CN112782517A - Electromagnetic emission module position appearance adjusting device and electric automobile electromagnetic compatibility test rack - Google Patents

Abstract

The invention provides an electromagnetic emission module pose adjusting device and an electric vehicle electromagnetic compatibility test bench, wherein the electromagnetic emission module pose adjusting device comprises a fixed platform, a fixed platform and a six-axis freedom parallel robot, wherein the fixed platform is arranged in a main body frame or on the ground, the fixed platform is parallel to the fixed platform and is arranged at intervals, the six-axis freedom parallel robot is arranged between the fixed platform and the movable platform, the three groups of six-axis freedom parallel robots are only needed to jointly control the movement of the fixed platform, the pitching angle of an electromagnetic emission module is automatically and comprehensively adjusted, and then test parameters under working conditions that the electromagnetic emission module and an electromagnetic receiving module are staggered or have angular deviation and the like are adjusted. Therefore, the electromagnetic compatibility test system can be used for truly simulating the vehicle type of the electric vehicle and the actual parking condition of the vehicle aiming at the real application scene that the dislocation or the angle deviation exists between the electromagnetic receiving module and the electromagnetic transmitting module of the wireless charging system of the electric vehicle, and carrying out efficient, accurate and comprehensive electromagnetic compatibility test on the wireless charging system of the electric vehicle.

Description

Electromagnetic emission module position appearance adjusting device and electric automobile electromagnetic compatibility test rack

Technical Field

The invention belongs to the technical field of electromagnetic compatibility testing of an electric vehicle wireless charging system, and particularly relates to an electromagnetic emission module pose adjusting device and an electric vehicle electromagnetic compatibility testing rack.

Background

Currently, an electromagnetic receiving module for simulating an electromagnetic receiving module of a wireless charging system of an electric vehicle and an electromagnetic transmitting module for simulating an electromagnetic transmitting module of a wireless charging system of an electric vehicle are generally fixedly mounted on an electromagnetic compatibility testing bench of the electric vehicle. In the process of carrying out electromagnetic compatibility test on the wireless charging system of the electric automobile, because the position and the posture of the electromagnetic transmitting module can not be freely adjusted, the electromagnetic compatibility test can be carried out on the wireless charging system of the electric automobile only by simulating the condition that the electromagnetic receiving module and the electromagnetic transmitting module of the wireless charging system of the electric automobile are opposite to each other. Therefore, the model of the electric automobile and the actual parking condition of the automobile cannot be truly simulated, and the electromagnetic compatibility test can be performed on the wireless charging system of the electric automobile under the actual application scene that the relative positions of the electromagnetic receiving module and the electromagnetic transmitting module of the wireless charging system of the electric automobile are staggered or angularly deviated, so that the electromagnetic compatibility test can not be performed on the wireless charging system of the electric automobile comprehensively and accurately, and the reliability of safe and stable operation of the system is seriously influenced.

Disclosure of Invention

The embodiment of the invention aims to provide an electromagnetic emission module pose adjusting device capable of freely adjusting the position and the posture of an electromagnetic emission module, so that in the electromagnetic compatibility test process of an electric vehicle, aiming at the real application scene that dislocation or angle deviation exists between an electromagnetic receiving module and the electromagnetic emission module of a wireless charging system of the electric vehicle, the model of the electric vehicle and the actual parking condition of the vehicle are truly simulated, and accurate and reliable electromagnetic compatibility test is carried out on the wireless charging system of the electric vehicle.

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides an electromagnetic emission module position appearance adjusting device for the anti-electromagnetic interference test of wireless charging system radiation emission of electric automobile, includes:

fixing a platform;

the movable platform is used for supporting and fixing the electromagnetic emission module of the wireless charging system, and the movable platform and the fixed platform are parallel and arranged at intervals; and

the six-axis freedom parallel robot is arranged between the fixed platform and the movable platform and is used for controlling the movable platform through the six-axis freedom to adjust the offset angle between the electromagnetic transmitting module and the electromagnetic receiving module of the wireless charging system;

the number of the six-axis-of-freedom parallel robots is set to be three groups, the six-axis-of-freedom parallel robots are arranged on the fixed platform at equal intervals along the circumferential direction of the fixed platform, each six-axis-of-freedom parallel robot comprises two six-axis robot parts arranged side by side, and the six-axis robot parts are respectively connected with the fixed platform and the movable platform.

Furthermore, each six-axis robot component comprises an electric cylinder, a first force arm, a first joint component, a second force arm and a second joint component, wherein the first force arm is fixedly connected with a cylinder body of the electric cylinder at a first end, the second joint component is used for movably connecting a second end of the first force arm to the fixed platform, the first end of the second force arm is connected with a telescopic rod of the electric cylinder, the second joint component is used for movably connecting a second end of the second force arm to the movable platform, the first joint component comprises a first bearing seat fixedly arranged on the fixed platform, a first bearing arranged on the first bearing seat, a first rotating connecting piece, the first end of the first rotating connecting piece is rotatably arranged on the first bearing seat through the first bearing, and a first fixing shaft rotatably connected with the second end of the first rotating connecting piece, the first fixing shaft is fixedly connected to the second end of the first force arm, and the axial direction of the first fixing shaft is perpendicular to the length direction of the first force arm, the axial direction of the first rotating connecting piece is vertical to the axial direction of the first fixed shaft, the first end of the second force arm is rotatably connected with one end of the telescopic rod far away from the cylinder body, the central axis of the second force arm is collinear with the central axis of the telescopic rod, the second joint component comprises a second bearing seat fixedly arranged on the movable platform, a second bearing arranged on the second bearing seat, and a second rotating connecting piece, the first end of which is rotatably arranged on the second bearing seat through the second bearing, and a second fixed shaft rotatably connected to a second end of the second rotary connector, the second fixed shaft being fixedly connected to a second end of the second force arm, the axial direction of the second fixed shaft is perpendicular to the length direction of the second force arm, and the axial direction of the second rotating connecting piece is perpendicular to the axial direction of the second fixed shaft.

