CN114212142B - Car steering wheel vibration generating device and steering wheel - Google Patents

Abstract

The invention relates to the field of automobile part production and processing, and discloses an automobile steering wheel vibration generating device and a steering wheel, which comprise: the coil comprises a shell, a coil body and a coil core, wherein the shell is cylindrical, a sliding cavity and a coil cavity are arranged in the shell, and a static contact is arranged at one end of the shell; the armature iron made of soft magnetic materials is arranged in the sliding cavity in a sliding mode; the trigger mechanism comprises a magnetic coil wound in the coil cavity, a first trigger position arranged on the inner wall of the sliding cavity and a second trigger position arranged on the inner wall of the sliding cavity or the static contact piece. The invention has the following advantages and effects: this application is behind automobile staring magnetic coil, and armature can make a round trip to slide in the slip intracavity, and striking static contact produces the vibration. The vibration mode has a simple structure, the stroke of the reciprocating mechanism is linear, and circumferential motion is not generated, so that the reciprocating mechanism can be arranged in a spoke with a small section size and is closer to the hand of a driver, and the vibration sense of the driver is improved when vibration is generated. Avoiding excessive effects on other components connected to the steering wheel.

Description

Automobile steering wheel vibration generating device and steering wheel

Technical Field

The application relates to the technical field of automobile part production and processing, in particular to an automobile steering wheel vibration generating device and a steering wheel.

Background

The vibration of the steering wheel is used as a tactile signal and is mainly used for reminding a driver under working conditions of fatigue driving, lane departure and the like. A conventional steering wheel vibration device employs a rotary motor equipped with an eccentric wheel as a vibration source, and generates vibration by centrifugal force when the motor rotates. Typically, the vibration motor is mounted on the lower right spoke of the steering wheel near the center of the steering wheel. The vibration of the steering wheel is caused by the rotation of the unbalanced weight on the motor.

The cost of the vibration motor is high, and the motor cannot be replaced independently, so if the vibration motor is damaged, the whole steering wheel must be replaced, the maintenance cost is high, in addition, the size of the equipment is large, the equipment needs to be installed in the middle of the steering wheel with a large space and is far away from the hands of a driver directly sensing vibration, in order to generate enough vibration, the size and the weight of the eccentric wheel part are often high, and the cost is further increased. Meanwhile, the whole vibration of the steering wheel also has influence on other parts installed on the steering wheel, such as an electrical switch, an air bag and the like, and potential fault hazards exist. In some prior arts, a technical scheme of using a linear vibration motor is provided, which is small in size, can be installed in an outer ring of a steering wheel, but cannot directly use a vehicle-mounted direct current power supply, and needs an additional waveform controller to work, so that the cost is higher.

Disclosure of Invention

To the defect that exists among the prior art, the utility model aims to provide a car steering wheel vibration generating device and steering wheel owing to adopt the vibrating structure of armature striking, can do equipment volume for a short time to reach the effect that can install in the steering wheel spoke, install simultaneously and can provide great vibration with less actual amplitude in the steering wheel spoke, and the vibrations that produce do not influence and have other functional mechanism of being connected with the steering wheel.

In order to achieve the above purposes, on one hand, the technical scheme is as follows:

the application provides a car steering wheel vibration generating device includes:

the coil is arranged outside the sliding cavity, and one end of the shell is provided with a static contact piece;

the armature iron is made of soft magnetic materials and is arranged in the sliding cavity in a sliding mode, and one end of the armature iron is connected with one end, far away from the static contact piece, of the shell through a resetting device;

the triggering mechanism comprises a magnetic coil wound in a coil cavity, a first triggering position arranged on the inner wall of the sliding cavity and a second triggering position arranged on the inner wall of the sliding cavity or a static contact piece, and the magnetic coil is powered by an automobile;

when the armature is in the original position, the armature is in contact with the first trigger position and the second trigger position at the same time, the magnetic coil is electrified, and the armature is pulled away from the static contact piece by the magnetic coil;

when the armature is disconnected from the second trigger position, the magnetic coil is powered off, and the armature is reset by the reset device and impacts the static contact to generate vibration.

