An electrically isolated energy storage module structure

Abstract

The utility model belongs to the technical field of energy storage module, concretely relates to an electrical separation's energy storage module structure, including casing, and through the support fixed in the casing electricity of a plurality of super capacitor monomer, the support includes the lower frame body for sealing connection super capacitor monomer pressure relief end, the lower frame body is formed with the sealed collection cavity that communicates with super capacitor monomer pressure relief end, and the flow guide nozzle that is connected on lower frame body and sealed collection cavity intercommunication, to when super capacitor monomer pressure relief end opens, the electrolyte and gas that it sprays out are safely guided out from flow guide nozzle. The utility model through the setting of sealed collection cavity and flow guide nozzle, make when sealing connection on the lower frame body super capacitor monomer failure and cause its pressure relief end to open, can through sealed collection cavity and flow guide nozzle the electrolyte and gas that it sprays out safely directional guide, to prevent the occurrence of greater fire risk.

Description

Technical Field

[0001] This utility model belongs to the field of energy storage module technology, and specifically relates to an electrically isolated energy storage module structure. Background Technology

[0002] Current supercapacitor energy storage modules typically encounter problems at the end of their lifespan or under extreme conditions such as overheating and overcharging. The vaporization of the electrolyte inside the cell increases the internal pressure. When the internal pressure reaches a certain critical value, the cell's explosion-proof valve will burst, and the electrolyte will gush out, causing a short circuit. Alternatively, contact with electrical sparks generated by high and low voltage circuits may pose a fire risk. To control the potential hazards caused by fire, current technologies have equipped the entire energy storage system with a large number of fire-fighting devices, which undoubtedly generate significant production and operating costs.

[0003] In view of this, the present invention provides an electrically isolated energy storage module structure to solve the above-mentioned risks. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: an electrically isolated energy storage module structure, including a housing and a plurality of supercapacitor cells electrically connected within the housing by a bracket. The bracket includes a lower frame for sealingly connecting the pressure relief terminals of the supercapacitor cells. A sealed collection cavity communicating with the pressure relief terminals of the supercapacitor cells is formed on the lower frame, and a guide nozzle connected to the lower frame and communicating with the sealed collection cavity is provided to safely discharge the electrolyte and gas ejected from the supercapacitor cells through the guide nozzle when the pressure relief terminals of the supercapacitor cells are opened.

[0005] Preferably, the top surface of the lower frame is provided with a supercapacitor cell slot that is compatible with the pressure relief end of the supercapacitor cell, and the pressure relief end of the supercapacitor cell is sealed and inserted into the supercapacitor cell slot.

[0006] Preferably, the interior of the supercapacitor cell slot is deepened to form a through hole that connects to the sealed collection cavity.

[0007] Preferably, the supercapacitor cell slot includes a first slot adapted to the pressure relief end of the supercapacitor cell, and a second slot formed by deepening the first slot.

[0008] Preferably, the through hole is formed within the second slot.

[0009] Preferably, the radial dimension of the second slot is smaller than that of the first slot, so as to form a boss at the junction of the two for supporting the pressure relief end of the supercapacitor cell.

[0010] Preferably, the bottom surface of the lower frame is provided with a groove, and the shell seals the opening of the groove and together with the groove defines a sealed collection cavity.

[0011] Preferably, the support also includes an upper frame for connecting the terminal of the supercapacitor cell.

[0012] Preferably, the upper frame and the lower frame are respectively provided with corresponding upper locking holes and lower locking holes on their opposite surfaces. The upper locking holes and the lower locking holes can be connected by fasteners to clamp the supercapacitor cells between the upper frame and the lower frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention, through the design of a sealed collection chamber and a guide nozzle, allows for the safe and directional discharge of electrolyte and gas that gushes out when a single supercapacitor cell connected to the lower frame malfunctions and its pressure relief terminal opens, thereby preventing a significant fire risk. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a structural schematic diagram of the present invention from another perspective;

[0018] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the lower frame of the present invention, which is sealed and connected to the pressure relief end of a supercapacitor cell.

