Integrated shell for electronic oil pump

Abstract

An integrated shell for an electronic oil pump comprises a motor stator and a shell body, and a wiring terminal is arranged on the motor stator; a containing cavity is formed in the E end of the shell, the wiring terminal penetrates through the bottom of the containing cavity formed in the E end of the shell, at least one set of glue grooves are formed in the containing cavity, the wiring terminal penetrates through the bottom of the containing cavity formed in the E end of the shell through the glue grooves, and a set of protruding blocks are symmetrically distributed on groove openings of the glue grooves. At least one set of positioning columns A is evenly distributed in the containing cavity formed in the E end of the shell, an assembly groove is further formed in the containing cavity formed in the E end of the shell and is square or kidney-shaped, a containing cavity is further formed in the F end of the shell, at least one set of positioning columns B is distributed in the containing cavity, and the positioning columns A and the assembly groove are arranged in the containing cavity. And the connecting cups are further uniformly distributed on the outer side wall of the shell, so that the situation that the PCBA is damaged due to deformation in the PCBA assembling process of the shell of the electronic oil pump is avoided, and the production cost is reduced.

Description

An integrated housing for an electronic oil pump Technical Field

[0001] This application relates to the field of electronic oil pump technology, and in particular to an integrated housing for an electronic oil pump. Background Technology

[0002] The engine's electronic oil pump is an electric motor-driven oil pump, mainly composed of a motor, controller and pump body. It can adjust the output pressure and flow as needed to adapt to different working conditions. It has the advantages of high precision and low energy consumption, and is widely used in automobiles and construction machinery.

[0003] In the existing technology, the housing of the electronic oil pump is assembled by pressing the PCBA onto the housing of the electronic oil pump. However, during the pressing process, the PCBA is prone to deformation, which may even lead to excessive deformation and damage to the PCBA, thus increasing production costs. Summary of the Invention

[0004] This utility model provides an integrated housing for an electronic oil pump, which prevents the PCBA from deforming and being damaged during PCBA assembly, thereby reducing production costs.

[0005] To achieve the aforementioned objectives, this application adopts the following technical solution:

[0006] An integrated housing for an electronic oil pump, characterized in that it includes...

[0007] Motor stator, wherein the motor stator is provided with wiring terminals;

[0008] A housing covering the motor stator has a cavity formed at its E end. A terminal block passes through the bottom of the cavity formed at the E end of the housing. The cavity contains at least one set of adhesive grooves. The terminal block passes through the adhesive grooves to the bottom of the cavity formed at the E end of the housing. A set of protrusions are symmetrically distributed on the opening of the adhesive grooves. At least one set of positioning pins A are also evenly distributed inside the cavity formed at the E end of the housing. An assembly groove, which is square or oblong in shape, is also provided inside the cavity formed at the E end of the housing. A cavity is also formed at the F end of the housing, containing at least one set of positioning pins B. Connecting cups are also evenly distributed on the outer wall of the housing.

[0009] In some alternative implementations, the terminal block is a fisheye terminal.

[0010] In some alternative implementations, a set of positioning posts A includes at least three positioning posts A.

[0011] In some alternative embodiments, strip-shaped protrusions are evenly distributed on the sidewall of the positioning post A.

[0012] In some alternative implementations, each of the strip-shaped protrusions extends along the axial direction of the positioning post A.

[0013] In some alternative embodiments, a welding ring is also provided at the end of the housing at end E.

[0014] In some alternative implementations, a set of positioning posts B includes at least two positioning posts B.

[0015] In some alternative embodiments, at least one set of nuts is distributed on the F end of the housing, the nuts being enclosed inside the housing.

[0016] In some alternative implementations, a set of nuts includes at least three nuts.

[0017] In some alternative implementations, the connecting cup has an internal metal bushing.

