Welding machine with novel dustproof and heat dissipation structure

Abstract

The utility model discloses a novel welding machine of dustproof heat dissipation structure, including the casing and water cooling device, the casing is divided into upper chamber, middle chamber and lower chamber through first baffle and second baffle in, is provided with control assembly in the upper chamber, is provided with cover in the middle chamber, and the cover of middle chamber is provided with amorphous transformer and electric reactor outward, is provided with air inlet and first air outlet on the middle chamber, is provided with radiating fan subassembly on the first air outlet, is provided with IGBT module and first water cooling radiator in the dustproof chamber of cover, the front end of lower chamber is provided with welding torch return water connector and welding torch water inlet connector, and the water outlet of water cooling device is connected with welding torch water inlet connector and the water inlet end of first water cooling radiator, and the water return port is connected with welding torch return water connector and the water outlet end of first water cooling radiator. The utility model makes IGBT module set up in the chamber alone, and radiates through the water cooling and air cooling combination mode, realizes the efficient dustproof heat dissipation of IGBT module, makes the welding machine operation stable and reliable and long life.

Description

Technical Field

[0001] This utility model relates to the field of welding machine technology, and in particular to a welding machine with a novel dustproof and heat dissipation structure. Background Technology

[0002] For high-performance, high-duration AC / DC TIG welding machines, the secondary inverter (IGBT) generates a lot of heat, requiring additional water cooling. However, due to structural limitations, the following problems exist:

[0003] 1. The water tank and welding machine are designed as separate units, requiring additional disassembly and reassembly, which makes them inconvenient to use and carry.

[0004] 2. The circuit modules are not classified and compartmentalized in the welding machine, which makes it easy for dust to accumulate on the high-heat IGBTs. This causes the IGBTs to be unable to dissipate heat evenly and become damaged, resulting in a high failure rate and short service life of the welding machine.

[0005] Therefore, in order to solve the above problems, it is necessary to develop a new type of welding machine with a dustproof and heat dissipation structure. The design adopts a multi-chamber heat dissipation and dustproof structure with a built-in water tank, so that the IGBT module is placed in a separate chamber and heats up through a combination of water cooling and air cooling. This achieves efficient dustproof and heat dissipation of the IGBT module, making the welding machine stable, reliable and long-lasting. Utility Model Content

[0006] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0007] A novel dustproof and heat dissipation structure for welding machines, comprising a housing and a water-cooling device, characterized in that:

[0008] The housing is divided into an upper chamber, a middle chamber, and a lower chamber by a first partition and a second partition.

[0009] The upper chamber is equipped with control components;

[0010] The middle cavity is provided with a cover connected to the second partition. An amorphous transformer and a reactor are provided outside the cover of the middle cavity. An air inlet and a first air outlet are provided opposite to each other on the left and right sides of the middle cavity.

[0011] A cooling fan assembly is installed on the first air outlet;

[0012] A dustproof chamber is formed inside the cover, and an IGBT module and a first water-cooled radiator connected to the IGBT module are installed inside the dustproof chamber.

[0013] The lower chamber is provided with a welding torch water return connector and a welding torch water inlet connector at the front end of the housing, and a second air outlet is provided at the rear end.

[0014] The outlet of the water cooling device is connected to the water inlet of the welding torch and the water inlet of the first water cooling radiator, and the return outlet is connected to the return water of the welding torch and the water outlet of the first water cooling radiator.

[0015] Preferably, the water cooling device includes a water tank, a circulating water pump, a second water-cooled radiator, and a cooling fan disposed in the lower chamber;

[0016] The outlet of the circulating water pump is connected to the inlet of the welding torch and the inlet of the first water-cooled radiator, respectively, and the inlet is connected to the water tank.

[0017] The inlet of the second water-cooled radiator is connected to the return water connector of the welding torch and the outlet of the first water-cooled radiator, and the outlet of the second water-cooled radiator is connected to the water tank.

