Filtering device and motor

Abstract

The utility model relates to the field of motor structures, in particular to a filtering device and a motor. The filtering device is installed on a shell of the motor, the shell is provided with an oil flow channel, an oil suction port and an oil discharge port, and the oil suction port and the oil discharge port are communicated with the oil flow channel. The mounting assembly is detachably mounted at the oil discharge outlet to block or open the oil discharge outlet; the filtering assembly is connected with the mounting assembly and can penetrate through the oil discharging opening; one side of the filter assembly is opposite to the oil suction port, and the other side of the filter assembly is communicated with the oil flow channel, so that lubricating oil from the oil suction port passes through the filter assembly and enters the oil flow channel. The filtering device provided by the utility model can integrate the function of filtering lubricating oil and the function of blocking the oil discharge outlet, saves the system arrangement space, improves the compactness of the whole motor system, reduces the number of parts, reduces the design cost, saves the assembly rhythm, facilitates after-sales maintenance and replacement through the structure of the filtering device, and improves the service life of the motor. And the reliability of the motor system is improved.

Description

Technical Field

[0001] This application relates to the field of motor structure, and in particular to a filter device and a motor. Background Technology

[0002] The filter in the motor system requires regular maintenance and replacement to better ensure the cleanliness of the internal oil and improve the reliability of the entire system. In existing technologies, the filter is often separately installed inside the motor system, which is inconvenient for after-sales maintenance and replacement. Furthermore, the filter requires separate bolt fixing, increasing both component costs and assembly time, which is detrimental to compact design and cost control. Utility Model Content

[0003] The purpose of this application is to provide a filtration device and a motor that can save space for motor placement and improve the compactness of the entire motor system.

[0004] This application provides a filtration device installed in the housing of an electric motor. The housing is provided with an oil flow channel and an oil suction port and an oil discharge port communicating with the oil flow channel. The filtration device includes a filtration assembly and an installation assembly.

[0005] The mounting component is detachably mounted on the oil drain port to block or open the oil drain port;

[0006] The filter assembly is connected to the mounting assembly and can penetrate the oil drain port; one side of the filter assembly is opposite to the oil suction port and the other side of the filter assembly is connected to the oil flow channel, so that the lubricating oil from the oil suction port passes through the filter assembly and enters the oil flow channel.

[0007] In the above technical solution, the filtering component further includes a filter screen;

[0008] The filter screen is cylindrical, with one end connected to the mounting assembly and the other end facing the oil flow channel;

[0009] The outer periphery of the filter screen is opposite to the oil suction port, and the inner ring of the filter screen is connected to the oil flow channel.

[0010] In the above technical solution, the filter assembly further includes a mounting bracket;

[0011] The mounting bracket is arranged around the outer periphery of the filter screen, and the mounting bracket is provided with a flow port for the lubricating oil to flow through.

[0012] The end of the mounting bracket is connected to the mounting assembly.

[0013] In the above technical solution, the mounting bracket further includes a main body and a snap-fit ​​part;

[0014] The main body is disposed around the outer periphery of the filter screen, and the main body is provided with the flow port;

[0015] The latching part includes at least one elastic latch, and the mounting component is correspondingly provided with a latching groove, wherein the elastic latch is latched in the latching groove.

[0016] In the above technical solution, the filter assembly further includes a first sealing ring;

[0017] The mounting bracket further includes a sealing portion, which is connected to the end of the main body away from the snap-fit ​​portion;

[0018] The sealing part is provided with a first sealing groove, and the first sealing ring is installed in the first sealing groove to seal the outer periphery of the filter screen and the oil flow channel.

[0019] In the above technical solution, the installation component further includes an installation part, which includes a connecting part and a cover part;

[0020] The connecting part is provided with a plug-in interface, and the filter assembly is inserted into the plug-in interface; and the outer periphery of the connecting part is threadedly connected to the oil drain port;

[0021] The cap is connected to the connecting part to seal the oil drain port from the outside.

[0022] In the above technical solution, the mounting assembly further includes a second sealing ring;

[0023] A second sealing groove is provided between the connecting part and the sealing part, and the second sealing ring is installed in the second sealing groove to seal the oil drain port.

[0024] This application also provides an electric motor, including a housing and the filtering device described above.

[0025] In the above technical solution, a receiving cavity is further provided between the oil flow channel and the oil outlet to accommodate the filter device.

[0026] In the above technical solution, the oil suction port is further located at the lowest point of the housing.

[0027] Compared with the prior art, the beneficial effects of this application are as follows:

[0028] The filtration device provided in this application integrates the functions of filtering lubricating oil and sealing the oil drain port, saving system layout space, improving the compactness of the entire motor system, reducing the number of parts, lowering design costs, and saving assembly time. Furthermore, the structure of the filtration device facilitates after-sales maintenance and replacement, thereby improving the reliability of the motor system.