In some further refinements, the second trigger position is arranged on the inner wall of the sliding cavity;

and an annular groove is formed in one end, close to the static contact, of the armature, and is positioned between the second trigger position and the static contact when the armature is in the original position.

In some further improvements, a metal ring is disposed on each of the first and second trigger positions.

In some further refinements, the static contact is made of rubber.

In some further improvements, the second trigger position is arranged on a static contact piece, the static contact piece is made of conductive materials, and the static contact piece and the magnetic coil are insulated from each other.

In some further improvements, the sliding cavity is a thick section and a thin section with a diameter smaller than that of the thick section, and the thin section is arranged on one side close to the static contact piece;

the armature is of a stepped shaft structure and is divided into a hammer body arranged in the thick section in a sliding mode and a striker arranged in the thin section in a sliding mode.

In some further improvements, a detachable rear cover is arranged at one end, close to the buffer device, of the shell, and the buffer device abuts against the rear cover;

the rear cover is provided with an exhaust hole, and the armature is provided with an exhaust channel along the axis direction.

The present application further provides a steering wheel, comprising:

one or more spokes of the steering wheel are internally provided with the automobile steering wheel vibration generating device.

In some further improvements, one end of the vibration generating device for the steering wheel of the automobile, which is provided with the static contact piece, is close to the spoke ring of the steering wheel.

In some further improvements, the automobile steering wheel vibration generating device is connected with the spoke ring through a vibration amplifying plate;

the vibration amplification plate is U-shaped, one arm is attached to the spoke ring steel pipe, the U-shaped bottom end of the vibration amplification plate is abutted to the spoke steel plate of the steering wheel, and the other arm is perpendicular to the plane of the spoke steel plate and is connected with the automobile steering wheel vibration generation device through a connecting piece.

The beneficial effect that technical scheme that this application provided brought includes:

the application provides a pair of steering wheel vibration generating device utilizes the interact of magnetic coil and armature for behind the automobile staring magnetic coil, armature can make a round trip to slide in the slip intracavity, and striking static contact produces the vibration. The vibration mode has a simple structure, the stroke of the reciprocating mechanism is linear, and circumferential motion is not generated, so that the reciprocating mechanism can be arranged in spokes with small cross-sectional sizes and is closer to the hands of a driver, and the vibration sense of the driver is improved when vibration is generated. Meanwhile, the fact that smaller vibration can generate larger vibration sense also means that actual vibration generated by the steering wheel is very small, and excessive influence on other parts connected to the steering wheel is avoided.

Meanwhile, the steering wheel of the steering wheel vibration generating device can directly supply power to the steering wheel vibration generating device through the storage battery. Meanwhile, the steering wheel vibration generating device is small in overall size and can be arranged at any position of a spoke, most of structures do not need to be arranged in the central area of the steering wheel like a traditional vibration motor, the adverse effects of vibration on the steering wheel rotating shaft and the structures such as an electric switch, an air bag and the like attached to the steering wheel rotating shaft can be reduced as much as possible, meanwhile, the vibration sense of a driver can be improved, and the prompt effect is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic cross-sectional view of an embodiment of an automotive steering wheel vibration generating device of the present application in a home position.

Fig. 2 is a schematic cross-sectional view of the embodiment of fig. 1 with the armature pulled by the flux ring.

Fig. 3 is a schematic sectional view of an armature pulled by a magnetic flux coil in another embodiment.

Fig. 4 is a schematic structural diagram of an embodiment of a steering wheel in the present application.

Fig. 5 isbase:Sub>A sectional view taken alongbase:Sub>A-base:Sub>A in fig. 4.

