Electric hydraulic pump, active hydraulic suspension and vehicle

Abstract

The invention relates to the technical field of vehicles, in particular to an electric hydraulic pump, an active hydraulic suspension and a vehicle. The electric hydraulic pump comprises a pump set, a control panel, a capacitor and a power input module. The control panel is arranged on one side of the pump set in the radial direction of the pump set and electrically connected with the pump set. The capacitor is arranged on the side, away from the pump set, of the control panel and electrically connected with the control panel. The power input module is arranged on the side, away from the pump set, of the control panel and electrically connected with the capacitor. The control panel and the capacitor are arranged on one radial side of the pump set, so that the occupied axial space is reduced, overlong flat cables in the axial direction are reduced, the radial space of the pump set is fully utilized, the flat cables are shortened and simplified, and subsequent disassembly, assembly and maintenance are facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of vehicles, and particularly to an electric hydraulic pump, an active hydraulic suspension and a vehicle. Background Art

[0002] As a device that actively provides hydraulic energy to shock absorbers, an electric hydraulic pump, together with shock absorbers, solenoid valves, etc., constitutes three key components of an active hydraulic suspension system. Each wheel requires an independent electric hydraulic pump.

[0003] In related technologies, an electric hydraulic pump usually consists of a hydraulic pump, an electric motor and a motor controller, and these three components are arranged axially along the motor shaft. Since the motor controller needs to integrate a large number of electronic components, such as various electronic components for driving the start and stop of the motor and for detecting the performance of the motor, and some of the electronic components themselves are relatively large in size, the overall size of the entire electric hydraulic pump is relatively large, occupying a relatively large assembly space. Summary of the Invention

[0004] Based on this, it is necessary to provide an electric hydraulic pump that reduces the occupied axial space.

[0005] An electric hydraulic pump includes a pump group, a control board, a capacitor and the power input module; the control board is arranged on one side of the pump group along the radial direction of the pump group, and the control board is electrically connected to the pump group; the capacitor is arranged on the side of the control board facing away from the pump group, and the capacitor is electrically connected to the control board; the power input module is arranged on the side of the control board facing away from the pump group, and the power input module is electrically connected to the capacitor.

[0006] It can be understood that the power input module can be connected to an external power supply and input current to the capacitor. The capacitor conducts the current to the control board, and the control board inputs the current to the pump group to realize the energized operation of the pump group. The control board can also input a control signal to the pump group to adjust the operation of the pump group. Since the control board, the capacitor and the power input module are all arranged on one side of the pump group along the radial direction, it is beneficial to reduce the occupied axial space, reduce the overlong wiring in the axial direction, make full use of the space in the radial direction of the pump group, shorten and simplify the wiring, and facilitate subsequent disassembly, assembly and maintenance.

[0007] In one embodiment, the capacitor is spaced apart from the control board. The side of the capacitor facing the control board is provided with pins, and the pins are connected to the control board; the control board is provided with a transfer connector, and the transfer connector is electrically connected to the pins.

[0008] In one embodiment, the power input module includes a power connector and a filter board, and the filter board is electrically connected to the power connector and the capacitor respectively.

[0009] In one embodiment, the power connector is provided with insertion blades, the filter board is provided with insertion sockets, and the insertion blades are inserted into the insertion sockets; and / or, the control board and the filter board are spaced apart in a first direction, the capacitor is arranged on one side of the filter board in a second direction, and the first direction is perpendicular to the second direction.

[0010] In one embodiment, the electro-hydraulic pump includes a housing and a cover connected to each other, the pump set is arranged in the housing, and the control board and the capacitor are respectively arranged in the cover.

[0011] In one embodiment, the capacitor is provided with connection lugs, and the connection lugs and the cover are connected by locking members; and / or, a heat-conducting layer is provided between the capacitor and the cover; and / or, a heat-conducting layer is provided between the control board and the cover.

[0012] In one embodiment, a receiving cavity is provided on a surface of the cover facing the housing, and the capacitor is arranged in the receiving cavity.

[0013] In one embodiment, the cover is further provided with a first mounting hole communicating with the receiving cavity, the power input module includes a filter board and a power connector, the power connector and the capacitor are respectively electrically connected to the filter board, the capacitor and the filter board are respectively arranged in the receiving cavity, and one end of the power connector passes through the first mounting hole and is arranged in the receiving cavity; and / or, heat-radiating fins are provided on a surface of the cover facing away from the housing, the heat-radiating fins are arranged on one side of the receiving cavity along the axial direction of the pump set, and the heat-radiating fins are used for dissipating heat for the control board and / or the capacitor.

