Integrated ring main unit structure

By integrating the outer casing and the ring main unit into a single integrated ring main unit structure, the problems of sealing and waterproofing and loose structure of traditional ring main units are solved, achieving higher waterproof performance, structural stability and ease of operation, and improving the service life and operational safety of the equipment.

CN223927957UActive Publication Date: 2026-02-17ZHEJIANG JUHONGKAI ELECTRIC CO LTD
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Patent Information

Application Number
CN202520118484.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-19
Publication Date
2026-02-17
Estimated Expiration
2035-01-19

AI Technical Summary

Technical Problem

Traditional ring mains structures are inadequate in terms of sealing and waterproofing performance and space utilization. They are prone to gaps that allow water to seep in, affecting equipment lifespan and operational safety. Furthermore, their loose structure makes them susceptible to deformation, occupies a large amount of space, is difficult to install and arrange, and is not stable enough when facing external pressure.

Method used

The outer casing and ring network cabinet are integrated into one unit. The waterproof performance is enhanced by special bending and sealing structure. The structural stability is improved by reinforcing ribs and flip-top door panels. The number of connection points is reduced, the overall integrity and resistance to deformation are enhanced, and the operation process is simplified.

Benefits of technology

It effectively prevents moisture infiltration, extends equipment life, improves operational stability, reduces space occupation, enhances seismic resistance, simplifies equipment inspection and troubleshooting, and improves operational convenience.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model provides an integrated ring main unit structure, which adopts an integrated design of an outer box body and a ring main unit, abandons a traditional separate combination form, reduces connecting parts, and effectively improves the overall performance. The ring main unit housing accommodates electrical elements and shields electromagnetic interference. The bending part on the left side of the upper door plate is unique in design, and through the upper door plate bending metal plate extending downwards, the U-shaped reinforcing metal plate welded to the inner corner, the sealing metal plate welded to the bottom and the sealing waterproof groove formed by bending the outer side, the waterproof sealing performance is greatly improved, internal electrical elements are prevented from being affected with damp and damaged, and the service life and operation safety of equipment are guaranteed. The front upper door serves as an operation channel, is connected through a hinge and cooperates with the door plate support, the pull rod and the supporting rod to ensure stable opening and closing, and position angles of the door plate support end adjusting holes and the supporting rod support inverted-V-shaped adjusting grooves can be finely adjusted. All parts of the structure cooperate to achieve the functions of protection, operation, adjustment and the like, and good practicability and innovativeness are achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to electrical field especially relates to integrated ring net box structure. BACKGROUND

[0002] In the current electric power facility field, as the key equipment to guarantee the stable distribution and transmission of electric power, the ring net box plays a crucial role in the normal operation of the power system, and its performance directly affects the reliability and stability of the power supply. With the continuous development of the electric power industry, the scale of the power grid is continuously expanding, and the performance requirements of the power equipment are also continuously improving, and the ring net box is naturally no exception.

[0003] Most of the traditional ring net box structures adopt the form of combining a separate ring net cabinet with an outdoor box. This design gradually exposes many drawbacks in actual application. First of all, in terms of sealing and waterproof performance, since the ring net cabinet and the outdoor box are two independent parts, there are many connection parts between them and it is difficult to achieve complete close fit, and gaps are easy to appear. Under the long-term erosion of rainwater and humid environment, water can easily penetrate into the inside of the box through these gaps, causing the internal electrical components to be damaged by moisture. For example, once the humidity-sensitive electronic components are damp, short circuits, corrosion and other problems may occur, greatly affecting the service life of the equipment, and even causing power failure, endangering the operational safety of the power system.

