A high and low tone integrated exciter and its implementation method

Abstract

The present invention discloses an integrated high-bass and low-frequency exciter, including a basin frame, a U-iron is connected to the inside of the basin frame, a magnetic steel is arranged inside the U-iron, a washer is arranged above the magnetic steel, a bass elastic wave is arranged inside the basin frame above the U-iron, a bass voice coil located outside the washer is connected to the inner ring of the bass elastic wave, a bass plastic support is connected to the upper end of the bass voice coil, a treble plastic support is arranged inside the bass plastic support, the treble plastic support is connected to the bass plastic support through the treble elastic wave, and a treble voice coil located inside the washer is arranged below the treble plastic support; the present invention also discloses a method for realizing an integrated high-bass and low-frequency exciter. The present invention adopts a high-bass and low-frequency combination method to achieve both high and low frequencies in one exciter, increase the bandwidth, and meet higher acoustic performance requirements; the treble voice coil of the present invention is arranged inside the bass voice coil, the treble does not affect the bass vibration, and can be independent of the bass vibration.

Description

Technical Field

[0001] The invention belongs to the technical field of exciters, and in particular relates to an exciter with integrated high and low frequencies and a method for realizing the same. Background Art

[0002] Screen sound is when a speaker integrates a sound membrane into the screen, and the speaker acts as an exciter, connecting to the screen through a voice coil to drive the screen to vibrate and produce sound. Screen sound has its place on smartphones, smart screens, and TVs.

[0003] However, the exciter designed in the prior art has some problems during use, such as:

[0004] 1. A single exciter cannot take into account both high and low frequencies, and the operating frequency band is narrow;

[0005] 2. Separate exciters for high and low frequencies are required, which is costly;

[0006] 3. When the high and low frequency drivers are independent, the high frequency driver has greater rigidity when driving the screen, because they are driving the same screen, which will affect the amplitude of the bass driver and produce greater distortion;

[0007] 4. When high and low sounds are produced together, they interfere with each other. Summary of the invention

[0008] The purpose of the present invention is to provide a high-bass integrated exciter to solve the problems raised in the above background technology. The high-bass integrated exciter provided by the present invention has the characteristics of realizing the coexistence of high and low frequencies on the same screen of the same exciter without interfering with each other.

[0009] Another object of the present invention is to provide a method for implementing a high-bass and low-frequency integrated exciter.

[0010] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an integrated high and low frequency exciter, comprising a basin frame, a U-iron is connected to the inside of the basin frame, a magnet is arranged inside the U-iron, a washer is arranged above the magnet, a bass elastic wave is arranged inside the basin frame above the U-iron, a bass voice coil located outside the washer is connected to the inner ring of the bass elastic wave, a bass voice coil located outside the washer is connected to the upper end of the bass voice coil is connected to a bass plastic support, a treble plastic support is arranged on the inner side of the bass plastic support, the treble plastic support is connected to the bass plastic support through the treble elastic wave, and a treble voice coil located inside the washer is arranged below the treble plastic support.

[0011] In order to provide elasticity for vibration and also play a role in conducting electricity to achieve the parallel connection of the high-frequency voice coil and the low-frequency voice coil. Further, the high-frequency spider is a conductive metal component, and the high-frequency spider includes a first spider and a second spider that are symmetrically arranged. A high-frequency lead pad is provided inside the first spider, and a low-frequency lead pad is provided outside the first spider. The structure of the second spider is the same as that of the first spider.

[0012] In order to facilitate production and assembly, further, the high-frequency spider, the low-frequency plastic bracket, and the high-frequency plastic bracket are formed by injection molding.

[0013] In order to achieve the parallel connection of the high-frequency voice coil and the low-frequency voice coil and synchronously input the audio signal into the high and low frequency parts well. Further, a wiring board is provided on the speaker frame. There are two sets of positive and negative leads on the low-frequency voice coil. One set of positive and negative leads is welded to the wiring board, and the other set of positive and negative leads is respectively welded to the low-frequency lead pads of the first spider and the second spider. The positive and negative leads of the high-frequency voice coil are respectively welded to the high-frequency lead pads of the first spider and the second spider.

[0014] Further, the low-frequency voice coil includes a voice coil and a skeleton. Among them, the voice coil is connected to the lower end of the skeleton, and the upper end of the skeleton is connected to the low-frequency plastic bracket. The structure of the high-frequency voice coil is the same as that of the low-frequency voice coil.

[0015] In order to facilitate the heat dissipation of the actuator, further, several heat dissipation holes are provided on the skeleton of the low-frequency voice coil.

