Outdoor waterproof mechanism for photovoltaic inverter

By designing waterproof and heat dissipation components on the photovoltaic inverter, the problems of insufficient waterproofing and heat dissipation are solved, enabling the inverter to operate stably and have a long lifespan in harsh environments, and reducing maintenance costs.

CN223758552UActive Publication Date: 2026-01-02SHENZHEN HUANCEWEI TESTING TECH CO LTD
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Patent Information

Application Number
CN202423098600.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2026-01-02
Estimated Expiration
2034-12-16

AI Technical Summary

Technical Problem

Existing outdoor waterproof mechanisms for photovoltaic inverters are inadequate in terms of waterproofing and heat dissipation, and lack effective drainage design. This can lead to moisture ingress, potentially causing short circuits, corrosion, and other problems, affecting the normal operation and lifespan of the equipment.

Method used

An outdoor waterproof mechanism including waterproof components and heat dissipation components was designed. The waterproof components prevent water from entering through structures such as water guide plates, drainage channels and sealing strips, while the heat dissipation components achieve effective heat dissipation through fans and water vapor adsorption nets, and reduce the internal temperature through forced convection.

Benefits of technology

It effectively prevents moisture from entering, ensuring that the inverter works normally in harsh environments, extending equipment life, improving stability, and reducing maintenance costs through a convenient cabinet door design.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model provides an outdoor waterproof mechanism for a photovoltaic inverter. The outdoor waterproof mechanism for the photovoltaic inverter comprises an inverter and a waterproof mechanism box, the inverter is fixedly connected to the inner wall of the waterproof mechanism box, the waterproof mechanism box comprises a connecting column, a waterproof assembly, a heat dissipation assembly, a case and a box door, one side of the inverter is fixedly connected to one end of the connecting column, and the other side of the inverter is fixedly connected to the other end of the connecting column. The other end of the connecting column is fixedly connected to one side of the inner wall of the case, the top of the case is fixedly connected to the bottom of the waterproof assembly, one side of the case is fixedly connected with the heat dissipation assembly, and the other side of the case is hinged to one side of the case door. According to the outdoor waterproof mechanism for the photovoltaic inverter, the top of the cabinet is fixedly connected with the waterproof assembly, so that rainwater can be effectively prevented from permeating from the top, and the internal inverter is protected from being damaged by moisture; and one side of the case is fixedly connected with the heat dissipation assembly, so that heat generated when the inverter works can be effectively dissipated, and the internal temperature is kept within a reasonable range.
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Description

TECHNICAL FIELD

[0001] The utility model relates to outdoor waterproof field especially, it is a kind of outdoor waterproof mechanism for photovoltaic inverter. BACKGROUND

[0002] Photovoltaic system is usually installed outdoors, faces various severe weather conditions, such as rain, snow, high temperature, low temperature, dust and salt fog etc. These environmental factors can adversely affect the performance and life of inverter, and the inverter is one of the core components of photovoltaic system, responsible for converting the direct current generated by solar panels into alternating current. Therefore, its reliability and stability are crucial to the operation of the entire system, and moisture is one of the main causes of electronic equipment failure. If moisture enters the inverter, it may cause short circuit, corrosion and other problems, which seriously affect the normal operation of the equipment, and the inverter will generate a lot of heat during operation, which will cause the equipment to overheat, thereby reducing the efficiency and even damaging the equipment.

[0003] As the utility model discloses a kind of outdoor waterproof mechanism for photovoltaic inverter disclosed in authorized announcement No.CN215835697U, including cabinet, the cabinet includes cabinet main body, installation slot, connecting column, first air inlet, air blower, exhaust slot, rotating door, second air inlet, water vapor adsorption net and communication groove, the rotating door is rotatably connected at the front end surface of cabinet main body, the connecting column is fixedly connected on the upper portion of cabinet main body side end surface, the first air inlet is opened in the lower portion of cabinet main body one side end surface, the installation slot is opened in the inside of cabinet main body, the exhaust slot is opened in the lower portion of installation slot one side inner wall, the second air inlet is opened in the upper portion of installation slot inner wall away from exhaust slot one side, the communication groove is opened in the bottom of second air inlet, the water vapor adsorption net is fixedly connected in the inside of communication groove, the air blower is fixedly connected in the lower end surface of cabinet main body, the cabinet is provided with waterproof cover outside.The utility model effectively improves the waterproof performance of photovoltaic inverter, and can efficiently radiate heat, but the device solves the problems of waterproofing and heat dissipation, but there is no effective drainage design, and internal water may not be drained in time.

