CN207888106U - Electric welding machine - Google Patents

Abstract

The utility model discloses an electric welding machine, which comprises a case, and a power transformation device is arranged in the case. Heat-absorbing fins are arranged on the inner side of the case, and heat-dissipating fins are arranged on the outer side of the radiator. In the flow channel, a heat dissipation fan is arranged at one end of the cover body, the wind blown by the heat dissipation fan flows along the air flow channel, and the ends of the heat dissipation fins are inclined along the air flow direction in the air flow channel. The electric welding machine can dissipate the heat in the chassis relatively quickly.

Description

welding machine

technical field

The utility model relates to a welding device, in particular to an electric welding machine.

Background technique

According to statistics, more than half of the world's steel production is made into steel products by welding technology, which is realized by welding equipment. The electric welding machine will generate a lot of heat when it is working, and most of the input electric power is converted into the heat generated by the power device inside the fuselage. In order to ensure that the power device works within the allowable temperature range, it is necessary to take heat dissipation measures for the power device to force cooling. The current general heat dissipation method is to use forced convection of air: the power device is installed on the aluminum heat sink, the heat of the power device is first transferred to the aluminum heat sink, and then the heat is blown out of the casing by fan exhaust. However, the efficiency of this method is low, and at the same time, the internal space of the electric welding machine is relatively large, and the dust and the like from the outside will also be brought into the electric welding machine.

Utility model content

Aiming at the deficiencies in the prior art, the purpose of this utility model is to provide an electric welding machine, which can better overcome the above-mentioned technical problems.

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: an electric welding machine, including a casing, and a transformer device is arranged in the casing, and the feature is that: a radiator is also arranged in the casing, and a The installation opening for radiator installation, the inner surface of the radiator facing the inside of the chassis is provided with heat-absorbing fins, the outer surface of the radiator is provided with cooling fins, the cooling fins are located on the outside of the chassis and are vertically arranged, and the outside of the chassis is provided with The cover body forms an air flow channel between the cover body and the chassis. A cooling fan is arranged at one end of the cover body. The wind blown by the cooling fan flows along the air flow channel.

Through the above technical scheme, heat absorbing fins and heat dissipation fins are arranged on the radiator, and the heat absorbing fins are located inside the chassis, which can absorb the heat in the chassis, so that the heat in the chassis is transferred to the outside of the radiator through the radiator On the heat dissipation fins on the surface, the heat dissipation fins are located in the air passage. When the heat dissipation fan blows into the air passage, the flowing air will take away the heat on the heat dissipation fins, so that the heat in the chassis will be taken out. At the same time, because the ends of the cooling fins are inclined along the airflow direction in the air flow channel, the cooling fins will not block the flow of air flow in the air flow channel, and each cooling fin can be in contact with the air flow in the air flow channel. And because the cross-sectional area of the air flow channel is small, the air flow velocity in the air flow channel is relatively fast, and the air flow at the opening at the upper end of the air flow channel will flow into the air flow channel, thereby further increasing the air flow in the air flow channel, thereby speeding up the cooling of the cooling fins. The heat dissipation rate of the chip.

Preferably, the lower end of the cover is provided with a water storage chamber, the outer side of the cooling fins is covered with water-absorbing cloth, and the lower end of the water-absorbing cloth is located in the water storage chamber.

Through the above technical solution, the arrangement of the water storage chamber and the water-absorbing cloth can better increase the heat dissipation speed of the heat dissipation sheet. When the electric welding machine is working, the heat on the cooling fins will be transferred to the water-absorbing cloth more evenly, so that the temperature on the surface of the water-absorbing cloth will rise. Wet the entire absorbent cloth, when the water on the absorbent cloth evaporates, it will absorb a lot of heat, so that the welding machine can be cooled.

Preferably, the lower end of the water-absorbing cloth is covered with a rubber ring, and the top of the water storage chamber is provided with a mounting hole, and the outer surface of the rubber ring is stuck on the mounting hole.

