Photovoltaic inverter

Abstract

The utility model provides a photovoltaic inverter. The photovoltaic inverter comprises a shell, a photovoltaic panel, an energy storage assembly and an inversion assembly. Wherein the photovoltaic panel is arranged in the shell and is attached to the inner surface of the shell; the energy storage assembly is electrically connected with the photovoltaic panel and comprises a fixing piece and a plurality of energy storage pieces, the fixing piece is arranged in the shell and attached to the photovoltaic panel, and the fixing piece is fixedly connected with the energy storage pieces; and the inversion assembly is arranged in the shell, is electrically connected with the energy storage assembly, and is used for converting the direct current generated by the energy storage assembly into alternating current and outputting the alternating current. According to the photovoltaic inverter provided by the invention, redundant electric energy can be stored by arranging the energy storage assembly, and a system can balance power supply and demand by releasing the electric energy stored in the energy storage assembly under the condition of continuous high-intensity illumination or no illumination for a long time, so that stable operation of the system is ensured. The energy storage assembly can adjust storage and release of electric energy according to actual requirements.

Description

Technical Field

[0001] The present application relates to the field of inverters, and in particular to a photovoltaic inverter. Background Art

[0002] As a vital part of photovoltaic power generation system, photovoltaic inverter is widely used in household, commercial and industrial fields. Its main function is to convert the direct current generated by solar photovoltaic panels into alternating current to meet the power supply of the grid or connect to the household electrical system. With the rapid development and application promotion of solar photovoltaic technology, the performance and function of photovoltaic inverter are also constantly improving to meet the needs of different scales and application scenarios.

[0003] Traditional photovoltaic inverters usually convert solar energy into direct current through solar photovoltaic panels, and then the inverter converts the direct current generated by the photovoltaic panels into alternating current. The AC output of the inverter is connected to the grid or load. The alternating current can be directly supplied to the grid or used to provide power for home, commercial or industrial equipment. The inverter is also equipped with protection functions such as overload protection and over-temperature protection to ensure the safe operation of the system.

[0004] Although photovoltaic inverters have made significant progress in providing power conversion and protection functions, there are still some problems in dealing with uneven power generation. Traditional inverter designs are often unable to effectively cope with continuous high-intensity sunlight or long periods of no sunlight, causing the inverter to limit power generation or even stop operating, reducing the stability and reliability of the system. Utility Model Content

[0005] In view of this, it is necessary to provide a photovoltaic inverter that can store and release electricity according to different lighting conditions to solve the above problems.

[0006] An embodiment of the present application provides a photovoltaic inverter, comprising:

[0007] case;

[0008] A photovoltaic panel is disposed in the shell and is attached to the inner surface of the shell;

[0009] An energy storage component, electrically connected to the photovoltaic panel, comprising a fixing member and a plurality of energy storage members, wherein the fixing member is disposed in the housing and fits the photovoltaic panel, and the fixing member is fixedly connected to the plurality of energy storage members;

[0010] The inverter assembly is arranged in the shell and is electrically connected to the energy storage assembly, and is used to convert the direct current generated by the energy storage assembly into alternating current output.

[0011] In at least one embodiment of the present application, the fixing member includes a first part and a second part, one side of the first part is attached to the inner surface of the shell, and the other side is fixedly connected to the second part, the second part is provided with a plurality of positioning holes, and each of the energy storage members is arranged in each of the positioning holes.

[0012] In at least one embodiment of the present application, the fixing member further includes a plurality of limit blocks, and the plurality of limit blocks are disposed in the positioning hole and are equidistantly arranged along the inner circumference of the positioning hole.

[0013] In at least one embodiment of the present application, the energy storage component includes two fixing members, and the two fixing members are symmetrically arranged along the vertical direction with the midpoint of the energy storage member as a symmetry point.

[0014] In at least one embodiment of the present application, the photovoltaic inverter includes two energy storage components, and the two energy storage components are electrically connected.

