Integrated device with filter assembly

Abstract

The utility model provides an integrated device with a filtering assembly. The integrated device comprises a speed reducer shell, an electronic oil pump and the filtering assembly. At least part of the electronic oil pump is located in the first containing cavity of the speed reducer shell, and an oil pump end cover of the electronic oil pump covers a cavity opening, facing one end of the second containing cavity, of the first containing cavity and is connected with the speed reducer shell. The filtering assembly is arranged in the second containing cavity and directly connected with the oil pump end cover. At least one of the to-be-lubricated area and the to-be-cooled area of the integrated device communicates with the first containing cavity, and the second containing cavity communicates with a lubricating oil pool of the integrated device. The problems that in the prior art, a filter is integrated on a speed reducer shell, so that space arrangement is difficult, and aluminum scrap residues exist in an oil channel between the filter and an electronic oil pump in the machining and using process are solved. And aluminum scraps enter the electronic oil pump and the motor from an oil channel between the electronic oil pump and the filter to damage the electronic oil pump and the motor.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy vehicle technical field, specifically, relate to an integrated device with filter assembly. BACKGROUND

[0002] With the development of new energy vehicles, the requirement of electric drive system is higher and higher, because the cooling effect of water cooling mode is worse than that of oil cooling mode, so the application of oil cooling type electric drive system is more and more widely, the motor and the reducer in the oil cooling type electric drive system share lubricating oil, and the long-term operation of the reducer may cause the gear to produce iron filings due to wear, and there is the phenomenon that aluminum filings on the shell of the reducer are separated, once the above-mentioned iron filings, aluminum filings and other filings enter the motor along with the lubricating oil, the insulation of the motor will be seriously affected, and even the motor wire-wound wire welding point position is turned on, in addition, the meshing part of the rotor assembly of the electronic oil pump will also be worn and jammed during operation.

[0003] Therefore, a filter is arranged in front of the oil inlet of the electronic oil pump of the reducer to filter the oil, but the addition of the filter will cause difficulty in the space arrangement of the reducer, and the overall peripheral size of the reducer is often increased, thereby affecting the arrangement of the electric drive system on the whole vehicle, and the oil channel between the electronic oil pump and the filter may have aluminum filings remaining during processing and use, and the aluminum filings entering the electronic oil pump and the motor from the oil channel between the electronic oil pump and the filter will cause damage to the electronic oil pump and the motor. SUMMARY

[0004] The main purpose of the utility model is to provide an integrated device with filter assembly, so as to solve the problems that the filter in the prior art is integrated on the reducer shell, the space arrangement is difficult, and the oil channel between the filter and the electronic oil pump has aluminum filings remaining during processing and use, and the aluminum filings entering the electronic oil pump and the motor from the oil channel between the electronic oil pump and the filter will cause damage to the electronic oil pump and the motor.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an integrated device with filter assembly, including reducer shell, electronic oil pump and filter assembly, wherein the reducer shell has the first accommodating cavity and the second accommodating cavity which are connected, at least part of the electronic oil pump is located in the first accommodating cavity, the electronic oil pump includes the oil pump end cover, the oil pump end cover is arranged at the cavity opening of the first accommodating cavity towards the second accommodating cavity one end, and is connected with the reducer shell, the filter assembly is arranged in the second accommodating cavity, and the filter assembly is directly connected with the oil pump end cover, wherein at least one of the lubrication area and the cooling area of the integrated device is communicated with the first accommodating cavity, the second accommodating cavity is communicated with the lubricating oil pool of the integrated device, the oil pump end cover has the through hole structure, and the through hole structure is used for communicating the first accommodating cavity and the second accommodating cavity.

[0006] In one example embodiment, the filter assembly is detachably connected with the oil pump end cover.

[0007] In one example embodiment, the filter assembly is threadedly connected with the oil pump end cover.