[0029] This application also provides a motor, including the filtration device described in the above solution. Based on the above analysis, it is clear that the motor also possesses the aforementioned beneficial effects, which will not be elaborated further here. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 A schematic diagram of the first assembly structure of the filter device and housing provided in this application;

[0032] Figure 2 A schematic diagram of the second assembly structure of the filter device and housing provided in this application;

[0033] Figure 3 A first structural schematic diagram of the filtration device provided in this application;

[0034] Figure 4 A second structural schematic diagram of the filtration device provided in this application;

[0035] Figure 5 A third structural schematic diagram of the filtration device provided in this application.

[0036] In the diagram: 101-Housing; 102-Oil flow channel; 103-Oil suction port; 104-Oil discharge port; 105-Filter assembly; 106-Mounting assembly; 107-Filter screen; 108-Mounting bracket; 109-Main body; 110-Snap-fit ​​part; 111-Flow port; 112-Elastic claw; 113-Slot; 114-First sealing ring; 115-Sealing part; 116-First sealing groove; 117-Mounting component; 118-Connecting part; 119-Cap part; 120-Insertion interface; 121-Drive groove; 122-Second sealing ring; 123-Second sealing groove; 124-Receiving cavity. Detailed Implementation

[0037] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] Example 1

[0041] See Figures 1 to 5 As shown, the filter device provided in this application is installed in the housing 101 of the motor. An oil cooling system is installed inside the housing 101, including an oil pump installed within the housing 101 and an oil flow channel 102 opened in the housing 101. Under the action of the oil pump, the lubricating oil circulates repeatedly within the housing 101, causing the lubricating oil deposited at the bottom of the housing 101 to be pumped upwards through the oil flow channel 102 to key components of the motor such as the stator, rotor, bearings, and gears, thereby reducing wear on the core components of the motor and improving the reliability and stability of the system. To ensure the cleanliness of the oil inside the motor and the reliability of the entire system, in the prior art, a separate filter device is installed inside the motor, and this filter device generally needs to be replaced regularly to ensure good filtration effect. However, the after-sales maintenance and replacement of the filter device is quite difficult.

[0042] In addition, the housing 101 is provided with an oil suction port 103 and an oil discharge port 104 communicating with the oil flow channel 102. The oil suction port 103 is located inside the housing 101 and at the bottom of the housing 101. Lubricating oil deposited at the bottom of the housing 101 can enter the oil flow channel 102 through the oil suction port 103, thereby lubricating the stator, rotor, bearings, and gears of the motor. The oil discharge port 104 connects the inside and outside of the housing 101, and can discharge excess lubricating oil or waste oil after lubrication inside the housing 101, keeping the oil level inside the motor within a reasonable range and ensuring the normal operation of the motor. In the prior art, the oil discharge port 104 is sealed by a separately provided oil plug.

[0043] To improve the integration of the motor, this application provides a filtering device, which includes a filtering assembly 105 and a mounting assembly 106. The mounting assembly 106 is detachably mounted to the oil drain port 104. Specifically, when draining the lubricating oil inside the housing 101, the mounting assembly 106 can be detached from the oil drain port 104, and the oil drain port 104 is opened to allow the lubricating oil inside the housing 101 to flow out; when the lubricating oil is drained, the mounting assembly 106 can be installed back onto the oil drain port 104, thereby sealing the oil drain port 104.

[0044] One side of the filter assembly 105 faces the oil suction port 103, and the other side of the filter assembly 105 is connected to the oil flow channel 102. Lubricating oil from the oil suction port 103 passes through the filter assembly 105 and enters the oil flow channel 102. The filter assembly 105 can effectively filter impurities in the oil. The filter assembly 105 is connected to the mounting assembly 106 so that the mounting assembly 106 can support the filter assembly 105. The filter assembly 105 can penetrate the oil drain port 104. When replacing the filter assembly 105, the filter assembly 105 can be removed from the housing 101 by disassembling the mounting assembly 106 from the oil drain port 104, making the operation more convenient and quick.

[0045] The filter device provided in this application integrates the functions of filtering lubricating oil and sealing the oil drain port 104, saving system layout space, improving the compactness of the entire motor system, reducing the number of parts, lowering design costs, and saving assembly time. Furthermore, the structure of the filter device facilitates after-sales maintenance and replacement, thereby improving the reliability of the motor system.

[0046] In the optional solutions of this embodiment, such as Figures 3 to 5 As shown, the filter assembly 105 includes a filter screen 107; the filter screen 107 is cylindrical, one end of the filter screen 107 is connected to the mounting assembly 106, and the other end of the filter screen 107 faces the oil flow channel 102; the outer periphery of the filter screen 107 is opposite to the oil suction port 103, and the inner ring of the filter screen 107 is connected to the oil flow channel 102.

