Portable sound box

Abstract

The portable sound box comprises a bass sound box, a high-pitch sound box and a protective shell, the bass sound box and the high-pitch sound box are installed in the protective shell, a loudspeaker window is arranged at the position, corresponding to the bass sound box, of the protective shell, the loudspeaker window is provided with a detachable protective cover plate, and the protective cover plate is arranged on the protective shell. An opening is formed in the position, corresponding to the high-pitch sound box, of the protective shell, a locking mechanism and a pop-up device are further installed in the protective shell, an unlocking button is arranged on the protective shell, the locking mechanism is connected with the unlocking button and the pop-up device, the unlocking button is pressed, the unlocking button drives the locking mechanism, and the pop-up device is connected with the high-pitch sound box. And the pop-up device drives the high-pitch sound box to pop out of the protective shell from the opening. According to the scheme, the bass sound box and the treble sound box are arranged in the protective shell, so that the sound box has an excellent protective effect, the outdoor reliability of the sound box can be ensured, and the risk of damage is reduced.

Description

Technical Field

[0001] This invention relates to the field of audio technology, specifically to a portable speaker. Background Technology

[0002] As living standards improve, people increasingly enjoy outdoor activities. Portable speakers, as a popular niche market in consumer electronics, are driven by three core forces: the surge in outdoor usage, emotional value consumption, and technological integration and innovation. This trend is evolving from simply needing any sound to pursuing high-quality audio. Portable speakers are among the essential items for people's outdoor activities.

[0003] Current portable speakers mainly consist of a cabinet and one or two woofers fixed inside. The bottom of the cabinet is equipped with casters for easy movement to a designated location. However, the design with only one woofer and one tweeter limits the sound field to a fixed directional area, making it difficult to achieve stereo sound in large open spaces, resulting in poor sound quality. Furthermore, existing outdoor speaker cabinets are primarily made of plastic. While plastic dominates the portable speaker market due to its low cost and malleability, ordinary plastic speakers are prone to resonance suppression issues, leading to poor sound quality. Only a few high-end products have achieved performance breakthroughs through process improvements, but these are more expensive than wooden speakers. Traditional wooden speakers, while easy to process and cost-effective, and offering excellent sound quality, are structurally fragile and cannot withstand the inevitable impacts and vibrations of frequent transport, making them unsuitable for outdoor environments. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a portable speaker with excellent protection, better sound quality, and greater suitability for outdoor use.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a portable speaker, including a subwoofer, a tweeter, and a protective shell. The subwoofer and tweeter are installed inside the protective shell. The protective shell has a speaker window corresponding to the position of the subwoofer, and the speaker window has a removable protective cover. The protective shell has an opening corresponding to the position of the tweeter. A locking mechanism and a pop-out device are also installed inside the protective shell. The protective shell has an unlock button. The locking mechanism connects the unlock button and the pop-out device. The pop-out device has a retracted state and an extended state. When the pop-out device is in the retracted state, the tweeter is placed inside the protective shell. Pressing the unlock button activates the locking mechanism, causing the pop-out device to extend. The pop-out device can drive the tweeter to pop out of the protective shell from the opening.

[0006] Preferably, the subwoofer enclosure includes a subwoofer housing and a subwoofer speaker installed inside the subwoofer housing, and the tweeter enclosure includes a tweeter housing and a tweeter speaker installed inside the tweeter housing. The subwoofer housing and the tweeter housing are made of wood, preferably walnut wood.

[0007] Preferably, the protective shell is also equipped with a retractable pull rod, and the bottom of the protective shell is equipped with universal casters for easy lifting and transportation. Specifically, there are two universal casters, located on the front side of the bottom of the protective shell, each with a locking mechanism. The rear side of the bottom of the protective shell is also equipped with two support legs for engaging with the two universal casters, thus securing the protective shell to the ground and facilitating transportation.

[0008] Preferably, the protective shell contains a battery compartment and a circuit board. The battery compartment houses a rechargeable battery as the power source for the audio system. The circuit board electrically connects the woofer, tweeter, and rechargeable battery. The battery compartment is located in the lower part of the protective shell, separated from the woofer enclosure by a first partition. The battery's location at the bottom of the protective shell helps stabilize the center of gravity and prevents deformation of the woofer enclosure due to battery pressure, which could affect the sound quality. A battery compartment cover is provided on the protective shell corresponding to the battery compartment for easy battery maintenance and replacement.

