Mobile phone motor performance detection device

Abstract

The embodiment of the utility model discloses a mobile phone motor performance detection device, which comprises a microphone, a vibration pickup, an electric control box, a data acquisition card and electronic equipment, and is characterized in that the microphone is connected with the electric control box and is used for detecting noise signals when a mobile phone motor works, and the noise signals are transmitted to the data acquisition card through the electric control box; the VPU is connected with the electric control box and is used for detecting a vibration signal when the mobile phone motor works in a bone conduction mode and transmitting the vibration signal to the data acquisition card through the electric control box; the data acquisition card is connected with the electronic equipment and is used for transmitting the noise signal and the vibration signal to the electronic equipment; the electronic equipment is used for determining the performance detection result of the mobile phone motor based on the signal amplitudes corresponding to the noise signal and the vibration signal, the noise and vibration of the mobile phone motor in the working state can be rapidly detected, and the accuracy of motor performance detection is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of internal device function test of electronic product especially relates to a mobile phone motor performance detection device. BACKGROUND

[0002] Mobile phone as the symbol of modern society technological progress, has become almost everyone must have the tool. In the traditional mobile phone production process, the vibration feedback of motor is only through artificial by hand feeling to evaluate, the evaluation of the size of noise in the use of motor is also through traditional hearing test, lead to the performance evaluation of motor becomes very subjective, not only slow detection speed, and test result is inaccurate. UTILITARY MODEL CONTENT

[0003] The utility model embodiment provides a mobile phone motor performance detection device, can detect the noise and vibration under the working state of mobile phone motor fast, promotes the accuracy of motor performance detection.

[0004] Firstly, the utility model embodiment provides a mobile phone motor performance detection device, include: fixture, electric control box, data acquisition card and electronic equipment, wherein, the fixture at least includes microphone and vibration pickup,

[0005] Among them, the microphone is connected with the electric control box, detects the noise signal when the mobile phone motor works, and the noise signal is transmitted to the data acquisition card through the electric control box,

[0006] The vibration pickup is connected with the electric control box, detects the vibration signal when the mobile phone motor works through the bone conduction mode, and the vibration signal is transmitted to the data acquisition card through the electric control box,

[0007] The data acquisition card is connected with the electric control box and the electronic equipment respectively, and the noise signal and the vibration signal are transmitted to the electronic equipment,

[0008] The electronic equipment is connected with the data acquisition card, and is used to determine the performance detection result of the mobile phone motor based on the signal amplitude corresponding to the noise signal and the vibration signal respectively.

[0009] The utility model embodiment provides a kind of mobile phone motor performance detection device, the mobile phone motor performance detection device, for detecting the noise signal of microphone when mobile phone motor works, noise signal is transmitted to data acquisition card by electric control box, vibration pickup is used to detect the vibration signal of mobile phone motor when working by bone conduction mode and is transmitted to data acquisition card by electric control box;Data acquisition card, for transmitting noise signal and vibration signal to electronic equipment;Electronic equipment, for determining the performance detection result of mobile phone motor based on the signal amplitude corresponding to noise signal and vibration signal respectively, the above technical solution, by microphone, vibration pickup and the signal transmission and processing between electric control box, data acquisition card and electronic equipment, the noise and vibration under the working state of mobile phone motor can be quickly detected, the accuracy of motor performance detection is improved, whether the noise and vibration of motor meet the requirement is better detected. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 The structural block diagram of the mobile phone motor performance detection device provided by the utility model embodiment is provided;

[0011] Figure 2 The structural schematic diagram of the mobile phone motor performance detection device provided by another utility model embodiment is provided;

[0012] Figure 3 The schematic diagram of the mobile phone motor performance detection result determination provided by the utility model embodiment is provided;

[0013] Figure 4 The schematic diagram of the noise signal amplified by preamplifier in the mobile phone motor performance detection result determination provided by the utility model embodiment is provided;

[0014] Figure 5 The schematic diagram of the noise waveform signal in the mobile phone motor performance detection result determination provided by the utility model embodiment is provided;

