Intelligent electronic horn

Abstract

The intelligent electronic horn comprises an upper sound core, a lower sound core, a coil holder, a coil, a sound film and an echo board, the coil is wound on the coil holder, the coil holder is connected to the lower sound core, the upper sound core can be movably arranged along a first direction relative to the lower sound core, and the echo board is fixedly connected to the upper sound core. The sound film part is connected to the upper sound core so as to move along the first direction relative to the lower sound core together with the upper sound core; the edge of the outer side of the echo plate is bent to form a bent part. According to the technical scheme, the outer side edge of the echo plate is bent to form the bent part, so that the mechanical strength of the echo plate can be enhanced, the echo plate is prevented from generating additional vibration frequency when the horn sounds, noise of the intelligent electronic horn is eliminated, the sound emitted by the intelligent electronic horn is very melodious, the sound production quality is better, and the sound quality of the intelligent electronic horn is improved. And moreover, the thickness of the echo board is relatively thin, so that materials are saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to an intelligent electronic horn. BACKGROUND

[0002] The horn is the sound signal device of the automobile. In the driving process of the automobile, the driver sends the necessary sound signal according to the need and the regulation, warns the pedestrians and causes the attention of other vehicles, ensures the traffic safety, and is also used for urging and signal transmission. The intelligent electronic horn of the automobile is to send the sound by the vibration of the metal diaphragm. However, the noise is often generated in the use of an existing horn, which causes the sound sent by the horn not to be pleasant and the sound quality to be poor. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the purpose of the present application is to provide an intelligent electronic horn with good sound quality.

[0004] In order to achieve the above purpose, the present application provides an intelligent electronic horn, which comprises an upper sound core, a lower sound core, a wire frame and a coil, a sound film and a echo plate. The coil is wound on the wire frame, the wire frame is connected to the lower sound core, the upper sound core is movably arranged along a first direction relative to the lower sound core, the echo plate is fixedly connected to the upper sound core, and the sound film is partially connected to the upper sound core to move together with the upper sound core along the first direction relative to the lower sound core. The outer side edge of the echo plate is bent to form a bending part.

[0005] Optionally, the upper sound core and the lower sound core are coaxially arranged, the wire frame comprises a main body and a mounting part, the main body is sleeved on the outer side of the lower sound core, the coil is wound on the outer side of the main body, the upper sound core is movably sleeved in the main body, and the echo plate is arranged on the side of the sound film away from the lower sound core. The intelligent electronic horn further comprises a shell, the shell is fixedly connected to the lower sound core, the outer periphery of the sound film is fixedly connected to the shell, one end of the shell forms an end cover, part of the lower sound core passes through the end cover and extends out of the shell, the other end of the shell forms an opening, the sound film is arranged at the opening to close the opening, part of the upper sound core passes through the sound film and extends out of the shell, part of the upper sound core, part of the lower sound core, the coil and the wire frame are accommodated in the shell. The intelligent electronic horn further comprises a circuit board mounting bracket and a circuit board mounted on the wire frame, the circuit board mounting bracket is connected to the shell, the circuit board is mounted on the circuit board mounting bracket, and a control circuit is arranged on the circuit board.

[0006] Optionally, the bending part of the echo plate is bent towards the side of the sound film.

[0007] Optionally, a protruding portion is further formed between the center of the sound board and the bending portion. Optionally, the sound board is circular, and the sound board further comprises a flat portion and a middle portion, the flat portion is located between the protruding portion and the bending portion in the radial direction of the sound board, and the middle portion is located at the center of the sound board and is flat.

[0008] Optionally, the sound board is circular, and the ratio of the width of the bending portion of the sound board in the radial direction of the sound board to the radius of the sound board is 1:34~5:34.

[0009] Optionally, the sound board is made by integral molding.

[0010] Optionally, the smart electronic horn further comprises a control circuit, the control circuit comprises a working circuit, the working circuit comprises an audio oscillation circuit, the audio oscillation circuit comprises a volume detection element and an audio oscillation chip, the volume detection element is connected to the audio oscillation chip, the volume detection element is used to obtain the sound of the vibration of the sound film, convert it into a first electric signal, and transmit the first electric signal to the audio oscillation chip, and the audio oscillation chip adjusts the oscillation frequency according to the first electric signal.

