WO2021017879A1 - 电焰灶 - Google Patents

电焰灶 Download PDF

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Publication number
WO2021017879A1
WO2021017879A1 PCT/CN2020/102454 CN2020102454W WO2021017879A1 WO 2021017879 A1 WO2021017879 A1 WO 2021017879A1 CN 2020102454 W CN2020102454 W CN 2020102454W WO 2021017879 A1 WO2021017879 A1 WO 2021017879A1
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WO
WIPO (PCT)
Prior art keywords
base
electric flame
transformer
circuit board
cabinet
Prior art date
Application number
PCT/CN2020/102454
Other languages
English (en)
French (fr)
Inventor
卢驭龙
Original Assignee
卢驭龙
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 卢驭龙 filed Critical 卢驭龙
Publication of WO2021017879A1 publication Critical patent/WO2021017879A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/06—Arrangement or mounting of electric heating elements
    • F24C7/067—Arrangement or mounting of electric heating elements on ranges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/006—Arrangements for circulation of cooling air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/14—Spillage trays or grooves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/06—Arrangement or mounting of electric heating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination

Definitions

  • This application relates to the field of electric heating, in particular to an electric flame stove.
  • the principle of the electric flame stove is to generate an electric flame by high voltage to work. Specifically, a transformer is used to provide high voltage to the ion needle to generate an electric flame at the ion needle of the stove head. High voltage has a certain safety hazard to the human body. Therefore, if you want to popularize the use of electric flame stoves, it is necessary to improve the safety of electric flame stoves.
  • One of the objectives of the embodiments of the present application is to provide an electric flame stove, which aims to solve the problem of improving the safety of the electric flame stove.
  • an electric flame stove which includes a cabinet, a main control circuit board assembly arranged in the cabinet, a transformer electrically connected to the main control circuit board assembly, and a stove installed on the cabinet Head assembly;
  • the furnace head assembly includes a base installed on the chassis, an ion needle installed on the base and electrically connected to the transformer, an isolation cover connected to the base and surrounding the ion needle, And a support ring installed on the top of the isolation cover and used for contacting the pot;
  • the isolation cover is an insulating cover, and the base is an insulating seat.
  • the beneficial effects of the electric flame stove are: the pot to be heated is placed at the support ring of the furnace head assembly, the isolation cover is selected as the insulating cover, and the base is selected as the insulating seat. Therefore, the ion needle and the isolation cover and the base It is not easy to generate high-voltage arc, and will not guide the high voltage at the ion needle to the base and isolation cover, that is, it will not guide the high voltage at the ion needle to the edge, thereby effectively avoiding the The high voltage is guided to the outside of the furnace head assembly, which realizes the isolation of the high voltage in the furnace head assembly, and the furnace head assembly is the exposed component of the electric flame cooker, and the high voltage isolation effectively improves the safety of the electric flame cooker. .
  • Figure 1 is a top view of the electric flame cooker in the embodiment of the application.
  • Figure 2 is an exploded view of the electric flame stove in Figure 1;
  • Figure 3 is a sectional view taken along line A-A in Figure 1;
  • Figure 4 is a sectional view taken along line B-B in Figure 1;
  • Figure 5 is a top view of the furnace head assembly in Figure 1;
  • Figure 6 is a cross-sectional view taken along line F-F in Figure 5;
  • Figure 7 is a partial enlarged view of G in Figure 6;
  • Figure 8 is a cross-sectional view taken along line C-C in Figure 1;
  • FIG. 10 is a cross-sectional view of the burner head assembly when a pot is placed in the embodiment of the application.
  • Fig. 11 is a partial enlarged view at H in Fig. 10;
  • Figure 12 is a partial enlarged view at J in Figure 10;
  • FIG. 13 is a partial cross-sectional view of the electric flame stove having a drainage hole in an embodiment of the application;
  • Figure 15 is a sectional view taken along line D-D in Figure 1;
  • Figure 16 is a cross-sectional view taken along line E-E in Figure 1;
  • Figure 17 is a rear view of the electric flame stove in Figure 1;
  • Figure 18 is a front view of the electric flame stove in Figure 1;
  • Figure 19 is a top view of the furnace head assembly in Figure 1 in an embodiment of the application (when the second heat dissipation fan is shown);
  • Figure 20 is a sectional view taken along line K-K in Figure 19;
  • Figure 21 is a cross-sectional view of the furnace head assembly where the induction component is provided in the embodiment of the application;
  • Figure 22 is a partial enlarged view at L in Figure 21;
  • FIG. 23 is a schematic diagram of the structure of an ion needle in an embodiment of the application.
  • Figure 24 is a cross-sectional view of the ion needle in Figure 23;
  • an embodiment of the present application proposes an electric flame stove, which includes a chassis 1, a main control circuit board assembly 2 provided in the chassis 1, a transformer 3 electrically connected to the main control circuit board assembly 2 , And the furnace head assembly 4 installed on the chassis 1;
  • the furnace head assembly 4 includes a base 41 installed on the chassis 1, an ion needle 42 installed on the base 41 and electrically connected to the transformer 3, connected to the base 41 and surrounding the ion needle
  • the isolation cover 43 is set at 42 and the support ring 44 installed on the top of the isolation cover 43 and used to contact the pot 9; the isolation cover 43 is an insulating cover, and the base 41 is an insulating seat.
  • the main control circuit board assembly 2 controls the transformer 3 to generate different voltages, so as to realize the generation of electric flames of different strengths at the ion needle 42 to the pot 9 Heat up.
