Photovoltaic dc inductive box

Abstract

The utility model discloses photovoltaic direct current inductance box, including box body, the both sides outer wall of box body are equally distributed with a plurality of fins, and the flange is fixedly connected on the box body, is set with the groove on the flange, and the sealing ring is sleeved in the groove, and the box cover is set up at the top of sealing ring, and the box cover is fixedly connected on the flange, the utility model discloses through adding the groove on the flange to install sealing ring, to improve the sealing between box body and box cover, prevent the dust and water vapor of outside from invading the box body, and the heat dissipation seat subassembly utilizes the reset elastic force of elastic sheet as the stopper and provides reset elastic force, utilizes the stopper and cooperates the limiting slot, realizes the joint type installation of box body, and the box body is supported through the spring again, to reduce the vibration that the box body received, the internal of base guides the airflow generated by fan into the air duct through the deflector, and then discharges from the air outlet, thereby realizes the active heat dissipation of the multiple faces of box body, and therefore compared with the existing inductance box, the utility model has the advantages of good sealing, easy to disassemble, and good heat dissipation effect.

Description

Technical Field

[0001] This utility model relates to the field of inductor box technology, and particularly to photovoltaic DC inductor box. Background Technology

[0002] As a crucial component of photovoltaic (PV) systems, the PV DC inductor box is primarily used to house inductors and assist in inductor heat dissipation through its structure. Its main structure includes the box body, cover, and fins mounted on the box body. During PV system operation, inductors generate heat due to copper and iron losses. The heat dissipation performance of the PV DC inductor box directly affects the inductor's efficiency and lifespan. Simultaneously, its structural stability and sealing are also critical for reliable inductor operation. However, existing PV DC inductor boxes have the following structural design drawbacks: 1. The lack of a sealed design between the box body and cover allows external dust and moisture to easily enter the box, reducing inductor reliability and lifespan; 2. Existing PV DC inductor boxes require mounting on a chassis, but lack corresponding support and shock-absorbing structures. The mounting method often involves directly attaching one side to the chassis, which presents two problems: Firstly, the direct contact between the box body and chassis hinders heat dissipation from that side, significantly reducing the overall heat dissipation effect of the PV DC inductor box and making it difficult to effectively dissipate the heat generated by the inductor; secondly... 1. Vibrations generated by other devices in the chassis during operation will be directly transmitted to the photovoltaic DC inductor box through the mating surface. Long-term vibration transmission can easily lead to a decrease in the reliability of the inductor. 2. In addition to passive heat dissipation using fins, existing photovoltaic DC inductor boxes usually combine with fans for active heat dissipation to improve the heat dissipation effect by accelerating airflow. However, in order to save chassis space, the fans are generally placed relatively close to the photovoltaic DC inductor box. Due to the obstruction of airflow by the structure of the photovoltaic DC inductor box itself, the airflow is difficult to reach the other surfaces of the box smoothly, resulting in the heat dissipation effect of these surfaces not being effectively improved. The advantages of active heat dissipation are not fully utilized, and the overall heat dissipation efficiency is limited. Utility Model Content

[0003] The purpose of this invention is to provide a photovoltaic DC inductor box to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a photovoltaic DC inductor box, including a box body, multiple fins evenly distributed on the two outer walls of the box body, a flange fixedly connected to the box body, a groove opened on the flange, a sealing ring sleeved in the groove, a box cover provided at the top of the sealing ring, and the box cover fixedly connected to the flange.

[0005] Preferably, a heat sink assembly is installed at the bottom of the box body. The heat sink assembly includes a connecting plate, screws, springs, limiting blocks, a base, limiting grooves, a fixing rod, a spring, a mounting cavity, a guide plate, an air duct, an air outlet, an air inlet, a fan, and mounting holes. The connecting plate is located at the bottom of the box body, and a connecting sleeve is fixedly connected to the bottom of the box body. A mounting hole is opened on the connecting plate at the position corresponding to the connecting sleeve, and the connecting sleeve is fitted into the mounting hole. A screw is installed in the mounting hole, and the screw is threaded onto the connecting sleeve. Springs are fixedly connected to both ends of the connecting plate, and limiting blocks are fixedly connected to the springs. A limiting groove is opened on the base, and the limiting block is located in the limiting groove.

