WO2021078084A1

WO2021078084A1 - Electronic device

Info

Publication number: WO2021078084A1
Application number: PCT/CN2020/121788
Authority: WO
Inventors: 易小军
Original assignee: 维沃移动通信有限公司
Priority date: 2019-10-23
Filing date: 2020-10-19
Publication date: 2021-04-29
Also published as: CN110752770A; CN110752770B

Abstract

The present disclosure provides an electronic device. The disclosed electronic device comprises a housing, a mounting base, a drive mechanism and a driven part; the housing has an inner chamber and an opening in communication with the inner chamber, the mounting base and the drive mechanism are both provided in the inner chamber, the mounting base is provided with a mounting space, and the drive mechanism comprises at least two field deformation structural members; the field deformation structural members are provided in the mounting space, two adjacent field deformation structural members are spaced apart, and are energized with opposite currents; the driven part is connected to the field deformation structural members; when the field deformation structural members are in an energized state, each of the field deformation structural members drives, by means of deformation, the driven part to protrude outside the housing or retract into the housing through the opening.

Description

Electronic equipment

Cross-references to related applications

This application claims the priority of Chinese Patent Application No. 201911013991.6 filed in China on October 23, 2019, the entire content of which is incorporated herein by reference.

Technical field

The present disclosure relates to the technical field of communication devices, and in particular to an electronic device.

Background technique

With the advancement of technology and the development of terminal equipment, users' demands for full-screen terminal equipment are gradually increasing. The development of full-screen terminal equipment has enabled some driven devices to be installed inside the mobile terminal, such as camera components. Driven devices can enter and exit through the perforations of the electronic device housing under the driving of the driving mechanism, so as to perform corresponding functions. Of course, this arrangement reduces the occupation of the driven device on the screen and increases the screen ratio.

Under normal circumstances, the driving mechanism mainly consists of a driving motor and a transmission device. However, because the structure of the drive motor and the transmission device is relatively complex, the volume is relatively large, which affects the internal space layout of electronic equipment. At the same time, because the transmission device is generally made of metal material, the overall mass of the drive mechanism is relatively large. A certain amount of noise will also be generated, which will affect the user experience.

Summary of the invention

The present disclosure provides an electronic device to solve the problem that the structure of the driving mechanism of the current electronic device is relatively complicated.

In order to solve the above problems, the present disclosure adopts the following technical solutions:

An electronic device includes a housing, a mounting base, a driving mechanism, and a driven device. The housing has an inner cavity and an opening communicating with the inner cavity. The mounting base and the driving mechanism are both arranged in the In the inner cavity, the installation base is provided with an installation space, the driving mechanism includes at least two field-induced deformation structural members, the field-induced deformation structural members are provided in the installation space, and two adjacent ones of the The field-induced deformation structures are distributed at intervals and the energized currents are opposite. The driven device is connected to the field-induced deformation structures. When the field-induced deformation structures are in the energized state, each of the field-induced deformation structures The driven device is driven by deformation to extend out of the housing or retract into the housing through the opening.

The technical solution adopted by the present disclosure can achieve the following beneficial effects:

The electronic equipment disclosed in the embodiments of the present disclosure utilizes the vibration of a plurality of field-induced deformation structures to form a traveling wave that propagates along the expansion and contraction direction of the driven device, and then drives the driven device to move. Compared with the prior art driving mechanism, In the embodiments of the present disclosure, the drive mechanism does not require a drive motor and a transmission device, so that the structure of the drive mechanism is simpler. At the same time, the drive mechanism occupies less internal space of the electronic device and generates less noise.

Description of the drawings

The drawings described here are used to provide a further understanding of the present disclosure and constitute a part of the present disclosure. The exemplary embodiments and descriptions of the present disclosure are used to explain the present disclosure, and do not constitute an improper limitation of the present disclosure. In the attached picture:

FIG. 1 is a schematic diagram of a part of the structure of an electronic device disclosed in an embodiment of the disclosure;

2 is a schematic diagram of a part of the structure of a driven device on an electronic device disclosed in an embodiment of the disclosure in a retracted state;

FIG. 3 is a partial structural diagram of a driven device on an electronic device disclosed in an embodiment of the disclosure in an extended state.

Description of reference signs:

100-installation base, 110-installation space;

200-drive mechanism, 210-field-induced deformation structure, 220-elastic part;

300-Driven device.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the present disclosure clearer, the technical solutions of the present disclosure will be described clearly and completely in conjunction with specific embodiments of the present disclosure and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present disclosure.

The technical solutions disclosed in the various embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

As shown in FIGS. 1 to 3, the present disclosure provides an electronic device. The disclosed electronic device includes a housing, a mounting base 100, a driving mechanism 200, and a driven device 300.

