An isolation structure for protecting electrical components of a frequency conversion cabinet

Abstract

The present invention discloses an isolation structure for protecting electrical components of a frequency conversion cabinet, and relates to the technical field of power distribution equipment. The structure comprises a frequency conversion cabinet, the inner cavity of which is provided with a frequency conversion chamber and a component chamber, and the inner cavity of the component chamber is provided with a plurality of evenly distributed component isolation components arranged along the height direction of the component chamber. The component isolation components can isolate the electrical components separately, and guide the heat generated by the electrical components into the heat dissipation cabinet from time to time to prevent heat accumulation and overheating of the electrical components, thereby protecting the electrical components. A plurality of electrical components are installed in combination on the component isolation components, so as to realize modular installation of the electrical components and facilitate the installation of the electrical components.

Description

Technical Field

[0001] The invention relates to the technical field of power distribution equipment, and in particular to an isolation structure for protecting electrical components of a frequency conversion cabinet. Background Art

[0002] Frequency conversion cabinet, ordinary power cabinet or control cabinet changes from traditional drive mode to frequency conversion drive mode. In short: the control cabinet of the power device is driven by the frequency converter. It has become the currently promoted power drive mode due to its good starting performance, speed regulation performance and energy saving effect.

[0003] The most basic function of the frequency conversion cabinet is to configure the power supply and place all the power supplies you need in a unified cabinet. This makes it easier to organize and maintain. When the frequency conversion cabinet is in use, it is necessary to install multiple electrical components that cooperate with each other to achieve a stable supply of power.

[0004] At present, when installing the electrical components of the frequency conversion cabinet, multiple electrical components are fixed in the frequency conversion cabinet in an orderly manner. However, the space of the frequency conversion cabinet is limited, and the staff needs to install the required electrical components in the limited space of the frequency conversion cabinet, which results in a close distance between the electrical components. When the electrical components are working, the heat generated by the adjacent electrical components conducts heat to each other, causing the electrical components to heat abnormally, thus affecting the service life of the electrical components. In addition, when installing the electrical components, the staff needs to arrange the electrical components in an orderly manner in order. When installing the next electrical component, the position of the installed electrical component will affect the installation operation of the electrical component to be installed, causing inconvenience in the installation of the electrical components.

[0005] Therefore, we have made improvements to this and proposed an isolation structure for protecting the electrical components of the frequency converter cabinet. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides an isolation structure for protecting electrical components of a frequency converter cabinet, which solves the problem in the prior art that the electrical components of the frequency converter cabinet are installed too close to each other, causing the heat generated by the electrical components to be conducted to each other, resulting in abnormal heating of the electrical components themselves, affecting the service life of the electrical components and making the installation of the electrical components inconvenient.

[0007] To achieve the above purpose, the present invention is implemented through the following technical solutions: an isolation structure for protecting electrical components of a frequency conversion cabinet, comprising a frequency conversion cabinet, a heat dissipation cabinet is overlapped and fixedly arranged on the back of the frequency conversion cabinet, the middle inner cavities of the frequency conversion cabinet and the heat dissipation cabinet are isolated and closed by an insulating plate, and the insulating plate is longitudinally arranged in the inner cavities of the frequency conversion cabinet and the heat dissipation cabinet;

[0008] A conductor plate is transversely fixedly arranged in the middle and upper part of the inner cavity of the frequency converter cabinet, and the conductor plate is fixedly arranged on the insulating plate;

[0009] The inner cavity of the frequency conversion cabinet is provided with a frequency conversion chamber and a component chamber, the frequency conversion chamber is arranged on the upper part of the wire board, and the component chamber is arranged on the lower part of the wire board;

[0010] The inner cavity of the component chamber is laterally arranged along the height direction of the component chamber and is provided with a plurality of evenly distributed component isolation components, the component isolation components include a mounting frame, an air guide shell and a fixing assembly, the mounting frame is laterally clamped and arranged on the insulating plate, the air guide shell is hingedly arranged on the upper part of the mounting frame along the length direction of the mounting frame, the inner cavity of the mounting frame is provided with a plurality of evenly arranged isolation chambers through a plurality of partitions evenly arranged longitudinally along the length direction of the mounting frame, a plurality of fixing assemblies are provided, the plurality of said fixing assemblies are symmetrically arranged at the bottom of the inner cavity of the isolation chamber, and the fixing assemblies can be slidably arranged along the length direction of the mounting frame;

[0011] An insulating plate arranged in the component chamber is provided with a plurality of evenly distributed exhaust ports A arranged along the height direction of the component chamber, the exhaust ports A are connected to the heat dissipation cabinet, the exhaust ports A are arranged one-to-one with the air guide housing, the mouth of the air guide housing is buckled with the exhaust ports A, the top wall of the isolation chamber is provided with exhaust ports B, and the exhaust ports B are connected to the air guide housing;

[0012] A sealing plate is longitudinally inserted into the front end portion of the isolation chamber. The sealing plate is made of transparent acrylic material and can seal the isolation chamber.

