A speaker and its detection system

Abstract

The present invention discloses a loudspeaker and a detection system thereof. The loudspeaker comprises a vibration mechanism, a magnetic circuit mechanism, a microphone assembly and a basin frame for fixing the vibration mechanism and the magnetic circuit mechanism. The vibration mechanism comprises a voice coil and a diaphragm. The magnetic circuit mechanism is arranged on one side of the vibration mechanism. The microphone assembly comprises a microphone, and the microphone is connected between the vibration mechanism and the magnetic circuit mechanism. Thus, the microphone is integrated with the loudspeaker body structure and the integrity of the loudspeaker structure is improved.

Description

Technical Field

[0001] The present invention relates to the field of electronic equipment, and in particular to a loudspeaker and a detection system thereof. Background Art

[0002] As a common electro-acoustic conversion device, the speaker is an indispensable accessory in portable electronic devices such as mobile phones and radios. In actual use, a microphone is often used to detect whether the speaker is in normal working condition, and the detection circuit in the speaker performs nonlinear control and protection on the audio signal output by the speaker, so that the speaker can adjust the output frequency response in time when the output sound signal is distorted, bringing a good listening experience to the user.

[0003] However, in existing speaker detection circuits, the microphone is usually separated from the speaker or installed at the headphone sound outlet. Although this installation method can collect the frequency response of the sound signal inside the speaker or the output of the headphone core, the accuracy is low. In addition, the overall structure of the speaker is complex and has poor integrity, and the structure needs to be improved. Summary of the invention

[0004] In view of this, an object of an embodiment of the present invention is to provide a loudspeaker and a detection system thereof, so as to improve the integrity of the loudspeaker structure and the accuracy of the frequency response detection of the sound signal output by the loudspeaker.

[0005] In a first aspect, an embodiment of the present invention provides a speaker, the speaker comprising:

[0006] A vibration mechanism, including a voice coil and a diaphragm;

[0007] A magnetic circuit mechanism, arranged on one side of the vibration mechanism, for providing a magnetic field for the voice coil, so that when current passes through the voice coil, the diaphragm is driven to vibrate and generate sound;

[0008] a microphone assembly, comprising a microphone, wherein the microphone is connected between the vibration mechanism and the magnetic circuit mechanism and is used to collect the sound generated by the diaphragm; and

[0009] The basin frame is configured to fix the vibration mechanism and the magnetic circuit mechanism.

[0010] Furthermore, the magnetic circuit mechanism comprises:

[0011] magnets; and

[0012] A magnetic bowl, connected to one side of the magnet, for accommodating and fixing the magnet;

[0013] The magnetic bowl is provided with a first mounting hole, the magnet is provided with a second mounting hole corresponding to the first mounting hole, and the microphone is arranged in a space formed by the first mounting hole and the second mounting hole.

[0014] Furthermore, the magnetic circuit mechanism further includes:

[0015] A top plate is connected to a side of the magnet opposite to the magnetic bowl.

[0016] Furthermore, the vibration mechanism further comprises:

[0017] The voice coil frame is used to connect the voice coil and the diaphragm.

[0018] Furthermore, the microphone assembly further comprises:

[0019] a support member, used to fix the microphone; and

[0020] The flexible circuit board is electrically connected to the microphone through the support member.

[0021] Furthermore, the speaker further comprises:

[0022] A circuit board is connected to one side of the basin frame; wherein the circuit board is a soldering pad, a flexible circuit board or a printed circuit board.

[0023] Furthermore, a receiving groove is provided on one side of the basin frame, and the receiving groove is used to fix the circuit board.

[0024] Furthermore, the speaker further comprises:

[0025] A mesh cloth connected to a side of the basin frame adjacent to the circuit board;

[0026] Wherein, a plurality of through holes are opened on one side of the basin frame, and the mesh covers the through holes and is fixedly connected to the basin frame.

[0027] Furthermore, the speaker further comprises:

[0028] A mesh cloth is arranged on the same side of the basin frame as the circuit board;

[0029] The shape of the mesh is adapted to the shape of one side of the basin frame, and is notched at a position corresponding to the receiving groove;

[0030] A plurality of through holes are formed on one side of the basin frame, and the mesh covers the through holes and is fixedly connected to the basin frame.

[0031] In a second aspect, an embodiment of the present invention provides a speaker detection system, the detection system comprising:

[0032] A loudspeaker as described above;

[0033] A detection unit, connected to the speaker and the microphone, configured to detect working parameters of the speaker and output a detection signal;

[0034] a signal processor connected to the detection unit, receiving the detection signal, and outputting an adjustment signal according to the detection signal; and

[0035] The output unit is connected to the signal processor and the speaker, receives the adjustment signal and outputs the adjustment signal to the speaker.

