Sound box base structure and sound box thereof

Abstract

The utility model relates to the technical field of sound boxes, in particular to a sound box base structure and a sound box thereof, and the sound box base structure comprises a base, a conical ring disc and a foot pad. The base and the conical ring disc are integrally formed in an injection molding mode to form the sound guide cone, and the foot pad is installed at the bottom of the base. The sound guide cone is subjected to injection molding twice, the cone ring disc is subjected to injection molding for the first time, and the base is subjected to injection molding for the second time; the cross section of the sound guide cone is in a W shape, the sound guide cone comprises a first conical surface and a second conical surface, the first conical surface is formed on the upper surface of the conical ring disc, the second conical surface is formed on the upper surface of the base, and the first conical surface and the second conical surface are in smooth transition on the connected conical surface. The base and the conical ring disc are subjected to twice injection molding through the double-color injection mold to form the base component with an integrated structure, so that the volume of the sound cavity occupied by the sound guide cone can be effectively reduced, the effective volume of the sound cavity can meet the sound effect requirement of the sound box, and the sound effect of the sound box is improved.

Description

Technical Field

[0001] This utility model belongs to the field of speaker technology, and in particular relates to a speaker base structure and its speaker. Background Technology

[0002] Currently, miniaturized smart Bluetooth speakers are widely popular in the market, especially bottom-emitting speakers. To improve the stability and sound quality of the speakers, these speakers typically have a base and a sound guide cone at the bottom. The sound guide cone is mounted on the base, which encloses the bottom of the speaker to form a sound cavity. The sound guide cone directs the sound towards the sound outlet mesh at the bottom of the speaker.

[0003] The effective volume of the sound cavity is related to the sound quality of the speaker; a smaller sound cavity will result in a worse sound quality. In existing technology, the sound guide cone and the base are generally two separate components. After the sound guide cone is installed on the base, it occupies part of the sound cavity volume, causing the effective volume of the sound cavity to be reduced to a certain extent, resulting in poor sound quality of the speaker.

[0004] Therefore, this utility model addresses the above-mentioned technical problems by providing a speaker base structure that integrates the base and the sound guide cone into a single unit, reducing the volume occupied by the sound guide cone in the sound cavity and improving the sound effect of the speaker, thereby solving the aforementioned problems. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides a speaker base structure, including a base, a conical ring disk, and foot pads;

[0006] The base and the cone ring disc are integrally injection molded to form a sound guide cone, and the foot pads are installed at the bottom of the base;

[0007] The sound guide cone is injection molded in two stages: the first stage forms the cone ring disc, and the second stage forms the base.

[0008] The back of the conical ring disk is injection molded with a first stepped groove and a first open groove, and the base is correspondingly injection molded with a second stepped groove and a first annular protrusion. The second stepped groove engages with the first stepped groove, and the first annular protrusion engages with the first open groove.

[0009] The sound guide cone has a W-shaped cross-section and includes a first conical surface and a second conical surface. The first conical surface is formed on the upper surface of the cone ring disk, and the second conical surface is formed on the upper surface of the base. The first conical surface and the second conical surface smoothly transition on the connected conical surface.

[0010] Optionally, a second opening groove is also injection molded on the back side of the conical ring disk, and a second annular protrusion is correspondingly injection molded on the base, the second annular protrusion engaging with the second opening groove.

[0011] Optionally, a first positioning groove is injection molded on the back of the conical ring disk, and a first positioning pin is correspondingly injection molded on the base, the first positioning pin engaging with the first positioning groove.

[0012] Optionally, a plurality of clearance grooves are injection molded on the back side of the conical ring disk, and a corresponding mounting post is injection molded on the base, the mounting post engaging with the clearance grooves.

[0013] Optionally, the base has an injection-molded mounting groove on its back side, which is adapted to be installed on the foot pad.

[0014] Optionally, a second positioning pin is injection molded on the mounting groove, and a second positioning groove is provided on the foot pad. The second positioning pin is adapted to the second positioning groove to position and install the foot pad.

[0015] Optionally, the foot pad is made of silicone material and is adhesively installed in the mounting groove.

