CN110908445B

CN110908445B - Rotating shaft structure and electronic equipment

Info

Publication number: CN110908445B
Application number: CN201911248500.6A
Authority: CN
Inventors: 张业欣
Original assignee: Lenovo Beijing Ltd
Current assignee: Lenovo Beijing Ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2022-01-14
Anticipated expiration: 2039-12-06
Also published as: CN110908445A

Abstract

The present disclosure provides a rotation shaft structure, including: the device comprises a first cylindrical gear, a second cylindrical gear, a first gear shaft extending along the axis of the first cylindrical gear, a second gear shaft extending along the axis of the second cylindrical gear and a torsion structure; the first gear shaft is connected with the torsion structure in a damping rotation mode; the second gear shaft is connected with the torsion structure in a damping rotation mode; the first gear shaft and the second gear shaft are parallel to each other; and the first cylindrical gear and the second cylindrical gear are mutually externally meshed. The present disclosure also provides an electronic device.

Description

Rotating shaft structure and electronic equipment

Technical Field

The present disclosure relates to a hinge structure and an electronic apparatus.

Background

With the continuous development of scientific technology, electronic equipment is rapidly developed, and people can enjoy various conveniences brought by scientific development through various types of electronic equipment.

Electronic devices in the prior art, such as notebook computers, generally include a first body, a second body and a hinge. The rotating shaft is used for connecting the first body and the second body, so that the first body can rotate relative to the second body. Due to the poor stability of the rotating shaft, the first body and the second body are usually connected by two or more rotating shafts in the prior art.

Disclosure of Invention

One aspect of the present disclosure provides a hinge structure, including: the gear mechanism comprises a first cylindrical gear, a second cylindrical gear, a first gear shaft extending along the axis of the first cylindrical gear, a second gear shaft extending along the axis of the second cylindrical gear, and a torsion structure. The first gear shaft is connected with the torsion structure in a damping rotation mode, the second gear shaft is connected with the torsion structure in a damping rotation mode, the first gear shaft and the second gear shaft are parallel to each other, and the first cylindrical gear and the second cylindrical gear are meshed with each other.

Optionally, the first spur gear and the second spur gear are spur gears. Or the first cylindrical gear and the second cylindrical gear are helical cylindrical gears.

Optionally, the torsion structures include a first torsion structure and a second torsion structure that are symmetrical to each other. The first torsion structure includes a first through hole including a first portion and a second through hole including a third portion and a fourth portion. The radial dimension of the first portion is less than the radial dimension of the second portion, and the radial dimension of the third portion is less than the radial dimension of the fourth portion. The first portion extends from the first end of the first through hole to a first predetermined position in the axial direction of the first through hole, and the second portion extends from the first predetermined position in the axial direction of the first through hole to a second end of the first through hole. The third portion extends from the first end of the second through hole to a first predetermined position in the axial direction of the second through hole, and the fourth portion extends from the first predetermined position in the axial direction of the second through hole to the second end of the second through hole. The second portion and the fourth portion communicate with each other to form a first hollow structure.

The second torsion structure includes a third through hole and a fourth through hole, the third through hole includes a fifth portion and a sixth portion, and the fourth through hole includes a seventh portion and an eighth portion. The radial dimension of the fifth portion is less than the radial dimension of the sixth portion, and the radial dimension of the seventh portion is less than the radial dimension of the eighth portion. The fifth portion extends from the first end of the third through hole to a second predetermined position in the axial direction of the third through hole, and the sixth portion extends from the second predetermined position in the axial direction of the third through hole to the second end of the third through hole. The seventh portion extends from the first end of the fourth through hole to the second predetermined position in the axial direction of the fourth through hole, and the eighth portion extends from the second predetermined position in the axial direction of the fourth through hole to the second end of the fourth through hole. The sixth portion and the eighth portion communicate with each other to form a second hollow structure.

Optionally, the first end of the first gear shaft is inserted into the first portion, and the first end of the first gear shaft is in interference fit with the first portion. The first end of the second gear shaft is inserted into the third portion, and the first end of the second gear shaft is in interference fit with the third portion. The second end of the first gear shaft is inserted into the fifth part, and the second end of the first gear shaft is in interference fit with the fifth part. The second end of the second gear shaft is inserted into the seventh part, and the second end of the second gear shaft is in interference fit with the seventh part.