[0014] In one embodiment, the electro-hydraulic pump further includes a signal connector mounted on the cover, and the signal connector is electrically connected to the control board.

[0015] In one embodiment, the electro-hydraulic pump further includes a magnetic ring, and the magnetic ring is mounted on the signal connector; and / or, the cover is further provided with a second mounting hole communicating with the receiving cavity, and one end of the signal connector passes through the second mounting hole and is arranged in the receiving cavity.

[0016] In one embodiment, the electro-hydraulic pump further includes a first partition plate connected between the housing and the cover; wherein, the pump set is arranged on a side of the first partition plate facing the housing, and the control board is arranged on a side of the first partition plate facing away from the housing.

[0017] In one embodiment, the cover body, the first partition board and the housing are threadedly connected and locked by a locking member; and / or, the first partition board is provided with an avoidance hole, and the components on the control board can pass through the avoidance hole to be electrically connected to the pump set.

[0018] In one embodiment, the pump set includes at least two electric pump bodies, and at least two of the electric pump bodies are sequentially arranged at intervals along the axial direction of the pump set, and the control board is electrically connected to at least two of the electric pump bodies respectively.

[0019] The present application also provides an active hydraulic suspension, including a shock absorber and the above-mentioned electric hydraulic pump, and the electric hydraulic pump is connected to the shock absorber.

[0020] The present application further provides a vehicle, including a shock absorber and the above-mentioned electric hydraulic pump, and the electric hydraulic pump is connected to the shock absorber. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is an exploded view of the electric hydraulic pump provided by the present application;

[0023] Figure 2 It is a partial perspective view of the electric hydraulic pump provided by the present application;

[0024] Figure 3 It is a front view of the partial structure of the electric hydraulic pump provided by the present application;

[0025] Figure 4 It is an exploded view of a part of the structure in the electric hydraulic pump provided by the present application;

[0026] Figure 5 It is an exploded view of the capacitor and the filter board in the electric hydraulic pump provided by the present application;

[0027] Figure 6 It is a perspective view of the electric hydraulic pump provided by the present application;

[0028] Figure 7 It is a schematic structural diagram of the cover body in the electric hydraulic pump provided by the present application.

[0029] Reference Numerals: 100, electro-hydraulic pump; 10, pump unit; 11, electric pump body; 111, motor housing; 20, control board; 21, adapter connector; 201, third connection hole; 30, capacitor; 31, pin; 32, encapsulation housing; 321, connection ear; 3211, second connection hole; 322, mating projection; 3221, first assembly groove; 40, power input module; 41, power connector; 411, plug blade; 42, filter board; 421, socket; 422, connection projection; 4221, first connection hole; 51, housing; 511, fourth assembly groove; 52, cover; 521, receiving cavity; 522, first mounting hole; 523, second mounting hole; 524, fourth connection hole; 61, heat dissipation fin; 62, heat dissipation base; 70, signal connector; 71, signal transmission line; 80, magnetic ring; 91, first partition; 911, avoidance hole; 912, fifth connection hole; 92, second partition. Detailed Embodiment

[0030] In order to make the above objects, features, and advantages of the present application more apparent and understandable, the following will describe the detailed embodiment of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0031] It should be noted that when a component is referred to as "fixed to" or "provided on" or "disposed on" another component, it can be directly on the other component or there may also 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 at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of the present application are only for the purpose of illustration and do not represent the only implementation manner.

[0032] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0033] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first feature is in direct contact with the second feature, or the first feature is indirectly in contact with the second feature through an intermediate medium. Moreover, the first feature being "above", "over" or "on top of" the second feature may mean that the first feature is directly above or diagonally above the second feature, or it merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" or "underneath" the second feature may mean that the first feature is directly below or diagonally below the second feature, or it merely indicates that the first feature has a lower horizontal height than the second feature.

[0034] Unless otherwise defined, all technical and scientific terms used in the description of this application have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the description of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the description of this application includes any and all combinations of one or more of the related listed items.

