Waterproof coaxial speaker

Abstract

The application 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 treble loudspeaker, a support is fixed to the end face of the bass loudspeaker, the treble loudspeaker is arranged on the support, the treble loudspeaker is arranged on the outer side of the sound cavity of the bass loudspeaker and coaxially arranged with the bass loudspeaker, and the power supply assembly is arranged in the shell and used for supplying power to the loudspeaker assembly and performing control; the application has the advantages of reducing the space occupied by the loudspeaker and improving the waterproof capability of the sound box.

Description

TECHNICAL FIELD

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

[0002] At present, coaxial speakers are widely used in various occasions as a kind of high-end audio equipment. The coaxial speaker greatly improves the frequency range of the speaker by arranging tweeters and woofers on the same axis. However, with the increasing demand of consumers for portability and waterproof performance, the existing coaxial speakers face challenges in miniaturization and waterproof performance.

[0003] In the related art, the common coaxial speaker usually adopts a structure design of stacking in a stacker, that is, the tweeter is stacked before or after the woofer, that is, a break is made in the middle of the woofer, a support is extended, and then the tweeter is fixed and installed, and the wire of the tweeter passes through the break to realize wiring.

[0004] In the above related technology, the problems are that the large capacitance and inductance in the tweeter and woofer occupy extra positions, the tweeter is built-in in the sound cavity of the woofer, occupies the sound cavity space of the woofer, affects the sound quality of the woofer, the tweeter needs to pass through the wire, which is not conducive to complete sealing, and thus cannot effectively prevent water. SUMMARY

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

[0006] The waterproof coaxial speaker provided by the application adopts the following technical scheme:

[0007] A waterproof coaxial speaker includes a shell, a speaker assembly and a power supply assembly are arranged in the shell, the speaker assembly includes a woofer and a tweeter, a support is fixed to the end face of the woofer, the tweeter is arranged on the support, the tweeter is arranged on the outside of the sound cavity of the woofer and coaxially arranged with the woofer, and the power supply assembly is built-in in the shell to supply power and perform control to the speaker assembly.

[0008] Preferably, a sealed cavity is formed in the shell, the speaker assembly is provided with two groups, the two groups of speaker assemblies are symmetrically arranged, a wire hole is arranged at the tail of the woofer, the wire hole is located inside the sealed cavity, and the wire holes of the two woofers are oppositely arranged so that the wire holes are built-in in the center area inside the sealed cavity.

[0009] Preferably, the support frame comprises a ring-shaped frame body and a mounting ring, the ring-shaped frame body is fixed to the end of the bass speaker, the inner wall of the ring-shaped frame body extends to a plurality of support rods, the outer peripheral wall of the mounting ring is fixed to the end of the plurality of support rods, the side wall of the mounting ring is provided with a positioning slot, and the treble speaker is inserted and matched with the positioning slot.

[0010] Preferably, the side wall of one of the support rods is provided with a wire slot, and the connecting wire of the treble speaker is wound out through the wire slot and connected to the power supply assembly.

[0011] Preferably, the shell comprises a top cover, an outer frame, a bottom cover, a decorative panel and a sound-permeable iron mesh, the outer frame is provided in a hollow manner, the top cover is covered on one end surface of the outer frame, the bottom cover is covered on the other end surface of the outer frame, the outer frame is provided with a first accommodating slot and a second accommodating slot, the decorative panel covers the first accommodating slot, and the second accommodating slot is used for accommodating the loudspeaker of the bass speaker and the treble speaker, the bass speaker blocks the communication between the second accommodating slot and the sealed cavity, and the sound-permeable iron mesh is covered on the slot opening of the second accommodating slot.

[0012] Preferably, the outer frame comprises an upper frame and a lower frame, the first accommodating slot is formed on the upper frame, the second accommodating slot is formed on the lower frame, and the end surfaces between the upper frame and the lower frame are spliced to form the outer frame.

[0013] Preferably, the power supply assembly comprises a mounting seat, a battery, a circuit mainboard and an operation panel, the mounting seat is built in the inner part of the upper frame, the mounting seat is formed with a mounting cavity, the mounting cavity is communicated with the sealed cavity, the battery is installed in the inner part of the mounting cavity, the circuit mainboard is installed on the mounting seat, and the operation panel is fixed to the outer side wall of the mounting seat and embedded in the top cover.

[0014] Preferably, the outer side wall of the mounting seat is provided with a mounting slot, the slot wall of the mounting slot is provided with a through opening, the mounting slot is communicated with the mounting seat through the through opening, the circuit mainboard is built in the mounting slot, and the slot opening of the mounting slot is covered and fixed with a cover plate.

