Protective structure for photovoltaic power generation inverter

Abstract

The invention provides a protection structure for a photovoltaic power generation inverter, which belongs to the technical field of photovoltaic power generation equipment and comprises a placement box body, an inverter main body, an outer protection frame and a protection assembly, the protection assembly comprises a cooling water tank, a cooling water pipe, a water valve, vertical supports, a damping plate and damping springs, the cooling water tank is fixedly installed on one side of the interior of the placement box body, the cooling water pipe is fixedly connected to the upper portion of the cooling water tank, the water valve is fixedly installed on the top of the placement box body, and the vertical supports are fixedly installed on the two sides of the interior of the placement box body; damping plates are movably installed on the inner sides of the vertical supports, and damping springs are fixedly installed between the vertical supports and the damping plates. Rain shielding and protection of the foundation are achieved through the outer protection frame, and direct erosion of rainwater is avoided; the protection assembly integrates heat dissipation and damping functions, solves the problem that the performance of the inverter is reduced or damaged due to high temperature or vibration, achieves multifunctional integrated protection, and improves the stability of equipment.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic power generation equipment technology, and in particular to a protective structure for a photovoltaic power generation inverter. Background Technology

[0002] An inverter converts direct current (DC) power into alternating current (AC). It consists of an inverter bridge, control logic, and filter circuits. It is widely used in air conditioners, home theaters, electric grinders, power tools, sewing machines, DVDs, VCDs, computers, televisions, washing machines, range hoods, refrigerators, video recorders, massagers, fans, lighting, etc. In recent years, to promote renewable energy generation, the construction of photovoltaic power stations has become increasingly widespread. Since the electricity generated by photovoltaic panels is DC, it is not convenient to transmit. Therefore, installing an inverter can convert the DC power generated by photovoltaic panels into AC power, facilitating power transmission.

[0003] In related technologies, existing protective structures cannot meet the requirement of continuous internal cooling gas flow, nor can they be flexibly adjusted to adapt to new environments. The spatial layout is difficult to replan, making implementation extremely difficult and greatly limiting the protective structure's adaptability and flexibility in different situations. Summary of the Invention

[0004] This invention provides a protective structure for photovoltaic power generation inverters to overcome the deficiencies of existing photovoltaic power generation protective structures.

[0005] This invention provides a protective structure for a photovoltaic power generation inverter, including a housing, an inverter body, an outer protective frame, and protective components. The inverter body is detachably installed inside the housing, the outer protective frame is placed on top of the housing, and the protective components are fixedly installed inside the housing. The protective components include a cooling water tank, a cooling water pipe, a water valve, a vertical support, a shock-absorbing plate, and a shock-absorbing spring. The cooling water tank is fixedly installed on one side of the housing, the cooling water pipe is fixedly connected to the top of the cooling water tank, the water valve is fixedly installed on the top of the housing, the vertical support is fixedly installed on both sides of the housing, the shock-absorbing plate is movably installed on the inner side of the vertical support, and the shock-absorbing spring is fixedly installed between the vertical support and the shock-absorbing plate.

[0006] According to the protective structure for a photovoltaic power generation inverter provided by the present invention, a mounting bracket is fixedly installed above the cooling water tank, a rotating motor is fixedly installed on the back of the mounting bracket, a cooling fan is rotatably installed on one side of the mounting bracket, and the output end of the rotating motor is connected to the cooling fan.

[0007] According to the present invention, a protective structure for a photovoltaic power generation inverter is provided, wherein a placement rack is detachably installed inside the placement box, and a grounding pin is fixedly installed below the placement rack. At least two sets of grounding pins are provided, and the grounding pins in each set are of the same size and specifications.

[0008] According to the protective structure for a photovoltaic power generation inverter provided by the present invention, a water channel is provided on the top of the placement box, the water channel is connected to the cooling water pipe, and a water valve is fixedly installed above the water channel.

[0009] According to the protective structure for a photovoltaic power generation inverter provided by the present invention, the bottom of the placement box is provided with drainage holes, and at least two sets of drainage holes are provided, and the drainage holes in each set are of the same size and specifications.

[0010] According to the protective structure for a photovoltaic power generation inverter provided by the present invention, a door is movably installed on the front of the placement box, and a heat dissipation window is provided on one side of the placement box.