[0009] Preferably, the protective shell may be equipped with an LED ambient light, and the circuit board is electrically connected to the LED ambient light, which can enhance the lighting atmosphere when enjoying music outdoors.

[0010] Preferably, the edge of the speaker window is provided with a connecting part for installing the protective cover plate. The connecting part adopts a buckle, slot or Velcro to facilitate the installation and removal of the protective cover plate.

[0011] Preferably, the protective shell may also be provided with a handle, which is located at the top center of the protective shell for easy extraction.

[0012] Preferably, the protective housing contains a tweeter mounting bracket, which is installed within the protective housing and aligns with the position of the opening. The tweeter is mounted within the tweeter mounting bracket via a guide rod, which is connected to the tweeter mounting bracket by a slide rail. The guide rod also has a rack, and a gear meshing with the rack is installed within the tweeter mounting bracket. The locking mechanism includes a lever, the middle of which is hinged within the tweeter mounting bracket. One end of the lever is connected to the control button, and the other end of the lever has a locking button and a locking spring. The locking button engages the gear, preventing it from rotating and thus securing the tweeter. The tweeter is mounted on a speaker enclosure. The other end of the retaining spring abuts against the tweeter mounting bracket, and the retaining spring keeps the retaining spring engaged with the gear. Pressing the control button rotates the lever around the central hinge point, disengaging the retaining spring from the gear. The retaining spring then releases the tweeter from the opening. After use, pressing the control button and manually pushing the tweeter back from the opening, then releasing the control button locks the tweeter in place. The tweeter release mechanism uses a spring. This solution uses a simple mechanical mechanism to achieve tweeter storage and release, resulting in low cost and a stable and reliable structure. An electric telescopic rod could also be used for the release mechanism, but that would increase product cost.

[0013] Preferably, there are two tweeters, including a left tweeter and a right tweeter. The left and right side walls of the protective shell are respectively provided with left and right openings to cooperate with the left and right tweeters. The left and right tweeters are respectively installed in the tweeter mounting bracket via left and right guide rods. The left and right guide rods are respectively provided with a left rack and a right rack. The gears include a left gear and a right gear that mesh with each other. The left gear and the right gear mesh with the left rack and the right rack, respectively. The locking key engages the left gear or the right gear. The two ends of the pop-out device abut against the left and right tweeters, respectively, so that the left and right tweeters can be popped out and stored synchronously.

[0014] Preferably, the protective shell also provides a loading space, which is located above the subwoofer. The loading space and the subwoofer are separated by a second partition. The protective shell is provided with a zipper or flip-top for opening the loading space, making it convenient for users to store items.

[0015] Preferably, there are two subwoofers, including a front subwoofer and a rear subwoofer. The front and rear sides of the protective shell are respectively provided with speaker windows corresponding to the front and rear subwoofers. There are four tweeters, including a front left tweeter, a front right tweeter, a rear left tweeter, and a rear right tweeter. The protective shell is provided with a front tweeter mounting bracket for installing the front left and front right tweeters and a rear tweeter mounting bracket for installing the rear left and rear right tweeters. This solution adopts two sets of audio equipment in the front and rear directions, which can spread the volume to the front and rear sides of the equipment, making it convenient for use in large square dance venues.

[0016] Preferably, the protective shell is also equipped with a waterproof cover at the opening. The upper end of the waterproof cover is hinged to the protective shell. When the tweeter is placed inside the protective shell, the waterproof cover covers the opening to prevent dust and moisture from entering the protective shell. When the tweeter pops out of the protective shell, the waterproof cover can be lifted around the upper hinge point to cover the top of the tweeter, which can also protect the tweeter well when used in rainy weather.

