Actuator of disconnectable stabilizer bar and disconnectable stabilizer bar device thereof

Abstract

The invention discloses an actuator capable of disconnecting a stabilizer bar and a stabilizer bar device capable of disconnecting the stabilizer bar. The actuator comprises an outer cylinder body, a first bar body sleeve, a second bar body sleeve, an electromagnetic driving assembly, a movable magnetic shaft and a locking assembly. The first rod body sleeve, the second rod body sleeve, the electromagnetic driving assembly, the movable magnetic shaft and the locking assembly are respectively arranged in the outer cylinder body; the first rod body sleeve is rotatably arranged at the first end of the outer cylinder body, and the second rod body sleeve is fixedly arranged at the second end of the outer cylinder body. The electromagnetic driving assembly, the movable magnetic shaft and the locking assembly are located between the first rod body sleeve and the second rod body sleeve, and the electromagnetic driving assembly comprises an electromagnetic shaft sleeve; the electromagnetic shaft sleeve is fixedly connected with the outer cylinder body and arranged outside the movable magnetic shaft in a sleeving mode, the electromagnetic shaft sleeve is in key connection with the movable magnetic shaft, and the electromagnetic driving assembly is used for driving the movable magnetic shaft to move in the axial direction so as to be selectively connected with or separated from the first rod body sleeve; the locking assembly is used for locking the movable magnetic shaft at the position separated from the first rod body sleeve. The device is simple in structure, quick in response and high in reliability.

Description

Technical Field

[0001] The present invention relates to a vehicle stabilizer bar technology, and in particular to a disconnectable stabilizer bar. Background Art

[0002] Stabilizer bars play a vital role in a car's driving. Traditional stabilizer bars are typically rigidly connected, meaning that when the vehicle turns, wheel motion on one side is transmitted to the other wheel through the stabilizer bar, reducing body roll. However, in certain situations, such as when driving on uneven surfaces or off-road, a rigidly connected stabilizer bar can restrict independent wheel motion, reducing the vehicle's maneuverability and comfort. To address this issue, some manufacturers have introduced detachable stabilizer bar systems.

[0003] Existing disconnectable stabilizer bar systems still have some shortcomings. Some are complex in structure and expensive to manufacture. Others are slow to respond during disconnection and connection, failing to meet the requirements for rapid switching between different driving conditions. Furthermore, the reliability and durability of existing disconnectable stabilizer bar systems need to be improved. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an actuator capable of disconnecting a stabilizer bar, which has a simple structure, rapid response and high reliability.

[0005] Another technical problem to be solved by the present invention is to provide a disconnectable stabilizer bar device.

[0006] According to an embodiment of the present invention, an actuator for a detachable stabilizing rod comprises a first rod body and a second rod body, and the actuator comprises 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 arranged in the outer cylinder body; the first rod body sleeve is rotatably arranged at the first end of the outer cylinder body, the second rod body sleeve is fixedly arranged at the second end of the outer cylinder body, and 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 comprises an electromagnetic shaft sleeve; the electromagnetic shaft sleeve is fixedly connected to the outer cylinder body and sleeved outside 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 is selectively connected to or separated 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 body sleeve is provided with a plurality of convex teeth distributed at intervals along the circumferential direction, and the remaining one of the opposing surfaces of the movable magnetic shaft and the first rod body sleeve is provided with a plurality of tooth grooves respectively embedded in and matched with the plurality of convex teeth.

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

[0009] Compared with the prior art, the present invention has the following advantages:

[0010] 1. Simple structure. The embodiment of the present invention realizes the disconnection and connection of the stabilizer bar through the coordinated cooperation of the electromagnetic shaft sleeve and the movable magnetic shaft. The overall structure is simple, easy to manufacture and install, and easy to arrange in the narrow space under the vehicle;

[0011] 2. Rapid response. The electromagnetic sleeve of the embodiment of the present invention can quickly generate and eliminate magnetic force when it is powered on and off, so that the movable magnetic shaft can quickly achieve axial movement, completing the disconnection and connection of the disconnectable stabilizer bar, meeting the vehicle's demand for rapid switching under different driving conditions;

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

[0013] 4. Improve vehicle performance. The embodiments of the present invention can automatically adjust the working state of the stabilizer bar according to the vehicle's driving conditions, thereby improving the vehicle's handling performance while effectively enhancing the vehicle's passability and comfort, and expanding the vehicle's usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG2 is an exploded schematic diagram showing the main components of an actuator capable of disconnecting a stabilizer bar according to an embodiment of the present invention (with the outer cylinder removed).

