Ultrathin multipurpose alarm

Abstract

The utility model provides an ultrathin multi-purpose alarm design, which adopts the design that the loudspeaker and the piezoelectric buzzer are arranged in parallel on the same side, so that the occupied space of the composite alarm is saved to the greatest extent in the thickness direction, and two different sound production assemblies are prevented from interfering with each other during working. On the basis that the two shells are arranged side by side, a protruding rib plate structure is further arranged in the shell, two independent sound production cavities are separated through the rib plate structure, the loudspeaker assembly is isolated in the first sound production cavity, and the loudspeaker opening in the surface of the shell is assisted by the first sound production cavity. The structure of the sounding working sound cavity of the loudspeaker assembly is ensured to be complete and not to be interfered by the other piezoelectric buzzer assembly, the piezoelectric buzzer assembly on the other side is also the same, the sounding of the piezoelectric buzzer assembly is prevented from being interfered by the loudspeaker assembly, the shape of the opening of the buzzer is matched with the structures of the second sounding cavity and the piezoelectric plate, and the sounding efficiency is improved. And the working effect of the buzzer is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to loudspeaker sound technology field, specifically, relate to a kind of super thin multi-purpose alarm. BACKGROUND

[0002] Piezoelectric buzzer is widely used in household appliances a sound alarm device.It will be high voltage polarization piezoelectric ceramic sheet pasted on vibrating metal sheet, when adding alternating voltage, will produce mechanical deformation extension and shrink due to piezoelectric effect, use this characteristic vibrating metal sheet vibration and sound, sound short can better alarm effect;Loudspeaker a can be more complete electroacoustic conversion sound device, such as can combine the function of buzzer and loudspeaker, it is inevitable to obtain more ideal warning effect, only through the short and sharp sound of buzzer more easily arouse the attention of surrounding personnel, also can play pre-stored warning information through loudspeaker, give more explicit directional alarm prompt.

[0003] However, both are used for sound but due to the difference of use and sound principle, the function requirement of both is not consistent, so generally when setting buzzer and loudspeaker, both are placed as separate functional devices, forcibly combine the structure of both to sound, easy to interfere with each other, and the use effect of both is not ideal;But there is indeed the demand of saving installation space and simplifying wiring in product, such as only space saving, convenient placement consideration places the setting space of loudspeaker and buzzer together, it is also difficult to meet the functional demand of each other.

[0004] In summary, the existing piezoelectric buzzer and loudspeaker have the technical problem of difficult to combine and unify in structure. UTILITY MODEL CONTENT

[0005] The utility model solves the technical problem that the existing piezoelectric buzzer and loudspeaker have the technical problem of difficult to combine and unify in structure.

[0006] To solve the above problems, the utility model provides a kind of super thin multi-purpose alarm, including loudspeaker assembly, piezoelectric buzzer component and the shell component for containing two, the loudspeaker assembly and piezoelectric buzzer component are arranged in parallel at interval preset distance in shell component, the shell component is provided with the raised rib structure, and first sound cavity and second sound cavity are separated in the position corresponding to loudspeaker assembly and buzzer component respectively, the surface of shell component is provided with loudspeaker opening and buzzer opening in the position corresponding to first sound cavity and second sound cavity respectively, the shape of loudspeaker opening corresponds the outer edge shape of diaphragm of loudspeaker assembly, and the diaphragm end of loudspeaker is exposed;The inner edge shape of second sound cavity matches the outer edge shape of piezoelectric sheet of piezoelectric buzzer component, and the buzzer opening is circular hole with smaller diameter than the inner diameter of second sound cavity.