Furthermore, the first rotating connecting piece comprises a first rod shaft section which is rotatably installed on the first bearing seat through the first bearing and a first hinged section which is used for being connected with the first fixing shaft in a rotating mode, a first installation hole for the first fixing shaft to penetrate through is formed in the first hinged section, a first lining is installed in the first installation hole, the first fixing shaft penetrates through the first installation hole, and the first lining is sleeved on the first fixing shaft.

Furthermore, a first avoiding groove for avoiding the first hinge section is formed in the second end of the first force arm, first jacks for allowing two ends of the first fixing shaft to be placed in are respectively formed in the side walls of two opposite sides of the first avoiding groove, and two ends of the first fixing shaft are respectively inserted into and fixed in the corresponding first jacks.

Furthermore, the second rotary connecting piece comprises a second rod shaft section which is rotatably installed on the second bearing seat through the second bearing and a second hinged section which is used for being connected with the second fixing shaft in a rotating mode, a second mounting hole for the second fixing shaft to penetrate through is formed in the second hinged section, a second lining is installed in the second mounting hole, the second fixing shaft penetrates through the second mounting hole, and the second lining is sleeved on the second fixing shaft.

Furthermore, a second avoiding groove for avoiding the second hinged section is formed in the second end of the second force arm, second jacks for placing the second fixing shaft into are respectively formed in the side walls of the two opposite sides of the second avoiding groove, and the two ends of the second fixing shaft are respectively inserted into and fixed in the corresponding second jacks.

Further, the central axis of the vertical projection of each first rotating connecting piece on the fixed platform is intersected with the central axis of the vertical projection of the corresponding second rotating connecting piece on the fixed platform, and the included angle is 45-75 degrees.

Further, electromagnetic emission module position appearance adjusting device still including be used for right the position adjustment subassembly that electromagnetic emission module's position was adjusted, the position adjustment subassembly including set up in pairs in move the last in order to be used for the centre gripping and fix a position electromagnetic emission module's grip block, and will correspond the grip block supports to press to be fixed in move the first bolt on the platform, it is corresponding to be equipped with the confession on the platform move the first regulation hole that first bolt passed, each be equipped with on the grip block supply correspondingly first bolt passes the hole that passes.

Furthermore, the fixed platform is provided with a caster and a telescopic supporting leg.

Another objective of the embodiments of the present invention is to provide an electric vehicle electromagnetic compatibility testing bench with an electromagnetic emission module pose adjusting device, so as to perform an accurate and reliable electromagnetic compatibility test on an electric vehicle wireless charging system, in a process of an electric vehicle electromagnetic compatibility testing, aiming at a real application scenario that a dislocation or an angle offset exists between an electromagnetic receiving module and an electromagnetic emission module of the electric vehicle wireless charging system, and truly simulate a vehicle type of the electric vehicle and an actual parking situation of the vehicle.

In order to achieve the purpose, the invention adopts the technical scheme that: the electromagnetic compatibility test bench for the electric automobile comprises the electromagnetic emission module pose adjusting device.

Compared with the prior art, one or more technical schemes in the embodiment of the invention have at least one of the following beneficial effects:

according to the electromagnetic emission module pose adjusting device and the electric automobile electromagnetic compatibility test bench in the embodiment of the invention, the electromagnetic emission module pose adjusting device only needs three groups of six-axis freedom degree parallel robots to jointly control the motion of the moving platform in a three-dimensional space, so that various different position poses of the moving platform can be automatically and omnidirectionally adjusted, the purpose of freely and omnidirectionally adjusting the position poses of the electromagnetic emission module is achieved, and further test parameters under various working conditions such as dislocation or angular deviation of the electromagnetic emission module and the electromagnetic receiving module can be freely and omnidirectionally adjusted. Therefore, in the electromagnetic compatibility test process of the electric vehicle, the actual application scene of dislocation or angle deviation exists between the electromagnetic receiving module and the electromagnetic transmitting module of the wireless charging system of the electric vehicle, the model of the electric vehicle and the actual parking condition of the vehicle are truly simulated, the application scene of wireless charging of the wireless charging system of the electric vehicle is fully considered, efficient, accurate and comprehensive electromagnetic compatibility test can be performed on the wireless charging system of the electric vehicle, and the reliability of safe and stable operation of the wireless charging system of the electric vehicle is guaranteed.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a front view of an electromagnetic compatibility testing bench for an electric vehicle according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of an electromagnetic compatibility test bench of an electric vehicle according to an embodiment of the present invention;

FIG. 3 is a partially exploded view of an electromagnetic compatibility testing stand for an electric vehicle according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of an electromagnetic receiving module position adjusting device according to an embodiment of the present invention;

fig. 5 is a partially exploded view of an electromagnetic receiving module position adjusting device according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of an electromagnetic emission module pose adjusting apparatus according to an embodiment of the present invention;

fig. 7 is another schematic perspective view of an electromagnetic emission module pose adjusting apparatus according to an embodiment of the present invention;

FIG. 8 is a partially exploded view of an electromagnetic emission module pose adjustment apparatus provided by an embodiment of the present invention;

FIG. 9 is a schematic perspective view of a six-axis robot component according to an embodiment of the present invention;

FIG. 10 is an exploded view of a six-axis robot component provided by an embodiment of the present invention;

fig. 11 is a schematic perspective view of a second force arm according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1-a body frame; 11-a polygonal frame; 12-a connecting column;

2-electromagnetic receiving module position adjusting device; 21-a support beam; 211-a second adjustment aperture; 22-a clamping bar; 221-second pass-through aperture; 222-a positioning step; 23-a second bolt; 24-an inverted L-shaped bracket; 241-horizontal support arms; 242-vertical support arms; 243-third pass through hole; 25-a third bolt;

3-an electromagnetic emission module pose adjusting device; 31-fixing a platform; 311-casters; 312-supporting feet; 32-moving the platform; 321-a second adjustment aperture; 33-six-axis degree of freedom parallel robot; 331-an electric cylinder; 3311-cylinder body; 3312-telescoping rod; 3313-drive; 3314-vertical shaft; 332-a first moment arm; 3321-first avoidance slot; 3322-first receptacle; 333-a first joint component; 3331-first bearing block; 3332-first bearing; 3333-first fixed axis; 3334-first rotational connection; 3335-first mandrel segment; 3336-first hinge segment; 3337-first mounting hole; 334-a second moment arm; 3341-second avoidance slot; 3342-second receptacle; 3343-rotating shaft; 335-a second joint component; 3351-second bearing block; 3352-second bearing; 3353-second fixed axis; 3354-second rotational connection; 3355-second shaft segment; 3356-second hinge segment; 3357-second mounting hole; 34-a first bushing; 35-a second bushing; 36-a position adjustment assembly; 361-a clamping block; 3611 — first adjustment aperture; 362-first bolt;

4-a steel plate; 5-shield plate 6-third bearing; 7-an electromagnetic emission module;

8-an electromagnetic receiving module; 9-annular stop plate.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "connected" or "disposed" to another element, it can be directly on the other element or be indirectly connected to the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in some embodiments" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Referring to fig. 6 to 10 together, the electromagnetic emission module pose adjustment apparatus according to the embodiment of the present invention will now be described. The electromagnetic emission module pose adjusting device provided by the embodiment of the invention is suitable for an electromagnetic compatibility test bench of an electric automobile so as to test the anti-electromagnetic interference of the radiation emission of a wireless charging system of the electric automobile. The electromagnetic emission module pose adjusting device 3 provided by the embodiment of the invention comprises a fixed platform 31, a fixed platform 31 and a six-axis freedom parallel robot 33, wherein the fixed platform 31 is arranged in a main body frame 1 or on the ground, the fixed platform 31 is parallel to the fixed platform 31 and is arranged at intervals, the six-axis freedom parallel robot 33 is arranged between the fixed platform 31 and the movable platform 32, the movable platform 32 is used for supporting and fixing an electromagnetic emission module 7 of a wireless charging system, and the six-axis freedom parallel robot 33 is used for controlling the movable platform 32 through the six-axis freedom to adjust the offset angle between the electromagnetic emission module 7 and an electromagnetic receiving module 8 of the wireless charging system. Referring to fig. 6 to 8, the number of the six-axis-of-freedom parallel robots 33 is set to three groups, the three groups of six-axis-of-freedom parallel robots 33 are arranged on the fixed platform 31 at equal intervals along the circumferential direction of the fixed platform 31, each six-axis-of-freedom parallel robot 33 includes two six-axis robot parts arranged side by side, and the two six-axis robot parts are connected to the fixed platform 31 and the movable platform 32, respectively. When the electric vehicle electromagnetic compatibility test system works, the three groups of six-axis freedom parallel robots 33 control the moving platform 32 to act in a three-dimensional space, various different position postures (pitching postures) of the moving platform 32 are automatically and omnidirectionally adjusted, the position posture (pitching angle) of the electromagnetic emission module 7 arranged on the moving platform 32 is freely adjusted, so that the test parameters under various working conditions such as relative position deviation of the electromagnetic emission module 7 and the electromagnetic receiving module 8 and angle deviation of the electromagnetic emission module 7 and the electromagnetic receiving module 8 due to inclination can be freely adjusted, in the process of electric vehicle electromagnetic compatibility test, aiming at a real application scene of dislocation or angle deviation between the electromagnetic receiving module 8 and the electromagnetic emission module 7 of the electric vehicle wireless charging system, the vehicle type and the actual parking condition of the electric vehicle are truly simulated, and the application scene of wireless charging of the electric vehicle wireless charging system is fully considered, the electromagnetic compatibility test can be efficiently, accurately and comprehensively carried out on the wireless charging system of the electric automobile, and the reliability of safe and stable operation of the wireless charging system of the electric automobile is guaranteed.

Compared with the prior art, the electromagnetic emission module pose adjusting device 3 provided by the embodiment of the invention only needs three groups of six-axis-of-freedom parallel robots 33 to jointly control the motion of the moving platform 32 in a three-dimensional space, automatically and omnidirectionally adjust various different position poses (pitching poses) of the moving platform 32, achieve the purpose of freely and omnidirectionally adjusting the position poses (pitching angles) of the electromagnetic emission module 7, and further can freely and omnidirectionally adjust test parameters under various working conditions such as dislocation or angular deviation of the electromagnetic emission module 7 and the electromagnetic receiving module 8. Therefore, in the electromagnetic compatibility test process of the electric vehicle, the actual application scene of dislocation or angular deviation exists between the electromagnetic receiving module 8 and the electromagnetic transmitting module 7 of the wireless charging system of the electric vehicle, the model of the electric vehicle and the actual parking condition of the vehicle are truly simulated, the application scene of wireless charging of the wireless charging system of the electric vehicle is fully considered, the efficient, accurate and comprehensive electromagnetic compatibility test can be carried out on the wireless charging system of the electric vehicle, and the reliability of safe and stable operation of the wireless charging system of the electric vehicle is guaranteed.