[0015] Figure 2 A cross-sectional schematic diagram of an actuator with a disconnectable stabilizing rod according to an embodiment of the present invention is shown, wherein the movable magnetic shaft and the first rod body sleeve are in a separated state.

[0016] Figure 3 A cross-sectional schematic diagram of an actuator with a disconnectable stabilizing rod according to an embodiment of the present invention is shown, wherein the movable magnetic shaft and the first rod body sleeve are in a connected state. DETAILED DESCRIPTION

[0017] See also Figures 1 to 3 An actuator for a disconnectable stabilizing rod 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 respectively connect the first rod 91 and the second rod 92 of the disconnectable stabilizing bar.

[0019] In this embodiment, the actuator for the disconnectable stabilizer bar includes a bearing 6, which is mounted within the outer cylinder 1 and sleeved around the first rod sleeve 21. The second rod sleeve 22 is connected to the outer cylinder 1 by methods including, but not limited to, interference fit and welding, such that the second rod sleeve 22 cannot move relative to the outer cylinder 1 (i.e., is fixed).

[0020] The electromagnetic drive assembly 3, movable magnetic shaft 4, and 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 sleeve 3a and a spring 3b. The electromagnetic sleeve 3a is fixedly connected to the outer cylinder 1 and is mounted on the outside of the movable magnetic shaft 4. The electromagnetic sleeve 3a is keyed to the movable magnetic shaft 4. The spring 3b is mounted on the outside of the movable magnetic shaft 4. One end of the spring 3b abuts the electromagnetic sleeve 3a, and the other end of the spring 3b abuts the movable magnetic shaft 4, exerting an elastic force on the movable magnetic shaft 4 toward the first rod sleeve 21. The electromagnetic drive assembly 3 is used to drive the movable magnetic shaft 4 to move axially, thereby selectively connecting or disconnecting the movable magnetic shaft 4 from the first rod sleeve 21.

[0021] The manner in which the electromagnetic sleeve 3a is fixedly connected to the outer cylinder 1 includes, but is not limited to, interference fit and the like, and the electromagnetic sleeve 3a can move synchronously with the outer cylinder 1. In this embodiment, the electromagnetic sleeve 3a includes an electromagnetic coil 31 and a sleeve body 32, and the electromagnetic coil 31 and the sleeve body 32 are integrated into one body. The material of the movable magnetic shaft 4 is a magnetic metal material. In other embodiments, the electromagnetic coil 31 and the sleeve body 32 are two independent parts, and the electromagnetic coil 31 is sleeved outside the sleeve body 32 to form 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 its reliable electrical performance.

[0022] Preferably, the electromagnetic sleeve 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 sleeve body 32 is provided with a spline groove that meshes with the external spline.

[0023] In this embodiment, when the electromagnetic coil 31 of the electromagnetic sleeve 3a is energized, it applies a magnetic attraction force to the movable magnetic shaft 4 that forces the movable magnetic shaft 4 away from the first rod sleeve 21. When the movable magnetic shaft 4 moves axially in a direction away from the first rod sleeve 21, the spring 3b is compressed. 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 in a direction toward the first rod sleeve 21, thereby achieving reset. In other embodiments, when a current in a first direction is passed through the electromagnetic coil 31, it applies a magnetic attraction force to the movable magnetic shaft 4 that forces the movable magnetic shaft 4 away from the first rod sleeve 21, and when a current in a second direction is passed through the electromagnetic coil 31, it applies a magnetic attraction force to the movable magnetic shaft 4 that forces the movable magnetic shaft 4 toward the first rod sleeve 21. In this case, the electromagnetic drive assembly 3 does not need to be provided with the spring 3b, and only the electromagnetic sleeve 3a is provided.

[0024] In this embodiment, one of the facing surfaces of the movable magnetic shaft 4 and the first rod sleeve 21 is provided with a plurality of circumferentially spaced protruding teeth, while the remaining facing surface of the movable magnetic shaft 4 and the first rod sleeve 21 is provided with a plurality of tooth grooves that engage with the plurality of protruding teeth. This toothed connection reduces noise during operation. In the example shown in the figure, the end surface of the movable magnetic shaft 4 facing the first rod sleeve 21 is provided with a plurality of circumferentially spaced protruding teeth 41, while the end surface of the first rod sleeve 21 facing the movable magnetic shaft 4 is provided with a plurality of tooth grooves 211 that 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, a locking hole 42 is provided on the side of the movable magnetic shaft 4. 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 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, wherein 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, and the connection method includes but is not limited to connecting together through a pin shaft, etc. 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 suspension lower arms.

