Bypass type soft starter cabinet for central air conditioning
By designing a detachable bypass soft starter cabinet, the problems of cumbersome installation, difficult maintenance, poor sealing, and easy damage during air transport of traditional bypass soft starter cabinets are solved, achieving the effects of simplified installation, improved sealing and protection level, and enhanced safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING TICA AIR CONDITIONING CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional bypass soft starter cabinets are complicated to install and maintain due to the integral welding or riveting of components. They also have poor sealing, low protection level, and are prone to deformation and damage during air transport, resulting in insufficient safety.
A detachable bypass soft starter cabinet was designed, including a detachable circuit breaker support frame assembly and a controller support assembly. It adopts structures such as hoisting columns, load-bearing support frames, waterproof mounting columns, rainproof covers, and sealing strips to improve the cabinet's sealing performance and protection level, and enhances rigidity through reinforcing rib structures.
It simplifies the installation and maintenance process, reduces the need for human resources, improves sealing and protection levels, reduces deformation and damage during airborne transportation, and enhances safety.
Smart Images
Figure CN224459033U_ABST
Abstract
Description
Technical Field
[0001] The embodiments disclosed herein relate to the field of soft starter cabinet technology, and more specifically to a bypass soft starter cabinet applied to central air conditioning. Background Technology
[0002] In high-power electromechanical equipment such as central air conditioning systems, bypass soft starters are used to control the motor starting process, reducing the impact of high current on the motor and power grid, improving power quality, and saving energy. With the increasing use of central air conditioning systems equipped with bypass soft starters, high humidity or corrosive gases in coastal areas or chemical plants can cause internal components of the soft starter to become damp or corroded, leading to malfunctions. Therefore, bypass soft starters with higher protection levels are needed. Currently, commonly used traditional bypass soft starters are integrally welded with centralized internal components, and only waterproof the cabinet door without any reinforcement structure for easy transport.
[0003] However, in practice, it has been found that when applying traditional bypass soft starter cabinets to central air conditioning systems, the following technical problems often arise:
[0004] Traditional bypass soft starter cabinets are assembled by welding or riveting individual components, which are then concentrated in one area. This results in cumbersome installation procedures and significant difficulty in disassembly during later maintenance or component replacement. Consequently, the installation, repair, and maintenance of traditional bypass soft starter cabinets are time-consuming and require substantial manpower. Furthermore, traditional bypass soft starter cabinets rely solely on rubber strips to seal the cabinet door, neglecting weak points. This allows moisture and dust to easily penetrate from unsealed areas, creating a security vulnerability and resulting in poor sealing and a low protection level. During air transport, vibration stress concentrates at weak weld points. The use of ordinary steel without cabinet reinforcement leads to insufficient overall rigidity, making them prone to deformation and damage during air transport or installation, and compromising transport safety. Utility Model Content
[0005] The summary portion of this disclosure is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description portion. This summary portion is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.
[0006] Some embodiments of this disclosure propose a bypass soft starter cabinet for use in central air conditioning systems to solve one or more of the technical problems mentioned in the background section above.
[0007] In a first aspect, some embodiments of this disclosure provide a bypass soft starter cabinet for central air conditioning, characterized in that the bypass soft starter cabinet includes a cabinet body, a cabinet door, and an outlet box, wherein the cabinet body includes a thyristor support frame assembly, a circuit breaker support frame assembly, and a controller bracket assembly, the circuit breaker support frame assembly and the controller bracket assembly being detachable; four lifting columns are connected to the four inner corners of the top plate of the cabinet body, each lifting column being connected to a lifting hole; a load-bearing support frame is connected to the inner side of the bottom plate of the cabinet body; the top plate of the cabinet body is provided with a cable inlet, the cable inlet is connected to a cable inlet cover plate, and a flanged structure is provided around the cable inlet; the cable inlet is provided with... The cabinet has an inlet sealing strip; the left and right sides of the cabinet are provided with a preset number of ventilation openings, and each ventilation opening is surrounded by a waterproof mounting post assembly. The waterproof mounting post assembly is connected to a rain cover, which can cover the ventilation opening. Fan cable tie brackets are provided on the left and right sides of the ventilation openings; the cabinet door is provided with a door sealing strip around its perimeter, and round-headed locks are provided on the upper and lower parts of the cabinet door; the cabinet opening is provided with a cabinet sealing strip around its perimeter; the cabinet outlet box is connected to the outer side of the rear panel of the cabinet, and the cabinet door is connected to one side of the cabinet opening. The bottom plate of the outlet box is connected to a target preset number of cable connectors.
[0008] Optionally, the above-mentioned flange structure is a flange structure formed by bending inward, the above-mentioned flange structure is a straight flange with a right angle, and the above-mentioned inlet cover plate is covered with an inlet sealing strip around its perimeter.
[0009] Optionally, the preset number of ventilation openings on the left side panel of the cabinet and the preset number of ventilation openings on the right side panel of the cabinet are symmetrically distributed. Each rain cover connected to the cabinet is equipped with a target number of bolts, and the connection between each welded waterproof mounting column group and the rain cover is a bolt connection.
[0010] Optionally, a transformer support frame is also connected to the inner side of the bottom plate of the cabinet. The transformer support frame is located on the left side of the inner side of the bottom plate, and the load-bearing support frame is located on the right side of the inner side of the bottom plate. The load-bearing support frame is adjacent to the transformer support frame.
[0011] Optionally, both the cabinet door sealing strip and the cabinet body sealing strip are fixed by clips.
[0012] Optionally, an indicator light cable tie is connected to the inner wall of the cabinet door, and a file box is connected to the lower part of the internal space enclosed by the indicator light cable tie.
[0013] Optionally, a door limiting structure is provided between the cabinet door and the cabinet body. The door limiting structure includes a slide rail groove provided at the bottom of the cabinet body opening and a limiter provided on the inner wall of the cabinet door.
[0014] Optionally, the rear panel of the cabinet is provided with a cable outlet, the cable outlet is covered with a cable outlet box, and the bottom plate of the cable outlet box is provided with a predetermined number of threaded interfaces arranged at equal intervals. The predetermined number of cable connectors are connected to the predetermined number of threaded interfaces by means of threaded connection.
