Rainproof electric box transformer substation

By introducing components such as rainproof covers, drainage channels, exhaust fans, and one-way valves into the distribution box, the problems of rainwater erosion and sealing failure were solved, achieving rainproof protection for the distribution box and improving the safety and stability of the power equipment.

CN224097223UActive Publication Date: 2026-04-07WUXI YUANHAI CABINET MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

During heavy rainfall, rainwater enters the existing distribution box through the heat dissipation holes, causing electrical components to become damp and damaged. Furthermore, the sealing measures at the inlet and outlet points are prone to failure, affecting the safe operation of power equipment.

Method used

The design incorporates components such as a rain cover, a drainage channel, an exhaust fan, and a one-way valve. The drainage channel removes rainwater, the exhaust fan dissipates heat, and the one-way valve drains condensate, ensuring the dryness of the interior of the enclosure. The sealed conduit and rubber ring further enhance the airtightness.

Benefits of technology

It effectively prevents rainwater from entering the enclosure, keeps electrical components dry, improves equipment safety and stability, reduces maintenance frequency and costs, and extends service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of distribution boxes, in particular to a rainproof electric box transformer substation, which comprises a box body, the top end of the box body is fixedly connected with a rainproof cover, two sides of the rainproof cover are both fixedly connected with diversion trenches, two sides of the bottom end of the rainproof cover are both provided with a plurality of heat dissipation holes, the middle part of the bottom end of the rainproof cover is provided with a through hole, and the through hole is communicated with the diversion trenches. A through hole is formed in the bottom end of the box body, an exhaust fan is fixedly connected to the bottom end of the through hole, a threading pipe is fixedly connected to one side of the box body, and a one-way valve is fixedly connected to the middle of the bottom end of the box body. Rainwater falling on the rain cover flows out along the two ends of the diversion trench, so that the effect that the rainwater cannot flow into the box body along the heat dissipation holes is achieved, it is ensured that internal electrical elements are not eroded by the rainwater, and the safety and stability of operation of power equipment are greatly improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a power distribution box technical field, concretely relates to a rainproof electric box transformer. BACKGROUND

[0002] The power distribution box has the characteristics of small volume, simple installation, special technical performance, fixed position, unique configuration function, no site limitation, universal application, stable and reliable operation, high space utilization, less land occupation and environmental protection effect, and is a control center for reasonably distributing electric energy of various components in the command power supply line, a control link for reliably receiving the upper power supply and correctly feeding the load electric energy, and a key for obtaining user satisfaction for power supply quality.

[0003] Most of the existing power distribution box heat dissipation holes are arranged on both sides of the box body, when encountering heavy rain, rainwater will flow into the box body through the heat dissipation holes along the side wall of the box body, causing the internal electrical components to be damaged by damp.

[0004] The power distribution box inlet and outlet parts usually need to pass through the box body, and the existing waterproof measures are usually only simple sealing treatment, under the long-time rainwater scouring, the sealing material is easy to fail, and the rainwater enters the box body along the cable, threatening the safe operation of the power equipment. UTILITY MODEL CONTENTS

[0005] In view of the above-mentioned shortcomings of the prior art, the utility model provides a rainproof electric box transformer, which can effectively solve the problems in the background art.

[0006] To achieve the above purpose, the utility model realizes the following technical scheme:

[0007] The utility model provides a rainproof electric box transformer, which comprises: a box body, a rain cover fixedly connected to the top end of the box body, flow guide grooves fixedly connected to both sides of the rain cover, a plurality of heat dissipation holes formed in the bottom end of the rain cover on both sides, a through hole formed in the middle of the bottom end of the rain cover, a draught fan fixedly connected to the bottom end of the through hole, a threading pipe fixedly connected to one side of the box body, a rain shield fixedly connected to the upper side of the threading pipe on one side of the box body, and a one-way valve fixedly connected to the middle of the bottom end of the box body.

[0008] Further, electric motors are fixedly connected to both sides of the bottom end of the draught fan, and the output end of the electric motor is connected with a fan blade through spline connection.

