Folding miniature loudspeaker

Abstract

The utility model discloses a folding type miniature loudspeaker, which comprises a first sound production unit, a second sound production unit and a flexible connecting piece, and two ends of the flexible connecting piece are respectively connected with the first sound production unit and the second sound production unit. Wherein the first sounding unit is internally provided with a first cavity, the second sounding unit is internally provided with a second cavity, the flexible connecting piece is internally provided with a through cavity, and the through cavity is respectively communicated with the first cavity and the second cavity. The folding type miniature loudspeaker can be matched with a folding screen mobile phone, namely can be folded or unfolded together with the folding screen mobile phone, and can save the space occupied by the miniature loudspeaker for the mobile phone.

Description

Technical Field

[0001] The utility model relates to the technical field of electroacoustic transducers, in particular to a foldable micro loudspeaker. Background Art

[0002] With the rapid development of portable electronic devices, foldable screen phones have evolved from a concept into reality, gradually becoming a part of the smartphone market. Micro speakers, an essential component of foldable screen phones, are responsible for converting electrical signals into acoustic signals, enabling audio playback functions such as music, video audio, and call audio. However, existing micro speakers are not well adapted to the folding of foldable screen phones. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a foldable micro speaker to solve the problem that the existing micro speakers cannot be well adapted to foldable screen mobile phones.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a foldable micro speaker, which includes a first sound unit, a second sound unit and a flexible connecting member, and the two ends of the flexible connecting member are respectively connected to the first sound unit and the second sound unit; wherein, a first cavity is provided in the first sound unit, a second cavity is provided in the second sound unit, a through cavity is provided in the flexible connecting member, and the through cavity is respectively connected to the first cavity and the second cavity.

[0005] Furthermore, in the foldable micro-speaker described in the present invention, the first sound-emitting unit is provided with a first connecting portion, the first connecting portion is provided with a first connecting hole extending along the width direction of the foldable micro-speaker, and the second sound-emitting unit is provided with a second connecting portion, the second connecting portion is provided with a second connecting hole extending along the width direction of the foldable micro-speaker; wherein the first connecting hole and the second connecting hole are coaxially arranged and interconnected.

[0006] Furthermore, the foldable micro-speaker of the present invention further includes a rotating shaft, which extends along the width direction of the foldable micro-speaker, and at least a portion of the rotating shaft passes through the first connecting hole and the second connecting hole.

[0007] Furthermore, in the foldable micro speaker described in the present invention, third connection holes are respectively provided at both ends of the flexible connection member, the third connection hole is coaxially arranged with the first connection hole and the second connection hole, and at least part of the rotating shaft is arranged in the third connection hole.

[0008] Furthermore, in the foldable micro-speaker described in the present invention, the first sound-emitting unit includes a first yoke, a first basin and a first diaphragm, the first diaphragm is arranged above the first basin, and the first yoke is arranged below the first basin; wherein, the first diaphragm, the first basin and the first yoke together form the first cavity.

[0009] Furthermore, in the foldable micro-speaker described in the present invention, the first sound-emitting unit further includes a voice coil located in the first cavity, and the voice coil is connected to the first diaphragm.

[0010] Furthermore, in the foldable micro-speaker described in the present invention, the first sound-emitting unit further includes a magnet and a washer located in the first cavity, the magnet is arranged on the first yoke, and the washer is arranged on the magnet.

[0011] Furthermore, in the foldable micro-speaker described in the present invention, the flexible connecting member is provided with a protrusion, and the protrusion conflicts with the first basin frame.

[0012] Furthermore, in the foldable micro-speaker described in the present invention, the flexible connecting member is made of silicone.

[0013] Furthermore, the foldable micro-speaker of the present invention includes two first sound-emitting units and two flexible connectors, and the two first sound-emitting units are respectively connected to two sides of the second sound-emitting unit through the flexible connectors.

