A high-efficiency heat dissipation mechanism for a welding machine

Abstract

The utility model provides a kind of high-efficiency heat dissipation mechanism for welding machine, comprising: welding machine body;Fixedly installed in the heat dissipation fan of welding machine body interior;Two U-shaped heat-conducting plates are fixedly installed in the heat dissipation fan air outlet end front side of welding machine body interior;Multiple front section heat dissipation fins are fixedly installed in the inner wall of U-shaped heat-conducting plate and close to the side of heat dissipation fan;Heat-conducting column is fixedly installed between the upper and lower sides of the inner wall of U-shaped heat-conducting plate. By power mechanism drive two sides of rear section heat dissipation fin relative rotation, the air duct in the middle of two U-shaped heat-conducting plates can have the trend of gradually narrowing, so that air speed and air pressure will not be significantly reduced after air enters the air duct, the rear section heat dissipation fin can maintain higher contact air pressure, so the rear section heat dissipation fin can also play the effect of heat dissipation, avoid the situation that the heat dissipation of rear section heat dissipation fin is not good due to gradually reduced air pressure, effectively improve the heat dissipation effect and efficiency of welding machine body.

Description

Technical Field

[0001] This utility model relates to the field of welding machine technology, and specifically to a high-efficiency heat dissipation mechanism for welding machines. Background Technology

[0002] Welding machines are electrical appliances that provide power with certain characteristics for welding. Welding is widely used in various industrial fields, such as aerospace, shipbuilding, automobiles, and containers, due to its advantages of flexibility, simplicity, convenience, strength and reliability, and the fact that the welded material can even have the same strength as the base material.

[0003] A known authorized patent with publication number CN222740610U discloses a high-efficiency heat dissipation device for welding machines. Its background art addresses the problem that "after prolonged use of a dust filter, the mesh on the surface of the dust filter becomes clogged, not only reducing the filtration effect on dust but also affecting the efficiency of internal and external air exchange, thereby reducing the heat dissipation effect and efficiency of the device." To address this problem, the technical solution is as follows: "It includes a welding machine body, with a heat dissipation mechanism inside the welding machine body; a dustproof mechanism is provided on the outer wall of the welding machine body; the dustproof mechanism includes a filter screen, and a heat dissipation hole is formed through the inner wall of the welding machine body. A fixing plate is fixedly installed at the bottom of the heat dissipation hole, and a first connecting plate is fixedly installed at the top of the fixing plate. A rotating shaft is laterally rotatably installed on the outer wall of the first connecting plate, and the rotating shaft is fixedly connected to the middle area of ​​the filter screen."

[0004] However, in implementing the relevant technologies, the following problems were found in the existing technical solutions: Current welding machines usually use a cooling fan in conjunction with heat sinks for heat dissipation. By setting two heat sinks in parallel and placing the fan at one end of the heat sink, air is introduced into the air duct between the two heat sinks. However, the air velocity and air pressure blown out by the existing air-cooling structure will gradually decrease. Specifically, the air velocity and air pressure are greater closer to the inlet end of the air duct, and the contact with the front section of the heat sink is good. The air pressure is lower closer to the outlet end, and the contact pressure with the rear section of the heat sink is insufficient. This easily causes the performance of the rear section of the heat sink to be not fully utilized, and the heat dissipation performance is not as good as that of the front section, thus resulting in a reduction in heat dissipation effect and efficiency. Utility Model Content

[0005] This invention proposes a high-efficiency heat dissipation mechanism for welding machines, which solves the problem in the existing air-cooling structure where the air velocity and air pressure gradually decrease, easily causing the heat dissipation performance of the rear section of the heat sink to be inferior to that of the front section.

[0006] The technical solution of this utility model is as follows: a high-efficiency heat dissipation mechanism for a welding machine, comprising: a welding machine body;

[0007] A cooling fan that is fixedly installed inside the welding machine body;

[0008] Two U-shaped heat-conducting plates are fixedly installed inside the welding machine body and located in front of the air outlet of the cooling fan.

[0009] Multiple front-end heat dissipation fins are fixedly installed on the inner wall of the U-shaped heat conduction plate and close to the side of the cooling fan;

[0010] A heat-conducting column fixedly installed between the upper and lower sides of the inner wall of the U-shaped heat-conducting plate;

[0011] Rotate and connect multiple rear heat dissipation fins to the surface of the heat-conducting pillar;

[0012] A connecting rod that runs through multiple rear heat dissipation fins;

[0013] And a power mechanism mounted on two U-shaped heat-conducting plates to drive the rear heat dissipation fins on both sides to rotate relative to each other.