[0004] Secondly, from the perspective of space utilization and overall strength, this conventional combined structure has shortcomings. The combination of independent ring net cabinet and outdoor box makes the overall structure loose and occupies a large space, which brings difficulties to the installation and layout of the equipment in some places with limited space, such as urban center substations, old community distribution rooms, etc. Moreover, when facing external pressure such as strong wind, earthquake and other natural disasters, as well as daily vibration, due to the lack of sufficient overall strength and stability, this structure is prone to deformation, displacement and other situations, which affects the normal operation of the equipment, and even may cause equipment damage, resulting in power interruption. SUMMARY

[0005] (I) Technical problems solved

[0006] The utility model discloses an integrated ring net box structure, solve the problem of prior art, by adopting the integral design of outer box and ring net cabinet, discard the traditional separate combination form, reduce the connecting part. Meanwhile, the shell structure is specially bent and designed, such as setting the bending part on the left side of the upper door plate, the bending part includes the upper door plate bending metal sheet extending downward, the inner corner of which is welded with U-shaped reinforcing metal sheet, the bottom is welded with sealing metal sheet, the outer side is bent with sealing waterproof groove, and further increases the sealing strip, effectively prevents moisture from penetrating, solves the problem of poor sealing and waterproof, avoids the damage of internal electrical components due to damp, and guarantees the service life and operation safety of the equipment.

[0007] Meanwhile, the integral design of outer box and ring net cabinet makes the overall structure more compact, and reduces the space occupation. The integrated structure is more integral when facing external pressure and vibration, can provide sufficient stability and anti-deformation ability, and overcomes the defects of loose conventional combination structure. The upper door plate is designed as a flip cover structure, when checking the switch state and secondary circuit state, multiple cabinet doors do not need to be opened like the traditional ring net box, the operation is more convenient and fast, is favorable for quickly and accurately performing equipment inspection and fault elimination, and greatly improves the convenience of operation and maintenance.

[0008] (II) Technical scheme

[0009] To achieve the above object, the utility model provides the following technical scheme: an integrated ring net box structure, including outdoor box shell and ring net cabinet shell embedded in the outdoor box shell, characterized in that the upper end of the outdoor box shell is equipped with an upper door plate, and the front part of the outdoor box shell is hingedly connected with a front upper door.

[0010] Preferably, the left side of the upper door plate is provided with a bending part, the bending part includes the upper door plate bending metal sheet extending downward, the inner corner of the upper door plate bending metal sheet is welded with U-shaped reinforcing metal sheet, the bottom of the U-shaped reinforcing metal sheet is welded with sealing metal sheet, and the outer side of the sealing metal sheet is bent with sealing waterproof groove.

[0011] Preferably, the upper end of the front upper door is provided with a hinge, the two sides of the front upper door are symmetrically fixed with door plate supports, the inner side of the door plate support is hingedly connected with a pull rod, and the lower end of the door plate support is hingedly connected with a support rod.

[0012] Preferably, the end of the door plate support is provided with a plurality of adjusting holes.

[0013] Preferably, the two sides of the front part of the outdoor box shell are symmetrically fixed with T-shaped seats and support rod supports.

[0014] Preferably, the end of the pull rod is hingedly connected with the T-shaped seat, and the end of the support rod is hingedly connected with the support rod support.

[0015] Preferably, the support rod support is provided with an inverted V-shaped adjusting groove.

[0016] Preferably, the inner side of the outdoor box shell is uniformly provided with multiple groups of reinforcing ribs.

[0017] Preferably, the upper end of the ring main unit shell is provided with lifting lugs on both sides.

[0018] Preferably, the sealing and waterproof groove is arranged at the lower end of the hinge.

[0019] Further, a sealing rubber strip can be added at the sealing and waterproof groove to further improve the sealing effect.

[0020] (Three) beneficial effects

[0021] The utility model discloses a kind of integrated ring network cabinet structures, this integrated ring network cabinet structure shows remarkable advantage in many aspects.In the aspect of sealing and waterproof, the special bending part design of left side of upper door plate cannot be ignored, downwardly extending upper door plate bending sheet metal, its internal angle is welded U-shaped reinforcing sheet metal, sealing sheet metal is welded at bottom, and outside is bent again to form sealing and waterproof groove, rainwater, dust etc.

