Portable adjustable AC power supply and test load all-in-one machine

Abstract

The invention relates to the technical field of test power supplies, and discloses a portable adjustable AC power supply and test load all-in-one machine, which comprises a box body, a plurality of load joints, a switch, a power supply joint, a controller and a plurality of displays, and is characterized in that the bottom of the box body is provided with a storage assembly, and one side of the box body is movably connected with a box cover; two fixing blocks are fixedly connected to the bottom of the box cover, a second inserting groove is formed in one side of each fixing block, two first sliding grooves are formed in one side of the box body, clamping frames are movably connected into the first sliding grooves, one ends of the clamping frames are connected with the second inserting grooves in an inserted mode, tension springs are fixedly connected to one sides of the clamping frames, and the tension springs are fixed to the first sliding grooves. Corresponding power supply conditions can be provided for debugging and maintenance of various different devices, meanwhile, the device is small in size, a worker can conveniently carry the device to move, the device is not limited by the environment, the device is safer, and operation of the worker is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of test power supplies, and particularly to a portable adjustable AC power supply and test load integrated machine. Background Art

[0002] At the present stage, if it is necessary to test, debug, and repair high and low voltage frequency conversion, soft start and other equipment, a three-phase 380V - 690V AC power supply needs to be connected. However, generally, a 380V test power supply is not available on-site, and a 690V power supply is even less available. During the equipment repair test and debugging process, it is necessary to connect to a standard power supply to achieve the purpose.

[0003] Currently, the common standard power supplies on the market are large in volume, not convenient to move, and belong to large-capacity power supplies, which have considerable potential safety hazards to personnel and equipment. Moreover, the standard power supplies are highly restricted by the environmental site, resulting in extremely dangerous and inconvenient equipment repair test and debugging. Summary of the Invention

[0004] (I) Technical Problems to be Solved In view of the deficiencies of the prior art, the present invention provides a portable adjustable AC power supply and test load integrated machine, mainly to solve the problems that the standard power supply is large in volume, not convenient to move, belongs to a large-capacity power supply, has considerable potential safety hazards to personnel and equipment, and is highly restricted by the environmental site, resulting in extremely dangerous and inconvenient equipment repair test and debugging.

[0005] (II) Technical Solutions To achieve the above object, the present invention provides the following technical solutions: A portable adjustable AC power supply and test load integrated machine includes a box body, a plurality of load connectors, a switch, a power supply connector, a controller, and a plurality of displays. A storage component is provided at the bottom of the box body. One side of the box body is movably connected with a box cover. Two fixing blocks are fixedly connected to the bottom of the box cover. A second slot is opened on one side of the fixing block. Two first chutes are opened on one side of the box body. A clamping frame is movably connected inside the first chute, and one end of the clamping frame is inserted into the second slot. A tension spring is fixedly connected to one side of the clamping frame, and the tension spring is fixed to the first chute. Two card slots are opened on one side of the box body, and the card slots are communicated with the first chute. The fixing block is inserted into the card slot. A second chute is opened on one side of the box body. A first sliding frame is movably connected inside the second chute, and the first sliding frame is in contact with the inclined surface of the clamping frame. A second magnetic block is fixedly connected to the top of the first sliding frame. A first magnetic block is fixedly connected to one side of the box body, and the magnetic poles of the first magnetic block and the second magnetic block repel each other. An avoidance hole is opened on the outer wall of one side of the box body. A cam is movably connected inside the avoidance hole, and the top of the cam is in contact with the first sliding frame.

[0006] Further, the storage component includes a placement groove which is opened on one side of the box body. A placement box is movably connected inside the placement groove. A first slot is opened at the top of the placement box. A third sliding groove is opened on one side of the box body. A second sliding frame is movably connected inside the third sliding groove. The bottom end of the second sliding frame is inserted into the first slot. The bottom of the cam is in contact with the second sliding frame. A spring is fixedly connected to the bottom end of the second sliding frame and is fixed to the third sliding groove.

