Speakers and electronic devices

Abstract

The present invention discloses a loudspeaker and an electronic device, wherein the loudspeaker includes a dynamic coil speaker and a moving iron speaker; the dynamic coil speaker includes: a housing having a housing cavity and a sound outlet connected to the housing cavity; a vibration system disposed in the housing cavity, the vibration system including a diaphragm and a voice coil, the diaphragm being disposed close to the sound outlet and capable of covering the sound outlet, the voice coil being disposed on a side of the diaphragm away from the sound outlet; and a magnetic circuit system disposed in the housing cavity and located on a side of the diaphragm away from the sound outlet; the moving iron speaker is disposed in the housing cavity and located on a side of the diaphragm away from the sound outlet. The technical solution of the present invention can ensure high-quality sound effects, while also achieving waterproof, dustproof and self-cleaning functions, thereby extending service life.

Description

Technical Field

[0001] The present invention relates to the technical field of sound energy conversion, and in particular to a loudspeaker and electronic equipment. Background Art

[0002] At present, various electronic devices (such as smart watches, mobile phones, etc.) are widely used in people's daily lives. However, due to daily use problems, many household stains (such as sweat stains, cola, soapy water, shower gel, sunscreen, etc.) will form attached dirt that adheres to the sound output surface of the speaker of the electronic device (such as the dustproof net), and in serious cases, it will adhere to the diaphragm of the speaker. Therefore, during daily use, the sound structure of the electronic device needs to be effectively cleaned and maintained, but it is not easy to achieve complete cleaning due to the high difficulty of cleaning. As the attached stains continue to accumulate, to a certain extent, it will affect the acoustic performance of the speaker, causing the sound emitted by the speaker to become smaller, or even produce noise, which will shorten the service life. Summary of the Invention

[0003] The main purpose of the present invention is to provide a speaker that can ensure high-quality sound effects while also being waterproof, dustproof and self-cleaning, thereby extending the service life.

[0004] To achieve the above-mentioned purpose, the speaker proposed in the present invention includes a dynamic speaker and a moving iron speaker;

[0005] The dynamic speaker comprises:

[0006] A housing having a housing cavity and a sound outlet communicating with the housing cavity;

[0007] a vibration system disposed in the accommodating cavity, the vibration system comprising a diaphragm and a voice coil, the diaphragm being disposed near the sound outlet and capable of covering the sound outlet, and the voice coil being disposed on a side of the diaphragm away from the sound outlet; and

[0008] a magnetic circuit system, disposed in the accommodating cavity and located on a side of the diaphragm away from the sound outlet;

[0009] The moving iron speaker is arranged in the accommodating cavity and is located on a side of the diaphragm away from the sound outlet.

[0010] In one embodiment, the shell includes a fixed frame and an end cover, the fixed frame encloses the accommodating cavity, one end of the fixed frame is provided with a first port connected to the accommodating cavity, the end cover is fixed at the first port, the sound outlet is opened in the end cover, and the diaphragm is clamped between the fixed frame and the end cover.

[0011] In one embodiment, the inner circumference of the first port is provided with a limiting step, the end surface of the limiting step is lower than the end surface of the first port, one side of the diaphragm is fixedly connected to the end surface of the limiting step, and the end cover is fixedly connected to the other side of the diaphragm.

[0012] In one embodiment, one side of the diaphragm is adhesively fixed to the end surface of the limiting step, and the end cover is adhesively fixed to the other side of the diaphragm.

[0013] In one embodiment, the limiting step is arranged in an annular shape extending along the circumference of the first port.

[0014] In one embodiment, the magnetic circuit system includes a support plate and a magnetic assembly, the support plate is fixed to the shell, the magnetic assembly and the moving iron speaker are both fixed to the side of the support plate close to the diaphragm, the wiring terminal of the moving iron speaker is connected to a wiring post, and the support plate is provided with a through hole for the wiring post to pass through.

[0015] In one embodiment, the magnetic assembly includes a plurality of magnets, and the plurality of magnets are spaced apart and arranged around the periphery of the moving iron speaker.

[0016] In one embodiment, the vibration system further includes a dome, which is fixed to a side of the diaphragm close to the voice coil.

