Moving device

Abstract

The invention discloses a moving device, and relates to the technical field of component movement. The at least one moving assembly is arranged on the base, the moving assembly comprises a piezoelectric driving piece and a support connected to the output end of the piezoelectric driving piece, a first sliding groove and a second sliding groove are formed in the two opposite sides of the support respectively, and the first sliding groove and the second sliding groove are both used for guiding when the support moves; at least one rolling piece is arranged in at least one of the first sliding groove and the second sliding groove, and the piezoelectric driving piece can drive the support to move in the first direction of the base and can enable the rolling piece to roll so as to achieve movement of components on the support; the first direction is consistent with the directions of the first sliding groove and the second sliding groove. According to the moving device, sliding friction force can be replaced by rolling friction force, so that the friction force generated when the support moves relative to the base in the first direction is reduced, noise can be reduced, and the support moves through the piezoelectric driving piece so as to achieve good control precision.

Description

Technical Field

[0001] The present invention relates to the technical field of component movement, and more specifically, to a moving device. Background Art

[0002] In the field of machining and assembly, components need to be moved according to actual situations. Conventional stepper motors need to be equipped with a reduction mechanism for transmission to drive the components to move. This kind of structure has a large noise and low control accuracy.

[0003] In summary, how to reduce the noise during component movement and improve the accuracy of movement control is an urgent problem to be solved by those skilled in the art at present. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a moving device that can reduce the noise during component movement and improve the accuracy of movement control.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] A moving device includes:

[0007] A base;

[0008] At least one moving component provided on the base, the moving component includes a piezoelectric driving member and a bracket connected to the output end of the piezoelectric driving member. First sliding grooves and second sliding grooves are respectively provided on two opposite sides of the bracket, and both the first sliding groove and the second sliding groove are used for guiding when the bracket moves;

[0009] Rolling elements, at least one of the first sliding groove and the second sliding groove is provided with at least one of the rolling elements, and the piezoelectric driving member can drive the bracket to move along a first direction of the base and can make the rolling elements roll, so as to realize the movement of the components on the bracket;

[0010] The first direction is the same as the directions of the first sliding groove and the second sliding groove.

[0011] Preferably, the rolling elements include a first ball, a second ball, and a plurality of third balls located between the first ball and the second ball, and the size of the third balls is smaller than the sizes of the first ball and the second ball.

[0012] Preferably, the rolling elements are provided in the first sliding groove, and a guiding slide bar is provided in the second sliding groove, and the guiding slide bar can be offset relative to the first direction in the second sliding groove.

[0013] Preferably, the first sliding groove includes a plurality of first V-shaped grooves arranged at intervals, and the rolling elements are provided in any one of the first V-shaped grooves. The piezoelectric driving member can press against the rolling elements through the first V-shaped grooves to limit the movement of the bracket along the second direction of the base, and the first direction is perpendicular to the second direction.

[0014] Preferably, the moving assembly further includes a fixing block fixed to the base or the bracket. The fixing block is provided with a second V-shaped groove, and the piezoelectric driving member can press the first V-shaped groove against the second V-shaped groove so as to clamp the rolling elements in the first V-shaped groove and the second V-shaped groove.

[0015] Preferably, the base is provided with a fixing portion, and both sides of the guiding slide bar are fixed to the fixing portion. The corresponding second sliding groove of the bracket is slidably arranged on the guiding slide bar;

[0016] Or, on one side of the bracket away from the second sliding groove and the base, there are fixing portions. The fixing portion on the base is connected to the corresponding second sliding groove of the bracket through the guiding slide bar and one moving assembly, and the fixing portion on the bracket is connected to the corresponding second sliding groove of the bracket of the other moving assembly through the guiding slide bar.

[0017] Preferably, the second sliding groove is an oval hole, the length direction of the oval hole is perpendicular to the first direction, and both ends of the guiding slide bar respectively extend into the oval holes corresponding to the two second sliding grooves.

[0018] Preferably, it further includes a housing. The moving assembly and the base are both arranged in the housing, and a plurality of first heat dissipation holes are provided in the circumferential direction of the housing;

[0019] It further includes a heat sink connected to the base. The heat sink is connected to the side of the base away from the moving assembly, and the heat sink is provided with a plurality of second heat dissipation holes.

[0020] Preferably, there are two moving assemblies, which are respectively a first moving assembly movably connected to the base and a second moving assembly movably connected to the first moving assembly. The second moving assembly, the first moving assembly, and the base are arranged in sequence along the third direction;

[0021] The piezoelectric driving member of the first moving assembly can drive the corresponding first bracket to move along the first direction of the base;

[0022] The piezoelectric driving member of the second moving assembly can drive the corresponding second bracket to move along the second direction of the base, and the first direction, the second direction, and the third direction are perpendicular to each other in pairs;

[0023] For the first bracket and the base corresponding to the first moving component, positioning grooves for positioning the piezoelectric drive member are provided. The positioning grooves are connected to the bosses on the outer periphery of the piezoelectric drive member for positioning. The piezoelectric drive member corresponding to the first bracket is used to drive the second bracket to move relative to the base in the second direction, and the piezoelectric drive member corresponding to the base is used to drive the first bracket to move relative to the base in the first direction.