[0015] Optionally, the inner side of the thyristor support frame assembly is connected to the inner side of the rear panel of the cabinet, the outer side of the thyristor support frame assembly is connected to the circuit breaker support frame assembly, the controller bracket assembly is connected to the inner frame of the cabinet opening, the thyristor support frame assembly is located in the innermost layer of the cabinet, the circuit breaker support frame assembly is located in the middle layer of the cabinet, and the controller bracket assembly is located in the outermost layer of the cabinet. The load-bearing capacity of the thyristor support frame assembly, the circuit breaker support frame assembly, and the controller bracket assembly is greater than 250N.
[0016] Optionally, an inlet support frame is connected to the inner side of the rear panel of the cabinet. The upper part of the inlet support frame is connected to a limiting piece installed at the inlet, and the lower side of the inlet support frame is connected to the upper side of the circuit breaker support frame assembly. The intermediate partition is fitted between the inner side of the top plate of the cabinet and the upper side of the circuit breaker support frame assembly. One side of the intermediate partition is connected to the controller bracket assembly, and the other side of the intermediate partition is connected to the right side of the inlet support frame. The intermediate partition, the inlet, the inlet support frame, and the circuit breaker support frame assembly constitute the inlet channel.
[0017] Optionally, the controller bracket assembly includes a lower controller bracket and an upper controller bracket. The lower controller bracket is connected to the transformer protection plate, and the left side of the upper controller bracket is connected to the circuit breaker protection plate. The cabinet also includes a controller box, and the right side of the upper controller bracket is connected to the controller box. The transformer protection plate and the circuit breaker protection plate are located on the same horizontal plane. The circuit breaker protection plate, the transformer protection plate, the controller bracket assembly, and the cabinet form a heat dissipation channel. Each ventilation opening on the cabinet is connected to the heat dissipation channel. A rubber seal is provided between the end face of each of the preset number of threaded interfaces and the end face of the connected cable connector.
[0018] The above embodiments of this disclosure have the following beneficial effects: Through some embodiments of this disclosure, a bypass soft starter cabinet applied to a central air conditioning system can shorten the time spent on installation, repair or maintenance of the bypass soft starter cabinet applied to a central air conditioning system, reduce the manpower consumed, and improve the sealing and protection level of the bypass soft starter cabinet. It can also reduce the situation of easy deformation and damage during air transport or installation and improve safety. Specifically, the reasons for the numerous technical problems existing in bypass soft starter cabinets are as follows: Traditional bypass soft starter cabinets are fixed by welding or riveting individual components, and the components are installed in a relatively concentrated manner, resulting in cumbersome installation steps and significant difficulty in disassembly during later maintenance or component replacement. This leads to long installation, repair, and maintenance times and high manpower costs. Traditional bypass soft starter cabinets rely solely on rubber strips to seal the cabinet door, neglecting weak points. This allows moisture and dust to easily penetrate from unsealed areas, creating a weak point in protection, resulting in poor sealing and a low protection level. During air transport, vibration stress concentrates on weak weld points. Traditional bypass soft starter cabinets use ordinary steel without cabinet reinforcement, resulting in insufficient overall rigidity. This makes them prone to deformation and damage during air transport or installation, and also reduces transport safety. Based on this, some embodiments of this disclosure provide a bypass soft starter cabinet for central air conditioning, characterized in that the bypass soft starter cabinet includes a cabinet body, a cabinet door, and an outlet box, wherein the cabinet body includes a thyristor support frame assembly, a circuit breaker support frame assembly, and a controller bracket assembly, the circuit breaker support frame assembly and the controller bracket assembly are both detachable; four lifting columns are connected to the four inner corners of the top plate of the cabinet body, each lifting column is connected to a lifting hole; a load-bearing support frame is connected to the inner side of the bottom plate of the cabinet body; the top plate of the cabinet body is provided with a cable inlet, the cable inlet is connected to a cable inlet cover plate, and a flange structure is provided around the cable inlet; and a flange structure is provided around the cable inlet. The cabinet includes an inlet sealing strip; a preset number of ventilation openings are provided on the left and right sides of the cabinet; a waterproof mounting post assembly is welded around each ventilation opening; a rain cover is connected to the waterproof mounting post assembly and can cover the ventilation opening; fan cable tie brackets are provided on the left and right sides of the ventilation openings; a cabinet door sealing strip is provided around the cabinet door; round-head locks are provided on the upper and lower parts of the cabinet door; a preset number of cable connectors are connected to the bottom plate of the outlet box; a cabinet sealing strip is provided around the cabinet opening; the outlet box is connected to the outer side of the rear panel of the cabinet; and the cabinet door is connected to one side of the cabinet opening.Because the circuit breaker support frame assembly and controller bracket assembly included in the aforementioned bypass soft starter cabinet are both detachable, rather than being permanently fixed by traditional welding, the problems of complex starter cabinet structure and long maintenance time can be solved when installing, maintaining, and repairing the soft starter cabinet. This simplifies installation steps and reduces the difficulty of disassembly during later maintenance or component replacement, shortening the time spent on installation, maintenance, and repair of the bypass soft starter cabinet and reducing manpower consumption. Furthermore, because the aforementioned bypass soft starter cabinet, including the round-head lock and cable connector, can achieve an IP65 protection rating, and the cabinet door round-head lock, flange structure, sealing strip, waterproof mounting post, rain cover, and cable connector all improve the sealing performance of the bypass soft starter cabinet, achieving an IP54 protection rating, the sealing and protection level of the bypass soft starter cabinet can be improved. Because the aforementioned bypass soft starter cabinet has a lifting bracket welded to the upper part of the cabinet, and also contains a fan cable tie with reinforcing ribs inside the cabinet, the likelihood of deformation and damage to the bypass soft starter cabinet during onboard transportation or installation of the central air conditioning unit can be reduced, thus improving transportation safety. Therefore, the aforementioned bypass soft starter cabinet can achieve the effects of shortening installation, repair, or maintenance time and reducing manpower consumption, improving sealing and protection levels, and reducing the likelihood of deformation and damage during onboard transportation or installation, thereby enhancing safety. Attached Figure Description
[0019] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and elements are not necessarily drawn to scale.
