CN211509307U - Vacuum heating device - Google Patents
Vacuum heating device Download PDFInfo
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- CN211509307U CN211509307U CN202020421752.6U CN202020421752U CN211509307U CN 211509307 U CN211509307 U CN 211509307U CN 202020421752 U CN202020421752 U CN 202020421752U CN 211509307 U CN211509307 U CN 211509307U
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- heat
- frame
- generating device
- vacuum heat
- electric heating
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Abstract
The utility model relates to a device that generates heat that electrical apparatus used, specifically speaking relate to a vacuum device that generates heat. The heating plate and the frame jointly enable an inner cavity of the frame to form a closed space, and the closed space is vacuumized. The utility model has the advantages of simple and reasonable structure design, the commonality is strong, can be used to the portion that generates heat of various electrical apparatus such as oven, electric ceramic stove, electromagnetism stove, electric kettle. The heat efficiency is high, the heat loss is low, the energy is saved, the influence of heat on the circuit board is obviously reduced, and the power of the heating body can be reduced due to the improvement of the heat efficiency.
Description
Technical Field
The utility model relates to a device that generates heat that electrical apparatus used, specifically speaking relate to a vacuum device that generates heat.
Background
The existing products such as an oven, an electric kettle, an induction cooker, an electric ceramic stove and the like adopt an electric heating tube or an electric heating plate to generate heat, so that the heat efficiency is low, the heat loss is large, especially, the damage of heat to the inside of an electric appliance is more increased, a fan is required to be added for heat dissipation, and a large number of heat dissipation holes are required to be formed in a shell.
Disclosure of Invention
Therefore, an object of the present invention is to provide a vacuum heating device with high thermal efficiency and low heat loss.
The purpose of the utility model is realized like this.
A vacuum heating device comprises a heating plate and a frame, wherein the frame is provided with at least one opening, the heating plate is arranged at the opening, the heating plate and the frame jointly enable an inner cavity of the frame to form a closed space, and the closed space is vacuumized.
The technical scheme can be further perfected as follows.
And a heat reflection device is arranged in the closed space, and the heat reflection device is thermally blocked from the frame.
The heat reflection device is suspended in the closed space.
A first auxiliary supporting piece for supporting the heating plate in an auxiliary mode is arranged between the heat reflecting device and the heating plate.
And a second auxiliary supporting piece for assisting in supporting the heat reflecting device is arranged between the heat reflecting device and the frame.
And a power supply connector of the heating plate is arranged on the frame.
The heating plate comprises a base body and an electric heating body, and the electric heating body is positioned on the inner surface of the base body.
The electric heating body is a graphene heating body, or a nickel-chromium alloy heating body, or a carbon fiber heating body.
The substrate is toughened glass or microcrystalline glass or ceramic or mica material.
The electric heating body comprises an electric heating layer, a silver paste electrode in conductive connection with the electric heating layer, and an insulating layer arranged on the outer surfaces of the electric heating layer and the silver paste electrode, and one end of the silver paste electrode penetrates out of the insulating layer.
The utility model has the advantages of simple and reasonable structure design, the commonality is strong, can be used to the portion that generates heat of various electrical apparatus such as oven, electric ceramic stove, electromagnetism stove, electric kettle. The heat efficiency is high, the heat loss is low, the energy is saved, the influence of heat on the circuit board is obviously reduced, and the power of the heating body can be reduced due to the improvement of the heat efficiency.
Drawings
Fig. 1 is an exploded view of embodiment 1.
FIG. 2 is a schematic view of the structure of example 1.
Fig. 3 is a schematic diagram of a heat-generating plate structure according to embodiment 1.
Fig. 4 is a schematic structural diagram of embodiment 2.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
The embodiment is combined with figures 1, 2 and 3, and a vacuum heating device comprises a heating plate 1 and a frame 2, wherein the top surface of the frame is an open structure, the heating plate 1 is arranged at the opening, the heating plate and the frame jointly enable the inner cavity of the frame to form a closed space 3, the frame is provided with a vacuumizing port 4, the closed space 3 can be vacuumized, and the vacuum degree is generally between 1 and 300 Pa
The heat reflection device 5 is arranged in the closed space and is parallel to the heating plate, and the heat reflection device 5 comprises a heat reflection layer 7 and a heat insulation layer 8. The heat reflecting layer 7 can reflect heat back to the heat generating plate, and the heat loss to the outer side of the frame is reduced as much as possible by the heat insulating layer and the heat reflecting layer.
