Waterproof coaxial sound box

Abstract

The invention relates to the technical field of coaxial sound boxes, in particular to a waterproof coaxial sound box which comprises a shell, a loudspeaker assembly and a power supply assembly are arranged in the shell, the loudspeaker assembly comprises a bass loudspeaker and a high-pitch loudspeaker, a support is fixed to the end face of the bass loudspeaker, the high-pitch loudspeaker is arranged on the support, and the power supply assembly is arranged on the support. The high pitch loudspeaker is erected on the outer side of the bass loudspeaker sound cavity and is coaxial with the bass loudspeaker, and the power supply assembly is arranged in the shell and is used for supplying power to the loudspeaker assembly and performing control on the loudspeaker assembly; the loudspeaker box has the advantages that the space occupied by the loudspeaker is reduced, and the waterproof capability of the loudspeaker box is improved.

Description

Technical Field

[0001] The present application relates to the technical field of coaxial speakers, and in particular to a waterproof coaxial speaker. Background Art

[0002] In the current market, coaxial speakers are widely used in various occasions as a high-end audio device. This type of speaker greatly improves the frequency range of the speaker by arranging high and low frequency speakers on the same axis. However, with the growing demand of consumers for portability and waterproof performance, existing coaxial speakers face challenges in miniaturization and waterproofing.

[0003] In the related technology, common coaxial speakers usually adopt a stacked structural design, that is, the tweeter is stacked in front of or opposite to the woofer, that is, a hole is made in the middle of the woofer, and a bracket is extended to fix the tweeter, and then the line of the tweeter passes through the hole to realize the routing.

[0004] With respect to the above-mentioned related technologies, there are the following problems: the large capacitors and inductors in the tweeter and woofer occupy extra space; the tweeter is built into the acoustic cavity of the woofer, occupying the acoustic cavity space of the woofer, affecting the sound quality of the woofer; the tweeter needs to be threaded through it, which is not conducive to complete sealing, and thus cannot be effectively waterproofed. Summary of the invention

[0005] In order to reduce the space occupied by the speaker and improve the waterproof ability of the speaker, the present application provides a waterproof coaxial speaker.

[0006] The present application provides a waterproof coaxial speaker adopting the following technical solution: A waterproof coaxial speaker comprises a shell, wherein a speaker assembly and a power supply assembly are arranged in the shell, wherein the speaker assembly comprises a woofer and a tweeter, wherein a bracket is fixed to the end face of the woofer, the tweeter is arranged on the bracket, the tweeter is mounted on the outside of the sound cavity of the woofer and is coaxially arranged with the woofer, and the power supply assembly is built into the shell for supplying power to and controlling the speaker assembly.

[0007] Preferably, a sealed cavity is formed in the shell, and two groups of speaker assemblies are provided, the two groups of speaker assemblies are symmetrically arranged, a wire hole is provided at the tail of the subwoofer, the wire hole is located inside the sealed cavity, and the wire holes of the two subwoofers are arranged opposite to each other so that the wire hole is built into the central area inside the sealed cavity.

[0008] Preferably, the bracket includes an annular frame and a mounting ring, the annular frame is fixed to the end of the woofer, a plurality of support rods are extended from the inner wall of the annular frame toward the center point, the outer peripheral wall of the mounting ring is fixed to the ends of the plurality of support rods, a positioning groove is provided on the side wall of the mounting ring, and the tweeter is plugged into and fits with the positioning groove.

[0009] Preferably, a wire groove is formed on the side wall of one of the support rods, and a connecting wire of the tweeter speaker is passed through the wire groove and connected to the power supply assembly.

[0010] Preferably, the shell includes a top cover, an outer frame, a bottom cover, a decorative panel and a sound-transmitting iron mesh, the outer frame is hollow, the top cover covers one end surface of the outer frame, the bottom cover covers the other end surface of the outer frame, the outer frame is provided with a first accommodating groove and a second accommodating groove, the decorative panel covers the first accommodating groove, the second accommodating groove is used to accommodate the speaker of the woofer and the tweeter, the woofer blocks the connection between the second accommodating groove and the sealed cavity, and the sound-transmitting iron mesh covers the notch of the second accommodating groove.

