Frequency conversion equipment applied to micro-grid power control and energy storage control technology

Abstract

The invention relates to the technical field of frequency converters, in particular to frequency conversion equipment applied to a micro-grid power control and energy storage control technology, which comprises a cabinet and a plurality of bunching assemblies, an assembly port is arranged at the bottom of the cabinet, and the bunching assemblies are all arranged in the assembly port. The bunching assembly comprises a bearing frame, a bunching cylinder and two arc-shaped wire blocking plates, the bunching cylinder is arranged on the inner side of the bearing frame, a wire inlet is formed in the bunching cylinder, guide slopes are arranged on the side wall of the bunching cylinder and located on the two sides of the wire inlet, an annular assembly cavity is formed in the bunching cylinder, the first ends of the two arc-shaped wire blocking plates are arranged in the annular assembly cavity, and the second ends of the two arc-shaped wire blocking plates are arranged in the annular assembly cavity. And the second end parts of the two arc-shaped wire baffle plates respectively penetrate through the two guide inclined surfaces and extend to the outer side of the wire bunching cylinder. When wires are connected, both hands of an operator cannot be bound, the ends of the wires can penetrate through the cabinet and the wire bunching barrel without being aligned with any object, and the wire bunching device has the advantages of being simple in operation step and convenient to use.

Description

Technical Field

[0001] The present invention relates to the field of frequency converter technology, and specifically relates to a frequency converter device used in microgrid power control and energy storage control technology. Background Art

[0002] Microgrid refers to a small power generation and distribution system composed of distributed power sources, energy storage devices, energy conversion devices, loads, monitoring and protection devices, etc. The purpose of the microgrid is to achieve flexible and efficient application of distributed power sources and solve the problem of large-scale and diverse distributed power sources connected to the grid. Frequency conversion equipment plays an important role in microgrid power control and energy storage control technology. In a microgrid, the output power of distributed power sources may change due to various factors such as the natural environment and load demand. By adjusting the output power of distributed power sources through the frequency converter, precise control of power in the microgrid can be achieved to ensure the stable operation of the microgrid.

[0003] In the prior art, in order to protect the normal operation of the inverter components, the inverter is usually installed in a cabinet, and a wire harness assembly needs to be set inside the cabinet to limit the wires. For example, the Chinese utility model patent with the patent application number "CN202321481086.5" provides an inverter cabinet, which can limit the wires by using a wire harness plate, a wire harness slot and a clamp block, effectively preventing the wires from becoming messy during the installation process. The clamp block, the first protective pad, the second protective pad, the spring, the handle, the limit slot and the limit block can be used together to clamp and fix the wires to prevent the wires from shaking and deviating.

[0004] However, the device has shortcomings. When connecting wires, the operator must first use one hand to pull the handle to remove the clamp to open the cable trough, and the hand cannot release the handle. In the subsequent operation, in order to allow the wires to pass through the wire holes or cable troughs smoothly, the operator must align the ends of the wires with the center of the wire holes and cable troughs, otherwise the wires will collide with the cabinet or cable trough, resulting in the wires not being properly fixed by the cable trough assembly. In other words, the device has cumbersome operating steps and is inconvenient to use. Summary of the invention

[0005] The purpose of the present invention is to provide a frequency conversion device used in microgrid power control and energy storage control technology. When connecting wires, the operator's two hands will not be restrained, and the ends of the wires do not need to be aligned with any objects to pass through the cabinet and the cable tie. The present invention has the advantages of simple operation steps and easy use.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a frequency conversion device applied to microgrid power control and energy storage control technology, comprising a cabinet and a plurality of wire harness assemblies, wherein an assembly opening is provided at the bottom of the cabinet, and the plurality of wire harness assemblies are arranged in the assembly opening and are closely arranged along the length extension direction of the assembly opening; the wire harness assembly comprises: a carrier frame fixedly arranged on the side wall of the assembly opening, and the carrier frame is in a U-shaped structure; a wire harness drum, arranged on the inner side of the carrier frame and capable of sliding along the inner side wall of the carrier frame, and the wire harness drum is provided with a wire inlet, and the wire inlet penetrates The top and bottom surfaces of the cable drum, the cable inlet and the opening end of the carrier are located on the same side; two arc-shaped wire baffles, guide slopes are provided on the side walls of the cable drum and on both sides of the cable inlet, an annular assembly cavity is provided inside the cable drum, the two ends of the annular assembly cavity respectively pass through the two guide slopes, the first ends of the two arc-shaped wire baffles are both arranged in the annular assembly cavity, the second ends of the two arc-shaped wire baffles respectively pass through the two guide slopes and extend to the outside of the cable drum, and the arc-shaped wire baffles can slide along the inner wall of the annular assembly cavity.

