Shock absorber, assembly to be subjected to shock absorption and movable platform

Abstract

The utility model provides a shock absorber, an assembly to be subjected to shock absorption and a movable platform. The shock absorber comprises a first connecting part, a shock absorption part and a second connecting part which are sequentially arranged in the first direction, the first connecting part is used for being connected with a component to be subjected to shock absorption, the second connecting part is used for being connected with a movable platform, and the movable platform is used for bearing the component to be subjected to shock absorption; the vibration reduction part comprises a penetrating part, the penetrating part penetrates through the vibration reduction part in the second direction, and the second direction is different from the first direction. According to the shock absorber, weight reduction of the shock absorber can be achieved, light weight of the shock absorber is achieved, more deformation space can be provided for deformation of the shock absorber, and the shock absorber can better adapt to the development trend of light weight and miniaturization of a current motion platform or device.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of damping, especially a damper, a to-be-damped assembly and a movable platform. BACKGROUND

[0002] In some movable platforms or devices, it is often necessary to weaken the influence of mechanical vibration.

[0003] A common damping measure is to use a spherical damper with elastic deformation performance, install the spherical damper in the corresponding device, so that it is between the fixed structure of the device and the to-be-damped component, when the device shakes or wobbles, the damper deforms, can absorb vibration energy, and weakens the vibration of the to-be-damped component, thereby achieving the purpose of buffering and damping.

[0004] However, the spherical damper has a limited compression deformation space when it deforms elastically, and it is difficult to achieve a smaller compression volume, and it is difficult to adapt to the development trend of lightweight and miniaturization of current movable platforms or devices. SUMMARY

[0005] Therefore, in order to solve the problem that the existing damper has a limited compression deformation space, it is difficult to achieve a smaller compression volume, and it is difficult to adapt to the development trend of lightweight and miniaturization of current movable platforms or devices, the utility model provides a damper, a to-be-damped assembly and a movable platform.

[0006] In a first aspect, the utility model embodiment provides a damper, which comprises: a first connecting part, a damping part and a second connecting part arranged in sequence along a first direction, the first connecting part is used for connecting with a to-be-damped component, the second connecting part is used for connecting with a movable platform, and the movable platform is used for carrying the to-be-damped component.

[0007] The damping part comprises a through part, the through part penetrates the damping part along a second direction, and the second direction is different from the first direction.

[0008] In a second aspect, the utility model embodiment provides a to-be-damped assembly, which comprises a to-be-damped component and a damper as described in the first aspect of the utility model.

[0009] In a third aspect, the utility model embodiment provides a movable platform, which comprises a damper as described in the first aspect of the utility model.

[0010] The damper provided by the utility model embodiment has at least the following advantages:

[0011] The vibration damper in this embodiment of the invention has a first connecting portion, a damping portion, and a second connecting portion arranged along a first direction, and a through portion provided along a second direction. This allows more material to be removed from the damping portion in the second direction, thereby creating more space for the compression deformation of the damping portion to accommodate the compression deformation of the vibration damper. Therefore, this vibration damper in this embodiment of the invention can both reduce the weight of the vibration damper and provide more deformation space for its deformation. It can better adapt to the current development trend of lightweighting and miniaturization of motion platforms or devices.

[0012] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A schematic isometric view of a vibration damper according to an embodiment of the present invention is shown.

[0015] Figure 2 The diagram schematically illustrates a partial assembly structure of a vibration damper, a component to be damped, and a movable platform according to an embodiment of the present invention.

[0016] Figure 3 An embodiment of the present invention is illustrated schematically. Figure 1 A schematic diagram of the vibration damper along the Y direction;

[0017] Figure 4 An isometric view of another vibration damper according to an embodiment of the present invention is shown schematically.

[0018] Figure 5 An embodiment of the present invention is illustrated schematically. Figure 4 A schematic diagram of the vibration damper along the -Z direction;

[0019] Figure 6 An embodiment of the present invention is illustrated schematically. Figure 4 A cross-sectional view of position AA in the middle;

[0020] Figure 7A schematic view of two through parts in the damper of the embodiment of the utility model along the Z direction is shown;

[0021] Figure 8 A schematic view of two through parts in the damper of the embodiment of the utility model around the Z direction is shown;

[0022] Figure 9 A schematic view of the embodiment of the utility model Figure 2 is shown;

[0023] Figure 10 A sectional view of the embodiment of the utility model Figure 9 is shown;

[0024] Figure 11 A schematic view of a movable platform of the embodiment of the utility model is shown.