Through the above technical scheme, the lower end of the absorbent cloth is covered with a rubber ring, the absorbent cloth is located in the inner ring of the rubber ring and is tightened by the rubber ring, the outer surface of the rubber ring is stuck on the installation hole, and the rubber ring and the installation hole are interference fit, There is a better sealing effect between the two, so as to prevent the water in the water storage chamber from leaking out during use.

Preferably, the surface of the heat dissipation fins is provided with a plurality of ventilation holes.

Through the above technical solution, the setting of the ventilation hole can make the airflow more easily enter between the two heat dissipation fins, so that the air there can also circulate relatively quickly, thereby further promoting the heat dissipation of the heat dissipation fins.

Preferably, a chute is provided on the heat dissipation fin, and a block is slidably fitted on the chute, and the end of the absorbent cloth is bonded to the block.

Through the above technical solution, the water-absorbing cloth can be better fixed to the block, so that it can be more conveniently fixed on the cooling fins.

Description of drawings

Fig. 1 is the structural representation of the transverse section of embodiment;

Fig. 2 is the structural representation of embodiment longitudinal section;

Fig. 3 is the enlarged view of place A in Fig. 1;

FIG. 4 is an enlarged view at B in FIG. 2 .

Reference signs: 1. Chassis; 2. Power transformation device; 3. Cover body; 4. Radiator; 5. Air flow channel; 6. Cooling fan; 7. Rubber ring; 8. Water-absorbing cloth; 41. Heat-absorbing fin 42, cooling fins; 43, air vents; 44, blocks; 31, water storage cavity.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described with specific embodiment.

As shown in Fig. 1 and Fig. 2, an electric welding machine includes a case 1, which is formed by bending an iron plate, and a power transformation device 2 is arranged in the case 1. A radiator 4 is also arranged in the chassis 1, and a mounting opening for the radiator 4 is installed on the chassis 1. The radiator 4 is fixed on the mounting opening by screws. The radiator 4 is formed by integral die-casting of aluminum, and the radiator 4 faces the chassis. 1 is provided with heat-absorbing fins 41 on the inner surface, and the heat-absorbing fins 41 are arranged horizontally. The outer surface of the radiator 4 is provided with heat-dissipating fins 42. The heat-dissipating fins 42 are located outside the chassis 1 and are vertically arranged. A cover body 3 is arranged outside the case 1, and the cover body 3 surrounds the rear end and the left and right sides of the case 1. An air flow channel 5 is formed between the cover body 3 and the outer wall of the case 1, and the outlet of the air flow channel 5 is set at the front end of the electric welding machine sides. The upper end of the air flow channel 5 at the rear end of the case 1 is closed, and the upper ends of the air flow channels 5 on both sides of the case 1 are opened. The rear end of the cover body 3 is provided with a cooling fan 6, and the wind blown by the cooling fan 6 flows along the air channel 5, and then is discharged from the outlet at the front end of the electric welding machine. The ends of the cooling fins 42 are inclined along the airflow direction in the air passage 5 . The radiator 4 is provided with heat-absorbing fins 41 and heat-dissipating fins 42. The heat-absorbing fins 41 are located inside the chassis 1 and can absorb the heat in the chassis 1 so that the heat in the chassis 1 can be transferred to the On the radiating fins 42 on the outer surface of the radiator 4, the radiating fins 42 are in the air flow channel 5. When the cooling fan 6 blows air in the air flow channel 5, the flowing air will dissipate the heat on the radiating fins 42. Take away, so that the heat in the chassis 1 is taken out. Simultaneously because radiating fin 42 ends are inclined along the airflow direction in the air flow channel 5, thereby radiating fin 42 can not block the air flow in the air flow channel 5, and each radiating fin 42 can be connected with the air flow channel 5 inside the airflow into contact. And because the cross-sectional area of the air flow channel 5 is less, the air flow velocity in the air flow channel 5 is faster, so that the air pressure in the air flow channel 5 is smaller than the air outside the air, and the air flow at the upper opening of the air flow channel 5 will flow toward the air. flow in the flow channel 5 , thereby further increasing the air flow in the air flow channel 5 , thereby accelerating the heat dissipation speed of the cooling fins 42 .