[0018] The integrated housing for an electronic oil pump provided in this application has the following advantages:

[0019] In the technical solution adopted in this application, an integrated housing for an electronic oil pump has terminals on its motor stator. A receiving cavity is formed on the E end of the housing, and the terminals pass through the bottom of the receiving cavity formed on the E end of the housing. At least one set of adhesive grooves is provided inside the receiving cavity, through which the terminals pass through the bottom of the receiving cavity formed on the E end of the housing. A set of protrusions is symmetrically distributed on the opening of the adhesive grooves. At least one set of positioning posts A is also evenly distributed inside the receiving cavity formed on the E end of the housing. An assembly groove, square or oblong in shape, is also provided inside the receiving cavity formed on the E end of the housing. A receiving cavity is also formed on the F end of the housing, and at least one set of positioning posts B is distributed inside the receiving cavity. Connecting cups are also evenly distributed on the outer wall of the housing. This design prevents PCBA deformation and damage during PCBA assembly, reducing production costs. Attached Figure Description

[0020] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 is a perspective view of an integrated housing for an electronic oil pump according to this application;

[0022] Figure 2 is a perspective view of an integral housing for an electronic oil pump according to this application from another angle;

[0023] Figure 3 is an enlarged view of circle A shown in Figure 1;

[0024] Figure 4 is a perspective view of the positioning post A in an integrated housing for an electronic oil pump according to this application;

[0025] Figure 5 is another perspective view of an integrated housing for an electronic oil pump according to this application.

[0026] Figure label:

[0027] 10. Motor stator; 11. Terminal block;

[0028] 20. Housing; 21. Receiving cavity; 211. Glue groove; 2111. Protrusion; 212. Positioning post A; 2121. Strip-shaped protrusion; 2122. Base; 2123. Column; 213. Assembly groove; 214. Welding ring; 215. Positioning post B; 216. Nut; 217. Connecting cup; 2171. Metal bushing. Detailed Implementation

[0029] The specific embodiments of this application are described below with reference to the accompanying drawings and examples. Through the content described in this specification, those skilled in the art can clearly and completely understand the technical solution, the technical problem solved, and the resulting technical effects of this application. It is understood that the specific embodiments described herein are only for explaining this application and not for limiting it. Furthermore, for ease of description, only the parts related to this application are shown in the accompanying drawings.

[0030] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the contents described in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size should fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0031] The use of terms such as "first," "second," and "the" does not imply quantity limitation and may indicate singular or plural. The terms "comprising," "including," "having," and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or modules is not limited to the listed steps or units, but may also include steps or units not listed, or other steps or units inherent to such processes, methods, products, or devices. The terms "connected," "linked," and "coupled" used in this application are not limited to physical or mechanical connections, but may also include direct or indirect electrical connections.

[0032] It should also be noted that the longitudinal section corresponding to the embodiment of this application can be the section corresponding to the front view direction, the transverse section can be the section corresponding to the right view direction, and the horizontal section can be the section corresponding to the top view direction.

[0033] Furthermore, where there is no conflict, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] Referring to Figures 1 and 2, Figure 1 is a perspective view of an integrated housing for an electronic oil pump according to this application, and Figure 2 is an enlarged view of circle A shown in Figure 1. As shown in Figures 1 and 2, an integrated housing 20 for an electronic oil pump includes a motor stator 10 and a housing 20 covering the motor stator 10. It should be noted that the housing 20 is made of plastic, and the motor stator 10 and the housing 20 are integrally injection molded. This integral injection molding process reduces the overall weight of the electronic oil pump, lowers the complexity of the assembly process, and reduces the amount of O-rings used during assembly, thus reducing production costs. The motor stator 10 is provided with terminals 11, specifically, fisheye terminals.

[0035] Referring again to Figure 1 and Figure 3, Figure 3 is a perspective view of a positioning post A in an integrated housing for an electronic oil pump according to this application. As shown in Figures 1 and 3, a receiving cavity 21 is formed on the E end of the housing 20. A terminal 11 passes through the bottom of the receiving cavity 21 formed on the E end of the housing 20. The receiving cavity 21 has at least one set of adhesive grooves 211 inside. The terminal 11 passes through the adhesive grooves 211 to the bottom of the receiving cavity 21 formed on the E end of the housing 20 for sealing the terminal 11 with adhesive. A set of protrusions 2111 are symmetrically distributed on the groove opening of the adhesive grooves 211 to avoid inconsistent pressing degree between the PCBA and the terminal 11 during the pressing of the PCBA into the housing 20 of the electronic oil pump, which could lead to deformation or even damage to the PCBA, thereby reducing production costs. The key feature is that the terminal 11 is a fisheye terminal, which is plugged into the conductive holes on the PCBA. The insertion depth is uncertain within a certain range, which can lead to inconsistent insertion depths when each terminal 11 is engaged with the corresponding conductive hole on the PCBA, causing the PCBA to twist and deform. However, by setting a protrusion 2111 on the groove of the glue groove 211, the protrusion 2111 is set with an appropriate height as needed, so that when the terminal 11 is fully engaged with the corresponding conductive hole on the PCBA, the protrusion 2111 just abuts against the PCBA. This avoids inconsistent pressure when each conductive hole on the PCBA is engaged with each terminal 11, thus preventing the PCBA from deforming.

