Projector sound cavity structure module
By using a speaker and three passive radiators in the projector's acoustic cavity, combined with a ventilated sound tuning hole and a ventilated sound tuning mesh, the problem of limited space in the projector's acoustic cavity was solved, resulting in a significant improvement in sound quality and a reduction in cost.
Patent Information
- Application Number
- CN202520728104.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-17
AI Technical Summary
Existing projector acoustic cavity structures are limited by space constraints, and using multiple speakers results in high costs and poor sound quality.
The design employs a single speaker paired with three passive radiators to enhance sound quality within a limited space. Noise is absorbed through ventilated tuning holes and mesh, increasing the effective volume of the acoustic cavity. Sealant and ultrasonic connections are used to improve structural stability.
Significantly improves sound quality without increasing size, with richer and deeper low-frequency response, reduced cost, and improved sound clarity and purity.
Smart Images
Figure CN223955947U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of projector, concretely relates to a projector sound cavity structure module. BACKGROUND
[0002] With the continuous improvement of social living standards, the application of projector in daily life has been very wide, and people's requirements for projector are also higher and higher, which prompts us to continuously break through and progress in the design of projector sound cavity, and the requirements for using projector sound cavity are also higher and higher, and the trend of projector sound cavity design is to improve the fullness and richness of low frequency, but the existing projector sound cavity structure is limited by too small space and often adopts multiple loudspeaker scheme to improve sound quality, but the cost is high and the sound quality effect cannot meet the requirements. CONTENT OF UTILITY MODEL
[0003] The utility model discloses in order to solve the insufficient of prior art, provide a cost is low, and the sound quality effect is good projector sound cavity structure module.
[0004] In order to solve the above technical problems, the utility model adopts the following technical scheme:
[0005] The projector sound cavity structure module is applied to the projector, and includes:
[0006] The rear shell is provided with a foolproof positioning column in the rear shell, the bottom wall of the rear shell is provided with a first mounting hole and a breathable tuning hole, the breathable tuning hole is provided with a breathable tuning net, and the first mounting hole is provided with a first passive plate;
[0007] The front shell is buckled on the rear shell, and the front shell is provided with a foolproof part in the front shell, the foolproof part is matched with the foolproof positioning column, the left side and the right side between the front shell and the rear shell are respectively provided with a second mounting hole and a third mounting hole, the second mounting hole is provided with a second passive plate, the third mounting hole is provided with a third passive plate, the front side middle part between the front shell and the rear shell is provided with a wire passing hole, the top surface of the front shell is provided with a fourth mounting hole, the fourth mounting hole is provided with a loudspeaker, the loudspeaker is provided with a sealing EVA structure between the loudspeaker and the front shell, the loudspeaker is fixed on the front shell through a screw, and the bottom side of the front shell is ultrasonically connected with the top side of the rear shell.
[0008] And an electronic connector, one end of the electronic connector is connected with the loudspeaker through the wire passing hole, and the SR structure of the electronic connector is clamped in the wire passing hole.
[0009] Preferably, the first passive plate and the rear shell are filled with sealing glue.
[0010] Preferably, the second passive plate and the front shell and the rear shell are filled with sealing glue, and the third passive plate and the front shell and the rear shell are filled with sealing glue.
[0011] Preferably, the middle part of the front side of the rear shell is provided with a hook structure, the hook is provided with a first notch groove with the bottom wall of the rear shell, and the first notch groove is inclined.
[0012] Preferably, the left part and the right part of the bottom wall of the rear side of the rear shell are respectively provided with a notch part.
[0013] Preferably, the top front left part, the top front right part, the top rear left part and the top rear right part of the front shell are respectively provided with a second notch groove.
[0014] With the above technical scheme, the utility model has the following beneficial effects:
[0015] (1) The projection sound cavity structure module has one loudspeaker and three passive plate structures, and the space utilization rate is high.
[0016] (2) The utility model discloses a breathable tuning hole is equipped with breathable tuning net in, and the setting of breathable tuning hole and breathable tuning net can effectively suck away noise, improve the definition and level of sound quality, and can reduce internal resonance and standing wave, thereby improving the purity of sound quality.
