CN210629847U - Bone conduction massage loudspeaker - Google Patents
Bone conduction massage loudspeaker Download PDFInfo
- Publication number
- CN210629847U CN210629847U CN201922483662.XU CN201922483662U CN210629847U CN 210629847 U CN210629847 U CN 210629847U CN 201922483662 U CN201922483662 U CN 201922483662U CN 210629847 U CN210629847 U CN 210629847U
- Authority
- CN
- China
- Prior art keywords
- magnetic
- main body
- voice coil
- bone conduction
- conductive ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a bone conduction massage loudspeaker, which comprises a main body, a voice coil arranged on the main body, and a magnetic circuit component arranged on the inner side of the voice coil; the magnetic circuit assembly is connected with the main body through a vibration spring so as to be suspended on the inner side of the voice coil. The magnetic circuit component of the utility model is fixed in the installation cavity of the main body through the vibrating spring, and the inner wall of the installation cavity is provided with the voice coil; the voice coil is fed with an audio signal to generate a magnetic field to move the magnetic circuit assembly. The magnetic circuit component moves to generate vibration and sound and changes along with the input audio signal. And the voice coil is formed by winding a resistance wire, and can generate heat after an audio signal is introduced. The utility model discloses bone conduction massage speaker realizes massage, pronunciation, vibration and the function that generates heat, and the function is diversified, satisfies individualized demand.
Description
Technical Field
The utility model relates to an electroacoustic conversion technical field, the more specifically bone conduction massage speaker that says so.
Background
With the increasing demand of people for quality of spiritual life, various massage products can be widely applied in life and work. Particularly, the audio massage product with various functions and exquisite volume is deeply favored by people. However, the design of the traditional massage product is limited to a certain extent, and due to the working principle of the traditional massage product, the rotation principle of the motor under the action of the magnetic field is that the rotor is pushed to rotate by the coil in the magnetic field so as to realize massage, and the traditional massage product cannot simultaneously generate the functions of sound, vibration, heating and the like during massage, has a single function, and cannot meet the increasingly diversified and personalized requirements of people in life.
The existing massage products can not complete the function of synchronously converting the audio signals into massage, pronunciation, vibration and heating. The existing massage product uses a motor to realize massage, then uses a heating paste to heat, uses a traditional loudspeaker to play music, has troublesome processing technology and complex assembly requirements, and the massage layer is only difficult to penetrate into the inner layer focus on the surface. The existing massage products are greatly limited in massage effect and massage function, so that the popularization of the massage health care field is limited.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the not enough of prior art, provide a bone conduction massage speaker.
In order to realize the purpose, the utility model adopts the following technical scheme:
a bone conduction massage loudspeaker comprises a main body, a voice coil arranged on the main body, and a magnetic circuit assembly arranged on the inner side of the voice coil; the magnetic circuit assembly is connected with the main body through a vibration spring so as to be suspended on the inner side of the voice coil.
The further technical scheme is as follows: the magnetic circuit component comprises main magnetic steel, a first magnetic conductive ring arranged at one end of the main magnetic steel and a second magnetic conductive ring arranged at the other end of the main magnetic steel; the vibration spring is arranged between the first magnetic conductive ring and the main magnetic steel; the edge of the vibration spring is fixedly connected with the main body.
The further technical scheme is as follows: the magnetic circuit component also comprises auxiliary magnetic steel; the auxiliary magnetic steel is fixed at one end of the second magnetic conductive ring far away from the main magnetic steel.
The further technical scheme is as follows: the magnetic circuit assembly further comprises a positioning connecting piece; the main magnetic steel, the first magnetic conductive ring, the second magnetic conductive ring, the vibration spring and the auxiliary magnetic steel are all provided with central holes; the auxiliary magnetic steel, the second magnetic conductive ring, the main magnetic steel, the vibration spring and the first magnetic conductive ring are fixedly connected with the positioning connecting piece through self center holes in sequence.
The further technical scheme is as follows: the center holes of the main magnetic steel, the first magnetic conductive ring, the second magnetic conductive ring, the vibration spring and the auxiliary magnetic steel are connected with the positioning connecting piece in an interference fit mode.
The further technical scheme is as follows: the vibration spring is fixed on the main body through a protection piece; the protection piece is fixed at one end of the main body; the protection piece is of a circular ring structure.
The further technical scheme is as follows: the main body part is provided with an installation cavity; the voice coil is fixed on the inner wall of the mounting cavity.
The further technical scheme is as follows: the inner wall of the mounting cavity is provided with steps; the edge of the vibration spring extends to the step, and the vibration spring is fixed to the step by the guard.
