Inductive box and inverter device

Abstract

The embodiment of the application provides an inductance box and an inverter device, and relates to the technical field of inverter equipment. The inductance box comprises a box body, a first isolation piece and a second isolation piece. The box body has a containing cavity. A plurality of first isolation pieces are arranged in the containing cavity and have isolation mounting positions. A plurality of second isolation pieces are arranged in the containing cavity and are mounted on the isolation mounting positions. The second isolation pieces are used for dividing the containing cavity into sub-containing cavities. The inductance box provided by the embodiment of the application separates the internal space of the box body by using the first isolation pieces and the second isolation pieces, improves the versatility of the inductance box for inductances of different sizes, reduces the number of molds, and also reduces the amount of glue pouring, so that material waste is avoided.

Description

Technical Field

[0001] This application relates to the field of inverter equipment technology, and more particularly to an inductor box and an inverter device. Background Technology

[0002] In photovoltaic or energy storage systems, inductors are core components in system units such as inverters or power storage converters (PCS) for functions such as filtering, energy storage, and current regulation. Because inverters / PCS at different power levels have varying requirements for inductor size, capacity, and heat dissipation, inductor boxes need to be compatible with inductors of different specifications.

[0003] In related technologies, an independent inductor design scheme is adopted for the inductor requirements of different power ranges. The internal space of the inductor box is a fixed size and cannot be adjusted; each power range inductor box needs to be molded separately; when a high-power inductor box is used in a low-power device, the unused space needs to be sealed with potting compound.

[0004] However, the aforementioned inductor boxes lack versatility, have a large number of molds, and the unused space can easily lead to material waste. Utility Model Content

[0005] This application provides an inductor box and an inverter device to solve problems such as insufficient versatility of inductor boxes, large number of molds, and material waste caused by unused space.

[0006] On one hand, embodiments of this application provide an inductor box, including: a box body, a first isolator and a second isolator, wherein the box body has a receiving cavity; the first isolator is movably disposed in the receiving cavity and has an isolation mounting position; the second isolator is disposed in the receiving cavity and installed in the isolation mounting position, and the second isolator is used to divide the receiving cavity into sub-receiving cavities.

[0007] In the aforementioned inductor box, the first isolation component includes a first mounting component and a second mounting component. The first mounting component is movably connected to the inner bottom wall of the box, and the second mounting component is connected to the first mounting component. An isolation mounting position is formed on the second mounting component.

[0008] In the aforementioned inductor box, the inner bottom wall of the box body has a mounting groove, and multiple first fastener connection structures are spaced apart along the length of the groove in the mounting groove; the first mounting member is connected to any of the first fastener connection structures through the first fasteners; the first mounting member is provided with a second fastener connection structure, and the second fastener connection structure is used for the second mounting member to connect.

[0009] In the aforementioned inductor box, the second mounting component includes a mounting cylinder and a mounting plate disposed within the mounting cylinder. The mounting plate is connected to the second fastener connection structure via a second fastener. The cylinder wall of the mounting cylinder has mounting notches, which are spaced around the circumference of the mounting cylinder, forming isolated mounting positions.

[0010] In the aforementioned inductor box, it is possible to have a slot at the end of the second isolator, which engages with the mounting notch to install the second isolator in the isolation mounting position; the top wall of the second isolator is lower than or flush with the top wall of the mounting cylinder.

[0011] In the aforementioned inductor box, it is possible to have multiple first isolation members, which are spaced apart in the receiving cavity; and multiple second isolation members, with at least one second isolation member disposed on each first isolation member.

[0012] In the aforementioned inductor box, it is possible to have a thermally conductive filler inside the cavity, the filler being a liquid-solidified component; and the second isolation component having a through channel for the filler to flow through when it is in a liquid state.

[0013] In the aforementioned inductor box, it is possible to have an auxiliary mounting groove provided on the inner side wall of the box, which forms an auxiliary mounting position.