[0035] Please refer to Figures 1 to 7 , this application provides an electro-hydraulic pump 100, which includes a pump unit 10. The pump unit 10 includes an electric pump body 11. The electric pump body 11 is provided with a motor and a pump body. The motor is provided with a motor shaft that is drivingly connected to the pump body to drive the pump body to operate, so as to realize the suction and discharge of hydraulic oil.

[0036] Furthermore, the electro-hydraulic pump 100 further includes a control board 20. The control board 20 is electrically connected to the pump unit 10, so that the control board 20 can input a control signal to the motor in the pump unit 10 to adjust the operation of the motor.

[0037] In the related art, devices such as pressure sensors are usually arranged at the pump body to detect the operating state of the pump body. The pressure sensor needs to be connected to the control board 20 by wires. Currently, since the end of the motor is relatively flat and the assembly is relatively simple, the control board 20 is usually arranged at the end of the motor facing away from the pump body. The connection between the control board 20 and the pressure sensor needs to span the entire motor, and the axial wire arrangement distance is long, making wire arrangement inconvenient.

[0038] Therefore, the control board 20 of this application is arranged on one side of the pump unit 10 along the radial direction of the pump unit 10, which is beneficial to reducing the occupation of the axial space of the electro-hydraulic pump 100. At the same time, it also shortens the axial wire arrangement, and the control board 20 is closer to devices such as the pressure sensor, making the connection more convenient.

[0039] Among them, the radial direction of the pump unit 10 is defined as the radial direction of the motor shaft, and the axial direction of the pump unit 10 is defined as the axial direction of the motor shaft.

[0040] In a specific embodiment, the control board 20 integrates a drive circuit, a drive device, a control circuit and a control device, the drive circuit is electrically connected to the drive device, the control circuit is electrically connected to the control device, and the drive circuit is electrically connected to the control circuit. In this way, the control board 20 integrates the functions of drive and control at the same time, can realize the drive and control of the motor at the same time, and is conducive to integrated and modular assembly and wiring. At the same time, the wiring operation between the drive device, the control device and other devices only needs to be performed on the control board 20, which shortens the distance and difficulty of wiring, reduces the complicated wiring, and facilitates subsequent disassembly, assembly and maintenance.

[0041] like Figures 1 to 4 As shown, further, the electric hydraulic pump 100 also includes a capacitor 30, which is electrically connected to the control board 20 to output current to the control board 20. The capacitor 30 is arranged on the side of the control board 20 away from the pump group 10 to further shorten the occupation of the axial space, and the distance between the capacitor 30 and the control board 20 is relatively close, which is conducive to simplifying the wiring.

[0042] like Figures 1 to 3 As shown, further, the electric hydraulic pump 100 also includes a power input module 40, which can be connected to an external power source to achieve power supply, and the power input module 40 is electrically connected to the capacitor 30 to input current to the capacitor 30. The power input module 40 is arranged on a side of the control board 20 away from the pump group 10 to further shorten the occupation of the axial space.

[0043] In summary, the present application reduces the occupied axial space and the excessively long axial wiring by arranging the control board 20, the capacitor 30 and the power input module 40 on the radial side of the pump group 10, and makes full use of the radial space of the pump group 10, shortens and simplifies the wiring, and facilitates subsequent disassembly, assembly and maintenance.

[0044] like Figures 1 to 4 As shown, in some embodiments, the power input module 40 includes a power connector 41 and a filter board 42. The power connector 41 is electrically connected to the filter board 42. The power connector 41 can be connected to an external power source and input the power signal to the filter board 42. The filter board 42 filters the power signal.

[0045] like Figure 3 and Figure 4 As shown, in a specific embodiment, the power connector 41 is provided with a blade 411, and the filter board 42 is provided with a socket 421, and the blade 411 is inserted into the socket 421 to achieve electrical connection. In this arrangement, the connection can be achieved by plugging and unplugging, and the operation is simple. In other embodiments, the power connector 41 and the filter board 42 can also achieve current conduction by wire connection or other methods.

[0046] In some embodiments, the capacitor 30 is electrically connected to the filter board 42 , and the capacitor 30 is screwed or welded to the filter board 42 to achieve relative fixation between the two.