The housing is a peripheral component of the electronic device. The housing can provide installation positions for other components of the electronic device. In the embodiment of the present disclosure, the housing has an inner cavity and an opening communicating with the inner cavity, and the base 100 and the driving mechanism 200 are installed. They are all arranged in the inner cavity of the housing, and the opening can make the driven device 300 extend out of the housing. Of course, the driven device 300 can also be retracted into the inner cavity of the housing through the opening. The opening can be opened on the frame of the housing. Of course, the opening can also be opened at other positions of the housing, not limited to the frame of the housing.

The installation base 100 provides a specific installation position for the drive mechanism 200, the installation base 100 is provided with an installation space 110, and the drive mechanism 200 is provided in the installation space 110.

The driving mechanism 200 is the power source of the driven device 300. The driving mechanism 200 is connected to the driven device 300, and the driving mechanism 200 can drive the driven device 300 to move. In the embodiment of the present disclosure, the driving mechanism 200 includes at least two field-induced The deformable structural member 210, specifically, the field-induced deformation structural member 210 is arranged in the installation space 110, and any two adjacent field-induced deformable structural members 210 are spaced apart and the energized currents are opposite.

The driven device 300 is also arranged in the installation space 110, and the installation space 110 not only provides an installation location for the driven device 300, but also provides a moving space for the movement of the driven device 300. The driven device 300 is connected to the field-induced deformation structure 210. Specifically, the driven device 300 is in direct contact with the field-induced deformation structure 210.

The driven device 300 may include at least one of a camera assembly, a light supplement module, a fingerprint recognition module, a Universal Serial Bus (USB) interface, and a receiver. Of course, the driven device 300 may also include other functional devices that need to be extended out of the housing to work. The embodiment of the present disclosure does not limit the specific type of the driven device 300.

In a specific working process, when the field-induced deformation structure 210 is energized, each field-induced deformation structure 210 undergoes expansion and contraction deformation, and any two adjacent field deformation structures 210 undergo alternate expansion and contraction deformation, so that all The provided at least two field-induced deformation structural members 210 form a traveling wave that propagates along the expansion and contraction direction of the driven device 300, and can drive the driven device 300 to move in the opposite direction of the traveling wave propagation, and finally make the driven device 300 pass through the opening Extend out of the casing or retract into the inner cavity of the casing. Of course, in order to realize that the driven device 300 can move in two directions, it is only necessary to change the direction of the energized current of the field-induced deformation structure 210.

It can be seen from the above working process that the electronic device disclosed in the embodiments of the present disclosure utilizes the vibrations of multiple field-induced deformation structures 210 to form a traveling wave that propagates along the expansion and contraction direction of the driven device 300, and then drives the driven device 300 to move, compared to With regard to the driving mechanism in the prior art, in the embodiment of the present disclosure, the driving mechanism 200 does not require a driving motor and a transmission device, so that the structure of the driving mechanism 200 is simpler. At the same time, the internal space of the electronic device occupied by the driving mechanism 200 is small and And the noise generated is relatively small.

In the electronic device disclosed in the embodiment of the present disclosure, the driving mechanism 200 may further include an elastic portion 220, which is disposed between the driven device 300 and the field-induced deformation structure 210, and the elastic portion 220 can deform the structure according to the field-induced deformation. 210 is deformed and deformed, and the elastic portion 220 can amplify the traveling wave formed by the field-induced deformation structure 210, thereby indirectly improving the driving effect of the field-induced deformation structure 210 on the driven device 300. In an optional solution, the elastic portion 220 can be attached to the surface of the field-induced deformation structure 210, so that the deformation effect generated by the elastic portion 220 is more obvious, and it is more likely to be affected by the field-induced deformation structure 210 to form a more The obvious traveling wave finally makes the driven device 300 easier to be driven.

It can be seen from the above that the number of field-induced deformation structural members 210 is multiple, and any two adjacent field-induced deformation structural members 210 are spaced apart and have opposite energizing currents, so that a complete traveling wave can be formed to drive the driven device. 300 moves. Therefore, in order to facilitate the installation of the field deformation structure 210 and the formation of the drive unit, in a more optional solution, the field deformation structure 210 can be arranged in pairs, so that at least one pair of the field deformation structure 210 It can be arranged in the installation space 110 to improve the efficiency of assembly. The energized currents of the field deformable structural members 210 in each pair are opposite.

Of course, there are many ways to distribute the field deformation structure 210 in the installation space 110. For example, the field deformation structure 210 can be arranged on a side wall of the installation space 110 and be slidably fitted with the driven device 300. The driving device 300 can be slidably fitted with the other side wall of the installation space 110. Therefore, when the field-induced deformation structure 210 drives the driven device 300, the remaining outer surface of the driven device 300 will interact with the inner wall of the installation space 110. Relatively sliding, thereby playing a good supporting role for the movement of the driven device 300, and thereby realizing the driving of the entire driven device 300. However, in this manner, the sliding friction between the driven device 300 and the inner wall of the installation space 110 will affect the driving of the field-induced deformation structure 210 to the driven device 300, and at the same time, the outer surface of the driven device 300 The friction on the upper side will also cause the driven device 300 to shift during the movement.