[0009] Further, a cabinet door is rotatably connected to one end of the box body, a sealing strip is fixedly connected to the edge of the inner wall of the cabinet door, and a lock is fixedly connected to one side of the cabinet door.

[0010] Further, a plurality of elastic sheets are uniformly fixedly connected to the other end of the threading pipe, a rubber ring is clamped to the middle of the elastic sheet, and a fastening nut is threadedly connected to the other end of the threading pipe.

[0011] Further, the top end of the one-way valve is provided with a water inlet, the bottom end of the water inlet is provided with a cavity, the bottom end of the cavity is provided with a sliding groove, the bottom end of the sliding groove is provided with a clamping groove, and the bottom end of the clamping groove is provided with a water outlet.

[0012] Further, the top end of the water inlet is fixedly connected with a filter screen, the inside of the clamping groove is fixedly connected with a fixing frame, and the top end of the fixing frame is fixedly connected with a spring.

[0013] Further, the top end of the spring is abutted with a plug, the plug is slidingly connected in the inside of the sliding groove, the top end of the plug is connected with the water inlet in a matched mode, and the surface of the plug is uniformly provided with a plurality of round holes.

[0014] Further, the two sides of the bottom end of the box body are fixedly connected with mounting frames, and the two ends of the mounting frames are provided with fixing holes.

[0015] Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

[0016] 1. By setting the heat dissipation holes, the heat dissipation holes are arranged on the two sides of the bottom end of the rain cover, the two sides of the rain cover are fixedly connected with the flow guide grooves, the rainwater falling on the rain cover flows out along the flow guide grooves, so that the rainwater cannot flow into the box body through the heat dissipation holes, the internal electrical components are not eroded by the rainwater, and the safety and stability of the power equipment operation are greatly improved.

[0017] 2. By setting the threading pipe, the fastening nut is first threaded through the wire harness, then the rubber ring is sleeved on the surface of the wire harness and then threaded through the threading pipe, and finally the fastening nut is tightened to uniformly extrude the rubber ring, so that the rubber ring is tightly attached to the wire harness and the threading pipe, and the sealing effect is better.

[0018] 3. By setting the one-way valve, the condensate water in the box body is discharged through the one-way valve when the condensate water reaches a certain amount, so that the dryness of the box body is improved, the risk of damage of the electrical components due to dampness is reduced, the maintenance frequency and cost of the equipment are reduced, and the service life is prolonged. DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0020] Figure 1 It is the overall first visual angle structure schematic diagram of the utility model.

[0021] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the rain cover structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the exhaust fan structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the conduit structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the overall cross-sectional structure of the one-way valve of this utility model;

[0026] Figure 7 This is a schematic diagram of the one-way valve structure of this utility model;

[0027] Figure 8 This is a schematic diagram of the plug structure of this utility model.

[0028] The labels in the diagram represent:

[0029] 1. Cabinet; 2. Rain cover; 201. Ventilation hole; 202. Through hole; 3. Flow guide groove; 4. Exhaust fan; 401. Motor; 402. Fan blade; 5. Cabinet door; 501. Sealing strip; 502. Lock; 6. Conduit; 601. Spring; 602. Rubber ring; 603. Fastening nut; 7. Rain shield; 8. One-way valve; 801. Water inlet; 802. Cavity; 803. Slide groove; 804. Slot; 805. Water outlet; 806. Filter screen; 807. Fixing bracket; 808. Spring; 809. Plug; 810. Round hole; 9. Mounting bracket; 901. Fixing hole. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] The present invention will be further described below with reference to the embodiments.

