Stator coil holder shell fixing structure capable of pressing accumulated scraps

Abstract

The invention provides a stator coil holder shell fixing structure capable of pressing accumulated scraps, and belongs to the technical field of electronic oil pump shell manufacturing, and the stator coil holder shell fixing structure comprises a shell which is provided with a containing cavity; the stator coil holder is detachably connected with the shell and can be positioned in the accommodating cavity, the stator coil holder is provided with a scrap accumulation body, and the scrap accumulation body can be in contact with the side part of the accommodating cavity; and the stator body is connected with the stator coil holder, and the scrap accumulation body is in contact with the stator body. The electronic oil pump has the beneficial effects that the scrap accumulation space formed by the scrap accumulation body, the stator body and the side part of the accommodating cavity can bag and accommodate aluminum scraps, and the aluminum scraps are prevented from entering other parts of the accommodating cavity and moving along with the movement of oil, so that the cleanliness of a product is ensured, and the electronic oil pump is prevented from breaking down; and the stability and reliability of equipment operation are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of electronic oil pump housing manufacturing, and relates to a stator wire frame housing fixing structure capable of press-fitting accumulated chips. Background Art

[0002] In current electronic oil pumps, the motor's stator bobbin is often installed into the housing by shrink-fitting, which requires cooling after shrink-fitting, resulting in a slow production cycle. If the motor's stator bobbin is installed into the housing by cold pressing, the friction between the stator and the housing will produce a certain amount of pressed aluminum chips. These aluminum chips enter the oil pump's accommodating cavity and are easily moved with the movement of the oil, causing the electronic oil pump to malfunction. This leaves much room for improvement. Summary of the Invention

[0003] The purpose of the present invention is to address the above-mentioned problems existing in the prior art and to propose a stator bobbin housing fixing structure capable of press-fitting accumulated chips.

[0004] The object of the present invention can be achieved through the following technical solutions: A stator bobbin housing fixing structure capable of press-fitting accumulated chips, comprising:

[0005] a housing provided with a receiving cavity;

[0006] a stator bobbin detachably connected to the housing and positionable in the accommodating cavity, the stator bobbin being provided with a chip accumulator, the chip accumulator being contactable with a side of the accommodating cavity;

[0007] a stator body connected to the stator bobbin, wherein the chip accumulation body contacts the stator body;

[0008] When the stator bobbin is mounted to the housing and connected, the stator body rubs against the side of the accommodating cavity, and the chip storage body, the stator body and the side of the accommodating cavity form a chip storage space for accommodating accumulated chips.

[0009] In the above-mentioned stator bobbin shell fixing structure that can be press-fitted with chip accumulation, the chip accumulation body includes an extension portion and a pocket bottom portion, one end of the pocket bottom portion is connected to one end of the extension portion and forms an L-shaped structure, the other end of the extension portion is connected to the stator bobbin, and the other end of the pocket bottom portion can contact the side of the accommodating cavity.

[0010] In the above-mentioned stator bobbin housing fixing structure capable of press-fitting chip accumulation, the pocket bottom is inclined at one end away from the extension portion and gradually approaches the extension portion from the side close to the stator body to the side away from the stator body, thereby forming an anti-scratch slope.

[0011] In the above-mentioned stator bobbin housing fixing structure capable of press-fitting chip accumulation, the pocket bottom is inclined on the side close to the stator body and gradually moves away from the stator body from the end away from the extension portion to the end close to the extension portion, thereby forming a chip accumulation slope.

[0012] In the above-mentioned stator bobbin housing fixing structure capable of press-fitting chip accumulation, the stator bobbin comprises a first frame and a second frame, the first frame is connected to the second frame, and the chip accumulation body is located on the first frame.

[0013] In the above-mentioned stator bobbin housing fixing structure capable of press-fitting chip accumulation, the first frame body is formed with a first slot body, the second frame body is formed with a second slot body, the first slot body and the second slot body are spliced ​​together to form an installation slot, and the stator body is located in the installation slot.

[0014] In the above-mentioned stator bobbin housing fixing structure capable of press-fitting accumulated chips, the first frame body is a tough member.

[0015] In the above-mentioned stator bobbin shell fixing structure that can be press-fitted with chip accumulation, the side of the accommodating cavity includes a friction surface and a chip accumulation surface, the friction surface and the chip accumulation surface are staggered, and when the stator bobbin is installed to the shell and connected, the stator body rubs against the friction surface, and the chip accumulation body, the stator body and the chip accumulation surface form a chip accumulation space for accommodating chips.

[0016] In the above-mentioned stator bobbin housing fixing structure capable of press-fitting chip accumulation, the inner diameter of the chip accumulation surface is smaller than the inner diameter of the friction surface.

