Boost protection circuit and electric gas stove
By designing a boost protection circuit for electric stoves, the series structure of the parallel transformer and the rectifier module is used to solve the problem that the electric stove cannot protect the internal circuit when encountering water or short-circuited, and the safety and reliability of the circuit are achieved.
Patent Information
- Application Number
- CN202421231898.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-05-31
AI Technical Summary
Existing electric stoves cannot effectively protect the internal circuit when they encounter water or are short-circuited, resulting in circuit damage or other safety hazards.
A boost protection circuit is designed, and the rectifying and boosting current is rectified through the parallel transformers TC1 and TC2. The series structure of the boost module and the rectifying module is used to ensure that the circuit is disconnected in the short circuit situation and short-circuit protection is achieved.
Effectively prevent circuit damage of electric stoves when encountering water or short-circuit, ensure the safety and reliability of electric stoves, and extend the service life.
Smart Images
Figure CN222852002U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of boost circuits of electric stoves, in particular to a boost protection circuit and an electric stove. Background Art
[0002] An electric stove is a new type of stove that uses electricity to generate a high-temperature plasma flame, similar to an "open flame". Since the high-temperature plasma flame needs to be generated by breaking through the air, the electric stove needs to increase the voltage to a relatively high level (usually more than 10,000 volts) to break through the air to generate a plasma flame to work properly. Conventional electric stoves only use the negative electrode to ground as protection, which is still not enough to protect the internal circuit of the electric stove when it encounters water (for example, when the user overturns the pot or the pot is damaged, causing water to enter the electric stove) and a short circuit occurs. Utility Model Content
[0003] In view of this, the utility model provides a boost protection circuit and an electric stove, which are used to solve the problem in the prior art that the electric stove can not protect the internal circuit due to short circuit when it encounters water or the like.
[0004] To achieve one or part or all of the above purposes or other purposes, the utility model provides a boost protection circuit for an electric stove, comprising: an input terminal P1, an input terminal P3, a transformer TC1, a transformer TC2, an inductor TR1, an inductor TR2, a first rectifier module, a second rectifier module, a first boost module and a second boost module, a first electrode P2 and a second electrode P4;
[0005] The input terminal P3 is connected to the 4th pin of the transformer TC1 and the 4th pin of the transformer TC2, the input terminal P1 is connected to the 3rd pin of the transformer TC2 and the 3rd pin of the inductor TR1, the 4th pin of the inductor TR1 is connected to the 3rd pin of the transformer TC1, the 1st pin of the transformer TC1 is connected to the 2nd pin of the inductor TR1, the 2nd pin of the transformer TC1 is connected to the 1st pin of the transformer TC2, the 2nd pin of the transformer TC2 is connected to the input end of the first rectifier module and the input end of the second rectifier module, the output end of the first rectifier module is connected to the second electrode P4 and the input end of the first boost module, the output end of the first boost module is connected to the 1st pin of the inductor TR2 and the input end of the second boost module, and the output end of the second boost module is connected to the first electrode P2 and the output end of the second rectifier module;
[0006] The input terminal P1 is used to connect one end of the AC input, and the input terminal P3 is used to connect the other end of the AC input.
[0007] Furthermore, the boost protection circuit also includes: a protection module, one end of the protection module is connected to the first pin of the inductor TR2, the output end of the first boost module and the input end of the second boost module, and the other end of the protection module is connected to the second pin of the transformer TC2, the input end of the first rectifier module and the input end of the second rectifier module.
[0008] Furthermore, the first rectifier module and the second rectifier module are both a plurality of capacitors of the same specification connected in series.
[0009] Furthermore, the number of capacitors in the second rectifier module is 1 to 10, and the capacitance value of each capacitor is 100PF to 10UF.
[0010] Furthermore, the first boost module and the second boost module are both a plurality of boost diodes of the same specification connected in series.
[0011] Furthermore, the first boost module and the second boost module each include 15 boost diodes of the same specification connected in series.
[0012] Furthermore, the protection module is a resistor R37 and a capacitor C32 connected in parallel.
[0013] Furthermore, the resistance value of the resistor R37 is 100KΩ to 10MΩ, and the capacitance value of the capacitor C32 is 10PF to 1NF.
[0014] In order to achieve one, part or all of the above purposes or other purposes, the utility model further provides an electric stove, characterized in that the electric stove comprises any one of the above-mentioned boost protection circuits.
[0015] Implementing the embodiments of the present utility model will have the following beneficial effects:
[0016] After adopting the above-mentioned boost circuit, since transformer TC1 and transformer TC2 are connected in parallel, the input power is rectified by inductor TR1, boosted by transformer, and then rectified by inductor TR2 to ensure the stability of input. After rectification, the half-cycle current is rectified again by the first rectifier module, and then boosted by the first boost module and the other half-cycle current is boosted by the second boost module. The first electrode P2 discharges to the second electrode P4, and high-temperature plasma is generated between the first electrode P2 and the second electrode P4, that is, "open flame" is generated. If the first electrode P2 and the second electrode P4 are short-circuited by water, since the boosted current is DC after the boost module, the second rectifier module cannot pass DC, and the entire circuit is disconnected to achieve short-circuit protection. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] in:
[0019] Figure 1 The figure is a schematic diagram of the circuit structure of a boost protection circuit in one embodiment of the utility model. DETAILED DESCRIPTION
[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.
[0021] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0022] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.
