Filter capacitor fixing support, filter capacitor assembly and energy storage converter

Abstract

The utility model provides a filter capacitor fixing support. The filter capacitor fixing support comprises a fixing bottom plate; the fixed frame is fixed on the fixed bottom plate, the top of the fixed frame is provided with a plurality of fixed ports, each fixed port is provided with a protective rubber ring, the fixed frame is internally provided with a mounting space communicated with the plurality of fixed ports, the filter capacitor penetrates through the protective rubber rings and is at least partially accommodated in the mounting space, and the bottom end of the filter capacitor is fixed with the fixed bottom plate. And the filter capacitor is in interference fit with the protection rubber ring. The utility model also provides a filter capacitor assembly and an energy storage converter. According to the utility model, the bottom end of the filter capacitor is fixed with the fixed bottom plate, the filter capacitor is in interference fit with the protective rubber ring, and the bottom end of the filter capacitor and the body are respectively fixed and limited through the fixed bottom plate and the protective rubber ring, so that the structural stability and the shockproof performance of the filter capacitor are improved, and the stability of the filter capacitor in the transportation process is further improved; the product quality of the energy storage converter is ensured, and extra material, installation and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of energy storage converters, and in particular relates to a filter capacitor fixing bracket, a filter capacitor component and an energy storage converter. Background Art

[0002] The power conversion system (PCS) can control the charging and discharging process of the battery, perform AC / DC conversion, and directly supply power to the AC load when there is no power grid. The PCS consists of a DC / AC bidirectional converter, a control unit, etc. The PCS controller receives background control instructions through communication, and controls the converter to charge or discharge the battery according to the sign and size of the power instruction, thereby adjusting the active power and reactive power of the power grid. The PCS controller communicates with the BMS through the CAN interface to obtain the battery pack status information, and can realize protective charging and discharging of the battery to ensure safe battery operation.

[0003] The filter capacitors in the existing PCS are generally set at the corresponding positions by studs. During transportation, when the PCS vibrates, the studs of the filter capacitor body may break, causing damage to the filter capacitor and the leakage of its internal liquid, which in turn causes damage to the PCS and increases material, installation and maintenance costs. Utility Model Content

[0004] The utility model provides a filter capacitor fixing bracket, which aims to solve the technical problem that the filter capacitor in the existing energy storage converter is fixed by a stud, and the stud of the filter capacitor body may break when vibration occurs, causing damage to the filter capacitor and leakage of its internal liquid, thereby causing damage to the PCS and additional increase in material, installation and maintenance costs.

[0005] The utility model is implemented in this way: a filter capacitor fixing bracket comprises:

[0006] fixing the base plate; and

[0007] A fixed frame is fixed on the fixed base plate, a plurality of fixing openings are provided on the top of the fixed frame, a protective rubber ring is provided at each of the fixing openings, an installation space connected to the plurality of fixing openings is provided in the fixed frame, a filter capacitor passes through the protective rubber ring and is at least partially accommodated in the installation space, a bottom end of the filter capacitor is fixed to the fixed base plate, and the filter capacitor and the protective rubber ring are interference fit.

[0008] Furthermore, the fixed bottom plate is in the shape of a rectangular plate, and the fixed frame is in the shape of a rectangular body.

[0009] Furthermore, the plurality of fixing openings are distributed in an array on the top of the fixing frame.

[0010] Furthermore, heat dissipation holes communicating with the installation space are provided on two side walls of the fixing frame extending along the length direction of the fixing base plate.

[0011] Furthermore, there are two heat dissipation holes, and the two heat dissipation holes are arranged at intervals along the length direction of the side wall of the fixed frame.

[0012] Furthermore, heat dissipation openings communicating with the installation space are provided on both sides of the fixing frame extending along the width direction of the fixing base plate.

[0013] Furthermore, the fixed base plate and the fixed frame are both made of metal.

[0014] The utility model also provides a filter capacitor assembly, comprising:

[0015] a plurality of filter capacitors; and

[0016] According to any one of the above filter capacitor fixing brackets, a plurality of filter capacitors are arranged on the filter capacitor fixing bracket.

[0017] Furthermore, a plurality of the filter capacitors are detachably mounted on the filter capacitor fixing bracket.

[0018] The utility model also provides an energy storage converter, comprising a filter capacitor assembly according to any one of the above items.

