CN113359298B

CN113359298B - Hydraulic pressure pivot subassembly and intelligent glasses

Info

Publication number: CN113359298B
Application number: CN202110680413.9A
Authority: CN
Inventors: 张岩
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2022-06-03
Anticipated expiration: 2041-06-18
Also published as: CN113359298A

Abstract

The invention discloses a hydraulic rotating shaft assembly and intelligent glasses. The hydraulic pressure pivot subassembly includes: female axle, son axle and axle core. The shaft core is fixedly connected with the main shaft, the sub-shaft is rotatably connected with the main shaft, and at least partial surfaces of the main shaft and the sub-shaft respectively form the outer surface of the hydraulic rotating shaft assembly; the female shaft comprises a female shaft groove with a first circumferential opening, the shaft core comprises a shaft core groove with a second circumferential opening, the female shaft groove is communicated with the shaft core groove in the radial direction to form a sealed hydraulic cavity, and the hydraulic cavity is filled with heat-conducting liquid; the sub-shaft comprises a sub-shaft baffle arm sealed at the first circumferential opening and a bearing bush sealed at the second circumferential opening; when the son shaft rotates, the volume of the shaft core groove and the volume of the mother shaft groove have opposite trend. In this hydraulic pressure pivot subassembly, the hydraulic pressure chamber holds heat-conducting liquid, can improve the heat conductivility of hydraulic pressure pivot subassembly. The shape of the hydraulic cavity can be changed, and the heat-conducting liquid can flow between the female shaft groove and the shaft core groove, so that the basic rotating function of the hydraulic rotating shaft assembly can not be influenced.

Description

Hydraulic pressure pivot subassembly and intelligent glasses

Technical Field

The invention relates to the technical field of wearable equipment, in particular to a hydraulic rotating shaft assembly and intelligent glasses.

Background

Along with the improvement of the performance of the AR glasses, the power consumption of the chip on the main board is gradually increased, the heat productivity of hardware in the wearing and running process is increased, the heat dissipation problem caused by the fact is more and more severe, and the popularization and the application of the AR glasses are greatly limited.

For AR glasses, usually the mainboard and the battery are arranged on two mirror legs respectively, because mirror leg effective heat dissipation area is little, only lean on the mirror leg to be difficult to go out the heat dissipation that hardware produced on the mainboard, consequently try to conduct some heat with the mirror leg to the picture frame through the pivot between picture frame and the mirror leg to carry out supplementary heat dissipation through the picture frame. However, the conventional hinge has a low heat-conducting property, and it is difficult to achieve heat conduction between the temples and the frame.

Therefore, how to improve the heat conductivity of the rotating shaft is a technical problem that needs to be solved by those skilled in the art.

Disclosure of Invention

Accordingly, the present invention is directed to a hydraulic spindle assembly with good thermal conductivity. Another object of the present invention is to provide smart glasses comprising the above hydraulic rotating shaft assembly, wherein the hydraulic rotating shaft assembly has good heat conductivity.

In order to achieve the purpose, the invention provides the following technical scheme:

a hydraulic spindle assembly comprising: the main shaft, the sub shaft and the shaft core; the shaft core is fixedly connected with the female shaft, the sub-shaft is rotatably connected with the female shaft, and at least partial surfaces of the female shaft and the sub-shaft respectively form the outer surface of the hydraulic rotating shaft assembly; the female shaft comprises a female shaft groove with a first circumferential opening, the shaft core comprises a shaft core groove with a second circumferential opening, the female shaft groove is in radial communication with the shaft core groove to form a sealed hydraulic cavity, and the hydraulic cavity is filled with heat-conducting liquid; the sub-shaft comprises a sub-shaft baffle arm sealed at the first circumferential opening and a bearing bush sealed at the second circumferential opening; when the sub-shaft rotates, the volume of the shaft core groove and the volume of the main shaft groove have opposite changing trends.

Preferably, one of the main shaft groove and the sub shaft blocking arm is provided with at least two accommodating channels extending along the circumferential direction, and the other one is provided with an inserting piece which can correspondingly extend into each accommodating channel in a circumferential moving manner.

Preferably, the female shaft groove is provided with at least two female shaft fins which are sequentially arranged along the axial direction, and a gap between every two adjacent female shaft fins forms the accommodating channel; at least two sub-shaft fins which are sequentially arranged along the axial direction are arranged on the sub-shaft and used as the inserting pieces.

Preferably, the insert and the receiving channel into which it correspondingly extends have a slight clearance in the axial direction.

