Integrated sound box with multi-frequency division structure

Abstract

The utility model discloses an integrated sound box with multi-frequency division structure, including the sound box main part that constitutes by the shell main part, treble unit loudspeaker, medium unit loudspeaker and first bass unit loudspeaker, second bass unit loudspeaker, the shell main part is cubic structure, forms the internal cavity in the inside, and the shell main part is set up and is used for each loudspeaker and internal cavity intercommunication's through -hole in front side and both sides, and the front side of shell main part is equipped with the front stage panel, and the medium unit loudspeaker is embedded on the front stage panel, and the treble unit loudspeaker is embedded on the same face of medium unit loudspeaker above position, and the first bass unit loudspeaker, second bass unit loudspeaker mirror image is transversely arranged in the both sides of shell main part, and the internal cavity is equipped with the PCB that communicates with each loudspeaker. The utility model solves the problem that the sound box in the prior art cannot realize low frequency equalization feeling.

Description

Technical Field

[0001] This utility model relates to the field of speakers, and in particular to an integrated speaker with a multi-frequency crossover structure. Background Technology

[0002] A speaker is a device that converts audio signals into sound. It is the terminal of the entire audio system, and its function is to convert audio electrical energy into corresponding sound energy and radiate it into space. It is an extremely important component of the audio system, responsible for converting electrical signals into sound signals for direct listening by the human ear.

[0003] In existing technology, there are various types of speakers, such as floorstanding, desktop, and hanging speakers. The current structure of a single speaker mainly consists of an outer shell and externally mounted audio drivers, with internal components such as PCBs. The audio drivers can be combined in multiple ways, such as a single mid-range and tweeter group, or a single low-frequency driver group. However, there is a lack of a speaker structure that simultaneously possesses all three frequency ranges and has symmetrical bass. In the use of existing speakers, the low frequencies at the bottom (or top) are only present on one side, which cannot achieve a balanced low-frequency listening experience. Moreover, based on actual sound recording (including live performances), the listening experience of a low frequency on one side does not reflect the actual recording conditions.

[0004] In view of this, this technical solution proposes an integrated speaker with a multi-frequency crossover structure. It adopts a symmetrical dual-low frequency integrated speaker, which can achieve a sound field effect close to the actual sound field in a single speaker structure. Furthermore, according to the placement of low-frequency instruments (such as drums), the low-frequency speakers on both sides are placed horizontally to further simulate the real sound reception. The overall structure of the speaker is simple and easy to assemble, disassemble and maintain. Utility Model Content

[0005] The present invention aims to at least partially solve one of the technical problems in the related art. Therefore, the main objective of this invention is to provide an integrated speaker with a multi-crossover structure, aiming to solve the problem that existing speakers cannot achieve a balanced low-frequency sound.

[0006] To achieve the above objectives, this utility model provides an integrated speaker with a multi-frequency crossover structure, comprising a speaker body consisting of a main shell, a tweeter, a midrange driver, a first woofer, and a second woofer.

[0007] The main body of the outer shell has a cubic structure with an internal cavity. The main body of the outer shell has through holes on the front and both sides for each speaker to communicate with the internal cavity. The front side of the main body of the outer shell has a front panel. The midrange unit speaker is embedded in the front panel. The tweeter speaker is embedded above the midrange unit speaker on the same side. The first woofer speaker and the second woofer speaker are mirror images of each other on both sides of the main body of the outer shell. The internal cavity has a PCB that communicates with each speaker.

[0008] As a further improvement of this utility model, the bottom of the front panel is provided with an audio interface, a receiving antenna, a microphone hole, and a gain adjustment knob that are connected to the PCB.

[0009] As a further improvement of this utility model, the front panel and the outer shell body are detachably connected.

[0010] As a further embodiment of this utility model, the outer sides of the main body of the outer shell are recessed to form an inner edge, and a fixing hole is provided on the inner edge. The outer rings of the first bass unit speaker and the second bass unit speaker form an outer edge that cooperates with the inner edge, and are fixed to the fixing hole by a fixing member on the outer edge.