[0020] Figure 1 This is an exploded structural diagram of some embodiments of a bypass soft starter cabinet applied to a central air conditioning system according to the present disclosure;
[0021] Figure 2 This is a structural schematic diagram of some embodiments of the cabinet of a bypass soft start cabinet applied to a central air conditioning system according to the present disclosure;
[0022] Figure 3 This is a structural schematic diagram of some embodiments of the cabinet door of a bypass soft-start cabinet applied to a central air conditioning system according to the present disclosure;
[0023] Figure 4 This is a structural schematic diagram of the interior of some embodiments of a bypass soft start cabinet applied to a central air conditioning system according to the present disclosure.
[0024] Figure 5This is a structural schematic diagram of some embodiments of a bypass soft starter cabinet applied to a central air conditioning system according to the present disclosure. Detailed Implementation
[0025] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.
[0026] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.
[0027] It should also be noted that, for ease of description, only the parts relevant to the disclosure are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.
[0028] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.
[0029] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".
[0030] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.
[0031] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.
[0032] Figure 1 This is a schematic diagram of the structure of some embodiments of the cabinet door 2 of the bypass soft start cabinet applied to central air conditioning according to the present disclosure. Figure 1It may include a cabinet door 2, a cabinet body 1, and a junction box 3. The junction box 3 includes a cable connector 14. The cabinet body 1 includes an inlet cover 5, a rain cover 6, a circuit breaker support frame assembly, an inlet support frame 8, an intermediate partition 9, a controller bracket assembly, a controller box 11, a circuit breaker protective plate 12, a lifting hole 30, a transformer protective plate 13, and an inlet sealing strip 29.
[0033] Figure 2 These are schematic diagrams illustrating the structure of cabinet 1, an application of the bypass soft starter cabinet in a central air conditioning system, according to some embodiments of this disclosure. Figure 2 It may include a flange structure 15, a cabinet sealing strip 16, a hoisting column 17, a load-bearing support frame 18, a transformer support frame 19, a thyristor support frame assembly, a ventilation opening 21, a cable outlet 31, a waterproof mounting column 22, and a fan cable tie 23.
[0034] Figure 3 These are schematic diagrams illustrating the structure of cabinet door 2 of a bypass soft-start cabinet used in central air conditioning systems according to some embodiments of this disclosure. Figure 3 It may include cabinet door sealing strip 24, round head lock 25, indicator light cable tie 26, file box 27 and door limit structure 28.
[0035] Figure 4 These are schematic diagrams illustrating some embodiments of the internal structure of a bypass soft starter cabinet used in central air conditioning systems, based on this disclosure. Figure 4 It may include a limiting piece 32 and an inlet support frame 8.
[0036] Figure 5 This is a schematic diagram of some embodiments of the bypass soft starter cabinet for central air conditioning according to the present disclosure.
[0037] In some embodiments, such as Figure 1 As shown, the aforementioned bypass soft starter cabinet may include cabinet body 1, cabinet door 2, and outlet box 3.
[0038] In some embodiments, such as Figure 2As shown, the cabinet 1 may include a thyristor support frame assembly, a circuit breaker support frame assembly, and a controller bracket assembly. Both the circuit breaker support frame assembly and the controller bracket assembly are detachable. The cabinet 1 may be made of hot-dip galvanized steel sheet. It should be noted that the cabinet 1 may be made of any type of high-strength metal. The specific type of metal material used for the cabinet 1 is not specifically limited here. It should be noted that the cabinet 1 may be manufactured by welding sheet metal or as a one-piece structure. The manufacturing method of the cabinet 1 is not specifically limited here. The shape of the cabinet 1 is not specifically limited here; for example, the shape of the cabinet 1 may be a cuboid. The dimensions of the cabinet 1 may be 1060mm (length) × 678mm (width) × 1220mm (height), and the weight may be 350kg. The dimensions, weight, and thickness of the cabinet 1 are not specifically limited here. The cabinet 1 described above is smaller and lighter than traditional soft starter cabinets, thus offering more possibilities for installation methods and improving the ease of installation and airborne transportation. For example, airborne transportation can be carried out by crane or by vehicle. The specific type of airborne transportation is not specifically limited here. The thyristor support frame assembly described above may include an upper thyristor support frame 201 and a lower thyristor support frame 202. The distance between the upper thyristor support frame 201 and the lower thyristor support frame 202 can be 220mm. The distance between the upper thyristor support frame 201 and the lower thyristor support frame 202 is not specifically limited here. The upper thyristor support frame 201 and the lower thyristor support frame 202 can be arranged in parallel. The circuit breaker support frame assembly described above may include a main support frame 701 and a clamping support frame 702. The width of the main support frame 701 is greater than the distance between the upper thyristor support frame 201 and the lower thyristor support frame 202. The main support frame 701 is a square hollow support assembly. The clamping support frame 702 can be a rectangular handle. The connection between the main support frame 701 and the clamping support frame 702 can be a bolt connection. The main support frame 701 provides support and storage for the circuit breaker. The clamping support frame 702 can be used to bind exposed copper cables. The controller bracket assembly can include a top controller bracket, an upper controller bracket 101, and a lower controller bracket 102. The top controller bracket is located on the top inner side of the cabinet opening (not shown in the figure). The upper controller bracket 101 can be T-shaped. The lower controller bracket 102 is the same shape as the top controller bracket, both being rectangular. The distance between the upper controller bracket 101 and the lower controller bracket 102 can match the width of the transformer protection plate 13. The thyristor support frame assembly, circuit breaker support frame assembly, and controller bracket assembly can all be made of hot-dip galvanized steel sheet.Here, no specific material is specified for the thyristor support frame assembly, circuit breaker support frame assembly, and controller bracket assembly mentioned above.