[0017] In conclusion, the utility model has the advantages of low cost, good sound quality and the like. ACCURACY OF DRAWINGS
[0018] Figure 1 is a structural schematic view of the utility model;
[0019] Figure 2 is Figure 1 another structural schematic view in another direction;
[0020] Figure 3 is Figure 1 still another structural schematic view in still another direction;
[0021] Figure 4 is a structural schematic view of the rear shell of the utility model. DETAILED DESCRIPTION
[0022] The technical scheme of the utility model will be described clearly and completely in combination with the drawings, and obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments.
[0023] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application, but merely represents selected embodiments of the application.
[0024] All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without creative labor shall fall within the scope of protection of the present application.
[0025] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0026] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0027] Embodiment 1
[0028] In the present embodiment, the present embodiment proposes a projector sound cavity structure module, by adopting a loudspeaker and three passive plate scheme, to effectively utilize the sound cavity space, so as to improve the sound quality, and also can save certain cost.
[0029] As Figures 1-4As shown, in an embodiment of the present application, the projector sound cavity structure module is applied to the projector, which comprises a rear shell 1, a front shell 2 and an electronic connector 3, wherein the rear shell 1 is internally provided with a fool-proof positioning column 4, the fool-proof positioning column 4 is mainly used for fool-proof, the bottom wall of the rear shell 1 is provided with a first mounting hole 5 and a breathable tuning hole, the breathable tuning hole is internally provided with a breathable tuning net 6, the breathable tuning hole and the breathable tuning net 6 can effectively absorb noise, improve the definition and level of sound quality, and can reduce internal resonance and standing wave, thereby improving the purity of sound quality, the first mounting hole 5 is provided with a first passive plate 7, the first passive plate 7 and the rear shell 1 are filled with sealing glue, the sealing glue can seal the first passive plate 7 and the rear shell 1, the front shell 2 is buckled on the rear shell 1 and the front shell 2 is internally provided with a fool-proof part, the fool-proof part is matched with the fool-proof positioning column 4, the specific positioning of the front shell 2 and the rear shell 1 is completed through the cooperation of the fool-proof part and the fool-proof positioning column 4, which can effectively prevent fooling, the left side and the right side between the front shell 2 and the rear shell 1 are respectively provided with a second mounting hole and a third mounting hole, the second mounting hole is internally provided with a second passive plate 8, and the third mounting hole is internally provided with a third passive plate 9, the second passive plate 8 and the front shell 2 and the rear shell 1 are filled with sealing glue, the third passive plate 9 and the front shell 2 and the rear shell 1 are filled with sealing glue, the sealing glue can seal the second passive plate 8 and the front shell 2 and the rear shell 1, and also can seal the third passive plate 9 and the front shell 2 and the rear shell 1, thereby facilitating the formation of corresponding sound cavities in the front shell 2 and the rear shell 1, and facilitating the improvement of sound quality, the front side middle part between the front shell 2 and the rear shell 1 is provided with a wire passing hole 12, the top surface of the front shell 2 is provided with a fourth mounting hole, the fourth mounting hole is internally provided with a loudspeaker 10, the loudspeaker 10 and the front shell 2 are provided with a sealing EVA structure 11, the sealing EVA structure 11 is a closed-cell foam material, which can absorb sound and reduce vibration, seal and buffer, and has light quality, is suitable for complex environment, the loudspeaker 10 is fixed on the front shell 2 through screws, the bottom side of the front shell 2 and the top side of the rear shell 1 are ultrasonic wave connected, that is, after the first passive plate 7, the second passive plate 8, the third passive plate 9, the loudspeaker 10 and the electronic connector 3 are connected, the present application is ultrasonic wave welded between the abutting parts of the front shell 2 and the rear shell 1 (mainly the abutting parts of the outer wall, that is, between the top side of the rear shell 1 and the bottom side of the front shell 2), one end of the electronic connector 3 of the present application passes through the wire passing hole 12 and is connected with the loudspeaker 10, the SR structure of the electronic connector 3 is clamped in the wire passing hole 12, the SR structure of the electronic connector 3 and the wire passing hole 12 are also sealed, the SR structure refers to the stress release structure of the electronic connector 3, which can reduce stress and protect wire.
