CN215951552U - High-frequency electromagnetic induction heater with stable frequency - Google Patents
High-frequency electromagnetic induction heater with stable frequency Download PDFInfo
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- CN215951552U CN215951552U CN202121539322.5U CN202121539322U CN215951552U CN 215951552 U CN215951552 U CN 215951552U CN 202121539322 U CN202121539322 U CN 202121539322U CN 215951552 U CN215951552 U CN 215951552U
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Abstract
The utility model discloses a high-frequency electromagnetic induction warmer with stable frequency, which comprises a warmer main body, a power supply module, a frequency tracking assembly, a control module, a heating assembly, a circulating heating system and a heating medium storage box, wherein the power supply module is connected with the frequency tracking assembly; the circulating heating system comprises a circulating pump, a pipeline and a heating medium sheet which are sequentially connected, the heating medium sheet is communicated with the pipeline to form a closed circulating structure, a heating medium is arranged inside the heating medium sheet and the pipeline, the circulating pump is arranged at one end of the pipeline, a heating medium discharge port is arranged at the other end of the pipeline, and a heating medium storage tank is connected to the upper end of the heating medium sheet; the power supply module is respectively and electrically connected with the frequency tracking assembly and the heating assembly to form a resonant heating system with stable frequency, and the heating assembly is annularly arranged on the periphery of the pipeline in a non-contact manner; the control module comprises a relay and a first temperature sensor, the relay is respectively connected with the power supply module and the circulating pump, and the first temperature sensor is arranged on the pipeline. The utility model realizes stable high-frequency electromagnetic induction heating so as to realize high-efficiency energy-saving heating.
Description
Technical Field
The utility model relates to the technical field of high-frequency electromagnetic induction heating, in particular to a high-frequency electromagnetic induction warmer with stable frequency.
Background
At present, the heating mode mainly comprises two ways of reaction heat generated by direct combustion of coal and gas and conversion of electric energy into heat energy besides solar heating, and the heat energy is obtained through electric conversion, namely, the electric heater generally speaking. The manufacturing cost of the solar heating equipment is relatively high, and the stable collection of solar energy is difficult to realize.
The utilization rate of reaction heat generated by direct combustion of coal, gas and the like is low, and pollution is generated by combustion. Various types of electric heaters have defects, such as easy aging of heating wires, easy open fire, and uncomfortable dryness of blown warm air; the electric heating tube heating oil heater type electric heater has the defects of slow temperature rise and prevention of oil leakage; the infrared electric heater also heats through the electric heating wire, the heat distribution is uneven, and visible light and open fire can appear; although the electric heating film electric heater adopts the advanced electric heating film heating technology to heat the indoor air to achieve the heating purpose, the temperature rise is slow, and the electric heating film electric heater cannot meet water; the semiconductor type PTC electric heater is fast in temperature rise and high in energy efficiency, but the requirement for heat dissipation is high, and the situation of uneven heat dissipation can occur when a heat dissipation assembly is unqualified. Based on the above situation, the electromagnetic induction heating warmer with low cost and high efficiency will be a new development trend.
Application has been through research discovery, and current room heater has following drawback:
1. under the condition of high-frequency work of the existing electromagnetic induction heating warmer, the frequency cannot be stabilized, and the condition of unstable heating is easy to generate.
2. The existing electromagnetic induction warmer is easy to threaten the safety of users when overheating occurs due to unstable electromagnetic frequency in the warming process.
3. The existing electromagnetic induction heater generally needs to be connected with a water pipe to supplement internal moisture, so that the position and installation limitation of the heater are large, and the heater cannot be flexibly moved.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical defects that the existing warmer is unstable and inflexible, the utility model provides a high-frequency electromagnetic induction warmer with stable frequency.