Based on this, in a more optional solution, both sides of the installation space 110 may be provided with field-induced deformation structural members 210, and the field-induced deformation structural members 210 on both sides are arranged oppositely, so that the driven device 300 is clamped. It is held between the field-induced deformation structural members 210 on both sides, so as not only to prevent the driven device 300 from contacting the inner wall of the installation space 110 to generate a relatively large friction force, but also to implement a more balanced drive to the driven device 300. This prevents the driven device 300 from shifting during the movement. In this case, the field-induced deformation structure 210 on both sides is equivalent to being sandwiched between the driven device 300 and the corresponding side wall in the installation space 110. Of course, on this basis, both sides of the installation space 110 may be provided with a pair of field-induced deformation structural members 210, which can facilitate the overall installation.

Of course, in a more optional solution, the field-induced deformation structure 210 may be a ring-shaped structure, and the ring-shaped structure may be arranged around the installation space 110, and the driven device 300 and the ring-shaped structure may be slidably fitted, so that the driven device 300 moves and cooperates with the inner surface of the ring structure in multiple directions. In this manner, the driven device 300 can largely prevent its outer surface from contacting the inner wall of the installation space 110, thereby improving work efficiency.

In the embodiment provided by the present disclosure, each field-induced deformation structure 210 needs to be energized to generate vibration and deformation, and then play the function of driving the driven device 300, therefore, each field-induced deformation structure 210 needs to be connected to an electronic device. Electrical connection on the circuit board. However, each field-induced deformation structure 210 and the circuit board need an electrical connection method. This situation makes the overall structure more complicated. Therefore, the mounting base 100 may include a circuit board, and the circuit board may be provided with a mounting space 110 The field deformation structure 210 is arranged in the installation space 110 and is electrically connected to the circuit board. In this way, the circuit board directly contacts and is electrically connected to the field deformation structure 210, so that the circuit board can not only facilitate multiple The electrical connection of the field-induced deformation structure 210 can also provide an installation location for the field-induced deformation structure 210. Of course, this method can also save the manufacturing cost of electronic equipment. The compactness simplifies the structure of electronic equipment. In the embodiments of the present disclosure, the circuit board is usually the main board of an electronic device.

There may be multiple specific structures for the installation space 110. Specifically, the specific structure of the installation space 110 can be set according to the specific shape of the driven device 300. Of course, in order to make the driving mechanism 200 arranged in the installation space 110 not The interference of other electronic devices on the circuit board and the movement of the driven device 300 in the installation space 110 are not easily disturbed. In a more optional solution, the circuit board may be provided with installation slots, so that the installation space 110 is slot-shaped The structure further enables the driving mechanism 200 to be arranged in the mounting slot, and ultimately avoids interference from other electronic devices on the circuit board. Of course, the circuit board can also be provided with mounting holes, so that the mounting space 110 has a hole-like structure. This structure can make it easier to coordinate and install the ring structure under the premise that the field-induced deformation structure 210 is a ring structure. At the same time, this structure can also make the structure of the driving mechanism 200 more compact.

Of course, the number of circuit boards can be two, and a gap is formed between the two circuit boards, so that the installation space 110 is a gap. In the specific assembly process, the two circuit boards can be arranged in the inner cavity of the electronic device, and There is a gap between the two circuit boards, so that the field-induced deformation structure 210 is arranged on the gap. Of course, one side of the gap can be provided with the field-induced deformation structure 210. In an optional solution, two of the gap Both sides can be provided with a field-induced deformation structure 210, so that the driving effect of the field-induced deformation structure 210 is better. At the same time, this structure moves on the driven device 300 compared to the mounting grooves or mounting holes on the circuit board. In the process, since the contact area between the driven device 300 and the gap is small, the resistance of the driven device 300 during the movement is smaller.

In the electronic device disclosed in the embodiment of the present disclosure, the field-induced deformation structure 210 can specifically implement the driving function in various ways. For example, the field-induced deformation structure 210 can be an electrostrictive element, and the electrostrictive material can be One of piezoelectric single crystals, piezoelectric polycrystals, piezoelectric polymers or piezoelectric composites. The specific working mode of the electrostrictive element is: when an electric field is applied to the surface of the piezoelectric material, the electric dipole moment will be elongated due to the action of the electric field, and the piezoelectric material will elongate in the direction of the electric field to resist the change, so as to realize the electrostriction. It expands and contracts to achieve the purpose of driving the driven device 300. Of course, when the field-induced deformation structural member 210 is an electrostrictive member, in order to make the electrical connection of the electrostrictive member more convenient, in an optional solution, the mounting base 100 may include a circuit board, and the circuit board is provided with a mounting space 110 , The electrostrictive element can be arranged in the installation space 110 of the circuit board, thereby facilitating the electrical connection between the electrostrictive element and the circuit board.

