CN217717994U - Multi-connecting-plate test module - Google Patents
Multi-connecting-plate test module Download PDFInfo
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- CN217717994U CN217717994U CN202123118327.3U CN202123118327U CN217717994U CN 217717994 U CN217717994 U CN 217717994U CN 202123118327 U CN202123118327 U CN 202123118327U CN 217717994 U CN217717994 U CN 217717994U
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Abstract
The utility model aims at providing a many even boards test module that modularization is connected and can multiplex. The utility model discloses a first switching module of a plurality of groups, MCU interface unit, product power supply unit and external interface module, first switching module includes product linkage unit, USB communication the control unit and NFC test connection unit, external interface module is connected with product linkage unit and is connected with the cooperation of outside accredited testing organization, product power supply unit, USB communication the control unit and NFC test connection unit all with product linkage unit electric signal connection, product power supply unit and USB communication the control unit all with MCU interface unit connection, the external MCU module of MCU interface unit controls the passageway of product power supply unit and USB communication the control unit and switches on or break off, product power supply unit and product linkage unit are connected and provide operating current for the circuit board that awaits measuring, USB communication the control unit is connected and will await measuring circuit board and host computer communication with product linkage unit. The utility model discloses be applied to functional test's technical field.
Description
Technical Field
The utility model discloses be applied to functional test's technical field, in particular to many even board test module.
Background
Along with the development of science and technology, small-size electronic product such as intelligence bracelet and bluetooth headset is more and more multi-functional for need connect more function board or integrated more function on the main circuit board. In order to avoid interference of other factors on the test result of the main circuit board, the main circuit board is usually tested separately, and in the structure of the connection function board, a corresponding standard function board needs to be arranged on the test device when the main circuit board is tested, and the work condition of each function is detected by debugging the main circuit board. Traditional testing arrangement adopts the simplex position to detect usually, and the single equipment station corresponds and detects an individual function, each item test module diverse, and the low not general of integrated level, the different test boards need design production alone during production.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome prior art not enough, provide a modularization and connect and multiplex even board test module.
The utility model adopts the technical proposal that: the utility model discloses a first switching module of a plurality of groups, MCU interface unit, product power supply unit and external interface module, first switching module includes product linkage unit, USB communication the control unit and NFC test connection unit, external interface module with product linkage unit connects and is connected with the cooperation of outside accredited testing organization, the product power supply unit USB communication the control unit and NFC test connection unit all with product linkage unit signal connection, the product power supply unit with USB communication the control unit all with MCU interface unit connects, the external MCU module of MCU interface unit and control the product power supply unit with USB communication the control unit's passageway switches on or breaks off, the product power supply unit with product linkage unit connects and provides operating current for the circuit board that awaits measuring, USB communication the control unit with product linkage unit connects and is connected the circuit board that awaits measuring with the host computer communication.
According to the scheme, the MCU interface unit is used for receiving a control instruction of an external MCU module and further controlling the product power supply unit and the USB communication control unit, so that the power on and off of the product are controlled, and the communication with an upper computer is opened or disconnected. The product power supply unit and the USB communication control unit are basic functions required by testing of different modules, tests such as burning detection and power-on and power-off function detection are met, and meanwhile, the main circuit board interface to be tested and a standard NFC module are matched to realize NFC testing through the NFC test connection unit. The power supply unit of the product is integrated to realize application and different functional test equipment. In addition, a plurality of groups of first switching modules are connected and matched with the MCU interface unit and the product power supply unit, so that a plurality of main circuit boards to be tested can be simultaneously put in for testing, and the MCU interface unit is connected for integral control. The utility model discloses whole small in size through addding the multiunit many even board test module can realize the more product test that awaits measuring of adaptation in same equipment, improves efficiency of software testing.
One preferred scheme is that the product connection unit comprises a first connection interface matched with a connector on a circuit board to be tested, the product power supply unit, the USB communication control unit and the NFC test connection unit are correspondingly connected with pins on the first connection interface, the MCU interface unit comprises a second connection interface, and pins of the second connection interface are correspondingly connected to the product power supply unit and a control end of the USB communication control unit.
According to the scheme, the first connecting interface is connected with the product to be tested, and then communication and power supply with the circuit board to be tested are achieved. The MCU interface unit is connected with an external MCU control panel and sends a control signal to the product power supply unit and the USB communication control unit.
One preferred scheme is that the product power supply unit comprises a third connecting interface, a plurality of first control relays and a plurality of second control relays, wherein one input end of each of the first control relays and the input ends of the second control relays are connected with the third connecting interface and are grounded, the output end of each of the first control relays is connected with a main circuit power supply terminal of the product connecting unit, the output end of each of the second control relays is connected with a USB communication power supply terminal of the product connecting unit, and the control ends of the first control relays and the second control relays are connected with the MCU interface unit.
According to the scheme, the third connecting interface is connected with an external power supply cable, the first control relays and the second control relays receive the control signals input by the MCU interface unit to conduct and break a power supply channel, and the power supply is controlled to be disconnected by switching to a grounding state.
