Buzzer

Abstract

The utility model belongs to the technical field of electronic buzzer, and discloses a buzzer. The buzzer comprises an outer shell and a sound production assembly, the outer shell comprises a main shell body, an inner cover and an outer cover, the inner cover is connected with the main shell body, the outer cover covers the outer side of the inner cover and is connected with the main shell body, a conical hole is formed in the inner cover, and the small end of the conical hole faces the main shell body; the sounding assembly is arranged in the main shell, and the sounding end of the sounding assembly at least partially penetrates through the small end of the taper hole. The shell with the main shell and the outer cover is arranged, the sound production assembly is arranged in the shell, and the shell can play a role in protecting the sound production assembly; the inner cover is arranged, the conical hole is formed in the inner cover, the sound production end of the sound production assembly at least partially penetrates through the small end of the conical hole, when sound produced by the sound production assembly passes through the conical hole, the conical hole can enable the sound to be transmitted in a concentrated mode, the effect of enhancing the sound intensity is achieved, and sound transmission and diffusion are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic sounders, in particular to a buzzer. Background Art

[0002] A buzzer is an integrated electronic sounder powered by DC voltage. It is widely used as a sounding device in electronic products such as computers, printers, copiers, and alarms. Buzzers are mainly divided into two types: piezoelectric buzzers and electromagnetic buzzers.

[0003] In the prior art, a buzzer is usually provided with a shell and a sound-generating component is provided inside the shell, and the shell is used to cover and protect the sound-generating component; however, the provision of the shell affects sound propagation, resulting in a smaller sound, making it difficult to balance protection performance and sound transmission performance.

[0004] Therefore, there is an urgent need to provide a buzzer that provides a sound amplification function while ensuring protection performance and improving the sound intensity of the buzzer. Utility Model Content

[0005] The purpose of the utility model is to provide a buzzer, which can provide a sound amplification function while ensuring the protection performance and improve the sound intensity of the buzzer.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] The utility model provides a buzzer, which includes:

[0008] The housing comprises a main housing, an inner cover and an outer cover, wherein the inner cover is connected to the main housing, the outer cover is arranged outside the inner cover and connected to the main housing, and the inner cover is provided with a tapered hole, the small end of the tapered hole is arranged toward the main housing;

[0009] The sound-generating component is arranged in the main shell, and the sound-generating end of the sound-generating component is at least partially penetrated through the small end of the tapered hole.

[0010] As an optional technical solution for a buzzer, a first sound-emitting through hole is provided on the outer cover at a position corresponding to the conical hole, a sealed sound-transmitting diaphragm is sandwiched between the inner cover and the outer cover, and the first sound-emitting through hole and the conical hole are respectively located on both sides of the sealed sound-transmitting diaphragm.

[0011] As an optional technical solution for a buzzer, the sealed sound-transmitting diaphragm includes a central portion and a peripheral portion arranged around the edge of the central portion, the thickness of the central portion is less than the thickness of the peripheral portion, the central portion covers the large end of the conical hole, and the peripheral portion is fitly clamped between the inner cover and the outer cover.

[0012] As an optional technical solution for a buzzer, the inner cover is further provided with a supporting structure, which is hollow and located at the large end of the tapered hole, and can support the sealed sound-transmitting diaphragm.

[0013] As an optional technical solution for a buzzer, the support structure includes a support ring and support ribs connected to the support ring. The axial direction of the support ring coincides with the axial direction of the conical hole. A plurality of support ribs are arranged at circumferential intervals around the support ring, and the support ribs are connected to the inner wall of the conical hole.

[0014] As an optional technical solution for the buzzer, the support structure further includes reinforcing ribs, the reinforcing ribs are arranged in a one-to-one correspondence with the supporting ribs, and the supporting ribs are connected to the inner wall of the tapered hole through the reinforcing ribs.

[0015] As an optional technical solution for the buzzer, a second sound output through hole is provided on the support structure, and the setting position of the second sound output through hole matches the setting position of the first sound output through hole.

[0016] As an optional technical solution for a buzzer, the first sound-emitting through hole includes a main circular hole, and the setting position of the main circular hole matches the setting position of the sound-emitting component.

[0017] As an optional technical solution for a buzzer, the sound-generating component includes a square sound-generating element.

[0018] As an optional technical solution for a buzzer, the outer cover is snap-connected to the main shell.

