Electric cooker anti-scalding protection structure
Patent Information
- Application Number
- CN202521426678.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-09
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-07-09
AI Technical Summary
[0005]为了克服在日常使用传统的电灶工作的过程中，存在现有的电灶的旋钮防烫仅能有限地降低旋钮表面温度，无法从根本上解决热量传导问题；当电灶长时间工作时，旋钮温度仍会逐渐升高至烫伤阈值的问题
[0015]通过金属分隔板位于炉面面板下方且不与上方的炉面面板直接接触，使两者之间形成一个空气间隙层，散热鳍片对金属分隔板具有支撑作用，旋钮轴穿过炉面面板上的固定孔且不与固定孔的内壁接触，再穿过金属分隔板上的孔，最终连接到固定座内炉体的控制阀，加热旋钮和炉面面板之间不直接接触，从而使加热旋钮本身与高温的炉面面板之间无直接接触，通过空气间隙隔离，金属分隔板与炉面面板之间的空气间隙起到隔热层的作用，有效阻隔炉面面板热量向旋钮方向传导，旋钮轴虽然穿过炉面面板，但固定孔较大，接触面积小且热传导路径长，即需要先加热轴，轴再加热加热旋钮，且加热旋钮是固定在金属分隔板上的，而金属分隔板通过散热鳍片与固定座炉体的非高温区连接，本身温度较低，旋钮轴穿过金属分隔板的部分接触的是温度较低的金属分隔板，散热鳍片又通过流动的空气将金属分隔板上的热量带走，从而通过多重隔热机制有效的将旋钮温度保护在一个安全范围，防止用于操作旋钮时烫伤。
Smart Images
Figure CN224787189U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric stove technology, and in particular to an adjustable electric stove anti-scalding protection structure. Background Technology
[0002] In traditional electric stoves, the cooktop panel generates high temperatures during use, and the knobs that control the heating power are usually directly mounted on or in contact with the cooktop panel. This design causes the knobs to absorb heat from the cooktop panel, raising their temperature and making users susceptible to burns during operation.
[0003] In existing technologies, the anti-scalding design of electric stove knobs mainly adopts the method of increasing the size of the knob or wrapping the knob with heat insulation material; however, these methods can only reduce the surface temperature of the knob to a limited extent and cannot fundamentally solve the problem of heat conduction; when the electric stove is working for a long time, the knob temperature will still gradually rise to the scalding threshold.
[0004] Therefore, to address the above problems, a scalding protection structure for adjustable electric stoves is proposed. This structure establishes multiple heat insulation mechanisms between the knob and the high-temperature cooktop panel, including an air gap layer, a metal partition plate, and heat dissipation fins. This effectively blocks the heat conduction path without affecting the normal operation and appearance design of the knob. It can control the knob temperature within a safe range, fundamentally solving the problem of scalding from electric stove knobs. Utility Model Content
[0005] In order to overcome the problem that the existing anti-scalding knobs of traditional electric stoves can only reduce the surface temperature of the knobs to a limited extent during daily use and cannot fundamentally solve the problem of heat conduction; when the electric stove is used for a long time, the knob temperature will still gradually rise to the scalding threshold.
[0006] The technical solution of this utility model is as follows: an adjustable anti-scalding protection structure for an electric stove, comprising a fixed base, a cooktop panel, a heating furnace, a knob shaft, a heating knob, a first protective component, a second protective component, a flow guiding component, and a support component. The cooktop panel is disposed above the fixed base, the heating furnace is disposed above the fixed base, the knob shaft is disposed above the fixed base, the heating knob is disposed at the upper end of the knob shaft, the first protective component is disposed above the fixed base, the second protective component is disposed inside the fixed base, the flow guiding component is disposed on one side of the fixed base, and the support component is disposed below the fixed base. The first protective component includes heat dissipation fins, a metal partition plate, and a fixing hole. The fixing hole is opened inside the cooktop panel, and heat dissipation fins are disposed above the fixed base. Multiple sets of heat dissipation fins are disposed, and a metal partition plate is disposed above the heat dissipation fins. The metal partition plate and the outer surface of the knob shaft are in contact with each other.