[0007] Preferably, it also includes a wire fixing component, which includes: an elastic bent plate, which is arranged on the inner side of the wire barrel, the elastic bent plate is in a U-shaped structure, and the open end of the elastic bent plate is located on the side away from the wire inlet; an electric telescopic rod, a first assembly groove is provided on the inner side wall of the wire barrel, the electric telescopic rod is arranged in the first assembly groove and fixedly connected to the side wall of the first assembly groove, and the output end of the electric telescopic rod faces the elastic bent plate; an adjusting member, which is fixedly arranged at the output end of the electric telescopic rod, the elastic bent plate is arranged on the inner side of the elastic bent plate, the elastic bent plate is fixedly connected to the adjusting member, and there is a gap between the middle part of the elastic bent plate and the middle part of the adjusting member.

[0008] Preferably, the middle part of the elastic bent plate is provided with two protrusions and a recessed part, the recessed part is located between the two protrusions, and the inner side wall of the cable barrel is provided with two guide planes, and the two guide planes are respectively adjacent to the two guide inclined planes; the wire fixing assembly also includes two limit plates, the two limit plates are respectively arranged on the two guide planes, and the structures are mirror-symmetrical, and second assembly grooves are provided on the inner side wall of the cable barrel and on both sides of the first assembly groove, and first support plates are provided on the top and bottom of the limit plate, and the limit plate, the first support plate and the guide plane are altogether The two ends of the elastic bent plate respectively pass through the two ring-shaped structures and extend into the second assembly groove, and the elastic bent plate can slide along the inner wall of the second assembly groove; the adjusting member includes an adjusting bent plate, and a plurality of second support plates are fixedly arranged on both sides of the adjusting bent plate, and the plurality of second support plates are evenly distributed at equal intervals. A first avoidance opening is provided in the middle of the limiting plate, and the second support plate passes through the first avoidance opening and is fixedly connected to the elastic bent plate, and the distance between the second support plate and the protrusion is greater than the distance between the second support plate and the end of the elastic bent plate.

[0009] Preferably, the wiring harness assembly also includes an opening and closing control assembly, which includes: a wiring block fixedly arranged on the top surface of the wiring harness barrel and located on the side away from the wiring inlet, and a wiring groove is provided on the top of the wiring block; two arc-shaped racks, and the bottom of the outer side walls of the two arc-shaped wire baffles are provided with a third assembly groove, the two arc-shaped racks are respectively arranged in the two third assembly grooves, and are respectively fixedly connected to the two arc-shaped wire baffles, and two second avoidance openings are provided at the bottom of the outer side wall of the wiring harness barrel, and the positions of the two second avoidance openings respectively correspond to the positions of the two arc-shaped racks, and the second avoidance openings are connected to the annular The assembly cavity is connected; two linear racks are both arranged at the open end of the carrier frame and are respectively fixed on the inner side walls of the carrier frame, the linear rack and the second avoidance opening are located at the same height, and the linear rack can mesh with the arc-shaped rack for transmission; a traction member is arranged below the cable drum, the traction member includes a vertical rod and a wire hook plate, the vertical rod is located on the side away from the cable inlet, the first end of the vertical rod is fixedly connected to the bottom surface of the cable drum, the second end of the vertical rod is fixedly connected to the wire hook plate, the wire hook plate is in a C-shaped structure, and the direction of the open end of the wire hook plate is different from the direction of the open end of the carrier frame.

[0010] Preferably, a first protrusion is fixedly provided at the bottom of the outer wall on both sides of the cable tie reel, and a first slide is provided on the inner wall on both sides of the supporting frame, the first protrusion extends into the first slide and can slide along the first slide, and the length of the supporting frame is greater than four times the length of the linear rack.

[0011] Preferably, a dustproof component is provided on the inner side of the carrier frame, and the dustproof component is arranged on the side of the carrier frame close to the linear rack. The dustproof component includes an assembly box, the top surface of the assembly box is open, the assembly box can slide along the inner wall of the carrier frame, the assembly box is detachably connected to the carrier frame, the assembly box is provided with an arc-shaped avoidance groove at one end of the assembly box close to the carrier frame, and the bottom surface of the assembly box is provided with a first dustproof net.

[0012] Preferably, the outer walls on both sides of the assembly box are provided with a second slide, and the two linear racks are respectively arranged in the two second slides and can slide along the second slides; the dustproof component also includes: a display plate, which is arranged on the inner side of the assembly box, and the middle part of the display plate is rotatably connected to the inner wall of the assembly box, the length of the display plate is less than the length of the assembly box, the first end of the display plate is provided with an identification plate, and the second end of the display plate is provided with a clamping groove; a positioning plate, which is arranged on the inner side of the assembly box and is located between the display plate and the first dustproof net, and both ends of the positioning plate are fixedly connected to the inner wall of the assembly box; a clamping block, which is fixedly arranged on the top surface of the positioning plate, the position of the clamping block corresponds to the position of the clamping groove, and the shape of the clamping block matches the shape of the clamping groove.

[0013] Preferably, two heat dissipation components are further included, and the structures of the two heat dissipation components are mirror-symmetrical, and the heat dissipation components include: an air inlet component, an air inlet is provided on the side wall of the cabinet, the air inlet component is arranged in the air inlet, and the air inlet component includes an air outlet; a heat dissipation pipe is arranged inside the cabinet, and the first end of the heat dissipation pipe is connected to the air outlet end of the air inlet component; an air outlet box is arranged inside the cabinet and above the wire bundle, the air outlet box is fixedly connected to the inner side wall of the cabinet, the second end of the heat dissipation pipe is connected to the interior of the air outlet box, and the bottom surface of the air outlet box is provided with a plurality of evenly distributed air outlet holes, and the length of the air outlet box is greater than the length of the supporting frame.