[0016] Optionally, the back of the conical ring disk is injection molded with an arc-shaped surface, the first opening groove and the second opening groove are located on the arc-shaped surface, and the opening of the first opening groove is lower than the opening of the second opening groove.

[0017] Optionally, the cone ring and the base are integrally injection molded using a two-color injection mold to form the sound guide cone.

[0018] In addition, this utility model also provides a speaker that uses the above-described speaker base structure.

[0019] The technical solution of this utility model has the following advantages or beneficial effects:

[0020] The speaker base structure provided by this utility model includes a base, a cone ring disk, and foot pads. The base and the cone ring disk are integrally injection molded to form a sound guide cone, and the foot pads are installed at the bottom of the base. The sound guide cone is injection molded in two stages: the cone ring disk is injection molded in the first stage, and the base is injection molded in the second stage. A first stepped groove and a first open groove are injection molded on the back of the cone ring disk, and a second stepped groove and a first annular protrusion are correspondingly injection molded on the base. The second stepped groove engages with the first stepped groove, and the first annular protrusion engages with the first open groove. The cross-section of the sound guide cone is W-shaped. The sound guide cone includes a first conical surface and a second conical surface. The first conical surface is formed on the upper surface of the cone ring disk, and the second conical surface is formed on the upper surface of the base. The first conical surface and the second conical surface smoothly transition on the connecting conical surface. The speaker base structure of this utility model integrates the base and the cone ring plate into a single base component through two injection molding processes using a two-color injection mold. This effectively reduces the volume occupied by the sound guide cone in the sound cavity, ensuring that the effective volume of the sound cavity meets the speaker's sound effect requirements and improving the speaker's sound performance. Attached Figure Description

[0021] Embodiments of the present invention will be described more fully with reference to the accompanying drawings. However, the accompanying drawings are for illustration and explanation only and do not constitute a limitation on the scope of the present invention.

[0022] Figure 1 This is a cross-sectional schematic diagram of the speaker base structure of this utility model;

[0023] Figure 2 This is an exploded view of the speaker base structure of this utility model;

[0024] Figure 3 This is an exploded view of the sound guide cone of this utility model;

[0025] Figure 4 This is a schematic diagram of the conical disk of this utility model;

[0026] Figure 5 This is a schematic diagram of the base structure of this utility model.

[0027] Illustration:

[0028] 1. Base; 2. Conical ring disc; 3. Foot pad; 4. Sound guide cone; 5. First stepped groove; 6. First opening groove; 7. Second stepped groove; 8. First annular protrusion; 9. First conical surface; 10. Second conical surface; 11. Second opening groove; 12. Second annular protrusion; 13. First positioning groove; 14. First positioning pin; 15. Clearance groove; 16. Mounting post; 17. Mounting groove; 18. Second positioning pin; 19. Second positioning groove; 20. Arc-shaped surface. Detailed Implementation

[0029] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many other different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0030] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0031] In the description of this utility model, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] In the description of this utility model, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0033] like Figure 1-5 As shown, the speaker base structure of this utility model is used to install on the bottom of a speaker. The speaker base structure includes a base 1, a cone ring 2, and foot pads 3. The base 1 is used to assemble on the bottom of the speaker and form a closed acoustic cavity space. The base 1 and the cone ring 2 are integrally injection molded to form a sound guide cone 4, which guides the sound to disperse from the center to the surroundings and propagate to the outside of the speaker. The foot pads 3 are installed on the bottom of the base 1 to support and enhance the appearance of the speaker, and to prevent the speaker from scratching the bottom of the speaker due to hard contact with the desktop. The integrally molded sound guide cone 4 saves more structural space, allowing more space for the speaker acoustic cavity within the same external dimensions, thus ensuring the acoustic performance of the speaker.