[0015] Figure 6 The schematic diagram of the vibration waveform signal in the mobile phone motor performance detection result determination provided by the utility model embodiment is provided;

[0016] Figure 7 The schematic diagram of the corresponding waveform signal of proximity sensor in the mobile phone motor performance detection result determination provided by the utility model embodiment is provided;

[0017] Figure 8 The schematic diagram of the comprehensive waveform signal in the mobile phone motor performance detection result determination provided by the utility model embodiment is provided;

[0018] Figure 9 The circuit schematic diagram of the electric control box provided by the utility model embodiment is provided;

[0019] Figure 10 A circuit structure schematic diagram of a microphone provided by an embodiment of the utility model;

[0020] Figure 11 A circuit structure schematic diagram of a vibration pickup provided by an embodiment of the utility model;

[0021] Figure 12 A circuit structure schematic diagram of a data acquisition card provided by an embodiment of the utility model;

[0022] Figure 13 A circuit structure schematic diagram of a proximity sensor provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0023] The utility model will be further explained in detail below by combining with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0024] Before discussing the example embodiments in more detail, it should be mentioned that some example embodiments are described as processes or methods depicted as flow charts. Although the flow chart describes the operations (or steps) as sequential processes, many of the operations can be implemented in parallel, concurrently or simultaneously. In addition, the order of the operations can be rearranged. The process can be terminated when its operations are completed, but can also have additional steps not included in the drawings. The process can correspond to a method, function, procedure, subroutine, subprogram, etc. In addition, the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0025] The term "comprising" and its variants used in the utility model are open and inclusive, i.e. "including but not limited to". The term "based on" is "at least partially based on". The term "one embodiment" means "at least one embodiment".

[0026] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, in the description of the utility model, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0027] In an embodiment, Figure 1The utility model discloses a kind of structural block diagrams of mobile phone motor performance detection device provided by embodiment one, and the mobile phone motor performance detection device is suitable for the case when mobile phone motor is detected in mobile phone production process. As shown in it, the mobile phone motor performance detection device, comprising: fixture 110, electric control box 120, data acquisition card 130 and electronic equipment 140;Wherein, at least including microphone 101, vibration pickup 102 in fixture 110; Figure 1

[0028] Wherein, microphone 101, with electric control box 120 is connected, for detecting the noise signal when mobile phone motor works, and noise signal is transmitted to data acquisition card 130 by electric control box 120;

[0029] Vibration pickup 102, with electric control box 120 is connected, for detecting the vibration signal when mobile phone motor works by bone conduction mode, and vibration signal is transmitted to data acquisition card 130 by electric control box 120;

[0030] Data acquisition card 130, with electric control box 120, and electronic equipment 140 is connected respectively, for transmitting noise signal and vibration signal to electronic equipment 140;

[0031] Electronic equipment 140, with data acquisition card 130 is connected, for determining the performance detection result of mobile phone motor based on the signal amplitude corresponding to noise signal and vibration signal respectively.

[0032] In the embodiment, before carrying out collection motor performance detection, it needs to be configured in mobile phone in advance drive instruction of motor start, so as to drive motor to start normal according to drive instruction. It can be understood that, when testing mobile phone, the built-in program of mobile phone is used to drive mobile phone motor to work normally, and then mobile phone is placed on the following fixture.

[0033] In the embodiment, the performance detection result of mobile phone motor can include current detection, detection pass and detection fail;In the embodiment, when indicating lamp is blue, it represents that it is in test;When indicating lamp is red, it represents that it fails;When indicating lamp is green, it represents that it passes. It can be understood that the indicating lamp display is different corresponding to different detection results, for example, blue lamp: in test;Green lamp: product OK;Red lamp: product NG.