The further technical scheme is as follows: the circuit board is also included; the circuit board is arranged at one end of the main body far away from the protection part.
A method for mounting a bone conduction massage loudspeaker comprises the steps that a positioning connecting piece is fixed to a clamp, and an auxiliary magnetic steel, a second magnetic conduction ring, a main magnetic steel, a vibration spring and a first magnetic conduction ring are sequentially fixed to the positioning connecting piece to form a magnetic circuit assembly; fixing the main body to the clamp, installing the magnetic circuit assembly, the voice coil and the circuit board to the main body, and electrically connecting the voice coil and the circuit board; the shield is mounted to the main body, and the magnetic circuit assembly is fixed to the mounting cavity of the main body.
Compared with the prior art, the utility model beneficial effect is: the magnetic circuit component of the utility model is fixed in the installation cavity of the main body through the vibrating spring, and the inner wall of the installation cavity is provided with the voice coil; the voice coil is fed with an audio signal to generate a magnetic field to move the magnetic circuit assembly. The magnetic circuit component moves to generate vibration and sound and changes along with the input audio signal. And the voice coil is formed by winding a resistance wire, and can generate heat after an audio signal is introduced. The utility model discloses bone conduction massage speaker realizes massage, pronunciation, vibration and the function that generates heat, and the function is diversified, satisfies individualized demand.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention can be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail.
Drawings
Fig. 1 is a cross-sectional view of a bone conduction massage speaker of the utility model;
fig. 2 is a structural diagram of a vibration spring of a bone conduction massage speaker of the utility model;
fig. 3 is a main structure view of a bone conduction massage speaker of the utility model;
fig. 4 is a main sectional view of a bone conduction massage speaker of the utility model;
fig. 5 is a view showing a structure of a protector of a bone conduction massage speaker according to the present invention;
fig. 6 is a cross-sectional view of a protective member of a bone conduction massage speaker according to the present invention;
fig. 7 is a flow chart of the magnetic circuit assembly mounting steps of the mounting method of the bone conduction massage speaker of the utility model;
fig. 8 is a flow chart of the magnetic circuit assembly and main body installation steps of the installation method of the bone conduction massage speaker of the utility model;
fig. 9 is a flowchart of the quality inspection steps of the installation method of the bone conduction massage speaker of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and the following detailed description.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "secured" are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.
Drawings 1 to 9 are drawings of the utility model.
Referring to fig. 1, the present embodiment provides a bone conduction massage speaker, which includes a main body 10, a voice coil 11 disposed on the main body 10, and a magnetic circuit assembly 12 disposed inside the voice coil 11. The magnetic circuit assembly 12 is coupled with the main body 10 by a vibration spring 13 provided so that the magnetic circuit assembly 12 is suspended inside the voice coil 11. Voice coil 11 is energized with an audio signal, so that voice coil 11 generates a magnetic field in response to the audio signal, and the magnetic field drives magnetic circuit assembly 12 to move.
The vibration spring 13 is made of plastic materials (ABS, POM, nylon, SAN, etc.), stainless steel, copper, fiber, spring steel, alloy spring steel, etc., and the vibration spring 13 produces sound by utilizing the vibration principle. Further, the bone conduction loudspeaker has the advantages of high frequency response and sound quality, clear high pitch, heavy and soft bass and powerful vibration conduction, and can effectively prevent the shaking amplitude during vibration. The center hole 126 of the vibration spring 13 has good concentricity, so that friction can be reduced, heat generation can be reduced, and vibration efficiency can be improved.
The material of the vibration spring 13 is changed according to the requirement, so that the strength of the rigidity and the flexibility of the product can be changed. The structure and thickness of the vibration spring 13 are changed, thereby realizing the change of the strength of the vibration conduction of the product. The material, structure and thickness of the vibration spring 13 are selected as needed.
Specifically, referring to fig. 2, a plurality of through grooves 131 are formed on the surface of the vibration spring 13 to increase its elasticity.
The size of the wire diameter of the voice coil 11 is changed according to the requirements of products, so that the vibration conduction strength is changed, and the sound production tone qualities of high frequency, medium frequency and low frequency are changed. By changing the impedance of the voice coil 11, the amount of heat generation can be increased or decreased. The voice coil 11 is not only used to generate a magnetic field, but also the impedance of the voice coil 11 is selected to generate heat in the voice coil 11.
