Electric iron and soldering device

An electric iron (1) includes a housing (11) and a handle (12) connected to the housing (11). The electric iron (1) further includes an exhaust hole (15) or a second exhaust pipe (18) disposed on the housing (11) and a first exhaust pipe (16) or a third exhaust pipe (19) disposed on the handle (12). A soldering device includes an air extractor (2) and the electric iron (1) as described above.

CROSS REFERENCE TO RELATED APPLICATIONS

The present application claims priority to Chinese Patent Application No. 201720325343.4 as filed on Mar. 30, 2017, the disclosure of which is incorporated herein in its entirety by reference.

TECHNICAL FIELD

The disclosure relates to an electric iron and a soldering device.

BACKGROUND

An electric iron is an indispensable tool for electronic manufacture and electrical maintenance, and its main usage is to solder elements and components and wires. It is an essential device in the process of circuit reconstruction. The electric iron will produce smog in the soldering process, in which, the main components of rosin in a solder tin wire are abietic acid anhydride, p-Coumaric Acid and resin hydrocarbons, and when the temperature reaches 250 degrees, a part of the oxides can be decomposed into carbon dioxide, sulfur dioxide, acetaldehyde, rosin acid, isocyanate, hydrocarbons, and the like. The smog has toxicity, and will seriously endanger people's health.

SUMMARY

The present disclosure provides an electric iron, including a housing and a handle connected to the housing, wherein the electric iron further includes a first gas conveying device disposed on the housing and a second gas conveying device disposed on the handle;

a first end of the first gas conveying device is connected to the second gas conveying device, smog produced during soldering is sucked in with aid of negative pressure at a second end of the first gas conveying device, and the smog is discharged by the second gas conveying device, the second end being an end far away from the first end.

Preferably, the housing and the handle are in the shape of a cylinder, and the electric iron further includes a cylinder-shaped iron core, a bottom of which is accommodated within the housing, and a head of which protrudes from the housing.

Preferably, the first gas conveying device is an exhaust hole, and the exhaust hole is arranged within a sidewall of the housing, and runs through the sidewall of the housing along an axial direction of the housing.

Preferably, the second gas conveying device is a first exhaust pipe, and is disposed inside the handle.

Preferably, the first exhaust pipe includes a first exhaust manifold and first exhaust branch pipes, the number of the first exhaust branch pipes is the same as the number of exhaust holes, and an end of each of the first exhaust branch pipes is connected to a corresponding exhaust hole, another end of each of the first exhaust branch pipes is connected to the first exhaust manifold, the first exhaust manifold extending to outside of the handle.

Preferably, the first exhaust manifold and the first exhaust branch pipes are hoses, and each of the first exhaust branch pipes plugs in a corresponding exhaust hole.

Preferably, the handle and the sidewall of the housing are threaded-connected.

Preferably, there are multiple ones of the exhaust hole distributed uniformly around the periphery of the housing.

Preferably, the first gas conveying device is a second exhaust pipe, the second exhaust pipe is positioned on an outer side of the sidewall of the housing along an axial direction of the housing, and a length of the second exhaust pipe is equal to a length of the housing.

Preferably, the second gas conveying device is a third exhaust pipe, and the third exhaust pipe is positioned on an outer side of the handle along an axial direction of the handle.

Preferably, the third exhaust pipe includes a third exhaust manifold and third exhaust branch pipes, the number of the third exhaust branch pipes is the same as the number of the second exhaust pipe and one or more other second exhaust pipe, and an end of each of the third exhaust branch pipes is connected to a corresponding second exhaust pipe, and another end of each of the third exhaust branch pipes is connected to the third exhaust manifold.

Preferably, there are multiple ones of the second exhaust pipe distributed uniformly around a periphery of the housing.

Preferably, there are 2-8 second exhaust pipes.

Furthermore, the electric iron further includes a heat insulating layer, which is arranged between the iron core and the sidewall of the housing.

The present disclosure further provides a soldering device, including an air extractor and the electric iron as stated above, the air extractor being connected to an end of the second gas conveying device not connected to the first gas conveying device.

DETAILED DESCRIPTION

In order to make those skilled in the art better understand the technical solution of the present disclosure, hereinafter, the present disclosure will be further described in detail in conjunction with the accompanied drawings and specific embodiments.