The USB communication control unit comprises a USB connector and a linear voltage stabilizer, wherein a signal end of the USB connector is connected with a signal terminal of the product connecting unit, a power supply end of the USB connector and an output end of the linear voltage stabilizer are connected with a power supply terminal of the product connecting unit, and a control end of the linear voltage stabilizer is connected with the MCU interface unit.
According to the scheme, the USB connector is connected with an external USB data line, and then the product connecting unit is used for communicating with a product to be tested, so that functional tests such as burning, data feedback detection and the like are completed. And the current input by the USB interface is subjected to voltage stabilization processing through the linear voltage stabilizer, so that the test precision is ensured.
Preferably, the linear regulator is a positive power supply linear regulator of type LT3045EMSE # TRPBF.
According to a preferable scheme, the NFC test connection unit comprises a fourth connection interface, two wiring terminals of the fourth connection interface are connected with the product connection unit, and an inductor is connected between the two wiring terminals of the fourth connection interface.
According to the scheme, the fourth connection interface is connected with the external NFC module, so that the external NFC module is called through the fourth connection interface to perform simulation test in the debugging process, and corresponding feedback signals are obtained.
One preferred scheme is, many even board test module still includes extension interface module, extension interface module pass through the soft arranging wire with first switching module electric connection, extension interface module include with the product complex fifth connection interface and a plurality of function connection interface that awaits measuring, fifth connection interface and a plurality of function connection interface electric connection.
According to the scheme, the expansion interface module is matched with the expansion module to be connected to carry out signal switching, so that the test compatible with different functional modules is realized.
Drawings
Fig. 1 is a connection block diagram of a first embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of the MCU interface unit;
FIG. 3 is a schematic circuit diagram of a first portion of the product power supply unit;
FIG. 4 is a schematic circuit diagram of a second portion of the product power supply unit;
FIG. 5 is a schematic circuit diagram of the external interface module;
fig. 6 is a schematic circuit diagram of the product connection unit;
FIG. 7 is a schematic circuit diagram of the USB communication control unit;
fig. 8 is a schematic circuit diagram of the NFC test connection unit;
FIG. 9 is a schematic circuit diagram of the burst transmission channel module;
fig. 10 is a circuit schematic of the analog input interface module.
Detailed Description
The first embodiment is as follows:
as shown in fig. 1 to 8, in this embodiment, the utility model discloses a two sets of first switching module 1, MCU interface unit 2, product power supply unit 3 and external interface module 4, first switching module 1 includes product connecting unit 5, USB communication control unit 6 and NFC test connection unit 7, external interface module 4 with product connecting unit 5 connects and is connected with the cooperation of outside accredited testing organization, product power supply unit 3 USB communication control unit 6 and NFC test connection unit 7 all with product connecting unit 5 electricity signal connection, product power supply unit 3 with USB communication control unit 6 all with MCU interface unit 2 connects, the IO mouth and the control of the external MCU module of MCU interface unit 2 product power supply unit 3 with USB communication control unit 6's passageway switches on or breaks off, product power supply unit 3 with product connecting unit 5 connects and provides operating current for the circuit board that awaits measuring, USB communication control unit 6 with product connecting unit 5 connects and is connected the circuit board that awaits measuring and host computer communication.
As shown in fig. 9, in this embodiment, the utility model discloses still include with product connecting element 5 complex burns record transmission channel module, it includes input interface, third control relay and fourth control relay to burn record transmission channel module, two sets of terminals of input interface are connected to respectively third control relay with the input of fourth control relay, third control relay with a set of output of fourth control relay is connected to product connecting element 5, third control relay with another group of output ground connection of fourth control relay, third control relay with the control end of fourth control relay all with MCU interface unit 2 connects, MCU interface unit 2 receives the control signal of outside MCU module and carries out third control relay with the on-off control of fourth control relay, and then controls switching on and closing of this functional channel, does not receive this channel interference when guaranteeing to carry out other functional tests.
In this embodiment, product linkage unit 5 include with the circuit board that awaits measuring on the first interface of connector complex, product power supply unit 3 USB communication the control unit 6 and NFC test linkage unit 7 correspond with pin on the first interface corresponds the connection, MCU interface unit 2 includes the second interface, the pin of second interface corresponds to be connected to product power supply unit 3 with USB communication the control end of control unit 6, first interface is connected with the circuit board that awaits measuring, and then realizes the utility model discloses a function module carries out circular telegram and data communication.
In this embodiment, the product power supply unit 3 includes a third connection interface, a plurality of first control relays and a plurality of second control relays, and is a plurality of one of the inputs of first control relays and a plurality of second control relays all with the third connection interface is connected, and is a plurality of another input of first control relays and a plurality of second control relays is ground connection, the output of first control relay with the main circuit power supply terminal of product connection unit 5 is connected, the output of second control relay with the USB communication power supply terminal of product connection unit 5 is connected, third connection interface connection external power line, and then for the circuit board that awaits measuring is electrified and the USB power supply, through MCU interface unit 2 receives the control signal of outside MCU module and carries out the on-off control who powers on.