[0019] Beneficial effects:

[0020] The utility model provides a buzzer, which includes a shell and a sound-emitting component. The shell includes a main shell, an inner cover, and an outer cover. The inner cover is connected to the main shell, and the outer cover is arranged outside the inner cover and connected to the main shell. The inner cover is provided with a tapered hole, and the small end of the tapered hole is arranged toward the main shell. The sound-emitting component is arranged in the main shell, and the sound-emitting end of the sound-emitting component is at least partially passed through the small end of the tapered hole. By providing a shell with a main shell and an outer cover, the sound-emitting component is arranged in the shell, and the shell can protect the sound-emitting component. By providing an inner cover and providing a tapered hole on the inner cover, the sound-emitting end of the sound-emitting component is at least partially passed through the small end of the tapered hole. When the sound emitted by the sound-emitting end passes through the tapered hole, the tapered hole can concentrate the sound and enhance the sound intensity, which helps to spread and diffuse the sound. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an exploded view of a buzzer provided by an embodiment of the present utility model;

[0022] Figure 2 1 is a schematic structural diagram of a buzzer provided by an embodiment of the present utility model;

[0023] Figure 3 This is a first cross-sectional view of the inner cover provided by an embodiment of the present utility model;

[0024] Figure 4 is a second cross-sectional view of the inner cover provided by an embodiment of the present utility model;

[0025] Figure 5 This is a schematic structural diagram of the outer cover provided by an embodiment of the present utility model;

[0026] Figure 6 is a cross-sectional view of a buzzer provided by an embodiment of the present utility model;

[0027] Figure 7 yes Figure 6 A partial enlarged view of point A in the middle.

[0028] In the picture:

[0029] 10. Outer shell; 11. Main shell; 12. Inner cover; 121. Conical hole; 122. Support structure; 1221. Support ring; 1222. Support rib; 1223. Reinforcement rib; 13. Outer cover; 131. First sound outlet hole; 1311. Main circular hole; 1312. Arc hole; 14. Lower cover; 15. Fixing ring;

[0030] 20. Sealed sound-transmitting diaphragm; 21. Center; 22. Peripheral;

[0031] 30. Sealing ring;

[0032] 40. Sound-generating component. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0034] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0035] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0037] like Figures 1 to 7 As shown, this embodiment provides a buzzer, which includes a shell 10 and a sound-emitting component 40. The shell 10 includes a main shell 11, an inner cover 12 and an outer cover 13. The inner cover 12 is connected to the main shell 11, and the outer cover 13 is arranged on the outside of the inner cover 12 and connected to the main shell 11. A conical hole 121 is provided on the inner cover 12, and the small end of the conical hole 121 is arranged toward the main shell 11; the sound-emitting component 40 is arranged in the main shell 11, and the sound-emitting end of the sound-emitting component 40 is at least partially passed through the small end of the conical hole 121.

[0038] By providing a housing 10 with a main shell 11 and an outer cover 13, a sound-generating assembly 40 is disposed within the housing 10, which provides protection for the sound-generating assembly 40. By providing an inner cover 12 with a tapered hole 121, the sound-generating end of the sound-generating assembly 40 is at least partially inserted through the small end of the tapered hole 121. When sound emitted from the sound-generating end passes through the tapered hole 121, the tapered hole 121 allows the sound to be concentrated and propagated, thereby enhancing the sound intensity and facilitating the propagation and diffusion of the sound. The buzzer can be used to issue indication signals, warning signals, emergency signals, and other indication signals in telecommunications, electrical equipment, and other circuits.

[0039] Furthermore, a first sound-emitting through-hole 131 is provided on the outer cover 13 at a position corresponding to the tapered hole 121. A sealed sound-permeable diaphragm 20 is sandwiched between the inner cover 12 and the outer cover 13. The first sound-emitting through-hole 131 and the tapered hole 121 are located on either side of the sealed sound-permeable diaphragm 20. By providing the first sound-emitting through-hole 131 on the outer cover 13, the sound emitted by the sound-emitting assembly 40 can be transmitted through the first sound-emitting through-hole 131, and the outer cover 13 does not block the sound propagation. By providing the sealed sound-permeable diaphragm 20 between the inner cover 12 and the outer cover 13, the sealed sound-permeable diaphragm 20 can be attached to the inner cover 12 and cover the tapered hole 121, thereby preventing moisture from intruding through the tapered hole 121, achieving a waterproof effect and ensuring the safe use of the sound-emitting assembly 40.

[0040] In this embodiment, the provision of the sealed sound-permeable diaphragm 20 provides waterproofing, and thus, the first sound outlet opening 131 can be provided in the outer cover 13, further enhancing sound transmission. It will be appreciated that in other embodiments, the sealing sound-permeable diaphragm 20 and the first sound outlet opening 131 are not provided in the outer cover 13, and the outer cover 13 can be directly mounted on the main housing 11 to form an enclosed space, thereby providing protection for the sound-generating assembly 40.

[0041] See also Figure 1 and Figure 2 Specifically, the housing 10 further includes a lower cover 14 and a fixing ring 15. The outer cover 13 is disposed at the top of the main housing 11, and the lower cover 14 is disposed at the bottom of the main housing 11. The fixing ring 15 is sleeved onto the outside of the main housing 11 and is used to secure the buzzer to an external device. The fixing ring 15 may be provided with internal threads, allowing it to be threadedly connected to the main housing 11 and the external device.

