Drive device and kick simulation device

Abstract

The application discloses a driving device and a kicking simulation device. The driving device is used for driving a to-be-driven member to rotate in an electromagnetic environment. The driving device comprises a hydraulic flow path, a hydraulic driving member and a transmission assembly. The hydraulic flow path is used for passing a hydraulic medium. The hydraulic driving member comprises a hydraulic telescopic rod which moves in a first direction under the action of the hydraulic medium. The transmission assembly is located between the hydraulic telescopic rod and the to-be-driven member. Through the technical scheme, electromagnetic radiation generated by motor driving can be avoided from affecting electromagnetic compatibility test results. Meanwhile, the driving device driven by the motor can be avoided from being interfered by electromagnetic radiation in the electromagnetic compatibility test process, so that the motor can normally work. The function of a radar product can be stably operated in the EMC test process, and the influence of environmental variables on test results can be reduced.

Description

Technical Field

[0001] This application relates to the field of radar calibration parameter technology, and in particular to a driving device and a foot-kicking simulation device. Background Technology

[0002] Radar products require EMC testing to assess their performance. In related technologies, auxiliary equipment controlled by motors can introduce instability during EMC testing, potentially affecting the EMC test results of the radar product. Utility Model Content

[0003] This application provides a driving device and a kicking simulation device, which enable the radar to operate stably during EMC testing, thereby at least partially solving the above-mentioned technical problems.

[0004] To achieve the above objectives, according to a first aspect of this application, a driving device is provided, the driving device being used to drive a driven component to rotate in an electromagnetic environment; the driving device includes:

[0005] Hydraulic flow path, used to supply hydraulic medium;

[0006] A hydraulic drive unit includes a hydraulic telescopic rod that moves in a first direction under the action of the hydraulic medium;

[0007] A transmission assembly is located between the hydraulic telescopic rod and the component to be driven.

[0008] The transmission assembly includes an active transmission component and a passive transmission component that are meshed together. The active transmission component is connected to the hydraulic telescopic rod, and the passive transmission component is connected to the component to be driven. The active transmission component moves along a first direction under the action of the hydraulic telescopic rod to drive the passive transmission component to rotate the component to be driven around a second direction.

[0009] The rotation axis of the passive transmission component is collinear with the rotation axis of the component to be driven.

[0010] Optionally, the transmission assembly is configured as a meshing gear and rack structure;

[0011] The rack is connected to the hydraulic telescopic rod, and the gear is connected to the driven component.

[0012] Optionally, the transmission assembly further includes:

[0013] A swing arm is used to connect the driven component and the passive transmission component;

[0014] The swing axis of the swing rod is collinear with the rotation axis of the passive transmission component and the rotation axis of the component to be driven.

[0015] Optionally, the driving device further includes:

[0016] A base for mounting the transmission assembly and the hydraulic drive component;

[0017] Limit switches are used to limit the displacement of the active transmission component relative to the hydraulic drive component;

[0018] The limit switch is located on one side of the active transmission component.

[0019] Optionally, the driving device further includes:

[0020] A reversing valve is located in the hydraulic flow path;

[0021] A hydraulic pump is used to pump hydraulic media to hydraulic drive components;

[0022] The reversing valve is located between the hydraulic pump and the hydraulic drive unit, and the hydraulic medium flows to the hydraulic drive unit through the reversing valve under the action of the hydraulic pump.

[0023] Optionally, the hydraulic flow path includes:

[0024] The hydraulic flow path includes:

[0025] A first flow path is used to communicate with the first chamber of the hydraulic drive component;

[0026] The second flow path is used to connect to the medium source;

[0027] The reversing valve includes:

[0028] The first connection port is used to connect to the first flow path;

[0029] The second connection port is used to connect to the second flow path;

[0030] The reversing valve has a first working state in which the first connection port is connected to the second connection port so that the medium in the second flow path flows to the first flow path through the second connection port and the first connection port.