[0024] Preferably, the piezoelectric drive member includes:

[0025] A sliding piece, the sliding piece is provided in both the first bracket and the second bracket, and the sliding piece is arranged opposite to the first sliding groove;

[0026] A main body and a friction head located at the output end of the main body. The main body in the base can contact the sliding piece in the first bracket through its corresponding friction head, so as to drive the sliding piece through the swing of the friction head to drive the first bracket to move;

[0027] The main body in the first bracket can contact the sliding piece in the second bracket through its corresponding friction head, so as to drive the sliding piece through the swing of the friction head to drive the second bracket to move, so as to realize the movement of the component provided on the second bracket.

[0028] The mobile device provided by the present invention includes a base and at least one moving component provided on the base. The moving component specifically includes a piezoelectric drive member and a bracket connected to the output end of the piezoelectric drive member. Among them, the two opposite sides of the bracket are respectively provided with a first sliding groove and a second sliding groove. Both the first sliding groove and the second sliding groove are used for guiding when the bracket moves. At least one rolling member is provided in the first sliding groove and the second sliding groove. The piezoelectric drive member can drive the bracket to move along the first direction of the base and can make the rolling member roll, so as to realize the movement of the component on the bracket along the first direction. The first direction, the first sliding groove, and the second sliding groove are in the same direction; through the setting of the rolling member, the friction force when the bracket moves relative to the base can be reduced, the noise when the component moves can be reduced, and the piezoelectric drive member combined with the driving mode of the bracket can achieve a high movement control accuracy.

[0029] The beneficial effects of the present invention are as follows: Through the setting of the rolling member located in the first sliding groove and / or the second sliding groove, the rolling friction can be used to replace the sliding friction, so as to reduce the friction force when the bracket moves relative to the base along the first direction, so as to reduce the generation of noise; by driving the movement of the bracket by the piezoelectric drive member, good control accuracy can be ensured, the structure is simple and compact, and it has good applicability and performance. Description of the Drawings

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0031] Figure 1 Schematic structural diagram of the mobile device provided by the present invention;

[0032] Figure 2 Schematic connection diagram of the base, the first bracket and the second bracket provided by the present invention;

[0033] Figure 3 Schematic structural diagram of the base provided by the present invention;

[0034] Figure 4 Front view schematic diagram of the first bracket provided by the present invention;

[0035] Figure 5 For Figure 4 reverse view schematic diagram;

[0036] Figure 6 Schematic installation diagram of the rolling element provided by the present invention;

[0037] Figure 7 Schematic structural diagram of the second bracket provided by the present invention;

[0038] Figure 8 Schematic connection diagram of the base and the first bracket provided by the present invention;

[0039] Figure 9 Schematic structural diagram of the piezoelectric driving element provided by the present invention;

[0040] Figure 10 Schematic structural diagram of the fixing block provided by the present invention;

[0041] Figure 11 Schematic structural diagram of the outer shell provided by the present invention.

[0042] Figures 1 - 11 Among them, the reference numerals include:

[0043] 1 - Base; 2 - First Bracket; 3 - Second Bracket; 4 - First Sliding Groove; 5 - Guide Slide Rod; 6 - Piezoelectric Driving Element; 7 - Fixed Block; 8 - Outer Shell; 9 - Heat Sink; 10 - Second Sliding Groove; 11 - Engaging Groove; 12 - Fixed Portion; 13 - Positioning Groove; 14 - Slide Piece Groove; 15 - Rolling Element; 41 - First V - shaped Groove; 61 - Main Body; 611 - Friction Head; 612 - Boss; 62 - Slide Piece; 71 - Second V - shaped Groove; 81 - First Heat Dissipation Hole; 82 - Square Hole Groove; 91 - Second Heat Dissipation Hole; 151 - First Ball; 152 - Second Ball; 153 - Third Ball. Detailed Embodiment

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0045] The core of the present invention is to provide a mobile device. Through the arrangement of rolling elements in the first sliding groove and / or the second sliding groove of the bracket, rolling friction can be used to replace sliding friction, so as to reduce the friction when the bracket moves relative to the base along the first direction, and thus reduce the generation of noise. By driving the movement of the bracket with a piezoelectric driving element, good control accuracy can be ensured, the structure is simple and compact, and it has good applicability and performance.

[0046] The mobile device provided by the present invention includes a base 1, at least one moving component provided on the base 1, and at least one rolling element 15. Please refer to Figure 1 . The above - mentioned "at least one" means one, two, three or more, and the specific number can be flexibly selected according to actual needs and actual usage.