[0011] Preferably, the outer frame includes an upper frame and a lower frame, the first accommodating groove is opened on the upper frame, the second accommodating groove is opened on the lower frame, and the end faces between the upper frame and the lower frame are spliced ​​to form the outer frame.

[0012] Preferably, the power supply assembly includes a mounting seat, a battery, a circuit main board and an operation panel, the mounting seat is built into the upper frame, a mounting cavity is formed on the mounting seat, the mounting cavity is connected to the sealed cavity, the battery is installed inside the mounting cavity, the circuit main board is installed on the mounting seat, and the operation panel is fixed to the outer wall of the mounting seat and embedded in the top cover.

[0013] Preferably, an outer wall of the mounting seat is provided with a mounting groove, a groove wall of the mounting groove is provided with a through opening, the mounting groove is connected with the mounting seat through the through opening, the circuit board is built into the mounting groove, and a cover plate is fixed to the groove opening of the mounting groove.

[0014] Preferably, a clamping block is provided on the side wall of the cover plate, a clamping slot is provided on the side wall of the decorative panel, the clamping block is engaged with the clamping slot, and an edge of the decorative panel is sealed and connected to the slot wall of the first accommodating slot.

[0015] Preferably, a handle is integrally formed on the side wall of the top cover.

[0016] In summary, the present application includes at least one of the following beneficial technical effects: 1. By aligning the long axis of the tweeter and the long axis of the mid-woofer, the coaxial speaker structure is optimized, ensuring the coaxial propagation of sound, thereby improving the clarity and layering of the sound quality. At the same time, the superimposed speaker structure allows the tweeter and mid-woofer to coexist in a smaller volume, which not only saves space but also ensures balanced sound quality, making it suitable for achieving high-quality audio experience in a limited space; 2. The woofer is equipped with a sealed rear cavity structure, and the tweeter has a fully enclosed rear cavity structure, which ensures the overall waterproof performance of the speaker, meets the waterproof requirements for outdoor use, and improves the reliability and durability of the speaker in outdoor environments. In addition, the power cord of the tweeter does not need to pass through the hole of the woofer, but instead passes through a specially designed wire trough, which not only simplifies the line layout, but also ensures the sealing of the woofer, further enhancing the waterproof effect of the speaker; 3. The design of passing the power cord of the tweeter through the wire trough reduces the complexity of the line passing through the hole of the woofer in the traditional design, simplifies the line layout, reduces the difficulty of assembly, and improves production efficiency. The use of the wire trough not only solves the problem of line management, but also reduces the occupation of the internal space of the speaker, which contributes to the compactness and aesthetics of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a waterproof coaxial speaker in an embodiment of the present application.

[0018] Figure 2 It is a diagram of the coordination relationship between the upper frame, decorative panel and power supply assembly in the embodiment of the present application.

[0019] Figure 3 It is a diagram of the coordination relationship between the lower frame, the sound-permeable iron mesh and the speaker assembly in the embodiment of the present application.

[0020] Explanation of the reference numerals: 1. Shell; 11. Top cover; 111. Handle; 12. Outer frame; 121. Upper frame; 1211. Connecting arm; 1212. First accommodating groove; 122. Lower frame; 1221. Second accommodating groove; 13. Bottom cover; 14. Decorative panel; 141. Card slot; 15. Sound-permeable iron mesh; 2. Speaker assembly; 21. Woofer; 211. Wire hole; 22. Tweeter; 221. Positioning block; 3. Power supply assembly; 31. Mounting seat; 311. Mounting cavity; 312. Mounting groove; 3121. Through port; 32. Battery; 33. Circuit board; 34. Operation panel; 4. Sealed cavity; 5. Bracket; 51. Ring frame; 511. Support rod; 5111. Wire slot; 52. Mounting ring; 521. Positioning groove; 6. Cover plate; 61. Card block. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-Figure 3 This application is described in further detail.

