Low-power-consumption high-power digital alternating-current voltage-stabilized power supply device

Abstract

The invention discloses a low-power-consumption high-power digital alternating-current voltage-stabilized power supply device, and belongs to the field of alternating-current power supplies. The invention relates to a low-power-consumption high-power digital alternating-current voltage-stabilized power supply device, which comprises a box body and a control module arranged in the box body, a plurality of connector assemblies are arranged at the front end of the box body; the connector assembly comprises an electric connector inserted in the box body in a sliding mode, a separation spring driving the electric connector to be separated from the box body, and a clamping plate longitudinally sliding in the box body and limiting movement of the electric connector. A circuit breaker is mounted in the box body; the circuit breaker is rotationally connected with a toggle switch; the toggle switch is in transmission connection with each clamping plate; when the circuit breaker detects that the circuit is disconnected, the toggle switch rotates reversely, and the toggle switch enables the clamping plate to be separated from the electric connector. Potential safety hazards are reduced, and property loss is reduced.

Description

Technical Field

[0001] The invention belongs to the field of AC power supply, and more specifically, relates to a low-power and high-power digital AC voltage-stabilized power supply device. Background Art

[0002] An AC regulated power supply is an electronic device that can provide stable AC or DC power to a load. It can supply power to a load for a long time by plugging an external cable into the device. When a fire occurs outside, the external flame may spread along the external cable to the inside of the power supply, causing the power supply to burn. Or when a fire occurs inside the power supply, the internal flame may spread along the external cable to the load, causing the load to catch fire. This can create safety hazards. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a low-power, high-power digital AC voltage-stabilized power supply device, which can separate the external wiring from the power supply after a flame causes a short circuit.

[0004] A low-power, high-power digital AC regulated power supply device of the present invention comprises a box body and a control module arranged in the box body; a plurality of connector assemblies are arranged at the front end of the box body; the connector assembly comprises an electric connector slidably plugged into the box body, a disengagement spring driving the electric connector to disengage from the box body, and a card plate longitudinally sliding in the box body to limit the movement of the electric connector.

[0005] A circuit breaker is installed in the box; a toggle switch is rotatably connected to the circuit breaker; the toggle switch is transmission-connected to each card plate; when the circuit breaker detects that the circuit is broken, the toggle switch rotates in the opposite direction, and the toggle switch separates the card plate from the electrical connector.

[0006] As a further improvement of the present invention, a turntable is rotatably connected in the box; the turntable is unidirectionally connected to the toggle switch; when the turntable rotates forward, the turntable drives the toggle switch to rotate forward, and the circuit breaker resumes operation.

[0007] As a further improvement of the present invention, the toggle switch is coaxially provided with a switch ratchet; a rack connected to the turntable for transmission is slidably connected in the box body; switch ratchets connected to the switch ratchet for unidirectional transmission are evenly arranged on one side of the rack; when the rack moves to the positive limit position, the toggle switch moves to the positive limit position, and the switch ratchet is separated from the switch ratchet.

[0008] As a further improvement of the present invention, a disengagement frame for driving the movement of each card plate is slidably connected in the box body; a disengagement protrusion is provided on the disengagement frame; and a limiting protrusion is provided at an eccentric position on the toggle switch, which can resist the disengagement protrusion and thus prevent the movement of the disengagement frame.

[0009] As a further improvement of the present invention, a driving frame is slidably connected to the box body; the sliding direction of the driving frame is perpendicular to the sliding direction of the disengagement frame; the disengagement frame is provided with a reset slide groove parallel to the sliding direction of the driving frame and an arc-shaped disengagement slide groove; the two ends of the disengagement slide groove are respectively connected with the reset slide groove, and the two connected positions are respectively a starting position and an end position; the driving frame is provided with a sliding column sliding between the reset slide groove and the disengagement slide groove; a guide plate is rotatably connected in the reset slide groove to enable the sliding column to pass through the starting position and enter the disengagement slide groove; a driving spring is provided between the driving frame and the box body to drive the sliding column to move from the starting position to the end position.

