CN208424801U - Food cooking machine glass heats chassis - Google Patents

Abstract

The utility model relates to a kind of food cooking machine glass to heat chassis, including the anticracking sheet glass resistant to high temperature with a thickness of 3-5mm, it is 0.5-0.8mm heating tank that the bottom surface of the sheet glass, which opens up depth, the heating tank is covered with the bottom surface of sheet glass, it is 0.25-0.4mm heating wire that diameter is inlaid in the heating tank, sealant is filled between the heating tank and heating wire, the heating rooved face is covered with mica sheet, the mica sheet is equipped with two or more holes, and the positive and negative anodes of the heating wire are drawn from hole.During electrically heated, glass plate is heated evenly the utility model, and heat transfer is uniformly and heating is fast；There is no the short problems of the long-term excessively high caused service life of local temperature.

Description

Food cooking machine glass heats chassis

Technical field

The utility model relates to heat chassis technology field, and in particular to a kind of food cooking machine glass heating chassis.

Background technique

Food cooking machine is one of the electric appliance of daily life indispensability, and food cooking machine used more and more extensive, tool in recent years There is the food cooking machine of heating function, heating speed is fast, temperature is high, is typically provided heated base, electrically heated on pedestal Rationally, electric heating wire and external insulation encapsulate, and using ensures safety for wiring.

At present wall-breaking machine, juice extractor, soy bean milk making machine chassis be all made of stainless steel plate, the upper surface of stainless steel plate directly contains Water, the thick resistance wire of the one circle electric heating of bottom end welding of stainless steel plate, passes through the both ends connection PCB component of resistance wire, PCB group Part controls the on-off of power supply, is conducted heat by the fever of resistance wire and stainless steel plate, by wall-breaking machine, juice extractor, soy bean milk making machine In juice it is boiled.Although easy to use, had the following problems in use process:

1, the thick resistance wire of the one circle electric heating of bottom end welding of stainless steel plate, often stainless steel plate contact have thick resistance wire End face on due to instantaneous temperature rise it is too fast because the coefficient of dilatation of glass and stainless steel is different, glass cooking machine cup Body is easily broken, and increases production cost；

2, the end face of thick resistance wire is in the condition of high temperature within the period of energization, the place for leading to high temperature is easy adhesion There is a food cooking, food materials are easy sticky end and burnt, it is not easy to clean；Meanwhile the part of heating dish is easy to oxidize, long-time service There is the brownish oxide layer of a circle in the upper surface of bottom of the pot disk, and bottom of the pot disk service life is short, at high cost；

3, the top end face of stainless steel plate is directly contacted with the juice to be drunk, and stainless steel plate is during heating, a huge sum of money Category is easy to be precipitated in the state of high temperature, pollutes, is detrimental to health to juice is drunk.

Therefore, in the prior art, stainless steel heats chassis bring inconvenience to urgent need to resolve.

Have in the prior art using food cooking machine glass heating chassis as heating dish, but it is generally viscous using heating film It connects on glass chassis, this heating structure is easy to cause heating film to fall off, and affects the service life on heating chassis.

Summary of the invention

The purpose of this utility model is to overcome existing wall-breaking machine, juice extractor, soy bean milk making machines using existing for heating chassis Drawbacks described above, and a kind of food cooking machine glass heating chassis is provided.

To solve the above problems, the utility model proposes a kind of food cooking machine glass heat chassis, including with a thickness of The anticracking of 3-5mm sheet glass resistant to high temperature, it is 0.5-0.8mm heating tank that the bottom surface of the sheet glass, which opens up depth, described to add Heat channel is covered with the bottom surface of sheet glass, and it is 0.25-0.4mm heating wire, the heating tank and hair that diameter is inlaid in the heating tank Sealant is filled between heated filament, the heating rooved face is covered with mica sheet, and the mica sheet is equipped with two or more The positive and negative anodes in hole, the heating wire are drawn from hole.

