Sound box structure with multiple speaker units

Abstract

The application discloses a speaker box structure with multiple speaker units, comprising a speaker box shell composed of a speaker box upper cover and a speaker box lower cover, wherein the speaker box shell comprises a first opening and a second opening. A first speaker unit and a second speaker unit are assembled between the speaker box upper cover and the speaker box lower cover, so that a diaphragm of the first speaker unit is arranged at the first opening and a diaphragm of the second speaker unit is arranged at the second opening. The first speaker unit and the second speaker unit share an internal volume of the speaker box shell, and no diaphragm cavity is arranged in the internal volume. The diaphragms of the first speaker unit and the second speaker unit move in phase during operation and operate at a rated power.

Description

Technical Field

[0001] This invention relates to the field of acoustic component technology, specifically a speaker enclosure structure with multiple loudspeaker units. Background Technology

[0002] A loudspeaker is a transducer that converts electrical signals into sound signals, and is an important acoustic component in electronic products. A loudspeaker module typically includes a housing, a magnetic circuit system housed within the housing, and a vibration system. The vibration system includes a diaphragm and a voice coil positioned beneath the diaphragm. The voice coil drives the diaphragm to produce sound under the vibration of the magnetic circuit system.

[0003] Existing speaker enclosures typically assemble the speaker driver between the top and bottom covers of the enclosure, with the driver fixed to the inside of the top cover. However, when a single driver is installed in a closed enclosure, the enclosure cannot withstand the amplitude of the rated power, resulting in noise. When two drivers are installed in a closed enclosure, if only one driver operates and the other does not (passive radiation), the speaker enclosure cannot withstand the amplitude of the rated power (rated power is defined per driver, e.g., 2W for a single driver, 4W for both drivers), also resulting in noise. Summary of the Invention

[0004] The main objective of this invention is to provide an improved speaker enclosure structure with multiple speaker units to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A speaker enclosure structure with multiple drivers, comprising:

[0007] A speaker enclosure, comprising a top cover and a bottom cover, wherein the speaker enclosure includes a first opening and a second opening; and

[0008] A first speaker unit and a second speaker unit are assembled between the upper cover and the lower cover of the speaker enclosure, such that the diaphragm of the first speaker unit is disposed in the first opening and the diaphragm of the second speaker unit is disposed in the second opening, wherein the first speaker unit and the second speaker unit share the internal volume of the speaker enclosure and no diaphragm is provided in the internal volume, and wherein the diaphragms of the first speaker unit and the second speaker unit move in phase during operation and operate at rated power.

[0009] According to an embodiment of the present invention, the first loudspeaker unit and the second loudspeaker unit have the same diaphragm area.

[0010] According to an embodiment of the present invention, the first speaker unit and the second speaker unit are the same speaker unit.

[0011] According to an embodiment of the present invention, the speaker structure is a sealed enclosure with vent holes, and the exterior is covered with a polyester film.

[0012] According to an embodiment of the present invention, both the first loudspeaker unit and the second loudspeaker unit have independent diaphragms, voice coils, frames, magnetic return elements, and terminals, and can independently input signals to control the diaphragms.

[0013] According to an embodiment of the present invention, the first surface of the speaker cover includes the first opening, and the second surface of the speaker cover relative to the first surface includes the second opening.

[0014] According to an embodiment of the present invention, the first speaker unit and the second speaker unit are assembled back-to-back between the upper cover and the lower cover of the speaker enclosure, wherein the diaphragm of the first speaker unit is disposed in the first opening of the upper cover of the speaker enclosure, and the diaphragm of the second speaker unit is disposed in the second opening of the lower cover of the speaker enclosure.

[0015] According to an embodiment of the present invention, the yoke of the first speaker unit and the yoke of the second speaker unit are in direct contact, forming a back-to-back stacked configuration.

[0016] According to an embodiment of the present invention, the resonant frequency of either the first speaker unit or the second speaker unit is less than the resonant frequency of either the first speaker unit or the second speaker unit assembled in the speaker housing, and the resonant frequency of either the first speaker unit or the second speaker unit assembled in the speaker housing is less than the resonant frequency of the first speaker unit and the second speaker unit assembled in the speaker housing and operating in phase. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the appearance of a speaker structure with multiple units according to the first embodiment of the present invention.

[0018] Figure 2 for Figure 1 An exploded view of the midspeaker enclosure structure.

