Connection terminal of electronic oil pump and electronic oil pump

Abstract

The utility model discloses a connecting terminal of an electronic oil pump and the electronic oil pump. The connecting terminal comprises a plugging end and a connecting end. The plugging end is used for being connected with a terminal plugging part in the electronic oil pump, a slit structure is arranged in the middle of one end, connected with the terminal plugging part, of the plugging end, and the slit structure is used for puncturing a motor enameled wire in the terminal plugging part. The connecting end is fixedly connected to the side, away from the slit structure, of the inserting end and protrudes out of the inserting end, and a connecting hole is formed in the end, away from the inserting end, of the connecting end. A smooth surface is arranged at the end, close to the connecting end, of the inserting end, and the end of the connecting end is fixedly arranged on the smooth surface. When the connecting terminal is installed on the electronic oil pump, the connecting terminal has the advantages of being good in sealing effect, high in quality stability and simple in process implementation, and a controller and a motor in the electronic oil pump can be disassembled in a lossless mode.

Description

Technical Field

[0001] The utility model relates to the field of electronic oil pumps, in particular to a connecting terminal of an electronic oil pump and an electronic oil pump. Background Art

[0002] An automotive electronic oil pump integrates a controller, motor, and oil pump. Its internal chambers are divided into three compartments: the controller chamber, the motor chamber, and the oil pump chamber. Generally, oil cannot enter the motor chamber from the oil pump chamber, but the motor and controller chambers can be connected. If oil enters the motor chamber from the oil pump chamber to cool the motor, a seal must be ensured between the motor and controller chambers to prevent oil from entering the control chamber.

[0003] The seal between the motor cavity and the controller cavity includes radial seal and terminal seal. Figure 1 As shown, radial seals are generally sealed with sealing rings, see Figure 1 and Figure 2 In the figure, 1 is the sealing ring, 2 is the control circuit board, 3 is the controller cavity, 4 is the sealing plate, 5 is the motor cavity, and 6 is the motor three-phase terminal. The terminal sealing generally adopts the method of "glue filling" or "injection molding + glue filling". Figure 1 As shown, "glue potting" sealing means that the three-phase terminal 6 of the motor passes through the sealing plate 4, and silicone or epoxy glue is used to seal the terminal hole. This method has high requirements for glue performance and glue potting process, poor quality stability, and the glue easily enters the motor cavity 5. The sealing plate 4 cannot be separated from the motor during disassembly. Figure 2 As shown, the "injection molding + glue potting" method involves integrally molding the motor's three-phase terminals 6 with the sealing plate 4, while simultaneously applying glue around the terminals to enhance sealing performance. This method improves sealing performance but increases process complexity. Furthermore, the motor's three-phase terminals 6 are blindly installed when the sealing plate 4 is installed, making assembly more difficult.

[0004] Therefore, the terminal sealing process of the motor cavity and the controller cavity in the prior art has the problems of high assembly difficulty and complex sealing process. Utility Model Content

[0005] The purpose of the utility model is to solve the problems of high assembly difficulty and complex sealing process in the terminal sealing process of the motor cavity and the controller cavity in the prior art.

[0006] In order to solve the above-mentioned technical problems, the embodiment of the present utility model discloses a connecting terminal for an electronic oil pump, which includes a plug-in end and a connecting end. The plug-in end is used to connect to the terminal plug-in portion in the electronic oil pump, and a slit structure is provided in the middle of one end of the plug-in end connected to the terminal plug-in portion, and the slit structure is used to pierce the motor enameled wire in the terminal plug-in portion. The connecting end is fixedly connected to the side of the plug-in end away from the slit structure and protrudes from the plug-in end, and a connecting hole is provided at the end of the connecting end away from the plug-in end. The end of the plug-in end close to the connecting end is provided with a smooth surface, and the end of the connecting end is fixedly provided on the smooth surface.

[0007] With this technical solution, when the plug-in terminal is connected to the terminal connector of the electronic oil pump, the slit structure pierces the motor enameled wire within the terminal connector, thereby electrically connecting the plug-in terminal to the motor enameled wire and extending the connector toward the end away from the smooth surface. Furthermore, because the end of the plug-in terminal near the connector is provided with a smooth surface, when the terminal is plugged into the terminal connector, the smooth surface provides a mounting surface for a sealing ring. A single sealing ring is then provided between the connector and the sealing plate for a sealed connection, eliminating the need for complex processes such as potting and injection molding.

