CN218941358U

CN218941358U - Novel conductive lead structure on heating resistance wire

Info

Publication number: CN218941358U
Application number: CN202222914931.5U
Authority: CN
Inventors: 罗炜登
Original assignee: Weide Foshan Thermal Energy Technology Co ltd
Current assignee: Weide Foshan Thermal Energy Technology Co ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-04-28
Anticipated expiration: 2032-11-03

Abstract

The utility model discloses a novel conductive lead structure on a heating resistance wire, which comprises a conductive lead electrically connected with the heating resistance wire, wherein the conductive lead is a single-strand lead, a small conductive spring structure is arranged on the conductive lead, the small spring structure comprises a front connecting part and a rear connecting part, the two ends of which are respectively wound and fixed on the conductive lead, and a spring part which is arranged between the front connecting part and the rear connecting part and is wound and connected on the conductive lead, the front connecting part and the rear connecting part are fixed on the conductive lead through dense winding, and the spring part is connected with the conductive lead through tape pitch winding. According to the utility model, the small spring structure is arranged on the single-strand conductive lead, so that the resistance on the conductive lead can be reduced, the heating on the conductive lead is reduced, the double-strand twist parallel connection mode which is difficult to bend or the welding process parallel connection mode which is easy to brittle fracture can be avoided, and the strength of the conductive lead can be increased through the combination of the small spring structure and the conductive lead, so that the bending strength of the conductive lead is further enhanced.

Description

Novel conductive lead structure on heating resistance wire

Technical Field

The utility model relates to the technical field of high-resistance electrothermal alloy heating elements, which can be applied to semiconductor and photovoltaic diffusion furnaces or various heating elements, in particular to a novel conductive lead structure on a heating resistance wire.

Background

Diffusion furnaces are used in diffusion, oxidation, annealing, alloying, sintering, and other processes in the industries of large-scale integrated circuits, discrete devices, power electronics, optoelectronic devices, optical fibers, and the like. The main purpose of the diffusion process is to dope the semiconductor wafer at high temperature, i.e. to diffuse elemental phosphorus and boron into the wafer, thereby changing and controlling the type, concentration and distribution of impurities in the semiconductor so as to establish different electrical characteristic regions.

Heating element that uses in photovoltaic diffusion furnace, the part that generates heat generally uses the heating resistance wire to turn on electricity and generates heat, and the conducting wire electricity that needs to be connected with the heating resistance wire when the heating resistance wire is circular telegram is connected in the circuit, and the conducting wire needs to walk the line in the diffusion furnace, and current conducting wire structure generally falls into 4 kinds: (1) single strand straight out; (2) the double twist is straightened out; (3) double-strand side-by-side welding; and (4) welding a guide rod.

(1) Single strand straight out:

the advantages are that: the conductive leads are easy to bend in the later stage, and cannot be bent;

disadvantages: the resistance of the single-strand straight conductive lead is high, and the heating element can generate heat excessively when being electrified, so that the conductive lead is damaged.

(2) Double-stranded twist straight out:

the advantages are that: the resistance of the conductive leads connected in parallel by two strands is low, and the conductive leads are not damaged due to excessive heating of the heating element when the heating element is electrified;

disadvantages: the strength of the two conductive leads after the twist-shaped combination is high, so that the later-stage forming and bending difficulty of the conductive leads is high, and the conductive leads are easy to break in the bending process.

(3) Double-strand side-by-side welding and (4) welding of the guide rod:

disadvantages: the materials at the welding position are easy to be brittle broken and cannot be bent and molded.

Disclosure of Invention

In view of this, the present utility model aims to provide a novel conductive lead structure on a heating resistor wire, which avoids the use of a welding process and satisfies the requirement that the subsequent bending and forming is not easy to generate bending and breaking.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a novel conductive lead structure on heating resistance wire, include with the conductive lead that heating resistance wire both ends electricity is connected, conductive lead is single strand lead be provided with the little spring structure that can electrically conduct on the conductive lead, little spring structure includes that both ends are twined respectively and are fixed preceding connecting portion and back connecting portion on the conductive lead and setting up the winding between preceding connecting portion and the back connecting portion is connected spring portion on the conductive lead, preceding connecting portion are fixed through intensive winding with back connecting portion on the conductive lead, spring portion pass through the area apart from winding with conductive lead is connected.

Preferably, the front connection portion and the rear connection portion are densely wound so as to be closely attached to each other between the adjacent conductive lead coils.

Further, the conductive lead coil densely wound on the front and rear connection parts is provided in 5 turns.

Preferably, the front connecting part and the rear connecting part are tightly fixed on the conductive lead after being wound on the conductive lead.

Preferably, the tape pitch of the spring portion is wound such that a gap between adjacent ones of the conductive lead coils is greater than 0.

Preferably, the wire diameter of the small spring structure is smaller than the wire diameter of the conductive lead.

Preferably, the conductive lead is the same material as a small spring structure, and the small spring structure is connected in parallel to the conductive lead.

Further, the conductive leads and small spring structures are the same material as the heating resistance wire.

The technical effects of the utility model are mainly as follows: the small spring structure is arranged on the single-strand conductive lead, so that the resistance on the conductive lead can be reduced, the heating on the conductive lead is reduced, the double-strand twist parallel mode which is difficult to bend or the welding process parallel mode which is easy to brittle fracture can be avoided, and the strength of the conductive lead can be increased through the combination of the small spring structure and the conductive lead, so that the bending strength of the conductive lead is further enhanced.

Drawings

FIG. 1 is a simplified schematic diagram of the overall structure of the present utility model.

1-heating a resistance wire; 2-conductive leads; 3-small spring structure; 31-front connection; 32-a rear connection; 33-spring part.