In order to solve the problems, the utility model is realized according to the following technical scheme:
the utility model discloses a high-frequency electromagnetic induction warmer with stable frequency, which comprises a warmer main body, a power supply module, a frequency tracking assembly, a control module, a heating assembly, a circulating heating system and a heating medium storage box, wherein the power supply module is connected with the frequency tracking assembly;
the circulating heating system comprises a circulating pump, a pipeline and a heating medium piece which are sequentially connected, the heating medium is communicated with the pipeline to form a closed circulating structure, a heating medium is arranged inside the heating medium and the pipeline, the circulating pump is arranged at one end of the pipeline, a heating medium outlet is formed in the other end of the pipeline, and the heating medium storage tank is connected to the upper end of the heating medium;
the power supply module is electrically connected with the frequency tracking assembly and the heating assembly respectively to form a resonant heating system with stable frequency, and the heating assembly is annularly arranged on the periphery of the pipeline in a non-contact manner;
the control module comprises a relay and a first temperature sensor, the relay is respectively connected with the power module and the circulating pump, and the first temperature sensor is arranged on the pipeline.
As a preferred implementation, the power module includes a power main body, an a/D converter, an inverter circuit, a power controller, and a resonant capacitor.
As a further preferred implementation, the power supply main body is connected to an external input power grid, the a/D converter is connected to the power supply main body, the inverter circuit is connected to the a/D converter, the inverter circuit is respectively connected to the power supply controller and the resonant capacitor, the resonant capacitor is connected to the frequency tracking module, and the frequency tracking module is connected to the heating component.
As a further preferred implementation, the frequency tracking component includes a filter, a voltage regulation circuit, and a pulse width modulation circuit.
As a specific preferred implementation, the high-frequency power supply control module and the frequency tracking module are integrally arranged.
As a preferred implementation, further comprising: a room temperature detection assembly including a second temperature sensor, the room temperature detection assembly being electrically connected to the relay.
As a preferable implementation, the structure of the heating radiator is one of a plate type, a column type, a fin type, a plug welding type, a composite type and a vacuum superconducting type.
As a further preferred implementation, the radiator is made of one of cast iron, steel, aluminum and copper; or the radiator is made of a composite material of a plurality of materials of cast iron, steel, aluminum and copper.
As a specific preferred implementation, the heating component is an electromagnetic induction coil.
As a specific preferred implementation, the power supply main body is a variable-frequency inverter power supply.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model heats the pipeline through high-frequency induction to heat the heating medium in the pipeline, thereby realizing heating air for heating. Through the high-frequency induction technology for heating element is under the condition of contactless pipeline, and the heat medium to in the pipeline carries out even and efficient heating, with the air that improves the radiator heating periphery high-efficiently, realizes the heating mode with the indirect heating air of high-frequency electromagnetic induction technology.
2. According to the utility model, the frequency tracking component is arranged in the warmer, so that the frequency of the high-frequency electromagnetic induction of the heating component is stable, the condition of frequency fluctuation is not easy to occur, and the working condition and the warming effect of the warmer are stable and reliable.
3. According to the utility model, the control module is arranged, so that the work of the heating component of the heater is automatically controlled by the temperature of the heating medium, the first temperature sensor is used for controlling the temperature of the pipeline, when the temperature of the pipeline is overhigh, the protection mechanism is started, and the relay is automatically controlled to cut off the power supply module and the circulating pump so as to stop the work of the heater and realize automatic high-temperature protection.
4. The utility model realizes internal circulation of the heating medium in the heater by arranging the heating medium storage box and the heating medium outlet, is easy to discharge and supplement, and makes the applicable position of the heater more flexible.
Drawings
Embodiments of the utility model are described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic structural diagram of a high-frequency electromagnetic induction warmer of the present invention;
FIG. 2 is an exploded view of the frequency temperature high frequency electromagnetic induction warmer of the present invention;
FIG. 3 is a schematic view of the internal connection structure of the high-frequency electromagnetic induction warmer of the present invention;
in the figure:
1. a warmer main body;
2. a power supply module;
3. a frequency tracking component;
4. a control module; 41. a relay; 42. a first temperature sensor;
5. a heat generating component;
6. a circulation heating system; 61. a circulation pump; 62. a pipeline; 63. heating radiators;
7. a heat medium storage box;
8. a room temperature detection assembly; 81. a second temperature sensor.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
When a feature or element is referred to herein as being "on" another feature or element, it can be directly on the other feature or element or intervening features and/or elements may also be present. In contrast, when a feature or element is referred to as being "directly on" another feature or element, there are no intervening features or elements present. It will also be understood that when a feature or element is referred to as being "connected," "attached," or "coupled" to another feature or element, it can be directly connected, attached, or coupled to the other feature or element or intervening features or elements may be present. In contrast, when one feature or element is referred to as being "directly connected," "directly attached" or "directly coupled" to another feature or element, there are no intervening features or elements present. Although described or illustrated with respect to one embodiment, the features and elements so described or illustrated may be applied to other embodiments. One skilled in the art will also appreciate that a structure or feature disposed "adjacent" another feature may have portions that overlap or underlie the adjacent feature.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. For example, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items and may be abbreviated as "/".