[0014] Preferably, the air inlet assembly includes: a supporting frame, which is fixedly connected to the cabinet, and a fan is provided on the inner side of the supporting frame; a second dust screen, which is fixedly arranged on the side of the supporting frame away from the heat dissipation pipe; and an air gathering box, which is trumpet-shaped, and the opening width of the first end of the air gathering box is larger than the opening width of the second end, the first end of the air gathering box is connected to the inner side of the supporting frame, and the second end of the air gathering box is connected to the first end of the heat dissipation pipe.

[0015] Preferably, the heat dissipation pipe is arranged to be serpentinely reciprocatingly bent, and a fourth assembly groove is provided on the side of the inner wall of the heat dissipation pipe away from the cabinet, and a heat conduction plate is provided in the fourth assembly groove, and the shape of the heat conduction plate matches the shape of the heat dissipation pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (i) The present invention includes a cabinet and a plurality of wire harness assemblies. When connecting wires, both hands of the operator will not be restrained, and the ends of the wires do not need to be aligned with any object to pass through the cabinet and the wire harness barrel. The present invention has the advantages of simple operation steps and easy use.

[0018] (ii) The present invention also includes a wire fixing component and an opening and closing control component, both of which are arranged on the wire bundle. The wire fixing component can fix the wires and prevent the wires from moving after they are connected. The opening and closing control component can control the contact and separation of the two arc-shaped wire baffles, which is convenient for wiring and disconnecting.

[0019] (III) The present invention also includes a dustproof component, which includes an assembly box, an arc-shaped avoidance groove is provided at one end of the assembly box close to the carrier, and a first dustproof net is provided on the bottom surface of the assembly box. When the wires are connected, the arc-shaped avoidance groove fits with the outer wall of the cable drum, and the cable drum cannot move at will. After closing the cabinet door, the assembly box is restricted and cannot move, and the first dustproof net can prevent dust from entering the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an axonometric diagram of the present invention after the cabinet door is opened;

[0021] Figure 2 It is an axonometric view of the cabinet in the present invention;

[0022] Figure 3 It is an axonometric view at an angle when the wiring harness assembly and the dustproof assembly of the present invention are installed together;

[0023] Figure 4 It is an axonometric view from another angle when the wiring harness assembly and the dustproof assembly of the present invention are installed together;

[0024] Figure 5 is an axonometric view of the carrier frame of the present invention;

[0025] Figure 6 It is an axonometric view of the wire harness assembly of the present invention when two arc-shaped wire baffles are attached;

[0026] Figure 7 It is an axonometric view of the wire harness assembly of the present invention after the two arc-shaped wire baffles are separated;

[0027] Figure 8 It is an axonometric exploded view of the cable bundle in the present invention;

[0028] Fig. 9 for Figure 8 The enlarged view of point A in the middle;

[0029] Fig.10 for Figure 8 The enlarged view of point B in the middle;

[0030] Fig.11 It is an axonometric exploded view of the arc-shaped wire baffle in the present invention;

[0031] Fig.12 It is an axonometric exploded view of the wire fixing assembly in the present invention;

[0032] Fig.13 is a top cross-sectional view of the wire harness assembly of the present invention when the elastic bending plate is not in contact with the wire;

[0033] Fig.14 It is a top cross-sectional view of the wire harness assembly of the present invention after the elastic bending plate contacts the wire;

[0034] Fig.15 It is an axonometric view of the assembly box in the present invention;

[0035] Fig.16 It is an axonometric view of the display board in the present invention;

[0036] Fig.17 It is an axonometric view of the heat dissipation assembly in the present invention;

[0037] Fig.18 An axonometric exploded view of a heat dissipation component in the present invention at one angle;

[0038] Fig.19 It is an axonometric exploded view of the heat dissipation component of the present invention from another angle;

[0039] Fig. 20 It is an axonometric exploded view of the heat dissipation pipe in the present invention;

[0040] Fig.21 It is an axonometric view of the present invention after removing the dustproof assembly;

[0041] Fig. 22 It is an axonometric view of the present invention after the cabinet door is closed.