Optionally, the rotating shaft structure further includes: a first support portion and a second support portion. The first supporting part is fixed on the first cylindrical gear, and the plane where the first supporting part is located is parallel to the first gear shaft. And/or the second supporting part is fixed on the second cylindrical gear, and the plane where the second supporting part is located is parallel to the second gear shaft.

Optionally, when transmission is performed between the first cylindrical gear and the second cylindrical gear, an included angle between the first supporting portion and the second supporting portion may be changed within an angle range of 2 pi.

Optionally, the torsion structure is fabricated based on a metal injection molding technique.

Another aspect of the present disclosure provides an electronic device including: the first body, the second body and at least one rotating shaft structure. The first body is fixed on a first cylindrical gear of the rotating shaft structure, and a plane where the first body is located is parallel to the first gear shaft. The second body is fixed on a second cylindrical gear of the rotating shaft structure, and a plane where the second body is located is parallel to the second gear shaft. When the first body and the second body move relatively, the first cylindrical gear and the second cylindrical gear are in transmission.

Optionally, the electronic device further comprises: at least one pipeline. At least one pipeline is embedded in the first hollow structure and/or the second hollow structure.

Optionally, the first body is fixed to the first supporting portion, and the second body is fixed to the second supporting portion. The electronic device includes a hinge structure.

Another aspect of the present disclosure provides a computer-readable storage medium storing computer-executable instructions for implementing the method as described above when executed.

Another aspect of the disclosure provides a computer program comprising computer executable instructions for implementing the method as described above when executed.

Drawings

For a more complete understanding of the present disclosure and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which:

fig. 1 schematically illustrates an application scenario of a hinge structure and an electronic device according to an embodiment of the present disclosure;

FIG. 2 schematically illustrates an example schematic of an electronic device;

FIG. 3 schematically illustrates an example front view of a spindle structure according to an embodiment of the present disclosure;

FIG. 4 schematically illustrates an example perspective view of a spindle structure according to an embodiment of the present disclosure;

fig. 5 schematically illustrates an example front view of a first torsion structure in accordance with an embodiment of the present disclosure;

fig. 6 schematically illustrates an example perspective view of a first torsion structure in accordance with an embodiment of the present disclosure;

fig. 7 schematically illustrates an example front view of a second torsion structure in accordance with an embodiment of the present disclosure;

FIG. 8 schematically shows a schematic view of an electronic device according to an embodiment of the disclosure; and

fig. 9 schematically illustrates an example schematic of a hinge structure of an electronic device according to an embodiment of the disclosure.

Detailed Description

Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood that the description is illustrative only and is not intended to limit the scope of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The terms "comprises," "comprising," and the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components.

All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. It is noted that the terms used herein should be interpreted as having a meaning that is consistent with the context of this specification and should not be interpreted in an idealized or overly formal sense.

Where a convention analogous to "at least one of A, B and C, etc." is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., "a system having at least one of A, B and C" would include but not be limited to systems that have a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.). Where a convention analogous to "A, B or at least one of C, etc." is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., "a system having at least one of A, B or C" would include but not be limited to systems that have a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.).

Some block diagrams and/or flow diagrams are shown in the figures. It will be understood that some blocks of the block diagrams and/or flowchart illustrations, or combinations thereof, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the instructions, which execute via the processor, create means for implementing the functions/acts specified in the block diagrams and/or flowchart block or blocks. The techniques of this disclosure may be implemented in hardware and/or software (including firmware, microcode, etc.). In addition, the techniques of this disclosure may take the form of a computer program product on a computer-readable storage medium having instructions stored thereon for use by or in connection with an instruction execution system.