Preferably, the female shaft is a cylindrical structure which penetrates along the axial direction; the shaft core is inserted into the inner cavity of the female shaft, a sliding hole penetrates through the peripheral wall of the female shaft along the radial direction, and the sub-shaft extends into the inner cavity through the sliding hole.

Preferably, the female shaft groove is provided on an inner peripheral surface of the female shaft, the shaft core groove is provided on an outer peripheral surface of the shaft core, and a first radial opening of the female shaft groove on a radially inner side and a second radial opening of the shaft core groove on a radially outer side have a portion that overlaps.

Preferably, the first circumferential opening is in abutting communication with the first radial opening and the second circumferential opening is in abutting communication with the second radial opening.

Preferably, the sub-shaft comprises a sub-shaft connecting piece, and the sub-shaft connecting piece extends into the inner cavity from the slide hole; the sub-shaft blocking arm and the bearing bush extend towards two circumferential directions from one end, extending into the inner cavity, of the sub-shaft connecting piece respectively.

Preferably, an axial end face of the female shaft is provided with a notch, the shaft core comprises a shaft core main body extending into the inner cavity and a shaft core protrusion fixed on the outer peripheral surface of the shaft core main body, the shaft core protrusion is axially inserted into the notch, and the notch circumferentially limits the shaft core protrusion.

The utility model provides an intelligent glasses, includes picture frame and mirror leg, still includes as above hydraulic pressure pivot subassembly, the son axle one of the mother axle connect in the picture frame, another connect in the mirror leg, be equipped with the picture frame heat pipe in the picture frame, be equipped with the mirror leg heat pipe in the mirror leg, the picture frame heat pipe with mirror leg heat pipe contact respectively connect in hydraulic pressure pivot subassembly.

The invention provides a hydraulic spindle assembly comprising: the main shaft, the sub shaft and the shaft core; the shaft core is fixedly connected with the main shaft, the sub-shaft is rotatably connected with the main shaft, and at least partial surfaces of the main shaft and the sub-shaft respectively form the outer surface of the hydraulic rotating shaft assembly; the female shaft comprises a female shaft groove with a first circumferential opening, the shaft core comprises a shaft core groove with a second circumferential opening, the female shaft groove is communicated with the shaft core groove in the radial direction to form a sealed hydraulic cavity, and the hydraulic cavity is filled with heat-conducting liquid; the sub-shaft comprises a sub-shaft baffle arm sealed at the first circumferential opening and a bearing bush sealed at the second circumferential opening; when the sub-shaft rotates, the volume of the shaft core groove and the volume of the main shaft groove have opposite trend.

When the sub-shaft rotates, the volume of the shaft core groove and the volume of the main shaft groove have opposite trend. Specifically, when the sub-shaft rotates forwards, the sub-shaft blocking arm gradually extends into the main shaft groove along the circumferential direction, meanwhile, the bearing bush gradually retreats from the shaft core groove along the circumferential direction, the main shaft groove becomes small, the shaft core groove becomes large, and the heat-conducting liquid is squeezed into the shaft core groove from the main shaft groove by the sub-shaft blocking arm; the auxiliary shaft rotates reversely, the auxiliary shaft baffle arm gradually withdraws from the main shaft groove along the circumferential direction, the bearing bush gradually stretches into the shaft core groove along the circumferential direction, the main shaft groove becomes large, the shaft core groove becomes small, and the heat-conducting liquid is squeezed into the main shaft groove from the shaft core groove by the bearing bush.

In this hydraulic pressure pivot subassembly, axle core groove and female shaft groove intercommunication form sealed hydraulic pressure chamber, and it has heat-conducting liquid to hold therein, can improve the heat conductivility of hydraulic pressure pivot subassembly. When installing in intelligent glasses, sub-axle and mother's axle are connected respectively in mirror leg and picture frame, and the mirror leg can be through the better hydraulic pressure pivot subassembly of thermal conductivity to the picture frame heat conduction for the picture frame can be used for the heat dissipation. In addition, when the sub-shaft rotates relative to the main shaft, the volume of the shaft core groove and the volume of the main shaft groove can be changed, the shape of the hydraulic cavity can be changed, the heat-conducting liquid can flow between the main shaft groove and the shaft core groove, and the basic rotating function of the hydraulic rotating shaft assembly cannot be influenced.