[0047] like Figure 5 As shown, in a specific embodiment, the capacitor 30 is provided with a packaging shell 32, the packaging shell 32 is made of insulating material, and the interior of the packaging shell 32 contains a capacitor element. The filter plate 42 is provided with a connecting protrusion 422 protruding outward, and the packaging shell 32 is correspondingly provided with a matching protrusion 322, and the connecting protrusion 422 and the matching protrusion 322 are threadedly connected and locked by a locking member. Specifically, the connecting protrusion 422 is provided with a first connecting hole 4221, and the matching protrusion 322 is provided with a corresponding first assembly groove 3221. The locking member is penetrated through the first connecting hole 4221 and the first assembly groove 3221 and is threadedly connected with the groove wall of the first assembly groove 3221 to achieve locking between the connecting protrusion 422 and the matching protrusion 322. Exemplarily, the locking member can be set as a screw.

[0048] like Figure 2 and Figure 3 As shown, in some embodiments, the control board 20 and the filter board 42 are spaced apart along the first direction, and the capacitor 30 is arranged on one side of the filter board 42 along the second direction. In this way, the control board 20 and the capacitor 30 are both at a short distance from the filter board 42, which facilitates the connection of the circuit.

[0049] The first direction is perpendicular to the second direction, and the first direction and the second direction are radial directions of the pump assembly 10 respectively.

[0050] like Figures 1 to 5 As shown, in some embodiments, the capacitor 30 is spaced apart from the control board 20, and a pin 31 is provided on one side of the capacitor 30 facing the control board 20, and the pin 31 is connected to the control board 20. In this way, the pin 31 has an auxiliary support function for the capacitor 30, and at the same time, the capacitor 30 is electrically connected to the control board 20 through the pin 31, which is easy to operate. Exemplarily, the pin 31 is welded to the control board 20.

[0051] like Figure 2 and Figure 3 As shown, in some embodiments, the control board 20 is provided with a transfer connector 21, and the transfer connector 21 is electrically connected to the pin 31, so that the capacitor 30 can deliver current to multiple components on the control board 20. Exemplarily, the transfer connector 21 and the pin 31 are connected by a wire.

[0052] like Figure 1 , Figure 2 , Figure 6 and Figure 7As shown, in some embodiments, the electro-hydraulic pump 100 includes a connected housing 51 and a cover 52. The pump unit 10 is disposed within the housing 51, and the control board 20 and the capacitor 30 are respectively disposed within the cover 52. The housing 51 and the cover 52 are provided to support and structurally protect the pump unit 10, the control board 20, and the capacitor 30. The control board 20 and the capacitor 30 are respectively disposed within the cover 52 to facilitate integration with the cover 52. During assembly, the control board 20 and the capacitor 30 can be respectively connected to the cover 52 first, and then the entire connected cover 52 can be assembled with the housing 51, which is conducive to improving the assembly efficiency.

[0053] As Figure 7 shown, specifically, a receiving cavity 521 is provided on a side of the cover 52 facing the housing 51, and the capacitor 30 is disposed within the receiving cavity 521 to protect the capacitor 30.

[0054] As Figure 5 shown, in an alternative embodiment, the capacitor 30 is provided with a connection ear 321. The connection ear 321 and the cover 52 are connected by a locking member, which is simple to operate and convenient to disassemble and assemble. Specifically, the connection ear 321 is disposed on the encapsulation shell 32. The connection ear 321 is provided with a second connection hole 3211, and the cover 52 is provided with a second assembly groove. The locking member passes through the second connection hole 3211 and the second assembly groove, and the locking member is connected to the groove wall of the second assembly groove and presses against the end face of the connection ear 321 to lock the connection ear 321 and the cover 52. Exemplarily, the locking member is set as a screw.

[0055] In a specific embodiment, a heat-conducting layer is provided between the capacitor 30 and the cover 52. The heat-conducting layer can absorb the heat of the capacitor 30 and release it to the outside through the cover 52 to dissipate the heat of the capacitor 30, which is conducive to the long-term stable operation of the capacitor 30. Exemplarily, the heat-conducting layer can be set as a heat-conducting adhesive, a heat-conducting pad, etc.

[0056] As Figure 2 shown, in an alternative embodiment, the control board 20 and the cover 52 are connected by a locking member, which is simple to operate and convenient to disassemble and assemble. Specifically, the control board 20 is provided with a third connection hole 201, and the cover 52 is provided with a third assembly groove. The locking member passes through the third connection hole 201 and the third assembly groove, and the locking member is threadedly connected to the groove wall of the third assembly groove and presses against the surface of the control board 20 to lock the control board 20 and the cover 52.

