Multifunctional loudspeaker

Abstract

The utility model provides a multifunctional loudspeaker. The multifunctional loudspeaker comprises a frame, a T iron, a first wiring terminal, a second wiring terminal, a loudspeaker assembly and a buzzer assembly. The T-shaped iron is coaxially fixed at the outer bottom of the basin stand, and a positioning column is coaxially arranged at the upper end of the T-shaped iron and extends into the basin stand; the first wiring terminal and the second wiring terminal are both fixed on the outer wall of the basin stand; the loudspeaker assembly is fixed on the inner side of the basin stand and is connected with the upper end of the positioning column. The loudspeaker assembly is electrically connected with the first wiring terminal. The buzzer assembly is coaxially fixed at the lower end of the T iron and is electrically connected with the second wiring terminal; according to the utility model, the integration of the loudspeaker and the buzzer is realized, so that the occupied space of parts can be reduced and the cost of the parts can be reduced when the loudspeaker and the buzzer are applied to a product which needs to have the functions of voice broadcast and buzzing alarm at the same time.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker technology, and more specifically, to a multifunctional loudspeaker. Background Technology

[0002] A loudspeaker is a device used to convert electrical signals into sound wave signals. Currently, loudspeakers on the market can only play voice sounds, which is a drawback of limited functionality. When a product needs to have both voice broadcasting and buzzer alarm functions, it needs to be equipped with separate loudspeakers and buzzers, which results in the disadvantages of large space occupation and high component costs for loudspeakers and buzzers. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a multifunctional loudspeaker that integrates a loudspeaker and a buzzer, thereby reducing the space occupied by the components and the cost of the components when applied to products that need to have both voice broadcasting and buzzer alarm functions.

[0004] This utility model provides a multifunctional loudspeaker, including a frame, a T-shaped iron, a first terminal block, a second terminal block, a loudspeaker assembly, and a buzzer assembly. The T-shaped iron is coaxially fixed to the outer bottom of the frame, and a positioning post is coaxially provided at the upper end of the T-shaped iron, extending into the frame. The first terminal block and the second terminal block are both fixed to the outer wall of the frame. The loudspeaker assembly is fixed to the inner side of the frame and connected to the upper end of the positioning post, and is electrically connected to the first terminal block. The buzzer assembly is coaxially fixed to the lower end of the T-shaped iron and is electrically connected to the second terminal block.

[0005] By adopting the above-described structure, this utility model integrates the speaker and the buzzer, thereby reducing the space occupied by the components and lowering the cost of the components when applied to products that require both voice broadcasting and buzzer alarm functions.

[0006] In one possible implementation, the loudspeaker assembly includes a spider, a voice coil, pole pieces, a neodymium iron boron (NdFeB) magnet, a U-cup, and a diaphragm. The pole pieces, NdFeB magnet, and U-cup are coaxially fixed to the upper end of a positioning post from bottom to top. The outer edge of the U-cup has a downwardly extending annular edge, which forms an annular gap with the outer wall of the NdFeB magnet and the outer wall of the pole piece. The upper end of the voice coil is inserted into the annular gap and engages with the annular edge, the NdFeB magnet, and the pole piece. The outer edge of the spider is fixed to the inner wall of the frame, and the inner edge of the spider is fixed to the outer peripheral wall of the voice coil. The voice coil is electrically connected to a first terminal. The outer edge of the diaphragm is fixed to the opening at the upper end of the frame, and the inner edge of the diaphragm is fixed to the outer wall of the voice coil located above the spider. With this structure, the loudspeaker assembly can be reliably connected to the inner side of the frame and the upper end of the positioning post.

