Electronic equipment and steering gear damping device thereof

Abstract

The utility model discloses an electronic device and a steering gear damping device thereof. The steering gear damping device includes a driving member, a damper and a shock absorbing member. An output hole is provided inside the damper, and the output hole is used for the output shaft of the driving member to extend therein; the shock absorbing member is connected to the outer periphery of the damper, and when the output shaft extends into the output hole, the shock absorbing member is used to have an interference fit with the housing. Compared with the prior art, the present application is provided with a shock absorbing member, and the shock absorbing member is provided on the outer periphery of the damper. When the damper expands, the shock absorbing member has an interference fit with the device, which can compensate for the tolerance and avoid the gap between the damper and the device being too large. At the same time, it can further achieve the effect of shock absorption, improve the transmission efficiency, and reduce the noise. The electronic device using the above-mentioned steering gear damping device can achieve the effect of reducing the working noise and improving the transmission stability.

Description

Technical Field

[0001] The utility model relates to the field of electronic equipment, and in particular to an electronic equipment and a steering gear damping device thereof. Background Art

[0002] At present, electric servos are increasingly commonly used in smart cockpits and smart homes. For example, in smart cockpits, electric servos can be used to adjust the position and direction of seats, as well as control the position of pedals and steering wheels, and are very convenient to operate. Currently, electronic equipment has increasingly higher requirements for the size and performance of drive components, requiring higher stability and lower noise during operation, especially the transmission part, which seriously affects the design and promotion of the entire electric drive structure, and is also an important constraint on the design of the assembly.

[0003] Existing electric servos usually use dampers to improve performance and stability, among which friction damping is widely used due to its simple structure and good attenuation effect. However, it was found in the application process that after the damper and the output shaft are connected by interference, the outer diameter expands and it is difficult to match with the inner diameter of the shell. If an excessively large assembly gap is used, it will cause irreversible plastic deformation of the outer ring of the damper after multiple operations, affecting the holding torque and even the hovering effect; at the same time, since the expansion change of the outer diameter of the damper after press-fitting is not a fixed value, but a range value affected by the press-fitting speed and force lock, after the damper expands, the damper contacts the inside of the shell, which is not conducive to the stable output and noise reduction of the product. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an electronic device and a steering gear damping device thereof, which can achieve the effects of shock absorption and noise reduction.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] A steering gear damping device comprises a driving member, a damper and a shock absorbing member, wherein an output hole is provided inside the damper, and the output hole is used for the output shaft of the driving member to extend therein; the shock absorbing member is connected to the outer periphery of the damper, and when the output shaft extends into the output hole, the shock absorbing member is used for interference fit with a housing.

[0007] As one of the implementation modes, the shock absorbing member is sleeved on the outer circumference of the damper, and when the output shaft does not extend into the output hole, the shock absorbing member is used to fit with the housing in a clearance.

[0008] As one implementation manner, the shock absorbing component is made of rubber.

[0009] As one of the implementation modes, the shock absorbing component and the damper adopt a secondary overmolding structure, or the shock absorbing component is adhered to the outer periphery of the damper.

[0010] As one embodiment, the damper includes a main body and a positioning portion, the positioning portion is connected to the outer periphery of the main body, the main body is provided with the output hole, the shock absorbing member is connected to the outer periphery of the main body and abuts against the positioning portion along the axial direction of the damper.

[0011] As one implementation manner, the steering gear damping device includes a housing, the housing is provided with a mounting hole and a positioning hole, the damper is arranged in the mounting hole, and the positioning portion is matched with the positioning hole.

[0012] As one implementation manner, the damper is arranged in the mounting hole, and along the radial direction of the damper, the damper is clearance-matched with the housing; along the axial direction of the damper, the damper is in contact with the housing.

[0013] As one implementation manner, the damper is provided with a material reduction groove, the material reduction groove is communicated with the output hole, and the wall thickness of the damper located in the material reduction groove is smaller than the wall thickness of the rest of the damper.

[0014] As one embodiment, the damper includes a main body and a reinforcing rib, the main body is provided with the output hole, the main body is provided with the output hole, and the reinforcing rib is connected to the inner side of the main body and protrudes toward the direction close to the output hole.

[0015] Another object of the present utility model is to provide an electronic device, comprising the servo damping device and the position feedback device described in any one of the above embodiments, wherein the servo damping device is electrically connected to the position feedback device, and the position feedback device is used to detect the position of the output shaft in the driving member.