In the above-mentioned technical solutions, temperature sensor is bonded on the sheet glass, temperature sensor is controlled by temperature Device controls the on-off between the electrode and power supply of heating wire.

In the above-mentioned technical solutions, the heating tank is the arragement construction of multiple concentric circular ring shape, is evenly arranged in glass Piece bottom surface.

In the above-mentioned technical solutions, heating tank is the arragement construction of rectangle convolution.

Alternatively, being provided centrally with hole in sheet glass, temperature sensor is interspersed in hole, temperature sensor is tight by nut Gu being provided with sealing ring between the temperature sensor and the hole at sheet glass center.

The sheet glass used in food cooking machine glass heating chassis in the utility model is break-resistance pyroceram hair Hot plate.

Using the heating chassis of the utility model, heater strip is inlayed into heating tank, then by sealant that heater strip is close Sealing is scheduled in heating tank, then the surface of heating tank is bonded in mica sheet, make mica sheet by heater strip in inert gas or It is sealed under conditions of nitrogen, solves the problems, such as that heating film or heating sheet are covered on glass plate performance and are easy to fall off, In heating process, good insulation and heat-blocking action are played；During electrically heated, glass plate is heated evenly, and heat transfer is uniform And heating is fast；There is no local temperature it is long-term it is excessively high caused by service life short problem, and glass chassis is contacted with water Heavy metal, heavy metal free pollution will not be precipitated in upper surface.

Since glass surface is smooth, general substance is all not easy attachment up, is not easy to be sticking in high-temperature heating process, holds Easy cleaning；The chemical stabilization of glass, not perishable, not taint of odour road；Bonding temperature sensitization apparatus is as temperature sensing on the glass sheet Device controls the temperature in heating process, prevents heating sheet glass dry combustion method, and safety coefficient is high.

Using the heating chassis of the utility model, with clear advantage: one, heat utilization efficiency is high, and energy-saving effect is brighter It is aobvious；Two, heating wire is due to there is the protection of inert gas or nitrogen, it is not easy to aoxidize, greatly extend service life；Three, it does Net health is used in various household electrical appliance baking trays, such as Broiled Dishes, toaster first-class.

Detailed description of the invention

Fig. 1 is that the utility model heats chassis schematic cross-sectional view；

Fig. 2 is the utility model overlooking structure diagram；

Fig. 3 is the utility model mica sheet structural schematic diagram.

In figure: 1, sheet glass；2, heating tank；3, heating wire；4, sealant；5, mica sheet；6, hole；7, temperature sensor； 8, nut；9, sealing ring.

Specific embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments:

Embodiment one

The utility model food cooking machine glass heats chassis, as depicted in figs. 1 and 2, including resistance to a thickness of the anticracking of 3mm The sheet glass 1 of high temperature, it is 0.5mm heating tank 2 that the bottom surface of sheet glass 1, which opens up depth, and heating tank 2 is covered with the bottom surface of sheet glass 1, adds It is 0.25mm heating wire 3 that diameter is inlaid in heat channel 2, and sealant 4,2 table of heating tank are filled between heating tank 2 and heating wire 3 Face is covered with mica sheet 5, and mica sheet 5 is equipped with two or more holes 6, as shown in figure 3, the positive and negative anodes of heating wire 3 are from hole 6 It draws.

Temperature sensor 7 is bonded on sheet glass 1, temperature sensor 7 controls the electrode of heating wire by temperature controller On-off between power supply.Heating tank 2 is the arragement construction of multiple concentric circular ring shape, is evenly arranged in 1 bottom surface of sheet glass.

