A main body of an oil filter for an aluminum die casting machine

Abstract

The application relates to a main body of an aluminum die-casting machine oil filter, which comprises an aluminum main body formed by high-pressure die casting, is provided with a filter element mounting seat for mounting a filter element and a radiator mounting position for mounting a radiator, and is provided with a radiator oil inlet, a radiator oil outlet, a radiator coolant inlet and a radiator coolant outlet in the radiator mounting position; the radiator oil inlet and the radiator oil outlet are communicated through a first pipeline; and an opening groove, which is not communicated with the radiator oil inlet, the radiator oil outlet, the radiator coolant inlet and the radiator coolant outlet, is arranged on one side of the main body in the radiator mounting position; and a reinforcing structure connected with the first pipeline is arranged in the opening groove. The main body is provided with the opening groove, gas holes formed in the die-casting process are reduced, material is saved, the oil filtering effect is good, and heat dissipation is achieved.

Description

Technical Field

[0001] This invention relates to the field of oil filters, specifically to the main body of an aluminum die-cast oil filter. Background Technology

[0002] An oil filter is usually installed at the bottom of the engine of a gasoline-powered car. The oil filter can filter impurities such as dust, metal particles, carbon deposits and soot particles in the oil, thereby protecting the engine.

[0003] Existing oil filter assemblies typically use injection-molded plastic materials. Plastic materials have poor structural strength, therefore requiring multiple reinforcing ribs on their surface and metal inserts in the mounting holes for fastening. Furthermore, plastic materials have poor heat resistance; due to the high temperatures generated by the engine during operation, plastic oil filter assemblies are prone to deformation and aging, affecting their sealing performance and lifespan. Currently, filter assemblies using aluminum casting are emerging, such as the automotive oil filter assembly disclosed in invention patent CN215719024U. ： The main body (1) is formed by casting aluminum material. The upper part of the main body is provided with an oil filling hole (2), an engine oil outlet hole (3), a first engine oil return hole (4), a second engine oil return hole (5), and an engine fixing hole (6). The main body is fixed to the engine by fasteners passing through the engine fixing hole (6). The lower part of the main body is provided with a filter element mounting seat (7), a heat dissipation oil inlet hole (8), a first heat dissipation oil outlet hole (9), a second heat dissipation oil outlet hole (10), and a radiator fixing hole (11). A radiator is provided under the main body and is fixed to the radiator fixing hole (11) by fasteners.

[0004] The upper part of the heat dissipation oil inlet (8) is connected to the engine oil outlet (3), and the lower part of the heat dissipation oil inlet (8) is connected to the radiator inlet. The radiator outlet is connected to the first heat dissipation oil outlet (9) and the second heat dissipation oil outlet (10). The first heat dissipation oil outlet (9) is connected to the filter element mounting seat (7). The filter element is installed in the filter element mounting seat. The filter element mounting seat is connected to the first engine return oil hole (4). The second heat dissipation oil outlet (10) is connected to the second engine return oil hole (5). However, according to the working principle described in its instruction manual, when the engine is working, the engine oil in the engine enters the main body through the engine oil outlet, and then enters the radiator through the heat dissipation oil inlet below the main body. The radiator dissipates heat and cools the oil. After cooling, the oil flows back into the main body through the first heat dissipation oil outlet and the second heat dissipation oil outlet. The first heat dissipation oil outlet is connected to the filter element mounting seat.

[0005] Some engine oil enters the filter housing. After the oil passes through the filter element in the housing to remove impurities, it flows back into the engine through the first engine oil return hole. However, the oil flowing to the second cooling oil outlet hole flows directly back into the engine through the second engine oil return hole. It can be seen that due to its unreasonable structure, it can only filter a portion of the engine oil, while the other portion flows directly back into the engine. The filtration effect is poor. Furthermore, it relies solely on the cooling effect of the radiator to cool the fuel, which is also poor. Improvement is urgently needed.

