Inductor box
By designing an inductor box with step-type mounting holes and a selectively closed second hole, the problem of inverter chassis in the prior art that cannot be applied to different power density requirements is solved, and the adaptation and waterproof and heat dissipation effects of different types of chassis are achieved.
Patent Information
- Application Number
- CN202421800569.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-29
AI Technical Summary
The existing inductor boxes cannot be used in inverter chassis with different power density requirements and structures, resulting in reduced power density of equipment under space constraints and lack of a general installation solution.
An inductor box is designed that includes a stepped mounting hole and a selectively closed second hole, through which these characteristics enable adaptation of the inverter chassis for different power density requirements. The fixing member can be fixed in the first or second hole and ensures water resistance by selective arrangement of the sealing cover and bottom wall.
This inductor box can be selectively processed according to the different power density requirements and structure of the inverter chassis, and is suitable for different types of inverter chassis, while ensuring waterproofness and heat dissipation effect.
Smart Images
Figure CN222995185U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of inductance devices, and particularly relates to an inductance box. Background Art
[0002] Photovoltaic power generation needs to store the obtained electric energy in time after power generation due to its intermittent and discontinuous characteristics. The boost and inversion of electric energy during the storage process involve the use of external inductors. The inductance box is mainly used to place the inductor and help the inductor dissipate heat to ensure the normal operation of the inductor.
[0003] In the prior art, since the photovoltaic system needs to meet the IP66 protection level standard, the inverter in the photovoltaic system is usually provided with a waterproof edge. When the general inductance box is externally installed, the internal fixing method is usually adopted, that is, the screw extending from the inside of the chassis is fixed at the boundary outside the chassis. Therefore, the waterproof edge needs to be turned outwards to avoid the screw at the boundary, so that the screw is connected and fixed with the inductance box. Since the photovoltaic power generation system is often restricted by the site space and has a high requirement for the power density that the equipment can reach. The outward turning of the waterproof edge results in an additional volume occupied outside the inverter chassis, reducing the maximum power density that the equipment can reach. In addition, there is another inductance box in the prior art, which uses the external fixing method for fixing, and the waterproof edge does not need to be turned outwards. However, since the inverter with low power demand does not have an external fixing component, it is no longer applicable to the inverter with low power demand. That is, inverters with different power density requirements have different structures and installation schemes. Therefore, the inductance box in the prior art lacks a general option applicable to the inverter chassis with different power density requirements. Summary of the Utility Model
[0004] The purpose of the utility model is to provide an inductance box so that the inductance box can be applied to the inverter chassis with different power density requirements and structures.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme:
[0006] An inductance box is cooperatively connected with an inverter chassis, and includes:
[0007] A box body, the box body includes a receiving groove and an installation part arranged on the circumference of the receiving groove. The installation part includes an installation surface and at least two installation holes, and the installation holes are arranged on the installation surface; the installation holes are stepped holes, the stepped holes include a first hole and a second hole, the aperture of the first hole is larger than that of the second hole, the first hole is communicated with the installation surface, the second hole is arranged at one end of the first hole far away from the installation surface, and one end of the second hole far away from the first hole can be selectively closed; a connection structure can be selectively arranged in the second hole;
[0008] The mounting hole is connected to the inverter chassis through a fixing member, and the fixing member can be alternatively fixed within the first hole or the second hole.
[0009] Preferably, the second hole is provided with a sealing cover that can be selectively connected to the end of the second hole away from the first hole. The sealing cover is connected to the end of the second hole away from the first hole and can close the end of the second hole away from the first hole.
[0010] Preferably, the second hole is provided with a bottom wall that can be selectively penetrated.
[0011] Preferably, the connecting structure includes an internal threaded sleeve, and the internal threaded sleeve can be selectively disposed within the second hole.
[0012] Preferably, the inner wall of the second hole can be selectively provided with threads.
[0013] Preferably, a guiding surface is provided at the connecting portion between the first hole and the second hole. The guiding surface extends obliquely from the side wall of the first hole towards the second hole to the opening of the second hole.
[0014] Preferably, the mounting portion is a rectangular brim-shaped mounting plate extending outward from the outer edge of the notch of the accommodating groove.
[0015] Preferably, the mounting plate is provided with a protruding portion protruding in a direction away from the mounting surface, and the mounting hole is provided in the protruding portion.