The lower end of the cover body 3 is provided with a water storage chamber 31 , and the outside of the cooling fins 42 is covered with a water-absorbing cloth 8 , and the lower end of the water-absorbing cloth 8 is located in the water storage chamber 31 . The setting of the water storage chamber 31 and the water-absorbing cloth 8 can better increase the heat dissipation speed of the heat dissipation sheet. When the electric welding machine is working, the heat on the cooling fins 42 will be transferred to the water-absorbing cloth 8 more evenly, so that the temperature on the surface of the water-absorbing cloth 8 will rise. The water can wet the whole water-absorbing cloth 8 by capillary action, so when the moisture on the water-absorbing cloth 8 evaporates, a large amount of heat can be sucked away, thereby the electric welding machine can be cooled.

As shown in Figure 4, the lower end of the water-absorbing cloth 8 is covered with a rubber ring 7, and the top of the water storage chamber 31 is provided with a mounting hole, and the outer surface of the rubber ring 7 is stuck on the mounting hole. The lower end of the water-absorbing cloth 8 is covered with a rubber ring 7, and the water-absorbing cloth 8 is located in the inner ring of the rubber ring 7 and is tightened by the rubber ring 7, so that the water in the water storage chamber 31 will not directly flow out from the rubber ring 7 and can only pass through the capillary. The phenomenon oozes. The outer surface of the rubber ring 7 is stuck on the installation hole, and the interference fit between the rubber ring 7 and the installation hole has a better sealing effect between the two, thereby preventing the water in the water storage chamber 31 from leaking from the rubber ring during use. Leak between the ring 7 and the water storage cavity 31 mounting holes.

A plurality of ventilation holes 43 are provided on the surface of the cooling fins 42 . The setting of the ventilation hole 43 can make the air flow enter between the two heat dissipation fins 42 more easily, so that the air there can also circulate faster, thereby further promoting the heat dissipation of the heat dissipation fins 42 . As shown in FIG. 3 , a chute is provided on the cooling fin 42 , and a block 44 is slidably fitted on the chute, and the end of the water-absorbing cloth 8 is bonded to the block 44 . In this way, the water-absorbing cloth 8 can be better fixed to the block 44 , so that it can be fixed on the cooling fin 42 more conveniently.

The foregoing embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore: all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered by this utility model. within the scope of protection of utility models.

Claims (5)

1. a kind of electric welding machine, including cabinet, it is provided with transformation device in cabinet, it is characterized in that：It is additionally provided in the cabinet scattered Hot device is provided with the installing port installed for radiator on cabinet, and the medial surface of radiator towards cabinet inside is provided with heat absorption fins Piece is provided with radiating fin on radiator lateral surface, and radiating fin is on the outside of cabinet and is vertically arranged, and is provided on the outside of cabinet Cover body forms air flow channel between cover body and cabinet, cover body one end is provided with radiator fan, and the wind of radiator fan blowout is along sky Flow channel flows, and airflow direction of the radiating fin end in air flow channel tilts.

2. electric welding machine according to claim 1, it is characterized in that：The cover body lower end is provided with water storage cavity, outside radiating fin Side is coated with absorbent cloth, and absorbent cloth lower end is in water storage cavity.

3. electric welding machine according to claim 2, it is characterized in that：The absorbent cloth lower end is arranged with rubber ring, water storage cavity top Portion is provided with mounting hole, and rubber ring outer surface is stuck on mounting hole.

4. electric welding machine according to claim 3, it is characterized in that：The cooling fin surfaces are provided with multiple ventilation holes.

5. electric welding machine according to claim 2, it is characterized in that：It is provided with sliding slot on the radiating fin, is slided on sliding slot It is combined with fixture block, absorbent cloth end is bonded on fixture block.