[0015] Preferably, the side wall of the cover plate is provided with a clamping block, the side wall of the decorative panel is provided with a clamping slot, the clamping block is clamped and matched with the clamping slot, and the edge of the decorative panel is sealingly connected with the slot wall of the first accommodating slot.

[0016] Preferably, the side wall of the top cover is integrally formed with a handle.

[0017] In summary, the present application has at least one of the following beneficial technical effects:

[0018] 1. By designing the long axis of the high-frequency speaker to be collinear with the long axis of the mid-low frequency speaker, the optimization of the coaxial speaker structure is achieved, ensuring the coaxial propagation of sound, thereby improving the clarity and level of sound quality. At the same time, the use of superimposed speaker structure allows the high-frequency and mid-low frequency speakers to coexist in a smaller volume, not only saving space, but also ensuring the balance of sound quality, suitable for achieving high-quality audio experience in limited space;

[0019] 2. The low-frequency speaker cooperates with the rear cavity sealing structure, and the high-frequency speaker adopts the fully enclosed rear cavity speaker structure, which ensures the waterproof performance of the whole speaker, meets the waterproof requirement of outdoor use, improves the use reliability and durability of the speaker in outdoor environment. In addition, the power line of the high-frequency speaker does not need to pass through the hole of the low-frequency speaker, but passes out from the specially designed wire slot, which not only simplifies the layout of the wire, but also ensures the sealing of the low-frequency speaker, further enhancing the waterproof effect of the speaker;

[0020] 3. The design of the power line of the high-frequency speaker passing out through the wire slot reduces the complexity of the wire passing through the hole of the low-frequency speaker in the traditional design, simplifies the layout of the wire, reduces the assembly difficulty, improves the production efficiency, and the use of the wire slot not only solves the wire management problem, but also reduces the occupation of the internal space of the speaker, which is helpful to the compactness and aesthetics of the overall structure. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the overall structure diagram of a waterproof coaxial speaker in the embodiment of the present application.

[0022] Figure 2 is the cooperation relationship diagram among the upper frame, the decorative panel and the power supply assembly in the embodiment of the present application.

[0023] Figure 3 is the cooperation relationship diagram among the lower frame, the sound-permeable iron mesh and the speaker assembly in the embodiment of the present application.

[0024] Marked as follows: 1, shell; 11, top cover; 111, handle; 12, outer frame; 121, upper frame; 1211, connecting arm; 1212, first containing groove; 122, lower frame; 1221, second containing groove; 13, bottom cover; 14, decorative panel; 141, clamping groove; 15, sound-permeable iron mesh; 2, speaker assembly; 21, low-frequency speaker; 211, wire hole; 22, high-frequency speaker; 221, positioning block; 3, power supply assembly; 31, mounting seat; 311, mounting cavity; 312, mounting groove; 3121, through port; 32, battery; 33, circuit mainboard; 34, operation panel; 4, sealing cavity; 5, support; 51, annular frame body; 511, support rod; 5111, wire slot; 52, mounting ring; 521, positioning groove; 6, cover plate; 61, clamping block. DETAILED DESCRIPTION

[0025] The following description will be made in conjunction with the accompanying drawings Figures 1-3 The application is further described in detail.

[0026] The embodiments of the present application disclose a waterproof coaxial speaker. Referring to Figure 1 A waterproof coaxial speaker includes a shell 1, a speaker assembly 2 and a power supply assembly 3 are arranged in the shell 1, 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 sealed space.

[0027] Specifically, the outer frame 12 includes an upper frame 121 and a lower frame 122, both the upper frame 121 and the lower frame 122 are hollow, and four connecting arms 1211 are correspondingly arranged on the upper frame 121, the four connecting arms 1211 are arranged in a matrix, and four connecting points are correspondingly arranged on the top of the lower frame 122, and the four connecting arms 1211 of the upper frame 121 are threadedly fixed to the four connecting points of the lower frame 122 by screws, so as to combine to form the outer frame 12.

[0028] Referring to Figure 2 and Figure 3 Correspondingly, the speaker assembly 2 is built in the lower frame 122, wherein the speaker assembly 2 is provided in 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 bass speaker 21 and a treble speaker 22, and correspondingly, the lower frame 122 forms a sealed cavity 4 due to the hollow structure, the tail region of the bass speaker 21 is built in the sealed cavity 4, and correspondingly, the tail of the bass speaker 21 is provided with a wire hole 211, the wire hole 211 enables the connecting wire of the bass speaker 21 to be connected 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 bass speakers 21 are oppositely arranged, so that the wire holes 211 are built in the central region inside the sealed cavity 4.