[0025] Explanation of reference signs:

[0026] Damper-10, component to be damped-20, movable platform-30, first connecting part-101, damping part-102, second connecting part-103, through part-1021, first clamping ring-1011, second clamping ring-1031, first main body part-201, first connecting lug-202, first limiting structure-203, second main body part-301, second connecting lug-302, second limiting structure-303. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] It should be understood that the "one embodiment" or "an embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the utility model. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily mean the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.

[0029] The damper of the embodiment of the utility model is a damping component which can be installed in a platform or device with a moving function, and can weaken mechanical vibration caused by shaking or swinging when the platform or device moves through deformation of the damper, so as to avoid further transmission of the mechanical vibration to a damping component to be installed on the platform or device.

[0030] In addition, compared with a damping ball (for example, the damping ball is a solid structure or a hollow structure and is not hollowed out around) of the same volume, the damper 10 has the effects of better damping effect, lower damping frequency and smaller weight, or compared with a damping ball (for example, the damping ball is a solid structure or a hollow structure and is not hollowed out around) of the same damping effect, the damper 10 has the effect of smaller volume and space.

[0031] Referring to Figure 1 , it is a perspective view of a damper 10, and the damper 10 comprises a first connecting part 101, a damping part 102 and a second connecting part 103 arranged in sequence along a first direction, that is, the first direction refers to a direction formed by linear arrangement of the first connecting part 101, the damping part 102 and the second connecting part 103.

[0032] As Figure 2 , it is a local structure schematic view of the damper 10, a damping component 20 and a movable platform 30. When the damper 10 is used for damping, the damper 10 can be connected with the damping component 20 and connected with the movable platform 30. Specifically, for example, the first connecting part 101 is connected with the damping component 20, and the second connecting part 103 is connected with a fixed structure such as a shell or a base in the movable platform 30. Thus, the damping component 20 is indirectly installed on the movable platform 30 through the damper 10 and is carried by the movable platform 30. When the movable platform 30 shakes or shakes, the vibration energy generated thereby can be absorbed by the damper 10, so as to hinder the vibration from continuing to be transmitted to the damping component 20.

[0033] Combined with Figure 1 , the damping part 102 of the damper 10 is not a complete solid structure, but has a through part 1021 arranged along a second direction different from the first direction and penetrating the damping part 102. That is, along the second direction, the damping part 102 has the hollow and transparent through part 1021. As Figure 1As shown in the diagram, the through portion 1021 can be a through hole with its axis parallel to the second direction. The number of through holes is not limited. Each through hole forms two opposing openings on the circumferential sidewall of the vibration damping portion 102 along the second direction.

[0034] Combination Figure 1 and Figure 2 As illustrated, it is easy to understand that when the movable platform 20 moves, the mechanical vibration is mainly located in the first direction. Therefore, the force that causes the damper 10 to deform also acts in the first direction. In this embodiment of the invention, a through portion 1021 is provided along the second direction, so that more material can be removed from the damping portion 102 in the second direction, thereby making more space available for the compression deformation of the damping portion 102 to accommodate the compression deformation of the damper 10.

[0035] Therefore, the vibration damper 10 of this embodiment of the present invention, through the through portion 1021 provided in the second direction, can not only reduce the weight of the vibration damper 10 and achieve lightweighting, but also provide more deformation space for the deformation of the vibration damper 10, thereby reducing the stiffness of the vibration damper. In addition, the vibration damper 10 of this application has lower stiffness and lower vibration frequency than vibration damping balls in related technologies (such as vibration damping balls that are solid structures or hollow structures without hollowing out the surrounding area). Therefore, the component to be damped 20 can also be made lighter, thus achieving an overall weight reduction of the movable platform 30.

[0036] Optionally, as described in the foregoing embodiments, in the vibration damper 10 of this utility model embodiment, the direction in which the first connecting portion 101, the damping portion 102, and the second connecting portion 103 are arranged is a first direction, and the direction in which the through portion 1021 is disposed is a second direction; the first direction and the second direction are different directions. Figure 1 As illustrated, in one embodiment, the first direction can be the Z direction shown in the figure, and the second direction can be the Y direction shown in the figure. The first direction and the second direction can be two mutually perpendicular directions, that is, the Z direction and the Y direction shown in the figure are perpendicular to each other.

