Integrated frequency converter

Abstract

The utility model relates to an integrated frequency converter, which comprises a case, an integrated box, a cover plate, a first fixing plate and a fan, the integrated box is arranged in the case, the first fixing plate is fixedly arranged in the integrated box, the first fixing plate is provided with a frequency converter element in an integrated manner, the fan is arranged at the top of the case, and the cover plate is arranged on the top of the case. The bottom and the top of the integrated box and the bottom of the machine box are each provided with a hollowed-out part, the hollowed-out parts face the draught fan, positioning columns are fixedly arranged at the four corners of the integrated box respectively, the four corners of the cover plate are fixedly arranged on the positioning columns respectively, and a gap is formed between the cover plate and the integrated box. The frequency converter device is integrated in the integrated box, and the fan directly faces the integrated box, so that the wind power is more concentrated, and the dustproof and heat dissipation functions are more effectively achieved.

Description

Technical Field

[0001] This utility model relates to the field of frequency converter equipment, and in particular to an integrated frequency converter. Background Technology

[0002] In existing inverter designs, inverter components are typically distributed and installed in different locations within the chassis. This distributed installation method makes heat dissipation and dust prevention a major challenge. Since inverters generate a significant amount of heat during operation, if this heat cannot be dissipated effectively and promptly, it will not only affect the inverter's performance and stability but may also pose safety hazards. Furthermore, the operating environment of inverters is often complex and variable, allowing dust and other impurities to easily enter the chassis, adhere to the inverter components, further impairing heat dissipation and potentially causing short circuits or damage to components.

[0003] Traditional heat dissipation methods, such as natural cooling or simple fan cooling, often fail to achieve ideal heat dissipation results. Natural cooling relies on the temperature difference between the inside and outside of the chassis for heat exchange, resulting in low heat dissipation efficiency; while simple fan cooling can improve heat dissipation efficiency to some extent, its airflow is dispersed, making it difficult to directly and efficiently dissipate heat from the inverter components, and its dust prevention effect is limited. Utility Model Content

[0004] In view of the above situation, it is necessary to provide an integrated frequency converter that solves at least one of the above problems, including a chassis, an integrated box, a cover plate, a first fixing plate, and a fan. The integrated box is disposed inside the chassis, the first fixing plate is fixed inside the integrated box, and the frequency converter components are integrated on the first fixing plate. The fan is disposed on the top of the chassis. The bottom, top, and bottom of the integrated box and the chassis are all provided with hollowed-out portions, which face the fan. Positioning posts are fixed at the four corners of the integrated box, and the four corners of the cover plate are fixed to the positioning posts. There is a gap between the cover plate and the integrated box.

[0005] Preferably, a second fixing plate is provided on the extended bottom edge of the integrated box, and a capacitor is provided on the surface of the second fixing plate facing the hollowed-out portion.

[0006] Preferably, the other bottom edge of the integrated box is provided with an inclined edge, the inclination direction being inclined relative to the outside of the integrated box.

[0007] Preferably, the integrated box is further provided with limiting edges on both sides.

[0008] Preferably, the interior of the integrated box is further provided with multiple air guide plates, which are regularly arranged in the integrated box.

[0009] Preferably, the cover plate is provided with a plurality of wiring terminals, each of which is divided by a dividing plate.

[0010] Preferably, the number of fans is at least two, and they are arranged horizontally to cover the top of the chassis. Attached Figure Description

[0011] 1. Chassis; 2. Integrated box; 21. Inclined edge; 22. Limiting edge; 23. Air guide plate; 3. Cover plate; 31. Wiring terminal; 4. First fixing plate; 5. Fan; 6. Hollowed-out part; 7. Positioning post; 8. Second fixing plate.

[0012] Figure 1 This is a schematic diagram of the structure of the integrated frequency converter according to an embodiment of the present invention.