[0017] In the above-mentioned stator bobbin housing fixing structure capable of press-fitting chip accumulation, the side portion of the accommodating cavity further includes a chip accumulation groove, and the chip accumulation groove is located between the friction surface and the chip accumulation surface.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The chip storage space formed by the chip storage body, the stator body and the side of the accommodating cavity can hold and accommodate the aluminum chips, preventing them from entering other parts of the accommodating cavity and moving with the movement of the oil, thereby ensuring the cleanliness of the product, preventing the electronic oil pump from malfunctioning, and improving the stability and reliability of the equipment operation.

[0020] 2. The L-shaped chip storage body design helps to more effectively capture and contain aluminum chips, preventing them from entering other parts of the storage cavity and moving with the movement of the oil.

[0021] 3. The design of the anti-scratch bevel reduces the contact area between the chip accumulation body and the side of the accommodating cavity, reduces the risk of scratching and the possibility of generating friction chips, and ensures smoothness and safety during the assembly process.

[0022] 4. The design of the chip accumulation slope is conducive to the natural sliding of the chips from the end away from the extension part to the end close to the extension part, so that the chips are always kept in the chip accumulation space, avoiding the chips from accumulating at the contact part between the bottom of the pocket and the accommodating cavity and falling out from the gap between the two.

[0023] 5. The friction surface and the chip storage surface are staggered, and a chip storage space for accommodating chips is formed by the chip storage body, the stator body and the chip storage surface, which can distinguish the friction surface from the chip storage surface and ensure that the chip storage surface will not produce burrs due to friction and affect the chip storage function. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the stator bobbin and the stator body of the present invention.

[0025] Figure 2 This is a front view of the stator bobbin and the stator body of the present invention.

[0026] Figure 3 for Figure 2 Cross-sectional view from the AA perspective.

[0027] Figure 4 for Figure 3 Exploded diagram.

[0028] Figure 5 It is a front view of the housing of the present invention.

[0029] Figure 6 for Figure 5 Cross-sectional view from the BB perspective.

[0030] Figure 7 It is a structural schematic diagram of the stator bobbin housing fixing structure capable of press-fitting accumulated chips according to the present invention.

[0031] Figure 8 for Figure 7 Cross-sectional view from CC perspective.

[0032] In the figure, 100, shell; 110, accommodating cavity; 111, friction surface; 112, chip storage surface; 113, chip storage groove; 200, stator wire frame; 210, chip storage body; 211, extension portion; 212, pocket bottom; 213, anti-scratch inclined surface; 214, chip storage inclined surface; 220, first frame; 221, first groove body; 230, second frame; 231, second groove body; 300, stator body. DETAILED DESCRIPTION

[0033] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0034] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, in the present invention, descriptions such as "first," "second," and "one" are for descriptive purposes only and should not be understood to indicate or imply their relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0036] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0037] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0038] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

[0039] like Figures 1-8 As shown, a stator bobbin housing fixing structure capable of press-fitting accumulated chips comprises: a housing 100 , a stator bobbin 200 and a stator body 300 .

[0040] The housing 100 is provided with a receiving cavity 110 .

[0041] Specifically, the accommodating cavity 110 provides physical protection for sensitive components inside the electronic oil pump, preventing dust, moisture and other pollutants from entering, thereby ensuring that the electronic oil pump can operate stably in various environments.

[0042] The stator bobbin 200 is detachably connected to the housing 100 and can be located in the accommodating cavity 110 . The stator bobbin 200 is provided with a chip accumulator 210 . The chip accumulator 210 can contact a side of the accommodating cavity 110 .

[0043] Specifically, the structure of the chip storage body 210 is not specifically limited here, and can be a chip storage hook, or a chip storage basket, etc.

[0044] The stator body 300 is connected to the stator bobbin 200 , and the chip accumulation body 210 is in contact with the stator body 300 .

[0045] When the stator bobbin 200 is mounted on the housing 100 , the stator body 300 rubs against the side of the accommodating cavity 110 , and the chip storage body 210 , the stator body 300 and the side of the accommodating cavity 110 form a chip storage space for accommodating chips.

[0046] In the prior art, the stator bobbin 200 of the motor is installed in the housing 100 by shrink fitting, which requires cooling after shrink fitting, so the production cycle is slow. If the stator bobbin 200 of the motor is installed in the housing 100 by cold pressing, the friction between the stator and the housing 100 will generate a certain amount of pressed aluminum chips. These aluminum chips enter the accommodating cavity 110 of the oil pump and are easily moved with the movement of the oil, causing the electronic oil pump to malfunction.

[0047] In this embodiment, the chip storage space formed by the chip storage body 210, the stator body 300 and the side of the accommodating cavity 110 can hold and accommodate the aluminum chips, preventing them from entering other parts of the accommodating cavity 110 and moving with the movement of the oil, thereby ensuring the cleanliness of the product to prevent the electronic oil pump from malfunctioning and improving the stability and reliability of the equipment operation.

