TWM652723U - Card-type usb c transfer - Google Patents

Abstract

A card-type USB C transfer, which includes a first connection interface for coupling and electrically connecting a portable power source, a second connection interface having a first USB C port, a second USB C port and a USB A or Micro port, for coupling and electrically connecting at least one external device, an internal circuit electrically connected to the first connection interface and the second connection interface, and been configured to provide more than one power transmission path between the portable power source and the external device, which includes at least a bi-directional power transmission path disposed between the first connection interface and the first USB C port, and a control module coupled to a power regulator been disposed on the internal circuit used to cut off power from the portable source, while the card-type USB C transfer not been used, for protecting the card-type USB C transfer.

Description

Card USB Type C adapter

This invention relates to a transfer device, especially a card-type USB Type C transfer device.

At present, portable power tools have been widely used in many fields of industry and life. In the field of power tools, power tools usually use high-energy-density battery packs as portable power sources to charge the power tools. The battery pack is composed of multiple cells. There is an interface unit that can be connected to the power tool or charger. When the battery pack is connected to the power tool, it discharges it. When it is connected to the charging adapter, the charger discharges it. The batteries in the battery pack are charged for repeated use.

As more and more devices go wireless and battery technology advances, removable, rechargeable battery packs are becoming ubiquitous.

Such battery packs are often part of a cordless power tool system and are designed and configured to operate with a variety of cordless power tools, such as drills, circular saws, and grinders. As is well known in the art, battery packs and power tools include interface systems that enable the battery pack to be coupled to the power tool. Typically, these battery packs are charged using battery pack chargers that are designed and configured to charge the specific battery pack. These chargers are designed and configured to plug into a wall outlet for alternating current (AC) Power line (mains) power or some other AC source such as a generator. Generally speaking, the ability to use the above battery pack to power other non-power tool related electronic devices (such as mobile phones or low-power lights) is also one of the design considerations.

Based on the above, nowadays, people are increasingly dependent on mobile devices, such as smartphones, tablets, etc. In addition, there are still many mobile devices with non-replaceable batteries, and many users choose to carry power banks to charge their mobile devices in order to cope with long-term use throughout the day. At this time, mobile devices that support fast charging and discharging and bidirectional charging and discharging and comply with the USB Type C specification have become an important choice for users.

Currently, there are many specifications and protocols for various electronic equipment or devices with different charging/discharging voltage and power wattage requirements on the market, making it difficult to meet the needs of one machine for multiple purposes. Under this premise, currently the only USB type C PD related products that can provide equipment that meets the needs of high power and multiple voltage supplies are available.

However, apart from the battery terminals, general power tool batteries do not have any connecting equipment/devices that can provide the battery pack for charging/discharging.

In order to solve the above shortcomings, this invention proposes a card-type USB Type C converter. The converter includes: a substrate; a first connection interface disposed on the substrate for coupling and electrically connecting an external portable power supply. so that the card-type USB Type C adapter is coupled with the external portable power supply; a second connection interface, including a first USB type C port, a second USB type C port and a USB type A or Micro port, configured on the substrate for coupling and electrically connecting an external device; a An internal circuit is disposed on the substrate, electrically connected to the first connection interface and the second connection interface, and is disposed between the external portable power supply and the external device to provide more than one power transmission path, which at least It includes: a bidirectional power transmission path, connecting the first connection interface and the first USB type C port, providing a bidirectional charging and discharging function; a control module electrically connected to a power regulator, set in the internal circuit, when the card When the USB Type C converter is coupled to the external portable power supply and has not been used for more than a preset time, the control module cuts off the power supply of the external portable power supply to the power regulator, allowing the above-mentioned one or more power transmission paths to All stop operating to protect the card-type USB Type C adapter; a wake-up switch is electrically connected to a power trigger control unit, and by triggering the power trigger control unit, the above one or more power transmission paths are restored to action; wherein, the power The trigger control unit is electrically connected to the control module and the power regulator.

In one embodiment, the above-mentioned first connection interface is a connector interface including a plurality of connection terminals, and the connector interface is a gold finger connector interface or a DIN connector interface.

In one embodiment, the above-mentioned card-type USB Type C adapter further includes a pair of insertion guide bars disposed on both sides of the card-type USB Type C adapter to guide the card-type USB Type C adapter to be embedded in the externally removable Carry power supply.

In one embodiment, the control module controls a switch electrically connected between the external portable power supply and the one or more power transmission paths to open a circuit to cut off the external portable power supply. carry power supply to the power regulator.

In one embodiment, the bidirectional power transmission path is through a first power supply controller electrically coupled between the first connection interface and the first USB type C port and connected to the first USB type C port. To communicate with an external electronic device, (i) when the external electronic device is a power supply device, the power of the external electronic device is controlled by the first power supply controller to power the external portable power supply through a charging path; ( ii) When the external electronic device requires power, the power of the external portable power supply is controlled by the first power supply controller to power the external electronic device through a discharge path.

