A gas stove heat energy recycling device

Abstract

The application relates to a gas stove heat energy recycling device which comprises a gas stove body, a heat conduction pipe and a thermoelectric conversion module. The heat conduction pipe is annularly wound at equal intervals between a plurality of gas stove heads in the gas stove body at one end to form a heat preservation area, and the other end of the heat conduction pipe is wound outside the gas stove heads in the gas stove body, so that the heat output by the gas stove heads in a use state can be transmitted to the heat preservation area through the heat conduction pipe. The thermoelectric conversion module is located at the lower side of the heat preservation area and is attached to the lower surface of the heat preservation area, and the thermoelectric conversion module is used for converting the heat of the heat preservation area into electric energy. The technical scheme provided by the application can fully utilize the energy of the gas stove combustion, improve the combustion utilization rate of the gas stove, and convert the heat of the heat preservation area into electric energy through the thermoelectric conversion module to replace the battery to supply power to the electric control device, so that the problem that the ignition power supply and the electric control power supply of the gas stove only rely on the battery power supply and the service life of the battery is shortened can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas stoves, in particular to a gas stove heat energy recycling device. BACKGROUND

[0002] During the heating process of the gas stove, the heat energy generated by combustion and electromagnetism cannot be utilized in 100%, and a large amount of heat is dissipated, thereby the problem of low heat conversion efficiency exists. Further, due to climate, indoor temperature, cooking time and other reasons, the dishes may become cold over time during the cooking process, affecting the taste and people's health. At the same time, there are two types of ignition systems on the market. One type is battery-powered to achieve ignition and display, timing and other electric control functions of the igniter. This method has a limited battery life and requires frequent battery replacement. The other type is an intelligent power supply system to achieve power supply for the igniter. This power supply method generates a large spike pulse at the moment of ignition of the igniter, which causes current surges that affect the power supply system, resulting in screen flashing and communication interruption, thereby stopping the heating of the gas stove and affecting the user's satisfaction. SUMMARY

[0003] In order to solve the above technical problems, the present application provides a technical scheme of a gas stove heat energy recycling device. Specifically, the present application sets a heat pipe and a thermoelectric conversion module on the gas stove body, so as to form a heat preservation area by using the heat pipe, thereby fully utilizing the energy generated by the gas stove combustion, improving the combustion utilization rate of the gas stove, and further attaching the thermoelectric conversion module to the lower surface of the heat preservation area, so that the thermoelectric conversion module converts the heat of the heat preservation area into electrical energy, thereby using the thermoelectric conversion module to replace the battery to supply power to the electric control device, thereby solving the problem that the traditional gas stove ignition power supply and electric control power supply rely only on battery power supply, resulting in shortened battery life.

[0004] The present application provides a gas stove heat energy recycling device, which comprises a gas stove body and a heat pipe and a thermoelectric conversion module arranged on the gas stove body.

[0005] One end of the heat pipe is annularly wound at equal intervals between a plurality of gas stove heads in the gas stove body to form a heat preservation area, and the other end of the heat pipe is wound outside the gas stove heads in the gas stove body. The heat output by the gas stove heads in use can be transmitted to the heat preservation area through the heat pipe.

[0006] The thermoelectric conversion module is located on the lower side of the heat preservation area and is attached to the lower surface of the heat preservation area. The thermoelectric conversion module is used to convert the heat of the heat preservation area into electrical energy.

[0007] Further, the thermoelectric conversion module comprises a thermoelectric power generation unit and a heat dissipation unit.

[0008] The heat-absorbing surface of the thermoelectric power generation unit is attached to the lower surface of the heat preservation area to form a power generation hot end, the cold surface of the thermoelectric power generation unit is attached to the heat dissipation unit to form a power generation cold end, and there is a potential difference between the power generation hot end and the power generation cold end.

[0009] Further, a dual power supply switching module is further included.

[0010] The first input end of the dual power supply switching module is used for connecting with the battery power supply, the second input end of the dual power supply switching module is connected with the output end of the thermoelectric conversion module, and the output end of the dual power supply switching module is used for connecting with the electric control device.

[0011] The dual power supply switching module is used for switching the power supply from the battery power supply to the thermoelectric conversion module, so that the thermoelectric conversion module supplies power to the electric control device.

[0012] Further, the dual power supply switching module includes a switching unit, a voltage boosting output unit and a control unit.

[0013] The first input end of the switching unit is used for connecting with the battery power supply, the second input end of the switching unit is connected with the first output end of the voltage boosting output unit, the output end of the switching unit is respectively connected with a gas stove igniter and the input end of the control unit, the input end of the voltage boosting output unit is connected with the output end of the thermoelectric conversion module, and the second output end of the voltage boosting output unit is connected with the input end of the control unit.

[0014] The switching unit is used for controlling the battery power supply to supply power to the gas stove igniter, when the battery power supply supplies power to the gas stove igniter and the gas stove igniter is in an ignition state, the thermoelectric conversion module outputs a voltage signal to the voltage boosting output unit, the voltage boosting output unit outputs a high-level signal to the switching unit and the control unit based on the voltage signal, so that the switching unit switches the power supply from the battery power supply to the control unit to the thermoelectric conversion module based on the high-level signal.

[0015] Further, the voltage boosting output unit includes a voltage boosting subunit and a power supply output subunit.

[0016] The input end of the voltage boosting subunit is connected with the output end of the thermoelectric conversion module, the output end of the voltage boosting subunit is connected with the input end of the power supply output subunit, the first output end of the power supply output subunit is connected with the second input end of the switching unit, and the second output end of the power supply output subunit is connected with the input end of the control unit.