[0013] Figure 2 This is a schematic diagram of the internal structure of the integrated frequency converter according to an embodiment of the present invention.

[0014] Figure 3 This is a schematic diagram of the internal structure of the integrated frequency converter according to an embodiment of the present invention.

[0015] Figure 4 This is a schematic diagram of the structure of the integrated box according to an embodiment of the present utility model. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the integrated frequency converter of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0017] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "center," "longitudinal," "lateral," "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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 of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Please see Figures 1 to 4 The integrated frequency converter of this utility model embodiment includes a chassis 1, an integrated box 2, a cover plate 3, a first fixing plate 4, and a fan 5. The integrated box 2 is disposed inside the chassis 1, and the first fixing plate 4 is fixed inside the integrated box 2. The first fixing plate 4 integrates frequency converter components. The fan 5 is disposed on the top of the chassis 1. The bottom, top, and bottom of the integrated box 2 and the chassis 1 are all provided with hollow parts 6, which face the fan 5. The four corners of the integrated box 2 are respectively fixed with positioning posts 7, and the four corners of the cover plate 3 are respectively fixed with the positioning posts 7. There is a gap between the cover plate 3 and the integrated box 2.

[0020] In the above embodiment, the integrated box 2 is disposed inside the chassis 1. Inside the integrated box 2, the first fixing plate 4 is securely fixed by means of threaded connection. This fixing method ensures the stability and reliability of the first fixing plate 4 and the frequency converter components integrated on it.

[0021] The main components of the frequency converter are integrated on the first fixed plate 4, which generate heat during operation. To effectively dissipate this heat, the top and bottom sides of the integrated housing 2 have perforations 6, providing channels for heat dissipation. Simultaneously, a fan 5 is located at the top of the housing 1. When the fan 5 operates, airflow enters from the top of the housing 1 and first acts on the perforations 6 at the top of the integrated housing 2. Due to the concentrated airflow from the fan 5, the heat at the top of the integrated housing 2 can be quickly carried away, achieving excellent heat dissipation.

[0022] After passing through the perforated section 6 at the top of the integrated housing 2, the airflow continues downward, passing through the inverter components inside the integrated housing 2, further carrying away heat. Subsequently, the airflow exits from the perforated section 6 at the bottom of the integrated housing 2, completing the entire heat dissipation cycle.

[0023] To prevent dust from entering from the front of the integrated housing 2, the cover plate 3 is designed and fixed at the four corners of the integrated housing 2. Positioning posts 7 are fixed at these corners, and the cover plate 3 is fixed to the positioning posts 7 using appropriate connection methods. A certain gap is maintained between the cover plate 3 and the integrated housing 2. This design allows air to flow out from the bottom of the integrated housing 2 and the gap between the integrated housing 2 and the cover plate 3 when the fan 5 is running, thereby increasing airflow efficiency. Simultaneously, this design also forms an air barrier in front of the integrated housing 2, effectively preventing dust from entering.

[0024] In summary, integrating the frequency converter components into the integrated box 2 more effectively achieves the functions of dust prevention and heat dissipation.

[0025] Please see Figures 1 to 4 In another embodiment, a second fixing plate is provided on the extended bottom edge of the integrated box 2, and a capacitor is provided on the surface of the second fixing plate facing the hollowed-out portion 6.

[0026] In the above embodiment, a capacitor is provided on the surface between the second fixing plate and the internal hollow portion 6 of the integrated box 2. This arrangement allows the capacitor to fully utilize the air duct inside the integrated box 2 for heat dissipation. When the fan 5 is running, air enters from the top of the integrated box 2, passes through the internal inverter components, and continues to blow downwards, passing through the capacitor on the second fixing plate, thereby achieving wind-driven heat dissipation of the capacitor and improving the overall heat dissipation efficiency of the inverter.

[0027] Please see Figures 1 to 4 In another embodiment, the other bottom edge of the integrated box 2 is provided with an inclined edge 2121, which is inclined in the direction of the inclined edge relative to the outside of the integrated box 2.