[0016] Preferably, the mounting surface is provided with a mounting groove for mounting a sealing gasket, and the notch of the accommodating groove and the opening of the mounting hole are both located within the enclosed area of the mounting groove.
[0017] Preferably, heat dissipation fins are provided at one end of the box body away from the mounting surface.
[0018] Advantages of the present utility model:
[0019] The inductor box provided by the present utility model, when applied to an inverter with low power requirements and an outwardly turned waterproof edge, can set a connection structure at the second hole. The fixing member passes through the inside of the chassis and is screwed to the second hole to fix the inductor box. At the same time, the second hole is closed. After the installation part of the inductor box is installed on the chassis, the closed second hole can ensure that the liquid in the outside world will not flow into the chassis through the installation hole. When the inductor box is applied to an inverter with high power requirements and a non-outwardly turned waterproof edge, the second hole is not provided with a connection structure and is not closed, making the installation hole a through hole. At this time, the aperture of the first hole is larger and can accommodate the fixing fittings outside the inverter chassis. The fixing member passes through the second hole and is fixed to the fixing fittings to fix the inductor box. At this time, the fixing fittings are not communicated with the inside of the chassis, and it also avoids the liquid in the outside world from flowing into the chassis. Therefore, the inductor box can be selectively processed according to the usage requirements, and thus is applicable to inverter chassis with different power density requirements and structures. Description of the Drawings
[0020] Figure 1 is a front schematic view of the inductor box provided by an embodiment of the present application;
[0021] Figure 2 is a schematic cross-sectional view taken along the A-A side of the inductor box provided by an embodiment of the present application;
[0022] Figure 3 is a side schematic view of the inductor box provided by an embodiment of the present application;
[0023] Figure 4 is a rear schematic view of the inductor box provided by an embodiment of the present application;
[0024] Figure 5 is a schematic view of the inductor box when it is fixedly connected to the chassis from the inside;
[0025] Figure 6 is a schematic view of the inductor box when it is fixedly connected to the chassis from the outside;
[0026] Figure 7 is a side schematic view of the inductor box when it is fixedly connected to the chassis from the outside.
[0027] Description of the Reference Numerals:
[0028] 1 - box body; 11 - accommodating groove; 12 - installation part; 1211 - first hole; 1212 - second hole; 122 - installation groove; 13 - heat dissipation fins; 2 - stud; 3 - waterproof edge. Detailed Embodiments
[0029] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only for explaining the present utility model and not for limiting the present utility model. In addition, it should be noted that for the convenience of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.
[0030] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0031] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above the top of", and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below the bottom of", and "under the bottom of" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.
[0032] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.
[0033] As Figures 1-7 shown, this embodiment provides an inductor box which can be cooperatively connected with an inverter chassis. Specifically, the inductor box is installed outside the inverter chassis and can be used to fix the inductor assembly and help the inductor assembly dissipate heat.
[0034] Specifically, the inductor box includes a box body 1. The box body 1 includes a receiving groove 11 and a mounting portion arranged circumferentially around the receiving groove 11. The mounting portion includes a mounting surface and at least two mounting holes, and the mounting holes are arranged on the mounting surface. The cross-sectional area of the receiving groove 11 gradually increases from the groove bottom to the groove opening. The receiving groove 11 can be used to accommodate the inductor assembly, and the number of the receiving grooves 11 is one or more. The mounting portion is used to mount the box body 1 of the inductor box outside the inverter chassis. The mounting surface is the contact surface of the inductor box with the inverter chassis during installation. The mounting holes arranged on the mounting surface are used to avoid the fixing parts and cooperate with the fixing parts to fix the inductor.
[0035] Specifically, the mounting hole is a stepped hole, which includes a first hole 1211 and a second hole 1212. The aperture of the first hole 1211 is larger than that of the second hole 1212, and the first hole 1211 communicates with the mounting surface. The second hole 1212 is arranged at one end of the first hole 1211 away from the mounting surface, and one end of the second hole 1212 away from the first hole 1211 can be selectively closed. A connecting structure can be selectively arranged in the second hole 1212. The mounting hole is connected to the inverter chassis through a fixing part, and the fixing part can alternatively be fixed in the first hole 1211 or the second hole 1212.