[0014] The beneficial effect of the present invention is that the foldable micro-speaker of the present invention includes a plurality of sound-emitting units, such as two first sound-emitting units and a second sound-emitting unit. Adjacent sound-emitting units can be connected by a flexible connector. Since the flexible connector has corresponding elasticity and flexibility, the flexible connector itself can be folded and bent to ensure that adjacent sound-emitting units in the foldable micro-speaker can rotate relative to each other, thereby making the foldable micro-speaker suitable for foldable screen mobile phones, that is, it can be folded or unfolded together with the foldable screen mobile phone. In addition, it should be noted that in actual application, the first sound-emitting unit is an active sound-emitting unit, the second sound-emitting unit is a passive radiation unit, and the second sound-emitting unit is arranged at the folding area of the foldable screen mobile phone. After the foldable screen mobile phone is unfolded, higher acoustic performance can be obtained through the second sound-emitting unit (such as enhancing and expanding the low-frequency sound from the first sound-emitting unit), so that the acoustic performance of the foldable micro-speaker meets the preset requirements. It should be noted that the present invention obtains preset acoustic performance by setting a corresponding second sound unit in the folding area of the mobile phone. Compared with increasing the volume of the corresponding components of the first sound unit (such as the diaphragm), the present invention can save the space occupied by the micro speaker in the mobile phone. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the foldable micro-speaker according to the present invention in one embodiment at one viewing angle;

[0016] Figure 2 This is a schematic structural diagram of the foldable micro-speaker according to the present invention in another perspective under one embodiment;

[0017] Figure 3 This is an exploded view of the structure of the foldable micro speaker according to the present invention from one viewing angle in one embodiment;

[0018] Figure 4 for Figure 3 A partial enlarged view of point A of the folded microspeaker shown;

[0019] Figure 5 for Figure 3 A partial enlarged view of point B of the folded microspeaker shown;

[0020] Figure 6 This is an exploded view of the foldable micro speaker of the present invention from one perspective in one embodiment with part of the structure hidden;

[0021] Figure 7 This is a schematic structural diagram of the flexible connector in the foldable micro-speaker of the present invention.

[0022] Description of labels:

[0023] 1. First sound unit; 11. First cavity; 12. First connecting portion; 13. First connecting hole; 14. First yoke; 15. First basin frame; 16. First diaphragm; 17. Voice coil; 18. Magnet; 19. Washer;

[0024] 2. Flexible connector; 21. Through cavity; 22. Third connecting hole; 23. Protrusion; 24. Bayonet;

[0025] 3. Second sound unit; 31. Second cavity; 32. Second connecting portion; 33. Second connecting hole; 34. Second yoke; 35. Second basin frame; 36. Second diaphragm;

[0026] 4. Rotating shaft. DETAILED DESCRIPTION

[0027] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

[0028] Please refer to Figures 1 to 7The utility model relates to a foldable micro-speaker, which includes a first sound-emitting unit 1, a second sound-emitting unit 3 and a flexible connector 2, wherein the two ends of the flexible connector are respectively connected to the first sound-emitting unit and the second sound-emitting unit; wherein, a first cavity 11 is provided in the first sound-emitting unit, a second cavity 31 is provided in the second sound-emitting unit, and a through cavity 21 is provided in the flexible connector, and the through cavity is respectively connected to the first cavity and the second cavity.

[0029] From the above description, it can be seen that the beneficial effect of the present invention is that the foldable micro-speaker of the present invention includes multiple sound-emitting units, such as two first sound-emitting units 1 and a second sound-emitting unit 3. Adjacent sound-emitting units can be connected by a flexible connector 2. Since the flexible connector has corresponding elasticity and flexibility, the flexible connector 2 itself can be folded and bent to ensure that adjacent sound-emitting units in the foldable micro-speaker can rotate relative to each other, so that the foldable micro-speaker using the new type can be adapted to foldable screen mobile phones, that is, it can be folded or unfolded together with the foldable screen mobile phone. In addition, it should be noted that in actual application, the first sound-emitting unit 1 is an active sound-emitting unit, the second sound-emitting unit 3 is a passive radiation unit, and the second sound-emitting unit 3 is arranged in the folding area of the foldable screen mobile phone. After the foldable screen mobile phone is unfolded, higher acoustic performance can be obtained through the second sound-emitting unit 3 (such as enhancing and expanding the low-frequency sound from the first sound-emitting unit 1), so that the acoustic performance of the foldable micro-speaker meets the preset requirements. It should be noted that the present invention obtains preset acoustic performance by setting a corresponding second sound unit 3 in the folding area of the mobile phone. Compared with increasing the volume of the corresponding components of the first sound unit 1 (such as the diaphragm), the present invention can save the space occupied by the micro speaker in the mobile phone.