In one embodiment, the first one-way power transmission path is provided with a one-way power supply function by a battery pack of a portable power source.

In one embodiment, the first one-way power transmission path is connected to the second USB type C port through a second power supply controller electrically coupled between the first connection interface and the second USB type C port. The C port communicates with an external electronic device. When the external electronic device requires power, the power of the external portable power supply is controlled by the second power supply controller to power the external electronic device through a discharge path.

In one embodiment, the second one-way power transmission path is provided with a one-way power supply function by a battery pack of a portable power source.

In one embodiment, the second one-way power transmission path is through an electrical The first power supply controller coupled to the first connection interface and the USB type A or Micro port communicates with an external electronic device connected to the USB type A or Micro port. When the external electronic device requires power, the external portable power supply The power is controlled by the first power supply controller to power the external electronic device through a discharge path.

In one embodiment, when an external device is connected to the first USB type C port and the second USB type C port at the same time and requires power from a battery pack, the power supply ratio is allocated individually through a protocol.

100:Charging system

101:Portable power supply

101a: Battery pack

101b: Battery pack battery management assembly circuit board (PCBA)

101c: Battery pack power terminal board

101d:Gold finger connector

101e: Board guide rail

101-1: Card slot

102: Card USB Type C adapter

102a:Goldfinger PCBA

(102b,102c):USB type C port

102d: USB Type A or Micro port

102-1:Substrate

102e:Insert guide bar

103:USB type C charging adapter

201:Portable power supply

201-1: Card slot

201e: Board guide rail

202:External plug-in card USB Type C adapter

202e: Insert into guide groove

301: Portable power supply

302:Plug-in USB Type C adapter

305: Electric machine tools

307:Laptop

309:Smartphone

400: Circuit block diagram

401: Portable power supply

402: Card USB Type C Adapter

410:Battery pack module

411: First power supply controller

412: Second power supply controller

413: Power trigger control unit (PWR Trigger SW Control)

414: Power regulator (PWR Regulator)

415:Control Module

416: Buck/Boost Converter 1

417:Fixed Buck Converter 1

418: Second Buck/Boost Converter (Buck/Boost Converter 2)

420:Card Connector

430: Multiple connection terminals

440:Battery pack protection module

451: First USB type C port

453: Second USB type C port

455: USB Type A or Micro port

457:Wakeup switch

500:Charging system

501: Portable power supply

501a: Battery pack

501b: Battery pack battery management assembly circuit board (PCBA)

501c: Battery pack power terminal board

501d: DIN connector female seat

502e: Male plug of DIN connector

(502b,502c): USB type C port

502d:USB type A or Micro port

503:USB Type C charging adapter

601: Built-in DIN interface machine tool battery box

602: Card USB Type C adapter

605: Electric machine tools

607:Laptop

609:Smartphone

701: Battery box with built-in DIN interface

702: Card USB Type C Adapter

700: Circuit block diagram

[Figure 1] shows a schematic diagram of the charging system related to the card-type USB Type C adapter according to one aspect of this invention.

[Figure 2A] shows an individual perspective view and a combined view of the external card-type USB Type C adapter and the machine tool battery box proposed by this invention.

[Figure 2B] shows an individual perspective view and a combined view of the plug-in card USB Type C adapter and the machine tool battery box proposed by this invention.

[Figure 3] shows a schematic diagram of the application scenario of the card-type USB Type C converter combined with the machine tool battery box proposed by this invention.

[Figure 4] shows the internal circuit block diagram of the battery box combined with the card-type USB Type C converter proposed by this invention.

[Figure 5] shows a schematic diagram of the charging system related to the card-type USB Type C adapter according to another aspect of this invention.

[Figure 6] shows a schematic diagram of the application scenario of the card-type USB Type C converter combination proposed by this invention with a built-in DIN interface for a machine tool battery box.

[Figure 7] shows the internal circuit block diagram of the battery box with built-in DIN interface combined with the card-type USB Type C converter proposed by this invention.

Here, this invention will be described in detail with respect to specific embodiments of the invention and its viewpoints. Such descriptions are intended to explain the structure or step process of the invention, which are for illustrative purposes rather than limiting the patentable scope of the invention. Therefore, in addition to the specific embodiments and preferred embodiments in the specification, the present invention can also be widely implemented in other different embodiments. The following describes the implementation of the present invention through specific embodiments. Those familiar with this technology can easily understand the efficacy and advantages of the present invention through the content disclosed in this specification. Moreover, this invention can also be used and implemented through other specific embodiments. Various details described in this specification can also be applied based on different needs, and various modifications or changes can be made without departing from the spirit of this invention.