[0036] Further, when the waterproof edge 3 of the inverter chassis does not turn outwards, the waterproof edge 3 is likely to block the mounting hole position of the inductor box. At this time, the inductor box should be fixed from the outside, and accessories for assisting in fixing should be provided outside the chassis. At this time, the fixing part is fixed in the first hole 1211. The first hole 1211 can be used to accommodate a stud 2 with internal threads arranged outside the chassis. The stud 2 does not communicate with the inside of the chassis. At this time, the second hole 1212 is not closed and no connecting structure is arranged. Using a screw as the fixing part, the screw can pass through the second hole 1212 and extend into the first hole 1211 and be screwed with the stud 2 in the first hole 1211. At the same time, the end of the screw can abut against the box body 1 of the inductor box to fix the box body 1. At the same time, since the stud 2 does not communicate with the inside of the chassis, external liquid will not enter the inverter chassis through the mounting hole, ensuring the waterproofness of the inverter chassis.
[0037] Further, when the waterproof edge 3 of the inverter chassis turns outwards, the waterproof edge 3 will not cause blockage. At this time, the inductor box can be fixed from the inside, and through holes for avoiding the fixing parts are arranged on the chassis. At this time, the fixing part can be fixed in the second hole 1212. At this time, the second hole 1212 is closed and a connecting structure is arranged in the second hole 1212. The connecting structure in the second hole 1212 can be a thread. At this time, using a screw as the fixing part, the screw can pass through the first hole 1211 and extend into the second hole 1212 and be screwed with the thread in the second hole 1212.
[0038] Specifically, the second hole 1212 is provided with a sealing cover that can be selectively connected to one end of the second hole 1212 away from the first hole 1211. The sealing cover is connected to one end of the second hole 1212 away from the first hole 1211 and can seal one end of the second hole 1212 away from the first hole 1211. When fixing the inductor box from the inside, the sealing cover is opened, and the screw can pass through the second hole 1212 and extend into the first hole 1211. When fixing the inductor box from the outside, the sealing cover is closed, and the screw extends from the first hole 1211 into the second hole 1212. At this time, the sealing cover can prevent liquid from flowing into the inverter chassis from the outside through the mounting hole.
[0039] Specifically, the second hole 1212 is provided with a bottom wall that can be selectively opened. When fixing the inductor box from the inside, the bottom wall is opened, and the screw can pass through the second hole 1212 and extend into the first hole 1211. When fixing the inductor box from the outside, the bottom wall is not opened, and the screw extends from the first hole 1211 into the second hole 1212. At this time, the bottom wall can prevent liquid from flowing into the inverter chassis from the outside through the mounting hole.
[0040] Specifically, the connection structure includes an internal threaded sleeve, and the internal threaded sleeve can be selectively arranged in the second hole 1212. When fixing the inductor box from the inside, the internal threaded sleeve is taken out of the second hole 1212, and the screw can pass through the second hole 1212 and extend into the first hole 1211. When fixing the inductor box from the outside, the internal threaded sleeve is placed in the second hole 1212, and at the same time, the outer wall of the internal threaded sleeve is in interference fit with the inner wall of the second hole 1212 for fixation. The screw extends from the first hole 1211 into the second hole 1212 and is screwed with the internal threaded sleeve in the second hole 1212. At this time, the nut of the screw abuts against the inner wall of the inverter chassis, and the threaded connection part of the screw cooperates with the internal threaded sleeve in the second hole to make the mounting surface of the inductor box abut against the outer wall of the inverter chassis to complete the fixation.
[0041] Specifically, the inner wall of the second hole 1212 can be selectively provided with threads. When fixing the inductor box from the inside, no threads are provided in the second hole 1212, and the screw can pass through the second hole 1212 and extend into the first hole 1211. When fixing the inductor box from the outside, the second hole 1212 is tapped to generate threads on the inner wall of the second hole 1212. The screw extends from the first hole 1211 into the second hole 1212 and is screwed with the threads in the second hole 1212. At this time, the nut of the screw abuts against the inner wall of the inverter chassis, and the threaded connection part of the screw tightens the inductor box to make the mounting surface of the inductor box abut against the outer wall of the inverter chassis to complete the fixation.
[0042] Specifically, a guiding surface is provided at the connecting portion between the first hole 1211 and the second hole 1212. The guiding surface extends obliquely from the side wall of the first hole 1211 towards the second hole 1212 to the opening of the second hole 1212. When fixing the inductor box from the inside, the end of the threaded connecting portion of the screw easily passes through the first hole 1211 to abut against the guiding surface and enters the second hole 1212 under the guidance of the guiding surface.
