A platinum wire wound high temperature heating element
By using a high-temperature heating element design with platinum wire winding, the problems of oxidation, short lifespan, and poor temperature control of traditional heating elements in high-temperature environments are solved, achieving efficient heating and good temperature control performance, which is suitable for instruments such as microscopes and XRD.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN CHONGGUANG TECH CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-05
AI Technical Summary
Traditional heating elements are prone to oxidation at high temperatures, have short lifespans, low heating efficiency, poor temperature control, simple structures, and low heat retention. They also have shortcomings in terms of structural optimization, cost control, and equipment compatibility.
The high-temperature heating element, which is designed with platinum wire winding, includes a heater mounting plate, a ceramic cup, an external shield, a ceramic partition, and a thermocouple ceramic tube, forming a PID temperature control loop. Combined with a ceramic plate for sample placement and testing, it has a compact structure and is suitable for instruments such as microscopes and XRD.
It achieves long-term use at temperatures above 1400℃, has excellent temperature control and insulation performance, is suitable for a variety of high-temperature heating equipment, and improves heating efficiency and equipment compatibility.
Smart Images
Figure CN224329603U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of high-temperature heating bodies wound with platinum wire, specifically a high-temperature heating body wound with platinum wire. Background Technology
[0002] In aerospace, metallurgy, and materials heat treatment fields, there is an urgent need for high-temperature heating equipment. Traditional heating elements suffer from problems such as easy oxidation, short lifespan, and low heating efficiency in high-temperature environments. Platinum has a high melting point, good oxidation resistance, and high-temperature stability. By making platinum wire into a wound heating element, the heating area can be effectively increased, and the heating uniformity and efficiency can be improved. However, the current high-temperature heating elements have poor temperature control, simple structure, and low heat preservation. Improvements are still needed in terms of structural optimization, cost control, and compatibility with supporting equipment. Utility Model Content
[0003] The purpose of this invention is to provide a high-temperature heating element wound with platinum wire to solve the existing problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature heating body with platinum wire winding, comprising a heater mounting plate and a ceramic cup. An external shield is mounted on the heater mounting plate, and four sets of arc-shaped holes are provided on the outer side of the external shield. Four sets of bottom ceramic tubes are provided on the outer side of the ceramic cup. A ceramic partition is provided inside the ceramic cup. A thermocouple ceramic tube is provided in the middle of the ceramic partition. A ceramic heating body is sleeved on the outer side of the thermocouple ceramic tube. Platinum wire is densely wound inside the ceramic heating body. The ceramic heating body is located above the ceramic partition. A ceramic plate is provided on the top of the ceramic cup. All four sets of bottom ceramic tubes on the ceramic cup extend through the arc-shaped holes to the top of the ceramic heating body.
[0005] Preferably, a circular hole is provided at the center of the heater mounting plate, and multiple sets of through holes are evenly provided at the non-center parts of the heater mounting plate for mounting ceramic cups.
[0006] Preferably, a connecting plate is installed on the bottom inner side of the outer shield, and the connecting plate has multiple sets of mounting holes. The connecting plate on the outer shield is connected to the heater mounting plate by screws, and the outer shield can achieve a good heat preservation effect.
[0007] Preferably, the bottom of the outer side of the ceramic cup has multiple sets of through holes evenly distributed, and the through holes are adapted to the bottom ceramic tube. The interior of the ceramic cup is divided into two spaces: the upper part is used for heating, and the lower part is used for heat insulation and lead wires.
[0008] Preferably, the ceramic partition has openings evenly distributed on its outer side to facilitate the passage of wire harnesses.
[0009] Preferably, a limiting ring is provided at the top edge of the ceramic cup, and the limiting ring is adapted to the ceramic piece, and the limiting ring is used to limit the ceramic piece.
[0010] Compared with the prior art, the advantages of this utility model are: the high-temperature heating element wound with platinum wire forms a PID temperature control circuit through the internal heating wire and thermocouple, which can achieve a good temperature control effect; the sample is placed on the top ceramic plate, which is convenient to combine with external instruments for optical and electrical testing; the high-temperature heating element can be used at temperatures above 1400℃ for a long time; the heater is small in size and compact in structure, and can be used to heat samples in instruments such as microscopes, XRD, and scanning electron microscopes. Attached Figure Description
[0011] Figure 1 This is a three-dimensional exploded view of the present invention;
[0012] Figure 2 This is a perspective view of the present invention in its combined state;
[0013] Figure 3 This is a schematic diagram of the ceramic heating element, ceramic partition, and thermocouple ceramic tube structure of this utility model.