[0037] It should be noted that although the second direction is perpendicular to the first direction in this embodiment of the invention, considering the actual processing errors of the product, if the angle between the second direction and the first direction is close to 90°, it can also be considered as basically perpendicular. For example, an angle between the two directions between 80° and 100° can also meet the usage requirements and still fall under the protection of this embodiment of the invention.

[0038] Optionally, the static state of the damping part 102 refers to the state that the damping part 102 reaches static balance. In an embodiment, after the damper 10 is connected with the damping component 20 and the movable platform 30, when the damper 10 is not subjected to a vibration load, the self-weight pressure of the damping component 20 on the damper 10 is balanced with the elastic force of the damper 10 itself, and the damping part 102 is in a static state. In addition, the static state of the damping part 102 can also be referred to as a balanced state, an original state, or a non-stretched state. At this time, the through part 1021 and the damping part 102 surrounding the through part 1021 are not deformed by the vibration load.

[0039] In combination with the schematic diagram of FIG. 1, the first direction Z and the second direction Y are perpendicular to each other. Figure 1 Figure 3 In combination with the schematic diagram of FIG. 1, the first direction Z and the second direction Y are perpendicular to each other.

[0040] When the damping part 102 is in a static state, for the through part 1021, it has a size a1 along the first direction Z and a size b1 along the third direction X, and the size a1 and the size b1 can be the same or different. In combination with the schematic diagram, it is easy to understand that when the size a1 and the size b1 are different, a wider hollow span is formed in the direction with the larger size, thereby more facilitating the deformation of the damping part 102 along the direction with the smaller size, and the vibration frequency of the damping part 102 in the direction with the smaller size is reduced more significantly. For example, when the size a1 is smaller than the size b1, the vibration frequency of the damping part 102 along the Z direction is reduced more significantly.

[0041] In addition, the smaller the difference between the size b2 and the size b1, that is, the thinner the wall thickness of the damping part 102, the more the frequency of the damper 10 along the first direction Z is reduced; in addition, the larger the size a1, that is, the more hollow in the middle, the frequency of the damper 10 along the first direction Z is further reduced, and the frequency of the damper 10 along the second direction Y and the third direction X is also reduced. In addition, by reducing the thickness of the damping part 102, the frequency of the damper 10 along the first direction Z is further reduced, and the frequency of the damper 10 along the second direction Y and the third direction X is also reduced.

[0042] Therefore, as the movable platform or device pursues lightness and miniaturization, the damper of the embodiment of the utility model can have lower stiffness and lower damping frequency due to the foregoing structural design, and can better adapt to lighter and smaller movable platforms or devices.

[0043] ​Furthermore, similar to the shape of the through portion 1021, when the damping portion 102 is in a static state, it has a dimension a2 along the first direction Z and a dimension b2 along the third direction X. Dimensions a2 and b2 can be the same or different. When dimensions a2 and b2 are different, the damping portion 102 uses less material in the direction with the smaller dimension, resulting in reduced rigidity in that direction and improved damping performance.

[0044] Optionally, as described in the foregoing embodiments, the first connecting portion 101, the second connecting portion 103, and other structures other than the vibration damper 10 are connected along the first direction Z. Therefore, the first direction Z is also the direction of action of the vibration load.

[0045] In one embodiment of this utility model, when the damping part 102 is in a static state, the dimension a1 of the through part 1021 along the first direction Z is smaller than the dimension b1 of the through part 1021 along the third direction X. Compared with the common spherical damper, the damper 10 with this shape structure has a larger dimension b1 in the third direction X. Therefore, when the vibration load is applied to the first direction Z, the first direction Z has a lower vibration frequency. The damping and buffering performance in this direction is better, and it is also easier to make the vibration frequency of the damper 10 in the X direction consistent with the vibration frequency region in the Z direction. Furthermore, since the dimension b1 of the third direction X is larger than the dimension a1 of the first direction Z, the vibration reduction frequencies in the three directions (i.e., the first direction Z, the second direction Y, and the third direction X) can be made close, and the vibration reduction frequencies in the three directions (i.e., the first direction Z, the second direction Y, and the third direction X) can be made more consistent. The advantage of this is that when the vibration reduction frequency of the damper 10 of the component to be vibration-damped (e.g., IMU) avoids the operating frequency of the movable platform 30 (e.g., the propeller frequency of an aircraft), it is not necessary to consider the different frequencies in the three directions separately. Only the parameter of the wall thickness of the damper 10 needs to be modified, making the design of the solution to avoid the propeller frequency simpler and more efficient.

