Miniature loudspeaker with off-line voice

Abstract

The utility model discloses a miniature loudspeaker with off-line voice, and particularly relates to the field of loudspeakers, which comprises a shell, a first step is arranged at an opening of the shell, a second step is arranged at the bottom of an inner cavity of the shell, a circuit board is arranged in the middle of the first step, and a cover plate is arranged at the top of the circuit board. A support is arranged in the middle of the second step. According to the utility model, the pole piece, the diaphragm and the voice coil are bonded on one side of the support, the wire end of the voice coil is connected with the bonding pad on one side of the support, and the loudspeaker structure composed of the pole piece, the diaphragm, the voice coil and the support and the microphone are connected with the circuit board through the first lead, so that voice can be burnt in advance through the microphone; the burnt voice can be re-burnt according to actual use, the voice can be awakened after being received through the microphone, the result is fed back through the loudspeaker structure, more scene voice music can be stored, and the client can use more scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, and more specifically, to a miniature loudspeaker with off-line voice. Background Art

[0002] A speaker is a device that converts electrical signal energy into sound energy and can radiate sound energy to a limited space or outdoor space. It is commonly known as a horn. The speaker is composed of a fixed permanent magnet, a coil and a conical paper cone. There are electric and electromagnetic types, and they are divided into built-in speakers and external speakers. When the speaker is working, an alternating current whose size and direction change with time passes through the coil. It is used to play music, language and other signals. The performance of the speaker has a great influence on the sound quality. The speaker is the weakest component in the audio equipment, but for the sound effect, it is the most important component.

[0003] Traditional micro speakers have a single function and can only play sounds. They need to be used in conjunction with an external voice chip circuit and cannot record and play voices offline by themselves. Therefore, a micro speaker with offline voice that combines a microphone and a speaker structure is proposed. Utility Model Content

[0004] In order to overcome the above defects of the prior art, the utility model provides a miniature speaker with offline voice to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a miniature speaker with offline voice, comprising a shell, a first step is arranged at the opening of the shell, a second step is arranged at the bottom of the inner cavity of the shell, a circuit board is arranged in the middle of the first step, a cover plate is arranged on the top of the circuit board, a bracket is arranged in the middle of the second step, and a diaphragm is arranged at the bottom of the bracket;

[0006] A voice coil is fixedly connected to the center of the top of the diaphragm, a wire groove is provided on one side of the bracket, two pads are provided on the side of the bracket away from the diaphragm, a first lead is welded on the pad, a pole piece is provided in the middle of the bracket, and a magnetic gap is provided between the bracket and the pole piece;

[0007] A dustproof hole is opened on one side of the shell, a placement platform is fixedly connected to the inner cavity of the shell at a position corresponding to the dustproof hole, a microphone is arranged in the middle of the placement platform, and two second leads are connected to one side of the microphone.

[0008] Preferably, the bracket is configured as a U-cup-shaped structure, and the two pads are bonded and fixed to a position on the surface of the bracket close to the wire groove, and the two pads are located on both sides of the wire groove.

[0009] Preferably, the pole piece is made of magnetic steel, one side of the pole piece is bonded and fixed to the middle of the bracket, the voice coil is located in the middle of the magnetic gap, and the two wire ends of the voice coil pass through the middle of the wire groove and are respectively welded to two pads.

[0010] Preferably, the outer circle of the diaphragm is bonded and fixed to a side wall of the bracket close to the pole piece, and the edge of the side of the diaphragm away from the bracket is bonded and fixed to the second step.

[0011] Preferably, one end of the two first leads away from the soldering pad is soldered to the circuit board, and one end of the two second leads away from the microphone is soldered to the circuit board.

[0012] Preferably, four pins are provided on the circuit board, and the four pins penetrate the middle of the cover plate and are respectively connected to the positive and negative poles of the power supply and the positive and negative poles of the controller.

[0013] Preferably, a rubber sleeve is provided on the outside of the microphone, and the microphone is bonded and fixed to the middle of the placement table through the rubber sleeve.

[0014] Technical effects and advantages of the utility model:

[0015] 1. The utility model firstly bonds the pole piece, the diaphragm and the voice coil to one side of the bracket, connects the wire end of the voice coil to the pad on one side of the bracket, and connects the pole piece, the diaphragm, the voice coil and the bracket to the circuit board through the first lead. The microphone can be used to record the voice in advance, and the recorded voice can be re-recorded according to actual use. The microphone can be awakened by receiving the voice, and the result can be fed back through the speaker structure. More scene voice music can be stored to meet the needs of the client for more scenes.

[0016] 2. The utility model also facilitates the support and positioning of the circuit board and the speaker structure through the first and second steps, which is convenient for assembly and use. At the same time, the wire groove is arranged to facilitate the welding of the two wire ends of the voice coil with the pads on the side of the bracket away from the voice coil, which is convenient for connection and use. The circuit board is protected by the cover plate, and the pins on one side of the circuit board are convenient for connection with the controller and the power supply, which is convenient for use;

[0017] In summary, through the mutual influence of the above-mentioned multiple effects, the speaker structure can be set inside the shell in combination with the microphone and connected to the circuit board inside the shell, so that the speaker can store more scene voice music for offline playback and meet more scenarios of client use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the side cross-sectional structure of the utility model.

