CN220730360U - Burning test equipment and burning test system - Google Patents

Abstract

The application discloses burn test equipment and burn test system, including controlling means, burn circuit, first communication circuit and voltage detection circuit. The control device is provided with a signal access end for accessing the burning trigger signal; the burning circuit is electrically connected with the control device and the PCB to be tested; when the control device receives the burning trigger signal, the burning circuit is controlled to work, the burning circuit is controlled to output a burning state signal to the control device, and the working state of the burning circuit is controlled according to the burning state signal. The first communication circuit is in communication connection with the control device and the PCB to be tested, and is used for accessing the test signal; the voltage detection circuit is electrically connected with the control device; the control device controls the voltage detection circuit to detect the test signal according to the burning state signal and controls the voltage detection circuit to output a detection result signal to the control device. The utility model aims to improve the universality of burning test equipment and the efficiency of burning test.

Description

Burning test equipment and burning test system

Technical Field

The present utility model relates to the field of burn-in testing technologies, and in particular, to a burn-in testing device and a burn-in testing system.

Background

In order to improve the production efficiency of the electronic processing industry, the PCBA is required to be subjected to software burning and testing in actual production, and because the PCBA has a plurality of chip types and a plurality of PCBA types, different burning test equipment is often required, a whole set of burning test equipment is required to be purchased and manufactured for the PCBs with different models, the cost of the burning test equipment is high, the universality of the burning test equipment is low, the use is inconvenient, and the burning test efficiency is further reduced.

Disclosure of Invention

The utility model mainly aims to provide a burning test device, which aims to improve the convenience of the burning test device.

In order to achieve the above object, the present utility model provides a burn-in test apparatus, comprising:

the control device is provided with a signal access end for accessing the burning trigger signal;

the burning circuit is electrically connected with the control device and the PCB to be tested respectively;

the control device is used for controlling the recording circuit to work when receiving the recording trigger signal, and also used for controlling the recording circuit to output a recording state signal to the control device and controlling the working state of the recording circuit according to the recording state signal;

the first communication circuit is respectively in communication connection with the control device and the PCB to be tested, and is used for accessing the test signal;

the voltage detection circuit is electrically connected with the control device;

the control device is further configured to control the voltage detection circuit to detect the test signal according to the recording status signal, and to control the voltage detection circuit to output a detection result signal to the control device.

Optionally, the burning circuit includes: a main control circuit and a storage circuit; the storage circuit is electrically connected with the main control circuit and is used for storing a burning program.

Optionally, the burn-in test apparatus further includes:

a power module;

the first end of the switch circuit is electrically connected with the power module, and the second end of the switch circuit is electrically connected with the PCB to be tested;

the control device is used for controlling the switching circuit to turn on or off a channel between the power module and the PCB to be tested.

Optionally, the burn-in test apparatus further includes:

the input end of the voltage conversion circuit is electrically connected with the power supply module, the controlled end of the voltage conversion circuit is electrically connected with the control device, and the output end of the voltage conversion circuit is electrically connected with the burning circuit, the first communication circuit and the voltage detection circuit respectively;

the voltage conversion circuit is used for converting the output voltage of the power supply module into the power supply voltage required by the burning circuit, the first communication circuit and the voltage detection circuit.

Optionally, the burn-in test apparatus further includes:

the trigger circuit is electrically connected with the control device,

the trigger circuit is used for outputting a trigger signal through the output end of the trigger circuit when triggered by a user;

the control device is used for receiving the trigger signal and controlling the power supply module to be in a working state according to the trigger signal.

Optionally, the burn-in test apparatus further includes:

the second communication circuit is electrically connected with the control device;

a display module;

the control device is used for outputting the burning state signal and the detection result signal to the display module through the second communication circuit.

Optionally, the burn-in test apparatus further includes:

the storage module is electrically connected with the control device;

the control device is used for outputting the burning state signal and the detection result signal to the storage module through the second communication circuit.

The utility model also provides a burning test system, which comprises the burning test equipment.