[0032] Example 1:

[0033] Reference Figures 1-8This is the first embodiment of the present utility model, which discloses a rainproof electrical box transformer, including: a box body 1, a rainproof cover 2 fixedly connected to the top of the box body 1, a guide groove 3 fixedly connected to both sides of the rainproof cover 2, a plurality of heat dissipation holes 201 opened on both sides of the bottom end of the rainproof cover 2, a through hole 202 opened in the middle of the bottom end of the rainproof cover 2, an exhaust fan 4 fixedly connected to the bottom end of the through hole 202, a conduit 6 fixedly connected to one side of the box body 1, a rain shield 7 fixedly connected above the conduit 6 on one side of the box body 1, and a one-way valve 8 fixedly connected to the middle of the bottom end of the box body 1.

[0034] With the setting of heat dissipation holes 201, when in use, heat dissipation holes 201 are opened on both sides of the bottom of the rain cover 2, and both sides of the rain cover 2 are fixedly connected with guide grooves 3. Rainwater falling on the rain cover 2 will flow out along both ends of the guide grooves 3, thereby achieving the effect that rainwater will not flow into the box 1 through the heat dissipation holes 201, ensuring that the internal electrical components are not corroded by rainwater, and greatly improving the safety and stability of the operation of the power equipment.

[0035] Example 2:

[0036] Reference Figures 1-8 This is the second embodiment of the present invention, which differs from the first embodiment in that:

[0037] Motors 401 are fixedly connected to both sides of the bottom of the exhaust fan 4. The output end of the motor 401 is connected to the fan blades 402 via splines. A cabinet door 5 is rotatably connected to one end of the housing 1. A sealing strip 501 is fixedly connected to the edge of the inner wall of the cabinet door 5. A lock 502 is fixedly connected to one side of the cabinet door 5. Several spring pieces 601 are evenly fixedly connected to the other end of the conduit 6. A rubber ring 602 is snapped into the middle of the spring piece 601. A fastening nut 603 is threaded to the other end of the conduit 6. Mounting brackets 9 are fixedly connected to both sides of the bottom of the housing 1. Fixing holes 901 are opened at both ends of the mounting brackets 9.

[0038] The one-way valve 8 has an inlet 801 at its top, a cavity 802 at its bottom, a groove 803 at its bottom, a slot 804 at its bottom, and an outlet 805 at its bottom. A filter screen 806 is fixedly connected to the top of the inlet 801. A fixing frame 807 is fixedly connected inside the slot 804. A spring 808 is fixedly connected to the top of the fixing frame 807. A plug 809 is abutted against the top of the spring 808. The plug 809 is slidably connected inside the groove 803. The top of the plug 809 and the inlet 801 are connected to each other. Several round holes 810 are evenly distributed on the surface of the plug 809.

[0039] With the conduit 6 in place, during use, the fastening nut 603 is first passed through the wire harness, then the rubber ring 602 is fitted onto the surface of the wire harness and passed through the conduit 6. Finally, the fastening nut 603 is tightened so that the spring 601 evenly presses the rubber ring 602, ensuring that the rubber ring 602 fits tightly with the wire harness and the conduit 6, thus achieving a better sealing effect. With the one-way valve 8 in place, condensation will be generated inside the enclosure 1 due to the temperature difference between day and night. When the condensation inside the enclosure 1 reaches a certain amount, it will be discharged through the one-way valve 8, thereby improving the dryness inside the enclosure 1, reducing the risk of electrical components being damaged by moisture, reducing the frequency and cost of equipment maintenance, and extending the service life.

[0040] The remaining structure is the same as that in Example 1.

[0041] The workflow of this utility model is as follows:

[0042] First, the housing 1 is fixed to the ground through the fixing holes 901 at both ends of the mounting bracket 9. Then, the electrical components are installed inside the housing 1. Next, the wire harness is passed through the conduit 6 and connected to the internal electrical components. With the conduit 6 in place, when in use, the fastening nut 603 is first passed through the wire harness, then the rubber ring 602 is fitted onto the surface of the wire harness and then passed through the conduit 6. Finally, the fastening nut 603 is tightened so that the spring 601 evenly squeezes the rubber ring 602, ensuring that the rubber ring 602 fits tightly with the wire harness and the conduit 6, thereby achieving a better sealing effect.