[0007] On the basis of the foregoing solution, elastic limit frames are fixedly connected to both sides of the avoidance hole, and the cam can be clamped with the elastic limit frames.

[0008] As a further solution of the present invention, arc-shaped grooves are opened on both sides of the placement box. Installation grooves are opened on both sides of the placement groove. Elastic balls are fixedly connected inside the installation grooves, and the elastic balls are clamped with the arc-shaped grooves. Avoidance grooves are opened on the outer walls of both sides of the placement box, and the elastic balls can be slidably connected with the avoidance grooves.

[0009] Further, an installation plate is provided inside the box body. The switch, the power supply connector, the controller, multiple load connectors and multiple displays are all installed on the upper surface of the installation plate.

[0010] On the basis of the foregoing solution, limiting plates are fixedly connected to the outer walls of both sides of the placement box.

[0011] As a further solution of the present invention, a pulling groove is opened on one side of the box body, and the pulling groove is located below the placement box.

[0012] Further, a handle is movably connected to the top of the box cover. A turning handle is fixedly connected to one side of the cam. Two positioning blocks are fixedly connected to the outer wall of one side of the box body. A protrusion is fixedly connected to the top of the turning handle, and the positioning block is directly above the protrusion.

[0013] (III) Beneficial Effects Compared with the prior art, the present invention provides a portable adjustable AC power supply and test load integrated machine, which has the following beneficial effects: 1. The present invention can provide corresponding power supply conditions for debugging and repairing a variety of different devices. At the same time, the device is small in size, convenient for staff to carry the device for movement, can be safely used in multiple scenarios, is not restricted by the environment, is safer, and is convenient for staff to operate.

[0014] 2. Through the combined use of the first sliding frame and the second sliding frame, the positions of the box cover and the placement box are fixed. At the same time, it is convenient for staff to operate and open. The placement box can store the power cord, avoiding the easy loss of the power cord and improving the use effect of the device.

[0015] 3. During the process of pulling out and placing the box in the present invention, the elastic balls move relative to each other in the avoidance grooves, making the process of moving the placement box more stable. The limiting plate can limit the moving distance of the placement box, preventing the placement box from moving out of the box body and improving the stability of the device.

[0016] 4. In the present invention, through the cooperation of the positioning block and the protrusion, it is convenient for the staff to understand the rotation direction of the cam, avoiding wasting time by repeatedly rotating and debugging.

[0017] 5. When testing the power module of the high-voltage frequency converter in the present invention, adjust the output of this device to a fixed power supply voltage of 690V 50HZ. Only a 220V 50HZ lighting AC power supply is required to meet the input requirement of the 690V 50HZ AC power supply needed by the power module, fully meeting the power supply input voltage standard, and facilitating various testing and debugging processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of a portable adjustable AC power supply and test load integrated machine proposed by the present invention; Figure 2 is a use-expanded structural schematic diagram of a portable adjustable AC power supply and test load integrated machine proposed by the present invention; Figure 3 is a partially enlarged structural schematic diagram of part A of a portable adjustable AC power supply and test load integrated machine proposed by the present invention; Figure 4 is a magnified structural schematic diagram of the card holder of a portable adjustable AC power supply and test load integrated machine proposed by the present invention; Figure 5 is a magnified structural schematic diagram of the cam of a portable adjustable AC power supply and test load integrated machine proposed by the present invention; Figure 6 is a partially sectional structural schematic diagram of a portable adjustable AC power supply and test load integrated machine proposed by the present invention; Figure 7 is the circuit diagram of a portable adjustable AC power supply and test load integrated machine proposed by the present invention.

