Motor stator coil holder PCBA connection structure and electronic oil pump

Abstract

The utility model provides a motor stator coil holder PCBA connecting structure and an electronic oil pump, and belongs to the technical field of electronic oil pumps, the motor stator coil holder PCBA connecting structure comprises a motor stator coil holder provided with a pressing rivet seat, and the pressing rivet seat is provided with a pressing rivet head; the PCBA is provided with a pressing rivet opening, the depth of the pressing rivet opening is smaller than the length of the pressing rivet head, the inner circumference of the pressing rivet opening is smaller than the outer circumference of the pressing rivet base and larger than or equal to the outer circumference of the pressing rivet head, and one face of the PCBA makes contact with the pressing rivet base; the pressing rivet head is provided with a pressing rivet opening, the part, exceeding the pressing rivet opening, of the pressing rivet head is pressed and riveted to form a pressing rivet part, the outer circumference of the pressing rivet part is larger than the inner circumference of the pressing rivet opening, the pressing rivet part makes contact with the other face of the PCBA, and therefore the PCBA is limited between the pressing rivet base and the pressing rivet part. The beneficial effects of the utility model are that compared with bolt connection, extra parts are not needed, and processing is fast on the basis of ensuring relative fixation of the PCBA and the motor stator coil holder.

Description

Technical Field

[0001] This utility model belongs to the field of electronic oil pump technology, and relates to a motor stator frame PCBA connection structure and an electronic oil pump. Background Technology

[0002] Currently, the connection between the motor stator frame and the PCBA (Printed Circuit Board Assembly) generally adopts the traditional bolt fixing process, which requires additional fasteners and manual tightening. This results in inconvenient processing and long processing time, leaving considerable room for improvement. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a motor stator frame PCBA connection structure and an electronic oil pump.

[0004] The objective of this utility model can be achieved through the following technical solution: a motor stator frame PCBA connection structure, comprising:

[0005] The motor stator frame is provided with a rivet base, and the rivet base is provided with a rivet head;

[0006] PCBA has a riveting opening, the depth of which is less than the length of the riveting head, the inner circumference of which is less than the outer circumference of the riveting base, the inner circumference of which is greater than or equal to the outer circumference of the riveting head, and one side of the PCBA is in contact with the riveting base.

[0007] The portion of the riveting head that extends beyond the riveting opening is riveted to form a riveting part. The outer circumference of the riveting part is larger than the inner circumference of the riveting opening. The riveting part contacts the other side of the PCBA, thereby confining the PCBA between the riveting seat and the riveting part.

[0008] In the above-mentioned motor stator frame PCBA connection structure, the rivet base has a first positioning surface, and the PCBA also has a second positioning surface. When the PCBA is restricted between the rivet base and the rivet part, the first positioning surface contacts the second positioning surface.

[0009] In the above-mentioned motor stator frame PCBA connection structure, the riveting part has a third positioning surface, and the PCBA also has a fourth positioning surface. The fourth positioning surface is located on the back of the second positioning surface. When the PCBA is restricted between the riveting seat and the riveting part, the third positioning surface contacts the fourth positioning surface.

[0010] In the above-mentioned motor stator frame PCBA connection structure, the riveting part also has a fixed curved surface, the edge of the fixed curved surface coincides with the edge of the third positioning surface, and the fixed curved surface is located on the back side of the third positioning surface.

[0011] In the above-mentioned motor stator frame PCBA connection structure, the fixed surface is a sphere, and the middle part of the fixed surface is far away from the PCBA relative to its own edge.

[0012] In the above-mentioned motor stator frame PCBA connection structure, the crimping head is a plastic part.

[0013] In the above-mentioned motor stator wire frame PCBA connection structure, the motor stator wire frame is further provided with a positioning seat, the positioning seat has a fifth positioning surface, and the PCBA also has a sixth positioning surface. When the PCBA is restricted between the pressing seat and the pressing part, the fifth positioning surface contacts the sixth positioning surface.

[0014] An electronic oil pump is also provided, including the aforementioned motor stator wire frame circuit board connection structure, and further including: a pump body, wherein the motor stator wire frame and the PCBA are both located in the pump body.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. By using a press-fitting method, the part of the press-fitting head that extends beyond the press-fitting opening becomes the press-fitting part, thereby confining the PCBA between the press-fitting seat and the press-fitting part. Compared with bolt connection, no additional parts are required, and the processing is faster while ensuring that the PCBA and the motor stator frame are relatively fixed.

[0017] 2. Both the first positioning surface and the second positioning surface are planes. When the PCBA is restricted between the rivet base and the rivet part, the first positioning surface and the second positioning surface are in contact, thereby ensuring the stability of the PCBA when it is in contact with the rivet base and preventing it from tilting or shaking at will.

