A new energy vehicle electronic oil pump body

Abstract

This utility model relates to the field of electronic oil pump technology and discloses an electronic oil pump body for new energy vehicles. The pump body includes a main shaft rotatably mounted on its inner side. A rear cover plate is located at the rear end of the pump body, and a sealing plug is located on the inner side of the rear cover plate. The rear cover plate is sleeved onto the outer side of the pump body via the sealing plug. A threaded sleeve is located at the rear end of the rear cover plate, with an oil inlet pipe at the top of the threaded sleeve. A bushing is located on the inner side of the threaded sleeve, and a groove is formed in the middle of the bushing. This utility model achieves this by fixing the rear cover plate to the rear end of the pump body, and fixing a mounting base to the rear end of the rear cover plate. A threaded sleeve is threadedly fixed to the outer side of the mounting base, and a bushing is located on the inner side of the threaded sleeve, with an oil inlet pipe at the top of the threaded sleeve. The main shaft is rotatably mounted inside the bushing, and lubricating oil can be discharged into the oil inlet pipe, flowing along the groove and oil hole to the outer side of the main shaft, effectively lubricating the main shaft and improving its performance.

Description

Technical Field

[0001] This utility model relates to the field of electronic oil pump technology, and in particular to an electronic oil pump body for new energy vehicles. Background Technology

[0002] The power system of new energy vehicles differs significantly from that of traditional fuel vehicles. Its core components place higher demands on thermal management, hydraulic control, or fuel supply systems. As one of the key components of new energy vehicles, the electronic oil pump is mainly used in scenarios such as coolant circulation, hydraulic braking system, fuel supply, or lubrication system. Its performance directly affects the safety, energy efficiency, and reliability of the entire vehicle.

[0003] In the operation of electronic oil pumps in new energy vehicles, the shaft, as the core transmission component connecting the drive motor and the impeller, directly affects the pumping efficiency and reliability. In existing pump designs, the shaft usually needs to pass through the pump casing, resulting in the shaft section being exposed outside the pump body. The exposed part of the shaft that passes through the pump casing does not have an effective fully enclosed dustproof structure. During the operation of new energy vehicles, the lubricating oil is prone to drying out or coming into contact with dust, causing the shaft to be obstructed from rotating. During maintenance, the pump body or motor must be disassembled to access the shaft surface, and the lubricating oil must be replenished manually, which makes the operation cumbersome and prone to uneven application.

[0004] Therefore, it is necessary to invent an electronic oil pump body for new energy vehicles to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a pump body for an electronic oil pump in new energy vehicles, in order to solve the problem mentioned in the background art that, during the use of electronic oil pumps in new energy vehicles, the shaft, as the core transmission component connecting the drive motor and the impeller, directly affects the pumping efficiency and reliability. In existing pump body designs, the shaft usually needs to pass through the pump housing, resulting in the shaft section being exposed outside the pump body. The exposed part of the shaft that passes through the pump housing does not have an effective fully enclosed dustproof structure. During the operation of new energy vehicles, the lubricating oil is prone to drying out or coming into contact with dust, causing the shaft rotation to be obstructed. During maintenance, the pump body or motor must be disassembled to access the shaft surface, and the shaft must be manually replenished with lubricating oil, which makes the operation steps cumbersome and easily leads to uneven application.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an electronic oil pump body for new energy vehicles, comprising a pump body, a main shaft rotatably disposed on the inner side of the pump body, a rear cover plate disposed at the rear end of the pump body, a sealing plug disposed on the inner side of the rear cover plate, and the rear cover plate being sleeved on the outer side of the pump body through the sealing plug;

[0007] The rear end of the rear cover plate is provided with a threaded sleeve, the top end of the threaded sleeve is provided with an oil inlet pipe, and the inner side of the threaded sleeve is provided with a bushing.

[0008] The bushing has a groove in the middle, and multiple oil holes are evenly arranged at the bottom of the groove.

[0009] As a preferred embodiment, the rear end of the rear cover is fixedly connected to a mounting base, the outer side of the mounting base is provided with an external thread, and the threaded sleeve is threadedly connected to the outer side of the mounting base.

[0010] As a preferred embodiment, a second through hole is provided on one side of the threaded sleeve, a sealing ring is provided on the inner side of the second through hole, and a circular ring is fixedly connected to one side of the sealing ring.

[0011] As a preferred embodiment, the rear cover plate has a plurality of first mounting holes evenly provided on its side, and bolts can be provided on the inner side of the first mounting holes. The rear cover plate is fixedly connected to the rear end of the pump body by bolts.

[0012] As a preferred embodiment, the rear cover plate has a first through hole on the side away from the pump body, the main shaft is rotatably disposed inside the first through hole, and the inner side of the rear cover plate is provided with dust-absorbing cotton.