[0034] Specifically, in this embodiment, the speaker base structure first designs the cone ring disk 2 and the base 1 as a single sound-guiding component to achieve acoustic function, structure, and appearance requirements. The sound-guiding cone 4 can be injection molded in two stages using a two-color injection mold. The cone ring disk 2 is injection molded in the first stage, and the base 1 is injection molded in the second stage, thus achieving an integrally injection molded sound-guiding cone 4. In this embodiment, to prevent the shrinkage of the colloid during injection molding from affecting the sound-guiding function of the sound-guiding cone 4, a first stepped groove 5 is injection molded on the back of the cone ring disk 2. The front end of the first stepped groove 5 has sufficient thickness to resist injection shrinkage and prevent the sound-guiding cone 4 from failing. Furthermore, to ensure that the base 1 can be stably connected to the cone ring disk 2 during injection molding, a first open groove 6 is injection molded on the back of the cone ring disk 2. The first open groove 6 can engage with the base 1 during the second injection molding, preventing the base 1 from detaching from the cone ring disk 2. During the secondary injection molding process, a second stepped groove 7 corresponding to the first stepped groove 5 is injection molded on the base 1, and a first annular protrusion 8 corresponding to the first opening groove 6 is injection molded on the base 1. The second stepped groove 7 engages with the first stepped groove 5, and the first annular protrusion 8 engages with the first opening groove 6, thereby realizing the one-piece injection molding of the sound guide cone 4. This eliminates the assembly operation of two separate components in the traditional speaker structure, allowing more space to be reserved for the speaker acoustic cavity under the same external dimensions, improving the acoustic effect of the speaker. It also reduces the risk of appearance gap caused by the assembly of two components and saves a production assembly process, thereby improving quality and production efficiency and reducing costs.

[0035] Furthermore, in this embodiment, the cross-section of the sound guide cone 4 is W-shaped, with a conical structure in the middle. The sound guide cone 4 includes a first conical surface 9 and a second conical surface 10. The first conical surface 9 is formed on the upper surface of the cone ring disk 2, and the second conical surface 10 is formed on the upper surface of the base 1. The first conical surface 9 and the second conical surface 10 smoothly transition on the connecting conical surfaces. The speaker base structure of this utility model integrates the base 1 and the cone ring disk 2 into a single base component through two injection molding processes using a two-color injection mold. This effectively reduces the volume occupied by the sound guide cone 4 in the sound cavity, ensuring that the effective volume of the sound cavity meets the speaker's sound effect requirements and improving the speaker's sound performance.

[0036] Furthermore, in this embodiment, in order to further improve the stability of the engagement between the conical ring disk 2 and the base 1, a second opening groove 11 is also injection molded on the back side of the conical ring disk 2, and a second annular protrusion 12 is correspondingly injection molded on the base 1. The second annular protrusion 12 engages with the second opening groove 11. The anti-loosening structure of the two opening grooves corresponding to the two protrusions can effectively prevent the conical ring disk 2 from detaching from the base 1.

[0037] Furthermore, in some embodiments, a first positioning groove 13 is injection-molded on the back of the conical ring disk 2, and a corresponding first positioning pin 14 is injection-molded on the base 1, the first positioning pin 14 engaging with the first positioning groove 13. During transport or assembly of other components, especially in cases of poor fusion during injection molding of the base 1 and the conical ring disk 2, the conical ring disk 2 may detach entirely from the base 1. To avoid wasting production materials, the paired conical ring disk 2 and the base 1 can be glued together a second time. Correspondingly, the base 1 and the conical ring disk 2 are reassembled by positioning the first positioning pin 14 with the first positioning groove 13, saving production costs and improving production efficiency.

[0038] Furthermore, in this embodiment, a plurality of clearance grooves 15 are injection molded on the back side of the cone ring disk 2, and correspondingly, mounting posts 16 are injection molded on the base 1, with the mounting posts 16 engaging the clearance grooves 15. The mounting posts 16 facilitate the connection and installation of the base 1 with the middle shell or frame of the speaker, and the clearance grooves 15 can further stabilize the connection between the cone ring disk 2 and the base 1.

[0039] Furthermore, in this embodiment, to facilitate the installation of the foot pad 3, an installation groove 17 is injection molded on the back of the base 1, which is adapted to the installation of the foot pad 3. Preferably, the foot pad 3 is made of silicone material, and the foot pad 3 can be glued to the installation groove 17. The foot pad 3 can further improve the adhesion of the base structure, making the speaker placement more stable.

