Passive sound box
By designing the resonant cavity and resonant diaphragm structure of the passive speaker, the problem of insufficient sound quality of the passive speaker was solved, and the sound was increased, the transparency was improved, and the cost was reduced, thereby improving the sound quality and reliability.
Patent Information
- Application Number
- CN202423127675.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Common passive speakers on the market change volume by altering the direction of sound or simply through a resonant cavity. This lack of innovation results in complex structures, high costs, and insufficient sound quality.
A passive speaker was designed, comprising a speaker body, a resonant cavity, an inlet port, an outlet port, and a resonant diaphragm. The resonant diaphragm is located inside the resonant cavity. After sound enters the resonant cavity through the inlet port, it drives the resonant diaphragm to release from the outlet port. The structure is simple and enhances the low-frequency texture and sound quality.
It achieves significantly increased and clearer sound, reduces manufacturing costs and material requirements, improves speaker reliability and sound quality, simplifies the production process, and makes it easy to disassemble and repair.
Smart Images
Figure CN223553425U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of electronic product accessories, and more particularly to passive speakers. Background Technology
[0002] A passive speaker is a type of speaker that requires an external power amplifier to drive it. Compared to an active speaker, a passive speaker does not contain a power amplifier circuit. Passive speakers are favored for their simple structure, flexible configuration options, and wide range of applications.
[0003] However, most passive speakers on the market change volume by altering the direction of sound or simply through a resonant cavity. Therefore, further improvements to existing technology are needed. Summary of the Invention
[0004] The purpose of this invention is to provide a passive speaker designed to solve at least one technical problem in the background art.
[0005] To achieve the above objectives, the present invention adopts the following solution: a passive speaker, including a speaker body, the speaker body having a resonant cavity inside, the speaker body also having an inlet hole and an outlet hole, the inlet hole and the outlet hole being respectively connected to the resonant cavity, and also including a resonant diaphragm, the resonant diaphragm being disposed inside the resonant cavity, sound entering the resonant cavity from the inlet hole, driving the resonant diaphragm and being released from the outlet hole.
[0006] The speaker body includes a shell and a cover. The shell has openings on one and / or both sides, and the cover covers the openings.
[0007] The housing contains a fixing part, and the resonant diaphragm is mounted on the fixing part.
[0008] The cover is provided with a snap-fit block, and the fixing part is provided with a snap-fit hole corresponding to the snap-fit block. The cover is fitted onto the housing by the engagement of the snap-fit block and the snap-fit hole.
[0009] The speaker body has a recessed groove extending from the top of the speaker body into the interior of the speaker body, and the sound inlet hole is disposed in the recessed groove.
[0010] The speaker body has an internal adsorption component for attaching to the sound source.
[0011] The sound inlet and / or the sound outlet are provided in one or more sets, and the multiple sets of sound inlet and / or the sound outlet are spaced apart.
[0012] The sound outlet and / or the sound inlet are arranged in a linear, triangular, square, or circular shape.
[0013] The resonant diaphragm, located inside the resonant cavity, is situated on the side closest to the sound outlet.
[0014] The resonant membrane has one or more sets, and the multiple sets of resonant membranes are arranged opposite to each other.
[0015] The advantages of this utility model are: when the sound source is directly assembled on this application, the sound can become significantly louder and clearer, and the structure of this application is relatively simple and practical, which can reduce manufacturing costs and reduce the required materials and components. Attached Figure Description
[0016] Figure 1 This is a structural diagram of a passive speaker. Figure 1 ;
[0017] Figure 2 This is a structural diagram of a passive speaker. Figure 2 ;
[0018] Figure 3 yes Figure 2 A cross-sectional schematic diagram of AA in the middle;
[0019] Figure 4 yes Figure 2 Cross-sectional schematic diagram of BB;
[0020] Figure 5 yes Figure 4 Enlarged view of part A in the middle;
[0021] Figure 6 This is a schematic diagram of the exploded structure of a passive speaker. Detailed Implementation
[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so as to intuitively and vividly understand each technical feature and overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0023] In the description of this utility model, if directional descriptions are involved, such as "up," "down," "front," "back," "left," "right," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. When a feature is referred to as "set," "fixed," or "connected" to another feature, it can be directly set, fixed, or connected to the other feature, or it can be indirectly set, fixed, or connected to the other feature.
