Electric hydraulic pump, active hydraulic suspension and automobile

Abstract

The utility model relates to the technical field of vehicles, in particular to an electric hydraulic pump, an active hydraulic suspension and an automobile. The electric hydraulic pump comprises a pump, a motor, a driving module and a first connector; the motor is provided with a motor shaft and is in transmission connection with the pump through the motor shaft; the driving module is arranged on the peripheral side of the motor; the driving module comprises a driving plate and a power panel, the driving plate and the power panel are arranged at intervals in the radial direction of the motor shaft and are electrically connected, and the driving plate is electrically connected with the motor; the first connector comprises a first plugging part and a first connecting part which are mutually plugged and matched, one of the first plugging part and the first connecting part is arranged on the driving board, and the other one is arranged on the power board. The power panel and the drive board are connected in an inserted mode through the first connector, rapid insertion and extraction are facilitated, assembling and overhauling are facilitated, and the assembling efficiency is improved during production.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to an electro-hydraulic pump, an active hydraulic suspension, and an automobile. Background Technology

[0002] An electric hydraulic pump can be connected to a shock absorber through a hydraulic circuit to form a closed-loop hydraulic system, providing power to the shock absorber and adjusting the damping force of the shock absorber by controlling the flow direction and pressure of the hydraulic oil.

[0003] In related technologies, electric hydraulic pumps include a motor, pump body, capacitor plate, drive plate, and control plate. When the electric hydraulic pump is powered on, current is transmitted through the capacitor plate to the drive plate, and then through the drive plate to the motor, enabling the motor to rotate. However, due to the large number of internal parts and complex connections, the overall assembly efficiency of electric hydraulic pumps is low. Utility Model Content

[0004] Therefore, it is necessary to provide an electric hydraulic pump to accelerate assembly efficiency and facilitate rapid connection.

[0005] The electric hydraulic pump includes a pump, a motor, a drive module, and a first connector; the motor has a motor shaft and is driven to the pump through the motor shaft; the drive module is located on the outer periphery of the motor; the drive module includes a drive plate and a power board, the drive plate and the power board are arranged radially spaced along the motor shaft and electrically connected, and the drive plate is electrically connected to the motor; the first connector includes a first plug-in part and a first connecting part that are mutually plugged in, one of which is located on the drive plate and the other is located on the power board.

[0006] Understandably, the drive module is capable of driving the motor. Specifically, after the power board is powered on, it conducts current to the drive board, and then from the drive board to the motor, causing the motor to drive the pump to output oil. The power board and the drive board are connected via a first connector, which facilitates quick plugging and unplugging, making assembly and maintenance easier and improving assembly efficiency during production.

[0007] In one embodiment, the first connecting portion includes two spaced-apart contact groups with an insertion gap between them, and each contact group includes a plurality of contact pins spaced apart along a first direction; the first insertion portion includes a insert, which is inserted into the insertion gap and sandwiched between the contact pins in the two contact groups.

[0008] In one embodiment, the electric hydraulic pump further includes a control module located on the side of the motor away from the pump along the axial direction of the motor shaft, and the control module is electrically connected to the drive board.

[0009] In one embodiment, the control module includes a control board; the electric hydraulic pump further includes a second connector, the second connector including a second connecting part and a second plug-in part that are mutually plugged into each other, one of the second connecting part and the second plug-in part being disposed on the control board and the other being disposed on the drive board, the control board being electrically connected to the drive board through the second connector.

[0010] In one embodiment, the electric hydraulic pump further includes a pressure sensor located on the motor or the pump for detecting fluid pressure; the pressure sensor is electrically connected to the drive board and connected to the control board through the drive board.

[0011] In one embodiment, the electric hydraulic pump further includes a third connector, which includes a third connecting part and a third plug-in part that are mutually plugged in. One of the third connecting part and the third plug-in part is located on the pressure sensor, and the other is located on the drive plate. The pressure sensor is electrically connected to the drive plate through the third connector.

[0012] In one embodiment, the electro-hydraulic pump further includes a position sensor connected to one end of the motor shaft away from the pump and electrically connected to the control board.

[0013] In one embodiment, the electric hydraulic pump further includes a fourth connector, which includes a fourth connecting part and a fourth plug-in part that are mutually inserted and mated. One of the fourth connecting part and the fourth plug-in part is disposed on the position sensor, and the other is disposed on the control board. The position sensor is electrically connected to the control board through the fourth connector.

