Breakable stabilizer bar actuator and its breakable stabilizer bar arrangement

Abstract

An actuator with a detachable stabilizer bar and a detachable stabilizer bar device are disclosed. The actuator includes an outer cylinder, first and second rod sleeves, an electromagnetic drive assembly, a movable magnetic shaft, and a locking assembly. The first and second rod sleeves, the electromagnetic drive assembly, the movable magnetic shaft, and the locking assembly are respectively disposed within the outer cylinder. The first rod sleeve is rotatably disposed at a first end of the outer cylinder, and the second rod sleeve is fixedly disposed at a second end of the outer cylinder. The electromagnetic drive assembly, the movable magnetic shaft, and the locking assembly are located between the first and second rod sleeves. The electromagnetic drive assembly includes an electromagnetic bushing; the electromagnetic bushing is fixedly connected to the outer cylinder and sleeved over the movable magnetic shaft, and is keyed to the movable magnetic shaft. The electromagnetic drive assembly drives the movable magnetic shaft to move axially to selectively connect or disconnect from the first rod sleeve. The locking assembly locks the movable magnetic shaft in a position disconnected from the first rod sleeve. This invention has a simple structure, rapid response, and high reliability.

Description

Technical Field

[0001] This utility model relates to vehicle stabilizer bar technology, and more particularly to a detachable stabilizer bar. Background Technology

[0002] Stabilizer bars play a crucial role in a car's operation. Traditional stabilizer bars are typically rigidly connected, meaning that when the vehicle corners, the movement of one wheel is transmitted to the other through the stabilizer bar, reducing body roll. However, in certain situations, such as driving on uneven surfaces or off-roading, a rigidly connected stabilizer bar can restrict the independent movement of the wheels, reducing the vehicle's traction and ride comfort. To address these issues, some manufacturers have introduced disconnectable stabilizer bar devices.

[0003] Existing disconnectable stabilizer bar devices still have some shortcomings. Some disconnectable stabilizer bar devices have complex structures and high manufacturing costs; others have slow response speeds during disconnection and connection, failing to meet the needs of vehicles to quickly switch between different driving conditions; furthermore, the reliability and durability of existing disconnectable stabilizer bar devices need to be improved. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an actuator with a disconnectable stabilizer bar, which has a simple structure, rapid response, and high reliability.

[0005] Another technical problem to be solved by this utility model is to provide a disconnectable stabilizer bar device.

[0006] An actuator for a detachable stabilizer bar according to an embodiment of the present invention includes a first rod body and a second rod body. The actuator includes an outer cylinder, a first rod body sleeve, a second rod body sleeve, an electromagnetic drive assembly, a movable magnetic shaft, and a locking assembly. The first rod body sleeve, the second rod body sleeve, the electromagnetic drive assembly, the movable magnetic shaft, and the locking assembly are respectively disposed in the outer cylinder. The first rod body sleeve is rotatably disposed at the first end of the outer cylinder, and the second rod body sleeve is fixedly disposed at the second end of the outer cylinder. The first rod body sleeve and the second rod body sleeve are used to connect the first rod body and the second rod body, respectively. The electromagnetic drive assembly, the movable magnetic shaft, and the locking assembly are located between the first rod body sleeve and the second rod body sleeve. The electromagnetic drive assembly includes an electromagnetic shaft sleeve. The electromagnetic shaft sleeve is fixedly connected to the outer cylinder and sleeved on the movable magnetic shaft. The electromagnetic shaft sleeve is keyed to the movable magnetic shaft. The electromagnetic drive assembly is used to drive the movable magnetic shaft to move axially so that the movable magnetic shaft can selectively connect or separate from the first rod body sleeve. The locking assembly is used to lock the movable magnetic shaft in a position separated from the first rod body sleeve.

[0007] Preferably, one of the opposing surfaces of the movable magnetic shaft and the first rod sleeve is provided with a plurality of protruding teeth spaced apart in the circumferential direction, and the other of the opposing surfaces of the movable magnetic shaft and the first rod sleeve is provided with a plurality of tooth grooves that are respectively engaged with the plurality of protruding teeth.

[0008] A disconnectable stabilizer bar device according to an embodiment of the present invention includes a first bar, a second bar, and the aforementioned actuator, wherein the first bar sleeve and the second bar sleeve of the actuator are respectively connected to the first bar and the second bar.