[0047] The moving component specifically includes a piezoelectric driving element 6 and a bracket connected to the output end of the piezoelectric driving element 6. Here, the bracket can be used to place components. The bracket can be provided with a placement groove or other forms of placement space for placing components. When the bracket moves, the components can move synchronously, that is, in the case of component processing and assembly or other occasions where component movement is required.

[0048] The piezoelectric driving element 6 specifically refers to a device that utilizes the inverse piezoelectric effect of piezoelectric materials to convert electrical energy into mechanical energy or mechanical motion, and can be used to achieve large - stroke translation, and of course, small - stroke translation can also be achieved. The piezoelectric driving element 6 at least has the advantages of high resolution, small volume, and low power consumption, enabling the mobile device to have characteristics such as high control accuracy, small volume, and stepless speed change, and has better applicability.

[0049] On two opposite sides of the bracket, a first sliding groove 4 and a second sliding groove 10 are respectively provided. Both the first sliding groove 4 and the second sliding groove 10 are used for guiding when the bracket moves, that is, for guiding when a component moves on the bracket. The forms of the first sliding groove 4 and the second sliding groove 10 can be the same or different. For example, both sliding grooves are oval grooves, V-shaped grooves, etc.

[0050] If there is one moving component, the first sliding groove 4 and the second sliding groove 10 of the moving component correspond to both sides of the base 1. The base 1 is fixed. When the bracket moves, the first sliding groove 4 and the second sliding groove 10 can move relative to the base 1 to achieve the guiding function. In this case, the bracket can move in one direction, that is, the direction of the first sliding groove 4 and the second sliding groove 10.

[0051] If there are two moving components, the first sliding groove 4 and the second sliding groove 10 of one moving component correspond to both sides of the base 1, and the first sliding groove 4 and the second sliding groove 10 of the other moving component correspond to both sides of the previous moving component. In this case, the component can move in two directions. These two directions can be perpendicular, or form an acute or obtuse angle. The first direction is the direction corresponding to the first sliding groove 4 and the second sliding groove 10 of one moving component, and the other direction is the direction corresponding to the first sliding groove 4 and the second sliding groove 10 of the other moving component.

[0052] If there are three moving components, the first sliding groove 4 and the second sliding groove 10 of the first moving component correspond to both sides of the base 1, the first sliding groove 4 and the second sliding groove 10 of the second moving component correspond to both sides of the first moving component, and the first sliding groove 4 and the second sliding groove 10 of the third moving component correspond to both sides of the second moving component. In this case, the component can move in three directions. These three directions can be perpendicular to each other in pairs or form a certain angle.

[0053] At least one of the first sliding groove 4 and the second sliding groove 10 is provided with a rolling member 15. The connections between the rolling member 15 and the first sliding groove 4, and between the rolling member 15 and the second sliding groove 10 are both rolling connections, that is, the rolling member 15 rolls in the first sliding groove 4 or the second sliding groove 10. This rolling method has a smaller frictional force compared to sliding, and can more smoothly realize the movement of the component on the bracket. That is, it can reduce the noise when the component moves. Combined with the piezoelectric driving member 6 that converts electrical energy into mechanical energy and relatively generates less noise, the noise when the component moves can be reduced through the above method, which can improve the user experience and enhance the applicability.

[0054] In addition, the piezoelectric driving member 6 has no electromagnetic interference, its power consumption and heat generation are also low, its output characteristics are better, its applicable range is wider and its performance is better, and it is simple and reliable to use.

[0055] In a specific embodiment, the piezoelectric driving member 6 is located inside the base 1. Through the piezoelectric driving member 6, the bracket can be driven to move in the first direction of the base 1 and the rolling member 15 can be made to roll, so as to realize the movement of the components on the bracket. Here, the first direction is specifically consistent with the directions of the first sliding groove 4 and the second sliding groove 10. Further, the first direction is consistent with the sliding direction of the bracket along the first sliding groove 4 and the second sliding groove 10; in the case where the sliding groove is a long strip groove, the first direction can also be said to be consistent with the length direction of the long strip groove; in the case where the sliding groove is a circular groove hole, the first direction can be said to be consistent with the axis of the groove hole; in the case where the sliding groove is a groove hole of other shapes, the first direction is defined based on the sliding direction of the bracket relative to this groove hole. Through the rolling of the rolling member 15 in the first sliding groove 4 or the second sliding groove 10, the low-noise and low-resistance movement of the components on the bracket can be realized, and the applicability is stronger.

[0056] In this embodiment, at least one rolling member 15 is provided in the first sliding groove 4, or at least one rolling member 15 is provided in both the first sliding groove 4 and the second sliding groove 10, or at least one rolling member 15 is provided in the second sliding groove 10, as long as the rolling member 15 can roll forward or backward in the sliding groove when the bracket moves. The specific form of the setting of the rolling member 15 can be selected according to the actual situation.