[0013] As a preferred solution, the fixed assembly includes a slide rail frame, a sliding sleeve and a fixed groove plate, the slide rail frame is a door-type frame structure, the sliding sleeve is a rectangular tube structure, the middle side wall of the slide rail frame is fixedly arranged on the inner wall of the isolation chamber, the sliding sleeve is inserted into the inner cavity of the fixed groove plate, the bottom wall of the sliding sleeve is fitted with the bottom wall of the fixed groove plate, the side walls of the fixed groove plate are symmetrically provided with sliding groove openings, the sliding groove openings and the two end portions of the sliding sleeve are overlapped, and the side walls of the slide rail frame are tightly slidably arranged in the inner cavity of the sliding sleeve and the sliding groove openings;

[0014] The outer edges of the two side walls of the fixed groove plate are laterally provided with fixing plates, and the lower surface of the fixing plates is fitted with the upper surface of the two side walls of the slide rail frame;

[0015] The upper and lower surfaces of the sliding sleeve are symmetrically provided with threaded holes.

[0016] As a preferred solution, plug plates are vertically provided in the middle of both ends of the back side of the mounting frame, spring plates are symmetrically and obliquely provided on both sides of the front end of the plug plates, the front end of the spring plates is fixedly provided at the front end of the plug plates, and the ends of the spring plates are obliquely provided at both sides of the side walls of the plug plates;

[0017] The insulating plate is provided with a plurality of plug holes corresponding to the plug boards one by one, the plug boards are inserted into the plug holes, and the ends of the spring sheets are elastically pressed against the back of the insulating plate.

[0018] As a preferred solution, the air guide shell includes an air guide side plate and an air guide top plate. The air guide side plate is a right-angled trapezoidal structure. Two air guide side plates are provided. The side walls at both ends of the air guide top plate are fixedly connected to the wall surface inside the hypotenuse wall surface of the air guide side plate. The upper surface of the air guide top plate overlaps with the hypotenuse wall surface of the air guide side plate. The long right-angled side wall surface of the air guide side plate is fitted with the upper wall surface of the mounting frame, and the short right-angled side wall surface of the air guide side plate is fitted with the outer surface of the insulating plate.

[0019] As a preferred solution, the upper and lower side walls of the front port of the isolation chamber are laterally penetrated with slots, and the sealing plates are inserted into the slots;

[0020] The upper part of the sealing plate is laterally provided with a stop bar, and the wall surface of the stop bar close to the air guide side plate can be arranged in close contact with the upper bottom wall surface of the air guide side plate;

[0021] A lifting plate is transversely arranged on one side of the stop bar close to the front end portion of the isolation chamber.

[0022] As a preferred solution, wire grooves A are symmetrically provided in the middle of the upper and lower walls of the end opening of the isolation chamber, and a plurality of wire grooves B are provided on the wall of the air guide top plate close to the insulating plate, which correspond one to one with the wire grooves A of the isolation chamber, and the wire grooves A and the wire grooves B are overlapped.

[0023] As a preferred solution, bakelite blocks are symmetrically arranged on both sides of the inner cavity of the frequency conversion chamber, the bakelite blocks are fixedly arranged on the insulating plate, a cable hole is arranged on the upper part of the insulating plate, the cable hole is arranged on the upper part of the bakelite block, and a through hole is arranged on the upper part of one side wall of the heat dissipation cabinet.

[0024] As a preferred solution, the wire board is longitudinally provided with a plurality of evenly distributed wire grooves C, and a positioning block is longitudinally fixedly provided in the middle of the upper surface of the wire board, and the positioning block is a semi-cylindrical column structure;

[0025] The wire board is provided with a wire harness housing, which is a rectangular housing structure, and the upper and lower side walls of the mouth of the wire harness housing are symmetrically provided with a plurality of wire grooves D corresponding to the wire grooves C.