[0014] In one embodiment, the electric hydraulic pump further includes a housing assembly, which includes a motor housing and an upper cover connected to the motor housing. The motor housing has a motor cavity and a control cavity spaced apart, and a drive cavity is provided between the motor housing and the upper cover. The motor is assembled in the motor cavity, the control module is assembled in the control cavity, and the drive module is assembled in the drive cavity. The drive board and the power board in the drive module are respectively connected to the upper cover.

[0015] In one embodiment, the hydraulic electric pump further includes a signal connector that passes through the upper cover and is electrically connected to the control board.

[0016] In one embodiment, the electric hydraulic pump further includes a fifth connector, which includes a fifth connecting portion and a fifth plug portion that are mutually plugged in. One of the fifth connecting portion and the fifth plug portion is located on the signal connector, and the other is located on the control board. The signal connector is electrically connected to the control board through the fifth connector.

[0017] In one embodiment, along the axial direction of the motor shaft, the control module has corresponding drive modules, motors, pumps and housing assemblies on both sides, and the motors located on both sides of the control module are electrically connected to the same control module through the drive modules.

[0018] This application also provides an active hydraulic suspension, which includes a shock absorber and the aforementioned electro-hydraulic pump, wherein the electro-hydraulic pump is in fluid communication with the shock absorber.

[0019] This application also provides an automobile that includes the above-described active hydraulic suspension. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 Exploded view of a partial structure of the electric hydraulic pump provided in this application;

[0022] Figure 2 Exploded view of the power board and control board in the electric hydraulic pump provided in this application;

[0023] Figure 3 A partial structural cross-sectional view of the electric hydraulic pump provided in this application;

[0024] Figure 4 An exploded view of the connection between the drive plate and the pressure sensor in the electro-hydraulic pump provided in this application;

[0025] Figure 5 A partial three-dimensional view of the electric hydraulic pump provided in this application;

[0026] Figure 6 An exploded view of the electro-hydraulic pump provided in this application.

[0027] Reference numerals: 100, electric hydraulic pump; 10, drive module; 11, drive board; 12, power board; 20, control module; 21, control board; 31, pressure sensor; 32, position sensor; 41, first connector; 411, first connecting part; 4111, contact group; 4112, connector; 412, first insertion part; 4121, insert; 42, second connector; 421, second connecting part; 422, second insertion part ; 43. Third connector; 431. Third connecting part; 432. Third plug-in part; 44. Fourth connector; 441. Fourth connecting part; 442. Fourth plug-in part; 45. Fifth connector; 451. Fifth connecting part; 452. Fifth plug-in part; 50. Housing assembly; 51. Motor housing; 52. Top cover; 501. Motor cavity; 502. Control cavity; 503. Drive cavity; 61. Power connector; 62. Signal connector. Detailed Implementation

[0028] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0029] It should be noted that when a component is referred to as being "fixed to," "set on," or "properly placed on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0033] Please see Figures 1 to 6 This application provides an electric hydraulic pump 100, which includes a pump, a motor and a drive module 10. The motor is provided with a motor shaft and is connected to the pump through the motor shaft drive. The drive module 10 is located on the outer periphery of the motor and can input a drive signal to the motor to drive the motor to run. The motor drives the pump to run through the motor shaft to realize the output of oil.

[0034] like Figures 1 to 3 As shown, in some embodiments, the drive module 10 includes a drive board 11 and a power board 12. The drive board 11 and the power board 12 are arranged radially apart along the motor shaft and are electrically connected, with the drive board 11 electrically connected to the motor. Thus, the power board 12 can be connected to an external power source to input current to the drive board 11, which then inputs it to the motor to power it on. Simultaneously, the drive board 11 can also input drive signals to the motor to enable its operation.

[0035] like Figure 2 As shown, in some embodiments, the electric hydraulic pump 100 includes a first connector 41, which includes a first insertion portion 412 and a first connecting portion 411 that are mutually inserted and mated. One of these portions is located on the drive board 11, and the other is located on the power board 12. Thus, the drive board 11 and the power board 12 can be connected via the first connector 41 without requiring additional wiring, reducing cumbersome cabling, facilitating quick plugging and unplugging, simplifying assembly and maintenance, and ultimately improving production efficiency.

[0036] In some embodiments, the first plug-in portion 412 is disposed on the power board 12, the first connection portion 411 is disposed on the drive board 11, the drive board 11 is provided with a drive circuit that can be electrically connected to the first connection portion 411, and the power board 12 is provided with a power circuit that is electrically connected to the first plug-in portion 412; of course, the first plug-in portion 412 can also be disposed on the drive board 11, and the first connection portion 411 can also be disposed on the power board 12.

