Power supply adapter structure for heating clothes

Abstract

The utility model discloses a power supply adapter structure used for heating clothes, comprising a connector which at least comprises an end seat, a DC jack and a type-C jack arranged at different sides of the end seat, and a PD protocol chip packaged in the end seat, the DC jack and the type-C jack are connected in parallel, and a signal handshake end of the type-C jack is connected with a signal handshake end of the PD protocol chip; one end of the wire is connected with the output ends of the DC socket and the type-C socket, and the other end of the wire is connected with the heating unit. And the PD protocol chip is an FS312BL PD handshake protocol chip. The beneficial effects of the utility model are that the DC jack and the type-C jack which are connected in parallel are arranged, the DC jack is utilized to input the output voltage of the 12V special mobile power supply into the heating unit, and the type-C jack and the PD protocol chip are utilized to decoy the universal mobile power supply to output the 12V voltage and input the 12V voltage into the heating unit, so that the heating clothes can be adapted to more mobile power supplies, and the heating efficiency is improved. And the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating clothing accessories, in particular to a power supply adapter structure for heating clothing. Background Art

[0002] The current power supply systems for heated clothing basically use USB power supply or DC power supply, but these two power supply heads have obvious disadvantages.

[0003] For example, the common USB power supply protocol can only request a 5V voltage from the power bank. When the load requests a higher power, the power bank's discharge efficiency decreases, causing severe heat generation. Furthermore, many power banks are factory-set with a peak output power of only 5V*3A, or a maximum of 15W. The DC interface, on the other hand, has no protocol requirements, so its power connector can freely choose to use 5V, 7.4V, 12V, or even 20V. This high-voltage solution can effectively alleviate power bank heating, but the DC solution requires a custom output voltage for the power bank, resulting in a one-to-one binding between the heating garment and the power bank. If the power bank is lost or damaged, it is difficult for the user to quickly purchase a suitable power bank.

[0004] In response to this, decoy cables have emerged on the market. These DC decoy connectors are based on the handshake mechanism of the PD protocol chip. When connected to a PD charger (or power bank), the PD chip on the receiving end performs a handshake with the charger's chip. Upon successful handshake, the charger will output the correct voltage as required. This mechanism enables the DC decoy connector to decoy voltages of 5V, 9V, 12V, 15V, 18V, or 20V from a USB PD / QC-compliant charger, providing fast power or charging for devices.

[0005] However, the existing 12V decoy cable has a USB port and a DC port at the input and output ends, and is a detachable structure at both ends, which is not suitable for heating clothing. In addition, the input end of the 12V decoy cable has only one USB port. Similarly, if the mobile power bank is lost or damaged, it is difficult for users to quickly purchase a suitable mobile power bank. Utility Model Content

[0006] In view of the above problems, the present invention proposes a power supply adapter structure for heating clothing, which mainly solves the problem of insufficient versatility of existing voltage deception lines.

[0007] In order to solve the above technical problems, the technical solutions of the present utility model are as follows:

[0008] A power supply adapter structure for heating clothing, comprising:

[0009] A connector comprising at least a terminal block, a DC socket and a type-C socket provided on different sides of the terminal block, and a PD protocol chip encapsulated inside the terminal block, wherein the DC socket and the type-C socket are connected in parallel, and a signal handshake terminal of the type-C socket is connected to a signal handshake terminal of the PD protocol chip;

[0010] A wire, one end of which is connected to the output end of the PD protocol chip, and the other end of which is connected to the heating unit.

[0011] In some implementations, the PD protocol chip is a FS312BL PD handshake protocol chip.

