Electric hydraulic pump, active hydraulic suspension and vehicle

Abstract

The utility model 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] This application relates to the field of vehicle technology, and in particular to an electric hydraulic pump, an active hydraulic suspension, and a vehicle. Background Technology

[0002] An electro-hydraulic pump, as a device that actively provides hydraulic energy to shock absorbers, along with shock absorbers and solenoid valves, constitutes the three key components of an active hydraulic suspension system. Each wheel requires an independent electro-hydraulic pump.

[0003] In related technologies, an electric hydraulic pump typically consists of three components: a hydraulic pump, a motor, and a motor controller, all arranged axially along the motor shaft. Because the motor controller needs to integrate numerous electronic components—such as those for starting and stopping the motor and for detecting motor performance—and some of these components are quite large, the overall size of the electric hydraulic pump is relatively large, requiring significant assembly space. Utility Model Content

[0004] Therefore, it is necessary to provide an electric hydraulic pump that reduces the axial space required.

[0005] An electric hydraulic pump includes a pump assembly, a control board, a capacitor, and a power input module; the control board is disposed radially on one side of the pump assembly and is electrically connected to the pump assembly; the capacitor is disposed on the side of the control board away from the pump assembly and is electrically connected to the control board; the power input module is disposed on the side of the control board away from the pump assembly and is electrically connected to the capacitor.

[0006] Understandably, the power input module connects to an external power source and inputs current to a capacitor. The capacitor then conducts the current to the control board, which in turn inputs the current to the pump unit, enabling it to operate. The control board can also input control signals to the pump unit to regulate its operation. Since the control board, capacitor, and other components are all located on one radial side of the pump unit, this reduces the axial space required, minimizes excessively long axial cables, and fully utilizes the radial space of the pump unit, simplifying and shortening the cabling, thus facilitating subsequent disassembly, assembly, and maintenance.

[0007] In one embodiment, the capacitor is spaced apart from the control board, and the side of the capacitor facing the control board has pins that are connected to the control board; the control board has an adapter connector that is electrically connected to the pins.

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

[0009] In one embodiment, the power connector is provided with a blade, the filter board is provided with a socket, and the blade is inserted into the socket; and / or, the control board and the filter board are spaced apart along a first direction, and the capacitor is disposed on one side of the filter board along a second direction, wherein the first direction is perpendicular to the second direction.

[0010] In one embodiment, the electric hydraulic pump includes a housing and a cover connected together, the pump assembly is disposed within the housing, and the control board and the capacitor are respectively disposed within the cover.

[0011] In one embodiment, the capacitor is provided with a connecting lug, and the connecting lug and the cover are connected by a locking member; 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, the cover has a receiving cavity on the side facing the housing, and the capacitor is disposed in the receiving cavity.

[0013] In one embodiment, the cover further has 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 electrically connected to the filter board, and the capacitor and the filter board are respectively disposed in the receiving cavity. One end of the power connector passes through the first mounting hole and is disposed in the receiving cavity. And / or, the side of the cover away from the housing is provided with heat dissipation fins. The heat dissipation fins are disposed along the axial direction of the pump group on one side of the receiving cavity. The heat dissipation fins are used to dissipate heat for the control board and / or the capacitor.

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

[0015] In one embodiment, the electric hydraulic pump further includes a magnetic ring mounted on the signal connector; and / or, the cover body is further provided with a second mounting hole communicating with the receiving cavity, one end of the signal connector passing through the second mounting hole and disposed within the receiving cavity.

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

[0017] In one embodiment, the cover, the first partition, and the housing are threaded together and locked by a locking member; and / or, the first partition is provided with a clearance hole through which components on the control board can pass and be electrically connected to the pump assembly.

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

[0019] This application also provides an active hydraulic suspension, including a shock absorber and the aforementioned electro-hydraulic pump, the electro-hydraulic pump being connected to the shock absorber.

[0020] This application also provides an automobile, including a shock absorber and the aforementioned electro-hydraulic pump, the electro-hydraulic pump being connected to the shock absorber. Attached Figure Description

[0021] 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.