[0014] In the aforementioned inductor box, it is possible to have the box body as a heat-conducting component and the outer wall of the box body equipped with a heat-conducting structure.

[0015] On the other hand, embodiments of this application provide an inverter device, including the aforementioned inductor box.

[0016] The inductor box provided in this application embodiment can divide the accommodating cavity of the box body into multiple sub-accommodating cavities by setting multiple first isolation members and multiple second isolation members. These sub-accommodating cavities can be flexibly adjusted in size to achieve dynamic partitioning of the internal space of the box body. This adapts to the installation requirements of inductors of different specifications, improves the versatility of the inductor box, and reduces the number of molds, thus reducing material waste. By setting adjustable first and second mounting members, the first and second mounting members cooperate to achieve flexible adjustment of the internal space of the inductor box, further enhancing the versatility of the inductor box. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] Figure 1 This is a schematic diagram of the structure of the inductor box provided in an embodiment of this application;

[0019] Figure 2 An exploded view of the inductor box provided in an embodiment of this application;

[0020] Figure 3 A schematic diagram of the structure of an inductor box provided in an embodiment of this application;

[0021] Figure 4 A cross-sectional view of the inductor box provided in an embodiment of this application;

[0022] Figure 5 This is a schematic diagram of the structure of the second mounting component of the inductor box provided in an embodiment of this application;

[0023] Figure 6 A structural schematic diagram of the second mounting component of the inductor box provided in an embodiment of this application, from a first perspective.

[0024] Figure 7 A structural schematic diagram of the second mounting component of the inductor box provided in an embodiment of this application, from a second perspective.

[0025] Figure 8 This is a third view of the structural schematic diagram of the second mounting component of the inductor box provided in the embodiments of this application.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100, Box body; 110, Receiving cavity; 120, Mounting slot; 121, First fastener connection structure; 130, Auxiliary mounting slot; 140, Heat-conducting structure; 200, First isolation component; 210, First mounting component; 211, Second fastener connection structure; 212, First fastener; 220, Second mounting component; 221, Mounting cylinder; 222, Mounting plate; 223, Mounting notch; 224, Second fastener; 300, Second isolation component; 310, Slot.

[0028] The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0029] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0030] In related technologies, a solution of independently designed inductors is adopted for the inductor requirements of different power ranges. The internal dimensions of the inductor box are fixed, and the internal structure cannot be adjusted to adapt to different specifications of inductors, resulting in insufficient versatility of the inductor box; each power range of the inductor box requires a separate mold, which causes the number of molds to increase with the increase of product series; when a high-power inductor box is used in a low-power device, the unused space needs to be sealed with potting compound, resulting in material waste.

[0031] In view of this, embodiments of this application provide an inductor box and an inverter device. The inductor box includes a box body, a first isolation member, and a second isolation member. The box body has a receiving cavity, and the inner bottom wall of the box body has a mounting groove. The first isolation member is disposed within the receiving cavity and includes a first mounting member and a second mounting member. The first mounting member is disposed within the mounting groove, and a second mounting member is mounted on the first mounting member and has an isolation mounting position. The second isolation member is disposed within the receiving cavity and mounted at the isolation mounting position. The second isolation member is used to divide the receiving cavity into sub-receiving cavities. By setting multiple first isolation members and multiple second isolation members, the receiving cavity of the box body can be divided into multiple sub-receiving cavities. The dimensions of the sub-receiving cavities can be flexibly adjusted within the receiving cavity, achieving dynamic partitioning of the internal space of the box body. This adapts to the installation requirements of inductors of different specifications, improves the versatility of the inductor box, and reduces the number of molds, thus reducing material waste. By setting adjustable first and second mounting members, the first and second mounting members cooperate to achieve flexible adjustment of the internal space of the inductor box, further enhancing the versatility of the inductor box.

[0032] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will be described below with reference to the accompanying drawings.