[0012] In some embodiments, the differential signal positive pole D+ of the type-C socket is connected to the signal end DP of the PD protocol chip, the differential signal negative pole D- of the type-C socket is connected to the signal end DM of the PD protocol chip, and the detection pin CC1 of the type-C socket is grounded after passing through the resistor R3 and the diode D1 in sequence, wherein the cathode of the diode D1 points to the resistor R3, and the cathode of the diode D1 is connected to the detection end CC1 of the PD protocol chip, the bus power VBUS of the type-C socket and the positive pole of the DC socket are connected in parallel and connected to one end of the heating unit, and the other end of the heating unit and the negative pole of the DC socket are grounded.

[0013] In some embodiments, the bus power VBUS of the type-C socket is grounded via a resistor R1 and a diode D2, wherein the cathode of the diode D2 points to the resistor R1, the power supply terminal VDD of the PD protocol chip is connected to the cathode of the diode D2, and the power supply terminal VDD of the PD protocol chip is grounded via a capacitor C1.

[0014] In some implementations, the control terminal FUNC of the PD protocol chip is grounded via a resistor R2.

[0015] The beneficial effects of the present invention are as follows: by setting a DC socket and a type-C socket in parallel, the output voltage of a 12V dedicated mobile power supply is input into the heating unit using the DC socket, and the type-C socket and the PD protocol chip are used to trick the universal mobile power supply into outputting a 12V voltage, which is then input into the heating unit, so that the heated clothing can adapt to more mobile power supplies and improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a power supply adapter structure for heating clothing disclosed in an embodiment of the present utility model;

[0017] Figure 2This is a circuit schematic diagram of the DC socket, type-C socket and PD protocol chip disclosed in an embodiment of the present utility model. DETAILED DESCRIPTION

[0018] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the drawings only illustrate portions relevant to the present invention, not all of it.

[0019] This embodiment proposes a power supply adapter structure for heating clothing, such as Figure 1 Shown, including:

[0020] Connector 1 includes at least a base 101, a DC jack 102 and a Type-C jack 103 disposed on different sides of the base, and a PD protocol chip (not shown) encapsulated within the base 101. The DC jack 102 and the Type-C jack 103 are connected in parallel, and the signal handshake terminal of the Type-C jack 103 is connected to the signal handshake terminal of the PD protocol chip.

[0021] One end of the wire 2 is connected to the output end of the PD protocol chip, and the other end is connected to the heating unit (not shown in the figure, omitted). The heating unit and the wire 2 are not detachable.

[0022] In this embodiment, by setting a DC socket and a type-C socket in parallel, the output voltage of the 12V dedicated mobile power supply is input into the heating unit using the DC socket, and the type-C socket and the PD protocol chip are used to trick the universal mobile power supply into outputting 12V voltage, and inputting it into the heating unit, so that the heated clothing can adapt to more mobile power supplies and improve the user experience.

[0023] The above-mentioned PD protocol chip can be any integrated circuit chip that supports the PD protocol. The following uses the FS312BLPD handshake protocol chip and the 24-pin type-C socket for specific description.

[0024] like Figure 2As shown in Table 1, the positive differential signal D+ of the Type-C socket is connected to the signal terminal DP of the PD protocol chip, the negative differential signal D- of the Type-C socket is connected to the signal terminal DM of the PD protocol chip, and the detection pin CC1 of the Type-C socket is connected to ground after passing through resistor R3 and diode D1. The cathode of diode D1 points to resistor R3, and the cathode of diode D1 is connected to the detection terminal CC1 of the PD protocol chip. The bus power VBUS of the Type-C socket and the positive pole of the DC socket are connected in parallel and connected to one end of the heating unit. The other end of the heating unit and the negative pole of the DC socket are grounded. The above-mentioned positive differential signal D+, negative differential signal D-, and detection pin CC1 can be considered as the signal handshake end of the Type-C socket 103. Correspondingly, the signal terminal DP, signal terminal DM, and detection terminal CC1 can be considered as the signal handshake end of the PD protocol chip.

