A power supply device

Abstract

Embodiments of this application disclose a power supply device relating to the field of protection circuits. According to the power supply device provided in this application, a temperature detection module detects the temperature of the voltage terminal of a first connection module and transmits the temperature value to the processing module. The processing module determines whether the temperature of the voltage terminal of the first connection module exceeds a preset temperature. If the temperature exceeds the preset temperature, it stops receiving the operating voltage via the voltage terminal of the first connection module and transmits power supply stop information to the power supply device via the communication terminal. As a result, the power supply device stops outputting the operating voltage to the power supply device based on the power supply stop information. In other words, if overheating occurs in the connector of the power supply device provided in this application, the power supply device not only stops receiving the operating voltage from the power supply device but also instructs the power supply device, via the communication connection with the power supply device, to stop outputting the operating voltage to the power supply device.

Description

Technical Field

[0001] <Cross - reference to related applications> This application claims priority from a Chinese patent application with application number 202420923580.0 filed on April 29, 2024, and titled "A Power Supply Device", and the entire content of this Chinese patent application is incorporated herein by reference.

[0002] This application relates to the field of protection circuits, particularly to power supply devices.

Background Art

[0003] In recent years, power supply devices such as chargers and mobile power banks that use Type - C as the output port connector have become very popular. The Type - C port is a new type of USB port announced by the USB Implementers Forum (USB - IF) to replace the conventional USB Micro - B and USB - A interfaces. The connector of the Type - C port has the characteristics of small geometric size, high transmission speed, and high charging efficiency at the same time, so it is favored by many manufacturers and consumers.

[0004] When these power supply devices such as mobile power banks and chargers are applied in the market, the failure rate of the ports of the connectors is high, and internal short - circuits of the power supply devices further occur. As a result, the connectors of the power supply devices are continuously heated and melted, and further the plastic shells of the power supply devices of the ports are melted, even bringing the risk of serious fires.

Summary of the Invention

[0005] To solve the above - mentioned technical problems, embodiments of this application provide a kind of power supply device. The technical solutions are as follows.

[0006] In a first embodiment, the present invention provides a power supply device comprising a processing module, a first connection module, a temperature detection module, and a first port protection module. The temperature detection module is positioned within a preset range of the voltage terminals of the first connection module, and the voltage terminals of the first connection module are used to receive the operating voltage input from the power supply device to the power supply device. The processing module includes a detection terminal, a voltage terminal, and a communication terminal, the detection terminal of the processing module is connected to the output terminal of the temperature detection module, the temperature detection module detects the temperature of the voltage terminal of the first connection module and transmits the temperature value to the processing module. The voltage terminal of the processing module is connected to the first terminal of the first port protection module, and the second terminal of the first port protection module is connected to the voltage terminal of the first connection module. When the processing module determines that the temperature exceeds a preset temperature, it controls the first port protection module to switch to an off state, thereby stopping the reception of the operating voltage via the voltage terminal of the first connection module. The communication terminal of the processing module is connected to the communication terminal of the first connection module, and the communication terminal of the first connection module is used for communication with the power supply device. When the processing module determines that the temperature exceeds the preset temperature, it transmits power supply stop information to the power supply device via the communication terminal of the first connection module, and the power supply device stops outputting the operating voltage to the power supply device based on the power supply stop information.

[0007] The beneficial effects brought about by the technical solutions provided in some embodiments of this application include at least the following: According to the power supply device provided in this application, a temperature sensing module detects the temperature of the voltage terminals of a first connection module and transmits the temperature value to a processing module, which determines whether the temperature of the voltage terminals of the first connection module exceeds a preset temperature, and if the temperature exceeds the preset temperature, it stops receiving the operating voltage via the voltage terminals of the first connection module and transmits power supply stop information to the power supply device via the communication terminal, thereby causing the power supply device to stop outputting the operating voltage to the power supply device based on the power supply stop information. In other words, the power supply device provided in this application not only stops receiving the operating voltage of the power supply device when the connector of the power supply device overheats, but also instructs the power supply device to stop outputting the operating voltage to the power supply device via a communication connection with the power supply device. Compared to conventional one-way protection that only stops receiving the operating voltage, this application can better protect the power supply device during the power supply process and can avoid problems such as circuit failure of the power supply device or melting of the connector shell due to overheating. [Brief explanation of the drawing]

