Bone and gas conduction composite loudspeaker

Abstract

The utility model discloses a bone and gas conduction composite horn, which comprises a bone conduction horn and a gas conduction horn, the bone conduction loudspeaker comprises a first support, a yoke, a vibration reed, a first magnet, a first voice coil, a first washer and a first backing ring. The vibration reed is integrally formed on the first support in an injection molding mode and located on the first backing ring. The first magnet drives the yoke and the vibration reed to vibrate up and down in the first support. The air conduction loudspeaker comprises a second support, a U-shaped cup, a vibrating diaphragm, a second voice coil, a second magnet and a second washer. When in use, the air conduction loudspeaker and the bone conduction loudspeaker can be mutually switched, and have the advantages of both the air conduction loudspeaker and the bone conduction loudspeaker. And secondly, the yoke and the U-shaped cup are designed in a staggered manner, the internal spaces of the first bracket and the second bracket are fully utilized, the vertical height is not increased, and the product can be thinned.

Description

Technical Field

[0001] The utility model relates to the technology of the loudspeaker field, in particular to a bone-air conduction composite loudspeaker. Background Art

[0002] A microphone is a transducer device that converts electrical signals into sound signals. Common sound conduction methods include air conduction and bone conduction. Air conduction generates sound through the vibration of the diaphragm, and then transmits the sound to the user's ear through air transmission. Bone conduction uses the human skull, bony labyrinth, inner ear lymph, spiral organ, and auditory center to transmit sound waves.

[0003] Bone conduction is a sound conduction method, which converts sound into mechanical vibrations of different frequencies and transmits sound waves through the human skull, bony labyrinth, inner ear lymph, spiral organ, auditory nerve, and auditory center; air conduction is also an air conduction method, which converts sound into mechanical vibrations of different frequencies and transmits sound waves through the surrounding air. The speakers in the prior art are either single air conduction speakers or single bone conduction speakers, and therefore cannot have the advantages of both speakers at the same time.

[0004] Later, a bone-air conduction two-in-one speaker appeared on the market, which refers to a speaker that combines an air conduction speaker and a bone conduction speaker. This bone-air conduction two-in-one speaker is usually a simple piece together of an air conduction speaker and a bone conduction speaker. Affected by the components of the air conduction speaker and the bone conduction speaker themselves, the simple piece together results in a large overall structure size and low space utilization; secondly, the gaps between the various components inside the speaker are relatively large, and the internal parts are prone to displacement, causing speaker failure and reducing the service life of the speaker.

[0005] Therefore, it is necessary to study a new technical solution to solve the above problems. Utility Model Content

[0006] In view of this, the present invention aims to solve the deficiencies in the prior art, and its main purpose is to provide a bone-to-air conduction composite speaker. Through the structural design and coordination of the bone conduction speaker and the air conduction speaker, and the use of the yoke and U-cup staggered design, the problem of large overall structural size and low space utilization of the traditional bone-to-air conduction two-in-one speaker is effectively solved.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A bone-air conduction composite speaker, comprising a bone conduction speaker and an air conduction speaker;

[0009] The bone conduction speaker includes a first bracket, a yoke, a vibration reed, a first magnet, a first voice coil, a first washer and a first gasket; the first magnet is fixed in the yoke, and the first gasket is installed on the yoke; the outer ring of the vibration reed is integrally injection-molded on the first bracket, and the inner ring of the vibration reed is fixed on the first gasket; the first washer is stacked on a side of the first magnet away from the fixed yoke; the first voice coil is sleeved outside the first magnet; the first magnet drives the yoke and the vibration reed to vibrate up and down in the first bracket;

[0010] The air conduction speaker includes a second bracket, a U cup, a diaphragm, a second voice coil, a second magnet, and a second washer; the second bracket is located on the front end surface of the first bracket; the U cup is installed in the second bracket and is offset above the yoke; the diaphragm is arranged at the opening of the second bracket and fixed on the second bracket; the second magnet is installed in the U cup, one end surface of the second voice coil is connected to the diaphragm, and the other end surface extends between the second magnet and the U cup; the second washer is stacked on one surface of the second magnet.

