Integrated self-cooling low-voltage power manager and configuration method thereof

Abstract

The invention provides an integrated self-cooling low-voltage power manager and a configuration method thereof, and particularly relates to the field of transformation devices. The manager comprises an integrated voltage conversion module, a heat dissipation module and an interface; the integrated voltage conversion module is located in the manager; the heat dissipation module is located above the manager; and the interface is positioned on one side of the manager. The method comprises the following steps: S1, collecting back-end load power; s2, counting the required power of each voltage platform; s3, selecting a DCDC converter step by step; and S4, configuring the integrated self-cooling low-voltage power supply manager. According to the integrated self-cooling low-voltage power supply manager provided by the invention, a high-voltage power supply is converted step by step, so that power can be supplied to a plurality of voltage platforms, and meanwhile, the heat dissipation module ensures equipment operation.

Description

Technical Field

[0001] The invention belongs to the field of voltage transformation devices, and in particular relates to an integrated self-cooling low-voltage power supply manager and a configuration method thereof. Background Art

[0002] The low-voltage power manager is a critical low-voltage power distribution device on drones. Its core function is to convert the high-voltage DC power provided by the high-voltage power supply into the 28V low-voltage DC power required by the airborne equipment to ensure the stable operation of the aircraft systems. At the same time, it also has various load current and voltage monitoring and short-circuit protection, over-temperature protection and other safety functions to effectively protect the equipment and lines.

[0003] For example, Chinese patent CN117713502A (publication date: March 15, 2024) discloses a low-voltage power distribution system and method for fire-fighting drones. By adopting a high-voltage to low-voltage switching power supply and a low-voltage power supply separation solution in the power supply module, interference between the high-voltage circuit and the low-voltage circuit can be effectively avoided, thereby reducing power supply failures.

[0004] Chinese patent CN219625905U (publication date: September 1, 2023) discloses a high-voltage to low-voltage power management device, which realizes the high-voltage to low-voltage function while ensuring the accuracy of the LDO output voltage, without additional mask consumption and increasing the load range.

[0005] However, with the development of drones and their supporting electrical equipment, various voltage platform products have emerged, such as 5V, 12V, 24V, 28V, 48, 120V, etc. The existing low-voltage power manager DCDC voltage conversion is relatively simple, which limits the selection and matching of equipment and cannot handle multiple voltage platforms at the same time. In addition, when working in a high-power state, the DCDC self-heats high, and the heat cannot be dissipated by its own heat dissipation teeth, causing overheating protection, and in severe cases, burning the equipment. Summary of the invention

[0006] In order to simultaneously convert the high voltage electricity provided by the high voltage power supply into multiple different output voltages, the present invention provides an integrated self-cooling low voltage power supply manager and a configuration method thereof. The manager includes an integrated voltage conversion module, a heat dissipation module, and an interface;

[0007] The integrated voltage conversion module is located inside the manager; the heat dissipation module is located above the manager; and the interface is located on one side of the manager;

[0008] The integrated voltage conversion module includes a multi-level voltage conversion module selected step by step, which is used to supply power to multiple voltage platforms.

[0009] Furthermore, the heat dissipation module includes a temperature sensor, a fan controller, a fan motor, a fan power supply, a heat dissipation fan, and heat dissipation gears;

[0010] The heat dissipation teeth are arranged in parallel above the manager, and the heat dissipation fan is embedded in the heat dissipation teeth;

[0011] The output port of the fan power supply is connected to the input port of the fan motor, and the fan motor is used to control the rotation of the cooling fan;

[0012] The output port of the temperature sensor is connected to the input port of the fan controller;

[0013] The output port of the fan controller is connected to the input port of the fan motor.

[0014] Furthermore, the multi-level voltage conversion module of the integrated voltage conversion module is a multi-level DCDC converter, which is used to convert the high voltage electricity input by the power input module into a gradually decreasing voltage and output each level of voltage.

[0015] Furthermore, the interface includes a high voltage input interface, an emergency battery interface, a ground power interface, and an external communication interface;

[0016] The output port of the high voltage input interface is connected to the input port of the integrated voltage conversion module;

[0017] The high voltage input interface is used to access a high voltage power source that can provide high voltage electricity greater than 300V.

[0018] Furthermore, the integrated voltage conversion module can convert the high voltage electricity connected to the high voltage input interface into low voltage electricity of 5-240V.