[0024] In the description of this utility model, the term "several" means one or more, and "multiple" means two or more. The terms "greater than," "less than," and "exceeding" should be understood as excluding the stated number. The terms "above," "below," and "within" should be understood as including the stated number. The terms "first" and "second" should be understood as distinguishing technical features and not as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.
[0025] Furthermore, unless otherwise defined, the technical and scientific terms used in this invention have the same meanings as commonly understood by one of ordinary skill in the art. The terminology used in this invention is for the purpose of describing particular embodiments only and not for limiting the invention. It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof.
[0026] Example: Figure 1-6As shown, a passive speaker includes a speaker body 1, which has a resonant cavity 10 inside. The speaker body 1 is also provided with an inlet hole 101 and an outlet hole 102, which are respectively connected to the resonant cavity 10. It also includes a resonant diaphragm 2, which is disposed inside the resonant cavity 10. Sound enters the resonant cavity 10 through the inlet hole 101, drives the resonant diaphragm 2, and is released through the outlet hole 102. When the sound source is directly assembled on this application, the sound can become significantly louder and clearer. Moreover, the structure of this application is relatively simple and practical, which can reduce manufacturing costs, reduce the required materials and components, thereby making the production process more direct and efficient, and can reduce the requirements for precision. The simpler structure means fewer potential failure points, thereby improving the overall reliability of the speaker. The speaker with a simple structure is easier to disassemble and repair, reducing maintenance costs and time.
[0027] The resonant diaphragm 2, located inside the resonant cavity 10, is situated on the side closest to the sound outlet 102. The resonant diaphragm enhances the low-frequency texture and improves the sound quality. The vibration of the resonant diaphragm generates low-frequency sound waves. As the sound waves diffuse through the resonant diaphragm, the passive speaker can better reproduce low-frequency sound effects and enhance the low-frequency texture. The passive speaker can also better transmit audio signals and improve the sound quality.
[0028] The speaker body 1 includes a shell 11 and a cover 12. The shell 11 has openings 110 on one and / or both sides. The cover 12 covers the openings 110. The sound inlet 101 is located on the top of the shell 11, and the sound outlet 102 is located on the cover 12. The resonant cavity 10 is located inside the shell 11. The openings 110 are connected to the resonant cavity 10. The resonant diaphragm can enhance the low-frequency texture and improve the sound quality. When the resonant diaphragm vibrates, it generates low-frequency sound waves. Through the vibration of the resonant diaphragm, the passive speaker can better reproduce low-frequency sound effects and enhance the low-frequency texture. The passive speaker can better transmit audio signals and improve the sound quality.
[0029] The housing 11 is provided with a fixing part 111, and the resonant diaphragm 2 is assembled on the fixing part 111 and located near the opening 111. The fixing part is provided so that the resonant diaphragm can be fixed in the housing. After the sound enters from the sound inlet hole on the housing, it passes through the resonant cavity, through the resonant diaphragm, and is released from the sound outlet hole on the cover.
[0030] The housing 11 includes an upper housing and a lower housing. The upper housing is detachably assembled to the lower housing. When the inside of the passive speaker is dirty, the upper housing can be removed from the lower housing for cleaning.
[0031] The lower housing has a plug-in block on the side facing the upper housing, and the upper housing has a plug-in hole corresponding to the plug-in block. The lower housing can be detachably assembled to the upper housing through the cooperation of the plug-in block and the plug-in hole. When the inside of the passive speaker is dirty, the upper housing can be removed from the lower housing for cleaning through the cooperation of the plug-in block and the plug-in hole.
[0032] The cover 12 is provided with a snap-fit block 121, and the fixing part 111 and / or the resonant diaphragm 2 are provided with snap-fit holes 112 corresponding to the snap-fit block 121. The cover 12 is fitted onto the housing 11 through the cooperation of the snap-fit block 121 and the snap-fit hole 112. The sound outlet 102 is provided on the cover 11. The resonant diaphragm 2 is placed between the fixing part 111 and the cover 11, and the cooperation of the snap-fit block and the snap-fit hole allows the cover to be disassembled. When it is necessary to replace the resonant diaphragm inside the housing, the cover can be removed to replace the resonant diaphragm, or when the inside of the passive speaker is dirty, the cover can be removed to clean the resonant cavity.
[0033] The snap-fit block 121 is provided with a hook, which is fastened to the inner wall of the housing 11. The hook makes the cover more secure when it is closed on the housing and less likely to fall off.
