CN215787314U

CN215787314U - Ceramic electric iron

Info

Publication number: CN215787314U
Application number: CN202122370725.8U
Authority: CN
Inventors: 雷彼得
Original assignee: Chongqing Le Mark Ceramic Technology Co Ltd
Current assignee: Chongqing Limai Technology Co ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-02-11
Anticipated expiration: 2031-09-29

Abstract

The application relates to the technical field of heated equipment, and discloses a ceramic electric iron, including soldering bit, handle, ceramic heat-generating body, anodal wire and negative pole wire, its characterized in that: the ceramic soldering iron is characterized by further comprising a lead and a ground wire, the negative electrode lead is connected to the soldering iron head, the positive electrode lead is connected to the ceramic heating body, the lead is connected to the negative electrode lead at the front end of the ceramic heating body, the lead is connected with a control detection center (capable of detecting grounding voltage and grounding resistance), and the ground wire is connected with the handle. The method has the advantages of determining whether the grounding voltage is less than 2mV and the grounding resistance is less than 2 omega.

Description

Ceramic electric iron

Technical Field

The utility model relates to the technical field of heating equipment, in particular to a ceramic electric soldering iron.

Background

At present, an electric soldering iron is an indispensable tool in the electrical appliance industry and electronic manufacturing and is used for soldering components and leads thereof, electrostatic discharge (ESD) is generated by charge transfer caused by mutual approaching or direct contact of objects with different electrostatic potentials in the using process, ESD can cause damage of internal equipment of the electric soldering iron, the service life is shortened, China is a processing base of electronic products, numerous electronic product processing enterprises are arranged all over the country, ESD control work of the enterprises mostly does not establish an ESD20.20 scheme according to American standards, the grounding voltage is required to be less than 2mV, and the grounding resistance is required to be less than 2 omega.

In the prior art, static electricity is prevented through a direct grounding wire of a shell or by adopting a ceramic heating element, for example, a patent with the application number of CN200520065808.4 discloses an AC/DC dual-purpose energy-saving anti-static constant-temperature silicon nitride electric iron which comprises a heating core, a welding nozzle, a stainless steel sleeve, a heat insulation ceramic tube, an inclined heat insulation ceramic tube and a handle, wherein the heating core adopts silicon nitride heating elements with different rated powers, is cylindrical, the front section of the heating core is inserted into the welding nozzle, and the rear section of the heating core is provided with 2 leading-out electrodes, so that the electrostatic protection of the heating element can not ensure that the grounding voltage is less than 2mV and the grounding resistance is less than 2 omega.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a ceramic electric soldering iron to determine whether grounding voltage of ESD is less than 2mV and grounding resistance is less than 2 omega.

In order to achieve the above object, the present invention adopts the following technical solutions.

The utility model provides a ceramic electric iron, includes soldering bit, handle, ceramic heat-generating body, anodal wire and negative pole wire, its characterized in that: the ceramic soldering iron is characterized by further comprising a lead and a ground wire, the negative electrode lead is connected to the soldering iron head, the positive electrode lead is connected to the ceramic heating body, the lead is connected to the negative electrode lead at the front end of the ceramic heating body, the lead is connected with a control detection center (capable of detecting grounding voltage and grounding resistance), and the ground wire is connected with the handle.

In order to lead out the lead and stably transmit current, the lead is connected to the negative lead at the front end of the ceramic heating element through a first crown spring, and the grounding voltage and the grounding resistance of the soldering iron are smaller as the connection point is closer to the soldering iron.

In order to lead out the negative electrode lead and stably transmit current, the middle part of the ceramic heating body is connected with a second crown spring, the negative electrode lead is led out through the second crown spring, and the negative electrode lead combines power supply and temperature measurement output.

In order to lead out the anode lead and stably transmit current, the third crown spring is connected to the tail end of the ceramic heating body and leads out the anode lead, and the anode lead is used for supplying power and measuring temperature.

In order to eliminate static electricity and simultaneously not interfere the handheld operation of technicians, the tail part of the handle is connected with the ground wire to be grounded.

In order to facilitate real-time temperature detection, the positive lead and the negative lead are made of thermocouple materials, and are led out from the handle and connected to a control center.

In order to control the temperature response speed and prolong the service life of the ceramic heating element, the ceramic heating element is a silicon nitride all-ceramic heating element.

Has the advantages that: the ceramic electric soldering iron provided by the utility model adopts a three-pole handle structure, ensures the composite functions of conductive heating, temperature control, static elimination and meeting the ESD requirements, is connected to a soldering iron head, detects whether the requirements of ESD standards on ensuring that the grounding voltage is less than 2mV and the grounding resistance is less than 2 omega by controlling a detection center, leads out a wire at the tail part of the handle to be grounded, is used for eliminating static electricity and detecting the state of the handle so as to realize actions such as automatic dormancy and the like, and effectively avoids the damage of components; the head is used for conducting heat to the soldering bit, the heating speed is high, the temperature control precision is high, the silicon carbide ceramic heating body is adopted, the size can be smaller, the welding of high-precision electronic components which cannot be carried out by a conventional electric soldering iron is met, meanwhile, the price is low, the temperature control is accurate, the temperature return is fast, and the service life is long.