[0007] The design of the ultra-thin multi-purpose alarm adopts the design of speaker and piezoelectric buzzer on the same side and parallel to each other, thereby saving the space occupied by the composite alarm to the maximum extent in the thickness direction. In order to avoid the interference between the two different sound components during work, the raised rib structure is further arranged in the shell on the basis of parallel arrangement of the two shell bodies, and the two independent sound cavities are separated by the rib structure. The first sound cavity isolates the speaker component therein, and the speaker opening on the surface of the auxiliary shell ensures the sound cavity structure of the speaker component to be complete and not to be interfered by the other piezoelectric buzzer component. The same situation also exists for the piezoelectric buzzer component on the other side, which avoids the interference of the speaker component on the sound of the piezoelectric buzzer. The shape of the buzzer opening is matched with the structure of the second sound cavity and the piezoelectric sheet, which ensures the working effect of the buzzer and effectively solves the technical problem that the piezoelectric buzzer and the speaker are difficult to be combined and unified in structure.

[0008] As a preferred scheme, the shell assembly includes a shell upper cover and a shell lower cover that are buckled to each other, the speaker opening and the buzzer opening are arranged on the shell upper cover, the first sound cavity is composed of a frame-shaped rib integrally connected to the shell upper cover, and a ring-shaped adhesive strip structure is arranged between the speaker opening and the frame-shaped rib. The end face of the diaphragm side of the speaker component is fixed to the shell upper cover through the adhesive strip structure.

[0009] The design provides a preferred shell assembly design, that is, the two half shells are buckled to each other, the first sound cavity for the sound of the speaker is composed of a frame-shaped rib integrally fixed to the shell upper cover, and the speaker component is fixed in the frame-shaped rib. The end face of the diaphragm side of the speaker component is fixed to the shell upper cover through the adhesive strip component, which ensures the good fixing effect of the speaker and the sound effect of the cavity.

[0010] As a preferred scheme, the shell upper cover and the shell lower cover are provided with ring-shaped raised ribs at positions corresponding to the second sound cavity, and the mouth edges of the ring-shaped raised ribs are provided with buckling grooves for buckling. The piezoelectric sheet is clamped and fixed by the mutual buckling of the ring-shaped raised ribs of the shell upper cover and the shell lower cover.

[0011] In unison with the above structure, the second sound cavity is composed of the mutual buckling and butt joint of the ring-shaped raised ribs of the two cover bodies, and the piezoelectric sheet is supported and fixed by the ring-shaped raised ribs, which effectively ensures the position stability of the piezoelectric sheet and ensures that it is suspended in the second sound cavity to meet the working requirements of the buzzer.

[0012] As a preferred embodiment, the edge of the annular raised rib on the upper cover of the housing is provided with a recessed wire groove for connecting the piezoelectric element to the outside of the second sound-generating cavity. This design optimizes the wiring design of the piezoelectric element, and the recessed structure at the edge of the annular raised rib allows for effective routing of the wiring outside the sound-generating cavity without damaging the wiring.

[0013] As a preferred embodiment, a wire clamp structure is provided between the frame-shaped rib and the outer edge of the housing cover to secure the wiring of the speaker assembly and the piezoelectric buzzer assembly. The base of the wire clamp structure is fixedly connected to the inner surface of the housing cover. This design further optimizes the wiring design within the housing by providing a wire clamp structure on the outside of the frame-shaped rib, allowing the wiring to fit snugly against the housing cover.

[0014] As a preferred embodiment, the lower cover of the housing has a side slot structure at the side edge corresponding to the wire clip structure, for leading the wiring of the speaker assembly and the piezoelectric buzzer assembly out of the housing assembly. This design optimizes the overall external wiring of the alarm; the side slot on the side edge of the lower cover corresponding to the wire clip position allows for convenient connection of control and power lines.

[0015] As a preferred embodiment, a limiting post assembly is provided between the wire groove and the wire clip structure to secure the piezoelectric element's wiring to the housing cover. The limiting post assembly is integrally connected and fixed to the housing cover. Based on the aforementioned wire clip design, a limiting post integrally connected to the housing cover is further provided between the wire groove and the wire clip within the housing cover. This structure guides the wiring, preventing tangling and damage.

