振龙林永辉吴扬
Owner SHENZHEN ROYAL TOBACCO IND LTD