[0011] As a preferred embodiment, the yoke includes a first ring wall, a second ring wall and a third ring wall, and the first ring wall, the second ring wall and the third ring wall form a accommodating cavity that passes through from top to bottom, and the first magnet, the first washer and the first voice coil are located in the accommodating cavity; the first gasket ring is sleeved on the outside of the first ring wall, and the second gasket ring is also sleeved on the outside of the first ring wall, so that: the first gasket ring and the second gasket ring respectively abut against the upper and lower surfaces of the vibration reed.

[0012] As a preferred embodiment, the bone conduction speaker also includes a back cover, which is mounted on the lower end surface of the first bracket to form a cavity, and the yoke, the vibration reed, the first magnet, the first voice coil, the first washer and the first gasket are accommodated in the cavity, and an annular mounting position is provided on the back cover, and a first annular gap is formed between the inner wall surface of the third ring wall and the outer wall surface of the first magnet, and an end surface of the first voice coil close to the vibration reed is at least partially located in the first annular gap, and an end surface of the first voice coil away from the vibration reed is at least partially located at the annular mounting position.

[0013] As a preferred solution, the back cover is further provided with an air leakage hole connected to the cavity, and the air leakage hole is used to discharge the air pressure generated by the bone conduction speaker.

[0014] As a preferred embodiment, the second bracket has an outer step portion and an inner step portion, the outer step portion is located on the side of the inner step portion; the diaphragm has an outer ring portion, and the outer ring portion is limited by the outer step portion; the inner step portion is provided with an air hole, and the air hole is connected to the cavity.

[0015] As a preferred embodiment, the second bracket has a through cavity, and an annular positioning groove is recessed inwardly at the through cavity; the outside of the U cup has an annular positioning portion for matching with the annular positioning groove, and the U cup is installed in the through cavity through the cooperation of the annular positioning portion and the annular positioning groove, and part of the U cup extends into the accommodating cavity.

[0016] As a preferred embodiment, the yoke is a folded step type, the accommodating cavity has a first cavity and a second cavity that are connected, the U cup is offset above the first cavity, and the U cup is at least partially located in the first cavity; the first magnet, the first washer and the first voice coil are at least partially located in the second cavity.

[0017] As a preferred solution, the first washer and the first magnet are both hollow structures.

[0018] As a preferred embodiment, the air conduction horn also includes a soldering pad for current to flow in and out, the soldering pad includes a soldering piece portion for connecting to the lead of the second voice coil and a conductive portion for electrically connecting to an external element, and the conductive portion extends out of the second bracket.

[0019] As a preferred solution, the back cover is further provided with a connecting hole, the connecting hole is located beside the air leakage hole, and the connecting hole is connected to the cavity.

[0020] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that it mainly adopts the structural design and coordination of the bone conduction speaker and the air conduction speaker. When in use, the two can be switched with each other, and at the same time have the advantages of both the air conduction speaker and the bone conduction speaker.

[0021] Secondly, the yoke and the U cup are staggered, which fully utilizes the internal space of the first bracket and the second bracket without increasing the vertical height, and can make the product thinner; it leaves enough space for the battery or its components in the headset in subsequent applications, and facilitates the stacking design of the headset;

[0022] Next is the design of the first gasket. One end surface of the yoke and the other end surface of the vibration reed form a vibration space for the vibration reed to vibrate up and down, thereby preventing the vibration reed from hitting the yoke.

[0023] In addition, the vibration reed and the first bracket are integrally injection molded, so that a connection can be formed without overlapping and without opening a slot on the first bracket. At the same time, it simplifies the structure of the first bracket and improves the assembly efficiency of the vibration reed.

