Inverter
By optimizing the internal component layout of the inverter and rationally arranging components such as power modules, DC switching components, and AC switching components, the problems of loose structure and low power density of existing inverters have been solved, and a compact and efficient inverter design has been achieved.
Patent Information
- Application Number
- CN202423062028.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-11
AI Technical Summary
Existing inverters have a loose structure, large overall size, and low power density, which cannot meet the requirements of high power ratings and compact designs.
The inverter's power module is located on the upper left side of the front half of the enclosure, the DC switch assembly is located directly below the power module, the AC switch assembly is located on the lower right side of the enclosure, and the bus capacitors and magnetic components are located in their respective positions to optimize the layout, ensure the shortest power flow path, and modularize the components.
This design achieves a compact and high-power-density inverter, improving space utilization and ease of installation and operation, while ensuring circuit stability and power quality.
Smart Images
Figure CN223843682U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power electronics technology, and in particular to an inverter. Background Technology
[0002] With the rapid development of industry, large-scale power electronic equipment is being used more and more widely in various industries. The requirements for inverter power rating and power density are getting higher and higher, and at the same time, the requirements for inverter structural compactness and assembly efficiency are also getting higher and higher. However, the existing inverter structure is relatively loose, the overall size is large, the power density is low, and the structure is not compact, which cannot meet the needs of use.
[0003] Therefore, there is an urgent need to develop an inverter with a compact structure and high power density. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an inverter with a compact structure and high power density, thereby solving the aforementioned technical problems.
[0005] An inverter includes: a housing, a power module disposed within the housing, a DC switch assembly and an AC switch assembly electrically connected to the power module, wherein the power module is disposed on the left side of the upper front half of the housing, the DC switch assembly is disposed directly below the power module within the housing, and the AC switch assembly is disposed on the lower right side of the housing.
[0006] Preferably, the enclosure is further provided with a bus capacitor, which is located directly behind the power module, and its two ends are electrically connected to the DC switch assembly and the power module, respectively.
[0007] Preferably, the housing is further provided with a magnetic element, which is located directly behind the DC switch assembly, and the two ends of the magnetic element are electrically connected to the AC switch assembly and the power module, respectively.
[0008] Preferably, the aforementioned AC switch assembly is disposed on the right side of the magnetic element.
[0009] Compared with the prior art, this utility model has the following advantages: The power module of the inverter heat exchanger is located on the left side of the upper front half of the housing, the DC switch assembly is located directly below the power module inside the housing, and the AC switch assembly is located in the lower right part of the housing. This arrangement facilitates the wiring of the DC switch assembly and the AC switch assembly to the power module, resulting in a compact structure, high power density, and small size. It ensures the shortest power flow path and improves the utilization rate of space inside the housing. Furthermore, this arrangement facilitates the external wiring of the DC switch assembly and the AC switch assembly at the bottom of the housing, making installation and operation convenient. Attached Figure Description
[0010] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention.
[0011] Figure 1 This is a schematic diagram of the main structure of an inverter according to this utility model;
[0012] Figure 2 This is a side view of an inverter according to the present invention.
[0013] Figure 3 This is a rear view structural diagram of an inverter according to the present invention. Detailed Implementation
[0014] The present invention will be further described in conjunction with the following embodiments and accompanying drawings:
[0015] An inverter, such as Figures 1 to 3 As shown, it includes: a housing 10, a power module 11 disposed inside the housing 10, a DC switch assembly 12 and an AC switch assembly 13 electrically connected to the power module 11 respectively. The power module 11 is disposed on the left side of the upper front half of the housing 10, the DC switch assembly 12 is disposed directly below the power module 11 inside the housing 10, and the AC switch assembly 13 is disposed on the lower right side of the housing 10.
[0016] Specifically, the direction of external current flow can be determined as needed. For example, external AC power enters from the AC switch assembly 13 side, is converted into DC power by the power module 11, and finally the DC power is output from the DC switch assembly 12 to supply power to the outside; or, external DC power is input from the DC switch assembly 12, is converted into AC power by the power module 11, and finally the AC power is output from the AC switch assembly 13 to supply power to the outside.