[0004] Therefore, it is necessary to provide a new outdoor waterproof mechanism for photovoltaic inverter to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides an outdoor waterproof mechanism for photovoltaic inverter.

[0006] The outdoor waterproof mechanism for photovoltaic inverter provided by the utility model comprises an inverter and a waterproof mechanism box, and the inverter is fixedly connected to the inner wall of the waterproof mechanism box.

[0007] Preferably, the waterproof mechanism box comprises a connecting column, a waterproof assembly, a heat dissipation assembly, a case and a case door, one side of the inverter is fixedly connected to one end of the connecting column, the other end of the connecting column is fixedly connected to one side of the inner wall of the case, the top of the case is fixedly connected to the bottom of the waterproof assembly, one side of the case is fixedly connected to the heat dissipation assembly, the other side of the case is hingedly connected to one side of the case door.

[0008] Preferably, the waterproof assembly comprises a water guide plate, a water drainage groove, a water guide opening, a sealing strip, a water guide plate, a fixing seat, a first clamping groove and a first clamping buckle, the top of the case is fixedly connected to the bottom of the sealing strip, the top of the sealing strip is fixedly connected to the bottom of the fixing seat, the top of the fixing seat is fixedly connected to the bottom of the water guide plate, the outer side wall of the fixing seat is provided with the first clamping groove, one side of the fixing seat is provided with the water drainage groove, one side of the water drainage groove is fixedly connected with the first clamping buckle, and the water guide plate is provided with the water guide opening matched with the water drainage groove.

[0009] Preferably, the heat dissipation assembly comprises a fan, a first air inlet groove, a water vapor adsorption net, a baffle, a second clamping buckle, a communication groove, a second clamping groove, an exhaust groove and a second air inlet groove, the second air inlet groove is arranged at the lower part of the side end face of the case, the bottom of the case is fixedly connected to the top of the fan, the exhaust groove is arranged at the lower part of the inner wall of one side of the case, the fan is fixedly connected with a group of air pipes, the air pipes are communicated with the exhaust groove, the second air inlet groove is arranged at the upper part of the inner wall of the side of the case away from the exhaust groove, the communication groove is arranged at the bottom of the first air inlet groove, the water vapor adsorption net is fixedly connected in the communication groove, the inner wall of the side of the case is provided with the second clamping groove, the inner wall of the side of the case is provided with the baffle, and one side of the baffle is fixedly connected with the second clamping buckle.

[0010] Preferably, the water drainage groove is fixed to one side of the fixing seat through the first clamping buckle and the first clamping groove, and one end of the water drainage groove is arranged in front of the case door.

[0011] Preferably, the diameter of the water guide plate gradually decreases from top to bottom, the water guide plate is provided with two or more water guide plates, and the water guide plates are made of metal.

[0012] Preferably, the second air inlet groove is arranged at the lower part of the side end face of the case, and three groups of the second air inlet groove are communicated with the communication groove.

[0013] Compared with the related art, the outdoor waterproof mechanism for the photovoltaic inverter has the following beneficial effects: the waterproof assembly is fixedly connected to the top of the case, can effectively prevent rainwater from penetrating from the top, and protects the internal inverter from moisture damage; the heat dissipation assembly is fixedly connected to one side of the case, can effectively dissipate the heat generated by the inverter during operation, keeps the internal temperature within a reasonable range, and prolongs the service life of the inverter; the inverter is fixed on the inner wall of the case through the connecting column, the fixing mode can ensure that the inverter does not loosen or shift during transportation and use, and improves the stability of the overall structure; the box door is connected to one side of the case through the hinge, facilitating the user to check, maintain and replace components of the internal inverter. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A preferred embodiment structure diagram of the outdoor waterproof mechanism for the photovoltaic inverter is shown in the figure.

