Top cover assembly of household energy storage device

Abstract

The utility model provides a kind of top cover assembly of domestic energy storage equipment, comprising: top plate, it is inverted U type structure, with two first side edges extending along length direction, and two second side edges extending along width direction;Two side plates, oppositely set on the length direction of top plate two sides, and with top plate together enclose and set out the accommodation space of opening downward;And two groups of reinforcing ribs, respectively corresponding set on the outside of two side plates, for increasing the structural strength of side plate.The utility model has the advantages of improving the structural strength of side plate, facilitating the demoulding of integrally-formed top plate and side plate.

Description

Technical Field

[0001] This utility model relates to the field of energy storage technology, and in particular to a top cover assembly for a household energy storage device. Background Technology

[0002] In the field of residential energy storage equipment, the top cover module is an important component of the equipment, and its structural stability and spatial adaptability directly affect the overall performance and user experience of the equipment.

[0003] Traditional residential energy storage equipment top cover components have poor overall resistance to deformation. They are prone to bending and breakage during daily use, transportation, or external impacts, which affects the protection of internal components. Therefore, improvements are needed. Utility Model Content

[0004] One objective of this invention is to provide reinforcing ribs on the outer side of the side plate to enhance its structural strength.

[0005] A further objective of this invention is to ensure that the reinforcing ribs do not extend beyond the second side of the top plate, thus preventing the reinforcing ribs from encroaching on the external space.

[0006] Another further objective of this invention is to provide a ventilation grille at the top of the top plate to improve the heat dissipation performance of the top cover assembly.

[0007] Specifically, this utility model provides a top cover assembly for a residential energy storage device, comprising:

[0008] The top plate has an inverted U-shaped structure, with two first sides extending along the length direction and two second sides extending along the width direction;

[0009] Two side plates are positioned opposite each other on either side of the top plate along its length, and together with the top plate, they enclose a downward-opening accommodating space; and

[0010] Two sets of reinforcing ribs are respectively arranged on the outer sides of the two side plates to increase the structural strength of the side plates.

[0011] Optionally, the top plate is integrally formed with the two side plates.

[0012] Optionally, each of the side plates is spaced apart from its adjacent second side, and each set of reinforcing ribs does not extend beyond the second side.

[0013] Optionally, each set of reinforcing ribs includes:

[0014] The first reinforcing rib runs in the same direction as the second side, so that the side plate forms a groove in the area between the first reinforcing rib and the top plate to facilitate demolding.

[0015] Optionally, each set of reinforcing ribs may also include:

[0016] Multiple second reinforcing ribs are spaced apart on the side plates along the width direction of the top plate.

[0017] Optionally, a plurality of second reinforcing ribs are located below the first reinforcing rib.

[0018] Optionally, each set of reinforcing ribs may also include:

[0019] Two third reinforcing ribs are used to connect the lower end of the first reinforcing rib to the top plate.

[0020] Optionally, the top of the top plate is provided with a ventilation grille for heat dissipation.

[0021] Optionally, the ventilation grille includes:

[0022] Multiple grid strips extend along the length of the top plate and are spaced apart along the width of the top plate; and

[0023] Multiple dividing strips are arranged alternately between any two adjacent grid strips.

[0024] Optionally, the top plate is provided with a plurality of vertically extending screw posts.

[0025] The top cover assembly of this utility model for a residential energy storage device features two sets of reinforcing ribs positioned on the outer sides of the two side panels. These ribs provide direct and continuous support to the side panels through their structural rigidity, fundamentally enhancing the side panels' resistance to bending and torsion. During equipment handling, if the device encounters bumps, tilting, or minor collisions with other objects, the reinforcing ribs quickly transmit and distribute the external force throughout the side and top panels, reducing dents or deformations caused by excessive localized stress on the side panels. This ensures the top cover assembly's protective function for internal components and maintains the integrity of the overall equipment structure.

[0026] Furthermore, in the top cover assembly of the household energy storage device of this utility model, each side plate has a preset interval with the adjacent second side, and the design of each set of reinforcing ribs not extending outward beyond the second side can strictly control the overall outer contour dimensions of the top cover assembly, ensuring that the reinforcing ribs will not protrude outward and encroach on the external space of the device. During device installation, it can avoid spatial interference between the reinforcing ribs and surrounding objects such as walls, furniture, and other appliances, improving the device's adaptability to installation in confined spaces.