[0030] Furthermore, in the foldable micro-speaker described in the present invention, the first sound-emitting unit 1 is provided with a first connecting portion 12, and the first connecting portion 12 is provided with a first connecting hole 13 extending along the width direction of the foldable micro-speaker; the second sound-emitting unit 3 is provided with a second connecting portion 32, and the second connecting portion 32 is provided with a second connecting hole 33 extending along the width direction of the foldable micro-speaker; wherein the first connecting hole 13 and the second connecting hole 33 are coaxially arranged and interconnected.

[0031] Furthermore, the foldable micro-speaker of the present invention further includes a rotating shaft 4, which extends along the horizontal width direction of the foldable micro-speaker, and at least a portion of the rotating shaft is arranged in the first connecting hole and the second connecting hole.

[0032] In this embodiment, it should be noted that the adjacent sound-emitting units are connected in a relatively rotatable manner, that is, the first sound-emitting unit and the second sound-emitting unit are connected in a relatively rotatable manner. To this end, the present invention can provide a protruding first connecting portion on the first sound-emitting unit, and a first connecting hole on the first connecting portion. At the same time, a protruding second connecting portion is provided on the second sound-emitting unit, and a second connecting hole is provided on the second connecting portion that is coaxial with the first connecting hole and interconnected with the first connecting hole. The first connecting hole and the second connecting hole are used to allow the passage of a rotating shaft. As can be seen from the above description, by providing corresponding first connecting holes 13 and second connecting holes 33, and disposing the rotating shaft 4 in the first connecting holes 13 and the second connecting holes 33, a sound-emitting unit and a second sound-emitting unit 3 can be connected in a relatively rotatable manner via the rotating shaft 4. In other words, the first sound-emitting unit and the second sound-emitting unit can rotate relative to each other around the rotating shaft, so that the first sound-emitting unit and the second sound-emitting unit can be in a folded or unfolded state.

[0033] Furthermore, in the foldable micro-speaker described in the present invention, a third connection hole 22 is respectively provided at both ends of the flexible connecting member 2, the third connection hole 22 is coaxially arranged with the first connection hole 13 and the second connection hole, and at least part of the rotating shaft 4 is arranged in the third connection hole 22.

[0034] As can be seen from the above description, by providing the third connection hole 22 on the flexible connection member 2 and disposing at least part of the rotating shaft 4 in the third connection hole 22 , the flexible connection member 2 is connected to the first sound unit 1 and the second sound unit 3 .

[0035] Furthermore, in the foldable micro-speaker described in the present invention, the first sound-emitting unit 1 includes a first yoke 14, a first basin 15 and a first diaphragm 16, the first diaphragm 16 is arranged above the first basin 15, and the first yoke 14 is arranged below the first basin 15; wherein, the first diaphragm 16, the first basin 15 and the first yoke 14 together form the first cavity 11.

[0036] Furthermore, in the foldable micro-speaker of the present invention, the first sound-emitting unit 1 further includes a voice coil 17 located in the first cavity 11 , and the voice coil 17 is connected to the first diaphragm 16 .

[0037] Furthermore, in the foldable micro-speaker described in the present invention, the first sound unit 1 also includes a magnet 18 and a washer 19 located in the first cavity 11 . The magnet 18 is arranged on the first yoke 14 , and the washer 19 is arranged on the magnet 18 .

[0038] As can be seen from the above description, by arranging the first diaphragm 16, voice coil 17, magnet 18 and other components in the first sound unit 1, the first sound unit 1 can realize the conversion of electrical signals into sound signals to generate corresponding sounds.

[0039] Furthermore, in the foldable micro-speaker of the present invention, the flexible connecting member 2 is provided with a protrusion 23 , and the protrusion 23 is in conflict with the first basin frame 15 .

[0040] As can be seen from the above description, by providing the protrusion 23 on the flexible connector 2 and making at least a portion of the protrusion 23 contact the first basin frame 15 , the reliability of the connection between the flexible connector 2 and the first sound unit 1 is ensured.

[0041] Furthermore, in the foldable micro-speaker described in the present invention, the flexible connecting member 2 is made of silicone.

[0042] In practical applications, the flexible connector 2 can be made of any material with appropriate elasticity and flexibility, such as silicone, without limitation. By making the flexible connector 2 a material with elasticity and flexibility, such as silicone, the flexible connector 2 can be folded and bent, thereby ensuring that the foldable micro speaker can be effectively folded or unfolded.

[0043] Furthermore, the foldable micro-speaker of the present invention includes two first sound-emitting units 1 and two flexible connectors 2 , and the two first sound-emitting units 1 are connected to two sides of the second sound-emitting unit 3 through the flexible connectors 2 .

