Improved split type oil duct structure of engine oil filtering base and oil cooler connecting base in automobile
By designing a split oil passage structure between the oil filter base and the oil cooler connector, and using aluminum-magnesium alloy material and laser welding technology, the problems of poor cooling effect and material inability to withstand high temperatures are solved, achieving efficient cooling and extended service life.
Patent Information
- Application Number
- CN202423230075.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The existing automotive oil filter base is not tightly connected to the oil cooler, resulting in poor cooling effect. In addition, the plastic material is not resistant to high temperatures, has a short service life, and is prone to aging and failure.
The oil filter base is made of aluminum-magnesium alloy, and a split oil passage structure is designed between the oil filter base and the oil cooler connection seat. Two parallel circulating cooling channels are added, and the oil cooler is in close contact with the oil cooler through the oil cooler connection seat. The process is improved to aluminum profile alloy machining and laser welding, and the threaded plug structure is eliminated.
It improved cooling efficiency, extended product lifespan, reduced failure rate and customer complaints, and enhanced product quality.
Smart Images

Figure CN223497971U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an automotive internal oil filter base, and more particularly to an improved structure of a split oil passage between the automotive internal oil filter base and the oil cooler connection seat. Background Technology
[0002] Currently, the early versions of this product on the market featured a plastic base made of PA66+GF35 steel, and used a welded plastic plug structure. Because this product is installed at the bottom of the engine, in a high-temperature operating environment, market feedback indicates a short product lifespan and numerous customer complaints. The plastic parts are not resistant to hydrolysis or high temperatures, exhibiting poor thermal stability, leading to premature aging and failure. The welded plug also exhibits defects such as oil leakage and weld detachment. These issues negatively impact the product's quality. The original aluminum base (oil filter base) had internal oil passages, but its distance from the oil cooler was significant, resulting in poor cooling performance.
[0003] The existing automotive oil filter holders are directly fixed to the oil cooler without a connecting bracket, resulting in insufficient cooling performance. Utility Model Content
[0004] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing an improved structure for a split oil passage between the oil filter base and the oil cooler connection seat in an automobile.
[0005] To achieve the above objectives, the present invention adopts the following measures:
[0006] An improved oil passage structure with a split design for an automotive oil filter base and an oil cooler connector includes an oil filter base. The lower part of the oil filter base has an oil inlet, an oil outlet, and an oil return port. The end of the oil filter base has an antifreeze inlet, and the bottom has a first outlet and a second outlet connected to the antifreeze inlet. A filter element and a bypass valve are installed inside one end of the oil filter base. A filter cap is threaded onto the end of the oil filter base near the end where the filter element and bypass valve are installed. An oil cooler is installed on the upper part of the oil filter base away from the filter element. An oil cooler connector is provided between the oil filter base and the oil cooler. Two parallel circulating cooling channels are arranged parallel to each other on the surface of the oil cooler connector near the oil cooler. The two ends of the two parallel circulating cooling channels are respectively connected to the oil filter base and the oil cooler.
[0007] The oil cooler connecting seat is clamped and fixed between the oil filter base and the oil cooler, and several screws and internal Torx screws pass through the oil cooler and the oil cooler connecting seat in sequence and are threaded to the oil filter base;
[0008] The oil inlet is equipped with an oil inlet sealing ring, and the oil outlet is equipped with an oil outlet sealing ring; both the first and second water outlets are equipped with water outlet sealing rings, the oil return outlet is equipped with an oil return outlet sealing ring, and the filter cover is fitted with a filter cover sealing ring.
[0009] The process hole of the oil return port is connected to an oil return port sealing screw, and the process hole of the water channel of the oil filter base is connected to a water channel process hole sealing screw.
[0010] The oil filter base is provided with an internally threaded shaft, which passes through the seat hole on the oil cooler connector. The screw and the internal Torx screw are threaded into the threaded hole on the internally threaded shaft.
