High-precision power supply body design and regulation and control technology based on digital control

Abstract

The invention relates to the technical field of digital power supplies, and discloses a digital control-based high-precision power supply body design and regulation technology, which comprises a shell, a control panel is mounted in front of the shell, a battery cell is mounted on the inner wall of the shell, the battery cell is electrically connected with the control panel, and an unfolding mechanism is arranged on the inner wall of the shell; the unfolding mechanism comprises a motor, the motor is fixedly connected with the inner wall of the shell, a connecting ring is fixedly connected to a driving shaft of the motor, an inner threaded sleeve is fixedly connected to the outer arc surface of the connecting ring, an ejector rod is in threaded connection with the inner wall of the inner threaded sleeve, and a guide frame is fixedly connected to the inner wall of the shell. And the ejector rod is in sliding connection with the inner wall of the guide frame. According to the invention, by arranging the unfolding mechanism, when the power supply is in a high-load state, the active heat dissipation mechanism can be automatically opened, so that the active heat dissipation mechanism is unfolded, and the power supply in the high-load state is cooled and dissipated in cooperation with the heat dissipation grid.

Description

Technical Field

[0001] The present invention relates to the technical field of digital power supplies, and in particular to a high-precision power supply body design and regulation technology based on digital control. Background Art

[0002] Digital power supplies are a new type of power supply system based on digital signal processing (DSP) and microcontroller (MCU) technologies, implementing power management and control through software programming. This differs from the hardware circuit control method of traditional analog power supplies. Its core function is to acquire parameters such as output voltage and current in real time through an analog-to-digital converter (ADC). After processing by a digital controller, it adjusts the operating state of power devices (such as MOSFETs and IGBTs) through technologies such as pulse-width modulation (PWM), achieving functions such as voltage / current regulation, dynamic response optimization, and fault protection. Digital power supplies are widely used in data centers, communication base stations, industrial automation, and new energy. Especially in scenarios requiring precise power management, multi-mode switching, or intelligent monitoring, they have become a mainstream alternative to traditional analog power supplies, driving the development of power supply technology towards higher efficiency, intelligence, and networking.

[0003] Existing digital power supplies rely on integrated heat dissipation structures for cooling during operation. When the device enters high-speed charging and discharging mode, the heat generated per unit time increases exponentially. The integrated heat dissipation structure has a long heat conduction path and a limited heat dissipation area, resulting in the heat dissipation efficiency not matching the heat generation power. This thermal imbalance causes heat to continue to accumulate inside the power supply, causing the temperature of core components to exceed the safety threshold. In high-temperature environments, the on-resistance of semiconductor devices increases and their lifespan is shortened. The electrolyte volatilization of passive components such as capacitors is accelerated, and may even cause physical damage such as carbonization of the PCB board and cracking of solder joints. At the same time, heat accumulation will trigger the power supply's overheating protection mechanism, resulting in output power reduction or frequent shutdowns, seriously affecting the continuity and reliability of the equipment, and further causing systemic safety accidents. To this end, we propose a high-precision power supply body design and regulation technology based on digital control. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the present invention provides a high-precision power supply body design and regulation technology based on digital control, which solves the problem that existing digital power supplies will accumulate heat and trigger the overheating protection mechanism of the power supply, resulting in output power reduction or frequent shutdowns, seriously affecting the continuity and reliability of the equipment, and thus causing systemic safety accidents.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a high-precision power supply body design and control technology based on digital control, comprising a housing, a control panel mounted on the front of the housing, a battery cell mounted on the inner wall of the housing, the battery cell being electrically connected to the control panel, and an expansion mechanism provided on the inner wall of the housing;

[0008] The unfolding mechanism includes a motor, the motor is fixedly connected to the inner wall of the shell, a connecting ring is fixedly connected to the driving shaft of the motor, the outer arc surface of the connecting ring is fixedly connected to an internally threaded sleeve, the inner wall of the internally threaded sleeve is threadedly connected to a push rod, the inner wall of the shell is fixedly connected to a guide frame, the push rod is slidably connected to the inner wall of the guide frame, the inner wall of the guide frame is fixedly connected to a grating sensor, the outer arc surface of the push rod is provided with a groove, and the inner wall of the push rod located in the groove is fixedly connected to a grating ruler adapted to the grating sensor;

[0009] An active heat dissipation mechanism for cooling the battery cell is provided on the upper surface of the push rod. A temperature sensor for monitoring the battery cell temperature is fixedly connected to the inner wall of the shell. The battery cell temperature collected by the temperature sensor is converted into a digital signal by ADC and input into the PID adjustment module of the digital controller together with the output signal of the current sensor. The controller optimizes the PWM duty cycle to ensure the output voltage accuracy while suppressing the increase in device loss caused by high temperature.

