Housing structure of inverter of variable frequency generator

Abstract

The utility model relates to a variable frequency generator inverter housing structure comprising an inverter housing and an inverter arranged in the inverter housing, the rear side of the inverter housing is provided with an air inlet, and the inverter housing and the inverter are spaced to form a heat radiation channel. And the inner surface of the inverter shell is provided with a drainage groove for guiding airflow from the rear side of the inverter to the front side of the inverter. The utility model aims to provide the inverter shell structure of the variable frequency generator, which can well dissipate heat of the inverter, and solves the problem of poor heat dissipation effect of the existing inverter shell.

Description

Technical Field

[0001] This utility model relates to the field of inverter heat dissipation technology, and in particular to a housing structure for a variable frequency generator inverter. Background Technology

[0002] An inverter is a component in a variable frequency generator system, typically installed inside an inverter housing, which serves to protect the inverter. However, existing inverters suffer from poor heat dissipation due to the housing design. Utility Model Content

[0003] The present invention aims to provide a variable frequency generator inverter housing structure that can effectively dissipate heat from the inverter, thereby solving the problem of poor heat dissipation in existing inverter housings.

[0004] The following technical problem is solved by the following technical solution: A variable frequency generator inverter housing structure, comprising an inverter housing and an inverter disposed within the inverter housing, characterized in that an air inlet is provided on the rear side of the inverter housing, a heat dissipation channel is formed between the inverter housing and the inverter, and a flow guide groove is provided on the inner surface of the inverter housing to guide airflow from the rear side to the front side of the inverter. The heat dissipation channel enables sufficient heat dissipation from the circumference of the inverter, and the flow guide groove ensures smooth airflow and, as intended, from back to front, thereby improving the heat dissipation effect.

[0005] Preferably, the rear surface of the inverter is provided with several straight heat dissipation slats, and air ducts are formed between adjacent straight heat dissipation slats. The air ducts are located on the side walls of the inverter housing distributed along the extension direction of the straight heat dissipation slats. This can improve the heat dissipation effect, allowing the incoming cold air to flow smoothly from the rear surface of the inverter to the front surface, and making it less likely to cause air mixing.

[0006] Preferably, the straight heat dissipation slats extend in the left-right direction. This reduces the influence of temperature and gravity on airflow.

[0007] Preferably, the inner surface of the rear sidewall of the inverter housing is provided with several connecting pipes and several limiting protrusions. Inverter connecting bolts pass through the connecting pipes from the rear surface of the inverter housing and are threaded onto the inverter, fixing the inverter to the connecting pipes. The limiting protrusions are distributed above and below the inverter, and each limiting protrusion has heat dissipation holes connecting the inside and outside of the inverter housing. This ensures reliable fixing and allows air located on the front surface of the inverter to flow back from the upper and lower surfaces of the inverter and then dissipate out of the inverter housing. It also provides good heat dissipation.

[0008] Preferably, the inverter housing has a cable outlet hole on its rear surface, through which the inverter's wires are led out.

[0009] Preferably, the cable outlet is located at the lower end of the inverter housing. This reduces the impact of temperature on the wires.

[0010] Preferably, the front surface of the inverter housing is provided with a window, and the window is provided with an inverter cover plate.

[0011] Preferably, the front surface of the inverter housing has a limiting recess that matches the shape of the inverter cover plate. The window is disposed within the limiting recess, and the limiting recess has several limiting protrusions. The inverter cover plate has several limiting holes, and the limiting protrusions are correspondingly inserted into the limiting holes. This allows for convenient assembly.

[0012] Preferably, the limiting protrusion has heat dissipation holes that connect the inner and outer spaces of the inverter housing. This results in good heat dissipation.

[0013] Preferably, the system also includes an inverter support frame; the inverter housing includes a front cover and a rear cover, which are detachably connected together to form the inverter housing; the air inlet is connected to an air duct; the inverter support frame is detachably connected to the rear cover. This invention has the following advantages: it can both protect the inverter and provide good heat dissipation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the split state of this utility model;

[0015] Figure 2 This is a schematic diagram from one perspective of the present invention;

[0016] Figure 3 This is a schematic diagram from another perspective of the present invention;