[0016] The beneficial effects of the utility model are as follows: the embodiment of the present application provides an electronic device and a servo damping device thereof, the servo damping device comprising a driving member, a damper and a shock absorbing member, the damper is provided with an output hole inside, the output hole is used for the output shaft of the driving member to extend into; the shock absorbing member is connected to the outer periphery of the damper, and when the output shaft extends into the output hole, the shock absorbing member is used to have an interference fit with the housing. Compared with the prior art, the present application is provided with a shock absorbing member, and the shock absorbing member is arranged on the outer periphery of the damper. When the damper expands, the shock absorbing member has an interference fit with the device, which can compensate for the tolerance and avoid the gap between the damper and the device being too large, and at the same time can further achieve the effect of shock absorption, improve the transmission efficiency and reduce the noise. The electronic device using the above-mentioned servo damping device can achieve the effect of reducing the working noise and improving the transmission stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a damper according to an embodiment of the utility model is shown;

[0018] Figure 2 A cross-sectional schematic diagram of a damper according to an embodiment of the utility model is shown;

[0019] Figure 3 A cross-sectional schematic diagram of a steering gear damping device according to an embodiment of the utility model is shown.

[0020] Figure numerals: 1, driving member; 11, output shaft; 2, damper; 21, output hole; 22, main body; 23, positioning part; 24, reinforcing rib; 25, material reduction groove; 3, shock absorbing member; 4, shell; 41, mounting hole; 42, positioning hole. DETAILED DESCRIPTION

[0021] In the present invention, the terms "disposed", "provided with", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] The orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "radial", "circumferential", etc. are based on the orientation or position relationship shown in the drawings and are only for the convenience of 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 and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] See also Figure 1 The embodiment of the present application provides a steering gear damping device, comprising a driving member 1, a damper 2 and a shock absorbing member 3. The damper 2 has an output hole 21 formed inside, and the output hole 21 is used for the output shaft 11 of the driving member 1 to extend therein; the shock absorbing member 3 is connected to the outer periphery of the damper 2, and when the output shaft 11 extends thereinto, the shock absorbing member 3 is used for interference fit with the housing 4. The driving member 1 may be a motor.

[0027] In practical applications, when the driver 1 rotates rapidly or stops suddenly, vibration or shock may be generated. The damper 2 can help absorb these energies, reduce vibrations, and enable the driver 1 to stabilize at the target position more quickly. Therefore, the present application sets a damper 2 at the output shaft 11 of the driver 1. Specifically, the damper 2 is provided with an output hole 21, and the output shaft 11 extends into the output hole 21. The damper 2 is then installed in the housing 4 of the device, such as a smart cockpit or a smart home. When the driver 1 is started and the output shaft 11 rotates, friction is generated between the damper 2 and the output shaft 11. This friction can reduce the vibration generated by the rotation of the output shaft 11, prevent the vibration from affecting some parts inside the housing 4, and enable the damper 2 to enable the driver 1 to hover quickly and stably when the driver 1 stops suddenly.

[0028] When the output shaft 11 is inserted into the output hole 21, the output hole 21 and the output shaft 11 are interference fit, and the output shaft 11 squeezes the damper 2, causing the damper 2 to expand outward. The damper 2 relies on elasticity to hold the output shaft 11 to achieve a certain holding torque. At the same time, since the damper 2 expands outward, the outer diameter of the damper 2 increases, and the increase value is uncontrollable. Therefore, when the damper 2 is installed in the shell 4, the gap between the damper 2 and the shell 4 is uncontrollable. If the gap is too large, the holding torque is affected and even the effect of the output shaft 11 hovering is affected; if the gap is too small, the damper 2 contacts with the shell 4, affecting the stability and noise reduction effect of the shell 4.

[0029] Based on this, the present application provides a shock absorbing member 3, which is arranged on the outer periphery of the damper 2. When the damper 2 expands, the shock absorbing member 3 is interference fit with the equipment, which can compensate for the tolerance and avoid excessive gap between the damper 2 and the equipment. At the same time, it can further achieve the effect of shock absorption, improve transmission efficiency and reduce noise.

[0030] It should be noted that the holding torque refers to the resistance applied by the damper 2 to the output shaft 11 to keep the output shaft 11 at a specific position.

[0031] See also Figure 2 In one embodiment, the shock absorbing member 3 is sleeved on the outer periphery of the damper 2 , and when the output shaft 11 does not extend into the output hole 21 , the shock absorbing member 3 is used to be clearance-fitted with the housing 4 .

