A profile structure for an energy storage device case and an assembly structure thereof

Abstract

The application discloses a profile structure and an assembling structure thereof, which comprises a main body structure, the main body structure is internally provided with a hollow structure penetrating through the length direction of the main body structure, and gas is subjected to convection heat exchange through the hollow structure; at both ends of the main body structure, along the length direction of the main body structure, a folded edge connecting piece A and a folded edge connecting piece B are respectively arranged; the folded edge connecting piece A and the folded edge connecting piece B are both provided with a bending part, and the bending part is a bent part bent to the same side or different sides; the profile can be applied to the four surfaces of the box body, better heat dissipation is achieved in the profile design, the four side plates are respectively provided with two bending connecting pieces, the assembling with a front cover and a back plate is realized through the two bending connecting pieces, and better sealing effect is achieved; meanwhile, a connecting structure of a protruding piece embedded into a groove is adopted between the profile and a radiator, and the sealing property and the connecting strength are further improved; the structure has less welding positions, and the product performance is more stable.

Description

Technical Field

[0001] This invention relates to the field of energy storage equipment enclosure structure technology, and in particular to a profile structure for energy storage equipment enclosures and its assembly structure. Background Technology

[0002] Currently, the structural designs of energy storage inverter enclosures on the market are basically die-cast unibody, sheet metal stamping, or welded enclosures. Die-cast unibody enclosures are the most common on the market, as their thickness does not need to be uniform. The enclosure can be integrated with the heat sink, and the mold ensures a virtually defect-free appearance. Sheet metal stamping enclosures require uniform product thickness, and the heat sink and enclosure are connected by bolts or other mechanical methods. The mold ensures a virtually defect-free appearance. Welded enclosures do not require molds. The heat sink and enclosure are connected by bolts or other mechanical methods, and welding is done manually. However, welding is required in multiple locations to achieve stable assembly. The product undergoes significant deformation due to multiple welding operations, making assembly difficult and even affecting the enclosure's sealing performance.

[0003] However, die casting requires a die-casting mold, and sheet metal stamping requires a stamping die. Both methods are costly, and once the mold is made, it cannot be changed, making it difficult to address later structural optimizations or modifications. Traditional welded enclosures, due to numerous weld points, result in significant deformation, assembly difficulties, and a tendency to crack, affecting the product's sealing performance. Summary of the Invention

[0004] This invention provides a profile structure for an energy storage device enclosure and its assembly structure. The side panels of the energy storage device enclosure adopt a profile structure with folded edge connectors. The side panels are assembled with the front cover and back panel through the folded edge connectors of the side panels. By using the profile structure of this patent, as well as the assembly structure and energy storage enclosure based on the profile structure, the problems of large deformation and many weld points of traditional welded enclosures are overcome. It also has the characteristics of low cost, simple structure, easy assembly, and easy maintenance. At the same time, the application scope of this profile and assembly structure is not limited to energy storage devices. This profile and assembly structure can also be used in other fields.

[0005] One type of profile structure includes a main structure with a perforated structure running through the length of the main structure, through which gas undergoes convective heat exchange.

[0006] At both ends of the main structure, along the length of the main structure, there are respectively folded edge connector A and folded edge connector B; both folded edge connector A and folded edge connector B have bending portions, which are bent portions formed by bending to the same side or to different sides.

[0007] The main structure is formed by extrusion molding. The extruded main structure has at least three sides, which are connected in sequence and form a hollow structure inside. For ease of processing, the shape of the main structure is not limited and can be one of a variety of three-dimensional structures such as triangular prism, quadrangular prism, and pentagonal prism.

[0008] To improve heat dissipation, at least one of the at least three sides has at least one notch.

[0009] To facilitate connection with other components of the front cover, folded edge connector A and folded edge connector B are arranged along the extension direction of the main structure. The folded edge connector B and the folded edge connector A are folded out from another side of the main structure, and the folded edge connector B is located at the far end of the folded edge connector A, which can achieve connection with two components at the same time.

[0010] The folded edge connector B has at least one protrusion in the bent portion to improve the tightness of the connection with other components.

[0011] An assembly structure with a profile structure includes the aforementioned profile structure and at least one adjacent structure assembled with the aforementioned profile structure. A folded edge connector B overlaps parallel to an adjacent structure or is snapped into place by the protrusion. The protrusion is embedded in a groove on the surface of the adjacent structure to achieve snapping. The folded edge connector A abuts against the connection between the profile structure and another adjacent structure.

[0012] A box with a profile structure, wherein the side of the box includes at least one side using the aforementioned profile structure, and the side and at least two adjacent sides are assembled using the aforementioned assembly structure; the adjacent side and at least one side using the aforementioned profile structure are assembled using the aforementioned assembly structure.

[0013] A box with a profile structure further includes a front cover, a back panel, and a side panel connected between the front cover and the back panel, wherein at least one of the side panels has the profile structure and is assembled with the front cover and the back panel using the assembly structure.

[0014] An external component is installed on the housing. A groove is formed on the surface of the external component, and a protruding part of the profile structure is embedded in the groove, so that the external component can be assembled with at least one adjacent side plate that adopts a profile structure.