[0015] Figure 2 A preferred embodiment structure diagram of the outdoor waterproof mechanism for the photovoltaic inverter is shown in the figure. Figure 1

[0016] Figure 3 A preferred embodiment structure diagram of the outdoor waterproof mechanism for the photovoltaic inverter is shown in the figure. Figure 1

[0017] Figure 4 A preferred embodiment structure diagram of the outdoor waterproof mechanism for the photovoltaic inverter is shown in the figure. Figure 1

[0018] Figure 5 A preferred embodiment structure diagram of the outdoor waterproof mechanism for the photovoltaic inverter is shown in the figure. Figure 1

[0019] Reference signs in the figure: 1, inverter; 2, waterproof mechanism case; 210, connecting column; 220, waterproof assembly; 230, heat dissipation assembly; 240, case; 250, box door; 221, water guide plate; 222, water drainage groove; 223, water inlet; 224, sealing strip; 225, water guide plate; 226, fixing seat; 227, No. 1 clamping groove; 228, No. 1 buckle; 231, fan; 232, first air inlet groove; 233, water vapor adsorption net; 234, baffle; 235, No. 2 buckle; 236, communication groove; 237, No. 2 clamping groove; 238, exhaust groove; 239, second air inlet groove. DETAILED DESCRIPTION

[0020] The utility model will be further described below in combination with the drawings and embodiments.

[0021] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and​​​​Figure 5 wherein, Figure 1 is a preferred embodiment structure diagram of the outdoor waterproof mechanism for the photovoltaic inverter provided by the utility model; Figure 2 is Figure 1 is a structure diagram of the waterproof assembly; Figure 3 is Figure 1 is a structure diagram of the waterproof assembly when disassembled; Figure 4 is Figure 1 is a structure diagram of the front view of the heat dissipation assembly; Figure 5 is Figure 1 is a structure diagram of the side view of the heat dissipation assembly.

[0022] In the specific implementation process, as Figure 1 shown, the utility model provides an outdoor waterproof mechanism for photovoltaic inverter, which comprises an inverter 1 and a waterproof mechanism box 2, the inverter 1 is fixedly connected to the inner wall of the waterproof mechanism box 2, the waterproof mechanism box 2 comprises a connecting column 210, a waterproof assembly 220, a heat dissipation assembly 230, a case 240 and a box door 250, one side of the inverter 1 is fixedly connected to one end of the connecting column 210, the other end of the connecting column 210 is fixedly connected to one side of the inner wall of the case 240, the top of the case 240 is fixedly connected to the bottom of the waterproof assembly 220, one side of the case 240 is fixedly connected to the heat dissipation assembly 230, and the other side of the case 240 is hingedly connected to one side of the box door 250.

[0023] It should be noted that the waterproof mechanism box 2 is a protective shell design for accommodating and protecting the inverter from the external environment; the connecting column 210 is used for supporting and fixing the inverter on the inner wall of the case; the waterproof assembly 220 is located at the top of the case, which prevents water from entering the case from above, thereby ensuring the safety of the internal electrical equipment; the heat dissipation assembly 230 is arranged on one side of the case, which helps to dissipate the heat generated during the operation of the inverter, so as to maintain a suitable working temperature; the case 240 constitutes the basic frame of the waterproof mechanism box, and provides mounting positions for all other components; the box door 250 is connected to the case through a hinge, which is convenient for opening for maintenance or inspection.

[0024] In the specific implementation process, reference Figures 2-3The utility model provides an outdoor waterproof mechanism for photovoltaic inverter, waterproof subassembly 220 includes water deflector 221, water drain groove 222, water inlet 223, sealing strip 224, water guide plate 225, fixed base 226, first clamping groove 227 and first buckle 228, the top fixed connection of case 240 is in the bottom of sealing strip 224, the top fixed connection of sealing strip 224 is in the bottom of fixed base 226, the top fixed connection of fixed base 226 is in the bottom of water deflector 221, and the outer lateral wall of fixed base 226 is provided with first clamping groove 227, one side of fixed base 226 is equipped with water drain groove 222, and one side fixed connection of water drain groove 222 is equipped with first buckle 228, and water drain groove 222 is fixed in one side of fixed base 226 through first buckle 228 and first clamping groove 227, and one end of water drain groove 222 is arranged in the front of box door 250, and the cross section of water drain groove 222 is semicircular, and the inside is smooth arc, and the outside is straight, forms a semicylinder, and water inlet 223 is set up on water deflector 221 and cooperates with water drain groove 222, and the diameter of water deflector 221 gradually decreases from top to bottom, and more than two water guide plates 225 are arranged on water deflector 221, and the material of water guide plate 225 is metal;