Referring to fig. 9 and 10 in combination, in some embodiments, each six-axis robot assembly includes an electric cylinder 331, a first arm 332 having a first end fixedly connected to a cylinder body of the electric cylinder 331, a first joint assembly 333 movably connecting a second end of the first arm 332 to the fixed platform 31, a second arm 334 having a first end connected to a telescopic rod of the electric cylinder 331, a second joint assembly 335 movably connecting a second end of the second arm 334 to the movable platform 32, the first joint assembly 333 including a first bearing seat 3331 fixedly disposed on the fixed platform 31, a first bearing 3332 mounted on the first bearing seat 3331, a first rotary connecting member 3334 rotatably mounted on the first bearing seat 3331 through the first bearing 3332 at a first end, and a first fixed shaft 3333 rotatably connected to a second end of the first rotary connecting member 3334, the first fixed shaft 3333 being fixedly connected to the second arm of the first arm 332, the axial direction of the first fixed shaft 3333 is perpendicular to the length direction of the first force arm 332, and the axial direction of the first rotary connecting piece 3334 is perpendicular to the axial direction of the first fixed shaft 3333, the first end of the second force arm 334 is rotatably connected with one end of the telescopic rod far away from the cylinder body, and the central axis of the second force arm 334 is collinear with the central axis of the telescopic rod, the second joint assembly 335 comprises a second bearing seat 3351 fixedly arranged on the movable platform 32, a second bearing 3352 arranged on the second bearing seat 3351, a second rotary connecting member 3354 with a first end rotatably arranged on the second bearing seat 3351 through the second bearing 3352, and a second fixed shaft 3353 rotatably coupled to a second end of the second rotary connecting member 3354, the second fixed shaft 3353 being fixedly coupled to a second end of the second force arm 334, the second fixed shaft 3353 having an axial direction perpendicular to a length direction of the second force arm 334, and the axial direction of the second rotary connector 3354 is perpendicular to the axial direction of the second fixed shaft 3353. Specifically, referring to fig. 6, in one embodiment, a central axis of a vertical projection of each first rotating connecting member 3334 on the fixed platform 31 intersects a central axis of a vertical projection of a corresponding second rotating connecting member 3354 on the fixed platform 31, and the included angle is 45 ° to 75 °. In this embodiment, a first force arm 332 is movably connected between the cylinder body of the electric cylinder 331 and the fixed platform 31 through a first joint component 333, a second force arm 334 is movably connected between the telescopic rod of the electric cylinder 331 and the fixed platform 31 through a second joint component 335, when the driver of the electric cylinder 331 drives the telescopic rod to extend and retract, each first force arm 332 and each second force arm 334 work together, the height of the electromagnetic emission module 7 on the movable platform 32 can be adjusted, and simultaneously, the electromagnetic emission module 7 on the movable platform 32 can be adjusted in six degrees of freedom and in all directions, due to the arrangement of the first force arm 332 and the first joint component 333 and the second force arm 334 and the second joint component 335, the structural stability of the electromagnetic emission module pose adjusting device 3 is enhanced, the movable platform 32 can stably support the electromagnetic emission module 7, and the flexibility of the electromagnetic emission module pose adjusting device 3 is increased.

Referring to fig. 9 and 10, in some embodiments, the first rotating connector 3334 includes a first shaft section 3335 rotatably mounted on the first bearing housing 3331 by a first bearing 3332, and a first hinge section 3336 rotatably connected to the first fixed shaft 3333, the first hinge section 3336 has a first mounting hole 3337 for the first fixed shaft 3333 to pass through, a first bushing 34 is mounted in the first mounting hole 3337, the first fixed shaft 3333 passes through the first mounting hole 3337, and the first bushing 34 is sleeved on the first fixed shaft 3333. In this embodiment, the first rotary connection member 3334 includes a first shaft section 3335 and a first hinge section 3336 integrally formed with the first shaft section 3335, and the first shaft section 3335 is rotatably mounted on the first bearing seat 3331 only by the first bearing 3332, and is rotatably connected to the first fixed shaft 3333 by the first hinge section 3336, so that the multi-degree-of-freedom rotational connection between the first force arm 332 and the fixed platform 31 can be realized, the structural stability of the connection is good, and the flexibility of the relative swing between the first force arm 332 and the fixed platform 31 is enhanced. In addition, the first hinge section 3336 is provided with a first mounting hole 3337 for the first fixing shaft 3333 to pass through, the first mounting hole 3337 is internally provided with a first bushing 34, the first fixing shaft 3333 passes through the first mounting hole 3337, and the first bushing 34 is sleeved on the first fixing shaft 3333, so that the flexibility of the relative swinging between the first force arm 332 and the fixed platform 31 is further enhanced.

Referring to fig. 9 and 10, in some embodiments, the second end of the first arm 332 is provided with a first avoiding groove 3321 for avoiding the first hinge section 3336, side walls of two opposite sides of the first avoiding groove 3321 are respectively provided with a first insertion hole 3322 for inserting two ends of the first fixing shaft 3333, and two ends of the first fixing shaft 3333 are respectively inserted into and fixed to the corresponding first insertion holes 3322. In this embodiment, the second end of the first force arm 332 is provided with a first avoiding groove 3321 avoiding the first hinge section 3336, and the side walls of the two opposite sides of the first avoiding groove 3321 are respectively provided with a first insertion hole 3322, and only by placing the two ends of the first fixing shaft 3333 into the corresponding first insertion holes 3322, the first fixing shaft 3333 can be fixedly disposed on the first force arm 332, and the first fixing shaft 3333 is disposed in the first avoiding groove 3321, so that the structural stability of the rotational connection between the first force arm 332 and the first rotational connection member 3334 is further improved, and the interference between the first force arm 332 and the first rotational connection member 3334 can be avoided.