[0020] Figure 3 It is a schematic diagram of the top cross-sectional structure of the utility model.

[0021] Figure 4 It is a schematic diagram of the connection structure of the bracket and the pole piece of the utility model.

[0022] Figure 5 For this utility model Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0023] Figure 6 It is a schematic diagram of the top view of the structure of the bracket of the utility model.

[0024] Figure 7 It is a structural schematic diagram of the voice coil of the utility model.

[0025] The accompanying drawings are marked as follows: 1. shell; 2. first step; 3. second step; 4. circuit board; 5. cover plate; 6. diaphragm; 7. voice coil; 8. bracket; 9. pole piece; 10. magnetic gap; 11. wire groove; 12. soldering pad; 13. first lead; 14. placement table; 15. microphone; 16. second lead; 17. dustproof hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] As attached Figure 1-7 The miniature speaker with offline voice shown includes a shell 1, a first step 2 is provided at the opening of the shell 1, a second step 3 is provided at the bottom of the inner cavity of the shell 1, the first step 2 and the second step 3 are convenient for supporting and placing the bracket 8 and the circuit board 4, and it is convenient to assemble and use, a circuit board 4 is provided in the middle of the first step 2, a cover plate 5 is provided on the top of the circuit board 4, and one side of the circuit board 4 is protected by the cover plate 5, a bracket 8 is provided in the middle of the second step 3, a diaphragm 6 is provided at the bottom of the bracket 8, and the diaphragm 6 is supported by the bracket 8, and the speaker composed of the bracket 8 and the diaphragm 6 pole piece 9 can be connected to the microphone 15 through the circuit board 4, so that the voice recorded in advance is recorded through the chip on one side of the circuit board 4;

[0028] The voice coil 7 is fixedly connected to the center of the top of the diaphragm 6, a wire groove 11 is provided on one side of the bracket 8, two pads 12 are provided on the side of the bracket 8 away from the diaphragm 6, and a first lead 13 is welded on the pad 12. A pole piece 9 is provided in the middle of the bracket 8, and a magnetic gap 10 is provided between the bracket 8 and the pole piece 9. The speaker body is formed by the cooperation of the bracket 8 and the pole piece 9, the voice coil 7, the diaphragm 6, and the magnetic gap 10, and the line connection is convenient for use through the wire groove 11;

[0029] A dustproof hole 17 is opened on one side of the shell 1, and a placement platform 14 is fixedly connected to the inner cavity of the shell 1 at a position corresponding to the dustproof hole 17. A microphone 15 is arranged in the middle of the placement platform 14, and two second leads 16 are connected to one side of the microphone 15. The opening of the microphone 15 is protected by the dustproof hole 17, and the microphone 15 is conveniently supported by the placement platform 14, and is conveniently connected to the circuit board 4 through the second lead 16.

[0030] As attached Figure 2 , 5 As shown in , 6, the bracket 8 is configured as a U-cup structure, and two pads 12 are bonded and fixed to the surface of the bracket 8 near the wire groove 11. The two pads 12 are located on both sides of the wire groove 11. The bracket 8 is used to limit the support of the pole piece 9 and the diaphragm 6, and the pads 12 are used to facilitate the line connection of the two wire ends of the voice coil 7, which is convenient for assembly and use.

[0031] As attached Figure 2 , 5 As shown in Figures 6 and 7, the pole piece 9 is made of magnetic steel, one side of the pole piece 9 is bonded and fixed to the middle of the bracket 8, the voice coil 7 is located in the middle of the magnetic gap 10, and the two wire ends of the voice coil 7 pass through the middle of the wire groove 11 and are respectively welded to the two pads 12. Through the cooperation of the pole piece 9, the voice coil 7 and the diaphragm 6, a speaker structure can be formed, which is convenient for playback and use, and is convenient to be connected to the circuit board 4 through the pad 12 and the first lead 13.

[0032] As attached Figure 2 , 5 As shown, the outer ring of the diaphragm 6 is bonded and fixed to the side wall of the bracket 8 close to the pole piece 9, and the side edge of the diaphragm 6 away from the bracket 8 is bonded and fixed to the second step 3, so as to facilitate the connection between the diaphragm 6 and the bracket 8, and support and fix the diaphragm 6 and the bracket 8 on all sides through the second step 3, so as to improve the stability of the bracket 8 and the diaphragm 6.

