Soft package power battery liquid cooling module

Abstract

The utility model discloses a liquid cooling module of a soft package power battery. The main body structure comprises a module end plate, a module U shell, a module cover plate, a module heat management module, a battery pack and a module liquid cooling plate, the module U shell is arranged at the bottommost end of the module, the liquid cooling plate heat-conducting glue is arranged on one side of the module liquid cooling plate in parallel, and the module liquid cooling plate and the liquid cooling plate heat-conducting glue are both arranged in the module U shell. According to the scheme, through the module heat management component, heating of the module battery cells is locally regionalized, a clear heat transfer path is formed, heat conduction resistance is reduced, meanwhile, heat can be effectively prevented from being dissipated to the outside, and the temperature consistency of the battery cells is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid cooling battery technical field especially relates to a kind of soft package power battery liquid cooling module. BACKGROUND

[0002] In battery module level aspect, the mode that heat management system and battery heat exchange mainly have following four kinds: air cooling, battery module bottom cold plate cooling, battery monomer intercalary heat conduction sheet cooling and battery module side cold plate cooling, wherein: the advantage of battery module bottom cold plate is that water cooling plate plays double effect of structure support and cooling;The advantage of battery monomer intercalary heat conduction sheet is that it can be contacted with battery monomer large area, and it is advantageous to improve the temperature uniformity of battery monomer;The advantage of battery module side cold plate is that space utilization is high, a cold plate simultaneously cools two battery modules, and water cooling plate is not used as pressure-bearing component, and vibration effect is good.

[0003] Traditional battery module liquid cooling plate adopts single-side cooling cell mode, and the utilization rate of cold plate is low, and the traditional soft package battery module cell is not provided with heat preservation layer, so the cell heat is easily affected by environment, and the cell temperature consistency is reduced;The soft package battery heat management assembly in prior art scheme is low in integration, and the space utilization rate of battery pack is low. UTILITY MODEL CONTENT

[0004] In view of the above technical problems, the utility model provides a kind of soft package power battery liquid cooling module.

[0005] The utility model is implemented by the following technical solutions: a kind of soft package power battery liquid cooling module, main body structure includes module end plate, module U shell, module cover plate, module heat management module, battery group and module liquid cooling plate;The module U shell is set at the bottom end of module, and the liquid cooling plate heat-conducting glue is arranged in parallel on one side of the module liquid cooling plate, and the module liquid cooling plate and the liquid cooling plate heat-conducting glue are all arranged in the module U shell.

[0006] Specifically, the battery group includes a plurality of battery modules symmetrically arranged on both sides of the module liquid cooling plate and the liquid cooling plate heat-conducting glue.

[0007] Specifically, each battery module further includes a plurality of monomer cells inside, a heat-insulating insulation layer on the top and a battery module insulation pad wrapped on the outside.

[0008] Specifically, the plurality of monomer cells are fixed by double-sided adhesive tape.

[0009] Specifically, the adjacent battery modules are further provided with a heat-insulating insulation plate.

[0010] Specifically, the module U shell is further provided with a module U shell insulation pad on the outside.

[0011] Specifically, the module thermal management module comprises a heat insulation plate, a heat insulation layer, a battery module heat preservation pad, a U-shell heat preservation pad and a liquid cooling plate heat conducting adhesive.

[0012] Specifically, the module liquid cooling plate comprises a sealing plate and an internal flow channel sealed by brazing welding.

[0013] The utility model discloses the beneficial effect lies in: the utility model discloses liquid cooling plate double -sided arrangement electric core cooling mode, and the cold plate utilization rate is high, and the module internal module thermal management assembly arrangement level order provides " heat flow passage " for electric core liquid cooling heat dissipation, and reduces the heat dissipation thermal resistance, and the module thermal management component has the high -efficient heat preservation effect simultaneously, improves module electric core temperature consistency, adopts the battery modularization design, and the structure is compact, and the space utilization rate is high, and the high integration. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, below will to the drawing needed to use in the embodiment or prior art description simple introduction, obviously, the drawing in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, can also obtain other drawings according to the structure shown in these drawings.