[0026] A positioning housing is fixedly provided in the middle of the upper surface of the wiring harness housing, the positioning housing is a semi-cylindrical housing structure, and the positioning block is inserted into the positioning housing;

[0027] The positioning block and the front end of the positioning housing are fixedly arranged by bolt threads.

[0028] As a preferred solution, it also includes a base, which is arranged at the bottom of the frequency conversion cabinet and the heat dissipation cabinet, and the base is a rectangular shell structure, and the side wall of the base close to the front side of the heat dissipation cabinet is connected to an air intake mesh plate A;

[0029] An air inlet mesh plate B is provided on the top of the base, the air inlet mesh plate B is connected to the base, and the air inlet mesh plate B is connected to the bottom of the frequency conversion cabinet and the heat dissipation cabinet;

[0030] An exhaust box is arranged on the upper part of the heat dissipation cabinet, the exhaust box is connected with the heat dissipation cabinet, and an exhaust mesh plate is arranged on the side wall of the exhaust box close to the front side of the heat dissipation cabinet.

[0031] As a preferred solution, an exhaust port C is transversely arranged at the upper part of the frequency conversion chamber, the exhaust port C is arranged at the upper part of the cable hole, and the exhaust port C is connected to the exhaust box;

[0032] The outer edges of the lower openings of the exhaust port A and the exhaust port C are inclined toward the exhaust box and provided with guide plates, which are transversely arranged in the inner cavity of the heat dissipation cabinet.

[0033] The present invention has the following beneficial effects:

[0034] The component isolation parts can isolate the electrical components separately and guide the heat generated by the electrical components into the heat dissipation cabinet at all times to prevent heat accumulation and overheating of the electrical components, thereby protecting the electrical components;

[0035] A plurality of electrical components are installed in combination on the component isolation component, so that the installation of the electrical components is modularized and the installation of the electrical components is convenient.

[0036] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall structure of an isolation structure for protecting electrical components of a frequency conversion cabinet according to the present invention;

[0038] Figure 2 A schematic diagram of the structure of a component isolation part of an isolation structure for protecting electrical components of a frequency converter cabinet according to the present invention;

[0039] Figure 3 It is a structural schematic diagram of another angle of a component isolation part of an isolation structure for protecting electrical components of a frequency converter cabinet according to the present invention;

[0040] Figure 4 This is a schematic diagram of the structure of fixed components of an isolation structure for protecting electrical components of a frequency converter cabinet according to the present invention;

[0041] Figure 5This is a schematic diagram of the structure of a sliding sleeve and a fixed slot plate of an isolation structure for protecting electrical components of a frequency converter cabinet according to the present invention;

[0042] Figure 6 A schematic diagram of the inner cavity structure of a frequency converter cabinet of the present invention, which has an isolation structure for protecting electrical components of the frequency converter cabinet;

[0043] Figure 7 A schematic diagram of the external structure of a heat dissipation cabinet with an isolation structure for protecting electrical components of a frequency conversion cabinet according to the present invention;

[0044] Figure 8 A schematic diagram of the inner cavity structure of a heat dissipation cabinet of an isolation structure for protecting electrical components of a frequency conversion cabinet according to the present invention;

[0045] Fig. 9 A schematic diagram of a wiring harness housing structure of an isolation structure for protecting electrical components of a frequency converter cabinet according to the present invention;

[0046] In the figure, 1, frequency conversion cabinet; 2, heat dissipation cabinet; 3, insulation board; 4, wire board; 5, frequency conversion chamber; 6, component chamber; 7, component isolation component; 8, mounting frame; 9, air guide housing; 10, fixing assembly; 11, partition; 12, isolation chamber; 13, exhaust port A; 14, exhaust port B; 15, sealing plate; 16, slide rail frame; 17, sliding sleeve; 18, fixing slot plate; 19, slide slot; 20, fixing plate; 21, threaded hole; 22, plug plate; 23, spring sheet; 24, plug hole; 25. Air guide side panel; 26. Air guide top panel; 27. Slot; 28. Stop bar; 29. ​​Lifting plate; 30. Wire duct A; 31. Wire duct B; 32. Bakelite block; 33. Cable hole; 34. Wire duct C; 35. Positioning block; 36. Wire harness housing; 37. Wire duct D; 38. Positioning housing; 39. Base; 40. Air inlet mesh A; 41. Air inlet mesh B; 42. Exhaust box; 43. Exhaust mesh; 44. Exhaust port C; 45. Guide plate; 46. Power cabinet door; 47. Sealing door. DETAILED DESCRIPTION

[0047] 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.