[0019] Furthermore, the ground power interface is connected to a ground maintenance low-voltage power supply for performing ground testing on the manager; and the external communication interface is connected to external communication equipment.

[0020] Furthermore, the emergency battery interface is connected to an emergency low-voltage battery for emergency power supply when the integrated voltage conversion module fails.

[0021] A method for configuring an integrated self-cooling low voltage power manager comprises the following steps:

[0022] S1. Collect the power list of each load at the back end and count the voltage platform and power required by each load;

[0023] S2. Count the power required for each voltage platform according to the working voltage of each load;

[0024] S3. Select DCDC converters step by step according to the power of each voltage platform. For the voltage platform with the lowest power requirement, the calculation formula for the power of each DCDC converter is:

[0025] P 额(x) =1.25(p (x) +P 额(x-1) )

[0026] Among them, p (x) is the power required for a voltage platform; P 额(x) is the rated power of the first-level DCDC converter, which is the power required by the corresponding voltage platform output by the DCDC converter. 额(0) =0; x=1, 2, 3...10, the larger the x, the greater the power required by the DCDC converter power or voltage platform;

[0027] S4, according to step S3, select DCDC converters step by step to configure an integrated voltage conversion module, and then configure an integrated self-cooling low-voltage power manager in combination with a heat dissipation module and an interface.

[0028] Compared with the prior art, the advantages and effects of this application are as follows:

[0029] 1. The present invention provides an integrated self-cooling low-voltage power supply manager, which has a systematic design in DCDC conversion, integrating the needs of various voltage platforms, and can simultaneously convert the high voltage electricity provided by the high-voltage power supply into multiple different output voltages. In addition, an embedded fan is added to the heat dissipation teeth, which can automatically adjust the speed as the working temperature changes to achieve the effect of reducing power consumption.

[0030] 2. The present invention provides a configuration method for an integrated self-cooling low-voltage power supply manager. According to the load power of each output end, a suitable voltage conversion module device is selected to achieve power matching and maximum efficiency, which can simultaneously meet the power requirements of electrical equipment on each platform.

[0031] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application so that it can be implemented in accordance with the contents of the specification, and to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following is a detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings as follows.

[0032] Based on the detailed description of the specific embodiments of the present application in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other objects, advantages and features of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0034] in:

[0035] Figure 1 A schematic diagram of an integrated self-cooling low-voltage power manager according to an embodiment of the present invention;

[0036] Figure 2 A schematic diagram of a configuration method of an integrated self-cooling low-voltage power supply manager according to an embodiment of the present invention;

[0037] Figure numerals: 1. heat dissipation module; 2. high voltage input interface; 3. emergency battery interface; 4. ground power interface; 5. external communication interface; 6. cooling fan; 7. cooling teeth. Specific embodiments

[0038] To make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme in the embodiment of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, rather than all of the embodiments. In the following description, specific details such as specific configuration and components are provided only to help fully understand the embodiments of the present application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, for clarity and brevity, the description of known functions and structures is omitted in the embodiment.

[0039] It should be understood that the references to "one embodiment" or "this embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present application. Therefore, the references to "one embodiment" or "this embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0040] In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0041] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that there can be two relationships. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0042] The term "at least one" in this article is merely a description of the association relationship of associated objects, indicating that there may be three relationships. For example, at least one of A and B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0043] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusions.

[0044] Example 1

[0045] like Figure 1 The embodiment shown relates to an integrated self-cooling low-voltage power manager, the manager comprising an integrated voltage conversion module, a high-voltage input interface 1, a heat dissipation module 2, an emergency battery interface 3, a ground power interface 4, and an external communication interface 5;

[0046] The high-voltage input interface 1, the emergency battery interface 3, the ground power interface 4, and the external communication interface 5 are all located on one side of the manager; the heat dissipation module 2 is located above the manager, and the integrated voltage conversion module is located inside the manager;

[0047] The output port of the high voltage input interface 1 is connected to the input port of the integrated voltage conversion module;

[0048] The integrated voltage conversion module includes a voltage control module and a multi-level voltage conversion module, which is used to supply power to multiple voltage platforms;

[0049] The high voltage input interface 1 is used to access a high voltage power source that can provide high voltage electricity greater than 300V.