According to the intelligent glasses comprising the hydraulic rotating shaft assembly, the heat conducting capacity of the hydraulic rotating shaft assembly is good, and the glasses frame can be used for assisting the heat dissipation of the glasses legs.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is an external view of an embodiment of a hydraulic spindle assembly according to the present invention in an initial state;

FIG. 2 is an external view of a hydraulic spindle assembly according to an embodiment of the present invention after the spindle has rotated a maximum angle;

FIG. 3 is a schematic diagram of a female shaft according to a first embodiment of the hydraulic spindle assembly of the present invention;

FIG. 4 is a structural diagram of a sub-shaft in an embodiment of the hydraulic spindle assembly of the present invention;

FIG. 5 is a structural diagram of a shaft core of a hydraulic spindle assembly according to an embodiment of the present invention;

FIG. 6 is a block diagram of a first bearing shell of an embodiment of the hydraulic spindle assembly of the present invention;

FIG. 7 is a cross-sectional view of an embodiment of the hydraulic spindle assembly of the present invention in an initial state;

FIG. 8 is a diagram illustrating a structure of a primary shaft and a secondary shaft in an initial state according to an embodiment of the hydraulic spindle assembly of the present invention;

FIG. 9 is a cross-sectional view of the hydraulic spindle assembly of an embodiment of the present invention in an initial state, taken through a sub-spindle fin;

FIG. 10 is a cross-sectional view of an embodiment of the hydraulic spindle assembly of the present invention shown in an initial state, in a position where it passes through a fin of a female spindle;

fig. 11 is a schematic view illustrating a positional relationship between the fins of the sub-shaft and the fins of the main shaft in an initial state according to an embodiment of the hydraulic rotating shaft assembly of the present invention;

FIG. 12 is a cross-sectional structural view of one embodiment of a hydraulic spindle assembly of the present invention shown with the spindle rotated to an intermediate position;

FIG. 13 is a schematic diagram of a structure of the combination of the main shaft and the sub shaft when the sub shaft rotates to an intermediate position according to an embodiment of the hydraulic rotary shaft assembly of the present invention;

FIG. 14 is a cross-sectional view of an embodiment of the hydraulic spindle assembly of the present invention at a position through one of the sub-spindle fins when the spindle is rotated to the neutral position;

FIG. 15 is a cross-sectional view of a hydraulic pivot assembly embodiment of the present invention at a position passing through a female pivot fin when the pivot is pivoted to an intermediate position;

FIG. 16 is a cross-sectional view of a hydraulic spindle assembly of an embodiment of the present invention after the spindle has rotated a maximum angle;

fig. 17 is a structure diagram of the matching between the main shaft and the sub shaft after the sub shaft rotates by the maximum angle according to the embodiment of the hydraulic rotating shaft assembly provided by the invention;

FIG. 18 is a cross-sectional view of a hydraulic spindle assembly of an embodiment of the present invention taken through a sub-spindle fin after the spindle has rotated a maximum angle;

FIG. 19 is a cross-sectional view of an embodiment of the hydraulic spindle assembly of the present invention at a position through one of the female spindle fins after the spindle has rotated a maximum angle;

fig. 20 is a schematic diagram illustrating a positional relationship between a sub-shaft fin and a main shaft fin after the sub-shaft rotates by a maximum angle according to an embodiment of the hydraulic rotary shaft assembly of the present invention;

fig. 21 is an external view of a first embodiment of smart glasses according to the present invention;

FIG. 22 is a view of the inner structure of the first embodiment of the smart glasses according to the present invention after hiding the temple of the glasses frame;

fig. 23 is a sectional view of a second embodiment of the hydraulic rotary shaft assembly provided by the present invention.

Reference numerals are as follows:

the structure comprises a female shaft 1, a female shaft connecting piece 11, a female shaft groove 12, an accommodating channel 13, female shaft fins 14, a sliding hole 15, a notch 16, a shaft core base 17, a micro-gap 18 and a connecting pipe 19;

the structure comprises a sub-shaft 2, a sub-shaft connecting piece 21, a bearing bush 22, a sub-shaft baffle arm 23, a sub-shaft fin 24, a bearing bush groove 25 and a bearing bush key 26;

the shaft core 3, the shaft core groove 31, the shaft core end cover 32, the shaft core main body 33 and the shaft core bulge 34;

the temple 4, the temple heat pipe 41, the main plate 42, the chip 43;

a frame 5 and a frame heat pipe 51.

A first circumferential opening a, a second circumferential opening B, a first radial opening C, a second radial opening D.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The core of the invention is to provide a hydraulic rotating shaft assembly which has better heat conducting capacity. The other core of the invention is to provide the intelligent glasses comprising the hydraulic rotating shaft assembly, wherein the hydraulic rotating shaft assembly has better heat conducting capacity.

Referring to fig. 1 to 22, the first embodiment of the hydraulic rotating shaft assembly provided by the present invention includes a main shaft 1, a sub-shaft 2, and a shaft core 3.