  • the pot 9 to be heated is placed at the support ring 44 of the furnace head assembly 4.
  • the isolation cover 43 is selected as the insulating cover, and the base 41 is selected as the insulating seat. Therefore, it is not easy to produce between the ion needle 42 and the isolation cover 43 and the base 41.
  • the high-voltage arc will not guide the high voltage at the ion needle 42 to the base 41 and the isolation cover 43, that is, it will not guide the high voltage at the ion needle 42 to the edge, thereby effectively avoiding the high voltage at the ion needle 42 Guided to the outside of the furnace head assembly 4, the high voltage in the furnace head assembly 4 is isolated, and the furnace head assembly 4 is the exposed component of the electric flame stove.
  • the high-voltage isolation on it effectively improves the use of the electric flame stove. safety.
  • the isolation cover 43 can be installed on the base 41 in an embedded manner, thereby increasing the spread of the high voltage in the furnace head to the outside through the creepage mode, that is, increasing the creepage distance and further affecting the furnace head. High voltage is isolated.
  • the isolation cover 43 and the base 41 can also be provided as an integral structure.
  • the isolation cover 43 may be a transparent glass cover to facilitate observation of the state of the electric flame generated by the ion needle 42.
  • the cabinet 1 is an insulating box, and an insulating partition 121 is provided between the transformer 3 and the main control circuit board assembly 2.
  • the case 1 as an insulating case can avoid the high-voltage arc between the high-voltage area formed by the transformer 3 and the inner wall of the case 1, and it can also avoid the high-voltage arc between the high-voltage area of the furnace head assembly 4 and the case 1. .
  • an insulating partition 121 is provided between the transformer 3 and the main control circuit board assembly 2, so the high voltage area formed by the high voltage generated by the transformer 3 and the main control circuit board assembly 2 will not generate high voltage arcing, thereby effectively avoiding The phenomenon of high-voltage arc drawn in the cabinet 1 of the electric flame stove is improved, and the safety of the electric flame stove is improved.
  • the case 1 includes a case bottom shell 11 and a case surface shell 12 detachably connected to the case bottom shell 11; and a main control circuit board assembly 2
  • the main control circuit board assembly 2 and the transformer 3 can be fixedly connected to the main control circuit board assembly after the main control circuit board assembly 2 and the transformer 3 are fixedly connected to the main control circuit board assembly during the assembly process of the electric flame stove.
  • the transformer 3 and the box surface shell 12 are integrally connected with the box bottom shell 11 to complete the assembly of the electric flame stove. Compared with the installation operation in the box bottom shell 11, it can effectively reduce the difficulty of installation and improve the processing efficiency.
  • the insulating partition 121 is formed by extending the box face shell 12 in a direction away from the bottom of the box bottom shell 11; that is, the insulating partition 121 and the box face shell 12 are an integral piece, and there is no gap formed by connection between it and the box face shell 12. It is further ensured that no high voltage arc is generated between the high voltage area formed by the high voltage generated by the transformer 3 and the main control circuit board assembly 2. A gap is formed between the main control circuit board assembly 2 and the transformer 3 and the bottom of the box bottom shell 11; that is, the main control circuit board assembly 2 and the transformer 3 are both in a "floating" state. When the outside of the electric flame cooker accidentally splashes water on the cabinet 1. When inside, the main control circuit board assembly 2 and the transformer 3 will not be in contact with water, which ensures the safety of the electric flame stove during use.
  • the cabinet 1 is provided with a first air inlet 13, a first air outlet 14, and a second air outlet 15; 1 is provided with a first heat dissipation fan 16, which is located at the first air inlet 13, and the first air inlet 13 and the first air outlet 14 are respectively located on opposite sides of the chassis 1, and the chassis 1 includes a bottom shell 11 And the box surface shell 12 detachably connected with the box bottom shell 11; the first air outlet 14 is located in the box bottom shell 11, and the second air outlet 15 is located in the box surface shell 12.
  • the first air inlet 13 and the first air outlet 14 are respectively located on opposite sides of the chassis 1, so a direct air duct is formed between the first air inlet 13 and the first air outlet 14, which can effectively remove the high temperature air in the chassis 1 Exhaust to the outside and supplement room temperature air in the case 1, effectively realize the heat dissipation inside the case 1, avoid the internal temperature of the case 1 from being too high, and ensure the safety of use.
  • the first air outlet 14 is located at the bottom shell 11 of the box, and the second air outlet 15 is located on the box surface shell 12. Therefore, the second air outlet 15 is located on the top of the first air outlet 14, and the high-temperature air has a tendency to move upwards.
  • the high-temperature air in the top area is discharged outward through the second air outlet 15 on the face shell, which prevents the high-temperature air from scurrying inside the case 1 and cannot be discharged outside in time, that is, the heat in the case 1 can be discharged outside in time.
  • the cabinet 1 is provided with a second air inlet 17, and the cabinet 1 is provided with a shunt 5 and corresponding to the second air inlet 17
  • the chassis 1 is provided with a mounting hole 122, and the base 41 is installed at the mounting hole 122 and extends into the chassis 1; the transformer 3 is located below the base 41; the second heat dissipation fan 18 is arranged opposite to the base 41.
  • the transformer 3 and the base 41 are areas with severe heat generation. Therefore, the second heat dissipation fan 18 dissipates heat from the entire interior of the chassis 1 while directly corresponding to the transformer 3 and the base 41 to prevent the local temperature of the transformer 3 and the base 41 from being too high.
  • a third heat dissipation fan 151 is provided at the second air outlet 15 to facilitate the flow of high-temperature air from the second air outlet 15.
