CN209880681U - Battery package of new energy automobile - Google Patents

Abstract

The utility model discloses a battery package for a new energy vehicle, which comprises a plurality of electric cores, the electric cores are connected in series, the several electric cores are arranged in two rows, and the electric cores in each row are arranged at intervals from each other. A cooling plate is arranged between two adjacent battery cells, a coolant inlet pipe is arranged at the top between the two rows of the battery cells, and a coolant outlet pipe is arranged on the outside of the two rows of the battery cells, and the cooling plate is provided with a snake A cooling channel is formed, the top of the cell is connected with a top plate, and the side is connected with a first side plate and a second side plate. The battery package of a new energy vehicle described in the utility model can improve the heat dissipation efficiency of the battery.

Description

A battery package for new energy vehicles

technical field

The utility model relates to a battery, in particular to a battery package suitable for new energy vehicles.

Background technique

In recent years, with the aggravation of environmental pollution and the depletion of chemical fuel resources, hybrid vehicles and electric vehicles driven by electric energy have appeared. The battery of a hybrid or electric vehicle is a core component. During the long-term charging and discharging process of the battery, a large amount of heat will be generated. If the heat cannot be removed in time, serious accidents may occur.

Common cooling methods include natural cooling, air cooling and water cooling: natural cooling refers to accelerating the heat exchange with the surrounding environment by setting fins, which is simple but the lowest efficiency; air cooling refers to installing fans and With a well-designed air duct, heat dissipation is achieved by speeding up the flow of air. This heat dissipation method is more efficient than natural cooling, but it will cause the battery to be too large. The coolant in the liquid channel takes away the generated heat, which is the highest heat dissipation method.

However, due to the unreasonable design of the existing water-cooled heat dissipation method, when the coolant flows from the inlet to the outlet, the temperature of the coolant has become high, which cannot fully cool the various parts of the battery. The temperature is consistent, but the cooling efficiency is greatly reduced.

Contents of the invention

Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a battery package for a new energy vehicle to improve the cooling efficiency of the battery.

Technical solution: In order to achieve the above purpose, a battery package for a new energy vehicle of the present invention includes a plurality of battery cells connected in series with each other, and the plurality of battery cells are arranged in two rows, and each of the battery cells in each row The battery cells are arranged at intervals, a cooling plate is arranged between two adjacent battery cells, a coolant inlet pipe is arranged at the top between the two rows of the battery cells, and a coolant outlet pipe is arranged on the outside of the two rows of the battery cells. The cooling plate is provided with a cooling channel, and both the cooling liquid inlet pipe and the cooling liquid outlet pipe communicate with the cooling channel.

Further, the cooling channels are distributed in a serpentine shape.

Further, the cooling liquid inlet pipe is covered with a thermal insulation film.

Further, a first heat-conducting silica gel pad is provided on the side of the battery cell, and the cooling plate is pressed and connected to the first heat-conducting silica gel pads of two adjacent battery cells.

Further, a second heat-conducting silica gel pad is arranged between the two rows of cells, and the second heat-conducting silica gel pad is arranged below the coolant inlet pipe.

Further, it also includes a top plate, a first side plate and a second side plate, the top plate is connected above the electric core, the first side plate is arranged in parallel with the coolant inlet pipe, and is connected to the electric core The two sides of the second side plate are perpendicular to the coolant inlet pipe and are connected to both ends of the battery core.

Further, the second side plate is provided with a first clamping slot, and the top plate is provided with a second clamping slot, the first clamping slot and the second clamping slot are vertically opposite, and both of them are engaged with the coolant inlet pipe.

Further, the outer side of the first side plate is provided with fins.

The beneficial effects of the utility model are as follows: a battery package of a new energy vehicle, a heat dissipation plate is installed between each electric core, each heat dissipation plate is connected in parallel with a cooling pipe, and each electric core can be cooled at the same time , and at the same time, the heat dissipation between the various cells will not affect each other, which improves the heat dissipation efficiency.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model;

Accompanying drawing 2 is the structural explosion figure of the utility model;

Accompanying drawing 3 is the structural representation of the electric core described in the utility model;

Accompanying drawing 4 is the structural representation of the radiator plate described in the utility model;

Accompanying drawing 5 is the schematic diagram of the battery water cooling principle of the new energy vehicle.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described further.

A battery package for a new energy vehicle as shown in accompanying drawings 1 to 5, includes a plurality of battery cells 1 connected in series, and the plurality of battery cells 1 are arranged in two rows, each of the battery cells in each row The battery cells 1 are arranged at intervals, a cooling plate 2 is provided between two adjacent battery cells 1, a cooling liquid inlet pipe 3 is provided at the top between two rows of the battery cells 1, and the outer sides of the two rows of the battery cells 1 are provided There is a cooling liquid outlet pipe 4, the cooling plate 2 is provided with a cooling passage 5, and the cooling liquid inlet pipe 3 and the cooling liquid outlet pipe 4 both communicate with the cooling passage 5.