[0017] The voltage boosting sub-unit is configured to boost the voltage signal output by the thermoelectric conversion module to obtain a voltage boosting signal, and transmit the voltage boosting signal to the power supply output sub-unit, so that the power supply output sub-unit outputs a high-level signal to the switching sub-unit and the control unit based on the voltage boosting signal.

[0018] Further, the switching sub-unit comprises a triode and a first resistor.

[0019] The emitter of the triode is connected to the battery power supply, the collector of the triode is connected to one end of the gas stove igniter and the input end of the control unit, the base of the triode is connected to one end of the first resistor and the first output end of the power supply output sub-unit in the voltage boosting output sub-unit, and the other end of the first resistor and the other end of the gas stove igniter are grounded.

[0020] Further, the dual-power switching module comprises a switching sub-unit, a voltage boosting output sub-unit and a control unit.

[0021] The first input end of the switching sub-unit is configured to be connected to the battery power supply, the second input end of the switching sub-unit is connected to the output end of the control unit, the output end of the switching sub-unit is connected to the gas stove igniter and the input end of the control unit, the input end of the voltage boosting output sub-unit is connected to the output end of the thermoelectric conversion module, and the output end of the voltage boosting output sub-unit is connected to the input end of the control unit.

[0022] The control unit is configured to detect the output voltage value of the voltage boosting output sub-unit, and when it is detected that the output voltage value of the voltage boosting output sub-unit meets a first preset voltage condition, the control unit outputs a low-level control signal to the switching sub-unit, and the switching sub-unit is in a conductive state based on the low-level control signal, and the battery power supply supplies power to the gas stove igniter, and when the battery power supply supplies power to the gas stove igniter and the gas stove igniter is in an ignition state, the control unit outputs a high-level control signal to the switching sub-unit, and the switching sub-unit switches the battery power supply to supply power to the control unit to the thermoelectric conversion module to supply power to the control unit based on the high-level control signal.

[0023] Further, the voltage boosting output sub-unit comprises a voltage boosting sub-unit and a power supply output sub-unit.

[0024] The input end of the voltage boosting sub-unit is connected with the output end of the thermoelectric conversion module, the output end of the voltage boosting sub-unit is connected with the input end of the power supply output sub-unit, and the output end of the power supply output sub-unit is connected with the input end of the control unit.

[0025] The voltage boosting sub-unit is used for boosting the voltage signal output by the thermoelectric conversion module to obtain a voltage boosting signal, and transmitting the voltage boosting signal to the power supply output sub-unit, so that the power supply output sub-unit supplies power to the control unit based on the voltage boosting signal.

[0026] Further, the switching unit includes a triode and a first resistor.

[0027] The emitter of the triode is connected with the battery power supply, the collector of the triode is respectively connected with one end of the gas stove igniter and the input end of the control unit, the base of the triode is respectively connected with one end of the first resistor and the output end of the control unit, and the other end of the first resistor and the other end of the gas stove igniter are grounded.

[0028] Further, the voltage boosting sub-unit includes a voltage boosting chip, a first capacitor, a second capacitor and an inductor.

[0029] The input end of the voltage boosting chip is respectively connected with the output end of the thermoelectric conversion module, one end of the first capacitor and one end of the inductor, the output end of the voltage boosting chip is respectively connected with one end of the second capacitor and the input end of the power supply output sub-unit, and the other end of the inductor is connected with the inductor pin of the voltage boosting chip.

[0030] The application has the following beneficial effects:

[0031] The application sets the heat pipe and the thermoelectric conversion module on the gas stove body, so as to form a heat preservation area by the heat pipe, and then the energy of the gas stove combustion can be fully utilized to improve the combustion utilization rate of the gas stove. Further, the thermoelectric conversion module is attached to the lower surface of the heat preservation area, so that the thermoelectric conversion module converts the heat of the heat preservation area into electric energy, and then the thermoelectric conversion module can be used to replace the battery to supply power to the electric control device, thereby solving the problem that the traditional gas stove ignition power supply and electric control power supply only rely on battery power supply, resulting in shortening of the service life of the battery. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0033] Figure 1 A structural schematic diagram of a gas stove heat energy recycling device provided by an embodiment of the present application is shown in the figure.

[0034] Figure 2 A structural schematic diagram of a thermoelectric conversion module provided by an embodiment of the present application is shown in the figure.

[0035] Figure 3 A circuit diagram corresponding to a double power supply switching module provided by an embodiment of the present application is shown in the figure.

[0036] Figure 4 A circuit diagram corresponding to another double power supply switching module provided by an embodiment of the present application is shown in the figure.

[0037] In the figure, the reference signs correspond to: 1-gas stove body; 12-gas stove head; 13-gas stove igniter; 2-heat conduction pipe; 21-heat preservation area; 3-thermoelectric conversion module; 31-thermoelectric power generation unit; 32-heat dissipation unit; 4-double power supply switching module; 41-switching unit; 411-triode; 412-first resistor; 42-voltage boosting output unit; 421-voltage boosting subunit; 4211-voltage boosting chip; 4212-first capacitor; 4213-second capacitor; 4214-inductor; 422-power supply output subunit; 4221-second resistor; 4222-third resistor; 4223-third capacitor; 43-control unit; 5-battery power supply; 6-timing module; 7-display module; 8-buzzing module. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be described clearly and completely in the following description with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0039] It should be noted that the terms "first", "second" and the like in the description and in the claims of the present application and the above-mentioned accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or server including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0040] Please refer to Figures 1-4 , the following will be combined Figures 1-4 to make a detailed description of the gas stove heat energy recycling device provided by the embodiments of the present application.