[0011] As a further improvement of this utility model, a sealing layer is provided between each unit speaker and the main body of the outer shell.

[0012] As a further embodiment of this utility model, the inner back ring of the outer shell body is recessed to form a back plate mounting groove, and the back plate mounting groove is provided with mounting holes for fixing with an external fixing plate.

[0013] The beneficial effects of this utility model are as follows:

[0014] Existing speakers, due to their single-sided woofer configuration, suffer from low-frequency imbalance and sound image distortion, failing to reproduce a realistic sound field. This technical solution achieves a symmetrical dual-woofer structure by mirroring the first and second woofers on either side of the main body of the enclosure. Their synchronized vibration cancels out enclosure resonance, simulating the characteristics of a real drum-like instrument. Simultaneously, the tweeter and midrange drivers are positioned vertically on the same side of the front panel, with internal cavity perforations ensuring balanced diffusion of high, mid, and low frequencies. Structurally, the two woofers are precisely assembled using inner and outer edge fitting and locking fasteners. Combined with a sealing layer at the junction of the drivers and the enclosure, air leakage is completely eliminated, ensuring deep low-frequency extension. The detachable front panel simplifies speaker maintenance, and the rear panel mounting slots and holes support stable installation in various scenarios such as wall mounting and brackets. Ultimately, a balanced three-frequency response, realistic sound field, and noise-free listening experience are achieved in a single integrated speaker. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the technical solutions of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a front view of the speaker body in this utility model.

[0017] Figure 2 This is a schematic diagram of the speakers installed on the outer shell of this utility model.

[0018] Figure 3 This is a schematic diagram showing the distribution of various components from the back view of the speaker body in this utility model.

[0019] Figure 4 This is a schematic diagram of the disassembly structure of the product of this utility model.

[0020] Reference Name Reference Name 1 Sound box body 110 Audio interface 10 Housing body 111 Receiving antenna 100 Internal cavity 112 Microphone hole 101 PCB 113 Gain adjustment knob 102 Back plate assembly slot 12 Tweeter unit loudspeaker 103 Assembly hole 13 Midrange unit loudspeaker 104 Inner edge 141 First bass unit loudspeaker 105 Fixing hole 142 Second bass unit loudspeaker 106 Through hole 150 Outer edge 11 Front panel 151 Fixing member Detailed Implementation

[0021] as follows:

[0022] Please see the appendix Figures 1-4 ,

[0023] The main structure includes a speaker body (1) consisting of a shell body (10), a tweeter (12), a midrange horn (13), a first woofer (141), and a second woofer (142). The shell body (10) has a cubic structure and forms an internal cavity (100). The shell body (10) has through holes (106) on the front and sides for each horn to communicate with the internal cavity (100). The front of the shell body (10) is provided with a front panel (11). The midrange horn (13) is embedded in the front panel (11). The tweeter (12) is embedded above the midrange horn (13) on the same side. The first woofer (141) and the second woofer (142) are mirror images of each other on both sides of the shell body (10). The internal cavity (100) is provided with a PCB (101) that communicates with each horn.

[0024] The working principle is as follows:

[0025] Existing speakers, due to the presence of only a single-sided bass unit, suffer from an unbalanced low-frequency sound and fail to reproduce a realistic sound field. This technical solution mirrors the first bass unit speaker (141) and the second bass unit speaker (142) on both sides of the cubic shell (10), forming a symmetrical dual-low-frequency structure. This allows the bass units on both sides to vibrate and produce sound synchronously, thus canceling out the cabinet resonance and simulating the symmetrical sound source characteristics of drum-like instruments in a real-world setting. The tweeter speaker (12) and midrange speaker (13) are mounted on the same side of the front panel (11) (with the tweeter and midrange speakers arranged vertically). Combined with the through-holes (106) on the front and sides of the shell (10), this ensures that high, mid, and low frequencies are diffused through the internal cavity (100).