[0043] Secondly, the exhaust fan 4 is powered on and started. Since the electrical components generate a lot of heat when they are working, and the heat will accumulate at the top of the inside of the wire body 1, the exhaust fan 4 will exhaust the heat inside the box through the heat dissipation holes 201. The heat dissipation holes 201 are set on both sides of the bottom of the rain cover 2 during use, and the two sides of the rain cover 2 are fixedly connected to the guide grooves 3. The rainwater falling on the rain cover 2 will flow out along the two ends of the guide grooves 3, thereby achieving the effect that the rainwater will not flow into the inside of the box body 1 through the heat dissipation holes 201, ensuring that the internal electrical components are not corroded by rainwater, greatly improving the safety and stability of the operation of the power equipment, and achieving the rainproof effect without affecting the heat dissipation effect.

[0044] Finally, the cabinet door 5 is locked by the lock 502. When a large amount of condensate is generated inside the cabinet 1 due to the temperature difference between day and night, the condensate will squeeze the plug 809, causing the spring 808 to contract and thus opening the water inlet 801. The condensate will pass through the cavity 802, the round hole 810, the slide 803 and the fixing frame 807 in sequence, and finally be discharged through the water outlet 805. After the condensate is discharged, the spring 808 returns to its original position and closes the water inlet 801 through the plug 809 to prevent the backflow of external rainwater. With the setting of the one-way valve 8, condensate will be generated inside the cabinet 1 due to the temperature difference between day and night. When the amount of condensate inside the cabinet 1 reaches a certain level, it will be discharged through the one-way valve 8, thereby improving the dryness inside the cabinet 1, reducing the risk of electrical components being damaged by moisture, reducing the frequency and cost of equipment maintenance, and extending the service life. With the setting of the filter screen 806, rust in the condensate is prevented from clogging the one-way valve 8 and affecting normal use.

[0045] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A rainproof electrical box-type transformer, characterized in that, include: The enclosure has a rain cover fixedly connected to its top, and air guide grooves fixedly connected to both sides of the rain cover. Several heat dissipation holes are opened on both sides of the bottom of the rain cover. A through hole is opened in the middle of the bottom of the rain cover, and an exhaust fan is fixedly connected to the bottom of the through hole. A conduit is fixedly connected to one side of the enclosure, and a rain shield is fixedly connected to one side of the enclosure above the conduit. A one-way valve is fixedly connected to the middle of the bottom of the enclosure.

2. The rainproof electrical box transformer according to claim 1, characterized in that, Motors are fixedly connected to both sides of the bottom of the exhaust fan, and fan blades are connected to the output end of the motors via splines.

3. The rainproof electrical box transformer according to claim 1, characterized in that, A cabinet door is rotatably connected to one end of the cabinet body, a sealing strip is fixedly connected to the edge of the inner wall of the cabinet door, and a lock is fixedly connected to one side of the cabinet door.

4. A rainproof electrical box transformer according to claim 1, characterized in that, The other end of the conduit is uniformly and fixedly connected with several spring pieces, and a rubber ring is snapped into the middle of each spring piece. The other end of the conduit is threaded with a fastening nut.

5. A rainproof electrical box transformer according to claim 1, characterized in that, The one-way valve has an inlet at its top, a cavity at its bottom, a groove at its bottom, a slot at its bottom, and an outlet at its bottom.

6. A rainproof electrical box transformer according to claim 5, characterized in that, A filter screen is fixedly connected to the top of the water inlet, a fixing frame is fixedly connected inside the slot, and a spring is fixedly connected to the top of the fixing frame.

7. A rainproof electrical box transformer according to claim 6, characterized in that, The top of the spring abuts against a plug, which is slidably connected inside the groove. The top of the plug is connected to the water inlet, and several round holes are evenly distributed on the surface of the plug.

8. A rainproof electrical box transformer according to claim 1, characterized in that, Mounting brackets are fixedly connected to both sides of the bottom of the box, and fixing holes are provided at both ends of the mounting brackets.