  • the base 41 is provided with a receiving groove 411, and the stove head assembly 4 further includes a notch connected to and closed with the receiving groove 411
  • the shunt cover 5 has a shunt inlet 51, a first shunt outlet 52, a second shunt outlet 53, and a third shunt outlet 54;
  • the second heat dissipation fan 18 is installed at the shunt inlet 51;
  • the first shunt outlet 52 communicates with the shunt inlet 51 and It communicates with the third air inlet 412;
  • the second separation outlet communicates with the shunt inlet 51 and communicates with the gap between the base 41 and the
  • the main control circuit board assembly 2 includes a metal shield 21 and a printed circuit board 22 installed in the metal shield 21;
  • the metal shield 21 is provided with an air guide hole 23 penetrating the metal shield 21, and the printed circuit board 22 is located in the air guide hole 23;
  • the first heat dissipation fan 16 is fixedly connected to the inner wall of the air guide hole 23;
  • It includes a waterproof cover 19 provided at the second air outlet 15.
  • the waterproof cover 19 includes an inclined plate 191 and a vertical plate 192 connected to the inclined plate 191.
  • the vertical plate 192 is provided with an air outlet 1921.
  • the air guide hole 23 of the metal shield 21 is used as an independent heat dissipation air duct for the air flow generated by the first heat dissipation fan 16 to pass through, which can directly and better heat the main control circuit board assembly 2, and also simultaneously The high-temperature air inside the case 1 is discharged to the outside.
  • the box surface shell 12 is located on the top of the electric flame cooker, and it is easily affected by water.
  • the second air outlet 15 is provided with a waterproof cover 19 to prevent water from flowing into the cabinet 1 through the second air outlet 15; Opening the air outlet 1921 on the vertical plate 192 of the waterproof cover 19 can also guide the high-temperature air to the side of the case 1, avoiding direct discharge from the top surface of the case 1 and affecting the user experience.
  • the printed circuit board 22 is located in the air conducting hole 23 of the metal shielding cover 21 (may be an aluminum cover), so the printed circuit board 22 has the shielding effect of the metal shell around the printed circuit board 22, and the high voltage generated by the transformer 3 of the electric flame stove is due to The shielding of the metal casing cannot affect the circuits and components on the printed circuit board 22 in the metal casing, thereby ensuring the normal operation of the main control circuit board assembly 2.
  • a first sealing ring 441 is installed on the support ring 44; a first sealing ring 441 is installed between the isolation cover 43 and the base 41 Two sealing rings 431; a third sealing ring 432 is provided between the isolation cover 43 and the support ring 44; the base 41 is provided with a containing groove 411, and the furnace head assembly 4 also includes a slot connected with the containing groove 411 and sealed and contained
  • the isolation plate 45 of the groove 411; the isolation plate 45 is provided with a relief hole, and the ion needle 42 penetrates the relief hole and is connected with the bottom of the containing groove 411; a fourth sealing ring 414 is provided between the isolation plate 45 and the base 41,
  • a fifth sealing ring 451 is provided between the ion needle 42 and the inner wall of the relief hole.
  • a first sealing ring 441 contacting the pot 9 is installed on the support ring 44, the isolation cover 43 and the base 41 are hermetically connected by a second sealing ring 431, and the isolation cover 43 and the support ring 44 are sealed by a third sealing ring 432.
  • the isolation plate 45 and the base 41 are sealed and connected by a fourth sealing ring 414, the top of the ion needle 42 is located on the side of the isolation plate 45 away from the bottom of the containing groove 411, and the ion needle 42 and the inner wall of the relief hole It is sealed and connected by the fifth sealing ring 451, so that when the pot 9 is placed on the first sealing ring 441 on the support ring 44, the pot 9, the support ring 44, the isolation cover 43, the base 41 and the isolation plate 45 form a closed
  • the position where the ion needle 42 generates the electric flame (the top of the ion needle 42) is located in the electric flame generation space, so when the ion needle 42 generates the electric flame, no outside air enters the electric flame generation space
  • the inner ion needle 42 is connected to high-voltage electricity to generate an electric flame, the original air in the enclosed cavity is electrically shocked to generate trace ozone and nitrogen oxides, the outside air cannot enter the enclosed cavity, so ozone and nitrogen oxides will not
  • the first sealing ring 441... the fifth sealing ring 451 may be a silicone ring, or a sealing ring formed by curing silicone.
  • a sixth sealing ring 6 is provided between the base 41 and the cabinet 1; the base 41 is provided with a surrounding accommodating groove The surface of the water channel 415 of the 411, the surface of the isolation plate 45 is flush with or higher than the slot of the water channel 415, the bottom of the water channel 415 is provided with a drainage hole 416, and the base 41 is provided for sealing drainage
  • the one-way valve 7 through which water is passed through the hole 416 (the case 1 is provided with a water outlet hole 111, and the one-way valve 7 communicates with the water outlet hole 111).
  • the electric flame stove is used in the kitchen and is used for cooking, so it is inevitable to encounter the situation of splashing water, and in the case of electric heating, the accumulation of water poses a great safety hazard.
  • the water enters the electric flame generation space (water can enter when the pot 9 is not placed), and the water flows into the water groove 415 and is discharged from the drain hole 416 of the base 41 to avoid the stove head assembly 4 Accumulated water will affect the normal operation of the electric flame stove.
  • the ion needle 42 includes a support rod 421, an ion head 422 detachably mounted on the support rod 421, and
  • the support rod 421 has an external thread 4211 at one end away from the ion head 422; the ion head 422 is provided with a mounting groove 4221, and the support rod 421 is provided with a mounting protrusion 4212 inserted into the mounting groove 4221. Mount the ion head 422 on the support rod 421 in a detachable manner.
