WO2018199381A1

WO2018199381A1 - Portable welding machine having connection unit

Info

Publication number: WO2018199381A1
Application number: PCT/KR2017/006305
Authority: WO
Inventors: 박응덕; 이보영
Original assignee: 주식회사 렉스웰
Priority date: 2017-04-25
Filing date: 2017-06-16
Publication date: 2018-11-01
Also published as: KR102020983B1; KR20180119213A

Abstract

A portable welding machine having a connection unit according to the present invention, which is a portable welding machine having a connection unit for attaching and detaching a welding rod, comprises: a body; an output unit provided in the body to selectively provide output power to the welding rod; and a connection unit provided in a part of the body so as to be connected to the output unit, and having the welding rod inserted therein, wherein the connection unit is detachably provided such that the output power is applied to the welding rod.

Description

Portable Welder with Connection Unit

The present invention relates to a portable welding machine, and more particularly, to a portable welding machine provided with a connecting unit that is provided with a connecting unit at a position where the welding rod is coupled to correspond to various types of welding electrodes.

In general, welding is a general term for joining metal materials separated from each other by applying heat, pressure, or heat and pressure at the same time. The welding is performed by melting a joint of a member by local heating, and by dissolving another metal having a low melting point between the joints. It is roughly classified into alloying soldering.

Among these, fusion welding can be divided into arc welding, gas welding, resistance welding, special welding, etc., and is also called electric welding because it uses electricity to coalesce two metals. In this electric welding, electricity is applied to the electrode and the base material so that a strong current (about 10 to 500 A) flows through the electrode and the base material, and the metal is melted and joined by the heat generated at that time.

At this time, the strong current used for welding is obtained by using the welding machine inverter, and the welding machine inverter rectifies the commercial power into DC, converts the DC into AC by switching a plurality of electronic switches, and then converts the voltage into a transformer. Rectify to obtain direct current.

However, such a welding device has to be connected to a power source at all times, so that its portability is inconvenient, and it is not only able to detect whether it is electrically connected between the ground and the welding part, but also has inconvenience in use in a narrow place.

For example, in case of welding to the facilities of a building, such as welding of pipes, the welding place is often not constant. For this reason, it is not possible to weld where welding is necessary due to various inconveniences in moving the welding device. There is a problem that occurs

Therefore, there is an urgent need for a portable welder to solve these problems.

The present invention has been made in order to solve the above-mentioned problems of the prior art, and since the main parts of the output power system of the welding apparatus are centrally arranged in a single unit in the body, the portable welding machine can be used anytime and anywhere by miniaturization and movement To provide.

In addition, to provide a portable welding machine equipped with a connection unit that can combine a variety of welding rods to perform welding in response to the narrow welding position of the narrow place.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

Portable welding machine equipped with a connection unit of the present invention for achieving the above object is a portable welding machine provided with a connection unit to detach the welding rod, the body, the output provided to the inside of the body to selectively provide the output power to the electrode It is provided in a portion of the unit and the body is connected to the output unit, and includes a connecting unit in which the welding rod is inserted therein, the connecting unit is detachably provided can supply the output power to the welding rod.

And the connecting unit is formed in the shape of a plate coupled to the part of the body coupled plate, the length is formed is inserted into the base, the output joint is supplied to the output power from the output unit and the output therein A portion of the nipple is inserted and coupled to the body in a form surrounding the coupling plate, and may include a closing cover having an insertion hole formed with a plurality of protrusions on a portion of the inner circumference.

In addition, the connection unit may be coupled to the output joint, and may include a conversion unit fitted to the inner circumference of the insertion hole.

The conversion part is formed to be long and partially inserted into the output joint part, and is provided in the form of a gripping means for holding the welding rod and a circumference of the gripping means, and at least a part of the circumference is inserted into the insertion hole. It may include a fixing means to be fixed.

In addition, the output unit, the heat sink is formed long and hollow in the center, the system controller coupled to one surface of the heat sink to control the output power, provided in the heat sink facing the system controller and provided to the system controller It may include a power input and output unit for inputting and outputting the output power and the driving unit electrically connected to the lower portion of the power input and output unit to turn on / off the operation of the system control unit.

And the output unit, the charge-discharge type battery is detachably coupled to the bottom may include a power supply for maintaining a balance for the total weight during welding.

It may also include a blocking portion detachably coupled to a portion of the body to block impurities generated during welding to the user.

