Pump cover for electronic oil pump
By designing a limiting platform, mounting groove, and filter device in the pump cover of the electronic oil pump, the problem of impurities entering is solved, the reliability and stability of the oil pump are improved, and the replacement process of the filter device is simplified.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-03-13
AI Technical Summary
The pump cover of existing electronic oil pumps cannot filter external particulate impurities, causing impurities to enter the pump and reducing reliability and stability.
A pump cover structure was designed, including a pump cover body, an isolation ring, and a filter device. The filter device can filter particulate impurities through the cooperation of a limiting platform, a mounting groove, and a guide clip. The isolation ring fits tightly with the mounting groove, and the filter device is sleeved inside the isolation ring, including a frame and a filter screen.
It effectively improves the reliability and stability of the electronic oil pump, prevents impurities from entering, and is convenient to operate and easy to replace the filter device.
Smart Images
Figure CN223991860U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of oil pump structure technology, and in particular to a pump cover for an electronic oil pump. Background Technology
[0002] The electric oil pump mainly provides a power source for the lubrication or cooling system of a vehicle. Its structure includes a rotor assembly and an oil pump cover.
[0003] In the existing technology, the pump cover of the electronic oil pump cannot filter external particulate impurities. As a result, during daily use, impurities will enter the interior of the electronic oil pump and accumulate on the rotor assembly, reducing the reliability and stability of the electronic oil pump. Utility Model Content
[0004] This utility model provides a pump cover for an electronic oil pump, which enables the pump cover to filter particulate impurities during use, effectively improving the reliability and stability of the electronic oil pump.
[0005] To achieve the aforementioned objectives, this application adopts the following technical solution:
[0006] A pump cover for an electronic oil pump, characterized in that it includes:
[0007] The pump cover body includes a first cover and a second cover connected to the outer wall of the first cover. The first cover and the second cover are connected. A limiting platform is provided on the inner wall of the second cover. The limiting platform cooperates with the second cover to form an installation groove.
[0008] An isolation ring is connected inside the pump cover body. After the isolation ring is engaged with the mounting groove, the isolation ring abuts against the limiting platform.
[0009] A filter device fitted inside the isolation ring, the filter device including a frame and a filter screen connected to the frame.
[0010] In some alternative embodiments, the inner wall of the mounting groove is provided with a guide slot, and the outer wall of the isolation ring is provided with a guide head, the bottom of the guide head and the bottom of the isolation ring being on the same plane, and the guide head cooperating with the guide slot.
[0011] In some alternative embodiments, the sidewall of the isolation ring is further provided with at least one set of forward actuation grooves and at least one set of reverse actuation grooves.
[0012] In some alternative embodiments, a set of forward actuation slots includes at least three forward actuation slots, and a set of reverse actuation slots includes at least three reverse actuation slots.
[0013] In some alternative embodiments, the inclination angle of the forward actuation groove is α, the inclination angle of the reverse actuation groove is β, and 0°<α<90°, 90°<β<180°.
[0014] In some alternative implementations, α and β are complementary.
[0015] In some alternative embodiments, the height L2 of the isolation ring, the depth L1 of the mounting groove, and the height L3 of the filter device are all equal, with L1 = L2 = L3.
[0016] In some alternative embodiments, the filter device and the isolation ring are interference fit.
[0017] In some alternative embodiments, both the first cover and the second cover are cylindrical in shape, and the guide slots are distributed in a ring around the center of the second cover on the inner wall of the mounting groove.
[0018] In some alternative embodiments, the isolation ring is circular in shape, and the guide clips are distributed in a ring around the center of the isolation ring on the outer side wall of the isolation ring.
[0019] The pump cover for the electronic oil pump provided in this application is applicable not only to oil pumps, but also to water pumps and mud pumps in actual use.
