EMC shielding device and energy storage equipment

Abstract

The utility model belongs to the technical field of photovoltaic power generation, and discloses an EMC shielding device and energy storage equipment, the EMC shielding device comprises an outer box and a conductive spring piece, and the outer box comprises a box body and a box cover; the conductive spring piece is provided with a connecting part, the connecting part is fixedly attached to the bottom face of the box cover, and the two sides of the connecting part are symmetrically connected with abutting parts; wherein the pressing part is provided with a stress releasing groove, the stress releasing groove penetrates through the conductive spring piece, and one end, far away from the connecting part, of the stress releasing groove and one end, far away from the connecting part, of the pressing part are arranged at intervals. Through the arrangement of the stress release groove, the contact point positions are increased, the connection stability of the pressing part is improved, meanwhile, the overall strength of the pressing part is ensured, and the service life of the conductive spring piece is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to energy storage equipment technical field especially relates to a EMC shielding device and energy storage equipment. BACKGROUND

[0002] In the existing photovoltaic energy storage power generation field, especially when involving inverter, power supply machine case and other equipment, in order to ensure the stable operation of various electrical elements in it, EMC (Electromagnetic Compatibility, EMC) shielding device needs to be set outside the electrical equipment to shield electromagnetic signals.

[0003] The traditional EMC shielding device is composed of a conductive box body and a box cover, and the electrical connection between the box body and the box cover is realized through a sealing rubber strip with conductive cloth. In actual operation, a rubber hammer is used to reinforce the installation of the sealing rubber strip with conductive cloth, and if the glue bonding is not firm, water leakage problem is likely to occur, and the sealing rubber strip also interferes with the sealing structure at the connection between the box body and the box cover, thereby causing poor air tightness of the machine case. SUMMARY

[0004] One purpose of the utility model is to provide an EMC shielding device with simple structure and high reliability, which can be used for a long time.

[0005] To achieve this purpose, the utility model adopts the following technical scheme: an EMC shielding device, comprising an outer box and a conductive spring sheet, the outer box comprises a box body and a box cover, the box body and the box cover are detachably connected, the inner wall of the box body is provided with a horizontal folding edge; the conductive spring sheet is provided with a connecting part, the connecting part is fixedly attached to the bottom surface of the box cover, two sides of the connecting part are symmetrically connected with pressing parts, the pressing parts are arc-shaped with openings facing the box cover, the pressing parts abut against the folding edge, and the conductive spring sheet is provided with a plurality of connecting parts along the circumference of the box cover; wherein the pressing part is provided with a stress release groove, the stress release groove penetrates through the conductive spring sheet, and one end of the stress release groove away from the connecting part is spaced apart from one end of the pressing part away from the connecting part.

[0006] As a preferred, the connecting part is provided with a through hole, and the connecting part is bolted to the box cover through the through hole.

[0007] As a preferred, the edge of the connecting part is provided with a notch, the bottom surface of the box cover is provided with a protruding part, and the protruding part can abut against the inner wall of the notch.

[0008] As a preferred, the notch is provided with two, the two notches are respectively arranged on the two sides of the connecting part, and the protruding part and the notch are one-to-one correspondingly arranged.

[0009] Preferably, the connecting portion and the pressing portion are connected through a circular arc surface.

[0010] Preferably, the stress release groove is provided with a plurality of stress release grooves, and the plurality of stress release grooves are arranged in the width direction of the conductive spring sheet.

[0011] Preferably, the connecting portion is provided with a plurality of connecting portions, and the plurality of connecting portions are arranged in the length direction of the conductive spring sheet, and the adjacent two connecting portions are connected with the same pressing portion.

[0012] Preferably, the side of the connecting portion towards the box cover is provided with a protective layer and a conductive portion, and the conductive portion is exposed to the protective layer and abuts against the pressing portion.