[0018] One end of the second water-cooled radiator is close to the second air outlet, and the other end is connected to the cooling fan.

[0019] Preferably, a heat dissipation vent is provided on one side of the cover, and an exhaust fan is provided on the heat dissipation vent.

[0020] Preferably, the cooling fan assembly includes a cooling fan body, dustproof cotton, and a first dustproof cover;

[0021] A first dust cover and a cooling fan body are respectively provided on the outer and inner sides of the first air outlet, and a dustproof cotton is provided between the first air outlet and the first dust cover and the cooling fan body.

[0022] The first dust cover and cooling fan are connected to the casing.

[0023] Preferably, the first dust cover is provided with a plurality of downward-sloping exhaust grilles.

[0024] Preferably, a second dust cover is provided on the outer side of the second air outlet;

[0025] The second dust cover is provided with several downward-sloping exhaust grilles.

[0026] Preferably, the control component includes a drive board, a control board, and an auxiliary transformer for supplying power to the drive board and the control board.

[0027] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0028] 1. The water tank adopts a multi-chamber heat dissipation and dust prevention structure design, which puts the IGBT module in a separate chamber and dissipates heat through a combination of water cooling and air cooling, so as to achieve efficient dust prevention and heat dissipation of the IGBT module, making the welding machine run stably and reliably and with a long service life.

[0029] 2. The welding torch and IGBT module are cooled simultaneously by a water cooling device, achieving multi-functional water cooling.

[0030] 3. The built-in water tank design eliminates the need for wiring between the water tank and the welding machine, making it convenient to use and carry.

[0031] 4. By installing a cooling fan assembly consisting of a cooling fan body, dustproof cotton, and a first dustproof cover on the first air outlet, dust is prevented from entering the inner cavity of the casing, thus improving dustproof performance. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of this utility model;

[0033] The components include: casing 1, water cooling device 2, first partition 3, second partition 4, control assembly 5, cover 6, amorphous transformer 7, reactor 8, cooling fan assembly 9, IGBT module 11, first water cooling radiator 12, welding torch return water connector 13, welding torch inlet water connector 14, exhaust fan 15, second dust cover 16, water tank 21, circulating water pump 22, second water cooling radiator 23, cooling fan 24, drive board 51, control board 52, auxiliary transformer 53, heat dissipation port 61, cooling fan body 91, dustproof cotton 92, first dust cover 93, upper chamber 10, middle chamber 20, lower chamber 30, dustproof chamber 40, air inlet 201, first air outlet 202, and second air outlet 301. Detailed Implementation

[0034] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0035] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," "up," "down," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0038] like Figure 1 As shown, a novel dustproof and heat dissipation structure for welding machines includes a housing 1 and a water cooling device 2. The housing 1 is divided into an upper chamber 10, a middle chamber 20 and a lower chamber 30 by a first partition 3 and a second partition 4.

[0039] The upper chamber 10 is equipped with a control component 5;

[0040] The middle chamber 20 is provided with a cover 6 connected to the second partition 4. An amorphous transformer 7 and a reactor 8 are provided outside the cover 6 of the middle chamber 20. An air inlet 201 and a first air outlet 202 are provided opposite to each other on the left and right sides of the middle chamber 20.

[0041] A cooling fan assembly 9 is provided on the first air outlet 202;

[0042] The cover 6 forms a dustproof chamber 40, and the dustproof chamber 40 is equipped with an IGBT module 11 and a first water-cooled radiator 12 connected to the IGBT module 11.

[0043] The lower chamber 30 is provided with a welding torch water return connector 13 and a welding torch water inlet connector 14 at the front end of the housing 1, and a second air outlet 301 is provided at the rear end.

[0044] The outlet of the water cooling device 2 is connected to the water inlet connector 14 of the welding torch and the water inlet of the first water cooling radiator 12, and the return water outlet is connected to the water return connector 13 of the welding torch and the water outlet of the first water cooling radiator 12.