[0036] The technical solution of the embodiment of the present invention realizes the integration of the microphone and the speaker body structure by connecting the microphone between the vibration mechanism and the magnetic circuit mechanism, improves the integrity of the speaker structure, reduces the sound propagation distance between the microphone and the speaker, and improves the accuracy of the frequency response detection of the sound signal output by the speaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0038] Figure 1 is a structural schematic diagram of a speaker detection system according to an embodiment of the present invention;

[0039] Figure 2 is a signal comparison diagram of a speaker under distortion according to an embodiment of the present invention;

[0040] Figure 3 Schematic diagram of the overall structure of the loudspeaker according to the first embodiment of the present invention Figure 1 ;

[0041] Figure 4 Schematic diagram of the overall structure of the loudspeaker according to the first embodiment of the present invention Figure 2 ;

[0042] Figure 5 is an exploded view of the overall structure of the loudspeaker according to the first embodiment of the present invention;

[0043] Figure 6 is a cross-sectional view of the overall structure of the loudspeaker according to the first embodiment of the present invention;

[0044] Figure 7 It is a schematic diagram of the magnetic bowl structure of the first embodiment of the present invention;

[0045] Figure 8 is a schematic diagram of a basin frame structure according to a first embodiment of the present invention;

[0046] Fig. 9 Schematic diagram of the overall structure of the speaker of the second embodiment of the present invention Figure 1 ;

[0047] Fig.10 Schematic diagram of the overall structure of the speaker of the second embodiment of the present invention Figure 2 ;

[0048] Fig.11 is an exploded view of the overall structure of the loudspeaker according to the second embodiment of the present invention;

[0049] Fig.12 is a cross-sectional view of the overall structure of a loudspeaker according to Embodiment 2 of the present invention;

[0050] Fig.13 It is a schematic diagram of the bottom structure of the basin frame according to the second embodiment of the present invention.

[0051] In the figure, 100, speaker; 200, detection unit; 210, voltage detection unit; 220, current detection unit; 221, sampling resistor; 230, frequency response detection unit; 300, signal processor; 400, output unit; 410, output module; 420, variable gain amplifier; 430, power amplifier; 1, vibration mechanism; 11, diaphragm; 111, dome; 112, folding ring; 1121, connecting part; 12, voice coil; 13, voice coil frame; 14, front cover; 2, magnetic circuit mechanism; 21, magnetic bowl; 211. first mounting hole; 212. flat plate portion; 2121. mounting portion; 213. blocking portion; 2131. supporting portion; 22. magnet; 221. second mounting hole; 23. top plate; 231. third mounting hole; 3. basin frame; 31. fixing portion; 32. connecting hole; 33. accommodating groove; 34. block; 35. through hole; 36. mounting groove; 4. microphone assembly; 41. microphone; 42. supporting member; 43. flexible circuit board; 5. circuit board; 51. electrode; 6. connecting member; 61. air vent; 7. mesh cloth. DETAILED DESCRIPTION

[0052] The present invention is described below based on embodiments, but the present invention is not limited to these embodiments. In the detailed description of the present invention below, some specific details are described in detail. It is possible for a person skilled in the art to fully understand the present invention without the description of these details. In order to avoid confusing the essence of the present invention, known methods, processes, flows, components and circuits are not described in detail.

[0053] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0054] At the same time, it should be understood that in the following description, "circuit" refers to a conductive loop composed of at least one element or subcircuit through electrical connection or electromagnetic connection. When an element or circuit is said to be "connected to" another element or an element / circuit is said to be "connected between" two nodes, it can be directly coupled or connected to another element or there can be an intermediate element, and the connection between the elements can be physical, logical, or a combination thereof. On the contrary, when an element is said to be "directly coupled to" or "directly connected to" another element, it means that there is no intermediate element between the two.

[0055] Unless the context clearly requires otherwise, words such as “include”, “including” and the like in the specification should be interpreted as including rather than being exclusive or exhaustive; that is, as meaning “including but not limited to”.

[0056] In the description of the present invention, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0057] The detection circuit in the speaker is used to perform nonlinear control and protection on the audio signal output by the speaker, so that the speaker can adjust the output frequency response in time when the output sound signal is distorted, bringing a good listening experience to the user.

