KR102637957B1 - Heat source movement detection structure of portable heating equipment - Google Patents

Abstract

The present invention relates to a structure capable of detecting the movement of a heat source in a portable heating device. More specifically, the present invention relates to a structure capable of detecting the movement of a heat source in a portable heating device, and more specifically, to install a plurality of sensing members with a temperature coefficient of resistance (TCR) in the duct-shaped combustion part of the portable heating device. It is about a technology that can detect the movement of a heat source when an unexposed heating element combusts. The heat source movement detection structure of a portable heating device according to an embodiment of the present invention includes a combustion unit in the form of a pipe into which a heating element is inserted and heated; A plurality of sensing members provided in the pipe, spaced apart from each other, connected in series, and having a temperature coefficient of resistance; An amplifier connected in series with a plurality of sensing members; A booster connected to one sensing member among a plurality of sensing members connected in series; It includes a control unit connected between the amplifier and the booster.

Description

Heat source movement detection structure of portable heating equipment {HEAT SOURCE MOVEMENT DETECTION STRUCTURE OF PORTABLE HEATING EQUIPMENT}

The present invention relates to a structure capable of detecting the movement of a heat source in a portable heating device. More specifically, the present invention relates to a structure capable of detecting the movement of a heat source in a portable heating device, and more specifically, to install a plurality of sensing members with a temperature coefficient of resistance (TCR) in the duct-shaped combustion part of the portable heating device. It is about a technology that can detect the movement of a heat source when an unexposed heating element combusts.

In general, the technology for measuring temperature in heating devices uses a temperature sensor using metal resistance, and measures the temperature of the surface on which a temperature sensor consisting of a single pattern is installed or the temperature of a heating element near the temperature sensor, but a pipe in which the heating element is not exposed. It is not possible to detect the location of the heat source that moves when heated within. For example, as an example of a portable heating device, a cigarette is inserted into a pipe and burned in a portable ashtray that doubles as a lighter. Technology that can detect the movement of the heat source is needed to control the extinguishing position of the cigarette within the pipe. As an example of a portable heating device, a portable ashtray that doubles as a lighter disclosed in Korean Patent Publication No. 10-1938741 includes an ignition unit (10) including a lighter (12) and a ventilation hole (11) formed on the upper surface; A cigarette insertion member 21 is coupled to one side of the ignition unit 10, supports the filter part of the cigarette to be exposed to the outside and allows the cigarette to be inserted inside, and is connected to one end of the cigarette insertion member 21 to provide elastic force. A suction part (20) including a spring (24) that provides; and an ashtray unit 30 that is detachably coupled to the other side of the ignition unit 10 and accommodates the combustion unit of the cigarette to accommodate cigarette ash generated from the combustion unit of the cigarette during smoking. In the above-mentioned portable ashtray that doubles as a lighter, there is no disclosure regarding technology that can detect the heat source moving as the cigarette is burned. In the present invention, the heat source is defined as the area with the highest temperature in the pipe of the portable heating device.

Republic of Korea Patent Publication No. 10-1938741

The purpose of the present invention is to provide a structure that can detect the movement of a heat source when a heating element combusts within the pipe of a portable heating device.

The heat source movement detection structure of a portable heating device according to an embodiment of the present invention includes a combustion unit in the form of a pipe into which a heating element is inserted and heated; A plurality of sensing members provided in the pipe, spaced apart from each other, connected in series, and having a temperature coefficient of resistance; An amplifier connected in series with a plurality of sensing members; A booster connected to one sensing member among a plurality of sensing members connected in series; It includes a control unit connected between the amplifier and the booster.

Additionally, a plurality of sensing members are installed on the outer surface of the combustion unit in the form of a pipe.

Additionally, a plurality of sensing members are installed on the inner surface of the combustion unit in the form of a pipe.

In addition, the plurality of sensing members are made of metal wire with a high temperature coefficient of resistance and are wound and installed on the outer surface of the combustion section in the form of a pipe.