[0010] As a further improvement of the present invention, a plurality of reset ratchets are evenly arranged on the driving frame along the sliding direction of the driving frame; a plurality of reset pawls are circumferentially arranged on the turntable and are connected to the reset ratchets in a one-way transmission manner; when the turntable rotates forward, the reset pawls drive the reset ratchets to move, and the sliding column moves to the starting position.

[0011] As a further improvement of the present invention, the connector assembly also includes a connecting column driven by an electric connector sliding in the box body; a plurality of feed ratchets are circumferentially arranged on the outer wall of the turntable; a plurality of feed pawls are arranged on each of the connecting columns and are connected to the feed ratchets in a one-way transmission manner; when each electric connector is respectively inserted into the box body, each feed pawl drives the turntable to rotate forward by a certain angle; a turntable torsion spring is arranged between the turntable and the box body to drive the turntable to rotate in the opposite direction.

[0012] As a further improvement of the present invention, a display screen and a plurality of knobs are provided at the front end of the box; a handle is provided at the upper end of the box; and heat dissipation holes are provided on the side walls of the box.

[0013] As a further improvement of the present invention, the control module includes an ARM processor and a DSP chip; the ARM processor and the DSP chip are electrically connected to each other; the input end of the DSP chip is connected to a voltage and current transformer, a low-pass filter and an AD analog-to-digital conversion unit in sequence; the electrical connector installed in the box is electrically connected to the control module.

[0014] Compared with the prior art, the beneficial effect of the present invention is that: the present solution uses the elastic force of the release spring to enable the electrical connector to quickly detach from the box body after a fire occurs in the device and a short circuit occurs. This prevents the external fire from spreading to the box body along the external connector, or prevents the fire in the box from spreading to the electrical equipment through the external connector. This reduces safety hazards and property losses. Furthermore, if the device is not affected after the fire, the device can continue to be used after the electrical connector is re-inserted into the box body.

[0015] This solution uses the circuit breaker to monitor whether the device is short-circuited, and after the short circuit, the circuit breaker's own tripping phenomenon is used to turn the switch in the opposite direction, so that the detachment frame drives each card plate to no longer be plugged into the card slot, and then each electrical connector is detached from the box. No additional power source is required to drive the electrical connector to detach from the box. The entire process is a mechanical mechanism, avoiding secondary fire caused by the use of an additional power source that consumes electricity.

[0016] In this solution, the turntable drives the toggle switch to rotate forward through the rotation of the turntable, thereby reconnecting the circuit breaker without the need for additional personnel operation. At the same time, the turntable can also move the sliding column from the end position to the starting position to prepare for the next sliding of the drive frame.

[0017] In the process of reinserting each electrical connector into the box, each electrical connector can also drive the turntable to rotate a certain angle respectively. By accumulating multiple electrical connectors, the rotation angle of the turntable is increased, and the resistance evenly distributed to each electrical connector is smaller, which will not cause major obstacles to the process of inserting the electrical connectors into the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a cross-sectional structural schematic diagram of the present invention;

[0020] Figure 3 It is a schematic diagram of the exploded structure of the connector assembly of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the limiting protrusion of the present invention preventing the disengagement frame from sliding;

[0022] Figure 5 It is a schematic diagram of the structure of the rack of the present invention when it is located at the reverse limit position;

[0023] Figure 6 It is a schematic diagram of the structure of the rack of the present invention when it is located at the positive limit position;

[0024] Figure 7 It is a schematic diagram of the structure when the limiting protrusion and the disengagement protrusion of the present invention are separated;

[0025] Figure 8 It is a schematic diagram of the exploded structure of the driving frame and the disengaging frame of the present invention;

[0026] Fig. 9 It is a structural schematic diagram of the sliding column of the present invention being located at the starting position.