[0022] Figure 1 Exploded view of the electro-hydraulic pump provided in this application;

[0023] Figure 2 A partial perspective view of the electric hydraulic pump provided in this application;

[0024] Figure 3 A front view of a partial structure of the electric hydraulic pump provided in this application;

[0025] Figure 4 An exploded view of a portion of the structure of the electric hydraulic pump provided in this application;

[0026] Figure 5 An exploded view of the capacitor and filter plate in the electric hydraulic pump provided in this application;

[0027] Figure 6 A perspective view of the electric hydraulic pump provided in this application;

[0028] Figure 7 This is a schematic diagram of the structure of the cover body in the electric hydraulic pump provided in this application.

[0029] Reference numerals: 100, electric hydraulic pump; 10, pump assembly; 11, electric pump body; 111, motor housing; 20, control board; 21, adapter connector; 201, third connection hole; 30, capacitor; 31, pin; 32, package shell; 321, connecting ear; 3211, second connection hole; 322, mating protrusion; 3221, first mounting slot; 40, power input module; 41, power connector; 411, insert; 42, filter board; 421. 422. Connecting protrusion; 4221. First connecting hole; 51. Housing; 511. Fourth assembly slot; 52. Cover; 521. Receiving cavity; 522. First mounting hole; 523. Second mounting hole; 524. Fourth connecting hole; 61. Heat dissipation fins; 62. Heat dissipation base; 70. Signal connector; 71. Signal transmission line; 80. Magnetic ring; 91. First partition; 911. Clearance hole; 912. Fifth connecting hole; 92. Second partition. Detailed Implementation

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] Please see Figures 1 to 7 This application provides an electric hydraulic pump 100, which includes a pump set 10, the pump set 10 including 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 and is driven to drive the pump body to run, so as to realize the intake and discharge of oil.

[0036] Furthermore, the electric hydraulic pump 100 also includes a control board 20, which is electrically connected to the pump assembly 10 so that the control board 20 can input control signals to the motor in the pump assembly 10 to regulate the operation of the motor.

[0037] In related technologies, pressure sensors and other devices are typically installed on the pump body to detect the pump's operating status. The pressure sensor needs to be connected to the control board 20 via wiring. Currently, because the end of the motor is relatively flat and assembly is simple, the control board 20 is usually located at the end of the motor away from the pump body. The connection between the control board 20 and the pressure sensor needs to span the entire motor, resulting in a long axial wiring distance and inconvenient wiring.

[0038] Therefore, the control board 20 of this application is located on one side of the pump group 10 along the radial direction of the pump group 10, which helps to reduce the axial space occupied by the electric hydraulic pump 100, and also shortens the axial wiring. The control board 20 is closer to the pressure sensor and other devices, and the connection is simpler.

[0039] 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, drive devices, a control circuit, and a controller. The drive circuit is electrically connected to the drive devices, the control circuit is electrically connected to the controller, and the drive circuit and control circuit are electrically connected. This configuration allows the control board 20 to integrate both drive and control functions, enabling simultaneous drive and control of the motor, and facilitating integrated and modular assembly and wiring. Furthermore, wiring between the drive devices, controllers, and other components can be performed solely on the control board 20, reducing wiring distance and complexity, minimizing cumbersome wiring, and simplifying subsequent disassembly, assembly, and maintenance.

[0041] like Figures 1 to 4 As shown, the electric hydraulic pump 100 further 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 located on the side of the control board 20 away from the pump assembly 10 to further reduce the axial space occupied, and the distance between the capacitor 30 and the control board 20 is relatively close, which helps to simplify the wiring.

[0042] like Figures 1 to 3 As shown, the electric hydraulic pump 100 further includes a power input module 40, which can be connected to an external power source to enable power supply. 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 located on the side of the control board 20 away from the pump assembly 10 to further reduce the axial space occupied.

[0043] In summary, by placing the control board 20, capacitor 30, and power input module 40 on one radial side of the pump set 10, this application reduces the axial space occupied, reduces excessively long axial cables, and makes full use of the radial space of the pump set 10, shortening and simplifying the cables, which 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 a 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 insert 411, and the filter board 42 is provided with a socket 421. The insert 411 is inserted into the socket 421 to achieve electrical connection. This arrangement allows for connection simply by plugging and unplugging, making operation simple. In other embodiments, the power connector 41 and the filter board 42 can also achieve current conduction through wire connection or other means.

