CN216829095U

CN216829095U - Electric welding and charging dual-purpose machine

Info

Publication number: CN216829095U
Application number: CN202122768752.0U
Authority: CN
Inventors: 陆金理; 李政; 赵政; 王佳
Original assignee: Beijing Urban Construction Group Co Ltd
Current assignee: Beijing Urban Construction Group Co Ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-06-28
Anticipated expiration: 2031-11-12

Abstract

The utility model discloses an electric welding and charging dual-purpose machine, which comprises: the transformer comprises a shell and a transformer arranged in the shell, wherein a plurality of primary coils with different turns are arranged on the primary side of the transformer, a plurality of first leads are arranged at the input ends of the primary coils, any two first leads in the first leads are connected to an alternating current terminal, a plurality of secondary coils with different turns are arranged on the secondary side of the transformer, a plurality of second leads are arranged at the output ends of the secondary coils, and the second leads are respectively connected to a direct current terminal through a rectifier filter circuit. The utility model designs and manufactures a dual-purpose machine which can be used for electric welding operation and charging a storage battery by utilizing a waste motor stator core, has the advantages of small volume, light weight, portability and strong practicability, and simultaneously solves the problems of use of electric welding equipment and waste recycling.

Description

Electric welding and charging dual-purpose machine

Technical Field

The utility model belongs to the technical field of electric welding and charging equipment, and particularly relates to an electric welding and charging dual-purpose machine.

Background

The electric welder is a device which utilizes the high-temperature electric arc electricity generated by the positive and negative poles in the short time of the instant short circuit to melt the welding flux and the welded material on the welding electrode, and the welded material is combined with the contacted object, the structure is simple, the electric welder is equivalent to a high-power transformer, the charger adopts the high-frequency power supply technology, applies the advanced intelligent dynamic adjustment charging technology, adopts the constant-current/constant-voltage/small-constant-current intelligent three-stage charging mode, and has the characteristics of high charging efficiency, simple operation, light weight, small volume and the like. With the development of industry, the application places of electric welding machines and charging machines are more and more, for example, in the automobile repair industry, the electric welding machines and the charging machines can be used simultaneously, most of the existing electric welding machines and charging machines are two independent bodies, the size is large, the electric welding machines and the charging machines are not convenient to carry, and in order to save cost, patent CN94230292.3 discloses an electric welding and charging dual-purpose machine.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present invention provides an electric welding and charging dual-purpose machine, so as to solve the problem that the existing electric welding and charging dual-purpose machine can only provide one charging voltage, and the application range is limited.

In order to achieve the above object, the present invention provides an electric welding and charging dual-purpose machine, comprising:

the transformer comprises a shell and a transformer arranged in the shell, a plurality of primary coils with different turns are arranged on the primary side of the transformer, a plurality of first leads are arranged at the input ends of the primary coils, any two first leads in the first leads are connected to an alternating current terminal, a plurality of secondary coils with different turns are arranged on the secondary side of the transformer, a plurality of second leads are arranged at the output ends of the secondary coils, the second leads are connected to a direct current terminal through a rectifying and filtering circuit respectively, and the output voltage of the direct current terminal is 6V, 12V and 24V respectively.

According to an embodiment of the present invention, the transformer includes a stator core, and the primary coils are uniformly arranged along an inner circumference of the stator core and the secondary coils are uniformly arranged along an outer circumference of the stator core.

According to an embodiment of the utility model, the primary coil is wrapped with insulating paper, and the insulating paper is made of polyester film green-shell paper.

According to one embodiment of the utility model, the secondary coil is provided with an insulating ventilation duct, and the insulating ventilation duct is made of 1.2-1.5 mm supporting strips.

According to a specific embodiment of the utility model, the primary coil is a 2.44mm round section enameled wire.

According to one embodiment of the utility model, the secondary coil is a 50mm copper core plastic covered wire.

According to one embodiment of the utility model, the input voltage at the primary side of the transformer is 380V or 220V.

According to an embodiment of the present invention, the output induced currents on the secondary side of the transformer are 40A, 70A, 100A, and 200A, respectively.

