Patent Grant
10917712
This application is a National Phase entry of PCT Application No. PCT/CN2017/093098, filed on Jul. 17, 2017, which claims priority to Chinese Patent Application No. 201710117347.8, titled “SPEAKER AND EARBUDS”, filed with the China National Intellectual Property Administration on Mar. 01, 2017, the entire disclosure of which are incorporated herein by reference.
The present application relates to the technical field of earphones, and in particular to a speaker and earbuds.
With the rapid development of technology, there is an increasingly demand for quality of life, and consumer electronics are developed towards high quality, and such trend is pretty obvious in the research, development and manufacture of earphones. Like mobile phones with various bands, earphones are developed to have waterproof functions, and these earphones are expected to not only be waterproof, but also have better sound effects while being waterproof.
At present, a waterproof earphone uses the following technology: a present tuning technology, that is, providing sound release holes for the back sound cavity of the speaker to extend the low frequency, and the sound release holes need to be clear and have a high air permeability, however, due to the low air permeability of the IPX7 waterproof material which is basically airtight and cannot meet the two conditions required for the sound holes: first condition is clear and second condition is a high air permeability, the low frequency effect is poor. If the low frequency effect is improved only by increasing the volume of the rear sound cavity, the volume of the product will increase, which makes the product look cumbersome and destroy the aesthetics of the product. When the enclosed rear sound cavity is in the working process of the speaker, that is, when the vibration diaphragm vibrates, the vibration diaphragm will compress the volume of the rear sound cavity, which causes the internal pressure of the rear sound cavity is increased, and the reaction force in turn applies to the vibration diaphragm, thereby weakening the vibration force of the vibration diaphragm and causing the speaker failing to release a strong enough low frequency effect.
A first object of the present application is to provide a speaker device capable of enhancing the vibration performance and increasing the low frequency effect.
The present application is implemented in the form of a speaker device, the speaker device includes a speaker bracket, the speaker bracket includes a cylindrical speaker housing, and a partition plate is arranged in a radial direction in a cavity enclosed by the speaker housing; a first speaker and a second speaker are respectively arranged on two sides of the partitioning plate, and each of the first speaker and the second speaker includes a magnetic circuit system fixed on the partition plate, and a vibration system, an edge portion of which is fixed at an end portion of the speaker housing on a corresponding side; the magnetic circuit system includes a magnet and a washer which are sequentially fixed on the partition plate, a magnetic gap is provided between the magnet together with the washer and the speaker housing, and an air pressure balance hole is provided on the partition plate at the magnetic gap position; and the vibration system includes a voice coil and a vibration diaphragm covering the end portion of the speaker housing, and the voice coil is fixedly connected to a side surface of the vibration diaphragm.
As an improvement, a flange is provided on each outer side of both end portions of the speaker housing, and the edge portion of the vibration system is fixed on the flange.
As an improvement, through holes are respectively provided on opposite sides of the flange, a first speaker positive electrode and a first speaker negative electrode are respectively arranged at two through holes corresponding to a side of the flange adjacent to the first speaker, which are electrically connected to two ends of the voice coil of the first speaker, respectively; and a second speaker positive electrode and a second speaker negative electrode are respectively arranged at two through holes corresponding to a side of the flange adjacent to the second speaker, which are electrically connected to two ends of the voice coil of the second speaker, respectively.
As an improvement, multiple air pressure balance holes are provided.
As an improvement, the multiple air pressure balance holes are arranged in a ring-shaped array.