[0046] In addition, the dimension a1 of the through portion 1021 along the first direction Z is smaller than the dimension b1 of the through portion 1021 along the third direction X, which can also achieve the goal of making the vibration damper as small as possible while achieving the reduction of vibration frequency and the improvement of vibration reduction effect.

[0047] In addition, when the dimension a2 of the damping part 102 along the first direction Z is smaller than the dimension b2 of the damping part 102 along the third direction X, it helps to make the damper 10 have a smaller dimension in the first direction Z, making it easier to install the damper 10 in a narrow space.

[0048] Optionally, in one embodiment, the cross-sectional shape of either the through portion 1021 or the damping portion 102 can be elliptical or polygonal, where the cross-section refers to the section perpendicular to the second direction Y. It is readily understood that for an ellipse, the major axis can correspond to the aforementioned dimensions b1 or b2, and the minor axis can correspond to the aforementioned dimensions a1 or a2. For a polygon, when the polygon is elongated, the direction in which its elongation extends is parallel to the aforementioned third direction X.

[0049] For example, the polygon in the embodiments of this utility model may include shapes such as hexagons, rhombuses, or rectangles. It should be noted that the above-mentioned polygon may be a regular polygon with all sides of equal length, or it may be an irregular polygon with sides of not exactly the same length. Optionally, the polygon may have smooth rounded corners at adjacent sides to reduce local stress concentration and reduce the risk of damage at corners.

[0050] like Figure 3 As shown, the cross-section of the through portion 1021 in this embodiment of the present invention can be a hexagonal shape that is approximately rhomboid, and each corner can be rounded.

[0051] Optionally, Figure 4 to Figure 6 Another vibration damper 10 according to an embodiment of the present invention is also shown. Figure 5 for Figure 4 The diagram shown is a top view of the vibration damper 10 along the -Z direction. Figure 6 for Figure 5 A cross-sectional view of position AA. In this type of vibration damper 10, the second direction is... Figure 6 The L direction is shown in the diagram, and the angle between the L direction and the first direction Z is an acute angle α. At this time, the axis of the through part 1021 is inclined relative to the first direction Z, and such a shock absorber 10 also has the characteristics of being lighter and having a smaller compressed volume.

[0052] Optionally, in this embodiment of the invention, the cross-section of the damping part 102 and the cross-section of the through part 1021 can be designed to have the same shape. This structure simplifies the manufacturing mold and process of the damper 10, reducing manufacturing difficulty and cost. Furthermore, it allows the sidewalls of the damping part 102 to have the same or similar wall thickness, resulting in a balanced and consistent damping effect throughout the periphery. Figure 3 As shown, the cross-section of the vibration damping part 102 and the cross-section of the through part 1021 are both approximately rhomboid in shape.

[0053] Optionally, in this embodiment of the present invention, the through portion 1021 of the vibration damping part 102 may include one. Optionally, if the installation space allows, the number of through portions 1021 may be more, and the vibration damping part 102 may be provided with two or more through portions 1021.

[0054] Specifically, as Figure 7 shown in the schematic diagram, taking the example that the damping part 102 is provided with two through parts 1021, the two through parts 1021 are arranged along the first direction Z in sequence, and the axis of each through part 1021 is parallel to each other. At this time, each through part 1021 is stacked together along the first direction Z, forming a structure similar to a spring in series, which can further reduce the vibration frequency of the first direction Z and improve the damping performance of the damper 10.

[0055] As Figure 8 shown in the schematic diagram, taking the example that the damping part 102 is provided with three through parts 1021, the three through parts 1021 are arranged around the first direction Z at the four sides of the damping part 102, and each through part 1021 penetrates each other. In combination with the schematic diagram, it is easy to understand that the more through parts 1021 around the damping part 102, the more material is removed, which is more conducive to achieving the lightweight of the damper 10. Moreover, as the hollow space around the damping part 102 increases, the rigidity of the damping part 102 along the Z direction can be reduced, and the damping performance can be improved.

[0056] In addition, in some embodiments, the through parts 1021 around the first direction Z and the through parts 1021 arranged along the first direction Z can be designed at the same time. The corresponding advantages are as described above, and will not be described here.

[0057] Optionally, in order to facilitate the rapid disassembly and assembly of the damper 10, when the damper 10 is connected with the part 20 to be damped, the first connecting part 101 and the part 20 to be damped are connected in a non-permanent fixed detachable connection mode. When the damper 10 is connected with the movable platform 30, the second connecting part 103 and the movable platform 30 are connected in a non-permanent fixed detachable connection mode. In the specific implementation of the above detachable connection, the first connecting part 101 and the second connecting part 102 can each be designed as a buckle structure or a threaded structure, etc. A fastener such as a screw or a pin can also be used to fixedly connect the first connecting part 101 and the second connecting part 102 with the corresponding parts.

