New energy automobile integrated battery module

Abstract

The utility model relates to the technical field of new energy batteries, and discloses an integrated battery module of a new energy automobile. The module shell is formed by sequentially connecting and enclosing a first frame, a second frame and a side frame end to end; the first insulating layers are respectively arranged among the first frame, the second frame, the side frame, the separation frame and the battery core, the second insulating layers are arranged between the side frame and the battery core, and the first insulating layers and the second insulating layers are insulating blocks with hollow middle parts; and the cooling liquid channel is arranged in the inner cavity of the first frame, and cooling liquid circulates in the cooling liquid channel. According to the battery module disclosed by the utility model, rapid heat conduction and heat dissipation can be conveniently carried out on electrical property in the battery module, and meanwhile, the insulation cost is effectively reduced by arranging the insulating layer which is partially designed to be hollow between the battery cell and the frame.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy batteries, in particular to an integrated battery module for new energy vehicles. Background Art

[0002] As the core component of new energy vehicles, power batteries are highly sensitive to temperature changes. Excessive temperature will greatly shorten the battery life, affect the normal charging and discharging of the battery, and bring safety hazards such as fire and explosion.

[0003] Therefore, it is necessary to cool the power battery in an overheated environment to maintain the operating temperature of the battery within a certain range; at the same time, the existing battery technology adopts a full-surface insulation layer design between the battery cell and the metal frame of the battery module, which increases the amount of insulation material used and increases the cost. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides an integrated battery module for new energy vehicles, which solves the problem that the heat dissipation efficiency of the battery cells in the prior battery module needs to be improved. At the same time, the insulation layer is arranged in a full-surface design, which results in a large amount of insulation material used and an increased insulation cost.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a new energy vehicle integrated battery module, including: a module shell, the module shell is formed by a first frame, a second frame, and a side frame connected end to end in sequence, the first frame and the second frame are opposite and parallel to each other, and the side frames are arranged in two and relatively parallel positions; a partition frame, arranged between the first frame and the second frame and fixedly connected to the side frame, and a plurality of battery cells are evenly distributed in two independent cavities formed by the partition frame and the first frame and the second frame; a first insulating layer and a second insulating layer, the first insulating layer is respectively arranged between the first frame, the second frame, the side frame, the partition frame and the battery cell, the second insulating layer is arranged between the side frame and the battery cell, and the first insulating layer and the second insulating layer are both insulating blocks with hollow middle parts; a cooling liquid channel, arranged in the inner cavity of the first frame, and cooling liquid circulates in the cooling liquid channel.

[0008] Preferably, the first insulating layer and the second insulating layer are one or more of polypropylene materials, polyethylene materials and polycarbonate materials, the first insulating layer is fixedly connected to the first frame, the second frame and the partition frame, and the second insulating layer is fixedly connected to the side frame.

[0009] Preferably, a heat conducting plate is provided between the side frame and the first frame, the heat conducting plate is fixedly connected to the first frame, a slot with a single-side opening is provided on the side frame, and the slot and the heat conducting plate can be plug-connected.

[0010] Preferably, the gap between the heat conducting plate and the notch is filled with heat conducting silica gel.

[0011] Preferably, the lower parts of the first frame, the second frame and the partition frame are all integrally formed with extension plates, and mounting holes are arranged on the extension plates located on the first frame and the second frame.

[0012] Preferably, two ends of the coolant channel are connected with a liquid inlet and a liquid outlet respectively, and both the liquid inlet and the liquid outlet are provided with external threads.

[0013] Preferably, a monitoring module is provided on one side of the side frame for monitoring the voltage and temperature of the battery cell.

