Hydraulic electric pump, active hydraulic suspension and automobile

Abstract

The utility model relates to the technical field of vehicles, and provides a hydraulic electric pump, an active hydraulic suspension and an automobile. The hydraulic electric pump comprises a motor with a motor shaft and a pump connected to the motor shaft, the pump is arranged at the end, in the axial direction of the motor shaft, of the motor, the hydraulic electric pump further comprises a control module and a first connector, the control module comprises a control panel and a sensor assembly, the sensor assembly is connected to the motor and / or the pump, and the control panel is electrically connected with the motor; the first connector comprises a first connecting plug and a first connecting socket which can be matched with each other in a plugging manner, one of the first connecting plug and the first connecting socket is arranged on the sensor assembly, and the other one is arranged on the control panel, so that the control panel is electrically connected with the sensor assembly. According to the hydraulic electric pump provided by the invention, the sensors can be quickly disassembled and assembled relative to the control module, and the risk of disordered wiring is reduced.

Description

Technical Field

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

[0002] The hydraulic electric pump, as a device that actively provides hydraulic energy to the shock absorber, along with the shock absorber and solenoid valve, constitutes the three key components of an active hydraulic suspension system. Each wheel requires an independent hydraulic electric pump.

[0003] In related technologies, hydraulic electric pumps typically consist of three components: a hydraulic pump, a motor, and a motor controller, all arranged axially along the motor shaft. The motor controller integrates various sensors to monitor the performance of the motor and hydraulic pump, thereby facilitating motor control. However, the integration of multiple sensors, each requiring electrical connection to the main control circuitry within the motor controller for signal transmission, results in complex overall wiring. Utility Model Content

[0004] Therefore, it is necessary to provide a hydraulic electric pump that not only facilitates the quick assembly and disassembly of various sensors relative to the control board, but also reduces the risk of messy wiring.

[0005] A hydraulic electric pump includes a motor having a motor shaft and a pump connected to the motor shaft. The pump is located at one end of the motor along the axial direction of the motor shaft. The hydraulic electric pump further includes a control module and a first connector. The control module includes a control board and a sensor assembly. The sensor assembly is connected to the motor and / or the pump. The control board is electrically connected to the motor. The first connector includes a first plug and a first socket that can be plugged into each other. One of the first plug and the first socket is located on the sensor assembly, and the other is located on the control board to electrically connect the control board and the sensor assembly.

[0006] Understandably, the hydraulic electric pump provided in this application utilizes a quick-connect method with a first connector and a first socket to facilitate electrical signal transmission between the sensor assembly and the control board, resulting in faster and more convenient operation, as well as easier disassembly and subsequent maintenance. Furthermore, this method eliminates wiring, simplifying the overall structure. Therefore, the hydraulic electric pump provided in this application not only facilitates the quick disassembly and assembly of various sensors relative to the control board but also reduces the risk of messy wiring.

[0007] In some embodiments, the control board is located at one end of the motor away from the pump, and the sensor assembly includes at least a sensor circuit board; the sensor circuit board is arranged opposite to and spaced apart from the control board along the motor shaft axis, and the first connector or the first socket is located on the sensor circuit board.

[0008] This setup is equivalent to placing the sensor circuit board and the control board in the same direction and in parallel, which facilitates the connection and mating of the first connector mentioned above, thereby improving the alignment accuracy of the first connector and the first socket and ensuring the reliability of the electrical connection.

[0009] In some embodiments, the motor includes an assembly housing and a motor body. The assembly housing has a motor cavity for accommodating the motor body. The assembly housing has an end plate located axially away from the pump along the motor shaft. The sensor circuit board is connected to the end plate.

[0010] In other words, the end plate not only provides a mounting base for the sensor circuit board, but also helps to separate the motor body from the sensor circuit board, protecting the sensor circuit board from interference from other structures and ensuring stable operation.

[0011] In some embodiments, along the motor shaft axis, the end plate has a protruding retaining platform that surrounds the outer periphery of the first connector.

[0012] This design serves to protect the first connector; and when the first connector and the first socket are mated together, it is equivalent to a barrier surrounding the outer periphery of the first connector, reducing interference from other structures and ensuring the stability of the mating.

[0013] In some embodiments, the enclosure platform has a notch radially along the motor shaft, and the sensor circuit board has a connecting arm that passes through the notch and is fixed to the end plate.