[0006] For this purpose, the applicant previously filed a Chinese invention patent application for a radiator-mounted aluminum die-cast automotive oil filter assembly, application number 202210242084.4. This assembly comprises an aluminum body formed by high-pressure die casting, a filter element mounting seat for installing a filter element, and a radiator mounting position for installing a radiator. A filter element is inserted into the filter element mounting seat, and a radiator is installed in the radiator mounting position. A main body cover is installed on the filter element mounting seat to confine the filter element within the seat. A bypass valve communicating with the filter element is located at one end of the filter element near the main body cover. A connection is made at one end of the main body to... The filter element mounting base is connected to the main body oil inlet. The radiator mounting position has a radiator oil inlet, a radiator oil outlet, a radiator coolant inlet, and a radiator coolant outlet. The radiator oil inlet and the radiator oil outlet are connected. The main body also has a main body coolant inlet and at least one main body coolant outlet. The main body coolant inlet is connected to the radiator coolant inlet, and the radiator coolant outlet is connected to the main body coolant outlet. The main body also has a temperature sensor interface and a pressure sensor interface. A temperature sensor is installed in the temperature sensor interface, and a pressure sensor is installed in the pressure sensor interface.

[0007] The filter element installed in the filter element mounting bracket filters all the oil entering the main body of the oil filter assembly, ensuring the filtration effect. Furthermore, by introducing coolant from the engine cooling system into the filter, the oil passing through the radiator is cooled simultaneously, resulting in better cooling.

[0008] However, in actual production, it was found that because the filter body is made of die-cast aluminum, the aluminum material is relatively thick, and air holes are easily generated inside during the die-casting process. The presence of air holes can lead to leakage, which can cause the filter assembly to fail. On the other hand, the existing aluminum body has a complex internal structure, which is not conducive to improving production efficiency. It is necessary to improve this. Summary of the Invention

[0009] The technical problem to be solved by the present invention is to address the shortcomings of the prior art.

[0010] A body for an aluminum die-casting machine oil filter is provided.

[0011] To achieve the above objectives, the present invention provides the following technical solution: a main body of an aluminum die-casting oil filter, characterized in that: it includes an aluminum main body formed by high-pressure die casting, the main body is provided with a filter element mounting seat for installing a filter element and a radiator mounting position for installing a radiator, a filter element is inserted in the filter element mounting seat, and a radiator is installed in the radiator mounting position, characterized in that: the radiator mounting position is provided with a radiator oil inlet, a radiator oil outlet, a radiator coolant inlet, and a radiator coolant outlet, the radiator oil inlet and the radiator oil outlet are connected by a first pipe, the main body is provided with an opening groove on one side of the radiator mounting position that is not connected to the radiator oil inlet, the radiator oil outlet, the radiator coolant inlet, and the radiator coolant outlet, and the opening groove is provided with a reinforcing structure connected to the first pipe.

[0012] Using the above technical solution, the existing aluminum base body has a filter element mounting seat on one side for installing the filter element, and a pipe for installing sensor components such as temperature sensors and pressure sensors on the other side. Although the radiator mounting position in the middle has radiator oil inlet, radiator oil outlet, radiator coolant inlet and radiator coolant outlet on both sides, the radiator mounting position only has a pipe connecting the radiator oil inlet and radiator oil outlet. Therefore, the material on both sides of the pipe is relatively thick, which easily generates pores during the casting process, thereby causing leakage and resulting in a low product yield. The present invention reduces the material thickness, avoids the formation of pores, and improves the yield by opening an opening groove at this position that is evenly distributed and connected to the radiator oil inlet, radiator oil outlet, radiator coolant inlet and radiator coolant outlet.

[0013] The main body of the aforementioned aluminum die-casting machine oil filter can be further configured such that the reinforcing structure includes at least one reinforcing inclined surface disposed within the opening groove, one end of which is connected to the first pipe and the other end of which is connected to the interior of the main body.