[0030] The rear shell 1 is provided with a hook structure 13 in the middle of the front side, the hook and the bottom wall of the rear shell 1 are provided with a first gap groove 14, the first gap groove 14 is arranged obliquely, the bottom wall of the rear side of the rear shell is provided with a gap part 15 on the left and the right respectively, the top surface of the front shell 2 is provided with a second gap groove 16 on the left front side, the right front side, the left rear side and the right rear side respectively, the hook structure 13, the gap part 15, the first gap groove 14 and the second gap groove 16 are all arranged for positioning and installation during subsequent use of the application.
[0031] The existing projector acoustic cavity structure is designed as a structure of one loudspeaker 10 cooperating with one passive plate due to space problems, and the sound quality is not good, therefore, better low-frequency performance and sound quality improvement in limited space can improve the market competitiveness of the projector acoustic cavity structure and the projector, the application designs one loudspeaker 10 cooperating with three passive plates, under the premise of not increasing too much volume, the limited acoustic cavity space can be better utilized, the sound quality is significantly improved, the passive plate can increase the effective volume of the acoustic cavity, the low-frequency response is more abundant and deep, in a small acoustic cavity, a single loudspeaker 10 often cannot generate enough low-frequency energy, and the addition of the passive plate can effectively make up for this deficiency, improve the diving depth and quantity feeling of the low frequency, compared with a complex multi-loudspeaker 10 acoustic cavity design, the structure is relatively simple, the number of loudspeakers 10 and the design of related circuits are reduced, thereby the cost is reduced, the front shell 2 and the rear shell 1 of the application are both trapezoidal, the overall structure is simple, and it is beneficial to improving the sound quality as much as possible in limited space.
[0032] The embodiment is not limited in shape, material, structure and the like in any form, and any simple modification, equivalent change and modification of the above embodiment according to the technical essence of the application are all within the protection scope of the technical scheme of the application.
Claims
1. A projector acoustic cavity structure module, applied to a projector, characterized in that, The utility model relates to a kind of loudspeaker, including: Rear shell, prevent stupid positioning column is arranged in rear shell, first installation hole and breathable tuning hole are provided on the bottom wall of rear shell, breathable tuning net is arranged in breathable tuning hole, first passive plate is arranged on first installation hole; Front shell, front shell is buckled on rear shell and prevent stupid piece is arranged in front shell, prevent stupid piece is matched with prevent stupid positioning column, second installation hole and third installation hole are respectively arranged between left side and right side of front shell and rear shell, second passive plate is arranged in second installation hole, third passive plate is arranged in third installation hole, wire hole is arranged in the middle of front side between front shell and rear shell, fourth installation hole is arranged on the top surface of front shell, loudspeaker is arranged in fourth installation hole, sealing EVA structure is arranged between loudspeaker and front shell, loudspeaker is fixed on front shell by screw, ultrasonic wave is connected between the bottom side of front shell and the top side of rear shell; And electronic connector, one end of electronic connector is connected with loudspeaker by wire hole, SR structure of electronic connector is clamped in wire hole.
2. The projector acoustic cavity structure module of claim 1, wherein: Sealing glue is filled between the first passive plate and rear shell.
3. The projector acoustic cavity structure module of claim 1, wherein: Sealing glue is filled between the second passive plate and front shell and rear shell, sealing glue is filled between the third passive plate and front shell and rear shell.
4. The projector acoustic cavity structure module of claim 1, wherein: Hook structure is arranged in the middle of front side of rear shell, first gap groove is arranged between hook and rear shell bottom wall, and the first gap groove is arranged obliquely.
5. The projector acoustic cavity structure module of claim 1, wherein: A gap part is respectively arranged on the left part and the right part of the bottom wall of rear shell rear side.
6. The projector acoustic cavity structure module of claim 1, wherein: Second gap groove is respectively arranged on the top surface of front shell, and the left part of front side, the right part of front side, the left part of rear side and the right part of rear side.