[0031] Optionally, the hydraulic flow path further includes:

[0032] The third flow path is used to communicate with the second chamber of the hydraulic drive component;

[0033] The reversing valve also includes:

[0034] The third connection port is used to connect to the third flow path;

[0035] In the first working state, the third connection port is connected to the fourth connection port so that the medium of the third flow path flows through the third connection port to the fourth connection port.

[0036] Optionally, the reversing valve also has a second operating state;

[0037] In the second operating state, the second connection port is connected to the third connection port so that the medium of the second flow path flows to the third flow path through the second connection port and the third connection port;

[0038] In the second operating state, the first connection port is connected to the fourth connection port so that the medium of the first flow path flows through the first connection port to the fourth connection port.

[0039] Optionally, the hydraulic flow path further includes:

[0040] The fourth flow path is used to receive hydraulic medium from the first or second chamber of the hydraulic drive component;

[0041] The drive device further includes:

[0042] The first flow control valve is used to control the flow rate of the medium in the fourth flow path;

[0043] The first flow control valve is located in the fourth flow path.

[0044] Optionally, the driving device further includes:

[0045] The second flow control valve is used to control the flow rate of the hydraulic medium in the second flow path;

[0046] The hydraulic flow path also includes:

[0047] The fifth flow path is used to connect with the second flow path;

[0048] The second flow control valve is located in the fifth flow path.

[0049] According to a second aspect of this application, a kicking simulation device is provided, including a drive element and a drive mechanism as described above.

[0050] The beneficial effect of this application is that it provides a drive device and a kick simulation device that enable the radar to operate stably during EMC testing.

[0051] In the driving device of this application embodiment, the driving device is used to drive the driven component to rotate in an electromagnetic environment; the driving device includes: a hydraulic flow path, a hydraulic driving component, and a transmission assembly, wherein the hydraulic flow path is used to allow hydraulic medium to pass through, the hydraulic driving component includes a hydraulic telescopic rod that moves along a first direction under the action of the hydraulic medium, the transmission assembly is located between the hydraulic telescopic rod and the driven component, wherein the transmission assembly includes an active transmission component and a passive transmission component that are meshed together, the active transmission component is connected to the hydraulic telescopic rod, the passive transmission component is connected to the driven component, the active transmission component moves along the first direction under the action of the hydraulic telescopic rod to drive the passive transmission component to drive the driven component to rotate around a second direction; the rotation axis of the passive transmission component is collinear with the rotation axis of the driven component. By using the above technical solution, and by setting up a hydraulic drive component and a transmission assembly, the hydraulic telescopic rod of the hydraulic drive component can move along the first direction under the pressure of the hydraulic medium, so that the active transmission component moves along the first direction and then the passive transmission component rotates, thereby driving the component to be driven to rotate around the second direction. This can avoid the situation where the motor is affected by electromagnetic interference in the electromagnetic environment, thus affecting the test results. It can also avoid the electromagnetic interference generated by the motor itself on the radar during EMC testing, thus ensuring the stable operation of the radar during EMC testing.

[0052] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0053] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments 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.

[0054] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0055] Figure 1 This is a schematic diagram of the reversing valve of the drive device provided in the exemplary embodiment of this application in the first working state;

[0056] Figure 2 This is a schematic diagram of the reversing valve of the drive device provided in the exemplary embodiment of this application in the second working state;

[0057] Figure 3 This is a schematic diagram of the reversing valve of the drive device provided in the exemplary embodiment of this application in the third working state.

[0058] Explanation of reference numerals in the attached figures:

[0059] 100. Drive unit;

[0060] 100a, hydraulic flow path; 100a1, first flow path; 100a2, second flow path; 100a3, third flow path; 100a4, fourth flow path; 100a5, fifth flow path;

[0061] 110. Hydraulic drive component; 111. Hydraulic telescopic rod; 110a. First chamber; 110b. Second chamber;

[0062] 120. Transmission assembly; 121. Active transmission component; 122. Passive transmission component; 123. Swing rod;

[0063] 130. Base; 140. Limit switch;

[0064] 150. Reversing valve; 151. First connection port; 152. Second connection port; 153. Third connection port; 154. Fourth connection port;

[0065] 160. Second flow control valve; 170. Oil tank; 180. Filter; 190. First flow control valve; 210. Hydraulic pump;

[0066] 10. Foot-kicking simulation device; 200. Components to be driven;

[0067] 10g, rotating axis. Detailed Implementation

[0068] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0069] Reference Figure 1 As shown, for ease of explanation, left and right orientations are used in the corresponding figures to illustrate the relative positional relationships between the parts in this application, and should not be construed as limitations on absolute positions.