[0011] According to a protective structure for a photovoltaic power generation inverter provided by the present invention, an alarm is fixedly installed on the front of the cabinet door, and the alarm is electrically connected to the interior of the cabinet.

[0012] According to the protective structure for a photovoltaic power generation inverter provided by the present invention, an insulating pad is provided on the inner side of the shock-absorbing plate.

[0013] According to the present invention, a protective structure for a photovoltaic power generation inverter is provided, wherein the structure of the outer protective frame is adapted to provide rain protection for the top and sides of the placement box.

[0014] According to the protective structure for a photovoltaic power generation inverter provided by the present invention, the cooling water pipe extends in a serpentine shape and fits against the outer wall of the inverter body.

[0015] The protective structure for photovoltaic inverters provided by this invention provides basic rain protection through an external protective frame, preventing direct erosion by rainwater; the protective components integrate heat dissipation (cooling water tank + cooling water pipe) and shock absorption (vertical bracket + shock absorption plate + shock absorption spring), solving the problem of performance degradation or damage to inverters caused by high temperature or vibration, achieving multi-functional integrated protection and improving equipment stability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the protective structure for photovoltaic power generation inverters provided by the present invention; Figure 2 This is a side sectional view of the protective structure for photovoltaic power generation inverters provided by the present invention; Figure 3 This is a front cross-sectional view of the protective structure for a photovoltaic power generation inverter provided by the present invention.

[0018] Figure label: 100. Place the box; 110. Shelf; 111. Grounding pin; 120. Water channel; 130. Drain hole; 140. Door; 141. Ventilation window; 142. Alarm; 200. Inverter main body; 300. External protective frame; 400. Protective components; 410 Cooling water tank; 411 Mounting bracket; 420 Cooling water pipe; 430 Water valve; 440 Vertical bracket; 450 Shock absorber; 460 Shock absorber spring; 500. Rotate the motor; 600. Cooling fan. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention 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 invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0020] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In the description of this invention, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" indicate the orientation or positional relationship, which is generally based on Figure 1The orientation and position of the protective structure for the photovoltaic inverter shown are for the purpose of describing the invention and simplifying the description only. Unless otherwise stated, these directional terms do not indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of the invention. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0023] This invention provides a protective structure for a photovoltaic power generation inverter, see below. Figure 1-3 The system includes a housing 100, an inverter body 200, an outer protective frame 300, and a protective assembly 400. The inverter body 200 is detachably installed inside the housing 100. The outer protective frame 300 is placed on top of the housing 100. The protective assembly 400 is fixedly installed inside the housing 100. The outer protective frame 300 provides rain protection for the housing 100, while the protective assembly 400 provides multi-functional protection for the internal inverter body 200. The protective assembly 400 includes a cooling water tank 410, cooling water pipes 420, a water valve 430, a vertical support 440, a shock-absorbing plate 450, and a shock-absorbing spring 460. The cooling water tank 410 is fixedly installed on one side inside the housing 100, providing heat dissipation protection and increasing the heat dissipation area. To improve heat dissipation efficiency and prevent overheating, a cooling water pipe 420 is fixedly connected to the top of the cooling water tank 410. The cooling water is guided to flow through the cooling water pipe 420 to cool the internal environment. A water valve 430 is fixedly installed on the top of the housing 100. Vertical supports 440 are fixedly installed on both sides inside the housing 100. A shock-absorbing plate 450 is movably installed on the inner side of the vertical supports 440. The cooling water is circulated through the water valve 430. The inverter body 200 is clamped and fixed by the vertical supports 440 and the shock-absorbing plate 450. An insulating pad is provided on the inner side of the shock-absorbing plate 450. A shock-absorbing spring 460 is fixedly installed between the vertical supports 440 and the shock-absorbing spring 460. The insulating pad facilitates stable clamping of the inverter body, while the shock-absorbing spring 460 reduces the damage to electronic components caused by vibration and impact.

