Power supply equipment

Abstract

The embodiment of the utility model discloses power supply equipment, and relates to the field of protection circuits. According to the power supply equipment provided by the utility model, the temperature detection module detects the temperature of the voltage end of the first connection module and sends the numerical value of the temperature to the processing module, and the processing module determines whether the temperature of the voltage end of the first connection module exceeds the preset temperature; and when the temperature exceeds the preset temperature, stopping receiving the working voltage through the voltage end of the first connection module, and sending power supply stopping information to the power supply equipment through the communication end, so that the power supply equipment stops outputting the working voltage to the power supply equipment based on the power supply stopping information. In other words, when over-temperature occurs in the connector of the power supply equipment, the power supply equipment provided by the invention not only stops receiving the working voltage of the power supply equipment, but also instructs the power supply equipment to stop outputting the working voltage to the power supply equipment through communication connection with the credit granting equipment.

Description

Technical Field

[0001] The present application relates to the field of protection circuits, and in particular to a power supply device. Background Art

[0002] In recent years, power devices such as chargers and power banks that use Type-C as output port connectors have become very popular. The Type-C port is a new type of USB port, launched by the USB Implementers Forum (USB-IF) to replace the traditional USB Micro-B and USB-A interfaces. The Type-C port connector has a smaller geometric size, faster transmission speed and higher charging efficiency, and is favored by many manufacturers and consumers.

[0003] When these power devices such as power banks or chargers are used in the market, the connector ports have a high failure rate, which further causes internal short circuits in the power devices, resulting in continuous heating and melting of the connectors of the power devices, and further causing the plastic shell of the power devices at the ports to melt, and even posing a serious risk of fire. Summary of the invention

[0004] The embodiment of the present application provides a power supply device that can solve the above problems. The technical solution is as follows:

[0005] In a first aspect, an embodiment of the present application provides a power supply device, the power supply device comprising: a processing module, a first connection module, a temperature detection module and a first port protection module;

[0006] The temperature detection module is arranged within a preset range of the voltage terminal of the first connection module, and the voltage terminal of the first connection module is used to receive the working voltage input from the power supply device to the power supply device;

[0007] The processing module includes a detection end, a voltage end and a communication end, the detection end of the processing module is connected to the output end of the temperature detection module, the temperature detection module detects the temperature of the voltage end of the first connection module, and sends the temperature to the processing module;

[0008] The voltage end of the processing module is connected to the first end of the first port protection module, and the second end of the first port protection module is connected to the voltage end of the first connection module. When the processing module determines that the temperature exceeds the preset temperature, the processing module controls the first port protection module to switch to an off state to stop receiving the working voltage through the voltage end of the first connection module;

[0009] The communication end of the processing module is connected to the communication end of the first connection module, and the communication end of the first connection module is used to communicate with the power supply device. When the processing module determines that the temperature exceeds the preset temperature, the processing module sends power supply stop information to the power supply device through the communication end of the first connection module, so that the power supply device stops outputting the working voltage to the power supply device based on the power supply stop information.

[0010] The beneficial effects brought about by the technical solutions provided by some embodiments of the present application include at least:

[0011] According to the power supply device provided by the present application, the temperature detection module detects the temperature of the voltage end of the first connection module and sends the temperature value to the processing module, the processing module determines whether the temperature of the voltage end of the first connection module exceeds the preset temperature, and stops receiving the working voltage through the voltage end of the first connection module when the temperature exceeds the preset temperature, and sends power supply stop information to the power supply device through the communication end, so that the power supply device stops outputting the working voltage to the power supply device based on the power supply stop information. In other words, when the power supply device provided by the present application has an overtemperature in the connector of the power supply device, it not only stops receiving the working voltage of the power supply device, but also instructs the power supply device to stop outputting the working voltage to the power supply device through the communication connection with the credit device. Compared with the traditional one-way protection that only stops receiving the working voltage, the present application can better protect the power supply device during the power supply process, and avoid problems such as circuit failure or even melting of the connector shell due to overheating of the power supply device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 It is a structural schematic diagram of a power supply device as a powered device provided in an embodiment of the present application;

[0014] Figure 2 It is a structural schematic diagram of a power supply device as a power granting device provided in an embodiment of the present application;