[0022] From structural stability, multiple groups of reinforcing ribs evenly distributed in the inner side of the outdoor box shell enhance overall strength, and are strong in deformation resistance to external pressure and vibration;Front upper door is connected with outdoor box shell by door plate support, pull rod and support rod, and each component is hinged, and installation is stable and can also buffer external force impact.

[0023] In operation adjustment, multiple groups of adjusting holes in the end of door plate support and inverted V-shaped adjusting groove of support rod support, front upper door position and angle are conveniently adjusted by operating personnel, and normal opening and closing of door can be ensured under different environments;Flip type design of upper door plate makes equipment inspection and fault troubleshooting more efficient. DETAILED DESCRIPTION

[0024] Figure 1 It is overall schematic view of the utility model.

[0025] Figure 2 It is sectional view of upper cover of the utility model.

[0026] Figure 3 It is Figure 2 It is enlarged view of upper cover A in the utility model.

[0027] Figure 4 It is sectional view of outdoor box shell in the utility model.

[0028] Figure 5 It is Figure 4 It is enlarged view of outdoor box shell B in the utility model.

[0029] In the figure: 1 - outdoor box shell, 2 - ring main unit shell, 3 - upper door plate, 4 - front upper door, 32 - bending part, 321 - upper door plate bending sheet metal, 322 - U-shaped reinforcing sheet metal, 323 - sealing sheet metal, 324 - sealing waterproof groove, 41 - hinge, 42 - door plate support, 43 - pull rod, 44 - support rod, 421 - adjusting hole, 11 - T-shaped seat, 12 - support rod support, 121 - adjusting groove, 5 - reinforcing rib, 6 - lifting lug. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be described below with reference to the drawings in the utility model examples. Figures 1-5 The technical solutions in the embodiments of the utility model will be described below with reference to the drawings in the utility model examples.

[0031] The integrated ring main unit structure comprises an outdoor box shell 1 and a ring main unit shell 2 embedded in the indoor box shell 1, and the upper end of the outdoor box shell 1 is provided with an upper door plate 3, and the front part of the outdoor box shell 1 is hingedly provided with a front upper door 4; wherein the outdoor box shell 1 serves as the outermost protective structure of the ring main unit, and its main function is to protect the ring main unit shell 2 and other components inside in all directions. It can effectively resist various physical impacts from the outside, such as collisions that may occur during transportation or installation; at the same time, it can block the invasion of pollutants such as rainwater and dust, creating a relatively stable and clean operating environment for the internal electrical equipment, ensuring normal operation of the equipment and prolonging the service life of the equipment. The ring main unit shell 2 is the accommodation space of the core electrical elements of the ring main unit, which provides physical support for the internal electrical equipment, enabling it to be stably installed at the designated position, and can also shield the external electromagnetic interference to a certain extent, ensuring the normal signal transmission and stable operation between electrical elements, playing a key role in the overall performance and reliability of the ring main unit. The upper door plate 3 covers the upper end of the outdoor box shell 1 and is used to strengthen the protection of the upper region in the box, preventing damage to the internal equipment by foreign matter falling from above; on the other hand, the specially designed structure on the left side plays a role in waterproofing and sealing. The front upper door 4 is installed at the front part of the outdoor box shell 1 and is an important channel for operators to interact with internal equipment. When routine maintenance, repair, troubleshooting or replacement of parts of the equipment is required, the operator only needs to open the front upper door 4 to conveniently access the internal equipment, greatly improving the convenience and efficiency of operation.

