Motor cooling oil pipe

Abstract

The utility model discloses a motor cooling oil pipe. The motor cooling oil pipe comprises a pipe body. The left end and the right end of the pipe body are each provided with a plug support. An oil duct connecting pipe is further arranged on the pipe wall of the pipe body, and the oil duct connecting pipe is communicated with an inner cavity of the pipe body; the plug support is provided with an installation through hole and a plug used for plugging the pipe end of the pipe body. The utility model has the advantages of simple structure and simple manufacturing process.

Description

Technical Field

[0001] This utility model relates to the field of oil pipe technology for electric motors in new energy vehicles, and in particular to an electric motor cooling oil pipe. Background Technology

[0002] As a component in new energy vehicles, motor cooling oil pipes are usually fixed to the motor housing using mounting brackets to enhance the connection strength between the motor cooling oil pipes and the motor housing.

[0003] In existing motor cooling oil pipe structures, there is generally a pipe body, with plugs welded to both ends for sealing the pipe openings. The mounting bracket is welded to the outer wall of the pipe body. During installation, bolt assemblies and other connecting components are used to secure the mounting bracket to the motor housing.

[0004] In the existing structure of motor cooling oil pipes, the mounting bracket and the pipe plug are separate units. During manufacturing, the mounting bracket and the pipe plug need to be connected to the pipe body in two separate processes. Furthermore, the mounting bracket generally needs to be connected to a predetermined position on the pipe body, requiring precise positioning of both during processing.

[0005] The manufacturing process of the motor cooling oil pipes under the above structure is relatively complex and not economical or efficient. Utility Model Content

[0006] The purpose of this invention is to provide a motor cooling oil pipe, solving the technical problem that the manufacturing process of existing motor cooling oil pipe structures is relatively complex. This invention has a simple structure and lower cost.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A motor cooling oil pipe includes a pipe body; each of the left and right ends of the pipe body is provided with a plug bracket; the pipe wall of the pipe body is also provided with an oil passage connector, which communicates with the inner cavity of the pipe body.

[0009] The plug bracket is provided with an installation through hole and a plug for sealing the end of the pipe body.

[0010] Furthermore, the plug bracket is an integral connector.

[0011] Furthermore, the plug bracket includes vertically distributed plug sections and bracket sections; the plug is disposed on the plug section, and the mounting through hole is disposed on the bracket section.

[0012] Furthermore, the tube body is arc-shaped.

[0013] Furthermore, the inner diameter of the pipe body is the same as the inner diameter of the oil passage connector.

[0014] Furthermore, the end of the oil passage connector is provided with a saddle-shaped skirt, which is connected to the pipe body.

[0015] Furthermore, the plug protrudes towards the side of the pipe body and has a hollow barrel-shaped structure.

[0016] Furthermore, the plug is brazed to the pipe body.

[0017] Compared with the prior art, the present invention provides a motor cooling oil pipe, which has the following beneficial effects:

[0018] In this invention, the functions of the mounting bracket and the plug are integrated into a single plug bracket. The position of the mounting bracket has been moved from the body of the cooling oil pipe to the end of the pipe. With this design, the manufacturing process is relatively streamlined.

[0019] In addition, the plug has a hollow barrel-shaped structure, which reduces the weight of the motor cooling oil pipe. Attached Figure Description

[0020] Figure 1 This is a perspective view of the motor cooling oil pipe in this utility model.

[0021] Figure 2 This is a partial cross-sectional view of the motor cooling oil pipe in this utility model.

[0022] Figure 3 This is a schematic diagram of the connection structure between the tube body and the plug bracket of this utility model.

[0023] Figure 4 This utility model is a three-dimensional end cap bracket. Figure 1 .

[0024] Figure 5 This utility model is a three-dimensional end cap bracket. Figure 2 .

[0025] Figure 6 This is a side view of the end cap bracket in this utility model.

[0026] In the picture:

[0027] 10-Pipe body, 11-Oil hole, 20-Oil passage connector, 21-Saddle-shaped skirt, 31-Bracket section, 311-Installation through hole, 32-Plug section, 321-Plug, 322-Inner recessed groove. Detailed Implementation

[0028] 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.

[0029] like Figure 1-6 As shown, this utility model provides a motor cooling oil pipe, which includes a pipe body 10; each of the left and right ends of the pipe body 10 is provided with a plug bracket; the pipe wall of the pipe body 10 is also provided with an oil passage connector 20, which communicates with the inner cavity of the pipe body 10; each plug bracket is provided with an installation through hole 311 and a plug 321, which is used to seal the pipe end of the pipe body 10.