The toxic smog produced during the soldering cannot be treated with an existing electric iron, and can only be brought to spread into the working space, and an air extractor is arranged within the working space. On the air extractor, there is provided a trumpet-shaped air suction device, and the smog in the working space is sucked in and discharged to the outside of the working space with the air suction device of the air extractor. However, the air extractor is situated at a farther distance from the electric iron, and the smog produced during the soldering will still spread into the air firstly, and then is discharged by the air extractor. Since the air extractors are usually distributed over everywhere within the working space, and it is very difficult to control the distance between them and the operator, and so, it is difficult to ensure the effect of discharging the smog everywhere within the working space. In addition, the operator holds the electric iron in his hand to carry on the soldering operation, and a part of the smog will still be directly inhaled by the operator, and thus the effect of discharging the smog is not good.

Therefore, an electric iron and a soldering device are urgently needed to solve the above problems.

Regarding the above defects which exist in the prior art, the present disclosure provides an electric iron and a soldering device, for partially solving the problem that the effect of discharging the smog produced during the soldering is not good.

With regard to the electric iron and the soldering device provided by the present disclosure, by providing the first gas conveying device on the housing of the electric iron and providing the second gas conveying device connected to the first gas conveying device on the handle, it is possible to utilize negative pressure within the first gas conveying device and the second gas conveying device to suck in the smog produced during soldering at an end of the first gas conveying device far away from the second gas conveying device, and to discharge the smog from the second gas conveying device. In this way, the smog produced during soldering is aspirated into the inside of the electric iron and is discharged from the working space before it spread into the air, and thus damage of the smog to the operator is decreased to the utmost extent. Furthermore, with the electric iron and the soldering device provided by the present disclosure, collection and treatment are carried on from the source of generating the smog, and an issue that the effect of discharging the smog varies from place to place within the working space can be solved.

In combination with those shown inFIG. 1andFIG. 2, the present disclosure provides an electric iron1that includes a housing11, a handle12and an iron core13, each of which is in the shape of a cylinder. The handle12is connected to the housing11, a bottom of the iron core13is accommodated within the housing11, and a head of the iron core13protrudes from the housing11. The electric iron1further includes a first gas conveying device disposed on the housing11and a second gas conveying device disposed on the handle12. The first gas conveying device includes a first end, which is connected to the second gas conveying device, and a second end, which is an end far away from the first end, namely, an end that is adjacent to the iron core13. At the second end of the first gas conveying device, the smog produced during soldering can be sucked in with aid of negative pressure, and the smog is discharged by the second gas conveying device.

In combination with those shown inFIG. 1andFIG. 2, the electric iron1further includes an iron head14. It is noted that, the electric iron1is classified into two types, i.e., an externally heated type and an internally heated type. The iron head of the externally heated type of the electric iron is installed inside the iron core, and the iron core of the internally heated type of the electric iron is installed inside the iron head. The present disclosure will be illustrated with the internally heated type of the electric iron as an example.

In combination of those shown inFIG. 1andFIG. 2, the iron core13is accommodated within the iron head14, and the iron head14is accommodated within the housing11.

The electric iron1operates in such a way that the iron core13is heated by energization. In order to avoid the damage of the housing11by the high-temperature iron core13, between the iron core13and a sidewall of the housing11, there is further arranged a heat insulating layer17, which is used for preventing transmission of heat from the iron core13at a higher temperature to the housing11at a lower temperature.

As for the internally heated type of the electric iron, the heat insulating layer17is disposed between the iron head14and the sidewall of the housing11. As for the externally heated type of the electric iron, the heat insulating layer is disposed between the iron core and the sidewall of the housing.

By providing the first gas conveying device on the housing11of the electric iron1and providing the second gas conveying device connected to the first gas conveying device on the handle12, it is possible to utilize negative pressure within the first gas conveying device and the second gas conveying device to suck in the smog produced during soldering at an end of the first gas conveying device far away from the second gas conveying device, and to discharge the smog. In this way, the smog produced during soldering is aspirated into the inside of the electric iron1and discharged from the working space before it spread into the air, and thus damage of the smog to the operator is decreased to the utmost extent. Furthermore, with the electric iron1provided by the present disclosure, collection and treatment can be carried on from the source of generating the smog, and an issue that the effect of discharging the smog varies from place to place within the working space can be solved.