Spatially relative terms, such as "below," "lower," "below," "over," "upper," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can include both an orientation of above and below. The devices may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. Similarly, the terms "upward," "downward," "vertical," "horizontal," and the like are used herein for explanatory purposes only, unless specifically indicated otherwise.
Although the terms "first" and "second" may be used herein to describe various features/elements (including steps), these features/elements should not be limited by these terms unless the context indicates otherwise. These terms may be used to distinguish one feature/element from another feature/element. Thus, a first feature/element discussed below could be termed a second feature/element, and similarly, a second feature/element discussed below could be termed a first feature/element, without departing from the teachings of the present invention.
In this specification and the claims that follow, unless the context requires otherwise, the terms "comprise" and variations such as "comprises" and "comprising" mean that the various components can be used together in the methods and articles of manufacture (e.g., compositions and devices including devices and methods). For example, the term "comprising" will be understood to mean including any stated elements or steps, but not excluding any other elements or steps.
In general, any apparatus and methods described herein should be understood as being inclusive, but all or a subset of components and/or steps may alternatively be exclusive, and may be expressed as "consisting of, or alternatively" consisting essentially of, various components, steps, sub-components, or sub-steps.
As shown in fig. 1 to 3, the preferred structure of the high-frequency electromagnetic induction warmer with stable frequency is disclosed in the utility model.
As shown in fig. 1 to 3, the utility model discloses a high-frequency electromagnetic induction warmer with stable frequency, which comprises a warmer main body 1, a power module 2, a frequency tracking assembly 3, a control module 4, a heating assembly 5, a circulation heating system 6 and a heating medium storage tank, wherein the power module is connected with the frequency tracking assembly 3; the circulation heating system 6 comprises a circulation pump 61, a pipeline 62 and a heating medium sheet 63 which are connected in sequence, the heating medium sheet 63 is communicated with the pipeline 62 to form a closed circulation structure, the heating medium sheet 63 and the pipeline 62 are internally provided with heating medium, the circulation pump 61 is arranged at one end of the pipeline 62, the other end of the pipeline 62 is provided with a heating medium discharge port, and the heating medium storage tank is connected to the upper end of the heating medium sheet 63; the power module 2 is electrically connected with the frequency tracking component 3 and the heating component 5 respectively to form a resonant heating system with stable frequency, and the heating component 5 is annularly arranged on the periphery of the pipeline 62 in a non-contact manner; the control module 4 comprises a relay 41 and a first temperature sensor 42, the relay 41 is respectively connected with the power module 2 and the circulating pump 61, and the first temperature sensor 42 is arranged on the pipeline 62.
The utility model creatively applies the high-frequency electromagnetic induction technology to the field of the warmer, and the over-frequency electromagnetic induction technology heats the inside of the non-contact heating medium, does not consume the heating medium, does not generate harmful substances, has higher heating efficiency and ensures that the warmer is safer and more environment-friendly. The frequency tracking component 3 is arranged, so that sine waves in high-frequency electromagnetic induction are more stable, the working stability of the warmer is improved, and the heating effect of the warmer is more stable. On the other hand, the heater can be automatically started or closed according to the temperature by arranging the control module 4, and the heater is automatically controlled by a simple control structure controlled by the relay 41. In addition, the utility model enables the heat medium circulation in the warmer to be more stable and durable by arranging the heat medium storage box, and the heat medium storage box 7 can supplement the heat medium in the circulation heating system 6 at any time, so that the warmer does not need to be additionally communicated with the input pipeline 62, and the flexibility of the warmer is improved.