[0042] Optionally, the outer cover 13 is snap-connected to the main housing 11. In this embodiment, the main housing 11 is cylindrical, the lower cover 14 is snap-connected to the bottom end of the main housing 11, and the sound-generating assembly 40 is located in the middle of the main housing 11. The top end of the main housing 11 is provided with a radially protruding mounting portion, the inner cover 12 is placed on the mounting portion, and the sealing sound-permeable diaphragm 20 is placed on the inner cover 12. The outer cover 13 is snap-connected to the mounting portion, and the outer cover 13 presses the sealing sound-permeable diaphragm 20 and the inner cover 12 together against the mounting portion.

[0043] See also Figure 6 and Figure 7Furthermore, the sealing sound-permeable diaphragm 20 includes a central portion 21 and a peripheral portion 22. The peripheral portion 22 surrounds the edge of the central portion 21 and is thinner than the peripheral portion 22. The central portion 21 covers the larger end of the tapered hole 121, and the peripheral portion 22 is sandwiched between the inner cover 12 and the outer cover 13. By providing the central portion 21 and the peripheral portion 22 with different thicknesses, the peripheral portion 22 is thicker. This allows the outer cover 13 to press the sealing sound-permeable diaphragm 20 and the inner cover 12 together against the main housing 11 after installation, and the contact area at the abutment is large, effectively ensuring a tight installation. The smaller thickness of the central portion 21 allows the central portion 21 to vibrate with the sound during sound transmission, without hindering sound transmission. In this embodiment, the central portion 21 and the peripheral portion 22 are integrally formed; the thickness of the central portion 21 is 0.01 mm, and the thickness of the peripheral portion 22 is 0.4 mm.

[0044] See also Figure 3 and Figure 4 To prevent the sealed sound-transmitting diaphragm 20 from collapsing, the inner cover 12 is further provided with a support structure 122. This support structure 122 is hollow and located at the larger end of the tapered hole 121. This structure supports the sealed sound-transmitting diaphragm 20. By providing the support structure 122 on the inner cover 12, the hollow structure does not obstruct sound transmission. The support structure 122 supports the sealed sound-transmitting diaphragm 20, preventing collapse of the sealed sound-transmitting diaphragm 20 and affecting the normal operation of the buzzer.

[0045] Optionally, the support structure 122 includes a support ring 1221 and support ribs 1222. The support ribs 1222 are connected to the support ring 1221. The axial direction of the support ring 1221 coincides with the axial direction of the tapered hole 121. Multiple support ribs 1222 are provided at intervals around the circumference of the support ring 1221. The support ribs 1222 are connected to the inner wall of the tapered hole 121. By providing the support ring 1221 and the support ribs 1222, the axial direction of the support ring 1221 coincides with the axial direction of the tapered hole 121, so that the installation position of the support ring 1221 matches the installation position of the tapered hole 121, thereby facilitating sound transmission. By providing multiple support ribs 1222 at intervals around the support ring 1221, the support ring 1221 and the support ribs 1222 cooperate to effectively support the sealed sound-transmitting diaphragm 20.

[0046] Optionally, the support structure 122 further includes reinforcing ribs 1223, which are arranged in a one-to-one correspondence with the support ribs 1222. The support ribs 1222 are connected to the inner wall of the tapered hole 121 through the reinforcing ribs 1223. By providing the reinforcing ribs 1223, the strength of the support ribs 1222 can be increased.

[0047] In this embodiment, the inner cover 12 is an integrated structure; the first end of the support rib 1222 is connected to the support ring 1221, and the second end of the support rib 1222 is connected to the inner wall of the conical hole 121; the support rib 1222 is triangular in shape, and the reinforcement rib 1223 is arranged at the second end of the support rib 1222 and is located at the bottom of the support rib 1222, and the bottom of the support rib 1222 is connected to the inner wall of the conical hole 121 through the reinforcement rib 1223.

[0048] See also Figure 5 To ensure better sound propagation and diffusion, a second sound outlet hole is provided on the support structure 122. The location of the second sound outlet hole matches the location of the first sound outlet hole 131. By providing the second sound outlet hole on the support structure 122, the support structure 122 is prevented from obstructing sound propagation.

[0049] Optionally, the first sound outlet hole 131 includes a main circular hole 1311, and the location of the main circular hole 1311 matches the location of the sound generating assembly 40. By providing the main circular hole 1311, the outer cover 13 does not block the sound emitted by the sound generating assembly 40.

