Waterproof and moisture-proof box transformer

Abstract

The application discloses a waterproof and moisture-proof box transformer, which comprises a box body, a transformer extension box and heat dissipation fins, the inside of the box body is provided with a high-pressure cabin, a low-pressure cabin and a capacitor cabin, the high-pressure cabin and the low-pressure cabin are both equipped with a metal door which is opened in two, a high-low pressure cabin partition plate is arranged between the high-pressure cabin and the low-pressure cabin, a low-pressure cabin partition plate is arranged between the low-pressure cabin and the capacitor cabin, the inner top end of the high-pressure cabin, the low-pressure cabin and the capacitor cabin is provided with an upper corner plate, the inside of the high-pressure cabin, the low-pressure cabin and the capacitor cabin is further provided with a bottom sealing structure, a lower corner plate and a mounting beam, the bottom sealing structure is a spliced structure and comprises a bottom sealing support, a glass plate, a stress square tube and a thick insulation plate, the glass plate is sealed and fixed by glue after being assembled; the glass plate, the stress square tube and the thick insulation plate are assembled on the bottom sealing support from bottom to top, the glass plate is used for waterproof and moisture-proof, the stress square tube strengthens the stability of the bottom sealing support, and the thick insulation plate is used for preventing electric leakage, so that the structural stability and the waterproof effect of the box transformer can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power equipment, in particular to a waterproof and moisture-proof box transformer. BACKGROUND

[0002] The box transformer generally adopts a structure independent of each unit, and is respectively provided with a transformer chamber, a high-voltage switch chamber and a low-voltage switch chamber, which are connected into a complete power supply system through wires.

[0003] Since the box transformer is installed outdoors, it is greatly affected by external factors, especially by external moisture. Once the humidity in the box transformer exceeds a certain value, the transformer is prone to electric leakage or short circuit. In order to adjust the humidity in the box transformer, natural ventilation and forced ventilation are usually adopted. If the natural ventilation is adopted, the air inlet is increased to increase the air flow to better adjust the humidity in the box, but dust is easily introduced, and if a lot of dust sticks to the transformer, the heat dissipation of the transformer is affected, and the electrodes also have a discharge phenomenon, which also affects the normal work of the box transformer. A box transformer with a moisture-proof structure is disclosed in Chinese Patent No. ZL202122657269.5, which comprises a main box, a moisture-proof seat and a ventilation mechanism. The main box comprises a box shell and a box cover, the box cover is uniformly arranged on the front end face of the box shell, and the box cover is rotatably connected with the box shell. The moisture-proof seat is installed on the lower end face of the box shell, and the moisture-proof seat is fixedly connected with the box shell. The ventilation mechanism is installed on the rear end face of the box shell, and the ventilation mechanism is fixedly connected with the box shell. When the user needs to use it, the moisture-proof seat can be stably installed on the lower end of the box shell, and the ventilation mechanism is installed on the rear end of the box shell to realize real-time ventilation of the inside of the box shell, so as to avoid the accumulation of heat in the box shell and the occurrence of moisture. Not only does it increase the complexity of the structure, but also the moisture problem cannot be solved once the ventilation mechanism fails. A rain and moisture-proof outdoor box transformer is disclosed in Chinese Patent No. ZL202120897029.X. By designing the rain shield and the connecting plate, the rain shield can guide the flow of rainwater to achieve the purpose of preventing rain. The rain shield is easy to disassemble, and the box body can be lifted to a certain height through the action of the supporting block and the supporting seat to prevent rainwater from entering the box body through the bottom of the box body. By designing the drying box, the drying box is placed with a bagged drying agent, which can dry the inside of the box. Through the action of the through hole, the contact area of the gas and the drying agent is increased, and the drying effect is improved. The drying box is easy to take out of the box, making it easy to replace the drying agent. However, the box body needs to be lifted to a certain height to prevent rain, which increases the complexity of the operation. SUMMARY

[0004] Therefore, the present application aims to provide a box transformer which can improve the structural stability and waterproof effect, and is simple and practical to operate.

[0005] To solve the above technical problems, the technical scheme of the present application is:

[0006] The water-proof and moisture-proof box transformer comprises a box body, a transformer extension box assembled at the back of the box body, and heat dissipation fins assembled at the back of the transformer extension box, the inside of the box body is provided with a high-pressure cabin, a low-pressure cabin and a capacitor cabin, the high-pressure cabin and the low-pressure cabin are both provided with a metal door with a split, a high-low pressure cabin partition plate is arranged between the high-pressure cabin and the low-pressure cabin, a low-pressure cabin partition plate is arranged between the low-pressure cabin and the capacitor cabin, an upper corner plate fixed to the inner top of the box body is arranged at the inner top of the high-pressure cabin, the low-pressure cabin and the capacitor cabin, a bottom sealing structure arranged at the lower end of the high-pressure cabin, the low-pressure cabin and the capacitor cabin, a lower corner plate for pressing the bottom sealing structure and welded and fixed at the corner of the high-pressure cabin and the capacitor cabin, and a mounting beam arranged in the inside of the high-pressure cabin, the low-pressure cabin and the capacitor cabin, the bottom sealing structure is a spliced structure comprising a bottom sealing leg, a glass plate assembled below the bottom sealing leg, a force bearing square tube assembled at the middle of the bottom sealing leg, and a thick insulation plate assembled at the upper end of the bottom sealing leg, and the glass plate is sealed and fixed by glue after being assembled.