[0014] Preferably, the power mechanism includes a fixed block fixedly installed on one side of the U-shaped heat-conducting plate, a bidirectional lead screw rotatably connected between the two fixed blocks, two sliders threadedly connected to the surface of the bidirectional lead screw, a movable connecting rod hinged to one side of the slider, and a motor fixedly installed on one side of a fixed block. The two movable connecting rods are rotatably connected to the connecting rods on both sides respectively, and the output end of the motor moves through the fixed block and is connected to the bidirectional lead screw.

[0015] Preferably, a heat-conducting pad is fixedly installed on one side of each of the two U-shaped heat-conducting plates. The heat-conducting pad is in contact with the heating device inside the welding machine body. An air inlet is provided on the rear side of the welding machine body, and a filter screen is fixedly installed inside the air inlet.

[0016] Preferably, the welding machine body is provided with a cleaning mechanism to prevent the filter screen from becoming clogged.

[0017] The cleaning mechanism includes a protective cover fixedly installed on the rear side of the welding machine body, two limiting rods fixedly installed on the bottom wall of the inner side of the protective cover, a movable plate slidably connected to the surface of the limiting rods, a spring sleeved on the surface of the limiting rods, a connecting plate fixedly connected to the bottom of the movable plate, a cleaning brush fixedly installed at the bottom of the connecting plate, and a transmission component provided inside the protective cover for moving the movable plate. The surface of the protective cover has multiple air inlets.

[0018] The transmission component includes a transmission rod that is rotatably connected through the rear side of the welding machine body, a pulley assembly located between one end of the transmission rod and the cooling fan, and a cam that is fixedly connected to the other end of the transmission rod.

[0019] Preferably, a rubber pad is fixedly installed on the top of the movable plate, and a discharge groove is provided at the bottom of the protective cover.

[0020] The working principle and beneficial effects of this utility model are as follows:

[0021] Air is blown into the welding machine body by a cooling fan, and the air flows through the air duct between the two U-shaped heat conduction plates, blowing on the front and rear heat dissipation fins for heat dissipation. During the process, the power mechanism drives the rear heat dissipation fins on both sides to rotate relative to each other, so that the air duct between the two U-shaped heat conduction plates gradually narrows. This ensures that the air speed and air pressure do not decrease significantly after the air enters the air duct, maintaining a high contact air pressure on the rear heat dissipation fins. Therefore, the rear heat dissipation fins can also play a heat dissipation role, avoiding the situation where the air pressure gradually decreases and the heat dissipation of the rear heat dissipation fins is not effective. This effectively improves the heat dissipation effect and efficiency of the welding machine body. Attached Figure Description

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0024] Figure 2 This is a side view of the three-dimensional structure of the present invention;

[0025] Figure 3 This is a cross-sectional three-dimensional structural diagram of the welding machine body of this utility model;

[0026] Figure 4 This is a partial three-dimensional structural diagram of the U-shaped heat-conducting plate of this utility model;

[0027] Figure 5 This utility model Figure 4 Enlarged 3D structural diagram at point A;

[0028] Figure 6 This is a partial three-dimensional structural diagram of the protective cover of this utility model;

[0029] In the diagram: 1. Welding machine body; 2. Cooling fan; 3. U-shaped heat-conducting plate; 4. Front heat dissipation fins; 5. Heat-conducting column; 6. Rear heat dissipation fins; 7. Connecting rod; 8. Two-way lead screw; 9. Slider; 10. Movable connecting rod; 11. Motor; 12. Filter screen; 13. Heat-conducting pad; 14. Protective cover; 15. Limiting rod; 16. Moving plate; 17. Spring; 18. Connecting plate; 19. Cleaning brush; 20. Transmission rod; 21. Pulley assembly; 22. Cam. Detailed Implementation

[0030] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0031] Example 1

[0032] Please see Figure 1 - Figure 6 The present invention provides a high-efficiency heat dissipation mechanism for a welding machine, comprising: a welding machine body 1;

[0033] A cooling fan 2 is fixedly installed inside the welding machine body 1;

[0034] Two U-shaped heat-conducting plates 3 are fixedly installed inside the welding machine body 1 and located in front of the air outlet of the cooling fan 2;

[0035] Multiple front heat dissipation fins 4 are fixedly installed on the inner wall of the U-shaped heat conduction plate 3 and on the side close to the heat dissipation fan 2;

[0036] The heat-conducting column 5 is fixedly installed between the upper and lower sides of the inner wall of the U-shaped heat-conducting plate 3;

[0037] Rotate multiple rear heat dissipation fins 6 connected to the surface of the heat-conducting pillar 5;

[0038] A connecting rod 7 is installed through multiple rear heat dissipation fins 6;

[0039] And a power mechanism mounted on two U-shaped heat-conducting plates 3 for driving the rear heat dissipation fins 6 on both sides to rotate relative to each other.