[0039] In some embodiments, such as Figure 1 and Figure 2 As shown, each of the four inner corners of the top plate of the cabinet 1 can be connected to a lifting column 17, and each of the lifting columns 17 can be connected to a lifting hole 30. A load-bearing support frame 18 can be connected to the inner side of the bottom plate of the cabinet 1. The top plate of the cabinet 1 can be provided with a cable inlet. The cable inlet can be connected to an inlet cover plate 5. A flanged structure 15 and a cable inlet sealing strip 29 can be provided around the cable inlet. The connection between the four inner corners of the top plate of the cabinet 1 and the lifting columns 17 is welding. Blind holes can be provided inside the lifting columns 17. The upper part of the lifting hole 30 can be a ring structure, and the lower part of the lifting hole 30 can be a bolt. The bolts included in the lower part of the lifting hole 30 can be connected to the blind holes of the lifting columns 17. The connection between the bottom plate of the cabinet 1 and the load-bearing support frame 18 is welding. Here, the specific connection methods between the four inner corners of the top plate of the cabinet 1 and the lifting column 17, the lifting hole 30 and the lifting column 17, and the bottom plate of the cabinet 1 and the load-bearing support frame 18 are not limited and can be adjusted according to actual needs. The installation of the lifting bracket 17 can meet the lifting requirements of the soft starter cabinet. The load-bearing support frame 18 can distribute the self-weight of the cabinet 1 and the load of the internal components through rigid support, preventing deformation of the bottom plate of the cabinet 1. The material of the load-bearing support frame 18 can be hot-dip galvanized steel plate. The shape of the load-bearing support frame 18 can be rectangular. Here, the shape, thickness, and material of the load-bearing support frame 18 are not specifically limited and can be adjusted according to actual needs. Therefore, the bypass soft starter cabinet can be applied to more types of airborne transportation requirements. Here, the size and material of the lifting bracket are not specifically limited and can be adjusted according to actual needs. The inlet can be located on the left side of the top plate of the cabinet 1. The dimensions of the aforementioned inlet cover 5 match the dimensions of the aforementioned inlet port. It should be noted that the aforementioned inlet port sealing strip 29 is adhered to the aforementioned inlet cover 5, and the aforementioned inlet cover 5 achieves a seal on the aforementioned inlet port through the cover between the aforementioned inlet port sealing strip 29 and the aforementioned inlet port flange structure 15. Here, the dimensions of the aforementioned inlet port are not specifically limited.
[0040] In some embodiments, such as Figure 2As shown, the left and right side panels of the cabinet 1 can each be provided with a preset number of ventilation openings 21. Waterproof mounting posts can be welded around each ventilation opening 21 of the cabinet 1. Rain covers 6 can be connected to these waterproof mounting posts. The connected rain covers 6 can cover the ventilation openings 21. Fan cable tie brackets 23 can be provided on the left and right sides of the ventilation openings 21. The rain covers 6 are connected to the waterproof mounting posts 22 by bolts or welding, and the fan cable tie brackets 23 are connected to the left and right sides of the ventilation openings 21 by bolts or welding. Each waterproof mounting post 22 in the waterproof mounting post assembly can be made of 304 stainless steel, and the shape of the waterproof mounting post 22 can be rectangular or cylindrical. No specific limitations are made on the material and shape of the waterproof mounting posts 22. It should be noted that the waterproof mounting post assembly can be used to connect the rain covers 6 to protect the ventilation openings 21, and the waterproof mounting post assembly has IP54 waterproof functionality. For example, during rain, rainwater can be blocked by the aforementioned rain cover 6, and the connected waterproof mounting column assembly can further prevent water from entering the cabinet 1. The connected waterproof mounting column assembly can also bear the weight of the rain cover 6, preventing deformation and detachment. Since the ventilation opening 21 weakens the strength of the cabinet 1, the connected waterproof mounting column assembly can act as a local reinforcing rib to compensate for structural rigidity. The fan cable tie 23 can be used to fix cables and wiring inside the cabinet, serving a cable-tying function. Furthermore, the fan cable tie 23 can also act as a reinforcing rib to improve the structural stability of the cabinet 1. Both the fan cable tie 23 and the rain cover 6 can be made of hot-dip galvanized steel.
[0041] In some embodiments, such as Figure 1 and Figure 3 As shown, cabinet door 2 can be equipped with a door sealing strip 24 around its perimeter. Round-head locks 25 can be installed at both the top and bottom of cabinet door 2. These round-head locks 25 can have an IP65 protection rating. The specific protection rating of the round-head locks 25 is not specifically limited here. The connection between the round-head locks 25 and cabinet door 2 can be a through-thread locking method or a snap-fit installation method. The specific connection method between the round-head locks 25 and cabinet door 2 is not specifically limited here and can be adjusted according to actual needs.
[0042] In some embodiments, such as Figure 2 As shown, a cabinet sealing strip 16 can be installed around the opening of the cabinet 1.
[0043] In some embodiments, such as Figure 2As shown, the outer side of the rear panel of the cabinet 1 can be connected to the aforementioned cable outlet box 3, and the cabinet door 2 can be connected to one side of the opening of the cabinet 1. A predetermined number of cable connectors 14 can be connected to the bottom of the cable outlet box 3. The connection between the rear of the cabinet 1 and the cable outlet box 3 can be a bolt connection or a snap-fit connection. The connection between the cabinet door 2 and the cabinet 1 can be a cabinet hinge or a snap-fit connection. Here, the specific connection methods between the rear panel of the cabinet 1 and the cable outlet box 3, and between the cabinet door 2 and the cabinet 1, are not specifically limited and can be adjusted according to actual needs. Here, the size of the cabinet door 2 is not specifically limited. The size of the cabinet door 2 matches the size of the cabinet 1. The material of the cable outlet box 3 can be hot-dip galvanized steel sheet.
[0044] Optionally, the aforementioned flange structure 15 can be an inwardly bent flange structure, which can be a straight flange with right angles. An inlet sealing strip 29 can be adhered around the perimeter of the aforementioned cable inlet cover 5. The flange structure 15 can be a straight flange or a rolled edge formed by a bending process. The specific bending process is not specifically limited here.
[0045] Optionally, the preset number of ventilation openings 21 on the left side panel of the cabinet 1 can be symmetrically distributed with the preset number of ventilation openings 21 on the right side panel of the cabinet 1. Each rain cover 6 connected to the cabinet 1 can be provided with a target number of bolts. The connection between each welded waterproof mounting column assembly and the rain cover 6 is a bolt connection. The preset number can be 2, and the target number can be 6. Here, the specific number of ventilation openings 21 and the target number of bolts are not specifically limited.