[0014] In the diagram: 1. Ceramic heating element; 2. Ceramic plate; 3. Heater mounting plate; 4. Ceramic partition; 5. Ceramic cup; 6. External shielding cover; 7. Bottom ceramic tube; 8. Thermocouple ceramic tube. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] Please see Figure 1-3The present invention provides an embodiment of a high-temperature heating element wound with platinum wire, comprising a heater mounting plate 3 and a ceramic cup 5. An external shielding cover 6 is mounted on the heater mounting plate 3, and a connecting plate is mounted on the bottom inner side of the external shielding cover 6. The connecting plate has multiple sets of mounting holes. The connecting plate on the external shielding cover 6 is connected to the heater mounting plate 3 by screws. The external shielding cover 6 can achieve a good heat preservation effect. Four sets of arc-shaped holes are provided on the outer side of the external shielding cover 6. Four sets of bottom ceramic tubes 7 are provided on the outer side of the ceramic cup 5. A ceramic partition 4 is provided inside the ceramic cup 5. Openings are evenly provided on the outer side of the ceramic partition 4 to facilitate the passage of the wire harness. A thermocouple ceramic tube 8 is provided in the middle of the ceramic partition 4. A ceramic heating element 1 is sleeved on the outer side of the thermocouple ceramic tube 8, forming a PID temperature control circuit for controlling the temperature of the heating element.
[0017] The ceramic heating element 1 is densely wound with platinum wire inside, which can ensure sufficient heating power to reach the target temperature. The ceramic heating element 1 is located above the ceramic partition 4. The top of the ceramic cup 5 is provided with a ceramic plate 2. The four sets of bottom ceramic tubes 7 on the ceramic cup 5 all extend through the arc-shaped hole to the top of the ceramic heating element 1.
[0018] A circular hole is provided at the center of the heater mounting plate 3, and multiple sets of through holes are evenly arranged at the non-center parts of the heater mounting plate 3 for mounting the ceramic cup 5; multiple sets of through holes are evenly arranged at the bottom of the outer side of the ceramic cup 5, and the through holes are adapted to the bottom ceramic tube 7. The interior of the ceramic cup 5 is divided into two spaces, the upper part is used for heating, and the lower part is used for heat insulation and lead wires; a limiting ring is provided at the top edge of the ceramic cup 5, and the limiting ring is adapted to the ceramic plate 2. The limiting ring is used to limit the ceramic plate 2, and the ceramic plate 2 is installed through the bottom of the ceramic cup 5.
[0019] Working principle: In this high-temperature heating element, the ceramic partition 4 inside divides the interior of the ceramic cup 5 into two spaces, the upper space is used to place the ceramic heating element 1, and the lower space is used for heat insulation and internal wiring.
[0020] Its main heating components are a ceramic heating element 1 and a thermocouple ceramic tube 8. The entire high-temperature heating element is placed on the heater mounting plate 3, and heating wires and thermocouple wires are led out and connected to the outside through terminals.
[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0022] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
Claims
1. A high-temperature heating element wound with platinum wire, comprising a heater mounting plate (3) and a ceramic cup (5), characterized in that: An external shield (6) is installed on the heater mounting plate (3), and four sets of arc-shaped holes are provided on the outer side of the external shield (6); four sets of bottom ceramic tubes (7) are provided on the outer side of the ceramic cup (5); a ceramic partition (4) is provided inside the ceramic cup (5); a thermocouple ceramic tube (8) is provided in the middle of the ceramic partition (4); a ceramic heating element (1) is sleeved on the outer side of the thermocouple ceramic tube (8); a platinum wire is densely wound inside the ceramic heating element (1); the ceramic heating element (1) is located above the ceramic partition (4); a ceramic plate (2) is provided on the top of the ceramic cup (5); and the four sets of bottom ceramic tubes (7) on the ceramic cup (5) all extend through the arc-shaped holes to the top of the ceramic heating element (1).
2. The high-temperature heating element wound with platinum wire according to claim 1, characterized in that: A circular hole is provided at the center of the heater mounting plate (3), and multiple sets of through holes are provided on the heater mounting plate (3).
3. The high-temperature heating element wound with platinum wire according to claim 2, characterized in that: A connecting plate is installed on the bottom inner side of the outer shield (6), and multiple sets of mounting holes are opened inside the connecting plate. The connecting plate on the outer shield (6) is connected to the heater mounting plate (3) by screws.
4. The high-temperature heating element wound with platinum wire according to claim 1, characterized in that: The bottom of the ceramic cup (5) has multiple sets of through holes evenly distributed on the outside, and the through holes are adapted to the bottom ceramic tube (7).
5. A high-temperature heating element wound with platinum wire according to claim 1, characterized in that: The ceramic partition (4) has openings evenly distributed on its outer side.
6. The high-temperature heating element wound with platinum wire according to claim 1, characterized in that: A limiting ring is provided at the top edge of the ceramic cup (5), and the limiting ring is adapted to the ceramic piece (2).