[0010] Preferably, a support foot is fixedly connected to the lower surface of the shell, and a heat dissipation grille is provided on both the left and right sides of the shell. The heat dissipation grille is connected to the interior of the shell. The heat dissipation grille can be used to achieve autonomous heat dissipation of the device, and then the device can use its own integrated heat dissipation structure to dissipate heat in an environment where heat rise is normal, thereby ensuring the safety of the power supply in a non-high-speed charging and discharging state.

[0011] Preferably, a positioning plate is fixedly connected to the inner wall of the shell, and the positioning plate is fixedly connected to the upper surface of the motor. A sliding groove is provided on the surface of the push rod, and a protrusion adapted to the sliding groove is provided on the inner wall of the guide frame. The cooperation of the sliding groove and the protrusion can guide the moving direction of the push rod, and avoid the push rod rotating synchronously with the internal threaded sleeve, which causes the push rod to be unable to unfold normally, thereby ensuring the normal use of the push rod.

[0012] Preferably, the motor control panel is electrically connected, the grating sensor is electrically connected to the control panel, and the internal threaded sleeve is rotatably connected to the lower surface of the connecting ring. By utilizing the cooperation of the grating sensor and the grating ruler, the moving distance of the push rod can be detected so that the push rod can stop moving when the cover plate is lifted to a specified height, thereby ensuring that the upper air outlet of the air duct driven by the push rod is aligned with the heat dissipation fins.

[0013] Preferably, the active heat dissipation mechanism includes a cover plate, which is mounted on the upper surface of the top rod, and the lower surface of the cover plate is fixedly connected to an air duct, the inner wall of the air duct is fixedly connected to a bracket, and the surface of the bracket is fixedly connected to a cooling fan, and the cooling fan is directly powered by an auxiliary power module of the power supply (such as a 5V / 12V linear regulator), and the PWM control signal of the drive motor and the PWM signal of the main circuit share an on-board clock source to ensure that the heat dissipation intensity adjustment is synchronized with the power conversion rhythm, and the inner wall of the air duct is fixedly connected to an isolation frame, and the surface of the isolation frame is fixedly connected to a partition;

[0014] The upper surface of the battery cell is fixedly connected with a heat dissipation fin, the inner wall of the air duct is fixedly connected with a power supply contact 1, and the inner wall of the shell is fixedly connected with a power supply contact 2 adapted to the power supply contact 1. The heat dissipation fins can be used to guide the heat generated by the battery cell, thereby improving the heat dissipation effect of the heat dissipation fan on the battery cell, so as to enhance the power supply's temperature control of the battery cell under high-speed charging and discharging conditions.

[0015] Preferably, there are two air ducts, which are mirror-set with the transverse axis of the cover plate as the mirror axis. The air ducts are located inside the shell. By cooperating with the air ducts and the isolation frame, the airflow generated by the cooling fan can be separated and guided, so that the airflow utilizes the upper and lower air outlets to cool different areas.

[0016] Preferably, the partition is fixedly connected to the inner wall of the air duct, the cooling fan is electrically connected to power supply contact 1, and power supply contact 2 is electrically connected to the control panel. The partition can be used to separate the upper flow channel isolated by the isolation frame and the air duct, so that each cooling fan can use a separate flow channel to guide the airflow through the upper air outlet, reducing mutual interference between the airflows.

[0017] Preferably, the inner wall of the push rod is provided with a locking mechanism, the locking mechanism includes a latch, the latch is inserted into the inner wall of the push rod, the latch passes through the lower surface of the cover plate, the upper surface of the latch is fixedly connected to the limit frame, the limit frame abuts against the upper surface of the cover plate, the upper surface of the latch is provided with a mounting cavity, the inner wall of the latch located in the mounting cavity is slidably connected to a connecting plate, the side surface of the connecting plate is fixedly connected to a bayonet, the inner wall of the push rod is provided with a slot, and the bayonet is plugged into the inner wall of the slot;

[0018] The cam is fixedly connected to the side of the connecting plate away from the pin, and the spring is fixedly connected to the inner wall of the installation cavity. The pin is located at the inner wall of the installation cavity and is slidably connected to a pressure column. The lower surface of the pressure column is fixedly connected to an extrusion frame, and the extrusion frame abuts against the upper surface of the connecting plate. The upper surface of the pressure column is fixedly connected to a pressing block, and the pressing block is slidably connected to the inner wall of the installation cavity. The pressing block is slidably connected to the inner wall of the limit frame. The elasticity of the spring can limit the position of the connecting plate, so that the connecting plate can limit the position of the pin when no external force is applied, and ensure that the pin can be stably inserted in the card slot, thereby locking the position of the pin.

[0019] Preferably, a restraining frame is fixedly connected to the surface of the pressure column, and the restraining frame is slidably connected to the inner wall of the installation cavity. A receiving groove adapted to the extrusion portion of the extrusion frame is provided on the surface of the pin, the upper surface of the connecting plate is provided with a chamfer, and the lower surface of the extrusion frame is provided with a chamfer. The restraining frame can be used to limit the moving distance of the restraining frame to ensure that the moving space of the pressure column is located within the installation cavity.