[0026] In terms of structural assembly, the outer ring of the through hole (106) of the main body of the outer shell (10) is recessed to form an inner edge (104). The inner edge (104) has a fixing hole (105). The outer ring of the first bass unit speaker (141) and the second bass unit speaker (142) forms an outer edge (150) that matches the inner edge (104). They are then locked by a fastener (151). Combined with the sealing glue layer at the joint between each unit speaker and the outer shell, the acoustic short circuit caused by air leakage is completely eliminated, ensuring the low-frequency extension. The front panel (11) and the main body of the outer shell (10) adopt a detachable connection structure, which facilitates the maintenance of the PCB (101) main board in the internal cavity (100). The back panel mounting slot (102) on the back supports flexible hanging installation. It achieves a balanced three-frequency and realistic sound field effect, especially solving the sound image shift problem caused by a single bass.

[0027] The assembly and disassembly process can be,

[0028] During assembly, align the outer edges (150) of the first bass unit speaker (141) and the second bass unit speaker (142) with the inner edges (104) of the through holes (106) on both sides of the housing body (10) to fit them together. Secure the outer edges (150) and the fixing holes (105) on the inner edges (104) with screws or other fasteners (151), and fill the joint with a sealant layer to prevent air leakage. Embed the midrange unit speaker (13) into the pre-drilled hole in the front panel (11), and install the tweeter speaker (12) on the same plane above it. Connect the front panel (11) of the integrated speaker to the front side of the housing body (10) using clips or screws. The detachable connection is used to fix the PCB (101) main board in the internal cavity (100), and connect the cables of the tweeter (12), midrange (13), and dual woofer unit speakers (141) (142) to the corresponding contacts of the PCB (101). The audio interface (110), receiving antenna (111), microphone hole (112) and gain adjustment knob (113) are installed at the bottom of the front panel (11) and connected to the PCB (101). The integrity of the sealant layer at the joint between all speakers and the housing is checked. The back plate mounting slot (102) on the back of the housing body (10) is locked to the external fixing plate through the mounting hole (103) to complete the overall encapsulation.

[0029] During disassembly, remove the mounting hole (103) fixing piece of the back panel mounting slot (102), remove the external fixing plate, disconnect the external connection lines such as the audio interface (110) and antenna (111), remove the fixing piece between the front panel (11) and the housing body (10), separate the panel and remove the midrange (13) and tweeter unit speaker (12), loosen the fixing piece (151) on both sides of the inner edge (104), remove the first woofer unit speaker (141) and the second woofer unit speaker (142) from the housing through hole (106), remove the residual sealant layer for subsequent reassembly, remove the PCB (101) main board from the internal cavity (100), and test or replace the connection lines of each unit speaker.

[0030] Reference Appendix Figure 2 In a preferred embodiment of the present invention, the bottom of the front panel (11) is provided with an audio interface (110), a receiving antenna (111), a microphone hole (112) and a gain adjustment knob (113) that are connected to the PCB (101).

[0031] In this design, the bottom of the front panel (11) integrates an audio interface (110), a receiving antenna (111), a microphone hole (112), and a gain adjustment knob (113). These components are all connected to the PCB (101) motherboard of the internal cavity (100) via wiring. The audio interface (110) is responsible for wired signal input, the receiving antenna (111) supports Bluetooth or Wi-Fi wireless connection, the microphone hole (112) has a built-in microphone to realize call or voice interaction functions, and the gain adjustment knob (113) allows the user to directly adjust the volume or signal strength.

[0032] Reference Appendix Figure 2 In a preferred embodiment of this utility model, the front panel (11) and the outer shell body (10) are detachable.

[0033] The preamp panel (11) and the main body (10) in this design adopt a detachable connection structure, allowing direct separation of the panel for internal maintenance or replacement of the midrange (13) and tweeter (12) speakers without disassembling the entire speaker enclosure. This significantly simplifies the circuit troubleshooting and component replacement process, ensuring that the sealant layer between each speaker unit and the enclosure is completely adhered after reassembly, maintaining consistent sound performance.