[0042] Reference numerals include:

[0043] 1-cabinet, 11-assembly port, 12-air inlet, 13-cabinet door, 2-wire harness assembly, 21-carrying frame, 211-first slide, 22-wire harness barrel, 221-wire inlet, 222-guide slope, 223-annular assembly cavity, 224-first assembly groove, 225-guide plane, 226-second assembly groove, 227-second avoidance port, 228-first protrusion, 23-arc-shaped baffle plate, 231-third assembly groove, 3-fixed wire assembly, 31-elastic bent plate, 311-protrusion, 312-recessed portion, 32-electric telescopic rod, 33-adjusting member, 331-adjusting bent plate, 332-second support plate, 34-limiting plate, 341-first support plate, 342-first avoidance port, 4-opening and closing control Components, 41-wire block, 411-wire groove, 42-arc rack, 43-straight rack, 44-traction piece, 441-vertical rod, 442-hook plate, 45-magnet, 46-metal plate, 5-dustproof component, 51-assembly box, 511-arc avoidance groove, 512-second slide, 52-first dustproof net, 53-display board, 531-clip groove, 54-sign, 55-positioning plate, 56-clip block, 6-heat dissipation component, 61-air inlet component, 611-carrying frame, 612-fan, 613-second dustproof net, 614-wind gathering box, 62-heat dissipation pipe, 621-fourth assembly groove, 63-air outlet box, 631-air outlet, 64-heat conduction plate, 7-inverter body, 8-wires. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0045] Embodiment 1

[0046] See also Figure 1-22The present invention provides a technical solution: a frequency conversion device used in microgrid power control and energy storage control technology, including a cabinet 1 and a plurality of wire harness assemblies 2. The plurality of wire harness assemblies 2 are arranged in the assembly port 11 at the bottom of the cabinet 1, and the inverter body 7 is arranged above the wire harness assembly 2. The wire harness assembly 2 includes a carrier 21, a wire harness barrel 22 and two arc-shaped wire baffles 23. The carrier 21 is a U-shaped structure, and the wire harness barrel 22 is arranged on the inner side of the carrier 21. When the wire harness barrel 22 is pulled, the wire harness barrel 22 can slide forward and backward along the inner side wall of the carrier 21. The wire harness barrel 22 is provided with a wire inlet 221, and the inside of the wire harness barrel 22 is provided with an annular assembly cavity 223, and the two arc-shaped wire baffles 23 are both arranged in the annular assembly cavity 223. Both sides of the wire inlet 221 are provided with guide slopes 222, and the two arc-shaped wire baffles 23 pass through the two guide slopes 222 respectively and extend to the outside of the wire harness barrel 22.

[0047] When connecting the wire 8, first open the cabinet door 13, move the wire bundle 22 to the front end of the carrier 21, and then push the two arc-shaped wire baffles 2 into the annular assembly cavity 223, so that the wire inlet 221 is in an open state. Then move the end of the wire 8 to the top of the wire bundle 22, and the end of the wire 8 does not need to be aligned with any object, and the wire 8 can be directly placed inside the wire bundle 22. Then pull the two arc-shaped wire baffles 23 out of the annular assembly cavity 223, and fit the arc-shaped wire baffles 23 together, so that the wire inlet 221 is in a closed state. At this time, the range of movement of the wire 8 is limited to the circular space formed by the wire bundle 22 and the two arc-shaped wire baffles 23. Finally, move the wire bundle 22 to the rear end of the carrier 21, connect the end of the wire 8 to the inverter body 7, and then close the cabinet door 13.

[0048] When the present invention connects the wire 8, both hands of the operator will not be bound, and the end of the wire 8 does not need to be aligned with any object to pass through the cabinet 1 and the wire barrel 22. The present invention has the advantages of simple operation steps and easy use.

[0049] Embodiment 2

[0050] Based on Example 1, please refer to Figure 1-14 The present invention further comprises a wire fixing component 3 and an opening and closing control component 4, both of which are arranged on the wire bundle 22. The wire fixing component 3 can fix the wire 8 and prevent the wire 8 from moving after the wire 8 is connected. The opening and closing control component 4 can control the contact and separation of the two arc-shaped wire baffles 23, so as to facilitate the connection and removal of wires.

[0051] See also Figure 6-12The wire fixing assembly 3 includes an elastic bent plate 31, an electric telescopic rod 32 and a position adjusting member 33. The electric telescopic rod 32 is arranged in the first assembly groove 224 on the inner side wall of the cable barrel 22, and the position adjusting member 33 is fixedly arranged at the output end of the electric telescopic rod 32. The elastic bent plate 31 is fixedly connected to the position adjusting member 33. Fig.13 Before the end of the wire 8 is connected to the inverter body 7, the elastic bent plate 31 is not in contact with the wire 8. Fig.14 After the end of the wire 8 is connected to the inverter body 7, the electric telescopic rod 32 extends, driving the adjustment member 33 to move forward, and the adjustment member 33 drives the elastic bent plate 31 to move forward, and the elastic bent plate 31 contacts the wire 8. At this time, the elastic bent plate 31 undergoes elastic deformation, applies pressure to the wire 8, and cooperates with the two arc-shaped wire blocking plates 23 to fix the wire 8 together to prevent the wire 8 from moving. When the wire 8 is to be removed, the electric telescopic rod 32 is shortened, the elastic bent plate 31 can leave the wire 8, and the wire 8 can move inside the movable wire barrel 22. After the two arc-shaped wire blocking plates 23 are separated, the wire 8 can be removed.