[0017] Figure 4 This is a schematic diagram of the present invention after removing the front cover of the outer casing. In the diagram: 1. Inverter casing; 2. Inverter; 3. Air inlet; 4. Air duct; 5. Front cover of outer casing; 6. Rear cover of outer casing; 7. Airflow channel; 8. Straight heat sink; 9. Air duct; 10. Connecting pipe; 11. Limiting protrusion; 21. Inverter connecting bolt; 12. Heat dissipation hole of the limiting protrusion; 13. Cable outlet; 14. Window; 15. Cover plate connecting bolt; 16. Inverter cover plate; 17. Limiting recess; 18. Limiting protrusion; 19. Heat dissipation hole of the limiting protrusion; 20. Inverter support frame. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] See Figures 1 to 4 A variable frequency generator inverter housing structure includes an inverter housing 1 and an inverter 2 disposed within the inverter housing. An air inlet 3 is provided on the rear side of the inverter housing. An air duct 4 is detachably connected to the air inlet by bolts. The inverter housing includes a front cover 5 and a rear cover 6. The front and rear covers are detachably connected together by bolts to form the inverter housing. The rear cover is detachably connected to an inverter support frame 20 by bolts. Heat dissipation channels are formed between the six sides of the inverter housing and the inverter. An airflow channel 7 is provided on the inner surface of the right side of the inverter housing to guide airflow from the rear to the front of the inverter. Several straight heat dissipation slats 8 are provided on the rear surface of the inverter, with air ducts 9 formed between adjacent straight heat dissipation slats. The straight heat dissipation slats extend in the left-right direction. The inner surface of the rear wall of the inverter housing is provided with several connecting pipes 10 and several limiting protrusions 11. The inverter connecting bolts 21 pass through the connecting pipes from the rear surface of the inverter housing and are threaded onto the inverter to fix the inverter to the connecting pipes. The limiting protrusions are distributed on the upper and lower parts of the inverter, and the limiting protrusions are provided with limiting protrusion heat dissipation holes 12 that connect the inside and outside of the inverter housing. The rear surface of the inverter housing is provided with a cable outlet hole 13, through which the inverter's wires are led out. The cable outlet hole is located at the lower end of the inverter housing. The front surface of the inverter housing is provided with a window 14, which is detachably connected to the inverter cover plate 16 by cover plate connecting bolts 15. The front surface of the inverter housing is provided with a limiting recess 17 that matches the shape of the inverter cover plate. The window is set in the limiting recess, and the limiting recess is provided with several limiting protrusions 18. The inverter cover plate is provided with several limiting holes, and the limiting protrusions are correspondingly inserted into the limiting holes. The limiting protrusion has a heat dissipation hole 19 that connects the inner and outer spaces of the inverter housing.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, meaning that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A variable frequency generator inverter housing structure, comprising an inverter housing and an inverter disposed within the inverter housing, characterized in that, An air inlet is provided on the rear side of the inverter housing, and a heat dissipation channel is formed between the inverter housing and the inverter. The inner surface of the inverter housing is provided with a drainage groove to guide airflow from the rear side of the inverter to the front side of the inverter.

2. The inverter housing structure for a frequency converter according to claim 1, characterized in that, The inverter has several straight heat dissipation slats on its rear surface, and air ducts are formed between adjacent straight heat dissipation slats. The air ducts are located on the side walls of the inverter housing distributed along the extension direction of the straight heat dissipation slats.

3. The inverter housing structure for a frequency converter according to claim 2, characterized in that, The straight heat dissipation strip extends in the left-right direction.

4. The inverter housing structure for a frequency converter according to claim 3, characterized in that, The inner surface of the rear side wall of the inverter housing is provided with several connecting pipes and several limiting protrusions. The inverter connecting bolt passes through the connecting pipes from the rear surface of the inverter housing and is threaded onto the inverter to fix the inverter on the connecting pipes. The limiting protrusions are distributed above and below the inverter, and the limiting protrusions are provided with limiting protrusion heat dissipation holes that connect the inside and outside of the inverter housing.

5. A variable frequency generator inverter housing structure according to claim 1, 2, 3, or 4, characterized in that, The inverter housing has a cable outlet hole on its rear surface, through which the inverter's wires are led out.

6. The inverter housing structure for a frequency converter according to claim 5, characterized in that, The outlet hole is located at the lower end of the inverter housing.

7. A variable frequency generator inverter housing structure according to claim 1, 2, 3, or 4, characterized in that, The inverter housing has a window on its front surface, and the window is fitted with an inverter cover plate.

8. The inverter housing structure for a frequency converter according to claim 7, characterized in that, The front surface of the inverter housing is provided with a limiting recess that matches the shape of the inverter cover plate. The window is located in the limiting recess. The limiting recess is provided with a plurality of limiting protrusions. The inverter cover plate is provided with a plurality of limiting holes. The limiting protrusions are correspondingly inserted into the limiting holes.

9. The inverter housing structure for a frequency converter according to claim 8, characterized in that, The limiting protrusion has a heat dissipation hole that connects the inner and outer spaces of the inverter housing.

10. A variable frequency generator inverter housing structure according to claim 1, 2, 3, or 4, characterized in that, It also includes an inverter support frame; the inverter housing includes a front cover and a rear cover, which are detachably connected together to form the inverter housing; the air inlet is connected to an air duct. The inverter support frame is detachably attached to the rear cover of the housing.

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