[0009] Compared with the prior art, this utility model has the following advantages:

[0010] 1. Simple structure. This utility model embodiment achieves the disconnection and connection of the stabilizer bar through the coordinated cooperation of the electromagnetic bushing and the movable magnetic shaft. The overall structure is simple, easy to manufacture and install, and easy to place in the narrow space under the vehicle.

[0011] 2. Rapid response. The electromagnetic bushing of this utility model can quickly generate and lose magnetic force when energized and de-energized, thereby enabling the movable magnetic shaft to quickly move axially and complete the disconnection and connection of the disconnectable stabilizer bar, meeting the needs of vehicles to quickly switch between different driving conditions;

[0012] 3. High reliability. The meshing method between the electromagnetic bushing and the movable magnetic shaft, and between the movable magnetic shaft and the first rod sleeve in this embodiment of the invention, ensures the transmission stability and reliability of the stabilizer rod in the connected state. At the same time, the design of the electromagnetic bushing and the movable magnetic shaft makes the disconnection and connection actions accurate and reliable. The locking component can lock the movable magnetic shaft in the position separated from the first rod sleeve, reducing the probability of failure.

[0013] 4. Improved vehicle performance. This utility model embodiment can automatically adjust the working state of the stabilizer bar according to the vehicle's driving conditions, which not only improves the vehicle's handling performance, but also effectively enhances the vehicle's passability and comfort, and expands the vehicle's usage scenarios. Attached Figure Description

[0014] Figure 1 An exploded view (outer cylinder removed) of the main components of an actuator with a detachable stabilizer bar according to an embodiment of the present invention is shown.

[0015] Figure 2 A cross-sectional schematic diagram of an actuator with a detachable stabilizer bar according to an embodiment of the present invention is shown, wherein the movable magnetic shaft is separated from the first rod sleeve.

[0016] Figure 3 A cross-sectional schematic diagram of an actuator with a detachable stabilizer bar according to an embodiment of the present invention is shown, wherein the movable magnetic shaft is connected to the first rod sleeve. Detailed Implementation

[0017] Please see Figures 1 to 3 An actuator with a detachable stabilizer bar according to an embodiment of the present invention includes an outer cylinder 1, a first rod sleeve 21, a second rod sleeve 22, an electromagnetic drive assembly 3, a movable magnetic shaft 4, and a locking assembly 5.

[0018] The first rod sleeve 21, the second rod sleeve 22, the electromagnetic drive assembly 3, the movable magnetic shaft 4, and the locking assembly 5 are respectively disposed in the outer cylinder 1. The first rod sleeve 21 is rotatably disposed at the first end of the outer cylinder 1, and the second rod sleeve 22 is fixedly disposed at the second end of the outer cylinder 1. The first rod sleeve 21 and the second rod sleeve 22 are used to connect the first rod 91 and the second rod 92 of the disconnectable stabilizing rod, respectively.

[0019] In this embodiment, the actuator for disconnecting the stabilizer bar includes a bearing 6, which is installed in the outer cylinder 1 and sleeved on the outside of the first rod sleeve 21. The connection between the second rod sleeve 22 and the outer cylinder 1 includes, but is not limited to, interference fit, welding connection, etc., so that the second rod sleeve 22 cannot move relative to the outer cylinder 1 (i.e., it is fixed).

[0020] The electromagnetic drive assembly 3, the movable magnetic shaft 4, and the locking assembly 5 are located between the first rod sleeve 21 and the second rod sleeve 22. The electromagnetic drive assembly 3 includes an electromagnetic shaft sleeve 3a and a spring 3b. The electromagnetic shaft sleeve 3a is fixedly connected to the outer cylinder 1 and sleeved on the outside of the movable magnetic shaft 4, and is keyed to the movable magnetic shaft 4. The spring 3b is sleeved on the outside of the movable magnetic shaft 4, with one end abutting against the electromagnetic shaft sleeve 3a and the other end abutting against the movable magnetic shaft 4, to apply an elastic force biased towards the first rod sleeve 21 to the movable magnetic shaft 4. The electromagnetic drive assembly 3 is used to drive the movable magnetic shaft 4 to move axially, so that the movable magnetic shaft 4 can selectively connect or disconnect from the first rod sleeve 21.

[0021] The electromagnetic bushing 3a is fixedly connected to the outer cylinder 1 by methods including, but not limited to, interference fit, etc., and the electromagnetic bushing 3a can move synchronously with the outer cylinder 1. In this embodiment, the electromagnetic bushing 3a includes an electromagnetic coil 31 and a bushing body 32, which are integrated into one unit. The movable magnetic shaft 4 is made of a magnetic metal material. In other embodiments, the electromagnetic coil 31 and the bushing body 32 are two independent parts, with the electromagnetic coil 31 sleeved outside the bushing body 32, forming a whole after assembly. The winding of the electromagnetic coil 31 is wound on an insulating frame by a winding machine and then insulated to ensure reliable electrical performance.