[0008] Specifically, when the connecting terminal is in use, the plug-in end is electrically connected to the motor enameled wire in the motor cavity or the stator cavity, and the connecting end passes through the sealing plate and is connected to the control circuit board in the controller cavity. At this time, the connecting end and the perforation on the sealing plate can be sealed by a sealing ring, a sealing gasket, etc., and the smooth surface provides an installation plane for support for the sealing ring or the sealing gasket, and makes the sealing ring and the perforation and the smooth surface have an interference fit, thereby ensuring the sealing of the two chambers. It has the advantages of good sealing effect, high quality stability, and simple process implementation, and the controller and motor can be disassembled non-destructively.

[0009] The embodiment of the present utility model further discloses a connecting terminal of an electronic oil pump, wherein the smooth surface is formed such that at least the middle portion is a planar portion, and the end portion of the connecting terminal is fixedly arranged at the geometric center position of the planar portion.

[0010] With the above technical solution, the middle of the smooth surface is a flat part, thereby providing a mounting support position for the sealing ring or gasket, and the connecting end is arranged at the geometric center position of the flat part to facilitate the installation of the sealing ring.

[0011] The embodiment of the utility model further discloses a connecting terminal of an electronic oil pump, wherein the plug end is a hollow ring structure, the connecting end is a rod structure, and the connecting end and the plug end are integrally formed.

[0012] An embodiment of the present utility model also discloses a connecting terminal for an electronic oil pump, wherein the slit structure includes two narrow slots formed on the side of the plug-in end away from the connecting end, wherein the extension direction of each narrow slot is the same as the extension direction of the connecting end, and a guide groove is further provided on the side of the narrow slot away from the connecting end, wherein the width of the narrow slot is smaller than the diameter of the motor enameled wire.

[0013] With the above technical solution, the width of the narrow slot is smaller than the diameter of the motor enameled wire. When the plug end is inserted into the terminal plug part, the narrow slot can easily pierce the enameled wire, and the guide groove can also play a guiding role.

[0014] The embodiment of the present invention further discloses a connecting terminal of an electronic oil pump, wherein the connecting hole is an elliptical fisheye structure. With this design, the fisheye structure can be conveniently used to pass through the circuit board for connection.

[0015] The embodiment of the present utility model further discloses an electronic oil pump, comprising the connection terminal of any one of the electronic oil pumps described above, and further comprising:

[0016] Motor housing.

[0017] The motor stator is located in the motor housing.

[0018] The terminal plug-in portion is located at one end of the motor stator, and the terminal plug-in portion contains the motor enameled wire. The plug-in end of the connecting terminal is plugged into the terminal plug-in portion, and the slit structure pierces the motor enameled wire and is electrically connected to the motor enameled wire. In addition, the connecting terminal is extended along the axial direction of the motor stator.

[0019] The control circuit board is located on a side of the terminal plug-in portion away from the motor stator. The end of the connecting terminal extends through the control circuit board, and the periphery of the connecting hole of the connecting terminal is electrically connected to the control circuit board.

[0020] The sealing plate is located on a side of the control circuit board close to the motor stator. The sealing plate is extended along the radial direction of the motor stator and is in sealing contact with the motor stator and the motor housing respectively.

[0021] By adopting the above technical solution, the plug-in end of the connecting terminal is inserted into the terminal plug-in part and electrically connected to the enameled wire. The connecting hole of the connecting end passes through the control circuit board and is electrically connected. The sealing plate seals the connecting terminal to ensure the normal operation of the electronic oil pump.

[0022] The present invention also discloses an electronic oil pump in which a sealing plate is located between the motor stator and the control circuit board in the axial direction of the motor stator. The sealing plate divides the space within the motor housing into a stator cavity and a controller cavity, which are sealed from each other. A terminal through-hole is provided at the location where the sealing plate mates with the connection terminal, and the connection end extends through the terminal through-hole. Furthermore, a terminal sealing ring is provided between the sealing plate and the smooth surface, with one side of the terminal sealing ring sealingly abutting the sealing plate and the other side of the terminal sealing ring sealingly abutting the smooth surface.

[0023] Furthermore, the sealing plate is pressed toward one side of the terminal sealing ring and compresses the terminal sealing ring to cause deformation, and the deformation pressure between the terminal sealing ring and the smooth surface and the sealing plate is greater than the oil pressure in the stator cavity.

