An integrated die-cast oil-cooled motor housing

Abstract

This utility model relates to the field of motor housing technology, specifically a one-piece die-cast oil-cooled motor housing. It includes a one-piece die-cast housing body, a reinforcing ring fixedly connected to the outer surface of the housing body, and a junction box integrally die-cast on the outer surface of the reinforcing ring. A heat dissipation fin assembly is provided at the connection between the reinforcing ring and the junction box, and several terminal blocks are provided inside the junction box. The advantages of this utility model are: the reinforcing ring and junction box on the outer surface of the housing body are integrally die-cast, eliminating the need for subsequent alignment and splicing, and saving steps such as bolt tightening; simultaneously, the mounting base, connecting plate, and other components on the outer surface of the reinforcing ring are also die-cast synchronously with the main body, reducing assembly steps. This design avoids connection gaps caused by splicing; the connection between the reinforcing ring and the junction box is naturally sealed through the integrated structure, and the tight connection of the heat dissipation fin assembly effectively improves the overall structural sealing performance and reduces the risk of cooling oil leakage.

Description

Technical Field

[0001] This utility model relates to the field of motor housing technology, and in particular to an integrated die-cast oil-cooled motor housing. Background Technology

[0002] The housing of an oil-cooled motor is a core structural component of the motor. It can be defined as a rigid casing, made using processes such as die casting, used to enclose and protect the motor's internal core components (such as the stator, rotor, and windings), while providing a flow channel for cooling oil. Specifically, it is typically machined from a single piece or in sections from metal materials (such as aluminum alloys or magnesium alloys). Internally, it has cavities designed to adapt to the motor's operation, while externally, flanges and heat dissipation structures are incorporated according to installation requirements. It is a crucial carrier for the motor to achieve mechanical protection, heat dissipation control, and system integration.

[0003] Currently, common oil-cooled motor housings have significant design and manufacturing defects, particularly in their mating structure with the wiring box. In existing technologies, the oil-cooled motor housing and wiring box are often produced using separate die-casting methods. That is, the housing body and wiring box are die-cast using independent molds, and then bolted together during assembly. This assembly process is cumbersome. The separately die-cast housing and wiring box require precise alignment during assembly, followed by individual tightening with multiple bolts. This not only increases assembly steps and labor costs but can also lead to gaps in the connection due to misalignment, affecting the overall structural seal. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this utility model is to provide an integrated die-cast oil-cooled motor housing to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.

[0006] To achieve the above objectives, one embodiment of this utility model provides an integrated die-cast oil-cooled motor housing, comprising an integrated die-cast housing body, a reinforcing ring fixedly connected to the outer surface of the housing body, a junction box integrally die-cast on the outer surface of the reinforcing ring, a heat dissipation fin assembly at the connection between the reinforcing ring and the junction box, a plurality of terminal blocks inside the junction box, the terminal blocks being distributed along the length direction of the junction box, a plurality of ventilation holes being opened on one side of the reinforcing ring, the extension direction of the ventilation holes being consistent with the length direction of the heat dissipation fin assembly, and two symmetrically arranged mounting bases integrally die-cast on the outer surface of the reinforcing ring, the two mounting bases being symmetrically arranged about the junction box.

[0007] Preferably, in any of the above schemes, the outer surface of the reinforcing ring is integrally die-cast with two linear array connecting plates, and the left and right ends of the connecting plates are respectively fixedly connected to two mounting bases.

[0008] Preferably, one side of the outer casing is fixedly connected to a connecting flange, and a plurality of circumferentially arrayed reinforcing ribs are fixedly connected between the connecting flange and the outer casing on the side of the connecting flange near the junction box.

[0009] Preferably, in any of the above embodiments, the outer surface of the reinforcing ring is integrally die-cast with two linear array of blocking rings, and the front and rear ends of the heat dissipation fin assembly are respectively fixedly connected to the two blocking rings.

[0010] Preferably, as described in any of the above embodiments, the mounting base has mounting holes that penetrate the upper and lower surfaces of the mounting base, and the side of the mounting base away from the reinforcing ring has anti-slip texture.

[0011] Preferably, in any of the above embodiments, the outer surface of the reinforcing ring is integrally die-cast with two symmetrically arranged reinforcing plates, the junction box is located between the two reinforcing plates, and each reinforcing plate is fixedly connected to a lifting lug on the side away from the junction box.

[0012] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows: 1. The reinforcing ring on the outer surface of the housing is integrally die-cast with the junction box, eliminating the need for post-assembly alignment and bolt tightening. Simultaneously, the mounting base and connecting plate on the outer surface of the reinforcing ring are also die-cast synchronously with the main body, reducing assembly steps. This design avoids gaps caused by splicing; the connection between the reinforcing ring and the junction box is naturally sealed through an integrated structure. Combined with the tight connection of the heat dissipation fins, this effectively improves the overall structural sealing and reduces the risk of coolant leakage.