[0018] 3. The third positioning surface is a plane, and the fourth positioning surface is a plane that matches the third positioning surface during the riveting process. When the PCBA is restricted between the riveting base and the riveting part, the third positioning surface and the fourth positioning surface are in contact, thereby ensuring the stability of the PCBA when it is in contact with the riveting base and preventing it from tilting or shaking at will.

[0019] 4. The fixed curved surface is the surface formed during the riveting process. The edge of the fixed curved surface coincides with the edge of the third positioning surface. The fixed curved surface is used to protect the riveting head so that it will not be easily touched during subsequent processing, which would cause the riveting head to be skewed and thus affect the reliability of the connection.

[0020] 5. The motor stator frame is equipped with an additional positioning seat for positioning. The fifth and sixth positioning surfaces are both flat. When the PCBA is restricted between the rivet seat and the rivet part, the fifth and sixth positioning surfaces are in contact, thereby ensuring the stability of the PCBA when it is in contact with the rivet seat and preventing it from tilting or shaking at will. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the motor stator frame PCBA connection structure of this utility model.

[0022] Figure 2 This is an exploded view of the motor stator frame PCBA connection structure of this utility model.

[0023] Figure 3 This is a top view of the motor stator frame PCBA connection structure of this utility model.

[0024] Figure 4 for Figure 3 A cross-sectional view from the perspective of AA.

[0025] Figure 5 This is a top view of the exploded state of the motor stator frame PCBA connection structure of this utility model.

[0026] Figure 6 for Figure 5 A cross-sectional view from the perspective of AA.

[0027] Figure 7 This is a schematic diagram of the motor stator frame after riveting according to this utility model.

[0028] Figure 8 This is a schematic diagram of the motor stator frame of this utility model before riveting.

[0029] Figure 9 This is a schematic diagram of the internal structure of the electronic oil pump of this utility model.

[0030] In the diagram, 100 is the motor stator frame; 110 is the crimping seat; 111 is the first positioning surface; 120 is the crimping head; 130 is the crimping part; 131 is the third positioning surface; 132 is the fixed curved surface; 140 is the positioning seat; 141 is the fifth positioning surface; 200 is the PCBA; 210 is the crimping port; 220 is the second positioning surface; 230 is the fourth positioning surface; 240 is the sixth positioning surface; and 300 is the pump body. Detailed Implementation

[0031] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0036] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0037] like Figures 1-8 As shown, a motor stator frame PCBA connection structure includes: a motor stator frame 100 and a PCBA 200.

[0038] The motor stator frame 100 is provided with a riveting seat 110, and the riveting seat 110 is provided with a riveting head 120.

[0039] PCBA200 has a riveting opening 210, the depth of which is less than the length of the riveting head 120, the inner circumference of which is less than the outer circumference of the riveting seat 110, the inner circumference of which is greater than or equal to the outer circumference of the riveting head 120, and one side of PCBA200 is in contact with the riveting seat 110.

[0040] The portion of the riveting head 120 extending beyond the riveting opening 210 is riveted to form a riveting part 130. The outer periphery of the riveting part 130 is larger than the inner periphery of the riveting opening 210. The riveting part 130 contacts the other side of the PCBA 200, thereby confining the PCBA 200 between the riveting seat 110 and the riveting part 130.

[0041] Preferably, the riveting head 120 is a plastic part. By setting the riveting head 120 as a plastic part, the riveting head 120 can be deformed by high temperature heating to form the riveting part 130.

[0042] In this embodiment, the portion of the riveting head 120 extending beyond the riveting opening 210 is transformed into a riveting part 130 by riveting, thereby confining the PCBA200 between the riveting seat 110 and the riveting part 130. Compared to bolt connection, no additional parts are required, and the processing is faster while ensuring that the PCBA200 and the motor stator frame 100 are relatively fixed.

[0043] like Figures 1-8 As shown, based on the above embodiment, the rivet base 110 has a first positioning surface 111, and the PCBA 200 also has a second positioning surface 220. When the PCBA 200 is restricted between the rivet base 110 and the rivet part 130, the first positioning surface 111 contacts the second positioning surface 220.

[0044] In this embodiment, both the first positioning surface 111 and the second positioning surface 220 are planar. When the PCBA200 is restricted between the rivet base 110 and the rivet part 130, the first positioning surface 111 and the second positioning surface 220 are in contact, thereby ensuring the stability of the PCBA200 when it is in contact with the rivet base 110, and preventing it from tilting or shaking at will.

[0045] like Figures 1-8 As shown, based on the above embodiment, the riveting part 130 has a third positioning surface 131, and the PCBA200 also has a fourth positioning surface 230. The fourth positioning surface 230 is located on the back of the second positioning surface 220. When the PCBA200 is restricted between the riveting seat 110 and the riveting part 130, the third positioning surface 131 contacts the fourth positioning surface 230.