[0037] like Figure 5 As shown, in some embodiments, the electric hydraulic pump 100 includes a power connector 61, which is plugged into a power board 12, and the power board 12 is connected to external power through the power connector 61. The power board 12 is also provided with capacitors and filters connected to the power circuit to convert and transmit current.

[0038] like Figure 2 As shown, in some embodiments, the first connecting part 411 includes two spaced contact groups 4111, with an insertion gap between the two contact groups 4111. Each contact group 4111 includes a plurality of contact pins spaced apart along a first direction. The first insertion part 412 includes a insert 4121, which is inserted into the insertion gap and sandwiched between the contact pins in the two contact groups 4111. The insert 4121 and the contact pins are electrically connected, resulting in a simple structure.

[0039] In some embodiments, the contact pins are made of an elastic material that can deform under force during insertion to facilitate the insertion of the insert 4121 and return to their original shape after the insert 4121 is pulled out.

[0040] like Figure 2 As shown, in some embodiments, the first connection portion 411 further includes a connector 4112 connected to the contact group 4111. The connector 4112 is mounted on the drive board 11 or the power board 12, providing support for the contact group 4111 and improving the stability of insertion and removal.

[0041] In some embodiments, the contact pin includes a connecting section, a bent section, and an abutting section. The bent section is connected between the connecting section and the abutting section, which can reduce stress concentration during the insertion of the insert 4121. The abutting section and the connecting section are respectively connected to the connector 4112, and the abutting section is used to connect the insert 4121. The arrangement of the abutting section and the connecting section helps to enhance the stability of the root of the contact pin and ensure structural strength.

[0042] In some embodiments, the bent section is tapered toward the first insertion portion 412 along the insertion direction to form an inclined surface for guiding the smooth insertion of the first insertion portion 412 and improving insertion efficiency.

[0043] In some embodiments, the end of the first plug portion 412 is tapered toward the first connecting portion 411 along the plugging direction to facilitate smooth initial insertion. As the insertion depth increases, the size of the first plug portion 412 also gradually increases to ensure the plugging reliability between the first plug portion 412 and the first connecting portion 411.

[0044] In some embodiments, the first plug-in portion 412 may also include a pin, and correspondingly, the first connecting portion 411 may be provided with a socket, and the pin is inserted into the socket to realize plugging and connection, which is simple to operate.

[0045] In some embodiments, the portions of the first plug-in portion 412 and the first connecting portion 411 used for connection are made of metal to facilitate electrical connection.

[0046] like Figure 1 and Figure 2 As shown, in some embodiments, the first connector 41 is located on or near the side of the drive board 11 and the power board 12. This arrangement allows the drive board 11 and the power board 12 to avoid the components on their respective boards, thus preventing interference during the plug-in connection.

[0047] like Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, in some embodiments, the electric hydraulic pump 100 further includes a control module 20. Along the axial direction of the motor shaft, the control module 20 is located on the side of the motor away from the pump, and the control module 20 is electrically connected to the drive board 11. In this way, the control module 20 can transmit control signals to the drive board 11, and the drive board 11 can then convert the control signals into drive signals and transmit them to the motor to drive the motor to operate.

[0048] like Figure 3 As shown, in some embodiments, the control module 20 includes a control board 21, which is provided with a control circuit that is electrically connected to the drive circuit of the drive board 11.

[0049] like Figure 3 As shown, in some embodiments, the electric hydraulic pump 100 further includes a second connector 42. The second connector 42 includes a second connecting portion 421 and a second plug-in portion 422 that are mutually inserted and mated. One of the second connecting portion 421 and the second plug-in portion 422 is disposed on the control board 21, and the other is disposed on the drive board 11. The control board 21 is electrically connected to the drive board 11 through the second connector 42 to realize current conduction. In this way, the control board 21 and the drive board 11 are plugged and connected, which facilitates rapid assembly and further improves assembly efficiency. Moreover, no wiring is required, avoiding interference with the component structure.

[0050] In some embodiments, the second plug-in portion 422 is disposed on the control board 21, the second connection portion 421 is disposed on the drive board 11, the drive board 11 is provided with a drive circuit that can be electrically connected to the second connection portion 421, and the control circuit of the control board 21 is electrically connected to the second plug-in portion 422; of course, the second plug-in portion 422 can also be disposed on the drive board 11, and the second connection portion 421 can also be disposed on the control board 21.