[0058] Embodiment 1

[0059] Figure 1 FIG. 1 is a schematic diagram of the structure of a speaker detection system according to an embodiment of the present invention. Figure 1As shown, the speaker detection system of this embodiment includes a speaker 100, a detection unit 200, a signal processor 300 and an output unit 400. A microphone 41 is provided in the speaker 100, and the microphone 41 is used to collect the sound signal played by the speaker 100 (including the frequency response of the speaker output). The detection unit 200, the signal processor 300 and the output unit 400 constitute the detection circuit of the speaker detection system of this embodiment. Among them, the detection unit 200 is connected to the speaker 100 and the microphone 41, and is used to detect the working parameters of the speaker 100 and output the detection signal. The signal processor 300 is connected to the detection unit 200, receives the detection signal, and outputs the adjustment signal according to the detection signal. The output unit 400 includes an output module 410, a variable gain amplifier 420 and a power amplifier 430. The output module 410 is connected to the signal processor 300 and the speaker 100, receives the adjustment signal, and outputs the output signal according to the adjustment signal. The variable gain amplifier 420 and the power amplifier 430 amplify the output signal, and the output sound signal is played by the speaker 100 in the form of a sound signal. Thus, by configuring the microphone 41 inside the main structure of the speaker 100, the integrity of the speaker structure is improved. By reducing the physical distance between the microphone 41 and the speaker 100, the sound propagation distance between the microphone 41 and the speaker 100 is reduced, the loss of the sound signal is reduced when the detection unit 200 collects the working parameters of the speaker 100, and the output signal of the speaker 100 is adjusted in time through the signal processor 400 and the output unit 400 when the sound signal output by the speaker 100 is distorted, thereby improving the accuracy of the sound signal output by the speaker 100, thereby improving the performance of the speaker 100 and making the use of the speaker 100 more convenient.

[0060] Figure 2 is a signal comparison diagram of the speaker under distortion in an embodiment of the present invention. Figure 2 As shown, the time domain response of the speaker when the input signal is a standard sine wave is used as an example to illustrate that when the sound signal output by the speaker is distorted, the sound signal output by the speaker (that is, the sound signal collected by the microphone) is different from the input signal, and the amplitude difference at the peak and trough in the time domain response curve is particularly obvious. The amplitude difference between the speaker output signal and the input signal is obtained. When the amplitude difference reaches a preset condition, the input signal amplitude of the speaker is increased through a signal processor, so that the sensitivity of the speaker output signal at the peak and trough is improved, and a time domain waveform diagram that is closer to or consistent with the input signal amplitude is achieved, thereby improving the accuracy of the speaker output signal.

[0061] In an optional implementation, Figure 1As shown, in order to comprehensively detect the working parameters of the speaker 100, the detection unit 200 includes a voltage detection unit 210, a current detection unit 220 and a frequency response detection unit 230. The voltage detection unit 210 is connected to the speaker 100 and is used to detect the voltage across the speaker 100. The current detection unit 220 is connected in parallel between the output unit 400 and the speaker 100 through a sampling resistor 221, and is used to detect the magnitude of the current passing through the speaker 100. The frequency response detection unit 230 is connected to the microphone 41, and is used to detect the frequency response of the sound signal played by the speaker 100. Therefore, the signal processor 300 collects the voltage across the speaker 100, the current passing through, and the frequency response data according to the voltage detection unit 210, the current detection unit 220 and the frequency response detection unit 230, and adjusts the output signal of the speaker 100 in real time, thereby improving the accuracy of the sound signal output by the speaker 100, improving the performance of the speaker 100, and making the use of the earphone more convenient.

[0062] In an optional implementation, the signal processor 300 may be a single chip microcomputer, a control chip, a digital signal processor or other components with signal processing functions. The voltage detection unit 210, the current detection unit 220 and the frequency response detection unit 230 may be sensors, detection circuits or chips.

[0063] Preferably, the detection circuit of this embodiment can be electrically connected to the speaker and the microphone through a pad, a flexible circuit board or a printed circuit board. The detection circuit can be arranged on a flexible circuit board or a printed circuit board, and connected to electrodes or terminals on the speaker and the microphone through leads on the flexible circuit board or the printed circuit board, so as to detect the working parameters of the speaker 100.

[0064] Figure 3-6 FIG. 1 is a schematic diagram of the overall structure of a loudspeaker according to Embodiment 1 of the present invention. Figure 3-6As shown, the speaker 100 includes a vibration mechanism 1, a magnetic circuit mechanism 2, a microphone assembly 4 and a basin frame 3. The vibration mechanism 1 is arranged in the middle and upper part of the basin frame 3. The magnetic circuit mechanism 2 is arranged in the middle and lower part of the basin frame 3, and is used to provide a magnetic field for the vibration mechanism 1, so that the vibration mechanism 1 vibrates and generates sound when powered. The microphone assembly 4 is configured in the magnetic circuit mechanism 2, and is used to collect the sound signal output by the speaker 100 when the speaker 100 is working. Therefore, by integrating the microphone 41 with the main structure of the speaker 100, the integrity of the structure of the speaker 100 is improved. At the same time, by connecting the speaker 100, the microphone 41 and the detection circuit, the voltage at both ends of the speaker 100, the current passing through, and the frequency response of the output sound signal are detected in real time, and the sound signal output by the speaker 100 is adjusted in time according to the above-mentioned working parameters detected (that is, the voltage at both ends of the speaker 100, the current passing through, and the frequency response of the output sound signal), so as to improve the accuracy of the sound signal output by the speaker 100 and improve the performance of the speaker 100.