The embodiment of the disclosure provides a rotating shaft structure and electronic equipment. The hinge structure may include: the first cylindrical gear, the second cylindrical gear, a first gear shaft extending along the axis of the first cylindrical gear, a second gear shaft extending along the axis of the second cylindrical gear, and a torsion structure for determining the relative positional relationship of the first cylindrical gear and the second cylindrical gear. The first gear shaft and the second gear shaft are respectively connected with the torsion structure in a damping rotation mode. The first gear shaft and the second gear shaft are parallel to each other, and the first cylindrical gear and the second cylindrical gear are meshed with each other. The electronic equipment comprises the rotating shaft structure so as to realize mutual rotation between the first body and the second body of the electronic equipment through the rotating shaft structure.

Fig. 1 schematically illustrates an application scenario of a hinge structure and an electronic device according to an embodiment of the present disclosure. It should be noted that fig. 1 is only an example of a scenario in which the embodiments of the present disclosure may be applied to help those skilled in the art understand the technical content of the present disclosure, but does not mean that the embodiments of the present disclosure may not be applied to other devices, systems, environments or scenarios.

As shown in fig. 1, the application scenario may include an electronic device 100, and the electronic device 100 may be various devices including a plurality of bodies and capable of rotating with each other. For example, the mobile phone may be a notebook computer, a foldable mobile phone, a foldable game machine, etc., without limitation. In the example shown in fig. 1, the electronic device 100 is a notebook computer, the electronic device 100 includes a first body 110 and a second body 120, the first body 110 is rotatable relative to the second body 120, and the second body 120 is also rotatable relative to the first body 110, so that the electronic device 100 can be in the first state or the second state shown in fig. 1. In the first state, an included angle between the first body 110 and the second body 120 is greater than 0 and less than or equal to pi. In the second state, an included angle between the first body 110 and the second body 120 is equal to 0.

In order to realize the conversion of the electronic device between the first state and the second state, a rotating shaft is required to be arranged between the first body and the second body of the electronic device. One design is shown in fig. 2, where fig. 2 schematically illustrates an example schematic of an electronic device. In the example shown in fig. 2, the electronic device 200 includes a first body 210, a second body 220, and at least two shafts 230, wherein the shafts 230 are formed by stamping. At least two rotation shafts 230 are used to connect the first body 210 and the second body 220 so that the first body 210 can rotate relative to the second body 220. Since the stability of the single rotation shaft 230 is poor, at least two rotation shafts 230 are required to support the first body 210 and the second body 220. The at least two shafts 230 occupy more space in the axial direction, so that the space of other components (such as the fan outlet 240) of the electronic device 200 that need to be disposed near the axial direction is limited, which may affect the heat dissipation performance and the system performance of the electronic device 200.

According to the embodiment of the present disclosure, a rotating shaft structure is provided, which can at least partially solve the above problem of unstable rotating shaft, and is exemplarily illustrated below by an illustration.

FIG. 3 schematically illustrates an example front view of a spindle structure according to an embodiment of this disclosure.

Fig. 4 schematically illustrates an example perspective view of a spindle structure according to an embodiment of the present disclosure.

As shown in fig. 3 and 4, the hinge structure 300 may include: a first cylindrical gear 310, a second cylindrical gear 320, a first gear shaft 330 extending along an axis of the first cylindrical gear 310, a second gear shaft 340 extending along an axis of the second cylindrical gear 320, and a torsional structure 350. Here, since the first gear shaft 330 and the second gear shaft 340 are shielded by the torsion structure, they are indicated by a dotted line in fig. 3.

The first gear shaft 330 extends from both ends of the first cylindrical gear 310, and the second gear shaft 340 extends from both ends of the second cylindrical gear 320. The first gear shaft 330 is connected to the torsion structure 350 in a rotationally damped manner, and the second gear shaft 340 is connected to the torsion structure 350 in a rotationally damped manner. The first gear shaft 330 and the second gear shaft 340 connected to the torsion structure 350 are parallel to each other, and the first cylindrical gear 310 and the second cylindrical gear 320 are engaged with each other.

As can be understood by those skilled in the art, the rotating shaft structure is formed by the transmission mechanism of the two cylindrical gears, wherein the two cylindrical gears are continuously externally meshed with each other for transmission, so that the transmission efficiency and the transmission smoothness are high. Stable rotation between different bodies in an electronic device can be achieved even if a single hinge structure is applied to the electronic device.