[0007] Preferably, a metal partition plate is positioned below the furnace panel and does not directly contact the furnace panel above it, creating an air gap between them. The heat dissipation fins support the metal partition plate. The knob shaft passes through a fixing hole on the furnace panel without contacting the inner wall of the hole, then through a hole in the metal partition plate, and finally connects to the control valve inside the furnace body. The heating knob and the furnace panel do not directly contact each other, thus preventing direct contact between the heating knob itself and the high-temperature furnace panel. Through the air gap, the air gap between the metal partition plate and the furnace panel acts as an insulation layer, effectively blocking heat from the furnace surface. Heat from the panel is conducted towards the knob. Although the knob shaft passes through the oven panel, the fixing hole is relatively large, the contact area is small, and the heat conduction path is long. This means that the shaft needs to be heated first, and then the shaft heats the knob. The knob is fixed to a metal partition plate, which is connected to the non-high-temperature area of the oven body via heat dissipation fins. The metal partition plate itself is at a lower temperature. The part of the knob shaft that passes through the metal partition plate comes into contact with the lower-temperature metal partition plate. The heat dissipation fins then carry away the heat from the metal partition plate through the airflow. Thus, through multiple heat insulation mechanisms, the knob temperature is effectively protected within a safe range to prevent burns when operating the knob.
[0008] Preferably, the second protective component includes a guide groove and a guide rod, with the guide groove provided on the inner side of the fixing seat and the guide rod provided on the inner side of the guide groove.
[0009] Preferably, the second protective component also includes a limiting plate and a connecting frame, with a limiting plate at one end of the guide rod and a connecting frame at the other end of the guide rod.
[0010] Preferably, the second protective component also includes a rotating shaft, a connecting plate, and a heat-insulating ceramic sheet. The rotating shaft is provided on the inner side of the connecting frame, the connecting plate is provided on the outer side of the rotating shaft, and the heat-insulating ceramic sheet is provided on one side of the connecting plate.
[0011] Preferably, the airflow guiding component includes a first fixing plate and a miniature fan, with the first fixing plate disposed on the inner side of the fixing base and the miniature fan disposed on the inner side of the first fixing plate.
[0012] Preferably, the airflow guiding assembly also includes a second fixing plate and an airflow guiding groove. The second fixing plate is provided on the inner side of the fixing base, and the airflow guiding groove is opened on the inner side of the second fixing plate. In use, the airflow is generated by starting the micro fan to carry away the heat on the surface of the heat sink fins, and the airflow is discharged along the airflow guiding groove.
[0013] Preferably, the support assembly includes a bracket and a base, with the bracket located below the mounting base and the base located below the bracket.
[0014] The beneficial effects of this utility model are:
[0015] A metal partition plate is positioned below the cooktop panel without directly contacting it, creating an air gap between them. Heat dissipation fins support the metal partition plate. The knob shaft passes through a mounting hole in the cooktop panel without contacting its inner wall, then through a hole in the metal partition plate, ultimately connecting to the control valve inside the furnace body. The heating knob and cooktop panel are not in direct contact, thus preventing direct contact between the heating knob and the high-temperature cooktop panel. This air gap acts as an insulation layer, effectively preventing heat from reaching the cooktop panel. Heat is conducted towards the knob. Although the knob shaft passes through the oven panel, the fixing hole is relatively large, the contact area is small, and the heat conduction path is long. This means that the shaft needs to be heated first, and then the shaft heats the knob. The knob is fixed to a metal partition plate, which is connected to the non-high-temperature area of the oven body via heat dissipation fins. The metal partition plate itself is at a lower temperature. The part of the knob shaft that passes through the metal partition plate comes into contact with the lower-temperature metal partition plate. The heat dissipation fins then carry away the heat from the metal partition plate through the airflow. Thus, through multiple heat insulation mechanisms, the knob temperature is effectively protected within a safe range to prevent burns when operating the knob. Attached Figure Description
[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the anti-scalding protection structure of the adjustable electric stove of this utility model.
[0017] Figure 2 The diagram shown is a partial three-dimensional structural schematic of the anti-scalding protection structure of the adjustable electric stove of this utility model.
