Multi-interface device

Abstract

The utility model relates to the technical field of electronics, and discloses a multi-interface device which not only can improve compatibility, expansibility and adaptability, but also can improve detection efficiency. The USB interface extension module comprises a USB hub extension module, an interface conversion module, an I2C bus multiplexing module, at least one I / O interface extension module and at least one GPIO interface extension module. By matching with the USB hub extension module, the interface conversion module, the I2C bus multiplexing module, the I / O interface extension module and the GPIO interface extension module, integration of a USB interface, an SPI interface, an I2C interface and an I / O interface can be realized, conversion or extension of corresponding interfaces can be realized, a test tool, a host and equipment to be tested can be conveniently connected, and the test efficiency can be improved. And meanwhile, one host can be connected with a plurality of to-be-tested devices at the same time, so that the test data of a plurality of groups of to-be-tested devices can be received at the same time, and the test efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic technical field, especially a multi -interface device. BACKGROUND

[0002] In the existing test fixture, mainly by host terminal through with the mode of network cable port connection with the equipment under test is connected, and then realizes the control to the equipment under test and gathers the relevant data of equipment under test feedback, since adopting is network cable port, there is a defect in actual application, a host terminal can only connect a group of equipment under test, and need to have the port cooperation of adaptation can realize signal connection, compatibility is low, there is the problem that expansibility and adaptability are lower, and the efficiency of detection collection is also low, influence detection efficiency. UTILITARIAN CONTENT

[0003] The utility model aims at at least one of the technical problems existing in the prior art. To this end, the utility model provides a multi -interface device, which can not only improve compatibility, expansibility and adaptability, but also improve detection efficiency.

[0004] The multi -interface device according to the utility model embodiment comprises:

[0005] A USB hub expansion module is used to expand a plurality of USB interfaces.

[0006] An interface conversion module is electrically connected with the USB hub expansion module and is used to expand a plurality of SPI interfaces and a plurality of I2C interfaces.

[0007] An I2C bus multiplexing module is electrically connected with the interface conversion module and is used to expand the number of device connections of the I2C bus.

[0008] At least one I / O interface expansion module is electrically connected with the I2C bus multiplexing module respectively and is used to expand I / O interfaces.

[0009] At least one GPIO interface expansion module is electrically connected with the I2C bus multiplexing module respectively and is used to expand GPIO interfaces.

[0010] According to some embodiments of the utility model, a plurality of multiplexing selection modules are further included and are electrically connected with the corresponding USB hub expansion module, interface conversion module and I2C bus multiplexing module respectively.

[0011] According to some embodiments of the utility model, a level conversion module is further connected between the multiplexing selection module and the interface conversion module.

[0012] According to some embodiments of the present application, the Type-C interface expansion module adopts a chip model PTN5110.

[0013] According to some embodiments of the present application, the Type-C interface expansion module adopts a chip model PTN5110.

[0014] According to some embodiments of the present application, the power module is electrically connected with the USB hub expansion module, the interface conversion module, the I2C bus multiplexing module, the I / O interface expansion module and the GPIO interface expansion module respectively.

[0015] According to some embodiments of the present application, the interface conversion module adopts a chip model FT4222HQ.

[0016] According to some embodiments of the present application, the I2C bus multiplexing module adopts a chip model TCA9546.

[0017] According to some embodiments of the present application, the I / O interface expansion module adopts a chip model CAT9555.

[0018] According to some embodiments of the present application, the GPIO interface expansion module adopts a chip model TCA6416.

[0019] The present application has the following advantages: the USB hub expansion module, the interface conversion module, the I2C bus multiplexing module, the I / O interface expansion module and the GPIO interface expansion module are combined to integrate the USB interface, the SPI interface, the I2C interface and the I / O interface, to realize the conversion or expansion of the corresponding interface, to facilitate the connection of the test tool, the host and the device under test, to realize the connection of multiple devices under test by one host, to receive the test data of multiple devices under test simultaneously, and to improve the test efficiency.