[0028] In the above embodiment, the inclined edge 2121 is inclined relative to the outer side of the integrated box 2. When the fan 5 operates, the wind force carries dust from the top of the integrated box 2, and the dust will first come into contact with the inclined edge 2121. Since the inclined edge 2121 has a certain inclination angle, the dust will be guided by the inclined edge 2121 after contacting it, sliding away along the inclined surface in a direction farther from the capacitor. This design effectively prevents dust from approaching or even adhering to the capacitor during the falling process, thereby ensuring the cleanliness and heat dissipation of the capacitor, and improving the operating stability and reliability of the frequency converter.

[0029] Please see Figures 1 to 4 In another embodiment, the integrated box 2 is further provided with limiting edges 22 on both sides.

[0030] In the above embodiment, it is used to guide dust to slide down the inclined edge 21.

[0031] Please see Figures 1 to 4In another embodiment, the integrated box 2 is further provided with a plurality of air guide plates 23, which are regularly arranged in the integrated box 2.

[0032] In the above embodiment, these air guide plates 23 are regularly arranged and distributed inside the integrated housing 2, forming an orderly air duct structure. When the fan 5 operates, the generated airflow flows along the path guided by the air guide plates 23, ensuring that the air can pass evenly through all areas inside the integrated housing 2. This design not only improves heat dissipation efficiency but also ensures that all components inside the integrated housing 2 are adequately cooled, thereby guaranteeing the stable operation of the frequency converter.

[0033] Please see Figures 1 to 4 In another embodiment, the cover plate 3 is provided with a plurality of wiring terminals 31, each of the wiring terminals 31 being divided by a dividing plate.

[0034] In the above embodiments, each terminal 31 has its own independent space, which avoids mutual interference during wiring, improves the accuracy and safety of wiring, and also facilitates later maintenance and repair.

[0035] Please see Figures 1 to 4 In another embodiment, the number of fans 5 is at least two, and they are arranged horizontally to cover the top of the chassis.

[0036] In the above embodiment, at least two fans 5 are arranged horizontally at the top of the housing, and these fans 5 fill the top space of the housing. This layout allows the airflow generated by the fans 5 to more evenly cover the electrical components on the fixed plate, improving heat dissipation efficiency and ensuring the stability and reliability of the frequency converter under high load operation.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An integrated frequency converter, characterized in that, The device includes a chassis, an integrated box, a cover plate, a first fixing plate, and a fan. The integrated box is disposed inside the chassis, and the first fixing plate is fixed inside the integrated box. The first fixing plate integrates frequency converter components. The fan is disposed on the top of the chassis. The bottom, top, and bottom of the integrated box and the chassis are all provided with hollowed-out portions facing the fan. Positioning posts are fixed at the four corners of the integrated box, and the four corners of the cover plate are fixed to the positioning posts. There is a gap between the cover plate and the integrated box.

2. The integrated frequency converter as described in claim 1, characterized in that: A second fixing plate is provided on the extended bottom edge of the integrated box, and a capacitor is provided on the surface of the second fixing plate facing the hollow part.

3. The integrated frequency converter as described in claim 2, characterized in that: The other bottom edge of the integrated box is provided with an inclined edge, which is inclined in the direction of the outside relative to the integrated box.

4. The integrated frequency converter as described in claim 3, characterized in that: Limiting edges are also provided on both sides of the integrated box.

5. The integrated frequency converter as described in claim 4, characterized in that: The integrated box is also equipped with multiple air guide plates, which are regularly arranged in the integrated box.

6. The integrated frequency converter as described in claim 1, characterized in that: The cover plate is provided with multiple wiring terminals, each of which is divided by a dividing plate.

7. The integrated frequency converter as described in claim 1, characterized in that: The number of fans is at least two, and they are arranged horizontally to cover the top of the chassis.

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