The shaft core 3 is fixedly connected to the female shaft 1, and the sub-shaft 2 is rotatably connected to the female shaft 1. As shown in fig. 1, at least partial surfaces of the mother shaft 1 and the son shaft 2 respectively constitute outer surfaces of the hydraulic rotating shaft assembly, that is, one of the mother shaft 1 and the son shaft 2 does not completely cover the other, and other structures can be connected to realize rotating shaft functions through exposed parts on the mother shaft 1 and the son shaft 2, for example, in the smart glasses, the son shaft 2 is connected with the glasses leg 4, and the mother shaft 1 is connected with the glasses frame 5.

The female shaft 1 comprises a female shaft groove 12 with a first circumferential opening A, the shaft core 3 comprises a shaft core groove 31 with a second circumferential opening B, the female shaft groove 12 is in radial communication with the shaft core groove 31 to form a sealed hydraulic chamber, and the hydraulic chamber is filled with heat-conducting liquid. Preferably, the heat-conducting liquid is liquid metal with strong heat-conducting capacity. In addition, the opening directions of the first circumferential opening a and the second circumferential opening B are opposite.

As shown in fig. 10, the sub-shaft 2 includes a sub-shaft stopper arm 23 sealed to the first circumferential opening a and a bearing shell 22 sealed to the second circumferential opening B.

Note that the axial direction, the circumferential direction, and the radial direction are based on a rotation center line when the sub-shaft 2 rotates.

When the sub-shaft 2 rotates, the volume of the shaft core groove 31 and the volume of the main shaft groove 12 change in a reverse trend. Specifically, when the sub-shaft 2 rotates in the forward direction, the sub-shaft blocking arm 23 gradually extends into the main shaft groove 12 along the circumferential direction, meanwhile, the bearing bush 22 gradually retreats from the shaft core groove 31 along the circumferential direction, the main shaft groove 12 becomes smaller, the shaft core groove 31 becomes larger, and the heat-conducting liquid is squeezed into the shaft core groove 31 from the main shaft groove 12 by the sub-shaft blocking arm 23; the sub-shaft 2 rotates reversely, the sub-shaft baffle arm 23 gradually retreats from the main shaft groove 12 along the circumferential direction and the bearing bush 22 gradually extends into the shaft core groove 31 along the circumferential direction, the main shaft groove 12 becomes large and the shaft core groove 31 becomes small, and the heat-conducting liquid is squeezed into the main shaft groove 12 from the shaft core groove 31 by the bearing bush 22.

In this embodiment, the shaft core groove 31 and the female shaft groove 12 are communicated to form a sealed hydraulic chamber, in which a heat-conducting liquid is contained, so that the heat-conducting capacity of the hydraulic rotating shaft assembly can be improved. When installing in intelligent glasses, sub-axle 2 and female axle 1 are connected respectively in mirror leg 4 and picture frame 5, and mirror leg 4 can be through the better hydraulic pressure pivot subassembly of thermal conductivity to picture frame 5 heat conduction for picture frame 5 can be used for the heat dissipation. In addition, when the sub-shaft 2 rotates relative to the main shaft 1, the volume of the shaft core groove 31 and the volume of the main shaft groove 12 change, the shape of the hydraulic cavity changes, and the heat-conducting liquid flows between the main shaft groove 12 and the shaft core groove 31, so that the basic rotating function of the hydraulic rotating shaft assembly cannot be influenced.

Further, as shown in fig. 8 and 11, at least two receiving passages 13 extending in the circumferential direction are provided in the female shaft groove 12. The sub-shaft blocking arm 23 is provided with an insert which can circumferentially move and correspondingly extend into each accommodating channel 13. Through the insertion sheet and the insertion cooperation of the accommodating channel 13, the heat dissipation area of the hydraulic rotating shaft assembly can be increased, and meanwhile, the structural stability of the hydraulic rotating shaft assembly is improved.

Wherein preferably the receiving channels 13 are arranged one after the other in axial direction. More specifically, as shown in fig. 11, the female shaft groove 12 is provided with at least two female shaft fins 14 arranged in sequence along the axial direction, a gap between two adjacent female shaft fins 14 forms the accommodating channel 13, the male shaft 2 is provided with at least two male shaft fins 24 arranged in sequence along the axial direction as inserting pieces, and the female shaft fins 14 and the male shaft fins 24 form a staggered structure. In the present embodiment, the circumferential zigzag end surface of the sub-shaft fin 24 facing the main shaft groove 12 is an end surface of the sealing main shaft groove 12. The axial length of the hydraulic rotating shaft assembly is usually relatively large, the accommodating channel 13 and the inserting piece are arranged through the axially arranged sub-shaft fins 24 and the axially arranged main shaft fins 14, and the heat conducting area can be fully enlarged.