[0040] The technical solution provided in this embodiment is as follows: During use, the heating element inside the welding machine body 1 transfers heat to the U-shaped heat-conducting plate 3, and then transfers the heat to the front heat dissipation fins 4 and the rear heat dissipation fins 6 via the U-shaped heat-conducting plate 3 and the heat-conducting column 5. At the same time, the cooling fan 2 blows air into the welding machine body 1, so that the air blows through the air channel between the two U-shaped heat-conducting plates 3, and blows air onto the front heat dissipation fins 4 and the rear heat dissipation fins 6, thereby performing heat dissipation treatment. During the air blowing heat dissipation process, the power mechanism drives the rear heat dissipation fins 6 on both sides to rotate relative to each other around the heat-conducting column 5, so that the air channel between the two U-shaped heat-conducting plates 3 has a gradually narrowing tendency. This ensures that the air speed and air pressure do not decrease significantly after the air enters the air channel, and maintains a high contact air pressure for the rear heat dissipation fins 6. Therefore, the rear heat dissipation fins 6 can also play a heat dissipation role, avoiding the situation where the air pressure gradually decreases and the heat dissipation of the rear heat dissipation fins 6 is not good. This effectively improves the heat dissipation effect and efficiency of the welding machine body 1.

[0041] Furthermore, the power mechanism includes a fixed block fixedly installed on one side of the U-shaped heat-conducting plate 3, a bidirectional lead screw 8 rotatably connected between the two fixed blocks, two sliders 9 threadedly connected to the surface of the bidirectional lead screw 8, a movable connecting rod 10 hinged to one side of the slider 9, and a motor 11 fixedly installed on one side of a fixed block. The two movable connecting rods 10 are rotatably connected to the connecting rods 7 on both sides respectively, and the output end of the motor 11 moves through the fixed block and is connected to the bidirectional lead screw 8.

[0042] Specifically, the motor 11 drives the bidirectional lead screw 8 to rotate. During rotation, the two sliders 9 move closer or further apart along the surface of the bidirectional lead screw 8 under the connection and limitation of the movable connecting rod 10 and the connecting rod 7. This causes the movable connecting rod 10 and the connecting rod 7 to rotate relative to the sliders 9. As a result, the movable connecting rod 10 and the connecting rod 7 drive the rear heat dissipation fins 6 on both sides to rotate relative to each other along the heat conduction column 5. This allows for adjustment of the angle between the rear heat dissipation fins 6 on both sides, changing the narrow width of the middle air duct of the two U-shaped heat conduction plates 3. This facilitates adjustment according to requirements and improves the flexibility of use.

[0043] Furthermore, a heat-conducting pad 13 is fixedly installed on one side of each of the two U-shaped heat-conducting plates 3. The heat-conducting pad 13 is in contact with the heating device inside the welding machine body 1. An air inlet slot is opened on the rear side of the welding machine body 1, and a filter screen 12 is fixedly installed inside the air inlet slot.

[0044] Specifically, by setting the heat-conducting pad 13, the heat of the heating device can be transferred to the U-shaped heat-conducting plate 3, and then transferred to the front heat dissipation fins 4 and the rear heat dissipation fins 6 through the U-shaped heat-conducting plate 3 and the heat-conducting column 5. At the same time, the cooling fan 2 blows air to dissipate heat from the front heat dissipation fins 4 and the rear heat dissipation fins 6. When the cooling fan 2 blows air, the outside air enters the welding machine body 1 after being filtered by the filter screen 12, and is discharged through the air outlet on the welding machine body 1, thereby achieving the function of blowing air to dissipate heat from the welding machine body 1.

[0045] Example 2

[0046] Based on Embodiment 1, in this embodiment: the welding machine body 1 is provided with a cleaning mechanism to prevent the filter screen 12 from becoming clogged.

[0047] The cleaning mechanism includes a protective cover 14 fixedly installed on the rear side of the welding machine body 1, two limiting rods 15 fixedly installed on the bottom wall of the inner side of the protective cover 14, a movable plate 16 slidably connected to the surface of the limiting rods 15, a spring 17 sleeved on the surface of the limiting rods 15, a connecting plate 18 fixedly connected to the bottom of the movable plate 16, a cleaning brush 19 fixedly installed at the bottom of the connecting plate 18, and a transmission component provided inside the protective cover 14 for moving the movable plate 16. The surface of the protective cover 14 is provided with multiple air inlets.

[0048] The transmission components include a transmission rod 20 that is rotatably connected to the rear side of the welding machine body 1, a pulley assembly 21 located between one end of the transmission rod 20 and the cooling fan 2, and a cam 22 fixedly connected to the other end of the transmission rod 20. The pulley assembly 21 includes a pulley 1 mounted on the end of the transmission rod 20, a pulley 2 mounted on the surface of the output shaft of the cooling fan 2, and a transmission belt tensioned between the surfaces of pulley 1 and pulley 2.

