Substation box body

Abstract

The invention relates to the technical field of transformer substation cabinets, and discloses a transformer substation box body which comprises an outer box. The inner box is arranged in the outer box, and an opening is formed in the front end of the inner box; the box door is arranged on the front side of the outer box and used for opening and closing the opening; a plurality of coaxial and annular sealing bosses are arranged on the end face, facing the opening, of the inner box, first sealing strips used for being sealed with the box door are arranged on the sealing bosses, a sealing groove is formed between every two adjacent sealing bosses, and second sealing strips used for being sealed with the box door are arranged in the sealing grooves; and the dehumidification system is arranged in the inner box and used for dehumidifying the interior of the inner box. The electrical equipment box has the beneficial effects that the electrical equipment box has good sealing performance, moist air is prevented from entering the box body, meanwhile, the interior of the box body can be dehumidified, condensation is prevented from being formed in the box body, safe operation of electrical equipment is ensured, and the service life of the electrical equipment is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of transformer substation cabinets, and in particular to a transformer substation cabinet. Background Art

[0002] The existing substation box has poor sealing performance. Under high temperature and high humidity conditions, humid air outside the substation box can easily enter the box and form condensation inside the box, making the interior of the box humid, which can easily cause short circuits in electrical equipment, aggravate the corrosion of electronic components, shorten the service life of electrical equipment, and seriously affect the safe operation of electrical equipment. Summary of the invention

[0003] The purpose of the present invention is to provide a transformer substation box with good sealing performance to prevent humid air from entering the box, and at the same time dehumidify the inside of the box to avoid condensation inside the box, thereby ensuring the safe operation of electrical equipment and improving the service life of electrical equipment.

[0004] In order to achieve the above object, the present invention provides a substation box, comprising

[0005] outer box;

[0006] An inner box, the inner box is arranged in the outer box, and an opening is arranged at the front end of the inner box;

[0007] A box door is arranged at the front side of the outer box and is used to open and close the opening; a plurality of coaxial and annular sealing bosses are arranged on the end surface of the inner box facing the opening, a first sealing strip for sealing with the box door is arranged on each of the plurality of sealing bosses, a sealing groove is arranged between adjacent sealing bosses, and a second sealing strip for sealing with the box door is arranged in the sealing groove;

[0008] The dehumidification system is arranged in the inner box and is used for dehumidifying the interior of the inner box.

[0009] Furthermore, the dehumidification system includes a dehumidifier, a drain pipe, a connector, a one-way valve, a ball valve and a wall pipe which are arranged in the inner box and connected in sequence. The wall pipe passes through the inner box and the outer box in sequence and extends to the outside of the outer box.

[0010] Furthermore, the box door and the outer box are connected by a hinge, the box door is provided with a locking assembly for connecting with the outer box, the locking assembly comprises a door lock, a locking rod unit, and a locking block, the locking blocks are evenly distributed around the opening of the outer box, a locking groove is formed on the locking block, a locking portion corresponding to the locking groove is formed on the locking rod unit, the locking rod unit is sequentially inserted into the locking groove, and both ends of the locking rod unit are respectively connected to the lock core of the door lock;

[0011] Among them, the lock core of the door lock rotates, the locking part of the locking rod unit is stuck in the locking groove, and the box door is closed; the lock core of the door lock rotates, the locking part of the locking rod unit slides out of the locking groove, and the box door is opened.

[0012] Furthermore, the locking rod unit includes a transmission locking rod, a connecting soft rope, a pulley, and a guide block. A plurality of the transmission locking rods are arranged on the inner end surface of the box door, each of the transmission locking rods is provided with the locking portion, the pulleys are provided at the four peripheral corners of the inner end surface of the box door, the connecting soft rope is provided between adjacent transmission locking rods close to the pulley, the connecting soft rope is clamped in the limiting groove of the pulley, the guide blocks are evenly distributed on the inner end surface of the box door, and the guide blocks are provided with a guide for guiding the transmission locking rod when it moves.

[0013] Furthermore, the outer box includes a base, a frame, a first closing plate, a second closing plate, and a cover plate. The frame is fixedly arranged on the base, the inner box is arranged in the frame, the box door is arranged on the front side of the frame, the first closing plate is arranged on the rear side of the frame, the second closing plate is symmetrically arranged on the left and right sides of the frame, the cover plate is arranged on the top of the frame, and the box door is provided with a perspective window.

[0014] Furthermore, a hook is provided on the end surface of the frame facing the first sealing plate in the vertical direction, a through hole corresponding to the hook is opened on the first sealing plate, and the first sealing plate and the frame are fixedly connected by screws.