[0013] As a preferred embodiment, a front cover plate is provided on the outer side of the front end of the pump body. The front cover plate is sleeved on the outer side of the pump body. A plurality of second mounting holes are evenly provided on the side of the front cover plate away from the pump body. The main shaft is rotatably disposed on the inner side of the front cover plate.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. This utility model has a rear cover plate fixedly connected to the rear end of the pump body, and a mounting base fixedly connected to the rear end of the rear cover plate. A threaded sleeve is threadedly fixed to the outer side of the mounting base, and a bushing is provided on the inner side of the threaded sleeve. An oil inlet pipe is provided at the top of the threaded sleeve. The main shaft is rotatably set inside the bushing. At the same time, lubricating oil can be discharged into the oil inlet pipe and flow to the outer side of the main shaft along the groove and oil hole, which can effectively lubricate the main shaft and improve the performance of the main shaft.

[0016] 2. This utility model features a dust-absorbing cotton on the inner side of the rear cover plate, which effectively prevents dust from entering the inner side of the rear cover plate through the first through hole and adhering to the spindle, thus avoiding any impact on the use of the spindle. At the same time, a ring is provided on the inner side of the threaded sleeve, and the sealing ring can be set on the inner side of the threaded sleeve, thereby further reducing the entry of dust and improving the performance of the spindle. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the rear cover plate in this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the rear cover plate in this utility model;

[0020] Figure 4 This is a schematic diagram showing the disassembly structure of the threaded sleeve and the mounting base in this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the bushing of this utility model.

[0022] In the picture:

[0023] 1. Pump body; 11. Main shaft;

[0024] 2. Rear cover plate; 21. Sealing plug; 22. First mounting hole; 23. First through hole; 24. Dust-absorbing cotton; 25. Threaded sleeve; 251. Oil inlet pipe; 252. Second through hole; 26. Mounting base; 261. External thread; 27. Shaft sleeve; 271. Groove; 272. Oil hole; 28. Ring; 281. Sealing ring;

[0025] 3. Front cover plate; 31. Second mounting hole. Detailed Implementation

[0026] 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.

[0027] Please see the appendix Figure 1 - Appendix Figure 5 A new energy vehicle electronic oil pump body includes a pump body 1, a main shaft 11 is rotatably arranged on the inner side of the pump body 1, a rear cover plate 2 is arranged at the rear end of the pump body 1, a sealing plug 21 is arranged on the inner side of the rear cover plate 2, and the rear cover plate 2 is sleeved on the outer side of the pump body 1 through the sealing plug 21.

[0028] A threaded sleeve 25 is provided at the rear end of the rear cover plate 2, an oil inlet pipe 251 is provided at the top end of the threaded sleeve 25, and a bushing 27 is provided on the inner side of the threaded sleeve 25.

[0029] The bushing 27 has a groove 271 in the middle, and multiple oil holes 272 are evenly arranged at the bottom of the groove 271.

[0030] Specifically, a rear cover plate 2 is fixedly connected to the rear end of the pump body 1, and a mounting base 26 is fixedly connected to the rear end of the rear cover plate 2. A threaded sleeve 25 is threadedly fixed to the outer side of the mounting base 26, and a bushing 27 is provided on the inner side of the threaded sleeve 25. An oil inlet pipe 251 is provided at the top of the threaded sleeve 25. The main shaft 11 is rotatably disposed on the inner side of the bushing 27. At the same time, lubricating oil can be discharged into the oil inlet pipe 251 and flow along the groove 271 and the oil hole 272 to the outer side of the main shaft 11, which can effectively lubricate the main shaft 11 and improve the performance of the main shaft 11.

[0031] Please see the appendix Figure 4 The rear end of the rear cover plate 2 is fixedly connected to the mounting base 26. The outer side of the mounting base 26 is provided with external thread 261, and the threaded sleeve 25 is threadedly connected to the outer side of the mounting base 26.

[0032] Specifically, by setting the mounting base 26, the outer side of the mounting base 26 is provided with an external thread 261, and the inner side of the threaded sleeve 25 is provided with a corresponding internal thread, so as to facilitate threaded connection to the outer side of the mounting base 26.

[0033] Please see the appendix Figure 4 A second through hole 252 is provided on one side of the threaded sleeve 25, and a sealing ring 281 is provided inside the second through hole 252. A circular ring 28 is fixedly connected to one side of the sealing ring 281.

[0034] Specifically, by setting a second through hole 252, the size of which corresponds to the sealing ring 281, the sealing ring 281 can be snapped into the inner side of the second through hole 252. The main shaft 11 can be set inside the sealing ring 281, thereby effectively preventing dust from entering the inner side of the threaded sleeve 25 from between the second through hole 252 and the main shaft 11. By setting a ring 28, the ring 28 is set on the inner wall of the inner side of the threaded sleeve 25.

[0035] Please see the appendix Figure 2 The rear cover plate 2 has multiple first mounting holes 22 evenly provided on its side. Bolts can be provided on the inner side of the first mounting holes 22. The rear cover plate 2 is fixedly connected to the rear end of the pump body 1 by bolts.

[0036] Specifically, by setting the first mounting hole 22, the rear end of the pump body 1 is also provided with a hole corresponding to the first mounting hole 22, so that the rear cover plate 2 can be fixedly connected to the rear end of the pump body 1 by using bolts passing through the first mounting hole 22.

[0037] Please see the appendix Figure 2 The rear cover plate 2 has a first through hole 23 on its side, the main shaft 11 is rotatably disposed inside the first through hole 23, and a dust-absorbing cotton 24 is disposed inside the rear cover plate 2.