[0070] Furthermore, in this application, the first direction corresponds to the left and right directions; similarly, the first direction here indicates the left and right directions only for the convenience of introducing the specific embodiments of this application, and there is no absolute correspondence between the first direction and the left and right directions.

[0071] The first orientation in this application is only for expressing relative positional relationships; they merely indicate approximate directions, not absolute geometric relationships.

[0072] Currently, in the EMC testing of radar products used in vehicle tailgates, a motor-driven auxiliary device is used to simulate a kicking motion, thereby enabling EMC testing of the radar. This auxiliary device primarily drives a simulated leg to mimic human leg movements and emit motion signals. Upon detecting these signals, the radar product can control the opening and closing of the vehicle's tailgate, thus testing whether the radar product meets EMC standards.

[0073] EMC testing is a certification process where radar products must meet EMC standards to ensure stable control and detection functions when used in vehicles and other transportation applications. However, the use of motors to drive simulated legs in auxiliary equipment can introduce instability into EMC testing, affecting the results. For example, during immunity tests, interference can cause the motor to malfunction, preventing it from driving the simulated leg according to predefined parameters and resulting in functional abnormalities. This affects the EMC assessment of the radar product's functionality, causing it to fail to meet standards. Furthermore, in radiated emission tests, the motor in the radiating device can introduce additional electromagnetic radiation, causing the radar product's radiated emission EMC test results to exceed standard limits, thus failing to meet the required standards.

[0074] In view of this, this application provides a drive device 100 and a foot-kicking simulation device 10 that can operate stably during EMC testing of radar products.

[0075] According to a first aspect of this application, a driving device 100 is provided for driving a driven component 200 to rotate in an electromagnetic environment.

[0076] refer to Figures 1 to 3 The driving device 100 includes a hydraulic flow path 100a, a hydraulic drive component 110, and a transmission assembly 120. In this embodiment, the hydraulic flow path 100a is used to allow hydraulic medium to pass through, the hydraulic drive component 110 includes a hydraulic telescopic rod 111 that moves along a first direction under the action of the hydraulic medium, and the transmission assembly 120 is located between the hydraulic telescopic rod 111 and the component 200 to be driven.

[0077] The transmission assembly 120 includes an active transmission component 121 and a passive transmission component 122 that are meshed together. The active transmission component 121 is connected to the hydraulic telescopic rod 111, and the passive transmission component 122 is connected to the drive component 200. The active transmission component 121 moves along a first direction under the action of the hydraulic telescopic rod 111 to drive the passive transmission component 122 to drive the drive component 200 to rotate around a second direction. The rotation axis 10g of the passive transmission component is collinear with the rotation axis 10g of the drive component 200.

[0078] Through the above technical solution, by setting up a hydraulic drive component 110 and a transmission assembly 120, and by enabling the hydraulic telescopic rod 111 of the hydraulic drive component 110 to move along a first direction under the pressure of the hydraulic medium, the active transmission component 121 moves along the first direction, thereby causing the passive transmission component 122 to rotate, and thus driving the driven component 200 to rotate around a second direction, that is, around the rotation axis 10g. This can avoid the situation where the motor is affected by electromagnetic interference in the electromagnetic environment, which would affect the test results. It can also avoid the electromagnetic interference generated by the motor itself on the radar during EMC testing, thus ensuring the stable operation of the radar during EMC testing.