Of course, in other embodiments, the structure of the housing channel 13 may be a blind-hole groove with only one circumferential opening; in addition, at least two receiving passages 13 may be provided in parallel in the radial direction; in addition, the receiving channel 13 can also be arranged on the sub-shaft stop arm 23, while the insertion sheet is arranged on the main shaft fin 14.

Further, the insert and its corresponding receiving channel 13 have a slight gap 18 in the axial direction, that is, along the axial direction, the receiving channel 13 and its corresponding receiving sub-shaft fin 24 have a certain distance in the axial direction without direct contact. Typically, the micro-gap 18 is small in axial dimension, just enough to accommodate a liquid film of thermally conductive liquid. Based on the above arrangement of the micro-gap 18, when the sub-shaft fin 24 extends and moves to the limit position towards the accommodating channel 13, as shown in fig. 20, the heat-conducting liquid in the micro-gap 18 is not squeezed away by the sub-shaft fin 24, and a liquid heat-conducting film is formed between the sub-shaft fin 24 and the main shaft fin 14, so that good heat conduction is achieved between the sub-shaft fin 24 and the main shaft fin 14, and the thermal resistance of the contact interface between the sub-shaft 2 and the main shaft 1 is prevented from being too high. In addition, in other embodiments, there may be a gap between the sub-shaft fin 24 and the corresponding receiving channel 13 in the radial direction.

Wherein optionally there are two extreme positions of the sub-shaft 2 in the circumferential direction. In this embodiment, as shown in fig. 11, when the sub-shaft 2 moves to the first limit position along the circumferential direction, as shown in fig. 11, the sub-shaft fins 24 completely exit from the corresponding receiving channels 13, and at this time, the volume of the main shaft slot 12 includes the space between the adjacent sub-shaft fins 24 and the space between the adjacent main shaft fins 14; when the sub-shaft 2 moves to the second limit position along the circumferential direction, as shown in fig. 20, the sub-shaft fins 24 completely enter the corresponding accommodating channels 13, the sub-shaft fins 24 are circumferentially abutted against the accommodating channels 13, the main shaft fins 14 are circumferentially abutted against the sub-shaft blocking arms 23, and at this time, the volume of the main shaft groove 12 only remains the gap portion between the adjacent sub-shaft fins 24 and the main shaft fins 14 after the insertion and matching. When being applied to intelligent glasses, sub-axle 2 is connected in mirror leg 4, and mother's axle 1 is connected in picture frame 5, and when mirror leg 4 was opened to the maximum angle for picture frame 5, sub-axle 2 moved to second extreme position for mother's axle 1, relied on sub-axle 2 and mother's axle 1 cooperation heat conduction.

Of course, in other embodiments, the relative position relationship between the two extreme positions of the sub-shaft 2 in the circumferential direction and the insertion sheet and the receiving channel 13 may be set in other ways, for example, in another embodiment, a partial structure of the insertion sheet is always inserted into the receiving channel 13 in the rotation range of the sub-shaft 2.

Further, as shown in fig. 3, the female shaft 1 has a tubular structure penetrating in the axial direction. The shaft core 3 is inserted into the inner cavity of the female shaft 1, the peripheral wall of the female shaft 1 is provided with a sliding hole 15 in a penetrating mode along the radial direction, and the sub-shaft 2 extends into the inner cavity through the sliding hole 15. Because the inner chamber of the main shaft 1 is all stretched into by the sub-shaft 2 and the shaft core 3, the hydraulic rotating shaft assembly is stable in connection and compact in structure by the positioning of the main shaft 1.

Further, referring to fig. 15, the female shaft groove 12 is disposed on the inner circumferential surface of the female shaft 1, the shaft core groove 31 is disposed on the outer circumferential surface of the shaft core 3, a first radial opening C of the female shaft groove 12 on the inner side in the radial direction and a second radial opening D of the shaft core groove 31 on the outer side in the radial direction have a portion overlapping, that is, no matter how the sub-shaft 2 rotates, the second radial opening D always has a portion area overlapping with the first radial opening C, a communication state of the two groove bodies is maintained, and a connecting channel is not additionally disposed between the female shaft groove 12 and the shaft core groove 31, which facilitates processing of a hydraulic chamber, and is beneficial to miniaturization and compact structure of the hydraulic rotating shaft assembly.

Further, as shown in fig. 7, the first circumferential opening a is in butt communication with the first radial opening C on the female shaft 1, and the second circumferential opening B is in butt communication with the second radial opening D on the shaft core 3.