[0019] In the figure: 1. box body; 2. box cover; 3. handle; 4. positioning block; 5. protrusion; 6. turning handle; 7. placement box; 8. pulling groove; 9. placement groove; 10. fixing block; 11. load connector; 12. switch; 13. power supply connector; 14. avoidance groove; 15. arc-shaped groove; 16. first slot; 17. card slot; 18. mounting plate; 19. controller; 20. display; 21. second slot; 22. limiting plate; 23. mounting groove; 24. card holder; 25. pulling spring; 26. first sliding groove; 27. first sliding carriage; 28. second sliding groove; 29. second sliding carriage; 30. spring; 31. third sliding groove; 32. elastic ball; 33. avoidance hole; 34. elastic limiting frame; 35. cam; 36. first magnetic block; 37. second magnetic block. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Refer to Figures 1 - 7, A portable adjustable AC power supply and test load integrated machine, including a box body 1, multiple load connectors 11, a switch 12, a power supply connector 13, a controller 19, and multiple displays 20. The switch 1, the power supply connector 13, and the load connectors 11 are electrically connected. The load connectors 11, the controller 19, and the displays 20 are electrically connected. The multiple displays 2 respectively display three-phase voltage, three-phase current, load voltage, and load current. A storage component is provided at the bottom of the box body 1. A box cover 2 is rotatably connected to one side of the box body 1. Two fixing blocks 10 are fixed to the bottom of the box cover 2 by bolts. A second slot 21 is opened on one side of the fixing block 10. Two first chutes 26 are opened on one side of the box body 1. A card holder 24 is slidably connected inside the first chutes 26. The first chutes 26 can guide the card holder 24 to move stably. One end of the card holder 24 is inserted into the second slot 21. A tension spring 25 is welded to one side of the card holder 24 and is fixed to the first chutes 26. Two card slots 17 are opened on one side of the box body 1 and are communicated with the first chutes 26. The fixing block 10 is inserted into the card slots 17. A second chute 28 is opened on one side of the box body 1. A first sliding frame 27 is slidably connected inside the second chute 28 and is in contact with the inclined surface of the card holder 24. A second magnetic block 37 is fixed to the top of the first sliding frame 27 by bolts. A first magnetic block 36 is fixed to one side of the box body 1 by bolts, and the magnetic poles of the first magnetic block 36 and the second magnetic block 37 repel each other. An avoidance hole 33 is opened on the outer wall of one side of the box body 1. A cam 35 is rotatably connected inside the avoidance hole 33, and the top of the cam 35 is in contact with the first sliding frame 27. When the cam 35 rotates and separates from the first sliding frame 27 until the cam 35 is caught in the elastic limiting frame 34, at this time, when the first sliding frame 27 loses its restriction, due to the repulsive force between the first magnetic block 36 and the second magnetic block 37, combined with the gravity of the first sliding frame 27 itself, the first sliding frame 27 moves downward along the second chute 28. At the same time, the tension spring 25 rebounds and contracts, causing the card holder 24 to move towards the middle along the first chutes 26 respectively until the card holder 24 separates from the second slot 21. At this time, the fixing block 10 loses its restriction. Rotate the box cover 2 upward to move the fixing block 10 out of the card slots 17. At this time, the staff opens the box cover 2, inserts one end of the power cord into the power supply connector 13, and connects the other end to the 220V mains power supply. Connect devices such as high and low voltage inverters and soft starters to be debugged and repaired to this device. Turn on the switch 13. After rectification, filtering, inversion, isolation boost, current and voltage monitoring, the terminal outputs alternating current to the devices to be debugged and repaired, changing from single-phase 220V 50HZ AC input to three-phase 0 - 700V 0 - 60HZ adjustable AC output, so as to meet the AC power supply of 380V - 690V.