[0052] See also Figure 8-10 The middle part of the elastic bent plate 31 is provided with two protrusions 311 and a recessed part 312. The inner side wall of the cable barrel 22 is provided with two guide planes 225, and the two guide planes 225 are respectively adjacent to the two guide inclined surfaces 222. Figure 9-10 and Figure 13-14 The wire fixing assembly 3 also includes two limit plates 34. The top and bottom of the limit plates 34 are each provided with a first support plate 341. The limit plates 34, the first support plate 341 and the guide plane 225 together form a ring-shaped structure. The inner side wall of the cable barrel 22 is also provided with two second assembly grooves 226. The two ends of the elastic bent plate 31 respectively pass through the two ring-shaped structures and extend into the second assembly grooves 226. Please refer to Fig.12 The positioning member 33 includes a positioning bent plate 331 , and a plurality of second support plates 332 are fixedly arranged on both sides of the positioning bent plate 331 . A first avoidance opening 342 is provided in the middle of the limiting plate 34 . The second support plate 332 passes through the first avoidance opening 342 and is fixedly connected to the elastic bent plate 31 .

[0053] See also Figure 13-14When the electric telescopic rod 32 is extended, the adjusting bent plate 331 drives the elastic bent plate 31 to approach the wire 8 through the plurality of second support plates 332. In this process, the elastic bent plate 31 slides along the guide plane 225, and the recessed portion 312 first fits with the wire 8, applying pressure to the rear side of the wire 8. Since the angle between the guide plane 225 and the guide inclined surface 222 is greater than 180°, the protrusion 311 can smoothly enter the space between the wire 8 and the guide inclined surface 222. As the adjusting member 33 continues to drive the elastic bent plate 31 to move forward, the two sides of the protrusion 311 respectively abut against the wire 8 and the guide inclined surface 222. Since there are two protrusions 311, the two protrusions 311 respectively apply pressure to the left and right sides of the wire 8 to prevent the wire 8 from moving. When the elastic bent plate 31 moves forward, the end of the elastic bent plate 31 slides along the second assembly groove 226. When the end of the elastic bent plate 31 leaves the second assembly groove 226, it will be restricted by the first support plate 341. When the electric telescopic rod 32 is shortened, the end of the elastic bent plate 31 can smoothly return to the second assembly groove 226.

[0054] See also Figure 3-9 The opening and closing control assembly 4 includes a wiring block 41, two arc-shaped racks 42, two linear racks 43 and a traction member 44. The wiring block 41 is fixedly arranged on the top surface of the cable drum 22, and a wiring groove 411 is provided on the top of the wiring block 41. The bottom of the outer wall of the two arc-shaped wire baffle plates 23 is provided with a third assembly groove 231, and the two arc-shaped racks 42 are respectively arranged in the two third assembly grooves 231, and the bottom of the outer wall of the cable drum 22 is provided with two second avoidance openings 227. The two linear racks 43 are both arranged at the open end of the carrier frame 21, and the traction member 44 is arranged below the cable drum 22. The traction member 44 includes a vertical rod 441 and a wire hook plate 442, and the wire hook plate 442 is a C-shaped structure, and the direction of the open end of the wire hook plate 442 is different from the direction of the open end of the carrier frame 21.

[0055] See also Figure 1 , Figure 3-9 and Fig.21Before opening the cabinet door 13 to connect the wire 8, first pull the vertical rod 441 forward by hand to move the wire barrel 22 to the front end of the carrier 21. In this process, the linear rack 43 can enter the second avoidance opening 227 and mesh with the arc-shaped rack 42. The linear rack 43 drives the arc-shaped rack 42 to rotate forward, and the arc-shaped rack 42 drives the arc-shaped wire baffle plate 23 to rotate. The two arc-shaped wire baffle plates 23 separate and enter the annular assembly cavity 223. At this time, the operator first inserts the end of the wire 8 into the wire-laying groove 411, and then puts the wire 8 into the inner side of the wire barrel 22 from the wire inlet 221, and then hooks the wire 8 through the wire hook plate 442. Next, pull the vertical rod 441 backward by hand to move the wire barrel 22 to the rear end of the carrier 21. In this process, the linear rack 43 drives the arc-shaped rack 42 to rotate in the opposite direction, and the two arc-shaped wire baffle plates 23 leave the annular assembly cavity 223 and fit together. At this time, the operator can take out the end of the wire 8 from the wiring groove 411 and connect it to the inverter body 7.

[0056] See also Figure 5-9 The bottom of the outer wall of both sides of the cable drum 22 is fixedly provided with a first protrusion 228, and the inner wall of both sides of the carrier 21 is provided with a first slideway 211, and the first protrusion 228 extends into the first slideway 211. When the cable drum 22 moves inside the carrier 21, the first protrusion 228 slides along the first slideway 211, and the first slideway 211 can limit and guide the cable drum 22 through the first protrusion 228, so that the cable drum 22 can only move forward and backward, and cannot move up and down or rotate, and the cable drum 22 will not separate from the carrier 21. Please refer to Figure 7 and Fig.11 , magnets 45 and metal plates 46 are respectively provided on the end surfaces of the two arc-shaped wire baffles 23 that are close to each other. When the arc-shaped rack 42 drives the arc-shaped wire baffles 23 to rotate, and the two arc-shaped wire baffles 23 leave the annular assembly cavity 223 and fit together, the magnet 45 can absorb the metal plate 46. Therefore, when the elastic bent plate 31 applies pressure to the wire 8 and the wire 8 contacts the arc-shaped wire baffles 23, the two arc-shaped wire baffles 23 will not separate. The length of the support frame 21 is four times greater than the length of the linear rack 43. Therefore, when the cable barrel 22 moves, the arc-shaped rack 42 will not immediately contact the linear rack 43, thereby preventing the two arc-shaped wire baffles 23 from separating due to misoperation.