[0018] Figure 3 The diagram shown is a first cross-sectional view of the anti-scalding protection structure of the adjustable electric stove of this utility model.
[0019] Figure 4 The diagram shown is a second cross-sectional view of the anti-scalding protection structure of the adjustable electric stove of this utility model.
[0020] Figure 5 The diagram shown is a plan view of the anti-scalding protection structure of the adjustable electric stove according to this utility model.
[0021] Explanation of reference numerals in the attached drawings: 1. Fixing base; 2. Furnace panel; 3. Heating furnace; 4. Knob shaft; 5. Heating knob; 101. Heat dissipation fins; 102. Metal partition plate; 103. Fixing hole; 201. Guide groove; 202. Guide rod; 203. Limiting plate; 204. Connecting frame; 205. Rotating shaft; 206. Connecting plate; 207. Heat insulation ceramic sheet; 301. First fixing plate; 302. Miniature fan; 303. Second fixing plate; 304. Flow guide groove; 401. Bracket; 402. Base. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Please see Figure 1 and Figure 2 This utility model provides an embodiment: an adjustable anti-scalding protection structure for an electric stove, including a fixed base 1, a cooktop panel 2, a heating furnace 3, a knob shaft 4, a heating knob 5, a first protective component, a second protective component, a flow guiding component, and a support component. The cooktop panel 2 is disposed above the fixed base 1, the heating furnace 3 is disposed above the fixed base 1, the knob shaft 4 is disposed above the fixed base 1, the heating knob 5 is disposed at the upper end of the knob shaft 4, and the first protective component is disposed above the fixed base 1. A second protective component is provided on the inner side, a flow guiding component is provided on one side of the fixing seat 1, and a support component is provided below the fixing seat 1. The first protective component includes heat dissipation fins 101, a metal partition plate 102, and a fixing hole 103. A fixing hole 103 is provided on the inner side of the furnace panel 2. A heat dissipation fin 101 is provided on the upper side of the fixing seat 1. Multiple sets of heat dissipation fins 101 are provided. A metal partition plate 102 is provided on the upper side of the heat dissipation fins 101. The outer surface of the metal partition plate 102 and the knob shaft 4 are in contact with each other.
[0024] Please see Figure 3 , Figure 4 and Figure 5 In this embodiment, the second protective component includes a guide groove 201 and a guide rod 202. The guide groove 201 is provided on the inner side of the fixing base 1, and the guide rod 202 is provided on the inner side of the guide groove 201. The second protective component also includes a limiting plate 203 and a connecting frame 204. The limiting plate 203 is provided at one end of the guide rod 202, and the connecting frame 204 is provided at the other end of the guide rod 202. The second protective component also includes a rotating shaft 205, a connecting plate 206, and a heat-insulating ceramic sheet 207. The rotating shaft 205 is provided on the inner side of the connecting frame 204, and the connecting plate 206 is provided on the outer side of the rotating shaft 205. A heat-insulating ceramic sheet is provided on one side of the connecting plate 206. When in use, the ceramic tile 207 is used to slide the guide rod 202 smoke guide groove 201 by pulling the connecting bracket 204, and the connecting bracket 204 is removed from the inside of the fixed base 1. The limiting plate 203 is used to limit the sliding distance of the guide rod 202. The connecting plate 206 is rotated to make the connecting plate 206 in an inclined state. The inclined connecting plate 206 is placed on the stove panel 2, so that the edge of the electric stove near the user's operating position forms an inclined surface structure. The heat-insulating ceramic tile 207 blocks the transfer of heat. When the user uses the electric stove to cook, it prevents the user's torso near the edge of the electric stove from moving and coming into contact with the stove panel 2, which would cause burns.
[0025] The airflow guiding assembly includes a first fixing plate 301 and a micro fan 302. The first fixing plate 301 is disposed on the inner side of the fixing base 1, and the micro fan 302 is disposed on the inner side of the first fixing plate 301. The airflow guiding assembly also includes a second fixing plate 303 and an airflow guiding groove 304. The second fixing plate 303 is disposed on the inner side of the fixing base 1, and the airflow guiding groove 304 is opened on the inner side of the second fixing plate 303. In use, the micro fan 302 is activated to generate airflow, which carries away the heat from the surface of the heat dissipation fins 101. The airflow is discharged along the airflow guiding groove 304. The support assembly includes a bracket 401 and a base 402. The bracket 401 is disposed below the fixing base 1, and the base 402 is disposed below the bracket 401. In use, the bracket 401 and the base 402 support the fixing base 1, thereby supporting the electric stove.