[0049] The technical solution provided in this embodiment is as follows: When the cooling fan 2 blows air, it can drive the transmission rod 20 to rotate through the pulley assembly 21, so that the cam 22 rotates intermittently and contacts the moving plate 16, thereby squeezing the moving plate 16 to move intermittently downward along the surface of the limiting rod 15 to compress the spring 17, and drive the cleaning brush 19 to move intermittently downward through the connecting plate 18. In conjunction with the elastic force of the spring 17, the cleaning brush 19 can move up and down repeatedly to clean the filter screen 12, so as to avoid the accumulation of dust and impurities that clog the filter screen 12 and affect the ventilation of the filter screen 12, which is conducive to ensuring the heat dissipation effect inside the welding machine body 1.

[0050] Furthermore, a rubber pad is fixedly installed on the top of the movable plate 16, and a discharge groove is provided at the bottom of the protective cover 14.

[0051] Specifically, by setting rubber pads, the contact and collision force between the cam 22 and the moving plate 16 can be reduced, preventing damage to the moving plate 16 and reducing noise. By setting discharge grooves, it is easy to discharge the dust and impurities cleaned by the filter screen 12.

[0052] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A high-efficiency heat dissipation mechanism for a welding machine, characterized in that, include: Welding machine body (1); A cooling fan (2) is fixedly installed inside the welding machine body (1); Two U-shaped heat-conducting plates (3) are fixedly installed inside the welding machine body (1) and located in front of the air outlet of the cooling fan (2); Multiple front heat dissipation fins (4) are fixedly installed on the inner wall of the U-shaped heat conduction plate (3) and close to the side of the heat dissipation fan (2). Heat-conducting columns (5) are fixedly installed between the upper and lower sides of the inner wall of the U-shaped heat-conducting plate (3); Rotate multiple rear heat dissipation fins (6) connected to the surface of the heat-conducting column (5); A connecting rod (7) is installed through multiple rear heat dissipation fins (6); And a power mechanism provided on two U-shaped heat conduction plates (3) for driving the rear heat dissipation fins (6) on both sides to rotate relative to each other.

2. The high-efficiency heat dissipation mechanism for a welding machine according to claim 1, characterized in that, The power mechanism includes a fixed block fixedly installed on one side of the U-shaped heat-conducting plate (3), a bidirectional lead screw (8) rotatably connected between the two fixed blocks, two sliders (9) threadedly connected to the surface of the bidirectional lead screw (8), a movable connecting rod (10) hinged to one side of the slider (9), and a motor (11) fixedly installed on one side of a fixed block. The two movable connecting rods (10) are rotatably connected to the connecting rods (7) on both sides respectively. The output end of the motor (11) moves through the fixed block and is connected to the bidirectional lead screw (8).

3. The high-efficiency heat dissipation mechanism for a welding machine according to claim 1, characterized in that, A heat-conducting pad (13) is fixedly installed on one side of each of the two U-shaped heat-conducting plates (3). The heat-conducting pad (13) is in contact with the heating device inside the welding machine body (1). An air inlet is provided on the rear side of the welding machine body (1). A filter screen (12) is fixedly installed inside the air inlet.

4. The high-efficiency heat dissipation mechanism for a welding machine according to claim 3, characterized in that, The welding machine body (1) is equipped with a cleaning mechanism to prevent the filter screen (12) from becoming clogged.

5. A high-efficiency heat dissipation mechanism for a welding machine according to claim 4, characterized in that, The cleaning mechanism includes a protective cover (14) fixedly installed on the rear side of the welding machine body (1), two limiting rods (15) fixedly installed on the bottom wall of the inner side of the protective cover (14), a movable plate (16) slidably connected to the surface of the limiting rods (15), a spring (17) sleeved on the surface of the limiting rods (15), a connecting plate (18) fixedly connected to the bottom of the movable plate (16), a cleaning brush (19) fixedly installed at the bottom of the connecting plate (18), and a transmission component provided inside the protective cover (14) for moving the movable plate (16). The surface of the protective cover (14) is provided with multiple air inlets.

6. A high-efficiency heat dissipation mechanism for a welding machine according to claim 5, characterized in that, The transmission component includes a transmission rod (20) that is rotatably connected to the rear side of the welding machine body (1), a pulley assembly (21) located between one end of the transmission rod (20) and the cooling fan (2), and a cam (22) fixedly connected to the other end of the transmission rod (20).

7. A high-efficiency heat dissipation mechanism for a welding machine according to claim 5, characterized in that, A rubber pad is fixedly installed on the top of the movable plate (16), and a discharge groove is provided at the bottom of the protective cover (14).

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