Frame structure of cylindrical battery and cylindrical battery system

Abstract

The utility model relates to a cylindrical battery frame structure and a cylindrical battery system, the cylindrical battery frame structure comprises a lower shell, a battery, an upper bracket and an upper cover, the lower shell is of a box-shaped structure with an opening on one surface and consists of a shell bottom surface and a shell surrounding edge, and the shell bottom surface is provided with a plurality of first battery accommodating grooves for accommodating the bottom of the battery; the upper support is of a plate-shaped structure and comprises an upper support upper surface, and a plurality of second battery containing grooves used for containing the tops of batteries are formed in the upper support upper surface. The lower shell is hermetically connected with the upper cover; the upper cover is of a box-shaped structure with an opening in one face and is composed of an upper cover bottom and an upper cover surrounding edge. The lower shell, the upper bracket and the upper cover are aligned with the batteries in the lower shell and the upper bracket to form a three-dimensional fixing structure; the device has the advantages of being reasonable in structure, good in structural stability, high in practicability and high in safety coefficient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cylindrical battery technical field, concretely relates to a frame structure and cylindrical battery system of cylindrical battery. BACKGROUND

[0002] Lithium ion or sodium ion battery has the advantages of light weight, large energy storage, large power, no pollution, long service life, small self-discharge coefficient, wide temperature adaptation range, etc., and is gradually favored by people, and gradually replaces other traditional batteries in the field of energy storage and power battery. For a battery system, a higher structural strength is generally designed in one direction, and this direction is used as the fixed direction of the battery system. If other projects need the battery system to be fixed in another direction, it limits the application of the battery system in other projects, so it is necessary to design a battery system with high structural strength in all directions to ensure good project adaptability. Therefore, it is necessary to provide a frame structure and cylindrical battery system of cylindrical battery with reasonable structure, good structural stability, strong practicability and high safety factor. SUMMARY

[0003] The utility model discloses a frame structure and cylindrical battery system of cylindrical battery with reasonable structure, good structural stability, strong practicability and high safety factor.

[0004] The utility model discloses a frame structure and cylindrical battery system of cylindrical battery with reasonable structure, good structural stability, strong practicability and high safety factor.

[0005] The first battery accommodating groove is composed of the shell bottom surface and the cylindrical surface.

[0006] The shell bottom surface and the cylindrical surface are uniformly distributed with a plurality of steps with the same height at the junction.

[0007] There is one or a plurality of notches on the cylindrical surface, and the notch extends to the shell bottom surface.

[0008] The bottom surface of the shell is provided with a plurality of shell middle fixing columns, the inner wall of the shell surrounding edge is provided with a plurality of shell edge fixing columns, and a groove for accommodating sealing glue is arranged along the edge of the shell surrounding edge; a plurality of first fixing holes are arranged outside the groove on the shell surrounding edge.

[0009] The upper surface of the upper support is further provided with a plurality of upper support middle fixing columns matched with the shell middle fixing columns and a plurality of upper support edge fixing columns matched with the shell edge fixing columns.

[0010] The bottom of the upper cover is provided with a plurality of upper cover middle fixing columns matched with the upper support middle fixing columns and a plurality of upper cover edge fixing columns matched with the upper support edge fixing columns.

[0011] A circle of bosses matched with the groove is arranged along the edge of the upper cover surrounding edge, and a plurality of second fixing holes matched with the first fixing holes are arranged outside the bosses on the upper cover surrounding edge.

[0012] A cylindrical battery system has the frame structure of the cylindrical battery.

[0013] A cylindrical battery system comprises:

[0014] A CCS assembly is located between the upper support and the upper cover;

[0015] A BMS fixing support is installed on the inner side of the lower shell, and a BMS is installed on the BMS fixing support;

[0016] A power connector and a signal connector are installed on the sunken surface on one side of the upper cover corresponding to the BMS fixing support, and the power connector and the signal connector are detachably connected in a plug-in manner;

[0017] A top handle and a side handle are installed on the upper cover and the front of the lower shell.

[0018] The cylindrical battery frame structure of the utility model can be applied to cylindrical batteries, in use, the utility model forms a three-dimensional fixing structure for the battery through the lower shell, the upper support and the upper cover, which can guarantee the structural stability of the battery in each direction, that is, the battery system can be placed and fixed in different directions, and the battery system has good structural strength in each direction; the utility model has the advantages of reasonable structure, good structural stability, strong practicability and high safety factor. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the lower shell of the utility model.

[0020] Figure 2 It is the structure schematic view of the upper support of the utility model.

[0021] Figure 3 It is the structure schematic view of the upper cover of the utility model.

[0022] Figure 4 It is the top view of a cylindrical battery system of the utility model.

[0023] Figure 5 It is the sectional view of a cylindrical battery system of the utility model.

[0024] Figure 6 It is the explosion view of a cylindrical battery system of the utility model.

[0025] In the drawing: 1, lower shell 1-1, shell bottom surface 1-2, shell surrounding edge 1-3, first battery accommodating groove 1-4, cylindrical surface 1-5, step 1-6, notch 1-7, shell middle fixed column 1-8, shell edge fixed column 1-9, recess 1-10, first fixed hole 2, battery 3, upper support 3-1, upper support upper surface 3-2, second battery accommodating groove 3-3, upper support middle fixed column 3-4, upper support edge fixed column 4, CCS assembly 5, upper cover 5-1, upper cover bottom 5-2, upper cover surrounding edge 5-3, upper cover middle fixed column 5-4, upper cover edge fixed column 5-5, boss 5-6, second fixed hole 6, BMS fixed support 7, BMS 8, power connector 9, signal connector 10, top handle 11, side handle 12, sealing glue 13, screw rod 0, battery system 15-1, second bolt 15-2, first bolt. DETAILED DESCRIPTION

[0026] The utility model will be further explained in connection with the drawings. EMBODIMENT

[0027] As Figures 1-6As shown, a frame structure of a cylindrical battery includes a lower shell 1, a battery 2, an upper support 3 and an upper cover 5, the lower shell 1 is a box-shaped structure with one side open, which is composed of a shell bottom surface 1-1 and a shell surrounding edge 1-2, the shell bottom surface 1-1 is provided with a plurality of first battery accommodating grooves 1-3 for accommodating the bottom of the battery 2; the upper support 3 is a plate-shaped structure, which includes an upper support upper surface 3-1, and a plurality of second battery accommodating grooves 3-2 are arranged on the upper support upper surface 3-1 for accommodating the top of the battery 2; the lower shell 1 and the upper cover 5 are sealed by sealing glue 12 and locked together by a screw rod 13; the upper cover 5 is a box-shaped structure with one side open, which is composed of an upper cover bottom 5-1 and an upper cover surrounding edge 5-2; the battery 2 located inside the lower shell 1 and the upper support 3 forms a three-dimensional fixed structure through the lower shell 1, the upper support 3 and the upper cover 5.

[0028] The first battery accommodating groove 1-3 is composed of the shell bottom surface 1-1 and a cylindrical surface 1-4.

[0029] In this embodiment, the first battery accommodating groove is used for positioning and fixing the battery or one end of the bottom of the battery.

[0030] A plurality of steps 1-5 with the same height are uniformly distributed at the junction of the shell bottom surface 1-1 and the cylindrical surface 1-4 in the first battery accommodating groove 1-3.

[0031] In this embodiment, the steps are used to support the battery or the cylindrical battery, so as to reserve a certain space between the bottom of the cylindrical battery and the shell bottom surface, and to reserve opening space for the opening of the explosion-proof valve at the bottom of the cylindrical battery.

[0032] There is one or a plurality of notches 1-6 on the cylindrical surface 1-4, which extend to the shell bottom surface 1-1.

[0033] In this embodiment, the notches are smoke exhaust channels, when the battery triggers heat runaway, high-temperature and high-pressure gas bursts through the explosion-proof valve at the bottom of the cylindrical battery, and can be quickly exhausted through the notches, preventing the battery from exploding.

[0034] A plurality of shell middle fixing columns 1-7 are arranged on the shell bottom surface 1-1, a plurality of shell edge fixing columns 1-8 are arranged on the inner wall of the shell surrounding edge 1-2, and a groove 1-9 for accommodating the sealing glue 12 is arranged along the edge of the shell surrounding edge 1-2; a plurality of first fixing holes 1-10 are arranged on the outer side of the groove 1-9 on the shell surrounding edge 1-2.

[0035] The upper support 3 upper surface is further provided with a plurality of upper support middle fixing columns 3-3 matched with the shell middle fixing columns 1-7, and a plurality of upper support edge fixing columns 3-4 matched with the shell edge fixing columns 1-8.

[0036] The bottom of the upper cover 5 is provided with upper cover middle fixing columns 5-3 matched with the upper support middle fixing columns 1-7, and upper cover edge fixing columns 5-4 matched with the upper support edge fixing columns 3-4.

[0037] A ring of protrusions 5-5 matched with the grooves 1-9 is arranged along the edge of the upper cover surrounding edge 5-2, and a plurality of second fixing holes 5-6 matched with the first fixing holes 1-10 are arranged outside the protrusions 5-5 on the upper cover surrounding edge 5-2.

[0038] In the embodiment, as shown in the vertical section of the battery system and the upper cover 5, Figures 4-5 The bottom end of the cylindrical battery shell is positioned and fixed through the first battery accommodating groove 1-3, and the top end of the cylindrical battery shell is positioned and fixed through the second battery accommodating groove 3-2.

[0039] The lower part of the upper support middle fixing column 3-3 is connected and fixed with the shell middle fixing column 1-7 of the lower shell 1 through the first bolt 15-2, and the upper part of the upper support middle fixing column 3-3 is clamped on the upper cover middle fixing column 5-3.

[0040] Similarly, the lower part of the upper support edge fixing column 3-4 is connected and fixed with the shell edge fixing column 1-8 of the lower shell 1 through the second bolt 15-1, and the upper part of the upper support edge fixing column 3-4 is clamped on the upper cover edge fixing column 5-4.

[0041] The lower shell 1 and the upper cover 5 are sealed by the sealing glue 12 and are tightly fixed together by the screw rod 13.