[0019] Figure 3 for Figure 1 A schematic diagram of the I-I' section of the midspeaker enclosure structure.

[0020] Figure 4 This is a schematic diagram illustrating the appearance of a speaker structure with multiple units according to a second embodiment of the present invention.

[0021] Figure 5 for Figure 4 An exploded view of the midspeaker enclosure structure.

[0022] Figure 6 for Figure 4 Schematic diagram of the II-II' section of the midrange speaker enclosure.

[0023] Explanation of reference numerals in the attached drawings: 1, 1a - Speaker cabinet structure; 10 - Speaker cabinet housing; 110 - Speaker cabinet top cover; 110a - First surface; 112 - First opening; 114 - Vent hole; 116 - Mylar polyester film; 120 - Speaker cabinet bottom cover; 120a - Second surface; 122 - Second opening; 210 - First loudspeaker driver; 220 - Second loudspeaker driver; CA - External signal line; CR - Resonant cavity; D1 - Diaphragm; D2 - Voice coil; D3 - Frame; D4 - Magnetic return; D5 - Terminal; Y - Yoke. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0025] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] Please see Figures 1 to 3 ,in, Figure 1 This is a schematic diagram illustrating the appearance of a speaker structure with multiple drivers according to the first embodiment of the present invention. Figure 2 for Figure 1 An exploded view of the midspeaker enclosure structure. Figure 3 for Figure 1 A schematic diagram of the I-I' section of the midspeaker enclosure structure. (See diagram below.) Figures 1 to 3 As shown, the speaker structure 1 includes a speaker housing 10. According to a first embodiment of the present invention, the speaker housing 10 includes a speaker upper cover 110 and a speaker lower cover 120 that are separable from each other, which may be made of the same plastic, polymer or other materials, but are not limited thereto.

[0028] According to a first embodiment of the present invention, the first surface 110a of the speaker top cover 110 includes a first opening 112, and the second surface 120a of the speaker bottom cover 120 relative to the first surface 110a includes a second opening 122. According to the first embodiment of the present invention, the first opening 112 and the second opening 122 are the same in size and shape, and are aligned vertically.

[0029] According to the first embodiment of the present invention, such as Figure 2 and Figure 3 As shown, the speaker structure 1 further includes a first speaker unit 210 and a second speaker unit 220. According to the first embodiment of the present invention, the first speaker unit 210 and the second speaker unit 220 are speaker units of the same specifications.

[0030] According to a first embodiment of the present invention, both the first loudspeaker driver 210 and the second loudspeaker driver 220 have independent diaphragms D1, voice coils D2, frames D3, magnetrons D4, and terminals D5, and can be independently input with signals via external signal lines CA to control the diaphragm D1. According to the first embodiment of the present invention, the first loudspeaker driver 210 and the second loudspeaker driver 220 have the same diaphragm area.

[0031] According to a first embodiment of the present invention, a first speaker unit 210 and a second speaker unit 220 are assembled back-to-back between a speaker cabinet upper cover 110 and a speaker cabinet lower cover 120, wherein the diaphragm D1 of the first speaker unit 210 is disposed in a first opening 112, and the diaphragm D1 of the second speaker unit 220 is disposed in a second opening 122.

[0032] According to a first embodiment of the present invention, the first speaker unit 210 and the second speaker unit 220 are respectively fixed to the inner annular fixing flanges surrounding the first opening 112 and the second opening 122 by adhesive through their frames D3. According to the first embodiment of the present invention, the yoke Y of the first speaker unit 210 and the yoke Y of the second speaker unit 220 are in direct contact, forming a back-to-back stacked configuration. According to the first embodiment of the present invention, the yoke Y of the first speaker unit 210 and the yoke Y of the second speaker unit 220 can be fixed by adhesive.

[0033] According to a first embodiment of the present invention, after assembling the first loudspeaker unit 210 and the second loudspeaker unit 220, a sealed enclosure is formed and a resonant cavity CR is created. According to the first embodiment of the present invention, the first loudspeaker unit 210 and the second loudspeaker unit 220 share the internal volume of the speaker enclosure 10, and no diaphragm is provided within the shared internal volume.