[0014] In other words, by using the notch of the connecting arm to connect with the end plate, the connection stability of the sensor circuit board relative to the end plate is improved, especially the stability at the position of the first connector, ensuring that the sensor circuit board will not warp or shake due to the interlocking action during the insertion process.

[0015] In some embodiments, the sensor assembly further includes a temperature sensor disposed on the motor and electrically connected to the control board.

[0016] In this way, a temperature sensor can be used to detect the internal temperature of the motor body to prevent the motor body from overheating.

[0017] In some embodiments, the temperature sensor has a signal transmission line that is directly electrically connected to the control board.

[0018] In other words, the signal transmission line can directly transmit the detection signal to the main control circuit of the control board, reducing interference during transmission.

[0019] In some embodiments, the sensor assembly further includes a position sensor and a sensor circuit board, the position sensor being electrically connected to the control board via the sensor circuit board, and the first connector or the first socket being disposed on the sensor circuit board.

[0020] In some embodiments, the sensor assembly further includes a temperature sensor having a signal transmission line electrically connected to the control board via the sensor circuit board.

[0021] This setup can reduce the length of signal transmission lines and improve the problem of messy wiring.

[0022] In some embodiments, the end of the signal transmission line is soldered to the sensor circuit board; or, the sensor assembly further includes a signal transmitter disposed on the sensor circuit board and having a plug-in port, the end of the signal transmission line being connected to a mating plug, the mating plug being plugged into the plug-in port.

[0023] In other words, the signal transmission line of the temperature sensor can be quickly installed and removed by using a plug and connector, which is not only convenient to operate, but also provides a more accurate connection.

[0024] In some embodiments, the motor includes at least a mounting housing that surrounds a control cavity for housing the control board; the hydraulic electric pump also includes a signal connector that passes through the mounting housing and is electrically connected to the control board.

[0025] This enhances the protection of the control board; moreover, the signal connector, as a bridge for communication between the control board and the outside world, can transmit control signals and feedback information in real time, achieving precise and efficient control.

[0026] In some embodiments, the hydraulic electric pump further includes a drive module, which is radially disposed on the outer periphery of the motor along the motor shaft; the drive module includes a drive board and a power board, which are arranged radially spaced and electrically connected along the motor shaft, and the drive board is electrically connected to the control board and the motor.

[0027] This configuration reduces the axial dimensions and minimizes interference from high-voltage electronic components to low-voltage electronic components.

[0028] In some embodiments, the hydraulic electric pump further includes a second connector, which includes a second plug and a second socket that are mutually inserted and mated, one of which is located on the drive board and the other on the control board, to electrically connect the control board and the drive board; and / or, the hydraulic electric pump further includes a third connector, which includes a third plug and a third socket that are mutually inserted and mated, one of which is located on the drive board and the other on the power board, to electrically connect the drive board and the power board.

[0029] In some embodiments, there are two pumps and two motors, with the motor shafts of the two motors parallel and arranged axially along one of the motor shafts, and the two motors located between the two pumps along the axial direction of the motor shaft; there are two drive modules, each located on the first side of its corresponding motor; the control board is located between the two motors; and the position sensor is provided at the end of the motor shaft of each motor opposite to the pump.

[0030] In other words, the two sets of drive modules and the two sets of sensor components can each be adapted to a motor, which is conducive to independent and precise control of the operation of the corresponding motor.

[0031] This application also provides an active hydraulic suspension, including a shock absorber and the aforementioned electric pump, wherein the electric pump is in fluid communication with the shock absorber.

[0032] This application also provides a vehicle including the aforementioned active hydraulic suspension. Attached Figure Description

[0033] 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.

[0034] Figure 1 A schematic diagram of a hydraulic electric pump provided in an embodiment of this application;

[0035] Figure 2 An exploded view of an electric pump provided in an embodiment of this application;

[0036] Figure 3 A partial exploded view of an electric pump provided in an embodiment of this application;

[0037] Figure 4A partial schematic diagram of an electric pump provided in an embodiment of this application;

[0038] Figure 5 A partial front view of an electric pump provided according to an embodiment of this application;

[0039] Figure 6 A partial schematic diagram of an electric pump provided in an embodiment of this application;

[0040] Figure 7 This is a partial cross-sectional view of an electric pump provided in an embodiment of this application.