[0034] ​In the embodiment, the microphone 101 is connected with the electric control box 120, the vibration pickup 102 is also connected with the electric control box 120, the data acquisition card 130 is connected with the electric control box 120, and the electronic device 140 is connected with the data acquisition card 130 respectively. In the embodiment, the microphone 101 can pick up the noise signal of the mobile phone motor working, that is, the noise signal generated by the motor during the receiving test process through the microphone 101, and then the noise signal is transmitted to the data acquisition card 130 through the 5V power supply in the electric control box 120. At the same time, the vibration pickup 102 detects the vibration signal of the mobile phone motor working through the bone conduction mode, and transmits the vibration signal to the data acquisition card 130 through the 1.8V power supply in the electric control box 120. The data acquisition card 130 collects the noise signal transmitted by the microphone 101 and the vibration signal transmitted by the vibration pickup 102, and then respectively converts the noise signal and the vibration signal to signal data that can be understood by the electronic device, and transmits the signal data to the electronic device 140. The electronic device in the embodiment can be a terminal device with a processing chip such as a PC.

[0035] In the embodiment, the electronic device 140 is connected with the data acquisition card 130 respectively, for respectively performing signal amplification processing on the noise signal and the vibration signal through the preamplifier after receiving the noise signal and the vibration signal transmitted by the acquisition card, and respectively performing rectification and filtering on the processed noise signal and the vibration signal through the rectification and filtering circuit arranged in the electronic device. The rectified and filtered noise signal and the vibration signal are used as target noise signal and target vibration signal. On this basis, the performance detection result of the mobile phone motor is determined based on the signal amplitude corresponding to the target noise signal and the target vibration signal, so as to display the detection result through the indicator light.

[0036] In an embodiment, the jig further comprises a proximity sensor and an indicator light.

[0037] The proximity sensor is connected with the electric control box, and is used for starting the performance detection of the mobile phone motor when the mobile phone is placed on the jig and the mobile phone is detected to be placed in place, and transmitting the performance detection signal to the electronic device through the electric control box.

[0038] The indicator light is connected with the electronic device, and is used for displaying the performance detection result.

[0039] In this embodiment, a proximity sensor, connected to the control box 120, is used to detect when a mobile phone is placed on the fixture and is in the correct position. When the phone is detected, the sensor activates the performance test of the mobile phone motor and transmits the performance test signal directly to the electronic device 140 via the 12V power supply in the control box 120. An indicator light, connected to the electronic device, displays the performance test results. It should be noted that the proximity sensor is triggered when a metal object approaches, initiating the detection of whether the mobile phone is placed on the fixture. Upon detecting that the phone is in the correct position, the sensor acts as a start switch to begin the mobile phone motor test. In this embodiment, to facilitate a better understanding of the structure of the mobile phone motor performance testing device, Figure 2 This is a schematic diagram of another mobile phone motor performance testing device provided in an embodiment of the present invention, as shown below. Figure 2 As shown, the mobile phone motor performance testing device includes: a fixture 210, an electronic control box 220, a data acquisition card 230, and an electronic device 240. The fixture 210 includes a proximity sensor 201, a microphone 202, a vibration pickup 203, and an indicator light 204. Specifically, the proximity sensor 201, connected to the electronic control box 220, is used to detect when a mobile phone is placed on the fixture and the phone is in place, thereby activating the mobile phone motor performance testing and transmitting the performance testing signal to the electronic device 240 via the electronic control box 220. The microphone 202, connected to the electronic control box 220, is used to detect the noise signal when the mobile phone motor is working and transmits the noise signal to the data acquisition card 230 via the electronic control box 220. The vibration pickup 203, connected to the electronic control box 220, is used to detect the vibration signal when the mobile phone motor is working via bone conduction. The vibration signal is transmitted to the data acquisition card 230 via the electronic control box 220. The data acquisition card 230 is connected to the electronic control box 220 and the electronic device 240, respectively, and is used to collect noise signals and vibration signals, convert the noise signals and vibration signals, and transmit them to the electronic device 240. The electronic device 240 is connected to the data acquisition card 230 and the indicator light 204, respectively, and is used to amplify the noise signals and vibration signals through the preamplifier, and to rectify and filter the processed noise signals and vibration signals through the rectifier and filter circuit set in the electronic device to obtain the target noise signal and the target vibration signal. The performance test result of the mobile phone motor is determined based on the signal amplitude corresponding to the target noise signal and the target vibration signal, and the test result is displayed through the indicator light 204.