[0017] In one embodiment, the vibration system further includes two wiring terminals, each of the wiring terminals includes a first wiring terminal and a second wiring terminal connected to each other, the first wiring terminal is located inside the shell and is electrically connected to one of the leads of the voice coil, and the second wiring terminal passes through the outside of the shell and is used to be electrically connected to an external circuit.

[0018] The present invention also provides an electronic device comprising the above-mentioned loudspeaker.

[0019] The technical solution of the present invention forms a combined loudspeaker by combining a dynamic speaker with a moving iron speaker. The moving iron speaker is the sound-generating main body. When working, the audio source is mainly provided by the moving iron speaker to realize the audio function of the electronic device. The moving iron speaker has the advantages of small size, low power consumption, good transient response, strong mid-high frequency resolution, etc., which can ensure high-quality pronunciation effect. By flexibly configuring different types of moving iron speakers, it is convenient to improve the sound quality. The moving iron speaker is arranged in the accommodating cavity of the shell of the dynamic speaker. The sealing structure formed by the shell and diaphragm of the dynamic speaker can play a sealing and protective role for the moving iron speaker, achieve a good waterproof and dustproof effect, and improve the service life of the moving iron speaker. When an excitation signal is given to the dynamic speaker, the interaction between the magnetic circuit system and the voice coil can drive the diaphragm to vibrate. During the vibration of the diaphragm, foreign matter or dirt on its surface can be shaken off without contaminating the moving iron speaker, thereby achieving a self-cleaning effect and further extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0021] Figure 1 A schematic structural diagram of an embodiment of a loudspeaker according to the present invention;

[0022] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the speaker;

[0023] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure of the speaker.

[0024] Description of Figure Numbers:

[0025] Label name Label name 100 speaker 1221 lead 11 case 123 Dome 101 Accommodation cavity 124 Terminal Blocks 102 Sound outlet 1241 First terminal 111 Fixed frame 1242 Second terminal 112 End cap 13 Magnetic circuit system 113 Limiting steps 131 Support plate 12 Vibration system 132 magnet 121 diaphragm 20 Dynamic iron speaker 122 voice coil 21 Binding Posts

[0026] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0028] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] The present invention provides a speaker 100. The speaker 100 may be used in electronic devices such as smart watches, mobile phones, speakers, headphones, and computers, but is not limited to such devices.

[0031] Please refer to Figures 1 to 3 In one embodiment of the present invention, the loudspeaker 100 includes a dynamic coil speaker and a moving iron speaker 20; the dynamic coil speaker includes a housing 11, a vibration system 12, and a magnetic circuit system 13. The housing 11 has a housing 101 and a sound outlet 102 connected to the housing 101; the vibration system 12 is disposed in the housing 101 and includes a diaphragm 121 and a voice coil 122. The diaphragm 121 is disposed near the sound outlet 102 and can cover the sound outlet 102, and the voice coil 122 is disposed on a side of the diaphragm 121 away from the sound outlet 102; the magnetic circuit system 13 is disposed in the housing 101 and is located on a side of the diaphragm 121 away from the sound outlet 102; the moving iron speaker 20 is disposed in the housing 101 and is located on a side of the diaphragm 121 away from the sound outlet 102.

[0032] The technical solution of the present invention forms a combined loudspeaker 100 by combining a dynamic speaker with a moving iron speaker 20. The moving iron speaker 20 is the sound-generating body. During operation, the moving iron speaker 20 primarily provides the audio source, realizing the audio function of the electronic device. The moving iron speaker 20 has the advantages of small size, low power consumption, good transient response, and strong mid- and high-frequency resolution, ensuring high-quality sound effects. By flexibly configuring different models of moving iron speakers 20, it is easy to improve the sound quality. Furthermore, the moving iron speaker 20 is disposed within the accommodating cavity 101 of the dynamic speaker housing 11. The sealing structure formed by the combination of the dynamic speaker housing 11 and the diaphragm 121 can provide a sealing and protective effect for the moving iron speaker 20, achieving good waterproof and dustproof effects and extending the service life of the moving iron speaker 20. When an excitation signal is applied to the dynamic speaker, the interaction between the magnetic circuit system 13 and the voice coil 122 drives the diaphragm 121 to vibrate. During the vibration process, the diaphragm 121 can shake off foreign matter or contaminants on its surface without contaminating the dynamic iron speaker 20, thereby achieving a self-cleaning effect and further extending the service life. It is understood that in order to facilitate the removal of foreign matter or contaminants from the diaphragm 121, the electronic device can be adjusted in actual use so that the sound outlet 102 faces downward. Once the foreign matter or contaminants are separated from the diaphragm 121, they can fall under the action of gravity.