[0011] Optionally, the audio oscillation circuit further comprises a thermistor, the thermistor is connected to the audio oscillation chip, the thermistor is used to change the resistance value according to the temperature, convert the change of the resistance value into a second electric signal, and transmit the second electric signal to the audio oscillation chip, and the audio oscillation chip adjusts the oscillation frequency according to the second electric signal.

[0012] Optionally, the control circuit further comprises a unidirectional polarity circuit, a first pole and a second pole; the unidirectional polarity circuit comprises a first diode, a second diode, a third diode, a fourth diode, a first input end and a second input end; the anode of the first diode and the cathode of the second diode are connected to the first input end, the cathode of the third diode and the anode of the fourth diode are connected to the second input end, the cathode of the first diode and the cathode of the fourth diode are connected to the first pole, and the anode of the second diode and the anode of the third diode are connected to the second pole; the first input end and the second input end are used to be connected to an external power supply.

[0013] Optionally, the working circuit comprises a micro-current switching circuit, a time control circuit and a power amplifier circuit connected in sequence, and the unidirectional polarity circuit is connected to the micro-current switching circuit, the time control circuit, the audio oscillation circuit and the power amplifier circuit respectively.

[0014] From the above, the intelligent electronic loudspeaker of the present application can enhance the mechanical strength of the echo plate by bending the outer side edge of the echo plate to form a bending part, thereby avoiding additional vibration frequency of the echo plate when the loudspeaker is ringing, thus eliminating the noise of the intelligent electronic loudspeaker, making the sound emitted by the intelligent electronic loudspeaker very pleasant, and the sound quality is better, and the thickness of the echo plate can be thinner, saving materials. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0016] Figure 1 The figure is a sectional structure diagram of the intelligent electronic loudspeaker of an embodiment of the present application.

[0017] Figure 2a The figure is a sectional structure diagram of the intelligent electronic loudspeaker of an embodiment of the present application. Figure 1 The figure is a top view of the echo plate of the intelligent electronic loudspeaker.

[0018] Figure 2b The figure is a sectional structure diagram of the echo plate shown in Figure 2.

[0019] Figure 3a The figure is a sectional structure diagram of the intelligent electronic loudspeaker of an embodiment of the present application. Figure 1 The figure is a top view of the compression ring of the intelligent electronic loudspeaker.

[0020] Figure 3b The figure is a sectional structure diagram of the intelligent electronic loudspeaker of an embodiment of the present application. Figure 3a The figure is a sectional structure diagram of the intelligent electronic loudspeaker of an embodiment of the present application.

[0021] Figure 4 The figure is a sectional structure diagram of the intelligent electronic loudspeaker of an embodiment of the present application. Figure 1 The figure is a control circuit structure diagram of the intelligent electronic loudspeaker.

[0022] Figure 5 The figure is a control circuit structure diagram of the intelligent electronic loudspeaker. Figure 1 The figure is a control circuit structure diagram of the intelligent electronic loudspeaker. DETAILED DESCRIPTION

[0023] The specific embodiments of the present application will be described in detail below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the description of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] In the description of the present application, unless otherwise explicitly specified and limited, the terms "set", "install", "connect" and the like should be understood in a broad sense, for example, can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] The terms "first", "second", "third" and the like are only used to distinguish similar attributes or elements, and do not indicate or imply relative importance or a specific order.

[0026] The terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, in addition to including the listed elements, other elements not explicitly listed can also be included.

[0027] When the existing loudspeaker is ringing, the sound film will produce an inherent vibration frequency, and the vibration frequency generated by the sound film will emit sound after the echo plate. However, there is noise when the loudspeaker rings, and the sound quality is poor. The designer of the present application found that the existing loudspeaker produces noise because the mechanical strength of the echo plate is poor, and the vibration frequency generated by the sound film will produce an additional vibration frequency of the echo plate, and the two vibration frequencies together will cause the generation of noise.

