Patent Description:
To obtain a better sound quality experience, a user has an increasingly high requirement on the sound quality of a speaker module of an electronic device. In a process of implementing this application, the inventor finds that the existing technologies at least have the following problems: Existing electronic devices have limited space for the speaker module, which makes it difficult to improve an audio playback effect that the speaker module of the electronic device can achieve in the limited space, resulting in poor user experience.

Document <CIT> discloses an electronic device having a foldable housing. The foldable housing includes a series of connected hinge members <NUM>. Each hinge member <NUM> includes a cover 1151e, a connector 1151a connecting the hinge member <NUM> to the housing <NUM>, a cover connector 1151b connecting the cover 1151e of the hinge member <NUM> to a cover member 1151e of another hinge member <NUM>, and a sound leakage preventing member 1151c for preventing the sound introduced into an inside space of the hinge member <NUM> from being leaked.

According to a first aspect, an embodiment of this application provides an electronic device, which is defined in claim <NUM>.

Further advantageous features are defined in the dependent claims.

Apparently, the described embodiments are some embodiments of this application rather than all of the embodiments.

In the specification and claims of this application, the terms "first" and "second" are used to distinguish similar objects, but are unnecessarily used to describe a specific sequence or order. It should be understood that the data in such a way are interchangeable in proper circumstances, so that the embodiments of this application can be implemented in other orders than the order illustrated or described herein. Objects distinguished by "first", "second", and the like are usually one type, and the number of objects is not limited. For example, the first object may be one or more than one. In addition, in the specification and the claims, "and/or" means at least one of the connected objects, and the character "/" generally indicates an "or" relationship between the associated objects.

An electronic device provided in the embodiments of this application is described below through specific embodiments and application scenarios thereof with reference to the accompanying drawings.

As shown in <FIG>, the embodiments of this application provide an electronic device, including: a first main body <NUM>, a second main body <NUM>, a speaker module <NUM> and a connecting tube <NUM>, where.

In the embodiments of this application, the electronic device may include, but is not limited to: a mobile phone, a tablet personal computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a personal digital assistant (personal digital assistant, PDA), a mobile Internet device (Mobile Internet Device, MID), or a wearable device (Wearable Device).

The first main body <NUM> may be a housing, or may be a display module, or may further be a composite structure of a housing and a display module; and The second main body <NUM> may be a housing, or may be a display module, or may further be a composite structure of a housing and a display module. Specifically, the first main body <NUM> and the second main body <NUM> may be rotationally connected by a rotating shaft, or may be rotationally connected by a hinge.

The connecting tube <NUM> may be various types of connecting tubes such as a plastic tube, a silicone tube, a rubber tube, or the like. When the connecting tube <NUM> is in the stretched state, the volume of the connecting tube <NUM> is increased, thereby increasing the volume of a rear sound cavity of the speaker module <NUM>; and when the connecting tube <NUM> is in the compressed state, the volume of the connecting tube <NUM> is reduced, thereby reducing the volume of the rear sound cavity of the speaker module <NUM>.

Specifically, that the two ends of the connecting tube <NUM> are respectively in communication with the first cavity <NUM> and the second cavity <NUM> may be that the two ends of the connecting tube <NUM> are respectively connected to and in communication with the first cavity <NUM> and the second cavity <NUM>. In a practical application, the two ends of the connecting tube <NUM> can be respectively sealed and connected to the first cavity <NUM> and the second cavity <NUM> through glue or a double-sided tape.

The first main body <NUM> may further be provided with a front sound cavity <NUM> and a sound outlet hole <NUM>. The sound outlet hole <NUM> may be located on a surface of the first main body <NUM>, and the front sound cavity <NUM> may be located between a sound outlet surface <NUM> of the speaker module <NUM> and the sound outlet hole <NUM>. The front sound cavity <NUM> may be respectively in communication with the sound outlet surface <NUM> and the sound outlet hole <NUM>, so that the sound produced from the sound outlet surface <NUM> is transmitted to the outside through the sound outlet hole <NUM>. The sound outlet surface <NUM> of the speaker module <NUM> may refer to a surface of the speaker module <NUM> for producing a sound.

In the embodiments of this application, since the first cavity, the connecting tube, and the second cavity together form a rear sound cavity of the speaker module, and the connecting tube is stretchable, in a case that the first main body and the second main body rotate relative to each other to the folded state, the connecting tube is in the stretched state, and in a case that the first main body and the second main body rotate relative to each other to the unfolded state, the connecting tube is in the compressed state, so that the volume of the connecting tube can be changed with the change of a relative position of the first main body and the second main body, and then the volume of the rear sound cavity of the speaker module can be changed with the change of the relative position of the first main body and the second main body. When the volume of the rear sound cavity is changed, the sound quality of the speaker module may also be changed. Therefore, in the embodiments of this application, the sound quality of the speaker module can be changed with the change of the relative position of the first main body and the second main body, thereby further improving the audio playback effect of the speaker module of the electronic device.