[0033] In this embodiment, the housing 11 serves as the main structure of the dynamic speaker, providing a mounting base for the vibration system 12 and the magnetic circuit system 13. It also serves as the main structure of the speaker 100, providing a mounting and protective space for the dynamic iron speaker 20. The specific structure of the housing 11 can be various, including but not limited to a square, rectangular, cylindrical, or other special-shaped shapes, which are not specifically limited here.

[0034] Please combine Figure 2 and Figure 3 In one embodiment, the shell 11 includes a fixed frame 111 and an end cover 112. The fixed frame 111 encloses the accommodating cavity 101. One end of the fixed frame 111 is provided with a first port connected to the accommodating cavity 101. The end cover 112 is fixed at the first port. The sound outlet 102 is opened in the end cover 112. The diaphragm 121 is sandwiched between the fixed frame 111 and the end cover 112.

[0035] Specifically, in this embodiment, the fixed frame 111 is an annular structure, and the hollow cavity inside it forms the accommodating cavity 101. The cross-sectional shape of the fixed frame 111 includes but is not limited to being set as a circular ring, a square ring, a rectangular ring, an elliptical ring or other special-shaped rings. The outer circumferential surface contour of the end cover 112 is adapted to the inner circumferential surface contour of the first port of the fixed frame 111, and the sound outlet 102 is opened in the middle of the end cover 112. The sound outlet 102 includes but is not limited to being set as a circle, square, rectangle, ellipse or other shapes. During assembly, the diaphragm 121 is first assembled in the position near the first port in the fixed frame 111, and then the end cover 112 is assembled on the outside of the diaphragm 121. The diaphragm 121 can be clamped by the fixed frame 111 and the end cover 112, thereby ensuring the installation reliability of the diaphragm 121. The area of ​​the diaphragm 121 is larger than the area of ​​the sound outlet 102 , so that the diaphragm 121 can completely cover the sound outlet 102 , thereby preventing foreign matter from falling from the sound outlet 102 into the accommodating cavity 101 .

[0036] To facilitate the installation of the diaphragm 121, a limiting step 113 is further provided on the inner circumference of the first port. The end surface of the limiting step 113 is lower than the end surface of the first port. One side of the diaphragm 121 is fixedly connected to the end surface of the limiting step 113, and the end cover 112 is fixedly connected to the other side of the diaphragm 121. Specifically, during assembly, the inner side surface of the diaphragm 121 is abutted against the end surface of the limiting step 113, and the end cover 112 is then fixed to the outer side surface of the diaphragm 121. The end surface of the limiting step 113 can position the diaphragm 121, ensuring that the diaphragm 121 as a whole can remain in a horizontal state and prevent the diaphragm 121 from deflecting.

[0037] The limiting step 113, the diaphragm 121, and the end cap 112 may be connected and fixed together in a variety of ways, including but not limited to bonding, fastener connection, etc. Optionally, in one embodiment, one side of the diaphragm 121 is bonded and fixed to the end surface of the limiting step 113, and the end cap 112 is bonded and fixed to the other side of the diaphragm 121.

[0038] In order to further ensure the installation stability of the diaphragm 121, further, as Figure 2 As shown, the limiting step 113 is arranged in an annular shape extending along the circumference of the first port. By setting the limiting step 113 in an annular shape, the outer peripheral edge of the diaphragm 121 can be effectively supported. In addition, there is a large contact area between the annular end face of the limiting step 113 and the inner side face of the outer edge of the diaphragm 121, which can further improve the sealing and waterproof performance. Optionally, during assembly, an adhesive can be applied to the end face of the limiting step 113 first, and then the diaphragm 121 can be attached to the end face of the limiting step 113.