Compared with the prior art, the dual-purpose machine for electric welding and charging provided by the utility model is designed and manufactured by utilizing the waste motor stator core, can be used for electric welding operation and charging the storage battery, has the advantages of small volume, light weight, convenience in carrying and strong practicability, and simultaneously solves the problems of use of electric welding equipment and recycling of waste.

Drawings

Fig. 1 is a schematic circuit diagram of an electric welding and charging dual-purpose machine according to an embodiment of the present invention.

Fig. 2 is a circuit diagram of a transformer provided according to an embodiment of the present invention.

Fig. 3 is a circuit diagram of a rectifying and filtering circuit provided according to an embodiment of the utility model.

Reference numerals are as follows:

1-a transformer circuit; 1.1-a first lead; 1.2-a second lead; 1.3-ac terminals; 2-a rectifying and filtering circuit; 2.1-direct current terminal; 2.2-resistance; 2.3-resistance-capacitance protection capacitance; 2.4-silicon rectifier diode.

Detailed Description

The present invention is described in detail below with reference to specific embodiments in order to make the concept and idea of the present invention more clearly understood by those skilled in the art. It is to be understood that the embodiments presented herein are only a few of all embodiments that the present invention may have. Those skilled in the art who review this disclosure will readily appreciate that many modifications, variations, or alterations to the described embodiments, either in whole or in part, are possible and within the scope of the utility model as claimed.

As used herein, the terms "first," "second," and the like are not intended to imply any order, quantity, or importance, but rather are used to distinguish one element from another. As used herein, the terms "a," "an," and other similar terms are not intended to mean that there is only one of the things, but rather that the pertinent description is directed to only one of the things, which may have one or more. As used herein, the terms "comprises," "comprising," and other similar words are intended to refer to logical interrelationships, and are not to be construed as referring to spatial structural relationships. For example, "a includes B" is intended to mean that logically B belongs to a, and not that spatially B is located inside a. Furthermore, the terms "comprising," "including," and other similar words are to be construed as open-ended, rather than closed-ended. For example, "a includes B" is intended to mean that B belongs to a, but B does not necessarily constitute all of a, and a may also include C, D, E and other elements.

The terms "embodiment," "present embodiment," "an embodiment," "one embodiment," and "one embodiment" herein do not mean that the pertinent description applies to only one particular embodiment, but rather that the description may apply to yet another embodiment or embodiments. Those skilled in the art will appreciate that any descriptions made in relation to one embodiment may be substituted, combined, or otherwise combined with the descriptions in relation to another embodiment or embodiments, and that the substitution, combination, or otherwise combination of the new embodiments as produced herein may occur to those skilled in the art and are intended to be within the scope of the present invention.

Example 1

Additional aspects and advantages of embodiments of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the utility model. With reference to fig. 1 to 3, an electric welding and charging dual-purpose machine provided by an embodiment of the present invention includes:

the transformer comprises a shell and a transformer arranged in the shell, wherein a plurality of primary coils with different turns are arranged on the primary side of the transformer, a plurality of first lead wires 1.1 are arranged at the input ends of the primary coils, any two first lead wires 1.1 in the first lead wires 1.1 are connected to an alternating current terminal 1.3, a plurality of secondary coils with different turns are arranged on the secondary side of the transformer, a plurality of second lead wires 1.2 are arranged at the output ends of the secondary coils, the second lead wires 1.2 are connected to a direct current terminal 2.1 through a rectifying and filtering circuit respectively, and the output voltage of the direct current terminal 2.1 is 6V, 12V and 24V respectively. The input voltage of the primary side of the transformer is 380V or 220V, and the output induced currents of the secondary side of the transformer are 40A, 70A, 100A and 200A respectively. The rectifying and filtering circuit comprises a resistor 2.2 and a resistance-capacitance protection capacitor 2.3 which are connected in series, four silicon rectifier diodes 2.4 are connected in parallel at two ends of the resistor 2.2 and the resistance-capacitance protection capacitor 2.3, and the four silicon rectifier diodes 2.4 are connected in parallel in pairs.