In the example shown in fig. 3 and 4, the first spur gear 310 and the second spur gear 320 are spur gears. In other examples, the first cylindrical gear 310 and the second cylindrical gear 320 may be helical gears. When the first cylindrical gear 310 and the second cylindrical gear 320 are helical cylindrical gears, the rotating shaft structure 300 includes a helical external gear transmission mechanism, and the gear teeth are inclined with respect to the axis, so that an axial force can be formed, the transmission is stable, and the rotating shaft structure is suitable for high-speed transmission.

Referring next to fig. 3 and 4, the torsion structure 350 may include a first torsion structure 351 and a second torsion structure 352 symmetrical to each other, and the first torsion structure 351 and the second torsion structure 352 are exemplarily described below with reference to a legend.

Fig. 5 schematically illustrates an example front view of a first torsion structure in accordance with an embodiment of the present disclosure.

Fig. 6 schematically illustrates an example perspective view of a first torsion structure, in accordance with an embodiment of the present disclosure.

As shown in fig. 5 and 6, the first torsion structure 351 illustratively includes a first through hole 3511 and a second through hole 3512. The first through-hole 3511 includes a first portion 35111 and a second portion 35112, and the second through-hole 3512 includes a third portion 35121 and a fourth portion 35122. Wherein the radial dimension of first portion 35111 is less than the radial dimension of second portion 35112 and the radial dimension of third portion 35121 is less than the radial dimension of fourth portion 35122.

The first portion 35111 extends from a first end of the first through bore 3511 (e.g., the leftmost end of the first through bore 3511 in fig. 5) to a first predetermined location in the axial direction of the first through bore 3511 (e.g., the intersection of the dashed line with the first through bore 3511 in fig. 5). The second portion 35112 extends from an axial first predetermined location of the first through bore 3511 to a second end of the first through bore 3511 (e.g., the rightmost end of the first through bore 3511 in fig. 5).

The third portion 35121 extends from a first end of the second through-hole 3512 (e.g., the leftmost end of the second through-hole 3512 in fig. 5) to a first predetermined location in the axial direction of the second through-hole 3512 (e.g., the intersection of the dashed line with the second through-hole 3512 in fig. 5). The fourth portion 35122 extends from an axial first predetermined location of the second through-hole 3512 to a second end of the second through-hole 3512 (e.g., the rightmost end of the second through-hole 3512 in fig. 5).

The second portion 35112 and the fourth portion 35122 communicate with each other to form a first hollow structure. In the example shown in fig. 5, the second portion 35112 and the fourth portion 35122 are in partial communication, and the first hollow structure formed is a U-shaped hollow structure. In other examples, second portion 35112 and fourth portion 35122 may all be in communication.

Fig. 7 schematically illustrates an example front view of a second torsion structure in accordance with an embodiment of the present disclosure.

As shown in fig. 7, the second torsion structure 352 is symmetrically disposed with the first torsion structure 351. The second torsion structure 352 can include a third through hole 3521 and a fourth through hole 3522. The third through hole 3521 includes a fifth portion 35211 and a sixth portion 35212. The fourth through-hole 3522 includes a seventh portion 35221 and an eighth portion 35222. Wherein the radial dimension of fifth portion 35211 is less than the radial dimension of sixth portion 35212 and the radial dimension of seventh portion 35221 is less than the radial dimension of eighth portion 35222.

The fifth portion 35211 extends from a first end of the third through hole 3521 (e.g., the rightmost end of the third through hole 3521 in fig. 7, the first end of the third through hole 3521 being in a mirror image relationship with the first end of the first through hole 3511) to a second predetermined position in the axial direction of the third through hole 3521 (e.g., the intersection of the dashed line with the third through hole 3521 in fig. 7). The sixth portion 35212 extends from an axial second predetermined location of the third through-hole 3521 to a second end of the third through-hole 3521 (e.g., the leftmost end of the third through-hole 3521 in fig. 7, the second end of the third through-hole 3521 being a mirror image of the second end of the first through-hole 3511).