Portable welding machine equipped with a connection unit of the present invention for solving the above problems has the following effects.

First, it has the advantage of miniaturizing to a single body and separating the components of the system into a heating component group and a non-heating component group to increase the heat dissipation effect.

Second, the blocking portion is hinged to the body and can be rotated, there is an advantage that can prevent the impurities generated during the welding operation toward the user.

Third, the connecting unit is detachably provided to selectively couple the welding rods according to the conversion unit corresponding to various types of welding rods.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a view showing an overall perspective view of a portable welding machine equipped with a connection unit according to an embodiment of the present invention;

2 is a view showing the internal configuration of a portable welding machine according to an embodiment of the present invention;

Figure 3 is a perspective view showing a coupling unit in a portable welding machine according to an embodiment of the present invention;

Figure 4 is a view showing a welding rod coupled state in a portable welding machine equipped with a connection unit according to an embodiment of the present invention;

5 is a view showing a state in which the extended electrode is coupled in a portable welding machine equipped with a connection unit according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the accompanying drawings are only described in order to more easily disclose the contents of the present invention, but the scope of the present invention is not limited to the scope of the accompanying drawings that will be readily available to those of ordinary skill in the art. You will know.

In describing the embodiments of the present invention, the same names and the same reference numerals are used for the components having the same functions, and are not completely identical to the components of the prior art.

Also, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

First, a portable welder equipped with a connection unit 300 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3.

1 is a view showing an overall perspective view of a portable welding machine according to an embodiment of the present invention, Figure 2 is a view showing the internal configuration of a portable welding machine according to an embodiment of the present invention, Figure 3 is an embodiment of the present invention Is a combined perspective view showing a connection unit 300 in a portable welding machine according to the example.

The configuration of the portable welding machine equipped with the connection unit 300 according to an embodiment of the present invention includes a body 100, an output unit 200 and the connection unit 300.

The overall appearance of the connection unit 300 provided in the portable welding machine of the present invention is as shown in FIG. 1.

First, the body 100 is provided with a central portion 120 and the handle portion 140.

The body 100 is integrally arranged on a circuit board provided therein with various components that apply power to perform welding and provide an output to the electrode.

Details will be described later.

Subsequently, the handle 140 has a switch s formed to face the direction in which the electrode is mounted on the body 100.

Switch (s) is formed in the form of a button when the user grips the handle 140, by operating the drive unit 280 to be described later can be simply on / off the power to the palm.

In addition, a separate blocking part 10 is provided around the body 100 to prevent impurities generated during welding from being directed to the user.

The blocking part 10 is provided with a blocking film 11, a fitting member 12, and a coupling part (not shown).

The blocking unit 10 may be coupled to an upper side of the central portion 120 of the body 100 and disposed along a direction in which impurities are splashed, and may not only prevent impurities generated during welding from splashing on the face, but also light emitted from the welding region. It serves to protect the eyes from.

Specifically, the coupling portion is formed in the form of a plate coupled to the magnet on the body 100, the shape is provided to be deformable.

Therefore, the coupling part is detachable to deform a part of the shape to be attached to the outer shape of the body.

The fitting member 12 is formed on the outer surface of the coupling portion.

The fitting member 12 includes a hinge member (not shown) coupled to the coupling part by a hinge, and the hinge member has a rotating shaft and is formed to be rotatable.

And the blocking film 11 is inserted into the fitting member (12).

Here, the fitting member is formed long and a groove is formed therein, so that the plate-shaped blocking film 11 is inserted into the groove.

In addition, the blocking film 11 is formed to be translucent and is provided in the form of being slid to the hinge-fitting member 12 is formed to be folded around the body 100.

Therefore, the blocking unit 10 may deform the shape corresponding to the impurities during welding.

The impurity here includes an arc generated during the welding operation.

In the present embodiment, the blocking film 11 is provided with a dark acrylic plate and its size can be variously modified according to a welding operation, and the fitting member 12 can be detachably provided on the body 100.

Let's continue looking at the internal structure.

Inside the central portion 120 is provided with an output unit 200 for selectively providing the output power to the electrode.

The output unit 200 is formed of a rectangular parallelepiped in the central portion 120 of the body 100 and a heat sink 220 in which a hollow is formed therein, and a rectifier, a transistor, and an inverter are arranged on one surface of the heat sink 220. A pulse width modulation (PWM) circuit coupled to the heat sink 220 and facing the power input / output unit 240 around the heat sink 220 and supplying DC power and controlling the output power of the system is provided. One system control unit 240 is provided.