[0041] Reference numerals: 110, Motor; 111, Motor body; 112, Assembly housing; 120, Pump; 130, Drive module; 131, Power board; 132, Drive board; 133, Capacitor element; 140, Control board; 150, First connector; 151, First plug-in; 152, First plug socket; 160, Sensor assembly; 161, Sensor circuit board; 162, Temperature sensor; 163, Signal transmitter; 171, Power input connector; 172, Signal connector; 180, Cover plate; 181, First... 182. Second cover plate; 191. Second connector; 192. Third connector; 1101. Motor cavity; 1102. Control cavity; 1102a. First receiving space; 1102b. Second receiving space; 1121. End plate; 1122. Enclosure platform; 1123. Notch; 1611. Connecting arm; 1621. Signal transmission line; 1721. Pin; 1801. Avoidance recess; 1911. Second plug; 1912. Second plug socket; 1921. Third plug; 1922. Third plug socket. Detailed Implementation

[0042] 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.

[0043] It should be noted that when a component is referred to as being "fixed to" or "attached to" 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] In related technologies, hydraulic electric pumps mainly consist of three components: a hydraulic pump, a motor, and a motor controller, arranged axially along the motor shaft. The motor controller needs to integrate numerous electronic components to control the motor's operation. The motor controller primarily comprises a control section and a drive section. The control section, as the core of the motor controller, is mainly responsible for processing input signals, executing control algorithms, and outputting control commands. The drive section is mainly used to convert control signals into the electrical power required by the motor to drive its operation. The drive section typically includes various power electronic components for high voltage and high power. Simultaneously, the motor controller also includes a detection section, which includes various sensors to detect the motor's operating performance. The detection signals from each sensor are transmitted to the control section, where they are processed and analyzed before commands are sent to the drive section to adjust the motor's operation.

[0048] However, the need to integrate multiple different sensors, each requiring electrical connection to the control unit via its own signal line for signal transmission, results in a complex wiring system within the hydraulic electric pump, often posing a wiring challenge. Furthermore, additional wiring structures are required, further complicating the overall design.

[0049] To address this, one embodiment of this application provides a hydraulic electric pump that not only facilitates the rapid assembly and disassembly of various sensors relative to the control module, but also reduces the risk of messy wiring and simplifies the structure. The hydraulic electric pump is described in detail below.

[0050] Please see Figures 2 to 5 In some embodiments, the hydraulic electric pump includes a motor 110 with a motor shaft and a pump 120 connected to the motor 110. The pump 120 is located at one end of the motor 110 along the axial direction of the motor shaft. The hydraulic electric pump also includes a control module and a first connector 150. The control module includes a control board 140 and a sensor assembly 160. The sensor assembly 160 is connected to the motor 110 and / or the pump 120. The control board 140 is electrically connected to the motor 110. The first connector 150 includes a first plug 151 and a first plug socket 152 that can be plugged into each other. One of the first plug 151 and the first plug socket 152 is located on the sensor assembly 160, and the other is located on the control board 140, so as to electrically connect the control board 140 and the sensor assembly 160.

[0051] In practical use, the control module also includes a drive module 130, which has a power supply circuit and a drive circuit electrically connected. The drive circuit is electrically connected to the motor 110 and the control board 140. The control board 140 has multiple electronic components that collectively define the main control circuit, which is electrically connected to the drive circuit and the power supply circuit. The motor 110 includes a motor body 111, with a motor shaft connected to a rotor assembly within the motor body 111. A stator assembly within the motor body 111 surrounds the outer periphery of the rotor assembly and has leads for electrical connection to the drive module 130 and the control board 140, thereby enabling power output and control of the motor body 111. The sensor assembly 160 is used to detect the operating performance of the motor 110, such as the rotation of the motor shaft and the temperature inside the motor body 111. The sensor assembly 160 can transmit the detected signals to the control board 140, which analyzes and processes them before issuing appropriate commands. For example, the control board 140 can send a command to the drive circuit based on the detection signal of the motor shaft rotation, and control the motor body 111 to adjust the operating conditions through the drive circuit.

[0052] In other words, the quick-connection method using the first connector 151 and the first socket 152 satisfies the electrical signal transmission between the sensor assembly 160 and the control board 140, making operation faster and more convenient, and facilitating quick assembly, disassembly, and subsequent maintenance. Furthermore, this method eliminates wiring, resulting in a simpler overall structure. For example, the first connector 151 can be located on the sensor assembly 160, and the first socket 152 on the control board 140. Conversely, the first connector 151 can be located on the control board 140, and the first socket 152 on the sensor assembly 160.