[0019] In an embodiment of the utility model, a plurality of fixing openings are provided on the top of the fixing frame, and a protective rubber ring is provided at each fixing opening. An installation space connected with the plurality of fixing openings is provided in the fixing frame. The filter capacitor passes through the protective rubber ring and is at least partially accommodated in the installation space. The bottom end of the filter capacitor is fixed to the fixed bottom plate, and the filter capacitor and the protective rubber ring are interference fit. The bottom end and the body of the filter capacitor are respectively restricted and fixed by the fixed bottom plate and the protective rubber ring, thereby improving the structural stability and shockproof performance of the filter capacitor, thereby improving its stability during transportation, ensuring the product quality of the energy storage inverter, and reducing additional material, installation and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of a filter capacitor fixing bracket provided by an embodiment of the utility model;

[0021] Figure 2 It is a structural schematic diagram of a filter capacitor fixing bracket provided by an embodiment of the utility model;

[0022] Figure 3 is another schematic diagram of the filter capacitor fixing bracket provided by the embodiment of the utility model;

[0023] Figure 4This is another structural schematic diagram of the filter capacitor fixing bracket provided by the embodiment of the utility model;

[0024] Figure 5 This is another structural schematic diagram of the filter capacitor fixing bracket provided by the embodiment of the utility model.

[0025] Description of main component symbols:

[0026] Filter capacitor fixing bracket-10; fixing base plate-11; fixing frame-12; fixing opening-121; protective rubber ring-122; installation space-123; heat dissipation hole-124; heat dissipation opening-125; filter capacitor-20; filter capacitor assembly-100. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model. In addition, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0028] In the description of the present invention, it is necessary to understand that the orientation or positional relationship indicated in the description of the direction and positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention.

[0031] In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those skilled in the art can recognize the application of other processes and / or the use of other materials.

[0032] See also Figures 1 to 5 The filter capacitor fixing bracket 10 of the utility model embodiment includes:

[0033] A fixed base plate 11; and

[0034] A fixed frame 12 is fixed on the fixed base plate 11, and a plurality of fixing openings 121 are provided on the top of the fixed frame 12. A protective rubber ring 122 is provided at each fixing opening 121. An installation space 123 connected to the plurality of fixing openings 121 is provided in the fixed frame 12. The filter capacitor 20 passes through the protective rubber ring 122 and is at least partially accommodated in the installation space 123. The bottom end of the filter capacitor 20 is fixed to the fixed base plate 11, and the filter capacitor 20 and the protective rubber ring 122 are interference fit.

[0035] In the filter capacitor fixing bracket 10 of the embodiment of the utility model, a plurality of fixing openings 121 are provided on the top of the fixing frame 12, and a protective rubber ring 122 is provided at each fixing opening 121. An installation space 123 connected to the plurality of fixing openings 121 is provided in the fixing frame 12. The filter capacitor 20 passes through the protective rubber ring 122 and is at least partially accommodated in the installation space 123. The bottom end of the filter capacitor 20 is fixed to the fixed bottom plate 11, and the filter capacitor 20 and the protective rubber ring 122 are interference fit. The bottom end and the body of the filter capacitor 20 are respectively restricted and fixed by the fixed bottom plate 11 and the protective rubber ring 122, thereby improving the structural stability of the filter capacitor 20 and improving the shockproof performance, thereby improving its stability during transportation, ensuring the product quality of the energy storage inverter, and reducing additional material, installation and maintenance costs.

[0036] In this embodiment, the filter capacitor fixing bracket 10 is fixed in the energy storage converter through the fixing base plate 11, and can be fixed by screwing, riveting, welding, clamping or bonding, etc., which can be selected according to actual needs.

[0037] Preferably, the fixed base plate 11 can be fixed in the energy storage converter by screwing, which is convenient for assembly and disassembly and has high stability.

[0038] In this embodiment, the fixed bottom plate 11 is roughly in the shape of a rectangular plate, which is convenient for stably fixing the filter capacitor fixing bracket 10 in the energy storage converter to improve stability. The fixed bottom plate 11 can be a solid plate to improve structural strength, or a hollow plate to control its own weight and reduce material costs.

[0039] In addition, the fixing frame 12 is roughly in a rectangular shape, which is conducive to the stable combination of the fixing frame 12 and the fixing base plate 11, and also facilitates the stable installation of the filter capacitor 20. Moreover, the regular shape of the fixing base plate 11 and the fixing frame 12 makes the entire filter capacitor fixing bracket 10 more regular and beautiful, and is more convenient for installation, storage, transportation, etc.

[0040] It can be understood that the installation space 123 is surrounded by the walls of the fixed frame 12 and the top wall of the fixed base plate 11 without the need for additional settings. The installation space 123 can be used not only to accommodate the filter capacitor 20, but also to dissipate heat for the filter capacitor 20.

[0041] Furthermore, the fixing base plate 11 and the fixing frame 12 are both made of metal, which can not only improve the overall strength of the filter capacitor fixing bracket 10 , but also improve the heat dissipation effect of the filter capacitor 20 .