[0028] Please refer to Figure 1 The smart electronic loudspeaker of an embodiment of the present application includes an upper sound core 31, a lower sound core 33, a wire frame 35 and a coil DL, a sound film 37 and an echo plate 39. The coil DL is wound on the wire frame 35, and the wire frame 35 is connected to the lower sound core 33. The upper sound core 31 is movably arranged in the first direction relative to the lower sound core 33. The echo plate 39 is fixedly connected to the upper sound core 31, and the sound film 37 is partially connected to the upper sound core 31 to move together with the lower sound core 33 relative to the upper sound core 31 in the first direction. Wherein, the outer side edge of the echo plate 39 is bent to form a bending part 391. When the loudspeaker rings, the sound film produces an inherent frequency, and emits sound after the echo plate. If the mechanical strength of the echo plate is not large, an additional vibration frequency will be generated, and the two frequencies together will make the sound quality of the loudspeaker when ringing bad, with noise. The solution is to bend the outer periphery of the echo plate to increase the mechanical strength, which can completely eliminate the additional vibration frequency generated when the loudspeaker rings, and the sound quality can reach a perfect state.

[0029] The smart electronic loudspeaker in the embodiment can enhance the mechanical strength of the echo plate by bending the outer side edge of the echo plate to form a bending part, thereby avoiding the generation of an additional vibration frequency of the echo plate when the loudspeaker rings, thus eliminating the noise of the smart electronic loudspeaker, making the sound emitted by the smart electronic loudspeaker very pleasant, and the sound quality is better. Also, the thickness of the echo plate can be thinner, saving materials.

[0030] In the embodiment, the upper voice coil 31 and the lower voice coil 33 are coaxially arranged, the bobbin 35 comprises a main body 351 and a mounting portion 353, the main body 351 is sleeved outside the lower voice coil 33, the coil DL is wound outside the main body 351, and the upper voice coil 31 is movably sleeved in the main body 351.

[0031] In the embodiment, the echo plate 39 is arranged at a side of the diaphragm 37 away from the lower voice coil 33. Specifically, an end of the upper voice coil 31 away from the lower voice coil 33 is provided with a neck portion 311 with a smaller diameter, and the mounting hole of the echo plate 39 is sleeved at the neck portion 311.

[0032] In the embodiment, the diaphragm 37 is a circular plate. Specifically, a cross section of the diaphragm 37 along a radial direction is wavy. The coil DL generates electromagnetic vibration under the action of the control circuit to pull the diaphragm 37 to vibrate and emit sound.

[0033] In the embodiment, please refer to Figure 1 , Figure 2a and Figure 2b together, the bending portion 391 of the echo plate 39 is bent towards the diaphragm 37.

[0034] In the embodiment, a convex portion 393 is further formed between the center of the echo plate 39 and the bending portion 391. Specifically, the echo plate 39 is circular, and correspondingly, the bending portion 391 and the convex portion 393 extend along the circumferential direction. Specifically, in the embodiment, the convex portion 393 is arched towards a direction opposite to the bending direction of the bending portion 391. It can be understood that the convex portion 393 can also be arched towards the same direction as the bending direction of the bending portion 391.

[0035] In the embodiment, the echo plate 39 further comprises a flat plate portion 394, which is located between the convex portion 393 and the bending portion 391 in the radial direction of the echo plate 39.

[0036] In the embodiment, the echo plate 39 further comprises a middle portion 395, which is located at the center of the echo plate 39, and the middle portion 395 can be flat. Specifically, the middle portion 395 of the echo plate 39 is fixedly connected to the upper voice coil 31, and one end of the outer edge (i.e. the bending portion 391) of the echo plate 39 is a free end.

[0037] In the embodiment, the ratio of the width of the bending portion 391 in the radial direction of the echo plate 39 to the radius of the echo plate 39 is 1:34~5:34, and preferably 1:34.

[0038] In the embodiment, the connection between the bending portion 391 and the flat plate portion 394 is a circular arc chamfer. Of course, the connection between the bending portion 391 and the flat plate portion 394 can also be an inverted bevel.

[0039] In the embodiment, the echo plate 39 can cover a large part of the sound film 37, so that the smart electronic horn does not need to be provided with a cover arranged above the sound film 37, which can save cost and reduce the size of the smart electronic horn.

[0040] In the embodiment, the echo plate 39 can be integrally formed. Specifically, in the embodiment, the echo plate 39 can be integrally formed by stamping, and the bending part 391 is formed at one time by stamping. In this way, the echo plate 39 can be formed at one time by stamping, without additional process, and the echo plate 39 is of a whole structure, which can further increase the strength of the echo plate 39. It can be understood that the bending part 391 can also be formed by bending the periphery after the echo plate 39 is formed.