In addition, the handle 140 includes a driving unit 280 electrically connected to the lower portion of the power input / output unit 240 to turn on / off the operation of the system control unit 240.

In addition, the output unit 200 includes a power supply unit 290 that is detachably coupled to the lower portion of the handle 140 to maintain a balance during welding through the distribution of the total weight.

The power supply unit 290 may be provided as a rechargeable battery, or may be connected to a power source.

And a part of the body 100 is provided with a ground line (G).

This will be described in detail with reference to FIG. 2.

First, the heat sink 220 is formed of a rectangular parallelepiped made of a metal material including aluminum, and a hollow is long and partitioned therein.

In addition, a power input / output unit 240 is disposed on an upper surface of the heat sink 220, and a system controller 240 is provided on a lower surface of the heat sink 220 to face the power input / output unit 240.

Here, the heat sink 220 is provided between the power input / output unit 240 mounted as the heat generating component and the system control unit 240 in which the non-heat generating component is mounted using a DC power source, so as not to be influenced by heat.

The heat formed in the hollow of the heat sink 220 may be discharged to the outside by the discharge fan f provided in a part of the body 100.

As described above, the portable welding device of the present invention has an advantage that the output unit 200 is coupled to various electrical equipments on the top and bottom surfaces of the heat sink 220 and is compactly provided as a whole.

Next, Figure 3 looks at with respect to the connection unit 300 according to an embodiment of the present invention.

The connection unit 300 includes a coupling plate 320, an output joint 340, and a closing cover 360 in detail.

The connection unit 300 is provided at a part of the body 100 to be electrically connected to the output unit 200, and at least one of the extension coupling parts B to which the welding rod A or the welding rod A is extended is coupled. do.

And the connection unit 300 is fixed to the welding rod (A) by at least a portion of the connection unit 300 is detached or replaced corresponding to the welding rod (A) or extension coupling portion (B) to be coupled.

Specifically, the coupling plate 320 is formed in a plate shape is coupled to a portion of the body 100, the groove is formed in communication with the output unit 200 in a portion.

The output joint 340 is formed to be long and a part of the output joint 340 is inserted into the groove of the coupling plate 320 and receives output power from the output unit 200.

And the closing cover 360 is coupled to the coupling plate 320 in the form of a portion of the output joint 340 is inserted therein surrounding the coupling plate 320, a plurality of protrusions formed on the inner circumference Insertion holes (not shown) are formed.

Here, the insertion hole is divided into a part of the formed longitudinal direction to form a projection.

It will be described with reference to the drawings.

As shown, the connecting unit 300 is provided in a portion of the body 100 toward the direction in which the welding is performed, the coupling plate 320 is coupled to a portion of the body 100 in the form of a circular plate.

In addition, a groove protrudes from the central portion 120 so that a part of the output joint 340 is inserted.

At least a part of the output joint 340 is inserted into the groove and is formed of a metal material through which the output joint 340 receives the output power from the output unit 200.

The output joint 340 is formed to have a long cylindrical shape is inserted into the groove of the coupling plate 320.

When the output joint 340 is inserted into the groove of the coupling plate 320, the output joint 340 is fixed with a screw so as not to fall out of the coupling plate 320.

Subsequently, the closing cover 360 is formed in a funnel shape as shown in the drawing, and the insertion hole is formed to be long in the inside, so that a part of the output joint 340 is inserted.

At this time, the insertion hole is not formed in the portion where the output joint 340 is inserted.

And the closing cover 360 is coupled to the coupling plate 320 to conceal the output joint 340.

In the present embodiment, the closing cover 360 is formed in a funnel shape, but this is only one embodiment, and may be provided in various forms as long as a plurality of protrusions are formed in the inner circumference corresponding to the shape of the insertion hole. .

Meanwhile, the connection unit 300 further includes a conversion unit 380.

The conversion part 380 is coupled to the output joint 340 through the insertion hole to fix the welding rod (A).

Specifically, the conversion unit 380 is formed long, one side is penetrated through the insertion hole and coupled to the output joint 340, gripping the welding rod (A) and a plurality of protruding members are formed to hold the welding rod (A) It includes a means 382 and the fixing means 384 wrapped around the other side of the protruding member and coupled to the closing cover 360 to hold the holding means 382 and the welding rod (A).

Here, the welding rod refers to the welding rod A used in the welding operation.