[0039] like Figure 3 As shown, in one embodiment, the magnetic circuit system 13 includes a support plate 131 and a magnetic component, the support plate 131 is fixed to the shell 11, the magnetic component and the moving iron speaker 20 are both fixed to the side of the support plate 131 close to the diaphragm 121, the terminal of the moving iron speaker 20 is connected to the terminal post 21, and the support plate 131 is provided with a through hole for the terminal post 21 to pass through.

[0040] Specifically, in this embodiment, the support plate 131 is used to fix the magnetic component and the moving iron speaker 20, and the support plate 131 is generally a metal plate made of metal material. The support plate 131 is fixed in the shell 11. For example, the shell 11 includes a fixing frame 111 and an end cover 112. The end of the fixing frame 111 away from the first port is provided with a second port connected to the accommodating cavity 101. The support plate 131 is preferably fixed to the second port of the fixing frame 111 by bonding. The magnetic component and the moving iron speaker 20 are preferably fixed to the side of the support plate 131 close to the first port by bonding. The moving iron speaker 20 has two wiring terminals, each of which is connected to a terminal post 21. One end of the terminal post 21 passes through the outside of the shell 11 from the through hole of the support plate 131, so that the moving iron speaker 20 can be conveniently connected to the external circuit for power supply and signal transmission.

[0041] In one embodiment, the magnetic assembly includes a plurality of magnets 132, which are spaced apart and arranged around the periphery of the moving iron speaker 20. The number of magnets 132 can be two, three, or more. To ensure the uniformity of the magnetic field generated by the magnetic circuit system 13 of the moving coil speaker, the magnetic assembly generally includes an even number of magnets 132, for example, two, four, six, or more. Spaced apart and evenly arranged around the periphery of the moving iron speaker 20 ensures a balanced overall arrangement, preventing the moving iron speaker 20 from affecting the uniformity of the magnetic field of the magnetic circuit system 13, thereby ensuring the smooth vibration of the diaphragm 121. For example, in this embodiment, the magnetic assembly includes two spaced apart magnets 132, with the moving iron speaker 20 located between the two magnets 132. In this embodiment, there is only one moving iron speaker 20. Of course, in other embodiments, two, three, or more moving iron speakers 20 can be arranged in the accommodating cavity 101 of the housing 11 as needed, all of which are within the scope of protection of the present invention.

[0042] In the above embodiment, the vibration system 12 includes a diaphragm 121 and a voice coil 122. The voice coil 122 is disposed on the inner side of the diaphragm 121 (i.e., the side away from the sound outlet 102). The voice coil 122 is located in the magnetic field generated by the magnetic circuit system 13. When the voice coil 122 is energized, a magnetic force is generated on the voice coil 122, thereby driving the diaphragm 121 to vibrate back and forth in the direction of the magnetic force. The diaphragm 121 can be made of a metal material or a non-metal material, such as PET (polyester film), PEEK (polyetheretherketone), PAR (polyarylate), PI (polyimide), glass fiber, or aluminum, etc., without specific limitation herein.

[0043] Generally, the diaphragm 121 is relatively light. In order to increase the weight of the diaphragm 121 and ensure that the surface of the diaphragm 121 has a vibration amplitude as consistent as possible, in one embodiment, the vibration system 12 further includes a dome 123, which is fixed to the side of the diaphragm 121 close to the voice coil 122. Specifically, Figure 3 As shown, in this embodiment, the diaphragm 121 includes a central portion, a folded ring portion arranged around the central portion, and a fixed portion formed by extending outward from the folded ring portion. The fixed portion can overlap the end surface of the limiting step 113, and the dome 123 is stacked with the central portion of the diaphragm 121 to increase the overall load-bearing capacity and rigidity of the diaphragm 121. In addition, the dome 123 is arranged on the inner side of the diaphragm 121. In some special cases, if the diaphragm 121 is damaged, the dome 123 can also provide a second layer of protection for other components in the accommodating cavity 101.