In addition, the plurality of sensing members are made of a metal pattern with a high temperature coefficient of resistance and are installed on the inner side of the pipe-shaped combustion section or the outer side of the pipe-shaped combustion section by printing, attaching, or inserting.

In addition, the plurality of sensing members are made of metal wire with a high temperature coefficient of resistance, and the number of turns installed on the outer surface of the pipe-shaped combustion section is different.

Additionally, the plurality of sensing members are made of metal patterns with a high temperature coefficient of resistance, and at least one of the pattern width and pattern thickness is different from each other.

In addition, it has base registers installed on one side and the other side of the combustion section in the form of a pipe, and each base register is connected to a control unit.

Additionally, the control unit and booster are connected through I2C communication.

Additionally, the control unit and booster are connected through GPIO communication.

In addition, between the control unit and the booster, there is provided a plurality of FETs connected to the control unit, a plurality of resistors with different resistance values connected to each FET, and a reference resistor connected to the plurality of resistors with different resistance values, and selectively controlled by the control unit. The FET is turned on, and the booster determines the boost voltage by receiving the divided voltage value by the resistor and reference resistor connected to the turned-on FET.

According to the present invention, a combustion part in the form of a pipe where a heating element is inserted and burned in a portable heating device is provided with a plurality of sensing members having a temperature coefficient of resistance according to temperature changes, so that the heat source moves when the heating element that is not exposed within the pipe burns. Provides a heat source movement detection structure for a portable heating device that can easily detect.

Figure 1 is a cross-sectional view showing a portable ashtray that doubles as a lighter to which the present invention can be applied.
Figure 2 is a circuit block diagram for explaining a heat source movement detection structure of a portable heating device according to an embodiment of the present invention.
Figure 3 is a circuit block diagram for explaining an example of a boosting operation by a booster in the heat source movement detection structure of a portable heating device according to an embodiment of the present invention.

The present invention will be described in detail below with reference to the drawings.

Figure 1 is a cross-sectional view showing a portable ashtray that doubles as a lighter to which the present invention can be applied. Referring to Figure 1, a portable ashtray that doubles as a lighter includes a main body 100 and a cigarette holder 200 coupled to the upper part of the main body 100. The main body 100 includes a combustion unit 130 that heats and combusts the cigarette (A), a filter unit 300 to remove harmful components of sidestream smoke, which is the smoke coming directly from the end of the cigarette (A) being burned, and sidestream smoke. A fan 400 is installed to generate forced flow to be discharged through the filter unit 300, and a battery 110 that provides power to the combustion unit 130 and the fan 400, the combustion unit 130, and the fan are installed. A control unit 120 that controls 400 is installed. In the portable ashtray that doubles as a lighter as described above, the non-exposed part of the cigarette (A), which is a heating element, is inserted into the combustion section 130 in the form of a pipe and combusts. In order to control the extinguishing position of the cigarette within the combustion section 130, a heat source is used. Technology that can detect movement is needed. In the present invention, the heat source is defined as the area with the highest temperature in the pipe of the portable heating device.