[0065] Combination Figure 3-6 The vibration mechanism 1 includes a diaphragm 11 and a voice coil 12. The diaphragm 11 is fixedly connected to the basin frame 3. The voice coil 12 is arranged inside the basin frame 3 and connected to the diaphragm 11. Thus, the assembly of the vibration mechanism 1 is realized, the structure is compact, the number of components is small, and the assembly method is simple.

[0066] The diaphragm 11 plays an important role in the sound performance of the speaker 100. The shape of the diaphragm 11 matches the voice coil 12 and other structures of the speaker 100. The diaphragm 11 in this embodiment adopts a flat diaphragm 11. The outline of the diaphragm 11 is rectangular, including a dome 111 and a folding ring 112. The dome 111 is a rectangular structure arranged inside the diaphragm 11, the voice coil 12 is a hollow rectangular structure, connected to the bottom of the dome 111, and the folding ring 112 is connected to the periphery of the dome 111. Therefore, by arranging the diaphragm 11 in a regular shape, the production and installation of the diaphragm 11 are more convenient.

[0067] In an optional implementation, the material of the diaphragm 11 can be paper, wood, plastic, metal or biomass diaphragm 11. The width, number, bending direction, bending angle and bending depth of the folding ring 112 can be selected according to actual needs. Thus, the vibration effect of the diaphragm 11 is improved by the folding ring 112 of different structures, thereby improving the sound clarity output by the speaker 100 under different frequency signals and improving the performance of the speaker 100.

[0068] Preferably, the diaphragm 11 in this embodiment is a plastic diaphragm, which is made of a polymer compound, has high plasticity, is easy to process, and has low cost. By using a plastic diaphragm, not only can the speaker 100 be manufactured easily, but also the production cost is low, which is convenient for large-scale production of the speaker 100.

[0069] In an optional implementation, the vibration mechanism 1 further includes a front cover 14. The front cover 14 is located on one side of the diaphragm 11 and is in a hollow rectangular shape. The outer edge of the folding ring 112 extends outward to form a connecting portion 1121, and the front cover 14 is fixed on the connecting portion 1121 on all sides, and the folding ring 112 passes through the hollow structure of the front cover 14 to be exposed. When the speaker 100 is working, the front cover 14 reflects and diffracts the sound waves generated by the vibration of the diaphragm 11, and adjusts the frequency response of the speaker 100 from a structural perspective.

[0070] like Figure 5 and Figure 6 As shown, the magnetic circuit mechanism 2 includes a magnet 22, a top plate 23 fixed to both ends of the magnet 22, and a magnetic bowl 21 for accommodating the magnet 22 and the top plate 23. The magnet 22 is a rectangular block structure, and the magnetic bowl 21 is connected to the basin frame 3. The top plate 23 is connected to the top of the magnet 22 and has a magnetic conductivity. The magnet 22, the top plate 23 and the magnetic bowl 21 form a magnetic circuit, and the voice coil 13 is arranged in the magnetic circuit. When the voice coil 13 is energized and current passes through it, the voice coil 13 is subjected to force in the magnetic field and vibrates up and down, thereby driving the diaphragm 11 to vibrate and propagate sound waves.

[0071] Preferably, the cross-sectional area of ​​the top sheet 23 of this embodiment is the same as that of the magnet, the top sheet 23 is in a rectangular structure, the bottom of the top sheet 23 is attached to the top of the magnet 22, and the top of the top sheet 23 is flush with the top of the basin frame 3. Thus, the selection and installation of the top sheet 23 are facilitated, and the vibration amplitude of the diaphragm 11 is increased by the top sheet 23, thereby improving the performance of the speaker 100.

[0072] Figure 7 Schematic diagram of the magnetic bowl structure of an embodiment of the present invention. Figure 7 As shown, the magnetic bowl 21 includes a flat plate portion 212 and a plurality of blocking portions 213 connected to the sides of the flat plate portion 212 , and the area formed between the blocking portions 213 is configured as a supporting portion 2131 , and the magnetic bowl 21 is placed in the supporting portion 2131 to achieve fixation of the magnet in the magnetic bowl 21 .

[0073] Preferably, the flat plate portion 212 is configured as a rectangular structure, which cooperates with the magnet structure. The blocking portion 213 is configured in a shape of a long strip perpendicular to the plane where the flat plate portion 212 is located. The number of blocking portions 213 is set to four, and the four blocking portions 213 are respectively located on the four sides of the flat plate portion 212. Thus, the arrangement of the magnetic bowl 21 is convenient.