[0036] Referring again to Figure 1, and also to Figures 4 and 5, Figure 4 is a perspective view of an integrated housing for an electronic oil pump according to this application from another angle, and Figure 5 is a perspective view of an integrated housing for an electronic oil pump according to this application from yet another angle. As shown in Figures 1, 4, and 5, at least one set of positioning posts A212 are evenly distributed inside the accommodating cavity 21 formed at end E of the housing 20. Each set of positioning posts A212 includes at least three positioning posts A212. Strip-shaped protrusions 2121 are evenly distributed on the sidewalls of the positioning posts A212. Each strip-shaped protrusion 2121 extends along the axial direction of the positioning post A212 to achieve preliminary positioning of the PCBA during assembly. An interference fit is made between the strip-shaped protrusions 2121 and the connecting holes (not shown in the figure) on the PCBA, improving the stability of the PCBA assembly inside the housing 20, thereby improving the reliability of the electronic oil pump during use. Specifically, the positioning posts A212... The system includes a base 2122 and a column 2123 connected to the base 2122. Strip-shaped protrusions 2121 are evenly distributed on the sidewalls of the column 2123, each extending along the axial direction of the column 2123. Furthermore, the strip-shaped protrusions 2121 can extend parallel to the axial direction of the column 2123, or they can extend at a certain angle to the axial direction of the column 2123, as long as an interference fit can be achieved between the strip-shaped protrusions 2121 and the connecting holes on the PCBA. An assembly groove 213 is also provided inside the receiving cavity 21 formed at the E end of the housing 20 for assembling corresponding structural components. Here, the shape of the assembly groove 213 can be square or oblong, etc. In addition, a welding ring 214 is provided at the end of the E end of the housing 20 to facilitate laser welding with corresponding structural components.

[0037] Referring again to Figure 2, a receiving cavity 21 is also formed on the F end of the housing 20. At least one set of positioning posts B215 is distributed inside the receiving cavity 21. Each set of positioning posts B215 includes at least two positioning posts B215 for coarse positioning during assembly of the housing 20 with the corresponding structural component. The positioning posts B215 are made of plastic. Simultaneously, at least one set of nuts 216 is also distributed on the F end of the housing 20. Each set of nuts 216 includes at least three nuts 216, which are enclosed inside the housing 20 for further assembly of the housing 20 with the corresponding structural component. The nuts 216 are made of copper. Connecting cups 217 are also evenly distributed on the outer wall of the housing 20. The connecting cups 217 have metal bushings 2171 inside for supporting the bolts used during assembly with the corresponding structural component, preventing the bolts from squeezing the connecting cups 217 and causing damage.

[0038] Here, the motor stator 10 is provided with a terminal block 11; a receiving cavity 21 is formed on the E end of the housing 20, and the terminal block 11 passes through the bottom of the receiving cavity 21 formed on the E end of the housing 20. The receiving cavity 21 is provided with at least one set of rubber grooves 211, and the terminal block 11 passes through the rubber grooves 211 to the bottom of the receiving cavity 21 formed on the E end of the housing 20. A set of protrusions 2111 are symmetrically distributed on the opening of the grooves 211. The receiving cavity 21 formed on the E end of the housing 20 is also uniformly... At least one set of positioning posts A212 are distributed. An assembly groove 213 is also provided inside the receiving cavity 21 formed on the E end of the housing 20. The assembly groove 213 is square or waist-shaped. A receiving cavity 21 is also formed on the F end of the housing 20. At least one set of positioning posts B215 are distributed inside the receiving cavity 21. Connecting cups 217 are also evenly distributed on the outer side wall of the housing 20. This realizes that the housing 20 of the electronic oil pump avoids the PCBA from being deformed and damaged during the assembly of the PCBA, thereby reducing production costs.