Reference numerals:

1. a housing; 11. a sliding cavity; 111. coarse section; 112. a thin section; 12. a coil cavity; 13. a static contact piece; 14. a rear cover; 141. an exhaust hole; 2. an armature; 21. a hammer body; 22. a ram; 23. an annular groove; 24. an exhaust passage; 3. a magnetic coil; 4. a first trigger position; 5. a second trigger position; 6. a resetting device; 7. a steering wheel; 71. a spoke ring steel pipe; 72. spoke steel plates; 8. a vibration amplifying plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further 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. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The present application provides an embodiment of a vibration generating device for a steering wheel of an automobile, as shown in fig. 1 and 3, comprising a housing 1, an armature 2, a magnetic coil 3, a first triggering position 4 and a second triggering position 5.

The shell 1 is cylindrical, a sliding cavity 11 and a coil cavity 12 are arranged in the shell, the sliding cavity 11 is located in the center of the shell 1, the coil cavity 12 is arranged on the outer side of the sliding cavity 11, and a static contact piece 13 is arranged at one end of the shell 1. Specifically, the housing 1 is generally a cylindrical tube and is conveniently installed in spokes of a steering wheel 7 of an automobile, and some spokes of the steering wheel 7 are close to a square shape, so that the housing 1 can also be arranged to be close to a square tube structure. In a typical embodiment, the sliding chamber 11 and the coil chamber 12 are relatively close in shape so that the resulting magnetic field is more uniform across the armature 2, and the sliding chamber 11 and the coil chamber 12 are generally physically separated from each other to avoid electrical leakage. Meanwhile, in some embodiments, the whole housing 1 is divided into an inner liner and a shell by the sliding cavity 11 and the coil cavity 12, the shell is in contact with the outside, an insulating material is generally used to prevent electric leakage and magnetization due to a magnetic field for a long time, and the inner liner is required to accommodate the armature 2 for sliding, so the inner liner is generally made of a non-conductive material with self-lubricating property, such as nylon, polyformaldehyde, and polytetrafluoroethylene.

The soft magnetic armature 2 is arranged in the sliding cavity 11 in a sliding mode, and one end of the armature 2 is connected with one end, far away from the static contact piece 13, of the shell 1 through the reset device 6. Specifically, the armature 2 is generally made of a material that can be magnetized but does not retain a magnetic force for a long time after magnetization, and is generally made of soft iron. The armature 2 needs a certain deformation resistance to avoid deformation after long-term impact, and the sliding cavity 11 is blocked and cannot slide. The return means 6 is typically a non-conductive spring, and in some embodiments may be other resilient structures such as an air spring.

The trigger mechanism comprises a magnetic coil 3 wound in a coil cavity 12, a first trigger position 4 arranged on the inner wall of a sliding cavity 11, and a second trigger position 5 arranged on the inner wall of the sliding cavity 11 or a static contact piece 13, wherein the magnetic coil 3 is powered by a vehicle. Specifically, as shown in fig. 1 and 3, a battery of the vehicle supplies power to the magnetic coil 3, which is represented by a symbol of a dc power supply, and a switch for controlling the entire vehicle steering wheel vibration generating device is further provided, wherein the switch is mainly controlled by a vehicle computer to start the vehicle steering wheel vibration generating device when needed.

In the embodiment, when the power is not supplied, the armature 2 is in the original position, and the magnetic coil 3 is always in the power-off state. When the magnetic coil 3 of the present embodiment is started by a computer of an automobile, the following two states exist according to the position of the armature 2:

when the armature 2 is in the original position, the armature 2 simultaneously contacts the first trigger position 4 and the second trigger position 5, the magnetic coil 3 is electrified, and the armature 2 is pulled away from the static contact piece 13 by the magnetic coil 3;

when the armature 2 is disconnected from the second triggering position 5, the magnetic coil 3 is de-energized, and the armature 2 is reset by the reset device 6 and strikes the static contact 13 to generate vibration.