[0044] In actual use, the two first sound units 1 are respectively arranged in the two screens of the folding screen mobile phone, and the second sound unit 3 is arranged in the folding area connecting the two screens. The first sound unit 1 and the second sound unit 3 are connected by a flexible connector 2, so that the foldable micro speaker of the utility model can be folded or unfolded along with the folding screen mobile phone.

[0045] Please refer to Figures 1 to 7 The first embodiment of the present invention is a foldable micro speaker, which includes two first sound-emitting units 1, a second sound-emitting unit 3 and two flexible connectors 2. Figure 1 as well as Figure 2 As shown, in the horizontal length direction of the foldable micro speaker, the second sound unit 3 is set in the middle of the two first sound units 1, and the second sound unit 3 is connected to the first sound unit 1 through a flexible connector 2. That is, the foldable micro speaker in the horizontal length direction is the second sound unit 3, the flexible connector 2, and the first sound unit 1 from the middle to the two sides. It should be noted that, as Figure 6 As shown, the first sound unit 1 is provided with a first cavity 11, the second sound unit 3 is provided with a second cavity 31, and the flexible connector 2 is provided with a through cavity 21, which is connected to the first cavity 11 and the second cavity 31 respectively. Figures 1 to 7 The first sound unit 1 , the second sound unit 3 and the flexible connector 2 are described in detail.

[0046] In this embodiment, if Figure 3 、 Figure 6 As shown, the first sound unit 1 comprises a first yoke 14, a first frame 15, and a first diaphragm 16. The first yoke 14 is disposed below the first frame 15, and the first diaphragm 16 is disposed above the first frame 15. The first frame 15 is shaped like a rectangular ring with one side missing, similar to a U-shaped structure. The opening of the U-shaped first frame 15 faces the second sound unit 3, and the yoke is shaped like a rectangular plate. It should be noted that since the first diaphragm 16 and the first yoke 14 are disposed above and below the first frame 15, respectively, the first yoke 14, the first frame 15, and the first diaphragm 16 together form a first cavity 11. Within this first cavity 11, a voice coil 17, a magnet 18, and a washer 19 are disposed. The voice coil 17 is connected to the first diaphragm 16 and is located vertically above the first yoke 14. There is a certain vertical distance between the voice coil 17 and the first yoke 14. The magnetic steel 18 is disposed on the first yoke 14, and at least a portion of the magnetic steel 18 extends into the area formed by the voice coil 17. The washer 19 is disposed on the magnetic steel 18 and is located in the area formed by the voice coil 17.

[0047] In this embodiment, the second sound-emitting unit 3 is a passive radiation unit (also called a passive radiator or a passive speaker), that is, the second sound-emitting unit 3 is passively radiated by the two first sound-emitting units 1, and can be understood as a false speaker. The second sound-emitting unit 3 includes a second yoke 34, a second basin 35, and a second diaphragm 36, wherein the second diaphragm 36 is arranged above the second basin 35, and the second yoke 34 is arranged below the second basin 35, and the second yoke 34, the second basin 35 and the second diaphragm 36 are combined to form a second cavity 31. It should be noted that the second basin 35 is composed of two parallel basin plates, and there is a certain distance between the two basin plates.

[0048] In this embodiment, if Figure 7As shown, the shape and structure of the flexible connector 2 is similar to a hollow rectangular parallelepiped structure, that is, a through cavity 21 is provided in the flexible connector 2, which runs through the flexible connector 2. The through cavity 21 extends along the horizontal width direction of the flexible connector 2. The through cavity 21 is located between the first cavity 11 and the second cavity 31, and connects the first cavity 11 and the second cavity 31. A third connection hole 22 is provided on both sides of the flexible connector 2 extending in the vertical height direction. In addition, as shown in FIG. Figure 4 as well as Figure 5 As shown, a first connecting portion 12 is provided on each of the two side edges extending in the horizontal length direction of the foldable micro-speaker on the first frame 15. The first connecting portion 12 extends toward the second sound unit 3 and is provided with a circular first connecting hole 13. Similarly, a second connecting portion 32 is provided at both ends of each frame plate of the second frame 35. The second connecting portion 32 extends toward the adjacent first sound unit 1 and is provided with a circular second connecting hole 33. It should be noted that the first connecting hole 13, the second connecting hole 33, and the third connecting hole 22 have the same radius, and the first connecting hole 13, the second connecting hole 33, and the third connecting hole 22 are interconnected and coaxially arranged. The third connecting block is located on the inner side of the first connecting hole 13, and the second connecting hole 33 is located on the outer layer of the first connecting hole 13. In practice, the rotating shaft 4 is disposed in the first connecting hole 13, the second connecting hole 33, and the third connecting hole 22. That is, the rotating shaft 4 sequentially passes through the second connecting hole 33, the first connecting hole 13, and the third connecting hole 22, thereby connecting the second connecting portion 32, the first connecting portion 12, and the flexible connector 2, so that the corresponding components can rotate relative to each other. It should be noted that in this embodiment, there are a total of four rotating shafts, each of which is cylindrical in shape and extends along the horizontal width of the first sound unit / flexible connector.