[0020] Preferably, S1, when using the power supply for power supply, take out the connecting cable, plug one end of the connecting cable into the connector of the control panel, and plug the other end into the connector of the device to be powered. After the connection is completed, turn on the switch on the control panel. After the switch is turned on, the battery cell supplies power to the device to be powered through the voltage stabilizing mainboard integrated on the control panel and the connecting cable. At the same time, the remaining power of the battery cell will be synchronously displayed on the display screen of the control panel; when the power supply is exhausted and needs to be charged, plug the charging cable into the charging port of the control panel, and plug the charging head into the powered plug board, and then the battery cell can be charged under the power supply of the plug board;

[0021] S2. During the charging and discharging process of the battery cell, the temperature sensor located in the housing will monitor the temperature of the battery cell in real time. When the detected battery cell temperature reaches the set threshold of ±2°C, the temperature sensor cooperates with the control panel to control the motor to work. The motor is energized to rotate the connecting ring, and the connecting ring rotates the internal threaded sleeve. The internal threaded sleeve engages with the ejector rod through the thread. Under the action of the guide frame, the ejector rod drives the grating ruler to move upward and push the cover. During the movement, the grating ruler cooperates with the grating sensor to measure the movement distance of the ejector rod. When the movement distance of the ejector rod reaches the designed spacing, the grating sensor cooperates with the control panel to turn off the motor. At the same time, the connecting ring stops driving the internal threaded sleeve, the internal threaded sleeve stops engaging with the ejector rod, the ejector rod stops moving, and with the assistance of the internal threaded sleeve, the position of the unfolded cover plate is locked;

[0022] S3. When the cover moves, the cover pulls the air duct upwards, and the air duct drives the cooling fan and the power supply contact 1 to move. The power supply contact 1 contacts the power supply contact 2 during the movement. After the power supply contact 1 and the power supply contact 2 are connected, the power supply contact 2 cooperates with the power supply contact 1 to supply power to the cooling fan. The cooling fan is powered on to blow air into the air duct. At the same time, the digital controller based on the power supply body is used to automatically reduce the output power by Y% every time the temperature rises by X℃, and the speed of the cooling fan is increased proportionally. The air blown into the air duct is guided by the isolation frame and discharged from the two air outlets of the air duct. The airflow in the upper air outlet is discharged through the independent passage under the action of the partition. The air is guided by the air duct to the heat sink fins, and the battery cells are cooled in cooperation with the heat sink fins. The airflow in the lower air outlet is directly blown to the battery cells through the air duct, so as to cool the battery cells in cooperation with the heat sink fins and the upper air outlet. When the temperature sensor detects that the temperature of the battery cells drops to the safety threshold of ±2°C, the control panel controls the motor to work, and the motor drives the connecting ring in reverse, so that the internal threaded sleeve drives the ejector pin to reset through the thread, and the ejector pin pulls the cover plate to reset during the reset. The cover plate is forced to push the air duct, and the air duct pushes the cooling fan and the power supply contact 1. The power supply contact 1 moves away from the power supply contact 2, and stops supplying power to the cooling fan. The cooling fan stops working and is retracted into the outer casing.

[0023] In summary, the technical effects and advantages of the present invention are:

[0024] 1. In the present invention, by providing an expansion mechanism, the active heat dissipation mechanism can be automatically opened when the power supply is in a high-load state, so that the active heat dissipation mechanism is expanded and cooperates with the heat dissipation grille to cool and dissipate the heat of the power supply in a high-load state.

[0025] 2. In the present invention, by setting up an active heat dissipation mechanism, the power supply can use the additional heat dissipation structure to cool down its own high-temperature area under high-load conditions. At the same time, the openable shielding structure is used to increase the contact area between the internal structure of the power supply and the external gas, effectively improving the temperature control effect of the power supply under high-load conditions.

[0026] 3. In the present invention, by providing a locking mechanism, the user can quickly disassemble and install the active heat dissipation mechanism, making it convenient for the user to disassemble and maintain the active heat dissipation mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of the high-precision power supply body design and regulation technology based on digital control of the present invention;

[0028] Figure 2 This is a front view of the high-precision power supply body design and regulation technology based on digital control of the present invention;

[0029] Figure 3This is a schematic diagram of the active heat dissipation structure in the deployed state of the high-precision power supply body design and control technology based on digital control of the present invention;

[0030] Figure 4 This is a partial structural diagram of the high-precision power supply body design and regulation technology based on digital control of the present invention;

[0031] Figure 5 This is a schematic diagram of the internal structure of the high-precision power supply body design and regulation technology based on digital control of the present invention;

[0032] Figure 6 This is a schematic diagram of the deployment mechanism structure of the high-precision power supply body design and regulation technology based on digital control of the present invention;