Of course, the electrostrictive element can be made of multiple materials. In a more optional solution, the electrostrictive element can be a shape memory alloy. The shape memory alloy has a longer length than other electrostrictive elements. Service life.

At the same time, the field-induced deformation structure 210 may include an electromagnetic coil and a magnetostrictive element. Both the electromagnetic coil and the magnetostrictive element are arranged in the installation space 110. The magnetostrictive element is connected to the driven device 300. The electromagnetic coil can be A magnetic field is generated, and after the magnetostrictive element can be magnetized in the magnetic field, it can deform in the direction of magnetization. Specifically, the magnetostrictive material may be one of alloy stretching materials, piezoelectric ceramic materials, or rare earth intermetallic compound magnetostrictive materials. In a specific working process, when the electromagnetic coil is energized, the magnetostrictive element is magnetized by the magnetic field around the electromagnetic coil, which in turn deforms the magnetostrictive element, and finally drives the driven device 300 to extend out of the housing through the opening. Outside or retracted into the shell.

The field-induced deformation structure 210 can also be a photostrictive element. The material of the photostrictive element is a photostrictive material. The photostrictive material can deform under the irradiation of a light beam, so that the photostrictive element can also be driven by deformation. The driven device 300 extends out of the casing or retracts into the casing. Of course, the photostrictive material can be a ferroelectric material, photosensitive perovskite, or other materials.

The electronic devices disclosed in the embodiments of the present disclosure may be devices such as smart phones, tablet computers, e-book readers, and wearable devices. Of course, the electronic device may also be other devices, and the embodiments of the present disclosure do not limit the specific types of terminal devices.

The above embodiments of the present disclosure focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, here is No longer.

The above descriptions are only the embodiments of the present disclosure, and are not used to limit the present disclosure. For those skilled in the art, the present disclosure can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the scope of the claims of the present disclosure.

Claims

An electronic device includes a housing, a mounting base (100), a driving mechanism (200), and a driven device (300). The housing has an inner cavity and an opening communicating with the inner cavity. The mounting base (100) and the driving mechanism (200) are both arranged in the inner cavity, the mounting base (100) is provided with an installation space (110), and the driving mechanism (200) includes at least two field-induced deformation structures (210), the field-induced deformation structure (210) is arranged in the installation space (110), two adjacent field-induced deformation structures (210) are spaced apart and the energized currents are opposite, so The driven device (300) is connected to the field-induced deformation structure (210), and when the field-induced deformation structure (210) is in an energized state, each of the field-induced deformation structures (210) undergoes deformation The driven device (300) is driven to extend out of the casing through the opening or retract into the casing.
The electronic device according to claim 1, wherein the driving mechanism (200) further comprises an elastic portion (220), and the elastic portion (220) is arranged between the driven device (300) and the field-induced deformation Between the structural parts (210).
The electronic device according to claim 1, wherein both sides of the driven device (300) are provided with a pair of field deformation structural members (210), and the field deformation structural members (210) on both sides ( 210) Relative settings.
The electronic device according to claim 1, wherein the field-induced deformation structure (210) is a ring structure, and the ring structure is arranged around the driven device (300).
The electronic device according to claim 1, wherein the mounting base (100) comprises a circuit board, the circuit board is provided with the mounting space (110), the circuit board and the field-induced deformation structure ( 210) Electrical connection.
The electronic device according to claim 5, wherein the circuit board is provided with a mounting slot, and the mounting slot is the mounting space (110).
The electronic device according to claim 5, wherein the number of the circuit boards is two, a gap is formed between the two circuit boards, and the gap is the installation space (110).
The electronic device according to claim 1, wherein the field deformation structure (210) is an electrostrictive element.
The electronic device according to claim 8, wherein the electrostrictive member is a shape memory alloy member.
The electronic device according to claim 1, wherein the field-induced deformation structure (210) comprises an electromagnetic coil and a magnetostrictive element, and both the electromagnetic coil and the magnetostrictive element are arranged in the installation space ( In 110), the magnetostrictive element is connected to the driven device (300), and when the electromagnetic coil is in the energized state, the magnetostrictive element deforms to drive the driven device (300) through the The opening extends out of the casing or retracts into the casing.
The electronic device according to claim 1, wherein the field deformation structure (210) is a photostrictive element.
The electronic device according to claim 1, wherein the driven device (300) includes at least one of a camera assembly, a light supplement module, a fingerprint recognition module, a universal serial bus (USB) interface, and a receiver.