阅读说明：本技术 一种等离子体火焰灶电路及等离子体火焰灶 (Plasma flame stove circuit and plasma flame stove ) 是由 周华龙 于 2021-07-30 设计创作，主要内容包括：本发明公开了一种等离子体火焰灶电路及等离子体火焰灶,包括整流滤波模块、主控模块、N个逆变模块、N个升压变压器、M个电容以及M个等离子体火焰发生头,整流滤波模块连接N个逆变模块,主控模块连接N个逆变模块,每个逆变模块连接一个升压变压器,每个升压变压器连接至少一个电容。本发明通过主控模块控制N个逆变模块通路或断路实现等离子体火焰灶的输出功率大小的粗调；通过主控模块控制改变N个逆变模块的工作频率,改变对应升压变压器的工作功率,改变对应电容上的等离子体火焰发生头的输出功率,以实现等离子体火焰灶的输出功率大小的微调；控制灶具整体输出功率大小,实现对灶具火力大小和火力分布的调控。(The invention discloses a plasma flame stove circuit and a plasma flame stove, which comprise a rectifying and filtering module, a main control module, N inversion modules, N step-up transformers, M capacitors and M plasma flame generating heads, wherein the rectifying and filtering module is connected with the N inversion modules, the main control module is connected with the N inversion modules, each inversion module is connected with one step-up transformer, and each step-up transformer is connected with at least one capacitor. The invention realizes the rough adjustment of the output power of the plasma flame stove by controlling the connection or disconnection of N inversion modules through the main control module; the working frequency of the N inversion modules is controlled and changed through the main control module, the working power of the corresponding step-up transformer is changed, and the output power of the plasma flame generating head on the corresponding capacitor is changed, so that the fine adjustment of the output power of the plasma flame stove is realized; the integral output power of the cooker is controlled, and the firepower distribution of the cooker are regulated and controlled.)

1. A plasma flame stove circuit is characterized by comprising a rectifying and filtering module, a main control module, N inverter modules, N boosting transformers, M capacitors and M plasma flame generating heads, wherein the rectifying and filtering module is connected with the N inverter modules, the main control module is connected with the N inverter modules, each inverter module is connected with one boosting transformer, each boosting transformer is connected with at least one capacitor, each capacitor is connected with one plasma flame generating head, and N and M are positive integers greater than or equal to 1;

the rectification filtering module is used for being connected with a mains supply and rectifying, filtering and converting alternating current input by the mains supply to output direct current on each inversion module;

each inversion module is used for inverting the direct current input by the rectification filter module into alternating current;

each step-up transformer is used for boosting the alternating current input by the corresponding inversion module to a working voltage required by ignition of the plasma flame stove;

each plasma flame generating head is at a certain distance from the bottom of a pot placed on the plasma flame stove, and when high-voltage alternating current output by N step-up transformers is input to the corresponding plasma flame generating head through M capacitors, the high-voltage alternating current punctures air between the corresponding plasma flame generating head and the bottom of the pot to form a plasma flame bundle so as to heat the bottom of the pot;

the main control module is used for controlling the on-off of each inversion module to enable at least one plasma flame generating head corresponding to the inversion module to be ignited or not to be ignited so as to realize the rough adjustment of the output power of the plasma flame stove, and is also used for controlling the working frequency of each inversion module to change the working power of N boosting transformers corresponding to the inversion module so as to realize the fine adjustment of the working power of M plasma flame generating heads corresponding to the inversion module.

2. The plasma flame burner circuit of claim 1, wherein each of the plasma flame generating heads is arranged in a sequence at equal intervals and forms at least one row and at most N rows of annular arrangements.

3. The plasma flame burner circuit of claim 1, further comprising a phase-locked loop connected to each of the inverter modules for boosting a power factor of each of the inverter modules.

4. The plasma flame stove circuit of claim 1, wherein the rectifying and filtering module is connected to the mains power through a plug.

5. The plasma flame stove circuit of claim 4, further comprising a power metering module connected between the N inverter modules and the rectifying and filtering module or connected between the plug and the rectifying and filtering module and connected with the main control module, for detecting the input power of the plasma flame stove, wherein the main control module controls the N inverter modules to be turned on, turned off or adjusted corresponding to the operating frequency of the inverter modules according to the input power of the power metering module.