[0042] In this embodiment, the fixed frame 12 can be fixed to the fixed base plate 11 by screwing, welding, etc. Preferably, after the bottom edge of the fixed frame 12 is bent, the bent portion is fitted to the upper surface of the fixed base plate 11, and then the bent portion is fixed to the fixed base plate 11 by screws to ensure the stability of the fixed frame 12 on the fixed base plate 11.

[0043] In a feasible embodiment, the fixed base plate 11 and the fixed frame 12 can also be integrally formed, such as being integrally cast using a metal material, to improve the integrity of the filter capacitor fixing bracket 10 and further improve the structural strength.

[0044] In this embodiment, the protective rubber ring 122 may be bonded to the fixing opening 121 , and the diameter of the protective rubber ring 122 may be slightly smaller than the diameter of the filter capacitor 20 , thereby achieving an interference fit with the filter capacitor 20 .

[0045] The protective rubber ring 122 can be made of a material with certain deformation ability such as rubber or plastic, which can not only stably fix the filter capacitor 20 at the fixing port 121 , but also prevent wear and damage caused by direct contact between the filter capacitor 20 and the fixing port 121 .

[0046] In this embodiment, the bottom end of the filter capacitor 20 can be fixed to the fixed base plate 11 by screws, and the main body is interference fit with the protective rubber ring 122 to facilitate the disassembly and installation of the filter capacitor 20. The top end of the filter capacitor 20 is exposed from the fixing port 121 to facilitate electrical connection with other components.

[0047] See also Figures 1 to 5Furthermore, the plurality of fixing openings 121 are distributed in an array on the top of the fixing frame 12, so that the filter capacitors 20 are also distributed in an array in the fixing frame 12, so that the arrangement of the filter capacitors 20 is regular and beautiful, and the installation space 123 of the fixing frame 12 can be better utilized. In addition, the plurality of filter capacitors 20 are spaced at a certain distance to avoid contact to ensure the heat dissipation effect.

[0048] See also Figures 1 to 5 Furthermore, the two side walls (such as Figure 1 The front and rear side walls (as shown) are both provided with heat dissipation holes 124 connected to the installation space 123, which is beneficial to the flow of hot air and improves the heat dissipation effect of the filter capacitor 20.

[0049] See also Figure 1 and Figure 4 Furthermore, there are two heat dissipation holes 124 , and the two heat dissipation holes 124 are spaced apart along the length direction of the side wall of the fixed frame 12 .

[0050] That is, there is a spacing structure between the two heat dissipation holes 124, and the spacing structure is a part of the side wall of the fixed frame 12, which can not only ensure the structural strength of the fixed frame 12, but also ensure that the area of ​​the two heat dissipation holes 124 formed by isolation is large enough to ensure effective heat dissipation of the filter capacitor 20.

[0051] In other embodiments, the number of the heat dissipation holes 124 may be other and can be set according to specific needs.

[0052] See also Figures 1 to 5 Furthermore, the fixing frame 12 extends along the width direction of the fixing base plate 11 on both sides (such as Figure 1 A heat dissipation port 125 communicating with the installation space 123 is provided on both the left and right sides (as shown).

[0053] Specifically, the fixed frame 12 is not provided with complete side walls on both sides extending along the width direction of the fixed base plate 11, but only a partial connecting wall is provided at the top to connect the top wall and the two side walls of the fixed frame 12. The edges of the connecting wall, the edges of the two side walls and the edge of the fixed base plate 11 form the above-mentioned heat dissipation port 125. While ensuring the structural strength of the fixed frame 12, the area of ​​the heat dissipation port 125 is large enough to further improve the heat dissipation effect of the filter capacitor 20. There is no need to open a heat dissipation port 125 separately, thereby reducing the manufacturing process.

[0054] See also Figures 1 to 5 The filter capacitor assembly 100 of the embodiment of the utility model includes:

[0055] A plurality of filter capacitors 20; and

[0056] According to any one of the above filter capacitor fixing brackets 10 , a plurality of filter capacitors 20 are disposed on the filter capacitor fixing bracket 10 .

[0057] In the filter capacitor assembly 100 of the embodiment of the utility model, a plurality of fixing openings 121 are provided on the top of the fixing frame 12, and a protective rubber ring 122 is provided at each fixing opening 121. An installation space 123 connected to the plurality of fixing openings 121 is provided in the fixing frame 12. The filter capacitor 20 passes through the protective rubber ring 122 and is at least partially accommodated in the installation space 123. The bottom end of the filter capacitor 20 is fixed to the fixed bottom plate 11, and the filter capacitor 20 and the protective rubber ring 122 are interference fit. The bottom end and the body of the filter capacitor 20 are respectively restricted and fixed by the fixed bottom plate 11 and the protective rubber ring 122, thereby improving the structural stability of the filter capacitor 20 and improving the shockproof performance, thereby improving its stability during transportation, ensuring the product quality of the energy storage inverter, and reducing additional material, installation and maintenance costs.