Optionally, the burn-in test system further includes:

the tool clamp modules are used for being electrically connected with the burning test equipment;

the fixture module comprises a needle bed for placing the PCB to be tested, and when the PCB to be tested is placed on the needle bed, each probe of the needle bed is electrically connected with the test points on the PCB to be tested in a one-to-one correspondence mode.

The utility model provides burning test equipment which comprises a control device, a burning circuit, a first communication circuit and a voltage detection circuit. The control device is provided with a signal access end for accessing the burning trigger signal; the burning circuit is respectively and electrically connected with the control device and the PCB to be tested; the control device is used for controlling the recording circuit to work when receiving the recording trigger signal, and is also used for controlling the recording circuit to output a recording state signal to the control device and controlling the working state of the recording circuit according to the recording state signal. The first communication circuit is respectively in communication connection with the control device and the PCB to be tested, and is used for accessing the test signal; the voltage detection circuit is electrically connected with the control device; the control device controls the voltage detection circuit to detect the test signal according to the burning state signal, and controls the voltage detection circuit to output a detection result signal to the control device.

In practical application, when the PCB is subjected to the burning test, only the PCB to be tested is required to be connected with the test burning equipment, and when the control device receives the burning trigger signal, the burning circuit is controlled to carry out program burning on the PCB to be tested, the burning circuit is controlled to output a burning state signal to the control device, and the working state of the burning circuit is controlled according to the burning state signal. Namely, the control device determines whether the PCB to be tested needs to be burned again according to the burning state signal output by the burning circuit. If the control device determines that the burning is completed according to the burning state signal without controlling the burning circuit to work, it can be understood that the PCB to be tested drives the motor to act through the burning program after the burning is completed, and because the control device establishes communication connection with the PCB to be tested through the first communication circuit, the control device outputs a control signal to the PCB to be tested after the burning is completed, so that the Hall sensor on the PCB to be tested starts to detect the voltage of the motor, and outputs a test signal to the control device after the detection is completed, and after the control device receives the test signal accessed by the first communication circuit, the control voltage detection circuit detects the test signal and outputs a detection result signal to the control device. The control device judges whether the PCB to be tested is qualified or not through the detection result signal. For example, comparing the detection result signal with a preset voltage range set in advance by a research and development personnel, if the detection result signal is within the preset voltage range, the PCB to be tested is qualified, and if the detection result signal is not within the preset voltage range, the PCB to be tested is unqualified. Therefore, the burning test equipment can carry out burning test on different PCBs to be tested, namely, the same set of burning test equipment is used for realizing the burning test on different PCBs, the using convenience of the burning test equipment is improved, and the burning test efficiency of the PCBs to be tested is further improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic circuit diagram of a burn-in test apparatus according to an embodiment of the present utility model;

FIG. 2 is a schematic circuit diagram of another embodiment of the burn-in test apparatus according to the present utility model;

FIG. 3 is a schematic circuit diagram of a burn-in test apparatus according to another embodiment of the present utility model;

FIG. 4 is a schematic circuit diagram of a burn-in test apparatus according to another embodiment of the present utility model;

FIG. 5 is a schematic circuit diagram of a burn-in test apparatus according to another embodiment of the present utility model;

FIG. 6 is a schematic circuit diagram of a burn-in test apparatus according to another embodiment of the present utility model.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				10	Control device	20	Burning circuit
21	Main control circuit	22	Memory circuit
				30	First communication circuit	40	Voltage detection circuit
50	Power supply module	60	Switching circuit
				70	Voltage conversion circuit	80	Trigger circuit
90	Second communication circuit	100	Display module
				110	Memory module

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The present utility model proposes a burn-in test apparatus, referring to fig. 1, in an embodiment of the present utility model, the burn-in test apparatus includes:

the control device 10, the said control device 10 has signal access end used for switching in the trigger signal of burning;

the burning circuit 20 is electrically connected with the control device 10 and the PCB to be tested respectively;

the control device 10 is configured to control the recording circuit 20 to operate when receiving a recording trigger signal, and further configured to control the recording circuit 20 to output a recording status signal to the control device 10, and control an operating state of the recording circuit 20 according to the recording status signal.