As shown in fig. 1 and 2, in the present embodiment, preferably, the warmer body 1 of the present invention is a rectangular box structure, and a clothes drying rod is disposed at an upper end of the warmer body 1, and the clothes drying rod is disposed to facilitate a user to air clothes on the warmer body 1. The lower surface of the warmer main body 1 is also provided with four pulley assemblies, and the arrangement of the pulley assemblies enables the warmer main body 1 to move easily.
The power supply module 2 is arranged in the warmer main body 1, the input end of the power supply module 2 is connected with an external power grid through a main switch, and the power grid is 220V or 380V. As a preferred implementation, the power module 2 includes a power main body, an a/D converter, an inverter circuit, a power controller, and a resonant capacitor. Furthermore, the power supply main body is a variable frequency inverter power supply, the power supply main body is connected with an external input power grid, the A/D converter is connected with the power supply main body, the inverter circuit is connected with the A/D converter, the inverter circuit is respectively connected with the power supply controller and the resonant capacitor, the resonant capacitor is connected with the frequency tracking module, and the frequency tracking module is connected with the heating assembly.
The frequency tracking component 3 of the present invention is used for monitoring and adjusting the frequency of electromagnetic induction, and preferably, the frequency tracking component 3 comprises a filter, a voltage stabilizing circuit and a pulse width modulation circuit. The high-frequency power supply control module 4 and the frequency tracking module are arranged in an integrated mode. This embodiment adopts the integrated setting of integral type for power module 2 and frequency tracking module can be integrated on the same circuit board, with the installation degree of difficulty that reduces the room heater.
After the alternating current of outside electric wire netting was input to power supply main body, power supply main body guides the alternating current to the AD converter, the AD converter converts the alternating current into the direct current, the direct current gets into inverter circuit and carries out the contravariant, export to electrical source controller and resonant capacitor, resonant capacitor converts the frequency of electricity into predetermined resonance sine wave, electrical source controller controls the sine wave, power module 2, form resonance heating system after frequency tracker and the 5 interconnect of heating element, the sine wave electric current that power module 2 produced is carried to heating element 5, and receive frequency tracker's control, in order to ensure current frequency's stability, thereby realize stable high frequency electromagnetic induction heating.
The control module 4 according to the present invention includes a relay 41 and a first temperature sensor 42, the first temperature sensor 42 is disposed in the pipe 62 to measure the real-time temperature of the high frequency electromagnetic induction heating, and when overheating occurs, the relay 41 is activated to stop the operation of the power module 2 and the circulation pump 61 to protect the warmer.
In a specific preferred embodiment, the heat generating component 5 is an electromagnetic induction coil, and the electromagnetic induction coil is disposed around the outer circumference of the pipe 62 to realize non-contact electromagnetic induction heating for heating the heat medium inside the pipe 62. In this embodiment, the heating element 5 is connected to the power module 2 and disposed at the lower end of the heater main body 1.
As shown in fig. 2 and 3, the circulation heating system 6 according to the present invention includes a circulation pump 61, a pipe 62 and a radiator 63, the pipe 62 and the radiator 63 connected in sequence form the circulation heating system 6 in which the internal heating medium can circulate, when the heating medium in the pipe 62 is heated by the heating module 5 through high-frequency electromagnetic induction, a vortex is generated to heat the internal heating medium, the circulation pump 61 is operated to flow the heating medium, and the heated heating medium is introduced into the radiator 63 to heat the external air through the radiator 63, thereby achieving a heating effect. The warmer body 1 is provided with a protective net at the periphery of the radiator 63. In this embodiment, the heat medium is water, and the circulation pump 61 is a water pump.
As a preferred implementation, the structure of the radiator 63 is one of a plate type, a column type, a fin type, a plug welding type, a composite type and a vacuum superconducting type, and the radiator 63 is made of one of cast iron, steel, aluminum and copper; alternatively, the radiator 63 is made of a composite material of several materials of cast iron, steel, aluminum and copper.