[0022] The present application embodiment discloses a waterproof coaxial speaker. Figure 1 A waterproof coaxial speaker includes a shell 1, in which a speaker assembly 2 and a power supply assembly 3 are arranged. The shell 1 includes a top cover 11, an outer frame 12, a bottom cover 13, a decorative panel 14 and a sound-permeable iron mesh 15. The top cover 11, the outer frame 12, the bottom cover 13, the decorative panel 14 and the sound-permeable iron mesh 15 are combined to form a storage space, and the speaker assembly 2 and the power supply assembly 3 are correspondingly accommodated in the enclosed space.

[0023] Specifically, the outer frame 12 includes an upper frame 121 and a lower frame 122, and the upper frame 121 and the lower frame 122 are both hollow, wherein the upper frame 121 is correspondingly provided with four connecting arms 1211, and the four connecting arms 1211 are arranged in a matrix, and the top of the lower frame 122 is correspondingly provided with four connecting points, and the four connecting arms 1211 of the upper frame 121 are threadedly fixed with the four connecting points of the lower frame 122 by screws, thereby combining to form the outer frame 12.

[0024] Reference Figure 2 and Figure 3 Correspondingly, the speaker assembly 2 is built into the lower frame 122, wherein the speaker assembly 2 is provided with two groups, and the two groups of speaker assemblies 2 are symmetrically arranged about the central axis of the lower frame 122. The speaker assembly 2 includes a woofer 21 and a tweeter 22. Correspondingly, the lower frame 122 forms a sealed cavity 4 due to the hollow structure, and the tail area of ​​the woofer 21 is placed in the sealed cavity 4. Correspondingly, a wire hole 211 is provided at the tail of the woofer 21. The wire hole 211 allows the connecting wire of the woofer 21 to be connected to the outside to connect to the power supply assembly 3, so as to realize the power connection of the bass speaker. Therefore, the position of the wire hole 211 is located inside the sealed cavity 4, and the wire holes 211 of the two woofers 21 are arranged relatively to make the wire hole 211 built into the central area inside the sealed cavity 4.

[0025] Correspondingly, the speaker assembly 2 is built into the lower frame 122, and the two groups of speaker assemblies 2 are symmetrically arranged about the central axis of the lower frame 122. This symmetrical layout helps to evenly distribute the sound and improve the sound quality. The combination of the woofer 21 and the tweeter 22 ensures the coaxial propagation of the sound through the coaxial design, and enhances the clarity and layering of the sound quality.

[0026] Therefore, the hollow structure of the lower frame 122 not only reduces the weight, but also forms a sealed cavity 4. The tail area of ​​the woofer 21 is built into the sealed cavity 4. This design helps to optimize the bass effect while protecting the speaker from the external environment. The wire hole 211 design at the tail of the woofer 21 allows the connection wire to be connected from the inside of the sealed cavity 4 to the power supply assembly 3, ensuring the normal operation of the woofer 21. At the same time, the relative arrangement of the wire hole 211 allows the wire hole 211 to be located in the central area of ​​the sealed cavity 4, which helps to maintain the balance and stability of the structure.

[0027] It should be noted that the sealed cavity 4 in the embodiment of the present application is formed by the lower frame 122 and other components being assembled together to form a complete coaxial speaker.

[0028] Furthermore, a second accommodating groove 1221 is correspondingly opened on the lower frame 122, and the second accommodating groove 1221 is used to accommodate the speaker of the woofer 21 and the tweeter 22. The woofer 21 blocks the connection between the second accommodating groove 1221 and the sealed cavity 4. Specifically, the outer edge of the woofer 21 is fixed to the lower frame 122 by sealing and bonding, and then sealing material is added at the connection to achieve relative sealing of the sealed cavity 4.

[0029] Therefore, the second accommodating groove 1221 opened on the lower frame 122 is used to accommodate the woofer 21 and the tweeter 22. The woofer 21 is fixed to the lower frame 122 by sealing and bonding, and then sealing material is added at the connection to ensure the sealing of the sealed cavity 4, prevent water vapor and dust from entering, protect the internal components, and enhance the waterproof performance and durability of the speaker.

[0030] In addition, the sound-permeable iron mesh 15 is also fixed to the lower frame 122 by bonding and covers the notch of the second accommodating groove 1221. The sound-permeable iron mesh 15 not only plays a protective role, but also enables the sound emitted by the speaker assembly 2 to be transmitted normally.