The first communication circuit 30 is respectively in communication connection with the control device 10 and the PCB to be tested, and the first communication circuit 30 is used for accessing test signals;

a voltage detection circuit 40, the voltage detection circuit 40 being electrically connected to the control device 10;

the control device 10 is further configured to control the voltage detection circuit 40 to detect the test signal according to the recording status signal, and to control the voltage detection circuit 40 to output a detection result signal to the control device 10.

In this embodiment, the control device 10 may be implemented by an intelligent terminal, such as a computer, or by a main controller, such as an MCU, a DSP (Digital Signal Process, digital signal processing Chip), an FPGA (Field Programmable Gate Array, programmable gate array Chip), a PLC, an SOC (System On Chip), or the like. The burning circuit 20 may be implemented by a burning circuit 20 comprising a controller and a memory, wherein the controller may be implemented by the controller, and the memory may be implemented by a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or the like. The first communication circuit 30 may be implemented by using a wired communication module, for example, a LIN communication module, a CAN communication module, an RS485 transceiver chip, etc., and selects a corresponding bus type according to the communication module. The first communication circuit 30 may also be implemented using a wireless communication module, such as a WiFi module, a bluetooth communication module, a 4G/5G module, etc. The voltage detection circuit 40 may be implemented using a voltage detection chip, a voltage division circuit, or the like.

Specifically, when the burn-in test device of the present utility model is used to perform a burn-in test on a PCB to be tested, a user needs to first connect the PCB to be tested with the burn-in test device, and when the control device 10 receives a burn-in trigger signal, control the burn-in circuit 20 to perform program burn-in on the PCB to be tested, control the burn-in circuit 20 to output a burn-in status signal to the control device 10, and control the working status of the burn-in circuit 20 according to the burn-in status signal. That is, the control device 10 determines whether to control the burning circuit 20 to burn the PCB to be tested again according to the burning status signal. The burning status signal includes information such as a type, a test temperature, and an operation time of the PCB to be tested, for example, a developer sets the burning time required by different types of PCBs to be tested in advance, and when the burning time of the PCB to be tested of the type reaches a preset burning time, the burning is completed, and the control device 10 does not need to control the continuous work of the burning. In addition, the burning trigger signal may be a burning trigger signal triggered by a user operating a trigger device such as a button or a button of the burning test device of the present utility model, or may be a burning trigger signal output by the user by operating an external terminal in communication with the burning test device.

It should be noted that, the PCB to be tested can be placed in the fixture module, the burn-in test device has an interface for accessing the data line electrically connected with the fixture module, the fixture module includes a needle bed for placing the PCB to be tested, each probe of the needle bed is electrically connected with the test point of the PCB to be tested in one-to-one correspondence, and the burn-in test device can be electrically connected with the fixture module through the data line. The PCB to be tested is burnt and can drive the motor to act through a burning program after the burning is completed, and the PCB to be tested is provided with a Hall sensor for detecting the voltage of the motor. Because the control device 10 establishes communication connection with the PCB to be tested through the first communication circuit 30, after the burning is completed, the control device 10 outputs a control signal to the PCB to be tested, so that the hall sensor on the PCB to be tested starts to detect the voltage of the motor, and outputs a test signal to the control device 10 after the detection is completed, and after the control device 10 receives the test signal accessed by the first communication circuit 30, the control device 10 controls the voltage detection circuit 40 to detect the test signal and output a detection result signal to the control device 10. In addition, the voltage range of the PCB to be tested with different types after the motor is driven by the burning program can be set in advance by a research and development staff in the research and development process, so that a preset voltage range table is formed. If the detection result signal output by the voltage detection circuit 40 is within the preset voltage range, the PCB to be tested is qualified, and if the detection result signal is not within the preset voltage range, the PCB to be tested is unqualified. It will be appreciated that the voltage detection circuit 40 and the control device 10 may be integrated into one chip to reduce the wiring area of the circuit board, thereby reducing the volume of the burn-in test apparatus of the present utility model.