The seventh portion 35221 extends from a first end of the fourth via 3522 (e.g., the rightmost end of the fourth via 3522 in FIG. 7, with the first end of the fourth via 3522 being a mirror image of the first end of the second via 3512) to a second predetermined location axially of the fourth via 3522 (e.g., the intersection of the dashed line with the fourth via 3522 in FIG. 7). The eighth portion 35222 extends from an axial second predetermined location of the fourth through-hole 3522 to a second end of the fourth through-hole 3522 (e.g., the leftmost end of the third through-hole 3521 in fig. 7, the second end of the fourth through-hole 3522 being a mirror image of the second end of the second through-hole 3512).

The above-mentioned sixth portion 35212 and eighth portion 35222 communicate with each other to form a second hollow structure. In the example shown in fig. 7, sixth section 35212 and eighth section 35222 are in partial communication, forming a second hollow structure having a U-shaped configuration. In other examples, sixth portion 35212 and eighth portion 35222 may all be in communication.

With the understanding of the torsion structure 350, reference is next made to fig. 3 and 4. A first end (e.g., an end protruding from a right end of the first cylindrical gear 310 in fig. 3) of the first gear shaft 330 is inserted into the first portion 35111. The first end of the first gear shaft 330 is interference fit with the first portion 35111, i.e., the first end of the first gear shaft 330 can perform damped rotation in the first portion 35111 based on friction.

A first end (e.g., an end extending from a right end of the second cylindrical gear 320 in fig. 3) of the second gear shaft 340 is inserted into the third portion 35121. The first end of second gear shaft 340 is in an interference fit with third portion 35121, i.e., the first end of second gear shaft 340 may be damped to rotate in third portion 35121 based on friction.

A second end of the first gear shaft 330 (e.g., an end protruding from a left end of the first cylindrical gear 310 in fig. 3) is inserted into the fifth portion 35211. The second end of the first gear shaft 330 is interference fitted with the fifth portion 35211, i.e., the second end of the first gear shaft 330 can perform damped rotation in the fifth portion 35211 based on a frictional force.

A second end of the second gear shaft 340 (e.g., an end extending from the left end of the second cylindrical gear 320 in fig. 3) is inserted into the seventh portion 35221. The second end of second gear shaft 340 is in an interference fit with seventh portion 35221, i.e., the second end of second gear shaft 340 may be damped to rotate in seventh portion 35221 based on friction.

According to an embodiment of the present disclosure, as shown in fig. 4, the rotation shaft structure 300 may further include: a first support 360 and a second support 370. The first supporting portion 360 is fixed to the first cylindrical gear 310, and a plane of the first supporting portion 360 is parallel to the first gear shaft 330. The second support portion 370 is fixed to the second spur gear 320, and a plane on which the second support portion 370 is located is parallel to the second gear shaft 340.

For example, when the transmission is performed between the first cylindrical gear 310 and the second cylindrical gear 320, the included angle between the first supporting portion 360 and the second supporting portion 370 can be changed within an angle range of 0-2 pi.

Further, in order to ensure the stability of the spindle structure 300, the first torsion structure 351 and the second torsion structure 352 are manufactured based on Metal Injection Molding (MIM) technology. The metal injection molding technology is not one of powder metallurgy preparation methods, is different from the traditional powder metallurgy, and is mainly different from the molding method, the traditional powder molding is mainly cold pressing and pressure-equalizing molding, and the metal injection molding technology is molded in an injection mode, so that certain requirements on the powder granularity are met, and powder finer than the traditional powder metallurgy is used. Therefore, the density and strength after sintering are higher than those of the traditional forming technology. So that the first through hole 3511, the second through hole 3512, the third through hole 3521, and the fourth through hole 3522 remain parallel to the axial direction with higher accuracy.

Fig. 8 schematically shows a schematic view of an electronic device according to an embodiment of the disclosure.

As shown in fig. 8, the electronic device 800 is a notebook computer, and in other examples, the electronic device 800 may be various electronic devices including a plurality of bodies connected to each other, which does not limit the present disclosure.

The electronic device 800 includes: a first body 810, a second body 820, and at least one hinge structure 300. It can be seen that the electronic device 800 in this embodiment only includes one hinge structure 300, and the hinge structure 300 is described in detail above with reference to fig. 3 to 7, and is not described again here.