[0015] In at least one embodiment of the present application, a plurality of the positioning holes are arranged in an array on the second portion, and when a plurality of the energy storage components are disposed in the plurality of the positioning holes, a gap is formed between each of the energy storage components.

[0016] In at least one embodiment of the present application, the photovoltaic inverter further includes an indicator, which includes a plurality of LED lamp beads arranged side by side, and the LED lamp beads are electrically connected to the photovoltaic panel to indicate the working status of the photovoltaic panel.

[0017] In at least one embodiment of the present application, the photovoltaic inverter further includes a fixing component, wherein the fixing component is disposed on the shell, a locking block is provided on the shell, the locking block locks the fixing component, and the fixing component is used to fix the position of the photovoltaic inverter.

[0018] In at least one embodiment of the present application, the photovoltaic inverter further includes an AC protector, which is disposed in the housing and electrically connected to an output terminal of the photovoltaic inverter to protect normal operation of the circuit.

[0019] In at least one embodiment of the present application, the shell is a transparent material layer.

[0020] The photovoltaic inverter provided above can store excess electrical energy by setting up an energy storage component. In the case of continuous high-intensity light or long-term no light, the system can balance the supply and demand of electricity by releasing the electrical energy stored in the energy storage component to ensure the stable operation of the system. The existence of the energy storage component makes the system more flexible and can adjust the storage and release of electrical energy according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a three-dimensional diagram of a photovoltaic inverter in one embodiment of the present application.

[0022] Figure 2 for Figure 1 A partially disassembled and enlarged view of a photovoltaic inverter.

[0023] Figure 3 for Figure 1 A top view of a photovoltaic inverter.

[0024] Figure 4 for Figure 1 A second structural diagram of a fixing component of a photovoltaic inverter.

[0025] Main component symbols

[0026] 100. A photovoltaic inverter; 10. A housing; 11. A snap-fit ​​block; 20. A photovoltaic panel; 30. An energy storage component; 31. A fixing member; 311. A first portion; 312. A second portion; 312a. A positioning hole; 313. A limit block; 32. An energy storage component; 40. An inverter component; 50. An indicator; 60. A fixing component; 70. An AC protector. DETAILED DESCRIPTION

[0027] The embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0028] It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "located on" another component, it may be directly located on the other component or there may be a central component at the same time. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and similar expressions used herein are for illustrative purposes only.

[0029] An embodiment of the present application provides a photovoltaic inverter, characterized in that it includes:

[0030] case;

[0031] A photovoltaic panel is disposed in the shell and is attached to the inner surface of the shell;

[0032] An energy storage component, electrically connected to the photovoltaic panel, comprising a fixing member and a plurality of energy storage members, wherein the fixing member is disposed in the housing and fits the photovoltaic panel, and the fixing member is fixedly connected to the plurality of energy storage members;

[0033] The inverter assembly is arranged in the shell and is electrically connected to the energy storage assembly, and is used to convert the direct current generated by the energy storage assembly into alternating current output.

[0034] The photovoltaic inverter provided above can store excess electrical energy by setting up an energy storage component. In the case of continuous high-intensity light or long-term no light, the system can balance the supply and demand of electricity by releasing the electrical energy stored in the energy storage component to ensure the stable operation of the system. The existence of the energy storage component makes the system more flexible and can adjust the storage and release of electrical energy according to actual needs.

[0035] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0036] See also Figure 1-Figure 4 An embodiment of the present application provides a photovoltaic inverter 100 , including a housing 10 , a photovoltaic panel 20 , an energy storage component 30 , and an inverter component 40 .

[0037] Among them, the photovoltaic panel 20 is arranged in the shell 10 and fits the inner surface of the shell 10; the energy storage component 30 is electrically connected to the photovoltaic panel 20, including a fixing part 31 and a plurality of energy storage parts 32, the fixing part 31 is arranged in the shell 10 and fits the photovoltaic panel 20, and the fixing part 31 is fixedly connected to the plurality of energy storage parts 32; the inverter component 40 is arranged in the shell 10 and electrically connected to the energy storage component 30, and is used to convert the direct current generated by the energy storage component 30 into alternating current output.