[0008] To more clearly illustrate the embodiments of this application or the technical solutions in the present art, the drawings that may be used in the description of the embodiments or the present art are briefly described below. Obviously, the drawings in the following description are only a few embodiments of this application. Those skilled in the art can obtain other drawings from these without any creative effort. [Figure 1] This is a schematic diagram of the structure of a power supply device as a power receiving device provided in one embodiment of this application. [Figure 2] This is a schematic diagram of the structure of a power supply device as a power supply device provided by one embodiment of this application. [Figure 3] This is a schematic diagram of the structure of a power supply device provided by one embodiment of this application. [Figure 4] This is a schematic diagram of the structure of a power supply device provided by one embodiment of this application. [Figure 5]This is a schematic diagram of the structure of a power supply device provided by one embodiment of this application. [Figure 6] This is a schematic diagram of the structure of a power supply device provided by one embodiment of this application. [Figure 7] This is a schematic diagram of the structure of a power supply device provided by one embodiment of this application. [Figure 8] This is a schematic diagram of the structure of a power supply device provided by one embodiment of this application. [Modes for carrying out the invention]

[0009] The technical solutions of the embodiments of this application will be described clearly and completely below with reference to the drawings of the embodiments of this application. Clearly, the embodiments described are only a part of, and not all, of, the embodiments of this application. All other embodiments that a person skilled in the art can obtain based on the embodiments of this application without requiring inventive work are all within the scope of protection of this application.

[0010] The terms “first,” “second,” etc., used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms “equipment,” “includes,” “have,” and any variations thereof, as used herein, are intended to cover non-exclusive inclusion unless otherwise specified or limited. For example, a process, method, system, product, or apparatus comprising a set of steps or units is not limited to the listed steps or units, but further includes steps or units that are not selectively listed, or further comprises other steps or units that are selectively specific to those processes, methods, products, or apparatus. A person skilled in the art will be able to understand the specific meaning of the terms used herein in this application depending on the specific context. The term “plural” as used in the specification refers to two or more unless otherwise specified. “And / or” is merely used to describe the relationship between related objects, and there can be three such relationships. For example, A and / or B means that A exists alone, A and B exist together, and B exists alone. Also, the letter “ / ” as used herein generally means that the preceding and succeeding related objects are in an “or” relationship.

[0011] The present application will be described in detail below with reference to specific embodiments.

[0012] Furthermore, all information relating to the embodiments of this specification (including, but not limited to, user device information and user personal information), data (including, but not limited to, data used for analysis, stored data, and displayed data) and signals are obtained with the user's permission or fully authorized by all parties involved, and the collection, use, and processing of relevant data must comply with the applicable laws, regulations, and standards of the relevant countries and regions. For example, all interactive operations relating to this specification are obtained with full permission.

[0013] In recent years, power supply devices such as chargers and mobile batteries that use Type-C as an output port connector have become extremely popular. The Type-C port is a new type of USB port, announced by the USB Implementers Forum (USB-IF) as a replacement for the conventional USB Micro-B and USB-A interfaces. The Type-C port connector is favored by many manufacturers and consumers because it has a small geometric size, high transmission speed, and high charging efficiency.

[0014] In the market applications of power supply devices such as mobile batteries and chargers, the failure rate of connector ports is high. This can cause internal short circuits in the power supply device, leading to continuous heating and melting of the power supply device's connector, and further melting of the plastic shell of the power supply device's port, even posing a serious fire risk.

[0015] This application provides a power supply device for solving the aforementioned problems. In one embodiment, as shown in Figure 1, Figure 1 is a schematic diagram of the structure of a power supply device as a power receiving device provided in one embodiment of this application, and the power supply device 101 comprises a processing module 1011, a first connection module 1012, a temperature detection module 1013, and a first port protection module 1014.

[0016] The temperature detection module 1013 is installed within a preset range of the voltage terminals of the first connection module 1012, which are used to receive the operating voltage input from the power supply device 102 to the power supply unit 101. This preset range can be understood as a circular or other shape centered on the voltage terminals of the first connection module 1012 with a predetermined radius, which can be set by the user. In other words, the temperature detection module 1013 is installed near the voltage terminals of the first connection module 1012, i.e., in close proximity to the first connection module 1012.

[0017] As can be understood, the power supply device 102 is a device and equipment that sends the power it stores or the power supplied from the transmission line to the power supply device 101, and mainly plays a role of converting high-voltage electricity into low-voltage electricity to provide an operating voltage to the power supply device 101. The power supply device 102 may be a transformer, a charger, or a mobile battery.