[0024] The inverter body 200 is installed inside the housing 100 in a detachable manner (such as by bolt connection). The outer protective frame 300 is erected on top of the housing 100, and its size covers the top and edges of the housing to provide rain protection. The cooling water tank 410 contains cooling water, which is guided to the periphery of the inverter body 200 through the cooling water pipe 420. The water valve 430 controls the on / off state and flow rate of the cooling water in the cooling water pipe 420. The vertical brackets 440 are symmetrically fixed on both sides of the housing. The shock-absorbing plate 450 is elastically connected to the vertical bracket 440 through the shock-absorbing spring 460, which clamps the inverter body 200. When there is vibration or impact, the shock-absorbing spring 460 contracts to buffer and reduce the impact on the inverter. The outer protective frame 300 provides basic rain protection, preventing direct rainwater erosion; the protective component 400 integrates heat dissipation (cooling water tank 410 + cooling water pipe 420) and shock absorption (vertical bracket 440 + shock absorption plate 450 + shock absorption spring 460), solving the problem of inverter performance degradation or damage caused by high temperature or vibration, realizing multi-functional integrated protection and improving equipment stability.

[0025] A mounting bracket 411 is fixedly installed on the top of the cooling water tank 410. The cooling fan 600 is installed and used through the mounting bracket 411. A rotary motor 500, model YS-, is fixedly installed on the back of the mounting bracket 411. The cooling fan 600 is rotatably installed on one side of the mounting bracket 411. The output end of the rotary motor 500 is connected to the cooling fan 600. The rotary motor 500 drives the cooling fan 600 to rotate and provide airflow ventilation to the inside of the housing 100.

[0026] Mounting bracket 411 is fixed to the top of cooling water tank 410 by welding or bolts. Rotary motor 500 (model YS-) is fixed to the back of mounting bracket 411, with its output shaft passing through the mounting bracket 411 and connecting to the central shaft of cooling fan 600. When the motor starts, the output shaft drives cooling fan 600 to rotate, accelerating airflow inside enclosure 100 and expelling heat through ventilation vents 141. By rotating motor 500 to drive cooling fan 600, air convection inside the enclosure is enhanced, forming a "water cooling + air cooling" composite cooling system with the water cooling of cooling water tank 410 and cooling water pipes 420. This significantly improves heat dissipation efficiency and prevents the inverter from overheating.

[0027] The inside of the housing 100 is detachably equipped with a mounting rack 110. The inverter body 200 is installed and used through the mounting rack 110. Grounding pins 111 are fixedly installed below the mounting rack 110. There are multiple sets of grounding pins 111, not less than two sets. Each set of grounding pins 111 has the same size and specifications. The grounding pins 111 are used to prevent the accumulation of static electricity and to discharge static electricity.

[0028] The mounting bracket 110 is detachably mounted inside the bottom of the mounting enclosure 100 via slots or bolts, and the inverter body 200 is fixed to the mounting bracket 110. The grounding pin 111 is made of conductive metal (such as copper), with one end welded to the mounting bracket 110 and the other end extending through the bottom of the mounting enclosure 100 to the ground, conducting static electricity generated during inverter operation to the ground. By discharging static electricity through multiple sets of grounding pins 111, the breakdown of electronic components or signal interference caused by static electricity accumulation is avoided, improving the safety and stability of inverter operation.

[0029] A water channel 120 is provided on the top of the housing 100. The water channel 120 is connected to the cooling water pipe 420. A water valve 430 is fixedly installed above the water channel 120. The water channel 120 facilitates the introduction of cooling water into the cooling water pipe 420 for use. The water channel 120 is also provided with two sets for easy outlet and replacement of cooling water.

[0030] The water passage trough 120 is a recessed groove on the top of the housing 100. Two sets of water passage troughs 120 are connected to the inlet and outlet ends of the cooling water pipe 420, respectively. A water valve 430 is installed above the inlet end water passage trough 120. When adding cooling water, the inlet end water valve 430 is opened, and cooling water flows through the water passage trough 120 into the cooling water pipe 420, and old water is discharged through the outlet end water passage trough 120, thus replacing the cooling water. The two sets of water passage troughs 120, together with the water valve 430, simplify the operation of adding and replacing cooling water, ensure the continuous and effective operation of the cooling system, and avoid the decrease in heat dissipation capacity due to aging of the cooling water.