[0022] Particularly, the storage component includes a placement slot 9 which is opened on one side of the box body 1. A placement box 7 is slidably connected in the placement slot 9. A first slot 16 is opened at the top of the placement box 7. A third chute 31 is opened on one side of the box body 1. A second carriage 29 is slidably connected inside the third chute 31. The bottom end of the second carriage 29 is inserted into the first slot 16. The bottom of the cam 35 contacts the second carriage 29. A spring 30 is welded to the bottom end of the second carriage 29 and the spring 30 is fixed to the third chute 31. Elastic limit frames 34 are fixed on both sides of the avoidance hole 33 by bolts. When the cam 35 rotates and separates from the second carriage 29, the spring 30 rebounds and elongates, causing the second carriage 29 to move upward along the third chute 31 until the bottom end of the second carriage 29 moves out of the first slot 16. Then, the placement box 7 is pulled, and the staff takes out the power cord placed in the placement box 7. The cam 35 can be engaged with the elastic limit frame 34, and the elastic limit frame 34 can limit and fix the position of the cam 35. Arc-shaped grooves 15 are opened on both sides of the placement box 7. Installation grooves 23 are opened on both sides of the placement slot 9. Elastic balls 32 are bonded in the installation grooves 23, and the elastic balls 32 are engaged with the arc-shaped grooves 15. Through the cooperation of the elastic balls 32 and the arc-shaped grooves 15, the placement box 7 is assisted in being fixed. Avoidance grooves 14 are opened on the outer walls on both sides of the placement box 7, and the elastic balls 32 can be slidably connected with the avoidance grooves 14. During the process of pulling out the placement box 7, the elastic balls 32 move relatively in the avoidance grooves 14, making the movement of the placement box 7 more stable. Limit plates 22 are fixed on the outer walls on both sides of the placement box 7 by bolts. The limit plates 22 can limit the moving distance of the placement box 7 to prevent the placement box 7 from moving out of the box body 1. A pull slot 8 is opened on one side of the box body 1, and the pull slot 8 is located below the placement box 7. A handle 3 is rotatably connected to the top of the box cover 2. A turning handle 6 is fixed to one side of the cam 35 by bolts. Two positioning blocks 4 are bonded to the outer wall on one side of the box body 1. A protrusion 5 is bonded to the top of the turning handle 6, and the positioning block 4 is directly above the protrusion 5. Through the cooperation of the positioning block 4 and the protrusion 5, it is convenient for the staff to understand the rotation direction of the cam 35. An installation plate 18 is provided inside the box body 1. The switch 12, the power connector 13, the controller 19, multiple load connectors 11 and multiple displays 20 are all installed on the upper surface of the installation plate 18.

[0023] Working principle of this embodiment: When the device needs to be opened, rotate the handle 6 to rotate the cam 35 to separate from the first carriage 27 and the second carriage 29 until the cam 35 is snapped into the elastic limit bracket 34. At this time, the second carriage 29 and the first carriage 27 lose their restrictions. When the first carriage 27 loses its restriction, due to the repulsive force between the first magnet 36 and the second magnet 37, combined with the gravity of the first carriage 27 itself, the first carriage 27 moves downward along the second chute 28. At the same time, the tension spring 25 rebounds and contracts, causing the clamping bracket 24 to move towards the middle along the first chute 26 respectively until the clamping bracket 24 separates from the second slot 21. At this time, the fixed block 10 loses its restriction, and rotate the box cover 2 upward to move the fixed block 10 out of the card slot 17. When the second carriage 29 loses its restriction, the spring 30 rebounds and elongates, causing the second carriage 29 to move upward along the third chute 31 until the bottom end of the second carriage 29 moves out of the first slot 16. Then pull the placement box 7 to separate the elastic ball 32 from the arc-shaped groove 15 and enter the avoidance groove 14, which is convenient for the staff to take out the power cord placed in the placement box 7. Then insert one end of the power cord into the power connector 13 and connect the other end to the 220V mains power supply. Connect the high and low voltage frequency converters, soft starters and other equipment to be debugged and repaired to this device, turn on the switch 13, and after rectification, filtering, inversion, isolation boost, current and voltage monitoring, the terminal AC output is sent to the equipment to be debugged and repaired, changing from single-phase 220V 50HZ AC input to three-phase 0-700V 0-60HZ AC adjustable output, so as to meet the 380V-690V AC power supply.

[0024] All the electrical components mentioned in this article are electrically connected to the external main controller and the 220V mains power supply, and the main controller can be a conventional known device such as a computer for control.