[0057] Embodiment 3

[0058] Based on Example 2, please refer to Figure 1 , Figure 3-4 and Fig.15, a dustproof assembly 5 is provided on the inner side of the carrier 21. The dustproof assembly 5 includes an assembly box 51, which can slide along the inner side wall of the carrier 21. An arc-shaped avoidance groove 511 is provided on one end of the assembly box 51 close to the carrier 21, and a first dustproof net 52 is provided on the bottom surface of the assembly box 51. Figure 1 and Fig.21 When connecting the wire 8, first pull out the assembly box 51 from the carrier 21, remove the dustproof component 5, and the wire barrel 22 can be moved at will. Figure 5 and Fig.15 The outer walls of both sides of the assembly box 51 are provided with second slideways 512, and two linear racks 43 are respectively arranged in the two second slideways 512. When installing or removing the dustproof component 5, the linear racks 43 can slide along the second slideways 512, and the linear racks 43 provide support for the assembly box 51. The assembly box 51 can only move forward and backward, but cannot move up and down, and cannot rotate. Figure 21-22 After the wires 8 are connected, the assembly box 51 is reinstalled into the carrier 21, and the arc-shaped avoidance groove 511 is in contact with the outer wall of the cable drum 22, so that the cable drum 22 cannot move at will. After closing the cabinet door 13, the assembly box 51 is restricted from moving, and the first dustproof net 52 can prevent dust from entering the cabinet 1.

[0059] See also Figure 1 , Figure 3-4 and Figure 15-16 The dustproof assembly 5 also includes a display board 53, an identification plate 54, a positioning plate 55 and a clamping block 56. The display board 53 is arranged on the inner side of the assembly box 51 and is rotatably connected to the inner side wall of the assembly box 51. The identification plate 54 is arranged on the first end of the display board 53, and the second end of the display board 53 is provided with a clamping groove 531. The positioning plate 55 is arranged on the inner side of the assembly box 51, and the clamping block 56 is fixedly arranged on the top surface of the positioning plate 55. The display board 53 and the identification plate 54 can display the information of the wires at the corresponding positions. Before connecting the wires 8, the display board 53 is first rotated to a horizontal state, and the display board 53 can be stored in the assembly box 51, so that the assembly box 51 can be quickly pulled out. After the connection wires 8 are connected and the assembly box 51 is reinstalled in the carrier 21, the display board 53 is rotated to a vertical state. The length of the display board 53 is less than the length of the assembly box 51, so the operator can quickly drive the display board 53 to rotate. At this time, the clamping block 56 enters the clamping groove 531 , and the clamping block 56 can restrict the rotating display board 53 , so that the rotating display board 53 remains in a vertical state and does not fall over.

[0060] Embodiment 4

[0061] Based on Example 3, please refer to Figure 1-4 and Figure 17-19The present invention also includes two heat dissipation components 6. The structures of the two heat dissipation components 6 are mirror-symmetrical. The two heat dissipation components 6 are arranged around the inverter body 7, and can absorb the heat generated by the inverter body 7 and discharge the heat to the outside of the cabinet 1. The heat dissipation component 6 includes an air inlet component 61, a heat dissipation pipe 62 and an air outlet box 63. An air inlet 12 is provided on the side wall of the cabinet 1. The air inlet component 61 is arranged in the air inlet 12, and the air inlet component 61 includes an air outlet end. The first end of the heat dissipation pipe 62 is connected to the air outlet end of the air inlet component 61. The air outlet box 63 is located above the wire bundle 22, and the second end of the heat dissipation pipe 62 is connected to the interior of the air outlet box 63. The bottom surface of the air outlet box 63 is provided with a plurality of evenly distributed air outlet holes 631. Please refer to Figure 1 The air outlet box 63 is arranged below the inverter body 7 and can support the inverter body 7 . The heat dissipation pipe 62 is in contact with the outer wall of the inverter body 7 , and the heat generated by the inverter body 7 can be transferred to the heat dissipation pipe 62 .

[0062] When the heat dissipation assembly 6 is working, the air inlet assembly 61 blows external cold air into the heat dissipation pipe 62, and takes away the heat that the inverter body 7 can transfer to the heat dissipation pipe 62. The hot air will be blown out from the air outlet 631 on the bottom of the air outlet box 63, and discharged to the outside of the cabinet 1 through the first dustproof net 52. The length of the air outlet box 63 is greater than the length of the carrier 21, so the blown hot air will pass through both sides of the display board 53, and the display board 53 is evenly stressed, and will not fall even if it is under the pressure of the wind.