[0034] The speaker body 1 has a placement groove 13 recessed from the top of the speaker body 1 toward the interior of the speaker body 1, and the sound inlet 101 is disposed in the placement groove 13. The placement groove is provided in this application so that the sound source can be fixed on the passive speaker through the placement groove.
[0035] The speaker body 1 has an adsorption component 131 for attaching to the sound source inside the speaker body 1 and at one end of the sound inlet 101. The adsorption component allows the passive speaker to be fixed together with the sound source, and the sound emitted by the sound source can enter the resonant cavity through the sound inlet.
[0036] The speaker body 1 has an internal receiving groove corresponding to the adsorption member 131. The adsorption member 131 is assembled in the receiving groove, and the receiving groove is provided so that the adsorption member can be stably fixed in the shell.
[0037] The sound outlet 102 and / or the sound inlet 101 are linear, triangular, square, or circular. The linear sound outlet 102 can produce a more uniform sound distribution. Compared with a circular sound outlet, the linear sound outlet can more effectively disperse sound energy to a wider area. The design of the linear sound outlet helps to enhance the directivity of the sound. The design of the linear sound outlet can also reduce standing waves and resonance phenomena inside the speaker. This design can make the sound more concentrated in a specific direction, reduce sound scattering and reflection, thereby improving the clarity and intelligibility of the sound. The triangular sound inlet design can help disperse and reduce standing waves and resonance, making the sound purer.
[0038] The resonant diaphragm 2 has one or more sets, with multiple sets of resonant diaphragms 2 arranged opposite to each other. Setting multiple sets of resonant diaphragms can broaden the frequency response range of the speaker, so that the sound from low frequency to high frequency can be reproduced more accurately and delicately, thereby enhancing the richness and layering of the music. This design allows the passive speaker to adapt to more diverse music types. Whether it is the melodious tune of classical music or the strong rhythm of rock music, it can be performed excellently. It helps to achieve sound balance, balances the sound output of different frequency bands, reduces distortion and coloration, and makes the sound more natural and harmonious. This balanced sound performance helps to improve the user's listening experience, allowing them to feel a more realistic and delicate emotional expression when listening to music.
[0039] The sound inlet 101 and / or the sound outlet 102 are provided in one or more sets, and the multiple sets of sound inlet 101 and / or sound outlet 102 are arranged at intervals. The multiple sets of sound inlet and / or sound outlet are provided so that the sound can fully enter the resonant cavity through the sound inlet and be fully released through the sound outlet.
[0040] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A passive speaker, comprising a speaker body, characterized in that: The speaker body has a resonant cavity inside. The speaker body is also provided with an inlet hole and an outlet hole. The inlet hole and the outlet hole are respectively connected to the resonant cavity. It also includes a resonant diaphragm. The resonant diaphragm is disposed inside the resonant cavity. Sound enters the resonant cavity from the inlet hole, drives the resonant diaphragm, and is released from the outlet hole.
2. The passive speaker according to claim 1, characterized in that: The speaker body includes a shell and a cover. The shell has openings on one and / or both sides, and the cover covers the openings.
3. The passive speaker according to claim 2, characterized in that: The housing is provided with a fixing part, and the resonant diaphragm is assembled on the fixing part.
4. The passive speaker according to claim 3, characterized in that: The cover is provided with a snap-fit block, and the fixing part is provided with a snap-fit hole corresponding to the snap-fit block. The cover is fitted onto the housing by the engagement of the snap-fit block and the snap-fit hole.
5. The passive speaker according to claim 1, characterized in that: The speaker body has a recessed groove extending from the top of the speaker body into the interior of the speaker body, and the sound inlet hole is disposed in the recessed groove.
6. The passive speaker according to claim 1, characterized in that: The speaker body has an internal adhesive element for attaching to the sound source.
7. The passive speaker according to claim 1, characterized in that: The resonant diaphragm, located inside the resonant cavity, is situated on the side closest to the sound outlet.
8. The passive speaker according to claim 1, characterized in that: The resonant membrane has one or more sets, and the multiple sets of the resonant membrane are arranged opposite to each other.
9. The passive speaker according to claim 1, characterized in that: The sound inlet and / or the sound outlet have one or more sets, and the multiple sets of the sound inlet and / or the sound outlet are spaced apart.
10. The passive speaker according to any one of claims 1-9, characterized in that: The sound outlet and / or the sound inlet are arranged in a linear, triangular, square, or circular shape.