[0016] As a preferred embodiment, the lower cover of the housing has a slanted side edge structure on the side edge opposite to the speaker opening. By replacing the usual right-angle edge structure with this slanted side edge, the external volume of the alarm is reduced without affecting the sound output, and the complexity of the mold for housing processing is reduced, thus lowering the manufacturing cost. Attached Figure Description

[0017] Figure 1 A structural schematic diagram of an ultra-thin multi-purpose alarm provided by this utility model;

[0018] Figure 2 for Figure 1 Exploded view of the ultra-thin multi-purpose alarm device;

[0019] Figure 3 for Figure 1 A schematic diagram of the exploded structure of the ultra-thin multi-purpose alarm from another angle;

[0020] Figure 4 for Figure 1 A schematic diagram of the upper cover of the ultra-thin multi-purpose alarm device;

[0021] wherein, Figures 1-4 in:

[0022] 1, the upper cover of the shell; 1-1, the line card structure; 1-2, the limiting column assembly; 2, the lower cover of the shell; 2-1, the oblique side edge structure of the shell; 3, the loudspeaker opening; 4, the buzzer opening; 5, the loudspeaker assembly; 6, the piezoelectric sheet; 7, the second sound cavity; 8, the annular convex rib plate; 8-1, the wire slot; 9, the adhesive strip structure; 10, the frame-shaped rib plate; 11, the first sound cavity. DETAILED DESCRIPTION

[0023] The technical scheme of the utility model will be described clearly and completely below, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] Reference Figures 1-4 , Figure 1 It is a structural schematic view of the ultra-thin multi-purpose alarm provided by the utility model; Figure 2 It is Figure 1 It is an exploded structural schematic view of the ultra-thin multi-purpose alarm; Figure 3 It is Figure 1 It is an exploded structural schematic view of the ultra-thin multi-purpose alarm from another angle; Figure 4 It is Figure 1 It is a structural schematic view of the upper cover of the shell of the ultra-thin multi-purpose alarm.

[0025] The ultra-thin multi-purpose alarm provided by the embodiment comprises a loudspeaker assembly 5, a piezoelectric buzzer assembly and a shell assembly for containing the two, the loudspeaker assembly 5 and the piezoelectric buzzer assembly are arranged side by side in the shell assembly at a preset distance, the shell assembly is provided with a convex rib structure, a first sound cavity 11 and a second sound cavity 7 are separated at positions respectively corresponding to the loudspeaker assembly 5 and the buzzer assembly, the shell assembly is provided with a loudspeaker opening 3 and a buzzer opening 4 at positions respectively corresponding to the first sound cavity 11 and the second sound cavity 7, the loudspeaker opening 3 is shaped corresponding to the outer edge shape of the diaphragm of the loudspeaker assembly 5, and the diaphragm end of the loudspeaker is exposed; the inner edge shape of the second sound cavity 7 matches the outer edge shape of the piezoelectric sheet 6 of the piezoelectric buzzer assembly, and the buzzer opening 4 is a circular hole with a diameter smaller than the inner diameter of the second sound cavity 7.

[0026] The ultrathin multi-purpose alarm is designed with a loudspeaker and a piezoelectric buzzer arranged side by side on the same side, so that the space occupied by the combined alarm is saved to the maximum extent in the thickness direction. In order to avoid interference between the two different sound emitting components during operation, a raised rib structure is further arranged in the shell based on the parallel arrangement of the two shell bodies, and the raised rib structure separates two independent sound emitting cavities. The first sound emitting cavity 11 isolates the loudspeaker component 5 therein, and the loudspeaker opening 3 on the surface of the auxiliary shell ensures the sound emitting cavity structure of the loudspeaker component 5 to be complete and not interfered by the other piezoelectric buzzer component. The same situation also applies to the piezoelectric buzzer component on the other side, so as to avoid the interference of the loudspeaker component 5 on the sound emitting of the piezoelectric buzzer component. The shape of the buzzer opening 4 matches the structure of the second sound emitting cavity 7 and the piezoelectric sheet 6, so as to ensure the working effect of the buzzer, and effectively solve the technical problem that the piezoelectric buzzer and the loudspeaker are difficult to be combined and unified in structure.