[0051] In some embodiments, the connecting portions of the second plug-in portion 422 and the second connecting portion 421 are made of metal to facilitate electrical connection. For details regarding the specific structure of the second plug-in portion 422 and the second connecting portion 421, please refer to different embodiments of the first plug-in portion 412 and the first connecting portion 411, which will not be repeated here.

[0052] like Figure 4 As shown, in some embodiments, the electric hydraulic pump 100 further includes a pressure sensor 31, which is located on the motor or pump and used to detect fluid pressure. The pressure sensor 31 is electrically connected to the drive board 11 and connected to the control board 21 through the drive board 11. Since the control module 20 is located at the end of the motor away from the pump, and the pressure sensor 31 is located on the motor or pump, the distance between the pressure sensor 31 and the control module 20 is relatively far. Direct connection could easily result in excessively long cabling, causing interference to other structures. Therefore, by first electrically connecting the pressure sensor 31 to the drive module 10, and then electrically connecting it to the control module 20 through the drive module 10, the long-distance connection between the pressure sensor 31 and the control module 20 is overcome, and the use of long cabling is eliminated, thus avoiding interference to other structures.

[0053] like Figure 4 As shown, in some embodiments, the electric hydraulic pump 100 further includes a third connector 43, which includes a third connecting portion 431 and a third plug-in portion 432 that are mutually inserted. One of the third connecting portion 431 and the third plug-in portion 432 is located on the pressure sensor 31, and the other is located on the drive board 11. The pressure sensor 31 is electrically connected to the drive board 11 through the third connector 43. Thus, by inserting the pressure sensor 31 and the drive module 10 together, assembly is quick and convenient, improving assembly and production efficiency and facilitating worker operation. Specifically, the pressure sensor 31 has a pressure sensing circuit board, which is electrically connected to the drive circuit on the drive board 11 through the aforementioned insertion.

[0054] In some embodiments, the third plug-in portion 432 is disposed on the pressure sensor 31, the third connection portion 431 is disposed on the drive module 10, the drive module 10 is provided with a drive circuit that can be electrically connected to the third connection portion 431, and the pressure sensing circuit board of the pressure sensor 31 is electrically connected to the third plug-in portion 432; of course, the third plug-in portion 432 can also be disposed on the drive module 10, and the third connection portion 431 can also be disposed on the pressure sensor 31.

[0055] In some embodiments, the connecting portions of the third plug-in portion 432 and the third connecting portion 431 are made of metal to facilitate electrical connection. For details regarding the specific structure of the third plug-in portion 432 and the third connecting portion 431, please refer to different embodiments of the first plug-in portion 412 and the first connecting portion 411, which will not be repeated here.

[0056] like Figure 5 As shown, in some embodiments, the electric hydraulic pump 100 further includes a position sensor 32, which is connected to the end of the motor shaft away from the pump and electrically connected to the control board 21. Thus, the position sensor 32 can detect the rotation of the motor, thereby obtaining the rotational speed of the motor body. The position sensor 32 includes a position sensing circuit board and a position detection body connected to the position sensing circuit board. The position sensing circuit board is electrically connected to the control circuit of the control board 21. The position detection body transmits the detection signal to the position sensing circuit board, which then transmits the signal to the control board 21 for processing by the control circuit. Of course, in some embodiments, the position sensing circuit board and the control board 21 can also be functionally integrated; in this case, the position detection body will be directly connected to the control board 21.

[0057] like Figure 5 As shown, in some embodiments, the electric hydraulic pump 100 further includes a fourth connector 44, which includes a fourth connecting portion 441 and a fourth plug-in portion 442 that are mutually inserted. One of the fourth connecting portion 441 and the fourth plug-in portion 442 is disposed on the position sensor 32, and the other is disposed on the control board 21. The position sensor 32 is electrically connected to the control board 21 through the fourth connector 44. In this way, the position sensor 32 can be assembled with the control board 21 more quickly, which helps to improve the assembly efficiency between the two and reduce wiring interference.

[0058] In some embodiments, the fourth plug-in portion 442 is disposed on the control board 21, the fourth connection portion 441 is disposed on the position sensor 32, the position sensing circuit board of the position sensor 32 is electrically connected to the fourth connection portion 441, and the control circuit of the control board 21 is electrically connected to the fourth plug-in portion 442; of course, the fourth plug-in portion 442 may also be disposed on the position sensor 32, and the fourth connection portion 441 may also be disposed on the control board 21.