Figure 2 is a circuit block diagram for explaining a heat source movement detection structure of a portable heating device according to an embodiment of the present invention. Referring to Figure 2, the heat source movement detection structure of the portable heating device according to an embodiment of the present invention includes a combustion section 130 in the form of a pipe into which the cigarette (A), a heating element, is inserted and heated, and a combustion section 130 in the form of a pipe. A plurality of sensing members (130-1, 130-2, 130-3, 130-4, 130-5, 130-6) installed separately from each other, connected in series and having a temperature coefficient of resistance, and a plurality of sensing elements A plurality of sensing members (130-1, 130) connected in series with an amplifier (140) connected in series with the members (130-1, 130-2, 130-3, 130-4, 130-5, 130-6) -2, 130-3, 130-4, 130-5, 130-6) connected between the booster 160 and the amplifier 140 and the booster 160 connected to the sensing member 130-6 on one side. Includes a control unit 120. The cigarette (A), which is a heating element inserted into the pipe-shaped combustion unit 130, is ignited and burned within the pipe-shaped combustion unit 130. The combustion unit 130 in the form of a pipe has a structure whose inside is not visible and may be made of, for example, ceramic or SUS material. Depending on the embodiment, a plurality of sensing members (130-1, 130-2, 130-3, 130-4, 130-5, 130-6) are installed on the outer surface of the combustion unit 130 in the form of a pipe, for example For example, the plurality of sensing members (130-1, 130-2, 130-3, 130-4, 130-5, 130-6) are made of metal wire with a high temperature coefficient of resistance and are located on the outer surface of the combustion section 130 in the form of a pipe. It is installed by winding it. Depending on the embodiment, the plurality of sensing members (130-1, 130-2, 130-3, 130-4, 130-5, and 130-6) each have a different number of turns and a different temperature coefficient of resistance. In addition, for example, the plurality of sensing members (130-1, 130-2, 130-3, 130-4, 130-5, 130-6) are made of a metal pattern with a high temperature coefficient of resistance, and the combustion section (130) in the form of a pipe ) It can be installed by printing, attaching, or inserting on the inner surface or the outer surface of the duct-shaped combustion unit 130. If the combustion unit 130 in the form of a pipe is made of a material with high thermal insulation, a plurality of sensing members (130-1, 130-2, 130-3, 130-4, 130-5, 130-6) are formed in the form of a pipe. It is easy to detect the movement of the heat source by installing it on the inner surface of the combustion unit 130. Depending on the embodiment, the plurality of sensing members (130-1, 130-2, 130-3, 130-4, 130-5, 130-6) have at least one of the width and thickness of the metal pattern and have different resistance temperature coefficients. It is done. The cigarette (A), which is a heating element, is inserted into the pipe-shaped combustion part 130 and burns, thereby moving the heat source, and a plurality of sensing members (130-1, 130-2, 130-3, 130-4, 130-5) , 130-6), the voltage is amplified by the amplifier 140 and input to the control unit 120, for example, by a plurality of sensing members 130-1, 130-2, 130-3, 130-4, 130-5, When the resistance temperature coefficients of 130-6 are the same, the control unit 120 detects a plurality of sensing members (130-1, 130-2, 130-3, 130-4, 130-5, 130) when the resistance value changes for the first time. Among -6), it is determined that there is a heat source at the location of the duct-shaped combustion unit 130 where the first sensing member (130-1) is installed, and secondly, when the resistance value changes, the second sensing member (130-2) It is determined that there is a heat source at the location of the installed pipeline-shaped combustion unit 130, and when the resistance value changes for the third time, the heat source is located at the location of the pipeline-shaped combustion unit 130 where the third sensing member 130-3 is installed. I judge that there is. Through this series of judgment processes, the control unit 120 can detect the movement of the heat source. In addition, depending on the embodiment, when the plurality of sensing members 130-1, 130-2, 130-3, 130-4, 130-5, and 130-6 have different temperature coefficients of resistance, the control unit 120 operates the amplifier 140. Depending on the amplified and input voltage, changes in temperature and resistance are determined and the resistance temperature coefficient is calculated. For example, the calculated resistance temperature coefficient is the resistance thermometer of the first sensing member (130-1) among the plurality of sensing members (130-1, 130-2, 130-3, 130-4, 130-5, 130-6). If water, the control unit 120 has a pipe shape in which the first sensing member (130-1) among the plurality of sensing members (130-1, 130-2, 130-3, 130-4, 130-5, 130-6) is installed. It is determined that there is a heat source at the location of the combustion unit 130, and the calculated resistance temperature coefficient is one of the plurality of sensing members (130-1, 130-2, 130-3, 130-4, 130-5, and 130-6). If the resistance temperature coefficient of the second sensing member (130-2) is the resistance temperature coefficient, the control unit 120 selects the first among the plurality of sensing members (130-1, 130-2, 130-3, 130-4, 130-5, 130-6). 2 It is determined that there is a heat source at the location of the duct-shaped combustion unit 130 where the sensing member 130-2 is installed, and the calculated resistance temperature coefficient is determined to be the same as that of the plurality of sensing members 130-1, 130-2, 130-3, and 130. If the resistance temperature coefficient of the third sensing member (130-3) among -4, 130-5, and 130-6 is, the control unit 120 controls the plurality of sensing members (130-1, 130-2, 130-3, 130-). Among 4, 130-5, and 130-6, it is determined that there is a heat source at the location of the pipe-shaped combustion unit 130 where the third sensing member 130-3 is installed. Through this series of judgment processes, the control unit 120 can detect the movement of the heat source. According to the embodiment, a first base register 170-1 and a second base register 170-2 are installed on one side and the other side of the combustion unit 130 in the form of a pipe, respectively, and the first base register 170- 1) and the second base register 170-2 are each connected to the control unit 120. The control unit 120 checks the temperature of the combustion unit 130 in the form of a pipe from time to time based on the resistance value input from the first base register 170-1 and/or the second base register 170-2, for example For example, when the temperature of the piping-shaped combustion unit 130 is below a preset reference value, when the overall temperature of the piping-shaped combustion unit 130 drops, a plurality of sensing members 130-1, 130-2, 130-3, 130- 4, 130-5, 130-6), the change in resistance value depending on the temperature decreases and it may be difficult to detect the movement of the heat source, so the control unit 120 controls the booster 160 to boost the voltage. For example, the control unit 120 and the booster 160 are connected through I2C communication or GPIO communication, and when the control unit 120 needs to boost the voltage, it sends a corresponding signal to the booster 160 so that the booster 160 receives the corresponding signal. The voltage is boosted by the predetermined boost value.