Preparation process comprises the steps of:

Step (1): taking anticracking sheet glass 1 resistant to high temperature, and with a thickness of 3mm, opening up depth in 1 bottom surface of sheet glass is 0.5mm Heating tank 2, heating tank 2 are covered with the bottom surface of sheet glass 1；

Step (2): being that 0.25mm heating wire 3 is inlayed to heating tank by diameter under conditions of inert gas or nitrogen In 2；

Step (3): under conditions of inert gas or nitrogen, sealant is filled into heating tank 2；

Step (4): drilling 6 on mica sheet 5, drilling 6 be it is two or more, the positive and negative anodes of heating wire 3 pass through mica sheet It draws in hole on 5；

Step (5): being covered on heating rooved face for mica sheet 5, by sealant adhering and sealing, so that heating wire and glass Isolation outside glass piece bottom surface.

Embodiment two

The utility model food cooking machine glass heats chassis, as shown in Fig. 2, including the anticracking high temperature resistant with a thickness of 4mm Sheet glass 1, it is 0.8mm heating tank 2 that the bottom surface of sheet glass 1, which opens up depth, and heating tank 2 is covered with the bottom surface of sheet glass 1, heating tank It is 0.4mm heating wire 3 that diameter is inlaid in 2, and sealant 4, the covering of 2 surface of heating tank are filled between heating tank 2 and heating wire 3 There is mica sheet 5, mica sheet 5 is equipped with two or more holes 6, and the positive and negative anodes of heating wire 3 are drawn from hole 6.

Sheet glass 1 is provided centrally with hole, and temperature sensor 7 is interspersed in hole, and temperature sensor 7 is fastened by nut 8, temperature Sealing ring 9 is provided between degree sensor 7 and the hole at 1 center of sheet glass, heating tank 2 is the arrangement knot of multiple concentric circular ring shape Structure is evenly arranged in 1 bottom surface of sheet glass.Heating tank 2 is the arragement construction of rectangle convolution, is evenly arranged in sheet glass bottom surface.

The preparation process on food cooking machine glass heating chassis comprises the steps of:

Step (1): taking anticracking sheet glass resistant to high temperature, and with a thickness of 5mm, opening up depth in the sheet glass bottom surface is 0.8mm heating tank, heating tank are covered with the bottom surface of sheet glass；

Step (2): being that 0.4mm heating wire is inlayed to heating tank by diameter under conditions of inert gas or nitrogen In；

Step (3): under conditions of inert gas or nitrogen, sealant is filled into heating tank；

Step (4): drilling on mica sheet, drills to be two or more, and the two poles of the earth of heating wire pass through the hole on mica sheet It draws；

Step (5): being covered on heating rooved face for mica sheet, by sealant adhering and sealing, so that heating wire and glass Isolation outside piece bottom surface.

Heating tank is arranged as rectangle room structure, is evenly arranged in sheet glass bottom surface.

The sheet glass used in food cooking machine glass heating chassis in the utility model is break-resistance pyroceram hair Hot plate, sealant are the silica gel of edible grade.

The electrically heated circuit theory of the utility model is as follows:

The two poles of the earth (two electrodes) of heating wire are drawn by the hole on mica sheet, two electrode extraction wires, conducting wire connection Bimetal strip thermostat, bimetal strip thermostat connect the first coupler by conducting wire, and the first coupler is of coupled connections the second coupling Device, the second coupler are arranged on power supply chassis, and the second coupler connects power supply.Bimetal strip thermostat and the first coupling Device is fixed at 1 bottom surface of sheet glass.

Power supply inside chassis is provided with control circuit board, and the circuit structure of control circuit board includes single-chip microcontroller, relay, electricity Flow detection unit, single-chip microcontroller controls power supply, signal amplification circuit；

Relay is connected in series in second coupler and current detecting unit, signal amplification circuit are connected in current detecting in parallel Unit both ends, the input terminal of the output end connection single-chip microcontroller of signal amplification circuit, the output end of single-chip microcontroller connect relay, monolithic The power input connection single-chip microcontroller of machine controls power supply, when the electric current of current detecting unit is greater than given threshold, monolithic machine testing To the current value and relay disconnection is controlled, single-chip microcontroller control power supply connection power supply provides power supply for single-chip microcontroller.

