Oil filter structure of oil-cooled motor

Abstract

The application relates to the technical field of oil-cooled motor filtering systems, in particular to an oil filter structure of an oil-cooled motor, which comprises a shell, the shell is provided with an oil inlet, a filter screen is arranged at the oil inlet of the shell, one side of the filter screen is arranged as an oil inlet side, the other side of the filter screen is arranged as an oil outlet side, a ferrous impurity suction accessory is arranged on one side of the shell at the oil inlet side, and the ferrous impurity suction accessory is used for adsorbing ferrous impurities. The application has the effect of improving the problem that ferrous impurities in cooling oil cannot be effectively filtered.

Description

Technical Field

[0001] This application relates to the technical field of oil-cooled motor filtration systems, and in particular to an oil filter structure for an oil-cooled motor. Background Technology

[0002] The electric oil pump used in an oil-cooled motor requires a higher flow rate than the electric oil pump used in a transmission gearbox, typically between 5 and 15 LPM. However, in related technologies, the oil circuit of an oil-cooled motor generally involves the electric oil pump delivering cooling oil to an oil filter for filtration, and then the filtered cooling oil is delivered to the heat exchanger and the oil-cooled motor for cooling.

[0003] Regarding the aforementioned technologies, the inventors believe that currently, oil filters cannot effectively filter iron-containing impurities in cooling oil, causing the filtration pressure on the filter screen to continuously increase during the circulating filtration process, thereby affecting the filtration efficiency and service life of the oil filter device. Summary of the Invention

[0004] In order to improve the problem that iron impurities in cooling oil cannot be effectively filtered, this application provides an oil filter structure for an oil-cooled motor.

[0005] The oil filter structure for an oil-cooled motor provided in this application adopts the following technical solution:

[0006] An oil filter structure for an oil-cooled motor includes a housing with an oil inlet and a filter screen installed at the oil inlet. One side of the filter screen is designated as the oil inlet side, and the other side is designated as the oil outlet side. A ferrous impurity adsorbent is installed on the side of the housing located on the oil inlet side, and the ferrous impurity adsorbent is used to adsorb ferrous impurities.

[0007] By adopting the above technical solution, the ferrous impurity adsorption component can adsorb ferrous impurities contained in the cooling oil. When the cooling oil circulates and filters, it flows through the filter screen and the ferrous impurity adsorption component, thus filtering the cooling oil and adsorbing the ferrous impurities in the oil. This filtration and adsorption process is simple, easy to install, effectively reduces the filtration pressure on the filter screen, improves filtration efficiency and service life, and ensures the normal operation of the oil cooling system.

[0008] Optionally, the ferrous impurity adsorbent is a ring magnet, which is fixedly installed on the side wall of the housing and arranged around the oil inlet.

[0009] By adopting the above technical solution, the ring magnet can be used to adsorb ferrous impurities.

[0010] Optionally, a cover is provided on the side of the housing facing the oil inlet side, and an oil inlet gap is provided between the cover and the housing for oil inlet. A connector is provided between the cover and the housing, and the cover and the housing are fixedly connected by the connector.

[0011] By adopting the above technical solution, the design of the cover allows the cooling oil to enter through the oil inlet gap between the cover and the housing, thereby improving the contact effect between the cooling oil and the ring magnet and enhancing the ring magnet's ability to adsorb ferrous impurities.

[0012] Optionally, an oil inlet guide assembly is installed at the oil inlet, which is used to guide the oil.

[0013] By adopting the above technical solution, the guide component can guide the cooling oil, further improving the effect of the ring magnet in adsorbing ferrous impurities.

[0014] Optionally, the oil inlet guiding assembly includes a guide cover for guiding the oil so that the oil enters the housing through the oil inlet on the side near the annular magnet.

[0015] By adopting the above technical solution, the guide cover is designed to guide the oil, allowing the oil to enter the housing through the oil inlet on the side close to the annular magnet. This facilitates full contact between the annular magnet and ferrous impurities in the cooling oil.

[0016] Optionally, the side of the guide cover is fixedly connected to the inner wall of the housing, and a protrusion is provided in the middle of the guide cover, with the protrusion facing the side of the housing cover.