[0020] The pump cover for the electronic oil pump provided in this application has the following beneficial effects:
[0021] The second cover in the pump cover body is connected to the outer wall of the first cover body, and the first cover body and the second cover body are connected. The inner wall of the second cover body is provided with a limiting platform, which cooperates with the second cover body to form a mounting groove. The isolation ring cooperates with the mounting groove inside the pump cover body, and after the isolation ring cooperates with the mounting groove, the isolation ring abuts against the limiting platform. At the same time, the filter device is sleeved inside the isolation ring. The filter device includes a frame and a filter screen connected to the frame, so that the pump cover for the electronic oil pump can filter particulate impurities during use, effectively improving the reliability and stability of the electronic oil pump. Attached Figure Description
[0022] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0023] Figure 1 This is a three-dimensional schematic diagram of a pump cover for an electronic oil pump according to this application;
[0024] Figure 2 This is an exploded view of a pump cover for an electronic oil pump according to this application;
[0025] Figure 3 yes Figure 2 Enlarged view of circle A shown;
[0026] Figure 4 This is a perspective view of the isolation ring and filter device in the pump cover of an electronic oil pump according to this application;
[0027] Figure 5 This is a schematic diagram of the isolation ring in the pump cover of an electronic oil pump according to another perspective of this application;
[0028] Figure 6 This is a schematic diagram of the isolation ring in the pump cover of an electronic oil pump according to this application from another perspective;
[0029] Figure 7 This is a schematic diagram of the cross-sectional structure of the pump cover body in an electronic oil pump according to this application;
[0030] Figure 8 This is a cross-sectional structural schematic diagram of a filter device in the pump cover of an electronic oil pump according to this application.
[0031] Figure label:
[0032] 10. Pump cover body; 11. First cover; 12. Second cover; 12A. Mounting groove; 12B. Guide slot; 121. Limiting platform;
[0033] 20. Isolation ring; 21. Guide clip; 22. Forward actuation groove; 23. Reverse actuation groove;
[0034] 30. Filter device; 31. Frame; 32. Filter screen. Detailed Implementation
[0035] The specific embodiments of this application are described below with reference to the accompanying drawings and examples. Through the content described in this specification, those skilled in the art can clearly and completely understand the technical solution, the technical problem solved, and the resulting technical effects of this application. It is understood that the specific embodiments described herein are only for explaining this application and not for limiting it. Furthermore, for ease of description, only the parts related to this application are shown in the accompanying drawings.
[0036] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the contents described in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size should fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.
[0037] The use of terms such as "first," "second," and "the" does not imply quantity limitation and may indicate singular or plural. The terms "comprising," "including," "having," and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or modules is not limited to the listed steps or units, but may also include steps or units not listed, or other steps or units inherent to such processes, methods, products, or devices. The terms "connected," "linked," and "coupled" used in this application are not limited to physical or mechanical connections, but may also include direct or indirect electrical connections.
[0038] It should also be noted that the longitudinal section corresponding to the embodiment of this application can be the section corresponding to the front view direction, the transverse section can be the section corresponding to the right view direction, and the horizontal section can be the section corresponding to the top view direction.
[0039] Furthermore, where there is no conflict, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0040] refer to Figure 1 and Figure 2 , Figure 1 This is a perspective view of a pump cover for an electronic oil pump according to this application. Figure 2 This is an exploded view of a pump cover for an electronic oil pump according to this application. Figure 1 and Figure 2 As shown, a pump cover for an electronic oil pump includes a pump cover body 10, an isolation ring 20 connected inside the pump cover body 10, and a filter device 30 sleeved inside the isolation ring 20.
[0041] Continue to refer to Figure 1 Please refer to them together. Figure 3 , Figure 3 yes Figure 2 An enlarged view of circle A shown. Figure 1 and Figure 3 As shown, the pump cover body 10 includes a first cover 11 and a second cover 12 connected to the outer wall of the first cover 11. The first cover 11 and the second cover 12 are connected. A limiting platform 121 is provided on the inner wall of the second cover 12. The limiting platform 121 cooperates with the second cover 12 to form an installation groove 12A. A guide groove 12B is provided on the inner wall of the installation groove 12A. Specifically, the first cover 11 and the second cover 12 are both cylindrical. The guide groove 12B is distributed in a ring around the center of the second cover 12 on the inner wall of the installation groove 12A. It should be noted that the pump cover body 10 is made of thermosetting plastic or thermoplastic material.
[0042] refer to Figure 4 , Figure 4 This is a perspective view of the isolation ring and filter device in the pump cover of an electronic oil pump according to this application. Figure 4 As shown, after the isolation ring 20 is engaged with the mounting groove 12A, the isolation ring 20 abuts against the limiting platform 121, and the outer wall of the isolation ring 20 is tightly fitted with the inner wall of the mounting groove 12A to prevent particulate impurities from passing between the outer wall of the isolation ring 20 and the inner wall of the mounting groove 12A. A guide head 21 is provided on the outer wall of the isolation ring 20. The bottom of the guide head 21 is on the same plane as the bottom of the isolation ring 20. The guide head 21 engages with the guide groove 12B. The isolation ring 20 is circular in shape, and the guide heads 21 are distributed in a ring on the outer wall of the isolation ring 20 with the center of the isolation ring 20 as the center.