[0038] Specifically, the housing 10 is the external protection structure of the photovoltaic inverter, which can not only withstand the adverse effects of the external environment, but also carry internal electronic components and circuit boards. The housing 10 can ensure that the internal circuit of the inverter is protected from external factors such as water, dust, and vibration, and ensure the stable operation of the equipment. The energy storage component 30 is used to receive direct current from the photovoltaic panel 20 and release electrical energy when needed to meet the load demand. The energy storage component 30 enables the system to have the ability to store electrical energy, and can convert excess solar energy into electrical energy for storage to cope with weather changes, load demand fluctuations, etc., thereby improving the stability and reliability of the system.

[0039] Furthermore, the fixing member 31 is used to firmly install the energy storage member 32 inside the inverter to prevent it from being disturbed by external forces. The energy storage member 32 is used to store electrical energy. The fixing member 31 ensures that the energy storage component 30 is firmly installed inside the inverter, reducing the risk of component damage; the energy storage member 32 provides the function of electrical energy storage, enhancing the flexibility and adjustability of the system. The inverter component 40 converts the DC power generated by the energy storage component 30 into AC power output. The inverter component 40 converts the stored DC power into usable AC power to meet the needs of various AC loads and realize the energy utilization and application of the photovoltaic system.

[0040] In summary, solar energy is converted into direct current through the photovoltaic panel 20, and the direct current is connected to the energy storage component 30 through an electrical connection. The energy storage component 30 stores excess electrical energy, and the inverter component 40 converts the direct current generated by the energy storage component 30 into alternating current for output. In the case of continuous high-intensity illumination or long-term lack of illumination, the system can balance the supply and demand of electricity by releasing the electrical energy stored in the energy storage component 30 to ensure the stable operation of the system. The existence of the energy storage component 30 makes the system more flexible, and the storage and release of electrical energy can be adjusted according to actual needs.

[0041] In a specific embodiment, the fixing member 31 includes a first part 311 and a second part 312, one side of the first part 311 is attached to the inner surface of the shell 10, and the other side is fixedly connected to the second part 312, and the second part 312 is provided with a plurality of positioning holes 312a, and each of the energy storage members 32 is arranged in each of the positioning holes 312a.

[0042] Specifically, the first part 311 and the second part 312 constitute the main structure of the fixing part 31, which is used to fix the position of the energy storage component 30 inside the photovoltaic inverter. This structural design enables the fixing part 31 to have stronger stability and load-bearing capacity, ensuring the stable operation of the system. One side of the first part 311 fits tightly against the inner surface of the shell 10 to ensure a tight fit between the fixing part 31 and the shell 10; the other side is fixedly connected to the second part 312, enhancing the overall structural stability of the fixing part 31. Through the tight fit with the shell 10 and the fixed connection with the second part 312, the fixing part 31 can be firmly fixed inside the inverter, effectively preventing movement or loosening during the operation of the equipment.

[0043] In another embodiment, the first portion 311 is threadedly fixed to the housing 10 .

[0044] Furthermore, the plurality of positioning holes 312a provided on the second portion 312 are used to receive the energy storage assembly 30, ensuring that the energy storage assembly 30 can be accurately positioned inside the inverter. The presence of the positioning holes 312a enables the energy storage assembly 30 to be accurately mounted on the fixing member 31, improving the accuracy and stability of the installation, and also facilitating the maintenance and replacement of the energy storage assembly 30. Each energy storage member 32 is mounted in a corresponding positioning hole 312a to ensure its accurate position and firm fixation.

[0045] Furthermore, each energy storage component 32 is precisely installed in the positioning hole 312a of the fixing member 31, which effectively prevents mutual interference and collision between the energy storage components 30, and ensures the stability and reliability of the system. Through the above design, the fixing member 31 can ensure that the energy storage component 30 is firmly fixed inside the inverter, and each energy storage component 30 is accurately positioned, thereby improving the stability and reliability of the system.