The purpose of this creation is to propose a new USB type C PD fast charge/discharge adapter, so that it can be used with the corresponding newly developed tool battery or portable (Portable) battery pack to facilitate portability and require fast charging/discharging of various types. Portable products, such as smartphones, laptops, tablets, screens, machine tools, electric vehicles, etc. This creation can be expanded to the development of many products related to USB type C power supply, and can create business opportunities for developing multi-product applications through USB type C PD converters.

The technical problems to be solved by this creation include: (a) How does the USB type C controller control the entry/exit of bidirectional power without conflict and solve the complex power channel, voltage/current communication between the battery module and external charging/discharging equipment/ Detection and power control issues; (b) How the battery module uses various interfaces to connect with the transfer device to detect/control power issues; (c) How to match the corresponding machine tool battery/power bank.

Figure 1 shows the charging system 100 related to the card-type USB Type C adapter proposed in this invention. This system includes: a portable power supply 101 (such as but not limited to a machine tool battery box), a card-type USB Type C adapter 102 and USB type C charging adapter 103. The left picture of Figure 1 is a cross-sectional view of the plug-in card type portable power supply 101 and the plug-in card type USB Type C converter 102. The portable power supply 101 contains a battery pack 101a, a battery pack and a battery management assembly circuit board (PCBA). ) 101b, coupled to the battery pack power terminal board 101c and gold finger connector 101d of the battery pack battery management assembly circuit board 101b; the gold finger PCBA 102a of the inserted card-type USB Type C converter 102 is coupled to the gold finger connector 101d catch. The right picture of Figure 1 is a front view of the plug-in card-type portable power supply 101 and the plug-in card-type USB Type C adapter 102. The card-type USB Type C adapter 102 has two sets of USB type C ports (102b, 102c). and a set of USB Type A or Micro type ports 102d. The USB type C port 102c on the right side is a two-way charge/discharge port, which can be used as a USB type C adapter 103 to charge the battery pack in the portable power supply 101. Charging port.

In one embodiment, the card-type USB Type C adapter 102 can be inserted into the portable power supply 101 through a pair of insertion guide bars 102e guided by the board guide rail 101e provided in the card slot 101-1 of the portable power supply 101.

In one embodiment, the card-type USB Type C converter 102 includes a substrate 102-1; a first connection interface, that is, a gold finger PCBA 102a, is disposed on the substrate 102-1 for coupling and electrical connection. Connect the portable power supply 101 so that the card-type USB Type C adapter 102 is coupled with the portable power supply 101; a second connection interface, that is, the above two sets of USB type C ports (102b, 102c) and a set of USB Type C ports A or Micro port 102d is configured on the substrate 102-1 for coupling and electrically connecting an external device; an internal circuit is configured on the substrate 102-1 and is electrically connected to the first connection interface and The second connection interface is configured between the external portable power supply 101 and the external device to provide more than one power transmission path.

Figure 2A shows an individual perspective view and a combined view of the card-type USB Type C adapter 202 and the portable power supply 201 disclosed in the present invention. In the figure, the card guide rail 201e is provided in the card slot 201-1 of the portable power supply 201. The card-type USB Type C converter 202 located there can be guided to be inserted into the guide slot 202e, so that the card-type USB Type C converter 202 is embedded in the portable power supply 201; Figure 2B shows the plug-in card-type USB Type C converter 202 proposed by this invention. Individual perspective views and combined views of the portable power supply 201.

Figure 3 shows the plug-in USB Type C converter 302 proposed by this invention combined with a portable battery Schematic diagram of the application scenario of source 301. The diagram on the right side of Figure 3 shows that the plug-in USB Type C converter 302 combined with the portable power supply 301 can be used as a power source for an external device 305 (such as but not limited to an electric power tool), while providing the USB Type C converter 302 with a portable power supply. The charging interface for charging the battery pack in the power supply 301; the left side of Figure 3 shows that the plug-in USB Type C adapter 302 combined with the portable power supply 301 can be used as various electronic devices/devices, such as a notebook computer 307 or a smart phone The power source of the mobile phone 309 (equivalent to a mobile power source) is to charge it, and at the same time, a charging interface is provided for the USB Type C adapter 302 to charge the battery pack in the portable power supply 301 .

The technology proposed in this creation includes: (1) Designing and using two USB type C PD controllers to communicate with each other to simplify the control of DC-DC Buck/Boost Converter (DC-DC Buck/Boost Converter) )/anti-reverse MOS switch/USB type C power supply controller (Power Controller)/current detection circuit to complete the complex communication detection and control problems between the battery pack and external charging/discharging equipment; (2) The battery module can use various Interface connectors are used to connect with transfer devices to overcome detection/control power problems; (3) Use various interface connectors such as golden fingers and DIN to combine with portable power battery terminals, and add functional options to the battery box, that is, add a Sense Switches and related circuits can expand the problem of portable power supplies that can only be combined with the transfer device. For relevant design details, please refer to the relevant circuit block diagram in Figure 4.

