Battery PACK box

Abstract

The utility model discloses a battery PACK box which comprises a box body, the box body comprises a liquid cooling bottom plate and a side plate surrounding the periphery of the liquid cooling bottom plate, the top end of the side plate is provided with a waterproof boss, the bottom end face of the liquid cooling bottom plate is provided with a concave face, and the side wall of the concave face abuts against the outer side of the waterproof boss in an embedded mode; a sealing ring is arranged on the upper end face of the waterproof boss and abuts against the bottom face of the concave face. An external frame structure is not needed, the box body can be flexibly stacked, the structure compactness is improved, the occupied area is reduced, and the system energy density is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery PCAK, in particular to a battery PACK box. Background Art

[0002] At present, the traditional PACK standard box can only lay out a single layer of modules to form a standard box, and then assemble it into a multi-layer battery system through an external frame. As a result, the power battery system occupies a large space in the vehicle and reduces the energy density of the system. Utility Model Content

[0003] The purpose of the utility model is to provide a battery PACK box to solve the problems raised in the above-mentioned background technology. There is no need to rely on an external frame structure. The box itself can be flexibly stacked to improve the compactness of the structure, reduce the floor space, and improve the energy density of the system.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A battery PACK box comprises a box body, wherein the box body comprises a liquid-cooled bottom plate and side plates surrounding the liquid-cooled bottom plate, a waterproof boss is provided at the top end of the side plate, a concave surface is provided at the bottom end surface of the liquid-cooled bottom plate, and the side wall of the concave surface is chime-connected with the outer side of the waterproof boss; a sealing ring is provided on the upper end surface of the waterproof boss, and the sealing ring is abutted against the bottom surface of the concave surface.

[0006] Furthermore: the outer side wall of the waterproof boss is gradually inclined from bottom to top toward the center of the box.

[0007] Furthermore: module mounting beams are provided on two opposite sides of the liquid cooling base plate, wherein at least one module mounting beam is provided with a threading hole which passes through from top to bottom.

[0008] Furthermore: an upper flange is provided at the upper end of the outer side of the side plate, and a lower flange is provided at the lower end of the outer side, wherein: a positioning pin is provided on the upper flange, and a positioning hole for accommodating the positioning pin is opened on the lower flange.

[0009] Furthermore: a water nozzle is provided on the side plate, and a water box for connecting to the water flow channel of the liquid cooling bottom plate is provided on the module mounting beam, and the water box is connected to the water nozzle.

[0010] Furthermore: the outer side of the side panel is also provided with a lifting lug.

[0011] Furthermore: the module mounting beam is provided with through threaded holes spaced apart along its length direction.

[0012] Furthermore: fixing ears are also provided on the outer sides of the side panels.

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

[0014] The utility model is provided with a waterproof boss on the upper end of the side panel of the box, a concave surface on the lower end of the side panel, and a sealing ring is bonded on the waterproof boss, so that the sealing ring and the bottom end surface of the concave surface are tightly abutted when stacked, and the waterproof boss is embedded with the side wall of the concave surface, which not only effectively avoids the stacking from offset, but also realizes the waterproof function of the box. The utility model realizes the stacking of PACK boxes without the aid of an external frame, ensures the stability of the stacking, reduces the floor space, and improves the energy density. In addition, through the threading holes opened on the module mounting beam, the high-voltage circuits between the multi-layer modules are connected inside the box, which greatly reduces the wiring harness and electrical connectors outside the box, and has a simple and regular structure and is easy to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 The utility model is different from Figure 1 Schematic diagram of the structure of the perspective;

[0017] Figure 3 It is a partial side sectional view of the box body in the utility model;

[0018] In the figure: 1-liquid cooling bottom plate, 11-concave surface, 2-side plate, 21-waterproof boss, 3-upper flange, 4-module mounting beam, 41-threading hole, 42-threaded hole, 5-water nozzle, 6-water box, 7-lifting ear, 8-fixing ear, 9-lower flange, 91-positioning hole, 10-positioning pin. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0021] See also Figure 1-3This embodiment discloses a battery PACK box, including an open box body, the box body including a liquid cooling bottom plate 1, a side plate 2 enclosed around the liquid cooling bottom plate 1, a waterproof boss 21 is provided at the top of the side plate 2, and a sealing ring is provided on the upper end surface of the waterproof boss 21; the bottom end surface of the liquid cooling bottom plate 1 is provided with a concave surface 11, the side wall of the concave surface 11 is in a chimerical abutment with the outer side of the waterproof boss 21, and the sealing ring is in abutment with the bottom surface of the concave surface 11. Through the abutment of the sealing ring with the bottom end surface of the concave surface 11 and the chimerical engagement of the waterproof boss 21 with the side wall of the concave surface 11, when the boxes are stacked up and down, not only is the stacking deviation effectively avoided, but the waterproof function of the box body is also achieved.