[0015] Furthermore, the box door includes a door panel, a lining panel, and a reinforcing plate. A lining panel is provided on the inner side of the door panel facing the opening. The lining panel and the first sealing strip and the second sealing strip are squeezed and sealed. The reinforcing plate is provided between the door panel and the lining panel.

[0016] Furthermore, the number of the sealing bosses is at least 2.

[0017] Furthermore, a partition is provided in the inner box, and the partition divides the inner box into a first cavity and a second cavity, and the dehumidification system is arranged in the first cavity.

[0018] Furthermore, the inner box is provided with a waterproof breathable valve.

[0019] Compared with the prior art, the substation box of the embodiment of the present invention has the following beneficial effects: an outer box and an inner box are provided, the inner box is arranged inside the outer box, and is used to store electrical equipment, so that the inner box is isolated from the external humid air, and at the same time, a plurality of annular sealing bosses are provided on the end surface of the inner box facing the opening, a first sealing strip is provided on the sealing bosses, a sealing groove is provided between adjacent sealing bosses, and a second sealing strip is provided in the sealing groove, and when the box door is closed, multiple seals are achieved between the inner box and the box door, and the sealing effect is good, so that humid air is prevented from entering the box. At the same time, a dehumidification system is arranged in the inner box, which is used to dehumidify the interior of the inner box, prevent condensation from forming inside the box, ensure the safe operation of the electrical equipment, and increase the service life of the electrical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a transformer substation box according to an embodiment of the present invention;

[0021] Figure 2 It is a structural schematic diagram of a dehumidification system for a transformer substation box according to an embodiment of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the inner box of the transformer substation box according to an embodiment of the present invention;

[0023] Figure 4 is a cross-sectional view of a transformer substation box according to an embodiment of the present invention;

[0024] Figure 5 yes Figure 4 A partial enlarged view of the middle A;

[0025] Figure 6 It is a structural schematic diagram of the frame of the substation box body according to an embodiment of the present invention;

[0026] Figure 7 It is a structural schematic diagram of a first sealing plate of a transformer substation box according to an embodiment of the present invention;

[0027] Figure 8 It is a structural schematic diagram of a locking assembly of a transformer substation box according to an embodiment of the present invention;

[0028] Fig. 9 2 is a schematic structural diagram of a transmission lock rod of a transformer substation box according to an embodiment of the present invention;

[0029] Fig.10 It is a structural schematic diagram of a locking block of a transformer substation box according to an embodiment of the present invention.

[0030] In the figure, 1, outer box; 11, base; 12, frame; 121, hook; 13, first sealing plate; 131, through hole; 14, second sealing plate; 15, cover plate;

[0031] 2. Inner box; 21. Opening; 22. Partition; 23. First cavity; 24. Second cavity; 25. Sealing boss; 26. First sealing strip; 27. Sealing groove; 28. Second sealing strip;

[0032] 3. Box door; 31. Door panel; 32. Lining board; 321. Extrusion boss; 33. Reinforcement board; 34. Perspective window;

[0033] 4. Dehumidification system; 41. Dehumidifier; 42. Drain pipe; 43. Connector; 44. Check valve; 45. Ball valve; 46. Wall pipe;

[0034] 5. Loose-leaf;

[0035] 6. Locking assembly; 61. Door lock; 62. Locking rod unit; 621. Transmission locking rod; 6211. Locking part; 622. Connecting soft rope; 623. Pulley; 624. Guide block; 63. Locking block; 631. Locking groove. DETAILED DESCRIPTION

[0036] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. used in the present invention to indicate the orientation or positional relationship are based on the positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred devices and elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In the description of the present invention, it should be understood that the present invention uses the terms "first", "second", etc. to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0039] See also Figures 1 to 10A transformer substation box according to a preferred embodiment of the present invention comprises an outer box 1, an inner box 2, a box door 3 and a dehumidification system 4, wherein the outer box 1 is in direct contact with the external environment, the inner box 2 is arranged in the outer box 1, and an opening 21 is arranged at the front end of the inner box 2 for placing electrical equipment. In order to facilitate opening the inner box 2, the box door 3 is arranged at the front side of the outer box 1 for opening and closing the opening 21. In order to improve the sealing effect between the inner box 2 and the box door 3, a plurality of coaxial and annular sealing bosses 25 are arranged on one end face of the inner box 2 facing the opening 21. Among them, a plurality of sealing bosses 25 are provided with a first sealing strip 26 for sealing with the box door 3, and a sealing groove 27 is provided between adjacent sealing bosses 25, and a second sealing strip 28 for sealing with the box door 3 is provided in the sealing groove 27. When the box door 3 is closed, the box door 3 squeezes the first sealing strip 26 and the second sealing strip 28 to achieve sealing with the inner box 2. In this embodiment, the number of sealing bosses 25 is at least 2, that is, the number of first sealing strips 26 is 2, and the number of second sealing strips 28 is 1, forming at least a triple seal, with a good sealing effect, which can be adjusted according to actual sealing requirements. In order to avoid condensation inside the inner box 2, a dehumidification system 4 is provided in the inner box 2 for dehumidifying the inside of the inner box 2.

