Patent Application
20250203817
The present application relates to the technical field of electro-acoustic conversion, in particular to a speaker box.
Speaker boxes are widely adopted in portable mobile electronic products, such as mobile phones, to convert audio signals into sound for playback. The speaker box has high loudness and good low-frequency sound effects.
A speaker box in the prior art includes a front cover, a rear cover covered on the front cover and enclosing an accommodating space with the front cover, and a sounding driver accommodated in the accommodating space, and the sounding driver divides the accommodating space into a front acoustic cavity and a rear acoustic cavity. However, the speaker box with poor heat dissipation in the related art limits acoustic performance.
In view of the above-mentioned problem, the present application provides a speaker box, so as to solve the technical problem in the related art, making the speaker box have good heat dissipation.
In a first aspect, the present application provides a speaker box 10, comprising:
The speaker box described as above, wherein, preferably, the sounding unit comprises a sounding driver, and a supporting body for supporting the sounding driver on the heat exchange member; the heat exchange member is embedded in the the supporting body and is arranged in a circumferential side of the sounding driver, and part of the heat exchange member is exposed to the supporting body.
The speaker box described as above, wherein, preferably, the heat exchange member is made of metal.
The speaker box described as above, wherein, preferably, the heat exchange member and the supporting body are integrally formed by injection molding.
The speaker box described as above, wherein, preferably, a first end of the supporting body is accommodated in the accommodating cavity, and the casing is provided with a first groove connected to the accommodating cavity; a second end of the supporting body is extended to the outside of the casing through the first groove; the supporting body is provided with a second groove and a third groove; the second groove is arranged through the first end of the supporting body; one end of the third groove forms an opening on the second end of the supporting body, and the other end of the third groove is extended to communicate with the second groove;
The speaker box described as above, wherein, preferably, the second groove is a stepped groove.
The speaker box described as above, wherein, preferably, the casing comprises a front cover and a rear cover that are respectively covered on opposite sides of the sounding driver along a vibration direction of the sounding driver; the rear cover comprises a main plate arranged opposite to the front cover and a side plate bent and extended along a direction of the front cover from an outer peripheral edge of the main plate and is fixedly connected to the front cover, and the side plate is abutted against the front cover for sealing and fixing.
The speaker box described as above, wherein, preferably, the side plate is provided with a fourth groove connected to the rear acoustic cavity; the casing is provided with a sealing cover attached to the casing, and the sealing cover is completely covered on the fourth groove.
The speaker box described as above, wherein, preferably, the speaker box further comprises a conductive terminal configured to electrically connect the sounding driver to an outside world, and the conductive terminal is arranged through the casing and is partially exposed to the casing.
The speaker box described as above, wherein, preferably, the side plate is provided with a fifth groove formed by an end of the side plate close to the front cover recessed toward the main plate; the conductive terminals is extended outside the casing through the fifth groove, and the front cover is covered on the conductive terminal and the side plate for sealing and fixing.
Compared with the related art, in the present application, a heat exchange member is provided in the sounding unit. When the speaker box is in a working state, the sounding unit vibrates and generates heat, and the heat is conducted to the heat exchange medium inside the heat exchange member through a wall of the heat exchange member, and then the heat exchange medium is in contact with the air outside the sounding unit for heat exchange to release the heat, thereby improving the heat dissipation efficiency of the speaker box.
Described above is only an overview of the technical solutions of the present application, in order to understand the technical means of the present application more clearly, it may be implemented according to the content of the description. Besides, in order to make the above and other objects, features and advantages of the present application are more obvious and are easy to understand, the following specific embodiments of the present application are provided.
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are used for the purpose of illustrating preferred embodiments only and are not to limit the present application. Besides, the same components are denoted by the same reference numbers throughout the accompanying drawings. In the accompanying drawings:
In the accompanying drawings, the structures are not necessarily drawn to practical scale.
The reference numbers in the specific embodiments are as follows:
The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, but not to be construed as a limitation of the present application.
The speaker box in the related art has the technical defect of poor heat dissipation. it is found from researches that when the sounding unit in the speaker box is in a working state, the generated heat is transmitted to the rear acoustic cavity and the front acoustic cavity through the air for heat dissipation. On the one hand, a bracket for supporting the sounding body is a plastic structure, which has poor thermal conductivity and low heat dissipation efficiency. On the other hand, the hot air in the rear acoustic cavity is trapped in the rear acoustic cavity, and can only contact the outside air through a leak hole, resulting in poor heat dissipation and limited acoustic performance.