[0013] Preferably, the side of the box cover towards the box body is provided with an annular mounting groove, the mounting groove surrounds the plurality of conductive spring sheets, a sealing ring is mounted in the mounting groove, and the outer edge of the folding edge is provided with a vertically upward turned-over edge portion, the turned-over edge portion extends into the mounting groove and abuts against the sealing ring.

[0014] Another purpose of the utility model is to provide a kind of energy storage equipment, simple structure and high reliability, can be used for a long time.

[0015] To achieve this purpose, the utility model uses the following technical scheme: energy storage equipment, including energy storage element and the above-mentioned EMC shielding device, the energy storage element is housed in the outer box.

[0016] The utility model has the advantages that: by setting conductive spring sheet, the pressing portion of the conductive spring sheet is abutted against the box body, which can ensure stable contact between the conductive spring sheet and the folding edge, improve the electrical connection stability of the box body and the box cover without affecting the sealing property of the outer box.

[0017] The energy storage equipment provided by another embodiment of the utility model improves the connection stability and prolongs the service life of the conductive spring sheet by setting stress release groove on the conductive spring sheet. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure diagram of the box body of energy storage equipment and the sealing rubber strip with conductive cloth in the related art;

[0019] Figure 2 is a sectional view of the EMC shielding device of the energy storage equipment of the utility model;

[0020] Figure 3 is Figure 2 is an enlarged view of A in the middle;

[0021] Figure 4 is a structural schematic view of the conductive spring sheet of the utility model;

[0022] Figure 5 is a schematic view of the installation of the conductive spring sheet of the utility model;

[0023] Figure 6 is Figure 5 is an enlarged view of B in the middle.

[0024] In the figure: 100, outer box; 110, box body; 111, folded edge; 112, flange; 120, box cover; 121, installation slot; 122, sealing ring; 123, protruding part; 200, conductive spring sheet; 210, connecting part; 211, through hole; 212, notch; 220, pressing part; 221, stress release slot; 300, box body; 310, sealing rubber strip. DETAILED DESCRIPTION

[0025] The utility model will be further described in detail below in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the parts related to the utility model are shown in the drawings, not all structures.

[0026] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under" can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them. Moreover, first feature is on, above and on of second feature includes that first feature is directly above and obliquely above of second feature, or only indicates that horizontal height of first feature is higher than second feature. First feature is below, under and under of second feature includes that first feature is directly below and obliquely below of second feature, or only indicates that horizontal height of first feature is less than second feature.

[0028] In the description of the embodiment, the terms "upper", "lower", "right", "left", "horizontal", "vertical", and "radial" refer to the orientation or position shown in the drawings, which are for convenience and simplification of description and operation only, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the present utility model. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0029] Figure 1 The structure diagram of the box body 300 of the energy storage device and the sealing rubber strip 310 with conductive cloth in the related art is shown. Figure 1 As shown, the conductive box body 300 is provided with the sealing rubber strip 310 with conductive cloth, and the box cover (not shown in the figure) is attached to the box body 300 through the sealing rubber strip 310 with conductive cloth and realizes electrical connection. The energy storage device can realize electrical connection between the box body 300 and the box cover (not shown in the figure) through the sealing rubber strip 310, but cannot realize tight fitting between the box body 300 and the box cover (not shown in the figure). When the energy storage device rotates or moves greatly, the box cover (not shown in the figure) will be separated from the box body 300 due to the failure of tight fitting between the box body 300 and the box cover (not shown in the figure), which will further cause unstable operation of the energy storage device.

[0030] In order to improve this problem, in the related art, glue is used in cooperation with a rubber hammer to reinforce the sealing rubber strip 310 with conductive cloth to strengthen the tightness of the connection between the box body 300 and the box cover (not shown in the figure). However, this method still has some deficiencies, for example, if the glue bonding is not firm, water leakage will easily occur, and the sealing rubber strip 310 will also interfere with the sealing structure of the connection between the box body 300 and the box cover (not shown in the figure), thereby causing poor air tightness of the case. In addition, the sealing rubber strip 310 reinforced by using glue and a rubber hammer can not provide high enough electrical conductivity, which limits the use of the energy storage device in applications requiring high electrical conductivity. Moreover, in a hot and humid environment, the contact resistance of this connection method can rapidly increase with time, which will further affect the stability of the operation of the energy storage device.

