CN214791295U

CN214791295U - Electric stove composed of electric heating tube and circular hole table top plate

Info

Publication number: CN214791295U
Application number: CN202120174160.3U
Authority: CN
Inventors: 朱永发
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-17
Filing date: 2021-01-17
Publication date: 2021-11-19
Anticipated expiration: 2031-01-17

Abstract

An electric stove composed of an electric heating tube and a circular hole deck plate comprises a circular ring piece, a circular hole deck plate, a metal protecting net, an electric heating tube support shell, a high-temperature-resistant heat-insulating material, an intelligent control circuit board and an electric stove frame bottom plate; the electric cooking stove has no electromagnetic radiation hazard in use, greatly improves the heat efficiency, has no limit on the material of the pot, has no phenomenon of frequently stopping heating automatically when heating at high temperature, is efficient and environment-friendly, and is reliable and durable; can be used for cooking, steaming, boiling, roasting and warming, and is suitable for families, canteens and restaurants.

Description

Electric stove composed of electric heating tube and circular hole table top plate

Technical Field

The utility model belongs to kitchen appliance articles for use, concretely relates to electric stove that electrothermal tube and round hole deck plate are constituteed.

Background

The existing household kitchen uses electric energy to heat the kitchen, such as an electromagnetic oven, a microwave oven, an electric ceramic oven, etc. The common advantages of the electric cooking ranges are that the electric cooking ranges are convenient and clean, and the disadvantages are different.

The first sample was produced in germany in 1957 for a domestic induction cooker, which was produced in the us in 1972 and was marketed in japan in europe and america only after 1980. The induction cooker must be matched with cookware made of magnetic conductive materials for use, the cookware made of the magnetic conductive materials cannot be used, the heat efficiency is about 85%, and the maximum heating temperature is about 270 ℃. After the 21 st century, people pay more and more attention to body health care, and have more understanding on harm of electromagnetic radiation to human bodies, and know that the electromagnetic radiation of an induction cooker is harmful to the human bodies in a high-frequency range of 25KHZ which can generate heat; especially, the power of the electromagnetic oven is more than one kilowatt, the high power can generate very strong electromagnetic radiation, people can cook near the electromagnetic oven for a long time, and the adverse effects on the health of the human body can be generated, especially the adverse effects on people with cardiac pacemaker, cancer patients, weak and sick people, pregnant women and children are particularly prominent. The heating of the microwave oven is carried out in a sealed space, the microwave cannot leak, otherwise the radiation damage to the human body is more serious; the microwave oven can not be used for cooking and steaming, and the practical range is very small.

The electric ceramic stove is produced by assembling parts such as an electric stove plate with about 1000 to 5000 watts, a microcrystalline glass panel, an intelligent control circuit board and the like, and the control circuit board has the function of automatically controlling the heating temperature of the stove plate. The electric ceramic stove enters the domestic market before and after 2007, and the output and sales volume is very small until 2013, because the electric ceramic stove is not well used for Chinese style cooking and stewing, and can be used for cooking soup. After consumers have more knowledge about the electromagnetic radiation hazard of the induction cooker, the production and sales of the electric ceramic cooker are gradually increased because the electric ceramic cooker has no electromagnetic radiation hazard. The electrothermal conversion rate of the iron-chromium-aluminum electrothermal alloy wire of the electric stove plate is less than 80 percent, the civil maximum heating temperature is about 600 ℃, and the material of the heating pot is not limited; the heating plate can not be exposed, otherwise, water or soup falls off during use, so that the danger of electric leakage exists, and the high-temperature electric heating wire is easy to break when meeting water, so that the electric ceramic furnace is covered on the electric heating plate by a microcrystalline glass plate with the thickness of about 4 mm; the heat conductivity of the microcrystalline glass is only 2.4W/MK at 380 ℃, the copper material is 401, and the aluminum material is 237, so that the microcrystalline glass is not a heat conduction material. The electric heating plate and the cooker are separated by non-heat-conducting materials, the microcrystalline glass panel is heated by the electric heating plate firstly, and the cooker is heated by the microcrystalline glass panel, so that the heat efficiency of the electric ceramic stove is greatly reduced; in order to prevent the softening and collapse of the glass-ceramic panel caused by overhigh temperature, a temperature sensor is arranged above the heating plate, when the temperature is up to a limit temperature (mostly set at about 500 ℃), the control circuit board automatically stops heating of the electric heating plate, when the high-firepower frying or cooking is used, the heating is stopped because the temperature exceeds a limit value, and the frying and cooking can not be continuously carried out. The defects of the induction cooker, the microwave oven and the electric ceramic oven are caused by the self heating principle or the structure of the oven body. The defects of the electric cooking range are improved, and the electric cooking range which is free from electromagnetic radiation damage, high in heat efficiency and unlimited in pot material is researched and produced, so that the aim of research and development of kitchen appliances is fulfilled, and the demand of users is also met.