[0024] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional diagram of an embodiment of the utility model;

[0026] Figure 2 It is a cross-sectional view of an embodiment of the utility model;

[0027] Figure 3 It is an exploded view of an embodiment of the utility model;

[0028] Figure 4 It is a structural diagram of the second bracket of the embodiment of the utility model;

[0029] Figure 5 yes Figure 2 A partial enlarged view of the middle A;

[0030] Figure 6 It is a cross-sectional view of the yoke of the embodiment of the utility model.

[0031] Description of the accompanying drawings:

[0032] 10. Bone conduction speaker 11. First bracket

[0033] 12. Yoke 13. Vibrating reed

[0034] 14. First magnet 15. First voice coil

[0035] 16. First washer 17. First gasket

[0036] 18. Second gasket 19. Back cover

[0037] 121. first ring wall 122. second ring wall

[0038] 123. third ring wall 124. accommodating cavity

[0039] 125, first annular gap 1241, first cavity

[0040] 1242, Second Cavity

[0041] 191. Vent hole 192. Connection hole

[0042] 193, cavity 194, annular mounting position

[0043] 20. Air conduction speaker 21. Second bracket

[0044] 211, outer step portion 212, inner step portion

[0045] 213, air hole 214, through cavity

[0046] 215, annular positioning groove 22, U cup

[0047] 221, annular positioning portion 23, diaphragm

[0048] 24. Second voice coil 25. Second magnet

[0049] 26. Second washer 27. Second annular gap

[0050] 28. pad 231, outer ring portion. DETAILED DESCRIPTION

[0051] Please refer to Figures 1 to 6 As shown, it shows the specific structure of an embodiment of the utility model.

[0052] In the description of the present invention, it should be noted that directional words such as the terms "up", "down", "front", "back", "left", "right", etc., which indicate directions and positional relationships, are based on the directions or positional relationships shown in the drawings or during normal wearing and use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0053] A bone-air conduction composite speaker, characterized by comprising a bone conduction speaker 10 and an air conduction speaker 20.

[0054] The bone conduction speaker 10 includes a first bracket 11, a yoke 12, a vibration reed 13, a first magnet 14, a first voice coil 15, a first washer 16 and a first gasket 17; the first magnet 14 is fixed in the yoke 12, and the first gasket 17 is installed on the yoke 12; the outer ring of the vibration reed 13 is integrally injection-molded on the first bracket 11, and the inner ring of the vibration reed 13 is fixed on the first gasket 17; the first washer 16 is stacked on the side of the first magnet 14 away from the fixed yoke 12; the first voice coil 15 is sleeved outside the first magnet 14; the first magnet 14 drives the yoke 12 and the vibration reed 13 to vibrate up and down in the first bracket 11; preferably, the first washer 16 and the first magnet 14 are both hollow structures. Wherein, the first gasket 17 is bonded to the outside of the yoke 12 by glue.

[0055] Preferably, the yoke 12 includes a first ring wall 121, a second ring wall 122 and a third ring wall 123, and the first ring wall 121, the second ring wall 122 and the third ring wall 123 form an accommodating cavity 124 that passes through from top to bottom, and the accommodating cavity 124 is step-shaped; the first magnet 14, the first washer 16 and the first voice coil 15 are located in the accommodating cavity 124; the first gasket 17 is sleeved on the outside of the first ring wall 121, and the second gasket 18 is also sleeved on the outside of the first ring wall 121, so that: the first gasket 17 and the second gasket 18 respectively abut against the upper and lower surfaces of the vibration reed 13.

[0056] Preferably, the yoke 12 is a folded-line step type, the accommodating cavity 124 has a first cavity 1241 and a second cavity 1242 that are connected, the U cup 22 is staggered above the first cavity 1241, and the U cup 22 is at least partially located in the first cavity 1241, which does not increase the vertical height and can make the overall product thinner. Specifically, the first magnet 14, the first washer 16, and the first voice coil 15 are at least partially located in the second cavity 1242.