According to the concept of this invention, the card-type USB Type C adapter disclosed in this invention is suitable for power supply devices lacking a USB Type C interface, such as shown in Figure 2A, by configuring a portable power supply with an expansion card slot interface, such as that shown in Figure 2A The portable power supply shown in 2B has a built-in expansion card slot (internal card type), and can also be used with an external expansion card slot (external card type). The card-type USB Type C converter proposed in this creation uses the new power delivery (PD, power delivery) specification of USB C PD 3.1+QC4.0. This function includes It can provide up to 100W of bidirectional power. Because the transfer is bidirectional, it has the properties of a charger. For example, as a transfer device for power tools, it can charge a rechargeable battery pack and power various electronic devices through its USB Type C port, with a maximum power supply of 100W, and up to 100W through its USB type A or Micro port. Can output 12W.

The card-based USB Type C converter utilizes the USB PD standard, which allows electronic devices/devices to send or receive up to 100W of power with different voltage and current distribution through its USB Type C port (supporting bidirectional power flow). These products allow discrete voltages of 5, 9, 12, 15 and 20V and currents up to 5A. The PD standard uses a PD contract to establish the relationship between a PD device (in this case, a card-based USB Type C adapter) and a connected device. This contract is an agreement between two PD devices connected through a Type C cable. There are many nuances, but the most basic constraints for each device are: (1) the source must establish and maintain an agreed-upon voltage within +/-4% while delivering up to an agreed-upon maximum current; (2) The sink can pull any amount of current from 0A all the way up to the agreed upon maximum current. The current cannot exceed the maximum value for more than a few milliseconds.

A PD charger/provider/power supply is a device that a PD contract agrees to provide power to its partner devices. A PD consumer/load/receiver is a device in a PD contract that agrees to accept power from its partner device. A PD dual role port (DRP) device is a device capable of acting as either a source or a sink, depending on what it is connected to and its internal state. Card USB Type C converter is a DRP device. The adapter can provide wireless USB C source power limited only by the available battery pack. The user experience can be customized by selecting a longer run time or shorter run time battery pack, and can be larger or smaller as needed. The battery pack is sized to suit ergonomic preferences.

According to the concept and spirit of this creation, the card-type USB Type C adapter proposed by this creation can be combined with a portable power supply with corresponding interfaces through different connector interfaces, such as plug-in card (gold finger) connection, DIN connection, etc.

According to one aspect of this invention, please refer to Figures 1-3. The above figures depict that the card-type USB Type C adapter proposed in this invention is connected to a portable power supply with a corresponding interface through a plug-in card (gold finger).

4 shows an internal circuit block diagram 400 of a portable power supply 401 (such as but not limited to a battery box) combined with a card-type USB Type C converter 402, wherein an external charger (such as a USB type C adapter) charges the battery box 401 or The battery box 401 supplies power to external devices by converting and transmitting power through the card-type USB Type C converter 402.

Continuing with the above, the circuit block diagram 400 of FIG. 4 illustrates the relative relationship between the card-type USB Type C adapter 402 and the chargeable/dischargeable battery pack module 410 inside the battery box 401. The coupling between the USB Type C adapter 402 and the chargeable/dischargeable battery module 410 is by designing the USB Type C adapter 402 as a thin board, so that it can be easily inserted into the expansion card slot of the portable power supply 401 The golden finger connector 420 in the portable power supply 401 is connected to each other as a power transmission interface. In addition, the portable power supply 401 can be connected to an external device (including but not limited to a power tool) if it is inserted into a plurality of connection terminals 430 . When connected, the SENS switch of the portable power supply operates and notifies the first power supply controller 411, which controls the external power transmission to be turned off. Only USB type C charging can be performed. If the battery power is insufficient, USB type C can be inserted immediately. The adapter charges the battery module 410 in the portable power supply 401, and the battery module 410 can be charged while being discharged. In one embodiment, the rechargeable/dischargeable battery pack module 410 in the portable power supply 401 may include a plurality of rechargeable and dischargeable batteries connected in series and parallel. The battery box 401 also includes a battery pack protection module 440, which can provide overvoltage, overtemperature and overcharge protection for the battery pack module. The battery box 401 also includes circuits such as an identification circuit (ID), a thermistor circuit (TH), a wake-up circuit (RP), and a contact sensor (T_SENS), which are respectively connected to different terminals of the golden finger connector 420 .