[0015] Figure 3 It is a structural schematic diagram of a power supply device provided in an embodiment of the present application;

[0016] Figure 4 It is a structural schematic diagram of a power supply device provided in an embodiment of the present application;

[0017] Figure 5 It is a structural schematic diagram of a power supply device provided in an embodiment of the present application;

[0018] Figure 6 It is a structural schematic diagram of a power supply device provided in an embodiment of the present application;

[0019] Figure 7 It is a structural schematic diagram of a power supply device provided in an embodiment of the present application;

[0020] Figure 8 It is a structural schematic diagram of a power supply device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] In the description of the present application, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood in specific circumstances. In addition, in the description of the present application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B, which can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are an "or" relationship.

[0023] The present application is described in detail below with reference to specific embodiments.

[0024] It should be noted that the information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.) and signals involved in the embodiments of this specification are all authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of relevant countries and regions. For example, the interactive behaviors involved in this specification are all obtained with full authorization.

[0025] In recent years, power devices such as chargers and power banks that use Type-C as output port connectors have become very popular. The Type-C port is a new type of USB port, launched by the USB Implementers Forum (USB-IF) to replace the traditional USB Micro-B and USB-A interfaces. The Type-C port connector has a smaller geometric size, faster transmission speed and higher charging efficiency, and is favored by many manufacturers and consumers.

[0026] In the application of these power devices such as power banks or chargers in the market, the connector ports have a high failure rate, which further causes internal short circuits in the power devices, resulting in continuous heating and melting of the connectors of the power devices, and further causing the plastic shell of the power devices at the ports to melt, and even posing a serious risk of fire.

[0027] In view of the above problems, the present application proposes a power supply device to solve the problem. In one embodiment, Figure 1 As shown, Figure 1 It is a structural diagram of a power supply device as a powered device provided in an embodiment of the present application. The power supply device 101 includes: a processing module 1011, a first connection module 1012, a temperature detection module 1013 and a first port protection module 1014.

[0028] The temperature detection module 1013 is set within a preset range of the voltage end of the first connection module 1012, and the voltage end of the first connection module 1012 is used to receive the working voltage input from the power supply device 102 to the power supply device 101. The preset range can be understood as a circular or other shaped range with the voltage end of the first connection module 1012 as the center and a preset distance as the radius, and the preset distance can be set by the user. In other words, the temperature detection module 1013 is set near the voltage end of the first connection module 1012, close to the first connection module 1012.

[0029] The power supply device 102 can be understood as a device and facility that sends its own stored power or power provided by the transmission line to the power supply device 101, and is mainly responsible for converting high voltage electricity into low voltage electricity to provide working voltage for the power supply device 101. The power supply device 102 can be a transformer, charger, or power bank.

[0030] The first connection module 1012 can be understood as a connection device or a connector of the power supply device 101. The first connection module 1012 includes a voltage terminal and a communication terminal.

[0031] The temperature detection module 1013 can be understood as a device for detecting temperature. For example, the temperature detection module 1013 is a temperature sensor, etc. The temperature detection module 1013 is set within a preset range of the first connection module 1012, and can better detect the temperature of the first connection module 1012, improve the accuracy of temperature detection, and improve the sensitivity of the power supply device to determine that the machine is overheated.

[0032] The detection end of the processing module 1011 is connected to the output end of the temperature detection module 1013. The temperature detection module 1013 detects the temperature of the voltage end 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 end of the first connection module 1014 detected by the temperature detection module 1013. When the power supply device 101 receives the working voltage sent by the power supply device 102 through the voltage end of the first connection module 1014, the temperature of the voltage end of the first connection module 1014 will rise.

[0033] 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 above-mentioned processing module can be a combination of one or more of an integrated central processing unit (CPU), a graphics processing unit (GPU), and a modem. Among them, the CPU mainly processes the operating system, user interface, and application programs; the GPU is responsible for rendering and drawing the content to be displayed on the display screen; and the modem is used to process wireless communications. It can be understood that the above-mentioned modem may not be integrated into the integrated processing unit or the micro control unit, but may be implemented separately through a chip.

