Motor oil pump controller structure without bolt connection

Abstract

The utility model relates to a motor oil pump structure. A motor oil pump controller structure without bolted connection comprises a motor body, a controller cover is arranged above the motor body, a pump cover is connected to the lower portion of the motor body, a PCBA board, a stator assembly and a rotor assembly are installed in the motor body, the motor body is welded to the controller cover, and the motor body is also welded to the pump cover below the motor body. The PCBA board is installed in the motor body through hot riveting on the fixing columns. The motor oil pump controller structure free of bolt connection is easy to install, low in cost, free of a sealing ring and light in weight. The motor oil pump controller solves the technical problems that in the prior art, all parts of a motor oil pump controller need to be connected through bolts, cost is high, and the weight is large.

Description

TECHNICAL FIELD

[0001] The utility model relates to a motor oil pump structure, especially a motor oil pump controller structure without bolt connection. BACKGROUND

[0002] Generally, the traditional motor oil pump controller assembly design contains a controller cover, a motor body, the controller cover and the motor body form a containing cavity, a PCBA board is installed in the containing cavity, a motor stator assembly and a rotor assembly are also installed in the containing cavity, and a connector is installed on the controller cover, the PIN pin of the connector is connected to the PCBA board. A pump cover is connected below the motor body.

[0003] In the structure of the existing motor oil pump controller assembly, for a high-power motor oil pump controller, in order to improve heat dissipation, the controller cover is generally implemented by using a metal structure that is more conducive to heat dissipation, and the connector and the controller cover are formed in a split structure. The PCBA board is fixed, the controller cover and the motor body, the pump cover and the motor body, and the connector and the controller cover are connected by bolts. This traditional structure connected by bolts not only increases many bolts on the product and increases the process of tightening the bolts on the production line, but also increases the design of the threaded hole on the product and considers the space for tightening the bolts. At present, many customers in the automotive industry have strict requirements on the structure space and weight of the product, so according to the development trend of the automotive industry in the future, the motor oil pump product is designed to be bolt-free or have fewer bolts. SUMMARY

[0004] The utility model provides a simple installation, low in cost, need not sealing washer, light weight motor oil pump controller structure without bolt connection, solve the technical problem that each component of motor oil pump controller needs to adopt bolt connection in prior art, high cost, heavy weight.

[0005] The above technical problems of the utility model are solved by the following technical scheme: a motor oil pump controller structure without bolt connection, comprising a motor body, a controller cover is arranged above the motor body, a pump cover is connected below the motor body, a PCBA board, a stator assembly and a rotor assembly are installed in the motor body, the motor body and the controller cover are welded, the motor body and the pump cover below are also welded and connected, and the PCBA board is installed in the motor body by hot riveting on the fixing column. The controller cover and the motor body, and the motor body and the pump cover are all fixed by welding, which not only saves the process of tightening the bolts on the production line, but also saves the bolts, reduces the cost, reduces the weight of the assembly, and can also reduce the occupied space of the assembly to achieve the development trend of light weight and miniaturization of the whole vehicle. Meanwhile, the laser welding of the motor body and the controller cover and the laser welding of the motor body and the pump cover also play a sealing role, so that two sealing washers can be saved, and the cost is reduced.

[0006] As preferred, the stator assembly comprises a stator shell, a fixing column is integrally formed on the stator shell, a through hole is arranged on the PCBA board, and the PCBA board is fixed by hot riveting.

[0007] As preferred, the fixing column is three, and is uniformly distributed on the stator shell. The uniformly distributed fixing column makes the connection and fixation more uniform and facilitates fixation.

[0008] As preferred, the connector mounting seat is arranged on the controller cover, the connector is mounted in the connector mounting seat, a through hole is arranged on the connector, a corresponding pin shaft hole is arranged on the controller cover, and the connector and the controller are connected by being press-fitted in the pin shaft hole and the through hole through the pin shaft. The cylindrical pin is used instead of the bolt, and the controller cover does not need to be threaded, thereby reducing the processing cost and saving the space for bolt installation.

[0009] As preferred, the connector mounting seat is an annular seat body, corresponding pin shaft holes are arranged on the front and rear end faces of the seat body, the connector comprises a base and a main body, the base of the connector is located in the mounting seat, and a through hole is arranged on each of the outer side portions of the connector base. The mounting seat first pre-installs and fixes the connector, and then fixes the connector through the interference connecting pin shaft. The pin shaft hole is arranged on the outside of the connector main body, and the influence on the pins in the connector can be effectively prevented.

[0010] As preferred, an inclined slope is arranged on the plane where the motor body and the controller cover meet, and the inclined slope on the motor body and the inclined slope on the controller cover form a V-shaped welding groove. The structure is simple, and the welding effect is good.

[0011] As preferred, an inclined slope is arranged on the plane where the motor body and the pump cover meet, and the inclined slope on the motor body and the inclined slope on the pump cover form a V-shaped welding groove.

[0012] As preferred, the controller cover is formed of metal material, and the connector connected to the controller cover is formed of plastic material. Heat dissipation is facilitated, and the cost is low.