[0046] In some embodiments, capacitor 30 is electrically connected to filter plate 42, and capacitor 30 is screwed or welded to filter plate 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 package shell 32, which is made of insulating material, and the capacitor element is housed inside the package shell 32. The filter plate 42 has a connecting protrusion 422 protruding outward, and the package shell 32 has a corresponding mating protrusion 322. The connecting protrusion 422 and the mating protrusion 322 are threadedly connected and locked by a locking member. Specifically, the connecting protrusion 422 has a first connecting hole 4221, and the mating protrusion 322 has a corresponding first mounting groove 3221. The locking member passes through the first connecting hole 4221 and the first mounting groove 3221 and is threadedly connected to the groove wall of the first mounting groove 3221 to achieve locking between the connecting protrusion 422 and the mating protrusion 322. For example, the locking member can be 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 a first direction, and the capacitor 30 is disposed on one side of the filter board 42 along a second direction. This arrangement ensures that the control board 20 and the capacitor 30 are both close to the filter board 42, facilitating circuit connection.

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

[0050] like Figures 1 to 5 As shown, in some embodiments, capacitor 30 is spaced apart from control board 20, and the side of capacitor 30 facing control board 20 has pins 31, which are connected to control board 20. This arrangement provides auxiliary support for capacitor 30, while also enabling electrical connection between capacitor 30 and control board 20 via pins 31, simplifying operation. For example, pins 31 are soldered to control board 20.

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

[0052] like Figure 1 , Figure 2 , Figure 6 and Figure 7As shown, in some embodiments, the electric hydraulic pump 100 includes a housing 51 and a cover 52 connected together. The pump assembly 10 is disposed within the housing 51, and the control board 20 and capacitor 30 are respectively disposed within the cover 52. The housing 51 and cover 52 provide support and structural protection for the pump assembly 10, control board 20, and capacitor 30. The control board 20 and capacitor 30 are respectively disposed within the cover 52 to facilitate integration with the cover 52. During assembly, the control board 20 and capacitor 30 can be connected to the cover 52 first, and then the entire cover 52 after connection can be assembled with the housing 51, which improves assembly efficiency.

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

[0054] like Figure 5 As shown, in an optional embodiment, the capacitor 30 is provided with a connecting ear 321, which is connected to the cover 52 by a locking member, making operation simple and disassembly convenient. Specifically, the connecting ear 321 is provided on the encapsulation shell 32. The connecting ear 321 is provided with a second connecting hole 3211, and the cover 52 is provided with a second mounting groove; the locking member passes through the second connecting hole 3211 and the second mounting groove, and the locking member is connected to the groove wall of the second mounting groove and pressed against the end face of the connecting ear 321 to lock the connecting ear 321 and the cover 52. For example, 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, thereby achieving heat dissipation of the capacitor 30 and facilitating the long-term stable operation of the capacitor 30. For example, the heat-conducting layer can be set as thermally conductive adhesive, thermally conductive pad, etc.

[0056] like Figure 2 As shown, in an optional embodiment, the control plate 20 and the cover 52 are connected by a locking member, which is simple to operate and convenient to assemble and disassemble. Specifically, the control plate 20 is provided with a third connecting hole 201, and the cover 52 is provided with a third mounting groove. The locking member passes through the third connecting hole 201 and the third mounting groove. The locking member is threadedly connected to the groove wall of the third mounting groove and pressed against the surface of the control plate 20 to achieve locking between the control plate 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 achieve heat dissipation of the control board 20, which is beneficial to the long-term stable operation of the control board 20. For example, the heat-conducting layer can be set as thermally conductive adhesive, thermally conductive pad, etc.

[0058] Based on the assembly of capacitor 30 and control board 20 relative to cover 52, capacitor 30, control board 20 and cover 52 can be integrated into one unit. When assembling electric hydraulic pump 100, capacitor 30 and control board 20 can be connected to cover 52 first, and then the entire cover 52 can be connected to housing 51, which helps to improve assembly efficiency.

[0059] like Figure 1 As shown, in an optional embodiment, the cover 52 is further provided with a first mounting hole 522 communicating with the receiving cavity 521. One end of the power connector 41 passes through the first mounting hole 522 and is disposed within the receiving cavity 521 to connect with the filter plate 42. The first mounting hole 522 facilitates the limitation and fixation of the power connector 41, making assembly convenient.