[0015] Beneficial effects: This invention solves the problems of high cost and unchangeable molds for die casting and stamping by welding the profiles together, and overcomes the disadvantages of large deformation and difficulty in production caused by multiple welding of sheet metal boxes.

[0016] This invention utilizes this profile on all four sides of the enclosure, achieving better heat dissipation through its design. Each of the four side panels has two bent connectors, which facilitate assembly with the front cover and back panel, resulting in a good sealing effect. Furthermore, the connection between the profile and the heat sink employs a protruding part embedded in a groove, further enhancing sealing and connection strength. This structure reduces the number of welding points, leading to more stable product performance. This profile can be used in photovoltaic energy storage and also in enclosure design for other mechanical industries.

[0017] Compared with existing technologies, it has the advantages of profile welding which is not easily deformed, lower cost, and can be maintained in the later stage, and overcomes the problems of high cost and inability to modify die casting, and large deformation and difficulty in production of sheet metal welding. Attached Figure Description

[0018] Figure 1 This is a structural diagram of a profile structure;

[0019] Figure 2 This is a right view of a profile structure;

[0020] Figure 3 This is a structural diagram of a box with a profile structure without a front cover;

[0021] Figure 4 This is a rear view of a box-shaped structure with a profiled design.

[0022] Figure 5 It is an assembly diagram of the left and right side panels and the heat sink, which adopt a profile structure.

[0023] Figure 6 This is an assembly diagram of the side panel and back panel using a profile structure;

[0024] Figure 7 It is a bottom view of the assembly of one side panel and the back panel using a profile structure;

[0025] Figure 8 This is another assembly diagram of a side panel and a back panel using a profile structure;

[0026] In the diagram, 101 is the main structure, 102 is the folded edge connector A, 103 is the folded edge connector B, 104 is the protrusion, 105 is the notch, 1 is the left side plate, 2 is the back plate, 3 is the middle welded beam, 4 is the bottom side plate, 5 is the right side plate, 6 is the radiator, and 7 is the top side plate. Detailed Implementation

[0027] To enhance understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and accompanying drawings. These embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0028] Example 1:

[0029] like Figure 1 , Figure 2 As shown, a profile structure is provided, including a main structure 101. The main structure 101 is extruded and has a hollow structure that runs through the length direction (Y direction) of the main structure 101. The main structure 101 has protruding folded edge connectors A102 and B103 on its exterior. The folded edge connector A102 is arranged along the length direction of the main structure 101 and is bent toward one side of the main structure 101. The folded edge connector B103 is arranged along the length direction of the main structure 101 and is bent toward the far end of the main structure 101.

[0030] The main structure 101 has at least three sides, which are connected in sequence to form a hollow structure inside. The figure shows three sides, which have a relatively stable structure. Two of the three sides in the figure are right angles. Equal angles, right angles or obtuse angles can also be selected according to actual needs. Similarly, three or four sides can be selected to form a hollow structure according to actual needs.

[0031] In the three sides of the main structure 101, at least one notch 105 is opened on any side. In the figure, the notch 105 is opened on a non-right angle surface. Two notches of the same size or two notches of different sizes can be used.

[0032] Both the folded edge connector B103 and the folded edge connector A102 fold out from another side of the main structure 101, and the folded edge connector B103 is located at the far end of the folded edge connector A102. As shown in the figure, the folded edge connector B103 and the folded edge connector A102 are formed at both ends of one of the right-angled surfaces of the main structure 101, and the bending direction of the folded edge connector B103 is different from that of the folded edge connector A102. The folded edge connector A102 can be bent at a right angle, and the folded edge connector B103 is provided with at least one protrusion 104 in the bent part.

[0033] Example 2: Assemble with other components using the above-mentioned profile:

[0034] By assembling the above-mentioned profile structure with at least one adjacent structure, the folded edge connector A102 abuts against the connection between the profile structure and an adjacent structure, which can improve the sealing effect; the folded edge connector B103 overlaps parallel to another adjacent structure or is snapped together by the protrusion 104. When snapped together, the protrusion 104 is embedded in the groove on the surface of another adjacent structure, thereby improving the sealing effect while achieving the snapping together.

[0035] Using the above assembly structure, the folded edge connectors B103 and A102 are formed by vertical bending from the same side of the profile structure. Therefore, the two adjacent structures are spatially perpendicular to the side of the two folded edge connectors. For adjacent structures that are not assembled perpendicularly, the bending angle, bending length, or distance from the bend to the end of the two folded edge connectors needs to be adjusted.

[0036] Example 3: Assembling the box:

[0037] like Figures 3 to 6 As shown, a box body using the above-mentioned profile structure and the above-mentioned profile assembly structure is also provided. The box body includes a front cover 8 and a back panel 2. At least one of the other four sides of the box body adopts the profile structure in Embodiment 1. The side adopting the profile structure is connected to the front cover 8 and the back panel 2 using the above-mentioned assembly structure.