[0044] In order to facilitate the connection of the voice coil 122 with the external circuit, based on the above embodiment, as shown in FIG. Figure 2 As shown, the vibration system 12 also includes two wiring terminals 124, each of which includes a first wiring terminal 1241 and a second wiring terminal 1242 that are interconnected. The first wiring terminal 1241 is located within the housing 11 and is electrically connected to one of the leads 1221 of the voice coil 122, while the second wiring terminal 1242 extends outside the housing 11 and is used to electrically connect to an external circuit. Specifically, leads 1221 are provided on opposite sides of the voice coil 122, and wiring terminals 124 are provided on opposite sides of the fixing frame 111 of the housing 11. The first wiring terminal 1241 of each wiring terminal 124 is located within the housing 11 and is electrically connected to an adjacent lead 1221. The second wiring terminal 1242 of each wiring terminal 124 extends outside the housing 11 and is used to electrically connect to an external circuit, thereby conveniently energizing the voice coil 122. The wiring terminals 124 can be formed by integrally bending metal springs.

[0045] The present invention also proposes an electronic device, which includes a device body and a speaker 100 arranged on the device body. The specific structure of the speaker 100 refers to the above-mentioned embodiment. Since this electronic device adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0046] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A loudspeaker, characterized in that: Including dynamic speakers and moving iron speakers; The dynamic speaker comprises: A housing having a receiving cavity and a sound outlet communicating with the receiving cavity; a vibration system disposed in the accommodating cavity, the vibration system comprising a diaphragm and a voice coil, the diaphragm being disposed near the sound outlet and capable of covering the sound outlet, and the voice coil being disposed on a side of the diaphragm away from the sound outlet; and a magnetic circuit system, disposed in the accommodating cavity and located on a side of the diaphragm away from the sound outlet; The moving iron speaker is arranged in the accommodating cavity and is located on the side of the diaphragm away from the sound outlet, and the moving iron speaker is the sound-emitting body. The dynamic coil speaker is used to self-clean the diaphragm, so that when the sound outlet is facing downward, foreign matter or dirt can fall off the diaphragm under the action of gravity after being separated from the diaphragm.

2. The loudspeaker according to claim 1, wherein The shell includes a fixed frame and an end cover, the fixed frame encloses the accommodating cavity, one end of the fixed frame is provided with a first port connected to the accommodating cavity, the end cover is fixed at the first port, the sound outlet is opened in the end cover, and the diaphragm is clamped between the fixed frame and the end cover.

3. The loudspeaker according to claim 2, wherein The inner circumference of the first port is provided with a limiting step, the end surface of the limiting step is lower than the end surface of the first port, one side of the diaphragm is fixedly connected to the end surface of the limiting step, and the end cover is fixedly connected to the other side of the diaphragm.

4. The loudspeaker according to claim 3, wherein One side of the diaphragm is bonded and fixed to the end surface of the limiting step, and the end cover is bonded and fixed to the other side of the diaphragm.

5. The loudspeaker according to claim 3, wherein The limiting step is arranged in an annular shape extending along the circumference of the first port.

6. The loudspeaker according to claim 1, wherein The magnetic circuit system includes a support plate and a magnetic component. The support plate is fixed to the shell. The magnetic component and the moving iron speaker are both fixed to the side of the support plate close to the diaphragm. The terminal of the moving iron speaker is connected to a terminal post, and the support plate is provided with a through hole for the terminal post to pass through.

7. The loudspeaker according to claim 6, wherein The magnetic assembly includes a plurality of magnets, and the plurality of magnets are arranged at intervals on the periphery of the moving iron speaker.

8. The loudspeaker according to claim 1, wherein The vibration system further includes a dome, which is fixed to a side of the diaphragm close to the voice coil.

9. The loudspeaker according to any one of claims 1 to 8, characterized in that The vibration system also includes two wiring terminals, each of which includes a first wiring terminal and a second wiring terminal connected to each other, the first wiring terminal is located in the shell and is electrically connected to one of the leads of the voice coil, and the second wiring terminal is extended outside the shell and is used to be electrically connected to an external circuit.

10. An electronic device, characterized in that: Comprising the loudspeaker according to any one of claims 1 to 9.

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