[0029] Correspondingly, the speaker assembly 2 is built in the lower frame 122, and the two groups of speaker assemblies 2 are symmetrically arranged about the central axis of the lower frame 122, and this symmetrical layout helps to evenly distribute the sound and improve the sound quality. The combination of the bass speaker 21 and the treble speaker 22 ensures the coaxial propagation of the sound through the coaxial design, and enhances the clarity and level of the sound quality.

[0030] Therefore, the hollow structure of the lower frame 122 not only reduces the weight, but also forms a sealed cavity 4, and the tail area of the bass speaker 21 is built in the sealed cavity 4. This design helps to optimize the bass effect and protect the speaker from the external environment. The wire hole 211 of the tail of the bass speaker 21 is designed to enable the connection line to be connected to the power supply assembly 3 from the inside of the sealed cavity 4, ensuring the normal operation of the bass speaker 21. At the same time, the relative arrangement of the wire hole 211 enables the wire hole 211 to be located in the central area inside the sealed cavity 4, which helps to maintain the balance and stability of the structure.

[0031] 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 cooperating to form a complete coaxial speaker.

[0032] Further, the second accommodating groove 1221 is also provided on the lower frame 122, and the second accommodating groove 1221 is used to accommodate the loudspeaker of the bass speaker 21 and the tweeter 22. The bass speaker 21 blocks the communication between the second accommodating groove 1221 and the sealed cavity 4. Specifically, the outer edge of the bass speaker 21 is fixed to the lower frame 122 by sealing and bonding, and sealing material is additionally provided at the connection to achieve the relative sealing of the sealed cavity 4.

[0033] Therefore, the second accommodating groove 1221 provided on the lower frame 122 is used to accommodate the bass speaker 21 and the tweeter 22. The bass speaker 21 is fixed to the lower frame 122 by sealing and bonding, and sealing material is additionally provided 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.

[0034] In addition, the sound-permeable iron mesh 15 is also fixed to the lower frame 122 by bonding and covers the slot 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 normally transmitted.

[0035] On the other hand, the end surface of the low speaker is fixed with a support 5, and the tweeter 22 is arranged on the support 5. The tweeter 22 is arranged on the outside of the sound cavity of the bass speaker 21 and is coaxially arranged with the bass speaker 21.

[0036] Specifically, the support 5 comprises a ring-shaped frame body 51 and a mounting ring 52, the ring-shaped frame body 51 is fixed with the end of the bass speaker 21, the inner wall of the ring-shaped frame body 51 extends a plurality of support rods 511 to the center point, in the embodiment, the support rods 511 are four, the four support rods 511 are arranged in a circle, and the mounting ring 52 is coaxially arranged with the bass speaker 21 and the treble speaker 22. In addition, the outer peripheral wall of the mounting ring 52 is fixed with the end of the plurality of support rods 511, the side wall of the mounting ring 52 is provided with a positioning groove 521, in the embodiment, the outer peripheral wall of the treble speaker 22 is correspondingly provided with two positioning blocks 221, the number and shape of the positioning groove 521 are consistent with those of the positioning blocks 221, the two positioning blocks 221 are inserted and matched with the two positioning blocks 221, and the treble speaker 22 is fixed with the mounting ring 52 in a bonding manner.

[0037] Therefore, the ring-shaped frame body 51 is fixed with the end of the bass speaker 21, the circumferential arrangement of the support rods 511 and the fixing of the mounting ring 52 provide stable structural support, and ensure that the treble speaker 22 can remain stable in various use scenarios and is not easily affected by vibration.

[0038] Meanwhile, the support rod is inclined towards the outside of the sound cavity of the bass speaker 21, which reduces the space occupied by the treble speaker 22 in the sound cavity of the bass speaker 21 and reduces the interference with the vibration space of the bass speaker 21, thereby helping to maintain the pure sound quality of the bass speaker 21 and reducing the turbidity and distortion of the sound quality.

[0039] In addition, the positioning groove 521 in the side wall of the mounting ring 52 is inserted and matched with the positioning block 221 in the outer peripheral wall of the treble speaker 22, which ensures accurate positioning of the treble speaker 22 and reduces the decline in sound quality caused by improper installation. The treble speaker 22 is fixed with the mounting ring 52 in a bonding manner, which further enhances the stability and sealing performance of the structure.