As shown particularly in fig. 15, for the surfaces that define the extent of the female shaft groove 12 both circumferentially and radially: one of the positions in the circumferential direction and the radially outer end position is defined by the inner surface of the female shaft 1, while the radially inner end position is defined by the shaft core 3 and the other position in the circumferential direction is defined by the sub shaft stopper arm 23. For the surface that defines the range of the core groove 31 in the circumferential direction and the radial direction: one of the positions in the circumferential direction and the radially inner end position is defined by the outer surface of the shaft core 3, while the radially inner end position is defined by the female shaft 1 and the other position in the circumferential direction is defined by the bearing bush 22. It can be seen that, the concave surfaces are directly processed on the surfaces of the female shaft 1 and the shaft core 3, that is, the female shaft groove 12 and the shaft core groove 31 are correspondingly formed, the processing is convenient, and the assembly of the sub-shaft 2 is convenient. In addition, the axial ends of the female shaft groove 12 and the shaft core groove 31 may be defined by the shaft core 3 and/or the female shaft 1.

Preferably, the sub-shaft blocking arm 23 and the bearing bush 22 are movably and hermetically buckled on the outer surface of the shaft core 3, and the shaft core 3 can directly limit the radial position of the sub-shaft blocking arm 23 and the bearing bush 22, so that the motion stability of the sub-shaft blocking arm 2 and the bearing bush 22 is ensured.

Further, as shown in fig. 4, 6 and 12, the sub-shaft 2 includes a sub-shaft coupling piece 21, and the sub-shaft coupling piece 21 extends from the slide hole 15 into the inner cavity of the main shaft 1. The sub-shaft stopper arm 23 and the bush 22 extend from one end of the sub-shaft connecting piece 21 extending into the inner cavity in both directions in the circumferential direction. The sub-shaft 2 forms a Y-shaped structure through a sub-shaft connecting piece 21, a sub-shaft baffle arm 23 and a bearing bush 22, and machining is facilitated. Preferably, the bearing bush 22 is provided with a bearing bush key 26, the sub-shaft connecting piece 21 is provided with a bearing bush groove 25, and the bearing bush key 26 is inserted and fixed in the bearing bush groove 25 to transmit the torque of the sub-shaft connecting piece 21 to the bearing bush 22, so as to realize the fixed connection between the bearing bush 22 and the sub-shaft connecting piece 21, and the split type arrangement is adopted, so that the processing of the sub-shaft 2 is further facilitated.

In addition, as shown in fig. 1, a female shaft connecting piece 11 is arranged on the outer surface of the female shaft 1, and the connection of the hydraulic rotating shaft assembly and other structures is realized through a male shaft connecting piece 21 and the female shaft connecting piece 11. Alternatively, when the sub-shaft 2 moves to the first limit position along the circumferential direction, the sub-shaft connecting piece 21 and the main shaft connecting piece 11 form an included angle of 90 degrees, and when the sub-shaft 2 moves to the second limit position along the circumferential direction, the sub-shaft connecting piece 21 and the main shaft connecting piece 11 form an included angle of 180 degrees.

Further, as shown in fig. 2, 3 and 5, a notch 16 is provided on one axial end surface of the female shaft 1, the shaft core 3 includes a shaft core main body 33 extending into the inner cavity and a shaft core protrusion 34 fixed on the outer peripheral surface of the shaft core main body 33, the shaft core protrusion 34 is inserted into the notch 16 along the axial direction, and the notch 16 can circumferentially limit the shaft core protrusion 34. In addition, both ends of the shaft core main body 33 in the axial direction are provided with shaft core end caps 32 to seal two axial openings of the inner cavity of the female shaft 1, respectively.

Wherein, as shown in fig. 3, the one end of keeping away from breach 16 in the axial in the inner chamber is provided with axle core base 17, and axle core 3 can move to propping against with axle core base 17 towards axial in the inner chamber to realize that the axle core is spacing in the axial on female axle 1. In addition, the axle core base 17 is of an annular structure, and an axle core end cover 32 of the axle core 3 is in inserting fit with a middle through hole of the axle core base 17, so that radial spacing between the female axle 1 and the axle core 3 is realized, and comprehensive fixed connection between the female axle 1 and the axle core is realized.

The hydraulic pressure pivot subassembly that this embodiment provided, the theory of operation is as follows:

(1) as shown in fig. 8 to 11, when the parent axis 1 and the child axis 2 are at 90 °, the child axis fin 24 and the parent axis fin 14 are not in contact. The gaps of the fins are filled with liquid metal, and at the moment, most of the liquid metal is positioned between the adjacent sub-shaft fins 24 and between the adjacent main shaft fins 14, and a small amount of the liquid metal is positioned in the shaft core groove 31 reserved between the bearing bush 22 and the shaft core 3.