[0050] Furthermore, the heat dissipation module 2 includes a temperature sensor, a fan controller, a fan motor, a fan power supply, a heat dissipation fan 6, and heat dissipation teeth 7;

[0051] The heat dissipation teeth are arranged in parallel above the manager, and the heat dissipation fan is embedded in the heat dissipation teeth;

[0052] The output port of the fan power supply is connected to the input port of the fan motor, and the fan motor is used to control the rotation of the cooling fan and to supply power to the fan motor;

[0053] The output port of the temperature sensor is connected to the input port of the fan controller;

[0054] The output port of the fan controller is connected to the input port of the fan motor for controlling the fan motor.

[0055] Furthermore, the multi-level voltage conversion module of the integrated voltage conversion module is a plurality of DCDC converters, which are used to convert the high voltage input by the power input module into a gradually decreasing voltage and output each level of voltage. The DCDC converter has built-in overvoltage protection, input overvoltage and undervoltage protection, overcurrent protection, overtemperature protection, constant voltage current feedback, current sharing, and enable control functions.

[0056] Furthermore, the integrated voltage conversion module can convert the high voltage electricity connected to the high voltage input interface 1 into low voltage electricity of 5-240V.

[0057] Furthermore, the ground power interface 4 is connected to a ground maintenance low-voltage power supply for performing ground testing on the manager; and the external communication interface 5 is used to connect to external communication equipment.

[0058] Furthermore, the emergency battery interface 3 is connected to an emergency low-voltage battery for emergency power supply when the integrated voltage conversion module fails.

[0059] Furthermore, the heat dissipation module performs heat dissipation including the following steps:

[0060] 1. The temperature sensor collects the temperature of the integrated voltage conversion module;

[0061] 2. The fan controller calculates the corresponding rotation speed according to the temperature collected by the temperature sensor;

[0062] 3. The fan controller controls the fan motor to adjust the speed, thereby controlling the cooling fan, and combining with the cooling gears to dissipate heat for each level of DCDC converter.

[0063] Technical effect of this embodiment: This embodiment integrates the power requirements of various voltage platforms, reduces the weight of the system, and avoids the problem of using multiple power supplies with different voltages as substitutes, which would significantly increase the system weight and installation space occupied.

[0064] Example 2

[0065] like Figure 2 As shown, this embodiment provides a configuration method of an integrated self-cooling low-voltage power manager based on Embodiment 1, comprising the following steps:

[0066] S1. Collect the power list of each load at the back end and count the voltage platform and power required by each load;

[0067] S2. Count the power required for each voltage platform according to the working voltage of each load;

[0068] S3. Select DCDC converters step by step according to the power of each voltage platform. For the voltage platform with the lowest power requirement, the calculation formula for the power of each DCDC converter is:

[0069] P 额(x) =1.25(p (x) +P 额(x-1) )

[0070] Among them, p (x) is the power required for a voltage platform; P 额(x) is the rated power of the first-level DCDC converter, which is the power required by the corresponding voltage platform output by the DCDC converter. 额(0) =0; x=1, 2, 3...10, the larger the x, the greater the power required by the DCDC converter power or voltage platform;

[0071] S4, configuring the DCDC converter selected in step S3 step by step, as well as the heat dissipation module and the interface with an integrated self-cooling low-voltage power manager.

[0072] Technical effect of this embodiment: This embodiment provides a configuration method for an integrated self-cooling low-voltage power supply manager. The heat dissipation module is combined with a step-by-step selected DCDC converter to reduce system risks, improve safety, and save costs.

[0073] Example 3

[0074] This embodiment provides a method for selecting and using a DCDC converter of an integrated voltage conversion module of an integrated self-cooling low-voltage power manager based on Embodiments 1 and 2, which is applicable to a situation where the power required by a voltage platform is determined, and includes the following steps:

[0075] 1. Collect the power list of each load at the back end and count the voltage platform and power required by each load;

[0076] 2. Count the power required for each voltage platform according to the working voltage of each load;

[0077] 3. Select DCDC modules step by step according to the power of each voltage platform, starting from the lowest voltage platform, taking 300V high voltage input, 120V, 48V, 12V, 5V four voltage platform output as an example:

[0078] The minimum voltage platform is 5V, and the total power of all loads on the 5V platform is p (1) , then the rated power is 1.25 times p (1) 12V to 5V DCDC module;

[0079] The next level voltage platform is 12V, and the total power of all loads on the 12V platform is p (2) , then the rated power is 1.25(p (2) +1.25p (1) ) 48V to 12V DCDC module;

[0080] By analogy, the calculation is accumulated step by step, and the final calculation result is that the rated power of the 300V to 120V DCDC module is 1.25 (p (4) +1.25(p (3) +1.25(p (2) +1.25p (1) ))).