[0018] As can be understood, the first connection module 1012 is a connection device or connector of the power supply device 101. The first connection module 1012 includes voltage terminals and communication terminals.

[0019] As can be understood, the temperature detection module 1013 is a device for detecting temperature. For example, the temperature detection module 1013 is a temperature sensor or the like. The temperature detection module 1013 is set within a preset range of the first connection module 1012, can more appropriately detect the temperature of the first connection module 1012, improve the temperature detection accuracy, and improve the sensitivity of the power supply device when determining the overheating state of the device.

[0020] The detection terminal of the processing module 1011 is connected to the output terminal of the temperature detection module 1013. The temperature detection module 1013 detects the temperature of the voltage terminal of the first connection module 1012 and sends the temperature to the processing module 1011. The processing module 1011 receives the temperature of the voltage terminal of the first connection module 1014 detected by the temperature detection module 1013. When the power supply device 101 receives the operating voltage transmitted from the power supply device 102 via the voltage terminal of the first connection module 1014, the temperature of the voltage terminal of the first connection module 1014 may increase.

[0021] Optionally, the processing module 1011 can be implemented in at least one hardware form of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), and Programmable Logic Array (PLA). The processing module may be one of, or a combination of, an integrated Central Processing Unit (CPU), Graphics Processing Unit (GPU), and modem. Among them, the CPU mainly processes the operating system, user interface, and application programs, the GPU is used to be responsible for rendering and drawing the content displayed on the display screen, and the modem is used to process wireless communication. It may be understood that the modem is not integrated into the integrated processing unit or microcontroller and may be implemented independently via a chip.

[0022] Here, the memory may comprise random access memory (RAM) or read-only memory (ROM). Optionally, the memory may comprise a non-transitory computer-readable storage medium. The memory can be used to store instructions, programs, code, code sets, or instruction sets. The memory may comprise a program storage area and a data storage area. Here, the program storage area is used to store instructions for implementing an operating system, instructions for implementing at least one function (such as a touch function, audio playback function, or image playback function), instructions for implementing various embodiments of the following methods, etc. The data storage area is used to store data related to various embodiments of the following methods, etc. Optionally, the memory may also be at least one storage device located away from the processing module 1011.

[0023] The voltage terminal of the processing module 1011 is connected to the first terminal of the first port protection module 1014, and the second terminal of the first port protection module 1014 is connected to the voltage terminal of the first connection module 1012. When the processing module 1011 determines that the temperature has exceeded a preset temperature, it controls the first port protection module 1014 to switch to the off state, thereby stopping the reception of the operating voltage via the voltage terminal of the first connection module 1012. For example, if the preset temperature is 130°C, and the processing module 1011 determines that the temperature has exceeded the preset temperature, it controls the first port protection module 1014 to switch to the off state, thereby protecting the first connection module 1012.

[0024] In one embodiment, the first port protection module 1014 includes a MOS tube. The voltage terminal of the processing module 1011 is connected to the first terminal of the MOS tube, and the second terminal of the MOS tube is connected to the voltage terminal of the first connection module 1014. When the processing module 1011 determines that the temperature has exceeded a preset temperature, it controls the MOS tube to switch to an off state, thereby stopping the reception of the operating voltage via the voltage terminal of the first connection module 1012.

[0025] In this embodiment, the voltage terminal of the first connection module receives the operating voltage by switching the MOS tube included in the first port protection module to an ON state or an OFF state. When the MOS tube is ON, the voltage terminal of the first connection module receives the operating voltage, and when the MOS tube is OFF, the voltage terminal of the first connection module stops receiving the operating voltage, thereby preventing the temperature of the first connection module from continuing to rise. The structure of the first port protection module provided in this embodiment is simple and effective.

[0026] The communication terminal of the processing module 1011 is connected to the communication terminal of the first connection module 1012, and the communication terminal of the first connection module 1012 is used for communication with the power supply device 102. When the processing module 1011 determines that the temperature has exceeded a preset temperature, it transmits power supply stop information to the power supply device 102 via the communication terminal of the first connection module 1012, and the power supply device 102 stops outputting the operating voltage to the power supply unit 101 based on the power supply stop information.