[0047] In this embodiment, after the lubricating oil enters the oil suction port 103, it can flow inward along the outer periphery of the filter screen 107 in multiple directions. The entire surface of the filter screen 107 can filter the lubricating oil, and the filtered lubricating oil can enter the oil flow channel 102 from the inner ring of the filter screen 107. Compared with the common sheet-shaped filter screen 107, the cylindrical filter screen 107 can increase the filtration area within a limited space, thereby improving the filtration capacity.

[0048] In an optional embodiment, the filter assembly 105 further includes a mounting bracket 108; the mounting bracket 108 surrounds the outer periphery of the filter screen 107, and the mounting bracket 108 is provided with a flow port 111 for lubricating oil to flow through; the end of the mounting bracket 108 is connected to the mounting assembly 106.

[0049] In this embodiment, the mounting bracket 108 surrounds the outer periphery of the filter screen 107, and the mounting bracket 108 is provided with a flow port 111 so as not to affect the flow of lubricating oil. The mounting bracket 108 can support the filter screen 107, and the mounting bracket 108 is connected to the mounting assembly 106 to fix the filter screen 107 on the mounting assembly 106, so as to prevent it from shifting or deforming during use, thereby extending the service life of the filter screen 107 and ensuring that it can maintain stable filtration performance during long-term operation.

[0050] Preferably, the end of the mounting bracket 108 is detachably connected to the mounting assembly 106. When replacing the filter assembly 105, the old filter assembly 105 can be removed from the mounting assembly 106, and then the new filter assembly 105 can be connected to the mounting assembly 106. The mounting assembly 106 can be reused, thereby saving costs.

[0051] In an optional embodiment, the mounting bracket 108 includes a main body 109 and a snap-fit ​​part 110; the main body 109 surrounds the outer periphery of the filter screen 107 and has a flow port 111; the snap-fit ​​part 110 includes at least one elastic claw 112, and the mounting component 106 is correspondingly provided with a slot 113, and the elastic claw 112 is snapped into the slot 113.

[0052] In this embodiment, specifically, there are multiple elastic claws 112, and these multiple elastic claws 112 are spaced apart to engage with the slots 113, thereby achieving a more stable connection. The cooperation between the elastic claws 112 and the slots 113 allows the mounting bracket 108 to be quickly and easily connected and disassembled with the mounting component 106, simplifying the assembly and disassembly process, improving production efficiency, and reducing labor costs. After the elastic claws 112 engage with the slots 113, a firm mechanical connection is formed, ensuring that the mounting bracket 108 will not loosen or fall off during use.

[0053] In an optional embodiment, the filter assembly 105 further includes a first sealing ring 114; the mounting bracket 108 further includes a sealing part 115, which is connected to the end of the main body 109 away from the snap-fit ​​part 110; the sealing part 115 is provided with a first sealing groove 116, and the first sealing ring 114 is installed in the first sealing groove 116 to seal the outer periphery of the filter screen 107 and the oil flow channel 102.

[0054] In this embodiment, the first sealing groove 116 of the mounting bracket 108 is located near the oil flow channel 102, and the first sealing ring 114 is installed in the first sealing groove 116. This can form an effective seal between the outer periphery of the filter screen 107 and the oil flow channel 102, preventing lubricating oil from leaking from the gap between them. This ensures that lubricating oil can only enter the oil flow channel 102 through the filter screen 107, preventing unfiltered lubricating oil from flowing directly into the system, thereby protecting the key components of the motor.

[0055] Example 2

[0056] The filtration device in this second embodiment is an improvement on the above embodiments. The technical content disclosed in the above embodiments will not be described again, and the content disclosed in the above embodiments also belongs to the content disclosed in this second embodiment.

[0057] See Figures 3 to 5 As shown, in an optional embodiment, the mounting component 106 includes a mounting member 117, which includes a connecting part 118 and a sealing part 119. The connecting part 118 is provided with an insertion interface 120, into which the filter component 105 is inserted. The outer periphery of the connecting part 118 is threadedly connected to the oil drain port 104. The sealing part 119 is connected to the connecting part 118 to seal the oil drain port 104 from the outside.

[0058] In this embodiment, the connecting portion 118 is cylindrical, and its inner ring forms an insertion interface 120 for mounting the filter assembly 105, thereby supporting and fixing the filter assembly 105. The outer periphery of the connecting portion 118 is provided with external threads, allowing it to be threadedly connected to the oil drain port 104, enabling the filter device to be installed onto the oil drain port 104. This facilitates easy assembly and disassembly while ensuring a secure connection. The sealing portion 119 externally seals the oil drain port 104, forming a double-sealing structure that effectively prevents lubricating oil leakage. The outer surface of the sealing portion 119 is provided with a drive groove 121, allowing tools to be placed within it for easy installation or removal of the device.