[0053] Please see Figures 3 to 5 In some embodiments, the sensor assembly 160 includes a sensor circuit board 161, which is electrically connected to the control board 140 via the aforementioned first connector 150. Therefore, one of the aforementioned first connector 151 and first connector socket 152 is located on the sensor circuit board 161, and the other is located on the control board 140. For example, if the sensor assembly 160 also includes a position sensor, the position sensor is located at the end of the motor 110 away from the pump 120, mainly used to detect the rotation of the motor body 111, and then transmits the signal to the sensor circuit board 161, which in turn transmits the signal to the control board 140 for processing by the main control circuit. Of course, the control board 140 also has a data acquisition circuit, which is electrically connected to the sensor circuit board 161 and to the main control circuit. The data acquisition circuit acquires the detection signal transmitted by the sensor circuit board 161 and sends it to the main control circuit.

[0054] In some embodiments, the sensor circuit board 161 and the control board 140 are functionally integrated.

[0055] It should be added that the first connector 151 and the first socket 152 can be connected by a blade, insert, or other flexible insertion method. Of course, the first connector 151 and the first socket 152 can also be connected by a terminal and a port. This is only an example.

[0056] In some embodiments, the control board 140 is located at one end of the motor 110 away from the pump 120. Along the motor shaft axis, the sensor circuit board 161 is arranged opposite to and spaced apart from the control board 140, and a first connector 151 or a first connector socket 152 is located on the sensor circuit board 161. This arrangement effectively places the sensor circuit board 161 and the control board 140 in the same direction and allows them to be arranged parallel to each other, facilitating insertion and mating via the aforementioned first connector 150. This improves the alignment accuracy of the first connector 151 and the first connector socket 152, ensuring the reliability of the electrical connection.

[0057] like Figure 7As shown, in some embodiments, the motor 110 includes a mounting housing 112 and a motor body 111. The mounting housing 112 has a motor cavity 1101 for accommodating the motor body 111, thus protecting the motor body 111. The mounting housing 112 also facilitates connection with other structures. For example, when the hydraulic electric pump needs to be mounted on the suspension body, the mounting housing 112 is used to fix it to the suspension body.

[0058] Please see Figure 3 and Figure 6 Taking the sensor assembly 160, which also includes a position sensor as an example, the position sensor is located at the end of the motor 110 away from the pump 120. It is mainly used to detect the rotation of the motor body 111 and then transmits the signal to the sensor circuit board 161. The sensor circuit board 161 then transmits the signal to the control board 140 for processing by the main control circuit. The control board 140 also has a data acquisition circuit, which is electrically connected to the sensor circuit board 161 and the main control circuit. The data acquisition circuit acquires the detection signal transmitted by the sensor circuit board 161 and sends it to the main control circuit.

[0059] It should be added that the first connector 151 and the first socket 152 can be connected by a blade, insert, or other flexible insertion method. Of course, the first connector 151 and the first socket 152 can also be connected by a terminal and a port. This is only an example.

[0060] Please see Figures 2 to 4 In some embodiments, the control board 140 is located at the end of the motor 110 opposite to the pump 120. Along the motor shaft axis, the sensor circuit board 161 is arranged opposite and spaced from the control board 140, and a first connector 151 or a first connector socket 152 is located on the sensor circuit board 161. This arrangement effectively places the sensor circuit board 161 and the control board 140 in the same direction and allows them to be arranged parallel to each other, facilitating the insertion and engagement via the aforementioned first connector 150. This improves the alignment accuracy of the first connector 151 and the first connector socket 152, ensuring the reliability of the electrical connection.

[0061] like Figure 3 and Figure 6As shown, the assembly housing 112 has an end plate 1121 located axially away from the pump 120 along the motor shaft, and the sensor circuit board 161 is connected to the end plate 1121. In some embodiments, the end plate 1121 has a mounting position for mounting the sensor circuit board 161, facilitating a secure connection between the sensor circuit board 161 and the end plate 1121, thus providing support for the sensor circuit board 161. The sensor circuit board 161 can be fixed to the end plate 1121 with screws. In other words, the end plate 1121 not only provides a mounting base for the sensor circuit board 161 but also helps to separate the motor body 111 from the sensor circuit board 161, protecting the sensor circuit board 161 from interference from other structures and ensuring stable operation.

