Electronic oil pump connecting shell

Abstract

The invention discloses an electronic oil pump connecting shell which comprises a motor stator, an oil baffle cover, a PCB and an outer shell. One end of the motor stator is provided with a motor terminal base, and the motor terminal base is provided with a female terminal and a motor enameled wire connected with the female terminal; one end of the oil baffle cover is provided with a male end terminal, and the oil baffle cover and the motor stator are buckled and connected through the male end terminal and the female end terminal; a clamping groove is formed in the other end of the oil baffle cover, the PCB is arranged in the clamping groove and connected with the male end terminal, and the outer side of the clamping groove is connected with the outer shell in a sealed mode; a plug-in unit is arranged on the outer shell, and a plug-in unit shell terminal connected with the PCB is arranged in the plug-in unit. According to the scheme, only welding and assembling are needed in the electrical connection mode, extra tools and process equipment are not needed, and operation and installation are easy; according to the scheme, the radial sealing ring and the point sealant terminal are used for sealing, and the process is mature and reliable. According to the scheme, the heat dissipation cover is attached to the PCB, and the heat dissipation capacity of key parts is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic oil pumps, and more specifically, to an electronic oil pump connecting housing. Background Art

[0002] With the growing development of the automobile market, more and more vehicles are using electronic oil pumps as the power source for cooling and lubrication in the gearbox. At the same time, the development of new energy vehicles has made the motor system technology increasingly mature, and has also put forward higher requirements for the simplified system of electronic oil pumps.

[0003] Currently, common electronic oil pumps are generally air-cooled structures, relying on the air when the vehicle is running to remove heat. Analogous to the motor system of new energy vehicles with the same general structure, if the electronic oil pump can choose an oil cooling solution, the cooling efficiency can be greatly improved, which is more conducive to the performance of the electronic oil pump.

[0004] In an actual electronic oil pump, the motor part and the controller part are close to each other, the space is small, and UVW three-phase electrical connection is required. A normal air-cooled electronic oil pump only needs to consider the electrical connection method. If an oil-cooled cooling method is to be used, it is necessary to ensure the electrical connection between the motor part and the controller part, and additionally seal the motor cavity to ensure that the oil does not penetrate into the controller part.

[0005] Therefore, an internal connection structure of an oil-cooled electronic oil pump with good sealing effect, reliable electrical connection and simple structure is of high practical significance. Summary of the invention

[0006] An object of the present invention is to provide a new technical solution for connecting an electronic oil pump to a housing to solve the problems raised in the above-mentioned background technology.

[0007] According to a first aspect of the present invention, there is provided an electronic oil pump connection housing, comprising a motor stator, an oil baffle cover, a PCB board and an outer housing;

[0008] One end of the motor stator is provided with a motor terminal base, the motor terminal base is provided with a female terminal, and a motor enameled wire connected to the female terminal;

[0009] A male terminal is provided at one end of the oil baffle cover, and the oil baffle cover is buckled and connected to the motor stator through the male terminal and the female terminal; a card slot is provided at the other end of the oil baffle cover, and the PCB board is arranged in the card slot and connected to the male terminal, and the outer side of the card slot is sealed and connected to the outer shell;

[0010] The outer shell is provided with a plug-in, and the plug-in is provided with a plug-in shell terminal connected with the PCB board.

[0011] Optionally, according to the electronic oil pump connecting housing of the present invention, a positioning groove is provided at one end of the motor stator facing the oil baffle cover, and a positioning block is provided on the oil baffle cover, and the positioning block cooperates with the positioning groove.

[0012] Optionally, according to the electronic oil pump connecting housing described in the present invention, a first sealing ring groove is provided on the outer side of the slot, and a first sealing ring is embedded in the first sealing ring groove, so that the slot and the outer housing are sealed and connected.

[0013] Optionally, according to the electronic oil pump connecting shell of the present invention, the PCB board includes a PCB board body, the PCB board body is provided with a first terminal welding hole, and the first terminal welding hole is welded to the male terminal.

