CN201919186U - Electromagnetic-heating-type safety electric heating plate - Google Patents

Electromagnetic-heating-type safety electric heating plate Download PDF

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Publication number
CN201919186U
CN201919186U CN2010206848651U CN201020684865U CN201919186U CN 201919186 U CN201919186 U CN 201919186U CN 2010206848651 U CN2010206848651 U CN 2010206848651U CN 201020684865 U CN201020684865 U CN 201020684865U CN 201919186 U CN201919186 U CN 201919186U
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CN
China
Prior art keywords
panel
coil
type safety
heat
heating plate
Prior art date
Application number
CN2010206848651U
Other languages
Chinese (zh)
Inventor
许广胜
许珊珊
王寅
Original Assignee
许广胜
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 许广胜 filed Critical 许广胜
Priority to CN2010206848651U priority Critical patent/CN201919186U/en
Application granted granted Critical
Publication of CN201919186U publication Critical patent/CN201919186U/en

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Abstract

The utility model relates to an electromagnetic-heating-type safety electric heating plate, which comprises a shell, a panel, a control circuit, an insulating plate and a coil, wherein the panel is a flat panel, the coil is spirally wound, is fixedly installed at the lower part of the panel and is electrically connected with the control circuit, and the insulating plate is fixedly installed between the panel and the coil. One another type of the electromagnetic-heating-type safety electric heating plate is characterized in that the longitudinal section of the panel and the longitudinal section of the insulating plate are unbottomed-rectangle-shaped, circular grooves are respectively arranged below the respective flat panels of the panel and the insulating plate, the circular groove of the panel is sheathed in the circular groove of the insulating plate, and the coil is a solenoid and is fixedly sheathed outside the wall of the circular groove of the insulating plate. The electromagnetic-heating-type safety electric heating plate has the advantages and beneficial effects that since the coil generates vortexes to heat the panel and the panel is a heating body, thermal inertia is small and the temperature of the panel can be increased and decreased rapidly after the heating plate is powered on and off; since the thickness of the insulating plate is small and a gap between the panel and the coil is small, electromagnetic conversion efficiency is high, more electric energy is saved, the heating plate is convenient to maintain and the service life of the heating plate is long; and at the same time, electricity and heat are fully isolated from each other and safety performance is improved.

Description

The electromagnetic heating type safety electric heating plate

Technical field

The utility model relates to heater, particularly a kind of electromagnetic heating type safety electric heating plate.

Background technology

Electric hot plate is oven dry, drying that is widely used in sample and the heater of making other humid tests, be physics, chemistry, the biology laboratory of school, the widely used heater in laboratory of departments such as heredity, medicine, environment-friendly laboratory and food, epidemic prevention, medical treatment and scientific research.

At present the electric hot plate that uses comprises shell, control circuit, panel and heater element, wherein heater element one class be lectrothermal alloy wire as exothermic material,, place under the panel as insulating material with the mica soft board; Another kind of is electric heating tube, and electric heating tube casts from aluminium (iron) dish or welds, is embedded under aluminium (iron) panel.Heater element is communicated with control circuit, and control circuit is by the break-make of electric current or the size of the electric current that control is passed through in the thermostat control heater element, with the temperature that keeps panel in suitable temperature.The heater element of this class electric hot plate is resistance element, and the heat efficiency is lower, and the heater element of electric heating one and panel, housing contacts are close, and especially insulating material easily lost efficacy and causes panel charged under the high temperature, and the life injury accident easily takes place.

The utility model content

The purpose of this utility model is exactly the above-mentioned defective that will overcome prior art, and a kind of efficient, safe electromagnetic heating type safety electric heating plate is provided.

For achieving the above object, the electromagnetic heating type safety electric heating plate that the utility model provides, comprise shell, panel and control circuit, also comprise heat-insulating shield and coil in the described shell, described panel is a flat board, be bearing in the top of described shell, described coil stationary is installed in the bottom of described panel and links to each other with described control circuit electricity, and described heat-insulating shield is fixedly mounted between described panel and the described coil.

The utility model electromagnetic heating type safety electric heating plate, wherein said coil be line formula coiling in the shape of a spiral in one plane, and the number of described coil reaches the size of panel area as required can install 1~4, is distributed under the described panel.

The utility model electromagnetic heating type safety electric heating plate, the cross section diameter of wherein said coil are 2.5 millimeters, and by stranded the forming of the high temperature resistant enamel covered wire of multiply, the appearance of described coil has resin-sealed layer.

The utility model electromagnetic heating type safety electric heating plate, wherein said heat-insulating shield are glass mat or asbestos board, and its thickness is less than 3 millimeters.

The utility model electromagnetic heating type safety electric heating plate, wherein said panel adopt ferrimagnet to make, and are stainless steel material or cast iron materials.

