Heat dissipation structure for welding machine

Abstract

The utility model discloses a heat dissipation structure for a welding machine, which comprises a shell, a cooling pipeline for cooling liquid to circulate is arranged in the shell, the cooling pipeline comprises a plurality of U-shaped pipelines which are connected in a double-helix form in a staggered manner, and the cooling pipeline is connected with a plurality of heat dissipation plates which are uniformly arranged at intervals and used for dissipating heat in the cooling pipeline. The upper end of the cooling pipeline is connected with a first pipe connector, the lower end of the cooling pipeline is connected with a second pipe connector, supporting plates used for supporting are arranged below the first pipe connector and the second pipe connector, and a fan is arranged on the front side of the shell. The heat dissipation structure is simple in structure, ingenious in design, easy to machine and install, high in heat dissipation capacity and capable of being matched with welding gun operation of the welding machine, water cooling structures such as an external water pump and a water tank do not need to be connected, treatment of discharged hot water does not need to be considered, the use convenience of the welding machine can be effectively improved, the overall structural size of the welding machine can be reduced, and cost is reduced. The occupied area of the welding machine is reduced, and carrying is convenient.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology for welding machines, specifically a heat dissipation structure for welding machines. Background Technology

[0002] The welding torch is a high-heat welding component that requires cooling to ensure weld quality and extend the torch's lifespan. As is well known, there are two cooling methods in welding: air cooling and water cooling. Therefore, welding torches are also divided into air-cooled and water-cooled types. Users can choose the appropriate type of welding torch based on the welding task.

[0003] The cooling structure of a welding torch is either installed inside the welding machine or is a separate device, but each method has its own advantages and disadvantages. In actual welding work, because the welding torch task is constantly being adjusted, water-cooled welding machines are more common. However, existing water-cooled welding machines require a separate water pump and water tank for water supply. This structure undoubtedly increases the overall size of the welding machine, making it inconvenient to transport and use. Furthermore, the handling of the discharged hot water needs to be considered during use, increasing the preparation work before welding. All of these factors bring inconvenience to the use of the welding machine. Utility Model Content

[0004] The purpose of this invention is to provide a heat dissipation structure for welding machines to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat dissipation structure for a welding machine, comprising a housing, wherein a cooling pipe for the flow of cooling liquid is provided inside the housing, the cooling pipe comprising a plurality of U-shaped pipes interlaced in a double helix form, the cooling pipe being connected to a plurality of evenly spaced heat dissipation plates for heat dissipation within the cooling pipe, a first pipe joint being connected to the upper end of the cooling pipe, a second pipe joint being connected to the lower end of the cooling pipe, a support plate for support being provided below both the first and second pipe joints, and a fan being provided on the front side of the housing.

[0006] Further preferably, the housing includes a main body plate, which is L-shaped and has a side plate for installing cooling pipes at both its left and right ends, and the side plate has a plurality of third mounting holes for installing cooling pipes.

[0007] Further preferably, the main body plate includes a horizontally arranged upper cover plate and a vertically arranged front baffle plate, the upper cover plate and the front baffle plate forming an L-shaped structure, the front baffle plate is provided with a through hole for airflow, and a plurality of first mounting holes for fan installation are provided along the periphery of the through hole.

[0008] Further preferably, the rear end of the upper cover plate is provided with a downwardly inclined first bend, and the lower end of the front baffle is provided with a forward horizontal bend, the second bend being provided with a plurality of second mounting holes, and a first rivet nut being installed in the second mounting holes.

[0009] Further preferably, the upper cover plate is provided with first connecting holes on both the left and right sides for connecting to the side plates, and the front baffle is provided with second connecting holes on both the left and right sides for connecting to the side plates.

[0010] Further preferably, the front end of the side plate is provided with a third bend perpendicular to it, and the third bend is provided with a third connecting hole that mates with the second connecting hole; the rear end of the side plate is provided with a fourth bend symmetrically arranged with the third bend; the upper end of the side plate is provided with a fifth bend perpendicular to it, and the fifth bend is provided with a fourth connecting hole that mates with the first connecting hole.

[0011] Further preferably, the lower end of the side plate is provided with a sixth bend perpendicular to it, the sixth bend is provided with a plurality of fourth mounting holes, a second rivet nut is installed in the fourth mounting holes, and the side plate is provided with two fifth mounting holes for mounting the two support plates.