[0062] like Figure 3 and Figure 6 As shown, in some embodiments, a retaining platform 1122 protrudes from the end plate 1121 along the motor shaft axis, and the retaining platform 1122 surrounds the outer periphery of the first connector 150. Taking the first plug 151 in the first connector 150 as an example where the first plug 151 is located on the sensor circuit board 161, the retaining platform 1122 surrounds the outer periphery of the first plug 151. This arrangement serves to protect the first plug 151; and when the first plug 151 and the first plug socket 152 are mated, it is equivalent to the retaining platform 1122 surrounding the outer periphery of the first connector 150, reducing the interference of the first connector 150 from other structures and ensuring the stability of the mating.

[0063] In some embodiments, the enclosure platform 1122 has a notch 1123 radially along the motor shaft, and the sensor circuit board 161 has a connecting arm 1611, which passes through the notch 1123 and is fixed to the end plate 1121. That is, by using the connecting arm 1611 to extend out of the notch 1123 and connect with the end plate 1121, the connection stability of the sensor circuit board 161 relative to the end plate 1121 is improved, especially the stability at the position of the first connector 150, ensuring that the sensor circuit board 161 will not warp or shake due to the insertion action. In actual use, the first connector 151 is located at a lower position on the sensor circuit board 161, and multiple round holes for screw fixing are also provided at a higher position on the sensor circuit board 161 to ensure a reliable connection between the sensor circuit board 161 and the end plate 1121.

[0064] like Figure 3 and Figure 6As shown, in some embodiments, the sensor module further includes a temperature sensor 162, which is arranged spaced apart from the position sensor. The temperature sensor 162 is also located at the end of the motor 110 away from the pump 120 and is electrically connected to the control board 140. The temperature sensor 162 is used to detect the internal temperature of the motor body 111 to prevent overheating. In actual use, the motor 110 also includes a heat dissipation structure for cooling the motor body 111. The temperature signal detected by the temperature sensor 162 is acquired by the acquisition circuit on the control board 140 and transmitted to the main control circuit for processing and analysis. If the detected temperature is greater than a preset value in the main control circuit, the main control circuit sends a command to the drive circuit to control the heat dissipation structure to start for heat dissipation. This is only an example.

[0065] Temperature sensors 162 can be spaced above position sensors.

[0066] In some embodiments, the temperature sensor 162 has a signal transmission line 1621, which is directly electrically connected to the control board 140. It is understood that the temperature sensor 162 includes a detection terminal and a signal transmission line 1621 connected to the detection terminal. The detection terminal is connected to the motor body 111, and the signal transmission line 1621 can transmit the detection signal from the detection terminal to the main control circuit of the control board 140 for analysis and processing. Using the signal transmission line 1621 to directly transmit the signal to the control board 140 reduces interference during transmission.

[0067] like Figure 3 and Figure 6 As shown, in some embodiments, the sensor circuit board 161 is provided with a temperature signal transmission circuit, and the signal transmission line 1621 of the temperature sensor 162 is electrically connected to the control board 140 through the temperature signal transmission circuit. That is, the signal transmission line 1621 can be connected to the sensor circuit board 161 first, and then the signal is transmitted through the first connector 150 between the sensor circuit board 161 and the control board 140. This arrangement can reduce the length of the signal transmission line 1621 and improve the problem of messy wiring. One end of the temperature signal transmission circuit on the sensor circuit board 161 is electrically connected to the signal transmission line 1621, and the other end is electrically connected to the first plug 151 in the first connector 150, so as to ensure that the detection signal of the temperature sensor 162 can be transmitted to the control board 140 for analysis and processing.

[0068] The signal transmission line 1621 can be directly soldered to the position on the sensor circuit board 161 corresponding to the temperature signal transmission circuit.

[0069] like Figure 3 and Figure 6As shown, in some embodiments, the sensor circuit board 161 is provided with a signal transmitter 163, which has a plug-in port. The end of the signal transmission line 1621 of the temperature sensor 162 is connected to a mating plug, which is plugged into the plug-in port. That is to say, the signal transmission line 1621 of the temperature sensor 162 can also be quickly installed and removed from the sensor circuit board 161 by plugging in the mating plug and plug-in port, which is not only convenient to operate, but also provides a more stable connection.

