CN218587350U

CN218587350U - Graphene heating pipe

Info

Publication number: CN218587350U
Application number: CN202222452576.4U
Authority: CN
Inventors: 于刃非; 李秋波
Original assignee: Jiangsu Zhi Mr Electrical Appliances Co ltd
Current assignee: Mr. Zhi Electrical Appliances (Jiangsu) Co.,Ltd.
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2023-03-07
Anticipated expiration: 2032-09-16

Abstract

A graphene heating pipe is characterized by comprising a quartz pipe, a guard ring, a heating body, an electrode and a connecting terminal, wherein the heating body is arranged in the quartz pipe and comprises fiber cloth, a graphene heating layer and a silver paste layer, the graphene heating layer is formed in the surface of the fiber cloth, and the silver paste layer is formed at two ends of the fiber cloth; two electrodes are respectively arranged on the silver paste layer, each electrode is in a roll shape and has elasticity, and the electrodes are tightly contacted with the silver paste layer by using the elasticity. The heating body is obtained by combining fiber cloth with a graphene heating layer, the fiber cloth is directly used as the heating body, the heating body is planar instead of traditional tubular, the area is larger, the whole temperature of the heated object can be raised more quickly, and the energy-saving effect is achieved. The rolled electrode can well contact the silver paste layer, stable conduction is guaranteed, the arrangement is simple, and the operation is reliable and stable.

Description

Graphene heating pipe

Technical Field

The utility model relates to an electric heating element especially relates to an utilize heating pipe that infrared ray generated heat.

Background

The existing infrared heating pipe is generally composed of a quartz pipe, molybdenum sheets arranged at two ends of the quartz pipe and connected with a power supply, and a heating pipe arranged in the quartz pipe, wherein the quartz pipe is vacuumized to protect a heating wire from continuously and stably working for a long time in a vacuum environment.

The related documents refer to the chinese utility model patent with the patent number zl200520026160.X, the far infrared heating tube (the publication number CN 2798481Y), and also refer to the chinese invention patent application with the application number 201810960509.9, which discloses a far infrared electric heating tube (the publication number CN 109041286A).

Although the existing infrared heating tube has the advantages of simple structure and low cost, the following defects exist: firstly, the heating wire is easy to be burnt out, which can cause the quartz tube to burst; secondly, the infrared wavelength is not long enough, and the heat radiation conversion efficiency needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to foretell technical current situation and provide a graphite alkene heating pipe that electrothermal efficiency is high and safe.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a graphene heating pipe is characterized by comprising

The quartz tube is provided with a closed inner cavity, and inert gas or nitrogen is filled in the inner cavity or the inner cavity is vacuum;

two guard rings respectively arranged at two ends of the quartz tube;

the heating element is arranged in the quartz tube and comprises fiber cloth, a graphene heating layer and silver paste layers, wherein the graphene heating layer is formed in the surface of the fiber cloth, and the silver paste layers are formed at two ends of the fiber cloth;

two electrodes respectively arranged on the silver paste layer, each electrode is in a roll shape and has elasticity, and the electrodes are tightly contacted with the silver paste layer by utilizing the elasticity; and

and two connecting terminals, one end of each connecting terminal is connected with the respective electrode, and the other end of each connecting terminal extends out of the guard ring to form a plug-in end.

Preferably, the quartz tube is flat, and the quartz tube is assembled so that the width direction of the quartz tube coincides with the width direction of the heating element. The flat quartz tube is more convenient for subsequent packaging.

Furthermore, the heating body is arranged on the bottom surface of the quartz tube, the upper end of the electrode is abutted against the inner wall of the top of the quartz tube, and the lower end of the electrode tightly presses the electrode on the inner wall of the bottom of the quartz tube.

Preferably, the electrode is rolled from a sheet-like body into an inverted "e" shaped structure.

Compared with the prior art, the utility model has the advantages of: the heating body is obtained by combining fiber cloth with a graphene heating layer, the heating body is directly used as a heating body in a fiber cloth form, the heating body is planar rather than in a traditional tubular form, the area of the heating body is larger, the whole temperature of a heated object can be raised more quickly, the energy-saving effect is achieved, in addition, the area of the heated object subjected to heat radiation is larger, the whole temperature rise is more uniform, and the better baking and curing effect is achieved; the graphene heating layer can generate far infrared radiation for heating, and is healthier when used for home heating. In addition, the rolled electrode can well contact the silver paste layer, stable conduction is guaranteed, the arrangement is simple, and the operation is reliable and stable.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment.