Referring to fig. 9 and 10, in some embodiments, the second rotary connector 3354 includes a second shaft section 3355 rotatably mounted on the second bearing housing 3351 through a second bearing 3352, and a second shaft section 3356 rotatably connected to a second fixed shaft 3353, the second shaft section 3356 is provided with a second mounting hole 3357 for the second fixed shaft 3353 to pass through, the second mounting hole 3357 is provided with a second bushing 35, the second fixed shaft 3353 passes through the second mounting hole 3357, and the second bushing 35 is sleeved on the second fixed shaft 3353. In this embodiment, the second rotary connection member 3354 includes a second shaft section 3355 and a second shaft section 3356 integrally formed with the second shaft section 3355, and the second shaft section 3355 is rotatably mounted on the second bearing seat 3351 only by the second bearing 3352, and the second shaft section 3356 is rotatably connected to the second fixed shaft 3353, so that the multi-degree-of-freedom rotary connection between the second force arm 334 and the fixed platform 31 can be realized, the connection structural stability is good, and the flexibility of the relative swing between the second force arm 334 and the movable platform 32 is enhanced. In addition, the second shaft section 3356 is provided with a second mounting hole 3357 for the second fixed shaft 3353 to pass through, the second mounting hole 3357 is internally provided with the second bushing 35, the second fixed shaft 3353 passes through the second mounting hole 3357, and the second bushing 35 is sleeved on the second fixed shaft 3353, so that the flexibility of the relative swing between the second force arm 334 and the movable platform 32 is further enhanced.

Referring to fig. 9 and 10, in some embodiments, the second end of the second arm 334 is provided with a second avoiding groove 3341 for avoiding the second rod shaft section 3356, side walls of two opposite sides of the second avoiding groove 3341 are respectively provided with a second insertion hole 3342 for inserting the second fixing shaft 3353, and two ends of the second fixing shaft 3353 are respectively inserted and fixed in the corresponding second insertion holes 3342. In this embodiment, a second avoiding groove 3341 avoiding the second shaft section 3356 is formed at the second end of the second force arm 334, and second insertion holes 3342 are respectively formed on the side walls of the second avoiding groove 3341 at two opposite sides, so that the second fixing shaft 3353 can be fixedly disposed on the second force arm 334 only by respectively inserting two ends of the second fixing shaft 3353 into the corresponding second insertion holes 3342, and the second fixing shaft 3353 is disposed in the second avoiding groove 3341, thereby further improving the structural stability of the rotational connection between the second force arm 334 and the second rotational connection member 3354, and simultaneously avoiding the interference between the second force arm 334 and the second rotational connection member 3354.

Referring to fig. 10, in some embodiments, an end of the telescopic rod 3312 away from the cylinder body is provided with a vertical shaft 3314 extending along an axial direction of the telescopic rod 3312, the second force arm 334 is provided with a rotating shaft 3343 for the vertical shaft 3314 to be rotatably inserted, the rotating shaft 3343 is provided with a third bearing 6 therein, and the third bearing 6 is sleeved on the vertical shaft 3314. In this embodiment, a vertical shaft 3314 is disposed at one end of the telescopic rod 3312 away from the cylinder body along an axial direction of the telescopic rod 3312, and a rotating shaft 3343 is disposed on the second force arm 334 for the vertical shaft 3314 to be rotatably inserted, so that the second force arm 334 can be rotatably mounted at one end of the telescopic rod 3312 away from the cylinder body by simply rotatably inserting the vertical shaft 3314 into the rotating shaft 3343. In addition, the third bearing 6 is installed in the rotation shaft 3343, and the third bearing 6 is sleeved on the vertical shaft 3314, so that the flexibility of the relative rotation between the second force arm 334 and the telescopic rod 3312 is further enhanced, and the rotation accuracy is improved.

Referring to fig. 10 and 11, in some embodiments, the extension rod 3312 is sleeved with an annular stop plate 9 for stopping the second arm 334, and the extension rod 3312 is provided with an annular step for mounting and fixing the annular stop plate 9 at a position adjacent to the vertical shaft 3314. In this embodiment, an annular step is formed on the extension rod 3312 adjacent to the vertical shaft 3314, and only by mounting and fixing the annular stop plate 9 on the annular step, the annular stop plate 9 can stop the second force arm 334 to control the insertion depth of the vertical shaft 3314 into the rotation shaft 3343 of the second force arm 334, so as to prevent the end surface of the vertical shaft 3314 far from the extension rod 3312 from contacting and wearing the bottom surface of the rotation shaft 3343, and to prevent interference between the relative rotation between the second force arm 334 and the extension rod 3312.

Referring to fig. 7 and 8 in combination, in some embodiments, the electromagnetic emission module pose adjusting apparatus 3 further includes a position adjusting assembly 36 for adjusting the position of the electromagnetic emission module 7, the position adjusting assembly 36 includes clamping blocks 361 which are arranged on the movable platform 32 in pairs for clamping and positioning the electromagnetic emission module 7, and first bolts 362 which press and fix the corresponding clamping blocks 361 on the movable platform 32, the movable platform 32 is provided with a plurality of first adjusting holes 321 through which the corresponding first bolts 362 pass, and each clamping block 361 is provided with a first through hole 3611 through which the corresponding first bolt 362 passes. In this embodiment, the position adjusting assembly 36 for adjusting the position of the electromagnetic transmitting module 7 is provided, and only after the positions of two clamping blocks 361 which are oppositely arranged are moved and adjusted, the electromagnetic transmitting module 7 is clamped between the two clamping blocks 361, and the corresponding clamping block 361 is pressed and fixed on the movable platform 32 by the first bolt 362, so as to achieve the purpose of rapidly clamping and positioning the electromagnetic transmitting module 7 to adjust the position of the electromagnetic transmitting module 7, thereby freely adjusting the distance between the electromagnetic transmitting module 7 and the electromagnetic receiving module 8, the relative position offset between the electromagnetic transmitting module 7 and the electromagnetic receiving module 8, and the test parameters under various working conditions such as angular offset of the electromagnetic transmitting module 7 and the electromagnetic receiving module due to inclination, and truly simulating the model of the electric vehicle and the actual parking of the vehicle, so as to fully consider the application scenario of the wireless charging system of the electric vehicle for wireless charging, the electromagnetic compatibility test can be efficiently, accurately and comprehensively carried out on the wireless charging system of the electric automobile, and the reliability of safe and stable operation of the wireless charging system of the electric automobile is guaranteed.