Referring to fig. 1, the magnetic circuit assembly 12 includes a main magnetic steel 121, a first magnetic conductive ring 122 disposed at one end of the main magnetic steel 121, and a second magnetic conductive ring 123 disposed at the other end of the main magnetic steel 121. The vibration spring 13 is disposed between the first magnetic conductive ring 122 and the main magnetic steel 121. The edge of the vibration spring 13 is fixedly coupled with the main body 10. The voice coil 11 generates a changing magnetic field after being fed with a changing audio signal, and the magnetic induction lines pass through the main magnetic steel 121, the first magnetic conductive coil 122 and the second magnetic conductive coil 123, so that the main magnetic steel 121 generates power. Also, since the edge of the vibration spring 13 is fixedly coupled with the main body 10, the magnetic circuit assembly 12 performs a motion within a certain range of amplitude.
Wherein, in order to increase the magnetic force, the magnetic circuit assembly 12 further comprises a secondary magnetic steel 124. The secondary magnetic steel 124 is fixed at one end of the second magnetic conductive ring 123 far from the primary magnetic steel 121.
Referring to fig. 1, the magnetic circuit assembly 12 further includes a positioning connector 125. The main magnetic steel 121, the first magnetic conductive ring 122, the second magnetic conductive ring 123, the vibration spring 13 and the auxiliary magnetic steel 124 are all provided with a central hole 126, are located at the same position, and are all connected with the positioning connecting piece 125 during assembly. The auxiliary magnetic steel 124, the second magnetic conductive ring 123, the main magnetic steel 121, the vibration spring 13, and the first magnetic conductive ring 122 are sequentially and fixedly connected with the positioning connector 125 through a central hole 126 thereof. The main magnetic steel 121, the first magnetic conductive ring 122, the second magnetic conductive ring 123, the vibration spring 13 and the auxiliary magnetic steel 124 are all circular structures, so that after being fixed by the positioning connecting piece 125, the main magnetic steel, the first magnetic conductive ring, the second magnetic conductive ring, the vibration spring 13 and the auxiliary magnetic steel 124 are all concentrically arranged, and have good concentricity. The assembly structure can reduce the influence of magnetic force on the elasticity of the vibration spring 13 to the maximum extent, and the assembly structure of the magnetic circuit system can simplify the assembly process to a great extent and the consistency of products during assembly, thereby greatly improving the stability of the magnetic circuit in motion and prolonging the service life of the vibration spring 13.
Preferably, the central holes 126 of the main magnetic steel 121, the first magnetic conductive ring 122, the second magnetic conductive ring 123, the vibration spring 13 and the secondary magnetic steel 124 are coupled with the positioning connector 125 in an interference fit manner.
Referring to fig. 1, 5 and 6, the vibration spring 13 is fixed to the main body 10 by a protection member 14. The guard 14 is fixed to one end of the body 10. The shielding member 14 has a circular ring structure, so that the actuating end of the magnetic circuit assembly 12 passes through the middle of the shielding member 14.
Specifically, referring to fig. 1, 3 and 4, the main body 10 is provided with a mounting cavity 101. The voice coil 11 is fixed to the inner wall of the mounting chamber 101.
Referring to fig. 1, 3 and 4, a step 102 is formed on an inner wall of the mounting cavity 101. The edge of the vibration spring 13 extends to the step 102, and the vibration spring 13 is fixed to the step 102 by the guard 14. The processing technology of main part 10 must once only machine-formed, assurance concentricity that can be better when assembling with voice coil 11, vibrating spring 13, secondly can ensure magnetic circuit assembly 12 and voice coil 11's concentricity, then the at utmost makes voice coil 11 when circular telegram during operation, and the atress is even under production magnetic field and the magnetic circuit interact to the guarantee product conduction dynamics that can be very accurate and tone quality's unanimity.
Referring to fig. 1, the electronic device further includes a circuit board 15, and the circuit board 15 is disposed at an end of the main body 10 far from the protection component 14. The circuit board 15 is electrically connected to the voice coil 11.
When the power supply works, the voice coil 11 is fed with an audio signal and generates a magnetic field, the magnetic field of the voice coil 11 interacts with the magnetic circuit component 12 to generate a magnetic force to push the magnetic circuit component 12 to move, then the magnetic force passes through the vibration spring 13, the main body 10 and the protection part 14, and then the magnetic force is contacted with other media to further conduct and amplify sound and vibration, wherein the vibration spring 13 is made of plastic materials (ABS, POM, nylon, SAN and the like), stainless steel, copper, fibers, spring steel, alloy spring steel and the like. The utility model has a frequency of 50 HZ-20 KHZ.