[0017] By adopting the above technical solution, the protrusion can block the cooling oil, allowing the cooling oil to pass through the oil inlet along the side of the protrusion, thereby realizing the function of the guide cover in guiding the oil.

[0018] Optionally, the oil inlet of the housing is a circular port, and multiple circular ports are arranged along the length of the oil inlet side of the housing.

[0019] By adopting the above technical solution, the arrangement of multiple circular openings allows the cooling oil to enter the housing evenly through the multiple circular openings for filtration, thereby improving the filtration effect of the cooling oil.

[0020] Optionally, the side of the guide cover is fixedly connected to the inner wall of the housing, and the middle of the guide cover is provided with an indentation, which is oriented toward the oil outlet side of the oil inlet.

[0021] By adopting the above technical solution, the concave design of the guide cover allows the cooling oil to swirl during its entry into the housing, thereby generating centrifugal force. This allows the cooling oil to approach the annular magnet, improving the magnet's adsorption effect on ferrous impurities.

[0022] Optionally, the filter screen is arched toward the oil inlet side at the oil inlet.

[0023] By adopting the above technical solution, the arched design of the filter screen allows the cooling oil to move towards the periphery of the filter screen. During the process of entering the housing, the cooling oil can flow inward along the periphery of the guide cover, thereby generating a swirling effect.

[0024] Optionally, a plurality of blocks are provided on the side of the annular magnet away from the housing, and the plurality of blocks are arranged at intervals along the length direction of the annular magnet.

[0025] By adopting the above technical solution and setting multiple baffles, the contact area between the cooling oil and the annular magnet can be increased, thereby improving the adsorption effect of the annular magnet on ferrous impurities.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The iron impurity adsorption component can adsorb iron impurities contained in the cooling oil. When the cooling oil circulates and filters, it flows through the filter screen and the ring magnet, which filters the cooling oil and adsorbs the iron impurities in the oil by the ring magnet. This filtration and adsorption process is simple and easy to install, effectively reducing the filtration pressure on the filter screen, improving filtration efficiency and service life, thereby ensuring the normal operation of the oil cooling system.

[0028] 2. The guide component can guide the cooling oil, further improving the effect of the ring magnet in adsorbing ferrous impurities;

[0029] 3. The protrusions can block the cooling oil, allowing the oil to pass through the inlet along the side of the protrusions, thus achieving the function of the guide cover in guiding the oil.

[0030] 4. The concave design of the guide cover allows the cooling oil to swirl as it enters the housing, generating centrifugal force. This allows the cooling oil to approach the annular magnet, improving the magnet's adsorption effect on ferrous impurities.

[0031] 5. The arched design of the filter screen allows the cooling oil to move towards the periphery of the filter screen. During the process of entering the housing, the cooling oil can flow inward along the periphery of the guide cover, thereby generating a swirling effect.

[0032] 6. The setting of multiple baffles can increase the contact area between the cooling oil and the ring magnet, thereby improving the adsorption effect of the ring magnet on ferrous impurities. Attached Figure Description

[0033] Figure 1 This is a top view of the structure after the cover is hidden in Embodiment 1.

[0034] Figure 2 This is a schematic diagram of the internal structure of Embodiment 1.

[0035] Figure 3 This is a side view of Embodiment 2.

[0036] Figure 4 This is a schematic diagram of the internal structure of Embodiment 3.

[0037] Figure 5 This is a top view of the structure after the cover is hidden in Embodiment 4.

[0038] Figure 6 This is a schematic diagram of the internal structure of Embodiment 4.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Housing; 2. Housing cover; 3. Filter screen; 31. Coarse filter layer; 32. Fine filter layer; 4. Oil inlet side; 5. Oil outlet side; 6. Sealing ring; 7. Connecting parts; 8. Ring magnet; 9. Stop block; 10. Oil inlet guide assembly; 101. Guide cover; 102. Protrusion; 103. Concave. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0042] This application discloses an oil filter structure for an oil-cooled motor.