[0020] The additional aspects and advantages of the present application will be partially given in the following description, partially will be obvious from the following description, or will be understood by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0022] Figure 1Circuit principle schematic view of the multi-interface device of another embodiment of the utility model;

[0023] Figure 2 Circuit principle schematic view of the multi-interface device of another embodiment of the utility model;

[0024] Figure 3 Structure schematic view of the integrated interface box of the multi-interface device of another embodiment of the utility model;

[0025] Figure 4 Another structure schematic view of the integrated interface box of the multi-interface device of another embodiment of the utility model;

[0026] Figure 5 Circuit principle schematic view of the lighting module of the multi-interface device of another embodiment of the utility model;

[0027] Figure 6 Structure schematic view of the telescopic connecting cable of the multi-interface device of another embodiment of the utility model.

[0028] Reference signs:

[0029] Reference Name Reference Name 110 USB hub expansion module 250 Second magnetic connection part 120 Interface conversion module 260 Illumination module 130 I2C bus multiplexing module 261 Energy storage unit 140 I / O interface expansion module 262 First LED lamp unit 150 GPIO interface expansion module 263 Second LED lamp unit 160 Multiplexing module 264 First control switch 170 Level conversion module 265 Second control switch 180 Type-C interface expansion module 270 Connection line accommodating groove 210 Integrated interface box 280 Telescopic connection cable 220 Main shell 281 Volute type wire winder 230 Cover plate 282 Wire ear 240 First magnetic connection part 283 Connection clamping groove DETAILED DESCRIPTION

[0030] The conception, specific structure and generated technical effects of the utility model will be described clearly and completely in combination with the embodiments and the drawings, so as to fully understand the purpose, scheme and effect of the utility model. It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other without conflict.

[0031] It should be noted that, without special instructions, when a certain feature is referred to as "fixed", "connected" to another feature, it can be directly fixed, connected to another feature, or indirectly fixed, connected to another feature. In addition, the up, down, left, right, top, bottom and other descriptions used in the utility model are only relative to the mutual position relationship of the components of the utility model in the drawings.

[0032] It should be noted that, without special instructions, when a certain feature is referred to as "electrically connected" or "electrically connected" between another feature, the two features can be directly connected through a pin, or connected through a cable, or connected through a wireless transmission mode. The specific electrically connected mode belongs to the general mode of those skilled in the art, and those skilled in the art can realize the connection according to the needs.

[0033] Also, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this technology belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the present technology. As used in the description herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0034] It should be understood that, although the terms first, second, third, etc. can be used herein to describe various elements, these elements should not be limited to these terms. These terms are only used to distinguish one element from another. For example, a first element could also be termed a second element, and, similarly, a second element could also be termed a first element, without departing from the scope of the present disclosure.

[0035] Referring to Figure 1 , the multi-interface device according to the embodiments of the present application comprises:

[0036] The USB hub expansion module 110 is configured to expand a plurality of USB interfaces.

[0037] The interface conversion module 120 is electrically connected to the USB hub expansion module 110 and is configured to expand a plurality of SPI interfaces and a plurality of I2C interfaces.

[0038] The I2C bus multiplexing module 130 is electrically connected to the interface conversion module 120 and is configured to expand the number of device connections of the I2C bus.

[0039] The at least one I / O interface expansion module 140 is electrically connected to the I2C bus multiplexing module 130 and is configured to expand I / O interfaces.

[0040] The at least one GPIO interface expansion module 150 is electrically connected to the I2C bus multiplexing module 130 and is configured to expand GPIO interfaces.

[0041] In actual design, the number of I / O interface expansion modules 140 and GPIO interface expansion modules 150 can be set according to actual needs to achieve the expansion of the corresponding number of interfaces. For example, in an embodiment, referring to Figure 2 , the USB hub expansion module 110 is provided with one, the interface conversion module 120 is provided with one, the I2C bus multiplexing module 130 is provided with one, the I / O interface expansion module 140 is provided with three, and the GPIO interface expansion module 150 is provided with one.