Illustratively, the first body 810 may be a display end of the electronic device 800, and the second body 820 may be a keyboard end of the electronic device 800. The first body 810 and the second body 820 are connected by the rotating shaft structure 300, the first body 810 can rotate relative to the second body 820 around the axis of the rotating shaft structure 300, and the second body 820 can also rotate relative to the first body 810 around the axis of the rotating shaft structure 300.

As can be seen from fig. 3, 4 and 8, the first body 810 is fixed to the first cylindrical gear 310 of the rotating shaft structure 300, and a plane of the first body 810 is parallel to the first gear shaft 330. The second body 820 is fixed to the second cylindrical gear 320 of the rotating shaft structure 300, and a plane of the second body 820 is parallel to the second gear shaft 340. When the first body 810 and the second body 820 move relatively, the first cylindrical gear 310 and the second cylindrical gear 320 transmit power. For example, the first body 810 is fixed to the first supporting portion 360, and the second body 820 is fixed to the second supporting portion 370. The included angle between the first body 810 and the second body 820 may vary within the range of 0-2 pi.

As can be understood by those skilled in the art, the rotating shaft structure of the embodiment of the disclosure adopts a 360-degree centrally-mounted exposed gear design and is combined with an MIM torsion structure, so that a rotating shaft structure with high stability is realized. On the basis, the electronic equipment can only adopt one rotating shaft structure to realize the relative rotation of the first body and the second body. The space occupied by the rotating shaft in the electronic equipment can be effectively reduced, more arrangement space is reserved for other parts, and the appearance and the performance of the electronic equipment are further improved.

Fig. 9 schematically shows an example schematic diagram of a hinge structure of an electronic device according to an embodiment of the present disclosure, and exemplarily shows a schematic diagram of the hinge structure of the electronic device shown in fig. 8.

As shown in fig. 9, the electronic device 800 also includes at least one pipeline 830. For example, the at least one pipeline 830 may be various cables such as a display screen Cable (LCD Cable), an Antenna Cable (Antenna Cable), etc., without limitation.

The at least one pipeline 830 may be embedded in a first hollow structure 380 (e.g., a hollow structure surrounded by a dotted line in fig. 9) formed by the first torsion structure 351. Alternatively or additionally, the at least one line 830 may be embedded in a second hollow structure formed by the second torsion structure 352, the second hollow structure being symmetrically disposed with respect to the first hollow structure 380.

The deployment of the pipeline 830 is illustratively described below with reference to the first hollow structure 380 shown in fig. 9. Referring to fig. 5, 6, 7 and 9, in the example shown in fig. 9, the second portion 35112 and the fourth portion 35122 of the first torsion structure 351 are partially communicated to form a first hollow structure 380 (e.g., a portion formed by a dotted line in fig. 9) having a U-shaped spatial structure. A length of pipeline 830 (e.g., the portion shown as diagonal stripes in fig. 9) is deployed within the U-shaped space. Similarly, the second torsion structure 352 may also be formed to have various pipes disposed therein according to the requirement, and is not limited herein.

According to the scheme of this embodiment, since the electronic device 800 only employs one rotating shaft structure 300, a sufficient space is left for disposing an air outlet of a fan, for example, and various pipelines used by the electronic device 800 can be placed in the hollow structure, the hollow structure of the torsion structure can be effectively utilized, and the reasonable layout of each component in the electronic device is realized. Thereby enabling the electronic device 800 to have superior heat dissipation efficiency and system performance.

Those skilled in the art will appreciate that various combinations and/or combinations of features recited in the various embodiments and/or claims of the present disclosure can be made, even if such combinations or combinations are not expressly recited in the present disclosure. In particular, various combinations and/or combinations of the features recited in the various embodiments and/or claims of the present disclosure may be made without departing from the spirit or teaching of the present disclosure. All such combinations and/or associations are within the scope of the present disclosure.

While the disclosure has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Accordingly, the scope of the present disclosure should not be limited to the above-described embodiments, but should be defined not only by the appended claims, but also by equivalents thereof.