[0033] Figure 7 This is a schematic diagram of the active heat dissipation mechanism structure of the high-precision power supply body design and regulation technology based on digital control of the present invention;

[0034] Figure 8 The present invention is based on the design and regulation technology of high-precision power supply based on digital control Figure 7 Schematic diagram of the structure at A in the middle;

[0035] Figure 9 This is a partial structural diagram of the active heat dissipation mechanism of the high-precision power supply body design and regulation technology based on digital control of the present invention;

[0036] Figure 10 This is a schematic diagram of the locking mechanism structure of the high-precision power supply body design and regulation technology based on digital control of the present invention;

[0037] Figure 11 This is a schematic cross-sectional view of the locking mechanism of the high-precision power supply body design and regulation technology based on digital control of the present invention;

[0038] Figure 12 The present invention is based on the design and regulation technology of high-precision power supply based on digital control Figure 11 Side view of;

[0039] Figure 13 This is a flow chart of the high-precision power supply design and regulation technology based on digital control of the present invention.

[0040] In the figure: 1. Housing; 2. Control panel; 3. Support legs; 4. Radiator grille; 5. Battery cell;

[0041] 6. Deployment mechanism; 61. Motor; 62. Positioning plate; 63. Connecting ring; 64. Internally threaded sleeve; 65. Ejector rod; 66. Guide frame; 67. Grating sensor; 68. Grating scale; 69. Slideway;

[0042] 7. Active heat dissipation mechanism; 71. Cover plate; 72. Air duct; 73. Bracket; 74. Cooling fan; 75. Isolation frame; 76. Partition; 77. Heat dissipation fins; 78. Power supply contact 1; 79. Power supply contact 2;

[0043] 8. Locking mechanism; 81. Latch; 82. Limiting frame; 83. Connecting plate; 84. Bayonet; 85. Spring; 86. Pressure column; 87. Extrusion frame; 88. Press block; 89. Restraining frame;

[0044] 9. Temperature sensor. DETAILED DESCRIPTION

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0046] refer to Figures 1-13 The high-precision power supply body design and control technology based on digital control shown in the figure includes a housing 1, a control panel 2 is installed in front of the housing 1, a battery cell 5 is installed on the inner wall of the housing 1, the battery cell 5 is electrically connected to the control panel 2, and an expansion mechanism 6 is provided on the inner wall of the housing 1;

[0047] The unfolding mechanism 6 includes a motor 61, which is fixedly connected to the inner wall of the housing 1. A connecting ring 63 is fixedly connected to the driving shaft of the motor 61. An internally threaded sleeve 64 is fixedly connected to the outer arc surface of the connecting ring 63. The inner wall of the internally threaded sleeve 64 is threadedly connected to a push rod 65. The inner wall of the housing 1 is fixedly connected to a guide frame 66. The push rod 65 is slidably connected to the inner wall of the guide frame 66. The inner wall of the guide frame 66 is fixedly connected to a grating sensor 67. The outer arc surface of the push rod 65 is provided with a groove. The push rod 65 is located on the inner wall of the groove and is fixedly connected to a grating ruler 68 adapted to the grating sensor 67.

[0048] An active heat dissipation mechanism 7 for cooling the battery cell 5 is provided on the upper surface of the top rod 65. A temperature sensor 9 for monitoring the temperature of the battery cell 5 is fixedly connected to the inner wall of the outer shell 1. The temperature of the battery cell 5 collected by the temperature sensor 9 is converted into a digital signal by ADC and input into the PID adjustment module of the digital controller together with the output signal of the current sensor. The controller optimizes the PWM duty cycle to ensure the output voltage accuracy while suppressing the increase in device loss caused by high temperature.

[0049] Among them, the lower surface of the shell 1 is fixedly connected to the support leg 3, and the left and right sides of the shell 1 are provided with a heat dissipation grille 4, which is connected to the interior of the shell 1. The heat dissipation grille 4 can be used to achieve autonomous heat dissipation of the device, and then the device can use its own integrated heat dissipation structure to dissipate heat in an environment where heat rises normally, thereby ensuring the safety of the power supply in a non-high-speed charging and discharging state.

[0050] Among them, the inner wall of the shell 1 is fixedly connected with a positioning plate 62, and the positioning plate 62 is fixedly connected to the upper surface of the motor 61. A sliding groove 69 is provided on the surface of the push rod 65, and the inner wall of the guide frame 66 is provided with a protrusion adapted to the sliding groove 69. The cooperation of the sliding groove 69 and the protrusion can guide the moving direction of the push rod 65, and avoid the push rod 65 from rotating synchronously with the internal threaded sleeve 64, which causes the push rod 65 to be unable to unfold normally, thereby ensuring the normal use of the push rod 65.

