CN219503899U

CN219503899U - AC electric iron

Info

Publication number: CN219503899U
Application number: CN202320261022.8U
Authority: CN
Inventors: 许秋宁
Original assignee: Nanjing Jingfeng Electromechanical Technology Co ltd; Nanjing Tangfeng Mechanical & Electrical Co ltd
Current assignee: Nanjing Jingfeng Electromechanical Technology Co ltd; Nanjing Tangfeng Mechanical & Electrical Co ltd
Priority date: 2023-02-20
Filing date: 2023-02-20
Publication date: 2023-08-11
Anticipated expiration: 2033-02-20

Abstract

The utility model discloses an alternating current soldering iron, which comprises a main body part and a soldering iron head, wherein the soldering iron head is connected to the front end of the main body part, the rear end of the main body part is connected with a power line, the power line comprises a grounding power line, the soldering iron head comprises a heating core and a metal element, the grounding power line is connected with the metal element through a grounding spring, the grounding spring extends from the inside of the main body part into the soldering iron head and comprises a first spring part and a second spring part which are mutually connected, and the second spring part is a tower-shaped spring. The grounding scheme of the alternating current soldering iron suitable for the modularized design is provided, the safety protection function of the alternating current soldering iron is realized, and the stability of the installation position of internal parts can be improved.

Description

AC electric iron

Technical Field

The utility model relates to the field of electric tools, in particular to an alternating current soldering iron.

Background

The electric iron is a necessary tool for electronic manufacture and electric appliance maintenance, and is mainly used for welding elements and wires. According to different power supply modes, the electric soldering iron can be divided into a direct-current soldering iron and an alternating-current soldering iron. For the traditional alternating current soldering iron, the heating tube extends out of the main shell, namely one end of the heating tube is positioned in the main shell, and then the heating tube is not far away from a power line at the tail part of the main shell, so that the power ground line is usually extended to the heating tube in the grounding design and is connected to the heating tube in a spot welding mode.

However, as the product of the ac soldering iron evolves, more and more manufacturers integrate the heating tube into one soldering iron head, and the soldering iron head is mounted to the main housing as an independent module, so that the integrated design of such a module makes the product more convenient to mount and maintain on the one hand, and brings new problems on the other hand, that is, the distance between the heating tube and the power line becomes longer due to the forward movement of the heating tube, and the traditional grounding mode is not suitable for a new product structure any more, so that the ac soldering iron proposal provided by the utility model can effectively solve the problem.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model aims to provide an alternating current soldering iron, which solves the grounding problem caused by product evolution in the prior art and provides a novel grounding design scheme of the alternating current soldering iron suitable for modularized design.

In order to achieve the above object, the alternating current soldering iron of the present utility model comprises a main body portion and a soldering iron head portion, the soldering iron head portion is connected to the front end of the main body portion, the rear end of the main body portion is connected to a power cord, the power cord comprises a grounding power cord, the soldering iron head portion comprises a heating core and a metal element, the grounding power cord is connected with the metal element through a grounding spring, the grounding spring extends from the inside of the main body portion into the soldering iron head portion, and the alternating current soldering iron comprises a first spring portion and a second spring portion which are connected with each other, and the second spring portion is a tower-type spring.

In one embodiment, the first spring portion is located within the body portion and the second spring portion is located within the soldering iron head portion.

In one embodiment, the second spring portion includes a small diameter end and a large diameter end, the small diameter end facing the first spring portion.

In one embodiment, the first spring portion is connected to the large diameter end of the second spring portion by a spring wire.

In one embodiment, the second spring part is sleeved on the heating core.

In one embodiment, the heating core is in a stepped shaft shape and is provided with a shaft shoulder, and the small diameter end of the second spring part is abutted against the end face of the shaft shoulder.

In one embodiment, a stepped hole is formed in the metal member, the stepped hole having a hole shoulder, and the large diameter end of the second spring portion being abutted against an end face of the hole shoulder.

In one embodiment, the first spring portion is a cylindrical spring, and an end thereof remote from the second spring portion is connected to a ground power line.

The beneficial effects are that:

the utility model provides a novel grounding design scheme which can be suitable for a novel alternating current soldering iron structure after product evolution, and the scheme adopts a grounding spring with special-shaped design, so that the connection between a metal element positioned at the front end of a main body part of the electric soldering iron and a grounding power line positioned at the rear end of the main body part is realized, and the electric soldering iron has a safety grounding function of electric leakage protection; in addition, the special-shaped grounding spring can effectively prevent the heating core from moving towards the main body part, so that the positions of parts in the electric soldering iron are more stable.