  • the ion head 422 is conical; the top of the ion head 422 has a hemispherical block 4222; the hemispherical block 4222 may be
  • the curved surface processed by the cone-shaped ion head 422 can avoid the low service life of the ion head 422 due to the excessively sharp top.
  • the bottom of the ion head 422 has an arc chamfer 4223; several tests have found that the arc chamfer 4223 can effectively increase the service life of the ion head 422.
  • the arc-shaped chamfer 4223 at the bottom of the ion head 422 can avoid high-voltage arcing between the ion heads 422 on adjacent ion needles 42 (the voltage exceeds the endurance of air).
  • To ionize the air into a conductor is to generate an arc.
  • the arc generally bypasses the insulator and is generated along the surface of the insulator, which will damage the insulator. For example, the high temperature of the arc will melt or crack the insulator.
  • the switch indicates a rated short circuit.
  • the breaking current of 20KA means that the action of the short-circuit tripping contact arc extinguishing thermal element within 20KA is effective, and the action of the arc extinguishing thermal element of the trip joint beyond this limit is not guaranteed, and arcing will occur).
  • the mounting groove 4221 is a circular groove.
  • the support rod 421 is provided with a first stop ring 4213.
  • the outer diameter of the first stop ring 4213 is larger than the inner diameter of the mounting groove 4221; the first stop ring 4213 can avoid the first mounting protrusion
  • the top of the 4212 directly contacts the bottom of the first mounting groove 4221, thereby avoiding high temperature sintering and connecting the first mounting protrusion 4212 and the bottom of the first mounting groove 4221, and avoiding the subsequent failure to quickly remove the ion head 422 from the support rod Disassembled on 421.
  • the support rod 421 is provided with a plurality of heat dissipation rings 4214, a gap is formed between adjacent heat dissipation rings 4214, and a gap is formed between adjacent heat dissipation rings 4214 to increase the heat dissipation area of the ion needle 42 and ensure the heat dissipation effect of the ion head 422 , In order to improve the service life of the ion needle 42.
  • heat dissipation structures can also be provided on the ion needle 42 to increase the service life of the ion needle 42.
  • the support rod 421 is threadedly connected to the base 41 through an external thread 4211, and the support rod 421 is provided with a second limit stop.
  • the ring 4215 and the second limit ring 4215 are located on the side of the external thread 4211 close to the ion head 422 to prevent the support rod 421 from being inserted into the base 41 too deeply.