[0034] Among them, the memory may include a random access memory (RAM) and may also include a read-only memory (Read-Only Memory). Optionally, the memory includes a non-transitory computer-readable storage medium. The memory can be used to store instructions, programs, codes, code sets or instruction sets. The memory may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playback function, an image playback function, etc.), instructions for implementing the following various method embodiments, etc.; the data storage area may store data involved in the following various method embodiments, etc. The memory may also be optionally at least one storage device located away from the processing module 1011.

[0035] The voltage end of the processing module 1011 is connected to the first end of the first port protection module 1014, and the second end of the first port protection module 1014 is connected to the voltage end of the first connection module 1012. When the processing module 1011 determines that the temperature exceeds the preset temperature, it controls the first port protection module 1014 to switch to the off state to stop receiving the working voltage through the voltage end of the first connection module 1012. For example, the preset temperature is 130°C, and when the processing module 1011 determines that the temperature exceeds the preset temperature, it controls the first port protection module 1014 to switch to the off state to protect the first connection module 1012.

[0036] In one embodiment, the first port protection module 1014 includes: a MOS tube. The voltage end of the processing module 1011 is connected to the first end of the MOS tube, and the second end of the MOS tube is connected to the voltage end of the first connection module 1014. When the processing module 1011 determines that the temperature exceeds the preset temperature, the MOS tube is controlled to switch to the off state to stop receiving the working voltage through the voltage end of the first connection module 1012.

[0037] In this embodiment, the MOS tube included in the first port protection module is switched to an on state or an off state to control whether the voltage terminal of the first connection module receives the working voltage. When the MOS tube is in the on state, the voltage terminal of the first connection module receives the working voltage, and when the MOS tube is in the off state, the voltage terminal of the first connection module stops receiving the working 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.

[0038] The communication end of the processing module 1011 is connected to the communication end of the first connection module 1012, and the communication end of the first connection module 1012 is used to communicate with the power supply device 102. When the processing module 1011 determines that the temperature exceeds the preset temperature, the power supply stop information is sent to the power supply device 102 through the communication end of the first connection module 1012, so that the power supply device 102 stops outputting the working voltage to the power supply device 101 based on the power supply stop information.

[0039] For example, the power supply device 101 and the power supply device 102 communicate through the Type-C communication protocol. When the processing module 1011 determines that the temperature exceeds the preset temperature, it sends power supply stop information to the power supply device 102 through the communication end of the first connection module 1012 based on the Type-C communication protocol, or actively disconnects the Type-C communication connection with the power supply device 102 to trigger the power supply device 102 to receive the power supply stop information. When receiving the power supply stop information, the power supply device 102 stops outputting the working voltage to the power supply device 101.

[0040] like Figure 2 As shown, Figure 2 It is a structural schematic diagram of a power supply device as a power granting device provided in an embodiment of the present application. Figure 1 The power supply device 101 serves as a power receiving device, receiving the working voltage provided by the power supply device 102. In this embodiment, the power supply device 102 serves as a power supply device, and the structure of the power supply device 102 is the same as that of the power supply device 101. For example, the power supply device 101 and the power supply device 102 are both power banks. 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 does not limit this.

[0041] Specifically, the power supply device 102 provides the operating voltage to the power supply device 101 through the voltage terminal of the first connection module 1024 , and communicates with the power supply device 101 through the communication terminal of the first connection module 1024 .

[0042] When the processing module 1021 determines that the temperature exceeds the preset temperature, the first port protection module 1024 is controlled to switch to the off state to stop outputting the working voltage through the voltage terminal of the first connection module 1022. For example, the preset temperature is 130°C, and when the processing module 1021 determines that the temperature exceeds the preset temperature, the first port protection module 1024 is controlled to switch to the off state. When the processing module 1021 determines that the temperature exceeds the preset temperature, the power supply device 101 is sent a power supply stop information through the communication terminal of the first connection module 1022, so that the power supply device 101 stops receiving the working voltage based on the power supply stop information.

[0043] According to the power supply device provided by the present application, the temperature detection module detects the temperature of the voltage end of the first connection module and sends the temperature value to the processing module, the processing module determines whether the temperature of the voltage end of the first connection module exceeds the preset temperature, and stops receiving the working voltage through the voltage end of the first connection module when the temperature exceeds the preset temperature, and sends the power supply stop information to the power supply device through the communication end, so that the power supply device stops outputting the working voltage to the power supply device based on the power supply stop information. In other words, when the power supply device provided by the present application has an overtemperature in the connector of the power supply device, it not only stops receiving the working voltage of the power supply device, but also instructs the power supply device to stop outputting the working voltage to the power supply device through the communication connection with the credit device. Compared with the traditional one-way protection that only stops receiving the working voltage, the present application can better protect the power supply device during the power supply process, and avoid problems such as circuit failure or even melting of the connector shell due to overheating of the power supply device.