[0038] Figure 4 As shown, the left and right side panels of the inverter enclosure both adopt the profile structure of Embodiment 1, and the left and right side panels are mirror-mounted, combined with Figure 5 As shown, the front cover is assembled with the left side panel 1 and / or the right side panel 5 via the folded edge connector A102. The left and right sides adopt this side panel structure. The folded edge connector A102 is turned outward to not only connect with the front cover, but also effectively prevent dust and water at the connection point. The middle part has a hollow design. The cross-section of the hollow structure is triangular, and the side away from the inside of the box has a notch structure, which can increase the airflow speed and achieve better heat dissipation.

[0039] The back panel 2 is assembled with the left side panel 1 and / or the right side panel 5 via the folded edge connector B103. Similarly, the folded edge structure of the folded edge connector B103 improves the sealing of the connection between the back panel 2 and the left side panel 1 and / or the right side panel 5.

[0040] A heat sink 6 is configured on the outside of the back plate 2. The inner surface of the heat sink 6 and the inner surface of the back plate 2 are on the same horizontal plane. The inner surface of the heat sink is provided with vertical and / or horizontal grooves. Figure 5 As shown, the vertical (Y direction) groove is assembled with the left and right side plates which adopt a profile structure. That is, the vertical groove is engaged with the protrusions 104 of the left and right side plates respectively to realize the assembly between the heat sink and the left and right side plates.

[0041] Meanwhile, the connection between the back panel 2 and the left and right side panels using a profile structure is as follows: It can be achieved by... Figure 6 , Figure 7 The direct overlapping method shown here uses a profile structure where the length of the protruding part 104 in the left and right side panels is no greater than the length of the heat sink 6, and the contact surface between the left and right side panels and the back panel is smooth and without the protruding part 104; alternatively, a method can be used. Figure 8As shown, the left and right side panels are connected to the back panel 2 and the heat sink 6 via protrusions 104.

[0042] The groove structure on the surface of the radiator 6 and the back plate 2 is used to lock together with the protrusion 104 on the left and right side plate folded edge connector B103, thereby achieving a dustproof and waterproof sealing effect. This eliminates the need for conventional radiators to apply sealant and add sealing rings. In addition, the bolt connection in the middle can better achieve fixation and a tight connection between the two.

[0043] The upper and lower sides of the front cover of the enclosure are connected to the top side panel 7 and / or the bottom side panel 4 via folded edge connectors A102. The assembly of the top side panel 7 and / or the bottom side panel 4 with the back panel 2 and the radiator 6 is referenced. Figures 5 to 8 The connection method is such that the groove on the surface of the heat sink 6 is horizontal.

[0044] The top side panel 7 and / or the bottom side panel 4 are connected by a folded edge connector B103, and the structure is made of profile material; the top side of the box can be welded to the left and right sides, and similarly, the bottom side panel of the box can also be welded to the left and right sides.

[0045] In this invention, after the front cover is assembled with the left side panel, right side panel, bottom side panel, and top side panel of the inverter housing using the folded edge connector A102, additional fasteners are needed for connection. The following two connection methods can be used: screws can be inserted from the outside of the housing into the housing through the notch to achieve mechanical connection between the front cover and the adjacent side panel; or screws can be used to connect from the inside of the housing into the outside of the housing, simply by riveting nuts at the holes of this profile.

[0046] 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, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A profile structure, characterized in that, It includes a main structure (101), and the main structure (101) has a hollow structure that runs through the length of the main structure (101), through which gas undergoes convective heat exchange. At both ends of the main structure (101) and along the length of the main structure (101), there are respectively a folded edge connector A (102) and a folded edge connector B (103); both the folded edge connector A (102) and the folded edge connector B (103) are provided with a bent portion, which is a bent portion formed by bending to the same side or to different sides; The main structure (101) is formed by extrusion molding. The extruded main structure (101) has at least three sides, and each side is connected in sequence to form a hollow structure inside. Of the at least three sides, at least one notch (105) is provided on any one side; The folded edge connector B (103) and the folded edge connector A (102) fold out from another side of the main structure (101); The folded connector B (103) has at least one protrusion (104) in the bent portion; The folded edge connector B (103) is located at the far end of the folded edge connector A (102).

2. An assembly structure with a profile structure, characterized in that... ， The system includes the profile structure according to claim 1 and at least one adjacent structure assembled with the profile structure. The folded edge connector B (103) overlaps parallel to an adjacent structure and is engaged by the protrusion (104). The protrusion (104) is embedded in a groove on the surface of the adjacent structure to achieve engagement. The folded edge connector A (102) abuts against the connection between the profile structure and another adjacent structure.

3. A box with a profile structure, characterized in that, The enclosure includes at least one side panel, and the side panel is assembled with at least two adjacent side panels using the assembly structure described in claim 2.

4. A box with a profile structure according to claim 3, characterized in that, An external component is installed on the housing. The surface of the external component has a groove, which is used to assemble with at least one side plate with a profile structure adjacent to it.

5. A box with a profile structure, characterized in that, It includes a front cover (8), a back panel (2), and a side panel connected between the front cover (8) and the back panel (2), at least one of the side panels having the profile structure according to claim 1, and being assembled with the front cover (8) and the back panel (2) using the assembly structure according to claim 2.

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