[0058] Optionally, as Figure 1 and Figure 2As shown, in one embodiment, the first connecting part 101 is provided with a first clamping ring 1011 for detachable connection with the component to be damped 20, and the second connecting part 103 is provided with a second clamping ring 1031 for detachable connection with the movable platform 30. When the first connecting part 101 is assembled and connected with the component to be damped 20, the first clamping ring 1011 is sleeved and installed on the corresponding part of the component to be damped 20. When the second connecting part 103 is assembled and connected with the movable platform 30, the second clamping ring 1031 is sleeved and installed on the corresponding part of the movable platform 30. It can be seen that the first connecting part 101 and the second connecting part 103 with such a structure help to improve the disassembly and assembly efficiency of the damper 10. In other embodiments, the first connecting part 101 can be other shapes in addition to the clamping ring, and other connection methods are used to assemble and connect with the component to be damped 20, for example, the first connecting part 101 is a protruding structure along the Z direction, and through the notch provided on the component to be damped 20 and matched with the protruding structure, the first connecting part 101 and the component to be damped 20 can be installed through the protruding structure and the notch. In addition, the second connecting part 103 can be other shapes in addition to the clamping ring, and other connection methods are used to assemble and connect with the movable platform 30, for example, the second connecting part 103 is a protruding structure along the Z direction, and through the notch provided on the movable platform 30 and matched with the protruding structure, the second connecting part 103 and the movable platform 30 can be installed through the protruding structure and the notch.

[0059] In addition, in combination with Figure 1 the schematic, it should be noted that the XYZ reference coordinate system shown is the reference coordinate of the damper 10 itself, and when it is assembled and connected with the component to be damped 20 and the movable platform 30 according to the Figure 2 , Figure 9 and Figure 10 , the Z direction of the damper 10 itself can be arranged obliquely relative to the horizontal plane of the component to be damped 20 and the movable platform 30 (see the cross-sectional view of Figure 10 ), and it can be understood that at this time, when the damper 10 stretches and deforms along its own Z direction to damp and absorb energy, it can produce two components in the horizontal direction H and the vertical direction V, compared with arranging the Z direction of the damper 10 itself according to the vertical direction, it can produce damping effect in both the horizontal direction and the vertical direction.

[0060] Optionally, on the basis of the foregoing embodiments, when the first clamping ring 1011 is assembled and connected with the component 20 to be damped, the two can be made to have an interference fit by virtue of the designed assembly size relationship, thereby ensuring the connection reliability of the damper 10 with the movable platform 30. When the second clamping ring 1031 is assembled and connected with the movable platform 30, the two can be made to have an interference fit by virtue of the designed assembly size relationship, thereby ensuring the connection reliability of the damper 10 with the movable platform 30. Moreover, the interference fit assembly relationship also does not need to additionally rely on other auxiliary fasteners, which can improve the disassembly and assembly efficiency and reduce the connection and use cost of the damper 10.

[0061] Optionally, according to the different components 20 to be damped to which the damper 10 is connected, the damper 10 also needs to have different damping performances. For example, the weights of two components 20 to be damped are respectively a first weight and a second weight, and the first weight is greater than the second weight. Correspondingly, for the heavier component 20 to be damped, the damper 10 needs to more reliably support the component 20 to be damped and prevent the component 20 to be damped from crushing the damper 10. Therefore, when the damper 10 is used for the heavier component 20 to be damped, the damper 10 needs to have stronger rigidity. Specifically, the rigidity can be realized by at least one of increasing the thickness of the damping portion 102 and increasing the hardness of the damping portion 102.

[0062] For example, for a gimbal mechanism and an inertial sensor, it is obvious that the weight of the gimbal mechanism is greater than that of the inertial sensor. Therefore, the damper 10 used for damping the gimbal mechanism can be thicker or harder than the damper 10 used for damping the inertial sensor.

[0063] Here, the thickness of the damping portion 102 refers to the size of the damping portion 102 along the X direction or the Y direction. Figure 1 Of course, in other embodiments, the rigidity of the damper 10 can also be improved by increasing the wall thickness of the thin-wall structure around the through portion 1021 or increasing the size along the Y direction.

