CN212571182U

CN212571182U - Power battery package structural system

Info

Publication number: CN212571182U
Application number: CN202021283813.3U
Authority: CN
Inventors: 程振醒; 江民; 董连庆
Original assignee: Chuangyuan Technology Co ltd
Current assignee: Chuangyuan Technology Co ltd
Priority date: 2020-07-04
Filing date: 2020-07-04
Publication date: 2021-02-19
Anticipated expiration: 2030-07-04

Abstract

The utility model discloses a power battery pack structure system, which comprises a battery tray, a box cover arranged together with the battery tray, and a battery module, a heat conducting pad and an electric connecting bar which are arranged in the space enclosed by the battery tray and the box cover; the battery modules are arranged in the front-back direction, the two battery modules are connected in series through the electric connecting row, the slave control box support is fixed on the battery tray through bolts in the middle of the two battery modules, the electric connecting row is located above the slave control box support, and the PC plastic-absorbing cover is installed above the installed battery modules and the electric connecting row. The utility model discloses be equipped with sealed the pad among the power battery package structural system, what set up on the sealed pad dodges the groove structure and can be very ingenious dodges the installation bush, improves sealed effect, satisfies the waterproof requirement of IP 68. Meanwhile, the three-layer protection of the air heat insulation layer, the PVC heat insulation stone-hitting-proof coating and the raised heat insulation layer has a good heat insulation effect, and heat exchange between the refrigerant and the outside of the box body is reduced.

Description

Power battery package structural system

The technical field is as follows:

the utility model relates to a power battery wraps structural system, it belongs to new forms of energy power battery package technical field.

Background art:

the power battery pack is a core component of the electric automobile and is one of core components of new energy products. In the prior art, when an electric automobile wades or soaks water for a short time, the battery pack is used as a high-voltage charged energy storage product, once the battery pack leaks electricity due to water inflow, the consequences are unreasonable. Meanwhile, the battery pack is provided with the heat dissipation aluminum plate and the heat insulation shell, the heat dissipation holes are formed in the heat insulation shell, and the roller shutter is arranged in the heat insulation shell, so that the effects of heat preservation and temperature regulation are achieved. Although the mode can play certain heat preservation effect, increased the whole space size of battery package, be unfavorable for the laying of battery package.

Therefore, there is a need to improve the prior art to overcome the deficiencies of the prior art.

The utility model has the following contents:

the utility model relates to a solve the problem that above-mentioned prior art exists and provide a power battery package structural system, its sealed effect can reach IP68 waterproof rating, and battery tray has the three-layer and keeps warm the protection and can play better thermal-insulated effect and reduce the refrigerant and carry out the heat exchange with the box outside simultaneously.

The utility model discloses the technical scheme who adopts has: a power battery pack structure system comprises a battery tray, a box cover, a battery module, a heat conducting pad and an electric connection bar, wherein the box cover is installed together with the battery tray, and the battery module, the heat conducting pad and the electric connection bar are installed in a space defined by the battery tray and the box cover;

the battery module is including two that the fore-and-aft direction set up altogether, establishes ties through electric connection row between two battery modules, and the position bolt fastening that lies in two battery module middles on the battery tray has from accuse box support, and electric connection row lies in the top from accuse box support, installs the PC plastic uptake lid in the top of above-mentioned battery module and electric connection row that install.

Further, battery tray's last surface mounting has sealed the pad, and the outside surface protrusion of the perimeter direction of sealed pad is formed with a plurality of equidistance spaced apart bellying, forms between two adjacent bellying to avoid the groove run through on the bellying and be formed with first through-hole, battery tray and the position of lining up about the first through-hole on sealed pad is formed with the second through-hole mutually, the protruding installation bush that is formed with a plurality of equidistance spaced apart on the battery tray, the installation bush is located and avoids the groove.

Further, the case lid includes box portion and the platform portion that forms from the lower terminal outside extension of box portion, the position that aligns from top to bottom with first through-hole, second through-hole in the platform portion is formed with the third through-hole, and the position that aligns from top to bottom mutually with the installation bush in the platform portion is sunken to be formed with the recess, the installation bush is installed in the recess and is dodged in the groove.

Further, a frame opening part is formed on the front surface of the box cover, and an electric fixing plate is installed in the frame opening part.

Furthermore, a sealing gasket is fixedly arranged on one side of the electric fixing plate opposite to the battery module.

Further, the sealing gasket is rectangular.

