Sealed energy storage battery

Abstract

The utility model relates to a sealed energy storage battery, including a shell composed of a front shell and a rear shell, wherein the front shell is fixed to the rear shell by a plurality of bolts, a screw hole matched with the bolts is arranged on the side wall of the rear shell, a through hole convenient for the bolts to pass through is arranged on the side peripheral wall of the front shell, and an annular closed groove is arranged at the connection between the side wall of the front shell and the rear shell, the groove is close to the inside of the front shell and bypasses the position where each through hole is located, and a corresponding annular sealing ring is arranged in the groove. A data line connector and a power line connector are arranged on the side of the rear shell respectively, a data line sealing ring is arranged between the data line connector and the side wall of the rear shell, and a power line sealing ring is arranged between the power line connector and the side wall of the rear shell. The utility model arranges the annular sealing ring, the data line sealing ring and the power line sealing ring, so that the energy storage battery not only has good sealing performance, but also can maintain good sealing performance after multiple disassembly and assembly, thereby meeting the use requirements of sealing.

Description

Technical Field

[0001] The utility model belongs to the technical field of energy storage batteries, and particularly relates to a sealed energy storage battery. Background Art

[0002] Energy storage batteries generally need to be sealed. According to the needs of use, energy storage batteries also need to be disassembled and assembled. However, multiple disassembly and assembly will reduce the sealing performance of energy storage batteries. In addition, different energy storage batteries require different sealing structures. Therefore, how to effectively improve the sealing performance of energy storage batteries is an urgent problem to be solved. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a sealed energy storage battery, which can still maintain good sealing performance after multiple disassembly and assembly, meet the sealing use requirements, and reduce the maintenance cost of the energy storage battery.

[0004] The utility model is implemented as follows: a sealed energy storage battery is provided, comprising a shell composed of a front shell and a rear shell, the front shell being fixed together with the rear shell by a plurality of bolts, the bolts being distributed along the surrounding side walls of the front shell and the rear shell, screw holes cooperating with the bolts being arranged on the side wall of the rear shell, and correspondingly, through holes convenient for the bolts to pass through are arranged on the side peripheral wall of the front shell, an annular closed groove is arranged at the connection between the side wall of the front shell and the rear shell, the groove is close to the interior of the front shell and bypasses the position where each through hole is located, and a corresponding annular sealing ring is arranged in the groove; a data line port and a power line port are respectively arranged on the side of the rear shell, a data line connector is arranged on the data line port, a power line connector is arranged on the power line port, a data line sealing ring is arranged between the data line connector and the side wall of the rear shell, and a power line sealing ring is arranged between the power line connector and the side wall of the rear shell.

[0005] Furthermore, the rear shell is fixed to the base by multiple base bolts, a bottom fixing plate is arranged inside the rear shell, a base nut which cooperates with the base bolt thread is arranged on the bottom fixing plate, a base hole which is convenient for the base bolt to pass through is arranged on the base, a rear shell bottom hole which is convenient for the base bolt to pass through is correspondingly arranged on the bottom wall of the rear shell, a first elastic gasket is arranged between the head of the base bolt and the base, a first bolt sealing assembly is arranged between the base bolt and the base nut, and the connecting portion between the base bolt and the base nut is sealed by the first bolt sealing assembly.

[0006] Further, the first bolt sealing assembly includes a first sealing gasket, a first sealing ring, an O-ring and a base bolt sleeve, the first sealing gasket is arranged between the head of the base bolt and the base, the first elastic gasket is located in the center hole of the first sealing gasket, the base bolt sleeve is arranged in the bottom hole of the rear shell, an axial groove is arranged at the axial position of the base bolt sleeve, a sealing ring installation groove is arranged at the outer periphery of the base bolt sleeve, the first sealing ring is arranged in the axial groove, the O-ring is arranged in the sealing ring installation groove, an axial seal is formed between the first sealing ring and the base bolt, a radial seal is formed between the O-ring and the inner wall of the bottom hole of the rear shell, and the first sealing gasket, the first elastic gasket, the first sealing ring and the base bolt sleeve are respectively sleeved on the base bolt.

[0007] Furthermore, a mounting connection frame is arranged on the rear side wall of the rear shell, a rear fixing plate is arranged inside the rear shell, the mounting connection frame is fixed together with the rear fixing plate by a plurality of connection frame bolts, a connection frame nut which is threadably matched with the connection frame bolt is arranged on the rear fixing plate, a connection frame hole which is convenient for the connection frame bolt to pass through is arranged on the mounting connection frame, a rear shell connection hole which is convenient for the connection frame bolt to pass through is correspondingly arranged on the rear side wall of the rear shell, a second elastic gasket is arranged between the head of the connection frame bolt and the mounting connection frame, a second bolt sealing assembly is arranged between the connection frame bolt and the connection frame nut of the rear fixing plate, and the connection portion between the connection frame bolt and the connection frame nut is sealed by the second bolt sealing assembly.

[0008] Furthermore, the second bolt sealing assembly includes a second sealing gasket, a second sealing ring and a connecting frame bolt sleeve, the second sealing gasket is arranged between the head of the connecting frame bolt and the mounting connecting frame, the second elastic gasket is located in the center hole of the second sealing gasket, the connecting frame bolt sleeve is arranged in the connecting hole of the rear shell, the second sealing ring is sleeved on the outside of the connecting frame bolt sleeve, and a retaining ring is arranged at the rear end of the second sealing ring. The front end of the second sealing ring is the first sealing surface to seal between the mounting connecting frame and the rear shell, and the side surface of the retaining ring close to the front end of the second sealing ring is the second sealing surface to seal the inner side surface of the rear shell, and the second sealing gasket, the second elastic gasket, the second sealing ring and the connecting frame bolt sleeve are respectively sleeved on the connecting frame bolt.

[0009] Compared with the prior art, the sealed energy storage battery of the utility model comprises a shell composed of a front shell and a rear shell, wherein the front shell is fixed to the rear shell by a plurality of bolts, and the bolts are distributed along the side walls of the front shell and the rear shell. Accordingly, screw holes matching with the bolts are arranged on the side walls of the rear shell, through holes convenient for the bolts to pass through are arranged on the side walls of the front shell, and an annular closed groove is arranged at the connection between the side walls of the front shell and the rear shell, the groove is close to the interior of the front shell and bypasses the location of each through hole, and a corresponding annular sealing ring is arranged in the groove. A data line port and a power line port are arranged on the side of the rear shell, respectively, a data line connector is arranged on the data line port, a power line connector is arranged on the power line port, a data line sealing ring is arranged between the data line connector and the side wall of the rear shell, and a power line sealing ring is arranged between the power line connector and the side wall of the rear shell. The utility model arranges an annular sealing ring at the connection between the front shell and the rear shell, and respectively arranges a data line sealing ring and a power line sealing ring at the position communicating with the inner cavity of the shell, so that the energy storage battery not only has good sealing performance, but also can maintain good sealing performance after multiple disassembly and assembly, thus meeting the use requirements of sealing and reducing the maintenance cost of the energy storage battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional schematic diagram of a preferred embodiment of the energy storage battery of the utility model;

[0011] Figure 2 for Figure 1 A three-dimensional schematic diagram from another angle;

[0012] Figure 3 for Figure 2 A three-dimensional schematic diagram from another angle;

[0013] Figure 4 for Figure 1 A three-dimensional schematic diagram of the middle front shell;

[0014] Figure 5 for Figure 1 A three-dimensional schematic diagram with the front shell removed;

[0015] Figure 6 for Figure 2 Cross-section of the middle MM;

[0016] Figure 7 for Figure 3 Cross-section of the middle NN;

[0017] Figure 8 for Figure 5 The enlarged schematic diagram of the middle part I;

[0018] Fig. 9 for Figure 6 Middle II is an enlarged schematic diagram;

[0019] Fig.10 for Figure 7 Middle III is an enlarged schematic diagram;

[0020] Fig.11 for Fig. 9 A three-dimensional schematic diagram of the middle base bolt sleeve;

[0021] Fig.12 for Fig.10 Schematic diagram of the second sealing ring. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] Please also refer to Figures 1 to 6 As shown, a preferred embodiment of the sealed energy storage battery of the utility model comprises a housing A composed of a front housing 1 and a rear housing 2. A plurality of rechargeable battery packs B are arranged in the housing. The front housing 1 is fixed to the rear housing 2 by a plurality of bolts 3. Figure 6 As shown in FIG. 1 , 16 bolts 3 are provided to fix the front shell 1 and the rear shell 2 together.

[0024] The bolts 3 are distributed along the side walls of the front shell 1 and the rear shell 2. Screw holes 21 matching the bolts 3 are provided on the side walls of the rear shell 2, and correspondingly, through holes 14 are provided on the side walls of the front shell 1 for the bolts 3 to pass through. An annular closed groove 11 is provided at the connection between the side walls of the front shell 1 and the rear shell 2, and the groove 11 is close to the inside of the front shell 1 and bypasses the location of each through hole 14. A corresponding annular sealing ring 4 is provided in the groove 11.