[0022] Preferably, the electromagnetic bushing 3a is connected to the movable magnetic shaft 4 via a spline. The movable magnetic shaft 4 is provided with an external spline, and the inner wall of the bushing body 32 is provided with a spline groove that engages with the aforementioned external spline.

[0023] In this embodiment, when the electromagnetic coil 31 of the electromagnetic bushing 3a is energized, it applies a magnetic attraction force to the movable magnetic shaft 4, causing the movable magnetic shaft 4 to move away from the first rod sleeve 21. When the movable magnetic shaft 4 moves axially away from the first rod sleeve 21, it compresses the spring 3b. When the electromagnetic coil 31 is de-energized, the elastic force of the spring 3b on the movable magnetic shaft 4 causes the movable magnetic shaft 4 to move axially towards the first rod sleeve 21, thus achieving a reset. In other embodiments, when the electromagnetic coil 31 is supplied with current in the first direction, it applies a magnetic attraction force to the movable magnetic shaft 4, causing the movable magnetic shaft 4 to move away from the first rod sleeve 21. When the electromagnetic coil 31 is supplied with current in the second direction, it applies a magnetic attraction force to the movable magnetic shaft 4, causing the movable magnetic shaft 4 to move towards the first rod sleeve 21. In this case, the electromagnetic drive assembly 3 does not need to be equipped with the spring 3b, and only the electromagnetic bushing 3a is provided.

[0024] In this embodiment, one of the opposing surfaces of the movable magnetic shaft 4 and the first rod sleeve 21 is provided with a plurality of protruding teeth spaced apart circumferentially, and the remaining opposing surface of the movable magnetic shaft 4 and the first rod sleeve 21 is provided with a plurality of tooth grooves that respectively engage with the plurality of protruding teeth. This tooth-clamping connection method can reduce noise during operation. In the example shown in the figure, the end face of the movable magnetic shaft 4 opposite to the first rod sleeve 21 is provided with a plurality of protruding teeth 41 evenly distributed circumferentially, and the end face of the first rod sleeve 21 opposite to the movable magnetic shaft 4 is provided with a plurality of tooth grooves 211 that respectively engage with the plurality of protruding teeth 41.

[0025] The locking assembly 5 is used to lock the movable magnetic shaft 4 in a position separated from the first rod sleeve 21. In this embodiment, the movable magnetic shaft 4 has a locking hole 42 on its side; the locking assembly 5 includes an electromagnet 51, which includes a coil 511 and an iron core 512. When the coil 511 is energized, the iron core 512 extends out and inserts into the locking hole 42 to lock the position of the movable magnetic shaft 4.

[0026] According to another embodiment of the present invention, a disconnectable stabilizer bar device includes a first rod body 91, a second rod body 92, and the aforementioned actuator. The first rod body sleeve 21 and the second rod body sleeve 22 of the actuator are respectively connected to one end of the first rod body 91 and one end of the second rod body 92. The connection method includes, but is not limited to, connecting them together by a pin. The other end of the first rod body 91 and the other end of the second rod body 92 are respectively connected to the left and right suspended lower swing arms.

[0027] When the vehicle is driving on uneven roads or in off-road conditions requiring increased independent wheel movement, the electromagnetic coil 31 of the electromagnetic bushing 3a is energized. The electromagnetic coil 31 generates a magnetic force that attracts the movable magnetic shaft 4, causing the movable magnetic shaft 4 to move axially away from the first rod sleeve 21. Multiple protrusions 41 of the movable magnetic shaft 4 disengage from multiple tooth grooves 211 of the first rod sleeve 21, and the movable magnetic shaft 4 moves from its connected position to its separated position. Subsequently, the coil 511 of the magnet 51 is energized, and the iron core 512 extends and inserts into the locking hole 42 of the movable magnetic shaft 4 to lock its position. Then, the electromagnetic coil 31 is de-energized. At this time, the movable magnetic shaft 4 is disconnected from the first rod sleeve 21. Figure 2 As shown, the wheels on both sides move, and the first rod 91 and the second rod 92 work normally, improving the vehicle's passability on uneven roads.