Description of the embodiments

The following detailed description of the utility model is provided in connection with the accompanying drawings to facilitate understanding and grasping of the technical scheme of the utility model.

Examples

According to the novel conductive lead structure on the heating resistance wire shown in fig. 1, the novel conductive lead structure comprises conductive leads 2 electrically connected with two ends of the heating resistance wire 1, wherein the conductive leads 2 are single leads, namely single leads, small conductive spring structures 3 which can be electrically conductive are arranged on the conductive leads 2, the conductive leads 2 and the small spring structures 3 can be the same in material, the small spring structures 3 are connected on the conductive leads 2 in parallel, the small spring structures 3 comprise front connecting parts 31 and rear connecting parts 32 which are respectively wound and fixed on the conductive leads 2 at two ends and spring parts 33 which are arranged between the front connecting parts 31 and the rear connecting parts 32 and are wound and connected on the conductive leads 2, the front connecting parts 31 are generally arranged at one end close to the heating resistance wire 1, the rear connecting parts 32 are generally arranged at one end far away from the heating resistance wire 1, the front connecting parts 31 and the rear connecting parts 32 are tightly wound and fixed on the conductive leads 2 through dense windings, the front connecting parts 31 and the rear connecting parts 32 are tightly wound and fixed on the conductive leads 2 through dense windings, the front connecting parts 31 and the rear connecting parts 2 are tightly wound and connected with the conductive leads 2 through the dense windings 2, and the rear connecting parts are tightly wound and connected with the conductive leads 2 are tightly wound and connected with the front connecting parts 2 and the rear connecting parts 2 through the dense windings and the connecting parts and the conductive leads 2; the spring portion 33 is connected to the conductive lead 2 by tape pitch winding; the strip distance of the spring part 33 is wound so that the gap between the adjacent conductive lead 2 coils is larger than 0, for example, the wire diameter of the small spring structure 3 is 1.2mm, and the gap between the adjacent conductive lead 2 coils of the spring part 33 is 10-25mm.

The front connecting part 31 and the rear connecting part 32 of the small spring structure 3 can be fixedly connected with the conductive lead 2, displacement of the small spring structure 3 is avoided, the spring part 33 has a certain spring force, folding and bending strength of the conductive lead 2 can be increased, and breakage of the conductive lead 2 is avoided.

The conductive lead 2 is not involved in heating of a heating element, and is connected to the conductive lead 2 in parallel through the small spring structure 3, so that the resistance of a lead part can be reduced, the conductivity is increased, the heat dissipation area of the lead part can be enlarged, the heat generation of the conductive lead 2 can be reduced by combining the small spring structure 3 and the conductive lead, the damage of the conductive lead 2 caused by excessive heat generation is avoided, and the energy consumption can be reduced.

Examples

The difference from example 1 is that: in order to enable the small spring structure 3 to be easily wound on the conductive lead 2, the small spring structure 3 has a smaller wire diameter than the conductive lead 2.

Examples

The difference from example 1 is that: in order to make the conductive lead wire 2 and the small spring structure 3 have improved heat conduction and heat dissipation so as to be not easy to damage, the conductive lead wire 2 and the small spring structure 3 are made of the same material as the heating resistance wire 1.

Working principle:

the conductive lead 2 led out from the heating resistance wire 1 is used as a core rod, one end close to the heating resistance wire 1 is twisted through machine equipment, the forefront end of a coil of the small spring structure 3 is pressed on the conductive lead 2 before winding, a front connecting part 31 of the small spring structure 3 is formed after the dense winding of the twisted wires, a spring part 33 is formed continuously through the tape pitch winding of the twisted wires, then a rear connecting part 32 is formed through the dense winding of the twisted wires, the forefront end of the coil of the small spring structure 3 is pressed on the conductive lead 2, and finally the machine can tightly attach the conductive lead 2 and the small spring device together in a compaction pressing or rotating mode.

Claims

1. The utility model provides a novel conductive lead structure on heating resistance wire, include with the conductive lead that heating resistance wire both ends electricity is connected, its characterized in that: the conductive lead is a single-strand lead, a small conductive spring structure is arranged on the conductive lead, the small spring structure comprises a front connecting part and a rear connecting part, the two ends of the front connecting part and the rear connecting part are respectively wound and fixed on the conductive lead, the front connecting part and the rear connecting part are wound and connected with a spring part on the conductive lead, the front connecting part and the rear connecting part are fixed on the conductive lead through dense winding, and the spring part is connected with the conductive lead through tape pitch winding.

2. A novel conductive lead structure on a heating resistor wire as claimed in claim 1, wherein: the front connecting part and the rear connecting part are closely wound to be adjacent to each other between the conductive lead coils.

3. A novel conductive lead structure on a heating resistor wire as claimed in claim 2, wherein: the conductive lead coil densely wound on the front and rear connection parts is set to 5 turns.

4. A novel conductive lead structure on a heating resistor wire according to any one of claims 1-3, wherein: the front connecting part and the rear connecting part are wound on the conductive lead and then pressed and fixed on the conductive lead.

5. A novel conductive lead structure on a heating resistor wire as claimed in claim 1, wherein: the strip distance of the spring portion is wound such that a gap between adjacent ones of the conductive lead coils is greater than 0.

6. A novel conductive lead structure on a heating resistor wire as claimed in claim 1, wherein: the wire diameter of the small spring structure is smaller than that of the conductive lead.

7. A novel conductive lead structure on a heating resistor wire as claimed in claim 1, wherein: the conductive lead is the same as the small spring structure in material, and the small spring structure is connected in parallel with the conductive lead.

8. The novel conductive lead structure on a heating resistor wire of claim 7, wherein: the conductive leads and the small spring structure are the same as the material of the heating resistance wire.