[0025] Please refer to Figure 5 and Figure 8 As shown, a data line port (not shown in the figure) and a power line port (not shown in the figure) are respectively arranged on the side of the rear shell 2, a data line connector 22 is arranged on the data line port, a power line connector 23 is arranged on the power line port, a data line sealing ring 5 is arranged between the data line connector 22 and the side wall of the rear shell 2, and a power line sealing ring (not shown in the figure) is arranged between the power line connector and the side wall of the rear shell 2.

[0026] Please refer to Figure 2 , Figure 6 , Fig. 9 and Fig.11 As shown, the rear housing 2 is fixed to the base 12 by a plurality of base bolts 10. Figure 2As shown in the figure, four base bolts 10 are provided to fix the base 12 to the bottom surface of the rear shell 2. A bottom fixing plate 24 is provided inside the rear shell 2, and a base nut 25 threadedly matched with the base bolt 10 is provided on the bottom fixing plate 24. A base hole (not shown in the figure) is provided on the base 12 for facilitating the base bolt 10 to pass through, and a rear shell bottom hole (not shown in the figure) is correspondingly provided on the bottom wall of the rear shell 2 for facilitating the base bolt 10 to pass through. A first elastic gasket 15 is provided between the head of the base bolt 10 and the base 12, and a first bolt sealing assembly 6 is provided between the base bolt 10 and the base nut 25 of the bottom fixing plate 24, and the connection portion between the base bolt 10 and the base nut 25 is sealed by the first bolt sealing assembly 6.

[0027] The first bolt sealing assembly 6 includes a first sealing gasket 61, a first sealing ring 62, an O-type sealing ring 63 and a base bolt sleeve 64. The first sealing gasket 61 is arranged between the head of the base bolt 10 and the base 12, the first elastic gasket 15 is located in the center hole of the first sealing gasket 61, and the base bolt sleeve 64 is arranged in the bottom hole of the rear shell. An axial groove 65 is arranged at the axial part of the base bolt sleeve 64, a sealing ring installation groove 66 is arranged at the outer periphery of the base bolt sleeve 64, the first sealing ring 62 is arranged in the axial groove 65, and the O-type sealing ring 63 is arranged in the sealing ring installation groove 66. An axial seal is formed between the first sealing ring 62 and the base bolt 10, and a radial seal is formed between the O-type sealing ring 63 and the inner wall of the bottom hole 26 of the rear shell. The first sealing gasket 61, the first elastic gasket 15, the first sealing ring 62 and the base bolt sleeve 64 are respectively sleeved on the base bolt 10.

[0028] Please refer to Figure 3 , Figure 7 , Fig.10 and Fig.12 As shown, a mounting connection frame 7 is provided on the rear side wall of the rear shell 2. A rear fixing plate 27 is provided inside the rear shell 2, and the mounting connection frame 7 is fixed to the rear fixing plate 27 by a plurality of connection frame bolts 8. Figure 3 As shown in the figure, two mounting connecting frames 7 are arranged on the rear side wall of the rear shell 2, and each mounting connecting frame 7 is fixed to the rear of the rear shell 2 by two connecting frame bolts 8. A connecting frame nut 26 threadedly matched with the connecting frame bolt 8 is arranged on the rear fixing plate 27, and a connecting frame hole (not shown in the figure) is arranged on the mounting connecting frame 7 for facilitating the connection frame bolt 8 to pass through. A rear shell connecting hole (not shown in the figure) is correspondingly arranged on the rear side wall of the rear shell 2 for facilitating the connection frame bolt 8 to pass through. A second elastic gasket 13 is arranged between the head of the connection frame bolt 8 and the mounting connecting frame 7, and a second bolt sealing assembly 9 is arranged between the connection frame bolt 8 and the connecting frame nut 26 of the rear fixing plate 27, and the connection portion between the connection frame bolt 8 and the connection frame nut 26 is sealed by the second bolt sealing assembly 9.

[0029] The second bolt sealing assembly 9 includes a second sealing gasket 91, a second sealing ring 92 and a connecting frame bolt sleeve 93. The second sealing gasket 91 is arranged between the head of the connecting frame bolt 8 and the mounting connecting frame 7, the second elastic gasket 13 is located in the center hole of the second sealing gasket 91, and the connecting frame bolt sleeve 93 is arranged in the rear shell connection hole. The second sealing ring 92 is sleeved on the outside of the connecting frame bolt sleeve 93. A retaining ring 94 is arranged at the rear end of the second sealing ring 92, the front end of the second sealing ring 92 is a first sealing surface 95 to seal between the mounting connecting frame 7 and the rear shell 2, and the side of the retaining ring 94 close to the front end of the second sealing ring 92 is a second sealing surface 96 to seal the inner side of the rear shell 2. The second sealing gasket 91, the second elastic gasket 13, the second sealing ring 92 and the connecting frame bolt sleeve 93 are sleeved on the connecting frame bolt 8 respectively.