(2) As shown in fig. 12 to 15, when the sub-shaft 2 rotates 45 ° to 135 ° from the main shaft 1, the sub-shaft 2 drives the bearing bush 22 to rotate 45 ° too, and half of the sub-shaft fins 24 and half of the main shaft fins 14 are inserted into each other. During the rotation, the female shaft groove 12 defined between the sub-shaft fin 24 and the female shaft fin 14 is gradually reduced, the shaft core groove 31 between the shaft core 3 and the bearing bush 22 is gradually increased, and the liquid metal is extruded into the shaft core groove 31 from the fin female shaft groove 12.

(3) As shown in fig. 16 to 20, when the sub-shaft 2 rotates 90 ° and makes an angle of 180 ° with the main shaft 1, the sub-shaft 2 drives the bearing bush 22 to rotate 90 °, the sub-shaft fins 24 and the main shaft fins 14 are completely inserted, the main shaft fins 14 are matched with the sub-shaft fins 24 and conduct heat, the contact area when the sub-shaft 2 and the main shaft 1 are in contact is increased, and almost all of the liquid metal in the main shaft groove 12 is pressed into the bearing bush groove 25. Because the sub-shaft fins 24 and the main shaft fins 14 are completely soaked in the liquid metal in the initial state, at this time, a layer of uniform liquid metal film is remained in the micro-gap 18 between the sub-shaft fins 24 and the main shaft fins 14, so that the sub-shaft fins 24 and the main shaft fins 14 can conduct heat well.

(4) When the sub-shaft 2 is rotated back to the initial state, the liquid metal in the shaft core groove 31 is squeezed into the main shaft groove 12 again, and the process is repeated, so that the sub-shaft fins 24 and the main shaft fins 14 can be covered with a layer of uniform liquid metal each time the sub-shaft 2 is opened to 180 degrees.

In this embodiment, the main shaft fins 14, the sub shaft fins 24, the bearing bushes 22 and the shaft core 3 jointly form a closed hydraulic cavity, the shape of the hydraulic cavity changes along with the rotation of the sub shaft 2, and the liquid metal can be repeatedly adjusted back to the gap between the sub shaft fins 24 and the main shaft fins 14, so that when the sub shaft fins 24 are inserted into the gap between the main shaft fins 14, a layer of homogeneous liquid metal film is arranged on the surfaces of the sub shaft fins 24 and the main shaft fins 14 and serves as a heat conduction interface material and a lubricant, the thermal resistance of a contact surface is effectively reduced, and the hydraulic rotating shaft assembly has high thermal conductivity.

Obviously, in other embodiments, the structures and communication modes of the female shaft groove 12 and the shaft core groove 31 can be realized by other structures. In a second embodiment, as shown in fig. 23, the female shaft 1 is an arc-shaped wall, a female shaft groove 12 is formed at one circumferential end thereof, the sub-shaft blocking arm 23 is movably inserted into the female shaft groove 12, the shaft core 3 is also an arc-shaped wall, a shaft core groove 31 is formed at one axial end thereof, and the bearing bush 22 is movably inserted into the shaft core groove 31, wherein the female shaft groove 12 and the shaft core groove 31 are communicated with each other in the radial direction through another connecting pipe 19, and at this time, spaces in the female shaft groove 12, the shaft core groove 31 and the connecting pipe 19 together form a sealed hydraulic chamber. In addition, in this embodiment, two circumferential limiting surfaces of the female shaft groove 12 are both planar, that is, the fin structure of the embodiment is not provided, which is convenient for processing.

In addition to the hydraulic spindle assembly, the invention also provides intelligent glasses, in particular AR or VR. The intelligent glasses comprise a hydraulic rotating shaft assembly, specifically can be the hydraulic rotating shaft assembly provided in any one of the above embodiments, and the beneficial effects can be obtained by correspondingly referring to the above embodiments. The intelligent glasses further comprise glasses legs 4 and a glasses frame 5, wherein the glasses legs 4 are provided with glasses leg heat pipes 41, a main board 42 and a chip 43, and the glasses frame 5 is provided with a glasses frame heat pipe 51. Wherein the chip 43 is fixed on the main board 42 and is in contact connection with the temple heat pipe 41.

As shown in fig. 21 and 22, the sub-shaft 2 is connected to the temple 4, and the main shaft 1 is connected to the frame 5, and more specifically, the frame heat pipe 51 and the temple heat pipe 41 are respectively connected to the hydraulic rotating shaft assembly in a contact manner, specifically, welded. In this embodiment, the heat transfer path generated by the chip 43 is: the chip 43, the temple heat pipe 41, the hydraulic rotating shaft assembly and the frame heat pipe 51 are arranged on the frame 5, so that heat on the chip 43 in the temple 4 can be quickly conducted to the frame 5, auxiliary heat dissipation is carried out by using the frame 5, and meanwhile, the temple 4 can be normally bent.