6. The plasma flame stove circuit of claim 4, further comprising N power metering modules connected between the N inverter modules and the N step-up transformers and connected to the main control module, wherein the N power metering modules are used for detecting the input power of the plasma flame stove, and the main control module controls the N inverter modules to be turned on, turned off or adjusted in working frequency corresponding to the inverter modules according to the input power of the power metering modules.

7. The plasma flame stove circuit of claim 1, wherein the main control module can control an operating frequency of the inverter module to operate the inverter module and the step-up transformer on the inverter module in a resonant state.

8. A plasma flame cooker comprising the plasma flame cooker circuit as claimed in any one of claims 1 to 7.

Technical Field

The invention belongs to the technical field of cookers, and particularly relates to a plasma flame stove circuit and a plasma flame stove.

Background

Gas cooking utensils, electromagnetism stove and electric ceramic stove etc. are the cooking utensils that the daily frequency of use is higher for China's common people at present. The gas cooker uses non-renewable petrochemical energy, toxic and greenhouse gases such as carbon monoxide and carbon dioxide can be generated by combustion, the gas is also toxic, and particularly, the canned liquefied gas is like an indefinite bomb and threatens the life and property safety of people; the construction period of the pipeline natural gas conveying pipeline is long, the cost is high, the coverage rate is not high at present, and the use convenience is not good. Although the cooking utensils such as induction cookers, electric ceramic cookers and the like use electric energy, have good convenience and safety, the cooking utensils do not have open fire and are not in line with the cooking habit of 'quick frying' of 'fierce fire and good dish' of Chinese people, so that most of the Chinese people still adopt gas cooking utensils in kitchens.

The plasma flame stove has the advantages of the two types of stoves, generates plasma flame (open fire) to heat a pot based on thermal plasma and taking electric energy as direct energy, and meets the 'stir-frying' cooking habit of 'fierce fire and good dish' of Chinese people. The plasma flame stove almost has no carbon emission, generates flame similar to a gas stove to heat and cook the cookware without consuming any other energy except electric energy, and has the advantages of environmental protection, energy conservation, emission reduction, convenient use, high efficiency and the like.

Plasma is an ionized gaseous substance consisting of positive and negative ions generated by ionizing atoms and radicals, from which part of electrons are deprived, and is approximately electrically neutral, and is called plasma. The plasma flame stove is a novel stove which utilizes the characteristics of plasma, uses high-voltage electricity to breakdown air to form thermal plasma, converts electric energy into heat energy, and generates thermal plasma beams with similar flame characteristics to heat a pot for cooking.

The flame of the plasma flame generating head of the existing cooker applied to the plasma flame cooker circuit is not uniformly distributed, so that the cooker cannot be uniformly heated, and the cooking effect is influenced; and the plasma flame stove has the disadvantages of complex circuit design, low circuit efficiency and high use cost.

Disclosure of Invention

Accordingly, the present invention is directed to a plasma flame oven circuit and a plasma flame oven that can solve the above problems.

A plasma flame stove circuit comprises a rectifying and filtering module, a main control module, N inverter modules, N step-up transformers, M capacitors and M plasma flame generating heads, wherein the rectifying and filtering module is connected with the N inverter modules, the main control module is connected with the N inverter modules, each inverter module is connected with one step-up transformer, each step-up transformer is connected with at least one capacitor, each capacitor is connected with one plasma flame generating head, and the N and the M are positive integers greater than or equal to 1;

the rectification filtering module is used for being connected with a mains supply and rectifying and filtering alternating current input by the mains supply to output direct current to each inversion module;

each inversion module is used for inverting the direct current input by the rectification filter module into alternating current;

each step-up transformer is used for boosting the alternating current input by the corresponding inversion module to a working voltage required by ignition of the plasma flame stove;

each plasma flame generating head is at a certain distance from the bottom of a pot placed on the plasma flame stove, and when high-voltage alternating current output by N step-up transformers is input to the corresponding plasma flame generating head through M capacitors, the high-voltage alternating current punctures air between the corresponding plasma flame generating head and the bottom of the pot to form a plasma flame bundle so as to heat the bottom of the pot;

the main control module is used for controlling the on-off of each inversion module to enable at least one plasma flame generating head corresponding to the inversion module to be ignited or not to be ignited so as to realize the rough adjustment of the output power of the plasma flame stove, and is also used for controlling the working frequency of each inversion module to change the working power of N boosting transformers corresponding to the inversion module so as to realize the fine adjustment of the working power of M plasma flame generating heads corresponding to the inversion module.