[0040] In this embodiment, in order to improve the sealing effect of the inner box 2, refer to Figure 5 The inner box 2 is formed by bending a sheet metal, and the side walls of the sheet metal facing the opening 21 are bent to form a sealing boss 25, which reduces the weld seam of the box body and reduces the possibility of protection failure caused by welding defects. After the welding is completed inward, the quality of the weld seam is first detected by means of penetrant testing, and the sealing of the inner box is detected by immersion in water. After the sealing of the inner box 2 is qualified, it is fixedly connected to the outer box 1. In this embodiment, in order to improve the stability of the connection between the inner box 2 and the outer box 1, the inner box 2 and the outer box 1 are fixed by welding.

[0041] Further, in order to facilitate dehumidification of the inner box 2 and prevent external water vapor from entering the inner box 2, refer to Figure 2The dehumidification system 4 includes a dehumidifier 41, a drain pipe 42, a connector 43, a one-way valve 44, a ball valve 45 and a through-wall pipe 46 which are arranged in the inner box 2 and are connected in sequence. The through-wall pipe 46 passes through the inner box 2 and the outer box 1 in sequence and extends to the outside of the outer box 1. The one-way valve 44 and the ball valve 45 are arranged to prevent the water outside the box from entering the inner box 2 through the through-wall pipe 46. Specifically, the ball valve 45 is in a closed state during the transportation of the box, when there is no power on the site, and when the dehumidifier 41 is not running, so as to ensure that the inside of the inner box 2 is in a sealed state. After the power is turned on on the site, the dehumidifier 41 starts to work, and the condensed water formed inside the dehumidifier 41 is discharged out of the box through the drain pipe 42, the connector 43, the one-way valve 44, the ball valve 45 and the through-wall pipe 46 in sequence. The one-way valve 44 can be set to open at a fixed time or at a certain pressure value to ensure that the condensed water can be discharged out of the box in time. Since the one-way valve 44 can withstand a relatively large reverse pressure, even in an extreme environment such as flooding, water outside the box cannot enter the inside of the box, so that the box has a relatively high sealing level.

[0042] Furthermore, in order to facilitate the connection between the box door 3 and the outer box 1, the box door 3 and the outer box 1 are connected by a hinge 5. At the same time, in order to facilitate the box door 3 to squeeze and seal the first sealing strip 26 and the second sealing strip 28, refer to Figure 5 , Figure 8 , Fig. 9 The box door 3 is provided with a locking assembly 6 for connecting with the outer box 1. Specifically, the locking assembly 6 includes a door lock 61, a locking rod unit 62, and a locking block 63. The locking blocks 63 are evenly distributed around the opening 21 of the outer box 1. A locking groove 631 is provided on the locking block 63. The locking rod unit is provided with a locking portion 6211 corresponding to the locking groove 631. The locking rod unit 62 is sequentially inserted into the locking groove 631, and the two ends of the locking rod unit 62 are respectively connected to the lock core of the door lock 61; wherein, the lock core of the door lock 61 rotates, the locking portion 6211 of the locking rod unit 62 is stuck in the locking groove 631, and the box door 3 is closed; the lock core of the door lock 61 rotates, the locking portion 6211 of the locking rod unit 62 slides out of the locking groove 631, and the box door 3 is opened.

[0043] Furthermore, in order to facilitate the design of the locking rod unit 62, in this embodiment, the locking rod unit 62 includes a transmission locking rod 621, a connecting soft rope 622, a pulley 623, and a guide block 624. Figure 8 , Fig. 9, multiple transmission lock rods 621 are arranged on the inner end surface of the box door 3, each transmission lock rod 621 is provided with a locking portion 6211, pulleys 623 are provided at the four peripheral corners of the inner end surface of the box door 3, and connecting soft ropes 622 are provided between adjacent transmission lock rods 621 close to the pulley 623, and the connecting soft ropes 622 are clamped in the limiting groove of the pulley 623, and the guide blocks 624 are evenly distributed on the inner end surface of the box door 3. The guide blocks 624 are provided with a guide for the transmission lock rod 621 when it moves, that is, the lock core of the door lock 61 rotates, and the multiple transmission lock rods 621 move synchronously in the vertical direction or the horizontal direction respectively, the connecting soft rope 622 can slide around the pulley 623 and undergo elastic deformation, the locking portion 6211 is clamped in the locking groove 631, and the box door 3 is closed.