[0041] The embodiments of the present application provide a gas stove heat energy recycling device, as Figure 1 shown, the gas stove heat energy recycling device comprises a gas stove body 1 and a heat pipe 2 and a thermoelectric conversion module 3 arranged on the gas stove body 1.

[0042] Among them, one end of the heat pipe 2 is annularly wound at equal intervals between a plurality of gas stove heads 12 in the gas stove body 1 to form a heat preservation area 21, the other end of the heat pipe 2 is wound outside the gas stove head 12 in the gas stove body 1, the heat output by the gas stove head 12 in use can be transmitted to the heat preservation area 21 through the heat pipe 2; the thermoelectric conversion module 3 is located on the lower side of the heat preservation area 21 and is attached to the lower surface of the heat preservation area 21, the thermoelectric conversion module 3 is used to convert the heat of the heat preservation area 21 into electrical energy.

[0043] In the embodiments of the present application, the heat pipe 2 can be a copper pipe, a silver pipe or an aluminum pipe, preferably, the heat pipe 2 is a copper pipe, so the heat pipe 2 has high thermal conductivity and heat capacity performance, the gas stove head 12 comprises an outer ring fire cover and an inner ring fire cover, the other end of the heat pipe 2 is wound outside the outer ring fire cover in the gas stove head 12, so as to conduct the high temperature of the outer ring fire cover, wherein, as Figure 1 shown, the plurality of gas stove heads 12 can be two gas stove heads 12, the heat preservation area 21 is located between the two gas stove heads 12, the shape of the heat preservation area 21 can be circular, square, rectangular or trapezoidal, preferably, the shape of the heat preservation area 21 is circular, and then by arranging the heat pipe 2 on the gas stove body 1, the heat pipe 2 is used to form the heat preservation area 21 between the two gas stove heads 12 by transmitting the heat released by the gas stove head 12, so that the energy of the gas stove combustion can be fully utilized, and the combustion utilization rate of the gas stove is improved.

[0044] The heat preservation area 21 can perform heat preservation on the cooked dishes, and further solve the technical problem that the dishes may become cold over time due to climate, indoor temperature, cooking time and the like during cooking.

[0045] Further, the thermoelectric conversion module 3 is attached to the lower surface of the heat preservation area 21, so that the thermoelectric conversion module 3 converts the heat of the heat preservation area 21 into electric energy, and the electric control device can be powered by the thermoelectric conversion module 3 instead of the battery, thereby solving the pain point that the battery life is shortened due to the dependence on the battery for power supply of the traditional gas stove ignition and the electric control device.

[0046] In a specific embodiment, as shown in Figure 2 The thermoelectric conversion module 3 includes a thermoelectric generation unit 31 and a heat dissipation unit 32; the heat absorption surface of the thermoelectric generation unit 31 is attached to the lower surface of the heat preservation area 21 to form a hot end of power generation, the cold surface of the thermoelectric generation unit 31 is attached to the heat dissipation unit 32 to form a cold end of power generation, and there is a potential difference between the hot end of power generation and the cold end of power generation.

[0047] In the embodiment, the thermoelectric generation unit 31 and the heat dissipation unit 32 are provided, so that the heat absorption surface of the thermoelectric generation unit 31 is attached to the lower surface of the heat preservation area 21 to form a hot end of power generation, the cold surface of the thermoelectric generation unit 31 is attached to the heat dissipation unit 32 to form a cold end of power generation, and there is a potential difference between the hot end of power generation and the cold end of power generation, so that the thermoelectric conversion module 3 is used to convert heat energy into electric energy.

[0048] In actual application, the thermoelectric generation unit 31 is a thermoelectric generation sheet made of bismuth telluride, so the heat output by the heat preservation area 21 can be directly converted into electric energy. In some specific embodiments, the thermoelectric generation unit 31 can directly convert heat into electric energy, which mainly utilizes the Seebeck effect in thermoelectric effect. The specific power generation principle is as follows: the heat absorption surface of the thermoelectric generation unit 31 is attached to the lower surface of the heat preservation area 21 to form a hot end of power generation, the cold surface of the thermoelectric generation unit 31 is attached to the heat dissipation unit 32 to form a cold end of power generation, and the hot end of power generation has strong thermal excitation, so the concentration of electrons and holes near the hot end of power generation is higher, while the concentration of electrons and holes near the cold end of power generation is lower. Under the driving of this carrier concentration gradient, electrons and holes diffuse from the hot end of power generation to the cold end of power generation, thereby forming a potential difference. Therefore, when the thermoelectric conversion module 3 is connected to the circuit, an electric current can be generated by using this potential difference to convert heat energy into electric energy.

[0049] It should be noted that the output power of the thermoelectric conversion module 3 is proportional to the square of the temperature difference between the power generation hot end and the power generation cold end. It can be understood that the greater the temperature difference between the power generation hot end and the power generation cold end, the greater the output power of the thermoelectric conversion module 3, and vice versa. Further, the greater the load resistance of the thermoelectric conversion module 3, the greater the voltage value output by the thermoelectric conversion module 3.

[0050] In a specific embodiment, as shown in Figure 3 and Figure 4 The gas stove heat energy recycling device further comprises a dual power supply switching module 4; the first input end of the dual power supply switching module 4 is used to be connected with the battery power supply 5, the second input end of the dual power supply switching module 4 is connected with the output end of the thermoelectric conversion module 3, and the output end of the dual power supply switching module 4 is used to be connected with the electric control device; the dual power supply switching module 4 is used to switch the power supply from the battery power supply 5 to the thermoelectric conversion module 3, so that the thermoelectric conversion module 3 supplies power to the electric control device.

