Cooling oil pipe assembly

Abstract

The utility model provides a cooling oil pipe assembly which comprises a main oil duct and an oil spraying branch pipe, the main oil duct is composed of an oil collecting pipe female die and an oil collecting pipe cover plate, the oil spraying branch pipe is communicated with the main oil duct, an oil distributing duct is arranged in the oil spraying branch pipe, and oil spraying holes are evenly distributed in the oil spraying branch pipe and the oil collecting pipe female die. The oil spraying branch pipe is integrally connected with the oil collecting pipe cover plate, a fixing lug is integrally arranged on the oil collecting pipe female die, and the oil collecting pipe female die and the oil collecting pipe cover plate are welded after being in butt joint; the oil spraying branch pipe and the oil collecting pipe cover plate are integrally connected, the fixing lug and the oil collecting pipe female die are integrally connected, and the oil collecting pipe female die and the oil collecting pipe cover plate are welded after being in butt joint, so that the complexity of a forming die is reduced, the cost is reduced, assembly forming is facilitated, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor cooling equipment, in particular to a cooling oil pipe assembly. Background Art

[0002] The electric drive cooling system is used to cool the electric drive motor to ensure the normal operation of the electric drive motor. In addition to overall cooling, the electric drive motor can be cooled by adding a large amount of lubricating oil. It can also be cooled at a fixed point by cooling the oil pipe to achieve fixed-point oil injection cooling. Publication No. CN220653134U A cooling oil injection pipe for an oil-cooled motor includes an oil collecting pipe assembly and an oil injection branch pipe. The oil collecting pipe assembly includes an oil collecting pipe die and an oil collecting pipe upper cover. The oil injection branch pipe, fixing ears and plastic positioning columns are all arranged on the oil collecting pipe die, which makes the injection molding cost of the oil collecting pipe die, the oil injection branch pipe, the fixing ears and the plastic positioning column relatively high. Utility Model Content

[0003] In view of the problems in the prior art, the utility model provides a cooling oil pipe assembly, the purpose of which is to reduce the injection molding cost of the utility model and improve the production efficiency.

[0004] A cooling oil pipe assembly comprises a main oil passage formed by an oil collecting pipe die and an oil collecting pipe cover plate, and an oil injection branch pipe connected to the main oil passage, wherein the oil injection branch pipe is an oil distribution passage, and oil injection holes are distributed on the oil injection branch pipe and the oil collecting pipe die; the oil injection branch pipe is integrally connected with the oil collecting pipe cover plate, a fixing ear is integrally arranged on the oil collecting pipe die, and the oil collecting pipe die and the oil collecting pipe cover plate are welded after being butted.

[0005] Further, a slot facing the oil collecting pipe die is integrally provided along the side of the edge of the oil collecting pipe cover plate, and an insert block is integrally provided at a position corresponding to the slot on the side of the oil collecting pipe die, and the insert block is inserted into the slot and welded.

[0006] Furthermore, the oil collecting pipe cover is made of transparent plastic material, the oil collecting pipe concave mold is made of non-transparent plastic material, and the oil collecting pipe concave mold and the oil collecting pipe cover are connected by laser welding.

[0007] Further, the oil inlet of the oil channel is located on one side of the main oil channel, a flow limiting block is set at the position of the branch port between the oil inlet of the oil channel and the main oil channel, and the flow limiting block is integrated with the oil collecting pipe die or the oil collecting pipe cover.

[0008] Furthermore, flow limiting blocks are arranged on both sides of the oil distribution channel, and an oil flow gap connecting the oil distribution channel and the main oil channel is formed between the flow limiting blocks, the oil collecting pipe die and the oil collecting pipe cover plate.

[0009] Furthermore, the oil collecting pipe die and the oil collecting pipe cover are both arc-shaped structures, the fuel injection branch pipe is perpendicularly arranged to the plate surface of the oil collecting pipe cover, and the axial direction of the fuel injection branch pipe is perpendicularly arranged to the radial direction of the arc-shaped structure.

[0010] Further, the fixing ear is arranged along the outer ring side wall of the oil collecting pipe cavity die.

[0011] Furthermore, the oil injection holes are distributed on the inner ring side wall of the oil collecting pipe die and on the side surface of the oil injection branch pipe, and the side surface is oriented in the same direction as the arc structure.

[0012] Furthermore, the free end of the fuel injection branch pipe is an open end, and a plug is sealed on the open end of the fuel injection branch pipe.