[0027] Description of the numbers in the figure:

[0028] 1. Box; 11. Display screen; 12. Knob; 13. Handle; 14. Heat dissipation hole; 2. Connector assembly; 21. Electrical connector; 211. Card slot; 22. Disengagement spring; 23. Card plate; 231. Lifting ramp; 24. Pressing spring; 25. Connecting column; 251. Feeding pawl; 3. Circuit breaker; 31. Toggle switch; 32. Limiting protrusion; 33. Switch ratchet; 4. Rack; 411. Switch pawl; 5 , turntable; 51, end gear; 52, feed ratchet; 53, reset pawl; 6, disengagement frame; 61, driving inclined plane; 62, disengagement protrusion; 63, reset slide; 64, disengagement slide; 65, guide plate; 66, check plate; 67, starting position; 68, end position; 7, driving frame; 71, slide column; 72, reset ratchet; 73, driving spring; 81, first gear; 82, second gear; 83, synchronous belt. DETAILED DESCRIPTION

[0029] Specific embodiment 1: Please refer to Figure 1-Figure 9 A low-power, high-power digital AC regulated power supply device comprises a box body 1 and a control module arranged in the box body 1; a plurality of connector assemblies 2 are arranged at the front end of the box body 1; the connector assembly 2 comprises an electric connector 21 slidably plugged into the box body 1, a disengagement spring 22 driving the electric connector 21 to disengage from the box body 1, and a card plate 23 longitudinally sliding in the box body 1 to limit the movement of the electric connector 21.

[0030] The front end of the box body 1 is provided with a connector groove for accommodating the electric connector 21; one end of the disengagement spring 22 is fixed to the electric connector 21, and the other end is against the bottom of the connector groove; the outer wall of the electric connector 21 is circumferentially provided with a slot 211 that can be engaged with the card plate 23; when the slot 211 is engaged with the card plate 23, the disengagement spring 22 is compressed. At this time, if the card plate 23 moves, so that the slot 211 is separated from the card plate 23, the elastic force of the disengagement spring 22 causes the electric connector 21 to quickly detach from the box body 1.

[0031] A circuit breaker 3 is installed in the box 1; a toggle switch 31 is rotatably connected to the circuit breaker 3; the toggle switch 31 is transmission-connected to each card plate 23; when the circuit breaker 3 detects that the circuit is broken, the circuit breaker 3 trips, the toggle switch 31 rotates in the opposite direction, and the toggle switch 31 separates the card plate 23 from the electrical connector 21.

[0032] A turntable 5 is rotatably connected in the box body 1; the turntable 5 is unidirectionally connected to the toggle switch 31; when the turntable 5 rotates forward, the turntable 5 drives the toggle switch 31 to rotate forward, and the circuit breaker 3 resumes operation.

[0033] The toggle switch 31 is coaxially provided with a switch ratchet 33; a rack 4 connected to the rotary disk 5 is slidably connected in the housing 1; switch ratchets 411 connected to the switch ratchet 33 in a unidirectional manner are evenly arranged on one side of the rack 4; when the rack 4 moves forward, the switch ratchet 411 abuts against the switch ratchet 33 and drives the switch ratchet 33 to rotate forward, thereby rotating the toggle switch 31 forward; when the rack 4 moves to the forward limit position, the toggle switch 31 moves to the forward limit position, and the circuit breaker 3 resumes working. At this time, the switch ratchet 411 is separated from the switch ratchet 33, and the switch ratchet 411 does not hinder the reverse rotation of the toggle switch 31.

[0034] The turntable 5 is coaxially provided with an end gear 51 ; a first gear 81 meshing with the rack 4 and a second gear 82 meshing with the end gear 51 are rotatably connected in the housing 1 ; the first gear 81 and the second gear 82 are connected via a synchronous belt 83 .

[0035] A disengagement frame 6 for driving each card plate 23 to move is slidably connected in the box body 1; a disengagement protrusion 62 is provided on the disengagement frame 6; and a limit protrusion 32 is provided at an eccentric position on the toggle switch 31 to abut against the disengagement protrusion 62 and thus prevent the disengagement frame 6 from moving.