[0024] By adopting the above technical solution, the sealing plate separates the space inside the motor housing into a stator cavity and a controller cavity that are sealed from each other. A terminal sealing ring is also provided between the sealing plate and the smooth surface, so that the stator cavity and the controller cavity are completely sealed. There is no need to pour glue or injection mold between the connecting terminal and the sealing plate as in traditional processes. Only the terminal sealing ring is needed for sealing. The sealing structure is simple and the sealing effect is good. It can effectively prevent oil from entering the controller cavity, improve the sealing performance, reduce the difficulty of assembly and reduce the complexity of the process. No parts will be damaged during disassembly, and repeated installation and disassembly can be achieved.

[0025] The present invention also discloses an electronic oil pump. A controller cover is provided on the side of the control circuit board facing away from the motor stator in the axial direction. The side of the controller cover, located axially adjacent to the motor housing and the sealing plate, seals against the motor housing and the sealing plate, respectively. A radial sealing ring is also provided at the abutment areas between the sealing plate, the motor housing, and the controller cover.

[0026] Specifically, the sealing plate and the motor housing abut each other, and the ends near the controller cover have symmetrically arranged chamfered structures, with the radial sealing ring located within the chamfered structures. The radial sealing ring is sealed and connected to the sealing plate, the motor housing, and the controller cover respectively, with an interference fit.

[0027] By adopting the above technical solution, a radial sealing ring is arranged at the abutting parts of the sealing plate, the motor housing and the controller cover, and a chamfered structure is arranged at the end where the sealing plate and the motor housing are close to each other. The radial sealing ring is arranged in the chamfered structure, which has the advantages of good sealing effect, high quality stability and simple process implementation, and the controller and motor can be disassembled without damage.

[0028] The beneficial effects of the utility model are:

[0029] The utility model discloses a connecting terminal of an electronic oil pump and an electronic oil pump. The connecting terminal of the electronic oil pump includes a plug-in end and a connecting end. The plug-in end is used to connect to the terminal plug-in portion in the electronic oil pump, and the slit structure of the plug-in end pierces the motor enameled wire in the terminal plug-in portion to achieve electrical connection. The end of the connecting end extends through the control circuit board, and the outer periphery of the connecting hole of the connecting end is electrically connected to the control circuit board. The sealing plate is located between the motor stator and the control circuit board, and divides the space in the motor housing into a stator cavity and a controller cavity that are sealed from each other. A terminal sealing ring is also provided between the sealing plate and the smooth surface. The present application seals the connecting terminal and the sealing plate by providing a terminal sealing ring. Unlike traditional processes, there is no need to perform glue filling or injection molding to seal between the connecting terminal and the sealing plate. The sealing structure is simple and the sealing effect is good. It can effectively prevent oil from entering the controller cavity, improve the sealing performance, reduce the difficulty of assembly, and reduce the complexity of the process. No parts will be damaged during the disassembly process, and repeated installation and disassembly can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is the first sealing method for terminal sealing in the prior art;

[0031] Figure 2 This is the second sealing method for terminal sealing in the prior art;

[0032] Figure 3 A schematic diagram of the structure of the connection terminals of the electronic oil pump provided in an embodiment of the present utility model;

[0033] Figure 4 This is a cross-sectional view of the connecting terminal provided by an embodiment of the present utility model when installed on an electronic oil pump for use.

[0034] Description of reference numerals:

[0035] Prior art drawing numbers:

[0036] 1. Sealing ring; 2. Control circuit board; 3. Controller cavity; 4. Sealing plate; 5. Motor cavity; 6. Motor three-phase terminals.

[0037] Figure numbers of this application:

[0038] 100. Connecting terminals;

[0039] 110, plug end;

[0040] 111. Slit structure; 112. Guide groove;

[0041] 120, connection end;

[0042] 121, connecting hole;

[0043] 130, smooth surface;

[0044] 200, motor housing;

[0045] 210, stator cavity; 220, controller cavity;

[0046] 300, motor stator; 400, terminal plug-in portion; 500, control circuit board;

[0047] 600, sealing plate; 700, terminal sealing ring; 800, controller cover; 900, radial sealing ring;

[0048] A. Axial direction; B. Radial direction. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0050] Example 1

[0051] This embodiment discloses a connection terminal 100 for an electronic oil pump. Figure 3 The connecting terminal 100 includes a plug end 110 and a connecting end 120. The plug end 110 is used to connect to the terminal plug part 400 in the electronic oil pump. A slit structure 111 is provided in the middle of the end of the plug end 110 connected to the terminal plug part 400. The slit structure 111 is used to pierce the motor enameled wire in the terminal plug part 400. The connecting end 120 is fixedly connected to the side of the plug end 110 away from the slit structure 111 and protrudes from the plug end 110. A connecting hole 121 is provided at the end of the connecting end 120 away from the plug end 110. A smooth surface 130 is provided at the end of the plug end 110 close to the connecting end 120, and the end of the connecting end 120 is fixedly provided on the smooth surface 130.