[0014] By adopting the above technical solution, the strength of the first pipe is improved by setting a reinforcing slope.

[0015] The main body of the aforementioned aluminum die-casting machine oil filter can be further configured as follows: the main body has a main body oil inlet at the lower part of the filter element mounting seat, which communicates with the interior of the filter element mounting seat; the main body has a main body oil outlet at the lower part of the radiator mounting position, which communicates with the radiator oil outlet; the filter element mounting seat has a filter element mounting seat oil outlet, which communicates with the radiator oil inlet; a flow divider valve is installed at the radiator oil inlet; a temperature sensor interface and a pressure sensor interface, respectively, communicate with the radiator oil outlet, are provided at the other end of the main body opposite to the filter element mounting seat; the end of the main body with the pressure sensor interface also has a main body coolant inlet, which communicates with the radiator coolant inlet; and the main body has at least one main body coolant outlet at the lower part of the filter element mounting seat, which communicates with the radiator coolant outlet.

[0016] Using the above technical solution, the working principle of this invention is as follows: engine oil from inside the engine enters the filter element mounting seat through the main body oil inlet and is filtered by the filter element installed in the filter element mounting seat. The filtered oil flows from the oil outlet of the filter element mounting seat to the radiator oil inlet. Most of the oil enters the radiator installed in the radiator mounting position from the radiator oil inlet for cooling. The cooled oil flows to the radiator oil outlet, and a small portion flows from the radiator oil inlet through the diverter valve and the first pipe into the radiator oil outlet. Most of the oil flowing into the radiator oil outlet flows into the engine through the main body oil outlet, and a small portion flows to the temperature sensor installed at the temperature sensor interface and the pressure sensor. The pressure sensor is installed inside the sensor interface. Meanwhile, the engine cooling system coolant enters from the main coolant inlet, flows to the radiator coolant inlet, then into the radiator, and finally exits from the radiator coolant outlet. The coolant flowing to the radiator outlet returns to the engine cooling system through the main coolant outlet. A diverter valve at the radiator oil outlet ensures that most of the engine oil flows into the radiator for cooling, while a small portion flows into the temperature and pressure sensors to detect oil temperature and pressure. This portion of oil, after detection, flows back into the engine through the main coolant outlet. See [link to relevant documentation]. Figure 6 The diagram shown is an exploded view of the coolant outlet portion of a certain type of existing oil filter assembly with a plastic body. It includes a main body a, a first mounting part b, and a second mounting part c. In the prior art, the main coolant inlet is formed by splicing two external plastic parts. However, after a period of use, the plastic parts and seals of this structure are prone to aging and leakage. In contrast, the coolant outlet of this invention is integrally formed with the main body, which eliminates the defects of the existing structure, improves the sealing performance, and reduces the number of leakage points.

[0017] The main body of the aforementioned aluminum die-casting machine oil filter can be further configured as follows: the end of the filter element mounting base away from the main body is a main body cover mounting part; a central tube column receiving cavity is provided in the middle of the filter element mounting base; the end of the central tube column receiving cavity away from the main body cover mounting part is connected to the oil outlet of the filter element mounting base; an isolation ring extending towards the main body cover mounting part is provided in the central tube column receiving cavity; the position of the main body oil inlet is lower than the isolation ring; and a main body oil drain port communicating with the central tube column receiving cavity is provided on one side of the main body.

[0018] Using the above technical solution, after assembly, one end of the filter element's central column is inserted into the central column's accommodating cavity to form a circumferentially sealed oil outlet. The main body cover mounting part is screwed on to limit the filter element inside the filter element mounting seat. Under normal working conditions, the engine oil entering through the main body's oil inlet passes through the filter element and the central column and directly enters the oil outlet of the central column located in the central column's accommodating cavity. From the oil outlet, it enters the oil outlet of the filter element mounting seat and exits. Due to the presence of the isolation ring and the circumferentially sealed oil outlet of the central column, the engine oil will not enter the main body's drain port after entering the filter element mounting seat. When it is necessary to change the engine oil or filter element, open the main body cover and use the drain assembly to pop up the central column, causing the oil outlet of the central column to separate from the central column's accommodating cavity. At this time, the engine oil will exit from the main body's drain port, realizing quick replacement of engine oil and filter element without engine oil splashing.