A method for installing a bone conduction massage loudspeaker comprises fixing a positioning connector 125 to a fixture, and sequentially fixing an auxiliary magnetic steel 124, a second magnetic conductive ring 123, a main magnetic steel 121, a vibration spring 13 and a first magnetic conductive ring 122 to the positioning connector to form a magnetic circuit component 12; fixing the main body 10 to the jig, mounting the magnetic circuit assembly 12, the voice coil 11 and the circuit board 15 to the main body 10, and electrically connecting the voice coil 11 and the circuit board 15; the shield 14 is mounted to the main body 10, and the magnetic circuit assembly 1 is fixed to the mounting cavity 101 of the main body 10.
The method comprises the specific steps that the magnetic circuit component 12 is assembled to form a whole. Then the voice coil 11 is mounted into the body 10; finally, the magnetic circuit assembly 12 is assembled into the body 10 to which the voice coil 11 is mounted.
Specifically, referring to fig. 7, the installation of the magnetic circuit assembly 12 includes the following steps:
s11, fixing the positioning connector 125 to the jig;
s12, the secondary magnet 124 is mounted to the positioning connector 125; the positioning connecting piece 125 is assembled through the central hole of the auxiliary magnetic steel 124;
s13, the second flux ring 123 is mounted to the positioning connection 125; the positioning connecting piece 125 is assembled through the central hole of the second magnetic conductive ring 123;
s14, the main magnet steel 121 is mounted to the positioning connection piece 125; the main magnet 121 is also assembled with the positioning connecting piece 125 through a central hole;
s15, the vibration spring 13 is mounted to the positioning link 125; also assembled with the positioning connection 125 through the center hole of the vibration spring 13;
s16, the first flux ring 122 is mounted to the positioning connector 125; the first magnetic conductive ring 122 is also assembled with the positioning connecting piece 125 through the central hole;
s17, pressing the fixture with force, expanding the two ends of the positioning connector 125, so that the auxiliary magnetic steel 124, the second magnetic conductive ring 123, the main magnetic steel 121, the vibration spring 13, and the first magnetic conductive ring 122 are fixed to the positioning connector 125;
and S18, magnetizing the main magnet steel 121 and the auxiliary magnet steel 124 to complete assembly.
Referring to fig. 8, the assembling steps of the voice coil 11 and the body 10 are as follows:
s21, the main body 10 is fixed to a jig,
s22, fixing the voice coil 11 in the mounting cavity of the main body 10;
s23, gluing and fixing the matching part of the voice coil 11 and the main body 10;
s24, the circuit board 15 is assembled to the main body 10 and fixed with glue at the fitting place;
s25, welding the positive and negative poles of the voice coil 11 to the circuit board 15;
s26, assembling the magnetic circuit assembly 12 to the main body 10;
s27, gluing the part where the vibration spring 13 is matched with the main body 10;
s28, the protection member 14 is mounted to an end surface of the main body 10;
s29, the clip is squeezed hard to install the guard 14 in place and the installation is completed.
After the installation steps, the bone conduction massage speaker is basically installed, but a qualified product needs to be formed after leaving the factory, and a plurality of QC test procedures need to be performed, as shown in fig. 9, as follows:
s31, detecting the appearance of the assembled product;
s32, pasting protective paper;
s33, testing tone quality and vibration;
and S34, stamping, boxing and opening a report and checking list.
Compared with the prior art, the magnetic circuit component of the utility model is fixed in the installation cavity of the main body through the vibrating spring, and the inner wall of the installation cavity is provided with the voice coil; the voice coil is fed with an audio signal to generate a magnetic field to move the magnetic circuit assembly. The magnetic circuit component moves to generate vibration and sound and changes along with the input audio signal. And the voice coil is formed by winding a resistance wire, and can generate heat after an audio signal is introduced. The utility model discloses bone conduction massage speaker realizes massage, pronunciation, vibration and the function that generates heat, and the function is diversified, satisfies individualized demand.
The technical content of the present invention is further described by way of examples only, so as to facilitate the understanding of the reader, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the utility model is subject to the claims.
Claims (9)
1. A bone conduction massage loudspeaker is characterized by comprising a main body, a voice coil arranged on the main body and a magnetic circuit assembly arranged on the inner side of the voice coil; the magnetic circuit assembly is connected with the main body through a vibration spring so as to be suspended on the inner side of the voice coil.
2. The bone conduction massage speaker as claimed in claim 1, wherein the magnetic circuit assembly comprises a main magnetic steel, a first magnetic conductive ring disposed at one end of the main magnetic steel, and a second magnetic conductive ring disposed at the other end of the main magnetic steel; the vibration spring is arranged between the first magnetic conductive ring and the main magnetic steel; the edge of the vibration spring is fixedly connected with the main body.