[0025] It is to be noted that the diameter of water deflector 221 gradually decreases from top to bottom, which helps water flow downward along the inclined surface, prevents moisture from entering the case, and more than two water guide plates 225 are provided, which are made of metal and used for further guiding and dispersing water flow; water drain groove 222 is connected with first clamping groove 227 of fixed base 226 through first buckle 228, which ensures that it is stably installed on one side of fixed base 226, the cross section is semicircular, the inside is smooth arc, the outside is straight, and a semicylinder is formed, which helps water flow smoothly and reduces the possibility of water accumulation, collects and discharges water flowing down from water deflector 221; water inlet 223 is set on water deflector 221 and is located at a proper position to effectively drain water; sealing strip 224 provides additional sealing effect to prevent moisture from penetrating from the top of the case; water guide plate 225 further guides and disperses water flow to enhance the waterproof effect; first clamping groove 227 is formed on the outer lateral wall of fixed base 226 and used for fixing water drain groove 222; first clamping groove 227 and first buckle 228 fix water drain groove 222 on one side of fixed base 226 through clamping connection, which ensures that it is stable and not easy to fall off.

[0026] In the specific implementation process, reference is made to Figures 4-5The utility model provides a waterproof mechanism for photovoltaic inverter, the heat dissipation subassembly 230 includes fan 231, first air inlet groove 232, water vapor adsorption net 233, baffle 234, second buckle 235, communicating groove 236, second clamping groove 237, exhaust groove 238 and second air inlet groove 239, the second air inlet groove 239 is seted up in the lower part of one side end surface of case 240, the bottom of case 240 is fixedly connected on the top of fan 231, exhaust groove 238 is seted up in the lower part of the inside wall of one side of case 240, fan 231 is fixedly connected with a group of air pipes, and the air pipe is communicated with exhaust groove 238, and the second air inlet groove 239 is three groups, and is seted up in the lower part of one side end surface of case 240 in proper order, and three groups of second air inlet groove 239 are communicated with communicating groove 236, and the second air inlet groove 239 is seted up on the upper part of the inside wall of one side of case 240 away from exhaust groove 238, and communicating groove 236 is seted up in the bottom of first air inlet groove 232, and water vapor adsorption net 233 is fixedly connected in communicating groove 236, and the inside wall of case 240 on the side of second air inlet groove 239 is provided with second clamping groove 237, and the inside wall of case 240 on the side of second air inlet groove 239 is provided with baffle 234, and the side of baffle 234 is fixedly connected with second buckle 235;

[0027] It should be noted that fan 231 is communicated with exhaust groove 238 through a group of air pipes, hot air is discharged from the case, first air inlet groove 232 provides a channel for external air to enter the case, water vapor adsorption net 233 adsorbs moisture in the air entering the case, preventing the influence of humidity on internal electrical equipment, baffle 234 protects water vapor adsorption net 233, second buckle 235 and second clamping groove 237 facilitate the installation and removal of baffle 234 and water vapor adsorption net 233, communicating groove 236 communicates first air inlet groove 232 and second air inlet groove 239, allowing air to flow smoothly, exhaust groove 238 discharges hot air inside the case, and second air inlet groove 239 provides an additional air inlet channel, increasing air flow.

[0028] The utility model provides a working principle as follows: when rain or other moisture drops from above to the water guide plate 221, because of the inclination design of water guide plate 221, the water flow will flow down along the inclined plane, the water flow enters the drain groove 222 through the water inlet 223, the drain groove 222 collects the water flow and smoothly discharges through its semicircular design, preventing moisture from entering the case, and the sealing strip 224 provides additional sealing effect, preventing moisture from seeping into the case from the top;

[0029] The external air enters the cabinet 240 through the first air inlet groove 232 and the second air inlet groove 239, the entered air passes through the water vapor adsorption net 233 in the communication groove 236 to remove the water therein, the baffle 234 blocks the dust and foreign matters from entering the inside of the cabinet, the fan 231 is started to force the air flow, the hot air in the inside of the cabinet is discharged through the air outlet groove 238, in this way of forced convection, the temperature in the inside of the cabinet is effectively reduced, and the inverter and other electrical equipment are protected.

