Snail-shaped intelligent electronic horn
By opening a drainage hole on the electronic speaker body, the problem of sound quality and volume being affected by water ingress is solved, enabling rapid water drainage and rapid restoration of sound quality and volume.
Patent Information
- Application Number
- CN202520070876.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-01-13
AI Technical Summary
The sound quality and volume of existing electronic speakers are affected after water gets in, and the recovery time is relatively long.
A drainage hole is made in the body of the electronic speaker to allow airflow to expel any water that enters, ensuring a rapid recovery of sound quality and volume.
The drainage hole design allows water to drain quickly, preventing prolonged impact on sound quality and volume due to water ingress and ensuring the normal operation of the electronic speaker.
Smart Images
Figure CN223809898U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of vehicles, in particular to a snail type intelligent electronic horn. BACKGROUND
[0002] The electronic horn is an audio signal device of the automobile. In the driving process of the automobile, the driver sends necessary audio signals according to needs and regulations, warns pedestrians and attracts the attention of other vehicles to ensure traffic safety, and also is used for urging and signal transmission.
[0003] In the scenes of raining and washing the car, the electronic horn often contacts with water, and sometimes water enters the inside of the electronic horn, which causes the sound quality and volume of the electronic horn to be affected. At this time, the electronic horn can gradually recover to normal after several days when the water slowly volatilizes. CONTENT OF THE UTILITY MODEL
[0004] Therefore, the purpose of the present application is to provide a snail type intelligent electronic horn which can avoid the influence of water on sound quality and volume.
[0005] To achieve the above purpose, the present application provides a snail type intelligent electronic horn, which comprises a shell, a cylinder and a loudspeaker tube. The cylinder is in a cylindrical shape, the loudspeaker tube is in a horn shape, the shell and the loudspeaker tube are respectively connected to two ends of the cylinder, and both are in communication with the inner cavity of the cylinder. In addition, a drain hole in communication with the inner cavity of the cylinder is arranged on the side wall of the cylinder.
[0006] Optionally, the drain hole is arranged on the end wall of the end of the cylinder connected with the loudspeaker tube.
[0007] Optionally, the drain hole is arranged at a position adjacent to the opening of the loudspeaker tube on the end wall of the cylinder.
[0008] Optionally, the drain hole is a plurality of drain holes, and the plurality of drain holes are arranged along the circumferential direction of the end wall of the cylinder in sequence.
[0009] Optionally, the snail type intelligent electronic horn further comprises a diaphragm, a circuit board, a wire frame, an upper sound core and a lower sound core. The shell is hollow to form an accommodating cavity. The diaphragm, the upper sound core, the circuit board and the wire frame are arranged in the accommodating cavity. The drive coil is wound on the wire frame. The lower sound core is fixedly arranged relative to the wire frame and the shell. The upper sound core is movable relative to the lower sound core. The diaphragm is partially connected to the shell and partially connected to the upper sound core. The circumferential edge of the diaphragm is fixedly connected to the shell. The middle part of the diaphragm is fixedly connected to the upper sound core. The diaphragm is located at one end of the shell close to the cylinder.
[0010] Optionally, the snail type intelligent electronic horn further comprises a control circuit, the control circuit comprising a unidirectional polarity circuit, a first pole and a second pole; the unidirectional polarity circuit comprising 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 both connected to the first input end, the cathode of the third diode and the anode of the fourth diode are both connected to the second input end, the cathode of the first diode and the cathode of the fourth diode are both connected to the first pole, the anode of the second diode and the anode of the third diode are both connected to the second pole; the first input end and the second input end are used for being connected to an external power supply.
[0011] Optionally, the control circuit further comprises a working circuit, the working circuit comprising an audio oscillation circuit, the audio oscillation circuit comprising a volume detection element and an audio oscillation chip, the volume detection element being connected to the audio oscillation chip, the volume detection element being used for obtaining a sound of a vibrating diaphragm and converting the sound into a first electric signal, and transmitting the first electric signal to the audio oscillation chip, the audio oscillation chip adjusting an oscillation frequency according to the first electric signal.
[0012] Optionally, the audio oscillation circuit further comprises a thermistor, the thermistor being connected to the audio oscillation chip, the thermistor being 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, the audio oscillation chip adjusting an oscillation frequency according to the second electric signal.
[0013] Optionally, the control circuit further comprises a micro-current switch circuit, a time control circuit and a power amplifier circuit connected in sequence, and the unidirectional polarity circuit is connected to the micro-current switch circuit, the time control circuit, the audio oscillation circuit and the power amplifier circuit respectively.