[0013] Therefore, the motor oil pump controller structure without bolt connection has the following advantages:

[0014] 1) The controller cover and the motor body are laser welded, and the pump cover and the motor body are laser welded, thereby saving the bolts, reducing the cost, reducing the total weight and total space of the assembly, and the laser welding can ensure sealing, so that the design also saves the sealing ring, and is very consistent with the development direction of light weight, miniaturization and low cost of the automobile;

[0015] 2) PCBA uses hot riveting, which saves bolts, reduces costs, and reduces the weight and space of the assembly;

[0016] 3) The connector and the controller cover are connected by pin interference press fitting, which uses a cylindrical pin instead of a bolt, and the controller cover does not need to be threaded, reducing processing costs and saving space for bolt installation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a perspective view of a boltless motor oil pump controller structure.

[0018] Figure 2 is Figure 1 a sectional view.

[0019] Figure 3 is Figure 1 a perspective view of the connector of

[0020] Figure 4 is Figure 1 a perspective view of the controller cover in

[0021] Figure 5 is Figure 1 a perspective view of the PCBA board and the stator shell connection in DETAILED DESCRIPTION

[0022] The technical scheme of the utility model will be further specifically described below through examples and in combination with the drawings.

[0023] Example:

[0024] As shown in Figure 1 and 2 , a boltless motor oil pump controller structure includes a motor body 1, a controller cover 2 is installed above the motor body 1, and a pump cover 3 is installed below the motor body 1. A PCBA board 7, a stator assembly, and a rotor assembly are installed in the cavity formed by the motor body 1 and the controller cover 2. The controller cover 2 is formed of metal material, the connector 4 is installed on the controller cover 2, and the connector 4 is formed of plastic material.

[0025] An inclined slope is provided on the interface plane between the motor body 1 and the controller cover 2, and the inclined slope on the motor body 1 and the inclined slope on the controller cover 2 form a controller cover V-shaped welding groove 9. The motor body 1 and the controller cover 2 are fixedly connected by laser welding.

[0026] An inclined slope is provided on the interface plane between the motor body 1 and the pump cover 3, and the inclined slope on the motor body 1 and the inclined slope on the pump cover 3 form a pump cover V-shaped welding groove 15. The motor body 1 and the pump cover 3 are fixedly connected by laser welding.

[0027] As shown in Figure 3and 4 As shown in the figure, the controller cover 2 comprises a ring-shaped connector mounting seat 14, which is perpendicular to the main body plane of the controller cover, and the shape of the connector mounting seat 14 is the same as the cross-sectional shape of the connector. Pin shaft holes 13 are formed on the front and rear end faces of the connector mounting seat 14. The connector 4 comprises a base 11 and a main body 10, the connector base 11 is located in the connector mounting seat 14, and a through hole 12 is formed on each end of the base 11, which is located outside the main body 10 of the connector, so as not to affect the arrangement of the PIN. The through hole 12 and the pin shaft hole 13 are coaxially arranged and penetrate each other, and the pin shaft 5 is in interference fit with the through hole 12 and the pin shaft hole 14, so as to connect and fix the connector 4 and the controller cover 2 through the pin shaft 5.

[0028] As shown in the figure, the stator assembly comprises a stator shell 8, which is uniformly provided with three fixed columns 6 integrally formed thereon, and a PCBA board 7 is provided with a through hole, and the PCBA board 7 is fixed on the fixed column 6 of the stator shell by hot riveting. Thus, the fixation of the PCBA board 7 is realized. Figure 5

[0029] The specific embodiments described herein are merely illustrative of the present application. Various modifications or supplements or similar ways of substitution can be made to the specific embodiments described herein by those skilled in the art without departing from the spirit of the present application or exceeding the scope defined by the appended claims.​

Claims

1. A boltless motor oil pump controller structure, comprising a motor body, a controller cover arranged above the motor body, a pump cover connected below the motor body, a PCBA board, a stator assembly and a rotor assembly installed in the motor body, characterized in that: The motor body is welded with the controller cover, the motor body is also welded with the lower pump cover, and the PCBA board is installed in the motor body by hot riveting on the fixing column.

2. A boltless motor pump controller structure as claimed in claim 1, wherein: The stator assembly comprises a stator shell, the fixing column is integrally formed on the stator shell, the PCBA board is provided with a through hole, and the PCBA board is fixed by hot riveting.

3. A boltless motor pump controller structure as claimed in claim 2, wherein: The fixing column is three, and is uniformly distributed on the stator shell.

4. A boltless motor pump controller structure as claimed in claim 1 or 2 or 3, wherein: The connector mounting seat is annular, corresponding pin shaft holes are formed on the front and rear end faces of the seat body, the connector comprises a base and a main body, and a through hole is formed on each of the outer side portions of the base of the connector.

5. A boltless motor pump controller structure as claimed in claim 4, wherein: The interface between the motor body and the controller cover is provided with an inclined slope, and the inclined slope on the motor body and the inclined slope on the controller cover form a V-shaped welding groove.

6. A boltless motor oil pump controller structure as claimed in claim 1 or 2 or 3 wherein: The interface between the motor body and the pump cover is provided with an inclined slope, and the inclined slope on the motor body and the inclined slope on the pump cover form a V-shaped welding groove.

7. A boltless motor oil pump controller structure as claimed in claim 1 or 2 or 3 wherein: The controller cover is formed of metal material, and the connector connected to the controller cover is formed of plastic material.

8. A boltless motor oil pump controller structure as claimed in claim 1 or 2 or 3 wherein: ​

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