[0051] In the embodiments of the present application, the dual power supply switching module 4 is provided to switch the power supply from the battery power supply 5 to the thermoelectric conversion module 3, so that the thermoelectric conversion module 3 supplies power to the electric control device, thereby solving the problem that the traditional gas stove ignition power supply and the electric control device power supply only rely on the battery, which shortens the service life of the battery, thereby prolonging the service life of the battery.

[0052] In actual application, as shown in Figure 3 or Figure 4 The electric control device comprises a timing module 6, a display module 7 and a buzzer module 8, wherein the timing module 6, the display module 7 and the buzzer module 8 are connected with the control unit 43 in the dual power supply switching module 4, so as to realize the electric control functions such as timing, display or buzzer.

[0053] In a specific embodiment, as shown in Figure 3As shown, the dual power supply switching module 4 includes a switching unit 41, a voltage boosting output unit 42 and a control unit 43; a first input end of the switching unit 41 is configured to be connected with the battery power supply 5, a second input end of the switching unit 41 is connected with a first output end of the voltage boosting output unit 42, an output end of the switching unit 41 is connected with the gas stove igniter 13 and an input end of the control unit 43 respectively, an input end of the voltage boosting output unit 42 is connected with an output end of the thermoelectric conversion module 3, and a second output end of the voltage boosting output unit 42 is connected with an input end of the control unit 43; the switching unit 41 is configured to control the battery power supply 5 to supply power to the gas stove igniter 13, when the battery power supply 5 supplies power to the gas stove igniter 13 and the gas stove igniter 13 is in the ignition state, the thermoelectric conversion module 3 outputs a voltage signal to the voltage boosting output unit 42, the voltage boosting output unit 42 outputs a high-level signal to the switching unit 41 and the control unit 43 based on the voltage signal, so that the switching unit 41 switches the battery power supply 5 to supply power to the control unit 43 to the thermoelectric conversion module 3 to supply power to the control unit 43 based on the high-level signal.

[0054] In the embodiment of the present application, when the battery power supply 5 supplies power to the gas stove igniter 13 and the gas stove igniter 13 is in the ignition state, it indicates that the gas stove igniter 13 is in the use stage, and then the thermoelectric conversion module 3 can output a voltage signal to the voltage boosting output unit 42, so that the voltage boosting output unit 42 outputs a high-level signal to the switching unit 41 and the control unit 43 based on the voltage signal, so that the thermoelectric conversion module 3 can supply power to the control unit 43, at the same time, the switching unit 41 stops supplying power to the control unit 43 based on the high-level signal sent by the voltage boosting output unit 42, and then the battery power supply 5 can be switched to supply power to the control unit 43 to the thermoelectric conversion module 3 to supply power to the control unit 43, which can be understood as, at this time, the battery power supply 5 stops supplying power to the control unit 43 and is switched to the thermoelectric conversion module 3 to supply power to the control unit 43, so as to realize the hardware power supply switching control of the control unit 43, so as to solve the pain point that the traditional gas stove ignition power supply and the electric control device power supply only rely on the battery, which leads to the shortening of the service life of the battery, thereby prolonging the service life of the battery.

[0055] In a specific embodiment, the gas stove igniter 13 is also connected with the second output end of the voltage boosting output unit 42, and then when the switching unit 41 switches the battery power supply 5 to supply power to the control unit 43 to the thermoelectric conversion module 3 to supply power to the control unit 43, it also switches the battery power supply 5 to supply power to the gas stove igniter 13 to the thermoelectric conversion module 3 to supply power to the gas stove igniter 13, so as to realize the continuous power supply for the gas stove igniter 13, so that the battery power supply 5 stops supplying power to the gas stove igniter 13, thereby prolonging the service life of the battery.

[0056] In one specific embodiment, as shown in Figure 3 the switching unit 41 includes a triode 411 and a first resistor 412; wherein the emitter of the triode 411 is connected with the battery power supply 5, the collector of the triode 411 is connected with one end of the gas stove igniter 13 and the input end of the control unit 43 respectively, the base of the triode 411 is connected with one end of the first resistor 412 and the first output end of the power output sub-unit 422 in the boost output unit 42 respectively, and the other end of the first resistor 412 and the other end of the gas stove igniter 13 are both grounded.

[0057] Specifically, before the gas stove igniter 13 performs ignition, i.e., the gas stove head 12 has not been used, the heat-electricity conversion module 3 cannot convert the heat of the heat preservation area 21 into electric energy, and at the same time, since the base of the triode 411 is connected with the first output end of the power output sub-unit 422, the base of the triode 411 is a low-level signal, further, the emitter of the triode 411 is connected with the battery power supply 5, and the triode 411 is a PNP structure, so the triode 411 is in a conducting state, at this time, the battery power supply 5 can supply power to the gas stove igniter 13 and the control unit 43, so as to perform power ignition for the gas stove igniter 13, and the control unit 43 controls the timing module 6, the display module 7 and the buzzer module 8, so as to realize the electric control functions such as timing, display or buzzer.