[0032] The inner side of the outdoor box shell 1 is uniformly provided with multiple groups of reinforcing ribs 5. The upper end of the ring network box shell 1 is provided with lifting lugs 6 on both sides. The reinforcing ribs 5 are uniformly distributed on the inner side of the outdoor box shell 1, greatly enhancing the overall strength and rigidity of the outdoor box shell 1. When facing external physical pressure, vibration or temperature changes and other factors, the reinforcing ribs 5 can effectively disperse stress, prevent the outdoor box shell 1 from deforming, ensure that it can always provide reliable protection for the internal equipment, and protect the normal operation and service life of the ring network box. The lifting lugs 6 are provided on both sides of the upper end of the ring network box shell 1, and are components specially designed to facilitate the handling and installation of the ring network box. During transportation, the ring network box can be easily lifted and placed in the designated position through the connection of lifting equipment and the lifting lugs 6, improving the handling efficiency and reducing the labor cost and labor intensity.

[0033] The left side of the upper door plate 3 is provided with a bending part 32, which includes an upper door plate bending sheet metal 321 extending downward, a U-shaped reinforcing sheet metal 322 is welded at the inner corner of the upper door plate bending sheet metal 321, a sealing sheet metal 323 is welded at the bottom of the U-shaped reinforcing sheet metal 322, and a sealing waterproof groove 324 is bent on the outer side of the sealing sheet metal 323.

[0034] The bending part 32 is located on the left side of the upper door plate 3, and the structure strength and waterproof ability are improved through unique structure. The special shape design and structure layout enhance the rigidity of the upper door plate 3 at this part, which is not easy to be deformed by external force. At the same time, it provides a basis for a series of subsequent waterproof related structure design, and is an important part of the whole waterproof system. The upper door plate bending sheet metal 321 is the key component of the bending part 32, which provides a suitable basic structure for the installation of the subsequent U-shaped reinforcing sheet metal 322 and sealing sheet metal 323 through special bending modeling. This bending design not only increases the material thickness and structural complexity of this part, thereby improving the overall strength of the upper door plate 3, but also creates conditions for forming an effective waterproof sealing structure. The U-shaped reinforcing sheet metal 322 is welded at the inner corner of the upper door plate bending sheet metal 321, and the U-shaped structure shape gives the bending part 32 stronger anti-deformation ability. When facing external force impact or long-term natural environment erosion, the U-shaped reinforcing sheet metal 322 can effectively disperse stress and prevent the upper door plate bending sheet metal 321 from deforming, thereby ensuring the structural integrity and stability of the whole upper door plate 3, and further ensuring the waterproof and sealing performance. The sealing sheet metal 323 is welded at the bottom of the U-shaped reinforcing sheet metal 322, which cooperates with the U-shaped reinforcing sheet metal 322 and the upper door plate bending sheet metal 321 to form an effective waterproof barrier. The main function of the sealing sheet metal 323 is to block the rainwater from penetrating into the box body from the left side gap of the upper door plate 3, and its material and installation method are carefully designed to ensure good sealing performance. The sealing waterproof groove 324 is formed by the outer bending of the sealing sheet metal 323, which is the last line of defense of the whole waterproof structure and the key waterproof component. Its main function is to guide the rainwater along a specific path through the special groove design, without directly penetrating into the box body. Moreover, the sealing waterproof groove 324 is set at the lower end of the hinge 41, which can effectively prevent rainwater from entering the box body along the gap of the hinge 41, further improving the waterproof performance of the whole ring net box.

[0035] The upper end of the front upper door 4 is provided with a hinge 41, and the two sides of the front upper door 4 are symmetrically fixed with door plate supports 42. The inner side of the door plate support 42 is hinged with a pull rod 43, and the lower end of the door plate support 42 is hinged with a supporting rod 44. The end of the door plate support 42 is provided with a plurality of adjusting holes 421.