  • a detection support stand 47 is provided on the base 41, and the detection support stand 47 is provided with a detection slot 471, and a detection slot 471
  • the sensor assembly 8 is provided inside; the sensor assembly 8 includes an induction switch arranged in the detection groove 471, a sliding member 81 for contacting with the pot 9 and for triggering the induction switch, and between the sliding member 81 and the detection support 47 Between the compression spring 82; the sliding member 81 is slidably installed on the detection support 47.
  • the pot 9 When the pot 9 is placed on the furnace head, the pot 9 contacts the sliding member 81 and applies force to the sliding member 81 so that the sliding member 81 slides relative to the detection support table 47 and compresses the compression spring 82.
  • the sliding member 81 slides for a certain distance and then triggers the induction switch.
  • the transformer 3 of the electric flame stove supplies high voltage to the ion needle 42 and generates an electric flame at the ion head 422.
  • the compression spring 82 resets to push the sliding member 81 open, and the trigger state of the sliding member 81 to the induction switch is released.
  • the transformer 3 of the electric flame cooker stops supplying high voltage to the ion needle 42.
  • the work of the ion needle 42 can be stopped as long as the pot 9 leaves the furnace head, and the potential safety hazard of the high voltage at the ion head 422 of the ion needle 42 is avoided.
  • the induction assembly 8 further includes a fixed cylinder 83 fixedly installed in the detection groove 471, and inserted into the fixed cylinder 83
  • the guide cylinder 84 and the fixed cylinder 83 are threadedly connected, which makes the assembly of the sensing assembly 8 more convenient.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Electric Stoves And Ranges (AREA)

Abstract

一种电焰灶，包括机箱（1）、设于机箱（1）内的主控电路板组件（2）、与主控电路板组件（2）电连接的变压器（3），以及安装于机箱（1）上的炉头组件（4）；炉头组件（4）包括安装于机箱（1）上的底座（41）、安装于底座（41）且与变压器（3）电连接的离子针（42）、与底座（41）相连且环绕离子针（42）设置的隔离罩（43），以及安装于隔离罩（43）的顶部且用于与锅（9）接触的支撑环（44）；隔离罩（43）为绝缘罩，底座（41）为绝缘座，该电焰灶实现了对炉头组件（4）内的高电压的隔离，提升了电焰灶使用的安全性。

Description

电焰灶
本申请要求于2019年07月26日在中国专利局提交的、申请号为201910683177.9、发明名称为“电焰灶”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电加热领域，尤其涉及一种电焰灶。
 背景技术
电焰灶原理是由高压产生电焰进行工作，具体为通过变压器为离子针提供高压进而在炉头的离子针处产生电焰。高压对于人体来说具有一定的安全隐患，因此若想普及电焰灶的使用，需要提升电焰灶使用时的安全性。
 技术问题
本申请实施例的目的之一在于：提供一种电焰灶，旨在解决，需要提升电焰灶使用的安全性的问题。
 技术解决方案
为解决上述技术问题，本申请实施例采用的技术方案是：
第一方面，提供了一种电焰灶，包括机箱、设于所述机箱内的主控电路板组件、与所述主控电路板组件电连接的变压器，以及安装于所述机箱上的炉头组件；所述炉头组件包括安装于所述机箱上的底座、安装于所述底座且与所述变压器电连接的离子针、与所述底座相连且环绕所述离子针设置的隔离罩，以及安装于所述隔离罩的顶部且用于与锅接触的支撑环；所述隔离罩为绝缘罩，所述底座为绝缘座。
 有益效果