[0036] The lower end of the card plate 23 is provided with an inclined lifting slope 231; the position of the disengagement frame 6 is provided with a driving slope 61 corresponding to each lifting slope 231; a downward pressure spring 24 for driving the card plate 23 to be inserted into the card slot 211 is provided between the card plate 23 and the box body 1.

[0037] The sliding direction of the disengagement frame 6 is parallel to the axial direction of the toggle switch 31 , so when the limiting protrusion 32 abuts against the disengagement protrusion 62 , the disengagement frame 6 cannot slide toward the card plate 23 , and the card plate 23 will not be separated from the card slot 211 .

[0038] A driving frame 7 is slidably connected inside the box body 1; the sliding direction of the driving frame 7 is perpendicular to the sliding direction of the disengaging frame 6; the disengaging frame 6 is provided with a reset slide 63 parallel to the sliding direction of the driving frame 7 and an arc-shaped disengaging slide 64; the two ends of the disengaging slide 64 are respectively connected to the reset slide 63, and the two connected positions are respectively a starting position 67 and an ending position 68; the driving frame 7 is provided with a slide post 71 that slides between the reset slide 63 and the disengaging slide 64; a guide plate 65 is rotatably connected inside the reset slide 63 to enable the slide post 71 to pass through the starting position 67 and enter the disengaging slide 64; a driving spring 73 is provided between the driving frame 7 and the box body to drive the slide post 71 to move from the starting position 67 to the ending position 68.

[0039] A non-return plate 66 is rotatably connected in the disengagement slot 64 to prevent the slide post 71 in the end position 68 from entering the disengagement slot 64; a non-return torsion spring for resetting is arranged between the non-return plate 66 and the disengagement frame 6; a guide torsion spring for resetting is arranged between the guide plate 65 and the disengagement frame 6.

[0040] At the beginning, the card plate 23 is plugged into the card slot 211 , the slide post 71 is located in the starting position 67 , the disengagement protrusion 62 abuts against the limiting protrusion 32 , and the disengagement frame 6 cannot move toward the card plate 23 .

[0041] When the disengagement protrusion 62 is separated from the limiting protrusion 32, the drive frame 7 slides, and the slide post 71 enters the disengagement slide slot 64 from the starting position 67 along the guide plate 65. During this process, the slide post 71 drives the disengagement frame 6 to slide toward the card plate 23 through the disengagement slide slot 64, and then the disengagement frame 6 separates the card plate 23 from the card slot 211. Then the slide post 71 continues to move along the disengagement slide slot 64 to the end position 68, and the slide post 71 drives the disengagement frame 6 to move away from the card plate 23. Then, when the slide post 71 slides in the disengagement slide slot 64, the slide post 71 drives the disengagement frame 6 to reciprocate for one cycle.

[0042] A plurality of reset ratchets 72 are evenly arranged on the driving frame 7 along the sliding direction of the driving frame 7; a plurality of reset pawls 53 are circumferentially arranged on the turntable 5 and are unidirectionally connected to the reset ratchets 72; when the turntable 5 rotates forward, the reset pawls 53 drive the reset ratchets 72 to move, and the sliding column 71 moves to the starting position 67.

[0043] When the turntable 5 rotates to the positive limit position, the slide post 71 moves to the starting position 67, and the reset pawl 53 is separated from the reset ratchet 72, so that the reset pawl 53 will not prevent the reset ratchet 72 from moving.

[0044] The connector assembly 2 also includes a connecting column 25 driven by an electric connector 21 that slides in the housing 1; a plurality of feed ratchets 52 are circumferentially arranged on the outer wall of the turntable 5; each of the connecting columns 25 is provided with a plurality of feed pawls 251 that are unidirectionally connected to the feed ratchets 52; when each of the electric connectors 21 is respectively inserted into the housing 1, each of the feed pawls 251 drives the turntable 5 to rotate forward by a certain angle; a turntable torsion spring that drives the turntable 5 to rotate in the reverse direction is arranged between the turntable 5 and the housing 1.