[0057] In a specific embodiment, a heat-conducting layer is provided between the components on the control board 20 and the cover 52. The heat-conducting layer can absorb the heat of the control board 20 and release it to the outside through the cover 52 to dissipate the heat of the control board 20, which is conducive to the long-term stable operation of the control board 20. Exemplarily, the heat-conducting layer can be set as a heat-conducting adhesive, a heat-conducting pad, etc.

[0058] Based on the above-mentioned assembly of the capacitor 30 and the control board 20 relative to the cover body 52 respectively, the capacitor 30, the control board 20 and the cover body 52 can be integrated into one body. When assembling the electro-hydraulic pump 100, the capacitor 30 and the control board 20 can be connected to the cover body 52 respectively first, and then the entire cover body 52 can be connected to the housing 51, which is beneficial to improving the assembly efficiency.

[0059] As Figure 1 shown, in an optional embodiment, the cover body 52 is further provided with a first mounting hole 522 communicating with the accommodation cavity 521. One end of the power connector 41 passes through the first mounting hole 522 and is arranged in the accommodation cavity 521 to be connected to the filter board 42. The setting of the first mounting hole 522 is beneficial to form a limitation and fixation for the power connector 41, facilitating assembly.

[0060] As Figures 1 to 4 shown, the electro-hydraulic pump 100 further includes a signal connector 70 mounted on the cover body 52. The signal connector 70 is electrically connected to the control board 20, and the signal connector 70 can transmit signals and feedback information to the control board 20 in real time to achieve precise and efficient control.

[0061] In a specific embodiment, the signal connector 70 is electrically connected to the control board 20 through a signal transmission line 71 to achieve a relatively long-distance connection. In other embodiments, the signal connector 70 can also be connected to the control board 20 by plugging or other means.

[0062] As Figures 1 to 4 shown, in a specific embodiment, the electro-hydraulic pump 100 further includes a magnetic ring 80. The magnetic ring 80 is mounted on the signal connector 70 and can reduce signal interference and promote the precise transmission of signals of the signal connector 70. Exemplarily, the magnetic ring 80 is plugged and connected to the signal connector 70; or, the magnetic ring 80 is sleeved outside the signal transmission line 71.

[0063] As Figure 1 shown, in a specific embodiment, the cover body 52 is further provided with a second mounting hole 523 communicating with the accommodation cavity 521. One end of the signal connector 70 passes through the second mounting hole 523 and is arranged in the accommodation cavity 521 to be electrically connected to the control board 20. The hole wall of the second mounting hole 523 has a limiting and supporting effect on the signal connector 70, which is beneficial to the rapid assembly and fixation of the signal connector 70.

[0064] In some embodiments, the electro-hydraulic pump 100 further includes a shielding layer. The shielding layer is covered between the signal connector 70 and the control board 20 to reduce signal interference between the components on the signal connector 70 and the control board 20; the shielding layer can also be covered between the filter board 42 and the control board 20 to reduce signal interference between the components on the filter board 42 and the control board 20.

[0065] In some embodiments, along the first direction, components are arranged on both sides of the capacitor 30 on the control board 20, which is conducive to routing the wires of the capacitor 30 to both sides, and the wire routing is regular.

[0066] Such as Figure 1 , Figure 6 and Figure 7 As shown, in a further embodiment, heat dissipation fins 61 are provided on a surface of the cover body 52 facing away from the housing 51. The heat dissipation fins 61 are arranged along the axial direction of the pump unit 10 on one side of the accommodation cavity 521. The heat dissipation fins 61 are used to dissipate heat for the control board 20 and / or the capacitor 30. The provision of the heat dissipation fins 61 can increase the contact area with the external air and improve the heat dissipation effect.

[0067] Furthermore, a heat dissipation base 62 connected to the heat dissipation fins 61 is provided inside the cover body 52. The heat dissipation base 62 is attached to the heat generating components on the control board 20, absorbs the heat of the heat generating components and dissipates the heat outward through the heat dissipation fins 61. By effectively dissipating the heat of the heat generating components, it is conducive to the long-term stable operation of the control board 20.

[0068] In some embodiments, both the heat dissipation fins 61 and the heat dissipation base 62 are integrally formed with the cover body 52, which is conducive to simplifying the installation.