Specifically, the transformer includes a stator core, and the primary coils are uniformly arranged along an inner circumference of the stator core, and the secondary coils are uniformly arranged along an outer circumference of the stator core. The winding of the embodiment of the utility model adopts single-layer arrangement, the primary coil is wound inside, and the secondary coil is wound outside and uniformly distributed along the circumference of the stator core respectively. When the conducting wire is wound on the annular iron core, the inner diameter coil sides are arranged to be denser and the outer diameter coil sides are arranged to be sparser, and certain gaps are formed to facilitate ventilation and heat dissipation.

Specifically, according to the electromagnetic induction rule, the current of a primary winding coil of the transformer is small, so that the primary winding adopts a round section enameled wire with the diameter of 2.44mm, the total number of turns is 652, and middle taps are reserved at 275 turns and 481 turns respectively. According to the electromagnetic induction rule, the current of the secondary winding coil of the transformer is large, so that the secondary coil adopts 50mm copper core plastic covered wire, the total number of turns is 105, and middle taps are reserved at 9 turns, 18 turns and 35 turns respectively.

Specifically, the outer side of the primary coil is wrapped with insulating paper, and the insulating paper is made of polyester film green-shell paper. Be provided with insulating ventiduct on the secondary coil for ventilation cooling, insulating ventiduct adopts 1.2~1.5 mm's stay preparation to form.

The working principle of the electric welding and charging dual-purpose machine provided by the embodiment of the utility model is as follows:

1. electric welding principle:

in order to expand the application range of the welding machine, the embodiment of the utility model adjusts the output current of the secondary side by adjusting the number of turns of the primary coil so as to adapt to the welding requirements of welding rods with different specifications. As shown in fig. 2, a primary coil with three turns is disposed on the primary side of the transformer, the turns of the coil are 275 turns, 481 turns and 652 turns, four first lead wires 1.1 are disposed and connected to four ac terminals 1.3, the ac terminals 1.3 are 1, 2, 3 and 4, respectively, a secondary coil with four turns is disposed on the secondary side of the transformer, the turns of the coil are 9 turns, 18 turns, 35 turns and 105 turns, 5 second lead wires 1.2 are disposed and connected to five dc terminals 2.1, the dc terminals 2.1 are 1, 2, 3, 4 and 5, respectively, 380V or 220V ac is input between the

ac terminals

1 and 2, or between the

ac terminals

1 and 3, or between the

ac terminals

1 and 4, 40A current and 40A current can be output by induction between the

dc terminals

1 and 2 on the secondary side of the transformer based on the electromagnetic induction principle, 70A current can be correspondingly induced and output between the

direct current terminals

1 and 3 on the secondary coil side of the transformer based on the electromagnetic induction principle, 100A current can be correspondingly induced and output between the

direct current terminals

1 and 4 on the secondary coil side of the transformer based on the electromagnetic induction principle, and 200A current can be correspondingly induced and output between the direct current terminals 1 and 5 on the secondary coil side of the transformer based on the electromagnetic induction principle, and the current is respectively used for electric welding.

2. Principle of charging

380V or 220V alternating current is input between

alternating current terminals

1 and 4 on the primary side of the transformer, 6.5V alternating current is induced between

direct current terminals

1 and 2 on the secondary side of the transformer through the electromagnetic induction principle, 12.5V alternating current is induced by

direct current terminals

1 and 3, or 24.5V alternating current is induced by direct

current terminals

1 and 4, and bridge rectifier filter circuits are connected between

direct current terminals

1 and 2, or 1 and 3, or 1 and 4 on the secondary side to form a simple charger, so that a 6V, or a 12V or two 12V series-connected storage batteries can be charged.

Example 2

The embodiment of the utility model provides a manufacturing method of an electric welding and charging dual-purpose machine, which comprises the following steps:

the iron core for manufacturing the electric welding machine can be selected from scrapped motors. The selection conditions are generally considered from the following aspects:

(1) the inner diameter of the selected stator core is required to be as large as possible.

(2) The stator core length is as short as possible.