[0045] When the electrical connector 21 is separated from the box body 1 , the connecting column 25 is located close to the clamping plate 23 . At this time, the feeding pawl 251 is not in contact with the feeding ratchet 52 , and the rotary disk 5 will rotate to the reverse limit position.

[0046] The front end of the box body 1 is provided with a display screen 11 and a plurality of knobs 12 ; the upper end of the box body 1 is provided with a handle 13 ; and the side wall of the box body 1 is provided with heat dissipation holes 14 .

[0047] The control module includes an ARM processor and a DSP chip; the ARM processor and the DSP chip are electrically connected to each other; the input end of the DSP chip is connected to a voltage and current transformer, a low-pass filter and an AD analog-to-digital conversion unit in sequence; the electrical connector 21 installed in the box 1 is electrically connected to the control module.

[0048] Each connection column 25 is electrically connected to the control module through a wire; the electrical connector 21 inserted into the box body 1 contacts and electrically connects to the connection column 25. The front end of the electrical connector 21 is provided with an electrical socket; the external device is plugged into the electrical socket through the plug on the external cable to supply power to the external device.

[0049] In the initial state, each electrical connector 21 is plugged into the box 1, the toggle switch 31 is at the positive limit position, and the circuit breaker 3 is connected. The rack 4 is at the positive limit position, the switch pawl 411 is separated from the switch ratchet 33, each connecting column 25 is at a position away from the clamping plate 23, the feed pawl 251 is against the feed ratchet 52, and the turntable 5 can no longer rotate in the reverse direction under the action of the turntable torsion spring. The slide column 71 is at the starting position 67.

[0050] During normal operation, the plug of the external connection is plugged into the electrical connector 21, thereby supplying power to the external electrical equipment. The output voltage is adjusted by turning the knob 12.

[0051] When a fire occurs at any position, each circuit will be short-circuited, and the circuit breaker 3 will trip, causing the toggle switch 31 to quickly rotate in the reverse direction to the extreme position.

[0052] As the toggle switch 31 rotates in the opposite direction, the limit protrusion 32 separates from the disengagement protrusion 62, and the limit protrusion 32 no longer prevents the movement of the disengagement frame 6. Then, the slide column 71 will enter the disengagement slide groove 64 from the starting position 67 along the guide plate 65 under the action of the driving spring 73, and finally the slide column 71 moves to the end position 68 through the check plate 66. In this process, the slide column 71 forces the disengagement frame 6 to slide back and forth for a cycle.

[0053] During the reciprocating sliding of the disengagement frame 6, the disengagement frame 6 first slides toward the card plate 23, and the driving inclined surface 61 pushes each card plate 23 to slide upward, and then the card plate 23 is separated from the card slot 211, and all the electrical connectors 21 will quickly leave the box body 1 under the action of the disengagement spring 22, and the electrical connector 21 synchronously drives the external wire connected to the electrical connector 21 to move. Then the disengagement frame 6 moves in the direction away from the card plate 23, and then the disengagement frame 6 returns to the original position, and the limiting protrusion 32 is opposite to the disengagement protrusion 62, and at this time the limiting protrusion 32 can move to abut against the disengagement protrusion 62.

[0054] As each electrical connector 21 detaches from the box body 1, the turntable 5 will rotate in the opposite direction under the action of the turntable torsion spring, and each connecting column 25 will move toward the card plate 23 under the push of the feed ratchet 52 on the turntable 5. Finally, the connecting column 25 moves to a position close to the card plate 23, and the feed ratchet 52 does not contact the feed pawl 251.

[0055] At the same time, as the turntable 5 rotates in the opposite direction, the turntable 5 drives the rack 4 to move in the opposite direction to the extreme position through the end gear 51, the second gear 82, the synchronous belt 83, and the first gear 81 in sequence, and the examiner ratchet 411 on the rack 4 moves to abut against the switch ratchet 33.