Disclosure of Invention

The utility model discloses can provide one kind and do not have electromagnetic radiation harm in the use, do not have the restriction to the material of pan, the thermal efficiency is high, and continuous heating can not interrupt, controls convenient electric stove.

The technical scheme of the utility model is that: the electric stove consists of an electric heating pipe, a circular hole table top plate, a circular ring piece, a metal protecting net, an electric heating pipe support shell, high-temperature-resistant heat-insulating materials, an electric stove frame bottom plate and an intelligent control circuit board. The electric heating tube is preferably a carbon fiber electric heating tube, and can also be a halogen electric heating tube or a metal electric heating tube. The holes on the circular hole platform panel are circular, polygonal holes or a porous structure formed by gathering a plurality of holes like a screen mesh. The shape of the electric heating tube bracket shell is the same as that of a round basin, and the periphery of the basin is provided with a notch for placing the electric heating tube. The high-temperature-resistant heat-insulating material can bear the high temperature of about one thousand ℃, has good thermal shock resistance, and is attached to the inner side of the electric heating tube support shell to jointly form a round basin-shaped heat-insulating shell. The electric heating tube is arranged in the basin-shaped heat preservation shell, two ends of the electric heating tube extend out of the heat preservation shell, and the lead-out electric wire is connected with the wiring terminal of the intelligent control circuit board. The basin-shaped heat preservation shell is arranged below the circular hole deck plate, the upper opening of the basin-shaped heat preservation shell is tightly attached to the lower surface of the circular hole deck plate, and the central line of the circular hole of the deck plate is superposed with the central line of the circular opening of the basin-shaped heat preservation shell. The diameter of the inner hole of the circular ring piece is the same as that of the circular hole table panel, and the width of the circular ring piece is about 20 to 60 millimeters. The metal protecting net is processed into a circular sheet shape, the diameter of the circular sheet is slightly smaller than the outer diameter of the circular sheet, and the thickness of the circular sheet is about 1 mm. The metal protecting net is adhered to the upper plane of the round hole deck plate by using glue with high temperature resistance, then the ring piece is pressed on the metal protecting net and adhered to the deck plate, and the hole of the ring piece and the hole of the deck plate are aligned. The intelligent control circuit board has the operation functions of a power switch touch key, an electric heating tube power adjusting touch key, a timing touch key, a knob adjusting power and the like, the digital tube is used for displaying the heating power, and the heating power of the electric heating tube is adjusted by operating the touch key of the intelligent circuit board so as to meet the heating temperature required by use. The intelligent control circuit board assembly is installed in a frame bottom plate of the electric stove, the circular hole deck plate assembly is adhered to the upper plane of the frame, position marks of all touch keys are arranged on the plane of the deck plate, and the electric stove finished product can be obtained after the components are assembled.