Preferably, as shown inFIG. 1, the first gas conveying device may be, for example, an exhaust hole15, which is disposed within the sidewall of the housing11, a diameter of the exhaust hole15is smaller than thickness of the sidewall of the housing11, and the exhaust hole15runs through the housing11along an axial direction of the housing11. That is, the exhaust hole15is arranged in the same direction as the housing11, and an end of the exhaust hole15far away from the second gas conveying device is communicated with the air.

Preferably, the exhaust hole15is arranged in the middle of the sidewall of the housing11, namely, a distance d1between the exhaust hole15and an external sidewall of the housing11is equal to a distance d2between the exhaust hole15and an internal sidewall of the housing11.

The size of the exhaust hole15cannot be too large, otherwise, the sidewall11of the housing at the corresponding position of the exhaust hole15is thinner, and the housing11breaks easily, thereby affecting service life of the electric iron1. While in the case that the size of the exhaust hole15is too small, the discharging effect will be affected as well. Therefore, in order to give consideration to both the strength of the housing11and the discharging effect of the smog, preferably, the difference between the maximum thickness of the sidewall of the housing11and the diameter of the exhaust hole15, (d1+d2), is 5 mm. It is noted that, the value of (d1+d2) needs to be determined by the substance and the hardness of the housing11. If the housing11is of soft rubber substance, the thickness of the sidewall needs to be increased relatively, namely, the value of (d1+d2) needs to be bigger, so as to ensure that after the housing11is pinched flat during its use, normal gas suction of the second gas conveying device will not be affected. If the housing11is of hard engineering plastic, the value of (d1+d2) can be smaller relatively.

Preferably, as shown inFIG. 2, there are a plurality of the exhaust holes15, and they are distributed uniformly around the periphery of the housing11.

Preferably, there may be 2-8 exhaust holes15. In the embodiment of the present disclosure, taking account of the fact that the electric iron1belongs to a small-sized soldering device, and owing to the constraint of the diameter of the housing11, there are 6 exhaust holes15.

As shown inFIG. 1, the second gas conveying device may be, for example, a first exhaust pipe16, and the first exhaust pipe16is connected to the exhaust hole15.

For example, the first exhaust pipe16includes a first exhaust manifold161and first exhaust branch pipes162, and the number of the first exhaust branch pipes162is the same as the number of the exhaust holes15. Moreover, one end of the first exhaust branch pipe162is connected to a corresponding exhaust hole15, and the other end of the first exhaust branch pipe162is connected to the first exhaust manifold161, the first exhaust manifold161extending to the outside of the handle12. That is to say, each of the first exhaust branch pipes162corresponds to each of the exhaust holes15on a one-to-one basis, and each of the exhaust holes15is connected to a corresponding first exhaust branch pipe162, respectively.

As shown inFIG. 1, an end of the first exhaust manifold161not connected to the exhaust holes15may be connected to an air extractor2. The smog produced during soldering enters the exhaust holes15, respectively, then enters the first exhaust branch pipes162, and afterwards, converges into the first exhaust manifold161, and finally, the smog is discharged through the first exhaust manifold161, and enters the air extractor2.

Preferably, the first exhaust manifolds161and the first exhaust branch pipes162are hoses, and the first exhaust branch pipes162plug into the corresponding exhaust holes15, namely, the first exhaust branch pipes162are inserted into the exhaust holes15.

The length of that section of the first exhaust manifold161located outside the handle12may be set to be 1-2 m. Generally, the air extractor2is fixedly installed within the working space, for example, it is arranged on a rooftop or a wall of a workshop, a plant or a laboratory, and in the case that a hose is used as the first exhaust pipe16, it is convenient for the operator to move within a small area (the region with a radius of 1-2 m). It is more convenient for use.

In the case that power of the air extractor2is constant, the discharging effect is related to distance between an end of the exhaust holes15adjacent to the iron core13and the air extractor2. The greater the distance is, the less the discharging efficiency and the discharging effect are; the smaller the distance is, the better the discharging efficiency and the discharging effect are. As a result, for the sake of adjusting the effect of discharging the smog based on actual situation, the distance between the housing11and the handle12can be adjusted.