[0051] Among them, the motor 61 is electrically connected to the control panel 2, the grating sensor 67 is electrically connected to the control panel 2, and the internal threaded sleeve 64 is rotatably connected to the lower surface of the connecting ring 63. By utilizing the cooperation of the grating sensor 67 and the grating ruler 68, the moving distance of the push rod 65 can be detected, so that the push rod 65 can stop moving when the cover plate 71 is lifted to a specified height, thereby ensuring that the upper air outlet of the air duct 72 driven by the push rod 65 is aligned with the heat dissipation fins 77.

[0052] The active heat dissipation mechanism 7 includes a cover plate 71, which is mounted on the upper surface of the top rod 65. The lower surface of the cover plate 71 is fixedly connected to an air duct 72. The inner wall of the air duct 72 is fixedly connected to a bracket 73. The surface of the bracket 73 is fixedly connected to a cooling fan 74. The cooling fan 74 is powered directly by an auxiliary power module of the power supply, such as a 5V / 12V linear regulator. The PWM control signal of the drive motor 61 and the PWM signal of the main circuit share an on-board clock source to ensure that the heat dissipation intensity adjustment is synchronized with the power conversion rhythm. The inner wall of the air duct 72 is fixedly connected to an isolation frame 75, and the surface of the isolation frame 75 is fixedly connected to a partition 76.

[0053] The upper surface of the battery cell 5 is fixedly connected with a heat dissipation fin 77, the inner wall of the air duct 72 is fixedly connected with a power supply contact 1 78, and the inner wall of the shell 1 is fixedly connected with a power supply contact 2 79 adapted to the power supply contact 1 78. The heat dissipation fin 77 can be used to guide the heat generated by the battery cell 5, thereby improving the heat dissipation effect of the heat dissipation fan 74 on the battery cell 5, so as to enhance the temperature control of the battery cell 5 under high-speed charging and discharging conditions by the power supply.

[0054] Among them, there are two air ducts 72, and the two air ducts 72 are mirror-set with the transverse axis of the cover plate 71 as the mirror axis. The air duct 72 is located inside the shell 1. By utilizing the cooperation of the air duct 72 and the isolation frame 75, the airflow generated by the cooling fan 74 can be separated and guided, so that the airflow utilizes the upper and lower air outlets to cool different areas.

[0055] Among them, the partition 76 is fixedly connected to the inner wall of the air duct 72, the cooling fan 74 is electrically connected to the power supply contact 1 78, and the power supply contact 2 79 is electrically connected to the control panel 2. The partition 76 can be used to separate the upper flow channel isolated by the isolation frame 75 and the air duct 72, so that each cooling fan 74 can use a separate flow channel to guide the airflow through the upper air outlet, reducing mutual interference between the airflows.

[0056] Among them, the inner wall of the push rod 65 is provided with a locking mechanism 8, which includes a latch 81. The latch 81 is inserted into the inner wall of the push rod 65, and the latch 81 passes through the lower surface of the cover plate 71. The upper surface of the latch 81 is fixedly connected to the limit frame 82, and the limit frame 82 abuts against the upper surface of the cover plate 71. The upper surface of the latch 81 is provided with a mounting cavity. The latch 81 is located in the inner wall of the mounting cavity and is slidably connected to a connecting plate 83. The side surface of the connecting plate 83 is fixedly connected to a latch pin 84. The inner wall of the push rod 65 is provided with a card slot, and the latch pin 84 is plugged into the inner wall of the card slot.

[0057] The side of the connecting plate 83 away from the pin 84 is fixedly connected to a spring 85, and the spring 85 is fixedly connected to the inner wall of the installation cavity. The pin 81 is located on the inner wall of the installation cavity and is slidably connected to a pressure column 86. The lower surface of the pressure column 86 is fixedly connected to an extrusion frame 87, and the extrusion frame 87 abuts the upper surface of the connecting plate 83. The upper surface of the pressure column 86 is fixedly connected to a pressing block 88, and the pressing block 88 is slidably connected to the inner wall of the installation cavity. The pressing block 88 is slidably connected to the inner wall of the limit frame 82. The elasticity of the spring 85 can be used to limit the position of the connecting plate 83, so that the connecting plate 83 can limit the position of the pin 84 when no external force is applied, and ensure that the pin 84 can be stably inserted in the slot, thereby locking the position of the pin 81.

[0058] Among them, the surface of the pressure column 86 is fixedly connected to the constraint frame 89, and the constraint frame 89 is slidably connected to the inner wall of the installation cavity. The surface of the pin 84 is provided with a receiving groove adapted to the extrusion part of the extrusion frame 87. The upper surface of the connecting plate 83 is provided with a chamfer, and the lower surface of the extrusion frame 87 is provided with a chamfer. The constraint frame 89 can be used to limit the moving distance of the constraint frame 89 to ensure that the moving space of the pressure column 86 is located in the installation cavity.