[0017] Compared with existing technologies, this invention has the following advantages: The overall structure is simple and compact, providing sound field areas in two directions, resulting in wider sound coverage in large outdoor spaces; the telescopic structure of the tweeter improves sound quality while saving space and preventing dust and moisture contamination, thus extending its lifespan; the woofer is made of walnut wood, providing high-quality sound and enhancing the user's outdoor listening experience; the protective shell is not only easy to move but also has good wear resistance and durability, with flexible storage space for storing power cords, mobile phones, and other personal items; the overall design is stylish and aesthetically pleasing, and it saves on manufacturing costs. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of the storage state of a portable speaker according to the present invention; Figure 2 This is a structural diagram of a portable speaker in use according to the present invention; Figure 3 This is a side sectional view of a portable speaker according to the present invention; Figure 4 This is a schematic diagram of the installation structure of the tweeter of a portable speaker according to the present invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and beneficial effects of this invention clearer, a portable speaker of this invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0020] A portable speaker, reference Figures 1-3 As shown, it includes a bass speaker, a tweeter, and a protective shell 1. The protective shell 1 can be composed of a front shell and a rear shell according to production needs. The front shell and the rear shell can be connected by snap-fit, and the interior forms a speaker mounting compartment for installing the bass speaker and the tweeter. The front shell and the rear shell can be one-piece molded engineering plastic shells, which not only have high structural strength, but are also wear-resistant and aging-resistant. The subwoofer and tweeter are installed inside the protective shell 1. In this embodiment, there are two subwoofers, including a front subwoofer 31 and a rear subwoofer 32. The front and rear sides of the protective shell 1 are respectively provided with speaker windows corresponding to the front subwoofer 31 and the rear subwoofer 32. There are four tweeters, including a front left tweeter 21, a front right tweeter 22, a rear left tweeter, and a rear right tweeter. The protective shell 1 is provided with speaker mounting brackets (including a front tweeter mounting bracket 51 for mounting the front left tweeter 21 and the front right tweeter 22, and a rear tweeter mounting bracket 52 for mounting the rear left tweeter and the rear right tweeter). A removable protective cover 4 is provided at the speaker window. Openings are provided on the left and right sides of the protective shell 1 corresponding to the positions of the tweeters. A locking mechanism and a pop-out device 26 are also installed inside the protective shell 1. An unlocking button 71 is provided on the protective shell 1. The locking mechanism connects the unlocking button 71 and the pop-out device 26. The pop-out device 26 has a retracted state and an extended state. When the pop-out device 26 is in the retracted state, the tweeters (including the front left tweeter 21, the front right tweeter 22, the rear left tweeter, and the rear right tweeter) are placed inside the protective shell 1. Pressing the unlocking button 71 activates the locking mechanism, causing the pop-out device 26 to be in the extended state. The pop-out device 26 can drive the tweeters (including the front left tweeter 21, the front right tweeter 22, the rear left tweeter, and the rear right tweeter) to pop out of the protective shell 1 from the openings.

[0021] like Figure 4As shown, the speaker mounting brackets (including the front tweeter mounting bracket 51 and the rear tweeter mounting bracket 52) ​​are actually independent speaker cabinets. The left and right ends of the front tweeter mounting bracket 51 and the rear tweeter mounting bracket 52 are connected to the openings. These openings include a front left opening, a front right opening, a rear left opening, and a rear right opening, respectively, which accommodate the front left tweeter 21, the front right tweeter 22, the rear left tweeter 22, and the rear right tweeter 23. The left tweeter... The front tweeter 21 and the right tweeter 22 are respectively installed in the front tweeter mounting bracket 51 via the left guide rod 211 and the right guide rod 221. The installation structure of the rear left tweeter and the rear right tweeter is the same as that of the left tweeter 21 and the right tweeter 22. The rear side of the protective shell 1 is also provided with an unlocking button 71 for controlling the rear left tweeter and the rear right tweeter. The installation structure of the rear left tweeter and the rear right tweeter will not be described in detail here.