[0057] Preferably, the bone conduction speaker 10 also includes a back cover 19, which is installed on the lower end surface of the first bracket 11 to enclose a cavity 193, and the yoke 12, the vibration reed 13, the first magnet 14, the first voice coil 15, the first washer 16 and the first gasket 17 are accommodated in the cavity 193. An annular mounting position 194 is provided on the back cover 19, and a first annular gap 125 is formed between the inner wall surface of the third ring wall 123 and the outer wall surface of the first magnet 14. An end surface of the first voice coil 15 close to the vibration reed 13 is at least partially located in the first annular gap 125, and an end surface of the first voice coil 15 away from the vibration reed 13 is at least partially located at the annular mounting position 194.

[0058] Preferably, the back cover 19 is also provided with an air leakage hole 191 connected to the cavity 193, and the air leakage hole 191 is used to discharge the air pressure generated by the bone conduction speaker 10. Preferably, the back cover 19 is also provided with a connecting hole 192, which is located beside the air leakage hole 191, connected to the cavity 193, and used for subsequent embedding of copper nails.

[0059] Preferably, the air conduction horn 20 also includes a solder pad 28 for current to flow in and out, the solder pad 28 includes a solder piece portion for connecting to the lead of the second voice coil 24 and a conductive portion for electrically connecting to an external element, and the conductive portion extends out of the second bracket 21.

[0060] The air conduction speaker 20 includes a second bracket 21, a U cup 22, a diaphragm 23, a second voice coil 24, a second magnet 25, and a second washer 26; the second bracket 21 is located on the front end surface of the first bracket 11; the U cup 22 is installed in the second bracket 21 and is offset above the yoke 12; the diaphragm 23 is arranged at the opening of the second bracket 21 and fixed on the second bracket 21; the second magnet 25 is installed in the U cup 22, one end surface of the second voice coil 24 is connected to the diaphragm 23, and the other end surface extends between the second magnet 25 and the U cup 22; the second washer 26 is stacked on one surface of the second magnet 25.

[0061] Preferably, the second bracket 21 has an outer step portion 211 and an inner step portion 212, and the outer step portion 211 is located beside the inner step portion 212; the diaphragm 23 has an outer ring portion 231, and the outer ring portion 231 is limited by the outer step portion 211; the inner step portion 212 is provided with an air hole 213, and the air hole 213 is connected to the cavity 193.

[0062] Preferably, the second bracket 21 has a through cavity 214, and an annular positioning groove 215 is recessed inwardly from the through cavity 214; the outside of the U cup 22 has an annular positioning portion 221 for matching with the annular positioning groove 215, and the U cup 22 is installed in the through cavity 214 through the cooperation between the annular positioning portion 221 and the annular positioning groove 215, and part of the U cup 22 extends into the accommodating cavity 124.

[0063] Preferably, a second annular gap 27 is formed between the outer wall surface of the second magnet 25 and the inner wall surface of the U cup 22 ; and the other end surface of the second voice coil 24 away from the diaphragm 23 is at least partially located in the second annular gap 27 .

[0064] The design focus of the utility model is that it mainly uses the structural design and coordination of the bone conduction speaker and the air conduction speaker. When in use, the two can be switched to each other, and at the same time have the advantages of both the air conduction speaker and the bone conduction speaker;

[0065] Secondly, the yoke and the U cup are staggered, which fully utilizes the internal space of the first bracket and the second bracket without increasing the vertical height, and can make the product thinner; it leaves enough space for the battery or its components in the headset in subsequent applications, and facilitates the stacking design of the headset;

[0066] Next is the design of the first gasket. One end surface of the yoke and the other end surface of the vibration reed form a vibration space for the vibration reed to vibrate up and down, thereby preventing the vibration reed from hitting the yoke.

[0067] In addition, the vibration reed and the first bracket are integrally injection molded, so that a connection can be formed without overlapping and without opening a slot on the first bracket. At the same time, it simplifies the structure of the first bracket and improves the assembly efficiency of the vibration reed.