In one class of embodiments, as shown in fig. 1 and 2, the second triggering position 5 is arranged on the inner wall of the sliding chamber 11;

the armature 2 is provided with an annular groove 23 at an end adjacent to the static contact 13, and when the armature 2 is in the home position, the annular groove 23 is located between the second triggering position 5 and the static contact 13.

Specifically, when the present embodiment is in the power-on state, the circuit is conducted according to the circuit shown in fig. 1, with the circuit of the power supply, the first trigger position 4, the armature 2, the second trigger position 5, the magnetic coil 3 and the power supply being on. The magnetic coil 3 generates an attractive force at this time, pulling the armature 2.

When the armature 2 is pulled until the annular recess 23 matches the second triggering position 5, the connection between the second triggering position 5 and the armature 2 is broken, so that the circuit is broken, the magnetic coil 3 is de-energized, the armature 2 loses its attraction force and is pushed by the resetting device 6 to impact on the stationary contact 13.

The armature 2 is pushed by the reset device 6 to impact on the static contact piece 13, and then the power supply, the first trigger position 4, the armature 2, the second trigger position 5, the magnetic coil 3 and the power supply are conducted, so that the armature 2 is pulled.

The armature 2 can reciprocate in the whole vibration device in the process to continuously generate vibration only by reasonably setting the magnetic force of the magnetic coil 3 and the elastic force of the reset device 6.

In some embodiments, the first trigger position 4 and the second trigger position 5 are contacted by a metal mechanism such as an electrical contact. However, in practice, the metal mechanism with a small contact surface is easy to generate non-conduction due to various factors such as slight rust, and in order to solve the problem, structures for increasing the contact area are generally arranged at the first trigger position 4 and the second trigger position 5.

In some preferred embodiments, therefore, a metal ring is disposed on each of the first and second triggering positions 4 and 5. Specifically, the shape of the metal ring is close to the inner wall of the sliding cavity 11, and the metal ring cannot obstruct the sliding of the armature 2, and cannot be magnetized by the magnetic coil 3 for a long time. In the embodiment shown in fig. 1, a copper ring is used as the metal ring.

In some embodiments, the static contact 13 is made of metal or hard plastic, so as to expect larger and more obvious vibration, but when such material is used, the static contact 13 will generate certain unpleasant noise while vibrating, which affects the driving process of the driver.

Therefore, in some preferred embodiments, the static contact piece 13 is made of rubber, so that only vibration can be transmitted, and the emitted noise is greatly reduced.

In another embodiment, the second triggering position 5 is disposed on a static contact 13, and the static contact 13 is made of a conductive material.

Specifically, in the embodiment shown in fig. 3, the copper sheet is selected as the static contact piece 13, and the second triggering position 5 is arranged on the static contact piece 13, so that the failure of the automobile steering wheel vibration generating device caused by the accidental conditions of corrosion, abrasion and the like of the second triggering position 5 can be effectively avoided, and the service life of the embodiment is correspondingly prolonged.

On the other hand, the static contact 13 is usually made of metal, so that vibration can be more effectively transmitted, and the vibration can be prevented from being dissipated into the air, so that the steering wheel has stronger vibration sense, the required amplitude can be reduced, and the influence of the vibration on the shaft of the steering wheel 7 and other parts attached to the shaft of the steering wheel 7 can be reduced.

In some embodiments, there is an upper limit to adjusting the strength of the magnetic force of the magnetic coil 3 and thus the impact strength, depending on the mass of the armature 2 itself and the elasticity of the reset device 6, so that the mass of the armature 2 needs to be increased in order to effectively improve the impact strength of the armature 2.

The sliding cavity 11 is a thick section 111 and a thin section 112 with a diameter smaller than that of the thick section 111, and the thin section 112 is arranged on one side close to the static contact 13;

the armature 2 has a stepped shaft structure and is divided into a hammer body 21 slidably disposed in the thick section 111 and a striker 22 slidably disposed in the thin section 112.