[0046] In this embodiment, the third positioning surface 131 is a plane, and the fourth positioning surface 230 is a plane that matches the third positioning surface 131 formed during the riveting process. When the PCBA200 is restricted between the riveting base 110 and the riveting part 130, the third positioning surface 131 and the fourth positioning surface 230 come into contact, thereby ensuring the stability of the PCBA200 when it comes into contact with the riveting base 110, and preventing it from tilting or shaking at will.

[0047] like Figures 1-8 As shown, based on the above embodiment, the riveting part 130 also has a fixed curved surface 132, the edge of the fixed curved surface 132 coincides with the edge of the third positioning surface 131, and the fixed curved surface 132 is located on the back side of the third positioning surface 131.

[0048] In this embodiment, the fixed curved surface 132 is a surface formed during the riveting process. The edge of the fixed curved surface 132 coincides with the edge of the third positioning surface 131. The fixed curved surface 132 is used to protect the riveting head 120 so that it will not be easily touched during subsequent processing, causing the riveting head 120 to become skewed, thereby affecting the reliability of the connection.

[0049] like Figures 1-8 As shown, based on the above embodiment, the fixed surface 132 is a sphere, and the middle part of the fixed surface 132 is far away from the PCBA200 relative to its own edge.

[0050] In this embodiment, the fixed surface 132 is a sphere and the middle part of the fixed surface 132 is far away from the PCBA200 relative to its own edge, which plays a role in protecting the riveting head 120. It is generally difficult to apply force to pry the riveting head 120, causing the riveting head 120 to be skewed.

[0051] like Figures 1-8 As shown, based on the above embodiment, the motor stator frame 100 is further provided with a positioning seat 140, the positioning seat 140 has a fifth positioning surface 141, and the PCBA 200 also has a sixth positioning surface 240. When the PCBA 200 is restricted between the riveting seat 110 and the riveting part 130, the fifth positioning surface 141 contacts the sixth positioning surface 240.

[0052] In this embodiment, the motor stator frame 100 is provided with an additional positioning seat 140 for positioning. The fifth positioning surface 141 and the sixth positioning surface 240 are both planar. When the PCBA200 is restricted between the riveting seat 110 and the riveting part 130, the fifth positioning surface 141 and the sixth positioning surface 240 are in contact, thereby ensuring the stability of the PCBA200 when it is in contact with the riveting seat 110, and preventing it from tilting or shaking at will.

[0053] Preferably, the second positioning surface 220 coincides with the sixth positioning surface 240.

[0054] like Figures 1-9 As shown, an electronic oil pump includes the aforementioned motor stator frame PCBA connection structure, and further includes a pump body 300, wherein the motor stator frame 100 and the PCBA 200 are both located within the pump body 300.

Claims

1. A motor stator frame PCBA connection structure, characterized in that, include: The motor stator frame is provided with a rivet base, and the rivet base is provided with a rivet head; PCBA has a riveting opening, the depth of which is less than the length of the riveting head, the inner circumference of which is less than the outer circumference of the riveting base, the inner circumference of which is greater than or equal to the outer circumference of the riveting head, and one side of the PCBA is in contact with the riveting base. The portion of the riveting head that extends beyond the riveting opening is riveted to form a riveting part. The outer circumference of the riveting part is larger than the inner circumference of the riveting opening. The riveting part contacts the other side of the PCBA, thereby confining the PCBA between the riveting seat and the riveting part.

2. The motor stator frame PCBA connection structure as described in claim 1, characterized in that: The press-fit base has a first positioning surface, and the PCBA also has a second positioning surface. When the PCBA is constrained between the press-fit base and the press-fit part, the first positioning surface contacts the second positioning surface.

3. The motor stator frame PCBA connection structure as described in claim 2, characterized in that: The riveting part has a third positioning surface, and the PCBA also has a fourth positioning surface. The fourth positioning surface is located on the back of the second positioning surface. When the PCBA is constrained between the riveting seat and the riveting part, the third positioning surface contacts the fourth positioning surface.

4. The motor stator frame PCBA connection structure as described in claim 3, characterized in that: The riveting part also has a fixed curved surface, the edge of which coincides with the edge of the third positioning surface, and the fixed curved surface is located on the back side of the third positioning surface.

5. The motor stator frame PCBA connection structure as described in claim 4, characterized in that: The fixed surface is a sphere, and the middle part of the fixed surface is far away from the PCBA relative to its own edge.

6. The motor stator frame PCBA connection structure as described in claim 1, characterized in that: The rivet head is a plastic part.

7. The motor stator frame PCBA connection structure as described in claim 1, characterized in that: The motor stator frame is also provided with a positioning seat, the positioning seat has a fifth positioning surface, and the PCBA also has a sixth positioning surface. When the PCBA is restricted between the riveting seat and the riveting part, the fifth positioning surface and the sixth positioning surface are in contact.

8. An electronic oil pump, characterized in that, The device includes a motor stator frame PCBA connection structure as described in any one of claims 1-7, and further includes a pump body, wherein the motor stator frame and the PCBA are both located within the pump body.

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