3. A bone conduction massage speaker as claimed in claim 2, wherein the magnetic circuit assembly further comprises secondary magnetic steel; the auxiliary magnetic steel is fixed at one end of the second magnetic conductive ring far away from the main magnetic steel.
4. A bone conduction massage speaker as claimed in claim 3, wherein the magnetic circuit assembly further comprises a positioning connection; the main magnetic steel, the first magnetic conductive ring, the second magnetic conductive ring, the vibration spring and the auxiliary magnetic steel are all provided with central holes; the auxiliary magnetic steel, the second magnetic conductive ring, the main magnetic steel, the vibration spring and the first magnetic conductive ring are fixedly connected with the positioning connecting piece through self center holes in sequence.
5. The bone conduction massage speaker as recited in claim 4, wherein the central holes of the main magnetic steel, the first magnetic conductive ring, the second magnetic conductive ring, the vibration spring and the secondary magnetic steel are coupled with the positioning connector in an interference fit manner.
6. The bone conduction massage speaker of claim 4, wherein the vibration spring is fixed to the main body by a shield; the protection piece is fixed at one end of the main body; the protection piece is of a circular ring structure.
7. The bone conduction massage speaker of claim 6, wherein the body member is provided with a mounting cavity; the voice coil is fixed on the inner wall of the mounting cavity.
8. A bone conduction massage speaker as claimed in claim 7, wherein the mounting chamber is provided with a step on an inner wall thereof; the edge of the vibration spring extends to the step, and the vibration spring is fixed to the step by the guard.
9. The bone conduction massage speaker of claim 6, further comprising a circuit board; the circuit board is arranged at one end of the main body far away from the protection part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922483662.XU CN210629847U (en) | 2019-12-30 | 2019-12-30 | Bone conduction massage loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922483662.XU CN210629847U (en) | 2019-12-30 | 2019-12-30 | Bone conduction massage loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210629847U true CN210629847U (en) | 2020-05-26 |
Family
ID=70749633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922483662.XU Active CN210629847U (en) | 2019-12-30 | 2019-12-30 | Bone conduction massage loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210629847U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115278476A (en) * | 2022-05-10 | 2022-11-01 | 荣耀终端有限公司 | Audio transducer and wearable audio output device |
-
2019
- 2019-12-30 CN CN201922483662.XU patent/CN210629847U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115278476A (en) * | 2022-05-10 | 2022-11-01 | 荣耀终端有限公司 | Audio transducer and wearable audio output device |
| CN115278476B (en) * | 2022-05-10 | 2023-07-25 | 荣耀终端有限公司 | Audio transducer and wearable audio output device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103152664B (en) | One has structure improved receiver | |
| CN110719554B (en) | Sound production device and electronic equipment thereof | |
| CN101765044A (en) | Minitype moving-coil electroacoustic transducer | |
| CN104581580A (en) | Telephone receiver provided with improved structure | |
| CN110662155B (en) | Sound production device and assembly method thereof | |
| CN210629847U (en) | Bone conduction massage loudspeaker | |
| CN110933572A (en) | Bone conduction massage loudspeaker and installation method thereof | |
| US20030156732A1 (en) | Speaker and method of manufacturing the same | |
| CN204442681U (en) | There is the receiver of good power armature | |
| CN206611571U (en) | Loudspeaker | |
| KR20110103597A (en) | High efficiency micro speaker of conductive glue | |
| CN104507026A (en) | Receiver with large-vibration-force armature | |
| CN104754486A (en) | Method for fabricating loudspeaker | |
| CN215734823U (en) | A kind of loudspeaker | |
| CN216491038U (en) | Loudspeaker sound production device | |
| CN209914058U (en) | Novel yoke type magnetic circuit titanium unit loudspeaker | |
| CN204334898U (en) | A kind of receiver with connecting rod | |
| CN212936189U (en) | Magnetic circuit system and electronic device | |
| CN210958781U (en) | Effectual speaker china of magnetic conduction | |
| CN214921227U (en) | Clamp for welding loudspeaker unit of Bluetooth headset board card | |
| CN209845229U (en) | Novel loudspeaker inner structure body | |
| CN215734758U (en) | Noise reduction Bluetooth headset | |
| CN216982111U (en) | Coaxial loudspeaker and earphone of radial magnetic circuit | |
| CN211378239U (en) | Equivalent plane diaphragm loudspeaker based on annular magnet | |
| CN219395034U (en) | Multi-magnetic circuit miniature loudspeaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |