Oil cooler assembly oil pipe and oil chamber welding cooperation sealing structure

Abstract

The utility model discloses an oil cooler assembly oil pipe and oil room welding cooperation sealing structure belongs to oil cooler welding sealing field. It mainly includes oil cooler, and the oil cooler includes oil room no.

Description

Technical Field

[0001] This utility model belongs to the field of oil cooler welding and sealing, and more specifically, it relates to a sealing structure for welding and fitting oil pipes and oil chambers in an oil cooler assembly. Background Technology

[0002] The main function of an automatic transmission cooling system is to keep the transmission within a reasonable operating temperature range, preventing overheating or overcooling, thereby ensuring the normal operation of the transmission and extending its service life.

[0003] As a crucial component of the transmission cooling system, the reliability and durability of the oil cooler directly impact the transmission's lifespan, vehicle safety, and user experience.

[0004] Traditional air-cooled oil coolers are made of aluminum and are welded together using a brazing process. The oil pipe and the oil chamber are connected by an oil chamber plug. However, the contact area between the oil inlet pipe and the oil chamber plug is small, which makes it easy for poor welding to occur during the production process. This results in the oil cooler not being able to keep up with the seal, requiring workers to perform secondary welding, which reduces production efficiency. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a welded sealing structure for the oil pipe and oil chamber of an oil cooler assembly. By setting a pipe joint, the oil cooler and the oil inlet pipe can be connected without additional modifications to the oil cooler interface and the oil inlet pipe, thus enabling the welding and fixing of oil inlet pipes and oil cooler interfaces of various diameters.

[0006] The oil cooler assembly includes a welded and sealed structure for oil pipes and oil chambers, comprising an oil cooler, an oil chamber 1 and an oil chamber 2, with multiple sets of cores fixedly connected between the two chambers. Heat sinks are fixedly mounted on the cores. Fixing brackets are fixedly connected to the outer walls of both the oil chambers, and buffer sleeves are mounted on the fixing brackets. An oil outlet pipe is fixedly connected to the top side wall of the oil chamber 1, and a pipe connector is fixedly connected to the bottom of the oil chamber 2. The pipe connector includes an upper connector and a lower connector. An oil inlet pipe is fixedly connected to the bottom of the pipe connector, and a connecting plate is fixedly connected to the oil inlet pipe. The other end of the connecting plate is fixedly connected to the core. Pipe end caps are fixedly connected to the top and bottom of the oil chamber 1, and a pipe end cap is fixedly connected to the bottom of the oil chamber 2.

[0007] Preferably, the oil outlet pipe is fixedly provided with a pipe edge, which is welded to the oil chamber.

[0008] Preferably, a chamfer one is fixedly opened on the inner wall of the bottom of the second oil chamber, and a chamfer two is fixedly opened on the inner wall of the top of the oil inlet pipe.

[0009] Preferably, the upper joint is provided with upper step three, upper step two and upper step one in sequence from top to bottom, and the lower joint is provided with lower step one, lower step two and lower step three in sequence from top to bottom. A positioning protrusion is fixedly provided on the inner side of each set of steps, and chamfer one and chamfer two are both matched with the positioning protrusion. A welding molten pool groove is fixedly opened on the outer side of each step.

[0010] Preferably, multiple sets of spot welding protrusions are fixedly provided on the welding molten pool.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting pipe fittings, the oil cooler and the oil inlet pipe can be connected without making additional modifications to the oil cooler interface and the oil inlet pipe, thus enabling the welding and fixing of oil inlet pipes and oil cooler interfaces of various different diameters. 2. By setting chamfer one and chamfer two, which cooperate with the positioning protrusion, when the oil inlet pipe and oil chamber two are inserted with the pipe fitting, chamfer one and chamfer two fit with the positioning edge, so that the pipe fitting can be precisely connected with the oil inlet pipe and oil chamber two, avoiding radial offset and ensuring the accuracy of the welding posture. 3. By setting up a welding molten pool, the welding solution can be contained during welding operations, ensuring full weld formation, guiding solution flow, optimizing sealing effect, and ensuring the stability of welding between the pipe joint and the bottom of the oil chamber, and between the pipe joint and the oil inlet pipe. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connection structure between the oil outlet pipe and oil chamber one; Figure 3 This is a schematic diagram of the fit between oil chamber two and the oil inlet pipe; Figure 4 This is a schematic diagram of the structure of oil chamber 2, oil inlet pipe, and pipe fittings; Figure 5 This is a schematic diagram of the pipe fitting structure; Figure 6 for Figure 5 Enlarged view of the structure at point A in the middle.

[0013] In the diagram, 1. Oil cooler; 101. Core; 102. Heat sink; 103. Oil chamber one; 104. Oil chamber two; 104A. Chamfer one; 2. Fixing bracket; 3. Buffer sleeve; 4. Oil outlet pipe; 401. Pipe edge; 5. Oil inlet pipe; 501. Chamfer two; 6. Pipe joint; 601. Upper joint; 601A. Upper step one; 601B. Upper step two; 601C. Upper step three; 602. Lower joint; 602A. Lower step one; 602B. Lower step two; 602C. Lower step three; 603. Positioning protrusion; 604. Welding molten pool groove; 605. Spot welding protrusion; 7. Pipe end cap; 8. Connecting plate. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings: The directional terms used in the detailed description paragraphs are only for the convenience of those skilled in the art to understand the technical solutions described in this application based on the visual orientation shown in the accompanying drawings. Unless otherwise expressly specified and limited, the terms "setting," "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0015] like Figure 1 , Figure 2 and Figure 3 As shown, an oil cooler assembly has a welded and sealed structure for oil pipes and oil chambers. The assembly includes an oil cooler 1, which comprises an oil chamber 103 and an oil chamber 104. Multiple sets of cores 101 are fixedly connected between the oil chambers 103 and 104. Each core 101 has a rectangular cross-section and is a square, hollow tube, allowing oil in the oil chamber 104 to flow into the oil chamber 103. Heat sinks 102 are welded and fixed between the two sets of cores 101. The heat sinks 102 are bent into a wavy shape to dissipate heat from the cores 101 into the air. The oil enters the oil chamber 104 from the inlet pipe 5, passes through the cores 101 into the oil chamber 103, and exits from the outlet pipe 4 at the top of the oil chamber 103. During the passage through the cores 101, the heat sinks 102 cool the oil.

[0016] Both oil chamber 103 and oil chamber 2 104 are fixedly connected to the outer walls of a mounting bracket 2. A buffer sleeve 3 is installed on the mounting bracket 2. The buffer sleeve 3 is preferably made of nitrile rubber, which has excellent oil resistance, good elasticity and wear resistance, and moderate cost. The mounting bracket 2 has four sets; two sets are fixedly connected to oil chamber 103, and the other two sets are fixedly connected to oil chamber 2 104. It is connected to the vehicle body via bolts. The buffer sleeve 3 can effectively reduce the impact of vehicle body vibration on the oil cooler 1. A fixed bracket is also installed on the top side wall of oil chamber 103. There is an oil outlet pipe 4, and a pipe connector 6 is fixedly connected to the bottom of the second oil chamber 104. By setting the pipe connector 6, the oil cooler 1 and the oil inlet pipe 5 can be connected without making additional modifications to the interface of the oil cooler 1 and the oil inlet pipe 5. This allows for the welding and fixing of various diameter oil inlet pipes 5 and the interface of the oil cooler 1. The pipe connector 6 includes an upper connector part 601 and a lower connector part 602. The upper connector part 601 is welded and fixed to the bottom interface of the second oil chamber 104, and the lower connector part 602 is welded and fixed to the inlet of the oil inlet pipe 5.

[0017] The bottom of the pipe joint 6 is fixedly connected to the oil inlet pipe 5, and the oil inlet pipe 5 is fixedly connected to the connecting plate 8. The other end of the connecting plate 8 is fixedly connected to the core 101. The oil inlet pipe 5 is relatively long, and the connecting plate 8 connects it to the core 101, providing additional support for the oil inlet pipe 5 and enhancing the stability of the oil inlet pipe 5 on the oil cooler 1. This reduces the load at the connection between the oil inlet pipe 5 and the second oil chamber 104, preventing stress concentration at this point from causing connection failure later. The top and bottom of the first oil chamber 103 are fixedly connected to the pipe end cap 7, which is welded to the oil cooler 1 to seal the opening ends of the first oil chamber 103 and the second oil chamber 104. The bottom of the second oil chamber 104 is fixedly connected to the pipe end cap 7.

[0018] An edge 401 is fixedly provided on the oil outlet pipe 4. The edge 401 is welded and fixed to the oil chamber 103. The edge 401 is in contact with the outer wall of the oil chamber 103, which increases the welding area between the oil outlet pipe 4 and the oil chamber 103 and improves the connection strength between the two.

[0019] like Figure 4 As shown, a chamfer 104A is fixedly provided on the inner wall of the bottom of oil chamber 2 104, and a chamfer 2 501 is fixedly provided on the inner wall of the top of oil inlet pipe 5. The inclination angles of chamfer 104A, chamfer 2 501, and positioning protrusion 603 are all 45 degrees. By setting chamfer 104A and chamfer 2 501, which cooperate with positioning protrusion 603, when oil inlet pipe 5, oil chamber 2 104, and pipe joint 6 are inserted together, chamfer 104A and chamfer 2 501 fit against the positioning edge, so that pipe joint 6 can be precisely connected with oil inlet pipe 5 and oil chamber 2 104, avoiding radial displacement and ensuring the accuracy of welding posture.