[0069] Such as Figure 1 and Figure 3 , in some embodiments, the electro-hydraulic pump 100 further includes a first partition plate 91. The first partition plate 91 is connected between the housing 51 and the cover body 52 to separate the space of the housing 51 and the space of the cover body 52. Among them, the pump unit 10 is arranged on one side of the first partition plate 91 facing the housing 51, and the control board 20 is arranged on the side of the first partition plate 91 facing away from the housing 51. With this arrangement, the interference between the pump unit 10 and the control board 20 can be reduced. When there is an assembly looseness, the parts in the pump unit 10 will not fall into the space of the cover body 52, and the parts in the cover body 52 will not fall into the space of the housing 51, which is conducive to the protection of the structure.

[0070] Such as Figure 1 As shown, in a specific embodiment, the first partition plate 91 is provided with an avoidance hole 911, and the components on the control board 20 can pass through the avoidance hole 911 to be electrically connected to the pump unit 10, which is convenient for wire routing.

[0071] Such as Figure 1As shown, in a specific embodiment, the cover body 52, the first partition plate 91 and the shell 51 are connected by a locking member, which is simple to operate and convenient to disassemble and assemble. Specifically, the cover body 52 is provided with a fourth connecting hole 524, the first partition plate 91 is provided with a fifth connecting hole 912, and the shell 51 is provided with a fourth assembly groove 511. The locking member is penetrated through the fourth connecting hole 524, the fifth connecting hole 912 and the fourth assembly groove 511. The locking member is threadedly connected to the groove wall of the fourth assembly groove 511 and is pressed on the surface of the cover body 52 to achieve locking of the cover body 52, the first partition plate 91 and the shell 51. Exemplarily, the locking member is set as a screw.

[0072] In a specific embodiment, a first glue groove is provided on the shell 51 facing the cover 52 for filling with glue, and the first partition 91 is pressed on the shell 51 and has glue between it and the shell 51 to achieve glue fixation.

[0073] As shown in the figure, Figure 2 and Figure 6 As shown, in some embodiments, the pump group 10 includes at least two electric pump bodies 11, and the at least two electric pump bodies 11 are sequentially spaced along the axial direction of the pump group 10. In this way, at least two electric pump bodies 11 can operate simultaneously to output to the outside at the same time, thereby improving work efficiency.

[0074] Furthermore, the control board 20 is electrically connected to at least two electric pump bodies 11 respectively. In this way, the two electric pump bodies 11 are controlled by one control board 20, and the control components for controlling at least two electric pump bodies 11 are integrated on one control board 20, and there is no need to set up multiple control boards 20 additionally. During assembly, only one control board 20 needs to be assembled, and there is no need to install it multiple times, which is beneficial to improving assembly efficiency. When electrically connecting with the capacitor 30, only one connection is required, and there is no need to repeatedly connect with the capacitor 30, which is beneficial to reducing lines and simplifying wiring. At the same time, the capacitor 30 only needs to integrate at least two capacitor elements in the same packaging shell 32, and there is no need to additionally set up multiple capacitor elements separated by intervals to correspond one to one with multiple control boards 20, which reduces space occupation.

[0075] like Figure 1 As shown, in some embodiments, in each electric pump body 11, a second partition plate 92 is provided at one end of the motor away from the pump body along the axial direction of the motor shaft. The setting of the second partition plate 92 is conducive to separating the electric pump body 11 from other electric pump bodies 11, thereby avoiding mutual interference between at least two electric pump bodies 11.

[0076] like Figure 1As shown, in a specific embodiment, the electric pump body 11 is provided with a motor housing 111, and a motor is installed inside the motor housing 111. The motor housing 51 is provided with a second glue groove at one end axially away from the pump body along the motor shaft for filling with colloid, and the second partition plate 92 is bonded and fixed to the motor housing 111 by the colloid.

[0077] Another embodiment of the present application provides an active hydraulic suspension, including a shock absorber and the above-mentioned electric hydraulic pump 100, and the electric hydraulic pump 100 is connected to the shock absorber. The electric hydraulic pump 100 is used to provide active vibration reduction control for the shock absorber, thereby improving the vibration reduction effect of the active hydraulic suspension. Among them, the active hydraulic suspension also includes a suspension body, and the above-mentioned electric hydraulic pump 100 and shock absorber are both connected to the suspension body.

[0078] Another embodiment of the present application provides a car, including a shock absorber and the above-mentioned electric hydraulic pump 100, the electric hydraulic pump 100 is connected to the shock absorber, which can reduce the impact transmitted to the wheels due to road bumps during the operation of the car, thereby improving the stability and comfort of the car during driving.