[0042] As described above, the battery system 0 forms a three-dimensional fixed structure on the cylindrical battery 2 through the lower shell 1, the upper support 3 and the upper cover 5, which can guarantee the structural stability of the battery in each direction, that is, the battery system can be placed and fixed in different directions, and the battery system has good structural strength in each direction.

[0043] The utility model discloses a kind of frame structures of cylindrical battery, in use, the utility model forms a three-dimensional fixed structure on the cylindrical battery 2 through the lower shell 1, the upper support 3 and the upper cover 5, this structure can guarantee the structural stability of the battery in each direction, that is, the battery system can be placed and fixed in different directions, and the battery system has good structural strength in each direction;The utility model has the advantages of reasonable structure, good structural stability, strong practicality, high safety factor. Embodiment

[0044] As shown in Figures 1-6 A kind of cylindrical battery system 0, with the frame structure of cylindrical battery described above;Including:

[0045] CCS component 4, which is located between the upper bracket 3 and the upper cover 5;

[0046] BMS mounting bracket 6 and BMS 7, wherein the BMS mounting bracket 6 is installed on the inner side of the lower housing 1, and the BMS 7 is installed on the BMS mounting bracket 6;

[0047] Power connector 8 and signal connector 9, the signal connector 9 is installed on the sunken surface of the upper cover 5 corresponding to the BMS fixing bracket 6 on one side, and the power connector 8 and signal connector 9 are detachably connected by plugging in.

[0048] A top handle 10 and a side handle 11 are provided. The top handle 10 is mounted on the upper cover 5, and the side handle 11 is mounted on the front of the lower housing 1.

[0049] This utility model is a frame structure for a cylindrical battery. In use, the cylindrical battery 2 is fixed in three dimensions by the lower shell 1, the upper bracket 3, and the upper cover 5. This structure can ensure the structural stability of the battery in all directions, that is, the battery system can be placed and fixed in different directions, ensuring that the battery system has good structural strength in all directions. This utility model has the advantages of reasonable structure, good structural stability, strong practicality, and high safety factor.

Claims

1. A frame structure for a cylindrical battery, comprising a lower casing, a battery, an upper support, and a top cover, characterized in that: The lower housing is a box-shaped structure with one open side, consisting of a bottom surface and a perimeter. The bottom surface of the housing has several first battery receiving slots for accommodating the bottom of the battery. The upper support is a plate-shaped structure, including an upper surface, on which several second battery receiving slots are provided for accommodating the top of the battery. The lower housing is sealed to the upper cover. The upper cover is a box-shaped structure with one open side, consisting of a bottom surface and a perimeter. The lower housing, upper support, and upper cover together form a three-dimensional fixing structure for the battery located inside the lower housing and upper support.

2. The frame structure of a cylindrical battery according to claim 1, characterized in that: The first battery receiving slot consists of the bottom surface of the casing and a cylindrical surface.

3. The frame structure of a cylindrical battery according to claim 2, characterized in that: Several steps of the same height are evenly distributed at the junction of the bottom surface of the casing and the cylindrical surface in the first battery receiving groove.

4. The frame structure of a cylindrical battery according to claim 2, characterized in that: There is one or more notches on the cylindrical surface, which extend all the way to the bottom surface of the shell.

5. The frame structure of a cylindrical battery according to claim 1, characterized in that: The bottom surface of the housing is provided with a number of housing middle fixing posts, the inner wall of the housing perimeter is provided with a number of housing edge fixing posts, and a groove for accommodating sealant is provided along the edge of the housing perimeter; a number of first fixing holes are provided on the outer side of the groove on the housing perimeter.

6. The frame structure of a cylindrical battery according to claim 1, characterized in that: The upper surface of the upper bracket is also provided with a number of upper bracket middle fixing posts that match the middle fixing posts of the shell, and a number of upper bracket edge fixing posts that match the edge fixing posts of the shell.

7. The frame structure of a cylindrical battery according to claim 1, characterized in that: The lower housing and the upper cover are sealed with sealant and locked together with screws; the bottom of the upper cover is provided with a number of upper cover middle fixing posts that match the middle fixing posts of the upper bracket, and a number of upper cover edge fixing posts that match the edge fixing posts of the upper bracket.

8. The frame structure of a cylindrical battery according to claim 7, characterized in that: A ring of protrusions matching the groove is provided along the edge of the upper cover rim, and several second fixing holes matching the first fixing holes are provided on the outer side of the protrusions on the upper cover rim.

9. A cylindrical battery system, characterized in that: The cylindrical battery has the frame structure of any one of claims 1-8.

10. A cylindrical battery system according to claim 9, characterized in that: include: CCS assembly, the CCS assembly being located between the upper support and the upper cover; BMS mounting bracket and BMS, wherein the BMS mounting bracket is installed on the inner side of the lower housing, and the BMS is mounted on the BMS mounting bracket; The power connector and the signal connector are installed on the sunken surface of the upper cover corresponding to the BMS fixing bracket. The power connector and the signal connector are detachably connected by plugging in. The device includes a top handle and a side handle, with the top handle mounted on the top cover and the side handle mounted on the front of the lower housing.

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