[0041] In the embodiment, the smart electronic horn further comprises a shell 41, which is fixedly connected to the lower sound core 33. The outer periphery of the sound film 37 is fixedly connected to the shell 41, and the middle part of the sound film 37 is fixedly connected to the upper sound core 31. Specifically, please refer to Figure 1 , Figure 3a and Figure 3b , the outer periphery of the sound film 37 is fixedly connected to the shell 41 through the pressing ring 43. More specifically, the pressing ring 43 is wrapped around the outer periphery of the sound film 37 and the shell 41 and is riveted to realize fixation. The pressing ring 43 is in the shape of a circular ring.

[0042] Specifically, one end of the shell 41 forms an end cover 411, part of the lower sound core 33 extends out of the shell 41 through the end cover 411, the other end of the shell 41 forms an opening, the sound film 37 is arranged at the opening to close the opening, and part of the upper sound core 31 extends out of the shell 41 through the sound film 37. Part of the upper sound core 31, part of the lower sound core 33, the coil DL and the bobbin 35 are accommodated in the shell 41.

[0043] In the embodiment, the smart electronic horn further comprises a circuit board mounting bracket 45 and a circuit board 46, the circuit board mounting bracket 45 is connected to the shell 41, the circuit board 46 is mounted on the circuit board mounting bracket 45, and the circuit board 46 is provided with a control circuit. The circuit board mounting bracket 45 is mounted on the mounting part 353.

[0044] In the embodiment, the smart electronic horn further comprises a plug-in part 47 to connect the circuit board 46 to an external power supply. The plug-in part 47 is arranged outside the shell 31 and is electrically connected to the circuit board 46.

[0045] The smart electronic horn of the embodiment shown in Figure 1 is a basin-shaped horn.

[0046] The smart electronic horn of the embodiment further comprises the control circuit arranged on the circuit board 46 as described above, please refer to Figure 4 and Figure 5The control circuit comprises a working circuit (not shown in the figure), and the working circuit comprises an audio oscillation circuit 17, the audio oscillation circuit 17 comprising a volume detection element 171 and an audio oscillation chip IC, the volume detection element 171 being connected to the audio oscillation chip IC, the volume detection element 171 being used to obtain the sound of the vibration of the diaphragm, convert the sound into a first electric signal, and transmit the first electric signal to the audio oscillation chip IC, the audio oscillation chip IC adjusting the oscillation frequency according to the first electric signal. Specifically, the volume detection element can be a pickup microphone (MK).

[0047] In the embodiment, the control circuit further comprises a one-way polarity circuit 11, a first pole 101 and a second pole 102. The one-way polarity circuit 11 comprises a first diode D1, a second diode D2, a third diode D3, a fourth diode D4, a first input end A and a second input end B. The anode of the first diode D1 and the cathode of the second diode D2 are both connected to the first input end A, the cathode of the third diode D3 and the anode of the fourth diode D4 are both connected to the second input end B, the cathode of the first diode D1 and the cathode of the fourth diode D4 are both connected to the first pole 101, and the anode of the second diode D2 and the anode of the third diode D3 are both connected to the second pole 102. The first input end A and the second input end B are used to be connected to an external power supply. When the external power supply Ui is turned on, when the first connection end A is connected to the positive pole of the external power supply, the current passes through the first diode D1, the working circuit, the third diode D3 and the second connection end B in sequence, i.e. reaches the negative pole of the external power supply, and the first pole 101 is the positive pole; when the second connection end B is the positive pole, the current passes through the fourth diode D4, the working circuit, the second diode D2 and the first connection end A in sequence, i.e. reaches the negative pole of the external power supply, and the first pole 101 is the positive pole. As can be seen, the intelligent electronic loudspeaker of the embodiment can make the first pole 101 be the positive pole when the first connection end A or the second connection end B is connected to the positive pole of the external power supply through the one-way polarity circuit, so as to power the entire circuit, and therefore the positive and negative poles of the power supply can be randomly connected to the intelligent electronic loudspeaker, which can ensure the normal work of the electronic loudspeaker.