[0008] In one example embodiment, the filter assembly comprises a filter body and an assembly end head, wherein the filter body has a filter structure and an oil passage, the filter structure is sleeved on the outer circumferential side of the oil passage, and the filter holes of the filter structure are in communication with the oil passage; the assembly end head is arranged at the axial end of the filter body and is connected with the oil pump end cover, the assembly end head has a communication hole, and two ends of the communication hole are in communication with the through-hole structure and the oil passage, respectively.

[0009] In one example embodiment, the assembly end head comprises an assembly disc body and a flow guide column body, wherein the assembly disc body is connected with the axial end of the filter body, and the assembly disc body has an assembly hole; the first end of the flow guide column body penetrates the assembly hole, the second end of the flow guide column body extends into the through-hole structure, and the flow guide column body has a communication hole.

[0010] In one example embodiment, in the direction from the first accommodating cavity to the second accommodating cavity, the through-hole structure sequentially comprises the first hole section and the second hole section in communication; at least the hole wall surface of the second hole section has an internal thread structure, and at least the outer circumferential surface of the flow guide column body extending into the second hole section has an external thread structure, so that the flow guide column body is threadedly matched with the second hole section.

[0011] In one example embodiment, the hole diameter D1 of the first hole section and the hole diameter D2 of the second hole section satisfy: D1 < D2.

[0012] In one example embodiment, in the direction from the first accommodating cavity to the second accommodating cavity, the through-hole structure sequentially comprises the first hole section, the second hole section, and the third hole section in communication; at least the hole wall surface of the second hole section has an internal thread structure, and at least the outer circumferential surface of the flow guide column body extending into the second hole section has an external thread structure, so that the flow guide column body is threadedly matched with the second hole section; the end surface of the assembly disc body on the side facing the oil pump end cover surrounds an annular cavity with the third hole section; the filter assembly further comprises a sealing ring, which is sleeved on the outer circumferential side of the flow guide column body and located in the annular cavity.

[0013] In one example embodiment, the hole diameter D1 of the first hole section, the hole diameter D2 of the second hole section, and the hole diameter D3 of the third hole section satisfy: D1 < D2 < D3.

[0014] In one example embodiment, the first end of the flow guide column body penetrates the assembly hole and extends into the oil passage.

[0015] The technical scheme of the utility model provides an integrated device with a filter assembly, comprising a reducer shell, an electronic oil pump, a filter assembly, wherein the reducer shell has a first accommodating cavity and a second accommodating cavity in communication; at least part of the electronic oil pump is located in the first accommodating cavity, the electronic oil pump comprises an oil pump end cover, the oil pump end cover is arranged at the cavity opening of the first accommodating cavity towards the second accommodating cavity, and is connected with the reducer shell; the filter assembly is arranged in the second accommodating cavity, and the filter assembly is directly connected with the oil pump end cover; wherein at least one of the lubrication area and the cooling area of the integrated device is communicated with the first accommodating cavity, and the second accommodating cavity is communicated with the lubricating oil pool of the integrated device; the oil pump end cover has a through hole structure, and the through hole structure is used for communicating the first accommodating cavity and the second accommodating cavity.

[0016] In this way, the lubricating oil in the lubricating oil pool sequentially flows through the second accommodating cavity, the filter assembly, the through hole structure, the first accommodating cavity, the lubrication area and / or the cooling area, thereby realizing the lubrication reliability of the lubrication parts in the lubrication area and the cooling reliability of the cooling parts in the cooling area, ensuring that the lubricating oil entering the lubrication area and the cooling area does not carry debris, thereby ensuring the working reliability of the electronic oil pump, and ensuring that the integration of the filter assembly does not occupy a large installation space of the reducer, and the filter assembly is directly connected with the oil pump end cover without an intermediate oil passage, on the one hand, it is beneficial to avoid that the overall peripheral size of the integrated device is large, and on the other hand, since the filter assembly is directly connected with the oil pump end cover without an intermediate oil passage, it is beneficial to the lightweight design of the integrated device, and it is not necessary to consider that the aluminum debris generated in the processing and use process of the intermediate oil passage flows into the internal part of the electronic oil pump along with the lubricating oil. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings accompanying the specification of this application serve to provide a further understanding of the utility model, the schematic embodiments of the utility model and the description thereof serve to explain the utility model, and do not constitute improper limitation on the utility model. In the drawings:

[0018] Figure 1 A structure schematic view of an integrated device according to an optional embodiment of the utility model is shown;

[0019] Figure 2 A sectional structure schematic view of the A-A perspective in Figure 1 is shown;

[0020] Figure 3 An enlarged structure schematic view of the B in Figure 2 is shown.

[0021] Among them, the above-mentioned drawings include the following signs:

[0022] 10, speed reducer housing; 11, first accommodating cavity; 12, second accommodating cavity;

[0023] 20, electronic oil pump; 21, oil pump end cover;

[0024] 30, filter assembly; 31, filter body; 311, filter structure; 312, oil passage; 32, assembly end head; 321, communication hole; 322, assembly disc body; 323, flow guide column body; 33, sealing ring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] In order to solve the problems that the integration of the filter on the speed reducer housing is difficult to arrange the space, and the oil passage between the filter and the electronic oil pump has aluminum residue in processing and use, which enters the electronic oil pump and the motor through the oil passage between the electronic oil pump and the filter, and causes damage to the electronic oil pump and the motor, the utility model provides an integrated device with filter assembly.

[0027] As shown in Figures 1 to 3 The integrated device with filter assembly includes a speed reducer housing 10, an electronic oil pump 20 and a filter assembly 30, wherein the speed reducer housing 10 has a first accommodating cavity 11 and a second accommodating cavity 12 in communication; at least part of the electronic oil pump 20 is located in the first accommodating cavity 11, the electronic oil pump 20 includes an oil pump end cover 21, the oil pump end cover 21 is arranged at the cavity opening of the first accommodating cavity 11 towards the second accommodating cavity 12, and is connected with the speed reducer housing 10; the filter assembly 30 is arranged in the second accommodating cavity 12, and the filter assembly 30 is directly connected with the oil pump end cover 21; wherein at least one of the lubrication area and the cooling area of the integrated device is in communication with the first accommodating cavity 11, and the second accommodating cavity 12 is in communication with the lubricating oil pool of the integrated device; the oil pump end cover 21 has a through hole structure, and the through hole structure is used for communicating the first accommodating cavity 11 and the second accommodating cavity 12.

[0028] The technical scheme of the utility model provides an integrated device with a filter assembly, lubricating oil in a lubricating oil pool sequentially flows through the second containing cavity 12, the filter assembly 30, the through hole structure, the first containing cavity 11, the lubricating area and / or the cooling area, thereby realizing lubrication reliability of the lubricating part in the lubricating area and cooling reliability of the cooling part in the cooling area, ensuring that the lubricating oil entering the lubricating area and the cooling area does not carry debris, thereby ensuring working reliability of the electronic oil pump 20, and ensuring that the integration of the filter assembly 30 does not occupy a large installation space of the speed reducer, and the filter assembly 30 is directly connected with the oil pump end cover 21 without an intermediate transition oil passage, on the one hand, the integrated device has a small overall peripheral size, and on the other hand, the filter assembly 30 is directly connected with the oil pump end cover 21 without an intermediate transition oil passage, which facilitates lightweight design of the integrated device and eliminates the need to consider aluminum debris generated in the machining and use process of the intermediate transition oil passage flowing into the electronic oil pump 20 along with the lubricating oil.

[0029] It should be noted that in the present application, the filter assembly 30 is detachably connected with the oil pump end cover 21. In this way, the installation and dismounting convenience of the filter assembly 30 is ensured, and the filter assembly 30 is convenient to replace subsequently.

[0030] As shown in Figure 2 and Figure 3 , the filter assembly 30 is threadedly connected with the oil pump end cover 21. In this way, the assembly convenience between the filter assembly 30 and the oil pump end cover 21 is ensured, and the installation and dismounting of the filter assembly 30 can be completed by screwing.