The first USB type C port of the card-type USB Type C converter 402 is a bidirectional port. In addition to providing external power to charge the battery module 410, its maximum power supply is 100W; if the first USB type C port 451 is used alone, When powering, it can also provide maximum power (power supply) of 100W to external devices. The second USB type C port 453 only provides external power, and the maximum power reaches 100W when used alone; if the first USB type C port 451 and the second USB type When the C port 453 is powered together, the maximum power of 100W is distributed and used under the control of the first power supply controller 411 and the second power supply controller 412 (the distribution value is preset during design); if USB Type A or Micro Port 455 is powered and can provide a maximum power output of 12W 5V/2A. If the first USB type C port 451, the second USB type C port 453 and the USB Type A or Micro port 455 are powered at the same time, the USB Type A or Micro The voltage of the port 455 remains unchanged; the output power of the first USB type C port 451 and the second USB type C port 453 depends on how much power the battery pack module can provide, and the sum of the two does not exceed 200W.

The following describes the working principles of various removable card-type charging/discharging portable power supplies and various removable card-type USB type C charging/discharging adapters, as well as AC USB type C adapters or powered devices. Explain one by one, when the converter is plugged into the battery pack module, the power trigger control After receiving the PWR_Spark signal from the VBatt terminal, the unit (PWR Trigger SW Control) 413 will send the power at the VBatt terminal to the power regulator (PWR Regulator) 414, adjust the voltage, and then send it to the control module (Control Module) 415, so that it can adjust the VCC_SW The switch is closed to supply power VCC to the first power supply controller 411 and the second power supply controller 412 for normal operation. On the contrary, in order to prevent the card-type USB Type C converter 402 from being plugged into the battery box for a long time without being used, thus causing static circuit loss and damaging the life of the battery pack, automatic timing is designed. As long as the power circuit is not used for more than 1 hour or for a period of time, The control module (Control Module) 415 will notify the power trigger control unit (PWR Trigger SW Control) 413 through the Auto_off terminal to cut off the power regulator (PWR Regulator) supplying power to the control module (Control Module). The VCC_SW switch becomes open-circuit, and the VCC of the first power supply controller 411 and the second power supply controller 412 becomes power-off and inactive. In this state, there are two methods to turn on the charge/discharge circuit again: 1. Click the wakeup switch (Wakeup switch) 457; 2. Unplug/insert the card-type USB Type C converter 402 once to let PWR Spark Recharging the trigger power trigger control unit (PWR Trigger SW Control) 413 can restore the normal operation of the control module (Control Module) 415/the first power supply controller 411 and the second power supply controller 412. The following explanations are all based on the normal power supply status of the battery pack connected to the transfer device, so the above operations will not be repeated.

The first USB type C port of the card-type USB Type C converter 402 is a bidirectional port that can be charged/discharged. When an external charging device such as USB type C is inserted into the first USB type C port 451, it is through the first power supply controller 411 The CC1_A/CC2_A pin communicates with external devices. When the communication protocol declares charging, the source (Source) end is determined, and the power of the adapter enters the PMOS SW1 switch through VBus1. At this time, the PMOS SW1 switch is controlled into a closed-circuit state, PD PWR Switch 1 The switch is controlled into an open circuit state, and power enters the ISP_C1 and ISN_C1 current detection nodes from PMOS SW1. At the same time After being detected by the first power supply controller, it enters the first buck/boost converter (Buck/Boost Converter 1) 416. At the same time, the control module (Control module) 415 monitors the Vbatt potential provided by the VBatt_SNS pin, and the control module The control module 415 is connected to the first power supply controller 411 through the UART pin, and controls the first buck/boost converter (Buck/Boost Converter 1) 416 through I2C1 to use trickle current or constant current (CC, Constant current) or constant voltage (CV, constant voltage) mode to charge. At the same time, the first power supply controller 411 also controls the PMOS SW2 switch to close the circuit, and the power converted by the first buck/boost converter (Buck/Boost Converter 1) 416 enters through the gold finger connector (Card Connector) 420 The battery box 401 starts charging.

The first USB type C port of the card-type USB Type C converter 402 is a bidirectional port. When an external device is inserted into the first USB type C port and requires power, the first USB type C port becomes a sink (sink) port, and through the third The CC1_A & CC2_A pins of a power supply controller 411 communicate with external powered devices. When the communication declares that power is required, the power of the battery module enters through the card connector 420 and is first powered. The controller controls the PMOS SW2 switch to be a closed circuit. At the same time, the circuit of the PMOS SW4 power path is not required to provide power, so it is controlled by the second power supply controller 412 to be open circuit and does not operate. The following circuits also do not operate. The battery pack module 410 The power only enters the first buck/boost converter (Buck/Boost Converter 1) 416 through the closed-circuit PMOS SW2 switch for external charging. The first power supply controller 411 receives the required power from the CC1_A/CC2_A pin no matter how it operates. After the message is determined, I2C1 is used to control which mode the first buck/boost converter (Buck/Boost Converter 1) 416 should use, such as trickle/CC/CV mode charging, and then the Sink power enters ISN_C1 & ISP_C1 current detection The node is monitored by the first power supply controller 411, and then enters the two switch nodes of the PMOS SW1 switch and the PD PWR Switch 1 switch. At this time, the first power supply controller 411 determines It is a Sink, so the PMOS SW1 is controlled to be open and the PD PWR Switch 1 is closed, allowing power to flow through the PD PWR Switch 1 switch and transmitted to the VBus1 terminal of the first USB type C port 451 to provide power to external devices. How much is required to be transferred The current/voltage is controlled by the first power supply controller and the external device after the communication protocol is announced and determined.