[0056] After the operator extinguishes the fire, if the interior of the box 1 is not damaged, the device can be used normally, and then the electrical connector 21 is restored.

[0057] The operator re-inserts the electrical connectors 21 into the housing 1 one by one, and the order of insertion is arbitrary. In the process of inserting each electrical connector 21 into the housing 1, the electrical connector 21 abuts against the corresponding connecting column 25, and drives the connecting column 25 to move in the direction away from the card plate 23. The feed pawl 251 on the connecting column 25 will contact the feed ratchet 52, and push the turntable 5 to rotate forward through the feed ratchet 52. At the same time, when the electrical connector 21 is inserted into the housing 1, the outer wall of the electrical connector 21 first pushes the card plate 23 to move upward, until the card slot 211 is directly opposite to the card plate 23, and the card plate 23 is re-inserted with the card slot 211, and then the electrical connector 21 is re-fixed on the housing 1, and the turntable 5 rotates forward by a certain angle. When each electrical plug 21 is reinserted into the housing 1, it will drive the turntable 5 to rotate forward by a certain angle. When all electrical plugs 21 are fully reinserted, the turntable 5 rotates to the forward limit position.

[0058] During the forward rotation of the rotating disk 5, the rotating disk 5 drives the rack 4 to slide forward, the switch pawl 411 on the rack 4 abuts against the switch ratchet 33, and synchronously drives the toggle switch 21 to rotate forward, and at the same time, the limit protrusion 32 rotates again to abut against the disengagement protrusion 62, and the limit protrusion 32 limits the sliding of the disengagement frame 6. Finally, the rack 4 moves to the forward limit position, the toggle switch 31 moves to the forward limit position, the circuit breaker 3 is connected, the device resumes working, and the switch pawl 411 no longer abuts against the switch ratchet 33.

[0059] At the same time, during the forward rotation of the turntable 5, the reset pawl 53 on the turntable 5 abuts against the reset ratchet 72 and pushes the drive frame 7 to move, and the slide post 71 moves from the end position 68 to the start position 67 through the reset slide groove 63. Since the reset slide groove 63 is parallel to the sliding direction of the drive frame 7, the detachment frame 6 will not move. With the movement of the drive frame 7, the slide post 71 will abut against the guide plate 65 and force the guide plate 65 to rotate in the direction of the detachment slide groove 64, so that the slide post 71 smoothly passes through the guide plate 65 and returns to the start position 67. When the slide post 71 returns to the start position 67, the guide plate 65 rotates in the direction away from the detachment slide groove 64 to reset. And when the turntable 5 rotates to the forward limit position, the reset pawl 53 no longer contacts the reset ratchet 72, that is, the reset pawl 53 will not prevent the slide post 71 from sliding to the end position 68.

[0060] This restores to the initial state.

Claims

1. A low-power, high-power digital AC regulated power supply device, characterized in that: The invention comprises a box (1) and a control module arranged in the box (1); a plurality of connector assemblies (2) are arranged at the front end of the box (1); the connector assembly (2) comprises an electric connector (21) slidably plugged into the box (1), a disengagement spring (22) for driving the electric connector (21) to disengage from the box (1), and a clamping plate (23) for longitudinally sliding in the box (1) and limiting the movement of the electric connector (21); A circuit breaker (3) is installed in the box (1); a toggle switch (31) is rotatably connected to the circuit breaker (3); the toggle switch (31) is transmission-connected to each card plate (23); when the circuit breaker (3) detects that the circuit is broken, the toggle switch (31) rotates in the opposite direction, and the toggle switch (31) separates the card plate (23) from the electrical connector (21).