[0042] Among them, a single USB hub expansion module 110 can be connected with the host and the interface conversion module 120 through the corresponding USB interface according to the needs of even the corresponding number of USB interfaces, the I2C bus multiplexing module 130 can be used to expand the number of device connections of the I2C bus, that is, it can facilitate the host to realize signal connection with more devices to be tested or other devices, the I / O interface expansion module 140 is provided, which can not only realize connection with the device to be tested, but also realize connection with external test tools, such as various different sensor devices, the GPIO interface expansion module 150 is provided, which can realize conversion between the I / O interface and the GPIO interface, further improving the adaptability of the interface connection and facilitating the connection between different devices.

[0043] With reference to Figure 2 In some embodiments of the utility model, still include several multichannel selection module 160, respectively with corresponding USB hub expansion module 110, interface conversion module 120 and I2C bus multiplexing module 130 electric connection. Cooperate multichannel selection module 160, can realize the selection input or output of multiple signals, or the same signal is selected according to the needs of output to the corresponding output, multichannel selection module 160 can select the MUX multiplexer of adaptive type according to the needs, and the specific model selection can be set according to actual demand, namely multichannel selection module 160 is used for the host to collect the signal output by the device to be tested or the corresponding signal output by the host to the device to be tested.

[0044] With reference to Figure 2 In some embodiments of the utility model, multichannel selection module 160 and interface conversion module 120 are further connected with level conversion module 170. Level conversion module 170 is used for converting input signals from one voltage level to another voltage level, which can ensure the input and output of the corresponding signals of the device to be tested, so as to solve the signal compatibility problem between different voltage domains and improve the compatibility.

[0045] With reference to Figure 2In some embodiments of the utility model, still include Type C interface expansion module 180, Type C interface expansion module 180 with I2C bus multiplexing module 130 electric connection, for expanding Type C interface and power supply outward. With Type C interface expansion module 180, not only can expand Type C interface, simultaneously can utilize Type C interface expansion module 180 to the device under test realizes power supply. With Type C interface expansion module 180 and I2C bus multiplexing module 130, can realize efficient power management and flexible device connection, applicable to a variety of need USBType C and I2C bus expansion application scene, Type C can be used to realize output or input signal between the device under test or is to the device under test provides power supply.

[0046] In some embodiments of the utility model, the chip model used by Type-C interface expansion module 180 is PTN5110. The chip has strong compatibility, meets USBPD, Type-C and TCPC specifications, supports multiple PD roles, including Sink (powered device), Source (power supply device), DRP (dual-role port) and the like.

[0047] In some embodiments of the utility model, a power module is further included, which is electrically connected with the USB hub expansion module 110, the interface conversion module 120, the I2C bus multiplexing module 130, the I / O interface expansion module 140 and the GPIO interface expansion module 150 respectively.

[0048] In some embodiments of the utility model, the chip model used by the USB hub expansion module 110 is USB2514B. The chip has high compatibility, can be compatible with multiple USB devices, supports multiple power management options and port settings, and has an electrostatic discharge protection function, so that the connected devices can operate stably and reliably.

[0049] In some embodiments of the utility model, the chip model used by the interface conversion module 120 is FT4222HQ. The chip serves as a bridge for converting USB interface to SPI / I2C, and the entire USB protocol can be processed on the chip without USB-specific firmware programming. The chip has a configurable SPI master / slave interface controller, supports single, double and four data width transmission modes, and the SPI master device supports a clock frequency of up to 30MHz and a data transmission rate of up to 28Mbps. The chip has strong compatibility, meets I2Cv2.1 and v3.0 specifications, and supports multiple data transmission rates.