[0040] It can be understood that the proximity sensor in the embodiment is triggered when a metal object approaches, detects whether the mobile phone is placed in place, and serves as the starting switch for the mobile phone motor to start testing; the microphone is used to pick up the noise signal when the motor is working; the bone conduction microphone can effectively pick up the vibration amount when the mobile phone motor is working; the LED lamp is used to display the determination result; specifically, the blue lamp: testing; the green lamp: product OK; the red lamp: product NG. In the embodiment, the electric control box contains a MIC 5V power supply, a VPU 1.8V power supply, a Proximity Sensor 12V power supply, and a control circuit for controlling the RS232 serial port of the Proximity Sensor, and finally the VPU and MIC signals are transmitted to the data acquisition card, and the Proximity Sensor is directly transmitted to the PC through the RS232 serial port; the NIData Card 1406: MIC and VPU data acquisition, and the signal is transmitted to the PC end; the PC end uses the Proximity Sensor to determine the start and end of the test, and provides rectification and filtering of the MIC and VPU signals, and outputs the final determination result to the LED.

[0041] In an embodiment, the determination of the detection result of the mobile phone motor performance includes: respectively performing signal amplification processing on the noise signal and the vibration signal through a preamplifier, and respectively performing rectification and filtering on the processed noise signal and vibration signal through a rectification and filtering circuit arranged in the electronic device to obtain a target noise signal and a target vibration signal; in a case where an amplitude of the target noise signal is lower than an upper limit of a preset first amplitude, and an amplitude of the target vibration signal exceeds a lower limit of a preset second amplitude, determining that a first detection result of the mobile phone motor performance is passed; otherwise, determining that the first detection result of the mobile phone motor performance is failed or in detection.

[0042] Among them, the target noise signal can be understood as the noise signal after rectification and filtering; the target vibration signal can be understood as the vibration signal after rectification and filtering.

[0043] Among them, the preset first amplitude is an amplitude corresponding to the target noise signal, the preset first amplitude corresponds to a corresponding amplitude upper limit and amplitude lower limit, and the amplitude of the target noise signal needs to be lower than the upper limit of the preset first amplitude; at the same time, the preset second amplitude is an amplitude corresponding to the target vibration signal, and the preset second amplitude also corresponds to a corresponding amplitude upper limit and amplitude lower limit, and the amplitude of the target vibration signal needs to exceed the lower limit of the preset second amplitude. It can be understood that, when and only when the amplitude of the target noise signal is lower than the upper limit of the preset first amplitude, and the amplitude of the target vibration signal exceeds the lower limit of the preset second amplitude, it is determined that the first detection result of the mobile phone motor performance is passed, and other cases are in the state of detection failure.

[0044] In an embodiment, the electronic device is further configured to: in a case where the first detection result of the mobile phone motor performance is passed, acquire a pressure output signal detected by the proximity sensor after the mobile phone motor performance detection is started; in a case where the pressure output signal is a rising edge and a pressure value corresponding to the pressure output signal reaches a preset pressure threshold, determine that the second detection result of the mobile phone motor performance is passed; otherwise, determine that the second detection result of the mobile phone motor performance is failed or is being detected.

[0045] It can be understood that, in a case where the first detection result of the mobile phone motor performance is passed, that is, on the basis that the Mic and the VPU both meet the determination condition, the pressure output signal detected is further used to make a further detection result judgment. Specifically, in a case where the pressure output signal is a rising edge and a pressure value corresponding to the pressure output signal reaches a preset pressure threshold, it is determined that the second detection result of the mobile phone motor performance is passed; otherwise, it is determined that the second detection result of the mobile phone motor performance is failed or is being detected.