[0063] See also Figure 1-2 and Figure 17-22 The air intake assembly 61 includes a supporting frame 611, a fan 612, a second dustproof net 613 and an air collecting box 614. The supporting frame 611 is fixedly connected to the cabinet 1, and the fan 612 is arranged on the inner side of the supporting frame 611. The second dustproof net 613 is fixedly arranged on the side of the supporting frame 611 away from the heat dissipation pipe 62, which can prevent dust from entering the cabinet 1. The first end of the air collecting box 614 is connected to the inner side of the supporting frame 611, and the second end of the air collecting box 614 is connected to the first end of the heat dissipation pipe 62. When the air intake assembly 61 is working, the fan 612 sends external cold air into the air collecting box 614. Since the air collecting box 614 is in the shape of a trumpet, the cold air will be accelerated after passing through the air collecting box 614, so that the flow rate of the cold air in the heat dissipation pipe 62 is accelerated.

[0064] See also Figure 1-2 and Figure 17-20A fourth assembly groove 621 is provided on the side of the inner wall of the heat dissipation pipe 62 away from the cabinet 1, and a heat conduction plate 64 is provided in the fourth assembly groove 621. Since the heat dissipation pipe 62 is arranged to bend back and forth in a serpentine shape, the contact area between the heat conduction plate 64 and the inverter body 7 is increased, and the heat generated by the inverter body 7 can be more easily transferred to the heat conduction plate 64. When the cold air passes through the heat conduction plate 64, the heat of the heat conduction plate 64 can be taken away, thereby achieving the cooling and heat dissipation of the inverter body 7.

[0065] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0066] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A frequency conversion device used in microgrid power control and energy storage control technology, characterized in that: It comprises a cabinet and a plurality of harness components, wherein an assembly opening is provided at the bottom of the cabinet, and the plurality of harness components are arranged in the assembly opening and closely arranged along the length extension direction of the assembly opening; The wiring harness assembly comprises: A carrier frame, fixedly arranged on the side wall of the assembly opening, and the carrier frame is in a U-shaped structure; A cable drum is arranged on the inner side of the carrier and can slide along the inner side wall of the carrier. The cable drum is provided with a cable inlet, which passes through the top and bottom surfaces of the cable drum and is located on the same side as the opening end of the carrier. Two arc-shaped wire baffles are provided with guiding slopes on the side walls of the wire bundle and on both sides of the wire inlet, and an annular assembly cavity is provided inside the wire bundle. The two ends of the annular assembly cavity respectively pass through the two guiding slopes, and the first ends of the two arc-shaped wire baffles are both arranged in the annular assembly cavity, and the second ends of the two arc-shaped wire baffles respectively pass through the two guiding slopes and extend to the outside of the wire bundle, and the arc-shaped wire baffles can slide along the inner wall of the annular assembly cavity.

2. The frequency conversion device applied to microgrid power control and energy storage control technology according to claim 1 is characterized in that: It also includes a wire fixing assembly, the wire fixing assembly comprising: An elastic bent plate is arranged on the inner side of the cable barrel, the elastic bent plate is in a U-shaped structure, and the opening end of the elastic bent plate is located away from the cable inlet; An electric telescopic rod, wherein a first assembly groove is provided on the inner side wall of the cable barrel, the electric telescopic rod is arranged in the first assembly groove and is fixedly connected to the side wall of the first assembly groove, and the output end of the electric telescopic rod faces the elastic bent plate; The positioning member is fixedly arranged at the output end of the electric telescopic rod, the elastic bent plate is arranged on the inner side of the elastic bent plate, the elastic bent plate is fixedly connected to the positioning member, and there is a gap between the middle part of the elastic bent plate and the middle part of the positioning member.

3. The frequency conversion device applied to microgrid power control and energy storage control technology according to claim 2 is characterized in that: The middle part of the elastic bent plate is provided with two protrusions and a recessed part, the recessed part is located between the two protrusions, and the inner side wall of the cable tie barrel is provided with two guide planes, and the two guide planes are respectively adjacent to the two guide inclined surfaces; The wire fixing assembly also includes two limit plates, which are respectively arranged on the two guide planes and have mirror-symmetric structures. Second assembly grooves are provided on the inner side wall of the cable barrel and on both sides of the first assembly groove. First support plates are provided on the top and bottom of the limit plates. The limit plates, the first support plates and the guide planes are combined to form a ring-shaped structure. The two ends of the elastic bent plate pass through the two ring-shaped structures respectively and extend into the second assembly groove. The elastic bent plate can slide along the inner wall of the second assembly groove. The positioning member includes a positioning bent plate, and a plurality of second support plates are fixedly arranged on both sides of the positioning bent plate, and the plurality of second support plates are evenly distributed at equal intervals. A first avoidance opening is provided in the middle of the limiting plate, and the second support plate passes through the first avoidance opening and is fixedly connected to the elastic bent plate, and the distance between the second support plate and the protrusion is greater than the distance between the second support plate and the end of the elastic bent plate.