[0033] On the one hand, refer to Figures 1 to 4 As shown, this application embodiment provides an inductor box, including: a box body 100, a first isolator 200 and a second isolator 300, wherein the box body 100 has a receiving cavity 110; the first isolator 200 is movably disposed in the receiving cavity 110 and has an isolation mounting position; the second isolator 300 is disposed in the receiving cavity 110 and installed in the isolation mounting position, and the second isolator 300 is used to divide the receiving cavity 110 into sub-receiving cavities.

[0034] In this embodiment, the receiving cavity 110 formed inside the inductor box body 100 is used to accommodate the inductor, the first isolator 200, and the second isolator 300. The first isolator 200 is spaced apart within the receiving cavity 110, and the second isolator 300 is installed in the isolation mounting position formed by the first isolator 200. Exemplarily, the second isolator 300 is an adjustable or detachable plate-like structure, which can be understood as a partition. The first isolator 200 and the second isolator 300 cooperate to divide the receiving cavity 110 inside the box body 100 into multiple sub-receiving cavities. The size of the multiple sub-receiving cavities can be adjusted to accommodate inductors of different power ranges, improving the versatility of the inductor box and enabling a single inductor box to adapt to inductors of multiple power ranges, thereby reducing the number of molds and optimizing production efficiency. Furthermore, the second isolator 300 is detachable, simplifying the installation and maintenance process.

[0035] As one feasible implementation method, refer to Figure 1 and Figure 2 As shown, the first isolation member 200 includes a first mounting member 210 and a second mounting member 220. The first mounting member 210 is movably connected to the inner bottom wall of the housing 100, and the second mounting member 220 is connected to the first mounting member 210. An isolation mounting position is formed on the second mounting member 220.

[0036] As one feasible implementation, the inner bottom wall of the housing 100 has a mounting groove 120, and a plurality of first fastener connection structures 121 are spaced apart along the length of the groove in the mounting groove 120; the first mounting member 210 is connected to any of the first fastener connection structures 121 by a first fastener 212; the first mounting member 210 is provided with a second fastener connection structure 211, and the second fastener connection structure 211 is connected to the second mounting member 220.

[0037] In this embodiment, the bottom of the mounting slot 120 is provided with a plurality of first fastener connection structures 121. One end of the first mounting member 210 is provided with a first fastener connection hole, and the first fastener 212 passes through the first fastener connection hole to install the first mounting member 210 onto any of the first fastener connection structures 121. The other end of the first mounting member 210 is provided with a second fastener connection structure 211, and the second fastener 224 passes through the second fastener connection hole of the second mounting member 220 to fix the second mounting member 220 onto the first mounting member 210. This achieves the cooperation and fixation between the first isolator 200 and the box 100.

[0038] In this embodiment, multiple first fastener connection structures 121 are provided. The number of first isolators 200 can be flexibly adjusted according to the number of inductors, and the installation position of the first mounting member 210 can be flexibly adjusted according to the size of the inductors. Furthermore, by adjusting the length of the first mounting member 210, the second mounting member 220 can be flexibly moved along its length, thereby flexibly adjusting the internal space of the housing 100 according to the installation requirements of the inductors. By adjusting the installation position and length of the first mounting member 210, a single inductor housing can accommodate inductors of various power ranges, reducing the number of molds required.

[0039] For example, the first fastener 212 and the second fastener 224 are screws. Using screws facilitates disassembly when adjusting the positions of the first mounting member 210 and the second mounting member 220, simplifying the operation process. In other embodiments, the first fastener 212 and the second fastener 224 may also be rivets or fixing plates.

[0040] For example, the mounting slot 120 extends along a first direction for mounting the first mounting member 210. In other embodiments, the mounting slot may also extend along a second direction, and multiple mounting slots may be provided, some extending along the first direction and others along the second direction. This allows for flexible adjustment of the size of the sub-receiving cavity in both the first and second directions, further improving the versatility of the inductor box. It should be noted that the first direction here is the x-axis direction in the figure, and the second direction is the y-axis direction.