[0006] Preferably, a fixing rod is fixedly connected to the bottom end of the connecting plate, and a spring is sleeved on the fixing rod. One end of the spring is set in the limiting groove, and the other end is set on the connecting plate.

[0007] Preferably, the base has an installation cavity, a fan is fixedly connected inside the installation cavity, and the installation cavity is connected to two air ducts, with air outlets opened at the positions corresponding to the fins on the air ducts.

[0008] Preferably, an air inlet is provided on the base at the position corresponding to the fan.

[0009] Preferably, a guide plate is provided on one side of the fan, and the guide plate is fixedly connected to the mounting cavity.

[0010] The advantages of the photovoltaic DC inductor box provided by this utility model are as follows: This utility model improves the sealing performance between the box body and the cover by adding grooves on the flange to install the sealing ring, thereby preventing external dust and moisture from entering the box body. The heat sink assembly uses springs to provide reset elasticity for the limiting block. The limiting block and the limiting groove are used to realize the snap-fit ​​installation of the box body. The box body is also supported by springs to reduce the vibration of the box body. The airflow generated by the fan is guided into the air duct through the guide plate inside the base and then discharged from the air outlet, thereby realizing active heat dissipation on multiple sides of the box body. Therefore, compared with the existing inductor box, this utility model has the advantages of good sealing performance, easy disassembly and assembly, and good heat dissipation effect. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0013] Figure 2This is a schematic diagram of the overall front view sectional structure of this utility model;

[0014] Figure 3 for Figure 2 Enlarged view of the structure of region A in the middle;

[0015] Figure 4 This is a three-dimensional structural diagram of the box body of this utility model;

[0016] Figure 5 This is a three-dimensional structural diagram of the base of this utility model.

[0017] In the diagram: 1. Box body; 11. Fin; 12. Flange; 13. Groove; 14. Sealing ring; 15. Box cover; 16. Connecting sleeve; 2. Heat sink assembly; 21. Connecting plate; 22. Screw; 23. Spring; 24. Limiting block; 25. Base; 26. Limiting groove; 27. Fixing rod; 28. Spring; 29. ​​Mounting cavity; 210. Guide plate; 211. Air duct; 212. Air outlet; 213. Air inlet; 214. Fan; 215. Mounting hole. Detailed Implementation

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

[0019] Please see the appendix Figure 1 -Appendix Figure 5This utility model provides an embodiment of a photovoltaic DC inductor box, including a box body 1. Multiple fins 11 are evenly distributed on the outer walls of both sides of the box body 1. A flange 12 is fixedly connected to the box body 1. A groove 13 is formed on the flange 12, and a sealing ring 14 is fitted inside the groove 13. A box cover 15 is provided at the top of the sealing ring 14 and is fixedly connected to the flange 12. The fins 11 are used for heat dissipation, the flange 12 is used to install the box cover 15, and the groove 13 is used to install the sealing ring 14. The sealing ring 14 is used to improve the sealing performance between the box body 1 and the box cover 15. A heat sink assembly 2 is installed at the bottom of the box body 1. The heat sink assembly 2 includes a connecting plate 21, screws 22, springs 23, and a limiting block 2. 4. The base 25, limiting groove 26, fixing rod 27, spring 28, mounting cavity 29, guide plate 210, air duct 211, air outlet 212, air inlet 213, fan 214, and mounting hole 215 are provided. The connecting plate 21 is set at the bottom of the box 1. The bottom of the box 1 is fixedly connected to the connecting sleeve 16. The connecting plate 21 has a mounting hole 215 at the position corresponding to the connecting sleeve 16. The connecting sleeve 16 is fitted into the mounting hole 215. The mounting hole 22 is installed in the mounting hole 215 and the screw 22 is threaded onto the connecting sleeve 16. Both ends of the connecting plate 21 are fixedly connected to the spring pieces 23. The spring pieces 23 are fixedly connected to the limiting blocks 24. The base 25 has a limiting groove. 26, and the limiting block 24 is set in the limiting groove 26, the mounting hole 215 is used to accommodate the connecting sleeve 16, the screw 22 cooperates with the connecting sleeve 16 to lock the connecting plate 21, the connecting plate 21 is used to install the spring piece 23, the spring piece 23 is used to install the limiting block 24 and provide the limiting block 24 with the reset spring force, the limiting block 24 cooperates with the limiting groove 26 to limit the upward movement of the connecting plate 21; a fixing rod 27 is fixedly connected to the bottom end of the connecting plate 21, a spring 28 is sleeved on the fixing rod 27, one end of the spring 28 is set in the limiting groove 26, and the other end is set on the connecting plate 21, the fixing rod 27 is used to install the spring 28, and the spring 28 is used to dampen the connecting plate 21; base 2 The mounting cavity 29 is provided inside the base 25. A fan 214 is fixedly connected inside the mounting cavity 29. The mounting cavity 29 is connected to two air ducts 211. An air outlet 212 is opened on the air duct 211 at the position corresponding to the fin 11. The mounting cavity 29 is used to install the fan 214. The airflow generated by the fan 214 is guided into the air duct 211 through the guide plate 210 and then discharged through the air outlet 212, thereby accelerating the heat dissipation of the fin 11. An air inlet 213 is opened on the base 25 at the position corresponding to the fan 214. The air inlet 213 is used to introduce airflow. A guide plate 210 is provided on one side of the fan 214 and is fixedly connected inside the mounting cavity 29. The guide plate 210 is used to guide the airflow.