Figure 3 is a circuit block diagram for explaining an example of a boosting operation by a booster in the heat source movement detection structure of a portable heating device according to an embodiment of the present invention. Referring to Figure 3, depending on the embodiment, between the control unit 120 and the booster 160, a plurality of FETs (180-1, 180-2, 180-3) connected to the control unit 120 and each FET (180-1) , 180-2, 180-3), a plurality of resistors (190-2, 190-3, 190-4) having different resistance values and a plurality of resistors (190-2, 190-) having different resistance values. 3, and has a reference resistor (190-1) connected to 190-4). When one of the plurality of FETs 180-1, 180-2, and 180-3 is selectively turned on under the control of the control unit 120, the booster 160 operates the plurality of FETs 180-1, 180- Enter the distribution voltage value by any one of the plurality of resistors (190-2, 190-3, 190-4) connected to any one of (2, 180-3) and the reference resistor (190-1). Receive. As described above with reference to FIG. 2, the control unit 120 operates the combustion unit 130 in the form of a pipe at any time according to the resistance value input from the first base register 170-1 and/or the second base register 170-2. ), when the control unit 120 determines that boosting is necessary, it selectively turns on one of the plurality of FETs (180-1, 180-2, and 180-3) according to the required boosting value. For example, when the control unit 120 turns on the second FET (180-2) among the plurality of FETs (180-1, 180-2, 180-3) according to the required boost value, the second FET (180- The division voltage value by the second resistor 190-3 and the reference resistor 190-1 connected to 2) is input to the booster 160, and the booster 160 increases the voltage by a predetermined boost value according to the input division voltage value. Step up the voltage.

