CN216531842U

CN216531842U - Electric heating device

Info

Publication number: CN216531842U
Application number: CN202123248965.7U
Authority: CN
Inventors: 孙永军; 陈海舵; 雷治春
Original assignee: Zhongshan Xind Electric Appliance Manufacturing Co ltd
Current assignee: Zhongshan Xind Electric Appliance Manufacturing Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-05-13
Anticipated expiration: 2031-12-22

Abstract

An electric heating device comprises a heating wire for heating and a winding support, wherein the heating wire is wound on the winding support at intervals, and the heating wire with the winding support and an electromagnetic coil formed by winding a metal belt are respectively overlapped on a heat insulation piece from top to bottom. The wire winding support is formed after being radially cross-connected by a plurality of substrates, the end part of the substrate is supported against the inner wall of the heat insulation ring, the substrate is positioned above the electromagnetic coil, a plurality of assembly holes are formed in the substrate along the length direction at intervals, the heating wire is arranged in the assembly holes in a penetrating mode and is sequentially coiled outwards from the middle along the circumferential direction, or a plurality of grooves are formed in the top surface of the substrate along the length direction at intervals, and the heating wire is embedded in the grooves and is sequentially coiled outwards from the middle along the circumferential direction. The utility model has the characteristic of good stability.

Description

Electric heating device

Technical Field

The utility model relates to an electric heating device.

Background

Chinese patent document No. CN 201368497Y discloses an electric-heating-electromagnetic integrated oven in 2009, 12.23, which includes a housing, a ceramic glass magnetic plate, and a circuit control device, wherein an electric heating element and an electromagnetic generating element are arranged in the housing, the electric heating element is a heat radiation oven plate, and the electromagnetic generating element is an electromagnetic wire plate. The support for fixing the thermal radiation furnace plate and the electromagnetic generating element is arranged in the shell, the support and the thermal radiation furnace plate are isolated by a heat insulator, and the coil plate and the thermal radiation furnace plate are isolated by the heat insulator. At present, all electromagnetic coils are formed by winding enameled wires, when the coil is damp or the temperature of the coil is too high, the electromagnetic wire coil is easily damaged, the stability is poor, and the electromagnetic wire coil is also easily influenced due to the fact that the heat of the heating wire during working is too high, so that the improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electric heating device with good stability so as to overcome the defects in the prior art.

The electric heating device comprises an electric heating wire for heating, and is structurally characterized by further comprising a winding support, wherein the electric heating wire is wound on the winding support at intervals, and the electric heating wire with the winding support and an electromagnetic coil formed by winding a metal strip are respectively arranged on the heat insulation piece in an up-and-down overlapping mode.

Further, the wire winding support comprises after being radial cross connection by a plurality of base plates, and the tip of base plate supports and leans on the inner wall of heat-insulating ring, and the base plate is located solenoid's top, and the base plate is provided with a plurality of pilot holes along its length direction interval, and the heating wire is worn to establish in a plurality of pilot holes and coils the setting outwards from the centre in proper order, and perhaps, the top surface of base plate is provided with a plurality of recesses along its length direction interval, and the heating wire inlays to establish in a plurality of recesses and coils the setting outwards from the centre in proper order along circumference.

Furthermore, electric heating device still includes thermal-insulated ring, and the centre of heat insulating part is the protrusion upwards and is provided with the arch, and thermal-insulated ring is located bellied outside and the bottom crimping of thermal-insulated ring at the top edge of heat insulating part, and the inner wall of heat insulating ring encloses into heating chamber with bellied outer wall jointly, and the heating wire that has the wire winding support and solenoid superpose respectively from top to bottom and set up in heating chamber.

Further, the electric heating device also comprises a mica sheet, and the lower edge of the heat insulation piece is in compression joint with the mica sheet.

Further, the electric heating device further comprises a hollow insulating support disc, the heat insulation piece and the mica sheet are arranged in the insulating support disc, and the heat insulation ring is clamped between the protrusion and the inner wall of the insulating support disc.

Furthermore, the electric heating device further comprises a hollow binding post, a first positioning hole is formed in the heat insulation piece, a second positioning hole is formed in the mica sheet, a third positioning hole is formed in the insulating support disc, the first positioning hole, the second positioning hole and the third positioning hole are arranged in a coaxial mode, the upper portion of the binding post penetrates through the third positioning hole and the second positioning hole in sequence and then is inserted into the first positioning hole, a positioning boss is arranged on the outer wall of the lower portion of the binding post, and the bottom of the mica sheet is pressed on the positioning boss.

Further, electric heating device still includes the magnetic stripe, and the bottom of insulating support dish is provided with a plurality of thermal-insulated muscle that are radial along circumference interval, should insulate against heat on the muscle along its length direction interval be provided with a plurality of assembly grooves, and the magnetic stripe setting is in the assembly groove, and the magnetic stripe is located the below of mica sheet.

