Structure applied to fixing mode of internal module of lithium ion power battery pack of electric two-wheeled vehicle

Abstract

The utility model relates to the technical field of fixing of an internal module of a lithium ion power battery pack of an electric two-wheeled vehicle, and discloses a structure applied to a fixing mode of the internal module of the lithium ion power battery pack of the electric two-wheeled vehicle. Comprising a lower cover mechanism, a main body mechanism is arranged on the surface of the lower cover mechanism, a battery mechanism is arranged on the surface of the main body mechanism, the main body mechanism is located above the lower cover mechanism, the battery mechanism is located in the main body mechanism, and the lower cover mechanism comprises a battery pack lower cover. According to the structure applied to the internal module fixing mode of the lithium ion power battery pack of the electric two-wheeled vehicle, the limiting columns and the limiting hole structures are utilized, original peripheral foam limiting is removed, labor and product cost is saved, and assembling is easy; foam is removed, charging and discharging heat dissipation in the module is facilitated, and the problem that the core temperature is too high in the using process of the battery pack is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing internal modules of lithium-ion power battery packs for electric two-wheeled vehicles, and specifically to a structure for fixing internal modules of lithium-ion power battery packs for electric two-wheeled vehicles. Background Art

[0002] At present, most of the power battery pack modules on the market are fixed in the box by using foam compression limiters on all sides and fixing with upper cover strips, which will not only increase production costs but also reduce space utilization. If the surrounding areas are filled with foam, the heat dissipation problem of the module cannot be considered. At the same time, using foam compression limiters is not conducive to staff operation. Therefore, we propose a structure for fixing modules inside lithium-ion power battery packs for electric two-wheeled vehicles. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the utility model provides a structure for fixing the internal modules of the lithium-ion power battery pack of an electric two-wheeled vehicle, including a lower cover mechanism, a main body mechanism is arranged on the surface of the lower cover mechanism, a battery mechanism is arranged on the surface of the main body mechanism, the main body mechanism is located above the lower cover mechanism, and the battery mechanism is located inside the main body mechanism. The lower cover mechanism includes a battery pack lower cover, four limit columns are fixedly connected to the top of the battery pack lower cover, a card slot is opened on the top of the battery pack lower cover, a plurality of fixing holes are opened on the surface of the battery pack lower cover, a bolt is slidably connected to the inside of the card slot, and a heat insulating sealing pad is clamped inside the card slot.

[0004] Through the above technical solution, the setting of the limiting column facilitates the lateral limiting and guiding of the battery module.

[0005] As a further improvement of the above scheme, the four limiting posts are symmetrically distributed with the battery pack lower cover as the center, the several fixing holes are evenly distributed on the surface of the battery pack lower cover, the four limiting posts are located on the inner side of the slot, the several fixing holes are located inside the slot, the fixing holes pass through the inner wall of the slot and extend to the bottom of the battery pack lower cover, and the bolts pass through the bottom of the fixing holes and extend to the top of the fixing holes.

[0006] As a further improvement of the above scheme, the main structure includes a battery pack case, the inner wall of the battery pack case is fixedly connected to a fixed block, the top of the battery pack case is provided with a plurality of threaded holes, the top of the battery pack case is provided with a battery pack top cover, and the top of the battery pack top cover is rotatably connected to a handle.

[0007] As a further improvement of the above scheme, the size of the bolt is adapted to the size of the threaded hole, a plurality of threaded holes are provided at the bottom of the battery pack case, the bolt and the threaded holes are threadedly connected, and a plurality of fixing holes are provided on the surface of the battery pack top cover.

[0008] As a further improvement of the above solution, the battery mechanism includes a battery module, a limiting hole is provided at the bottom of the battery module, a fixing frame is fixedly connected to the top of the battery module, and a sheet metal strip is provided at the top of the fixing frame.

[0009] Through the above technical solution, a sheet metal strip is provided to facilitate fixing the battery module and the battery pack box.