[0031] As shown in Figure 3 , the filter assembly 30 comprises a filter body 31 and an assembly end head 32, wherein the filter body 31 has a filter structure 311 and an oil passage 312, the filter structure 311 is sleeved on the outer circumferential side of the oil passage 312, and the filter holes of the filter structure 311 are communicated with the oil passage 312; the assembly end head 32 is arranged at the axial end of the filter body 31 and connected with the oil pump end cover 21, and the assembly end head 32 has a communication hole 321, the two ends of the communication hole 321 are respectively communicated with the through hole structure and the oil passage 312. In this way, by arranging the filter assembly 30 in the structure form comprising the filter body 31 and the assembly end head 32, the filter structure 311 of the filter body 31 plays a filtering reliability of debris in the lubricating oil, the oil passage 312 of the filter body 31 plays a guiding reliability of the lubricating oil, and the arrangement of the assembly end head 32 ensures the connection reliability of the filter assembly 30 and the oil pump end cover 21.

[0032] As shown in Figure 3As shown, the assembly end head 32 comprises an assembly disc body 322 and a flow guide column body 323, wherein the assembly disc body 322 is connected with the axial end of the filter body 31, the assembly disc body 322 has an assembly hole; the first end of the flow guide column body 323 penetrates through the assembly hole, the second end of the flow guide column body 323 extends into the through-hole structure, and the flow guide column body 323 has a communication hole 321. In this way, by setting the assembly end head 32 to comprise the assembly disc body 322 and the flow guide column body 323, the connection reliability of the assembly disc body 322 with the oil pump end cover 21 is ensured, and the setting of the flow guide column body 323 plays a role in reliable oil guiding of the lubricating oil.

[0033] It should be noted that in the present application, in the direction from the first accommodating cavity 11 to the second accommodating cavity 12, the through-hole structure comprises the first hole section and the second hole section which are connected in sequence; wherein at least the hole wall surface of the second hole section has an internal thread structure, and at least the outer circumferential surface of the flow guide column body 323 extending into the second hole section has an external thread structure, so that the flow guide column body 323 is screwed with the second hole section. In this way, by setting the through-hole structure to comprise the first hole section and the second hole section which are connected in sequence in the direction from the first accommodating cavity 11 to the second accommodating cavity 12, the connection reliability of the filter assembly 30 with the oil pump end cover 21 through the assembly end head 32 is ensured while ensuring the reliable oil guiding of the lubricating oil.

[0034] Optionally, the hole diameter D1 of the first hole section and the hole diameter D2 of the second hole section satisfy: D1 < D2.

[0035] It should be noted that in the present application, in the direction from the first accommodating cavity 11 to the second accommodating cavity 12, the through-hole structure comprises the first hole section, the second hole section and the third hole section which are connected in sequence; wherein at least the hole wall surface of the second hole section has an internal thread structure, and at least the outer circumferential surface of the flow guide column body 323 extending into the second hole section has an external thread structure, so that the flow guide column body 323 is screwed with the second hole section; the end surface of the assembly disc body 322 on the side facing the oil pump end cover 21 surrounds an annular cavity with the third hole section; the filter assembly 30 further comprises a sealing ring 33, which is sleeved on the outer circumferential side of the flow guide column body 323 and located in the annular cavity. In this way, by setting the through-hole structure to comprise the first hole section, the second hole section and the third hole section which are connected in sequence in the direction from the first accommodating cavity 11 to the second accommodating cavity 12, the connection reliability of the filter assembly 30 with the oil pump end cover 21 through the assembly end head 32 is ensured while ensuring the reliable oil guiding of the lubricating oil, in addition, the setting of the sealing ring 33 can play a role in effectively sealing the connection between the assembly end head 32 and the oil pump end cover 21, preventing the lubricating oil from leaking.

