A speaker system

Abstract

The present invention discloses a speaker system, which can have a good low-frequency response without requiring a large box, and can effectively improve the efficiency of the speaker system, thereby increasing the sound pressure output of the system. A speaker system comprises a box and a plurality of speakers arranged in parallel in the box, each of the speakers comprises a basin, a diaphragm arranged on the basin, and a voice coil for driving the diaphragm to vibrate, the front faces of the diaphragms of the speakers are arranged opposite to each other, a sound cavity is formed between the front faces of the diaphragms, the sound cavity is connected to the outside of the box, and each of the basins is located between the back face of the corresponding diaphragm and the inner wall of the box.

Description

Technical Field

[0001] The invention belongs to the field of loudspeakers and relates to a loudspeaker system. Background Art

[0002] For a traditional speaker system, such as a speaker system for reducing distortion and changing characteristic curve disclosed in Chinese patent CN104661163B, the speaker system includes a panel, a woofer, a tweeter, a midrange speaker, a bass resonance chamber, a tweeter cover, and a midrange resonance chamber; wherein the woofer is fixed to the lower part of the panel; the tweeter is fixed to the middle part of the panel; the midrange speaker is fixed to the upper part of the panel; the bass resonance chamber is a cylindrical chamber with an opening at the front and a closed rear end; the front open end face of the bass resonance chamber is sealed and fixed to the lower part of the rear panel of the panel, and the axis of the bass resonance chamber coincides with the axis of the woofer. Among them, the installed speakers are all independent, the low-frequency response is limited by the volume of the box, and the efficiency is not high, and the power amplifier needs to provide more power to improve the sound pressure level of the system. Summary of the invention

[0003] In view of the above problems, the present invention provides a speaker system which does not require a large cabinet to have a good low-frequency response and can effectively improve the efficiency of the speaker system, thereby increasing the sound pressure output of the system.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A speaker system comprises a box and a plurality of speakers connected in parallel in the box, each of the speakers comprising a basin, a diaphragm arranged on the basin and a voice coil for driving the diaphragm to vibrate, the front faces of the diaphragms of the speakers are arranged opposite to each other, a sound cavity is formed between the front faces of the diaphragms, the sound cavity is connected to the outside of the box, and each of the basins is located between the back face of the corresponding diaphragm and the inner wall of the box.

[0006] Furthermore, each of the loudspeakers further comprises a capacitor, and the capacitor and the voice coil are connected in series.

[0007] Furthermore, the capacitor is located between the corresponding basin frame and the inner wall of the box.

[0008] Furthermore, the sound cavity is connected to the outside of the box through a waveguide.

[0009] Furthermore, the speaker system also includes a bracket fixedly disposed in the box, each of the speakers is mounted on the bracket, and the waveguide is fixedly connected to the bracket or formed integrally with the bracket.

[0010] Furthermore, the basin frame of each speaker is fixedly connected to the bracket, and the sound cavity is formed between the front side of the diaphragm and the bracket.

[0011] Furthermore, the bracket is fixedly connected to the inner wall of the box body by screws.

[0012] Furthermore, one side of the sound cavity is connected to the outside of the box through a waveguide.

[0013] Furthermore, at least two of the loudspeakers are arranged in mirror symmetry.

[0014] Specifically, the speaker is a woofer.

[0015] The present invention adopts the above solution, which has the following advantages compared with the prior art:

[0016] Installing multiple speakers in a special parallel structure in the cabinet increases the efficiency of the speaker system and improves the low-frequency output of the speaker system. It does not require a large cabinet to have a good low-frequency response and can effectively improve the efficiency of the speaker system, thereby increasing the sound pressure output of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 is a structural schematic diagram of a speaker system of the present invention;

[0019] Figure 2 It is a front view of a speaker system of the present invention after omitting the cabinet;

[0020] Figure 3 A top view of a speaker system of the present invention after the cabinet is omitted;

[0021] Figure 4 The frequency response of the speaker system of the present invention is compared with the frequency response of a traditional speaker.

[0022] in:

[0023] 1. Cabinet; 2. Speaker; 21. Basin; 22. Diaphragm; 23. Voice coil; 24. Capacitor; 3. Sound cavity; 4. Waveguide; 41. Tube wall; 5. Inner cavity; 6. Bracket. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0025] Reference Figures 1 to 3 As shown, this embodiment provides a speaker system, specifically a speaker system of a push-push structure. The speaker system includes a box 1 and a plurality of woofers 2 connected in parallel in the box 1, at least two of which are arranged in mirror symmetry. Each woofer 2 includes a basin frame 21, a diaphragm 22 arranged on the basin frame 21, and a voice coil 23 for driving the diaphragm 22 to vibrate. The front faces of the diaphragms 22 of each woofer 2 are arranged opposite to each other, and a sound cavity 3 is formed between each diaphragm 22, which is connected to the outside of the box 1. Each basin frame 21 is located between the back face of the corresponding diaphragm 22 and the inner wall of the box 1. Each woofer 2 also includes a capacitor 24, and the capacitor 24 and the voice coil 23 are connected in series through a wire. In the present invention, the "front face of the diaphragm" refers to the side surface of the diaphragm that is far away from the basin frame and the magnetic circuit system, and the "back face of the diaphragm" refers to the side surface that faces the basin frame and the magnetic field system and is far away from the basin frame and the magnetic furnace system.

