CN219523064U

CN219523064U - Graphene heating sheet hot bed

Info

Publication number: CN219523064U
Application number: CN202223308211.0U
Authority: CN
Inventors: 李日江; 谭凯友; 欧阳晓标
Original assignee: Shenzhen Yuntu Chuangzhi Technology Co ltd
Current assignee: Shenzhen Yuntu Chuangzhi Technology Co ltd
Priority date: 2022-12-10
Filing date: 2022-12-10
Publication date: 2023-08-15
Anticipated expiration: 2032-12-10

Abstract

The utility model provides a graphene heating sheet hot bed applied to a 3D printer, which comprises a hot bed substrate, graphene heating sheets and heat insulation cotton, wherein the heat insulation cotton is arranged on the hot bed substrate, the graphene heating sheets are arranged between the hot bed substrate and the heat insulation cotton, and one side of each graphene heating sheet is provided with a lead wire, and the graphene heating sheet hot bed has the beneficial effects that: the graphene heating plate has high safety coefficient, and after the graphene heating plate is damaged, the internal structure is destroyed, so that the resistance value is increased, the heating temperature is reduced, and adverse consequences such as fire disaster and the like are avoided; the graphene heating plate is heated by adopting DC current, so that the use is safer.

Description

Graphene heating sheet hot bed

[ field of technology ]

The utility model relates to the technical field of 3D printers, in particular to a graphene heating sheet hot bed applied to a 3D printer.

The graphene is separated from the graphite sheet by a mechanical stripping method from 2 0 0 4 years by Anderie-Galm (A n d r e G e i m) and Constantin-Norvoronoi (Konstantin Novoselov), and is known as the "perfect material" because of the properties of high strength and toughness, good conductivity, excellent light transmittance, excellent heat conductivity and the like, so that the graphene is widely developed and utilized by people to be applied to various fields;

the 3D printer of the FDM process generally uses filament-like or granular consumable materials, and through temperature control, the consumable materials are brought into a molten state, extruded through a nozzle, and laid and molded according to a set path under program control. The extrusion control part of the consumable is called a printing head (Hotend), the printing head consists of a radiator, a throat, a heating block and a nozzle, the printing head is a core component of the 3D printer, and the performance of the printing head directly influences the overall performance of the 3D printer;

the aluminum substrate on the market is composed of three layers of aluminum plates, copper foils and heat-conducting insulators, so that the heating efficiency is lower, the heating is uneven, and the power consumption is higher.

[ utility model ]

The utility model aims to solve the technical problems and provides a novel graphene heating sheet hot bed applied to a 3D printer, wherein a graphene heating sheet is heated by DC current, so that the novel graphene heating sheet hot bed is safer to use, higher in heating efficiency, uniform in heating and lower in power consumption.

The utility model is realized by the following technical scheme:

the utility model provides a graphene heating piece hot bed, is applied to graphene heating piece hot bed on 3D printer, includes hot bed base plate, graphene heating piece, heat preservation cotton, be equipped with the heat preservation cotton on the hot bed base plate, the hot bed base plate with be equipped with graphene heating piece between the heat preservation cotton, graphene heating piece one side is equipped with the lead wire.

Further, the high-temperature-resistant double faced adhesive tape is further included, the high-temperature-resistant double faced adhesive tape is arranged between the hot bed substrate and the graphene heating sheet, and the high-temperature-resistant double faced adhesive tape is also arranged between the graphene heating sheet and the heat preservation cotton.

Further, the middle part of the hot bed substrate is provided with a thermistor mounting hole, the thermistor is arranged in the thermistor mounting hole in the middle part of the hot bed substrate, one side of the hot bed substrate is provided with a charging port, and the charging port is electrically connected with a lead wire on the graphene heating plate.

Further, a through hole is formed in the middle of the graphene heating plate, and the thermistor in the middle of the hot bed substrate is wrapped in the through hole in the middle of the graphene heating plate.

Further, the graphene heating sheet is heated by DC current.

Further, the hot bed substrate is made of a hot bed aluminum substrate.

The utility model has the beneficial effects that:

(1) Compared with copper foil in the market, the graphene heating plate is heated by adopting DC current, so that the graphene heating plate is safer to use, higher in heating efficiency, uniform in heating and lower in power consumption;

(2) The thermistor at the middle part of the hot bed substrate wraps the through hole at the middle part of the graphene heating plate, the safety coefficient of the graphene heating plate is high, and after the graphene heating plate is damaged, the internal structure is destroyed, so that the resistance value is increased, the heating temperature is reduced, and adverse effects such as fire disaster are avoided.