[0027] For example, the power supply unit 101 and the power supply device 102 communicate via the Type-C communication protocol. When the processing module 1011 determines that the temperature has exceeded a preset temperature, it triggers the condition for the power supply device 102 to receive the power supply stop information by either sending power supply stop information to the power supply device 102 via the communication terminal of the first connection module 1012, or by actively disconnecting the Type-C communication connection with the power supply device 102, based on the Type-C communication protocol. When the power supply device 102 receives the power supply stop information, it stops outputting the operating voltage to the power supply unit 101.

[0028] As shown in Figure 2, Figure 2 is a schematic diagram of the structure of a power supply device as a power supply device provided in one embodiment of the present application. In Figure 1, the power supply device 101 receives the operating voltage supplied from the power supply device 102 as a power receiving device. In this embodiment, the power supply device 102 is a power supply device, and the structure of the power supply device 102 is the same as the structure of the power supply device 101. For example, both the power supply device 101 and the power supply device 102 are mobile batteries. In other words, in this embodiment (including the following embodiments), the power supply device 101 can be used not only as a power receiving device but also as a power supply device, and this application is not limited thereto.

[0029] Specifically, the power supply device 102 provides an operating voltage to the power supply device 101 via the voltage terminals of the first connection module 1024, and communicates with the power supply device 101 via the communication terminals of the first connection module 1024.

[0030] When the processing module 1021 determines that the temperature has exceeded a preset temperature, it controls the first port protection module 1024 to switch to the off state, thereby stopping the output of the operating voltage from the voltage terminal of the first connection module 1022. For example, if the preset temperature is 130°C, and the processing module 1021 determines that the temperature has exceeded the preset temperature, it controls the first port protection module 1024 to switch to the off state. When the processing module 1021 determines that the temperature has exceeded the preset temperature, it transmits power supply stop information to the power supply unit 101 via the communication terminal of the first connection module 1022, and the power supply unit 10 then stops receiving the operating voltage based on the power supply stop information.

[0031] According to the power supply device provided in this application, a temperature detection module detects the temperature of the voltage terminal of a first connection module and transmits the temperature value to a processing module. The processing module determines whether the temperature of the voltage terminal of the first connection module exceeds a preset temperature. If the temperature exceeds the preset temperature, it stops receiving the operating voltage via the voltage terminal of the first connection module and transmits power supply stop information to the power supply device via the communication terminal. As a result, the power supply device stops outputting the operating voltage to the power supply device based on the power supply stop information. In other words, the power supply device provided in this application not only stops receiving the operating voltage of the power supply device when the connector of the power supply device overheats, but also instructs the power supply device to stop outputting the operating voltage to the power supply device via a communication connection with the power supply device. Compared to conventional unidirectional protection that only stops receiving the operating voltage, this application can better protect the power supply device during the power supply process and avoid problems such as circuit failure and melting of the connector shell due to overheating of the power supply device.

[0032] As shown in Figure 3, Figure 3 is a schematic diagram of the structure of a power supply device provided by one embodiment of the present application, which comprises a processing module 201, a first connection module 202, a temperature detection module 203, and a first port protection module 204. Here, the connection modes and functions of the processing module 201, the first connection module 202, the temperature detection module 203, and the first port protection module 204 are described in Figure 1 and will not be repeated here.

[0033] In this embodiment, the temperature detection module 203 includes a voltage division protection unit 2031 and a first temperature detection unit 2032.

[0034] The first terminal of the voltage division protection unit 2031 receives a reference voltage, the second terminal of the voltage division protection unit 2031 is connected to the first terminal of the first temperature detection unit 2032, and the second terminal of the first temperature detection unit 2032 is connected to the detection terminal of the processing module 201.

[0035] The resistance of the first temperature detection unit 2021 decreases as the temperature of the voltage terminal of the first connection module rises. The processing module 201 determines that the temperature exceeds a preset temperature if it determines that the voltage of the first temperature detection unit is lower than a preset voltage.

[0036] In this embodiment, the sum of the voltage of the voltage division protection unit 2031 and the voltage of the first temperature detection unit 2032 is used as the reference voltage. When the temperature of the voltage terminal of the first connection module 202 rises, the resistance value of the first temperature detection unit 2032 decreases as the temperature rises, and the voltage of the first temperature detection unit 2032 also decreases as the resistance value of the first temperature detection unit 2032 decreases. Based on the correlation between temperature and voltage, if the processing module 201 determines that the voltage of the first temperature detection unit is lower than a preset voltage, it determines that the temperature of the first connection module 202 has exceeded a preset temperature, and further takes overheating protection measures such as stopping the reception of the operating voltage and instructing the power supply device to output the operating voltage. The temperature detection module provided in this embodiment has a simple structure, high detection accuracy, and is easy to implement.