[0007] In one possible implementation, the diaphragm includes an annular support portion and an annular diaphragm portion; the support portion includes a horizontal section and an arcuate section, the horizontal section is fixed to the opening at the upper end of the frame, the arcuate section protrudes upward and the outer edge of the arcuate section is integrated with the inner edge of the horizontal section, the diaphragm portion has a bowl-shaped structure, the upper end of the diaphragm portion is fixed to the inner edge of the arcuate section, and the lower end of the diaphragm portion is fixed to the outer peripheral wall of the voice coil located above the spider; by adopting the above-mentioned diaphragm, since the diaphragm in the diaphragm has a bowl-shaped structure, that is, the side of the diaphragm is an annular arc edge, it has the advantage of large diaphragm deformability, that is, when the car speaker plays low-frequency music, it has the advantage of good low-frequency response.

[0008] In one possible implementation, a first annular step is provided on the inner wall of the upper end of the diaphragm, and the horizontal section is supported on the first annular step and bonded to the first annular step. With this structure, under the action of the first annular step, the first annular step can reliably support the horizontal section, that is, it can reliably support the diaphragm. And since the horizontal section is bonded to the first annular step, the diaphragm can be reliably and conveniently fixed to the diaphragm.

[0009] In one possible implementation, an annular cavity is provided at the bottom of the first annular step, and the annular cavity is filled with adhesive. The horizontal section is also bonded and fixed to the first annular step by the adhesive located in the annular cavity. By adopting this structure, the adhesive used to bond the horizontal section and the first annular step can penetrate into the annular groove, thereby further improving the bonding strength between the adhesive and the first annular step, that is, improving the bonding strength between the horizontal section and the first annular step, and thus improving the fixation firmness between the diaphragm and the frame.

[0010] In one possible implementation, the electrode, neodymium iron boron, and U-cup are fixed to the upper end of the positioning post by bolts. The bolt's threaded portion passes through the U-cup, neodymium iron boron, and electrode in sequence from top to bottom and is then fixed to the upper end of the positioning post. With this structure, the electrode, neodymium iron boron, and U-cup can be reliably coaxially fixed to the upper end of the positioning post under the action of the bolts.

[0011] In one possible implementation, a second annular step is provided on the inner side wall of the basin frame, and the outer edge of the spring is supported on the second annular step and bonded to the second annular step. With this structure, the second annular step can reliably support the outer edge of the spring under the action of the second annular step, and since the outer edge of the spring is bonded to the second annular step, the spring can be reliably and conveniently fixed to the basin frame.

[0012] In one possible implementation, the buzzer assembly includes an EVA pad, a bottom cover, a piezoelectric piece, and a housing. A groove is provided at the lower end of the T-shaped iron. The EVA pad and the bottom cover are fixed in the groove from bottom to top. The upper end of the housing is inserted into the groove and fixed to the T-shaped iron. The EVA pad and the bottom cover are also pressed tightly into the groove by the housing. The piezoelectric piece is fixed to the inner side of the upper end of the housing and electrically connected to a second terminal block. The piezoelectric piece and the bottom cover are in clearance fit. With this structure, the buzzer assembly can be reliably fixed to the lower end of the T-shaped iron.

[0013] In one possible implementation, a third annular step is provided on the inner wall at the upper end of the housing, and the outer edge of the piezoelectric sheet is supported on the third annular step and bonded to the third annular step. With this structure, the third annular step can provide reliable support for the piezoelectric sheet, and the outer edge of the piezoelectric sheet can be fixed to the third annular step by bonding, that is, the piezoelectric sheet can be reliably and conveniently fixed to the housing.

[0014] In one possible implementation, the buzzer assembly further includes a protective cover; the protective cover is disposed on the outside of the housing and fits with the housing with a clearance, the upper end of the protective cover is sleeved on the outside of the lower end of the T-iron and fixed to the T-iron; by setting the protective cover, the protective cover can play a protective role for the buzzer assembly to avoid impact damage to the buzzer assembly; in addition, after the upper end of the protective cover is sleeved on the outside of the lower end of the T-iron, it is bonded and fixed to the lower end of the T-iron. Attached Figure Description

[0015] Figure 1 This is the first three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 This is a second three-dimensional structural schematic diagram of the present invention;

[0017] Figure 3 This is a cross-sectional structural diagram of the present invention. Detailed Implementation