[0058] Furthermore, the plurality of filter capacitors 20 can be detachably mounted on the filter capacitor fixing bracket 10 , that is, can be detachably mounted on the fixing frame 12 .

[0059] In this embodiment, the bottom end of the filter capacitor 20 can be detachably fixed to the fixed base plate 11 by screws, while the main body of the filter capacitor 20 is fixed to the protective rubber ring 122 by interference fit, which is convenient for the disassembly and installation of the filter capacitor 20, and the top end of the filter capacitor 20 is exposed from the fixing port 121, which is convenient for electrical connection with other components.

[0060] When the filter capacitor 20 needs to be installed, the filter capacitor 20 is first passed through the protective rubber ring 122 until its bottom end abuts against the fixed bottom plate 11, and then screwed through the screw hole on the fixed bottom plate 11 and screwed to the screw hole at the bottom end of the filter capacitor 20 to achieve the installation of the filter capacitor 20 on the filter capacitor fixing bracket 10. When the filter capacitor 20 needs to be disassembled, the screws on the fixed bottom plate 11 are removed, and the filter capacitor 20 is removed from the protective rubber ring 122.

[0061] The energy storage converter of the embodiment of the present utility model comprises a filter capacitor assembly 100 according to any one of the above items.

[0062] In the energy storage converter of the embodiment of the utility model, a plurality of fixing openings 121 are provided on the top of the fixing frame 12, and a protective rubber ring 122 is provided at each fixing opening 121. An installation space 123 connected to the plurality of fixing openings 121 is provided in the fixing frame 12. The filter capacitor 20 passes through the protective rubber ring 122 and is at least partially accommodated in the installation space 123. The bottom end of the filter capacitor 20 is fixed to the fixed bottom plate 11, and the filter capacitor 20 and the protective rubber ring 122 are interference fit. The bottom end and the body of the filter capacitor 20 are respectively restricted and fixed by the fixed bottom plate 11 and the protective rubber ring 122, thereby improving the structural stability of the filter capacitor 20 and improving the shockproof performance, thereby improving its stability during transportation, ensuring the product quality of the energy storage converter, and reducing additional material, installation and maintenance costs.

[0063] In the description of this specification, the description with reference to the terms "Example 1", "Example 2", etc. means that the specific features, structures, materials or characteristics described in conjunction with the implementation or example are included in at least one implementation or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same implementation or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more implementations or examples in a suitable manner.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A filter capacitor fixing bracket, characterized in that: include: Fixed bottom plate; as well as A fixed frame is fixed on the fixed base plate, a plurality of fixing openings are provided on the top of the fixed frame, a protective rubber ring is provided at each of the fixing openings, an installation space connected to the plurality of fixing openings is provided in the fixed frame, a filter capacitor passes through the protective rubber ring and is at least partially accommodated in the installation space, a bottom end of the filter capacitor is fixed to the fixed base plate, and the filter capacitor and the protective rubber ring are interference fit.

2. The filter capacitor fixing bracket according to claim 1, characterized in that: The fixed bottom plate is in the shape of a rectangular plate, and the fixed frame is in the shape of a rectangular body.

3. The filter capacitor fixing bracket according to claim 2, characterized in that: The plurality of fixing openings are distributed in an array on the top of the fixing frame.

4. The filter capacitor fixing bracket according to claim 2, characterized in that: Both side walls of the fixing frame extending along the length direction of the fixing base plate are provided with heat dissipation holes communicating with the installation space.

5. The filter capacitor fixing bracket according to claim 4, characterized in that: There are two heat dissipation holes on a single side wall, and the two heat dissipation holes are arranged at intervals along the length direction of the side wall.

6. The filter capacitor fixing bracket according to claim 2, characterized in that: Both sides of the fixing frame extending along the width direction of the fixing base plate are provided with heat dissipation openings communicating with the installation space.

7. The filter capacitor fixing bracket according to claim 1, characterized in that: The fixed bottom plate and the fixed frame are both made of metal.

8. A filter capacitor assembly, characterized in that: include: Multiple filter capacitors; as well as According to the filter capacitor fixing bracket according to any one of claims 1 to 7, a plurality of filter capacitors are arranged on the filter capacitor fixing bracket.

9. The filter capacitor assembly according to claim 8, characterized in that: A plurality of the filter capacitors are detachably mounted on the filter capacitor fixing bracket.

10. An energy storage converter, characterized in that: Comprising the filter capacitor assembly according to any one of claims 8 to 9.

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