[0059] In an optional embodiment, the mounting assembly 106 further includes a second sealing ring 122; a second sealing groove 123 is provided between the connecting portion 118 and the cap portion 119, and the second sealing ring 122 is installed in the second sealing groove 123 to seal the oil drain port 104. The second sealing ring 122 can effectively seal the gap between the connecting portion 118 and the cap portion 119, preventing lubricating oil from leaking from the oil drain port 104.

[0060] Example 3

[0061] Embodiment 3 of this application provides an electric motor, including a housing 101 and a filter device of any of the above embodiments. Therefore, it has all the beneficial technical effects of the filter device of any of the above embodiments, which will not be repeated here.

[0062] In the optional solutions of this embodiment, such as Figure 1 As shown, a receiving cavity 124 is provided between the oil flow channel 102 and the oil outlet 104 to accommodate the filter device. Specifically, the filter assembly 105 and the connecting portion 118 of the mounting member 117 can be placed in the receiving cavity 124, and the size of the receiving cavity 124 is slightly larger than the size of the oil flow channel 102, so that the receiving cavity 124 can accommodate the relatively large filter assembly 105, thereby ensuring that the arrangement of the filter assembly 105 does not affect the flow effect of the lubricating oil, and the filter screen 107 is larger, with a larger filtration area.

[0063] In this embodiment, the oil suction port 103 is located at the lowest point of the housing 101 so that the lubricating oil deposited at the bottom of the housing 101 can enter the oil flow channel 102 through the oil suction port 103, which facilitates the smooth oil suction of the entire oil cooling system.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application. In addition, those skilled in the art can understand that although some embodiments herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are meant to be within the scope of this application and form different embodiments.

Claims

1. A filtering device, installed in the housing of a motor, the housing having an oil flow channel and an oil suction port and an oil discharge port communicating with the oil flow channel, characterized in that, The filtration device includes a filtration assembly and an installation assembly; The mounting component is detachably mounted on the oil drain port to block or open the oil drain port; The filter assembly is connected to the mounting assembly and can penetrate the oil drain port; one side of the filter assembly is opposite to the oil suction port and the other side of the filter assembly is connected to the oil flow channel, so that the lubricating oil from the oil suction port passes through the filter assembly and enters the oil flow channel.

2. The filtration device according to claim 1, characterized in that, The filtering assembly includes a filter screen; The filter screen is cylindrical, with one end connected to the mounting assembly and the other end facing the oil flow channel; The outer periphery of the filter screen is opposite to the oil suction port, and the inner ring of the filter screen is connected to the oil flow channel.

3. The filtration device according to claim 2, characterized in that, The filter assembly also includes a mounting bracket; The mounting bracket is arranged around the outer periphery of the filter screen, and the mounting bracket is provided with a flow port for the lubricating oil to flow through. The end of the mounting bracket is connected to the mounting assembly.

4. The filtration device according to claim 3, characterized in that, The mounting bracket includes a main body and a snap-fit ​​part; The main body is disposed around the outer periphery of the filter screen, and the main body is provided with the flow port; The latching part includes at least one elastic latch, and the mounting component is correspondingly provided with a latching groove, wherein the elastic latch is latched in the latching groove.

5. The filtration device according to claim 4, characterized in that, The filter assembly also includes a first sealing ring; The mounting bracket further includes a sealing portion, which is connected to the end of the main body away from the snap-fit ​​portion; The sealing part is provided with a first sealing groove, and the first sealing ring is installed in the first sealing groove to seal the outer periphery of the filter screen and the oil flow channel.

6. The filtration device according to claim 1, characterized in that, The mounting assembly includes a mounting component, which includes a connecting portion and a cover portion; The connecting part is provided with a plug-in interface, and the filter assembly is inserted into the plug-in interface; and the outer periphery of the connecting part is threadedly connected to the oil drain port; The cap is connected to the connecting part to seal the oil drain port from the outside.

7. The filtration device according to claim 6, characterized in that, The mounting assembly also includes a second sealing ring; A second sealing groove is provided between the connecting part and the sealing part, and the second sealing ring is installed in the second sealing groove to seal the oil drain port.

8. An electric motor, characterized in that, It includes a housing and a filter device as described in any one of claims 1 to 7.

9. The motor according to claim 8, characterized in that, A receiving cavity is provided between the oil flow channel and the oil outlet to accommodate the filter device.

10. The motor according to claim 8, characterized in that, The oil suction port is located at the lowest point of the housing.

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