[0043] Specifically, the mounting portion is a rectangular brim-shaped mounting plate extending outward from the outer edge of the notch of the accommodating groove 11. Setting the mounting portion as a mounting plate can prevent the circumferential area surrounded by the accommodating groove 11 from being too large, affecting the heat dissipation of the inductor assembly in the accommodating groove 11; at the same time, the rectangular mounting plate is convenient for arranging multiple inductor boxes outside the inverter chassis, reasonably occupying space.
[0044] Specifically, the mounting plate is provided with a protruding portion protruding towards the direction away from the mounting surface, and the mounting hole is arranged in the protruding portion. The protruding portion can ensure that the first hole 1211 and the second hole 1212 therein have sufficient lengths, facilitating a good fixing effect when using screws for fixing.
[0045] Furthermore, when the bottom wall of the second hole 1212 is provided with a selectively penetrable bottom wall, a positioning mark can be provided at one end of the protruding portion away from the mounting surface. The user can determine the penetration position of the second hole 1212 through this positioning mark.
[0046] Specifically, the mounting surface is provided with a mounting groove 122 for mounting a sealing gasket. The notch of the accommodating groove 11 and the opening of the mounting hole are both located within the enclosed area of the mounting groove 122. After the inductor box equipped with the sealing gasket is mounted outside the inverter chassis, the sealing gasket is in full contact with the inverter chassis, and external liquid cannot enter the positions of the accommodating groove 11 and the mounting hole through the sealing gasket, ensuring that external liquid cannot flow in to affect the functions of the inductor assembly or the inverter chassis.
[0047] Specifically, a heat dissipation fin 13 is provided at one end of the box body 1 away from the mounting surface. The heat dissipation fin 13 can help the inductor assembly arranged in the accommodating groove 11 to dissipate heat and ensure its functional characteristics.
[0048] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.
Claims
1. An inductor box, connected to an inverter chassis, characterized in that: include: A box body (1), the box body (1) comprising a receiving groove (11) and a mounting portion (12) arranged in the circumferential direction of the receiving groove (11), the mounting portion (12) comprising a mounting surface and at least two mounting holes, the mounting holes being arranged on the mounting surface; the mounting holes are stepped holes, the stepped holes comprising a first hole (1211) and a second hole (1212), the aperture of the first hole (1211) being larger than the aperture of the second hole (1212), the first hole (1211) being connected to the mounting surface, the second hole (1212) being arranged at an end of the first hole (1211) away from the mounting surface, and the end of the second hole (1212) away from the first hole (1211) being selectively closed; a connecting structure may be selectively arranged in the second hole (1212); The mounting hole is connected to the inverter chassis via a fixing member, and the fixing member can be selectively fixed in the first hole (1211) or the second hole (1212).
2. The inductor box according to claim 1, characterized in that: The second hole (1212) is provided with a sealing cover which can be selectively connected to the end of the second hole away from the first hole. The sealing cover is connected to the end of the second hole away from the first hole and can close the end of the second hole (1212) away from the first hole (1211).
3. The inductor box according to claim 1, characterized in that: The second hole (1212) is provided with a bottom wall which can be selectively opened.
4. The inductor box according to claim 1, characterized in that: The connection structure comprises a threaded inner sleeve, and the threaded inner sleeve can be selectively arranged in the second hole.
5. The inductor box according to claim 1, characterized in that: The inner wall of the second hole (1212) may optionally be provided with threads.
6. The inductor box according to claim 1, characterized in that: A guide surface is provided at the connection portion between the first hole (1211) and the second hole (1212), and the guide surface extends obliquely from the side wall of the first hole (1211) toward the direction close to the second hole (1212) to the opening of the second hole (1212).
7. The inductor box according to any one of claims 1 to 6, characterized in that: The mounting portion (12) is a rectangular brim-shaped mounting plate extending outward from the outer edge of the slot opening of the accommodating slot (11).
8. The inductor box according to claim 7, characterized in that: The mounting plate is provided with a protruding portion (121) protruding in a direction away from the mounting surface, and the mounting hole is provided in the protruding portion (121).
9. The inductor box according to claim 1, characterized in that: The mounting surface is provided with a mounting groove (122), the mounting groove (122) being used for mounting a sealing gasket, and the notch of the accommodating groove (11) and the opening of the mounting hole are both located within the enclosed area of the mounting groove (122).
10. The inductor box according to claim 1, characterized in that: A heat dissipation fin (13) is provided at one end of the box body (1) away from the mounting surface.