[0014] Optionally, the audio oscillation circuit is composed of a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, the thermistor, a fifth capacitor, a sixth capacitor, a seventh capacitor, the audio oscillation chip and the volume detection element, and the volume detection element is specifically a pickup microphone; the audio oscillation chip comprises a first pin, a second pin, a third pin, a fourth pin, a fifth pin, a sixth pin, a seventh pin and an eighth pin, the seventh resistor and the pickup microphone are connected in series between the eighth pin and the second pole, the ninth resistor, the thermistor and the tenth resistor connected in parallel, the eleventh resistor, the sixth capacitor and the fifth capacitor are connected in series between the eighth pin and the second pole, the eighth resistor is connected between the fourth pin and the eighth pin, the seventh capacitor is connected between the fifth pin and the second pole, the twelfth resistor is connected between the fifth capacitor and the sixth capacitor, the seventh resistor and the pickup microphone, the first pin is connected to the second pole, the second pin and the sixth pin are connected between the eleventh resistor and the sixth capacitor, and the seventh pin is connected between the ninth resistor and the tenth resistor.
[0015] The micro-current switching circuit is composed of a first resistor, a second resistor, a third resistor, a fourth resistor, a first capacitor, a second capacitor, a third capacitor, a first transistor, a second transistor and a button switch; the first resistor and the button switch are connected in series between the first pole and the second pole, the second resistor and the first capacitor connected in series are connected in parallel with the button switch, the third resistor, the fourth resistor and the first transistor are connected in series between the first pole and the second pole, the base of the first transistor is connected between the second resistor and the first capacitor, the collector and the emitter of the first transistor are connected to the third resistor and the second pole respectively, the base, the collector and the emitter of the second transistor are connected between the second capacitor, the fourth resistor and the third resistor, the third capacitor, the second capacitor and the third capacitor are both connected to the second pole, the emitter of the second transistor and the third capacitor are further connected to the audio oscillation circuit, the base of the second transistor is further connected between the third resistor and the collector of the first transistor, and the emitter of the second transistor is connected to the eighth pin.
[0016] The time control circuit is composed of a fifth resistor, a sixth resistor, a fourth capacitor, a fifth diode and a third triode, the fifth resistor and the fourth capacitor are connected in series between the audio oscillation circuit and the second pole, the fifth diode, the sixth resistor and the third triode are connected in series between the audio oscillation circuit and the second pole, the base, the collector and the emitter of the third triode are connected to the sixth resistor, the audio oscillation circuit and the second pole respectively, the collector of the third triode is connected to the fourth pin, the cathode of the fifth diode and the fifth resistor are connected to the eighth pin, and the third pin is connected to the power amplifier circuit.
[0017] The power amplifier circuit is composed of a thirteenth resistor, a high-power amplifier tube and a drive coil, the thirteenth resistor is connected between the third pin and the base of the high-power amplifier tube, the other two poles of the high-power amplifier tube are connected to the drive coil and the second pole respectively, and the other end of the drive coil is connected to the first pole.
[0018] From the above, in the snail type intelligent electronic horn, the drain hole is arranged on the barrel, when water enters the snail type intelligent electronic horn, the water can be discharged from the sound channel along the airflow generated when the snail type intelligent electronic horn sounds, and the normal sound can be quickly restored, so that the sound quality and volume of the snail type intelligent electronic horn can be prevented from being affected for a long time due to water. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. 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, and for those skilled in the art, other related drawings can also be obtained without creative labor.
[0020] Figure 1 It is a front view of the snail type intelligent electronic horn of an embodiment of the present application.
[0021] Figure 2 It is a front view of the snail type intelligent electronic horn of an embodiment of the present application. Figure 1 It is a top view of the snail type intelligent electronic horn shown in the figure.
[0022] Figure 3 It is a top view of the snail type intelligent electronic horn shown in the figure. Figure 1 It is a bottom view of the snail type intelligent electronic horn shown in the figure.
[0023] Figure 4 It is a bottom view of the snail type intelligent electronic horn shown in the figure. Figure 1 It is a structure schematic diagram of the snail type intelligent electronic horn shown in the figure.
[0024] Figure 5 Figure 1A cross-sectional view of the snail-type intelligent electronic horn.
[0025] Figure 6 For Figure 1 A structural schematic view of the control circuit of the snail-type intelligent electronic horn.