[0018] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0019] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0020] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0021] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] See Figure 1-3 As shown in the figure, this application discloses a multifunctional loudspeaker, including a frame 1, a T-shaped iron 2, a first terminal block 3, a second terminal block 4, a loudspeaker assembly 5, and a buzzer assembly 6. The T-shaped iron 2 is coaxially fixed to the outer bottom of the frame 1, and a positioning post 21 is coaxially provided at the upper end of the T-shaped iron 2, extending into the frame 1. The first terminal block 3 and the second terminal block 4 are both fixed to the outer wall of the frame 1. The loudspeaker assembly 5 is fixed to the inner side of the frame 1 and connected to the upper end of the positioning post 21, and the loudspeaker assembly 5 is electrically connected to the first terminal block 3. The buzzer assembly 6 is coaxially fixed to the lower end of the T-shaped iron 2 and electrically connected to the second terminal block 4.

[0023] The loudspeaker assembly 5 includes a spider 51, a voice coil 52, an electrode 53, a neodymium iron boron magnet 54, a U-cup 55, and a diaphragm 56. The electrode 53, neodymium iron boron magnet 54, and U-cup 55 are coaxially fixed to the upper end of the positioning post 21 from bottom to top. The outer edge of the U-cup 55 is provided with a downwardly extending annular edge 551. An annular gap 57 is formed between the annular edge 551, the outer wall of the neodymium iron boron magnet 54, and the outer wall of the electrode 53. The upper end of the voice coil 52 is inserted into the annular gap 57 and is connected to the annular edge. 551, neodymium iron boron 54 and electrode 53 are fitted together with a gap. The outer edge of the spider 51 is fixed to the inner wall of the frame 1. The inner edge of the spider 51 is fixed to the outer peripheral wall of the voice coil 52. The voice coil 52 is electrically connected to the first terminal 3. The outer edge of the diaphragm 56 is fixed to the opening at the upper end of the frame 1. The inner edge of the diaphragm 56 is fixed to the outer wall of the voice coil 52 located above the spider 51. With this structure, the speaker assembly can be reliably connected to the inner side of the frame and the upper end of the positioning post.

[0024] The diaphragm 56 includes a ring-shaped support portion 561 and a ring-shaped diaphragm portion 562. The support portion 561 includes a horizontal section 5611 and an arc-shaped section 5612. The horizontal section 5611 is fixed to the opening at the upper end of the frame 1. The arc-shaped section 5612 protrudes upward and its outer edge is connected to the inner edge of the horizontal section 5611. The diaphragm portion 562 has a bowl-shaped structure. The upper end of the diaphragm portion 562 is fixed to the inner edge of the arc-shaped section 5612, and the lower end of the diaphragm portion 562 is fixed to the outer peripheral wall of the voice coil 52 located above the spider 51. By adopting the above-mentioned diaphragm, since the diaphragm in the diaphragm has a bowl-shaped structure, that is, the side of the diaphragm is a ring-shaped arc edge, it has the advantage of large diaphragm deformability, that is, when the car speaker plays low-frequency music, it has the advantage of good low-frequency response.

[0025] A first annular step 11 is provided on the inner wall of the upper end of the trellis frame 1. The horizontal section 5611 is supported on the first annular step 11 and is bonded and fixed to the first annular step 11. With this structure, under the action of the first annular step, the first annular step can reliably support the horizontal section, that is, it can reliably support the diaphragm. And because the horizontal section is bonded and fixed to the first annular step, the diaphragm can be reliably and conveniently fixed to the trellis frame.

[0026] The bottom of the first annular step 11 is provided with an annular cavity 12, which is filled with adhesive. The horizontal section 5611 is also bonded and fixed to the first annular step 11 by the adhesive located in the annular cavity 12. With this structure, the adhesive used to bond the horizontal section and the first annular step can penetrate into the annular groove, thereby further improving the bonding strength between the adhesive and the first annular step, that is, improving the bonding strength between the horizontal section and the first annular step, and thus improving the fixation firmness between the diaphragm and the frame.