[0036] Optionally, the hole diameter D1 of the first hole section, the hole diameter D2 of the second hole section and the hole diameter D3 of the third hole section satisfy: D1 < D2 < D3.

[0037] like Figure 3 As shown, the first end of the guide column 323 passes through the mounting hole and extends into the oil passage 312. This ensures reliable oil guiding for the lubricating oil.

[0038] The present invention provides an integrated device with a filter assembly, comprising a reducer housing 10, an electronic oil pump 20, and a filter assembly 30. The reducer housing 10 has a first receiving cavity 11 and a second receiving cavity 12 that are connected. At least a portion of the electronic oil pump 20 is located within the first receiving cavity 11. The electronic oil pump 20 includes an oil pump end cap 21, which covers the opening of the first receiving cavity 11 facing the second receiving cavity 12 and is connected to the reducer housing 10. The filter assembly 30 is disposed within the second receiving cavity 12 and is directly connected to the oil pump end cap 21. At least one of the lubrication area and the cooling area of ​​the integrated device communicates with the first receiving cavity 11, and the second receiving cavity 12 communicates with the lubricating oil reservoir of the integrated device. The oil pump end cap 21 has a through-hole structure for connecting the first receiving cavity 11 and the second receiving cavity 12.

[0039] In this way, the lubricating oil in the lubricating oil sump flows sequentially through the second receiving cavity 12, the filter assembly 30, the through-hole structure, the first receiving cavity 11, the area to be lubricated, and / or the area to be cooled. This ensures reliable lubrication of the parts to be lubricated in the area to be lubricated and reliable cooling of the parts to be cooled in the area to be cooled. At the same time, it ensures that the lubricating oil entering the area to be lubricated and the area to be cooled does not carry debris, thus ensuring the operational reliability of the electronic oil pump 20. Furthermore, it ensures that the integration of the filter assembly 30 does not occupy a large installation space in the reducer, and also allows the filter assembly 30 to be directly connected to the oil pump end cover 21 without intermediate oil passages. On the one hand, this helps to avoid a large overall peripheral size of the integrated device. On the other hand, since the filter assembly 30 is directly connected to the oil pump end cover 21 without intermediate oil passages, it is conducive to the lightweight design of the integrated device. Moreover, there is no need to consider that aluminum shavings generated during processing and use will flow into the electronic oil pump 20 with the lubricating oil.

[0040] It should be noted that in this application, the installation position of the filter assembly 30 is integrated with the oil pump end cover 21 of the electronic oil pump 20. The electronic oil pump 20 and the filter assembly 30 are directly connected without oil passages, which reduces the weight of the reducer, reduces efficiency damage during the oil pumping process, and avoids the risk of aluminum shavings that may be left in the oil passage processing entering the oil pump. Furthermore, the filter assembly 30 is connected to the oil pump end cover 21 of the electronic oil pump 20 by threads, which makes the connection method and sealing performance between the filter assembly 30 and the electronic oil pump 20 more reliable and convenient for future replacement.

[0041] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0042] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the present application unless otherwise specifically stated. Also, it is to be understood that the drawings are not necessarily to scale, with emphasis being placed upon illustrating the principles of the application. Techniques, methods, and apparatus known to those of ordinary skill are not discussed in detail because they would be considered as too trivial to obscure the present application. In all examples shown and discussed herein, any specific values are to be interpreted as merely illustrative and not as a limitation of the examples. Thus, other examples of the example embodiments can have different values. It is to be noted that like numbers and letters refer to like elements throughout the several views of the drawings and that, as typically used herein, the following terminology can have the following meaning(s):

[0043] For purposes of the description hereinafter, the terms "upper", "lower", "right", "left", "vertical", "horizontal", "top", "bottom", "lateral", "medial", "superior", "inferior", "proximal", "distal" and derivatives thereof shall relate to the application as it is shown in the drawings and as they are typically used in connection with the application. However, it is to be understood that the application can assume various alternative orientations and, accordingly, such terms can be interpreted as being made relative to those alternative orientations.