[0027] Furthermore, the top cover assembly of the household energy storage device of this utility model has a ventilation grille that utilizes the principle of air convection to allow internal hot air to be naturally discharged through the grille while introducing external cold air to replenish it, forming a continuous heat dissipation cycle, controlling the internal temperature of the device within a reasonable range, and improving the stability and safety of the device operation.

[0028] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0029] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0030] Figure 1 This is a schematic structural diagram of a top cover assembly according to an embodiment of the present utility model;

[0031] Figure 2 This is a schematic side view of a top cover assembly according to an embodiment of the present invention;

[0032] Figure 3 This is a schematic cross-sectional view of a top cover assembly according to an embodiment of the present invention;

[0033] Figure 4 This is a schematic top view of a top cover assembly according to an embodiment of the present invention.

[0034] Figure label:

[0035] 10. Top cover assembly; 110. Top plate; 111. First side; 112. Second side; 113. Screw post; 120. Side plate; 121. Groove; 130. Reinforcing rib; 131. First reinforcing rib; 132. Second reinforcing rib; 133. Third reinforcing rib; 140. Ventilation grille; 141. Grille strip; 142. Divider strip. Detailed Implementation

[0036] Reference will now be made in detail to embodiments of the present invention, one or more of which are illustrated in the accompanying drawings. The various embodiments provided are intended to explain the present invention and not to limit it. In fact, various modifications and variations to the present invention will be apparent to those skilled in the art without departing from the scope or spirit of the invention. For example, a feature illustrated or described as part of one embodiment may be used with another embodiment to produce yet another embodiment. Therefore, the present invention is intended to cover such modifications and variations within the scope of the appended claims and their equivalents.

[0037] The following reference Figures 1 to 4 The top cover assembly 10 of the residential energy storage device according to an embodiment of this utility model is described below. The terms "inner," "outer," "upper," "lower," "top," "bottom," "lateral," and "longitudinal," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. To facilitate illustrating the structure of the device, some of the accompanying drawings of this utility model are shown in perspective.

[0038] In the description of this embodiment, it should be understood that the term "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0039] In the description of this embodiment, the terms "one embodiment," "some embodiments," "some examples," "one example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] As an important component of residential energy storage equipment, the structural design of the top cover module directly affects the overall performance, ease of installation, and service life of the equipment.

[0041] Figure 1 This is a schematic structural diagram of the top cover assembly 10 according to an embodiment of the present invention. Figure 2 This is a schematic side view of the top cover assembly 10 according to an embodiment of the present invention. Figure 3This is a schematic cross-sectional view of the top cover assembly 10 according to an embodiment of the present invention. Figure 4 This is a schematic top view of the top cover assembly 10 according to an embodiment of the present invention, wherein the positional relationship between the protruding first reinforcing rib 131, the second reinforcing rib 132 and the groove 121 is shown. Figure 4 The right side of the top cover assembly 10 is omitted.

[0042] like Figure 1 As shown, the top cover assembly 10 of a residential energy storage device may include a top plate 110, two side plates 120, and two sets of reinforcing ribs 130.

[0043] The top plate 110 has an inverted U-shaped structure. This structural design not only gives the top plate 110 good load-bearing capacity, but also provides effective protection for the internal components of the equipment. The top plate 110 has two first sides 111 extending along the length direction and two second sides 112 extending along the width direction.

[0044] Two side plates 120 are arranged opposite each other on both sides of the length of the top plate 110, and together with the top plate 110, they enclose a downward-opening accommodating space. The accommodating space can provide a relatively closed and safe storage environment for the PCS (Power Conversion System) module inside the household energy storage device.

[0045] Two sets of reinforcing ribs 130 are respectively set on the outer side of the two side plates 120 to increase the structural strength of the side plates 120.

[0046] With the above structure, the two sets of reinforcing ribs 130 are respectively set on the outside of the two side plates 120, which can provide direct and continuous support for the side plates 120 through their own structural rigidity, thereby enhancing the bending and torsional resistance of the side plates 120 from the root.

[0047] During equipment handling, if the equipment encounters bumps, tilting, or minor collisions with other objects, the reinforcing rib 130 can quickly transmit and disperse the external force to the entire side plate 120 and top plate 110, reducing the dents or deformations caused by excessive local stress on the side plate 120, thereby ensuring the protective function of the top cover assembly 10 for the internal components and maintaining the integrity of the overall equipment structure.