[0046] For example, in order to better understand the determination logic, Figure 3 A schematic diagram of a mobile phone motor performance detection result determination provided by an embodiment of the present application, Figure 4 A schematic diagram of a noise signal amplified by a preamplifier in a mobile phone motor performance detection result determination provided by an embodiment of the present application. Figure 5 A schematic diagram of a noise waveform signal in a mobile phone motor performance detection result determination provided by an embodiment of the present application. Figure 6 A schematic diagram of a vibration waveform signal in a mobile phone motor performance detection result determination provided by an embodiment of the present application. Figure 7 A schematic diagram of a proximity sensor corresponding waveform signal in a mobile phone motor performance detection result determination provided by an embodiment of the present application. Figure 8 A schematic diagram of a comprehensive waveform signal in a mobile phone motor performance detection result determination provided by an embodiment of the present application. For example, Figure 3As shown, the MIC first amplifies the signal through the preamplifier, and then rectifies and filters the amplified signal through the rectification and filtering circuit provided in the electronic device. The amplitude of the rectified and filtered noise waveform signal is compared with the preset first amplitude. Similarly, the VPU signal is first amplified through the preamplifier, and then the amplified signal is rectified and filtered through the rectification and filtering circuit provided in the electronic device. The amplitude of the rectified and filtered vibration waveform signal is compared with the preset second amplitude. In the case that the amplitude of the target noise signal is lower than the upper limit of the preset first amplitude, and the amplitude of the target vibration signal exceeds the lower limit of the preset second amplitude, it is determined that the detection result of the mobile phone motor performance is passed. It can be understood that only when the MIC and VPU are both passed, the final result is passed, and the indicator light is green. If either the MIC or the VPU is NG, the final result is NG, and the indicator light is red.

[0047] In an embodiment, the electric control box 120 includes a 12V power supply, a 5V power supply, and a 1.8V power supply; the proximity sensor is connected to the 12V power supply in the electric control box 120; the microphone is connected to the 5V power supply in the electric control box 120; and the vibration pickup is connected to the 1.8V power supply in the electric control box 120.

[0048] In this embodiment, the electric control box 120 includes a 12V power supply, a 5V power supply, and a 1.8V power supply, different power supplies are used to power different devices. The proximity sensor is connected to the 12V power supply in the electric control box 120, i.e., the 12V power supply in the electric control box 120 powers the proximity sensor. The microphone is connected to the 5V power supply in the electric control box 120, i.e., the 5V power supply in the electric control box 120 powers the microphone. The vibration pickup is connected to the 1.8V power supply in the electric control box 120, i.e., the 1.8V power supply in the electric control box 120 powers the vibration pickup.

[0049] In an embodiment, the electric control box 120 comprises: a 12V DC power input, a thermistor, a diode, a third capacitor, a fourth capacitor, a first electric control chip, a fifth capacitor, a sixth capacitor, a second electric control chip, a seventh capacitor and an eighth capacitor; wherein the first end of the thermistor is connected with the 12V DC power input; the second end of the thermistor is connected with the first end of the diode; the second end of the diode is connected with the first end of the third capacitor, the first end of the fourth capacitor and the first end of the first electric control chip respectively; the third end of the first electric control chip is connected with the first end of the fifth capacitor, the first end of the sixth capacitor and the third end of the second electric control chip respectively; the fourth end and the second end of the second electric control chip are connected with the first end of the seventh capacitor, the first end of the eighth capacitor and the pin 1 in the VPU chip board in the vibration pickup respectively; the second end of the third capacitor, the second end of the fourth capacitor, the second end of the fifth capacitor, the second end of the sixth capacitor, the second end of the seventh capacitor, the second end of the eighth capacitor, the second end of the first electric control chip and the first end of the second electric control chip are grounded respectively; wherein the 12V power supply is stepped down to a 5V power supply after the first electric control chip; the 5V power supply is stepped down to a 1.8V power supply after the second electric control chip. In an embodiment, in order to better understand the circuit of the electric control box, Figure 9 The circuit schematic diagram of the electric control box provided by the embodiment of the utility model is shown in the figure. Figure 9 The DC-12V in the figure is the 12V DC power input, Figure 9 The F1 in the figure is the thermistor, Figure 9 The D1 in the figure is the diode, Figure 9 The C1 in the figure is the third capacitor, Figure 9 The C5 in the figure is the fourth capacitor, Figure 9 The U4 in the figure is the first electric control chip, Figure 9 The C2 in the figure is the fifth capacitor, Figure 9 The C7 in the figure is the sixth capacitor, Figure 9 The U1 in the figure is the second electric control chip, Figure 9 The C6 in the figure is the seventh capacitor, and Figure 10 The C8 in the figure is the eighth capacitor.