[0020] Working principle: When using this utility model, the connecting plate 21 is installed on the box body 1, so that the connecting sleeve 16 is inserted into the mounting hole 215. The screw 22 is installed in the connecting sleeve 16 to lock the connecting plate 21. The spring 28 is installed on the fixing rod 27. The elastic force of the spring piece 23 can make the limiting block 24 snap into the limiting groove 26, thereby installing the box body 1 on the base 25. The elastic force of the spring 28 can realize the shock absorption of the box body 1. When performing active heat dissipation, the fan 214 can be started. The airflow is guided into the air duct 211 through the guide plate 210 and then discharged through the air outlet 212, thereby accelerating the heat dissipation of the fins 11. Among them, the flange 12 is used to install the box cover 15, the groove 13 is used to install the sealing ring 14, the sealing ring 14 is used to improve the sealing between the box body 1 and the box cover 15, the mounting cavity 29 is used to install the fan 214, and the air inlet 213 is used to introduce airflow.

[0021] 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.

[0022] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model 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. Such 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 this utility model.

Claims

1. A photovoltaic DC inductor box, comprising a box body (1), characterized in that: Multiple fins (11) are evenly distributed on both outer walls of the box body (1). A flange (12) is fixedly connected to the box body (1). A groove (13) is opened on the flange (12). A sealing ring (14) is sleeved in the groove (13). A box cover (15) is provided at the top of the sealing ring (14). The box cover (15) is fixedly connected to the flange (12). A heat sink assembly (2) is installed at the bottom of the box body (1). The heat sink assembly (2) includes a connecting plate (21). Both ends of the connecting plate (21) are fixedly connected to spring pieces (23). A limit block (24) is fixedly connected to the spring piece (23). A limit groove (26) is opened on the base (25). The limit block (24) is set with... Within the limiting groove (26), a fixing rod (27) is fixedly connected to the bottom end of the connecting plate (21). A spring (28) is sleeved on the fixing rod (27), and one end of the spring (28) is located within the limiting groove (26), while the other end is located on the connecting plate (21). An installation cavity (29) is provided within the base (25), and a fan (214) is fixedly connected within the installation cavity (29). The installation cavity (29) is connected to two air ducts (211), and an air outlet (212) is provided on the air duct (211) at the position corresponding to the fin (11). A guide plate (210) is provided on one side of the fan (214), and the guide plate (210) is fixedly connected within the installation cavity (29).

2. The photovoltaic DC inductor box according to claim 1, characterized in that: The connecting plate (21) has an installation hole (215) at the position corresponding to the connecting sleeve (16), and the connecting sleeve (16) is fitted into the installation hole (215). A screw (22) is installed in the installation hole (215), and the screw (22) is threaded onto the connecting sleeve (16).

3. The photovoltaic DC inductor box according to claim 1, characterized in that: An air inlet (213) is provided on the base (25) at the position corresponding to the fan (214).

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