The heat medium storage box is arranged at the upper end of the radiator 63, the heat medium storage box 7 is in a rectangular box structure, the heat medium is preferably water in the utility model, and correspondingly, a water tap is arranged at a heat medium outlet.
In this embodiment, power module 2 and frequency tracking module set up in one side of room heater main part 1, and the same one side of room heater main part 1 still is provided with operating panel, and operating panel includes display module, input assembly and inside operating circuit board, and operating panel is connected with power module 2 to make the user pass through input assembly input instruction, realize issuing the instruction to power module 2, thereby realize the overall control to the room heater.
As a preferred implementation, the present invention further includes a room temperature detecting assembly 8, the room temperature detecting assembly 8 includes a second temperature sensor 81, and the room temperature detecting assembly 8 is electrically connected to the relay 41. The room temperature detection assembly 8, the power module 2, the frequency tracking assembly 3, the control module 4 and the operation panel are arranged in the same region and are positioned on one side of the warmer main body 1, a radiator 63 is arranged in the middle of the warmer main body 1, and the circulating pump 61, the pipeline 62 and the heating assembly 5 are arranged at the lower end of the warmer main body 1. By arranging the room temperature control component, the second temperature sensor 81 can detect the real-time room temperature to feed back to the warmer, and after the room temperature reaches the rated value, the room temperature detection component 8 controls the relay 41 to stop the operation of the warmer to prevent the over-high room temperature. The room temperature detection assembly 8 is matched with the control module 4, automatic control is achieved through a simple structure, and therefore the intelligence of the warmer is improved, and the use experience of a user is improved.
To sum up, in the present invention, first, the pipe 62 is heated by high frequency induction to heat the heating medium in the pipe 62, thereby heating air for heating. By means of the high-frequency induction technology, the heating component 5 can uniformly and efficiently heat the heating medium in the pipeline 62 under the condition that the heating component does not contact the pipeline 62, so that the heating radiator 63 can efficiently heat the air at the periphery, and the heating mode of indirectly heating the air by the high-frequency electromagnetic induction technology is realized. On the other hand, the frequency tracking component 3 is arranged in the warmer, so that the frequency of the high-frequency electromagnetic induction of the heating component 5 is stable, the frequency fluctuation is not easy to occur, and the working condition and the warming effect of the warmer are stable and reliable. In addition, the control module 4 is arranged, so that the operation of the heating component 5 of the warmer is automatically controlled by the temperature of the heating medium, the first temperature sensor 42 measures the temperature of the pipeline 62, when the temperature of the pipeline 62 is overhigh, a protection mechanism is started, and the relay 41 automatically controls to cut off the power supply module 2 and the circulating pump 61, so as to stop the operation of the warmer and realize automatic high-temperature protection. In addition, the heating medium storage box and the heating medium outlet are arranged, so that the heating medium in the heater realizes internal circulation, is easy to discharge and supplement, and is more flexible in applicable position.
Other structures of the high-frequency electromagnetic induction warmer with stable frequency described in the embodiment are referred to in the prior art.
While preferred embodiments of the present disclosure have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Numerous variations, changes, and substitutions will occur to those skilled in the art without departing from the utility model herein. It should be understood that various alternatives to the embodiments of the utility model described herein may be employed in practicing the utility model. Many different combinations of the embodiments described herein are possible and are considered part of this disclosure. Furthermore, all features discussed in connection with any one embodiment of the present disclosure may be readily adapted for use with other embodiments of the present disclosure. It is intended that the following claims define the scope of the utility model and that methods and structures within the scope of these claims and their equivalents be covered thereby.
While various illustrative embodiments have been described above, various changes may be made to the embodiments without departing from the scope of the utility model as described in the claims. For example, in alternative embodiments, the order in which the various described method steps are performed may generally be varied, and in other alternative embodiments, one or more method steps may be skipped altogether. Optional features of various device and system embodiments may be included in some embodiments and not in others.
Accordingly, the foregoing description is provided primarily for the purpose of illustration and should not be construed as limiting the scope of the utility model as set forth in the claims.