[0034] According to a first embodiment of the present invention, the diaphragm D1 of the first loudspeaker driver 210 and the diaphragm D1 of the second loudspeaker driver 220 move in phase during operation (i.e., the diaphragms synchronously approach or move away from the speaker housing 10) and operate at rated power (e.g., 2W for a single driver and 4W for both drivers combined). Furthermore, according to the first embodiment of the present invention, the diaphragms of the first loudspeaker driver 210 and the second loudspeaker driver 220 can be controlled independently, or the first loudspeaker driver 210 and the second loudspeaker driver 220 can be configured in series or parallel using wires.

[0035] According to the first embodiment of the present invention, after assembling the first speaker unit 210 and the second speaker unit 220, the speaker box structure is a sealed box. However, in order to balance the pressure, a vent hole 114 can be provided, and the outside is attached with Mylar polyester film 116.

[0036] According to a first embodiment of the present invention, the resonant frequency of either the first speaker unit 210 or the second speaker unit 220 is less than the resonant frequency of either the first speaker unit 210 or the second speaker unit 220 assembled in the speaker housing 10, and is also less than the resonant frequency of the first speaker unit 210 and the second speaker unit 220 assembled in the speaker housing 10 and operating in phase.

[0037] For example, if the first speaker driver 210 or the second speaker driver 220 is the same driver and has the same resonant frequency f1, and one of the first speaker driver 210 or the second speaker driver 220 is assembled into the speaker housing 10, its resonant frequency during operation is f2. If the first speaker driver 210 and the second speaker driver 220 are assembled in the speaker housing 10 and operate in phase, their resonant frequency is f3. Therefore, f1 <f2<f3。

[0038] Please see Figures 4 to 6 ,in, Figure 4 This is a schematic diagram illustrating the appearance of a speaker cabinet structure with multiple drivers according to a second embodiment of the present invention. Figure 5 for Figure 4 An exploded view of the midspeaker enclosure structure. Figure 6 for Figure 4 A schematic diagram of the II-II' section of the midspeaker enclosure structure, in which the same components, areas and layers are still represented by the same symbols.

[0039] like Figures 4 to 6 As shown, Figures 4 to 6 The speaker structure 1a and Figures 1 to 3 The difference in speaker structure 1 is that Figures 4 to 6 The first speaker unit 210 and the second speaker unit 220 of the speaker enclosure structure 1a are arranged side by side on the same surface. The speaker enclosure structure 1a also includes a speaker housing 10. According to a second embodiment of the present invention, the speaker housing 10 includes a speaker upper cover 110 and a speaker lower cover 120 that can be separated from each other, and they can be made of the same plastic, polymer or other materials, but are not limited thereto.

[0040] According to a second embodiment of the present invention, the first surface 110a of the speaker cover 110 includes a first opening 112a and a second opening 112b. According to the second embodiment of the present invention, the first opening 112a and the second opening 112b are the same size and shape, and are arranged symmetrically on the left and right.

[0041] According to a second embodiment of the present invention, such as Figure 5 and Figure 6 As shown, the speaker structure 1a also includes a first speaker unit 210 and a second speaker unit 220. According to the second embodiment of the present invention, the first speaker unit 210 and the second speaker unit 220 are speaker units of the same specifications.

[0042] According to a second embodiment of the present invention, both the first loudspeaker unit 210 and the second loudspeaker unit 220 have independent diaphragms D1, voice coils D2, housings D3, magnetrons D4, and terminals D5, and can be independently input with signals via an external signal line CA to control the diaphragm D1. According to the second embodiment of the present invention, the first loudspeaker unit 210 and the second loudspeaker unit 220 have the same diaphragm area.

[0043] According to a second embodiment of the present invention, the first speaker unit 210 and the second speaker unit 220 are assembled in parallel between the upper cover 110 and the lower cover 120 of the speaker enclosure, wherein the diaphragm D1 of the first speaker unit 210 is disposed in the first opening 112a, and the diaphragm D1 of the second speaker unit 220 is disposed in the second opening 112b.

[0044] According to a second embodiment of the present invention, the first speaker unit 210 and the second speaker unit 220 are respectively fixed to the inner annular fixing flanges surrounding the first opening 112a and the second opening 112b by adhesive through their frames D3. According to the second embodiment of the present invention, the yoke Y of the first speaker unit 210 and the yoke Y of the second speaker unit 220 will not be in direct contact.