Drawings

The utility model is further described and illustrated below with reference to the accompanying drawings.

Fig. 1 is a schematic view of an ac soldering iron according to a preferred embodiment of the present utility model.

Fig. 2 is a schematic view showing an internal structure of a main body portion of the ac soldering iron of fig. 1.

Fig. 3 is a schematic view of another internal structure of the ac soldering iron of fig. 1.

Fig. 4 is a cross-sectional view of the ac soldering iron of fig. 1.

Fig. 5 is a schematic view of a grounding spring of the ac soldering iron of fig. 1.

Reference numerals:

100. an alternating current soldering iron; 1. a main body portion; 2. a soldering iron head; 3. a power line; 4. a grounding spring; 11. a handle; 12. a switch key; 13. positioning ribs; 21. a heating core; 22. welding head; 23. a metal element; 24. a screw sleeve; 25. a housing; 30. a ground power line; 41. a first spring portion; 42. a second spring portion; 43. an intermediate connection portion; 210. a shaft shoulder; 230. hole shoulders; 421. a small diameter end; 422. and a large diameter end.

Detailed Description

The technical solution of the present utility model will be more clearly and completely explained by the description of the preferred embodiments of the present utility model with reference to the accompanying drawings.

The utility model provides an alternating current soldering iron, which comprises a main body part and a soldering iron head, wherein the soldering iron head is connected to the front end of the main body part, the rear end of the main body part is connected with a power line, the power line comprises a grounding power line, the soldering iron head comprises a heating core and a metal element, the grounding power line is connected with the metal element through a grounding spring, the grounding spring extends from the inside of the main body part into the soldering iron head and comprises a first spring part and a second spring part which are mutually connected, and the second spring part is a tower-shaped spring.

According to the technical scheme of the alternating current soldering iron disclosed by the utility model, the grounding spring is used for grounding connection, the grounding spring adopts a special-shaped design and comprises two mutually connected spring parts, wherein the mutually connected spring parts are connected together in a welding mode and the like, and the two spring parts are integrally formed. The technical scheme has the advantages that: the grounding spring has an overall length sufficient to connect the metal member at the front end of the main body portion to the power ground line at the rear end of the main body portion, on the one hand, and the second spring portion having a tower shape is effective to prevent the metal member from moving toward the main body portion, on the other hand. Therefore, the alternating current soldering iron not only solves the problem of grounding connection caused by product evolution in the prior art, but also has the unexpected beneficial effect of effectively fixing parts.

As shown in the preferred embodiment of fig. 1 to 5, the ac soldering iron 100 includes a body portion 1 and a soldering iron head 2. The soldering iron head 2 is connected to the front end of the body portion 1, and the rear end of the body portion 1 is connected to the power cord 3, and the power cord 3 includes a ground power cord 30. The housing of the body part 1 forms a handle 11 for the user to hold, and switch keys 12 are provided on the housing.

The soldering iron head 2 is provided as a separate module comprising a heat generating core 21, a soldering tip 22, a metal element 23, a screw insert 24, and a housing 25. Wherein, the tail end of the heating core 21 is connected with the power line 3, and when the power is turned on, the heating core 21 generates heat; the welding head 22 is arranged at the front end of the heating core 21; the metal element 23 is sleeved on the periphery of the heating core 21; the cover shell 25 is connected with the metal element 23 through threads and sleeved on the periphery of part of the metal element 23 and the welding head 22, so as to play a role in heat insulation and protection; the threaded sleeve 24 is connected to the metal element 23 or both are of unitary construction. The inner surface of the screw sleeve 24 is provided with screw threads for being engaged with the external screw threads of the front end of the body portion 1, thereby connecting the soldering iron head 2 to the body portion 1.

As shown in fig. 2 to 5, in order to solve the grounding problem of the ac soldering iron, the present utility model adopts a grounding spring 4 with a special-shaped design, as an intermediate connecting piece between the metal element 23 and the grounding power line 30, one end of which is connected with the grounding power line 30, and the other end of which is connected with the metal element 23, thereby achieving the purpose of grounding, so as to avoid the safety problem of the ac soldering iron caused by insulation damage or electric leakage due to other reasons.