[0048] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0049] For examples, see Figures 1 to 9 The embodiment of the present invention provides a technical solution: an isolation structure for protecting electrical components of a frequency conversion cabinet, comprising a frequency conversion cabinet 1, a heat dissipation cabinet 2 is fixedly arranged on the back of the frequency conversion cabinet 1, and the middle inner cavities of the frequency conversion cabinet 1 and the heat dissipation cabinet 2 are isolated and closed by an insulating plate 3, and the insulating plate 3 is longitudinally arranged in the inner cavities of the frequency conversion cabinet 1 and the heat dissipation cabinet 2;

[0050] A conductor plate 4 is transversely fixedly disposed in the middle and upper part of the inner cavity of the frequency converter cabinet 1, and the conductor plate 4 is fixedly disposed on the insulating plate 3;

[0051] The inner cavity of the frequency conversion cabinet 1 is provided with a frequency conversion chamber 5 and a component chamber 6. The frequency conversion chamber 5 is arranged on the upper part of the wire board 4, and the component chamber 6 is arranged on the lower part of the wire board 4.

[0052] The inner cavity of the component chamber 6 is laterally arranged along the height direction of the component chamber 6 and is provided with a plurality of evenly distributed component isolation components 7, the component isolation components 7 include a mounting frame 8, an air guide housing 9 and a fixing assembly 10, the mounting frame 8 is laterally clamped and arranged on the insulating plate 3, the air guide housing 9 is hingedly arranged on the upper part of the mounting frame 8 along the length direction of the mounting frame 8, the inner cavity of the mounting frame 8 is provided with a plurality of evenly arranged isolation chambers 12 through a plurality of partitions 11 evenly arranged longitudinally along the length direction of the mounting frame 8, a plurality of fixing assemblies 10 are provided, and the plurality of fixing assemblies 10 are symmetrically arranged at the inner cavity bottom of the isolation chamber 12, and the fixing assembly 10 can be slidably arranged along the length direction of the mounting frame 8;

[0053] The insulating plate 3 disposed in the element chamber 6 is provided with a plurality of evenly distributed exhaust ports A13 arranged along the height direction of the element chamber 6, the exhaust ports A13 are connected to the heat dissipation cabinet 2, the exhaust ports A13 are arranged one-to-one with the air guide housing 9, the mouth of the air guide housing 9 is buckled with the exhaust ports A13, the top wall of the isolation chamber 12 is provided with an exhaust port B14, and the exhaust port B14 is connected to the air guide housing 9;

[0054] A sealing plate 15 is longitudinally inserted into the front end portion of the isolation chamber 12 . The sealing plate 15 is made of transparent acrylic material and can seal the isolation chamber 12 .

[0055] The fixing assembly 10 comprises a slide rail frame 16, a sliding sleeve 17 and a fixed slot plate 18. The slide rail frame 16 is a door-type frame structure, and the sliding sleeve 17 is a rectangular tube structure. The middle side wall of the slide rail frame 16 is fixedly arranged on the inner wall of the isolation chamber 12, and the sliding sleeve 17 is inserted and arranged in the inner cavity of the fixed slot plate 18. The bottom wall of the sliding sleeve 17 is fitted with the bottom wall of the fixed slot plate 18. The side walls of the fixed slot plate 18 are symmetrically provided with sliding slot openings 19. The sliding slot openings 19 overlap with the two end portions of the sliding sleeve 17. The side walls of the slide rail frame 16 are tightly slidably arranged in the inner cavity of the sliding sleeve 17 and the sliding slot openings 19.

[0056] The outer edges of the two side walls of the fixed groove plate 18 are laterally provided with fixing plates 20, and the lower surface of the fixing plates 20 is fitted with the upper surface of the two side walls of the slide rail frame 16;

[0057] The upper and lower surfaces of the sliding sleeve 17 are symmetrically provided with threaded holes 21 .

[0058] The middle part of both ends of the back side of the mounting frame 8 is vertically provided with a plug plate 22, and the front ends of the plug plate 22 are symmetrically inclined with spring pieces 23, the front ends of the spring pieces 23 are fixedly arranged at the front ends of the plug plate 22, and the ends of the spring pieces 23 are inclinedly arranged at the sides of the side walls of the plug plate 22;

[0059] The insulating plate 3 is provided with a plurality of insertion holes 24 corresponding to the insertion plates 22 . The insertion plates 22 are inserted into the insertion holes 24 . The ends of the spring sheets 23 are elastically pressed against the back surface of the insulating plate 3 .