[0046] In a specific embodiment, the fixing member 31 further includes a plurality of limit blocks 313 , and the plurality of limit blocks 313 are disposed in the positioning hole 312 a and are equidistantly arranged along the inner circumference of the positioning hole 312 a .

[0047] Specifically, the limit block 313 is a part of the fixing member 31, and is used to limit the movement range of the energy storage assembly 30 in the positioning hole 312a to ensure its accurate positioning on the fixing member 31. By setting the limit block 313, the energy storage assembly 30 can be effectively prevented from accidentally moving or misaligning during the operation of the inverter. The limit block 313 is directly installed in the positioning hole 312a and contacts the energy storage assembly 30 to play a limiting and guiding role. The limit block 313 is installed in the positioning hole 312a so that the limit block 313 is in direct contact with the energy storage assembly 30, which can more accurately control the position of the energy storage assembly 30 and prevent it from deviating from the predetermined position, thereby improving the safety and stability of the system.

[0048] Furthermore, when the energy storage component 32 is mounted on the fixing member 31, the limit block 313 is located around the positioning hole 312a and contacts the bottom of the energy storage component 32. This contact can not only limit the range of movement of the energy storage component 32, but also provide a stable support for it to prevent the energy storage component 32 from swinging or shifting due to external vibration or other factors. Through the supporting effect of the limit block 313, the energy storage component 32 can be firmly fixed inside the inverter to ensure the stability and reliability of the system.

[0049] In a specific embodiment, the energy storage component 30 includes two fixing members 31 , and the two fixing members 31 are symmetrically arranged along the vertical direction with the midpoint of the energy storage member 32 as a symmetrical point.

[0050] Specifically, the energy storage component 30 is composed of two fixings 31, which are key supporting components for fixing the energy storage component 32. By setting the two fixings 31, the stability and reliability of the energy storage component 30 can be increased, ensuring the stable installation of the energy storage component 32 inside the inverter, and preventing accidental movement or dislocation during the operation of the equipment. The two fixings 31 are symmetrically arranged in the vertical direction with the midpoint of the energy storage component 32 as the symmetry point, so that the weight of the energy storage component 30 can be balanced, thereby improving the stability of the entire system. By symmetrically arranging the fixings 31, the force on the energy storage component 30 in the vertical direction can be balanced, avoiding the tilting or loosening of the energy storage component 30 due to the unstable center of gravity, and ensuring the safe and stable operation of the system.

[0051] In a specific embodiment, the photovoltaic inverter includes two energy storage components 30 , and the two energy storage components 30 are electrically connected.

[0052] Specifically, the photovoltaic inverter includes two energy storage components 30, which are the core components of the system for storing electrical energy. By increasing the number of energy storage components 30, the capacity and stability of the system energy storage can be improved, and the system's ability to store and release electrical energy can be increased, thereby meeting a wider range of energy needs. The two energy storage components 30 are electrically connected to form a closed circuit loop to achieve the transmission and sharing of electrical energy, improve the stability and reliability of the system, and also increase the system's storage capacity and flexibility for electrical energy.

[0053] In a specific embodiment, the plurality of positioning holes 312 a are arranged in an array on the second portion 312 , and when the plurality of energy storage elements 32 are disposed in the plurality of positioning holes 312 a , gaps are formed between each of the energy storage elements 32 .

[0054] Specifically, a plurality of positioning holes 312a are provided on the second portion 312, and these positioning holes 312a are arranged in an array for accurately positioning and installing the energy storage component 32. The positioning holes 312a arranged in an array can provide a variety of installation position options, so that the energy storage component 30 can be flexibly configured according to actual needs, thereby enhancing the adjustability and applicability of the system. When a plurality of energy storage components 32 are installed in a plurality of positioning holes 312a, a certain gap will be formed between each energy storage component 32 due to the arrangement of the positioning holes 312a and the size of the energy storage component 32.

[0055] In a specific embodiment, the energy storage component 32 is a lead-acid battery.