[0060] like Figures 1 to 4 As shown, the electric hydraulic pump 100 also includes a signal connector 70 installed on the cover 52. The signal connector 70 is electrically connected to the control board 20. 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 via the signal transmission line 71 to achieve a connection over a longer distance. In other embodiments, the signal connector 70 can also be connected to the control board 20 via a plug-in connection or other means.

[0062] like Figures 1 to 4 As shown, in a specific embodiment, the electric hydraulic pump 100 further includes a magnetic ring 80, which is mounted on the signal connector 70 to reduce signal interference and promote accurate signal transmission from the signal connector 70. For example, the magnetic ring 80 is plugged into the signal connector 70; or, the magnetic ring 80 is sleeved on the signal transmission line 71.

[0063] like Figure 1 As shown, in a specific embodiment, the cover 52 is further provided with a second mounting hole 523 communicating with the receiving cavity 521. One end of the signal connector 70 passes through the second mounting hole 523 and is disposed in the receiving cavity 521 for electrical connection with the control board 20. The wall of the second mounting hole 523 has a limiting and supporting function for the signal connector 70, which facilitates the quick assembly and fixation of the signal connector 70.

[0064] In some embodiments, the electric hydraulic pump 100 further includes a shielding layer disposed between the signal connector 70 and the control board 20 to reduce signal interference between the signal connector 70 and the components on the control board 20; the shielding layer may also be disposed between the filter board 42 and the control board 20 to reduce signal interference between the filter board 42 and the components on the control board 20.

[0065] In some embodiments, along the first direction, the control board 20 has components arranged on both sides of the capacitor 30, which facilitates the wiring of the capacitor 30 to both sides in a regular manner.

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

[0067] Furthermore, the cover 52 is provided with a heat dissipation base 62 connected to the heat dissipation fins 61. The heat dissipation base 62 is attached to the heating element on the control board 20, absorbs the heat of the heating element and dissipates the heat outward through the heat dissipation fins 61. Through effective heat dissipation of the heating element, the control board 20 can operate stably for a long time.

[0068] In some embodiments, the heat dissipation fins 61 and the heat dissipation base 62 are integrally formed with the cover 52, which facilitates simplified installation.

[0069] like Figure 1 and Figure 3 In some embodiments, the electric hydraulic pump 100 further includes a first partition 91, which connects the housing 51 and the cover 52 to separate the space of the housing 51 and the space of the cover 52. The pump assembly 10 is disposed on the side of the first partition 91 facing the housing 51, and the control plate 20 is disposed on the side of the first partition 91 away from the housing 51. This arrangement reduces interference between the pump assembly 10 and the control plate 20, preventing parts in the pump assembly 10 from falling into the space of the cover 52, and parts in the cover 52 from falling into the space of the housing 51, thus providing structural protection.

[0070] like Figure 1 As shown, in a specific embodiment, the first partition 91 is provided with a clearance hole 911, through which the components on the control board 20 can pass and be electrically connected to the pump group 10, facilitating wiring.

[0071] like Figure 1As shown, in a specific embodiment, the cover 52, the first partition 91, and the housing 51 are connected by a locking member, which is simple to operate and convenient to assemble and disassemble. Specifically, the cover 52 is provided with a fourth connecting hole 524, the first partition 91 is provided with a fifth connecting hole 912, and the housing 51 is provided with a fourth mounting groove 511. The locking member passes through the fourth connecting hole 524, the fifth connecting hole 912, and the fourth mounting groove 511. The locking member is threadedly connected to the groove wall of the fourth mounting groove 511 and pressed against the surface of the cover 52 to lock the cover 52, the first partition 91, and the housing 51. For example, the locking member is a screw.

[0072] In a specific embodiment, the housing 51 is provided with a first adhesive groove facing the cover 52 for filling with adhesive, and the first partition 91 is pressed onto the housing 51 and there is adhesive between the partition 51 and the housing 51 to achieve adhesive bonding and fixation.

[0073] As shown in the figure Figure 2 and Figure 6 As shown, in some embodiments, the pump assembly 10 includes at least two electric pump bodies 11, which are arranged sequentially at intervals along the axial direction of the pump assembly 10. Thus, the at least two electric pump bodies 11 can operate simultaneously to output power at the same time, improving work efficiency.