[0031] On the other hand, a bracket 5 is fixed to the end surface of the woofer, and the tweeter 22 is disposed on the bracket 5 . The tweeter 22 is mounted outside the sound cavity of the woofer 21 and is coaxially disposed with the woofer 21 .

[0032] Specifically, the bracket 5 includes an annular frame 51 and a mounting ring 52. The annular frame 51 is fixed to the end of the woofer 21. A plurality of support rods 511 extend from the inner wall of the annular frame 51 toward the center point. In this embodiment, there are four support rods 511, which are arranged circumferentially. The mounting ring 52 is coaxially arranged with the woofer 21 and the tweeter 22. In addition, the outer peripheral wall of the mounting ring 52 is fixed to the ends of the plurality of support rods 511. The side wall of the mounting ring 52 is provided with a positioning groove 521. In this embodiment, the outer peripheral wall of the tweeter 22 is correspondingly provided with two positioning blocks 221. The number and shape of the positioning grooves 521 are consistent with those of the positioning blocks 221. The two positioning blocks 221 are plugged and matched with the two positioning blocks 221. The tweeter 22 is fixed to the mounting ring 52 by bonding.

[0033] Therefore, the annular frame 51 is fixed to the end of the woofer 21, and the circumferential arrangement of the support rods 511 and the fixation of the mounting ring 52 provide a stable structural support, ensuring that the tweeter 22 can remain stable in various usage scenarios and is not easily affected by vibration.

[0034] At the same time, the support rod is inclined toward the outside of the sound cavity of the woofer 21, which reduces the direct occupation of the sound cavity space of the woofer 21 by the tweeter 22, reduces the interference to the vibration space of the woofer 21, helps to maintain the purity of the sound quality of the woofer 21, and reduces the turbidity and distortion of the sound quality.

[0035] In addition, the positioning groove 521 on the side wall of the mounting ring 52 is plugged into the positioning block 221 on the outer peripheral wall of the tweeter 22. This design ensures the accurate positioning of the tweeter 22 and reduces the degradation of sound quality caused by improper installation. The tweeter 22 is fixed to the mounting ring 52 by bonding, which further enhances the stability and sealing of the structure.

[0036] Furthermore, a wire groove 5111 is formed on the side wall of one of the support rods 511 , and the connecting wire of the tweeter speaker 22 is routed through the wire groove 5111 and connected to the power supply assembly 3 .

[0037] Correspondingly, the design of the wire groove 5111 allows the connecting wires of the tweeter 22 to be wound out in an orderly manner, reducing the clutter of the cables, simplifying the internal wiring, and improving the assembly efficiency. At the same time, integrating the wire groove 5111 on the support rod 511 not only saves space, but also reduces the need for additional wiring structures, making the internal structure of the speaker more compact and improving the overall structural integration. In addition, in the present embodiment, the connecting wires of the tweeter 22 pass directly through the inside of the tweeter 22, and the connection point between the tweeter 22 and the connecting wire is sealed by a sealant. The design of the wire groove 5111 takes sealing into consideration, and cooperates with the sealed cavity 4 and components inside the speaker, which helps to maintain the waterproof performance of the speaker, prevent water vapor and dust from entering the interior through the cable interface, and protect the internal components.

[0038] On the other hand, the power supply assembly 3 includes a mounting base 31, a battery 32, a circuit main board 33 and an operation panel 34. The mounting base 31 is built into the upper frame 121. A mounting cavity 311 is formed on the mounting base 31. The mounting cavity 311 is connected to the sealed cavity 4. The battery 32 is installed inside the mounting cavity 311. The circuit main board 33 is installed on the mounting base 31. The operation panel 34 is fixed to the outer wall of the mounting base 31 and embedded in the top cover 11.

[0039] Specifically, the upper frame 121 is correspondingly provided with a first accommodating groove 1212, and the decorative panel 14 covers the notch of the first accommodating groove 1212. Specifically, the outer wall of the mounting seat 31 is provided with a mounting groove 312, and the groove wall of the mounting groove 312 is provided with a through opening 3121. The mounting groove 312 is connected with the mounting seat 31 through the through opening 3121. The circuit main board 33 is built into the mounting groove 312, and the notch of the mounting groove 312 is covered and fixed with a cover plate 6.