[0052] Specifically, in this embodiment, the connecting hole 121 of the plug end 110 and the connecting end 120 can be configured to be the same model or type as needed, thereby accommodating the same model of electronic oil pumps to improve production efficiency. Different sizes or models can also be configured as needed to accommodate different electronic oil pumps or terminal plug portions 400. Furthermore, the connecting terminal 100 is made of metal or conductive material. The end of the connecting end 120 can be fixedly connected by welding, integral molding, or other methods.

[0053] With this structural design, when the plug end 110 is connected to the terminal plug portion 400 in the electronic oil pump, the slit structure 111 pierces the motor enameled wire within the terminal plug portion 400, thereby electrically connecting the plug end 110 to the motor enameled wire and extending the connecting end 120 toward the end away from the smooth surface 130. Furthermore, because the smooth surface 130 is provided at the end of the plug end 110 near the connecting end 120, when the terminal is plugged into the terminal plug portion 400, the smooth surface 130 provides a mounting surface for a sealing ring. A single sealing ring is then required between the connecting end 120 and the sealing plate 600 for a sealed connection, eliminating the need for complex processes such as potting and injection molding.

[0054] Specifically, when the connecting terminal 100 is in use, the plug-in end 110 is electrically connected to the motor enameled wire in the motor cavity or the stator cavity 210, and the connecting end 120 passes through the sealing plate 600 and is connected to the control circuit board 500 in the controller cavity 220. At this time, the connecting end 120 and the perforation on the sealing plate 600 can be sealed and connected by a sealing ring, a sealing gasket, etc., and the smooth surface 130 provides an installation plane for the sealing ring or the sealing gasket for support, and makes the sealing ring and the perforation and the smooth surface 130 have an interference fit, thereby ensuring the sealing of the two chambers. It has the advantages of good sealing effect, high quality stability, and simple process implementation, and the controller and the motor can be disassembled without damage.

[0055] This embodiment also discloses a connection terminal 100 for an electronic oil pump. Figure 3 The smooth surface 130 is formed with at least a planar portion in the middle, and the end of the connecting end 120 is fixedly disposed at the geometric center of the planar portion. In this embodiment, the center of the smooth surface 130 is a planar portion, thereby providing a mounting support for the sealing ring or gasket. The connection end 120 is disposed at the geometric center of the planar portion, facilitating the installation of the sealing ring.

[0056] In another embodiment, in order to improve the sealing performance, a sealing ring mounting groove can be provided in the middle part of the smooth surface 130, and the sealing ring or sealing gasket can be nested in the sealing ring mounting groove at the connection part between the sealing mounting connection end 120 and the sealing plate 600, thereby improving the sealing performance.

[0057] Please continue to see Figure 3 The plug end 110 is a hollow ring-shaped structure, and the connecting end 120 is a rod-shaped structure. The connecting end 120 and the plug end 110 are integrally formed. The slit structure 111 includes two slots formed on the side of the plug end 110 away from the connecting end 120. Each slot extends in the same direction as the connecting end 120. A guide groove 112 is also provided on the side of the slot away from the connecting end 120. The width of the slot is smaller than the diameter of the motor enameled wire.

[0058] Specifically, the width of the slot can be 0.5 mm, 1 mm, or the like, smaller than the diameter of the motor enameled wire. For example, if the diameter of the motor enameled wire is 3 mm, the width of the slot can be 2 mm, 2.5 mm, 2.8 mm, or the like. This embodiment does not impose any specific limitations on this. Providing two slots allows the enameled wire to be pierced from both sides for connection. The width of the slot is smaller than the diameter of the motor enameled wire. When the plug end 110 is inserted into the terminal plug portion 400, the slot can easily pierce the enameled wire, and the guide groove 112 can also serve as a guide.