[0059] The working principle of the present invention is as follows: when using a power supply for power supply, take out the connecting line, plug one end of the connecting line into the connector of the control panel 2, and plug the other end into the connector of the device to be powered. After the connection is completed, turn on the switch on the control panel 2. After the switch is turned on, the battery cell 5 is powered by the voltage stabilizing mainboard integrated on the control panel 2 and the connecting line to the device to be powered. At the same time, the remaining power of the battery cell 5 will be synchronously displayed on the display screen of the control panel 2. When the power supply is exhausted and needs to be charged, plug the charging line into the charging port of the control panel 2, and plug the charging head into the powered plug board. Then, under the power supply of the plug board, the battery cell 5 can be charged.

[0060] During the charging and discharging process of the battery cell 5, the temperature sensor 9 located in the housing 1 will monitor the temperature of the battery cell 5 in real time. When the detected temperature of the battery cell 5 reaches the set threshold value of ±2°C, the temperature sensor 9 cooperates with the control panel 2 to control the motor 61 to work. The motor 61 is energized to rotate the connecting ring 63, and the connecting ring 63 rotates the internal threaded sleeve 64. The internal threaded sleeve 64 engages with the push rod 65 through the thread. Under the action of the guide frame 66, the push rod 65 drives the grating ruler 68 to move upward and push the cover 71. The grating ruler 68 cooperates with the grating sensor 67 to control the movement of the push rod 65 during the movement. The distance is measured. When the moving distance of the ejector 65 reaches the designed spacing, the grating sensor 67 cooperates with the control panel 2 to turn off the motor 61. At the same time, the connecting ring 63 stops driving the internal threaded sleeve 64, the internal threaded sleeve 64 stops engaging with the ejector 65, the ejector 65 stops moving, and with the assistance of the internal threaded sleeve 64, the position of the unfolded cover 71 is locked. By setting the unfolding mechanism 6, the active heat dissipation mechanism 7 can be automatically opened when the power supply is under high load, so that the active heat dissipation mechanism 7 is unfolded and cooperates with the heat dissipation grille 4 to cool and dissipate the power supply under high load.

[0061] When the cover plate 71 moves, the cover plate 71 pulls the air duct 72 upward, and the air duct 72 drives the cooling fan 74 and the power supply contact 1 78 to move. The power supply contact 1 78 contacts the power supply contact 2 79 during the movement. After the power supply contact 1 78 and the power supply contact 2 79 are connected, the power supply contact 2 79 cooperates with the power supply contact 1 78 to power the cooling fan 74. The cooling fan 74 is powered on to blow air into the air duct 72. At the same time, the digital controller based on the power supply body is used to automatically reduce the output power by Y% every time the temperature rises by X°C, and the speed of the cooling fan 74 is increased proportionally; the air blown into the air duct 72 is discharged from the two air outlets of the air duct 72 under the guidance of the isolation frame 75. The airflow in the upper air outlet is blown to the heat dissipation fins 77 through the guidance of the independent channel under the action of the partition 76, and cooperates with the heat dissipation fins 77 to cool the battery cell 5. The airflow in the lower air outlet is directly blown to the battery cell 5 through the air duct 72 to cooperate with The heat dissipation fins 77 and the upper air outlet cool the battery cell 5; when the temperature sensor 9 detects that the temperature of the battery cell 5 drops to the safety threshold of ±2°C, the control panel 2 controls the motor 61 to work, and the motor 61 drives the connecting ring 63 in the reverse direction, so that the internal threaded sleeve 64 drives the push rod 65 to reset through the thread, and the push rod 65 pulls the cover plate 71 to reset during the reset, and the cover plate 71 is forced to push the air duct 72, and the air duct 72 pushes the cooling fan 74 and the power supply contact 1 78, and the power supply contact 1 78 moves away from the power supply contact 2 79 and stops supplying power to the cooling fan 74. The cooling fan 74 stops working and is retracted into the housing 1. By providing the active heat dissipation mechanism 7, the power supply can use the additional heat dissipation structure to cool its own high-temperature area under high load. At the same time, the openable shielding structure can increase the contact area between the internal structure of the power supply and the external air, effectively improving the temperature control effect of the power supply under high load.

[0062] When the user needs to disassemble and maintain the active heat dissipation mechanism 7, he hooks the constraint frame 89 with his fingers and pushes the pressing block 88 downward at the same time. The pressing block 88 cooperates with the pressure column 86 to push the extrusion frame 87. The extrusion frame 87 pushes the connecting plate 83 under the action of the extrusion part. The connecting plate 83 squeezes the spring 85. The spring 85 is squeezed and deformed. The connecting plate 83 pulls the latch 84 while moving, and the latch 84 is disengaged from the slot. When the user can no longer push the pressing block 88 downward, the latch 84 is completely disengaged from the slot. Then, while keeping the pressing block 88 pressed, the user pulls the constraint frame 89 upward. The frame 89 and the restraining frame 89 pull the latch 81, which is gradually separated from the top rod 65 under the operation of the user, and then the latches 81 are removed one by one according to the above steps. After all the latches 81 are removed, the cover 71 is pulled upward, and the cover 71 can cooperate with the air duct 72 to bring the cooling fan 74 and other results out of the housing 1. When the active cooling mechanism 7 is completely taken out, the active cooling mechanism 7 can be disassembled and maintained. By setting the locking mechanism 8, the user can quickly disassemble and install the active cooling mechanism 7, which is convenient for the user to disassemble and maintain the active cooling mechanism 7.