Referring to fig. 6 and 7, in some embodiments, the fixed platform 31 is provided with casters 311 and retractable supporting legs 312, so as to retract the retractable supporting legs 312 when the electromagnetic emission module pose adjustment apparatus 3 needs to be moved, and move the electromagnetic emission module pose adjustment apparatus 3 to the test station through the casters 311. After the electromagnetic emission module pose adjusting device 3 is moved to the test station, the telescopic supporting legs 312 are stretched, the electromagnetic emission module pose adjusting device 3 is supported on the test station by the telescopic supporting legs 312, the stability of the fixed platform 31 for supporting the emission module is improved, and the electromagnetic emission module pose adjusting device 3 is prevented from being displaced in the electromagnetic interference test process.

Referring to fig. 1 to 3, in some embodiments, an electromagnetic compatibility testing bench for an electric vehicle is further provided, which includes the electromagnetic emission module pose adjusting apparatus 3 according to any of the embodiments. The electromagnetic compatibility test bench for the electric vehicle provided by the embodiment of the invention has all the characteristics of the electromagnetic emission module pose adjusting device 3 provided by any one of the embodiments, so that the electromagnetic compatibility test bench has the same technical effect as the electromagnetic emission module pose adjusting device 3 provided by any one of the embodiments.

Referring to fig. 1 to 5, an electromagnetic compatibility testing bench for an electric vehicle according to an embodiment of the present invention is used for an anti-electromagnetic interference test of a radiation emission of a wireless charging system of an electric vehicle. The electromagnetic compatibility test bench for the electric automobile comprises a main body frame 1, an electromagnetic receiving module position adjusting device 2 and an electromagnetic emitting module pose adjusting device 3, wherein the main body frame 1 comprises two polygonal frames 11 which are arranged in parallel at intervals in an up-down mode and are opposite to each other, and a plurality of connecting columns 12 which connect corresponding corners of the two polygonal frames 11. The electromagnetic receiving module position adjusting device 2 is disposed in the main body frame 1 and located at the upper portion of the main body frame 1, and the position of the electromagnetic receiving module 8 of the wireless charging system can be adjusted by the electromagnetic receiving module position adjusting device 2. The electromagnetic emission module pose adjusting device 3 is arranged in the main body frame 1 and is positioned at the bottom of the main body frame 1, and the offset angle between an electromagnetic emission module 7 of the wireless charging system and an electromagnetic receiving module 8 can be adjusted through the electromagnetic emission module pose adjusting device 3. The electromagnetic emission module pose adjusting device 3 comprises a fixed platform 31, a movable platform 32 used for supporting and fixing an electromagnetic emission module 7 of a wireless charging system, and six-axis freedom parallel robots 33 used for adjusting the electromagnetic emission module 7 on the movable platform 32 through six-axis freedom, wherein the movable platform 32 and the fixed platform 31 are arranged in parallel at intervals, the six-axis freedom parallel robots 33 are arranged between the fixed platform 31 and the movable platform 32, the six-axis freedom parallel robots 33 are arranged in three groups, the three groups of six-axis freedom parallel robots 33 are arranged on the fixed platform 31 at equal intervals along the circumferential direction of the fixed platform 31, each six-axis freedom parallel robot 33 comprises two six-axis robot parts arranged side by side, and the two six-axis robot parts are respectively connected with the fixed platform 31 and the movable platform 32. When the device works, the three groups of six-axis freedom degree parallel robots 33 control the movable platform 32 to act in a three-dimensional space, various different pitching postures of the movable platform 32 are automatically and omnidirectionally adjusted, the pitching angle of the electromagnetic emission module 7 arranged on the movable platform 32 can be freely adjusted, the position of the electromagnetic receiving module 8 of the wireless charging system can be adjusted through the electromagnetic receiving module position adjusting device 2, so that the testing parameters under various working conditions such as relative position deviation of the electromagnetic emission module 7 and the electromagnetic receiving module 8 and angle deviation of the electromagnetic emission module 7 and the electromagnetic receiving module 8 due to inclination can be freely adjusted, and in the electromagnetic compatibility testing process of the electric vehicle, aiming at the real application scene of dislocation or angle deviation between the electromagnetic receiving module 8 and the electromagnetic emission module 7 of the electric vehicle wireless charging system, the model of the electric automobile and the actual parking condition of the vehicle are truly simulated, the application scene that the wireless charging system of the electric automobile is wirelessly charged is fully considered, the high-efficiency, accurate and comprehensive electromagnetic compatibility test can be carried out on the wireless charging system of the electric automobile, and the reliability of safe and stable operation of the wireless charging system of the electric automobile is guaranteed

Compared with the prior art, the electromagnetic compatibility test bench for the electric vehicle provided by the embodiment of the invention only needs to jointly control the brake platform 32 to act in a three-dimensional space through three groups of six-axis-of-freedom parallel robots 33, automatically and omnidirectionally adjust various different pitching postures of the brake platform 32, so as to achieve the purpose of freely and omnidirectionally adjusting the pitching angle of the electromagnetic emission module 7, adjust the position of the electromagnetic reception module 8 of the wireless charging system through the electromagnetic reception module position adjusting device 2, and further freely and omnidirectionally adjust test parameters under various working conditions such as dislocation or angular deviation of the electromagnetic emission module 7 and the electromagnetic reception module 8. Therefore, in the electromagnetic compatibility test process of the electric vehicle, the actual application scene of dislocation or angular deviation exists between the electromagnetic receiving module 8 and the electromagnetic transmitting module 7 of the wireless charging system of the electric vehicle, the model of the electric vehicle and the actual parking condition of the vehicle are truly simulated, the application scene of wireless charging of the wireless charging system of the electric vehicle is fully considered, the efficient, accurate and comprehensive electromagnetic compatibility test can be carried out on the wireless charging system of the electric vehicle, and the reliability of safe and stable operation of the wireless charging system of the electric vehicle is guaranteed.