[0031] Based on this, the EMC shielding device is provided in the disclosure, referring to Figures 2 to 6 As shown in the figure, the EMC shielding device provided by the embodiment of the application comprises an outer box 100 and a conductive spring sheet 200. The outer box 100 comprises a box body 110 and a box cover 120. The inverter, battery pack and other photovoltaic energy storage devices can be installed in the box body 110. The box body 110 and the box cover 120 are detachably connected. Optionally, the box body 110 and the box cover 120 can be detachably connected by screwing, clamping, inserting, pinning, locking and the like. The inner wall of the box body 110 is provided with a horizontal folding edge 111.

[0032] The conductive spring sheet 200 is provided with a flat connecting part 210. The connecting part 210 is fixedly attached to the bottom surface of the box cover 120. The two sides of the connecting part 210 are symmetrically connected with a pressing part 220. The pressing part 220 is in the shape of a circular arc with an opening facing the box cover 120. In the vertical direction, the height of the pressing part 220 is greater than the distance between the bottom surface of the box cover 120 and the folding edge 111. When the box body 110 is connected with the box cover 120, the pressing part 220 abuts against the folding edge 111, so that the box body 110 and the box cover 120 are conductive and form a closed shielding layer around the photovoltaic energy storage device. The conductive spring sheet 200 is provided with a plurality of connecting parts 210 at intervals along the circumference of the box cover 120.

[0033] Among them, the pressing part 220 is provided with a stress release groove 221. The stress release groove 221 penetrates the conductive spring sheet 200 along the width direction of the conductive spring sheet 200, and the one end of the stress release groove 221 away from the connecting part 210 is arranged at intervals with the one end of the pressing part 220 away from the connecting part 210. In other words, the stress release groove 221 is opened in the pressing part 220 and is at a certain distance from the edge of the pressing part 220, that is, the projection of the stress release groove 221 in the horizontal plane is located inside the projection of the pressing part 220 in the horizontal plane.

[0034] It can be understood that by arranging the conductive spring sheet 200, the circular arc-shaped pressing part 220 of the conductive spring sheet 200 abuts against the box body 110, which can ensure stable contact between the conductive spring sheet 200 and the folding edge 111. On the premise of not affecting the sealing performance of the outer box 100, the cost is reduced, and the electrical connection stability of the box body 110 and the box cover 120 is improved. In addition, the pressing part 220 is symmetrically arranged on both sides of the connecting part 210. The reaction forces of the pressing parts 220 on both sides acting on the connecting part 210 are counteracted, so that the connecting part 210 is in force balance, the stress distribution of the conductive spring sheet 200 is optimized, the skew problem of the conductive spring sheet 200 after long-term use is avoided, and the installation stability of the conductive spring sheet 200 is improved.

[0035] In the related art, in order to realize multi-point contact connection, the metal spring sheet is cut into multiple separated metal strips at the part connected with the box body. However, the separated metal strip structure is fragile, and is prone to fatigue failure after long-term pressing against the box body, affecting the EMC shielding performance.

[0036] Therefore, in the present disclosure, by arranging the stress release groove 221, on the one hand, the stress release groove 221 is arranged away from one end of the connecting part 210 and one end of the pressing part 220 away from the connecting part 210, that is, the stress release groove 221 divides the whole pressing part 220 into two parts, and the end of the divided pressing part 220 away from the connecting part 210 still remains connected, which increases the contact points and improves the connection stability of the pressing part 220, and at the same time, the divided pressing part 220 is still constrained at the end away from the connecting part 210, ensuring the overall strength of the pressing part 220, so that the pressing part 220 can stably abut against the folded edge 111 for a long time, prolonging the service life of the conductive spring sheet 200; on the other hand, the stress release groove 221 can disperse the stress between the pressing part 220 and the folded edge 111, avoiding excessive stress at the pressing part 220, further prolonging the service life of the conductive spring sheet 200.

