Novel cooling oil pipe assembly

Abstract

A novel cooling oil pipe assembly comprises a main oil duct used for supplying oil and branch oil ducts used for spraying oil, the main oil duct is of a horizontally-arranged C-shaped structure, a plurality of branch oil ducts are distributed on the bottom face of the main oil duct, each branch oil duct is of an L-shaped structure, and the end portion of the connecting end of each L-shaped structure is vertically arranged and communicated with the main oil duct. The end portion of the free end of the L-shaped structure is transversely arranged, the end head of the free end of the L-shaped structure is closed, and the end portion of the connecting end of the L-shaped structure is provided with spraying holes which are vertically distributed and used for spraying cooling points which are vertically distributed on the electric drive motor. Transversely distributed spray holes are formed in the free end part of the L-shaped structure and are used for spraying transversely distributed cooling points on the electric drive motor, and the spray holes distributed in the connecting end part of the L-shaped structure are higher than the spray holes distributed in the free end part of the L-shaped structure; the end part of the free end of the branch oil duct is bent, so that the spray hole can be sent to a cooling point at a special position on the electric drive motor, and the cooling of the cooling point with complex distribution of the electric drive motor is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor cooling equipment technical field, concretely relates to a novel cooling oil pipe assembly. BACKGROUND

[0002] The electric drive cooling system is used for cooling the electric drive motor, and guarantees the normal operation of the electric drive motor; the electric drive motor cooling can be integral cooling, and is realized through filling a large amount of lubricating oil; also can carry out fixed point cooling, and realizes fixed point oil injection cooling through the cooling oil pipe. The cooling oil pipe assembly of application No. 2024214932123 and the cooling oil injection pipe of oil-cooled motor of publication No. CN220653134U all include main oil channel for oil supply and oil distribution channel for oil injection, wherein the oil distribution channel is used to send cooling lubricating oil to the specified position and carry out oil injection, and the cooling point of the electric drive motor changes at present, and the existing vertical oil distribution channel cannot satisfy the change of cooling point. SUMMARY

[0003] In view of the demand in the prior art, the utility model provides a novel cooling oil pipe assembly, which aims to meet the cooling of complex distribution cooling points of the electric drive motor.

[0004] A novel cooling oil pipe assembly, comprising main oil channel for oil supply and oil distribution channel for oil injection, the main oil channel is horizontally arranged C-shaped structure, and a plurality of oil distribution channels are distributed on the bottom surface of the main oil channel, and the oil distribution channels are distributed with spray holes for spraying the cooling points of the electric drive motor, the oil distribution channel is L-shaped structure, the connecting end of the L-shaped structure is vertically arranged and is communicated with the main oil channel, the free end of the L-shaped structure is horizontally arranged, and the free end of the L-shaped structure is closed, the spray holes are vertically arranged on the connecting end of the L-shaped structure and are used for spraying the vertically arranged cooling points of the electric drive motor, the spray holes are horizontally arranged on the free end of the L-shaped structure and are used for spraying the horizontally arranged cooling points of the electric drive motor, and the spray holes distributed on the connecting end of the L-shaped structure are higher than the spray holes distributed on the free end of the L-shaped structure.

[0005] Further, the node of the connecting end and the free end of the L-shaped structure is a clamping structure.

[0006] Further, the connecting end head of the free end of the L-shaped structure is bent upward to form a sleeve head, the lower end head of the connecting end of the L-shaped structure is sleeved in the sleeve head, a positioning strip is arranged between the lower end head of the connecting end of the L-shaped structure and the sleeve head, the positioning strip is integrally arranged on the lower end head of the connecting end of the L-shaped structure, a strip-shaped notch is formed in the sleeve head at the position corresponding to the positioning strip, the strip-shaped notch is matched with the positioning strip, the positioning strip is located in the strip-shaped notch and slides with the strip-shaped notch, and the positions of the plurality of positioning strips on the circumference of the connecting end of the L-shaped structure are different, and the position of each strip-shaped notch on the circumference of the sleeve head is the same.

[0007] Furthermore, an outer annular recess is provided on the outer wall of the lower end of the L-shaped structure connection end, and an inner annular recess is provided on the inner wall of the connection end of the free end of the L-shaped structure. The inner annular recess is fitted onto the outer annular recess and is interference-fitted with it. The interference between the inner annular recess and the outer annular recess is 0.05mm ~ 0.15mm.

[0008] Furthermore, an annular convex ring is integrally provided on the outer annular platform, and the annular convex ring is interference-fitted with the inner annular platform.

[0009] Furthermore, a wedge-shaped locking block is integrally provided on the outer wall of the L-shaped structure connection end, and a locking groove is provided on the free end of the L-shaped structure corresponding to the position of the wedge-shaped locking block, and the wedge-shaped locking block is engaged in the locking groove.

[0010] Furthermore, the inner diameter of the L-shaped structure's connecting end is larger than the inner diameter of its free end.