[0050] In an embodiment, the microphone comprises: a noise signal receiving plate and a first connector; wherein the noise signal receiving plate comprises: a VCC pin, a SIN pin and a GND grounding pin connected with the 5V power supply in the electric control box 120; wherein the first connector comprises: a pin 1 and a pin 2; the pin 1 in the first connector is connected with the SIN pin; the pin 1 in the first connector is also connected with the signal access pin in the data acquisition card through the electric control box; and the pin 2 is grounded.

[0051] In an embodiment, in order to better understand the circuit structure of the microphone, Figure 10The utility model provides a circuit structure schematic drawing of a microphone for an embodiment of the utility model. In the embodiment, the noise signal receiving plate is CON2 in Figure 10 , and the first connector is CON3 in Figure 11 .

[0052] In an embodiment, the vibration pickup comprises a first capacitor, a first resistor, a first adjustable resistor, a power amplifier, a second resistor, a second capacitor, a VPU chip plate, a third resistor and a second connector.

[0053] The first end of the first capacitor is grounded, and the second end of the first capacitor is connected with the first end of the first resistor; the second end of the first resistor is connected with the first end of the first adjustable resistor and the second end of the power amplifier respectively; the second end of the first adjustable resistor is connected with pin 1 of the second connector; the third end of the power amplifier is connected with the first end of the second resistor; the first end of the power amplifier is connected with pin 1 of the second connector and connected with the signal access pin in the data acquisition card 130 through pin 1 of the second connector, so as to transmit the vibration signal to the data acquisition card 130; the second end of the second resistor is connected with the first end of the second capacitor and the first end of the third resistor respectively; the second end of the third resistor is grounded; the second end of the second capacitor is connected with the output pin in the VPU chip plate; pin 1 in the VPU chip plate is connected with the 1.8V power supply in the electric control box; and pin 2 of the second connector is grounded.

[0054] In the embodiment, in order to better understand the circuit structure of the vibration pickup, Figure 11 The utility model provides a circuit structure schematic drawing of a vibration pickup for an embodiment of the utility model. In the embodiment, the first capacitor is C4 in Figure 11 , the first resistor is R1 in Figure 11 , the first adjustable resistor is VR2 in Figure 11 , the power amplifier is U3-PT2308A in Figure 11 , the second resistor is R2 in Figure 11 , the second capacitor is C3 in Figure 11 , the VPU chip plate is U2 in Figure 11 , the third resistor is R3 in Figure 12 , and the second connector is CON2 in Figure 13 .

[0055] In an embodiment, the data acquisition card 130 comprises a signal access pin and a signal output pin; the signal access pin is connected with pin 1 of the second connector in the vibration pickup 104 and connected with pin 1 in the first connector in the microphone; and the signal output pin is connected with the electronic equipment 140.

[0056] In the embodiment, the data acquisition card 130 comprises: signal access pins and signal output pins; the signal access pins are connected with the pin 1 of the second connector in the vibration pickup and the pin 1 of the first connector in the microphone; the signal output pins are connected with the electronic device 140, in the embodiment, for better understanding of the circuit structure of the data acquisition card 130, Figure 13 The utility model provides a kind of circuit structure schematic diagram of data acquisition card for one embodiment of the utility model.