[0027] When the vehicle is traveling on uneven roads or performing off-road driving, which requires improving the independent movement ability of the wheels, the electromagnetic coil 31 of the electromagnetic sleeve 3a is energized, and the electromagnetic coil 31 generates a magnetic force to attract the movable magnetic shaft 4, causing the movable magnetic shaft 4 to move axially in a direction away from the first rod body sleeve 21. The multiple protruding teeth 41 of the movable magnetic shaft 4 are disengaged from the multiple tooth grooves 211 of the first rod body sleeve 21, and the movable magnetic shaft 4 moves from the connection position with the first rod body sleeve 21 to the separation position. Subsequently, the coil 511 of the magnet 51 is energized, and the iron core 512 extends out and is inserted into the lock hole 42 of the movable magnetic shaft 4 to lock the position of the movable magnetic shaft 4, and then the electromagnetic coil 31 is de-energized. At this time, the movable magnetic shaft 4 is disconnected from the first rod body sleeve 21, as shown in FIG. Figure 2 As shown, the wheels on both sides move, and the first rod 91 and the second rod 92 work normally respectively, thereby improving the vehicle's passability on uneven roads.

[0028] When the vehicle is traveling on a flat road or making a high-speed turn, which requires the stabilizer bar to function, the coil 511 of the electromagnet 51 is de-energized, the iron core 512 retracts, exits the lock hole 42, and the lock is released. Since the magnetic force of the electromagnetic coil 31 disappears after the power is turned off, the movable magnetic shaft 4 moves axially in the direction close to the first rod body sleeve 21 under the elastic restoring force of the spring 3b, so that the multiple protruding teeth 41 of the movable magnetic shaft 4 engage with the multiple tooth grooves 211 of the first rod body sleeve 21, as shown in FIG. Figure 3 As shown, at this time, the first rod body 91 and the second rod body 92 are reconnected into a whole, and the stabilizer bar works normally, effectively suppressing the body roll and improving the comfort of the vehicle.

[0029] In some specific embodiments, the electromagnetic coil 31 and the coil 511 are energized and deenergized by a controller, but the invention is not limited thereto. The electromagnetic coil 31 and the coil 511 may also be energized and deenergized by a control circuit.

[0030] The detachable stabilizer bar device of the embodiment of the present invention solves the problems of complex structure, slow response, poor reliability, etc. of the existing detachable stabilizer bar device, and realizes the detachable stabilizer bar to be quickly and reliably disconnected and connected under different driving conditions, thereby improving the vehicle's handling performance, passability and comfort.

Claims

1. An actuator for a disconnectable stabilizer bar, the disconnectable stabilizer bar comprising a first rod body and a second rod 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, 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; 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 is sleeved outside the movable magnetic shaft, and the electromagnetic shaft sleeve is key-connected 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 be selectively connected to or separated 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.

2. The actuator for disconnecting the stabilizer bar according to claim 1, characterized in that: A lock hole is provided on the side of the movable magnetic shaft; The locking assembly includes an electromagnet, which includes a coil and an iron core. The iron core extends and inserts into the lock hole when the coil is energized.

3. The actuator capable of disconnecting the stabilizer bar according to claim 1, characterized in that: The electromagnetic drive assembly includes a spring, which is 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 to the movable magnetic shaft biased toward the first rod sleeve.

4. The actuator capable of disconnecting a stabilizer bar according to claim 1, characterized in that: One of the opposing surfaces of the movable magnetic shaft and the first rod body sleeve is provided with a plurality of convex teeth distributed at intervals along the circumferential direction, and the remaining one of the opposing surfaces of the movable magnetic shaft and the first rod body sleeve is provided with a plurality of tooth grooves respectively embedded in and matched with the plurality of convex teeth.

5. The actuator for a disconnectable stabilizer bar according to claim 1, characterized in that: The electromagnetic shaft sleeve is connected to the movable magnetic shaft through a spline.

6. The actuator capable of disconnecting a stabilizer bar according to claim 1, characterized in that: The actuator includes a bearing, which is installed in the outer cylinder and sleeved outside the first rod sleeve.

7. The actuator capable of disconnecting a stabilizer bar according to claim 1, characterized in that: The electromagnetic sleeve comprises an electromagnetic coil and a sleeve body, and the electromagnetic coil and the sleeve body are integrated into one body.

8. A detachable stabilizer bar device, comprising a first bar body and a second bar body, characterized in that: The detachable stabilizer rod device further comprises the actuator according to any one of claims 1 to 7, wherein the first rod sleeve and the second rod sleeve of the actuator are connected to the first rod and the second rod respectively.

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