[0046] Optionally, a transformer support frame 19 may also be connected to the inner side of the base plate of the aforementioned cabinet 1. The transformer support frame 19 may be located on the left side of the inner side of the base plate. The load-bearing support frame 18 may be located on the right side of the inner side of the base plate. The load-bearing support frame 18 may be adjacent to the transformer support frame 19. The transformer support frame 19 can be used to install and fix the transformer, thereby providing a stable support foundation for the transformer. This improves the stability of the transformer's position during soft starter operation, airborne transportation, or vibration environments, reducing the risk of loose wiring connections or component damage due to displacement or shaking. The transformer support frame 19 is connected to the base plate by welding or bolting. The specific connection method between the transformer support frame 19 and the base plate is not specifically limited and can be adjusted according to actual needs.
[0047] Optionally, both the cabinet door sealing strip 24 and the cabinet body sealing strip 16 are fixed using a clip-on method. The fixing method between the cabinet door sealing strip 24 and the cabinet body sealing strip 16 is not limited here. The shapes of the cabinet door sealing strip 24, the cabinet body sealing strip 24, and the inlet sealing strip 29 can all be U-shaped or square. The shapes of the cabinet door sealing strip 24, the cabinet body sealing strip 24, and the inlet sealing strip 29 are not specifically limited here. The material of the cabinet door sealing strip 24, the cabinet body sealing strip 16, and the inlet sealing strip 29 can all be EPDM rubber. It should be noted that the material of the cabinet door sealing strip 24, the cabinet body sealing strip 24, and the inlet sealing strip 29 can be various types of elastomer materials. The specific type of elastomer material for the cabinet door sealing strip 24, the cabinet body sealing strip 24, and the inlet sealing strip 29 is not limited here.
[0048] Optionally, an indicator light cable tie 26 can be connected to the inner wall of the cabinet door 2. A file box 27 can be connected to the lower part of the internal space enclosed by the indicator light cable tie 26. The connection between the indicator light cable tie 26 and the inner wall of the cabinet door 2 can be welding or bolting. The connection between the file box 27 and the lower part of the internal space enclosed by the indicator light cable tie 26 can be welding or bolting. Here, the specific connection methods between the indicator light cable tie 26 and the inner wall of the cabinet door 2, and between the file box 27 and the lower part of the internal space enclosed by the indicator light cable tie 26, are not specifically limited and can be adjusted according to actual needs. The material of the indicator light cable tie 26 and the file box 27 can be hot-dip galvanized steel sheet. Here, the material of the indicator light cable tie 26 and the file box 27 is not specifically limited. The shape of the file box 27 and the indicator light cable tie 26 can be square or rectangular. Here, the shape of the file box 27 and the indicator light cable tie 26 is not specifically limited.
[0049] Optionally, a door limiting structure 28 may be provided between the cabinet door 2 and the cabinet body 1. The door limiting structure 28 may include a slide rail groove located at the bottom of the opening of the cabinet body 1 and a limiter located on the inner wall of the cabinet door 2. The limiter may be made of 304 stainless steel. The limiter may be fixed to the inner wall of the cabinet door 2 by bolts. Here, no specific limitations are made on the material and fixing method of the limiter.
[0050] Optionally, the rear panel of the cabinet 1 may have a cable outlet 31. A cable outlet box 3 may be installed over the cable outlet 31. The bottom plate of the cable outlet box 3 may have a predetermined number of threaded interfaces arranged at equal intervals. The predetermined number of cable connectors 14 and the predetermined number of threaded interfaces may be connected by a threaded connection. The threaded interfaces and cable connectors 14 may correspond one-to-one. Each threaded interface may contain one of the predetermined number of cable connectors 14. The predetermined number may be six. The predetermined number of cable connectors 14 and threaded interfaces is not specifically limited here.
[0051] Optionally, the inner side of the aforementioned thyristor support frame assembly can be connected to the inner side of the rear panel of the aforementioned cabinet 1. The outer side of the aforementioned thyristor support frame assembly can be connected to the aforementioned circuit breaker support frame assembly. The aforementioned controller bracket assembly can be connected to the inner frame of the opening of the aforementioned cabinet 1, and the aforementioned thyristor support frame assembly can be located in the innermost layer of the aforementioned cabinet 1. The aforementioned circuit breaker support frame assembly can be located in the middle layer of the aforementioned cabinet 1. The aforementioned controller bracket assembly can be located in the outermost layer of the aforementioned cabinet 1. The load-bearing capacity of the aforementioned thyristor support frame assembly, the aforementioned circuit breaker support frame assembly, and the aforementioned controller bracket assembly can all be greater than 250N. The connection between the aforementioned thyristor support frame assembly and the innermost layer of the aforementioned cabinet 1 can be welding. The connection between the aforementioned thyristor support frame assembly and the aforementioned circuit breaker support frame assembly can be bolted. The connection between the aforementioned controller bracket assembly and the inner frame of the opening of the aforementioned cabinet 1 can be bolted. Here, the specific connection methods between the aforementioned thyristor support frame assembly and the innermost layer of cabinet 1, the aforementioned thyristor support frame assembly and the aforementioned circuit breaker support frame assembly, and the aforementioned controller bracket assembly and the inner frame of the opening of cabinet 1 are not specifically limited and can be adjusted according to actual needs. The aforementioned thyristor support frame assembly can be used to install core high-voltage electrical components such as thyristors, providing a stable mounting foundation for the thyristors. The load-bearing capacity of the aforementioned thyristor support frame assembly is greater than 250N, which can stably support heavy high-voltage electrical components such as thyristors, ensuring their structural stability during airborne transportation or operation. The aforementioned circuit breaker support frame assembly can be used to install high-voltage electrical components such as circuit breakers, enabling independent installation and assembly of high-voltage electrical components. The load-bearing capacity of the aforementioned circuit breaker support frame assembly is greater than 250N, which can stably support the circuit breaker. The material of each of the aforementioned support frame assemblies can be hot-dip galvanized steel sheet. Here, no specific limitations are made on the materials and manufacturing methods of the above-mentioned thyristor support frame group, controller bracket group and circuit breaker support frame group, which can be adjusted according to actual needs.
