Miniature loudspeaker with off-line voice

Abstract

The invention discloses a miniature loudspeaker with offline voice, and relates to the technical field of loudspeakers, the miniature loudspeaker comprises a single body, a shell, a circuit board and a microphone, the single body is composed of a support with a soldering lug U cup, a magnetic steel pole piece, a voice coil and a diaphragm, the back of the support is bonded with a first bonding pad and a second bonding pad, one side of the magnetic steel pole piece is bonded in the support, and the other side of the magnetic steel pole piece is bonded in the diaphragm. The lead wire face of the voice coil is bonded to the middle position of the diaphragm, and a magnetic gap is formed between the interior of the support and the outer edge of the magnetic steel pole piece. According to the miniature loudspeaker with the off-line voice, the loudspeaker and the microphone are combined together through the circuit, voice is burnt in advance for a chip in the circuit, the burnt voice can be burnt again according to actual use, the loudspeaker can wake up after receiving the voice through the microphone, a result is fed back through the loudspeaker, and through the built-in and external arrangement of the microphone, the microphone can be used for playing off-line voice. While meeting the requirements, the product can meet more use requirements and use scenes.

Description

Technical Field

[0001] The invention relates to the technical field of loudspeakers, in particular to a miniature loudspeaker with off-line voice. Background Art

[0002] With the rapid development of science and technology, especially the continuous advancement of information technology, people's dependence on and demand for smart devices are increasing. Under this trend, micro speakers, as an important part of smart devices, have greatly expanded their application scope. Nowadays, micro speakers are not only widely integrated into smartphones, becoming an indispensable element of people's daily communication and entertainment, but also play a key role in smart wearable devices, such as smart watches, health monitoring equipment, etc.

[0003] Traditional micro speakers only have the function of sound playback and cannot achieve voice interaction, which limits their application in smart devices. In addition, the microphones on some speakers are mostly external and have a limited scope of use. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a miniature speaker with offline voice, which solves the problem that traditional miniature speakers only have the function of sound playback but cannot realize voice interaction, which limits their application in smart devices, and the microphones on some speakers are mostly external and have a limited scope of use.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a miniature speaker with offline voice, including a monomer and a shell, a circuit board and a microphone, wherein the monomer is composed of a bracket with a U-cup with a welding piece, a magnetic steel pole piece, a voice coil and a diaphragm.

[0006] Pad 1 and pad 2 are bonded to the back of the bracket, one side of the magnetic pole piece is bonded to the inside of the bracket, the lead surface of the voice coil is bonded to the middle position of the diaphragm, a magnetic gap is formed between the inside of the bracket and the outer edge of the magnetic pole piece, the other side of the voice coil is arranged in the magnetic gap inside the bracket, a diaphragm step matching the diaphragm is arranged on the inner side of the bracket, the bonding surface of the diaphragm is bonded to the diaphragm step inside the bracket, and lead 4 and lead 3 are welded to pad 1 and pad 2 respectively.

[0007] Preferably, the welding piece U cup is injection-molded in one piece, and when the bracket is injection-molded, the U cup is also injection-molded on the bracket to form an injection-molded bracket.

[0008] Preferably, the lead surface of the voice coil is provided with lead 1 and lead 2, and the bracket is also provided with a notch for leading out lead 1 and lead 2. Lead 1 and lead 2 are led out from the notch of the bracket and are respectively welded to pad 1 and pad 2 on the back of the bracket through welding points.

[0009] Preferably, a monomer step adapted to the monomer is provided inside the shell, and the assembled monomer is integrally bonded to the monomer step inside the shell.

[0010] Preferably, pin one, pin two, pin three and pin four are riveted on the circuit board respectively, the other end of lead three is welded to the SP- pad on the circuit board, and the other end of lead four is welded to the SP+ pad on the circuit board. A circuit board step that matches the circuit board is also provided in the housing, and the circuit board is bonded to the circuit board step.

[0011] Preferably, a cover plate is also provided on the shell, and the cover plate is bonded to the circuit board, and the circuit board is sealed in the shell, pin one and pin four are respectively connected to the negative pole and positive pole of the power supply, and pin two and pin three are both connected to the control device. After the control is connected, voice conversation can be realized as required.