[0044] Furthermore, in order to facilitate the first sealing strip 26 and the second sealing strip 28 to be evenly stressed and to achieve a predetermined compression amount and a better sealing effect, in this embodiment, refer to Fig.10 The locking part 6211 adopts a roller, and the two ends of the locking groove 631 are provided with guiding inclined surfaces, and the middle part is provided with an arc-shaped limiting groove. When the box door 3 is closed, the roller rolls along the guiding inclined surface, and the transmission lock rod 621 moves toward the opening 21 and stretches the connecting soft rope 622. The distance between the box door 3 and the opening 21 gradually decreases. When the roller moves along the guiding inclined surface, the transmission lock rod 621 moves toward the opening 21 and stretches the connecting soft rope 622. Fig.10 After rolling to the arc-shaped limiting groove in the direction of the middle arrow, the door 3 is closed, so that the first sealing strip 26 and the second sealing strip 28 reach a predetermined compression amount.

[0045] Furthermore, in order to facilitate the design of the outer box 1, refer to Figure 1 The outer box 1 includes a base 11, a frame 12, a first sealing plate 13, a second sealing plate 14, and a cover plate 15. The base 11 is fixed with the frame 12, wherein the inner box 2 is arranged in the frame 12, the front side of the frame 12 is provided with a box door 3, the rear side of the frame 12 is provided with the first sealing plate 13, the left and right sides of the frame 12 are symmetrically provided with second sealing plates 14, and the top of the frame 12 is provided with a cover plate 15, wherein the first sealing plate 13, the second sealing plate 14 and the cover plate 15 are connected to the frame 12 by rivets to avoid secondary processing of the inner box 2. At the same time, in order to facilitate the observation of the working status of the electrical equipment inside the inner box 2, a perspective window 34 is provided on the box door 3.

[0046] Furthermore, in order to improve the overall structural strength of the door 3 and prevent the door 3 from deforming, refer to Figure 5The box door 3 includes a door panel 31, a lining panel 32, and a reinforcing panel 33, wherein a lining panel 32 is provided on the inner side of the door panel 31 facing the opening 21, and the lining panel 32 and the first sealing strip 26 and the second sealing strip 28 are squeezed and sealed. The lining panel 32 is also provided with an extrusion boss 321 corresponding to the second sealing strip 28. A reinforcing panel 33 is provided between the door panel 31 and the lining panel 32 to prevent the door panel 31 and the lining panel 32 from being deformed due to multiple squeezing of the sealing strips. In the present embodiment, the reinforcing panel 33 is U-shaped.

[0047] Furthermore, in order to prevent the first sealing plate 13 and the frame 12 from moving in the vertical direction after installation, and to facilitate the positioning of the first sealing plate 13 and the frame 12 during installation, refer to Figure 6 , Figure 7 A hook 121 is provided on the end surface of the frame 12 facing the first sealing plate 13 in the vertical direction. A through hole 131 corresponding to the hook 121 is opened on the first sealing plate 13. The first sealing plate 13 and the frame 12 are fixedly connected by screws.

[0048] Furthermore, in order to facilitate the arrangement of the electrical equipment in the inner box 2 and to facilitate the separation of the dehumidification system 4 and the electrical equipment for subsequent maintenance of the electrical equipment, in this embodiment, refer to Figure 2 , a partition 22 is provided in the inner box 2, and the sealing plate separates the inner box 2 into a first cavity 23 and a second cavity 24, and the dehumidification system 4 is provided in the first cavity 23. Furthermore, in order to keep the air pressure inside the box and outside the box balanced, a waterproof breathable valve with a sealing level of IP67 or above is also provided inside the inner box 2. At the same time, in order to facilitate the wiring of the electrical equipment and the outside, a threading connector with a sealing level of IP67 or above is also provided at the lower part of the inner box 2, which is convenient for threading, or a female plug-in for wiring with the outside is provided in the inner box 2, one end of the female plug-in is connected to the electrical equipment of the inner box 2, and the other end is provided outside the outer box 1, and the sealing level of the female plug-in installed with the inner box 2 is above IP67. The end of the female plug-in provided at the outer box 1 is provided with a sealing cover, and the external wiring harness can be connected to the male plug-in directly connected to the female plug-in.