[0027] The electrode 53, neodymium iron boron 54, and U-cup 55 are fixed to the upper end of the positioning post 21 by bolts. The bolt shank passes through the U-cup 55, neodymium iron boron 54, and electrode 53 from top to bottom and is then fixed to the upper end of the positioning post 21. With this structure, the electrode, neodymium iron boron, and U-cup can be reliably coaxially fixed to the upper end of the positioning post under the action of the bolts.

[0028] A second annular step 13 is provided on the inner side wall of the basin frame 1. The outer edge of the spring 51 is supported on the second annular step 13 and is bonded and fixed to the second annular step 13. With this structure, the second annular step can reliably support the outer edge of the spring under the action of the second annular step. Since the outer edge of the spring is bonded and fixed to the second annular step, the spring can be reliably and conveniently fixed to the basin frame.

[0029] The buzzer assembly 6 includes an EVA pad 61, a bottom cover 62, a piezoelectric piece 63, and a housing 64. A groove 22 is provided at the lower end of the T-iron 2. The EVA pad 61 and the bottom cover 62 are fixed in the groove 22 from bottom to top. The upper end of the housing 64 is inserted into the groove 22 and fixed to the T-iron 2. The EVA pad 61 and the bottom cover 62 are also pressed into the groove 22 by the housing 64. The piezoelectric piece 63 is fixed to the inner side of the upper end of the housing 64 and is electrically connected to the second terminal 4. The piezoelectric piece 63 and the bottom cover 62 are in clearance fit. With this structure, the buzzer assembly can be reliably fixed to the lower end of the T-iron.

[0030] A third annular step 641 is provided on the inner wall of the upper end of the outer casing 64. The outer edge of the piezoelectric sheet 63 is supported on the third annular step 641 and bonded to the third annular step 641. With this structure, the third annular step can provide reliable support for the piezoelectric sheet, and the outer edge of the piezoelectric sheet can be fixed to the third annular step by bonding. That is, the piezoelectric sheet can be reliably and conveniently fixed to the outer casing.

[0031] The buzzer assembly 6 also includes a protective cover 65; the protective cover 65 is fitted over the outside of the housing 64 and has a clearance fit with the housing 64, and the upper end of the protective cover 65 is sleeved on the outside of the lower end of the T-iron 2 and fixed to the T-iron 2; through the setting of the protective cover, the protective cover can protect the buzzer assembly to avoid impact damage to the buzzer assembly; in addition, after the upper end of the protective cover is sleeved on the outside of the lower end of the T-iron, it is bonded and fixed to the lower end of the T-iron.

[0032] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A multifunctional loudspeaker, characterized in that: The device includes a basin frame (1), a T-shaped iron (2), a first terminal block (3), a second terminal block (4), a speaker assembly (5), and a buzzer assembly (6). The T-shaped iron (2) is coaxially fixed to the outer bottom of the basin frame (1), and a positioning post (21) is coaxially provided at the upper end of the T-shaped iron (2), which extends into the basin frame (1). The first terminal block (3) and the second terminal block (4) are both fixed to the outer wall of the basin frame (1). The speaker assembly (5) is fixed to the inner side of the basin frame (1) and connected to the upper end of the positioning post (21), and the speaker assembly (5) is electrically connected to the first terminal block (3). The buzzer assembly (6) is coaxially fixed to the lower end of the T-shaped iron (2) and electrically connected to the second terminal block (4).