[0026] During operation, the furnace panel 2 is first fixed above the mounting base 1, with a fixing hole 103 on its surface. A knob shaft 4 passes through this fixing hole 103 and connects to a control valve inside the mounting base 1. A heating knob 5 is installed at the top of the knob shaft 4. The first protective assembly includes a heat dissipation fin 101, a metal partition plate 102, and a fixing hole 103 structure: the heat dissipation fin 101 is vertically fixed above the mounting base 1, and its top supports the metal partition plate 102, forming an air gap between the metal partition plate 102 and the lower surface of the furnace panel 2; The knob shaft 4 passes sequentially through the fixing hole 103 of the stove panel 2 and the center hole of the metal partition plate 102. The knob shaft 4 does not directly contact the inner wall of the fixing hole 103 or the inner wall of the center hole of the metal partition plate 102. The heating knob 5 is only supported by the metal partition plate 102. This design blocks the direct heat conduction from the stove panel 2 to the knob shaft 4 through the air gap. The heat dissipation fins 101 guide the heat of the metal partition plate 102 to the non-high temperature area of the fixing seat 1. Combined with the indirect contact path between the knob shaft 4 and the high temperature area, multiple heat insulation barriers are formed.
[0027] The second protective component uses a deployable heat insulation structure to prevent users from being burned by contact with the edge of the furnace surface. A guide groove 201 is opened on the inner side of the fixing base 1, and the guide rod 202 slides along the guide groove 201. Its end is connected to a limiting plate 203 to prevent it from falling out, and the other end is fixed to a connecting frame 204. When needed, the connecting frame 204 is pulled to fully extend the guide rod 202, and the connecting plate 206 is rotated to an inclined state through the rotating shaft 205, so that the heat insulation ceramic sheet 207 is attached to the edge of the furnace surface panel 2 to form an inclined heat insulation barrier. The airflow guiding assembly consists of a micro fan 302, a first fixing plate 301, a second fixing plate 303, and an airflow guiding channel 304. The first fixing plate 301 is fixed in the fixing base 1 and carries the micro fan 302. The airflow guiding channel 304 is opened on the inner side of the second fixing plate 303. When the micro fan 302 is started, the airflow flows along the gap of the heat dissipation fins 101, accelerates the removal of heat from the metal partition plate 102, and is discharged in a directional manner through the airflow guiding channel 304, so as to avoid the accumulation of hot air inside the furnace body and further enhance the heat dissipation efficiency.
[0028] The support assembly consists of a bracket 401 and a base 402. The bracket 401 is fixed to the bottom of the fixed base 1, and the base 402 increases the contact area to improve stability. In actual use, when the user rotates the heating knob 5 to adjust the power, the knob shaft 4 only transfers a small amount of heat through the low-temperature metal partition plate 102, and the heat dissipation fins 101 continuously dissipate heat, ensuring that the surface temperature of the knob is far below the burn threshold. When the electric stove works for a long time, the air gap layer blocks the radiant heat of the stove panel 2, and the heat conduction of the knob shaft 4 is significantly weakened due to its small contact area and long path. At the same time, the heat-insulating ceramic sheet 207 of the second protective assembly can be deployed at any time to prevent the user's torso from accidentally touching the edge of the stove surface. Through the triple mechanism of physical heat insulation, airflow heat dissipation, and adjustable protective structure, this utility model fundamentally solves the risk of burns from the knobs and edges of traditional electric stoves, taking into account both operational convenience and safety.
