CN218647070U - Earphone charging bin testing arrangement - Google Patents

Abstract

The utility model aims at providing a with low costs, can test the charging and discharging function in earphone charging storehouse, can test the earphone charging storehouse testing arrangement of battery charge and discharge characteristic again. The utility model discloses a host computer, test controller, measurement detection module and switch switching module, switch switching module is connected with the equipment electricity that awaits measuring, test controller passes through IO extension module control switch switching module and the link switch-on of the equipment that awaits measuring, switch switching module with be connected with temperature simulation module between the IO extension module, measure detection module with temperature simulation module all passes through test controller feedback data gives the host computer. The utility model discloses be applied to electronic equipment's technical field.

Description

Earphone charging bin testing arrangement

Technical Field

The utility model discloses be applied to electronic equipment's technical field, in particular to earphone storehouse testing arrangement that charges.

Background

As a wireless answering device, the Bluetooth headset solves the problem of wiring winding for a user, and brings convenience to answering of electronic products. Because bluetooth headset adopts wireless connection, need charge to it after using a period, consequently need bluetooth headset to charge storehouse and accomodate or charge to the earphone. The bluetooth headset storehouse of charging can independently charge, the bluetooth headset storehouse is equivalent to the exclusive portable power source of wireless bluetooth headset, built-in battery provides data interfaces such as USB-C or micro USB, consequently, can directly charge through the charger, no matter whether bluetooth headset is in the battery storehouse, it can be preferential for the battery in the earphone to charge when having the earphone to insert the data line in the bluetooth headset storehouse of charging, replenish the battery in the storehouse of charging again after the earphone is full of, when the earphone does not place in the storehouse of charging, the power is the power of bluetooth headset storehouse of charging alone, just can replenish the electric energy to bluetooth headset after putting into bluetooth headset, consequently, the earphone storehouse itself contains the battery and needs external power source to charge it, also can charge to the earphone simultaneously, because its portable characteristic leads to the battery capacity can not too big, and then test power can not too big usually. If the special battery charging and discharging equipment is used for verifying and testing the earphone charging and discharging equipment, the ox knife for killing chickens seems to have a small size, the price is high, the practicability is not strong, and meanwhile, the single testing equipment is difficult to be used for completing verification and testing of the charging and discharging electric functions and the battery charging and discharging characteristics of the earphone charging bin. Therefore, it is necessary to provide a testing device for a charging chamber of an earphone, which is low in cost and can test the charging and discharging functions of the charging chamber of the earphone and the charging and discharging characteristics of a battery.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome prior art not enough, provide one kind with low costs, can test the charging and discharging function in earphone charging storehouse, can test battery charge and discharge characteristic's earphone charging storehouse testing arrangement again.

The utility model adopts the technical proposal that: the utility model discloses a host computer, test controller, measurement detection module and switch module, the switch module is connected with the equipment electricity that awaits measuring, test controller passes through IO expansion module control the switch module is put through with the link of the equipment that awaits measuring, test controller passes through measure detection module and temperature simulation module and treat equipment testing to with test data send to the host computer carries out analysis processes.

According to the scheme, the upper computer serves as a master control system of the earphone charging bin testing device, the testing controller serves as a control core of the earphone charging bin testing device, all testing operations are completed by the testing controller, and the functions of the earphone charging bin testing device are summarized into a charging test of a rechargeable battery, a discharging test of the rechargeable battery and a charging and discharging circuit function test of the earphone charging bin; the switch switching module is connected with the equipment to be tested; the test controller completes the test of the equipment to be tested; the temperature simulation module is used for simulating different temperatures; the switch switching module is controlled by the test controller through the IO expansion module; the IO expansion module controls the switch switching module to be connected with the equipment to be tested after the I2C serial data of the test controller are output in parallel, controls the temperature simulation module and the measurement detection module to complete the test of the equipment to be tested, and sends test data to the upper computer for displaying and analyzing. The earphone charging bin testing device is low in cost, is built by using a conventional circuit, and does not need expensive drilling devices; the compatibility is good, and the charging and discharging functions of the earphone charging bin can be tested, and the charging and discharging characteristics of the battery can also be tested.