[0050] In some embodiments of the utility model, the chip model of I2C bus multiplexing module 130 is TCA9546. The chip can expand one I2C bus into multiple channels, so that the user can increase the number of device connections as needed, further improve the adaptability range, and can switch channels through signal selection, which is convenient for managing multiple I2C devices, and has high reliability and stability.

[0051] In some embodiments of the utility model, the chip model of I / O interface expansion module 140 is CAT9555. The chip can provide 16-bit I2C I / O port expansion, so that the user can increase the number of I / O ports of the microcontroller as needed; support multiple working modes, including input, output, interruption, etc., have strong compatibility, and can be compatible with multiple microcontrollers and systems.

[0052] In some embodiments of the utility model, the chip model of GPIO interface expansion module 150 is TCA6416. The chip can provide 16-bit GPIO expansion to meet various control requirements, has strong compatibility, and can also be compatible with multiple microcontrollers and systems.

[0053] In some embodiments of the utility model, working indicator lights are arranged at the USB interface, I / O interface, SPI interface and I2C interface. The working indicator lights are arranged, which can facilitate the operator to intuitively observe the current working state of the corresponding interface during the test process, and improve the convenience.

[0054] It should be noted that, in addition to the chip model mentioned above, the corresponding peripheral circuit is also needed to realize the corresponding function, and the specific circuit design belongs to the commonly used technology of the corresponding module in the technical field, which can also be designed in combination with the function specification of the chip, therefore, the utility model does not make detailed description, the utility model mainly realizes the connection between the host, the device under test and the tool under test through the connection between the above-mentioned modules, and simultaneously expands the conversion of the corresponding interface protocol, effectively improves the connection efficiency during the interface connection, and reduces the difficulty between the connection cables, which can facilitate the expansion of the connection between more devices, and can simultaneously receive the test data of multiple groups of devices under test, and effectively improves the test efficiency.

[0055] Referring to Figure 3 Or Figure 4 In some embodiments of the utility model, the USB hub expansion module 110, the interface conversion module 120, the I / O interface expansion module 140, the GPIO interface expansion module 150, the multiplexing module 160, the level conversion module 170, the Type-C interface expansion module 180 and the power module are integrated on the circuit board, and the circuit board is arranged in an integrated interface box 210.

[0056] With reference to Figure 3 Or Figure 4 In some embodiments of the utility model, the integrated interface box 210 includes main shell 220 and cover plate 230, circuit board is located in main shell 220, USB interface, I / O interface, SPI interface and I2C interface are respectively arranged on the upper surface of main shell 220 and are electrically connected with corresponding module, one side of cover plate 230 is hinged with main shell 220, when cover plate 230 covers on main shell 220, can cover USB interface, I / O interface, SPI interface and I2C interface etc.

[0057] With reference to Figure 3 Or Figure 4 In some embodiments of the utility model, the upper surface of main shell 220 is provided with first magnetic connection part 240, and the periphery of the side surface of cover plate 230 covering main shell 220 is provided with second magnetic connection part 250 matched with first magnetic connection part 240, when cover plate 230 covers the surface of main shell 220, first magnetic connection part 240 and second magnetic connection part 250 are connected through magnetism, and fixed connection between cover plate 230 and main shell 220 is realized.

[0058] With reference to Figure 3 Or Figure 4 In some embodiments of the utility model, first magnetic connection part 240 and second magnetic connection part 250 are magnet or ferromagnetic body, and at least one of first magnetic connection part 240 and matched second magnetic connection part 250 is magnet. When first magnetic connection part 240 and second magnetic connection part 250 are both magnet, then the magnetic poles of first magnetic connection part 240 and second magnetic connection part 250 need to be set according to suitable direction by using the principle of opposite sex attraction, then when cover plate 230 and main shell 220 are close to each other, corresponding first magnetic connection part 240 and second magnetic connection part 250 will be attracted to each other to realize fixation, when only one of them is magnet, then the other can directly use ferromagnetic material, and magnetic connection can also be realized, so that cover plate 230 and main shell 220 can realize fixed connection, when separation is needed, cover plate 230 only needs to be moved in the direction away from main shell 220 by using external force, then the separation of the two can be realized, which can facilitate the operator to fix or disassemble cover plate 230 and main shell 220, and improve the convenience.