[0022] The left guide rod 211 and right guide rod 221 are connected to the front tweeter mounting bracket 51 by a slide rail. The left guide rod 211 and right guide rod 221 are respectively equipped with a left rack 212 and a right rack 222. The front tweeter mounting bracket 51 houses a left gear 213 and a right gear 223 that mesh with the left rack 212 and right rack 222, respectively. The left gear 213 and right gear 223 mesh with each other to form a linked gear and rack structure. The locking mechanism includes a lever 23, the middle of which is hinged within the front tweeter mounting bracket 51. One end of the lever 23 is connected to the control button 71, and the other end of the lever 23 is equipped with a locking key 25 and a locking spring 24. The locking key 25 engages the left gear 213 or right gear 223, preventing the left gear 213 or right gear 223 from rotating. The left tweeter 21 and right tweeter 22 are fixed in place. The other end of the locking spring 24 abuts against the tweeter mounting bracket 51. The locking spring 24 is used to keep the locking key 25 locked against the left gear 212 or right gear 222. Pressing the control button 71 causes the lever 23 to rotate around the central hinge point. The locking key 25 separates from the left gear 212 or right gear 222, and the locking key 25 no longer constrains the left gear 212 or right gear 222. The pop-out device can then push the front left tweeter 21 and front right tweeter 22 out of the front left opening and front right opening, respectively, slowly. After use, press the control button 71 and then manually push the front left tweeter 21 or front right tweeter 22 back from the opening. Release the control button 71 to lock the tweeter position. The pop-up device 26 employs a spring, with its two ends respectively contacting and connecting to the front left tweeter 21 and the front right tweeter 22. This allows the front left tweeter 21 and the front right tweeter 22 to be simultaneously and slowly popped out and retracted via the linkage of the left gear 212 or the right gear 222. This solution uses a simple mechanical mechanism to achieve the pop-up and retraction of the tweeters, resulting in low cost and a stable and reliable structure. The pop-up device 26 could also be implemented using an electric telescopic rod, but that would increase product costs. This solution utilizes two sets of audio equipment in the front and rear directions, enabling the sound to be propagated to both sides of the equipment. The two sets of products based on this application's technical solution can achieve comprehensive sound field coverage without blind spots in all directions, making it suitable for large-scale live performances.

[0023] Preferably, both the front subwoofer enclosure 31 and the rear subwoofer enclosure 32 include a subwoofer housing and a subwoofer speaker installed within the subwoofer housing. The front left tweeter enclosure 21, the front right tweeter enclosure 22, the rear left tweeter enclosure, and the rear right tweeter enclosure all include a tweeter housing and a tweeter speaker installed within the tweeter housing. The subwoofer housing is made of wood, preferably walnut wood, to provide a good sound quality with a deep low frequency, full mid-frequency, and warm high frequency. Speaker grilles are provided on the subwoofer housing and tweeter housing at the mounting openings corresponding to the subwoofer and tweeter speakers for protection.

[0024] Preferably, the protective shell 1 is further provided with a retractable pull rod 11, and the bottom of the protective shell 1 is provided with universal casters 12 for easy lifting and transportation. There are two universal casters 12, which are located on the front side of the bottom of the protective shell 1. Each universal caster 12 is equipped with a locking mechanism. The rear side of the bottom of the protective shell 1 is also provided with two support legs 13, which cooperate with the two universal casters to fix the protective shell 1 to the ground and facilitate transportation.

[0025] Preferably, the protective shell 1 contains a battery compartment 6 and a circuit board. The battery compartment 6 houses a rechargeable battery as the power source for the audio system. The circuit board electrically connects the woofer, tweeter, and rechargeable battery. The battery compartment 6 is located in the lower part of the protective shell 1, separated from the woofer enclosure by a first partition 101. The battery compartment 6 is positioned at the bottom of the protective shell 1, which helps stabilize the center of gravity and prevents the woofer's output sound quality from being affected by factors such as battery current. A battery compartment cover is provided on the protective shell 1 corresponding to the battery compartment 6 for easy battery maintenance and replacement. In this embodiment, wiring gaps are provided between the front woofer 31 and the rear woofer 32, and between the front tweeter mounting bracket 51 and the rear tweeter mounting bracket 52, to facilitate overall circuit wiring.

[0026] Preferably, the protective case 1 may be provided with an LED ambient light and a charging panel. The circuit board is electrically connected to the LED ambient light and the charging panel. When enjoying music outdoors, it can add a lighting atmosphere and also charge the mobile phone.