Further, battery tray includes the chassis and is located the crossbeam on the chassis, and it has the spaced apart liquid cooling pipeline of a plurality of to run through along chassis length direction in the chassis, the liquid cooling pipeline is according to controlling averagely to divide into two parts, is located the liquid inlet pipeline of left liquid cooling pipeline as the refrigerant, and the liquid cooling pipeline that is located the right side is as the liquid outlet pipeline of refrigerant, and the lower surface of liquid cooling pipeline is equipped with air insulation layer, the bottom spraying on chassis has the thermal-insulated stonecutter prevention coating of PVC, and two terminal extensions exceed the thermal-insulated protruding insulating layer that forms in the below of the thermal-insulated stonecutter prevention coating of.

Further, the air insulation layer is hollow.

Further, the height of protruding insulating layer is 1.5 mm.

The utility model discloses following beneficial effect has:

(1) the utility model discloses be equipped with sealed the pad among the power battery package structural system, what set up on the sealed pad dodges the groove structure and can be very ingenious dodges the installation bush, improves sealed effect, satisfies the waterproof requirement of IP 68.

(2) The utility model discloses in the battery tray among the power battery package structural system through air insulating layer, PVC thermal-insulated prevent that the stone hits coating and protruding insulating layer three-layer protection play better thermal-insulated effect and reduce the refrigerant and carry out the heat exchange with the box outside.

Description of the drawings:

fig. 1 is a schematic structural diagram of the power battery pack structure system of the present invention.

Fig. 2 is a schematic structural view of the battery tray of the present invention.

Fig. 3 is a top view of fig. 2.

Fig. 4 is a cross-sectional view taken along line a-a of fig. 3.

Fig. 5 is a schematic structural diagram of the sealing gasket of the present invention.

The specific implementation mode is as follows:

the present invention will be further described with reference to the accompanying drawings.

The utility model discloses power battery package structural system includes battery tray 1, installs in case lid 2 together and installs in battery module 3 and heat conduction pad 5 in the space that battery tray and case lid 2 enclose with battery tray 1.

The battery module 3 is including two that the fore-and-aft direction set up altogether, and two battery modules 3 are established ties through electric connection row 8 between, and the position bolt fastening that lies in two battery modules 3 on the battery tray 1 is with from accuse box support 9, and electric connection row 8 lies in the top from accuse box support 9. A PC plastic cap 110 is mounted above the mounted battery modules 3 and the electrical connection bars 8 to perform an insulation protection function.

The upper surface mounting of battery tray 1 has sealed 4, and sealed 4 of filling up is rectangular form, and the outside surface protrusion of its girth direction is formed with a plurality of equidistance and separates the bellying 40 mutually, forms between two adjacent bellying 40 and dodges groove 41, runs through on bellying 40 and is formed with first through-hole 42. The battery tray 1 is formed with a second through hole 10 at a position vertically aligned with the first through hole 42 of the gasket 4. The battery tray 1 is formed with a plurality of mounting bushes 11 equidistantly spaced from each other in a protruding manner, and the mounting bushes 11 are located in the escape grooves 41.

The battery tray 1 comprises a chassis 12 and a cross beam 13 positioned on the chassis 12, wherein a plurality of spaced liquid cooling pipelines 14 penetrate through the chassis 12 along the length direction of the chassis 12, the liquid cooling pipelines 14 are evenly divided into two parts according to the left and right sides, the liquid cooling pipeline 14 positioned on the left side is used as a liquid inlet pipeline of a refrigerant, the liquid cooling pipeline 14 positioned on the right side is used as a liquid outlet pipeline of the refrigerant, an air heat insulation layer 15 is arranged on the lower surface of the liquid cooling pipeline 14, and the air heat insulation layer 15 is hollow. The bottom of the chassis 12 is sprayed with a PVC heat insulation stone-hit prevention coating 16, and the left and right ends of the chassis 12 extend 1.5mm beyond the lower part of the PVC heat insulation stone-hit prevention coating 16 to form a 1.5mm raised heat insulation layer 17.

A liquid inlet 18 communicated with the liquid inlet pipeline is arranged at the position of one end of the liquid inlet pipeline on the chassis 1, and a liquid outlet 19 communicated with the liquid outlet pipeline is arranged at the position of the chassis 12 which is aligned with the liquid inlet 18. The other ends of the liquid inlet pipeline and the liquid outlet pipeline are communicated, so that the refrigerant in the liquid inlet pipeline can flow into the liquid outlet pipeline.