The heating wire is wound on the winding bracket at intervals, and the heating wire with the winding bracket and the electromagnetic coil wound by the metal belt are respectively overlapped on the heat insulation piece from top to bottom; through coiling the heating wire interval on having high temperature resistance wire winding support, the heating wire can not lead to the fact the influence to the solenoid that is located its below at the high temperature that the during operation produced to because solenoid need not to form through using the enameled wire coiling, consequently do not have because of the coil high temperature, the factor such as weing causes the interturn short circuit and damages the electromagnetic disc, thereby improved the stability of product and the life of product.

The electric heating device also comprises a heat insulation ring, wherein a bulge is convexly arranged in the middle of the heat insulation piece upwards, the heat insulation ring is positioned at the outer side of the bulge, the bottom of the heat insulation ring is pressed at the upper edge of the heat insulation piece, the inner wall of the heat insulation ring and the outer wall of the bulge jointly enclose a heating chamber, and an electric heating wire with a winding support and an electromagnetic coil are respectively overlapped up and down in the heating chamber; need set up radiator fan in the ordinary electromagnetism stove and dispel the heat that solenoid produced, because this product is the solenoid that adopts the strap coiling to form, so the heat that solenoid itself produced and the heat that the heating wire produced all can not produce any influence to solenoid, so this product can all be used for the heating with the heat of all productions, secondly, the heat gathering is in the airtight heating chamber relatively that is enclosed by heat insulating ring and heat insulating part, and the heat up transmits cooking utensil, thereby the energy consumption utilization ratio of this product has been improved.

In conclusion, the utility model has the characteristic of good stability.

Drawings

Fig. 1 is an exploded view of an embodiment of the present invention.

FIG. 2 is an exploded view of the present invention from another perspective.

Fig. 3 is a schematic perspective view of the winding frame of the present invention.

Fig. 4 is a schematic perspective view of the assembled structure of the present invention.

FIG. 5 is a cross-sectional view of the present invention with the wire winding frame, the heating wire and the electromagnetic coil removed.

In the figure: 1 is thermal-insulated ring, 2 is the heating wire, 3 is solenoid, 4 is the heat insulating part, 4.1 is first locating hole, 4.3 is the arch, 5 is the mica sheet, 5.1 is the second locating hole, 6 is the magnetic stripe, 7 is the insulating support dish, 7.1 is the third locating hole, 7.2 is the assembly groove, 8 is the wire winding support, 8.1 is the pilot hole, 8.2 is the base plate, 9 is the terminal.

Detailed Description

The utility model is further described with reference to the following figures and examples.

Referring to fig. 1 to 5, the electric heating device includes a heating wire 2 for heating, and further includes a winding support 8, the heating wire 2 is wound on the winding support 8 at intervals, and the heating wire 2 with the winding support 8 and an electromagnetic coil 3 wound by a metal tape are respectively stacked up and down on a heat insulating member 4.

More specifically, the heat insulation piece is a heat insulation disc or a heat insulation board.

Winding support 8 comprises after being radial cross connection by a plurality of base plates 8.2, the tip of base plate 8.2 supports and leans on heat insulating ring 1's inner wall, base plate 8.2 is located solenoid 3's top, base plate 8.2 is provided with a plurality of pilot holes 8.1 along its length direction interval, heating wire 2 wears to establish in a plurality of pilot holes 8.1 and coils the setting outwards in proper order along circumference from the centre, perhaps, base plate 8.2's top surface is provided with a plurality of recesses along its length direction interval, heating wire 2 inlays to establish in a plurality of recesses and coils the setting outwards in proper order along circumference from the centre.

In this embodiment, when the mounting hole on the base plate is worn to establish by the heating wire, the heating wire is located the middle part of wire winding support, and when the recess on the base plate was established to the heating wire inlay, the heating wire was located wire winding support's top, and two kinds of technical scheme can be fixed the heating wire equally.

The electric heating device further comprises a heat insulation ring 1, wherein a protrusion 4.3 is upwards and convexly arranged in the middle of the heat insulation piece 4, the heat insulation ring 1 is positioned on the outer side of the protrusion 4.3, the bottom of the heat insulation ring 1 is pressed on the upper edge of the heat insulation piece 4, the inner wall of the heat insulation ring 1 and the outer wall of the protrusion 4.3 jointly form a heating cavity, and a heating wire 2 with a winding support 8 and an electromagnetic coil 3 are respectively and vertically stacked and arranged in the heating cavity.

The electric heating device also comprises a mica sheet 5, and the lower edge of the heat insulation piece 4 is in compression joint with the mica sheet 5.

In this embodiment, the mica sheet plays an insulating and heat dissipating role, and the influence of the downward heat transfer on other components is avoided.

The electric heating device further comprises a hollow insulating support disc 7, the heat insulation piece 4 and the mica sheet 5 are arranged in the insulating support disc 7, and the heat insulation ring 1 is clamped between the protrusion 4.3 and the inner wall of the insulating support disc 7.

In this embodiment, the insulating support plate is made of a high-temperature resistant material that cannot be heated by electromagnetic waves.