Claims

1. A hinge structure comprising: the device comprises a first cylindrical gear, a second cylindrical gear, a first gear shaft extending along the axis of the first cylindrical gear, a second gear shaft extending along the axis of the second cylindrical gear and a torsion structure;

the first gear shaft is connected with the torsion structure in a damping rotation mode;

the second gear shaft is connected with the torsion structure in a damping rotation mode;

the first gear shaft and the second gear shaft are parallel to each other; and

the first cylindrical gear and the second cylindrical gear are mutually externally meshed;

wherein the torsion structures comprise a first torsion structure and a second torsion structure which are symmetrical to each other;

the first torsion structure includes a first through hole and a second through hole, the first through hole including a first portion and a second portion, the second through hole including a third portion and a fourth portion, a radial dimension of the first portion being less than a radial dimension of the second portion, a radial dimension of the third portion being less than a radial dimension of the fourth portion;

the second torsion structure comprises a third through hole and a fourth through hole, the third through hole comprises a fifth part and a sixth part, the fourth through hole comprises a seventh part and an eighth part, the radial size of the fifth part is smaller than that of the sixth part, and the radial size of the seventh part is smaller than that of the eighth part.

2. The spindle structure according to claim 1,

the first cylindrical gear and the second cylindrical gear are straight-tooth cylindrical gears; or

The first cylindrical gear and the second cylindrical gear are helical cylindrical gears.

3. The spindle structure according to claim 1, wherein the first portion extends from a first end of the first through hole to an axial first predetermined position of the first through hole, and the second portion extends from the axial first predetermined position of the first through hole to a second end of the first through hole;

the third portion extends from the first end of the second through hole to a first predetermined position in the axial direction of the second through hole, and the fourth portion extends from the first predetermined position in the axial direction of the second through hole to the second end of the second through hole;

the second part and the fourth part are communicated with each other to form a first hollow structure;

the fifth portion extends from the first end of the third through hole to an axial second predetermined position of the third through hole, and the sixth portion extends from the axial second predetermined position of the third through hole to the second end of the third through hole;

the seventh portion extends from the first end of the fourth through hole to an axial second predetermined position of the fourth through hole, and the eighth portion extends from the axial second predetermined position of the fourth through hole to the second end of the fourth through hole; and

the sixth portion and the eighth portion communicate with each other to form a second hollow structure.

4. The spindle structure according to claim 3,

the first end of the first gear shaft is inserted into the first part, and the first end of the first gear shaft is in interference fit with the first part;

the first end of the second gear shaft is inserted into the third part, and the first end of the second gear shaft is in interference fit with the third part;

the second end of the first gear shaft is inserted into the fifth part, and the second end of the first gear shaft is in interference fit with the fifth part; and

the second end of the second gear shaft is inserted into the seventh part, and the second end of the second gear shaft is in interference fit with the seventh part.

5. The spindle structure according to claim 1, further comprising: a first support portion and a second support portion;

the first supporting part is fixed on the first cylindrical gear, and the plane where the first supporting part is located is parallel to the first gear shaft; and/or

The second supporting part is fixed on the second cylindrical gear, and the plane where the second supporting part is located is parallel to the second gear shaft.

6. A hinge structure according to claim 5, wherein an angle between the first and second support portions is variable within an angle range of 2 π during transmission between the first and second cylindrical gears.

7. The hinge structure of claim 1, wherein the torsion structure is manufactured based on a metal injection molding technique.

8. An electronic device, comprising: a first body, a second body, and at least one spindle structure according to any one of claims 1 to 7;

the first body is fixed on a first cylindrical gear of the rotating shaft structure, and a plane where the first body is located is parallel to the first gear shaft; and

the second body is fixed on a second cylindrical gear of the rotating shaft structure, and a plane where the second body is located is parallel to the second gear shaft;

when the first body and the second body move relatively, the first cylindrical gear and the second cylindrical gear are in transmission.

9. The electronic device of claim 8, wherein the hinge structure further comprises the first hollow structure and the second hollow structure;

the electronic device further includes: at least one pipeline;

the at least one pipeline is embedded in the first hollow structure and/or the second hollow structure.

10. The electronic device of claim 8, wherein the hinge structure further comprises the first support and the second support;

the first body is fixed on the first supporting part, and the second body is fixed on the second supporting part; and

the electronic device comprises the hinge structure.