Specifically, in this application, the quality and the volume of hammer block 21 are far greater than lance 22, set sliding cavity 11 to the notch cuttype simultaneously and also help will assaulting and transmit to the shell 1 inner chamber when resetting means 6 resilience force is too strong, avoid too big impact to puncture or destroy the static contact 13 shape, have improved the life of static contact 13.

In a specific use process, if the whole structure is assembled tightly and has a small volume, the gas inside the structure has a non-negligible influence on the device, for example, taking fig. 1 as an example, if the armature 2 is connected tightly with the sliding cavity 11, when the armature 2 is far away from the static contact piece 13, a vacuum cavity is formed among the armature 2, the sliding cavity 11 and the static contact piece 13 to block the movement of the armature 2.

Therefore, in some embodiments, a detachable rear cover 14 is disposed at one end of the housing 1 close to the buffering device, and the buffering device abuts against the rear cover 14; the rear cover 14 is provided with an exhaust hole 141, and the center of the armature 2 is provided with an exhaust passage 24.

The steering wheel vibration generating apparatus of the present application is explained below with an embodiment represented by fig. 1:

in the present embodiment, it comprises a housing 1, an armature 2 and a trigger mechanism.

Wherein, shell 1 includes the slip chamber 11 that the ladder set up and sets up the coil chamber 12 in the slip chamber 11 outside, and above-mentioned shell 1 is the plastics material, prevents to produce magnetization effect after long-term the use and magnetizes shell 1, influences armature 2's work, is provided with detachable hou gai 14 on the shell 1 simultaneously, convenient equipment and maintenance, and shell 1 is provided with static contact 13 for the one end of hou gai 14 for produce the vibration.

The armature 2 is in a stepped shaft shape and is slidably arranged in the sliding cavity 11, wherein the armature 2 is divided into a thicker hammer body 21 and a thinner striker 22. And the trigger mechanism comprises a magnet coil 3, a first trigger position 4 and a second trigger position 5. An exhaust passage 24 is provided along the axis of the armature 2 to equalize the air pressure in the space across the armature 2 inside the entire steering wheel vibration generating device. And the rear cover 14 of the housing 1 is provided with an air discharge hole 141 for balancing the air pressure inside and outside the steering wheel vibration generating apparatus caused by a temperature change.

Wherein the striker 22 is provided with an annular recess 23, the annular recess 23 being generally larger in size than the second activation position 5. First trigger position 4 and second trigger position 5 all set up in the thin section 112 of sliding chamber 11, and first trigger position 4 and second trigger position 5 department all increase area of contact through the copper ring, and the connecting circuit between first trigger position 4 and second trigger position 5 and magnetic coil 3 is buried underground in shell 1, and magnetic coil 3's power supply is controlled by the car simultaneously, and the car storage battery is controlled by the driving computer to provide the direct current to magnetic coil 3 in this embodiment.

Meanwhile, the armature 2 is connected to the housing 1 through the reset device 6, the reset device 6 is a spring in the embodiment, and the spring is in a certain compression state in an initial state, so that vibration caused by automobile jolt and other factors can be avoided in a normal working process.

When a running computer starts the automobile steering wheel vibration generating device, at the moment, the armature 2 is pressed by a spring to be in the original position, current is transmitted to the copper ring at the first trigger position 4 from a power supply, then is transmitted to the copper ring at the second trigger position 5 through the armature 2, and then is led to the magnetic coil 3 from the copper ring at the second trigger position 5, and finally, the magnetic coil 3 returns to the power supply to form a loop.

At this time, the magnetic coil 3 is electrified to generate a magnetic force to pull the armature 2 in a direction away from the static contact piece 13, and the armature 2 always contacts the copper ring at the first trigger position 4 and the copper ring at the second trigger position 5 simultaneously in the moving process to keep the loop on, so that the magnetic coil 3 keeps the magnetic force.