[0056] Furthermore, the gaps formed are helpful for heat dissipation and ventilation, preventing heat accumulation between the energy storage components 32, thereby improving the safety and stability of the system. In addition, the gaps can also reduce mutual interference and friction between the energy storage components 32, protecting the safe and stable operation of the energy storage components 32.

[0057] In a specific embodiment, the photovoltaic inverter further includes an indicator 50 , and the indicator 50 includes a plurality of LED lamp beads arranged side by side. The LED lamp beads are electrically connected to the photovoltaic panel 20 to indicate the working status of the photovoltaic panel 20 .

[0058] Specifically, the LED lamp beads are used as indicator lights to display the working status of the photovoltaic panel 20, such as normal operation, failure, and shutdown of the photovoltaic panel 20. The LED lamp beads have the characteristics of low power consumption, high brightness, and long life, and can clearly and intuitively indicate the operating status of the photovoltaic panel 20, helping users to understand the working status of the system in a timely manner, facilitating timely handling of abnormal situations, and ensuring the stable operation of the system.

[0059] Furthermore, the LED lamp beads are electrically connected to the photovoltaic panel 20, and the connection and control with the photovoltaic panel 20 are realized through the circuit. Through the electrical connection with the photovoltaic panel 20, the LED lamp beads can be turned on and off according to the real-time changes in the working state of the photovoltaic panel 20, intuitively reflecting the operation of the photovoltaic panel 20, and improving the user's perception of the system state.

[0060] In a specific embodiment, when the photovoltaic panel 20 is working normally, the LED lamp bead lights up with a green indicator light, indicating that the system is working normally. When the photovoltaic panel 20 fails, the LED lamp bead lights up with a yellow indicator light, prompting the user that an abnormal situation has occurred. When the photovoltaic panel 20 stops working, the LED lamp bead lights up with a red indicator light, prompting the user that the system has stopped working. The user can judge the working condition of the system by observing the status of the LED lamp bead, and take timely measures to deal with the abnormality to ensure the stable operation of the system.

[0061] In a specific embodiment, the photovoltaic inverter further includes a fixing component 60, which is disposed on the shell 10. The shell 10 is provided with a snap block 11, and the snap block 11 snaps into the fixing component 60. The fixing component 60 is used to fix the position of the photovoltaic inverter.

[0062] Specifically, the main function of the fixing assembly 60 is to firmly fix the entire photovoltaic inverter device to a desired location, such as a wall, bracket or other structure. By firmly fixing the inverter to an external location through the fixing assembly 60, the inverter can be prevented from moving or swaying due to external vibrations or other factors, thereby enhancing the stability of the system. The design and installation of the fixing assembly 60 can ensure that the inverter is firmly fixed in a suitable position, prevent the inverter from accidentally falling or moving, and reduce safety risks. The design of the fixing assembly 60 is intended to simplify the installation process, allowing installers to easily and quickly install the inverter in the desired location, thereby improving installation efficiency.

[0063] In a specific embodiment, the photovoltaic inverter further includes an AC protector 70 , which is disposed in the housing 10 and electrically connected to the output end of the photovoltaic inverter to protect the normal operation of the circuit.

[0064] Specifically, the AC protector 70 is placed inside the housing 10 of the inverter for easy installation and protection. Installing the AC protector 70 inside the housing 10 can reduce the impact of the external environment on it, improve the stability and reliability of the protector, and also contribute to the neat appearance of the entire inverter system. The AC protector 70 is electrically connected to the output end of the photovoltaic inverter for monitoring and protecting the output circuit of the inverter. By being electrically connected to the output end, the AC protector 70 can monitor the state of the inverter output circuit in real time, detect and respond to abnormal situations in a timely manner, and protect the normal operation of the circuit.

[0065] Furthermore, the main function of the AC protector 70 is to protect the circuit of the photovoltaic inverter, prevent overload, short circuit and other problems, and ensure the normal operation of the circuit. The AC protector 70 can quickly respond to circuit abnormalities and protect the inverter and other related equipment by cutting off the circuit or taking other measures, avoiding damage or safety accidents caused by circuit failures, and improving the reliability and safety of the system.