For achieving the above object, the another kind of electromagnetic heating type safety electric heating plate that the utility model provides, comprise shell, panel and control circuit, also comprise heat-insulating shield and coil in the described shell, the longitudinal section of described panel and the longitudinal section of described heat-insulating shield all are " ∏ " type, the two is respectively equipped with circular recess below flat board separately, described heat-insulating shield is positioned at the below of described panel, the circular recess of described panel is sleeved in the circular recess of described heat-insulating shield, described panel is bearing in the top of described shell, described coil is a solenoid, and the circular cell wall that described coil stationary is sleeved on described heat-insulating shield links to each other outward and with described control circuit electricity.

The advantage and the good effect of the utility model electromagnetic heating type safety electric heating plate are: because heater element is a coil, it produces eddy current heats up panel, and panel is exactly a heater, so thermal inertia is little, and plate face heating-cooling rapidly behind the switching electricity.Heat-insulating shield adopts glass mat or asbestos board to constitute, its thin thickness, and the gap is littler between panel and the coil, so electromagnetic conversion efficient is higher, saves electric energy more, and easy to maintenance, useful life is also long.Simultaneously because the coil integral sealing and and panel between nonmetallic heat-insulating shield is arranged, electric heating is isolated fully, thereby security performance improves greatly, has guaranteed user's personal safety.

Be elaborated with reference to accompanying drawing below in conjunction with embodiment.

Description of drawings

Fig. 1 is that the master of the utility model electromagnetic heating type safety electric heating plate embodiment one looks cutaway view;

Fig. 2 is the vertical view of the utility model electromagnetic heating type safety electric heating plate embodiment one;

Fig. 3 is that the master of the utility model electromagnetic heating type safety electric heating plate embodiment two looks cutaway view.

Embodiment

Describe the embodiment one of the utility model electromagnetic heating type safety electric heating plate in detail below in conjunction with accompanying drawing.

With reference to Fig. 1, the electromagnetic heating type safety electric heating plate that the utility model provides comprises heat-insulating shield 3 and coil 2 in shell 1, panel 4, the shell 1, and control circuit 5.Panel 4 is bearing in the top of shell 1.Panel 4 is made for ferrimagnet, as stainless steel material, cast iron materials etc.The cross section diameter of coil 2 is 2.5 millimeters, and by stranded the forming of the high temperature resistant enamel covered wire of multiply, the appearance of coil 2 has resin-sealed layer.Heat-insulating shield 3 is glass mat or asbestos board, and its thickness is less than 3 millimeters.

Panel 4 is a flat board.With reference to Fig. 2, coil 2 is line formula coiling in the shape of a spiral in one plane.Coil 2 is fixedly mounted on the bottom of panel 4 and links to each other with control circuit 5 electricity, and coil 2 reaches the size of panel 4 areas as required can install 1~4, and embodiment one is 2, is distributed on panel 4 times, so that the temperature of panel 4 is more even.Heat-insulating shield 3 is fixedly mounted between panel 4 and the coil 2.

Describe the embodiment two of the utility model electromagnetic heating type safety electric heating plate in detail below in conjunction with accompanying drawing.

With reference to Fig. 3, the electromagnetic heating type safety electric heating plate that the utility model provides comprises heat-insulating shield 3 and coil 2 in shell 1, panel 4, the shell 1, and control circuit 5.Panel 4 is bearing in the top of shell 1.Panel 4 is made for ferrimagnet, as stainless steel material, cast iron materials etc.The cross section diameter of coil 2 is 2.5 millimeters, and by stranded the forming of the high temperature resistant enamel covered wire of multiply, the appearance of coil 2 has resin-sealed layer.Heat-insulating shield 3 is glass mat or asbestos board, and its thickness is less than 3 millimeters.

The longitudinal section of the longitudinal section of panel 4 and heat-insulating shield 3 all is " ∏ " type, and the two is respectively equipped with circular recess below flat board separately, and heat-insulating shield 3 is positioned at the below of panel 4, and the circular recess of panel 4 is sleeved in the circular recess of heat-insulating shield 3.Coil 2 is a solenoid, and the circular cell wall that is fixedly set in heat-insulating shield 3 links to each other outward and with control circuit 5 electricity.

In two embodiment of the utility model electromagnetic heating type safety electric heating plate, the temperature control part in the control circuit is similar with the electric hot plate of prior art, comes the break-make of control circuit or the size of the electric current that control is passed through by thermostat.The circuit of control coil is similar with the widely used control circuit of prior art electromagnetic oven, can be according to actual needs simplified on the multistage adjusting of power output and testing circuit.

Because panel is exactly a heater, thermal inertia is little, plate face heating-cooling rapidly behind the switching electricity.Heat-insulating shield adopts glass mat or asbestos board to constitute, its thin thickness, and the gap is littler between panel and the coil, so electromagnetic conversion efficient is higher, saves electric energy more, and easy to maintenance, useful life is also long.

Because the coil integral sealing and and panel between nonmetallic heat-insulating shield is arranged, electric heating is isolated fully, thereby security performance improves greatly, has guaranteed user's personal safety.