[0041] In another embodiment, the first mounting member 210 can be a slider, the mounting slot can be a slide rail, and the second mounting member 220 is mounted on the slider. According to the installation requirements of the inductor, the slider slides within the slide rail to adjust the position of the second mounting member 220, thereby flexibly adjusting the size of the sub-accommodating cavity. Furthermore, a locking structure can be provided on the slider. When the slider slides to a preset position, the locking structure locks the slider, fixing it in that position and improving structural stability.

[0042] In another embodiment, a magnetic structure is integrated inside the housing 100. The second mounting component 220 can be attracted to the bottom wall of the housing 100 by magnetic force. The magnetic structure does not require screws or rivets, which can improve the ease of installation and also allows for quick disassembly for the replacement and maintenance of the inductor.

[0043] As one feasible implementation method, refer to Figures 5 to 8 As shown, the second mounting component 220 includes a mounting cylinder 221 and a mounting plate 222 disposed inside the mounting cylinder 221. The mounting plate 222 is connected to the second fastener connection structure 211 via a second fastener 224. The cylinder wall of the mounting cylinder 221 is provided with a mounting notch 223, which is spaced around the circumference of the mounting cylinder 221, forming an isolated mounting position.

[0044] For example, the mounting cylinder 221 has a mounting notch 223 for fixing the second spacer 300, so that the second spacer 300 divides the receiving cavity 110 into multiple sub-receiving cavities. The mounting plate 222 is disposed on the side of the mounting cylinder 221 near the first mounting member 210, and is connected to the second fastener connection structure 211 by the second fastener 224, so that the second mounting member 220 is mounted on the first mounting member 210, and the size of the partition area can be flexibly adjusted as the size of the first mounting member 210 changes.

[0045] For example, the mounting cylinder 221 is provided with a plurality of mounting notches 223 spaced apart in the circumferential direction, specifically two, three, or even more. In this embodiment of the application, there are four mounting notches 223, which are respectively opened on opposite sides of the mounting cylinder 221 along the first direction and on opposite sides along the second direction, so that the second spacers 300 are arranged at intervals along the first direction or the second direction.

[0046] In other embodiments, the second mounting member 220 can be made of an elastic material, and the space can be divided by pressure adjustment. This eliminates the need for the first isolator 200 to achieve space adjustment, simplifies the structure of the first isolator 200, and reduces assembly complexity.

[0047] As one feasible implementation method, refer to Figure 2 As shown, the end of the second isolation member 300 is provided with a slot 310, which is engaged with the mounting notch 223 to install the second isolation member 300 in the isolation mounting position; the top wall of the second isolation member 300 is lower than or flush with the top wall of the mounting cylinder 221.

[0048] For example, a slot 310 is provided at the end of the second isolation member 300 near the first isolation member 200. The slot 310 of the second isolation member 300 is engaged with the installation notch 223 opened on the installation cylinder 221 of the second mounting member 220, and cooperates with the installation notch 223 to form a locking structure. This can simplify the installation process of the second isolation member 300, reduce the assembly time, and enable rapid installation.

[0049] In this embodiment, a sealing element is also provided between the second isolation member 300 and the second mounting member 220 for sealing and fixing. For example, the sealing element can be a rubber pad or sealing strip, etc., which works in conjunction with the locking structure to improve the sealing performance of the potting adhesive and prevent the thermally conductive adhesive from leaking into the mounting cylinder 221.

[0050] In this embodiment, making the top wall of the second spacer 300 lower than or flush with the top wall of the mounting cylinder 221 can further prevent thermally conductive adhesive from leaking into the mounting cylinder 221, thereby avoiding sealing of the first mounting member 210 and the second mounting member 220. When there is a sub-receiving cavity where no inductor is installed, the top wall of the second spacer 300 around this sub-receiving cavity can also be made slightly higher than the top walls of other second spacers 300 to prevent filler from flowing into the sub-receiving cavity where no inductor is installed. This can reduce the amount of adhesive used and avoid waste of filler material.