[0045] In this embodiment, the upper chamber 10 is relatively sealed to the middle chamber 20 and the lower chamber 30, and the dustproof chamber 40 is relatively sealed to the middle chamber 20; by separating the heating device and the non-heating device into separate chambers, the control component 5, IGBT module 11, reactor 8, amorphous transformer 7, and water cooling device 2 are respectively arranged in the upper chamber 10, the dustproof chamber 40, the middle chamber 20, and the lower chamber 30;

[0046] For control component 5, where heat generation is negligible, dust ingress is effectively prevented;

[0047] For reactors 8 and amorphous transformers 7 that generate heat and have strong high-temperature resistance, heat dissipation is achieved directly through cooling fans;

[0048] For the IGBT module 11, which generates a lot of heat and is greatly affected by dust, it is placed in an independent dustproof chamber 40 to reduce failures caused by dust, etc.; and it is connected to the first water-cooled radiator 12 through the water-cooling device 2 in the lower chamber 30. By water cooling the first water-cooled radiator 12, the temperature of the IGBT module 11 is reduced, achieving efficient dustproof heat dissipation, reducing the failure rate of the IGBT module 11, and making the welding machine operate stably and reliably with a long service life.

[0049] In this embodiment, the water cooling device 2 is separately located in the lower chamber 30, which can avoid mutual interference between the water cooling device 2 and the circuit components and improve reliability.

[0050] In this embodiment, the water cooling device 2 is connected to the first water cooling radiator 12 and the welding torch through a cooling circulation pipeline, and simultaneously cools the welding torch and the IGBT module 11 with water.

[0051] Furthermore, such as Figure 1 As shown, the water cooling device 2 includes a water tank 21 disposed in the lower chamber 30, a circulating water pump 22, a second water cooling radiator 23, and a cooling fan 24;

[0052] The outlet of the circulating water pump 22 is connected to the water inlet of the welding torch 14 and the water inlet of the first water-cooled radiator 12, respectively, and the water inlet is connected to the water tank 21.

[0053] The inlet of the second water-cooled radiator 23 is connected to the welding torch return water connector 13 and the outlet of the first water-cooled radiator 12, and the outlet of the second water-cooled radiator 23 is connected to the water tank 21.

[0054] One end of the second water-cooled radiator 23 is close to the second air outlet 301, and the other end is connected to the cooling fan 24.

[0055] In this embodiment, the circulating water pump 22 operates, pumping cold water simultaneously to the welding torch inlet connector 14 and the first water-cooled radiator 12. The hot water, after absorbing heat from the welding torch and the first water-cooled radiator 12, enters the second water-cooled radiator 23. At the same time, under the action of the cooling fan 24, the hot water exchanges heat in the second water-cooled radiator 23 to form cold water, which then enters the water tank 21. This cycle is repeated to achieve water cooling of the welding torch and the IGBT module 11.

[0056] In this embodiment, a built-in water tank 21 is adopted, which eliminates the need for wiring between the water tank 21 and the welding machine, making it convenient to use and carry.

[0057] Furthermore, such as Figure 1As shown, in order to improve the heat dissipation efficiency of the IGBT module 11 and accelerate the air flow in the dustproof chamber 40, a heat dissipation vent 61 is provided on one side of the cover 6, and an exhaust fan 15 is provided on the heat dissipation vent 61.

[0058] In this embodiment, since there is a certain gap at the connection between the cover 6 and the second partition 4, the air inlet 201 is formed through these small gaps, and an exhaust vent is opened. Under the action of the exhaust fan 15, the air in the dustproof chamber 40 can flow, which improves the heat dissipation effect without affecting the dustproof effect.