本申请实施例提供的电焰灶的有益效果在于：待加热的锅放置于炉头组件的支撑环处，将隔离罩选为绝缘罩，底座选为绝缘座，因此离子针与隔离罩及底座之间均不易于产生高压拉弧，不会将离子针处的高压引导至底座及隔离罩处，也即不会将离子针处的高压引导至边缘处，进而有效避免了将离子针处的高压引导至炉头组件的外部，实现了对炉头组件内的高电压的隔离，而炉头组件为电焰灶外露的组件，对其进行了高压隔离有效提升了电焰灶使用的安全性。
 附图说明
图1为本申请的实施例中电焰灶的俯视图；
图2为图1中的电焰灶的爆炸图；
图3为沿图1中A-A线的剖视图；
图4为沿图1中B-B线的剖视图；
图5为图1中的炉头组件的俯视图；
图6为沿图5中F-F线的剖视图；
图7为图6中G处的局部放大图；
图8为沿图1中C-C线的剖视图；
图9为本申请的实施例中主控电路板组件的剖视图；
图10为本申请的实施例中炉头组件放置有锅时的剖视图；
图11为图10中H处的局部放大图；
图12为图10中J处的局部放大图；
图13为本申请的实施例中电焰灶具有排水孔处的局部剖视图；
图14为本申请的实施例中底座的结构示意图；
图15为沿图1中D-D线的剖视图；
图16为沿图1中E-E线的剖视图；
图17为图1中的电焰灶的后视图；
图18为图1中的电焰灶的前视图；
图19为本申请的实施例中图1中的炉头组件的俯视图（示出第二散热风机时）；
图20为沿图19中K-K线的剖视图；
图21为本申请的实施例中炉头组件设有感应组件处的剖视图；
图22为图21中L处的局部放大图；
图23为本申请的实施例中离子针的结构示意图；
图24为图23中的离子针的剖视图；
 本发明的实施方式
如图1-图4所示，本申请实施例提出了一种电焰灶，包括机箱1、设于机箱1内的主控电路板组件2、与主控电路板组件2电连接的变压器3，以及安装于机箱1上的炉头组件4；炉头组件4包括安装于机箱1上的底座41、安装于底座41且与变压器3电连接的离子针42、与底座41相连且环绕离子针42设置的隔离罩43，以及安装于隔离罩43的顶部且用于与锅9接触的支撑环44；隔离罩43为绝缘罩，底座41为绝缘座。
在本申请的实施例中，请参阅图5-图24，工作过程中，主控电路板组件2控制变压器3产生不同的电压，进而实现在离子针42处产生不同强度的电焰对锅9进行加热。待加热的锅9放置于炉头组件4的支撑环44处，将隔离罩43选为绝缘罩，底座41选为绝缘座，因此离子针42与隔离罩43及底座41之间均不易于产生高压拉弧，不会将离子针42处的高压引导至底座41及隔离罩43处，也即不会将离子针42处的高压引导至边缘处，进而有效避免了将离子针42处的高压引导至炉头组件4的外部，实现了对炉头组件4内的高电压的隔离，而炉头组件4为电焰灶外露的组件，对其进行了高压隔离有效提升了电焰灶使用的安全性。
可选的，可将隔离罩43以嵌入的方式安装于底座41上，进而增加了炉头内的高压通过爬电的方式向外传播，也即增加了爬电距离，进一步对炉头内的高压进行隔离。当然，也可将隔离罩43与底座41设置为一体式结构。隔离罩43可为透明玻璃罩，便于观察离子针42产生的电焰的状态。
进一步地，请参阅图图8，作为本申请提供的电焰灶的另一种具体实施方式，机箱1为绝缘箱体，变压器3与主控电路板组件2之间设有绝缘隔板121。将机箱1选为绝缘箱体，可避免变压器3产生的高压形成的高压区域与机箱1内壁之间产生高压拉弧，也可避免炉头组件4的高压区域与机箱1之间产生高压拉弧。同时，在变压器3与主控电路板组件2之间设置有绝缘隔板121，因此变压器3产生的高压形成的高压区域与主控电路板组件2之间不会产生高压拉弧，进而有效避免了电焰灶的机箱1内产生高压拉弧的现象，提升了电焰灶使用的安全性。
进一步地，请参阅图8，作为本申请提供的电焰灶的另一种具体实施方式，机箱1包括箱底壳11及与箱底壳11可拆卸连接的箱面壳12；主控电路板组件2及变压器3均固定安装于箱面壳12；也即在电焰灶的装配过程中，可将主控电路板组件2及变压器3先与箱面壳12固定连接后再将主控电路板组件2、变压器3及箱面壳12整体与箱底壳11相连，进而完成电焰灶的组装，相对于在箱底壳11内进行安装操作，能有效降低安装的难度，提升加工效率。绝缘隔板121由箱面壳12向远离箱底壳11的底部的方向延伸形成；也即绝缘隔板121与箱面壳12为一体件，其与箱面壳12之间没有连接形成的间隙，进一步确保变压器3产生的高压形成的高压区域与主控电路板组件2之间不会产生高压拉弧。主控电路板组件2及变压器3均与箱底壳11的底部之间形成有间隙；也即主控电路板组件2及变压器3均为“悬空”状态，当电焰灶的外部意外泼水到机箱1内部时，主控电路板组件2及变压器3不会与水接触，保证电焰灶在使用过程中的安全性。
进一步地，请参阅图17-图18，作为本申请提供的电焰灶的另一种具体实施方式，机箱1开设有第一进风口13、第一出风口14及第二出风口15；机箱1内设有第一散热风机16，第一散热风机16位于第一进风口13处，第一进风口13与第一出风口14分别位于机箱1的相对的两侧，机箱1包括箱底壳11及与箱底壳11可拆卸连接的箱面壳12；第一出风口14位于箱底壳11，第二出风口15位于箱面壳12。第一进风口13与第一出风口14分别位于机箱1的相对的两侧，因此第一进风口13与第一出风口14之间形成直接的风道，能有效将机箱1内的高温空气向外排出并对机箱1内补充室温空气，有效实现机箱1内部的散热，避免机箱1内部温度过高，保证使用的安全性。同时第一出风口14位于箱底壳11，第二出风口15位于箱面壳12，因此第二出风口15位于第一出风口14的顶部，而高温空气具有向上运动趋势，因此机箱1内靠近顶部的区域的高温空气通过面壳上的第二出风口15向外排出，避免了高温空气在机箱1内部乱窜而无法及时向外排出，也即机箱1内的热量可及时向外排出。
进一步地，请参阅图18，作为本申请提供的电焰灶的另一种具体实施方式，机箱1开设有第二进风口17，机箱1内设有分流罩5及对应于第二进风口17的第二散热风机18；机箱1上开设有安装孔122，底座41安装于安装孔122处并伸入机箱1内部；变压器3位于底座41的下方；第二散热风机18与底座41相对设置。变压器3与底座41为发热较为严重的区域，因此第二散热风机18对机箱1内部整体进行散热的同时，还直接对应于变压器3与底座41，避免变压器3与底座41的局部温度过高。第二出风口15处设有第三散热风机151，以便于使得高温空气从第二出风口15流出。
