Portable sound box
By setting a stop structure in the expansion housing of the portable speaker, the problem of misalignment during the retraction of the nested body is solved, and the retraction smoothness and production efficiency are improved.
Patent Information
- Application Number
- CN202421120273.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-21
AI Technical Summary
When the enlarged shell of the portable speaker is retracted, the retraction speed of the inner ring nesting body is greater than that of the outer ring nesting body, resulting in the lower limit ring offset, causing the outer ring nesting body to not retract normally, affecting the portability of the speaker and Productivity.
Set a stop structure at the bottom of the nesting body except the innermost ring and outermost ring nesting body, such as a hot melt column, which protrudes on the inside of the nesting body to prevent misalignment of adjacent nesting bodies.
It effectively prevents misalignment failure of the expansion housing during retraction, ensures smoothness of retraction, reduces the chance of failure, and is easier to automate during assembly, improves production efficiency and reduces manufacturing costs.
Smart Images
Figure CN222509456U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electroacoustic converters, in particular to a portable speaker. Background Art
[0002] For portability, it is usually hoped that the speaker (such as a Bluetooth speaker) can be small in size. However, when the size is reduced, the volume inside the speaker will be correspondingly reduced, so that its bass effect will be deteriorated.
[0003] In order to obtain good bass effects for traditional small-volume portable speakers, a common practice is to adjust the compliance or weight of the speaker unit to obtain a low F0 index. However, blindly adjusting the compliance and weight to obtain a low F0 index will result in a low speaker production yield, which will undoubtedly increase costs.
[0004] Based on this, the applicant has developed an expandable portable speaker, which includes an expansion shell, which includes a plurality of nested bodies that are movably nested together from the inside to the outside. To ensure the airtightness of the expansion shell, among two adjacent nested bodies, the bottom of the nested body located in the inner circle has a lower limit ring extending outward, and the top of the nested body located in the outer circle has an upper limit ring extending outward, and the outer diameter of the lower limit ring is greater than the inner diameter of the upper limit ring. Moreover, among two adjacent nested bodies, the inner wall of the nested body located in the outer circle is also provided with a groove, and the nested body located in the inner circle is provided with a card block that cooperates with the groove, and the groove includes a lower rotating groove, a sliding groove and an upper rotating groove that are connected in sequence, and the upper rotating groove and the lower rotating groove are both arranged along the circumference of the nested body located in the inner circle, and the sliding groove is arranged along the axial direction of the nested body located in the inner circle. When the card block is located in the lower rotating groove, the expansion shell is in a storage state, and when the card block is located in the upper rotating groove, the expansion shell is in an expanded state.
[0005] When the number of nested bodies is greater than or equal to three, during the process of the expansion shell retracting from the expanded state to the stored state, the retraction speed of the nested bodies located in the inner circle is sometimes greater than the retraction speed of the nested bodies located in the outer circle, so that the lower limit ring of the nested bodies located in the inner circle is offset to below the lower limit ring of the nested bodies located in the outer circle, causing the nested bodies located in the outer circle to be unable to retract normally.
[0006] The disclosure of the above background technology content is only used to assist in understanding the inventive concept and technical solution of the present invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Utility Model Content
[0007] The technical problem solved by the utility model is to provide a portable speaker with an expansion shell that can be retracted smoothly.
[0008] In order to solve the above technical problems, the technical solution adopted by the utility model is: a portable speaker, comprising:
[0009] Speaker unit;
[0010] An expansion shell, the expansion shell comprising a plurality of nested bodies which are movably nested together in sequence from the inside to the outside, and the number of the nested bodies is greater than or equal to three;
[0011] The bottoms of the remaining nested bodies except the nested bodies located in the innermost circle and the nested bodies located in the outermost circle are all provided with stop structures, and at least part of the stop structures protrude inwards to stop the adjacent nested bodies located inside the nested bodies where the stop structures are located.
[0012] In one embodiment, the stop structure is a hot melt column, and a convex edge formed by hot melting of the hot melt column protrudes inward.
[0013] In one embodiment, in two adjacent nested bodies, the bottom of the nested body located in the inner circle has a lower limit ring extending outward, and the top of the nested body located in the outer circle has an upper limit ring extending outward, the outer diameter of the lower limit ring is larger than the inner diameter of the upper limit ring, and an annular seal is provided between the lower limit ring and the upper limit ring, and when the two adjacent nested bodies are in an expanded state, the annular seal respectively contacts the lower limit ring and the upper limit ring.
[0014] In one embodiment, the annular sealing member is made of rubber.
[0015] In one embodiment, the annular sealing member is made of silicone.
[0016] In one embodiment, the annular seal is injection molded with the lower limit ring into an integral structure through an injection molding process.
[0017] In one embodiment, a lower material containing groove is provided on the lower limiting ring, and a partial area of the annular sealing member fills the lower material containing groove.
[0018] In one embodiment, the lower material containing trough is annular in shape as a whole.