[0060] The air guide housing 9 includes an air guide side plate 25 and an air guide top plate 26. The air guide side plate 25 is a right-angled trapezoidal structure. Two air guide side plates 25 are provided. The side walls at both ends of the air guide top plate 26 are fixedly connected to the wall surface inside the hypotenuse wall surface of the air guide side plate 25. The upper surface of the air guide top plate 26 overlaps with the hypotenuse wall surface of the air guide side plate 25. The long right-angled side wall surface of the air guide side plate 25 is fitted with the upper wall surface of the mounting frame 8, and the short right-angled side wall surface of the air guide side plate 25 is fitted with the outer surface of the insulating plate 3.

[0061] The upper and lower side walls of the front end of the isolation chamber 12 are laterally penetrated with slots 27, and the sealing plate 15 is inserted into the slots 27;

[0062] The upper part of the sealing plate 15 is laterally provided with a stop bar 28, and the wall surface of the stop bar 28 close to the air guide side plate 25 can be arranged in close contact with the upper bottom wall surface of the air guide side plate 25;

[0063] A lifting plate 29 is disposed transversely on one side of the stop bar 28 close to the front end of the isolation chamber 12 .

[0064] The isolation chamber 12 is provided with wire grooves A30 symmetrically in the middle of the upper and lower walls at the end opening, and the air guide top plate 26 is provided with a plurality of wire grooves B31 corresponding to the wire grooves A30 of the isolation chamber 12 on the wall near the insulating plate 3, and the wire grooves A30 and the wire grooves B31 are overlapped.

[0065] The frequency conversion chamber 5 has bakelite blocks 32 symmetrically disposed on both sides of its inner cavity. The bakelite blocks 32 are fixedly disposed on the insulating plate 3. The insulating plate 3 has a cable hole 33 disposed on its upper portion. The cable hole 33 is disposed on the upper portion of the bakelite block 32. A through hole is disposed on the upper portion of one side wall of the heat dissipation cabinet 2.

[0066] The conductor plate 4 is longitudinally provided with a plurality of evenly distributed conductor grooves C34, and a positioning block 35 is longitudinally fixedly provided in the middle of the upper surface of the conductor plate 4, and the positioning block 35 is a semi-cylindrical column structure;

[0067] The wire board 4 is sleeved with a wire harness housing 36, which is a rectangular housing structure. The upper and lower side walls of the mouth of the wire harness housing 36 are symmetrically provided with a plurality of wire grooves D37 corresponding to the wire grooves C34.

[0068] A positioning housing 38 is fixedly provided in the middle of the upper surface of the wiring harness housing 36. The positioning housing 38 is a semi-cylindrical housing structure, and the positioning block 35 is inserted into the positioning housing 38.

[0069] The positioning block 35 and the front end of the positioning housing 38 are fixedly arranged by bolt threads.

[0070] It also includes a base 39, which is arranged at the bottom of the frequency conversion cabinet 1 and the heat dissipation cabinet 2. The base 39 is a rectangular shell structure, and the side wall of the base 39 close to the front side of the heat dissipation cabinet 2 is connected to an air intake mesh plate A40;

[0071] An air inlet mesh plate B41 is provided on the top of the base 39, and the air inlet mesh plate B41 is connected to the base 39, and the air inlet mesh plate B41 is connected to the bottom of the frequency conversion cabinet 1 and the heat dissipation cabinet 2;

[0072] An exhaust box 42 is disposed on the upper portion of the heat dissipation cabinet 2 . The exhaust box 42 is connected to the heat dissipation cabinet 2 . An exhaust mesh plate 43 is disposed on the side wall of the exhaust box 42 close to the front side of the heat dissipation cabinet 2 .

[0073] An exhaust port C44 is disposed transversely on the upper portion of the frequency conversion chamber 5. The exhaust port C44 is disposed on the upper portion of the cable hole 33. The exhaust port C44 is connected to the exhaust box 42.

[0074] The outer edges of the lower openings of the exhaust port A13 and the exhaust port C44 are inclined toward the exhaust box 42 and provided with guide plates 45 , and the guide plates 45 are transversely arranged in the inner cavity of the heat dissipation cabinet 2 .