[0023] Reference Figure 1The utility model proposes a boost protection circuit for an electric stove, comprising: an input terminal P1, an input terminal P3, a transformer TC1, a transformer TC2, an inductor TR1, an inductor TR2, a first rectifier module, a second rectifier module, a first boost module and a second boost module, a first electrode P2 and a second electrode P4; wherein the first rectifier module and the second rectifier module are both multiple capacitors of the same specification connected in series. For example, the number of capacitors in the second rectifier module is 1 to 10, and the capacitance is 100PF to 10UF. wherein the first boost module and the second boost module are both multiple boost diodes of the same specification connected in series. For example, the first boost module and the second boost module are both 15 boost diodes of the same specification connected in series.
[0024] The input terminal P3 is connected to the 4th pin of the transformer TC1 and the 4th pin of the transformer TC2, the input terminal P1 is connected to the 3rd pin of the transformer TC2 and the 3rd pin of the inductor TR1, the 4th pin of the inductor TR1 is connected to the 3rd pin of the transformer TC1, the 1st pin of the transformer TC1 is connected to the 2nd pin of the inductor TR1, the 2nd pin of the transformer TC1 is connected to the 1st pin of the transformer TC2, the 2nd pin of the transformer TC2 is connected to the input end of the first rectifier module and the input end of the second rectifier module, the output end of the first rectifier module is connected to the second electrode P4 and the input end of the first boost module, the output end of the first boost module is connected to the 1st pin of the inductor TR2 and the input end of the second boost module, and the output end of the second boost module is connected to the first electrode P2 and the output end of the second rectifier module;
[0025] The input terminal P1 is used to connect one end of the AC input, and the input terminal P3 is used to connect the other end of the AC input.
[0026] Among them, the boost protection circuit also includes: a protection module, one end of the protection module is connected to the first foot of the inductor TR2, the output end of the first boost module and the input end of the second boost module, and the other end of the protection module is connected to the second foot of the transformer TC2, the input end of the first rectifier module and the input end of the second rectifier module.
[0027] The protection module is a resistor R37 and a capacitor C32 connected in parallel. Specifically, the resistance of the resistor R37 can be 100KΩ to 10MΩ, and the capacitance of the capacitor C32 can be 10PF to 1NF.
[0028] During operation, since transformer TC1 and transformer TC2 are connected in parallel, the input power is rectified by inductor TR1, boosted by transformer, and rectified by inductor TR2 to ensure input stability. After rectification, the current of half a cycle is rectified again by the first rectifier module, and then boosted by the first booster module and the current of the other half cycle is boosted by the second booster module. The first electrode P2 discharges to the second electrode P4, and high-temperature plasma is generated between the first electrode P2 and the second electrode P4, that is, "open flame" is generated. If the first electrode P2 and the second electrode P4 are short-circuited by water, since the boosted voltage is DC after the booster module, the second rectifier module cannot pass DC, and the entire circuit is disconnected to achieve short-circuit protection.
[0029] In addition, the utility model also provides an electric combustion stove, which comprises any one of the boost circuits described above.
[0030] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.
Claims
1. A boost protection circuit for an electric stove, characterized in that: include: Input terminal P1, input terminal P3, transformer TC1, transformer TC2, inductor TR1, inductor TR2, a first rectifier module, a second rectifier module, a first boost module and a second boost module, a first electrode P2 and a second electrode P4; The input terminal P3 is connected to the 4th pin of the transformer TC1 and the 4th pin of the transformer TC2, the input terminal P1 is connected to the 3rd pin of the transformer TC2 and the 3rd pin of the inductor TR1, the 4th pin of the inductor TR1 is connected to the 3rd pin of the transformer TC1, the 1st pin of the transformer TC1 is connected to the 2nd pin of the inductor TR1, the 2nd pin of the transformer TC1 is connected to the 1st pin of the transformer TC2, the 2nd pin of the transformer TC2 is connected to the input end of the first rectifier module and the input end of the second rectifier module, the output end of the first rectifier module is connected to the second electrode P4 and the input end of the first boost module, the output end of the first boost module is connected to the 1st pin of the inductor TR2 and the input end of the second boost module, and the output end of the second boost module is connected to the first electrode P2 and the output end of the second rectifier module; The input terminal P1 is used to connect one end of the AC input, and the input terminal P3 is used to connect the other end of the AC input.
2. The boost protection circuit according to claim 1, characterized in that: The boost protection circuit also includes: a protection module, one end of the protection module is connected to the first foot of the inductor TR2, the output end of the first boost module and the input end of the second boost module, and the other end of the protection module is connected to the second foot of the transformer TC2, the input end of the first rectifier module and the input end of the second rectifier module.
3. The boost protection circuit according to claim 1 or 2, characterized in that: The first rectifier module and the second rectifier module are both composed of a plurality of capacitors with the same specifications and connected in series.
4. The boost protection circuit according to claim 3, characterized in that: The number of capacitors in the second rectifier module is 1 to 10, and the capacitance value of each capacitor is 100PF to 10UF.
5. The boost protection circuit according to claim 1 or 2, characterized in that: The first boost module and the second boost module are both multiple boost diodes with the same specifications and connected in series.
6. The boost protection circuit according to claim 5, characterized in that: The first boost module and the second boost module each include 15 boost diodes of the same specification connected in series.
7. The boost protection circuit according to claim 2, characterized in that: The protection module is a resistor R37 and a capacitor C32 connected in parallel.
8. The boost protection circuit according to claim 7, characterized in that: The resistance value of the resistor R37 is 100KΩ~10MΩ, and the capacitance value of the capacitor C32 is 10PF~1NF.
9. An electric stove, characterized in that: The electric stove comprises the boost protection circuit according to any one of claims 1 to 8.