[0048] In some embodiments, the two sides of the top plate 110 along its length can be bent downwards in an arc shape to form an inverted U-shaped structure.

[0049] This curved bending design has unique advantages. The curved structure allows the top plate 110 to distribute force more evenly across the entire structure when subjected to external forces, reducing stress concentration. Simultaneously, the curved transition makes the top plate 110 appear smoother and more aesthetically pleasing, enhancing the overall visual appeal of the top cover assembly 10. Furthermore, the curved bending reduces the risk of cracking at the bending point of the top plate 110, because compared to a right-angle transition, the curved transition is more uniform in terms of material tension and compression, which helps maintain the material's performance stability.

[0050] In other embodiments, the two sides of the top plate 110 along its length can be bent downwards at right angles to form an inverted U-shaped structure.

[0051] The right-angle bend design is relatively simple in terms of processing technology, which can improve production efficiency and reduce manufacturing costs. For some residential energy storage devices with specific space layout requirements, the right-angle bend allows the panel to fit more tightly with other components of the device, saving installation space. Moreover, the right-angle structure can provide better lateral support in some cases, making it suitable for applications with high requirements for vertical load-bearing capacity.

[0052] In an optional embodiment, each side plate 120 is spaced apart from its adjacent second side 112, and each set of reinforcing ribs 130 does not extend beyond the second side 112.

[0053] By adopting the above structure, the overall outer contour dimensions of the top cover assembly 10 can be strictly controlled, ensuring that the reinforcing rib 130 will not protrude outward and encroach on the external space of the equipment. During equipment installation, spatial interference between the reinforcing rib 130 and surrounding objects such as walls, furniture, and other electrical appliances can be avoided, improving the equipment's adaptability to installation in confined spaces.

[0054] Existing top cover components are difficult to demold during mold release due to the integrated molding process. As a result, conventional top cover components in the industry generally adopt a split design, that is, the top plate and side plate of the top cover component are independent components.

[0055] In this design, the top plate and side plates need to be molded separately, formed using their respective molds, and then assembled into a single unit through an assembly process. While this split design solves the demolding problem to some extent, it also brings a series of other issues.

[0056] First, developing two separate sets of molds would significantly increase the design, manufacturing, and maintenance costs of the molds, thereby raising the overall production cost of the product.

[0057] Secondly, during the assembly process, the top plate and side plates need to be precisely positioned and connected. This not only increases the complexity of the assembly process and raises labor costs, but may also lead to a decrease in the sealing performance and structural stability of the top cover assembly due to assembly errors, thus affecting the overall performance of the equipment.

[0058] In addition, during long-term use, the connecting parts of the split structure may loosen or age due to factors such as vibration and temperature changes, which reduces the service life and reliability of the top cover assembly.

[0059] In this embodiment, the top plate 110 and the two side plates 120 are integrally formed.

[0060] This one-piece molding design fundamentally solves many problems associated with split designs. One-piece molding eliminates the need for subsequent assembly processes, reducing manual labor and assembly errors, and improving the structural stability and sealing of the top cover assembly 10. Furthermore, one-piece molding requires only one mold for production, significantly reducing mold costs and improving production efficiency while lowering manufacturing costs. More importantly, the integrated structure allows the top plate 110 and side plates 120 to form an organic whole, jointly bearing external forces and vibrations, thus enhancing the structural strength and fatigue resistance of the entire top cover assembly 10 and extending the equipment's service life.

[0061] Each set of reinforcing ribs 130 may include a first reinforcing rib 131, the direction of the first reinforcing rib 131 being consistent with the direction of the second side 112, so that the side plate 120 forms a groove 121 in the area between the first reinforcing rib 131 and the top plate 110 to facilitate demolding.

[0062] The design of the groove 121 effectively solves the demolding problem during one-piece molding. During the demolding process, the groove 121 can provide a force point for the demolding mechanism, making it easier for the demolding mechanism to remove the molded top cover assembly 10 from the mold.

[0063] At the same time, the presence of the groove 121 also reduces the contact area between the top cover assembly 10 and the mold, reduces the friction during demolding, and avoids deformation or damage to the top cover assembly 10 due to excessive demolding force.

[0064] Furthermore, the design of the first reinforcing rib 131 and the groove 121 enhances the structural strength of the side plate 120 without affecting the normal demolding of the mold, achieving a perfect combination of structural performance and production process.