[0012] Further preferably, the heat sink is provided with a plurality of sixth mounting holes for cooling pipes to pass through, and the heat sink is provided with outwardly protruding flanges along the circumferential direction of the sixth mounting holes.

[0013] Further preferably, the thickness of the heat sink is 0.2 cm, and the distance between two adjacent heat sinks is 2.55 cm.

[0014] By adopting the above technical solution, rapid heat dissipation of the welding torch of the welding machine is achieved.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: The heat dissipation structure for welding machines, through several U-shaped pipes connected in a double-helix pattern, increases the contact area between the cooling pipes and the heat sink, as well as the duration of coolant flow through the heat sink, thereby increasing the heat dissipation area and duration, and improving heat dissipation capacity. The structure of the heat sink further enhances its heat dissipation capacity, and the fan further enhances this capacity. The shell, composed of two side plates of the L-shaped main body plate, facilitates heat dissipation, further improving heat dissipation capacity. The shell structure design... The structure is easy and secure to connect to the welding machine, and the housing has a simple structure that is easy to process and manufacture. The support plate structure supports the first and second pipe joints, ensuring the stability of the heat dissipation structure. The heat dissipation structure is simple in structure and ingenious in design, easy to process and install, and has strong heat dissipation capacity. It can be adapted to the welding gun operation of the welding machine, and does not require external water pumps, water tanks or other water cooling structures, nor does it require consideration of the treatment of discharged hot water. It can effectively improve the convenience of using the welding machine, reduce the overall structural volume of the welding machine, reduce the footprint of the welding machine, and facilitate transportation. Attached Figure Description

[0016] Figure 1 This is an isometric structural diagram of the heat dissipation structure disclosed in the embodiment of this utility model;

[0017] Figure 2 This is another isometric view of the heat dissipation structure disclosed in the embodiment of this utility model;

[0018] Figure 3 This is a front view schematic diagram of the heat dissipation structure disclosed in the embodiment of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the shell and support plate disclosed in the embodiments of this utility model;

[0020] Figure 5 This is a schematic diagram of the main body plate disclosed in the embodiment of this utility model;

[0021] Figure 6 This is a schematic diagram of the side plate structure disclosed in the embodiment of this utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the heat sink disclosed in the embodiment of this utility model.

[0023] In the diagram: 1. Shell; 11. Main body plate; 111. Top cover plate; 1111. First bend; 1112. First connecting hole; 112. Front baffle; 1121. Through hole; 1122. First mounting hole; 1123. Second connecting hole; 1124. Second bend; 1125. Second mounting hole; 12. Side plate; 121. Third mounting hole; 122. Third bend; 123. Fourth bend; 124. Third connecting hole; 125. Fifth bend; 126. Fourth connecting hole; 127. Sixth bend; 128. Fourth mounting hole; 129. Fifth mounting hole; 13. First rivet nut; 14. Second rivet nut; 2. Cooling pipe; 3. Heat sink plate; 31. Sixth mounting hole; 32. Flange; 4. First pipe joint; 5. Second pipe joint; 6. Support plate; 61. Fifth connecting hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-3 As shown, this utility model provides a technical solution: a heat dissipation structure for a welding machine, including a housing 1, a cooling pipe 2 for the flow of cooling liquid inside the housing 1, the cooling pipe 2 including a number of U-shaped pipes connected in a double spiral pattern, the cooling pipe 2 being connected to a number of evenly spaced heat dissipation plates 3 for heat dissipation within the cooling pipe 2, a first pipe joint 4 being connected to the upper end of the cooling pipe 2, a second pipe joint 5 being connected to the lower end of the cooling pipe 2, a support plate 6 for support being provided below both the first pipe joint 4 and the second pipe joint 5, and a fan 7 being provided on the front side of the housing 1.

[0026] In this design, the heat dissipation structure is used to dissipate heat from the welding torch of the welding machine. Installed inside the welding machine, this structure removes heat from the torch, ensuring weld quality and extending the torch's lifespan. Specifically, the housing 1 houses the cooling pipes 2, which provide cooling liquid to the torch. This cooling liquid carries away heat from the torch and transfers it to the heat dissipation structure. The heat sink 3 rapidly dissipates heat from the cooling pipes 2, achieving the heat dissipation function. The fan 7 further accelerates heat dissipation from the heat sink 3 and the cooling pipes 2, improving heat dissipation capacity.