[0030] The pipe body 10 has several oil holes 11 on its body; one end of the oil passage connector 20 is connected to the pipe wall of the pipe body 10, and the oil passage connector 20 is connected to the inner cavity of the pipe body 10. In use, hydraulic oil or lubricating oil enters the inner cavity of the pipe body 10 through the oil passage connector 20.

[0031] In this embodiment, the tube body 10 is a hollow circular tube, which is an arc-shaped curved tube. Furthermore, a plug bracket is connected to each end of the tube body 10, and the plug 321 on the plug bracket protrudes towards one side of the tube body 10, such as... Figure 2 As shown.

[0032] Specifically, such as Figure 2 and Figure 4 As shown, the plug bracket is an integral connector and can be a one-piece stamped part. The plug bracket includes a vertically distributed plug section 32 and a bracket section 31; the plug 321 is disposed on the plug section 32, and the mounting through hole 311 is disposed on the bracket section 31.

[0033] In this embodiment, the plug 321 is generally in the shape of a hollow barrel, such as... Figure 2 , 3 As shown, the hollow barrel-shaped plug 321 has an internal recessed groove 322, and the barrel-shaped plug 321 protrudes towards the tube body 10. The outer diameter of the plug 321 matches the inner diameter of the tube body 10, and the plug 321 makes an insertable annular contact after being inserted into the tube body 10, as shown. Figure 2 As shown. Compared to a solid plug machined from a metal rod, the plug 321 in this embodiment is lighter, and after being sealed at the end of the pipe body 10, the overall weight of the motor cooling oil pipe formed is also lighter.

[0034] Meanwhile, during the manufacturing process, after the plug 321 seals the end of the pipe body 10, we can use brazing to weld the plug 321 to the end of the pipe body 10, thus achieving a seal and connection between the plug 321 and the pipe body 10. Since the welding point is located at the joint between the plug 321 and the pipe body 10, during the brazing process, because the gap between the outer wall of the plug 321 and the inner wall of the pipe body 10 is small, some excess liquid solder will seep from the welding point into the space between the outer wall of the plug 321 and the inner wall of the pipe body 10, without causing a large amount of excess solder to accumulate on the outer wall of the end of the pipe body 10.

[0035] In this embodiment, the functions of the mounting bracket and the plug are integrated into a single plug bracket. The position of the mounting bracket has been moved from the body of the cooling oil pipe (i.e., the pipe body 10) to the pipe end. With this structure, only the plug bracket needs to be connected to the pipe end for sealing; this simultaneously achieves the connection between the mounting bracket and the plug to the pipe body, resulting in fewer manufacturing steps.

[0036] Preferably, in this embodiment, a saddle-shaped skirt 21 is also fixedly connected to the upper end of the oil passage connector 20. The concave surface of the saddle-shaped skirt 21 is tightly fitted to the wall of the pipe body 10, and the saddle-shaped skirt 21 is welded to the pipe body 10. Welding the saddle-shaped skirt 21 to the pipe body 10 achieves a larger contact area between them. A larger contact area usually results in a longer weld seam. An increased weld seam length means that more metal is involved in the connection, and the connection structure between the saddle-shaped skirt 21 and the pipe body 10 will be more stable after welding. When the motor is running at high speed, the connection between the saddle-shaped skirt 21 and the pipe body 10 is stable, with no risk of detachment or leakage, thereby reducing the risk of the oil passage connector 20 detaching.

[0037] In this embodiment, the inner diameter of the pipe body 10 and the inner diameter of the oil passage connector 20 are the same.

Claims

1. An electric machine cooling oil gallery characterized by: The pipe body is provided with a plug support on each of the left and right pipe ends, and an oil passage connector on the pipe wall of the pipe body, which is communicated with the inner cavity of the pipe body; The plug support is provided with a mounting through hole and a plug for plugging the pipe end of the pipe body.

2. A motor cooling tube according to claim 1, characterized in that: The plug support is an integral connecting piece.

3. An electric machine cooling tube as claimed in claim 2, characterised in that: The plug support comprises a plug section and a support section arranged vertically, the plug is arranged on the plug section, and the mounting through hole is arranged on the support section.

4. An electric machine cooling tube as claimed in claim 3, characterised in that: The pipe body is in the shape of a circular arc.

5. A motor cooling tube according to claim 4, wherein: The inner diameter of the pipe body is the same as that of the oil passage connector.

6. An electric machine cooling tube as claimed in claim 5, characterised in that: The pipe end of the oil passage connector is provided with a saddle-shaped skirt, which is connected with the pipe body.

7. A motor cooling tube according to any one of claims 1 to 6, wherein: The plug is protruded towards the side of the pipe body and is in the shape of a hollow barrel.

8. A motor cooling tube according to any one of claims 1 to 6, wherein: The plug is connected with the pipe body by brazing.

Images