The handle12and a sidewall of the housing11may be threaded connected, for example, an external thread may be disposed on an external sidewall of an end of the housing11(i.e., the end connected to the handle12), and an internal thread may be disposed at an end of the handle12(i.e., the end connected to the housing11). By adjusting the thread screw-in distance between the handle12and the sidewall of the housing11, the distance between an end of the housing11adjacent to the iron core13(i.e., a soldering end) and the handle12can be adjusted, and thus the distance between an end of the exhaust holes15adjacent to the iron core13and the air extractor2is adjusted accordingly.

It is noted that, an extendable pipe may be further chosen as the first exhaust pipe16, and in this way, the length of the first exhaust pipe16can be further adjusted. Thus, the distance between an end of an exhaust hole15adjacent to the iron core13and the air extractor2is adjusted.

In another embodiment of the present disclosure, a first gas conveying device is positioned on an outer side of the housing11, and a second gas conveying device is positioned on an outer side of the handle12.

As shown inFIG. 3andFIG. 4, the first gas conveying device may be, for example, a second exhaust pipe18, the second exhaust pipe18is located on an outer side of a sidewall of the housing11along an axial direction of the housing11, and the length of the second exhaust pipe18is equal to the length of the housing11.

The second gas conveying device may be, for example, a third exhaust pipe19, and is located on an outer side of the handle12along an axial direction of the handle12. The third exhaust pipe19includes a third exhaust manifold191and third exhaust branch pipes192. The number of the third exhaust branch pipes192is the same as the number of the second exhaust pipes18, and moreover, one end of a third exhaust branch pipe192is connected to a corresponding second exhaust pipe18, and the other end of the third exhaust branch pipe192is connected to the third exhaust manifold191.

Preferably, there are a plurality of the second exhaust pipes18, and they are distributed uniformly around the periphery of the housing11.

Preferably, there are 2-8 second exhaust pipes18.

Other components and connection relationship of the electric iron1as shown inFIG. 3andFIG. 4are the same as components and connection relationship of the electric iron1as shown inFIG. 1andFIG. 2, and details are omitted here.

The present disclosure further provides a soldering device, which includes an air extractor2and an electric iron1. The aforesaid electric iron is used as the electric iron1, and its structure is not described here any longer. The air extractor2is connected to an end of the second gas conveying device (i.e., the exhaust pipes16in the present disclosure) that is not connected to the first gas conveying device (i.e., the exhaust holes15in the present disclosure).

By providing the first gas conveying device on the housing11of the electric iron1and providing the second gas conveying device connected to the first gas conveying device on the handle12, it is possible to utilize negative pressure within the first gas conveying device and the second gas conveying device to suck in the smog produced during soldering at an end of the first gas conveying device far away from the second gas conveying device, and to discharge the smog. In this way, the smog produced during soldering is aspirated into the electric iron1and is discharged from the working space before it spreads into the air, and thus damage of the smog to the operator is decreased to the utmost extent. Furthermore, with the electric iron1provided by the present disclosure, collection and treatment can be carried on from the source of generating the smog, an issue that the effect of discharging the smog varies from place to place within the working space can be solved.

According to the present disclosure, by arranging the first gas conveying device and the second gas conveying device on the housing11and the handle12of the electric iron, respectively, the soldering smog is extracted in vacuum, and thus the function of efficiently discharging the soldering smog is achieved. Thereby, damage of the smog caused by soldering to the human body is reduced substantially.

According to the present disclosure, a vacuum tube is combined with a soldering electric iron, so as to achieve discharging effects of intensiveness, convenience and high efficiency. When smoke and dust are produced by the electric iron1, the smog can be extracted and discharged, so that diffusion of the smog is reduced, and further, the operator's health is protected. It is predicted that the extracted toxic smog can reach more than ninety-five percent. With the electric iron and the soldering device according to the present disclosure, it is not necessary to manually adjust the air extractor any more, and the steps of soldering operation are optimized. According to the present disclosure, a trumpet-shaped air suction device on each air extractor in the working space can also be omitted, and utilization ratio of an operating desk is optimized. Thus, the working space after intensiveness is improved.

It can be understood that, the foregoing embodiments are merely exemplary embodiments used to explain the principle of the present disclosure, but the present disclosure is not limited thereto. For those skilled in the art, various variances and modifications can be made without departing from the spirit and essence of the present disclosure. As such, these variances and modifications are deemed as falling within the protective scope of the present disclosure.