[0049] In summary, the embodiment of the present invention provides a substation box, which is provided with an outer box 1 and an inner box 2. The inner box 2 is arranged in the outer box 1, and is used to store electrical equipment, so that the inner box 2 is isolated from the external humid air. At the same time, the end face of the inner box 2 facing the opening 21 is provided with a plurality of annular sealing bosses 25, and the sealing bosses 25 are provided with a first sealing strip 26. A sealing groove 27 is provided between adjacent sealing bosses 25, and a second sealing strip 28 is provided in the sealing groove 27. When the box door 3 is closed, multiple seals are achieved between the inner box 2 and the box door 3, and the sealing effect is good, so as to prevent humid air from entering the box. At the same time, the dehumidification system 4 is arranged in the inner box 2, and is used to dehumidify the interior of the inner box 2, so as to prevent condensation from forming inside the box, ensure the safe operation of the electrical equipment, and improve the service life of the electrical equipment.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A substation box, characterized in that: include outer box; An inner box, the inner box is arranged in the outer box, and an opening is provided at the front end of the inner box; A box door is arranged at the front side of the outer box and is used to open and close the opening; a plurality of coaxial and annular sealing bosses are arranged on the end surface of the inner box facing the opening, a first sealing strip for sealing with the box door is arranged on each of the plurality of sealing bosses, a sealing groove is arranged between adjacent sealing bosses, and a second sealing strip for sealing with the box door is arranged in the sealing groove; A dehumidification system is provided in the inner box and is used for dehumidifying the interior of the inner box.

2. The transformer substation box according to claim 1, characterized in that: The dehumidification system includes a dehumidifier, a drain pipe, a connector, a one-way valve, a ball valve and a wall-penetrating pipe which are arranged in the inner box and are connected in sequence. The wall-penetrating pipe passes through the inner box and the outer box in sequence and extends to the outside of the outer box.

3. The transformer substation box according to claim 1, characterized in that: The box door and the outer box are connected by hinges, the box door is provided with a locking assembly for connecting with the outer box, the locking assembly comprises a door lock, a locking rod unit, and a locking block, the locking blocks are evenly distributed around the opening of the outer box, a locking groove is provided on the locking block, a locking portion corresponding to the locking groove is provided on the locking rod unit, the locking rod unit is sequentially inserted into the locking groove, and both ends of the locking rod unit are respectively connected to the lock core of the door lock; Among them, the lock core of the door lock rotates, the locking part of the locking rod unit is stuck in the locking groove, and the box door is closed; the lock core of the door lock rotates, the locking part of the locking rod unit slides out of the locking groove, and the box door is opened.

4. The transformer substation box according to claim 3, characterized in that: The locking rod unit includes a transmission locking rod, a connecting soft rope, a pulley, and a guide block. A plurality of the transmission locking rods are arranged on the inner end surface of the box door, each of the transmission locking rods is provided with the locking portion, the pulleys are provided at the four peripheral corners of the inner end surface of the box door, the connecting soft rope is provided between adjacent transmission locking rods close to the pulley, the connecting soft rope is clamped in the limiting groove of the pulley, the guide blocks are evenly distributed on the inner end surface of the box door, and the guide blocks are provided with a guide for guiding the transmission locking rod when it moves.

5. The transformer substation box according to claim 1, characterized in that: The outer box includes a base, a frame, a first closing plate, a second closing plate, and a cover plate. The frame is fixedly arranged on the base, the inner box is arranged in the frame, the box door is arranged on the front side of the frame, the first closing plate is arranged on the rear side of the frame, the second closing plates are symmetrically arranged on the left and right sides of the frame, the cover plate is arranged on the top of the frame, and the box door is provided with a perspective window.

6. The transformer substation box according to claim 5, characterized in that: The end surface of the frame facing the first sealing plate is provided with a hook in the vertical direction, the first sealing plate is provided with a through hole corresponding to the hook, and the first sealing plate and the frame are fixedly connected by screws.

7. The transformer substation box according to claim 1, characterized in that: The box door includes a door panel, a lining panel, and a reinforcing panel. A lining panel is provided on the inner side of the door panel facing the opening. The lining panel and the first sealing strip and the second sealing strip are squeezed and sealed. The reinforcing panel is provided between the door panel and the lining panel.

8. The transformer substation box according to claim 1, characterized in that: The number of the sealing bosses is at least 2.

9. The transformer substation box according to claim 1, characterized in that: A partition is provided in the inner box, and the partition divides the inner box into a first cavity and a second cavity. The dehumidification system is arranged in the first cavity.

10. The transformer substation box according to claim 1, characterized in that: The inner box is provided with a waterproof and breathable valve.

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