Furthermore, each plasma flame generating head is sequentially arranged at equal intervals and forms at least one row and at most N rows of annular arrangement.

Furthermore, the plasma flame stove circuit further comprises a phase-locked loop connected with each inversion module, and the phase-locked loop is used for improving the power factor of each inversion module.

Further, the rectification filter module is connected with the mains supply through a plug.

Furthermore, the plasma flame stove circuit further comprises a power metering module connected between the N inverter modules and the rectifying and filtering module or connected between the plug and the rectifying and filtering module and connected with the main control module, and the power metering module is used for detecting the input power of the plasma flame stove, and the main control module controls the N inverter modules to be switched on, switched off or adjusted to work frequency corresponding to the inverter modules according to the input power of the power metering module.

Furthermore, the plasma flame stove circuit further comprises N power metering modules which are connected between the N inverter modules and the N step-up transformers and connected with the main control module, and the N power metering modules are used for detecting the input power of the plasma flame stove, and the main control module controls the N inverter modules to be switched on, switched off or adjusted to work frequency corresponding to the inverter modules according to the input power of the power metering modules.

Furthermore, the main control module can control the working frequency of the inversion module, so that the corresponding inversion module and the boosting transformer on the corresponding inversion module work in a resonance state.

The invention also provides a plasma flame stove which comprises the plasma flame stove circuit.

Compared with the prior art, the plasma flame stove circuit and the plasma flame stove provided by the invention realize the rough adjustment of the output power of the plasma flame stove by controlling the connection or disconnection of the N inverter modules through the main control module; the working frequency of the N inversion modules is controlled and changed through the main control module, the working power of the corresponding step-up transformer is changed, and the output power of the plasma flame generating head on the corresponding capacitor is changed, so that the fine adjustment of the output power of the plasma flame stove is realized; the integral output power of the cooker is controlled, so that the firepower and the firepower distribution of the cooker are regulated and controlled; and the main control module controls the working frequency of the inversion module so that the corresponding inversion module and the boosting transformer on the corresponding inversion module normally work in a resonance state, and at the moment, the working efficiency of the circuit is highest, the energy consumption is minimum, and therefore, the power consumption is reduced, and the use cost is reduced.

Drawings

Fig. 1 is a block diagram of a plasma flame stove circuit according to the present invention.

FIG. 2 is a block diagram of a first embodiment of a plasma flame stove circuit.

Fig. 3 is a block diagram of a second embodiment of a plasma flame stove circuit.

Fig. 4 is a block diagram of a third embodiment of a plasma flame stove circuit.

Detailed Description

Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

As shown in fig. 1 to 4, which are schematic structural diagrams of a plasma flame stove circuit and a plasma flame stove provided by the present invention. A plasma flame stove circuit comprises a rectifying and filtering module 10, a main control module 20, N inverter modules 30, N boosting transformers 40, M capacitors 50 and M plasma flame generating heads 60, wherein the rectifying and filtering module 10 is connected with the N inverter modules 30, the main control module 20 is connected with the N inverter modules 30, each inverter module 30 is connected with one boosting transformer 40, each boosting transformer 40 is connected with at least one capacitor 50, each capacitor 50 is connected with one plasma flame generating head 60, and both N and M are positive integers greater than or equal to 1;

the rectification and filtering module 10 is used for being connected with a mains supply and rectifying and filtering alternating current input by the mains supply to output direct current to each inversion module 30;

each of the inverting modules 30 is configured to invert the direct current input by the rectifying and filtering module 10 into an alternating current;

each step-up transformer 40 is used for stepping up the alternating current input by the corresponding inversion module 30 to the working voltage required by ignition of the plasma flame stove;

each plasma flame generating head 60 is spaced from the bottom of a pot placed on the plasma flame stove, and when high-voltage alternating current output by the N step-up transformers 40 is input to the corresponding plasma flame generating head 60 through the M capacitors 50, the high-voltage alternating current punctures air between the corresponding plasma flame generating head 60 and the bottom of the pot to form a plasma flame bundle so as to heat the bottom of the pot;

the main control module 20 is configured to control each of the inverter modules 30 to be turned on or off, so that at least one of the plasma flame generation heads 60 corresponding to the inverter module 30 is ignited or not ignited, thereby realizing coarse adjustment of the output power of the plasma flame cooker, and is further configured to control the operating frequency of each of the inverter modules 30, so as to change the operating power of the N step-up transformers 40 corresponding to the inverter module 30, thereby realizing fine adjustment of the operating power of the M plasma flame generation heads 60 corresponding to the inverter module 30.