[0026] Figure 7 For Figure 1 A structural block diagram of the control circuit of the snail-type intelligent electronic horn. DETAILED DESCRIPTION
[0027] The specific embodiments of the present application will be described in detail hereinafter with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the description of the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.
[0028] In the description of the present application, unless otherwise explicitly specified and limited, the terms "arrange", "mount", "connect" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.
[0029] 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.
[0030] The terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, in addition to containing the listed elements, other elements not explicitly listed can also be contained.
[0031] Please refer to Figures 1 to 4 The snail-type intelligent electronic horn of an embodiment of the present application includes a shell 30, a barrel 31 and a loudspeaker barrel 32. The barrel 31 is generally cylindrical, and the loudspeaker barrel 32 is generally horn-shaped. The shell 30 and the loudspeaker barrel 32 are respectively connected to two ends of the barrel 31, and both communicate with the inner cavity of the barrel 31. Among them, a drain hole 311 which communicates with the inner cavity of the barrel 31 is formed on the outer wall of the barrel 31.
[0032] In the snail-type intelligent electronic horn of the present embodiment, since the drain hole is formed on the barrel, when water enters the snail-type intelligent electronic horn, the water can be discharged from the sound channel along the airflow generated when the snail-type intelligent electronic horn is ringing, and the normal ringing can be quickly restored, so that the sound quality and volume of the snail-type intelligent electronic horn can be prevented from being affected for a long time due to water entering.
[0033] In this embodiment, the drain hole 311 is arranged on the end wall of the barrel 31 at the end connected with the speaker barrel 32. Specifically, the drain hole 311 is arranged at the position of the end wall of the barrel 31 adjacent to the opening 321 of the speaker barrel 32, so as to facilitate the drainage of water. When the snail-type intelligent electronic speaker is installed on a vehicle, the opening of the speaker barrel 32 faces the ground, so that the water flows in the direction of the drain hole 311 under the action of gravity, which is more conducive to drainage.
[0034] Specifically, the drain hole 311 can be multiple or one. Specifically, the diameter of the drain hole 311 can be about 0.4-3mm. More specifically, when the drain hole 311 is multiple, the multiple drain holes 311 are arranged in sequence along the circumferential direction of the end wall of the barrel 31, so that the water can be drained in sequence through the multiple drain holes 311 in the process of water vapor flow. More specifically, the drain hole 311 is arranged close to the outer periphery of the end wall of the barrel 31. Of course, the drain hole 311 can also be arranged at other positions of the barrel 31.
[0035] Specifically, the barrel 31 is provided with a spiral partition plate 313 to form a spiral channel 315 in the barrel 31, and the channel 315 is in communication with the speaker barrel 32 at one end of the outer periphery side of the barrel 31. The sound waves propagate in the spiral channel 315, and the energy of the sound waves accumulates and enhances in the channel, and finally the sound with resonance effect is output from the speaker barrel 32.
[0036] In this embodiment, one end of the speaker barrel 32 is connected to the end wall of one end of the barrel 31, and the cavity cross-sectional area of the speaker barrel 32 gradually increases from the end connected to the barrel 31 to the other end. Specifically, the speaker barrel 32 can also be spiral.
[0037] Please refer to Figure 4 In this embodiment, the snail-type intelligent electronic speaker further comprises a diaphragm 33, a circuit board 35, a bobbin 37, an upper voice coil 39 and a lower voice coil 41. The shell 30 is hollow to form a receiving cavity, and the diaphragm 33, the upper voice coil 39, the circuit board 35 and the bobbin 37 are arranged in the receiving cavity. The drive coil DL is wound on the bobbin 37, and the lower voice coil 41 is fixedly arranged relative to the bobbin 37 and the shell 30. The upper voice coil 39 is movable relative to the lower voice coil 41. The diaphragm 33 is partially connected to the shell 30 and partially connected to the upper voice coil 39. The drive coil DL is used to generate electromagnetic vibration to pull the diaphragm 33 up and down under the action of the control circuit.
[0038] Specifically, the circumferential edge of the diaphragm 33 is fixedly connected to the shell 30, and the middle part of the diaphragm 33 is fixedly connected to the upper voice coil 39. More specifically, the diaphragm 33 is connected to the top of the upper voice coil 39.
[0039] Specifically, the diaphragm 33 is located at one end of the shell 30 close to the barrel 31.
[0040] Specifically, the wire holder 37 is arranged in the shell 30 away from the barrel 31, and the lower sound core 39 is partially arranged in the shell 30 away from the barrel 31 and partially extends out of the shell 30.