One preferred scheme is, the temperature simulation module is including the resistance of the different resistances of a plurality of that connect in parallel, a plurality of the one end of resistance all is connected with electronic switch, and the other end passes through the negative pole of await measuring equipment is connected to switch module, IO expansion module with electronic switch connects, a plurality of resistance all with switch module establishes ties, a plurality of resistance is through electronic switch ground connection, test controller is through control temperature simulation module pulls down resistance to GND, and then simulates the charge-discharge data of the product that await measuring equipment connects under the temperature state of difference.

According to the scheme, the test controller sends the control signal to the temperature simulation module through the IO expansion module, the resistors are grounded through the electronic switch after being connected in parallel, the temperature simulation module is connected with the equipment to be tested through the switch switching module, and then charge and discharge data of a product connected with the equipment to be tested under different temperature states are simulated, so that the test data are closer to the actual situation.

One preferred scheme is, measure the detection module including the subassembly that charges, switch over module includes the relay group, the relay group with the subassembly electricity that charges is connected, and the equipment under test is including rechargeable battery, IO expansion module sends control signal and gives switch over module, the relay group carries out the link switch-on of POWER port with the equipment under test, test controller passes through SPI control the subassembly that charges carries out the charging test to rechargeable battery, test controller is through control temperature simulation module pulls down resistance to GND, and then the simulation rechargeable battery data of charging under the temperature state of difference, test controller passes through UART or the different charging voltage of I2C control equipment under test output, and then the charging data of simulation rechargeable battery under different input voltage state.

It can be seen by above-mentioned scheme that SPI is the serial peripheral interface, the UART is general asynchronous transceiver, I2C is the integrated circuit bus, the subassembly that charges does earphone charging bin testing arrangement provides adjustable output voltage and accomplishes the test of charging to rechargeable battery, the subassembly that charges passes through IO expansion module control the relay group will POWER port and equipment link switch-on that awaits measuring, then test controller passes through SPI control the subassembly that charges treats equipment and charge the test, test controller is through control temperature simulation module pull down resistance to GND, and then simulation rechargeable battery is the data of charging under the different temperature state, also can adjust the output voltage of subassembly that charges or pass through UART or I2C control equipment that awaits measuring outputs different charging voltages, and then the simulation is at the charging data of rechargeable battery under the different input voltage state.

One preferred scheme is, measure the detection module still including the subassembly and the measuring subassembly that discharge, switch over module still includes electronic switch group, test controller in proper order with the measuring subassembly the subassembly that discharges and electronic switch group electricity is connected, IO expansion module sends control signal for switch over module, electronic switch group carries out the link switch-on with the equipment that awaits measuring, test controller passes through SPI control the subassembly that discharges tests rechargeable battery discharging, passes through simultaneously the measuring subassembly acquires rechargeable battery's voltage, and then adjusts discharge current to reach the discharge data who acquires rechargeable battery, test controller is through control temperature simulation module pulls down resistance to GND, and then the discharge data of simulation rechargeable battery under the temperature state of difference.

According to the scheme, the discharging assembly comprises an electronic load module, the discharging assembly provides adjustable discharging current for the earphone charging bin testing device to complete discharging testing of the rechargeable battery, the testing controller controls the electronic switch group to connect the electronic load module and a device to be tested through the IO expansion module, the testing controller controls the discharging assembly to perform discharging testing on the device to be tested through the SPI, meanwhile, the voltage of the rechargeable battery is obtained through the measuring assembly, and then the discharging current is timely adjusted to obtain discharging data of the rechargeable battery; and the test controller controls the temperature simulation module to pull down the resistor to GND so as to simulate the discharge data of the rechargeable battery in different temperature states.

One preferred scheme is, measure detection module still includes the battery simulator, the battery simulator with the relay group electricity is connected, and the equipment that awaits measuring is still including earphone charging storehouse, IO expansion module sends control signal for switch switching module, electronic switch group carries out the link switch-on of POWER port and ISO _ POWER port with the equipment that awaits measuring, test controller passes through SPI control the battery simulator carries out charging and discharging circuit function test to earphone charging storehouse, test controller passes through SPI control the corresponding voltage of charging assembly output, test controller passes through UART or I2C makes the equipment that awaits measuring output corresponding voltage, and then simulation charging voltage and charging current, test controller control battery simulator output fixed voltage, and then the different states of simulation rechargeable battery, test controller is through controlling temperature simulation module pulls down resistance to GND, and then simulation rechargeable battery charges data under the different temperature states.