[0015] Figure 1 It is the soft package power battery liquid cooling module isometric drawing in the embodiment of the utility model;

[0016] Figure 2 It is the soft package power battery liquid cooling module explosion decomposition schematic view in the embodiment of the utility model;

[0017] Figure 3 It is the battery module detail drawing in the embodiment of the utility model;

[0018] Figure 4 It is the liquid cooling plate detail drawing in the embodiment of the utility model;

[0019] Wherein, 1-module cover plate, 2-module end plate, 3-module U shell, 4-module liquid cooling plate, 5-heat insulation plate, 6-module U shell heat preservation pad, 7-battery module, 8-liquid cooling plate heat conducting adhesive;

[0020] 101- sink, 102- cutout groove, 103- square sink, 104- long strip opening, 105- stand, 106- sealing groove, 107- mounting column, 108- cutout, 109- hole, 110- mounting hole site;

[0021] 401- sealing plate, 402- internal flow channel;

[0022] 701- monomer electric core, 702- heat insulation layer, 703- battery module heat preservation pad. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments but not all of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0024] It should be noted that similar reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0025] The embodiments of the present application will be described below with reference to the drawings. Figures 1-4 The embodiments of the present application will be described below with reference to the drawings.

[0026] The present application provides a kind of soft package power battery liquid cooling module, in a preferred embodiment, pool liquid cooling module main structure includes module end plate 2, module U shell 3, module cover plate 1, module thermal management module, battery pack and module liquid cooling plate 4;The module U shell 3 is set to the bottom end of module, one side of the module liquid cooling plate 4 is provided with liquid cooling plate heat-conducting adhesive 8 in parallel, and the module liquid cooling plate 4 and liquid cooling plate heat-conducting adhesive 8 are all arranged in the inside of module U shell 3.

[0027] In the present embodiment, battery pack includes a plurality of battery modules 7 symmetrically arranged on both sides of module liquid cooling plate 4 and liquid cooling plate heat-conducting adhesive 8.

[0028] In the present embodiment, each battery module 7 further includes internal multilayer monomer battery cell 701, top heat insulation layer 702 and battery module heat insulation pad 703 wrapped on the outside.

[0029] In the present embodiment, multilayer monomer battery cell 701 is fixed by double-sided adhesive.

[0030] In the present embodiment, heat insulation plate 5 is further arranged between adjacent battery modules 7.

[0031] In the present embodiment, module U shell 3 is further provided with module U shell heat insulation pad 6 on the outside.

[0032] In the present embodiment, module thermal management module includes heat insulation plate 5, heat insulation layer 702, battery module heat insulation pad 703, U shell heat insulation pad 6 and liquid cooling plate heat-conducting adhesive 8.

[0033] In the present embodiment, In the present embodiment,

[0034] The module liquid cooling plate 4 comprises a sealing plate 401 and an internal flow channel 402 which are also sealed by brazing welding.

[0035] In an embodiment, a high-efficiency liquid-cooled soft-pack battery module mainly comprises a module end plate, a module U-shell, a module cover plate, a module thermal management component, a plurality of battery modules, a module liquid cooling plate, etc. The battery module is composed of a single soft-pack battery cell and a module thermal management assembly. The module thermal management assembly divides a single battery module into four series modules to ensure the heat transfer path of the battery cell. The module thermal management component provides a "heat path" for the heat dissipation of the battery cell to the module liquid cooling plate. The liquid cooling plate adopts a double-sided cooling battery cell mode to timely take away heat. The advantage of the scheme is that the module battery cell heating is localized by the module thermal management component, a clear heat transfer path is formed, the thermal resistance is reduced, and the battery cell temperature consistency is effectively improved.

[0036] As shown in Figure 1 , Figure 2 The soft-pack power battery liquid cooling module comprises the following specific components:

[0037] The module cover plate 1 is a main component of the module shell and is fixed.

[0038] The module end plate 2 is a main component of the module shell and is fixed.

[0039] The module U-shell 3 is a main structure of the module shell and is fixed.

[0040] The module liquid cooling plate 4 is a component of the module, through which cooling liquid flows, and cools / heats the module battery cell.