[0074] like Figure 5As shown, a first mounting hole 211 is provided on the flat plate portion 212, a second mounting hole 221 is provided on the magnet at a position corresponding to the first mounting hole 211, and a third mounting hole 231 is provided on the top plate 23. The third mounting hole 231 is arranged in the same manner as the first mounting hole 211 and the second mounting hole 221. The area formed by the first mounting hole 211, the second mounting hole 221 and the third mounting hole 231 is used to fix the microphone assembly 4. Thus, the microphone assembly 4 is arranged inside the magnetic circuit mechanism 2, so as to realize the integration of the microphone assembly 4 with the main structure of the speaker 100 and enhance the integrity of the structure of the speaker 100.

[0075] Specifically, the first mounting hole 211, the second mounting hole 22 and the third mounting hole 231 are through-hole structures, and the cross-section of the through-hole structure can be rectangular, square, circular or other shapes that can accommodate the microphone assembly 4. The size of the through-hole is adapted to the structural size of the microphone 41. Thus, without changing the original microphone structure, the microphone 41 is integrated into the main structure of the speaker 100, thereby enhancing the integrity of the speaker 100. At the same time, since the position of the microphone 41 is opposite to the center of the diaphragm 11, the distance between the microphone 41 and the diaphragm 11 is reduced, which facilitates the microphone 41 to quickly and accurately collect the sound signal output by the speaker 100, thereby improving the accuracy of the detection of the output frequency response of the speaker 100. Furthermore, the position of the microphone 41 can be adjusted in the space formed by the first mounting hole 211, the second mounting hole 221 and the third mounting hole 231 as needed, further facilitating the setting of the microphone 41 and the collection of the output sound signal of the speaker 100.

[0076] Figure 8 Schematic diagram of the basin frame structure of an embodiment of the present invention. Figure 8 As shown, the basin frame 3 is a hollow rectangular structure, and the hollow structure is used to fix the magnetic bowl 21. Circuit boards 5 are arranged on both sides of the basin frame 3. A mounting groove 36 is provided on the side of the bottom of the basin frame 3 adjacent to the side where the circuit board 5 is located, and a mounting portion 2121 is protrudingly provided on the side of the flat plate portion 212 opposite to the mounting groove 36. When in use, the mounting portion 2121 is connected to the mounting groove 36 to fix the magnetic bowl 21 and the basin frame 3, thereby realizing the assembly of the overall structure of the speaker 100, and the installation method is simple and the operation is more convenient.

[0077] Preferably, the circuit board 5 in this embodiment is configured as an elastic pad. The detection circuit is arranged on a flexible circuit board or a printed circuit board. When in use, the flexible circuit board or printed circuit board where the detection circuit is located is electrically connected to the elastic pad, and the detection circuit system of the speaker 100 is established to perform real-time detection of the working parameters of the speaker 100, and timely adjust the output signal of the speaker 100 through the detected feedback working parameter data, so as to improve the accuracy of the sound signal output by the speaker 100 and the use performance of the speaker 100.

[0078] Combination Figure 5 and Figure 6 , the microphone assembly 4 includes a microphone 41, a support member 42 and a flexible circuit board 43 which are arranged in sequence from top to bottom. The microphone 41 is fixed on the top of the support member 42, and the support member 42 passes through the first mounting hole 211, the second mounting hole 221 and the third mounting hole 231 in sequence and is connected to the magnetic bowl 21, the magnet and the top sheet 23. The flexible circuit board 43 includes a first end and a second end. The first end passes through the support member 42 and is electrically connected to the microphone 41. The second end is connected to the frequency response detection unit 230, and the microphone 41 is connected to the detection circuit through the frequency response detection unit 230. During installation, the microphone assembly 4 passes through the first mounting hole 211, the second mounting hole 221 and the third mounting hole 231 in sequence, and the two sides of the microphone 41 are in contact with the magnet and the top sheet 23, and the two sides of the support member 42 are in contact with the magnetic bowl 21 and the magnet. In this way, the microphone 41 is integrated with the main structure of the speaker 100, and the integrity of the speaker 100 is improved.

[0079] The technical solution of the embodiment of the present invention is to fix the microphone 41 in the space formed by the first mounting hole 211, the second mounting hole 221 and the third mounting hole 231, so that the microphone 41 is connected between the vibration mechanism 1 and the magnetic circuit mechanism 2, thereby realizing the integration of the microphone 41 and the main mechanism of the speaker 100, thereby reducing the overall volume of the speaker 100 and simplifying the installation process of the speaker 100. At the same time, the speaker 100 is connected to the voltage detection unit 210 and the current detection unit 220 through the circuit board 5, and the microphone 41 is connected to the frequency response detection unit 230 through the flexible circuit board 43, so that the detection circuit can detect the voltage at both ends of the speaker 100, the current passing through, and the frequency response of the output in real time, and the signal processor 300 timely adjusts the working state of the speaker 100 according to the detected working parameters, thereby adjusting the accuracy of the sound signal output by the speaker 100, and improving the performance of the speaker 100.