[0030] The utility model respectively arranges a first bolt sealing assembly 6 and a second bolt sealing assembly 9 at the bolt mounting holes penetrating the rear shell, so that the energy storage battery not only has good sealing performance, but also can maintain good sealing performance after multiple disassembly and assembly, thereby meeting the sealing use requirements and reducing the maintenance cost of the energy storage battery.

[0031] 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 and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealed energy storage battery, comprising a housing consisting of a front housing and a rear housing, wherein the front housing is fixed to the rear housing by a plurality of bolts, wherein: The bolts are distributed along the surrounding side walls of the front shell and the rear shell, and screw holes matching with the bolts are arranged on the side wall of the rear shell. Correspondingly, through holes for the bolts to pass through are arranged on the side peripheral wall of the front shell, and an annular closed groove is arranged at the connection between the side wall of the front shell and the rear shell. The groove is close to the interior of the front shell and bypasses the location of each through hole, and a corresponding annular sealing ring is arranged in the groove; a data line port and a power line port are arranged on the side of the rear shell respectively, a data line connector is arranged on the data line port, a power line connector is arranged on the power line port, a data line sealing ring is arranged between the data line connector and the side wall of the rear shell, and a power line sealing ring is arranged between the power line connector and the side wall of the rear shell.

2. The sealed energy storage battery according to claim 1, characterized in that: The rear shell is fixed to the base by multiple base bolts, a bottom fixing plate is arranged inside the rear shell, a base nut matched with the base bolt thread is arranged on the bottom fixing plate, a base hole for facilitating the base bolt to pass through is arranged on the base, a rear shell bottom hole for facilitating the base bolt to pass through is correspondingly arranged on the bottom wall of the rear shell, a first elastic gasket is arranged between the head of the base bolt and the base, a first bolt sealing assembly is arranged between the base bolt and the base nut, and the connecting portion between the base bolt and the base nut is sealed by the first bolt sealing assembly.

3. The sealed energy storage battery according to claim 2, characterized in that: The first bolt sealing assembly includes a first sealing gasket, a first sealing ring, an O-ring and a base bolt sleeve, the first sealing gasket is arranged between the head of the base bolt and the base, the first elastic gasket is located in the center hole of the first sealing gasket, the base bolt sleeve is arranged in the bottom hole of the rear shell, an axial groove is arranged at the axial position of the base bolt sleeve, a sealing ring installation groove is arranged at the outer periphery of the base bolt sleeve, the first sealing ring is arranged in the axial groove, the O-ring is arranged in the sealing ring installation groove, an axial seal is formed between the first sealing ring and the base bolt, a radial seal is formed between the O-ring and the inner wall of the bottom hole of the rear shell, and the first sealing gasket, the first elastic gasket, the first sealing ring and the base bolt sleeve are respectively sleeved on the base bolt.

4. The sealed energy storage battery according to claim 1, characterized in that: A mounting connecting frame is arranged on the rear side wall of the rear shell, a rear fixing plate is arranged inside the rear shell, the mounting connecting frame is fixed together with the rear fixing plate by a plurality of connecting frame bolts, a connecting frame nut which is threadably matched with the connecting frame bolt is arranged on the rear fixing plate, a connecting frame hole which is convenient for the connecting frame bolt to pass through is arranged on the mounting connecting frame, a rear shell connecting hole which is convenient for the connecting frame bolt to pass through is correspondingly arranged on the rear side wall of the rear shell, a second elastic gasket is arranged between the head of the connecting frame bolt and the mounting connecting frame, a second bolt sealing assembly is arranged between the connecting frame bolt and the connecting frame nut of the rear fixing plate, and the connecting portion between the connecting frame bolt and the connecting frame nut is sealed by the second bolt sealing assembly.

5. The sealed energy storage battery according to claim 4, characterized in that: The second bolt sealing assembly includes a second sealing gasket, a second sealing ring and a connecting frame bolt sleeve, the second sealing gasket is arranged between the head of the connecting frame bolt and the mounting connecting frame, the second elastic gasket is located in the center hole of the second sealing gasket, the connecting frame bolt sleeve is arranged in the connecting hole of the rear shell, the second sealing ring is sleeved on the outside of the connecting frame bolt sleeve, a retaining ring is arranged at the rear end of the second sealing ring, the front end of the second sealing ring is the first sealing surface to seal between the mounting connecting frame and the rear shell, the side surface of the retaining ring close to the front end of the second sealing ring is the second sealing surface to seal the inner side surface of the rear shell, and the second sealing gasket, the second elastic gasket, the second sealing ring and the connecting frame bolt sleeve are respectively sleeved on the connecting frame bolt.

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