[0040] Further, the side wall of one of the support rods 511 is provided with a wire groove 5111, and the connecting wire of the treble speaker 22 is wound out through the wire groove 5111 and connected to the power assembly 3.

[0041] Correspondingly, the design of the wire slot 5111 enables the connection line of the tweeter 22 to be orderly wound out, reduces the clutter of the cable, simplifies the internal wiring, and improves the assembly efficiency. At the same time, the integration of the wire slot 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 sound box more compact and improving the overall structural integration. In addition, in this embodiment, the connection line of the tweeter 22 is directly passed out from the inside of the tweeter 22, and the connection between the tweeter 22 and the connection line is sealed by sealing glue. The design of the wire slot 5111 considers the sealing, cooperates with the sealed cavity 4 and components inside the sound box, and helps to maintain the waterproof performance of the sound box, preventing water vapor and dust from entering the inside through the cable interface and protecting the internal components.

[0042] On the other hand, the power supply assembly 3 includes a mounting seat 31, a battery 32, a circuit mainboard 33, and an operation panel 34. The mounting seat 31 is built-in inside the upper frame 121, and a mounting cavity 311 is formed on the mounting seat 31 and communicates with the sealed cavity 4. The battery 32 is installed inside the mounting cavity 311. The circuit mainboard 33 is installed on the mounting seat 31. The operation panel 34 is fixed to the outer side wall of the mounting seat 31 and embedded at the top cover 11.

[0043] Specifically, the upper frame 121 is correspondingly provided with a first accommodating groove 1212, and the decorative panel 14 covers the slot of the first accommodating groove 1212. Specifically, the outer side 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 communicates with the mounting seat 31 through the through opening 3121. The circuit mainboard 33 is built-in in the mounting groove 312, and the slot of the mounting groove 312 is covered and fixed with the cover plate 6.

[0044] Since the mounting seat 31 is built-in inside the upper frame 121 and forms the mounting cavity 311 which communicates with the sealed cavity 4, this design ensures the compact layout of the power supply assembly 3 while maintaining the waterproof performance of the sound box. The battery 32 is installed inside the mounting cavity 311, the circuit mainboard 33 is installed on the mounting seat 31, and the operation panel 34 is fixed to the outer side wall of the mounting seat 31 and embedded at the top cover 11, which saves space and is convenient for operation and maintenance.

[0045] At the same time, the outer side wall of the mounting seat 31 is provided with the mounting groove 312, and the circuit mainboard 33 is built-in in the mounting groove 312. The slot of the mounting groove 312 is covered and fixed with the cover plate 6, which is convenient for the maintenance and upgrading of the circuit mainboard 33 without the need to disassemble the entire sound box, reducing the maintenance cost and time

[0046] Correspondingly, the side wall of the cover plate 6 is provided with a clamping block 61, the side wall of the decorative panel 14 is provided with a clamping groove 141, the clamping block 61 is clamped and matched with the clamping groove 141, and the edge of the decorative panel 14 is sealingly connected with the groove wall of the first accommodating groove 1212.

[0047] Therefore, when the battery 32 in the power supply assembly 3 supplies power to the circuit board 33, the circuit board 33 starts to work and processes the user input signals from the operation panel 34, such as sound source selection, volume adjustment, etc. The control signals on the operation panel 34 are converted into corresponding electrical signal instructions through the processing of the circuit board 33, which control the processing and amplification of the audio signals.

[0048] The audio signals are transmitted from the sound source device (such as a mobile phone or a computer) to the circuit board 33 through wired or wireless means. The audio processing chip on the circuit board 33 decodes and amplifies the input audio signals, converts the digital audio signals into analog audio signals, and adjusts the volume, tone, and other parameters according to the control instructions of the operation panel 34.

[0049] The amplified analog audio signals are then divided into two paths, one of which is transmitted to the bass speaker 21 and the other of which is transmitted to the treble speaker 22. The bass speaker 21 and the treble speaker 22 vibrate and emit sound according to the frequency range of the received audio signals, respectively. The bass speaker 21 is responsible for playing low-frequency sounds, and the treble speaker 22 is responsible for playing high-frequency sounds, together forming a full-frequency audio output.

[0050] Throughout the 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 sound box to work continuously and play clear and full sound quality.

[0051] In addition, the side wall of the top cover 11 is integrally formed with a handle 111 to facilitate the user to grab and carry the sound box, improving the convenience of operation.