[0074] Furthermore, the control board 20 is electrically connected to at least two electric pump bodies 11. Thus, both electric pump bodies 11 are controlled by a single control board 20, integrating the control devices for at least two electric pump bodies 11 onto a single control board 20, eliminating the need for multiple additional control boards 20. During assembly, only one control board 20 needs to be assembled, eliminating the need for multiple installations and improving assembly efficiency. Similarly, when electrically connecting to the capacitor 30, only a single connection is required, eliminating the need for repeated connections and reducing wiring complexity. Simultaneously, the capacitor 30 only requires the integration of at least two capacitor elements within the same package 32, eliminating the need for multiple spaced-apart capacitor elements corresponding to multiple control boards 20, thus reducing space requirements.

[0075] like Figure 1 As shown, in some embodiments, in each electric pump body 11, along the motor shaft axis, a second partition 92 is provided at the end of the motor away from the pump body. The arrangement of the second partition 92 is beneficial to separate the electric pump body 11 from other electric pump bodies 11, so as to avoid 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 away from the pump body along the axial direction of the motor shaft for filling glue. The second partition 92 is bonded and fixed to the motor housing 111 by the glue.

[0077] Another embodiment of this application provides an active hydraulic suspension, including a shock absorber and the aforementioned electro-hydraulic pump 100, the electro-hydraulic pump 100 being connected to the shock absorber. The electro-hydraulic pump 100 provides active damping control for the shock absorber, improving the 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.

[0078] Another embodiment of this application provides an automobile, including a shock absorber and the aforementioned electric hydraulic pump 100. The electric hydraulic pump 100 is connected to the shock absorber and can reduce the impact transmitted to the wheels due to road bumps during the operation of the automobile, thereby improving the stability and comfort of the automobile when driving.

[0079] 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.

[0080] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are 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 set; A control board is disposed on one side of the pump set along the radial direction of the pump set, and the control board is electrically connected to the pump set; A capacitor is located on the 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 located on the side of the control board away from the pump unit, 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, and the side of the capacitor facing the control board has pins, which are connected to the control board. The control board is equipped with an adapter connector, which is electrically connected to the pin.

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 insert, the filter board is provided with a socket, and the insert is inserted into the socket; and / or, The control board and the filter board are spaced apart along a first direction, and the capacitor is disposed on one side of the filter board along a second direction, wherein 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 includes a housing and a cover connected to each other. The pump assembly is disposed inside the housing, and the control board and the capacitor are respectively disposed inside the cover.

6. The electric hydraulic pump according to claim 5, characterized in that, The capacitor is provided with a connecting lug, and the connecting lug and the cover are connected by a locking member; 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 panel and the cover.

7. The electric hydraulic pump according to claim 5, characterized in that, The cover has a receiving cavity on the side facing the housing, and the capacitor is disposed in the receiving cavity.

8. The electric hydraulic pump according to claim 7, characterized in that, The cover also has 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 electrically connected to the filter board, respectively. The capacitor and the filter board are respectively disposed within the receiving cavity. One end of the power connector passes through the first mounting hole and is disposed within the receiving cavity; and / or The cover is provided with heat dissipation fins on the side opposite to the housing. The heat dissipation fins are arranged along the axial direction of the pump assembly on one side of the receiving cavity. The heat dissipation fins are 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 also includes a signal connector mounted on the cover, which is electrically connected to the control board.

10. The electric hydraulic pump according to claim 9, characterized in that, The electric hydraulic pump also includes a magnetic ring, which is mounted on the signal connector; and / or The cover is also provided with a second mounting hole that communicates with the receiving cavity, and one end of the signal connector passes through the second mounting hole and is disposed in the receiving cavity.

11. The electric hydraulic pump according to any one of claims 5-10, characterized in that, The electric hydraulic pump also includes a first partition, which is connected between the housing and the cover. The pump unit is located on the side of the first partition facing the housing, and the control board is located on the side of the first partition away from the housing.

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

13. The electric hydraulic pump according to any one of claims 1-10, characterized in that, The pump set includes at least two electric pump bodies, which are arranged sequentially 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.

14. 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 13, wherein the electro-hydraulic pump is connected to the shock absorber.

15. A vehicle, characterized in that, The vehicles include: Vibration damper; The electro-hydraulic pump according to any one of claims 1 to 13, wherein the electro-hydraulic pump is connected to the shock absorber.

Images