[0057] In an embodiment, the proximity sensor comprises: a third connector, a second adjustable resistor, a proximity sensor chip and a relay.

[0058] The pin 2 of the third connector is connected with 12V power supply, and is connected with the first end of the second adjustable resistor and the input end of the proximity sensor chip respectively; the third end of the second adjustable resistor is connected with the output end of the proximity sensor chip; the output end of the proximity sensor chip is connected with the pin 2 of the relay, and the performance detection signal is transmitted to the electronic device through the pin 3 of the relay.

[0059] The pin 1 of the third connector is grounded; the ground end of the proximity sensor chip is grounded; the pin 1 of the relay is grounded.

[0060] In the embodiment, the proximity sensor comprises: a third connector, a second adjustable resistor, a proximity sensor chip and a relay; wherein the pin 2 of the third connector is connected with 12V power supply, and is connected with the first end of the second adjustable resistor and the input end of the proximity sensor chip respectively; the third end of the second adjustable resistor is connected with the output end of the proximity sensor chip; the output end of the proximity sensor chip is connected with the pin 2 of the relay, and the performance detection signal is transmitted to the electronic device through the pin 3 of the relay; the pin 1 of the third connector is grounded; the ground end of the proximity sensor chip is grounded; the pin 1 of the relay is grounded. In the embodiment, for better understanding of the circuit structure of the proximity sensor, Figure 13 The utility model provides a kind of circuit structure schematic diagram of proximity sensor for one embodiment of the utility model. In the embodiment, the third connector is CON1 in Figure 13 , the second adjustable resistor is VR1 in Figure 13 , the proximity sensor chip is PROX SENSOR in ​ , and the relay is K1 (Ralay) in ​ .

[0061] It should be noted that the above only the preferred embodiments of the present application and the use of technical principles. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, those skilled in the art can make various obvious changes, re-adjustment and replacement without departing from the scope of the present application. Therefore, although the above embodiments of the present application has been described in more detail, but the present application is not limited to the above examples, without departing from the concept of the present application, but also can include more other equivalent embodiments, and the scope of the present application is determined by the appended claims.

Claims

1. A mobile phone motor performance testing device, characterized in that, The device includes: a fixture, an electrical control box, a data acquisition card, and electronic equipment; wherein the fixture includes at least a microphone and a vibration pickup. The microphone is connected to the electronic control box, detects the noise signal when the mobile phone motor is working, and transmits the noise signal to the data acquisition card through the electronic control box; The vibration pickup is connected to the electronic control box, and detects the vibration signal when the mobile phone motor is working through bone conduction, and transmits the vibration signal to the data acquisition card through the electronic control box; The data acquisition card is connected to the electronic control box and the electronic device respectively, and transmits the noise signal and the vibration signal to the electronic device. The electronic device is connected to the data acquisition card and determines the performance test result of the mobile phone motor based on the signal amplitudes corresponding to the noise signal and the vibration signal, respectively.

2. The apparatus according to claim 1, characterized in that, The microphone includes a noise signal receiving board and a first connector; wherein the noise signal receiving board includes a VCC pin, a SIN pin, and a GND ground pin connected to a 5V power supply in the control box; wherein the first connector includes a pin 1 and a pin 2; pin 1 of the first connector is connected to the SIN pin; pin 1 of the first connector is also connected to a signal access pin in the data acquisition card through the control box; pin 2 is grounded.

3. The apparatus according to claim 1, characterized in that, The vibration pickup includes: a first capacitor, a first resistor, a first adjustable resistor, a power amplifier, a second resistor, a second capacitor, a VPU chip board, a third resistor, and a second connector; Wherein, the first terminal of the first capacitor is grounded, and the second terminal of the first capacitor is connected to the first terminal of the first resistor; the second terminal of the first resistor is connected to the first terminal of the first adjustable resistor and the second terminal of the power amplifier; the second terminal of the first adjustable resistor is connected to pin 1 of the second connector; the third terminal of the power amplifier is connected to the first terminal of the second resistor; the first terminal of the power amplifier is connected to pin 1 of the second connector, and is connected to the signal access pin of the data acquisition card through pin 1 of the second connector to transmit the vibration signal to the data acquisition card; the second terminal of the second resistor is connected to the first terminal of the second capacitor and the first terminal of the third resistor; the second terminal of the third resistor is grounded; the second terminal of the second capacitor is connected to the output pin of the VPU chip board; pin 1 of the VPU chip board is connected to the electronic control box; and pin 2 of the second connector is grounded.