[0058] In one specific embodiment, continuing to refer to Figure 3 the boost output unit 42 includes a boost sub-unit 421 and a power output sub-unit 422; wherein the input end of the boost sub-unit 421 is connected with the output end of the heat-electricity conversion module 3, the output end of the boost sub-unit 421 is connected with the input end of the power output sub-unit 422, the first output end of the power output sub-unit 422 is connected with the second input end of the switching unit 41, and the second output end of the power output sub-unit 422 is connected with the input end of the control unit 43; the boost sub-unit 421 is used for boosting the voltage signal output by the heat-electricity conversion module 3 to obtain a voltage boost signal, and transmitting the voltage boost signal to the power output sub-unit 422, so that the power output sub-unit 422 outputs a high-level signal to the switching unit 41 and the control unit 43 based on the voltage boost signal respectively.

[0059] In the embodiment of the present application, the voltage signal output by the thermoelectric conversion module 3 is boosted by the boosting sub-unit 421, a voltage boosted signal is obtained, and the voltage boosted signal is transmitted to the power supply output sub-unit 422, so that the power supply output sub-unit 422 outputs a high-level signal to the switching unit 41 and the control unit 43 based on the voltage boosted signal, so as to realize the hardware switching process of power supply.

[0060] In one specific embodiment, as shown in Figure 3 , the boosting sub-unit 421 includes a boosting chip 4211, a first capacitor 4212, a second capacitor 4213 and an inductor 4214; wherein the input end of the boosting chip 4211 is connected with the output end of the thermoelectric conversion module 3, one end of the first capacitor 4212 and one end of the inductor 4214 respectively, the output end of the boosting chip 4211 is connected with one end of the second capacitor 4213 and the input end of the power supply output sub-unit 422 respectively, and the other end of the inductor 4214 is connected with the inductor 4214 pin of the boosting chip 4211.

[0061] In some specific embodiments, continuing to refer to Figure 3 , the power supply output sub-unit 422 includes a second resistor 4221, a third resistor 4222 and a third capacitor 4223, wherein one end of the second resistor 4221 is connected with one end of the second capacitor 4213 and one end of the third capacitor 4223 respectively, the other end of the second resistor 4221 is connected with one end of the third resistor 4222 and the base of the triode 411 in the switching unit 41 respectively, one end of the third capacitor 4223 is also connected with the input end of the gas stove igniter 13 and the input end of the control unit 43, and the other end of the third resistor 4222 is grounded.

[0062] Specifically, when the gas stove igniter 13 is in the ignition state, that is, the gas stove burner 12 is in the use state, the thermoelectric conversion module 3 can convert the heat of the heat preservation area 21 into electrical energy, and then output a voltage signal to the voltage boosting sub-unit 421, and then the voltage boosting chip 4211 can be used for voltage boosting processing. The voltage value after voltage boosting can reach the required voltage value. For example, the voltage value after voltage boosting by the voltage boosting chip 4211 is stable at 5V, 10V or 15V, and preferably, the voltage value after voltage boosting by the voltage boosting chip 4211 is stable at 5V. Thus, the voltage boosting chip 4211 can output a high-level signal to the switching unit 41 and the control unit 43 through the power supply output sub-unit 422. At the same time, since the base of the triode 411 is connected to the first output end of the power supply output sub-unit 422, the base of the triode 411 is a high-level signal, and the triode 411 is a PNP structure, so the triode 411 is in an off state. At this time, the battery power supply 5 stops supplying power to the gas stove igniter 13 and the control unit 43, and switches to the thermoelectric conversion module 3 to supply power to the gas stove igniter 13 and the control unit 43. Thus, the hardware power supply switching control for the gas stove igniter 13 and the control unit 43 can be realized, so as to solve the problem that the traditional gas stove ignition power supply and the electric control device power supply only rely on the battery, which shortens the service life of the battery, thereby prolonging the service life of the battery.

[0063] In actual application, the voltage boosting chip 4211 can be a SY7070 voltage boosting chip.

[0064] In another specific embodiment, as shown in Figure 3 the dual power supply switching module 4 includes a switching unit 41, a voltage boosting output unit 42 and a control unit 43. The first input end of the switching unit 41 is connected to the battery power supply 5, the second input end of the switching unit 41 is connected to the output end of the control unit 43, the output end of the switching unit 41 is connected to the input end of the control unit 43 and the gas stove igniter 13, the input end of the voltage boosting output unit 42 is connected to the output end of the thermoelectric conversion module 3, and the output end of the voltage boosting output unit 42 is connected to the input end of the control unit 43. The control unit 43 is used for detecting the output voltage value of the voltage boosting output unit 42. When it is detected that the output voltage value of the voltage boosting output unit 42 meets the first preset voltage condition, the control unit 43 outputs a low-level control signal to the switching unit 41, and the switching unit 41 is in a conductive state based on the low-level control signal. The battery power supply 5 supplies power to the gas stove igniter 13. When the battery power supply 5 supplies power to the gas stove igniter 13 and the gas stove igniter 13 is in the ignition state, the control unit 43 outputs a high-level control signal to the switching unit 41, and the switching unit 41 switches the battery power supply 5 to supply power to the control unit 43 to the thermoelectric conversion module 3 to supply power to the control unit 43 based on the high-level control signal.