The analysis shows that the electric ceramic furnace has low heat efficiency, the electric conversion rate of the alloy heating wire of the electric furnace tray is only about 80 percent, and the electric heating element and the heated pot are separated by a table board made of microcrystalline glass, the electric furnace tray indirectly heats the pot, and the microcrystalline glass is a non-heat conducting material, so the heat efficiency of the electric ceramic furnace is greatly reduced. In order to prevent the deformation and collapse of the glass-ceramic panel when the heating temperature is higher than the softening temperature point of the glass-ceramic (about six hundred degrees centigrade), a temperature sensor is needed to limit the heating temperature so as to prevent the softening and collapse of the table panel caused by overhigh temperature, which causes the phenomenon of intermittent heating.

The carbon fiber electric heating tube is the preferred choice for the electric heating tube of the electric stove, because the electric heating conversion rate reaches 95%, the electric heating tube has the highest electric heating conversion rate, can be produced in batches and has stable performance until 2020, the civil heating temperature is about 600 ℃, the service life is about 6000 hours, the power is adjusted, and stepless continuous adjustment can be realized. The heating wavelength of the carbon fiber electric heating tube is in an infrared wavelength range, so that no electromagnetic radiation hazard exists in the use process, and the material of a heated pot is not limited. The table top plate of the electric cooking stove is characterized in that a round hole is cut in the part, above the electric heating pipe, of the table top plate, the electric heating pipe is used for directly heating a pot bottom, the electric heating pipe is additionally arranged in a basin-shaped heat preservation shell, the heat preservation shell can reduce the dispersion of heat energy, the heat energy is gathered to the pot bottom to the greatest extent, and the heat efficiency is improved as much as possible. The carbon fiber electric heating tube is a quartz glass tube, and the quartz glass tube can be used safely without being burst when cold water is poured at 1000 ℃. The circular hole is cut in the part of the microcrystalline glass table top plate above the electric heating tube, so that the problem that the microcrystalline glass table top plate is softened and collapsed due to the fact that the microcrystalline glass table top plate is heated by high temperature beyond limit is solved, a temperature sensor is not needed to limit the heating temperature, the electric heating tube can be used for continuously heating at a high temperature, and the phenomenon that heating is automatically stopped when the electric heating tube is used for cooking or steaming at a high temperature is avoided. If a hard object is knocked to the quartz glass tube, the quartz glass tube is easy to break, which is a weak point of the carbon fiber electric heating tube, and the metal protective net can protect the carbon fiber electric heating tube from being knocked when the carbon fiber electric heating tube is used as far as possible.

In conclusion, through the innovative design, electromagnetic heating is abandoned, and the damage of strong electromagnetic radiation is avoided; the electric heating tube with high heat efficiency is selected, the structure of the table board is improved, the electric heating tube directly heats the cookware, and the cookware can be heated at high temperature continuously. The electric cooking stove has excellent performance and is popular with users due to the lack of market.

Drawings

FIG. 1 is a front view of an electric cooking range composed of an electric heating tube and a circular hole deck plate;

fig. 2 is a top view of the electric cooking stove composed of the electric heating tube and the circular hole table top plate.

Wherein: 1. the electric stove comprises a circular ring piece, 2, a circular hole deck plate, 3, an electric heating tube, 4, an electric heating tube support shell, 5, a high-temperature-resistant heat-insulating layer, 6, an electric stove frame bottom plate, 7 and a metal protecting net.