[0011] A cooler sealing ring is provided between the oil cooler and the oil cooler connection seat to seal two parallel circulating cooling channels;
[0012] A temperature sensor and a pressure sensor are installed at the end of the oil filter base away from the filter cover;
[0013] The oil filter base is made of aluminum-magnesium alloy, and the filter cover is made of aluminum alloy.
[0014] The two parallel circulating cooling channels are provided with sealing grooves along their edges, and the cooler sealing ring is pressed into the sealing grooves;
[0015] The oil filter base has an L-shaped structure, and a cavity is provided at the connection between the oil filter base and the oil cooler connector. The bottom surface of the cavity is an inclined structure.
[0016] The beneficial effects of this utility model are as follows: The design of the oil cooler connector and the oil filter base is a separate structure. The oil cooler connector is designed with oil passages, which are in close contact with the oil cooler, accelerating the cooling and oil circuit connection, improving the cooling efficiency, effectively reducing the risk of high temperature failure during long-term vehicle operation, increasing product lifespan, reducing product failure rate and customer complaint rate, and also improving product quality. Attached Figure Description
[0017] Figure 1 This is an exploded structural diagram of the present invention.
[0018] Figure 2 This is a schematic diagram of the lower structure of this utility model.
[0019] Figure 3 This is a schematic diagram of the upper structure of this utility model.
[0020] Figure 4 This is a schematic diagram of the separate structure of the oil filter base and the oil cooler connection seat of this utility model. Detailed Implementation
[0021] An improved split-type oil passage structure for an automotive internal oil filter base and oil cooler connection seat includes an oil filter base 6. The lower part of the oil filter base 6 has an oil inlet 7, an oil outlet 2, and an oil return port 5. The end of the oil filter base 6 has an antifreeze inlet 1, and the bottom has a first outlet 3 and a second outlet 4 communicating with the antifreeze inlet 1. A filter element 601 and a bypass valve 602 are installed inside one end of the oil filter base 6. A filter cover 6 is threadedly connected to the end of the oil filter base 6 near the end where the filter element 601 and bypass valve 602 are installed. 03. An oil cooler 9 is installed on the upper part of the oil filter base 6 away from the filter element 601. An oil cooler connecting seat 8 is provided between the oil filter base 6 and the oil cooler 9. Two parallel circulating cooling channels 808 are provided on the surface of the oil cooler connecting seat 8 near the oil cooler 9. The two ends of the two parallel circulating cooling channels 808 are respectively connected to the oil filter base 6 and the oil cooler 9. Both ends of the two parallel circulating cooling channels 808 are provided with through holes for connecting the oil filter base 6 and the oil cooler 9.
[0022] like Figure 1-4 As shown, the improvement of this application is that an oil cooler connecting seat 8 is added between the oil filter base 6 and the oil cooler 9. The three are fixed together by fasteners. Two parallel circulating cooling channels 808 are provided on the oil cooler connecting seat 8. The two ends of the two parallel circulating cooling channels 808 are respectively connected to the oil filter base 6 and the oil cooler 9.
[0023] The process hole oil passage and bolt plug sealing structure at the rear end have been improved to a front end face inclined hole main oil passage structure.
[0024] The auxiliary oil passage in the base has been improved from the original oil filter base 6 to a new auxiliary oil passage structure with two parallel circulating cooling channels 808 added to the upper end face of the oil cooler connector 8. The two parallel circulating cooling channels 808 added to the upper end face of the oil cooler connector 8 serve as the carrier for connection, realizing the auxiliary supply of engine oil, accelerating the cooling and oil circuit connection.
[0025] The new structure's base is made of aluminum, specifically: the oil filter base 6 is made of aluminum-magnesium alloy; the oil circuit structure of the oil filter base assembly consists of two parallel channels (two parallel circulating cooling channels 808), and the sealing of the process hole at one end of the base oil passage is machined from aluminum profile alloy, with tight fit and press fitting followed by laser welding, eliminating the old threaded plug structure.