[0048] In the embodiment, the audio oscillation circuit 17 further comprises a thermistor Rt connected to the audio oscillation chip IC, the thermistor Rt being used to change the resistance value according to the temperature, convert the change of the resistance value into a second electric signal, and transmit the second electric signal to the audio oscillation chip IC, the audio oscillation chip IC adjusting the oscillation frequency according to the second electric signal.

[0049] In the embodiment, the working circuit further comprises a micro-current switch circuit 13, a time control circuit 15 and a power amplifier circuit 19.

[0050] Specifically, the micro-current switch circuit 13 is composed of a first resistor Rl, a second resistor R2, a third resistor R3, a fourth resistor R4, a first capacitor Cl, a second capacitor C2, a third capacitor C3, a first transistor Tl, a second transistor T2 and a push button switch K. More specifically, the first resistor Rl and the push button switch K are connected in series between the first pole 101 and the second pole 102, the second resistor R2 and the first capacitor Cl are connected in parallel with the push button switch K, the third resistor R3, the fourth resistor R4 and the first transistor Tl are connected in series between the first pole 101 and the second pole 102, the base of the first transistor Tl is connected between the second resistor R2 and the first capacitor Cl, the collector and the emitter of the first transistor Tl are connected to the third resistor R3 and the second pole 102 respectively, the base, the collector and the emitter of the second transistor T2 are connected between the second capacitor C2, the fourth resistor R4 and the third resistor R3, the third capacitor C3 respectively, the second capacitor C2 and the third capacitor C3 are connected to the second pole 102, the emitter of the second transistor T2 and the third capacitor C3 are further connected to the audio oscillation circuit 17, and the base of the second transistor T2 is further connected between the third resistor R3 and the collector of the first transistor Tl.

[0051] Specifically, the time control circuit 15 is composed of a fifth resistor R5, a sixth resistor R6, a fourth capacitor C4, a fifth diode D5 and a third transistor T3. More specifically, the fifth resistor R5 and the fourth capacitor C4 are connected in series between the audio oscillation circuit 17 and the second pole 102, the fifth diode D5, the sixth resistor R6 and the third transistor T3 are connected in series between the audio oscillation circuit 17 and the second pole 102, and the base, the collector and the emitter of the third transistor T3 are connected to the sixth resistor R6, the audio oscillation circuit 17 and the second pole 102 respectively. Specifically, the sixth resistor R6 can be replaced by a voltage stabilizing diode.

[0052] Specifically, the audio oscillation circuit 17 is composed of the seventh resistor R7, the eighth resistor R8, the ninth resistor R9, the tenth resistor R10, the eleventh resistor R11, the twelfth resistor R12, the thermistor Rt, the fifth capacitor C5, the sixth capacitor C6, the seventh capacitor C7, the audio oscillation chip IC and the volume detection element 171. The volume detection element 171 can be specifically a pickup microphone MK. The audio oscillation chip IC includes the first pin 1, the second pin 2, the third pin 3, the fourth pin 4, the fifth pin 5, the sixth pin 6, the seventh pin 7 and the eighth pin 8. The seventh resistor R7 and the pickup microphone MK are connected in series between the eighth pin 8 and the second pole 102, the ninth resistor R9, the thermistor Rt and the tenth resistor R10 connected in parallel, the eleventh resistor R11, the sixth capacitor C6 and the fifth capacitor C5 are connected in series between the eighth pin 8 and the second pole 102, the eighth resistor R8 is connected between the fourth pin 4 and the eighth pin 8, the seventh capacitor C7 is connected between the fifth pin 5 and the second pole 102, and the two ends of the twelfth resistor R12 are connected between the fifth capacitor C5 and the sixth capacitor C6, and between the seventh resistor R7 and the pickup microphone MK. The first pin 1 is connected to the second pole 102, the second pin 2 and the sixth pin 6 are connected between the eleventh resistor R11 and the sixth capacitor C6, the seventh pin 7 is connected between the ninth resistor R9 and the tenth resistor R10, the collector of the third transistor T3 is connected to the fourth pin 4, the cathode of the fifth diode D5, the fifth resistor R5 and the emitter of the second transistor T2 are all connected to the eighth pin 8, and the third pin 3 is connected to the power amplifier circuit 19. Specifically, the audio oscillation chip IC can be an audio oscillation integrated circuit. More specifically, the model of the audio oscillation chip IC can be NE555, of course, other models are also possible, which are not limited here.