The USB type A or Micro port 455 of the card-type USB Type C converter 402 is the sink end of the one-way power supply port. When an external device is inserted into the USB type A or Micro port 455, it communicates with the external device. When the communication declares that the power supply is confirmed, the battery pack The power flows through the fixed buck converter (Fixed Buck Converter 1) 417 with a fixed voltage of 5V through the Card Connector 420 and then enters the ISP_A and ISN_A current detection nodes for monitoring by the first power supply controller. The EN pin controls the activation of the buck converter (Fixed Buck Converter 1) 417 to provide power, and then enters the NMOS SW3 switch that has been controlled into a closed circuit and then enters the VBus2 terminal of the USB type A or Micro port 455 to supply 5V power to external devices. While using the USB type A or Micro port 455 for power, if other devices are plugged into the first USB type C port 451 or the second USB type C port 453 for use, whether they are powered by the battery or charged will not be affected.

The second USB type C port 453 of the card-type USB Type C converter 402 is a one-way power supply port. When the external device is only plugged into the second USB type C port 453, it communicates with the external device. When the communication is announced, the battery pack is required to provide power. When it is the Sink terminal, the battery power is transmitted to the PMOS SW4 switch through the golden finger connector (Card Connector) 420; at this time, the switch is controlled by the second power supply controller 412 to a closed circuit state, and at this time the first power supply controller 411 The detected signals such as battery ID, CC1_A and CC2_A are VBatt/TH and other voltages detected through UART and control module (Control module) 415. Determining the relevant signals of the battery pack module, the Dic_Ctl of the control module (Control module) 415 communicates with the second power supply controller 412 how much power should be provided, such as the first USB type C port 451 and the second USB type C port. 453 provides 50% power when the Sink supplies power at the same time. If the second USB type C port 453 or the first USB type C port 451 supplies power alone, it will provide 100% power. The design can be modified depending on the power of the current battery module; if the USB type There is no external device connected to the A or Micro port. At this time, the NMOS SW3 switch is controlled by the first power supply controller 411 to be open circuit, and the buck converter (Fixed Buck Converter 1) 417 is also connected by the EN of the first power supply controller 411. The pin is controlled to be inactive, and the PMOS SW1 switch and the PD PWR Switch 1 switch are also controlled into an open circuit state. On the contrary, the first USB type C port 451 or USB type A or Micro port 455 receives the Source or Sink of the external device. When sending messages, they perform independent actions according to needs. Continuing the above, the PMOS SW4 switch closes the circuit and transmits the battery power to the second buck/boost converter (Buck/Boost Converter 2) 418. It needs to control which mode of trickle/CC/CV power supply is controlled by the second buck/boost converter 2. CC1_B and CC2_B of the power supply controller 412 communicate with the external device and then the converted power is sent to the NMOS SW3 switch and then enters the VBus3 terminal to output power to the external device, and the exported current will flow through the second drop The buck/boost converter (Buck/Boost Converter 2) monitors the supply current through the IS-/IS+ of the second power supply controller. How much current/voltage VBus3 supplies to the external device is determined by the second power supply controller 412 and The control module (Control module) 415 and the three-party communication protocol of the external device are announced and controlled. A single USB type C port only provides a maximum power of 100W according to the circuit design.

Same as the state described in the previous paragraph, if there are devices in the first USB type C port 451 and the second USB type C port 453 that require power supply at the same time; at this time, the first power supply controller 411 will use the UART and the control module (Control module) 415 The proportion of each of the above two ports of the communication protocol to be allocated (unit: % W) of current power. If the battery power (unit Whr) is relatively large, the two USB type C ports can be designed to share 100% of the output to a maximum of 100W. If the battery power (unit Whr) is relatively small, each will give 50 %output.

In the same state as described in the previous paragraph, the second USB type C port 453 is in the power supply state. At this time, the first USB type C port 451 can also provide charging to the battery pack through the external USB type C adapter. The circuit operation is as mentioned above on the source side. The charging control program provides charging for the battery pack, and the card-type USB Type C converter 402 charges the rechargeable battery pack at a maximum of no more than 20V/5A 100W (limited by the conditions of the battery pack and adapter).