[ description of the drawings ]

FIG. 1 is a schematic diagram of a thermal bed structure of a graphene heating sheet according to the present utility model;

FIG. 2 is a schematic diagram of the explosion structure of a graphene heating sheet hot bed according to the present utility model;

FIG. 3 is a schematic view of a thermal bed substrate structure according to the present utility model;

fig. 4 is a schematic structural diagram of a graphene heating sheet according to the present utility model;

reference numerals: 1. a hot bed substrate; 11. a thermistor mounting hole; 12. a charging port; 2. a graphene heating sheet; 21. a lead wire; 22. a through hole; 3. thermal insulation cotton; 4. high temperature resistant double faced adhesive tape.

[ detailed description ] of the utility model

The utility model is further described with reference to the accompanying drawings and detailed description below:

unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model; the terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Referring to fig. 1-2, a graphene heating sheet hot bed applied to a 3D printer comprises a hot bed substrate 1, a graphene heating sheet 2 and heat insulation cotton 3, wherein the heat insulation cotton 3 is arranged on the hot bed substrate 1, the graphene heating sheet 2 is arranged between the hot bed substrate 1 and the heat insulation cotton 3, a lead 21 is arranged on one side of the graphene heating sheet 2, the problem that the graphene heating sheet 2 is combined with the hot bed substrate 1 is solved, and under the condition that the lead 21 of the graphene heating sheet 2 is electrified, phonons, ions and electrons are generated in a resistor by carbon molecules in an electrothermal film, heat energy is generated by mutual friction and collision between generated carbon molecule groups, the heat energy is uniformly radiated in an infrared mode, and the heat generation is stable and safe.

Preferably, the high-temperature-resistant double faced adhesive tape (4) is further included, the high-temperature-resistant double faced adhesive tape (4) is arranged between the hot bed substrate (1) and the graphene heating sheet (2), and the high-temperature-resistant double faced adhesive tape (4) is also arranged between the graphene heating sheet (2) and the heat insulation cotton (3).

Preferably, a thermistor mounting hole 11 is formed in the middle of the hot bed substrate 1, a thermistor is arranged in the thermistor mounting hole 11 in the middle of the hot bed substrate 1, a charging port 12 is formed in one side of the hot bed substrate 1, and the charging port 12 is electrically connected with a lead 21 on the graphene heating sheet 2.

Preferably, the through hole 22 is arranged in the middle of the graphene heating plate 2, the thermistor in the middle of the hot bed substrate 1 is wrapped in the through hole 22 in the middle of the graphene heating plate 2, the problem that the safety coefficient of the graphene heating plate 2 is high is solved, and after the graphene heating plate 2 is damaged, the internal structure is destroyed, so that the resistance is increased, the heating temperature is reduced, and adverse effects such as fire disaster are avoided.

Preferably, the graphene heating sheet 2 is heated by a DC current.

Preferably, the hot bed substrate 1 is a hot bed aluminum substrate.

Graphene heating plate working principle:

the graphene heating sheet 2 is combined with the hot bed substrate 1, under the condition that the lead wires 21 of the graphene heating sheet 2 are electrified, phonons, ions and electrons are generated in the resistor by carbon molecules in the electrothermal film, heat energy is generated by mutual friction and collision among generated carbon molecular groups, and is uniformly radiated in an infrared mode.

Modifications and variations of the above embodiments will be apparent to those skilled in the art in light of the above teachings. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the utility model should be also included in the scope of the claims of the utility model. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present utility model in any way.

Claims

1. Graphene heating sheet hot bed applied to 3D printer, its characterized in that: the thermal insulation cotton is arranged on the thermal bed substrate, the graphene heating sheet is arranged between the thermal bed substrate and the thermal insulation cotton, and a lead is arranged on one side of the graphene heating sheet.

2. The graphene heating sheet hotbed of claim 1, wherein: the high-temperature-resistant double faced adhesive tape is arranged between the hot bed substrate and the graphene heating sheet, and the high-temperature-resistant double faced adhesive tape is also arranged between the graphene heating sheet and the heat insulation cotton.

3. The graphene heating sheet hotbed of claim 1, wherein: the thermal bed comprises a thermal bed substrate, and is characterized in that a thermistor mounting hole is formed in the middle of the thermal bed substrate, a thermistor is arranged in the thermistor mounting hole in the middle of the thermal bed substrate, a charging port is formed in one side of the thermal bed substrate, and the charging port is electrically connected with a lead wire on the graphene heating plate.

4. A graphene heating sheet hotbed as claimed in claim 3, wherein: the middle part of the graphene heating plate is provided with a through hole, and the thermistor at the middle part of the hot bed substrate is wrapped in the through hole at the middle part of the graphene heating plate.

5. The graphene heating sheet hotbed of claim 1, wherein: the graphene heating sheet is heated by DC current.

6. The graphene heating sheet hotbed of claim 1, wherein: the hot bed substrate is made of a hot bed aluminum substrate.