According to the scheme, the battery simulator simulates the function of the rechargeable battery, can also draw current when discharging outwards, and completes the test of the charging and discharging circuit of the equipment to be tested, and the charging and discharging test of the rechargeable battery is verified under the condition that the equipment to be tested has the rechargeable battery, or the charging and discharging test of the rechargeable battery is independently performed. The function test of the charging and discharging circuit is to test the charging and discharging circuit of the earphone charging bin, and the other isolation power supply is used for simulating the rechargeable battery to verify the function of the charging and discharging circuit in the state. The test controller passes through IO expansion module control relay group carries out the link switch-on with the equipment that awaits measuring respectively with POWER port and ISO _ POWER port, then the test controller passes through SPI control the corresponding voltage of charging assembly output, or pass through UART or I2C makes the equipment that awaits measuring output corresponding voltage, and then simulation charging voltage and charging current, control battery simulator output fixed voltage simulation rechargeable battery's different states, the test controller is through control the temperature simulation module is pulled down resistance to GND, and then simulation rechargeable battery is the data of charging under the temperature state of difference. The charging assembly, the discharging assembly, the battery simulator and the earphone charging bin testing device can acquire charging and discharging data of the rechargeable battery under different voltage and temperature states, can acquire charging and discharging data of the charging and discharging circuit under different states of the rechargeable battery, and then can acquire an accurate charging and discharging curve graph of the earphone charging bin by acquiring a large amount of the data.

In a preferred embodiment, the measurement and detection module further includes a power module, and the test controller, the IO extension module, and the switch switching module are electrically connected to the power module.

According to the scheme, the power module supplies power to the parts of the earphone charging bin testing device except the upper computer.

Drawings

FIG. 1 is a schematic diagram of the present invention;

fig. 2 is a schematic diagram of the operation of the switching module 4;

fig. 3 is a working schematic diagram of the measurement detection module 3;

fig. 4 is an operational schematic diagram of the power module 10;

fig. 5 is a working schematic diagram of the IO extension module 6;

fig. 6 is an operational schematic diagram of the test controller 2;

fig. 7 is a schematic diagram of the operation of the temperature simulation module 7.

Detailed Description

As shown in fig. 1 to 7, in this embodiment, the utility model discloses an upper computer 1, test controller 2, measurement detection module 3 and switch switching module 4, switch switching module 4 is connected with 5 electricity of the equipment that awaits measuring, test controller 2 passes through IO expansion module 6 control switch switching module 4 and 5's of the equipment that awaits measuring link switch-on, test controller 2 passes through measurement detection module 3 and temperature simulation module 7 test equipment 5 of treating, and with test data send to upper computer 1 carries out analysis processes.

In this embodiment, temperature simulation module 7 is including the resistance R of the different resistances of a plurality of that connect in parallel, a plurality of resistance R's one end all is connected with electronic switch, and the other end passes through switch module 4 connects the negative pole of equipment 5 that awaits measuring, IO expansion module 6 with electronic switch connects, a plurality of resistance R all with switch module 4 establishes ties, a plurality of resistance R is through electronic switch ground connection, test controller 2 is through control temperature simulation module 7 pulls down resistance R to GND, and then the charge-discharge data of the product that simulation equipment 5 that awaits measuring connects under the temperature state of difference.

In this embodiment, measurement detection module 3 includes charging assembly POWER, switch module 4 includes relay group 8, relay group 8 with charging assembly POWER electricity is connected, and the equipment 5 that awaits measuring is including rechargeable battery, IO expansion module 6 sends control signal for switch module 4, relay group 8 carries out the link switch-on of POWER port with the equipment 5 that awaits measuring, test controller 2 passes through SPI control charging assembly POWER tests charging battery, test controller 2 is through control temperature simulation module 7 pull down resistance R to GND, and then simulation rechargeable battery is the charging data under the temperature state of difference, test controller 2 passes through UART or I2C control equipment 5 that awaits measuring outputs different charging voltage, and then the charging data of simulation rechargeable battery under different input voltage state.