[0031] The bottom of the housing 100 is provided with drainage holes 130. There are multiple sets of drainage holes 130, not less than two sets. Each set of drainage holes 130 has the same size and specifications. The drainage holes 130 are designed to prevent water from accumulating and entering the inverter.

[0032] Water holes are evenly distributed along the bottom edge of the enclosure 100, with a diameter of -mm. When a small amount of rainwater seeps into the enclosure or the cooling water pipe 420 leaks slightly, the water is quickly discharged to the outside of the enclosure through the drain hole 130, preventing contact with the inverter body 200. This effectively prevents water accumulation inside the enclosure, avoiding problems such as short circuits and component corrosion caused by water accumulation, and improving the moisture-proof safety of the equipment.

[0033] The front of the housing 100 is equipped with a door 140, which allows for easy maintenance and repair of the interior of the housing 100. A ventilation window 141 is provided on one side of the housing 100 to facilitate ventilation of the interior of the housing 100.

[0034] The enclosure door 140 is connected to the front of the housing 100 via a hinge and can be opened outwards, facilitating access for operators to inspect and replace components of the inverter body 200. A ventilation window 141 is located on the side of the housing, with a built-in dust filter, and works in conjunction with the cooling fan 600 to form an air circulation channel (the fan blows in fresh air, and hot air is exhausted through the ventilation window 141). The enclosure door 140 design simplifies maintenance and reduces labor costs; the ventilation window 141, in conjunction with the fan, enhances ventilation, while the dust filter reduces dust ingress, achieving both heat dissipation and dust prevention.

[0035] An alarm 142 is fixedly installed on the front of the door 140. The alarm 142 is electrically connected to the interior of the enclosure 100. The alarm 142 is designed to provide an alarm in case of an accident.

[0036] Alarm 142 employs an audible and visual alarm device, electrically connected via wires to temperature sensors, current sensors, etc. (not shown) inside the enclosure. When the sensors detect abnormalities such as inverter overheating, short circuits, or leakage, alarm 142 is triggered to emit sound and light signals, alerting staff to handle the situation promptly. This provides real-time fault warnings, preventing abnormal situations from escalating into equipment damage or safety accidents, and improving operational and maintenance response efficiency.

[0037] An insulating pad is installed on the inner side of the shock-absorbing plate 450 to stably clamp the inverter body 200. The insulating pad is made of rubber or silicone and is fixed to the inner side of the shock-absorbing plate 450 by adhesive. Its surface has anti-slip texture. When the shock-absorbing plate 450 clamps the inverter body 200, the insulating pad is in direct contact with the inverter shell, which increases friction to prevent the inverter from shaking and blocks current conduction through the insulating material. The insulating pad improves clamping stability and prevents the inverter from shifting during vibration; at the same time, it has an insulating function to prevent leakage current from being conducted to the enclosure through the shock-absorbing plate 450, thereby improving electrical safety.

[0038] The outer protective frame 300 is designed to provide rain protection for the top and sides of the enclosure 100. The outer protective frame 300 combines a metal frame with rainproof materials (such as color steel plates). Its top dimension is larger than the top of the enclosure 100, and it extends to the middle of the sides of the enclosure, forming an "umbrella-shaped" covering structure. When rain falls, it is blocked by the top and sides of the protective frame and drips along the edges of the frame to the outside of the enclosure. Compared to a protective structure that only covers the top, comprehensive coverage of the top and sides of the enclosure effectively blocks oblique rainwater or splashes, further improving the rainproof effect and protecting the enclosure and internal inverter from rainwater corrosion.

[0039] The cooling water pipe 420 extends in a serpentine shape and fits against the outer wall of the inverter body 200 to increase the heat exchange area and enhance heat dissipation. The cooling water pipe 420 is made of copper or aluminum and is fitted to the outer wall of the inverter body 200 via a serpentine bending design (continuous U-shaped bends). The pipe and the outer shell are bonded together with thermally conductive silicone. As the cooling water in the cooling water tank 410 flows through the pipe, it makes full contact with the inverter shell through the serpentine structure, absorbing heat. The serpentine design significantly increases the contact area between the cooling water pipe 420 and the inverter, improving heat exchange efficiency, enhancing heat dissipation, and preventing performance degradation due to localized overheating.