Through the arrangement, if different PCBs to be tested are subjected to the burning test, the burning test process of the PCBs to be tested can be realized by only replacing the fixture module with the needle bed and establishing connection between the burning test equipment and the fixture module. The same set of burning test equipment can realize burning test on different PCBs, so that the using convenience of the burning test equipment is improved, and the efficiency of the PCB burning test to be tested is further improved.

The utility model provides a burning test device, which comprises a control device 10, a burning circuit 20, a first communication circuit 30 and a voltage detection circuit 40. The control device 10 is provided with a signal access end for accessing a burning trigger signal; the burning circuit 20 is respectively and electrically connected with the control device 10 and the PCB to be tested; the control device 10 is configured to control the recording circuit 20 to operate when receiving the recording trigger signal, and is also configured to control the recording circuit 20 to output a recording status signal to the control device 10, and to control an operating state of the recording circuit 20 according to the recording status signal. The first communication circuit 30 is respectively in communication connection with the control device 10 and the PCB to be tested, and the first communication circuit 30 is used for accessing the test signal; the voltage detection circuit 40 is electrically connected to the control device 10; the control device 10 controls the voltage detection circuit 40 to detect the test signal according to the recording status signal, and controls the voltage detection circuit 40 to output the detection result signal to the control device.

In practical application, when the PCB is tested by the programming test, only the PCB to be tested is required to be connected with the test programming equipment, and when the control device 10 receives the programming trigger signal, the programming circuit 20 is controlled to perform program programming on the PCB to be tested, the programming circuit 20 is controlled to output the programming state signal to the control device 10, and the working state of the programming circuit 20 is controlled according to the programming state signal. That is, the control device 10 determines whether to re-burn the PCB to be tested according to the burn status signal output by the burn circuit 20. If the control device 10 determines that the burning is completed according to the burning status signal without controlling the burning circuit 20 to operate, it can be understood that the PCB to be tested drives the motor to operate through the burning program after the burning is completed, because the control device 10 establishes communication connection with the PCB to be tested through the first communication circuit 30, after the burning is completed, the control device 10 outputs a control signal to the PCB to be tested, so that the hall sensor on the PCB to be tested starts to detect the voltage of the motor, and outputs a test signal to the control device 10 after the detection is completed, and after the control device 10 receives the test signal accessed by the first communication circuit 30, the control voltage detection circuit 40 detects the test signal and outputs a detection result signal to the control device. The control device 10 judges whether the PCB to be tested is qualified or not according to the detection result signal. For example, comparing the detection result signal with a preset voltage range set in advance by a research and development personnel, if the detection result signal is within the preset voltage range, the PCB to be tested is qualified, and if the detection result signal is not within the preset voltage range, the PCB to be tested is unqualified. Therefore, the burning test equipment can carry out burning test on different PCBs to be tested, namely, the same set of burning test equipment is used for realizing the burning test on different PCBs, the using convenience of the burning test equipment is improved, and the burning test efficiency of the PCBs to be tested is further improved.

It will be appreciated that in an embodiment, referring to fig. 6, the burn-in test apparatus further comprises:

a second communication circuit 90, wherein the second communication circuit 90 is electrically connected with the control device 10;

a display module 100;

the control device 10 is configured to output the recording status signal and the detection result signal to the display module 100 via the second communication circuit 90.

In this embodiment, in combination with the above embodiment, the second communication circuit 90 may be implemented using the communication module described in the above embodiment. The display module 100 may be implemented using a display screen, such as an LCD screen, an LED screen, an OLED screen, and the like.

Specifically, in combination with the above embodiment, when the control device 10 receives the programming trigger signal, the programming circuit 20 is controlled to perform program programming on the PCB to be tested, the programming circuit 20 is controlled to output the programming status signal to the control device 10, and the working status of the programming circuit 20 is controlled according to the programming status signal. The control device 10 receives the recording status signal and outputs the signal to the display module 100 via the second communication circuit 90, and in addition, after the recording is completed, the control device 10 controls the voltage detection circuit 40 to detect the voltage signal on the PCB to be tested via the first communication circuit 30, and controls the voltage detection circuit 40 to output the detection result signal to the control device 10. Therefore, the user can check the burning status signal through the display module 100 to judge whether the burning is finished, and can check the detection result signal through the display module 100 to judge whether the PCB is qualified.