In this embodiment, the measurement detection module 3 further includes a discharge component POWER-2 and a measurement component DMM, the switch switching module 4 further includes an electronic switch group 9, the test controller 2 is sequentially electrically connected to the measurement component DMM, the discharge component POWER-2 and the electronic switch group 9, the IO extension module 6 sends a control signal to the switch switching module 4, the electronic switch group 9 is connected to the device to be tested 5 through a link, the test controller 2 controls the discharge component POWER-2 to perform a discharge test on the rechargeable battery through the SPI, and simultaneously obtains the voltage of the rechargeable battery through the measurement component DMM to adjust the discharge current so as to obtain the discharge data of the rechargeable battery, and the test controller 2 controls the temperature simulation module 7 to pull down the resistor R to GND to simulate the discharge data of the rechargeable battery in different temperature states.

In this embodiment, the measurement and detection module 3 further includes a battery simulator ISO _ POWER, the battery simulator ISO _ POWER is electrically connected to the relay set 8, the device 5 to be tested further includes an earphone charging bin, the IO extension module 6 sends a control signal to the switch switching module 4, the electronic switch set 9 and the device 5 to be tested perform link connection of a POWER port and an ISO _ POWER port, the test controller 2 controls the battery simulator ISO _ POWER to perform a charging and discharging circuit function test on the earphone charging bin through the SPI, the test controller 2 controls the charging component POWER through the SPI to output corresponding voltage, the test controller 2 enables the device 5 to be tested to output corresponding voltage through the UART or the I2C to simulate charging voltage and charging current, the test controller 2 controls the battery simulator ISO _ POWER to output fixed voltage to simulate different states of the charging battery, and the test controller 2 controls the temperature simulation module 7 to pull down the resistor R to GND so as to simulate charging data of the charging battery in different temperature states.

In this embodiment, the measurement detection module 3 further includes a power module 10, and the test controller 2, the IO extension module 6, and the switch switching module 4 are all electrically connected to the power module 10.

In this embodiment, the testing apparatus for the earphone charging bin further includes a calibration interface, where the calibration interface is divided into two paths, and one path is connected between the device to be tested 5 and the charging assembly POWER; the other path of the test equipment is connected between the test equipment 5 and the battery simulator ISO _ POWER, the calibration interface provides a calibration interface for voltage and current measurement of the earphone charging bin test device, the earphone charging bin test device can be calibrated by using external voltage and current detection equipment, and calibration coefficients are stored, so that the measurement precision of the earphone charging bin test device is ensured.

In this embodiment, the test controller 2 includes an MCU, a UART switch, a USB interface and an STP interface, the USB interface is connected to the upper computer 1 through a USB cable, the STP interface is connected to the upper computer 1 through a network port, the measurement detection module 3 is connected to the MCU through the SPI, the IO extension module 6 is connected to the MCU through the I2C, the USB interface is connected to a converter, an output end of the converter is connected to the MCU and the UART switch, the converter is configured to convert a USB signal into a UART signal, the UART switch is configured to detect whether the upper computer 1 passes through the MCU during communication with the device under test 5, the MCU is electrically connected to an EEPROM, and the EEPROM is configured to store calibration data of the earphone charging chamber test apparatus.

The utility model discloses a theory of operation:

the charging component controls the relay group to connect the POWER port and a device to be tested through the IO expansion module, then the test controller controls the charging component to perform charging test on the device to be tested through the SPI, the test controller controls the temperature simulation module to pull down the resistor to GND so as to simulate charging data of a rechargeable battery in different temperature states, and also can adjust the output voltage of the charging component or control the device to be tested to output different charging voltages through the UART or the I2C so as to simulate charging data of the rechargeable battery in different input voltage states;

the test controller controls the electronic switch group to connect the electronic load module and the equipment link to be tested through the IO expansion module, controls the discharge component to perform discharge test on the equipment to be tested through the SPI, simultaneously obtains the voltage of the rechargeable battery through the measurement component, and timely adjusts the discharge current to obtain the discharge data of the rechargeable battery; similarly, the test controller controls the temperature simulation module to pull down the resistor to GND, so that discharge data of the rechargeable battery in different temperature states are simulated;