[0038] Specifically, by setting the first through hole 23, the main shaft 11 inside the pump body 1 can pass through the first through hole 23. By setting the dust-absorbing cotton 24, the dust-absorbing cotton 24 can be set on the inner side of the rear cover plate 2 and on the outer side of the main shaft 11, so as to effectively absorb the dust passing through the first through hole 23 and prevent the dust from being absorbed onto the surface of the main shaft 11.

[0039] Please see the appendix Figure 1 The front end of the pump body 1 is provided with a front cover plate 3, and multiple second mounting holes 31 are evenly provided on the side of the front cover plate 3. The main shaft 11 is rotatably located on the inner side of the front cover plate 3.

[0040] Specifically, by setting a front cover plate 3, with second mounting holes 31 on all four sides of the front cover plate 3, and a hole corresponding to the second mounting holes 31 on the side of the pump body 1 near the front cover plate 3, the front cover plate 3 can be fixedly connected to the front end of the pump body 1 with bolts. When disassembly and maintenance are required, the pump body 1 can be quickly disassembled for internal maintenance.

[0041] The working principle of this utility model is as follows: When it is necessary to inject lubricating oil into the threaded sleeve 25, lubricating oil can be directly injected into the inside of the oil inlet pipe 251. The lubricating oil enters the inner side of the threaded sleeve 25 along the oil inlet pipe 251 and flows into the groove 271. The main shaft 11 rotates inside the bushing 27, thereby causing the lubricating oil to flow from the groove 271 along the oil hole 272 to the outer side of the main shaft 11, effectively lubricating the surface of the main shaft 11.

[0042] The inner side of the rear cover plate 2 is provided with dust-absorbing cotton 24, which can effectively prevent dust from entering the inner side of the rear cover plate 2 through the first through hole 23 and adhering to the spindle 11, thus avoiding affecting the use of the spindle 11. At the same time, the inner side of the threaded sleeve 25 is provided with a ring 28, and the sealing ring 281 can be set inside the threaded sleeve 25, which can further reduce the entry of dust and improve the use effect of the spindle 11.

[0043] By setting a rear cover plate 2 and a front cover plate 3, and providing a first mounting hole 22 and a second mounting hole 31 around the four sides of the rear cover plate 2 and the front cover plate 3 respectively, and providing a hole corresponding to the second mounting hole 31 on the side of the pump body 1 near the front cover plate 3, the front cover plate 3 can be fixedly connected to the front end of the pump body 1 with bolts, and the rear cover plate 2 can be fixed to the rear end of the main body 1. When disassembly and maintenance are required, the pump body 1 can be quickly disassembled for internal maintenance.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A new energy vehicle electronic oil pump body, comprising a pump body (1), a main shaft (11) is rotatably arranged on the inner side of the pump body (1), characterized in that: The pump body (1) is provided with a rear cover plate (2) at its rear end. A sealing plug (21) is provided on the inner side of the rear cover plate (2). The rear cover plate (2) is sleeved on the outer side of the pump body (1) through the sealing plug (21). The rear end of the rear cover plate (2) is provided with a threaded sleeve (25), the top end of the threaded sleeve (25) is provided with an oil inlet pipe (251), and the inner side of the threaded sleeve (25) is provided with a bushing (27). The bushing (27) has a groove (271) in the middle, and a plurality of oil holes (272) are evenly arranged at the bottom end of the groove (271).

2. The pump body for an electronic oil pump in a new energy vehicle according to claim 1, characterized in that: The rear end of the rear cover plate (2) is fixedly connected to a mounting base (26), and the outer side of the mounting base (26) is provided with an external thread (261). The threaded sleeve (25) is threadedly connected to the outer side of the mounting base (26).

3. The pump body of an electronic oil pump for new energy vehicles according to claim 2, characterized in that: The threaded sleeve (25) has a second through hole (252) on one side, and a sealing ring (281) is provided inside the second through hole (252). A ring (28) is fixedly connected to one side of the sealing ring (281).

4. The pump body of an electronic oil pump for new energy vehicles according to claim 3, characterized in that: The rear cover plate (2) has a plurality of first mounting holes (22) evenly provided on its side. Bolts can be provided on the inner side of the first mounting holes (22). The rear cover plate (2) is fixedly connected to the rear end of the pump body (1) by bolts.

5. The pump body of an electronic oil pump for new energy vehicles according to claim 4, characterized in that: The rear cover plate (2) has a first through hole (23) on the side away from the pump body (1), the main shaft (11) is rotatably disposed inside the first through hole (23), and a dust-absorbing cotton (24) is disposed on the inner side of the rear cover plate (2).

6. The pump body of an electronic oil pump for new energy vehicles according to claim 5, characterized in that: A front cover plate (3) is provided on the outer side of the front end of the pump body (1). The front cover plate (3) is sleeved on the outer side of the pump body (1). A plurality of second mounting holes (31) are evenly provided on the side of the front cover plate (3) away from the pump body (1). The main shaft (11) is rotatably disposed on the inner side of the front cover plate (3).

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