[0050] In this embodiment, the first sound outlet opening 131 also includes multiple arcuate holes 1312, which are spaced apart around the periphery of the main circular opening 1311. The second sound outlet opening includes a circular hole located at the center of the support ring 1221 and fan-shaped holes located between two adjacent support ribs 1222. The circular hole matches the position of the main circular opening 1311, and the fan-shaped holes match the position of the arcuate holes 1312. Specifically, there are six support ribs 1222, six fan-shaped holes, and six arcuate holes 1312.

[0051] In this embodiment, the sound-producing assembly 40 includes a square sound-producing element. By arranging the sound-producing element in a square shape, the sound-producing capability is maintained while occupying a small space. The specific structure and principle of the sound-producing assembly 40 can be referred to in the prior art and will not be described in detail here.

[0052] In this embodiment, the buzzer further includes a sealing ring 30, which is positioned between the outer cover 13 and the main housing 11. The sealing ring 30 can be made of rubber. When the outer cover 13 is snap-fitted onto the main housing 11, the outer cover 13 presses the sealing ring 30 against the top of the main housing 11. The sealing ring 30 prevents moisture from entering through the gap between the outer cover 13 and the main housing 11.

[0053] The buzzer provided in this embodiment can improve the sound diffusion ability by providing an inner cover 12 with a tapered hole 121; the sealed sound-transmitting diaphragm 20 is thick in the middle and thin at the periphery, which is both waterproof and vibrates with sound, and the sealed sound-transmitting diaphragm 20 does not block sound; a support structure 122 is provided on the inner cover 12 to support the sealed sound-transmitting diaphragm 20 and prevent the sealed sound-transmitting diaphragm 20 from collapsing; corresponding sound outlet holes are provided on both the inner cover 12 and the outer cover 13, so that the inner cover 12 and the outer cover 13 do not hinder sound propagation, thereby ensuring the sound diffusion ability of the buzzer. The structure is simple and reasonable, the waterproof effect is good, and it has level 6 dustproof performance and level 5 waterproof performance.

[0054] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Buzzer, characterized in that, include: The housing (10) comprises a main housing (11), an inner cover (12) and an outer cover (13), wherein the inner cover (12) is connected to the main housing (11), and the outer cover (13) is arranged outside the inner cover (12) and connected to the main housing (11), and the inner cover (12) is provided with a tapered hole (121), and the small end of the tapered hole (121) is arranged toward the main housing (11); A sound-generating component (40) is disposed in the main housing (11), and a sound-generating end of the sound-generating component (40) is at least partially disposed through the small end of the tapered hole (121).

2. The buzzer according to claim 1, characterized in that: A first sound outlet hole (131) is provided on the outer cover (13) at a position corresponding to the tapered hole (121); a sealed sound-permeable diaphragm (20) is sandwiched between the inner cover (12) and the outer cover (13); the first sound outlet hole (131) and the tapered hole (121) are respectively located on both sides of the sealed sound-permeable diaphragm (20).

3. The buzzer according to claim 2, characterized in that: The sealed sound-transmitting diaphragm (20) includes a central portion (21) and a peripheral portion (22) arranged around the edge of the central portion (21), the thickness of the central portion (21) is less than the thickness of the peripheral portion (22), the central portion (21) covers the large end of the tapered hole (121), and the peripheral portion (22) is fitted and clamped between the inner cover (12) and the outer cover (13).

4. The buzzer according to claim 2, characterized in that: The inner cover (12) is further provided with a support structure (122), the support structure (122) is hollow and located at the large end of the tapered hole (121), and the support structure (122) is capable of supporting the sealed sound-transmitting diaphragm (20).

5. The buzzer according to claim 4, characterized in that: The support structure (122) comprises a support ring (1221) and support ribs (1222) connected to the support ring (1221); the axial direction of the support ring (1221) coincides with the axial direction of the tapered hole (121); a plurality of support ribs (1222) are arranged at circumferential intervals around the support ring (1221); and the support ribs (1222) are connected to the inner wall of the tapered hole (121).

6. The buzzer according to claim 5, characterized in that: The support structure (122) further includes reinforcing ribs (1223), the reinforcing ribs (1223) being arranged in a one-to-one correspondence with the support ribs (1222), and the support ribs (1222) being connected to the inner wall of the tapered hole (121) via the reinforcing ribs (1223).

7. The buzzer according to claim 4, characterized in that: A second sound outlet through hole is provided on the support structure (122), and the setting position of the second sound outlet through hole matches the setting position of the first sound outlet through hole (131).

8. The buzzer according to claim 2, characterized in that: The first sound-emitting through hole (131) comprises a main circular hole (1311), and the setting position of the main circular hole (1311) matches the setting position of the sound-emitting component (40).

9. The buzzer according to any one of claims 1 to 8, characterized in that: The sound-generating assembly (40) includes a square sound-generating element.

10. The buzzer according to any one of claims 1 to 8, characterized in that: The outer cover (13) is snap-connected to the main housing (11).

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