[0064] Optionally, the damper 10 in the embodiment of the utility model can be made of an elastic material, for example, a silica gel material or a plastic material. The silica gel material can include silicone rubber and the like. These elastic materials can meet the needs of the reciprocating elastic deformation of the damper 10, and compared with the use of a complex mechanical movement structure, the damper 10 can be formed at one time and is simple and convenient to manufacture.

[0065] Optionally, in the utility model embodiment, in addition to the device or hardware module required for the movement of the movable platform 30, some external loads are also carried on the movable platform 30. In these devices, hardware modules or external loads, part of the devices, hardware modules or loads are sensitive to vibration signals during work, which is easy to form noise signals or misoperation, and thus cannot work normally. Therefore, the components susceptible to the vibration of the movable platform 30 and affecting the normal work of the components can be the vibration-reduced components 20 subjected to the vibration reduction of the shock absorber 10.

[0066] For example, the vibration-reduced component 20 can be an inertial sensor. Through the vibration reduction of the shock absorber 10, the accuracy of the measurement data of the inertial sensor is improved.

[0067] The vibration-reduced component 20 can be a posture adjustable device (such as a gimbal mechanism). Through the vibration reduction of the shock absorber 10, the working stability of the posture adjustable device is improved.

[0068] The vibration-reduced component 20 can be a sensor mounting rack. Through the vibration reduction of the shock absorber 10, the working stability of the sensor is improved.

[0069] The vibration-reduced component 20 can also be an electronic speed controller board. Through the vibration reduction of the shock absorber 10, the interference of vibration on the electronic speed control signal is reduced, and the motor control reliability is ensured.

[0070] Optionally, as shown in Figure 9 , a top view schematic diagram of Figure 2 is shown, as shown in Figure 10 , a sectional view schematic diagram of the B-B position in Figure 9 is shown, for the vibration-reduced component 20, which comprises a first main body part 201 and a first connecting lug 202 extending outward from the first main body part 201, and a first limiting structure 203 is arranged at the end of the first connecting lug 202 away from the first main body part 201. When the first connecting part 101 is connected with the first connecting lug 202, the first limiting structure 203 at the outer end forms an obstacle to the first connecting part 101, which can prevent the shock absorber 10 from falling off from the vibration-reduced component 20 during the vibration reduction of the extension and deformation.

[0071] In addition, similar to the above structure, in order to prevent the shock absorber 10 from falling off from the movable platform 30 during the vibration reduction of the extension and deformation, for the movable platform 30, which comprises a second main body part 301 and a second connecting lug 302 extending outward from the second main body part 301, and a second limiting structure 303 is arranged at the end of the second connecting lug 302 away from the second main body part 301. When the second connecting part 103 is connected with the second connecting lug 302, the second limiting structure 303 at the outer end forms an obstacle to the second connecting part 103.

[0072] Specifically, when the first connecting portion 101 and the second connecting portion 103 are both the snap rings of the foregoing embodiments, the cross sections of the first connecting lug 202 and the second connecting lug 202 can be slightly larger than the cross sections of the corresponding snap rings to achieve an interference fit. The cross sections of the first limiting structure 203 and the second limiting structure 303 are slightly larger than the cross sections of the corresponding snap rings to hinder the connecting portions from falling off the connecting lugs.

[0073] As a specific application embodiment, in the application scenario of a UAV:

[0074] The overall weight of a consumer-grade UAV is increasingly smaller, and the structural stack is increasingly compact. The damping scheme of a traditional IMU (Inertial Measurement Unit, inertial sensor) adopts a damping ball mode, the damping frequency point is high, and the occupied volume is large. For a UAV with very stringent requirements on weight and volume, the previous damping ball scheme does not meet the use requirements of the UAV, and therefore weight reduction and volume reduction are required.

[0075] As shown in the schematic view, Figure 1 In the embodiment of the utility model, the damping configuration is changed to an approximately rhombus shape (the middle hollow area is approximately rhombus, and the material is still plastic), the weight is lighter, the volume is smaller after compression (the Z-direction size is smaller), and the overall structural stack of the UAV is also more friendly.

[0076] The brief principle of this damping configuration is as follows: the spring principle of plastic, which is equivalent to a smaller spring, avoids the transmission of the shaking of the UAV body to the IMU, and affects the measurement results of the IMU.

[0077] For a damper, the lower the vibration frequency point is, the better. The middle hollow structure of the embodiment of the utility model can make the vibration frequency point of the damper lower than that of the non-hollow structure, and the distance from the paddle frequency is farther, thereby avoiding affecting the flight performance. In addition, compared with the non-hollow structure, the height and volume of the middle hollow structure can be smaller.