[0027] The first pipe connector 4 and the second pipe connector 5 are both used to connect to the welding torch. One connector is used to introduce coolant into the welding torch, while the other connector is used to allow the coolant, which has absorbed heat, to flow out of the welding torch and into the heat dissipation structure. The heat sink 3 and the fan 7 are both used to dissipate heat from the cooling pipe 2. The heat sink 3 is in direct contact with the cooling pipe 2. Through several heat sinks 3, the heat inside the cooling pipe 2 can be quickly absorbed and dissipated into the air. Then, through the rotation of the fan 7, cool air can be blown onto the heat sink 3 and the cooling pipe 2 to accelerate heat dissipation. At the same time, the fan 7 can blow away the heat dissipated into the air by the heat sink 3, thereby improving the heat dissipation capacity.

[0028] In this design, the cooling pipes 2 are interconnected in a double-helix U-shape, which increases the contact area between the cooling pipes 2 and the heat sink 3, as well as the time the coolant spends flowing through the heat sink 3, thereby increasing the heat dissipation area and duration, and ultimately improving the heat dissipation capacity. Simultaneously, the staggered spiral arrangement of the pipes forms a continuous spiral path, forcing the coolant within the cooling pipes 2 to turbulent flow, improving heat exchange efficiency. The frequent changes in flow direction of the coolant within the staggered pipes prevent excessively fast or slow flow rates in certain areas, eliminating "hot and cold blind zones." By dispersing the coolant flow path, regional temperature differences are reduced, preventing localized overheating or overcooling. Furthermore, the pipe routing breaks away from traditional parallel or symmetrical arrangements, increasing the diversity of fluid paths.

[0029] Please refer to Figure 4 As shown, in one embodiment of this application, the housing 1 includes a main body plate 11, which is L-shaped and has a side plate 12 for installing the cooling pipe 2 at both its left and right ends. The side plate 12 has a plurality of third mounting holes 121 for installing the cooling pipe 2.

[0030] In this design, the housing 1 includes an L-shaped main body plate 11 and two side plates 12, making the rear and bottom sides of the housing 1 open structures. This allows the rear and bottom sides of the heat sink 3 to directly contact the air, facilitating rapid heat dissipation from the heat sink 3 and improving heat dissipation capacity. It also allows the front fan 7 to blow airflow backward, accelerating heat dissipation. The third mounting hole 121 on the side plate 12 is used for the passage and fixing of the cooling pipe 2, enabling the installation of the cooling pipe 2.

[0031] Please refer to Figure 5 As shown, based on the above scheme, the main body plate 11 includes a horizontally arranged upper cover plate 111 and a vertically arranged front baffle plate 112. The upper cover plate 111 and the front baffle plate 112 form an L-shaped structure. The front baffle plate 112 is provided with a through hole 1121 for airflow, and a number of first mounting holes 1122 for fan 7 are provided around the through hole 1121.

[0032] The upper cover plate 111 protects the cooling pipes 2 and the heat sink 3 from dust. The front baffle 112 protects the front of the cooling pipes 2 and the heat sink 3 and is used for the installation of the fan 7. The fan 7 is installed on the front baffle 112 by bolts passing through the first mounting hole 1122 and engaging with the holes on the fan 7. The through hole 1121 allows airflow generated by the fan 7 to pass through, thereby blowing away heat from the cooling pipes 2, the heat sink 3, and the air between the heat sink 3.

[0033] Please refer to Figure 4 , Figure 5 As shown, based on the above scheme, the rear end of the upper cover plate 111 is provided with a downwardly inclined first bending part 1111, and the lower end of the front baffle 112 is provided with a forward horizontal bending part 1124. The second bending part 1124 is provided with a plurality of second mounting holes 1125, and a first rivet nut 13 is installed in the second mounting hole 1125.

[0034] The first bend 1111 slopes downwards, providing partial coverage of the cooling pipes 2 and heat sink 3 below the upper cover 111, while also dispersing stress, improving bending resistance, and enhancing aesthetics. The second bend 1124 provides support and facilitates connection. It connects to the welding machine via the second mounting hole 1125 and uses the first rivet nut 13 for easy installation from one side. This makes installation more convenient, prevents loosening, ensures long-term stability, resists vibration and fatigue, and guarantees a more secure and stable installation of the heat dissipation structure on the welding machine, adapting to the welding machine's working environment.