In order to improve the heat dissipation performance of the speaker box 10, as shown in
The interior of the casing 100 has an accommodating cavity 101, and the sounding unit is fixed in the accommodating cavity 101. The sounding unit has a diaphragm for vibrating and sounding. The sounding unit divides the accommodating cavity 101 into a closed rear acoustic cavity 1012 and a front acoustic cavity 1011 communicated with an outside of the casing 100, and the diaphragm is accommodated in the front acoustic cavity 1011.
There is further a heat exchange member 400 in the sounding unit, and the heat exchange cavity 401 is formed in the heat exchange member 400. The heat exchange cavity 401 is filled with a heat exchange medium, and part of the heat exchange member 400 is exposed to the sounding unit, so that the heat exchange member 400 can be contacted with the sounding unit and the outside air. Therefore, the heat exchange member 400 can conduct and exchange heat between the sounding unit and the outside air. The heat exchange medium is preferably cooling liquid. When the speaker box 10 is in a working state, the sounding unit vibrates to generate heat, and the heat is conducted to the heat exchange medium in the heat exchange cavity 401 through a wall of the heat exchange element 400, and then the heat exchange medium contacts the air outside the sounding unit through the wall of the heat exchange member 400 exposed to the air to conduct heat exchange and release heat, thereby reducing the temperature of the sounding unit and improving the heat dissipation efficiency of the speaker box 10.
Further, as shown in
In some embodiments, the heat exchange member 400 is a hollow tube body structure, and the tube body structure is bent into a substantially annular or square shape as a whole. A main body of the heat exchange member 400 is embedded in the supporting body 200, and a main part of the heat exchange member 400 is wrapped in the supporting body 200, so that the heat generated by the sounding driver 300 is dissipated and absorbed by the supporting body 200, and then transmitted to the the heat exchange member 400. Main parts of the heat exchange member 400 can absorb heat uniformly, so that the heat exchange effect with the air can be improved. A head end and a tail end of the heat exchange member 400 are exposed to the outside of the supporting body 200 to exchange heat with the air. An injection port is formed at at least one end of the head end and the tail end, so that the cooling liquid is injected through the injection port. The injection port is sealed or welded with glue after injection, thereby completing the filling of heat exchange medium.
Further, the heat exchange member 400 is made of metal material, and the heat exchange member 400 made of metal material has good thermal conductivity. When the diaphragm in the sounding driver 300 is in the working state, the heat generated by the vibration is more rapidly and efficiently conducted on the heat exchange member 400, thereby improving the overall heat dissipation performance of the speaker box 10.
Further, in order to improve the assembly efficiency of the heat exchange member 400 and the supporting body 200 and facilitate the molding process, in some embodiments, the heat exchange member 400 and the supporting body 200 are integrally formed by injection molding. The molding in this way is relatively simple and has high production efficiency. Specifically, a preparation process of the heat exchange member 400 and the supporting body 200 is as follows.
Further, as shown in
The sounding driver 300 is supported on the second groove 201. A side of the sounding driver 300 with the diaphragm is arranged toward the second groove 201, and is spaced from an inner wall of the accommodating cavity 101. A groove wall of the second groove 201 is arranged on a peripheral side of the sounding driver 300, so that the sounding driver 300 and the second groove 201 are sealed and fixed. The sounding driver 300, the accommodating cavity 101, the second groove 201 and the third groove 202 together form the front acoustic cavity 1011. The sounding driver 300, the supporting body 200 and the accommodating cavity 101 together form the closed rear acoustic cavity 1012.
Further, as shown in
In some embodiments, as shown in
Further, the casing 100 and the cover plate are both made of metal. On the premise of ensuring the structural strength of the casing 100, the casing 100 made of metal can be designed to be thinner than the all-plastic casing 100. Moreover, since the front cover 103 and the rear cover 104 made of metal materials can be fixed by metal welding, there is no need to reserve more space for ultrasonic welding. While assembling the sounding body 300 effectively, the metal casing greatly increases the volume of the cavity of the casing 100, and effectively increases a volume of the rear acoustic cavity 1012 enclosed by the sounding body 300 and the casing 100, thereby improving the acoustic performance of the speaker box 10, especially the low-frequency acoustic performance.
Further, referring to
Further, as shown in
In some embodiments, as shown in
The structures, features and effects of the present application have been described in detail above according to the embodiments shown in the drawings. Described above are only preferred embodiments of the present application, but the scope of implementation of the present application is not limited by the drawings. Any changes made in accordance with the concept of the present application, or modifications to equivalent embodiments with equivalent changes without exceeding the spirit covered by the description and drawings shall fall within the protection scope of the present application.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202210373711.8 | Apr 2022 | CN | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2022/087913 | 4/20/2022 | WO |