[0059] With reference to Figure 4 And Figure 5In some embodiments of the utility model, still include lighting module 260, lighting module 260 includes energy storage unit 261, first LED lamp unit 262, second LED lamp unit 263, first control switch 264 and second control switch 265, first LED lamp unit 262 is located on the periphery of the upper surface of main casing 220, second LED lamp unit 263 is located on the surface of the side of cover plate 230 towards main casing 220, first control switch 264 is electrically connected between energy storage unit 261 and first LED lamp unit 262, second control switch 265 is electrically connected between energy storage unit 261 and second LED lamp unit 263. In the case of poor ambient light, temporary light source can be provided by using lighting module 260, since energy storage unit 261 is used, temporary lighting can be realized without power supply, so that the operator can identify the position of the corresponding interface, so that the connection between the connecting line and the corresponding port is facilitated, and the convenience is further improved, and first control switch 264 and second control switch 265 can be used to individually control first LED lamp unit 262 or second LED lamp unit 263. It should be noted that energy storage unit 261 can be provided with an input connection port, and can be directly connected with the mains by using a rectifier circuit, and after the energy consumption of energy storage unit 261, the power supply can be realized by the mains to charge and store energy.

[0060] Wherein, first control switch 264 and second control switch 265 are arranged on the surface of main casing 220, first LED lamp unit 262 and second LED lamp unit 263 can directly use the commonly used LED lamp strip on the market, and are respectively laid on the upper surface of main casing 220 or the surface of cover plate 230, and energy storage unit 261 is arranged on the circuit board in the main casing 220.

[0061] In some embodiments of the utility model, first control switch 264 and second control switch 265 can use touch switch and / or single control switch, so that the operator can only need to click the switch when preparing to connect the corresponding interface, so that the corresponding LED lamp unit can be turned on, and the hand can be released after being aligned and inserted, so that the convenience is improved, if single control switch is used, the corresponding LED lamp unit can be kept in the state of continuous lighting when the single control switch is pressed, and the corresponding LED lamp unit can be paused by clicking the single control switch again, so that the single control switch can not only facilitate the checking of the interface position, but also can make the light source as temporary lighting in power failure, and the applicability of the utility model is further improved.

[0062] Refer to Figure 4In some embodiments of the utility model, one connecting line accommodating groove 270 is arranged on the main shell 220, which can conveniently accommodate the connecting cable.

[0063] Referring to Figure 5 In some embodiments of the utility model, the telescopic connecting cable 280 is further provided, and the two ends of the telescopic connecting cable 280 are provided with any one of the adapters of Type-C interface, USB interface, I / O interface, SPI interface and I2C interface according to requirements, so as to realize electrical connection between the utility model and the host, the testing tool or the device to be tested. The two ends of the telescopic connecting cable 280 are the corresponding adapters, the middle part is provided with a vortex type cable reel 281 for collecting lines, bidirectional stretching or contraction can be realized, in use, the length of the telescopic connecting cable 280 can be adjusted according to requirements, when not in use, the cable can be completely retracted into the vortex type cable reel 281, the volume is small, convenient storage, and the structure is simple, when storage, the telescopic connecting cable 280 can be placed in the connecting line accommodating groove 270, convenient storage and transfer, the convenience is improved, the telescopic connecting cable 280 is provided, which can be conveniently stored, and a plurality of telescopic connecting cables 280 with different adapters can be prepared for daily use, standby, and the convenience is further improved.