For example, the N inversion modules 30 are divided into a first inversion module 31, a second inversion module 32, a third inversion module 33, and the like, and it is assumed that the maximum output power controlled by the first inversion module 31 is 500W, the maximum output power controlled by the second inversion module 32 is 1000W, and the maximum output power controlled by the third inversion module 33 is 1500W; when a user uses the cooker applying the plasma flame cooker circuit, the cooker is connected with mains supply, alternating current input by the mains supply is rectified, filtered and converted through the rectifying and filtering module 10, direct current is output to each inversion module 30, and the cooker is placed on the cooker; when the cookware needs to be heated by flame with 500W power, the main control module 20 controls the first inverter module 31 to be opened, and the second inverter module 32 and the third inverter module 33 to be closed, so that the cookware can be heated by flame with 500W power; when the cookware needs to be heated by flame with 1500W power, the main control module 20 controls the first inverter module 31 and the second inverter module 32 to be opened, and the third inverter module 33 is closed, so that the cookware can be heated by flame with 1500W power; when the cookware needs to be heated by flame with 3000W power, the main control module 20 controls the first inverter module 31, the second inverter module 32 and the third inverter module 33 to be opened, so that the cookware can be heated by flame with 3000W power; namely, the main control module 20 controls the on/off of the N inverter modules 30 to realize the rough adjustment of the output power of the plasma flame stove.

The M step-up transformers 40 corresponding to the first, second, and third inverter modules 31, 32, and 33 are divided into a first step-up transformer 41, a second step-up transformer 42, and a third step-up transformer 43.

Furthermore, when the cookware needs to be heated by flame with 300W power, the main control module 20 controls the first inverter module 31 to be opened, the second inverter module 32 and the third inverter module 33 to be closed, the main control module 20 controls the working frequency of the first inverter module 31, changes the working power corresponding to the first step-up transformer 41, and changes the output power of the plasma flame generating head 60 on the corresponding capacitor 50, so that the cookware can be heated by flame with 300W power; when the cookware needs flame heating with 1200W power, the main control module 20 controls the first inverter module 31 and the second inverter module 32 to be opened, the third inverter module 33 is closed, at this time, the first inverter module 31 works at the maximum power of 500W, the main control module 20 controls the second inverter module 32 to change the working frequency thereof, so as to change the working power of the corresponding boost second voltage transformer 42, so as to change the output power of the plasma flame generating head 60 on the corresponding capacitor 50 to 700W, and thus the cookware can carry out flame heating with 1200W power on the cookware; when the cookware needs to be heated by flame with 2300W power, the main control module 20 controls the first inverter module 31, the second inverter module 32 and the third inverter module 33 to be opened, at this time, the first inverter module 31 works at 500W of maximum power, the second inverter module 32 works at 1000W of maximum power, and the main control module 20 controls the third inverter module 33 to change the working frequency of the third inverter module, so as to change the working power of the corresponding third step-up transformer 43, so as to change the output power of the plasma flame generating head 60 on the corresponding capacitor 50 to 800W, thereby realizing that the cookware can be used for heating flame with 2300W power on the cookware; namely, the main control module 20 controls and changes the working frequency of the N inverter modules 30 to change the working power of the corresponding step-up transformer 40, so as to change the output power of the plasma flame generating head 60 on the corresponding capacitor 50, and to realize the fine adjustment of the output power of the plasma flame stove; thereby realize the regulation and control to cooking utensils firepower size and firepower distribution to make the pan heating more even.

Each of the plasma flame generation heads 60 is sequentially arranged at equal intervals and forms at least one row and at most N rows of annular arrangements. When every plasma flame generation head 60 inserts high-tension electricity and produces the plasma gas flow, M plasma flame generation heads 60 can produce more even heat to the realization has improved the stability and the security of generating heat of cooking utensils to the pan even heating, utilizes M evenly distributed's resonance electric capacity 50 can make the plasma flame generation head 60 that corresponds concentrate and produce more stable heat, reaches the best culinary art effect to the pan.