[0040] Since the mounting seat 31 is built into the upper frame 121, a mounting cavity 311 is formed, which is connected to the sealed cavity 4. This design ensures a compact layout of the power supply assembly 3 while maintaining the waterproof performance of the speaker. The battery 32 is installed in the mounting cavity 311, the circuit board 33 is installed on the mounting seat 31, and the operation panel 34 is fixed to the outer wall of the mounting seat 31 and embedded in the top cover 11, which saves space and is also convenient for operation and maintenance.

[0041] At the same time, the outer wall of the mounting seat 31 is provided with a mounting groove 312, the circuit main board 33 is built into the mounting groove 312, and the notch of the mounting groove 312 is covered and fixed with a cover plate 6, which is convenient for the maintenance and upgrade of the circuit main board 33 without disassembling the entire speaker, thereby reducing maintenance costs and time. Correspondingly, a block 61 is provided on the side wall of the cover plate 6 , a slot 141 is provided on the side wall of the decorative panel 14 , the block 61 is engaged with the slot 141 , and the edge of the decorative panel 14 is sealed and connected to the slot wall of the first accommodating slot 1212 .

[0042] Therefore, when the battery 32 in the power supply assembly 3 supplies power to the circuit main board 33, the circuit main board 33 starts to work and processes the user input signals from the operation panel 34, such as audio source selection, volume adjustment, etc. The control signals on the operation panel 34 are processed by the circuit main board 33 and converted into corresponding electrical signal instructions, which control the processing and amplification of the audio signals.

[0043] The audio signal is transmitted from the audio source device (such as a mobile phone or a computer) to the circuit main board 33 via wired or wireless means. The audio processing chip on the circuit main board 33 decodes and amplifies the input audio signal, converts the digital audio signal into an analog audio signal, and adjusts the volume, timbre and other parameters according to the control instructions of the operation panel 34.

[0044] The amplified analog audio signal is then divided into two paths, one path is transmitted to the woofer 21, and the other path is transmitted to the tweeter 22. The woofer 21 and the tweeter 22 vibrate and sound according to the frequency range of the received audio signal, respectively. The woofer 21 is responsible for playing low-frequency sounds, and the tweeter 22 is responsible for playing high-frequency sounds, together forming a full-band audio output.

[0045] During the whole process, the circuit board 33 plays a central role in signal processing and distribution, ensuring the correct processing and transmission of audio signals, while the battery 32 provides stable power support for the entire system, allowing the speaker to continue to work and play clear and full sound quality.

[0046] In addition, a handle 111 is integrally formed on the side wall of the top cover 11 to facilitate the user to grab and carry the speaker, thereby improving the convenience of operation.

[0047] The implementation principle of a waterproof coaxial speaker in the embodiment of the present application is: The woofer 21 is sealed by the rear cavity to form a fully enclosed combination with the tweeter 22, ensuring the waterproof performance of the speaker. A sealed cavity 4 is formed in the housing 1, and two groups of speaker components 2 are provided, which are symmetrically arranged in the housing 1. A wire hole 211 is provided at the tail of the woofer 21, and the wire hole 211 is located in the central area inside the sealed cavity 4. This design ensures that even in a humid or water environment, the internal components can be fully protected to prevent water vapor and dust from entering, thereby maintaining the stable operation of the speaker and extending the service life.

[0048] In addition, the high and low frequency speakers 21 are coaxially arranged, that is, the tweeter 22 is mounted outside the sound cavity of the low frequency speaker 21 and is coaxial with the low frequency speaker 21. This layout can achieve natural fusion of sound, provide a wider sound field and more accurate audio and video positioning. The coaxial design ensures the temporal consistency of the high and low frequency signals, reduces the phase distortion caused by the time difference of the sound arrival, thereby improving the sound quality performance and making the sound clearer and fuller.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A waterproof coaxial speaker, characterized in that: The invention comprises a shell (1), wherein a speaker assembly (2) and a power supply assembly (3) are arranged in the shell (1), wherein the speaker assembly (2) comprises a woofer (21) and a tweeter (22), wherein a bracket (5) is fixed to the end surface of the woofer, wherein the tweeter (22) is arranged on the bracket (5), wherein the tweeter (22) is mounted on the outside of the sound cavity of the woofer (21) and is coaxially arranged with the woofer (21), and wherein the power supply assembly (3) is built into the shell (1) for supplying power to and controlling the speaker assembly (2).