[0030] The outdoor waterproof mechanism for the photovoltaic inverter has the following advantages: the waterproof and heat dissipation functions are combined, the inverter can normally work in various severe environments, and the service life of the equipment is prolonged; the temperature in the inside of the cabinet is effectively reduced in the forced convection mode, and the long-term stable operation of the inverter and other electrical equipment is ensured; the openable cabinet door makes the maintenance and repair more convenient, and the maintenance cost is reduced.

[0031] The circuit and the control involved in the utility model are prior art, and too much description is not made herein.

[0032] The above is only the embodiment of the utility model, and does not limit the patent range of the utility model, and equivalent structures or equivalent process conversions made by using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields are also included in the patent protection range of the utility model.

Claims

1. An outdoor waterproofing mechanism for a photovoltaic inverter, comprising a waterproofing mechanism box (2) for the inverter (1), characterized in that, The waterproof mechanism box (2) includes a connecting column (210), a waterproof assembly (220), a heat dissipation assembly (230), a case (240) and a box door (250), one side of the inverter (1) is fixedly connected to one end of the connecting column (210), the other end of the connecting column (210) is fixedly connected to one side of the inner wall of the case (240), the top of the case (240) is fixedly connected to the bottom of the waterproof assembly (220), one side of the case (240) is fixedly connected to the heat dissipation assembly (230), and the other side of the case (240) is hingedly connected to one side of the box door (250).

2. Outdoor waterproofing mechanism for a photovoltaic inverter according to claim 1, characterized in that, The waterproof assembly (220) includes a water guide plate (221), a water drainage groove (222), a water guide opening (223), a sealing strip (224), a water guide plate (225), a fixed seat (226), a first clamping groove (227) and a first clamping buckle (228), the top of the sealing strip (224) is fixedly connected to the bottom of the fixed seat (226), the top of the fixed seat (226) is fixedly connected to the bottom of the water guide plate (221), the outer side wall of the fixed seat (226) is provided with the first clamping groove (227), one side of the fixed seat (226) is provided with the water drainage groove (222), one side of the water drainage groove (222) is fixedly connected with the first clamping buckle (228), and the water guide plate (221) is provided with the water guide opening (223) matched with the water drainage groove (222).

3. The outdoor waterproof mechanism for a photovoltaic inverter according to claim 1, characterized in that, The heat dissipation assembly (230) includes a fan (231), a first air inlet groove (232), a water vapor adsorption net (233), a baffle (234), a second clamping buckle (235), a communication groove (236), a second clamping groove (237), an exhaust groove (238) and a second air inlet groove (239), the second air inlet groove (239) is arranged at the lower part of the end face of one side of the case (240), the bottom of the case (240) is fixedly connected to the top of the fan (231), the exhaust groove (238) is arranged at the lower part of the inner wall of one side of the case (240), the fan (231) is fixedly connected with a group of air pipes, the air pipes are communicated with the exhaust groove (238), the second air inlet groove (239) is arranged at the upper part of the inner wall of the side of the case (240) away from the exhaust groove (238), the communication groove (236) is arranged at the bottom of the first air inlet groove (232), the water vapor adsorption net (233) is fixedly connected in the communication groove (236), the inner wall of the side of the case (240) is provided with the second clamping groove (237), the inner wall of the side of the case (240) is provided with the baffle (234), and one side of the baffle (234) is fixedly connected with the second clamping buckle (235).

4. The outdoor waterproof mechanism for a photovoltaic inverter according to claim 2, characterized in that, The water drainage groove (222) is fixed on one side of the fixed seat (226) through the first clamping buckle (228) and the first clamping groove (227), and one end of the water drainage groove (222) is arranged in front of the box door (250).

5. The outdoor waterproof mechanism for a photovoltaic inverter according to claim 2, characterized in that, The water guide plate (221) is gradually reduced in diameter from top to bottom, and more than two water guide plates (225) are arranged on the water guide plate (221), and the water guide plates (225) are made of metal.

6. Outdoor waterproofing mechanism for a photovoltaic inverter according to claim 3, characterized in that, The second air inlet grooves (239) are arranged in three groups on the lower part of the side end face of the cabinet (240) in sequence, and the three groups of second air inlet grooves (239) are communicated with the communication grooves (236).