[0014] Optionally, according to the electronic oil pump connecting shell described in the present invention, a plurality of fixing holes are further provided on the edge of the PCB board body, and a plurality of fixing blocks are provided on the outer shell, and the fixing blocks correspond to the fixing holes one by one to fix the PCB board body in the slot.

[0015] Optionally, according to the electronic oil pump connection housing of the present invention, a second terminal welding hole is further provided on the PCB board body, and the second terminal welding hole is welded to the plug-in housing terminal.

[0016] Optionally, the electronic oil pump connecting shell according to the present invention further includes a heat dissipation cover, and a plurality of first bolt holes and second bolt holes corresponding to each other are respectively provided on the circumferential sides of the outer shell and the heat dissipation cover, and the first bolt holes and the second bolt holes are fixedly connected by bolts.

[0017] Optionally, according to the electronic oil pump connecting shell of the present invention, a weight-reducing hole is provided on the outer shell, a second sealing ring groove is provided on the end face of the weight-reducing hole, a second sealing ring is provided in the second sealing ring groove, and the second sealing ring is abutted against the inner end face of the heat dissipation cover to make the outer shell and the heat dissipation cover sealed and connected.

[0018] Optionally, according to the electronic oil pump connecting shell described in the present invention, the inner end surface of the heat dissipation cover located outside the weight reduction hole is provided with a PCB heat dissipation column, the PCB heat dissipation column is in contact with the PCB board, and the outer end surface of the heat dissipation cover is also provided with external heat dissipation ribs to dissipate the heat of the PCB board to the outside.

[0019] Optionally, according to the electronic oil pump connection housing of the present invention, the male terminal and the oil baffle cover are connected by a sealant.

[0020] Beneficial effects brought by the technical solution of the present invention:

[0021] 1) Compared with the fisheye terminal and the single-side piercing connection method, this solution uses welding and double-side piercing terminals for electrical connection, which has more reliable electrical connection performance, and the final step of connection is the matching of male and female terminals, which is simpler and more controllable than the piercing process, and has a better connection effect;

[0022] 2) The electrical connection method of this solution only requires welding and assembly, no additional tooling and process equipment are required, and the operation and installation are simple;

[0023] 3) This solution uses radial sealing rings and point sealant terminals for sealing, and the process is mature and reliable.

[0024] 4) This solution uses a heat dissipation cover to fit the PCB board to further improve the heat dissipation capacity of key parts.

[0025] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0027] Figure 1 It is a structural schematic diagram of the electronic oil pump connected to the housing disclosed in the present invention;

[0028] Figure 2 It is a structural schematic diagram of the motor stator disclosed in the present invention;

[0029] Figure 3 It is a schematic diagram of the connection between the motor stator and the oil baffle cover disclosed in the present invention;

[0030] Figure 4 This is a connection diagram of the PCB board disclosed in the present invention;

[0031] Figure 5 It is a schematic diagram of the inner end surface of the outer shell disclosed in the present invention;

[0032] Figure 6 It is a schematic diagram of the outer end surface of the outer shell disclosed in the present invention;

[0033] Figure 7 It is a schematic structural diagram of the heat dissipation cover disclosed in the present invention.

[0034] Description of reference numerals:

[0035] 1. Motor stator; 2. Oil shielding cover; 3. PCB board; 4. Outer shell; 5. Heat dissipation cover;

[0036] 1.1. Motor terminal base; 1.2. Motor enameled wire; 1.3. Female terminal;

[0037] 2.1. First sealing ring groove; 2.2. Male terminal; 2.3. Sealant; 2.4. Positioning block;

[0038] 3.1, second terminal welding hole; 3.2, fixing hole; 3.3, PCB board body; 3.4, first terminal welding hole;

[0039] 4.1. Plug-in housing terminal; 4.2. Fixing block; 4.3. Plug-in; 4.4. First bolt hole; 4.5. Second sealing ring groove;

[0040] 5.1. Second bolt hole; 5.2. PCB heat dissipation column; 5.3. External heat dissipation ribs. DETAILED DESCRIPTION