[0065] In the embodiment of the present application, the first preset voltage condition is that the output voltage value of the boost output unit 42 is zero, that is, the gas stove igniter 13 is in an unignited state, then the control unit 43 outputs a low-level control signal to the switching unit 41, and then the switching unit 41 is in a conductive state based on the low-level control signal, at this time, the battery power supply 5 supplies power to the gas stove igniter 13, when the gas stove igniter 13 is in an ignited state, it indicates that the gas stove igniter 13 is in a use phase, and then the thermoelectric conversion module 3 can output a voltage signal to the boost output unit 42, so the control unit 43 can detect that the output voltage value of the boost output unit 42 is greater than zero, so the control unit 43 outputs a high-level control signal to the switching unit 41 through the switch pin, and the switching unit 41 switches the battery power supply 5 to supply power to the control unit 43 to the thermoelectric conversion module 3 to supply power to the control unit 43. It can be understood that at this time, the battery power supply 5 stops supplying power to the control unit 43 and switches to the thermoelectric conversion module 3 to supply power to the control unit 43, so as to realize the software power supply switching control of the control unit 43, so as to solve the pain point that the traditional gas stove ignition power supply and the electric control device power supply only rely on the battery, which shortens the service life of the battery, thereby prolonging the service life of the battery.

[0066] In a specific embodiment, the gas stove igniter 13 is also connected with the second output end of the boost output unit 42, and then when the switching unit 41 switches the battery power supply 5 to supply power to the control unit 43 to the thermoelectric conversion module 3 to supply power to the control unit 43, it also switches the battery power supply 5 to supply power to the gas stove igniter 13 to the thermoelectric conversion module 3 to supply power to the gas stove igniter 13, so as to realize the continuous power supply for the gas stove igniter 13, so that the battery power supply 5 stops supplying power to the gas stove igniter 13, thereby prolonging the service life of the battery.

[0067] In a specific embodiment, the switching unit 41 includes a transistor 411 and a first resistor 412; wherein the emitter of the transistor 411 is connected with the battery power supply 5, the collector of the transistor 411 is connected with one end of the gas stove igniter 13 and the input end of the control unit 43 respectively, the base of the transistor 411 is connected with one end of the first resistor 412 and the output end of the control unit 43 respectively, and the other end of the first resistor 412 and the other end of the gas stove igniter 13 are both grounded.

[0068] Specifically, before the gas stove igniter 13 is ignited, that is, the gas stove burner 12 has not been used, the thermoelectric conversion module 3 cannot convert the heat of the heat preservation area 21 into electrical energy, and the output voltage value of the boost output unit 42 detected by the control unit 43 is zero. At this time, the output voltage value of the boost output unit 42 meets the first preset voltage condition, the control unit 43 outputs a low-level control signal to the triode 411, and the base of the triode 411 is connected to the switch pin of the control unit 43. Therefore, the base of the triode 411 is a low-level control signal. Further, the emitter of the triode 411 is connected to the battery power supply 5, and the triode 411 is a PNP structure. Therefore, the triode 411 is in a conducting state. At this time, the battery power supply 5 can supply power to the gas stove igniter 13 and the control unit 43, so as to supply power to the gas stove igniter 13 for ignition, and the control unit 43 controls the timing module 6, the display module 7 and the buzzer module 8 to realize the functions of timing, display or buzzer.

[0069] In one specific embodiment, continuing to refer to Figure 4 , the boost output unit 42 includes a boost sub-unit 421 and a power supply output sub-unit 422; wherein the input end of the boost sub-unit 421 is connected to the output end of the thermoelectric conversion module 3, the output end of the boost sub-unit 421 is connected to the input end of the power supply output sub-unit 422, and the output end of the power supply output sub-unit 422 is connected to the input end of the control unit 43; the boost sub-unit 421 is used for boosting the voltage signal output by the thermoelectric conversion module 3 to obtain a voltage boost signal, and transmitting the voltage boost signal to the power supply output sub-unit 422, so that the power supply output sub-unit 422 supplies power to the control unit 43 based on the voltage boost signal.

[0070] In the embodiments of the present application, the boost output unit 42 including the boost sub-unit 421 and the power supply output sub-unit 422 is arranged, so as to boost the voltage signal output by the thermoelectric conversion module 3 by using the boost sub-unit 421 to obtain a voltage boost signal, and transmit the voltage boost signal to the power supply output sub-unit 422, so that the power supply output sub-unit 422 supplies power to the control unit 43 based on the voltage boost signal, so as to realize the switching process of power supply.

[0071] In one specific embodiment, as Figure 4As shown, the voltage boosting subunit 421 includes a voltage boosting chip 4211, a first capacitor 4212, a second capacitor 4213 and an inductor 4214; wherein the input end of the voltage boosting chip 4211 is connected with the output end of the thermoelectric conversion module 3, one end of the first capacitor 4212 and one end of the inductor 4214 respectively, the output end of the voltage boosting chip 4211 is connected with one end of the second capacitor 4213 and the input end of the power supply output subunit 422 respectively, and the other end of the inductor 4214 is connected with the inductor 4214 pin of the voltage boosting chip 4211.

[0072] In one specific embodiment, as shown in the figure, Figure 4 Figure 4 As shown, the power supply output subunit 422 includes a second resistor 4221, a third resistor 4222 and a third capacitor 4223, wherein one end of the second resistor 4221 is connected with one end of the second capacitor 4213 and one end of the third capacitor 4223 respectively, the other end of the second resistor 4221 is connected with one end of the third resistor 4222 and the input end of the control unit 43 respectively, one end of the third capacitor 4223 is also connected with the input end of the gas stove igniter 13, and the other end of the third resistor 4222 is grounded.