[0079] In other words, the driving device provided in this application embodiment can avoid the situation where the operation of the motor is affected by electromagnetic radiation interference during the EMC radiated immunity test when the driven component is rotated by the motor. It can also avoid the electromagnetic radiation generated by the motor itself affecting the EMC test results of the radar product. In this way, the radar product will not be affected by the electromagnetic radiation emitted by auxiliary equipment such as motors during the EMC test, resulting in abnormal test results and failure to pass the corresponding EMC test standards.

[0080] In this embodiment, the rotation axis 10g is set parallel to the second direction.

[0081] The drive component 200 in this embodiment includes a simulated leg, which can replace manual kicking simulation in the process of radar parameter calibration, thereby ensuring the consistency of the data source of radar calibration parameters, and can also be applied in EMC testing to meet EMC testing requirements.

[0082] In this embodiment, by making the rotation axis 10g of the passive transmission component 122 collinear with the rotation axis 10g of the component to be driven 200, the rotation of the component to be driven 200 can be made more stable, and the rotation angle of the component to be driven 200 can be easily controlled.

[0083] In some embodiments, reference Figure 1 The transmission assembly 120 is constructed as a gear and rack structure with meshing connection; wherein the rack is connected to the hydraulic telescopic rod 111, and the gear and the driven component 200 form a transmission connection.

[0084] By constructing the transmission component 120 as a meshing gear and rack structure, with the rack connected to the hydraulic telescopic rod 111 and the gear and the driven component 200 forming a transmission connection, it is possible to achieve large torque and large angle rotation, thereby enabling the driven component 200 to rotate around the rotation axis by a large angle of 10g, and the power transmission of the gear and rack structure is stable.

[0085] In this embodiment, the rotation angle of the passive transmission member 122 can be calculated based on the travel distance of the active transmission member 121 along the first direction. Since the rotation axis 10g of the passive transmission member 122 and the driven member 200 are collinear, the rotation angle of the driven member 200 can be calculated.

[0086] In some embodiments, reference Figure 1 The transmission assembly 120 further includes a swing rod 123. In this embodiment, the swing rod 123 is used to connect the driven component 200 and the passive transmission component 122; wherein, the swing axis of the swing rod 123 is collinear with the rotation axis 10g of the passive transmission component 122 and the rotation axis 10g of the driven component 200.

[0087] By setting a swing rod 123 between the driven component 200 and the passive transmission component 122, and ensuring that the swing axis of the swing rod 123 is collinear with the rotation axis 10g of the passive transmission component 122 and the rotation axis 10g of the driven component 200, the driven component 200 can rotate stably.

[0088] In some embodiments, reference Figure 1 The drive device 100 further includes a base 130 and a limit switch 140. In this embodiment, the base 130 is used to mount the transmission assembly 120 and the hydraulic drive component 110, and the limit switch 140 is used to limit the displacement of the active transmission component 121 relative to the hydraulic drive component 110; wherein, the limit switch 140 is located on one side of the active transmission component 121.

[0089] By setting a limit switch 140 on one side of the active transmission component 121, the displacement of the active transmission component 121 relative to the hydraulic drive component 110 can be limited, which facilitates control.

[0090] For example, the limit switch 140 is configured as a limit switch, and there are two limit switches, namely a first limit switch and a second limit switch. When the rack moves to the left in the first direction, the rack stops moving to the left when it triggers the first limit switch; when the rack moves to the right in the first direction, the rack stops moving to the right when it triggers the second limit switch.

[0091] In some embodiments, reference Figure 1 The drive unit 100 further includes a directional valve 150 and a hydraulic pump 210. In this embodiment, the directional valve 150 is located in the hydraulic flow path 100a and is used to adjust the flow direction of the hydraulic medium in the hydraulic flow path 100a, while the hydraulic pump 210 is used to pump the hydraulic medium to the hydraulic drive unit 110.

[0092] The directional valve 150 is located between the hydraulic pump 210 and the hydraulic drive unit 110. Under the action of the hydraulic pump 210, the hydraulic medium flows to the hydraulic drive unit 110 through the directional valve 150.