[0065] In some embodiments, each set of reinforcing ribs 130 may further include a plurality of second reinforcing ribs 132, which are spaced apart on the side plate 120 along the width direction of the top plate 110.

[0066] These second reinforcing ribs 132 further enhance the structural strength of the side plate 120. The multiple spaced second reinforcing ribs 132 can form multiple support points in the width direction of the side plate 120, effectively resisting external forces that the side plate 120 may be subjected to in the width direction, and preventing problems such as bending and deformation of the side plate 120. At the same time, the spaced arrangement design also helps to save materials, reducing the weight and cost of the product while ensuring structural strength.

[0067] In one example, multiple second reinforcing ribs 132 are located below the first reinforcing rib 131.

[0068] This layout allows the second reinforcing rib 132 to work in synergy with the first reinforcing rib 131 to form a more stable reinforced structural system. The first reinforcing rib 131 primarily bears the force along the direction of the second side 112, while the second reinforcing rib 132 located below it provides vertical support, enhancing the load-bearing capacity of the entire group of reinforcing ribs 130. Furthermore, this vertical distribution structure makes the distribution of the reinforcing ribs 130 on the side plate 120 more rational, enabling a more even distribution of external forces and improving the overall structural stability of the side plate 120.

[0069] In some embodiments, each set of reinforcing ribs 130 may further include two third reinforcing ribs 133, which are used to connect the lower end of the first reinforcing rib 131 to the top plate 110.

[0070] The third reinforcing rib 133 further strengthens the connection between the first reinforcing rib 131 and the top plate 110, allowing the first reinforcing rib 131 to be more securely fixed to the side plate 120, thus improving the overall structural rigidity of the reinforcing rib group 130. When the side plate 120 is subjected to external forces, the third reinforcing rib 133 can transfer the force borne by the first reinforcing rib 131 to the top plate 110, utilizing the structural strength of the top plate 110 to jointly resist the external forces, thereby better protecting the side plate 120. At the same time, the third reinforcing rib 133 also plays a certain role in reinforcement, preventing the first reinforcing rib 131 from loosening or falling off during long-term use.

[0071] In other embodiments, the number of third reinforcing ribs 133 in each group of reinforcing ribs 130 is not limited to two, but can also be multiple. Multiple third reinforcing ribs 133 can be connected at intervals between the corresponding positions of the first reinforcing rib 131 and the top plate 110.

[0072] In this embodiment, the top plate 110, side plate 120, first reinforcing rib 131, second reinforcing rib 132 and third reinforcing rib 133 of the top cover assembly 10 are all integrally formed.

[0073] Furthermore, the thicknesses of the top plate 110, the side plate 120, the first reinforcing rib 131, the second reinforcing rib 132, and the third reinforcing rib 133 are basically the same.

[0074] In this way, the inner wall contour of the mold cavity can form a relatively regular and uniform stress surface. In the injection molding process, after the molten material fills the mold cavity, it will generate a certain adhesion force with the inner wall of the mold due to cooling and shrinkage. A structure with uniform thickness can make this adhesion force evenly distributed on the surface of each part, avoiding the concentration of adhesion force due to local thickness differences. For example, if the thickness of a certain part is significantly greater than that of other parts, the adhesion force between it and the mold will be significantly stronger when it cools and shrinks, which may cause a sharp increase in demolding resistance in that area, or even cause part deformation or mold jamming.

[0075] From the perspective of demolding force transmission efficiency, a uniform thickness design allows for more even force application in the demolding mechanism (such as ejector pins and push rods). Because the structural strength of each component tends to be balanced due to uniform thickness, the demolding force can be evenly distributed through the overall structure of the top cover assembly 10. This prevents component damage due to excessively thin areas or incomplete demolding due to insufficient force in areas that are too thick. This is especially true for... Figure 4 The groove 121 structure, which is highlighted in the design, has a component thickness that is consistent with other areas. This ensures that the separation force between the groove 121 and the corresponding protrusion of the mold is stable and controllable during demolding, and prevents the groove 121 from becoming a weak point or resistance point during the demolding process due to thickness differences.

[0076] Furthermore, a consistent thickness design simplifies mold processing and maintenance. The wall thickness tolerance of the mold cavity can be set uniformly, eliminating the need for complex stepped designs to accommodate parts of different thicknesses, thus reducing the risk of precision errors in mold processing. At the same time, during long-term use, the wear of the mold will become more uniform due to the even distribution of stress, extending the mold's service life and reducing the probability of demolding failures caused by excessive local wear.