[0043] Example 1

[0044] Reference Figure 1 and Figure 2 An oil filter structure for an oil-cooled motor includes a housing 1 and a cover 2. The housing 1 has an oil inlet, and a filter screen 3 is installed at the oil inlet. One side of the filter screen 3 is designated as the oil inlet side 4, and the other side is designated as the oil outlet side 5. A ferrous impurity adsorbent is installed on the side of the housing 1 located on the oil inlet side 4 to adsorb ferrous impurities. A sealing ring 6 is installed on the side of the housing 1 located on the oil outlet side 5 to improve the sealing performance of the housing 1.

[0045] Reference Figure 1 and Figure 2The cover 2 is fixed to the outside of the housing 1 on the side facing the oil inlet side 4, and an oil inlet gap is provided between the cover 2 and the housing 1. During the filtration process, the cooling oil can flow into the oil inlet through the oil inlet gap, thereby allowing the cooling oil to flow better through the ferrous adsorbent and improving the adsorption effect of the ferrous adsorbent on ferrous impurities in the cooling oil. A connector 7 is provided between the cover 2 and the housing 1, and the cover 2 and the housing 1 are fixedly connected by the connector 7. The connector 7 can be a connecting rod, a connecting block, etc. In this embodiment, it is preferably a connecting rod. Multiple connecting rods are provided, and multiple connecting rods surround the side wall of the housing 1. One end of the connecting rod is fixedly connected to the side wall of the housing 1. The side wall of the cover 2 has a snap-fit ​​corresponding to the connecting rod, and the connecting rod engages with the snap-fit.

[0046] Reference Figure 2 The filter screen 3 includes a coarse filter layer 31 and a fine filter layer 32. The fine filter layer 32 is sandwiched in the middle of the coarse filter layer 31, so that the cooling oil can be filtered in stages by the cooperation of the fine filter layer 32 and the coarse filter layer 31, thereby improving the filtration effect of the filter screen 3 on the cooling oil.

[0047] Reference Figure 2 The ferrous impurity adsorbent is a ring magnet 8, which is fixedly installed on the side wall of the housing 1 and arranged around the oil inlet. In this embodiment, the ring magnet 8 is preferably a neodymium magnet.

[0048] The implementation principle of the oil filter structure of an oil-cooled motor in this application embodiment is as follows: During the process of filtering cooling oil, the cooling oil enters the oil inlet through the oil inlet gap between the housing 1 and the housing cover 2, so that the cooling oil can flow through the annular magnet 8, thereby enabling the annular magnet 8 to fully adsorb ferrous impurities in the coolant, thereby improving the filtration efficiency and service life of the filter screen 3.

[0049] Example 2

[0050] The difference between this embodiment and Embodiment 1 is that, referring to... Figure 3 Multiple baffles 9 are provided on the side of the annular magnet 8 away from the housing 1. These baffles 9 are magnetic and can attract ferrous impurities in the coolant. The baffles 9 are arranged at intervals along the length of the annular magnet 8. The arrangement of the baffles 9 increases the contact area between the coolant and the annular magnet 8, thereby improving the filtration effect on ferrous impurities in the coolant. Simultaneously, the baffles 9 can abut against the side wall of the housing 2, thereby attracting the housing 2 and further improving the stability of the housing 2 installation.

[0051] Example 3

[0052] The difference between this embodiment and Embodiment 1 is that, referring to... Figure 4An oil inlet guide assembly 10 is installed at the oil inlet, which is used to guide the oil. Specifically, the oil inlet guide assembly 10 includes a guide cover 101, which is hollowed out. The side of the guide cover 101 is fixedly connected to the inner wall of the housing 1, and a protrusion 102 is provided in the middle of the guide cover 101. The protrusion 102 is provided facing the housing cover 2, and the protrusion 102 of the guide cover 101 abuts against the side wall of the housing cover 2.

[0053] The inventors discovered that during the filtration of cooling oil, if the flow rate of the cooling oil is fast or the flow rate is too large, the probability of ferrous impurities in the cooling oil escaping the adsorption of the ring magnet 8 will increase, thereby making the filtration effect of the ring magnet 8 on ferrous impurities worse.