[0066] Specifically, when the photovoltaic inverter output circuit is overloaded, short-circuited or in other abnormal conditions, the AC protector 70 will immediately sense these problems. According to the preset protection mechanism, the AC protector 70 may take corresponding measures, such as cutting off the circuit, reducing the output power, etc., to protect the safe operation of the inverter and other related equipment. When the problem is solved, the AC protector 70 will resume normal working state to ensure the normal operation of the circuit.

[0067] In a specific embodiment, the housing 10 is a transparent material layer.

[0068] Specifically, the transparent shell 10 allows sunlight to pass through and directly illuminate the photovoltaic panel 20 inside the shell 10. The photovoltaic panel 20 can generate electrical energy after receiving sunlight, thereby providing power to the photovoltaic inverter to realize the function of electrical energy conversion.

[0069] Furthermore, the housing 10, as the outer shell of the photovoltaic inverter, is made of a transparent material so that the internal components can be clearly seen. The housing 10 made of a transparent material allows the user to directly observe the working conditions inside the photovoltaic inverter, such as the operating status of the components, the connection status, etc., thereby improving the user's understanding and perception of the system operating status.

[0070] The above is only an implementation method of the present application. It should be pointed out that a person skilled in the art can make improvements without departing from the inventive concept of the present application, but these improvements are within the scope of protection of the present application.

Claims

1. A photovoltaic inverter, characterized in that: include: case; A photovoltaic panel is disposed in the shell and is attached to the inner surface of the shell; An energy storage component, electrically connected to the photovoltaic panel, comprising a fixing member and a plurality of energy storage members, wherein the fixing member is disposed in the housing and fits the photovoltaic panel, and the fixing member is fixedly connected to the plurality of energy storage members; The inverter assembly is arranged in the shell and is electrically connected to the energy storage assembly, and is used to convert the direct current generated by the energy storage assembly into alternating current output.

2. A photovoltaic inverter according to claim 1, characterized in that: The fixing member includes a first part and a second part. One side of the first part is attached to the inner surface of the shell, and the other side is fixedly connected to the second part. The second part is provided with a plurality of positioning holes, and each of the energy storage members is arranged in each of the positioning holes.

3. A photovoltaic inverter according to claim 2, characterized in that: The fixing member further comprises a plurality of limit blocks, which are arranged in the positioning hole and are arranged at equal distances along the inner circumference of the positioning hole.

4. A photovoltaic inverter according to claim 3, characterized in that: The energy storage component includes two fixing members, and the two fixing members are symmetrically arranged along the vertical direction with the midpoint of the energy storage member as the symmetry point.

5. A photovoltaic inverter according to claim 4, characterized in that: The photovoltaic inverter includes two energy storage components, and the two energy storage components are electrically connected.

6. A photovoltaic inverter according to claim 3, characterized in that: The plurality of positioning holes are arranged in an array on the second portion, and when the plurality of energy storage components are disposed in the plurality of positioning holes, gaps are formed between each of the energy storage components.

7. A photovoltaic inverter according to claim 1, characterized in that: The photovoltaic inverter further includes an indicator, which includes a plurality of LED lamp beads arranged side by side. The LED lamp beads are electrically connected to the photovoltaic panel and are used to indicate the working status of the photovoltaic panel.

8. The photovoltaic inverter according to claim 1, characterized in that: The photovoltaic inverter further comprises a fixing component, wherein the fixing component is arranged on the shell, and a snap block is arranged on the shell, and the snap block snaps the fixing component, and the fixing component is used to fix the position of the photovoltaic inverter.

9. The photovoltaic inverter according to claim 1, characterized in that: The photovoltaic inverter further includes an AC protector, which is disposed in the housing and electrically connected to the output end of the photovoltaic inverter to protect the normal operation of the circuit.

10. The photovoltaic inverter according to claim 1, characterized in that: The shell is a transparent material layer.

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