[0053] Specifically, the power amplifier circuit 19 is composed of the thirteenth resistor R13, the high-power amplifier tube T4 and the coil DL. More specifically, the thirteenth resistor R13 is connected between the third pin 3 and the base of the high-power amplifier tube T4, the other two poles of the high-power amplifier tube T4 are connected to the coil DL and the second pole 102 respectively, and the other end of the coil DL is connected to the first pole 101.

[0054] When the button switch K is on, T1 is off, the current flows from the first pole 101 through R4 to the collector of the second transistor T2, through R4 and R3 to the base of the second transistor T2, and is output from the emitter of the second transistor T2, to supply power to the time control circuit 15 and the audio oscillation circuit 17. At this time, the fourth pin 4 of the integrated circuit IC is at a positive potential, the audio oscillation circuit works, the signal output from the third pin 3 is amplified by R13 and T4, and is output to the coil DL to generate electromagnetic vibration and pull the diaphragm up and down to produce sound. The oscillation frequency is determined by R9, Rt, R10, R11, C5 and C6. The temperature compensation effect is achieved by connecting Rt and R10 in parallel. The anti-interference effect is achieved by C7.

[0055] When the switch K is on, the positive potential charges the fourth capacitor C4 through R5, and the voltage across the capacitor gradually rises. After a period of time, when the voltage across the capacitor UC4 > UBE3, the third transistor T3 is turned on and becomes negative, i.e. the fourth pin 4 of the integrated circuit IC is at a negative potential, the integrated circuit IC stops oscillating, and the power amplifier T4 is cut off, so the speaker stops producing sound.

[0056] When the button switch K is off, the first transistor T1 is turned on, and the second transistor T2 is cut off, so the power supply to the oscillation circuit is cut off and the oscillation stops, and the speaker stops producing sound. At the same time, the fourth capacitor C4 is rapidly discharged through the fifth diode D5, ready for recharging when K is turned on next time, to ensure the accuracy of time control.

[0057] In this embodiment, the pickup microphone MK is used to obtain the sound produced at the diaphragm and convert it into an electric signal, which is input to the second pin 2 and the sixth pin 6 through R12 and C6, so as to change the oscillation frequency of the audio oscillation circuit 17 and achieve the adjustment of the sound frequency of the electronic speaker. The seventh resistor R7 provides a static working current for the pickup microphone MK, and the seventh capacitor C7 has an anti-interference effect. The diaphragm has a natural sound frequency F1, and when the electromagnetic force generated by the coil after the signal is amplified is consistent, F1 = F2, i.e. the sound produced by resonance is optimal. Since temperature changes will cause the diaphragm to expand and contract due to temperature changes, the natural frequency F2 will change, and changes in power supply voltage and temperature and humidity will also cause the circuit frequency F1 to change, so F1 ≠ F2, and the volume will decrease. By changing the oscillation frequency of the audio oscillation circuit 17, the circuit oscillation frequency F2 can be changed, so that F1 = F2.

[0058] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. An intelligent electronic horn, characterized by, The smart electronic loudspeaker comprises an upper sound core (31), a lower sound core (33), a bobbin (35), a coil (DL), a sound film (37) and a echo plate (39), the coil (DL) is wound on the bobbin (35), the bobbin (35) is connected to the lower sound core (33), the upper sound core (31) is movably arranged along a first direction relative to the lower sound core (33), the echo plate (39) is fixedly connected to the upper sound core (31), and the sound film (37) is partially connected to the upper sound core (31) to move along the first direction relative to the lower sound core (33) together with the upper sound core (31); wherein the outer side edge of the echo plate (39) is bent to form a bending part (391).