[0078] Based on the above description, the middle hollow area can also be square, rectangular, circular, or irregular, and the damping frequency point of the approximately rhombus structure is lower. In addition, the damper of the embodiment of the utility model can be used for IMU damping and gimbal damping, but the gimbal has strength requirements in addition to damping requirements. The size of the hollow area can be reduced, or the hardness or thickness of the damping portion 102 can be increased to enhance the strength of the damper 10.

[0079] In addition, as the motion platform or device pursues lightness and miniaturization, the damper of the embodiment of the utility model can have a lower stiffness and a lower damping frequency point due to the foregoing structural design, and can better adapt to lighter and smaller motion platforms or devices.

[0080] The utility model embodiment further provides a to-be-damped assembly, the to-be-damped assembly includes to-be-damped component 20 and the damper 10 as introduced in the foregoing embodiment can provide the damping function for to-be-damped component 20. The damper 10 and to-be-damped component 20 can be respectively manufactured and then assembled to form a set product, and then configured to be applied to various movable platforms 30. Based on the advantages of the damper 10 introduced in the foregoing embodiment, the to-be-damped assembly is also easier to achieve lightweight, small size, and excellent damping performance.

[0081] In addition, as Figure 11 The utility model embodiment further provides a movable platform 30 including the damper 10 introduced in the foregoing embodiment.

[0082] The embodiment takes the movable platform 30 as an aircraft as an example for illustration, and the aircraft can include a power assembly, which can include a propeller and a driving assembly (including but not limited to a motor, a fuel engine, and a hydraulic driving assembly) for example. The driving assembly can be arranged on the main body of the aircraft or a support (such as an arm or a propeller blade protection device) extending from the main body of the aircraft. Optionally, the aircraft can further include a foot stand to provide support for the aircraft. In addition, the movable platform 30 of the embodiment can refer to any device capable of moving. In some embodiments, the movable platform 30 can have a power device itself, which can drive the movable platform 30 to move. In some embodiments, the movable platform 30 needs an external device to drive it to move. The above is only an example for illustration, and the embodiment does not specifically limit how the movable platform 30 moves. The movable platform 30 can be a manned platform device or an unmanned platform device. The movable platform 30 can include at least one of, but is not limited to, an aircraft, a vehicle (such as a logistics vehicle), a ship, a robot (such as an agricultural robot or a sweeping robot), a handheld gimbal, a sports camera, and the like according to product form classification. The movable platform 30 can include at least one of, but is not limited to, a shooting device (such as a aerial unmanned aerial vehicle, a handheld gimbal, a sports camera, and the like), a cleaning device (such as a sweeping robot), a patrol device (such as an industrial unmanned aerial vehicle or a patrol ship), and a work device (such as an agricultural aircraft, an agricultural robot, a logistics unmanned aerial vehicle, or a performance unmanned aerial vehicle) according to function classification.

[0083] As Figure 11The illustration uses a mobile platform 30 as an example of an aircraft. It will be apparent to those skilled in the art that any type of aircraft can be used without restriction; for example, the aircraft can be small or large. The aircraft can be manned or unmanned. Specifically, the aircraft can include rotorcraft, fixed-wing aircraft, or hybrid fixed-wing / rotorcraft, etc. Rotorcraft can be single-rotor, dual-rotor, multi-rotor, etc. Aircraft can include, but are not limited to, manned aircraft, logistics aircraft, aerial photography aircraft, agricultural plant protection aircraft, industry rescue aircraft, or performance aircraft. The above are merely illustrative examples, and the embodiments of this application do not specifically limit the type of aircraft. Aircraft include unmanned aerial vehicles (UAVs) and manned aircraft, etc. Aircraft can be used for one or more tasks such as aerial photography, aerial reconnaissance, geographic mapping, transportation, agricultural operations, performances, environmental monitoring, and security patrols.

[0084] Applying the vibration damper 10 of the aforementioned embodiment to the mobile platform 30 can meet the design trend of miniaturization and lightweighting of the mobile platform 30, and can make the vibration amplitude of the component 20 to be damped carried on the mobile platform 30 smaller and its operation more stable and reliable.

[0085] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0086] The terms "an embodiment," "embodiment," or "one or more embodiments" as used herein mean that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of the present invention. Furthermore, please note that the examples of the phrase "in one embodiment" do not necessarily all refer to the same embodiment.

