Drawer type energy storage module

Abstract

The utility model discloses a drawer type energy storage module, which comprises a heat dissipation cover, a box body, a panel and a super-capacity bare die, the box body is of an integrally formed thin plate structure and is bent into a U-shaped three-face enclosure structure, the super-capacity bare die is inserted into the box body through the enclosure opening end of the box body, and the panel is arranged on the panel. The panel covers the super-capacity bare mold from the opening end of the enclosure of the box body, so that the box body and the panel surround the four sides of the super-capacity bare mold; the heat dissipation covers are arranged on the two sides, where no enclosure is formed, of the box body, and the heat dissipation covers, the box body and the panel form full surrounding of the super-capacity module. The drawer type energy storage module is simple in overall structure and convenient to install, meanwhile, the box body structure is integrally formed, cost is low, complex processes such as welding are not needed, and the product percent of pass is higher.

Description

Technical Field

[0001] This utility model relates to the field of supercapacity energy storage technology, specifically to a drawer-type energy storage module. Background Technology

[0002] Supercapacitive energy storage module technology is mainly used in rail transit. Common products are supercapacitive battery packs. During rail transit startup, these packs provide a large instantaneous current; during braking, they absorb regenerative energy. This frequent starting and braking of rail transit generates significant heat. To address heat dissipation, the modules typically use an aluminum alloy structure. Furthermore, to ensure cell safety, the entire module must achieve an IP54 or higher protection rating. Existing supercapacitive energy storage modules use an aluminum alloy casing to ensure heat dissipation and sealing. Due to size and weight limitations, the casing is usually constructed by welding multiple thin aluminum alloy sheets together. This manufacturing process is complex, requiring precise tooling and fixtures, and stable and controlled welding processes to ensure welding accuracy and prevent frame deformation. The weld quality must reach IP67 or higher to guarantee a good seal. Moreover, aluminum welding is prone to heat deformation, especially thin aluminum plates. Therefore, the entire supercapacitive energy storage module manufacturing process is complex, with many control points and a high defect rate, increasing production costs. Summary of the Invention

[0003] This invention addresses the problems of complex molding processes and low product qualification rates in existing aluminum alloy supercapacity energy storage modules by proposing a drawer-type energy storage module structure. This structure is not only simple and reliable with low development costs, but also enables the customization of supercapacity energy storage modules.

[0004] A drawer-type energy storage module includes a heat dissipation cover, a housing, a panel, and a super-capacity bare mold. The housing is a thin plate structure formed integrally and bent into a "U"-shaped three-sided enclosure structure. The super-capacity bare mold is inserted into the housing through the enclosure opening end of the housing. The panel covers the super-capacity bare mold from the enclosure opening end of the housing, forming a four-sided enclosure of the super-capacity bare mold by the housing and the panel.

[0005] The heat dissipation cover is located on both sides of the housing where no enclosure is formed, and the heat dissipation cover, the housing, and the panel form a complete enclosure of the super-capacity bare mold.

[0006] As a further improvement of this utility model, it also includes a sealing gasket and a thermal pad, wherein the sealing gasket and the thermal pad are disposed between the heat dissipation cover and the super-capacity bare mold, and are arranged in the order of sealing gasket, thermal pad and heat dissipation cover.

[0007] As a further improvement of this utility model, the supercapacitor bare mold includes a supercapacitor cell, a bracket, a busbar, and a terminal block. The bracket surrounds and fixes the supercapacitor cell and makes the electrodes of the supercapacitor cell face the direction of the heat sink cover. The busbar and the terminal block cover the side where the electrodes of the supercapacitor cell are located, and the terminals on the terminal block extend towards the panel mounting direction.

[0008] As a further improvement of this utility model, each enclosure surface of the box body has an inwardly bent edge corresponding to the edge of the heat dissipation box cover;

[0009] The bracket is provided with a groove structure at the position corresponding to the folded edge;

[0010] When the super-capacity bare mold is inserted into the box body, the folded edge is embedded in the sliding groove structure.

[0011] As a further improvement of this utility model, the bracket includes a first bracket and a second bracket, wherein the first bracket and the second bracket are respectively fastened and fixed to the supercapacitive battery cell from the direction where the heat dissipation cover is located;

[0012] Both the first bracket and the second bracket are provided with cell fixing holes and pins. The pin of the first bracket is provided with a protrusion, and the pin of the second bracket is provided with a concave hole corresponding to the protrusion. During installation, the supercapacitive cell is fixed in the cell fixing holes of the first bracket and the second bracket, and the protrusion is inserted into the concave hole to fix the first bracket and the second bracket.