[0041] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0042] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0043] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0044] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0045] according to Figures 1 to 7 As shown, the present invention provides an electronic oil pump connection housing, comprising a motor stator 1, an oil baffle cover 2, a PCB board 3 and an outer housing 4;

[0046] A motor terminal base 1.1 is provided at one end of the motor stator 1, and a female terminal 1.3 and a motor enameled wire 1.2 connected to the female terminal 1.3 are provided on the motor terminal base 1.1; the female terminal 1.3 is directly assembled into the motor terminal base 1.1 until it is flush with the top, and the motor terminal base 1.1 will fill the inside of the motor terminal base 1.1. During the assembly process, the motor terminal base 1.1 pierces the insulation layer of the motor enameled wire 1.2 to ensure electrical connection.

[0047] One end of the oil shielding cover 2 is provided with a male terminal 2.2, and the oil shielding cover 2 is buckled and connected to the motor stator 1 through the male terminal 2.2 and the female terminal 1.3; the other end of the oil shielding cover 2 is provided with a card slot, and the PCB board 3 is arranged in the card slot and connected to the male terminal 2.2, and the outer side of the card slot is sealed and connected to the outer shell 4;

[0048] The outer shell 4 is provided with an insert 4.3, and the insert shell terminal 4.1 connected to the PCB board 3 is provided inside the insert 4.3.

[0049] Furthermore, if Figure 3 As shown, a positioning groove is provided at one end of the motor stator 1 facing the oil shield 2, and a positioning block 2.4 is provided on the oil shield 2, and the positioning block 2.4 cooperates with the positioning groove. In this embodiment, the electrical connection between the motor stator 1 and the oil shield 2 is through the cooperation of male and female terminals, and the positioning block 2.4 is used for axial and radial positioning.

[0050] Furthermore, a first sealing ring groove 2.1 is provided on the outer side of the card slot, and a first sealing ring is embedded in the first sealing ring groove 2.1, so that the card slot and the outer shell 4 are sealed and connected, ensuring the sealing from the motor side to the controller side and preventing the oil on the motor side from entering the controller side.

[0051] Furthermore, the PCB board 3 comprises a PCB board body 3.3, on which a first terminal welding hole 3.4 is provided, and the first terminal welding hole 3.4 is welded to the male terminal 2.2, so that the circuit connection is ensured by welding.

[0052] Furthermore, a plurality of fixing holes 3.2 are provided on the edge of the PCB board body 3.3, and a plurality of fixing blocks 4.2 are provided on the outer shell 4, and the fixing blocks 4.2 correspond to the fixing holes 3.2 one by one, so as to fix the PCB board body 3.3 in the card slot. The PCB board 3 is effectively positioned between the outer shell 4 and the PCB board 3 through the cooperation between the fixing holes 3.2 and the fixing blocks 4.2, thereby facilitating the connection between the PCB board 3 and the male terminal 2.2 and the plug-in shell terminal 4.1.

[0053] Furthermore, a second terminal welding hole 3.1 is further provided on the PCB board body 3.3, and the second terminal welding hole 3.1 is welded to the plug-in housing terminal 4.1, and the circuit connection is ensured by welding.

[0054] Furthermore, it also includes a heat dissipation cover 5. The outer shell 4 and the heat dissipation cover 5 are respectively provided with a plurality of first bolt holes 4.4 and second bolt holes 5.1 corresponding to each other on the circumference thereof. The first bolt holes 4.4 and the second bolt holes 5.1 are fixedly connected by bolts.

[0055] Furthermore, a weight-reducing hole is provided on the outer shell 4, and a second sealing ring groove 4.5 is provided on the end surface of the weight-reducing hole. A second sealing ring is provided in the second sealing ring groove 4.5, and the second sealing ring abuts against the inner end surface of the heat dissipation cover 5, so that the outer shell 4 and the heat dissipation cover 5 are sealed. The outer shell 4 and the heat dissipation cover 5 are sealed by the second sealing ring on the end surface, ensuring that the controller cavity is isolated from the outside and ensuring protection.