[0093] By installing a directional valve 150 and a hydraulic pump 210 on the hydraulic flow path 100a, the flow direction of the hydraulic medium in the hydraulic flow path 100a can be adjusted, thereby controlling the movement direction of the hydraulic telescopic rod 111 of the hydraulic drive component 110, that is, whether the hydraulic telescopic rod 111 extends or retracts. The hydraulic pump 210 can perform the action of sucking in and compressing the hydraulic medium, so as to achieve the effect of the hydraulic medium flowing in the hydraulic flow path 100a at a preset pressure.

[0094] In one embodiment, the directional valve 150 is configured as a three-position four-way solenoid valve. It should be noted that when the directional valve 150 in this embodiment is configured as a three-position four-way solenoid valve, it also generates electromagnetic fields, but the intensity of these fields is low. The electromagnetic radiation interference it generates is significantly less than that generated by a motor, and the electromagnetic radiation from the solenoid valve can be directly suppressed. For example, the solenoid valve can have a built-in suppression circuit or element, and the radiation interference generated by the solenoid valve can be effectively shielded inside the solenoid valve or reduced through grounding. Therefore, it is evident that the solenoid valve in this embodiment can adjust the direction of the medium while exhibiting low levels of electromagnetic radiation interference, and the interference caused by it to EMC testing is negligible.

[0095] It should be noted that the possibility that the space where the reversing valve 150 is located and the space where the hydraulic drive component 110 is located in the embodiments of this application can be set independently cannot be ruled out. In this case, the influence of the electromagnetic field generated by the reversing valve on the EMC test results can be further reduced.

[0096] In some embodiments, the hydraulic flow path 100a includes: a first flow path 100a1 and a second flow path 100a2.

[0097] In this embodiment, the first flow path 100a1 is used to communicate with the first chamber 110a of the hydraulic drive component 110, and the second flow path 100a2 is used to communicate with the medium source.

[0098] The reversing valve 150 in this embodiment includes a first connection port 151 and a second connection port 152. The first connection port 151 in this embodiment is used to communicate with the first flow path 100a1, and the second connection port 152 is used to communicate with the second flow path 100a2.

[0099] Among them, reference Figure 1The reversing valve 150 has a first working state. In the first working state, the first connection port 151 is connected to the second connection port 152 so that the medium of the second flow path 100a2 flows to the first flow path 100a1 through the second connection port 152 and the first connection port 151.

[0100] When it is necessary to drive the hydraulic telescopic rod 111 to move to the right in the first direction, the hydraulic pump 210 draws in and pumps the hydraulic medium into the second flow path 100a2, and flows along the second flow path 100a2 through the second connection port 152 to the first connection port 151, and along the first connection port 151 to the first flow path 100a1, and flows into the first chamber 110a of the hydraulic drive member 110 which is connected to the first flow path 100a1, thereby driving the hydraulic telescopic rod 111 of the hydraulic drive member 110 to move to the right in the first direction, thereby enabling the rack to move to the right in the first direction and drive the gear to rotate, thereby driving the driven member 200 at the end of the rocker arm to rotate counterclockwise.

[0101] Among them, the first chamber 110a of the hydraulic drive component 110 is a rodless chamber, and the second chamber 110b is a rod chamber (that is, part of the hydraulic telescopic rod 111 is located in the second chamber 110b).

[0102] In some embodiments, the hydraulic flow path 100a further includes a third flow path 100a3. The third flow path 100a3 in this embodiment is used to communicate with the second chamber 110b of the hydraulic drive member 110.

[0103] The reversing valve 150 further includes a third connection port 153 and a fourth connection port 154. In this embodiment, the third connection port 153 is used to communicate with the third flow path 100a3.

[0104] Among them, reference Figure 1 When the reversing valve 150 is in the first working state, the third connection port 153 and the fourth connection port 154 are connected so that the hydraulic medium in the third flow path 100a3 flows through the third connection port 153 to the fourth connection port 154.