[0013] 2. Our design improves this situation by optimizing heat dissipation and reinforcing the structure. The heat dissipation fins at the connection between the reinforcing ring and the junction box, along with the ventilation holes extending in the same direction, create an orderly airflow channel, accelerating heat dissipation. The reinforcing ribs between the connecting flange and the housing body, as well as the retaining ring on the outer surface of the reinforcing ring, enhance the overall rigidity of the housing and aid in heat dissipation through metal conduction. Furthermore, the reinforcing plates on both sides of the junction box further enhance the structural strength of the wiring area, while the lifting lugs facilitate the handling and installation of the housing. The overall design significantly improves the stability and durability of the housing under complex operating conditions while ensuring efficient heat dissipation. Attached Figure Description

[0014] Figure 1 This is a first-view structural diagram of the assembly of this utility model; Figure 2This is a second-view structural diagram of the assembly of this utility model; Figure 3 This is a third-view structural diagram of the assembly of this utility model; Figure 4 This is a schematic diagram of the structure of the outer shell of this utility model.

[0015] In the diagram: 1-Outer shell, 2-Reinforcing ring, 3-Junction box, 4-Heat dissipation fin assembly, 5-Terminal block, 6-Ventilation hole, 7-Mounting base, 8-Connecting plate, 9-Connecting flange, 10-Reinforcing rib, 11-Blocking ring, 12-Reinforcing plate, 13-Lifting lug. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited thereto.

[0017] like Figures 1 to 4 As shown, an integrated die-cast oil-cooled motor housing includes an integrated die-cast housing body 1. A reinforcing ring 2 is fixedly connected to the outer surface of the housing body 1. A junction box 3 is integrally die-cast on the outer surface of the reinforcing ring 2. A heat dissipation fin assembly 4 is provided at the connection between the reinforcing ring 2 and the junction box 3. Several terminal blocks 5 are provided inside the junction box 3. The terminal blocks 5 are distributed along the length direction of the junction box 3. Several ventilation holes 6 are opened on one side of the reinforcing ring 2. The extension direction of the ventilation holes 6 is consistent with the length direction of the heat dissipation fin assembly 4. Two symmetrically arranged mounting bases 7 are integrally die-cast on the outer surface of the reinforcing ring 2. The two mounting bases 7 are symmetrically arranged about the junction box 3.

[0018] As an optional technical solution of this utility model, the outer surface of the reinforcing ring 2 is integrally die-cast with two linear array connecting plates 8. The left and right ends of the connecting plates 8 are respectively fixedly connected to two mounting bases 7, which can connect the two mounting bases 7 into a whole, enhance the structural stability of the connection between the mounting base 7 and the reinforcing ring 2, avoid loosening or deformation of a single mounting base 7 when subjected to force, and improve the firmness of the entire shell after installation.

[0019] As an optional technical solution of this utility model, a connecting flange 9 is fixedly connected to one side of the outer shell body 1. A number of reinforcing ribs 10 in a circular array are fixedly connected between the side of the connecting flange 9 near the junction box 3 and the outer shell body 1. This can effectively enhance the connection strength between the connecting flange 9 and the outer shell body 1, disperse the external force on the connecting flange 9, prevent the connection part from breaking due to force concentration, and ensure the reliability of the connection between the outer shell and the external equipment.

[0020] As an optional technical solution of this utility model, the outer surface of the reinforcing ring 2 is integrally die-cast with two linear array of blocking rings 11. The front and rear ends of the heat dissipation fin group 4 are respectively fixedly connected to the two blocking rings 11, which can limit and fix the heat dissipation fin group 4, prevent the heat dissipation fin group 4 from being displaced or deformed due to vibration or other reasons during long-term use, ensure the structural integrity of the heat dissipation fin group 4, and thus ensure the stable performance of its heat dissipation function.

[0021] As an optional technical solution of this utility model, the mounting base 7 is provided with mounting holes that penetrate the upper and lower surfaces of the mounting base 7. The side of the mounting base 7 away from the reinforcing ring 2 is provided with anti-slip texture, which facilitates fixing the shell to the mounting base with bolts or other connecting parts. The anti-slip texture on the side of the mounting base 7 away from the reinforcing ring 2 can increase the friction between the mounting base 7 and the mounting base, prevent the shell from sliding during use, and improve the stability after installation.

[0022] As an optional technical solution of this utility model, the outer surface of the reinforcing ring 2 is integrally die-cast with two symmetrically arranged reinforcing plates 12, and the junction box 3 is located between the two reinforcing plates 12. Each reinforcing plate 12 is fixedly connected to a lifting lug 13 on the side away from the junction box 3, which can protect the junction box 3, enhance the structural strength of the connection between the junction box 3 and the reinforcing ring 2, and reduce the risk of damage to the junction box 3 due to external impact. The lifting lug 13 fixedly connected to the side of each reinforcing plate 12 away from the junction box 3 facilitates the handling and installation of the entire shell by lifting equipment, simplifying the handling and installation process.