The grounding spring 4 comprises a first spring portion 41 and a second spring portion 42 which are connected with each other, and the two spring portions are connected through an intermediate connecting portion 43, preferably, the intermediate connecting portion 43 is a spring steel wire, the spring steel wire is wound to form the first spring portion 41, then the first spring portion 41 is formed in a linear direction in an extending mode, and the second spring portion 42 is formed in a winding mode, so that the integrated grounding spring 4 is formed. Of course, the grounding spring 4 may be wound by winding the second spring portion 42 first and then winding the first spring portion 41.

Preferably, the first spring portion 41 is a cylindrical spring and the second spring portion 42 is a tower spring. The second spring portion 42 includes a small diameter end 421 and a large diameter end 422, wherein the small diameter end 421 faces the first spring portion 41, and the large diameter end 422 is away from the first spring portion 41. One end of the intermediate connection portion 43 is connected to the first spring portion 41, and the other end is connected to the large diameter end 422.

The first spring portion 41 is mounted in the main body portion 1. Specifically, the positioning ribs 13 are formed on the inner wall of the main body portion 1, and the gaps of the first spring portions 41 are engaged with the positioning ribs 13, thereby being fixedly installed in the main body portion 1. One end of the first spring portion 41 extends to be connected to the ground power cord 30, and the other end is connected to the intermediate connection portion 43. The intermediate connection 43 extends from within the body portion 1 into the soldering iron head 2.

The second spring portion 42 is mounted in the soldering iron head 2. Specifically, the second spring portion 42 is sleeved on the heating core 21, the heating core 21 is in a stepped shaft shape, and has a shaft shoulder 210, the small diameter end 421 of the second spring portion 42 is located at the shaft shoulder 210, specifically, the small diameter end 421 slightly exceeds the shaft shoulder 210, and since the diameter of the small diameter end 421 is smaller than the outer diameter of the shaft shoulder 210, a spring ring of the small diameter end 421 abuts against an end face of the shaft shoulder 210.

The metal element 23 has a stepped hole formed therein, and has a hole shoulder 230, and the large diameter end 422 of the second spring portion 42 abuts against an end surface of the hole shoulder 230.

The above structural design allows the second spring portion 42 to be positioned within the soldering iron head 2. In the assembled state, the grounding spring 4 is in a slightly compressed state, and thus the position of the entire grounding spring 4 is fixed. In addition, since the small diameter end 421 of the second spring portion 42 abuts on the end surface of the shoulder 210 of the heat generating core 21, the second spring portion 42 can prevent rearward displacement (i.e., toward the main body portion 1) of the heat generating core 21 that may occur during long-term operation, thereby making the positioning of the parts of the electric soldering iron more stable.

The above detailed description is merely illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model. Various modifications, substitutions and improvements of the technical scheme of the present utility model will be apparent to those skilled in the art from the description and drawings provided herein without departing from the spirit and scope of the utility model. The scope of the utility model is defined by the claims.

Claims

1. The utility model provides an alternating current electric iron, includes main part and flatiron head, the flatiron head connect in the front end of main part, the power cord is connected to the rear end of main part, the power cord includes ground connection power cord, the flatiron head includes core and metal element generate heat, its characterized in that, ground connection power cord pass through grounding spring with metal element connects, grounding spring follows in the main part extend to in the flatiron head, and including interconnect's first spring portion and second spring portion, the second spring portion is tower spring.

2. The ac electric iron of claim 1, wherein said first spring portion is located within said body portion and said second spring portion is located within said iron head portion.

3. The ac electric iron of claim 2, wherein the second spring portion includes a small diameter end and a large diameter end, the small diameter end facing the first spring portion.

4. The ac electric iron as claimed in claim 3, wherein the first spring portion is connected to the large diameter end of the second spring portion by a spring wire.

5. The ac electric iron of claim 4, wherein said second spring portion is sleeved on said heat generating core.

6. The ac soldering iron of claim 5, wherein the heat generating core is in the shape of a stepped shaft and has a shoulder, and the small diameter end of the second spring portion abuts against an end surface of the shoulder.

7. The ac soldering iron of claim 6, wherein a stepped hole is formed in the metal member, the stepped hole having a hole shoulder, the large diameter end of the second spring portion abutting against an end face of the hole shoulder.

8. The ac electric iron according to any one of claims 1 to 7, wherein the first spring portion is a cylindrical spring, and an end thereof remote from the second spring portion is connected to the ground power cord.