It should be noted that, taking 30 plasma flame generating heads as an example, 5 plasma flame generating heads 60 in an inner row of rings, that is, 5 plasma flame generating heads 60 controlled by the first inverter module 31, the maximum output power is 500W; 10 plasma flame generating heads 60 in the middle row are controlled by the second inverter module 32, and the maximum output power is 1000W; 15 plasma flame generating heads 60 with an outer ring shape are arranged, 15 plasma flame generating heads 60 controlled by the third inversion module 33 are arranged, and the maximum output power is 1500W; according to cooking requirements, the whole row of plasma flame generating heads 60 in the inner row, the middle row and the outer row can be sequentially ignited or extinguished by controlling the on-off of the first inversion module 31, the second inversion module 32 and the third inversion module 33; the working frequencies of the first inversion module 31, the second inversion module 32 and the third inversion module 33 can be respectively controlled, so that the working powers of the plasma flame generating heads 60 arranged in the inner row, the middle row and the outer row are respectively adjusted, and the plasma flame generating heads are respectively ignited or extinguished, and the effect of uniformly heating the cookware is achieved.

The plasma flame stove circuit further comprises a phase-locked loop 70 connected with each of the inverter modules 30 for boosting the power factor of each of the inverter modules 30. The inversion module 30 can be adjusted by a Phase Locked Loop (PLL) 70, which is a negative feedback control system that uses the voltage generated by phase synchronization to tune the vco to generate the target frequency; the phase-locked loop 70 may be a digital phase-locked loop 70(DPLL), or other phase-locked loops 70, and the phase-locked loop 70 may improve the power factor of the circuit, and thus the operating efficiency of each inverter module 30.

The rectifying and filtering module 10 is connected with the mains supply through a plug 80.

The plasma flame stove circuit further comprises a power metering module 90 connected between the N inverter modules 30 and the rectifying and filtering module 10 or connected between the plug 80 and the rectifying and filtering module 10 and connected with the main control module 20, and is used for detecting the input power of the plasma flame stove, and the main control module 20 controls the N inverter modules 30 to be connected, disconnected or adjusted to correspond to the working frequency of the inverter modules 30 according to the input power of the power metering module 90.

In the first embodiment, the power metering module 90 is connected between the N inverter modules 30 and the rectifying and filtering module 10;

in the second embodiment, the power metering module 90 is connected between the plug 80 and the rectifying and filtering module 10;

in a third embodiment, the plasma flame stove circuit further includes N power metering modules 90 connected between the N inverter modules 30 and the N step-up transformers 40 and connected to the main control module 20, and configured to detect an input power of the plasma flame stove, and the main control module 20 controls the N inverter modules 30 to be turned on, turned off, or adjusted according to the input power of the power metering modules 90, and the operating frequency of the inverter modules 30 is adjusted.

Can be arranged at one of the three positions according to other actual requirements.

The main control module 20 may control the operating frequency of the inverter module 30 to enable the inverter module 30 to operate at a maximum power value, and normally, the inverter module 30 and the step-up transformer 40 on the inverter module 30 operate in a resonant state. In general, the main control module 20 controls the operating frequency of each inverter module 30, so that each group of inverter modules 30 and the transformer 40 operate in a resonant state, and at this time, the output power of the plasma flame stove circuit is the highest, the efficiency is the highest, and the energy consumption is the lowest.

The plasma flame stove comprises the plasma flame stove circuit.

Compared with the prior art, the plasma flame stove circuit and the plasma flame stove provided by the invention realize the rough adjustment of the output power of the plasma flame stove by controlling the on-off of the N inversion modules 30 through the main control module 20; the main control module 20 controls and changes the working frequency of the N inverter modules 30 again, changes the working power of the corresponding step-up transformer 40, and changes the output power of the plasma flame generating head 60 on the corresponding capacitor 50, so as to realize the fine adjustment of the output power of the plasma flame stove; the integral output power of the stove is controlled, so that the regulation and control of the fire intensity and the fire distribution of the stove are realized; moreover, the main control module 20 controls the operating frequency of the inverter modules 30, so that the corresponding inverter modules 30 and the step-up transformers 40 on the corresponding inverter modules 30 are usually operated in a resonant state, and at this time, the circuit has the highest operating efficiency and the least energy consumption, thereby reducing the power consumption and the use cost.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, and any modifications, equivalents or improvements that are within the spirit of the present invention are intended to be covered by the following claims.