[0068] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A bone-air conduction composite speaker, characterized in that: Including bone conduction speakers and air conduction speakers; The bone conduction speaker includes a first bracket, a yoke, a vibration reed, a first magnet, a first voice coil, a first washer and a first gasket; the first magnet is fixed in the yoke, and the first gasket is installed on the yoke; the outer ring of the vibration reed is integrally injection-molded on the first bracket, and the inner ring of the vibration reed is fixed on the first gasket; the first washer is stacked on a side of the first magnet away from the fixed yoke; the first voice coil is sleeved outside the first magnet; the first magnet drives the yoke and the vibration reed to vibrate up and down in the first bracket; The air conduction speaker includes a second bracket, a U cup, a diaphragm, a second voice coil, a second magnet, and a second washer; the second bracket is located on the front end surface of the first bracket; the U cup is installed in the second bracket and is offset above the yoke; the diaphragm is arranged at the opening of the second bracket and fixed on the second bracket; the second magnet is installed in the U cup, one end surface of the second voice coil is connected to the diaphragm, and the other end surface extends between the second magnet and the U cup; the second washer is stacked on one surface of the second magnet.

2. A bone-air conduction composite speaker according to claim 1, characterized in that: The yoke includes a first ring wall, a second ring wall and a third ring wall, and the first ring wall, the second ring wall and the third ring wall form a accommodating cavity that passes through from top to bottom, and the first magnet, the first washer and the first voice coil are located in the accommodating cavity; the first gasket is sleeved on the outside of the first ring wall, and the second gasket is also sleeved on the outside of the first ring wall, so that: the first gasket and the second gasket are respectively against the upper and lower surfaces of the vibration reed.

3. A bone-air conduction composite speaker according to claim 2, characterized in that: The bone conduction speaker also includes a back cover, which is mounted on the lower end surface of the first bracket to enclose a cavity, and the yoke, the vibration reed, the first magnet, the first voice coil, the first washer and the first gasket are accommodated in the cavity. An annular mounting position is provided on the back cover, and a first annular gap is formed between the inner wall surface of the third ring wall and the outer wall surface of the first magnet. An end surface of the first voice coil close to the vibration reed is at least partially located in the first annular gap, and an end surface of the first voice coil away from the vibration reed is at least partially located at the annular mounting position.

4. The bone-air conduction composite speaker according to claim 3, characterized in that: The back cover is also provided with an air leakage hole connected to the cavity, and the air leakage hole is used to discharge the air pressure generated by the bone conduction speaker.

5. The bone-air conduction composite speaker according to claim 2, characterized in that: The second bracket has an outer step portion and an inner step portion, the outer step portion is located beside the inner step portion; the diaphragm has an outer ring portion, the outer ring portion is limited by the outer step portion; the inner step portion is provided with an air hole, and the air hole is connected to the cavity.

6. The bone-air conduction composite speaker according to claim 2, characterized in that: The second bracket has a through cavity, and a ring-shaped positioning groove is recessed inwardly at the through cavity; the outside of the U cup has an annular positioning portion for matching with the annular positioning groove, and the U cup is installed at the through cavity through the cooperation of the annular positioning portion and the annular positioning groove, and part of the U cup extends into the accommodating cavity.

7. The bone-air conduction composite speaker according to claim 2, characterized in that: The yoke is of a folded-line step type, the accommodating cavity has a first cavity and a second cavity that are connected, the U cup is offset above the first cavity, and the U cup is at least partially located in the first cavity; the first magnet, the first washer and the first voice coil are at least partially located in the second cavity.

8. The bone-air conduction composite speaker according to claim 1, characterized in that: The first washer and the first magnet are both hollow structures.

9. The bone-air conduction composite speaker according to claim 1, characterized in that: The air conduction horn also includes a solder pad for current to flow in and out, the solder pad includes a solder piece portion for connecting to the lead of the second voice coil and a conductive portion for electrically connecting to an external element, and the conductive portion extends out of the second bracket.

10. The bone-air conduction composite speaker according to claim 4, characterized in that: The back cover is also provided with a connecting hole, which is located beside the air leakage hole and is connected to the cavity.

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