[0059] See further Figure 3 The connection hole 121 is an elliptical fisheye structure. With this design, the fisheye structure can be easily used to pass through the circuit board for connection, and the connection between the elliptical fisheye structure and the control circuit board 500 is more stable and not prone to shaking.

[0060] Example 2

[0061] This embodiment also discloses an electronic oil pump. Figure 4 , including the connecting terminal 100 of the electronic oil pump of any one of the embodiments 1, further comprising:

[0062] Motor housing 200 .

[0063] The motor stator 300 is located in the motor housing 200 .

[0064] The terminal plug-in portion 400 is located at one end of the motor stator 300. The terminal plug-in portion 400 contains the motor enameled wire. The plug-in end 110 of the connecting terminal 100 is plugged into the terminal plug-in portion 400, and the slit structure 111 pierces the motor enameled wire and is electrically connected to the motor enameled wire. In addition, the connecting terminal 100 is extended along the axial direction of the motor stator 300.

[0065] The control circuit board 500 is located on a side of the terminal plug-in portion 400 away from the motor stator 300 . The end of the connection end 120 extends through the control circuit board 500 , and the outer periphery of the connection hole 121 of the connection end 120 is electrically connected to the control circuit board 500 .

[0066] The sealing plate 600 is located on a side of the control circuit board 500 close to the motor stator 300 . The sealing plate 600 extends along the radial direction of the motor stator 300 and is in sealing contact with the motor stator 300 and the motor housing 200 .

[0067] In the axial direction of the motor stator 300, the sealing plate 600 is located between the motor stator 300 and the control circuit board 500. The sealing plate 600 divides the space in the motor housing 200 into a stator cavity 210 and a controller cavity 220 that are sealed from each other. A terminal through-hole is also provided at the position where the sealing plate 600 and the connecting terminal 100 are adapted, and the connecting end 120 passes through the terminal through-hole. In addition, a terminal sealing ring 700 is provided between the sealing plate 600 and the smooth surface 130. One side of the terminal sealing ring 700 is in sealing contact with the sealing plate 600, and the other side is in sealing contact with the smooth surface 130. The axial direction is as follows Figure 4 The A direction is shown in the middle, and the radial direction is as Figure 4 As shown in the direction B.

[0068] It should be noted that, in an electronic oil pump, the number of connection terminals 100 is not limited to one, but may be two, three or even more, and the connection terminals 100 may be common IDC terminals, PCB terminals, etc., which are not specifically limited in this embodiment.

[0069] Specifically, the sealing plate 600 is used to separate the space inside the motor housing 200 into a stator cavity 210 and a controller cavity 220 that are sealed from each other, but the connecting end 120 of the connecting terminal 100 needs to pass through the sealing plate 600. After passing through the sealing plate 600, a terminal through-hole will be generated on the sealing plate 600. Therefore, a terminal sealing ring 700 is provided at the terminal through-hole to seal the terminal through-hole to prevent the oil in the stator cavity 210 from entering the controller cavity 220 through the terminal through-hole.

[0070] More specifically, the sealing plate 600 is pressed toward one side of the terminal sealing ring 700 and compresses the terminal sealing ring 700 to cause deformation, and the deformation pressure between the terminal sealing ring 700 and the smooth surface 130 and the sealing plate 600 is greater than the oil pressure in the stator cavity 210.

[0071] In this embodiment, the plug-in end 110 of the connecting terminal 100 is inserted into the terminal plug-in portion 400 and electrically connected to the enameled wire. The connecting hole 121 of the connecting end 120 passes through the control circuit board 500 and is electrically connected. The sealing plate 600 seals the connecting terminal 100 to ensure the normal operation of the electronic oil pump. The sealing plate 600 divides the space in the motor housing 200 into a stator cavity 210 and a controller cavity 220 that are sealed from each other. A terminal sealing ring 700 is also provided between the sealing plate 600 and the smooth surface 130. Therefore, the stator cavity 210 and the controller cavity 220 are completely sealed. There is no need to perform glue pouring or injection molding between the connecting terminal 100 and the sealing plate 600 as in traditional processes. Only the terminal sealing ring 700 is required for sealing. In addition, the sealing structure is simple and the sealing effect is good. It can well prevent oil from entering the controller cavity 220 from the stator cavity 210, thereby improving the sealing performance, reducing the difficulty of assembly and reducing the complexity of the process. No parts will be damaged during the disassembly process, and repeated installation and disassembly can be achieved.