[0105] By setting a third flow path 100a3, connecting the third flow path 100a3 to the corresponding third connection port 153, and connecting the third flow path 100a3 to the second chamber 110b, when the reversing valve 150 is in the first working state, the hydraulic medium flows into the first chamber 110a, while the hydraulic medium in the second chamber 110b is discharged from the second chamber 110b. The third flow path 100a3 can be connected and communicated with the third connection port 153, and the third connection port 153 is connected to the fourth connection port 154, so that the hydraulic medium in the second chamber 110b can flow along the third flow path 100a3 through the third connection port 153 to the fourth connection port 154. In this way, the hydraulic medium can enter the first chamber 110a, and the hydraulic medium in the second chamber 110b can be discharged from the second chamber 110b, thereby achieving the effect that the hydraulic telescopic rod 111 can move stably to the right in the first direction.

[0106] In some embodiments, reference Figure 2 The reversing valve 150 also has a second operating state; in the second operating state, the second connection port 152 is connected to the third connection port 153 so that the medium in the second flow path 100a2 flows to the third flow path 100a3 through the second connection port 152 and the third connection port 153; and the first connection port 151 is connected to the fourth connection port 154 so that the medium in the first flow path 100a1 flows to the fourth connection port 154 through the first connection port 151.

[0107] In this way, the hydraulic medium in the first chamber 110a can flow through the first flow path 100a1 and then through the first connection port 151 and the fourth connection port 154, thus achieving the effect of the medium flowing out of the first chamber 110a. Meanwhile, the hydraulic medium in the second flow path 100a2 can flow through the second connection port 152 and the third connection port 153 to the third flow path 100a3, and then into the second chamber 110b connected to the third flow path 100a3, thus achieving the effect of the hydraulic medium flowing into the second chamber 110b, thereby achieving the effect of the hydraulic telescopic rod 111 being able to move stably to the left in the first direction.

[0108] In some embodiments, the hydraulic flow path 100a further includes a fourth flow path 100a4. The fourth flow path 100a4 in this embodiment is used to receive media from the first chamber 110a or the second chamber 110b of the hydraulic drive member 110.

[0109] The drive device 100 further includes a first flow control valve 190. In this embodiment, the first flow control valve 190 is used to control the flow rate of the medium on the fourth flow path 100a4; wherein, the first flow control valve 190 is located in the fourth flow path 100a4.

[0110] By setting up a fourth flow path 100a4, which works in conjunction with the first flow path 100a1, the second flow path 100a2, and the third flow path 100a3, the inflow and outflow of hydraulic medium in the hydraulic drive component 110 can be realized.

[0111] For example, refer to Figure 1 When the hydraulic telescopic rod 111 moves to the right, the reversing valve 150 is in the first working state, that is, the hydraulic medium in the second flow path 100a2 can flow through the first connection port 151 and the second connection port 152 in sequence into the second flow path 100a2, so as to enter the first chamber 110a connected to the second flow path 100a2. The hydraulic medium in the second chamber 110b can flow along the third flow path 100a3 through the third connection port 153 and the fourth connection port 154 of the reversing valve 150 to the fourth flow path 100a4, so that the fourth circuit can receive the hydraulic medium flowing out of the second chamber 110b.

[0112] For example, refer to Figure 2 When the hydraulic telescopic rod 111 moves to the left, the hydraulic medium in the second flow path 100a2 can flow through the second connection port 152 and the third connection port 153 to the third flow path 100a3, and then flow into the second chamber 110b. Meanwhile, the hydraulic medium in the first chamber 110a can flow along the second circuit through the first connection port 151 and the fourth connection port 154 of the reversing valve 150 to the fourth circuit, thereby receiving the hydraulic medium flowing out of the first chamber 110a.

[0113] A first flow control valve 190 is provided on the fourth flow path 100a4 to control the flow rate of the medium on the fourth flow path 100a4, thereby controlling the rotation speed of the driven component 200. For example, the first flow control valve 190 is configured as a pressure reducing valve.

[0114] In some embodiments, the drive device 100 further includes a second flow control valve 160. The second flow control valve 160 in this embodiment is used to control the flow rate of the hydraulic medium in the second flow path 100a2.