The liquid cooling principle of the new energy vehicle in this implementation is shown in Figure 5, in which the dotted line represents the control signal flow, and the solid line represents the liquid flow. The cooling liquid passing through the battery module is circulated through the heat exchange plate, heater and water pump. The cooling in the heat exchange plate is completed by the compressor, cooler and fan. The whole process is completed by the ECU controller. control of the entire process.

The cooling channel 5 is distributed in a serpentine shape to increase the area of heat exchange. The cooling liquid inlet pipe 3 is covered with a thermal insulation film. In this embodiment, the thermal insulation film in this embodiment is a glass thermal insulation film. The purpose of wrapping the heat insulation film on the outside of the coolant inlet pipe is to prevent the coolant from exchanging heat in the coolant inlet pipe, so as to ensure that the temperature of the coolant flowing into the cooling plate between the cells is relatively low.

A first heat-conducting silica gel pad 6 is provided on the side of the battery cell 1 , and the cooling plate 2 is pressed and connected to the first heat-conducting silica gel pads 6 of two adjacent battery cells 1 .

A second heat-conducting silica gel pad 7 is arranged between the two rows of the battery cells 1, and the second heat-conducting silica gel pad 7 is arranged below the coolant inlet pipe 3, and the second heat-conducting silica gel pad can promote the heat balance between each battery cell .

It also includes a top plate 10, a first side plate 8 and a second side plate 9, the top plate 10 is connected above the electric core 1, the first side plate 8 is arranged in parallel with the coolant inlet pipe 3, and is connected to On both sides of the battery cell 1, the second side plate 9 and the coolant inlet pipe 3 are vertically arranged and connected to both ends of the battery cell 1. Since the battery cell is also connected to the BMS, that is, the battery management system, to To realize the control of the charging and discharging of the battery cells, a wiring hole 14 for wiring is also arranged on the top plate.

The second side plate 9 is provided with a first card slot 11, and the top plate 10 is provided with a second card slot 12, the first card slot 11 is opposite to the second card slot 12 up and down, and both are connected to the coolant inlet pipe. 3 Snap to realize the fixation of the coolant inlet pipe.

The outer side of the first side plate 8 is provided with fins 13, the coolant outlet pipe is fixed with the first side plate, and skirts 15 are arranged around the first side plate, on which the skirt 15 Threaded holes are provided, and the skirt is fixed with the top plate and the second side plate by bolts.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made. Retouching should also be regarded as the scope of protection of the present utility model.

Claims (8)

1. The utility model provides a new energy automobile's battery encapsulation which characterized in that: including a plurality of electric cores (1), electric core (1) is established ties each other, and is a plurality of two rows of settings are divided in electric core (1), each in every row electric core (1) separates the setting each other, is provided with cooling plate (2) between two adjacent electric cores (1), and is two rows the top is provided with the coolant liquid and advances pipe (3) between electric core (1), and is two rows the outside of electric core (1) is provided with coolant liquid exit tube (4), cooling plate (2) are provided with cooling channel (5), coolant liquid advances pipe (3) and coolant liquid exit tube (4) and all communicates with each other with cooling channel (5).

2. The battery package of the new energy automobile according to claim 1, wherein: the cooling channels (5) are distributed in a serpentine shape.

3. The battery package of the new energy automobile according to claim 1, wherein: and a heat insulation film is coated outside the cooling liquid inlet pipe (3).

4. The battery package of the new energy automobile according to claim 1, wherein: the side of electric core (1) is provided with first heat conduction silica gel pad (6), cooling plate (2) support the pressure to connect on first heat conduction silica gel pad (6) of two adjacent electric cores (1).

5. The battery package of the new energy automobile according to claim 1, wherein: two rows be provided with second heat conduction silica gel pad (7) between electric core (1), second heat conduction silica gel pad (7) set up in the below that the coolant liquid advances pipe (3).

6. The battery package of the new energy automobile according to claim 1, wherein: the battery cell structure is characterized by further comprising a top plate (10), a first side plate (8) and a second side plate (9), wherein the top plate (10) is connected above the battery cell (1), the first side plate (8) and the cooling liquid are arranged in parallel and connected to the two sides of the battery cell (1), and the second side plate (9) and the cooling liquid are arranged perpendicularly to the battery cell (3) and connected to the two ends of the battery cell (1).

7. The battery pack of the new energy automobile according to claim 6, wherein: the cooling structure is characterized in that a first clamping groove (11) is formed in the second side plate (9), a second clamping groove (12) is formed in the top plate (10), the first clamping groove (11) is vertically opposite to the second clamping groove (12), and the first clamping groove (11) and the second clamping groove (12) are clamped with the cooling liquid inlet pipe (3).

8. The battery pack of the new energy automobile according to claim 6, wherein: fins (13) are arranged on the outer side of the first side plate (8).