[0041] Specifically, the upper sound core 39 and the lower sound core 41 are coaxially arranged. More specifically, the wire holder 37 is provided with a central hole in the center, and the upper sound core 39 and the lower sound core 41 are partially arranged in the central hole.
[0042] Specifically, the snail-shaped intelligent electronic horn further comprises a plug-in piece 45 for connecting the control circuit on the circuit board 35 to an external power supply.
[0043] In this embodiment, the sound film 33 moves up and down to generate sound, and the sound is transmitted out of the snail-shaped intelligent electronic horn from the shell 30 through the barrel 31 and the loudspeaker tube 32 in turn, so that the barrel 31 and the loudspeaker tube 32 jointly form a sound channel for conducting sound.
[0044] In this embodiment, the snail-shaped intelligent electronic horn further comprises a control circuit, which can be arranged on the circuit board 35.
[0045] In this embodiment, please refer to Figure 5 , the control circuit comprises a one-way polarity circuit 11, a working circuit (not marked in the figure), 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.
[0046] In the snail-shaped intelligent electronic horn of this embodiment, 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 and the third diode D3 to the second connection end B in turn, 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 and the second diode D2 to the first connection end A in turn, 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 snail-shaped intelligent electronic horn of this embodiment can make the first pole 101 be the positive pole through the one-way polarity circuit, regardless of whether the first connection end A or the second connection end B is connected to the positive pole of the external power supply, and the entire circuit is powered, so the positive and negative poles of the power supply can be randomly connected to the snail-shaped intelligent electronic horn, and the electronic horn can work normally.
[0047] In this embodiment, please refer to Figure 5 Figure 6 The working circuit includes micro-current switch circuit 13, time control circuit 15, audio oscillation circuit 17 and power amplifier circuit 19.
[0048] In this embodiment, the audio oscillation circuit 17 includes 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 to obtain the sound of the diaphragm vibration, and is converted 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 the oscillation frequency according to the first electric signal.
[0049] In this embodiment, the audio oscillation circuit 17 further includes a thermistor Rt, the thermistor Rt is connected to the audio oscillation chip IC, the thermistor Rt is used to change the resistance value according to the temperature, and the change of the resistance value is converted into a second electric signal, and the second electric signal is transmitted to the audio oscillation chip IC, and the audio oscillation chip IC adjusts the oscillation frequency according to the second electric signal.
[0050] Specifically, the micro-current switch circuit 13 is composed of a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first capacitor C1, a second capacitor C2, a third capacitor C3, a first triode T1, a second triode T2 and a button switch K. More specifically, the first resistor R1 and the 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 C1 connected in series are connected in parallel with the button switch K, the third resistor R3, the fourth resistor R4 and the first triode T1 are connected in series between the first pole 101 and the second pole 102, the base of the first triode T1 is connected between the second resistor R2 and the first capacitor C1, the collector and the emitter of the first triode T1 are connected to the third resistor R3 and the second pole 102 respectively, the base, the collector and the emitter of the second triode T2 are connected between the second capacitor C2, the fourth resistor R4 and the third resistor R3, the third capacitor C3, the second capacitor C2 and the third capacitor are both connected to the second pole 102, the emitter of the second triode T2 and the third capacitor C3 are also connected to the audio oscillation circuit 17, and the base of the second triode T2 is also connected between the third resistor R3 and the collector of the first triode T1.
[0051] Specifically, the time control circuit 15 is composed of the fifth resistor R5, the sixth resistor R6, the fourth capacitor C4, the fifth diode D5 and the 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, 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 detecting element 171. The volume detecting 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, the twelfth resistor R12 has its two ends connected between the fifth capacitor C5 and the sixth capacitor C6, and between the seventh resistor R7 and the pickup microphone MK respectively. 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, and of course other models are also possible, which are not limited herein.
[0053] Specifically, the power amplifier circuit 19 is composed of the thirteenth resistor R13, the high-power amplifier T4 and the drive coil DL. More specifically, the thirteenth resistor R13 is connected between the third pin 3 and the base of the high-power amplifier T4, the other two poles of the high-power amplifier T4 are connected to the drive coil DL and the second pole 102 respectively, and the other end of the drive 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 the fourth resistor R4 and the third resistor R3 to the base of the second transistor T2, and is output from the emitter of the second transistor T2, thereby supplying 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 the thirteenth resistor R13 and the power amplifier T4, and is then output to the driving coil DL to generate electromagnetic vibration and pull the diaphragm up and down to produce sound. The oscillation frequency is determined by the ninth resistor R9, the thermistor Rt, the tenth resistor R10, the eleventh resistor R11, the fifth capacitor C5 and the sixth capacitor C6. The thermistor Rt and the tenth resistor R10 are connected in parallel to compensate for temperature, and the seventh capacitor C7 is used to resist interference.