When the annular groove 23 on the armature 2 completely corresponds to the second trigger position 5, as shown in fig. 2, in this embodiment, the width of the annular groove 23 is slightly larger than the second trigger position 5, so as to avoid the contact failure, at this time, the circuit is disconnected from the second trigger position 5 and the plunger 22, the magnetic coil 3 is de-energized to maintain the magnetic force of the armature 2 to disappear, and the armature 2 violently impacts the static contact piece 13 under the spring action of the reset device 6 to generate vibration. And at the moment, the loop is conducted again, and the process is repeated to realize the generation of vibration.

In another embodiment, the structure is shown in FIG. 3.

In this embodiment, including the shell 1 of plastics material, be provided with slip chamber 11 and coil chamber 12 in the shell 1, above-mentioned coil chamber 12 is outside slip chamber 11, is provided with static contact 13 at the same end of slip chamber 11 and coil chamber 12, and static contact 13 is the metal material, is copper in this embodiment, is provided with back lid 14 at the other end of shell 1, and back lid 14 and shell 1 can dismantle the connection, is provided with the exhaust hole 141 of balanced atmospheric pressure simultaneously on back lid 14.

The armature 2 is in a stepped shaft shape and is provided with a thicker hammer body 21 and a thinner striker 22, the sliding cavity 11 is also divided into a thicker thick section 111 and a thinner thin section 112 according to the shape of the armature 2, and an exhaust passage 24 for balancing enterprises inside the steering wheel vibration generating device is arranged on the central axis of the armature 2. The armature 2 and the rear cover 14 are connected through a reset device 6 made of plastic, and when the armature 2 is in a home position, the reset device 6 is in a partially compressed state and is used for abutting the armature 2 on the static contact piece 13 so as to keep the stability of the armature 2.

The trigger mechanism comprises a magnetic coil 3, a first starting position and a second trigger position 5.

Wherein the magnetic coil 3 and the static contact 13 are mutually contacted, so that the magnetic coil 3 and the static contact 13 are mutually conducted, the first trigger position 4 is arranged at the thick section 111 of the sliding cavity 11 and is contacted with the hammer body 21 of the armature 2, and the second trigger position 5 is arranged in the static contact 13.

In this embodiment, the magnetic coil 3 controls the battery to supply power through the traveling computer, the circuit schematic diagram can refer to fig. 3, after the traveling computer starts the battery to supply power, the current starts from the positive pole of the power supply and flows to the first trigger position 4 through the magnetic coil 3, in some embodiments, the first trigger position 4 is also provided with a copper ring, the current leads to the armature 2 through the first trigger position 4, and finally flows back to the negative pole from the armature 2 through the contact of the armature 2 and the static contact piece 13, so that a complete loop is formed.

When a complete loop is formed, the magnetic coil 3 is electrified to pull the armature 2 up and compress the spring of the reset device 6. At this time, the circuit is disconnected between the armature 2 and the static contact piece 13, the magnetic coil 3 loses power, and the reset device 6 pushes the armature 2 to impact on the surface of the static contact piece 13 to generate vibration. At the same time, the magnetic coil 3 is powered again, and continuous vibration can be generated by reciprocating the process.

The present embodiment has an advantage that the armature 2 and the static contact piece 13 are used as a trigger for switching on and off the circuit, and even after frequent impact, the armature 2 and the static contact piece 13 are difficult to cause device failure due to various factors such as deformation and corrosion, so that the service life is longer, fine structures such as the annular groove 23 are omitted, and the difficulty of processing and assembling is lower.