[0019] The beneficial effects of this invention are: the main body has an open groove, which reduces the formation of air holes during the die casting process and saves materials; the oil filtration effect is good and the heat dissipation effect is better.

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of an oil filter having an embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the exploded structure of an oil filter according to an embodiment of the present invention.

[0023] Figure 3 This is a three-dimensional structural diagram of an embodiment of the present invention.

[0024] Figure 4 This is a top view of an embodiment of the present invention and the filter element after installation.

[0025] Figure 5 for Figure 4 A cross-sectional schematic diagram of section AA.

[0026] Figure 6 This is a schematic diagram of the exploded structure of the main coolant outlet of an oil filter in the prior art. Detailed Implementation

[0027] See Figures 1-6The following describes the main body of an aluminum die-cast oil filter: It includes an aluminum body 5 formed by high-pressure die casting. The body 5 has a filter element mounting seat A8 for mounting a filter element 3 and a radiator mounting position 52 for mounting a radiator 8. The radiator mounting position 52 has a radiator oil inlet A2, a radiator oil outlet A3, a radiator coolant inlet B2, and a radiator coolant outlet B3. The radiator oil inlet A2 and the radiator oil outlet A3 are connected by a first pipe 53. The body 5 has an opening groove 54 on one side of the radiator mounting position 52 that is not connected to the radiator oil inlet A2, the radiator oil outlet A3, the radiator coolant inlet B2, or the radiator coolant outlet B3. The opening groove 54 contains... The reinforcing structure connected to the first pipe 53 includes at least one reinforcing inclined surface 541 located within the opening groove 54, one end of which connects to the first pipe 53 and the other end of which connects to the interior of the main body 5. The main body 5 has a main body oil inlet A1 at the lower part of the filter element mounting base A8, communicating with the interior of the filter element mounting base A8. The main body 5 has a main body oil outlet A6 at the lower part of the radiator mounting position 52, communicating with the radiator oil outlet A3. The filter element mounting base A8 has a filter element mounting base oil outlet A81 communicating with the radiator oil inlet A2. A diverter valve 12 is installed at the radiator oil inlet A2. A temperature sensor is located at the other end of the main body 5 opposite to the filter element mounting base A8, communicating with the radiator oil outlet A3. The main body 5 has an interface A4 and a pressure sensor interface A5. One end of the pressure sensor interface A5 is also provided with a main body coolant inlet B1, which communicates with the radiator coolant inlet B2. The main body 5 has a first main body coolant outlet B5 and a second main body coolant outlet B6, both communicating with the radiator coolant outlet B3, located at the lower part of the filter element mounting base A8. The filter element mounting base A8 has a main body cover mounting part 101. A central tube column receiving cavity A82 for inserting the filter element 3 is located in the middle of the filter element mounting base A8. The end of the central tube column receiving cavity A82 away from the main body cover 1 is connected to the filter element mounting base oil outlet A81. The central tube column receiving cavity A82 has an insulating layer extending towards the main body cover 1. Ring A83, the main body oil inlet A1 is located lower than the isolation ring A83, the main body 5 has a main body oil outlet A7 connected to the central column accommodating cavity A82 on one side, the central column 4 is located in the central column accommodating cavity A82 and forms a circumferentially sealed oil outlet 41 at one end, when processing the main body coolant first outlet B5 and the main body coolant second outlet B6, a first process hole and a second process hole will be formed on the main body 5, referred to as the first plug port A12 and the second plug port A13, respectively, and the first plug port A12 and the second plug port A13 are sealed by the first plug and the second plug respectively. In order to prevent leakage, the first plug 6 is provided with a first plug seal, and the second plug 20 is provided with a second seal 19;