[0035] Please refer to Figure 5 As shown, based on the above scheme, the upper cover plate 111 has first connecting holes 1112 on both the left and right sides that are connected to the side plate 12, and the front baffle 112 has second connecting holes 1123 on both the left and right sides that are connected to the side plate 12.

[0036] The first connecting hole 1112 is used to connect the upper cover plate 111 to the side plate 12, which can be achieved by passing a rivet or bolt through the first connecting hole 1112. The second connecting hole 1123 is used to connect the front baffle 112 to the side plate 12, which can be achieved by passing a rivet or bolt through the second connecting hole 1123.

[0037] Please refer to Figure 6As shown, based on the above scheme, the front end of the side plate 12 is provided with a third bend 122 perpendicular to it, and the third bend 122 is provided with a third connecting hole 124 that cooperates with the second connecting hole 1123. The rear end of the side plate 12 is provided with a fourth bend 123 that is symmetrically arranged with the third bend 122. The upper end of the side plate 12 is provided with a fifth bend 125 perpendicular to it, and the fifth bend 125 is provided with a fourth connecting hole 126 that cooperates with the first connecting hole 1112.

[0038] The third bend 122 and the fourth bend 123 form a U-shaped structure with the side plate 12, which is inserted into the side of the main body plate 11. This ensures the connection strength between the side plate 12 and the main body plate 11, while also improving the support for the main body plate 11 and enhancing the structural stability of the shell 1. The third connecting hole 124 engages with the second connecting hole 1123, facilitating the connection of the front baffle 112 and the third bend 122 together with bolts or rivets. The fifth bend 125 supports the upper cover plate 111 and engages with the first connecting hole 1112 through the fourth connecting hole 126. The fifth bend 125 and the upper cover plate 111 can be fixed together with bolts or rivets.

[0039] Please continue to refer to Figure 6 As shown, based on the above scheme, the lower end of the side plate 12 is provided with a sixth bend 127 perpendicular to it, the sixth bend 127 is provided with a number of fourth mounting holes 128, the fourth mounting holes 128 are installed with second rivet nuts 14, and the side plate 12 is provided with two fifth mounting holes 129 for mounting the two support plates 6.

[0040] The sixth bend 127 serves as a support and connection to the welding machine, ensuring the installation stability of the heat dissipation structure. The connection to the welding machine is achieved through the second rivet nut 14 installed in the fourth mounting hole 128 on the sixth bend 127, facilitating installation from one side, making installation easier, and providing anti-loosening and long-term stability. It is also vibration-resistant and fatigue-resistant, ensuring a more secure and stable installation of the heat dissipation structure on the welding machine, adapting to the welding machine's working environment. The fifth mounting hole 129 is used for the installation and positioning of the support plate 6. The support plate 6 is installed and positioned by inserting one end into the fifth mounting hole 129, and is fixed relative to the side plate 12 by welding.

[0041] Please refer to Figure 7 As shown, in one embodiment of this application, the heat sink 3 is provided with a plurality of sixth mounting holes 31 for the cooling pipe 2 to pass through, and the heat sink 3 is provided with an outwardly protruding flange 32 along the circumferential direction of the sixth mounting holes 31.

[0042] In this design, the cooling pipe 2 can be installed relative to the heat sink 3 by providing a sixth mounting hole 31 on the heat sink 3. The design of the flange 32 can first increase the strength of the sixth mounting hole 31 to prevent deformation, and at the same time, it can better support the cooling pipe 2, and increase the contact area with the cooling pipe 2, thereby improving the heat dissipation capacity of the heat sink 3 for the cooling pipe 2.

[0043] Based on the above scheme, preferably, the thickness of the heat sink 3 is 0.2 cm, and the spacing between two adjacent heat sinks 3 is 2.55 cm. The relatively thin design of the heat sink 3 reduces thermal resistance, improves heat transfer efficiency, and has a low heat capacity, allowing for faster response to temperature changes, making it suitable for dynamic heat dissipation scenarios; it also reduces the material cost of the heat sink 3. The 2.55 cm spacing between two adjacent heat sinks 3 reduces the narrow channels between them, allowing for smoother airflow and avoiding excessive pressure drop caused by overly narrow channels. Furthermore, the sufficient space between the heat sinks 3 reduces the risk of frictional damage caused by thermal expansion or external impacts.