[0033] As attached Figure 3 , 6As shown, one end of the two first leads 13 away from the solder pad 12 is welded on the circuit board 4, and one end of the two second leads 16 away from the microphone 15 is welded on the circuit board 4, so as to facilitate the connection of the speaker structure and the microphone 15 with the circuit board 4, and facilitate the pre-burning of voice. The burned voice can be re-burned according to actual use. It can be awakened by receiving the voice through the microphone and the result can be fed back through the speaker. More scene voice music can be stored to meet the client's use of more scenarios.

[0034] As attached Figure 1 , 2 As shown, four pins are arranged on the circuit board 4, and the four pins pass through the middle of the cover plate 5 and are respectively connected to the positive and negative poles of the power supply and the positive and negative poles of the controller, so as to facilitate the overall universal effect of the customer and facilitate the connection with the power supply and the controller.

[0035] As attached Figure 3 As shown, a rubber sleeve is provided on the outside of the microphone 15 , and the microphone 15 is bonded and fixed to the middle of the placement platform 14 through the rubber sleeve. The microphone 15 is protected by the rubber sleeve, and the microphone 15 is supported and limited by the placement platform 14 .

[0036] Working principle of the utility model: During assembly, the pole piece 9 is pasted to the middle of one side of the bracket 8, and the voice coil 7 is pasted to the middle of one side of the diaphragm 6, and then the voice coil 7 is inserted into the middle of the magnetic gap 10 formed by the bracket 8 and the pole piece 9, and the diaphragm 6 and the bracket 8 are pasted together at the outer edges of the opposite sides, so that the two wire ends of the voice coil 7 are respectively welded to the two pads 12 on the side of the bracket 8 away from the pole piece 9 through the wire groove 11;

[0037] Then, the speaker structure composed of the bracket 8 and the diaphragm 6 is glued and placed on the second step 3, and the speaker structure is connected to the circuit board 4 through the first lead 13. Then, the microphone 15 is placed in the middle of the placement table 14, and the second lead 16 is connected to the circuit board 4. It is connected to the power supply and the controller respectively through the pins on one side of the circuit board 4. The voice burned by the microphone 15 is recorded through the chip on one side of the circuit board 4, and the result is fed back through the speaker structure. More scene voice music can be stored to meet the client's use of more scenarios. It can be re-burned according to actual use, and can be awakened by receiving voice through the microphone.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A miniature speaker with offline voice, comprising a housing (1), characterized in that: A first step (2) is provided at the opening of the shell (1), a second step (3) is provided at the bottom of the inner cavity of the shell (1), a circuit board (4) is provided in the middle of the first step (2), a cover plate (5) is provided on the top of the circuit board (4), a bracket (8) is provided in the middle of the second step (3), and a diaphragm (6) is provided at the bottom of the bracket (8); A voice coil (7) is fixedly connected to the center of the top of the diaphragm (6); a wire groove (11) is provided on one side of the bracket (8); two solder pads (12) are provided on the side of the bracket (8) away from the diaphragm (6); a first lead (13) is welded to the solder pad (12); a pole piece (9) is provided in the middle of the bracket (8); and a magnetic gap (10) is provided between the bracket (8) and the pole piece (9); A dustproof hole (17) is provided on one side of the shell (1); a placement platform (14) is fixedly connected to a position of the inner cavity of the shell (1) corresponding to the dustproof hole (17); a microphone (15) is provided in the middle of the placement platform (14); and two second leads (16) are connected to one side of the microphone (15).

2. The miniature speaker with offline voice according to claim 1, characterized in that: The bracket (8) is configured as a U-cup-shaped structure, and the two welding pads (12) are bonded and fixed to a position on the surface of the bracket (8) close to the wire groove (11), and the two welding pads (12) are located on both sides of the wire groove (11).

3. The miniature speaker with offline voice according to claim 1, characterized in that: The pole piece (9) is made of magnetic steel, one side of the pole piece (9) is bonded and fixed to the middle of the bracket (8), the voice coil (7) is located in the middle of the magnetic gap (10), and two wire ends of the voice coil (7) pass through the middle of the wire groove (11) and are respectively welded to two welding pads (12).

4. The miniature speaker with offline voice according to claim 1, characterized in that: The outer ring of the diaphragm (6) is bonded and fixed to a side wall of the bracket (8) close to the pole piece (9), and the edge of the side of the diaphragm (6) away from the bracket (8) is bonded and fixed to the second step (3).

5. The miniature speaker with offline voice according to claim 1, characterized in that: One end of the two first leads (13) away from the soldering pad (12) is welded to the circuit board (4), and one end of the two second leads (16) away from the microphone (15) is welded to the circuit board (4).

6. The miniature speaker with offline voice according to claim 1, characterized in that: The circuit board (4) is provided with four plug pins, which penetrate the middle of the cover plate (5) and are respectively connected to the positive and negative electrodes of the power source and the positive and negative electrodes of the controller.

7. The miniature speaker with offline voice according to claim 1, characterized in that: A rubber sleeve is provided on the outside of the microphone (15), and the microphone (15) is bonded and fixed to the middle of the placement platform (14) through the rubber sleeve.

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