[0012] Preferably, the microphone is wrapped by a rubber sleeve, and the microphone is arranged outside the shell, and pin one and pin two are respectively arranged on the microphone, and one end of pin one and pin two are both arranged in the shell and respectively welded to the MIC+ pad and the MIC- pad of the circuit board.

[0013] Preferably, a partition is provided inside the shell, which divides the inside of the shell into two areas. The single body is in one of the areas, and a microphone step is provided in the other area. The microphone is bonded to the microphone step as a whole, and one end of its pin one and pin two are both provided in the shell and respectively soldered to the MIC+ pad and MIC- pad of the circuit board.

[0014] Preferably, the microphone is arranged outside the housing, and one end of the pin 1 and the pin 2 are arranged in the area adjacent to the cell wall and are respectively soldered to the MIC+ pad and the MIC- pad of the circuit board.

[0015] The present invention provides a miniature speaker with offline voice, which has the following beneficial effects compared with the prior art: This micro speaker with offline voice combines the speaker and microphone through a line. The voice is pre-burned into the chip in the line. The burned voice can be re-burned according to actual use. It can be awakened by receiving voice through the microphone and the result is fed back through the speaker. With the built-in and external microphone, the product can meet more usage needs and usage scenarios while meeting the requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a general monomer semi-finished product of the present invention; Figure 2 is a schematic diagram of the appearance of a universal monomer of the present invention; Figure 3This is an overall cross-sectional view of the external circular microphone of the present invention; Figure 4 This is an overall cross-sectional view of the external microphone product of the present invention; Figure 5 This is an overall cross-sectional view of the microphone built-in product of the present invention; Figure 6 This is a schematic diagram of the overall appearance of the external circular microphone of the present invention; Figure 7 This is a schematic diagram of a circuit board with an external circular microphone according to the present invention; Figure 8 It is a schematic diagram of a universal circuit board of the present invention.

[0017] In the figure: 1. monomer; 11. bracket; 111. diaphragm step; 112. magnetic gap; 113. pad one; 114. pad two; 115. notch; 12. magnetic pole piece; 13. voice coil; 131. lead one; 132. lead two; 14. diaphragm; 2. housing; 21. monomer step; 22. circuit board step; 3. circuit board; 31. pin one; 32. pin two; 33. pin three; 34. pin four; 4. lead three; 5. lead four; 6. microphone; 61. rubber cover; 62. pin one; 63. pin two; 7. partition; 8. cover. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 8 , the present invention provides four technical solutions: For example, see Figure 1-Figure 3 In an embodiment of the present invention, a miniature speaker with offline voice includes a monomer 1 and a housing 2, a circuit board 3 and a microphone 6. The monomer 1 is composed of a bracket 11 with a U-cup with a solder piece, a magnetic steel pole piece 12, a voice coil 13, and a diaphragm 14.

[0020] See also Figure 1-Figure 3In the embodiment of the present invention, a pad 113 and a pad 2 114 are bonded to the back of the bracket 11, one side of the magnetic pole piece 12 is bonded to the inside of the bracket 11, and the lead surface of the voice coil 13 is bonded to the middle position of the diaphragm 14. A magnetic gap 112 is formed between the inside of the bracket 11 and the outer edge of the magnetic pole piece 12. The other side of the voice coil 13 is arranged in the magnetic gap 112 inside the bracket 11. A diaphragm step 111 adapted to the diaphragm 14 is arranged on the inner side of the bracket 11, and the bonding surface of the diaphragm 14 is bonded to the diaphragm step 111 in the bracket 11. The pad 1 113 and the pad 2 114 are also welded with a lead 4 5 and a lead 3 4 respectively.

[0021] For further information, see Figure 1-Figure 3 In the embodiment of the present invention, the welding piece U cup is injection molded in one piece. When the bracket 11 is injection molded, the U cup is also injection molded on the bracket 11 to form an injection molded bracket 11.