In order to reduce the possibility of disqualification of the PCB to be tested caused by error in the burning process, when the user sees that the detection result signal is not within the preset voltage range through the display module 100, the user may operate a triggering device such as a button or a button of the burning test device or operate an external terminal in communication connection with the burning test device to output the burning triggering signal. The control device 10 receives the burning trigger signal to perform secondary burning on the PCB to be tested, if the detection result signal of the voltage detection circuit 40 is still not within the preset voltage range after the burning is completed, it can determine that the PCB to be tested is unqualified, and if the detection result signal is within the preset voltage range, it indicates that the first burning process has errors, so that the accuracy of the detection result signal can be improved, and the situation that the qualified PCB is misjudged as the unqualified PCB can be avoided, thereby reducing the cost.

The display module 100 can enable a user to directly see the burning state signal and the detection result signal, so that the intuitiveness of the burning state signal and the detection result signal is improved, and the reliability and the convenience of the user of the burning test equipment are further improved.

In another embodiment of the present utility model, referring to fig. 2, the burning circuit 20 includes: a main control circuit 21 and a memory circuit 22; the memory circuit 22 is electrically connected to the main control circuit 21, and is used for storing a programming program.

In this embodiment, the main control circuit 21 may be implemented using the main controller described in the above embodiment. The memory circuit 22 may be implemented using a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or the like.

Specifically, the user can write the programming program into the storage circuit 22 in advance through the external terminal, and when the user uses the programming test device to perform the programming test on the PCB to be tested, the main control circuit 21 controls the storage circuit 22 to output the programming program under the control of the control device 10 so as to perform the programming on the PCB to be tested. It should be noted that in the actual production process, the same burning program may be used to burn different PCB boards, so that the multiple printed PCB boards after being burned have the same function. In addition, if the PCB to be tested with different functions is burned, the burning program in the storage circuit 22 is only required to be changed in advance through the external terminal, and a whole set of burning test equipment is not required to be replaced.

Through the setting, the same set of burning test equipment is used, the burning test requirements of different PCBs to be tested can be met, and the burning program can be changed by combining an external terminal, so that the PCBs to be tested have different functions, the using convenience of the burning test equipment is improved, and the burning test efficiency of the PCBs to be tested is further improved.

In an embodiment of the present utility model, referring to fig. 3 and 4, the burn-in test apparatus further includes:

a power module 50;

the first end of the switch circuit 60 is electrically connected with the power module 50, and the second end of the switch circuit 60 is electrically connected with the PCB to be tested;

the control device 10 is configured to control the switch circuit 60 to turn on or off a channel between the power module 50 and the PCB to be tested.

The burn-in test apparatus further includes:

the input end of the voltage conversion circuit 70 is electrically connected with the power module 50, the controlled end of the voltage conversion circuit 70 is electrically connected with the control device 10, and the output end of the voltage conversion circuit 70 is electrically connected with the burning circuit 20, the first communication circuit 30 and the voltage detection circuit 40 respectively;

the voltage conversion circuit 70 is configured to convert an output voltage of the power module 50 into a supply voltage required by the burning circuit 20, the first communication circuit 30, and the voltage detection circuit 40.

In this embodiment, the power module 50 may be implemented by a lithium ion battery, a lead-acid battery, or the like, and the switching circuit 60 may be implemented by a switching device such as a relay or a contactor, or by a switching tube such as a MOS tube, an IGBT tube, a thyristor, or a triode. The voltage conversion circuit 70 may be implemented by at least one of a switching transistor, an inverter, a rectifier, a filter circuit, a step-up and step-down voltage circuit, or by a voltage conversion chip.

Specifically, in combination with the above embodiment, when the burn-in test device of the present utility model is used to perform a burn-in test on a PCB to be tested, the control device 10 controls the switch circuit 60 to conduct a channel between the power module 50 and the PCB to be tested when receiving a burn-in trigger signal, so that the power module 50 supplies power to the PCB to be tested, and the control device 10 simultaneously controls the voltage conversion circuit 70 to operate so as to convert the output voltage of the power module 50 into a preset power supply voltage required by the burn-in circuit 20, the first communication circuit 30 and the voltage detection circuit 40. The output voltage of the power module 50 can directly supply power to the PCB to be tested, the output voltage is about 12V, and the preset power supply voltage is about 5V.