[0048] In addition, the stator bobbin housing fixing structure capable of press-fitting chip accumulation can install the stator bobbin 200 of the motor into the housing 100 by cold pressing, thereby eliminating the need for a heat-shrink cooling device and speeding up the work cycle.

[0049] like Figures 1-8 As shown, based on the above embodiment, the chip storage body 210 includes an extension portion 211 and a pocket bottom 212 .

[0050] One end of the bottom portion 212 is connected to one end of the extension portion 211 to form an L-shaped structure, the other end of the extension portion 211 is connected to the stator bobbin 200 , and the other end of the bottom portion 212 can contact the side of the accommodating cavity 110 .

[0051] Specifically, the distribution direction of the extension portions 211 is along the axial direction of the stator.

[0052] Specifically, the distribution direction of the pocket bottom 212 is along the circumferential direction of the stator.

[0053] In this embodiment, the L-shaped chip storage body 210 is designed to more effectively hold and contain the aluminum chips, preventing them from entering other parts of the accommodating cavity 110 and moving with the movement of the oil.

[0054] like Figures 1-8 As shown, based on the above embodiment, the end of the bottom portion 212 away from the extension portion 211 is inclined and gradually approaches the extension portion 211 from the side close to the stator body 300 to the side away from the stator body 300, thereby forming an anti-scratch slope 213.

[0055] In this embodiment, the design of the anti-scratch slope 213 reduces the contact area between the chip accumulation body 210 and the side of the accommodating cavity 110, reduces the risk of scratching and the possibility of additional friction chips, and ensures smoothness and safety during the assembly process.

[0056] Furthermore, one side of the anti-scratch bevel 213 overlaps with a side of the pocket bottom 212 on the end away from the extension portion 211 and close to the stator body 300, so that the contact position between the pocket bottom 212 and the side of the accommodating cavity 110 is in a straight line, greatly reducing the friction generated between the pocket bottom 212 and the side of the accommodating cavity 110.

[0057] like Figures 1-8 As shown, based on the above embodiment, the bottom portion 212 is inclined at a side close to the stator body 300 and gradually moves away from the stator body 300 from an end away from the extension portion 211 to an end close to the extension portion 211 , thereby forming a chip accumulation slope 214 .

[0058] In this embodiment, the design of the chip accumulation slope 214 is conducive to the natural sliding of the chips from the end away from the extension portion 211 to the end close to the extension portion 211, so that the chips always remain in the chip accumulation space, avoiding the chips from accumulating in the contact part between the bottom 212 of the pocket and the accommodating cavity 110 and falling out from the gap between the two.

[0059] like Figures 1-8As shown, based on the above embodiment, the stator bobbin 200 includes a first frame 220 and a second frame 230 . The first frame 220 is connected to the second frame 230 , and the chip storage body 210 is located in the first frame 220 .

[0060] In this embodiment, dividing the stator bobbin 200 into two parts not only facilitates manufacturing and installation, but also allows the positions of the parts to be adjusted or damaged parts to be replaced as needed, thereby increasing the flexibility of maintenance.

[0061] In addition, the first frame 220 and the second frame 230 can be rigid parts or flexible parts respectively, which is not specifically limited here.

[0062] Specifically, the first frame 220 and the second frame 230 are connected together by bonding or other fixed connection methods.

[0063] like Figures 1-8 As shown, based on the above embodiment, the first frame 220 forms a first slot 221, and the second frame 230 forms a second slot 231. The first slot 221 and the second slot 231 are combined to form a mounting slot, and the stator body 300 is located in the mounting slot.

[0064] In this embodiment, the stator body 300 is located in the installation groove formed by the first groove body 221 of the first frame body 220 and the second groove body 231 of the second frame body 230, which facilitates the installation of the stator body 300 while ensuring its stability, making the overall structure more compact.

[0065] like Figures 1-8 As shown, based on the above embodiment, the first frame 220 is a tough member.

[0066] Specifically, the first frame 220 is a plastic component.

[0067] In this embodiment, the first frame 220 is a tough member, so that the chip storage body 210 can be slightly deformed when in contact with the side of the accommodating cavity 110 to avoid the side of the accommodating cavity 110 and prevent severe friction between the two.

[0068] In addition, the first frame 220 made of tough material can better absorb vibration and impact force, reduce scratches on the side of the accommodating cavity 110, and enhance the durability of the stator bobbin housing fixing structure that can be press-fitted with chip accumulation.

[0069] like Figures 1-8As shown, on the basis of the above embodiment, the side of the accommodating cavity 110 includes a friction surface 111 and a chip storage surface 112, and the friction surface 111 is staggered from the chip storage surface 112. When the stator bobbin 200 is installed and connected to the housing 100, the stator body 300 rubs against the friction surface 111, and the chip storage body 210, the stator body 300 and the chip storage surface 112 form a chip storage space for accommodating chips.