[0072] This embodiment also discloses an electronic oil pump. Figure 4 A controller cover 800 is also provided on the axial side of the control circuit board 500, away from the motor stator 300. Axially, the side of the controller cover 800 that is closer to the motor housing 200 and the sealing plate 600 is in sealing contact with the motor housing 200 and the sealing plate 600, respectively. A radial sealing ring 900 is also provided at the contact points between the sealing plate 600, the motor housing 200, and the controller cover 800.

[0073] Specifically, the sealing plate 600 and the motor housing 200 abut each other, and their ends near the controller cover 800 have symmetrically arranged chamfered structures, within which the radial sealing ring 900 is located. The radial sealing ring 900 is sealed and connected to the sealing plate 600, the motor housing 200, and the controller cover 800, respectively, with an interference fit.

[0074] By adopting the above technical solution, a radial sealing ring 900 is provided at the abutting parts of the sealing plate 600, the motor housing 200 and the controller cover 800, and a chamfered structure is provided at the end where the sealing plate 600 and the motor housing 200 are close to each other, and the radial sealing ring 900 is provided in the chamfered structure, which has the advantages of good sealing effect, high quality stability and simple process implementation, and the controller and the motor can be disassembled without damage.

[0075] In summary, the present invention discloses a connection terminal 100 for an electronic oil pump and an electronic oil pump. The connection terminal 100 for the electronic oil pump includes a plug end 110 and a connection end 120. The plug end 110 is used to connect to the terminal plug portion 400 in the electronic oil pump, and the slit structure 111 of the plug end 110 pierces the motor enameled wire in the terminal plug portion 400 to achieve electrical connection. The end of the connection end 120 extends through the control circuit board 500, and the outer periphery of the connection hole 121 of the connection end 120 is electrically connected to the control circuit board 500. The sealing plate 600 is located between the motor stator 300 and the control circuit board 500, and divides the space within the motor housing 200 into a stator cavity 210 and a controller cavity 220, which are sealed from each other. A terminal sealing ring 700 is also provided between the sealing plate 600 and the smooth surface 130. The present application seals the connecting terminal 100 and the sealing plate 600 by providing the terminal sealing ring 700. There is no need to perform glue filling or injection molding between the connecting terminal 100 and the sealing plate 600 as in traditional processes. The sealing structure is simple and the sealing effect is good. It can effectively prevent oil from entering the controller cavity 220, improve the sealing performance, reduce the difficulty of assembly, and reduce the complexity of the process. No parts will be damaged during the disassembly process, and repeated installation and disassembly can be achieved.

[0076] Furthermore, a simple description is given of one usage of the electronic oil pump connection terminal 100:

[0077] See Figure 3 and Figure 4 When the connecting terminal 100 is in use, the plug end 110 is plugged into the terminal plug portion 400, and the slit structure 111 pierces the motor enameled wire and electrically connects to the motor enameled wire. The terminal sealing ring 700 is placed on the connecting end 120 so that one side of the terminal sealing ring 700 is sealed against the smooth surface 130. The connection hole 121 of the connecting end 120 and the control circuit board 500 are tested for electrical connection. The inner ring of the terminal sealing ring 700 and the connecting end 120 are also interference fit. The sealing plate 600 passes through the connecting end 120 and then presses the terminal sealing ring 700. After installation, the sealing plate 600 applies pressure to the terminal sealing ring 700, and the deformation pressure generated is greater than the oil pressure in the stator cavity 210, to ensure that the oil in the stator cavity 210 does not enter the controller cavity 220. Then, the radial sealing ring 900 is used to seal the connection parts of the sealing plate 600, the motor housing 200, and the controller cover 800. It has the advantages of good sealing effect, high quality stability, simple process implementation, and the controller and motor can be disassembled without loss of function.

[0078] It should be noted that, in addition to the implementation methods of the present invention described in the above-mentioned specific embodiments, those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation method. On the contrary, the purpose of introducing the utility model in conjunction with the implementation method is to cover other options or modifications that may be extended based on the claims of the present utility model. In order to provide an in-depth understanding of the present utility model, the above description contains many specific details, and the present utility model can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present utility model, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other.

[0079] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0080] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the utility model.

[0081] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0082] In the description of this embodiment, it should be noted that, unless otherwise specified or limited, the terms "disposed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this embodiment based on specific circumstances.