[0052] In the process of adopting technical solutions to address the aforementioned technical problems, the following technical problem often arises: In central air conditioning systems using bypass soft start cabinets in metal processing workshops or textile printing and dyeing workshops, the lack of an independent inlet channel at the bypass soft start cabinet's inlet allows foreign objects to easily enter the cabinet and contact high-voltage components, leading to damage to various components within the cabinet. The conventional solution to this technical problem is generally to use dust covers to isolate metal particles or fiber dust. However, considering the shortcomings of using dust covers to isolate metal particles or fiber dust, and leveraging the advantages of our company in improving the protection level of bypass soft start cabinets, we have decided to adopt the following solution:
[0053] Optionally, an inlet support frame 8 can be connected to the inner side of the rear panel of the cabinet 1. The upper part of the inlet support frame 8 can be connected to the limiting piece 32 installed at the inlet. The lower side of the inlet support frame 8 can be connected to the upper side of the circuit breaker support frame assembly. The intermediate partition 9 can be snapped between the inner side of the top plate of the cabinet 1 and the upper side of the circuit breaker support frame assembly. One side of the intermediate partition 9 can be connected to the controller bracket assembly. The other side of the intermediate partition 9 can be connected to the right side of the inlet support frame 8. The intermediate partition 9, the inlet, the inlet support frame 8, and the circuit breaker support frame assembly can form an inlet channel. The limiting piece 32 at the inlet can be fixed to the inlet by welding, and the upper part of the inlet support frame can be connected to the limiting piece 32 at the inlet by bolts. The lower side of the inlet support frame 8 can be connected to the upper side of the circuit breaker support frame assembly by bolts. The connection between one side of the aforementioned intermediate partition 9 and the aforementioned controller bracket assembly can be a bolt connection. The connection between the other side of the aforementioned intermediate partition 9 and the right side of the aforementioned inlet support frame 8 can also be a bolt connection. Here, the specific connection methods between the limiting piece 32 at the inlet and the inlet, the upper part of the aforementioned inlet support frame 8 and the limiting piece 32 at the inlet, the lower side of the aforementioned inlet support frame 8 and the upper side of the aforementioned circuit breaker support frame assembly, one side of the aforementioned intermediate partition 9 and the aforementioned controller bracket assembly, and the other side of the aforementioned intermediate partition 9 and the aforementioned inlet support frame 8 are not specifically limited and can be adjusted according to actual needs. The aforementioned intermediate partition 9 can be used to guide cables directly from the inlet into components such as the circuit breaker, thereby preventing cables from contacting other high-voltage components inside the cabinet 1 and reducing the intrusion of foreign objects into the inlet channel. The material of the aforementioned intermediate partition 9 can be hot-dip galvanized steel sheet.
[0054] The above-described optional embodiments, as an inventive point of this disclosure, solve the technical problem of "foreign objects easily entering the cabinet and contacting high-voltage components, leading to damage to various components within the bypass soft starter cabinet." The specific factors contributing to the easy entry of foreign objects into bypass soft starter cabinets used in central air conditioning systems, thereby causing damage to various components, are as follows: In central air conditioning systems using bypass soft starter cabinets in metal processing workshops or textile printing and dyeing workshops, the lack of an independent inlet channel at the bypass soft starter cabinet's inlet allows foreign objects to easily enter the cabinet and contact high-voltage components, leading to damage to various components within the bypass soft starter cabinet. Solving these factors reduces the likelihood of foreign objects easily entering the cabinet and contacting high-voltage components when using bypass soft starter cabinets applied to central air conditioning systems, thereby reducing the damage to various components within the bypass soft starter cabinet. To achieve this effect, in this embodiment, the circuit breaker support frame abuts against the incoming line support frame 8 on its upper side to support the incoming line cable. A middle partition 9 is fitted between the inner wall of the cabinet and the circuit breaker support frame to separate the incoming line area. A flanged structure 15 is provided at the incoming line port, which, together with a sealing strip, forms a sealed entrance. When using the above-mentioned bypass soft starter cabinet, the combined enclosed incoming line channel reduces the effect of foreign objects entering the cabinet and contacting high-voltage components.
[0055] In the process of adopting technical solutions to address the aforementioned technical problems, the following technical problem often arises: Central air conditioning systems with bypass soft starters used in high-temperature and corrosive environments such as chemical plants or coastal areas often suffer from incompatibility between heat dissipation and overall protection performance, leading to overheating and aging of the equipment and a low overall protection level. In central air conditioning systems with bypass soft starters used in electromagnetically sensitive scenarios such as semiconductor manufacturing, the lack of physical isolation between the high-voltage and low-voltage controller units causes electromagnetic interference between them, resulting in burnt-out internal wiring. Conventional solutions to these technical problems typically involve air cooling and dust covers, while semiconductor electromagnetic protection relies on grounding and anti-static materials. However, considering the shortcomings of using air cooling, dust covers, and grounding for electromagnetic protection, and leveraging the advantages of our company in improving the protection level of bypass soft starters, we have decided to adopt the following solution:
[0056] Optionally, the controller bracket assembly may include a lower controller bracket 102 and an upper controller bracket 101. The lower controller bracket 102 may be connected to the transformer protection plate 13. The left side of the upper controller bracket 101 may be connected to the circuit breaker protection plate 12. The cabinet 1 also includes a controller box 11. The right side of the upper controller bracket 101 may be connected to the controller box 11. The transformer protection plate 13 may be located on the same horizontal plane as the circuit breaker protection plate 12. The circuit breaker protection plate 12, the transformer protection plate 13, the controller bracket assembly, and the cabinet 1 may form a heat dissipation channel. Various ventilation openings 21 that may be provided on the cabinet 1 may communicate with the heat dissipation channel. A rubber seal may be provided between the end face of each of the predetermined number of threaded interfaces and the end face of the connected cable connector 14. Only the controller assembly is installed in the controller box 11. The connection between the lower controller bracket 102 and the transformer protection plate 13 can be either a snap-fit or a bolt connection. The connection between the left side of the upper controller bracket 101 and the circuit breaker protection plate 12 can also be either a snap-fit or a bolt connection. The circuit breaker protection plate 12 includes a circuit breaker operating hole through which the circuit breaker operating rod can pass to operate the circuit breaker. The controller support frame assembly can be used to fix the controller box 11. Since only the controller assembly is installed inside the controller box 11, physical isolation between strong and weak currents can be achieved, reducing electromagnetic interference. The load-bearing capacity of the controller support frame assembly is greater than 250N, which can stably support the controller box 11 and the protection plate, ensuring the stability of the weak current system installation. Here, the specific connection methods between the lower controller bracket 102 and the transformer protection plate 13, and between the left side of the upper controller bracket 101 and the circuit breaker protection plate 12, are not specifically limited and can be adjusted according to actual needs. The spacing between the upper controller bracket 101 and the lower controller bracket 102 matches the dimensions of the transformer protection plate 13. Both the transformer protection plate 13 and the circuit breaker protection plate 12 can be made of PC insulated transparent sheet. Here, no specific limitations are made on the spacing between the upper controller bracket 101 and the lower controller bracket 102, the dimensions of the transformer protection plate 13, or the materials of the transformer protection plate 13 and the circuit breaker protection plate 12. The distance between the upper controller bracket 101 and the left side panel of the cabinet 1 can match the dimensions of the circuit breaker protection plate 12. The distance between the right side of the upper controller bracket 101 and the right side panel of the cabinet 1 can match the dimensions of the controller box 11.The circuit breaker protection plate 12 and the transformer protection plate 13 work together to achieve high-voltage isolation and safety protection. They can be directly covered on the outside of high-voltage components to block direct physical contact between high-voltage and low-voltage areas, thus enhancing safety protection. Both the transformer protection plate 13 and the circuit breaker protection plate 12 are PC insulated transparent plates, which allows for transparent observation and maintenance. The internal high-voltage components can be directly observed without disassembling the protection plate, facilitating daily inspections and troubleshooting.