2. The multifunctional loudspeaker according to claim 1, characterized in that: The loudspeaker assembly (5) includes a spider (51), a voice coil (52), an electrode (53), a neodymium iron boron (54), a U-cup (55), and a diaphragm (56); the electrode (53), neodymium iron boron (54), and U-cup (55) are coaxially fixed to the upper end of the positioning post (21) from bottom to top. The outer edge of the U-cup (55) is provided with a downwardly extending annular extension edge (551), and an annular gap (57) is formed between the annular extension edge (551) and the outer wall of the neodymium iron boron (54) and the outer wall of the electrode (53). The voice coil (51) is... 2) The upper end is inserted into the annular gap (57) and is gap-fitted with the annular extension edge (551), neodymium iron boron (54) and electrode (53). The outer edge of the spring (51) is fixed on the inner wall of the frame (1). The inner edge of the spring (51) is fixed to the outer peripheral wall of the voice coil (52). The voice coil (52) is electrically connected to the first terminal (3). The outer edge of the diaphragm (56) is fixed at the opening at the upper end of the frame (1). The inner edge of the diaphragm (56) is fixed to the outer wall of the voice coil (52) located above the spring (51).

3. The multifunctional loudspeaker according to claim 2, characterized in that: The diaphragm (56) includes a ring-shaped support portion (561) and a ring-shaped diaphragm portion (562); the support portion (561) includes a horizontal section (5611) and an arc-shaped section (5612), the horizontal section (5611) is fixed at the opening at the upper end of the frame (1), the arc-shaped section (5612) protrudes upward and the outer edge of the arc-shaped section (5612) is connected to the inner edge of the horizontal section (5611) as a whole, the diaphragm portion (562) has a bowl-shaped structure, the upper end of the diaphragm portion (562) is fixed to the inner edge of the arc-shaped section (5612), and the lower end of the diaphragm portion (562) is fixed to the outer peripheral wall of the voice coil (52) located above the spider (51).

4. The multifunctional loudspeaker according to claim 3, characterized in that: The inner wall of the upper end of the basin frame (1) is provided with a first annular step (11), and the horizontal section (5611) is supported on the first annular step (11) and bonded and fixed to the first annular step (11).

5. The multifunctional loudspeaker according to claim 4, characterized in that: The bottom of the first annular step (11) is provided with an annular cavity (12), which is filled with adhesive. The horizontal segment (5611) is also bonded and fixed to the first annular step (11) by the adhesive located in the annular cavity (12).

6. The multifunctional loudspeaker according to claim 2, characterized in that: The electrode (53), neodymium iron boron (54) and U-cup (55) are fixed to the upper end of the positioning post (21) by bolts. The bolt thread passes through the U-cup (55), neodymium iron boron (54) and electrode (53) from top to bottom and is then fixed to the upper end of the positioning post (21).

7. The multifunctional loudspeaker according to claim 2, characterized in that: The inner wall of the basin frame (1) is provided with a second annular step (13), and the outer edge of the elastic wave (51) is supported on the second annular step (13) and bonded and fixed to the second annular step (13).

8. The multifunctional loudspeaker according to claim 1, characterized in that: The buzzer assembly (6) includes an EVA pad (61), a bottom cover (62), a piezoelectric piece (63), and a housing (64); the lower end of the T-iron (2) is provided with a groove (22), the EVA pad (61) and the bottom cover (62) are fixed in the groove (22) from bottom to top, the upper end of the housing (64) is inserted into the groove (22) and fixed to the T-iron (2), the EVA pad (61) and the bottom cover (62) are also pressed into the groove (22) by the housing (64), the piezoelectric piece (63) is fixed on the inner side of the upper end of the housing (64) and electrically connected to the second terminal (4), and the piezoelectric piece (63) is clearance-fitted with the bottom cover (62).

9. The multifunctional loudspeaker according to claim 8, characterized in that: A third annular step (641) is provided on the inner wall of the upper end of the outer shell (64), and the outer edge of the piezoelectric sheet (63) is supported on the third annular step (641) and bonded and fixed to the third annular step (641).

10. The multifunctional loudspeaker according to claim 8 or 9, characterized in that: The buzzer assembly (6) also includes a protective cover (65); the protective cover (65) covers the outside of the housing (64) and is fitted with the housing (64) with a clearance, and the upper end of the protective cover (65) is sleeved on the outside of the lower end of the T-iron (2) and fixed to the T-iron (2).

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