[0041] The heat insulation plate 5 is a main component of the module, which insulates the heat transfer between the battery modules and improves the temperature consistency of the module battery cell. The heat insulation plate 5 is made of a mica plate layer and has high temperature resistance and high temperature impact resistance.

[0042] The module U-shell heat insulation pad 6 is a main component of the module, which reduces the heat transfer between the modules and is made of composite aerogel.

[0043] The battery module 7 is a main component of the module.

[0044] The liquid cooling plate heat-conducting adhesive 8 is a component of the module, which is a two-component heat-conducting adhesive with a large thermal conductivity and excellent heat-conducting performance.

[0045] The specific structure of the battery module is shown in Figure 3 and comprises:

[0046] The single battery cell 701 is a component of the battery module and is fixed by double-sided adhesive.

[0047] Thermal insulation layer 702: battery module component; increase the thermal resistance of the module, isolate heat transfer, achieve the effect of battery module series module insulation; made of composite aerogel and plastic particle foamed foam;

[0048] Battery module insulation pad 703: battery module component; isolate the heat of the module from being conducted outward, prevent the spread of cell heat; made of composite aerogel, with very high thermal insulation performance.

[0049] Description: The module thermal management assembly includes: thermal insulation layer, battery module insulation pad.

[0050] In this embodiment, the module thermal management assembly includes: thermal insulation layer 702, battery module insulation pad 703, insulation plate 5, module U shell insulation pad 6, and liquid cooling plate thermal conductive glue 8.

[0051] As shown in Figure 4 The module liquid cooling plate 4 is composed of a component 401 and a component 402, and the two components are sealed by brazing.

[0052] For the foregoing embodiments, in order to simply describe, they are all expressed as a series of action combinations, but those skilled in the art should know that the application is not limited by the order of the described actions, because according to the application, some steps can be performed in other order or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification are preferred embodiments, and the actions involved are not necessarily required by the application.

[0053] In the above embodiments, the basic principles and main features of the utility model and the advantages of the utility model are described. Those skilled in the art should know that the utility model is not limited by the above embodiments, and the above embodiments and the description in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the protection scope of the claims of the utility model.

Claims

1. A soft package power battery liquid cooling module, characterized in that, The main body structure comprises a module end plate (2), a module U shell (3), a module cover plate (1), a module thermal management module, a battery pack and a module liquid cooling plate (4); the module U shell (3) is arranged at the bottom end of the module, and the module liquid cooling plate (4) is provided with liquid cooling plate heat conduction glue (8) on one side in parallel; the module liquid cooling plate (4) and the liquid cooling plate heat conduction glue (8) are arranged in the module U shell (3).

2. The liquid-cooled module of the soft package power battery according to claim 1, characterized in that, The battery pack comprises a plurality of battery modules (7) symmetrically arranged on both sides of the module liquid cooling plate (4) and the liquid cooling plate heat conduction glue (8).

3. The liquid-cooled module of soft package power battery according to claim 2, characterized in that, Each battery module (7) further comprises a plurality of single cell batteries (701) inside, a heat insulation layer (702) on the top and a battery module heat insulation pad (703) wrapped outside.

4. The liquid-cooled module of soft package power battery according to claim 3, characterized in that, The plurality of single cell batteries (701) are fixed by double-sided adhesive tape.

5. The liquid-cooled module of soft package power battery according to claim 4, characterized in that, Heat insulation plates (5) are further arranged between adjacent battery modules (7).

6. The liquid-cooled module of soft package power battery according to claim 5, characterized in that, The module U shell (3) is further provided with a module U shell heat insulation pad (6) outside.

7. The liquid-cooled module of soft package power battery according to claim 6, characterized in that, The module thermal management module comprises the heat insulation plates (5), the heat insulation layer (702), the battery module heat insulation pad (703), the U shell heat insulation pad (6) and the liquid cooling plate heat conduction glue (8). 8.The liquid-cooled soft-pack power battery module of claim 1, wherein, The module liquid cooling plate (4) comprises a sealing plate (401) and an internal flow channel (402) which are further sealed by brazing.

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