[0073] Specifically, when the gas stove igniter 13 is in the ignition state, i.e., the gas stove head 12 is in the use state, the thermoelectric conversion module 3 can convert the heat of the heat preservation area 21 into electric energy, and then output a voltage signal to the voltage boosting subunit 421, and then the voltage boosting chip 4211 can perform voltage boosting processing, and the voltage value after voltage boosting can reach the required voltage value, for example, the voltage value after voltage boosting by the voltage boosting chip 4211 is stabilized at 5V, 10V or 15V, etc., preferably, the voltage value after voltage boosting by the voltage boosting chip 4211 is stabilized at 5V, so that the voltage boosting chip 4211 can output the voltage value after voltage boosting to the control unit 43 through the power supply output subunit 422, and then the control unit 43 outputs a high-level control signal to the base of the triode 411 through the switch pin, so that the base of the triode 411 is a high-level control signal, and at the same time, the triode 411 is a PNP structure, so the triode 411 is in the off state, at this time, the battery power supply 5 stops supplying power to the gas stove igniter 13 and the control unit 43, and switches to the thermoelectric conversion module 3 to supply power to the gas stove igniter 13 and the control unit 43, thereby realizing the software power supply switching control for the gas stove igniter 13 and the control unit 43, so as to solve the pain point that the traditional gas stove ignition power supply and the electric control device power supply only rely on the battery, which shortens the service life of the battery, thereby prolonging the service life of the battery.

[0074] From the above technical solutions of the embodiments of the present application, the following technical effects can be obtained:

[0075] The embodiment of the present application sets the heat pipe and the thermoelectric conversion module on the gas stove body, so as to form a heat preservation area by the heat pipe, and then the energy of the gas stove combustion can be fully utilized, and the combustion utilization rate of the gas stove is improved. Further, the thermoelectric conversion module is attached to the lower surface of the heat preservation area, so that the thermoelectric conversion module converts the heat of the heat preservation area into electric energy, and then the thermoelectric conversion module can be used to replace the battery to supply power to the electric control device, thereby solving the pain point that the ignition power supply and the electric control power supply of the traditional gas stove only rely on the battery power supply, resulting in the short service life of the battery.

[0076] The structure shown in the embodiment only relates to part of the structure of the scheme of the present application, and does not constitute a limitation on the equipment to which the scheme of the present application is applied. The specific equipment can include more or fewer components than shown, or combine certain components, or have a different arrangement of components. It should be understood that the methods, devices, etc. disclosed in the embodiment can be implemented in other ways.

[0077] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A gas stove heat energy recycling device, characterized in that, The gas stove body (1) and the heat pipe (2), the thermoelectric conversion module (3) and the dual power supply switching module (4) arranged on the gas stove body (1); One end of the heat pipe (2) is annularly wound at equal intervals between a plurality of gas stove heads (12) in the gas stove body (1) to form a heat preservation area (21), and the other end of the heat pipe (2) is wound outside the gas stove head (12) in the gas stove body (1), the heat output by the gas stove head (12) in use can be transmitted to the heat preservation area (21) through the heat pipe (2); The thermoelectric conversion module (3) is located on the lower side of the heat preservation area (21) and is attached to the lower surface of the heat preservation area (21), the thermoelectric conversion module (3) is used for converting the heat of the heat preservation area (21) into electrical energy, the first input end of the dual power supply switching module (4) is used for connecting with the battery power supply (5), the second input end of the dual power supply switching module (4) is connected with the output end of the thermoelectric conversion module (3), and the output end of the dual power supply switching module (4) is used for connecting with the electric control device. The dual power supply switching module (4) includes a switching unit (41), a boost output unit (42) and a control unit (43); the first input end of the switching unit (41) is used for connecting with the battery power supply (5), the second input end of the switching unit (41) is connected with the first output end of the boost output unit (42), the output end of the switching unit (41) is connected with the gas stove igniter (13) and the input end of the control unit (43) respectively, the input end of the boost output unit (42) is connected with the output end of the thermoelectric conversion module (3), and the second output end of the boost output unit (42) is connected with the input end of the control unit (43); The switching unit (41) is used for controlling the battery power supply (5) to supply power to the gas stove igniter (13), when the battery power supply (5) supplies power to the gas stove igniter (13) and the gas stove igniter (13) is in the ignition state, the thermoelectric conversion module (3) outputs a voltage signal to the boost output unit (42), the boost output unit (42) outputs a high level signal to the switching unit (41) and the control unit (43) based on the voltage signal, so that the switching unit (41) switches the battery power supply (5) to supply power to the control unit (43) to the thermoelectric conversion module (3) to supply power to the control unit (43) based on the high level signal.

2. The thermal energy recycling device for gas stove according to claim 1, characterized in that, The thermoelectric conversion module (3) includes a thermoelectric generation unit (31) and a heat dissipation unit (32); The heat absorption surface of the thermoelectric generation unit (31) is attached to the lower surface of the heat preservation area (21) to form a power generation hot end, the cold surface of the thermoelectric generation unit (31) is attached to the heat dissipation unit (32) to form a power generation cold end, and there is a potential difference between the power generation hot end and the power generation cold end.

3. The thermal energy recycling device for gas stove according to claim 1, characterized in that, The voltage boosting output unit (42) comprises a voltage boosting subunit (421) and a power supply output subunit (422); The input end of the voltage boosting subunit (421) is connected with the output end of the thermoelectric conversion module (3), the output end of the voltage boosting subunit (421) is connected with the input end of the power supply output subunit (422), the first output end of the power supply output subunit (422) is connected with the second input end of the switching unit (41), and the second output end of the power supply output subunit (422) is connected with the input end of the control unit (43); The voltage boosting subunit (421) is used for boosting the voltage signal output by the thermoelectric conversion module (3) to obtain a voltage boosting signal, and transmitting the voltage boosting signal to the power supply output subunit (422), so that the power supply output subunit (422) outputs a high-level signal to the switching unit (41) and the control unit (43) based on the voltage boosting signal.