[0070] like Figure 2 , Figure 3 and Figure 7 As shown, in some embodiments, the mounting housing 112 of the motor 110 surrounds a control cavity 1102 for accommodating the control board 140, thus protecting the control board 140. Simultaneously, the aforementioned drive module 130 can also be disposed within the control cavity 1102. In actual use, the hydraulic electric pump also includes a cover plate 180, which is connected to the mounting housing 112 to seal the control cavity 1102. The hydraulic electric pump also includes a signal connector 172, which passes through the mounting housing 112 and is electrically connected to the control board 140. The signal connector 172 serves as a bridge for communication between the control board 140 and the outside world, enabling real-time transmission of control signals and feedback information, achieving precise and efficient control.

[0071] The cover plate 180 is provided with a relief recess 1801 for accommodating the signal connector 172, thereby reducing the space occupied by the signal connector 172 in the radial direction of the motor shaft.

[0072] In some embodiments, the control board 140 has a plurality of spaced-apart sockets, and the signal connector 172 has a plurality of spaced-apart pins 1721, each pin 1721 being inserted into one socket. That is, the insertion and mating of the pins 1721 and the sockets facilitates quick mating between the signal connector 172 and the control board 140. Of course, the electrical connection between the control board 140 and the signal connector 172 can also be configured with reference to the aforementioned first connector 150; this is merely an example.

[0073] Please see Figures 2 to 5In some embodiments, the hydraulic electric pump further includes a drive module 130, which is radially disposed on the outer periphery of the motor 110 along the motor shaft. That is, in this embodiment, the hydraulic electric pump causes the drive module 130 and the control board 140 to be respectively arranged at the end and outer periphery of the motor 110. This arrangement, on the one hand, reduces the number of electronic components integrated at the end of the motor 110, thereby reducing the space occupied by the control board 140 along the motor shaft, thus reducing the overall axial dimension of the electric pump; on the other hand, it improves the space utilization of the outer periphery of the motor 110. Simultaneously, by separating the drive module 130 and the control board 140 at different locations on the motor 110, the drive module 130 and the control board 140 can be structurally separated, increasing the spacing between the high-voltage electronic components in the drive module 130 and the low-voltage electronic components in the control board 140, thereby reducing interference from the high-voltage electronic components to the low-voltage electronic components. At this point, there is no need to add other structures to meet anti-interference requirements, further reducing the size of the electric pump.

[0074] Furthermore, since the drive module 130 includes a power supply circuit and a drive circuit, the electronic components forming the power supply circuit are typically significantly larger than other electronic components. Therefore, placing the drive module 130 on the outer periphery of the motor 110 is equivalent to transferring the larger electronic components to the outer periphery of the motor 110, while the electronic components remaining at the end of the motor 110 are all small in size, thereby significantly reducing the axial dimension.

[0075] Please see Figures 2 to 5 In some embodiments, the drive module 130 includes a drive board 132 and a power board 131, which are arranged radially at intervals along the motor shaft and electrically connected. The drive board 132 is electrically connected to the control board 140 and the motor 110.

[0076] Understandably, by using the power board 131 and the driver board 132 to distribute the electronic components corresponding to the drive module 130 across two circuit boards, the number of integrated electronic components on each circuit board is reduced, leading to a corresponding reduction in the size of the corresponding circuit board. Furthermore, the radial arrangement of the power board 131 and the driver board 132 along the motor axis allows multiple electronic components to be arranged radially along the motor axis, reducing the space occupied along the motor axis. Simultaneously, since the power board 131 has a power supply circuit and the driver board 132 has a drive circuit, it is equivalent to modularly distributing the electronic components used to provide power and those used to amplify low-power signals into high-power signals to drive the motor, reducing interference between the various electronic components. The power board 131 includes a capacitor 133.

[0077] In some embodiments, the hydraulic electric pump further includes a second connector 191, which includes a second plug-in connector 1911 and a second plug-in socket 1912 that are mutually inserted and mated. One of the second plug-in connector 1911 and the second plug-in socket 1912 is disposed on the drive board 132, and the other is disposed on the control board 140, so as to electrically connect the control board 140 and the drive board 132. That is, the quick-connection method of the second plug-in connector 1911 and the second plug-in socket 1912 is used to meet the electrical signal transmission between the drive board 132 and the control board 140. The second plug-in connector 1911 can be disposed on the drive board 132 and the second plug-in socket 1912 can be disposed on the control board 140; or vice versa.