Depending on the embodiment, one of the plurality of resistors 190-2, 190-3, and 190-4 having different resistance values connected to each of the FETs 180-1, 180-2, and 180-3 is a base resistor. It is one of (170-1, 170-2), and the control unit 120 turns on only the FET to which the base register is connected among the plurality of FETs (180-1, 180-2, 180-3), The divided voltage value by the reference resistor 190-1 is input to the booster 160, and the booster 160 boosts the voltage by a predetermined boosting value according to the input divided voltage value. In this case, the control unit 120 does not need to read the resistance value of the base register at any time, but when the resistance value of the base register changes depending on the temperature, the distribution voltage value by the base resistor and the reference resistor 190-1 changes accordingly, and the booster ( 160), and the booster 160 boosts the voltage by a predetermined boost value according to the input distribution voltage value.

The present invention is not limited to the specific preferred embodiments described above, and various modifications can be made by anyone skilled in the art without departing from the gist of the invention as claimed in the claims. Of course, such changes are within the scope of the claims.

Claims (15)

a combustion section in the form of a pipe into which a burning heating element is inserted and heated;
A plurality of sensing members provided in a combustion section in the form of a pipe, installed separately from each other, connected in series, and having a temperature coefficient of resistance;
An amplifier connected in series with a plurality of sensing members;
A booster connected to one sensing member among a plurality of sensing members connected in series; Includes a control unit connected between the amplifier and the booster,
As the heating element burns, the heat source in the combustion section moves,
The amplifier varies depending on the location of the heat source of the combustion unit and inputs a voltage corresponding to the resistance value of the plurality of sensing members to the control unit,
The control unit determines the location of the heat source using the change sequence of the resistance value corresponding to the input voltage, or calculates the temperature coefficient of resistance according to the input voltage and determines the location of the heat source using the calculated temperature coefficient of resistance. Heat source movement detection structure of a portable heating device. According to paragraph 1,
A heat source movement detection structure for a portable heating device, characterized in that the plurality of sensing members are installed on the outer or inner surface of the combustion section in the form of a pipe. According to paragraph 2,
The plurality of sensing members is made of a metal wire with a high temperature coefficient of resistance and is wound and installed on the outer surface of the combustion section in the form of a pipe, or is made of a metal pattern with a large temperature coefficient of resistance and is printed on the outer side of the combustion section in the form of a pipe or on the inner side of the combustion section. A heat source movement detection structure for a portable heating device, characterized in that it is installed by any one of (printing), attachment, and insert. According to paragraph 3,
A heat source movement detection structure for a portable heating device, wherein each of the plurality of sensing members has a different number of turns. delete According to paragraph 3,
A heat source movement detection structure for a portable heating device, wherein the plurality of sensing members differ from each other in at least one of the width and thickness of the metal pattern. delete delete delete According to any one of claims 1 to 4 or 6,
A heat source movement detection structure for a portable heating device, wherein the plurality of sensing members have different temperature coefficients of resistance. According to any one of claims 1 to 4 or 6,
A heat source movement detection structure for a portable heating device, comprising base registers installed on one side and the other side of a combustion section in the form of a pipe, and each base register being connected to a control unit. According to any one of claims 1 to 4 or 6,
A heat source movement detection structure for a portable heating device, wherein the control unit and the booster are connected through I2C communication. According to any one of claims 1 to 4 or 6,
A heat source movement detection structure for a portable heating device, wherein the control unit and the booster are connected through GPIO communication. According to any one of claims 1 to 4 or 6,
Between the control unit and the booster, there is provided a plurality of FETs connected to the control unit, a plurality of resistors with different resistance values connected to each FET, and a reference resistor connected to the plurality of resistors with different resistance values, and selectively controlled by the control unit. A heat source movement detection structure for a portable heating device, characterized in that the FET is turned on and the booster determines the boost voltage by receiving the distribution voltage value by the resistor and reference resistor connected to the turned-on FET. According to clause 14,
One of the plurality of resistors with different resistance values connected to each FET is a base resistor, and the control unit turns on only the FET connected to the base resistor, and the booster operates on the base resistor and reference resistor connected to the turned-on FET. A heat source movement detection structure for a portable heating device, characterized in that it receives the distribution voltage value and determines the boost voltage.