the test controller passes through IO expansion module control relay group carries out the link switch-on with the equipment that awaits measuring respectively with POWER port and ISO _ POWER port, then the test controller passes through SPI control the corresponding voltage of charging assembly output, or pass through UART or I2C makes the equipment that awaits measuring output corresponding voltage, and then simulation charging voltage and charging current, control battery simulator output fixed voltage simulation rechargeable battery's different states, the test controller is through control the temperature simulation module is pulled down resistance to GND, and then simulation rechargeable battery is the data of charging under the temperature state of difference. The charging assembly, the discharging assembly, the battery simulator and the earphone charging bin testing device can acquire charging and discharging data of the rechargeable battery under different voltage and temperature states, can acquire charging and discharging data of the charging and discharging circuit under different states of the rechargeable battery, and then can acquire an accurate charging and discharging curve graph of the earphone charging bin by acquiring a large amount of the data.

Claims (8)

1. The utility model provides an earphone storehouse testing arrangement that charges which characterized in that: it includes host computer (1), test controller (2), measures detection module (3) and switch switching module (4), switch switching module (4) is connected with equipment to be tested (5) electricity, test controller (2) is through IO expansion module (6) control switch switching module (4) and the link switch-on of equipment to be tested (5), switch switching module (4) with be connected with temperature simulation module (7) between IO expansion module (6), measure detection module (3) with temperature simulation module (7) all pass through test controller (2) feedback data gives host computer (1).

2. The testing device of claim 1, wherein: the temperature simulation module (7) comprises a plurality of parallel resistors (R) with different resistances, an electronic switch is connected to one end of each resistor (R), the other end of each resistor (R) is connected with the negative electrode of the equipment to be tested (5) through the switch switching module (4), the IO expansion module (6) is connected with the electronic switch, and the resistors (R) are connected with the switch switching module (4) in series.

3. The testing device of claim 2, wherein: measure detection module (3) including charging assembly (POWER), switch module (4) include relay group (8), relay group (8) with charging assembly (POWER) electricity is connected, and equipment to be tested (5) are including rechargeable battery, IO expansion module (6) send control signal give relay group (8), test controller (2) through SPI with charging assembly (POWER) communication is connected.

4. The testing device of claim 3, wherein: the measurement detection module (3) further comprises a discharge assembly (POWER-2) and a measurement assembly (DMM), the switch switching module (4) further comprises an electronic switch group (9), the test controller (2) sequentially communicates with the measurement assembly (DMM), the discharge assembly (POWER-2) and the electronic switch group (9) to be electrically connected, the IO expansion module (6) sends a control signal to the relay group (8), and the test controller (2) is connected with the discharge assembly (POWER-2) through the SPI.

5. The testing device of claim 4, wherein: measure detection module (3) and still include battery simulator (ISO _ POWER), battery simulator (ISO _ POWER) with relay group (8) electricity is connected, and equipment to be tested (5) are still including earphone storehouse of charging, IO expansion module (6) send control signal for relay group (8), test controller (2) pass through SPI with battery simulator (ISO _ POWER) communication is connected.

6. The testing device of claim 1, wherein: the measurement detection module (3) further comprises a power module (10), and the test controller (2), the IO expansion module (6) and the switch switching module (4) are electrically connected with the power module (10).

7. The earphone charging bin testing device of claim 5, wherein: the testing device for the earphone charging bin further comprises a calibration interface, wherein the calibration interface is divided into two paths, one path is connected between equipment to be tested (5) and the charging assembly (POWER), and the other path is connected between the equipment to be tested (5) and the battery simulator (ISO _ POWER).

8. The earphone charging bin testing device of claim 3, wherein: test controller (2) include MCU, UART switch, USB interface and STP interface, the USB interface pass through the USB line with host computer (1) are connected, the STP interface pass through the net gape with host computer (1) are connected, measure detection module (3) through SPI with MCU connects, IO expansion module (6) through I2C with MCU connects, the USB interface connection has the converter, the output of converter respectively with MCU with the UART switch is connected.

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