2. A waterproof coaxial speaker according to claim 1, characterized in that: A sealed cavity (4) is formed in the shell (1); two groups of speaker assemblies (2) are provided, and the two groups of speaker assemblies (2) are symmetrically arranged; a wire hole (211) is provided at the tail of the woofer (21); the wire hole (211) is located inside the sealed cavity (4); and the wire holes (211) of the two woofers (21) are arranged opposite to each other so that the wire hole (211) is built into the central area inside the sealed cavity (4).

3. A waterproof coaxial speaker according to claim 2, characterized in that: The bracket (5) comprises an annular frame body (51) and a mounting ring (52); the annular frame body (51) is fixed to the end of the woofer (21); a plurality of support rods (511) extend from the inner wall of the annular frame body (51) toward the center point; the outer peripheral wall of the mounting ring (52) is fixed to the ends of the plurality of support rods (511); a positioning groove (521) is provided on the side wall of the mounting ring (52); and the tweeter (22) is plugged into and matched with the positioning groove (521).

4. A waterproof coaxial speaker according to claim 3, characterized in that: A wire groove (5111) is provided on the side wall of one of the support rods (511), and a connecting wire of the tweeter (22) is wound through the wire groove (5111) and connected to the power supply assembly (3).

5. The waterproof coaxial speaker according to claim 2, characterized in that: The shell (1) comprises a top cover (11), an outer frame (12), a bottom cover (13), a decorative panel (14) and a sound-permeable iron mesh (15); the outer frame (12) is hollowed out; the top cover (11) covers one end surface of the outer frame (12); the bottom cover (13) covers the other end surface of the outer frame (12); the outer frame (12) is provided with a first accommodating groove (1212) and a second accommodating groove (1221); the decorative panel (14) covers the first accommodating groove (1212); the second accommodating groove (1221) is used to accommodate a speaker of the woofer (21) and the tweeter (22); the woofer (21) blocks the connection between the second accommodating groove (1221) and the sealed cavity (4); and the sound-permeable iron mesh (15) covers the notch of the second accommodating groove (1221).

6. A waterproof coaxial speaker according to claim 5, characterized in that: The outer frame (12) comprises an upper frame (121) and a lower frame (122); the first accommodating groove (1212) is provided on the upper frame (121); the second accommodating groove (1221) is provided on the lower frame (122); and the end surfaces of the upper frame (121) and the lower frame (122) are spliced ​​to form the outer frame (12).

7. A waterproof coaxial speaker according to claim 6, characterized in that: The power supply assembly (3) comprises a mounting seat (31), a battery (32), a circuit main board (33) and an operation panel (34); the mounting seat (31) is built into the upper frame (121); a mounting cavity (311) is formed on the mounting seat (31); the mounting cavity (311) is communicated with the sealed cavity (4); the battery (32) is mounted in the mounting cavity (311); the circuit main board (33) is mounted on the mounting seat (31); and the operation panel (34) is fixed to the outer wall of the mounting seat (31) and embedded in the top cover (11).

8. The waterproof coaxial speaker according to claim 7, characterized in that: The outer side wall of the mounting seat (31) is provided with a mounting groove (312), the groove wall of the mounting groove (312) is provided with a through opening (3121), the mounting groove (312) is connected with the mounting seat (31) through the through opening (3121), the circuit main board (33) is built into the mounting groove (312), and the groove opening of the mounting groove (312) is covered and fixed with a cover plate (6).

9. The waterproof coaxial speaker according to claim 8, characterized in that: The side wall of the cover plate (6) is provided with a card block (61), the side wall of the decorative panel (14) is provided with a card slot (141), the card block (61) is engaged with the card slot (141), and the edge of the decorative panel (14) is sealedly connected with the groove wall of the first accommodating groove (1212).

10. The waterproof coaxial speaker according to claim 1, characterized in that: A handle (111) is integrally formed on the side wall of the top cover (11).

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