[0075] A power cabinet door 46 is hinged on the front of the frequency conversion cabinet 1 , and a sealing door 47 is hinged on the front of the heat dissipation cabinet 2 .

[0076] Working principle of the present invention:

[0077] The staff fixes the frequency conversion element and the fuse element on the bakelite block 32 in the frequency conversion chamber 5. The frequency conversion element and the fuse element are electrically connected. The cable is connected to the frequency conversion element through the through hole of the heat dissipation cabinet 2 and the cable hole 33 of the insulating plate 3. The frequency conversion element is connected to multiple connecting wires, and the connecting wires are neatly placed in the wire groove C34 of the wire board 4. The wire harness housing 36 is inserted into the wire board 4, and the positioning block 35 is inserted into the positioning housing 38. The wire is located between the wire groove C34 and the wire groove D37, so that the wire is fixed, and then the positioning block 35 and the positioning housing 38 are fixed with bolts.

[0078] Place the electrical component in the isolation chamber 12 of the component isolation component 7, adjust the position of the sliding sleeve 17 of the fixing assembly 10 so that the fixing hole of the electrical component overlaps with the threaded hole 21 of the sliding sleeve 17, and then fix the electrical component to the sliding sleeve 17 with a long bolt. When the threaded end of the long bolt is placed on the bottom wall of the inner cavity of the fixed slot plate 18, the staff adjusts the position of the electrical component so that the electrical component is located in the middle of the isolation chamber 12. The staff continues to turn the long bolt so that the threaded end of the long bolt squeezes the bottom wall of the inner cavity of the fixed slot plate 18. The fixed slot plate 18 transfers the pressure of the long bolt to the fixing plate 20, so that the fixing plate 20 and the slide rail frame 16 are squeezed and set, thereby fixing the electrical component to prevent the electrical component from moving.

[0079] After the electrical components are installed, the staff installs the component isolation component 7 in the component chamber 6;

[0080] The plug board 22 is inserted into the plug hole 24 so that the end of the spring sheet 23 is elastically pressed against the back surface of the insulating plate 3 .

[0081] Connect the electrical components of the upper and lower adjacent component isolation components 7 one by one through connecting wires, and place the connecting wires connecting the electrical components in the wire groove A30 and the wire groove B31;

[0082] Connect the electrical components of the component isolation component 7 disposed on the upper part of the component chamber 6 to the connecting wires of the frequency conversion component;

[0083] The air guide housing 9 is buckled onto the insulating plate 3, so that the exhaust port A13 is connected to the air guide housing 9, and the element isolation component 7 is connected to the heat dissipation cabinet 2;

[0084] The sealing plate 15 is inserted into the slot 27 to seal the isolation chamber 12, and the power cabinet door 46 and the sealing door 47 are closed.

[0085] During operation, the heat generated by the electrical components enters the heat dissipation cabinet 2 through the air guide housing 9 and the exhaust port A13. The inclined guide plate 45 can prevent the hot air generated by the component isolation component 7 disposed at the lower part of the component chamber 6 from flowing back into the frequency conversion cabinet 1 through the adjacent exhaust port A13.

[0086] The heat generated by the frequency conversion components and the fuse components enters the heat dissipation cabinet 2 through the exhaust port C44;

[0087] The heat generated by the electrical components, the frequency conversion components and the insurance components is gathered in the heat dissipation cabinet 2 and then discharged through the exhaust mesh plate 43 of the exhaust box 42 .

[0088] When the hot air of the frequency conversion cabinet 1 is exhausted, the cold air outside the frequency conversion cabinet 1 and the heat dissipation cabinet 2 enters the frequency conversion cabinet 1 and the heat dissipation cabinet 2 through the air inlet mesh plate A40 and the air inlet mesh plate B41 of the base 39 .