Therefore, the holding means 382 is formed with a plurality of protruding members (not shown) that can grip the circumference so as to hold the end of the welding rod (A).

The protruding members are spaced apart from each other, and a part of the longitudinal direction of the welding rod (A) is inserted into the shape to grip the circumference.

At this time, the fixing means 384 is coupled to a part of the holding means 382 so as to hold the welding rod A by reducing the distance between the protruding members.

Fixing means 384 is formed in a cylindrical shape, the diameter of one end and the other end is provided differently.

Therefore, the protruding member is inserted into a portion having a small diameter so that the degree of gripping to hold the welding rod A can be adjusted.

And the fixing means 384 is a projection corresponding to the projection of the insertion hole formed in at least a portion of the circumference is fitted to the closing cover 360.

At this time, one end of the gripping means 382 is fixed to the fixing means 384, the other end is inserted into the output joint 340 to receive the output power to apply the output power to the welding rod (A).

Here, the gripping means 382 is formed with four protruding members, but this is only an example and the scope of rights is not reduced according to the number of the protruding members.

When the electrode (A) is used in this way is connected to the body 100 using the conversion unit 380.

4 and 5 to look at the change of the connection unit 300 according to different welding rods in the portable welding machine provided with a connection unit 300 according to an embodiment of the present invention.

4 is a view showing a state in which the welding rod (A) is coupled in a portable welding machine provided with a connection unit 300 according to an embodiment of the present invention, Figure 5 is a connection unit 300 according to an embodiment of the present invention ) Is a view showing a state in which the extension coupling portion (B) is coupled in a portable welder provided.

The order in which the welding rods A are coupled will be described with reference to the drawings.

First, the coupling plate 320 is coupled to a portion of the body 100.

The output joint 340 is coupled to a groove formed in a portion of the coupling plate 320.

And the closing cover 360 is coupled to the coupling plate 320 in a state in which a portion of the output joint 340 is inserted into the insertion hole.

If the welding rod becomes the welding rod A, the conversion unit 380 is inserted into the insertion hole.

Specifically, in the state in which the welding rod A is inserted into the holding means 382, the fixing means 384 is inserted into the holding means 382 in which the welding rod A is inserted to fix the welding rod A firmly.

In this state, a plurality of protrusions formed around the fixing means 384 are fitted to the plurality of protrusions formed on the inner circumference of the closing cover 360.

In another embodiment, the closing cover 360 is detachably coupled to a portion of the body 100.

Here, the closing cover 360 may be coupled to the body 100 by rotating or bound in a lever (Lever) form.

Specifically, the closing cover 360 is a binding member (not shown) is formed in a portion of the circumference and the groove (not shown) is formed in the body 100 to which the closing cover 360 is coupled to the closing cover 360 is the body ( And coupled to the lever.

In addition, the closing cover 360 may be coupled to rotate the threaded form is formed to be coupled to the body (100).

This is only one embodiment, the manner in which the closing cover 360 is coupled to the body 100 can be variously changed by those skilled in the art and thus the scope of rights is not limited.

In this case, the other end of the gripping means 382 is connected to the output joint 340 to receive the output power transmitted from the output unit 200.

When the portable welding machine is driven in such a manner, the portable welding machine is driven through the switch s and the sparks or sparks generated while performing the welding are blocked by folding and rotating the blocking film 11 in various places and welding environments. Corresponding welding can be performed.

Next, if the electrode is provided in an extended form, it can be combined using another conversion unit 380.

As shown in FIG. 5, the extension coupling part B is formed long so that one side is connected to the output joint and the other side is coupled to the welding rod.

Specifically, the extension coupling part (B) is made of a flexible material and has an electric wire therein so that one side of the extension cable (not shown) is coupled to the output joint through the insertion hole and the other side of the extension cable is provided with a welding rod. A clamp (not shown) for holding (A) is included.

Wherein the clamp is at least partly made of a material capable of energizing is electrically connected to the extension cable,

This is for supplying the output power supplied from the output joint 340 to the welding unit A when the user grips the welding rod A. FIG.

Thus, if the extension coupling portion (B) is provided has the advantage that the welding can be performed in a narrower place than the size of the body.

One end of the extension cable is coupled to the connection unit 300, the other end is formed with a welding rod (A) tongs that can hold the welding rod (A).

Here, the extension cable is connected to the output joint 340 to receive the output power.