[0057] In this embodiment, the rolling member 15 is preferably a spherical object, which can be made of a metal material or other materials with a relatively small coefficient of friction, as long as the noise during the movement of the components can be reduced by rolling.

[0058] The above-mentioned moving device can realize the reliable movement of components with high control accuracy and low noise, has low power consumption and heat generation, and has good applicability and practicality.

[0059] On the basis of the above embodiments, please refer to Figure 4 、 Figure 6 , the rolling member 15 includes a first ball 151, a second ball 152, and a plurality of third balls 153 located between the first ball 151 and the second ball 152. The size of the third balls 153 is smaller than the sizes of the first ball 151 and the second ball 152. The plurality of third balls 153 can be one, two or more in number, etc.

[0060] In this embodiment, the first ball 151, the second ball 152, and the third balls 153 are all placed in the first sliding groove 4 or the second sliding groove 10. When the bracket needs to move, by restricting the size of the third balls 153 to be smaller than the sizes of the first ball 151 and the second ball 152, the first ball 151, the second ball 152, and the third balls 153 roll in the same direction in the sliding groove, so as to reduce the friction and the generated noise, and can improve the user experience.

[0061] In one embodiment, the rolling elements 15 include a first ball 151, a second ball 152, and a third ball 153. The third ball 153 is located between the first ball 151 and the second ball 152, and both the first ball 151 and the second ball 152 are in contact with the third ball 153. The third ball 153 is set to be smaller so as to achieve the effect that the first ball 151 and the second ball 152 rotate in the same direction, enabling the bracket to translate reliably and ensuring the movement effect of the components.

[0062] In the actual application process, the effect of the third ball 153 is mainly to ensure that the first ball 151 and the second ball 152 can rotate in the same direction. Therefore, the method of increasing the number of the third balls 153 and controlling the size of the third balls 153 to achieve this effect is also included in the protection scope of this application.

[0063] In a specific embodiment, the sizes of the first ball 151 and the second ball 152 are equal, and the sizes of both the first ball 151 and the second ball 152 are larger than the size of the third ball 153. By setting the sizes of the first ball 151 and the second ball 152 to be equal, the reliability of the rolling of the rolling elements 15 can be ensured, the smoothness and reliability of the movement of the bracket can be guaranteed, the accuracy of the movement of the bracket can be ensured, and the generation of noise can be effectively reduced. Wherein, when the first ball 151, the second ball 152, and the third ball 153 are all spherical, the size in this embodiment is the diameter.

[0064] In another specific embodiment, the sizes of the first ball 151 and the second ball 152 are not equal, and the sizes of both the first ball 151 and the second ball 152 are larger than the size of the third ball 153. In this case, there may be a certain machining deviation between the sizes of the first ball 151 and the second ball 152. This deviation can be determined in combination with the actual on-site simulation situation or theoretical situation, as long as it can meet the effect that the first ball 151 and the second ball 152 roll in the same direction. It can reduce the precision requirements for the machining of the components while also meeting the effect of reliable rolling, and can also reduce the generation of noise. Or, there may be a certain size deviation between the first ball 151 and the second ball 152. This size deviation is not a machining deviation but a manually set value. Through the design of one large and one small, the rolling elements 15 can have better fluidity during rolling, ensuring that the rolling elements 15 can roll reliably in the sliding groove to ensure the smoothness of the movement of the bracket. Wherein, when the first ball 151, the second ball 152, and the third ball 153 are all spherical, the size in this embodiment is the diameter.

[0065] Based on any of the above embodiments, please refer to Figure 1 、 Figure 2, a rolling member 15 is provided in the first sliding groove 4, and a guiding slide bar 5 is provided in the second sliding groove 10. The guiding slide bar 5 can be offset relative to the first direction within the second sliding groove 10.

[0066] In this embodiment, both the rolling member 15 in the first sliding groove 4 and the guiding slide bar 5 in the second sliding groove 10 are used for guiding when the components on the bracket move. The guiding slide bar 5 is slidably connected to the second sliding groove 10, and the rolling member 15 is rollably connected to the first sliding groove 4.

[0067] In the case where only one moving component is provided, the guiding slide bar 5 can be fixed to the base 1, and when the bracket moves, it can provide a guiding function through the sliding of the second sliding groove 10 relative to the guiding slide bar 5.

[0068] In the case where only two moving components are provided, one of the guiding slide bars 5 can be fixed to the base 1, and when the bracket of one of the moving components moves, it can provide a guiding function through the cooperation of the guiding slide bar 5 and the second sliding groove 10; the other guiding slide bar 5 is fixed to one of the moving components, and when the bracket of the other moving component moves, it can provide a guiding function through the cooperation of the guiding slide bar 5 and the second sliding groove 10.