[0087] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0088] In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word comprising does not exclude the presence of elements or steps other than those listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The application can be implemented by means of both hardware and software, and any combination thereof. In a unitary claim, several devices, apparatuses or means can be listed, comprising means for carrying out a certain task. The use of the term "means" does not limit the scope of the claim to only a device or apparatus. The word "comprise" does not exclude the presence of elements or steps other than those listed in a claim. The word "first", "second", "third", etc. does not imply any order. The use of these terms is to be construed as an indication of particular embodiments.

[0089] Finally, it should be noted that the above-mentioned embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the same. Even though the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced by equivalent technical features, without departing from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A damper characterized by, The damper comprises a first connecting part, a damping part and a second connecting part arranged in sequence along a first direction, the first connecting part is used for connecting with a component to be damped, the second connecting part is used for connecting with a movable platform, and the movable platform is used for bearing the component to be damped. The damping part comprises a through part penetrating through the damping part along a second direction, and the second direction is different from the first direction.

2. The damper of claim 1, wherein The second direction is perpendicular to the first direction.

3. The damper of claim 2, wherein When the damping part is in a static state, a size of the through part along the first direction is the same as or different from a size of the through part along a third direction, and / or a size of the damping part along the first direction is the same as or different from a size of the damping part along the third direction, wherein the third direction is perpendicular to both the first direction and the second direction.

4. The damper of claim 3, wherein When the damping part is in a static state, the size of the through part along the first direction is smaller than the size of the through part along the third direction, and / or the size of the damping part along the first direction is smaller than the size of the damping part along the third direction.

5. The damper of claim 4, wherein A cross section of the through part is an ellipse or a polygon, and / or a cross section of the damping part is an ellipse or a polygon.

6. The damper of claim 5, wherein The polygon comprises a hexagon, a rhombus or a rectangle; the polygon comprises a regular polygon or an irregular polygon; and / or adjacent two sides of the polygon are smoothly connected through a round corner.

7. The damper of claim 1, wherein An included angle between the second direction and the first direction is an acute angle.

8. The damper of claim 1, wherein A cross section of the damping part is the same as a shape of a cross section of the through part.

9. The damper of claim 1, wherein The damping part is provided with at least two through parts.

10. The damper of claim 9, wherein At least two through parts are arranged in sequence along the first direction, and an axis of each through part is parallel to each other; or at least two through parts are arranged around the first direction at four sides of the damping part, and each through part penetrates through each other.

11. The damper of claim 1, wherein The first connecting part is used for detachably connecting with the component to be damped; and / or the second connecting part is used for detachably connecting with the movable platform.

12. The damper of claim 11, wherein The first connecting part is provided with a first clamping ring used for detachably connecting with the component to be damped; and / or the second connecting part is provided with a second clamping ring used for detachably connecting with the movable platform.

13. The damper of claim 12, wherein The first clamping ring can be in interference fit with the component to be damped; and / or the second clamping ring can be in interference fit with the movable platform.

14. The damper of claim 1, wherein The component to be damped is different, and a thickness of the damping part and / or a hardness of the damping part are different; a thickness of the damping part and / or a hardness of the damping part corresponding to the component to be damped of a first weight are greater than a thickness of the damping part and / or a hardness of the damping part corresponding to the component to be damped of a second weight, wherein the first weight is greater than the second weight.

15. The damper of claim 1, wherein A material of the damper is an elastic material.

16. The damper of claim 1, wherein The component to be damped comprises a component which is easily affected by a shaking of the movable platform to affect normal work of the component.

17. The damper of claim 16, wherein The component to be damped comprises an inertial sensor, a posture adjustable device, a sensor mounting rack or an electrically adjustable plate.

18. The damper of claim 1, wherein The component to be damped comprises a first body portion and a first connecting lug extending outwardly from the first body portion, an end of the first connecting lug away from the first body portion is provided with a first limiting structure, the first connecting portion is connected with the first connecting lug and is located between the first limiting structure and the first body portion; and / or the movable platform comprises a second body portion and a second connecting lug extending outwardly from the second body portion, an end of the second connecting lug away from the second body portion is provided with a second limiting structure, the second connecting portion is connected with the second connecting lug and is located between the second limiting structure and the second body portion.

19. An assembly to be damped, characterized in that The assembly to be damped comprises a component to be damped and a damper as claimed in any one of claims 1 to 18, capable of providing the component to be damped with a damping function.

20. A movable platform, characterized by The movable platform comprises a damper as claimed in any one of claims 1 to 18.

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