[0043] Continue to refer to Figure 4 Please refer to them together. Figure 5 and Figure 6 , Figure 5 This is a schematic diagram of the isolation ring in the pump cover of an electronic oil pump according to another perspective of this application. Figure 6 This is another structural schematic diagram of the isolation ring in the pump cover of an electronic oil pump according to this application. Figure 4 , Figure 5 and Figure 6 As shown, the side wall of the isolation ring 20 is also provided with at least one set of forward-moving grooves and at least one set of reverse-moving grooves. One set of forward-moving grooves includes at least three forward-moving grooves, and one set of reverse-moving grooves includes at least three reverse-moving grooves. The inclination angle of the forward-moving groove is α, and the inclination angle of the reverse-moving groove is β, where 0° < α < 90°, 90° < β < 180°, and further, α and β are complementary. Here, when the isolation ring 20 is inside the mounting groove 12A, the isolation ring 20 will be completely placed within the mounting groove 12A, making it very inconvenient for the operator to install and remove the isolation ring 20. During operation, the operator can rotate the isolation ring 20 clockwise or counterclockwise by moving it in the opposite direction along the inclination angle of the forward or reverse-moving groove, effectively improving the convenience of operation during the installation or removal of the isolation ring 20.
[0044] Continue to refer to Figure 6 Please refer to them together. Figure 7 , Figure 7 This is a schematic cross-sectional view of the pump cover body in an electronic oil pump according to this application. Figure 6 and Figure 7As shown, the height L2 of the isolation ring 20 is equal to the depth L1 of the mounting groove 12A, i.e., L1 = L2. Furthermore, the isolation ring 20 is made of aluminum alloy. Here, the forward-moving groove refers to the ability of the isolation ring 20 to rotate clockwise when it is inside the mounting groove 12A, and the reverse-moving groove refers to the ability of the isolation ring 20 to rotate counterclockwise when it is inside the mounting groove 12A.
[0045] Continue to refer to Figure 6 Please refer to them together. Figure 8 , Figure 8 This is a cross-sectional structural schematic diagram of a filter device in the pump cover of an electronic oil pump according to this application. Figure 6 and Figure 8 As shown, the filter device 30 and the isolation ring 20 are either interference fit or tightly fitted, as long as particulate impurities do not pass between the filter device 30 and the isolation ring 20. The height L3 of the filter device 30 is equal to the height L2 of the isolation ring 20, i.e., L2 = L3. The filter device 30 includes a frame 31 and a filter screen 32 connected to the frame 31. The frame 31 is made of plastic. Here, since both the filter device 30 and the pump cover body 10 are made of plastic, and the pump body generates a lot of heat during operation, over time, the filter device 30 and the pump cover body 10, made of plastic, will stick together. As a result, during the removal of the filter device 30, it is not completely removed, and there are residual filter devices 30 stuck to the pump cover body 10, which is very inconvenient to clean and affects the replacement of the filter device 30. By using the isolation ring 20 to isolate the filter device 30 and the pump cover body 10, the oil pump will not cause the filter device 30 to stick to the pump cover body 10 during daily use, and the convenience of operation is improved when the filter device 30 needs to be replaced.
[0046] Here, the second cover 12 in the pump cover body 10 is connected to the outer wall of the first cover 11, and the first cover 11 and the second cover 12 are connected. The inner wall of the second cover 12 is provided with a limiting platform 121, which cooperates with the second cover 12 to form an installation groove 12A. The isolation ring 20 cooperates with the installation groove 12A inside the pump cover body 10, and after the isolation ring 20 cooperates with the installation groove 12A, the isolation ring 20 abuts against the limiting platform 121. At the same time, the filter device 30 is sleeved inside the isolation ring 20. The filter device 30 includes a frame 31 and a filter screen 32 connected to the frame 31, so that the pump cover for the electronic oil pump can filter particulate impurities during use, effectively improving the reliability and stability of the electronic oil pump.