[0027] In the technical scheme provided by the embodiment, the shell assembly includes a shell upper cover 1 and a shell lower cover 2 that are buckled to each other, the loudspeaker opening 3 and the buzzer opening 4 are arranged on the shell upper cover 1, the first sound emitting cavity 11 is formed by a frame-shaped rib 10 that is integrally connected to the shell upper cover 1, a ring-shaped adhesive strip structure 9 is arranged between the loudspeaker opening 3 and the frame-shaped rib 10, and the end face of the sound membrane of the loudspeaker component 5 is fixed to the shell upper cover 1 through the adhesive strip structure 9.

[0028] The design provides a preferred shell assembly design, that is, two half shells are buckled to each other, the first sound emitting cavity 11 for the sound emitting of the loudspeaker is formed by a frame-shaped rib 10 that is integrally fixed to the shell upper cover 1, the loudspeaker component 5 is fixed in the frame-shaped rib 10, and the end face of the sound membrane of the loudspeaker component 5 is fixed to the shell upper cover 1 through the adhesive strip assembly, so as to ensure the good fixing effect of the loudspeaker and the sound emitting effect of the cavity.

[0029] In the technical scheme provided by the embodiment, the shell upper cover 1 and the shell lower cover 2 are each provided with a ring-shaped raised rib 8 at the position corresponding to the second sound emitting cavity 7, the mouth edge of the ring-shaped raised rib 8 is provided with a buckling groove for buckling, and the ring-shaped raised ribs 8 of the shell upper cover 1 and the shell lower cover 2 are buckled to each other to clampingly fix the piezoelectric sheet 6.

[0030] In unison with the above structure, the second sound emitting cavity 7 is formed by the mutual buckling and abutting of the ring-shaped raised ribs 8 of the two part covers, and the piezoelectric sheet 6 is supported and fixed by the ring-shaped raised ribs 8, so as to effectively ensure the position stability of the piezoelectric sheet 6 and ensure that the piezoelectric sheet 6 is suspended in the second sound emitting cavity 7 to meet the working requirements of the buzzer.

[0031] In the technical scheme provided by the embodiment, the mouth edge of the annular raised rib plate 8 of the upper cover 1 of the shell is provided with a notched wire slot 8-1 for wire connection of the piezoelectric sheet 6 to the second sound cavity 7. The design optimizes the wire connection design of the piezoelectric sheet 6, and the structure of the notched mouth edge of the annular raised rib plate 8 can effectively lead out the wire connection to the outside of the sound cavity without damaging the wire connection.

[0032] In the technical scheme provided by the embodiment, the wire clamping structure 1-1 is arranged between the frame-shaped rib plate 10 and the outer side edge of the upper cover 1 of the shell for fixing the wire connection of the loudspeaker assembly 5 and the piezoelectric buzzer assembly, and the base of the wire clamping structure 1-1 is fixedly connected to the inner surface of the upper cover 1 of the shell. The design further optimizes the wire connection design in the shell, and the wire clamping structure 1-1 is arranged on the outer side of the frame-shaped rib plate 10 to fix the wire connection to the upper cover 1 of the shell.

[0033] In the technical scheme provided by the embodiment, the shell lower cover 2 is provided with a side slot structure at the side edge position corresponding to the wire clamping structure 1-1 for leading out the wire connection of the loudspeaker assembly 5 and the piezoelectric buzzer assembly to the outside of the shell assembly. The design optimizes the overall wire connection of the alarm, and the side slot is arranged at the position of the wire clamping structure on the side edge of the shell lower cover 2, which can conveniently lead out the control and power supply wires.

[0034] In the technical scheme provided by the embodiment, the limiting column assembly 1-2 is arranged between the wire slot 8-1 and the wire clamping structure 1-1 for fixing the wire connection of the piezoelectric sheet 6 to the upper cover 1 of the shell, and the limiting column assembly 1-2 is integrally connected and fixed to the upper cover 1 of the shell. On the basis of the structure of the above wire clamping design, a limiting column integrally connected to the upper cover is further arranged in the upper cover 1 between the wire slot 8-1 and the wire clamping structure, which can guide the wire connection and avoid damage caused by winding.