进一步地，请参阅图20，作为本申请提供的电焰灶的另一种具体实施方式，底座41开设有容置槽411，炉头组件4还包括与容置槽411的槽口相连并封闭容置槽411的隔离板45；隔离板45与容置槽411的槽底之间的间隙形成有散热腔46，底座41开设有与散热腔46相通的第三进风口412及第三出风口413；分流罩5具有分流入口51、第一分流出口52、第二分流出口53及第三分流出口54；第二散热风机18安装于分流入口51；第一分流出口52与分流入口51相通并与第三进风口412相通；第二分离出口与分流入口51相通并与底座41与变压器3之间的间隙相通；第三分流出口54与分流入口51相通并与变压器3与机箱1的底部之间的间隙相通。
进一步地，请参阅图9，作为本申请提供的电焰灶的另一种具体实施方式，主控电路板组件2包括金属屏蔽罩21及安装于金属屏蔽罩21内的印制电路板22；金属屏蔽罩21开设有贯穿金属屏蔽罩21的导风通孔23，印制电路板22位于导风通孔23内；第一散热风机16与导风通孔23的内壁固定连接；机箱1还包括设于第二出风口15的防水罩19，防水罩19包括斜板191及与斜板191相连的立板192，立板192上开设有出风孔1921。金属屏蔽罩21的导风通孔23作为独立的散热风道，以供第一散热风机16产生的气流的通过，可对主控电路板组件2进行直接的较好的散热，还能同时将机箱1内部的高温空气向外排出。电焰灶使用时，箱面壳12位于电焰灶的顶部，其上容易受水的影响，在第二出风口15处设置防水罩19可避免水通过第二出风口15流入机箱1内部；将出风孔1921开设于防水罩19的立板192上，还可将高温空气导向机箱1的侧面，避免从机箱1的顶部表面直接排出影响使用者的使用体验。印制电路板22位于金属屏蔽罩21（可为铝罩）的导风通孔23内，因此印制电路板22的四周具有金属壳体的屏蔽作用，电焰灶的变压器3产生的高压由于有金属壳体的屏蔽，无法对金属壳体内的印制电路板22上的电路及元器件产生影响，进而保证了主控电路板组件2的正常工作。
进一步地，请参阅图10-图12，作为本申请提供的电焰灶的另一种具体实施方式，支撑环44上安装有第一密封圈441；隔离罩43与底座41之间设有第二密封圈431；隔离罩43与支撑环44之间设有第三密封圈432；底座41开设有容置槽411，炉头组件4还包括与容置槽411的槽口相连并封闭容置槽411的隔离板45；隔离板45开设有让位孔，离子针42贯穿让位孔并与容置槽411的槽底相连；隔离板45与底座41之间设有第四密封圈414，离子针42与让位孔的内壁之间设有第五密封圈451。支撑环44上安装有与锅9接触的第一密封圈441，隔离罩43与底座41之间通过第二密封圈431密封连接，隔离罩43与支撑环44之间通过第三密封圈432密封连接，隔离板45与底座41之间通过第四密封圈414密封连接，离子针42的顶部位于隔离板45远离容置槽411的槽底的一侧，离子针42与让位孔的内壁之间通过第五密封圈451密封连接，进而实现了当锅9放置于支撑环44上的第一密封圈441时，锅9、支撑环44、隔离罩43、底座41及隔离板45组成一封闭的电焰生成空间，离子针42产生电焰的位置（离子针42的顶部）位于该电焰生成空间内，因此当离子针42产生电焰时，不会有外部空气进入该电焰生成空间内离子针42接高压电产生电焰时将该封闭腔体内原有的空气电击产生微量臭氧及氮氧化物后，外界的空气无法进入该封闭腔体内，因此不会持续产生臭氧及氮氧化物。有效消除了电焰灶使用时的安全隐患。且电焰生成空间内原有的空气电击产生微量臭氧及氮氧化物也不会溢出。第一密封圈441……第五密封圈451可为硅胶圈，也可为硅胶固化形成的密封圈。
进一步地，请参阅图2-图3，作为本申请提供的电焰灶的另一种具体实施方式，底座41与机箱1之间设有第六密封圈6；底座41开设有环绕容置槽411的导水槽415，隔离板45的表面与导水槽415的槽口平齐或高于导水槽415的槽口，导水槽415的槽底开设有排水孔416，底座41上设有用于封闭排水孔416且以供水通过的单向阀7（机箱1上开设有出水孔111，单向阀7与出水孔111相通）。电焰灶在厨房使用，且用于烹饪，因此难免遇到水泼的情况，而电加热的方式的情况下，积水存在很大的安全隐患。当水泼到炉头组件4上时，水进入上述电焰生成空间（未放置锅9时水能够进入），水流向导水槽415并从底座41的排水孔416向外排出，避免炉头组件4处产生积水而影响电焰灶的正常工作。排水孔416处的水流出后打开单向阀7（通过水自身的重力势能或者动能），并向外排出，而外部的空气及其他杂物无法通过单向阀7进入排水孔416，避免造成排水孔416的堵塞而使得后续排水不畅，最终避免了炉头组件4具有积水，进而提升了电焰灶使用的安全性。
进一步地，请参阅图23-图24，作为本申请提供的电焰灶的另一种具体实施方式，离子针42包括支撑杆421、可拆卸安装于支撑杆421的离子头422，以及设于支撑杆421远离离子头422的一端的外螺纹4211；离子头422开设有安装槽4221，支撑杆421设有插设于安装槽4221的安装凸起4212。将离子头422以可拆卸的方式安装于支撑杆421上，可为可拆卸的连接，也可为直接放置于支撑杆421上；当离子头422由于高温及高压的影响在使用一定的时间后，其具有一定的损耗且表面会累积氧化物，产生的电焰的效果下降时，只需要将离子针42的离子头422进行更换即可，无需对整个离子针42进行更换，降低了电焰灶的使用成本。
进一步地，请参阅图23-图24，作为本申请提供的电焰灶的另一种具体实施方式，离子头422为圆锥状；离子头422的顶部具有半球块4222；该半球块4222可为圆锥状的离子头422加工出的弧面，以避免离子头422由于顶部过尖而导致的使用寿命低的情况发生。离子头422的底部具有弧形倒角4223；多次试验发现，弧形倒角4223可有效提升离子头422的使用寿命。多个离子针42同时安装于炉头上时，离子头422的底部的弧形倒角4223可避免相邻离子针42上的离子头422之间的高压拉弧（电压超过空气的耐受力使空气电离变成导体也就是产生电弧，电弧一般会绕过绝缘体沿着绝缘体的表面产生，因而会对绝缘体产生损坏，如电弧的高温会使绝缘体融化或碎裂。辟如开关上表明额定短路开断电流20KA,表示20KA内的短路跳闸触头灭弧热元件动作等有效，超过这个绝限跳闸接头灭弧热元件动作不保证，会产生拉弧）。安装槽4221为圆形槽，支撑杆421上设有第一限位环4213，第一限位环4213的外径大于安装槽4221的内径；第一限位环4213可避免第一安装凸起4212的顶部直接与第一安装槽4221的底部接触，进而避免高温将第一安装凸起4212与第一安装槽4221的槽底烧结而连接在一起，避免后续无法快速将离子头422从支撑杆421上拆卸。支撑杆421上设有多个散热环4214，相邻散热环4214之间形成有间隙，相邻散热环4214之间形成有间隙，以提升离子针42的散热面积，保证离子头422的散热效果，以提升离子针42的使用寿命。当然，离子针42上也可设置其他散热结构以提升离子针42的使用使用寿命。