2. A low-power, high-power digital AC regulated power supply device according to claim 1, characterized in that: A rotating disk (5) is rotatably connected inside the housing (1); the rotating disk (5) is unidirectionally connected to the toggle switch (31); when the rotating disk (5) rotates in the forward direction, the rotating disk (5) drives the toggle switch (31) to rotate in the forward direction, and the circuit breaker (3) resumes operation.

3. A low-power, high-power digital AC regulated power supply device according to claim 2, characterized in that: The toggle switch (31) is coaxially provided with a switch ratchet (33); a rack (4) drivingly connected to the rotating disk (5) is slidably connected in the housing (1); switch ratchets (411) unidirectionally connected to the switch ratchet (33) are evenly arranged on one side of the rack (4); when the rack (4) moves to a positive limit position, the toggle switch (31) moves to a positive limit position, and at this time, the switch ratchet (411) is separated from the switch ratchet (33).

4. A low-power, high-power digital AC regulated power supply device according to claim 2, characterized in that: A disengagement frame (6) for driving each card plate (23) to move is slidably connected in the box body (1); a disengagement protrusion (62) is provided on the disengagement frame (6); and a limit protrusion (32) is provided at an eccentric position on the toggle switch (31) and is capable of abutting against the disengagement protrusion (62) and thereby preventing the disengagement frame (6) from moving.

5. A low-power, high-power digital AC regulated power supply device according to claim 4, characterized in that: A driving frame (7) is slidably connected in the housing (1); the sliding direction of the driving frame (7) is perpendicular to the sliding direction of the disengaging frame (6); a reset slide groove (63) and an arc-shaped disengaging slide groove (64) are provided on the disengaging frame (6); both ends of the disengaging slide groove (64) are respectively connected to the reset slide groove (63), and the two connected positions are a starting position (67) and an end position (68); a slide column (71) is provided on the driving frame (7) and slides between the reset slide groove (63) and the disengaging slide groove (64); a guide plate (65) is rotatably connected in the reset slide groove (63) and allows the slide column (71) to pass through the starting position (67) and enter the disengaging slide groove (64); a driving spring (73) is provided between the driving frame (7) and the housing and drives the slide column (71) to move from the starting position (67) to the end position (68).

6. A low-power, high-power digital AC regulated power supply device according to claim 5, characterized in that: A plurality of reset ratchets (72) are evenly arranged on the drive frame (7) along the sliding direction of the drive frame (7); a plurality of reset pawls (53) are circumferentially arranged on the turntable (5) and are unidirectionally connected to the reset ratchets (72); when the turntable (5) rotates in the forward direction, the reset pawls (53) drive the reset ratchets (72) to move, and the slide column (71) moves toward the starting position (67).

7. A low-power, high-power digital AC regulated power supply device according to claim 2, characterized in that: The connector assembly (2) further comprises a connecting column (25) driven by an electric connector (21) and sliding in the housing (1); a plurality of feed ratchets (52) are arranged on the outer wall of the turntable (5) along the circumferential direction; each of the connecting columns (25) is provided with a plurality of feed pawls (251) connected to the feed ratchets (52) in a one-way transmission manner; when each of the electric connectors (21) is respectively inserted into the housing (1), each of the feed pawls (251) drives the turntable (5) to rotate forwardly by a certain angle; and a turntable torsion spring is arranged between the turntable (5) and the housing (1) for driving the turntable (5) to rotate in the reverse direction.

8. The low-power, high-power digital AC regulated power supply device according to claim 1, characterized in that: The front end of the box (1) is provided with a display screen (11) and a plurality of knobs (12); the upper end of the box (1) is provided with a handle (13); and the side wall of the box (1) is provided with heat dissipation holes (14).

9. A low-power, high-power digital AC regulated power supply device according to claim 1, characterized in that: The control module comprises an ARM processor and a DSP chip; the ARM processor and the DSP chip are electrically connected to each other; the input end of the DSP chip is sequentially connected to a voltage and current transformer, a low-pass filter and an AD analog-to-digital conversion unit; the electrical connector (21) installed in the box (1) is electrically connected to the control module.

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