[0028] When the vehicle is driving on a smooth road or making high-speed turns, conditions requiring the stabilizer bar to function, such as when the vehicle is driving on a smooth road or making high-speed turns, the coil 511 of the electromagnet 51 is de-energized, the iron core 512 retracts, exits the locking hole 42, and the lock is released. Since the magnetic force disappears after the electromagnet coil 31 is de-energized, the movable magnetic shaft 4, under the elastic restoring force of the spring 3b, moves axially along the direction closer to the first rod sleeve 21, causing the multiple protrusions 41 of the movable magnetic shaft 4 to mesh with the multiple grooves 211 of the first rod sleeve 21. Figure 3 As shown, at this time, the first rod 91 and the second rod 92 are reconnected into a whole, the stabilizer bar works normally, effectively suppresses the body roll, and improves the comfort of the vehicle.

[0029] In some specific implementations, the energization and de-energization of electromagnetic coil 31 and coil 511 are controlled by a controller, but this is not limited to this. The energization and de-energization of electromagnetic coil 31 and coil 511 can also be controlled by a control circuit.

[0030] The disconnectable stabilizer bar device of this utility model solves the problems of complex structure, slow response and poor reliability of existing disconnectable stabilizer bar devices, and realizes the quick and reliable disconnection and connection of the disconnectable stabilizer bar under different driving conditions, thereby improving the vehicle's handling performance, passability and comfort.

Claims

1. An actuator for a breakable stabilizer bar, the breakable stabilizer bar comprising a first bar body and a second bar body, characterized in that, The actuator includes an outer cylinder, a first rod sleeve, a second rod sleeve, an electromagnetic drive assembly, a movable magnetic shaft, and a locking assembly; The first rod sleeve, the second rod sleeve, the electromagnetic drive assembly, the movable magnetic shaft, and the locking assembly are respectively disposed in the outer cylinder; the first rod sleeve is rotatably disposed at the first end of the outer cylinder, and the second rod sleeve is fixedly disposed at the second end of the outer cylinder, and the first rod sleeve and the second rod sleeve are used to connect the first rod and the second rod respectively; An electromagnetic drive assembly, a movable magnetic shaft, and a locking assembly are located between the first rod sleeve and the second rod sleeve. The electromagnetic drive assembly includes an electromagnetic shaft sleeve. The electromagnetic shaft sleeve is fixedly connected to the outer cylinder and sleeved on the movable magnetic shaft. The electromagnetic shaft sleeve is keyed to the movable magnetic shaft. The electromagnetic drive assembly is used to drive the movable magnetic shaft to move axially, so that the movable magnetic shaft can selectively connect to or separate from the first rod sleeve. The locking assembly is used to lock the movable magnetic shaft in a position separated from the first rod sleeve.

2. The disconnectable stabilizer bar actuator of claim 1, wherein, The movable magnetic shaft has a locking hole on its side; The locking assembly includes an electromagnet, which includes a coil and an iron core, the iron core extending out and inserting into the lock hole when the coil is energized.

3. The disconnectable stabilizer bar actuator of claim 1, wherein, The electromagnetic drive assembly includes a spring sleeved outside the movable magnetic shaft. One end of the spring abuts against the electromagnetic shaft sleeve, and the other end of the spring abuts against the movable magnetic shaft to apply an elastic force biased towards the first rod sleeve to the movable magnetic shaft.

4. The actuator with a detachable stabilizer bar according to claim 1, characterized in that, One of the opposing surfaces of the movable magnetic shaft and the first rod sleeve is provided with a plurality of protruding teeth spaced apart in the circumferential direction, and the other of the opposing surfaces of the movable magnetic shaft and the first rod sleeve is provided with a plurality of tooth grooves that are respectively engaged with the plurality of protruding teeth.

5. The actuator with a detachable stabilizer bar according to claim 1, characterized in that, The electromagnetic bushing is connected to the movable magnetic shaft via a spline.

6. The actuator with a detachable stabilizer bar according to claim 1, characterized in that, The actuator includes a bearing, which is installed in the outer cylinder and sleeved on the outside of the first rod body.

7. The actuator with a detachable stabilizer bar according to claim 1, characterized in that, The electromagnetic bushing includes an electromagnetic coil and a bushing body, with the electromagnetic coil and the bushing body integrated into one unit.

8. A disconnectable stabilizer bar device, comprising a first bar and a second bar, characterized in that, The detachable stabilizer bar device further includes an actuator as described in any one of claims 1 to 7, wherein a first rod sleeve and a second rod sleeve of the actuator are respectively connected to the first rod and the second rod.

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