[0077] In some embodiments, the top of the top plate 110 is provided with a ventilation grille 140 for heat dissipation.

[0078] During the operation of residential energy storage devices, the internal electrical components generate a large amount of heat. If this heat cannot be dissipated in time, it will affect the performance and lifespan of the device. The ventilation grille 140 provides an effective heat dissipation channel between the inside of the device and the external environment. Through air convection, the heat inside the device is dissipated to the outside, reducing the internal temperature of the device and ensuring that the electrical components operate normally in a suitable temperature environment.

[0079] In one example, the ventilation grille 140 may include a plurality of grille bars 141 and a plurality of partition bars 142, wherein the plurality of grille bars 141 extend along the length direction of the top plate 110 and are spaced apart along the width direction of the top plate 110, and the plurality of partition bars 142 are staggered between any two adjacent grille bars 141.

[0080] The combined design of the grille bars 141 and the partition bars 142 not only ensures good ventilation but also provides a certain degree of protection, preventing external dust and debris from entering the equipment. Multiple grille bars 141 extend along the length and are spaced apart in the width direction, forming multiple parallel ventilation channels that facilitate airflow. The staggered arrangement of the partition bars 142 further enhances the structural strength of the ventilation grille 140, enabling it to withstand certain external forces and resist damage. Simultaneously, this staggered structure also helps to block larger debris, improving the safety of the equipment.

[0081] In some embodiments, a plurality of vertically extending screw posts 113 are provided within the top plate 110.

[0082] The screw posts 113 provide a convenient connection method between the top cover assembly 10 and other components of the residential energy storage device (such as the PCS module). By passing screws or other connectors through the screw posts 113, the top plate 110 can be firmly fixed to the PCS module, ensuring the installation stability of the top cover assembly 10. Multiple vertically extending screw posts 113 ensure a more uniform and stable connection, preventing the top cover assembly 10 from shaking or shifting during use. Furthermore, the vertical extension design of the screw posts 113 facilitates installation, allowing installers to more easily tighten the screws and improving installation efficiency.

[0083] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A top cover assembly for a residential energy storage device, comprising: include: The top plate has an inverted U-shaped structure, with two first sides extending along the length direction and two second sides extending along the width direction; Two side plates are positioned opposite each other on either side of the top plate along its length, and together with the top plate, they enclose a downward-opening accommodating space; and Two sets of reinforcing ribs are respectively arranged on the outer sides of the two side plates to increase the structural strength of the side plates.

2. The top cover assembly of the residential energy storage device according to claim 1, characterized in that, The top plate is integrally formed with the two side plates.

3. The top cover assembly of the residential energy storage device according to claim 1, characterized in that, Each of the side plates has a predetermined interval between it and its adjacent second side, and each set of reinforcing ribs does not extend outward beyond the second side.

4. The top cover assembly of a home energy storage device according to claim 3, characterized by, Each set of reinforcing ribs includes: The first reinforcing rib runs in the same direction as the second side, so that the side plate forms a groove in the area between the first reinforcing rib and the top plate to facilitate demolding.

5. The top cover assembly of the residential energy storage device according to claim 4, characterized in that, Each set of reinforcing ribs also includes: Multiple second reinforcing ribs are spaced apart on the side plates along the width direction of the top plate.

6. The top cover assembly of the residential energy storage device according to claim 5, characterized in that, Multiple second reinforcing ribs are located below the first reinforcing rib.

7. The top cover assembly of the residential energy storage device according to claim 4, characterized in that, Each set of reinforcing ribs also includes: Two third reinforcing ribs are used to connect the lower end of the first reinforcing rib to the top plate, respectively.

8. The top cover assembly of the residential energy storage device according to claim 1, characterized in that, The top of the top plate is provided with a ventilation grille for heat dissipation.

9. The top cover assembly of the residential energy storage device according to claim 8, characterized in that, The ventilation grille includes: Multiple grid strips extend along the length of the top plate and are spaced apart along the width of the top plate; and Multiple dividing strips are arranged alternately between any two adjacent grid strips.

10. The top cover assembly of the residential energy storage device according to claim 1, characterized in that, The top plate contains multiple vertically extending screw posts.

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