Embodiment recited above is described preferred implementation of the present utility model, is not that design of the present utility model and scope are limited.Under the prerequisite that does not break away from the utility model design concept; various modification and improvement that this area ordinary person makes the technical solution of the utility model; all should drop into protection range of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.

Claims (9)

1. electromagnetic heating type safety electric heating plate, comprise shell (1), panel (4) and control circuit, it is characterized in that: also comprise heat-insulating shield (3) and coil (2) in the described shell (1), described panel (4) is a flat board, be bearing in the top of described shell (1), described coil (2) is fixedly mounted on the bottom of described panel (4) and links to each other with described control circuit (5) electricity, and described heat-insulating shield (3) is fixedly mounted between described panel (4) and the described coil (2).
2. electromagnetic heating type safety electric heating plate according to claim 1 is characterized in that: wherein said coil (2) is line formula coiling in the shape of a spiral in one plane, and the number of coil (2) is 1~4, is distributed under the panel (4).
3. electromagnetic heating type safety electric heating plate according to claim 1 and 2 is characterized in that: the cross section diameter of wherein said coil (2) is 2.5 millimeters, and by stranded the forming of the high temperature resistant enamel covered wire of multiply, the appearance of described coil (2) has resin-sealed layer.
4. electromagnetic heating type safety electric heating plate according to claim 3 is characterized in that: wherein said heat-insulating shield (3) is glass mat or asbestos board, and its thickness is less than 3 millimeters.
5. electromagnetic heating type safety electric heating plate according to claim 4 is characterized in that: wherein said panel (4) adopts ferrimagnet to make, and is stainless steel material or cast iron materials.
6. electromagnetic heating type safety electric heating plate, comprise shell (1), panel (4) and control circuit, it is characterized in that: also comprise heat-insulating shield (3) and coil (2) in the described shell (1), the longitudinal section of the longitudinal section of described panel (4) and described heat-insulating shield (3) all is " ∏ " type, the two is respectively equipped with circular recess below flat board separately, described heat-insulating shield (3) is positioned at the below of described panel (4), the circular recess of described panel (4) is sleeved in the circular recess of described heat-insulating shield (3), described panel (4) is bearing in the top of described shell (1), described coil (2) is a solenoid, and the circular cell wall that described coil (2) is fixedly set in described heat-insulating shield (3) links to each other outward and with described control circuit (5) electricity.
7. electromagnetic heating type safety electric heating plate according to claim 6 is characterized in that: the cross section diameter of wherein said coil (2) is 2.5 millimeters, and by stranded the forming of the high temperature resistant enamel covered wire of multiply, the appearance of described coil (2) has resin-sealed layer.
8. according to the electromagnetic heating type safety electric heating plate of claim 6 or 7, it is characterized in that: wherein said heat-insulating shield (3) is glass mat or asbestos board, and its thickness is less than 3 millimeters.
9. electromagnetic heating type safety electric heating plate according to claim 8 is characterized in that: wherein said panel (4) adopts ferrimagnet to make, and is stainless steel material or cast iron materials.
CN2010206848651U 2010-12-28 2010-12-28 Electromagnetic-heating-type safety electric heating plate CN201919186U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206848651U CN201919186U (en) 2010-12-28 2010-12-28 Electromagnetic-heating-type safety electric heating plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206848651U CN201919186U (en) 2010-12-28 2010-12-28 Electromagnetic-heating-type safety electric heating plate

Publications (1)

Publication Number Publication Date
CN201919186U true CN201919186U (en) 2011-08-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010206848651U CN201919186U (en) 2010-12-28 2010-12-28 Electromagnetic-heating-type safety electric heating plate

Country Status (1)

Country Link
CN (1) CN201919186U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102361523A (en) * 2011-09-22 2012-02-22 淮南联合大学 Electromagnetic heating type electrothermal sleeve
CN102438343A (en) * 2011-09-22 2012-05-02 淮南联合大学 Electromagnetic heating closed electric furnace
CN102513173A (en) * 2011-12-26 2012-06-27 淮南联合大学 Electromagnetic heating water bath kettle with nonmetal kettle body
CN103096551A (en) * 2011-11-04 2013-05-08 孙安民 Split type electromagnetic preheating furnace for thermal assembly
CN103561495A (en) * 2013-11-07 2014-02-05 乐山市同源科技有限公司 Electromagnetic thermal converter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102361523A (en) * 2011-09-22 2012-02-22 淮南联合大学 Electromagnetic heating type electrothermal sleeve
CN102438343A (en) * 2011-09-22 2012-05-02 淮南联合大学 Electromagnetic heating closed electric furnace
CN103096551A (en) * 2011-11-04 2013-05-08 孙安民 Split type electromagnetic preheating furnace for thermal assembly
CN102513173A (en) * 2011-12-26 2012-06-27 淮南联合大学 Electromagnetic heating water bath kettle with nonmetal kettle body
CN103561495A (en) * 2013-11-07 2014-02-05 乐山市同源科技有限公司 Electromagnetic thermal converter

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110803

Termination date: 20111228