2. The intelligent electronic horn of claim 1, wherein, The upper sound core (31) and the lower sound core (33) are coaxially arranged, the bobbin (35) comprises a main body (351) and a mounting part (353), the main body (351) is sleeved outside the lower sound core (33), the coil (DL) is wound outside the main body (351), the upper sound core (31) is movably sleeved in the main body (351), and the echo plate (39) is arranged on the side, away from the lower sound core (33), of the sound film (37); the smart electronic loudspeaker further comprises a shell (41), the shell (41) is fixedly connected to the lower sound core (33), the outer periphery of the sound film (37) is fixedly connected to the shell (41), one end of the shell (41) forms an end cover (411), part of the lower sound core (33) penetrates through the end cover (411) and extends out of the shell (41), the other end of the shell (41) forms an opening, the sound film (37) is arranged at the opening to close the opening, part of the upper sound core (31) penetrates through the sound film (37) and extends out of the shell (41), part of the upper sound core (31), part of the lower sound core (33), the coil (DL) and the bobbin (35) are contained in the shell (41); the smart electronic loudspeaker further comprises a circuit board mounting bracket (45) and a circuit board (46) mounted on the bobbin (35), the circuit board mounting bracket (45) is connected to the shell (41), the circuit board (46) is mounted on the circuit board mounting bracket (45), and the circuit board (46) is provided with a control circuit.

3. The intelligent electronic horn of claim 1, wherein, The bending part (391) of the echo plate (39) is bent towards the side of the sound film (37).

4. The intelligent electronic horn of claim 1, wherein, A convex part (393) is further formed between the center of the echo plate (39) and the bending part (391).

5. The intelligent electronic horn of claim 4, wherein, The echo plate (39) is circular, and the echo plate (39) further comprises a flat plate part (394) and a middle part (395), in the radial direction of the echo plate (39), the flat plate part (394) is located between the convex part (393) and the bending part (391), the middle part (395) is located at the center of the echo plate (39), and the middle part (395) is flat plate-shaped.

6. The intelligent electronic horn of claim 1, wherein, The echo plate (39) is circular, and a ratio of a width of the bending portion (391) of the echo plate (39) in a radial direction of the echo plate (39) to a radius of the echo plate (39) is 1:34~5:

34.

7. The intelligent electronic horn of claim 1, wherein, The echo plate (39) is made by an integral molding mode.

8. The intelligent electronic horn of claim 1, wherein, The smart electronic loudspeaker further comprises a control circuit, and the control circuit comprises a working circuit, the working circuit comprises an audio oscillation circuit (17), the audio oscillation circuit (17) comprises a volume detection element (171) and an audio oscillation chip (IC), the volume detection element (171) is connected to the audio oscillation chip (IC), the volume detection element (171) is used for obtaining a sound of a diaphragm vibration and converting the sound into a first electric signal, and the first electric signal is transmitted to the audio oscillation chip (IC), and the audio oscillation chip (IC) adjusts an oscillation frequency according to the first electric signal.

9. The intelligent electronic horn of claim 8, wherein, The audio oscillation circuit (17) further comprises a thermistor (Rt), the thermistor (Rt) is connected to the audio oscillation chip (IC), the thermistor (Rt) is used for changing a resistance value according to a temperature, converting a change of the resistance value into a second electric signal, and transmitting the second electric signal to the audio oscillation chip (IC), and the audio oscillation chip (IC) adjusts the oscillation frequency according to the second electric signal.

10. The intelligent electronic horn of claim 8, wherein, The control circuit further comprises a unidirectional polarity circuit (11), a first pole (101) and a second pole (102), the unidirectional polarity circuit (11) comprises a first diode (D1), a second diode (D2), a third diode (D3), a fourth diode (D4), a first input end (A) and a second input end (B), an anode of the first diode (D1) and a cathode of the second diode (D2) are connected to the first input end (A), a cathode of the third diode (D3) and an anode of the fourth diode (D4) are connected to the second input end (B), a cathode of the first diode (D1) and a cathode of the fourth diode (D4) are connected to the first pole (101), an anode of the second diode (D2) and an anode of the third diode (D3) are connected to the second pole (102), and the first input end (A) and the second input end (B) are used for being connected to an external power supply.

11. The intelligent electronic horn of claim 10, wherein, The working circuit further comprises a micro-current switch circuit (13), a time control circuit (15) and a power amplifier circuit (19) connected in sequence, and the unidirectional polarity circuit (11) is connected to the micro-current switch circuit (13), the time control circuit (15), the audio oscillation circuit (17) and the power amplifier circuit (19) respectively.

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