[0078] In some embodiments, the hydraulic electric pump further includes a third connector 192, which includes a third plug-in connector 1921 and a third plug-in socket 1922 that are mutually plugged in. One of the third plug-in connector 1921 and the third plug-in socket 1922 is located on the drive board 132, and the other is located on the power board 131, so as to electrically connect the drive board 132 and the power board 131. That is, the electrical connection between the drive board 132 and the power board 131 can also be achieved by quick plug-in connection, which makes the operation more convenient and faster, and further improves the problem of messy wiring.

[0079] The methods of electrically connecting the drive board 132 and the control board 140 using the second connector 191 and electrically connecting the drive board 132 and the power board 131 using the third connector 192 are basically the same as the methods of electrically connecting the control board 140 and the sensor circuit board 161 using the first connector 150, so they will not be described again here.

[0080] Please see Figure 1 , Figure 3 and Figure 4In some embodiments, two pumps 120 and two motors 110 are provided. The motor shafts of the two motors 110 are parallel and arranged axially along one motor shaft, with the two motors 110 located between the two pumps 120. Two drive modules 130 are provided, each located on the first side of its corresponding motor 110. A control board 140 is located between the two motors 110, and each motor 110 is equipped with a corresponding sensor assembly 160. That is, the two sets of drive modules 130 can each be adapted to one motor 110 for the control of that motor 110. Because each electric pump unit corresponds to the vibration damping requirements of one wheel, the separate arrangement of the two sets of drive modules 130 facilitates independent and precise control of the operation of the corresponding motor 110. Furthermore, because each motor 110 is equipped with a corresponding sensor assembly 160, it is beneficial to more accurately detect the operation of each motor 110, thereby facilitating precise control. Furthermore, since the two drive modules 130 can share a single control board 140, the structure is further simplified, and the axial dimension of the electric pump along the motor shaft is reduced.

[0081] Each drive module 130 includes a power board 131 with a power supply circuit and a drive board 132 with a drive circuit.

[0082] like Figure 2 , Figure 3 and Figure 7 As shown, in some embodiments, each motor 110 has a first receiving space 1102a at the end of its assembly housing 112 facing away from the pump 120, and a second receiving space 1102b on the outer periphery of the assembly housing 112. A control board 140 is disposed in the first receiving space 1102a, and a drive module 130 is disposed in the second receiving space 1102b. The first receiving space 1102a and the second receiving space 1102b together define a control cavity 1102. The two assembly housings 112 are connected at the first receiving space 1102a. The aforementioned cover plate 180 includes a first cover plate 181 and a second cover plate 182. The first cover plate 181 is adapted to one of the assembly housings 112 to correspond to the assembly of one set of drive modules 130, and the second cover plate 182 is adapted to the other assembly housing 112 to correspond to the assembly of the other set of drive modules 130. This setup is equivalent to installing the two drive modules 130 in independent spaces. When one cover 180 is opened, the other cover 180 can be closed, reducing interference with the other drive module 130 and ensuring maintenance safety.

[0083] like Figure 1 , Figure 2 and Figure 4As shown, in some embodiments, the hydraulic electric pump also includes a power input connector 171, which is electrically connected to a power board 131 in the drive module 130 to provide electrical power.

[0084] Another embodiment of this application provides an active hydraulic suspension, including a shock absorber and the aforementioned hydraulic electric pump, with the hydraulic electric pump in fluid communication with the shock absorber. The hydraulic electric pump 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, with both the aforementioned hydraulic electric pump and shock absorber connected to the suspension body.

[0085] Another embodiment of this application provides a car including the aforementioned active hydraulic suspension. The wheels are connected to the active hydraulic suspension via wheel hubs, and the active hydraulic suspension is connected to the vehicle body to provide support for the wheels and the vehicle body, thereby cooperating with other structures to achieve wheel trajectory control. The active hydraulic suspension can reduce the impact transmitted to the wheels due to road bumps during vehicle operation, thereby improving the stability and comfort of the vehicle while driving.

[0086] 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.