Since the above technical solution is adopted, the speaker device according to the present application includes a cylindrical speaker housing, and a partition plate is arranged in a radial direction in a cavity enclosed by the speaker housing; a first speaker and a second speaker are respectively arranged on two sides of the partitioning plate, and each of the first speaker and the second speaker includes a magnetic circuit system fixed on the partition plate, and a vibration system of which an edge portion is fixed at an end portion of the speaker housing on the corresponding side; the magnetic circuit system includes a magnet and a washer which are sequentially fixed on the partition plate, a magnetic gap is provided between the magnet together with the washer and the speaker housing, and an air pressure balance hole is provided on the partition plate at the magnetic gap position; and the vibration system includes a voice coil and a vibration diaphragm covering the end portion of the speaker housing, and the voice coil is fixedly connected to a side surface of the vibration diaphragm. During operation, the voice coil of the first speaker and the voice coil of the second speaker are respectively supplied with signal currents in different polarities, and the electromagnetic induction generates vibration forces in a same direction, so that a vibration direction of the vibration diaphragm of the first speaker and a vibration direction of the vibration diaphragm of the second speaker are the same, thereby the vibration performance is enhanced, the low frequency effect is improved, and the acoustic performance is improved.
A second object of the present application is to provide a waterproof earbud, which aims to solve the problem of poor low frequency effect of the existing earbud, and can improve the acoustic performance.
The present application is implemented in the form of an earbud, the earbud includes a front earbud housing and a rear earbud housing which are fastened together, and the speaker device as described above is mounted in a space enclosed by the front earbud housing and the rear earbud housing, multiple front housing sound output holes is arranged on the front earbud housing, and an acoustic waterproof membrane is provided between the multiple front housing sound output holes and the speaker device.
As an improvement, the first speaker or the second speaker of the speaker device is arranged towards the front earbud housing.
As an improvement, an earbud wire hole is arranged at an end of the rear earbud housing away from the front earbud housing, and a flexible wire clip is mounted in the earbud wire hole.
Since the above technical solution is adopted, the earbud provided by the present application includes a front earbud housing and a rear earbud housing which are fastened together, the speaker device is installed in a space enclosed by the front earbud housing and the rear earbud housing, a plurality of front housing sound output holes is arranged on the front earbud housing, and an acoustic waterproof membrane is arranged between the multiple front housing sound output holes and the speaker device. Since the speaker device as described above is mounted in the space enclosed by the front earbud housing and the rear earbud housing, the vibration direction of the vibration diaphragm of the first speaker and the vibration direction of the vibration diaphragm of the second speaker of the speaker device are the same, which enhances the vibration performance and improves the low frequency effect and the acoustic performance of the earbud, and since an acoustic waterproofing membrane is arranged between the multiple front housing sound output holes and the speaker device while no sound output hole is arranged on the rear earbud housing, the waterproof performance of the earbud is enhanced.
Reference numerals in the drawings:
101
a front earbud housing, 101b rear earbud housing, 102 acoustic waterproof membrane, 103 earplug portion, 104 front housing sound output hole case, 105 a first speaker, 105b second speaker, 106 rear sound cavity, 107 third cavity, 108 second cavity, 109 first cavity, 110 earbud wire hole, 111 wire clip, 201a vibration diaphragm, 201b vibration diaphragm, 202 speaker bracket, 203a voice coil, 203b voice coil, 204a washer, 204b washer, 205a magnet, 205b magnet, 206a first speaker positive electrode, 206b second speaker positive electrode, 207a first speaker negative electrode, 207b second speaker negative electrode, 208 air pressure balance hole, 209 partition plate.
To make the objects, solutions and advantages of the present application more clear and apparent, the present application is described in detail in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present application, and are not intended to limit the present application.
As can be seen from
Specifically, a magnetic circuit system of the first speaker 105a includes a magnet 205a fixedly connected to the partition plate 209 and a washer 204a fixedly connected to the magnet 205a, the vibration system of the first speaker 105a includes a voice coil 203a encircling the magnet 205a and the washer 204a and a vibration diaphragm 201a covering at one end portion of the speaker housing, and the voice coil 203a is fixedly connected to one side surface of the vibration diaphragm 201a; and a magnetic circuit system of the second speaker 105b includes a magnet 205b fixedly connected to the partition plate 209 and a washer 204b fixedly connected to the magnet 205b, the vibration system of the second speaker 105b includes a voice coil 203b encircling the magnet 205b and the washer 204b and a vibration diaphragm 201b covering at the other end portion of the speaker housing, and the voice coil 203b is fixedly connected to the other side surface of the vibration diaphragm 201b.