In this embodiment, the USB communication control unit 6 includes a USB connector and a linear regulator, the signal terminal of the USB connector is connected to the signal terminal of the product connection unit 5, the power supply terminal of the USB connector and the output terminal of the linear regulator are both connected to the power supply terminal of the product connection unit 5, and the control terminal of the linear regulator is connected to the MCU interface unit 2. The linear voltage regulator is a positive power supply linear voltage regulator with the model number LT3045EMSE # TRPBF.
In this embodiment, NFC test connection unit 7 includes fourth connection interface, four connection interface's two binding post all with product connecting element 5 connects, be connected with the inductance between four connection interface's two binding post, through setting up inductance filtering interference.
As shown in fig. 10, in this embodiment, the utility model discloses still include analog input interface module, analog input interface module includes sixth connection interface, transmission interface and MCU interface, sixth connection interface transmission interface and the MCU interface all with product connecting unit 5 carries out analog signal's input and control command's input.
The second embodiment:
the difference between the present embodiment and the first embodiment is: the utility model discloses still include many even board test module still includes the extension interface module, the extension interface module pass through the soft arranging wire with 1 electric connection of first switching module, the extension interface module include with the product complex fifth connection interface and a plurality of functional connection interface that awaits measuring, fifth connection interface and a plurality of functional connection interface electric connection, the functional connection interface includes that the board is to board connector, USB interface and transmission interface, the board is used for carrying out the communication transmission with soft arranging fit connection to the board connector, the transmission interface is used for connecting the extension that the functional module carries out functional test, the USB interface is used for providing a plurality of USB communication channels.
Claims (7)
1. The utility model provides a many even board test module which characterized in that: it includes that a plurality of groups are first to connect module (1), MCU interface unit (2), product power supply unit (3) and external interface module (4), first change connects module (1) including product linkage unit (5), USB communication control unit (6) and NFC test linkage unit (7), external interface module (4) with product linkage unit (5) are connected and are connected with the cooperation of outside accredited testing organization, product power supply unit (3), USB communication control unit (6) and NFC test linkage unit (7) all with product linkage unit (5) signal of telecommunication is connected, product power supply unit (3) with USB communication control unit (6) all with MCU interface unit (2) are connected, MCU interface unit (2) external MCU module and control product power supply unit (3) with the passageway of USB communication control unit (6) switches on or breaks off, product power supply unit (3) with product linkage unit (5) are connected and are for the circuit board that awaits measuring and provide operating current, USB communication control unit (6) with product linkage unit (5) are connected and are awaited measuring the host computer and are connected.
2. The multi-board test module of claim 1, wherein: the product connecting unit (5) comprises a first connecting interface matched with a connector on a circuit board to be tested, the product power supply unit (3), the USB communication control unit (6) and the NFC test connecting unit (7) are correspondingly connected with pins on the first connecting interface, the MCU interface unit (2) comprises a second connecting interface, and the pins of the second connecting interface are correspondingly connected to the product power supply unit (3) and a control end of the USB communication control unit (6).
3. The multi-board test module of claim 1, wherein: product power supply unit (3) include third connection interface, a plurality of first control relay and a plurality of second control relay, and is a plurality of one of them input of first control relay and a plurality of second control relay all with third connection interface connection, it is a plurality of another input ground connection of first control relay and a plurality of second control relay, the output of first control relay with the main circuit power supply terminal of product connecting element (5) is connected, the output of second control relay with the USB communication power supply terminal of product connecting element (5) is connected, and is a plurality of first control relay and a plurality of the control end of second control relay all with MCU interface unit (2) are connected.
4. The multi-board test module of claim 1, wherein: USB communication control unit (6) include USB connector and linear voltage regulator, the signal end of USB connector with the signal terminal of product connecting element (5) is connected, the power supply end of USB connector with linear voltage regulator's output all with the power supply terminal of product connecting element (5) is connected, linear voltage regulator's control end with MCU interface unit (2) are connected.
5. The multi-board test module of claim 4, wherein: the linear regulator is a positive power supply linear regulator of type LT3045EMSE # TRPBF.
6. The multi-board test module of claim 1, wherein: NFC test connection unit (7) include fourth connection interface, four connection interface's two binding post all with product connecting element (5) are connected, be connected with the inductance between four connection interface's two binding post.
7. The multi-board test module of claim 1, wherein: the multi-connection-board testing module further comprises an expansion interface module, the expansion interface module is electrically connected with the first switching module (1) through a flexible flat cable, the expansion interface module comprises a fifth connecting interface and a plurality of functional connecting interfaces, the fifth connecting interface is matched with a product to be tested, and the functional connecting interfaces are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123118327.3U CN217717994U (en) | 2021-12-13 | 2021-12-13 | Multi-connecting-plate test module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123118327.3U CN217717994U (en) | 2021-12-13 | 2021-12-13 | Multi-connecting-plate test module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217717994U true CN217717994U (en) | 2022-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123118327.3U Active CN217717994U (en) | 2021-12-13 | 2021-12-13 | Multi-connecting-plate test module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217717994U (en) |
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2021
- 2021-12-13 CN CN202123118327.3U patent/CN217717994U/en active Active
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