[0056] Furthermore, the inner end surface of the heat dissipation cover 5 outside the weight reduction hole is provided with a PCB heat dissipation column 5.2, which contacts the PCB board 3, and the outer end surface of the heat dissipation cover 5 is also provided with an external heat dissipation rib 5.3 to dissipate the heat of the PCB board 3 to the outside.

[0057] Furthermore, the male terminal 2.2 is connected to the oil retaining cover 2 via a sealant 2.3 to ensure that the oil on the motor side does not enter the controller side.

[0058] During assembly, first place the PCB board 3 into the outer shell 4 and perform welding, then place the oil baffle cover 2 into the outer shell 4 and perform welding, then place the heat dissipation cover 5 onto the outer shell 4 and fasten it with bolts, and then connect the whole consisting of the oil baffle cover 2, the PCB board 3, the outer shell 4 and the heat dissipation cover 5 to the motor stator 1.

[0059] Although some specific embodiments of the present invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An electronic oil pump connecting housing, characterized in that: Including motor stator, oil shielding cover, PCB board and outer shell; One end of the motor stator is provided with a motor terminal base, the motor terminal base is provided with a female terminal, and a motor enameled wire connected to the female terminal; A male terminal is provided at one end of the oil baffle cover, and the oil baffle cover is buckled and connected to the motor stator through the male terminal and the female terminal; a card slot is provided at the other end of the oil baffle cover, and the PCB board is arranged in the card slot and connected to the male terminal, and the outer side of the card slot is sealed and connected to the outer shell; The outer shell is provided with a plug-in, and the plug-in is provided with a plug-in shell terminal connected with the PCB board.

2. The electronic oil pump connecting housing according to claim 1, characterized in that: A positioning groove is provided at one end of the motor stator facing the oil baffle cover, and a positioning block is provided on the oil baffle cover, and the positioning block cooperates with the positioning groove.

3. The electronic oil pump connecting housing according to claim 1, characterized in that: A first sealing ring groove is provided on the outer side of the card slot, and a first sealing ring is embedded in the first sealing ring groove, so that the card slot and the outer shell are sealed and connected.

4. The electronic oil pump connecting housing according to claim 1, characterized in that: The PCB board comprises a PCB board body, the PCB board body is provided with a first terminal welding hole, and the first terminal welding hole is welded to the male terminal.

5. The electronic oil pump connecting housing according to claim 4, characterized in that: A plurality of fixing holes are also arranged on the edge of the PCB board body, and a plurality of fixing blocks are arranged on the outer shell. The fixing blocks correspond to the fixing holes one by one to fix the PCB board body in the card slot.

6. The electronic oil pump connecting housing according to claim 5, characterized in that: The PCB board body is also provided with a second terminal welding hole, and the second terminal welding hole is welded to the plug-in housing terminal.

7. The electronic oil pump connecting housing according to any one of claims 1 to 6, characterized in that: It also includes a heat dissipation cover, and the outer shell and the heat dissipation cover are respectively provided with a plurality of first bolt holes and second bolt holes corresponding to each other on the circumferential sides, and the first bolt holes and the second bolt holes are fixedly connected by bolts.

8. The electronic oil pump connecting housing according to claim 7, characterized in that: The outer shell is provided with a weight-reducing hole, the end surface of the weight-reducing hole is provided with a second sealing ring groove, a second sealing ring is provided in the second sealing ring groove, and the second sealing ring abuts against the inner end surface of the heat dissipation cover, so that the outer shell and the heat dissipation cover are sealed and connected.

9. The electronic oil pump connecting housing according to claim 8, characterized in that: The inner end surface of the heat dissipation cover outside the weight reduction hole is provided with a PCB heat dissipation column, the PCB heat dissipation column is in contact with the PCB board, and the outer end surface of the heat dissipation cover is also provided with an external heat dissipation rib to dissipate the heat of the PCB board to the outside.

10. The electronic oil pump connecting housing according to claim 1, characterized in that: The male terminal is connected to the oil retaining cover by means of sealant.

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