It can be understood that, in some embodiments, the main body frame 1 is made of PA66 (polyhexamethylene adipamide), ABS plastic, acrylic, or other non-metallic materials that do not refract or reflect electromagnetic waves, so as to reduce the influence of the electric vehicle wireless charging radiation emission test bench on the refraction and reflection of electromagnetic waves, thereby improving the accuracy of the electromagnetic compatibility test of the electric vehicle wireless charging system.

Referring to fig. 2 to 5, in some embodiments, the electromagnetic receiving module position adjusting device 2 includes two supporting beams 21 extending along a first direction and arranged in pairs, two clamping bars 22 extending along a second direction and arranged in pairs for clamping and positioning the electromagnetic receiving module 8, and second bolts 23 for pressing and fixing the clamping bars 22 on the corresponding supporting beams 21, wherein each supporting beam 21 is provided with a second adjusting hole 211 for passing the corresponding second bolt 23, each clamping block 361 is provided with a second passing hole 221 for passing the corresponding second bolt 23, the first direction is perpendicular to the height direction of the main frame 1, the second direction is perpendicular to the height direction of the main frame 1, and the first direction is perpendicular to the second direction. In this embodiment, after the two supporting beams 21 extending in the first direction and arranged in pair and the two clamping strips 22 extending in the second direction and arranged in pair for clamping and positioning the electromagnetic receiving module 8 are moved and adjusted, the electromagnetic transmitting module 7 is clamped between the two clamping strips 22 and the two clamping strips 22 are pressed and fixed on the corresponding supporting beams 21 by the second bolts 23, so as to achieve the purpose of rapidly clamping and positioning the electromagnetic receiving module 8 to adjust the position of the electromagnetic receiving module 8, and thus the relative position deviation between the electromagnetic receiving module 8 and the electromagnetic transmitting module 7 can be freely adjusted, thereby truly simulating the model of the electric vehicle and the actual parking of the vehicle, and fully considering the application scenario of wireless charging of the wireless charging system of the electric vehicle, the wireless charging system of the electric vehicle can be efficiently charged, Accurate and comprehensive electromagnetic compatibility test guarantees the reliability of safe and stable operation of the wireless charging system of the electric automobile.

Referring to fig. 2 and 5, in some embodiments, the electromagnetic receiving module position adjusting device 2 further includes four inverted L-shaped brackets 24 and a third bolt 25 for pressing and fixing the corresponding inverted L-shaped bracket 24 to the main body frame 1, and the two inverted L-shaped brackets 24 respectively support two ends of the corresponding supporting beam 21. Wherein, the horizontal support arm 241 of each inverted-L support 24 is fixedly connected with the corresponding end of the corresponding support beam 21, a third through hole 243 for the third bolt 25 to pass through is arranged on the vertical support arm 242 of each inverted-L support 24, a threaded hole for the third bolt 25 to be matched with is arranged on the main body frame 1, and each third bolt 25 passes through the third through hole 243 and is in threaded connection with the corresponding threaded hole. It is to be understood that the third through hole 243 is a long hole extending in the height direction of the main body frame 1 to facilitate adjustment of the height position of the support beam 21 in the height direction of the main body frame 1, thereby adjusting the distance between the electromagnetic reception module 8 and the electromagnetic transmission module 7.

Referring to fig. 4 and 5, in some embodiments, each of the clamping bars 22 has a positioning step 222 on an inner side thereof for receiving a corresponding edge of the magnetic receiving module 8, the second adjusting hole 211 is a long hole extending in the first direction, and the second bolt 23 passes through the long hole. In this embodiment, the positioning step 222 is provided on the inner side of each clamping bar 22, and the stability of the electromagnetic receiving module 8 clamped between two modules can be enhanced by only placing the corresponding edge of the electromagnetic receiving module 8 on the corresponding positioning step 222. Moreover, the second adjusting hole 211 is a long hole extending along the first direction, so that the clamping strip can be moved along the first direction to continuously adjust the displacement of the electromagnetic receiving module 8, and the clamping strip can be adapted to clamping and fixing the electromagnetic receiving modules 8 with different sizes, and the universality is good.