Optionally, the first cavity <NUM> extends from the speaker module <NUM> to the connecting tube <NUM>.

In the embodiments of this application, specifically, that the first cavity <NUM> extends from the speaker module <NUM> to the connecting tube <NUM> may be that the first cavity <NUM> extends from a non-sound outlet surface <NUM> of the speaker module <NUM> to the connecting tube <NUM>. The non-sound outlet surface <NUM> of the speaker module <NUM> may refer to other surfaces of the speaker module <NUM> other than the sound outlet surface <NUM>.

Optionally, the first main body <NUM> includes a first side close to the rotational joint, and the first cavity <NUM> is located on the first side; and
the second main body <NUM> includes a second side close to the rotational joint, and the second cavity <NUM> is located on the second side.

Since the first main body includes the first side close to the rotational joint, the first cavity is located on the first side, and the second main body includes the second side close to the rotational joint, and the second cavity is located on the second side, the communication between the connecting tube and the first cavity and the second cavity can be more convenient.

Optionally, in a case that the first main body <NUM> and the second main body <NUM> rotate relative to each other to the folded state, the first main body <NUM> includes a first surface <NUM> facing the second main body <NUM> and a second surface <NUM> facing away from the second main body <NUM>, the second main body <NUM> includes a third surface <NUM> facing the first main body <NUM> and a fourth surface <NUM> facing away from the first main body <NUM>, and the first surface <NUM> is opposite to the third surface <NUM>;.

Since the first cavity is located between the first surface and the second surface, the first cavity is provided close to the first surface, and the second cavity is located between the third surface and the fourth surface, the second cavity is provided close to the third surface, the connection between the connecting tube and the first cavity and the second cavity is more convenient and the installation of the connecting tube is more convenient. In addition, a stretching process and a contracting process of the connecting tube can also be smoother.

Optionally, when the connecting tube <NUM> is in the stretched state, the connecting tube <NUM> is an arc-shaped tube; and when the connecting tube <NUM> is in the compressed state, the connecting tube <NUM> is a straight tube.

Since when the connecting tube is in the stretched state, the connecting tube is an arc-shaped tube; and when the connecting tube is in the compressed state, the connecting tube is a straight tube, the stretching process and the contracting process of the connecting tube can be smoother.

Optionally, a communication portion between the connecting tube <NUM> and the first cavity <NUM> is located in the first main body <NUM>.

Since the communication portion between the connecting tube and the first cavity is located in the first main body, the communication portion between the connecting tube and the first cavity can be better protected, and the communication portion between the connecting tube and the first cavity can be prevented from being damaged by a foreign object.

Optionally, a communication portion between the connecting tube <NUM> and the second cavity <NUM> is located in the second main body <NUM>.

Since the communication portion between the connecting tube and the second cavity is located in the second main body, the communication portion between the connecting tube and the second cavity can be better protected, and the communication portion between the connecting tube and the second cavity can be prevented from being damaged by a foreign object.

Optionally, the electronic device further includes a double-shaft hinge structure <NUM>, where
the first main body <NUM> and the second main body <NUM> are connected by the double-shaft hinge structure <NUM>.

Since the first main body and the second main body are connected by the double-shaft hinge structure, the connection between the first main body and the second main body can be more convenient, and a relative movement between the first main body and the second main body can be more convenient and smoother.

Optionally, the double-shaft hinge structure <NUM> includes a first rotating shaft <NUM>, a first connection portion <NUM>, a second rotating shaft <NUM>, a second connection portion <NUM>, and a third connection portion <NUM>, where.

In the embodiments of this application, the first connection portion <NUM> may be provided with a through hole <NUM> for connecting with the first main body <NUM>. The second connection portion <NUM> may be provided with a through hole <NUM> for connecting with the second main body <NUM>.

Since the first rotating shaft and the second rotating shaft are spaced apart from each other and both are located on the first side of the third connection portion, two opposite ends of the third connection portion are respectively connected to the first rotating shaft and the second rotating shaft, the first connection portion is respectively connected to the first rotating shaft and the first main body; and the second connection portion is respectively connected to the second rotating shaft and the second main body, the first main body and the second main body can rotate independently of each other, so that a relative movement between the first main body and the second main body can be more convenient and smoother.

Optionally, there are two double-shaft hinge structures <NUM>, where
the first main body <NUM> and the second main body <NUM> are connected by the two double-shaft hinge structures <NUM>, the two double-shaft hinge structures <NUM> are spaced apart from each other, and the connecting tube <NUM> is located between the two double-shaft hinge structures <NUM>.

In the embodiments of this application, the two double-shaft hinge structures <NUM> may be respectively connected to the first main body <NUM> and the second main body <NUM>.

Since the first main body and the second main body are connected by the two double-shaft hinge structures, the reliability of the connection between the first main body and the second main body is better. In addition, since the connecting tube is located between the two double-shaft hinge structures, the installation of the connecting tube can also be facilitated.