[0014] (III) Beneficial effects

[0015] The utility model has the following beneficial effects:

[0016] The new energy vehicle integrated battery module can reduce assembly procedures and facilitate rapid assembly when the entire battery module is assembled by providing the first frame, the second frame and the side frames; the partition frame can increase the number of assembled battery cells in a single frame, thereby improving the battery capacity in the module; the insulating layer composed of partially hollow insulating blocks in the middle can effectively avoid the completely hollow insulating blocks being squeezed and deformed by the battery cells when the battery module vibrates, thereby preventing the surface of the battery cells from contacting the middle of the completely hollow insulating layer, thereby causing a short circuit in the battery module; the coolant channel can effectively improve the heat dissipation performance of the entire battery module through the circulating coolant during the operation of the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the frame layout structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the installation layout structure of the first insulating layer and the second insulating layer of the utility model;

[0020] Figure 4 This is a schematic diagram of the layout structure of the cooling liquid channel of the utility model;

[0021] Figure 5 It is a schematic diagram of the layout structure of the extension plate and the mounting holes of the utility model.

[0022] In the figure: 1. first frame; 2. second frame; 3. side frame; 4. partition frame; 5. battery cell; 6. monitoring module; 7. first insulating layer; 8. second insulating layer; 9. heat conducting plate; 10. extension plate; 11. liquid inlet; 12. coolant channel; 13. liquid outlet; 14. mounting hole. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1 The utility model provides a technical solution: a new energy vehicle integrated battery module, including: a module shell, the module shell is formed by a first frame 1, a second frame 2, and a side frame 3 connected end to end in sequence, the first frame 1 and the second frame 2 are arranged oppositely and in parallel, and two side frames 3 are arranged and are relatively parallel; a partition frame 4 is arranged between the first frame 1 and the second frame 2 and fixedly connected to the side frame 3, and a plurality of battery cells 5 are evenly distributed in two independent cavities formed by the partition frame 4 and the first frame 1 and the second frame 2; a first insulating layer 7 and a second insulating layer 8, the first insulating layer 7 is respectively arranged between the first frame 1, the second frame 2, the side frame 3, the partition frame 4 and the battery cell 5, the second insulating layer 8 is arranged between the side frame 3 and the battery cell 5, and the first insulating layer 7 and the second insulating layer 8 are both insulating blocks with hollow middle parts; a cooling liquid channel 12 is arranged in the inner cavity of the first frame 1, and a cooling liquid circulates in the cooling liquid channel 12.

[0025] The utility model can reduce the assembly process when assembling the entire battery module by providing the first frame 1, the second frame 2 and the side frame 3, and facilitate quick assembly. By providing the partition frame 4, it can be convenient to increase the number of assembled battery cells 5 in a single frame, thereby increasing the battery capacity in the module. By providing the insulating layer composed of the hollow insulating blocks in the middle, it can ensure material saving while effectively preventing the completely hollow insulating blocks from being squeezed and deformed by the battery cells 5 when the battery module vibrates, and then the surface of the battery cells 5 comes into contact with the middle of the completely hollow insulating layer, thereby causing a short circuit in the battery module. By providing the coolant channel 12, the heat dissipation performance of the entire battery module can be efficiently improved through the circulating coolant during the operation of the battery module.

[0026] In this embodiment, the first insulating layer 7 and the second insulating layer 8 are made of one or more of polypropylene, polyethylene and polycarbonate materials. The first insulating layer 7 is fixedly connected to the first frame 1, the second frame 2 and the partition frame 4, and the second insulating layer 8 is fixedly connected to the side frame 3. Figure 2 and 3 As shown, by fixing the first insulating layer 7 and the second insulating layer 8 to the frame in advance, it is possible to quickly assemble the entire battery module and reduce the overall assembly process.

[0027] In this embodiment, a heat conducting plate 9 is disposed between the side frame 3 and the first frame 1, and the heat conducting plate 9 is fixedly connected to the first frame 1. A slot with a single-side opening is provided on the side frame 3, and the slot and the heat conducting plate 9 can be plugged and connected. Figure 2-4 As shown, by setting the heat conducting plate 9, the heat conduction efficiency between the side frame 3 and the first frame 1 can be effectively improved, so that most of the heat is concentrated on the first frame 1, so that the entire battery module cavity can be quickly heat exchanged through the coolant channel 12; by setting the notch, when assembling the side frame 3, the assembly can be completed by plugging in from top to bottom, which simplifies the assembly process.