[0054] Therefore, during the filtration and cooling process, the cooling oil can enter the oil inlet side 4 of the oil inlet through the oil inlet gap. At this time, the guide cover 101 can block the cooling oil. When the flow rate of the cooling oil is too large or the flow velocity of the cooling oil is too high, some of the cooling oil can flow through the periphery of the protrusion 102 of the guide cover 101 under the blocking effect of the protrusion 102. This allows the cooling oil to reappear near the adsorption range of the annular magnet 8, so that the annular magnet 8 can re-adsorb the iron impurities in the cooling oil that have not been successfully adsorbed, thereby improving the adsorption effect of the annular magnet 8.

[0055] Example 4

[0056] The difference between this embodiment and Embodiment 2 is that, referring to... Figure 5 and Figure 6 The oil inlet of the housing 1 is a circular port, and multiple circular ports are arranged along the length of the oil inlet side 4 of the housing 1. Multiple annular magnets 8 are correspondingly provided, with each annular magnet 8 corresponding one-to-one with a circular port, and the annular magnets 8 and the circular ports are concentrically arranged. The annular magnets 8 are fixedly installed on the side wall of the housing 1.

[0057] Reference Figure 5 and Figure 6 An oil inlet guide assembly 10 is installed at the oil inlet, which is used to guide the oil. Specifically, the oil inlet guide assembly 10 includes a guide cover 101, which is hollowed out and its side is fixedly connected to the inner wall of the housing 1. The guide cover 101 has a recess 103 in the middle, which faces the oil outlet side 5 at the oil inlet. The filter screen 3 is arched towards the oil inlet side 4 at the oil inlet.

[0058] The implementation principle of the oil filter structure for an oil-cooled motor in this embodiment is as follows: During the filtration of cooling oil, the cooling oil first enters the oil inlet side 4 through the gaps between multiple baffles 9. Then, the filter screen 3 can block the portion of cooling oil with excessive flow rate. The blocked cooling oil can return to the adsorption range of the annular magnet 8, thereby re-adsorbing ferrous impurities in the cooling oil. At the same time, the cooling oil passing through the filter screen 3 can generate centrifugal force in the concave 103 of the guide cover 101, allowing the cooling oil to approach the annular magnet 8 and improving the adsorption effect of the annular magnet 8 on ferrous impurities. Furthermore, the arched arrangement of the multiple baffles 9 and the filter screen 3 can divert the cooling oil, causing the cooling oil to enter in multiple streams, increasing the swirling effect of the cooling oil as it flows through the concave 103 of the guide cover 101, thereby further improving the adsorption effect on ferrous impurities in the cooling oil.

[0059] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An oil filter structure for an oil-cooled motor, characterized in that: Includes a housing (1), the housing (1) having an oil inlet, and a filter screen (3) installed at the oil inlet of the housing (1), one side of the filter screen (3) being configured as the oil inlet side (4), and the other side of the filter screen (3) being configured as the oil outlet side (5), and an iron impurity adsorbent is installed on the side of the housing (1) located on the oil inlet side (4), the iron impurity adsorbent being used to adsorb iron impurities; The iron impurity adsorbent is a ring magnet (8), which is fixedly installed on the side wall of the housing (1) and is arranged around the oil inlet. A cover (2) is provided on the side of the housing (1) facing the oil inlet side (4). An oil inlet gap is provided between the cover (2) and the housing (1) for oil inlet. A connector (7) is provided between the cover (2) and the housing (1). The cover (2) and the housing (1) are fixedly connected by the connector (7). An oil inlet guide assembly (10) is installed at the oil inlet, and the oil inlet guide assembly (10) is used to guide the oil. The oil inlet of the housing (1) is a circular port, and there are multiple circular ports arranged along the length of the oil inlet side (4) of the housing (1). The oil inlet guide assembly (10) includes a guide cover (101), which is hollowed out. The side of the guide cover (101) is fixedly connected to the inner wall of the housing (1). The middle part of the guide cover (101) is provided with a concave (103), which is set towards the oil outlet side (5) at the oil inlet. The filter screen (3) is arched towards the oil inlet side (4) at the oil inlet; The annular magnet (8) has multiple blocks (9) on the side away from the housing (1), and the multiple blocks (9) are arranged at intervals along the length direction of the annular magnet (8).

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