Detailed Description

As shown in the figure, the electric stove composed of the electric heating tube and the round hole table top plate comprises a circular ring piece 1, a round hole table top plate 2, an electric heating tube 3, an electric heating tube support shell 4, a high temperature resistant heat insulation layer 5, an electric stove frame bottom plate 6 and a metal protection net 7. The electric heating tube 3 is preferably a carbon fiber electric heating tube, or a halogen electric heating tube or a metal electric heating tube, the power of the electric heating tube is determined by combining the application, and the power voltage is 220V alternating current. The electric heating tube support shell 4 is punched into a circular basin shape by using a common steel plate with the thickness of about 0.5 mm, and a notch for installing the electric heating tube 3 and a flanging for installing and fixing the heat preservation shell are made. The high temperature resistant heat insulating layer 5 is made of aluminum silicate fiber cotton blanket or high silica fiber cotton blanket, and is adhered to the bottom surface and the side surface of the electric heating tube support shell 4 after being cut, and the two are combined to form a round basin-shaped heat insulating shell. The circular hole table panel 2 is made by cutting a microcrystalline glass plate with the thickness of about 5 mm, and the size of the circular hole is determined by combining the power of the electric stove, namely the power and the application of the electric heating tube; the outer edge of the round hole deck plate 2 can be square, rectangular or round, and is designed by combining the shape and the main purpose of the electric stove frame bottom plate 6. The electric stove frame bottom plate 6 is formed by stamping a metal plate. The ring piece 1 is also formed by cutting a microcrystalline glass plate, the inner diameter of the ring piece is the same as that of the round hole table panel 2, and the width of the ring piece is about 20 to 60 millimeters. The metal protecting net 7 is made of a stainless steel wire net. The intelligent control circuit board assembly, the utility model discloses a supporting use, not in the scope of innovative design and right protection, so do not show this part in the schematic diagram of structure, also do not describe here in detail.

The assembly of the electric stove, cut the high temperature resistant thermal insulation material 5 well first, laminate in the tubular electric heating element support shell 4 becomes the round basin shape insulation shell; then the electric heating tube 3 is fixed in the notch of the basin-shaped heat preservation shell. The metal protecting net 7 is bonded on the upper plane round mouth of the round hole deck plate 2 by glue with high temperature of thousand degrees centigrade, and then the ring piece 1 is pressed on the protecting net 7 to be bonded on the deck plate 2, and the hole of the ring piece 1 is aligned with the round hole of the deck plate 2. Several nuts for fixing the electric heating tube support shell 4 are adhered to the lower surface of the circular hole table panel 2 according to determined positions. After the bonding glue is solidified, the combined part of the basin-shaped heat preservation shell with the electric heating tube 3 is installed and fixed on a plurality of bonded nuts under the round hole deck plate 2 by using screws, and the high temperature resistant heat insulation layer 5 is tightly attached to the lower surface of the deck plate 2. And then the components of the circular hole table panel 2 are adhered to the upper plane of the frame of the electric stove frame bottom plate 6, the power line of the electric heating tube 3 is connected to the wiring terminal of the intelligent control circuit board, the power line with the plug of the electric stove is connected from the frame, and finally the bottom plate of the electric stove frame bottom plate 6 is installed, namely the assembly of the electric stove is completed.

The electric stove composed of the electric heating tube and the circular hole table panel can be used for cooking, stewing, barbecuing, rinsing a pot and warming; the novel electric cooking stove has the advantages of simple operation, practical function, high efficiency, energy conservation, safety and environmental protection, and can become a novel electric cooking stove popular with users.

Claims

1. An electric stove composed of an electric heating tube and a circular hole deck plate is characterized by comprising the electric heating tube, the circular hole deck plate, a metal protecting net, a circular ring piece, an electric heating tube support shell, high-temperature-resistant heat-insulating materials, an electric stove frame bottom plate and an intelligent control circuit board; the electric heating tube is arranged in a basin-shaped heat preservation shell combined by an electric heating tube support shell and a high-temperature-resistant heat insulation material, the basin-shaped heat preservation shell is arranged below the circular hole deck plate, the upper opening of the basin-shaped heat preservation shell is tightly attached to the lower surface of the circular hole deck plate, and the central line of the circular hole deck plate is superposed with the central line of the basin-shaped heat preservation shell.

2. The electric heating tube and circular hole countertop of claim 1, which comprises: the holes on the circular hole table panel are circular, can also be polygonal, or are a porous structure formed by gathering a plurality of holes like a screen.

3. The electric heating tube and circular hole countertop of claim 1, which comprises: the high temperature resistant heat insulating material and the electric heating tube support shell are combined to form a basin-shaped heat insulating shell.

4. The electric heating tube and circular hole countertop of claim 1, which comprises: the upper plane of the round hole deck plate is bonded with a metal protecting net and a circular ring sheet.