[0013] As a further improvement of this utility model, a press-fit nut is provided on the folded edge, and a rivet hole corresponding to the press-fit nut is provided on the heat dissipation cover. The heat dissipation cover is fixed to the box body by passing the rivet through the rivet hole and connecting it with the press-fit nut.

[0014] As a further improvement of this utility model, the panel includes a support plate, an equalization module, an inner ear, and a mounting hole for the terminal to extend out.

[0015] The support plate and the box are fixedly connected by a 90° folded inner ear structure, forming a four-sided enclosure of the super-capacity bare mold;

[0016] The equalization module is located on the other side of the panel relative to the super-capacitive bare mold;

[0017] The terminals on the terminal block extend out of the panel through the mounting holes.

[0018] As a further improvement of this utility model, the material of the box is aluminum alloy, and the entire box is an aluminum alloy sheet structure.

[0019] As a further improvement of this utility model, the bracket is a plastic bracket.

[0020] As a further improvement of this utility model, the folded edge is a 90° folded edge.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows: the super-capacity bare mold and the box body are installed in a pull-out manner, which is simple to install. The box body can be integrally formed during production without additional welding, which not only ensures a very high yield rate, but also ensures that the entire module has good heat dissipation performance. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is an overall structural diagram of the drawer-type energy storage module of this utility model;

[0024] Figure 2 This is a schematic diagram of the installation of the supercapacitive bare mold of the drawer-type energy storage module of this utility model;

[0025] Figure 3 , 4 This is a schematic diagram showing the completed installation of the supercapacity bare mold of the drawer-type energy storage module of this utility model;

[0026] Figure 5 This is a schematic diagram of the panel installation of the drawer-type energy storage module of this utility model;

[0027] Figure 6 This is a schematic diagram of the installation of the heat dissipation cover of the drawer-type energy storage module of this utility model;

[0028] Figure 7 This is an overall structural diagram of the drawer-type energy storage module of this utility model;

[0029] Figure 8 This is a structural diagram of the supercapacitive bare mold of the drawer-type energy storage module of this utility model;

[0030] Figure 9 This is a structural diagram of the first support of the drawer-type energy storage module of this utility model;

[0031] Figure 10 This is a structural diagram of the panel of the drawer-type energy storage module of this utility model. Detailed Implementation

[0032] The technical solutions of various embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0034] A drawer-type energy storage module includes a heat dissipation cover 1, a housing 2, a panel 3, and a super-capacity bare mold 4. The housing 2 is a one-piece molded aluminum alloy sheet, and its overall structure is a U-shaped three-sided enclosure structure. The super-capacity bare mold 4 is inserted into the housing 2 through the enclosure opening end. The panel 3 covers the super-capacity bare mold 4 from the enclosure opening end of the housing 2, forming a four-sided enclosure of the super-capacity bare mold 4 by the housing 2 and the panel 3. The heat dissipation cover 1 is set on the two sides of the housing 2 where the enclosure is not formed, forming a complete enclosure of the super-capacity bare mold 4 with the housing 2 and the panel 3.

[0035] In this embodiment, in order to improve heat dissipation performance, a sealing gasket 6 and a thermal conductive pad 5 are added between the heat dissipation cover 1 and the super-capacity bare mold 4. During installation, the sealing gasket 6, the thermal conductive pad 5, and the heat dissipation cover 1 are set in sequence.

[0036] The supercapacitive bare mold 4 includes a supercapacitive battery cell 41, a bracket 42, a busbar 43, and a terminal block 44. The bracket 42 surrounds and fixes the supercapacitive battery cell 41 with its electrodes facing the direction of the heat sink 1. The busbar 43 and the terminal block 44 cover the electrode side of the supercapacitive battery cell 41, and the terminals on the terminal block 44 extend towards the mounting direction of the panel 3. In this embodiment, the bracket 42 is a plastic bracket 42, including a first bracket 421 and a second bracket 422. The first bracket 421 and the second bracket 422 respectively fasten and fix the supercapacitive battery cell 41 from the direction of the heat sink 1.

[0037] Both the first bracket 421 and the second bracket 422 are provided with cell fixing holes 412 and pins 413. The pins 413 of the first bracket 421 are provided with protrusions, and the pins 413 of the second bracket 422 are provided with concave holes corresponding to the protrusions. During installation, the supercapacitive cell 41 is fixed in the cell fixing holes 412 of the first bracket 421 and the second bracket 422. The protrusions are inserted into the concave holes to make the first bracket 421 and the second bracket 422 form a snap-fit ​​fixation.

[0038] In this embodiment, in order to ensure that the installation of the super-capacity bare mold 4 is more stable, each enclosure surface of the box 2 is provided with an inwardly bent 90° folded edge 7 at the edge corresponding to the heat sink cover. According to the structure of the box 2, there are six folded edges 7. The bracket 42 of the super-capacity bare mold 4 is provided with a sliding groove structure 411 at the position corresponding to the folded edge 7. When the super-capacity bare mold 4 is inserted into the box 2, the folded edge 7 is embedded in the sliding groove structure 411 and slides as the super-capacity bare mold 4 is inserted.