In this embodiment, the switching circuit 60 is configured to control the channel between the power module 50 and the PCB to be tested, and the power module 50 only needs to be used as the power supply of the PCB to be tested when the burn-in test is performed on the PCB to be tested. In addition, the voltage conversion circuit 70 is configured to convert the output voltage of the power module 50 into the power supply voltage required by the burning circuit 20, the control device 10, the first communication circuit 30 and the voltage detection circuit 40 in the burning test device, so that the burning test device can work normally, and the reliability of the burning test device is improved.

It can be appreciated that, as the service time increases, the power of the power module 50 is continuously consumed, which affects the service life of the power module 50 and thus the normal operation of the burn-in test equipment.

To this end, in an embodiment of the present utility model, referring to fig. 5, the burn-in test apparatus further includes:

the trigger circuit 80 is electrically connected with the control device 10, and the trigger circuit 80 is used for outputting a trigger signal through an output end of the trigger circuit 80 when triggered by a user;

the control device 10 is configured to receive the trigger signal, and control the power module 50 to be in an operating state according to the trigger signal.

In this embodiment, the trigger circuit 80 may be implemented by a button or a knob, and when the burn-in test device of the present utility model needs to perform a burn-in test on a PCB to be tested, a user may trigger the trigger circuit 80 to output a trigger signal, so that the control device 10 controls the power module 50 to perform a power supply operation for the burn-in test device after receiving the trigger signal. Therefore, the power module 50 only needs to perform power supply work when the burning test equipment performs burning test on the PCB to be tested, and when the power module 50 is not triggered by a user, the power module 50 is in a dormant state, so that unnecessary electric quantity consumption of the power module 50 can be reduced to a certain extent, the service life of the power module 50 is prolonged, and the reliability of the burning test equipment is further improved.

In an embodiment of the present utility model, referring to fig. 6, the burn-in test apparatus further includes:

a memory module 110, the memory module 110 being electrically connected to the control device 10;

the control device 10 is configured to output the recording status signal and the detection result signal to the storage module 110 via the second communication circuit 90.

In this embodiment, the storage module 110 may be implemented using a memory or a controller as described in the above embodiment. Specifically, the control device 10 outputs the recording status signal and the detection result signal to the storage module 110, so that a user can analyze and compare the recording test data, and can be used as sample data of the next recording test, so that the user can judge the accuracy of the recording test by referring to the sample data.

It can be understood that, in combination with the above embodiment, the control device 10 may be an upper computer, where the upper computer includes a storage module 110, the upper computer may record the burning status signal and the detection result signal of each time and store the signals in a database, and the upper computer may automatically compare with a test data table in the database when receiving the burning status signal and the detection result signal to determine whether the PCB board to be tested is qualified. In addition, the upper computer can count the number of the printed circuit boards burnt by the burning test equipment in a certain time period, so that the burning test efficiency of the burning test equipment is counted, or the upper computer counts the qualification rate of a certain batch of printed circuit boards.

In the present embodiment, the control device 10 and the memory circuit 22 are integrated in the host computer, and the accuracy of the burning test and the convenience of the user of the burning test device are improved by combining the host computer with the burning test device.

The utility model also provides a burning test system, which comprises the burning test equipment.

It should be noted that, because the burn-in test system of the present utility model is based on the above-mentioned burn-in test device, embodiments of the burn-in test system of the present utility model include all technical solutions of all embodiments of the above-mentioned burn-in test device, and the achieved technical effects are identical, and are not described herein again.

In an embodiment of the burn-in test system of the present utility model, the burn-in test system further includes:

the tool clamp modules are used for being electrically connected with the burning test equipment;

the fixture module comprises a needle bed for placing the PCB to be tested, and when the PCB to be tested is placed on the needle bed, each probe of the needle bed is electrically connected with the test points on the PCB to be tested in a one-to-one correspondence mode.