[0026] The oil cooler connecting seat 8 is clamped and fixed between the oil filter base 6 and the oil cooler 9. Several screws 100 and internal Torx screws 901 pass through the oil cooler 9 and the oil cooler connecting seat 8 in sequence and are threaded to the oil filter base 6.
[0027] The oil inlet 7 is provided with an oil inlet sealing ring 106, and the oil outlet 2 is provided with an oil outlet sealing ring 103; the first water outlet 3 and the second water outlet 4 are both provided with water outlet sealing rings 104, the oil return outlet 5 is provided with an oil return outlet sealing ring 105, and the filter cover 603 is fitted with a filter cover sealing ring 607.
[0028] The oil return port 5 has an oil return port sealing screw 107 connected to the process hole 17, and the oil filter base 6 has a water passage process hole sealing screw 108 connected to the water passage process hole 18. Specifically, the process hole is sealed by machining aluminum alloy profiles, pressing and fitting, and then laser welding, eliminating the old threaded plug structure.
[0029] The oil filter base 6 is provided with a threaded shaft 666, which passes through a seat hole 806 on the oil cooler connecting seat 8. The screw 100 and the internal Torx screw 901 are threaded into the threaded hole 668 on the threaded shaft 666. While serving a connecting function, the threaded shaft 666 also provides a positioning function in its engagement with the seat hole 806.
[0030] The oil cooler 9 and the oil cooler connecting seat 8 are provided with a cooler sealing ring 902 for sealing two parallel circulating cooling channels 808.
[0031] A temperature sensor 101 and a pressure sensor 102 are installed at the end of the oil filter base 6 away from the filter cover 603.
[0032] The oil filter base 6 is made of aluminum-magnesium alloy, and the filter cover 603 is made of aluminum alloy.
[0033] The two parallel circulating cooling channels 808 are provided with sealing grooves 810 along their edges, and the cooler sealing ring 902 is pressed into the sealing grooves 810.
[0034] The oil filter base 6 has an L-shaped structure. A cavity 600 is provided at the connection between the oil filter base 6 and the oil cooler connecting seat 8. The bottom surface of the cavity 600 is an inclined structure.
[0035] The improved solution of this utility model has significant advantages, specifically: the new oil filter base 6 has an aluminum base that directly connects to the auxiliary oil passage. Instead of the original internal oil passage, the oil cooler connector 8 has two parallel circulating cooling channels 808, providing auxiliary oil supply to the engine and accelerating cooling and oil circuit connection. Previously, the internal oil passage in the aluminum base was far from the oil cooler 9, resulting in poor cooling. With the improvement of this solution, the two parallel circulating cooling channels 808 are in close contact with the oil cooler 9, resulting in better cooling and improved cooling efficiency. The two parallel circulating cooling channels 808 are typically angled to increase their length and further enhance cooling efficiency.
[0036] In the application of this solution, the oil circuit is as follows: Engine oil enters the oil filter assembly from the oil inlet 7, is filtered by the filter element 601, which has a bypass valve 602, the structure of which is the same as the existing structure, and then enters the oil cooler 9 for cooling. The oil also passes through two parallel circulating cooling channels 808, is cooled, and flows directly back to the engine. The filtered and cooled oil flows back to the engine from the oil outlet 2 for lubrication. When the filter element 601 is replaced, the excess oil inside flows back to the engine from the oil outlet 2.
[0037] Water system: The vehicle's antifreeze enters the oil filter base assembly from the antifreeze inlet 1, then enters the oil cooler 9 to carry away the heat from the high-temperature engine oil and cool it down. Then, it flows back to the vehicle's circulating cooling system and air conditioning system through the first outlet 3 and the second outlet 4, respectively.