It will be understood that when an element is referred to as being "secured" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The hydraulic rotating shaft assembly and the intelligent glasses provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. A hydraulic spindle assembly, comprising: the main shaft (1), the sub shaft (2) and the shaft core (3); the shaft core (3) is fixedly connected to the main shaft (1), the sub-shaft (2) is rotatably connected to the main shaft (1), and at least partial surfaces of the main shaft (1) and the sub-shaft (2) respectively form the outer surface of the hydraulic rotating shaft assembly; the female shaft (1) comprises a female shaft groove (12) with a first circumferential opening, the shaft core (3) comprises a shaft core groove (31) with a second circumferential opening, the female shaft groove (12) is radially communicated with the shaft core groove (31) to form a sealed hydraulic cavity, and the hydraulic cavity is filled with heat-conducting liquid; the sub-shaft (2) comprises a sub-shaft baffle arm (23) sealed at the first circumferential opening and a bearing bush (22) sealed at the second circumferential opening; when the sub-shaft (2) rotates, the volume of the shaft core groove (31) and the volume of the main shaft groove (12) change in an opposite direction.

2. A hydraulic spindle assembly according to claim 1, characterized in that at least two receiving channels (13) extending in the circumferential direction are provided in one of the female spindle groove (12) and the male spindle stop arm (23), and an insert piece is provided in the other one of the female spindle groove and the male spindle stop arm and is corresponding to each receiving channel (13) in a circumferentially movable manner.

3. A hydraulic spindle assembly according to claim 2, characterized in that the spindle groove (12) is provided with at least two spindle fins (14) arranged in sequence in the axial direction, and the gap between two adjacent spindle fins (14) forms the receiving channel (13); at least two sub-shaft fins (24) which are sequentially arranged along the axial direction are arranged on the sub-shaft (2) and are used as the inserting pieces.

4. A hydraulic spindle assembly according to claim 2, characterized in that the insert and the receiving channel (13) into which it extends correspondingly have a micro-gap (18) in the axial direction.

5. A hydraulic rotating shaft assembly according to any one of claims 1 to 4, characterized in that the female shaft (1) is a cylindrical structure which penetrates in the axial direction; the shaft core (3) is inserted into an inner cavity of the female shaft (1), a sliding hole (15) penetrates through the peripheral wall of the female shaft (1) along the radial direction, and the sub-shaft (2) extends into the inner cavity through the sliding hole (15).

6. A hydraulic spindle assembly according to claim 5, characterized in that the female spindle groove (12) is provided on an inner peripheral surface of the female spindle (1), the spindle groove (31) is provided on an outer peripheral surface of the spindle (3), and a first radial opening of the female spindle groove (12) on a radially inner side and a second radial opening of the spindle groove (31) on a radially outer side have a portion which coincides.

7. The hydraulic spindle assembly of claim 6 wherein the first circumferential opening is in abutting communication with the first radial opening and the second circumferential opening is in abutting communication with the second radial opening.

8. A hydraulic spindle assembly according to claim 5, characterised in that the sub-spindle (2) comprises a sub-spindle connection piece (21), which sub-spindle connection piece (21) extends from the slide hole (15) into the inner cavity; the sub-shaft baffle arm (23) and the bearing bush (22) extend from one end, extending into the inner cavity, of the sub-shaft connecting piece (21) towards two circumferential directions.

9. The hydraulic rotating shaft assembly as claimed in claim 5, wherein a notch (16) is formed in one axial end face of the female shaft (1), the shaft core (3) comprises a shaft core main body (33) extending into the inner cavity and a shaft core protrusion (34) fixed on the outer peripheral surface of the shaft core main body (33), the shaft core protrusion (34) is inserted into the notch (16) along the axial direction, and the notch (16) circumferentially limits the shaft core protrusion (34).

10. An intelligent glasses, comprising a glasses frame (5) and glasses legs (4), characterized in that, further comprising a hydraulic rotating shaft assembly as claimed in any one of claims 1 to 9, one of the sub-shaft (2) and the main shaft (1) is connected to the glasses frame (5), the other is connected to the glasses legs (4), a glasses frame heat pipe (51) is arranged in the glasses frame (5), glasses leg heat pipes (41) are arranged in the glasses legs (4), and the glasses frame heat pipe (51) and the glasses leg heat pipes (41) are respectively in contact connection with the hydraulic rotating shaft assembly.