[0079] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0080] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. An electric hydraulic pump, characterized in that: include: Pump sets; A control board, arranged at one side of the pump group along the radial direction of the pump group, the control board and the pump group being electrically connected; A capacitor is arranged on a side of the control board away from the pump group, and the capacitor is electrically connected to the control board; A power input module is arranged on a side of the control board away from the pump group, and the power input module is electrically connected to the capacitor.

2. The electric hydraulic pump according to claim 1, characterized in that: The capacitor is spaced apart from the control board, a pin is provided on a side of the capacitor facing the control board, and the pin is connected to the control board; The control board is provided with a transfer connector, and the transfer connector is electrically connected to the pins.

3. The electric hydraulic pump according to claim 1, characterized in that: The power input module includes a power connector and a filter board, and the filter board is electrically connected to the power connector and the capacitor respectively.

4. The electric hydraulic pump according to claim 3, characterized in that: The power connector is provided with a blade, the filter board is provided with a socket, and the blade is plugged into the socket; and / or, The control board and the filter board are arranged at intervals along a first direction, the capacitor is arranged on one side of the filter board along a second direction, and the first direction is perpendicular to the second direction.

5. The electric hydraulic pump according to claim 1, characterized in that: The electric hydraulic pump comprises a housing and a cover body connected to each other, the pump group is arranged in the housing, and the control board and the capacitor are respectively arranged in the cover body.

6. The electric hydraulic pump according to claim 5, characterized in that: The capacitor is provided with a connecting ear, and the connecting ear and the cover are connected via a locking piece; and / or, A heat conducting layer is provided between the capacitor and the cover; and / or, A heat conducting layer is provided between the control board and the cover body.

7. The electric hydraulic pump according to claim 5, characterized in that: A receiving cavity is provided on a side of the cover body facing the shell, and the capacitor is arranged in the receiving cavity.

8. The electric hydraulic pump according to claim 7, characterized in that: The cover body is further provided with a first mounting hole communicating with the accommodating cavity, the power input module comprises a filter board and a power connector, the power connector and the capacitor are electrically connected to the filter board respectively, the capacitor and the filter board are respectively arranged in the accommodating cavity, one end of the power connector is passed through the first mounting hole and is arranged in the accommodating cavity; and / or, A side of the cover body facing away from the shell is provided with a heat dissipation fin, and the heat dissipation fin is arranged on one side of the accommodating cavity along the axial direction of the pump group, and the heat dissipation fin is used to dissipate heat for the control board and / or the capacitor.

9. The electric hydraulic pump according to claim 7, characterized in that: The electric hydraulic pump further includes a signal connector mounted on the cover body, and the signal connector is electrically connected to the control board.

10. The electric hydraulic pump according to claim 9, characterized in that: The electric hydraulic pump further comprises a magnetic ring, wherein the magnetic ring is mounted on the signal connector; and / or, The cover body is further provided with a second mounting hole communicated with the accommodating cavity, and one end of the signal connector is passed through the second mounting hole and is arranged in the accommodating cavity.

11. The electric hydraulic pump according to any one of claims 5 to 10, characterized in that: The electric hydraulic pump further includes a first partition plate connected between the housing and the cover; Wherein, the pump group is arranged on a side of the first partition plate facing the shell, and the control board is arranged on a side of the first partition plate facing away from the shell.

12. The electric hydraulic pump according to claim 11, characterized in that: The cover, the first partition and the shell are connected by a locking member; and / or, The first partition is provided with an avoidance hole, and the components on the control board can pass through the avoidance hole to be electrically connected to the pump group.

13. The electric hydraulic pump according to any one of claims 1 to 10, characterized in that: The pump group includes at least two electric pump bodies, and the at least two electric pump bodies are arranged in sequence and spaced apart along the axial direction of the pump group. The control board is electrically connected to the at least two electric pump bodies respectively.

14. An active hydraulic suspension, characterized in that: The active hydraulic suspension comprises: Shock absorbers; The electric hydraulic pump according to any one of claims 1 to 13, wherein the electric hydraulic pump is connected to the shock absorber.

15. A vehicle, characterized in that: The vehicle comprises: Shock absorbers; The electric hydraulic pump according to any one of claims 1 to 13, wherein the electric hydraulic pump is connected to the shock absorber.

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