(3) The yoke height of the stator core is large and the slot height is small. This makes the effective sectional area of the core larger.

(4) According to the electromagnetic induction law, a 2.44mm circular section enameled wire is selected for a small current of a primary winding coil of a transformer, the total number of turns is 652, and middle taps are reserved at the positions of 275 turns and 481 turns respectively. According to the electromagnetic induction rule, a secondary winding with a large current of a secondary winding coil (welding) of the transformer selects a 50mm copper core plastic covered wire, the total number of turns is 105, and middle taps are reserved at 9 turns, 18 turns and 35 turns respectively.

After practice, the number of poles of the iron core of the stator of a general waste motor is preferably 6 poles, and the capacity of the iron core is 10-15 KW, and after the iron core is selected, the shell of the stator is cut off to remove a cast iron part. The winding is arranged in a single layer, the primary coil is wound inside, and the secondary coil is wound outside and uniformly distributed along the circumference of the stator core respectively. When the conducting wire is wound on the annular iron core, the inner diameter coil sides are arranged to be dense, the outer diameter coil sides are arranged to be sparse, a certain gap is formed, ventilation and heat dissipation are facilitated, polyester film green-shell paper is used for wrapping and insulating along the circle of the stator iron core after the primary coil is wound, and the secondary coil is used as an insulating ventilation duct through supporting strips with the thickness of 1.2-1.5 mm.

The technical data of circuit elements in the bridge rectifier circuit are as follows:

(1) silicon rectifier diode D-100V 30A

(2) Resistance-capacitance protection capacitor C-10 uF400V

(3) Resistance R-5 omega 10W

In conclusion, the electric welding and charging dual-purpose machine provided by the utility model is designed and manufactured by utilizing the waste motor stator core, can be used for electric welding operation and charging the storage battery, has the advantages of small volume, light weight, convenience in carrying and strong practicability, and simultaneously solves the problems of use of electric welding equipment and waste recycling.

The concepts, principles and concepts of the utility model have been described above in detail in connection with specific embodiments (including examples and illustrations). Those skilled in the art will appreciate that the embodiments of the present invention are not limited to the above-described forms, and that the steps, methods, devices, components and parts of the above-described embodiments may be modified, substituted, and equivalents thereof, after reading the present disclosure, which are deemed to fall within the scope of the present invention, which is to be limited only by the claims.

Claims

1. An electric welding and charging dual-purpose machine is characterized by comprising: the transformer comprises a shell and a transformer arranged in the shell, wherein a primary side of the transformer is provided with a plurality of primary coils with different turns, the input end of each primary coil is provided with a plurality of first leads, any two of the first leads are connected to an alternating current terminal, a secondary side of the transformer is provided with a plurality of secondary coils with different turns, the output end of each secondary coil is provided with a plurality of second leads, the second leads are connected to a direct current terminal through a rectifier filter circuit, and the output voltage of the direct current terminal is 6V, 12V and 24V respectively.

2. An electric welding and charging machine according to claim 1, wherein said transformer includes a stator core, said primary coils being arranged uniformly along an inner circumference of said stator core, and said secondary coils being arranged uniformly along an outer circumference of said stator core.

3. An electric welding and charging dual-purpose machine according to claim 1, wherein the outer side of the primary coil is wrapped with insulating paper, and the insulating paper is made of polyester film green-shell paper.

4. An electric welding and charging dual-purpose machine according to claim 1, wherein an insulating air duct is arranged on the secondary coil, and the insulating air duct is made of 1.2-1.5 mm supporting strips.

5. An electric welding and charging dual-purpose machine according to claim 1, wherein a round section enameled wire of 2.44mm is adopted as the primary coil.

6. An electric welding and charging machine as claimed in claim 1, wherein the secondary coil is made of 50mm copper core plastic covered wire.

7. A welding and charging apparatus as claimed in claim 1, wherein the input voltage at the primary side of the transformer is 380V or 220V.

8. An electric welding and charging dual-purpose machine as claimed in claim 1, wherein the output induced currents on the secondary side of said transformer are 40A, 70A, 100A and 200A respectively.