[0023] A one-piece die-cast oil-cooled motor housing, working principle as follows: 1): The reinforcing ring 2 on the outer surface of the outer shell body 1 and the junction box 3 are integrally die-cast, eliminating the need for later alignment and splicing, and saving steps such as bolt tightening.

[0024] 2): The mounting base 7 and connecting plate 8 on the outer surface of the reinforcing ring 2 are also die-cast synchronously with the main body, reducing assembly steps. This design avoids connection gaps caused by splicing.

[0025] 3): The connection between the reinforcing ring 2 and the junction box 3 is naturally sealed by the integrated structure. Combined with the tight connection of the heat dissipation fin group 4, the overall sealing performance is effectively improved and the risk of cooling oil leakage is reduced.

[0026] In summary, this integrated die-cast oil-cooled motor housing features a reinforced ring 2 on the outer surface of the housing body 1 and a junction box 3, all integrally die-cast without the need for subsequent alignment and assembly, eliminating the need for bolt tightening. Simultaneously, components such as the mounting base 7 and connecting plate 8 on the outer surface of the reinforced ring 2 are also die-cast synchronously with the main body, reducing assembly steps. This design avoids gaps caused by splicing; the connection between the reinforced ring 2 and the junction box 3 is naturally sealed through the integrated structure, and the tight connection of the heat dissipation fins effectively improves the overall structural sealing and reduces the risk of cooling oil leakage. This design improves upon this by optimizing the heat dissipation and reinforcement structure. The heat dissipation fins 4 at the connection between the reinforced ring 2 and the junction box 3, along with the ventilation holes 6 extending in the same direction, form an orderly airflow channel, accelerating heat dissipation. The reinforcing ribs between the connecting flange 9 and the housing body 1, as well as the retaining ring 11 on the outer surface of the reinforced ring 2, enhance the overall rigidity of the housing and assist in heat dissipation through metal conduction. In addition, the reinforcing plates 12 on both sides of the junction box 3 further enhance the structural strength of the wiring part, while the lifting lugs 13 facilitate the handling and installation of the housing. The overall design ensures heat dissipation efficiency while significantly improving the stability and durability of the housing under complex working conditions.

Claims

1. A one-piece die-cast oil-cooled motor housing, characterized in that: The device includes an integral die-cast outer shell body (1), a reinforcing ring (2) is fixedly connected to the outer surface of the outer shell body (1), a junction box (3) is integrally die-cast on the outer surface of the reinforcing ring (2), a heat dissipation fin group (4) is provided at the connection between the reinforcing ring (2) and the junction box (3), a number of terminal blocks (5) are provided inside the junction box (3), the terminal blocks (5) are distributed along the length direction of the junction box (3), a number of ventilation holes (6) are opened on one side of the reinforcing ring (2), the extension direction of the ventilation holes (6) is consistent with the length direction of the heat dissipation fin group (4), and two symmetrically arranged mounting bases (7) are integrally die-cast on the outer surface of the reinforcing ring (2), the two mounting bases (7) are symmetrically arranged about the junction box (3).

2. The one-piece die-cast oil-cooled motor housing according to claim 1, characterized in that: The outer surface of the reinforcing ring (2) is integrally die-cast with two linear array connecting plates (8), and the left and right ends of the connecting plates (8) are fixedly connected to two mounting bases (7) respectively.

3. The one-piece die-cast oil-cooled motor housing according to claim 2, characterized in that: A connecting flange (9) is fixedly connected to one side of the outer shell body (1), and a number of reinforcing ribs (10) in a circular array are fixedly connected between the side of the connecting flange (9) near the junction box (3) and the outer shell body (1).

4. The one-piece die-cast oil-cooled motor housing according to claim 3, characterized in that: The outer surface of the reinforcing ring (2) has two linear array of blocking rings (11) integrally die-cast, and the front and rear ends of the heat dissipation fin group (4) are fixedly connected to the two blocking rings (11) respectively.

5. The one-piece die-cast oil-cooled motor housing according to claim 4, characterized in that: The mounting base (7) has mounting holes that penetrate the upper and lower surfaces of the mounting base (7). The mounting base (7) has anti-slip textures on the side away from the reinforcing ring (2).

6. The one-piece die-cast oil-cooled motor housing according to claim 5, characterized in that: The outer surface of the reinforcing ring (2) has two symmetrically arranged reinforcing plates (12) integrally die-cast. The junction box (3) is located between the two reinforcing plates (12). Each reinforcing plate (12) has a lifting lug (13) fixedly connected to the side away from the junction box (3).

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