[0044] like Figure 3 As shown, Figure 3 201 is a schematic diagram of a power supply device provided in an embodiment of the present application, and the power supply device includes: a processing module 201, a first connection module 202, a temperature detection module 203 and a first port protection module 204. The connection mode and function of the processing module 201, the first connection module 202, the temperature detection module 203 and the first port protection module 204 are shown in FIG. Figure 1 As shown, no further description is given here.

[0045] In this embodiment, the temperature detection module 203 includes: a voltage division protection unit 2031 and a first temperature detection unit 2032 .

[0046] A first end of the voltage division protection unit 2031 receives a reference voltage, a second end of the voltage division protection unit 2031 is connected to a first end of the first temperature detection unit 2032 , and a second end of the first temperature detection unit 2032 is connected to a detection end of the processing module 201 .

[0047] The resistance value of the first temperature detection unit 2021 decreases as the temperature of the voltage end of the first connection module increases. When the processing module 201 determines that the voltage of the first temperature detection unit is lower than the preset voltage, it determines that the temperature exceeds the preset temperature.

[0048] In this embodiment, the sum of the voltage of the voltage-dividing protection unit 2031 and the voltage of the first temperature detection unit 2032 is the reference voltage. When the temperature of the voltage terminal of the first connection module 202 increases, the resistance value of the first temperature detection unit 2032 decreases as the temperature increases, and the voltage of the first temperature detection unit 2032 decreases as the resistance value of the first temperature detection unit 2032 decreases. According to the correlation between the above temperature and voltage values, when the processing module 201 determines that the voltage of the first temperature detection unit is lower than the preset voltage, it determines that the temperature of the first connection module 202 exceeds the preset temperature, and further takes over-temperature protection measures such as stopping receiving the working voltage and instructing the power supply device to output the working voltage. The temperature detection module provided in this embodiment has a simple structure and high detection accuracy, and is easy to promote.

[0049] According to the power supply device provided by the present application, the temperature detection module detects the temperature of the voltage end of the first connection module and sends the temperature value to the processing module, the processing module determines whether the temperature of the voltage end of the first connection module exceeds the preset temperature, and stops receiving the working voltage through the voltage end of the first connection module when the temperature exceeds the preset temperature, and sends the power supply stop information to the power supply device through the communication end, so that the power supply device stops outputting the working voltage to the power supply device based on the power supply stop information. In other words, when the power supply device provided by the present application has an overtemperature in the connector of the power supply device, it not only stops receiving the working voltage of the power supply device, but also instructs the power supply device to stop outputting the working voltage to the power supply device through the communication connection with the credit device. Compared with the traditional one-way protection that only stops receiving the working voltage, the present application can better protect the power supply device during the power supply process, and avoid problems such as circuit failure or even melting of the connector shell due to overheating of the power supply device.

[0050] like Figure 4 As shown, Figure 4 301 is a schematic diagram of a power supply device provided in an embodiment of the present application, and the power supply device includes: a processing module 301, a first connection module 302, a temperature detection module 303 and a first port protection module 304. The connection mode and function of the processing module 301, the first connection module 302, the temperature detection module 303 and the first port protection module 304 are shown in FIG. Figure 2 As shown, no further description is given here.

[0051] In this embodiment, the temperature detection module 303 includes: a voltage division protection unit 3031 , a first temperature detection unit 3032 and a filtering module 3033 .

[0052] A first end of the filter unit 3033 is connected to a first end of the first temperature detection unit 3032 , and a second end of the filter unit 3033 is connected to a detection end of the processing module 301 .

[0053] The filtering unit 3033 is used to filter the voltage of the first temperature detection unit 3032, and output the filtered voltage to the processing module 301, so that the processing module 301 determines whether the temperature of the voltage end of the first connection module 302 exceeds the preset temperature based on the filtered voltage. Specifically, when the filtered voltage exceeds the preset voltage, it is determined that the temperature of the first connection module 302 exceeds the preset temperature.