[0070] Specifically, the friction surface 111 and the chip storage surface 112 are staggered to form a stepped structure.

[0071] In this embodiment, the friction surface 111 and the chip storage surface 112 are staggered, and a chip storage space for accommodating chips is formed by the chip storage body 210, the stator body 300 and the chip storage surface 112, which can distinguish the friction surface 111 from the chip storage surface 112 and ensure that the chip storage surface 112 will not produce burrs due to friction and affect the chip storage function.

[0072] like Figures 1-8 As shown, based on the above embodiment, the inner diameter of the chip storage surface 112 is smaller than the inner diameter of the friction surface 111 .

[0073] In this embodiment, the inner diameter of the chip accumulation surface 112 is smaller than the inner diameter of the friction surface 111, so that the chips accumulated on the stator body 300 will not fall directly from the friction surface 111 but fall onto the table where the chip accumulation surface 112 is located, thereby controlling the chip accumulation position and also positioning the stator body 300.

[0074] like Figures 1-8 As shown, based on the above embodiment, the side of the accommodating cavity 110 further includes a chip accumulation groove 113 , and the chip accumulation groove 113 is located between the friction surface 111 and the chip accumulation surface 112 .

[0075] In this embodiment, a chip storage groove 113 is added between the friction surface 111 and the chip storage surface 112 to provide additional storage space for accumulated chips, thereby preventing the stator body 300 from being cold-pressed due to the presence of accumulated chips between the stator body 300 and the table where the chip storage surface 112 is located.

[0076] This stator wire frame housing fixing structure capable of press-fitting accumulated chips is applicable to electronic oil pumps, but is also applicable to other pump devices such as electronic water pumps, and is not specifically limited here.

Claims

1. A stator bobbin housing fixing structure capable of press-fitting accumulated chips, characterized in that: include: a housing provided with a receiving cavity; a stator bobbin detachably connected to the housing and positionable in the accommodating cavity, the stator bobbin being provided with a chip accumulator, the chip accumulator being contactable with a side of the accommodating cavity; a stator body connected to the stator bobbin, wherein the chip accumulation body contacts the stator body; When the stator bobbin is mounted to the housing and connected, the stator body rubs against the side of the accommodating cavity, and the chip storage body, the stator body and the side of the accommodating cavity form a chip storage space for accommodating accumulated chips.

2. A stator bobbin housing fixing structure capable of press-fitting accumulated chips according to claim 1, characterized in that: The chip storage body includes an extension portion and a pocket bottom, one end of the pocket bottom is connected to one end of the extension portion to form an L-shaped structure, the other end of the extension portion is connected to the stator wire frame, and the other end of the pocket bottom can contact the side of the accommodating cavity.

3. A stator bobbin housing fixing structure capable of press-fitting accumulated chips according to claim 2, characterized in that: One end of the pocket bottom away from the extension portion is inclined and gradually approaches the extension portion from a side close to the stator body to a side away from the stator body, thereby forming an anti-scratch inclined surface.

4. A stator bobbin housing fixing structure capable of press-fitting accumulated chips according to claim 2, characterized in that: The side of the pocket bottom close to the stator body is inclined and gradually moves away from the stator body from the end away from the extension portion to the end close to the extension portion, thereby forming a chip accumulation slope.

5. The stator bobbin housing fixing structure capable of press-fitting accumulated chips according to claim 1, characterized in that: The stator bobbin includes a first frame and a second frame, the first frame is connected to the second frame, and the chip storage body is located on the first frame.

6. A stator bobbin housing fixing structure capable of press-fitting accumulated chips according to claim 5, characterized in that: The first frame is formed with a first slot body, the second frame is formed with a second slot body, the first slot body and the second slot body are assembled to form a mounting slot, and the stator body is located in the mounting slot.

7. A stator bobbin housing fixing structure capable of press-fitting accumulated chips according to claim 5, characterized in that: The first frame is a tough member.

8. The stator bobbin housing fixing structure capable of press-fitting accumulated chips according to claim 1, characterized in that: The side of the accommodating cavity includes a friction surface and a chip storage surface, the friction surface and the chip storage surface are staggered, and when the stator wire frame is installed to the housing, the stator body rubs against the friction surface, and the chip storage body, the stator body and the chip storage surface form a chip storage space for accommodating accumulated chips.

9. A stator bobbin housing fixing structure capable of press-fitting accumulated chips according to claim 8, characterized in that: The inner diameter of the chip storage surface is smaller than the inner diameter of the friction surface.

10. A stator bobbin housing fixing structure capable of press-fitting accumulated chips according to claim 9, characterized in that: The side portion of the accommodating cavity further includes a chip accumulation groove, and the chip accumulation groove is located between the friction surface and the chip accumulation surface.

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