Claims
1. An improved structure for a split oil passage between an oil filter base and an oil cooler connector in an automobile, comprising an oil filter base (6), an oil inlet (7), an oil outlet (2), and an oil return outlet (5) at the lower part of the oil filter base (6), an antifreeze inlet (1) at the end of the oil filter base (6), and a first outlet (3) and a second outlet (4) communicating with the antifreeze inlet (1) at the bottom, a filter element (601) and a bypass valve (602) installed inside one end of the oil filter base (6), a filter cover (603) threadedly connected to the end of the oil filter base (6) near the end where the filter element (601) and the bypass valve (602) are installed, and an oil cooler (9) is installed on the upper part of the oil filter base (6) away from the filter element (601), characterized in that: An oil cooler connector (8) is provided between the oil filter base (6) and the oil cooler (9). Two parallel circulating cooling channels (808) are provided on the side of the oil cooler connector (8) near the oil cooler (9). The two ends of the two parallel circulating cooling channels (808) are respectively connected to the oil filter base (6) and the oil cooler (9).
2. The improved structure of the split oil passage between the automotive internal oil filter base and the oil cooler connection seat according to claim 1, characterized in that: The oil cooler connector (8) is clamped and fixed between the oil filter base (6) and the oil cooler (9). Several screws (100) and internal Torx screws (901) pass through the oil cooler (9) and the oil cooler connector (8) in sequence and are threaded to the oil filter base (6).
3. The improved structure of the split oil passage between the automotive internal oil filter base and the oil cooler connection seat according to claim 2, characterized in that: An oil inlet sealing ring (106) is provided at the oil inlet (7), and an oil outlet sealing ring (103) is provided at the oil outlet (2); an outlet sealing ring (104) is provided at the first water outlet (3) and the second water outlet (4); an oil return sealing ring (105) is provided at the oil return outlet (5); and a filter cover sealing ring (607) is fitted on the filter cover (603).
4. The improved structure of the split oil passage between the automotive internal oil filter base and the oil cooler connection seat according to claim 3, characterized in that: The oil return port (5) is connected to the process hole (17) with an oil return port sealing screw (107), and the oil filter base (6) is connected to the water process hole (18) with a water process hole sealing screw (108).
5. The improved structure of the split oil passage between the automotive internal oil filter base and the oil cooler connection seat according to claim 4, characterized in that: The oil filter base (6) is provided with an internally threaded shaft (666), which passes through the seat hole (806) on the oil cooler connecting seat (8). The screw (100) and the internal Torx screw (901) are threaded into the threaded hole (668) on the internally threaded shaft (666).
6. The improved structure of the split oil passage between the automotive internal oil filter base and the oil cooler connection seat according to claim 5, characterized in that: The oil cooler (9) and the oil cooler connecting seat (8) are provided with a cooler sealing ring (902) for sealing two parallel circulating cooling channels (808).
7. The improved structure of the split oil passage between the automotive internal oil filter base and the oil cooler connection seat according to claim 6, characterized in that: A temperature sensor (101) and a pressure sensor (102) are installed at the end of the oil filter base (6) away from the filter cover (603).
8. The improved structure of the split oil passage between the automotive internal oil filter base and the oil cooler connection seat according to claim 7, characterized in that: The oil filter base (6) is made of aluminum-magnesium alloy, and the filter cover (603) is made of aluminum alloy.
9. The improved structure of the split oil passage between the automotive internal oil filter base and the oil cooler connection seat according to claim 8, characterized in that: The two parallel circulating cooling channels (808) are provided with sealing grooves (810) along their edges, and the cooler sealing ring (902) is pressed into the sealing grooves (810).
10. The improved structure of the split oil passage between the automotive internal oil filter base and the oil cooler connection seat according to claim 9, characterized in that: The oil filter base (6) has an L-shaped structure. A cavity (600) is provided at the connection between the oil filter base (6) and the oil cooler connecting seat (8). The bottom surface of the cavity (600) is an inclined structure.