[0029] Through the above steps, the metal partition plate 102 is located below the furnace panel 2 and does not directly contact the furnace panel 2 above it, forming an air gap layer between the two. The heat dissipation fins 101 support the metal partition plate 102. The knob shaft 4 passes through the fixing hole 103 on the furnace panel 2 without contacting the inner wall of the fixing hole 103, and then passes through the hole on the metal partition plate 102, finally connecting to the control valve of the furnace body inside the fixing seat 1. The heating knob 5 and the furnace panel 2 do not directly contact each other, thus preventing direct contact between the heating knob 5 itself and the high-temperature furnace panel 2. The air gap between the metal partition plate 102 and the furnace panel 2 acts as an insulation layer, effectively blocking the furnace... Heat from the panel 2 is conducted towards the knob. Although the knob shaft 4 passes through the panel 2, the fixing hole 103 is relatively large, the contact area is small, and the heat conduction path is long. This means that the shaft needs to be heated first, and then the knob 5 needs to be heated. The knob 5 is fixed on the metal partition plate 102. The metal partition plate 102 is connected to the non-high temperature area of the furnace body of the mounting base 1 by heat dissipation fins 101, and its temperature is relatively low. The part of the knob shaft 4 that passes through the metal partition plate 102 contacts the relatively low-temperature metal partition plate 102. The heat dissipation fins 101 also use the flowing air to carry away the heat on the metal partition plate 102. Thus, the knob temperature is effectively protected within a safe range by multiple heat insulation mechanisms to prevent burns when operating the knob.
[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A scald protection structure for an adjustable electric stove, comprising a fixed base (1), a stove panel (2), a heating element (3), a knob shaft (4), and a heating knob (5); characterized in that: It also includes a first protective component, a second protective component, a flow guiding component and a support component. A furnace panel (2) is provided above the fixed base (1). A heating furnace (3) is provided above the fixed base (1). A knob shaft (4) is provided above the fixed base (1). A heating knob (5) is provided at the upper end of the knob shaft (4). A first protective component is provided above the fixed base (1). A second protective component is provided inside the fixed base (1). A flow guiding component is provided on one side of the fixed base (1). A support component is provided below the fixed base (1). The first protective component includes heat dissipation fins (101), a metal partition plate (102) and a fixing hole (103). A fixing hole (103) is provided inside the furnace panel (2). A heat dissipation fin (101) is provided above the fixed base (1). Multiple sets of heat dissipation fins (101) are provided. A metal partition plate (102) is provided above the heat dissipation fins (101). The outer surfaces of the metal partition plate (102) and the knob shaft (4) are in contact with each other.
2. The anti-scalding protection structure for an adjustable electric stove according to claim 1, characterized in that: The second protective component includes a guide groove (201) and a guide rod (202). The guide groove (201) is provided on the inner side of the fixed base (1), and the guide rod (202) is provided on the inner side of the guide groove (201).
3. The anti-scalding protection structure for an adjustable electric stove according to claim 2, characterized in that: The second protective component also includes a limiting plate (203) and a connecting frame (204). One end of the guide rod (202) is provided with a limiting plate (203), and the other end of the guide rod (202) is provided with a connecting frame (204).
4. The anti-scalding protection structure for an adjustable electric stove according to claim 3, characterized in that: The second protective component also includes a rotating shaft (205), a connecting plate (206), and a heat-insulating ceramic sheet (207). The rotating shaft (205) is provided on the inner side of the connecting frame (204), the connecting plate (206) is provided on the outer side of the rotating shaft (205), and the heat-insulating ceramic sheet (207) is provided on one side of the connecting plate (206).
5. The anti-scalding protection structure for an adjustable electric stove according to claim 1, characterized in that: The flow guiding assembly includes a first fixing plate (301) and a miniature fan (302). The first fixing plate (301) is disposed on the inner side of the fixing base (1), and the miniature fan (302) is disposed on the inner side of the first fixing plate (301).
6. The anti-scalding protection structure for an adjustable electric stove according to claim 5, characterized in that: The flow guiding assembly also includes a second fixing plate (303) and a flow guiding groove (304). The second fixing plate (303) is provided on the inner side of the fixing base (1), and the flow guiding groove (304) is provided on the inner side of the second fixing plate (303).
7. The anti-scalding protection structure for an adjustable electric stove according to claim 1, characterized in that: The support assembly includes a bracket (401) and a base (402). The bracket (401) is located below the fixed base (1), and the base (402) is located below the bracket (401).