[0057] In the process of adopting technical solutions to address the aforementioned technical problems, the following technical problem often arises: Central air conditioning systems with bypass soft starters used in high-temperature and corrosive environments such as chemical plants or coastal areas often suffer from incompatibility between heat dissipation and overall protection performance, leading to overheating and aging of the equipment and a low overall protection level. In central air conditioning systems with bypass soft starters used in electromagnetically sensitive scenarios such as semiconductor manufacturing, the lack of physical isolation between the high-voltage and low-voltage controller units causes electromagnetic interference between them, resulting in burnt-out internal wiring. Conventional solutions to these technical problems typically involve air cooling and dust covers, while semiconductor electromagnetic protection relies on grounding and anti-static materials. However, considering the shortcomings of using air cooling, dust covers, and grounding for electromagnetic protection, and leveraging the advantages of our company in improving the protection level of bypass soft starters, we have decided to adopt the following solution:
[0058] The above optional embodiments, as an inventive point of this disclosure, solve the technical problem of "equipment being prone to overheating and aging, resulting in a low overall protection level of the bypass soft starter cabinet; electromagnetic interference between the strong and weak current units causing internal circuit burnout in the bypass soft starter cabinet". The specific factors causing bypass soft starter cabinets used in central air conditioning systems to be prone to overheating and aging, resulting in a low overall protection level, and electromagnetic interference between the strong and weak current units of the bypass soft starter cabinet causing internal circuit burnout are as follows: In central air conditioning systems using bypass soft starter cabinets in high-temperature corrosive environments such as chemical plants or coastal areas, the heat dissipation effect and overall protection performance are difficult to reconcile, causing the equipment to overheat and age easily, resulting in a low overall protection level; In central air conditioning systems using bypass soft starter cabinets in electromagnetically sensitive scenarios such as semiconductors, the strong current unit and weak current controller group of the bypass soft starter cabinet are not physically isolated, causing electromagnetic interference between the strong and weak current units, leading to internal circuit burnout in the bypass soft starter cabinet. If the above factors are addressed, the compatibility between ventilation and overall protection performance in bypass soft starter cabinets used in central air conditioning systems can be improved, and strong and weak current units can be effectively isolated, achieving a higher level of protection. To achieve this, this embodiment uses circuit breaker protection plate 12 and transformer protection plate 13 made of PC insulated transparent board, forming a sealed heat dissipation channel with the controller bracket assembly and cabinet 1 to achieve convection heat dissipation. The controller assembly is separately installed in the controller box 11. Both the circuit breaker protection plate 12 and the transformer protection plate 13 are fully protected by PC insulated transparent board, thereby achieving strong current isolation from the exposed copper busbars of the circuit breaker and improving safety. The PC insulated plastic board effectively isolates the strong and weak current units and is easy for maintenance personnel to observe. A rainproof rubber seal is clamped between the cable connector and the threaded interface of the outlet box 3 to achieve a rubber seal. This effectively achieves compatibility between ventilation and overall protection performance, and effectively isolates the strong and weak current units.