[0019] In one embodiment, in two adjacent nested bodies, the inner wall of the nested body located in the outer circle is provided with a groove, and the nested body located in the inner circle is provided with a block that cooperates with the groove, and the groove includes a lower rotating groove, a sliding groove and an upper rotating groove that are connected in sequence, and the upper rotating groove and the lower rotating groove are both arranged along the circumference of the nested body located in the inner circle, and the sliding groove is arranged along the axial direction of the nested body located in the inner circle, and when the block is located in the lower rotating groove, the two adjacent nested bodies are in a stored state, and when the block is located in the upper rotating groove, the two adjacent nested bodies are in an expanded state.
[0020] In one embodiment, the upper rotation groove and the lower rotation groove are located on the same side or different sides of the sliding groove.
[0021] The beneficial effect of the utility model is that in the portable speaker, the setting of the stop structure can effectively prevent the inner circle nested body from being misaligned and malfunctioning when the expansion shell is retracted, effectively ensuring the smoothness of the retraction of the expansion shell, reducing the probability of malfunction, and making it easier to automate the assembly of the expansion shell, which is beneficial to improving production efficiency and reducing the manufacturing cost of the portable speaker. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0023] Figure 1 It is a cross-sectional view of the portable speaker of the first embodiment of the utility model in the storage state;
[0024] Figure 2 for Figure 1 The enlarged view of A in FIG.
[0025] Figure 3 This is a schematic diagram of a part of the structure of the portable speaker of the first embodiment of the present utility model;
[0026] Figure 4 This is a schematic diagram of the structure of the portable speaker in the first embodiment of the utility model in the unfolded state;
[0027] Figure 5 It is a schematic structural diagram of the nested body in the portable speaker of the first embodiment of the utility model.
[0028] Description of Figure Numbers:
[0029] 1. Speaker unit;
[0030] 2. Nested body;
[0031] 3. Stop structure; 31. Convex edge;
[0032] 4. Lower limit ring; 41. Lower material trough;
[0033] 5. Upper limit ring;
[0034] 6. Ring seal;
[0035] 7, slot; 71, lower rotating slot; 72, sliding slot; 73, upper rotating slot;
[0036] 8. Card block. DETAILED DESCRIPTION
[0037] The purpose, features and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings.
[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0039] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.
[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.
[0041] In addition, if the meaning of "and / or" appears in the full text is to include three parallel solutions, taking "and / or" as an example, it includes solutions, or solutions, or solutions that are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.
[0042] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0043] Embodiment 1
[0044] Please refer to Figures 1 to 5 , Embodiment 1 of the present invention is: a portable speaker box, comprising a speaker unit 1 and an expansion shell, wherein the expansion shell comprises a plurality of nested bodies 2 which are movably nested together in sequence from the inside to the outside, the number of the nested bodies 2 being greater than or equal to three, the nested body 2 located in the center is provided with a window connected to the inner cavity of the expansion shell, and the speaker unit 1 is installed at the window; except for the nested body 2 located in the innermost circle and the nested body 2 located in the outermost circle, the bottoms of the remaining nested bodies 2 are provided with a stop structure 3, at least part of the area of the stop structure 3 protrudes inwardly to stop the adjacent nested body 2 located on the inner side of the nested body 2 where the stop structure 3 is located, for example, when the number of the nested bodies 2 is three, the stop structure 3 is provided on the nested body 2 located in the middle, and the stop structure 3 can stop the nested body 2 located in the innermost circle.
[0045] In order to facilitate the production and assembly of the expansion shell, in this embodiment, the stop structure 3 is a hot melt column, and the convex edge 31 formed by the hot melt column after hot melting protrudes inward. When assembling the expansion shell, after the nested body 2 located in the inner circle is nested into another nested body 2, the hot melt column on the other nested body 2 is hot melted to form a convex edge 31 that stops the nested body 2 located in the inner circle.
[0046] In two adjacent nested bodies 2, the bottom of the nested body 2 located in the inner circle has a lower limit ring 4 extending outward, and the top of the nested body 2 located in the outer circle has an upper limit ring 5 extending outward. The outer diameter of the lower limit ring 4 is larger than the inner diameter of the upper limit ring 5. In order to ensure the airtightness of the expansion shell, an annular seal 6 is provided between the lower limit ring 4 and the upper limit ring 5. When the two adjacent nested bodies 2 are in the expanded state, the annular seal 6 respectively contacts the lower limit ring 4 and the upper limit ring 5. The material of the annular seal 6 is rubber. Preferably, the material of the annular seal 6 is silicone.