[0027] Preferably, the edge of the speaker window is provided with a connecting part 41 for installing the protective cover 4. The connecting part 41 adopts a buckle, slot or Velcro to facilitate the installation and removal of the protective cover 4.

[0028] Preferably, to protect the subwoofer and tweeter, the protective shell 1 is filled with cushioning material to prevent abnormal noises from occurring when the subwoofer and tweeter vibrate. This cushioning material can be polyurethane foam or cushioning cotton.

[0029] Preferably, the protective shell 1 may also be provided with a handle 14, which is located at the top center of the protective shell 4 for easy extraction.

[0030] Preferably, the protective shell 1 further includes a second partition 102 and a third partition 103. The speaker mounting brackets (including a front tweeter mounting bracket 51 and a rear tweeter mounting bracket 52) ​​are mounted on the second partition 102. The tweeter and woofer are separated by the second partition 102, making the spaces between the tweeter and woofer independent, facilitating installation and maintenance, and improving their sound performance. The third partition 103 is disposed on the speaker mounting brackets. The third partition 103 and the top space inside the protective shell 1 can form a loading space. The protective shell 1 is provided with a zipper or flip-top to open this loading space, making it convenient for users to store and carry items.

[0031] Preferably, the protective shell 1 is also equipped with a waterproof cover 20 at the opening. The upper end of the waterproof cover 20 is hinged to the protective shell 1. When the tweeter is placed inside the protective shell 1, the waterproof cover 20 covers the opening to prevent dust and moisture from entering the protective shell. When the tweeter pops out of the protective shell, the waterproof cover 20 can be lifted around the upper hinge point to cover the top of the tweeter, which can also protect the tweeter well when used in rainy weather.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and the concept of the solution, shall fall within the scope of protection of the present invention.

Claims

1. A portable sound device, characterized by: The utility model provides a portable speaker, which comprises a protective shell, a bass speaker and a treble speaker.

2. The portable sound system of claim 1, wherein: The utility model discloses a portable speaker, which comprises a protective shell, a bass speaker and a treble speaker.

3. The portable sound system of claim 1, wherein: The utility model discloses a portable speaker, which comprises a protective shell, a bass speaker and a treble speaker.

4. The portable sound system of claim 1, wherein: The utility model discloses a portable speaker, which comprises a protective shell, a bass speaker and a treble speaker.

5. The portable sound system of claim 4, wherein: The utility model discloses a portable speaker, which comprises a protective shell, a bass speaker and a treble speaker.

6. The portable sound system of claim 1, wherein: The utility model discloses a portable speaker, which comprises a protective shell, a bass speaker and a treble speaker.

7. The portable sound system of claim 1, wherein: The utility model discloses a portable speaker, which comprises a protective shell, a bass speaker and a treble speaker.

8. The portable sound system of claim 7, wherein: The utility model discloses a portable speaker, which comprises a protective shell, a bass speaker and a treble speaker. The utility model discloses a portable speaker, which comprises a protective shell, a bass speaker and a treble speaker. The utility model discloses a portable speaker, which comprises a protective shell, a bass speaker and a treble speaker. The utility model discloses a portable speaker, which comprises a protective shell, a bass speaker and a treble speaker. The utility model discloses a portable speaker, which comprises a protective shell, a bass speaker and a treble speaker. The utility model discloses a portable speaker, which comprises a protective shell, a bass speaker and a treble speaker. The utility model discloses a portable speaker, which comprises a protective shell, a bass speaker and a treble speaker. 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The portable sound system of claim 7 or 8, wherein: The number of bass speakers is two, including front bass speakers and rear bass speakers, and the front side and the rear side of the protective shell are respectively provided with the loudspeaker windows corresponding to the front bass speakers and the rear bass speakers; the number of treble speakers is four, including front left treble speakers, front right treble speakers, rear left treble speakers and rear right treble speakers, and the protective shell is internally provided with a front treble speaker mounting rack for mounting the front left treble speakers and the front right treble speakers and a rear treble speaker mounting rack for mounting the rear left treble speakers and the rear right treble speakers.

10. The portable sound system of claim 4, wherein: The battery compartment is located at the lower part in the protective shell, and the battery compartment and the bass speakers are separated by a first partition.

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