4. The apparatus according to claim 1, characterized in that, The data acquisition card includes: a signal input pin and a signal output pin; the signal input pin is connected to pin 1 of the second connector in the vibration pickup and to pin 1 of the first connector in the microphone; the signal output pin is connected to the electronic device.

5. The apparatus according to claim 1, characterized in that, The fixture also includes: a proximity sensor and an indicator light; The proximity sensor is connected to the electronic control box and is used to detect when a mobile phone is placed on the fixture and the mobile phone is in place, to activate the performance detection of the mobile phone motor, and to transmit the performance detection signal to the electronic device through the electronic control box. The indicator light is connected to the electronic device and is used to display the performance test results.

6. The apparatus according to claim 5, characterized in that, The proximity sensor includes: a third connector, a second adjustable resistor, a proximity sensor chip, and a relay; Wherein, pin 2 of the third connector is connected to a 12V power supply and is connected to the first end of the second adjustable resistor and the input end of the proximity sensor chip respectively; the third end of the second adjustable resistor is connected to the output end of the proximity sensor chip; the output end of the proximity sensor chip is connected to pin 2 of the relay, and the performance detection signal is transmitted to the electronic device through pin 3 of the relay. Pin 1 of the third connector is grounded; the ground terminal of the proximity sensor chip is grounded; and pin 1 of the relay is grounded.

7. The apparatus according to claim 1, characterized in that, The control box includes: a 12V power supply, a 5V power supply, and a 1.8V power supply; the proximity sensor is connected to the 12V power supply in the control box; the microphone is connected to the 5V power supply in the control box; and the vibration pickup is connected to the 1.8V power supply in the control box.

8. The apparatus according to claim 7, characterized in that, The electronic control box includes: a 12V DC power input terminal, a thermistor, a diode, a third capacitor, a fourth capacitor, a first electronic control chip, a fifth capacitor, a sixth capacitor, a second electronic control chip, a seventh capacitor, and an eighth capacitor. The 12V DC power input terminal is connected to the first terminal of the thermistor; the second terminal of the thermistor is connected to the first terminal of the diode; the second terminal of the diode is connected to the first terminals of the third capacitor, the fourth capacitor, and the first terminal of the first electronic control chip; the third terminal of the first electronic control chip is connected to the first terminals of the fifth capacitor, the sixth capacitor, and the second electronic control chip; the fourth and second terminals of the second electronic control chip are connected to the first terminals of the seventh capacitor, the eighth capacitor, and pin 1 of the VPU chip board in the vibration pickup. The second terminal of the third capacitor, the second terminal of the fourth capacitor, the second terminal of the fifth capacitor, the second terminal of the sixth capacitor, the second terminal of the seventh capacitor, the second terminal of the eighth capacitor, the second terminal of the first electronic control chip, and the first terminal of the second electronic control chip are respectively grounded; The 12V power supply is stepped down to 5V after passing through the first electronic control chip; the 5V power supply is stepped down to 1.8V after passing through the second electronic control chip.

9. The apparatus according to claim 1, characterized in that, It also includes a preamplifier, which is respectively disposed on the vibration pickup and the microphone, and the preamplifier amplifies the noise signal and the vibration signal respectively.

10. The apparatus according to claim 9, characterized in that, It also includes a rectifier and filter circuit, which is disposed in the electronic device, and the rectifier and filter circuit rectifies and filters the vibration signal and noise signal after they have been amplified by the preamplifier.

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