[0020] Figure 5 This is a three-dimensional structural diagram of the lower frame of this utility model;

[0021] Figure 6 This is a schematic diagram of the cross-sectional structure of the supercapacitor single-cell slot of this utility model;

[0022] Figure 7 This is a schematic cross-sectional view of the lower frame structure of this utility model.

[0023] In the diagram: 1. Housing; 11. Lower housing; 12. Upper housing; 13. Sealing shell; 14. Terminal block; 2. Bracket; 21. Lower frame; 211. Supercapacitor cell slot; 2111. First slot; 2112. Second slot; 212. Through hole; 213. Sealed collection chamber; 214. Drain nozzle; 215. Sealing strip; 216. Lower locking hole; 22. Upper frame; 221. Upper locking hole; 3. Supercapacitor cell. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1:

[0026] This utility model relates to an electrically isolated energy storage module structure, such as... Figures 1-7 As shown, it includes a housing 1 and several supercapacitor cells 3 that are electrically connected and fixed inside the housing 1 by a bracket 2.

[0027] The housing 1 includes a lower housing 11 and an upper housing 12 detachably connected to the lower housing 11. After the lower housing 11 is connected to the upper housing 12, an opening is formed on its periphery for the support 2 and the supercapacitor cell 3 to enter and exit. The opening is sealed by a detachably connected cover 13. The cover 13 is also provided with a terminal 14 electrically connected to the supercapacitor cell 3 to facilitate the connection and conduction of the circuit.

[0028] The supercapacitor cell 3 is a common cylindrical capacitor in the prior art, with its top being the terminal and its bottom being the pressure relief terminal. The support 2 includes an upper frame 22 and a lower frame 21 that can be connected to the upper frame 22 via fasteners. Specifically, the upper frame 22 and the lower frame 21 have corresponding upper locking holes 221 and lower locking holes 216 on their opposite surfaces, and the upper locking holes 221 and lower locking holes 216 can be connected by fasteners such as bolts. Preferably, the upper locking hole 221 is a through insertion hole, and the lower locking hole 216 is a threaded hole. After the bolt is inserted into the insertion hole, it connects to the threaded hole to clamp the supercapacitor cell 3 between the upper frame 22 and the lower frame 21.

[0029] The upper frame 22 has an insertion port adapted to the terminal end of the supercapacitor cell 3, while the lower frame 21 has a supercapacitor cell slot 211 adapted to the pressure relief end of the supercapacitor cell 3. During installation, the pressure relief end of the supercapacitor cell 3 can be sealed and inserted into the supercapacitor cell slot 211 using sealant or other sealing designs, while its top is inserted into the insertion port on the upper frame 22, so that the supercapacitor cell 3 is clamped and fixed through the connection between the upper frame 22 and the lower frame 21.

[0030] It should be noted that the interior of the housing 1 is adapted to the entire bracket 2, that is: when the bracket 2 clamps the supercapacitor cell 3 inside the housing 1, the bracket 2 remains fixed.

[0031] Furthermore, such as Figures 5-7 As shown, a groove is formed on the bottom surface of the lower frame 21. When the support 2 is placed inside the housing 1, the lower frame 21 and the lower housing 11 fit tightly together to seal the opening of the groove, forming a sealed collection cavity 213. Simultaneously, a through hole 212 is deepened within the supercapacitor cell slot 211, connecting to the interior of the sealed collection cavity 213. A guide nozzle 214 is also connected to the surface of the lower frame 21, with one end connected to the sealed collection cavity 213 and the other end extending out of the housing 1 to connect to the outside or an external pipeline. In use, when the supercapacitor cell 3 malfunctions and its pressure relief terminal opens, the electrolyte and vaporized gas inside will enter the sealed collection cavity 213 through the through hole 212 and eventually be ejected from the guide nozzle 214 into a predetermined safe position, effectively preventing fires and other safety accidents.