A flange is provided on each outer side of both end portions of the speaker housing, an edge portion of the vibration system is fixed on the flange, that is, an edge portion of the vibration diaphragm is fixed on the flange, and through holes are respectively provided on opposite sides of the flanges; a first speaker positive electrode 206a and a first speaker negative electrode 207a are respectively arranged at two through holes corresponding to a side of the flange adjacent to the first speaker 105a, and the first speaker positive electrode 206a and the first speaker negative electrode 207a are electrically connected to two ends of the voice coil 203a, respectively; and, a second speaker positive electrode 206b and a second speaker negative electrode 207b are respectively arranged at two through holes corresponding to a side of the flange adjacent to the second speaker 105b, which are electrically connected to two ends of the voice coil 203b, respectively.
During operation, the voice coil 203a of the first speaker 105a and the voice coil 203b of the second speaker 203b are respectively supplied with signal currents in different polarities, and the electromagnetic induction generates vibration forces in a same direction, so that a vibration direction of the vibration diaphragm 201a of the first speaker 105a and a vibration direction of the vibration diaphragm 201b of the second speaker 105b are the same, thereby the vibration performance is enhanced, the low frequency effect is improved, and the acoustic performance is improved.
As can be seen from
Since the speaker device as described above is mounted in the space enclosed by the front earbud housing 101a and the rear earbud housing 101b, the vibration direction of the vibration diaphragm 201a of the first speaker 105a and the vibration direction of the vibration diaphragm 201b of the second speaker 105b of the speaker device are the same, which enhances the vibration performance and improves the low frequency effect and the acoustic performance of the earbud; and since the acoustic waterproofing membrane 102 is arranged between the plurality of front housing sound output holes 104 and the speaker device while no sound output hole is arranged on the rear earbud housing 101b, the waterproof performance of the earbud is enhanced.
In the present embodiment, the acoustic waterproof membrane 102 has a waterproof rating of IPX7. Obviously, it is also applicable to choose a higher waterproof rating or a lower waterproof rating according to a specific working environment.
In the present embodiment, an earbud wire hole 110 is arranged at an end of the rear earbud housing 101b away from the front earbud housing 101a, and a flexible wire clip 111 is mounted in the earbud wire hole 110 to prevent the earbud wire from being broken and prolong a service life thereof.
The above are only the better embodiments of the present application and are not intended to limit the present application. Any changes, equivalent substitutions, improvements and the like made within the spirit and principles of the present application are all contained in the protection scope of the present application.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2017 1 0117347 | Mar 2017 | CN | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2017/093098 | 7/17/2017 | WO | 00 |
| Publishing Document | Publishing Date | Country | Kind |
|---|---|---|---|
| WO2018/157535 | 9/7/2018 | WO | A |
| Number | Name | Date | Kind |
|---|---|---|---|
| 4472605 | Klein | Sep 1984 | A |
| 7499555 | Isvan | Mar 2009 | B1 |
| 10117018 | Shao et al. | Oct 2018 | B2 |
| 10469951 | Morgan | Nov 2019 | B2 |
| 20070098209 | Setiabudi | May 2007 | A1 |
| Number | Date | Country |
|---|---|---|
| 104159179 | Nov 2014 | CN |
| 204350254 | May 2015 | CN |
| 105100996 | Nov 2015 | CN |
| 205754772 | Nov 2016 | CN |
| 106851457 | Jun 2017 | CN |
| 2015019342 | Jan 2015 | JP |
| Entry |
|---|
| International Search Report for PCT/CN2017/093098 dated Nov. 28, 2017, ISA/CN. |
| Number | Date | Country | |
|---|---|---|---|
| 20200100015 A1 | Mar 2020 | US |