[0080] Embodiment 2

[0081] The power amplifier detection system of this embodiment includes a speaker and a detection circuit, wherein the detection circuit is the same as that in the first embodiment and will not be described in detail here.

[0082] Figure 9-12 FIG. 1 is a schematic diagram of the overall structure of a loudspeaker according to Embodiment 2 of the present invention. Figure 9-12As shown, the speaker 100 of the embodiment of the present invention includes a vibration mechanism 1, a magnetic circuit mechanism 2, a basin frame 3 and a microphone assembly 4. The magnetic circuit mechanism 2 is arranged on one side of the vibration mechanism 1, and is used to provide a magnetic field for the vibration mechanism 1, so that the vibration mechanism 1 vibrates and generates sound when powered. The microphone assembly 4 includes a microphone 41. The microphone 41 is connected between the vibration mechanism 1 and the magnetic circuit mechanism 2, and is used to collect the sound generated by the vibration mechanism 1. The basin frame 3 is configured to fix the vibration mechanism 1 and the magnetic circuit mechanism 2. Therefore, by connecting the microphone 41 between the vibration mechanism 1 and the magnetic circuit mechanism 2, the integration of the microphone 41 and the main structure of the speaker 100 is achieved, thereby improving the integrity of the structure of the speaker 100.

[0083] like Fig.11 As shown, the basin frame 3 in this embodiment is a basin-shaped structure, wherein the top edge of the basin-shaped structure is formed with a plurality of stepped fixing portions 31 inwardly. The vibration mechanism 1 is arranged in the middle and upper part of the basin frame 3 and connected to the fixing portion 31. The magnetic circuit mechanism 2 is arranged in the middle and lower part of the basin frame 3 and is fixedly connected to the inside of the basin frame 3.

[0084] Combination Figure 9-12 The vibration mechanism 1 of the loudspeaker 100 of this embodiment includes a diaphragm 11, a voice coil 12 and a voice coil frame 13. The voice coil frame 13 is fixedly connected to the bottom of the diaphragm 11, and the voice coil 12 is connected to the diaphragm 11 through the voice coil frame 13, thereby realizing the assembly of the vibration mechanism 1, with a compact structure, a small number of components, and a simple assembly method.

[0085] In an optional implementation, the diaphragm 11 of this embodiment may be a flat diaphragm, and the configuration of the diaphragm 11 is the same as that of the diaphragm 11 of the first embodiment.

[0086] In another optional implementation, such as Fig. 9 , Fig.11 and Fig.12 As shown, the diaphragm 11 in this embodiment is in a circular structure as a whole, including a dome 111 and a fold 112. The dome 111 is located at the center of the circular structure, and the bottom cross section of the dome 111 is circular. The fold 112 is bent upward from the periphery of the bottom of the dome 111 until it is connected to the outer edge of the diaphragm 11. Therefore, while satisfying the sound performance of the speaker 100, it is convenient to design and manufacture the diaphragm 11.

[0087] like Fig.11 and Fig.12 As shown, the voice coil 12 and the voice coil frame 13 are in a circular ring shape, and the top of the voice coil frame 13 is connected to the bottom of the dome 111. The voice coil 12 is arranged on the outside of the voice coil frame 13 and is fixedly connected to the voice coil frame 13.

[0088] In an optional implementation, the inner side of the voice coil 12 may be completely connected to the voice coil frame 13, or may be partially connected to the voice coil frame 13. Thus, while connecting the voice coil 12 and the voice coil frame 13, the contact area between the voice coil 12 and the voice coil frame 13 is adjusted according to actual needs, so that the connection method between the voice coil 12 and the voice coil frame 13 is more flexible.

[0089] It should be noted that the voice coil 12 of this embodiment may be connected to the diaphragm 11 through the voice coil skeleton 13 mentioned above, and may also be connected to the diaphragm 11 through the bottom of the dome 111 .

[0090] Combination Fig.11 and Fig.12 , the magnetic circuit mechanism 2 includes a magnetic bowl 21 and a magnet 22 placed on the top of the magnetic bowl 21, and the magnet 22 and the magnetic bowl 21 are configured in a disc shape. The magnetic bowl 21 is placed in the basin frame 3 to accommodate and fix the magnet 22, and a gap is formed between the outer side of the magnetic bowl 21 and the inner side of the basin frame 3, and the width of the gap is used to accommodate the voice coil skeleton 13 and the voice coil 12. A connecting hole 32 is provided at the bottom of the basin frame 3, and the magnetic bowl 21 is placed in the connecting hole 32, and the outer side of the magnetic bowl 21 is fixedly connected to the inner wall of the connecting hole 32, and the top of the magnetic bowl 21 is flush with the top edge of the connecting hole 32. A first mounting hole 211 is provided on the magnetic bowl 21, and a second mounting hole 221 is provided on the magnet 22 at a position corresponding to the first mounting hole 211, and the microphone 41 is arranged in the space formed by the first mounting hole 211 and the second mounting hole 221. Among them, the setting method of the first mounting hole 211 and the second mounting hole 221 is the same as that of the first embodiment, and will not be repeated here. When current flows through the voice coil 12, the voice coil 12 moves under the action of the magnetic field and drives the voice coil frame 13 and the diaphragm 11 to vibrate, thereby realizing the sound generation of the speaker 100. At the same time, the microphone 41 collects the sound signal output by the speaker 100 and uses it as the input signal of the frequency response detection unit 230 (that is, the output signal of the speaker 100 detected by the frequency response detection unit 230).