[0022] For further information, see Figure 2-Figure 3 In the embodiment of the present invention, the lead surface of the voice coil 13 is provided with a lead 131 and a lead 2 132, and the bracket 11 is also provided with a notch 115 for leading out the lead 131 and the lead 2 132. The lead 131 and the lead 2 132 are led out from the notch 115 of the bracket 11 and are respectively welded to the pad 113 and the pad 2 114 on the back side of the bracket 11 through welding points.

[0023] For further information, see Figure 3 In the embodiment of the present invention, a monomer step 21 adapted to the monomer 1 is provided inside the shell 2, and the assembled monomer 1 is bonded as a whole to the monomer step 21 inside the shell 2 to ensure the firmness of the installation of the monomer 1.

[0024] For further information, see Figure 2-Figure 3 as well as Figure 7-Figure 8 In the embodiment of the present invention, pin one 31, pin two 32, pin three 33 and pin four 34 are riveted on the circuit board 3 respectively, the other end of lead three 4 is welded to the SP- pad on the circuit board 3, and the other end of lead four 5 is welded to the SP+ pad on the circuit board 3. A circuit board step 22 adapted to the circuit board 3 is also provided in the housing 2, and the circuit board 3 is bonded to the circuit board step 22.

[0025] It should be added that SP is an output device on the circuit board, which is used to convert electrical signals into sound.

[0026] For further information, see Figure 2-Figure 3 as well as Figure 7-Figure 8In the embodiment of the present invention, a cover plate 8 is further provided on the housing 2, and the cover plate 8 is bonded to the circuit board 3, and the circuit board 3 is sealed in the housing 2. Pin 1 31 and pin 4 34 are respectively connected to the negative pole and the positive pole of the power supply, and pin 2 32 and pin 3 33 are both connected to the control device. After the control is connected, voice dialogue can be realized as required.

[0027] The second embodiment is different from the first embodiment in that: The first type is an external microphone 6, in which the microphone 6 is soldered on a designed circuit board 3 by means of leads. The circuit board 3 is designed to reduce the layout space to match the housing 2 without affecting the use.

[0028] See also Figure 3 In the embodiment of the present invention, the microphone 6 is wrapped by a rubber sleeve 61, and the microphone 6 is arranged outside the housing 2. The microphone 6 is respectively provided with a pin 1 62 and a pin 2 63. One end of the pin 1 62 and the pin 2 63 are both arranged in the housing 2 and are respectively soldered to the MIC+ pad and the MIC- pad of the circuit board 3.

[0029] Embodiment 3 is different from Embodiment 1 in that: The second type of microphone 6 is an external model, which is welded to a designed circuit board by wire leads. The microphone is exposed outside the product along with the wire leads, and the welding direction is controllable. The external model uses the circuit board 3 directly as a cover 8.

[0030] See also Figure 4 In the embodiment of the present invention, the microphone 6 is arranged outside the housing 2, and one end of its pin 1 62 and pin 2 63 are both arranged in the area adjacent to the monomer 1 and are respectively soldered to the MIC+ pad and the MIC- pad of the circuit board 3.

[0031] It should be added that MIC is an input device on the circuit board, which is used to convert sound into electrical signals.

[0032] The fourth embodiment is different from the first embodiment in that: The microphone 6 is a built-in model, which is soldered to the designed circuit board 3 by means of pins. The microphone 6 is placed inside the housing 2. To ensure the soldering effect, the built-in model is provided with a cover plate 8.

[0033] See also Figure 5 In the embodiment of the present invention, a partition 7 is provided inside the shell 2, and the partition 7 divides the inside of the shell 2 into two areas. The single body 1 is in one of the areas, and a microphone step is provided in the other area. The microphone 6 is bonded to the microphone step as a whole, and one end of its pin 1 62 and pin 2 63 are both provided in the shell 2 and are respectively soldered to the MIC+ pad and the MIC- pad of the circuit board 3.

[0034] Among the above four solutions, it is necessary to add that: before assembly, the matching dimensions of the single speaker 1, microphone 6 and the upper and lower shells are calculated, and the opening dimensions of the upper and lower shells and the selection of the speaker and microphone 6 are determined before assembly work is carried out.