The box cover 2 comprises a box body part 20 with a hollow bottom and a platform part 21 formed by extending outwards from the lower tail end of the box body part 20, a third through hole 22 is formed in the platform part 21 at the position aligned with the first through hole 42 and the second through hole 10 up and down, a groove 23 is formed in the platform part 21 at the position aligned with the mounting bush 11 up and down in a concave mode, and the mounting bush 11 is mounted in the groove 23 and the avoiding groove 41. A bezel portion 24 is formed on the front surface of the case cover 2, and the electrical fixing plate 6 is mounted in the bezel portion 24. A gasket 7 is fixed to the electric fixing plate 6 on the side opposite to the battery module 3.

The utility model discloses in the time of power battery package structural system equipment, heat conduction pad 5 pastes and installs battery module 3 on heat conduction pad 5 after on battery tray 1's the internal surface, then case lid 2 and battery tray 1 are installed mutually together, through install in first through-hole 42, second through-hole 10 and third through-hole 22 rivet the nut and then with battery tray 1, case lid 2 and sealed 4 installation of packing together. The mounting bush 11 now lies exactly in the escape slot 41. Meanwhile, the battery tray 1 is protected by the air heat insulation layer 11, the PVC heat insulation stone-hit prevention coating 12 and the raised heat insulation layer 13 to achieve a good heat insulation effect, so that heat exchange between the refrigerant and the outside of the box body is reduced.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. A power battery package structural system which characterized in that: the battery heat-conducting device comprises a battery tray (1), a box cover (2) which is installed together with the battery tray (1), a battery module (3), a heat-conducting pad (5) and an electric connecting row (8), wherein the battery module (3), the heat-conducting pad and the electric connecting row are installed in a space which is enclosed by the battery tray and the box cover (2);

battery module (3) are including two that the fore-and-aft direction set up altogether, establish ties through electric connection row (8) between two battery modules (3), and the position bolt fastening that lies in two battery modules (3) on battery tray (1) is equipped with from accuse box support (9), and electric connection row (8) are located the top from accuse box support (9), installs PC plastic uptake lid (110) in the top of above-mentioned battery module (3) that install and electric connection row (8).

2. The power battery pack construction system of claim 1, wherein: the last surface mounting of battery tray (1) has sealed the pad (4), and the outside surface protrusion of the girth direction of sealed pad (4) is formed with a plurality of equidistance apart boss (40), forms between two adjacent bosses (40) and dodges groove (41) run through on boss (40) and be formed with first through-hole (42), battery tray (1) is formed with second through-hole (10) with the position of lining up about first through-hole (42) on sealed pad (4) is relative, the protruding installation bush (11) that are formed with a plurality of equidistance apart on battery tray (1), and installation bush (11) are located and dodge groove (41).

3. The power battery pack construction system of claim 2, wherein: case lid (2) include casing portion (20) and from lower terminal platform portion (21) of outwards extending formation of casing portion (20), the position of aligning about mutually with first through-hole (42), second through-hole (10) on platform portion (21) is formed with third through-hole (22), and the position of aligning about mutually with installation bush (11) is sunken to be formed with recess (23) on platform portion (21), installation bush (11) are installed in recess (23) and are dodged in groove (41).

4. The power battery pack construction system of claim 3, wherein: a frame opening part (24) is formed on the front surface of the box cover (2), and an electric fixing plate (6) is installed in the frame opening part (24).

5. The power battery pack construction system of claim 4, wherein: and a sealing gasket (7) is fixedly arranged on one side of the electric fixing plate (6) opposite to the battery module (3).

6. The power battery pack construction system of claim 5, wherein: the sealing gasket (4) is rectangular.

7. The power battery pack construction system of claim 1, wherein: battery tray (1) includes chassis (12) and crossbeam (13) that are located on chassis (12), and it has spaced apart liquid cooling pipeline (14) to run through along chassis (12) length direction in chassis (12), liquid cooling pipeline (14) are according to controlling averagely to divide into two parts, are located left liquid cooling pipeline (14) and regard as the inlet liquid pipeline of refrigerant, and liquid cooling pipeline (14) that are located the right side are as the liquid outlet pipe of refrigerant, and the lower surface of liquid cooling pipeline (14) is equipped with air insulating layer (15), the bottom spraying on chassis (12) has PVC thermal-insulated stone-attack-preventing coating (16), and two ends extend and surpass the below of PVC thermal-insulated stone-attack-preventing coating (16) about chassis (12) and form protruding insulating layer (17).

8. The power battery pack construction system of claim 7, wherein: the air heat insulation layer (15) is hollow.

9. The power battery pack construction system of claim 8, wherein: the height of the raised heat insulation layer (17) is 1.5 mm.