[0089] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0090] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An isolation structure for protecting electrical components of a frequency converter cabinet, characterized in that: It comprises a frequency conversion cabinet (1), a heat dissipation cabinet (2) being overlapped and fixedly arranged on the back of the frequency conversion cabinet (1), the middle inner cavities of the frequency conversion cabinet (1) and the heat dissipation cabinet (2) being isolated and closed by an insulating plate (3), and the insulating plate (3) being longitudinally arranged in the inner cavities of the frequency conversion cabinet (1) and the heat dissipation cabinet (2); A conductor plate (4) is transversely fixedly disposed in the middle and upper part of the inner cavity of the frequency conversion cabinet (1), and the conductor plate (4) is fixedly disposed on the insulating plate (3); The inner cavity of the frequency conversion cabinet (1) is provided with a frequency conversion chamber (5) and a component chamber (6); the frequency conversion chamber (5) is arranged on the upper part of the wire board (4), and the component chamber (6) is arranged on the lower part of the wire board (4); The inner cavity of the component chamber (6) is laterally arranged along the height direction of the component chamber (6) and is provided with a plurality of evenly distributed component isolation components (7). The component isolation components (7) include a mounting frame (8), an air guide shell (9) and a fixing assembly (10). The mounting frame (8) is laterally clamped and arranged on the insulating plate (3). The air guide shell (9) is hingedly arranged on the upper part of the mounting frame (8) along the length direction of the mounting frame (8). The inner cavity of the mounting frame (8) is provided with a plurality of evenly arranged isolation chambers (12) at intervals through a plurality of partitions (11) evenly arranged longitudinally along the length direction of the mounting frame (8). A plurality of fixing assemblies (10) are provided. The plurality of fixing assemblies (10) are symmetrically arranged at the bottom of the inner cavity of the isolation chamber (12). The fixing assembly (10) can be slidably arranged along the length direction of the mounting frame (8). An insulating plate (3) disposed in the element chamber (6) is provided with a plurality of evenly distributed exhaust ports A (13) arranged along the height direction of the element chamber (6), the exhaust ports A (13) being connected to the heat dissipation cabinet (2), the exhaust ports A (13) being arranged in one-to-one correspondence with the air guide housing (9), the mouth of the air guide housing (9) being buckled with the exhaust ports A (13), the top wall of the isolation chamber (12) being provided with exhaust ports B (14), the exhaust ports B (14) being connected to the air guide housing (9); A sealing plate (15) is longitudinally inserted into the front end portion of the isolation chamber (12); the sealing plate (15) is made of a transparent acrylic material, and the sealing plate (15) is capable of sealing the isolation chamber (12).

2. The isolation structure for protecting electrical components of a frequency converter cabinet according to claim 1, characterized in that: The fixing assembly (10) comprises a slide rail frame (16), a sliding sleeve (17) and a fixed groove plate (18); the slide rail frame (16) is a door-type frame structure; the sliding sleeve (17) is a rectangular tube structure; the middle side wall of the slide rail frame (16) is fixedly arranged on the inner wall of the isolation chamber (12); the sliding sleeve (17) is inserted into the inner cavity of the fixed groove plate (18); the bottom wall of the sliding sleeve (17) is fitted with the bottom wall of the fixed groove plate (18); the side walls on both sides of the fixed groove plate (18) are symmetrically provided with sliding groove openings (19); the sliding groove openings (19) and the two end portions of the sliding sleeve (17) are overlapped; the side walls on both sides of the slide rail frame (16) are tightly slidably arranged in the inner cavity of the sliding sleeve (17) and the sliding groove openings (19); The outer edges of the two side walls of the fixed groove plate (18) are laterally provided with fixed plates (20), and the lower surface of the fixed plate (20) is arranged to fit with the upper surface of the two side walls of the slide rail frame (16); The upper and lower surfaces of the sliding sleeve (17) are symmetrically provided with threaded holes (21).

3. The isolation structure for protecting electrical components of a frequency converter cabinet according to claim 1, characterized in that: A plug plate (22) is vertically provided in the middle of both ends of the back side of the mounting frame (8), and spring plates (23) are symmetrically and obliquely provided on both sides of the front end of the plug plate (22), the front end of the spring plate (23) is fixedly arranged at the front end of the plug plate (22), and the end of the spring plate (23) is obliquely arranged on both sides of the side wall of the plug plate (22); The insulating plate (3) is provided with a plurality of insertion holes (24) arranged in one-to-one correspondence with the insertion plates (22); the insertion plates (22) are inserted into the insertion holes (24); and the ends of the spring sheets (23) are elastically pressed against the back surface of the insulating plate (3).

4. The isolation structure for protecting electrical components of a frequency converter cabinet according to claim 2, characterized in that: The air guide housing (9) comprises an air guide side plate (25) and an air guide top plate (26), the air guide side plate (25) being a right-angled trapezoidal structure, two air guide side plates (25) being provided, the side walls at both ends of the air guide top plate (26) being fixedly connected to the wall surface inside the hypotenuse wall surface of the air guide side plate (25), the upper surface of the air guide top plate (26) being overlapped with the hypotenuse wall surface of the air guide side plate (25), the long right-angled side wall surface of the air guide side plate (25) being fitted with the upper wall surface of the mounting frame (8), and the short right-angled side wall surface of the air guide side plate (25) being fitted with the outer surface of the insulating plate (3).