[0020] like Figure 5As shown, the upper connector 601 is provided with upper step three 601C, upper step two 601B and upper step one 601A from top to bottom. Upper step three 601C has the smallest diameter and upper step one 601A has the largest diameter. It can be adapted to the bottom interface of oil chamber two 104 of different sizes and is welded to the bottom of oil chamber two 104. The lower connector 602 is provided with lower step one 602A, lower step two 602B and lower step three 602C from top to bottom. Lower step one 602A has the largest diameter and lower step three 602C has the smallest diameter. It can be adapted to the oil inlet pipe 5 of different sizes and is welded to the oil inlet pipe 5.

[0021] Each set of steps has a fixed positioning flange 603 on its inner side. Chamfer 1 104A and chamfer 2 501 both mate with the positioning flange 603. Welding molten pool grooves 604 are fixedly opened on the outer side of each step. The cross-section of the welding molten pool groove 604 is a quarter-circle groove with a maximum depth of 2-3 mm. By setting the welding molten pool groove 604, the welding solution can be contained during welding operations, ensuring a full weld formation, guiding the flow of the solution, optimizing the sealing effect, and ensuring the stability of the welding between the pipe joint 6 and the bottom of the oil chamber 2 104, and between the pipe joint 6 and the oil inlet pipe 5.

[0022] like Figure 6 As shown, multiple sets of spot welding protrusions 605 are fixedly provided on the welding molten pool 604. Four sets of spot welding protrusions 605 are provided on each ring of the welding molten pool 604. The outward extension length of the spot welding protrusions 605 does not exceed the depth of the welding molten pool 604, which can ensure that when spot welding is followed by full welding, the welds of the two form a superimposed structure, thereby strengthening the weld bonding force.

[0023] By setting spot welding bumps 605, after the pipe joint 6, oil chamber 2 104 and oil inlet pipe 5 are placed in place, they are spot welded to ensure the welding accuracy of the subsequent full welding and improve the welding quality and effect.

[0024] This invention, by setting a pipe connector 6, allows for the connection between the oil cooler 1 and the oil inlet pipe 5 without requiring additional modifications to the interface of the oil cooler 1 and the oil inlet pipe 5. This enables the welding and fixing of oil inlet pipes 5 and the interface of the oil cooler 1 with various diameters. By setting chamfer one 104A and chamfer two 501, which cooperate with the positioning protrusion 603, when the oil inlet pipe 5 and the oil chamber two 104 are inserted together with the pipe connector 6, chamfer one 104A and chamfer two 501 fit snugly against the positioning edge, allowing the pipe connector 6 to precisely align with the oil inlet pipe 5 and the oil chamber two 104, avoiding radial offset and ensuring accurate welding posture. By setting a welding molten pool groove 604, the welding solution can be contained during the welding operation, ensuring full weld formation, guiding solution flow, optimizing sealing effect, and ensuring the stability of the welding between the pipe connector 6 and the bottom of the oil chamber two 104, and between the pipe connector 6 and the oil inlet pipe 5.

Claims

1. A sealing structure for welding and fitting oil pipes and oil chambers in an oil cooler assembly, comprising an oil cooler, characterized in that: The oil cooler includes an oil chamber 1 and an oil chamber 2. Multiple sets of cores are fixedly connected between oil chamber 1 and oil chamber 2. Heat sinks are fixedly installed on the cores. Fixing frames are fixedly connected to the outer walls of oil chamber 1 and oil chamber 2. Buffer sleeves are installed on the fixing frames. An oil outlet pipe is fixedly connected to the top side wall of oil chamber 1. A pipe joint is fixedly connected to the bottom of oil chamber 2. The pipe joint includes an upper joint and a lower joint. An oil inlet pipe is fixedly connected to the bottom of the pipe joint. A connecting plate is fixedly connected to the oil inlet pipe. The other end of the connecting plate is fixedly connected to the core. Pipe end caps are fixedly connected to the top and bottom of oil chamber 1. A pipe end cap is fixedly connected to the bottom of oil chamber 2.

2. The sealing structure for the welded fit between the oil pipe and the oil chamber in the oil cooler assembly according to claim 1, characterized in that: The oil outlet pipe is fixedly provided with a pipe edge, which is welded to the oil chamber.

3. The sealing structure for the welded fit between the oil pipe and the oil chamber in the oil cooler assembly according to claim 1, characterized in that: A chamfer one is fixedly opened on the inner wall at the bottom of the second oil chamber, and a chamfer two is fixedly opened on the inner wall at the top of the oil inlet pipe.

4. The sealing structure for the welded fit between the oil pipe and the oil chamber in the oil cooler assembly according to claim 1, characterized in that: The upper joint is provided with upper step three, upper step two and upper step one in sequence from top to bottom, and the lower joint is provided with lower step one, lower step two and lower step three in sequence from top to bottom. The inner side of each set of steps is fixedly provided with a positioning protrusion, and chamfer one and chamfer two are both matched with the positioning protrusion. Welding pool grooves are fixedly opened on the outer side of each step.

5. The sealing structure for the welded fit between the oil pipe and the oil chamber in the oil cooler assembly according to claim 4, characterized in that: Multiple sets of spot welding protrusions are fixedly provided on the welding molten pool.

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