[0039] In this embodiment, four press-fit nuts 8 are provided on each folded edge 7, and four rivet holes 9 corresponding to the press-fit nuts 8 are provided on the heat dissipation cover 1. The heat dissipation cover 1 and the housing 2 are fixed by passing the rivets through the rivet holes 9 and connecting them with the press-fit nuts 8.

[0040] In this embodiment, the panel 3 includes a support plate 31, an equalization module 34, a 90° folded inner ear 35, and a mounting hole 32 for the terminals to extend out. After the overcapacity bare mold 4 is inserted into the housing 2, the panel 3 is placed over the opening of the enclosure of the housing 2. The panel 3 and the housing 2 are fixed from the inside by the inner ear 35 structure. The support plate 31 and the housing 2 form a four-sided enclosure of the overcapacity bare mold 4. The equalization module 34 is located on the other side of the panel 3 relative to the overcapacity bare mold 4. The terminals on the terminal block 44 extend out of the panel 3 through the mounting hole 32.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the technical solutions of the embodiments of this utility model.

Claims

1. A drawer type energy storage module, comprising a heat dissipation cover, a box, a panel and a super-capacitor bare module, characterized in that: the box is a thin plate structure formed integrally and is bent into a "N" type three-sided enclosure structure, the super-capacitor bare module is inserted into the box through the enclosure open end of the box, and the panel covers the super-capacitor bare module from the enclosure open end of the box to form four-sided enclosure of the super-capacitor bare module by the box and the panel; the heat dissipation cover is arranged on the two sides of the box which are not formed with the enclosure, and the heat dissipation cover, the box and the panel form full enclosure of the super-capacitor bare module.

2. The drawer type energy storage module according to claim 1, characterized in that: further comprising a sealing gasket and a heat conduction pad, the sealing gasket and the heat conduction pad are arranged between the heat dissipation cover and the super-capacitor bare module in the order of sealing gasket, heat conduction pad and heat dissipation cover.

3. The drawer type energy storage module according to claim 1 or 2, characterized in that: the super-capacitor bare module comprises a super-capacitor, a bracket, a busbar and a terminal row, the bracket surrounds and fixes the super-capacitor and makes the electrodes of the super-capacitor face the direction of the heat dissipation cover, the busbar and the terminal row are arranged on the side where the electrodes of the super-capacitor are located, and the terminals on the terminal row protrude towards the installation direction of the panel.

4. The drawer type energy storage module according to claim 3, characterized in that: each enclosure side of the box is provided with a folded edge bent inward at the edge corresponding to the heat dissipation cover; the bracket is provided with a sliding groove structure at the position corresponding to the folded edge; when the super-capacitor bare module is inserted into the box, the folded edge is embedded in the sliding groove structure.

5. The drawer type energy storage module according to claim 3 or 4, characterized in that: the bracket comprises a first bracket and a second bracket, the first bracket and the second bracket are respectively buckled to fix the super-capacitor from the direction of the heat dissipation cover; the first bracket and the second bracket are both provided with a cell fixing hole and a latch post, the latch post of the first bracket is provided with a protruding post, the latch post of the second bracket is provided with a recess hole corresponding to the protruding post, and during installation, the super-capacitor is fixed in the cell fixing hole of the first bracket and the second bracket, and the protruding post is inserted into the recess hole to fix the first bracket and the second bracket. the folded edge is provided with a press-in nut, the heat dissipation cover is provided with a rivet hole corresponding to the press-in nut, and the heat dissipation cover and the box are fixed by connecting the rivet passing through the rivet hole and the press-in nut.

7. The drawer type energy storage module according to claim 3, characterized in that: the panel comprises a support plate, a balancing module, an inner ear and a mounting hole for the terminals to protrude; the support plate and the box are fixedly connected through the 90° folded inner ear structure to form four-sided enclosure of the super-capacitor bare module; the balancing module is arranged on the other side of the panel relative to the super-capacitor bare module; the terminals on the terminal row protrude out of the panel through the mounting hole.

8. The drawer type energy storage module according to claim 1, characterized in that:

6. The drawer-type energy storage module of claim 4, wherein: ​ ​ ​ ​ ​ ​ ​ The material of the box is aluminum alloy, and the whole box is an integrally formed aluminum alloy thin plate structure.

9. The drawer-type energy storage module of claim 3, wherein: The support is a plastic support.

10. The drawer-type energy storage module of claim 4, wherein: The folded edge is a 90-degree folded edge.

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