[0037] According to the power supply device provided in this application, a temperature detection module detects the temperature of the voltage terminal of the first connection module and transmits the temperature value to a processing module. The processing module determines whether the temperature of the voltage terminal of the first connection module exceeds a preset temperature. If the temperature exceeds the preset temperature, it stops receiving the operating voltage via the voltage terminal of the first connection module and transmits power supply stop information to the power supply device via the communication terminal. Based on this power supply stop information, the power supply device stops outputting the operating voltage to the power supply device. In other words, the power supply device provided in this application not only stops receiving the operating voltage of the power supply device when the connector of the power supply device overheats, but also instructs the power supply device to stop outputting the operating voltage to the power supply device via a communication connection with the power supply device. Compared to conventional one-way protection that only stops receiving the operating voltage, this application can better protect the power supply device during the power supply process and avoid problems such as circuit failure and melting of the connector shell due to overheating of the power supply device.

[0038] As shown in Figure 4, Figure 4 is a schematic diagram of the structure of a power supply device provided by one embodiment of the present application, which comprises a processing module 301, a first connection module 302, a temperature detection module 303, and a first port protection module 304. Here, the connection modes and functions of the processing module 301, the first connection module 302, the temperature detection module 303, and the first port protection module 304 are described in Figure 2 and will not be repeated here.

[0039] In this embodiment, the temperature detection module 303 includes a voltage division protection unit 3031, a first temperature detection unit 3032, and a filter module 3033.

[0040] The first terminal of the filter unit 3033 is connected to the first terminal of the first temperature detection unit 3032, and the second terminal of the filter unit 3033 is connected to the detection terminal of the processing module 301.

[0041] The filter unit 3033 is used to filter the voltage of the first temperature detection unit 3032 and outputs the filtered voltage to the processing module 301. Based on the filtered voltage, the processing module 301 determines whether the temperature of the voltage terminal of the first connection module 302 exceeds a preset temperature. Specifically, if the filtered voltage exceeds a preset voltage, it is determined that the temperature of the first connection module 302 exceeds a preset temperature.

[0042] The filter unit 3033 is used to filter the voltage of the first temperature detection unit 3032, improving the accuracy with which the processing module 301 determines whether the temperature exceeds a preset temperature based on whether the voltage is lower than a preset voltage.

[0043] Based on the schematic diagram of the power supply device shown in Figure 4, Figure 5 is a schematic diagram of the power supply device provided by one embodiment of this application.

[0044] The first temperature detection unit 3032 includes a first thermistor NTC1, the first terminal of the first thermistor NTC1 is connected to the second terminal of the voltage division protection unit 3031, and the second terminal of the first thermistor NTC1 is connected to the detection terminal of the processing module 301.

[0045] The voltage division protection unit 3031 includes a first resistor R1. The first terminal of the first resistor R1 receives a reference voltage VO, and the second terminal of the first resistor R1 is connected to the first terminal of the first temperature detection unit 3032.

[0046] The filter unit includes a second resistor R2 and a capacitor C1. The first terminal of the second resistor R2 is connected to the first terminal of the first temperature detection unit 3032, the second terminal of the second resistor R2 is connected to the first terminal of the capacitor C1 and the detection terminal of the processing module 301, respectively, and the second terminal of the capacitor C1 is grounded.

[0047] In this embodiment, the rated resistance value of the thermistor NTC1 and the resistance value of the first resistor R1 are determined by setting a predetermined correlation between a predetermined temperature and a predetermined voltage. For example, if the resistance value of the first resistor R1 is 200 kohm, the predetermined temperature is 130 degrees, the normal operating temperature of the first connection module 302 under full load is 70 degrees, and the resistance value of NTC1 is approximately 17.29 kohm, then when the predetermined temperature reaches 130 degrees in an overheated state, the resistance value of NTC1 is approximately 2.8 kohm.