[0054] The filtering unit 3033 is used to filter the voltage of the first temperature detection unit 3032 to improve the accuracy of the processing module 301 in determining whether the temperature exceeds the preset temperature based on whether the voltage is lower than the preset voltage.

[0055] based on Figure 4 The structural diagram of the power supply device shown in FIG. Figure 5 As shown, Figure 5 It is a structural schematic diagram of a power supply device provided in an embodiment of the present application.

[0056] The first temperature detection unit 3032 includes: a first thermistor NTC1 . A first end of the first thermistor NTC1 is connected to a second end of the voltage division protection unit 3031 , and a second end of the first thermistor NTC1 is connected to a detection end of the processing module 301 .

[0057] The voltage division protection unit 3031 includes: a first resistor R1 . A first end of the first resistor R1 receives a reference voltage V0 , and a second end of the first resistor R1 is connected to a first end of the first temperature detection unit 3032 .

[0058] The filtering unit includes: a second resistor R2 and a capacitor C1. The first end of the second resistor R2 is connected to the first end of the first temperature detection unit 3032, the second end of the second resistor R2 is connected to the first end of the capacitor C1 and the detection end of the processing module 301, and the second end of the capacitor C1 is grounded.

[0059] In this embodiment, the rated resistance value of thermistor NTC1 and the resistance value of the first resistor R1 are determined by setting the correlation between the preset temperature and the preset voltage. For example, the resistance value of the first resistor R1 is 200Kohm, the preset temperature is 130 degrees, the normal operating temperature of the first connection module 302 when fully loaded is 70°C, and the resistance of NTC1 is about 17.29Kohm. If the preset temperature reaches 130 degrees in the over-temperature situation, the resistance of NTC1 is about 2.8Kohm.

[0060] According to the power supply device provided by the present application, the temperature detection module detects the temperature of the voltage end of the first connection module and sends the temperature value to the processing module, the processing module determines whether the temperature of the voltage end of the first connection module exceeds the preset temperature, and stops receiving the working voltage through the voltage end of the first connection module when the temperature exceeds the preset temperature, and sends the power supply stop information to the power supply device through the communication end, so that the power supply device stops outputting the working voltage to the power supply device based on the power supply stop information. In other words, when the power supply device provided by the present application has an overtemperature in the connector of the power supply device, it not only stops receiving the working voltage of the power supply device, but also instructs the power supply device to stop outputting the working voltage to the power supply device through the communication connection with the credit device. Compared with the traditional one-way protection that only stops receiving the working voltage, the present application can better protect the power supply device during the power supply process, and avoid problems such as circuit failure or even melting of the connector shell due to overheating of the power supply device.

[0061] like Figure 6 As shown, Figure 6 401, a first connection module 402, a temperature detection module 403, and a first port protection module 404. The connection mode and function of the processing module 401, the first connection module 402, the temperature detection module 403, and the first port protection module 404 are shown in FIG. Figure 2 As shown, no further description is given here.

[0062] The power supply device further includes: a second connection module 404 ; the temperature detection module 403 includes: a voltage division protection unit 4031 , a first temperature detection unit 4032 , and a filter module 4033 ; and further includes: a second temperature detection unit 4032 .

[0063] The second temperature detection unit 4034 of the temperature detection module 403 is set within a preset range of the voltage end of the second connection module 404, and the second temperature detection unit 4032 detects the temperature of the voltage end of the second connection module 404, and sends the temperature of the voltage end of the second connection module 404 to the processing module 401. That is, the processing module 401 receives the temperature of the voltage end of the second connection module 404 through the second temperature detection unit 4032.

[0064] The voltage end of the second connection module 404 is connected to the first end of the first port protection module 402. When the processing module 401 determines that the temperature of the voltage end of the second connection module 404 exceeds the preset temperature, the first port protection module 402 is controlled to switch to the off state to stop receiving the working voltage through the voltage end of the second connection module 404.

[0065] The communication end of the processing module 401 is connected to the communication end of the second connection module 404, and the communication end of the second connection module 404 is used to communicate with the power supply device that outputs the working voltage to the voltage end of the second connection module 404 (the power supply device is different from the power supply device that outputs the working voltage to the voltage end of the first connection module 402).