The same state as described in the previous paragraph, the second USB type C port 453 is in the power supply state. At this time, the battery pack can be charged through the external USB type C adapter through the first USB type C port 451. The circuit operation is as mentioned above for the charging of the source end. The control is provided to charge the battery pack. The card-type USB Type C adapter 402 can charge the battery pack up to 100W. If you must use an electric tool at this time, you can insert the for Tool Terminal plug of the battery box into the electric tool to connect it. When used, the Det.Switch switch specially designed to be added to the battery box will be triggered when inserted. When the electric tool is combined with the battery box, the Det.Switch switch will be pressed. The Det.Switch switch sends a signal to the T_SENS pin through the gold finger connector. (Card Connector) 420 enters the first power supply controller 411. At this time, the first power supply controller 411 turns off the buck converter (Fixed Buck Converter 1) 417, PD PWR Switch switch and other paths through EN and does not provide external power through the UART interface. The connection control module (Control module) 415 opens all the external power supply paths of the second power supply controller 412 and does not operate, and no longer provides access to the first USB type C port 451, the second USB type C port 453, and the USB type A or Micro port. 455 linked When the external device is powered, only the first USB type C port 451 is allowed to charge the battery box 401 .

According to another aspect of this invention, please refer to Figures 5-7. These figures will depict the card-type USB Type C adapter proposed in this invention connecting a portable power supply with a corresponding built-in DIN interface through DIN.

Figure 5 shows a charging system 500 related to the card-type USB Type C converter 502 proposed in this invention. This system includes: a portable power supply 501, a card-type USB Type C converter 502 and a USB Type C charging adapter 503. The left picture of Figure 5 is a cross-sectional view of a portable power supply 501 with a built-in DIN interface and a card-type USB Type C adapter 502. The portable power supply (such as a machine tool battery box) 501 contains a tool battery pack 501a, a tool Battery pack battery management circuit integration (PCBA) 501b, tool battery pack power terminal board 501c coupled to the tool battery pack battery management circuit integration 501b, DIN connector female seat 501d; DIN connector of card-type USB Type C adapter 502 The male plug 502e is coupled with the DIN connector female seat 501d. The right picture of Figure 5 is a front view of a portable power supply (such as a machine tool battery box) 501 with a built-in DIN interface and a card-type USB Type C converter 502. The card-type USB Type C converter 502 has two sets of USB type C ports (502b, 502c) and a set of USB type A or Micro ports 502d. The USB type C port 502c on the left is a two-way charge/discharge port and can be used as a USB type C adapter 503 for a portable power source (such as a tool machine battery box) The charging port for charging the battery pack in 501.

Figure 6 shows a schematic diagram of the application scenario of the card-type USB Type C converter 602 proposed in this invention combined with a machine tool battery box 601 with a built-in DIN interface. The right side of Figure 6 shows that the card-type USB Type C converter 602 combined with the machine tool battery box 601 with a built-in DIN interface can be used as an electric tool. The power source of the machine 605 also provides a charging interface for the card-type USB Type C converter 602 to charge the battery pack in the machine tool battery box 601; the left side of Figure 6 shows that the card-type USB Type C converter 602 combination has a built-in DIN The interfaced machine tool battery box 601 can be used as a power source (equivalent to a mobile power supply) for various electronic devices/devices, such as a laptop 607 or a smartphone 609, i.e., charging them, and also provides a USB Type C adapter. 602 is a charging interface for charging the battery pack in the machine tool battery box 601.

Figure 7 shows an internal circuit block diagram 700 of a battery box 701 with a built-in DIN interface combined with a card-type USB Type C converter 702, in which an external charger (eg, USB C adapter) charges the battery box 701 or the battery box 701 pairs The external device is powered by a card-type USB Type C converter 702 that converts and transmits power.

Continuing with the above, the circuit block diagram 700 of FIG. 7 illustrates the relative relationship between the card-type USB Type C adapter 702 and the chargeable/dischargeable battery module inside the battery box 701 with a built-in DIN interface. The coupling between the USB Type C converter 702 and the rechargeable/dischargeable battery module is achieved by designing the USB Type C converter 702 as a board card with a DIN connector male plug, making it convenient to install in the battery box. The DIN connector female socket on 701 is coupled as a power transmission interface. In addition, the battery box 701 can be connected to an electric tool through a plurality of connection terminals. When connected, the T_SENS switch of the battery box operates and notifies the first power supply controller, which will control the external power transmission and turn off the external power supply. Only USB type C charging can be performed. If the battery power of the power tool is insufficient, the USB type C adapter can be inserted immediately. The battery module in the battery box 701 of the machine tool is charged, and the battery module can be charged while being discharged.

For the remaining operating principles of the circuit block diagram 700 in Figure 7, except that the connection interface is Except for replacing the card-type (gold finger) connection method with the DIN connector interface, the remaining charge/discharge control methods are basically the same as the circuit block diagram 400 of FIG. 4 and will not be described again.

Compared with conventional technology, this creation has the following advantages:

(1). Generally, machine tool batteries do not have any equipment other than the battery terminal connection interface to provide a connection device for charging/discharging the battery pack. However, this patent can provide a variety of external connection devices.