The included examples and illustrations of the present invention show, by way of illustration and not limitation, specific embodiments in which the subject matter may be practiced. As described above, other embodiments may be utilized and derived therefrom, such that structural and logical substitutions and changes may be made without departing from the scope of this disclosure. Such embodiments of the inventive subject matter may be referred to herein, individually or collectively, by the term "utility model" merely for convenience and without intending to voluntarily limit the scope of this application to any single utility model or utility model concept if more than one is in fact disclosed. Thus, although specific embodiments have been illustrated and described herein, any arrangement calculated to achieve the same purpose may be substituted for the specific embodiments shown. This disclosure is intended to cover any and all adaptations or variations of various embodiments. Combinations of the above embodiments, and other embodiments not specifically described herein, will be apparent to those of skill in the art upon reviewing the above description. Moreover, the logic flows depicted in the figures do not require the particular order shown, or sequential order, to achieve desirable results.
Claims (10)
1. The high-frequency electromagnetic induction warmer with stable frequency is characterized by comprising a warmer main body, a power supply module, a frequency tracking assembly, a control module, a heating assembly, a circulating heating system and a heating medium storage box, wherein the power supply module is connected with the frequency tracking assembly;
the circulating heating system comprises a circulating pump, a pipeline and a heating medium piece which are sequentially connected, the heating medium is communicated with the pipeline to form a closed circulating structure, a heating medium is arranged inside the heating medium and the pipeline, the circulating pump is arranged at one end of the pipeline, a heating medium outlet is formed in the other end of the pipeline, and the heating medium storage tank is connected to the upper end of the heating medium;
the power supply module is electrically connected with the frequency tracking assembly and the heating assembly respectively to form a resonant heating system with stable frequency, and the heating assembly is annularly arranged on the periphery of the pipeline in a non-contact manner;
the control module comprises a relay and a first temperature sensor, the relay is respectively connected with the power module and the circulating pump, and the first temperature sensor is arranged on the pipeline.
2. The frequency-stabilized high-frequency electromagnetic induction warmer of claim 1, wherein:
the power supply module comprises a power supply main body, an A/D converter, an inverter circuit, a power supply controller and a resonant capacitor.
3. The frequency-stabilized high-frequency electromagnetic induction warmer of claim 2, wherein:
the power supply main body is connected with an external input power grid, the A/D converter is connected with the power supply main body, the inverter circuit is connected with the A/D converter, the inverter circuit is respectively connected with the power supply controller and the resonant capacitor, the resonant capacitor is connected with the frequency tracking module, and the frequency tracking module is connected with the heating component.
4. The frequency-stabilized high-frequency electromagnetic induction warmer of claim 3, wherein:
the frequency tracking assembly comprises a filter, a voltage stabilizing circuit and a pulse width modulation circuit.
5. The frequency-stabilized high-frequency electromagnetic induction warmer of claim 4, wherein:
the control module and the frequency tracking module are arranged in an integrated mode.
6. The frequency-stabilized high-frequency electromagnetic induction warmer of claim 1, further comprising:
a room temperature detection assembly including a second temperature sensor, the room temperature detection assembly being electrically connected to the relay.
7. The frequency-stabilized high-frequency electromagnetic induction warmer of claim 1, wherein:
the structure of the radiator is one of plate type, column type, fin type, plug-in welding type, composite type and vacuum superconducting type.
8. The frequency-stabilized high-frequency electromagnetic induction warmer of claim 7, wherein:
the radiator is made of one of cast iron, steel, aluminum and copper.
9. The frequency-stabilized high-frequency electromagnetic induction warmer of claim 1, wherein:
the heating component is an electromagnetic induction coil.
10. The frequency-stabilized high-frequency electromagnetic induction warmer of claim 1, wherein:
the power supply module is a variable-frequency inverter power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121539322.5U CN215951552U (en) | 2021-07-07 | 2021-07-07 | High-frequency electromagnetic induction heater with stable frequency |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121539322.5U CN215951552U (en) | 2021-07-07 | 2021-07-07 | High-frequency electromagnetic induction heater with stable frequency |
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| CN215951552U true CN215951552U (en) | 2022-03-04 |
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| CN202121539322.5U Active CN215951552U (en) | 2021-07-07 | 2021-07-07 | High-frequency electromagnetic induction heater with stable frequency |
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