[0044] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0045] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application and in the above-described drawings are used only for distinguishing between similar objects and do not necessarily have to describe a specific sequential or chronological order. It is to be understood that the data so distinguished can be interchanged, under appropriate circumstances, such that the embodiments of the present application described herein can be practiced in other than the illustrated or described order.

[0046] The preferred embodiments of the present application are described above with the purpose of only illustrating rather than limiting the present application. The present application can be variously changed and altered by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An integrated device having a filtration assembly, characterized by, The integrated device comprises: a reducer housing (10) having a first accommodating cavity (11) and a second accommodating cavity (12) in communication; an electronic oil pump (20) at least partially located in the first accommodating cavity (11), the electronic oil pump (20) comprising an oil pump end cover (21) covering the cavity opening of the first accommodating cavity (11) towards the second accommodating cavity (12) and connected with the reducer housing (10); a filter assembly (30) arranged in the second accommodating cavity (12) and directly connected with the oil pump end cover (21); wherein at least one of the lubrication region and the cooling region of the integrated device is in communication with the first accommodating cavity (11), and the second accommodating cavity (12) is in communication with the lubricating oil pool of the integrated device; the oil pump end cover (21) has a through-hole structure for communicating the first accommodating cavity (11) and the second accommodating cavity (12).

2. The integrated device of claim 1, wherein, The filter assembly (30) is detachably connected with the oil pump end cover (21).

3. The integrated device of claim 1, wherein, The filter assembly (30) is threadedly connected with the oil pump end cover (21).

4. The integrated device of claim 1, wherein, The filter assembly (30) comprises: a filter body (31) having a filter structure (311) and an oil passage (312), the filter structure (311) being sleeved on the outer circumferential side of the oil passage (312), and the filter holes of the filter structure (311) being in communication with the oil passage (312); an assembly end head (32) arranged at the axial end of the filter body (31) and connected with the oil pump end cover (21), the assembly end head (32) having a communication hole (321) in communication with the through-hole structure and the oil passage (312) at both ends thereof.

5. The integrated device according to claim 4, wherein the assembly end head (32) comprises: an assembly disc body (322) connected with the axial end of the filter body (31), the assembly disc body (322) having an assembly hole; a flow guide column body (323) having a first end penetrating the assembly hole and a second end extending into the through-hole structure, the flow guide column body (323) having the communication hole (321).

6. The integrated device according to claim 5, wherein in the direction from the first accommodating cavity (11) to the second accommodating cavity (12), the through-hole structure comprises a first hole section and a second hole section in communication in sequence; wherein at least the hole wall surface of the second hole section has an internal thread structure, and at least the outer circumferential surface of the flow guide column body (323) extending into the second hole section has an external thread structure, so that the flow guide column body (323) is threadedly matched with the second hole section.

7. The integrated device of claim 6, wherein, The hole diameter D1 of the first hole section and the hole diameter D2 of the second hole section satisfy D1 < D2.

8. The integrated device of claim 5, wherein, In the direction from the first accommodating cavity (11) to the second accommodating cavity (12), the via structure sequentially comprises the first hole section, the second hole section and the third hole section which are in communication; At least the hole wall surface of the second hole section has an internal thread structure, and at least the outer circumferential surface of the flow guide column (323) which extends into the second hole section has an external thread structure, so that the flow guide column (323) is screwed with the second hole section; The end surface of the assembly disc body (322) on the side facing the oil pump end cover (21) and the third hole section enclose an annular cavity; The filter assembly (30) further comprises: A sealing ring (33) is sleeved on the outer circumferential side of the flow guide column (323) and located in the annular cavity.

9. The integrated device of claim 8, wherein, The hole diameter D1 of the first hole section, the hole diameter D2 of the second hole section and the hole diameter D3 of the third hole section satisfy D1 < D2 < D3.

10. The integrated device of claim 5, wherein, The first end of the flow guide column (323) penetrates the assembly hole and extends into the oil passage (312).

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