[0069] In this embodiment, the guiding slide bar 5 can be offset relative to the first direction within the second sliding groove 10. This offset is to enable the first sliding groove 4 to have a certain offset space, so as to ensure the smooth rolling of the rolling member 15, the reliability of the rolling member 15 located in the first sliding groove 4, facilitate the convenient assembly of the rolling member 15 and the guiding slide bar 5, prevent the pre-pressure of the piezoelectric driving member 6 from being applied to the corresponding side of the second sliding groove 10 due to processing and assembly errors, avoid increasing sliding friction, and ensure the effect of reducing noise.

[0070] Among them, the positioning and installation of the rolling member 15 and the first sliding groove 4 are precise positioning, while the positioning and installation of the guiding slide bar 5 and the second sliding groove 10 are rough positioning. The rough positioning and precise positioning here are relative.

[0071] In this embodiment, in order to enable the guiding slide bar 5 to be offset relative to the first direction within the second sliding groove 10, the second sliding groove 10 can be set in the shape of a waist-shaped hole, a long strip hole, an oval hole, etc.

[0072] On the basis of any of the above embodiments, please refer to Figure 4 , the first sliding groove 4 includes a plurality of first V-shaped grooves 41 arranged at intervals. A rolling member 15 is provided in any first V-shaped groove 41. The piezoelectric driving member 6 can press against the rolling member 15 through the first V-shaped groove 41 to limit the movement of the bracket along the second direction of the base 1. The first direction is perpendicular to the second direction.

[0073] In this embodiment, asFigure 4 , Figure 6 As shown, the first sliding groove 4 includes a plurality of first V-shaped grooves 41 arranged at intervals. The length of the first V-shaped groove 41 corresponds to the distance that the bracket can move in the first direction. By arranging the first V-shaped grooves 41 at intervals, the rolling elements 15 can be dispersed, so as to ensure the overall stability when the bracket moves and ensure the reliable and stable movement of the components. The specific interval setting is as follows Figure 4 Specifically, it means that the two first V-shaped grooves 41 are not connected. Specifically, the structure between the two first V-shaped grooves 41 can be, but is not limited to, a cylindrical bar structure.

[0074] In this embodiment, the second sliding groove 10 can provide a certain offset of the guiding slide bar 5 relative to the first direction, so that under the action of the piezoelectric driving member 6, the first V-shaped groove 41 can be pressed against the second V-shaped groove 71, that is, the rolling element 15 can be clamped, ensuring the reliable rolling of the rolling element 15 in the groove formed by the enclosure of the first V-shaped groove 41 and the second V-shaped groove 71, and ensuring the accuracy of the movement of the components on the bracket.

[0075] In a specific embodiment, the angles of both the first V-shaped groove 41 and the second V-shaped groove 71 are 90°. Through the settings of the first V-shaped groove 41 and the second V-shaped groove 71, the rolling element 15 can be reliably clamped in the groove, ensuring the accuracy of the movement of the bracket along the first direction of the base 1 and avoiding offsets in other directions. Here, the other direction is the second direction perpendicular to the first direction.

[0076] In this embodiment, the sizes of the first V-shaped groove 41 and the second V-shaped groove 71 are not specifically limited, and the specific sizes can be flexibly designed according to the actual situation.

[0077] Based on any of the above embodiments, please refer to Figure 1 , Figure 2 , Figure 10 , the moving assembly further includes a fixing block 7 fixed to the base 1 or fixed to the bracket. The fixing block 7 is provided with a second V-shaped groove 71. The moving assembly can press the first V-shaped groove 41 against the second V-shaped groove 71, so as to clamp the rolling element 15 in the first V-shaped groove 41 and the second V-shaped groove 71.

[0078] The fixing block 7 is the component that can set the second V-shaped groove 71. This component can be fixed to the base 1, so that the bracket of the moving assembly can move along the first direction of the base 1 to realize the movement of the components; or the fixing block 7 is fixed to the bracket, corresponding to meeting two moving assemblies. The first moving assembly corresponds to the fixing block 7 fixed on the base 1, and the second moving assembly corresponds to the fixing block 7 fixed on the bracket of the first moving assembly. In this case, the components can realize movement in two different directions.

[0079] In this embodiment, the connections between the fixing block 7 and the base 1, and between the fixing block 7 and the bracket are both detachable, which can be achieved by components such as fastening screws. Through the detachable connection method, it is convenient for operations such as the assembly, disassembly, and maintenance of the entire mobile device.

[0080] In this embodiment, positioning protrusions can also be provided on the fixing block 7. The positioning protrusions are used for positioning the connection between the fixing block 7 and the base 1 or the bracket, which can enable the fixing block 7 to be quickly and accurately installed in place, improving the efficiency and accuracy of assembly.