[0115] The hydraulic flow path 100a further includes a fifth flow path 100a5. In this embodiment, the fifth flow path 100a5 is used to communicate with the second flow path 100a2; wherein, the second flow control valve 160 is located in the fifth flow path 100a5.

[0116] By setting a second flow control valve 160 on the fifth flow path 100a5, the flow path of the hydraulic medium in the second flow path 100a2 can be controlled, that is, the hydraulic medium in the second flow path 100a2 can flow into the fifth flow path 100a5 under the action of the control valve of the second flow path 100a2.

[0117] For example, the second flow control valve 160 can be configured as a relief valve to prevent excessive medium pressure on the second flow path 100a2, protect the safe operation of the hydraulic drive 110, control the overflow of excess flow, and ensure that the outlet pressure of the hydraulic pump 210 is kept within a reasonable range.

[0118] The drive device 100 in this embodiment further includes an oil tank 170, which has an internal space for storing hydraulic medium as a medium source. The second flow path 100a2 and the fifth flow path 100a5 are connected to the internal space of the oil tank 170. Under the action of the second flow control valve 160 on the fifth flow path 100a5, excess hydraulic medium on the second flow path 100a2 can flow back to the oil tank 170 along the fifth flow path 100a5.

[0119] For example, the fourth flow path 100a4 can also be connected to the oil tank 170, and the hydraulic medium on the fourth flow path 100a4 can flow into the oil tank 170 under the action of the first flow control valve 190.

[0120] It should be noted that the oil tank 170 connected to the fifth flow path 100a5 and the oil tank 170 connected to the fourth flow path 100a4 can be the same oil tank 170 or different oil tanks 170. This application does not limit this.

[0121] The drive device 100 in this embodiment further includes a filter 180 located between the oil tank 170 and the hydraulic pump 210, for filtering impurities in the hydraulic medium in the oil tank 170.

[0122] In some embodiments, the drive device 100 further includes a controller that can be electrically connected to the directional valve 150, the flow control valve, and the hydraulic pump 210 to control the operation of the directional valve 150, the flow control valve, and the hydraulic pump 210.

[0123] According to a second aspect of this application, a kicking simulation device 10 is provided, including a drive element 200 and a drive device 100 as described above.

[0124] The kicking simulation device 10 in this embodiment includes the drive device 100 described above, and therefore has all the beneficial effects of the drive device 100 described above, which will not be repeated here.

[0125] In this embodiment, the drive component 200 can be constructed as a simulated leg, which can more realistically simulate the scene of a person opening or closing the tailgate.

[0126] In summary, the kicking simulation device 10 in this embodiment uses hydraulic drive instead of motor drive. During EMC testing, only the hydraulic drive component 110 and transmission component 120 need to be installed in the electromagnetic environment. Hydraulic oil is transmitted to the hydraulic drive component through the hydraulic oil circuit to achieve the reciprocating motion of the hydraulic drive component, which drives the transmission component to drive the swinging component to swing, thereby driving the driven component to rotate and thus realizing the simulated kicking action. The design scheme of this application realizes the simulated kicking action without introducing additional radiation emission sources for EMC testing. At the same time, the laboratory is full of mechanical parts and will not be affected by immunity testing, thus preventing abnormal operation.

[0127] In the description of this application, 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0128] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0129] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0130] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A driving device (100), characterized in that, The driving device (100) is used to drive the driven component (200) to rotate in an electromagnetic environment; the driving device (100) includes: Hydraulic flow path (100a) is used to supply hydraulic medium; The hydraulic drive unit (110) includes a hydraulic telescopic rod (111) that moves in a first direction under the action of the hydraulic medium; The transmission assembly (120) is located between the hydraulic telescopic rod (111) and the driven component (200); The transmission assembly (120) includes an active transmission component (121) and a passive transmission component (122) that are meshed together. The active transmission component (121) is connected to the hydraulic telescopic rod (111), and the passive transmission component (122) is connected to the driven component (200). The active transmission component (121) moves along a first direction under the action of the hydraulic telescopic rod (111) to drive the passive transmission component (122) to drive the driven component (200) to rotate around a second direction. The rotation axis (10g) of the passive transmission component (122) is collinear with the rotation axis (10g) of the driven component (200).