[0045] According to a second embodiment of the present invention, after assembling the first loudspeaker unit 210 and the second loudspeaker unit 220, a sealed enclosure is formed and a resonant cavity CR is created. According to the second embodiment of the present invention, the first loudspeaker unit 210 and the second loudspeaker unit 220 share the internal volume of the speaker enclosure 10, and no diaphragm is provided within the shared internal volume.

[0046] According to a second embodiment of the present invention, the diaphragm D1 of the first loudspeaker driver 210 and the diaphragm D1 of the second loudspeaker driver 220 move in phase during operation (i.e., the diaphragms synchronously approach or move away from the speaker housing 10) and operate at rated power (e.g., 2W for a single driver and 4W for both drivers combined). Furthermore, according to the second embodiment of the present invention, the diaphragms of the first loudspeaker driver 210 and the second loudspeaker driver 220 can be controlled independently, or the first loudspeaker driver 210 and the second loudspeaker driver 220 can be configured in series or parallel using wires.

[0047] According to the second embodiment of the present invention, after assembling the first speaker unit 210 and the second speaker unit 220, the speaker box structure is a sealed box. However, in order to balance the pressure, a vent hole 114 can be provided, and the outside is attached with Mylar polyester film 116.

[0048] According to a second embodiment of the present invention, the resonant frequency of either the first speaker unit 210 or the second speaker unit 220 is less than the resonant frequency of either the first speaker unit 210 or the second speaker unit 220 assembled in the speaker housing 10, and is also less than the resonant frequency of the first speaker unit 210 and the second speaker unit 220 assembled in the speaker housing 10 and operating in phase.

[0049] For example, if the first speaker driver 210 or the second speaker driver 220 is the same driver and has the same resonant frequency f1, and one of the first speaker driver 210 or the second speaker driver 220 is assembled into the speaker housing 10, its resonant frequency during operation is f2. If the first speaker driver 210 and the second speaker driver 220 are assembled in the speaker housing 10 and operate in phase, their resonant frequency is f3. Therefore, f1 <f2<f3。

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A speaker enclosure structure having multiple speaker units, characterized in that, Include: A speaker housing includes a speaker top cover and a speaker bottom cover, wherein the speaker housing includes a first opening and a second opening; A first speaker unit and a second speaker unit are assembled between the upper cover and the lower cover of the speaker enclosure, such that the diaphragm of the first speaker unit is disposed in the first opening, and the diaphragm of the second speaker unit is disposed in the second opening, wherein the first speaker unit and the second speaker unit share the internal volume of the speaker enclosure. Furthermore, no diaphragm is provided within the internal volume, and the diaphragms of the first speaker unit and the second speaker unit move in phase during operation and operate at rated power. Both the first loudspeaker unit and the second loudspeaker unit have independent diaphragms, voice coils, frames, magnetic return, and terminals, and can independently input signals to control the diaphragm; The resonant frequency of either the first speaker unit or the second speaker unit is less than the resonant frequency of either the first speaker unit or the second speaker unit assembled in the speaker housing, and the resonant frequency of either the first speaker unit or the second speaker unit assembled in the speaker housing is less than the resonant frequency of the first speaker unit and the second speaker unit assembled in the speaker housing and operating in phase.

2. The speaker enclosure structure with multiple speaker units according to claim 1, characterized in that, The first speaker unit and the second speaker unit have the same diaphragm area.

3. The speaker enclosure structure with multiple speaker units according to claim 1, characterized in that, The first speaker unit and the second speaker unit are the same speaker unit.

4. The speaker enclosure structure with multiple speaker units according to claim 1, characterized in that, The speaker enclosure is a sealed box with vent holes, and the exterior is covered with a polyester film.

5. The speaker enclosure structure having multiple speaker units according to claim 1, characterized in that, The first surface of the speaker cover includes the first opening, and the second surface of the speaker cover relative to the first surface includes the second opening.

6. The speaker enclosure structure having multiple speaker units according to claim 5, characterized in that, The first speaker unit and the second speaker unit are assembled back-to-back between the upper cover and the lower cover of the speaker enclosure, wherein the diaphragm of the first speaker unit is disposed in the first opening of the upper cover of the speaker enclosure, and the diaphragm of the second speaker unit is disposed in the second opening of the lower cover of the speaker enclosure.

7. The speaker enclosure structure having multiple speaker units according to claim 6, characterized in that, The yokes of the first speaker unit and the second speaker unit are in direct contact, forming a back-to-back stacked configuration.

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