[0036] The hinge 41 connects the front upper door 4 and the outdoor cabinet shell 1, and is a component for realizing the opening and closing action of the front upper door 4. The door plate support 42 is symmetrically fixed on both sides of the front upper door 4. Firstly, it provides reliable connection points for the pull rod 43 and the support rod 44, so that these two components can effectively play a supporting and auxiliary role. Secondly, the door plate support 42 itself plays a reinforcing and supporting role for the front upper door 4, enhancing the structural strength of the front upper door 4, so that it is not easy to deform in the frequent opening and closing process. The pull rod 43 is hingedly connected to the inner side of the door plate support 42 at one end and to the T-shaped seat 11 at the other end. During the use of the ring main unit, the pull rod 43 mainly assists in supporting the front upper door 4, especially when the front upper door 4 is opened, it can play a certain traction role, so that the front upper door 4 can be smoothly opened to the appropriate position and kept in that position, facilitating the operation of the operator. At the same time, the pull rod 43 can also limit the swing range of the front upper door 4 to a certain extent, play a positioning role, and ensure the stability of the front upper door 4 in the opening and closing process. The support rod 44 is hingedly connected to the lower end of the door plate support 42 at one end and to the support rod support 12 at the other end. Its main role is to provide stable support for the front upper door 4 in the open state, so that the front upper door 4 can maintain a fixed angle, facilitating the operator to carry out equipment maintenance, repair and other work. The existence of the support rod 44 ensures that the front upper door 4 will not randomly sway or close after being opened due to its own gravity or external wind force and other factors, ensuring the safety and convenience of operation. The adjusting hole 421 is arranged at the end of the door plate support 42, providing flexibility for the installation and debugging of the entire ring main unit. By adjusting the connection position of the pull rod 43 and the support rod 44 with the adjusting hole 421, the angle and position of the front upper door 4 can be fine-tuned according to the actual installation environment and use requirements, so that the front upper door 4 can better adapt to different working conditions, ensuring its normal operation and the convenience of operation.

[0037] The T-shaped seat 11 and the support rod bracket 12 are symmetrically fixed on the front of the outdoor box shell 1. The support rod bracket 12 is provided with an inverted V-shaped adjusting groove 121. The end of the pull rod 43 is hinged with the T-shaped seat 11, and the end of the support rod 44 is hinged with the support rod bracket 12. The T-shaped seat 11 is symmetrically fixed on the front of the outdoor box shell 1, mainly providing a hinge point for the pull rod 43. It can ensure the stable connection between the pull rod 43 and the outdoor box shell 1, so that the pull rod 43 can effectively play its supporting and auxiliary role, and ensure the normal opening and stable support of the front upper door 4. The support rod bracket 12 is also symmetrically fixed on the front of the outdoor box shell 1, and its main function is to provide a hinge point for the support rod 44. In addition, the inverted V-shaped adjusting groove 121 provided on the support rod bracket 12 provides a convenient condition for adjusting the position and angle of the support rod 44. By adjusting the connection position of the support rod 44 in the adjusting groove 121, the supporting effect of the front upper door 4 can be further optimized, so that it can maintain a stable open state under different use conditions. The adjusting groove 121 is in inverted V-shaped on the support rod bracket 12, which is a structure for precise adjustment of the support rod 44. The operator can move the end connection position of the support rod 44 in the adjusting groove 121 according to the actual needs, so as to fine-tune the angle and position of the support rod 44. This fine-tuning function can make the support rod 44 better adapt to different opening states of the front upper door 4 and external environmental conditions, ensure that the front upper door 4 can be stably supported after opening, and improve the use performance and operation convenience of the entire ring net box.

[0038] Working principle:

[0039] The outdoor box shell 1 is the outermost protection, resisting physical impact, rain, dust, etc. from all directions, providing a stable environment for the internal equipment. The reinforcing ribs 5 on the inner side enhance the overall strength, disperse stress, and prevent deformation. The ring net cabinet shell 2 contains core electrical components, provides physical support and shields electromagnetic interference, and ensures the normal operation of electrical components. The upper door plate 3 covers the upper end of the outdoor box shell 1, and the bending part 32 on the left side of the upper door plate cooperates with the upper door plate bending sheet metal 321, the U-shaped reinforcing sheet metal 322, the sealing sheet metal 323, and the sealing waterproof groove 324 to realize waterproof and sealing, and block rainwater from entering from the left side gap.