[0081] Based on any of the above embodiments, please refer to Figure 2 , Figure 8 , the base 1 is provided with a fixing portion 12. Both sides of the guiding slide bar 5 are fixed to the fixing portion 12, and the corresponding second sliding groove 10 of the bracket can be slidably arranged on the guiding slide bar 5. The second sliding groove 10 is a groove provided on the bracket. By fixing the guiding slide bar 5 to the fixing portion 12 on the base 1, a reliable guiding effect can be provided when the second sliding groove 10 of the bracket slides along the guiding slide bar 5. Here, the guiding slide bar 5 being fixed to the fixing portion 12 specifically refers to a detachable connection form. Specifically, both ends of the guiding slide bar 5 are respectively connected to the corresponding fixing holes 121 of the two fixing portions 12. Please refer to Figure 3 . In this case, the bracket corresponding to a moving component can move along the first direction of the base 1, so as to enable the movement of the component in one direction.

[0082] Based on any of the above embodiments, please refer to Figure 2 , Figure 8 , on the side of the bracket away from the second sliding groove 10 and the base 1, fixing portions 12 are provided. The fixing portion 12 on the base 1 is connected to the second sliding groove 10 of the bracket corresponding to a moving component through the guiding slide bar 5, and the fixing portion 12 on the bracket is connected to the second sliding groove 10 of the bracket corresponding to another moving component through the guiding slide bar 5.

[0083] In this embodiment, taking two moving components as an example, the fixing portion 12 provided on the base 1 is used for fixing the guiding slide bar 5 corresponding to the bracket of one moving component; and the fixing portion 12 provided on the side of the bracket of one moving component away from the second sliding groove 10 is used for fixing the guiding slide bar 5 corresponding to the other moving component.

[0084] If the brackets corresponding to two moving components are the first bracket 2 and the second bracket 3 respectively, then a second sliding groove 10 is provided on one side of the first bracket 2, and a fixing portion 12 is provided on the other side. A second sliding groove 10 is provided on the side of the second bracket 3 close to the first bracket 2. Correspondingly, the second sliding groove 10 of the first bracket 2 is connected to the fixing portion 12 on the base 1 through a guiding slide bar 5, and the second sliding groove 10 of the second bracket 3 is connected to the fixing portion 12 on the first bracket 2 through a guiding slide bar 5. Through the above, precise and effective movement of the components in two directions can be achieved through the first bracket 2 and the second bracket 3.

[0085] Based on any of the above embodiments, please refer to Figure 4 , the second sliding groove 10 is an oval hole, and the length direction of the oval hole is perpendicular to the first direction. Both ends of the guiding slide bar 5 extend into the oval holes corresponding to the two second sliding grooves 10 respectively.

[0086] In this embodiment, on the premise that the second sliding groove 10 is an oval hole, the direction of the second sliding groove 10, that is, the sliding direction of the guiding slide bar 5 relative to the oval hole, can also be said to be the length direction of the guiding slide bar 5.

[0087] Among them, the second sliding groove 10 is an oval hole, and the direction defined by the first sliding groove 4 and the second sliding groove 10 is the first direction. The length direction of the oval hole is perpendicular to the first direction. Here, the length direction is based on the length direction of the major axis in the case defined by the major axis and the minor axis of the oval hole.

[0088] By setting the first sliding groove 4 as a V-shaped groove and providing an oval hole in the second sliding groove 10, the rotational freedom of the bracket of the moving component can be restricted, so that the bracket of the moving component can only move in the direction defined by the first sliding groove 4 and the second sliding groove 10, ensuring the precision and effectiveness of the movement route of the components on the bracket.

[0089] Setting the hole position cooperating with the guiding slide bar 5 as an oval hole, and the length direction of the oval hole being perpendicular to the first direction, can prevent the piezoelectric pre-pressure from being applied to one side of the guiding slide bar 5 due to machining and assembly errors, avoid increasing sliding friction, and further reduce the noise generated when the component moves on the basis of setting the rolling member 15.

[0090] Based on any of the above embodiments, please refer to Figure 11 , the moving component and the base 1 are both arranged in the housing 8, and a plurality of first heat dissipation holes 81 are provided in the circumferential direction of the housing 8. Here, the housing 8 can specifically be a protective housing 8, which can play a protective role. By opening the first heat dissipation holes 81, a small amount of heat generated by the moving component can be dissipated in time, ensuring the reliable operation effect of the moving component.

[0091] For the connection between the base 1 and the housing 8, the engaging groove 11 on the base 1 and the square hole groove 82 on the housing 8 can be engaged for positioning, and fixation is achieved through screw-like fasteners. Specifically, after the moving component is connected to the base 1, it can be placed inside the housing 8 for connection.

[0092] It further includes a heat sink 9 connected to the base 1. The heat sink 9 is connected to the side of the base 1 away from the moving component, and the heat sink 9 is provided with a plurality of second heat dissipation holes 91. The base 1 and the heat sink 9 are connected through screw-like fasteners, so as to ensure the heat dissipation effect of the side of the base 1 away from the moving component through the setting of the second heat dissipation holes 91 and ensure effective cooling.

