A transverse electromagnetic actuator assembly and a transverse electromagnetic suspension system

Abstract

The application discloses a transverse electromagnetic actuator assembly, which comprises a core support, the core support comprises a core support body, a fixed core is arranged in the core support body, a pair of guide rods are arranged at the bottom of the core support, a left end support is arranged at the left end of the guide rod, a right end support is arranged at the right side of the guide rod, a moving core is arranged between the left end support and the right end support, the moving core is located at the center of the fixed core, the moving core is matched with the fixed core, and a linear motor assembly is formed. The transverse electromagnetic actuator assembly can effectively reduce the unsprung mass, improve the comfort and maneuverability of the vehicle, compared with the traditional form that the actuator is directly installed on the suspension beam.

Description

Technical Field

[0001] This invention relates to an automotive suspension structure, and more specifically, to a transverse electromagnetic actuator assembly. Background Technology

[0002] The suspension system of an automobile is one of the most important subsystems ensuring a smooth ride, safety, and handling. It connects the vehicle body and wheels to ensure normal vehicle operation. In the current passenger car market, passive suspension remains the dominant type of suspension. Lower production and operating costs, along with a simple and reliable structure, are advantages of passive suspension. However, when faced with more complex road conditions and higher requirements for comfort and safety, passive suspension is still inferior to active and semi-active suspension systems. Air suspension and hydropneumatic suspension are currently the main suspension systems used in high-end passenger cars, but they are still inferior to electromagnetic suspension in terms of response speed, energy efficiency, and output range. Electromagnetic suspension includes ball screw type, rack and pinion type, and linear motor type. Active suspension directly driven by a linear motor, with its advantages of rapid response, wide output range, and low energy loss, has become the subject of more research.

[0003] Currently, most research focuses on the study and optimization of linear motor actuators themselves, while research on the matching of linear motors with vehicle bodies and suspensions is relatively limited. Common suspension types for passenger cars include MacPherson strut, double wishbone, and multi-link. While the MacPherson strut suspension system is simple, reliable, and inexpensive, its shock absorbers are constantly subjected to significant bending moments and lateral loads during vehicle operation. The use of irregularly shaped springs can alleviate this phenomenon to some extent, but it cannot fundamentally eliminate the problem. Linear motors rely solely on sliding bearings (slip rings) to ensure precise reciprocating motion between the mover and stator, and most linear motors have an air gap of less than 1mm. Therefore, continuous lateral loads and bending moments lead to rapid wear of the slip rings, resulting in air gap instability and even collisions between the permanent magnet and the windings. Summary of the Invention

[0004] Therefore, it is necessary to provide a horizontal electromagnetic actuator assembly to address the aforementioned technical problems.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A horizontally mounted electromagnetic actuator assembly includes a core support, which comprises a core support body. A fixed core is disposed within the core support body. Four through-hole side sleeves are provided at the bottom of the core support body. A mounting protrusion and a limiting stop are provided on both sides of the core support body. A rotatable core support saddle is provided on the mounting protrusion.

[0007] The bottom of the core support is provided with a pair of guide rods, which pass through the corresponding side sleeves of the core support. The left end of the guide rod is provided with a left end bracket, and the right end of the guide rod is provided with a right end bracket.

[0008] The left end bracket is provided with a pair of left end bracket connection holes and a connecting bracket. The connecting bracket is provided with a pair of connecting holes. The right end bracket is provided with a pair of right end bracket connection holes. The guide rod is connected to the left end bracket connection holes and the right end bracket connection holes.

[0009] A movable iron core is located between the left and right end supports, at the center of the fixed iron core. The movable iron core and the fixed iron core cooperate to form a linear motor assembly. The left end of the movable iron core cooperates with the left end support, and the right end of the movable iron core cooperates with the right end support.

[0010] A spring is provided around the core support. A left spring support is provided on the left side of the spring, and a right spring support is provided on the right side of the spring. The left spring support cooperates with the left end support, and the right spring support cooperates with the limiting stop.

[0011] In a preferred embodiment of the present invention, the main body of the iron core support is cylindrical, and the fixed iron core is cylindrical.

[0012] In a preferred embodiment of the present invention, each of the side sleeves of the iron core support is provided with an annular sliding bearing, and the guide rod passes through the corresponding annular sliding bearing.

[0013] In a preferred embodiment of the present invention, the left end bracket and the right end bracket are arranged in parallel.