[0040] When in use, this protective structure for a photovoltaic inverter utilizes an outer protective frame 300 to shield the housing 100 from rain, a protective assembly 400 to provide multi-functional protection for the internal inverter body 200, a cooling water tank 410 to provide heat dissipation protection for the interior of the housing 100, increasing the heat dissipation area, improving heat dissipation efficiency, and preventing overheating, cooling water pipes 420 to guide the flow of cooling water to cool the internal environment, and a water valve 430 to facilitate the flow of cooling water. A vertical bracket 440 and a shock-absorbing plate 450 clamp and fix the inverter body 200, with an insulating pad on the inner side of the shock-absorbing plate 450 for stable clamping of the inverter body. Simultaneously, a shock-absorbing spring 460 reduces damage to electronic components from vibration and impact. The mounting bracket 411 is used to install and operate the cooling fan 600. The rotating motor 500 drives the cooling fan 600 to rotate and provide airflow to the interior of the enclosure 100. The mounting rack 110 is used to install and operate the inverter body 200. The grounding pin 111 is used to prevent the accumulation of static electricity and to discharge static electricity. The water channel 120 is used to facilitate the introduction of cooling water into the cooling water pipe 420. The water channel 120 is provided with two sets for easy drainage and replacement of cooling water. The drain hole 130 is provided to prevent water from entering the inverter. The enclosure door 140 is provided to facilitate maintenance and repair work inside the enclosure 100. The ventilation window 141 is provided to facilitate ventilation inside the enclosure 100. The alarm 142 is provided to provide alarm prompts in case of accidents.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention 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; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A protective structure for a photovoltaic power generation inverter, characterized in that, The device includes a housing, an inverter body, an outer protective frame, and protective components. The inverter body is detachably installed inside the housing, the outer protective frame is placed on top of the housing, and the protective components are fixedly installed inside the housing. The protective assembly includes a cooling water tank, a cooling water pipe, a water valve, a vertical support, a shock-absorbing plate, and a shock-absorbing spring. The cooling water tank is fixedly installed on one side of the interior of the placement box, the cooling water pipe is fixedly connected to the top of the cooling water tank, the water valve is fixedly installed on the top of the placement box, the vertical support is fixedly installed on both sides of the interior of the placement box, the shock-absorbing plate is movably installed on the inner side of the vertical support, and the shock-absorbing spring is fixedly installed between the vertical support and the shock-absorbing plate.

2. The protective structure for a photovoltaic power generation inverter according to claim 1, characterized in that, A mounting bracket is fixedly installed above the cooling water tank. A rotating motor is fixedly installed on the back of the mounting bracket. A cooling fan is rotatably installed on one side of the mounting bracket. The output end of the rotating motor is connected to the cooling fan.

3. The protective structure for a photovoltaic power generation inverter according to claim 2, characterized in that, The placement box is equipped with a detachable placement rack inside. A grounding pin is fixedly installed below the placement rack. There are at least two sets of grounding pins, and each set of grounding pins has the same size and specifications.

4. The protective structure for a photovoltaic power generation inverter according to claim 3, characterized in that, The top of the placement box is provided with a water channel, which is connected to the cooling water pipe, and the water valve is fixedly installed above the water channel.

5. The protective structure for a photovoltaic power generation inverter according to claim 4, characterized in that, The bottom of the placement box is provided with drainage holes, and there are at least two sets of drainage holes, with each set of drainage holes being the same size.

6. The protective structure for a photovoltaic power generation inverter according to claim 5, characterized in that, The front of the placement box is equipped with a door, and a ventilation window is provided on one side of the placement box.

7. The protective structure for a photovoltaic power generation inverter according to claim 6, characterized in that, An alarm is fixedly installed on the front of the box door, and the alarm is electrically connected to the interior of the box.

8. The protective structure for a photovoltaic power generation inverter according to claim 7, characterized in that, An insulating pad is provided on the inner side of the shock-absorbing plate.

9. The protective structure for a photovoltaic power generation inverter according to claim 8, characterized in that, The structure of the outer protective frame is adapted to provide rain protection for the top and sides of the placement box.

10. The protective structure for a photovoltaic power generation inverter according to claim 9, characterized in that, The cooling water pipe extends in a serpentine shape and fits against the outer wall of the inverter body.

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