[0035] In the technical scheme provided by the embodiment, the shell lower cover 2 is provided with a shell inclined side edge structure 2-1 at the side edge of the end away from the loudspeaker opening 3. The shell inclined side edge replaces the usual right-angled edge structure, reduces the outer volume of the alarm under the premise of not affecting the sound production, and reduces the complexity of the mold for shell processing, thereby reducing the processing cost.

[0036] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present disclosure.

Claims

1. An ultra-thin multi-purpose alarm, characterized in that, The application relates to a speaker assembly (5), a piezoelectric buzzer assembly and a shell assembly for containing the two, the speaker assembly (5) and the piezoelectric buzzer assembly are arranged side by side in the shell assembly at a preset distance, a convex rib plate structure is arranged in the shell assembly, a first sound cavity (11) and a second sound cavity (7) are separated at positions respectively corresponding to the speaker assembly (5) and the buzzer assembly, a speaker opening (3) and a buzzer opening (4) are arranged on the surface of the shell assembly at positions respectively corresponding to the first sound cavity (11) and the second sound cavity (7), the shape of the speaker opening (3) corresponds to the shape of the outer edge of a sound film of the speaker assembly (5), and the sound film end of the speaker is exposed; the inner edge shape of the second sound cavity (7) matches the outer edge shape of a piezoelectric sheet (6) of the piezoelectric buzzer assembly, and the buzzer opening (4) is a circular hole with a diameter smaller than the inner diameter of the second sound cavity (7).

2. The ultra-thin multi-alarm of claim 1, wherein, The shell assembly comprises a shell upper cover (1) and a shell lower cover (2) which are buckled to each other, the speaker opening (3) and the buzzer opening (4) are arranged on the shell upper cover (1), the first sound cavity (11) is formed by a frame-shaped rib plate (10) which is integrally connected to the shell upper cover (1), a ring-shaped adhesive strip structure (9) is arranged between the speaker opening (3) and the frame-shaped rib plate (10), and the end face of the sound film side of the speaker assembly (5) is fixedly attached to the shell upper cover (1) through the adhesive strip structure (9).

3. The ultra-thin multi-alarm of claim 2, wherein, The shell upper cover (1) and the shell lower cover (2) are each provided with a ring-shaped convex rib plate (8) at a position corresponding to the second sound cavity (7), the mouth edge of the ring-shaped convex rib plate (8) is provided with a buckling groove for buckling, and the piezoelectric sheet (6) is clamped and fixed through the mutual buckling of the ring-shaped convex rib plates (8) of the shell upper cover (1) and the shell lower cover (2).

4. The ultra-thin multi-alarm of claim 3, wherein, The mouth edge of the ring-shaped convex rib plate (8) of the shell upper cover (1) is provided with a notched wire slot (8-1) for external wiring of the piezoelectric sheet (6) to the second sound cavity (7).

5. The ultra-thin multi-alarm of claim 4, wherein, A wire clamping structure (1-1) is arranged between the frame-shaped rib plate (10) and the outer edge of the shell upper cover (1) for fixing the respective wires of the speaker assembly (5) and the piezoelectric buzzer assembly, and the base of the wire clamping structure (1-1) is fixedly connected to the inner surface of the shell upper cover (1).

6. The ultra-thin multi-alarm of claim 5, wherein, The shell lower cover (2) is provided with a side opening groove structure at a side edge position corresponding to the wire clamping structure (1-1) for leading the respective wires of the speaker assembly (5) and the piezoelectric buzzer assembly out of the shell assembly.

7. The ultra-thin multi-alarm of claim 5, wherein, A limiting column assembly (1-2) is arranged between the wire slot (8-1) and the wire clamping structure (1-1) for fixedly attaching the wire of the piezoelectric sheet (6) to the shell upper cover (1), and the limiting column assembly (1-2) is integrally connected and fixed to the shell upper cover (1).

8. The ultra-thin multi-alarm of claim 2, wherein, The shell lower cover (2) is provided with a shell inclined side edge structure (2-1) at a side edge of an end away from the speaker opening (3).

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