[0063] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device that performs control such as a computer.

[0064] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-precision power supply body design based on digital control, including a housing (1), characterized in that: A control panel (2) is installed in front of the housing (1), a battery core (5) is installed on the inner wall of the housing (1), the battery core (5) is electrically connected to the control panel (2), and an expansion mechanism (6) is provided on the inner wall of the housing (1); The unfolding mechanism (6) comprises a motor (61), the motor (61) is fixedly connected to the inner wall of the housing (1), a connecting ring (63) is fixedly connected to the driving shaft of the motor (61), the outer arc surface of the connecting ring (63) is fixedly connected to the internal thread sleeve (64), the inner wall of the internal thread sleeve (64) is threadedly connected to a push rod (65), the inner wall of the housing (1) is fixedly connected to a guide frame (66), the push rod (65) is slidably connected to the inner wall of the guide frame (66), the inner wall of the guide frame (66) is fixedly connected to a grating sensor (67), the outer arc surface of the push rod (65) is provided with a groove, and the push rod (65) is fixedly connected to the inner wall of the groove with a grating ruler (68) adapted to the grating sensor (67); An active heat dissipation mechanism (7) for cooling the battery core (5) is provided on the upper surface of the top rod (65), and a temperature sensor (9) for monitoring the temperature of the battery core (5) is fixedly connected to the inner wall of the housing (1).

2. The high-precision power supply design based on digital control according to claim 1 is characterized in that: The lower surface of the housing (1) is fixedly connected to a support leg (3), and both left and right sides of the housing (1) are provided with a heat dissipation grille (4), which is in communication with the interior of the housing (1).

3. The high-precision power supply design based on digital control according to claim 1 is characterized in that: A positioning plate (62) is fixedly connected to the inner wall of the housing (1), and the positioning plate (62) is fixedly connected to the upper surface of the motor (61). A sliding groove (69) is provided on the surface of the push rod (65), and a protrusion adapted to the sliding groove (69) is provided on the inner wall of the guide frame (66).

4. The high-precision power supply design based on digital control according to claim 1 is characterized in that: The motor (61) is electrically connected to the control panel (2), the grating sensor (67) is electrically connected to the control panel (2), and the internal threaded sleeve (64) is rotatably connected to the lower surface of the connecting ring (63).

5. The high-precision power supply design based on digital control according to claim 1 is characterized in that: The active heat dissipation mechanism (7) comprises a cover plate (71), the cover plate (71) is mounted on the upper surface of the top rod (65), the lower surface of the cover plate (71) is fixedly connected to an air duct (72), the inner wall of the air duct (72) is fixedly connected to a bracket (73), the surface of the bracket (73) is fixedly connected to a heat dissipation fan (74), the inner wall of the air duct (72) is fixedly connected to an isolation frame (75), and the surface of the isolation frame (75) is fixedly connected to a partition (76); The upper surface of the battery core (5) is fixedly connected to a heat dissipation fin (77), the inner wall of the air duct (72) is fixedly connected to a first power supply contact (78), and the inner wall of the housing (1) is fixedly connected to a second power supply contact (79) adapted to the first power supply contact (78).

6. The high-precision power supply body design based on digital control according to claim 5 is characterized in that: There are two air ducts (72), and the two air ducts (72) are arranged in a mirror image with the transverse axis of the cover plate (71) as the mirror axis. The air ducts (72) are located inside the housing (1).

7. The high-precision power supply body design based on digital control according to claim 5 is characterized in that: The partition (76) is fixedly connected to the inner wall of the air duct (72), the cooling fan (74) is electrically connected to the first power supply contact (78), and the second power supply contact (79) is electrically connected to the control panel (2).

8. The high-precision power supply design based on digital control according to claim 1 is characterized in that: The inner wall of the push rod (65) is provided with a locking mechanism (8), and the locking mechanism (8) includes a latch (81), the latch (81) is inserted into the inner wall of the push rod (65), the latch (81) passes through the lower surface of the cover plate (71), the upper surface of the latch (81) is fixedly connected to a limiting frame (82), the limiting frame (82) abuts against the upper surface of the cover plate (71), the upper surface of the latch (81) is provided with a mounting cavity, the latch (81) is located on the inner wall of the mounting cavity and is slidably connected to a connecting plate (83), the side surface of the connecting plate (83) is fixedly connected to a bayonet (84), the inner wall of the push rod (65) is provided with a card slot, and the bayonet (84) is plugged into the inner wall of the card slot; The connecting plate (83) is fixedly connected to a spring (85) on one side away from the latch (84), and the spring (85) is fixedly connected to the inner wall of the installation cavity. The latch (81) is located on the inner wall of the installation cavity and is slidably connected to a pressure column (86). The lower surface of the pressure column (86) is fixedly connected to an extrusion frame (87), and the extrusion frame (87) abuts against the upper surface of the connecting plate (83). The upper surface of the pressure column (86) is fixedly connected to a pressing block (88), and the pressing block (88) is slidably connected to the inner wall of the installation cavity. The pressing block (88) is slidably connected to the inner wall of the limiting frame (82).