The heat reflecting layer 7 and the heat insulating layer 8 are suspended below the heating plate, the periphery of the heat reflecting layer 7 is separated from the frame or connected through other heat insulating materials, and the heat reflecting layer 7 and the heat insulating layer 8 are installed in a suspension mode or supported through stand columns.
The power supply connector 9 of the heating plate 1 is arranged on the frame 2.
The heating plate 1 comprises a base body 10 and an electric heating body 11, wherein the base body 10 is positioned above the electric heating body 11, and the electric heating body 11 is a graphene heating body, or a nickel-chromium alloy heating body, or a carbon fiber heating body. The substrate 10 is toughened glass or microcrystalline glass or ceramic or mica material. The electric heating body 11 comprises an electric heating layer 12, a silver paste electrode 13 in conductive connection with the electric heating layer, and an insulating layer 14 arranged on the outer surfaces of the electric heating layer and the silver paste electrode, wherein one end of the silver paste electrode 13 penetrates out of the insulating layer 14 to be electrically connected with the power connector 9 to realize electric conduction.
Example 2, in conjunction with fig. 3, example 2 differs from example 1 in that: a first auxiliary supporting piece 20 for supporting the heating plate in an auxiliary manner is arranged between the heat reflecting layer 7 and the heating plate 1, and the first auxiliary supporting piece can be made of fiber substances which are heat-insulating, have certain hardness and are light.
A second auxiliary support 30 for auxiliary supporting the heat reflecting layer 7 and the heat insulating layer 8 is arranged between the heat insulating layer 8 and the frame below the heat insulating layer. The second auxiliary support may be of a fibrous type which is both thermally insulating and somewhat rigid, yet lightweight.
Claims (10)
1. A vacuum heating device is characterized in that: the heating plate and the frame jointly enable an inner cavity of the frame to form a closed space, and the closed space is vacuumized.
2. The vacuum heat-generating device according to claim 1, wherein: and a heat reflection device is arranged in the closed space, and the heat reflection device is thermally blocked from the frame.
3. The vacuum heat-generating device according to claim 2, characterized in that: the heat reflection device is suspended in the closed space.
4. The vacuum heat-generating device according to claim 3, characterized in that: a first auxiliary supporting piece for supporting the heating plate in an auxiliary mode is arranged between the heat reflecting device and the heating plate.
5. The vacuum heat-generating device according to claim 3, characterized in that: and a second auxiliary supporting piece for assisting in supporting the heat reflecting device is arranged between the heat reflecting device and the frame.
6. The vacuum heat-generating device according to claim 1, wherein: and a power supply connector of the heating plate is arranged on the frame.
7. The vacuum heat-generating device according to claim 1, wherein: the heating plate comprises a base body and an electric heating body, and the electric heating body is positioned on the inner surface of the base body.
8. The vacuum heat-generating device according to claim 7, wherein: the electric heating body is a graphene heating body, or a nickel-chromium alloy heating body, or a carbon fiber heating body.
9. The vacuum heat-generating device according to claim 7, wherein: the substrate is toughened glass or microcrystalline glass or ceramic or mica material.
10. The vacuum heat-generating device according to claim 8, wherein: the electric heating body comprises an electric heating layer, a silver paste electrode in conductive connection with the electric heating layer, and an insulating layer arranged on the outer surfaces of the electric heating layer and the silver paste electrode, and one end of the silver paste electrode penetrates out of the insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020421752.6U CN211509307U (en) | 2020-03-28 | 2020-03-28 | Vacuum heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020421752.6U CN211509307U (en) | 2020-03-28 | 2020-03-28 | Vacuum heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211509307U true CN211509307U (en) | 2020-09-15 |
Family
ID=72403390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020421752.6U Active CN211509307U (en) | 2020-03-28 | 2020-03-28 | Vacuum heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211509307U (en) |
-
2020
- 2020-03-28 CN CN202020421752.6U patent/CN211509307U/en active Active
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