[0083] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above description is provided to further illustrate the present invention in conjunction with specific embodiments, and that the present invention should not be construed as being limited to these descriptions. Those skilled in the art may make various changes in form and detail, including simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A connecting terminal of an electronic oil pump, characterized in that: The connecting terminal comprises: A plug-in end, the plug-in end is used to connect with the terminal plug-in portion in the electronic oil pump, a slit structure is provided in the middle of one end of the plug-in end connected with the terminal plug-in portion, and the slit structure is used to pierce the motor enameled wire in the terminal plug-in portion; A connecting end, the connecting end is fixedly connected to a side of the plug-in end away from the slit structure and protrudes from the plug-in end, and a connecting hole is provided at one end of the connecting end away from the plug-in end; wherein The end of the plug end close to the connecting end is provided with a smooth surface, and the end of the connecting end is fixedly arranged on the smooth surface.

2. The connecting terminal of the electronic oil pump according to claim 1, characterized in that: The smooth surface is formed such that at least the middle portion is a plane portion, and the end portion of the connecting end is fixedly arranged at a geometric center position of the plane portion.

3. The connecting terminal of the electronic oil pump according to claim 1, characterized in that: The plug end is a hollow ring structure, and the connecting end is a rod structure; and The connecting end and the plug end are integrally formed.

4. The connecting terminal of the electronic oil pump according to any one of claims 1 to 3, characterized in that: The slit structure comprises two slits formed on a side of the plug end away from the connecting end, the extending direction of each slit is the same as the extending direction of the connecting end, and a guide groove is further provided on a side of the slit away from the connecting end; and The width of the slot is smaller than the diameter of the motor enameled wire.

5. The connecting terminal of the electronic oil pump according to claim 4, characterized in that: The connecting hole is an elliptical fish-eye structure.

6. An electronic oil pump, characterized in that: The connecting terminal of the electronic oil pump according to any one of claims 1 to 5 further comprises: Motor housing; A motor stator, wherein the motor stator is located in the motor housing; A terminal plug-in portion, the terminal plug-in portion is located at one end of the motor stator, the terminal plug-in portion has a motor enameled wire, the plug-in end of the connecting terminal is plugged into the terminal plug-in portion, and the slit structure pierces the motor enameled wire and is electrically connected to the motor enameled wire, and the connecting terminal is extended along the axial direction of the motor stator; A control circuit board, the control circuit board is located on a side of the terminal plug-in portion away from the motor stator, the end of the connection end extends through the control circuit board, and the periphery of the connection hole of the connection end is electrically connected to the control circuit board; A sealing plate is located on a side of the control circuit board close to the motor stator. The sealing plate is extended along the radial direction of the motor stator and is respectively in sealing contact with the motor stator and the motor housing.

7. The electronic oil pump according to claim 6, characterized in that: In the axial direction of the motor stator, the sealing plate is located between the motor stator and the control circuit board, and the sealing plate divides the space in the motor housing into a stator cavity and a controller cavity which are sealed from each other; in A terminal through hole is also provided at a position where the sealing plate and the connecting terminal are adapted, and the connecting end passes through the terminal through hole; and A terminal sealing ring is further arranged between the sealing plate and the smooth surface, one side of the terminal sealing ring is in sealing contact with the sealing plate, and the other side of the terminal sealing ring is in sealing contact with the smooth surface.

8. The electronic oil pump according to claim 7, characterized in that: The sealing plate is pressed toward one side of the terminal sealing ring and compresses the terminal sealing ring to produce deformation, and; The deformation pressure between the terminal sealing ring and the smooth surface and the sealing plate is greater than the oil pressure in the stator cavity.

9. The electronic oil pump according to claim 8, characterized in that: In the axial direction, a controller cover is also provided on a side of the control circuit board away from the motor stator; in In the axial direction, one side of the controller cover close to the motor housing and the sealing plate is in sealing contact with the motor housing and the sealing plate respectively; and A radial sealing ring is also provided at the abutting positions of the sealing plate, the motor housing and the controller cover.

10. The electronic oil pump according to claim 9, characterized in that: The sealing plate and the motor housing abut against each other, and the ends close to the controller cover both have symmetrically arranged chamfered structures, and the radial sealing ring is located in the chamfered structures; and The radial sealing ring is respectively sealed and connected to the sealing plate, the motor housing and the controller cover, and is interference fit therewith.

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