[0049] In addition, the flexible connector 2 is made of a material with elasticity and flexibility, such as silicone. Figure 7 As shown, two protrusions 23 are provided at both ends of the flexible connector 2, and the protrusions 23 are provided with a bayonet 24, which is stepped. Correspondingly, at least a portion of the first side of the first basin frame 15 extending in the horizontal length direction is adapted to fit the shape of the stepped bayonet 24. Figure 7As shown, the partial cross-section of the first side near one end of the second sound-emitting unit 3 is stepped. Similarly, in the second sound-emitting unit 3, the partial cross-section of the basin frame plate is also stepped. Each end of the flexible connector 2 is provided with two stepped bayonet holes 24, one of which conflicts with the first side, and the other bayonet hole 24 conflicts with the basin frame plate. It should be noted that in the above-mentioned horizontal length direction, at least a part of the flexible connector 2 is arranged on the first yoke 14 and conflicts with the first yoke 14, and at least a part of the flexible connector 2 is arranged on the second yoke 34 and conflicts with the above-mentioned second yoke 34.

[0050] In summary, the foldable micro speaker provided by the present invention can be adapted to be folded together with a foldable screen mobile phone, saving the micro speaker from occupying space in the mobile phone.

[0051] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A foldable micro speaker, characterized in that: It includes a first sound-emitting unit, a second sound-emitting unit and a flexible connector, and the two ends of the flexible connector are respectively connected to the first sound-emitting unit and the second sound-emitting unit; wherein, a first cavity is provided in the first sound-emitting unit, a second cavity is provided in the second sound-emitting unit, and a through cavity is provided in the flexible connector, and the through cavity is respectively connected to the first cavity and the second cavity.

2. The foldable micro speaker according to claim 1, wherein: The first sound-emitting unit is provided with a first connecting portion, which is provided with a first connecting hole extending along the width direction of the foldable micro-speaker; the second sound-emitting unit is provided with a second connecting portion, which is provided with a second connecting hole extending along the width direction of the foldable micro-speaker; wherein the first connecting hole and the second connecting hole are coaxially arranged and interconnected.

3. The foldable micro speaker according to claim 2, wherein: The invention also includes a rotating shaft, which extends along the width direction of the foldable micro speaker, and at least a part of the rotating shaft is arranged in the first connecting hole and the second connecting hole.

4. The foldable micro speaker according to claim 3, wherein: The flexible connecting member has third connecting holes at both ends, the third connecting holes are coaxially arranged with the first connecting hole and the second connecting hole, and at least a portion of the rotating shaft is arranged in the third connecting hole.

5. The foldable micro speaker according to claim 1, wherein: The first sound unit includes a first yoke, a first basin and a first diaphragm, the first diaphragm is arranged above the first basin, and the first yoke is arranged below the first basin; wherein the first diaphragm, the first basin and the first yoke together form the first cavity.

6. The foldable micro speaker according to claim 5, wherein: The first sound-emitting unit further includes a voice coil located in the first cavity, and the voice coil is connected to the first diaphragm.

7. The foldable micro speaker according to claim 5, wherein: The first sound-emitting unit further includes a magnetic steel and a washer located in the first cavity. The magnetic steel is arranged on the first yoke, and the washer is arranged on the magnetic steel.

8. The foldable micro speaker according to claim 5, wherein: The flexible connection piece is provided with a protrusion, and the protrusion is in conflict with the first basin frame.

9. The foldable microspeaker according to claim 1, wherein: The flexible connector is made of silicone.

10. The foldable micro speaker according to claim 1, wherein: It comprises two first sound-emitting units and two flexible connectors, wherein the two first sound-emitting units are respectively connected to two sides of the second sound-emitting unit through the flexible connectors.

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