[0025] Table 1 Type-C pin definition

[0026]

[0027] In the above scheme, the A6 and A7 ports (differential positive and negative signals) of the type-C socket provide differential signals to the FS312BL PD handshake protocol chip, which can be used to configure different input voltages and currents according to device requirements, thereby achieving faster charging speeds. The A5 port (detection pin CC1) of the type-C socket is connected to the detection terminal CC1 of the FS312BL PD handshake protocol chip to check the forward and reverse insertion of the type-C socket, as well as the PD fast charging protocol. A diode D1 is also set before the ground terminal GND, and its negative pole points to the resistor R3. When the power supply is connected in reverse, the reverse cutoff characteristic of the diode D1 can prevent current from entering the circuit, thereby protecting the components in the circuit from damage. Through the signal handshake terminal of the type-C socket 103, the charging protocol chip of the external power supply is coupled with the signal handshake terminal of the PD protocol chip. After the protocol handshake, the external power supply outputs the expected voltage to the bus power VBUS of the type-C socket. Finally, the bus power VBUS of the type-C socket and the positive pole of the DC socket are connected in parallel and connected to one end of the heating unit. Since the design of connector 1 of this solution is relatively compact, only one socket has power input at the same time. For example, the voltage output from A5 (bus power VBUS) of the type-C socket is directly output to the heating unit, and the external 12V voltage is directly input to the heating unit through the DC socket.

[0028] Specifically, the bus power supply VBUS of the Type-C socket is connected to ground via resistor R1 and diode D2. The cathode of diode D2 points to resistor R1, and the power supply terminal VDD of the PD protocol chip is connected to the cathode of diode D2. Furthermore, the power supply terminal VDD of the PD protocol chip is connected to ground via capacitor C1. Clearly, based on the above solution, the voltage output from the bus power supply VBUS of the Type-C socket also serves as the power supply for the PD protocol chip. It is current-limited by the parallel resistor R1 and then input to the power supply terminal VDD of the PD protocol chip.

[0029] The control terminal FUNC of the PD protocol chip is grounded after passing through the resistor R2.

[0030] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the essence of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A power supply adapter structure for heating clothing, characterized in that: include: A connector comprising at least a terminal block, a DC socket and a type-C socket provided on different sides of the terminal block, and a PD protocol chip encapsulated inside the terminal block, wherein the DC socket and the type-C socket are connected in parallel, and a signal handshake terminal of the type-C socket is connected to a signal handshake terminal of the PD protocol chip; A wire, one end of which is connected to the DC socket and the output end of the type-C socket, and the other end of which is connected to the heating unit.

2. The power supply adapter structure for heating clothing according to claim 1, characterized in that: The PD protocol chip is the FS312BL PD handshake protocol chip.

3. The power supply adapter structure for heating clothing according to claim 1 or 2, characterized in that: The differential signal positive electrode D+ of the type-C socket is connected to the signal end DP of the PD protocol chip, and the differential signal negative electrode D- of the type-C socket is connected to the signal end DM of the PD protocol chip. The detection pin CC1 of the type-C socket is grounded after passing through the resistor R3 and the diode D1 in sequence, wherein the cathode of the diode D1 points to the resistor R3, and the cathode of the diode D1 is connected to the detection end CC1 of the PD protocol chip. The bus power VBUS of the type-C socket and the positive electrode of the DC socket are connected in parallel and connected to one end of the heating unit. The other end of the heating unit and the negative electrode of the DC socket are grounded.

4. The power supply adapter structure for heating clothing according to claim 3, characterized in that: The bus power VBUS of the type-C socket is grounded through a resistor R1 and a diode D2, wherein the cathode of the diode D2 points to the resistor R1, the power supply terminal VDD of the PD protocol chip is connected to the cathode of the diode D2, and the power supply terminal VDD of the PD protocol chip is grounded after passing through a capacitor C1.

5. The power supply adapter structure for heating clothing according to claim 2, characterized in that: The control terminal FUNC of the PD protocol chip is grounded via a resistor R2.

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