[0066] When determining the temperature of the voltage end of the second connection module 404, the processing module 401 sends power supply stop information to the power supply device that outputs the working voltage at the voltage end of the second connection module 404 through the communication end of the second connection module 404 (or actively disconnects the communication connection with the power supply device so that the power supply device triggers the condition of receiving the power supply stop information), so that the power supply device that outputs the working voltage to the voltage end of the second connection module 404 stops outputting the working voltage to the power supply device based on the power supply stop information.

[0067] In this embodiment, the power supply device may include multiple connection modules, that is, it has multiple connectors, each connection module is provided with a voltage terminal and a communication terminal, and is respectively connected to different power supply devices or power receiving devices. In other words, the power supply device can be connected to multiple power supply devices at the same time. And in this embodiment, the temperature detection module includes multiple temperature detection units, each temperature detection unit is arranged near the voltage terminal of each connection module, and is connected to the processing module through the detection terminal of the same processing module, saving the I / O interface of the processing module. When the processing module determines that the voltage of a certain temperature detection unit is less than the preset voltage, it determines that the voltage terminal of a certain connection module is overheated, and the power supply device can be better protected by controlling the first port protection module to stop multiple connection modules from receiving the working voltage and sending a stop power supply stop signal to multiple power supply devices or power receiving devices.

[0068] According to the power supply device provided by the present application, the temperature detection module detects the temperature of the voltage end of the first connection module and sends the temperature value to the processing module, the processing module determines whether the temperature of the voltage end of the first connection module exceeds the preset temperature, and stops receiving the working voltage through the voltage end of the first connection module when the temperature exceeds the preset temperature, and sends the power supply stop information to the power supply device through the communication end, so that the power supply device stops outputting the working voltage to the power supply device based on the power supply stop information. In other words, when the power supply device provided by the present application has an overtemperature in the connector of the power supply device, it not only stops receiving the working voltage of the power supply device, but also instructs the power supply device to stop outputting the working voltage to the power supply device through the communication connection with the credit device. Compared with the traditional one-way protection that only stops receiving the working voltage, the present application can better protect the power supply device during the power supply process, and avoid problems such as circuit failure or even melting of the connector shell due to overheating of the power supply device.

[0069] like Figure 7 As shown, Figure 7 4 is a schematic diagram of the structure of a power supply device provided in an embodiment of the present application. The power supply device includes: a processing module 401, a first connection module 402, a temperature detection module 403 and a first port protection module 404.

[0070] The power supply device further includes: a second port protection module 505. The voltage end of the processing module 501 is connected to the first end of the second port protection module 505, and the second end of the second port protection module 505 is connected to the voltage end of the second connection module 504. When the processing module 501 determines that the temperature of the voltage end of the second connection module 504 exceeds a preset temperature, the processing module 501 controls the second port protection module 505 to switch to an off state to stop receiving the working voltage through the voltage end of the second connection module 504.

[0071] In other words, in this embodiment, a plurality of connection modules are protected by a plurality of second port protection modules respectively. When the temperature of a certain connection module rises to a preset temperature, the connection module with the increased temperature can be protected more accurately.

[0072] based on Figure 7 The structural diagram of the power supply device shown in FIG. Figure 8 As shown, Figure 8 It is a structural schematic diagram of a power supply device provided in an embodiment of the present application.

[0073] The second temperature detection unit 5022 includes: a second thermistor NTC2 . A first end of the second thermistor NTC2 is connected to a second end of the first resistor R1 in the voltage division protection unit, and a second end of the second thermistor NTC2 is connected to a detection end of the processing module 501 .

[0074] According to the power supply device provided by the present application, the temperature detection module detects the temperature of the voltage end of the first connection module and sends the temperature value to the processing module, the processing module determines whether the temperature of the voltage end of the first connection module exceeds the preset temperature, and stops receiving the working voltage through the voltage end of the first connection module when the temperature exceeds the preset temperature, and sends the power supply stop information to the power supply device through the communication end, so that the power supply device stops outputting the working voltage to the power supply device based on the power supply stop information. In other words, when the power supply device provided by the present application has an overtemperature in the connector of the power supply device, it not only stops receiving the working voltage of the power supply device, but also instructs the power supply device to stop outputting the working voltage to the power supply device through the communication connection with the credit device. Compared with the traditional one-way protection that only stops receiving the working voltage, the present application can better protect the power supply device during the power supply process, and avoid problems such as circuit failure or even melting of the connector shell due to overheating of the power supply device.