Drawings

FIG. 1 is a schematic structural diagram of a ceramic electric soldering iron in the embodiment;

reference numerals: 1. a soldering bit; 2. a handle; 3. a ceramic heating element; 4. a positive electrode lead; 5. a negative electrode lead; 6. a wire; 7. a ground wire; 8. a first crown spring; 9. a second crown spring; 10. and a third crown spring.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the following embodiments are only used for understanding the principle of the present invention and the core idea thereof, and do not limit the scope of the present invention. It should be noted that modifications to the utility model as described herein, which do not depart from the principles of the utility model, are intended to be within the scope of the claims which follow.

Examples

As shown in fig. 1, a ceramic electric soldering iron comprises a soldering bit 1, a handle 2, a ceramic heating element 3, an anode wire 4, a cathode wire 5, a wire 6 and a ground wire 7, wherein the front end of the ceramic heating element 3 is connected with the soldering bit 1, the handle 2 wraps the ceramic heating element 3 and the soldering bit 1, the soldering bit 1 penetrates out from the front end of the handle 2, the cathode wire 5 is connected with the soldering bit 1, the cathode wire 5 is led out from the middle of the ceramic heating element 3, the cathode wire 5 and the anode wire 4 form a loop in the ceramic heating element 3 and heat the ceramic heating element 3, the wire 6 is led out from the cathode wire 5 at the front end of the ceramic heating element 3, the wire 6 is connected with a control detection center to detect ground voltage and ground resistance, and the connection point is closer to the soldering bit 1, the induced voltage is lower, the grounding voltage and the grounding resistance are smaller, the grounding voltage with the measured value meeting the ESD requirement is less than 2mV and the grounding resistance is less than 2 omega, the lead 6 is connected to the negative lead 5 at the front end of the ceramic heating body 3, and the grounding wire 7 is connected with the handle 2.

The lead 6 is connected to the negative lead 5 at the front end of the ceramic heating element 3 through a first crown spring 8, and can transmit a large current, and has good connection stability and stable current transmission.

The middle part of the ceramic heating body 3 is connected with a second crown spring 9, the negative electrode lead 5 is led out through the second crown spring 9, and the negative electrode lead 5 integrates power supply and temperature measurement output.

The third crown spring 10 is connected to the tail end of the ceramic heating body 3 and leads out the positive lead 4, and the positive lead 4 is used for supplying power and measuring temperature.

The tail part of the handle 2 is connected with the ground wire 7 and is grounded for eliminating static electricity.

The positive lead 4 and the negative lead 5 are made of thermocouple materials, and temperature is measured by utilizing the characteristics that temperature difference reaction electromotive force generated among different materials and the thermoelectromotive force of the materials change along with the temperature difference.

The ceramic heating body 3 adopts a silicon nitride all-ceramic heating body, the size is smaller than that of the traditional heating body, the temperature control response speed is improved, and the service life of the ceramic heating body 3 is prolonged.

Claims

1. The utility model provides a ceramic electric iron, includes soldering iron (1), handle (2), ceramic heat-generating body (3), anodal wire (4) and negative pole wire (5), its characterized in that: still include wire (6) and ground wire (7), negative pole wire (5) are connected on soldering iron (1), anodal wire (4) are connected on ceramic heating body (3), wire (6) are connected ceramic heating body (3) front end on negative pole wire (5), wire (6) connection control detection center again, ground wire (7) are connected with handle (2).

2. The ceramic electric soldering iron as set forth in claim 1, wherein: the lead (6) is connected to the negative lead (5) at the front end of the ceramic heating body (3) through a first crown spring (8).

3. A ceramic electric soldering iron as claimed in claim 1 or claim 2, wherein: the middle part of the ceramic heating body (3) is connected with a second crown spring (9), and a negative lead (5) is led out through the second crown spring (9).

4. A ceramic electric soldering iron as claimed in claim 3, wherein: the third crown spring (10) is connected to the tail end of the ceramic heating body (3), and the anode lead (4) is led out through the third crown spring (10).

5. The ceramic electric soldering iron as claimed in claim 4, wherein: the lead (6) is connected with the ground wire (7) at the tail part of the handle (2).

6. A ceramic electric soldering iron as claimed in claim 5, wherein: the positive lead (4) and the negative lead (5) are made of thermocouple materials.

7. The ceramic electric soldering iron as claimed in claim 6, wherein: the ceramic heating body (3) adopts a silicon nitride all-ceramic heating body.