[0007] Preferably, the bottom sealing leg is sequentially provided with a first mounting part for clamping the glass plate from bottom to top, a second mounting part for assembling the force bearing square tube, and a third mounting part for clamping the thick insulation plate.

[0008] Further, the first mounting part is recessed inward at both sides of the bottom sealing leg, and a sealing strip is arranged at the recessed part.

[0009] Further, a plurality of groups of pin shafts are fixed at both sides of the second mounting part.

[0010] Preferably, the glass plate is a laminated glass, further improving the water-proof and moisture-proof effect.

[0011] Preferably, the bottom of the force bearing square tube is further provided with a long screw.

[0012] Preferably, the thick insulation plate is a PMMA plate with a reinforcing rib.

[0013] Further, a pressing plate is arranged at the abutting part of the thick insulation plate and the bottom sealing leg, the upper end of the pressing plate abuts against the reinforcing rib of the thick insulation plate, and the lower end of the pressing plate abuts against the bottom sealing leg, the lower end of the pressing plate is provided with a short screw, and the short screw is inserted into the bottom sealing leg after penetrating through the pressing plate.

[0014] Preferably, the back of the high-pressure cabin and the low-pressure cabin is further provided with double folded edges for facilitating splicing with the transformer extension box.

[0015] The technical effects of the present application mainly reflect in the following aspects: by assembling the glass plate, the force square tube and the thick insulation plate from bottom to top on the bottom sealing foot, using the glass plate to prevent water and moisture, using the force square tube to strengthen the stability of the bottom sealing foot, and using the thick insulation plate to prevent electric leakage, the structure stability and waterproof effect of the box transformer can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is an assembly structure diagram of the water and moisture prevention box transformer of the present application;

[0017] Figure 2 is a front view of Figure 1 ;

[0018] Figure 3 is a sectional view of A-A in Figure 2 ;

[0019] Figure 4 is a sectional view of B-B in Figure 2 ;

[0020] Figure 5 is a back view of the box body in Figure 1 ;

[0021] Figure 6 is a schematic diagram of the bottom sealing structure in Figure 3 ;

[0022] Figure 7 is an enlarged schematic diagram of the partial view A in Figure 6 . DETAILED DESCRIPTION

[0023] The specific embodiments of the present application are further described in detail below in combination with the drawings, so that the technical scheme of the present application is easier to understand and master.

[0024] A water and moisture prevention box transformer, as shown in Figure 1 , comprises a box body 1, a transformer extension box 2 assembled on the back of the box body 1, and a heat dissipation fin 3 assembled on the back of the transformer extension box 2.

[0025] As shown in Figures 2-5As shown, the inside of the box 1 is provided with a high-pressure cabin 101, a low-pressure cabin 102 and a capacitor cabin 103, the high-pressure cabin 101 and the low-pressure cabin 102 are both equipped with a metal door 104 which is opened in two, a high-low pressure cabin partition 105 is arranged between the high-pressure cabin 101 and the low-pressure cabin 102, a low-pressure cabin partition 106 is arranged between the low-pressure cabin 102 and the capacitor cabin 103, the inner top end of the high-pressure cabin 101, the low-pressure cabin 102 and the capacitor cabin 103 is provided with an upper corner plate 107 which is fixed with the inner top of the box 1, a bottom sealing structure 108 is arranged at the lower end of the high-pressure cabin 101, the low-pressure cabin 102 and the capacitor cabin 103, a lower corner plate 109 for pressing the bottom sealing structure 108 is welded and fixed at the edge corner of the high-pressure cabin 101 and the capacitor cabin 103, and a mounting beam 110 is arranged inside the high-pressure cabin 101, the low-pressure cabin 102 and the capacitor cabin 103. The back of the high-pressure cabin 101 and the low-pressure cabin 102 is also provided with a double folded edge 111 which facilitates splicing with the transformer expansion box 2.