9. The high-precision power supply design based on digital control according to claim 8 is characterized in that: The surface of the pressure column (86) is fixedly connected to a restraining frame (89), and the restraining frame (89) is slidably connected to the inner wall of the installation cavity. The surface of the latch (84) is provided with a receiving groove adapted to the extrusion portion of the extrusion frame (87). The upper surface of the connecting plate (83) is provided with a chamfer, and the lower surface of the extrusion frame (87) is provided with a chamfer.

10. A control technology based on the high-precision power supply design based on digital control as claimed in any one of claims 1 to 9, characterized in that: S1. When using the power supply, take out the connecting wire, plug one end of the connecting wire into the connector of the control panel (2), and plug the other end into the connector of the device to be powered. After completing the connection, turn on the switch on the control panel (2). After the switch is turned on, the battery cell (5) supplies power to the device to be powered through the voltage stabilizing mainboard integrated on the control panel (2) and the connecting wire, and the remaining power of the battery cell (5) is synchronously displayed on the display screen of the control panel (2); when the power supply is exhausted and charging is required, plug the charging wire into the charging port of the control panel (2), and plug the charging head into the powered plug board, and then the battery cell (5) can be charged under the power supply of the plug board; S2. During the charging and discharging process of the battery cell (5), the temperature sensor (9) located in the housing (1) monitors the temperature of the battery cell (5) in real time. When the detected temperature of the battery cell (5) reaches the set threshold value ±2°C, the temperature sensor (9) cooperates with the control panel (2) to control the motor (61) to work. The motor (61) is energized to rotate the connecting ring (63). The connecting ring (63) rotates the internal threaded sleeve (64). The internal threaded sleeve (64) engages with the push rod (65) through the thread. Under the action of the guide frame (66), the push rod (65) drives the grating ruler (68) to move upward. The cover plate (71) is moved and pushed. The grating ruler (68) cooperates with the grating sensor (67) to measure the moving distance of the push rod (65) during the movement. When the moving distance of the push rod (65) reaches the designed spacing, the grating sensor (67) cooperates with the control panel (2) to turn off the motor (61). At the same time, the connecting ring (63) stops driving the internal threaded sleeve (64). The internal threaded sleeve (64) stops engaging with the push rod (65). The push rod (65) stops moving and, with the assistance of the internal threaded sleeve (64), the position of the unfolded cover plate (71) is locked. S3. When the cover plate (71) moves, the cover plate (71) pulls the air duct (72) upward, and the air duct (72) drives the cooling fan (74) and the power supply contact 1 (78) to move. The power supply contact 1 (78) contacts the power supply contact 2 (79) during the movement. After the power supply contact 1 (78) and the power supply contact 2 (79) are connected, the power supply contact 2 (79) cooperates with the power supply contact 1 (78) to supply power to the cooling fan (74). The cooling fan (74) is powered on to blow air into the air duct (72). At the same time, the digital controller based on the power supply body is used to automatically reduce the output power by Y% every time the temperature rises by X°C, and increase the speed of the cooling fan (74) proportionally. The air blown into the air duct (72) is discharged from the two air outlets of the air duct (72) under the guidance of the isolation frame (75). The airflow in the upper air outlet is blown toward the heat dissipation fins (77) through the guidance of the independent channel under the action of the partition (76), and cooperates with the heat dissipation fins (77) to cool the battery cell (5). The airflow in the lower air outlet is directly blown toward the battery cell (5) through the air duct (72), so as to cooperate with the heat dissipation fins (77) and the upper air outlet to cool the battery cell (5); When the temperature sensor (9) detects that the temperature of the battery cell (5) drops to a safety threshold of ±2°C, the control panel (2) controls the motor (61) to operate, and the motor (61) drives the connecting ring (63) in reverse, so that the internal threaded sleeve (64) drives the push rod (65) to reset through the thread, and the push rod (65) pulls the cover plate (71) to reset during the reset, and the cover plate (71) is forced to push the air duct (72), and the air duct (72) pushes the cooling fan (74) and the power supply contact 1 (78), and the power supply contact 1 (78) moves away from the power supply contact 2 (79), and stops supplying power to the cooling fan (74), and the cooling fan (74) stops working and is received into the housing (1).

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