[0016] In order to provide elasticity for vibration and also protect the leads. Further, a low-frequency surround is provided above the low-frequency spider. The outer ring of the low-frequency surround is connected to the speaker frame, and the inner ring of the low-frequency surround is connected to the low-frequency voice coil.

[0017] In order to filter the low-frequency signal passing through the high-frequency voice coil and make the signal input frequency-divided, which can be flexibly adjusted according to performance. Further, a filter capacitor is provided on the high-frequency lead pad.

[0018] In order to filter the high-frequency signal passing through the low-frequency voice coil and filter out the interference signals in the high-frequency part. Further, a filter inductor is provided on the low-frequency lead pad.

[0019] In the present invention, further, a method for realizing a high and low frequency integrated actuator includes the following steps:

[0020] (1). The U-shaped iron, the magnet, and the washer form a magnetic circuit driving structure to provide a driving magnetic field;

[0021] (2). The high-frequency plastic bracket is arranged inside the low-frequency plastic bracket, and the two are connected by the high-frequency spider to provide an installation surface for the high-frequency voice coil and the low-frequency voice coil;

[0022] (3). One set of positive and negative leads of the bass voice coil is welded to the wiring board for the input of audio signals;

[0023] (4). The other set of positive and negative leads of the bass voice coil are respectively welded to the bass lead pads of the first spider and the second spider, and the positive and negative leads of the treble voice coil are respectively welded to the treble lead pads of the first spider and the second spider, realizing the parallel connection of the bass voice coil and the treble voice coil.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. The present invention adopts a combination of high and low frequencies, realizing both high and low frequencies in one actuator, increasing the frequency bandwidth and meeting higher acoustic performance requirements;

[0026] 2. The treble voice coil of the present invention is arranged inside the bass voice coil, and the treble does not affect the bass vibration and can vibrate independently of the bass;

[0027] 3. The treble voice coil and the bass voice coil of the present invention share a magnet, improving the utilization rate of magnetic energy and effectively reducing the cost;

[0028] 4. The treble spider of the present invention is a conductive metal component, and the treble spider includes a first spider and a second spider arranged symmetrically. The inner side of the first spider is provided with a treble lead pad, and the outer side of the first spider is provided with a bass lead pad. The structure of the second spider is the same as that of the first spider. The treble spider provides elasticity for vibration and also plays a role in conduction, realizing the parallel connection of the treble voice coil and the bass voice coil;

[0029] 5. The treble voice coil and the bass voice coil of the present invention are connected in parallel, and the audio signal can be well synchronized and input into the high and low frequency parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is an exploded structural view of the present invention;

[0031] Figure 2 is a sectional structural view of the present invention;

[0032] Figure 3 is a structural view of the treble spider of the present invention;

[0033] Figure 4 is a structural view of the bass voice coil of the present invention;

[0034] In the figure: 1. High-frequency plastic support; 2. High-frequency diaphragm; 21. First diaphragm; 22. Second diaphragm; 23. Low-frequency lead pad; 24. High-frequency lead pad; 3. High-frequency voice coil; 4. Low-frequency plastic support; 5. Low-frequency surround; 6. Low-frequency diaphragm; 7. Low-frequency voice coil; 71. Voice coil; 72. Bobbin; 73. Heat dissipation hole; 8. Speaker frame; 81. Wiring board; 9. Washer; 10. Magnet; 11. U-shaped yoke. Detailed implementation mode

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] Embodiment 1

[0037] Please refer to Figures 1-4 , the present invention provides the following technical solutions: A high-low frequency integrated actuator, including a speaker frame 8, a U-shaped yoke 11 is connected inside the speaker frame 8, a magnet 10 is arranged inside the U-shaped yoke 11, a washer 9 is arranged above the magnet 10, a low-frequency diaphragm 6 is arranged above the U-shaped yoke 11 inside the speaker frame 8, a low-frequency voice coil 7 located outside the washer 9 is connected to the inner ring of the low-frequency diaphragm 6, a low-frequency plastic support 4 is connected to the upper end of the low-frequency voice coil 7, a high-frequency plastic support 1 is arranged inside the low-frequency plastic support 4, the high-frequency plastic support 1 is connected to the low-frequency plastic support 4 through a high-frequency diaphragm 2, and a high-frequency voice coil 3 located inside the washer 9 is arranged below the high-frequency plastic support 1.

[0038] By adopting the above technical solutions, the high-low frequency combination method is adopted to achieve both high-frequency and low-frequency in one actuator, increase the frequency bandwidth, and meet the higher acoustic performance requirements; the high-frequency voice coil 3 is arranged inside the low-frequency voice coil 7, the high-frequency does not affect the low-frequency vibration and can be independent of the low-frequency vibration; the high-frequency voice coil 3 and the low-frequency voice coil 7 share the magnet 10, improving the magnetic energy utilization rate and effectively reducing the cost.