[0075] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing related hardware through a computer program, and the program can be stored in a computer-readable storage medium, and when the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The storage medium can be a disk, an optical disk, a read-only storage memory, or a random access memory, etc.

[0076] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] The above disclosure is only the preferred embodiment of the present application, which certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A power supply device, characterized in that: The power supply device comprises: a processing module, a first connection module, a temperature detection module and a first port protection module; The temperature detection module is arranged within a preset range of the voltage terminal of the first connection module, and the voltage terminal of the first connection module is used to receive the working voltage input from the power supply device to the power supply device; The processing module includes a detection end, a voltage end and a communication end, the detection end of the processing module is connected to the output end of the temperature detection module, the temperature detection module detects the temperature of the voltage end of the first connection module, and sends the temperature to the processing module; The voltage end of the processing module is connected to the first end of the first port protection module, and the second end of the first port protection module is connected to the voltage end of the first connection module. When the processing module determines that the temperature exceeds the preset temperature, the processing module controls the first port protection module to switch to an off state to stop receiving the working voltage through the voltage end of the first connection module; The communication end of the processing module is connected to the communication end of the first connection module, and the communication end of the first connection module is used to communicate with the power supply device. When the processing module determines that the temperature exceeds the preset temperature, the processing module sends power supply stop information to the power supply device through the communication end of the first connection module, so that the power supply device stops outputting the working voltage to the power supply device based on the power supply stop information.

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

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

4. The power supply device according to claim 2, characterized in that: The voltage division protection unit comprises: a first resistor; A first end of the first resistor receives the reference voltage, and a second end of the first resistor is connected to a first end of the first temperature detection unit.

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

6. The power supply device according to claim 5, characterized in that: The filtering unit comprises: a second resistor and a capacitor; The first end of the second resistor is connected to the first end of the first temperature detection unit, the second end of the second resistor is respectively connected to the first end of the capacitor and the detection end of the processing module, and the second end of the capacitor is grounded.

7. The power supply device according to claim 2, characterized in that: The power supply device further includes: a second connection module; the temperature detection module further includes: a second temperature detection unit; The second temperature detection unit of the temperature detection module is set within a preset range of the voltage end of the second connection module, the second temperature detection unit detects the temperature of the voltage end of the second connection module, and sends the temperature of the voltage end of the second connection module to the processing module; The voltage end of the second connection module is connected to the first end of the first port protection module, and when the processing module determines that the temperature of the voltage end of the second connection module exceeds the preset temperature, the processing module controls the first port protection module to switch to an off state to stop receiving the working voltage through the voltage end of the second connection module; The communication end of the processing module is connected to the communication end of the second connection module, and the communication end of the second connection module is used to communicate with the power supply device that outputs the working voltage at the voltage end of the second connection module. When the processing module determines that the temperature of the voltage end of the second connection module exceeds the preset temperature, the processing module sends power supply stop information to the power supply device that outputs the working voltage at the voltage end of the second connection module through the communication end of the second connection module, so that the power supply device that outputs the working voltage at the voltage end of the second connection module stops outputting the working voltage to the power supply device based on the power supply stop information.

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

9. The power supply device according to claim 2, characterized in that: The power supply device further includes: a second port protection module and a second connection module; The voltage end of the processing module is connected to the first end of the second port protection module, and the second end of the second port protection module is connected to the voltage end of the second connection module. When the processing module determines that the temperature of the voltage end of the second connection module exceeds the preset temperature, the processing module controls the second port protection module to switch to an off state to stop receiving the working voltage through the voltage end of the second connection module.

10. The power supply device according to claim 1, characterized in that: The first port protection module includes: a MOS tube; The voltage end of the processing module is connected to the first end of the MOS tube, and the second end of the MOS tube is connected to the voltage end of the first connection module. When the processing module determines that the temperature exceeds the preset temperature, the MOS tube is controlled to switch to the off state to stop receiving the working voltage through the voltage end of the first connection module.

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