[0035] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A miniature speaker with offline voice, comprising a unit (1), a housing (2), a circuit board (3) and a microphone (6), characterized in that: The monomer (1) is composed of a bracket (11) with a U-cup with a welding piece, a magnetic steel pole piece (12), a voice coil (13), and a diaphragm (14); A soldering pad 1 (113) and a soldering pad 2 (114) are bonded to the back of the bracket (11); one side of the magnetic pole piece (12) is bonded to the inside of the bracket (11); a lead surface of the voice coil (13) is bonded to the middle position of the diaphragm (14); a magnetic gap (112) is formed between the inside of the bracket (11) and the outer edge of the magnetic pole piece (12); the other side of the voice coil (13) is arranged in the magnetic gap (112) inside the bracket (11); a diaphragm step (111) adapted to the diaphragm (14) is arranged on the inner side of the bracket (11); a bonding surface of the diaphragm (14) is bonded to the diaphragm step (111) inside the bracket (11); and a lead 4 (5) and a lead 3 (4) are welded to the soldering pad 1 (113) and the soldering pad 2 (114), respectively.

2. A miniature speaker with offline voice according to claim 1, characterized in that: The welding piece U cup is of an integral injection-molded type, and when the bracket (11) is injection-molded, the U cup is simultaneously injection-molded onto the bracket (11) to form an integral injection-molded bracket (11).

3. A miniature speaker with offline voice according to claim 1, characterized in that: The lead surface of the voice coil (13) is provided with a lead one (131) and a lead two (132), and the bracket (11) is also provided with a notch (115) for leading out the lead one (131) and the lead two (132). The lead one (131) and the lead two (132) are led out from the notch (115) of the bracket (11) and are respectively welded to a welding pad one (113) and a welding pad two (114) on the back side of the bracket (11) through welding points.

4. The miniature speaker with offline voice according to claim 1, characterized in that: A monomer step (21) adapted to the monomer (1) is provided inside the shell (2); the assembled monomer (1) is integrally bonded to the monomer step (21) inside the shell (2).

5. The miniature speaker with offline voice according to claim 1, characterized in that: Pin one (31), pin two (32), pin three (33) and pin four (34) are riveted onto the circuit board (3), respectively; the other end of lead three (4) is welded to an SP- pad on the circuit board (3); the other end of lead four (5) is welded to an SP+ pad on the circuit board (3); a circuit board step (22) adapted to the circuit board (3) is also provided in the housing (2); and the circuit board (3) is bonded to the circuit board step (22).

6. A miniature speaker with offline voice according to claim 5, characterized in that: The housing (2) is also provided with a cover plate (8), the cover plate (8) being bonded to the circuit board (3), and the circuit board (3) being sealed and arranged in the housing (2), pin one (31) and pin four (34) being connected to the negative electrode and the positive electrode of the power supply respectively, and pin two (32) and pin three (33) being connected to the control device, and after being connected to the control device, voice dialogue can be realized as required.

7. The miniature speaker with offline voice according to claim 1, characterized in that: The microphone (6) is wrapped by a rubber sleeve (61), and the microphone (6) is arranged outside the housing (2). The microphone (6) is provided with a pin 1 (62) and a pin 2 (63), respectively. One end of the pin 1 (62) and the pin 2 (63) are both arranged in the housing (2) and are respectively welded to a MIC+ soldering pad and a MIC- soldering pad of the circuit board (3).

8. The miniature speaker with offline voice according to claim 7, characterized in that: A partition (7) is arranged inside the housing (2), and the partition (7) divides the interior of the housing (2) into two areas. The unit (1) is located in one of the areas, and a microphone step is arranged in the other area. The microphone (6) is integrally bonded to the microphone step, and one end of the first pin (62) and the second pin (63) are arranged in the housing (2) and are respectively welded to the MIC+ pad and the MIC- pad of the circuit board (3).

9. The miniature speaker with offline voice according to claim 7, characterized in that: The microphone (6) is arranged outside the housing (2), and one end of the first pin (62) and the second pin (63) are arranged in the area adjacent to the monomer (1) and are respectively welded to the MIC+ pad and the MIC- pad of the circuit board (3).

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