[0093] There are no restrictions on the specific shapes and sizes of the first heat dissipation holes 81 and the second heat dissipation holes 91, and they can be designed to meet the heat dissipation requirements.

[0094] Based on any of the above embodiments, please refer to Figure 1 、 Figure 2 , there are two moving components, which are respectively a first moving component movably connected to the base 1 and a second moving component movably connected to the first moving component. The second moving component, the first moving component, and the base 1 are arranged in sequence along the third direction. Here, the first moving component and the second moving component can respectively realize the movement of the component in two directions. Specifically, the component is arranged on the second moving component. When the second moving component moves relative to the first moving component, it can realize the movement in one direction. When the first moving component moves relative to the base 1, it can realize the movement in one direction.

[0095] The piezoelectric driving member 6 of the first moving component can drive its corresponding first bracket 2 to move along the first direction of the base 1; the piezoelectric driving member 6 of the second moving component can drive its corresponding second bracket 3 to move along the second direction of the base 1. The first direction, the second direction, and the third direction are perpendicular to each other in pairs.

[0096] Both the first bracket 2 corresponding to the first moving component and the base 1 are provided with positioning grooves 13 for positioning the piezoelectric driving member 6. The positioning grooves 13 are connected to the convex platforms 612 on the outer periphery of the piezoelectric driving member 6 for positioning, and then bonded together with glue or the like after positioning to ensure the reliable installation of the piezoelectric driving member 6 in the first bracket 2 and the base 1 and ensure the reliability of the driving bracket movement operation.

[0097] The piezoelectric driving member 6 corresponding to the first bracket 2 is used to drive the second bracket 3 so that it moves in the second direction relative to the base 1, and the piezoelectric driving member 6 corresponding to the base 1 is used to drive the first bracket 2 so that it moves in the first direction relative to the base 1.

[0098] Based on any of the above embodiments, please refer to Figure 1 、 Figure 5 、Figure 7 , Figure 9 , the piezoelectric driving member 6 includes: a sliding piece 62. The sliding piece 62 is provided in both the first bracket 2 and the second bracket 3, and the sliding piece 62 is arranged opposite to the first sliding groove 4. This opposite arrangement can, when the main body 61 is operating, while pushing the sliding piece 62 to move through the friction head 611, apply a certain pre-pressure to the first sliding groove 4, ensure the reliability of the rolling member 15 rolling in the first sliding groove 4, and limit the offset of the rolling member 15 to ensure the accuracy of movement control.

[0099] Please refer to Figure 7 , Figure 8 , Figure 9 , the main body 61 in the base 1 can contact the sliding piece 62 in the first bracket 2 through its corresponding friction head 611, so as to drive the sliding piece 62 to drive the first bracket 2 to move through the swing of the friction head 611.

[0100] Please refer to Figure 1 , Figure 2 , the main body 61 in the first bracket 2 can contact the sliding piece 62 in the second bracket 3 through its corresponding friction head 611, so as to drive the sliding piece 62 to drive the second bracket 3 to move through the swing of the friction head 611, so as to realize the movement of the components arranged on the second bracket 3.

[0101] The sliding piece 62 can specifically be in the form of a sliding piece 62 made of metal, polymer material, ceramic, etc., or other materials, and can be specifically selected according to actual use requirements.

[0102] For the installation of the sliding piece 62, sliding piece grooves 14 for the sliding piece 62 are provided in both the first bracket 2 and the second bracket 3. The sliding piece 62 is installed in the sliding piece groove 14, and then fixed by glue or other forms to ensure the reliable installation of the sliding piece 62, so that when the sliding piece 62 moves, it can reliably drive the movement of the first bracket 2 or the second bracket 3, that is, the reliable movement effect of the components can be realized.

[0103] An elastic mechanism is provided in the main body 61, which can realize the swing of the friction head 611 under piezoelectric action. When the friction head 611 swings, it can contact the sliding piece 62 to push the sliding piece 62 to move, that is, realize the movement of the bracket, realize the linear displacement of the components on the bracket, so as to reduce the noise when the components move, improve the movement control accuracy, and reduce the heat generation through the use of the piezoelectric driving member 6.

[0104] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same and similar parts among the embodiments can be referred to each other.

[0105] The above has introduced in detail a mobile device provided by the present invention. Specific examples are used herein to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A mobile device, characterized in that: include: Base (1); At least one moving component is arranged on the base (1), the moving component comprises a piezoelectric driving component (6) and a bracket connected to the output end of the piezoelectric driving component (6), the bracket is provided with a first sliding groove (4) and a second sliding groove (10) on two opposite sides, the first sliding groove (4) and the second sliding groove (10) are both used for guiding the bracket when it moves; A rolling member (15), wherein at least one of the first sliding groove (4) and the second sliding groove (10) is provided with at least one rolling member (15), and the piezoelectric drive member (6) is capable of driving the bracket to move along the first direction of the base (1) and is capable of causing the rolling member (15) to roll, so as to realize movement of a component on the bracket; The first direction is consistent with the directions of the first sliding groove (4) and the second sliding groove (10).