[0059] The above embodiments of this disclosure have the following beneficial effects: Through some embodiments of this disclosure, a bypass soft starter cabinet applied to a central air conditioning system can shorten the time spent on installation, repair or maintenance of the bypass soft starter cabinet applied to a central air conditioning system, reduce the manpower consumed, and improve the sealing and protection level of the bypass soft starter cabinet. It can also reduce the situation of easy deformation and damage during air transport or installation and improve safety. Specifically, the reasons for the numerous technical problems existing in bypass soft starter cabinets are as follows: Traditional bypass soft starter cabinets are fixed by welding or riveting individual components, and the components are installed in a relatively concentrated manner, resulting in cumbersome installation steps and significant difficulty in disassembly during later maintenance or component replacement. This leads to long installation, repair, and maintenance times and high manpower costs. Traditional bypass soft starter cabinets rely solely on rubber strips to seal the cabinet door, neglecting weak points. This allows moisture and dust to easily penetrate from unsealed areas, creating a weak point in protection, resulting in poor sealing and a low protection level. During air transport, vibration stress concentrates on weak weld points. Traditional bypass soft starter cabinets use ordinary steel without cabinet reinforcement, resulting in insufficient overall rigidity. This makes them prone to deformation and damage during air transport or installation, and also reduces transport safety. Based on this, some embodiments of this disclosure provide a bypass soft starter cabinet for central air conditioning, characterized in that the bypass soft starter cabinet includes a cabinet body, a cabinet door, and an outlet box, wherein the cabinet body includes a thyristor support frame assembly, a circuit breaker support frame assembly, and a controller bracket assembly, the circuit breaker support frame assembly and the controller bracket assembly are both detachable; each of the four corners of the inner side of the top plate of the cabinet body is connected to a lifting column, each of the lifting columns is connected to a lifting hole; a load-bearing support frame is connected to the inner side of the bottom plate of the cabinet body; the top plate of the cabinet body is provided with a cable inlet, the cable inlet is connected to a cable inlet cover plate, and a flange structure 15 is provided around the cable inlet. The cabinet has an inlet sealing strip; the left and right sides of the cabinet are provided with a preset number of ventilation openings, and each ventilation opening is surrounded by a waterproof mounting post assembly. The waterproof mounting post assembly is connected to a rain cover, which can cover the ventilation opening. Fan cable tie brackets are provided on the left and right sides of the ventilation openings; the cabinet door is provided with a door sealing strip around its perimeter, and round-headed locks are provided on the upper and lower parts of the cabinet door; the cabinet opening is provided with a cabinet sealing strip around its perimeter; the cabinet outlet box is connected to the outer side of the rear panel of the cabinet, and the cabinet door is connected to one side of the cabinet opening. The bottom plate of the outlet box is connected to a target preset number of cable connectors.Because the circuit breaker support frame assembly and controller bracket assembly included in the aforementioned bypass soft starter cabinet are both detachable, rather than being permanently fixed by traditional welding, the problems of complex starter cabinet structure and long maintenance time can be solved when installing, maintaining, and repairing the soft starter cabinet. This simplifies installation steps and reduces the difficulty of disassembly during later maintenance or component replacement, shortening the time spent on installation, maintenance, and repair of the bypass soft starter cabinet and reducing manpower consumption. Furthermore, because the aforementioned bypass soft starter cabinet, including the round-head lock and cable connector, can achieve an IP65 protection rating, and the cabinet door round-head lock, flange structure, sealing strip, waterproof mounting post, rain cover, and cable connector all improve the sealing performance of the bypass soft starter cabinet, achieving an IP54 protection rating, the sealing and protection level of the bypass soft starter cabinet can be improved. Because the aforementioned bypass soft starter cabinet has a lifting bracket welded to the upper part of the cabinet, and also contains a fan cable tie with reinforcing ribs inside the cabinet, the likelihood of deformation and damage to the bypass soft starter cabinet during onboard transportation or installation of the central air conditioning unit can be reduced, thus improving transportation safety. Therefore, the aforementioned bypass soft starter cabinet can achieve the effects of shortening installation, repair, or maintenance time and reducing manpower consumption, improving sealing and protection levels, and reducing the likelihood of deformation and damage during onboard transportation or installation, thereby enhancing safety.
[0060] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of disclosure in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.
Claims
1. A bypass soft starter cabinet for use in central air conditioning, characterized in that, The bypass soft starter cabinet includes a cabinet body, a cabinet door, and an outgoing junction box, wherein... The cabinet includes a thyristor support frame assembly, a circuit breaker support frame assembly, and a controller bracket assembly, both of which are detachable. The cabinet has four hanging columns connected to the inner corners of the top plate, each with a hanging hole. The cabinet has a load-bearing support frame connected to the inner side of the bottom plate. The cabinet has a cable inlet on the top plate, with a cable inlet cover plate. The cable inlet has a flanged structure around its perimeter and a cable inlet sealing strip around its perimeter. The left and right panels of the cabinet are each provided with a preset number of ventilation openings. Each ventilation opening of the cabinet is surrounded by a waterproof mounting column assembly. The waterproof mounting column assembly is connected to a rain cover, which can cover the ventilation opening. Fan cable tie brackets are provided on the left and right sides of the ventilation opening. The cabinet door is equipped with a door sealing strip around its perimeter, and a round-headed lock is installed at both the top and bottom of the cabinet door. The cabinet opening is surrounded by a cabinet sealing strip; The cabinet has a cable outlet box connected to the outer side of the rear panel, the cabinet door is connected to one side of the cabinet opening, and the bottom plate of the cable outlet box has a target preset number of cable connectors connected to it.
2. The bypass softstart cabinet according to claim 1, characterized in that The flange structure is a flange structure formed by bending inward, and the flange structure is a straight flange at a right angle. The inlet cover plate is covered with an inlet sealing strip around its perimeter.
3. The bypass softstart cabinet according to claim 1, characterized in that The preset number of ventilation openings on the left side panel of the cabinet and the preset number of ventilation openings on the right side panel of the cabinet are symmetrically distributed. Each rain cover connected to the cabinet is equipped with a target number of bolts. The connection between each welded waterproof mounting column group and the rain cover is a bolt connection.
4. The bypass softstart cabinet of claim 1, wherein, A transformer support frame is also connected to the inner side of the base plate of the cabinet. The transformer support frame is located on the left side of the inner side of the base plate, and the load-bearing support frame is located on the right side of the inner side of the base plate. The load-bearing support frame is adjacent to the transformer support frame.
5. The bypass softstart cabinet of claim 1, wherein, Both the cabinet door sealing strip and the cabinet body sealing strip are fixed by clips.
6. The bypass softstart cabinet of claim 1, wherein, The inner wall of the cabinet door is connected to an indicator light cable tie, and a file box is connected to the lower part of the internal space enclosed by the indicator light cable tie.
7. The bypass softstart cabinet of claim 1, wherein, A door limiting structure is provided between the cabinet door and the cabinet body. The door limiting structure includes a slide rail groove provided at the bottom of the cabinet body opening and a limiter provided on the inner wall of the cabinet door.
8. The bypass softstart cabinet of claim 1, wherein, The rear panel of the cabinet has a cable outlet, and the cable outlet is covered by the cable outlet box. The bottom plate of the cable outlet box is provided with a target preset number of threaded interfaces arranged at equal intervals. The target preset number of cable connectors are connected to the target preset number of threaded interfaces by threaded connection.
9. The bypass softstart cabinet of claim 1, wherein, The inner side of the thyristor support frame assembly is connected to the inner side of the rear panel of the cabinet, the outer side of the thyristor support frame assembly is connected to the circuit breaker support frame assembly, and the controller bracket assembly is connected to the inner frame of the cabinet opening. The thyristor support frame assembly is located in the innermost layer of the cabinet, the circuit breaker support frame assembly is located in the middle layer of the cabinet, and the controller bracket assembly is located in the outermost layer of the cabinet. The load-bearing capacity of the thyristor support frame assembly, the circuit breaker support frame assembly, and the controller bracket assembly is greater than 250N.