[0051] In other embodiments, the second isolator 300 may also adopt a sliding structure. Specifically, the partition slides inside the inductor box via a guide rail to adjust the space. This allows for manual adjustment without tools, simplifying the operation. The guide rail structure also improves the stability of the partition movement and reduces sealing failure caused by misalignment.

[0052] As one feasible implementation method, refer to Figure 1 and Figure 2 As shown, there are multiple first isolation members 200, which are spaced apart in the receiving cavity 110; there are multiple second isolation members 300, with at least one second isolation member 300 on each first isolation member 200, so that the receiving cavity 110 can be divided into multiple sub-receiving cavities, thereby accommodating more inductors of different sizes.

[0053] In other embodiments, the housing 100 may also integrate a multi-layer structure, which is independently divided into a three-dimensional spatial layout by multiple first isolation members 200 and multiple second isolation members 300, forming more sub-cavities, improving space utilization, and also supporting inductor layered heat dissipation to reduce local overheating.

[0054] As one feasible implementation, a thermally conductive filler is provided in the cavity 110, and the filler is a liquid solidified component; the second isolation component 300 is provided with a through channel for the filler to flow through when it is in a liquid state, which is not shown in the figure.

[0055] For example, the filler is a liquid encapsulating adhesive, specifically a thermally conductive adhesive such as epoxy resin, silicone, or polyurethane adhesive. Under vacuum or normal pressure, it is injected into the cavity of the inductor box that already contains the inductor, so that it is completely immersed and fills the gaps. Finally, it is cured by heating or standing at room temperature.

[0056] In this embodiment, the cured filler can efficiently conduct the heat generated inside the inductor to the housing 100. The sealed filler also prevents moisture and liquid from entering the inductor housing, causing the coil to become damp, short-circuit, or oxidize, thereby protecting the coil and magnetic core from corrosion. The filler can also bond loose coils and magnetic cores into a whole, preventing relative displacement or wear under high-frequency vibration and avoiding coil breakage. In addition, the filler has insulating properties, forming a uniformly distributed, high-dielectric-strength, and stable insulator throughout the inductor after curing, improving electrical reliability.

[0057] For example, the through channel provided on the second isolator 300 can be understood as an adjustable partition notch, allowing the liquid filler to flow freely and cover the inductor surface to improve heat dissipation efficiency. The adjustable notch allows thermally conductive adhesive to flow freely to the sub-receiving cavity where the inductor is installed, sealing the inductor. Sub-receiving cavities where no inductor is installed do not need to be filled with thermally conductive adhesive, thus ensuring that unused extra space is not sealed with adhesive, thereby reducing the waste of potting material.

[0058] As one feasible implementation method, refer to Figure 1 and Figure 2 As shown, the inner sidewall of the box 100 is also provided with an auxiliary mounting groove 130, which forms an auxiliary mounting position.

[0059] For example, the auxiliary mounting groove 130 extends along a third direction, which is the z-axis direction in the figure. It can be understood as extending along the height direction of the box 100. It can be a groove or a slot 310 to form an auxiliary mounting position for fixing the second isolation member 300. The auxiliary mounting position formed corresponds to part of the isolation mounting position and can play a double limiting role, improving the stability of the installation position of the second isolation member 300 and reducing the offset.

[0060] As one feasible implementation, the housing 100 is a heat-conducting component; refer to Figures 1 to 3 As shown, a heat-conducting structure 140 is provided on the outer wall of the box 100.

[0061] For example, the housing 100 can be made of a high thermal conductivity non-insulating material such as aluminum alloy, and its surface needs to be anodized. It may also use insulating and thermally conductive materials such as mica sheets or thermally conductive insulating pads inside the inductor housing 100. Separating the inductor housing 100 from the inductor housing can reduce the thermal resistance between the inductor and the housing, and enhance heat conduction efficiency. When the inductor is working, the current flowing through the coil generates heat, which is conducted to the housing 100. Therefore, the housing 100 needs to use a thermally conductive material to quickly conduct the heat generated by the inductor to the entire surface of the housing 100, thereby improving the long-term reliability of the inductor and extending its service life.