[0037] It should be noted that in another embodiment, the conductive spring sheet 200 can be installed in reverse, at this time, the two sides of the pressing part 220 are symmetrically provided with flat connecting parts 210, and the two connecting parts 210 are respectively fixedly attached to the bottom surface of the box cover 120 and abut against the folded edge 111 through the circular-arc-shaped pressing part 220.

[0038] Further, the conductive spring sheet 200 is a stainless steel piece, and the connecting part 210 and the pressing part 220 are integrally formed stamping parts.

[0039] The conductive spring sheet 200 is made of stainless steel, which further reduces the cost on the premise of ensuring the conductivity, and the conductive spring can be quickly stamped by a mold without secondary processing, which is suitable for mass production.

[0040] Referring to FIGS. 1-4, Figure 2 and Figure 3 It can be understood that the side of the box cover 120 facing the box body 110 is provided with an annular mounting groove 121, the mounting groove 121 surrounds the plurality of conductive spring sheets 200, a sealing ring 122 is mounted in the mounting groove 121, and the outer edge of the folded edge 111 is provided with a vertical upward flange 112 part, the flange 112 part extends into the mounting groove 121 and abuts against the sealing ring 122.

[0041] Compared with the traditional sealing rubber strip with conductive cloth, the conductive spring sheet 200 has simple structure, small space occupation and low installation requirement. The box cover 120 can be provided with a mounting groove 121 outside the conductive spring, and a sealing ring 122 is further mounted, so as to effectively improve the sealing performance of the outer box 100 and ensure the EMC shielding performance of the EMC shielding device.

[0042] Further, the folded edge 111 is provided with a protective layer and a conductive part on the side facing the box cover 120. The conductive part is exposed to the protective layer and abuts against the pressing part 220.

[0043] Specifically, when the box body 110 and the box cover 120 are both conductive metal parts, the inner wall of the box body 110 is coated with a protective layer to avoid oxidation and corrosion of the inner wall of the box body 110, thereby prolonging the service life of the box body 110. At this time, the position corresponding to the conductive spring sheet 200 of the protective layer is scraped to expose the originally conductive inner wall of the box body 110. The inner wall of the box body 110 exposed to the protective layer is the conductive part. When the box body 110 and the box cover 120 are both plastic parts, the inner wall of the box body 110 and the bottom wall of the box cover 120 are coated with a layer of anti-corrosion conductive paint, which is the protective layer. The part of the conductive paint abutting against the pressing part 220 is the conductive part.

[0044] By setting the protective layer and the conductive part, the service life of the box body 110 is effectively prolonged without affecting the conduction of the box body 110 and the box cover 120.

[0045] Referring to FIGS. 1 to 3, Figure 2 and Figure 4 It can be understood that the center of the connecting part 210 is provided with a through hole 211, and the connecting part 210 is bolted with the box cover 120 through the through hole 211.

[0046] By setting the through hole 211, the connecting part 210 can be bolted with the box body 110, further simplifying the structure of the conductive spring sheet 200 and improving the assembly convenience of the conductive spring sheet 200.

[0047] Further, the connecting part 210 and the pressing part 220 are transitioned through a circular arc surface. When the spring sheet is stamped, the stamping direction of the circular arc surface is opposite to the stamping direction of the circular arc-shaped pressing part 220.

[0048] The connecting part 210 and the pressing part 220 are transitioned through a circular arc surface, that is, the connection between the connecting part 210 and the pressing part 220 is also circular arc-shaped, which can better disperse stress, avoid damage to the connection due to excessive local stress, and ensure the firmness and stability of the connection. And the circular arc surface design can better adapt to the swing deformation of the pressing part 220, reduce the friction, and improve the structural rationality of the conductive spring sheet 200.