[0022] Furthermore, the outer wall of the waterproof boss 21 is gradually tilted from bottom to top toward the center of the box to form an inclined surface, which reduces the possibility of interference between the waterproof boss 21 and the concave surface 11 when stacked, and increases the convenience of stacking.

[0023] Furthermore, module mounting beams 4 are provided on two opposite sides of the liquid cooling base plate 1, and the module mounting beams 4 are used to position the batteries placed in the box. A through-hole 41 is provided on one of the module mounting beams 4, through which the battery harness passes, so that the high-voltage circuits between the multi-layer modules are connected in the box, reducing the harness and electrical connectors outside the box, making the overall structure of the box more concise and regular, and reducing the occupied space.

[0024] Furthermore, an upper flange 3 is provided at the upper end of the outer side of the side panel 2, and a lower flange 9 is provided at the lower end of the outer side, wherein: the upper and lower flanges are connected by a plurality of metal frame bars; a positioning pin 10 is provided on the upper flange 3, and a positioning hole 91 for accommodating the positioning pin 10 is provided on the lower flange 9. When the upper and lower boxes are stacked, the positioning pin 10 of the lower box is inserted into the positioning hole 91 of the upper box to improve the stability of the stacking.

[0025] Furthermore, the module mounting beam 4 is provided with threaded holes 42 spaced apart along its length. When stacked, the upper and lower boxes are fixed by long bolts passing through the threaded holes 42.

[0026] Furthermore, a water nozzle 5 is provided on the side plate 2, and a water box 6 for connecting the water flow channel of the liquid cooling bottom plate 1 is provided on the module mounting beam 4, and the water box 6 is connected to the water nozzle 5. The water nozzle 6 is connected to the water cooling pipe, and the water box 6 is used to transition the flow direction of water in the water nozzle 5 into the liquid cooling bottom plate 1.

[0027] Furthermore, a lifting lug 7 is provided on the outer side of the side plate 2 for connecting a lifting device.

[0028] Furthermore, fixing ears 8 are provided on the outer sides of the side panels 2 for fixing the stacked boxes to the transport vehicle during transportation.

[0029] When the utility model is used, the battery is first placed in the box, the battery harness is inserted into the threading hole 41, and then an empty box is stacked on the box, the positioning pin 10 is inserted into the positioning hole 91, and then the battery is placed in the empty box, and the battery harness is arranged again, and inserted into the threading hole 41 to connect the upper and lower harnesses; after the boxes are stacked to the required number of layers, long bolts are inserted into the threaded holes 42 to fix the upper and lower boxes; a sling is used to move the stacked multi-layer boxes onto a transport vehicle, and the fixing ears 8 are connected to the vehicle body by rigging.

[0030] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0031] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent changes made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A battery PACK box, comprising a box body, wherein the box body comprises a liquid cooling bottom plate (1) and a side plate (2) enclosed around the liquid cooling bottom plate (1), characterized in that: The top end of the side plate (2) is provided with a waterproof boss (21); the bottom end surface of the liquid cooling bottom plate (1) is provided with a concave surface (11); the side wall of the concave surface (11) is in chimeric contact with the outer side of the waterproof boss (21); the upper end surface of the waterproof boss (21) is provided with a sealing ring, and the sealing ring is in contact with the bottom surface of the concave surface (11).

2. The battery PACK box according to claim 1, characterized in that: The outer side wall of the waterproof boss (21) is gradually inclined from bottom to top toward the center of the box body.

3. The battery PACK box according to claim 1, characterized in that: Module mounting beams (4) are provided on two opposite sides of the liquid cooling base plate (1), wherein at least one module mounting beam (4) is provided with a threading hole (41) that passes through from top to bottom.

4. The battery PACK box according to claim 1, characterized in that: The side plate (2) is provided with an upper flange (3) at the upper end of the outer side and a lower flange (9) at the lower end of the outer side, wherein: a positioning pin (10) is provided on the upper flange (3), and a positioning hole (91) for accommodating the positioning pin (10) is opened on the lower flange (9).

5. The battery PACK box according to claim 3, characterized in that: The side plate (2) is provided with a water nozzle (5), and the module mounting beam (4) is provided with a water box (6) for connecting to the water flow channel of the liquid cooling bottom plate (1), and the water box (6) is connected to the water nozzle (5).

6. The battery PACK box according to claim 3, characterized in that: The outer side of the side plate (2) is also provided with a lifting lug (7).

7. The battery PACK box according to claim 3, characterized in that: The module mounting beam (4) is provided with threaded holes (42) extending therethrough at intervals along its length.

8. The battery PACK box according to claim 1, characterized in that: The outer side of the side plate (2) is also provided with a fixing ear (8).

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