[0032] In addition, to further improve the tight sealing between the lower frame 21 and the lower housing 11, a sealing strip 215 can be placed inside the groove, such as... Figure 7 As shown, the sealing strip 215 surrounds the joint between the two to form a good seal.

[0033] Example 2:

[0034] When the supercapacitor cell 3 is depressurized, its depressurization end casing will split axially due to pressure. Using only the through-hole 212 may restrict the splitting of the casing at the depressurization end, resulting in incomplete depressurization. Therefore, this embodiment, based on the first embodiment described above, provides space for splitting the casing at the depressurization end of the supercapacitor cell 3.

[0035] Specifically, the supercapacitor cell slot 211 is designed as a two-layer structure, including an upper first slot 2111 that is adapted to the pressure relief end of the supercapacitor cell 3, and a second slot 2112 that is deepened inside the first slot 2111. The through hole 212 is deepened inside the second slot 2112 to form a connecting sealed collection cavity 213. The second slot 2112 provides good space for breaking and separating the housing of the pressure relief end of the supercapacitor cell 3.

[0036] Better, such as Figure 7 As shown, the radial dimension of the second slot 2112 is smaller than that of the first slot 2111, forming a boss at the junction of the two. This boss not only provides the supercapacitor cell 3 with ample space for pressure relief and shell breaking, but also effectively supports the supercapacitor cell 3.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An electrically isolated energy storage module structure, comprising a housing (1) and a plurality of supercapacitor cells (3) electrically connected and fixed within the housing (1) by a bracket (2), characterized in that: The support (2) includes a lower frame (21) for sealing the pressure relief end of the supercapacitor cell (3), and the lower frame (21) has a sealed collection cavity (213) communicating with the pressure relief end of the supercapacitor cell (3). A guide nozzle (214) connected to the lower frame (21) and communicating with the sealed collection chamber (213) is used to safely discharge the electrolyte and gas ejected from the supercapacitor cell (3) when the pressure relief end of the supercapacitor cell (3) is opened.

2. The electrically isolated energy storage module structure according to claim 1, characterized in that: The top surface of the lower frame (21) is provided with a supercapacitor cell slot (211) that is compatible with the pressure relief end of the supercapacitor cell (3), and the pressure relief end of the supercapacitor cell (3) is sealed and inserted into the supercapacitor cell slot (211).

3. The electrically isolated energy storage module structure according to claim 2, characterized in that: The interior of the supercapacitor cell slot (211) is deepened to form a through hole (212) that connects to the sealed collection cavity (213).

4. The electrically isolated energy storage module structure according to claim 3, characterized in that: The supercapacitor cell slot (211) includes a first slot (2111) adapted to the pressure relief end of the supercapacitor cell (3), and a second slot (2112) formed by deepening inside the first slot (2111).

5. The electrically isolated energy storage module structure according to claim 4, characterized in that: The through hole (212) is formed within the second slot (2112).

6. The electrically isolated energy storage module structure according to claim 4, characterized in that: The radial dimension of the second slot (2112) is smaller than that of the first slot (2111) to form a boss at the junction of the two for supporting the pressure relief end of the supercapacitor cell (3).

7. The electrically isolated energy storage module structure according to any one of claims 1-6, characterized in that: The bottom surface of the lower frame (21) is provided with a groove, and the shell (1) seals the opening of the groove and together with the groove defines the sealed collection cavity (213).

8. The electrically isolated energy storage module structure according to claim 7, characterized in that: The support (2) also includes an upper frame (22) for connecting the terminal of the supercapacitor cell (3).

9. The electrically isolated energy storage module structure according to claim 8, characterized in that: The upper frame (22) and the lower frame (21) are respectively provided with corresponding upper locking holes (221) and lower locking holes (216) on their opposite surfaces. The upper locking holes (221) and the lower locking holes (216) can be connected by fasteners to clamp the supercapacitor cell (3) between the upper frame (22) and the lower frame (21).

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