In this embodiment, the burn-in test device further includes an interface, so that the burn-in test device is electrically connected to the fixture module through a data line. In combination with the embodiment content of the burning test equipment, when a user performs burning test on PCB boards to be tested with different models, the user only needs to replace a fixture module with a needle bed for placing the PCB boards to be tested, then the burning test equipment is connected with the fixture module through a data line, and then the burning test of the PCB boards to be tested is performed. After the burning test is finished, a user only needs to pull out a data line electrically connected between the burning test equipment and the tool clamp module after the burning test, so that the burning test equipment is disconnected with the tool clamp module, then another tool clamp module with the PCB to be tested is connected with the burning test equipment through the data line, and the burning test is started. Therefore, the burn-in test is carried out on the PCB to be tested with different models, a whole set of burn-in test equipment is not required to be replaced, and only the tool clamp modules for placing the PCB to be tested with different models are required to be replaced, so that the cost of the burn-in test equipment is reduced, and the burn-in test efficiency is improved.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all equivalent mechanical changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (9)

1. A burn-in test apparatus, the burn-in test apparatus comprising:

the control device is provided with a signal access end for accessing the burning trigger signal;

the burning circuit is electrically connected with the control device and the PCB to be tested respectively;

the control device is used for controlling the recording circuit to work when receiving the recording trigger signal, and also used for controlling the recording circuit to output a recording state signal to the control device and controlling the working state of the recording circuit according to the recording state signal;

the first communication circuit is respectively in communication connection with the control device and the PCB to be tested, and is used for accessing the test signal;

the voltage detection circuit is electrically connected with the control device;

the control device is further configured to control the voltage detection circuit to detect the test signal according to the recording status signal, and to control the voltage detection circuit to output a detection result signal to the control device.

2. The burn-in test apparatus of claim 1 wherein the burn-in circuit comprises: a main control circuit and a storage circuit; the storage circuit is electrically connected with the main control circuit and is used for storing a burning program.

3. The burn test apparatus of claim 1, wherein the burn test apparatus further comprises:

a power module;

the first end of the switch circuit is electrically connected with the power module, and the second end of the switch circuit is electrically connected with the PCB to be tested;

the control device is used for controlling the switching circuit to turn on or off a channel between the power module and the PCB to be tested.

4. The burn test apparatus of claim 3, wherein the burn test apparatus further comprises:

the input end of the voltage conversion circuit is electrically connected with the power supply module, the controlled end of the voltage conversion circuit is electrically connected with the control device, and the output end of the voltage conversion circuit is electrically connected with the burning circuit, the first communication circuit and the voltage detection circuit respectively;

the voltage conversion circuit is used for converting the output voltage of the power supply module into the power supply voltage required by the burning circuit, the first communication circuit and the voltage detection circuit.

5. The burn test apparatus of claim 4, wherein the burn test apparatus further comprises:

the trigger circuit is electrically connected with the control device,

the trigger circuit is used for outputting a trigger signal through the output end of the trigger circuit when triggered by a user;

the control device is used for receiving the trigger signal and controlling the power supply module to be in a working state according to the trigger signal.

6. The burn test apparatus of claim 1, wherein the burn test apparatus further comprises:

the second communication circuit is electrically connected with the control device;

a display module;

the control device is used for outputting the burning state signal and the detection result signal to the display module through the second communication circuit.

7. The burn test apparatus of claim 6, wherein the burn test apparatus further comprises:

the storage module is electrically connected with the control device;

the control device is used for outputting the burning state signal and the detection result signal to the storage module through the second communication circuit.

8. A burn test system, characterized in that the burn test system comprises a burn test apparatus according to any one of claims 1-7.

9. The burn test system of claim 8, wherein the burn test system further comprises:

the tool clamp modules are used for being electrically connected with the burning test equipment;

the fixture module comprises a needle bed for placing the PCB to be tested, and when the PCB to be tested is placed on the needle bed, each probe of the needle bed is electrically connected with the test points on the PCB to be tested in a one-to-one correspondence mode.