If the connection unit 300 is provided in such a form to correspond to the shape of the welding rod, various types of welding rods can be combined to have an advantage that it can correspond to the working environment.

As described above, the preferred embodiments of the present invention have been described, and the fact that the present invention can be embodied in other specific forms in addition to the above-described embodiments without departing from the spirit or scope thereof has ordinary skill in the art. It is obvious to them. Therefore, the above-described embodiments should be regarded as illustrative rather than restrictive, and thus, the present invention is not limited to the above description and may be modified within the scope of the appended claims and their equivalents.

Claims

Body;

An output unit provided inside the body to selectively provide output power to the electrode; And

A connection unit provided on a portion of the body and electrically connected to the output unit, and at least one of a welding rod or an extension coupling portion to which the welding rod is extended; Including;

The connecting unit is a portable welding machine for fixing at least a portion of the connection unit to be detached or replaced corresponding to the welding rod or the extended coupling portion is coupled.
The method of claim 1,

The connection unit,

A coupling plate formed in a plate shape and coupled to a portion of the body;

An output joint part formed to be long and a part of which is inserted into the base and receives output power from the output unit; And

A portion of the output joint part inserted therein and coupled to the body in a form surrounding the coupling plate, and a closing cover having an insertion hole formed in a portion thereof;

Portable welder comprising a.
The method of claim 2,

The connection unit,

A portable welder comprising a part coupled to the output joint through the insertion hole to fix the welding rod.
The method of claim 3,

The conversion unit,

Gripping means formed on one side is coupled to the output joint through the insertion hole, a plurality of protruding members are formed on the other side to hold the welding rod; And

A fixing means surrounding the other side of the protruding member and coupled to the closing cover to fix the holding means and the welding rod;

Portable welder comprising a.
The method of claim 4, wherein

The holding means,

Portable welder, characterized in that the diameter of one side is stretched to hold the welding rod.
The method of claim 2,

The extended coupling portion,

Portable welder is formed long and one side is connected to the output joint, the other side is coupled with the welding rod.
The method of claim 6,

The extended coupling portion,

An extension cable composed of a flexible material and having an electric wire therein, the one end of which is coupled to the output joint through the insertion hole; And

A clamp provided on the other side of the extension cable to hold the welding rod;

Portable welding machine including
The method of claim 7, wherein

The clamp is,

Portable welder, characterized in that at least part is made of a conductive material and electrically connected to the extension cable
The method of claim 1,

The output unit,

A system control unit provided in the body to control an output power;

An input / output unit disposed to be spaced apart from the system control unit to supply output power to the system control unit;

A heat sink connected between the power input and output unit and the system control unit, respectively, and forming a hollow at the center to cool the heat sink; And

A driving unit electrically connected to the power input / output unit to turn on / off an operation of the system control unit;

Portable welder comprising a.
The method of claim 1,

The output unit,

Portable welder provided in the lower portion of the body including a power supply for receiving power.
The method of claim 10,

The power supply unit,

Portable welder with detachable battery inside to maintain balance during welding through distribution of total weight
The method of claim 1,

A blocking unit coupled to a portion of the body to block impurities generated during welding from being directed to a user;

Portable welder comprising a.
The method of claim 12,

The blocking unit,

Portable welder, characterized in that detachably coupled to the body.
The method of claim 13,

The blocking unit,

A coupling part coupled to the body by a magnet;

A fitting member protruded from a portion of the coupling part and hinged and rotated with a rotation axis in a protruding direction; And

A blocking film slidingly coupled to the fitting member to block impurities;

Portable welder comprising more.
The method of claim 14,

The blocking film,

Portable welder, characterized in that formed in a transparent color, to protect the eyes from the light emitted during welding.
The method of claim 1,

The body,

A portable welding machine comprising a center portion to which a connection unit for supplying power to perform welding and providing an output to the electrode is accommodated, and a handle portion formed integrally with the center portion to be gripped by a user.
The method of claim 16,

The handle portion,

Portable welding machine characterized in that the switch is provided in the form of a physical button to operate the drive unit in a user grip.
The method of claim 17,

The switch,

Portable welding machine that the user operates in the palm of the hand facing the direction in which the welding rod is mounted.
The method of claim 1,

The body,

Portable welder, characterized in that the discharge fan for discharging the heat generated from the inside to the outside.
The method of claim 19,

The discharge fan,

Portable welder, characterized in that disposed in the communication portion with the output unit facing the portion formed in the body.