The present application further provides an embodiment of a steering wheel 7, as shown in fig. 4, the vibration generating device of the steering wheel of the vehicle as described in any of the foregoing embodiments is installed in one or more spokes of the steering wheel 7. Specifically, in a general embodiment, the steering wheel 7 has a structure with a built-in skeleton and an external foam layer, and has more than three spokes, which are arranged on the steering wheel 7 in an axisymmetric manner to ensure similar hand feeling when the steering wheel is rotated to both sides. In a general embodiment, as shown in fig. 4, the vibration generating device of the steering wheel of the vehicle is symmetrically arranged on the left and right spokes to ensure the vibration balance on both sides, so as to prevent the steering wheel 7 from being deviated due to the influence of the long-term one-side vibration. It should be noted that the steering wheel 7 vibration generating assembly in fig. 4 is a schematic diagram, and for convenience of illustration, only the structure of the static contact piece 13 and the armature 2 is shown, and those skilled in the art can obtain a practical structure according to the foregoing embodiment.

Utilize the steering wheel 7 of the steering wheel vibration generating device that this application provided, can directly supply power to the steering wheel vibration generating device through the storage battery, whole weight is far lighter than the steering wheel 7 that sets up vibrating motor's mode. Meanwhile, the steering wheel vibration generating device is small in overall size and can be arranged at any position of a spoke, most of structures do not need to be arranged in the central area of the steering wheel 7 like a traditional vibrating motor, the adverse effects of vibration on the rotating shaft of the steering wheel 7 and the structures such as an electric switch and an air bag attached to the rotating shaft of the steering wheel 7 can be reduced as much as possible, the vibration sense of a driver can be improved, and the prompting effect is improved.

In order to improve the vibration of the driver, reduce the actual vibration amplitude and reduce the influence on the steering wheel 7, in some more preferred embodiments, the end of the steering wheel vibration generating device provided with the static contact piece 13 is close to the spoke ring of the steering wheel 7, so that the vibration position is closer to the human hand, the vibration of the human hand is more sensitive, and therefore the vibration amplitude can be reduced properly, and the influence on other parts on the steering wheel 7 is less.

In a general embodiment, the steering wheel 7 has an integral structure including a spoke steel tube 71 and a plurality of spoke steel plates 72 forming a skeleton, and the skeleton is covered with a foam layer to form the complete steering wheel 7. Wherein the spoke steel plate 72 is a straight strip-shaped structure close to a flat plate. The steering wheel vibration generating device is directly mounted on the spoke steel plate 72, but the direct mounting on the spoke steel plate 72 can cause the structure of the static contact piece 13 and the whole steering wheel 7 to be in loose contact, and a large amount of loss exists in the vibration transmission process, so that part of vibration is not effectively converted into the vibration sense of a driver.

Therefore, in some preferred embodiments, the vibration generating device of the steering wheel of the automobile and the spoke ring are connected through the vibration amplifying plate 8; the vibration amplification plate 8 is U-shaped, one arm is attached to the spoke ring steel tube 71, the U-shaped bottom end of the vibration amplification plate 8 is abutted to the spoke steel plate 72 of the steering wheel 7, and the other arm is perpendicular to the plane of the spoke steel plate 72 and is connected with the automobile steering wheel vibration generation device through a connecting piece.

Specifically, the method comprises the following steps. As shown in fig. 5, fig. 5 is an axial section of a spoke of the steering wheel 7 shown in fig. 4, the steering wheel vibration generating device is mounted on a vibration amplification plate, the vibration amplification plate 8 has one arm attached to the spoke steel tube 71, the other arm is perpendicular to the spoke steel tube 72, and one end of the steering wheel vibration generating device near the static contact 13 is fixedly connected to the vertical arm of the vibration amplification plate 8 through a connecting member, so that the vibration generated by the static contact 13 can be directly transmitted to the vibration amplification plate 8 and then to the spoke steel tube 71, thereby improving the vibration transmission efficiency, increasing the vibration sense of the driver, correspondingly obtaining enough vibration sense with smaller amplitude, and reducing the influence of the steering wheel vibration generating device on the steering wheel 7.