[0010] As a further improvement of the above scheme, the size of the limiting hole is adapted to the size of the limiting column, the limiting hole and the limiting column are clamped together, the sheet metal strip is threadedly connected to the top of the fixing frame by bolts, and the sheet metal strip is threadedly connected to the fixing block by bolts.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model eliminates the original surrounding foam limits by setting and utilizing the limit column and limit hole structure, thereby saving labor and product costs and facilitating assembly; removing the foam is beneficial to the charging and discharging heat dissipation inside the module, and effectively alleviating the problem of excessive core temperature during the use of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the main mechanism of the utility model;

[0015] Figure 3 This is a schematic diagram of the top view of the battery mechanism of the utility model;

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the battery mechanism of the utility model;

[0017] Figure 5 It is a three-dimensional structural schematic diagram of the lower cover mechanism of the utility model.

[0018] In the figure: 1. lower cover mechanism; 101. battery pack lower cover; 102. limiting column; 103. slot; 104. fixing hole; 105. bolt; 106. thermal insulation sealing pad; 2. main body mechanism; 201. battery pack body; 202. fixing block; 203. threaded hole; 204. battery pack top cover; 205. handle; 3. battery mechanism; 301. battery module; 302. limiting hole; 303. fixing frame; 304. sheet metal strip. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment. Example

[0020] Please combine Figure 1-5 The present embodiment is a structure for fixing the internal module of the lithium-ion power battery pack of an electric two-wheeled vehicle, comprising a lower cover mechanism 1, a main body mechanism 2 is arranged on the surface of the lower cover mechanism 1, a battery mechanism 3 is arranged on the surface of the main body mechanism 2, the main body mechanism 2 is located above the lower cover mechanism 1, and the battery mechanism 3 is located inside the main body mechanism 2. The lower cover mechanism 1 comprises a battery pack lower cover 101, four limiting columns 102 are fixedly connected to the top of the battery pack lower cover 101, a card slot 103 is opened on the top of the battery pack lower cover 101, and a plurality of fixing holes 104 are opened on the surface of the battery pack lower cover 101, a bolt 105 is slidably connected to the inside of the card slot 103, and a heat insulation sealing pad 106 is clamped inside the card slot 103. The limiting columns 102 and the limiting holes 302 structure are used to remove the original surrounding foam limiting, save labor and product costs, and simplify assembly; removing the foam is beneficial to the internal charging and discharging heat dissipation of the module, and effectively alleviates the problem of excessive core temperature during the use of the battery pack.

[0021] The four limiting posts 102 are symmetrically distributed with the battery pack lower cover 101 as the center, and a plurality of fixing holes 104 are evenly distributed on the surface of the battery pack lower cover 101. The four limiting posts 102 are located on the inner side of the card slot 103, and a plurality of fixing holes 104 are located inside the card slot 103. The fixing holes 104 penetrate the inner wall of the card slot 103 and extend to the bottom of the battery pack lower cover 101. The bolts 105 penetrate the bottom of the fixing holes 104 and extend to the top of the fixing holes 104.

[0022] The main body 2 includes a battery pack case 201, the inner wall of which is fixedly connected to a fixing block 202, a top of which is provided with a plurality of threaded holes 203, a top of which is provided with a battery pack cover 204, and a handle 205 is rotatably connected to the top of the battery pack cover 204.

[0023] The size of the bolt 105 matches the size of the threaded hole 203 . A plurality of threaded holes 203 are provided at the bottom of the battery pack case 201 . The bolt 105 is threadedly connected to the threaded hole 203 . A plurality of fixing holes 104 are provided on the surface of the battery pack top cover 204 .

[0024] The battery mechanism 3 includes a battery module 301 . A limiting hole 302 is provided at the bottom of the battery module 301 . A fixing frame 303 is fixedly connected to the top of the battery module 301 . A sheet metal pressure strip 304 is provided at the top of the fixing frame 303 .

[0025] The size of the limiting hole 302 is compatible with the size of the limiting column 102, the limiting hole 302 and the limiting column 102 are clamped together, the sheet metal pressure strip 304 is threadedly connected to the top of the fixing frame 303 through the bolt 105, and the sheet metal pressure strip 304 is threadedly connected to the fixing block 202 through the bolt 105.