The electric heating device further comprises a hollow binding post 9, a first positioning hole 4.1 is formed in the heat insulation piece 4, a second positioning hole 5.1 is formed in the mica sheet 5, a third positioning hole 7.1 is formed in the insulating support disc 7, the first positioning hole 4.1, the second positioning hole 5.1 and the third positioning hole 7.1 are arranged coaxially, the upper portion of the binding post sequentially penetrates through the third positioning hole 7.1 and the second positioning hole 5.1 and then is inserted into the first positioning hole 4.1, a positioning boss is arranged on the outer wall of the lower portion of the binding post, and the bottom of the mica sheet 5 is pressed on the positioning boss.

More specifically, the binding post is of a structure with a small upper part and a large lower part.

The electric heating device further comprises a magnetic stripe 6, a plurality of radial heat insulation ribs are arranged at the bottom of the insulating support disc 7 at intervals along the circumferential direction, a plurality of assembling grooves 7.2 are arranged on the heat insulation ribs at intervals along the length direction of the heat insulation ribs, the magnetic stripe 6 is arranged in the assembling grooves 7.2, and the magnetic stripe 6 is located below the mica sheet 5.

In this embodiment, because the magnetic permeability of the magnetic strip is high, the magnetic lines of force emitted by the electromagnetic coil can be gathered, and the magnetic field intensity acting on the cooking utensil is increased, so that the heating efficiency is increased.

The product also has the following effects: when the electric heating wire and the electromagnetic coil work simultaneously or independently, the purposes of high heating speed and uniform heating in the same heating area can be achieved, and no requirement is provided for cooking utensils placed on the product, so that the application range of the product is expanded.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for the convenience of description and simplicity of description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model, the terms "first" and "second" are used for descriptive purposes only, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, and such changes and modifications are within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An electric heating device comprises an electric heating wire (2) used for heating, and is characterized by further comprising a winding support (8), wherein the electric heating wire (2) is wound on the winding support (8) at intervals, and the electric heating wire (2) with the winding support (8) and an electromagnetic coil (3) formed by winding a metal strip are respectively vertically stacked on a heat insulation piece (4).

2. The electric heating device as claimed in claim 1, wherein the winding frame (8) is formed by connecting a plurality of substrates (8.2) in a radial cross manner, the end of the substrate (8.2) abuts against the inner wall of the heat insulation ring (1), the substrate (8.2) is located above the electromagnetic coil (3), the substrate (8.2) is provided with a plurality of assembly holes (8.1) at intervals along the length direction thereof, the heating wires (2) are inserted into the assembly holes (8.1) and are sequentially wound outwards from the middle along the circumferential direction, or the top surface of the substrate (8.2) is provided with a plurality of grooves at intervals along the length direction thereof, and the heating wires (2) are inserted into the grooves and are sequentially wound outwards from the middle along the circumferential direction.

3. The electric heating device according to claim 1, further comprising a heat insulation ring (1), wherein a protrusion (4.3) is protruded upwards from the middle of the heat insulation member (4), the heat insulation ring (1) is located outside the protrusion (4.3), the bottom of the heat insulation ring (1) is pressed on the upper edge of the heat insulation member (4), the inner wall of the heat insulation ring (1) and the outer wall of the protrusion (4.3) together define a heating chamber, and the electric heating wire (2) with the winding support (8) and the electromagnetic coil (3) are respectively arranged in the heating chamber in an up-and-down overlapping manner.

4. An electric heating device according to claim 3, characterized in that it further comprises a mica sheet (5), and the lower edge of the heat insulating member (4) is crimped onto the mica sheet (5).

5. The electric heating device according to claim 4, characterized by further comprising a hollow insulating support disc (7), the heat insulating member (4) and the mica sheet (5) being arranged in the insulating support disc (7), the heat insulating ring (1) being sandwiched between the protrusions (4.3) and the inner wall of the insulating support disc (7).

6. The electric heating device according to claim 5, further comprising a hollow terminal (9), wherein the heat insulating member (4) is provided with a first positioning hole (4.1), the mica sheet (5) is provided with a second positioning hole (5.1), the insulating bracket disc (7) is provided with a third positioning hole (7.1), the first positioning hole (4.1), the second positioning hole (5.1) and the third positioning hole (7.1) are coaxially arranged, the upper portion of the terminal sequentially passes through the third positioning hole (7.1) and the second positioning hole (5.1) and then is inserted into the first positioning hole (4.1), the outer wall of the lower portion of the terminal is provided with a positioning boss, and the bottom of the mica sheet (5) is pressed on the positioning boss.

7. The electric heating device as claimed in claim 5, further comprising a magnetic stripe (6), wherein the bottom of the insulating support plate (7) is provided with a plurality of radial heat insulating ribs at intervals along the circumferential direction, the heat insulating ribs are provided with a plurality of assembling grooves (7.2) at intervals along the length direction, the magnetic stripe (6) is arranged in the assembling grooves (7.2), and the magnetic stripe (6) is positioned below the mica sheet (5).