The present invention is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements are also considered to be within the scope of the present invention.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. An automotive steering wheel vibration generating apparatus, comprising:

the coil winding device comprises a shell (1) which is cylindrical, wherein a sliding cavity (11) and a coil cavity (12) are arranged in the shell, the sliding cavity (11) is positioned in the center of the shell (1), the coil cavity (12) is arranged on the outer side of the sliding cavity (11), and a static contact piece (13) is arranged at one end of the shell (1);

the soft magnetic armature (2) is arranged in the sliding cavity (11) in a sliding mode, and one end of the armature (2) is connected with one end, far away from the static contact piece (13), of the shell (1) through a resetting device (6);

the triggering mechanism comprises a magnetic coil (3) wound in a coil cavity (12), a first triggering position (4) arranged on the inner wall of the sliding cavity (11) and a second triggering position (5) arranged on the inner wall of the sliding cavity (11) or a static contact piece (13), and the magnetic coil (3) is powered by an automobile;

when the armature (2) is in the original position, the armature (2) is in contact with the first trigger position (4) and the second trigger position (5) at the same time, the magnetic coil (3) is electrified, and the armature (2) is pulled away from the static contact piece (13) by the magnetic coil (3);

when the armature (2) is disconnected from the second trigger position (5), the magnetic coil (3) is powered off, and the armature (2) is reset by the reset device (6) and impacts the static contact piece (13) to generate vibration.

2. The vibration generating apparatus for a steering wheel of an automobile as claimed in claim 1, wherein: the second trigger position (5) is arranged on the inner wall of the sliding cavity (11);

an annular groove (23) is formed in one end, close to the static contact piece (13), of the armature (2), and when the armature (2) is located at the original position, the annular groove (23) is located between the second trigger position (5) and the static contact piece (13).

3. The vibration generating apparatus for a steering wheel of an automobile according to claim 2, wherein: and metal rings are arranged on the first trigger position (4) and the second trigger position (5).

4. The vibration generating apparatus for a steering wheel of an automobile according to claim 2, wherein: the static contact piece (13) is made of rubber.

5. The vibration generating apparatus for a steering wheel of an automobile according to claim 1, wherein: the second trigger position (5) is arranged on the static contact piece (13), the static contact piece (13) is made of conductive materials, and the static contact piece (13) and the magnetic coil (3) are mutually insulated.

6. The vibration generating apparatus for a steering wheel of an automobile according to claim 1, wherein: the sliding cavity (11) is a thick section (111) and a thin section (112) with the diameter smaller than that of the thick section (111), and the thin section (112) is arranged on one side close to the static contact piece (13);

the armature (2) is of a stepped shaft structure and is divided into a hammer body (21) arranged in the thick section (111) in a sliding mode and a striker (22) arranged in the thin section (112) in a sliding mode.

7. The vibration generating apparatus for a steering wheel of an automobile according to claim 1, wherein: a detachable rear cover (14) is arranged at one end, close to the buffer device, of the shell (1), and the buffer device is abutted to the rear cover (14);

the rear cover (14) is provided with an exhaust hole (141), and the armature (2) is provided with an exhaust channel (24) along the axis direction.

8. A steering wheel, characterized in that:

a vehicle steering wheel vibration generating device according to any of claims 1-7 mounted in one or more spokes of said steering wheel (7).

9. A steering wheel according to claim 8, wherein:

one end of the automobile steering wheel vibration generating device, which is provided with a static contact piece (13), is close to a spoke ring of a steering wheel (7).

10. A steering wheel according to claim 8, wherein:

the automobile steering wheel vibration generating device is connected with the spoke ring through a vibration amplifying plate (8);

the vibration amplification plate (8) is U-shaped, one arm is attached to the spoke ring steel tube (71), the U-shaped bottom end of the vibration amplification plate (8) abuts against a spoke steel plate (72) of the steering wheel (7), and the other arm is perpendicular to the plane where the spoke steel plate (72) is located and is connected with the automobile steering wheel vibration generation device through a connecting piece.

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