[0039] Specifically, the high-frequency diaphragm 2 is a conductive metal component, specifically made of stainless steel or copper. In this embodiment, copper is preferably used, and the high-frequency diaphragm 2 includes symmetrically arranged first diaphragm 21 and second diaphragm 22. A high-frequency lead pad 24 is arranged inside the first diaphragm 21, and a low-frequency lead pad 23 is arranged outside the first diaphragm 21. The structure of the second diaphragm 22 is the same as that of the first diaphragm 21.

[0040] By adopting the above technical solutions, the high-frequency diaphragm 2 provides elasticity for vibration and also plays a role in conducting electricity, realizing the parallel connection of the high-frequency voice coil 3 and the low-frequency voice coil 7.

[0041] Specifically, the high-frequency diaphragm 2, the low-frequency plastic support 4, and the high-frequency plastic support 1 are injection-molded.

[0042] By adopting the above technical solution, production and assembly are facilitated.

[0043] Specifically, a wiring board 81 is provided on the speaker frame 8. There are two sets of positive and negative leads on the low-frequency voice coil 7. One set of positive and negative leads is welded to the wiring board 81 for the input of audio signals. The other set of positive and negative leads is respectively welded to the low-frequency lead pads 23 of the first diaphragm 21 and the second diaphragm 22. The positive and negative leads of the high-frequency voice coil 3 are respectively welded to the high-frequency lead pads 24 of the first diaphragm 21 and the second diaphragm 22.

[0044] By adopting the above technical solution, the parallel connection of the high-frequency voice coil 3 and the low-frequency voice coil 7 is realized, and the audio signal can be synchronously input into the high and low frequency parts well.

[0045] Specifically, the low-frequency voice coil 7 includes a voice coil 71 and a bobbin 72. Among them, the voice coil 71 is connected to the lower end of the bobbin 72, and the upper end of the bobbin 72 is connected to the low-frequency plastic support 4. The structure of the high-frequency voice coil 3 is the same as that of the low-frequency voice coil 7.

[0046] Embodiment 2

[0047] The difference between this embodiment and Embodiment 1 is: Specifically, a plurality of heat dissipation holes 73 are provided on the bobbin 72 of the low-frequency voice coil 7.

[0048] By adopting the above technical solution, it is beneficial to the heat dissipation of the actuator.

[0049] Embodiment 3

[0050] The difference between this embodiment and Embodiment 1 is: Specifically, a low-frequency surround 5 is provided above the low-frequency diaphragm 6. The outer ring of the low-frequency surround 5 is connected to the speaker frame 8, and the inner ring of the low-frequency surround 5 is connected to the low-frequency voice coil 7.

[0051] By adopting the above technical solution, it provides elasticity for vibration and can also protect the leads.

[0052] Embodiment 4

[0053] The difference between this embodiment and Embodiment 1 is: Specifically, a filter capacitor is provided on the high-frequency lead pad 24, and the filter capacitor is connected in series with the high-frequency lead pad 24.

[0054] By adopting the above technical solution, the low-frequency signals passing through the high-frequency voice coil 3 are filtered, so that the signal input is frequency-divided and can be flexibly adjusted according to performance; at the same time, the high-frequency voice coil 3 can also not be filtered to provide a stronger synchronous signal for the bass drive.

[0055] Specifically, a filter inductor is provided on the bass lead pad 23, and the filter inductor is connected in series with the bass lead pad 23.

[0056] By adopting the above technical solution, the high-frequency signals passing through the bass voice coil 7 can be filtered, and the interference signals in the high-frequency part can be filtered out, making the acoustic frequency response curve in the high-frequency part relatively flat; or the bass voice coil 7 can not be filtered, and it can be flexibly adjusted according to the application scenario.

[0057] Embodiment 5

[0058] Furthermore, a method for realizing a high-low frequency integrated actuator according to the present invention includes the following steps:

[0059] (1). The U-shaped iron 11, the magnet 10 and the washer 9 form a magnetic circuit driving structure to provide a driving magnetic field;

[0060] (2). The high-frequency plastic bracket 1 is arranged inside the low-frequency plastic bracket 4, and the two are connected by the high-frequency elastic wave 2 to provide a mounting surface for the high-frequency voice coil 3 and the low-frequency voice coil 7;

[0061] (3). A set of positive and negative leads of the bass voice coil 7 are welded on the wiring board 81 for the input of audio signals;

[0062] (4). The other set of positive and negative leads of the bass voice coil 7 are respectively welded on the bass lead pads 23 of the first elastic wave 21 and the second elastic wave 22, and the positive and negative leads of the high-frequency voice coil 3 are respectively welded on the high-frequency lead pads 24 of the first elastic wave 21 and the second elastic wave 22, realizing the parallel connection of the bass voice coil 7 and the high-frequency voice coil 3.