[0011] Furthermore, an oil inlet is fixedly installed on the bottom surface at one end of the main oil passage. The oil inlet is vertically positioned and connected to the main oil passage.

[0012] Furthermore, a fixing lug is distributed on the lower side of the outer ring of the main oil passage. The fixing lug is horizontally set and extends away from the main oil passage.

[0013] The beneficial effects of this utility model are as follows: by bending the free end of the oil distribution channel, the spray hole can be delivered to the cooling point at a special location on the electric drive motor, thereby satisfying the cooling of the complex distribution of cooling points on the electric drive motor; at the same time, the L-shaped structure connection end and the free end are snapped together, and the positioning strip and strip notch are used for limiting, thereby facilitating the assembly and error prevention of the oil distribution channel; this utility model has a simple structure and is convenient for production and assembly. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 Enlarged view of the structure of region A in the middle;

[0016] Figure 3 This is a schematic cross-sectional view of the middle section of the oil distribution channel.

[0017] Figure 4 for Figure 3 Enlarged view of the structure of region B in the middle. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings. Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The directional terms such as left, center, right, top, and bottom in the embodiments of the present invention are only relative concepts or referenced to the normal use state of the product, and should not be considered restrictive.

[0019] First embodiment:

[0020] A new type of cooling oil pipe assembly, such as Figure 1 and Figure 2 As shown, the system includes a main oil channel 1 for oil supply and branch oil channels 2 for oil injection. The main oil channel 1 is a horizontally arranged C-shaped structure. Several branch oil channels 2 are distributed on the bottom surface of the main oil channel 1. Spray holes 21 for spraying the cooling points of the electric drive motor are distributed on the branch oil channels 2. Some branch oil channels 2 are L-shaped structures, and some are vertically arranged "I"-shaped structures. The connecting end of the L-shaped structure is vertically arranged and connected to the main oil channel 1. The free end of the L-shaped structure is horizontally arranged and its free end is closed. That is, a plug 22 is plugged into the free end port of the L-shaped structure and welded or bonded to it. Vertically distributed spray holes are provided on the connecting end of the L-shaped structure. 21 is used to spray cooling points vertically distributed on the electric drive motor. The free end of the L-shaped structure is provided with horizontally distributed spray holes 21 for spraying cooling points horizontally distributed on the electric drive motor. The spray holes 21 distributed on the connecting end of the L-shaped structure are higher than the spray holes 21 distributed on its free end. In order to increase the liquid pressure at the free end in the oil channel 2, the inner diameter of the connecting end of the L-shaped structure is larger than the inner diameter of its free end. An oil inlet 3 is fixedly installed on the bottom surface of one end of the main oil channel 1. The oil inlet 3 is vertically arranged and connected to the main oil channel 1. A fixed ear plate 11 is distributed on the lower side of the outer ring of the main oil channel 1. The fixed ear plate 11 is horizontally arranged and extends away from the main oil channel 1.

[0021] To facilitate the manufacturing and processing of the connecting end and free end of the L-shaped structure, the nodes at the connecting end and free end of the L-shaped structure are snap-fit ​​structures. In other embodiments, the nodes at the connecting end and free end of the L-shaped structure can also be welded structures or threaded mating structures. Since the relative positions of the free ends of the multiple oil channels 2 and the electric drive motor are different, to facilitate accurate assembly of the connecting end and free end of the L-shaped structure, the connecting end of the free end of the L-shaped structure is bent upwards to form a sleeve 25. The lower end of the connecting end of the L-shaped structure is fitted inside the sleeve 25. A positioning strip 24 is provided between the lower end of the end cap and the sleeve 25. The positioning strip 24 is integrally set on the lower end cap of the L-shaped structure connection end. A strip-shaped notch 23 is formed on the sleeve 25 at the position corresponding to the positioning strip 24. The strip-shaped notch 23 matches the positioning strip 24, and the positioning strip 24 is located in the strip-shaped notch 23 and slides with it. The positions of several positioning strips 24 on the circumference of the L-shaped structure connection end are different, and the positions of each strip-shaped notch 23 on the circumference of the sleeve 25 are the same. Thus, the positioning strips 24 and the strip-shaped notches 23 adjust the deflection angle of the free end of the L-shaped structure relative to the X-axis in the horizontal plane. Figure 3 and Figure 4 As shown, to facilitate sealing between the lower end of the L-shaped structure connection end and the connection end of the L-shaped structure free end, an outer annular recess 28 is provided on the outer wall of the lower end of the L-shaped structure connection end, and an inner annular recess 29 is provided on the inner wall of the connection end of the L-shaped structure free end. The inner annular recess 29 is fitted onto the outer annular recess 28 and is interference-fitted with it. The interference between the inner annular recess 29 and the outer annular recess 28 is 0.05mm ~ 0.15mm.