[0028] In this embodiment, the gap between the heat conducting plate 9 and the slot is filled with heat conducting silica gel. Figure 4 As shown, the thermally conductive silicone is provided to effectively avoid the gap between the notch and the heat conducting plate 9, thereby reducing the heat conduction efficiency between the side frame 3 and the first frame 1. In the actual assembly process, the thermally conductive silicone is preferentially applied to the heat conducting plate 9, and then the side frame 3 and the heat conducting plate 9 are plugged in after the coating.

[0029] In this embodiment, the lower parts of the first frame 1, the second frame 2 and the partition frame 4 are all integrally formed with an extension plate 10, and the extension plate 10 located on the first frame 1 and the second frame 2 is provided with a mounting hole 14. Figure 4 and 5 As shown, by providing the extension plate 10, the battery cell 5 can be placed stably, and by providing the mounting holes 14, the entire battery module can be easily installed with a matching mounting shell or support frame.

[0030] In this embodiment, the two ends of the cooling liquid channel 12 are connected to the liquid inlet 11 and the liquid outlet 13, respectively, and the liquid inlet 11 and the liquid outlet 13 are both provided with external threads. Figure 4 As shown, by providing a liquid inlet 11 and a liquid outlet 13 with external threads, it is possible to connect the cooling liquid channels 12 on multiple battery modules in series to achieve large-circulation heat dissipation of the cooling liquid; small-circulation heat dissipation can also be performed on the cooling liquid channels 12 between several battery modules.

[0031] In this embodiment, a monitoring module 6 is disposed on one side of the side frame 3 for monitoring the voltage and temperature of the battery cell 5 .

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new energy vehicle integrated battery module, comprising: a module shell, wherein the module shell is formed by a first frame, a second frame, and a side frame connected end to end in sequence, the first frame and the second frame are arranged opposite to each other and in parallel, and the side frames are arranged in two and are relatively parallel to each other; a partition frame, which is arranged between the first frame and the second frame and fixedly connected to the side frame, and a plurality of battery cells are evenly distributed in two independent cavities formed by the partition frame and the first frame and the second frame; a first insulating layer and a second insulating layer, wherein the first insulating layer is respectively arranged between the first frame, the second frame, the side frame, the partition frame and the battery cell, and the second insulating layer is arranged between the side frame and the battery cell, and the first insulating layer and the second insulating layer are both insulating blocks with hollow central portions; a cooling liquid channel, which is arranged in the inner cavity of the first frame, and cooling liquid circulates in the cooling liquid channel.

2. The new energy vehicle integrated battery module according to claim 1, characterized in that: The first insulating layer is fixedly connected to the first frame, the second frame and the partition frame, and the second insulating layer is fixedly connected to the side frame.

3. A new energy vehicle integrated battery module according to claim 1 or 2, characterized in that: A heat conducting plate is arranged between the side frame and the first frame, the heat conducting plate is fixedly connected to the first frame, a slot with a single-side opening is provided on the side frame, and the slot and the heat conducting plate can be plug-connected.

4. The new energy vehicle integrated battery module according to claim 3, characterized in that: The gap between the heat conducting plate and the notch is filled with heat conducting silica gel.

5. The new energy vehicle integrated battery module according to claim 4, characterized in that: The lower parts of the first frame, the second frame and the partition frame are all integrally formed with extension plates, and mounting holes are arranged on the extension plates located on the first frame and the second frame.

6. A new energy vehicle integrated battery module according to claim 4 or 5, characterized in that: The two ends of the cooling liquid channel are respectively connected with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are both provided with external threads.

7. The new energy vehicle integrated battery module according to claim 6, characterized in that: A monitoring module is provided on one side of the side frame for monitoring the voltage and temperature of the battery cell.

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