[0039] To facilitate understanding, the working principle of this application is further described as follows: The integrated housing 20 for the electronic oil pump and the motor stator 10 are integrally injection molded together. This integral injection molding process reduces the overall weight of the electronic oil pump, simplifies the assembly process, and reduces the amount of O-rings used during assembly, thus lowering production costs. Simultaneously, a set of protrusions 2111 are symmetrically distributed on the groove opening of the glue groove 211 to prevent inconsistent pressing between the PCBA and the terminal block 11 during the PCBA press-fitting process into the housing 20 of the electronic oil pump, which could lead to PCBA deformation or even damage, thereby reducing production costs. Furthermore, strip-shaped protrusions 2121 are evenly distributed on the side wall of the column body 2123 of the positioning post A212. These protrusions 2121 are interference-fitted with the connecting holes on the PCBA, improving the stability of the PCBA assembly into the housing 20 and thus enhancing the reliability of the electronic oil pump during use.

[0040] Although this application has been described and illustrated with reference to specific embodiments thereof, such description and illustration are not limiting of this application. It will be readily understood by those skilled in the art that various changes can be made and equivalent elements can be substituted within embodiments without departing from the true spirit and scope of this application as defined by the appended claims. Illustrations may not be drawn to scale. Differences may exist between the technical representation in this application and actual implementation due to variables in the manufacturing process, etc. Other embodiments of this application may exist that are not specifically described. The description and illustrations should be considered illustrative rather than restrictive. Modifications can be made to adapt particular circumstances, materials, composition, methods, or processes to the objectives, spirit, and scope of this application. All such modifications fall within the scope of the appended claims. While the methods disclosed herein have been described with reference to specific operations performed in a particular order, it should be understood that these operations can be combined, subdivided, or reordered to form equivalent methods without departing from the teachings of this application. Therefore, unless specifically indicated herein, the order and grouping of operations do not limit this application.

Claims

1. An integral housing for an electronic oil pump, characterized in that, The system includes a motor stator (10) with terminals (11) on it; a housing (20) covering the motor stator (10); a cavity (21) formed at the E end of the housing (20); the terminals (11) passing through the bottom of the cavity (21) formed at the E end of the housing (20); at least one set of adhesive grooves (211) inside the cavity (21); the terminals (11) passing through the adhesive grooves (211) passing through the bottom of the cavity (21) formed at the E end of the housing (20); and the groove opening of the adhesive grooves (211). A set of protrusions (2111) are symmetrically distributed on the upper part. At least one set of positioning posts A (212) are evenly distributed inside the cavity (21) formed on the E end of the housing (20). An assembly groove (213) is also provided inside the cavity (21) formed on the E end of the housing (20). The shape of the assembly groove (213) is square or waist-shaped. The cavity (21) is also formed on the F end of the housing (20). At least one set of positioning posts B (215) are distributed inside the cavity (21). Connecting cups (217) are evenly distributed on the outer side wall of the housing (20).

2. The integrated housing for an electronic oil pump according to claim 1, characterized in that, The terminal (11) is a fisheye terminal.

3. The integrated housing for an electronic oil pump according to claim 1, characterized in that, A set of the positioning posts A (212) includes at least three positioning posts A (212).

4. The integrated housing for an electronic oil pump according to claim 3, characterized in that, The sidewall of the positioning post A (212) has strip-shaped protrusions (2121) evenly distributed.

5. The integrated housing for an electronic oil pump according to claim 4, characterized in that, Each of the strip-shaped protrusions (2121) extends along the axial direction of the positioning post A (212).

6. The integrated housing for an electronic oil pump according to claim 1, characterized in that, A welding ring (214) is also provided on the end of the housing (20) at end E.

7. The integrated housing for an electronic oil pump according to claim 1, characterized in that, A set of the positioning posts B (215) includes at least two positioning posts B (215).

8. The integrated housing for an electronic oil pump according to claim 1, characterized in that, At least one set of nuts (216) are distributed on the F end of the housing (20), and the nuts (216) are covered inside the housing (20).

9. The integrated housing for an electronic oil pump according to claim 8, characterized in that, A set of said nuts (216) includes at least three said nuts (216).

10. The integrated housing for an electronic oil pump according to claim 1, characterized in that, The connecting cup (217) has a metal bushing (2171) inside.

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