[0047] To facilitate understanding, the working principle of this application is further described as follows: When replacing the filter device 30, the pump cover of the electronic oil pump uses a relatively hard thin plate to move the reverse actuation groove, causing the isolation ring 20 on which the filter device 30 is fitted to rotate in the reverse direction. This causes the guide clamp 21 to move in the reverse direction inside the guide groove 12B until the guide clamp 21 moves to the guide position of the guide groove 12B. Then, the thin plate continues to pull the isolation ring 20 outward through the reverse actuation groove or the forward actuation groove, causing the guide clamp 21 to move along the guide position until the isolation ring 20 and the filter device 30 are in contact with the filter device 30. After the pump cover body 10 is detached, the operator knocks the damaged filter device 30 until it separates from the isolation ring 20. After replacing the filter device 30 with a new one and interfering with the isolation ring 20, the operator aligns it with the mounting groove 12A and presses the isolation ring 20 firmly. At the same time, the guide clip 21 moves along the guide position until the isolation ring 20 abuts against the limiting platform 121. Then, the operator uses a hard thin piece to move the forward moving groove so that the isolation ring 20 moves clockwise until the guide clip 21 abuts against the end of the guide groove 12B.
[0048] Although this application has been described and illustrated with reference to specific embodiments thereof, such description and illustration are not limiting of this application. It will be readily understood by those skilled in the art that various changes can be made and equivalent elements can be substituted within embodiments without departing from the true spirit and scope of this application as defined by the appended claims. Illustrations may not be drawn to scale. Differences may exist between the technical representation in this application and actual implementation due to variables in the manufacturing process, etc. Other embodiments of this application may exist that are not specifically described. The description and illustrations should be considered illustrative rather than restrictive. Modifications can be made to adapt particular circumstances, materials, composition, methods, or processes to the objectives, spirit, and scope of this application. All such modifications fall within the scope of the appended claims. While the methods disclosed herein have been described with reference to specific operations performed in a particular order, it should be understood that these operations can be combined, subdivided, or reordered to form equivalent methods without departing from the teachings of this application. Therefore, unless specifically indicated herein, the order and grouping of operations do not limit this application.
Claims
1. A pump cover for an electric oil pump, characterized by comprising: include Pump cover body (10), the pump cover body (10) includes a first cover (11) and a second cover (12) connected to the outer side wall of the first cover (11). The first cover (11) and the second cover (12) are connected. A limiting platform (121) is provided on the inner side wall of the second cover (12). The limiting platform (121) cooperates with the second cover (12) to form an installation groove (12A). An isolation ring (20) is connected inside the pump cover body (10). After the isolation ring (20) is engaged with the mounting groove (12A), the isolation ring (20) abuts against the limiting platform (121). A filter device (30) is fitted inside the isolation ring (20), the filter device (30) includes a frame (31) and a filter screen (32) connected to the frame (31).
2. The pump cover for an electric oil pump according to claim 1, characterized by The inner wall of the mounting groove (12A) is provided with a guide slot (12B), and the outer wall of the isolation ring (20) is provided with a guide head (21). The bottom of the guide head (21) is on the same plane as the bottom of the isolation ring (20), and the guide head (21) cooperates with the guide slot (12B).
3. The pump cover for an electric oil pump according to claim 1, characterized by The isolation ring (20) is also provided with at least one set of forward actuation grooves (22) and at least one set of reverse actuation grooves (23) on its side wall.
4. The pump cover for an electric oil pump according to claim 3, characterized by A set of forward actuation slots (22) includes at least three forward actuation slots (22), and a set of reverse actuation slots (23) includes at least three reverse actuation slots (23).
5. The pump cover for an electric oil pump according to claim 4, characterized by The inclination angle of the forward actuation groove (22) is α, and the inclination angle of the reverse actuation groove (23) is β, and 0°<α<90°, 90°<β<180°.
6. The pump cover for an electric oil pump according to claim 5, characterized by α and β are complementary.
7. The pump cover for an electric oil pump according to claim 1, characterized by The height L2 of the isolation ring (20), the depth L1 of the mounting groove (12A) and the height L3 of the filter device (30) are all equal, L1 = L2 = L3.
8. The pump cover for an electric oil pump according to claim 1 or 7, characterized by The filter device (30) and the isolation ring (20) are interference fit.
9. The pump cover for an electric oil pump according to claim 2, characterized by Both the first cover (11) and the second cover (12) are cylindrical in shape. The guide slot (12B) is distributed in a ring around the center of the second cover (12) on the inner wall of the mounting groove (12A).
10. The pump cover for an electric oil pump according to claim 9, characterized by The isolation ring (20) is circular in shape, and the guide head (21) is distributed in a ring on the outer side wall of the isolation ring (20) with the center of the isolation ring (20) as the center.