The heating resistor that heat-generating disc welds above is made of benign Heat Conduction Material, and (heat-generating disc is arranged in sheet glass 1 heat-generating disc Lower section) on heating resistor or sheet glass 1 on heat emitting medium connection electrode, pass through the first coupler and the second coupler It is of coupled connections, the principle that power circuit is constituted between heating wire (or heating film, heating resistor) and power supply is as follows:

First coupler and the second coupler are of coupled connections, and the lower section of sheet glass 1 is arranged in heat-generating disc, carry out heat transfer, Heating resistor or heat emitting medium connection electrode, electrode extraction wire, conducting wire connect bimetal strip thermostat, bimetal leaf temperature control Device connects the first coupler by conducting wire, and the first coupler is of coupled connections with the second coupler, the second coupler connection control electricity Road plate, the electric current in current detecting unit measure loop in control circuit board, the electric current of current detecting unit are less than or wait When given threshold, single-chip microcontroller detects the current value, and controls contact relay connection, keeps the second coupler and power supply Connection.

When the intracorporal fluid temperature of pot reaches 100 DEG C, bimetallic that sheet glass 1 contacts temperature sensing to bottom surface therewith The elastic slice of piece temperature controller, bimetal strip thermostat disconnects, so that the circuit between the first coupler and conducting wire disconnects, stops supplying Electricity.

Glass pot body is placed on power supply chassis, the first coupler and the second coupler are of coupled connections, by lower kettle body Switch, bimetal strip thermostat closure, make to form current supply circuit between electrode and power supply, the electric heating connecting with electrode Silk, heating film, heating resistor or heat emitting medium fever, are heated to sheet glass 1, when reaching bimetal strip thermostat to boil liquid body Preset temperature value when, bimetal strip thermostat disconnect, stop power supply.

The heating chassis assembling structure of the utility model heats chassis for juice extractor, soy bean milk making machine, wall-breaking machine.

The entire assembly structure design of the utility model is reasonable, and sealing is close.Undersurface of bottom disc is heated in food cooking machine glass It is evenly arranged electric heating wire, entire chassis is heated evenly during heating, and avoiding local water temperature over-high leads to glass Cooking machine cup body is easily broken, and is improved cooking machine cup unit service life, is reduced production cost.

The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.

Claims (5)

1. a kind of food cooking machine glass heats chassis, it is characterised in that: including the anticracking glass resistant to high temperature with a thickness of 3-5mm Glass piece (1), it is 0.5-0.8mm heating tank (2) that the bottom surface of the sheet glass (1), which opens up depth, and the heating tank (2) is covered with glass The bottom surface of glass piece (1), it is 0.25-0.4mm heating wire (3) that diameter is inlaid in the heating tank (2), the heating tank (2) with Sealant (4) are filled between heating wire (3), heating tank (2) surface is covered with mica sheet (5), on the mica sheet (5) Equipped with two or more holes (6), the positive and negative anodes of the heating wire (3) are drawn from hole (6).

2. food cooking machine glass heats chassis according to claim 1, it is characterised in that: be bonded on the sheet glass (1) Have temperature sensor (7), the temperature sensor (7) is controlled logical between the electrode and power supply of heating wire by temperature controller It is disconnected.

3. food cooking machine glass heats chassis according to claim 1, it is characterised in that: the heating tank (2) is multi-turn The arragement construction of concentric circles annular is evenly arranged in sheet glass (1) bottom surface.

4. food cooking machine glass heats chassis according to claim 1, it is characterised in that: the heating tank (2) is rectangle The arragement construction of convolution.

5. food cooking machine glass heats chassis according to claim 1, it is characterised in that: sheet glass (1) is provided centrally with Hole is interspersed with temperature sensor (7) in hole, and temperature sensor (7) passes through nut (8) and fastens, the temperature sensor (7) and glass Sealing ring (9) are provided between the hole at glass piece (1) center.