4. The frequency conversion device applied to microgrid power control and energy storage control technology according to claim 1, characterized in that: The harness assembly further includes an opening and closing control assembly, and the opening and closing control assembly includes: A wiring block is fixedly arranged on the top surface of the cable barrel and is located away from the cable inlet. A wiring groove is arranged on the top of the wiring block. Two arc-shaped racks, the bottom of the outer side walls of the two arc-shaped wire blocking plates are provided with a third assembly groove, the two arc-shaped racks are respectively arranged in the two third assembly grooves, and are respectively fixedly connected to the two arc-shaped wire blocking plates, and the bottom of the outer side wall of the cable barrel is provided with two second avoidance openings, the positions of the two second avoidance openings respectively correspond to the positions of the two arc-shaped racks, and the second avoidance openings are connected to the annular assembly cavity; Two linear racks are both arranged at the open end of the carrier and are respectively fixedly arranged on the inner side wall of the carrier, the linear rack and the second avoidance opening are located at the same height, and the linear rack can be meshed with the arc-shaped rack for transmission; A traction member is arranged below the cable drum, and the traction member includes a vertical rod and a wire hooking plate. The vertical rod is located on the side away from the cable inlet, the first end of the vertical rod is fixedly connected to the bottom surface of the cable drum, and the second end of the vertical rod is fixedly connected to the wire hooking plate. The wire hooking plate is a C-shaped structure, and the orientation of the open end of the wire hooking plate is different from the orientation of the open end of the supporting frame.

5. The frequency conversion device applied to microgrid power control and energy storage control technology according to claim 4 is characterized in that: A first protrusion is fixedly provided at the bottom of the outer wall on both sides of the cable drum, and a first slide is provided on the inner wall on both sides of the supporting frame. The first protrusion extends into the first slide and can slide along the first slide. The length of the supporting frame is greater than four times the length of the linear rack.

6. The frequency conversion device applied to microgrid power control and energy storage control technology according to claim 4 is characterized in that: A dustproof component is provided on the inner side of the carrier frame, and the dustproof component is provided on the side of the carrier frame close to the linear rack. The dustproof component includes an assembly box, the top surface of the assembly box is open, the assembly box can slide along the inner wall of the carrier frame, the assembly box is detachably connected to the carrier frame, the assembly box is provided with an arc-shaped avoidance groove at one end close to the carrier frame, and the bottom surface of the assembly box is provided with a first dustproof net.

7. The frequency conversion device used in microgrid power control and energy storage control technology according to claim 6, characterized in that: The outer side walls of both sides of the assembly box are provided with second slideways, and the two linear racks are respectively arranged in the two second slideways and can slide along the second slideways; The dustproof component also includes: A display board is arranged inside the assembly box, the middle part of the display board is rotatably connected to the inner wall of the assembly box, the length of the display board is shorter than the length of the assembly box, a first end of the display board is provided with an identification plate, and a second end of the display board is provided with a snap-in groove; A positioning plate, arranged on the inner side of the assembly box and located between the display plate and the first dustproof net, wherein both ends of the positioning plate are fixedly connected to the inner side wall of the assembly box; The clamping block is fixedly arranged on the top surface of the positioning plate, the position of the clamping block corresponds to the position of the clamping slot, and the shape of the clamping block matches the shape of the clamping slot.

8. The frequency conversion device used in microgrid power control and energy storage control technology according to claim 6, characterized in that: It also includes two heat dissipation components, the structures of the two heat dissipation components are mirror-symmetrical, and the heat dissipation components include: An air inlet assembly, wherein an air inlet is provided on the side wall of the cabinet, the air inlet assembly is arranged in the air inlet, and the air inlet assembly includes an air outlet; A heat dissipation pipe is arranged inside the cabinet, and a first end of the heat dissipation pipe is connected to an air outlet end of the air inlet assembly; An air outlet box is arranged inside the cabinet and above the wire bundle. The air outlet box is fixedly connected to the inner wall of the cabinet. The second end of the heat dissipation pipe is connected to the interior of the air outlet box. The bottom surface of the air outlet box is provided with a plurality of evenly distributed air outlet holes. The length of the air outlet box is greater than the length of the supporting frame.

9. The frequency conversion device applied to microgrid power control and energy storage control technology according to claim 8, characterized in that: The air inlet assembly comprises: A carrying frame, the carrying frame is fixedly connected to the cabinet, and a fan is provided inside the carrying frame; A second dustproof net is fixedly arranged on a side of the carrying frame away from the heat dissipation pipe; The wind gathering box is trumpet-shaped, the opening width of the first end of the wind gathering box is greater than the opening width of the second end, the first end of the wind gathering box is connected to the inner side of the supporting frame, and the second end of the wind gathering box is connected to the first end of the heat dissipation pipe.

10. The frequency conversion device used in microgrid power control and energy storage control technology according to claim 8, characterized in that: The heat dissipation pipe is arranged to bend back and forth in a serpentine shape, and a fourth assembly groove is provided on the side of the inner wall of the heat dissipation pipe away from the cabinet. A heat conduction plate is provided in the fourth assembly groove, and the shape of the heat conduction plate matches the shape of the heat dissipation pipe.

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