[0059] In some embodiments, the connecting portions of the fourth plug-in portion 442 and the fourth connecting portion 441 are made of metal to facilitate electrical connection. For details regarding the specific structure of the fourth plug-in portion 442 and the fourth connecting portion 441, please refer to different embodiments of the first plug-in portion 412 and the first connecting portion 411, which will not be repeated here.

[0060] like Figure 1 and Figure 6 As shown, in some embodiments, the electric hydraulic pump 100 further includes a housing assembly 50, which includes a motor housing 51 and an upper cover 52 connected to the motor housing 51. The motor housing 51 has a motor cavity 501 and a control cavity 502 spaced apart, and a drive cavity 503 is provided between the motor housing 51 and the upper cover 52. A motor is installed in the motor cavity 501, a control module 20 is installed in the control cavity 502, and a drive module 10 is installed in the drive cavity 503. The drive plate 11 and the power board 12 in the drive module 10 are respectively connected to the upper cover 52. With this configuration, the housing assembly 50 is divided into three cavities to accommodate the motor, the control module 20, and the drive module 10 respectively, thereby achieving structural protection. The motor housing 51 can fix the motor, and the upper cover 52 can fix the positions of the drive plate 11 and the power board 12.

[0061] In some embodiments, the drive board 11 and the power board 12 are respectively connected to the upper cover 52 by screws, making disassembly and assembly convenient.

[0062] like Figure 3 , Figure 5 and Figure 6 As shown, in some embodiments, the hydraulic electric pump further includes a signal connector 62, which passes through the upper cover 52 and is electrically connected to the control board 21. The signal connector 62 is capable of transmitting signals to the control board 21.

[0063] like Figure 3 As shown, in a further embodiment, the electric hydraulic pump 100 also includes a fifth connector 45. The fifth connector 45 includes a fifth connecting portion 451 and a fifth plug-in portion 452 that are mutually inserted. One of the fifth connecting portion 451 and the fifth plug-in portion 452 is located on the signal connector 62, and the other is located on the control board 21. The signal connector 62 is electrically connected to the control board 21 through the fifth connector 45. In this way, the signal connector 62 can be assembled with the control board 21 more quickly, which helps to improve the assembly efficiency between the two and reduce wiring interference.

[0064] In some embodiments, the fifth plug-in portion 452 is disposed on the control board 21, the fifth connection portion 451 is disposed on the signal connector 62, the signal connector 62 is provided with a signal circuit board that can be electrically connected to the fifth connection portion 451, and the control circuit of the control board 21 is electrically connected to the fifth plug-in portion 452; of course, the fifth plug-in portion 452 can also be disposed on the signal connector 62, and the fifth connection portion 451 can also be disposed on the control board 21.

[0065] Specifically, the connecting portions of the fifth plug-in portion 452 and the fifth connecting portion 451 are made of metal to facilitate electrical connection. For details regarding the specific structure of the fifth plug-in portion 452 and the fifth connecting portion 451, please refer to different embodiments of the first plug-in portion 412 and the first connecting portion 411; further details will not be provided here.

[0066] It is precisely the multi-connection configuration of the first connector 41, the second connector 42, the third connector 43, the fourth connector 44, and the fifth connector 45 that, while facilitating connection, improves overall assembly efficiency, significantly reduces internal wiring, avoids interference caused by wiring, and makes the connection safer and more reliable.

[0067] like Figure 6 As shown, in a specific embodiment, along the axial direction of the motor shaft, corresponding drive modules 10, motors, pumps, and housing assemblies 50 are respectively provided on both sides of the control module 20. The motors located on both sides of the control module 20 are electrically connected to the same control module 20 through the drive modules 10. In this way, the electric hydraulic pump 100 can achieve bidirectional oil supply, and the motors located on both sides of the control module 20 can share a single control board 21 for control, reducing the number of parts, saving space, and reducing costs.

[0068] This application also provides an active hydraulic suspension, including a shock absorber and the aforementioned electro-hydraulic pump 100. The pump of the electro-hydraulic pump 100 is in fluid communication with the shock absorber to input oil into the shock absorber for vibration damping. The electro-hydraulic pump 100 provides active vibration damping control for the shock absorber, improving the vibration damping effect of the active hydraulic suspension. The active hydraulic suspension also includes a suspension body, to which both the aforementioned electro-hydraulic pump 100 and the shock absorber are connected.