[0091] Combination Fig.11 and Fig.12 The magnetic circuit mechanism 2 also includes a top sheet 23. The top sheet 23 is connected to the top of the magnet 22, has a magnetic conductivity, and is used to increase the vibration amplitude of the diaphragm 11 and improve the performance of the speaker 100. A third mounting hole 231 is provided on the top sheet 23, and the position of the third mounting hole 231 corresponds to the first mounting hole 211 and the second mounting hole 221. During installation, the microphone assembly 4 passes through the first mounting hole 211, the second mounting hole 221 and the third mounting hole 231 in sequence, and is fixedly connected to the magnetic circuit mechanism 2. As a result, the installation space of the microphone assembly 4 is expanded by the third mounting hole 231, making the installation of the microphone assembly 4 more convenient.

[0092] Preferably, the cross-sectional area of ​​the top sheet 23 of this embodiment is the same as that of the magnet, so as to facilitate the selection and installation of the top sheet 23 .

[0093] Combination Fig.11 and Fig.12 The microphone assembly 4 of this embodiment includes a microphone 41, a support member 42 and a flexible circuit board 43. The microphone 41 is fixed on the top of the support member 42, and the support member 42 passes through the first mounting hole 211, the second mounting hole 221 and the third mounting hole 231 in sequence and is connected to the magnetic bowl 21, the magnet and the top sheet 23. The flexible circuit board 43 includes a first end and a second end, and the first end passes through the support member 42 and is electrically connected to the microphone 41. The second end is connected to the frequency response detection unit 230, and the microphone 41 is connected to the detection circuit through the frequency response detection unit 230.

[0094] Fig.13 Schematic diagram of the bottom structure of the basin frame according to the second embodiment of the present invention. Fig.10 and Fig.13 The bottom of the basin frame 3 is provided with a receiving groove 33, and a circuit board 5 is fixed in the receiving groove 33. The circuit board 5 is provided with an electrode 51, and the electrode 51 is used to realize the connection between the speaker 100 and the voltage detection unit 210 and the current detection unit 220 in the detection circuit.

[0095] In an optional implementation, the circuit board 5 can be a pad, a flexible circuit board, a printed circuit board or other components with a conductive function. The receiving groove 33 can be provided in a manner of protruding from the bottom surface of the basin frame 3 (i.e., the bottom of the receiving groove 33 is flush with the bottom plane of the basin frame 3), or can be provided by directly slotting the bottom of the basin frame 3 (i.e., the notch of the receiving groove 33 is flush with the bottom surface of the basin frame 3).

[0096] Preferably, the circuit board 5 in this embodiment is configured as a solder pad, and the receiving groove 33 is configured in a manner of protruding from the bottom surface of the basin frame 3. Specifically, two clamping blocks 34 are protruding from the bottom of the basin frame 3, and the area between the clamping blocks 34 forms the receiving groove 33, the bottom of the receiving groove 33 is flush with the bottom plane of the basin frame 3, and the circuit board 5 is fixed in the receiving groove 33.

[0097] In an optional implementation, Fig.11 and Fig.12 As shown, the speaker 100 in the embodiment of the present invention further includes a mesh 7 and a connector 6. The mesh 7 is connected to the side of the basin frame 3 adjacent to the circuit board 5 through the connector 6, and a plurality of through holes 35 are provided on the side where the basin frame 3 is connected to the mesh 7. Air holes 61 are provided at positions on the connector 6 corresponding to the through holes 35. The mesh 7 covers the air holes 61 and is fixedly connected to the basin frame 3.

[0098] In another optional implementation, the mesh 7 and the connecting member 6 are arranged on the same side of the basin frame 3 as the circuit board 5. A plurality of through holes 35 are evenly arranged at the bottom of the basin frame 3 adjacent to the receiving groove 33, and the mesh 7 and the connecting member 6 are in a circular ring structure with a notch, and the position where the notch is located is used to arrange the receiving groove 33. The mesh 7 covers the through holes 35 and is fixedly connected to the basin frame 3 through the connecting member 6.