[0064] In some embodiments of the utility model, the vortex type cable reel 281 on the telescopic connecting cable 280 is symmetrically provided with wire ears 282, and the two end adapters of the telescopic cable are respectively provided with connecting clamping grooves 283 matched with the wire ears 282. When the cable is retracted, the wire ear 282 is pulled into the connecting clamping groove 283 by the spring in the cable reel, and the clamping can be realized by completely buckling connection. Conversely, when it needs to be lengthened, the two end adapters are pulled out of the corresponding wire ears 282 respectively, and are lengthened in the opposite direction along the two sides respectively. Since the wire ear 282 is pulled into the connecting clamping groove 283, complete clamping and fixation can be achieved, the two end adapters cannot swing arbitrarily, which is beneficial to improving the protection of the connection between the adapter and the cable, and greatly prolongs the service life of the telescopic connecting cable 280.

[0065] According to the embodiments of the utility model, by thus setting, at least some effects can be achieved, cooperating with the USB hub expansion module 110, the interface conversion module 120, the I2C bus multiplexing module 130, the I / O interface expansion module 140 and the GPIO interface expansion module 150, the USB interface, the SPI interface and the I2C interface and the I / O interface can be integrated together, the conversion or expansion of the corresponding interface can be realized, the testing tool, the host and the device to be tested can be connected conveniently, meanwhile, one host can be connected with multiple devices to be tested, and then multiple groups of test data of the devices to be tested can be received simultaneously, and the test efficiency is effectively improved.

[0066] The above only is the preferred embodiment of the present application, and the present application is not limited to the above-mentioned embodiments, as long as the same means achieve the technical effects of the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure. All should belong to the protection scope of the present application. The technical solutions and / or embodiments within the protection scope of the present application can have various modifications and changes.

Claims

1. A multi-interface device, characterized by, The application relates to a USB interface expansion device. The USB interface expansion device comprises: a USB hub expansion module (110) for expanding a plurality of USB interfaces; an interface conversion module (120) electrically connected with the USB hub expansion module (110) and used for expanding a plurality of SPI interfaces and a plurality of I2C interfaces; an I2C bus multiplexing module (130) electrically connected with the interface conversion module (120) and used for expanding the number of device connections of an I2C bus; at least one I / O interface expansion module (140) electrically connected with the I2C bus multiplexing module (130) and used for expanding I / O interfaces; 2. The multi-interface apparatus of claim 1, wherein: at least one GPIO interface expansion module (150) electrically connected with the I2C bus multiplexing module (130) and used for expanding GPIO interfaces.

3. The multi-interface apparatus of claim 2, wherein: The USB interface expansion device further comprises a plurality of multiplexing modules (160) electrically connected with corresponding USB hub expansion modules (110), interface conversion modules (120) and I2C bus multiplexing modules (130).

4. The multi-interface apparatus of claim 1, wherein: The multiplexing modules (160) and the interface conversion modules (120) are further connected with a level conversion module (170).

5. The multi-interface apparatus of claim 4, wherein: The USB interface expansion device further comprises a Type-C interface expansion module (180) electrically connected with the I2C bus multiplexing module (130) and used for expanding Type-C interfaces and externally supplying power.

6. The multi-interface apparatus of claim 1, wherein: The Type-C interface expansion module (180) adopts a chip model PTN5110.

7. The multi-interface apparatus of claim 1, wherein: The USB interface expansion device further comprises a power module electrically connected with the USB hub expansion module (110), the interface conversion module (120), the I2C bus multiplexing module (130), the I / O interface expansion module (140) and the GPIO interface expansion module (150).

8. The multi-interface apparatus of claim 1, wherein: The interface conversion module (120) adopts a chip model FT4222HQ.

9. The multi-interface apparatus of claim 1, wherein: The I2C bus multiplexing module (130) adopts a chip model TCA9546.

10. The multi-interface apparatus of claim 1, wherein: The I / O interface expansion module (140) adopts a chip model CAT9555. The GPIO interface expansion module (150) adopts a chip model TCA6416.

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