进一步地，请参阅图23-图24，作为本申请提供的电焰灶的另一种具体实施方式，支撑杆421通过外螺纹4211与底座41螺纹连接，支撑杆421上设有第二限位环4215，第二限位环4215位于外螺纹4211靠近离子头422的一侧，以避免支撑杆421插入底座41的深度过大。
进一步地，请参阅图21-图22，作为本申请提供的电焰灶的另一种具体实施方式，底座41上设有检测支撑台47，检测支撑台47开设有检测槽471，检测槽471内设有感应组件8；感应组件8包括设于检测槽471内的感应开关、用于与锅9接触且用于触发感应开关的滑动件81，以及设于滑动件81与检测支撑台47之间的压缩弹簧82；滑动件81滑动安装于检测支撑台47。当锅9放置于炉头时，锅9与滑动件81接触并对滑动件81施力使得滑动件81相对检测支撑台47滑动并压缩压缩弹簧82，滑动件81滑动一段距离后触发感应开关，电焰灶的变压器3向离子针42供应高压并在离子头422处产生电焰，当锅9拿开时压缩弹簧82复位将滑动件81顶开，解除滑动件81对感应开关的触发状态，电焰灶的变压器3停止向离子针42供应高压。进而实现在电焰灶的正常使用过程中，只要锅9离开炉头即可停止离子针42的工作，避免离子针42的离子头422处的高压存在的安全隐患。
进一步地，请参阅图21-图22，作为本申请提供的电焰灶的另一种具体实施方式，感应组件8还包括固定安装于检测槽471内的固定筒83、插设于固定筒83内且与固定筒83螺纹连接的导向筒84，以及设于固定筒83与检测支撑台47之间的第七密封圈85。导向筒84与固定筒83螺纹连接，使得感应组件8的组装较为方便。
可以理解的是，另一种具体实施方式中的方案可为在其他实施例的基础上进一步改进的可实现的实施方案。
显然，本申请的上述实施例仅仅是为了清楚说明本申请所作的举例，而并非是对本申请的实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。凡在本申请的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本申请权利要求的保护范围之内。

Claims (10)

  1. 电焰灶，其特征在于，包括机箱、设于所述机箱内的主控电路板组件、与所述主控电路板组件电连接的变压器，以及安装于所述机箱上的炉头组件；所述炉头组件包括安装于所述机箱上的底座、安装于所述底座且与所述变压器电连接的离子针、与所述底座相连且环绕所述离子针设置的隔离罩，以及安装于所述隔离罩的顶部且用于与锅接触的支撑环；所述隔离罩为绝缘罩，所述底座为绝缘座。
  2. 根据权利要求1所述的电焰灶，其特征在于，所述机箱为绝缘箱体，所述变压器与所述主控电路板组件之间设有绝缘隔板。
  3. 根据权利要求2所述的电焰灶，其特征在于，所述机箱包括箱底壳及与所述箱底壳可拆卸连接的箱面壳；所述主控电路板组件及所述变压器均固定安装于所述箱面壳；所述绝缘隔板由所述箱面壳向远离所述箱底壳的底部的方向延伸形成；所述主控电路板组件及所述变压器均与所述箱底壳的底部之间形成有间隙。
  4. 根据权利要求1所述的电焰灶，其特征在于，所述机箱开设有第一进风口、第一出风口及第二出风口；所述机箱内设有第一散热风机，所述第一散热风机位于所述第一进风口处，所述第一进风口与所述第一出风口分别位于所述机箱的相对的两侧，所述机箱包括箱底壳及与所述箱底壳可拆卸连接的箱面壳；所述第一出风口位于所述箱底壳，所述第二出风口位于所述箱面壳。
  5. 根据权利要求4所述的电焰灶，其特征在于，所述机箱开设有第二进风口，所述机箱内设有对应于所述第二进风口的第二散热风机；所述机箱上开设有安装孔，所述底座安装于所述安装孔处并伸入所述机箱内部；所述变压器位于所述底座的下方；所述第二散热风机与所述底座相对设置；所述机箱内还设有位于所述第二出风口处的第三散热风机。
  6. 根据权利要求5所述的电焰灶，其特征在于，所述底座开设有容置槽，所述炉头组件还包括与所述容置槽的槽口相连并封闭所述容置槽的隔离板；所述隔离板与所述容置槽的槽底之间的间隙形成有散热腔，所述底座开设有与所述散热腔相通的第三进风口及第三出风口；所述机箱内设有分流罩；所述分流罩具有分流入口、第一分流出口、第二分流出口及第三分流出口；所述第二散热风机安装于所述分流入口；所述第一分流出口与所述分流入口相通并与所述第三进风口相通；所述第二分离出口与所述分流入口相通并与所述底座与所述变压器之间的间隙相通；所述第三分流出口与所述分流入口相通并与所述变压器与所述机箱的底部之间的间隙相通。
  7. 根据权利要求4所述的电焰灶，其特征在于，所述主控电路板组件包括金属屏蔽罩及安装于所述金属屏蔽罩内的印制电路板；所述金属屏蔽罩开设有贯穿所述金属屏蔽罩的导风通孔，所述印制电路板位于所述导风通孔内；所述第一散热风机与所述导风通孔的内壁固定连接；所述机箱还包括设于所述第二出风口的防水罩，所述防水罩包括斜板及与所述斜板相连的立板，所述立板上开设有出风孔。
  8. 根据权利要求1-7任一项所述的电焰灶，其特征在于，所述支撑环上安装有第一密封圈；所述隔离罩与所述底座之间设有第二密封圈；所述隔离罩与所述支撑环之间设有第三密封圈；所述底座开设有容置槽，所述炉头组件还包括与所述容置槽的槽口相连并封闭所述容置槽的隔离板；所述隔离板开设有让位孔，所述离子针贯穿所述让位孔并与所述容置槽的槽底相连；所述隔离板与所述底座之间设有第四密封圈，所述离子针与所述让位孔的内壁之间设有第五密封圈。
  9. 根据权利要求8所述的电焰灶，其特征在于，所述底座与所述机箱之间设有第六密封圈；所述底座开设有环绕所述容置槽的导水槽，所述隔离板的表面与所述导水槽的槽口平齐或高于所述导水槽的槽口，所述导水槽的槽底开设有排水孔，所述底座上设有用于封闭所述排水孔且以供水通过的单向阀。
  10. 根据权利要求1-7任一项所述的电焰灶，其特征在于，所述离子针包括支撑杆、可拆卸安装于所述支撑杆的离子头，以及设于所述支撑杆远离所述离子头的一端的外螺纹；所述离子头开设有安装槽，所述支撑杆设有插设于所述安装槽的安装凸起。
PCT/CN2020/102454 2019-07-26 2020-07-16 电焰灶 WO2021017879A1 (zh)

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