[0013] Furthermore, an oil inlet nozzle is integrally arranged on the oil collecting pipe die, and the oil inlet nozzle and the oil collecting pipe cover plate are respectively located on two opposite sides of the oil collecting pipe die.

[0014] The beneficial effects of the utility model are as follows: by integrally connecting the fuel injection branch pipe with the oil collecting pipe cover plate, integrally connecting the fixing ear and the oil collecting pipe die, and welding the oil collecting pipe die and the oil collecting pipe cover plate after docking, it is beneficial to reduce the complexity of the molding mold, reduce costs, facilitate assembly and molding, and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure between the fuel injection branch pipe and the oil collecting pipe cover plate in the utility model;

[0017] Figure 3 for Figure 2 A magnified image of area A;

[0018] Figure 4 It is a schematic diagram of the connection structure of the oil collecting pipe concave mold and the fixing ear in the utility model;

[0019] Figure 5 for Figure 4 Enlarged view of area B;

[0020] Figure 6 It is a schematic diagram of the cross-sectional structure of the oil gap in the utility model. DETAILED DESCRIPTION

[0021] The utility model is described in detail below in conjunction with the accompanying drawings. The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be interpreted as limiting the utility model. The directional terms such as left, middle, right, top, and bottom in the embodiments of the utility model are only relative concepts or are based on the normal use state of the product, and should not be considered as restrictive.

[0022] A cooling oil pipe assembly, such as Figure 1 As shown, it includes a main oil channel composed of an oil collecting pipe die 3 and an oil collecting pipe cover plate 4, and an oil injection branch pipe 5 connected to the main oil channel. The oil collecting pipe die 3 and the oil collecting pipe cover plate 4 are both arc-shaped structures. The oil injection branch pipe 5 is perpendicular to the plate surface of the oil collecting pipe cover plate 4, and the axial direction of the oil injection branch pipe 5 is perpendicular to the radial direction of the arc-shaped structure. The oil injection branch pipe 5 has an oil distribution channel inside, and oil injection holes 6 are distributed on the oil injection branch pipe 5 and the oil collecting pipe die 3. The oil injection holes 6 are distributed on the inner ring side wall of the oil collecting pipe die 3 and on the side of the oil injection branch pipe 5, and the side is in the same direction as the arc-shaped structure. The diameter range of the oil injection hole 6 is 1mm~3mm; combined with Figure 2 As shown, the fuel injection branch pipe 5 is integrally connected with the fuel collecting pipe cover plate 4. To facilitate the injection and demoulding of the fuel injection branch pipe 5, the free end of the fuel injection branch pipe 5 is an open end, and a plug 7 is sealed on the open end of the fuel injection branch pipe 5; Figure 4 As shown, a fixing ear 2 is integrally arranged on the oil collecting pipe die 3, and the fixing ear 2 is arranged along the outer ring side wall of the oil collecting pipe die 3 and extends in a direction away from the oil collecting pipe die 3. In order to improve the strength of the bolt fixing hole on the fixing ear 2, a metal insert 21 is embedded in the bolt fixing hole of the fixing ear 2; the oil collecting pipe die 3 and the oil collecting pipe cover plate 4 are butt-jointed and welded; Figure 3 and Figure 5 As shown, a slot 41 facing the oil collecting pipe die 3 is integrally provided along the side of the edge of the oil collecting pipe cover 4, and an insert block 31 is integrally provided at a position corresponding to the slot 41 on the side of the oil collecting pipe die 3. The insert block 31 is inserted into the slot 41 and welded. The oil collecting pipe cover 4 is made of transparent plastic material, and the oil collecting pipe die 3 is made of non-transparent plastic material. The oil collecting pipe die 3 and the oil collecting pipe cover 4 are connected by laser welding; an oil inlet nozzle 1 is integrally provided on the oil collecting pipe die 3, and the oil inlet nozzle 1 is located at the end of the oil collecting pipe die 3, and the oil inlet nozzle 1 and the oil collecting pipe cover 4 are respectively located on opposite sides of the oil collecting pipe die 3.