[0044] Please refer to Figure 4 As shown, in one embodiment of this application, both the first pipe connector 4 and the second pipe connector 5 are L-shaped structures, and the support plate 6 is an L-shaped structure with at least one fifth connecting hole 61 at its bend.

[0045] In this design, the structural design of the first pipe structure 4 and the second pipe connector 5 facilitates pipe connection. The support plate 6 adopts a contour-following structure to ensure effective support for the first pipe connector 4 and the second pipe connector 5. A fifth connecting hole 61 is provided at the bend of the support plate 6 to facilitate the connection of tie rods or bolts with the welding machine, ensuring stable installation of the support plate 6.

Claims

1. A heat dissipation structure for a welding machine, comprising a housing (1), wherein a cooling pipe (2) for the flow of cooling liquid is provided inside the housing (1), characterized in that: The cooling pipe (2) includes several U-shaped pipes that are intertwined in a double helix form. The cooling pipe (2) is connected to several heat dissipation plates (3) that are evenly spaced for heat dissipation within the cooling pipe (2). The upper end of the cooling pipe (2) is connected to a first pipe joint (4), and the lower end of the cooling pipe (2) is connected to a second pipe joint (5). Support plates (6) for support are provided below the first pipe joint (4) and the second pipe joint (5). A fan (7) is provided on the front side of the housing (1).

2. The heat dissipation structure for a welding machine according to claim 1, characterized in that: The housing (1) includes a main plate (11), which is L-shaped and has a side plate (12) for installing the cooling pipe (2) at both its left and right ends. The side plate (12) has several third mounting holes (121) for installing the cooling pipe (2).

3. The heat dissipation structure for a welding machine according to claim 2, characterized in that: The main body plate (11) includes a horizontally arranged upper cover plate (111) and a vertically arranged front baffle plate (112). The upper cover plate (111) and the front baffle plate (112) form an L-shaped structure. The front baffle plate (112) is provided with a through hole (1121) for airflow. Along the periphery of the through hole (1121) are a number of first mounting holes (1122) for installing the fan (7).

4. A heat dissipation structure for a welding machine according to claim 3, characterized in that: The upper cover plate (111) has a downwardly inclined first bend (1111) at its rear end, and the lower end of the front baffle (112) has a forward horizontal bend (1124). The second bend (1124) has a plurality of second mounting holes (1125), and a first rivet nut (13) is installed in the second mounting hole (1125).

5. A heat dissipation structure for a welding machine according to claim 3, characterized in that: The upper cover plate (111) has a first connecting hole (1112) on both the left and right sides that connects to the side plate (12), and the front baffle (112) has a second connecting hole (1123) on both the left and right sides that connects to the side plate (12).

6. A heat dissipation structure for a welding machine according to claim 5, characterized in that: The front end of the side plate (12) is provided with a third bend (122) perpendicular to it, and the third bend (122) is provided with a third connecting hole (124) that cooperates with the second connecting hole (1123). The rear end of the side plate (12) is provided with a fourth bend (123) symmetrically arranged with the third bend (122). The upper end of the side plate (12) is provided with a fifth bend (125) perpendicular to it, and the fifth bend (125) is provided with a fourth connecting hole (126) that cooperates with the first connecting hole (1112).

7. A heat dissipation structure for a welding machine according to claim 2, characterized in that: The lower end of the side plate (12) is provided with a sixth bend (127) perpendicular to it. The sixth bend (127) is provided with a plurality of fourth mounting holes (128). A second rivet nut (14) is installed in the fourth mounting hole (128). The side plate (12) is provided with two fifth mounting holes (129) for mounting two support plates (6).

8. A heat dissipation structure for a welding machine according to claim 1, characterized in that: The heat sink (3) is provided with a plurality of sixth mounting holes (31) through which the cooling pipe (2) passes, and the heat sink (3) is provided with an outwardly protruding flange (32) along the circumferential direction of the sixth mounting holes (31).

9. A heat dissipation structure for a welding machine according to claim 8, characterized in that: The thickness of the heat sink (3) is 0.2 cm, and the distance between two adjacent heat sinks (3) is 2.55 cm.

10. A heat dissipation structure for a welding machine according to claim 1, characterized in that: The first pipe joint (4) and the second pipe joint (5) are both L-shaped structures, and the support plate (6) is an L-shaped structure with at least one fifth connecting hole (61) at its bend.

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