[0028] The oil filter of the present invention includes an aluminum body 5 formed by high-pressure die casting. The body 5 has a filter element mounting seat A8 for mounting a filter element 3 and a radiator mounting position 52 for mounting a radiator 8. A filter element 3 is inserted into the filter element mounting seat A8. The filter element 3 includes filter paper and a central tube 4 disposed at the center of the filter paper. A radiator 8 is installed in the radiator mounting position 52. The radiator mounting position 52 has a radiator oil inlet A2, a radiator oil outlet A3, a radiator coolant inlet B2, and a radiator coolant outlet B3. The radiator oil inlet A2 and the radiator oil outlet A3 are connected by a first pipe 53. The body 5 has a portion on one side of the radiator mounting position 52 that connects to the radiator oil inlet A2, the radiator oil outlet A3, and the radiator coolant inlet B2. 2. An open slot 54 is provided in which the coolant outlets B3 of the radiator are not connected. The open slot 54 is provided with a reinforcing structure that connects to the first pipe 53. The reinforcing structure includes at least one reinforcing inclined surface 541 provided in the open slot 54, one end of which connects to the first pipe 53 and the other end of which connects to the interior of the main body 5. The main body 5 is provided with a main body oil inlet A1 at the lower part of the filter element mounting base A8, which communicates with the interior of the filter element mounting base A8. The main body A8 is provided with a main body oil outlet A6 at the lower part of the radiator mounting position 52, which communicates with the radiator oil outlet A3. The filter element mounting base A8 is provided with a filter element mounting base oil outlet A81 that communicates with the radiator oil inlet A2. A diverter valve 12 is installed at the radiator oil inlet A2. The other end of the main body 5, which is opposite to the filter element mounting base A8, is provided with a diverter valve A81 that communicates with the radiator oil outlet. Port A3 is connected to temperature sensor interface A4 and pressure sensor interface A5 respectively. Temperature sensor 13 is installed at temperature sensor interface A4 and pressure sensor 14 is installed at pressure sensor interface A5. The end of the main body 5 where pressure sensor 14 is installed is also provided with a main body coolant inlet B1 connected to radiator coolant inlet B2. The main body 5 has a main body coolant first outlet B5 and a main body coolant second outlet B6 connected to radiator coolant outlet B3 at the lower part of the filter element mounting base A8. The main body cover 1 is installed on the filter element mounting base A8. The filter element mounting base A8 has a central tube column receiving cavity A82 for inserting the central tube column 4 in the middle. A bypass valve 2 is installed at the end of the central tube column 4 near the main body cover 1. The central tube column receiving cavity A82... The end of the central column 4 away from the main body cover 1 is connected to the oil outlet A81 of the filter element mounting base. The central column housing cavity A82 is provided with an isolation ring A83 extending towards the main body cover 1. The main body oil inlet A1 is located below the isolation ring A83. The main body 5 has a main body oil drain port A7 connected to the central column housing cavity A82 on one side. The end of the central column 4 located in the central column housing cavity A82 forms a circumferentially sealed oil outlet 41. An oil drain assembly is provided between the isolation ring A82 and the oil outlet 41, which causes the central column 4 to disengage from the central column housing cavity A82 when the main body cover 1 is opened, so that the oil flows out from the main body oil drain port A7. The oil drain assembly includes a return spring 24. The central column 4 near the isolation ring A83 is provided with a spring mounting seat A11 for the spring 24 to abut.Spring 24 is sleeved outside the isolation ring A83, with one end abutting the bottom of the filter element mounting base A8 and the other end abutting the spring mounting base A11. A limiting ring A101 is provided in the spring mounting base A11 to restrict the spring 24 from disengaging. At least one set of barbed plates A9 are provided on the outside of the oil outlet 41, abutting the inner wall of the central tube column accommodating cavity A82. During the processing of the main body coolant first outlet B5 and the main body coolant second outlet B6, a first process hole and a second process hole are formed on the main body 5, referred to as the first plug port A12 and the second plug port A13. The first plug 6 and the second plug 19 respectively seal the first plug port A12 and the second plug port A13. To prevent leakage, the first plug 6 is provided with a first plug seal 7, and the second plug 20 is provided with a second seal 19. Pressure sensor 14 is installed at the pressure sensor interface A5 through a pressure sensor plug 28, and a pressure sensor seal 27 is provided at the connection point. A radiator 8 is installed on the main body 5. The radiator 8 is installed in the radiator mounting position 52 via a connecting threaded hole and is mounted to the radiator mounting position 52 by radiator fixing bolts 9. The main body is mounted to the engine by fixing bolts 10. A main body fixing bolt seal 11 is provided at the connection between the main body fixing bolts 10 and the main body 5. Similarly, to ensure sealing performance, radiator first seals 25 are provided at the connection between the radiator 8 and the main body 5 at the radiator oil inlet A2 and the radiator coolant inlet B2, respectively. Radiator second seals 26 are provided at the radiator oil outlet A3 and the radiator coolant outlet B3, respectively. A main body oil inlet seal 15 is provided at the main body oil inlet A1, a main body oil outlet seal 18 is installed at the main body oil outlet A6, and a main body oil drain seal 16 is installed at the main body drain outlet A7. This ensures that there will be no leakage after the main body is connected to the engine at these three locations. Similarly, main body coolant outlet seals 17 are installed at the main body coolant outlet first outlet B5 and the main body coolant outlet second outlet B6.