[0048] According to the power supply device provided in this application, a temperature detection module detects the temperature of the voltage terminal of a first connection module and transmits the temperature value to a processing module. The processing module determines whether the temperature of the voltage terminal of the first connection module exceeds a preset temperature. If the temperature exceeds the preset temperature, it stops receiving the operating voltage via the voltage terminal of the first connection module and transmits power supply stop information to the power supply device via the communication terminal. Based on this power supply stop information, the power supply device stops outputting the operating voltage to the power supply device. In other words, the power supply device provided in this application not only stops receiving the operating voltage of the power supply device when the connector of the power supply device overheats, but also instructs the power supply device to stop outputting the operating voltage to the power supply device via a communication connection with the power supply device. Compared to conventional one-way protection that only stops receiving the operating voltage, this application can better protect the power supply device during the power supply process and avoid problems such as circuit failure and melting of the connector shell due to overheating of the power supply device.

[0049] As shown in Figure 6, Figure 6 is a schematic diagram of the structure of a power supply unit provided by one embodiment of the present application, which comprises a processing module 401, a first connection module 402, a temperature detection module 403, and a first port protection module 404. Here, the connection modes and functions of the processing module 401, the first connection module 402, the temperature detection module 403, and the first port protection module 404 are described in Figure 2 and will not be repeated here.

[0050] The power supply unit further comprises a second connection module 404, and the temperature detection module 403 comprises a voltage division protection unit 4031, a first temperature detection unit 4032, a filter module 4033, and further comprises a second temperature detection unit 4032.

[0051] The second temperature detection unit 4034 of the temperature detection module 403 is installed within a preset range of the voltage terminals of the second connection module 404, and the second temperature detection unit 4032 detects the temperature of the voltage terminals of the second connection module 404 and transmits the temperature of the voltage terminals of the second connection module 404 to the processing module 401. In other words, the processing module 401 receives the temperature of the voltage terminals of the second connection module 404 via the second temperature detection unit 4032.

[0052] The voltage terminal of the second connection module 404 is connected to the first terminal of the first port protection module 402. When the processing module 401 determines that the temperature of the voltage terminal of the second connection module 404 exceeds a preset temperature, it controls the first port protection module 402 to switch to the off state, thereby stopping the reception of the operating voltage via the voltage terminal of the second connection module 404.

[0053] The communication terminal of the processing module 401 is connected to the communication terminal of the second connection module 404, and the communication terminal of the second connection module 404 is used to communicate with a power supply device that outputs an operating voltage to the voltage terminal of the second connection module 404 (this power supply device is different from the power supply device that outputs an operating voltage to the voltage terminal of the first connection module 402).

[0054] When the processing module 401 determines the temperature of the voltage terminals of the second connection module 404, it transmits power supply stop information to the power supply device that outputs operating voltage to the voltage terminals of the second connection module 404 via the communication terminals of the second connection module 404 (or actively disconnects the communication connection with the power supply device, triggering the condition for the power supply device to receive the power supply stop information). As a result, the power supply device that outputs operating voltage to the voltage terminals of the second connection module 404 stops outputting operating voltage to the power supply device based on the power supply stop information.

[0055] In this embodiment, the power supply unit comprises multiple connection modules, i.e., multiple connectors. Each connection module is provided with voltage terminals and communication terminals, and is connected to different power supply or power receiving devices. In other words, the power supply unit can be connected to multiple power supply units simultaneously. In this embodiment, the temperature detection module comprises multiple temperature detection units, each temperature detection unit is located near the voltage terminal of each connection module, and is connected to the processing module via the detection terminal of the same processing module, thus saving the I / O interface of the processing module. When the processing module determines that the voltage of a certain temperature detection unit is below a preset voltage, it determines that the voltage terminal of a certain connection module is overheating. By controlling the first port protection module, the reception of the operating voltages of multiple connection modules is stopped, and power supply stop signals are sent to multiple power supply or power receiving devices, thereby more effectively protecting the power supply unit.

[0056] According to the power supply device provided in this application, a temperature detection module detects the temperature of the voltage terminal of a first connection module and transmits the temperature value to a processing module. The processing module determines whether the temperature of the voltage terminal of the first connection module exceeds a preset temperature. If the temperature exceeds the preset temperature, it stops receiving the operating voltage via the voltage terminal of the first connection module and transmits power supply stop information to the power supply device via the communication terminal. As a result, the power supply device stops outputting the operating voltage to the power supply device based on the power supply stop information. In other words, the power supply device provided in this application not only stops receiving the operating voltage of the power supply device when the connector of the power supply device overheats, but also instructs the power supply device to stop outputting the operating voltage to the power supply device via a communication connection with the power supply device. Compared to conventional one-way protection that only stops receiving the operating voltage, this application can better protect the power supply device during the power supply process and can avoid problems such as circuit failure and melting of the connector shell due to overheating of the power supply device.