(2). Devices with USB C PD3.0 fast charging technology can generally only charge or discharge in and out of the USB type C port in one direction. In addition to using the newer USB type C PD3.1/QC4.0, this patented design In addition to fast charging technology, it also adds a converter circuit that can boost/step down bidirectional charge/discharge. It can transfer power to other external devices and also provide charging for the battery pack. If the battery pack Whr capacity is large, it can provide 2 USBs at the same time. Type C ports can each use up to 100W of power, or can provide USB type A or Micro ports with up to 12W of power. In addition, it also provides connection methods other than the battery terminals of the machine tool battery pack itself for charging/discharging technology with the battery.

The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them. Although the present invention and its benefits are described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the foregoing embodiments. Modifications are made to those described, or equivalent substitutions are made to some of the technical features; however, these modifications or substitutions do not cause the essence of the corresponding technical solution to deviate from the scope of the claims of this invention.

201:Portable power supply

201-1: Card slot

201e: Board guide rail

202:External plug-in card USB Type C adapter

202e: Insert into guide groove

Claims (10)

A card-type USB Type C transfer device comprises: a substrate; a first connection interface, arranged on the substrate, for coupling and electrically connecting an external portable power supply, so that the card-type USB Type C transfer device is coupled with the external portable power supply; a second connection interface, comprising a first USB type C port, a second USB type C port and a USB type A or Micro port, arranged on the substrate, for coupling and electrically connecting an external device; an internal circuit, arranged on the substrate, electrically connecting the first connection interface and the second connection interface, and arranged between the external portable power supply and the external device, providing more than one power transmission path, which at least includes: a bidirectional power transmission path, connecting the first connection interface and the first USB type C port, providing bidirectional charging and discharging functions; A control module is electrically connected to a power regulator and is disposed in the internal circuit. When the card-type USB Type C adapter is coupled to the external portable power supply and is not used for a preset time, the control module cuts off the power supply of the external portable power supply to the power regulator, so that the above-mentioned one or more power transmission paths all stop working to protect the card-type USB Type C adapter; A wake-up switch is electrically connected to a power trigger control unit, and the above-mentioned one or more power transmission paths are restored to work by triggering the power trigger control unit; Wherein, the power trigger control unit is electrically connected to the control module and the power regulator. The card-type USB Type C adapter as described in claim 1, wherein the first connection interface is a connector interface including a plurality of connection terminals, and the connector interface is a gold finger connector interface or a DIN connector interface. The card-type USB Type C adapter described in claim 1 further includes a pair of insertion guide bars disposed on both sides of the card-type USB Type C adapter to guide the card-type USB Type C adapter to be embedded in the external device. Carry power supply. The card-type USB Type C converter as described in claim 1, wherein the control module controls a switch electrically connected between the external portable power supply and the one or more power transmission paths to open a circuit. Cut off the power supply of the external portable power supply to the power regulator. The card-type USB Type C converter of claim 1, wherein the bidirectional power transmission path is through a first power supply controller electrically coupled between the first connection interface and the first USB type C port. An external electronic device connected to the first USB type C port communicates. (i) When the external electronic device is a power supply device, the power of the external electronic device is controlled by the first power supply controller to pass the power to the power supply via a charging path. The external portable power supply supplies power; (ii) when the external electronic device requires power, the power of the external portable power supply is controlled by the first power supply controller to power the external electronic device through a discharge path. The card-type USB Type C adapter according to claim 1, wherein the above one or more power transmission paths further include a first unidirectional power transmission path connecting the first connection interface and the second USB type C port, The external portable power supply provides a one-way power supply function. The card-type USB Type C adapter as described in claim 6, wherein the first one-way power transmission path is through a second power supply control electrically coupled between the first connection interface and the second USB type C port. The device communicates with an external electronic device connected to the second USB type C port. When the external electronic device requires power, the power of the external portable power supply is controlled by the second power supply controller to supply the power to the external device through a discharge path. Power supply for electronic equipment. The card-type USB Type C adapter as described in claim 1, wherein the above one or more power transmission paths further include a second one-way power transmission path connecting the first connection interface and the USB type A or Micro port, The external portable power supply provides a one-way power supply function. The card-type USB Type C converter as described in claim 8, wherein the second one-way power transmission path is through a first power supply controller electrically coupled to the first connection interface and the USB type A or Micro port. Communicates with an external electronic device connected to the USB type A or Micro port. When the external electronic device requires power, the power of the external portable power supply is controlled by the first power supply controller to supply the power to the external device through a discharge path. Power supply for electronic equipment. The card-type USB Type C converter as described in claim 1, wherein the above-mentioned first USB type C port and the above-mentioned second USB type C port are each connected to an external electronic device at the same time and are required to be powered by the battery pack. , through an agreement to implement the proportion of individual distribution of power supply.