[0055] During the time when the switch K is on, the positive potential charges the fourth capacitor C4 through the fifth resistor R5, and the voltage across the fourth capacitor C4 gradually rises. After a period of time, when the voltage UC4 across the fourth capacitor C4 is greater than UBE3, the third transistor T3 is turned on and becomes at a negative potential, i.e. the fourth pin 4 of the integrated circuit IC is at a negative potential, the integrated circuit IC stops oscillation, and the power amplifier T4 is cut off, so the loudspeaker 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, thereby cutting off the power supply to the oscillation circuit and stopping the oscillation, and the loudspeaker stops producing sound. At the same time, the fourth capacitor C4 is rapidly discharged through the fifth diode D5, and is ready to be recharged when the button switch K is turned on next time, so as to ensure the accuracy of time control each time.
[0057] In this embodiment, the pickup microphone MK is used to obtain the sound produced at the diaphragm, and convert the sound into an electric signal. The electric signal is input to the second pin 2 and the sixth pin 6 through the twelfth resistor R12 and the sixth capacitor C6, thereby changing the oscillation frequency of the audio oscillation circuit 17 and adjusting the sound produced by the electronic loudspeaker, so as to avoid the problems such as the decrease in volume caused by the change in frequency due to temperature, humidity, power voltage change and the fatigue of the sound producing diaphragm after working for a period of time. The seventh resistor R7 provides a static working current for the pickup microphone MK, and the seventh capacitor C7 is used to resist interference. The inherent sound producing frequency F1 of the diaphragm and the circuit oscillation frequency F2 are amplified, and the electromagnetic force generated by the driving coil is consistent when F1=F2, i.e. the sound produced by resonance is optimal. Since the temperature change will cause the inherent frequency F2 to change due to thermal expansion and contraction of the diaphragm, and the power voltage and temperature and humidity change will also cause the circuit frequency F1 to change, therefore 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. A snail type intelligent electronic horn, characterized in that, The shell (30), the cylinder (31) and the loudspeaker (32), the cylinder (31) is cylindrical, the loudspeaker (32) is a horn, the shell (30) and the loudspeaker (32) are connected to the two ends of the cylinder (31) respectively, and are communicated with the inner cavity of the cylinder (31), wherein the outer wall of the cylinder (31) is provided with a drainage hole (311) communicated with the inner cavity of the cylinder (31).
2. The snail-type intelligent electronic horn according to claim 1, wherein, The drainage hole (311) is arranged on the end wall of the end of the cylinder (31) connected with the loudspeaker (32).
3. The snail-type intelligent electronic horn according to claim 2, wherein, The drainage hole (311) is arranged on the end wall of the cylinder (31) adjacent to the opening (321) of the loudspeaker (32).
4. The snail-type intelligent electronic horn according to claim 1, wherein, The drainage hole (311) is a plurality of drainage holes (311), and the plurality of drainage holes (311) are arranged along the circumferential direction of the end wall of the cylinder (31) in sequence.
5. The intelligent electronic horn of claim 1, wherein the control unit is configured to control the operation of the horn by controlling the operation of the power amplifier. The snail type intelligent electronic horn further comprises a sound film (33), a circuit board (35), a wire frame (37), an upper sound core (39) and a lower sound core (41), the shell (30) is hollow to form an accommodating cavity, the sound film (33), the upper sound core (39), the circuit board (35) and the wire frame (37) are arranged in the accommodating cavity, a drive coil (DL) is arranged on the wire frame (37), the lower sound core (41) is fixedly arranged relative to the wire frame (37) and the shell (30), the upper sound core (39) is movable relative to the lower sound core (41), and the sound film (33) is partially connected to the shell (30) and partially connected to the upper sound core (39); the circumferential edge of the sound film (33) is fixedly connected to the shell (30), the middle part of the sound film (33) is fixedly connected to the upper sound core (39), and the sound film (33) is located in one end of the shell (30) close to the cylinder (31).