[0026] As Figures 6-7As shown, the bottom sealing structure 108 is a assembled structure, including a bottom sealing leg 1081, a glass plate 1082 assembled below the bottom sealing leg 1081, a force bearing square tube 1083 assembled in the middle of the bottom sealing leg 1081, and a thick insulation plate 1084 assembled on the upper end of the bottom sealing leg 1081, the glass plate 1082 is sealed and fixed by glue after assembly. The bottom sealing leg 1081 is sequentially provided with a first mounting portion 10811 for clamping the glass plate 1082 from bottom to top, a second mounting portion 10812 for assembling the force bearing square tube 1083, and a third mounting portion 10813 for clamping the thick insulation plate 1084. The first mounting portion 10811 is recessed inward on both sides of the bottom sealing leg 1081, and a sealing strip 108111 is arranged at the recessed position, specifically, when the glass plate 1082 is clamped in the first mounting portion 10811, the sealing strip 108111 is used for sealing abutment to prevent air circulation. A plurality of groups of pin shafts 108121 are fixed on both sides of the second mounting portion 10812, which facilitates the insertion of the pin shafts 108121 into the force bearing square tube 1083, so that the force bearing square tube 1083 is stably fixed on the second mounting portion 10812. The bottom of the force bearing square tube 1083 is also provided with a long screw 10831, specifically, when the pin shafts 108121 are inserted into the force bearing square tube 1083, the long screw 10831 is used to pass through the force bearing square tube 1083 and press the pin shafts 108121, which can prevent the force bearing square tube 1083 from loosening. The thick insulation plate 1084 is a reinforced acrylic plate. The position where the thick insulation plate 1084 abuts against the bottom sealing leg 1081 is provided with a pressing plate 10841, the upper end of the pressing plate 10841 abuts against the reinforcing rib of the thick insulation plate 1084, and the lower end abuts against the top surface of the bottom sealing leg 1081, the lower end of the pressing plate 10841 is provided with a short screw 10842, which is inserted into the bottom sealing leg 1081 after penetrating the pressing plate 10841, specifically, the pressing plate 10841 is used to assist the thick insulation plate 1084 in fixedly mounting after abutting against the bottom sealing leg 1081.

[0027] In this embodiment, the lower ends of the high-low pressure cabin partition plate 105 and the low pressure cabin partition plate 106 abut against the upper surface of the bottom sealing leg 1081, and then are fixed by welding, in addition, the edges of the thick insulation plate 1084 abut against the lower end side of the high-low pressure cabin partition plate 105 or the low pressure cabin partition plate 106. Specifically, the glass plate 1082 is a laminated glass, which further improves the water and moisture proof effect.

[0028] The technical effects of the present application mainly embody in the following aspects: by assembling the glass plate, the force bearing square tube and the thick insulation plate on the bottom sealing leg from bottom to top, using the glass plate for water and moisture proof, the force bearing square tube for strengthening the stability of the bottom sealing leg, and using the thick insulation plate for preventing electric leakage, the structural stability and the waterproof effect of the box transformer can be improved.

[0029] Of course, the above merely illustrates typical embodiments of the present application, and in addition to the above, the present application can have other various embodiments, and any technical solutions formed by equivalent replacement or equivalent transformation all fall within the scope of the present application.

Claims

1. A water-proof and moisture-proof box transformer, comprising a box body, a transformer extension box assembled on the back of the box body, and a heat dissipation fin assembled on the back of the transformer extension box, wherein the inside of the box body is provided with a high-voltage chamber, a low-voltage chamber and a capacitor chamber, the high-voltage chamber and the low-voltage chamber are both provided with a metal door with a split, a high-low voltage chamber partition is arranged between the high-voltage chamber and the low-voltage chamber, a low-voltage chamber partition is arranged between the low-voltage chamber and the capacitor chamber, the inner top end of the high-voltage chamber, the low-voltage chamber and the capacitor chamber is provided with an upper corner plate fixed with the inner top of the box body, a bottom sealing structure is arranged at the lower end of the high-voltage chamber, the low-voltage chamber and the capacitor chamber, a lower corner plate for pressing the bottom sealing structure is welded and fixed at the edge corner of the high-voltage chamber and the capacitor chamber, and a mounting beam is arranged in the inside of the high-voltage chamber, the low-voltage chamber and the capacitor chamber. The bottom sealing structure is an assembled structure, comprising a bottom sealing leg, a glass plate assembled below the bottom sealing leg, a force bearing square tube assembled in the middle of the bottom sealing leg, and a thick insulation plate assembled on the upper end of the bottom sealing leg, the glass plate being sealed and fixed by glue after assembly; the bottom sealing leg is sequentially provided from bottom to top with a first mounting part for clamping the glass plate, a second mounting part for assembling the force bearing square tube, and a third mounting part for clamping the thick insulation plate; the first mounting part is inwardly recessed on both sides of the bottom sealing leg, and a sealing strip is arranged at the recessed part; a plurality of groups of pin shafts are fixed on both sides of the second mounting part; the thick insulation plate is a reinforced acrylic plate; a pressing plate is arranged at the abutting part of the thick insulation plate and the bottom sealing leg, the upper end of the pressing plate abutting the reinforcing rib of the thick insulation plate, and the lower end of the pressing plate abutting the bottom sealing leg, a short screw being arranged at the lower end of the pressing plate, the short screw being inserted into the bottom sealing leg after penetrating the pressing plate; the back of the high-pressure cabin and the low-pressure cabin is further provided with double folded edges facilitating splicing with a transformer expansion box.

2. A water-proof and moisture-proof box transformer according to claim 1, characterized in that: The glass plate is a laminated glass.

3. A water-proof and moisture-proof box transformer according to claim 1, characterized in that: A long screw is further arranged at the bottom of the force bearing square tube.

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