[0081] The back-end of each level of the DCDC module outputs the power of the corresponding voltage platform.

[0082] Technical effect of this embodiment: The method for selecting the DCDC converter of the integrated voltage conversion module of the integrated self-cooling low-voltage power supply manager provided by this embodiment can adopt Example 2 to set multiple DCDC converters in the manager, and the voltage control module selects a matching and power-saving DCDC converter according to actual needs; this embodiment can also be used to select the integrated voltage conversion module by calculation when the power required by the voltage platform is fixed, so as to achieve power matching and maximum efficiency during the implementation process.

[0083] The above description is only the preferred embodiment of the present invention, which does not limit the protection scope of the present invention. For those skilled in the art, the present invention can be modified and varied in various ways. Within the spirit and principle of the present invention, any change, modification, replacement, integration and parameter change of these embodiments by conventional substitution or capable of achieving the same function without departing from the principle and spirit of the present invention shall fall within the protection scope of the present invention.

Claims

1. An integrated self-cooling low voltage power manager, characterized in that: It includes an integrated voltage conversion module, a heat dissipation module (1), and an interface; The integrated voltage conversion module is located inside the manager; the heat dissipation module (1) is located above the manager; and the interface is located on one side of the manager; The integrated voltage conversion module includes a multi-level voltage conversion module selected step by step, which is used to supply power to multiple voltage platforms.

2. The integrated self-cooling low voltage power manager according to claim 1, characterized in that: The heat dissipation module (1) comprises a temperature sensor, a fan controller, a fan motor, a fan power supply, a heat dissipation fan (6), and heat dissipation teeth (7); The heat dissipation teeth are arranged in parallel above the manager, and the heat dissipation fan is embedded in the heat dissipation teeth; The output port of the fan power supply is connected to the input port of the fan motor, and the fan motor is used to control the rotation of the cooling fan; The output port of the temperature sensor is connected to the input port of the fan controller; The output port of the fan controller is connected to the input port of the fan motor.

3. The integrated self-cooling low voltage power supply manager according to claim 1, characterized in that: The multi-level voltage conversion module of the integrated voltage conversion module is a multi-level DCDC converter, which is used to convert the high voltage electricity input by the power input module into a gradually decreasing voltage and output each level of voltage.

4. The integrated self-cooling low voltage power manager according to claim 1, characterized in that: The interface comprises a high voltage input interface (2), an emergency battery interface (3), a ground power interface (4), and an external communication interface (5); The output port of the high voltage input interface (2) is connected to the input port of the integrated voltage conversion module; The high-voltage input interface (2) is used to access a high-voltage power source capable of providing high-voltage electricity greater than 300V.

5. The integrated self-cooling low voltage power supply manager according to claim 4, characterized in that: The integrated voltage conversion module can convert the high voltage electricity connected to the high voltage input interface (2) into low voltage electricity of 5-240V.

6. The integrated self-cooling low voltage power manager according to claim 5, characterized in that: The ground power supply interface (4) is connected to a ground maintenance low-voltage power supply for performing ground testing on the manager; the external communication interface (5) is connected to external communication equipment.

7. The integrated self-cooling low voltage power manager according to claim 6, characterized in that: The emergency battery interface (3) is connected to an emergency low-voltage battery and is used for emergency power supply when the integrated voltage conversion module fails.

8. The configuration method of the integrated self-cooling low-voltage power manager according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. Collect the power list of each load at the back end and count the voltage platform and power required by each load; S2. Count the power required for each voltage platform according to the working voltage of each load; S3. Select DCDC converters step by step according to the power of each voltage platform. For the voltage platform with the lowest power requirement, the calculation formula for the power of each DCDC converter is: P 额(x) =1.25(p (x) +P 额(x-1) ) Among them, p (x) is the power required for a voltage platform; P 额(x) is the rated power of the first-level DCDC converter, which is the power required by the corresponding voltage platform output by the DCDC converter. 额(0) =0; x=1, 2, 3...10, the larger the x, the greater the power required by the DCDC converter power or voltage platform; S4, according to step S3, select DCDC converters step by step to configure an integrated voltage conversion module, and then combine the heat dissipation module and the interface to configure an integrated self-cooling low-voltage power manager.

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