2. The mobile device according to claim 1, characterized in that The rolling element (15) comprises a first rolling ball (151), a second rolling ball (152), and a plurality of third rolling balls (153) located between the first rolling ball (151) and the second rolling ball (152), wherein the size of the third rolling balls (153) is smaller than the size of the first rolling balls (151) and the second rolling balls (152).

3. The mobile device according to claim 1, characterized in that The rolling element (15) is arranged in the first sliding groove (4), and the guide sliding rod (5) is arranged in the second sliding groove (10). The guide sliding rod (5) can be offset relative to the first direction in the second sliding groove (10).

4. The mobile device according to claim 3, characterized in that: The first sliding groove (4) comprises a plurality of first V-shaped grooves (41) arranged at intervals, and the rolling element (15) is provided in any of the first V-shaped grooves (41). The piezoelectric drive element (6) can be pressed against the rolling element (15) through the first V-shaped groove (41) to limit the movement of the bracket along a second direction of the base (1), the first direction being perpendicular to the second direction.

5. The mobile device according to claim 4, characterized in that: The moving assembly further comprises a fixed block (7) fixed to the base (1) or to the bracket, the fixed block (7) being provided with a second V-shaped groove (71), and the piezoelectric drive element (6) being capable of pressing the first V-shaped groove (41) against the second V-shaped groove (71) so as to clamp the rolling element (15) in the first V-shaped groove (41) and the second V-shaped groove (71).

6. The mobile device according to claim 5, characterized in that: The base (1) is provided with a fixing portion (12), two sides of the guide slide bar (5) are fixed to the fixing portion (12), and the second slide groove (10) corresponding to the bracket can be slidably arranged on the guide slide bar (5); Alternatively, a fixing portion (12) is provided on a side of the bracket away from the second sliding groove (10) and the base (1); the fixing portion (12) on the base (1) is connected to the second sliding groove (10) of the bracket corresponding to one of the moving components via the guide slide bar (5); and the fixing portion (12) on the bracket is connected to the second sliding groove (10) on the bracket corresponding to another of the moving components via the guide slide bar (5).

7. The mobile device according to claim 6, characterized in that: The second sliding groove (10) is an elliptical hole, the length direction of the elliptical hole is perpendicular to the first direction, and the two ends of the guide slide bar (5) extend into the elliptical holes corresponding to the two second sliding grooves (10) respectively.

8. The mobile device according to claim 1, characterized in that: It also comprises a housing (8), wherein the moving assembly and the base (1) are both arranged in the housing (8), and a plurality of first heat dissipation holes (81) are arranged in the circumference of the housing (8); It also comprises a heat sink (9) connected to the base (1), the heat sink (9) being connected to a side of the base (1) away from the moving component, and the heat sink (9) being provided with a plurality of second heat dissipation holes (91).

9. The mobile device according to any one of claims 1 to 8, characterized in that: The movable assembly is provided with two components, namely a first movable assembly movably connected to the base (1) and a second movable assembly movably connected to the first movable assembly, wherein the second movable assembly, the first movable assembly and the base (1) are arranged in sequence along a third direction; The piezoelectric driving component (6) of the first moving assembly is capable of driving the corresponding first bracket (2) to move along the first direction of the base (1); The piezoelectric drive component (6) of the second moving assembly is capable of driving its corresponding second bracket (3) to move along a second direction of the base (1), and the first direction, the second direction, and the third direction are perpendicular to each other; The first bracket (2) and the base (1) corresponding to the first moving component are both provided with a positioning groove (13) for positioning the piezoelectric driver (6); the positioning groove (13) and the boss (612) on the periphery of the piezoelectric driver (6) are connected for positioning; the piezoelectric driver (6) corresponding to the first bracket (2) is used to drive the second bracket (3) to move relative to the base (1) in the second direction; and the piezoelectric driver (6) corresponding to the base (1) is used to drive the first bracket (2) to move relative to the base (1) in the first direction.

10. The mobile device according to claim 9, characterized in that: The piezoelectric driving element (6) comprises: a sliding plate (62), wherein the first bracket (2) and the second bracket (3) are both provided with the sliding plate (62), and the sliding plate (62) is arranged opposite to the first sliding groove (4); a main body (61), and a friction head (611) located at an output end of the main body (61), wherein the main body (61) in the base (1) can contact the sliding plate (62) in the first bracket (2) through its corresponding friction head (611), so that the sliding plate (62) can be driven to move by the friction head (611) through swinging, thereby driving the first bracket (2) to move; The main body (61) in the first bracket (2) can contact the sliding plate (62) in the second bracket (3) through its corresponding friction head (611), so that the sliding plate (62) can be driven by the friction head (611) to swing and drive the second bracket (3) to move, so as to realize the movement of the component arranged on the second bracket (3).

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