2. The driving device (100) according to claim 1, characterized in that, The transmission assembly (120) is configured as a meshing gear and rack structure; The rack is connected to the hydraulic telescopic rod (111), and the gear is connected to the drive component (200) in a transmission connection.

3. The driving device (100) according to claim 1, characterized in that, The transmission assembly (120) also includes: A swing arm (123) is used to connect the driven component (200) and the passive transmission component (122); The swing axis of the swing rod (123) is collinear with the rotation axis (10g) of the passive transmission member (122) and the rotation axis (10g) of the driven member (200).

4. The driving device (100) according to claim 1, characterized in that, The drive unit (100) further includes: A base (130) for mounting the transmission assembly (120) and the hydraulic drive (110); A limit switch (140) is used to limit the displacement of the active transmission member (121) relative to the hydraulic drive member (110); The limit switch (140) is located on one side of the active transmission member (121).

5. The driving device (100) according to any one of claims 1 to 4, characterized in that, The drive unit (100) further includes: A directional valve (150) is located in the hydraulic flow path (100a); A hydraulic pump (210) is used to pump hydraulic medium to a hydraulic drive unit (110); The reversing valve (150) is located between the hydraulic pump (210) and the hydraulic drive unit (110). The hydraulic medium flows to the hydraulic drive unit (110) through the reversing valve (150) under the action of the hydraulic pump (210).

6. The driving device (100) according to claim 5, characterized in that, The hydraulic flow path (100a) includes: A first flow path (100a1) is used to communicate with the first chamber (110a) of the hydraulic drive (110); The second flow path (100a2) is used to connect to the medium source; The reversing valve (150) includes: The first connection port (151) is used to connect to the first flow path (100a1); The second connection port (152) is used to communicate with the second flow path (100a2); The reversing valve (150) has a first working state. In the first working state, the first connection port (151) is connected to the second connection port (152) so that the medium of the second flow path (100a2) flows to the first flow path (100a1) through the second connection port (152) and the first connection port (151).

7. The driving device (100) according to claim 6, characterized in that, The hydraulic flow path (100a) also includes: The third flow path (100a3) is used to communicate with the second chamber (110b) of the hydraulic drive (110); The reversing valve (150) also includes: The third connection port (153) is used to communicate with the third flow path (100a3); In the first working state, the third connection port (153) is connected to the fourth connection port (154) so ​​that the medium of the third flow path (100a3) flows through the third connection port (153) to the fourth connection port (154).

8. The driving device (100) according to claim 7, characterized in that, The reversing valve (150) also has a second operating state; In the second working state, the second connection port (152) is connected to the third connection port (153) so that the medium of the second flow path (100a2) flows to the third flow path (100a3) through the second connection port (152) and the third connection port (153); In the second operating state, the first connection port (151) is connected to the fourth connection port (154) so ​​that the medium of the first flow path (100a1) flows through the first connection port (151) to the fourth connection port (154).

9. The driving device (100) according to claim 6, characterized in that, The hydraulic flow path (100a) also includes: The fourth flow path (100a4) is used to receive hydraulic medium from the first chamber (110a) or the second chamber (110b) of the hydraulic drive (110); The drive unit (100) further includes: The first flow control valve (190) is used to control the flow rate of the medium on the fourth flow path (100a4); The first flow control valve (190) is located in the fourth flow path (100a4).

10. The driving device (100) according to claim 6, characterized in that, The drive unit (100) further includes: The second flow control valve (160) is used to control the flow rate of the hydraulic medium in the second flow path (100a2); The hydraulic flow path (100a) also includes: The fifth flow path (100a5) is used to connect with the second flow path (100a2); The second flow control valve (160) is located in the fifth flow path (100a5).

11. A kicking simulation device (10), characterized in that, It includes the drive unit (200) and the drive device (100) as described in any one of claims 1 to 10.

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