6. The snail-type intelligent electronic horn according to claim 1, wherein, The snail type intelligent electronic horn further comprises a control circuit, the control circuit 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 connected to the first input end (A), the cathode of the third diode (D3) and the anode of the fourth diode (D4) are connected to the second input end (B), the cathode of the first diode (D1) and the cathode of the fourth diode (D4) are connected to the first pole (101), and the anode of the second diode (D2) and the anode of the third diode (D3) are connected to the second pole (102); the first input end (A) and the second input end (B) are used for being connected to an external power supply.
7. The intelligent electronic horn of claim 6, wherein the control unit is configured to determine the number of the plurality of the control units based on the number of the plurality of the control units connected to the control unit. The control circuit further 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 the sound of the vibration of the sound film and converting it 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 the oscillation frequency according to the first electric signal.
8. The intelligent electronic horn of claim 7, wherein the control unit is configured to control the operation of the horn by controlling the operation of the power amplifier. 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 the resistance value according to the temperature, converting the 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.
9. The intelligent electronic horn of claim 7, wherein the control unit is configured to control the operation of the horn by controlling the operation of the power amplifier. The control 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.
10. The intelligent electronic horn of claim 9, wherein the control unit is configured to control the operation of the horn by controlling the operation of the power amplifier. The audio oscillation circuit (17) is composed of the seventh resistance (R7), the eighth resistance (R8), the ninth resistance (R9), the tenth resistance (R10), the eleventh resistance (R11), the twelfth resistance (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), wherein the volume detection element (171) is specifically a pickup microphone (MK); the audio oscillation chip (IC) includes a first pin (1), a second pin (2), a third pin (3), a fourth pin (4), a fifth pin (5), a sixth pin (6), a seventh pin (7) and an eighth pin (8), the seventh resistance (R7) and the pickup microphone (MK) are connected in series between the eighth pin (8) and the second electrode (102), the ninth resistance (R9), the thermistor (Rt) and the tenth resistance (R10) in parallel, the eleventh resistance (R11), the sixth capacitor (C6) and the fifth capacitor (C5) are connected in series between the eighth pin (8) and the second electrode (102), the eighth resistance (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 electrode (102), the two ends of the twelfth resistance (R12) are connected between the fifth capacitor (C5) and the sixth capacitor (C6), and between the seventh resistance (R7) and the pickup microphone (MK), the first pin (1) is connected with the second electrode (102), the second pin (2) and the sixth pin (6) are connected between the eleventh resistance (R11) and the sixth capacitor (C6), and the seventh pin (7) is connected between the ninth resistance (R9) and the tenth resistance (R10). The micro-current switch circuit (13) is composed of a first resistor (R1), a second resistor (R2), a third resistor (R3), a fourth resistor (R4), a first capacitor (C1), a second capacitor (C2), a third capacitor (C3), a first triode (T1), a second triode (T2) and a button switch (K). The first resistor (R1) and the 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 (C1) connected in series are connected in parallel with the button switch (K), the third resistor (R3), the fourth resistor (R4) and the first triode (T1) are connected in series between the first pole (101) and the second pole (102), the base of the first triode (T1) is connected between the second resistor (R2) and the first capacitor (C1), the collector and the emitter of the first triode (T1) are connected to the third resistor (R3) and the second pole (102) respectively, the base, the collector and the emitter of the second triode (T2) are connected between the second capacitor (C2), the fourth resistor (R4) and the third capacitor (C3) respectively, the second capacitor (C2) and the third capacitor are connected to the second pole (102), the emitter of the second triode (T2) and the third capacitor (C3) are further connected to the audio oscillation circuit (17), the base of the second triode (T2) is further connected between the third resistor (R3) and the collector of the first triode (T1), and the emitter of the second triode (T2) is connected to the eighth pin (8). 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 triode (T3). 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 triode (T3) are connected in series between the audio oscillation circuit (17) and the second pole (102), the base, the collector and the emitter of the third triode (T3) are connected to the sixth resistor (R6), the audio oscillation circuit (17) and the second pole (102) respectively, the collector of the third triode (T3) is connected to the fourth pin (4), the cathode of the fifth diode (D5) and the fifth resistor (R5) are connected to the eighth pin (8), and the third pin (3) is connected to the power amplifier circuit (19). The power amplifier circuit (19) is composed of a thirteenth resistor (R13), a high-power tube (T4) and a drive coil (DL); the thirteenth resistor (R13) is connected between the third pin (3) and the base of the high-power tube (T4), the other two poles of the high-power tube (T4) are respectively connected to the drive coil (DL) and the second pole (102), and the other end of the drive coil (DL) is connected to the first pole (101).