Claims

1. A body of an aluminum die-cast oil filter, comprising an aluminum body formed by high-pressure die casting, wherein the body is provided with a filter element mounting seat for installing a filter element and a radiator mounting position for installing a radiator, characterized in that: The radiator mounting position includes a radiator oil inlet, a radiator oil outlet, a radiator coolant inlet, and a radiator coolant outlet. The radiator oil inlet and outlet are connected via a first pipe. The main body has an opening slot on one side of the radiator mounting position that is not connected to the radiator oil inlet, outlet, coolant inlet, or outlet. This opening slot contains a reinforcing structure connected to the first pipe. The main body also has a main body oil inlet at the lower part of the filter element mounting base, communicating with the interior of the filter element mounting base. The main body is provided with a main oil outlet communicating with the radiator oil outlet. The filter element mounting base is provided with a filter element mounting base outlet communicating with the radiator oil inlet. A diverter valve is installed at the radiator oil inlet. At the other end of the main body opposite to where the filter element mounting base is located, there are a temperature sensor interface and a pressure sensor interface communicating with the radiator oil outlet, respectively. At the end of the main body where the pressure sensor interface is located, there is also a main body coolant inlet communicating with the radiator coolant inlet. At least one main body coolant outlet communicating with the radiator coolant outlet is provided at the lower part of the filter element mounting base.

2. The main body of an aluminum die-casting machine oil filter according to claim 1, characterized in that: The reinforcing structure includes at least one reinforcing inclined surface disposed within the opening groove, one end of which is connected to the first pipe and the other end of which is connected to the interior of the main body.

3. The main body of an aluminum die-casting machine oil filter according to claim 1, characterized in that: The end of the filter element mounting base away from the main body is the main body cover mounting part. A central tube column receiving cavity is provided in the middle of the filter element mounting base. The end of the central tube column receiving cavity away from the main body cover mounting part is connected to the oil outlet of the filter element mounting base. An isolation ring extending towards the main body cover mounting part is provided in the central tube column receiving cavity. The position of the main body oil inlet is lower than the isolation ring. A main body oil drain port communicating with the central tube column receiving cavity is provided on one side of the main body.

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