The electronic device further includes a cover plate <NUM>, where the cover plate <NUM> is disposed at the rotational joint, the cover plate <NUM>, the first main body <NUM>, and the second main body <NUM> enclose to form a third cavity, and the connecting tube <NUM> is located in the third cavity;
in a case that the first main body <NUM> and the second main body <NUM> rotate relative to each other to the folded state, at least a portion of the cover plate <NUM> is exposed; and in a case that the first main body <NUM> and the second main body <NUM> rotate relative to each other to the unfolded state, the first main body <NUM> and the second main body <NUM> jointly cover the cover plate.

In the embodiments of this application, the cover plate <NUM> being at least partially exposed may mean that at least a portion of the cover plate <NUM> is exposed outside the first main body <NUM> and the second main body <NUM>. In a width direction of the electronic device, the cover plate <NUM>, the first main body <NUM>, and the second main body <NUM> may or may not be aligned with each other. The double-shaft hinge structure <NUM> may further be located in the third cavity.

Since the electronic device further includes a cover plate, in a case that the first main body and the second main body rotate relative to each other to the folded state, at least a portion of the cover plate is exposed; and in a case that the first main body and the second main body rotate relative to each other to the unfolded state, the first main body and the second main body jointly cover the cover plate. Therefore, when the first main body and the second main body are folded, the cover plate can be exposed to protect an internal structure of the electronic device, for example, a connecting tube, or the like, and when the first main body and the second main body are unfolded, the cover plate can be hidden from the first main body and the second main body to reduce the effect of the cover plate on the normal use of the first main body and the second main body.

In the embodiments of this application, the rear sound cavity of the speaker module of the electronic device is divided into two parts, which are respectively located in the first main body and the second main body, and are sealed and connected by a stretchable connecting tube, making full use of the change of folded space when a foldable electronic device is in different forms, which can increase the volume of the rear sound cavity of the speaker module without encroaching on internal layout space of the electronic device. That is, when the electronic device is folded, the connecting tube is stretched, and the volume of the rear sound cavity of the speaker module is increased, and when the electronic device is unfolded, the connecting tube is compressed, and the volume of the rear sound cavity of the speaker module is reduced, so that the sound quality of the speaker module can be changed with the change of the relative position of the first main body and the second main body, further improving the audio playback effect of the speaker module of the electronic device.

It should be noted that, the terms "include", "comprise", or any other variation thereof in this specification is intended to cover a non-exclusive inclusion, making a process, method, article or apparatus including a series of elements include not only those elements, but also other elements not expressly listed, or further elements inherent to such process, method, article or apparatus. Without more limitations, elements defined by the sentence "including one" does not exclude that there are still other same elements in the processes, methods, objects, or apparatuses.

Claim 1:
An electronic device, comprising: a first main body (<NUM>), a second main body (<NUM>), a speaker module (<NUM>), and a connecting tube (<NUM>), where
the first main body (<NUM>) and the second main body (<NUM>) are rotatable relative to each other to a folded state or an unfolded state;
the first main body (<NUM>) is provided with a first cavity (<NUM>) and the speaker module (<NUM>), and the first cavity (<NUM>) is in communication with the speaker module (<NUM>);
the second main body (<NUM>) is provided with a second cavity (<NUM>); and
the connecting tube (<NUM>) is disposed at a rotational joint between the first main body (<NUM>) and the second main body (<NUM>), two ends of the connecting tube (<NUM>) are respectively in communication with the first cavity (<NUM>) and the second cavity (<NUM>), the first cavity (<NUM>), the connecting tube (<NUM>), and the second cavity (<NUM>) together form a rear sound cavity of the speaker module (<NUM>), and the connecting tube (<NUM>) is stretchable, wherein
in a case that the first main body (<NUM>) and the second main body (<NUM>) rotate relative to each other to the folded state, the connecting tube (<NUM>) is in a stretched state; and in a case that the first main body (<NUM>) and the second main body (<NUM>) rotate relative to each other to the unfolded state, the connecting tube (<NUM>) is in a compressed state;
characterised in that
the electronic device further comprises a cover plate (<NUM>), wherein the cover plate (<NUM>) is disposed at the rotational joint, the cover plate (<NUM>), the first main body (<NUM>), and the second main body (<NUM>) enclose to form a third cavity, and the connecting tube (<NUM>) is located in the third cavity;
in a case that the first main body (<NUM>) and the second main body (<NUM>) rotate relative to each other to the folded state, at least a portion of the cover plate (<NUM>) is exposed; and
in a case that the first main body (<NUM>) and the second main body (<NUM>) rotate relative to each other to the unfolded state, the first main body (<NUM>) and the second main body (<NUM>) jointly cover the cover plate (<NUM>), and the cover plate (<NUM>) is entirely hidden in a cavity formed by the first main body (<NUM>) and the second main body (<NUM>).