[0022] In addition, to facilitate the snap-fit ​​between the connecting end and the free end of the L-shaped structure, a wedge-shaped snap-fit ​​block 27 is integrally provided on the outer wall of the connecting end of the L-shaped structure, and a slot 26 is provided on the free end of the L-shaped structure at the position corresponding to the wedge-shaped snap-fit ​​block 27. The wedge-shaped snap-fit ​​block 27 snaps into the slot 26, thereby realizing the quick snap-fit ​​between the connecting end and the free end of the L-shaped structure.

[0023] During operation, this utility model is mounted around the outside of the electric drive motor and close to it, with the nozzles facing the specific cooling points on the electric drive motor. At the same time, the nozzles distributed on the connecting end of the L-shaped structure are facing the vertically distributed cooling points on the electric drive motor, and the nozzles distributed on the free end of the L-shaped structure are facing the horizontally distributed cooling points on the electric drive motor. Then, the oil flow rate of the oil inlet is controlled, and the oil is distributed through the main oil passage to each branch oil passage, with the nozzles spraying oil to cool the cooling points.

[0024] Second embodiment:

[0025] Other technical features remain the same as in the first embodiment, but to improve the sealing effect between the lower end of the L-shaped structure connection end and the connection end of the L-shaped structure free end, such as... Figure 4 As shown, an annular protrusion 281 is integrally provided on the outer annular recess 28. The annular protrusion 281 is interference-fitted with the inner annular recess 29. The surface of the annular protrusion 281 that is used to mate with the inner annular recess 29 is an arc surface.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel cooling oil pipe assembly, comprising a main oil passage for oil supply and branch oil passages for oil spraying, wherein the main oil passage has a horizontally arranged C-shaped structure, and several branch oil passages are distributed on the bottom surface of the main oil passage, and spray holes for spraying cooling points of an electric drive motor are distributed on the branch oil passages, characterized in that: The oil distribution channel has an L-shaped structure. The connecting end of the L-shaped structure is vertically arranged and connected to the main oil channel. The free end of the L-shaped structure is horizontally arranged and its free end is closed. Vertically distributed spray holes are provided on the connecting end of the L-shaped structure to spray the vertically distributed cooling points on the electric drive motor. Horizontally distributed spray holes are provided on the free end of the L-shaped structure to spray the horizontally distributed cooling points on the electric drive motor. The spray holes distributed on the connecting end of the L-shaped structure are higher than the spray holes distributed on its free end.

2. The novel cooling oil pipe assembly according to claim 1, characterized in that: The L-shaped structure has a snap-fit ​​structure at the joints of the connecting end and the free end.

3. The novel cooling oil pipe assembly according to claim 2, characterized in that: The connecting end of the L-shaped structure is bent upward to form a sleeve. The lower end of the connecting end of the L-shaped structure is fitted inside the sleeve. A positioning strip is provided between the lower end of the connecting end of the L-shaped structure and the sleeve. The positioning strip is integrally set on the lower end of the connecting end of the L-shaped structure. A strip-shaped notch is opened on the sleeve at the position corresponding to the positioning strip. The strip-shaped notch matches the positioning strip, and the positioning strip is located in the strip-shaped notch and slides with it. Several positioning strips are in different positions on the circumference of the connecting end of the L-shaped structure, and each strip-shaped notch is in the same position on the circumference of the sleeve.

4. The novel cooling oil pipe assembly according to claim 2 or 3, characterized in that: An outer annular recess is provided on the outer wall of the lower end of the L-shaped structure connection end, and an inner annular recess is provided on the inner wall of the connection end of the free end of the L-shaped structure. The inner annular recess is fitted onto the outer annular recess and is interference-fitted with it. The interference between the inner annular recess and the outer annular recess is 0.05mm ~ 0.15mm.

5. The novel cooling oil pipe assembly according to claim 4, characterized in that: An annular protrusion is integrally formed on the outer annular platform, and the annular protrusion is interference-fitted with the inner annular platform.

6. The novel cooling oil pipe assembly according to claim 2, characterized in that: A wedge-shaped locking block is integrally set on the outer wall of the L-shaped structure connection end, and a locking groove is opened on the free end of the L-shaped structure corresponding to the position of the wedge-shaped locking block, and the wedge-shaped locking block is locked in the locking groove.

7. The novel cooling oil pipe assembly according to claim 1, characterized in that: The inner diameter of the L-shaped structure's connecting end is larger than the inner diameter of its free end.

8. The novel cooling oil pipe assembly according to claim 1, characterized in that: An oil inlet is fixedly installed on the bottom surface at one end of the main oil passage. The oil inlet is vertically positioned and connected to the main oil passage.

9. The novel cooling oil pipe assembly according to claim 1, characterized in that: Fixed lugs are distributed on the lower side of the outer ring of the main oil passage. The fixed lugs are horizontally set and extend away from the main oil passage.

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