[0040] Furthermore, in this embodiment, in order to facilitate the positioning and installation of the foot pad 3, a second positioning pin 18 is injection molded on the mounting groove 17, and a second positioning groove 19 is provided on the foot pad 3. The second positioning pin 18 is adapted to the second positioning groove 19 to position and install the foot pad 3, which can improve assembly efficiency and production efficiency.

[0041] Furthermore, in this embodiment, to ensure that the injection molding thickness of the conical ring disk 2 and the base 1 is substantially consistent, to prevent injection shrinkage from affecting product quality, and to facilitate two injection molding operations, an arc-shaped surface 20 is injection molded on the back of the conical ring disk 2. The arc-shaped surface 20, in conjunction with the first conical surface 9, forms a spherical shell-like portion of the conical ring disk 2, ensuring that the thickness of the conical ring disk 2 remains substantially consistent at various locations. Furthermore, with the cooperation of the conical ring disk 2, the thickness of the base 1 at various locations is also substantially consistent, significantly reducing the impact of injection shrinkage and improving product quality. Preferably, the first opening groove 6 and the second opening groove 11 are located on the arc-shaped surface 20, and the opening of the first opening groove 6 is lower than the opening of the second opening groove 11. This uneven groove arrangement further enhances the bonding stability between the conical ring disk 2 and the base 1, better preventing the conical ring disk 2 from detaching from the base 1.

[0042] The speaker base structure of this utility model is installed at the bottom of the speaker. The one-piece molded sound guide cone 4 saves more structural space and can effectively reduce the volume occupied by the sound guide cone 4 in the sound cavity. This allows more space to be reserved for the speaker acoustic cavity under the same external dimensions, thus ensuring the acoustic effect of the speaker.

[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A speaker base structure, characterized in that, Includes base, conical ring plate and foot pads; The base and the cone ring disc are integrally injection molded to form a sound guide cone, and the foot pads are installed at the bottom of the base; The sound guide cone is injection molded in two stages: the first stage forms the cone ring disc, and the second stage forms the base. The back of the conical ring disk is injection molded with a first stepped groove and a first open groove, and the base is correspondingly injection molded with a second stepped groove and a first annular protrusion. The second stepped groove engages with the first stepped groove, and the first annular protrusion engages with the first open groove. The sound guide cone has a W-shaped cross-section and includes a first conical surface and a second conical surface. The first conical surface is formed on the upper surface of the cone ring disk, and the second conical surface is formed on the upper surface of the base. The first conical surface and the second conical surface smoothly transition on the connected conical surface.

2. The speaker base structure as described in claim 1, characterized in that, A second opening groove is also injection molded on the back of the conical ring disk, and a second annular protrusion is correspondingly injection molded on the base, the second annular protrusion engaging with the second opening groove.

3. The speaker base structure as described in claim 1, characterized in that, A first positioning groove is injection molded on the back of the conical ring disk, and a first positioning pin is correspondingly injection molded on the base, the first positioning pin engaging with the first positioning groove.

4. The speaker base structure as described in claim 1, characterized in that, The back of the conical ring disc is injection molded with several clearance grooves, and the base is correspondingly injection molded with mounting posts, which engage with the clearance grooves.

5. The speaker base structure as described in claim 1, characterized in that, The base has an injection-molded mounting groove on its back side, which is adapted to be installed on the foot pad.

6. The speaker base structure as described in claim 5, characterized in that, The mounting groove is injection molded with a second positioning pin, and the foot pad is provided with a second positioning groove. The second positioning pin is adapted to the second positioning groove to position and install the foot pad.

7. The speaker base structure as described in claim 6, characterized in that, The foot pad is made of silicone material and is adhesively installed in the mounting groove.

8. The speaker base structure as described in claim 2, characterized in that, The back of the conical ring disk is injection molded with an arc-shaped surface, the first opening groove and the second opening groove are located on the arc-shaped surface, and the opening of the first opening groove is lower than the opening of the second opening groove.

9. The speaker base structure as described in claim 1, characterized in that, The cone ring and the base are integrally injection molded using a two-color injection mold to form the sound guide cone.

10. A speaker, characterized in that, Includes the speaker base structure as described in any one of claims 1-9.

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