[0034] Reference Appendix Figure 3 , 4 In a preferred embodiment of the present invention: the outer shell body (10) has an inner edge (104) formed on both sides of the outer ring of the through hole (106), and a fixing hole (105) is provided on the inner edge (104). The outer ring of the first bass unit speaker (141) and the second bass unit speaker (142) forms an outer edge (150) that cooperates with the inner edge (104), and is fixed by the fixing member (151) on the outer edge (150) and the fixing hole (105).

[0035] The outer edge (150) of the bass unit speaker is precisely fitted with the inner edge (104) of the housing through hole (106), and then the fixing hole (105) is locked by the fixing piece (151) to ensure that the cabinet does not resonate and leak air when the speaker vibrates. With the help of the sealing glue layer, the acoustic short circuit phenomenon is isolated, ensuring the low frequency extension and sound purity.

[0036] Reference Appendix Figures 2-4 In a preferred embodiment of this utility model, a sealing layer is provided between each unit speaker and the outer shell body (10).

[0037] This technical solution fills the joints between each speaker unit and the housing with a sealant layer to completely seal the gaps and prevent air leakage, thus avoiding sound wave interference distortion and low-frequency energy leakage. It ensures that the speaker's vibration energy is used to drive the air, thereby guaranteeing sound purity and bass extension, and eliminating noise.

[0038] Reference Appendix Figure 3 In a preferred embodiment of the present invention, the inner back ring of the outer shell body (10) is recessed to form a back plate mounting groove (102), and the back plate mounting groove (102) is provided with mounting holes (103) for fixing with an external fixing plate.

[0039] In this design, the back panel mounting groove (102) formed by the recessed back of the outer shell (10) is connected to the external fixing plate through the mounting hole (103), allowing the speaker to be flexibly wall-mounted, embedded in a bracket, or floor-mounted, while keeping the back flat and without protrusions. This not only disperses the vibration pressure of the cabinet but also provides stable fixation for various scenarios, preventing displacement and damage to internal components.

[0040] The above are merely preferred embodiments of the present utility model and do not limit the patent scope of the present utility model. Any equivalent structural transformations made using the contents of the present utility model specification and drawings under the concept of the present utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An integrated speaker with a multi-frequency crossover structure, characterized in that, include The speaker enclosure consists of a main body, a tweeter, a midrange driver, a first woofer, and a second woofer. The main body of the outer shell has a cubic structure with an internal cavity. The main body of the outer shell has through holes on the front and both sides for each speaker to communicate with the internal cavity. The front side of the main body of the outer shell has a front panel. The midrange unit speaker is embedded in the front panel. The tweeter speaker is embedded above the midrange unit speaker on the same side. The first woofer speaker and the second woofer speaker are mirror images of each other on both sides of the main body of the outer shell. The internal cavity has a PCB that communicates with each speaker.

2. The integrated speaker with a multi-frequency crossover structure according to claim 1, characterized in that, The bottom of the front panel is equipped with an audio interface, receiving antenna, microphone hole and gain adjustment knob that are connected to the PCB.

3. The integrated speaker with a multi-frequency crossover structure according to claim 1, characterized in that, The front panel and the main body of the housing are detachably connected.

4. The integrated speaker with a multi-frequency crossover structure according to claim 1, characterized in that, On both sides of the main body of the outer shell, an inner edge is formed by recessing the outer ring of the through hole. A fixing hole is provided on the inner edge. The outer rings of the first bass unit speaker and the second bass unit speaker form an outer edge that cooperates with the inner edge and is fixed to the fixing hole by a fixing member on the outer edge.

5. The integrated speaker with a multi-frequency crossover structure according to claim 1, characterized in that, Each unit speaker is fitted with a sealant layer between its connection to the main body of the housing.

6. The integrated speaker with a multi-frequency crossover structure according to claim 1, characterized in that, The inner back ring of the main body of the outer shell is recessed to form a back plate mounting groove, and the back plate mounting groove is provided with mounting holes for fixing with an external fixing plate.

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