[0057] As shown in Figure 7, Figure 7 is a schematic diagram of the structure of a power supply device according to one embodiment of the present application, the power supply device comprising a processing module 401, a first connection module 402, a temperature detection module 403, and a first port protection module 404.

[0058] The power supply unit further includes a second port protection module 505. The voltage terminal of the processing module 501 is connected to the first terminal of the second port protection module 505, and the second terminal of the second port protection module 505 is connected to the voltage terminal of the second connection module 504. When the processing module 501 determines that the temperature of the voltage terminal of the second connection module 504 exceeds a predetermined temperature, it controls the second port protection module 505 to an off state and stops receiving the operating voltage via the voltage terminal of the second connection module 504.

[0059] In other words, in this embodiment, multiple connection modules are each protected by multiple second port protection modules. If the temperature of a connection module rises to a preset temperature, the connection module whose temperature has risen can be protected more accurately.

[0060] Based on the schematic diagram of the power supply device shown in Figure 7, Figure 8 is a schematic diagram of the power supply device provided by one embodiment of this application.

[0061] The second temperature detection unit 5022 includes a second thermistor NTC2. The first terminal of the second thermistor NTC2 is connected to the second terminal of the first resistor R1 in the voltage division protection unit, and the second terminal of the second thermistor NTC2 is connected to the detection terminal of the processing module 501.

[0062] According to the power supply device provided in this application, a temperature detection module detects the temperature of the voltage terminal of a first connection module and transmits the temperature value to a processing module. The processing module determines whether the temperature of the voltage terminal of the first connection module exceeds a preset temperature. If the temperature exceeds the preset temperature, it stops receiving the operating voltage via the voltage terminal of the first connection module and transmits power supply stop information to the power supply device via the communication terminal. As a result, the power supply device stops outputting the operating voltage to the power supply device based on the power supply stop information. In other words, the power supply device provided in this application not only stops receiving the operating voltage of the power supply device when the connector of the power supply device overheats, but also instructs the power supply device to stop outputting the operating voltage to the power supply device via a communication connection with the power supply device. Compared to conventional one-way protection that only stops receiving the operating voltage, this application can better protect the power supply device during the power supply process and can avoid problems such as circuit failure and melting of the connector shell due to overheating of the power supply device.

[0063] To make it clear, those skilled in the art will see that all or part of the steps in the embodiments described above can be implemented by instructing the relevant hardware via a computer program, which can be stored on a computer-readable storage medium, and which may include the steps of the embodiments of the method described above when executed. Here, the storage medium may be a disk, an optical disk, a read-only storage memory, a random-access memory, and the like.

[0064] The technical features of the embodiments described above can be combined in any way. For the sake of brevity, not all possible combinations of the technical features of the embodiments described above have been listed, but as long as these combinations of technical features are inconsistent, they should be considered to be included within the scope of this specification.

[0065] The foregoing disclosures are merely preferred embodiments of the present application and do not limit the scope of the rights of the present application. Accordingly, equivalent modifications made in accordance with the claims of the present application remain within the scope of protection of the present application.

Claims

1. A power supply device comprising a processing module, a first connection module, a temperature detection module, and a first port protection module, The temperature detection module is positioned within a preset range of the voltage terminals of the first connection module, and the voltage terminals of the first connection module are used to receive the operating voltage input from the power supply device to the power supply device. The processing module includes a detection terminal, a voltage terminal, and a communication terminal, the detection terminal of the processing module is connected to the output terminal of the temperature detection module, the temperature detection module detects the temperature of the voltage terminal of the first connection module and transmits the temperature value to the processing module. The voltage terminal of the processing module is connected to the first terminal of the first port protection module, the second terminal of the first port protection module is connected to the voltage terminal of the first connection module, and the processing module controls the first port protection module to switch to an off state when it determines that the temperature exceeds a preset temperature, thereby stopping the reception of the operating voltage via the voltage terminal of the first connection module, and the communication terminal of the processing module is connected to the communication terminal of the first connection module, the communication terminal of the first connection module is used for communication with the power supply device, and the processing module transmits power supply stop information to the power supply device via the communication terminal of the first connection module when it determines that the temperature exceeds the preset temperature, thereby the power supply device stops outputting the operating voltage to the power supply device based on the power supply stop information.