5. The isolation structure for protecting electrical components of a frequency converter cabinet according to claim 4, characterized in that: The upper and lower side walls of the front end portion of the isolation chamber (12) are laterally penetrated by slots (27), and the sealing plate (15) is inserted into the slots (27); A stop bar (28) is laterally provided on the upper portion of the sealing plate (15), and a wall surface of the stop bar (28) close to the air guide side plate (25) can be arranged in close contact with an upper bottom wall surface of the air guide side plate (25); A lifting plate (29) is laterally provided on one side of the stop bar (28) close to the front end portion of the isolation chamber (12).

6. The isolation structure for protecting electrical components of a frequency converter cabinet according to claim 4, characterized in that: A wire groove A (30) is symmetrically provided in the middle of the upper and lower wall surfaces of the end opening of the isolation chamber (12), and a wall surface of the air guide top plate (26) close to the insulating plate (3) is provided with a plurality of wire grooves B (31) arranged one-to-one corresponding to the wire grooves A (30) of the isolation chamber (12), and the wire grooves A (30) and the wire grooves B (31) are arranged overlapping.

7. The isolation structure for protecting electrical components of a frequency converter cabinet according to claim 1, characterized in that: Bakelite blocks (32) are symmetrically arranged on both sides of the inner cavity of the frequency conversion chamber (5), the bakelite blocks (32) are fixedly arranged on the insulating plate (3), a cable hole (33) is arranged on the upper part of the insulating plate (3), and the cable hole (33) is arranged on the upper part of the bakelite block (32), and a through hole is arranged on the upper part of one side wall of the heat dissipation cabinet (2).

8. The isolation structure for protecting electrical components of a frequency converter cabinet according to claim 1, characterized in that: The conductor plate (4) is longitudinally provided with a plurality of evenly distributed conductor grooves C (34), and a positioning block (35) is longitudinally fixedly provided in the middle of the upper surface of the conductor plate (4), and the positioning block (35) is a semi-cylindrical column structure; The wire board (4) is sleeved with a wire harness housing (36), the wire harness housing (36) is a rectangular housing structure, and the upper and lower side walls of the opening of the wire harness housing (36) are symmetrically provided with a plurality of wire grooves D (37) arranged one-to-one corresponding to the wire grooves C (34); A positioning housing (38) is fixedly provided in the middle of the upper surface of the wiring harness housing (36); the positioning housing (38) is a semi-cylindrical housing structure, and the positioning block (35) is inserted into the positioning housing (38); The front ends of the positioning block (35) and the positioning housing (38) are fixedly arranged by means of bolt threads.

9. The isolation structure for protecting electrical components of a frequency converter cabinet according to claim 7, characterized in that: It also includes a base (39), which is arranged at the bottom of the frequency conversion cabinet (1) and the heat dissipation cabinet (2), the base (39) being a rectangular shell structure, and an air intake mesh plate A (40) is provided on the side wall of the base (39) close to the front side of the heat dissipation cabinet (2); An air inlet mesh plate B (41) is provided on the top of the base (39), the air inlet mesh plate B (41) is connected to the base (39), and the air inlet mesh plate B (41) is connected to the bottom of the frequency conversion cabinet (1) and the heat dissipation cabinet (2); An exhaust box (42) is provided on the upper part of the heat dissipation cabinet (2), the exhaust box (42) is connected to the heat dissipation cabinet (2), and an exhaust mesh plate (43) is provided on the side wall of the exhaust box (42) close to the front side of the heat dissipation cabinet (2).

10. The isolation structure for protecting electrical components of a frequency converter cabinet according to claim 9, characterized in that: An exhaust port C (44) is laterally provided at the upper portion of the frequency conversion chamber (5), the exhaust port C (44) is arranged at the upper portion of the cable hole (33), and the exhaust port C (44) is connected to the exhaust box (42); A guide plate (45) is provided at the outer edge of the lower opening of the exhaust port A (13) and the exhaust port C (44) so ​​as to be inclined toward the exhaust box (42). The guide plate (45) is transversely arranged in the inner cavity of the heat dissipation cabinet (2).

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