[0062] In this embodiment, the outer wall of the housing 100 is provided with a heat-conducting structure 140. For example, the heat-conducting structure 140 can be heat dissipation fins, with multiple fins spaced apart to increase the heat dissipation area and thus effectively improve heat dissipation efficiency. Specifically, when heat is conducted to various parts of the heat dissipation fins, the air in contact with the fin surface is heated. The heated air becomes less dense and rises, carrying away the heat. In other embodiments, a fan or blower can also be provided on the side or bottom of the housing 100 to actively provide airflow, and the extension direction of the fins is parallel to the direction of the airflow to reduce wind resistance and further improve heat dissipation efficiency.

[0063] On the other hand, embodiments of this application provide an inverter device, including the aforementioned inductor box.

[0064] It is understood that since the inverter device of this application adopts the technical solution of the inductor box embodiment described above, it has at least the beneficial effects brought about by the technical solution of the inductor box embodiment, which will not be elaborated here.

[0065] It should be noted that relational terms such as "first" and "second" are used only 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, such that an article or apparatus that comprises 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.

[0066] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0067] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. An inductor box, characterized in that, include: The box body (100) has a receiving cavity (110). A first isolation element (200) is movably disposed within the receiving cavity (110) and has an isolation mounting position; The second isolation member (300) is disposed in the receiving cavity (110) and installed in the isolation mounting position. The second isolation member (300) is used to divide the receiving cavity (110) into sub-receiving cavities.

2. The inductor box according to claim 1, characterized in that, The first isolation member (200) includes a first mounting member (210) and a second mounting member (220), the first mounting member (210) being movably connected to the inner bottom wall of the housing (100), and the second mounting member (220) being connected to the first mounting member (210). The isolation mounting position is formed on the second mounting component (220).

3. The inductor box according to claim 2, characterized in that, The inner bottom wall of the box (100) has a mounting groove (120), and a plurality of first fastener connection structures (121) are provided at intervals along the length of the groove in the mounting groove (120); the first mounting member (210) is connected to any of the first fastener connection structures (121) by a first fastener (212). The first mounting component (210) is provided with a second fastener connection structure (211), which is used for the second mounting component (220) to connect.

4. The inductor box according to claim 3, characterized in that, The second mounting component (220) includes a mounting cylinder (221) and a mounting plate (222) disposed within the mounting cylinder (221). The mounting plate (222) is connected to the second fastener connection structure (211) via the second fastener (224). The mounting cylinder (221) has mounting notches (223) on its wall. The mounting notches (223) are spaced around the circumference of the mounting cylinder (221) and form the isolation mounting position.

5. The inductor box according to claim 4, characterized in that, The end of the second isolator (300) is provided with a slot (310), which is engaged with the mounting notch (223) to install the second isolator (300) in the isolation mounting position; The top wall of the second isolation member (300) is lower than or flush with the top wall of the mounting cylinder (221).

6. The inductor box according to any one of claims 1-5, characterized in that, There are multiple first isolation members (200), and the multiple first isolation members (200) are spaced apart in the receiving cavity (110). There are multiple second isolation members (300), and at least one second isolation member (300) is provided on one of the first isolation members (200).

7. The inductor box according to any one of claims 1-5, characterized in that, The cavity (110) is provided with a thermally conductive filler, which is a liquid-solidified component; The second isolation element (300) is provided with a through channel for the filler to flow through when it is in a liquid state.

8. The inductor box according to any one of claims 1-5, characterized in that, The inner sidewall of the box (100) is also provided with an auxiliary mounting groove (130), which forms an auxiliary mounting position.

9. The inductor box according to claim 8, characterized in that, The housing (100) is a heat-conducting component; And / or, the outer wall of the housing (100) is provided with a heat-conducting structure (140).

10. An inverter device, characterized in that, The inductor box includes any one of claims 1-9.

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