[0059] Furthermore, such as Figure 1 As shown, in order to further prevent dust from entering the inner cavity of the casing 1 and improve the dustproof performance, the cooling fan assembly 9 includes a cooling fan body 91, a dustproof cotton 92 and a first dustproof cover 93;

[0060] A first dust cover 93 and a cooling fan body 91 are respectively provided on the outer and inner sides of the first air outlet 202, and a dustproof cotton 92 is provided between the first dust cover 93 and the cooling fan body 91.

[0061] The first dust cover 93 and the cooling fan are connected to the casing 1.

[0062] Furthermore, such as Figure 1 As shown, in order to reduce the speed at which rainwater is drawn in and dust enters, the first dust cover 93 is provided with several downward-sloping exhaust grilles.

[0063] Furthermore, such as Figure 1 As shown, in order to reduce the speed at which rainwater is drawn in and dust enters, a second dust cover 16 is provided on the outside of the second air outlet 301;

[0064] The second dust cover 16 is provided with several downward-sloping exhaust grilles.

[0065] Furthermore, such as Figure 1 As shown, the control component 5 includes a drive board 51, a control board 52, and an auxiliary transformer 53 that supplies power to the drive board 51 and the control board 52.

[0066] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model patent.

Claims

1. A novel dustproof and heat dissipation structure for welding machines, comprising a housing and a water-cooling device, characterized in that: The housing is divided into an upper chamber, a middle chamber, and a lower chamber by a first partition and a second partition. The upper chamber is equipped with control components; The middle cavity is provided with a cover connected to the second partition. An amorphous transformer and a reactor are provided outside the cover of the middle cavity. An air inlet and a first air outlet are provided opposite to each other on the left and right sides of the middle cavity. A cooling fan assembly is installed on the first air outlet; A dustproof chamber is formed inside the cover, and an IGBT module and a first water-cooled radiator connected to the IGBT module are installed inside the dustproof chamber. The lower chamber is provided with a welding torch water return connector and a welding torch water inlet connector at the front end of the housing, and a second air outlet is provided at the rear end. The outlet of the water cooling device is connected to the water inlet of the welding torch and the water inlet of the first water cooling radiator, and the return outlet is connected to the return water of the welding torch and the water outlet of the first water cooling radiator.

2. The welding machine with a novel dustproof and heat dissipation structure according to claim 1, characterized in that, The water cooling device includes a water tank, a circulating water pump, a second water-cooled radiator, and a cooling fan, all located in the lower chamber. The outlet of the circulating water pump is connected to the inlet of the welding torch and the inlet of the first water-cooled radiator, respectively, and the inlet is connected to the water tank. The inlet of the second water-cooled radiator is connected to the return water connector of the welding torch and the outlet of the first water-cooled radiator, and the outlet of the second water-cooled radiator is connected to the water tank. One end of the second water-cooled radiator is close to the second air outlet, and the other end is connected to the cooling fan.

3. The welding machine with a novel dustproof and heat dissipation structure according to claim 1, characterized in that, A heat dissipation vent is provided on one side of the cover, and an exhaust fan is installed on the heat dissipation vent.

4. The welding machine with a novel dustproof and heat dissipation structure according to claim 1, characterized in that, The cooling fan assembly includes a cooling fan body, dustproof cotton, and a first dustproof cover; A first dust cover and a cooling fan body are respectively provided on the outer and inner sides of the first air outlet, and a dustproof cotton is provided between the first air outlet and the first dust cover and the cooling fan body. The first dust cover and cooling fan are connected to the casing.

5. The welding machine with a novel dustproof and heat dissipation structure according to claim 4, characterized in that, The first dust cover is provided with several downward-sloping exhaust grilles.

6. The welding machine with a novel dustproof and heat dissipation structure according to claim 2, characterized in that, A second dust cover is provided on the outside of the second air outlet; The second dust cover is provided with several downward-sloping exhaust grilles.

7. The welding machine with a novel dustproof and heat dissipation structure according to claim 1, characterized in that, The control components include a drive board, a control board, and an auxiliary transformer that supplies power to the drive board and the control board.

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