[0063] In summary, the present invention adopts the combination of high and low frequencies to achieve both high and low frequencies in one actuator, increase the frequency bandwidth, and meet the requirements of higher acoustic performance; in the present invention, the high-frequency voice coil 3 is arranged inside the low-frequency voice coil 7, and the high frequency does not affect the low-frequency vibration and can be independent of the low-frequency vibration; in the present invention, the high-frequency voice coil 3 and the low-frequency voice coil 7 share the magnet 10, improving the utilization rate of magnetic energy and effectively reducing the cost; in the present invention, the high-frequency elastic wave 2 is a conductive metal component, and the high-frequency elastic wave 2 includes the symmetrically arranged first elastic wave 21 and the second elastic wave 22. The high-frequency lead pad 24 is arranged on the inner side of the first elastic wave 21, and the bass lead pad 23 is arranged on the outer side of the first elastic wave 21. The structure of the second elastic wave 22 is the same as that of the first elastic wave 21. The high-frequency elastic wave 2 provides elasticity for the vibration and also plays a role in conducting electricity, realizing the parallel connection of the high-frequency voice coil 3 and the low-frequency voice coil 7; in the present invention, the high-frequency voice coil 3 and the low-frequency voice coil 7 are connected in parallel, and the audio signals can be well synchronized and input into the high and low frequency parts.

[0064] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high and low tone integrated exciter, comprising a chassis, characterized in that: Inside the chassis is connected with a U-shaped iron. Inside the U-shaped iron is provided with a magnet. Above the magnet is provided with a washer. Above the U-shaped iron inside the chassis is provided with a bass spider. Connected to the inner ring of the bass spider is a bass voice coil located outside the washer. Connected to the upper end of the bass voice coil is a bass plastic bracket. Inside the bass plastic bracket is provided with a treble plastic bracket. The treble plastic bracket and the bass plastic bracket are connected by a treble spider. Below the treble plastic bracket is provided with a treble voice coil located inside the washer; The treble spider is a conductive metal component, and the treble spider includes a first spider and a second spider arranged symmetrically. Inside the first spider is provided with a treble lead pad. Outside the first spider is provided with a bass lead pad. The structure of the second spider is the same as that of the first spider; On the chassis is provided with a wiring board. On the bass voice coil are provided two groups of positive and negative leads. One group of positive and negative leads is welded on the wiring board. The other group of positive and negative leads is respectively welded on the bass lead pads of the first spider and the second spider. The positive and negative leads of the treble voice coil are respectively welded on the treble lead pads of the first spider and the second spider.

2. The integrated exciter with high and low tones according to claim 1, characterized in that: The treble spider, the bass plastic bracket and the treble plastic bracket are formed by injection molding.

3. The integrated woofer and tweeter exciter according to claim 1, characterized in that: The bass voice coil includes a voice coil and a bobbin. Among them, the voice coil is connected to the lower end of the bobbin. The upper end of the bobbin is connected to the bass plastic bracket. The structure of the treble voice coil is the same as that of the bass voice coil.

4. The integrated woofer and tweeter exciter according to claim 3, characterized in that: On the bobbin of the bass voice coil are provided a number of heat dissipation holes.

5. An integrated woofer and tweeter exciter according to claim 1, characterized in that: Above the bass spider is provided with a bass surround. The outer ring of the bass surround is connected to the chassis. The inner ring of the bass surround is connected to the bass voice coil.

6. The integrated exciter with high and low tones according to claim 1, characterized in that: On the treble lead pad is provided a filter capacitor.

7. The integrated exciter with high and low tones according to claim 1, characterized in that: On the bass lead pad is provided a filter inductor.

8. A method for implementing a high and low pitch integrated actuator according to any one of claims 1-7, characterized in that, Including the following steps: (1). The U-shaped iron, the magnet and the washer form a magnetic circuit drive structure to provide a driving magnetic field; (2). The treble plastic bracket is arranged inside the bass plastic bracket. The two are connected by a treble spider to provide a mounting surface for the treble voice coil and the bass voice coil; (3). One group of positive and negative leads of the bass voice coil is welded on the wiring board for the input of audio signals; (4). The other group of positive and negative leads of the bass voice coil are respectively welded on the bass lead pads of the first spider and the second spider. The positive and negative leads of the treble voice coil are respectively welded on the treble lead pads of the first spider and the second spider to realize the parallel connection of the bass voice coil and the treble voice coil.

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