[0032] The shock absorber 3 is sleeved on the outer circumference of the damper 2, and can be evenly interference fit with the shell 4 in the circumferential direction to ensure the stability of the connection. At the same time, when the output shaft 11 does not extend into the output hole 21, a gap is left between the shock absorber 3 and the shell 4. This gap provides a certain deformation margin for the damper 2 to deform.

[0033] In one embodiment, the material of the shock absorbing member 3 can be rubber, which is easy to deform and has a good effect of shock absorption and noise reduction. The damper 2 can be made of injection molding material, which is economical and practical, can reduce production costs, and can ensure the consistency of each damper 2 component during mass production, reducing the variation of size and performance.

[0034] In one embodiment, the shock absorber 3 and the damper 2 adopt a secondary rubber-coated molding structure. Specifically, the secondary rubber-coating is usually to apply an additional layer of rubber or other elastic material on the moving parts. The damper 2 and the shock absorber 3 adopt the form of secondary rubber-coating to increase the wear resistance of both, extend the service life, and reduce vibration and impact, and reduce noise.

[0035] In other embodiments, the shock absorbing member 3 may also be adhered to the outer periphery of the damper 2 in the form of adhesive. This arrangement makes installation more convenient and the structure simpler.

[0036] See again Figure 1 and Figure 2 The damper 2 includes a main body 22 and a positioning portion 23. The positioning portion 23 is connected to the outer periphery of the main body 22. The main body 22 is provided with an output hole 21. The shock absorbing member 3 is connected to the outer periphery of the main body 22 and abuts against the positioning portion 23 along the axial direction of the damper 2.

[0037] In actual applications, the positioning portion 23 can be evenly arranged in an annular direction on the outer periphery of the main body 22, and the shock absorber 3 is sleeved on the outer periphery of the main body 22 and abuts against the positioning portion 23 along the axial direction. The positioning portion 23 realizes the positioning function, and can quickly determine the position of the shock absorber 3, thereby improving the installation speed of the shock absorber 3.

[0038] See also Figure 3 The steering gear damping device comprises a housing 4 , the housing 4 is provided with a mounting hole 41 and a positioning hole 42 , the damper 2 is arranged in the mounting hole 41 , and the positioning portion 23 is matched with the positioning hole 42 .

[0039] In one embodiment, the shell 4 is provided with a mounting hole 41 and a positioning hole 42. The damper 2 is installed in the mounting hole 41 and the positioning hole 42 and the positioning portion 23 play a positioning role, thereby realizing a quick positioning function of the damper 2, making it more convenient to install the damper 2 in the shell 4. There is no need for the operator to frequently align the position. The damper 2 can be installed by simply inserting the positioning portion 23 into the positioning hole 42.

[0040] See again Figure 3 For the sake of clarity, Figure 3 X represents the axial direction, and Y represents the radial direction; the damper 2 is arranged in the mounting hole 41, and along the radial direction of the damper 2, the damper 2 and the housing 4 are clearance-matched; along the axial direction of the damper 2, the damper 2 and the housing 4 are abutted.

[0041] In actual applications, since the output shaft 11 generates a large friction force on the damper 2 when it rotates, in order to prevent the damper 2 from moving again under the action of the friction force and causing it to separate from the housing 4, when the damper 2 is located in the mounting hole 41, the damper 2 abuts against the hole wall of the mounting hole 41 along the axial direction, which can effectively prevent the damper 2 from separating from the mounting hole 41 and ensure the working stability of the device.

[0042] See again Figure 1 and Figure 2 The damper 2 is also provided with a material reduction groove 25 , which is communicated with the output hole 21 , and the wall thickness of the damper 2 located in the material reduction groove 25 is smaller than the wall thickness of the other parts of the damper 2 .

[0043] During the movement, the output shaft 11 may produce foreign matter that rubs when rotating. The material reduction groove 25 can be used to store the foreign matter to prevent the foreign matter from being stuck between the output shaft 11 and the damper 2 and affecting the rotation of the output shaft 11.

[0044] The damper 2 includes a reinforcing rib 24 , which is connected to the inner side of the main body 22 and protrudes toward the direction close to the output hole 21 .

[0045] Specifically, the reinforcing rib 24 is connected to the hole wall of the output hole 21 and extends to the inside of the output hole 21 to form a protrusion. The wall thickness of the main body 22 at the part with the reinforcing rib 24 is thicker and has a larger shrinkage, which increases the structural strength inside the damper 2. At the same time, it can form a gap between the damper 2 and the output shaft 11, reduce friction and wear, and improve movement accuracy and durability. In addition, the reinforcing rib 24 can be arranged on opposite sides of the material reduction groove 25, for example, a material reduction groove 25 can be formed between two adjacent reinforcing ribs 24.