[0049] Referring to FIGS. 1 to 3, Figures 4 to 6As shown, it can be understood that the edge of the connecting portion 210 is provided with a notch 212. Optionally, the notch 212 has a circular arc shape, a rectangular shape or a polygonal shape, and the bottom surface of the box cover 120 is provided with a protrusion 123 which can abut against the inner wall of the notch 212.

[0050] By arranging the notch 212, after the conductive spring sheet 200 is installed, the bolt in the through hole 211 cooperates with the protrusion 123 in the notch 212, which can limit the conductive spring sheet 200 in the circumferential direction, avoid the deflection and displacement of the conductive spring sheet 200, and effectively improve the installation stability of the conductive spring sheet 200.

[0051] Further, the notch 212 is provided with two notches 212, and the two notches 212 are arranged on both sides of the connecting portion 210, and the protrusion 123 is arranged one by one corresponding to the notch 212.

[0052] The two notches 212 are arranged respectively, and the two notches 212 are distributed on both sides of the connecting portion 210. The user can preliminarily position the conductive spring sheet 200 by cooperating the two protrusions 123 and the two notches 212 before connecting the bolt, which saves the time required for aligning the through hole 211 and the screw hole on the box cover 120, and further improves the assembly convenience of the conductive spring sheet 200. Optionally, the two notches 212 can be symmetrically arranged on both sides of the through hole 211, thereby facilitating the design and processing of the conductive spring sheet 200.

[0053] It can be understood that the stress release groove 221 is provided with a plurality of stress release grooves 221 which are arranged at intervals in the width direction of the conductive spring sheet 200.

[0054] By arranging a plurality of stress release grooves 221, the whole pressing portion 220 can be divided into a plurality of arc-shaped conductive metal blocks, and each conductive metal block can independently press the folded edge 111, thereby greatly increasing the contact point position of the pressing portion 220 and the folded edge 111, and avoiding the poor contact problem which is prone to occur due to the small number of contact point positions.

[0055] Further, the connecting portion 210 is provided with a plurality of connecting portions 210 which are arranged at intervals in the length direction of the conductive spring sheet 200, and adjacent two connecting portions 210 are connected with the same pressing portion 220. At this time, the conductive spring sheet 200 has a snake shape.

[0056] By arranging a plurality of connecting portions 210, the length of the conductive spring sheet 200 can be extended, the contact point position of the pressing portion 220 and the folded edge 111 is increased, and at the same time, it is suitable for different length sizes of the outer box 100, thereby effectively improving the practicality of the conductive spring sheet 200.

[0057] The utility model also provides a kind of energy storage equipment, including energy storage element and above-mentioned EMC shielding device, and energy storage element is housed in the outer box of EMC shielding device. Optionally, energy storage element includes battery pack and transformer etc. electrically connected with battery pack, and not described here.

[0058] The energy storage equipment provided in the embodiments of the utility model includes the EMC shielding device described above. Therefore, the energy storage equipment provided in the embodiments of the utility model also has the beneficial effects described in the above embodiments, which will not be described here.

[0059] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model claims.

Claims

1. An EMC shielding device, characterised in that, The utility model relates to an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200).

2. The EMC shielding device according to claim 1, characterized in that The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200).

3. The EMC shielding device of claim 1, wherein, The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200).

4. The EMC shielding device according to claim 3, characterized in that The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200).

5. The EMC shielding device of claim 1, wherein, The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200).

6. The EMC shielding device according to any one of claims 1-5, characterized in that, The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200).

7. An EMC shielding arrangement according to any one of claims 1-5, characterised in that, The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200).

8. An EMC shielding arrangement according to any one of claims 1-5, characterised in that, The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200).

9. An EMC shielding arrangement according to any one of claims 1-5, characterised in that, The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200).

10. Energy storage device, characterized by The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring sheets (200). The utility model discloses an EMC shielding device and a storage energy element, and the EMC shielding device comprises an outer box (100) and a plurality of conductive spring

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