[0087] 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. A hydraulic electric pump, characterized in that: The hydraulic electric pump includes a motor having a motor shaft and a pump connected to the motor, the pump being located at one end of the motor along the axial direction of the motor shaft. The hydraulic electric pump further includes: A control module includes a control board and a sensor assembly, the sensor assembly being connected to the motor and / or the pump, and the control board being electrically connected to the motor; The first connector includes a first plug and a first socket that can be plugged into each other, one of the first plug and the first socket being disposed on the sensor assembly and the other being disposed on the control board, so as to electrically connect the control board and the sensor assembly.

2. The hydraulic electric pump according to claim 1, characterized in that, The control board is located at the end of the motor opposite to the pump, and the sensor assembly includes a sensor circuit board; Along the axial direction of the motor shaft, the sensor circuit board is arranged opposite to and spaced apart from the control board, and the first connector or the first connector socket is disposed on the sensor circuit board.

3. The hydraulic electric pump according to claim 2, characterized in that, The motor includes an assembly housing and a motor body. The assembly housing has a motor cavity for accommodating the motor body. The assembly housing has an end plate located axially away from the pump along the motor shaft. The sensor circuit board is connected to the end plate.

4. The hydraulic electric pump according to claim 3, characterized in that, Along the axial direction of the motor shaft, the end plate is provided with a retaining platform, which surrounds the outer periphery of the first connector.

5. The hydraulic electric pump according to claim 4, characterized in that, The enclosure platform has a notch radially along the motor shaft, and the sensor circuit board has a connecting arm that passes through the notch and is fixed to the end plate.

6. The hydraulic electric pump according to claim 1, characterized in that, The sensor assembly also includes a temperature sensor, which is disposed on the motor and electrically connected to the control board.

7. The hydraulic electric pump according to claim 6, characterized in that, The temperature sensor has a signal transmission line, which is directly electrically connected to the control board.

8. The hydraulic electric pump according to claim 1, characterized in that, The sensor assembly further includes a position sensor and a sensor circuit board. The position sensor is electrically connected to the control board through the sensor circuit board, and the first connector or the first socket is disposed on the sensor circuit board.

9. The hydraulic electric pump according to claim 2 or 8, characterized in that, The sensor assembly also includes a temperature sensor, which has a signal transmission line that is electrically connected to the control board via the sensor circuit board.

10. The hydraulic electric pump according to claim 9, characterized in that, The end of the signal transmission line is soldered to the sensor circuit board; or... The sensor assembly also includes a signal transmitter, which is disposed on the sensor circuit board and has a plug-in port. The end of the signal transmission line is connected to a mating plug, which is plugged into the plug-in port.

11. The hydraulic electric pump according to claim 1, characterized in that, The motor includes at least an assembly housing, which surrounds a control cavity for accommodating the control board. The hydraulic electric pump also includes a signal connector, which passes through the assembly housing and is electrically connected to the control board.

12. The hydraulic electric pump according to claim 1, characterized in that, The hydraulic electric pump also includes a drive module, which is radially disposed on the outer periphery of the motor along the motor shaft. The drive module includes a drive board and a power board, which are arranged radially at intervals along the motor shaft and electrically connected. The drive board is electrically connected to the control board and the motor.

13. The hydraulic electric pump according to claim 12, characterized in that, The hydraulic electric pump further includes a second connector, which comprises a second plug and a second socket that are mutually inserted into each other. One of the second plug and the second socket is located on the drive board, and the other is located on the control board, to electrically connect the control board and the drive board; and / or, The hydraulic electric pump also includes a third connector, which includes a third plug and a third socket that are mutually plugged in. One of the third plug and the third socket is located on the drive board, and the other is located on the power board, so as to electrically connect the drive board and the power board.

14. The hydraulic electric pump according to claim 12, characterized in that, There are two pumps and two motors. The motor shafts of the two motors are parallel, and the two motors are arranged along the axial direction of one of the motor shafts. Along the axial direction of the motor shaft, the two motors are located between the two pumps. The drive module is provided in two parts, and each drive module is located on the first side of its respective motor. The control board is located between the two motors, and each motor is provided with a corresponding sensor component.

15. An active hydraulic suspension, characterized in that, The active hydraulic suspension includes: Vibration damper; The hydraulic electric pump according to any one of claims 1 to 14, wherein the hydraulic electric pump is in fluid communication with the shock absorber.

16. A car, characterized in that, The vehicle includes the active hydraulic suspension as described in claim 15.

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