[0046] An embodiment of the present application also provides an electronic device, including the above-mentioned servo damping device, a position feedback device and a control system, wherein the servo damping device is electrically connected to the position feedback device, and the position feedback device is used to detect the position of the output shaft 11 in the driving member 1 and feed back the information to the control system so as to accurately control the rotation angle of the output shaft 11.

[0047] Different from the prior art, the embodiment of the present application provides an electronic device and a servo damping device thereof, the servo damping device comprising a driving member 1, a damper 2 and a shock absorbing member 3, the damper 2 is provided with an output hole 21 inside, the output hole 21 is used for the output shaft 11 of the driving member 1 to extend into; the shock absorbing member 3 is connected to the outer periphery of the damper 2, and when the output shaft 11 extends into the output hole 21, the shock absorbing member 3 is used to have an interference fit with the housing 4. Compared with the prior art, the present application is provided with a shock absorbing member 3, the shock absorbing member 3 is arranged on the outer periphery of the damper 2, when the damper 2 expands, the shock absorbing member 3 and the device have an interference fit, so that the tolerance can be compensated, and the gap between the damper 2 and the device is avoided to be too large, and at the same time, the shock absorbing effect can be further achieved, the transmission efficiency can be improved, and the noise can be reduced. The electronic device using the above-mentioned servo damping device can achieve the effect of reducing working noise and improving transmission stability.

[0048] The above is only a specific implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A steering gear damping device, characterized in that: include: A driving member (1); A damper (2), wherein an output hole (21) is provided inside the damper (2), and the output hole (21) is used for allowing the output shaft (11) of the driving member (1) to extend therein; A shock absorbing member (3) is connected to the outer periphery of the damper (2), and when the output shaft (11) extends into the output hole (21), the shock absorbing member (3) is used to be interference fit with the housing (4).

2. The steering gear damping device according to claim 1, characterized in that: The shock absorbing member (3) is sleeved on the outer circumference of the damper (2), and when the output shaft (11) does not extend into the output hole (21), the shock absorbing member (3) is used to fit with the housing (4) in a clearance manner.

3. The steering gear damping device according to claim 2, characterized in that: The material of the shock absorbing component (3) is rubber.

4. The steering gear damping device according to claim 1, characterized in that: The shock absorbing component (3) and the damper (2) adopt a secondary rubber encapsulation molding structure, or the shock absorbing component (3) is adhered to the outer periphery of the damper (2).

5. The steering gear damping device according to claim 1, characterized in that: The damper (2) comprises a main body (22) and a positioning portion (23), wherein the positioning portion (23) is connected to the outer periphery of the main body (22), the main body (22) is provided with the output hole (21), and the shock absorbing member (3) is connected to the outer periphery of the main body (22) and abuts against the positioning portion (23) along the axial direction of the damper (2).

6. The steering gear damping device according to claim 5, characterized in that: The steering gear damping device comprises a housing (4), the housing (4) is provided with a mounting hole (41) and a positioning hole (42), the damper (2) is arranged in the mounting hole (41), and the positioning portion (23) is matched with the positioning hole (42).

7. The steering gear damping device according to claim 6, characterized in that: The damper (2) is arranged in the mounting hole (41); along the radial direction of the damper (2), the damper (2) and the housing (4) are clearance-matched; along the axial direction of the damper (2), the damper (2) and the housing (4) are abutted.

8. The steering gear damping device according to claim 1, characterized in that: The damper (2) is provided with a material reduction groove (25), the material reduction groove (25) is communicated with the output hole (21), and the wall thickness of the damper (2) located in the material reduction groove (25) is smaller than the wall thickness of other parts of the damper (2).

9. The steering gear damping device according to claim 8, characterized in that: The damper (2) comprises a main body (22) and a reinforcing rib (24), the main body (22) being provided with the output hole (21), and the reinforcing rib (24) being connected to the inner side of the main body (22) and protruding in a direction close to the output hole (21).

10. An electronic device, characterized in that: It comprises the steering gear damping device and the position feedback device as described in any one of claims 1 to 9, wherein the steering gear damping device is electrically connected to the position feedback device, and the position feedback device is used to detect the position of the output shaft (11) in the driving member (1).

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