[0052] The implementation principle of the waterproof coaxial sound box according to an embodiment of the present application is as follows:

[0053] The bass speaker 21 is sealed with the rear cavity and forms a fully enclosed combination with the treble speaker 22, ensuring the waterproof performance of the sound box. The sealed cavity 4 is formed in the shell 1, and the speaker assembly 2 is provided with two groups symmetrically arranged in the shell 1. The tail of the bass speaker 21 is provided with a wire hole 211, which is located in the center area inside the sealed cavity 4. This design ensures that the internal components are fully protected even in a humid or water environment, preventing water vapor and dust from entering, thereby maintaining the stable operation of the sound box and prolonging the service life.

[0054] In addition, the high and low pitch speakers 21 are coaxially arranged, that is, the high pitch speaker 22 is arranged outside the sound cavity of the low pitch speaker 21 and coaxial with the low pitch speaker 21. This arrangement can realize natural fusion of sound, provide wider sound field and more accurate sound image positioning. The coaxial design ensures the consistency of high and low pitch signals in time, reduces the phase distortion caused by the sound arrival time difference, and thus improves the sound quality performance, making the sound clearer and fuller.

[0055] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, equivalent changes made on the basis of the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A waterproof coaxial speaker, characterized in that, The device includes a housing (1), in which a speaker assembly (2) and a power supply assembly (3) are disposed. The speaker assembly (2) includes a woofer (21) and a tweeter (22). A bracket (5) is fixed to the end face of the woofer. The tweeter (22) is disposed on the bracket (5). The tweeter (22) is mounted on the outside of the acoustic cavity of the woofer (21) and is coaxially disposed with the woofer (21). The power supply assembly (3) is built into the housing (1) for supplying power to the speaker assembly (2) and performing control functions. A sealed cavity (4) is formed inside the housing (1). Two sets of speaker assemblies (2) are provided, and the two sets of speaker assemblies (2) are arranged symmetrically. A wire hole (211) is provided at the tail of the bass speaker (21). The wire hole (211) is located inside the sealed cavity (4). The wire holes (211) of the two bass speakers (21) are arranged opposite to each other so that the wire hole (211) is built into the central area inside the sealed cavity (4). The housing (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 outer frame (12) is hollowed out. The top cover (11) covers one end of the outer frame (12), and the bottom cover (13) covers the other end of the outer frame (12). The outer frame (12) is provided with a first receiving groove (1212) and a second receiving groove (1221). The decorative panel (14) covers the first receiving groove (1212). The second receiving groove (1221) is used to accommodate the horn of the bass speaker (21) and the tweeter (22). The bass speaker (21) blocks the connection between the second receiving groove (1221) and the sealed cavity (4). The sound-permeable iron mesh (15) covers the opening of the second receiving groove (1221).

2. The waterproof coaxial speaker according to claim 1, characterized in that, 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). Several support rods (511) extend from the inner wall of the annular frame (51) toward the center point. The outer peripheral wall of the mounting ring (52) is fixed to the ends of the several support rods (511). A positioning groove (521) is provided on the side wall of the mounting ring (52). The tweeter (22) is inserted into the positioning groove (521).

3. A waterproof coaxial speaker according to claim 2, characterized in that, One of the support rods (511) has a wire groove (5111) on its side wall, through which the connecting wire of the tweeter (22) is routed and connected to the power supply assembly (3).

4. A waterproof coaxial speaker according to claim 1, characterized in that, The outer frame (12) includes an upper frame (121) and a lower frame (122). The first receiving groove (1212) is formed on the upper frame (121), and the second receiving groove (1221) is formed on the lower frame (122). The end faces of the upper frame (121) and the lower frame (122) are spliced ​​together to form the outer frame (12).

5. A waterproof coaxial speaker according to claim 4, characterized in that, The power supply assembly (3) includes a mounting base (31), a battery (32), a circuit 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 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).

6. A waterproof coaxial speaker according to claim 5, characterized in that, The outer side wall of the mounting base (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 to the mounting base (31) through the through opening (3121). The circuit 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).

7. A waterproof coaxial speaker according to claim 6, characterized in that, The cover plate (6) has a locking block (61) on its side wall, and the decorative panel (14) has a locking groove (141) on its side wall. The locking block (61) engages with the locking groove (141), and the edge of the decorative panel (14) is sealed to the groove wall of the first receiving groove (1212).

8. A waterproof coaxial speaker according to claim 1, characterized in that, The top cover (11) has a handle (111) integrally formed on the side wall.

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