[0069] This application also provides a vehicle including the aforementioned active hydraulic suspension to achieve vibration reduction on bumpy roads. Specifically, the vehicle wheels are connected to the active hydraulic suspension via wheel hubs, and the active hydraulic suspension is connected to the vehicle body to support the wheels and body, thereby cooperating with other structures to control the wheel trajectory. The active hydraulic suspension can reduce the impact transmitted to the wheels due to road bumps during vehicle operation, thereby improving the vehicle's stability and comfort while driving.

[0070] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. An electric hydraulic pump, characterized in that, include: Pump; An electric motor is provided with a motor shaft and is connected to the pump via the motor shaft; A drive module is disposed on the outer periphery of the motor; the drive module includes a drive board and a power board, the drive board and the power board are arranged radially spaced along the motor shaft and electrically connected, and the drive board is electrically connected to the motor; The first connector includes a first plug-in portion and a first connecting portion that are mutually plugged in and engaged, one of which is located on the drive board and the other is located on the power board.

2. The electric hydraulic pump according to claim 1, characterized in that, The first connecting part includes two spaced contact groups, with an insertion gap between the two contact groups, and each contact group includes a plurality of contact pins spaced apart along a first direction; The first insertion part includes a insert, which is inserted into the insertion gap and sandwiched between the contact pins in the two sets of contact groups.

3. The electric hydraulic pump according to claim 1, characterized in that, The electric hydraulic pump also includes a control module, which is located on the side of the motor away from the pump along the axial direction of the motor shaft, and is electrically connected to the drive board.

4. The electric hydraulic pump according to claim 3, characterized in that, The control module includes a control board; The electric hydraulic pump also includes a second connector, which includes a second connecting part and a second plug-in part that are mutually plugged in. One of the second connecting part and the second plug-in part is located on the control board, and the other is located on the drive board. The control board is electrically connected to the drive board through the second connector.

5. The electric hydraulic pump according to claim 4, characterized in that, The electric hydraulic pump also includes a pressure sensor, which is located on the motor or the pump and is used to detect fluid pressure; the pressure sensor is electrically connected to the drive board and connected to the control board through the drive board.

6. The electric hydraulic pump according to claim 5, characterized in that, The electric hydraulic pump also includes a third connector, which includes a third connecting part and a third plug-in part that are mutually plugged in. One of the third connecting part and the third plug-in part is located on the pressure sensor, and the other is located on the drive board. The pressure sensor is electrically connected to the drive board through the third connector.

7. The electric hydraulic pump according to claim 4, characterized in that, The electric hydraulic pump also includes a position sensor, which is connected to the end of the motor shaft away from the pump and is electrically connected to the control board.

8. The electric hydraulic pump according to claim 7, characterized in that, The electric hydraulic pump also includes a fourth connector, which includes a fourth connecting part and a fourth plug-in part that are mutually plugged in. One of the fourth connecting part and the fourth plug-in part is located on the position sensor, and the other is located on the control board. The position sensor is electrically connected to the control board through the fourth connector.

9. The electric hydraulic pump according to claim 4, characterized in that, The electric hydraulic pump also includes a housing assembly, which includes a motor housing and an upper cover connected to the motor housing. The motor housing has a motor cavity and a control cavity spaced apart, and a drive cavity is provided between the motor housing and the upper cover. The motor is assembled in the motor cavity, the control module is assembled in the control cavity, and the drive module is assembled in the drive cavity; the drive board and the power board in the drive module are respectively connected to the upper cover.

10. The electric hydraulic pump according to claim 9, characterized in that, The electric hydraulic pump also includes a signal connector, which passes through the upper cover and is electrically connected to the control board.

11. The electric hydraulic pump according to claim 10, characterized in that, The electric hydraulic pump also includes a fifth connector, which includes a fifth connecting part and a fifth plug-in part that are mutually plugged in. One of the fifth connecting part and the fifth plug-in part is located on the signal connector, and the other is located on the control board. The signal connector is electrically connected to the control board through the fifth connector.

12. The electric hydraulic pump according to claim 9, characterized in that, Along the axial direction of the motor shaft, the control module has a corresponding drive module, motor, pump and housing assembly on both sides, and the motors located on both sides of the control module are electrically connected to the same control module through the drive module.

13. An active hydraulic suspension, characterized in that, The active hydraulic suspension includes: Vibration damper; The electro-hydraulic pump according to any one of claims 1 to 12, wherein the electro-hydraulic pump is in fluid communication with the shock absorber.

14. A car, characterized in that, The vehicle includes the active hydraulic suspension as described in claim 13.

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