[0017] The DC switch assembly 12 can control the on / off of the DC side connection circuit of the power module 11, and the AC switch assembly 13 can control the on / off of the AC side connection circuit of the power module 11. This ensures that when the DC side circuit or AC side circuit of the power module 11 malfunctions or other situations require power disconnection, the power supply can be cut off in a timely manner through the DC switch assembly 12 or the AC switch assembly 13, thereby protecting the power module 11.
[0018] The power module 11 of the inverter heat exchanger of this utility model is located on the left side of the upper front half of the housing 10. The DC switch assembly 12 is located directly below the power module 11 inside the housing 10, and the AC switch assembly 13 is located in the lower right part of the housing 10. This arrangement facilitates the wiring of the DC switch assembly 12 and the AC switch assembly 13 to the power module 11, resulting in a compact structure, high power density, and small size. It ensures the shortest power flow path and improves the utilization rate of the space inside the housing 10. Furthermore, this arrangement facilitates the external wiring of the DC switch assembly 12 and the AC switch assembly 13 at the bottom of the housing 10, making installation and operation convenient.
[0019] Better, such as Figures 1 to 3 As shown, a bus capacitor 14 is also installed inside the housing 10. The bus capacitor 14 is located directly behind the power module 11, and its two ends are electrically connected to the DC switch assembly 12 and the power module 11, respectively. That is, the bus capacitor 14 connects the DC switch assembly 12 and the power module 11.
[0020] The bus capacitor 14 can be a conventional bus capacitor 14. By placing the bus capacitor 14 between the DC switching assembly 12 and the power module 11, it can store and release charge, thereby smoothing the DC power supply of the inverter, reducing DC power fluctuations, and ensuring the stability of the output AC power. The bus capacitor 14 can also filter out high-frequency noise, making the DC power supply cleaner, thereby improving the output quality of the inverter. In addition, by absorbing changes in the electron flow in the circuit, the bus capacitor 14 can maintain the stability of the circuit, while preventing excessive voltage and current, thereby protecting the power module 11 in the inverter.
[0021] The bus capacitor 14 is located directly behind the power module 11. It has a compact structure and modular components, which makes it easy for the bus capacitor 14 to be connected to the DC switch assembly 12 and the power module 11 respectively, and the connection lines are short.
[0022] Better, such as Figure 2 and Figure 3 As shown, a magnetic element 15 is also provided inside the housing 10. The magnetic element 15 is located directly behind the DC switch assembly 12, and its two ends are electrically connected to the AC switch assembly 13 and the power module 11, respectively. That is, the magnetic element 15 is connected between the AC switch assembly 13 and the power module 11.
[0023] Specifically, the magnetic element 15 typically consists of windings and a magnetic core, and is an essential device for energy storage, energy conversion, and electrical isolation, serving as a voltage regulator and step-down mechanism. The magnetic element 15 can be an inductor or transformer, as per existing technology.
[0024] The magnetic component 15 is located directly behind the DC switching assembly 12. The modular design of the components results in a very compact and rational structure, leading to a small overall inverter size and high power density. The location of the magnetic component 15 directly behind the DC switching assembly 12 facilitates its oblique connection to the power module 11. Since both the magnetic component 15 and the AC switching assembly 13 are located at the bottom of the housing 10, the connection between them is convenient, resulting in short wiring, low cost, and short power flow paths.
[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. An inverter, characterized in that, include: The enclosure comprises a power module disposed within the enclosure, a DC switch assembly and an AC switch assembly electrically connected to the power module, wherein the power module is disposed on the left side of the upper front half of the enclosure, the DC switch assembly is disposed directly below the power module within the enclosure, and the AC switch assembly is disposed on the lower right side of the enclosure.
2. The inverter according to claim 1, characterized in that: The enclosure also contains a bus capacitor, which is located directly behind the power module. The two ends of the bus capacitor are electrically connected to the DC switch assembly and the power module, respectively.
3. An inverter according to claim 2, characterized in that: The enclosure also contains a magnetic element located directly behind the DC switch assembly. The two ends of the magnetic element are electrically connected to the AC switch assembly and the power module, respectively.
4. An inverter according to claim 3, characterized in that: The AC switch assembly is located on the right side of the magnetic element.