4. The thermal energy recycling device for gas stove according to claim 1, characterized in that, The switching unit (41) comprises a triode (411) and a first resistor (412); The emitter of the triode (411) is connected with the battery power supply (5), the collector of the triode (411) is respectively connected with one end of the gas stove igniter (13) and the input end of the control unit (43), the base of the triode (411) is respectively connected with one end of the first resistor (412) and the first output end of the power supply output subunit (422) in the voltage boosting output unit (42), and the other end of the first resistor (412) and the other end of the gas stove igniter (13) are grounded.

5. The thermal energy recycling device for gas stove according to claim 3, characterized in that, The voltage boosting subunit (421) comprises a voltage boosting chip (4211), a first capacitor (4212), a second capacitor (4213) and an inductor (4214); The input end of the voltage boosting chip (4211) is respectively connected with the output end of the thermoelectric conversion module (3), one end of the first capacitor (4212) and one end of the inductor (4214), the output end of the voltage boosting chip (4211) is respectively connected with one end of the second capacitor (4213) and the input end of the power supply output subunit (422), and the other end of the inductor (4214) is connected with the inductor (4214) pin of the voltage boosting chip (4211).

6. A gas stove heat energy recycling device, characterized in that, The gas stove body (1), the heat-conducting pipe (2), the thermoelectric conversion module (3) and the double-power switching module (4) are arranged on the gas stove body (1); One end of the heat-conducting pipe (2) is annularly wound at equal intervals between a plurality of gas stove heads (12) in the gas stove body (1) to form a heat preservation area (21), and the other end of the heat-conducting pipe (2) is wound outside the gas stove head (12) in the gas stove body (1), and the heat output by the gas stove head (12) in use can be transmitted to the heat preservation area (21) through the heat-conducting pipe (2); The thermoelectric conversion module (3) is located on the lower side of the heat preservation area (21) and is attached to the lower surface of the heat preservation area (21), the thermoelectric conversion module (3) is used for converting the heat of the heat preservation area (21) into electrical energy, the first input end of the dual power supply switching module (4) is used for being connected with the battery power supply (5), the second input end of the dual power supply switching module (4) is connected with the output end of the thermoelectric conversion module (3), and the output end of the dual power supply switching module (4) is used for being connected with the electric control device; The dual power supply switching module (4) includes a switching unit (41), a voltage boosting output unit (42) and a control unit (43); the first input end of the switching unit (41) is used for being connected with the battery power supply (5), the second input end of the switching unit (41) is connected with the output end of the control unit (43), the output end of the switching unit (41) is connected with the gas stove igniter (13) and the input end of the control unit (43) respectively, the input end of the voltage boosting output unit (42) is connected with the output end of the thermoelectric conversion module (3), and the output end of the voltage boosting output unit (42) is connected with the input end of the control unit (43); The control unit (43) is used for detecting the output voltage value of the voltage boosting output unit (42), when it is detected that the output voltage value of the voltage boosting output unit (42) meets the first preset voltage condition, the control unit (43) outputs a low-level control signal to the switching unit (41), the switching unit (41) is in a conduction state based on the low-level control signal, and the battery power supply (5) supplies power to the gas stove igniter (13), when the battery power supply (5) supplies power to the gas stove igniter (13) and the gas stove igniter (13) is in an ignition state, the control unit (43) outputs a high-level control signal to the switching unit (41), and the switching unit (41) switches the battery power supply (5) to supply power to the control unit (43) to the thermoelectric conversion module (3) to supply power to the control unit (43) based on the high-level control signal.

7. The thermal energy recovery device for gas stove according to claim 6, characterized in that, The voltage boosting output unit (42) includes a voltage boosting sub-unit (421) and a power supply output sub-unit (422); The input end of the voltage boosting sub-unit (421) is connected with the output end of the thermoelectric conversion module (3), the output end of the voltage boosting sub-unit (421) is connected with the input end of the power supply output sub-unit (422), and the output end of the power supply output sub-unit (422) is connected with the input end of the control unit (43); The voltage boosting sub-unit (421) is used for boosting the voltage signal output by the thermoelectric conversion module (3) to obtain a voltage boosting signal and transmitting the voltage boosting signal to the power supply output sub-unit (422), so that the power supply output sub-unit (422) supplies power to the control unit (43) based on the voltage boosting signal.

8. The thermal energy recovery device for gas stove according to claim 6, characterized in that, The switching unit (41) comprises a triode (411) and a first resistor (412); The emitter of the triode (411) is connected with the battery power supply (5), the collector of the triode (411) is connected with one end of the gas stove igniter (13) and the input end of the control unit (43) respectively, the base of the triode (411) is connected with one end of the first resistor (412) and the output end of the control unit (43) respectively, the other end of the first resistor (412) and the other end of the gas stove igniter (13) are grounded.

9. The thermal energy recovery device for gas stove according to claim 7, characterized in that, The boost sub-unit (421) comprises a boost chip (4211), a first capacitor (4212), a second capacitor (4213) and an inductor (4214); The input end of the boost chip (4211) is connected with the output end of the thermoelectric conversion module (3), one end of the first capacitor (4212) and one end of the inductor (4214) respectively, the output end of the boost chip (4211) is connected with one end of the second capacitor (4213) and the input end of the power supply output sub-unit (422) respectively, the other end of the inductor (4214) is connected with the inductor (4214) pin of the boost chip (4211).

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