[0040] The front upper door 4 is a passageway for the operator to interact with the internal equipment. It is connected with the outdoor box shell 1 through a hinge 41, and can realize opening and closing actions. A door plate support 42 is symmetrically fixed on both sides of the front upper door 4, and provides a connecting point for a pull rod 43 and a supporting rod 44, and at the same time, strengthens the structural strength of the front upper door 4. When it is necessary to open the front upper door 4, one end of the pull rod 43 is hingedly connected with the inner side of the door plate support 42, and the other end is hingedly connected with the T-shaped seat 11, which plays a role of traction and positioning, so that the front upper door 4 is stably opened and kept in a proper position. One end of the supporting rod 44 is hingedly connected with the lower end of the door plate support 42, and a bolt is arranged at the connecting position, so as to facilitate disassembly. The other end is hingedly connected with the supporting rod support 12, and in the opened state, the supporting rod 44 provides stable supporting force for the front upper door 4, so as to prevent the front upper door 4 from shaking or closing due to its own gravity or external wind force and other factors. The adjusting hole 421 at the end of the door plate support 42 and the inverted V-shaped adjusting groove 121 on the supporting rod support 12 can be used to finely adjust the angle and position of the front upper door 4 according to the actual installation environment and use requirements, so as to ensure normal operation and operation convenience.

[0041] In addition, the lifting lugs 6 on both sides of the upper end of the ring net box shell 1 facilitate hoisting during transportation and installation, and improve the transportation and installation efficiency. The entire ring net box structure realizes the functions of protection, operation and adjustment through the cooperation of these parts, and guarantees the stable operation of the power equipment.

[0042] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An integrated ring network enclosure structure, comprising an outdoor enclosure shell (1) and a ring network cabinet shell (2) embedded inside the outdoor enclosure shell (1), characterized in that, The upper end of the outdoor box shell (1) is provided with an upper door panel (3), and the front upper door (4) is hinged to the front of the outdoor box shell (1). The upper door panel (3) has a bending part (32) on the left side. The bending part (32) includes an upper door panel bending sheet metal (321) extending downward. A U-shaped reinforcing sheet metal (322) is welded at the inner corner of the upper door panel bending sheet metal (321). A sealing sheet metal (323) is welded at the bottom of the U-shaped reinforcing sheet metal (322). A sealing waterproof groove (324) is bent on the outer side of the sealing sheet metal (323).

2. The integrated ring network box structure according to claim 1, characterized in that, The upper end of the front upper door (4) is provided with a hinge (41), and door panel brackets (42) are symmetrically fixed on both sides of the front upper door (4). A pull rod (43) is hinged to the inner side of the door panel bracket (42), and a support rod (44) is hinged to the lower end of the door panel bracket (42).

3. The integrated ring network box structure according to claim 2, characterized in that, The end of the door panel bracket (42) is provided with multiple sets of adjustment holes (421).

4. The integrated ring network box structure according to claim 1, characterized in that, The front sides of the outdoor housing (1) are symmetrically fixed with T-shaped seats (11) and support rod brackets (12).

5. The integrated ring network box structure according to claim 2, characterized in that, The end of the pull rod (43) is hinged to the T-shaped seat (11), and the end of the support rod (44) is hinged to the support rod bracket (12).

6. The integrated ring network box structure according to claim 4, characterized in that, The support rod bracket (12) is provided with an inverted V-shaped adjustment groove (121).

7. The integrated ring network box structure according to claim 1, characterized in that, Multiple sets of reinforcing ribs (5) are evenly arranged on the inner side of the outdoor housing (1).

8. The integrated ring network box structure according to claim 1, characterized in that, The upper two sides of the ring main unit housing (2) are provided with lifting lugs (6).

9. An integrated ring network box structure according to claim 1, characterized in that, The sealing and waterproof groove (324) is located at the lower end of the hinge (41).