[0014] In a preferred embodiment of the present invention, the moving core and the fixed core are coaxially arranged.

[0015] In a preferred embodiment of the present invention, the air gap between the moving core and the fixed core is 1 mm.

[0016] In a preferred embodiment of the present invention, a coil is provided in the fixed iron core.

[0017] In a preferred embodiment of the present invention, the moving core is provided with a plurality of annular permanent magnets and a plurality of stainless steel magnetic isolation washers.

[0018] A transverse electromagnetic suspension system includes a transverse electromagnetic actuator assembly as described above. The transverse electromagnetic actuator assembly is connected to the vehicle's suspension mechanism via a triangular bracket and a support force push rod. The transverse electromagnetic actuator assembly is rotatably connected to the triangular bracket, and the triangular bracket is rotatably connected to the support force push rod.

[0019] In a preferred embodiment of the present invention, the supporting force push rod includes a push rod body, a lower push rod connector is provided at the bottom of the push rod body, a lower push rod connector is provided at the lower push rod connector, and an upper push rod connector is provided at the top of the push rod body, a upper push rod connector is provided at the upper push rod connector, and the push rod body, the lower push rod connector, and the upper push rod connector are all threadedly connected.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1) This invention provides a transverse electromagnetic actuator assembly, which, compared with the traditional form of directly mounting the actuator on the suspension cross arm, can effectively reduce unsprung mass and improve vehicle comfort and handling.

[0022] 2) The transverse electromagnetic actuator assembly is installed on the vehicle body, which makes the size of the linear motor no longer limited, making it possible to install high-power and large-size linear motors, leaving more space inside the wheel, facilitating the design and installation of high-power and large-size hub motors, and reserving sufficient space for designing independent suspensions for hub motors;

[0023] 3) This transverse electromagnetic actuator assembly provides the linear motor with a guide mechanism capable of withstanding lateral shear force and bending moment, such as a double wishbone independent suspension mechanism, which greatly ensures the stability of the linear motor operation and significantly increases its service life. Attached Figure Description

[0024] To more clearly illustrate the solutions in this invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural diagram of the transverse electromagnetic suspension system of the present invention;

[0026] Figure 2 This is an exploded three-dimensional structural diagram of the horizontal electromagnetic actuator assembly of the present invention;

[0027] Figure 3 for Figure 1An exploded three-dimensional structural diagram of the transverse electromagnetic suspension system in the image;

[0028] Figure 4 This is a schematic diagram of the operation of the horizontal electromagnetic actuator assembly of the present invention;

[0029] Figure 5 for Figure 3 A three-dimensional structural diagram of the support force push rod in the middle;

[0030] Figure 6 for Figure 3 A three-dimensional structural diagram of the triangular support in the diagram;

[0031] Figure 7 for Figure 2 A three-dimensional structural diagram of the left end bracket;

[0032] Figure 8 for Figure 2 A three-dimensional structural diagram of the right end bracket;

[0033] Figure 9 for Figure 2 A three-dimensional structural diagram of the iron core support in the diagram. Detailed Implementation

[0034] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention.

[0035] like Figures 1 to 8 As shown, the horizontal electromagnetic actuator assembly S includes a core support 15, which includes a cylindrical core support body 151. A cylindrical fixed core 11 is provided inside the core support body 151. Four through core support side sleeves 152 are provided at the bottom of the core support body 151. An annular sliding bearing 14 is provided inside each of the core support side sleeves 152. A mounting protrusion 153 and a limiting baffle 154 are provided on both sides of the core support body 151. A rotatable core support saddle 16 is provided on the mounting protrusion 153.

[0036] It should be noted that the iron core support saddle 16 is fixed to the vehicle body with bolts. In addition, a coil is provided in the fixed iron core 11.

[0037] The bottom of the iron core support 15 is provided with a pair of guide rods 19, which pass through the corresponding annular sliding bearing 14. The left end of the guide rod 19 is provided with a left end bracket 120, and the right side of the guide rod 19 is provided with a right end bracket 13. The left end bracket 120 and the right end bracket 13 are arranged parallel to each other.

[0038] The left end bracket 120 is provided with a pair of left end bracket connection holes 1201 and a connecting bracket 1202. The connecting bracket 1202 is provided with a pair of connecting holes 1203. The right end bracket 13 is provided with a pair of right end bracket connection holes 131. The guide rod 19 is connected to the left end bracket connection holes 1201 and the right end bracket connection holes 131.

[0039] A movable iron core 12 is located between the left end bracket 120 and the right end bracket 13, and the movable iron core 12 is located at the center of the fixed iron core 11. The movable iron core 12 and the fixed iron core 11 cooperate to form a linear motor assembly.

[0040] The left end of the moving iron core 12 is engaged with the left end bracket 120, and the right end of the moving iron core 12 is engaged with the right end bracket 13.

[0041] It should be noted that the moving core 12 is provided with several annular permanent magnets 18 and several stainless steel magnetic isolation washers 17.

[0042] A spring 121 is provided on the periphery of the iron core support 15. A left spring support 122 is provided on the left side of the spring 121, and a right spring support 123 is provided on the right side of the spring 121. The left spring support 122 cooperates with the left end support 120, and the right spring support 123 cooperates with the limiting stop plate 154.

[0043] The following describes the installation method of this horizontal electromagnetic actuator assembly.

[0044] like Figure 3 As shown, the transverse electromagnetic actuator assembly S is mounted on a suspension mechanism M, which is a double wishbone independent suspension system. The suspension mechanism M includes an upper wishbone 22, a lower wishbone 24, a steering knuckle 25, an axle 26, a braking system 27, a wheel 28, and a tire 29.

[0045] The transverse electromagnetic actuator assembly S, via the triangular bracket 21 and the support force push rod 23, forms a transverse electromagnetic suspension system with the vehicle's suspension mechanism M. The suspension mechanism here is not limited to a double wishbone independent suspension; it can also be other suspension structures.

[0046] like Figure 5 As shown, the support force push rod 23 includes a push rod body 2300. A lower push rod connector 2303 is provided at the bottom of the push rod body 2300, and a lower push rod connecting hole 2301 is provided on the lower push rod connector 2303. An upper push rod connector 2304 is provided at the top of the push rod body 2300, and an upper push rod connecting hole 2302 is provided on the upper push rod connector 2304.

[0047] It should be noted that the push rod body 2300, the lower push rod connector 2303, and the upper push rod connector 2304 can be configured as an adjustable threaded connection. In this way, the length of the support force push rod 23 can be adjusted to suit the vehicle height.

[0048] The lower connecting hole 2301 of the support force push rod 23 is connected to the corresponding hole of the lower cross arm 24 via a push rod bolt 231. The triangular bracket 21 is located at the top of the support force push rod 23. The triangular bracket 21 is provided with three bracket threaded holes 210, such as... Figure 6 As shown.

[0049] The connecting hole 2302 on the push rod of the support force push rod 23 is connected to the corresponding support thread hole 210 of the triangular bracket 21 through the triangular bracket connecting bolt 211 and the triangular bracket connecting rubber bushing 212.

[0050] In addition, the connection hole 1203 on the left end bracket 120 is connected to the corresponding bracket thread hole 210 of the triangular bracket 21 by bolts.

[0051] The following describes the operation of this horizontal electromagnetic actuator assembly.

[0052] like Figure 4 As shown, during the up-and-down movement of the wheel 28, the steering knuckle 25 moves up and down, and the steering knuckle 25 simultaneously drives the upper control arm 22 and the lower control arm 24. The upper control arm 22 rotates around the axis c, and the lower control arm 24 rotates around the axis d.

[0053] The lower cross arm 24 drives the movement of the support force push rod 23 via the push rod bolt 231. As a result, the support force push rod 23 drives the triangular bracket 21 to swing around axis b.

[0054] The swinging triangular bracket 21 drives the left end bracket 120 to move via the triangular bracket connecting bolt 211. Subsequently, the left end bracket 120 drives the mover core 12 and a pair of guide rods 19 to reciprocate left and right. To ensure the normal operation of the horizontal electromagnetic actuator assembly, the horizontal electromagnetic actuator assembly swings slightly around axis a while reciprocating.

[0055] The transverse electromagnetic actuator assembly converts the up-and-down movement of the vehicle body into the extension and retraction of the mover core 12.

[0056] Compared with existing technologies, this transverse electromagnetic actuator assembly has the following advantages:

[0057] 4) Compared to the traditional method of directly mounting the actuator to the suspension crossarm, it can effectively reduce unsprung mass and improve vehicle comfort and handling.

[0058] 5) The transverse electromagnetic actuator assembly is installed on the vehicle body, which makes the size of the linear motor no longer limited, making it possible to install high-power and large-size linear motors, leaving more space inside the wheel, facilitating the design and installation of high-power and large-size hub motors, and reserving sufficient space for designing independent suspensions for hub motors.

[0059] 6) This transverse electromagnetic actuator assembly provides the linear motor with a guide mechanism capable of withstanding lateral shear force and bending moment, such as a double wishbone independent suspension mechanism, which greatly ensures the stability of the linear motor operation and significantly increases its service life.

[0060] Not limited to this, any variations or substitutions conceived without inventive effort should be included within the scope of protection of this invention. Therefore, the scope of protection of this invention should be determined by the scope defined in the claims.

Claims

1. A transverse electromagnetic actuator assembly (S), characterized in that, The horizontal electromagnetic actuator assembly includes a core support (15), which includes a core support body (151). A fixed core (11) is provided inside the core support body (151). Four through-hole core support side sleeves (152) are provided at the bottom of the core support body (151). A mounting protrusion (153) and a limiting baffle (154) are provided on both sides of the core support body (151). A rotatable core support saddle (16) is provided on the mounting protrusion (153). The bottom of the iron core support (15) is provided with a pair of guide rods (19), the guide rods (19) pass through the corresponding iron core support side sleeves (152), the left end of the guide rod (19) is provided with a left end bracket (120), and the right end of the guide rod (19) is provided with a right end bracket (13). The left end bracket (120) is provided with a pair of left end bracket connection holes (1201) and a connecting bracket (1202). The connecting bracket (1202) is provided with a pair of connecting holes (1203). The right end bracket (13) is provided with a pair of right end bracket connection holes (131). The guide rod (19) is connected to the left end bracket connection holes (1201) and the right end bracket connection holes (131). A movable iron core (12) is located between the left end bracket (120) and the right end bracket (13). The movable iron core (12) is located at the center of the fixed iron core (11). The movable iron core (12) and the fixed iron core (11) cooperate to form a linear motor assembly. The left end of the movable iron core (12) cooperates with the left end bracket (120), and the right end of the movable iron core (12) cooperates with the right end bracket (13). A spring (121) is provided on the periphery of the iron core support (15). A left spring support (122) is provided on the left side of the spring (121), and a right spring support (123) is provided on the right side of the spring (121). The left spring support (122) cooperates with the left end support (120), and the right spring support (123) cooperates with the limiting stop plate (154).

2. The transverse electromagnetic actuator assembly according to claim 1, characterized in that, The main body (151) of the iron core support is cylindrical, and the fixed iron core (11) is cylindrical.

3. The transverse electromagnetic actuator assembly according to claim 1, characterized in that, Each of the iron core support side sleeves (152) is provided with an annular sliding bearing (14), and the guide rod (19) passes through the corresponding annular sliding bearing (14).

4. The transverse electromagnetic actuator assembly according to claim 1, characterized in that, The left end bracket (120) and the right end bracket (13) are arranged in parallel.

5. The transverse electromagnetic actuator assembly according to claim 1, characterized in that, The moving core (12) and the fixed core (11) are coaxially arranged.

6. The transverse electromagnetic actuator assembly according to claim 5, characterized in that, The air gap between the moving core (12) and the fixed core (11) is 1 mm.

7. The transverse electromagnetic actuator assembly according to claim 1, characterized in that, The fixed iron core (11) is equipped with a coil.

8. The transverse electromagnetic actuator assembly according to claim 1, characterized in that, The moving core (12) is provided with several annular permanent magnets (18) and several stainless steel magnetic isolation washers (17).

9. A transverse electromagnetic suspension system, comprising a transverse electromagnetic actuator assembly (S) as described in any one of claims 1 to 8, wherein the transverse electromagnetic actuator assembly (S) is connected to the vehicle's suspension mechanism via a triangular bracket (21) and a support force push rod (23), wherein, The horizontal electromagnetic actuator assembly (S) is rotatably connected to the triangular bracket (21), and the triangular bracket (21) is rotatably connected to the support force push rod (23).

10. The transverse electromagnetic actuator assembly according to claim 9, characterized in that, The supporting force push rod (23) includes a push rod body (2300). The bottom of the push rod body (2300) is provided with a push rod lower connector (2303). The push rod lower connector (2303) is provided with a push rod lower connecting hole (2301). The top of the push rod body (2300) is provided with a push rod upper connector (2304). The push rod upper connector (2304) is provided with a push rod upper connecting hole (2302). The push rod body (2300), the push rod lower connector (2303), and the push rod upper connector (2304) are all threaded connections.

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