Fig. 2 is a perspective sectional view of the embodiment.

Fig. 3 is an exploded view of the embodiment.

FIG. 4 is a schematic view of the back surface of the heat-generating body in FIG. 3.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1, fig. 2 and fig. 3, the graphene heating tube in this embodiment includes a quartz tube 1, a guard ring 2, a heating element 3, an electrode 4 and a connection terminal 5, the quartz tube 1 has a closed inner cavity, and the inner cavity is filled with inert gas or nitrogen, or is vacuum, and can resist a temperature of 1000 ℃ for a long time.

The two guard rings 2 are respectively arranged at two ends of the quartz tube 1, and the guard rings 2 can be made of ceramic materials;

the heating element 3 is arranged in the quartz tube 1, and as shown in fig. 3 and 4, the heating element 3 comprises a fiber cloth 31, a graphene heating layer 32 and a silver paste layer 33, the graphene heating layer 32 is formed in the surface of the fiber cloth 31, and the silver paste layer 33 is formed at two ends of the fiber cloth 31; the fiber cloth 31 in this embodiment may be made of quartz fiber or glass fiber. The graphene heating layer 32 is grown on the fiber cloth by a chemical vapor deposition process, and can be heated in a far infrared radiation mode of 5-18 micrometers.

Two electrodes 4 are respectively arranged on the silver paste layer 33, and each electrode 4 is in a coil shape and has elasticity and is tightly contacted with the silver paste layer 33 by using the elasticity; the heating element 3 is arranged on the bottom surface of the quartz tube 1, as shown in fig. 3, the upper end of the electrode 4 is pressed against the inner wall of the top of the quartz tube 1, the lower end presses the electrode 4 against the inner wall of the bottom of the quartz tube 1, and the electrode 4 is specifically rolled into an inverted e-shaped structure by a sheet-shaped body.

Two connecting terminals 5 are provided, one end of each connecting terminal 5 is connected with the respective electrode 4, and the other end extends out of the guard ring 2 to form a plug-in end.

The quartz tube 1 in this embodiment is flat, and the quartz tube 1 is assembled so that the width direction thereof coincides with the width direction of the heating element 3.

The graphene heating tube manufacturing process in the embodiment is as follows: specially customizing a flat tube quartz tube mold of a flat tube type and a hot extrusion production line; growing the graphene in different directions on the fiber cloth by a chemical vapor deposition process to form a graphene heating layer; selecting fiber cloth with a certain length and width and formed with a graphene heating layer, printing silver paste layers at two ends, and curing by a vacuum baking process; specially designed roll-shaped electrodes are respectively pressed on the silver paste layers at the two ends and then plugged into the quartz tube, and the two ends of the quartz tube are respectively subjected to vacuum packaging treatment.

Claims

1. A graphene heating pipe is characterized by comprising

The quartz tube (1) is provided with a closed inner cavity, and inert gas or nitrogen is filled in the inner cavity or the inner cavity is vacuum;

two guard rings (2) respectively arranged at two ends of the quartz tube (1);

the heating body (3) is arranged in the quartz tube (1), the heating body (3) comprises a fiber cloth (31), a graphene heating layer (32) and a silver paste layer (33), the graphene heating layer (32) is formed in the surface of the fiber cloth (31), and the silver paste layer (33) is formed at two ends of the fiber cloth (31);

two electrodes (4) respectively arranged on the silver paste layer (33), wherein each electrode (4) is in a roll shape and has elasticity and is tightly contacted with the silver paste layer (33) by using the elasticity; and

and two connecting terminals (5), wherein one end of each connecting terminal (5) is connected with the respective electrode (4), and the other end of each connecting terminal extends out of the guard ring (2) to form a plug-in end.

2. The heating tube according to claim 1, wherein the quartz tube (1) is flat, and the width direction of the quartz tube (1) is aligned with the width direction of the heating element (3).

3. The graphene heating tube according to claim 1, wherein the heating element (3) is disposed on the bottom surface of the quartz tube (1), the upper end of the electrode (4) abuts against the inner wall of the top of the quartz tube (1), and the lower end of the electrode (4) presses the inner wall of the bottom of the quartz tube (1).

4. The graphene heating tube of claim 1, wherein the electrode is rolled from a sheet-like body into an inverted "e" shaped structure.