[0047] Optionally, in two adjacent nested bodies 2, the inner wall of the nested body 2 located in the outer ring is provided with a groove 7, and the nested body 2 located in the inner ring is provided with a block 8 that cooperates with the groove 7, and the groove 7 includes a lower rotating groove 71, a sliding groove 72 and an upper rotating groove 73 that are connected in sequence, and the upper rotating groove 73 and the lower rotating groove 71 are both arranged along the circumference of the nested body 2 located in the inner ring, and the sliding groove 72 is arranged along the axial direction of the nested body 2 located in the inner ring. When the block 8 is located in the lower rotating groove 71, the two adjacent nested bodies 2 are in a stored state, and when the block 8 is located in the upper rotating groove 73, the two adjacent nested bodies 2 are in an expanded state, and the upper rotating groove 73 and the lower rotating groove 71 are located on the same side or opposite sides of the sliding groove 72. Preferably, the block 8 is arranged on the lower limit ring 4 and protrudes outward relative to the lower limit ring 4.
[0048] It is easy to understand that when the card block 8 slides along the upper rotation groove 73 or the lower rotation groove 71, the two adjacent nested bodies 2 rotate relative to each other, and when the card block 8 slides along the sliding groove 72, the two adjacent nested bodies 2 axially extend and retract. The upper rotation groove 73 and the lower rotation groove 71 are used to lock the storage state and the unfolded state of the portable speaker respectively. The cooperation between the slot 7 and the card block 8 can effectively improve the effectiveness of the user's operation of changing the state of the portable speaker.
[0049] It should be noted that in other embodiments, the two adjacent nested bodies 2 can also be locked in the stored state and the unfolded state by other means, for example, the slot 7 and the block 8 are not provided, and the state locking is achieved by using a pin in conjunction with a socket, or by other means.
[0050] In this embodiment, the annular seal 6 is injection molded into an integral structure with the lower limit ring 4 through an injection molding process. The annular seal 6 and the lower limit ring 4 are injection molded into an integral structure, which can make it easier to automate the assembly of the portable speaker, which is beneficial to improving the production efficiency of the portable speaker, reducing the manufacturing cost of the portable speaker, and improving the market competitiveness of the portable speaker.
[0051] In order to increase the combined area between the annular seal 6 and the lower stop ring 4 and improve the stability of the connection between the annular seal 6 and the lower stop ring 4, optionally, a lower material storage groove 41 is provided on the lower stop ring 4, and a partial area of the annular seal 6 is filled with the lower material storage groove 41. In this embodiment, the lower material storage groove 41 is annular as a whole, and in other embodiments, the number of the lower material storage grooves 41 can also be multiple, and in this case, the multiple lower material storage grooves 41 are arranged in a ring shape.
[0052] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A portable speaker, characterized in that: include Speaker unit; An expansion shell, the expansion shell comprising a plurality of nested bodies which are movably nested together in sequence from the inside to the outside, and the number of the nested bodies is greater than or equal to three; The bottoms of the remaining nested bodies except the nested bodies located in the innermost circle and the nested bodies located in the outermost circle are all provided with stop structures, and at least part of the stop structures protrude inwards to stop the adjacent nested bodies located inside the nested bodies where the stop structures are located.
2. The portable speaker according to claim 1, characterized in that: The stop structure is a hot melt column, and a convex edge formed by hot melting of the hot melt column protrudes inward.
3. The portable speaker according to claim 1, characterized in that: In two adjacent nested bodies, the bottom of the nested body located in the inner circle has a lower limit ring extending outward, and the top of the nested body located in the outer circle has an upper limit ring extending outward, the outer diameter of the lower limit ring is larger than the inner diameter of the upper limit ring, and an annular seal is provided between the lower limit ring and the upper limit ring. When the two adjacent nested bodies are in an expanded state, the annular seals respectively contact the lower limit ring and the upper limit ring.
4. The portable speaker according to claim 3, characterized in that: The material of the annular sealing element is rubber.
5. The portable speaker according to claim 4, characterized in that: The material of the annular sealing element is silicone.
6. The portable speaker according to claim 4, characterized in that: The annular seal is injection-molded with the lower limit ring to form an integrated structure through an injection molding process.
7. The portable speaker according to claim 6, characterized in that: The lower limiting ring is provided with a lower material containing groove, and a partial area of the annular sealing member fills the lower material containing groove.
8. The portable speaker according to claim 7, characterized in that: The lower material containing trough is annular in shape as a whole.
9. The portable speaker according to claim 1, characterized in that: In two adjacent nested bodies, the inner wall of the nested body located in the outer circle is provided with a groove, and the nested body located in the inner circle is provided with a card block matching the groove, and the groove includes a lower rotating groove, a sliding groove and an upper rotating groove which are connected in sequence, and the upper rotating groove and the lower rotating groove are both arranged along the circumference of the nested body located in the inner circle, and the sliding groove is arranged along the axial direction of the nested body located in the inner circle. When the card block is located in the lower rotating groove, the two adjacent nested bodies are in a stored state, and when the card block is located in the upper rotating groove, the two adjacent nested bodies are in an expanded state.
10. The portable speaker according to claim 9, characterized in that: The upper rotating groove and the lower rotating groove are located on the same side or different sides of the sliding groove.