Referring to fig. 1, 4 and 5, in some embodiments, the electric vehicle electromagnetic compatibility testing stand further includes a steel plate 4 for simulating a vehicle body of the electric vehicle, and a shielding plate 5 for shielding electromagnetic waves by being disposed between the steel plate 4 and the electromagnetic receiving module 8, wherein the steel plate 4 is located above the electromagnetic receiving module 8 and fixed in the main body frame 1, and the shielding plate 5 is fixed on a surface of the steel plate 4 facing the electromagnetic receiving module 8. In the embodiment, the body of the electric automobile is simulated through the steel plate 4, various application scenes of wireless charging of the wireless charging system of the electric automobile are fully considered, efficient, accurate and comprehensive electromagnetic compatibility testing can be performed on the wireless charging system of the electric automobile, and the reliability of safe and stable operation of the wireless charging system of the electric automobile is guaranteed. And, set up the shielding plate 5 used for electromagnetic shielding between steel sheet 4 and electromagnetic receiving module 8, the area of steel sheet 4 is greater than the area of shielding plate 511, carries out the electromagnetic shielding through shielding plate 5, improves the accuracy of electromagnetic compatibility test.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides an electromagnetic emission module position appearance adjusting device for the anti-electromagnetic interference test of wireless charging system radiation emission of electric automobile, its characterized in that includes:

fixing a platform;

the movable platform is used for supporting and fixing the electromagnetic emission module of the wireless charging system, and the movable platform and the fixed platform are parallel and arranged at intervals; and

the six-axis freedom parallel robot is arranged between the fixed platform and the movable platform and is used for controlling the movable platform through the six-axis freedom to adjust the offset angle between the electromagnetic transmitting module and the electromagnetic receiving module of the wireless charging system;

the number of the six-axis-of-freedom parallel robots is set to be three groups, the six-axis-of-freedom parallel robots are arranged on the fixed platform at equal intervals along the circumferential direction of the fixed platform, each six-axis-of-freedom parallel robot comprises two six-axis robot parts arranged side by side, and the six-axis robot parts are respectively connected with the fixed platform and the movable platform.

2. The electromagnetic emission module pose adjusting apparatus of claim 1, wherein each of the six-axis robot components comprises an electric cylinder, a first force arm having a first end fixedly connected to a cylinder body of the electric cylinder, a first joint assembly movably connecting a second end of the first force arm to the fixed platform, a second force arm having a first end connected to a telescopic rod of the electric cylinder, and a second joint assembly movably connecting a second end of the second force arm to the movable platform, the first joint assembly comprises a first bearing seat fixedly disposed on the fixed platform, a first bearing mounted on the first bearing seat, a first rotating connecting member rotatably mounted on the first bearing seat through the first bearing at a first end, and a first fixing shaft rotatably connected to a second end of the first rotating connecting member, the first fixing shaft is fixedly connected to the second end of the first force arm, the axial direction of the first fixing shaft is perpendicular to the length direction of the first force arm, the axial direction of the first rotating connecting piece is perpendicular to the axial direction of the first fixing shaft, the first end of the second force arm is rotationally connected with one end, far away from the cylinder body, of the telescopic rod, the central axis of the second force arm is collinear with the central axis of the telescopic rod, the second joint component comprises a second bearing seat fixedly arranged on the movable platform, a second bearing arranged on the second bearing seat, a second rotating connecting piece, the first end of which is rotationally arranged on the second bearing seat through the second bearing, and a second fixing shaft rotationally connected with the second end of the second rotating connecting piece, the second fixing shaft is fixedly connected with the second end of the second force arm, and the axial direction of the second fixing shaft is perpendicular to the length direction of the second force arm, and the axial direction of the second rotating connecting piece is perpendicular to the axial direction of the second fixed shaft.

3. The electromagnetic emission module pose adjusting apparatus of claim 2, wherein the first rotating connector comprises a first rod shaft section rotatably mounted on the first bearing seat through the first bearing, and a first hinge section for rotatably connecting with the first fixed shaft, the first hinge section is provided with a first mounting hole for the first fixed shaft to pass through, a first bushing is mounted in the first mounting hole, the first fixed shaft passes through the first mounting hole, and the first bushing is sleeved on the first fixed shaft.

4. The electromagnetic emission module pose adjusting device of claim 3, wherein a first avoiding groove for avoiding the first hinge section is arranged at the second end of the first force arm, first insertion holes for inserting two ends of the first fixing shaft are respectively arranged on the side walls of two opposite sides of the first avoiding groove, and two ends of the first fixing shaft are respectively inserted and fixed in the corresponding first insertion holes.

5. The electromagnetic emission module pose adjusting apparatus of claim 2, wherein the second rotary connecting member comprises a second rod shaft section rotatably mounted on the second bearing seat through the second bearing, and a second hinge section for rotatably connecting with the second fixed shaft, the second hinge section is provided with a second mounting hole for passing the second fixed shaft, a second bushing is mounted in the second mounting hole, the second fixed shaft passes through the second mounting hole, and the second bushing is sleeved on the second fixed shaft.

6. The electromagnetic emission module pose adjusting device of claim 5, wherein a second avoiding groove for avoiding the second hinge section is arranged at a second end of the second force arm, second insertion holes for the second fixing shaft to be inserted are respectively arranged on the side walls of two opposite sides of the second avoiding groove, and two ends of the second fixing shaft are respectively inserted and fixed in the corresponding second insertion holes.

7. The electromagnetic emission module pose adjustment apparatus of claim 2, wherein the central axis of the vertical projection of each of the first rotary joints on the fixed platform intersects the central axis of the vertical projection of the corresponding second rotary joint on the fixed platform at an angle of 45 ° to 75 °.

8. The electromagnetic emission module pose adjusting device according to claim 1, further comprising a position adjusting assembly for adjusting the position of the electromagnetic emission module, wherein the position adjusting assembly comprises clamping blocks which are arranged on the movable platform in pairs and used for clamping and positioning the electromagnetic emission module, and first bolts which press and fix the corresponding clamping blocks on the movable platform, first adjusting holes for the corresponding first bolts to pass through are arranged on the movable platform, and through holes for the corresponding first bolts to pass through are arranged on each clamping block.

9. The electromagnetic emission module pose adjustment apparatus of any one of claims 1 to 8, wherein the fixed platform is provided with casters and retractable support feet.

10. An electromagnetic compatibility test bench for an electric vehicle, characterized by comprising the electromagnetic emission module pose adjustment apparatus according to any one of claims 1 to 9.

Images