[0025] In the description of this article, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the description herein, it should be noted that relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Also, the terms "comprises", "comprising", or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A portable adjustable AC power supply and test load integrated machine, comprising a box (1), a plurality of load connectors (11), a switch (12), a power connector (13), a controller (19) and a plurality of displays (20), characterized in that: The bottom of the box body (1) is provided with a storage assembly, one side of the box body (1) is movably connected with a box cover (2), the bottom of the box cover (2) is fixedly connected with two fixing blocks (10), one side of the fixing block (10) is provided with a second slot (21), one side of the box body (1) is provided with two first slide grooves (26), the inside of the first slide groove (26) is movably connected with a card frame (24), and one end of the card frame (24) is plugged into the second slot (21), one side of the card frame (24) is fixedly connected with a tension spring (25), and the tension spring (25) is fixed to the first slide groove (26), one side of the box body (1) is provided with two card slots (17), and the card slots (17) are connected to the first slide groove (26), the fixing block (10) is plugged into the card slot (17), and one side of the box body (1) is provided with a card slot (17). A second slide groove (28) is provided, the interior of the second slide groove (28) is movably connected to a first slide frame (27), and the first slide frame (27) contacts the inclined surface of the card frame (24), the top of the first slide frame (27) is fixedly connected to a second magnetic block (37), one side of the box body (1) is fixedly connected to a first magnetic block (36), and the magnetic poles of the first magnetic block (36) and the second magnetic block (37) repel each other, and an avoidance hole (33) is opened on the outer wall of one side of the box body (1), and a cam (35) is movably connected in the avoidance hole (33), and the top of the cam (35) contacts the first slide frame (27).

2. The portable adjustable AC power supply and test load integrated device according to claim 1, characterized in that: The storage assembly comprises a placement groove (9), the placement groove (9) being provided on one side of the box body (1), a placement box (7) being movably connected in the placement groove (9), a first slot (16) being provided on the top of the placement box (7), a third slide groove (31) being provided on one side of the box body (1), a second slide frame (29) being movably connected in the third slide groove (31), a bottom end of the second slide frame (29) being plugged into the first slot (16), a bottom end of the cam (35) being in contact with the second slide frame (29), a spring (30) being fixedly connected to the bottom end of the second slide frame (29), and the spring (30) being fixed to the third slide groove (31).

3. The portable adjustable AC power supply and test load integrated device according to claim 1, characterized in that: Both sides of the avoidance hole (33) are fixedly connected with elastic limit frames (34), and the cam (35) can be clamped with the elastic limit frames (34).

4. The portable adjustable AC power supply and test load integrated device according to claim 2, characterized in that: Both sides of the placement box (7) are provided with arc-shaped grooves (15), both sides of the placement groove (9) are provided with mounting grooves (23), elastic balls (32) are fixedly connected in the mounting grooves (23), and the elastic balls (32) are snap-fitted with the arc-shaped grooves (15), and both sides of the outer walls of the placement box (7) are provided with avoidance grooves (14), and the elastic balls (32) can be slidably connected with the avoidance grooves (14).

5. The portable adjustable AC power supply and test load integrated device according to claim 1, characterized in that: A mounting plate (18) is provided inside the box (1), and a switch (12), a power connector (13), a controller (19), a plurality of load connectors (11) and a plurality of displays (20) are all mounted on an upper surface of the mounting plate (18).

6. The portable adjustable AC power supply and test load integrated device according to claim 2, characterized in that: The outer walls on both sides of the placement box (7) are fixedly connected to limit plates (22).

7. The portable adjustable AC power supply and test load integrated device according to claim 6, characterized in that: A draw groove (8) is provided on one side of the box body (1), and the draw groove (8) is located below the placement box (7).

8. The portable adjustable AC power supply and test load integrated device according to claim 1, characterized in that: The top of the box cover (2) is movably connected to a handle (3), one side of the cam (35) is fixedly connected to a turning handle (6), one side of the outer wall of the box body (1) is fixedly connected to two positioning blocks (4), the top of the turning handle (6) is fixedly connected to a protrusion (5), and the positioning block (4) is located directly above the protrusion (5).

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