[0023] Among them, combined Figure 5 and Figure 6As shown, the oil inlet of the oil distribution channel is located on one side of the main oil channel, and a flow limiting block 32 is provided at the position of the oil inlet of the oil distribution channel and the branch port between the main oil channel. The flow limiting block 32 is used to limit the size of the branch port between the main oil channel and the oil distribution channel, thereby adjusting the amount of oil diverted from the main oil channel to the oil distribution channel. The flow limiting block 32 is integrated with the oil collecting pipe die 3 or the oil collecting pipe cover plate 4. In this embodiment, the flow limiting block 32 is integrated with the inner wall of the oil collecting pipe die 3, and the flow limiting block 32 is provided on both sides of the oil distribution channel. Figure 6 As shown, an oil gap 8 connecting the sub-oil channel and the main oil channel is formed between the flow limiting block 32, the oil collecting pipe die 3 and the oil collecting pipe cover plate 4. The size of the oil gap 8 is adjusted by adjusting the specifications of the flow limiting block 32, and the flow limiting effect of the oil gap 8 limits the flow from the main oil channel to the sub-oil channel.

[0024] The oil collecting pipe die 3, the oil collecting pipe cover plate 4 and the oil injection branch pipe 5 in the utility model are all made of PPA-GF, PPS-GF, PA66-GF or PA6-GF.

[0025] During operation, the utility model is wound around the outside of the electric drive motor and close to the electric drive motor, and the oil injection hole 6 is directed to a specific point on the electric drive motor to be cooled; then, the oil inlet flow rate of the oil inlet nozzle 1 is controlled, and the oil is diverted to each branch oil channel through the main oil channel, and the oil injection hole 6 sprays oil at a fixed point to cool the electric drive motor, so that a small amount of oil injection can meet the cooling demand of the electric drive motor, thereby realizing the low-cost operation of the electric drive cooling system.

[0026] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A cooling oil pipe assembly, characterized in that: It includes a main oil channel composed of an oil collecting pipe die and an oil collecting pipe cover plate, and an injection branch pipe connected to the main oil channel. The injection branch pipe is an oil distribution channel, and injection holes are distributed on the injection branch pipe and the oil collecting pipe die. The injection branch pipe is integrally connected with the oil collecting pipe cover plate, and a fixing ear is integrally arranged on the oil collecting pipe die. The oil collecting pipe die and the oil collecting pipe cover plate are welded after being butted.

2. The cooling oil pipe assembly according to claim 1, characterized in that: A slot facing the oil collecting pipe die is integrally arranged along the side of the edge of the oil collecting pipe cover plate, and an insert block is integrally arranged at a position corresponding to the slot on the side of the oil collecting pipe die. The insert block is inserted into the slot and welded.

3. The cooling oil pipe assembly according to claim 2, characterized in that: The oil collecting pipe cover is made of transparent plastic material, the oil collecting pipe concave mold is made of non-transparent plastic material, and the oil collecting pipe concave mold and the oil collecting pipe cover are connected by laser welding.

4. The cooling oil pipe assembly according to claim 1, 2 or 3, characterized in that: The oil inlet of the oil distribution channel is located on one side of the main oil channel. A flow limiting block is arranged at the position of the branch port between the oil inlet of the oil distribution channel and the main oil channel. The flow limiting block is integrated with the oil collecting pipe die or the oil collecting pipe cover.

5. The cooling oil pipe assembly according to claim 4, characterized in that: Flow limiting blocks are arranged on both sides of the oil distribution channel, and an oil gap connecting the oil distribution channel and the main oil channel is formed between the flow limiting blocks, the oil collecting pipe die and the oil collecting pipe cover plate.

6. The cooling oil pipe assembly according to claim 1, characterized in that: The oil collecting pipe concave die and the oil collecting pipe cover are both arc-shaped structures, the fuel injection branch pipe is vertically arranged to the plate surface of the oil collecting pipe cover, and the axial direction of the fuel injection branch pipe is vertically arranged to the radial direction of the arc-shaped structure.

7. The cooling oil pipe assembly according to claim 6, characterized in that: The fixing ears are arranged along the outer ring side wall of the oil collecting pipe cavity die.

8. The cooling oil pipe assembly according to claim 6, characterized in that: The oil injection holes are distributed on the inner ring side wall of the oil collecting pipe concave die and on the side surface of the oil injection branch pipe, and the side surface is in the same direction as the arc structure.

9. The cooling oil pipe assembly according to claim 1, characterized in that: The free end of the fuel injection branch pipe is an open end, and a plug is sealed on the open end port of the fuel injection branch pipe.

10. The cooling oil pipe assembly according to claim 1, characterized in that: An oil inlet nozzle is integrally arranged on the oil collecting pipe die, and the oil inlet nozzle and the oil collecting pipe cover plate are respectively located on two opposite sides of the oil collecting pipe die.

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