[0099] Preferably, combined Fig.11 and Fig.12 In this embodiment, the mesh 7 and the connecting member 6 are arranged on the same side of the basin frame 3 as the circuit board 5. The mesh 7 is made of a woven fabric with a breathable function, and the connecting member 6 can be made of a connecting glue or glue, thereby achieving a fixed connection between the mesh 7 and the basin frame 3. When in use, the amount of air entering the speaker 100 is adjusted through the mesh 7, thereby adjusting the sound performance of the speaker 100.

[0100] The technical solution of the embodiment of the present invention is to fix the microphone 41 in the space formed by the first mounting hole 211, the second mounting hole 221 and the third mounting hole 231, so that the microphone 41 is connected between the vibration mechanism 1 and the magnetic circuit mechanism 2, thereby realizing the integration of the microphone 41 and the main mechanism of the speaker 100, thereby reducing the overall volume of the speaker 100 and simplifying the installation process of the speaker 100. At the same time, the speaker 100 is connected to the voltage detection unit 210 and the current detection unit 220 through the circuit board 5, and the microphone 41 is connected to the frequency response detection unit 230 through the flexible circuit board 43, so that the detection circuit can detect the voltage at both ends of the speaker 100, the current passing through, and the frequency response of the output in real time, and the signal processor 300 timely adjusts the working state of the speaker 100 according to the detected working parameters, thereby adjusting the accuracy of the sound signal output by the speaker 100, and improving the performance of the speaker 100.

[0101] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A loudspeaker, characterized in that: The speaker comprises: A vibration mechanism (1) comprising a voice coil (12) and a diaphragm (11); A magnetic circuit mechanism (2) is arranged on one side of the vibration mechanism (1) and is used to provide a magnetic field for the voice coil (12), so that when current passes through the voice coil (12), the diaphragm (11) is driven to vibrate and generate sound; A microphone assembly (4), comprising a microphone (41), wherein the microphone (41) is connected between the vibration mechanism (1) and the magnetic circuit mechanism (2) and is used to collect sound generated by the vibration membrane (11); and A basin frame (3) configured to fix the vibration mechanism (1) and the magnetic circuit mechanism (2); The microphone assembly (4) further comprises: a support member (42) for fixing the microphone (41); and a flexible circuit board (43), wherein the flexible circuit board (43) is electrically connected to the microphone (41) via the support member (42), and the microphone (41), the support member (42) and the flexible circuit board (43) are arranged in sequence from top to bottom; The loudspeaker further comprises: a circuit board (5) connected to one side of the basin frame (3); wherein the circuit board (5) is a solder pad, a flexible circuit board or a printed circuit board; A mounting groove (34) or a receiving groove (33) is provided on one side of the basin frame (3), and the mounting groove (34) or the receiving groove (33) is used to fix the circuit board (5); The speaker further comprises: a mesh (7) and a connecting piece (6); The mesh cloth (7) is connected to a side of the basin frame (3) adjacent to the circuit board (5) through the connecting member (6), and a plurality of through holes (35) are provided on one side of the basin frame (3), and air holes (61) are provided at positions on the connecting member (6) corresponding to the through holes (35), and the mesh cloth (7) covers the air holes (61) and is fixedly connected to the basin frame (3); or The mesh cloth (7) and the connecting piece (6) are arranged on the same side of the basin frame (3) as the circuit board (5); the shape of the mesh cloth (7) is adapted to the shape of one side of the basin frame (3) and is notched at a position corresponding to the accommodating groove (33); a plurality of through holes (35) are provided on one side of the basin frame (3); the mesh cloth (7) covers the through holes (35) and is fixedly connected to the basin frame (3) via the connecting piece (6).

2. The loudspeaker according to claim 1, characterized in that The magnetic circuit mechanism (2) comprises: a magnet (22); and A magnetic bowl (21), connected to one side of the magnet (22), and used to accommodate and fix the magnet (22); The magnetic bowl (21) is provided with a first mounting hole (211), the magnet (22) is provided with a second mounting hole (221) corresponding to the first mounting hole (211), and the microphone (41) is arranged in a space formed by the first mounting hole (211) and the second mounting hole (221).

3. The loudspeaker according to claim 2, characterized in that The magnetic circuit mechanism (2) further comprises: A top plate (23) is connected to a side of the magnet (22) opposite to the magnetic bowl (21).

4. The loudspeaker according to claim 1, characterized in that The vibration mechanism (1) further comprises: A voice coil frame (13) is used to connect the voice coil (12) and the diaphragm (11).

5. A speaker detection system, characterized in that: The detection system comprises: The loudspeaker according to any one of claims 1 to 4; A detection unit (200), connected to the speaker and the microphone (41), used to detect working parameters of the speaker and output a detection signal; a signal processor (300), connected to the detection unit (200), receiving the detection signal, and outputting an adjustment signal according to the detection signal; and The output unit (400) is connected to the signal processor (300) and the speaker, receives the adjustment signal and outputs the adjustment signal to the speaker.

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