[0026] The implementation principle of the structure of a module fixing method inside the lithium-ion power battery pack of an electric two-wheeled vehicle in the embodiment of the present application is as follows: first, the battery pack lower cover 101 is fixed to the bottom of the battery pack case 201 by bolts 105, and then the limiting hole 302 at the bottom of the battery module 301 is aligned with the limiting column 102 for assembly, so that the limiting column 102 is clamped with the limiting hole 302, so that the battery module 301 is limited in the horizontal and vertical directions of the horizontal plane, and at the same time, the surface of the limiting column 102 is increased, chamfered and rounded, which plays an assembly guide role. At this time, the battery module 301 is located inside the battery pack case 201, and then the sheet metal strip 304 is fixed to the fixing frame 303 and the fixing block 202 by bolts 105, so that the battery module 301 is fixed between the battery pack case 201 in the vertical direction, and finally the battery pack top cover 204 is fixed to the top of the battery pack case 201 by bolts 105 to complete the assembly.

[0027] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A structure for fixing the internal module of a lithium-ion power battery pack for an electric two-wheeled vehicle, comprising a lower cover mechanism (1), characterized in that: The surface of the lower cover mechanism (1) is provided with a main body mechanism (2), and the surface of the main body mechanism (2) is provided with a battery mechanism (3), the main body mechanism (2) is located above the lower cover mechanism (1), and the battery mechanism (3) is located inside the main body mechanism (2), the lower cover mechanism (1) comprises a battery pack lower cover (101), the top of the battery pack lower cover (101) is fixedly connected with four limit columns (102), the top of the battery pack lower cover (101) is provided with a slot (103), the surface of the battery pack lower cover (101) is provided with a plurality of fixing holes (104), the interior of the slot (103) is slidably connected with a bolt (105), and the interior of the slot (103) is clamped with a heat insulation sealing pad (106).

2. The structure for fixing the internal module of the lithium-ion power battery pack for electric two-wheeled vehicles according to claim 1 is characterized in that: The four limiting posts (102) are symmetrically distributed with the battery pack lower cover (101) as the center, the plurality of fixing holes (104) are evenly distributed on the surface of the battery pack lower cover (101), the four limiting posts (102) are located on the inner side of the card slot (103), the plurality of fixing holes (104) are located inside the card slot (103), the fixing holes (104) penetrate the inner wall of the card slot (103) and extend to the bottom of the battery pack lower cover (101), and the bolts (105) penetrate the bottom of the fixing holes (104) and extend to the top of the fixing holes (104).

3. The structure for fixing the internal module of the lithium-ion power battery pack for electric two-wheeled vehicles according to claim 1 is characterized in that: The main body (2) comprises a battery pack case (201), the inner wall of the battery pack case (201) is fixedly connected to a fixing block (202), the top of the battery pack case (201) is provided with a plurality of threaded holes (203), the top of the battery pack case (201) is provided with a battery pack top cover (204), and the top of the battery pack top cover (204) is rotatably connected to a handle (205).

4. The structure of fixing the internal module of the lithium-ion power battery pack for electric two-wheeled vehicles according to claim 3 is characterized in that: The size of the bolt (105) matches the size of the threaded hole (203); a plurality of threaded holes (203) are provided at the bottom of the battery pack case (201); the bolt (105) and the threaded hole (203) are threadedly connected; and a plurality of fixing holes (104) are provided on the surface of the battery pack top cover (204).

5. The structure for fixing the internal module of the lithium-ion power battery pack for electric two-wheeled vehicles according to claim 1 is characterized in that: The battery mechanism (3) comprises a battery module (301), a limiting hole (302) is provided at the bottom of the battery module (301), a fixing frame (303) is fixedly connected to the top of the battery module (301), and a sheet metal pressure strip (304) is provided at the top of the fixing frame (303).

6. The structure for fixing the internal module of the lithium-ion power battery pack for electric two-wheeled vehicles according to claim 5 is characterized in that: The size of the limiting hole (302) matches the size of the limiting column (102), the limiting hole (302) and the limiting column (102) are clamped together, the sheet metal pressure strip (304) is threadedly connected to the top of the fixing frame (303) via bolts (105), and the sheet metal pressure strip (304) is threadedly connected to the fixing block (202) via bolts (105).

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