[0026] Specific as Figure 1 As shown, the speaker system in this embodiment includes two woofers 2 connected in parallel, that is, the positive electrodes of the two woofers 2 are connected to each other, the negative electrodes of the two woofers 2 are connected to each other, and the voice coil 23 of each woofer 2 is respectively connected in series with a capacitor 24. The two woofers 2 are arranged in mirror symmetry, and the front faces of the diaphragms 22 of the two woofers 2 are opposite to each other, and the sound cavity 3 is located between the front faces of the two diaphragms 22.

[0027] The speaker system includes a bracket 6 fixedly arranged in the box 1. Figure 2 As shown, the bracket 6 and the inner walls of the box 1 are fixedly connected by screws. Each woofer 2 is arranged on the bracket 6, and the outer edge of its basin frame 21 is fixedly connected to the bracket 6, and the above-mentioned sound cavity 3 is surrounded by the bracket 6. A waveguide 4 is formed on the upper part of the bracket 6, and the waveguide 4 and the sound cavity 3 are connected to each other and thus connected to the outside of the box 1. That is, the sound cavity 3 is connected to the outside through the waveguide 4, so that the sound in the sound cavity 3 is output. In addition, only one side of the sound cavity 3 is connected to the outside of the box 1 through a waveguide 4, that is, the sound is output only from one waveguide 4. An opening for setting the waveguide 4 is opened on the box 1, and the other parts are basically sealed. One end of the tube wall 41 of the waveguide 4 is fixedly connected to the opening of the box 1, and the other end is fixedly connected to the basin frame 21 of each woofer 2. The above-mentioned capacitor 24 is specifically located between the back of the corresponding basin frame 21 and the inner wall of the box.

[0028] Reference Figure 2 As shown, the present embodiment Figure 1 The frequency response of the speaker system shown in the figure and the traditional speaker system (including two independent speakers) were tested and compared. Figure 1 The frequency response curve of the speaker system shown in the figure is the frequency response curve of the traditional speaker system. Figure 2 As shown, this embodiment Figure 1 The speaker system shown has a higher low frequency response than conventional speaker systems.

[0029] In the present invention, the voice coil 23 of each woofer 2 is first connected in series with the capacitor 24, and then the woofers 2 with multiple capacitors 24 connected in series are connected in parallel and output through the waveguide 4, thereby increasing the efficiency of the woofer 2 system and improving the low-frequency output of the woofer 2 system. Without the need for a large cabinet 1, a good low-frequency response can be achieved, and the efficiency of the speaker system can be effectively improved, thereby increasing the sound pressure output of the woofer system.

[0030] The above embodiment is only for illustrating the technical concept and features of the present invention, and is a preferred embodiment. Its purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention. Any equivalent transformation or modification made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A speaker system, comprising a box and a plurality of speakers arranged in the box and connected in parallel, each of the speakers comprising a basin frame, a diaphragm arranged on the basin frame and a voice coil for driving the diaphragm to vibrate, characterized in that: The front sides of the diaphragms of the speakers are arranged opposite to each other, and a sound cavity is formed between the front sides of the diaphragms, and the sound cavity is connected to the outside of the box. Each of the basins is located between the back side of the corresponding diaphragm and the inner wall of the box. Each of the speakers also includes a capacitor, which is connected in series with the voice coil. The capacitor is arranged on the basin and is located between the back side of the basin and the inner wall of the box. The speaker system also includes a bracket fixedly arranged in the box, and the bracket and the inner wall of the box are fixedly connected by screws. Each of the speakers is installed on the bracket, and a single waveguide is formed on the upper part of the bracket. The single waveguide and the sound cavity are connected to each other, and only one side of the sound cavity is connected to the outside of the box through a waveguide, and the waveguide is a part of the bracket. Only one opening is opened on the box, and the other parts of the box are sealed. One end of the tube wall of the single waveguide is fixedly connected to the single opening of the box, and the other end is fixed to the basin of each speaker.

2. The speaker system according to claim 1, characterized in that: The sound cavity is formed between the front surface of the diaphragm and the bracket.

3. The speaker system according to claim 1, characterized in that: At least two of the loudspeakers are arranged in mirror symmetry.

4. The loudspeaker system according to any one of claims 1 to 3, characterized in that: The speaker is a woofer.

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