2. The temperature detection module includes a voltage division protection unit and a first temperature detection unit. The first terminal of the voltage division protection unit receives a reference voltage, the second terminal of the voltage division protection unit is connected to the first terminal of the first temperature detection unit, and the second terminal of the first temperature detection unit is connected to the detection terminal of the processing module. The power supply device according to claim 1, characterized in that the processing module controls the first port protection module to switch to the off state when it determines that the voltage of the first temperature detection unit is lower than a preset voltage.

3. The first temperature detection unit includes a first thermistor, The power supply device according to claim 2, characterized in that the first terminal of the first thermistor is connected to the second terminal of the voltage division protection unit, and the second terminal of the first thermistor is connected to the detection terminal of the processing module.

4. The power supply device according to claim 2, wherein the voltage division protection unit includes a first resistor, the first terminal of the first resistor receives the reference voltage, and the second terminal of the first resistor is connected to the first terminal of the first temperature detection unit.

5. The temperature detection module further includes a filter unit, The first terminal of the filter unit is connected to the first terminal of the first temperature detection unit, and the second terminal of the filter unit is connected to the detection terminal of the processing module. The filter unit is used to filter the voltage of the first temperature detection unit and output the filtered voltage to the processing module. The power supply device according to claim 2, characterized in that the processing module controls the first port protection module to switch to the off state when it determines that the filtered voltage is lower than the preset voltage.

6. The aforementioned filter unit includes a second resistor and a capacitor, The power supply device according to claim 4, characterized in that the first terminal of the second resistor is connected to the first terminal of the first temperature detection unit, the second terminal of the second resistor is connected to the first terminal of the capacitor and the detection terminal of the processing module, respectively, and the second terminal of the capacitor is grounded.

7. The power supply unit further includes a second connection module, and the temperature detection module further includes a second temperature detection unit. The second temperature detection unit of the temperature detection module is positioned within a preset range of the voltage terminals of the second connection module, and the second temperature detection unit detects the temperature of the voltage terminals of the second connection module and transmits the temperature of the voltage terminals of the second connection module to the processing module. The voltage terminal of the second connection module is connected to the first terminal of the first port protection module, and when the processing module determines that the temperature of the voltage terminal of the second connection module exceeds the preset temperature, it controls the first port protection module to switch to the off state, thereby stopping the reception of the operating voltage via the voltage terminal of the second connection module. The power supply device according to claim 2, wherein the communication terminal of the processing module is connected to the communication terminal of the second connection module, the communication terminal of the second connection module is used to communicate with a power supply device that outputs an operating voltage to the voltage terminal of the second connection module, and when the processing module determines that the temperature of the voltage terminal of the second connection module exceeds the preset temperature, it transmits power supply stop information to the power supply device that outputs an operating voltage to the voltage terminal of the second connection module via the communication terminal of the second connection module, and the power supply device that outputs an operating voltage to the voltage terminal of the second connection module stops outputting the operating voltage to the power supply device based on the power supply stop information.

8. The second temperature detection unit includes a second thermistor, The power supply device according to claim 7, characterized in that the first terminal of the second thermistor is connected to the second terminal of the voltage division protection unit, and the second terminal of the second thermistor is connected to the detection terminal of the processing module.

9. The power supply further includes a second port protection module. The power supply device according to claim 2, characterized in that the voltage terminal of the processing module is connected to the first terminal of the second port protection module, the second terminal of the second port protection module is connected to the voltage terminal of the second connection module, and the processing module controls the second port protection module to switch to an off state when it determines that the temperature of the voltage terminal of the second connection module exceeds the preset temperature, thereby stopping the reception of the operating voltage via the voltage terminal of the second connection module.

10. The first port protection module includes a MOS tube, The power supply device according to claim 1, characterized in that the voltage terminal of the processing module is connected to the first terminal of the MOS tube, the second terminal of the MOS tube is connected to the voltage terminal of the first connection module, and the processing module controls itself to switch the MOS tube to an off state when it determines that the temperature exceeds a preset temperature, thereby stopping the reception of the operating voltage via the voltage terminal of the first connection module.

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